1.
[Hemochromatosis International: therapeutic recommendations in HFE hemochromatosis for p.Cys282Tyr homozygous genotype].
Zhang, W, Huang, J, Ou, XJ, You, H, Jia, JD
Zhonghua gan zang bing za zhi = Zhonghua ganzangbing zazhi = Chinese journal of hepatology. 2019;(12):980-981
Abstract
Hereditary hemochromatosis is a kind of hereditary metabolic liver disorders. It is caused by mutations in genes related to hemochromatosis, which leads to over deposition of iron in the liver, pancreas, skin, hypophysis, gonad and other organs and tissues of the whole body and is manifested as cirrhosis, diabetes, skin pigmentation, and low libido. Physicians of our country have inadequate understanding and familiarity with this disorder. Both the European Association for the Study of the Liver and the American Association for the Study of Liver Diseases have issued guidelines for the diagnosis and treatment of hemochromatosis, but these two guidelines are complicated and difficult for Chinese clinical physician to comprehend. In 2018, Hepatology International published therapeutic recommendations in HFE hemochromatosis for p.Cys282Tyr homozygous genotype developed by Hemochromatosis International, these recommendations were objective, simple, and practical. We believe the above-mentioned guideline is understandable and helpful for clinicians and patients without medical education background. Therefore, herein the recommendations are translated into Chinese language, with a view to being able to be clinical work guide for the majority of Chinese hepatologists.
2.
Rare coding variants and X-linked loci associated with age at menarche.
Lunetta, KL, Day, FR, Sulem, P, Ruth, KS, Tung, JY, Hinds, DA, Esko, T, Elks, CE, Altmaier, E, He, C, et al
Nature communications. 2015;:7756
Abstract
More than 100 loci have been identified for age at menarche by genome-wide association studies; however, collectively these explain only ∼3% of the trait variance. Here we test two overlooked sources of variation in 192,974 European ancestry women: low-frequency protein-coding variants and X-chromosome variants. Five missense/nonsense variants (in ALMS1/LAMB2/TNRC6A/TACR3/PRKAG1) are associated with age at menarche (minor allele frequencies 0.08-4.6%; effect sizes 0.08-1.25 years per allele; P<5 × 10(-8)). In addition, we identify common X-chromosome loci at IGSF1 (rs762080, P=9.4 × 10(-13)) and FAAH2 (rs5914101, P=4.9 × 10(-10)). Highlighted genes implicate cellular energy homeostasis, post-transcriptional gene silencing and fatty-acid amide signalling. A frequently reported mutation in TACR3 for idiopathic hypogonatrophic hypogonadism (p.W275X) is associated with 1.25-year-later menarche (P=2.8 × 10(-11)), illustrating the utility of population studies to estimate the penetrance of reportedly pathogenic mutations. Collectively, these novel variants explain ∼0.5% variance, indicating that these overlooked sources of variation do not substantially explain the 'missing heritability' of this complex trait.
3.
A novel tri-allelic mutation of TMPRSS6 in iron-refractory iron deficiency anaemia with response to glucocorticoid.
Nie, N, Shi, J, Shao, Y, Li, X, Ge, M, Huang, J, Zhang, J, Huang, Z, Li, D, Zheng, Y
British journal of haematology. 2014;(2):300-3