Objective To summarize the technical measures in achieving the elimination of lymphatic filariasis in Tengzhou city. . Methods. To collect and analyze the materials on research and control of lymphatic filariasis in Tengzhou city during the disease elimination program over the 40 years.. Results . Following to the national criteria for the control and elimination of filariasis, efforts were made for epidemiological investigation, mass blood examination, and mass drug administration by taking diethylcarbamazine (DEC) medicated salt for the whole population. After the criteria of transmission interruption (basic elimination) of filariasis were met in 1974, re-examination and treatment for the cases with microfilaremia, and parasitological and entomological surveillance were conducted. In 1995, filariasis elimination in the whole city was declared. . Conclusion . Comprehensive measures focusing on the elimination of source of infection were proved effective for interrupting the transmission of filariasis. Unremitting surveillance was necessary for achieving the goal of elimination of filariasis.

Objective To evaluate the effectiveness of control and prevention of iodine deficiency disorders(IDD) in Xinjiang Production and Construction Corps. Methods According to the national requirement and the situation of Xinjiang Production and Construction Corps, thirty sampling units were selected by the“probability proportionate to size” method; one school was chosen in each sampling unit; forty children (half male half female) aged 8 - 10 years old were chosen in each school. Family salt samples were collected to detect salt iodine content, and the goiter was determined. Twelve children(half male half female) from the 40 children were selected; urine samples were collected to detect urinary iodine content. Twenty fifth-grade children in each school and five housewives around each school were selected, and the survey of health education knowledge was conducted. Salt iodine was measured using direct titration (GB/T 13025.7-1999);the volume of thyroid was detected by ultrasound ( WS 276-2007 ); urinary iodine was measured by arsenic Ce catalytic spectrophotometry method (WS/T 107-2006). Results A total of 1 195 household salt samples were tested. The mean of salt iodine was (30.91 ± 6.99)mg/kg;the coverage rate of iodized salt was 97.49%(1 165/ 1 195);the qualified rate of iodized salt was 98.54%(1 148/1 165); and the consumption rate of qualified iodized salt was 96.07%(1 148/1 195). Twelve hundred and twenty children aged 8-10 years old were examined;forty-two goiters were examined;and goiter rate was 3.44%. Four hundred and seven urine samples were tested, the median of urinary iodine was 235.31 μg/L;< 50 μg/L accounted for 1.47%(6/407); and 50 - < 100 μg/L accounted for 6.63%(27/407). The awareness rates of IDD health education knowledge of the fifth-grade students and housewives were 84.39%(1 519/1 800) and 84.44%(380/450), respectively. Conclusion The level of IDD control and prevention in Xinjiang Production and Construction Corps has been up to the national standard of eliminating IDD.

OBJECTIVEThis study aimed to evaluate the vascular endothelial growth factor (VEGF) expression and permeability of vascular endothelial cell under microvibration.

METHODSHuman umbilical vein endothelial cell (HUVEC) were cultured, randomly vibrated under low frequency of 0.2, 0.5, 2, 5 Hz, 30 min per day. The VEGF mRNA level was detected by Tagman probe real-time fluorescence quantitative polymerase chain reaction (PCR), and the VEGF protein expression level was detected by Western blot. The permeability of vascular endothelial cell was evaluated.

RESULTSCompared with the blank control group, the mRNA and protein expression level of VEGF were significantly increased under 0.2, 0.5 Hz thelial, and increase the permeability microvibration (P<0.05), and decreased under 2, 5 Hz microvibration (P<0.01). The vascular endothelial permeability in creased under 0.2, 0.5 Hz microvibration (P<0.01), whereas the permeability decreased under 2, 5 Hz microvibration (P<0.01).

CONCLUSION0.2-0.5 Hz microvibration can up-regulate the expression of VEGF mRNA and protein in vascular endothelial, and increase the permeability.

Blotting, Western ; Capillary Permeability ; physiology ; Endothelial Cells ; metabolism ; Endothelium, Vascular ; chemistry ; Humans ; Permeability ; Polymerase Chain Reaction ; RNA, Messenger ; analysis ; Umbilical Cord ; chemistry ; metabolism ; Up-Regulation ; Vascular Endothelial Growth Factor A ; analysis ; genetics ; physiology

Objective To investigate the strategies for building a high-level research talent team in a research-oriented hospital,based on the current situation of full-time research personnel and postdoctoral talent in a tertiary comprehensive hospital in Anhui Province.Methods Drawing on the dual-factor theory,a descriptive analysis was conducted to examine the construc-tion and practical outcomes of full-time research personnel and postdoctoral talent in the hospital.Issues were identified,and cor-responding recommendations were proposed.Results Over a three-year period,the growth rates of research achievements,in-cluding longitudinal projects,high-level publications,and patent authorizations,exceeded 100%.Disciplines with full-time re-search personnel showed significantly better research performance than those without.However,challenges were identified,inclu-ding a low proportion of full-time research personnel in the total staff(1.8%),imbalanced discipline development,and incom-plete external research support and internal incentive mechanisms.Conclusion The construction of full-time research personnel and postdoctoral talent plays a crucial role in enhancing the clinical research capacity and promoting high-quality development in hospitals.It is essential to continuously optimize incentive measures,coordinate health factors with motivating factors to achieve synergistic effects,and improve the level of talent development in research-oriented hospitals.

