1.Whole genome sequencing and analysis of multidrug resistant ST314 Salmonella Kentucky from a broiler slaughterhouse
Jia-rui LI ; Rui-yuan SUN ; Pei-jie HE ; Hao-tian LIU ; Ru-yi KUANG ; Jing XIA ; Min CUI ; Yong HUANG ; Li-kou ZOU ; Xin-feng HAN
Chinese Journal of Zoonoses 2025;41(5):537-543
This study investigated the potential pathogenicity and genetic characteristics of ST314 Salmonella Kentucky(S.Ken-tucky)isolates from a broiler slaughterhouse.Antimicrobial susceptibility testing and whole-genome sequencing(WGS)were used to determine antimicrobial resistance,virulence factors,and the presence of antimicrobial resistance genes(ARGs)and mobile genetic elements(MGEs)among the isolates.The three multidrug resistant(MDR)isolates exhibited high resistance to multiple antimicrobial agents.The F4-2S strain exhibited resistance to 14 drugs across seven categories,whereas the F4T strain showed resistance to 13 drugs in the same number of categories.In contrast,the Y23 strain was resistant to nine drugs in six categories.Notably,F4-2S dem-onstrated high homology with F4T:both possessed 13 ARGs distributed across nine categories,in addition to a wide range of virulence factors,including secretion systems and effector proteins.The presence of IncR and IncX1 plasmids significantly enhanced both the antimicrobial resistance and pathogenicity of the isolates.The genome map of Y23 revealed a chromosome alongside two plasmids.The chromosome containedonly one resistance gene but several virulence factors,including the type III secretion system(T3SS),which is crucial for bacterial invasion.The plasmid pY23-1 contained eight types of 19 ARGs.Comparative analysis indicated that pY23-1 ex-hibited high homology with pZ1323SSL0055 and pSAL-045,all of which contained multiple ARGs,thus suggesting critical roles of these genes in the evolution of bacterial resistance.In conclusion,ST314 S.Kentucky demonstrated a complex mechanism of resis-tance coupled with significant pathogenic potential.The ARGs and MGEs in the plasmid contributed to the emergence and dissemina-tion of antimicrobial resistance.The multiple virulence factors present in the chromosome may be key factors driving the increasing virulence of ST314 S.Kentucky.
2.Whole genome sequencing and analysis of multidrug resistant ST314 Salmonella Kentucky from a broiler slaughterhouse
Jia-rui LI ; Rui-yuan SUN ; Pei-jie HE ; Hao-tian LIU ; Ru-yi KUANG ; Jing XIA ; Min CUI ; Yong HUANG ; Li-kou ZOU ; Xin-feng HAN
Chinese Journal of Zoonoses 2025;41(5):537-543
This study investigated the potential pathogenicity and genetic characteristics of ST314 Salmonella Kentucky(S.Ken-tucky)isolates from a broiler slaughterhouse.Antimicrobial susceptibility testing and whole-genome sequencing(WGS)were used to determine antimicrobial resistance,virulence factors,and the presence of antimicrobial resistance genes(ARGs)and mobile genetic elements(MGEs)among the isolates.The three multidrug resistant(MDR)isolates exhibited high resistance to multiple antimicrobial agents.The F4-2S strain exhibited resistance to 14 drugs across seven categories,whereas the F4T strain showed resistance to 13 drugs in the same number of categories.In contrast,the Y23 strain was resistant to nine drugs in six categories.Notably,F4-2S dem-onstrated high homology with F4T:both possessed 13 ARGs distributed across nine categories,in addition to a wide range of virulence factors,including secretion systems and effector proteins.The presence of IncR and IncX1 plasmids significantly enhanced both the antimicrobial resistance and pathogenicity of the isolates.The genome map of Y23 revealed a chromosome alongside two plasmids.The chromosome containedonly one resistance gene but several virulence factors,including the type III secretion system(T3SS),which is crucial for bacterial invasion.The plasmid pY23-1 contained eight types of 19 ARGs.Comparative analysis indicated that pY23-1 ex-hibited high homology with pZ1323SSL0055 and pSAL-045,all of which contained multiple ARGs,thus suggesting critical roles of these genes in the evolution of bacterial resistance.In conclusion,ST314 S.Kentucky demonstrated a complex mechanism of resis-tance coupled with significant pathogenic potential.The ARGs and MGEs in the plasmid contributed to the emergence and dissemina-tion of antimicrobial resistance.The multiple virulence factors present in the chromosome may be key factors driving the increasing virulence of ST314 S.Kentucky.
