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Journal articles on the topic 'Liber diurnus'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 March 2023

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1

Hack, Achim Thomas. "Dies natalis papae – der „Geburtstag“ des Papstes." Quellen und Forschungen aus italienischen Archiven und Bibliotheken 101, no. 1 (2021): 151–69. http://dx.doi.org/10.1515/qufiab-2021-0009.

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Abstract The dies natalis papae has received little attention in the previous literature. This is not the actual birthday of the Roman chief pastor, but the anniversary of his consecration as bishop. Explicit evidence of this has been available since the second half of the 4th century (Damasus I), mainly in letters. However, the recording of the exact consecration dates since the 250s suggests that the day was also celebrated earlier. In any case, it is certain that the dies natalis papae was celebrated as a festival of joy and gratitude for the (albeit undeservedly conferred) Petrine office. Numerous bishops from all over Italy are invited to attend, and, if necessary, these gatherings can also be used for synods. While Leo I regularly exploits this opportunity to preach – five „Sermones“ have survived, after all – 150 years later Gregory the Great flatly rejects the celebration as „superfluous vanity“ and instead refers to the „birthday celebration“ of St. Peter himself. The Roman „Liber Diurnus“ has its own forms of epistolary „invitatoria in natale papae“ as well as „excusatoria quando episcopus infirmatur“, and the sacramentaries of this time contain models for the celebration, i. e. „Orationes in natale papae“ or „in natale episcoporum“.

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2

Brass, Thomas J., Gary J. Keever, Charles H. Gilliam, and D. Joseph Eakes. "Styrene Lining and Container Size Affect Substrate Temperature." Journal of Environmental Horticulture 14, no. 4 (1996): 184–86. http://dx.doi.org/10.24266/0738-2898-14.4.184.

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Abstract The influence of container size and styrene lining on substrate temperature, and their relationship to ambient air temperature were evaluated. Maximum substrate temperatures adjacent to the west sidewall averaged 8C (14.4F) and 7C (12.6F) less in 2.7 liter (#1) and 10.3 liter (#3) containers with 2.6 mm (0.1 in) thick styrene, respectively, than in unlined containers during the summer. Maximum summer substrate temperatures in lined and unlined 10.3 liter (#3) containers were 4C (7.2F) and 5C (9F) lower, respectively, than in lined and unlined 2.7 liter (#1) containers. During diurnal periods of rapidly fluctuating winter temperatures, minimum substrate temperatures in 2.7 liter (#1) styrene-lined containers averaged 3C (5.4F) higher than in ones without styrene; styrene lining also reduced diurnal fluctuations in substrate temperatures in 2.7 liter (#1) and 10.3 liter (#3) containers by 11C (19.8F) and 7.5C (13.5), respectively, when compared to those in unlined containers. When ambient air temperature lacked wide fluctuations during winter diurnal cycles, extreme variations in substrate temperatures were not present. However, minimum substrate temperatures in styrene-lined 2.7 liter (#1) and 10.3 liter (#3) containers averaged over 2C (3.6F) and 3C (5.4F), respectively, higher than those in unlined containers.

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3

Beeson, R. C., and E. F. Gilman. "Diurnal Water Stress During Landscape Establishment of Slash Pine Differs Among Three Production Methods." Arboriculture & Urban Forestry 18, no. 6 (1992): 281–87. http://dx.doi.org/10.48044/jauf.1992.054.

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Three year-old slash pine seedlings {Pinus elliottii) were transplanted from 3.8 liter (1 gal) plastic containers directly into the soil, in the soil within fabric containers, or into 57 liter (15 gal) plastic containers. After 2 yr in the nursery, trees grown by all three production methods were dug and retransplanted to a new site. Eight weeks prior to transplanting, half the soil-grown trees were root pruned. Water potential was measured on needle fascicles on a diurnal basis at least monthly after transplanting. Based on comparisons of diurnal water potential curves with nontransplanted control trees, trees which were transplanted from field soil or from fabric containers were established after 27 weeks. Trees planted from plastic containers required 35 weeks to become established.

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4

Kilciler, Guldem, Metin Ozata, Cagatay Oktenli, et al. "Diurnal Leptin Secretion Is Intact in Male Hypogonadotropic Hypogonadism and Is Not Influenced by Exogenous Gonadotropins." Journal of Clinical Endocrinology & Metabolism 87, no. 11 (2002): 5023–29. http://dx.doi.org/10.1210/jc.2002-020516.

