Objective:To construct a VP8-mRNA vaccine using human rotavirus spike protein VP8 domain as the immunogen and analyze its immunogenicity in mice.Methods:The VP8-mRNA sequence was designed, optimized, and synthesized. The VP8 gene of rotavirus G1P[8] type was used to construct the plasmid pUC57-VP8-Kan-SapⅠ, which was then sequenced. The plasmid confirmed by sequencing was subjected to large-scale amplification and extraction, followed by linearization, in vitro transcription, and capping. The purified capped products were encapsulated with lipid nanoparticles using a microfluidic control apparatus. The encapsulated VP8-mRNA vaccine was administered intramuscularly to mice at 10, 15, and 20 μg. Serum samples were collected for antibody detection by ELISA. Cellular immune responses were detected by flow cytometry and ELISPOT. Statistical analysis was performed using one-way or two-way analysis of variance and Tukey-Kramer test. Results:The encapsulated VP8-mRNA vaccine was rounded and spherical, with a particle size of about 100 nm, a polymer dispersion index of 0.088, and an encapsulation rate of 92.3%. Two doses of VP8-mRNA vaccine immunization could induce a good immune response in mice. The level of IgG antibody induced after immunization in the 15 μg group was comparable to that of the 20 μg group, and there was no statistical difference ( P>0.05), but the antibody levels in the two groups were significantly higher than that in the 10 μg group ( P<0.000 1). VP8-mRNA vaccine could induce neutralizing antibodies against rotavirus G1 and G9 types. The highest level of neutralizing antibodies against rotavirus type G1 was observed in the 15 μg group, which was significantly higher than that in the 10 μg group ( P<0.05). All immunization groups exhibited good neutralizing ability against rotavirus G9 type. The results of ELISPOT showed that lymphocytes from mice in each vaccine group were able to secrete IFN-γ when stimulated with VP8 peptide. Flow cytometry showed that the proportions of CD8 + T cell subsets in the vaccine groups were higher than that in the control group. Conclusion:The VP8-mRNA vaccine has good immunogenicity in mice and can induce good humoral and T-cell immune responses.

Objective:To construct a VP8-mRNA vaccine using human rotavirus spike protein VP8 domain as the immunogen and analyze its immunogenicity in mice.Methods:The VP8-mRNA sequence was designed, optimized, and synthesized. The VP8 gene of rotavirus G1P[8] type was used to construct the plasmid pUC57-VP8-Kan-SapⅠ, which was then sequenced. The plasmid confirmed by sequencing was subjected to large-scale amplification and extraction, followed by linearization, in vitro transcription, and capping. The purified capped products were encapsulated with lipid nanoparticles using a microfluidic control apparatus. The encapsulated VP8-mRNA vaccine was administered intramuscularly to mice at 10, 15, and 20 μg. Serum samples were collected for antibody detection by ELISA. Cellular immune responses were detected by flow cytometry and ELISPOT. Statistical analysis was performed using one-way or two-way analysis of variance and Tukey-Kramer test. Results:The encapsulated VP8-mRNA vaccine was rounded and spherical, with a particle size of about 100 nm, a polymer dispersion index of 0.088, and an encapsulation rate of 92.3%. Two doses of VP8-mRNA vaccine immunization could induce a good immune response in mice. The level of IgG antibody induced after immunization in the 15 μg group was comparable to that of the 20 μg group, and there was no statistical difference ( P>0.05), but the antibody levels in the two groups were significantly higher than that in the 10 μg group ( P<0.000 1). VP8-mRNA vaccine could induce neutralizing antibodies against rotavirus G1 and G9 types. The highest level of neutralizing antibodies against rotavirus type G1 was observed in the 15 μg group, which was significantly higher than that in the 10 μg group ( P<0.05). All immunization groups exhibited good neutralizing ability against rotavirus G9 type. The results of ELISPOT showed that lymphocytes from mice in each vaccine group were able to secrete IFN-γ when stimulated with VP8 peptide. Flow cytometry showed that the proportions of CD8 + T cell subsets in the vaccine groups were higher than that in the control group. Conclusion:The VP8-mRNA vaccine has good immunogenicity in mice and can induce good humoral and T-cell immune responses.

Objective:To explore the genetic etiology of a patient with primary infertility and repeated failure of assisted reproductive technology.Methods:Peripheral blood samples of the patient and her husband were collected for the extraction of genomic DNA and clinical exome sequencing. Candidate variants were verified by Sanger sequencing.Results:The patient was found to harbor compound heterozygous variants of the PATL2 gene, namely c. 223-14_223-2del and c. 1369G>T (p.G457*). Sanger sequencing has verified that they were respectively inherited from her father and mother. The patient was diagnosed with oocyte maturation defect type 4. Conclusion:Oocyte maturation arrest due to mutations of the PATL2 gene can result in primary female infertility. Discovery of the novel c. 1369G>T (p.G457*) variant has expanded the spectrum of pathogenic variants of the PATL2 gene.

