1.Effect of'Wenyang Tongmai'Moxibustion on the Inflammatory Response of ApoE-/-Atherosclerotic Mice Based on the SIRT1/FOXO3a Signaling Pathway
Jiao-Jiao XIONG ; Xian-Ming WU ; Chao-Bo YAN ; Ning ZHANG ; Zhou ZHU ; Li PAN ; Xiao-Fang YANG
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(9):2410-2417
Objective To explore the mechanism of'Wenyang Tongmai'(warming yang to unblock meridians)moxibustion in preventing and treating atherosclerosis.Methods Ten C57BL/6J mice fed with normal diet were set as blank group.Thirty ApoE-/-mice were fed with high-fat diet to establish atherosclerosis model,and were randomly divided into model group,Simvastatin group and moxibustion group,with 10 mice in each group.The intervention began on the first day of modeling.The mice in the moxibustion group were given moxibustion at Danzhong(RN17),Shenque(RN8),Neiguan(PC6),Xuehai(SP10)points,and the Simvastatin group was given Simvastatin distilled water suspension by gavage for 12 weeks.After administration,the pathological structure of thoracic aorta in mice was observed by hematoxylin-eosin(HE)staining method.The ultrastructure of thoracic aortic endothelial cells in mice was observed by transmission electron microscopy.The levels of serum tumor necrosis factor α(TNF-α),intercellular adhesion molecule 1(ICAM-1)and vascular cell adhesion molecule 1(VCAM-1)in mice were detected by enzyme-linked immunosorbent assay(ELISA).The mRNA expression levels of silent information regulator 1(SIRT1)and forkhead box O3a(FOXO3a)in thoracic aorta were detected by real-time quantitative polymerase chain reaction(qRT-PCR).The protein expression levels of SIRT1 and FOXO3a in thoracic aorta were detected by Western Blot.Results Compared with the blank group,the pathological changes of thoracic aorta and vascular endothelial cells in the model group were obvious,the levels of serum inflammatory factor TNF-α,ICAM-1 and VCAM-1 were increased(P<0.05 or P<0.01),the mRNA and protein expressions of SIRT1 in thoracic aorta were decreased(P<0.01),and the mRNA and protein expressions of FOXO3a had no significant difference(P>0.05).Compared with the model group,the thoracic aorta and vascular endothelial cell structure of the mice in the Simvastatin group and the moxibustion group were obviously improved,the levels of serum TNF-α,ICAM-1 and VCAM-1 were decreased(P<0.05),the mRNA and protein expressions of SIRT1 in the thoracic aorta were increased(P<0.05 or P<0.01),and the mRNA and protein expressions of FOXO3a had no significant difference(P>0.05).There was no significant difference in the above indexes between the Simvastatin group and the moxibustion group(P>0.05).Conclusion'Wenyang Tongmai'moxibustion can prevent and treat atherosclerotic in rats via regulating and controlling SIRT1/FOXO3a signaling pathway to reduce inflammatory response.
