the β2-adrenergic effects of macerated extract, aqueous extract, ethanol extract, and essential oil of carum copticum, 5 nm propranolol, and saline were tested by performing cumulative log concentration-response curves of isoprenaline-induced relaxation of precontracted isolated guinea pig tracheal chains in three different conditions including: non-incubated (group 1, n=9) incubated with 1 µm ...

in a previous study, the relaxant and anticholinergic (functional antagonism) effects of bunium persicum (b. persicum ) have been demonstrated on guinea pig tracheal chains. to elucidate the other mechanisms responsible for this relaxant effect, the inhibitory effect of this plant on histamine h1 receptors was examined in this study. the antihistaminic effects of aqueous and macerated extracts,...

background: barberry (berberris vulgaris) is a well known medicinal plant in iran and has also been used as food. objective: this study was conducted to evaluate antihistaminic and anticholinergic activity of methanolic extract of barberry fruit. methods: methanolic extract was prepared and pharmacologically studied on isolated guinea- pig ileum, dose- response curves of histamine and acetylcho...

objective(s): in regard to the high incidence of asthma and the side-effects of the drugs used, finding novel treatments for this disease is necessary. our previous studies demonstrated the preventive effect of nigella sativa extract on ovalbumin-induced asthma. in addition, water-soluble substances of n. sativa extract and methanol fraction of this plant were responsible for the relaxant effec...

the stimulatory effect of the extract of portulaca oleracea (p. olerace) on β-adrenoceptor of tracheal smooth muscle was examined. to examine β-adrenoceptor stimulatory effect, concentration response curve to isoprenaline was obtained in pre-contracted tracheal smooth muscle in the presence of three concentrations of aqueous-ethanolic extract, propranolol and saline. values of ec50 (the effecti...

protection of animals immunized against bacillus anthracis is usually demonstrated by challenging with an appropriate dose of a strain of bacillus anthracis that is lethal to unvaccinated animals inoculated at the same time. in this study the protective efficacy in anthrax vaccine (34f2 sterne strain spore) was evaluated in sheep, goats and guinea pigs challenged with subcutaneous inoculation o...

En el maíz, rendimiento de grano está determinado por número granos mazorca y peso individual (PIG) los mismos, este último es función la tasa (TLLG) períodos total (PLLG) efectivo llenado (PELLG), a estas características se les conoce como componentes del crecimiento. 1997, evaluaron en Campo Experimental Colegio Postgraduados Tecámac Edo. De México, dinámica crecimiento siete líneas maíz cont...

The study used Theory of Planned Behaviour (TPB) to understand the underlying factors for intention adopt artificial insemination (AI) technology in pig by tribal farmers Nagaland. Responses from a survey 72 Nagaland revealed strong intent which is driven favourable attitude towards and approval referent groups pig. Perceived behavioural control seems be main discriminating drivers among theory...

Since, the most susceptible laboratory animal to Foot–and–Mouth disease virus (FMDV) is guinea pig, and then one milliliter of FMDV type (O) concentrations of 106-106.5 TCID50was inoculated intradermally (ID) to 10 plantar surface of guinea pig (right side). Guinea pig adapted virus has been prepared after generalization phase, and then one milliliter of virus was inoculated intradermally to 30...