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Journal articles on the topic 'Lithogenic'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Chen, Geng, and Shuodong Wu. "Role of Baicalin and Liver X Receptor Alpha in the Formation of Cholesterol Gallstones in Mice." Gastroenterology Research and Practice 2020 (April 21, 2020): 1–13. http://dx.doi.org/10.1155/2020/1343969.

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This study was aimed at investigating the effect of baicalin on experimental cholesterol gallstones in mice. The mouse gallstone model was induced by feeding with a lithogenic diet, and cholesterol stones were found in the gallbladder. The lithogenic diet caused elevation of triglycerides, cholesterol, and low-density lipoprotein concentrations and descent of high-density lipoprotein concentration in serum. Hyperplasia and inflammatory infiltration were observed in the gallbladder wall of lithogenic diet-fed mice. We also found the increase of cholesterol content and the decrease of bile acid

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2

Báez-Hernández, Maite, Noemí García, Inmaculada Menéndez, et al. "Interaction of sinking behaviour of Saharan dust and lithogenic and biogenic fluxes in the Canary Basin." Scientia Marina 83, no. 2 (2019): 121. http://dx.doi.org/10.3989/scimar.04877.19a.

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Saharan dust events are currently the predominant source of lithogenic particles in the Canary Basin. In order to quantify this input and its relationship with the biogenic fluxes, a sediment trap was deployed in a free-drifting system at 150 m depth, 50 km off the north coast of Gran Canaria (Canary Islands). The mineralogy of the lithogenic particles included illite, calcite, hematite quartz, barite and kaolinite. The biogenic matter was composed of chitin, transparent exopolymer particles, and carbonates from foraminifera and gastropod shells. The average Saharan dust flux over the ocean su

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3

Ufimtsev, G. F. "LITHOGENIC STEPS OF PLANATION." Geomorphology RAS, no. 3 (July 8, 2015): 7. http://dx.doi.org/10.15356/0435-4281-2009-3-7-14.

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4

Blyth, Bruce, David H. Ewalt, John W. Duckett, and Howard M. Snyder. "Lithogenic Properties of Enterocystoplasty." Journal of Urology 148, no. 2 Part 2 (1992): 575–77. http://dx.doi.org/10.1016/s0022-5347(17)36657-0.

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5

Andreev, R. A., L. V. Shasherina, E. A. Konstantinov, and O. I. Manakova. "Holocene geochemical record of Lake Kasplya (Smolensk oblast, Russia) bottom sediments and its interpretation." Limnology and Freshwater Biology, no. 4 (2024): 251–55. http://dx.doi.org/10.31951/2658-3518-2024-a-4-251.

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This research focuses on the reconstruction of Lake Kasplya (Smolensk oblast) history in Holocene based on the interpretation of the bulk inorganic and organic geochemistry records. We derived bulk inorganic geochemistry for the lake bottom sediment record using X-ray fluorescence and conducted a principal component analysis (PCA) using geochemistry and lithogenic data. Based on PCA, we obtained a three-component model, which describes 73% of the variance. Each component represents a factor that contributes to the geochemical and lithogenic records: lithogenic, chemically altered matter, and o

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Bressac, M., C. Guieu, D. Doxaran, et al. "Quantification of the lithogenic carbon pump following a dust deposition event." Biogeosciences Discussions 10, no. 8 (2013): 13639–77. http://dx.doi.org/10.5194/bgd-10-13639-2013.

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Abstract. Lithogenic particles, such as desert dust, have been postulated to influence particulate organic carbon (POC) export to the deep ocean by acting as mineral ballasts. However, an accurate understanding and quantification of the POC-dust association that occurs within the upper ocean is required in order to affine the "ballast hypothesis". In the framework of the DUNE project, two artificial seedings were performed seven days apart within large mesocosms. A suite of optical and biogeochemical measurements were used to quantify surface POC export following simulated dust events within a

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7

Winton, V. H. L., G. B. Dunbar, C. B. Atkins, et al. "The origin of lithogenic sediment in the south-western Ross Sea and implications for iron fertilization." Antarctic Science 28, no. 4 (2016): 250–60. http://dx.doi.org/10.1017/s095410201600002x.

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AbstractSummer iron (Fe) fertilization in the Ross Sea has previously been observed in association with diatom productivity, lithogenic particles and excess Fe in the water column. This productivity event occurred during an early breakout of sea ice via katabatic winds, suggesting that aeolian dust could be an important source of lithogenic Fe required for diatom growth in the Ross Sea. Here we investigate the provenance of size-selected dust deposited on sea ice in McMurdo Sound, south-western (SW) Ross Sea. The isotopic signature of McMurdo Sound dust (0.70533<87Sr/86Sr<0.70915 and -1.

