Is There a Relationship Between MS, Allergies and Histamine?

By: Matt Cavallo 

Spring is in the air. So is pollen. With the pollen, my seasonal allergies are in full bloom. I am still sneezing from the last time I stopped to smell the roses. With my seasonal allergies at their peak, I wondered: is there a correlation between multiple sclerosis and allergies?

When I started my research, I was instantly disappointed. All of the initial research pointed to no correlation between MS and allergies. In fact, a 2011 study by the National Center for Biotechnology Information (NCBI) titled, Association between allergies and multiple sclerosis: a systematic review and meta-analysis, concluded that there was no connection between allergic diseases and MS.

While the initial research suggested no direct correlation between MS and allergies, the deeper I dug, a relationship between histamine and multiple sclerosis started to evolve. According to the Encyclopedia Britannica, histamine is a “biologically active substance found in a great variety of living organisms…In an allergic reaction—the immune system’s hypersensitivity reaction to usually harmless foreign substances (called antigens in this context) that enter the body—mast cells release histamine in inordinate amounts.” The definition goes on to explain that the antigens can cause inflammation. After reading this research, my questions became: Does the inflammation caused by these antigens contribute to MS symptoms? And is this partly why I feel worse when my allergies are at their peak?

My questions lead me to research more about histamine and MS. As it turns out there are research studies ongoing exploring the relationship between MS and histamine. A study of histamines and MS on Science Daily found an “unexpected connection between pathways involved in autoimmunity and allergy and suggests previously unrecognized connections between these very different types of immune responses.” The NCBI concluded in a 2013 study, Elevated CSF histamine levels in multiple sclerosis patients, that MS patients had higher histamine levels than the control group and that further exploration was needed.

I am not a scientist, nor am I a doctor. I’m just a guy with MS and bad seasonal allergies. I know that when I feel crummy due to my allergies, that my MS symptoms seem to flare. There are two sides to the argument: one suggests no relationship between MS and allergies, the other suggests that a key immune response to allergies, histamine, may play a role in multiple sclerosis. Until they are able to figure it out, I’m still not going to stop and smell the roses. Hopefully with science and research, one day I will be able to.

Resources:
http://www.ncbi.nlm.nih.gov/pubmed/20456246
http://www.britannica.com/EBchecked/topic/267004/histamine
http://www.sciencedaily.com/releases/2011/01/110131133317.htm
http://www.ncbi.nlm.nih.gov/pubmed/23659456

*Matt Cavallo was diagnosed with multiple sclerosis in 2005. Matt is an MS blogger, author, patient advocate, and motivational speaker. Matt also has his Master’s degree in Public Health Administration. Matt is the proud father of his two sons, loving husband to his wife, Jocelyn, and best friend to his dog, Teddy. Originally from the Boston suburbs, Matt currently resides in Arizona with his family. To learn more about Matt, please visit him at : http://mattcavallo.com/blog/

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Comments

  • GN Glaser says:

    you are definitely on to something. My allergies kicked in big time yesterday and today I feel like I’m having an exacerbation! I haven’t felt this bad in years.

  • Janet says:

    I just saw this post. I suffered from bad hives for years, couldn’t work out what I was allergic to. Became pregnant for the first time. The hives stopped and I was diagnosed with ms at 5 months after experiencing a tingling sensation and weakness in my legs. Haven’t had hives since. I’m convinced there’s a link.

  • Casey says:

    My allergies have become much worse since being diagnosed with MS. I’m on several allergy medication without a ton of relief, I only had trouble couple times of year until diagnosis. But, have noticed when I have worsening of allergy symptoms I also have worsening of MS symptoms. Have just started putting this together. Had a terrible allergy flare last thursday and now on IC steroid course for MS. Definitely worth looking into, very interesting!

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