Tag: "metabolism" at biology news
Research Shows That If One Identical Twin Is Prey To Nightmares, Often The Other
... Nightmares raise your pulse rate and step up metabolism
in the brain.The frequency of your nightmares tends to stay roughly the same from childhoodthrough middle age, with some people suffering three or four nightmares a week. Christer Hublin of the University of Helsinki and his colleagues looked...
Genetic Defect Protects Against Smoking
...ith a defective gene resultingin impaired nicotine metabolism
smoked an average of 129 cigarettes a weekcompared to the 159 cigarettes a week smoked by people without the defect -- adecrease of 20 per cent. There are three types of the CYP2A6 gene: wild type (functioning) andtwo null alleles (defective)...
Crossing Bacterial/Archaeal Boundaries
...organisms in nature. They have in common an energy metabolism
involving C1 transfer reactions. Methanogens are s...(archaea, bacteria, eucarya). Their central carbon metabolism
involves the conversion of the C1 compound carbon dioxide (CO2) to methane (CH4) in the presence of ...
Clockwork Clues Determined
...e 24-hour light-dark cycle that times behavior and metabolism
for most organisms from plants to people. In humans, delayed resetting by the clock is an underlying cause of jet lag, and clock malfunction has been linked to seasonal affective disorder and various sleep and mental disorders. DMS Researchers, J...
New Research On Environmental Pollutants
...hings, the thyroid hormone system, which regulates metabolism
will bediscussed. New Findings Regarding Possible Health Effects Of Common Brominated FlameRetardants Tetrabromobisphenol-A (TBBP-A) is the most widely employed brominated flameretardant. TBBP-A can compete with the thyroid hormone tyroxine - o...
Study Finds Evidence Linking The Brain's Cognitive Control Regions With Stress Control Regions
...lledglucocorticoids. These chemicals regulate the metabolism
of carbohydrates,proteins and fats in the body. It responds to chemical signals sent from otherareas. The hypothalamus. It is responsible for the body's homeostasis, or balance. It in large part dictates the overall health of the animal through co...
Scientists Closer To Locating Gene That May Explain Cholesterol Absorption
...rare hereditary disease. While cholesterol metabolism
has been well-documented, scientistsunderstand little about how cholesterol is absorbed from our diet and excretedby the body. "Only a fraction of the cholesterol we consume is actually absorbed bythe body," said Dr. Shailendra Patel, assist...
Stroke Risk Increased In Patients With High Oxygen Use In Brain
... investigators measured both blood flow and oxygen metabolism
in thebrains of the study subjects. They studied 8... we think this study clearly indicates that oxygen metabolism
inthe brain is important to stroke risk and that available medical treatments dolittle to alter risk...
Scientists Find Gene For Severe Form Of Epilepsy
...ct that LD was caused byproblems with carbohydrate metabolism
in the brain. Beyond this, however, thefundamental defect triggering the malfunction was unknown. "Identifying the LDgene gives us the key to open the 'door' of the cell so we can determine thecause of the seizures," says Scherer. The LD gene produce...
Breakthrough In Understanding The Biology Of Fat-- UCSF/Gladstone Scientists Discover Gene For Key Enzyme
...elated enzyme--calledACAT--involved in cholesterol metabolism
to screen computer databases containingsnippets of...sease focuses on the studyof cholesterol and lipid metabolism
and their impacts on cardiovascular disease. The Institute is one of three that make up the ...
Scientists Finger A Molecular Kingpin In Body's Response To Cigarettes
...to the antagonists we're designing, that alter the metabolism
ofcigarette smoke. "Of course, the best way to limit the harmful effects ofcigarette smoke is to avoid exposure completely. Don't smoke: It'sthat simple."...
Molecular Mechanism For Evolution Described
...rotein can no longer function,and regular cellular metabolism
cannot proceed. Hsp 90's charges are special. They are proteins called signal transducers,which regulate development and cell differentiation. Hsp 90 keeps thempoised and ready for action. "Signal transducers control morphologicaldevelopment. They ma...
New Findings On Receptor Regulation May Lead To Better Drugs For Diabetes
... influences avariety of processes, including sugar metabolism
and fat cell proliferation, byturning specific genes on and off. Chemicals that can bind to the receptorincrease insulin's ability to lower blood sugar in the body. That action is crucial to controlling adult-onset diabetes, whichresults not ...
Gene Identified For Heart Defect That Causes Sudden Death In Young People
...is findinghelped to define the role of cholesterol metabolism
in heart attacks. Scientists are intrigued by the fact that ARVD occurs only in the rightventricle. Two other inherited heart disorders that can cause sudden and earlydeath occur only in the larger left ventricle, which pumps blood to the rest ofthe...
Gene Once Thought To Program Ovarian Development Instead Found To Be Critical For Production Of Sperm
...rinology andMetabolism and chief of endocrinology, metabolism
and molecular medicine atNorthwestern University Medical School. In addition to Yu, who is a graduatestudent at the University, Jameson's co-researchers on this study were MasafumiIto, research assistant professor of medicine at the Medical School, a...
Search For Iron Transport Mechanism Leads To "Hephaestus," God Of Metal Working,Who Insight Into Iron-Deficiency Anemia
...y did so by surveying a database of genes in metal metabolism
and determiningthat their gene was extremely similar genetically to another gene,ceruloplasmin, what Vulpe called a "sky blue protein of the blood," alreadyknown to be intimately involved in some steps of iron transport--and to containcopper. (Congen...
Plant-Based Fat May Reduce Risk Of Prostate Cancer By Altering Testosterone Metabolism, UB Study Shows
...s to examine the influence ofvegetable fats on the metabolism
of testosterone in liver, testis and prostatetissu...erols compete withtestosterone and its products of metabolism
for the enzyme's active receptors,or that they reduce production of the enzymes themselves. "At a...
Vesicle Chemistry: A New Way To Get Life-Like Reactions
... are: Investigating important parts of the cell's metabolism
includingaccumulation and release of neurotransmitters and synthesis of proteins; Examining the biochemistry of cells infected with pathogens; Delivering drugs and genes to single cells. "In the past, when studying the chemistry of life, we had two...
Genetic Research Boosts Understanding Of Iron's Path Through Body, Diseases Of Iron Metabolism
...ly lead to improved diagnosis and treatmentof iron metabolism
disorders. Led by Nancy Andrews, associate ...of how iron travels through the body. Iron metabolism
disorders--which include iron deficiency and ironoverload diseases--afflict more than a billion peop...
Study Ensures Effective Ways To Measure Macular Pigment Density
...arotenoids may limit oxidant stress resulting from metabolism
and light, acting as antioxidants. In this study, serum concentrations for lutein, zeaxanthin and beta-carotene were measured by HPLC, and MPOD was measured by heterochromatic flicker photometry. Dietary patterns and demographic/medical characteri...
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