3.Clinical study of 19 cases of steroid-refractory gastrointestinal acute graft-versus-host disease after allogeneic hematopoietic stem cell transplantation with fecal microbiota transplantation.
Yu Yu ZHENG ; Xiao Tian YANG ; Guo Qiang LIN ; Mei Ru BIAN ; Ye Jun SI ; Xing Xia ZHANG ; Yan Ming ZHANG ; De Pei WU
Chinese Journal of Hematology 2023;44(5):401-407
Objective: To investigate the clinical efficacy of fecal microbiota transplantation (FMT) for treating steroid-refractory gastrointestinal acute graft-versus-host disease (GI-aGVHD) . Methods: This analysis included 29 patients with hematology who developed steroid-refractory GI-aGVHD after allogeneic hematopoietic stem cell transplantation (allo-HSCT) in Huaian Hospital Affiliated to Xuzhou Medical University from March 2017 to March 2022. Among them, 19 patients underwent FMT treatment (the FMT group) and 10 patients did not (the control group). The efficacy and safety of FMT were assessed, as well as the changes in intestinal microbiota abundance, lymphocyte subpopulation ratio, peripheral blood inflammatory cytokines, and GVHD biomarkers before and after FMT treatment. Results: ① Complete remission of clinical symptoms after FMT was achieved by 13 (68.4%) patients and 2 (20.0%) controls, with a statistically significant difference (P<0.05). Intestinal microbiota diversity increased and gradually recovered to normal levels after FMT and FMT-related infections did not occur. ②The proportion of CD3(+) and CD8(+) cells in the FMT group after treatment decreased compared with the control group, and the ratio of CD4(+), regulatory T cells (Treg), and CD4(+)/CD8(+) cells increased (all P< 0.05). The interleukin (IL) -6 concentration in the FMT group was lower than that in the control group [4.15 (1.91-5.71) ng/L vs 6.82 (2.40-8.91) ng/L, P=0.040], and the IL-10 concentration in the FMT group was higher than that in the control group [12.11 (5.69-20.36) ng/L vs 7.51 (4.10-9.58) ng/L, P=0.024]. Islet-derived protein 3α (REG3α) was significantly increased in patients with GI-aGVHD, and the REG3α level in the FMT group was lower than that in the control group after treatment [30.70 (10.50-105.00) μg/L vs 74.35 (33.50-139.50) μg/L, P=0.021]. Conclusion: FMT is a safe and effective method for the treatment of steroid-refractory GI-aGVHD by restoring intestinal microbiota diversity, regulating inflammatory cytokines, and upregulating Treg cells.
Humans
;
Fecal Microbiota Transplantation/methods*
;
Treatment Outcome
;
Graft vs Host Disease/etiology*
;
Hematopoietic Stem Cell Transplantation/adverse effects*
;
Steroids
4.Association between body mass index and coronary heart disease in Qingdao: a prospective study.
Jia Hui SONG ; Chi PAN ; Fei Fei LI ; Xiao Jia XUE ; Yu GUO ; Pei PEI ; Xiao Cao TIAN ; Shao Jie WANG ; Ru Qin GAO ; Zeng Chang PANG ; Zhengming CHEN ; Liming LI
Chinese Journal of Epidemiology 2022;43(9):1357-1363
Objective: To analyze the association between body mass index (BMI) and coronary heart disease. Methods: The data for the present study were from the prospective cohort study of China Kadoorie Biobank (CKB) in Qingdao, a total of 33 355 participants aged 30-79 years were included in the study. Cox regression analyses were performed to evaluate the association between BMI and coronary heart disease. Results: During the follow-up for an average 9.2 years, a total of 2 712 cases of ischemic heart disease (IHD) and 420 cases of major coronary events (MCE) were found. Multivariate Cox regression analysis showed that, compared with participants with normal BMI, the participants who were overweight had a 41% and 87% higher risk of IHD and MCE, the adjusted HR were 1.41 (95%CI: 1.27-1.56) and 1.87 (95%CI: 1.43-2.44), respectively. The participants who were obesity had 91% and 143% higher risk of IHD and MCE, the adjusted HR were 1.91 (95%CI: 1.72-2.13) and 2.43 (95%CI: 1.82-3.24), respectively. Conclusion: Overweight and obesity might increase the risk for IHD and MCE.
Body Mass Index
;
Coronary Disease/epidemiology*
;
Humans
;
Myocardial Ischemia/epidemiology*
;
Obesity/epidemiology*
;
Overweight/epidemiology*
;
Prospective Studies
5.A prospective randomized controlled study on the effects of bicycle ergometer rehabilitation training on quadriceps and walking ability of patients with lower limb dysfunction caused by extensive burns.