2.Based on the concept and technique of full reconstruction of the hallux tissue flap treatment for thumb and fingertip defect reconstruction
Jie FANG ; Hui ZHU ; Guiqian LIU ; Shuo XU ; Qiang QI ; Wei ZHANG ; Weiya QI ; Dawei ZHENG ; Chao CHEN
Chinese Journal of Plastic Surgery 2024;40(1):69-75
Objective:To investigate the clinical efficacy of reconstruction with the hallux tissue flap for the fingertip defects of thumb and fingers based on the concept and technique of full reconstruction.Methods:From September 2022 to February 2023, the patients with thumb and fingertip defects who were reconstructed using the concept and technology of full reconstruction in Xuzhou Renci Hospital were respective analysised. Based on the degree of defect in the nail bed, bone, and soft tissue of the hand, a hallux osteo-onychocutaneous flap or hallux nail flap was designed and harvested from the same side of the toe, and free transplantation was performed to reconstruct the damaged fingertip. The wounds in the donor site that could not be sutured primarily were treated with dressing change. The surgical complications, the appearance of the reconstructed finger and donor site, Semmes-Weinstein monofilament (SWM) examination, 2-point discrimination (2PD) measurement, and patient satisfaction were regularly recorded. According to the functional evaluation criteria for thumb and finger reconstruction issued by the Hand Surgery of the Chinese Medical Association, the function of the reconstructed fingers was evaluated as excellent (13-15 points), good (9-12 points), fair (5-8 points), and poor (≤4 points). The patients were investigated whether they were satisfied with the outcomes.Results:A total of 8 patients (9 fingers) including 5 males and 3 females were enrolled. The average age was 32.4 years (range, 22-46 years). There were 1 thumb, 2 index fingers, 5 middle fingers, and 1 ring finger. 7 cases (8 fingers) were repaired with the hallux osteo-onychocutaneous flap, and 1 case (1 finger) was repaired with the hallux nail flap. All the reconstructed fingers survived uneventfully, and the recipient site healed primarily, and the donor site healed after dressing change, without infection and other complications. All the 8 patients (9 fingers) were followed up for 3-7 months. The nail plate of the donor site naturally grew and recovered nearly normal. Depression formation was observed at part of the deck junction of the recipient site, and scars were left in the pulp and fibular side of the hallux. At the final follow-up, the reconstructed fingers recovered protective sensation and tactile sense, and the 2PD of the reconstructed fingers was 9 mm and 10 mm in two cases. The SWM score was 3.60-4.31, mean 3.96. The results were the monofilament specifications and indicating the protective sensation was diminished. Functional evaluation of reconstructed fingers: 9 fingers in 8 cases scored 13-14 points, all reaching an excellent level. All patients were satisfied with the surgical results.Conclusion:Based on the concept and technology of full reconstruction, the fingertip defects of the thumb and finger can recover close to normal with the hallux tissue flap in the short-term, while ensuring the overall shape and function of the hallux donor area, achieving a balance between the donor and recipient areas, and achieving satisfactory clinical results.
3.Expert consensus on surgical treatment of oropharyngeal cancer
China Anti-Cancer Association Head and Neck Oncology Committee ; China Anti-Cancer Association Holistic Integrative Oral Cancer on Preventing and Screen-ing Committee ; Min RUAN ; Nannan HAN ; Changming AN ; Chao CHEN ; Chuanjun CHEN ; Minjun DONG ; Wei HAN ; Jinsong HOU ; Jun HOU ; Zhiquan HUANG ; Chao LI ; Siyi LI ; Bing LIU ; Fayu LIU ; Xiaozhi LV ; Zheng-Hua LV ; Guoxin REN ; Xiaofeng SHAN ; Zhengjun SHANG ; Shuyang SUN ; Tong JI ; Chuanzheng SUN ; Guowen SUN ; Hao TIAN ; Yuanyin WANG ; Yueping WANG ; Shuxin WEN ; Wei WU ; Jinhai YE ; Di YU ; Chunye ZHANG ; Kai ZHANG ; Ming ZHANG ; Sheng ZHANG ; Jiawei ZHENG ; Xuan ZHOU ; Yu ZHOU ; Guopei ZHU ; Ling ZHU ; Susheng MIAO ; Yue HE ; Jugao FANG ; Chenping ZHANG ; Zhiyuan ZHANG
Journal of Prevention and Treatment for Stomatological Diseases 2024;32(11):821-833
