1.Targeted Regulation of Oocyte Quality by Traditional Chinese Medicine Compound Formula: A Review
Zhicheng JIA ; Yong LIU ; Guotao HU ; Ruoxi ZHAO ; Weisen FAN ; Ying GUO ; Ruihua ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(10):328-336
The oocyte, as the origin of life, provides half the chromosomes to the embryo and supplies the proteins, substrates, energy, and other support necessary for embryonic development. It is the decisive factor determining the embryo's developmental potential. Infertility caused by reproductive endocrine diseases targets the oocyte as the final target cell. Improving oocyte quality represents a key and difficult point in the field of modern reproductive medicine. The decline of oocyte quality is related to meiosis abnormalities, DNA damage, mitochondrial dysfunction, oxidative stress, and other mechanisms. For oocyte quality problems, there is no unified international guideline to recommend drugs. Because the drug intervention research on oocytes involves strict clinical ethical restrictions, the current relevant research only stays in the animal and in vitro experimental stage and has not yet been applied to the clinic. Traditional Chinese medicine compound formula has a multi-target and multi-pathway regulation mechanism and is widely used in clinics. More and more research began to pay attention to the potential mechanism of traditional Chinese medicine compound formulas in improving oocyte quality. Traditional Chinese medicine compound formula has the advantages of multi-target and multi-channel synergy as well as better safety, individualization, and conformity to clinical ethics in improving oocyte quality. This article systematically reviewed the research progress on traditional Chinese medicine compound formula interventions for oocyte quality, aiming to summarize existing findings and provide recommendations to improve oocyte quality and optimize the clinical diagnosis and treatment of female infertility within traditional Chinese medicine.
2.Targeted Regulation of Oocyte Quality by Traditional Chinese Medicine Compound Formula: A Review
Zhicheng JIA ; Yong LIU ; Guotao HU ; Ruoxi ZHAO ; Weisen FAN ; Ying GUO ; Ruihua ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(10):328-336
The oocyte, as the origin of life, provides half the chromosomes to the embryo and supplies the proteins, substrates, energy, and other support necessary for embryonic development. It is the decisive factor determining the embryo's developmental potential. Infertility caused by reproductive endocrine diseases targets the oocyte as the final target cell. Improving oocyte quality represents a key and difficult point in the field of modern reproductive medicine. The decline of oocyte quality is related to meiosis abnormalities, DNA damage, mitochondrial dysfunction, oxidative stress, and other mechanisms. For oocyte quality problems, there is no unified international guideline to recommend drugs. Because the drug intervention research on oocytes involves strict clinical ethical restrictions, the current relevant research only stays in the animal and in vitro experimental stage and has not yet been applied to the clinic. Traditional Chinese medicine compound formula has a multi-target and multi-pathway regulation mechanism and is widely used in clinics. More and more research began to pay attention to the potential mechanism of traditional Chinese medicine compound formulas in improving oocyte quality. Traditional Chinese medicine compound formula has the advantages of multi-target and multi-channel synergy as well as better safety, individualization, and conformity to clinical ethics in improving oocyte quality. This article systematically reviewed the research progress on traditional Chinese medicine compound formula interventions for oocyte quality, aiming to summarize existing findings and provide recommendations to improve oocyte quality and optimize the clinical diagnosis and treatment of female infertility within traditional Chinese medicine.
