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According to a recent study, the popular herbal extract ginkgo biloba may help the brain recover after a stroke.

The supplement, available in health food shops or pharmacies all over the world, is used in China to aid memory and fight depression.

In a trial of 330 stroke patients over six months in China, ginkgo biloba was linked with better cognitive skill scores on tests.

However, experts say the evidence for ginkgo is too weak to recommend it.

Those behind the study – published in the online journal Stroke & Vascular Neurology – admit that larger, longer and more robust trials are needed.

The small study was carried out by Nanjing University Medical School, with patients from five Chinese hospitals.

All 330 participants began the trial within a week of having an ischemic stroke. The average age of the patients was 64.

Roughly half of them were given 450mg of ginkgo biloba daily, in addition to 100mg of aspirin, while the remainder were given only the aspirin.

During a stroke, the blood supplying vital parts of the brain is interrupted, often leading to impaired memory and a decline in organizational and reasoning skills among stroke survivors.

Researchers wanted to see if combining ginkgo biloba with aspirin might help lessen or halt the cognitive decline.

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Previous experimental studies in animals have suggested that ginkgo biloba protects against the nerve cell death associated with blood clots in the brain, possibly by increasing blood flow in the cerebral arteries.

All the participants took a neuropsychological test (Montreal Cognitive Assessment) at the start of the trial, and then 12, 30, 90 and 180 days later, to check for any cognitive impairment.

The results showed that those taking the combination of aspirin and ginkgo biloba had higher scores for cognitive skills, including memory and reasoning, than those who weren’t.

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Speech problems and muscle strength also improved more rapidly, with indications of improved functional capacity 12 and 30 days after the start of treatment. However, both the clinicians and the patients knew which treatment they had been assigned to, which may have skewed the results, and the monitoring period was not very long.

Ginkgo biloba is one of the oldest living tree species.

According to researchers, the extract used in the study contained more protective, and fewer harmful, chemicals than the extract typically used in previous studies.

Few side-effects were reported during the trial.

The participants were subsequently monitored for nearly two years, with little difference in the vascular health of the two groups: 16 people in the combined treatment group, and 20 in the aspirin group had further problems, including recurrent stroke and aneurysm.

However, longer term studies looking at stroke severity are necessary, before any more definitive conclusions can be reached.

Iraq’s President Jalal Talabani is flying to Germany for further treatment after a reported stroke.

German doctors have assessed 79-year-old Jalal Talabani and decided his condition has improved sufficiently to permit travel.

A presidential statement said: “Treatment has allowed suitable conditions for his Excellency to be transferred outside the country.”

The president has struggled with his health in recent years and has often been treated abroad.

Jalal Talabani was reportedly rushed to the Baghdad Medical City on Monday evening.

Iraqi officials conceded in private that his condition was serious and state television reported that he had suffered a stroke.

Iraq’s President Jalal Talabani is flying to Germany for further treatment after a reported stroke

Iraq’s President Jalal Talabani is flying to Germany for further treatment after a reported stroke

A veteran of the Kurdish guerrilla movement, Jalal Talabani is Iraq’s first president from the ethnic group.

His illness comes at a time of heightened political tensions between Iraq’s Arab-led central government and the semi-autonomous Kurdish region in the north.

In recent weeks, he has been mediating in the dispute triggered by the government’s attempt to take greater control of security in oil-rich territory around the city of Kirkuk, which is claimed by both Arabs and Kurds.

Kurdish forces have been deployed in the region since 2003.

A deal brokered by Jalal Talabani called on both sides to withdraw troops from the contested areas, though no deadline was set.

The president, whose powers are limited, is seen as a unifying figure who has helped prevent the disintegration of Iraq’s fragile national unity government, which includes Shia and Sunni Arabs as well as Kurds.

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