With the increasing proportion of human papilloma virus(HPV)infection in the pathogenic factors of oro-pharyngeal cancer,a series of changes have occurred in the surgical treatment.While the treatment mode has been im-proved,there are still many problems,including the inconsistency between diagnosis and treatment modes,the lack of popularization of reconstruction technology,the imperfect post-treatment rehabilitation system,and the lack of effective preventive measures.Especially in terms of treatment mode for early oropharyngeal cancer,there is no unified conclu-sion whether it is surgery alone or radiotherapy alone,and whether robotic minimally invasive surgery has better func-tional protection than radiotherapy.For advanced oropharyngeal cancer,there is greater controversy over the treatment mode.It is still unclear whether to adopt a non-surgical treatment mode of synchronous chemoradiotherapy or induction chemotherapy combined with synchronous chemoradiotherapy,or a treatment mode of surgery combined with postopera-tive chemoradiotherapy.In order to standardize the surgical treatment of oropharyngeal cancer in China and clarify the indications for surgical treatment of oropharyngeal cancer,this expert consensus,based on the characteristics and treat-ment status of oropharyngeal cancer in China and combined with the international latest theories and practices,forms consensus opinions in multiple aspects of preoperative evaluation,surgical indication determination,primary tumor re-section,neck lymph node dissection,postoperative defect repair,postoperative complication management prognosis and follow-up of oropharyngeal cancer patients.The key points include:① Before the treatment of oropharyngeal cancer,the expression of P16 protein should be detected to clarify HPV status;② Perform enhanced magnetic resonance imaging of the maxillofacial region before surgery to evaluate the invasion of oropharyngeal cancer and guide precise surgical resec-tion of oropharyngeal cancer.Evaluating mouth opening and airway status is crucial for surgical approach decisions and postoperative risk prediction;③ For oropharyngeal cancer patients who have to undergo major surgery and cannot eat for one to two months,it is recommended to undergo percutaneous endoscopic gastrostomy before surgery to effectively improve their nutritional intake during treatment;④ Early-stage oropharyngeal cancer patients may opt for either sur-gery alone or radiation therapy alone.For intermediate and advanced stages,HPV-related oropharyngeal cancer general-ly prioritizes radiation therapy,with concurrent chemotherapy considered based on tumor staging.Surgical treatment is recommended as the first choice for HPV unrelated oropharyngeal squamous cell carcinoma(including primary and re-current)and recurrent HPV related oropharyngeal squamous cell carcinoma after radiotherapy and chemotherapy;⑤ For primary exogenous T1-2 oropharyngeal cancer,direct surgery through the oral approach or da Vinci robotic sur-gery is preferred.For T3-4 patients with advanced oropharyngeal cancer,it is recommended to use temporary mandibu-lectomy approach and lateral pharyngotomy approach for surgery as appropriate;⑥ For cT1-2N0 oropharyngeal cancer patients with tumor invasion depth>3 mm and cT3-4N0 HPV unrelated oropharyngeal cancer patients,selective neck dissection of levels ⅠB to Ⅳ is recommended.For cN+HPV unrelated oropharyngeal cancer patients,therapeutic neck dissection in regions Ⅰ-Ⅴ is advised;⑦ If PET-CT scan at 12 or more weeks after completion of radiation shows intense FDG uptake in any node,or imaging suggests continuous enlargement of lymph nodes,the patient should undergo neck dissection;⑧ For patients with suspected extracapsular invasion preoperatively,lymph node dissection should include removal of surrounding muscle and adipose connective tissue;⑨ The reconstruction of oropharyngeal cancer defects should follow the principle of reconstruction steps,with priority given to adjacent flaps,followed by distal pedicled flaps,and finally free flaps.The anterolateral thigh flap with abundant tissue can be used as the preferred flap for large-scale postoperative defects.
