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10 augustus 2026: Bron: Nature d.d. 28 juli 2026

Fibromyalgie, een spierziekte die vaak gepaard gaat met pijn, stijfheid en moeheid, blijkt van oorsprong een neurologische ziekte sterk gerelateerd aan de ziekte van Huntington, een chronische en erfelijke ziekte. Van de 26 genen die werden gevonden sprongen GPR52 en gen HTT eruit bij de mensen die Fibromyalgie hadden in vergelijking met de controle groep van 'gezonde' mensen. Zo blijkt uit de grootste genetische studie die ooit is uitgevoerd naar deze ziekte door wetenschappers van het Fred Hutch Cancer Center binnen hun project Chronic Pain Genomics Consortium.

Het onderzoeksteam analyseerde de genetische gegevens van meer dan 2,5 miljoen volwassenen - 54,629 mensen met aangetoonde Fibromyalgie en 2,509,126 'gezonde' mensen - en identificeerde 26 genetische varianten verspreid over het hele genoom die verband houden met Fibromyalgie. De gevonden 26 genmutaties zijn dus stukjes genetische code die vaker voorkomen bij mensen met Fibromyalgie dan bij gezonde personen. 

Door hun bevindingen te combineren met een enorme dataset van 20 miljoen cellen uit verschillende weefsels, vonden de onderzoekers verder bewijs voor een neurologische oorsprong van Fibromyalgie. Genen in de buurt van genetische risicofactoren voor Fibromyalgie waren actiever in zenuwstelselcellen dan in andere celtypen, wat Fibromyalgie onderscheidt van klassieke auto-immuunziekten als bv reuma.

Desondanks concludeerde de studie dat genetica niet de belangrijkste factor is bij het ontwikkelen van Fibromyalgie. De onderzoekers vermoeden dat zelfs mensen met veel genetische varianten voor Fibromyalgie waarschijnlijk een andere risicofactor nodig hebben, zoals een pijnlijke artritis, om Fibromyalgie te veroorzaken.

"Het is cruciaal om te begrijpen hoe genen, blootstelling aan omgevingsfactoren en levensgebeurtenissen gezamenlijk bijdragen aan het risico op het Fibromyalgie syndroom", aldus hoofdonderzoeker Dr. Sinnott-Armstrong. "Verder onderzoek naar de oorzaken van Fibromyalgie en de bijbehorende veranderingen in het zenuwweefsel zal ons helpen te bepalen wat Fibromyalgie veroorzaakt en hoe we het kunnen behandelen."

Fibromyalgie dat vaker bij vrouwen dan bij mannen voorkomt, kenmerkt zich door pijn en gevoeligheid in het hele lichaam, steeds weer op andere plaatsen, vermoeidheid en problemen met slaap, geheugen en depressieve gevoelens. En is tot nu nog geen behandeling voor gevonden. 

Het volledige studieverslag is gratis in t
e zien en gepubliceerd d.d. 28 juli 2026 in Nature. Het abstract is heel summier. 

The genetic architecture of fibromyalgia across 2.5 million individuals


Abstract

Fibromyalgia is a common and debilitating chronic pain syndrome of poorly understood etiology. Here we conduct a multi-ancestry genome-wide association study meta-analysis across 2,563,755 individuals (54,629 cases and 2,509,126 controls) from 11 cohorts, identifying 26 risk loci for fibromyalgia. The strongest association was with a coding variant in HTT, the causal gene for Huntington’s disease. Gene prioritization implicated the HTT regulator GPR52, as well as diverse genes with neural roles, including DCC, DRD2/NCAM1, MDGA2 and CELF4. Fibromyalgia heritability was exclusively enriched within brain tissues and neural cell types. Fibromyalgia showed strong, positive genetic correlation with a wide range of chronic pain, psychiatric and somatic disorders, including genetic correlations above 0.7 with low back pain, post-traumatic stress disorder and irritable bowel syndrome. Despite large sex differences in fibromyalgia prevalence, the genetic architecture of fibromyalgia was nearly identical between males and females. This study provides robust genetic evidence defining fibromyalgia as a central nervous system disorder, thereby establishing a biological framework for its complex pathophysiology and extensive clinical comorbidities.



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