ObjectiveTo clarify the repair effect of Mume Fructus on the intestinal mucosal epithelial barrier in the mouse model of inflammatory bowel disease （IBD） and explore the repair mechanism. MethodsThirty-six male C57BL/6 mice were randomly assigned into six groups： normal， model， low-， medium-， and high-dose （200， 400， and 800 mg·kg^-1） Mume Fructus， and sulfasalazine （300 mg·kg^-1）. Except the normal group， the rest groups had free access to 2% dextran sulfate sodium （DSS） solution for seven days to establish the IBD model， followed by a seven-day drug intervention. The body weight change and disease activity index （DAI） were recorded. After the last administration， spleen and colon tissue samples were collected to analyze the differences in colon length and spleen index. Hematoxylin-eosin staining was used to observe the morphology of the colon tissue. The level of diamine oxidase （DAO） in the serum was measured by the DAO assay kit. Immunohistochemistry was employed to determine the expression of tight junction proteins such as Claudin-1， Occludin， and zonula occludens-1 （ZO-1） in the colon tissue. Real-time PCR was performed to measure the mRNA levels of tumor necrosis factor-α （TNF-α） and interleukin-1β （IL-1β） in the colon tissue. Finally， Western blot was employed to determine the protein levels of mitogen-activated protein kinase kinase （MEK）， extracellular signal-regulated kinase （ERK）， phosphorylated （p）-MEK， and phosphorylated ERK in the colon tissue. ResultsCompared with the normal group， the model group exhibited decreases in body weight and colon length （P<0.01）， increases in DAI， spleen index， and serum DAO level （P<0.01）， damaged colonic epithelium and goblet cells， and obvious infiltration of inflammatory cells. In addition， the model group exhibited higher positive expression of Claudin-1， Occludin， and ZO-1 （P<0.01）， higher mRNA levels of TNF-α and IL-1β （P<0.01）， and higher protein levels of p-MEK and p-ERK （P<0.05， P<0.01） than the normal group. However， sulfasalazine and three doses of Mume Fructus markedly decreased the body weight and DAI （P<0.05）， recovered the colon length and spleen index， alleviated colon tissue damage， lowered the level of DAO in the serum （P<0.01）， and down-regulated the mRNA levels of TNF-α and IL-1β （P<0.01） and the protein levels of p-MEK and p-ERK （P<0.05）. Sulfasalazine and low- and medium-dose Mume Fructus increased the positive expression of Occludin， Claudin-1， and ZO-1 （P<0.05， P<0.01）. Furthermore， high-dose Mume Fructus elevated the protein expression of Occludin （P<0.05）. ConclusionMume Fructus can restore the expression of intestinal epithelial tight junction proteins by inhibiting the phosphorylation of proteins in the MEK/ERK signaling pathway and down-regulating the levels of TNF-α and IL-1β， thus repairing the intestinal mucosal barrier in the mouse model of IBD.

Objective:To investigate the mechanism by which formononetin combined with platelet-rich plasma (PRP) enhances the proliferation and differentiation of osteoblasts.Methods:Rat osteoblasts ROS17/2.8 were cultured in vitro and treated with formononetin (10, 20, 40 μmol/L) combined with PRP. Cells were also intervened with G15 (a G protein-coupled estrogen receptor inhibitor) and Super-TDU [a Yes-related protein (YAP) inhibitor]. Cell proliferation viability was detected using the cell counting kit-8 (CCK-8) assay; alkaline phosphatase (ALP) activity was measured using an ALP assay kit; protein expression of G protein-coupled estrogen receptor (GPER) and p-YAP was detected by Western blot; and YAP subcellular distribution was analyzed by fluorescence assay.Results:Formononetin (20 μmol/L) synergistically enhanced the PRP-induced proliferation and ALP activity of osteoblasts (all P<0.05). Compared with the control group, formononetin significantly up-regulated GPER protein expression and down-regulated p-YAP protein expression (all P<0.01), with the most pronounced effects observed at 20 μmol/L. Formononetin (20 μmol/L) induced nuclear accumulation of YAP protein in osteoblasts. Pretreatment with G15 or Super-TDU reversed the synergistic effect of formononetin on PRP, and both the cell proliferation rate and ALP activity were lower than those in the PRP+ formononetin group (all P<0.01). Conclusions:Formononetin enhances the PRP-induced proliferation and differentiation of osteoblasts through the GPER/YAP signaling pathway.

