TAILIEUCHUNG - SOCIAL AND PSYCHOLOGICAL ASPECTS OF HIV/AIDS AND THEIR RAMIFICATIONS

The Hypothalamushypophysis- gonadal (HPG) axis is subject to both positive feed-forward and negative feedback regulation at several levels. At the level of the hypothalamus, early recognition of the pulsatile nature of gonadotropin releasing hormone secretion led to the notion of a central ‘‘pulse generator”, the inherent oscillatory activity of which controls the secretory rhythm of GnRH neurons (Knobil, 1980). Hypothalamic pulse generator is extensively modulated by a multitude of higher level inputs including photoperiod, environmental stress, metabolic state and nutritional status, as well as various endocrine mediators. . | SOCIAL AND PSYCHOLOGICAL ASPECTS OF HIV AIDS AND THEIR RAMIFICATIONS Edited by Gobopamang Letamo Social and Psychological Aspects of HIV AIDS and Their Ramifications Edited by Gobopamang Letamo Published by InTech Janeza Trdine 9 51000 Rijeka Croatia Copyright 2011 InTech All chapters are Open Access distributed under the Creative Commons Attribution license which permits to copy distribute transmit and adapt the work in any medium so long as the original work is properly cited. After this work has been published by InTech authors have the right to republish it in whole or part in any publication of which they are the author and to make other personal use of the work. Any republication referencing or personal use of the work must explicitly identify the original source. As for readers this license allows users to download copy and build upon published chapters even for commercial purposes as long as the author and publisher are properly credited which ensures maximum dissemination and a wider impact of our publications. Notice Statements and opinions expressed in the chapters are these of the individual contributors and not necessarily those of the editors or publisher. No responsibility is accepted for the accuracy of information contained in the published chapters. The publisher assumes no responsibility for any damage or injury to persons or property arising out of the use of any materials instructions methods or ideas contained in the book. Publishing Process Manager Alenka Urbancic Technical Editor Teodora Smiljanic Cover Designer Jan Hyrat Image Copyright Sebastian Kaulitzki 2011. Used under license from First published September 2011 Printed in Croatia A free online edition of this book is available at Additional hard copies can be obtained from orders@ Social and Psychological Aspects of HIV AIDS and Their Ramifications Edited by Gobopamang Letamo p. cm. ISBN 978-953-307-640-9 ikrrr iJ OPEN

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