{L-End}Objective To explore the chain mediating effect of team psychological safety atmosphere and professional calling in the relationship between humble leadership and voice behavior. {L-End}Methods A total of 812 nurses from five medical institutions in Guangdong Province were selected as the research subjects using the convenience sampling method. The Team Psychological Safety Atmosphere Scale, the Professional Calling Scale, the Hospital Version of Humble Leadership Scale and the Voice Behavior Scale were used to investigate the perceived team psychological safety atmosphere and sense of professional calling, the perceived humble leadership style and voice behavior of the nurses. {L-End}Results The score of team psychological safety atmosphere, professional calling, humble leadership, and voice behavior of 812 nurses was (58.0±7.6), (44.6±8.0), (50.4±9.2) and (37.0±5.9), respectively, with the scoring rate of 72.5%, 74.3%, 80.0%, and 74.0%, respectively. Bootstrap analysis showed that humble leadership could positively influence voice behavior ［standardized effect value (β)=0.28, 95% confidence interval (CI) 0.20-0.35］. Humble leadership could influence voice behavior through the separate mediating effects of team psychological safety atmosphere (β=0.13, 95%CI 0.09-0.18), professional calling (β=0.07, 95%CI 0.04-0.11), and the chain mediating effect of team psychological safety atmosphere and professional calling(β=0.06, 95%CI 0.04-0.08). {L-End}Conclusion The voice behavior of clinical nurses is at a moderately high level. Humble leadership can directly influence voice behavior and can influence voice behavior through the mediating effects of team psychological safety atmosphere and professional calling. Nursing managers can inspire the work passion of clinical nurses by changing their own leadership style and creating a good atmosphere for voicing opinions.

OBJECTIVETo study the epidemiology of genotyping Yersinia pestis isolated in the fulminant epidemics of human plague in Qinghai province in 2004.

METHODSPrimer pairs targeting the twenty-three different identified regions (DFRs) were designed to detect the presence or deletion of each DFR in 13 strains of Yersinia pestis isolated from the fulminant epidemic of human plague in Qinghai province in 2004.

RESULTSThere were 4 genomovars, i.e. Genomovar 8, 10, 15 and 16 in the 13 strains of Yersinia pestis identified. The genomovar of all the strains of Yersinia pestis isolated from Nangqian county was Genomovar 10. Among the two strains of Yersinia pestis isolated from Wulan county, the genomovar of one strain was Genomovar 8 and the other was Genomovar 10. The genomovars of all the strains of Yersinia pestis isolated from Qilian, Qumalai and Chengduo county belonged to Genomovar 16.

CONCLUSIONIt was demonstrated that the genotyping of Yersinia pestis appeared to be a powerful tool for investigating human plague epidemics.

China ; epidemiology ; Disease Outbreaks ; Genotype ; Humans ; Molecular Epidemiology ; Plague ; epidemiology ; Yersinia pestis ; genetics ; isolation & purification

OBJECTIVETo study the distribution of genomovars and microevolution of Yersinia pestis in the Qinghai-Tibet Plateau.

METHODSPrimer pairs targeting the twenty-two different regions(DFRs) were designed for detecting the presence or deletion of each DFR in 297 strains isolated from the Qinghai-Tibet Plateau.

RESULTS9 genomovars, i. e. Genomovar 1, 5, 6, 7, 8, 10, 11, new type and Ype-ancestor were identified in the Marmota himalayana plague focus of the Qinghai-Tibet Plateau. Among these genomovars, genomovar 5,8 and 10 were dominant types. The total rate of the three genomovars was 80.6% (204/253) and the genomovars in different regions were different. All of 44 strains of Y. pestis in the Microtus fuscus plague focus of the Qinghai-Tibet Plateau belonged to genomovar 14.

CONCLUSIONThe distribution of genomovars of Y. pestis in the Qinghai-Tibet plateau had remarkable characteristics geographically. Based on the distribution of genomovars of Y. pestis, the routes of transmission and microevolution of Y. pestis were proposed.

