BACKGROUND:The repair process of myocardial injury involves complex cellular and molecular mechanisms,especially mitochondrial calcium homeostasis,macrophage autophagy and pyroptosis pathways.Traditional Chinese medicine(TCM)has shown significant clinical efficacy in improving myocardial injury,but its mechanism of action needs to be thoroughly investigated. OBJECTIVE:To investigate the role of mitochondrial calcium homeostasis-mediated macrophage autophagy and pyroptosis pathways in myocardial injury,and to summarize the progress of TCM in this field. METHODS:A computerized search was performed for relevant literature from the database inception to March 2024 in the Web of Science,PubMed and CNKI.The search terms were"mitochondrial calcium homeostasis,macrophage autophagy,macrophage pyroptosis,traditional Chinese medicine,myocardial injury,myocardial injury reperfusion"in Chinese and English.Through literature review,we analyzed the relationship between mitochondrial calcium homeostasis and macrophage autophagy and pyroptosis,explored the mechanism of their roles in myocardial injury,and summarized the pathways of multi-targeted,multi-pathway effects of TCM. RESULTS AND CONCLUSION:The maintenance of mitochondrial calcium homeostasis has been found to be closely related to the normal function of cardiomyocytes.Macrophages can participate in the repair process of myocardial injury through autophagy and pyroptosis pathways.Autophagy contributes to cell clearance and regulation of inflammatory response,while pyroptosis affects myocardial repair by releasing inflammatory factors.TCM regulates mitochondrial calcium homeostasis and macrophage function through multiple mechanisms.For example,astragalosid regulates calcium homeostasis by lowering mitochondrial membrane potential and inhibiting cytochrome C,and epimedium glycoside plays a role in reducing β-amyloid deposition.In addition,herbal compounds and single drugs promote myocardial repair by activating or inhibiting specific signaling pathways,such as PI3K/AKT and nuclear factor-κB signaling pathways.Future studies should focus on the interactions between mitochondrial calcium homeostasis,autophagy and pyroptosis pathways,as well as how TCM can exert therapeutic effects through these pathways to provide new strategies and drugs for the treatment of myocardial injury.

Hepatic fibrosis （HF） is a pathological process of abnormal repair of liver tissue structure caused by chronic liver injury， and its pathogenesis has not been fully clarified. Related studies have shown that programmed cell death may be associated with the onset of HF， and traditional Chinese medicine （TCM） has a significant effect in regulating programmed cell death to intervene against HF. This article reviews the main mechanism of the influence of programmed cell death on HF and discusses the possible mechanism of TCM regulation of programmed cell death in improving HF， which provides new ideas for TCM prevention and treatment of HF.

Objective:This study defined mid-term results of a policy of single-stage repair of interrupted aortic arch associated cardiac anomalies.Methods:Between October 2012 and June 2019, 38 patients with interrupted aortic arch were evaluated for short- and mid-term results after surgical treatment, the average age of patients was(12±7) days and the mean body weight was(3.3±0.5)kg.29 patients belonged to IAA type A, and 7 patients to type B, and 2 patients belonged to IAA type C, 30 patients were complicated with ventricular septal defect, atrial septal defect, and patent ductus arteriosus, two complicated with bicuspid aortic valve, four complicated with Taussig-Bing malformation and two with double outlet right ventricle, one with truncus arteriosus(A4), one with aortopulmonary window, one with left ventricle outflow tract obstruction. Single-stage repair was performed in all patients with cardiac anomalies.Results:Early mortality was 5.2%(2 cases), one was die for low cardiac output syndrome, the other die of septic shock. Median CPB time was 138 min(90-305 min), and median aortic cross clamping time was 68 min(47-163 min). Hospital day was 25d( 13-52 days).32 patients were followed-up, median time 34 months(9-85months). 2 patients(6.0%) were mild pulmonary stenosis pressure(20-25 mmHg), 3 patients(9.3%) suffer aortic anastomosis mild stnosis(21-44)mmHg.1 patient(3.1%) LVOTO was repaired ten months after the repair of interrupted aortic arch. The left broncus of of one patient was mild stenosis but without dyspnea.Conclusion:Single-stage end -to-side anastomosis repair of interrupted aortic arches in neonatal and repair of associated cardiac anomalies is safe and have low effective with low motality.

