Luteinizing hormone

Endocrine System The endocrine system is basically the network of glands that secrete hormones into the blood stream which regulates activities of cells or organs. The sexual development and function of the body and the metabolism are two examples of what the endocrine systems does. The major contributors to the endocrine system include the pituitary gland, thyroid, hypothalamus, parathyroid, adrenal glands, pineal body, reproductive glands, and the pancreas. The pituitary gland is…

elevated cortisol level is unknown, but it may be involved with loss of bone density in anorexia nervosa(Lo Sauro et al., 2008). Alterations in growth hormone are also present in anorexia nervosa. Levels are more often elevated, but levels of insulin like growth factor (IGF-1) are decreased, indicative of growth hormone resistance. Antidiuretic hormone levels may also be low in anorexia nervosa which may rarely result…

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 the pituitary gland which in turn stimulate the gonads. This process ultimately leads to the development of secondary sexual characteristics. The starting point for 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…

an array of hormones once it receives signals from the hypothalamus. These hormones are responsible for regulating the activities of the other glands, such as prolactin, which is involved in milk production, adrenocorticotropic hormone which responds to stress through a stimulation of the epinephrine, hormone responsible for the stimulation of thyroid, as well as the luteinizing hormone, which regulates ovulation timing and promotes sperm and egg development, follicle-stimulating hormone and sex…

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 calls and presented a rise in corticosterone in…

According to WHO (World Health Organization) adolescence is the period that happens between the ages of 10 to 19 in which human growth and development occurs. Throughout the life span, adolescence signifies an important transition from childhood, as it is a period of ‘newness’ and change, which can be seen in the person, the dyad and the environment’. Linda P Spear supports this as she defines adolescence as ‘a period of physical, psychological and social transition between childhood and…

The stages of human life Every human being born, grows, matures, grows old and dies. These stages are a process of continuous physical, psychological and intellectual changes. It is an irreversible and permanent evolution of changes, our body has stages of growth, maturation and degeneration. The stage of Infancy or childhood is an important stage of development, in which many skills, such as speaking, reading and understanding acquired ideas. During this period children become more precise in…

electrical signal is triggered the nerve cell will secrete a chemical, the neurotransmitter, which will diffuse across the synapse. The synapse is a compact space between the target cell and the nerve cell. Hormonal Signaling Endocrine cells secrete hormones into the blood vessel, which then send them to target cells. For any cell signaling and response to happen, a specific cell must send a molecule to a target cell. Stages of Cell Signaling Cell signaling is split into three different stages…

exhibit sex differences. For example, a higher proportion of somatotrope cells respond to growth hormone releasing hormone (GHRH) in males than in females (71). It is possible that something similar may be happening with the gonadotrope population due to expression of ICAM5. Also, cell networks can be regulated by hormonal mechanisms because gonadectomy alters the responsiveness of cells to GHRH, including hormone release and cell motility (71, 72). In gonadotropes, GnRH treatment leads to an…