Kun Ping WU ; Pei CHEN ; Tian Feng RU ; Lin YUAN ; Hao LUO ; Wei Guo XIE
Chinese Journal of Burns 2022;38(5):447-453
Objective: To explore the effects of bicycle ergometer rehabilitation training on quadriceps and walking ability of patients with lower limb dysfunction caused by extensive burns. Methods: A prospective randomized controlled study was conducted. A total of 40 patients with extensive burns who met the inclusion criteria and were admitted to Tongren Hospital of Wuhan University&Wuhan Third Hospital from December 2017 to December 2020 were selected. According to the random number table, the patients were divided into conventional training group (16 males, 4 females, aged (45±10) years) and combined training group (13 males, 7 females, aged (39±8) years). Patients in conventional training group were given conventional rehabilitation therapy such as joint loosening, lower limb strength training, walking training, and pressure therapy, while patients in combined training group were given additional bicycle ergometer rehabilitation training on the basis of conventional rehabilitation. For patients in the 2 groups before and after a 2-month's treatment, the thickness of quadriceps was measured by ultrasonic diagnostic instrument, the muscle strength of quadriceps was measured by portable muscle strength tester, the walking ability was tested with a 6-min and a 10-meter walk tests, and the patients' satisfaction for treatment effects was assessed using the modified Likert scale. Data were statistically analyzed with independent or paired sample t test, Mann-Whitney U test, Wilcoxon signed rank test, or chi-square test. Results: After 2-month's treatment, the quadriceps thickness of patients in combined training group was (3.76±0.39) cm, which was significantly thicker than (3.45±0.35) cm in conventional training group (t=2.67, P<0.05); quadriceps thickness of patients in conventional training group and combined training group after 2-month's treatment was significantly thicker than that before treatment (with t values of 5.99 and 8.62, respectively, P<0.01). After 2-month's treatment, the quadriceps muscle strength of patients in combined training group was significantly greater than that in conventional training group (Z=2.69, P<0.01); quadriceps muscle strength of patients in conventional training group and combined training group after 2-month's treatment was significantly greater than that before treatment (with Z values of 3.92 and 3.92, respectively, P<0.01). After 2-month's treatment, the 6-min walking distance of patients in combined training group was (488±39) m, which was significantly longer than (429±25) m in conventional training group (t=5.66, P<0.01); the 6-min walking distance of patients after 2-month's treatment in conventional training group and combined training group was significantly longer than that before treatment (with t values of 13.16 and 17.92, respectively, P<0.01). After 2-month's treatment, the 10-meter walking time of patients in combined training group was significantly shorter than that in conventional training group (t=3.20, P<0.01); and the 10-meter walking time in conventional training group and combined training group was significantly shorter than that before treatment (with t values of 7.21 and 13.13, respectively, P<0.01). The patients' satisfaction score for treatment effects in combined training group was significantly higher than that in conventional training group (Z=3.14, P<0.01), and the patients' satisfaction scores for treatment effects in conventional training group and combined training group after 2-month's treatment were significantly greater than those before treatment (with Z values of 3.98 and 4.04, respectively, P<0.01). Conclusions: Bicycle ergometer rehabilitation training can be used to improve quadriceps thickness, muscle strength, and walking ability of patients with lower limb dysfunction caused by extensive burns. It can also improve the satisfaction of patients with the treatment outcome, and therefore is worthy of promotion.
Bicycling
;
Burns/therapy*
;
Female
;
Humans
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Lower Extremity
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Male
;
Prospective Studies
;
Quadriceps Muscle
;
Treatment Outcome
;
Walking
6.The relationship between thrombin activatable fibrinolysis inhibitor and coronary heart disease
ZHAO Meng Nan ; TIAN Pei Ru ; QIU Li ; LI Yu Ning ; WANG Xiao Nan ; YI Bo Yu ; SHI Jing Pu
Journal of Preventive Medicine 2020;32(12):1208-1212
Objective:
To analyze the relationship between thrombin activatable fibrinolysis inhibitor ( TAFI ) and coronary heart disease ( CHD ), and to provide evidence for the prevention of CHD.
Methods:
The patients with CHD in Fushun Central Hospital in Liaoning Province were selected as the case group, the patients without CHD in the same hospital and period were selected as the control group. The demographic information and clinical examination results ( serum TAFI, lipid, glucose, etc. ) were collected to analyze the association between TAFI and CHD by logistic regression models.The multivariate logistic regression analysis was used to explore the relationship between TAFI and CHD.
