Objective To understand the clinical distribution situation of streptococcus penumoniae (SP) and drug susceptibility test results to provide a basis for the clinical diagnosis,treatment and prevention of SP infection.Methods Totally 416 nonrepeat strains of SP were isolated during 2010 to 2015.Their identification and drug susceptibility test were performed by using the ATB Express bacterial identification system.The results were interpreted according to the standard of CLSI 2014 edition.Results In these 6 years,SP showed the isolation peak in spring and winter;the detection rate of respiratory tract specimens reached more than 90 ％;the young children and elderly people were predominant;SP maintained high sensitivity to penicillin,amoxicillin,etc.,the difference in the sensitivity rate and non-sensitivity rate had statistical significance(P＜0.05);but SP showed high level non-sensitivity to clindamycin,erythromycin,etc.,the difference in the sensitivity rate and non-sensitivity rate had no statistical significance (P＞0.05).Conclusion Although β-lactam antibiotics such as penicillin can still be used as the first choice of therapy,but PISP and PRSP show the increasing trend year by year;therefore the antibacterial drugs should be selected according to the drug susceptibility test results.

Objective To explore the effect of corticotropin releasing factor (CRF) and its receptor on visceral sensitivity and colon motility of irritable bowel syndrome (IBS) rats. Methods sixty SD rats were divided randomly and equally into control group (without treatment),model group (sensitized in turn with camphor odor as conditional stimulation and physical restraint in combination with rectal distention pressure as non-conditional stimulation),treatment control group (injected physiological saline into lateral ventricles before treatment),treatment group 1 (injected CRF-R1antagonist into lateral ventricles before treatment),treatment group 2 (injected CRF-R2 agonist into lateral ventricles before treatment). Then the rats' visceral sensitivity were assessed by AWR,and colonic electricity activities such as volatility,maximum amplitude of fast wave and slow wave,interdigestive number of contraction wave and index of contraction were recorded. The data was analyzed with SPSS 16. 0 software. Results By the amount of ractal water injection to reach AWR=3 as the evaluation index,model group [(0. 90±0. 11) ml] showed higher visceral sensitivity than that of control group [(1. 23±0. 07) ml,F=82. 586,P＜0. 01],and colonic electricity activity increased (P＜0. 05),model was successfully set up. There was no significant difference of the amount of ractal water injection between model group [(0. 90±0. 11) ml] and treatment control group [(0. 81±0. 11) ml,F=3. 734,P＞0. 05]. Compared with treatment control group,the visceral sensitivity decreased in treatment group 1 [(1. 28±0. 07) ml,F=161. 878,P＜0. 01] and treatment group 2 [(1. 22±0.05) ml,F=121. 564,P＜0. 01]. There was no significant difference between treatment control group and model group in electricity activities such as volatility,maximum amplitude of fast wave and slow wave,interdigestive number of contraction wave and index of contraction (all P＞0. 05). While the electricity activities was weakened in treatment group 1 and 2 compared with the treatment control group (all P＜0. 05). Conclusions CRF plays an important role in the pathogenesis of IBS. Inhibition of CRF-R1 or activation of CRF-R2 may lower visceral hypersensitivity and decrease colon motility of rats.