4.An Enhancer LncRNA Regulates NFE2 Expression and Proliferation in Human Leukemic K562 Cells
Yan-Fei LU ; Song-Ya QU ; Jing-Jing ZHU ; Chao LIU ; Jian WANG ; Bing-She HAN ; Jun-Fang ZHANG
Progress in Biochemistry and Biophysics 2024;51(1):190-201
ObjectiveTranscription factor NFE2 was observed abnormal expression in myeloproliferative neoplasm (MPN) patients. However, how NFE2 is transcriptionally regulated remains ambiguous. This study aims to explore the elements and molecular mechanisms involved in the transcriptional regulation of NFE2. MethodsActive enhancers were predicted by public NGS data and conformed experimentally via dual luciferase reporter assay. After that, PRO-seq and GRO-seq data was used to detect enhancer RNAs transcribed from these enhancers. RACE was utilized to clone the full length enhancer RNA (eRNA) transcripts, and RT-qPCR was used to measure their expression in different leukemia cell lines as well as the transcript levels during induced differentiation. Finally, to investigate the molecular function of the eRNA, overexpression and knockdown of the eRNA via lentivirus system was performed in K562 cells. ResultsWe identified three enhancers regulating NFE2 transcription, which located at -3.6k, -6.2k and +6.3k from NFE2 transcription start site (TSS) respectively. At the -3.6k enhancer, we cloned an eRNA transcript and characterized that as a lncRNA which was expressed and located in the nucleus in three types of leukemia cell lines. When this lncRNA was overexpressed, expression of NFE2 was upregulated and decreases of K562 cell proliferation and migration ability were observed. While knocking down of this lncRNA, the level of NFE2 decreases correspondingly and the proliferation ability of K562 cells increases accordingly. ConclusionWe identified an enhancer lncRNA that regulates NFE2 transcription positively and suppresses K562 cell proliferation.
5.Clinical trial of Morinda officinalis oligosaccharides in the continuation treatment of adults with mild and moderate depression
Shu-Zhe ZHOU ; Zu-Cheng HAN ; Xiu-Zhen WANG ; Yan-Qing CHEN ; Ya-Ling HU ; Xue-Qin YU ; Bin-Hong WANG ; Guo-Zhen FAN ; Hong SANG ; Ying HAI ; Zhi-Jie JIA ; Zhan-Min WANG ; Yan WEI ; Jian-Guo ZHU ; Xue-Qin SONG ; Zhi-Dong LIU ; Li KUANG ; Hong-Ming WANG ; Feng TIAN ; Yu-Xin LI ; Ling ZHANG ; Hai LIN ; Bin WU ; Chao-Ying WANG ; Chang LIU ; Jia-Fan SUN ; Shao-Xiao YAN ; Jun LIU ; Shou-Fu XIE ; Mao-Sheng FANG ; Wei-Feng MI ; Hong-Yan ZHANG
The Chinese Journal of Clinical Pharmacology 2024;40(6):815-819
Objective To observe the efficacy and safety of Morinda officinalis oligosaccharides in the continuation treatment of mild and moderate depression.Methods An open,single-arm,multi-center design was adopted in our study.Adult patients with mild and moderate depression who had received acute treatment of Morinda officinalis oligosaccharides were enrolled and continue to receive Morinda officinalis oligosaccharides capsules for 24 weeks,the dose remained unchanged during continuation treatment.The remission rate,recurrence rate,recurrence time,and the change from baseline to endpoint of Hamilton Depression Scale(HAMD),Hamilton Anxiety Scale(HAMA),Clinical Global Impression-Severity(CGI-S)and Arizona Sexual Experience Scale(ASEX)were evaluated.The incidence of treatment-related adverse events was reported.Results The scores of HAMD-17 at baseline and after treatment were 6.60±1.87 and 5.85±4.18,scores of HAMA were 6.36±3.02 and 4.93±3.09,scores of CGI-S were 1.49±0.56 and 1.29±0.81,scores of ASEX were 15.92±4.72 and 15.57±5.26,with significant difference(P<0.05).After continuation treatment,the remission rate was 54.59%(202 cases/370 cases),and the recurrence rate was 6.49%(24 cases/370 cases),the recurrence time was(64.67±42.47)days.The incidence of treatment-related adverse events was 15.35%(64 cases/417 cases).Conclusion Morinda officinalis oligosaccharides capsules can be effectively used for the continuation treatment of mild and moderate depression,and are well tolerated and safe.
