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1.
Effects of amikacin, gentamicin, kanamycin, and streptomycin on renal tissue superoxide dismutase, glutathione peroxidase, glutathione and malondialdehyde, serum creatinine, potassium, sodium, total protein, glucose, uric acid, and total bilirubin levels were investigated. All aminoglycoside antibiotics decreased renal tissue glutathione levels.  相似文献   
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The potential insecticidal activity of Spilanthes acmella Murr. (Compositae) extracts was assessed in this study. The extracts were shown to be toxic against adults of American cockroach, Periplaneta americana L. The active component in S. acmella extract was isolated and identified as N-isobutyl-2,6,8-decatrienamide (spilanthol). The results from topical application of spilanthol show that it has a high acute toxicity and spilanthol was the most potent compound when compared to three conventional insecticides. The potency was found to be 1.3, 2.6 and 3.8 times more toxic than carbaryl, bioresmethrin and lindane, respectively. Electrophysiological studies indicated immediate hyperexcitation followed by complete inhibition of the cockroach cercal nerve activity.  相似文献   
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新疆蕨类植物的抗菌活性初探   总被引:4,自引:0,他引:4  
对新疆9种苦头类植物孢子叶或营养叶的抗菌活性进行了生物测定,试验结果表明有6种苦头类植物孢子叶或营养叶对1-2种细菌具有较强的抑制作用,而对真菌均无抑制活性。  相似文献   
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The pharmacokinetics of amoxicillin were studied in five Desert sheep and five Nubian goats after intravenous (i.v.) or intramuscular (i.m.) administration of a single dose of 10 mg/kg body weight. Following i.v. injection, the plasma concentration-versus-time data were best described by a two-compartment open model. The kinetic variables were similar in both species except for the volume of the central compartment (Vc), which was larger in sheep (p<0.05). Following i.m. injection, except for the longer half-life time of absorption in goats (p<0.05), there were no significant differences in other pharmacokinetic parameters between sheep and goats. The route of amoxicillin administration had no significant effect on the terminal elimination half-life in either species. The bioavailability of the drug (F) after i.m. administration was high (>0.90) in both species. These results indicate that the pharmacokinetics of amoxicillin did not differ between sheep and goats; furthermore, because of the high availability and short half-life of absorption, the i.m. route gives similar results to the i.v. route. Therefore, identical intramuscular and intravenous dose regimens should be applicable to both species.  相似文献   
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Favouring Tetranychid mites by intercropping peanut plants on citrus plants and results of chemical control measures The mite populations ofT. cucurbitacearum (Sayed) andT. arabicus (Attiah) reached noxious levels on the peanut plants intercropped on orange trees, during July and August, when the increasing in temperature was accompanied with increasing in humidity. It seems that intercropping the peanut plants on fruit trees and cultural practices may affect as well peanut plant condition as the mortality of mites and consequently increase mite infestation.Regarding, the control experiments, it had been found that 5 acaricides used were very effective in decreasing Tetranychid populations on peanut plants.  相似文献   
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The comparative molluscicidal activity of different preparations ofBacillus thuringiensis as Thuricide, SAN 401, SAN 402 and SAN 415, onB. alexandrina snails was studied. The results showed that different preparations ofBac. thuring. have a remarkable molluscicidal activity onB. alexandrina snails. However, the obtained results proved thatBac. thuring. with its preparation SAN 415 was the most effective in killing the snails comparing with the other preparations at the same experimental condition. Prolonged exposure ofB. alexandrina to subletal concentration (250 ppm) of SAN 415 delayed its ovipositary activity. Increasing the dose to 500 ppm resulted in a complete loss of egg production. Comparatively exposure of snail groups to the same doses of Thuricide, SAN 401 and SAN 402 resulted only in decreasing its egg laying capacity. These results proved the high potentially effectiveness ofBac. thuring. in its preparation SAN 415 as a biological control agent forB. alexandrina snails. The wayes by which this biological agent acts on the reproductive system of the snails were discussed.  相似文献   
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Journal of Pest Science - In einem Labortest wurde die Wirksamkeit des NematodenDiplogaster sp. als Prädator der Zweitlarven der WurzelnematodenMeloidogyne javanica undTylenchulus...  相似文献   
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