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8

Raghavendra, Chikkanna K., and Krihnapura Srinivasan. "Anti-cholelithogenic effect of dietary tender cluster beans (Cyamopsis tetragonoloba) on the formation of cholesterol gallstones in mice." Applied Physiology, Nutrition, and Metabolism 39, no. 2 (2014): 152–57. http://dx.doi.org/10.1139/apnm-2013-0176.

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Providing a lithogenic diet that contains 0.5% cholesterol to experimental mice for 10 weeks resulted in cholesterol supersaturation in gallbladder bile, which induced the formation of cholesterol gallstones. In this study, to evaluate the anti-cholelithogenic potential of dietary tender cluster bean, a freeze-dried powder of the test legume was included in the lithogenic diet at 5%, 10%, and 15%. Dietary cluster beans reduced the cholesterol gallstone incidence by 43%, 46%, and 58% at the respective doses. Dietary cluster beans markedly reduced biliary cholesterol and, hence, the cholesterol

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9

Rixen, Tim, Birgit Gaye, Kay-Christian Emeis, and Venkitasubramani Ramaswamy. "The ballast effect of lithogenic matter and its influences on the carbon fluxes in the Indian Ocean." Biogeosciences 16, no. 2 (2019): 485–503. http://dx.doi.org/10.5194/bg-16-485-2019.

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Abstract. Data obtained from long-term sediment trap experiments in the Indian Ocean in conjunction with satellite observations illustrate the influence of primary production and the ballast effect on organic carbon flux into the deep sea. They suggest that primary production is the main control on the spatial variability of organic carbon fluxes at most of our study sites in the Indian Ocean, except at sites influenced by river discharges. At these sites the spatial variability of organic carbon flux is influenced by lithogenic matter content. To quantify the impact of lithogenic matter on th

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10

Bressac, M., C. Guieu, D. Doxaran, et al. "Quantification of the lithogenic carbon pump following a simulated dust-deposition event in large mesocosms." Biogeosciences 11, no. 4 (2014): 1007–20. http://dx.doi.org/10.5194/bg-11-1007-2014.

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Abstract. Lithogenic particles, such as desert dust, have been postulated to influence particulate organic carbon (POC) export to the deep ocean by acting as mineral ballasts. However, an accurate understanding and quantification of the POC–dust association that occurs within the upper ocean is required in order to refine the "ballast hypothesis". In the framework of the DUNE (a DUst experiment in a low-Nutrient, low-chlorophyll Ecosystem) project, two artificial seedings were performed seven days apart within large mesocosms. A suite of optical and biogeochemical measurements were used to qua

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11

Cao, Chenyang, Chi Chen, Pu Zhang, et al. "Using Long-Lived Thorium Isotopes to Quantify the Lithogenic Inputs to the Lakes in Qaidam Basin, China." Minerals 12, no. 8 (2022): 931. http://dx.doi.org/10.3390/min12080931.

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In the last decade, the 232Th–230Th system has gained popularity as a tracer to quantify lithogenic sources of trace elements to the marine environment. Thorium (Th) isotopes were utilized to quantify the supply of lithogenic inputs to Keluke Lake and Tuosu Lake in Qaidam Basin, China. A total of 33 water samples were collected from Keluke Lake, Tuosu Lake, and Bayin River to measure the concentrations of dissolved 232Th and 230Th. The relationship of 232Th concentration in the water was in the order Bayin River > Keluke Lake > KLK–TS River > Tuosu Lake, confirming the input of variab

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12

Gui, Bao-Song, Rong Xie, Xiu-Qiong Yao, Mei-Ru Li, and Jian-Ming Ouyang. "Composition and Morphology of Nanocrystals in Urines of Lithogenic Patients and Healthy Persons." Bioinorganic Chemistry and Applications 2009 (2009): 1–7. http://dx.doi.org/10.1155/2009/925297.

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The composition and morphology of nanocrystals in urines of healthy persons and lithogenic patients were comparatively investigated by means of X-ray diffraction (XRD) and transmission electron microscopy (TEM). It was shown that the main composition of urinary nanocrystals in healthy persons were calcium oxalate dihydrate (COD), uric acid, and ammonium magnesium phosphate (struvite). However, the main compositions of urinary nanocrystals in lithogenic patients were struvite,β-tricalcium phosphate, uric acid, COD, and calcium oxalate monohydrate (COM). According to the XRD data, the size of na

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13

Kube, Irina, Manuela Kowalczyk, Ute Hofmann, et al. "Hepatobiliary Thyroid Hormone Deficiency Impacts Bile Acid Hydrophilicity and Aquaporins in Cholestatic C57BL/6J Mice." International Journal of Molecular Sciences 23, no. 20 (2022): 12355. http://dx.doi.org/10.3390/ijms232012355.

