Electromagnetic Fields ; Environmental Exposure ; Humans ; Hypersensitivity ; etiology

Objective To investigate the agitation effect of dexmedetomidine in the operation of radical hysterectomy by general anesthesia in patients.Methods 68 cases in this study who were under the operation of radical hysterectomy by general anesthesia in our hospital were selected, and randomly divided into the group A and the group B, 34 cases in each group.Group A received dexmedetomidine after tracheal intubation, and group B received physiological saline as the measurement of group A, hemodynamic and inflammatory factors were measured at different time points in anesthesia, the corresponding indexes and the degree of emergence delirium were compared.Results Compared with T1 , levels of HR and MAP increased, levels of SpO2 decreased at T3 and T4 in group B, levels of CRP, TNF-αincreased at T2 , T3 , T4 , T5 in group B, levels of CRP, TNF-αincreased at T3 , T4 , T5 in group A(P<0.05), and compared with the group A, levels of HR and MAP were higher at T3 and T4, levels of SpO2 were lower,levels of CRP, TNF-αwere higher at T2, T3, T4, T5in group B(P<0.05).The cough response score and agitation score in group B were higher than group A, and sedation score was lower than group A ( P <0.05 ) , the grade of emergence delirium in group A was better than group B ( P <0.05 ) . Conclusion Dexmedetomidine in the operation of radical hysterectomy by general anesthesia could reduce the emergence of agitation occurred, inhibit extubation reaction, but would not extend the anesthesia recovery time.

The aim of this study was to explored the mechanism of inhibitory effect of chloroquine on IL-6 release induced synergistically by bacterial DNA and endotoxin. Before experiment mice were sensitized for 1 hour with D-GalN by I.P. injection. Mortality within seven days was observed after mice were challenged with CpG ODN or LPS with or without chloroquine treatment. ANA-1 cell line cells were cultivated in vitro. We investigated the influence of chloroquine on IL-6 release induced by both EC DNA and LPS. Expressions of TLR4 and TLR9 and activation of NF-?B p65 were investigated in cultured THP-1 cells pretreated with chloroquine and stimulated by EC DNA and LPS. The results showed that all mice died within 4 hours after challenged with CpG ODN and LPS. Only 4 or 5 mice pretreated with chloroquine (30mg/kg) died after challenged with CpG ODN and LPS (P

Adult ; Altitude ; Case-Control Studies ; Humans ; Immunoglobulins ; blood ; Occupational Exposure ; T-Lymphocyte Subsets ; immunology

Objective To explore the effects of case method teaching in the medical postgraduate student of dermatology English teaching. Methods The experiment group was taught by case method teaching, and the control group was taught by traditional teaching model. The quantitative research and questionnaire investigation were used to evaluate the teaching methods. Results (1) There were significant differences in professional English test scores of Dermatology between the two groups;(2) The questionnaire investigation revealed that the case method teaching have achieved a higher evaluation from students in stimulating their enthusiasm of learning English,cultivating their ability of using language and improving capability of resolving clinical problem. Conclusion Case method teaching could help students cultivate the abilities to interpersonal communication and cooperation, raise the sense of innovation and innovation capacity,strengthen the relation between skills and theoretical knowledge, and improve the ability of self-management, learn cooperation and information literacy. But we should improve the case-based teaching and evaluation methods,in order to improve the teaching method of case teaching quality.

Objective To forward the concept of solution space of pharmacokinetics for studying radiophannaceutical distributions in animal models. Methods On the basis of special solutions of differential equations of pharmacokinetics, the solution space was established using the characteristics of linearly independent particular solutions and used to express the pharmacokinetics of pharmaceuticals in vivo. 0. 2 ml (7.4 MBq) 2β-carbomethoxy-3β- (4-corophenyl)-8-(2-18F-fluoroethyl) nortropane (18F-FECNT) was injected through tail vein into normal mice. The mice were sacrificed by decapitation at 5, 15, 30, 60, 120 and 180 min post-injection. Brain tissues were removed and weighed, and radioactivity was counted with the γ-counter. The solution space theory was used to study pharmacokinetics of 18F-FECNT in brain tissues of mice. Results The result showed that all solutions of pharmacokinetics models, based on differential equations, were included in the solution space. The solution of any organ or tissue could be linearly expressed by bases of the solution space. When the dimension number of the solution space was no more than 3, the solution could be directly expressed with coordinate picture. By this rule in our theory, the quantity of 18F-FECNT in brain tissues of mice changed with time, which was accorded with the experiment. The coordinates of striatum, frontal cortex, temporal cortex, occipital cortex, parietal cortex, hippocampus and cerebellum in the solution space were ( 10.13, 1.49), (4.27, 0. 84), (4.48, 0.81 ), (2.89, 0.98), (3.65, 0. 83),(3.55, 0. 98) and (2.03, 1.25 ), respectively. Conclusion The theory of solution space could be used to study pharmacokinetics of 18 F-FECNT in mice brain.