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Abstract Circulating leptin shows a pulsatile secretory pattern along with a nocturnal rise. We have previously shown that circulating leptin concentrations are high in males with untreated idiopathic hypogonadotropic hypogonadism (IHH). However, circadian leptin secretion in IHH before and after gonadotropin treatment is not known. Thus, we studied 14 adult males with IHH who had no history of previous hormonal therapy, and 12 age- and body mass index-matched healthy men. Plasma leptin concentrations were measured with 1-h intervals for 24 h before and 6 months after gonadotropin treatment. The 24-h mean leptin concentration showed a significant decrease, from 11.78 ± 1.908 μg/liter at baseline to 10.85 ± 1.939 μg/liter after 6 months of therapy (z = 3.107; P = 0.002). Before and after treatment, 24-h mean leptin concentrations were also significantly higher in the patient group when compared with controls (4.275 ± 0.711 μg/liter) (z = 5.938; P = 0.0001). Hourly leptin levels demonstrated a diurnal pattern in hypogonadal patients, a surge in the midday, and a peak just after midnight, and this pattern did not differ before and after treatment. We observed a similar diurnal pattern in the control subjects too. Leptin levels were negatively and significantly correlated with free testosterone and total testosterone levels both before (r = −0.656, P = 0.011; and r = −0.639, P = 0.014, respectively) and after (r = −0.537, P = 0.048; and r = −0.563, P = 0.036, respectively) gonadotropin administration. Our observations suggest that the diurnal rhythm of leptin is intact in males with IHH, and short-term gonadotropin treatment does not effect its diurnal rhythm. Moreover, testosterone produced under the influence of the gonadotropin treatment led to decreases in the leptin levels.

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5

Solano Mora, Luis, Marianela Segura Castro, and Diego A. Rodríguez Méndez. "Sistematización de las intervenciones realizadas por el Programa Movimiento para la Vida (MOVI) en ocho centros diurnos de la provincia de Heredia durante el periodo 2013-2017." Universidad en Diálogo: Revista de Extensión 9, no. 2 (2019): 59–75. http://dx.doi.org/10.15359/udre.9-2.3.

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El propósito de la investigación fue sistematizar las experiencias vividas en ocho centros diurnos de la provincia de Heredia durante el periodo 2013-2017, a partir de intervenciones basadas en movimiento humano para la prevención del envejecimiento patológico. Las intervenciones realizadas se basaron en estrategias que buscaron promover el mantenimiento de diversas variables físicas predictoras de funcionalidad, las relaciones interpersonales positivas, la expresión de emociones y el uso positivo del tiempo libre. Para evaluar las experiencias de cada sesión se utilizó un instrumento de registro diario en línea que permitió obtener las distintas percepciones de los participantes de cada uno de los centros diurnos. De este modo, se registraron todas las experiencias durante el periodo comprendido entre el 2013 y el 2017 y se procedió a sistematizarlas por cada año de trabajo. Con base en la sistematización realizada, se concluye que una intervención basada en el movimiento humano, efectuada una vez por semana durante aproximadamente 50 min, permitió mantener a las personas usuarias de los centros diurnos motivadas, alegres, proactivas y dinámicas, por lo que se sugiere mantener este tipo de intervenciones en los centros diurnos.

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6

Rabinowitz, L., R. Berlin, and H. Yamauchi. "Plasma potassium and diurnal cyclic potassium excretion in the rat." American Journal of Physiology-Renal Physiology 253, no. 6 (1987): F1178—F1181. http://dx.doi.org/10.1152/ajprenal.1987.253.6.f1178.

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The relation of the plasma potassium concentration to the daily cyclic variation in potassium excretion was examined in undisturbed, unanesthetized male Sprague-Dawley rats maintained on a liquid diet in a 12-h light-dark environment. Potassium excretion increased from a light-phase minimum of 16 mu eq/h to a peak of 256 mu eq/h 3 h after the beginning of the dark phase. Plasma potassium concentration in arterial blood, sampled in rats at 90-min intervals during these changes in potassium excretion, showed no significant change and was in the range 4.50-4.99 meq/liter. In adrenalectomized rats receiving aldosterone and dexamethasone at constant basal rates by implanted pumps, the daily cycle of potassium excretion was the same as in the intact rats, and plasma potassium was not significantly different when measured at the time of minimum and maximum rates of potassium excretion (4.79 +/- 0.42 vs 5.16 +/- 0.47 meq/liter, mean +/- SD). These results indicate that plasma potassium concentration is not the efferent factor controlling diurnal cyclic changes in potassium excretion in adrenal intact rats and may not be the only significant factor in adrenalectomized-steroid replaced rats.

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7

Khan, M. K., M. D. Camillis, G. D. Emidio, and A. Bezuijen. "Experimental study to evaluate soil water retention curve of HYPER clay geosynthetic clay liner." IOP Conference Series: Materials Science and Engineering 1260, no. 1 (2022): 012027. http://dx.doi.org/10.1088/1757-899x/1260/1/012027.

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Abstract Geosynthetic clay liners are widely used as hydraulic barrier due to their low hydraulic conductivity but bentonite in the liners loses its effectiveness due to significant thermal fluxes by both diurnal and seasonal heating and cooling cycles. Modified sodium carboxy methyl cellulose-based bentonite clay (HYPER clay) has shown better hydraulic performance in both situations. A possible reason for this improved performance of HYPER clay based geosynthetic clay liner is the improvement in the suction under changing thermal conditions. Thus, the relationship between soil suction and moisture content, also called the soil water retention curve, needs to be estimated. Therefore, we investigated the soil-water retention curve of the HYPER clay based geosynthetic clay liner and compared it with the untreated clay based geosynthetic clay liner. The article presents the suction test results on wetting path conducted on geosynthetic clay liner prototypes containing HYPER and untreated clay assessed by the contact filter paper method and the relative humidity sensor. The results showed that the geosynthetic clay liner containing HYPER clay has a high volumetric water content and thus, high water retention compared to untreated bentonite at a given suction value. In other words, the HYPER clay can be considered as a potential alternative to conventional bentonite due to its improved water retention capacity.

