Results 171 to 180 of about 6,308 (187)
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LOSS OF PHOTOREVERSIBILITY OF SUNBURN CELL INDUCTION IN Monodelphis domestica
Photochemistry and Photobiology, 1987AbstractExposure of the South American opossum, Monodelphis domestica, to ultraviolet radiation (UVR) resulted in the formation of sunburn cells (SBCs) in the epidermis. If, however, the UVR was immediately followed by an exposure to photoreactivating light, which reversed ∼ 95% of the UVR‐induced pyrrolidine dimers in epidermal DNA, the appearance of ...
R D, Ley, L A, Applegate
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Meiotic sex chromosome inactivation in the marsupial Monodelphis domestica
genesis, 2007AbstractIn eutherian mammals, the X and Y chromosomes undergo meiotic sex chromosome inactivation (MSCI) during spermatogenesis in males. However, following fertilization, both the paternally (Xp) and maternally (Xm) inherited X chromosomes are active in the inner cell mass of the female blastocyst, and then random inactivation of one X chromosome ...
Jacey L, Hornecker +4 more
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Testis development in the opossum Monodelphis domestica.
Journal of anatomy, 1997Testis development in the grey short-tailed opossum, Monodelphis domestica, was investigated by light and electron microscopy in 180 animals. On the day of birth, half the karyotyped males were found to have histologically differentiated testes. By day (d) 1 testicular cords were clearly distinguished in all XY gonads and the tunica albuginea was fully
Q, Xie +4 more
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Conspecific odor investigation by gray short-tailed opossums (Monodelphis domestica)
Physiology & Behavior, 2003Gray short-tailed opossums (Monodelphis domestica) are small marsupials, which have recently become the subjects of numerous laboratory investigations. While these opossums have well-developed olfactory systems and complex scent-marking behaviors, the significance of their use of odors in conspecific communication is still poorly understood ...
Ido, Zuri, Wei, Su, Mimi, Halpern
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Angioarchitecture and morphology of temporomandibular joint of Monodelphis domestica
Microscopy Research and Technique, 2016ABSTRACTThe opossum Monodelphis domestica presents movement of the temporomandibular joint (TMJ) reflecting adaptation to eating habits similar to movement in humans, but the structure of the TMJ is not yet known. Thus, nine young M. domestica, of both sexes were weighed, anesthetized with xylazine (10 mg kg−1), and ketamine (70 mg kg−1) and processed ...
Matheus Silvestre, Minucci +7 more
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Aldolase C polymorphism in the laboratory opossum, Monodelphis domestica
Animal Genetics, 1997A two‐allele polymorphism in aldolase C was identified in brain extracts of grey short‐tailed opposums, Monodelphis domestica, by electrophoresis in starch or cellulose acetate gels. Pedigree data were consistent with autosomal codominant inheritance. The polymorphism was present in two of the six genetically distinct laboratory populations that have ...
O V, Sokolova +2 more
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Central pH Chemosensitivity in the Newborn Opossum Monodelphis Domestica
1996Central and peripheral chemoreceptors provide tonic drive to the neuronal network that generates respiratory rhythm. The peripheral chemoreceptor organs (carotid and aortic bodies) are well defined, whereas the identity of the structures in charge of mammalian central chemoreception are still uncertain (Coates et al, 1993).
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Metallothioneins of the South American opossum, Monodelphis domestica
2023Metallothioneins are small, cysteine-rich, metal-binding proteins which occur ubiquitously throughout the animal kingdom. After several decades of research, a definitive function for these metallothioneins has yet to be clarified. Many metallothioneins have been characterised in the placental mammals (subclass Eutheria) and their occurrence in complex ...
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Monodelphis domestica: A NEW ANIMAL MODEL FOR STUDIES IN PHOTODERMATOLOGY*
Photochemistry and Photobiology, 1987AbstractThe ability to photoreverse pyrimidine dimers in DNA of the South American opossum Monodelphis domestica provides a powerful tool with which to probe the role of pyrimidine dimers in ultraviolet radiation (UVR)‐induced histopathologic changes of the skin of this mammal. We have observed that post‐UVR exposure to photoreactivation light not only
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Opossum (Monodelphis domestica) terminal deoxynucleotidyl transferase gene
Immunogenetics, 1998A M, Guth, G H, Rosenberg, R D, Miller
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