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Women are more prone to develop either hypothyroidism or cholesterol gallstones than men. However, a male predominance in cholesterol gallstones under hypothyroidism was reported. Recently, a novel pathogenic link between thyroid hormone (TH) deficiency and cholesterol gallstones has been described in male mice. Here, we investigate if TH deficiency impacts cholesterol gallstone formation in females by the same mechanism. Three-month-old C57BL/6J mice were randomly divided into a control, a TH deficient, a lithogenic, and a lithogenic + TH deficient group and diet-treated for two, four, and si

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14

Maurer, Kirk J., Arlin B. Rogers, Zhongming Ge, Ashley J. Wiese, Martin C. Carey, and James G. Fox. "Helicobacter pyloriand cholesterol gallstone formation in C57L/J mice: a prospective study." American Journal of Physiology-Gastrointestinal and Liver Physiology 290, no. 1 (2006): G175—G182. http://dx.doi.org/10.1152/ajpgi.00272.2005.

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Recently, we demonstrated that cholesterol gallstone-prone C57L/J mice rarely develop gallstones unless they are infected with certain cholelithogenic enterohepatic Helicobacter species. Because the common gastric pathogen H. pylori has been identified in the hepatobiliary tree of cholesterol gallstone patients, we wanted to ascertain if H. pylori is cholelithogenic, by prospectively studying C57L infected mice fed a lithogenic diet. Weanling, Helicobacter spp.-free male C57L mice were either infected with H. pylori SS1 or sham dosed. Mice were then fed a lithogenic diet (1.0% cholesterol, 0.5

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15

Hird, Claudia, Morgane M. G. Perron, Thomas M. Holmes, et al. "On the use of lithogenic tracer measurements in aerosols to constrain dust deposition fluxes to the ocean southeast of Australia." Aerosol Research 2, no. 2 (2024): 315–27. https://doi.org/10.5194/ar-2-315-2024.

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Abstract. Australia contributes a significant amount of dust-borne nutrients (including iron) to the Southern Ocean, which can stimulate marine primary productivity. A quantitative assessment of the variability in dust fluxes from Australia to the surrounding ocean is therefore important for investigating the impact of atmospheric deposition on the Southern Ocean's carbon cycle. In this study, lithogenic trace metals (aluminium, iron, thorium, and titanium) contained in aerosols collected between 2016 and 2021 from kunanyi / Mount Wellington in lutruwita / Tasmania (Australia) were used to est

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16

Ternon, E., C. Guieu, M. D. Loÿe-Pilot, et al. "The impact of Saharan dust on the particulate export in the water column of the North Western Mediterranean Sea." Biogeosciences 7, no. 3 (2010): 809–26. http://dx.doi.org/10.5194/bg-7-809-2010.

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Abstract. Simultaneous measurements of atmospheric deposition and of sinking particles at 200 and 1000 m depth, were performed in the Ligurian Sea (North-Western Mediterranean) between 2003 and 2007, along with phytoplanktonic activity derived from satellite images. Atmospheric deposition of Saharan dust particles was very irregular and confirmed the importance of sporadic high magnitude events over the annual average (11.4 g m−2 yr−1 for the 4 years). The average marine total mass flux was 31 g m−2 yr−1, the larger fraction being the lithogenic one (~37%). The marine total mass flux displayed

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17

Anderson, Robert F., Stephen Barker, Martin Fleisher, et al. "Biological response to millennial variability of dust and nutrient supply in the Subantarctic South Atlantic Ocean." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372, no. 2019 (2014): 20130054. http://dx.doi.org/10.1098/rsta.2013.0054.

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Fluxes of lithogenic material and fluxes of three palaeo-productivity proxies (organic carbon, biogenic opal and alkenones) over the past 100 000 years were determined using the 230 Th-normalization method in three sediment cores from the Subantarctic South Atlantic Ocean. Features in the lithogenic flux record of each core correspond to similar features in the record of dust deposition in the EPICA Dome C ice core. Biogenic fluxes correlate with lithogenic fluxes in each sediment core. Our preferred interpretation is that South American dust, most probably from Patagonia, constitutes a major

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18

Lewandowski, Sonja, and Allen L. Rodgers. "Renal response to lithogenic and anti-lithogenic supplement challenges in a stone-free population group." Journal of Renal Nutrition 14, no. 3 (2004): 170–79. http://dx.doi.org/10.1053/j.jrn.2004.04.007.

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19

Юрага, Т. М., Н. А. Гресь, В. С. Камышников, and Т. С. Кухта. "Reference Values of Lithogenic Substances in Morning Urine Portion Normalized to Urine Creatinine Levels." Лабораторная диагностика. Восточная Европа, no. 4 (December 1, 2022): 506–11. http://dx.doi.org/10.34883/pi.2022.11.4.010.

