نتایج جستجو برای: nmri system
تعداد نتایج: 2232586 فیلتر نتایج به سال:
سابقه و هدف: فیناستراید ترکیب 4-آزاستروئید، بازدارنده اختصاصی α5- ردوکتاز تیپ ii می باشد که تستوسترون را به α5-دی هیدروتسترسترون تبدیل می کند. در تحقیق حاضر، تأثیر دوز انسانی فیناستراید بر تعداد سلول ها، قطر و ضخامت توبول های بیضه، پروستات و اپیدیدیم موش نر نژاد nmri بالغ در شرایط in vivo و in vitro بررسی شد. روش بررسی: در این مطالعه تجربی، در شرایط in vivo، 18 موش به 3 گروه شش تایی تقسیم شدند:...
Recent evidence supports the involvement of inducible, highly diverse lectin-like recognition molecules in snail hemocyte-mediated responses to larval Schistosoma mansoni. Because host lectins likely are involved in initial parasite recognition, we sought to identify specific carbohydrate structures (glycans) shared between larval S. mansoni and its host Biomphalaria glabrata to address possibl...
We describe a localized proton magnetic resonance spectroscopy ((1)H-MRS) method for in vivo measurement of lipid composition in very small voxels (1.5 mm x 1.5 mm x 1.5 mm) in adipose tissue in mice. The method uses localized point-resolved spectroscopy to collect (1)H spectra from voxels in intra-abdominal white adipose tissue (WAT) and brown adipose tissue (BAT) deposits. Nonlinear least-squ...
The Artificial Ground Freezing (AGF) method, which is widely used in tunnel excavations, significantly affects the properties of geotechnical materials frozen walls under extremely low temperatures. In order to simulate AGF process, freezing treatment with a temperature −30°C and thawing 25°C were performed on natural specimens granite residual soil (GRS). Subsequently, triaxial (TRX) tests con...
objective(s):recent evidence have proposed that tretinoin produced in the gut preferentially promote differentiation of foxp3+treg cells but inhibits th17 lymphocytes, and this may be the main immunomdulatory mechanism of tretinoin in vivo. this study was done to investigate the effects of tretinoin in outbred white mice after challenge with sheep red blood cells (srbc). materials and methods:...
PURPOSE Quantitative dynamic contrast-enhanced MRI requires an accurate arterial input function (AIF). At high field, increased susceptibility effects and decreased longitudinal relaxivity of contrast agents lead to predominant T2* effects in blood vessels, producing a dip in signal during passage of the contrast agent bolus. This study determined phase-derived AIFs in mice at 11.7 T. METHODS...
Human transitional cell carcinoma of the bladder was successfully transplanted into the bladder of the NMRI-nu/nu mouse. Transplantation of a single-cell suspension from a human Grade II transitional cell carcinoma had an acceptance rate of 33%. The tumors showed invasive growth and could be identified by an anti-human monoclonal antibody. This tumor model can be valuable as an in vivo test sys...
Interactions between early developing Schistosoma mansoni larval stages and the hemolymph of its snail intermediate host represent the first molecular encounter with the snail's immune system. To gain a more comprehensive understanding of this early parasite-host interaction, biotinylated sporocyst tegumental membrane (Mem) proteins and larval transformation proteins (LTP) were affixed to strep...
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