1,721,253 research outputs found
Stimolatori biologici per la rigenerazione dei tessuti in ortopedia : indicazioni terapeutiche
No full textHyperactivation of stallion sperm in follicular fluid for in vitro fertilization of equine oocytes
No full textMetabolic aspects in bovine preovulatory and in vitro matured oocytes: a cytochemical approach
No full textStudies conducted with the mouse and, to a lesser extent, the rabbit provide the vast majoruty of the existing informations on the metabolic enzymes of the mammalina ovum. In sharp contrast such data are almost non existent for domestic animal ova. In the present preliminary study we used a cytochemical quantitative assay to measure succinate dehydrogenase (SDH) and lactate dehydrogenase (LDH) activities in preovulatory oocytes collected from ovaries of non pregnant cows at the local abbatoir
Fecondazione in vitro di ovociti equini con spermatozoi capacitati in vitro ed iperattivati in liquido follicolare
No full text
Are the cows with reproductive problems suitable as embryo donors?Are the cows with reproductive problems suitable as embryo donors
No full textnon disponibil
Fetal adnexa derived stem cells from domestic animal : progress and perspectives
No full textThe fetal adnexa such as umbilical cord, amnion and amniotic fluid have been proposed as ideal sources of different stem cell
lineages. Use of adnexal tissue has many potential advantages, including the noninvasive nature of the isolation procedure, the large tissue mass from which cells can be harvested with high efficiency and the potential of these cells to differentiate. Moreover, particularly
in human medicine, the harvesting of these tissues is more ethically acceptable making these sources of stem cells very attractive for regenerative therapies and biotechnological applications. The adnexal tissue cells preserve some of the characteristics of the primitive
embryonic layers from which they originate. Indeed, many studies indicate that these stem cells exhibit some features of embryonic stem cells as expression of embryonic markers and proliferation capability, without showing immunogenicity. However, the differentiation
potential of these cells, either in vivo or in vitro, is intermediate between the pluripotent embryonic stem cells and the multipotent adult stem cells. Non-embryonic extra-fetal derived stem cells have opened new perspectives for developmental biology and for regenerative medicine, not only in humans but also in animals. In this update, we report the state of the art of fetal adnexa-derived stem cells from domestic animals and analyze their applications and potential uses in veterinary medicine
Alterazioni morfologiche dell’acrosoma degli spermatozoi di cane dopo diluizione e congelamento
No full textValutazione dell'attività telomerasica in neoplasie mammarie della cagna :un potenziale strumento diagnostico
No full textNegli ultimi anni nella letteratura scientifica
si è sviluppato un considerevole
interesse verso lo studio dell’attività
telomerasica come target per l’intervento
diagnostico e terapeutico in oncologia.
Un vasto numero di lavori ha, infatti,
dimostrato l’espressione e l’attività
dell’enzima telomerasi nella maggioranza
dei tessuti tumorali umani e scarsa
o non determinabile attività nei tessuti
somatici normali. Studi analoghi si stanno
compiendo nelle specie domestiche, in
particolare in quella canina e felina.
In questo lavoro è stata valutata l’attività
telomerasica in campioni di tumori
mammari canini prelevati sia con biopsia
e, dalla comparazione con i corrispondenti
campioni mammari normali
provenienti dagli stessi soggetti, è stato
possibile caratterizzare, sotto il profilo
dell’attività telomerasica, alcuni tipi di
neoplasie mammarie
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