OBJECTIVES: To report the development, validation, and findings of the Multi-dimensional Attention Rating Scale (MARS), a self-report tool crafted to evaluate six-dimension attention levels. METHODS: The MARS was developed based on Classical Test Theory (CTT). Totally 202 highly educated healthy adult participants were recruited for reliability and validity tests. Reliability was measured using Cronbach's alpha and test-retest reliability. Structural validity was explored using principal component analysis. Criterion validity was analyzed by correlating MARS scores with the Toronto Hospital Alertness Test (THAT), the Attentional Control Scale (ACS), and the Attention Network Test (ANT). RESULTS: The MARS comprises 12 items spanning six distinct dimensions of attention: focused attention, sustained attention, shifting attention, selective attention, divided attention, and response inhibition.As assessed by six experts, the content validation index (CVI) was 0.95, the Cronbach's alpha for the MARS was 0.78, and the test-retest reliability was 0.81. Four factors were identified (cumulative variance contribution rate 68.79%). The total score of MARS was correlated positively with THAT (r = 0.60, P < 0.01) and ACS (r = 0.78, P < 0.01) and negatively with ANT's reaction time for alerting (r = -0.31, P = 0.049). CONCLUSIONS The MARS can reliably and validly assess six-dimension attention levels in real-world settings and is expected to be a new tool for assessing multi-dimensional attention impairments in different mental disorders.
Humans ; Adult ; Male ; Attention/physiology* ; Female ; Middle Aged ; Reproducibility of Results ; Young Adult ; Psychometrics

Individuals with congenital absence of the vas deferens (CAVD) may transmit cystic fibrosis (CF)-causing variants of the cystic fibrosis transmembrane conductance regulator ( CFTR ) gene to their offspring through assisted reproductive technology (ART). We aimed to delineate the spectrum and estimate the prevalence of CF-causing variants in Chinese individuals with CAVD through a cohort analysis and meta-analysis. CFTR was sequenced in 145 Chinese individuals with CAVD. CFTR variants were classified as CF-causing or non-CF-causing variants regarding clinical significance. A comprehensive genotype analysis was performed in Chinese individuals with CAVD, incorporating previous studies and our study cohort. The prevalence of CF-causing variants was estimated through meta-analysis. In our cohort, 56 different CFTR variants were identified in 108 (74.5%) patients. Twenty variants were categorized as CF-causing and were detected in 28 (19.3%) patients. A comprehensive genotype analysis of 867 patients identified 174 different CFTR variants. Sixty-four were classified as CF-causing variants, 56.3% of which had not been previously reported in Chinese patients with CF. Meta-analysis showed that 14.8% (95% confidence interval [CI]: 11.0%-18.9%) CAVD cases harbored one CF-causing variant, and 68.6% (95% CI: 65.1%-72.0%) CAVD cases carried at least one CFTR variant. Our study underscores the urgent need for extensive CFTR screening, including sequencing of whole exons and flanking regions and detection of large rearrangements and deep intronic CF-causing variants, in Chinese individuals with CAVD before undergoing ART. The established CF-causing variants spectrum may aid in the development of genetic counseling strategies and preimplantation diagnosis to prevent the birth of a child with CF.
Adult ; Humans ; Male ; China ; Cohort Studies ; Cystic Fibrosis/genetics* ; Cystic Fibrosis Transmembrane Conductance Regulator/genetics* ; Genotype ; Male Urogenital Diseases/genetics* ; Mutation ; Vas Deferens/abnormalities* ; East Asian People/genetics*

