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Science News Archive April 2007 - Page 6


Page 6 of 17

Lean for life

A baby formula supplemented with leptin, a hunger hormone, has been found to promote permanent weight loss and prevent diabetes in rats. The researchers believe that early introduction of leptin can 'hard-wire' the body's energy balance, leading to more efficient energy expenditure.

SourceSociety of Chemical Industry·JournalChemistry & Industry·DateApr 23, 2007

First demonstration of muscle restoration in an animal model of Duchenne muscular dystrophy

A new class of treatment, PTC124, has been shown to restore muscle function in a mouse model of Duchenne muscular dystrophy by targeting a specific genetic defect. The drug allows the ribosome to read through a mutation and produce full-length dystrophin protein, enabling enough protein to be made to correct defects in the muscles.

Motile Cilia go with the flow

Researchers at Salk Institute discovered a 2-step mechanism for cilia to agree on direction, enabling directional fluid flow. Cilia refinement phase ensures coordinated movement of up to 200 cilia per cell.

SourceSalk Institute·JournalNature·DateApr 22, 2007

Brain networks strengthened by closing ion channels

Researchers discovered a molecular mechanism that strengthens brain networks by closing ion channels, which may improve working memory and reduce distractibility in conditions like ADHD. This discovery has implications for developing drug therapies for normal aging and treating cognitive changes in schizophrenia and bipolar disorder.

SourcePorter Novelli·JournalCell·DateApr 20, 2007

Knocking out survival protein could aid leukemia treatment

A new study suggests that targeting the survival protein Mcl1 may be an effective way to treat leukemia, particularly when combined with existing drugs like rituximab. The research found that knocking out Mcl1 can cause cancer cells to die, and combining it with rituximab killed significantly more leukemia cells than the drug alone.

SourceOhio State University·JournalClinical Cancer Research·DateApr 20, 2007

UD chemical engineer receives NSF career award

Thomas H. Epps III, a recipient of the prestigious Faculty Early Career Development Award from the National Science Foundation, is advancing the development of high-performance materials through his research on block copolymers. His five-year grant will support the creation of nanoscale materials with unique properties, potentially lea...

Why cisplatin kills breast cancer cells when other drugs fail

Triple-negative breast cancer cells are sensitive to cisplatin due to increased expression of delta-Np63 and TAp73 proteins. Cisplatin releases TAp73 from delta-Np63, leading to cell death. This study suggests using cisplatin as an early treatment option for individuals with triple-negative breast cancer.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateApr 19, 2007

Morphine kills the pain, not the patient

A recent study found that morphine's effectiveness in pain relief does not correlate with patient survival time. In fact, patients with no opioid experience are at risk of respiratory depression, while those with moderate-to-severe chronic pain are not. This challenges the common misconception that morphine is deadly.

SourceThe Lancet_DELETED·JournalThe Lancet·DateApr 19, 2007

JCI table of contents -- April 19, 2007

Triple-negative breast cancer cells are sensitive to cisplatin, a common chemotherapeutic drug that can be effective in treating the disease. Researchers also found that delta-Np63 and TAp73 proteins play a crucial role in mediating chemosensitivity to cisplatin.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateApr 19, 2007

2-protein team would be lost without each other

A team of scientists has discovered a key mechanism by which plant proteins, Scarecrow and Short-root, regulate water and nutrient uptake in plants. This complex system ensures that plants can control the amount of water and nutrients they take in through their roots, enabling them to thrive in various environments.

SourceDuke University·JournalScience·DateApr 19, 2007