Objective:To investigate the application value of nectin-4 targeting radiotracer 68Ga-N188 in the diagnosis of pancreatic cancer. Methods:The prospective study was conducted. The clinicopathologic data of 16 patients diagnosed as pancreatic cancer on enhanced computed tomography (CT) who were admitted to the Peking University First Hospital from August to December 2022 were collected. There were 9 males and 7 females, aged (62±8)years. All patients underwent 18F-flurodeoxyglucose ( 18F-FDG) and 68Ga-N188 positron emission tomography (PET)/CT examination. Observation indicators: (1) distribution of 68Ga-N188 in different tissues and tumor primary lesion of patients; (2) expression of Nectin-4 and uptake of 68Ga-N188 in pancreatic cancer; (3) comparison of examination results between 68Ga-N188 and 18F-FDG PET/CT. Measurement data with normal distribution were represented as Mean± SD, and comparison between groups was conducted using the independent sample t test. Count data were described as absolute numbers or percentages. Results:(1) Distribution of 68Ga-N188 in different tissues and tumor primary lesion of patients. Results of PET/CT examination showed that in 1 hour after injection, the maximum standard uptake value (SUVmax) and mean standard uptake value (SUVmean) of 68Ga-N188 in fat, muscle, skin, and brain tissues of 16 patients were 0.40±0.16 and 0.25±0.09, 0.68±0.20 and 0.44±0.12, 0.39±0.14 and 0.28±0.11, 0.09±0.04 and 0.05±0.02, respectively. In the tissues of the esophagus, liver, spleen, and pancreas, the above indicators were 1.53±0.48 and 1.16±0.31, 1.49±0.45 and 0.91±0.30, 1.40±0.30 and 1.02±0.24, 1.24±0.31 and 0.96±0.25, respectively. In tumor primary lesion, the above indicators were 3.28±1.02 and 2.14±0.62, respectively, showing significant differences in SUVmax and SUVmean compared with pancreatic tissue ( t=8.03, 6.75, P<0.05). The tumor background ratio in tumor primary lesion based on SUVmax was 1.82±0.58. (2) Expression of Nectin-4 and uptake of 68Ga-N188 in pancreatic cancer. Results of immunohistochemical staining in 16 patients showed that there were 7 patients with high Nectin-4 expression and 9 patients with low Nectin-4 expression. Results of PET/CT examination showed that the SUVmax of 68Ga-N188 in tumor primary lesion of the 7 patients with high Nectin-4 expression and 9 patients with low Nectin-4 expression were 3.77±1.10 and 2.64±0.68, showing a significant difference between them ( t=2.64, P<0.05). The SUVmax of 18F-FDG in tumor primary lesion of the 7 patients with high Nectin-4 expression and 9 patients with low Nectin-4 expression were 6.73±3.24 and 6.43±3.45, showing no significant difference between them ( t=0.17, P>0.05). (3) Comparison of examination results between 68Ga-N188 and 18F-FDG PET/CT. Of the 16 patients, cases with positive results of tumor primary lesion on 68Ga-N188 and 18F-FDG PET/CT were 14 and 11, respectively, for the 14 pancreatic cancer patients diagnosed by postoperative histopathology. Among them, cases with positive results of tumor primary lesion on 68Ga-N188 and 18F-FDG PET/CT were 3 and 1 for the 3 pancreatic cancer patients receiving evaluation for chemotherapy. The SUVmax of 18F-FDG in tumor primary lesion of the 3 patients with chemotherapy and the 11 patients without chemotherapy were 2.80±0.69 and 6.97±2.11, showing a significant difference between them ( t=3.29, P<0.05). The SUVmax of 68Ga-N188 in tumor primary lesion of the 3 patients with chemotherapy and the 11 patients without chemotherapy were 3.38±1.12 and 2.93±0.50, showing no significant difference between them ( t=0.66, P>0.05). Cases with positive results of lymph node metastases in 68Ga-N188 and 18F-FDG PET/CT were 6 and 4, respectively, for the 6 pancreatic cancer patients diagnosed with lymph node metastases by postoperative histopathology, and the SUVmax of 68Ga-N188 and 18F-FDG in lymph node metastases were 2.25±1.12 and 4.02±1.27. Conclusion:68Ga-N188 PET/CT can be used for imaging diagnosis of tumor primary lesion and lymph node metastases of pancreatic cancer.