BackgroundAttention deficit hyperactivity disorder （ADHD） is a neurodevelopmental disorder characterized by age-inappropriate inattention， excessive activities incongruous with setting， and emotional impulsivity. Subthreshold ADHD （sADHD） is clinically defined as the presence of ADHD symptoms that do not meet the full diagnostic criteria for ADHD. Children with sADHD exhibit deficits in executive function， demonstrate more conduct， learning， and anxiety-related problems compared to typically developing children， and show even poorer working memory performance than children diagnosed with ADHD. Currently， there is limited epidemiological research on sADHD in China， with few studies simultaneously investigating the prevalence of both ADHD and sADHD in children. ObjectiveTo investigate the prevalence of ADHD and sADHD among children aged 6–13 years in Chongqing， analyzing their distribution characteristics within this population， with the aim of providing references for developing preventive measures against both ADHD and sADHD. MethodsFrom October to November 2023， a total of 3 398 students in grades 1–6 from six primary schools in Jiangbei District， Chongqing were selected using a stratified cluster random sampling method. The occurrence of ADHD and sADHD was evaluated by using the short version （18-item version） of the Swanson， Nolan， and Pelham IV rating scales （SNAP-IV） and the Chinese vision of Schedule for Affective Disorder and Schizophrenia for School-aged Children-Present and Lifetime Version （K-SADS-PL）. ResultsThe ADHD detection rate among children in Chongqing was 1.90% （95% CI： 0.014–0.024）. Boys showed a significantly higher ADHD detection rate than girls （χ²=7.733， P=0.005）. No statistically significant differences were found in ADHD detection rates across different grades or age groups （χ²=7.347， 12.362， P>0.05）. The sADHD detection rate was 6.32% （95% CI： 0.054–0.072）. Similarly， boys exhibited significantly higher sADHD detection rates than girls （χ²=21.005， P<0.01）. Significant differences emerged across different grades （χ²=20.559， P=0.001）， while no statistically significant difference was observed in age groups （χ²=12.070， P=0.060）. ConclusionThe ADHD detection rates were comparable across all grade levels and age groups from 6–13 years old. Second-grade children demonstrated notably higher sADHD rates compared to other grades， while boys demonstrated higher prevalence rates than girls for both ADHD and sADHD. ［Funded by Science and Health Joint Medical Research Project in Jiangbei District， Chongqing City in the Second Half of 2023 （number， 2023JBKWLH022）］

Objective To systematically evaluate and integrate qualitative studies on perception of exercise behaviors in community-dwelling older adults with frailty,and to provide references for clinical development of targeted exercise intervention strategies.Methods A systematic search of PubMed,Medline,Embase,PsycINFO,the Cochrane Library,SinoMed,Wanfang Database,CNKI,and VIP Database for qualitative studies on perception of exercise behaviors in older adults with frailty in the community was conducted from the inception of the databases to June 2024.Literature quality was evaluated using the Australian Joanna Briggs Institute Centre for Evidence-Based Health Care Quality Assessment Criteria for Qualitative Research(2016 edition),and Meta-synthesis was performed using the theme synthesis method.Results A total of 10 papers were included,grouped into 10 categories and integrated into the 3 domains of the capability,opportunity,and motivation-behavior model(COM-B model),i.e.Preparation for exercise behavior is influenced by capability factors(physical reserve,knowledge reserve,psychological preparation);stage-specific motivational evolution promotes the internalization of exercise behavior(guiding,focusing,stimulating,and maintaining);external conditions provide opportunities for exercise behavior(individual interaction,community environment,and social support).Conclusion Perceptions of exercise behavior among community-dwelling older adults with frailty or are complex and influenced by a variety of factors.Future exercise intervention strategies should consider modifiable factors,enhance knowledge education,stimulate intrinsic motivation,and solidify external conditions,while also accommodating individual differences and preferences,so as to promote exercise participation and health enhancement in this group.

