Abstract: Objective　To study the characteristics and diagnostic efficacy of Rose-Bengal plate agglutination test (RBPT), standard-tube agglutination test (SAT) and enzyme-linked immunosorbent assay (ELISA) in the diagnosis of brucellosis. Methods　A total of 489 suspected brucellosis patients with complete records, who admitted to Xing'anmeng People's Hospital from March 2020 to May 2021, were selected as the subjects. The diagnostic value of SAT, RBPT and ELISA for brucellosis was analyzed with exposure history + clinical symptoms + serological test/brucellosis isolation and culture as the gold standard. Results　Of the 489 suspected patients, 183 (37.42%) were diagnosed with brucellosis, while 234 (47.85%), 148 (30.27%) and 195 (39.88%) were positive by RBPT, ELISA and SAT, respectively. The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of RBPT in the diagnosis of brucellosis were 95.08%, 80.39%, 74.36%, 96.47%, and 85.89%, respectively; the values of the above parameters for ELISA were 78.69%, 98.69%, 97.30%, 88.56%, and 91.21%, respectively; those values of SAT were 98.36%, 95.10%, 92.31%, 98.98%, and 96.32%, respectively. The sensitivity of RBPT was significantly higher than ELISA, but the specificity and accuracy were significantly lower than ELISA (all P<0.05). The sensitivity and accuracy of SAT diagnosis were significantly higher than ELISA, but the specificity was significantly lower than ELISA (all P<0.05). There was no significant difference between SAT and RBPT in the sensitivity of diagnosis, but the specificity and accuracy were significantly higher than those of RBPT (P<0.05). Conclusion　RBPT and SAT have high sensitivity in diagnosis of brucellosis, while ELISA has high specificity in diagnosis. RBPT with high sensitivity and convenient operation can be used for primary screening in field detection, and then the other two methods can be used for rechecking, so as to further improve the efficiency and accuracy of diagnosis of brucellosis.

This study aimed to evaluate the therapeutic effect of IR-61, a novel mitochondrial heptamethine cyanine dye with antioxidant effects, on diabetes mellitus-induced erectile dysfunction (DMED). Eight-week-old male Sprague-Dawley rats were intraperitoneally injected with streptozotocin (STZ) to induce type 1 diabetes. Eight weeks after STZ injection, all rats were divided into three groups: the control group, DM group, and DM + IR-61 group. In the DM + IR-61 group, the rats were administered IR-61 (1.6 mg kg

OBJECTIVE: To establish a Parotid Imaging Reporting and Data System (PI-RADS) for CT diagnosis of the parotid gland neoplasms and to investigate the clinical applicable value and feasibility of PI-RADS. METHODS: Patients who had been diagnosed with primary parotid gland neoplasms and had received surgical treatments in Peking University School and Hospital of Stomatology during the period of January 2013 to December 2016 were included in this study. The diagnoses were confirmed by the postoperative pathological examinations in all the patients. The CT imaging data of all patients were retrospectively reviewed and analyzed by two readers in consensus. Imaging characteristics related to the parotid neoplasms were extracted and quantified. Based on comprehensive analysis of the imaging characteristics, the probabilities of the benign and malignant neoplasms were evaluated and classified into six grades, PI-RADS 1-6 (PI-RADS 1: normal parotid gland; PI-RADS 2: confidently benign lesions; PI-RADS 3: probably benign lesions without confirmed evidence of malignancy; PI-RADS 4: suspected malignancy without sufficient evidence of malignancy; PI-RADS 5: confidently malignant lesions; PI-RADS 6: lesions with confirmed pathological evidence of malignancy). RESULTS: A total of 897 patients with 1 003 parotid lesions were included. The lesions included 905 benign and 98 malignant lesions. The proportions of the malignancies in PI-RADS 2, PI-RADS 3, PI-RADS 4 and PI-RADS 5 according to the two readers in consensus were 0.4%, 5.7%, 35.5% and 96.7% respectively. The overall Cohen's Kappa test showed medium consistency between the two independent researchers (κ=0.614, P<0.001, 95%CI: 0.569-0.695). Pearson Chi-square test showed that the proportions of malignancies increased with the diagnostic PI-RADS grades (Cochran-Armitage trend test, Z=-15.579, P<0.001). The results of Pearson Chi-square tests showed significant differences between the grades [PI-RADS 2 and 3 (χ²=12.048, P=0.001); PI-RADS 3 and 4 (χ²=75.231, P<0.001); PI-RADS 4 and 5 (χ²=32.266, P<0.001)]. CONCLUSION PI-RADS can be used to evaluate the risk of malignancy and will be helpful to improve the imaging diagnosis and clinical treatment of parotid gland neoplasms.
Humans ; Magnetic Resonance Imaging ; Male ; Parotid Gland/diagnostic imaging* ; Parotid Neoplasms ; Prostatic Neoplasms ; Retrospective Studies ; Tomography, X-Ray Computed

Adolescent ; Busulfan ; therapeutic use ; Child ; Child, Preschool ; Cyclophosphamide ; therapeutic use ; Cyclosporine ; therapeutic use ; Female ; Hematopoietic Stem Cell Transplantation ; methods ; Humans ; Infant ; Leukemia ; drug therapy ; mortality ; therapy ; Leukemia, Myeloid, Acute ; drug therapy ; mortality ; therapy ; Male ; Mycophenolic Acid ; therapeutic use ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; drug therapy ; mortality ; therapy ; Retrospective Studies ; Treatment Outcome

OBJECTIVETo analyze the clinical efficacy and possible influencing factors of autologous hematopoietic Stem cell transplantation (auto-HSCT) in the treatment of patients with multiple myeloma (MM).