6.Based on the concept and technique of full reconstruction of the hallux tissue flap treatment for thumb and fingertip defect reconstruction
Jie FANG ; Hui ZHU ; Guiqian LIU ; Shuo XU ; Qiang QI ; Wei ZHANG ; Weiya QI ; Dawei ZHENG ; Chao CHEN
Chinese Journal of Plastic Surgery 2024;40(1):69-75
Objective:To investigate the clinical efficacy of reconstruction with the hallux tissue flap for the fingertip defects of thumb and fingers based on the concept and technique of full reconstruction.Methods:From September 2022 to February 2023, the patients with thumb and fingertip defects who were reconstructed using the concept and technology of full reconstruction in Xuzhou Renci Hospital were respective analysised. Based on the degree of defect in the nail bed, bone, and soft tissue of the hand, a hallux osteo-onychocutaneous flap or hallux nail flap was designed and harvested from the same side of the toe, and free transplantation was performed to reconstruct the damaged fingertip. The wounds in the donor site that could not be sutured primarily were treated with dressing change. The surgical complications, the appearance of the reconstructed finger and donor site, Semmes-Weinstein monofilament (SWM) examination, 2-point discrimination (2PD) measurement, and patient satisfaction were regularly recorded. According to the functional evaluation criteria for thumb and finger reconstruction issued by the Hand Surgery of the Chinese Medical Association, the function of the reconstructed fingers was evaluated as excellent (13-15 points), good (9-12 points), fair (5-8 points), and poor (≤4 points). The patients were investigated whether they were satisfied with the outcomes.Results:A total of 8 patients (9 fingers) including 5 males and 3 females were enrolled. The average age was 32.4 years (range, 22-46 years). There were 1 thumb, 2 index fingers, 5 middle fingers, and 1 ring finger. 7 cases (8 fingers) were repaired with the hallux osteo-onychocutaneous flap, and 1 case (1 finger) was repaired with the hallux nail flap. All the reconstructed fingers survived uneventfully, and the recipient site healed primarily, and the donor site healed after dressing change, without infection and other complications. All the 8 patients (9 fingers) were followed up for 3-7 months. The nail plate of the donor site naturally grew and recovered nearly normal. Depression formation was observed at part of the deck junction of the recipient site, and scars were left in the pulp and fibular side of the hallux. At the final follow-up, the reconstructed fingers recovered protective sensation and tactile sense, and the 2PD of the reconstructed fingers was 9 mm and 10 mm in two cases. The SWM score was 3.60-4.31, mean 3.96. The results were the monofilament specifications and indicating the protective sensation was diminished. Functional evaluation of reconstructed fingers: 9 fingers in 8 cases scored 13-14 points, all reaching an excellent level. All patients were satisfied with the surgical results.Conclusion:Based on the concept and technology of full reconstruction, the fingertip defects of the thumb and finger can recover close to normal with the hallux tissue flap in the short-term, while ensuring the overall shape and function of the hallux donor area, achieving a balance between the donor and recipient areas, and achieving satisfactory clinical results.
