Objective:To investigate the value of quantitative parameters of amide proton transfer-weighted (APTw) imaging and dynamic contrast-enhanced (DCE)-MRI for preoperative assessment of human epidermal growth factor receptor 2 (Her-2) gene expression in endometrial cancer (EC).Methods:This research conducted a diagnostic pilot study involving 68 patients with pathologically confirmed EC at the First Hospital of Dalian Medical University from August 2019 to August 2023. Patients were categorized into Her-2-positive group (33 cases) and Her-2-negative group (35 cases) based on postoperative Her-2 gene expression results. Utilizing the APTw and DCE-MRI sequences, quantitative parameters including the asymmetric magnetization transfer ratio (MTR asym) for APTw and the volumetric transfer constant (K trans), plasma volume fraction (V p), extracellular mesenchymal space (V e), and rate constant (K ep) for DCE-MRI were acquired for the lesion site. Statistical differences in the values of each quantitative parameter between the two groups were evaluated using two independent sample t test or Mann-Whitney U test. The study incorporated quantitative parameters and clinicopathological data of patients to identify independent predictors of EC Her-2 gene expression through logistic regression analysis. A diagnostic model was developed using binary logistic regression analysis. The effectiveness of the parameters and diagnostic model was evaluated using receiver operating characteristic curves. DeLong test was used to compare the differences between the areas under the curves (AUC). Results:The study found statistically significant differences in MTR asym, K trans, and V e between the Her-2-positive group and the Her-2-negative group ( Z=2.55, P=0.011; t=-2.03, P=0.047; t=-2.13, P=0.037). However, the differences in V p and K ep were not statistically significant ( Z=0.58, P=0.560; Z=0.19, P=0.849). MTR asym emerged as a significant independent predictor of Her-2 gene expression in EC ( OR=1.016, 95% CI 1.003-1.030, P=0.014). Incorporating MTR asym, K trans, and V e, the diagnostic model yielded an AUC (95% CI) of 0.745 (0.625-0.864). The AUC (95% CI) for MTR asym, K trans, and V e alone were 0.680 (0.551-0.808), 0.623 (0.485-0.760), and 0.656 (0.523-0.789) respectively. The differences in AUC between the diagnostic model and individual predictors MTR asym, K trans, and V e were not found to be statistically significant ( Z=1.40, 1.92, 1.37, P=0.163, 0.055, 0.171). Conclusion:The quantitative parameters of APTw and DCE-MRI sequences can preoperatively assess EC Her-2 gene expression from a different perspective, with MTR asym potentially serving as a valuable independent predictor.

Objective:To investigate the current situation of general practitioners' occupational pressure in Heilongjiang Province, and explore its relationship with professional identity and perceived organizational support. It aims to provide references for the construction of general practitioners and the development of general medical education.Methods:The general situation questionnaire, perceived organizational support scale, occupational pressure scale, and professional identity scale were applied through network and site surveys for collecting data. A total of 288 questionnaires were collected with 263 valid questionnaires (91.3%). Pearson correction analysis and bootstrap analysis were performed for data analysis.Results:The average score of occupational pressure among general practitioners was (115.95±22.40), and the results of Pearson correction analysis showed that perceived organizational support was negatively correlated with occupational pressure ( r=-0.413, P<0.01) and positive correlation with professional identity ( r=0.587, P<0.01). There were also significant negative correlations between professional identity and occupational pressure ( r=-0.442, P<0.01). Moreover, the mediating effect showed that professional identity had a certain mediating effect on the relationship between perceived organizational support and occupational pressure (LLCI=-0.2039, ULCI=-0.0760, P<0.05). Conclusion:General practitioners' occupational pressure was at a high level, which can be reduced through improving the perceived organizational support and professional identity.

