Objective:To learn about the characteristics of natural foci and the spatial distribution of mosquitoes and ticks in Yadong County, Tibet Autonomous Region (Tibet for short).Methods:The eco-geographical characteristics, demographic information, agricultural and animal husbandry data of the natural foci in Yadong County, Tibet were collected from the Yadong County 2020 statistical yearbook, vector data were collected from the Yadong County Center for Disease Control and Prevention, and the data of the meteorological station in Yadong County from 2010 to 2021 were collected from the World Weather Network. In July 2021, a total of 20 mosquito and tick sampling points were selected for field investigation according to the distribution characteristics of vegetation and animal husbandry of Yadong County. The light trap method was used to trap mosquitoes, and the manual inspection and flag dragging method were used to catch ticks. The spatial distribution characteristics of mosquitoes and ticks were analyzed.Results:The natural epidemic foci in Yadong County, Tibet, were high in the north and low in the south, with an elevation difference of about 5 000 m. It was rich in water resources, and the average runoff of Yadong River was 20.1 m 3/s. The climate in the north was cold and dry, and the south was mild and humid. From 2010 to 2021, the annual average station air pressure in Yadong County was 452.8 mmHg (1 mmHg = 0.133 kPa), the maximum monthly average temperature, precipitation and relative humidity of air were 8.7 ℃, 134.5 mm and 81.3%, respectively, all in July. A total of 6 897 diptera insects were attracted by the light trap method, all of which were non-blood-sucking mosquitoes. The total density was 163.77 pieces/(lamp·h), the dominant population was Muscaridae, accounting for 89.69% (6 186/6 897). In different sampling areas, Xiayadong Township collected the most mosquitoes, accounting for 67.17% (4 633/6 897); the others were Yadong County and Shangyadong Township, accounting for 27.36% (1 887/6 897) and 5.47% (377/6 897), respectively. A total 2 014 host animals were examined, and 23 parasitic ticks were caught, of which 20 were of the genus Ixodes and 3 were of the genus Haemophilus. No free ticks were caught in all ticks sampling points. Conclusions:The climate and ecological environment of the natural foci in Yadong County, Tibet have obvious vertical gradient. Mosquitoes and ticks are active, but the density is not high, the density of mosquitoes is generally high in the south and low in the north.

【Objective】 To explore the safety and efficacy of a modified one-piece posterior laparoscopic total nephroureterectomy with cystic sleeve resection in the treatment of upper urinary tract uroepithelial carcinoma (UTUC). 【Methods】 A total of 24 patients treated during Jan. and Jun. 2022 were involved, including 16 males and 8 females, aged 62 to 90 (average 73) years. The UTUC was in the left side in 15 cases, and in the right side in 9 cases. There were 10 cases of renal pelvis tumor, 6 cases of upper ureteral tumor and 8 cases of lower ureteral tumor. 【Results】 All operations were successful without conversion to open surgery. The operation time ranged from 60 to 100 minutes, average (71.25±9.80) minutes. The intraoperative bleeding volume was 20 to 200 mL, average (30.03±8.13) mL. No significant intraoperative or postoperative complications occurred. The postoperative hospital stay was 4 to 7 days, average (5.83±1.44) days. Bladder perfusion chemotherapy was performed after surgery. 【Conclusion】 The modified one-piece posterior laparoscopic total nephroureterectomy plus cystic sleeve resection for UTUC is an effective and feasible procedure with satisfactory tumor control, which is worth further promotion in clinical practice.

【Objective】 To investigate the efficacy and safety of single position transabdominal and extraperitoneal laparoscopic radical nephroureterectomy in the treatment of upper tract urothelial carcinoma (UTUC). 【Methods】 Clinical data of 31 UTUC cases treated in our hospital during Nov.2018 and Jun.2022 were retrospectively analyzed, including 11 tumors in the right side, and 20 in left side. There were 14 cases of renal pelvic carcinoma, 16 cases of ureter carcinoma, and 1 case of renal pelvic carcinoma plus ureter carcinoma. 【Results】 All surgeries were successfully performed without conversion to open surgery. The mean operation time was (81.45±19.80) min, and the estimated blood loss was (69.03±24.13) mL. No serious perioperative complications were observed. The average postoperative hospital stay was (6.13±2.44) d, and the median follow-up was 28 (3.0-49.0) months. At the last follow-up, 2 patients died, 3 had recurrence, but no contralateral recurrence was observed. 【Conclusion】 Single position transabdominal and extraperitoneal laparoscopic radical nephroureterectomy is safe, effective and feasible in the treatment of UTUC. It is worth clinical popularization.

