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Biomedical subjects

K Oledzka

Publications and source records attributed to K Oledzka.

At least 19 recordsLinked to original sources
PubMed1998

[The influence of RS-Timolol in comparison with R-Timolol and S-Timolol on the intraocular pressure in water-loaded rabbits].

PURPOSE: It is assumed that S-timolol can produce more severe systemic adverse reactions than R-timolol. The aim of this study was to estimate the intraocular pressure-lowering effect of RS-timolol in comparison to R-timolol and S-timolol in water-loaded rabbits. MATERIAL AND METHODS: Ocular hypertension was provoked in rabbits by orogastric water loading. Topical administration of one of three timolol solutions: 0.85%, RS-timolol, or 3% R-timolol, or 0.5% S-timolol was performed to the right eyes 40 min before starting the water loading procedure. Left eyes served as a control group. Intraocular pressure was measured before and 30, 60, 90, 120 min after the water loading. RESULTS: Intraocular pressure-lowering effect of all three timolol solutions was comparable. CONCLUSION: RS-timolol can be effective for lowering intraocular pressure in rabbits.

Adrenergic beta-Antagonists↗
PubMed1994

Derivatives of 2-mercaptobenzenesulphonamide. XVII. Synthesis and some pharmacological properties of 1-[4-R-5-cyano-2-dialkylaminoalkylthio)benzenesulphonyl]-2-imidiazolidi none hydrochlorides.

Syntheses of 1-[4-R-5-cyano-2-(dialkylaminoalkylthio)-benzenesulphonyl]- 2-imidiazolidinones [IIIa-h,IVa-m] and their hydrochlorides [Va-h, VIa-m] are described herein. The results of preliminary pharmacological examinations, such as acute toxicity and influence on the circulatory system are presented. Some structure-activity relationship are also discussed.

Animals↗
PubMed1993

Derivatives of 2-mercaptobenzenesulphonamide. XI. Synthesis and some pharmacological properties of 2-(2-[2-(3,4,5-trimethoxybenzamido)ethylthio] benzenesulphonyl) guanidines.

Tree methods of synthesis of 2-(2-[2-(3,4,5-trimethoxybenzamido)ethylthio] benzenesulphonyl)guanidines (IVa-b, Va-XIVa, VIII-XII) are described. The results of preliminary pharmacological examinations such as acute toxicity and influence on circulatory system of compound [IVb, VIa, XIa-XIVa] and substrates [IIIc-f] are presented. Some structure-activity relationship is discussed.

Animals↗
PubMed1993

Derivatives of 2-mercaptobenzenesulphonamide. XII. Synthesis and some pharmacological properties of 2-(2-mercaptobenzenesulphonyl)imidazoline.

Synthesis of 2-[2 (alkylaminoalkylthio)-4-R1-5-R2-benzenesulphonamide]-5-R3-im idazoline [IV-IX], their hydrochlorides [IVa-IXa], as well needful substrates [IIc, III] are described. The results of preliminary pharmacological examinations such as acute toxicity and influence on circulatory system of compound IVa-IXa are presented. Some structure-activity relationship is also discussed.

Animals↗
PubMed1993

Pharmacological properties of the extract of thymus gland (Thymomodulin-TFX) and its effect on reproduction.

The effect of Thymomodulin-TFX on pentetrazole convulsions, tremorine-induced tremor, pain response to intraperitoneal acetic acid injection, hexobarbital sleeping time, isolated guinea pig ileum, isolated rat uterus, rabbit skeletal muscle response, diuresis and corneal response was tested. In addition the effect of TFX on reproduction of albino rats was investigated. In doses up to 20 mg/kg, 8 times higher than clinical doses, TFX did not reveal any unwanted effects. The results of tests widen the security margin for TFX's usage.

Animals↗
PubMed1992

Investigations on some pharmacological properties of TPP.

The experiments were performed on mice, rats and rabbits. The influence on circulatory, central nervous, and gastrointestinal system in vivo and in vitro, as well as on renal secretory activity was examined. TPP was administered p.o., i.v. and s.c. at the doses 100.0-400.0 mg/kg. Either in a single dose or multiple doses TPP did not evoke any significant effects (as compared with NaCl solution) on blood pressure, heart and respiratory rate, general behaviour, locomotor activity, body temperature, locomotor coordination, ECoG, smooth muscles of intestine in vivo and in vitro, gastric secretion and on the volume and quality of excreted urine. The augmentation of sodium and potassium ion excretion with urine and slight influence on locomotor coordination both after TPP and 6% NaCl seems to be connected with a high content of salt in TPP.

Adjuvants, Immunologic↗
PubMed1991

Derivatives of 2-mercaptobenzenesulphonamide. IX. Synthesis and some pharmacological properties of N- or S-dialkylaminoalkyl derivatives of 2-(4-chloro-2-mercapto-5-methylbenzenesulphonyl)guanidines.

Synthesis and results of preliminary pharmacological examinations such as acute toxicity and influence on circulatory system of 2-(4-chloro-2-mercapto-5-methylbenzenesulphonyl)guanidine hydrochloride derivatives containing N-dialkylaminoalkyl (V-VI, VIIb-VIIIb, Xa), or S-dialkylaminoalkyl (XI-XIII) groups, were described. Compounds VIIa-VIIIa, IX-X, XIa were isolated as free bases.

Animals↗
PubMed1990

Derivatives of 2-mercaptobenzenesulphonamide. VIII. Synthesis and some pharmacological properties of 1,3-dialkyl-2-(4-chloro-2-carboxyalkylthio-5-methylbenzenesulphonyl) guanidines.

Synthesis of 1,3-dialkyl-2-(4-chloro-2-carboxyalkylthio-5-methylbenzenesulphonyl)guanidines (IX-XVII) and their easily soluble in water sodium (Xa-XIVa, XVIIa) or 2,6-dimethylpiperidine salts (XIb, XVIIb) have been described. The results of preliminary pharmacological examinations such as acute toxicity and influence on circulatory system have been presented.

Animals↗
PubMed1981

The effect of prostacyclin on some hemodynamic parameters in dogs.

The following hemodynamic parameters were determined in anesthetized mongrel dogs: heart rate, systolic blood pressure in the ascending aorta, left ventricular pressure at the peak dp/dt, left ventricular end-diastolic pressure, time intervals from Q in ECG to peak dp/dt, maximum rate of left ventricular pressure rise, femoral arterial flow and certain indices of left ventricular contractility. It was demonstrated that prostacyclin even in high doses has no significant effect on hemodynamic parameters in dogs.

Animals↗