نتایج جستجو برای: vivo study

تعداد نتایج: 4202132  

ژورنال: پوست و زیبایی 2018
احمدنصرالهی, سامان, ذوالفقاری, فاطمه, رستگار, حسین, فیروز, علیرضا, هدایت, کمند,

Application of sunscreens is one of the most important ways for skin protection against sunburn, early skin aging and skin cancer. Due to variety of sunscreen products, it is necessary to assure their protection ability against the sun’s damages. Performance assessment of sunscreens against UVB expressed by sun protection factor. Due to great cost of determination methods of this factor in for...

A. Dadkhah, F. Fatemi, M.R. Zolfaghari, Sh. Ghanooni,

Background: Mentha piperita L. essential oils have different antibacterial activity. In the present study, we investigated the effect of &gamma–irradiation on the antibacterial activities of Mentha piperita L. essential oils in vitro and in vivo systems. Materials and Methods: The aerial parts of peppermint were irradiated in a cobalt60 source with 0, 10 and 25 kGy absorbed doses. Then, t...

Background and purpose: Studies showed that biocompatible and biodegradable materials in tissue engineering can be used to heal wounds. The aim of this study was to fabricate polyurethane/royal jelly/hyaluronic acid scaffold with suitable biological properties for wound healing using electrospinning method. Materials and methods: In this applied experimental study, to make a nanofiber scaffold...

Mura Muralidhara, Thyagaraju BM

Background The present study describes the susceptibility of prepubertal testis of mice to prooxidant induced oxidative impairments both under in vitro and in vivo exposure conditions. MaterialsAndMethods Following in vitro exposure to iron (5,10 and 25 M), oxidative response measured in terms of lipid peroxidation and hydroperoxide levels in testis of pre pubertal mice (4 wk) was more robust c...

Journal: :journal of biomedical physics and engineering 0
b. j. allan experimental radiation oncology school of medicine university of western sydney, liverpool 2170 nsw australia

background: the fundamental principles of internal targeted alpha therapy for cancer were established many decades ago.the high linear energy transfer (let) of alpha radiation to the targeted cancer cellscauses double strand breaks in dna. at the same time, the short range radiation spares adjacent normal tissues. this targeted approach complements conventional external beam radiotherapy and ch...

Journal: :iranian journal of radiation research 0
k.v. sharma radiation biology laboratory, department of zoology, university of rajasthan, jaipur, india-302055 r. sisodia radiation biology laboratory, department of zoology, university of rajasthan, jaipur, india-302055

background: radioprotective efficacy of prunus avium fruit extract (pae) rich in vitamin a, c, e and anthocyanin was studied against radiation induced biochemical alterations in mice brain. materials and methods: in-vitro assays were performed with pae for its antioxidant studies thereafter for in-vivo study, swiss albino mice were divided into five groups. group 1 (control) normal mice. group ...

Journal: :بینا 0
علیرضا برادران رفیعی a baradaran rafii مرکز تحقیقات مهندسی بافت چشم- دانشگاه علوم پزشکی شهید بهشتی- تهران- ایران مرضیه ابراهیمی m ebrahimi پژوهشکده زیست شناسی و فناوری سلول های بنیادی جهاد دانشگاهی- مرکز تحقیقات علوم سلولی- گروه سلول های بنیادی و زیست شناسی تکوینی- تهران- ایران نیلوفر شایان n shayan پژوهشکده زیست شناسی و فناوری سلول های بنیادی جهاد دانشگاهی- مرکز تحقیقات علوم سلولی- گروه زیست پزشکی ترمیمی- تهران- ایران کاملیا شهابی k shahabi دانشگاه علوم پزشکی شهید بهشتی- تهران- ایران مجید شمس m shams دانشگاه علوم پزشکی شهید بهشتی- تهران- ایران

purpose: to describe a novel surgical technique for in vivo limbal stem cell cultivation for reconstruction of corneal epithelium in total limbal stem cell deficiency (lscd). methods: patients suffering from chronic total unilateral lscd due to a chemical injury were sequentially included. one small limbal block (2x1 mm) harvested from contralateral healthy eye sutured over the amniotic membran...

P-glycoprotein (P-gp) and cytochrome P450 3A4 (CYP3A4) play a significant role in the disposition and elimination of drugs. The objective of this study was to investigate the mechanism underlying the interaction between sitagliptin (substrate of P-gp and CYP3A4) and verapamil (known modulator of P-gp and CYP3A4) using in vivo, ex vivo and in situ models. Rats were treated with sitagliptin (10 m...

Ali Jomehzadeh, Alireza Amouheidari Anton Mans Ben Mijnheer Mohammad Mohammadi, Parvaneh Shokrani

Introduction: The use of electronic portal imaging devices (EPIDs) is a method for the dosimetric verification of radiotherapy plans both pretreatment and in-vivo. The aim of this study was to test a 2D EPID-based dosimetry algorithm for dose verification of some plans inside a homogenous and anthropomorphic phantom and in-vivo, as well. Materials and Methods: </strong...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده علوم انسانی 1389

abstract this study aimed at analyzing a corpus of emails gathered from iranian students studying in england. the corpus contained 996 emails that were investigated by employing the framework of chen (2006) to find common patterns in the discourse of these emails. another aim of the study was to find how two request acts (want statements and query preparatory) were used in the emails. the...

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