Abstract: Objective　To understand the current epidemic status of echinococcosis in non-endemic areas of Xinjiang and provide a scientific basis for the local prevention and control of echinococcosis. Methods A cross-sectional study was conducted to investigate the prevalence of echinococcosis in non-epidemic areas of Xinjiang: Tianshan District, Shayibake District, Shule County in Kashgar Prefecture, and Hotan City in Hotan Prefecture of Urumqi City. From each surveyed county (city/district), three townships with higher numbers of reported echinococcosis cases from 2016 to 2020 were selected. Subsequently, three administrative villages with the highest number of reported echinococcosis cases were chosen as survey points from each township. A total of 9 administrative villages were investigated in each county (city/district). In the surveyed village, abdominal B-ultrasound screening was carried out for permanent residents aged three years and older, with suspected cases further tested for echinococcosis antibodies in blood using ELISA. In each survey village, at least 20 fecal samples from domestic dogs and, if present, at least 10 fecal samples from stray dogs were collected and tested for Echinococcus antigens. In the designated slaughterhouse of the surveyed townships, a random sample of 100 sheep or cattle raised in the township was selected on the spot, and their organs were examined by naked eyes, and the suspected diseased organs were detected by PCR. Results Among the four survey counties (cities/districts), 6 020 people underwent ultrasound screening for echinococcosis, with 7 positive cases detected, resulting in a detection rate of 0.12% (7/6 020). The detection rates of Tianshan District, Shayibake District, Shule County, and Hotan City were 0.26 % (4/1 512), 0.14 % (2/1 475), 0 (0/1 499), and 0.07% (1/1 534), respectively, all of which were cystic echinococcosis patients. A total of 1 474 dog fecal samples were detected, with an infection rate of 0.68% (10/1 474). The infection rates for domestic dogs and stray dogs were 0.84% (9/1 076) and 0.25% (1/398) respectively; there was no statistically significant difference between the two (χ2=0.74, P>0.05). A total of 2 095 livestock were surveyed, with an overall infection rate of 2.67% (56/2 095). The infection rates for sheep and cattle were 2.94% (46/1 564) and 1.88% (10/531) respectively, with a statistically significant difference between the two (χ2=6.99, P<0.01). Conclusions No human or dog infections were found in Shule County, which needs to be confirmed by in-depth epidemiological investigation and analysis of previously reported cases. Echinococcosis was found among humans, dogs, and livestock in Tianshan District, Shayibake District, and Hotan City, providing preliminary evidence of circulation history and transmission conditions of echinococcosis. It should be comprehensively considered to determine whether or not to incorporate into the epidemiologic area of echinococcosis to carry out systematic prevention and control.

BACKGROUND:There are several reports about the application of fresh bone marrow aspirate being injected directly to repair partial ligament injury, but the application about fresh bone marrow aspirate directly being planted on scaffolds to build tissue-engineered ligament is rarely mentioned.
OBJECTIVE:To evaluate the feasibility of applying fresh bone marrow aspirate planted directly on scaffolds to construct tissue-engineered ligament
METHODS:We constructed fibroin fiber/smal intestinal submucosa composite scaffold, then planting fresh bone marrow directly to built bone marrow seeding group and planting seed cel s (bone marrow mesenchymal stem cel s) on the scaffold to built cel seeding group. The control group had no treatment. After that, we detected the density of cel adhesion, cel proliferation ability and extracel ular matrix secretion. Then, the composite in the bone marrow seeding group was implanted into the broken anterior cruciate ligament in rabbits, and material biocompatibility in vivo was evaluated after 12 weeks.
RESULTS AND CONCLUSION:After 4 hours of incubation, bone marrow seeding group was significantly higher than the cel seeding group in cel adhesion density and proliferation rate (P<0.05). Bone marrow seeding group and cel seeding group showed higher type I, III col agen secretion compared with the control group (P<0.05), but the col agen secretion of bone marrow seeding group and cel seeding group showed no significant difference. Composite cel scaffold implantation in vivo did not cause fatal immune rejection and severe inflammatory reaction, and no significant ligament regeneration and vascularization occurred. These findings indicate that fresh bone marrow aspirate can be seeded directly on scaffolds to construct tissue-engineered ligament, and the short-term biocompatibility in vivo is good.

Objective:To investigate the safety and protection level of radiological treatment in the CT modules in the makeshift hosptials in Wuhan during the prevention and treatment of COVID-19 cases.Methods:The layout of the CT modules in makeshift hospitals, radiological protection facilities and personal protective equipment were investigated. Based on the national standards, the CT dose index was estimated and the radiological protection level at the CT modules were measured.Results:The layout of the CT modules in makeshift hospitals is reasonable, with well-equipped radiological protection facilities. Of 23 CT modules, 20 were up to standards with acceptability of 87.0%. The other three were unqualified each with 1 detection points having values in excess of the national standards. Which, after being modified immediately reached the national standards. In addition, CT dose index for 7 CT modules were estimated, with CTDI W within ±7.5%. Conclusions:The CT modules in Wuhan meet the requirements of radiological safety and protection during the prevention and treatment of COVID-19 cases.

