1.Trend analysis of pulmonary tuberculosis incidence among the elderly in Shanghai, 2014‒2023
Yu HUANG ; Lixin RAO ; Biao XU ; Qi ZHAO ; Xin SHEN
Shanghai Journal of Preventive Medicine 2025;37(3):227-233
ObjectiveTo describe the epidemiological characteristics and trend of pulmonary tuberculosis among the elderly in Shanghai from 2014 to 2023, to estimate the incidence between 2024‒2025, so as to provide references for optimizing the prevention and control strategies of pulmonary tuberculosis for elderly in Shanghai. MethodsData of pulmonary tuberculosis patients aged ≥60 years in Shanghai registered in the Tuberculosis Registration and Management System of Chinese Center for Disease Control and Prevention from 2014 to 2023 was derived to describe the demographic characteristics of the elderly patients with pulmonary tuberculosis, and to calculate the reported incidence rate and annual percentage change (APC) of pulmonary tuberculosis. The autoregressive integrated moving average (ARIMA) model was constructed using monthly reported incidence data from January 2014 to June 2023, and data from July to December in 2023 were used to validate the model and predict the reported incidence rate of pulmonary tuberculosis among elderly in 2024 and 2025. ResultsA total of 19 208 elderly pulmonary tuberculosis patients were registered and reported in Shanghai from 2014 to 2023, with an average annual reported incidence rate of 35.04/100 000. The reported incidence rate of pulmonary tuberculosis in elderly showed an overall decreasing trend, APC=-3.34% (t=-3.360,P=0.010). While, the proportion of elderly pulmonary tuberculosis patients showed a yearly increasing trend among the total registered and reported cases, APC=5.65% (t=10.820, P<0.001). The difference in the average annual reported incidence rate of pulmonary tuberculosis in elderly was statistically significant in different regions (χ2=31.762, P=0.007), with the central urban areas(33.23/100 000) being lower than that in suburban areas (36.46/100 000), and the annual decreasing rate was faster in central urban area, APC=-4.88% (t=-4.838, P<0.001) and -2.76% (t=-2.811, P=0.023), respectively. The incidence rate was significantly higher in males than that in females (χ2=514.395, P<0.001). Additionally, the difference in reported incidence rate was statistically significant among different age groups(χ2=119.751,P<0.001), among which patients aged ≥80 years had the highest average annual incidence rate (59.69/100 000), and those aged ≤60 years had the lowest average annual incidence rate (28.57/100 000). Compared with the non-residential permanent elderly population (47.68/100 000), the average annual incidence rate of pulmonary tuberculosis among the elderly with household registration in Shanghai was lower (33.82/100 000) (χ2=24.295, P<0.001). The ARIMA (0,0,1) (0,1,1) 12 model was used to predict the incidence rate of pulmonary tuberculosis among the elderly in Shanghai in 2024 and 2025, and which was predicted to be 37.41/100 000 and 35.92/100 000, respectively. ConclusionThe reported incidence rate of pulmonary tuberculosis among the elderly in Shanghai showed an overall yearly downward trend from 2014 to 2023, but its proportion in the total number of reported pulmonary tuberculosis cases increased year by year. Prevention and control efforts should still not be slackened and emphasis should be placed on male, suburban and non-residential permanent elderly populations.
2.Mid- to long-term outcomes of median sternotomy ascending-descending thoracic aortic bypass grafting for complex aortic coarctation
Yongqiang JIN ; Lixin FAN ; Enrui ZHANG ; Xiaoya ZHANG ; Hui XUE ; Zhonghua XU ; Qingyu WU
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2025;32(07):963-967
Objective To investigate the mid- to long-term follow-up results of ascending aorta (AAO)-descending thoracic aorta (DTA) bypass grafting via median sternotomy incision for the treatment of complex aortic arch coarctation. Methods A retrospective analysis was conducted on the clinical data of patients with complex aortic arch coarctation who underwent AAO-DTA bypass grafting via median sternotomy incision at the First Hospital of Tsinghua University from August 2004 to May 2017. Results A total of 7 patients were enrolled, including 4 males and 3 females, aged (13.3±4.6) years, and weighted (40.2±12.2) kg. Six (85.7%) patients had concomitant upper limb hypertension. Four patients were aortic arch coarctation combined with intracardiac malformations, two were post-operative restenosis, and 1 was post-operative restenosis combined with intracardiac malformation. All patients underwent surgery under cardiopulmonary bypass. There were no perioperative deaths or major complications. The pre-operative upper-lower limb pressure difference was (39.3±19.2) mm Hg, which decreased to (2.9±2.7) mm Hg post-operatively (P<0.01). The follow-up period was (14.9±5.9) years. There were no long-term deaths or artificial graft-related complications. Except for one patient who still had mild hypertension, the blood pressure of the remaining patients returned to normal. Conclusion AAO-DTA bypass grafting via median sternotomy incision for the treatment of complex aortic arch coarctation can effectively reduce upper limb blood pressure and the upper-lower limb arterial pressure difference, has fewer complications, and demonstrates satisfactory mid- to long-term efficacy.