Cystic echinococcosis (CE) in sheep is a hazardous zoonotic parasitic disease that is caused by Echinococcus granulosus (Eg). At present, serological test is an important diagnostic method for Eg infection in domestic animals. Here, a fusion protein Eg mefAg-1 harboring 8 dominant B-cell epitopes of Eg such as antigen B, tetraspanin 1, tetraspanin 6, reticulon and Eg95 was produced in E. coli and evaluated for CE in sheep by indirect ELISA. Eg mefAg-1 showed in ELISA a high sensitivity (93.41%) and specificity (99.31%), with a coincidence rate of 97.02%. Overall, it is suggested that the Eg mefAg-1 could be a potential antigen candidate for CE serodiagnosis in sheep.
Animals, Domestic ; Echinococcosis ; Echinococcus granulosus ; Enzyme-Linked Immunosorbent Assay ; Epitopes, B-Lymphocyte ; Methods ; Parasitic Diseases ; Sensitivity and Specificity ; Serologic Tests ; Sheep

Objective    To evaluate the effect of fast track surgery (FTS) after esophageal cancer surgery. Methods    The randomized controlled trial (RCT) and observational studies about FTS for esophageal cancer in PubMed、EMbase、The Cochrane Library、Web of Science、CBM、CNKI and WanFang databases were searched up to May 2017. Then the studies were screened according to the inclusion and exclusion criteria by two researchers. Data were analyzed by Stata12.0 software. Results     Totally 13 RCTs and 5 observational studies with 2 447 patients were eligible for analysis. Compared with the control group, incidence of postoperative complications (OR=0.53, 95%CI 0.40 to 0.71, P<0.05) significantly reduced in the FTS group, but there was no significant difference between the two groups in readmission rate (OR=1.21, 95%CI 0.83 to 1.76, P=0.313) and 30 d mortality rate (OR=0.72, 95%CI 0.43 to 1.20, P=0.207). Conclusion    FTS can safely and effectively accelerate the recovery of patients with esophageal cancer and it owns important clinical values.

Objective: To prepare peptide minotope-based recombinant diagnostic antigen of Epstein-Barr virus (EBV) infection and evaluate its antigenicity preliminarily. Methods: With Trx at the N-terminal and His tag at the C-terminal, the peptide minotope of EBV (GP125, F1, A2, A3C2) was expressed in Escherichia coli and purified by affinity and anion exchange chromatography (designated 'H58’); based on antigenicity of H58 identified by Western blotting (WB), we constructed and evaluated a novel early diagnostic ELISA for EBV infection. Results: The soluble H58 protein with high concentration (2.8 mg/ml) and purity (99.01) was obtained; WB analysis found that there was an obvious band (28 ×10³) on the NC membrane, using H58 anti-Trx monoclonal antibody or acute-phase sera of EBV infection as the first antibody. With the novel ELISA, 50 positive sera of EBV infection and 50 negative sera were detected, displaying that the grouping of OD value of positive serum (95%CI: 1.233-1.489) and negative serum (95%CI: 0.113-0.159) was different (P<0.05) with the sensitivity 98.0%, specificity 96.0% and kappa value 0.940. Conclusions By E. coli expression and affinity and ion exchange chromatography purification, the peptide minotope-based recombinant diagnostic antigen of EBV infection was obtained with excellent antigenicity, which could be applied for serological detection of EBV infection.

Allergic rhinitis (AR) is a global health problem that causes major illnesses and disabilities worldwide. Epidemiologic studies have demonstrated that the prevalence of AR has increased progressively over the last few decades in more developed countries and currently affects up to 40% of the population worldwide. Likewise, a rising trend of AR has also been observed over the last 2–3 decades in developing countries including China, with the prevalence of AR varying widely in these countries. A survey of self-reported AR over a 6-year period in the general Chinese adult population reported that the standardized prevalence of adult AR increased from 11.1% in 2005 to 17.6% in 2011. An increasing number of original articles and imporclinical trials on the epidemiology, pathophysiologic mechanisms, diagnosis, management and comorbidities of AR in Chinese subjects have been published in international peer-reviewed journals over the past 2 decades, and substantially added to our understanding of this disease as a global problem. Although guidelines for the diagnosis and treatment of AR in Chinese subjects have also been published, they have not been translated into English and therefore not generally accessible for reference to non-Chinese speaking international medical communities. Moreover, methods for the diagnosis and treatment of AR in China have not been standardized entirely and some patients are still treated according to regional preferences. Thus, the present guidelines have been developed by the Chinese Society of Allergy to be accessible to both national and international medical communities involved in the management of AR patients. These guidelines have been prepared in line with existing international guidelines to provide evidence-based recommendations for the diagnosis and management of AR in China.
Adult ; Asian Continental Ancestry Group* ; China ; Comorbidity ; Developed Countries ; Developing Countries ; Diagnosis* ; Epidemiologic Studies ; Epidemiology ; Global Health ; Humans ; Hypersensitivity* ; Prevalence ; Rhinitis, Allergic*

