OBJECTIVE To investigate the clinical efficacy and safety of Shouhui tongbian capsule combined with linaclotide in the treatment of constipation-predominant irritable bowel syndrome （IBS-C）. METHODS A total of 97 IBS-C patients admitted to Nanyang First People’s Hospital between March 2022 and February 2024 were enrolled. Using a random number table method， patients were divided into control group （n＝46） and observation group （n＝51）. On the basis of routine treatment， the control group was given Linaclotide capsules orally， while the observation group received Linaclotide capsules combined with Shouhui tongbian capsule orally. The treatment course for both groups was 4 weeks. Clinical efficacy， Irritable Bowel Syndrome Severity Scale （IBS-SSS）， stool frequency， Bristol Stool Form Scale （BSFS）， Irritable Bowel Syndrome Quality of Life Questionnaire （IBS-QOL） score， gastrointestinal hormone levels， anorectal manometry parameters， and the occurrence of adverse reactions were compared between the two groups. RESULTS Two patients in the control group and three patients in the observation group dropped out due to adverse reactions. The effective rate in the observation group （87.50%） was significantly higher than that in the control group （68.18%）（P＜0.05）. Compared with pre-treatment， both groups showed significant increase in post-treatment stool frequency， BSFS score， serum substance P， and motilin levels. Conversely， IBS-SSS scores， IBS-QOL scores， serum vasoactive intestinal peptide levels， anal-rectal pressure difference， rectal compliance， rectal sensation threshold， and defecation threshold were significantly reduced （P＜0.05）. The observation group demonstrated superior outcomes to the control group （excluding rectal sensation and defecation thresholds， P＜0.05）. No significant difference in the incidence of adverse reactions was observed between the two groups （P＞0.05）. CONCLUSIONS Compared with linaclotide monotherapy， Shouhui tongbian capsule combined with linaclotide improves gastrointestinal hormone function and anorectal manometry parameters in IBS-C patients， alleviates clinical symptoms， improves quality of life， and exhibits favorable safety.

OBJECTIVES: To analyze the early clinical outcomes of the Xcor^TM transcatheter aortic valve replacement (TAVR) system in treating severe aortic stenosis. This study has been registered at Chinese Clinical Trial Registry (ChiCTR2200065593). METHODS: This single-arm, prospective clinical trial enrolled patients with severe aortic stenosis treated with the Xcor^TM TAVR system at the Section of Heart Valve & Coronary Artery Surgery, Guangdong Provincial People's Hospital. Perioperative and follow-up parameters were compared to evaluate differences in hemodynamic outcomes. All-cause mortality, aortic regurgitation, paravalvular leakage, cerebrovascular events, and reoperation were analyzed. RESULTS: Thirty-two patients with severe aortic stenosis were included (20 males, 12 females), with (70.9±4.3) years old and a Society of Thoracic Surgeons (STS) score of 6.45% (6.07%, 7.28%). Notably, 87.5% of patients had New York Heart Association (NYHA) class≥Ⅲ. All patients underwent successful Xcor^TM bioprosthesis implantation, achieving an immediate technical success rate of 100.0% and device success rate of 96.9%. Mean aortic valve gradient decreased from (55.21±23.17) mmHg (1 mmHg=0.133 kPa) to (8.45±5.30) mmHg, peak aortic jet velocity decreased from (4.66±0.85) m/s to (1.99±0.48) m/s, aortic valve area increased from (0.66±0.21) cm² to (2.09±0.67) cm² (all P<0.01). Intraoperative ventricular fibrillation occurred in one patient, while one case exhibited moderate prosthetic valve regurgitation and paravalvular leakage post-procedure. At 12-month follow-up, sustained improvements were observed in cardiac function, left ventricular ejection fraction, hemodynamic parameters, and SF-12 quality-of-life scores (all P<0.01). All-cause mortality was 12.5% (4/32), with 13.8% (4/29) developing moderate paravalvular leakage. CONCLUSIONS The Xcor^TM TAVR system demonstrated favorable early outcomes in severe aortic stenosis patients, significantly improving symptoms and hemodynamics while exhibiting excellent performance in preventing malignant arrhythmias and coronary obstruction.
Humans ; Male ; Female ; Aortic Valve Stenosis/surgery* ; Transcatheter Aortic Valve Replacement/methods* ; Aged ; Follow-Up Studies ; Prospective Studies ; Treatment Outcome ; Aged, 80 and over ; Heart Valve Prosthesis ; Middle Aged