Objective:To investigate the mechanism by which formononetin combined with platelet-rich plasma (PRP) enhances the proliferation and differentiation of osteoblasts.Methods:Rat osteoblasts ROS17/2.8 were cultured in vitro and treated with formononetin (10, 20, 40 μmol/L) combined with PRP. Cells were also intervened with G15 (a G protein-coupled estrogen receptor inhibitor) and Super-TDU [a Yes-related protein (YAP) inhibitor]. Cell proliferation viability was detected using the cell counting kit-8 (CCK-8) assay; alkaline phosphatase (ALP) activity was measured using an ALP assay kit; protein expression of G protein-coupled estrogen receptor (GPER) and p-YAP was detected by Western blot; and YAP subcellular distribution was analyzed by fluorescence assay.Results:Formononetin (20 μmol/L) synergistically enhanced the PRP-induced proliferation and ALP activity of osteoblasts (all P<0.05). Compared with the control group, formononetin significantly up-regulated GPER protein expression and down-regulated p-YAP protein expression (all P<0.01), with the most pronounced effects observed at 20 μmol/L. Formononetin (20 μmol/L) induced nuclear accumulation of YAP protein in osteoblasts. Pretreatment with G15 or Super-TDU reversed the synergistic effect of formononetin on PRP, and both the cell proliferation rate and ALP activity were lower than those in the PRP+ formononetin group (all P<0.01). Conclusions:Formononetin enhances the PRP-induced proliferation and differentiation of osteoblasts through the GPER/YAP signaling pathway.

OBJECTIVE: To study the trend of surgical type, surgical procedure and etiological distribution of upper urinary tract repair in recent 10 years. METHODS: The preoperative and perioperative variables and follow-up data of upper urinary tract reconstruction surgery in RECUTTER (Reconstruction of Urinary Tract: Technology, Epidemiology and Result) database from 2010 to 2021 were searched, collected and analyzed. The surgical type, surgical procedure, duration of hospitalization, time of operation, incidence of short-term complications, and proportion of the patients undergoing reoperations were compared between the two groups of 2010-2017 period and 2018-2021 period. RESULTS: A total of 1 072 patients were included in the RECUTTER database. Congenital factors and iatrogenic injuries were the main causes of upper urinary tract repair. Among them, 129 (12.0%) patients had open operation, 403 (37.6%) patients had laparoscopic surgery, 322 (30.0%) patients had robot-assisted laparoscopic surgery and 218 (20.3%) patients had endourological procedure. In the last decade, the total number of surgeries showed a noticeable increasing annual trend and the proportion of robot-assisted laparoscopic surgery in 2018-2021 was significantly higher than that in 2010-2017 (P < 0.001). The 1 072 patients included 124 (11.6%) cases of ileal ureter replacements, 440 (41.1%) cases of pyeloplasty, 229 (21.4%) cases of balloon dilation, 109 (10.2%) cases of ureteral reimplantation, 49 (4.6%) cases of boari flap-Psoas hitch surgery, 60 (5.6%) cases of uretero-ureteral anastomosis, 61 (5.7%) cases of lingual mucosal onlay graft ureteroplasty or appendiceal onlay flap ureteroplasty. Pyeloplasty and balloon dilatation had been the main types of surgery, while the proportion of lingual mucosal onlay graft ureteroplasty plus appendiceal onlay flap ureteroplasty had increased significantly in recent years (P < 0.05). In addition, the time of operation was significantly increased (P < 0.05) after 2018, which was considered to be related to the sharp increase in the proportion of robot-assisted laparoscopic surgery. We found that minimally invasive surgery (endourological procedure and robot-assisted laparoscopic surgery) as an independent risk factor (P=0.050, OR=0.472) could reduce the incidence of short-term post-operative complications. CONCLUSION We have justified the value of the RECUTTER database, created by the Institute of Urology, Peking University in data support for clinical research work, and provided valuable experience for the construction of other multi-center databases at home and abroad. In recent 10 years, we have observed that, in upper urinary tract reconstruction surgery, the surgery type tends to be minimally invasive and the surgery procedure tends to be complicated, suggesting the superiority of robot-assisted laparoscopic surgery.
Humans ; Laparoscopy/methods* ; Retrospective Studies ; Robotic Surgical Procedures ; Treatment Outcome ; Ureter/surgery* ; Ureteral Obstruction/surgery* ; Urologic Surgical Procedures/methods*

