Infectious diseases continue to pose a threat to global public health. Successive global shocks caused by emerging and re-emerging pathogens have continuously challenged existing surveillance systems, highlighting the urgent need to build efficient and precise pathogen surveillance networks. Pathogen genomic databases have been developed rapidly in recent two decades, significantly improving the molecular identification, evolutionary analysis, and transmission tracking of pathogens, and changing disease surveillance strategies and patterns. This paper summarizes the developmental history and current state of pathogen genomic databases, and discusses their applications in public health, including pathogen variation surveillance, emerging or suspected pathogen identification, and epidemiological tracing. Furthermore, this paper systematically analyzes the limitations and key challenges faced by current global health prevention and control system, and suggests the focus of the development of online pathogen databases to address existing shortcomings, ultimately improve global infectious disease surveillance and early warning

Objective To evaluate the application value of aspiration catheter and debulking technology in the treatment of patients with intermediate-and high-risk pulmonary thromboembolism(PTE).Methods The clinical data of 28 patients with intermediate-and high-risk PTE were analyzed retrospectively.All subjects received thrombectomy using a 7F JR Guiding catheter.The success rate of surgery and the incidence of complications were counted,and the preoperative and postoperative values in heart rate(HR),systolic blood pressure(SBP),oxygen saturation(SO2),partial pressure of oxygen(PO2),Miller index,and mean pulmonary arterial pressure(MPAP)were compared.Results All patients were successfully treated,of which 26 cases obtained symptomatic relief after surgery.There were 2 cases of death in high-risk patients,of whom one died of myocardial infarction,and the other died of cerebral herniation after the procedure.One case reported the formation of pulmonary artery small dissection which disappeared within 2 months during conservative observation.The postoperative HR,Miller index,and MPAP decreased and SBP,SO2,and P()2 increased significantly than those of preoperative(P＜0.05).The follow-up period for this group ranged from 7 to 29 months,with a median follow-up of 14.6(7,19)months.During the follow-up period,no recurrences were observed.Conclusion The aspiration catheter and debulking technology demonstrate efficacy in treating intermediate-and high-risk PTE,and is associated with favourable success rates and low complication rates.The findings suggest its potential for wider clinical use.

Infectious diseases continue to pose a threat to global public health. Successive global shocks caused by emerging and re-emerging pathogens have continuously challenged existing surveillance systems, highlighting the urgent need to build efficient and precise pathogen surveillance networks. Pathogen genomic databases have been developed rapidly in recent two decades, significantly improving the molecular identification, evolutionary analysis, and transmission tracking of pathogens, and changing disease surveillance strategies and patterns. This paper summarizes the developmental history and current state of pathogen genomic databases, and discusses their applications in public health, including pathogen variation surveillance, emerging or suspected pathogen identification, and epidemiological tracing. Furthermore, this paper systematically analyzes the limitations and key challenges faced by current global health prevention and control system, and suggests the focus of the development of online pathogen databases to address existing shortcomings, ultimately improve global infectious disease surveillance and early warning

Objective To evaluate the application value of aspiration catheter and debulking technology in the treatment of patients with intermediate-and high-risk pulmonary thromboembolism(PTE).Methods The clinical data of 28 patients with intermediate-and high-risk PTE were analyzed retrospectively.All subjects received thrombectomy using a 7F JR Guiding catheter.The success rate of surgery and the incidence of complications were counted,and the preoperative and postoperative values in heart rate(HR),systolic blood pressure(SBP),oxygen saturation(SO2),partial pressure of oxygen(PO2),Miller index,and mean pulmonary arterial pressure(MPAP)were compared.Results All patients were successfully treated,of which 26 cases obtained symptomatic relief after surgery.There were 2 cases of death in high-risk patients,of whom one died of myocardial infarction,and the other died of cerebral herniation after the procedure.One case reported the formation of pulmonary artery small dissection which disappeared within 2 months during conservative observation.The postoperative HR,Miller index,and MPAP decreased and SBP,SO2,and P()2 increased significantly than those of preoperative(P＜0.05).The follow-up period for this group ranged from 7 to 29 months,with a median follow-up of 14.6(7,19)months.During the follow-up period,no recurrences were observed.Conclusion The aspiration catheter and debulking technology demonstrate efficacy in treating intermediate-and high-risk PTE,and is associated with favourable success rates and low complication rates.The findings suggest its potential for wider clinical use.

