نتایج جستجو برای: synergist effect
تعداد نتایج: 1641965 فیلتر نتایج به سال:
In the last decades, bacterial resistance to antimicrobials has become a serious threat to clinical and public health. Traditional methods of antibiotic discovery have failed to get new alternatives and solutions to face the fast rhythmus of resistance evolution. Therefore, new strategies to control bacterial infections are highly desirable. The therapeutic value of plant extracts is well-known...
The resistance status towards permethrin among the laboratory strain, the permethrin-selected strain and four field strains of Culex quinquefasciatus collected in Kuala Lumpur, Malaysia was determined using three standard laboratory methods: WHO larval bioassay, WHO adult bioassay and biochemical microplate assay. Cx. quinquefasciatus permethrin-selected strain larvae were the least susceptible...
The present study was designed to explore how the interaction between the fascicles and tendinous tissues is involved in storage and utilization of elastic energy during human walking. Eight male subjects walked with a natural cadence (1.4 +/- 0.1 m/s) on a 10-m-long force plate system. In vivo techniques were employed to record the Achilles tendon force and to scan real-time fascicle lengths f...
The study examined the hypothesis that altered synergistic activation of the knee extensors leads to cyclic modulation of the force fluctuations. To test this hypothesis, the force fluctuations were investigated during sustained knee extension at 2.5% of maximal voluntary contraction force for 60 min in 11 men. Surface electromyograms (EMG) were recorded from the rectus femoris (RF), vastus lat...
In this study we measured in vitro honey bee enzyme activities in presence of the synergist piperonyl butoxide (PBO) and some new benzodioxole and dihydrobenzofuran derivatives through absorbance and fluorescence spectrophotometric assays, to determine if and to what extent detoxification systems and acetylcholinesterases are affected by these compounds. Both Italian (Italy) and Carniolan (Czec...
Selection for spirodiclofen resistance was done in the laboratory with a susceptible strain of the citrus red mite, Panonychus citri (McGregor). Successive selections for spirodiclofen resistance through 42 generations resulted in a high level of resistance and the resistance ratio at LC50 was 103 compared with that of the original susceptible strain. In the selected strain, the level of resist...
Venous thromboembolic complications are often associated with malignant diseases. The treatment and prevention of these events in cancer patients is frequently carried out using low-molecular-weight heparin (LMWH). However, heparin has other pharmacological effects in addition to the antithrombotic activities [1], e.g., antimetastatic and antiangiogenetic activities and these are currently subj...
Phosphine (hydrogen phosphide, PH3) is the fumigant most widely used to protect stored products from pest infestation. Despite the importance of this chemical, little is known about its mode of action. We have created three phosphine-resistant lines (pre-1, pre-7, pre-33) in the model organism C. elegans, with LC50 values 2, 5, and 9 times greater than the fully susceptible parental strain. Mol...
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