هدف: عدم توانایی ترمیم خود به‫خودی بافت غضروف به‫دنبال ایجاد آسیب‌ مفصلی، نیازمند یک رویکرد درمانی موثر است. اخیرا نقش وزیکول‌های خارج سلولی (EV) در ارتباطات و از طریق تنظیم فرایندهای مورد توجه قرار گرفته هدف این مطالعه، مقایسه غضروف­زایی EVهای مشتق هم‌کشتی کندروسیت/سلول بنیادی مزانشیمی با نسبت‌های 1 به 2 4 شرایط برون‌تنی مواد روش‌ها: راستا، سلول‌ها جداسازی مشخصه­یابی شدند. محیط‌های رویی سلول‌ه...

We describe an enzymic quantification of total hydrolyzable glycerol in amniotic fluid. An extract of amniotic fluid is hydrolyzed in mild alkali, without pretreatment with lipase. The resulting glycerol (some of which may be derived from trace amounts of triglyceride) is then enzymatically phosphorylated with adenosine 5'-[gamma 32P]triphosphate to yield glycerol [gamma 32P]phosphate. After re...

We summarize the spectral characteristics of a sample of 22 bright γray bursts detected with the γ-ray burst sensors aboard the satellite Ginga. This instrument employed a proportional and scintillation counter to provide sensitivity to photons in the 2 400 keV range, providing a unique opportunity to characterize the largely unexplored X-ray properties of γ-ray bursts. The photon spectra of th...

The present study involves an analysis of the performance of liquid chromatography (LC)-accurate radioisotope counting (ARC) and microplate scintillation counter (TopCount) technologies in drug metabolism studies. For the purpose of evaluating these systems, biological samples resulting from the metabolism of a radiolabeled [14C] compound, known as compound B, are analyzed using LC-ARC and TopC...

We have investigated the spectral characteristics of a sample of bright γ-ray bursts detected with the γ-ray burst sensors aboard the satellite Ginga. This instrument employed a proportional and scintillation counter to provide sensitivity to photons in the 2 400 keV region and as such provided a unique opportunity to characterize the largely unexplored X-ray properties of γ-ray bursts. The pho...