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Journal articles on the topic 'VFA'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Malnoy, Mickael, Mingliang Xu, Ewa Borejsza-Wysocka, Schuyler S. Korban, and Herb S. Aldwinckle. "Two Receptor-Like Genes, Vfa1 and Vfa2, Confer Resistance to the Fungal Pathogen Venturia inaequalis Inciting Apple Scab Disease." Molecular Plant-Microbe Interactions® 21, no. 4 (2008): 448–58. http://dx.doi.org/10.1094/mpmi-21-4-0448.

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The Vf locus, originating from the crabapple species Malus floribunda 821, confers resistance to five races of the fungal pathogen Venturia inaequalis, the causal agent of apple scab disease. Previously, a cluster of four receptor-like genes, Vfa1, Vfa2, Vfa3, and Vfa4, was identified within the Vf locus. Because the amino-acid sequence of Vfa3 is truncated, it was deemed nonfunctional. In this study, each of the three full-length Vfa genes was introduced into a plant cloning vector, pCAMBIA2301, and used for Agrobacterium-mediated transformation of two apple cultivars, Galaxy and McIntosh, to

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2

Xu, Mingliang, and Schuyler S. Korban. "A Cluster of Four Receptor-Like Genes Resides in the Vf Locus That Confers Resistance to Apple Scab Disease." Genetics 162, no. 4 (2002): 1995–2006. http://dx.doi.org/10.1093/genetics/162.4.1995.

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Abstract The Vf locus, derived from the crabapple species Malus floribunda 821, confers resistance to five races of the fungal pathogen Venturia inaequalis, the causal agent of apple scab disease. In our previous research, the Vf locus was restricted to a BAC contig of ∼290 kb covered by five overlapping BAC clones. Here, we report on cloning of the resistance gene(s) present in the Vf BAC contig using a highly reliable and straightforward approach. This approach relies on hybridization of labeled cDNAs to amplified inserts of subclones derived from BAC inserts, followed by recovery of full-si

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Abe, Yuriko, Ryousuke Tonouchi, Mitsuhiko Hara, et al. "Visceral Fat Area Measured by Abdominal Bioelectrical Impedance Analysis in School-Aged Japanese Children." Journal of Clinical Medicine 11, no. 14 (2022): 4148. http://dx.doi.org/10.3390/jcm11144148.

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Abdominal bioelectrical impedance analysis (aBIA) has been in use to measure visceral fat area (VFA) in adults. Accurately measuring visceral fat using aBIA in children is challenging. Forty-six school-aged Japanese children aged 6–17 years (25 boys and 21 girls) were included in this study. All were measured, and their VFA obtained using aBIA (VFA-aBIA) and abdominal computed tomography (CT) (VFA-CT) were compared. VFA-aBIA was corrected using the Passing–Bablok method (corrected VFA-aBIA). The relationships between corrected VFA-aBIA and obesity-related clinical factors were analyzed, includ

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Sørmo, W., Ø. E. Haga, R. G. White, and S. D. Mathiesen. "Comparative aspects of volatile fatty acid production in the rumen and distal fermentation chamber in Svalbard reindeer." Rangifer 17, no. 2 (1997): 81. http://dx.doi.org/10.7557/2.17.2.1355.

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Microbial fermentation end products were investigated in Svalbard reindeer at two different locations, on Nordenskioldland (NL) (n=7) and in a marginal area on Nordaustlandet (NA) (n=11), at different seasons. The pH ranged from 6.51-6.70 in rumen contents and from 6.78-7.17 in the distal fermentation chamber (DFC=caecum and proximal part of the colon) on NL compared to 6.10-6.71 in rumen contents and 6.50-7.35 in DFC contents on NA. The ruminal volatile fatty acid concentration ([VFAJ) was 84.5 &plusmn; 9.5 mmol/l compared to 63-9 &plusmn; 17.6 mmol/kg in the DFC on NL in winter. In a

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Sukphun, Prawat, Sureewan Sittijunda, and Alissara Reungsang. "Volatile Fatty Acid Production from Organic Waste with the Emphasis on Membrane-Based Recovery." Fermentation 7, no. 3 (2021): 159. http://dx.doi.org/10.3390/fermentation7030159.

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In recent years, interest in the biorefinery concept has emerged in the utilization of volatile fatty acids (VFAs) produced by acidogenic fermentation as precursors for various biotechnological processes. This has attracted substantial attention to VFA production from low-cost substrates such as organic waste and membrane based VFA recovery techniques to achieve cost-effective and environmentally friendly processes. However, there are few reviews which emphasize the acidogenic fermentation of organic waste into VFAs, and VFA recovery. Therefore, this article comprehensively summarizes VFA prod

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Ozato, Naoki, Shinnichiro Saitou, Tohru Yamaguchi, et al. "Association between Visceral Fat and Brain Structural Changes or Cognitive Function." Brain Sciences 11, no. 8 (2021): 1036. http://dx.doi.org/10.3390/brainsci11081036.

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Visceral fat accumulation is an independent risk factor for cardiovascular disease and mortality. Visceral fat is a causal risk factor for hypertension and type 2 diabetes, which was reported as one of the risk factors for dementia. Visceral fat areas (VFA) might be clinically important to prevent dementia; however, the association between VFA and cognitive function in the elderly remains unknown. We aimed to evaluate the association between brain structural abnormalities using magnetic resonance imaging (MRI) and VFA, and the association between cognitive function and VFA, in the elderly. A t

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7

Asano, Takeharu, Naoto Kubota, Norihiro Koizumi, et al. "Novel and Simple Ultrasonographic Methods for Estimating the Abdominal Visceral Fat Area." International Journal of Endocrinology 2017 (2017): 1–12. http://dx.doi.org/10.1155/2017/8796069.