3.Observation of the Effect of Sodium Cantharinate Assisted Bevacizumab in the Treatment of Advanced Non Small Cell Lung Cancer Patients
Jia-sheng ZHAO ; Lei WANG ; Li LI ; Yong LIANG ; Hong-ying YIN
Progress in Modern Biomedicine 2025;25(11):1830-1837
Objective:To observe the effect of sodium cantharidate assisted bevacizumab in the treatment of advanced non-small cell lung cancer patients.Methods:A total of 120 patients with advanced lung adenocarcinoma from January 2021 to December 2023 were divided into two groups,namely the experimental group and the matched group,each consisting of 60 cases.All patients were treated with AP(cisplatin+pemetrexed)chemotherapy,and bevacizumab(7.5 mg/kg)was administered intravenously at the same time as chemotherapy in the matched group,while sodium bengalate(0.5 mg)was added intravenously in the experimental group on the basis of the matched group,and the patients in the two groups were compared with each other in terms of the clinical efficacy of the two groups in a cycle of 21 d,and the changes in the indicators of the immune function,symptoms and scores of adverse reactions were also compared before and after the 4 consecutive cycles of treatment.After 4 consecutive cycles of treatment,we compared the clinical efficacy,immune function indexes,symptoms,and the incidence of adverse reactions.Results:There was no difference in disease control rate(P>0.05),and the objective response rate was higher than the matched group(P<0.05);Pretherapy,tthe levels of natural killer(NK)cells,CD4+/CD8+,immunoglobulin(Ig)G and IgA were different between the test and matched group(P>0.05).Post-treatment,the levels of NK cells,CD4+/CD8+,IgG,and IgA in the experimental group increased,while there was no significant change in the matched group.The experimental group was higher than the matched group(P<0.05);Pretherapy,there was no difference in VAS and BFI scores between the experimental group and the matched group(P>0.05).Post-treatment,the scores of the Simplified Fatigue Scale(BFI)and Visual Analog Scale(VAS)in both groups decreased,and the experimental group was lower than the matched group(P<0.05);The incidence of grade Ⅰ-Ⅱ gastrointestinal reactions,liver and kidney dysfunction,bone marrow suppression,leukopenia,and grade Ⅲ-Ⅳ bone marrow suppression in the experimental group were all lower than those in the matched group(P<0.05).Conclusion:Sodium cantharidate assisted bevacizumab therapy has a significant effect on non-small cell lung cancer.Compared with single chemotherapy combined with bevacizumab,it can improve the objective remission rate of patients,improve their immune function level,alleviate pain and cancer-related fatigue symptoms,and assist in reducing the incidence of adverse reactions caused by bevacizumab and chemotherapy.
4.Nomogram for predicting the postoperative efficacy of cervical spondylotic myelopathy based on apparent diffusion coefficient and clinical features
Jia LI ; Xiaonan TIAN ; Yujin ZHANG ; Baogen ZHAO ; Yong WANG ; Li ZHANG
Journal of Practical Radiology 2025;41(4):564-568
Objective To investigate the value of the nomogram model based on the apparent diffusion coefficient(ADC)value of the cervical spinal cord in predicting neurological recovery after cervical spondylotic myelopathy(CSM).Methods One hundred CSM patients undergoing decompression surgery were prospectively enrolled.All patients underwent conventional cervical spine MRI and sagittal position non-shared incentive diffusion weighted imaging(ZOOM-DWI)examination before surgery.The improvement rate of neurological function was calculated according to the modified Japanese Orthopaedic Association(mJOA)score before and 6 months after surgery and divided into the good improvement group(60 patients)and the poor improvement group(40 patients)according to the improvement rate.Independent risk factors for postoperative outcomes were determined by univariate and multivariate logistic regression.Then the prediction model based on the clinical-imaging feature(model 1)and clinical-imaging feature-ADC value(model 2)were established,the receiver operating characteristic(ROC)curve was drawn,and the DeLong test was performed to compare the discrimination efficiency of the two models.A nomogram,calibration curve,and clinical decision curve were drawn for model 2.Results Age,body mass index(BMI),diabetes mellitus,T2 hyperintense,cross-sectional area,and ADC values at the disc level of different segments were independent risk factors affecting the outcome of CSM.The area under the curve(AUC)of the ROC curve constructed by model 2(AUC=0.933)was higher than that of model 1(AUC=0.864).The DeLong test showed that the difference between the two models was statistically significant(P<0.05).The nomogram,calibration curve,and decision curve analysis(DCA)of model 2 showed that it had good differentiation,accuracy,and clinical value.Conclusion The nomogram model based on ADC value can effectively predict the outcome of postoperative neurological recovery in CSM patients.