【Objective】 To explore the correlation between CSAG1 expression and the prognosis and tumor-infiltrating lymphocytes in renal clear cell carcinoma (RCCC), and to predict the survival and tumor progression. 【Methods】 The gene expression profiles and clinical information of CSAG1 were downloaded from the Cancer Genome Atlas (TCGA). Based on the differential mRNA expression, GO annotation and KEGG pathway analysis were performed. The relationship between CSAG1 and tumor immune infiltration was assessed with Tumor Immunoassay Resource (Timer 2.0) database. The mRNA expression of CSAG1 in human RCCC specimens was validated with qRT-PCR. 【Results】 CSAG1 expression was significantly higher in RCCC tissues than in normal tissues (P<0.05). The qRT-PCR results revealed that the mRNA level of CSAG1 was consistent with that predicted by bioinformatic analysis. The KEGG analysis and GO annotation indicated high GSAG1 expression in RCCC was related to transmembrane transport, tricarboxylic acid cycle and lysosome. CSAG1 expression was positively related to the infiltration of pDC, aDC, CD8⁺ T cells, cytotoxic cells, TFH, TH1 cells, Tem, NK CD56^dm cells, Treg and T cells, but negatively correlated with macrophage infiltration. 【Conclusion】 CSAG1 may be associated with poor prognosis of RCCC and become a potential immunotherapy target.

In this study, we explored the neural mechanism underlying impaired stereopsis and possible functional plasticity after strabismus surgery. We enrolled 18 stereo-deficient patients with intermittent exotropia before and after surgery, along with 18 healthy controls. Functional magnetic resonance imaging data were collected when participants viewed three-dimensional stimuli. Compared with controls, preoperative patients showed hypoactivation in higher-level dorsal (visual and parietal) areas and ventral visual areas. Pre- and postoperative activation did not significantly differ in patients overall; patients with improved stereopsis showed stronger postoperative activation than preoperative activation in the right V3A and left intraparietal sulcus. Worse stereopsis and fusional control were correlated with preoperative hypoactivation, suggesting that cortical deficits along the two streams might reflect impaired stereopsis in intermittent exotropia. The correlation between improved stereopsis and activation in the right V3A after surgery indicates that functional plasticity may underlie the improvement of stereopsis. Thus, additional postoperative strategies are needed to promote functional plasticity and enhance the recovery of stereopsis.
Humans ; Exotropia/surgery* ; Depth Perception/physiology* ; Strabismus/surgery* ; Oculomotor Muscles/surgery*

Objective To explore the effect of low molecular weight heparin calcium on coagulation function and platelet(PLT)in patients before and after anterolateral thigh flap transplantation.Methods Fifty patients with skin and soft tissue defects of hands and feet treated in Wuxi Ninth Hospital and Jiujiang No.1 People's Hospital from January to December 2022 were selected as the study objects.They were divided into observation group(26 cases)and control group(24 cases)according to random number table method.Patients in observation group received low molecular weight heparin calcium 12h before surgery,and continued to receive routine treatment once a day after surgery.Patients in control group began to use low molecular weight heparin calcium routinely 4h after surgery,once a day.The coagulation function and PLT before and after surgery were compared between two groups.Results There were no significant differences in incidences of vascular crisis and skin flap necrosis between two groups(P>0.05).Five patients in observation group received intraoperative or postoperative blood transfusion,which was excluded in further analysis.On first day and third day after surgery,fibrinogen(FIB)and PLT in two groups were significantly higher than those before surgery,and thrombin time(TT)was significantly shorter than that before surgery(P<0.05).On third day after surgery,activated partial thromboplastin time(APTT)and prothrombin time(PT)in observation group were significantly longer than those before surgery(P<0.05).Before surgery,first day and third day after surgery,there were no significant differences in FIB,APTT,PT and TT between two groups(P>0.05).On third day after surgery,PLT of observation group was significantly higher than that of control group(P<0.05).Conclusion Both FIB and PLT were higher after surgery regardless of the use of low molecular weight heparin calcium before and after surgery,and FIB and PLT were more significantly higher in patients treated 12h before surgery.