3.Introduction to Implementation Science Theories, Models, and Frameworks
Lixin SUN ; Enying GONG ; Yishu LIU ; Dan WU ; Chunyuan LI ; Shiyu LU ; Maoyi TIAN ; Qian LONG ; Dong XU ; Lijing YAN
Medical Journal of Peking Union Medical College Hospital 2025;16(5):1332-1343
Implementation Science is an interdisciplinary field dedicated to systematically studying how to effectively translate evidence-based research findings into practical application and implementation. In the health-related context, it focuses on enhancing the efficiency and quality of healthcare services, thereby facilitating the transition from scientific evidence to real-world practice. This article elaborates on Theories, Models, and Frameworks (TMF) within health-related Implementation Science, clarifying their basic concepts and classifications, and discussing their roles in guiding implementation processes. Furthermore, it reviews and prospects current research from three aspects: the constituent elements of TMF, their practical applications, and future directions. Five representative frameworks are emphasized, including the Consolidated Framework for Implementation Research (CFIR), the Practical Robust Implementation and Sustainability Model (PRISM), the Exploration, Preparation, Implementation, Sustainment (EPIS)framework, the Behavior Change Wheel (BCW), and the Normalization Process Theory (NPT). Additionally, resources such as the Dissemination & Implementation Models Webtool and the T-CaST tool are introduced to assist researchers in selecting appropriate TMFs based on project-specific needs.
4.Effect of ultrasound-guided adductor canal block with bupivacaine liposome on analgesia in elderly patients undergoing total knee arthroplasty
Chao FAN ; Junhui ZHOU ; Quanpeng SUN ; Yongjie ZHANG ; Lixin QUAN ; Wei MEI ; Junwei GAO ; Weijie BAI ; Wenjie BO ; Ludan XU
Chinese Journal of Anesthesiology 2024;44(7):816-820
Objective:To evaluate the effect of ultrasound-guided adductor canal block with bupivacaine liposome on analgesia in elderly patients undergoing total knee arthroplasty.Methods:This was a prospective study. Sixty American Society of Anesthesiologists Physical Status classification Ⅱ or Ⅲ patients, regardless of gender, aged 65-83 yr, weighing 50-80 kg, scheduled for elective unilateral total knee arthroplasty under subarachnoid anesthesia from April 2023 to January 2024 in Zhengzhou Orthopaedic Hospital, were divided into 2 groups ( n=30 each) using a random number table method: bupivacaine liposome group (LB group) and ropivacaine group (R group). Ultrasound-guided adductor canal block was performed at 30 min before subarachnoid anesthesia, bupivacaine liposome diluent 20 ml (133 mg) was injected in LB group, and 0.5% ropivacaine 20 ml was injected in R group. Patient-controlled intravenous analgesia was performed after operation, and tramadol was used for rescue analgesia when the visual analogue scale (VAS) score ≥3. VAS scores at rest and during activity were recorded at 8, 12, 24, 48 and 72 h after surgery. The time to the first pressing analgesia pump and rescue analgesia were recorded within 72 h after surgery. The quadriceps muscle strength was measured at 1 day before surgery and 12, 24, 48 and 72 h after surgery. The knee joint range of motion was assessed at 1 day before surgery and 24, 48 and 72 h after surgery. Patient′s satisfaction with analgesia was recorded at 72 h after surgery. The adverse reactions within 72 h after surgery were also recorded. Results:Compared with R group, VAS scores at rest and during activity were significantly decreased at 12, 24, 48 and 72 h after surgery, the time to the first pressing analgesia pump was prolonged, the rate of rescue analgesia after surgery was decreased, the score for the patient′s satisfaction with analgesia was increased, the knee joint range of motion was increased ( P<0.05), and no significant change was found in the quadriceps muscle strength and incidence of adverse reactions in LB group ( P>0.05). Conclusions:Ultrasound-guided adductor canal block with bupivacaine liposome provides better analgesia than ropivacaine in elderly patients undergoing total knee arthroplasty.