The interaction between m⁶A-methylated RNA and chromatin modification remains largely unknown. We found that targeted inhibition of bromodomain-containing protein 4 (BRD4) by siRNA or its inhibitor (JQ1) significantly decreases mRNA m⁶A levels and suppresses the malignancy of breast cancer (BC) cells via increased expression of demethylase AlkB homolog 5 (ALKBH5). Mechanistically, inhibition of BRD4 increases the mRNA stability of ALKBH5 via enhanced binding between its 3' untranslated regions (3'UTRs) with RNA-binding protein RALY. Further, BRD4 serves as a scaffold for ubiquitin enzymes tripartite motif containing-21 (TRIM21) and ALKBH5, resulting in the ubiquitination and degradation of ALKBH5 protein. JQ1-increased ALKBH5 then demethylates mRNA of extra spindle pole bodies like 1 (ESPL1) and reduces binding between ESPL1 mRNA and m⁶A reader insulin like growth factor 2 mRNA binding protein 3 (IGF2BP3), leading to decay of ESPL1 mRNA. Animal and clinical studies confirm a critical role of BRD4/ALKBH5/ESPL1 pathway in BC progression. Further, our study sheds light on the crosstalks between histone modification and RNA methylation.

OBJECTIVES: To explore the efficacy of DSA-guided intrathecal drug delivery system combined with Zi Wu Liu Zhu Acupoint Therapy for management of cancer pain and provide reference for its standardized clinical application. Methods and. RESULTS: Recommendations were formulated based on literature review and expert group discussion, and consensus was reached following expert consultation. The consensus recommendations are comprehensive, covering the entire treatment procedures from preoperative assessment and preparation, surgical operation process, postoperative management and traditional Chinese medicine treatment to individualized treatment planning. The study results showed that the treatment plans combining traditional Chinese with Western medicine effectively alleviated cancer pain, reduced the use of opioid drugs, and significantly improved the quality of life and enhanced immune function of the patients. Postoperative follow-up suggested good treatment tolerance among the patients without serious complications. CONCLUSIONS The formulated consensus is comprehensive and can provide reference for clinicians to use DSA-guided intrathecal drug delivery system combined with Zi Wu Liu Zhu Acupoint Therapy. The combined treatment has a high clinical value with a good safety profile for management of cancer pain.
Humans ; Medicine, Chinese Traditional ; Cancer Pain/therapy* ; Drugs, Chinese Herbal/therapeutic use* ; Drug Delivery Systems ; Pain Management/methods* ; China

Background and objective Both of lung cancer incidence and mortality rank first among all cancers in China.Previous lung cancer screening trials were mostly selective screening for high-risk groups such as smokers.Non-smoking women accounted for a considerable proportion of lung cancer cases in Asia.This study aimed to evaluate the outcome of community-based mass screening in Guangzhou and identify the high-risk factors for lung cancer.Methods Residents aged 40-74 years in Guangzhou were screened with low-dose computed tomography(LDCT)for lung cancer and the pulmonary nodules were classified and managed according to China National Lung Cancer Screening Guideline with Low-dose Computed Tomography(2018 version).The detection rate of positive nodules was calculated.Before the LDCT examination,residents were required to complete a"lung cancer risk factors questionnaire".The risk factors of the questionnaire were analyzed by least absolute shrinkage and selection operator(LASSO)penalized Logistic regression analysis.Results A total of 6256 residents were included in this study.1228 positive nodules(19.63％)and 117 lung cancers were confirmed,including 6 cases of Tis,103 cases of stage Ⅰ(accounting for 88.03％of lung cancer).The results of LASSO penalized Logistic regression analysis indicated that age ≥50 yr(OR=1.07,95％CI:1.06-1.07),history of cancer(OR=3.29,95％CI:3.22-3.37),textile industry(OR=1.10,95％CI:1.08-1.13),use coal for cooking in childhood(OR=1.14,95％CI:1.13-1.16)and food al-lergy(OR=1.10,95％CI:1.07-1.13)were risk factors of lung cancer for female in this district.Conclusion This study highlighted that numerous early stages of lung cancer cases were detected by LDCT,which could be applied to screen-ing of lung cancer in women.Besides,age ≥50 yr,personal history of cancer,textile industry and use coal for cooking in childhood are risk factors for women in this district,which suggested that it's high time to raise the awareness of early lung cancer screening in this group.

