نتایج جستجو برای: vivo

تعداد نتایج: 331386  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده کشاورزی 1390

به منظور بررسی قابلیت مهار آفلاتوکسین b1 توسط پروبیوتیک باسیلوس، آزمایش های in vitro و in vivo انجام شد. از محتویات دستگاه گوارش 40 قطعه طیور مختلف 350 ایزوله باسیلوس جداسازی گردید. پس از انجام تست های پروبیوتیکی رایج و آزمون آفلاتوکسین زدایی بر روی جدایه ها ، یک جدایه که واجد بالاترین صفات مورد بررسی بود انتخاب و به عنوان laterosporus (bl) berevibacillus شناسایی گردید و در آزمایش مزرعه ای مورد...

Journal: :iranian journal of applied animal science 2015
k.g.m. mahmoud a.a.e. el-sokary m.e.a. abou el-roos a.d. abdel ghaffar m. nawito

semen quality and its relationship to fertility are major concern in animal production. the aim of this study was to assess the relationship between frozen thawed sperm characteristics and fertility following in vivo fertility through artificial insemination(ai). semen samples were collected from four buffalo bulls. semen volume and sperm concentration appeared to be significantly different (p0...

ژورنال: :فصلنامه علوم پزشکی دانشگاه آزاد اسلامی واحد پزشکی تهران 0
کاظم پریور kazem parivar department of biology, islamic azad university, science and research campus, tehran, iranگروه زیست شناسی جانوری، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران نسیم حیاتی رودباری nasrin hayati roodbari department of biology, islamic azad university, science and research campus, tehran, iranگروه زیست شناسی جانوری، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران علیرضا بدیعی alireza badiyee department of chemistry, college of science, tehran university, tehran, iranدانشکده شیمی، پردیس علوم تهران، دانشگاه تهران مریم السادات نژادفاضل maryam nejadfazel msc, department of biology, islamic azad university, science and research campus, tehran, iranدانشجوی کارشناسی ارشد زیست شناسی جانوری، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران

سابقه و هدف: نانو مواد شامل موادی در اندازۀ 1 تا 100 نانومتر و یا حتی کوچک تر هستند که می توانند به راحتی از پوست، آلوئولهای ریه و حتی از جفت عبور کنند. به همین منظور، به مطالعۀ تاثیرات نانو اکسید روی بر تکوین جوانه اندام حرکتی جنین موشها پرداخته شد. روش بررسی: پژوهش تجربی به طریقه in vivo صورت گرفت. موش های باردارگروه های تجربی در روز11 بارداری، مورد تزریق یک بار نانواکسیدروی، در دوزهای g/kg 5...

Journal: :nanomedicine journal 0
akram valipoor department of physiology, faculty of basic sciences, shahrekord branch, islamic azad university, shahrekord, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) gholamreza amiri department of physics, falavarjan branch, islamic azad university, isfahan, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) kazem parivar department of biology, science and research branch, islamic azad university, tehran, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) mehrdad modaresi department of physiology, islamic azad university, khorasgan branch, isfahan, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) jafar taheri department of chemistry, islamic azad university, shahrekord, iran .سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) ali kazemi department of chemistry, islamic azad university, shahrekord, iran .سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch)

objective(s):  medicinal benefits of quantum dots have been proved in recent years but there is little known about their toxicity especially in vivo toxicity. in order to use quantum dots in medical applications, studies ontheir in vivo toxicity is important.  materials and methods:cdse:zns quantum dots were injected in 10, 20, and 40 mg/kg doses to male mice10 days later, mice were sacrificed ...

Journal: :Magnetic resonance imaging 2003
Thomas J Lowery Seth M Rubin E Janette Ruiz Megan M Spence Nicolas Winssinger Peter G Schultz Alexander Pines David E Wemmer

The chemical shift sensitivity and significant signal enhancement afforded by laser-polarized 129Xe have motivated the application of 129Xe NMR to biological imaging and spectroscopy. Recent research done by our group has used laser-polarized 129Xe in biomolecular assays that detect ligand-binding events and distinguish protein conformations. The successful application of unfunctionalized and f...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2010
Hao Hong Yin Zhang Weibo Cai

RNA interference (RNAi), an effective technique for regulating or silencing specific genes, can be applied to treat various diseases. Multiple clinical trials using RNAi are ongoing, and molecular imaging can serve as a powerful tool in RNAi-based therapies. This brief review will highlight the current progress on in vivo imaging of RNAi delivery and silencing effects. Incorporation of suitable...

Journal: :Chemical communications 2014
Jongmin Park Jung In Um Ala Jo Jinho Lee Da-Woon Jung Darren R Williams Seung Bum Park

The molecular charge of fluorescent bioprobes has recently received much attention due to its influence on cellular uptake. Herein, we demonstrate the effect of the molecular charge of glucose bioprobes on their GLUT-specific cellular uptake. We also applied GB2-Cy3 to in vivo imaging in the zebrafish model.

Journal: :Journal of biomedical optics 2003
Joanna Malicka Ignacy Gryczynski Chris D Geddes Joseph R Lakowicz

Indocyanine green (ICG) is widely used in medical imaging and testing. Its complex spectral behavior and low quantum yield limits some applications. We show that proximity of ICG to a metallic silver particle increases its intensity approximately 20-fold and decreases the decay time. Since the rate of photobleaching is not increased, our results suggest that ICG-silver particle complexes can yi...

2012
Marco Brondi Sebastian Sulis Sato Luigi Federico Rossi Silvia Ferrara Gian Michele Ratto

The combination of two-photon in vivo imaging and genetic labeling of specific cell types in the mouse brain is a powerful method to refine our understanding of brain circuitry and to dissect the contribution of specific neural classes to cortical function. The synthetic calcium indicators are the best fluorescent reporters for cellular activity that are presently available but their spectral p...

Journal: :Nature reviews. Neuroscience 2006
Catherine Sorbara Thomas Misgeld Martin Kerschensteiner

Cellular in vivo imaging can reveal the induction, progression and resolution of nervous system pathology in real-time. In this review, we summarize recent research in the field to illustrate how in vivo imaging has enhanced our understanding of a variety of neurological conditions caused by trauma, degeneration, ischemia or inflammation. Finally, we look ahead and discuss how novel biosensors ...

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