Effect of mare and cow kumis on gastric secretion

Kumis is a product of two fermentation, brought to a well-known equilibrium - lactic acid and alcohol. In this case, milk proteins, mainly casein, undergo partial hydrolysis, passing into solution.

(-)-Carveol Prevents Gastric Ulcers via Cytoprotective, Antioxidant, Antisecretory and Immunoregulatory Mechanisms in Animal Models

Background: (-)-Carveol (p-Mentha-6,8-dien-2-ol) is a monocyclic monoterpenic alcohol, present in essential oils of plant species such as Cymbopogon giganteus, Illicium pachyphyllum and in spices such as Carum carvi (cumin). Pharmacological studies report its antitumor, antimicrobial, neuroprotective, vasorelaxant, antioxidant and anti-inflammatory activity.Hypothesis/Purpose: The objective of this study was to evaluate the acute non-clinical oral toxicity, gastroprotective activity of monoterpene (-)-Carveol in animal models and the related mechanisms of action.Methods: Acute toxicity was assessed according to OECD guide 423 in mice. Ethanol, stress, NSAIDs and pylorus ligation-induced gastric ulcer models were used to investigate antiulcer properties. The related mechanisms of action were using the ethanol-gastric lesions protocol.Results: (-)-Carveol has low toxicity, with a lethal dose 50% (LD50) equal to or greater than 2,500 mg/kg according to OECD guide nº 423. In all gastric ulcer induction methods evaluated, (-)-Carveol (25, 50, 100 and 200 mg/kg, p.o.) significantly reduced the ulcerative lesion in comparison with the respective control groups. To investigate the mechanisms involved in the gastroprotective activity, the antisecretory or neutralizing of gastric secretion, cytoprotective, antioxidant and immunoregulatory effects were evaluated. In the experimental protocol of pylorus ligation-induced gastric ulcer, (-)-Carveol (100 mg/kg) reduced (p < 0.001) the volume of gastric secretion in both routes (oral and intraduodenal). The previous administration of blockers NEM (sulfhydryl groups blocker), L-NAME (nitric oxide synthesis inhibitor), glibenclamide (KATP channel blocker) and indomethacin (cyclo-oxygenase inhibitor), significantly reduced the gastroprotection exercised by (-)-Carveol, suggesting the participation of these pathways in its gastroprotective activity. In addition, treatment with (-)-Carveol (100 mg/kg) increased (p < 0.001) mucus adhered to the gastric wall. Treatment also increased (p < 0.001) levels of reduced glutathione (GSH), superoxide dismutase (SOD) and interleukin-10 (IL-10). It also reduced (p < 0.001) malondialdehyde (MDA), myeloperoxidase (MPO), interleukin-1 beta (IL-1β) and tumor necrosis factor-alpha (TNF-α) levels.Conclusion: Thus, it is possible to infer that (-)-Carveol presents gastroprotective activity related to antisecretory, cytoprotective, antioxidant and immunomodulatory mechanisms.

To the question of the effect of sodium, calcium and potassium chloride salts on the work of the gastric glands

When studying the question of the effect of NaCl on gastric secretion, not all authors come to concordant conclusions, and the data of clinical studies are sharply at variance with the results of experimental studies on animals.

MODULATION OF MELOXICAM-INDUCED CHANGES IN GASTROINTESTINAL AND MOTOR ACTIVITY OF THE STOMACH BY APPLYING PLACENTA CRYOEXTRACT