Objective:To observe the effects of different intervention schemes on the expression of adhesion-related cytokines, menstrual recovery and clinical outcome of patients after transcervical resection of adhesion (TCRA) .Methods:180 patients received TCRA in our hospital from Feb. 2022 to Feb. 2023 were divided into group A, group B and group C according to different post-operative intervention programs, with 60 patients in each group. Patients in group A were treated with artificial cycle of estrogen and progesterone after surgery. On this basis, patients in group B were placed with a uterine birth control ring, and patients in group C were injected with sodium hyaluronate gel into the uterine cavity. The grade of uterine cavity adhesion, improvement rate of menstruation and pregnancy outcome at 2 months after operation and pregnancy outcome within 1 year after surgery were compared between the three groups at 2 months after operation. The relative mRNA expression of endometrial tissue transforming growth factor β1 (TGF-β1), platelet-derived growth factor BB (PDGF-BB), tissue inhibitor of matrix metalloproteinase-1 (TIMP-1) and basic fibroblast growth factor (bFGF) at uterine cavity adhesion in each group were detected and compared.Results:At 2 months after surgery, the uterine adhesion rates in group A, group B, and group C were 43.33%, 15.00%, and 11.67%, respectively. There was no significant difference in the uterine adhesion rates between group B and group C ( P>0.05), but they were significantly lower than those in group A ( P<0.05) ; Meanwhile, the degree of intrauterine adhesions in group B and group C was significantly milder than that in group A ( P<0.05). The menstrual improvement rates of group A, group B, and group C at 2 months after surgery were 76.67%, 93.33%, and 96.67%, respectively. There was no significant difference between group B and group C ( P>0.05), but they were all significantly higher than group A ( P<0.05). At 2 months post surgery, the relative expression levels of TGF-β1, PDGF-BB, TIMP-1, and bFGF mRNA in the endometrial tissue at the site of uterine adhesions in group A were 0.77±0.26, 0.58±0.27, 0.54±0.15, and 0.62±0.14, respectively. In group B, they were 0.37±0.16, 0.37±0.14, 0.26±0.11, and 0.29±0.10, respectively. In group C, they were 0.32±0.16, 0.21±0.09, 0.27±0.08, and 0.34±0.18, respectively. The relative expression levels of cytokines in each group were significantly lower than during surgery ( P<0.05). There was no significant difference in the relative expression levels of various cytokines mRNA between group B and group C at 2 months after surgery ( P>0.05), but both were significantly lower than group A ( P<0.05). The pregnancy success rates within 1 year after surgery in group A, group B, and group C were 40.00%, 55.00%, and 58.33%, respectively. The pregnancy success rate in group C was significantly higher than that in group A ( P<0.05) . Conclusions:The application of metauterine contraceptive ring or sodium hyaluronate gel on the basis of estrogen and progesterone treatment after TCRA can effectively prevent postoperative re-adhesion of patients with intrauterine adhesions, improve clinical symptoms, and reduce the expression level of adhesion cytokines. The effects of the two schemes are equivalent.

Objective To elucidate the potential mechanisms by which mesothelin(MSLN)contributes to chemotherapy resistance in high-grade serous ovarian cancer(HGSOC).Methods A Meta-analysis utilizing public ovarian cancer databases was performed to evaluate the correlation between MSLN expression levels and overall survival(OS)in ovarian cancer patients.Pathway enrichment analysis was employed to identify key signaling pathways regulated by MSLN and their roles in chemotherapy resistance.Additionally,the TCGA-HGSOC database was analyzed to examine genomic features associated with MSLN-mediated chemotherapy resistance.To validate the biological function of MSLN in chemotherapy resistance,an intraperitoneal metastasis model was established using MSLN-knockdown ID8 ovarian cancer cells in mice.Results Elevated MSLN expression was significantly associated with poor patient prognosis(HR:1.42,95%CI:1.16-1.74).Differential gene expression and pathway enrichment analyses revealed that high MSLN expression upregulates resistance-associated genes and pathways involved in drug metabolism and DNA-binding signaling.Genomic association analysis showed a negative correlation between high MSLN expression and chromosomal instability features,specifically CX3,CX11,and CX13 scores.In vivo studies demonstrated that MSLN knockdown enhanced the tumor-suppressive effects of cisplatin.Conclusion High MSLN expression represents a potential biomarker for poor prognosis and chemotherapy resistance in HGSOC patients,suggesting MSLN as a promising target for therapeutic intervention.

