Nicotine affects hydrogen sulfide concentrations in mouse kidney and heart but not in brain and liver tissues.

Nicotine, a potent parasympathomimetic alkaloid with stimulant effects, is contributing to addictive properties of tobacco smoking and is though used in the smoking cessation therapy. Hydrogen sulfide (H2S) is involved in physiology and pathophysiology of various systems in mammals. The interactions between nicotine and H2S are not fully recognized.

Sodium Hydrosulfide Exerts a Transitional Attenuating Effect on Spermatozoa Migration in Vitro.

Hydrogen sulfide (H2S) has been shown to have a prominent role in the regulation of reproductive system function and fertility. The aim of the study was to assess the effect of a H2S donor, sodium hydrosulfide (NaHS), on mouse sperm migration in vitro. Special plates with 4 corner wells filled with balanced salt solution (control) and various NaHS solutions in concentrations of 2.

Cocaine exposure alters H2S tissue concentrations in peripheral mouse organs.

Background: Hydrogen sulfide (H2S) is well-known as a physiological mediator in the mammalian brain and peripheral tissues. Among several factors that change the concentration of H2S, oxidative stress and generation of reactive oxygen species, which accompany neurochemical actions of drugs of abuse, are of recent interest.

Objective: Limited data on the connection of cocaine and H2S levels prompted us to investigate the effect of this psychostimulant on the H2S concentration in the mouse brain and peripheral organs.

Metformin raises hydrogen sulfide tissue concentrations in various mouse organs.

Background: The epidemic of diabetes mellitus type 2 forces to intensive work on the disease medication. Metformin, the most widely prescribed insulin sensitizer, exerts pleiotropic actions on different tissues by not fully recognized mechanisms. Hydrogen sulfide (H2S) is involved in physiology and pathophysiology of various systems in mammals and is perceived as a potential agent in the treatment of different disorders.

Vitamin D3 (cholecalciferol) boosts hydrogen sulfide tissue concentrations in heart and other mouse organs.

Vitamin D3 is a crucial co-regulator of bone growth and remodeling, neuromuscular function, inflammation, proliferation, differentiation and apoptosis of cells. Intensive research on endogenous sulfur metabolism has revealed that hydrogen sulfide (H2S) is an important modulator of various physiological processes in mammals. Noteworthy, these compounds are perceived as potential agents in the treatment of numerous disorders, including cardiovascular diseases and different types of cancer.

Stevia, cyclamate and saccharin - natural and artificial sweeteners - exert no effect on sulfane levels in tissues.

The interactions among natural and artificial sweeteners and endogenous sulfur metabolism have never been investigated. CBA strain mice were administered orally stevia, cyclamate or saccharin in doses of 5 mg/kg of body weight in water solutions each. The measurements of the free and acid-labile sulfane (H2S) tissue concentrations in brain, heart, liver and kidney were performed with Siegel spectrophotometric modified method.

Carvedilol induces endogenous hydrogen sulfide tissue concentration changes in various mouse organs.

Carvedilol, a third generation non-selective adrenoreceptor blocker, is widely used in cardiology. Its action has been proven to reach beyond adrenergic antagonism and involves multiple biological mechanisms. The interaction between carvedilol and endogenous 'gasotransmitter' hydrogen sulfide (H2S) is unknown.

Digoxin increases hydrogen sulfide concentrations in brain, heart and kidney tissues in mice.

The interest in digoxin has recently increased due to the expanding knowledge regarding endogenous cardiac glycosides and a potential oncological application of this drug. Hydrogen sulfide (H(2)S), a crucial co-modulator of various physiological processes, is involved in the pathophysiology of different disorders and may be useful in the treatment of some diseases. The interaction between cardiac glycosides and H(2)S is unknown.

Paracetamol (acetaminophen) decreases hydrogen sulfide tissue concentration in brain but increases it in the heart, liver and kidney in mice.

