Sunday 21 September, 2014

Contraceptive pill, HRT may protect women against cerebral aneurysm

Published On: Thu, May 5th, 2011 | Women Health | By BioNews

A research has revealed that women who develop cerebral aneurysms are less likely to have taken the oral contraceptive pill or hormone replacement therapy, suggesting taking oestrogen could have a protective effect.

Cerebral aneurysms -– weaknesses in the blood vessel walls of the brain that cause the vessels to balloon -– occur more frequently in women, and it has been suggested that female hormones may play a role in their development.

If the cerebral aneurysm ruptures, because the ballooning wall bursts, this can be life threatening and is known as a haemorrhagic stroke.

Oestrogen helps maintain the structure of blood vessel walls by promoting the division of endothelial cells within the vessel walls, which is important for repair if the vessels become damaged. However, oestrogen levels drop significantly at the menopause.

Women have been shown to be more likely to develop a cerebral aneurysms after the age of 40 years, and aneurysms are most likely to rupture between the ages of 50 and 59 years.

The authors asked 60 women with cerebral aneurysms about their use of the oral contraceptive pill and hormone replacement therapy, and this was compared with usage in 4,682 other women drawn from the general public.

Women with cerebral aneurysms were found to have been significantly less likely to have taken oral contraceptives or hormone replacement therapy. Women with cerebral aneurysms also had an earlier average age of menopause.

The research has been published in the Journal of NeuroInterventional Surgery.

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