Strengthening clinical research is an inevitable requirement for expediting the development of the medical and healthcare services, as well as enhancing the capability of the hospitals in China. On the basis of sufficient argumentation of the significance and the internal and external environment of developing clinical research according to structure-conduct-performance analysis model, Henan Cancer Hospital set the aim of transforming from clinical hospital to clinical research hospital. By constructing a high-level phase Ⅰ clinical trials center, establishing the department of clinical research management, promoting the collaborative innovation and cooperation among medical institutions, research institutions, and enterprises, and developing the accessory clinical trial management system, Henan Cancer Hospital has turned abundant patient resources into advantages of clinical research. The quality and quantity of clinical trials have been elevated significantly, which could provide strong impetus for hospital′s discipline construction and high-quality development.

Objective:To evaluate the compliance of colonoscopy screening and the detection rate of colorectal lesions with colonoscopy in urban areas of Henan province from 2013 to 2019.Methods:The study objects were derived from the Cancer Screening Program in Urban Henan Province, China. From October 2013 to October 2019, 282 377 residents, who had lived in the local area for more than three years, were recruited from Zhengzhou, Zhumadian, Anyang, Luoyang, Nanyang, Jiaozuo, Puyang and Xinxiang. The cancer risk assessment questionnaire was used to collect basic demographic characteristics, eating habits, living environment and habits, psychology and emotions, past disease history and family history of cancer, and women′s physiological and reproductive history. The cancer risk assessment model was used for evaluating the risk of colorectal cancer. The data related to colonoscopy screening was obtained from the participating hospitals. Chi-square test was used to analyze the compliance rate among different groups.Results:The 282 377 subjects were (55.26±8.68) years old, of which 44.80% (126 505) were males, and 67.63% (190 694) had junior/senior/tertiary education background. A total of 39 834 (14.11%) subjects were assessed to be at high risk for colorectal cancer, of which 7 454 took the following colonoscopy screening, yielding a participation rate of 18.71%. The screening rate was higher in those aged 50 to 54 (20.42%) and 55 to 59 (20.43%) years, and lowest in those aged 70 years and older (12.30%) ( P<0.001). A total of 17 colorectal cancer cases were detected, with a detection rate of 0.23% (17/7 454). Conclusion:Colonoscopy as a means of screening for colorectal cancer is helpful for early detection of colorectal lesions, but the participation rate is poor.

