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Science News Archive 2004 - Page 126


Page 126 of 135

Making of mouse marks move toward 'mitochondrial medicine'

Researchers have successfully created a new kind of mouse by replacing its genetic material with that from another species, paving the way for studies on mitochondrial medicine. The goal is to improve treatment options for people with currently untreatable diseases, such as infertility, diabetes, and neurodegenerative disorders.

SourceUniversity of Rochester Medical Center·JournalProceedings of the National Academy of Sciences·DateFeb 9, 2004

Race may be a factor in treatment of rectal cancer patients

A recent study found racial disparities in the delivery of care to black and white rectal cancer patients. Black patients were diagnosed at a younger age and had more advanced disease, leading to differences in treatment outcomes. The study suggests that improved access to state-of-the-art surgical care for minority patients with recta...

SourceJAMA Network·JournalArchives of Surgery·DateFeb 9, 2004

Death rates for certain complex surgeries lower at teaching hospitals

A study found that teaching hospitals have lower operative mortality rates for pancreatic, hepatic, and esophageal resections. Higher volume at teaching hospitals is a contributing factor to these differences in outcomes. The findings suggest that hospital structure and process variables play a role in variation in surgical outcomes.

SourceJAMA Network·JournalArchives of Surgery·DateFeb 9, 2004

U.S. push for diesel poses risk to public health, scientists say

Scientists say that replacing gasoline-fueled vehicles with cleaner diesel technology could lead to a significant increase in surface ozone levels, particularly in the Southeast. The study found that pollutants such as nitrogen oxides and hydrocarbons also increased, highlighting the need for more effective pollution control measures.

SourceStanford University·JournalGeophysical Research Letters·DateFeb 9, 2004

Breast cancer vaccine study

Researchers at the University of Pennsylvania are conducting a clinical trial to evaluate the safety and efficacy of a telomerase peptide-based vaccine against breast cancer. The study aims to stimulate an immune response that can target and kill cancer cells, with the goal of improving patient health.

SourceUniversity of Pennsylvania School of Medicine·JournalClinical Cancer Research·DateFeb 9, 2004

Algorithms help diagnose cancer

Researchers developed an algorithm, Q5, using PCA and LDA to differentiate between healthy and diseased blood samples. The algorithm achieved virtually 100% accuracy for ovarian cancer and approximately 95% accuracy for prostate cancer.

Pesticide exposure among agricultural workers varies by job task

Researchers found that agricultural workers who thin orchards have detectable levels of pesticides in their house and vehicle dust, posing a risk to children. Children of thinners were more likely to have detectable pesticide metabolites in their urine, supporting the theory that workers track home pesticides on their clothing and shoes.

SourceFred Hutchinson Cancer Center·JournalEnvironmental Health Perspectives·DateFeb 5, 2004

Natural killer cellers are made, not born

Rockefeller University scientists have discovered that natural killer cells, a crucial part of the immune system, need to be 'nurtured' before they can effectively destroy tumor and infected cells. This new understanding paves the way for potential changes in bone marrow and stem cell transplant procedures.

SourceRockefeller University·JournalThe Journal of Immunology·DateFeb 5, 2004