The biological action ofN-acetyl-p-aminophenol - paracetamol (acetaminophen) has been demonstrated to involve different mechanisms and is still not clear. Hydrogen sulfide (H2S) has been shown to play an important role in many physiological and pathological processes including nociception. The interaction between acetaminophen and endogenous H2S is unknown.

Atorvastatin affects the tissue concentration of hydrogen sulfide in mouse kidneys and other organs.

Hydrogen sulfide (H2S) is a crucial co-modulator of cardiovascular, nervous, digestive and excretory systems function. The pleiotropic action of atorvastatin exceeds simple 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibition and involves multiple biological mechanisms. This study assesses the influence of atorvastatin on the H2S tissue concentration in mouse brain, liver, heart and kidney.

Hypotensive effects of statins. A place for hydrogen sulfide in the puzzle?

Lipid lowering 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitors--statins--significantly diminish the risk of cardiovascular morbidity and mortality in patients with cardiovascular diseases. Moreover, some clinical trials results indicate that this group of drugs reduces blood pressure, especially in patients with hypertension. In the article pleiotropic effects of statins that might have influence on blood pressure are discussed.

Amlodipine affects endogenous hydrogen sulfide tissue concentrations in different mouse organs.

The interactions between calcium channel blockers' action and the endogenous hydrogen sulfide (H2S) biology are unknown. CBA strain mice were administered intraperitoneally 3 mg/kg b.w.

Ramipril affects hydrogen sulfide generation in mouse liver and kidney.

Hydrogen sulfide (H2S) is a modulator of various physiological and pathological processes in the cardiovascular and nervous system and plays an important role in the regulation of gastrointestinal tract, liver and kidney function. The effect of the pleiotropic action of the tissue specific angiotensin-converting enzyme inhibitor (ACEI), ramipril, exceeds renin-angiotensin aldosterone system (RAAS) blockade and involves different biological mechanisms. The aim of the study is to assess the influence of ramipril on H2S production in mouse liver and kidneys.

Effects of aspirin on the levels of hydrogen sulfide and sulfane sulfur in mouse tissues.

This study was designed to investigate the effect of aspirin (ASA) on anaerobic cysteine metabolism, which yields sulfane sulfur-containing compounds and hydrogen sulfide (H(2)S), in mouse liver and brain. In order to solve this problem, we determined the levels of sulfane sulfur and H(2)S, and the activities of cystathionase, the enzyme directly engaged in H(2)S synthesis, and rhodanese, the enzyme that catalyzes sulfane sulfur transfer to different acceptors. Moreover, we examined the effect of ASA on glial Gomori-positive cells (GGPC) in the brain that contain sulfur-rich glial Gomori-positive material (GGPM).

Ramipril enhances the endogenous hydrogen sulfide tissue concentration in mouse heart and brain.

Background: Hydrogen sulfide (H2S) participates in regulation of different physiological and pathological processes of cardiovascular system and nervous system. The effect of ramipril - tissue specific angiotensin-converting enzyme inhibitor (ACEI) - exceeds renin-angiotensin aldosterone system (RAAS) blockade. The influence of ACEI on the metabolism of H2S remains obscure.

Aspirin augments the concentration of endogenous hydrogen sulfide in mouse brain and liver.

Intraperitoneal injections of lysine acetylsalicylate (L-ASA, aspirin) in a dose of 10 mg during 5 consecutive days to BALB/c and B10.PL mice increased the concentration of endogenous hydrogen sulfide in their livers. The rise of hydrogen sulfur levels was shown also in brains of BALB/c females and B10.

Application of copper (II) in spectrophotometric determination of some drugs of aliphatic amine nature.

Anhydrous copper(II) acetate was applied to spectrophotometric determination of amitriptilline, doxepin and lignocaine in acetone solutions. The developed method was employed for determining these substances in pharmaceutical preparations. The obtained results has indicated both high precision and accuracy of the method.

Acidimetric titration of medicines being salts of weak acids and determining the end-point based on the iodate(V)-iodide reaction.

A sample being a salt of weak acid in a solvent is determined with hydrochloric acid in the presence of iodate, iodide and starch. The excess acid colours the solution blue.