نتایج جستجو برای: hyperphagia
تعداد نتایج: 1289 فیلتر نتایج به سال:
Improved metabolic phenotype of hypothalamic PTP1B-deficiency is dependent upon the leptin receptor☆
Protein tyrosine phosphatase 1B (PTP1B) is a known regulator of central metabolic signaling, and mice with whole brain-, leptin receptor (LepRb) expressing cell-, or proopiomelanocortin neuron-specific PTP1B-deficiency are lean, leptin hypersensitive, and display improved glucose homeostasis. However, whether the metabolic effects of central PTP1B-deficiency are due to action within the hypotha...
The ventral hypothalamus acts to integrate visceral and systemic information to control energy balance. The basic helix-loop-helix transcription factor neurogenin-3 (Ngn3) is required for pancreatic β-cell development and has been implicated in neuronal development in the hypothalamus. Here, we demonstrate that early embryonic hypothalamic inactivation of Ngn3 (also known as Neurog3) in mice re...
Prader-Willi syndrome (PWS) is the predominant genetic cause of obesity in humans. Recent clinical reports have suggested that micro-deletion of the Snord116 gene cluster can lead to PWS, however, the extent of the contributions of the encoded snoRNAs is unknown. Here we show that mice lacking Snord116 globally have low birth weight, increased body weight gain, energy expenditure and hyperphagi...
To the Editor: Congenital human leptin deficiency is a rare genetic syndrome resulting in severe hyperphagia and early onset obesity. It was first reported in 1997 in two cousins from Pakistan (1). Here, we report an 8-year-old morbidly obese Indian girl with severe hyperphagia carrying a novel homozygous mutation in the leptin (LEP ) gene. The proband was born at term to consanguineous parents...
Prader-Willi syndrome is a genomic imprinting disorder, characterized by obesity, hyperphagia, mental retardation, short stature and hypogonadism. The presenting signs and symptoms depend upon the age at which the patient is seen. Here we report a case of Prader-Willi syndrome, who presented at 16 years of age with diabetes mellitus and cryptorchidism.
This is a report of FMR1 premutation with Prader-Willi phenotype (PWP) and FXTAS. Although the PWP is common in fragile X syndrome (FXS), it has never been described in someone with the premutation. The patient presented intranuclear inclusions, severe obesity, hyperphagia, and ADHD symptoms, typical of the PWP in FXS. In addition, the autopsy revealed multiple architectural cortical abnormalit...
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