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Chapter 16
Chapter 16

... • HIV causes AIDS, the last stage of an HIV infection, in which the helper T cell count is low and the immune system is compromised leading to a suite of opportunistic infections • No cure but there is a treatment called highly active antiretroviral therapy (HAART) that can limit HIV reproduction ...
Are there specific genetic defects affecting the male reproductive tract?
Are there specific genetic defects affecting the male reproductive tract?

... external genitalia, low testosterone and high LH levels, normal FSH concentrations and absence of secondary sex characteristics, but do not have breast development at puberty. The low testosterone levels and absence of breast development distinguish these subjects from those with complete androgen i ...
Ghrelin inhibits visceral afferent activation of catecholamine neurons
Ghrelin inhibits visceral afferent activation of catecholamine neurons

... Brainstem A2/C2 catecholamine (CA) neurons in the solitary tract nucleus (NTS) are thought to play an important role in the control of food intake and other homeostatic functions. We have previously demonstrated that these neurons, which send extensive projections to brain regions involved in the re ...
Female Reproductive System
Female Reproductive System

... production of sperm and sex hormones in the testes.  Anterior pituitary produces and stores: The anterior pituitary produces six major hormones, and the posterior pituitary stores two hormones originating in the hypothalamus. The pituitary's target endocrine glands are the thyroid, adrenal gland, a ...
Slayt 1 - SCIS Teachers
Slayt 1 - SCIS Teachers

... -stimulates endometrium to increase thickness (prepares it self for the implantation of embryo) -stimulate pituitary gland to inhibit secretion of FSH, and LH. 3- Low level of FSH and LH degenerate corpus luteum, so progesterone level decreases. 4- New cycle starts with menstrual period which endome ...
Role of Melatonin and/or Vitamin B Complex against Hormonal
Role of Melatonin and/or Vitamin B Complex against Hormonal

... adjust its physiological activity accordingly. A direct communication between the pineal gland and the adrenal gland which produce a number of different hormones that influence virtually all of the major processes in the body (Kanchev et al., 2006). Exogenous melatonin can restrain excitability of h ...
doc Lecture 5-8
doc Lecture 5-8

... Thyroid hormone receptors Located throughout the brain with highest density in the cerebellum, limbic system and brain stem. Close interaction with adrenergic receptors. In the brain, thyroid hormones perhaps act as neuromodulators within the adrenergic system. Thyroid hormones and brain development ...
The Journal of Neuroscience, June 1, 2003 • 23(11):4657– 4666
The Journal of Neuroscience, June 1, 2003 • 23(11):4657– 4666

... Ilan A. Kerman1,2,3 Lynn W. Enquist,4 Stanley J. Watson,3 and Bill J. Yates Previous physiological investigations have suggested the existence of a neural circuit that coordinates activation of motor and autonomic efferents before or at the onset of exercise. Traditionally these circuits have been p ...
' The  testosterone  metabolism of  Neomysis shrimp?
' The testosterone metabolism of Neomysis shrimp?

... J. Plateautraat 22, 8-9000 Gent, Belgium ...
- Iranian Journal of Veterinary Research
- Iranian Journal of Veterinary Research

... sperm in the lumen of seminiferous tubules was decreased significantly in hypothyroid rats and increased in hyperthyroid rats in comparison with the control group rats. It was shown that thyroid hormone receptor expresses in the germ cells from spermatogonia to primary spermatocytes (Buzzard et al., ...
Role of Sex and Sex Hormones in Autoimmune Disease
Role of Sex and Sex Hormones in Autoimmune Disease

... Hedstrom, Neurology 2014)  In children: one study found an effect of obesity in girls but ...
click here
click here

... the crown of the scalp and widening through the central hair part Estrogen and Androgen receptors have been found in hair follicles At menopause, there is a decrease in protective effect of estrogen and a change in the estrogen to androgen ratio (as levels of androgens do not significantly change) ...
The Mitogen Activated Protein Kinase Pathway may Mediate
The Mitogen Activated Protein Kinase Pathway may Mediate

... regulate sexual behavior of female rodents. In the VTA, where intracellular progestin receptors are virtually nonexistent, progestins may have actions via second messenger pathways, such the mitogen activated protein kinase (MAPK) pathway. The effects of bilateral infusions to the VTA of the MAPK an ...
Correlation among corpus allatum volume, cell size, and juvenile
Correlation among corpus allatum volume, cell size, and juvenile

