نتایج جستجو برای: zinc scaffold

تعداد نتایج: 97235  

ژورنال: ارمغان دانش 2019

Background and Objective: Tissue engineering is a new method for replacing damaged tissue components in order to improve its function. In this method, a porous scaffold mixed with polysaccharide and synthetic antioxidants is first produced and then stem cells are cultured inside it. In this study, the polycaprolactane-chitosan-tannic acid scaffold was used to reproduce the amount Fibroblast cel...

Journal: :مجله علوم اعصاب شفای خاتم 0
sajad sahab negah a. shefa neuroscience research center, khatam alanbia hospital, tehran, iran. b. histology and embryology group, basic science department, veterinary medicine faculty, shiraz university, shiraz, iran. hadi aligholi shefa neuroscience research center, khatam alanbia hospital, tehran, iran. shahin mohammad sadeghi department of plastic and reconstructive surgery, shahid beheshti university of medical sciences, tehran, iran. mostafa modarres mousavi shefa neuroscience research center, khatam alanbia hospital, tehran, iran.

neuroinflamation occurring after traumatic brain injury (tbi) is a complex phenomenon comprising distinct cellular and molecular events involving the injured cerebral tissue. mechanical injury to adult rat brain elucidated the accumulation in the affected area of trophic activity. in the tissue adjacent to the injury, trophic titers began to rise after the lesion. this study aimed to determine ...

اسدی, اسداله , سقا , محسن , منصوری‌زاده , فریبا , میری, وحیده , گل‌محمدی , محمدقاسم ,

    Background & Aims: Nerve tissue engineering (NTE) is one of the most promising methods for the treatment of the central nervous system (CNS) neurodegenerative diseases. The three-dimensional distribution and growth of the cells within the porous of the scaffold have a significance clinical role in the NTE field. Scaffolds used in tissue engineering, not only must have a good performance, bu...

Journal: :modares journal of medical sciences: pathobiology 2013
ali mota abbas lotfi jalal barzin mohammad massumi mostafa hatam

objective: in this study we introduced an rgd-containing peptide of collagen iv origin that possesses potent cell adhesion and proliferation properties. this peptide was immobilized on a nanofibrous polycaprolactone/gelatin scaffold after which we analyzed human bone marrow-derived mesenchymal stem cells (hbmscs) adhesion and proliferation on this peptide-modified scaffold. methods: nanofibrous...

Journal: :cell journal 0

objective: to date, several scaffolds have been fabricated for application in bone tissue repair. however, there remains a need for synthesis of scaffolds with better mechanical properties, which can be applied to defects in weight-bearing bones. we constructed a composite ceramic bioscaffold of hydroxyapatite-alumina and silicon carbide (ha-al2o3- sic) to take advantage of the mechanical prope...

Journal: :nanomedicine journal 0
a. doustgani department of chemical engineering, university of zanjan, zanjan, iranسازمان اصلی تایید شده: دانشگاه زنجان (zanjan university) m. s. pedram faculty of veterinary medicine, university of tehran, tehran, iranسازمان اصلی تایید شده: دانشگاه تهران (tehran university)

objective(s): in this study, the effect of electrospun fiber orientation on proliferation and differentiation of mesenchymal stem cells (mscs) was evaluated. materials and methods: aligned and random nanocomposite nanofibrous scaffolds were electrospun from polylactic acid (pla), poly (vinyl alcohol) (pva) and calcium carbonate nanoparticles (ncap). the surface morphology of prepared nanofibrou...

نیک‏ نژاد, حسن, پیروی, حبیب‏الله ,

Background and purpose: One of the recent techniques for increasing the output of cryopreservation is using different scaffolds in long-term preservation of stem cells for cell therapy. Undesirable differentiation and decrease in the number of viable cells are two major problems in this process. In order to overcome these problems, in this study the human amniotic epithelial cells were cryopres...

Journal: :BMC Biotechnology 2008
Yong Wei Dajun Ying Chunli Hou Xiaoping Cui Chuhong Zhu

BACKGROUND Artificial transcription factors (ATFs) are composed of DNA-binding and functional domains. These domains can be fused together to create proteins that can bind a chosen DNA sequence. To construct a valid ATF, it is necessary to design suitable DNA-binding and functional domains. The Cys2-His2 zinc finger motif is the ideal structural scaffold on which to construct a sequence-specifi...

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