5.Distribution and resistance profiles of bacterial strains isolated from cerebrospinal fluid in hospitals across China:results from the CHINET Antimicrobial Resistance Surveillance Program,2015-2021
Juan MA ; Lixia ZHANG ; Yang YANG ; Fupin HU ; Demei ZHU ; Han SHEN ; Wanqing ZHOU ; Wenen LIU ; Yanming LI ; Yi XIE ; Mei KANG ; Dawen GUO ; Jinying ZHAO ; Zhidong HU ; Jin LI ; Shanmei WANG ; Yafei CHU ; Yunsong YU ; Jie LIN ; Yingchun XU ; Xiaojiang ZHANG ; Jihong LI ; Bin SHAN ; Yan DU ; Ping JI ; Fengbo ZHANG ; Chao ZHUO ; Danhong SU ; Lianhua WEI ; Fengmei ZOU ; Xiaobo MA ; Yanping ZHENG ; Yuanhong XU ; Ying HUANG ; Yunzhuo CHU ; Sufei TIAN ; Hua YU ; Xiangning HUANG ; Sufang GUO ; Xuesong XU ; Chao YAN ; Fangfang HU ; Yan JIN ; Chunhong SHAO ; Wei JIA ; Gang LI ; Jinsong WU ; Yuemei LU ; Fang DONG ; Zhiyong LÜ ; Lei ZHU ; Jinhua MENG ; Shuping ZHOU ; Yan ZHOU ; Chuanqing WANG ; Pan FU ; Yunjian HU ; Xiaoman AI ; Ziyong SUN ; Zhongju CHEN ; Hong ZHANG ; Chun WANG ; Yuxing NI ; Jingyong SUN ; Kaizhen WEN ; Yirong ZHANG ; Ruyi GUO ; Yan ZHU ; Jinju DUAN ; Jianbang KANG ; Xuefei HU ; Shifu WANG ; Yunsheng CHEN ; Qing MENG ; Yong ZHAO ; Ping GONG ; Ruizhong WANG ; Hua FANG ; Jilu SHEN ; Jiangshan LIU ; Hongqin GU ; Jiao FENG ; Shunhong XUE ; Bixia YU ; Wen HE ; Lin JIANG ; Longfeng LIAO ; Chunlei YUE ; Wenhui HUANG
Chinese Journal of Infection and Chemotherapy 2025;25(3):279-289
Objective To investigate the distribution and antimicrobial resistance profiles of common pathogens isolated from cerebrospinal fluid(CSF)in CHINET program from 2015 to 2021.Methods The bacterial strains isolated from CSF were identified in accordance with clinical microbiology practice standards.Antimicrobial susceptibility test was conducted using Kirby-Bauer method and automated systems per the unified CHINET protocol.Results A total of 14 014 bacterial strains were isolated from CSF samples from 2015 to 2021,including the strains isolated from inpatients(95.3%)and from outpatient and emergency care patients(4.7%).Overall,19.6%of the isolates were from children and 80.4%were from adults.Gram-positive and Gram-negative bacteria accounted for 68.0%and 32.0%,respectively.Coagulase negative Staphylococcus accounted for 73.0%of the total Gram-positive bacterial isolates.The prevalence of MRSA was 38.2%in children and 45.6%in adults.The prevalence of MRCNS was 67.6%in adults and 69.5%in children.A small number of vancomycin-resistant Enterococcus faecium(2.2%)and linezolid-resistant Enterococcus faecalis(3.1%)were isolated from adult patients.The resistance rates of Escherichia coli and Klebsiella pneumoniae to ceftriaxone were 52.2%and 76.4%in children,70.5%and 63.5%in adults.The prevalence of carbapenem-resistant E.coli and K.pneumoniae(CRKP)was 1.3%and 47.7%in children,6.4%and 47.9%in adults.The prevalence of carbapenem-resistant Acinetobacter baumannii(CRAB)and Pseudomonas aeruginosa(CRPA)was 74.0%and 37.1%in children,81.7%and 39.9%in adults.Conclusions The data derived from antimicrobial resistance surveillance are crucial for clinicians to make evidence-based decisions regarding antibiotic therapy.Attention should be paid to the Gram-negative bacteria,especially CRKP and CRAB in central nervous system(CNS)infections.Ongoing antimicrobial resistance surveillance is helpful for optimizing antibiotic use in CNS infections.