Objective To investigate the roles of CpG motifs in the release of cytokines induced by bacterial DNA. Methods Mice were sensitized with injection of D GalN (600 mg/kg) into the abdominal cavity 1 h before experiment. Mortality was observed after purified Escherichia coli DNA(EC DNA), calf thymus DNA(CT DNA), phosphorothioate backbone CpG oligodeoxy nucleotides (CpG ODN) and CG sequence inverted oligodeoxy nucleotides (non CpG ODN) were injected venously into mice. The injection dosage of DNA given was 30 mg/kg but ODN was 10 nmol/mouse. THP 1 cell lines were cultured in vitro . After the above reagents were added into the culture, TNF ?, IL 6, IL 1? levels were detected to observe the different abilities of these reagents to induce the release of cytokines. Results EC DNA and CpG ODN could induce the death of mice and the large amount of release of cytokines, but CT DNA and Non CpG ODN could not. Conclusion CpG ODN has the ability to induce macrophage to release cytokines largely. CpG motifs, which may play an important role in the release of cytokines induced by bacterial DNA, may probably be the structural basis of bacterial DNA.

Carcinoma, Renal Cell ; metabolism ; pathology ; surgery ; Carcinoma, Transitional Cell ; metabolism ; pathology ; surgery ; Carcinosarcoma ; metabolism ; pathology ; surgery ; Female ; Follow-Up Studies ; Humans ; Keratins ; metabolism ; Kidney Neoplasms ; pathology ; surgery ; Lymphatic Metastasis ; Male ; Prostatic Neoplasms ; metabolism ; pathology ; surgery ; Retrospective Studies ; Survival Rate ; Ureteral Neoplasms ; metabolism ; pathology ; surgery ; Urinary Bladder Neoplasms ; metabolism ; pathology ; surgery ; Urologic Neoplasms ; metabolism ; pathology ; surgery ; Vimentin ; metabolism

In this paper,we analyzed one case of primary multifocal extranodal non-Hodgkin's lymphoma and reviewed the related literatures.We investigated the clinical data of this case with primary multifocal extranodal lymphoma and retrospected the related references.The key words,primary extranodal lymphoma and multifocal,were used to search Pubmed and Wanfang Database,and finally only three cases were found.The 68-yea-old woman was confirmatively diagnosed as primary multifocal extranodal B cell non-Hodgkin's lymphoma.The positron emission tomography/computed tomography (PET/CT) scan showed multiple hypermetabolic lesions in the left humerus,both kidneys and ileum.The confirmative diagnosis was based on clinical manifestations and serological tests,imaging features of CT and PET/CT,and especially on the histopathological and immunohistochemical studies.After one cycle chemotherapy (rituximab,Vincristine and prednisone) and another cycle (rituximab,Vincristine,cyclophosphamide and prednisone),a repeat PET/CT scan showed a complete metabolic resolution of the lesions in the kidneys and ileum,and a partial metabolic resolution of the left humerus.After four cycles of chemotherapy,there were new extensive involvements of the right supraclavicular and intrapulmonary lymph nodes,bilateral pleural and pericardium,and the patient gave up chemotherapy.This case demonstrated the imaging findings of an uncommon primary multifocal extranodal lymphoma in left humerus,both kidneys and ileum,and highlighted the usefulness of CT and PET/CT scan in identifying the extent of disease involvement,in guiding a biopsy,and in assessing the treatment response of lymphoma.It is essential to differentiate between primary multifocal extranodal lymphoma and lymphoma extensive metastases.

Objective To investigate the occurrence and risk factors of surgical site infection(SSI)in patients with colon or rectal cancer.Methods Patients who were diagnosed with colon or rectal cancer and underwent emergency or elective surgery in a hospital between January 1,2008 and December 31,2013 were monitored prospectively.General data,operation condition,and antimicrobial use of patients were analyzed,occurrence of SSI was observed every day and followed up after operation,risk factors of SSI were analyzed by univariate and multivariate analysis.Results A total of 694 patients with colon cancer(n=380)or rectal cancer(n=314)were monitored,SSI occurred in 125 patients,including 15 incisional infection and 110 organ/space infection,incidence of SSI was 18.01%;incidence of SSI in colon cancer patients and rectal cancer patients were 17.11%(65/380)and 19.11%(60/314)respectively.Univariate analysis showed that among colon cancer patients,incidence of SSI was higher in those with co-infection of other sites during perioperative period,underlying diseases,phase Ⅰcancer,and relaxation suture(all P<0.05);among rectal cancer patients,incidence of SSI was higher in those with co-infection of other sites during perioperative period,underlying diseases,obstruction,operation time>2 hours,stoma,drainage,relaxation suture,rinsing during operation,and use of antimicrobial agents>72 hours(all P<0.05);logistic regression analysis showed that the independent risk factors for SSI in colon cancer patients were underlying disease,co-infection of other sites during perioperative period,and relaxation suture(all P<0.05);independent risk factors for SSI in rectal cancer patients were underlying disease,co-infection of other sites during perioperative period,and stoma(all P<0.05).Conclusion Prevention and control measures should be taken according to risk factors of SSI in patients undergoing colon cancer and rectal cancer surgery,especially those who with chronic underlying diseases and other site infection during perioperative period;in addition,patients with colon or rectal cancer should also pay attention to relaxation suture and stoma respectively.