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Objective:To study the genetic profiles of phenylalanine hydroxylase (PAH) gene mutations in neonates with phenylketonuria (PKU) in Xinjiang.Methods:From January 2015 to December 2021,neonates born and genetically diagnosed with PKU in our region were retrospectively included. The genetic profiles of different ethnic groups were analyzed and compared with PKU patients from central, northwest and northern regions of China.Results:A total of 131 neonates with PKU were enrolled, including 82 Han, 25 Hui and 20 Uyghur patients, 4 cases of other ethnic groups. 46, 20 and 14 types of pathogenic variants were detected in each ethnic group with detection rates of 95.1% (156/164), 66.0% (33/50), and 60.0% (24/40), respectively. The variants were mainly missense mutations and located in exons 2, 3, 6,7 and 11. The most common loci in Hui patients were c.158G>A (18.2%), c.728G>A (18.2%) and c.898G>T (9.1%). The most common loci in Uyghur patients were c.158G>A (33.3%), c.355C>T (12.5%) and c.1068C>A (8.3%). c. 898G>T might be most unique in Hui patients and c.355C>T most unique in Uyghur patients in Xinjiang. A novel variant of PAH gene, c.828G>C (p.M276I) in exon 7 was identified. Compared with northern, central and northwestern regions of China, PKU patients in Xinjiang had significantly higher incidence of c.158G>A mutation and lower incidence of c.728G>A mutation ( P<0.05). Conclusions:Missense mutations of PAH gene are common in some regions of Xinjiang. The compositions of PAH gene variations are similar to northwest and northern China with significant differences in hotspots of mutations.
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Objective To evaluate the risk factors and sonographic findings of pregnancies complicated by placenta increta or placenta percreta. Methods Totally, 2219 cases were retrospectively analyzed from 20 tertiary hospitals in China from January 2011 to December 2015. The data were collected based on the original case records. All cases were divided into two groups, the placenta increta (PI) group (79.1％, 1755/2219) and the placenta percreta (PP) group (20.9％, 464/2219), according to the degree of placental implantation. The risk factors and sonographic findings of placenta increta or percreta were analyzed by uni-factor and logistic regression statistic methods. Results The risk factors associated with the degree of placental implantation were age, gravida, previous abortion or miscarriage, previous cesarean sections, and placenta previa (all P<0.05), especially, previous cesarean sections (χ2=157.961) and placenta previa (χ2=91.759). Sonographic findings could be used to predict the degree of placental invasion especially the boundaries between placenta and uterine serosa, the boundary between placenta and myometrium, the disruption of the placental-uterine wall interface and loss of the normal retroplacental hypoechoic zone(all P<0.01). Conclusions Previous cesarean sections and placenta previa are the main independent risk factors associated with the degree of placenta implantation. Ultrasound could be used to make a prenatal suggestive diagnosis of placenta accreta spectrum disorders.
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OBJECTIVE:To observe the therapeutic efficacy of active immunization combined with dydrogesterone in the treatment of recurrent abortion,and its effects on serum levels of leptin(LP)and adiponectin(ADPN). METHODS:Totally 103 patients with recurrent abortion from department of gyhecology,Jinan Third People's Hospital during Nov. 2015 to Nov. 2016 were selected as trial group,and then divided into trial group one(n＝51)and trial group two(n＝52)according to admission order. Other 100 normal pregnant women were taken as control group. Trial group one was given active immunization combined with dydrogesterone,including that lymphocytes from the patients'spouse were injected subcutaneously into the patient,every half a month,3 times of active immunization as a course of treatment,and was given Dydrogesterone tablet 10 mg after pregnancy,bid, until 3 months after the pregnancy. Trial group two was given Dydrogesterone tablet 10 mg,bid,until 3 months after the pregnancy. The serum levels of β-HCG,LP and ADPN were compared between trial group and control group at admission,the serum levels of β-HCG,LP,ADPN and pregnancy outcome(recurrent abortion,full-term pregnancy and successful delivery rate) was compared between 2 trial groups after treatment. RESULTS:At admission,the serum levels of β-HCG,LP and ADPN in trial group were significantly lower than control group. After treatment,the levels of β-HCG,LP and ADPN,successful delivery rate and full-term pregnancy rate in trial group one were significantly higher than trial group two, recurrent abortion rate was significantly lower than trial group two,with statistical significance(P＜0.05). No adverse reactions were observed in the study. CONCLUSIONS:The use of active immunization combined with dydrogesterone can significantly improve the serum levels of LP and ADPN as well as pregnancy outcome,with good safety.
