Immunomodulatory Effects of Vagus Nerve and Acetylcholine in Gastroduodenal Area
Oksana Sulaieva,
Natalia Obraztsova
Issue:
Volume 2, Issue 3, May 2014
Pages:
42-46
Received:
18 March 2014
Accepted:
28 April 2014
Published:
30 May 2014
Abstract: Objective: Neuroimmune interplay is one of the basic elements that determine mucosal health and disease. Continuing discussion of the vagus nerve in maintenance of homeostasis of gastroduodenal area, we aim to revise immunomodulating effects of acetylcholine. Results: Vagus nerve plays a major role in gut mucosa immunity due to cytoprotective properties and modulation of leukocytes activity. Stimulation of vagus nerve after mucosa damage is accompanied by cholinergic anti-inflammatory pathway that is realized directly through alfa7-nicotinergic cholinoreceptors on neutrophils, macrophages and lymphocytes, which activation causes decrease of NF-kB expression and TNF and IL-6 secretion. Indirect effect of acetylcholine through enteroendocrine cells regulation is quite important in determination of neuro-immune-endocrine interplay in gastroduodenal mucosa. In addition, the changes in vagus nerve activity and neurohumoral control of gastroduodenal area under antisecretory therapy of gastroduodenal diseases are deliberated in this review. Conclusion: Vagus nerve dysfunction is likely to be the main cause of gastroduodenal inflammation, dysregeneration and cancerogenesis.
Abstract: Objective: Neuroimmune interplay is one of the basic elements that determine mucosal health and disease. Continuing discussion of the vagus nerve in maintenance of homeostasis of gastroduodenal area, we aim to revise immunomodulating effects of acetylcholine. Results: Vagus nerve plays a major role in gut mucosa immunity due to cytoprotective prope...
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In Vitro and in Vivo Anti Dermatophytes Activity of Lawsonia Inermis L. (Henna) Leaves against Ringworm and Its Etiological Agents
Nasir Hassan Wagini,
Mohamed Said Abbas,
Amira Shawky Soliman,
Yasser Adel Hanafy,
El-Saady Mohamed Badawy
Issue:
Volume 2, Issue 3, May 2014
Pages:
51-58
Received:
4 May 2014
Accepted:
17 May 2014
Published:
30 May 2014
Abstract: The study was carried out to identify the etiological agents causing ringworm, evaluate the in vitro and in vivo antifungal activity of Lawsonia inermis L. In vitro study was carried out using agar dilution method. In a total of 50 clinical samples, 4 different species were identified namely; Microsporum canis, Trichophyton tonsurans, Trichophyton rubrum, and Trichophyton mentagrophytes. However, the results showed that hexane extract exerted a strong antifungal activity against all the identified etiological agents, with a minimum inhibitory concentration of 625µg/ml except Microsporum canis which resisted the minimum concentration but susceptible to the higher concentrations. The in vivo study was carried out using 15 naturally infected goats. First, second and third group of animals were treated with henna paste, aqueous and ethanolic extract respectively, fourth group were treated with clotrimazole as a positive control while negative control (fifth) group were left untreated with neither henna nor clotrimazole. The treatments were compared and the results showed that henna paste had the highest efficacy against all the types of ringworm tested compared to the remaining treatments. Disappearance of lesion and complete repair of the hair was observed at 30 days after treatment. Significantly similar result was observed in the group of animals treated with aqueous extract, ethanol extract, and clotrimazole in all the parameters. Significant different was only observed between groups treated and negative control.
Abstract: The study was carried out to identify the etiological agents causing ringworm, evaluate the in vitro and in vivo antifungal activity of Lawsonia inermis L. In vitro study was carried out using agar dilution method. In a total of 50 clinical samples, 4 different species were identified namely; Microsporum canis, Trichophyton tonsurans, Trichophyton ...
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