sensory trigeminal nerve fibers release CGRP. This causes blood vessel dilation and inflammation, which likely results in the pain associated with a migraine. Immunotherapies for migraine, therefore, involve antibodies that target either CGRP or its receptors, blocking the sequence of events that cause pain.
there are three on the market now: erenumab (Aimovig) by Amgen and Novartis; fremanezumab (Ajovy) by Teva, and galcanezumab (Emgality) by Eli Lilly. A fourth drug called eptinezumab, produced by Alder Biopharmaceuticals, just cleared Phase III clinical trials. The antibodies are injected monthly or every few months.
A new group of injectable drugs inhibit a protein thought to trigger migraines, but not all insurance plans cover it -- and many people can’t afford the $575 a month price tag.
#aimovig
😇 #Fremanezumab was effective and well tolerated in patients with difficult-to-treat migraine who had previously not responded to up to four classes of migraine preventive medications.
Scientists in Italy analysed 35 overweight migraine sufferers. The participants tried two low-calorie diets, one of which was ketogenic.
Over the course of one month, the Keto diet caused the patients to suffer three less 'migraine days', on average.
The results even suggested the eating plan is more effective at relieving symptoms than leading drugs, such as erenumab.
Cutting carbs is known to trigger ketosis. This causes the body to break down fat, which leads to the production of substances called ketones.
Ketones have been linked to decreased inflammation, less 'internal stress' and a reduction in the brain 'waves' that are thought to cause migraine aura.
After four weeks, those on the Keto diet experienced 3.7 less 'migraine days' a month than those just on the low-calorie eating plan.
Twenty six of the Keto dieters (74 per cent) also had at least a 50 per cent reduction in the number of 'headache days', compared to just three (eight per cent) on the non-Keto plan.
This is better than the leading migraine drugs, known as CGRP monoclonal antibodies, which cut migraine days in half in around 30-to-48 per cent of sufferers, New Scientist reported.
criteria ในการวินิจฉัยไมเกรนน้องๆคงรู้ดี แต่เชื่อมั้ยว่า 90 % ถ้าคนไข้มาหาเราด้วยอาการปวดหัวที่ ER ถ้าปวดมากๆ สิ่งที่น้องๆนิยมทำคือ diclofenac im เอาจริงๆถ้าเป็นไมเกรนแน่แท้ซักเข้าได้จริงๆ acute management ตามอเมริกัน guideline คือ metoclopramide iv แต่ถ้าเป็น migraine with aura ให้ IV MgSO4 1-2 g in migraine with aura