Biological Evolution ; China ; Geography ; Humans ; Plague ; transmission ; Yersinia pestis ; genetics

OBJECTIVETo evaluate the computed tomography (CT) findings of peritoneal tuberculosis mimicking advanced ovarian carcinoma for better understanding of the CT manifestations and accurate preoperative diagnosis.

METHODSCT findings of 18 cases with tuberculous peritonitis clinically simulating advanced ovarian cancer but pathologically proved otherwise were retrospectively reviewed.

RESULTS1. Masses with solid and cystic structures were found in 6 cases and tumor-like flakes were found in 7 cases in the adnexal regions. The solid components and tumor-like flakes were moderately to markedly enhanced with dynamic CT scanning. 2. The peritoneum was smooth and slightly thickened in 10 cases; irregular thickening was seen in 4 cases, and patches of calcification in 3 cases. Thickened peritoneum with pronounced enhancement was noted in 7 cases. 3. Omentum with flake-like thickening was noted in 11 cases, coarse reticulate thickening in 2 cases and omental cakes in 2 cases. The margin of the thickened omentum with enhancement was ill-defined. 4. Nodular and stripe-like thickening of the mesentery was noted in 16 cases. 5. Ascites was present in all of the 18 cases, being encapsulated in 14 of them. 6. Lymphadenopathy was seen in 9 cases, all at located in the diaphragmatic levels. Enhancement of the lymph nodes was marked in 8 of the 8 patients examined. They appeared as ring-like (> 1 cm in diameter) or uniform (

CONCLUSIONCT examination combined with clinical manifestations helps differentiate tuberculous peritonitis from advanced ovarian cancer.

Adolescent ; Adult ; Aged ; Diagnosis, Differential ; Female ; Humans ; Hyperplasia ; Lymph Nodes ; pathology ; Middle Aged ; Ovarian Neoplasms ; diagnostic imaging ; pathology ; Peritonitis, Tuberculous ; diagnostic imaging ; pathology ; Tomography, X-Ray Computed

Objective To analyze the current situation and latent profiles of nurses'voice behavior in nurses,and explore the influencing factors of different types.Methods Through convenience sampling,812 nurses who worked in tertiary hospitals from 5 cities in Guangdong Province during April 2022 to June 2022 were recruited.The demographic questionnaire,the Voice Behavior Scale,the Humble Leadership Scale,and the Team Psychological Safety Climate Scale were used for investigation.Latent profile analysis was used to explore the latent profiles of nurses'voice behavior.The influencing factors of latent profiles were identified by multivariate Logistic regression.Results The total score of the voice behavior in 812 nurses is(37.04±5.88).Voice behaviors in nurses is divided into 3 latent classes,namely"conservation group"(27.83％),"balanced-risky group"(61.95％),and"the challenge group"(10.22％).The influencing factors include recruitment type,whether to assist in department management,humble leadership,team psychological safety climate(all P＜0.05).Conclusion The level of nurses'voice behavior is upper medium with heterogeneity,which can be divided into 3 latent profiles.Nurses managers should focus on nurses with conservation group and balanced-risky group and conduct early targeted prevention and care according to characteristics and influencing factors of different latent profile.