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Objectives.To evaluate the abdominal visceral fat area (VFA), we developed novel ultrasonographic (US) methods for estimating.Methods.100 male volunteers were recruited, and their VFA was calculated by two novel US methods, the triangle method and the ellipse method. The VFA calculated by these methods was compared with the VFA calculated by CT.Results.Both the VFA calculated by the triangle method (r=0.766,p<0.001) and the ellipse method (r=0.781,p<0.001) showed a high correlation coefficient with the VFA calculated by CT. Also, the VFA calculated by our novel methods were significantly

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Bannink, A., J. France, and J. Dijkstra. "Improving the prediction of rumen volatile fatty acids in lactating dairy cows." Proceedings of the British Society of Animal Science 1996 (March 1996): 240. http://dx.doi.org/10.1017/s1752756200594320.

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Volatile fatty acids (VFA) constitute the largest fraction of metabolizable energy absorbed from the gastrointestinal tract of dairy cows. The molar proportion of individual VFA is important because individual VFA have a different fate in intermediary metabolism. However, rumen models predict the VFA molar proportions inaccurately from feed characteristics (Dijkstra, 1993). To investigate what model elements are responsible for this inaccuracy, modified descriptions of several elements were tested and sensitivity of VFA predictions was determined. This simulation study aims to identify model e

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9

Bannink, A., J. France, and J. Dijkstra. "Improving the prediction of rumen volatile fatty acids in lactating dairy cows." Proceedings of the British Society of Animal Science 1996 (March 1996): 240. http://dx.doi.org/10.1017/s0308229600032037.

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Volatile fatty acids (VFA) constitute the largest fraction of metabolizable energy absorbed from the gastrointestinal tract of dairy cows. The molar proportion of individual VFA is important because individual VFA have a different fate in intermediary metabolism. However, rumen models predict the VFA molar proportions inaccurately from feed characteristics (Dijkstra, 1993). To investigate what model elements are responsible for this inaccuracy, modified descriptions of several elements were tested and sensitivity of VFA predictions was determined. This simulation study aims to identify model e

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Liu, Yongke, Dong Guo, Zhaojian Niu, et al. "Prediction of the Risk of Laparoscopy-Assisted Gastrectomy by Comparing Visceral Fat Area and Body Mass Index." Gastroenterology Research and Practice 2018 (September 13, 2018): 1–7. http://dx.doi.org/10.1155/2018/1359626.

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Propose. The purpose of this study was to compare the accuracy of visceral fat area (VFA) and body mass index (BMI) in predicting the risk of laparoscopic-assisted gastrectomy. Methods. Clinicopathological and imaging data of 133 patients who underwent laparoscopy-assisted gastrectomy were recorded, including 17 cases of conversion to open surgery. The remaining 116 patients were retrospectively analyzed after we excluded 17 patients who had been transferred to laparotomy. The patients were divided into two groups according to BMI (≤25 kg/m2: BMI-L group; >25 kg/m2: BMI-H group) and VFA (≤1

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Yu, Zhiyong, Rongxin Tang, Kai Yuan, et al. "Investigation of Parameter Effects on Virtual-Spring-Force Algorithm for Wireless-Sensor-Network Applications." Sensors 19, no. 14 (2019): 3082. http://dx.doi.org/10.3390/s19143082.

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Virtual-force algorithms (VFAs) have been widely studied for accurate node deployment in wireless-sensor-network (WSN) applications. Their main purpose is to achieve the maximum coverage area with the minimum number of sensor nodes in the target area. Recently, we reported a new VFA based on virtual spring force (VFA-SF) and discussed in detail the corresponding efficiency via statistical analysis. The optimized strategy by adding an external central force (VFA-SF-OPT) was presented, which effectively eliminates the coverage hole or twisted structure in the final network distribution. In this

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Giduthuri, Anthony T., and Birgitte K. Ahring. "Current Status and Prospects of Valorizing Organic Waste via Arrested Anaerobic Digestion: Production and Separation of Volatile Fatty Acids." Fermentation 9, no. 1 (2022): 13. http://dx.doi.org/10.3390/fermentation9010013.

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Volatile fatty acids (VFA) are intermediary degradation products during anaerobic digestion (AD) that are subsequently converted to methanogenic substrates, such as hydrogen (H2), carbon dioxide (CO2), and acetic acid (CH3COOH). The final step of AD is the conversion of these methanogenic substrates into biogas, a mixture of methane (CH4) and CO2. In arrested AD (AAD), the methanogenic step is suppressed to inhibit VFA conversion to biogas, making VFA the main product of AAD, with CO2 and H2. VFA recovered from the AAD fermentation can be further converted to sustainable biofuels and bioproduc

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Kadowaki, Satoshi, Yoshifumi Tamura, Yuki Someya, et al. "Fatty Liver Has Stronger Association With Insulin Resistance Than Visceral Fat Accumulation in Nonobese Japanese Men." Journal of the Endocrine Society 3, no. 7 (2019): 1409–16. http://dx.doi.org/10.1210/js.2019-00052.