Aim To systematically elucidate the molecular regulatory network of thermogenic function in brown adipose tissue(BAT)through multi-omics integrative analysis,to discover novel thermogenic regulatory genes and provide novel therapeutic targets for metabolic disorders.Methods A novel methodology for screening key genes regulating thermogenesis in BAT was constructed:First,differential expression analysis was performed on bulk RNA-seq data from murine BAT.Genes meeting the thresholds of ABS(log2FoldChange)＞1 and Padj＜0.05 were identified as differentially expressed genes.Intersectional analysis was then applied to obtain consensus upregulated and downregulated gene sets.Subsequently,scRNA-seq data of brown adipocytes were partitioned into high-expression group and low-expression group based on the expression levels of candidate genes.Differential analysis and gene set enrichment analysis(GSEA)were conducted between these groups to assess the correlation between candidate genes and thermogenic function.Finally,ex-perimental validation of selected candidate genes was performed using quantitative real-time PCR and Western blot.Results Bioinformatics analysis identified 65 thermogenesis-positive correlated genes and 7 thermogenesis-negative corre-lated genes.Subsequent quantitative PCR validation demonstrated that candidate genes Mfsd2a,Me1,Slc25a34,Pfkp,Ankrd9,Hsd17b12,Aldoa,Ctsz and Pcyt2 exhibited upregulation exceeding 5-fold,while Pid1 and Angpt1 showed down-regulation over 50％.All observed expression changes demonstrated statistical significance(P＜0.01)through rigorous hypothesis testing.These findings highlight the potential involvement of these genes in thermogenic regulation,warranting further functional investigations to elucidate their molecular mechanisms in energy metabolism pathways.Conclusions This study established a novel"computational screening → in silico knockout → experimental validation"paradigm for tar-get discovery,systematically unveiling the molecular network involved in BAT thermogenic regulation.This methodology is equally applicable for identifying key regulatory genes in other physiological or pathological processes.The study identi-fied 11 core genes that may play pivotal regulatory roles during BAT thermogenic activation,which could potentially offer novel pharmacological intervention targets to improve energy metabolism and treat obesity-related complications.

Aim To systematically elucidate the molecular regulatory network of thermogenic function in brown adipose tissue(BAT)through multi-omics integrative analysis,to discover novel thermogenic regulatory genes and provide novel therapeutic targets for metabolic disorders.Methods A novel methodology for screening key genes regulating thermogenesis in BAT was constructed:First,differential expression analysis was performed on bulk RNA-seq data from murine BAT.Genes meeting the thresholds of ABS(log2FoldChange)＞1 and Padj＜0.05 were identified as differentially expressed genes.Intersectional analysis was then applied to obtain consensus upregulated and downregulated gene sets.Subsequently,scRNA-seq data of brown adipocytes were partitioned into high-expression group and low-expression group based on the expression levels of candidate genes.Differential analysis and gene set enrichment analysis(GSEA)were conducted between these groups to assess the correlation between candidate genes and thermogenic function.Finally,ex-perimental validation of selected candidate genes was performed using quantitative real-time PCR and Western blot.Results Bioinformatics analysis identified 65 thermogenesis-positive correlated genes and 7 thermogenesis-negative corre-lated genes.Subsequent quantitative PCR validation demonstrated that candidate genes Mfsd2a,Me1,Slc25a34,Pfkp,Ankrd9,Hsd17b12,Aldoa,Ctsz and Pcyt2 exhibited upregulation exceeding 5-fold,while Pid1 and Angpt1 showed down-regulation over 50％.All observed expression changes demonstrated statistical significance(P＜0.01)through rigorous hypothesis testing.These findings highlight the potential involvement of these genes in thermogenic regulation,warranting further functional investigations to elucidate their molecular mechanisms in energy metabolism pathways.Conclusions This study established a novel"computational screening → in silico knockout → experimental validation"paradigm for tar-get discovery,systematically unveiling the molecular network involved in BAT thermogenic regulation.This methodology is equally applicable for identifying key regulatory genes in other physiological or pathological processes.The study identi-fied 11 core genes that may play pivotal regulatory roles during BAT thermogenic activation,which could potentially offer novel pharmacological intervention targets to improve energy metabolism and treat obesity-related complications.

Objective To observe the correlation between cortical thickness and pathological deposition of β-amyloid(Aβ)in patients with Alzheimer disease(AD)induced mild cognitive impairment(MCI)or dementia.Methods Totally 22 AD patients were prospectively enrolled and divided into dementia group(n=12)and MCI group(n=10)based on the degree of cognitive impairment,while 17 healthy individuals without cognitive impairment were recruited as control group.MR examination and 18F-florbutaben(18F-FBB)PET imaging were performed,the cortical thickness and Aβ deposition value(Centiloid[CL]value)were calculated and compared among 3 groups and between each 2 groups,then the correlation between the above two indexes was analyzed.Results The cortical thickness in dementia group,MCI group and control group was(2.18±0.14),(2.35±0.08)and(2.36±0.09)mm,respectively,with significant difference among 3 groups(P＜0.05).The cortical thickness in dementia group was significantly thinner than that in MCI group and control group(both P＜0.05).CL value in dementia group,MCI group and control group was 77.97(63.07,95.55),65.51(54.54,90.50)and-1.17(-9.66,4.88),respectively,with significant difference among 3 groups(P＜0.05).CL value in dementia group and MCI group were significantly higher than in control group(both P＜0.05).The cortical thickness was moderately negatively correlated with CL value in MCI group(r=-0.580,P=0.048)but not in the other 2 groups(both P＞0.05).Conclusion The cortical thickness was moderately negatively correlated with abnormal deposition of Aβ in patients with AD induced MCI,but was not during dementia.

