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.
Researchers at Georgia Tech have developed a narrowband filter mosaic that will expand the uses and functionality of multispectral imaging-a technology that enables subsurface characterization.
Many patients may soon find relief from the bloating, cramping, abdominal pain and constipation associated with irritable bowel syndrome, or IBS.
The concept sounds ideal: vaccines made of DNA that could be taken in by other cells and give instructions for how to fight off different diseases. The reality, however, has fallen short. Although DNA vaccines have been around for about 15 years and shown lots of promise for HIV, SARS and influenza vaccines during preclinical testing in mice, researchers have yet to make them potent enough to be helpful in humans.
Losing a limb can be a traumatic experience and, in some cases, emotional and physical pain can linger for years. To better understand the phenomenon, dubbed "phantom limb syndrome," Université de Montreal graduate student Emma Duerden is inviting amputees to come forward and share their experiences for a major study.
Researchers at Columbia University Medical Center have illuminated a window into how abnormalities in microRNAs, a family of molecules that regulate expression of numerous genes, may contribute to the behavioral and neuronal deficits associated with schizophrenia and possibly other brain disorders.
A study, led by University of Iowa researchers, reveals a new dimension for a key heart enzyme and sheds light on an important biological pathway involved in cell death in heart disease.
University of Florida researchers have identified a drug compound that dramatically lowers blood pressure, improves heart function and - in a remarkable finding - prevents damage to the heart and kidneys in rats with persistent hypertension
Researchers in the United States say they have produced a stem cell made from ordinary mouse skin cells which they have coaxed into becoming three different types of heart and blood cells in mice.
Stem cell researchers at UCLA were able to grow functioning cardiac cells using mouse skin cells that had been reprogrammed into cells with the same unlimited properties as embryonic stem cells.
Hydrogen sulphide is a gas most commonly associated with the smell of stink bombs, sewage and rotten eggs, but a team of researchers from the Peninsula Medical School in the South West of England and King's College London have now identified a role for this gas in regulating blood pressure, according to research published in the leading science journal "Circulation".
When the eye tracks a bird's flight across the sky, the visual experience is normally smooth, without interruption. But underlying this behavior is a complex coordination of neurons that has remained mysterious to scientists. Now, UCSF researchers have broken ground in understanding how the brain generates this tracking motion, a finding that offers a window, they say, into how neurons orchestrate all of the body's movements.
For the first time researchers are beginning to understand exactly how various forms of exercise impact the heart. Massachusetts General Hospital (MGH) investigators, in collaboration with the Harvard University Health Services, have found that 90 days of vigorous athletic training produces significant changes in cardiac structure and function and that the type of change varies with the type of exercise performed.
Normal developmental changes during the teenage years leave young adult men at higher risk of heart disease than their female counterparts, researchers report in Circulation: Journal of the American Heart Association.
About 40 percent of African-Americans have a genetic variant that can protect them after heart failure and prolong their lives, according to research conducted at Washington University School of Medicine in St. Louis and collaborating institutions.
A genetic variation, found predominantly in African Americans, protects some people with heart failure, enabling them to live longer than expected. That's the conclusion of a research team led by investigators at the University of Maryland School of Medicine in Baltimore and the Washington University School of Medicine in St. Louis.
The study "Oxidative Stress is an Important Component of Airway Inflammation in Mice Exposed to Cigarette Smoke or Lipopolysaccharide" investigates the inflammatory responses in oxidative stress-deficient mice exposed to cigarette smoke.
The estimated 19 million Americans living with chronic kidney disease (CKD) face a high risk of death from cardiovascular disease. Recent studies have shown that a main source of this cardiovascular risk is CKD patients' high levels of blood phosphate.
When City traders have high morning testosterone levels they make more than average profits for the rest of that day, researchers at the University of Cambridge have discovered.
Even after the age of 70, people prone to feelings of anxiety, worry, distress and insecurity face a risk for a first lifetime episode of clinically significant depression, according to a unique study led by a University of Rochester Medical Center researcher.
Researchers at the University of Pennsylvania School of Medicine have discovered that a protein called leiomodin (Lmod) promotes the assembly of an important heart muscle protein called actin.
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