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Objective:To explore the main characteristics of college students' entrepreneurial failure fear, and the mediating effect on the relationship between optimism and entrepreneurial intention among college students. Methods: Totally 427 college students were selected. Their optimism trait, entrepreneurial failure fear and entrepreneurial intention were accessed with the Optimism-pessimism Scale (OS), Failure Fear Scale (FFS) and Individual Entrepreneurial Intention Scale IEIS). Results: The average FFS score in college students was (2.8 ± 0.6). The scores of decrease of social value were higher in males than in females (P ＜0.01). The scores of decrease of self-esteem were higher in students from rural than those from cities (P ＜ 0.05). The total FFS scores were lower in freshmen than in sophomores, juniors and seniors (P ＜0.01). OS scores positively predicted IEIS scores (β =0.19, P ＜0.001), and FFS scores partially mediated the relationship between the scores of OS and IEIS (effect size = 0.11, 95％ CI:0.04-0.19). Conclusion: This study shows significant gender, birthplace and grade differences in college students' entrepreneurial failure fear. Entrepreneurial failure fear maybe partially mediate the relationship between optimism pessimism and entrepreneurial intention.
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Objective To investigate the prevalence of iron deficiency(ID)and iron deficiency anemia (IDA) in pregnant women in urban areas of China. Methods The study was a national cross-sectional survey conducted from September 19th, 2016 to November 20th, 2016. According to the classification of the National Bureau of Statistics, all survey sites were set up in 6 regions of the country. Pregnant women were continuously selected using multistage stratified sampling. A total of 12 403 pregnant women were collected and examined for serum ferritin and hemoglobin levels. Results The median serum ferritin level during pregnancy was 20.60 μg/L(11.78-36.98 μg/L), the hemoglobin level was(118±12)g/L. With the progress of pregnancy, the levels of serum ferritin and hemoglobin decreased gradually. The median serum ferritin levels in the first, second trimester and third trimester were 54.30 μg/L(34.48-94.01 μg/L), 28.60 μg/L(16.40-50.52 μg/L), and 16.70 μg/L(10.20-27.00 μg/L)respectively(P<0.01). The mean hemoglobin levels were(127 ± 10)g/L,(119 ± 11)g/L and(117 ± 11)g/L respectively(P<0.01). The prevalence of ID in urban pregnant women was 48.16%(5 973/12 403), and IDA prevalence was 13.87% (1 720/12 403). The prevalence of IDA in the first, second trimester and third trimester were 1.96% (20/1 019), 8.40%(293/3 487)and 17.82%(1 407/7 897), respectively(P<0.01). The prevalence of standardized ID and IDA were significantly different in various regions of China(P<0.01). The standardized prevalence of ID were relatively higher in East China and Northeast China, 57.37% and 53.41% respectively, while it was the lowest in Southwest China, 30.51%. The standardized prevalence of IDA in South Central, Northwest, and East China were relatively high, 21.30%, 16.97% and 17.53% respectively, and the standardized prevalence of IDA in Southwest China was the lowest, 5.44%,the differents in various regions were significant(all P<0.01). Conclusion The current phenomenon of ID and IDA in pregnant women is still very common,and nutrition and health care during pregnancy should be strengthened.
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Objective:To develop the Abusive Behavior Scale for Superiors under the Chinese context (ABSSC) and test its validity and reliability.Methods:Based on literature analysis and the open questionnaire survey in 32 employees,this study defined the construct of ASBSS,and compiled the preliminary questionnaire.A sample of 200 employees coming from companies was selected for item analysis.A sample of 445 employees was investigated with this questionnaire,223 of them were assessed for exploratory factor analysis and 222 of them were assessed for confirmatory factor analysis and internal consistency test with 2 week interval.Results:The ABSSC consisted of 11 items in 3 factors,which were neglect and slander,obstructionism and hard on subordinates.The 3 factors explained 55.45％ of the total variance.Furthermore,the result of CFA indicated that the model fitted the data with well constmct validity (RMSEA =0.06,GFI =0.94,NFI =0.92,CFI =0.96,IFI =0.96).The Cronbach α coefficient of the whole scale and its three facts were 0.87,0.79,0.78,and 0.76,respectively.Conclusion:It suggests that the Abusive Behavior Scale for superiors under the Chinese context (ABSSC) is reliable and valid enough to be applicable to measure superiors' abusive behavior under the background of Chinese culture.