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8

Aziz, N. Ahmad, Hanno Pijl, Marijke Frölich, A. W. Maurits van der Graaf, Ferdinand Roelfsema, and Raymund A. C. Roos. "Increased Hypothalamic-Pituitary-Adrenal Axis Activity in Huntington’s Disease." Endocrinology 150, no. 3 (2009): 1558. http://dx.doi.org/10.1210/endo.150.3.9999.

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Abstract Context: Huntington’s disease (HD) is a fatal hereditary neurodegenerative disorder characterized by motor, cognitive, and behavioral disturbances. Hypothalamic-pituitary-adrenal (HPA) axis dysfunction could contribute to a number of HD signs and symptoms; however, no data are available on cortisol diurnal variations and secretory dynamics in HD patients. Objective: The aim of the study was to perform a detailed analysis of HPA axis function in HD patients in relation to clinical signs and symptoms. Design, Setting, and Participants: Twenty-four-hour cortisol secretion was studied in eight early-stage, medication-free HD patients and eight age-, sex-, and body mass index-matched controls in a clinical research laboratory. Cortisol levels were measured every 10 min. Main Outcome Measures: Multiparameter autodeconvolution and cosinor regression were applied to quantify basal, pulsatile, and total cortisol secretion rates as well as diurnal variations in cortisol levels. Results: Total cortisol secretion rate and the amplitude of the diurnal cortisol profile were both significantly higher in HD patients compared with controls (3490 ± 320 vs. 2500 ± 220 nmol/liter/24 h, P = 0.023; and 111 ± 14 vs. 64 ± 8 nmol/liter, P = 0.012, respectively). Cortisol concentrations in patients were particularly increased in the morning and early afternoon period. In HD patients, mean 24-h cortisol levels significantly correlated with total motor score, total functional capacity, as well as body mass index. Conclusions: HPA axis hyperactivity is an early feature of HD and is likely to result from a disturbed central glucocorticoid feedback due to hypothalamic pathology. HPA axis dysfunction may contribute to some signs and symptoms in HD patients.

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9

Sinturel, Flore, and Frédéric Gachon. "Diurnal liver mass is associated with ribosome biogenesis." Oncotarget 8, no. 57 (2017): 96476–77. http://dx.doi.org/10.18632/oncotarget.22255.

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10

Robins, S. J., J. M. Fasulo, C. R. Pritzker, J. M. Ordovas, and G. M. Patton. "Diurnal changes and adaptation by the liver of hamsters to an atherogenic diet." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 269, no. 6 (1995): R1327—R1332. http://dx.doi.org/10.1152/ajpregu.1995.269.6.r1327.

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Studies were performed in freely feeding, male (F1B) Syrian hamsters fed a high-fat diet to determine the extent and manner of adaptation of the liver to diurnal changes in eating patterns and an increase in serum lipids. Serum cholesterol and triglycerides strongly paralleled changes in food consumption and were 40-50% greater during the 12-h dark period than the 12-h light period of the diurnal cycle. Hepatic cholesterol changes closely approximated changes in serum cholesterol (r = 0.916) due principally to changes in hepatic cholesteryl esters that were on average about 10-fold greater with the high-fat diet than with a chow diet. With the high-fat diet, hepatic cholesteryl esters were, however, extremely variable and were 40% greater at the mid-dark than at the mid-light period. With high fat there was also a marked increase in the secretion of very low density lipoproteins (VLDL) from the liver that were cholesteryl ester rich and closely paralleled the diurnal changes in hepatic cholesteryl esters (r = 0.911). In contrast, although with a high-fat diet biliary cholesterol secretion was increased, the increase in cholesterol in bile exhibited no diurnal pattern and with the high-fat diet was far less in magnitude than the increase of cholesterol in VLDL. Biliary cholesterol secretion is dependent on bile acid secretion. However, with the high-fat diet, neither the bile acid pool size nor bile acid secretion was increased compared with chow-fed controls. Moreover, with high fat at mid-dark period, bile acid secretion was significantly less than controls at mid-dark period. Thus in these hamsters a high-fat diet produced a marked increase in serum cholesterol that was distinctly diurnal and was compensated for by a diurnal increase in hepatic cholesteryl ester stores and the secretion of cholesteryl esters in VLDL. In contrast, cholesterol secretion in bile did not correspond to the fluctuating changes of cholesterol in the liver and was far less in magnitude than would be necessary to reduce a greatly expanded pool of hepatic cholesterol.

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11

Davidson, Alec J., Oscar Castanon-Cervantes, and Friedrich K. Stephan. "Daily oscillations in liver function: diurnal vs circadian rhythmicity." Liver International 24, no. 3 (2004): 179–86. http://dx.doi.org/10.1111/j.1478-3231.2004.00917.x.

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12

Wang, Jingkui, Daniel Mauvoisin, Eva Martin, et al. "Nuclear Proteomics Uncovers Diurnal Regulatory Landscapes in Mouse Liver." Cell Metabolism 25, no. 1 (2017): 102–17. http://dx.doi.org/10.1016/j.cmet.2016.10.003.