7.Mechanism by which lycium barbarum polysaccharides inhibit keratinocyte apoptosis in burn wounds via autophagy
Yongzhao ZHU ; Chao FANG ; Fang ZHAO ; Qing ZHANG ; Dan ZHAO
Chinese Journal of Tissue Engineering Research 2024;28(23):3686-3691
BACKGROUND:Lycium barbarum polysaccharide has many biological activities and has been found to have potential effects on promoting wound healing. OBJECTIVE:To investigate the mechanism of lycium barbarum polysaccharide in tumor necrosis factor-α-mediated keratinocyte apoptosis and its effect on the healing of burn wounds. METHODS:(1)In vitro experiment:Keratinocytes were divided into four groups:cells were cultured in the α-MEM medium(complete medium)containing 15%fetal bovine serum and 1%glutamine in normal group,cultured in the complete medium containing lycium barbarum polysaccharide in positive control group,cultured in the complete medium containing tumor necrosis factor-α in model group,and cultured in the complete medium containing lycium barbarum polysaccharide and tumor necrosis factor-α in experimental group.After 24 hours of culture,cell proliferation was detected using cell counting kit-8 assay;Cleaved caspase-8,TNF R1,FADD,and LC3 were detected using western blot.Then an autophagy inhibitor group(the complete medium containing 3-methyladenine)and an autophagy inhibitor+lycium barbarum polysaccharide group(the complete medium containing lycium barbarum polysaccharide,tumor necrosis factor-α,and 3-methyladenine)were set up.After 24 hours of culture,keratinocyte apoptosis was detected by flow cytometry.(2)In vivo experiment:Six Sprague-Dawley rats were randomly divided into a control group and an experimental group,with three rats in each group.Four deep Ⅱ degree burn wounds with a diameter of 2 cm were made on the back of each rat.At 24 hours after modeling,mice in the control and experimental groups were coated with normal saline and lycium barbarum polysaccharide solution,respectively,once a day.Wound healing was observed regularly after treatment.Samples were taken 28 days after treatment and the pathologic pattern of the wound was observed. RESULTS AND CONCLUSION:(1)In vitro experiment:Addition of lycium barbarum polysaccharide alone did not affect cell proliferation and apoptosis and the expression of apoptotic and autophagic proteins in keratinocytes.After the addition of tumor necrosis factor α,the proliferation of keratinocytes was inhibited,the apoptotic rate increased,and the expression of apoptotic and autophagic proteins was elevated,while lycium barbarum polysaccharide could antagonize the above effects of tumor necrosis factor-α.Lycium barbarum polysaccharide combined with autophagy inhibitors further reduced the apoptotic rate of keratinocytes.(2)In vivo experiment:The wound healing rate of rats in the experimental group was higher than that of the control group at 12,16,20,24,and 28 days after treatment(P<0.05,P<0.01).Hematoxylin-eosin staining results at 28 days after treatment showed an intact and well-defined epidermis of the wound in the experimental group compared with the control group.To conclude,lycium barbarum polysaccharide protects the integrity of skin epidermal tissue and promotes wound healing by inhibiting autophagy and apoptosis of keratinocytes.
8.Transcatheter endocardial alginate-hydrogel implantation for the treatment of a patient with non-responsive heart failure on cardiac resynchronization therapy defibrillator:a case report
Cun-Jun ZHU ; Bo WANG ; Chao GAO ; Min SHEN ; Tao SU ; Ru-Tao WANG ; Fang-Jun MOU ; Xiao-Na CHEN ; Fei LI ; Ling TAO
Chinese Journal of Interventional Cardiology 2024;32(8):468-471
Heart failure(HF)is the end stage of almost all cardiovascular diseases,including coronary heart disease and structural heart disease.For end-stage HF,medications and cardiac assist devices have limited therapeutic effects,and heart transplantation is associated with donor shortage and immune rejection.Alginate hydrogel has the ability to mechanically support and induce cardiac tissue regeneration and repair.In March 2021,we conducted the world's first transcatheter endocardial alginate-hydrogel implantation in patients with end-stage heart failure,and explored the safety and feasibility of the treatment.Given that patients with heart failure who had undergone cardiac resynchronization therapy defibrillator(CRT-D)were excluded from previous studies,this paper is the first to report a case of transcatheter endocardial alginate-hydrogel implantation in a patient with heart failure who did not respond to CRT-D,with a significant reduction in the number of visits to the doctor and a significant improvement in the quality of life during the post-procedure follow-up,which may expand the indications for the use of this technology.
