Objective To explore the role of pseudogene AC106872.1 in maintaining the self-renewal capacity of human embryonic stem cells(hESCs).Methods AC106872.1 was knocked out in hESCs and knockout effi-ciency was validated by PCR and agarose gel electrophoresis.The colony formation of hESCs was assessed through colony formation assays and alkaline phosphatase(AP)staining.The expression level of pluripotency and differ-entiation marker genes was analyzed by qPCR and flow cytometry.RNA sequencing(RNA-seq)was performed to assess transcriptomic changes upon AC106872.1 knockout.Results Knockout of AC106872.1 significantly in-hibited the colony formation of hESCs(P＜0.05).The expression level of pluripotency marker genes was signifi-cantly reduced(P＜0.000 1),while the expression of differentiation marker genes was markedly increased(P＜0.000 1).Conclusions The pseudogene AC 1 06872.1 plays a crucial role in maintaining human embryonic stem cell self-renewal through regulation of pluripotency genes expression.

Objective To investigate the effect of ergothioneine(EGT)on tissue metabolism in middle-aged and aged mice.Methods Nine-month-old middle-aged and aged C57BL/6J mice were selected to be gavaged with EGT aqueous solution at the dose and frequency of 35 mg EGT per kg body weight every two days.The control group was gavaged with the same amount of water.Both groups were fed with EGT-free diet.After 7 weeks,the liver,kidney,and small intestine of mice were collected,and untargeted metabolomics analysis was performed using ultra-per-formance liquid chromatography-mass spectrometry(UHPLC-MS).The differential metabolites were selected for KEGG metabolic pathway enrichment analysis.Results Compared with the control group,the abundances of me-tabolites related to redox balance in liver,kidney and small intestine of middle-aged and aged mice treated with EGT did not change significantly.However,taurine and hypotaurine metabolism in liver(P＜0.01),purine metabo-lism in kidney(P＜0.01),and cysteine and methionine metabolism in small intestine(P＜0.001)were affected.Conclusions Non-redox-related metabolic changes in the liver,kidney and small intestine of middle-aged and aged mice by ergothioheine.

Objective To investigate the effect of pseudogene GTF3AP2 in erythroid differentiation.Methods The published high-throughput RNA sequencing(RNA-seq)data were analyzed to identify the functional pseudogene GTF3AP2,which may play a role in erythropoiesis.The endogenous expression of GTF3AP2 was inhibited by shR-NA in CD34+hematopoietic stem/progenitor cells to assess the colony-forming ability through colony-forming assay.Flow cytometry analysis was applied to detect changes in the ratio of erythroid/megakaryocytic progenitor cells.Ad-ditionally,the role of GTF3AP2 in erythroid differentiation was determined through transcriptome sequencing,which revealed alterations at the cellular and molecular levels following the knockdown of GTF3AP2.Results Com-pared with the sh-EV group,knockdown of GTF3AP2 resulted in a significant increase in cell expansion,character-ized by a significant rise in the number of colony-forming unit erythroid cells(P＜0.001),an increase in the proportion of CD71+CD235a+erythroid precursors(P＜0.01),and a decrease in the proportion of CD71-CD235a+mature erythrocytes(P＜0.05).Furthermore,there was a significant reduction in the expression of key erythroid dif-ferentiation genes,including KLF1,HBB,GYPA,EPOR and TFRC.Conclusions Knocking down of GTF3AP2 promotes the expansion of erythroid precursor cells and inhibits erythroid maturation,suggesting that GTF3AP2 plays a regulatory role in erythroid differentiation.

Postoperative lower limb lymphedema following gynecological malignancies can be categorized under TCM concepts of"edema"and"meridian obstruction".Professor Jia Liqun believes that the underlying deficiency lies in yang and blood deficiency,while the excess is characterized by dampness and blood stasis obstructing the meridians.Consequently,the treatment strategies include warming yang and nourishing blood to unblock the meridians,dispelling dampness and promoting diuresis to unblock the meridians,and transforming stasis and promoting diuresis to unblock the meridians.Clinical practice requires dynamic syndrome differentiation and treatment according to the disease progression.Additionally,Professor Jia often employs the external application of Wenjing Tongluo Powder to directly target the affected area,combining internal and external treatments to enhance the effect of unblocking the meridians and reducing swelling.

