Publications by authors named "Meliha Demiral"

Objectives: Hereditary hypomagnesemia with secondary hypocalcemia (HSH), which results from variations in the transient receptor potential melastatin 6 () genes, is a rare hereditary cause of extremely low serum magnesium levels. We describe an infant with triggered seizures due to hypomagnesemia and a novel mutation in gene was identified.

Case Presentation: A 10-month-old boy presented with multidrug resistant seizures, and axial hypotonia due to severe hypomagnesemia.

View Article and Find Full Text PDF

Objective: Maturity-onset diabetes of the young (MODY) is the most common type of monogenic diabetes. To date, mutations have been identified in 14 different genes of patients with a clinical diagnosis of MODY. This study screened mutations in 14 MODY-related genes and the regulator factor X6 () gene in children.

View Article and Find Full Text PDF

Aim: In this study, it was aimed to examine the clinical and laboratory findings that can be used to predict central precocious puberty (CPP) in cases whose breast development started before the age of 8.

Materials And Methods: The chronological age, anthropometric measurements, bone age (BA), hormone test results and pelvic ultrasonography findings of the cases were recorded. Those with a peak luteinizing hormone (LH) level of ≥5 IU/L in the gonadotropin-releasing hormone (GnRH) stimulation test were classified as CPP and those with a peak LH level of <5 IU/L were classified as prepubertal cases.

View Article and Find Full Text PDF

Early puberty signs lead to an increase in anxiety levels of parents and children. The aim of this study was to investigate the quality of life and anxiety levels of girls and their mothers who were admitted to a pediatric endocrinology clinic with concerns about early puberty. Girls and their mothers who were admitted to endocrinology outpatient clinic with concerns about early puberty were compared to healthy control group.

View Article and Find Full Text PDF

Objectives: Diabetic ketoacidosis (DKA) is a life-threatening acute metabolic decompensation condition due to insulin deficiency and elevation of pancreatic enzymes is common. The goal of this study was to determine the laboratory findings and biochemical characteristics associated with pancreatic enzyme elevation during DKA.

Methods: The files of patients hospitalized in the pediatric intensive care unit with the diagnosis of DKA between March 2020 and 2022 were reviewed retrospectively.

View Article and Find Full Text PDF

Congenital generalized lipodystrophy (CGL) is a rare, autosomal recessive disorder characterized by an almost complete absence of body fat. In CGL, patients may have hyperphagia due to leptin deficiency. Recombinant human leptin (metreleptin) has been suggested as an effective treatment option.

View Article and Find Full Text PDF

Background: Improvement in the quality of life (QoL) of patients with chronic diseases is as important as medical care. This study aimed to evaluate the QoL of children with chronic liver diseases and to determine related factors.

Methods: For this study, 101 children with chronic liver disease, 100 healthy controls, and their parents were included.

View Article and Find Full Text PDF

Objectives: Familial glucocorticoid deficiency (FGD) is a rare autosomal recessive disorder characterised by isolated glucocorticoid deficiency. Melanocortin receptor 2 (MC2R) mediates the functions of adrenocorticotropic hormone (ACTH) in the adrenal cortex. MC2R accessory protein (MRAP) is a transmembrane protein involved in the trafficking of MC2R to the cell surface.

View Article and Find Full Text PDF

Objective: To retrospectively evaluate the follow-up data in patients with 46,XX congenital adrenal hyperplasia (CAH) who were raised male.

Methods: A national database was created. The data of patients were asked to be recorded in the data form.

View Article and Find Full Text PDF

Introduction: Diabetic ketoacidosis (DKA) is the most common cause of acute morbidity and mortality in children and adolescents with type 1 diabetes mellitus (T1DM). Because DKA management is associated with complications, endocrine communities have published guidelines and attempted to set standards for DKA diagnosis and management worldwide. In this study, for the patients followed up in the intensive care unit who have been treated according to DKA protocols, clinical and laboratory characteristics, differences between new and old diagnosed patients, and results of treatment were evaluated.

View Article and Find Full Text PDF

Introduction: P450 oxidoreductase (POR) deficiency is a rare form of congenital adrenal hyperplasia. In both genders, it can lead to ambiguous genitalia, impaired steroidogenesis, and skeletal findings similar to those of Antley-Bixler syndrome.

Cases: We describe two cases of POR deficiency.

View Article and Find Full Text PDF

Objective: Bi-allelic mutations in the cause Wolfram syndrome 1 (WS1 or DIDMOAD) characterized by nonautoimmune diabetes mellitus, optic atrophy, diabetes insipidus, sensorineural deafness, urinary tract abnormalities, and neuropsychiatric disorders. Patients presenting with an incomplete phenotype of WS1 were evaluated using homozygosity mapping and subsequent whole-exome sequencing.

