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Science News Archive 2000 - Page 11


Page 11 of 66

Key heart drug underutilized

A Duke University Medical Center study found that ACE inhibitors are prescribed in just over half the cases they should be, despite clear evidence of their benefits. The study's author suggests increasing physician education and implementing an oversight system to ensure patients receive the best treatments.

Fat as a target of antidiabetic drugs

A study found that antidiabetic drugs are less effective in mice without adipose tissue, suggesting a possible connection between fatty liver disease and diabetes. The authors also noted that the drugs still had some beneficial effects on lipid metabolism in these animals.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 12, 2000

Old hearts become new again

Researchers at UCLA Medical Center found that implementing a dual list for organs increases the supply of usable donor hearts for older adults. The program allows patients over 65 to receive transplants from donor hearts with minor repair needs, previously deemed unsuitable for younger patients. This approach improves patient survival ...

Korean Americans at risk for high blood pressure

A Johns Hopkins study found that one-third of Korean Americans have high blood pressure, with almost 75% not controlling it. The prevalence is 32%, much higher than the American rate of 24% and Korean rate of 22%. English-speaking ability directly impacts hypertension control among Korean Americans.

SourceJohns Hopkins Medicine·JournalEthnicity & Disease·DateNov 9, 2000

Polycystic ovary syndrome may lead to early onset of atherosclerosis, even among thin women, according to University of Pittsburgh study

A University of Pittsburgh study reveals that young women with polycystic ovary syndrome (PCOS) are at high risk of developing premature atherosclerosis by middle age. The researchers found that PCOS patients had higher levels of cardiovascular disease risk factors, including insulin and LDL cholesterol.

UF surgeons modify bladder removal technique

University of Florida surgeons have improved a bladder removal technique, reducing complications and improving patient outcomes for those with severe bladder problems. The new method minimizes blood loss and is well-tolerated by patients, making it an ideal approach for those too ill to undergo standard surgery.

SourceUniversity of Florida·JournalThe Journal of Urology·DateNov 9, 2000

X-ray snapshots capture the first cries of baby stars

Astronomers using Chandra X-ray Observatory have discovered that protostars, the youngest stage of star formation, are marked by powerful X-rays from plasma ten times hotter and 100 to 100,000 times brighter than our Sun's flares. This has provided the closest look yet at the youngest stars in the Universe.

Pre-Columbian Native Americans built and maintained a massive, landscape-scale fishery in Bolivian Amazon, according to Penn Museum archaeologist

A team of archaeologists led by Dr. Clark Erickson discovered a unique landscape-scale fishery operated by pre-Columbian native peoples in the Baures region of Bolivia. The ancient earthworks, built around 300 years ago, provided intensive aquaculture allowing for sustainable food production.

SourceUniversity of Pennsylvania·JournalNature·DateNov 7, 2000

Hereditary lymphedema genetic mutations found

Scientists have discovered genetic mutations causing hereditary lymphedema-distichiasis, a condition characterized by severe fluid retention and double rows of eyelashes. The FOXC2 gene on chromosome 16 is responsible for the mutations, which can also lead to heart defects, spinal abnormalities, and cleft palate.

SourceUniversity of Michigan·JournalAmerican Journal of Human Genetics·DateNov 7, 2000

'Six degrees' method samples hidden populations

A new sociological sampling method, called respondent-driven sampling, can identify hard-to-reach groups. By analyzing the connections between individuals in a group, researchers can gather information and correct for biases to obtain a representative sample of populations such as drug users, jazz musicians, and other marginalized groups.

SourceCornell University·JournalPoetics·DateNov 6, 2000

Simulated operator

A Carnegie Mellon University computer model performed as well as a human in managing seven tasks simultaneously and coping with frequent interruptions. The training advantages of the model are enormous, allowing operators to gain valuable experience at much less cost.

Violence is a learned behavior, say researchers at Wake Forest University

A new study by researchers at Wake Forest University found a strong association between exposure to violence and the use of violence by young adolescents. The study, which included 722 Georgia middle school students living in or around public housing, found that even if children are exposed to other risk factors, social learning from e...

SourceAtrium Health Wake Forest Baptist·JournalThe Journal of Pediatrics·DateNov 6, 2000