5.A pedigree of pseudohypoaldosteronism type Ⅱ and review of literature
Lixin DING ; Ping ZHANG ; Hui WANG ; Li FENG ; Xiaohua GUAN ; Qimei YANG ; Li ZHU ; Wenlong XU ; Xinping ZHANG ; Liyuan LI ; Jinjuan CAO
Chinese Journal of Endocrinology and Metabolism 2024;40(6):521-524
The clinical data, laboratory test, and gene mutations were collected from a family with pseudohypoaldosteronism type II(PHA2). The proband, aged 1 year and 7 months, presented with hyperkalemia(6.69 mmol/L; reference range 3.5-5.3 mmol/L), blood pressure of 110/68 mmHg(normal<106/61 mmHg, 1 mmHg=0.133 kPa), blood chloride of 111.5 mmol/L(reference 99-110 mmol/L), blood HCO 3- of 17.1 mmol/L(reference 22-29 mmol/L), estimated glomerular filtration rate of 128.5 mL·min -1·(1.73 m 2) -1[>90 mL·min -1·(1.73 m 2) -1], and blood renin concentration of 0.30 μIU/mL(reference 4.2-45.6 μIU/mL). The mother and maternal grandfather also exhibited normal renal function with hyperkalemia, hypertension, hyperchloremia, metabolic acidosis, and low renin. Genetic testing revealed a heterozygous missense mutation(c.1685A>G, p. E562G) in exon 7 of the no-lysine kinase 4(WNK4) gene. Treatment with hydrochlorothiazide was effective. Literature review comparing this E562G pedigree with other WNK4 variants suggested clinical heterogeneity of WNK4 mutations. For unexplained hyperkalemia, especially with concurrent hypertension, PHA2 should be considered early for genetic screening to prevent misdiagnosis or delayed diagnosis.
6.Review on the cognition of hypoglycemia in community diabetic patients
Jianying DONG ; Xiuqi QIAO ; Xu FENG ; Renfei ZHANG ; Lixin GUO ; Qi PAN
Chinese Journal of General Practitioners 2024;23(10):1106-1111
Hypoglycemia can lead to physical and psychological disorders, which are associated with a decrease in quality of life and an increase in mortality risk. Compared to those hospitalized, homebound and community patients have a higher incidence of hypoglycemia and are more vulnerable to the disorders. Hypoglycemia is preventable and treatable, timely intervention can preserve physical well-being of patients and reduce the mortality risk. This article reviews the incidence of hypoglycemia in community diabetic patients, and the knowledge and awareness of patients about hypoglycemia, including the onset inducement, symptoms, hazards, coping and prevention, to provide a reference for the prevention and treatment of hypoglycemia in diabetic patients.
7.Pathogenesis of flunarizine-induced parkinsonism from gut-brain axis perspective
Nan DING ; Lixin PAN ; Changlin LIAN ; Zhifeng XU ; Yukai WANG ; Fen ZHANG ; Guanghua ZHAO ; Xiaojue LIANG ; Wenjie LAI ; Weiqi ZENG ; Jingjuan CHEN ; Guohua ZHANG
Chinese Journal of Neuromedicine 2024;23(4):333-339
Objective:To explore the pathogenesis of flunarizine-induced parkinsonism from gut-brain axis perspective.Methods:Thirty male C57BL/6 mice were randomly divided into control group and flunarizine group ( n=15). Mice in the control group were given 0.1 mL 50% polyethylene glycol 400+50% saline by gavage once/d for 2 weeks, while mice in the flunarizine group were given 6 mg/mL flunarizine+50% polyethylene glycol 400+50% saline by gavage at a daily dose of 30 mg/kg for 2 weeks. Body mass was recorded 1, 3, 5, 7, 10 and 14 d after drug administration, and motor function was assessed by rotarod test 14 d after drug administration; 16s RNA sequencing was performed in the feces to observe the intestinal flora; intestinal transit function was detected by Evans blue by gavage; and then, the mice were sacrificed and homogenate or frozen sections (brain and intestinal tissues) were prepared; dopamine-ergic neuron expression was detected by Western blotting; RT-qPCR was applied to detect the expressions of inflammatory factors in the substantia nigra, and immunofluorescent staining was used to detect the expressions of ZO-1 and Claudin-5 in the intestinal epithelial tissues. Results:Compared with the control group, the flunarizine group had lower body mass ratio 1, 3, 5, 7, 10 and 14 d after drug administration (ratio to body mass before drug administration). Compared with the control group, the flunarizine group had significantly shortened residence time in rod rotating and lower rotational speed when falling ( P<0.05). Compared with the control group, the flunarizine group had decreased tyrosine hydroxylase protein in the substantia nigra without significant difference ( P>0.05). Compared with the control group, the flunarizine group had significantly increased interleukin-6 and tumor necrosis factor-α in the substantia nigra (1.00±0.00 vs. 