Discover the Science of Health
Microbes inhabit just about every part of the human body, living on the skin, in the gut, and up the nose. Sometimes they cause sickness, but most of the time, microorganisms live in harmony with their human hosts, providing vital functions essential for human survival. For the first time, a consortium of researchers organized by the National Institutes of Health has mapped the normal microbial makeup of healthy humans, producing numerous insights and even a few surprises.
During pregnancy, women need to take special care to avoid becoming ill. There are several reasons for this. The first is that a pregnant woman’s immune system is not as strong during pregnancy as it generally is; this helps to prevent the mother’s body from attacking the developing fetus. Unfortunately, however, the weakened immune system also means that pregnant mothers are more susceptible to pathogens that they’d otherwise fight off relatively easily. Increased susceptibility aside, there’s also the concern that some illnesses — influenza included — can impact the developing fetus. Finally, there’s the simple fact that many of the medications used to treat illnesses and their accompanying symptoms aren’t appropriate for pregnant women.
This article was written by Carter Harkins.
Stress is at epidemic levels in our population. The American Psychological Association released its Stress in America 2011 Report earlier this year, and according to the report, 73% of us think our stress levels are the same or higher than they were 5 years ago [1]. Ninety-four percent of us believe that stress can contribute to the development of major illnesses such as hypertension, cardiovascular disease, stroke, obesity, diabetes and depression, but only 29% say that they are doing an excellent or good job at managing or reducing stress. Clearly, this is cause for concern.
The 2011 Nobel Prize in Physiology or Medicine was announced on Monday. The prize was awarded to three scientists for their work on the body’s immune system.
The prize of 10-million-Swedish-krona (US$1.5-million) was divided, one half jointly to Bruce A. Beutler, age 54, at The Scripps Research Institute, La Jolla, California, and Jules A. Hoffmann, age 70, at the French National Centre for Scientific Research (CNRS) Institute of Cell and Molecular Biology in Strasbourg, for their discovery of receptor proteins that can recognize bacteria and other microorganisms and activate innate immunity, and the other half to Ralph M. Steinman, age 68, at Rockefeller University in New York, for his discovery of dendritic cells of the immune system and their unique capacity to activate and regulate adaptive immunity, the later stage of the immune response during which microorganisms are cleared from the body.
Researchers offer the first evidence that DNA damage can lead to the regulation of inflammatory responses, the body’s reaction to injury. The proteins involved in the regulation help protect the body from infection. The study, performed by scientists at the National Institute of Environmental Health Sciences (NIEHS), which is part of the National Institutes of Health, is one of the first studies to come out of the recently established NIEHS Clinical Research Unit (CRU).
