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Severe liver injury due to herbal and dietary supplements and the role of liver transplantation

World Journal of Gastroenterology 2019年第46期25卷 6704-6712页

作者： Priya Grewal Jawad Ahmad Division of Liver Diseases Icahn School of Medicine at Mount Sinai

Herbal and dietary supplements(HDS)are increasingly used worldwide for numerous,mainly unproven health *** HDS industry is poorly regulated compared to prescription medicines and most products are easily *** induced liver injury(DILI)is a well-recognized entity associated with prescription and over the counter medications and many reports have emerged of potential HDS-related *** is considerable geographic variability in the risk and severity of DILI associated with HDS but the presentation of severe liver injury is similar with a hepatocellular pattern accompanied by *** type of injury can lead to acute liver failure and the need for liver *** will often fail to mention their use of HDS,considering it natural and therefore *** physicians should understand that these products can be associated with DILI and explicitly ask about HDS use in any patient with otherwise unexplained acute liver injury.

关键词： Herbal and dietary supplements Drug induced liver injury Liver transplantation Acute liver failure geographic variability

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Morphological variability in Vipera palaestinae along an Environmental Gradient

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Asian Herpetological Research 2012年第3期3卷 227-239页

作者： Stanislav VOLYNCHIK National Collections of Natural History Department of ZoologyFaculty of Life SciencesTel Aviv University Ramat Aviv 69978Israel

The effect of local habitat conditions on organisms, including environmentally-induced morphological changes, constitutes an important aspect of macroecology and evolution. The degree of geographic intraspecific variation in body dimensions, corporeal ratios and scalation pattern among male and female Palestine vipers(Vipera palaestinae) in Israel were examined. Univariate and multivariate analyses using 20 variable features relating to metric and meristic characters were applied in order to determine the existence of geographic variability in this species. Univariate analysis revealed that the majority of morphological characters possess relatively minor interregional distinctions, with only a few traits demonstrating significant differences. Discriminant analysis of mixed-gender samples using a combination of variables did not distinguish between geographic groups within each sex. The multifactor approach slightly differentiated between samples when sexes were compared separately, but with much overlap. The continuous sampling method revealed no statistically significant relationship between geographic and metric variables across the distribution range. A weak latitudinal cline was observed in snout-vent length, with both sexes being larger in the south. Noticeable temperature-correlated intraspecific variability was found in both body and tail scale counts but not in head scalation features. Generally, both males and females demonstrate the same phenotype-environment correlation. The spatial variations in external morphology suggest that temperature conditions during early ontogenesis may induce quantitative changes in the scalation pattern of V. palaestinae.

关键词： Vipera palaestinae geographic variability scalation pattern temperature-dependent trends Viperidae

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