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Abstract Context Asians have a high prevalence of insulin resistance, even in the nonobese state. Whereas both visceral fat accumulation (VFA) and fatty liver (FL) have been shown to be associated with insulin resistance, it is still unclear which is a better marker to predict insulin resistance in nonobese Asians. Objective The aim of this study was to investigate the relation between VFA or FL and insulin resistance in nondiabetic nonobese Japanese men who do not have diabetes. Design and Participants We studied 87 nonobese (body mass index <25 kg/m2) Japanese men without diabetes. Using

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Bergman, E. N. "Energy contributions of volatile fatty acids from the gastrointestinal tract in various species." Physiological Reviews 70, no. 2 (1990): 567–90. http://dx.doi.org/10.1152/physrev.1990.70.2.567.

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The VFA, also known as short-chain fatty acids, are produced in the gastrointestinal tract by microbial fermentation of carbohydrates and endogenous substrates, such as mucus. This can be of great advantage to the animal, since no digestive enzymes exist for breaking down cellulose or other complex carbohydrates. The VFA are produced in the largest amounts in herbivorous animal species and especially in the forestomach of ruminants. The VFA, however, also are produced in the lower digestive tract of humans and all animal species, and intestinal fermentation resembles that occurring in the rume

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Buttigieg, Christopher P., and Gerd Sapiano. "A critical examination of the VFA framework – the VFA agent and beyond." Law and Financial Markets Review 14, no. 1 (2019): 48–58. http://dx.doi.org/10.1080/17521440.2019.1640421.

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Angelina, Chalima, Oliver Laura, Fernandez de Castro Laura, Karnaouri Anthi, Dietrich Thomas, and Topakas Evangelos. "Utilization of Volatile Fatty Acids from Microalgae for the Production of High Added Value Compounds." Fermentation 3 (October 15, 2017): 54. https://doi.org/10.3390/fermentation3040054.

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Volatile Fatty Acids (VFA) are small organic compounds that have attracted much attention lately, due to their use as a carbon source for microorganisms involved in the production of bioactive compounds, biodegradable materials and energy. Low cost production of VFA from different types of waste streams can occur via dark fermentation, offering a promising approach for the production of biofuels and biochemicals with simultaneous reduction of waste volume. VFA can be subsequently utilized in fermentation processes and efficiently transformed into bioactive compounds that can be used in the foo

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Er, Leay Kiaw, Meng-Chun Lin, Yao-Chou Tsai, et al. "Association of visceral adiposity and clinical outcome among patients with aldosterone producing adenoma." BMJ Open Diabetes Research & Care 8, no. 1 (2020): e001153. http://dx.doi.org/10.1136/bmjdrc-2019-001153.

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IntroductionPrimary aldosteronism (PA) is a common form of secondary hypertension that has significant cardiovascular events and increased prevalence of metabolic syndrome and diabetics. Although plasma aldosterone concentration is positively correlated with visceral fat area (VFA) in non-PA individuals, the role of visceral adiposity associated with clinical success after surgery is not known.Research design and methodsWe analyzed patients who underwent adrenalectomy for aldosterone-producing adenoma (APA) at the Taiwan PA Investigator group. VFA was calculated from the abdominal CT scan at A

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Kinoshita, Keita, Naoki Ozato, Tohru Yamaguchi, et al. "Association between visceral fat and influenza infection in Japanese adults: A population-based cross-sectional study." PLOS ONE 17, no. 7 (2022): e0272059. http://dx.doi.org/10.1371/journal.pone.0272059.

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Background Several studies have reported that obesity is associated with influenza infection; however, the role of visceral fat remains unclear. The aim of this study was to investigate the association between visceral fat and influenza infection in community-dwelling Japanese adults. Methods A cross-sectional study was performed using data from an annual community-based health check-up conducted from May to June in 2019. In total, 1,040 Japanese adults aged 20–89 years were enrolled in this study. Influenza infection status was determined by participants’ responses to a self-administered ques

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Deng, Ke, Xin Zhang, Ying Liu, et al. "Visceral obesity is associated with clinical and inflammatory features of asthma: A prospective cohort study." Allergy and Asthma Proceedings 41, no. 5 (2020): 348–56. http://dx.doi.org/10.2500/aap.2020.41.200054.

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Background: Although studies have consistently linked obesity and asthma, the potential influence of visceral obesity on asthma has not been well investigated. Objective: To study the associations of visceral fat area (VFA) and clinical and inflammatory features of asthma and to further explore the effects of VFA on the future risk of asthma exacerbation. Methods: A 12-month prospective cohort study based on the Australasian Severe Asthma Network was designed to observe patients with stable asthma grouped by the median value of VFA. The clinical and inflammatory features of asthma were compare

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Wang, Xia, Hong Cheng, Jingfan Xiong, et al. "Exploring Visceral Fat as a Screening Marker for Cardiometabolic Risk in Children and Adolescents." Children 12, no. 3 (2025): 308. https://doi.org/10.3390/children12030308.

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Objective: To establish and validate age- and sex-specific visceral fat area (VFA) cutoff values for the effective identification of cardiometabolic risk (CMR) in children and adolescents. Methods: A cross-sectional study involving 8133 participants was conducted to derive age- and sex-specific VFA cutoffs, which were validated in a longitudinal cohort comprising 10,805 individuals. The predictive performance of the derived VFA cutoffs for CMR was evaluated using the area under the receiver operating characteristic curve (AUC). Additionally, logistic regression models were utilized to calculat

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Hayashi, Yoshinori, Hirohide Yokokawa, Hiroshi Fukuda, et al. "Association between Visceral or Subcutaneous Fat Accumulation and B-Type Natriuretic Peptide among Japanese Subjects: A Cross-Sectional Study." Journal of Clinical Medicine 10, no. 6 (2021): 1315. http://dx.doi.org/10.3390/jcm10061315.

