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.
Low levels of vitamin D are known to nearly double the risk of cardiovascular disease in patients with diabetes, and researchers at Washington University School of Medicine in St. Louis now think they know why.
Exciting research into Brown adipose tissue (BAT) — brown fat, which is found in abundance in hibernating animals and newborn babies — could lead to new ways of preventing obesity.
A new study finds that young muskoxen conserve heat almost as well as adults, a finding that runs contrary to a longstanding assumption among scientists that young animals should be more vulnerable in extreme cold. The study, by biologist Adam Munn from the University of Sydney, Australia, will be published in the forthcoming issue of Physiological and Biochemical Zoology.
Success in soccer sometimes comes with "bending it like Beckham." Success in cellular fusion - as occurs at the moment of conception and when nerve cells exchange neurotransmitters - requires that a membrane be bent before the merging process can begin, University of Wisconsin-Madison researchers have shown.
A new blood test, measuring the level of omega-3 fatty acids in red blood cells, is now broadly available for the first time to the public everywhere as a consumer-friendly, at-home "finger stick" test. While scientists have long known of the benefits of fish and fish oil for overall heart health, over the past decade research has proven that the omega-3 fatty acids found in fish dramatically reduce one's risk for cardiovascular disease. Further, recent research indicates that omega-3 levels may be among the best predictors of future coronary heart disease - providing much stronger correlations to the risk of sudden cardiac death than traditional indicators, including HDL and LDL cholesterol.
Scientists at Michigan State University have found exposure to the hormone progesterone activates genes that trigger inflammation in the mammary gland.
Following a shift in its business model from developing proprietary pain therapy products to pure contract research, Algos Therapeutics has changed its name to Algos Preclinical Services. The company's new tagline, "Expertise in pain. Legendary service. Definitive results. For better quality of life." reinforces its repositioning as the go-to-CRO (Contract Research Organization) for drug discovery and product development.
Computational biologists at Carnegie Mellon University have developed an analytical technique to detect the multiple genetic variations that contribute to complex disease syndromes such as diabetes, asthma and cancer, which are characterized by multiple clinical and molecular traits.
A combination of proteins in the cerebrospinal fluid can reliably identify which patients with early symptoms of dementia will subsequently develop full-blown Alzheimer's disease, a research team at the University of Gothenburg, Sweden, has found in a major international study. The results were published in this week's edition of the Journal of the American Medical Association (JAMA).
The U.S. Patent and Trade Office (USPTO) plans to announce patent award approval on August 11 to Dimera Incorporated for treatment of symptoms of Peripheral Arterial Disease (PAD), which is alternatively known as Peripheral Vascular Disease (PVD).
Researchers at the Georgia Institute of Technology, collaborating with pediatric cardiologists and surgeons at The Children's Hospital of Philadelphia, have developed a tool for virtual surgery that allows heart surgeons to view the predicted effects of different surgical approaches. By manipulating three-dimensional cardiac magnetic resonance images of a patient's specific anatomy, physicians can compare how alternative approaches affect blood flow and expected outcomes, and can select the best approach for each patient before entering the operating room.
In a study published online in advance of print in Stem Cells, Tufts researchers report that the STAT3 gene regulates cancer stem cells in brain cancer. Cancer stem cells have many characteristics of stem cells and are thought to be the cells that drive tumor formation. The researchers report that STAT3 could become a target for cancer therapy, specifically in Glioblastoma multiforme (GBM), a type of malignant and aggressive brain tumor.
When bees sting, they pump poison into their victims. Now the toxin in bee venom has been harnessed to kill tumor cells by researchers at Washington University School of Medicine in St. Louis. The researchers attached the major component of bee venom to nano-sized spheres that they call nanobees.
Schizophrenia waits silently until a seemingly normal child becomes a teenager or young adult. Then it swoops down and derails a young life.
Researchers at the Georgia Institute of Technology, collaborating with pediatric cardiologists and surgeons at The Children’s Hospital of Philadelphia, have developed a tool for virtual surgery that allows heart surgeons to view the predicted effects of different surgical approaches.
Researchers at the University of Massachusetts Medical School and the University of Florida in Gainesville have safely given new, functional genes to patients with a hereditary defect that can lead to fatal lung and liver diseases, according to clinical trial findings slated to appear this week in the online early edition of the Proceedings of the National Academy of Science.
In response to a recent surge in studies that integrate medicine and music, SAGE, the world's leading independent academic and professional publisher, is pleased to launch Music and Medicine in July, a new interdisciplinary journal that will incorporate the research that combines the two disciplines.
The normal ageing process has long been linked to problems with cell respiration, the process through which the cells extract energy from nutrients. Researchers at the Swedish medical university Karolinska Institutet have now shown how certain proteins that are synthesised in the cellular mitochondria - popularly known as the cells' power plants - become unstable and disintegrate, which in turn can impair cell respiration and cause premature ageing.
Building upon a series of successful preclinical studies, researchers at MassBiologics of the University of Massachusetts Medical School (UMMS) today announced the beginning of a Phase 1 clinical trial, testing the safety and activity of a human monoclonal antibody they developed that can neutralize the Hepatitis C virus (HCV).
Drinking beetroot juice boosts your stamina and could help you exercise for up to 16% longer. A University of Exeter led-study, published today (Thursday 6 August 2009), shows for the first time how the nitrate contained in beetroot juice leads to a reduction in oxygen uptake, making exercise less tiring.
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