9.Extracorporeal membrane oxygenation support during transcatheter aortic valve replacement in patients with reduced left ventricular ejection fraction
Cun-Jun ZHU ; Chao GAO ; Bo WANG ; Tao SU ; Ru-Tao WANG ; Yuan HE ; Fang-Jun MOU ; Xiao-Na CHEN ; Fei LI ; Ling TAO
Chinese Journal of Interventional Cardiology 2024;32(11):642-647
Objective To evaluate the efficacy of extracorporeal membrane oxygenation(ECMO)in patients with reduced left ventricular ejection fraction(LVEF)undergoing transcatheter aortic valve implantation(TAVR).Methods This was a single-center,retrospective study enrolling a total of 30 patients with reduced LVEF undergoing TAVR from January 2020 to January 2024.Of these,12 patients underwent TAVR with ECMO.Baseline clinical characteristics,preprocedural echocardiographic and computed tomographic(CT)measurements,TAVR procedural details,and follow-up data at 60-day and 6-month were collected.Results Among the 30 patients,there were 20 males with an average age of(67.0±10.4)years,an average STS score of(8.2±1.8)points,and an average LVEF of(21.2±5.3)%.This study included 11 AR patients,all of whom were in the group without ECMO implantation,and the difference between the two groups was statistically significant(P=0.027).During the operation,there were 0 cases of circulatory collapse in the ECMO group,and 5 cases(5/18)of circulatory collapse in the non ECMO group.All 5 patients underwent emergency ECMO placement.There were statistically significant differences(P<0.05)in the comparison of two groups with circulatory collapse and salvage ECMO implantation.The technical success rate of 30 patients was 76.7%(23/30),and the instrument success rate was 60.0%(18/30).Among them,the technical success rate and instrument success rate of the ECMO group were higher than those of the non ECMO group,but the differences were not statistically significant(both P>0.05).During a 30 day follow-up,there were 0 all-cause deaths in the ECMO group and 9 all-cause deaths(9/18)in the non ECMO group.Among them,7 cases(7/18)died from cardiovascular causes.The differences in all-cause and cardiovascular cause deaths between the two groups were statistically significant(both P<0.05).During a 6-month follow-up,one patient with ECMO died due to extensive cerebral infarction.The all-cause mortality rate during the 6-month follow-up was 1/12(8.3%),while the all-cause mortality rate without ECMO was 9/18(5.0%).The difference between the two groups was statistically significant(P=0.024).The incidence of stroke with ECMO was 1/12(8.3%),while without ECMO it was 0.There was no statistically significant difference between the two groups(P=0.978).Conclusions In patients with reduced LVEF undergoing TAVR,periprocedural ECMO support does seem to improve patient outcome.
10.Surveillance of bacterial resistance in tertiary hospitals across China:results of CHINET Antimicrobial Resistance Surveillance Program in 2022