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Введение. Исследование в разовой порции мочи экскреции камнеобразующих метаболитов и их нормализация относительно креатинина мочи, нивелируя влияние внешнесредовых факторов (питание, физическая активность, нарушение водного режима и др.), повышает возможность оценки истинной степени литогенного воздействия. Будучи альтернативой/дополнением определению литогенных субстанций в суточной моче, данный методологический подход может быть к тому же рекомендован для осуществления экспресс-анализа метастабильности мочи. Цель. Разработать референсные значения показателей содержания литогенных субстанций

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20

Sidorov, I. G., O. N. Miroshnichenko, V. Yu Poskurnin, and A. A. Paraskiv. "Differentiated Estimation of the 137Cs Content on the Biogenic and Lithogenic Suspended Matter in the Black Sea." Геохимия 68, no. 6 (2023): 629–37. http://dx.doi.org/10.31857/s001675252304012x.

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Sedimentation transport of 137Cs can lead to the significant accumulation of this radionuclide at depths that could not be reached through the vertical water exchange alone; therefore, a comparative assessment of its contents for different types of suspended matter (SM) and regions of the Black Sea is of particular interest. For this purpose, we have collected samples of SM and seawater at deep-water and coastal stations for the subsequent determination of the 137Cs activity in the surface water layer. To calculate the fraction of lithogenic matter, the potassium content in the SM was addition

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21

Ozben, T. "Biliary lipid composition and gallstone formation in rabbits fed on soy protein, cholesterol, casein and modified casein." Biochemical Journal 263, no. 1 (1989): 293–96. http://dx.doi.org/10.1042/bj2630293.

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In four experimental groups, rabbits were fed on diets containing soy beans, soy beans plus cholesterol (1%, w/w), casein and modified casein for 8 weeks. Biliary lipid levels, lithogenic-index values and the rate of gallstone formation were determined. The highest mean relative concentrations (mol%) of cholesterol and phospholipid were found in the soy bean + cholesterol group, and the highest mean relative bile acid concentration was in the soy bean group. The lowest mean relative cholesterol and phospholipid values were found in the soy bean and modified casein groups respectively. The lowe

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22

Chrysakopoulou, Chrysoula, Dimitrios Vogiatzis, Alexandros Drakoulis, Lambrini Papadopoulou, and Nikolaos Kantiranis. "Morphological characteristics of magnetic particles and their environmental impact: The case of Sarigiol basin (Greece)." E3S Web of Conferences 436 (2023): 08007. http://dx.doi.org/10.1051/e3sconf/202343608007.

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Magnetic particles were separated from soil and sediment samples from the Sarigiol basin in northwestern Greece in order to study their morphological characteristics with scanning electron microscopy. They appear in the form of octahedrons and spheres and they have lithogenic and anthropogenic source, respectively. The source of the lithogenic magnetic particles is the ophiolite complexes at the NE and SW part of the basin while the fly ash and its dispersion from the two power plants located in the research area is the source of the anthropogenic magnetic particles. The surface structure of m

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23

Tharp, Kevin M., Amin Khalifeh-Soltani, Hyo Min Park, et al. "Prevention of gallbladder hypomotility via FATP2 inhibition protects from lithogenic diet-induced cholelithiasis." American Journal of Physiology-Gastrointestinal and Liver Physiology 310, no. 10 (2016): G855—G864. http://dx.doi.org/10.1152/ajpgi.00316.2015.

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Gallstone disease is a widespread disorder costing billions for annual treatment in the United States. The primary mechanisms underlying gallstone formation are biliary cholesterol supersaturation and gallbladder hypomotility. The relative contribution of these two processes has been difficult to dissect, as experimental lithogenic diets cause both bile supersaturation and alterations in gallbladder motility. Importantly, there is no mechanistic explanation for obesity as a major risk factor for cholelithiasis. We discovered that lithogenic diets induce ectopic triacylglycerol (TAG) accumulati

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Wu, Michele K., and David E. Cohen. "Altered hepatic cholesterol metabolism compensates for disruption of phosphatidylcholine transfer protein in mice." American Journal of Physiology-Gastrointestinal and Liver Physiology 289, no. 3 (2005): G456—G461. http://dx.doi.org/10.1152/ajpgi.00107.2005.

