Threalose
Mostrando 1-6 de 6 artigos, teses e dissertações.
-
1. Influence of seminal plasma proteins on frozen ram semen quality / Influência das proteínas do plasma seminal sobre a qualidade do sêmen ovino congelado
The expansion of artificial insemination (AI) programs with frozen ram semen has been limited by the need of intrauterine semen deposition and by the inconsistency of the association between the conventional methods used to evaluate semen quality and in vivo fertility. An alternative to improve the efficiency of AI programs would be the profiling of the prot
Publicado em: 2009
-
2. Influência da temperatura e de aditivos na matriz fosfolipídica usada para incorporação de fosfatases alcalinas pela técnica de Langmuir-Blodgett / Influence of the temperature and adtives in phospholipidic matrix utilized to Alkaline Phosphatases incorporation by Langmuir-Blodgett tecnique
ABSTRACT Alkaline phosphatases (AP) are unspecific enzymes that hydrolyze phosphate esthers. In this Dissertation we have studied the adsorption of two forms of AP in phospholipid Langmuir monolayers and Langmuir-Blodgett films, considered as biomembrane models, at different temperatures. Further, the effect of the presence of a disaccharide, trehalose, as w
Publicado em: 2007
-
3. Effect of external cryoprotectants on the in vitro viability of frozen spermatozoa of SWISS-ALBINA and BALB/c mice (Mus musculus). / Efeito de crioprotetores externos sobre a viabilidade in vitro de espermatozóides congelados de camundongos (Musmusculus) das linhagens SWISSALBINA e BALB/c.
The genetic progress obtained with trangenesis required the development and consolidation of reproductive techniques such as in vitro embryo production and gamete cryopreservation. With the diversity of new models and genetic lines, it became critical to optimize the use of experimental techniques of cryopreservation of semen in different animal species. The
Publicado em: 2006
-
4. Criopreservation of canine semen using associations of crioprotectors and two protocols to unfreeze / Criopreservação de sêmen canino, utilizando associações de crioprotetores e dois protocolos de descongelamento
The objective of this work was to evaluate the effect of permeable and unpermeable protocols in the same dilution media and to compare two unfrozen canine semen protocols. Three adults males from Labrador Retrievier breed, were submitted to weekly collection of semen for five weeks, in a total of 15 samples in each experimental design. The in vitro testes ap
Publicado em: 2006
-
5. PurificaÃÃo e caracterizaÃÃo da lectina da vagem de Caesalpinia ferrea (cfepl): aplicaÃÃo biolÃgica
Lectins are proteins that bind specifically and reversibly to carbohydrates. Caesalpinia ferrea is a leguminous tree widely distributed in Brazil used in popular medicine. The aim of this work was the purification and characterization of C. ferrea pod lectin (CfePL). Pod extract (E) in 0.15 M NaCl was partially purified on activated charcoal followed by ammo
Publicado em: 2004
-
6. "Estudo químico e atividades biológicas de extratos obtidos de culturas de Penicillium verrucosum Dierck" / Chemical study and biological activities of crude extracts obtained from different cultures of Penicillium verrucosum Dierck
The absence of an effective treatment for Chagas disease and Leishmaniasis stimulates the search for new active compounds. The enzymes GAPDH from T. cruzi and APRT from L. tarentolae are attractive targets for rational search of antiprotozoal agents, taking part in essential pathways of the pathogens. Natural products are rich in structural diversity and b
Publicado em: 2003