S01876886 UI317-01 Assignment #3: Reflections 1. Hormones and the brain are powerful influences on human sexual functioning. Perhaps two of the most important portions of the brain in terms of sexual functioning are the hypothalamus and the pituitary gland, which make up the HPG axis. The HPG axis consists of the hypothalamus, pituitary gland, and the gonads – gonads being the testes in males and the ovaries in females. Together, the HPG axis regulates sex hormone production in a negative feedback loop. Three important hormones that are produced from this process are follicle-stimulating (FSH) hormone; luteinizing hormone (LH); and gonadotropin-releasing hormone (GnRH.) These hormones help to regulate the pituitary gland’s production of…
Puberty is considered to be a period of transition consisting of both physiological and morphological changes when an individual becomes a fecund adult from a juvenile. All mammals undergo puberty (1) although the precise timing of this event is different for each species. Pubertal onset, in mammals, is governed by the pulsatile release of gonadotropin-releasing hormone (GnRH) from the hypothalamus. GnRH promotes secretion of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from…
Lymphocytic Choriomeningitis virus (LCMV) belongs to the Old World arenavirus family of enveloped viruses (Buchmeier et al., 2007). LCMV in particular has served as model organism from many significant studies in the field of immunology such as the Nobel Prize winning study of the Major Histocompatibility Complex (MHC) by Zinkernagel and Doherty (1975). LCMV’s natural reservoirs are the common household rodents (Traub, 1936). Household mice have shown to attain persistent asymptomatic LCMV…
Glucocorticoids are steroid hormones which are produced predominantly in response to stress in the adrenal gland (Davis & Sandman 2010; Korgun et al. 2012). The physiological effects of glucocorticoids occur when the hormone are bind to, and mediated by the glucocorticoid receptor (Erhuma 2012). It plays a wide range of vital physiological roles that are necessary for healthy implantation and pregnancy processes (Korgun et al. 2012). As glucocorticoids are critical in the regulation of the…
synthetic decapeptide hormone which falls under the gonadotropin-releasing hormone agonist (GnRH agonist) utilized as the pamoates or acetate salts. GnRH is Triptorelin (GnRH) initiates persistent stimulation of the pituitary glands and therefore leads to a decline in the levels of follicle stimulating hormone (FSH) and gonatropins luteinizing hormone (LH) secreted by the pituitary gland. It achieves this function by over stimulating the body’s production of these hormones hence leading to a…
Helen E. FisherPh.D. , states that “the three emotional systems lust, attraction, and attachment are somewhat disconnected in human beings...” (Fisher, 2000). I am strongly going to agree with that theory. The emotional systems of men are timed with biological reproduction abilities and driven by hormones or the lack of them hormones such as Testosterone, Vasopressin and Estrogen. Gender behavior patterns that are instilled in men such as not showing emotion such as through crying and through…
such as, estrogen levels in women, body mass index in different races of men, one study sought to figure out who is more likely to develop colon cancer. Other studies aim to understand what specific effects one’s diet has concerning colon cancer. One research group evaluated the correlation between high intakes of plant foods and fiber and people who developed colon cancer. Another study focused on antioxidant and DNA methylation-related nutrients and risk of distal colorectal cancer. While…
Epoprostenol • Definition of epoprostenol (Flolan). - Epoprostenol belongs to some hormones which present in the body naturally called prostaglandins. - It is derived from arachidonic acid . This medication is taken by a continuous injection in the vein by the use of an infusion pump . - Generic Name: Epoprostenol sodium - Brand Name : Flolan Fig. 1 Chemical structure of epoprostenol • During comparison between two GPs of patients with PPH.one of them are treated with…
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A comparative study done by McGraw & Young (2010) used voles as subjects, because of their distinct social behavior. They showed that prairie vole pups, which are part of monogamous species, react to social isolation with ultrasonic calls as well as an increase in corticosterone level, which is a hormone involved in stress responses. On the other hand, montane vole pups, which are promiscuous species, did not respond to social isolation as a stressor, but on the contrary did produce ultrasonic…