Journal Article Summary
The article discusses a case of an infant diagnosed with thin basement membrane nephropathy (TBMN), a condition typically associated with benign familial hematuria. TBMN is generally thought to have a good prognosis, especially in young children, and is not commonly linked to nephrotic-range proteinuria. Understanding this condition is important because while TBMN is often mild, the presence of significant proteinuria can indicate a more serious underlying issue, such as autosomal-dominant Alport syndrome, which has a worse long-term outlook.
In this case, a previously healthy 3-year-old boy presented with microhematuria and nephrotic-range proteinuria. A kidney biopsy showed thinning of the glomerular basement membrane, and genetic testing identified a new heterozygous mutation in the COL4A4 gene. The child was treated with lisinopril for 1.5 years, which successfully resolved his symptoms. At a follow-up appointment at age 6.5, his kidney function and urinalysis results were normal, although he experienced some transient proteinuria and hematuria during other illnesses.
The study has limitations, including the focus on a single case, which may not represent the broader population of TBMN patients. It is essential for patients and caregivers to discuss any symptoms of proteinuria or hematuria with a healthcare professional, as these can indicate varying degrees of kidney issues. Understanding the potential for transient symptoms in TBMN can help in managing expectations and ensuring appropriate follow-up care.
Medication Safety Note
This journal article summary is provided for educational purposes only and is not medical advice. Always consult a licensed healthcare professional before starting, stopping, or changing any medication.
Article Cited
- Ishimori Shingo, Kaito Hiroshi, Hara Shigeo, Nakanishi Koichi, Yoshikawa Norishige, Iijima Kazumoto. Nephrotic-range proteinuria in an infant with thin basement membrane nephropathy. CEN Case Reports 2013. DOI: 10.1007/s13730-013-0063-4. PMID: 28509291. PMCID: PMC5411551.
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