Objective To evaluate the efficacy of endovascular treatment for ruptured descending thoracic aortic aneurysm(rDTAA),and to summarize the treatment experience.Methods The clinical data of 8 patients with rDTAA,who were admitted to the Department of Vascular Interventional Surgery,Zhangjiajie Municipal People's Hospital of China to receive treatment between January 2016 and June 2023,were retrospectively analyzed.The patients included 4 males and 4 females,with a median age of 70.5 years(61-78 years).Preoperative computed tomography angiography(CTA)was performed in all the 8 patients,and the diagnosis of rDTAA complicated by hematoma in the thoracic cavity and/or mediastinum was confirmed.Emergency thoracic endovascular aortic repair(TEVAR)was carried out in all the 8 patients.Results Complete isolation of the thoracic descending aortic aneurysm was achieved in 6 patients,and 2 of them received reconstruction of left subclavian artery by using chimney stent technique.The remaining two patients had a small amount of type Ⅰa endoleak,which disappeared after implantation of a cuff stent at the proximal site.During hospitalization,one patient died of septic shock caused by thoracic aortic-esophageal fistula,and 3 patients developed respiratory failure after operation,which was recovered after thoracic drainage,anti-infection medication and ventilator-assisted breathing therapy.Two patients developed postoperative ischemic stroke,one of them presented as grade Ⅲ motor muscle weakness on the affected side accompanied by speech impairment,and the another patient presented as grade Ⅳ motor muscle weakness on the affected side accompanied by speech impairment.During the follow-up period,one patient died of sudden chest pain 7 months after surgery,and another patient who had not received chimney stent implantation developed type Ⅰa endoleak 18 months after operation,which disappeared after implantation of a cuff stent at the proximal site.The remaining 5 patients showed good clinical condition during the follow-up period.Conclusion For the treatment of rDTAA,TEVAR is clinically safe and effective.

Objective To use the ultra-performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS)to authenticate the chemical composition of Morinda citrifolia,and further experiments verify that Morinda citrifolia regulate miR-223-3p/NLRP3 signaling pathway to inhibit the inflammatory response in rats with polycystic ovary syndrome(PCOS).Methods Use UPLC-MS/MS analyze the chemical composition of Morinda citrifolia.SD female rats were randomly divided into three groups:normal control group(n=5),PCOS model group(n=5)and Morinda citrifolia gavage group(n=5).HE staining observe the morphology of ovarian histology,ELISA method detect the expression levels of testosterone(T),luteinizing hormone(LH),follicle stimulating hormone(FSH),interleukin(IL)-1βand IL-18,RT-qPCR detect the mRNA expression of miR-223-3p and NLRP3,and Western blot detect the protein expression of NLRP3.Results UPLC-MS/MS identify 641 chemical composition of Morinda citrifolia,including luteolin,Apigenin,emodin and other composition.Compared with the normal control group,the number of cell layers of ovarian granule in the PCOS model group is reduced,and follicular cystic dilation,atresia follicles increased,T and LH levels increased(P<0.05),FSH levels decreased(P<0.05),IL-18 and IL-1β levels increased(P<0.05),and ovarian tissue miR-223-3p mRNA expression decreased(P<0.01),NLRP3 mRNA and protein expression increased(P<0.01)in PCOS model group.Compared with the PCOS model group,the proportion of follicles at all levels is normal,the number of granule cell layers increased,T and LH levels decreased(P<0.05),FSH levels increased(P<0.05),IL-18 and IL-1β levels decreased(P<0.05),miR-223-3p mRNA expression in ovarian tissue increased((P<0.05),NLRP3 mRNA and protein expression decreased(P<0.05)in Morinda citrifolia gavage group.Conclusion Morinda citrifolia can improve the ovary pathological state of PCOS rats,change the abnormal sex hormones and reduce the levels of inflammatory factors IL-18 and IL-1β.The mechanism maybe regulate the miR-223-3p/NLRP3 signaling pathway to inhibit the inflammatory response in PCOS rats.

Objective:To investigate the correlation between coronary artery calcification(CAC)scores based on computed tomography(CT)on chest and perioperative complications of emergency percutaneous coronary intervention(PCI)of patients with acute ST-segment elevation myocardial infarction(STEMI).Methods:A total of 263 STEMI patients who admitted to the Chest Pain Center of the Department of Cardiovascular Medicine of Baoding NO.1 Central Hospital from March 2020 to July 2021 were selected.All of them underwent CT examination on chest,and were assessed by CAC scores.They were divided into no calcification and mild group(0～2 scores,129 cases),moderate calcification group(3～5 scores,88 cases)and severe calcification group(6-9 scores,46 cases)according to CAC scores.Perioperative complications and major cardiovascular events(MACE)of patients with different degrees of calcification in the follow-up period were analyzed.The differences among different groups were compared.The correlation between CAC scores and perioperative complications of emergency PCI was further analyzed.Results:Compared with patients of no calcification and mild group,the ages of patients of moderate and severe calcification groups were older(x2=45.815,P＜0.05),and the incidences of hypertension,cerebral infarction,diabetes,multi-vessel disease and MACE of moderate and severe calcification groups were significantly higher(x2=6.762,11.071,6.064,25.036,21.694,P＜0.05).There were significant differences in eGFR and NT-ProBNP levels among the 3 groups(F=8.592,Z=20.890,P＜0.05).Compared with the severe calcification group,the incidence of coronary thrombosis was higher in the no calcification and mild group(x2=7.748,P＜0.05).According to logistic regression analysis,the patients with coronary thrombosis,moderate and severe calcification were more likely to have minor complications(OR=4.847,5.280,11.135,P＜0.001).Patients with older age,hypertension or severe calcification of coronary artery were more likely to occur serious complications,and the MACE incidence was higher within 1 year after surgery(OR=1.151,7.982,10.555,21.729,P＜0.05).Conclusion:Patients with moderate and severe calcification lesions who are assessed by CAC scores based on chest CT have a higher incidence of perioperative complications.CAC scores based on chest CT can be used to assess perioperative complications of emergency PCI and MACE within 1 year after surgery.