2.79±0.83; 1.00±0.00 vs. 3.39±1.37), significantly lower intestinal Evans blue propulsion rate (80.67%±4.51% vs. 50.67%±6.03%), and statistically decreased ZO-1 and Claudin-5 expressions in the colonic epithelial tissues (27.01±1.41 vs. 16.32±2.83; 37.00±2.80 vs. 24.52±2.12, P<0.05). Totally, 576 microorganisms were noted in both control group and flunarizine group, 744 in the control group alone, and 634 in the flunarizine group alone. The intestinal flora β diversity indices in the 2 groups were significantly different based on weighted Unifrac-principle coordinates analysis (PCoA, PCoA1: 39.88%; PCoA2: 30.69%). Compared with the control group, the microbial colony structure of mice in flunarizine group was dominated by phylum thick-walled bacteria and phylum warty microbacteria, and by families Muribaculaceae, Lachnospiraceae and Akkermansiaceae. Compared with the control group, the flunarizine group had significantly decreased relative abundance of Ackermannia spp. and Lactobacillus spp. in the intestinal flora ( P<0.05). Conclusion:Flunarizine may contribute to the pathogenesis of DIP by causing structural disturbances in the intestinal flora and inducing neuroinflammation based on the gut-brain axis.
8.Clinical efficacy of single-incision plus one-port 3D laparoscopic pancreaticoduodenectomy
Guo WU ; Jian XU ; Gang YANG ; Weinan LI ; Lixin ZHANG ; Kaifeng ZHAO ; Bao YING ; Jingdong LI
Chinese Journal of Digestive Surgery 2024;23(5):739-745
Objective:To investigate the clinical efficacy of single-incision plus one-port three dimensional (3D) laparoscopic pancreaticoduodenectomy (SILPD+1).Methods:The retrospective cohort study was conducted. The clinicopathological data of 40 patients who underwent 3D laparos-copic pancreaticoduodenectomy in Affiliated Hospital of North Sichuan Medical College from January to October 2023 were collected. There were 24 males and 16 females, aged (63±10)years. Of the 40 patients, 18 cases undergoing SILPD+1 were divided into the SILPD+1 group, and 22 cases under-going conventional five-trocar 3D laparoscopic pancreaticoduodenectomy (CLPD) were divided into the CLPD group. Observation indicators: (1) surgical situations; (2) postoperative situations and complications. Measurement data with normal distribution were represented as Mean± SD, and comparison between groups was conducted using the independent t test. Measurement data with skewed distribution were represented as M( Q1, Q3), and comparison between groups was conducted using the Mann-Whitney U test. Count data were described as absolute numbers, and comparison between groups was conducted using the chi-square test or Fisher exact probability. Comparison of ordinal data was conducted using the Mann-Whitney rank sum test. Results:(1) Surgical situa-tions. Seventeen patients of the SILPD+1 group completed surgery successfully, and the rest of one patient with an inflammatory mass of the pancreatic head was converted to open surgery due to unclear boundary with mesenteric blood vessels and severe adhesion of surrounding tissues. All patients of the CLPD group completed surgery successfully, without conversion to open surgery. There was no significant difference in conversion to open surgery between the two groups ( P>0.05), and there was no significant difference in the volume of intraoperative blood loss, intraoperative blood transfusion or operation time ( P>0.05). (2) Postoperative situations and complications. There was no significant difference in tumor diameter, the number of lymph node dissected, the number of positive lymph node, R 0 resection, tumor type, time to postoperative first flatus, time to postopera-tive first intake liquid food, tome to first out-of-bed activity, time to postoperative drainage tube removal, duration of postoperative hospital stay, postoperative bleeding, pancreatic fistula, chylous leakage, delayed gastric emptying, abdominal fluid collection, incision infection, classification of com-plications between the two groups ( P>0.05). Postoperative pain score of the SILPD+1 group and the CLPD group was 5.0(4.5,6.0) and 6.5(6.0,7.0), respectively, showing a significant difference ( Z=-3.61, P<0.05). Both groups of patients had no occurrence of biliary fistula or abdominal infection after surgery, and there was no readmission within 30 days after surgery or no death within 90 days after surgery. Conclusions:Compared with CLPD, SILPD+1 is safe and feasible, with less postoperative pain. While ensuring oncological outcomes, SILPD+1 does not increase surgical time, postoperative hospital stay, or incidence of postoperative complications.
