Journal of pediatric genetics最新文献

In this article, parents' supernatural beliefs on causes of birth defects were reviewed and discussed from Islamic perspective to draw attention to the importance of supernatural powers in Islamic teachings. Birth defects have been known since ancient ages and many people with different birth defects, who lived in antiquity, have been described. Although reasons for birth defects given in early medieval, 13th, 16th, and 21st centuries medical texts showed differences, numerous people in different cultures of the world have believed the effects of supernatural powers can cause birth defects since early medieval ages. Sixteenth century medical authors associated biomedical explanations with social upheavals and theology in order to understand the individual sins and the signs of the times presented by Allah through malformed human births. However, there is no religious phrase mentioning about causes of birth defects in medical textbooks of the 21st century. Based on the Islamic teachings, we would like to emphasize that supernatural beliefs including "Allah's will and qadar," "a test from Allah," "a punishment from Allah," "nazar (evil eye)," "sihr (magic or sorcery)," and "jinn possession" believed by parents as a cause of birth defects are right, real, and true, and not superstition or misconception. The Quran says "everything is determined by Almighty Allah" and "no kind of calamity can occur, except by the leave of Allah." So, we strongly believe that religious teachings must be integrated into modern medicine. The need for religion is not only for Muslims but also for all people a need of pre-eternity and posteternity. The unfortunate humanity today suffers in great pain from the constant sorrow and disasters of being deprived of the religion blessing.

Biotinidase (BTD) deficiency is a rare autosomal recessive metabolic disorder caused by insufficient biotin metabolism, where it cannot recycle the vitamin biotin. When this deficiency is not treated with supplements, it can lead to severe neurological conditions. Approximately 1 in 60,000 newborns are affected by BTD deficiency. The BTD deficiency causes late-onset biotin-responsive multiple carboxylase deficiency, which leads to acidosis or lactic acidosis, hypoglycemia, and abnormal catabolism. BTD deficiency is of two types based on the amount of BTD Enzyme present in the serum. A wide range of pathogenic mutations in the BTD gene are reported worldwide. Mutations in the BTD gene lead to profound and partial BTD deficiency. Profound BTD deficiency results in a severe pathogenic condition. A high frequency of newborns are affected with the partial deficiency worldwide. They are mostly asymptomatic, but symptoms may appear during stressful conditions such as fasting or viral infections. Several pathogenic mutations are significantly associated with neurological, ophthalmological, and skin problems along with several other clinical features. This review discusses the BTD gene mutation in multiple populations detected with phenotypic features. The molecular-based biomarker screening is necessary for the disease during pregnancy, as it could be helpful for the early identification of BTD deficiency, providing a better treatment strategy. Moreover, implementing newborn screening for the BTD deficiency helps patients prevent several diseases.

Chromatinopathy is an emerging category of multiple malformation syndromes caused by disruption in global transcriptional regulation with imbalances in the chromatin states (i.e., open or closed chromatin). These syndromes are caused by pathogenic variants in genes coding for the writers, erasers, readers, and remodelers of the epigenetic machinery. Majority of these disorders (93%) show neurological dysfunction in the form of intellectual disability. Other overlapping features are growth abnormalities, limb deformities, and immune dysfunction. In this study, we describe a series of children with six common chromatinopathy syndromes with an aim to develop pattern recognition of this emerging category of multiple malformation syndromes.

Fibropolycystic diseases of the liver comprise a spectrum of disorders affecting bile ducts of various sizes and arise due to an underlying ductal plate malformation (DPM). We encountered a previously unreported variant of DPM, the hilar fibropolycystic disease which we diagnosed in the explant liver. A 2-year-old boy was referred for liver transplantation with a diagnosis of biliary atresia (BA) and failed Kasai portoenterostomy (KPE). He had cirrhosis with portal hypertension along with synthetic failure indicated by coagulopathy and hypoalbuminemia. The child underwent liver transplant successfully. The explant liver had fibropolycystic disease confined to the perihilar liver and hilum. No pathogenic mutation was detected by whole exome sequencing. Fibropolycystic liver disease may represent a peculiar anatomical variant, which can be diagnosed by careful pathological examination of the explant liver. The neonatal presentation of hilar fibropolycystic liver disease can be misdiagnosed as BA.

[This corrects the article DOI: 10.1055/s-0040-1716829.].

Congenital nonsyndromic hearing loss (NSHL) has been considered as one of the most prevalent chronic disorder in children. It affects the physical and mental conditions of a large children population worldwide. Because of the genetic heterogeneity, the identification of target gene is very challenging. However, gap junction β-2 ( GJB2 ) is taken as the key gene for hearing loss, as its involvement has been reported frequently in NSHL cases. This study aimed to identify the association of GJB2 mutants in different Indian populations based on published studies in Indian population. This will provide clear genetic fundamental of NSHL in Indian biogeography, which would be helpful in the diagnosis process.