... size of CA cells has been measured directly in glands that were dissociated into cell suspensions; such cells from B. gurnunicu CA retain their capacity to synthesize JH at normal rates in vitro [ 181. In three cockroach species cells from active CA were significantly larger than cells from inactive ...
ATHON - Cordis
ATHON - Cordis

... chlorinated NDL-PCBs induced hepatic PROD activity in a sex-specific way. The studied PCBs were classified according to CYP induction pattern into CAR inducers such as PCB52, CAR/PXR mixed type inducers such as PCBs 101, 153 and 180 and CAR/PXR plus weak AhR inducers such as PCB 138. PCB 28 did not ...
Effect of metronidazole on spermatogenesis and FSH, LH and
Effect of metronidazole on spermatogenesis and FSH, LH and

... metronidazo le treated groups as compared to saline treated controls was observed. In proportion , the percentage of diploid and tetraploid cells was increased in metronid azo le treated group. Al so observed a significant reduction in mean serum FSH, LH and testostero ne (P < 0.00 I) levels in trea ...
26_1986 Wasilewska
26_1986 Wasilewska

... In the present study, we observed that with the increment of the volume of the St and GP, the numerical density of the cell population of these structures decreases. The presence of the negative correlation between the volume of given structure and the average numerical density of the cell populatio ...
CAST
CAST

... changes of hippocampus neurons. ...
human reproduction
human reproduction

... largest cell of the body (with a diameter of about 0.5 mm) ...
Cardiodynamics - Seattle Central College
Cardiodynamics - Seattle Central College

... • Heart rate = HR (beats/min) • Starlings law: the degree to which the ventricular walls are stretched by returning blood determines the stroke volume (more in = more out) ...
Connections of the Hypothalamus
Connections of the Hypothalamus

... Schematic diagram of the peripheral stimuli known to elicit coordinated and preferential release of oxytocin and vasopressin from hypothalamic magnocellular neurons, as well as the resultant effect of these hormones on distant target organs. (Sawchenko). ...
Evaluation of the Rate of Evolution in Natural Populations of Guppies
Evaluation of the Rate of Evolution in Natural Populations of Guppies

... explanation for the difference in the heritabilities of male and female traits is that some of the genetic variation for these traits in males is associated with the Y chromosome, as reported for other species of Poeciliid fishes (16). The genetic correlations between age and size at maturity (males ...
2. Physiology of the testis 2015
2. Physiology of the testis 2015

... a) Testosterone  Major hormone produced by the Leydig cells  More than 98% of it is bound to plasma proteins & 2% unbound. b) Dihydrotestosterone  Only 20% of dihydrotestosterone is synthesized in testis.  80% from the peripheral conversion of testosterone.  Dihydrotestosterone is 2 times activ ...
Hypothalamus
Hypothalamus

... Its functional significance is disproportionate to its size. It has been considered as the head nucleus of the ANS as it is the principle autonomic center in the brain. ...
Ch 11 lec 1
Ch 11 lec 1

... Pelphrey et al., 2003 had people watch an animated cartoon of a face. When the direction of gaze changed, increased activity was seen in the right STS an ...
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Sexually dimorphic nucleus

The sexually dimorphic nucleus (SDN) is an ovoid, densely packed cluster of large cells located in the medial preoptic area (POA) of the hypothalamus which is believed to be related to sexual behavior in animals.Thus far, for all species of mammals investigated, the SDN has been repeatedly found to be considerably larger in males than in females. The volume of the SDN was 2.2 times as large in males as in females and contained 2.1 times as many cells. The human SDN was elongated in females and more spherical in males. No sex differences were observed in the human SDN in either cell density or mean diameter of the cell nuclei. The volume and cell number of the human SDN considerably decreases with age; although, the decrease in cell number is both sex and age-specific. In males, a substantial decrease in the cell number of the human SDN was observed between the age of 50-60 years. Cell death was more common in females than males, especially among those older than 70 years of age. The SDN cell number in females can drop to 10-15% that found in early childhood.SDN and its homologues exist widely in human, mammal, and some other animal brains, including: the third interstitial nucleus of the anterior hypothalamus (INAH3) in humans; ovine sexually dimorphic nucleus (oSDN) in the medial preoptic area/anterior hypothalamus (MPOA/AH) in sheep; sexually dimorphic nucleus in the preoptic area (SDN-POA) in rats; anterior hypothalamic nucleus (AHdc) in macaques; specific area in medial preoptic nucleus (POM) in quails; etc.↑ ↑ ↑ ↑
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