Objective: To explore the relationship between coronary tortuosity and coronary microvascular disease (CMVD). Methods: Patients with typical angina symptoms and without serious coronary artery stenosis by coronary angiography were enrolled from June 2014 to December 2016, and CMVD was diagnosed by single photon emission tomography (SPECT). According to the SPECT results, patients were divided to the CMVD group and non-CMVD group. The baseline clinical characteristics, results of coronary angiography were compared between the two groups. The logistic analysis was used to analyze the relationship between coronary tortuosity and CMVD. Result: A total of 117 cases were enrolled, with 69 cases in the CMVD group and 48 cases in the non-CMVD group. No differences were found in gender distribution, age, hypertension, lipid abnormality, hyperuricemia and uses of statins between the two groups (all P>0.05). Incidence of diabetes (78.26%(54/69) vs. 35.42% (17/48) , P<0.05), hs-CRP ((4.29±2.15)mmol/L vs. (2.63±1.20)mmol/L, P<0.001), LDL-C ((2.98±0.96)mmol/L vs. (2.52±0.83)mmol/L, P=0.008) and homocysteine ((13.7±5.61)mmol/L vs. (11.5±4.38)mmol/L, P=0.025) levels were higher in the CMVD group than in the non-CMVD group. The data derived from echocardiographic examination were similar between the two groups. The Corrected TIMI frame counts were higher in the CMVD group than in non-CMVD group (LAD: 31.56±4.92 vs. 27.31±3.75, LCX: 29.47±4.18 vs. 26.62±3.19, RCA: 29.09±5.05 vs. 26.24±3.28, all P<0.001). The incidences of coronary atherosclerosis (76.81% (53/69) vs. 27.08% (13/48) , P<0.001) and coronary tortuosity ( (60.87% (42/69) vs. 33.33% (16/48) , P=0.035) were also higher in the CMVD group than in non-CMVD group. Logistic analysis found that coronary tortuosity (OR=6.111, 95%CI 2.707-13.794, P<0.001), diabetes (OR=6.565, 95%CI 2.883-14.948, P<0.001) and coronary atherosclerosis (OR=8.918, 95%CI 3.822-20.808, P<0.001) were independent risk factors of CMVD. Conclusion Coronary tortuosity, diabetes and coronary atherosclerosis are related to CMVD in this patient cohort.

In recent years, transesophageal echocardiography has a trend toward miniaturization, so it has great clinical significance and broad clinical application prospect in the management of Cardiac Surgery ICU patient. This paper presents the characteristics of miniaturized transesophageal echocardiography and its clinical application. And we also focused on the contrast between miniaturized transesophageal echocardiography and standard transesophageal echocardiography and transthoracic echocardiography.

Objective To investigate the effects of dedicator of cytokinesis 1 (Dock180) knockout on proliferation and apoptosis in rat derived H9C2 cardiomyocytes and their mechanisms.Methods A single guide RNA (sgRNA) targeting rat Dock180 gene was designed and constructed using CRISPR/Cas9 system.A plasmid contained above sgRNA was packaged into lentivirus and selected to knockout Dock180 in the cardiomyocytes.A single clone of cardiomyocyte with Dock180 knockout was established.Cardiomyocytes were divided into negative lentivirus group (Cas9, A group), Dock180 knockout group (B group), Cas9 lentivirus hypoxia group (C group), Dock180 knockout hypoxia group (D group).The expression of Dock180 mRNA was examined by RT-PCR, and relevant proteins were detected by Western blot.The cell proliferation rate of the cardiomyocytes was determined by MTT, and the apoptotic rate was measured by flow cytometry.Results Dock180 mRNA and protein were absent in B andD groups.Compared with A and C groups, p-ERK1/2 and Bcl-2 protein expression and cell proliferation rate were lower in B and D groups respectively (P<0.01), while Bax protein expression and cell apoptosis rate were higher in B and D groups respectively (P<0.05, P<0.01);Compared with A group, Dock180 mRNA and protein, p-ERK1/2 and Bcl-2 proteins and cell proliferation rate were reduced, while Bax protein and cell apoptosis rate were increased in C group(P<0.05,P<0.01).Compared with B group, p-ERK1/2 and Bcl-2 proteins and cell proliferation rate were decreased, while Bax protein and cell apoptosis rate were increased in D group(P<0.05,P<0.01).Conclusions Dock180 knockout with CRISPR/Cas9 can inhibit proliferation and promote apoptosis via p-ERK1/2, Bcl-2 and Bax in H9C2 cardiomyocytes.