Hadi Aminfar; Masoud Maham; Bahram Dalir-Naghadeh
Volume 14, Issue 3 , March 2023, , Pages 139-144
Abstract
Intestinal hypomotility cause health risks and economic losses and is considered as an important digestive disorder that efforts to find prokinetic drugs can solve this major problem. This study investigated the effects of Zingiber officinale aqueous extract (ZOAE) on caecal smooth muscle contractions ...
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Intestinal hypomotility cause health risks and economic losses and is considered as an important digestive disorder that efforts to find prokinetic drugs can solve this major problem. This study investigated the effects of Zingiber officinale aqueous extract (ZOAE) on caecal smooth muscle contractions in healthy cows. To perform in vitro tests, cecum strips connected to the organ bath. Ginger aqueous extract caused concentration-dependent contraction in caecal smooth muscle with an effective threshold concentration of 6.00 mg L-1. The strongest contraction was caused at a concentration of 100 mg L-1 with an average contraction of 141%. To evaluate the possible mechanisms underlying the contractile effect on cecum strips, atropine, 1,1-dimethyl-4-diphenylacetoxypiperidinium iodide (4-DAMP) and verapamil completely inhibited aqueous extract induced smooth muscle contractions, while addition of hexamethonium had no effect on the contraction process. The lack of reduction of contractions caused by the extract in the presence of hexamethonium indicates that presence of acetylcholine-like constituents independent of nicotinic receptors. The inhibitory properties of atropine and 4-DAMP indicate that at least part of the prokinetic effect of the extract is due to stimulating the muscarinic receptors, especially M3 receptors. Also, verapamil inhibitory function proves that the extract acting by L-type calcium channels. The results suggest that the ZOAE has a potential prokinetic effect which may provide a pharmacological base to its medicinal or prophylactic use in caecal motility disorders.
Yaser Nozohour; Masoud Maham; Bahram Dalir-Naghadeh
Volume 13, Issue 3 , September 2022, , Pages 357-362
Abstract
Gastrointestinal motility disorders include increased or decreased movements. Other studies have shown that herbal components, for example, essential oils can modify the increase and decrease of gastrointestinal movements of ruminants. The 1, 8-cineole being obtained from the essential oil of many plants ...
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Gastrointestinal motility disorders include increased or decreased movements. Other studies have shown that herbal components, for example, essential oils can modify the increase and decrease of gastrointestinal movements of ruminants. The 1, 8-cineole being obtained from the essential oil of many plants has several effects. The present study has investigated the effect of 1, 8-cineole on the contractility of bovine ileum smooth muscle. The experiment was performed on the circular smooth muscle of ileum samples taken from slaughtered cows in the organ bath. Seven cumulative concentrations of 1, 8-cineole from 1.00 to 1,000 µg mL-1 were added to tissue samples. The used solution was Tyrode’s solution aerated with a mixture of 95.00% oxygen and 5.00% carbon dioxide, and the temperature was set at 37.00 ˚C. The effects of 1, 8-cineole on baseline contractions and three induced contractions with barium chloride, potassium chloride, and carbachol were investigated. The effects of 1, 8-cineole, and verapamil (standard calcium channel blocker) on calcium channels were assessed. The results revealed that 1, 8-cineole significantly inhibited spontaneous contractions as well as all spasmogen-induced contractions. The 1, 8-cineole exerts its myorelaxant properties by inhibiting calcium channels in smooth muscle. It seems that 1, 8-cineole has a good potential for producing antispasmodics or gastrointestinal motility modulators in veterinary medicine.
Masoud Ahmadnejad-Asl-Gavgani; Masoud Maham; Bahram Dalir-Naghadeh
Volume 13, Issue 1 , March 2022, , Pages 29-37
Abstract
Tanacetum balsamita (Asteraceae) is a medicinal plant previously used in human medicine to solve gastrointestinal problems such as abdominal pain. Anti-inflammatory, analgesic, immune-modulatory, and antioxidant effects of T. balsamita have been proven in previous studies. The present study investigated ...
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Tanacetum balsamita (Asteraceae) is a medicinal plant previously used in human medicine to solve gastrointestinal problems such as abdominal pain. Anti-inflammatory, analgesic, immune-modulatory, and antioxidant effects of T. balsamita have been proven in previous studies. The present study investigated the effects of T. balsamita essential oil (TBEO) on ruminant smooth muscle contractions. The experiment was performed on the circular smooth muscle of ileum samples taken from slaughtered bulls in the organ bath. Nine cumulative concentrations of TBEO from 0.10 to 1000 µg mL-1 were added to tissue samples. The solution used was Tyrode’s solution aerated with a mixture of 95.00% oxygen and 5.00% carbon dioxide, and the temperature was set at 37.00 ˚C. The effect of TBEO on baseline contractions and three induced contractions with potassium chloride, barium chloride, and carbachol was investigated. In GC-MS analysis of TBEO, carvone was identified as a major ingredient. The effects of eight concentrations of 0.001 to 10.00 µM of carvone on all contractions were investigated under similar conditions. The effects of TBEO, carvone, and verapamil (standard calcium channel blocker) on calcium channels were assessed. The results revealed that TBEO and carvone significantly inhibit spontaneous contractions as well as all spasmogen-induced contractions. The TBEO and carvone exert their myorelaxant properties by inhibiting Ca++ channels in smooth muscle. The anti-spasmodic properties of T. balsamita can be employed for the treatment of intestinal spasms or hypermotility.
