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Full-Text Articles in Medicine and Health Sciences
Luteinizing Hormone And Alzheimer’S Disease: Impact And Possibilities Of Treatment, Rachel Walkin
Luteinizing Hormone And Alzheimer’S Disease: Impact And Possibilities Of Treatment, Rachel Walkin
The Science Journal of the Lander College of Arts and Sciences
Alzheimer’s disease is a common neurodegenerative disease that is the 6th leading cause of death in the United States. An estimated 5 million Americans are afflicted nationwide and the cost to the economy is valued at 259 billion dollars. Additionally, unlike other major causes of death in the United States, there is no treatment for Alzheimer’s Disease. Alzheimer’s is a progressive disease and it is strongly tied to aging. In most cases symptoms make their first appearance in the late 60’s and gradually worsen, eventually leading to a loss of cognitive function and death. The two outstanding changes in the …
The Hormones Of The Placenta, Shaya Oratz
The Hormones Of The Placenta, Shaya Oratz
The Science Journal of the Lander College of Arts and Sciences
The human pregnancy begins with fertilization and implantation. As the embryo evolves and develops within the uterus of the mother, the placenta is formed. The placenta is a transient organ that develops to meet and accommodate specific needs during pregnancy. Its two major functions are the exchange of nutrients and gases between the mother and fetus and its role as an endocrine unit. Through the production and release of many hormones the placenta works to regulate the many necessary physiological changes in the mother in order to maintain the pregnancy, meet the needs of the developing fetus and prepare the …
Do Photoperiodic Changes In Melatonin Secretion Detrimentally Affect The Female Reproductive Cycle?, Riki Szlafrok
Do Photoperiodic Changes In Melatonin Secretion Detrimentally Affect The Female Reproductive Cycle?, Riki Szlafrok
The Science Journal of the Lander College of Arts and Sciences
Melatonin, better known as "the hormone of darkness," is secreted by the pineal gland during the night and helps us fall asleep. Because its internal regulation depends on light, melatonin is part of chronobiology, the study of biological mechanisms and their adaptations to lunar and solar related rhythms (Klein et al. 1991). Therefore, photoperiod changes greatly impact melatonin concentration, influencing changes in neuronal and hormonal mechanisms of the photo neuro-endocrine systems, namely reproduction. Research has shown that a disruption in the circadian rhythm of melatonin due to photoperiod changes detrimentally affects the rhythmic function of the female reproductive cycle. Research …
Melatonin And Its Effect On Learning And Memory, Nechama Leah Bauman (Cahn)
Melatonin And Its Effect On Learning And Memory, Nechama Leah Bauman (Cahn)
The Science Journal of the Lander College of Arts and Sciences
Melatonin is a neurohormone produced by the pineal gland and secreted into the body in a circadian rhythm. Melatonin is known to be involved in many vital body functions, including sleep, reproduction, and immune response. Exogenous melatonin, sold as over the counter natural supplements in drugstores, is commonly taken by many people to help cure various ailments. Melatonin also plays a role in the hippocampus. This paper investigates the effects of melatonin on long-term potentiation in the hippocampus. Long-term potentiation, described as a long-lasting strengthening of synapses between nerve cells, is thought to be responsible for long-term memory retention. It …
The Effect Of Melatonin On The Ovaries, Jaclyn Starr
The Effect Of Melatonin On The Ovaries, Jaclyn Starr
The Science Journal of the Lander College of Arts and Sciences
Melatonin is a very small molecule whose effects can be both detrimental and beneficial to the ovaries depending on its concentration. Too much of anything is usually not good and so is the case with melatonin. Very high doses can be damaging, but in the right amount melatonin may be able to combat various diseases and increase the chances for fertility in women.
The Role Of Ghrelin And Leptin In Obesity: Is Exogenous Administration Of These Hormones A Possible Drug Therapy?, Peri Eckstein
The Role Of Ghrelin And Leptin In Obesity: Is Exogenous Administration Of These Hormones A Possible Drug Therapy?, Peri Eckstein
The Science Journal of the Lander College of Arts and Sciences
Ghrelin and leptin are two hormones that have been recognized to have a major influence on energy balance. Leptin is a mediator of long term regulation of energy balance, suppressing food intake and thereby inducing weight loss. Ghrelin, on the other hand, is a fast acting hormone, playing a role in meal initiation. As a growing number of people suffer from obesity, understanding the mechanisms by which various hormones and neurotransmitters influence energy balance has been a subject of intense research. This paper provides background on leptin and ghrelin hormones, their role in food intake and body weight in humans, …
Vitamin D3, Aryeh Grossman
Vitamin D3, Aryeh Grossman
The Science Journal of the Lander College of Arts and Sciences
The following is the introduction of this article: Vitamin D is the only vitamin that is free. It can be easily obtained from exposure to sunlight and yet more than 60% of Americans are Vitamin D deficient (Ginde et al., 2009; Bones, Vitamin D, and Calcium, n.d). The significance of Vitamin D can’t be emphasized enough and is often overlooked. Some its profound effects are apparent in the prevention of various diseases such as cancer, multiple sclerosis, and cardiovascular disease et cetera. Many lives can be spared each year just by taking Vitamin D. From cancer alone, 23,000 deaths can …