Objective To observe the expressions of multidrug resistance-associated protein (MRP) 1 in the hippocampus of the rat models with chronic epilepsy,and to explore whether antiepileptic drug oxcarbazepine(OXC) affects the expression of MRP1.Methods One hundred rats of 14 days old were randomly divided into model group(n =52) and the control group(n =48).The model group received intraperitoneal injection of kainic acid(KA) 1 mg/kg (0.5 g/L) to induce seizures,and the control group rats were injected the same dose of 9 g/L chloride.According to Lado standard classification of seizures,the young rats whose seizure degree was beyond 5 and became status epilepticus after intraperitoneal injection used as successful seizure models if they caught the spontaneous seizures after 2 weeks.When spontaneous seizures were developed,48 surviving KA rats were divided into KA group and KA + OXC group.Rats in the control group were divided into NS group and NS + OXC group.After spontaneous recurrent seizures,the treatment groups began to take drugs.Each group started to be sacrificed from the beginning of drug perfusion at different times and they were divided into the 4th week group,the 6th week group and the 8th week group.The expression of MRP1 in hippocampus(CA3 area) was detected by immunohistochemistry methods.Results 1.Epileptic performance:all rats injected with NS had no epileptic performance.In the chronic epilepsy,Ⅰ-Ⅴ Racine grade of spontaneous recurrent seizures were found in all rats with KA.The rats in KA group had higher epilepsy seizure frequency than those in KA + OXC group (P ＜ 0.05).2.The rats in NS group and NS + OXC group had fewer MRP1 positive cells,and there was no significant difference at all time points between NS group and NS + OXC group (P ＞ 0.05).The trend of expression in KA group and KA + OXC group gradually increased.The MRP1 positive cells in KA + OXC group compared with those in the KA group was significantly different in the 8th week(P ＜0.05),while there was no significant difference in the 4th week and the 6th week(all P ＞0.05).And there was a significant difference in the positive cells in KA group compared with those of KA group(P ＜0.05).The expression of MRP1 positive cells in KA + OXC group increased significantly compared with those in NA + OXC group(all P ＜ 0.05).Conclusions MRP1 plays an important role in resistance mechanisms of refractory epilepsy,while the expression of MRP1 can be induced by using OXC in a long term.

Objective To evaluate the clinical value of HPV genotyping in diagnosis of cervical lesions.Methods Totally 1715 patients seen in Department of Obstetrics and Gynecology,Peking University First Hospital from January 2010 to December 2012 were chosen to be evaluated.All the patients experienced cervical Liquid-based cytology test,HPV genotyping and multiple punch biopsy during colposcopy and they were confirmed of cervical intraepithelial neoplasia (CIN) through histopathological examination.The clinical efficacy of HPV genotyping was evaluated.Results HPV 16,58,52,33 and 31 were the first five types detected in all of the 1715 patients.The first five types detected in the patients with CIN2 + (including CIN2/CIN3/adenocarcinoma in situ/cervical cancer) were HPV 16,58,33,52 and 31.Logistic regression analysis showed that in the CIN2 + patients who were negative for intraepithelial lesion or malignancy (NILM),those with positive HPV 16,33 and 18 had higher risk of CIN2 +,with the regression coefficient OR 5.031 (P =0.000),2.375 (P =0.000) and 1.598 (P =0.027).The cervical liquid-based cytology showed that there was a higher risk of CIN2 + for atypical squamous cells of undetermined significance (ASCUS) with positive HPV 16 and 18,and the regression coefficients OR were 5.139 (P =0.000) and 2.096 (P =0.025),respectively ; and the low-grade squamous intraepithelial lesion (LSIL) with positive HPV 16,33 and 52 had higher risk of CIN2 +,the regression coefficients OR were 5.774(P =0.000),3.368(P =0.000) and 1.747(P =0.034).Conclusion HPV genotyping is significantly useful for cervical screening.It is an important parameter for directing the clinical treatment in ASCUS and LSIL patients with negative cytology results,especially HPV 16 positive patients need to be further evaluated.

Objective To observe the efficacy of pinaverium bromide alone or in combination with amitriptyline in the treatment of diarrhea type irritable bowel syndrome ( IBS-D).Methods One hundred and twenty-five patients with IBS -D,aged 18 -65 years,in our hospital from June 2013 to June 2016 were randomly divided into control group (63 cases,treated with pinaverium bromide 50 mg,tid) and treatment group (62 cases, on the basis of control group ,treated with amitriptyline 25 mg,qd).The total effective rate,the stool property and state,and the quality of life were assessed by IBS -bowel symptom severity scale (IBS-BSS),IBS-defecation state questionnaire ( IBS-DSQ) and the IBS-quality of life questionnaire (IBS-QOL) before and 4 weeks after the treatment respectively.Results After treatment,the IBS-BSS efficacy of the control group and the treatment group were 61.90%(39 cases/63 cases) and 85.48%(53 cases/62 cases), respectively, and the di-fference were statistically significant ( P<0.01 ).Total IBS-BSS scores of the control group and the treatment group were (166.32 ±72.75 ), (112.98 ±81.84 )point,respectively;which was significantly decreased in the treatment group (P<0.01).The IBS-DSQ effective rates of the control group and the treatment group were 71.43%(45 cases/63 cases) and 91.94%(57 cases/62 cases),respectively;which was significantly increased in the treatment group than that in the control group (P<0.01).Moreover,the total IBS-QOL integrals were statistically increased in the two groups , with the treatment group more pronounced.Conclusion Pinaverium bromide in combination with amitriptyline could effectively relieve bowel symptoms,improve the stool property and the defecation frequency and thus improve their quality of life ,which has a certain clinical application value .