Objective This study aimed to evaluate the measurement attributes of the QLU-C10D scale in breast cancer pa-tients,and provide the evidence for the application of the tool in the measurement of health effectiveness of breast cancer patients.Methods Since July 2022,the data of breast cancer patients in Harbin Medical University Cancer Hospital and the First Affiliated Hospital of Harbin Medical University were collected,and the utility values for the QLU-C10D and EQ-5D-5L were calculated based on the Chinese utility scoring system.The validity of the first collected sample data was evaluated by convergent validity and known-group validity,The data were collected again three months after treatment to evaluate the responsiveness of QLU-C10D in breast canc-er patients.Results In terms of convergent validity,the theoretical correlation dimension between the QLU-C10D and EQ-5D-5L scale was higher than that of irrelevant dimensions.Among them,the correlation between pain in QLU-C10D scale and pain in EQ-5D-5L scale was the highest(r=0.546),while the correlation between insomnia in QLU-C10D scale and self-care in EQ-5D-5L scale was the lowest(r=0.219).In terms of known-group validity,the QLU-C10D scale had a relative efficiency(RE)greater than 1 in all groups(education level,residential address,frequency of physical examinations,economic pressures,and ECOG score).In terms of responsiveness,the QLU-C10D scale could effectively reflect the changes in health status of breast cancer patients after treatment,especially in the dimensions of role function(ES=0.415,SRM=0.645)and bowel problems(ES=0.433,SRM=0.708).Conclusion The QLU-C10D scale has good convergent validity,known-group validity and good responsiveness.It is a disease-specific health utility measurement tool that can be used for health utility measurement of breast cancer patients and health technology evaluation re-search.

Objective:It aims to systematically evaluate the current status of knowledge,attitude,and practice(KAP)regarding universal commercial medical insurance among residents of the sample province from the demand-side perspective.Methods:Utilizing a quota sampling method,face-to-face surveys were conducted via the Questionnaire Star platform to collect demographic characteristics and KAP data of the participants.Comparisons of differences among different groups were made using t-tests,analysis of variance,and chi-square tests.Furthermore,multiple linear regression and structural equation modeling were utilized to analyze the influencing factors of KAP,as well as the pathways among these three factors.Results:Out of the 415 valid questionnaires collected,there were notable differences in KAP among respondents with diverse demographic backgrounds.Regression analysis revealed that education level,frequency of health check-ups,and engagement in other commercial health insurances significantly influenced knowledge;education level,involvement in other commercial health insurances,and self-assessed health status were pivotal in shaping attitudes;whereas age,education level,frequency of health check-ups,and participation in other commercial health insurances were critical in affecting practice.The path analysis results indicate that knowledge of universal commercial medical insurance has a significant direct association with attitude(β=0.379,P＜0.001)and practice(β=0.323,P＜0.001).It also influences practice through attitude as a mediator(β=0.016,P＜0.001),but the direct effect of attitude on practice is not significant(β=0.04,P=0.403).Conclusion:While residents in the sample province exhibit a positive attitude towards universal commercial medical insurance,there is a need to enhance their level of knowledge and engagement in practice.It is recommended to strengthen targeted educational and promotional measures to promote the healthy and sustainable development of universal insurance.

Objective:It aims to systematically evaluate the current status of knowledge,attitude,and practice(KAP)regarding universal commercial medical insurance among residents of the sample province from the demand-side perspective.Methods:Utilizing a quota sampling method,face-to-face surveys were conducted via the Questionnaire Star platform to collect demographic characteristics and KAP data of the participants.Comparisons of differences among different groups were made using t-tests,analysis of variance,and chi-square tests.Furthermore,multiple linear regression and structural equation modeling were utilized to analyze the influencing factors of KAP,as well as the pathways among these three factors.Results:Out of the 415 valid questionnaires collected,there were notable differences in KAP among respondents with diverse demographic backgrounds.Regression analysis revealed that education level,frequency of health check-ups,and engagement in other commercial health insurances significantly influenced knowledge;education level,involvement in other commercial health insurances,and self-assessed health status were pivotal in shaping attitudes;whereas age,education level,frequency of health check-ups,and participation in other commercial health insurances were critical in affecting practice.The path analysis results indicate that knowledge of universal commercial medical insurance has a significant direct association with attitude(β=0.379,P＜0.001)and practice(β=0.323,P＜0.001).It also influences practice through attitude as a mediator(β=0.016,P＜0.001),but the direct effect of attitude on practice is not significant(β=0.04,P=0.403).Conclusion:While residents in the sample province exhibit a positive attitude towards universal commercial medical insurance,there is a need to enhance their level of knowledge and engagement in practice.It is recommended to strengthen targeted educational and promotional measures to promote the healthy and sustainable development of universal insurance.

