Planarian Immobilization, Partial Irradiation, and Tissue Transplantation
نویسندگان
چکیده
منابع مشابه
Planarian immobilization, partial irradiation, and tissue transplantation.
The planarian, a freshwater flatworm, has proven to be a powerful system for dissecting metazoan regeneration and stem cell biology. Planarian regeneration of any missing or damaged tissues is made possible by adult stem cells termed neoblasts. Although these stem cells have been definitively shown to be pluripotent and singularly capable of reconstituting an entire animal, the heterogeneity wi...
متن کاملEthics of Tissue and Stem Cell Transplantation
Tissue and cell transplantation are regarded as a popular procedure in clinical sciences, prospecting a new horizon for several incurable diseases. Along with its usefulness, many ethical concerns accompany this development. The ethical issue of organ transplant is unique to the source used which includes: living related, living unrelated, cadaveric, and xenotransplant. Obtaining organs has a s...
متن کاملResistance of two planarian species to UV-irradiation.
The aim of this work was to determine the effects of 20, 25 and 30 minute UV-irradiation periods lambda = 253.5 nm to two planarian species Dugesia tigrina (Gir.) and Polycelis felina (Daly.). In vivo, UV light effects have been reported to affect intracellular receptors and disrupt simple behaviour. The effects of UV-rays on mortality and behavior as well as morphological, cytological and hist...
متن کاملCell death and tissue remodeling in planarian regeneration.
Many long-lived organisms, including humans, can regenerate some adult tissues lost to physical injury or disease. Much of the previous research on mechanisms of regeneration has focused on adult stem cells, which give rise to new tissue necessary for the replacement of missing body parts. Here we report that apoptosis of differentiated cells complements stem cell division during regeneration i...
متن کاملEffect of Irradiation and Immobilization on Spinach Chloroplast Activities
Radiation Effect, Chloroplast, 0 2 Evolution, Immobilization, Radiation Polymerization, Low Temperatures The effect of y-ray irradiation and immobilization by means of radiation polymerization on PS II activity ( 0 2 evolution) of isolated chloroplasts from spinach was investigated. Reduction of 0 2 evolution activity by irradiation was small at lower temperatures below — 24 °C, but the activit...
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ژورنال
عنوان ژورنال: Journal of Visualized Experiments
سال: 2012
ISSN: 1940-087X
DOI: 10.3791/4015