Objective To observe the correlation between cortical thickness and pathological deposition of β-amyloid(Aβ)in patients with Alzheimer disease(AD)induced mild cognitive impairment(MCI)or dementia.Methods Totally 22 AD patients were prospectively enrolled and divided into dementia group(n=12)and MCI group(n=10)based on the degree of cognitive impairment,while 17 healthy individuals without cognitive impairment were recruited as control group.MR examination and 18F-florbutaben(18F-FBB)PET imaging were performed,the cortical thickness and Aβ deposition value(Centiloid[CL]value)were calculated and compared among 3 groups and between each 2 groups,then the correlation between the above two indexes was analyzed.Results The cortical thickness in dementia group,MCI group and control group was(2.18±0.14),(2.35±0.08)and(2.36±0.09)mm,respectively,with significant difference among 3 groups(P＜0.05).The cortical thickness in dementia group was significantly thinner than that in MCI group and control group(both P＜0.05).CL value in dementia group,MCI group and control group was 77.97(63.07,95.55),65.51(54.54,90.50)and-1.17(-9.66,4.88),respectively,with significant difference among 3 groups(P＜0.05).CL value in dementia group and MCI group were significantly higher than in control group(both P＜0.05).The cortical thickness was moderately negatively correlated with CL value in MCI group(r=-0.580,P=0.048)but not in the other 2 groups(both P＞0.05).Conclusion The cortical thickness was moderately negatively correlated with abnormal deposition of Aβ in patients with AD induced MCI,but was not during dementia.

Objective To summarize and analyze the preliminary clinical outcomes of the KokaclipTM transcatheter edge-to-edge mitral valve repair system for severe degenerative mitral regurgitation (DMR). Methods This study was a single-arm, prospective, single-group target value clinical trial that enrolled patients who underwent the KokaclipTM transcatheter edge-to-edge repair (TEER) system for DMR in the Department of Heart Surgery of Guangdong Provincial People's Hospital, Guangdong Cardiovascular Institute from June 2022 to January 2023. Differences in the grade of mitral regurgitation (MR) during the perioperative and follow-up periods were compared, and the incidences of adverse events such as all-cause death, thoracotomy conversion, reoperation, and severe recurrence of MR during the study period were investigated. Results The enrolled patient population consisted of 14 (50.0%) females with a mean age of 70.9±5.4 years. Twenty-eight (100.0%) patients were preoperatively diagnosed with typeⅡ DMR, with a prolapse width of 12.5 (11.0, 16.1) mm, a degree of regurgitation 4+ leading to pulmonary venous reflux, and a New York Heart Association cardiac function class≥Ⅲ. All patients completed the TEER procedure successfully, with immediate postoperative improvement of MR to 0, 1+, and 2+ grade in 2 (7.1%), 21 (75.0%), and 5 (17.9%) patients, respectively. Mitral valve gradient was 2.5 (2.0, 3.0) mm Hg. Deaths, thoracotomy conversion, or device complications such as unileaflet clamping, clip dislodgement, or leaflet injury were negative. Twenty-eight (100.0%) patients completed at least 3-month postoperative follow-up with a median follow-up time of 5.9 (3.6, 6.8) months, during which patients had a mean MR grade of 1.0+ (1.0+, 2.0+) grade and a significant improvement from preoperative values (P<0.001). There was no recurrence of ≥3+ regurgitation, pulmonary venous reflux, reoperation, new-onset mitral stenosis, or major adverse cardiovascular events. Twenty-two (78.6%) patients’ cardiac function improved to classⅠorⅡ. Conclusion The domestic KokaclipTM TEER system has shown excellent preliminary clinical results in selected DMR patients with a high safety profile and significant improvement in MR. Additional large sample volume, prospective, multicenter studies, and long-term follow-up are expected to validate the effectiveness of this system in the future.

