12 cases of human placentas were obtained after administration of Chinese medicinal herb (Chuan-Xin-Lian) -induced abortion during mid-pregnancy. Six placentas from curettage induced abortion during mid-pregnancy were used as controls. All the specimens were studied histochemically and immunohistochemically by using antiserum to HCG with PAP method. In most of the specimens from women treated during mid-pregnancy, we observed a decreased immunoreaction of antiserum to HCG and a decrease of RNA content in the syncytiotrophoblasts. Increased activity of acid phosphatase in dccidual cells was observed during mid-pregnancy. These findings indicate that during mid-pregnancy, Chinese medicinal herb (Chuan-Xin-Lian) can reduce the synthesis of HCG in syncytiotrophoblasts and can initiate uterine contractions, so that abortion results. The possibility that the changes of lysosomal enzymes are involved in the initiation of uterine contractions is disscused.

24 cases of human placentas were obtained from rivanol-induced abortion, and 6 cases from cesarean section, curettage, and water saccule-induced abortion were chosen for comparative study. All the specimens were proccessed under the same histological and histochemical procedures.In all the specimens from rivanol-induced abortion we observed a reduction in the activity of the ?~5-3?-hydroxysteroid dehydrogenase and of the number of fine lipid droplets in the syncytiotrophoblasts, and in these cells we also observed an increased activity in acid phosphatase in most of the specimens and a decrease of RNA content in a few specimens. A large number of decidual cells and a few trophoblasts showed necrotic changes. The chorionic plate also showed necrosis and distinct inflammatory reactions, and on the fetal surface of the placenta the blood circulation showed disturbance. These changes indicated that rivanol had demaged the placenta and reduced its synthetic function of progesterone which we believed played a rote in terminating pregnancy and caused abortion eventually. It was suggested that the intraamniotic injection of rivanol is preferable to extraamniotic injection.

A murine MTEC_1 thymus epithelial cell line established by us has been characterized. The cells were polyhydral and closely packed each other as epithelial like cells. Using anti-keratin antibody, the keratin were shown in cytoplasm of all cells. Under electronmicroscope, bunches of tonofilaments were clearly shown in the cytoplasm, and desmosomes were seen between neighbouring cells. Using anti-mouse epithelial cell monoclonal antibodies for immunohistochemical study, nearly all of the MTEC_1 cells were MTS33 positive. It suggests that MTEC, cells were derived from the epithelial cells located in medulla. The majority of the MTEC_1 cells have normal mouse diploid chomosome number of 40. These results provide evidence that MTEC, cell line is normal murine thymus epithelial cells.

Objective To explore the dynamic changes of von willebrand factor(VWF)and Pseleetin in the finger-replanted patients,and the relationship between the prognosis of the surgery and hypercoagulability.Methods From December 2004 to December 2006,eishty finger-replanted patients were recruited to our study.with 40 healthy volunteers as controls.Plasma VWF and P-selectin were detected by enzyme-linked immunosorbent assay(EUSA)in both controls and patients before or after replantation.Results The VWF and P-selectin levels had significant differences between the replantations and controls(F=14.76,11.76,P＜0.01).The VWF levels in the patients of 1,4,8,16 hours after replantation were(1 715±493),(1 396±549),(1 266±504),(1 163±436)U/L respectively,all markedly higher than the controls(P＜0.01).The P-selectin levels in patients of 1,4,8,16,24 hours after operation were(14.7±2.6),(12.5±3.0),(11.8±3.2),(11.1±3.0)、(10.5±2.6)μg/L,significanfly higher than the controls(P＜0.01).The VWF levels in patients of pre-replantion and the 1,4,8,16,24,48,72 hours after replantation were(854±209),(1 535±389),(1 177±407),(1 040±283),(958±216),(829±193),(777±151),(713±137)U/L in successful group,and were(1 202±164),(2 333±243),(2 146±161),(2 039±244),(1 865±170),(1 645±283),(1 427±331),(1 188±262)U/L in unsuccessful groups.They were all significantly different at the same test-time points between two groups(t=4.44,5.12,6.10,8.43,10.17,8.85,5.10.4.61,P＜0.05).The P-selectin levels in patients of 1,4,8,16,24,48,72 hours after replantation were(13.9±2.5),(11.2±2.0),(10.2±1.6),(9.6±1.2),(9.2±0.9),(9.5±0.6),(9.3±0.4)μg/L in successful group,and(17.2±1.0),(16.9±1.0),(17.0±1.3),(16.1±1.1),(14.9±1.5),(13.8±1.4),(12.8±1.2)μg/L in unsuccessful group.Significant difference existed at the same testtime points between two groups again(t=5.22.9.91,10.35,12.79,9.46.9.45,9.33,P＜0.01).After replantation,both VWF and P-selectin were rapidly elevated and went to the summit 4 hours later,then declined to pre-replantation level about 24 to 48 hours later after replantation.Conclusions VWF and P-selectin were associated with the hypercoagulability.Dynamic monitoring VWF and p-selectin may be useful in determining the existence of hypercoagulability and the therapy of anti-coagulability.

