Accidents, Occupational ; Humans ; Hydrogen Sulfide ; poisoning

Objective Hermaphroditic planarians possess a very important position in the systematic evolutionary history of animal, as they are capacity of complete regeneration. Hence, the research on histological structure of autofluorescence has been carried out to provide a crucial insight into the developmental and regenerative biology. Methods Part of histological structure of planarian (Dugesia japonica) was revealed with HE method, Masson method and Van Gieson method. Their autofluorescence was observed with ultraviolet. There were six planarians in each stained group and the autofluorescence group. Results Epidermis, outer epidermis of pharynx, protonephridium, intestine, the photoreceptor cells and longitudinal nerve cords, all radiated blue autofluorescence. The epithelial dissociation side of copulatory bursa radiated yellow autofluorescence, its middle part radiated blue autofluorescence, its fundus side radiated weakly blue autofluorescence. Testis could hardly give off autofluorescence. Pigment cells of eyepot could not give off autofluorescence. Conclusion The research on configuration and autofluorescence of planarian eye may offer help for the study of origin and evolutionary law on eye of invertebrate.

Objective To analyze the clinical characteristics,treatment and prognosis of primary esophageal small cell carcinoma (PESC).Methods Fifty-five patients with PESC were analyzed retrospectively.The survival rate was calculated by the Kaplan-Meier method and the Log-rank test using SPSS 17.0 software.Results The median survival time of 55 patients was 12 months.The 6,12,24.36months survival rates of these patients were 87.3 ％ (48/55),50.9 ％ (32/55),12.7 ％ (7/55),7.3 ％ (4/55),respectively.In multivariate analysis,stage and type of treatment were shown to be independent predictive.Conclusion PESC is a malignant tumor with early metastasis and poor prognosis.Combined therapy may improve the survival time of PESC patients.

Objective To investigate the current situation of healthcare-associated infection(HAI)management in grassroots medical institutes in a province.Methods Forty-six grassroots medical institutes in 13 cities of the prov-ince were selected randomly for the survey,questionnaires about the current situation of HAI management in grass-roots medical institutes were filled out,and related data were analyzed.Results Forty-four qualified questionnaires were adopted for analysis,and 2 unqualified questionnaires from public hospitals were excluded.HAI management in 44 medical institutes (100.00%)was in the charge of major leaders in medical institutes.Only 2 institutes(4.55%) set up independent HAI management departments,and 10 institutes(22.73%)established basic regulations and po-sition responsibilities of HAI management,38.67% of medical institutes established regulations of HAI prevention and control in key departments and responsibilities for key positions.The score for the establishment of basic regu-lations and position responsibilities of HAI management in village clinics was lower than the other medical institutes (F =5.762,P <0.01 ).Except aseptic technique,the core regulations of HAI management weren’t implemented well in village clinics compared with the other institutes(P <0.05).Conclusion Organizational settings,HAI man-agement of key departments,and core regulations of HAI management are not performed well in grassroots medical institutes in this province.Village clinics perform the worst in HAI management among all types of grassroots med-ical institutes.More measures,including education and surveillance,should be taken to improve HAI management in grassroots medical institutes.

Objective:To study and analyze the application effect of intervention plan based on unplanned readmission risk model (LACE) in the rehabilitation of patients with acute myocardial infarction (AMI) complicated with cardiac shock (CS) after percutaneous coronary intervention (PCI).Methods:Ninety-three patients with AMI complicated with CS who received PCI in Tianjin Union Medical Center from January 2019 to December 2020 were enrolled. The patients were divided into LACE intervention group ( n = 46) and routine intervention group ( n = 47) according to the different nursing intervention methods. The patients in the routine intervention group received routine interventions, including drug care, diet care, psychological care, health education and telephone follow-up, while those in the LACE intervention group were assessed for the risk of LACE, and then intervention measures were formulated according to the score of LACE index, including strengthening risk awareness, life behavior, daily life ability, self-care ability, health recovery and health needs. The follow-up period in both groups was 3 months. The changes of cardiac function, incidence of adverse cardiac events, readmission rate, self-management ability after intervention and quality of life level before and after intervention were compared between the two groups. Results:There was no significant difference in cardiac function or quality of life before intervention between the two groups. After intervention for 3 months, the cardiac function and quality of life in the two groups were improved as compared with those before intervention. The left ventricular ejection fraction (LVEF) in the LACE intervention group was significantly higher than that in the routine intervention group (0.533±0.076 vs. 0.492±0.072, P < 0.05), the left ventricular end diastolic diameter (LVEDD) was significantly lower than that in the routine intervention group (mm: 47.09±7.01 vs. 53.23±7.15, P < 0.01), and the World Health Organization Quality of Life-brief (WHOQOL-BREF) score was also significantly higher than that in the routine intervention group (66.32±6.19 vs. 55.79±7.26, P < 0.01). The scores of self-management ability in the coronary heart disease self-management scale (CSMS) after intervention in the LACE intervention group were significantly higher than those in the routine intervention group (adverse hobbies score: 17.37±3.24 vs. 14.21±2.73, symptoms score: 14.82±3.11 vs. 10.56±2.65, emotional cognition score: 16.17±2.83 vs. 12.95±2.41, first aid score: 11.85±1.94 vs. 10.62±1.56, disease knowledge score: 15.58±2.73 vs. 12.68±2.61, daily life score: 17.80±2.61 vs. 14.33±2.36, treatment compliance score: 11.47±1.84 vs. 8.56±1.23, all P < 0.01). The incidence of adverse cardiac events and readmission rate in the LACE intervention group were significantly lower than those in the routine intervention group (10.87% vs. 29.79%, 4.35% vs. 17.02%, both P < 0.05). Conclusion:The intervention plan based on LACE risk model can effectively promote postoperative rehabilitation of patients with AMI complicated with CS after PCI, and also help to improve patients' self-management ability and quality of life, which is worthy of clinical promotion and application.

