نتایج جستجو برای: explant technique
تعداد نتایج: 614595 فیلتر نتایج به سال:
PURPOSE The clinical success of treating corneas with total limbal stem cell deficiency using limbal biopsy explants cultured on intact amniotic membrane (iAM) relies on ex vivo expansion of limbal epithelial progenitor cells. However, the ultimate fate of limbal epithelial progenitor cells in the explant remains unclear. METHODS Human limbal explants were cultured on iAM for 2 weeks and then...
Many of the therapeutic interventions for intervertebral disc degeneration attempt to repopulate the nucleus pulposus (NP) tissue; however, NP cells are heterogeneous and not well characterized. To address this, we have investigated the morphology, extracellular gene and protein expression, and apoptosis changes in NP explants cultured in vitro with or without chondrogenic reagents for differen...
A non-chemical technique for surface sterilizing plant-parasitic nematodes for aseptic cultures is described. The method is most applicable to nematodes with active migratory infective stages and requires only a few starting specimens. Rate of achieving a primary aseptic culture with the technique ranged from 60%-100% depending on the conditions of the specimens collected for culturing. Aseptic...
the present study was carried out to investigate micropropagation possibility and determine the optimal medium composition and plant growth regulators (pgrs) combinations under in vitro conditions. the cotyledon and epicotyl explants obtained from 1 month old in vitro grown seedlings were used in ms medium containing ba (0.1, 0.2, 0.5, 1, 2 and 3 mg-1) and tdz (0.1, 0.2, 0.5, 1, 2 and 3 mg-1) e...
It is now more than 50 years since Ross Harrison (1907) inaugurated the technique of tissue culture in vitro, and at the same time settled for ever the controversy as to the origin of nerve fibres; he explanted fragments of a tadpole's spinal cord in a drop of lymph spread on a coverslip sealed to a hollow-ground slide and observed the outgrowth of naked nerve fibres into the surrounding fluid....
OBJECTIVES Fulminant myocarditis with cardiogenic shock is fatal without mechanical circulatory support. Once haemodynamic stability has been established with a ventricular assist device (VAD), the decision to wait for myocardial recovery as opposed to listing for an orthotopic heart transplant (OHT) can be difficult. We have undertaken this study to establish the criteria for determining the n...
the present study sought to investigate the impact of using mind-mapping technique instruction on female elementary efl learners reading comprehension; it also investigated their attitudes towards using mind-mapping technique as a tool to improve their reading comprehension. this study followed a quasi-experimental design with two intact groups as experimental, and control groups. the participa...
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