Raynaud's syndrome

Get to know the anti-centromere antibody

September 14, 2021 ·

The anti-centromere antibody rarely comes up in casual conversation. Even doctors are easily confounded by this antibody. Doctors can give confusing or mixed messages regarding a centromere antibody result and this can send even the most levelheaded into a tailspin.

What is a centromere?

We might need to return to high school biology to answer this. Stick with me as we do a quick refresher. The centromere is a piece of DNA that attaches to chromatids to form a chromosome. (!!!) We all have 46 chromosomes or 23 pairs. (Think of “23 and me”) The chromosome is a structure that houses all our DNA. We find this structure in the nucleus of our cells, making, by definition, the centromere antibody an anti-nuclear antibody, or ANA. The anti-centromere antibody, thus, can be positive in those with a positive ANA result. Remember, the ANA blood test is a general, non-specific anti-nuclear antibody blood test while the anti-centromere antibody test is a more specific type of ANA. This then would make a positive centromere antibody result with a negative ANA, very unlikely.

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Raynaud’s Syndrome

June 23, 2021 ·

(Pause while everyone looks down at their own nails)

I learned to include this little pause during my medical student lectures on Raynaud’s Syndrome and Scleroderma. As opposed to many of the other conditions I treat and teach, there is actually a very high likelihood that a handful in the audience will have Raynaud’s. This isn’t surprising given how common it is, especially amongst women between the ages of 15 and 30. It is when discussing the connection between Raynaud’s and Lupus or Scleroderma, that the wave of concern washes over some faces in the audience. What the audience members are looking for are changes in the nail bed capillaries. These changes, can be a sign that their Raynaud’s Syndrome is part of a larger autoimmune condition. Thankfully, most, if not all, will have perfectly normal nail bed capillaries and be able to sit through the rest of the lecture panic-free. But it is always a reminder that even when speaking to trainees and students, I am speaking to patients.

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What is Scleroderma?

June 8, 2021 ·

“Please don’t google this until we have more information.”

That’s not something I often say to my patients. I usually write out diagnoses and treatments, specifically so patients CAN google and research them. The internet is a wild place but I still stand on the side of more information is better than less. Yet, when it comes to scleroderma, I take a different approach. I want to make sure my patients have 1) the right diagnosis and 2) an appropriate perspective on their diagnosis before engaging with, what can be, the scary world of scleroderma online. Because I also know that a scleroderma diagnosis doesn’t have to be that scary.

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