Simple Formula for pH/Impedance Probe Positioning in Children-Time to Update Standard Practice?

Objective: To develop a novel formula for pH probe placement with adequate accuracy.

Methods: Children (3-18 y) undergoing pH-metry were prospectively evaluated. Their height and corrected pH probe position under X-ray (2 vertebrae above the diaphragm) was recorded and the linear-regression analysis was performed to derive a novel formula.

[“Silent” iodine prophylaxis only partly corrects iodine deficiency: the Hungarian story (1970–2020)].

Összefoglaló. A szerző a bevezetőben emlékeztet a több mint 50 évvel korábbi publikációjára (Orv Hetil. 1968; 109: 360-363) és annak utóéletére: az 1970-es években megállt a jódprevenció fejlődése.

Analysis of selected genes associated with cardiomyopathy by next-generation sequencing.

Background: As the leading cause of congestive heart failure, cardiomyopathy represents a heterogenous group of heart muscle disorders. Despite considerable progress being made in the genetic diagnosis of cardiomyopathy by detection of the mutations in the most prevalent cardiomyopathy genes, the cause remains unsolved in many patients. High-throughput mutation screening in the disease genes for cardiomyopathy is now possible because of using target enrichment followed by next-generation sequencing.

[Combined l-thyroxine and l-triiodothyronine replacement therapy in congenital hypothyroidism].

Introduction: L-thyroxine replacement therapy is the treatment of choice for hypothyroidism. Recently, several studies suggested to complete it with l-triiodothyronine in acquired hypothyroidism.

Aim: To study the role of combined l-thyroxine and l-triiodothyronine therapy in special cases with congenital hypothyroidism.

Three-year efficacy and safety of LB03002, a once-weekly sustained-release growth hormone (GH) preparation, in prepubertal children with GH deficiency (GHD).

Background: GH treatment currently requires daily sc injections, resulting in suboptimal compliance. A GH regimen with fewer injections may offer patients and caregivers a less arduous option. LB03002 is a novel sustained-release GH formulation for once-weekly dosing.

Photodynamic Therapy with Hypericin Improved by Targeting HSP90 Associated Proteins.

In this study we have focused on the response of SKBR-3 cells to both single 17-DMAG treatment as well as its combination with photodynamic therapy with hypericin. Low concentrations of 17-DMAG without any effect on survival of SKBR-3 cells significantly reduced metabolic activity, viability and cell number when combined with photodynamic therapy with hypericin. Moreover, IC concentation of 17-DMAG resulted in significant increase of SKBR-3 cells in G1 phase of the cell cycle, followed by an increase of cells in G2 phase when combined with photodynamic therapy.

Congenital disorders of the thyroid: hypo/hyper.

This article summarizes the ontogenesis and genetics of the thyroid with regards to its possible congenital dysfunction and briefly refers to the roles of the mother-placenta-fetal unit, iodine effect, and organic and functional changes of the negative feedback mechanism, as well as maturity and illness, in some forms of congenital hypo- and hyperthyroidism. This article also describes the published literature and the authors' data on the clinical aspects of congenital hypothyroidism, on the alternating hypo- and hyperthyroidism in the neonatal period, and on neonatal hyperthyroidism.

Photoactivated hypericin induces downregulation of HER2 gene expression.

Photodynamic therapy is an alternative method for cancer treatment in which a photosensitizer exposed to a light source of suitable wavelength is excited and can subsequently react through free radical mechanisms. Recently, oxygen free radical-mediated changes in gene expression have been established. The present study shows the effect of photoactivated hypericin on the expression of the human epidermal growth factor receptor 2 (HER2) oncogene at both the mRNA and the protein level in SKBR-3 and MCF-7 breast adenocarcinoma cell lines.

Impact of 2 doses of clorgyline on the rat preimplantation embryo development and the monoamine levels in urine.

We have evaluated the impact of chronic administration of clorgyline, a potent monoamine oxidase A inhibitor and a former antidepressant, on the preimplantation embryo development in Wistar rats. Females were injected intraperitoneally daily for 30 days with saline (control animals), or with a low-dose clorgyline (LDC, 0.1 mg/kg per d) or with a high-dose clorgyline (HDC, 1 mg/kg per d).

Down-regulation of Bcl-2 and Akt induced by combination of photoactivated hypericin and genistein in human breast cancer cells.

Presented experiment considers combination of genistein and photodynamic therapy with hypericin with a view to achieve higher therapeutic outcome in human breast adenocarcinoma cell lines MCF-7 and MDA-MB-231, both identified in our conditions as photodynamic therapy resistant. Since genistein is known to suppress Bcl-2 expression, we predicted that photodynamic therapy with hypericin might benefit from mutual therapeutic combination. In line with our expectations, combined treatment led to down-regulation of Bcl-2 and up-regulation of Bax in both cell lines as well as to suppression of Akt and Erk1/2 phosphorylation induced by photoactivated hypericin in MCF-7 cells.

Congenital disorders of the thyroid: hypo/hyper.

This article summarizes the ontogenesis and genetics of the thyroid with regards to its possible congenital dysfunction and briefly refers to the roles of the mother-placenta-fetal unit, iodine effect, and organic and functional changes of the negative feedback mechanism, as well as maturity and illness, in some forms of congenital hypo- and hyperthyroidism. This article also describes the published literature and the authors' data on the clinical aspects of congenital hypothyroidism, on the alternating hypo- and hyperthyroidism in the neonatal period, and on neonatal hyperthyroidism.

Pharmacokinetic and pharmacodynamic profile of a new sustained-release GH formulation, LB03002, in children with GH deficiency.

Objective: LB03002 is a novel, sustained-release recombinant human GH, developed for once-a-week s.c. injection.

Thyroid dysfunction in the offspring of mothers with autoimmune thyroid diseases.

Unlabelled: An integrated three-compartment thyroid model exists during gestation: pregnancy influences thyroid function in several ways, the placenta plays an active role in TRH-thyroid and iodide transport and metabolism, and the fetus develops its own hypothalamic-pituitary-thyroid axis. This commentary reviews some basic and new data, especially in the maternal-offspring relationship in the case of maternal autoimmune thyroid diseases.

Conclusion: The careful control of maternal autoimmune thyroid disease is essential in order to avoid pathological changes in the offspring.

Sex steroid replacement during and after the induction of puberty.

The main aim of sex steroid replacement during induction of puberty is to obtain a balance between healthy psychological and somatic development and optimal final height and peak bone mass (PBM). At present, the age at which it is considered appropriate to begin inducing puberty is younger than it was in the past. This trend aims for optimisation of prepubertal and pubertal growth through earlier onset of growth hormone (GH) therapy and administration of higher doses during puberty as necessary.

[Incidence of thyroid disorders in children in Hungary].

Author gives information to the home tendencies of incidence of some important thyroid disorders in childhood mainly on the basis of his studies done with his coworkers. Results are compared with the standpoints raised since Chernobyl accident. It is verified on the basis of cca one million neonatal TSH screening that the frequency of congenital hypothyroidism in Hungary corresponds to those of European countries in the last 17 years.