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Biomedical subjects

G Oroszlán

Publications and source records attributed to G Oroszlán.

At least 19 recordsLinked to original sources
PubMed1995

[Vertical transmission causing hepatitis C in a newborn infant].

There is a case report of an intrauterine growth retarded infant who was suffering of sepsis caused by Klebsiella pneumoniae. An exchange transfusion was carried out because of hyperbilirubinaemia on the 5th day of life. 10 days later high bilirubin concentration was observed again parallel to the liver enzyme abnormalities. HCV-related antibodies were detectable in the sera of the newborn and his mother as well. The results of analysis of HCV RNA with the polymerase chain reaction in the infant and his mother suggest vertical transmission of HCV infection. This is the first case of HCV infection in the newborn caused by vertical transmission in Hungary.

Bilirubin↗
PubMed1992

[D-penicillamine: old drug, new indication? D-penicillamine reduced pulmonary hypertension induced by free radicals].

Pulmonary hypertension is one of the major problems in the neonatal period. Free oxygen radicals play important role in the activation of pulmonary vasoconstriction. Since D-penicillamine has proved to be a strong antioxidant in newborns it was of interest to investigate the effect of the drug in the oxygen radical induced pulmonary hypertension. According to our animal experiments D-penicillamine inhibits the xanthine oxidase induced pulmonary hypertension in piglets. The same inhibitory effect was observed in the prostanoid metabolism. Could D-penicillamine be used in the treatment of pulmonary hypertension in the newborn?

Animals↗
PubMed1992

[Hemorrhagic shock and encephalopathy].

Levin et al. described a new syndrome called haemorrhagic shock and encephalopathy in 1983. The authors present a case report and give an overview about the disease. They summarize the informations published recently.

Brain Diseases↗
PubMed1990

[Serum cortisol and ceruloplasmin determination in neonates with intrauterine growth retardation].

The authors have shown recently that coeruloplasmin deficiency was associated with severe respiratory distress in premature neonates. In the present study they measured the serum cortisol and coeruloplasmin levels in 58 intrauterine growth retarded infants. The results were compared to the data of 44 appropriate for gestational age neonates. Both parameters showed association with the fetal distress in term babies (cortisol: 17.2 vs 12.3 ug/100 ml, coeruloplasmin: 29.7 vs 11.9 U/l). Coeruloplasmin activity was also higher in growth retarded prematures (48.5 vs 16.5 U/l), while cortisol concentration increased irrespective of intrauterine malnutrition. There was a significant positive correlation between serum cortisol and coeruloplasmin in dysmaturity. This is the first report suggesting a possible role for coeruloplasmin, an important extracellular antioxidant enzyme in the precocious development of intrauterine growth retarded infants.

Ceruloplasmin↗
PubMed1989

[Prenatal lead blood levels in a city heavily exposed to lead].

The blood lead concentrations were measured in 38 pregnant women and their newborn babies in a high exposure area. The lead content of human milk was also determined on the 5th day after delivery. The blood lead concentrations were higher than 12 micrograms/100 ml in more than 80 per cent of the samples. The lead content of breast milk was also greater than those of published recently. We found a strong correlation between the blood lead levels of the mothers and the newborns. There was a moderate correlation between the lead concentrations in the blood and the breast milk.

Air Pollutants↗
PubMed1987

The pharmacokinetics of D-penicillamine in neonates.

The pharmacokinetics of D-penicillamine in premature babies was studied. The metabolism of the drug was characterized by a long half-life (115 min) with a low plasma clearance (2.84 ml/min/kg body weight) in contrast to adults. The mean volume of distribution (649/ml/kg body weight) was similar to that of adults.

Half-Life↗
PubMed1987

Antenatal corticosteroid increases serum ceruloplasmin activity in premature neonates.

Serum ceruloplasmin activity in full term and premature neonates was measured on the first day of life. Preterm newborns were born more than 24 hours after antenatal corticosteroid treatment, had enzyme activity equivalent to that of the full term babies. Little or no ceruloplasmin activity was found in those prematures who were born without steroid prophylaxis. Highly significant correlation was observed between the initial ceruloplasmin activity and the morbidity and mortality of respiratory distress syndrome.

Adult↗
PubMed1987

One year longitudinal follow-up of premature infants treated with D-penicillamine in the neonatal period.

A prospective controlled trial has recently been reported to show the effectiveness of D-penicillamine (DPA) in the prevention of retinopathy of prematurity (ROP) among infants less than 2000 g birth-weight. The present paper is a comprehensive overview of a cohort of 204 prematures enrolled in the above study, with respect to mortality and outcome. Survival rate in the DPA treated group was the same as of those receiving conventional therapy. When the outcome of the DPA treated and the control infants was compared in terms of both major and minor impairments, the frequency of disabled and handicapped infants was higher in the control group. The same was observed with respect to the number of repeated hospital treatments, which was significantly higher among the control babies. The results suggest that DPA effectively prevents ROP among very-low-birth-weight infants, and also that the drug has no adverse effect on either mortality or late development.

Child Development↗
PubMed1986

Effects of various thiols on paraquat toxicity.

It was demonstrated that cysteine and D-penicillamine are able to replace reduced glutathione to some extent in the glutathione peroxidase reaction. An in vivo study was made of the role played by--SH compounds in the antioxidant enzyme system involved in the detoxication of the LD50 of paraquat (PQ), and hence of their role in the detoxication of PQ. The effectiveness was D-PA greater than GSH greater then Cys in the liver and GSH greater than Cys greater than D-PA in the lung.

Animals↗
PubMed1986

Controlled trial of D-penicillamine to prevent retinopathy of prematurity.

204 infants with birthweights between 751 and 2000 g and 26-35 weeks gestational age (100 treated and 104 control subjects) were enrolled in a prospective controlled trial of the effectiveness of D-penicillamine (DPA) in the prevention of retinopathy of prematurity (ROP). The two groups did not differ significantly in gestational age, birth weight, Apgar scores, the time of exposure to oxygen and in the incidence of PDA or in the number of exchange transfusions and RBTs. Of the treated infants 29, and of the control infants 34 died before the tenth week of life. These cases were not included in further analysis. Patients were subsequently examined and assessed by two ophthalmologists independently, who did not know which babies were receiving DPA. Six of the 70 surviving control infants and none of the 71 surviving treated infants had ROP stage II or graver. The results suggested that ROP may effectively be prevented with DPA in very low-birth-weight-infants, and that the drug has no serious adverse effects during the neonatal period.

Clinical Trials as Topic↗