1. New blood biomarker for episodic migraine identified

New blood biomarker for episodic migraine identified

Researchers have identified a potential new marker found in the blood for episodic migraine, an advance that could have wide-ranging effects in diagnosing and treating the disorder.

By: | Published: September 16, 2015 10:54 AM

Researchers have identified a potential new marker found in the blood for episodic migraine, an advance that could have wide-ranging effects in diagnosing and treating the disorder.

Episodic migraine is defined as having less than 15 headaches per month.

“While more research is needed to confirm these initial findings, the possibility of discovering a new biomarker for migraine is exciting,” said study author B Lee Peterlin, from the Johns Hopkins University School of Medicine in US.

For the study, 52 women with episodic migraine and 36 women who did not have any headaches underwent a neurologic exam, had their body mass index measured and gave blood samples.

Women with migraine had an average of 5.6 headache days per month.

The blood samples were tested for a group of lipids that participate in energy homeostasis and that help to regulate inflammation in the brain.

The study found that the total levels of the lipids called ceramides were decreased in women with episodic migraine as compared to those women without any headache disorders.

Women with migraine had approximately 6,000 nanogrammes per millilitre of total ceramides in their blood, compared to women without headache who had about 10,500 nanogrammes per millilitre.

Every standard deviation increase in total ceramide levels was associated with over a 92 per cent lower risk of having migraine.

Additionally, and in contrast to the ceramides, two other types of lipids, called sphingomyelin, were associated with a 2.5 times greater risk of migraine with every standard deviation increase in their levels.

The researchers also tested the blood of a random small sample of 14 of the participants for a panel of these lipids and were able to correctly identify those who had migraine or who were controls without headache based on these blood lipid levels.

“This study is a very important contribution to our understanding of the underpinnings of migraine and may have wide-ranging effects in diagnosing and treating migraine if the results are replicated in further studies,” said Karl Ekbom, from the Karolinska Institutet in Sweden.

Ekbom noted there were limitations in the study. Only women were included, chronic migraine was not studied and an unusually high amount of participants had migraine with aura.

The study was published in the journal Neurology.

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Tags: Migraine
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