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Phosphatidylcholine transfer protein (PC-TP) is a member of the steroidogenic acute regulatory transfer protein-related domain superfamily and is enriched in liver. To explore a role for PC-TP in hepatic cholesterol metabolism, Pctp −/− and wild-type C57BL/6J mice were fed a standard chow diet or a high-fat, high-cholesterol lithogenic diet. In chow-fed Pctp−/− mice, acyl CoA:cholesterol acyltransferase (Acat) activity was markedly increased, 3-hydroxy-3-methylglutaryl-CoA reductase activity was unchanged, and cholesterol 7α-hydroxylase activity was reduced. Consistent with increased Acat acti

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25

Alfimov, A. E., D. Y. Alekseeva, D. O. Korolev, D. M. Gorinova, M. E. Yenikeev, and L. M. Rapoport. "Clinical Applications of the Markers of Lithogenic Activity in Kidney Stone Disease." Andrology and Genital Surgery 25, no. 1 (2024): 24–30. http://dx.doi.org/10.62968/2070-9781-2024-25-1-24-30.

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Markers of lithogenic activity (MLA) – are the lab or instrumental tests, indicating the intensity of stone-forming pathologic process. We have described six groups of such markers in our previous review. Here we review the various clinical applications of these diagnostic tests mentioned by their authors. We emphasize the importance of the following MLA clinical applications: 1) revealing the periods of high lithogenic activity, 2) control of metaphylaxis efficacy. As long as these clinical applications require regular and sometimes frequent testing, the tests need to be adopted for the home

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Jordanova, Neli, and Diana Jordanova. "Thermomagnetic analysis applied for identification of lithogenic and pedogenic iron oxides in topsoils from Bulgaria." GeoStudies 1 (May 21, 2024): 27–42. https://doi.org/10.3897/geostudies.1.e115530.

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Identification of magnetic minerals, which determine the magnetic properties of natural rocks, sediments and soils, is of crucial importance for any further interpretation of their magnetic signature in environmental or paleogeographical context. One of the major and widely used methods for determination of kind of magnetic phases in natural materials is by obtaining the Curie/Neel temperature of the respective magnetic mineral. In this contribution, we report a set of thermomagnetic measurements of high-temperature behavior of magnetic susceptibility for topsoils from the territory of Bulgari

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27

Sun, Lin Hua. "Statistical Analysis of Heavy Metals in Bottom Sediments from the Tuo River in Suzhou City, China and its Implications for Source Identification." Advanced Materials Research 518-523 (May 2012): 1621–24. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.1621.

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Heavy metal (Zn, V, Cr, Co, Cu and Pb) concentrations in bottom sediments from Tuo River in Suzhou City have been analyzed for determing their average levels and distribution concentrations, and statistical analysis (correlation, cluster and principle component) have been taken place for evaluating their lithogenic and/or anthropogenic sources. The results imply that the concentration of metals following the order Co>Zn>V>Cr>Cu>Pb with homogeneous distribution. The lithogenic metals (V, Cr and Co) are enriched out of the city, whereas the anthropogenic (industry and vehicle rela

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28

Bronguleyev, V. Vad. "KINEMATIC MODELLING OF THE LITHOGENIC FORMS DEVELOPMENT." Geomorphology RAS, no. 2 (March 6, 2015): 3. http://dx.doi.org/10.15356/0435-4281-2014-2-.

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29

Figueiredo, P., C. Outerelo, T. Meira, F. Teixeira-Costa, A. Vieira, and J. Freitas. "P194 Lithogenic factors in inflammatory bowel disease." Journal of Crohn's and Colitis 8 (February 2014): S143. http://dx.doi.org/10.1016/s1873-9946(14)60315-9.

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30

Loginov, A. S., S. M. Chebanov, Yu Kh Marakhovskii, and I. I. Goncharik. "Microstructure of vesicular agglomerates of lithogenic bile." Bulletin of Experimental Biology and Medicine 108, no. 2 (1989): 1205–8. http://dx.doi.org/10.1007/bf00840678.

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Lagarde, Marion, Nolwenn Lemaitre, Hélène Planquette, et al. "Particulate rare earth element behavior in the North Atlantic (GEOVIDE cruise)." Biogeosciences 17, no. 22 (2020): 5539–61. http://dx.doi.org/10.5194/bg-17-5539-2020.

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Abstract. Particulate concentrations of the 14 Rare Earth Elements (PREE), yttrium, and 232-thorium were measured in 200 samples collected in the epipelagic (ca. 0–200 m) and mesopelagic (ca. 200–1500 m) zones of the North Atlantic during the GEOVIDE cruise (May/June 2014, R/V Pourquoi Pas?, GEOTRACES GA01), providing the most detailed snapshot of the PREE distribution in the North Atlantic so far. Concentrations of particulate cerium (PCe) varied between 0.2 and 16 pmol L−1, while particulate neodymium (PNd) concentrations ranged between 0.1 and 6.1 pmol L−1. Particulate ytterbium (PYb) conce

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MÜLLER, Oliver, Carmen SCHALLA, Jürgen SCHEIBNER, Eduard F. STANGE, and Michael FUCHS. "Expression of liver plasma membrane transporters in gallstone-susceptible and gallstone-resistant mice." Biochemical Journal 361, no. 3 (2002): 673–79. http://dx.doi.org/10.1042/bj3610673.