Objective Exploring the mechanism of electroacupuncture's anti anxiety effect through methods such as hippocampal metabolomics and 16S rRNA sequencing.Methods Rats were randomly divided into normal group,model group,electroacupuncture group,and diazepam group.A rat model of anxiety disorder was prepared using chronic restraint stress method.During the modeling period of the electroacupuncture group,simultaneous"Zusanli"acupoint electroacupuncture intervention was performed for 30 minutes each time,once a day,for 21 days.The diazepam group received daily gavage of diazepam for a total of 21 days.After the completion of modeling,open field experiments and elevated cross maze experiments were conducted to observe the behavior of rats.Subsequently,pathological staining was performed to observe the pathological changes in the hippocampus and colon of rats.Metabolomics detection of changes in metabolites in the hippocampus of rats.16S rRNA and short chain fatty acid analysis were used to detect changes in gut microbiota and short chain fatty acids in rats.Western blot detection of Occludin in the colon and TLR4,NF-κB P65 and NLRP3 in the hippocampus of rats.Immunofluorescence detection of IBA-1,NLRP3,and IL-1β in the hippocampus Protein expression.Result The results of the open field experiment showed that compared with the normal group,the total activity distance(P<0.001),central area activity distance(P<0.01),and average velocity(P<0.01)of the model group decreased.Compared with the model group,the total activity distance(P<0.05,P<0.001),central area activity distance(P<0.05,P<0.01),and average velocity(P<0.05,P<0.01)of the electroacupuncture group and diazepam group all increased.The results of the elevated cross maze experiment showed that compared with the normal group,the model group had a decrease in OE%(P<0.001)and OT%(P<0.001).Compared with the model group,both the electroacupuncture group and the diazepam group could increase OE%(P<0.05,P<0.001)and OT%(P<0.01,P<0.001).The HE staining results of the hippocampus showed that the CA1 area of the hippocampus in the normal group rats showed clear and hierarchical structures in various regions of the hippocampus.In the hippocampus of the model group,a small amount of neural cell nuclei in the CA1 area were observed to be wrinkled and deeply stained,with unclear cell boundaries and irregular arrangement,and the cytoplasm was vacuolate.The intervention of electroacupuncture and diazepam can alleviate the above pathological phenomena to varying degrees,respectively;The results of hippocampal metabolomics showed that electroacupuncture can improve hippocampal metabolic disorders caused by modeling,mainly involving taurine and low taurine metabolism,cysteine and methionine metabolism,and regulation of glycine,serine,and threonine metabolic pathways;The results of 16S rRNA sequencing and short chain fatty acid detection showed that electroacupuncture can improve the disturbance of intestinal microbiota caused by modeling,and can regulate serum LPS and levels of butyric acid,caproic acid,and valeric acid.HE staining and Western blot results showed that the model group had pathological damage to the intestine,and compared with the normal group,the expression of Occludin in the colon of the model group decreased(P<0.05).However,the intervention of electroacupuncture and diazepam could improve the pathological damage of the colon and upregulate the expression of Occludin(P<0.05,P<0.05).The immunofluorescence results showed that compared with the normal group,the expression levels of IBA-1,NLRP3,and IL-1β in the hippocampus of the model group increased(P<0.05,P<0.01,P<0.01),while compared with the model group,the electroacupuncture group and diazepam group could reduce the expression levels of IBA-1(P<0.05,P<0.05),NLRP3(P<0.05,P<0.05),and IL-1β(P<0.05,P<0.05).Western blot results showed that compared with the normal group,the expression levels of TLR4,NF-κB P65,and NLRP3 proteins in the hippocampus of the model group increased(P<0.05,P<0.001,P<0.05).Compared with the model group,the electroacupuncture group and diazepam group were able to downregulate the expression levels of NF-κB P65(P<0.01,P<0.001)and NLRP3(P<0.05,P<0.05)proteins.Conclusion The anxiolytic of electroacupuncture involves the regulation of the"microbiota-gut-brain"axis.