6.Changing antibiotic resistance profiles of the bacterial strains isolated from geriatric patients in hospitals across China:data from CHINET Antimicrobial Resistance Surveillance Program,2015-2021
Xiaoman AI ; Yunjian HU ; Chunyue GE ; Yang YANG ; Fupin HU ; Demei ZHU ; Yingchun XU ; Xiaojiang ZHANG ; Hui LI ; Ping JI ; Yi XIE ; Mei KANG ; Chuanqing WANG ; Pan FU ; Yuanhong XU ; Ying HUANG ; Ziyong SUN ; Zhongju CHEN ; Yuxing NI ; Jingyong SUN ; Yunzhuo CHU ; Sufei TIAN ; Zhidong HU ; Jin LI ; Yunsong YU ; Jie LIN ; Bin SHAN ; Yan DU ; Sufang GUO ; Lianhua WEI ; Fengmei ZOU ; Hong ZHANG ; Chun WANG ; Chao ZHUO ; Danhong SU ; Dawen GUO ; Jinying ZHAO ; Hua YU ; Xiangning HUANG ; Wen'en LIU ; Yanming LI ; Yan JIN ; Chunhong SHAO ; Xuesong XU ; Chao YAN ; 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 ; Jinju DUAN ; Jianbang KANG ; Xiaobo MA ; Yanping ZHENG ; Ruyi GUO ; Yan ZHU ; Yunsheng CHEN ; Qing MENG ; Shifu WANG ; Xuefei HU ; Jilu SHEN ; Wenhui HUANG ; Ruizhong WANG ; Hua FANG ; Bixia YU ; Yong ZHAO ; Ping GONG ; Kaizhen WENG ; Yirong ZHANG ; Jiangshan LIU ; Longfeng LIAO ; Hongqin GU ; Lin JIANG ; Wen HE ; Shunhong XUE ; Jiao FENG ; Chunlei YUE
Chinese Journal of Infection and Chemotherapy 2025;25(3):290-302
Objective To investigate the antimicrobial resistance of clinical isolates from elderly patients(≥65 years)in major medical institutions across China.Methods Bacterial strains were isolated from elderly patients in 52 hospitals participating in the CHINET Antimicrobial Resistance Surveillance Program during the period from 2015 to 2021.Antimicrobial susceptibility test was carried out by disk diffusion method and automated systems according to the same CHINET protocol.The data were interpreted in accordance with the breakpoints recommended by the Clinical and Laboratory Standards Institute(CLSI)in 2021.Results A total of 514 715 nonduplicate clinical isolates were collected from elderly patients in 52 hospitals from January 1,2015 to December 31,2021.The number of isolates accounted for 34.3%of the total number of clinical isolates from all patients.Overall,21.8%of the 514 715 strains were gram-positive bacteria,and 78.2%were gram-negative bacteria.Majority(90.9%)of the strains were isolated from inpatients.About 42.9%of the strains were isolated from respiratory specimens,and 22.9%were isolated from urine.More than half(60.7%)of the strains were isolated from male patients,and 39.3%isolated from females.About 51.1%of the strains were isolated from patients aged 65-<75 years.The prevalence of methicillin-resistant strains(MRSA)was 38.8%in 32 190 strains of Staphylococcus aureus.No vancomycin-or linezolid-resistant strains were found.The resistance rate of E.faecalis to most antibiotics was significantly lower than that of Enterococcus faecium,but a few vancomycin-resistant strains(0.2%,1.5%)and linezolid-resistant strains(3.4%,0.3%)were found in E.faecalis and E.faecium.The prevalence of penicillin-susceptible S.pneumoniae(PSSP),penicillin-intermediate S.pneumoniae(PISP),and penicillin-resistant S.pneumoniae(PRSP)was 94.3%,4.0%,and 1.7%in nonmeningitis S.pneumoniae isolates.The resistance rates of Klebsiella spp.(Klebsiella pneumoniae 93.2%)to imipenem and meropenem were 20.9%and 22.3%,respectively.Other Enterobacterales species were highly sensitive to carbapenem antibiotics.Only 1.7%-7.8%of other Enterobacterales strains were resistant to carbapenems.The resistance rates of Acinetobacter spp.(Acinetobacter baumannii 90.6%)to imipenem and meropenem were 68.4%and 70.6%respectively,while 28.5%and 24.3%of P.aeruginosa strains were resistant to imipenem and meropenem,respectively.Conclusions The number of clinical isolates from elderly patients is increasing year by year,especially in the 65-<75 age group.Respiratory tract isolates were more prevalent in male elderly patients,and urinary tract isolates were more prevalent in female elderly patients.Klebsiella isolates were increasingly resistant to multiple antimicrobial agents,especially carbapenems.Antimicrobial resistance surveillance is helpful for accurate empirical antimicrobial therapy in elderly patients.
