Biomedical subjects
A N Nazarov
Publications and source records attributed to A N Nazarov.
[Pathogenesis and treatment of arterial hypertension in hypothyroidism patients].
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[Nodular adrenocortical dysplasia in a girl with Cushing's syndrome and echinococcosis].
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[Controlling fascioliasis in ruminants].
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[Status of endemic goiter in the USSR].
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[Potential for the clinical use of intranasal rifathyroin for diagnosis and treatment].
It has been shown that stimulated TSH and prolactin levels in intranasal administration of rifathyroin are comparable with the results of i.v. administration of the drug. Intranasal administration can be used for both therapeutic and diagnostic purposes.
[Functional state of the hypothalamo-hypophyseal-thyroid system in euthyroid hyperplasia of the thyroid gland].
Function of the hypothalamo-hypophyseal-thyroid system was investigated in 51 patients with euthyroid hyperplasia. Basal and TRH-stimulated levels of TSH and STH were investigated. Hyperergic ejection of STH and two pathological types of STH reaction (suggesting dysfunction of the hypothalamohypophyseal-thyroid system in euthyroid hyperplasia) were revealed. A group of patients with a low level of STH in response to TRH-stimulation demonstrated more pronounced changes of the hypothalamo-hypophyseal-thyroid system, characterized by a rise of a TSH level in response to stimulation up to 27.59 +/- 3.7 microU and a slightly reduced level of thyroid hormones. Changes in the level of STH indicated certain interest of growth hormone in the genesis of thyroid hyperplasia and could also serve an additional sign in the evaluation of a severity of disorders of the hypothalamo-hypophyseal-thyroid system.
[The efficacy of replacement therapy with L-thyroxine in manifest and latent forms of hypothyroidism].
Individual sensitivity of the hypothalamo-hypophyseal-thyroid system was studied in 12 patients with various degrees of euthyroid hyperplasia in the first 2 days of thyroxine therapy and during prolonged therapy. The effectiveness of thyroxine substitution therapy was compared with that of therapy with thyroid drugs in 55 patients with hypothyroidism. Euthyroid hyperplasia of III degree was accompanied by a more marked decrease in the level of TSH than in II degree, however during 3 mos. of therapy the size of the gland did not change. L-thyroxine administration for substitution therapy for 3-5 mos. was accompanied by a stable decrease in the level of TSH and improvement of clinical indices in hypothyroidism.
[Pathogenesis of euthyroid goiter].
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[Dynamics of the renal excretion of glycosaminoglycans as affected by thyroid therapy of hypothyroidism].
The state of renal excretion of glycosaminoglycans (GAG) was investigated in 15 patients with hypothyrosis of various degree of gravity before and during thyroid therapy. A raised level of GAG excretion with urine reflecting excessive GAG tissue accumulation was revealed. A degree of elevation was unrelated to a gravity of disease and grew with a period of disease. Thyroid therapy considerably increased GAG renal excretion, particularly in patients with a longer period of disease. A GAG level in daily urine can be used as an additional diagnostic criterion in hypothyrosis and the time course of GAG can serve for assessment of therapeutic efficacy.
[Aldosterone content and renin activity in the plasma of hypothyroidism patients before and during treatment with thyroid preparations].
A study was made of aldosterone (A) level and plasma renin activity (PRA) in 47 patients with hypothyrosis of various degree of severity prior to and during therapy with thyroid drugs. A normal basal A level in the blood plasma was noted, in some patients it was raised or lowered. The following tendency was revealed during therapy with thyroid drugs: in patients with lowered A and PRA levels a rise of these levels was noted during treatment, in raised levels a significant drop was noted. Normal A and PRA basal levels (in most of the patients) showed in the process of treatment diverse tendencies: toward a decrease in the A level and a rise of the PRA level within normal range. The results obtained indicated independent effect of thyroid hormones on A and PRA synthesis. In case of low level of endogenous thyroid hormones as well as exposure to exogenous thyroid hormones changes in the A level were not directly controlled by PRA.
[Characteristics of the hydration status of patients with hypothyroidism].
The hydratation status of 15 patients of various age groups with hypothyrosis was studied using nuclear physical methods. Their body composition was calculated. All the examinees demonstrated considerable hyperhydratation of the extracellular water sector with prevailing liquid accumulation in the interstitial space. Some changes in the infrastructure of the hydratation status including those in the nature of interrelationships of liquid media, were noted. The dependence of the hydratation status and its infrastructure in patients with hypothyrosis on age and gravity of disease but not on its duration was revealed.
[Endemic goiter in Moscow and Moscow region].
Goiter prevalence and iodine excretion levels were assessed in schoolchildren aged 9 and 13 in the city of Moscow (n = 91) and the Moscow region, 60 km East of Moscow (n = 92). Goiter prevalence was evaluated by ultrasonography. In Moscow it was found to be 31.1% among children aged 9 and 17.5% among those aged 13. The respective values in the Moscow region were 47.2 and 39.3%. Medium urinary iodine levels were 6.9 to 7.5 micrograms/dl in Moscow and 4.1 to 5.4 micrograms/dl in the region. According to modern criteria, iodine deficiency in Moscow may be regarded as mild and in the region as moderate. Control programs are urgently needed tc prevent development of iodine deficiency disorders.