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13

Frederiks, W. M., F. Marx, K. S. Bosch, and C. J. F. Van Noorden. "Diurnal variation in 5′-nucleotidase activity in rat liver." Histochemistry 87, no. 5 (1987): 439–43. http://dx.doi.org/10.1007/bf00496815.

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14

Mauvoisin, Daniel, Florian Atger, Loïc Dayon, et al. "Circadian and Feeding Rhythms Orchestrate the Diurnal Liver Acetylome." Cell Reports 20, no. 7 (2017): 1729–43. http://dx.doi.org/10.1016/j.celrep.2017.07.065.

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15

Fukuda, Hitomi, and Nobuko Iritani. "Diurnal variations of lipogenic enzyme mRNA quantities in rat liver." Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism 1086, no. 3 (1991): 261–64. http://dx.doi.org/10.1016/0005-2760(91)90168-h.

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16

Martinez, María José, JoséIgnacio Ruiz, Mercedes Lacort, and Begon˜a Ochoa. "Diurnal variations of rat liver enzymes catalyzing cholesterol ester hydrolysis." Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism 1085, no. 1 (1991): 106–11. http://dx.doi.org/10.1016/0005-2760(91)90237-c.

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17

Guan, Dongyin, Ying Xiong, Trang Minh Trinh, et al. "The hepatocyte clock and feeding control chronophysiology of multiple liver cell types." Science 369, no. 6509 (2020): 1388–94. http://dx.doi.org/10.1126/science.aba8984.

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Most cells of the body contain molecular clocks, but the requirement of peripheral clocks for rhythmicity and their effects on physiology are not well understood. We show that deletion of core clock components REV-ERBα and REV-ERBβ in adult mouse hepatocytes disrupts diurnal rhythms of a subset of liver genes and alters the diurnal rhythm of de novo lipogenesis. Liver function is also influenced by nonhepatocytic cells, and the loss of hepatocyte REV-ERBs remodels the rhythmic transcriptomes and metabolomes of multiple cell types within the liver. Finally, alteration of food availability demonstrates the hierarchy of the cell-intrinsic hepatocyte clock mechanism and the feeding environment. Together, these studies reveal previously unsuspected roles of the hepatocyte clock in the physiological coordination of nutritional signals and cell-cell communication controlling rhythmic metabolism.

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18

Zandieh-Doulabi, B., E. Dop, M. Schneiders, et al. "Zonal expression of the thyroid hormone receptor alpha isoforms in rodent liver." Journal of Endocrinology 179, no. 3 (2003): 379–85. http://dx.doi.org/10.1677/joe.0.1790379.

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Many metabolic processes occur simultaneously in the liver in different locations along the porto-central axis of the liver units. These processes are often regulated by hormones, one of which is thyroid hormone which for its action depends on the presence of the different isoforms of the thyroid hormone receptor (TR). These are encoded by two genes: c-erbA-alpha encoding TRalpha1 and TRalpha2 and their respective Delta isoforms, and c-erbA-beta which encodes TRbeta1, TRbeta2 and TRbeta3. We recently found a zonal (pericentral) expression of and a diurnal variation in the TRbeta1 isoform in rat liver. We were therefore also interested to see whether TRalpha1 and TRalpha2 expression showed similar characteristics. For this reason we raised both polyclonal and monoclonal antibodies against TRalpha1 and TRalpha2 isoforms and characterised these. Antibody specificity was tested using Western blots and immunohistochemistry in liver of TR isoform-specific knockout animals. Using these antibodies we found that the TRalpha1 and TRalpha2 isoforms are zonally expressed around the central vein in rat liver. The experiments show that the portal to central gradient of TRalpha1 is broader than that of TRbeta1. Moreover, the expression of the TRalpha2 protein showed a diurnal variation with a peak in the afternoon when the animals are least active whereas no such variation was found for the TRalpha1 protein.From our data it appears that both the TRalpha1 and TRalpha2 isoforms show a zonal distribution in liver. This finding, together with the observed diurnal rhythm, has major implications for interpreting and timing experiments concerning the TR and its downstream actions in liver.

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19

Royo, T., J. Ayté, F. Albericio, E. Giralt, D. Haro, and F. G. Hegardt. "Diurnal rhythm of rat liver cytosolic 3-hydroxy-3-methylglutaryl-CoA synthase." Biochemical Journal 280, no. 1 (1991): 61–64. http://dx.doi.org/10.1042/bj2800061.

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Rat liver cytosolic 3-hydroxy-3-methylglutaryl-CoA (HMG-CoA) synthase exhibits a diurnal rhythm of enzyme activity which coincides with the diurnal rhythm of HMG-CoA synthase protein. The peaks of activity and protein (determined by SDS/PAGE and immunoblotting) both occur at D10 (the tenth hour of the daily 12 h dark cycle). The peak of mRNA levels (measured by slot-blot hybridization of liver RNA) is slightly advanced with respect to that of protein, by about 4 h, and shows a maximum at D6. Cytosolic HMG-CoA synthase activity and protein in rats fed on a normal diet were approx. 2-fold higher during the peak at D10 than in the nadir at D2. HMG-CoA synthase mRNA levels were approx. 4-fold higher during the peak at D6 than in the nadir at D2. These results point to a transcriptional and translational regulation of the cytosolic HMG-CoA synthase.