7.Distribution and resistance profiles of bacterial strains isolated from cerebrospinal fluid in hospitals across China:results from the CHINET Antimicrobial Resistance Surveillance Program,2015-2021
Juan MA ; Lixia ZHANG ; Yang YANG ; Fupin HU ; Demei ZHU ; Han SHEN ; Wanqing ZHOU ; Wenen LIU ; Yanming LI ; Yi XIE ; Mei KANG ; Dawen GUO ; Jinying ZHAO ; Zhidong HU ; Jin LI ; Shanmei WANG ; Yafei CHU ; Yunsong YU ; Jie LIN ; Yingchun XU ; Xiaojiang ZHANG ; Jihong LI ; Bin SHAN ; Yan DU ; Ping JI ; Fengbo ZHANG ; Chao ZHUO ; Danhong SU ; Lianhua WEI ; Fengmei ZOU ; Xiaobo MA ; Yanping ZHENG ; Yuanhong XU ; Ying HUANG ; Yunzhuo CHU ; Sufei TIAN ; Hua YU ; Xiangning HUANG ; Sufang GUO ; Xuesong XU ; Chao YAN ; Fangfang HU ; Yan JIN ; Chunhong SHAO ; Wei JIA ; Gang LI ; Jinsong WU ; Yuemei LU ; Fang DONG ; Zhiyong LÜ ; Lei ZHU ; Jinhua MENG ; Shuping ZHOU ; Yan ZHOU ; Chuanqing WANG ; Pan FU ; Yunjian HU ; Xiaoman AI ; Ziyong SUN ; Zhongju CHEN ; Hong ZHANG ; Chun WANG ; Yuxing NI ; Jingyong SUN ; Kaizhen WEN ; Yirong ZHANG ; Ruyi GUO ; Yan ZHU ; Jinju DUAN ; Jianbang KANG ; Xuefei HU ; Shifu WANG ; Yunsheng CHEN ; Qing MENG ; Yong ZHAO ; Ping GONG ; Ruizhong WANG ; Hua FANG ; Jilu SHEN ; Jiangshan LIU ; Hongqin GU ; Jiao FENG ; Shunhong XUE ; Bixia YU ; Wen HE ; Lin JIANG ; Longfeng LIAO ; Chunlei YUE ; Wenhui HUANG
Chinese Journal of Infection and Chemotherapy 2025;25(3):279-289
Objective To investigate the distribution and antimicrobial resistance profiles of common pathogens isolated from cerebrospinal fluid(CSF)in CHINET program from 2015 to 2021.Methods The bacterial strains isolated from CSF were identified in accordance with clinical microbiology practice standards.Antimicrobial susceptibility test was conducted using Kirby-Bauer method and automated systems per the unified CHINET protocol.Results A total of 14 014 bacterial strains were isolated from CSF samples from 2015 to 2021,including the strains isolated from inpatients(95.3%)and from outpatient and emergency care patients(4.7%).Overall,19.6%of the isolates were from children and 80.4%were from adults.Gram-positive and Gram-negative bacteria accounted for 68.0%and 32.0%,respectively.Coagulase negative Staphylococcus accounted for 73.0%of the total Gram-positive bacterial isolates.The prevalence of MRSA was 38.2%in children and 45.6%in adults.The prevalence of MRCNS was 67.6%in adults and 69.5%in children.A small number of vancomycin-resistant Enterococcus faecium(2.2%)and linezolid-resistant Enterococcus faecalis(3.1%)were isolated from adult patients.The resistance rates of Escherichia coli and Klebsiella pneumoniae to ceftriaxone were 52.2%and 76.4%in children,70.5%and 63.5%in adults.The prevalence of carbapenem-resistant E.coli and K.pneumoniae(CRKP)was 1.3%and 47.7%in children,6.4%and 47.9%in adults.The prevalence of carbapenem-resistant Acinetobacter baumannii(CRAB)and Pseudomonas aeruginosa(CRPA)was 74.0%and 37.1%in children,81.7%and 39.9%in adults.Conclusions The data derived from antimicrobial resistance surveillance are crucial for clinicians to make evidence-based decisions regarding antibiotic therapy.Attention should be paid to the Gram-negative bacteria,especially CRKP and CRAB in central nervous system(CNS)infections.Ongoing antimicrobial resistance surveillance is helpful for optimizing antibiotic use in CNS infections.
