[New data on the state of the sympathetic-adrenal system in hypertension]. 1982

E V Parfenova, and Z M Kiseleva, and E V Erina

Levels of catecholamines in blood, excretion of DOPA, dopamine, adrenaline and noradrenaline were determined in 99 hypertensive patients and 22 healthy persons. Walking for an hour and intake of L-DOPA in a dose of 3 mg/kg of body mass were used as functional tests. There was noted an increase in activity and reactivity of the sympathoadrenal system at early stages of the disease with its gradual reduction in the courses of the disease. In all the patients, with the exception of stable hypertensive patients with crisis, there was noted an increase in the biosynthesis of dopamine which is considered as a possible compensatory protective mechanism opposing pressor actions. An increase in the biosynthesis of noradrenaline was found at early stages of the disease in people with hyperreactivity and, in particular, in hypertension with crisis. Stable hypertension was characterized by the tendency to a decrease in the biosynthesis of noradrenaline, more expressed in patients with crisis.

UI MeSH Term Description Entries
D006973 Hypertension Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more. Blood Pressure, High,Blood Pressures, High,High Blood Pressure,High Blood Pressures
D007980 Levodopa The naturally occurring form of DIHYDROXYPHENYLALANINE and the immediate precursor of DOPAMINE. Unlike dopamine itself, it can be taken orally and crosses the blood-brain barrier. It is rapidly taken up by dopaminergic neurons and converted to DOPAMINE. It is used for the treatment of PARKINSONIAN DISORDERS and is usually given with agents that inhibit its conversion to dopamine outside of the central nervous system. L-Dopa,3-Hydroxy-L-tyrosine,Dopaflex,Dopar,L-3,4-Dihydroxyphenylalanine,Larodopa,Levopa,3 Hydroxy L tyrosine,L 3,4 Dihydroxyphenylalanine,L Dopa
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D012146 Rest Freedom from activity. Rests
D002395 Catecholamines A general class of ortho-dihydroxyphenylalkylamines derived from TYROSINE. Catecholamine,Sympathin,Sympathins
D002940 Circadian Rhythm The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs or environmental and physiological stimuli. Diurnal Rhythm,Nyctohemeral Rhythm,Twenty-Four Hour Rhythm,Nycthemeral Rhythm,Circadian Rhythms,Diurnal Rhythms,Nycthemeral Rhythms,Nyctohemeral Rhythms,Rhythm, Circadian,Rhythm, Diurnal,Rhythm, Nycthemeral,Rhythm, Nyctohemeral,Rhythm, Twenty-Four Hour,Rhythms, Circadian,Rhythms, Diurnal,Rhythms, Nycthemeral,Rhythms, Nyctohemeral,Rhythms, Twenty-Four Hour,Twenty Four Hour Rhythm,Twenty-Four Hour Rhythms
D005260 Female Females
D005684 Gait Manner or style of walking. Gaits
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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