Objective To analyze the long-term outcome of modified Morrow surgery (interventricular septal cardiomyectomy) in the treatment of hypertrophic obstructive cardiomyopathy (HOCM) in children. Methods The clinical data of the children with HOCM (aged≤14 years) who underwent modified Morrow surgery from January 2010 to August 2022 in Guangdong Provincial People's Hospital were retrospectively analyzed, including changes in hospitalization status, perioperative period, and long-term 15-lead electrocardiogram and echocardiography. Results A total of 29 patients were collected, including 22 males and 7 females, aged 10.00 (5.00, 12.00) years. Five (17.9%) patients had New York Heart Association (NYHA) heart function grade Ⅲ or Ⅳ. Ventricular septal cardiomyectomy was performed in all patients. All 29 patients survived and their cardiac function recovered after operation. Before discharge, right bundle branch block was observed in 2 patients and left bundle branch block in 6 patients. After surgery, in the left ventricular septal cardiomyectomy, the left atrial diameter decreased (P＜0.001), left ventricular end-systolic diameter increased (P=0.009), the peak pressure gradient of left ventricular outflow tract decreased (P＜0.001), and the thickness of ventricular septum decreased (P＜0.001). The systolic anterior motion of mitral valve disappeared and mitral regurgitent jet area decreased (P＜0.001). The flow velocity and peak pressure gradient of right ventricular outflow tract also decreased in the patients who underwent right ventricular septal cardiomyectomy. The average follow-up of the patients was 69.03±10.60 months. All the patients survived with their NYHA cardiac function grading Ⅰ or Ⅱ. No new-onset arrythmia event was found. Echocardiography indicated that the peak pressure gradient of the left ventricular outflow tract remained low (P<0.001). Moderate mitral regurgitation occurred in 2 patients, and left ventricular outflow tract obstruction with moderate mitral regurgitation occurred in 1 patient after simple right ventricular septal cardiomyectomy. Conclusion Right ventricular or biventricular obstruction is frequent in the children with HOCM and they usually have more symptoms before surgery. Modified Morrow surgery can effectively relieve outflow tract obstruction and improve their cardiac function. The long-term outcome is satisfactory. However, the posterior wall of the left ventricle remains hypertrophic. Also, there is an increased risk of a conduction block.

This project starts with the teaching of clinical anatomy for eight-year medical students, selects specialists to enter the courses according to the content of clinical anatomy, and explores the deep integration of basic and clinical education. This study used the self-made questionnaire to evaluate the effect of the integrated teaching model, and Likert scale was used to score. Meanwhile, the correlation between the scores of each question and total points was analyzed with the item analysis. Moreover, we assessed the principal components through the exploratory factor analysis. The results showed that more than 95% questioned students thought the preclinical education integrated with clinical medicine teaching model is necessary and practical, which can assist medical students in the anatomical structure learning combined with clinical disease, and meanwhile cultivate students' clinical thinking. Only fewer than 10% thought it can connect the basic knowledge and clinical cases effectively, and over 35% thought there are difficulties. Additionally, more than half students (54%) hold the negative attitude which clinicians can't completely replace basic teachers in teaching. Our finding suggests that the integrated teaching model is attractive and feasible. Nonetheless, clinicians can’t replace preclinical teachers completely in the clinical anatomy education yet.

Objective To study the influencing factors of blood stasis constitution and provide a basis for treating blood stasis-related diseases by traditional Chinese medicine (TCM) constitution identification. Methods Data were collected using the self-developed TCM constitution identification platform based on B/S model by the project team. The obtained data were divided into blood stasis constitution and normal constitution groups. The differences of the categorical type influencing factors (gender, birth mode, feeding mode within four months of birth, family history, marital status, eating habits, sleeping habits, exercise habits, emotional state, stress situation, and living environment) and the quantitative type influencing factors (sleep time, age, and mother's age at birth) on the constitution of the two groups were analyzed. In the single-factor analysis, the Pearson's chi-square test was selected for the categorical variable, and the independent sample t test and Mann-Whitney U nonparametric test were selected for the quantitative variables according to whether they conformed to the positive-terrestrial distribution; the binary logistic stepwise regression method was selected for the multi-factor analysis. Results The data of 318 cases were collected from the TCM composition identification platform, and 159 cases of blood stasis constitution were used as the experimental group and 159 cases of normal constitution were used as the control group. The Pearson's chi-square test yielded significant differences (P < 0.05) in the effects of gender, pressure situation, family history, living environment, emotional state, exercise habits, and dietary habits on blood stasis constitution. The independent samples t test yielded differences in sleep duration between the blood stasis constitution and normal constitution populations (P < 0.05), which meant sleep duration of the blood stasis constitution population was less than that of the normal constitution population. The Mann-Whitney U nonparametric test results accepted the original hypothesis that there was no difference in the distribution of age and mother’s age at birth across constitution types (P > 0.05). Binary logistic regression analysis showed that gender, family history, marital status, living environment, exercise habits, and emotional state were risk factors for blood stasis constitution (P < 0.05). Conclusion Gender, family history, living environment, emotional state, and exercise habits were significant influencing factors of blood stasis constitution. Blood stasis constitution populations can pay more attention to these influencing factors in their daily life for the prevention and reconciliation of blood stasis constitution.