8.Changing antibiotic resistance profiles of the bacterial strains isolated from geriatric patients in hospitals across China:data from CHINET Antimicrobial Resistance Surveillance Program,2015-2021
Xiaoman AI ; Yunjian HU ; Chunyue GE ; Yang YANG ; Fupin HU ; Demei ZHU ; Yingchun XU ; Xiaojiang ZHANG ; Hui LI ; Ping JI ; Yi XIE ; Mei KANG ; Chuanqing WANG ; Pan FU ; Yuanhong XU ; Ying HUANG ; Ziyong SUN ; Zhongju CHEN ; Yuxing NI ; Jingyong SUN ; Yunzhuo CHU ; Sufei TIAN ; Zhidong HU ; Jin LI ; Yunsong YU ; Jie LIN ; Bin SHAN ; Yan DU ; Sufang GUO ; Lianhua WEI ; Fengmei ZOU ; Hong ZHANG ; Chun WANG ; Chao ZHUO ; Danhong SU ; Dawen GUO ; Jinying ZHAO ; Hua YU ; Xiangning HUANG ; Wen'en LIU ; Yanming LI ; Yan JIN ; Chunhong SHAO ; Xuesong XU ; Chao YAN ; 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 ; Jinju DUAN ; Jianbang KANG ; Xiaobo MA ; Yanping ZHENG ; Ruyi GUO ; Yan ZHU ; Yunsheng CHEN ; Qing MENG ; Shifu WANG ; Xuefei HU ; Jilu SHEN ; Wenhui HUANG ; Ruizhong WANG ; Hua FANG ; Bixia YU ; Yong ZHAO ; Ping GONG ; Kaizhen WENG ; Yirong ZHANG ; Jiangshan LIU ; Longfeng LIAO ; Hongqin GU ; Lin JIANG ; Wen HE ; Shunhong XUE ; Jiao FENG ; Chunlei YUE
Chinese Journal of Infection and Chemotherapy 2025;25(3):290-302
Objective To investigate the antimicrobial resistance of clinical isolates from elderly patients(≥65 years)in major medical institutions across China.Methods Bacterial strains were isolated from elderly patients in 52 hospitals participating in the CHINET Antimicrobial Resistance Surveillance Program during the period from 2015 to 2021.Antimicrobial susceptibility test was carried out by disk diffusion method and automated systems according to the same CHINET protocol.The data were interpreted in accordance with the breakpoints recommended by the Clinical and Laboratory Standards Institute(CLSI)in 2021.Results A total of 514 715 nonduplicate clinical isolates were collected from elderly patients in 52 hospitals from January 1,2015 to December 31,2021.The number of isolates accounted for 34.3%of the total number of clinical isolates from all patients.Overall,21.8%of the 514 715 strains were gram-positive bacteria,and 78.2%were gram-negative bacteria.Majority(90.9%)of the strains were isolated from inpatients.About 42.9%of the strains were isolated from respiratory specimens,and 22.9%were isolated from urine.More than half(60.7%)of the strains were isolated from male patients,and 39.3%isolated from females.About 51.1%of the strains were isolated from patients aged 65-<75 years.The prevalence of methicillin-resistant strains(MRSA)was 38.8%in 32 190 strains of Staphylococcus aureus.No vancomycin-or linezolid-resistant strains were found.The resistance rate of E.faecalis to most antibiotics was significantly lower than that of Enterococcus faecium,but a few vancomycin-resistant strains(0.2%,1.5%)and linezolid-resistant strains(3.4%,0.3%)were found in E.faecalis and E.faecium.The prevalence of penicillin-susceptible S.pneumoniae(PSSP),penicillin-intermediate S.pneumoniae(PISP),and penicillin-resistant S.pneumoniae(PRSP)was 94.3%,4.0%,and 1.7%in nonmeningitis S.pneumoniae isolates.The resistance rates of Klebsiella spp.