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Biomedical subjects

J Hurjui

Publications and source records attributed to J Hurjui.

At least 19 recordsLinked to original sources
PubMedDate not supplied

[Recent data about the LDL-atherogenesis relationship].

The steps în pathophysiology of ATS make easier the understanding of waves of processes that lead to the disfunction of the endothelial cells, hypertrophy of the arterial wall and în the end to the complication which drawn from this process. Atherogenic process which is characterised by proaterofenethic and atherogenetic mechanism imbalance suppose three phases: early, transition and terminal phase. The initial phase involve the focal influx and LDL-cholesterol accumulation în the arterial intima, the ROS (reactive oxygen species) and azot generation by smooth muscular cells, macrophages and endothelial cells and oxidative modification of LDL. Scientific data revealed that LDL oxidation is mediated by peroxinitrite (ONOO) anion which could act directly over the thiol groups or indirectly through OH and NO radicals from peroxinitrous acid breakdown and who initiate the polyunsaturated fatty acids peroxidation and the oxidation of apolipoprotein B-100. LDL completely oxidated are recognised by scavenger receptors which are not regulated by up and down regulation. The last event of the early atherogenic process is the formation of foam cells from macrophages through LDL modified captation by scavenger receptors.

Arteriosclerosis↗
PubMedDate not supplied

[Role of calcium and magnesium ions in cerebrospinal fluid in alcoholic-traumatic coma].

The goal of investigation was to determine the role of calcium and magnesium ions in the cerebrospinal fluid in ethylic-traumatic coma. We measured the level of calcium in the cerebrospinal fluid within simple photometric test and the magnesium level within xylidyl blue photometric test. We found a high mortality in patients with high level of calcium in cerebrospinal fluid and low level of magnesium in cerebrospinal fluid. At patients with ethylic-traumatic coma high levels of calcium in cerebrospinal fluid are caused by the excitatory amino acids cascade and increased of hematoencephalic barrier permeability. Decreased levels of magnesium in cerebrospinal fluid are associated with convulsions and a poor prognosis of the patients. These analyses are very important for establishment of prognosis in patients with ethylic-traumatic coma.

Adult↗
PubMedDate not supplied

[Sudden death in organophosphoric poisoning--an unaccountable pathophysiologic mechanism?].

UNLABELLED: Sudden death related in literature to appear in IV-th - VIII-th day from organophosphoric intoxication does not have an unanimous accepted physiopathologic explanation. PURPOSE: Pharmacodynamic study of myocardial trichlorfon level in acute experiment. MATERIAL AND METHOD: Gas chromatographic determination of myocardial trichlorfon quantity in an experiment on white, male Wistar rats, daily sacrificed for the heart, until the tenth day from an digestive administration of a dose of 200mg/kg trichlorfon. RESULTS (mcg/g myocardial tissue): I day = 8, II day = 13.63, III day = 15, IV day = 18.96, V day = 19.6, VI day = 20.83, VII day = 21.21, VIII day = 21.33, IX day = 19.69, X day = 19.41. CONCLUSIONS: An organophosphoric direct toxic mechanism is suggested, through accumulation over time of a certain level of myocardial concentration.

Animals↗
PubMedDate not supplied

[Epidemiological observations on the significance of the relations between elevated values of essential arterial pressure in schoolchildren and their parents].

The results of an epidemiological screening of 1,228 parents and 614 children, pupils in the V-XII forms of 12 schools of different types, are presented. It is suggested that when parents present elevated blood pressure values their children, although normotensive, are at high risk, especially in case more risk factors are present. The relation hypertensive parents--hypertensive offsprings was strongly significant. In the hypertensive children with normotensive parents the high frequency of some life-style dependent risk factors is discussed. The relationship between risk factors and morbidity by essential hypertension both in parents and their offsprings and the need of primary and secondary prevention programs for pupils are underlined.

Adult↗
PubMedDate not supplied

[Epidemiology of essential arterial hypertension in collectives of schoolchildren. The prevalence of blood pressure changes].

7,917 pupils in schools, between 10-19 years old, of both sexes, were investigated within an epidemiologic screening, performed in the school milieu, for detecting the prevalence of some risk factors (RF) and of the AT modifications with a view to work out the programmes for the essential arterial hypertension (EAHT) primary prevention. 84.4% of all the pupils in the Vth--VIIIth forms and 93.9 pupils in the IXth--XIIth forms were included in the screening. 422 cases of labile arterial hypertension (LAHT) (5.1%) and 457 of benign arterial hypertension (BATH) (54%) were found. In the children with normal arterial hypertension (NAHT) the following were recorded: 46.5% increases only of the diastolic tension: 44.0% of the systolic-diastolic and 7.1% of the systolic tension respectively. Although present, the differences between the LAHT and BAHT prevalence in the gymnasiums (4.3% and 5.4%) and lyceums (5.5% and 6.4%) are not significant and might be functions of: age, sex, psychomotor development, structure of the respective collectivities, the momentary psychoemotional reactions, lability of the blood pressure, specific to the childhood, several screening difficulties etc. The observations made on the prevalence of the growth of the AT values were correlated with the occurrence at some significant levels of the RF, suggesting the measures to be taken for the steady improvement of the primary and secondary prophylaxis of EAHT in schools.

Adolescent↗
PubMedDate not supplied

[Intervention associated with risk factors for essential arterial hypertension. II. Epidemiologic observations of schoolchildren].

Based on an epidemiological screening of 6411 pupils from 7 schools of different types, the frequency and intensity of the association of 8 risk factors for essential hypertension in a series with increased blood pressure values and in a normotensive one was compared. The frequency of the various studied risk factors was significant especially in the pupils with increased blood pressure values. The average number of risk factors in the two series was unsignificant. The intensity of 2, 3 or 4 risk factors different associations was more marked in the pupils with increased blood pressure values than in the controls. Some risk factors proved to be more frequently involved in multifactorial associations. The importance of such studies for the elaboration of prevention programmes in underlined.

Adolescent↗
PubMedDate not supplied

[Essential arterial hypertension in patients with non-insulin-dependent diabetes mellitus during and after balneotherapy followed-up for 6 years].

The statistical correlations between body weight, glycemia, total lipids, cholesterol in 200 patients with essential hypertension, especially borderline essential hypertension, followed up for 6 years indicate that the complex environmental factors in Slănic-Moldova Health Resort associated with balneotherapy may induce a return to normal values of the above mentioned parameters. Good results were also obtained in the patients with essential hypertension and non-insulin dependent diabetes mellitus, their treatment including reduction diets (1200-1400 calories/day).

Balneology↗