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Background: Some previous studies have shown reduced levels of plasma B-type natriuretic peptide (BNP) in individuals with obesity. We aimed to estimate the relationship between BNP and abdominal fat distribution, adjusted for confounding factors. Methods: This cross-sectional study included 1806 Japanese individuals (981 men and 825 women) who underwent a medical health check-up. Analyzed data included age, sex, visceral fat area (VFA), and subcutaneous fat area (SFA) as obtained from computed tomography, blood pressure, and blood test results including BNP. Multiple linear regression analysi

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Li, Cheng, Bingxian Kang, Ting Zhang, et al. "High Visceral Fat Area Attenuated the Negative Association between High Body Mass Index and Sarcopenia in Community-Dwelling Older Chinese People." Healthcare 8, no. 4 (2020): 479. http://dx.doi.org/10.3390/healthcare8040479.

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The association between obesity and sarcopenia remains controversial. The present study was conducted to explore the associations among body mass index (BMI), visceral fat area (VFA), and sarcopenia in older people and analyze their potential mechanisms. This cross-sectional study included 861 community-dwelling older Chinese people from three regions of China. BMI, VFA, muscle mass, muscle strength, physical performance, body composition, and metabolic markers were measured. Muscle mass and muscle strength were positively correlated with BMI, but were negatively correlated with VFA. Simple ov

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Ozato, Saito, Yamaguchi, et al. "Association between Nutrients and Visceral Fat in Healthy Japanese Adults: A 2-Year Longitudinal Study Brief Title: Micronutrients Associated with Visceral Fat Accumulation." Nutrients 11, no. 11 (2019): 2698. http://dx.doi.org/10.3390/nu11112698.

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: High visceral fat area (VFA) is a stronger predictor of cardiovascular disease and overall mortality than body mass index or waist circumference. VFA may be decreased by proper dietary habits. Although previous epidemiologic studies demonstrated an association between nutritional components or foodstuffs and VFA, only the associations of a few nutrients, such as dietary fiber and calcium, are reported. We performed a comprehensive 2-year longitudinal study in more than 624 healthy people and analyzed 33 micronutrients to investigate nutrients that contribute to changes in visceral fat. Our a

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Ezebuiro, N. C. "Derivation of volatile fatty acids concentration-independent optimum trace elements configuration and elucidation of optimization kinetics of biomethanization processes." Nigerian Journal of Biotechnology 38, no. 1 (2021): 194–208. http://dx.doi.org/10.4314/njb.v38i1.22.

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Trace elements (TEs) requirements for improved volatile fatty acids (VFA) degradation during biomethanization depend on VFA concentration of a reactor and the temperature of the process. While temperature remains relatively constant, VFA concentrations change in the course of biomethanization and this implies that for efficient VFA degradation, different trace elements configurations (TEC) should be supplemented. While this is the most efficient approach, it is impractical and constitutes a challenge for the effective use of TEs in the optimization of biomethanization processes. To alleviate t

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Pandrangi, Vivek, Daniel Mandel, Norman Gellada, Cindy Kallman, Karen Zaghiyan, and Phillip Fleshner. "Abdominal Visceral Fat Area and Chronic Pouchitis after Ileal Pouch-Anal Anastomosis." American Surgeon 83, no. 10 (2017): 1029–32. http://dx.doi.org/10.1177/000313481708301003.

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Chronic pouchitis (CP) after ileal pouch-anal anastomosis is a significant clinical problem. Adipose tissues produce antiinflammatory cytokines and chemokines. We evaluated the association between abdominal visceral fat area (VFA) and CP. Patients with a preoperative CT evaluation were included. The diagnosis of CP was confirmed in all cases by endoscopy with afferent ileal limb intubation. Patients were allocated into groups of high VFA and low VFA. The study cohort of 52 patients had a median body mass index of 22 (range, 14–32). Indications for surgery were medically refractory disease in 4

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Yesil, H., A. E. Tugtas, A. Bayrakdar, and B. Calli. "Anaerobic fermentation of organic solid wastes: volatile fatty acid production and separation." Water Science and Technology 69, no. 10 (2014): 2132–38. http://dx.doi.org/10.2166/wst.2014.132.

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Anaerobic fermentation of organic municipal solid waste was investigated using a leach-bed reactor (LBR) to assess the volatile fatty acid (VFA) production efficiency. The leachate recycle rate in the LBR affected the VFA composition of the leachate. A six-fold increase in the recycle rate resulted in an increase of the acetic acid fraction of leachate from 24.7 to 43.0%. The separation of VFAs via leachate replacement resulted in higher total VFA production. VFA separation from synthetic VFA mix and leachate of a fermented organic waste was assessed via a counter-current flow polytetrafluoroe

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Jonker, Arjan, Sharon M. Hickey, John C. McEwan, et al. "Genetic parameters of plasma and ruminal volatile fatty acids in sheep fed alfalfa pellets and genetic correlations with enteric methane emissions1." Journal of Animal Science 97, no. 7 (2019): 2711–24. http://dx.doi.org/10.1093/jas/skz162.

