No long-term data are available on the efficacy of glargine insulin in comparison with continuous sc insulin infusion (CSII) in children and adolescents affected by Type 1 diabetes (T1D). Our aim was to compare the 2-yr efficacy of the 2 insulin approaches, in order to know how to best supply basal insulin in these patients. Thirty-six 9 to 18-yr-old consecutive children with at least 3 yr previous T1D diagnosis were enrolled.
View Article and Find Full Text PDFX-linked adrenoleukodystrophy (X-ALD) is an inherited neurodegenerative disorder associated with reduced very long-chain fatty acid beta-oxidation, mainly affecting the nervous system, the adrenal cortex and the testes. The clinical manifestations of hypogonadism, alopecia and the impairment of the enzyme 5alpha-reductase, which converts testosterone into dihydrotestosterone, clearly point to an involvement of androgens in this pathology. The disease is characterized by mutations in the ABCD1 gene, which codes for the peroxisomal ABC half-transporter ALDP, and by a broad range of clinical manifestations.
View Article and Find Full Text PDFLaron Syndrome (LS) represents a condition characterized by GH insensitivity caused by molecular defects in the GH receptor (GHR) gene or in the post-receptor signalling pathway. We report the molecular characterization of two unrelated Italian girls from Sicily diagnosed with LS. The DNA sequencing of the GHR gene revealed the presence of different nonsense mutations, occurring in the same background haplotype.
View Article and Find Full Text PDFBackground & Aims: To assess prevalence of bone mineral density (BMD) reduction and relationship between bone mineral status and anthropometric assessment, nutritional intake and physical activity in adolescents with early anorexia nervosa (AN).
Methods: Fifty-seven consecutive AN patients and 57 healthy controls underwent anthropometric status, bone density, body composition and physical activity evaluations. In AN patients clinical features and nutritional intake were also assessed.
Objective: To verify the prevalence of morpho-volumetric and functional thyroid abnormalities in young patients with Williams syndrome (WS).
Study Design: Ninety-two patients with WS (49 boys and 43 girls, 0.2-17.
Background: In recent onset of type 1 diabetes, the residual beta cell function, assessed by baseline and/or stimulated C-peptide secretion, can be a useful parameter to establish the extension of beta cell destruction. How metabolic parameters at diagnosis influence residual C-peptide secretion is not well established.
Patients And Methods: We analyzed 553 consecutive patients with recent onset (<4 weeks) of type 1 diabetes (250 females and 303 males, mean age 15+/-8 years).
Context: Congenital adrenal hyperplasia (CAH) is a group of autosomal recessive disorders most often caused by enzyme 21-hydroxylase deficiency. Most mutations causing enzymatic deficiency are generated by recombinations between the active gene CYP21 and the pseudogene CYP21P. Only 1-2% of affected alleles result from spontaneous mutations.
View Article and Find Full Text PDFDiabetes Metab Res Rev
March 2007
Background: To investigate serum concentrations of high-sensitive C-reactive protein (CRP) and alpha(1)-acid glycoprotein (AGP) in patients with T1DM, at diagnosis and after 12 months of intensive insulin therapy (T12).
Methods: CRP and AGP were measured in 44 recent onset T1DM patients (26M/18F, mean age 14.9 +/- 9.
Unlabelled: Human growth hormone therapy is allowed in certain clinical conditions according to national healthcare criteria. Growth hormone, however, produces a wide spectrum of effects. Linear growth is only one of the many expected results, and there are interesting possibilities to explore which could provide additional means of improving the quality of life for the ever-increasing numbers of chronic paediatric patients.
View Article and Find Full Text PDFContext: It has been reported that patients with multiple pituitary hormone deficiencies (MPHDs) achieve a greater final height, compared with patients with isolated GH deficiency (IGHD). However, the outcome of patients with permanent GH deficiency (GHD) has not yet been reported.
Objectives: The objectives of the study were to evaluate and compare adult height data and the effect of spontaneous or induced puberty after long-term treatment with GH in young adults with either permanent IGHD or MPHD.
Diabetes mellitus is an increasing complication of cystic fibrosis (CF), as a result of the improved life expectancy. There is clear association between diabetes and increased morbidity and mortality. Lung function and clinical status deteriorate up to 2-4 yr before the diagnosis of CF-related diabetes (CFRD).
View Article and Find Full Text PDFContext: GnRH analogs (GnRHa) are considered the treatment of choice for central precocious puberty (CPP). During GnRHa administration, the suppression of the pituitary-gonadal axis results in decreased rates of linear growth and skeletal maturation and in improved adult height. However, in some patients, the growth deceleration is so marked that the expected improvement in predicted adult height is not achieved.