9.Calculating Airway Resistance and Lung Compliance at Expiration End under Non-invasive Positive Pressure Ventilation:An Experimental Study
Yueyang YUAN ; Lixin XIE ; Yuqing CHEN ; Xingshuo HU ; Haoxuan HUANG ; Lixiong LI ; Qiang XU
Journal of Medical Biomechanics 2024;39(4):750-755
Objective Airway resistance(R)and lung compliance(C)under non-invasive positive pressure ventilation(NPPV)conditions were measured using a brief pressure release at the end of expiration,and the measurement accuracy was also evaluated.Methods An NPPV respirator was developed by programming a method for calculating R and C.An experimental platform based on the active servo lung ASL5000 was designed.By simulating a healthy adult(R=5 cmH2 O and C=50 mL/cmH2 O,1 cmH2 O=0.098 kPa),an adult patient with acute respiratory distress syndrome(R=10 cmH2 O and C=30 mL/cmH2 O),and an adult patient with chronic obstructive pulmonary disease(R=20 cmH2 O and C=50 mL/cmH2 O),a series of experiments for calculating the R and C were conducted.Results The maximum relative error of R was-12.67%,which occurred in calculating the R of an average adult.The maximum relative error of C was 17.37%,which occurred when calculating the C values of patients with acute respiratory distress syndrome.Each group of data was analyzed using a paired t-test,which showed statistically significant differences(P>0.05).Conclusions The calculation method for R and C at the end of expiration during NPPV is feasible,and its realization and application will be beneficial for achieving precise and personalized respiratory ventilation.
10.Exogenous GDF11 improves vascular remodeling in hypertensive rats by regulating LOX-1-mediated endoplasmic reticulum stress pathway
Zhengdong DAI ; Liangkun HU ; Wei WAN ; Lixin XU
Chinese Journal of Arteriosclerosis 2024;32(10):850-856
Aim To investigate the effect of exogenous growth differentiation factor 11(GDF11)on vascular re-modeling in hypertensive rats through regulating the endoplasmic reticulum stress pathway mediated by lectin-like oxidized low density lipoprotein receptor-1(LOX-1).Methods Rats were randomly divided into control group,model group(Ang Ⅱ-induced hypertension rat model group),r-GDF11 group,Ab-LOX-1 group,r-GDF11+r-LOX-1 group,with 10 rats in each group.The changes of caudal arterial blood pressure in rats were detected by animal non-invasive blood pres-sure meter;the morphology of aortic vessels was evaluated by hematoxylin-eosin(HE)staining;the collagen deposition in aortic tissue was evaluated by Masson staining;the expression of GDF11,LOX-1 and endoplasmic reticulum(ER)stress related proteins in aortic tissues were detected by Western blot.Results Compared with the control group,the blood pressure of rats in the model group was increased,the media thickness(MT)and MT/lumen diameter(LD)of aortic tis-sue were increased,and the LD of aortic tissue was decreased(all P<0.05);Collagen volume fraction(CVF)value,the expression of glucose regulated protein 78(GRP78)and activating transcription factor 6(ATF6)protein,the ratio of phosphorylated PKR-like endoplasmic reticulum regulating kinase(p-PERK)/PERK and phosphorylated inositol requiring enzyme 1α(p-IRE1α)/IRE1α in aortic tissue were increased(all P<0.05).Compared with the model group,the blood pressure of rats in the r-GDF11 group and Ab-LOX-1 group was decreased,the MT and MT/LD of aortic tissue were de-creased,and the LD of aortic tissue was increased(all P<0.05);CVF value,the expression of GRP78 and ATF6 protein,p-PERK/PERK and p-IRE1α/IRE1α in aortic tissue were decreased(all P<0.05).Compared with the r-GDF11 group,the blood pressure of rats in the r-GDF11+r-LOX-1 group was increased,the MT and MT/LD of aortic tissue were increased,and the LD of aortic tissue was decreased(all P<0.05);CVF value,the expression of GRP78 and ATF6 protein,the p-PERK/PERK and p-IRE1α/IRE1α in aortic tissue were increased(all P<0.05).Conclusion Exogenous GDF11 im-proves vascular remodeling in hypertensive rats through inhibiting LOX-1-mediated endoplasmic reticulum stress pathway.

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