Human physiology is the science of the mechanical, physical, and biochemical functions of humans in good health, their organs, and the cells of which they are composed. The principal level of focus of physiology is at the level of organs and systems. Most aspects of human physiology are closely homologous to corresponding aspects of animal physiology, and animal experimentation has provided much of the foundation of physiological knowledge. Anatomy and physiology are closely related fields of study: anatomy, the study of form, and physiology, the study of function, are intrinsically tied and are studied in tandem as part of a medical curriculum.
A study in the Feb. 1 issue of the journal SLEEP suggests that healthy older adults without sleep disorders can expect to have a reduced "sleep need" and to be less sleepy during the day than healthy young adults.
(Garrison, NY) The latest issue of the Hastings Center Report features articles on "medicalized" weapons that temporarily incapacitate targets, sharing the benefits of newly found biological resources, and applications of GINA (the Genetic Information Nondisclosure Act).
The number of underrepresented minorities among U.S. medical school faculty remains low, even as the U.S. population becomes increasingly diverse.
Many of the health benefits of aerobic exercise are due to the most recent exercise session (rather than weeks, months and even years of exercise training), and the nature of these benefits can be greatly affected by the food we eat afterwards, according to a study published in the Journal of Applied Physiology (http://jap.physiology.org).
In contrast, couples who emphasized their "separateness" by using pronouns such as "I," "me" and "you" were found to be less satisfied in their marriages. This was especially true for older couples. Their use of separateness pronouns was most strongly linked to unhappy marriages, according to the study.
The team identified beta-sitosterol - a steroid that can inhibit the absorption of cholesterol in the intestine - as the main constituent of pomegranate seed extract. The research suggests that pomegranate extract could be used as a natural stimulant to encourage the uterus to contract during labour.
Researchers trying to restore vision damaged by disease have found promise in a tiny implant that sows seeds of new cells in the eye.
What does evolution - a field that often deals with changes over many generations - have to do with preventing and treating disease in our lifetime?
A type of antibiotic that can cause hearing loss in people has been found to paradoxically protect the ears when given in extended low doses in very young mice.
A new study has found that Vitamin D, readily available in supplements or cod liver oil, can counter the effects of Crohn's disease. John White, an endocrinologist at the Research Institute of the McGill University Health Centre, led a team of scientists from McGill University and the Universit- de Montr-al who present their findings about the inflammatory bowel disease in the latest Journal of Biological Chemistry.
Two new studies by researchers at the University of Washington further our understanding of the molecular steps in the PLC cascade, a G protein-coupled receptor signaling mechanism that underlies a wide variety of cellular processes, including egg fertilization, hormone secretion, and the regulation of certain potassium channels.
Antioxidants increasingly have been praised for their benefits against disease and aging, but recent studies at Kansas State University show that they also can cause harm.
Curemark, LLC, a drug research and development company focused on the treatment of neurological diseases, announced that the company is now enrolling patients in Phase III clinical trials for CM-AT, its autism treatment, at ten sites across the country.
Jamaican sprinter Usain Bolt's record-setting performances have unleashed a wave of interest in the ultimate limits to human running speed. A new study published in the Journal of Applied Physiology offers intriguing insights into the biology and perhaps even the future of human running speed.
Retinoblastoma is a pediatric eye cancer initiated by the loss or mutation of both copies of the retinoblastoma gene. Current evidence suggests that additional genetic alterations are required for retinoblastoma to become fully malignant.
People with chronic-obstructive pulmonary disease (COPD) often find themselves in a downward spiral when it comes to their health. COPD, which includes chronic bronchitis and emphysema, means that the elasticity of the lungs is destroyed.
Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, today announced the publication of new data in the journal Nature Biotechnology by Alnylam scientists and collaborators from Tekmira Pharmaceuticals Corporation, AlCana Technologies, Inc., and The University of British Columbia (UBC). The new study employed a rational design approach for the discovery of novel lipids that can be incorporated into lipid nanoparticles (LNPs) for systemic delivery of RNAi therapeutics.
Gently rocking embryos while they grow during in vitro fertilization (IVF) improves pregnancy rates in mice by 22 percent, new University of Michigan research shows. The procedure could one day lead to significantly higher IVF success rates in humans.
University at Buffalo researchers are the first to show that a controlled individualized exercise training program can bring athletes and others suffering with post-concussion syndrome (PCS) back to the playing field or to their daily activities.
Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, today announced that it presented data from multiple pre-clinical and clinical programs at the “RNA Silencing: Mechanism, Biology, and Application” Keystone Symposium held January 14-19, 2010 in Keystone, Colorado. Alnylam and its collaborators presented data from Alnylam’s therapeutic programs including transthyretin (TTR)-mediated amyloidosis and Huntington’s disease, as well as new data on delivery approaches for the systemic delivery of RNAi therapeutics.
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