Efficacy and tolerability of magnesium plus protein for managing hypomagnesemia in pediatric kidney transplant patients

Hepatocyte nuclear factor 1B deletion, but not intragenic mutation, might be more susceptible to hypomagnesemia

AIMS

HNF1B syndrome is caused by defects in the hepatocyte nuclear factor 1B (HNF1B) gene, which leads to maturity-onset diabetes of the young type 5 and congenital organ malformations. This study aimed to identify a gene defect in a patient presenting with diabetes and severe diarrhea, while also analyzing the prevalence of hypomagnesemia and its correlation with the HNF1B genotype.

MATERIALS AND METHODS

Whole exome sequencing was used to identify responsible point mutations and small indels in the proband and their family members. Multiplex ligation-dependent probe amplification was carried out to identify HNF1B deletions. Furthermore, an analysis of published data on 539 cumulative HNF1B cases, from 29 literature sources, was carried out to determine the correlation between the HNF1B genotype and the phenotype of serum magnesium status.

RESULTS

Using multiplex ligation-dependent probe amplification, we identified a de novo heterozygous HNF1B deletion in the patient, who showed dorsal pancreas agenesis and multiple kidney cysts, as detected by magnetic resonance imaging. Magnesium supplementation effectively alleviated the symptoms of diarrhea. Hypomagnesemia was highly prevalent in 192 out of 354 (54.2%) patients with HNF1B syndrome. Compared with patients with intragenic mutations, those with HNF1B deletions were more likely to suffer from hypomagnesemia, with an odds ratio of 3.1 (95% confidence interval 1.8-5.4).

CONCLUSIONS

Hypomagnesemia is highly prevalent in individuals with HNF1B syndrome, and those with HNF1B deletion are more susceptible to developing hypomagnesemia compared with those with intragenic mutations. The genotype-phenotype associations in HNF1B syndrome have significant implications for endocrinologists in terms of genotype detection, treatment decisions and prognosis assessment.

Correction of magnesium deficiency in the body with balneological means: experimental studies

In the modern world, a lack of magnesium in the body is one of the most common deficient conditions in humans. Low levels of magnesium have been associated with a number of chronic diseases. This work is devoted to the study of the effect of the use of the balneological means "Magnesium oil" for the correction of the manifestations of experimentally induced magnesium deficiency. The experiment was conducted on 50 white female rats of the Wistar auto-breeding line which were divided into 3 equal groups: (1) control, (2) model of magnesium deficiency, (3) received "Magnesium oil". As a result of modeling the state of magnesium deficiency, significant changes are observed in the central nervous system, vegetative nervous system, and kidneys of animals. The use of balneological means "Magnesium oil" can significantly reduce the negative manifestations of magnesium deficiency.