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20

Kaminsky, Yury G., and Elen A. Kosenko. "Diurnal rhythms in liver carbohydrate metabolism. Comparative aspects and critical review." Comparative Biochemistry and Physiology Part B: Comparative Biochemistry 86, no. 4 (1987): 763–84. http://dx.doi.org/10.1016/0305-0491(87)90224-0.

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21

Rusnak, Nick, and Skaidrite K. Krisans. "Diurnal variation of HMG-CoA reductase activity in rat liver peroxisomes." Biochemical and Biophysical Research Communications 148, no. 2 (1987): 890–95. http://dx.doi.org/10.1016/0006-291x(87)90959-4.

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22

Sobel, Jonathan Aryeh, Irina Krier, Teemu Andersin, et al. "Transcriptional regulatory logic of the diurnal cycle in the mouse liver." PLOS Biology 15, no. 4 (2017): e2001069. http://dx.doi.org/10.1371/journal.pbio.2001069.

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23

Córdoba, Juan, Ken O'Riordan, Josée Dupuis, Jayme Borensztajn, and Andres T. Blei. "Diurnal variation of serum alanine transaminase activity in chronic liver disease." Hepatology 28, no. 6 (1998): 1724–25. http://dx.doi.org/10.1002/hep.510280640.

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24

Ogawa, H., H. C. Pitot, and M. Fujioka. "Diurnal Variation of the Serine Dehydratase mRNA Level in Rat Liver." Archives of Biochemistry and Biophysics 308, no. 1 (1994): 285–91. http://dx.doi.org/10.1006/abbi.1994.1040.

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25

Salas, Michel, G. Biessy, and E. Magne. "Effet du mode de conduite au pâturage et de la complémentation sur le comportement alimentaire des bovins en Guadeloupe." Revue d’élevage et de médecine vétérinaire des pays tropicaux 43, no. 3 (1990): 381–86. http://dx.doi.org/10.19182/remvt.8820.

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Les auteurs ont comparé le comportement alimentaire de bovins guadeloupéens selon quatre modes de conduite : pâturage à l'attache 24 h/24 (lot 1), pâturage libre 24 h/24 (lot 2), pâturage la nuit et mise en parc la journée (lot 4). Les animaux mis en parc reçoivent une alimentation complémentaire à base de canne à sucre. Les bovins sont surtout actifs au cours de la journée : pour les lots 1 et 2 respectivement, 84 et 75 p. 100 du temps consacré à l'ingestion se situent entre 6 h et 18 h. Les animaux attachés (lot 1) ont une durée d'ingestion plus brève que ceux en pâturage libre (lot 2), mais les mesures effectuées ne permettent pas d'estimer les quantités totales ingérées par les deux lots. Les animaux mis en parc pendant la nuit (lot 3) ont une durée d'ingestion diurne au pâturage proche de celle observée en pâturage permanent (lot 1). En revanche, les animaux mis en parc pendant la journée (lot 4) ne reportent que partielle ment l'ingestion au pâturage sur la période 18 h-6 h, et la durée d'ingestion de la canne à sucre pendant la journée n'est que faiblement supérieure à celle du lot 3. La mise en parc pendant la journée induit donc une baisse importante de la durée totale d'ingestion.

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Doulabi, B. Zandieh, M. Platvoet-Ter Schiphorst, A. Kalsbeek, E. Fliers, O. Bakker та W. M. Wiersinga. "Diurnal Variation in Rat Liver Thyroid Hormone Receptor (TR)-α Messenger Ribonucleic Acid (mRNA) Is Dependent on the Biological Clock in the Suprachiasmatic Nucleus, whereas Diurnal Variation of TRβ1 mRNA Is Modified by Food Intake". Endocrinology 145, № 3 (2004): 1284–89. http://dx.doi.org/10.1210/en.2003-0791.

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Abstract Previous studies have shown a diurnal variation of certain isoforms of thyroid hormone receptors (TR) in rat liver. The genesis of these diurnal changes is still unknown. To clarify whether the biological clock, located in the hypothalamic suprachiasmatic nucleus (SCN), is involved, we made selective SCN lesions. Rats with an SCN lesion lost their circadian rhythm of plasma corticosterone and TSH when compared with intact animals. TRα1 and TRα2 mRNA expression of control rats was higher in the light period than in the dark period; changes that were abolished in the rats with SCN lesions. In contrast, liver TRβ1 mRNA of intact rats showed a diurnal variation that failed to reach statistical significance. To evaluate whether these effects could be explained indirectly by the disappearance of rhythmic feeding behavior in rats with SCN lesions, we performed a second experiment in which otherwise intact animals were subjected to a regular feeding (RF) schedule, with one meal every 4 h. When compared with rats with free access to food, RF only affected TRβ1 mRNA expression and had no effect on the diurnal changes in TRα1 and TRα2. We conclude that liver TRβ1 expression is most clearly affected by food intake. Diurnal changes in liver TRα1 and TRα2 are controlled by the biological clock in the SCN but not via changes in the daily rhythm of food intake. The findings may have physiological relevance for diurnal variation of T3-dependent gene expression, which is supported by a diurnal variation in the expression of the 5′-deiodinase gene.