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Objective:To investigate the relationship between narcissism and entrepreneurial intention and roles of achievement motive and risk aversion in college students.Methods:In this study,375 college students were selected from Henan University.Their narcissism,entrepreneurial intention,achievement motive and risk aversion were assessed with the Narcissism Scale,Entrepreneurial Intentions,The Achievement Motive Scale,and General Risk Aversion Scale.Results:The scores of overt narcissism positively predicted the scores of entrepreneurial intention (3 =0.37,P ＜ 0.001),the predictive effect of covert narcissism on entrepreneurial intention was not significant (β =-0.05,P ＞ 0.05).The scores of achievement motive partly mediated the relationship between the scores of overt narcissism and entrepreneurial intention (95％ CI:0.06-0.22),and this mediation effect was moderated by the scores of risk aversion (β =0.09,P ＜ 0.05).Only when the score of risk aversion was higher (above one standard deviation),achievement motive was a mediator between narcissism and entrepreneurial intention.When the score of risk aversion was lower,the mediate effect was not valid.Therefore,the moderated mediation model was confirmed.Conclusion:It suggest that the moderated mediation model is feasible,that is,achievement motive is a mediator between narcissism and entrepreneurial intention,but this mediation is moderated by risk aversion.
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Objective:Entrepreneurial failure refers to the process of entrepreneurial performance continuous decline until the business is bankrupt. The aim of this research is to analyze implicit stigma effect against entrepre-neurial failure in college students. Methods:Sixty-four college students in a natural class participated in this survey, 4 D values of the total tool of entrepreneurial failure implicit stigma and its three dimensions (including cognitive appraisal,emotional reaction,and behavior tendency)were assessed with the traditional implicit association test (IAT). Through independent sample t test,the differences between zero and 4 D values were analyzed. The differ-ences of four D values at gender and entrepreneurial experienceon were explored,the difference between reaction time of the compatibility task and incompatibility task was analyzed,and the reliability of the tool of implicit stigma effect against entrepreneurial failure was evaluated. Results:The 4 D values were all greater than zero. In 3 inde-pendent dimensions and total IATs,the automatic association between entrepreneurial failure and negative words was closer relative to positive words (P<0. 001 ),it showed that their implicit negative attitude against entrepre-neurial failure was significant. Split-halfreliability and internal consistency coefficient of the total tool of entrepre-neurial failure implicit stigma were respectively 0. 87 and 0. 82. Conclusion:In this study,the entrepreneurial failure implicit stigma effect may be significant in college students. These college studeuts have implicit negative cognition and emotion,and discrimination behavior tendency against entrepreneurial failure.
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In the present work we measured the concentration of Interleukin 1(IL-l) in the supernatant of cultured macrophage by the amount of ~3H-thymidine incoporated into T cells. The concentration of IL-1 was found to be marketly increased when macrophages were cultured with LPS (10?g/ml), SiO_2(100?g/ml), C.Parvum(1mg/mouse) Comparing the effects of these three stimulants on the incease of IL-1 from macrophage SiO_2 appeared to be the strongest one and C.P. and LPS were found to have cooperation for this increase in IL-1. Matrine,at the concentration of 100?g/ml, was found to antagonize the effect of LPS on theactivation of macrophage.
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T4 cells were isolated twice separately from peripheral blood of the same donor.After activation by lectin,the isolated cells were culturedwith the medium containing self-made IL-2 for a long period.The culturedcells were identified for OKT antigens by immuno-fluorescent technique onday 10 and 22 of the cultivation,and the appearance of both T4 and T8antigens on the same cell (double marker cell)could be detected in about60-80%of cultured cells.The double marker T cells decreased in numberand the percentage of single marker T cells,either T4 or T8 cells,increasedgradually along with the cultivation.The function of double marker T cellswere investigated and the suppressor activity of these cells on PWM indu-ced antibody production response by cooperation between B cells and fresh T4cells was found.These results suggest that human peripheral blood T4 andT8 cells are not terminaly differentiated cells,because T4 and T8 antigencan be coexpressed on the same cell during the earlier cultivation.Afterlong period of activation,T4 and T8 double marker cells may change intoeitherT4 or T8 cells.