Objective To analyze the correlation between the pulmonary immune prognostic index(LIPI)and the prognosis of patients with advanced non-small cell lung cancer(NSCLC)treated with sintilimab.Methods A total of 145 patients with advanced NSCLC were selected as study subjects.All patients received treatment with sintilimab,and their clinical baseline data were recorded.Accord-ing to the LIPI score,patients were divided into low-risk,intermediate-risk,and high-risk groups.The correlation between LIPI and the prognosis of advanced NSCLC patients was analyzed.Factors in-fluencing progression-free survival(PFS)and overall survival(OS)were identified.Results Univa-riate analysis showed that patient age,smoking status,pathological type,clinical stage and LIPI were factors affecting PFS(P＜0.05);age,pathological type,clinical stage and LIPI were factors affecting OS(P＜0.05).Multivariate Logistic regression analysis revealed that age of 60 to 70 years,age＞70 years,adenocarcinoma,stage Ⅳ and high-risk LIPI were independent prognostic factors of PFS(P＜0.05);age＞70 years,poor stage Ⅳ,adenocarcinoma and high-risk LIPI were independent prognos-tic factors of OS(P＜0.05).LIPI influenced patient's prognosis,with low-risk patients showing better outcomes and longer median PFS and OS.Conclusion LIPI is correlated with the prognosis of advanced NSCLC patients treated with sintilimab.Patients with a low-risk LIPI assessment benefit more from sintilimab treatment.

Objective To systematically evaluate and integrate qualitative studies on perception of exercise behaviors in community-dwelling older adults with frailty,and to provide references for clinical development of targeted exercise intervention strategies.Methods A systematic search of PubMed,Medline,Embase,PsycINFO,the Cochrane Library,SinoMed,Wanfang Database,CNKI,and VIP Database for qualitative studies on perception of exercise behaviors in older adults with frailty in the community was conducted from the inception of the databases to June 2024.Literature quality was evaluated using the Australian Joanna Briggs Institute Centre for Evidence-Based Health Care Quality Assessment Criteria for Qualitative Research(2016 edition),and Meta-synthesis was performed using the theme synthesis method.Results A total of 10 papers were included,grouped into 10 categories and integrated into the 3 domains of the capability,opportunity,and motivation-behavior model(COM-B model),i.e.Preparation for exercise behavior is influenced by capability factors(physical reserve,knowledge reserve,psychological preparation);stage-specific motivational evolution promotes the internalization of exercise behavior(guiding,focusing,stimulating,and maintaining);external conditions provide opportunities for exercise behavior(individual interaction,community environment,and social support).Conclusion Perceptions of exercise behavior among community-dwelling older adults with frailty or are complex and influenced by a variety of factors.Future exercise intervention strategies should consider modifiable factors,enhance knowledge education,stimulate intrinsic motivation,and solidify external conditions,while also accommodating individual differences and preferences,so as to promote exercise participation and health enhancement in this group.

Objective:To investigate the clinicopathological and molecular genetic characteristics of Crohn′s disease (CD).Methods:A retrospective analysis was conducted on 52 CD patients who underwent surgical resection at the First Affiliated Hospital of Nanjing Medical University between January 2014 and June 2023. Clinical presentations and histopathological features were assessed. Whole-genome sequencing was performed on 17 of the samples, followed by sequencing and pathway enrichment analyses. Immunohistochemistry was used to assess the expression of frequently mutated genes.Results:Among the 52 patients, 34 were males and 18 were females, male-to-female ratio was 1.9∶1.0, with a median age of 45 years at surgery and 35 years at diagnosis. According to the Montreal classification, A3 (51.9%,27/52), B2 (61.5%, 32/52), and L3 (50.0%,26/52) subtypes were the most predominant. Abdominal pain and diarrhea were the common symptoms. Histopathological features seen in all 52 patients included transmural inflammation, disruption of cryptal architecture, lymphoplasmacytic infiltration, varying degrees of submucosal fibrosis and thickening, increased enteric nerve fibers and neuronal proliferation. Mucosal defects, fissure ulcers, abscesses, pseudopolyps, and adenomatous proliferation were also observed in 51 (98.1%), 38 (73.1%), 28 (53.8%), 45 (86.5%), and 28 (53.8%) cases, respectively. Thirty-one (59.6%) cases had non-caseating granulomas, and 3 (5.8%) cases had intestinal mucosal glandular epithelial dysplasia. Molecular analysis showed that 12/17 CD patients exhibited mutations in at least one mucin family gene (MUC2, MUC3A, MUC4, MUC6, MUC12, MUC17), and MUC4 was the most frequently mutated in 7/17 of cases. Immunohistochemical stains showed reduced MUC4 expression in epithelial cells, with increased MUC4 expression in the epithelial surface, particularly around areas of inflammatory cell aggregation; and minimal expression in the lower half of the epithelium.Conclusions:CD exhibits diverse clinical and pathological features, necessitating a comprehensive multidimensional analysis for diagnosis. Mutations and expression alterations in mucin family genes, particularly MUC4, may play crucial roles in the pathogenesis of CD.

