Familial hypomagnesemia with hypercalciuria and nefrocalcinosis due to a mutation in the CLDN16 gen (Claudina 16). A case report

Authors

  • Reyner Loza Munarriz Universidad Peruana Cayetano Heredia. Lima, Perú. https://orcid.org/0000-0003-1769-9527
  • Fernando Arias Caceres Unidad de Nefrología Pediátrica, Servicios de especialidades, Departamento de Pediatría, Hospital Cayetano Heredia. Lima, Perú.
  • Victor Neyra Chagua Universidad Peruana Cayetano Heredia. Lima, Perú. Laboratorio de Histocompatibilidad y Biología Molecular, Unidad de Trasplante Renal, Hospital Cayetano Heredia. Lima, Perú.

DOI:

https://doi.org/10.20453/rmh.v35i3.5335

Keywords:

Claudin, magnesium deficiency, nephrocalcinosis, kidney transplantation, hypocalcemia

Abstract

We report the case of a girl with a history of seizures associated with persistent severe hypomagnesemia, hypocalcemia, hypercalciuria,  accompanied by alterations in renal function, metabolic acidosis and Nephrocalcinosis with progression to stage 5 chronic kidney disease (CKD) with a family history of chronic kidney disease, kidney stones and consanguinity of the parents, which is why the genetic study was carried out, resulting in a pathogenic mutation in homozygosity c.446 G>A (p.R149Q) located in exon 3 of the CLDN16 gene, which allows etiological diagnostic confirmation of a case of  Hypomagnesemia Familial with Hypercalciuria and Nephrocalcinosis (HFHNC), without severe ocular defects. In addition , the post-transplant evolution with good graft survival is presented.

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Author Biographies

Reyner Loza Munarriz, Universidad Peruana Cayetano Heredia. Lima, Perú.

                          

Fernando Arias Caceres, Unidad de Nefrología Pediátrica, Servicios de especialidades, Departamento de Pediatría, Hospital Cayetano Heredia. Lima, Perú.

Pediatric Nephrology Unit, Specialty Services, Department of Pediatrics, Hospital Cayetano Heredia. Lima Peru.

Victor Neyra Chagua, Universidad Peruana Cayetano Heredia. Lima, Perú. Laboratorio de Histocompatibilidad y Biología Molecular, Unidad de Trasplante Renal, Hospital Cayetano Heredia. Lima, Perú.

Molecular biologist; Master in Molecular Biology Doctor in Biochemistry and Molecular Biology; Professor Schedule Peruvian University Cayetano Heredia

References

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Published

2024-09-27

How to Cite

1.
Loza Munarriz R, Arias Caceres F, Neyra Chagua V. Familial hypomagnesemia with hypercalciuria and nefrocalcinosis due to a mutation in the CLDN16 gen (Claudina 16). A case report. Rev Méd Hered [Internet]. 2024 Sep. 27 [cited 2024 Oct. 7];35(3):157-61. Available from: http://44.198.254.164/index.php/RMH/article/view/5335

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