Objective The periacetabular tumor has a low rate of incidence, but its special location poses a challenge to clinical treatment.The aim of this study was to discuss the methods, effects, and complications of surgical treatment of periacetabular tumors. Methods We retrospectively analyzed the clinical data of 36 cases of periacetabular tumor surgically treated in our depart-ment, including 21 males and 15 females, aged 15 to 64 (45.2 ±6.3) years.Among them, there were 8 cases of benign tumor (4 ca-ses of simple bone cyst, 1 case of desmoplastic fibromas, 1 case of osteofibrous dysplasia, and 2 cases of hemangioma) and 28 cases of malignant tumor (5 cases of osteosarcomas, 12 cases of chondrosarcomas, 2 cases of giant cell tumor of the bone, 1 case of malignant chondroblastoma, 2 cases of malignant fibrohistiocytoma, and 5 cases of metastatic tumor of the bone).The benign cases received sim-ple tumor resection plus bone graft and steel plate system internal fixation, while malignant cases underwent reconstruction by combined pedicle screw fixation system with bone cement. Results No patients died perioperatively and controllable complications occurred in 5 cases after operation.All the patients were followed up for 5 to 96 months except for 1 case of benign tumor.None of the benign cases experienced recurrence, and all of them achieved normal hip function.Lung metastases occurred in 10 malignant cases (4 cases of os-teosarcomas and 6 cases of chondrosarcomas) , who died of respiratory failure, and the other 18 remained tumor-free after surgery.Of the 2 patients with malignant fibrohistiocytoma, 1 died 2 years postoperatively and the other survived with tumor.Neither local recur-rence nor lung metastasis was found in the patients with chordoma and malignant chondroblastoma till the end of follow-up.The 5 pa-tients with metastases died within 3 years after operation.At 3 months after surgery, the Harris scores after total hip replacement were >90 in the 7 benign cases, 70-79 in 9 malignant cases, and <70 in the other 19 malignant cases. Conclusion For the treatment of malig-nant tumors, reconstruction by combined pedicle screw fixation system with bone cement does not affect the general daily activities of the pa-tients.Preoperative embolization of the internal iliac artery can reduce bleeding and improve operation safety, and measures should be taken to minimize postoperative complications.

AIM　To study the structures of the epimerides of cycloclausenamide. METHODS　The structures of compound I, extracted from Clausena lansium (Lour.) Skeels, and synthesized compound III were determined by single crystal X-ray diffraction analysis. The stereo-structures of compound II and IV were also built up through Tripos force field based on crystal structures of compound I and III. RESULTS　The molecular formula and molecular weight were found to be C18H17O2N and 279.34 respectively. Compound I crystallized in monoclinic system, space group P21 with a=0.5928(1), b=1.5014(1), c=1.6190(1) nm, V=1.4410(3) nm3, Z=4, Dx=1.288 g*cm-3, Rf=0.075, Rw=0.073(w=1/σ2｜F｜), S=3.983; compound III crystallized in triclinic system, space group P1 with a=0.5667(1), b=1.2934(1), c=2.1119(1) nm, α=102.17(1), β=90.25(1), γ=102.65(2)°, V=1.4770(5) nm3, Z=4, Dx=1.224 g*cm-3, Rf=0.047, Rw=0.051(w=1/σ2｜F｜), S=0.467. CONCLUSION　These results showed that compound I and III both are cycloclausenamide except that the directions of the phenyl group on C6 are different. Cycloclausenamide can form 4 pairs of epimerides but the directions of the phenyl group does not affect their energy in free state.

OBJECTIVETo evaluate the erectile and ejaculatory function of sacral tumor patients after sacral nerve root resection and investigate the relationship of erectile and ejaculatory dysfunction (EED) with the level of sacral nerve injury.

METHODSThis retrospective study included 47 male patients aged 16 to 63 (32.6 +/- 6.8) years treated by sacral tumor resection between January 2008 and August 2013. According to the levels of the sacral nerve roots spared in surgery, the patients were divided into four groups: bilateral S1-S3 (n=16), unilateral S1-S3 (n=21), unilateral S1-S2 (n=6), and unilateral S1 (n=4). The patients were followed up for 12 to 41 (27.2 +/- 10.9) months by questionnaire investigation, clinic review, and telephone calls about their erectile and ejaculatory function at 3, 6 and 12 months after surgery and in August 2013.

