Tag: "failure" at biology news
Vitamin C transporter gene discovery in mice
... during pregnancy, and the devastating respiratory failure
and massive cerebral bleeding that can occur immed...ral hemorrhage, lung complications and respiratory failure
are frequent causes of serious morbidity and death in premature infants. Maturation of the lungs occ...
Scientists identify the 'Bin Laden' of cancer causing faulty proteins
...ns in this way. This switching on of c-Myc and the failure
of the cell suicide mechanism are two of the mutations required to start a cancer. However many researchers currently believe that many more mutations are also required if a cancer is to develop, for instance a mutation for developing a new blood sup...
Potential therapy reported for children, adults with end-stage liver disease
...nsciousness and death. Patients with chronic liver failure
demonstrate the consequences of astrocyte swelling by exhibiting behavioral changes rather than brain swelling. In their animal studies, Brusilow, emeritus professor of Pediatrics at Johns Hopkins, and his colleagues Richard Traystman, Ph.D., and Ray...
Gene thats key to cloning success also hints at serious hurdles to reproductive cloning
...adopt the genetic profile of an embryonic nucleus; failure
to do so dooms the embryo." To evaluate the accuracy of this genetic reprogramming, The Penn group analyzed Oct4 expression in cloned mouse embryos derived from cells that surround ovulated eggs in adult mice, cells that would not normally express O...
Extreme climate variance sped extinction of local butterfly populations, researchers say
...biggest source of mortality for the butterflies is failure
to get big enough to go into diapause before the plant vanishes," Boggs says. When the rains come in November, the caterpillars begin feeding again. Now they are only half an inch long, but they must multiply their weight many times before they becom...
Research suggests diabetes drug being prescribed even when contraindicated
... for patients also suffering from congestive heart failure
or kidney dysfunction or both despite clear warnin...gues found 14 of the patients had congestive heart failure
only, five had kidney dysfunction only and three had both. The mean age of patients was 60; half wer...
U of Minnesota study: Adult bone marrow stem cells can become liver cells
...helpful for some types of cirrhosis or acute liver failure
due to medications. In addition, the cells might b...al liver can help bridge a person from acute liver failure
to transplant. "The immediate benefit might well be to help pharmaceutical researchers and manufact...
New hope for diabetics in treating blindness
...ead to blindness (diabetic retinopathy) and kidney failure
(diabetic nephropathy) in diabetics and to find new drugs to combat the disease. "A vital clue to our breakthrough came unexpectedly when treating diabetics for high blood pressure, another consequence of the disease," says Dr Jennifer Wilkinsonson-B...
Anemia complicates heart failure, should be new focus, doctor says
...butor to problems associated with congestive heart failure
(CHF), a University of North Carolina at Chapel Hi...nt of all Americans over age 40 will develop heart failure
before they die. "Five million or so people have been diagnosed with, and are living with, congestiv...
Expeditions find no evidence of ivory-billed woodpecker
...t many view as the most comprehensive conservation failure
of 20th Century America. By 1900, millions of acres of virgin pine and hardwood still existed in the southeastern United States, including in Louisiana. For a variety of reasons, those who had opportunities to do so failed to save even a single tract...
Research into rare disease leads to discovery of six new breast cancer-susceptibility genes
...orn with the condition usually develop bone marrow failure
early in life, leaving them unable to produce oxygen-carrying red blood cells. If they survive into young adulthood often with the help of a bone marrow transplant they're at risk for a variety of cancers most often leukemia, but also tumors of t...
University of Toronto researchers get to the heart of heart failure
... in heart function - one that contributes to heart failure
and one that protects against it. "This finding is really amazing because it opens up new avenues for the treatment of cardiovascular diseases and heart failure," says Professor Josef Penninger of U of T's medical biophysics and immunology department...
New drug boosts fight against HIV, researchers find
...ion to greater potency, no patients with virologic failure
on the lopinavir-ritonavir combination showed evidence of resistance to the drug compared to the nelfinavir group, in which 33 per cent of failing patients developed resistance. "Two main barriers to treatment are resistance to the drug and adherence...
ICSI: Is it really safe?
...ies. ** Gonodal dysgenesis: genetically determined failure
of the testes or ovaries to produce germ cells. The most common manifestation of the condition in women is Turner's Syndrome. In men it is Klinefelter's Syndrome, which occurs in about 1 in 1,000 men, who are born with an extra X chromosome. They ten...
PGD could save women from the agony of repeated miscarriages
...ained recurrent miscarriages (RM) and implantation failure
(IF). She and her colleagues had achieved normal pregnancy rates and a decreased risk of miscarriage in women with these conditions by screening the embryos for chromosomal abnormalities during IVF and transferring only the normal embryos to the wom...
African HIV strains appear more resistant to current therapies
...tations and, hence, may lead to a faster long-term failure
of the therapy." The research supports the argument that scientists need to broaden the focus of HIV drug development, which has been almost exclusively centered on HIV-B. However, Freire cautioned, "The experiments so far are at the biochemical leve...
Independent study: DEET products superior for fending off mosquito bites
...s that elapsed between arm insertion and the first failure
of each repellent. "We selected the time of first bite as a very stringent criterion for failure
because the primary concern here is not nuisance bites but the possibility that diseases caused by m...
Patients with serious kidney disorder produce natriuretic peptides at above average rates
...nts with nephroitic syndrome and associated kidney failure
are the natriuretic peptides, a class of compounds of low molecular weight, yielding two or more amino acids. They are secreted by the heart and act as hormones causing expanded vascular tube size, increased excretion of urine, and abnormal secretio...
'Obesity sleuths' find chronic diseases linked to behavior contrary our DNA
...ffort is that a lack of physical activity leads to failure
of the maintenance of normal signaling by cellular... a breakdown in the body's biomedical system and a failure
of genes leading to chronic disease. Now, the American public has a baseline of information of how ...
ACE inhibitor drug used to delay heart failure as effective in blacks as whites
... A drug widely used to treat patients with heart failure
is as effective for black patients as it is for wh...port the hypothesis that black patients with heart failure
may not respond as well to angiotensin-converting enzyme (ACE) inhibitors as white patients with hea...
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