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We tested the hypothesis that differential expression of liver plasma membrane transporters might account for variations in biliary lipid secretion rates between gallstone-susceptible C57L/J and gallstone-resistant AKR/J mice. Plasma membrane fractions and total RNA isolated from livers of mice fed with a control or lithogenic (15% fat/1.25% cholesterol/0.5% cholic acid) diet were used for measurements of steady-state gene expression of hepatobiliary transport systems for bile salts (Ntcp1/Slc10a1, Oatp1/Slc21a1 and Bsep/Abcb11), phospholipids (Mdr2/Abcb4), organic anions (Mrp2/Abcc2) and orga

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Reddy, R. L. R., and K. Srinivasan. "Fenugreek seeds reduce atherogenic diet-induced cholesterol gallstone formation in experimental mice." Canadian Journal of Physiology and Pharmacology 87, no. 11 (2009): 933–43. http://dx.doi.org/10.1139/y09-084.

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Dietary hypocholesterolemic adjuncts may have a beneficial role in the prevention and treatment of cholesterol gallstones (CGS). In this investigation, fenugreek (Trigonella foenum-graecum) seed was evaluated for this potential on the experimental induction of CGS in laboratory mice. CGS was induced by maintaining mice on a lithogenic diet (0.5% cholesterol) for 10 weeks. Fenugreek seed powder was included at 5%, 10%, and 15% of this lithogenic diet. Dietary fenugreek significantly lowered the incidence of CGS in these mice; the incidence was 63%, 40%, and 10% in the 5%, 10%, and 15% fenugreek

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Meng, Yong, Ke Meng, Xin Zhao, et al. "Protective Effects of Yinchenhao Decoction on Cholesterol Gallstone in Mice Fed a Lithogenic Diet by Regulating LXR, CYP7A1, CYP7B1, and HMGCR Pathways." Evidence-Based Complementary and Alternative Medicine 2018 (September 17, 2018): 1–9. http://dx.doi.org/10.1155/2018/8134918.

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The study attempted to elucidate whether lipid genes are closely associated with lipid metabolic abnormalities during the lithogenic time and how Yinchenhao Decoction (YCHD) works on the transcriptions of lipid genes against cholesterol gallstone model. C57BL/6J mice fed on lithogenic diet (LD) were used for model establishment and randomized into 5 groups. All groups received LD for different weeks with isometrically intragastric administration of YCHD or NS. Biochemical tests were measured and liver tissues were harvested for histological and genetic detection. It was found that all groups w

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SHIM, JEONGHEE, MYUNG WOO HAN, YOUNG CHUL KANG, and DONGSEON KIM. "Biogeochemical cycle of organic matter in a subtidal benthic environment in Marian Cove, King George Island, Antarctica." Antarctic Science 17, no. 2 (2005): 193–204. http://dx.doi.org/10.1017/s0954102005002592.

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The flux and composition of settling particles were measured in a subtidal benthic environment of Marian Cove, King George Island, from February 1998–January 2000. The total mass flux ranged between 2.47 g m−2 d−1 (August and September 1998) and 21.97 g m−2 d−1 (February 1999), and showed distinct seasonal variation: high in the summer and low in winter. Lithogenic particles constituted 70–95% of the total particles, while biogenic particles represented only 10%, except in spring when biogenic particles made up more than 30%. The fluxes of organic carbon, biogenic silica, nitrogen, and organic

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36

Jordanova, Neli, and Diana Jordanova. "Thermomagnetic analysis applied for identification of lithogenic and pedogenic iron oxides in topsoils from Bulgaria." GeoStudies 1 (May 21, 2024): 27–42. http://dx.doi.org/10.3897/geostudies.1.e115530.

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Identification of magnetic minerals, which determine the magnetic properties of natural rocks, sediments and soils, is of crucial importance for any further interpretation of their magnetic signature in environmental or paleogeographical context. One of the major and widely used methods for determination of kind of magnetic phases in natural materials is by obtaining the Curie/Neel temperature of the respective magnetic mineral. In this contribution, we report a set of thermomagnetic measurements of high-temperature behavior of magnetic susceptibility for topsoils from the territory of Bulgari

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Pavlović, Pavle, Thomas Sawidis, Jürgen Breuste, et al. "Fractionation of Potentially Toxic Elements (PTEs) in Urban Soils from Salzburg, Thessaloniki and Belgrade: An Insight into Source Identification and Human Health Risk Assessment." International Journal of Environmental Research and Public Health 18, no. 11 (2021): 6014. http://dx.doi.org/10.3390/ijerph18116014.