RESULTSIn the bilateral S1-S3 group, the incidence rates of EED were 31.25% (5/16), 25% (4/16), and 12.5% (2/16) at 3, 6, and 12 months respectively after surgery, with recovery of erectile and ejaculatory function in August 2013. The incidence rates of EED in the unilateral S1-S3 group were 85.71% (18/21), 71.43% (15/21), 52.38% (11/21), and 42.86% (9/21) at 3, 6 and 12 months and in August 2013, respectively; those in the unilateral S1-S2 group were 100% (6/6), 83.33% (5/6), 83.33% (5/6), and 66.67% (4/6) at the four time points; and those in the unilateral S1 group were all 100% (4/4). No statistically significant differences were found in the incidence rate of EED among the patients of different ages or tumor types (P > 0.05).

CONCLUSIONThe incidence of postoperative EED in male patients treated by sacral tumor resection is closely related to the mode of operation. Sparing the S3 nerve root at least unilaterally in sacral tumor resection is essential for protecting the erectile and ejaculatory function of the patient.

Adolescent ; Adult ; Ejaculation ; physiology ; Erectile Dysfunction ; epidemiology ; etiology ; Female ; Humans ; Incidence ; Male ; Middle Aged ; Organ Sparing Treatments ; Peripheral Nervous System Neoplasms ; surgery ; Postoperative Complications ; epidemiology ; Postoperative Period ; Retrospective Studies ; Sacrum ; Spinal Nerve Roots ; injuries ; surgery ; Surveys and Questionnaires ; Young Adult

Objective To summarize radiographic manifestations of granulocytic sarcoma (GS),in order to investigate its radio-graphic feature.Methods Nine patients of GS confirmed by surgery pathology and immunohistochemistry were collected.There were four cases underwent CT scan,2 underwent MRI,3 underwent CT and MRI meanwhile.Results There were 4 cases in the lymph nodes,4 cases in the bone,1 case in the enterocoelia.The density of enlarged lymph node was inhomogeneous,and smaller lymph node was homogeneous density,both enhanced obviously.The density or intensity of the lesions occurred in the canalis verteb-ralis and paravertebra was also homogeneous,slightly enhanced,with bone and medulla ossea invasion.Lesions in the enterocoelia was inhomogeneous desity with clear boundary,enhanced inhomogeneously.Conclusion GS is a rare extramedullary malignant tumor composed of immature myeloid cells.CT and MRI can provide a certain diagnostic value.The perplexity in diagnosing such lesions highlighted the need of careful interpretation of all clinacal,radiographic,histopathological and immunochistochemical details as it is one of the most frequently misdiagnosed disorder.

Objective To study the mechanism of oxidative stress involved in the pathogenesis and relapse of acute monocytic leukemia (M5 ).Methods We detected reactive oxide species (ROS)levels,conducted plasma analysis obtained from 76 M5 patients at diagnosis and at relapse,and observed the ultrastructure of mitochondria of mononuclear cells in peripheral blood by transmission electron microscope.Results Compared with that in the control group,the average fluorescence intensity of intracellular ROS was significantly increased in M5 groups, especially in the relapse patients (P < 0.05 ).Low total antioxidative capacity (T-AOC)and antioxidant enzyme activity were characteristic of M5 at both diagnosis and relapse. However, lactate dehydrogenase (LDH ), malondialdehyde (MDA)and 8-hydroxy-2’-deoxyguanine (8-OHdG)increased significantly at both diagnosis and relapse (P < 0.05 ).Prominent ultrastructural abnormalities (mitochondrial swelling,outer membrane blebs,and aberrant cristae disorder)were present in patients with primary M5,and they were obviously abnormal in relapsing M5 patients.Conclusion Oxidative stress is the initiating factor of M5.Mitochondria are the main intracellular location for ROS generation.To maintain the dynamic balance between ROS and antioxidant defence may be the critical factor for preventing relapse.