Objective To explore the risk factors ,prevention and treatment of the occurrence of perirenal hematoma after flexible lithotripsy. Methods We retrospectively analyzed the clinical data of 18 patients with symptomatic perirenal hematoma from 1259 who had undergone ureteral flexible lithotripsy in our hospital during the period of April 2007 to April 2016. Of the 18 patients,7 were complicated with diabetes mellitus,11 had urinary tract infection;15 were female,and 3 were male. Results Perirenal hematoma was confirmed by B ultrasound and CT,which situated on the Posterolateral side of the kidney in 8 patients,and on the lower pole and abdominal side in 10. Hematoma depth was 2.6-15.3 cm(average was 5.2 cm). The hematoma?related symptoms gradually disappeared in 11 patients 7 to 14 days after they received conservative treatment. 5 recovered gradually 15 days after undergoing hematoma puncture and drainage ,and 2 recovered 36 days after receiving open surgery for removal of hematoma. Conclusions Female,diabetes,urinary tract infection,bigger stone size,prolonged surgical duration,and infected stones were the risk factors for perinephric hematoma related to ureteroscopic lithotripsy. Full preoperative preparation ,effective anti?infection ,intraoperative improvement of calculus?breaking skills and use of large caliber semirigid through sheath,low pressure perfusion,shorter surgical duration,and staging surgery are effective ways to reduce the occurrence of perirenal hematoma.

Objective To investigate the adjustment and value of lymphocyte G protein-coupled receptor kinase-2 (GRK2) protein levels in patients with acute coronary syndrome(ACS). Methods Forty-two patients with stable angina pectoris (SAP), 44 patients with unstable angina pectoris (UAP), 43 patients with acute myocardial infarction (AMI), and 46 patients with normal coronary angiography (NCA) in hospital were enrolled in this study. Lymphocyte GRK2 protein levels were analyzed by Western blot in 24 h after admitted to hospital. Heart rate variability (HRV) analysis was performed based on 24 h Holter electrocardiogram (ECG) monitoring. Cardiac functions were measured using ultrasonic cardiogram. The results were compared and the relationship between GRK2 protein levels and HRV, cardiac functions index was analyzed. Results The level of lymphocyte GRK2 in AMI group, UAP group, SAP group and NCA group was (209.8 ± 63.9)%, (165.6 ± 60.2)%, (131.7 ± 51.8)% and (125.3 ± 50.6)%. The levels of lymphocyte GRK2 in AMI group and UAP group was significantly higher than that in SAP group and NCA group .Moreover, the level of GRK2 was the highest in AMI group, and there were significant differences (P<0.01). The level of lymphocyte GRK2 had negative correlation with high frequency(HF), low frequency(LF), LF/HF, standard deviation NN interval (SDNN), standard deviation of the average normal RR interval for 5-minute segments (SDNNI) and left ventricular ejection fraction (LVEF) (r =-0.52,-0.47,-0.53,-0.56,-0.49,-0.51, P < 0.01). Conclusions The rise of lymphocyte GRK2 protein levels is significantly associated with increased sympathetic nerve excitability and deterioration of cardiac function.