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Abstract Animal-to-animal variation in methane (CH4) emissions determined in respiration chambers has a genetic basis, but rapid phenotyping methods that can be applied on-farm are required to enable increased genetic progress by the farming industry. Fermentation of carbohydrates in the rumen results in the formation of VFA with hydrogen (H2) as a byproduct that is used for CH4 formation. Generally, fermentation pathways leading to acetate are associated with the most H2 production, less H2 formation is associated with butyrate production, and propionate and valerate production are associated

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Ito, Ayako, Takao Ando, Aya Nozaki, Ai Haraguchi, Ichiro Horie, and Atsushi Kawakami. "VISCERAL AND SUBCUTANEOUS FAT INCREASED AFTER TREATMENT OF GRAVES DISEASE." Endocrine Practice 26, no. 5 (2020): 484–91. http://dx.doi.org/10.4158/ep-2019-0459.

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Objective: Patients with Graves disease (GD) tend to gain weight after treatment, but it remains unknown if weight gain is associated with an increase in the visceral and/or subcutaneous fat areas (VFA, SFA). Methods: We enrolled 25 newly diagnosed GD patients (22 females, median age 33.0 years) and studied their clinical parameters, and VFA and SFA measured by a dual bioelectric impedance analysis. We divided them into 2 groups based on the rates of change in the VFA and SFA, and we compared clinical parameters at the baseline between the groups to evaluate factors that influence increases in

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Robinson, D. L., J. Goopy, and R. S. Hegarty. "Can rumen methane production be predicted from volatile fatty acid concentrations?" Animal Production Science 50, no. 6 (2010): 630. http://dx.doi.org/10.1071/an09214.

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Rumen cannulated sheep (n = 12) were tested at each of three feeding levels: 0.8, 1.24 and 1.6 times maintenance. The ration (lucerne chaff) was provided in eight equal portions to emulate morning and afternoon grazing. After at least 10 days adaptation to each feeding level, methane production was measured in an open circuit calorimeter for 22 h using the same feeding regime. During measurement, 10 rumen samples were taken for volatile fatty acid (VFA) analysis by an indwelling rumen probe with a sampling tube that passed outside the calorimeter. Feed intake was strongly correlated with daily

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Srivichai, Piyavadee, Chumaporn Rodsrida, Nakit Chansamut, and Wirinya Mueangchang. "Study on the Potential Use of Modified Tapioca Starch Sludge Waste for Volatile Fatty Acid Generation." Trends in Sciences 19, no. 3 (2022): 2146. http://dx.doi.org/10.48048/tis.2022.2146.

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Starch sludge (SS) is a bulky main waste from modified tapioca starch production, a high potential substrate for alternative volatile fatty acids (VFA) production. Because it has relatively high organic content in SS is easy and fast to convert into VFA. However, there are limitations when fed overloading rate to anaerobic digestion (AD) system affecting the VFA production yield and system performance. This research aims to study the effect of initial feeding concentrations of SS between 0.5 and 2.5 % total volatile solids (TVS) on the VFA production efficiency by applying a batch continuously

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Huq, Nabila A., Glenn R. Hafenstine, Xiangchen Huo, et al. "Toward net-zero sustainable aviation fuel with wet waste–derived volatile fatty acids." Proceedings of the National Academy of Sciences 118, no. 13 (2021): e2023008118. http://dx.doi.org/10.1073/pnas.2023008118.

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With the increasing demand for net-zero sustainable aviation fuels (SAF), new conversion technologies are needed to process waste feedstocks and meet carbon reduction and cost targets. Wet waste is a low-cost, prevalent feedstock with the energy potential to displace over 20% of US jet fuel consumption; however, its complexity and high moisture typically relegates its use to methane production from anaerobic digestion. To overcome this, methanogenesis can be arrested during fermentation to instead produce C2 to C8 volatile fatty acids (VFA) for catalytic upgrading to SAF. Here, we evaluate the

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Tantaoui, H., K. Nassar, and S. Janani. "AB0620 MODIFICATION OF THE DECISION OF THE ANTI-OSTEOPOROSIS TREATMENT AFTER PERFORMING THE VFA." Annals of the Rheumatic Diseases 80, Suppl 1 (2021): 1344.2–1344. http://dx.doi.org/10.1136/annrheumdis-2021-eular.3318.

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Background:Spinal fractures are the most common of all osteoporotic fractures. Its diagnosis is essential, because the discovery of a vertebral fracture testifies the gravity of osteoporosis and modifies the therapeutic intervention threshold by justifying a specific anti-osteoporosis treatment. The evolution of densitometers now makes it possible to take a true X-ray image using software called “Vertebral Fracture Assessment” or VFA.Objectives:To assess the impact of VFA results on therapeutic decision-making after measuring bone mineral density.Methods:We conducted a retrospective and descri

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Song, Kyo Young, and Jung Ho Shim. "Clinical significance of obesity index (VFA versus BMI) as a risk factor for gastric cancer surgery." Journal of Clinical Oncology 30, no. 4_suppl (2012): 139. http://dx.doi.org/10.1200/jco.2012.30.4_suppl.139.

