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Nathan Hellman

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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Xanthogranulomatous pyelonephritis

Xanthogranulomatous pyelonephritis (XGP) is a rare but severe complication of chronic UTIs. I think of it (in simplistic terms) as a pyelonephritis so severe that it results in loss of renal function of the affected kidney as well…

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Sodium Thiosulfate for Calciphylaxis

Calciphylaxis is a rare but severe dermatologic condition affecting end-stage renal disease individuals for reasons which remain obscure. Histologic biopsy is the gold-standard for making the diagnosis; it typically demonstrates calcification within the media of small and medium-sized…

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2003 Lupus Nephritis Classification Updates

The World Health Organization (WHO) of lupus nephritis has provided a useful and simple framework for understanding this complex disease. In 2003, a committe of the International Society of Nephrology (ISN) & Renal Pathologic Society (RPS) instituted some…

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MDRD II

Continuing on with a brief discussion of the landmark MDRD Study: at the time of the study, several smaller studies suggested that a low protein diet would prolong time to ESRD for patients with CKD. The theory was…

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MDRD I

The Modification of Diet in Renal Disease (MDRD) Study is one of the landmark papers of Nephrology. The 1994 NEJM paper describing the initial results is freely available, and there are many interesting follow-up studies using the same…

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Treatment Guidelines for Diabetic Nephropathy

Diabetic nephropathy characterizes a huge chunk of any nephrologist’s practice. Some of the issues to tackle with each visit are obvious–e.g., adequate glucose control, minimization of proteinuria, control of blood pressure–and generally much easier to talk about than…

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Just Add Water?

There is a popular belief that drinking lots of water is good for one’s health. One classic recommendation from doctors to patients–nobody knows where it comes from–is to drink 8 glasses of 8 ounces of liquid beverages daily….

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