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Benjamin Geiling, Guillaume Vandal, Ada R Posner, Angeline de Bruyns, Kendall L Dutchak, Samantha Garnett, David Dankort
The ability to express exogenous cDNAs while suppressing endogenous genes via RNAi represents an extremely powerful research tool with the most efficient non-transient approach being accomplished through stable viral vector integration. Unfortunately, since traditional restriction enzyme based methods for constructing such vectors are sequence dependent, their construction is often difficult and not amenable to mass production. Here we describe a non-sequence dependent Gateway recombination cloning system for the rapid production of novel lentiviral (pLEG) and retroviral (pREG) vectors...
2013: PloS One
Kayoko Kawakami, Hiroshi Nishida, Naoto Tatewaki, Yuki Nakajima, Tetsuya Konishi, Masao Hirayama
Persimmon leaf (PL) has been commonly recognized for its wide variety of health benefits. A previous study has reported that persimmon leaf extract (PLE) contained flavonols with the 2″-galloly moiety (PLEg). Galloylated homologues generically show stronger activity in their biological function, so enhanced functions can be expected for PLEg. We investigated in this present study the effect of PLEg on the cellular DNA damage checkpoint signaling to sensitize cancer chemotherapy. Treatment with PLE and PLEg significantly increased the cytotoxicity of doxorubicin (DOX) in A549 adenocarcinoma cells...
2011: Bioscience, Biotechnology, and Biochemistry
Uwe M Fischer, Charles S Cox, Randolph H Stewart, Glen A Laine, Steven J Allen
Studies of the impact of myocardial edema on left ventricular (LV) systolic function show conflicting results. We sought to evaluate the impact of increased myocardial water content (MWC) on LV systolic and diastolic function. Anesthetized dogs (n = 12) were instrumented with myocardial ultrasonic crystals and an LV micromanometer. Systolic function was measured by preload recruitable stroke work (PRSW) and dP/dt(max). Diastolic function was measured by -dP/dt(max) and the isovolumic relaxation constant tau (t)...
January 2006: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
H Jiang, K Zhu
PL and PLEG are biodegradable, biocompatible polymers. They have been widely used for controlled release of drugs. We synthesized PLEG copolymers containing PEG segments with various molecular weight and prepared hCG-loaded PL/PLEG blend microspheres to improve hCG entrapment efficiency. It was shown that the hCG entrapment effciency of PL/PLEG microspheres was higher than that of PL or PLEG microspheres when P(L-co-PEG6000)(90:10) was used. In vitro release test showed that the release of hCG was a burst-slow process, which was thought to be good for antigens to produce antibodies...
March 2000: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
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