Objective To Summarize perioperative nursing for 20 patients with the hyperreflexia of neurogenic detrusor by injection of botulinum toxin A.Methods Mental states of patients were assessed by Huaxi Emotional Distress Index questionnaire and psychological support was given to these patients,patients were assisted and instructed to record the urine diary correctly,cautions for the use of botulinum toxin A was interpreted,drinking water and activities were guided,and adverse reactions,follow-up results at 6,12 weeks were observed.Life quality by Incontinence Quality of Life Questionnaire was observed,the times of urinary incontinence,maximum pressure volume of bladder,maximum pressure of detrusor and the effect of urinary incontinence were compared.Results The absolute value of evasion and restrictive behavior,psychological effects,social fear disorders were (38.5 ± 19.6),(38.8 ±22.5),(28.1 ±20.3),respectively,on admission,and (41.2 ±27.1),(43.7 ± 26.5),(33.5 ± 28.8),respectively,at 6 weeks after nursing,and were (40.9 ± 27.7),(39.6 ± 24.3),(36.3 ± 28.7),respectively,at 12 weeks after nursing.The evasion and restrictive behavior,social fear disorderswere improved at 6,12 weeks after nursing as compared to nursing before.Conclusion Perioperative care for patients with the hyperreflexia of neurogenic detrusor by injection ofbotulinum toxin A can not only improve therapeuticeffect,improve social status,but also improve patients'self-management ability and quality of life.

Objective To Summarize perioperative nursing for 20 patients with the hyperreflexia of neurogenic detrusor by injection of botulinum toxin A.Methods Mental states of patients were assessed by Huaxi Emotional Distress Index questionnaire and psychological support was given to these patients,patients were assisted and instructed to record the urine diary correctly,cautions for the use of botulinum toxin A was interpreted,drinking water and activities were guided,and adverse reactions,follow-up results at 6,12 weeks were observed.Life quality by Incontinence Quality of Life Questionnaire was observed,the times of urinary incontinence,maximum pressure volume of bladder,maximum pressure of detrusor and the effect of urinary incontinence were compared.Results The absolute value of evasion and restrictive behavior,psychological effects,social fear disorders were (38.5 ± 19.6),(38.8 ±22.5),(28.1 ±20.3),respectively,on admission,and (41.2 ±27.1),(43.7 ± 26.5),(33.5 ± 28.8),respectively,at 6 weeks after nursing,and were (40.9 ± 27.7),(39.6 ± 24.3),(36.3 ± 28.7),respectively,at 12 weeks after nursing.The evasion and restrictive behavior,social fear disorderswere improved at 6,12 weeks after nursing as compared to nursing before.Conclusion Perioperative care for patients with the hyperreflexia of neurogenic detrusor by injection ofbotulinum toxin A can not only improve therapeuticeffect,improve social status,but also improve patients'self-management ability and quality of life.

Objective To understand the rehabilitation of postoperative patients with breast diseases, and to find out the common problems and caring key points,in order to provide a reference for the continuous nursing for breast disease patients after the discharge.MethodsA total of 1583 patients who underwent surgical treatment in thyroid and breast surgical department in West China Hospital of Sichuan University from June 2015 to July 2016 were selected by purposive sampling method. The all patients were followed up on telephone at the time point of 1 month, 3 months, 6 months and 12 months after discharge. The follow-up was about patients' rehabilitation (wound, functional exercise, self-care ability and drainage), mental state, satisfaction with follow-up and so on.Results Female accounted for 1574 of the follow-up cases (99.4％). The average age of the patients was (47.20±11.97) years old. The proportion of malignant tumors was 74.6％. The average body mass index (BMI) was (22.66±2.5)kg/m2. The average surgery waiting days and the average hospitalization days were (4.12±2.40) and (8.54±3.40) respectively. The follow-up loss rate at 1 month, 3 months, 6 months and 12 months after discharge was 2.27％ (36/1583), 1.90％ (22/1158), 2.93％ (26/888) and 4.89％ (9/184) respectively. The differences of benign and malignant diseases between patients with different BMI and age were statistically significant (P<0.05).ConclusionsTelephone follow-up is a simple and effective way to understand the rehabilitation of patients, and is worthy of clinical use. Follow-up results suggests that caregivers should concern about postoperative wound healing, affected upper limb functional rehabilitation, and mental health in patients with breast diseases, so as to take effective measures to improve patients life quality according to actual problems.

Obiective To explore the effect of pulmanory surfactant on the incidence of bronchopulmonary dysplasia. Methods In a case control study, 25 newborns with NRDS were treated with Exosurf. At the same time, other 25 newbons with NRDS were served as control. The incidence of BPD in two groups was compared. Results The duration of mechanical ventilation and oxygen therapy was shortened in the group treated with PS (13 2?9) days vs (6?4) days, (21?9) days vs (9.3?6) days, respectively The incidence of BPD was decreased from 40% to 20%. Conclusion The duration of mechanical ventilation and oxygen therapy can be shortened in the newbons of NRDS treated with PS, but the decreasing of the incidence of BPD were not confirmed.