Objective:To understand the pathogen infection and epidemiological characteristics of children with diarrhea in Tianjin.Methods:Stool samples from 1 466 children with diarrhea in Tianjin Children's Hospital from August 2017 to July 2018 were collected, and all samples were tested for five intestinal-related pathogens (norovirus, rotavirus, Clostridium difficile toxin, adenovirus, and astrovirus). Results:Among the 1 466 samples, 627 samples were positive for nucleic acid detection of intestinal pathogens, with a positive rate of 42.8%. The detection rate of norovirus was the highest (26.3%), followed by rotavirus (15.3%), Clostridium difficile toxin (4.6%), adenovirus (4.1%), and astrovirus (1.84%). The infection has obvious seasonality. The positive detection rates of the five pathogens were similar among children of different sexes, and only the positive detection rates of norovirus and rotavirus were statistically significant among different ages ( P<0.05). There were 110 cases of mixed infection, and the mixed infection of norovirus and rotavirus was the most common, with a total of 37 cases. Conclusions:The pathogen spectrum of infant infectious diarrhea in Tianjin is complex and diverse, and the main pathogens are norovirus and rotavirus.

Objective:To investigate the molecular epidemiologic and clinical characteristics of norovirus (NoV) in hospitalized children with acute gastroenteritis (AGE) in Tianjin to provide theoretical basis for clinical diagnosis and treatment.Methods:Fecal specimens were collected from children with AGE in Tianjin Children′s Hospital from August 2017 to July 2020. NoV was detected by real-time fluorescence reverse transcription-polymerase chain reaction (RT-PCR). Partial sequence of the capsid protein VP1 of positive samples was amplified by conventional RT-PCR. The products were sent for sequencing and genotyping based on the sequence. As the same time, the clinical symptoms were compared among children infected with different NoV genotypes.Results:Among the 6 432 specimens, 1 703 (26.5%) were positive for NoV. Sequence analysis showed that 761 identified NoV strains could be divided into 7 genotypes. Genotypes GII.4, GII.3, GII.2, GII.17, GII.1, GII.13 and GII.6 accounted for 55.5% (422/761), 36.7% (279/761), 4.9% (37/761), 0.9% (7/761), 0.8% (6/761), 0.8% (6/761) and 0.5% (4/761), respectively. All of the GII.4 belonged to GII.4 Sydney 2012. There was also a significant difference in the seasonal distribution of children infected with GII.4 and other genotypes ( χ2=103.53, P<0.001). Children infected with GII.4 NoV were more likely to have diarrhea, vomiting and dehydration ( χ2=8.42, P=0.004; χ2=20.39, P<0.001; χ2=4.99, P=0.025). Conclusions:GII.4 and GII.3 were mainly genotypes of NoV infection in Tianjin from 2017 to 2020 and genotypes were diverse. In addition, children with GII.4 NoV were more likely to suffer from diarrhea, vomiting and dehydration.

Objective:To be aware of the needs of the young students for nuclear and radiation science popularization, and to provide scientific basis for accurate science popularization.Methods:A simple random sampling method was used to select 1 primary school, 5 middle schools and 2 universities in the Beijing-Tianjin-Hebei region in December 2020. Questionnaires were distributed through teachers. In addition, convenience sampling method was used to distribute questionnaires in friend circle and other areas to expand the survey scope, with a total of 1 345 respondents. SPSS was used to conduct statistical analysis on the basic information of the respondents, the understanding and concern of nuclear and radiation science popularization and the demand for nuclear and radiation science popularization.Results:A total of 1 120 valid questionnaires were collected, of which 52.4% mainly remained at the conceptual level for the cognition of radiation, 52.2% occasionally paid attention to nuclear and radiation science popularization, 65.3% and 41.3% paid attention to life reference and hobbies, respectively. Radiation protection and its sources and effects received high concern, accounting for 72.6% and 68.3% respectively. Illustration and short video were popular science forms of young students, making up 45.7% and 44.3%, respectively. The students of different genders differed in radiation cognition, degree of concern, purpose of concern and content demand for radiation protection science popularization, and the differences are statistically significant( χ2=10.017, 26.859, 56.237, 17.305, P<0.05). Conclusions:Nuclear and radiation science popularization should consistent with the law of public demand, accurately locate the demand characteristics of young students, and consider the characteristics of different genders, concerns over radiation protection, treatment and damage knowledge from the point of life and fun, so as to improve the public′s attention, enhance the national nuclear science culture, and create a good nuclear safety culture atmosphere.

Objective:In order to provide guidance strategies for the establishment and application of self-report inventory in nursing research, we discussed the mental response model regarding tested nurses during its application.Methods:From September to November 2020, based on the grounded theory, we conducted semi-structured interviews for 9 tested nurses, who were from Qilu Hospital of Shandong University and Jinan Central Hospital, and data were analyzed to extract the psychological response topic.Results:A response model for tested nurses, which formed three psychological responses that factored in exam motivation, exam situation and individual will was built.Conclusion:The present study reveals the correlations among exam motivation, exam situation, individual will and psychological responses during the application of self-report inventory on tested nurses, which could provide references for the establishment and application of self-report scale in nursing research.