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Biomedical subjects

R S Tishenina

Publications and source records attributed to R S Tishenina.

At least 19 recordsLinked to original sources

Serum interleukin-6 in patients with adrenal tumors.

The mean blood content of interleukin-6 in patients with adrenal tumors was much higher than in healthy donors. No correlations were revealed between interleukin-6 level, patients sex and age, stage and duration of the disease. Interleukin-6 concentration was maximum in patients with adrenocortical cancer. A negative correlation was found between interleukin-6 level and blood cortisol concentration in patients with cortisol-producing adenoma. In patients with aldosterone-producing adenoma, interleukin-6 level tended to correlate negatively with plasma renin activity.

Adenoma↗

[Glucocorticoid adrenal function and clinical implications of hydrocortisone metabolism tests in patients with bronchial asthma].

A glucocorticoid adrenal function was studied in 42 perimenopausal women with bronchial asthma (BA) by radioimmunoassay estimation of blood hydrocortisone levels, free and conjugated fractions of urinary hydrocortisole, 24-h excretion of overall 17-OCS and hydrocortisone metabolism index. Replacement estrogens inhibit processes of microsomal hydroxylation and reduce clearance of the introduced steroids. Replacement therapy with sex hormones conducted to correct menopause had no negative influence on hydrocortisone blood levels and its metabolism.

Adult↗

Plasma content of soluble fas antigen in patients with adrenal tumors and tumor-like pathologies.

We compared plasma content of soluble Fas antigen (sFas) in 59 patients with tumors and tumor-like pathologies of the adrenal cortex and medulla and 60 healthy donors (control). The incidence and content of sFas in the plasma from patients with adrenal tumors was significantly higher than in healthy donors. A direct correlation was found between sFas content and patient's age. The maximum sFas concentrations were found in patients with pheochromocytoma and aldosterone-producing adenoma. In patients with adrenocortical cancer plasma content of sFas was lower than in patients with tumors of other morphological types. Plasma sFas content in patients with adrenocortical cancer directly correlated with the size of tumors. Our results suggest that sFas plays a role in the pathogenesis of primary adrenal tumors.

Adrenal Gland Neoplasms↗

[The extratumor mechanisms of osteolysis in multiple myeloma and the means for their correction].

In 70 patients with stage III multiple myeloma (MM) the authors studied spontaneous and lipopolysaccharide-induced production of interleukin-1 (IL-1) and interleukin-6 (IL-6) by blood and bone marrow mononuclear cells, concentration of parathyroid hormone and vitamin D3 in the serum. Bone marrow density was measured at photon absorption (Gambro), in patients treated with osteoprotectors bonefos and oxidevit before and after therapy (3.5-6 month course). It is shown that in MM there is a pathogenetic association between production of osteotropic IL-1, IL-6 and bone demineralization. The cases with reduced concentration of Ca and P ions in the serum (4 and 5.7% of patients, respectively) and increased PTH concentration (7%) suggest the existence of new, extratumor mechanisms of osteolysis. It is found that biphosphonates are optimal osteoprotectors. Bonefos (chlodronat, Lieras, Finland) arrests osteolysis proved by a significant increase of bone marrow density and clinical effect.

Adult↗

[Individual patient sensitivity to glucocorticoids and hormone resistance in bronchial asthma].

The paper reports glucocorticoid actions in bronchial asthma, covers problems of individual sensitivity to glucocorticoids and resistance to hormones, illustrates the dependence of beclometasone dipropionate efficacy on condition of glucocorticoid receptors in alveolar macrophages and clinical appearance of the disease, describes physiological features of patients with hormone-resistant bronchial asthma and its new treatment (extracorporeal photohemotherapy) allowing reduction of prednisolone dose in 14 of 15 patients from 29.6 to 11.4 mg/day, on the average.

Adult↗

[Clinico-biochemical parallels in diverse forms of primary hyperparathyroidism].

Altogether 184 patients with bone, renal or mixed hyperparathyroidism (HPT) presenting primarily were examined for blood levels of parathyroid hormone and indirect indicators of parathyroid function. None of the indices (calcium concentration, phosphorus level, serum activity of acid and alkaline phosphatase, oxyproline excretion with urine, etc.) was changed. The commonest biochemical signs of primary HPT were hypercalcemia, hypersecretion of parathyroid hormone, hyperoxyprolinuria. Biochemical indices deviations occurred more often and were more profound in bone primary HPT and parathyroid adenomas.

Acid Phosphatase↗

[Hormone levels of the blood of the adrenal veins and inferior vena cava in patients with adrenal and kidney diseases].

Hydrocortisone and aldosterone concentration was determined in 138 patients with arterial hypertension of adrenal and renal genesis in the blood of the adrenal veins and in the cistern of the vena cava inferior, that of deoxycorticosterone in 50 patients, ACTH in 51 and renin activity in the blood plasma of the renal veins in 21 patients. The concentration of steroid hormones adequately reflected adrenal cortex function facilitating differential diagnosis between renal and adrenal pathology variants. Differential diagnostic analysis on the basis of change in the concentration of steroid hormones was found difficult or impossible if the patients received steroidogenesis changing drugs on day, preceding veno graphic examination of the adrenals.

Adrenal Gland Neoplasms↗