(Klebsiella pneumoniae 93.2%)to imipenem and meropenem were 20.9%and 22.3%,respectively.Other Enterobacterales species were highly sensitive to carbapenem antibiotics.Only 1.7%-7.8%of other Enterobacterales strains were resistant to carbapenems.The resistance rates of Acinetobacter spp.(Acinetobacter baumannii 90.6%)to imipenem and meropenem were 68.4%and 70.6%respectively,while 28.5%and 24.3%of P.aeruginosa strains were resistant to imipenem and meropenem,respectively.Conclusions The number of clinical isolates from elderly patients is increasing year by year,especially in the 65-<75 age group.Respiratory tract isolates were more prevalent in male elderly patients,and urinary tract isolates were more prevalent in female elderly patients.Klebsiella isolates were increasingly resistant to multiple antimicrobial agents,especially carbapenems.Antimicrobial resistance surveillance is helpful for accurate empirical antimicrobial therapy in elderly patients.
9.Gastrointestinal hamartomatous inverted hyperplastic polyps: a clinicopathological analysis of ten cases
Lin MENG ; Yong GUO ; Xin ZHAO ; Ling CHEN ; Xuchun JIA ; Zengshan LI ; Liying ZHANG
Chinese Journal of Pathology 2025;54(2):142-148
Objective:To investigate the clinicopathological features, diagnosis, genetic alterations, and biological behaviors of hamartomatous inverted hyperplastic polyp (HIHP) in the gastrointestinal tract.Methods:The clinical, sonographic, endoscopic and pathologic data of 10 HIHP cases diagnosed at the First Affiliated Hospital of Air Force Medical University, Xi′an, China from January 2013 to March 2024 were collected. Their clinicopathological features and histological morphology were analyzed. The cases were further divided into 3 histologic subtypes. Follow-up information was collected to analyze the relationship between histological subtype and prognosis.Results:There were 5 males and 5 females in this cohort. The age of onset was 45-68 years, with a median age of 60.5 years. The polyp-involved sites included 2 cases in gastric fundus, 6 cases in gastric body, 1 case in gastric antrum, and 1 case in duodenum. Digestive endoscopy showed mucosal protrusion lesions in all cases, except 1 case (case 10) of shallow depression on the surface, with the maximum diameter ranging 0.5-2.5 cm. Endoscopic ultrasonography showed multilocular cystic low-density shadows, with septal enhancement (case 4). The preoperative clinical diagnosis was gastric polyp, ectopic pancreas or gastrointestinal stromal tumor. Two cases showed type 1 morphology (i.e., connected with the mucosa, with clear smooth muscle boundaries). One of them (case 10) had a clear opening to form a vase-like morphology, while the other (case 4) had no obvious opening with the surface mucosa. Three cases showed type 2 morphology (i.e., not connected with the mucosa, with clear smooth muscle boundaries). Five cases showed type 3 morphology (i.e., not connected with the mucosa, without clear smooth muscle boundaries or hyperplastic smooth muscle that separated hyperplastic glands showing lobular configuration). Among them, one case of duodenal lesions (case 9) showed gastric type gland hyperplasia and expansion, including gastric fossa, gastric fundic gland and pyloric gland, with various arrangement and combination, accompanied by smooth muscle hyperplasia. In case 10, there was