Nathan Hellman
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Nathan Hellman

“The Match”

Beginning in the 2009, Nephrology became one of the final medical subspecialities (along with Endocrinology) to join the Medical Specialties Matching Program (MSMP), a division of the National Residency Matching Program, a.k.a. “The Match.” Prior to this, individual…

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Vitamin D Basics

Sometimes the formulations of vitamin D can get confusing. Here’s a few key points: 1. The terms “vitamin D2” and “vitamin D3” do not refer to the hydroxylation status of vitamin D–either D2 or D3 can exist in…

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hepatitis C & cryoglobulinemia

Prior to the discovery of the hepatitis C virus (viral particles shown on the left), there was an entity termed “essential cryoglobulinemia”–that is, cryoglobulinemia without an obvious explanation.  While this term is still used, the true “essential cryoglobulinemia”…

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ABO Incompatibility Renal Transplant

Although the traditional dogma of kidney transplant would state that ABO incompatibility is an absolute contraindication for a kidney transplant, this is changing:  there are some overall favorable reports of graft longevity in Japan, where cadaveric kidneys are…

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hemojuvelin

Several months back I posted something on hepcidin–the 25 amino acid peptide secreted by the liver which appears to be the “master regulator” of iron metabolism, and whose levels appear to be perhaps increased in ESRD patients, providing…

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Routine Urinalysis Screening?

Is it a good idea to screen the pediatric population at-large for hematuria and proteinuria?   This is  a controversial topic, as generally speaking isolated hematuria or isolated proteinuria are almost always benign findings in pediatric populations, and…

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