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D Palyzová

Publications and source records attributed to D Palyzová.

9 recordsLinked to original sources
PubMed2002

Concentrations of free mg2+, pH and 31P MR metabolite ratios in calf muscles of healthy controls and patients with primary juvenile hypertension.

31P MR spectroscopy was used to measure the signal intensity ratios of high-energy metabolites for the calculation of free cytosolic magnesium concentration [fMg(2+)] and pH in the calf muscles of patients with primary juvenile hypertension and of healthy controls. Surface coil and spectroscopic imaging techniques were used. In patients with hypertension, the concentrations of [fMg(2+)] was 788 +/- 33 micromol/l and intracellular pH was 7.05 +/- 0.02; these values were not significantly different from the results obtained in healthy controls ([fMg(2+)], 776 +/- 21 micromol/l and pH, 7.06 +/- 0.01). Biochemical assays of magnesium in the serum (S-Mg) and in urine (DU-Mg) confirmed this finding. Significant differences in the relative signal intensities of high-energy phosphates between patients with primary juvenile hypertension and healthy controls were observed: a) signal intensity ratios of PCr/Pi, PCr/PbetaATP, PDE/PbetaATP were increased, and b) Pi/PDe, Pi/PATP were decreased. The results were the same irrespective of whether the surface coil method or 31P spectroscopic imaging were employed.

Adolescent↗
PubMed1999

[Mutation in the beta3-adrenergic receptor gene (Trp64Arg) does not influence insulin resistence, energy metabolism, fat distribution and lipid spectrum in young people. Pilot study].

UNLABELLED: A missence mutation Trp64Arg in the beta3-adrenergic receptor gene is associated with obesity, insulin resistance, a lower metabolic rate and the earlier onset of NIDDM but the published results are controversial. We investigated the effect of this mutation on insulin resistance (euglycemic hyperinsulinemic clamp), on fat mass and fat distribution (anthropometry, bioimpedance, CT) and resting metabolic rate (indirect calorimetry), lipid spectrum and other metabolic disturbances in Czech juveniles recruited from juvenile hypertensives (H, n = 68) and controls (C, n = 81). The frequency of this mutation (determined by digestion of 210 bp PCR product with MvaI) was double in H than in C (14.7%, vs. 7.4%) and the carriers of Arg64 allele had sig. higher fasting glucose (H: p = 0.002. C: p = 0.025). Four Trp64/Arg64 and six Trp64/Trp64 men (age 23 +/- 4.2, vs. 22.5 +/- 1.9 y, BMI 26 +/- 5.5, vs. 22.9 +/- 5.1 kg/m2) took part in a detailed pilot study. But no signif. differences (Horn's method) in fasting glucose (4.6 +/- 0.6, vs. 4.9 +/- 0.4 mmol/l), in parameters of insulin resistance (M-value150-180 min. 9.1 +/- 1.1, vs. 8.9 +/- 1.5 mg glucose/kg.min(-1)), resting metabolic rate/lean body mass (RMR/kg LBM: 78.6 +/- 4.6, vs. 85.6 +/- 23.2 kJ/kg), lipid spectrum and other screened parameters were found. The lowest resting metabolic rate (RMR/kg LBM 55.4; 62.6 kJ/kg) was found in brothers (both C, Trp64/Trp64) who highly differ in body constitution (BMI 19.0 resp. 32.4 kg/m2). We suppose that in this case the energy metabolism is probably determined by other genetic loci and does not correlate with body fat mass. CONCLUSION: Our pilot study does not confirm the influence of Trp64Arg mutation in heterozygous carriers on insulin resistance, energy metabolism and lipid spectrum.

Adipose Tissue↗
PubMed1992

[Relation between the HLA system and juvenile hypertension].

As part of research of juvenile hypertension the authors assessed the types of HLA antigens loci A and B in 242 children, adolescents and young adults with asymptomatic primary hypertension. The control group was formed by 300 normotonic blood donors. In the group of hypertonic subjects a significantly higher frequency of HLA-B5 antigen was found and a lower frequency of HLA-B8 and B35. Classification of the group of patients by the type of raised BP revealed the following: in subjects with a variable BP, as compared with the control group, antigens HLA-A1, B8, B35 and B40 were less frequent, in subjects with a permanently elevated blood pressure antigen HLA-B5 was more frequent and conversely antigen HLA-B35 was less frequent than in healthy subjects. From the investigation ensues a probable relationship between the presence of antigen HLA-B5 and the greater risk of the subsequent manifestation of the disease and conversely between the presence of antigen HLA-B35 in subjects at risk and probably a favourable prognosis of blood pressure readings. Contemporary findings cannot yet be considered unequivocal and it will be necessary to test their validity by extending the number of examined subjects.

Adolescent↗
PubMed1991

Dermatoglyphics in juvenile hypertension.

Dermatoglyphics of 172 children and young adults (116 males, 56 females) with hypertension, 13-27 years old, were compared with those of 130 healthy male and 110 female controls. Several differences were observed between the two groups. Hypertensive patients had a somewhat lower frequency of fingertip ulnar loops, higher frequency whorls and a higher total finger ridge count. They also had a somewhat higher mean atd angle, significantly more frequent distal position of the axial triradius (mostly in t' position) and more missing axial triradii compared to controls. The differences between a-b ridge counts, the interdigital, thenar and hypothenar patterns were generally small and sometimes limited to one sex or one hand only. The observed differences seem to indicate a genetic influence in the etiology of essential hypertension.

Adolescent↗
PubMed1990

[Deviations in dermatoglyphic signs in juvenile hypertensives].

In 172 children and young adults aged 13-27 years dermatoglyphic deviations were investigated, as compared with the normal Prague population. The authors tested 116 hypertonic males, as compared with 130 male controls; 110 healthy women were compared with 56 suffering from hypertension. Using classical modern statistical tests, some significant deviations were found in the pathological groups. The authors detected a less frequent prevalence of ulnar loops and more frequent whirls on the fingers of hypertensive patients. The numbers of papillary lines on the fingers were higher, as compared with normal values. Higher "atd" values, although not significantly, were found a more frequent incidence of distal positions of the axial triradius. Deviations of some other signs on the palms such as the number of lines between triradii a and b, patterns in the interdigital spaces, on the hypothenar and thenar were less marked and there were moreover sex-conditioned differences. The observed changes suggest a marked participation of genetic factors in the aetiology of essential hypertension and they can be explained by laws of developmental mechanics of the papillary lines during embryogenesis. Dermatoglyphs, a non-invasive method, could serve as a screening indicator for the follow up of individuals in threatened families.

Adolescent↗