Objective:To explore status and influencing factors of medication deviation in elderly patients with brain infarction during the hospital-family transition, and to explore the relationship between medication deviation and adverse drug events.Methods:From November 2021 to May 2022, 218 elderly patients with brain infarction from Neurology Department of the First Affiliated Hospital of Chengdu Medical College were selected as the research objects by the convenience sampling method. General data questionnaire and Self-Efficacy for Appropriate Medication Use Scale were used to investigate patients. One month after discharge, patients were investigated by telephone using Medication Discrepancy Tool and Morisky Medication Adherence Scale with Eight-Item, and the incidence of adverse drug events was collected. Logistic regression analysis was used to explore the influencing factors of medication deviation. Spearman correlation analysis was used to investigate the correlation between adverse drug events and medication deviation. A total of 218 questionnaires were distributed in this study, and 207 valid questionnaires were effectively recovered, with an effective recovery rate of 95.0%.Results:The incidence of medication deviation in elderly patients with brain infarction was 48.8% (101/207) . Logistic regression analysis results showed that hypertension, stroke severity, medication compliance and medication quantity were the influencing factors of medication deviation ( P<0.05) . Spearman correlation analysis results showed that adverse drug events were positively correlated with medication deviation ( r=0.234, P<0.01) . Conclusions:The incidence of medication deviation in elderly patients with brain infarction during the hospital-family transition was higher. Hypertension, stroke severity, medication compliance and medication quantity were the influencing factors of medication deviation. Medical staff should formulate targeted intervention measures based on the influencing factors of medication deviation, so as to reduce the incidence of medication deviation.

Objective:To cultivate human-derived prostate cancer (PCa) cells via conditional reprogramming cell (CRC) technology, and establish individualized cell bank for PCa research in vitro.Methods:We obtained three fresh PCa tissue samples from different patients between January 2019 and April 2019. Then each sample was divided into two parts. One was used for cancer nature confirmation by intraoperative biopsy. Another part was sent to the laboratory and digested into single primary cancer cells with 0.25% EDTA enzyme for CRC technology. The details were described as followed: 1. The primary PCa cells were co-cultured with 3T3-J2 cells irradiated by 30 Gy (feeder cells) in conditioned medium, and observed for the growth of cell clones, 2. The feeder cells were removed by 0.25% EDTA trypsin for 1 minute before primary PCa cells digested for passage. All primary PCa cells were validated by multiple experiments such as immunofluorescence, immunohistochemistry, immunoblotting and fluorescence in situ hybridization (FISH).Results:Total three cases of human-derived PCa cell lines were successfully established during 15days through CRC technology. All those primary PCa cells could be steadily and continuously passaged, which also expressed AR, CK5, CK18, P504s and PSA. FISH demonstrated that each cell line harbored≥1.6% TMPRSS2/ERG fusion and conformed to the features of PCa.Conclusion:CRC technology can be used for stable and continuous PCa cell culture in vitro.

Objective:To investigate the normal reference values of spinal bone mineral density measured by quantitative computed tomography (QCT) and the differences of bone mineral density (BMD) in different regions of in Chinese adult males.Methods:Men who underwent low-dose CT lung scan for cancer screening in regions of Northeast, North, East, South, Central and Southwest of China from January 2018 to December 2019 were selected. And the lumbar vertebrae BMD values in the male subjects were measured by the QCT system (Mindways Software, Inc.). The mean BMD values and their decline rates were calculated at an age interval of 10 years, and the prevalence of osteoporosis was calculated according to the American College of Radiology spine QCT osteoporosis diagnostic criteria.Results:A total of 50 682 males with a mean age of (50.22±12.79) years (ranged 20 to 98 years) were included in this study. The peak BMD of (173.11±28.56) mg/cm 3 in the healthy Chinese adult male population appeared in the age group of 20 to 29 years and then declined with age. Before the age of 70 years, the BMD was relatively higher in males in South China, and it was lower in Central China and Southwest China, and it was intermediate in Northeast, North and East of China, with statistically significant differences. There was no significant differences in BMD in the males in the two age groups of 70 to 79 years and 80 and older among the regions in China. The overall decline rate of spinal BMD in Chinese males under QCT was about 46.92% over the lifetime, and it declined obviouslyin the 40-49 age group. The overall prevalence of osteoporosis in Chinese male population aged 50 years and above was approximately 11.42%, with the highest prevalence in Southwest China and Central China (14.72% and 13.87%, respectively) and the lowest in North China and South China (8.53% and 7.71%, respectively). Conclusions:A reference of lumbar spine BMD values for healthy males in China based on QCT is established. BMD values were highest in South China and Lowest in Central China.