Objective:To investigate the efficacy of descending aortic translocation in relieving the compression of trachea or bronchus caused by aortic deformity.Methods:From January 2017 to July 2019, a total of 11 patients with distal trachea or proximal bronchial stenosis caused by aortic deformity were treated with descending aortic translocation. Cardiac CT and fiberoptic bronchoscopy were performed before surgery. The median age was 55(23-540) days, and the body weight was 4(2.1-9.0)kg. Five patients had a special type of vascular ring(left aortic arch with right descending aorta, small aortic window with funnel chest; left aortic arch with right descending aorta and right artery ligament, vagus right subclavian artery, combined with trachea, carina and left and right bronchial stenosis in 1 case; Right aortic arch with left descending aorta, combined with tracheomalacia stenosis in 1 case; Right aortic arch with left descending aorta combined with broad tracheal stenosis and left pulmonary dysplasia in 1 case) compressed tracheal or bronchial tube in 5 cases. Three patients with left main bronchus constriction after traditional arch disconnection surgery. 3 patients with left main bronchus stenosis before coarctation or interrupted aortic arch.Surgical methods: Descending aortic translocation was performed through a midline sternotomy with cardiopulmonary bypass and deep hypothermia.The proximal descending aorta was transected distal to the left subclavian artery, proximal sutures were performed, and the distal brought up though the transverse sinus caudad to the right pulmonary artery and tracheal carina, and anastomosed in end-to-end fashion to the ascending aorta, and simultaneous correction was performed with intracardiac malformations, such as airway plasty was performed at the same time without improvement after compression of tracheal stenosis.Results:There was no death in the whole group. Median cardiopulmonary bypass was 180(136-337)min with an median aortic cross-clamp time of 51(30-84)min; Median absence of perfusion to the descending thoracic aorta 34(21-50)min .Tracheal compression was effectively relieved in 5 patients, and airway plasty was performed simultaneously in 6 patients due to persistent tracheal softening and stenosis. All patients had resolution of symptoms.There was only one case anastomotic stenosis after descending aortic translocation.The mean follow-up was(18.0±9.4)months.Conclusion:Descending aortic translocation can effectively relieve this kind of pressure due to aortic deformity.

Objective To summarize the clinical characteristics and therapeutic effect of congenital vascular rings in in-fants. Methods The clinical data of 54 children with vascular rings were retrospectively analyzed from August 2011 to June 2017 at our center for surgical treatment. Age 2 days to 11 months,the median age was 1 months;weight 1. 4 - 9. 4 kg,the average weight of(4. 52 ± 1. 89)kg. The type of vascular ring includes 21 cases of double aortic arch,right aortic arch with left aortic duct / ligament with or without vagal left subclavian artery in 14 cases,9 cases of pulmonary artery suture,left aortic arch with right aortic duct / ligament with or without 5 cases of oblique right subclavian artery,3 cases of nameless arterial com-pression syndrome,2 cases of other vascular rings. All cases underwent echocardiography,chest radiography,and CT scan of the heart,and 42 cases were examined before operation or intraoperative bronchoscopy. 39 cases(72％)had tracheal stenosis. Results Twenty-six patients underwent extracorporeal circulation underwent vascular anteroposterior surgery with an average extracorporeal circulation time of( 160 ± 61)min and 28 patients underwent extracorporeal circulation. Postoperative mechani-cal ventilation 1 to 22 days,the median number of days 2 days;hospitalization time 7 to 62 days,the median of 19 days,hos-pital death in 2 cases(3. 7％). Discharge patients were followed up for 2 to 74 months,respiratory symptoms to varying degrees to ease or disappear,discharged in 3 cases. Conclusion Airway stenosis is a serious complication of the vascular ring. CT is the best way to determine the vascular ring. To avoid serious airway complications,the vascular ring should be operated as soon as possible,and the airway stenosis and intracardiac malformation Children suggested concurrent treatment,this can improve the survival rate of surgery and improve the prognosis of children.

Objective To develop a highly sensitive luminescent reagent for bloodstain testing at forensic crime scenes.Methods Based ontheprincipleof ECL luminescence and the ping-pong conjugate activation principle of chemical electronic chain,this project developed a new type of highly sensitive luminescent reagent for bloodstain testing by usingthe uniform design of experimental methods to optimize the conditions andsynthesize several new compounds.Results The bloodstain testing luminescent reagentdeveloped in this project has high sensitivity andlongluminescence time.In the case of blood samples diluted by 1,000 times,reading the fluorescence withChemiScope 3300 chemiluminescence imaging system,the maximumvalue of gray scale reached 56,and the luminescence time lasted for 10 minutes.Conclusion The project has successfully developed a highly semitivebloodstain testing reagentthat could be applied to crime scene investigation.

Objective To evaluate the miRNA change between hypothermia circulatory arrest at different temperature and its impact on intestinal protection.Methods Sixteen piglets were randomly(n =4) divided into four groups:deep hypothermia circulatory arrest (DHCA,18℃) group,moderate hypothermia circulatory arrest(MHCA,24℃) group,cardiopulmonary bypass(CPB) group and sham operation(SO) group.They were subjected to 80 min hypothermia circulatory arrest,305 min CPB or thoracotomy,respectively.Pick-and-mix custom miRNA real-time PCR panels were utilized to detect intestinal samples.miRNA expression between DHCA and MHCA were compared directly(DHCA vs.MHCA) and indirectly(DHCA/SO vs.MHCA/SO,DHCA/CPB vs.MHCA/CPB).Results Exposure to DHCA caused less intestinal miRNA dysregulation than MHCA.Besides,seven miRNAs(miR-122,miR-145-5p,miR-421-5p,miR-99a,miR-365-5p,miR-31 and miR-192)were differentially expressed between the two hypothermia circulatory arrest groups.Conclusion Better intestinal miRNA protection was provided by DHCA than MHCA.Intestinal miRNA were differentially expressed between hypothermia circulatory arrest at different temperature.