Results:
There were 222 cases, including 100 cases of stable angina, 44 cases of unstable angina and 78 cases of acute myocardial infarction, and 222 controls. The median ages of cases and controls were 62 and 57 years old. The results of multivariate logistic regression analysis showed that serum TAFI>22.88 μg/mL ( P75 of controls ) was associated with the risk of CHD ( OR=1.619, 95%CI: 1.011-2.593 ), unstable angina ( OR=2.917, 95%CI: 1.433-5.939 ) and acute myocardial infarction ( OR=2.626, 95%CI: 1.007-6.847 ).
Conclusion
The high level of TAFI is related to CHD, unstable angina and acute myocardial infarction.
7.Comprehensive treatment with Chinese medicine in patients with advanced non-small cell lung cancer: A multicenter, prospective, cohort study.
Jie LIU ; Hong-Sheng LIN ; Wei HOU ; Bao-Jin HUA ; Pei-Tong ZHANG ; Jie LI ; Shen-Yu WANG ; Ying XIE ; Yue ZHANG ; Guang-Ru XIE ; Mei-Ying ZHANG ; Wen-Guang SHI ; Nian-Bo GUAN ; Tian-Yu GUAN ; Cong-Huang LI ; Li-Yuan LU ; Ying ZHANG ; Dao-Rui LI ; Hao LIU
Chinese journal of integrative medicine 2017;23(10):733-739
OBJECTIVETo determine whether additional Chinese medicine (CM) could prolong survival and improve the quality of life (QOL) in patients with advanced non-small cell lung cancer (NSCLC) compared with Western medicine (WM) alone.
METHODSThis was a multicenter, prospective cohort study. A total of 474 hospitalized patients with stage III-IV NSCLC were recruited and divided into 2 groups. Patients in the WM group received radiotherapy, chemotherapy, and optimal supportive therapy according to the National Comprehensive Cancer Network (NCCN) guidelines. In the integrative medicine (IM) group, individualized CM (Chinese patent medicines and injections) and WM were administered. The primary end point was overall survival, and the secondary end points were time to disease progression, adverse events, and QOL. Follow-up clinical examinations and chest radiography were performed every 2 months.
RESULTSThe median survival was 16.60 months in the IM group and 13.13 months in the WM group (P<0.01). The incidences of loss of appetite, nausea, and vomiting in the IM group were significantly lower than those in the WM group (P<0.05). The QOL based on Functional Assessment of Cancer Therapy-Lung in the IM group was markedly higher than that in the WM group at the fourth course (P<0.05).
CONCLUSIONSAdditional CM may prolong survival and improve the QOL patients with NSCLC. The adverse effects of radio- and chemotherapy may be attenuated as CM is used in combination with conventional treatments.
8.Analysis of therapeutic effects and prognostic factors of autolo-gous peripheral stem-cell transplantation for 30 patients with mul-tiple myeloma
Ting WANG ; Hui LIU ; Jiangtao LI ; Ru FENG ; Yuan TIAN ; Baoli XING ; Xiaodong XU ; Lei PEI ; Shangyong NING
Chinese Journal of Clinical Oncology 2015;(1):24-27
Objective:To evaluate the clinical efficiency and prognostic factors of autologous peripheral blood stem cell trans-plantation (APBSCT) in 30 cases of multiple myeloma (MM). Methods:Two of the 30 patients received the second treatment of APB-SCT because of relapse after the first treatment. Thus, a total of 32 case-times of APBSCT were studied. Combination chemotherapy was inducted regularly before APBSCT (11 patients used bortezomib as an induction drug), and chemotherapy combined with the G-CSF regimen was used to mobilize peripheral blood stem cells. Preconditioning was based on melphalan. Results:Mononuclear cells in harvest were 6.41 × 108/kg, and CD34+cells in harvest were 4.75 × 106/kg. The median times of neutrophil and platelet engraftment were 9.5 and 11 d, respectively. The complete remission (CR) and very good partial remission (VGPR) rates were 37.5%and 34.4%af-ter APBSCT, respectively. The median overall survival (OS) was 67.27 months in all patients, and the median progression-free survival (PFS) was 29.77 months. The median PFS rates were 29 and 20 months in the patients who achieved CR and PR, respectively, and the median PFS was not observed in the patients who achieved VGPR. Statistical differences in PFS were detected between the CR+VGPR and PR groups (P=0.025). The CR rates were 63.6%and 23.8%in the bortezomib (bortezomib-based chemotherapy) and non-bortezo-mib groups (P=0.034), respectively. The median OS and PFS were not obtained in the bortezomib group, whereas the median PFS was 22 months in the non-bortezomib group (P=0.045). Conclusion: MM patients treated with bortezomib-based chemotherapy followed by APBSCT had prolonged PFS. APBSCT can improve the response and survival of MM patients.