Objective To retrieve,evaluate and summarize the related evidences on non-pharmacological management of sarcopenia in community-dwelling older adults to provide an evidence-based basis for formula-ting a scientific and effective health management program for sarcopenia in older adults.Methods According to the"6S"evidence resource pyramid model,the UpToDate,JBI Center for Evidence-based Health Care,Co-chrane Library,DynaMed,Guidelines International Network,Registered Nurses'Association of Ontario,Med-Sci,Yimaitong,PubMed,CINAHL,Web of Science,CNKI,Wanfang,and CBM for evidence related to the non-pharmacological management of sarcopenia in older adults.The retrival time was from January 1,2018 to No-vember 1,2023.Results A total of 20 literatures were included,including 1 clinical decision,2 guidelines,7 expert consensuses and 10 systematic evaluations or meta analysis.Forty-two pieces of evidence were summa-rized in 4 aspects including screening and assessment,dietary and nutritional management,exercise guidance and health education,in which there were 25 recommendations for the level A and 17 recommendations for Level B.Conclusion Medical staff should select the best evidence by combining with the actual situation,medical conditions and individual factors of the patients,and guide elderly patients with sarcopenia to improve their lifestyle and quality of life safely and effectively.

Objective: To investigate the clinicopathological features, diagnosis and differential diagnosis of monomorphic epitheliotropic intestinal T-cell lymphoma (MEITL). Methods: A total of 12 specimens were collected, which were surgically resected and verified as MEITL by postoperative pathology, immumohistochemical staining and gene rearrangement at the First Affiliated Hospital of Nanjing Medical University from 2012 to 2018, and all of these had complete clinical and pathological data. The MEITL cases were reviewed to compare the clinicopathological characteristics, including morphologic and immunophenotypic features and followed up by telephone and clinic visit. Results: All the cases were diagnosed with MEITL. There were 8 males and 4 females. Male to female ratio was 2∶1, at a median age of 54 years. The sites of involvement included jejunum (4 cases), ileum (5 cases), duodenum (1 case), ileocecal junction (1 case) and rectum (1 case). The neoplastic cells were monotonous of small to intermediate cells in size with round to slightly irregular nuclei in 11 cases. The immunophenotyping showed that CD3 (12/12), CD8 (11/12), CD43 (11/12), CD56 (11/12), TIA-1 (12/12) were positive; CD5 (12/12), Gran B (9/12), and perforin (7/12) were negative. Two cases aberrantly expressed the B-cell marker CD20. A high proliferation index was demonstrated by Ki-67 immunostaining. In situ hybridization for EBER was all negative(12/12). The whole exome sequencing(WES) mutational landscape of MEITL was remarkably homogeneous, showing significantly enriched clusters among histone modifier genes, JAK-STAT and MAPK-signal pathways. Histonelysine N-methytransferase SETD2 gene was mutated in 2/4 tumors. All the patients analyzed harbored at least one mutation in the JAK-STAT signal pathway, including STAT5B (2/4), JAK3 (3/4) and STAT5A (2/4). Furthermore, frequent alterations (TP53) were observed in the MAPK pathway in 3/4 of MEITL cases. The CNV analysis derived from WES data identified multiple regions of frequent gains and losses. In particular, gains in 1q, 7q and 9q, and recurrent losses involving 7p and 8p were observed. Conclusions MEITL is a rare and aggressive type of extranodal T-cell lymphoma. The differential diagnosis of MEITL includes EATL, extranodal NT/T-cell lymphoma and other types of PTCL. Diagnosis should be correlated to clinical symptoms while the final diagnosis is mainly based on the pathological features, immunophenotypes and genetic testing.

