Taipei- Exiled Chinese dissidents will launch a series of campaigns to demand China to apologize for the 1989 massacre of protestors on Beijing's Tiananmen Square, a Taiwan-based Chinese dissident said Thursday.

The call comes in the run up to the 20th anniversary of the communist government's bloody crackdown on student protestors on June 4, 1989 - whose full death toll has never been established.

Kabul- US-led coalition forces killed two suspected Taliban militants in an operation in southern Afghanistan while three other suspects were detained in central Afghanistan, the US military said Thursday.

Using information provided by intelligence sources, a combined force of Afghan and coalition troops conducted an operation in the Tarin Kot district of Uruzgan province Wednesday and killed two suspected militants, the US military said in a statement.

The joint forces also seized pistols, one AK-47 assault rifle and ammunition during the operation, it said.

Washington, Apr 23 : Researchers from the Kimmel Cancer Centre at Jefferson have found that vitamin K when combined with sorafenib can help curb pancreatic and primary liver cancers.

According to Dr Brian Carr, professor of Medical Oncology at the Jefferson Medical College of Thomas Jefferson University, vitamin K1 or vitamin K2, combined with sorafenib (Nexavar) each have shown activity against the growth of human cancer cells by inhibiting the extracellular signal-regulated kinase (ERK) pathway.

Washington, Apr 23 : A new study has revealed that common ulcer drugs when combined with an anti-inflammatory medication can offer a potential treatment for Alzheimer's disease.

The research team from the University of British Columbia has found that drugs commonly used to treat ulcers have significant neuroprotective properties, which appear to be enhanced when used in combination with ibuprofen, a widely used anti-inflammatory drug.

Washington, Apr 23 : In a study on adolescent binge drinkers, scientists have found that even rare consumption of large doses of alcohol during youth may compromise the coherence of the brain''s white matter fibre.

Such incoherence has been known in adult alcoholics, but researchers were unaware as to when during the course of drinking white matter abnormalities become apparent.

Washington, Apr 23 : A glass of 100 percent juice every morning can lower the risk of obesity and metabolic syndrome - a cluster of conditions that increases risk for stroke, heart disease and diabetes, concludes a new study.

New research presented at the Experimental Biology (EB) 2009 meeting highlights the association among adult men and women, with evidence showing that 100 percent juice drinkers were leaner, had better insulin sensitivity and had lower risk for obesity and metabolic syndrome.