Introduction. Current approaches to reducing the ulcerogenicity of nonsteroidal anti-inflammatory drugs are aimed primarily at eliminating the damaging effect on the gastric mucosa, and according to the literature, the use of proton pump inhibitors can even worsen the course of enteropathy. Objectives. To characterize the influence of cryopreserved placenta extract on the state of secretory and motor-evacuation activity of the stomach under the conditions of experimental meloxicam-induced gastropathy and enteropathy. Methods. Serial randomized placebo-controlled studies were performed on nonlinear rats and mice using a model of small intestine-induced gastrointestinal lesions. Gastric secretion in rats, gastric evacuation function and intestinal motor function in mice were studied with the help of standard methods. Results. The administration of meloxicam leads to a statistically significant increase (p <0.05) in the volume of gastric secretion by 31.6±7.3%, an increase in total acidity (p=0.002) by 7.7 [7.7; 16.6]% and a statistically significant increase (p<0.05) in peristaltic activity by 18.9% relative to intact animals. The administration of cryopreserved placenta extract led to a statistically significant (p=0.002) decrease in the ratio of free and total acidity by 2.3 times, with a statistically significant decrease (p<0.05) by 14.5% in peristaltic activity relative to intact animals. The combined threaded administration of meloxicam and cryopreserved placenta extract was accompanied by a decrease in the ratio of free and total acidity by 43.0±3.0%. Conclusion. The combined application of placental cryoextract and meloxicam eliminates meloxicam-induced hypersecretion of gastric juice and gastric hypermobility. The cryoextract has also proved to reduce the aggressiveness of gastric juice by reducing its free and increasing combined acidity.

Amoxicillin secretion by gastric mucosa in Chernobyl nuclear power plant accident recovery workers with atrophic and nonatrophic gastritis undergoing eradication therapy

Relevance. Today gastric cancer is still one of the oncologic diseases most often leading to death. H. pylori eradication reduces risk of gastric cancer, but its efficacy depends on gastric mucosa state. Atrophy of gastric mucosa is more common in Chernobyl nuclear power plant (CNPP) accident recovery workers than in patients who have not been involved in CNPP accident recovery works. It seems especially important to investigate the features of antibiotics transport to H. pylori colonization area in this contingent.Intention – to determine the features of amoxicillin secretion by gastric mucosa in CNPP accident recovery workers with atrophic and nonatrophic gastritis undergoing H. pylori eradication.Methodology. 65 CNPP accident recovery workers were divided into groups depending on state of gastric mucosa according to endoscopic and histological examination, immunosorbent assay of pepsinogens I and II and gastrin-17 basal serum levels. On the first day of eradication therapy, gastric secretion samples were obtained via nasogastric probe 30, 60, 120, 180 and 240 minutes after oral amoxicillin administration. Drug concentrations in gastric secretion were assessed via liquid chromatography-mass spectrometry.Results and discussion. Amoxicillin concentrations in gastric secretion samples were lower (р < 0.01) in patients with atrophic antral gastritis than in patients with normal gastric mucosa and atrophic fundal gastritis. Patients with fundal atrophy were characterized by lower amoxicillin concentrations 30 and 60 (p = 0.02) minutes after drug intake than in patients with normal gastric mucosa, and higher concentration in the 120th (p < 0.01) and 180th (p = 0.02) minute than in patients with antral atrophy. Amoxicillin concentrations in patients with antral atrophy were lower (p < 0.01) than in non-atrophy group in the 30th, 60th and 120th minute. In the 240th minute, amoxicillin concentrations in patients with fundal atrophy exceeded concentrations in both other groups (p < 0.01). Amoxicillin concentration peak was registered in patients with fundal and antral atrophy in the 180th minute, in patients without atrophy – from the 30th to 120th minute.Conclusion. Atrophy of gastric mucosa is characterized by decreased transport of orally administered amoxicillin from bloodstream to gastric lumen. Depending on gastric mucosa state, amoxicillin concentrations in gastric secretion should be evaluated at different time points after drug administration: in patients with atrophic gastritis – in the 180th minute, in patients without atrophy – in the 120th minute. While predicting the efficacy and choosing H. pylori eradication regimen, morphological and functional state of gastric mucosa should be taken into account.

