منابع مشابه
Transgenerational epigenetic inheritance: more questions than answers.
Epigenetic modifications are widely accepted as playing a critical role in the regulation of gene expression and thereby contributing to the determination of the phenotype of multicellular organisms. In general, these marks are cleared and re-established each generation, but there have been reports in a number of model organisms that at some loci in the genome this clearing is incomplete. This ...
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The recent Zika virus (ZIKV) outbreak has been declared a Public Health Emergency of International Concern (PHEIC) by the World Health Organization in February 2016. It started in Brazil in 2015, rapidly spread through South and Central America, and is expected to reach the continental US in the summer of 2016. The appearance of ZIKV has been connected with an increase in cases of microcephaly ...
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BACKGROUND Bacterial vaginosis is the commonest cause of abnormal vaginal discharge in women of reproductive age and is associated with serious pregnancy related sequelae and increased transmission of sexually transmissible infections, including HIV. The aetiology, pathology, microbiology and transmission of bacterial vaginosis remain poorly understood. OBJECTIVE This article discusses the pr...
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Bone morphogenetic proteins (BMPs) belong to the TGF-β superfamily and were first discovered as potent bone homeostasis regulators for their ability to induce endochondral bone formation, ectopic bone formation and fracture repair. A preeminent role of BMP signaling in developmental control of cell type specification, differentiation and organogenesis is also well established. More recently, a ...
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Laryngopharyngeal reflux (LPR), an extraesophageal variant of gastroesophageal reflux disease, is associated with hoarseness, chronic cough, throat-clearing, sore throat, and dysphagia. But because these symptoms are nonspecific, laryngoscopy is often done and the diagnosis of LPR is considered if edema, erythema, ventricular obliteration, pseudosulcus, or postcricoid hyperplasia is noted. Most...
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ژورنال
عنوان ژورنال: Nature
سال: 1991
ISSN: 0028-0836,1476-4687
DOI: 10.1038/354174a0