leiomyomatous proliferation in the stroma. The cases 2 and 4 had atypical glandular structures and cell morphology, but immunohistochemistry showed wild-type expression pattern of p53 and a Ki-67 proliferation index of less than 1%, suggesting that it was reactive atypia secondary to inflammation. The results showed that 3 cases had different gene mutations, and no recurrent gene change was identified. All patients survived without disease during the follow-up period of 1-130 months.Conclusions:HIHP is a benign lesion and has no consistently detectable genetic alterations. The histological characteristics of gastrointestinal polyps are complex. Especially, the types 1 and 3 of HIHP have unique gross and microscopic features, which require combination of proper endoscopic sampling and histological examination to correctly classify them.
10.Isoliquiritigenin(ISL)inhibits proliferation and migration of vascular smooth muscle cells by regulating GRB2/ERK signaling
Li-peng QIN ; Xue-liang GAO ; Li-min GAO ; Yong-zhang LI ; Jia-ning ZHAO
Chinese Pharmacological Bulletin 2025;41(3):543-554
Aim To explore the relevant mechanisms of isoliquiritigenin(ISL)in inhibiting the proliferation and migration of vascular smooth muscle cells(VSMCs)by regulating the GRB2/ERK signaling pathway.Methods Human primary vascular smooth muscle cells(hVSMCs)were cultured,and stimulated with different concentrations of ISL and fixed concen-trations of growth factors PDGF-BB and EGF,respec-tively.Subsequently,the effect of overexpressing GRB2 on the efficacy of ISL was observed.CCK-8 assay was used to detect cell proliferation;BrdU assay was used to detect DNA synthesis;Western blot was used to de-tect the expression levels of OPN,ICAM-1,VCAM-1,GRB2,ERK1/2,and p-ERK1/2;wound healing assay was used to detect cell migration;transwell assay was used to detect cell invasion.Results Compared with the blank control group and the ISL 20 mg·L-1 group,the PDGF-BB group and the EGF group showed increased cell viability and DNA synthesis,decreased cell migration distance,and increased number of inva-sive cells.Additionally,the expression levels of GRB2 and p-ERK1/2 increased.Compared with the PDGF-BB 40 μg·L-1group or the EGF 10 mg·L-1 group,the ISL drug intervention group showed decreased cell viability and DNA synthesis,increased migration dis-tance of cells,decreased number of invasive cells,and decreased expression levels of GRB2 and p-ERK1/2.Compared with the ISL 20 mg·L-1+PDGF-BB and ISL 20 mg·L-1+EGF groups,the groups with ISL+PDGF-BB+pcDNA-GRB2 group and ISL+EGF+pcDNA-GRB2 group showed increased expression lev-els of GRB2,p-ERK1/2,OPN,ICAM-1,and VCAM-1,increased cell viability and DNA synthesis,decreased migration distance,and increased number of invasive cells.Compared with the ISL+PDGF-BB+pcDNA-GRB2 group and the ISL+EGF+pcDNA-GRB2 group,the pcDNA-GRB2+PDGF-BB group or the pcDNA-GRB2+EGF group showed increased expres-sion levels of GRB2,p-ERK1/2,OPN,ICAM-1,and VCAM-1,increased cell viability and DNA synthesis,decreased migration distance,and increased number of invasive cells.Conclusions Isoliquiritigenin inhibits the proliferation and migration of vascular smooth mus-cle cells by regulating the GRB2/ERK signaling path-way.

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