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Concentrations of potentially toxic elements (PTEs) (Al, As, Cd, Cr, Cu, Ni, Pb, and Zn) were measured in topsoil samples collected from parks in the cities of Salzburg (Austria), Thessaloniki (Greece), and Belgrade (Serbia) in order to assess the distribution of PTEs in the urban environment, discriminate natural (lithogenic) and anthropogenic contributions, identify possible sources of pollution, and compare levels of pollution between the cities. An assessment of the health risks caused by exposure to PTEs through different pathways was also conducted. The study revealed that, with the exce

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Ternon, E., C. Guieu, M. D. Loÿe-Pilot, et al. "The impact of Saharan dust on the particulate export in the water column of the North Western Mediterranean Sea." Biogeosciences Discussions 6, no. 6 (2009): 10737–73. http://dx.doi.org/10.5194/bgd-6-10737-2009.

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Abstract. Simultaneous measurements of atmospheric deposition and of sinking particles at 200 m depth, were performed in the Ligurian Sea (North-Western Mediterranean) between 2003 and 2007 along with the historical time records of phytoplanktonic activity from satellite images. Atmospheric deposition of Saharan dust particles was very irregular and confirmed the importance of sporadic high magnitude events over the annual average (11.4 g m−2 yr−1 for the 4 yr). The average marine total mass flux was 31 g m−2 yr−1, the larger fraction being the lithogenic one (~37%). The marine total mass flux

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Sedwick, P. N., P. T. Harris, L. G. Robertson, G. M. Mcmurtry, M. D. Cremer, and P. Robinson. "A geochemical study of marine sediments from the Mac. Robertson shelf, East Antarctica: initial results and palaeoenvironmental implications." Annals of Glaciology 27 (1998): 268–74. http://dx.doi.org/10.3189/1998aog27-1-268-274.

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Sediments from the Antarctic continental margin may provide detailed palaeoenvironmental records for Antarctic shelf waters during the late Quaternary. Here we present results from a palaeoenvironmental study of two sediment cores recovered from the continental shelf off Mac. Robertson Land, East Antarctica. These gravity cores were collected approximately 90 km apart from locations on the inner and outer shelf. Both cores are apparently undisturbed sequences of diatom ooze mixed with fine, quartz-rich sand. Core stratigraphies have been established from radiocarbon analyses of bulk organic ca

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Li, Weiying, Jingjing Zhang, Hongliang Li, et al. "Different Source Contributions of Bioactive Trace Metals in Sinking Particles in the Northern South China Sea." Journal of Marine Science and Engineering 11, no. 11 (2023): 2125. http://dx.doi.org/10.3390/jmse11112125.

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Time-series samples intercepted via three synchronized moored sediment traps, deployed at 1000 m, 2150 m, and 3200 m in the northern South China Sea (NSCS) during June 2009–May 2010, were analyzed to quantify the bioactive trace metal fluxes in sinking particles and investigate their different source contributions. Iron (Fe) primarily originated from lithogenic sources. Manganese (Mn), cobalt (Co), nickel (Ni), copper (Cu), and zinc (Zn) exhibited various degrees of enrichment over their continental crustal ratios. Since the sources of bioactive trace metals in sinking particles can be divided

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Strbac, Snezana, Milica Kasanin-Grubin, Gordana Gajica, Jelena Mutic, and Nebojsa Vasic. "Sequential extraction studies on the river Tisa sediments for the assessment of the metal pollution." Zbornik Matice srpske za prirodne nauke, no. 139 (2020): 89–98. http://dx.doi.org/10.2298/zmspn2039089s.

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The sequential extraction procedure was applied for partitioning of metals in river sediments collected along the course of the river Tisa (Serbia). Eight elements (Sb, Sn, As, Cd, Cu, Hg, Pb and Zn) from twenty-one sampling site were analyzed using the modified BCR sequential extraction procedure in combination with ICP-OES. The results of sequential extraction, statistical analyses and calculation of EF and lithogenic and anthro?pogenic ratio of metals are similar. In the river Tisa sediments Sn, Cd, Hg, Pb and Zn are of anthropogenic origin, while As, Cu and Sb are of lithogenic and anthrop

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MOODY, FRANK G., DIANE HALEY-RUSSELL, YONG FANG LI, KATHRYN J. HUSBAND, NORMAN W. WEISBRODT, and RICHARD B. DEWEY. "The Effects of Lithogenic Bile on Gallbladder Epithelium." Annals of Surgery 210, no. 3 (1989): 406. http://dx.doi.org/10.1097/00000658-198909000-00016.