METHODSClinical data of 40 MM patients received auto-HSCT in the Department of Hematology of Henan Cancer Hospital from September 2010 to November 2017 were retrospectively analyzed, the clinical curative efficiency was summarized and the related factors were analyzed.

RESULTSThe curative efficiency of the patients before transplantation was 9(22.5%) with complete remission(CR), 5(12.5%) with very good partial remission(VGPR), 26(65%) with partial remission(PR), respectively, one of them was PR after 3 recurrences. The curative efficiency after transplantation was 22(55%) with complete remission(CR), 12(30%) with very good partial remission(VGPR), 6(15%) with partial remission(PR), respectively. And 2 cases were CR after double transplantation. Median follow-up time was 28.4 (3.1 to 88) months,15 cases presented disease progression, 7 cases were dead, 3-year estimated progression-free survival(PFS) and overall survival(OS) rate were 45.1% and 82% respectively. Unvariate analysis showed that the OS was affected by ISS stage (P<0.05), CR and VGPR (P<0.05) after transplantation; PFS was affected by ISS stage (P<0.01), before transplantation induction therapy (27 cases with bortezomizomi or thalidomide) (P<0.05), disease risk stratification (6 cases in high risk group) (P<0.05) , CR and VGPR (P<0.05) before transplantation, CR and VGPR (P<0.01) after transplantation. Cox multivariate regression analysis showed that the independent prognostic factors for OS were ISS stage, CR and VGPR after transplantation; the independent prognostic factors for PFS were the CR, VGPR, ISS stage after transplantation and induction therapy before transplant.

CONCLUSIONAuto-HSCT can improve the clinical efficacy and survival rate of MM patients; ISS stage, CR and VGPR after transplantation are independent prognostic factors for OS and PFS, and induction therapy before transplantation is also an independent prognostic factor for PFS.

OBJECTIVEEscape from the body's immune response is a basic characteristic of lung cancer, and indoleamine-2,3-dioxygenase (IDO) plays a key role in mediating immune escape of non-small-cell lung cancer, which leads to recurrence and metastasis. Feiji Recipe, a compound Chinese herbal medicine, has the effect of stabilizing lesions and prolonging survival in patients with lung cancer. The purpose of this study was to investigate the mechanisms underlying the anticancer properties of Feiji Recipe.

METHODSAn orthotopic transplant model of mouse Lewis lung cancer, with stable expression of IDO gene, was established in C57BL/6 mice. Optical imaging was used to observe the effects of Feiji Recipe in the treatment of lung cancer in vivo. The effects of Feiji Recipe on the proliferation of mouse Lewis lung cancer cell line 2LL, 2LL-enhanced green fluorescent protein (2LL-EGFP) and 2LL-EGFP-IDO were investigated, and the apoptosis of T-cells was examined by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide using flow cytometry. Chemical composition of Feiji Recipe was validated by high-performance liquid chromatography.

RESULTSCompared to the control group, the survival of animals treated with Feiji Recipe was significantly prolonged (P = 0.0074), and the IDO protein level decreased (P = 0.0072); moreover, the percentages of CD4CD25 T-cells and Foxp3 T-cells were significantly decreased (P < 0.05). The molecular mechanism of Feiji Recipe against lung cancer may relate to the regulation of immune cells, such as T-cells and regulatory T-cells.

CONCLUSIONThe molecular mechanism of Feiji Recipe in treatment of lung cancer is to restore the function of T-cells in the cancer microenvironment through interfering with the IDO pathway.

Animals ; Apoptosis ; drug effects ; Carcinoma, Lewis Lung ; drug therapy ; enzymology ; immunology ; physiopathology ; Cell Proliferation ; drug effects ; Disease Models, Animal ; Drugs, Chinese Herbal ; administration & dosage ; Growth Inhibitors ; administration & dosage ; Humans ; Indoleamine-Pyrrole 2,3,-Dioxygenase ; genetics ; immunology ; Lung Neoplasms ; drug therapy ; enzymology ; immunology ; physiopathology ; Male ; Mice ; Mice, Inbred C57BL ; T-Lymphocytes, Regulatory ; drug effects ; immunology

OBJECTIVETo establish a rat model of full-thickness skin defect to receive bone marrow mesenchymal stem cell transplantation for wound repair.