Objective To observe the early clinical effect of single kidney transplantation from cardiac death pediatric donors to adult recipients. Methods Clinical data of 6 single kidney transplantations from cardiac death pediatric donors in adult recipients in Department of Organ Transplantation ,Guangdong Province No.2 People′s hospital were retrospectively analyzed. the transplant operations were carried out between January 2010 to may 2016.The median age of 6 pediatric donors was 9 years (5 years to 15 years). All recipients had the same blood type. The median age of 12 recipients was 38 years (21 years to 65 years),with 4 man and 8 women. All recipients received kidney transplantation for the first time,and overall reactive antibodies(PRA) were negative,with HLA mismatch between 1to 4. All recipients received single kidney transplantation in right fossa iliaca. Results 12 kidney transplantations were successful. The renal allografts recovered successfully without acute renal rejection , delayed graft function or primary nonfunction. Renal function of 5 of recipients immediately recovered in 5 days,5 recovered in 10 days,and 2 recovered slowly. 1 recipient manifested urine leak and recovered after drainage. 1 case developed delayed incision healing and recovered after dressing at stage II. All patients and renal grafts functions were wellnormal during follow?up period between 1 month to 36 months. Conclusion The early clinical effect of single kidney transplantation from cardiac death pediatric donors to adult recipients is good and could be a promising pathway to expand the organ donor sources.

Objective To investigate the relationship between clinical presentation and pathological characteristics in HBeAg negative chronic hepatitis B(CHB) patients with steatosis, and to find out the predictors of hepatic inflammation and fibrosis. Methods HgeAg negative CHB patients with (n=56) or without (n=60) steatosis confirmed clinically and pathologically were enrolled in the study. All patients were examined for fasting blood glucose(FBG), fasting insulin (FINS), triglyceride (TG), cholesterol (TC), alanine aminotransferase (ALT), aspartate aminotransferase (AST), gamma-glutamyhransferase (GGT), alkaline phosphatase (ALP) albumin (Alb), globulin(Glb), homeostatic model assessment of insulin resistance (HOMA-IR), HBV-DNA and body mass index(BMI). The association of above parameters with hepatic inflammation, fibrosis and fatty deposition were analyzed statistically. Results It was demonstrated that BMI, FBG, FINS, TG, TC, GGT, ALP , Glb and HOMA-IR were significantly higher in HBeAg negative CHB patients with steatosis than those without steatosis (P<0.05). Whereas the levels of HBV-DNA, Alb, ALT and AST were significantly lower in HBeAg negative CHB patients with steatosis compared with those without steatosis (P<0.05). The hepatic inflammation and fibrosis were aggravated in patients with steatosis. It was implicated that BMI,FBG, FINS, TG, TC, GGT and HOMA-IR(all P values 0.05) were significant predictors for hepatic steatosis, while ALT, AST, Glb and HBV-DNA(all P values <0.05) were significant predictors for hepatic inflammation. And the predictors for hepatic fibrosis were ALT, AST, Alb, Glb and HBV-DNA(all P values <0.05). Conclusions Hepatic steatosis is common in HBeAg negative CHB patients which is positively associated with parameters including BMI, FBG, FINS, TG, TC, GGT, ALP and HOMA-IR. Besides steatosis, the hepatic inflammation and fibrosis are also aggravated in these patients.

Objective To develop a Chinese version of Frommelt Attitude Toward Care of the Dying scale (FATCOD) and evaluate its validity and reliability to provide a tool for the field of hospice care and death education used among nurses.Methods FATCOD scale was adopted according to Brislin's translation model for cross-cultural research and its reliability and validity of the new Chinese version was tested in 126 nurses.Factor analysis and correlation analysis were applied to establish the validity and reliability.Results The Chinese version of FATCOD scale consisted of 30 items.The Cronbach's α coefficient of the scale was 0.828; split-half coefficient of the whole scale was 0.807; the varimax rotation factor analysis of the scale identified twelve principal factors and explained for 69.5％ variances.Conclusions The Chinese version of FATCOD scale is valid and reliable in the sample of nurses,and can be used in the field of hospice care and death education.