View Article and Find Full Text PDFObjective: To evaluate the influence of sex as well as pubertal stage at diagnosis on the growth outcome of childhood thyrotoxicosis.
Design: Retrospective, collaborative study.
Patients And Methods: Longitudinal auxological evaluation in 101 patients (M/F 23/78) for 4.
We offer further biological characterization of the XK atelen/aprosencephaly syndrome in two infants, one with prolonged survival, the other presenting prenatally with apparent hydranencephaly and an orbital tumor (OS). Familial occurrence in the former born to presumably nonconsanguineous Lybian parents may represent parental germinal mosaicism or autosomal recessive inheritance. Both had apparently normal chromosomes; however, the Lybian infant had slightly increased induced chromosome breakage suggesting that this rare multiple congenital anomalies syndrome may involve a DNA repair defect.
View Article and Find Full Text PDFBackground: Craniopharyngioma (CP) is the most common intracranial non-glial tumour observed in pediatric age. Although histologically benign and amenable to surgical treatment, its location and relation with vital nervous and vascular structures makes the feasibility of a radical resection difficult even in the microneurosurgery era. Beside the difficulties experienced when performing tumour resection, post-operative complications, such as endocrinological imbalance, represent another point that makes CP total excision a challenge.
View Article and Find Full Text PDFJ Endocrinol Invest
February 2005
The unlimited availability of GH obtained by recombinant DNA technology has allowed optimization of treatment in GH-deficient (GHD) children. At the same time it has prompted a number of studies in conditions not characterized by GHD such as Turner syndrome, intrauterine growth retardation, chronic renal failure and other chromosomal and genetic abnormalities associated with short stature. Several controlled and uncontrolled studies have now reported the adult height of patients with short stature and normal GH secretion.
View Article and Find Full Text PDFBackground/aims: Adrenomedullin (AM) is a recently purified hypotensive peptide and its encoding gene has been sequenced from a human pheochromocytoma. High levels of AM have been shown in Addison's disease (AD). X-linked adrenoleukodystrophy/adrenomyeloneuropathy (ALD/AMN) is a peculiar adrenal insufficiency due to an accumulation of very-long chain fatty acid in adrenal cells and it is very often associated with a devastating demyelination of the central nervous system.
View Article and Find Full Text PDFWe report the molecular findings in 14 patients (12 families) with X-linked adrenoleukodystrophy (X-ALD, MIM# 300100), a well-defined peroxisomal disorder attributed to mutations in the ABCD1 gene on chromosome Xq28. With the aims of determining the spectrum of mutations and developing an efficient molecular genetic test for analysis of at-risk women whose carrier status is unknown, and to offer molecular confirmation of their status to obligate heterozygotes, regardless of their clinical status, we carried out molecular screening by setting up a denaturing high-performance liquid chromatography (DHPLC)-based protocol. We identified eleven hemizygous base changes in ABCD1, including seven new mutations (c.
View Article and Find Full Text PDFObjective: The advantages of continuous subcutaneous insulin infusion (CSII) or insulin glargine have been demonstrated both in adult and paediatric diabetic patients; however, as no data comparing these two approaches during childhood are available, we have examined the efficacy of these two intensive approaches.
Research Design And Methods: We retrospectively evaluated data from 36 diabetic children, who had changed their previous insulin regimen [with isophane insulin (NPH) at bedtime] because of HbA1c levels >8.0%.
X-linked Adrenoleukodystrophy (X-ALD) is a neurodegenerative disease with an endocrinological component since, in addition to the nervous system, the adrenal cortex and the testis are mainly affected, with corresponding clinical signs. 5Alpha-reductase, a key enzyme in steroid hormone metabolism, catalyzes the conversion of testosterone into the potent androgen dihydrotestosterone and other metabolic steps in steroidogenesis. It is present in two isoforms, 5alpha-reductase isoform 1 and 2, that are encoded by different genes.
View Article and Find Full Text PDFActivating mutations of the Gsalpha gene are detected in different endocrine tumors, such as GH-secreting adenomas and toxic thyroid adenomas, and in hyperfunctioning glands from patients with McCune-Albright syndrome (MAS). There is increasing evidence that the Gsalpha gene is subjected to imprinting control and that Gsalpha imprinting plays a key role in the pathogenesis of different human diseases. The aim of this study was to investigate the presence of a parent specificity of Gsalpha mutations in 10 patients affected with MAS and 12 isolated tumors (10 GH-secreting adenomas, one toxic thyroid adenoma, and one hyperfunctioning adrenal adenoma).
View Article and Find Full Text PDF