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Science News for January 21, 2001


Researchers suspect link between welding and Parkinson’s disease

A study of 15 professional welders found they developed typical clinical signs of Parkinson's disease 15 years earlier than the general population. Brain imaging scans revealed no significant difference in dopamine levels between the welders and control patients, suggesting a possible environmental link.

SourceWashU Medicine·JournalNeurology·DateJan 21, 2001

Gene therapy for muscular dystrophy

A study by Penn researchers found that a common gene delivery system for muscular dystrophy can trigger an immune response in mice unless paired with a muscle-specific promoter. The use of restricted promoters is crucial before expanding clinical trials.

SourceUniversity of Pennsylvania School of Medicine·JournalHuman Gene Therapy·DateJan 21, 2001
Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Metabolism in women after weight loss varies from that of never overweight women

A study by Raben et al. found that postobese women have different metabolic profiles than never obese women, with greater insulin sensitivity and more efficient triacylglycerol storage. This suggests that weight loss may not entirely eliminate the risks associated with obesity.

SourceAmerican Journal of Clinical Nutrition·JournalAmerican Journal of Clinical Nutrition·DateJan 21, 2001

Energy-restricted diets shown to be best for improving lipid profiles

A study published in the American Journal of Clinical Nutrition found that energy-restricted diets had the most beneficial effects on serum lipids, lowering triglycerol concentrations and elevating HDL cholesterol. The authors suggest reevaluating current low-fat diet recommendations for individuals with excess body weight.

SourceUniversity of California - Davis·JournalAmerican Journal of Clinical Nutrition·DateJan 21, 2001

New and updated clinical practice guidelines

The Canadian Medical Association Journal has published new clinical practice guidelines for managing lymphedema related to breast cancer treatment. The guidelines include an updated patient version for women battling the condition. These updates aim to improve patient care and outcomes.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateJan 21, 2001

Children getting too much radiation in CT scans

A new study by Cincinnati Children's Hospital Medical Center reveals that some children receive five times more radiation than necessary during CT scans. Researchers found that adjusting technical factors like tube current and pitch can significantly reduce exposure without sacrificing image quality.

SourceCincinnati Children's Hospital Medical Center·JournalAmerican Journal of Roentgenology·DateJan 21, 2001
CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Cholesterol-lowering drug reduces strokes

A study found that the cholesterol-lowering drug pravastatin reduced stroke risk by 20% in patients with heart disease or high cholesterol. The medication also showed benefit when combined with aspirin and blood-pressure-lowering drugs, providing a new approach to preventing strokes.

SourceAtrium Health Wake Forest Baptist·DateJan 21, 2001

Scientists see early indications of lobster decline

Scientists have detected early indications of a lobster decline in the Gulf of Maine, with juvenile lobsters showing a 40% decrease in Penobscot Bay. The research team's approach to monitoring three stages of lobster life suggests widespread declines at least west of Penobscot Bay.

SourceUniversity of Maine·DateJan 21, 2001

Does specialized care mean better care?

A study by Dr. Vivek Goel and colleagues found that women with early-stage breast cancer treated in specialized teaching hospitals had a higher 5-year survival rate than those treated in community hospitals. The results suggest that initial treatment at specialized centers may be advantageous for women with small tumors.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateJan 21, 2001

Nutrient-dense food products improve cardiovascular health in frail elderly

A study found that nutrient-dense food supplementation significantly lowered serum homocysteine and methylmalonic acid levels, indicating a reduction in cardiovascular risk. However, exercise had no effect on neuropsychological functioning or nutritional health in frail elderly subjects.

SourceAmerican Journal of Clinical Nutrition·JournalAmerican Journal of Clinical Nutrition·DateJan 21, 2001

Experimental therapy may lead to better multiple sclerosis treatment

A new therapy effectively treats a disease similar to multiple sclerosis in monkeys by targeting T cells that cause the disease. The approach could soon be tested against MS and other autoimmune diseases in humans, offering potential for improved treatment options.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalThe Journal of Immunology·DateJan 21, 2001
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Different effects of puberty on resting metabolism in white and African American children

A new study found that puberty causes a general metabolic slowdown in both white and African American adolescents, with African Americans having greater lean mass in limbs but lower lean mass in the trunk. This difference may contribute to a lower resting energy expenditure (REE) in African Americans.

SourceAmerican Journal of Clinical Nutrition·JournalAmerican Journal of Clinical Nutrition·DateJan 21, 2001

Initial treating hospital can impact breast cancer outcomes

A new study found that women treated in teaching hospitals for initial breast cancer surgery had a five-year survival rate of 93%, compared to 89% for those treated in community hospitals. Comprehensive care approaches and multidisciplinary services may contribute to these differences.

SourceUniversity of Toronto·JournalCanadian Medical Association Journal·DateJan 21, 2001