Objective This study aimed to evaluate the measurement attributes of the QLU-C10D scale in breast cancer pa-tients,and provide the evidence for the application of the tool in the measurement of health effectiveness of breast cancer patients.Methods Since July 2022,the data of breast cancer patients in Harbin Medical University Cancer Hospital and the First Affiliated Hospital of Harbin Medical University were collected,and the utility values for the QLU-C10D and EQ-5D-5L were calculated based on the Chinese utility scoring system.The validity of the first collected sample data was evaluated by convergent validity and known-group validity,The data were collected again three months after treatment to evaluate the responsiveness of QLU-C10D in breast canc-er patients.Results In terms of convergent validity,the theoretical correlation dimension between the QLU-C10D and EQ-5D-5L scale was higher than that of irrelevant dimensions.Among them,the correlation between pain in QLU-C10D scale and pain in EQ-5D-5L scale was the highest(r=0.546),while the correlation between insomnia in QLU-C10D scale and self-care in EQ-5D-5L scale was the lowest(r=0.219).In terms of known-group validity,the QLU-C10D scale had a relative efficiency(RE)greater than 1 in all groups(education level,residential address,frequency of physical examinations,economic pressures,and ECOG score).In terms of responsiveness,the QLU-C10D scale could effectively reflect the changes in health status of breast cancer patients after treatment,especially in the dimensions of role function(ES=0.415,SRM=0.645)and bowel problems(ES=0.433,SRM=0.708).Conclusion The QLU-C10D scale has good convergent validity,known-group validity and good responsiveness.It is a disease-specific health utility measurement tool that can be used for health utility measurement of breast cancer patients and health technology evaluation re-search.

Postoperative lower limb lymphedema following gynecological malignancies can be categorized under TCM concepts of"edema"and"meridian obstruction".Professor Jia Liqun believes that the underlying deficiency lies in yang and blood deficiency,while the excess is characterized by dampness and blood stasis obstructing the meridians.Consequently,the treatment strategies include warming yang and nourishing blood to unblock the meridians,dispelling dampness and promoting diuresis to unblock the meridians,and transforming stasis and promoting diuresis to unblock the meridians.Clinical practice requires dynamic syndrome differentiation and treatment according to the disease progression.Additionally,Professor Jia often employs the external application of Wenjing Tongluo Powder to directly target the affected area,combining internal and external treatments to enhance the effect of unblocking the meridians and reducing swelling.

Due to the serious shortage of corneal donor, the development of penetrating keratoplasty and corneal endothelial transplantation is severely restricted in clinical practice.The root cause is the limited proliferation capacity of healthy corneal endothelial cells.With the continuous development of tissue engineering technology and cell engineering technology, the research of tissue-engineered cornea has made some progress. In vitro culture of corneal endothelial cells with high density and healthy endothelial function for transplantation is a hot topic in current tissue engineering research.The keys of tissue-engineered corneal endothelial technology include seed cells, vector materials and the strategy of cell transplantation.At present, many research teams domestic and abroad have reported that the source of seed cells includes human corneal endothelial cells, stem cells, vascular endothelial cells and human amniotic epithelial cells.Vector materials include amniotic membrane, acellular corneal stroma, posterior elastic layer, anterior capsular membrane and various biomaterials.The cultured cells are transplanted by penetrating keratoplasty, corneal endothelial transplantation or anterior chamber injection.This review summarized the latest progress in the research on the source of corneal endothelial seed cells, the selection of vectors and the methods of corneal endothelial transplantation, and summed up the problems faced in the current research and looked forward to its prospects.