Oogenesis and folliculogenesis are key steps in reproduction leading to preservation of species. Oocytes are generated from primordial germ cells, mature in the ovaries, and full-grown oocytes are ovulated into oviducts. In vertebrates, follicle maturation is regulated by both the hypothalamus– pituitary–gonad (HPG) axis and the HPG axis-independent process. The former is initiated after pubert...

Merkezi sinir sistemi içerisinde nörotransmitter ve nöromodülatör etkiye sahip histamin, davranış durumunun, biyolojik ritmin, vücut ağırlığının, enerji metabolizmasının, termoregülasyonun, sıvı dengesinin, stresin üremenin düzenlenmesinde anahtar role sahiptir. Histaminin merkezi akut enjeksiyonlarının hipotalamo-hipofizer-gonadal (HPG) aks etkili olduğunu histaminin H1 H2 reseptör-lerinin bu ...

Copyright: © 2012 Asimakopoulos B. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The structure and the function of the Hypothalamus-PituitaryGonadal (HPG) axis is an integral part of the knowledge on the phy...

Convergent syntheses of polyglycerol hyperbranched polymers containing fluorescent labels (fluorescein or perylene diimide (PDI)) at their core are presented. The hyperbranched polyglycerol (HPG) precursors were synthesized using a one step polymerization reaction wherein the initiator leaves a single reactive group for dye functionalization. For further site isolation, allylated HPG was synthe...

درطول تاریخ، قرآن با انگیزه‌ واهداف متعددی ترجمه و بازترجمه شده‌است. آغازقرن بیستم وتداوم نگرش علمی محققانه درحوزۀ اسلام شناسی قرن هجدهم نوزدهم میلادی، شرق شناسان دین‌پژوه بمنظورمقابله دیدگاه‌های غرض ورز ترجمه‌های‌غیرعلمی سده های قبل، به بازترجمه‌های‌علمی وکاربردی مبادرت کردند. ازجمله ترجمه‌های شاخص حاضرمی توان هارتموت بوبتسین شناس ودین پژوه آلمانی اشاره کرد که بصورت مستقیم ازاصل عربی زبان . یک...

Kisspeptin is a potent activator of GnRH-induced gonadotropin secretion and is a proposed central regulator of pubertal onset. In mice, there is a neuroanatomical separation of two discrete kisspeptin neuronal populations, which are sexually dimorphic and are believed to make distinct contributions to reproductive physiology. Within these kisspeptin neuron populations, Kiss1 expression is direc...