Objective To explore the relationship among job stressors,sleep quality and psychological health of nurses.Methods 708 female nurses in a 3-A-grade general hospitals of Guangxi were chosen and asked to fill out the Nurse Job Stressors Questionnaire-Revised (NJSQ-R),Pittsburgh Sleep Quality Index (PSQI) and Symptom Checklist 90 (SCL-90).Results ① The total mean score of NJSQ-R (1.50± 0.62) and the five job stressors,including the job environment and characters (1.60±0.65),personal relation ship(1.21±0.73),the attitude of patient and their relatives(1.63±0.74),professional skill(1.38±0.71) and social status and career development(1.97±0.72) were positively related with the total mean score of SCL-90 (1.64±0.69) (r=0.32-0.50,P＜0.01)and the total score of PSQI(8.11±3.52) (r=0.28-0.35,P＜0.01).There was a positive relationship between SCL-90 and PSQI(r=0.46,P＜0.01)).② SCL-90(β=0.387,P＜ 0.01)and the job stressor of the social status and career development(β=0.120,P＜0.05)were directly sig nificantly associated with PSQI.The job stressor of job environment and characters(β=0.235,P＜0.01) and professional skill(β=0.117,P＜0.05)were indirectly associated with PSQI mediated by SCL-90.③ PSQI was directly significantly associated with SCL-90(β=0.344,＜0.01).The job stressor of the social status and career development was indirectly significantly associated with SCL-90 mediated by PSQI(β=0.113,P＜0.05).And the job stressor of job environment and characters was directly (β=0.172,P＜0.01)and indirectly (β=0.184,P＜0.01) associated with PSQI mediated by SCL-90.Conclusion The higher the job stress,the more the mental health problem,and the poor the sleep quality among nurses.Job stressors have direct or in direct influence on psychological health and sleep quality,depending on the nature of job stressors.In addition,the result suggests that a bidirectional relationship exists between sleep quality and psychological health.

Objective To analyze the influencing factors on AIDS-related deaths among HIV/AIDS patients in Guangzhou,Guangdong province.Methods A retrospective cohort was formed,based on available data of HIV/AIDS patients between 1991 and 2013 in Guangzhou,that were gathered from the Chinese AIDS Prevention and Control Information System.Cox proportional hazard model was used to identify the influencing factors for AIDS-related deaths.Results Data showed that factors as:existence of full-bloom AIDS when HIV infection was diagnosed (HR =2.717,95％ CI:2.039-3.621),diagnose of AIDS was made in the hospitals (HR=1.516,95％ CI:1.159-1.981),never received no CD4 count testing (HR=4.866,95％CI:3.674-6.444),no drugs were provided to those who met the criteria for treatment (HR=12.213,95％CI:8.467-17.616),and patients at aged ≥40 years when HIV infection was diagnosed etc.,were related to the risk for AIDS deaths.The risk of AIDS-related death was also high in those who did not meet the treatment criteria or receiving no treatment,when compared to those who had received the antiviral treatment (HR=1.936,95％ CI:1.145-3.272).Conclusion Factors as:earlier diagnosis of HIV/AIDS cases,provision of CD4 count testing and antiviral treatment to more cases etc,could decrease the risk for AIDS-related deaths and improve the survival rate on HIV/AIDS cases.

Objective To observe the effect of hydrogen on ultraviolet B (UVB)-induced oxidative damage to skin fibroblasts.Methods Primary human skin fibroblasts from foreskin tissues were divided into five groups:normal control group receiving no treatment,hydrogen control group treated with hydrogen-rich saline,UVB group receiving irradiation only,post-treatment group irradiated with UVB followed by hydrogen-rich saline treatment,and pre-treatment group treated with hydrogen-rich saline followed by UVB irradiation.The dose of UVB was 30,60 and 90 mJ/cm2 in the cell proliferation assay and 90 mJ/cm2 in the other experiments.Methyl thiazolyl tetrazolium (MTT) assay was performed to evaluate the proliferative activity of fibroblasts,a chemiluminescence method to estimate the activity of superoxide dismutase (SOD) and catalase as well as to determine the level of malondialdehyde in the culture supernatant of fibroblasts,enzyme linked immunosorbent assay (ELISA) to determine the supernatant level of 8-isoprostane-prostaglandin F2α (8-iso-PGF2α),Western blot to detect the expression of heme oxygenase-1 (HO-1) in fibroblasts.One-factor analysis of variance was conducted to assess differences in these parameters among these groups.Results UVB irradiation decreased the proliferative activity (absorbence value at 490 nm) of fibroblasts in a dose-dependent manner.Both the pre-treatment group and post-treatment group showed a statistical increase in proliferative activity of cells compared with the corresponding UVB control groups (all P ＜ 0.05).The activity of SOD and catalase as well as the protein expression of HO-1 were significantly higher (all P ＜ 0.05),whereas the supernatant levels of malondialdehyde and 8-iso-PGF2α were statistically lower (both P ＜ 0.05) in the pre-treatment group and post-treatment group than in the UVB control group.Conclusion Hydrogen may mitigate UVB-induced oxidative damage to skin fibroblasts.