Objective To investigate the effect of midazolam combined with fentanyl as adjuvant therapy on inflammatory factors and biochemical indexes in children with serious hand-foot-mouth disease with mechanical ventilation .Methods One hundred and thirty children with serious hand-foot-mouth disease treated with mechanical ventilation were selected at Maternal and Child Health Care Hospital from January 2010 to January 2014 . The patients were divided into two groups according to the treatment regimen :58 cases treated with midazolam for sedation and analgesia as control group and 72 cases treated with midazolam combined with fentanyl as observation group . Inflammatory factors (interleukin-6 , interferon-γ ,high-sensitivity C-reactive protein and tumor necrosis factor-α) and biochemical indices (albumin ,alanine transaminase [ALT] ,aspartate transaminase [AST] ,alkaline phosphatase ,glutamate transpeptidase [γ-GT] and fasting blood glucose) before drug exposure and on withdrawal were compared between two groups .Adverse reactions were analyzed in the two groups .Continuous variables were compared using two-sample t-test , while categorical variables were compared using chi-square test . Results Interleukin-6 ,interferon-γ, high sensitive C reactive protein and tumor necrosis factor-α on withdrawal decreased significantly in both groups than those before drug exposure (all P< 0 .05) .All observation indices on drug withdrawal in observation group were significantly lower than control group (all P< 0 .05) .Levels of albumin ,ALT ,AST ,alkaline phosphatase and γ-GT were not significantly different between two time points in both groups (all P>0 .05) .However ,in observation group ,fasting blood glucose level decreased significantly on drug withdrawal compared with that before drug exposure ([5 .17 ± 0 .28] vs [10 .31 ± 1 .39] mmol/L ,t=46 .237 ,P=0 .000) ,and that was also lower than control group ([5 .17 ± 0 .28] vs [5 .85 ± 0 .34] mmol/L ,t=4 .372 ,P=0 .000) .Incidence of adverse reactions in observation group was significantly lower than control group (15 .3% vs 32 .8% ,χ2=4 .707 ,P=0 .030) . Conclusions Midazolam combined with fentanyl as adjuvant therapy is helpful to improve blood glucose , stabilize biochemical indices and reduce inflammation factor secretions in children with serious hand-foot-mouth disease with mechanical ventilation .This therapy is safe and worthy of clinical use .

Objective To investigate the epidemiological and clinical characteristics and prognosis of 31 children with hand foot and mouth disease(HFMD) complicated with acute flaccid paralysis(AFP).Methods Thirty-one HFMD children complicated with AFP served as study objective,who were admitted to Tangshan Maternity and Children Health Hospital from Jun 2011 to Dec 2014.The clinical manifestations and follow-up outcomes of 31 children with HFMD followed by AFP were retrospectively reviewed.Results Participants in this study consisted of 31 children(16 males,15 females,age from 3 months to 9 years) who met the criteria for HFMD with AFP.Among the 31 cases,27(87.1％)cases were less than 3 years old and 29(93.5％) cases were from countryside.Eleven cases (35.5％)were infected by enterovirus 71,1 case (3.2％) was infected with coxsackieviruses A16 and 19 cases(61.3％) were infected by other enteroviruses.AFP developed(7.1 ±2.9) days after the onset of fever and progressed to maximum severity within 1-2 days.All of the cases presented with fever and skin rash,38.7％ cases presented with limbs tremor and 87.1％ cases presented with startle and skip.Besides AFP of limbs, 100％ cases complicated with encephalitis.Thirty-one cases showed poliomyelitis-like syndrome(20 cases with one flaccid limb,5 cases with lower limbs,4 cases with upper limbs and 2 cases with left hemiplegia).In these cases, the muscle power varied from level 0 to level 4.The muscle strengthen and muscle tone in 21 patients were recovered within 2 weeks,and the other cases showed recovery 2 to 3 weeks later.After four weeks, the muscle strengthen in 19 cases recovered to 5 level(10 cases with single lower limb,5 cases with single upper limb,3 cases with two lower limbs and 1 case with two upper limbs).Conclusion HFMD complicated with AFP most commonly occurs in children aged less than 3 years old.The majority of cases were from countryside.Enterovirus 71 is still relatively common pathogen.All the 31 cases complicated with encephalitis.Cases clinically presented one flaccid limb, lower limbs, upper limbs and hemiplegia.AFP may be to some degree reversible in HFMD cases.In most cases described here, paralysis occurred in a single lower extremity and recovered more rapidly than those with two fimbs affected or with single upper extremity impairment.