Red Propolis and Its Dyslipidemic Regulator Formononetin: Evaluation of Antioxidant Activity and Gastroprotective Effects in Rat Model of Gastric Ulcer

Propolis has various pharmacological properties of clinical interest, and is also considered a functional food. In particular, hydroalcoholic extracts of red propolis (HERP), together with its isoflavonoid formononetin, have recognized antioxidant and anti-inflammatory properties, with known added value against dyslipidemia. In this study, we report the gastroprotective effects of HERP (50–500 mg/kg, p.o.) and formononetin (10 mg/kg, p.o.) in ethanol and non-steroidal anti-inflammatory drug-induced models of rat ulcer. The volume, pH, and total acidity were the evaluated gastric secretion parameters using the pylorus ligature model, together with the assessment of gastric mucus contents. The anti-Helicobacter pylori activities of HERP were evaluated using the agar-well diffusion method. In our experiments, HERP (250 and 500 mg/kg) and formononetin (10 mg/kg) reduced (p < 0.001) total lesion areas in the ethanol-induced rat ulcer model, and reduced (p < 0.05) ulcer indices in the indomethacin-induced rat ulcer model. Administration of HERP and formononetin to pylorus ligature models significantly decreased (p < 0.01) gastric secretion volumes and increased (p < 0.05) mucus production. We have also shown the antioxidant and anti-Helicobacter pylori activities of HERP. The obtained results indicate that HERP and formononetin are gastroprotective in acute ulcer models, suggesting a prominent role of formononetin in the effects of HERP.

COMPARISON BETWEEN THE EFFECTS OF THYMOQUINONE OBTAINED FROM THE SEEDS OF NIGELLA SATIVA AND VERAPAMIL ON THE VOLUME AND ACIDITY OF GASTRIC ACID SECRETION

Background and Objectives: The over production of gastric acid results in peptic ulcer. This study was done to compare the effects of thymoquinone and Verapamil on volume and acidity of carbachol induced gastric secretion. Methods: There were 24 rabbits used, weighing 1-1.5 kg. The rabbits were kept on fasting for 48 hours. After fasting, the pylorus of each rabbit was ligated. Thymoquinone 5 mg/kg, Carbachol 600mg/kg and Verapamil 10 mg/kg body weight were administered intraperitoneally. Pylorus ligation method was used for getting gastric contents and titration method was used for finding out acidity. Results: Verapamil has been proved very effective for the treatment of many diseases. The drug verapamil inhibits the release of histamine, acetylcholine and gastrin. Verapamil has also shown effects in reducing the secretion of gastric acid. It was found that Thymoquinone reduced the volume, free and total acidity of gastric secretion, which were statistically highly significant when compared with Carbachol (P=0.000) but when we compared the results of Thymoquinones with that of Verapamil, it was non-significant. Conclusions: It was concluded that Thymoquinone can be used for the treatment of peptic ulcer and all other diseases which are caused by increased gastric acidity like dyspepsia, gastritis and reflux esophagitis. Peer Review History: Received 8 July 2020; Revised 14 August; Accepted 6 September, Available online 16 September 2020 UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency. Received file Average Peer review marks at initial stage: 6.0/10 Average Peer review marks at publication stage: 8.0/10 Reviewer(s) detail: Name: Dr. Hatem Sameir Abbas Affiliation: Al-Azhar University, Egypt E-mail: [email protected] Name: Prof. Dr. Ali Gamal Ahmed Al-kaf Affiliation: Sana'a university, Yemen E-mail: [email protected] Name: Dr. Gehan Fawzy Abdel Raoof Kandeel Affiliation: National Research Centre, Egypt E-mail: [email protected] Name: Dr. Mahmut Yıldıztekin Affiliation: Muğla Sıtkı Koçman University, Turkey E-mail: [email protected] Comments of reviewer(s): Similar Articles: COMPARISION OF ANTIDYSLIPIEMIC POTENTIAL OF 80 MILLIGRAMS OF FENOFIBRATED WITH 8 GRAMS OF NIGELLA SATIVA SEEDS DAILY GC-MS ANALYSIS OF FIXED OILS OF NIGELLA SATIVA SEEDS WOUND DRESSINGS UPLOADED WITH MYRTLE BERRIES EXTRACT AND NIGELLA SATIVA HONEY