Objective:To study the clinicopathological characteristics, diagnosis and differential diagnosis of bronchiolar adenoma (BA).Methods:Fifteen cases of BA were collected from the First Affiliated Hospital of Nanjing Medical University, from January 2016 to October 2019. The clinical data, imaging examination, morphology, immunostaining and molecular changes were retrospectively analyzed.Results:There were 3 males, 12 females, most of the patients were female, mainly in middle-aged to elderly (51-77 years). Three had smoking history. The patients usually had no clinical symptoms. Imaging findings were ground-glass and/or lobulated nodules. Grossly, the tumors were gray-whitish, taupe solid or focally microcystic nodules with distinct boundary but no capsule. The maximum diameter was 0.4-2.5?cm (mean 1.0?cm). Histologically, there were glandular, papillary, or flat patterns that were composed of basal cells, mucous cells, ciliated cells and type Ⅱ pneumocytes, some of which showed basal cell proliferation and squamous cell metaplasia. However, there were some cases with few or even without mucous and/or ciliated cells. Immunostaining highlighted the continuous basal cell layer (positive for p63, p40 and cytokeratin 5/6), which was the most important diagnostic evidence. Genetic tests did not show mutation in BRAF or EGFR genes. All patients were followed up for 1-41 months, and they were without recurrence or metastasis.Conclusions:BA is a benign neoplasm that develops in the peripheral lung with good prognosis. Definite diagnosis is very crucial for surgical treatment, especially in frozen consultation. Immunohistochemistry will be helpful if necessary.

Objective: To investigate the levels of urinary exosomal miR-194-5p in children with idiopathic nephrotic syndrome (INS) and its clinical value as a non-invasive auxiliary diagnostic marker. Methods: Urine samples were collected from 101 INS children and 98 sex- and age-matched healthy children, and the levels of urinary exosomal miR-194-5p were determined by quantitative real-time polymerase chain reaction (qRT-PCR). The clinical value of urinary exosomal miR-194-5p in the diagnosis of children′s INS was evaluated by the ROC curve and correlation analysis. Results: The levels of urinary exosomal miR-194-5p in INS children (2.420 [0.650,9.515] fmol/L) were significantly higher than that in healthy controls (0.360 [0.220,0.653] fmol/L, U=1 552, P＜0.01). Compared with the INS children before treatment, the levels of urinary exosomal miR-194-5p in clinical remission period decreased significantly (0.320 [0.145,0.523] fmol/L vs 0.975 [0.375,4.358] fmol/L, W=708, P＜0.01). Moreover, the levels of miR-194-5p in INS children with heavy urine protein (8.430 [7.225,13.070] fmol/L) were significantly higher than that with light urine protein (2.130 [1.180,3.090] fmol/L, U=0, P＜0.01). The area under the ROC curve (AUC ROC ) of miR-194-5p was 0.843 (95%CI: 0.789-0.897) for the diagnosis of INS children. Spearman correlation analysis showed that the levels of urinary exosomal miR-194-5p in INS children were negatively correlated with serum albumin levels (r=-0.300), and were positively correlated with serum total cholesterol levels (r=0.278) and 24-hour urine protein content (r=0.296, all P＜0.01). Conclusion The levels of urinary exosomal miR-194-5p in INS children increase obviously, and are closely associated with 24-hour urine protein, serum albumin and total cholesterol levels, indicating that urinary exosomal miR-194-5p may be serve as a new non-invasive fluid biopsy molecular marker for the auxiliary diagnosis of INS in children.