Objective To propose a sperm classification model based on convolutional neural network to enhance the accuracy of sperm morphological classification.Methods A FT-EfficientNet model was constructed using EfficientNetB0 as the base model,which was fine-tuned by data preprocessing enhancement,transfer learning and cosine decay.Classification experi-ments were performed on the sperm public datasets SCIAN-Morpho and HuSHeM,and the datasets were segmented and vali-dated using 5-fold cross-validation.The classification results by the FT-EfficientNet model were compared with those by the cascade ensemble of support vector machines(CE-SVM)model,the adaptive patch-based dictionary learning(APDL)model,fine tuning of visual geometry group(FT-VGG)model,morphological classification of human sperm heads(MH-HSH)model and transfer learning(TL)model.Ablation experiments were performed in the SCIAN-Morpho dataset to verify the effect of different fine-tuning methods on the model.Results The FT-EfficientNet model proposed had the accuracy,precision and F1 score on the SCIAN-Morpho validation set being 64.1％,63.8％and 64.8％,respectively,which were better than CE-SVM,APDL,FT-VGG and MC-HSH models.The recall rate of the model proposed(65.2％)was slightly lower than that of MC-HSH model(68.0％).The accuracy,precision,F1 score and recall rate on the HuSHeM validation set was 95.4％,95.8％,95.4％and 96.0％,respectively,which were slightly lower than those of TL model while better than those of CE-SVM,APDL,FT-VGG and MC-HSH models.Ablation experiments showed the FT-EfficientNet model behaved the best in fine-tuning.Conclusion The sperm classification model based on convolutional neural network facilitates sperm morphology classification with high accuracy and performance.[Chinese Medical Equipment Journal,2024,45(10):7-13]

Objective To explore the age-related biological properties of bone-derived mesenchymal stem cells(BMSCs)from mice of different age groups and their osteogenic differentiation induced by bone morphogenetic protein 2(BMP2).Methods Eight C57BL/6J mice were divided into a young group(4 weeks old,weighing 10～15 g,n=4)and an old group(12 months old,weighing 20～25 g,n=4),with half male and half female.MSCs were extracted from the whole bones of the 2 groups of mice.After the obtained cells were identified with flow cytometry for the surface markers,β-galactosidase staining was employed to compare the senescence level of BMSCs,MTT and EdU incorporation assays were conducted to compare the proliferation and self-renewal abilities of between the 2 groups.Western blotting was employed to analyze the expression of CyclinD1 and P21 in BMSCs.Then ALP staining,Alizarin Red staining and RT-qPCR were used to evaluate the osteogenic differentiation ability of the cells.RNA sequencing was performed to compare the differential gene expression in BMP2-induced BMSCs.Lastly,the sequencing results were re-confirmed by using flow cytometry.Results Flow cytometry showed that the sorted and cultured mouse BMSCs met the criteria for MSCs.The results of β-galactosidase staining indicated that the senescence level of BMSCs in the old group was significantly higher than that in the young group(P＜0.05).MTT and EdU doping experiments revealed that the cell viability and proliferation ability of BMSCs were significantly lower in the old group than the young group(P＜0.05).Western blotting displayed that the expression level of cell cycle protein CyclinD1 was lower,whereas that of cell cycle inhibitory factor P21 was significantly higher in the BMSCs from the old group than the cells from the young group(P＜0.05).ALP/Alizarin Red staining and RT-qPCR demonstrated that the BMSCs from the young group had stronger osteogenic differentiation capacity after BMP2 treatment when compared the cells of the old group(P＜0.05).RNA sequencing results displayed that the changing profile of CD51 expression was in opposite trends in the young and old BMSCs after BMP2 treatment.Finally,flow cytometry revealed that the percentage of CD51+cells within the CD45-cells was significantly higher in the young group than the old group.Conclusion The decrease in the percentage of CD51+cells among CD45-cells in aged BMSCs is closely associated with their decreased responsiveness to BMP2-induced osteogenic differentiation.