Results: Okra gel formulation showed good properties in terms of pH, viscosity and mucoadhesion. The drug was able to permeate through the goat nasal mucosa within 255 min. The test okra nasal gel, with and without enhancer, showed superior permeation properties to gels prepared with synthetic polymers – hydroxylpropyl methylcellulose (HPMC) and
sodium carboxymethyl cellulose (NaCMC). For example, drug flux (j) of okra nasal gel formulation and gel formulations made with HPMC and NaCMC was 134.8, 120.9 and 84.8, respectively.
Conclusion: Okra mucilage is a promising natural and safe gel former that can be developed to serve as an alternative selleck inhibitor to currently used synthetic gel formers for nasal drug delivery.”
“Contents Our objectives were (i) compare in vitro development of early cleavage stage domestic cat embryos after cryopreservation by minimal volume vitrification vs a standard slow, controlled-rate method, (ii) determine viability of vitrified domestic cat embryos by oviductal transfer BIBW2992 concentration into synchronous recipients and (iii) evaluate in vivo survival of black-footed cat (BFC, Felis nigripes) embryos after intra- and inter-species transfer. In vitro-derived (IVM/IVF) cat embryos were used to evaluate in vitro development after controlled-rate cryopreservation
vs vitrification vs controls. Blastocyst development was similar in both groups of cryopreserved embryos (2226%), but it was lower (p<0.05) than that of fresh embryos (50%). After embryo transfer, four of eight recipients of vitrified embryos established pregnancies three of six (50%) and one of two (50%) that received embryos from in vivo- and in vitro-matured oocytes, respectively. Three male and two female kittens weighing from 51 to 124g (mean=88g) were delivered on days 6165 of gestation. In BFC, four intra-species embryo transfer procedures were carried out two recipients received 查看更多 fresh day 2 embryos (n=5,
8) and two recipients received embryos that had been cryopreserved on day 1 (n=6) or 2 (n=8). A 2year-old recipient of cryopreserved embryos established pregnancy and delivered two live male kittens. Subsequently, five cryopreserved BFC embryos were transferred to a domestic cat recipient. On day 29, the recipient was determined to be pregnant and delivered naturally a live, healthy female BFC kitten on day 66. In summary, in vivo survival of vitrified domestic cat embryos was shown by the births of kittens after transfer into recipients. Also, we demonstrated that sperm and embryo cryopreservation could be combined with intra- and inter-species embryo transfer and integrated into the array of assisted reproductive techniques used successfully for propagation of a rare and vulnerable felid species, the black-footed cat.”
“Background The cost-effectiveness of the optimal use of hospital-based acute myocardial infarction (AMI) treatments and their potential impact on coronary heart disease (CHD) mortality in China is not well known.