Yan GUO ; Fupin HU ; Demei ZHU ; Fu WANG ; Xiaofei JIANG ; Yingchun XU ; Xiaojiang ZHANG ; Fengbo ZHANG ; Ping JI ; Yi XIE ; Yuling XIAO ; Chuanqing WANG ; Pan FU ; Yuanhong XU ; Ying HUANG ; Ziyong SUN ; Zhongju CHEN ; Jingyong SUN ; Qing CHEN ; Yunzhuo CHU ; Sufei TIAN ; Zhidong HU ; Jin LI ; Yunsong YU ; Jie LIN ; Bin SHAN ; Yunmin XU ; Sufang GUO ; Yanyan WANG ; Lianhua WEI ; Keke LI ; Hong ZHANG ; Fen PAN ; Yunjian HU ; Xiaoman AI ; Chao ZHUO ; Danhong SU ; Dawen GUO ; Jinying ZHAO ; Hua YU ; Xiangning HUANG ; Wen'en LIU ; Yanming LI ; Yan JIN ; Chunhong SHAO ; Xuesong XU ; Wei LI ; Shanmei WANG ; Yafei CHU ; Lixia ZHANG ; Juan MA ; Shuping ZHOU ; Yan ZHOU ; Lei ZHU ; Jinhua MENG ; Fang DONG ; Zhiyong LÜ ; Fangfang HU ; Han SHEN ; Wanqing ZHOU ; Wei JIA ; Gang LI ; Jinsong WU ; Yuemei LU ; Jihong LI ; Qian SUN ; Jinju DUAN ; Jianbang KANG ; Xiaobo MA ; Yanqing ZHENG ; Ruyi GUO ; Yan ZHU ; Yunsheng CHEN ; Qing MENG ; Shifu WANG ; Xuefei HU ; Wenhui HUANG ; Juan LI ; Quangui SHI ; Juan YANG ; Abulimiti REZIWAGULI ; Lili HUANG ; Xuejun SHAO ; Xiaoyan REN ; Dong LI ; Qun ZHANG ; Xue CHEN ; Rihai LI ; Jieli XU ; Kaijie GAO ; Lu XU ; Lin LIN ; Zhuo ZHANG ; Jianlong LIU ; Min FU ; Yinghui GUO ; Wenchao ZHANG ; Zengguo WANG ; Kai JIA ; Yun XIA ; Shan SUN ; Huimin YANG ; Yan MIAO ; Mingming ZHOU ; Shihai ZHANG ; Hongjuan LIU ; Nan CHEN ; Chan LI ; Jilu SHEN ; Wanqi MEN ; Peng WANG ; Xiaowei ZHANG ; Yanyan LIU ; Yong AN
Chinese Journal of Infection and Chemotherapy 2024;24(3):277-286
Objective To monitor the susceptibility of clinical isolates to antimicrobial agents in tertiary hospitals in major regions of China in 2022.Methods Clinical isolates from 58 hospitals in China were tested for antimicrobial susceptibility using a unified protocol based on disc diffusion method or automated testing systems.Results were interpreted using the 2022 Clinical &Laboratory Standards Institute(CLSI)breakpoints.Results A total of 318 013 clinical isolates were collected from January 1,2022 to December 31,2022,of which 29.5%were gram-positive and 70.5%were gram-negative.The prevalence of methicillin-resistant strains in Staphylococcus aureus,Staphylococcus epidermidis and other coagulase-negative Staphylococcus species(excluding Staphylococcus pseudintermedius and Staphylococcus schleiferi)was 28.3%,76.7%and 77.9%,respectively.Overall,94.0%of MRSA strains were susceptible to trimethoprim-sulfamethoxazole and 90.8%of MRSE strains were susceptible to rifampicin.No vancomycin-resistant strains were found.Enterococcus faecalis showed significantly lower resistance rates to most antimicrobial agents tested than Enterococcus faecium.A few vancomycin-resistant strains were identified in both E.faecalis and E.faecium.The prevalence of penicillin-susceptible Streptococcus pneumoniae was 94.2%in the isolates from children and 95.7%in the isolates from adults.The resistance rate to carbapenems was lower than 13.1%in most Enterobacterales species except for Klebsiella,21.7%-23.1%of which were resistant to carbapenems.Most Enterobacterales isolates were highly susceptible to tigecycline,colistin and polymyxin B,with resistance rates ranging from 0.1%to 13.3%.The prevalence of meropenem-resistant strains decreased from 23.5%in 2019 to 18.0%in 2022 in Pseudomonas aeruginosa,and decreased from 79.0%in 2019 to 72.5%in 2022 in Acinetobacter baumannii.Conclusions The resistance of clinical isolates to the commonly used antimicrobial agents is still increasing in tertiary hospitals.However,the prevalence of important carbapenem-resistant organisms such as carbapenem-resistant K.pneumoniae,P.aeruginosa,and A.baumannii showed a downward trend in recent years.This finding suggests that the strategy of combining antimicrobial resistance surveillance with multidisciplinary concerted action works well in curbing the spread of resistant bacteria.


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