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Brolinson, Annelie, Stéphane Fourcade, Andreas Jakobsson, Aurora Pujol, and Anders Jacobsson. "Steroid Hormones Control Circadian Elovl3 Expression in Mouse Liver." Endocrinology 149, no. 6 (2008): 3158–66. http://dx.doi.org/10.1210/en.2007-1402.

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The Elovl3 gene belongs to the Elovl gene family, which encodes for enzymes involved in the elongation of very long chain fatty acids. The recognized role for the enzyme is to control the elongation of saturated and monounsaturated fatty acids up to 24 carbons in length. Elovl3 was originally identified as a highly expressed gene in brown adipose tissue on cold exposure. Here we show that hepatic Elovl3 mRNA expression follows a distinct diurnal rhythm exclusively in mature male mice, with a sharp increase early in the morning Zeitgeber time (ZT) 20, peaks around ZT2, and is back to basal level at the end of the light period at ZT10. In female mice and sexually immature male mice, the Elovl3 expression was constantly low. Fasting and refeeding mice with chow or high-fat diet did not alter the Elovl3 mRNA levels. However, animals that were exclusively fed during the day for 9 d displayed an inverted expression profile. In addition, we show that Elovl3 expression is transcriptionally controlled and significantly induced by the exposure of the synthetic glucocorticoid dexamethasone. Taken together, these data suggest that Elovl3 expression in mouse liver is under strict diurnal control by circulating steroid hormones such as glucocorticoids and androgens. Finally, Elovl3 expression was found to be elevated in peroxisomal transporter ATP-binding cassette, subfamily D(ALD), member 2 ablated mice and suppressed in ATP-binding cassette subfamily D(ALD) member 2 overexpressing mice, implying a tight cross talk between very long chain fatty acid synthesis and peroxisomal fatty acid oxidation.

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Sprenger, Richard R., Martin Hermansson, Ditte Neess, et al. "Lipid molecular timeline profiling reveals diurnal crosstalk between the liver and circulation." Cell Reports 34, no. 5 (2021): 108710. http://dx.doi.org/10.1016/j.celrep.2021.108710.

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TSUCHIYA, Yoshiki, Itsunari MINAMI, Hiroshi KADOTANI, Takeshi TODO, and Eisuke NISHIDA. "Circadian clock-controlled diurnal oscillation of Ras/ERK signaling in mouse liver." Proceedings of the Japan Academy, Series B 89, no. 1 (2013): 59–65. http://dx.doi.org/10.2183/pjab.89.59.

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30

Sinturel, Flore, Alan Gerber, Daniel Mauvoisin, et al. "Diurnal Oscillations in Liver Mass and Cell Size Accompany Ribosome Assembly Cycles." Cell 169, no. 4 (2017): 651–63. http://dx.doi.org/10.1016/j.cell.2017.04.015.

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Piscaglia, Fabio, Sebastiano Siringo, Ramon C. Hermida, et al. "Diurnal changes of fibrinolysis in patients with liver cirrhosis and esophageal varices." Hepatology 31, no. 2 (2000): 349–57. http://dx.doi.org/10.1002/hep.510310214.

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32

Marler, Thomas E., Louann C. Guzman, and John H. Lawrence. "Growth and Phyllode Gas Exchange of Three Acacia Species as Influenced by Developmental Light Level." HortScience 30, no. 4 (1995): 860B—860. http://dx.doi.org/10.21273/hortsci.30.4.860b.

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Acacia auriculiformis, A. mangium, and A. koa trees were grown in 5.4-liter containers under conditions of 100%, 44%, or 19% sunlight transmission to determine biomass accumulation and partitioning and phyllode gas-exchange responses to developmental light level. Following ≈100 days of growth, all three species exhibited a linear decrease in relative growth rate and biomass accumulation in response to developmental light level. The influence of reduced developmental light level on growth was similar for the three species, with biomass accumulation under 19% transmission averaging ≈20% of that under full sunlight. In a second study, the diurnal pattern of gas exchange of mature phyllodes was determined. Gas exchange of phyllodes under 19% or 44% transmission depended on photosynthetic photon flux throughout the day. In contrast, gas exchange of phyllodes in 100% transmission was highest in early to midmorning on sunny days. Phyllode gas exchange slowly declined thereafter for A. mangium and A. koa, but rapidly declined then slightly recovered in late afternoon for A. auriculiformis.

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Onodera, K. "Serum leptin concentrations in liver cirrhosis: relationship to the severity of liver dysfunction and their characteristic diurnal profiles." Hepatology Research 21, no. 3 (2001): 205–12. http://dx.doi.org/10.1016/s1386-6346(01)00107-3.

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34

Maekawa, Fumihiko, Shigeki Shimba, Shota Takumi, et al. "Diurnal expression ofDnmt3bmRNA in mouse liver is regulated by feeding and hepatic clockwork." Epigenetics 7, no. 9 (2012): 1046–56. http://dx.doi.org/10.4161/epi.21539.

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35

Roesler, William J., and Ramji L. Khandelwal. "Diurnal variations in the activities of the glycogen metabolizing enzymes in mouse liver." International Journal of Biochemistry 17, no. 1 (1985): 81–85. http://dx.doi.org/10.1016/0020-711x(85)90089-8.