AIM: To evaluate the effect of carbon monoxide(CO) on the permeability of brain blood barrier(BBB) in cerebral ischemic rats. METHODS: SD rats were divided into three groups. Saline, hemin or ZnPP were injected intraperitoneally 12 h before middle cerebral artery occlusion (MCAO), respectively. The concentration of blood CO and the permeability of BBB at 24 h after MCAO were measured. RESULTS: The CO concentration in blood in hemin group was higher than that in saline group( P 0.05). CONCLUSION: CO reduced the permeability of BBB as a messenger gas molecular when its intrinsic concentration was elevated.

Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Breast ; pathology ; Breast Neoplasms ; drug therapy ; pathology ; Cyclophosphamide ; therapeutic use ; Diagnosis, Differential ; Doxorubicin ; therapeutic use ; Female ; Follow-Up Studies ; Humans ; Lymphoma, B-Cell ; drug therapy ; pathology ; Lymphoma, Large B-Cell, Diffuse ; drug therapy ; pathology ; Male ; Middle Aged ; Prednisone ; therapeutic use ; Sarcoma ; pathology ; Spleen ; pathology ; Splenic Neoplasms ; drug therapy ; pathology ; Vincristine ; therapeutic use

Objective: To investigate the effects of psycholog ical factors on treatment and outcome of patients with high altitude pulmonary e dema(HAPE). Methods: In the present study, one hundred and fifty -two patients with HAPE were tested by hospital anxiety and depression scale. Results: The results showed that there were 61 patients (40.13%) with anxiety and 29 patients (19.08%) with depression. The important factors on mental state of patients were preventive education, the first time suffering HA PE, characters of patients, degree of the disease and the medical fee, the less w ere age, sex, occupation and education of patients. Duration of rales of lung an d course of illness were significantly prolonged in HAPE patients with mental di sorders compared to the patients without mental disorder. Conclusion:The study suggests that anxiety and depression might aggravate the state of HAPE.

Objective To evaluate the effectiveness of intern doctor training by 360 degree evaluation scale and to provide references for formulating targeted training plan. Methods A 360-degree evaluation scale with 6 subscales(Attendings, Peers, Nurse, Patients, Directors and Students) was employed to measure the status quo of medical education , represented by professional ethics and communication skills, among 129 intern doctors in medical clinical college. Cronbach's alpha was used to evaluate the reliability of the scale,one-way ANOVA was used to compare the difference of score among different scorers,and t test and Mann-Whitney test were employed to compare scores be-tween male group and female group, 5-year class and 8-year class (The significance level was set at P<0.05). Results Cronbach' α coefficients were 0.878, 0.948, 0.914, 0.908, and 0.934 for six sub-scales and 0.964 for the general scale. There were significant differences in evaluation scale scores a-mong differ-ent evaluators(P<0.01). After being adjusted by weight index, the average scores of pro-fessional ethics and communication ability & interpersonal relationship were ( 92 . 52 ± 8 . 09 ) and (93.32±8.67) respectively. No differences was observed between male and female, 5-year class and 8-year class(P>0.05). Conclusions 360 degree evaluation scale has reasonable reliability and it can provide valuable references for future similar survey in China. Meanwhile, intern doctors exhibit rela-tively good performances in professional ethics and communication ability & interpersonal relationship in the present study.

OBJECTIVE To observe therapeutic efficacy and safety of transcatheter arterial chemoembolization (TACE) com-bined with high intensity focused ultrasound (HIFU) in the treatment of middle and advanced primary hepatocellular carcinoma (HCC). METHODS:76 patients with middle and advanced primary HCC were randomly divided into treatment group(36 cases) and control group(40 cases). Control group was given TACE alone,and treatment group was additionally given HIFU 2-3 weeks after TACE. Clinical efficacy,the content of alpha-fetoprotein(AFP)before and after operation,survival rate,survival period and ADR were compared between 2 groups. RESULTS:The efficiency rate and total effective rate of treatment group were 61.1% and 94.4%,which were significantly higher than those of control group(35.0%,77.5%),with statistical significance(P<0.05). The content of AFP in 2 groups decreased significantly after operation,with statistical significance(P<0.05);there also was statistical significance between 2 groups(P<0.05). Survival rate of treatment group was higher than that of control group 24 and 36 months after operation,with statistical significance (P<0.05). The median survival time was 11.3 months in treatment group and 9.2 month in control group,with no statistical difference(P>0.05). No obvious ADR was found in 2 groups. CONCLUSIONS:Com-pared with TACE alone,TACE combined with HIFU in the treatment of middle and advanced primary HCC can improve long-term survival rate and the short-term efficacy,with good safety.