METHODSA full-thickness skin defect measuring 4 cmx4 cm in 36 F344 rats, which were divided into 3 groups with the wound covered with alloskin graft, acellular dermal matrix, or petrolatum gauze. In vitro cultured BMSCs in the 5th passage were transplanted into the skin defect, and the time of wound dressing dissociation and number of transplanted Brdu-positive cells in the wound were observed 14 days later.

RESULTSThe alloskin graft resulted in significantly longer time before dressing dissociation, with greater number of Brdu-positive cells in the wound than the other two wound dressings (P<0.001). The acellular dermal matrix showed better effect than petrolatum gauze in terms of the dressing dissociation time and the viable transplanted cell number in the wound.

CONCLUSIONAlloskin graft can be ideal for covering the wound surface to protect the transplanted BMSCs in rats.

Animals ; Bone Marrow Cells ; cytology ; Dermis ; transplantation ; Female ; Male ; Mesenchymal Stem Cell Transplantation ; Random Allocation ; Rats ; Rats, Inbred F344 ; Rats, Wistar ; Skin ; injuries ; Transplantation, Homologous ; Wound Healing ; physiology

Objective To explore the relationships between the polyrnorphisms of xeroderma pigmentosum A(XPA) and the susceptibility of esophageal cancer (EC),as well as its interaction with environmental factors-gene in Changzhi area,Shanxi province. Methods A case-control study was conducted,including 196 cases of EC and 201 controls.XPA 23G polymorphisms were determined with polymerase chain-restriction on fragment length polymorphism (PCR-RFLP).Results The risk of EC was significantly degraded in the individuals who had been carrying the XPA heterozygote (A/G) and mutation genotype (G/G),compared to those with wild genotype (X2=16.21,P＜0.01) and the ORs were 0.58 (0.37-0.91) and 0.32 (0.18-0.56),respectively.There was negative interaction between XPA 23G mutation genotype and the consumption of pickled food (S=0.04,API=-0.77).Conclusion Genetic polymorphism in the XPA 23G might be associated with esophageal cancer in Changzhi area,and there was a negative action between XPA predisposing genotype and the consumption of pielded food.

OBJECTIVETo investigate the effect of intracoronary adenovirus vector encoding hepatocyte growth factor gene (Ad(5)-HGF) on hematopoietic stem cells mobilization in patients with extensive coronary heart disease.

METHODSPatients with extensive coronary heart disease were treated with intracoronary infusion of adenovirus vector encoding hepatocyte growth factor (Ad(5)-HGF 5 x 10(9) pfu) gene plus stent implantation (n = 9) or equal physiological saline plus stent implantation (n = 9). Angioplasty and stent implantation was performed according to standard clinical practice by the femoral approach and blood samples were drawn from each patient at baseline before PCI, 6 to 24 hours and 6 days post procedure. The number of CD34(+), CD38(+) and CD117(+) cells in peripheral blood was analyzed by flow cytometer.

RESULTSThe number of circulating CD34(+) cells in Ad(5)-HGF gene treatment group 6 hours after procedure and the number of circulating CD117(+) cells 6 days post procedure were significantly higher in Ad(5)-HGF gene treatment group than those in the control group (0.104 +/- 0.082 vs. 0.022 +/- 0.012, P = 0.021) and (0.058 +/- 0.058 vs. 0.012 +/- 0.009, P = 0.034), respectively.

CONCLUSIONIntracoronary administration of Ad(5)-HGF could mobilize hematopoietic stem cells into peripheral blood and the consequent role of this observation on myocardial regeneration warrants further detailed studies.

Adenoviridae ; genetics ; Aged ; Coronary Disease ; blood ; Female ; Genetic Therapy ; Genetic Vectors ; Hematopoietic Stem Cell Mobilization ; methods ; Hepatocyte Growth Factor ; genetics ; therapeutic use ; Humans ; Male ; Middle Aged ; Transfection

OBJECTIVETo identify related factors of job burnout in Shanghai employees.

METHODSFour hundred fifty-six employees in Shanghai were investigated in this study. Self-administered questionnaires were used to assess job burnout and job stress, based on Maslach Burnout Inventory and the Job Demand-Control model as well as Effort-Reward Imbalance Model. Hierarchical linear regression was employed to analyze the relationship of job burnout to personal characteristics and job stress.

RESULTSThe indexes of three dimensions of job burnout were emotional exhaustion 19.70 +/- 8.92, depersonalization 11.95 +/- 4.45 and reduced personal accomplishment 28.10 +/- 10.08. Job stress was found to be affected differently in three dimensions of job burnout. Job demand, effort and over-commitment had positive impact on emotional exhaustion. Job control had a negative association with emotional exhaustion. There were significant relationship between depersonalization and age, sex and education of employees. Job control, reward and over-commitment affected the index of depersonalization. Education level and social support increased personal accomplishment index.

CONCLUSIONIt is necessary to reduce job stress and care about personal characteristics in preventing job burnout.

Adult ; Burnout, Professional ; epidemiology ; psychology ; Female ; Humans ; Male ; Middle Aged ; Occupational Health ; Personality Inventory ; Regression Analysis ; Social Support ; Stress, Psychological ; epidemiology ; Surveys and Questionnaires