To investigate the influences of sperm quality on the zygotes and embryos development, as the role of the paternal factor in early human embryogenesis is gaining more attention because of the application of techniques such as intracytoplasmic sperm injection (ICSI) for the treatment of men infertility. 136 infertility couples with men factors (Group I ) were included from May 2002 to January 2001. One hundred and seventy-two infertility couples with tube factors (Group II) served as controls. The sperm parameters, gemmates and embryos quality, implantation rate and pregnant rate in both groups were analyzed. It was found that there was no significant differences in the number of oocytes retrieved, the fertilization rate and number of embryos transferred between two groups. Sperm concentration, percentage of motile sperm and percentage of sperm with normal morphology were significantly lower in group I than in group II (P < 0.01). The proportion of good quality zygotes and good quality embryos were significantly lower in the male infertility group than in the tubal disease group (P < 0.05). Implantation rate and pregnancy rate were similar in two groups. It was concluded that spermatozoa is involved in the embryo quality, even in the early stages of development, which limited the treatment potency of IVF procedure.
Embryo Transfer ; Embryonic Development ; Fertilization in Vitro ; Infertility, Male ; Sperm Count ; Sperm Injections, Intracytoplasmic ; Sperm Motility/*physiology ; *Spermatozoa/cytology ; *Spermatozoa/physiology

Objective:To investigate the best compatibility plan for nitroprusside sodium for injection. Methods: An L16 (43 × 26 ) orthogonal design was used with four factors:temperature, solvent, solvent volume and time. The content of sodium nitroprusside was detected by HPLC, the insoluble particles were observed by a GWF-5J type particle analyzer, pH was detected by a PHS-2C preci-sion acidity meter, and a comprehensive scoring method was used to optimize the compatibility plan. Results:The optimized compati-bility plan was as follows:50mg sodium nitroprusside was dissolved in 250ml sodium chloride injections, avoiding light and used up in 26h. Conclusion:The plan provides scientific basis for the clinical medication.

Objective:To evaluate the compatible stability of sodium nitroprusside for injection ( SNP) in two kinds of solutions (5% glucose and sodium chloride injections) . Methods:A, B, C and D solution of SNP was respectively prepared according to the concentration of clinical use. The stability of SNP solution was studied in different environment with different storing time, and the as-sessment indices included the appearance, insoluble particles, pH value, ultraviolet-visible absorption spectrum and SNP content. Re-sults:The SNP solutions in 5% glucose and sodium chloride injections were stable in 26 hours in photophobic condition at 20℃ and 35℃. Under an incandescent lamp with or without lightproof, the solutions were very unstable. Conclusion:Both sodium chloride and 5% glucose injections can be used as the solvent for SNP with 26h stability. SNP injections prepared and used in clinics should be pre-served away from light to ensure the safety and effectiveness.

Objective To study the stability of sodium nitroprusside for injection in 5% glucose injection and 0 .9%sodium chloride injection ,and provide reference for clinical rational drug use .Methods The content of sodium nitroprusside for injection in different dissolvants(5% glueose ,sodium chloride injection) within 26 h was determined by HPLC .The change of micro particle was measured by light blockage method in accordance with China pharmacopeia(2010 edition) ,and the appearance and UV visible absorption spectroscopy and pH ,the osmotic pressure of the mixtures were observed as well .Results The changes in appearnace ,UV visible absorption spectroscopy ,pH value ,content and microparticle were not significant .Conclusion Sodium nitroprusside for injection were stable within 26 h after mixing with different dissolvants (5% glueose ,sodium chloride injection) .

To investigate the influences of sperm quality on the zygotes and embryos development,as the role of the paternal factor in early human embryogenesis is gaining more attention because of the application of techniques such as intracytoplasmic sperm injection (ICSI) for the treatment of men infertility, 136 infertility couples with men factors (Group Ⅰ ) were included from May 2002 to January 2004. One hundred and seventy two infertility couples with tube factors (Group Ⅱ ) served as controls. The sperm parameters, gemmates and embryos quality, implantation rate and pregnant rate in both groups were analyzed. It was found that there was no significant differences in the number of oocytes retrieved, the fertilization rate and number of embryos transferred between two groups. Sperm concentration, percentage of motile sperm and percentage of sperm with normal morphology were significantly lower in group Ⅰ than in group Ⅱ (P＜0.01). The proportion of good quality zygotes and good quality embryos were significantly lower in the male infertility group than in the tubal disease group (P＜0.05). Implantation rate and pregnancy rate were similar in two groups. It was concluded that spermatozoa is involved in the embryo quality, even in the early stages of development, which limited the treatment potency of IVF procedure.

Recently, a novel atypical porcine pestivirus (APPV) in pig was reported. In this study, two APPV strains, APPV-China/GZ01/2016 (GZ01) and APPV-China/GD-SD/2016 (GD-SD), were identified in two newborn piglet herds with congenital tremor from China. The open reading frame of the two strains shared an 83.5% nucleotide identity. Phylogenetically, the APPV strains were placed into two groups: GZ01 belonged to group I and GD-SD belonged to group II. A high viral load was detected in the cerebellum (quantification cycles < 26). Further studies should be carried out to thoroughly elucidate the development of congenital tremors caused by APPV.
Cerebellum ; China ; Genome ; Humans ; Infant, Newborn ; Open Reading Frames ; Pestivirus ; Tremor ; Viral Load

MicroRNAs (miRNAs) are endogenously expressed small, non-coding transcripts that regulate protein expression. Substantial evidences suggest that miRNAs are enriched in central nervous system, where they are hypothesized to play pivotal roles during neural development. In the present study, we analyzed miRNAs expression in mice cerebral cortex and hippocampus at different developmental stages and found miR-29a increased dramatically at postnatal stages. In addition, we provided strong evidences that miR-29a is enriched in mature neurons both in vitro and in vivo. Further investigation demonstrated that the activation of glutamate receptors induced endogenous miR-29a level in primary neurons. Moreover, we showed that miR-29a directly regulated its target protein Doublecortin (DCX) expression, which further modulated axon branching in primary culture. Together, our results suggested that miR-29a play an important role in neuronal development of mice cerebrum.
Animals ; Axons ; metabolism ; physiology ; Hippocampus ; growth & development ; metabolism ; Mice ; MicroRNAs ; genetics ; metabolism ; Microtubule-Associated Proteins ; genetics ; Neurogenesis ; Neurons ; metabolism ; Neuropeptides ; genetics ; Primary Cell Culture