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139 Background: Obesity is considered as a major perioperative risk factor in various cancer surgeries. We aimed to elucidate the effect of two different obesity index, such as VFA (visceral fat area) and BMI (body mass index), on gastrectomy. Methods: From Mar 2009 to July 2010, 632 patients with diagnosed gastric carcinoma underwent curative gastrecomy at Seoul St. Mary’s hospital. We reviewed patients’ clinicopatholic data and collected 187 patients who had data including BMI, VFA and SFA. Patients with body mass index (BMI) ≥ 25 kg/m 2 were defined as obese and visceral fat area (VFA) ≥ 10

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Hikita, Kosuke, Naokazu Chiba, Masashi Nakagawa, et al. "Efficacy of Peak Hounsfield Units of the Visceral Fat Area in Predicting Postoperative Complications after Pancreaticoduodenectomy." Digestive Surgery 37, no. 4 (2020): 331–39. http://dx.doi.org/10.1159/000505060.

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Background: Morbidity following pancreaticoduodenectomy (PD) has been reported to remain high. This study sought to measure the peak Hounsfield units (HUs) of visceral attenuation in patients undergoing PD and to assess the quality of adipocytes by comparing these measurements with perioperative factors. Methods: Patients undergoing PD were retrospectively identified (n = 108). Abdominal perimeter, subcutaneous fat area (SFA), visceral fat area (VFA), and peak HU of the VFA were measured. Logistic regression analysis was used to identify independent predictors of postoperative pancreatic fistu

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Yamamoto, Yasunori, Akiyoshi Ishiyama, Ken Namikawa, et al. "RA08.02: RELATIONSHIP BETWEEN ABDOMINAL FAT DISTRIBUTION AND VASCULAR INVASION AMONG PATIENTS WITH EARLY ESOPHAGEAL SQUAMOUS CELL CARCINOMA." Diseases of the Esophagus 31, Supplement_1 (2018): 37. http://dx.doi.org/10.1093/dote/doy089.ra08.02.

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Abstract Background Excessive visceral fat might promote cancer development and progression because of metabolic disruption. A previous study has demonstrated that visceral obesity associated with lymphatic invasiveness and a poor response to preoperative treatment among patients who underwent esophagectomy for advanced esophageal squamous cell carcinoma (ESCC). This study aimed to clarify the impact of abdominal fat distribution on lymphatic and vessel invasion after endoscopic submucosal dissection (ESD) or esophagectomy for early ESCC (eESCC). Methods We enrolled the 106 patients who had un

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Мetelev, Alexander Sergeevich, Eduard S. Akayzin, and Alexander K. Gagua. "A comparative study of volatile fatty acids in the blood and in the drainage from pancreatic fistula in pancreatic necrosis." Journal of Experimental and Clinical Surgery 11, no. 4 (2018): 232–36. http://dx.doi.org/10.18499/2070-478x-2018-11-4-232-236.

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Relevance. The informative value of the content of volatile fatty acids (VFA) in the fistulous drainage from pancreas not been studied in the diagnosis of pancreonecrosis (PN). The informative value of the indices of the content of VFA in the blood has not been studied sufficiently in the diagnosis of PN. Aim of the study is to compare the content of VFA in the blood and in the fistulous drainage from pancreas in patients with pancreatic necrosis. Materials and methods. Samples of blood and fistulous drainage from pancreas isolated from patients with a confirmed diagnosis of PN wer

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Xie, Li, Hui Liu, Yin-guang Chen, and Qi Zhou. "pH-adjustment strategy for volatile fatty acid production from high-strength wastewater for biological nutrient removal." Water Science and Technology 69, no. 10 (2014): 2043–51. http://dx.doi.org/10.2166/wst.2014.120.

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Volatile fatty acid (VFA) production from three types of high-strength organic wastewater (cassava thin stillage, starch wastewater and yellow-wine processing wastewater) were compared. The results showed that cassava thin stillage was the most suitable substrate, based on its high specific VFA production (0.68 g chemical oxygen demand (COD)/g initial soluble chemical oxygen demand (SCOD)) and yield (0.72 g COD/g SCOD) as well as low nutrient content in the substrate and fermented liquid. The acid fermented cassava thin stillage was evaluated and compared with sodium acetate in a sequencing ba

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Bilgili, M. Sinan, Ahmet Demir, and Gamze Varank. "Effect of leachate recirculation and aeration on volatile fatty acid concentrations in aerobic and anaerobic landfill leachate." Waste Management & Research: The Journal for a Sustainable Circular Economy 30, no. 2 (2011): 161–70. http://dx.doi.org/10.1177/0734242x11417983.

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The main aim of this study was to investigate the effect of leachate recirculation and aeration on volatile fatty acid (VFA) concentrations in aerobic and anaerobic landfill leachate samples. In this study, two aerobic (A1, A2) and two anaerobic (AN1, AN2) reactors with (A1, AN1) and without (A2, AN2) leachate recirculation were used in order to determine the change of volatile fatty acids components in landfill leachate. VFA degradation rate was almost 100% in each reactor but the degradation rate show notable differences. In aerobic landfill reactors, total VFA concentrations decreased below

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Yin, Dong Min, Clarisse Uwineza, Tugba Sapmaz, et al. "Volatile Fatty Acids (VFA) Production and Recovery from Chicken Manure Using a High-Solid Anaerobic Membrane Bioreactor (AnMBR)." Membranes 12, no. 11 (2022): 1133. http://dx.doi.org/10.3390/membranes12111133.