Objective To evaluate the protective effect of Yersinia pestis capsular antigen F1 and recombinant rV270 on mice after immunization with them.Methods According to body weight,40 female Balb/c mice aged 6 to 8 weeks were randomly divided into four experimental groups(Fl-10 μg + aluminum adjuvant,F1-20 μg + aluminum adjuvant,rV-10 μg + aluminum adjuvant,and rV-20 μg + aluminum adjuvant) and a control group,8 in each group.Mice in experimental groups were immunized with the natural antigen F1 and recombinant antigen rV270 adsorbed to 25％ aluminum adjuvant and the control group was immunized with the same amount of aluminum adjuvant.Each mouse was immunized at the hind leg muscle with 100 ml immunizing agent,then a booster immunization was done once on the 21st day after the first immunization.The blood of all mice was collected on the 8th week after the first immunization,serum antibody titers were detected by ELISA and the data of antibody titers were analyzed by t test for comparison between groups.At the same time the mice were injected subcutaneously with 2000-fold LD50 of Yersinia pestis virulent strain 141,after 14 days,the protective effect of immunization was analyzed.Results The control group did not produce antibody.Antibody geometric mean titers (GMT) of the F1-10 mg + aluminum adjuvant and F1-20 mg + aluminum adjuvant groups were 1 ∶ 30443.9,and 1 ∶21527.8,respectively,and compared between the two groups,the difference was not statistically significant (t =1.1282,P ＞ 0.05).The GMTs of the rV-10 μg + aluminum adjuvant and rV-20 μg + aluminum adjuvant groups were 1 ∶ 13957.3 and 1 ∶18100.9,respectively,and compared between the two groups,the difference was not statistically significant(t =0.9408,P ＞ 0.05 ).After subcutaneous injection with Yersinia pestis virulent strain 141,all mice died in the control group but all survived in the experimental group.Conclusion The immune activity of natural antigen F1 and recombinant rV270 is high,which can be used as the main component of subunit vaccine in the plague subunit vaccine study.

Abstract: Objective　To investigate the clustered regularly interspaced short palindromic repeats (CRISPR) genotypes and regional distribution of Yersinia pestis strains in the natural plague foci of Hainan Tibetan Autonomous Prefecture of Qinghai Province (referred to as "Hainan prefecture") and provide a scientific basis for plague prevention and control in this area. Methods　A total of 36 representative Yersinia pestis strains, which were isolated from different host animals and insect vectors from 1954 to 2009 in Hainan Prefecture, were selected as experimental subjects. The DNAs were extracted using the traditional sodium dodecyl sulfate decomposition and phenol-chloroform method. Three pairs of CRISPR primers (YPa, Ypb, YPc) were used for PCR amplification, sequencing and analysis of the DNA of the tested strains, respectively, as a means to identify the CRISPR genotypes of Yersinia pestis in Hainan Prefecture. Results　A total of 17 spacers were observed among 36 strains of Yersinia pestis, including 9 of YPa, 5 of YPb and 3 of YPc. All strains were divided into 5 CRISPR gene clusters (Cb2, Cb4 ', Ca7, Ca7 ', Ca35 ') and 6 genotypes (G1, G9, G22, G22-A1 ', G26-A1 ', G26-A1 'A4 -). The G26-a1 ' was the main genotype, which was distributed in Gonghe, Guide and Xinghai County, and the G22 is the second type, which was distributed in Gonghe and Guide County. Conclusions　The genetic polymorphism of CRISPR loci of Yersinia pestis strains in Hainan was high, and the regional distribution characteristics of Yersinia pestis strains with different genotypes were significant.