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36

Udoh, Uduak S., Ashley U. Filiano, Telisha M. Swain, and Shannon M. Bailey. "Chronic Alcohol Consumption Disrupts the Diurnal Rhythm of the Thioredoxin System in Liver." Free Radical Biology and Medicine 53 (November 2012): S36—S37. http://dx.doi.org/10.1016/j.freeradbiomed.2012.10.095.

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37

Gong, Shenhai, Tian Lan, Liyan Zeng, et al. "Gut microbiota mediates diurnal variation of acetaminophen induced acute liver injury in mice." Journal of Hepatology 69, no. 1 (2018): 51–59. http://dx.doi.org/10.1016/j.jhep.2018.02.024.

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38

He, Yiting, Haobin Cen, Lianxia Guo, et al. "Circadian oscillator NPAS2 regulates diurnal expression and activity of CYP1A2 in mouse liver." Biochemical Pharmacology 206 (December 2022): 115345. http://dx.doi.org/10.1016/j.bcp.2022.115345.

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39

Atger, Florian, Cédric Gobet, Julien Marquis, et al. "Circadian and feeding rhythms differentially affect rhythmic mRNA transcription and translation in mouse liver." Proceedings of the National Academy of Sciences 112, no. 47 (2015): E6579—E6588. http://dx.doi.org/10.1073/pnas.1515308112.

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Diurnal oscillations of gene expression are a hallmark of rhythmic physiology across most living organisms. Such oscillations are controlled by the interplay between the circadian clock and feeding rhythms. Although rhythmic mRNA accumulation has been extensively studied, comparatively less is known about their transcription and translation. Here, we quantified simultaneously temporal transcription, accumulation, and translation of mouse liver mRNAs under physiological light–dark conditions and ad libitum or night-restricted feeding in WT and brain and muscle Arnt-like 1 (Bmal1)-deficient animals. We found that rhythmic transcription predominantly drives rhythmic mRNA accumulation and translation for a majority of genes. Comparison of wild-type and Bmal1 KO mice shows that circadian clock and feeding rhythms have broad impact on rhythmic gene expression, Bmal1 deletion affecting surprisingly both transcriptional and posttranscriptional levels. Translation efficiency is differentially regulated during the diurnal cycle for genes with 5′-Terminal Oligo Pyrimidine tract (5′-TOP) sequences and for genes involved in mitochondrial activity, many harboring a Translation Initiator of Short 5′-UTR (TISU) motif. The increased translation efficiency of 5′-TOP and TISU genes is mainly driven by feeding rhythms but Bmal1 deletion also affects amplitude and phase of translation, including TISU genes. Together this study emphasizes the complex interconnections between circadian and feeding rhythms at several steps ultimately determining rhythmic gene expression and translation.

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Rojas-Torres, Andrea Carolina, Diana Carolina Tiga-Loza, and Wilber Bello-Pinto. "Calidad de vida laboral en empleados de una empresa distribuidora de bebidas de Santander, Colombia." Medicina y Seguridad del Trabajo 67, no. 265 (2022): 253–65. http://dx.doi.org/10.4321/s0465-546x2021000400002.

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Introducción: Es deber de las organizaciones preocuparse por el bienestar físico, mental y social de los trabajadores. Evaluar la calidad de vida laboral puede indicar cómo el empleo cubre las necesidades de seguridad, satisfacción, bienestar y desarrollo personal/laboral del trabajador. Método: estudio transversal en 122 trabajadores con labores de conducción de vehículos, cargue/descargue, entrega/recepción de mercancía y dinero, seleccionados a conveniencia en una empresa distribuidora de bebidas. La calidad de vida laboral se evaluó mediante CVT-GOHISALO y se exploró su relación con variables sociodemográficas y laborales. Resultados: se encontró un alto nivel de satisfacción en el soporte institucional para el trabajo y la seguridad en el trabajo, un nivel medio en la integración al puesto y el desarrollo personal, un nivel bajo en la satisfacción a través del trabajo y un nivel de satisfacción en riesgo en el bienestar logrado y la administración del tiempo libre. La calidad de vida laboral se relacionó con el número de horas y días trabajados, también con la antigüedad en las dimensiones de integración al puesto y seguridad en el trabajo; el nivel educativo, la jornada laboral, las pausas activas y el cargo se relacionaron con todas las dimensiones excepto con soporte institucional y administración del tiempo libre. Conclusiones: La calidad de vida laboral fue valorada por cómo el empleador brinda los elementos e indicaciones necesarias para realizar el trabajo; pero con deficiencias en el bienestar y el manejo del tiempo. La calidad de vida fue más baja en trabajadores con secundaria, que laboran más días/horas y en la jornada diurna, tienen mayor antigüedad, son conductores y no realizan pausas activas.

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Mauvoisin, D., J. Wang, C. Jouffe, et al. "Circadian clock-dependent and -independent rhythmic proteomes implement distinct diurnal functions in mouse liver." Proceedings of the National Academy of Sciences 111, no. 1 (2013): 167–72. http://dx.doi.org/10.1073/pnas.1314066111.