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Acidogenic fermentation of chicken manure (CM) for production and recovery of volatile fatty acids (VFA) is an interesting biological waste-to-value approach compared to benchmark organic waste management strategies. Considering the wide range of high value applications of VFA, a semi-continuous immersed anaerobic membrane bioreactor (AnMBR) was applied to boost VFA productivity and yield, while reducing downstream processing stages assisting the recovery of VFA. In this regard, the effect of parameters such as pH and organic loading rates (OLR) on the overall bioconversion and filtration perf

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Prasetyo, Aris Budi, Baginda Iskandar Moeda Tampoebolon, and Limbang Kustiawan Nuswantara. "Kandungan Serat Kasar, Kecernaan Serat Kasar, dan Fermentabilitas Bonggol Singkong yang Difermentasi Menggunakan Aspergillus niger." Jurnal Agripet 22, no. 2 (2022): 204–12. http://dx.doi.org/10.17969/agripet.v22i2.24805.

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ABSTRACT. Tujuan penelitian ini adalah untuk mengkaji pengaruh aras konsentrasi Aspergillus niger dan lama waktu pemeraman yang berbeda terhadap kandungan serat kasar, kecernaan serat kasar, dan fermentabilitas bonggol singkong secara in vitro. Percobaan didesain menggunakan rancangan acak lengkap pola faktorial (RALF) 3x3 dengan 3 ulangan. Fermentasi menggunakan kapang Aspergillus niger dengan 3 aras konsentrasi (A0: 0%, A1: 2,5% dan A2: 5%) dan 3 lama pemeraman (T0: 0 hari, T1: 2 hari dan T2:4 hari). Variabel yang dikaji adalah kandungan serat kasar, kecernaan serat kasar, asam lemak terbang

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MAROUNEK, M., V. SKŘIVANOVÁ, and D. DUšKOVÁ. "In vitro caecal fermentation of nitrogenous substrates in rabbits." Journal of Agricultural Science 135, no. 4 (2000): 437–42. http://dx.doi.org/10.1017/s0021859699008345.

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Caecal contents of 3-month-old rabbits were analysed and used as inoculi of cultures supplied with plant proteins (gluten, gliadin, zein), mucin, casein, ribonucleic acid (RNA) and glucose. The caecal digesta contained dry matter, total N, protein, trichloroacetic acid (TCA)-soluble N and NH3-N at 234, 10·2, 42·6, 3·2 and 0·27 mg/g (on average), respectively. One g of the caecal digesta contained 180 μmol of glycine equivalents of amino acids in TCA-soluble fraction. Because ninhydrin reaction was almost three times greater after HCl hydrolysis, peptides rather than amino acids were the primar

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Hambakodu, Marselinus, Elvis Pati Ranja, and Made Adi Sudarma. "Nilai VFA dan NH3 Rumput Alam Padang Penggembalaan Kecamatan Haharu Kabupaten Sumba Timur." Jurnal Ilmu Peternakan Terapan 5, no. 1 (2021): 8–12. http://dx.doi.org/10.25047/jipt.v5i1.2588.

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This study aims to determine the value of volatile fatty acids (VFA) and ammonia (NH3) of natural grass in grazing fields in vitro. The study used a direct survey method in the field. Natural grass was tested in vitro using Bali cattle rumen fluid. The data obtained were analyzed using descriptive analysis based on the mean and standard deviation. Natural grass consisted of Heteropogon insignis, Bracharia decumbens, Bothriochloa ischaemum. The measurement of the value of VFA uses steam distillation, while the method of measuring the value of NH3 uses Conway micro diffusion. The results showed

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Trisnadewi, A. A. A. S., I. G. L. Oka Cakra, and T. G. B. Yadnya. "IN-VITRO DIGESTIBILITY, VOLLATYLE FATTY ACID, AND AMMONIA OF CORN STRAW SILAGE WITH DIFFERENT STORAGE PERIODE." Pastura 8, no. 1 (2019): 29. http://dx.doi.org/10.24843/pastura.2018.v08.i01.p07.

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The study aimed to determine invitro digestibility, volattyle fatty acid (VFA) and ammonia (NH3) of corn straw silage with different storage periode. The experiments use a completely randomized design (CRD) with four treatments and each treatment was repeated five times, so there are 20 experimental units. The fourth treatments are W1 = storage time of 14 days, W2 = storage time of 21 days, W3 = storage time of 28 days, and W4 = storage time of 35 days. The parameters observed in this study in-vitro digestibility including dry matter and organic matter digestibility, VFA, and NH3. Results of t

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Mina, M., P. Salpetier, L. Seidel, et al. "POS0504 COMPARISON BETWEEN « SYSTEMATIC » VERSUS « RECOMMENDATION-BASED » VERTEBRAL FRACTURE ASSESSMENT REALIZATION DURING DUAL ENERGY X-RAY ABSORPTIOMETRY EXAMINATION." Annals of the Rheumatic Diseases 82, Suppl 1 (2023): 514.1–514. http://dx.doi.org/10.1136/annrheumdis-2023-eular.1729.

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BackgroundRealization of a thoraco-lumbar lateral view X-ray (Vertebral Fracture Assessment, VFA) when performing Dual Energy X-ray Absorptiometry (DEXA) is proposed in international guidelines to detect asymptomatic vertebral fractures. However, there is no clear consensus regarding indications of its realization.ObjectivesFirst, we compared the efficiency of a systematic VFA realization during DEXA versus its realization according to different criteria available in literature. Second, we looked after risk factors associated with vertebral fractures.Methods401 successive patients underwent DE

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Okada, Kazuyuki, Tatsuto Nishigori, Kazutaka Obama, et al. "The Incidence of Postoperative Complications after Gastrectomy Increases in Proportion to the Amount of Preoperative Visceral Fat." Journal of Oncology 2019 (December 16, 2019): 1–9. http://dx.doi.org/10.1155/2019/8404383.