Methods: Four unrelated consanguineous Turkish families, including seven affected children, and their unaffected parents and siblings were evaluated.

View Article and Find Full Text PDF

Context: Biallelic mutations in the PTF1A enhancer are the commonest cause of isolated pancreatic agenesis. These patients do not have severe neurological features associated with loss-of-function PTF1A mutations. Their clinical phenotype and disease progression have not been well characterized.

View Article and Find Full Text PDF

Objective: The prevalence of celiac disease (CD) varies between 1% and 10% in patients with type 1 diabetes mellitus (T1DM). This study aimed to determine the frequency of spontaneous recovery of celiac serology and the biopsy-proven CD (BPCD) frequency in patients with T1DM.

Methods: The data of 668 patients with available celiac serology tests from a total of 779 patients who were followed for the last 10 years with the diagnosis of T1DM were retrospectively evaluated.

View Article and Find Full Text PDF

Neonatal diabetes mellitus (NDM) is a rare form of monogenic diabetes presenting within the first 6 months of life. INS gene promoter mutations have been shown to cause both remitting/relapsing and permanent NDM. We, herein, present three interesting patients with INS gene promoter mutations.

View Article and Find Full Text PDF

Backgrounds Limitations in the evaluation of the pituitary size and changes according to pubertal status make its validity questionable. Recently, in a small-scale study, pons ratio (PR) has been suggested as a more sensitive tool for diagnosis and etiological evaluation of growth hormone deficiency (GHD). The aim of the study is to evaluate the diagnostic value of PR in the diagnosis of GHD.

View Article and Find Full Text PDF

Objective: The aim was to determine the final adult height (FAH) achieved by recombinant human growth hormone (rhGH) treatment, the factors affecting FAH and the success of attaining the genetic potential.

Methods: Data of 133 patients treated with rhGH therapy were reviewed retrospectively. Patients were grouped according to diagnosis, either isolated GH deficiency (IGHD) or multiple pituitary hormone deficiency (MPHD), and by sex, and pubertal status at the beginning of treatment.

View Article and Find Full Text PDF

Objective: The tendency to reduce thyroid stimulating hormone (TSH) referral cut-off values in congenital hypothyroidism (CH) neonatal screening programs has resulted in an increase in the incidence of CH, but also the referral of infants with mild transient elevation of TSH. Therefore, there is a need to develop markers for differentiation of transient elevated TSH and permanent CH as early as safely possible to avoid unnecessary treatment. The aim was to evaluate sixth-month L-thyroxine (LT4) dose as a predictive marker for differentiation of transient elevated TSH and permanent CH.

View Article and Find Full Text PDF

A novel heterozygous IVS11-2A>C(c.1957-2A>C) mutation in the gene is reported. There was an extremely distinct phenotypical expression in two siblings and their father.

View Article and Find Full Text PDF

Background Infantile hepatic haemangiomas (IHHs) produce an excess of the thyroid hormone inactivating enzyme type-3 iodothyronine deiodinase (D3), leading to rapid degradation of thyroid hormones and consumptive hypothyroidism. The L-thyroxine replacement dose in patients with consumptive hypothyroidism is inappropriately higher than that in congenital hypothyroidism. Case presentation A 4-month-old boy presented with abdominal distention.

View Article and Find Full Text PDF

Purpose: Metabolic syndrome (MetS) and obesity have increasingly been reported in survivors of childhood cancer. Osteopontin (OPN) is primarily synthesized in adipose tissue and is thought to have a role in obesity and the development of insulin resistance (IR). The aim of this study was to investigate the frequency of MetS in survivors of acute lymphoblastic leukemia (ALL) and to establish the relationship between serum OPN levels and anthropometric measurements and glucose metabolism.

View Article and Find Full Text PDF

Horner syndrome (HS), caused by an interruption in the oculosympathetic pathway, is characterised by myosis, ipsilateral blepharoptosis, enophthalmos, facial anhydrosis, and vascular dilation of the lateral part of the face. HS is a rare complication of thyroidectomy. A 15-year-old female patient presented with solitary solid and large nodule in the right thyroid lobe.

View Article and Find Full Text PDF

Pseudohypoparathyroidism (PHP) type Ia is characterized by multiple hormone resistance; primarily parathyroid hormone (PTH) resistance and Albright's hereditary osteodystrophy (AHO) which involves skeletal and developmental defects. The AHO phenotype alone without hormone resistance is defined as pseudoPHP. A boy was first diagnosed as having both rickets and primary hypothyroidism at 2.

View Article and Find Full Text PDF