نتایج جستجو برای: graft compatibility
تعداد نتایج: 110639 فیلتر نتایج به سال:
Silkworm's silk is natural biopolymer with unique properties including mechanical robustness, all aqueous base processing and ease in fabrication into different multifunctional templates. Additionally, the nonmulberry silks have cell adhesion promoting tri-peptide (RGD) sequences, which make it an immensely potential platform for regenerative medicine. The compatibility of nonmulberry silk with...
We applied unidirectional MLC test to skin allografts in dogs, and examined the correlation between the strength of the MLC reaction and the survival time of skin allografts. As a result it was found that the skin allografts was rejected within 10 days when the rate of blastformation was more than 18 %. In contrast, the skin graft survived over 13 days when the rate was less than 15 %. The rate...
A new approach to organ transplantation that may be particularly applicable to kidney transplantation is suggested by analogy with the immunological mechanism responsible for the survival of the fetal allograft. The method concerns identifying donor-recipient tissue compatibility by use of the two-way mixed lymphocyte reaction (MLR), in which reacting cells from patients awaiting transplants ar...
Biomechanical properties of a vascular graft scaffold can be optimized by studying the effect of genipin crosslinker. Collagen-based scaffolds were prepared from a mixture of rat tail collagen, chitosan and bovine aortic elastin and crosslinked with varying concentrations of genipin. Biomechanical testing results showed that the linear modulus of the uncrosslinked samples had the least modulus ...
Prosthetic grafts are required for coronary artery bypass grafting (CABG) when the availability of suitable autologous conduits is limited. The ideal cardiovascular bypass graft requires a broad range of characteristics including strength, viscoelasticity, biocompatibility, blood compatibility and biostability. Many alternative conduits have been developed and used in the past, but most of them...
abstract to study the effect of nitrogen application and 2-4-d on weed density and weed architecture in winter wheat an experiment was conducted at agricultural research site, university of mohaghegh ardabili, ardabil in 2009. treatments were two nitrogen levels (no fertilizer and 150 kgnha-1 application) with or without 2-4-d (1.5 kg ai ha-1). results showed that nitrogen application had no si...
It is commonly held that Wittgenstein abandoned the Tractatus largely because of a problem concerning color incompatibility. My aim is to solve this problem on Wittgenstein’s behalf. First I introduce the central program of the Tractatus (§1) and the color incompatibility problem (§2). Then I solve the problem without abandoning any Tractarian ideas (§3), and show that given certain weak assump...
In this study layer by layer (LBL) self-assembled coatings of hyaluronic acid (HA) and cationized gelatin (CG) were used to modify polyethylene terephthalate (PET) artificial ligament grafts. Changes in the surface properties were characterized by scanning electron microscopy, attenuated total reflection Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, and contact ...
We hypothesized that the compatibility of each HLA loci between donor and patient induced divergent transplant-related immunologic responses, which attributed to the individualized manifestation of clinical outcomes. Here, we analyzed 7898 Japanese pairs transplanted with T-cell-replete marrow from an unrelated donor with complete HLA allele typing data. Multivariable competing risk regression ...
Human leucocyte antigen (HLA) compatibility is the main factor determining the occurrence of graft-vs-host disease (GVHD) in patients. It has also been shown that minor histocompatibility antigen differences as well as genetic polymorphisms that are not sequenced by standard methodology for HLA typing can play a role. We used mixed lymphocyte cultures (MLCs) as a functional cellular test and in...
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