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Background. Visceral obesity is a risk factor for complications after gastrectomy in patients with gastric cancer. However, it is unclear whether postoperative complications decrease with preoperative reduction of visceral fat without the achievement of a nonobese state. This is because previous studies have performed categorical comparisons of obesity and nonobesity. The current study was performed to estimate the impact of the preoperative visceral fat area (VFA) as a continuous variable on postoperative complications after gastrectomy. Methods. Consecutive patients with gastric cancer who u

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Greene, Leanne, Deval Shah, Kate Laver, Kirrily Holton, Kisani Manuel, and Bogda Bajger. "Quality improvement initiative: implementing routine vertebral fracture assessments into an Australian Fracture Liaison Service." BMJ Open Quality 12, Suppl 2 (2023): e002303. http://dx.doi.org/10.1136/bmjoq-2023-002303.

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Osteoporosis is a global health concern and a major contributor to worldwide mortality rates. Vertebral fractures due to osteoporosis are common and often undetected. Since vertebral fractures are often missed, evidence and guidelines suggest that vertebral fracture assessment (VFA) may optimise current approaches to bone density tests. We aimed to integrate VFA into an Australian Fracture Liaison Service (FLS) and measure the impact it had on osteoporosis treatment initiation.A retrospective case note review was undertaken to determine the number of clinic patients receiving VFA before the ch

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Abegg, Richard, Richard Eicher, Jan Lis, Christoph J. Lischer, Günter Scholtysik, and Adrian Steiner. "Concentration of volatile fatty acids in digesta samples obtained from healthy cows and cows with cecal dilatation or dislocation." American Journal of Veterinary Research 60, no. 12 (1999): 1540–45. http://dx.doi.org/10.2460/ajvr.1999.60.12.1540.

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Abstract Objective To compare concentrations of acetic, propionic, butyric, and i- and n-valerianic acids in digesta samples obtained from the rumen, cecum, proximal loop of the ascending colon (PLAC), and rectum of healthy cows and cows with cecal dilatation or dislocation (CDD). Animals 20 cows with CDD and 20 healthy cows. Procedure Samples were collected from all sites during surgical correction of CDD and also from the rectum 1, 2, and 3 days after surgery (group CDD). Samples from healthy (control) cows, matched on the basis of diet and milk yield, were obtained at a slaughterhouse. Conc

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Krystallidou, E., F. L. Mould, E. Owen, and E. A. Butler. "Variation in gas release profiles in vitro as influenced by volatile fatty acid composition and rate of addition to two standard incubation media." Proceedings of the British Society of Animal Science 2002 (2002): 167. http://dx.doi.org/10.1017/s1752756200008231.

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In vitro gas systems characterise substrate degradation by estimating fermentation gas release over time. However, as this offers little information regarding feedstuff utilisation, the extent of organic matter degradation (OMD) must be measured to provide an estimate of the metabolizable end-products (VFA and microbial protein) produced. Systems where capacity is limited use either an incubation end-point derived partitioning factor (PF) to estimate degradation from gas or attempt to model OMD stoichiometrically from VFA analyses or assumed gas / VFA relationships. These estimates contain num

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Rizqiana, Sista, and Akas Jalu Wicaksono. "Pengaruh Pakan Campuran Onggok dengan Berbagai Isi Rumen Terhadap Konsentrasi NH3 Dan VFA Total Secara In Vitro." Jurnal Sains dan Teknologi Industri Peternakan 5, no. 1 (2025): 73–76. https://doi.org/10.55678/jstip.v5i1.1452.

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Penelitian bertujuan untuk mengetahui pengaruh dari pemberian pakan campuran onggok dengan berbagai isi rumen terhadap konsentrasi NH3 dan VFA total di dalam rumen. Materi penelitian menggunakan onggok, rumput gajah, isi rumen sapi, isi rumen kambing dan isi rumen domba. Metode penelitian yang digunakan adalah metode eksperimen dengan Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 5 kali ulangan. Peubah yang diukur adalah konsentrasi NH3 dan VFA total. Perlakuan terdiri dari onggok 40% + rumput gajah 60% (R0), onggok 40% + isi rumen sapi 60% (R1), onggok 40% + isi rumen kambing 60% (R2) d

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Ren, Jianjun, Xilong Xia, Honggang Mao, et al. "Enhanced Erythromycin Elimination from Erythromycin Fermentation Residue via Anaerobic Volatile Fatty Acid Production Under Mesophilic Conditions." Fermentation 11, no. 6 (2025): 320. https://doi.org/10.3390/fermentation11060320.

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Erythromycin fermentation residue (EFR) is difficult to dispose of due to its high content of macrolide erythromycin. An alternative economic method was proposed in this study for erythromycin elimination in EFR through volatile fatty acid (VFA) production via an anaerobic digestion process. Different parameters were applied to evaluate the effects on energy recovery of VFA together with erythromycin elimination from EFR through batch assays under mesophilic conditions. Results demonstrated that anaerobic digestion technology for VFA production can significantly enhance erythromycin eliminatio

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