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42

Kaminsky, Yury G., and Elen A. Kosenko. "Adenine nucleotide metabolism in pigeon liver and heart: Diurnal changes and correlations between indices." Comparative Biochemistry and Physiology Part B: Comparative Biochemistry 82, no. 2 (1985): 385–94. http://dx.doi.org/10.1016/0305-0491(85)90258-5.

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Chen, Min, Baozhang Guan, Haiman Xu, Fangjun Yu, Tianpeng Zhang, and Baojian Wu. "The Molecular Mechanism Regulating Diurnal Rhythm of Flavin-Containing Monooxygenase 5 in Mouse Liver." Drug Metabolism and Disposition 47, no. 11 (2019): 1333–42. http://dx.doi.org/10.1124/dmd.119.088450.

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Gaucher, Jonathan, Kenichiro Kinouchi, Nicholas Ceglia, et al. "Distinct metabolic adaptation of liver circadian pathways to acute and chronic patterns of alcohol intake." Proceedings of the National Academy of Sciences 116, no. 50 (2019): 25250–59. http://dx.doi.org/10.1073/pnas.1911189116.

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Binge drinking and chronic exposure to ethanol contribute to alcoholic liver diseases (ALDs). A potential link between ALDs and circadian disruption has been observed, though how different patterns of alcohol consumption differentially impact hepatic circadian metabolism remains virtually unexplored. Using acute versus chronic ethanol feeding, we reveal differential reprogramming of the circadian transcriptome in the liver. Specifically, rewiring of diurnal SREBP transcriptional pathway leads to distinct hepatic signatures in acetyl-CoA metabolism that are translated into the subcellular patterns of protein acetylation. Thus, distinct drinking patterns of alcohol dictate differential adaptation of hepatic circadian metabolism.

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45

Amela García, María T., Diego Aquino, Agustina Bouza, et al. "Sistema reproductivo y biología floral de Lantana camara (Verbenaceae) en una población ribereña del Río de la Plata." Boletín de la Sociedad Argentina de Botánica 54, no. 1 (2019): 29–42. http://dx.doi.org/10.31055/1851.2372.v54.n1.23578.

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Introducción y objetivos: La biología floral de Lantana camara, nativa del Centro y Sur de América e invasora cosmopolita, tiene aspectos desconocidos y controvertidos. El objetivo de este trabajo fue determinar el sistema reproductivo, atributos florales y polinizadores en una población ribereña del Río de la Plata.M&M: Se emplearon los métodos usuales de la biología de la polinización. El estudio se realizó en Ciudad Autónoma de Buenos Aires, Argentina, en la primavera de 2012.Resultados: Las flores emiten olor leve y dulce mediante osmóforos que rodean la entrada del tubo floral, coincidiendo con el patrón de absorción-reflexión en el espectro UV. El néctar se acumula en el tubo corolino, secretado probablemente por tricomas situados en la base. Durante la antesis, se suceden tres fases florales, distinguibles por cambios en la coloración de la corola, intensidad del aroma, cantidad de recompensa y madurez de las anteras y el estigma. Las flores, psicófilas, recibieron visitas de lepidópteros diurnos, y también de himenópteros, dípteros y colibríes. El mayor éxito reproductivo ocurrió con polinización libre; los índices de autocompatibilidad y P/O indicaron autocompatibilidad parcial y xenogamia facultativa, respectivamente. Conclusiones: L. camara se autopoliniza espontáneamente, probablemente una causa de su propagación global. Debido a su actividad en las flores, fase floral visitada, carga polínica y frecuencia de visitas sólo las mariposas Agraulis vanillae maculosa, Dryas iullia alcionea y Cymaenes sp. polinizarían en este sitio.

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Zhao, Mengjing, Huan Zhao, Luomin Lin, Yi Wang, Menglin Chen, and Baojian Wu. "Nuclear receptor co-repressor RIP140 regulates diurnal expression of cytochrome P450 2b10 in mouse liver." Xenobiotica 50, no. 10 (2020): 1139–48. http://dx.doi.org/10.1080/00498254.2020.1751342.

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47

Murphy, Mary E., and James R. King. "Diurnal Variation in Liver and Muscle Glutathione Pools of Molting and Nonmolting White-Crowned Sparrows." Physiological Zoology 58, no. 6 (1985): 646–54. http://dx.doi.org/10.1086/physzool.58.6.30156069.

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48

Gaudet, Andrew D., Laura K. Fonken, Monica T. Ayala, et al. "Spinal Cord Injury in Rats Dysregulates Diurnal Rhythms of Fecal Output and Liver Metabolic Indicators." Journal of Neurotrauma 36, no. 12 (2019): 1923–34. http://dx.doi.org/10.1089/neu.2018.6101.

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49

Roesler, William J., and Ramji L. Khandelwal. "The diurnal rhythm of liver glycogen phosphorylase: correlating changes in enzyme activity and enzymic protein." FEBS Letters 195, no. 1-2 (1986): 344–46. http://dx.doi.org/10.1016/0014-5793(86)80190-9.

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50

Iwata, Shingo, Kazue Ozawa, Yasuyuki Shimahara, et al. "Diurnal fluctuations of arterial ketone body ratio in normal subjects and patients with liver dysfunction." Gastroenterology 100, no. 5 (1991): 1371–78. http://dx.doi.org/10.1016/0016-5085(91)90791-i.

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