9.Monosomal karyotype among adult acute myeloid leukemia: clinical characteristic and prognostic analysis.
Ru FENG ; Hui LIU ; Naibai CHANG ; Yun FAN ; Jiangtao LI ; Yeping ZHANG ; Wei CHEN ; Haifei WANG ; Yuan TIAN ; Lei PEI ; Shangyong NING ; Baoli XING ; Xiaodong XU
Chinese Journal of Hematology 2014;35(5):393-396
OBJECTIVETo explore the clinical characteristics and prognostic value of monosomal karyotype (MK) patients in adult acute myeloid leukemia (AML).
METHODSWe retrospectively studied 45 patients of MK⁺ in newly-diagnosed adult AML in our center from Oct 2000 to Dec 2012. Clinical characteristics, cytogenetic data and prognostic features were analyzed in the cohort of MK⁺ patients.
RESULTSMK was found in 45 patients (19.0%) of 237 newly-diagnosed adult AML with cytogenetic data available at diagnoses. Among these 45 cases, there were 28 male (62.2%) and 17 female (37.8%). Median age of MK⁺ patients at diagnose was 58(18-91) years old. The presence of -5(31.1%) and -7(17.8%) were the most common chromatid among MK⁺ AML patients. MK was much more prevalent among elderly patients. Among AML patients, the proportions of MK⁺ patients younger than 30, 30 to 59 and older than 60 years old groups were 11.5%, 17.7% and 22.4%, respectively. There was no difference between MK⁺ and MK⁻ patients in gender distribution (P=0.545). There was also no difference between MK⁺ and MK⁻ patients in the distribution of FAB castigation (P=0.239). Median survival of MK⁺ AML patients was 6.5 months. Cumulative 5-year overall survival (OS) of was 5.2%. Forty-three MK⁺ patients (43/45, 95.6%) also had a complex karyotype (CK). Two cases that did not meet the CK had not achieved complete remission (CR), and died within 6 months. There were 12 patients who were CK⁺ in 192 MK⁻ patients. The differences of OS and CR rates between MK⁺CK⁺ patients and MK⁻CK⁺ were statistically significant (P<0.05).
CONCLUSIONThe increased detection rate of MK with age was associated with lower CR and OS in AML patients.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Chromosome Aberrations ; Female ; Humans ; Karyotyping ; Leukemia, Myeloid, Acute ; diagnosis ; genetics ; Male ; Middle Aged ; Monosomy ; Prognosis ; Remission Induction ; Retrospective Studies ; Young Adult
10.Effect of portable head computed tomography navigation-guided surgery on patients with hypertensive hematoma
Yi YANG ; Hong-Tian ZHANG ; Li-Hua CHEN ; Guang-Zhu ZHANG ; Pei-Jian LI ; Ru-Xiang XU
Chinese Journal of Neuromedicine 2013;12(8):806-809
Objective To evaluate the outcome and safety of portable 3D head computed tomography (CT) navigation-guided keyhole microsurgery in patients with hypertensive intracranial hematomas (HICH).Methods Thirty-five consecutive unconscious patients with a volume of HICH at 24-90 mL,admitted to our hospital from January 2010 to December 2012,were treated with 3D image-guided keyhole microsurgery.The preoperative and postoperative neurological status determined by Glasgow Coma Scale (GCS) and modified Rankin Scale (mRS).Outcome at six months was assessed by Glasgow Outcome Scale (GOS).Results Average time from admission to the operation room,time for CT scan,and average operation time were (11.22±6.37) h and (19±13.11) min and (108.49±26.61)min,respectively.The total and near total (>90%) hematoma evacuation rate was 96.9%.The mRS and GCS scores were significantly improved at discharge as compared with those before surgery (F=6.487,P<0.05).Six months after the surgery,57.1% patients achieved good recovery (GOS scores 4-5),and two patients died.Conclusion Keyhole minimally invasive hematoma with the help of portable head 3D reconstructed CT scan is highly effective in obtaining immediate and complete hematoma evacuation;portable CT is reliably and effective for preoperative navigation,and is very helpful for surgical management of patients with HICH.


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