Animal models are essential for the development of new anti-infectious *** some bacterial infection models have been established in rodents,small primate models are ***,we report on two bacterial infection models esta...
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Animal models are essential for the development of new anti-infectious *** some bacterial infection models have been established in rodents,small primate models are ***,we report on two bacterial infection models established in tree shrew(Tupaia belangeri chinensis).A burnt skin infection model was induced by dropping 5×106 CFU of Staphylococcus aureus on the surface of a wound after a third degree *** dose of *** caused persistent infection for 7 days and obvious inflammatory response was observed 4 days after inoculation.A Dacron graft infection model,2×106 CFU of Pseudomonas aeruginosa also caused persistent infection for 6 days,with large amounts of pus observed 3 days after *** models were used to evaluate the efficacy of levofloxacin(LEV) and cefoperazone(CPZ),which reduced the viable bacteria in skin to 4log10 and 5log10 CFU/100 mg tissue,*** number of bacteria in graft was significantly reduced by 4log10 CFU/mL treatment compared to the untreated group(P0.05).These results suggest that two bacterial infection models were successfully established in tree shrew using *** and *** addition,tree shrew was susceptible to *** and ***,thus making it an ideal bacterial infection animal model for the evaluation of new antimicrobials.
Breast cancer is a common malignant *** is essential to develop suitable animal models for discovering novel preventive and therapeutic *** shrews(Tupaia belangeri chinensis) have a closer evolutionary relationship ...
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Breast cancer is a common malignant *** is essential to develop suitable animal models for discovering novel preventive and therapeutic *** shrews(Tupaia belangeri chinensis) have a closer evolutionary relationship with humans than do rodents,which have been widely used in laboratory *** breast tumors were identified in tree shrews in 1960s;however,no detailed studies about tree shrew breast tumors have been conducted to ***,we characterized a spontaneous breast tumor from tree shrews by Haematoxylin Eosin(HE) *** tumor was identified as a papillary *** staining(IHC) for progesterone receptor(PR),Ki-67 and cleaved caspase-3 showed that tumor cells were positive for PR,highly proliferative,and less apoptotic compared to normal breast epithelial ***,the spontaneous tumor of tree shrew is very close to human papillary tumors in terms of morphology and pathology and we concluded that tree shrew may be a suitable animal model for breast cancer research.
非人灵长类动物是十分重要的生物医学资源。由于与人类在生理生化、免疫、遗传等方面近似,猕猴是重要的非人灵长类实验动物之一。然而,猕猴作为自然宿主,易感染D型逆转录病毒(simian type D retrovirus,SRV)和T淋巴细胞白血病病毒(simia...
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非人灵长类动物是十分重要的生物医学资源。由于与人类在生理生化、免疫、遗传等方面近似,猕猴是重要的非人灵长类实验动物之一。然而,猕猴作为自然宿主,易感染D型逆转录病毒(simian type D retrovirus,SRV)和T淋巴细胞白血病病毒(simian T lymphotropic virus,STLV)这两种逆转录病毒,并可能会影响AIDS猕猴动物模型等的研究结果。猴B病毒(ceropithecine herpesvirus1,BV)对猕猴及动物从业人员均有危害。云南省拥有较大规模的中国猕猴繁殖种群。基于以上原因,建立SPF级别的中国猕猴种群十分必要。该文应用PCR技术筛查了人工饲养种群中411只中国猕猴的SRV、STLV和BV感染流行情况。结果表明:SRV、STLV和BV的阳性感染率分别为19.71%(81/411)、13.38%(55/411)和23.11%(95/411)。同时比较分析了不同性别及年龄组中国猕猴的病毒感染情况。该研究将有助于建立SPF级别的中国猕猴繁殖种群。
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