OBJECTIVETo investigate the therapeutic effect of heating and bandage treatment for chronic lymphedema of extremities accompanied with erysipelas.

METHODSFrom March 2004 to March 2013, 80 patients with chronic lymphedema of extremities accompanied with erysipelas were analyzed retrospectively. The patients underwent heating treatment (42 degree centigrade) with infrared light machine made by Shanghai Ninth People's Hospital, 2 hours a day, 20 hours for a session. Bandage treatment was adopted after heating treatment. 1 or 2 sessions were performed for each patient every year. The erysipelas occurring frequency, patients subjective feeling, treatment sessions and elastic material usage was recorded during the follow-up period. The erysipelas occurring frequency was tested by the method of rank and inspection. SPSS 17. 0 was used for statistical analysis.

RESULTSAfter heating and bandage treatment, the occurrence frequency of erysipelas was obviously controlled (Z = 7.598, P = 0.000). Erysipelas was not occurred any more in 60 (75%)patients. Remarkable reduction of occurrence frequency of erysipelas caused by various reasons was showed after treatment. Primary and secondary lymphedema after treatment were compared with those before treatment respectively, showing statistical difference (Z = 3.417 and 5.009, P = 0.001 and 0.000). Most of patients felt better subjectively. The relapse rate of erysipelas and lymphedema was lower if keeping using elastic material to give more pressure on extremities after therapy.

CONLUSIONSHeating and bandage treatment can obviously reduce the occurrence frequency of erysipelas. It can improve the quality of patients' lives. Simultaneously, the subsequent elastic material pressure therapy is essential.

Bandages ; Chronic Disease ; Combined Modality Therapy ; methods ; Erysipelas ; complications ; therapy ; Extremities ; Female ; Humans ; Hyperthermia, Induced ; methods ; Lymphedema ; complications ; therapy ; Middle Aged ; Pressure ; Recurrence ; Retrospective Studies ; Time Factors

Objective:Based on the principle that the aggregation-induced emission (AIE) fluorescent probe 6PD-DPAN could bind and aggregate with bacteria, and the fluorescence intensity could reflect the quantity of bacteria, a new method for rapid, convenient, and accurate bacterial drug sensitivity testing was established, which provided a basis for rapid and accurate clinical drug use.Methods:This was a methodological evaluation study. A total of 107 clinical isolates were collected from Houjie Hospital of Dongguan City from January to December 2022, among which 46 isolates were used for the establishment of the new method, and 61 isolates were used for methodological validation. The minimum inhibitory concentration (MIC) determined by broth microdilution method was used as the gold standard, and three antibacterial drugs, gentamicin, levofloxacin, and cefotaxime, were used as experimental drugs. The AIE plate was incubated for 4 hours, and the fluorescence intensity was measured every half an hour to draw a fluorescence change curve. The MIC results were compared with the CLSI breakpoints to determine the bacteria as sensitive, intermediate, or resistant. To simplify the detection process, the ratio of fluorescence intensity at 4 hours(R) was calculated, and the ROC curve was used to analyze the efficacy of R in determining bacterial growth and establish its cutoff value. The new method was used to determine the MIC of 61 clinical isolates, with broth microdilution method as the gold standard. The basic consistency, categorical consistency, very major errors, and major errors of the new method were analyzed, and the consistency between the two methods was determined by the Kappa test.Results:ROC curve analysis of the R after 4 hours of culture: The cut-off value was 3.0, with both sensitivity and specificity for determining bacterial growth being 100%. The median (interquartile) R for bacterial growth inhibition was 11.1 (8.6, 14.4); the median R-value for bacterial growth was 1.1 (1.0, 1.2). Compared to the gold standard, the newly established method showed 100% (61/61) essential agreement in detecting MICs of 61 clinical isolates, with a categorical agreement of 96.7% (59/61). There were no very major or major errors, and the Kappa value was 0.94, indicating good consistency between the newly established method and the microbroth dilution method.Conclusions:This study successfully established a new method for bacterial drug sensitivity testing based on AIE technology, which could obtain satisfactory results within 5 hours, providing a basis for early precision drug treatment in clinical practice.