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Science News for May 31, 2009


Penn researchers discover genetic risk factor for testicular cancer

A study published in Nature Genetics found that men with two copies of the KITLG gene have a 4.5-fold higher risk of testicular cancer, while those with two copies of the SPRY4 gene have a 1.48-fold higher risk. The discovery sheds light on genetic factors contributing to the disease and may help identify critical environmental factors.

SourceUniversity of Pennsylvania School of Medicine·JournalNature Genetics·DateMay 31, 2009

MicroRNAs grease the cell's circadian clockwork

A study by Ueli Schibler's team reveals that a specific microRNA called miR-122 plays a crucial role in regulating the expression of circadian genes in liver cells. The discovery sheds light on the molecular mechanisms controlling the internal clock and its potential connection to hepatitis C virus replication.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateMay 31, 2009
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2-drug combination appears safe and active in metastatic kidney cancer

A phase I trial found a two-drug combination of temsirolimus and bryostatin to be safe and active in patients with metastatic kidney cancer. The combination showed sustained responses in some patients, particularly those with rare forms of renal cell carcinoma that don't respond well to standard therapies.

SourceFox Chase Cancer Center·DateMay 31, 2009

Liver disease 'shrunk' by blood-pressure drug

A clinical trial has shown that losartan, a blood-pressure medicine, can shrink liver scarring and allow the organ to repair itself in some patients with early-stage liver failure. The drug works by blocking a signalling pathway that causes scar tissue to accumulate, allowing the damaged area of the liver to be repaired.

SourceNewcastle University·JournalGASTROENTEROLOGY·DateMay 31, 2009

New surgical technique shows promising results for patients with cervical cancer

A new surgical technique, total mesometrial resection (TMMR), has been shown to reduce complications and improve survival rates in patients with early-stage cervical cancer. The study found a 94% recurrence-free survival rate and a 96% 5-year survival rate, significantly better than traditional radical hysterectomy methods.

SourceThe Lancet_DELETED·JournalThe Lancet Oncology·DateMay 31, 2009

International Serious Adverse Events Consortium announces initial study results in its global research collaboration to identify genetic markers related to drug induced liver injury

Researchers have discovered genetic markers that predict individuals at risk for serious drug-induced liver injury. The study found that HLA-B*5701 is a major determinant of liver injury induced by flucloxacillin, and variations on chromosome 3 also influence the risk.

SourceInternational Serious Adverse Events Consortium·JournalNature Genetics·DateMay 31, 2009
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