Objective:To evaluate the compliance rate and its impact factors of liver cancer screening for high-risk groups in urban areas of Henan Province from 2013 to 2019.Methods:Residents of 40-74 years old in 8 cities of Henan province were selected to investigate the risk factors and liver cancer risk assessment. Subjects with high risk of liver cancer received AFP combined ultrasonography for screening. Chi-square tests were used to compare the differences in liver cancer screening participation rates between groups. Multivariate logistic regression models were applied to explore the potential factors correlating to the compliance of liver cancer screening.Results:Overall, 3 6781 participants who met the inclusion criteria were included in this analysis, and 17 241 of them took the following liver cancer screening, yielding a participation rate of 46.87%. The participation rate varied greatly across cities, ranging from 62.50% to 38.59%. Moreover, the participation rate varied greatly across periods, ranging from 52.77% in 2014-2015 to 38.14% in 2013-2014. The multivariate Logistic regression analyses showed that: female, older, high education degree, cigarette and alcohol intake, infrequent physical exercise, chronic hepatitis B, chronic hepatitis C, fatty liver, gallstones and a family history of liver cancer were inclined to accept liver cancer screening ( P<0.05). Conclusions:The overall participation rate of liver cancer screening among high-risk population is less than 50% in urban areas of Henan Province. Implement of effective interventions targeting the specific high-risk populations might improve the overall compliance rate of liver cancer screening in the future.

Objective:To evaluate the compliance of colonoscopy screening and the detection rate of colorectal lesions with colonoscopy in urban areas of Henan province from 2013 to 2019.Methods:The study objects were derived from the Cancer Screening Program in Urban Henan Province, China. From October 2013 to October 2019, 282 377 residents, who had lived in the local area for more than three years, were recruited from Zhengzhou, Zhumadian, Anyang, Luoyang, Nanyang, Jiaozuo, Puyang and Xinxiang. The cancer risk assessment questionnaire was used to collect basic demographic characteristics, eating habits, living environment and habits, psychology and emotions, past disease history and family history of cancer, and women′s physiological and reproductive history. The cancer risk assessment model was used for evaluating the risk of colorectal cancer. The data related to colonoscopy screening was obtained from the participating hospitals. Chi-square test was used to analyze the compliance rate among different groups.Results:The 282 377 subjects were (55.26±8.68) years old, of which 44.80% (126 505) were males, and 67.63% (190 694) had junior/senior/tertiary education background. A total of 39 834 (14.11%) subjects were assessed to be at high risk for colorectal cancer, of which 7 454 took the following colonoscopy screening, yielding a participation rate of 18.71%. The screening rate was higher in those aged 50 to 54 (20.42%) and 55 to 59 (20.43%) years, and lowest in those aged 70 years and older (12.30%) ( P<0.001). A total of 17 colorectal cancer cases were detected, with a detection rate of 0.23% (17/7 454). Conclusion:Colonoscopy as a means of screening for colorectal cancer is helpful for early detection of colorectal lesions, but the participation rate is poor.

Objective:To evaluate the compliance rate and its impact factors of liver cancer screening for high-risk groups in urban areas of Henan Province from 2013 to 2019.Methods:Residents of 40-74 years old in 8 cities of Henan province were selected to investigate the risk factors and liver cancer risk assessment. Subjects with high risk of liver cancer received AFP combined ultrasonography for screening. Chi-square tests were used to compare the differences in liver cancer screening participation rates between groups. Multivariate logistic regression models were applied to explore the potential factors correlating to the compliance of liver cancer screening.Results:Overall, 3 6781 participants who met the inclusion criteria were included in this analysis, and 17 241 of them took the following liver cancer screening, yielding a participation rate of 46.87%. The participation rate varied greatly across cities, ranging from 62.50% to 38.59%. Moreover, the participation rate varied greatly across periods, ranging from 52.77% in 2014-2015 to 38.14% in 2013-2014. The multivariate Logistic regression analyses showed that: female, older, high education degree, cigarette and alcohol intake, infrequent physical exercise, chronic hepatitis B, chronic hepatitis C, fatty liver, gallstones and a family history of liver cancer were inclined to accept liver cancer screening ( P<0.05). Conclusions:The overall participation rate of liver cancer screening among high-risk population is less than 50% in urban areas of Henan Province. Implement of effective interventions targeting the specific high-risk populations might improve the overall compliance rate of liver cancer screening in the future.