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Duffey, Branden G., Renato N. Pedro, Carly Kriedberg, et al. "Lithogenic Risk Factors in the Morbidly Obese Population." Journal of Urology 179, no. 4 (2008): 1401–6. http://dx.doi.org/10.1016/j.juro.2007.11.072.

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Alfimov, A. E., I. A. Shaderkina, D. O. Korolev, et al. "Markers of lithogenic activity in kidney stone disease." Andrology and Genital Surgery 23, no. 4 (2023): 36–45. http://dx.doi.org/10.17650/2070-9781-2022-23-4-36-45.

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Morin, Evelyne, Diane Mignault, and Guylaine Bouchard. "The Abcc2-Lith2 locus induces hypersensitivity to the biliary lithogenic effect of oestrogens by precipitating the onset of lithogenic bile." Gastroenterology 124, no. 4 (2003): A59. http://dx.doi.org/10.1016/s0016-5085(03)80289-5.

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Weber, Liane, and Joachim Eberle. "Distinction of lithogenic and pedogenic features in arctic soils - methodical aspects." Zeitschrift für Geomorphologie Supplement Volumes 99 (September 13, 1995): 123–31. http://dx.doi.org/10.1127/zfgsuppl/99/1995/123.

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Homoky, William B., Tim M. Conway, Seth G. John, et al. "Iron colloids dominate sedimentary supply to the ocean interior." Proceedings of the National Academy of Sciences 118, no. 13 (2021): e2016078118. http://dx.doi.org/10.1073/pnas.2016078118.

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Dissolution of marine sediment is a key source of dissolved iron (Fe) that regulates the ocean carbon cycle. Currently, our prevailing understanding, encapsulated in ocean models, focuses on low-oxygen reductive supply mechanisms and neglects the emerging evidence from iron isotopes in seawater and sediment porewaters for additional nonreductive dissolution processes. Here, we combine measurements of Fe colloids and dissolved δ56Fe in shallow porewaters spanning the full depth of the South Atlantic Ocean to demonstrate that it is lithogenic colloid production that fuels sedimentary iron supply

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Pakula, R., F. M. Konikoff, A. M. Moser, et al. "The effects of short term lipid infusion on plasma and hepatic bile lipids in humans." Gut 45, no. 3 (1999): 453–58. http://dx.doi.org/10.1136/gut.45.3.453.

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BACKGROUNDPatients on parenteral nutrition have an increased incidence of gall bladder sludge and gallstone disease, thought to be related to bile stasis. Intravenous lipid emulsions, especially those containing medium chain triglycerides, have also been shown to have a lithogenic effect on the composition of bile in the gall bladder.AIMSTo determine whether lipid infusion influences hepatic bile composition in patients with an indwelling T tube following cholecystectomy and choledochotomy.METHODSIn eight patients undergoing the above surgical procedure, the time at which effects of the interr

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Kahal, Ali Y., Abdelbaset S. El-Sorogy, Saleh I. Qaysi, Mansour H. Al-Hashim, and Ahmed Al-Dossari. "Environmental Risk Assessment and Sources of Potentially Toxic Elements in Seawater of Jazan Coastal Area, Saudi Arabia." Water 15, no. 18 (2023): 3174. http://dx.doi.org/10.3390/w15183174.

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High levels of potentially toxic elements (PTEs) in water bodies negatively affect the biota of aquatic ecosystems and surrounding environments. A risk assessment investigation of the levels and distribution of PTEs in the seawater of the Jazan coastal area, southwest Saudi Arabia, was conducted. Thirty-two surface seawater samples were collected, and contamination (Cd) and heavy metal pollution (HPI) indices, as well as multivariate statistics, were applied. The average PTE levels (µg/L), in descending order of magnitude, were Cu (2.56), Pb (2.27), Ni (1.30), Cr (1.28), Zn (1.04), Sb (0.36),

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Kawahata, Hodaka, Rena Maeda, and Hideaki Ohshima. "Fluctuations in Terrestrial–Marine Environments in the Western Equatorial Pacific during the Late Pleistocene." Quaternary Research 57, no. 1 (2002): 71–81. http://dx.doi.org/10.1006/qres.2001.2282.

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AbstractLarge heat storage capacity in the western equatorial Pacific has played an important role in modulating global climate. The fluctuation in pollen and spore abundances, together with organic matter (OM) and lithogenics sedimentation, was investigated to reconstruct terrestrial and marine environmental change around New Guinea during the Late Pleistocene. Although appreciable contribution from Indonesian Maritime Continent was expected, the majority of the pollen and spore grains found in core C4402 was transported from New Guinea. Fern spores accounted for 70% (46–90%) of the total pol

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