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Jiao H, Yang H, Zheng W, Zhang Q, Zhao D, Li G. Enhancement of immune responses by co-administration of bacterial ghosts-mediated Neisseria gonorrhoeae DNA vaccines. J Appl Microbiol 2020; 130:1770-1777. [PMID: 32770820 DOI: 10.1111/jam.14815] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/20/2020] [Accepted: 08/04/2020] [Indexed: 01/09/2023]
Abstract
AIM Gonorrhoea remains a leading public health burden and the development of vaccine against gonorrhoea becomes more urgent. Here, a novel Neisseria gonorrhoeae DNA vaccine delivered by Salmonella enteritidis ghosts was developed and the immune responses of the vaccine candidate were evaluated. METHODS AND RESULTS Neisseria gonorrhoeae nspA gene was cloned into the pVAX1 vector. The constructed recombinant plasmid pVAX1-nspA was loaded into the lyophilized SE ghosts to produce SE ghosts (pVAX1-nspA). Then, the immune responses induced by SE ghosts (pVAX1-nspA) alone and co-administrated with SE ghosts (pVAX1-porB) were evaluated in mouse model. Co-administered SE ghosts (pVAX1-nspA) and SE ghosts (pVAX1-porB) could elicited significantly higher levels of specific IgG antibody responses and lymphocyte proliferative responses than the control groups. Furthermore, the group co-administered SE ghosts (pVAX1-nspA) and SE ghosts (pVAX1-porB) had the highest bactericidal antibody titres. CONCLUSIONS Co-administration of SE ghosts (pVAX1-nspA) and SE ghosts (pVAX1-porB) elicited significant specific humoral and cellular immune responses. SIGNIFICANCE AND IMPACT OF THE STUDY This study demonstrates the potential of co-administration of SE ghosts (pVAX1-nspA) and SE ghosts (pVAX1-porB) as an attractive vaccination regimen for gonorrhoea.
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Ma SC, Chen R, Yang TN, Zhang F, Zhao D. Baicalein inhibits the proliferative activity of human prostate cancer cell line PC3 by downregulating Ezrin. J BIOL REG HOMEOS AG 2020; 34:885-892. [PMID: 32691575 DOI: 10.23812/20-145-a-44] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
We aimed to elucidate the inhibitory effect of Baicalein on proliferative ability in Prostate cancer (PCa) through downregulating Ezrin. Relative level of Ezrin in PCa tissues and adjacent ones was detected. After PC3 cells were induced with 20 or 40 μM Baicalein, changes in viability, cell cycle progression and apoptosis were assessed. Relative levels of CyclinD1, CDK4, P53 and P21 were examined by quantitative real-time polymerase chain reaction (qRT-PCR). Regulatory effects of Ezrin and Baicalein treatment on PC3 cells were evaluated. Finally, in vivo effects of Ezrin and Baicalein treatment on nude mice bearing PCa were detected. Ezrin was upregulated in PCa tissues relative to adjacent normal ones. Baicalein treatment decreased viability, arrested cell cycle and stimulated apoptosis in PC3 cells. Meanwhile, Baicalein treatment downregulated CyclinD1 and CDK4, while upregulating P53 and P21. Moreover, Ezrin was downregulated in Baicalein-treated PC3 cells. Knockdown of Ezrin synergistically stimulated the effects of Baicalein on cellular phenotypes of PC3 cells. In nude mice bearing PCa, Baicalein treatment decreased tumor volume and tumor weight, which were much more pronounced in those with in vivo knockdown of Ezrin. Baicalein treatment suppresses proliferative ability, arrests cell cycle and stimulates apoptosis in PCa cells through downregulating Ezrin.
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Shen JQ, Ji Q, Ding WJ, Xia LM, Zhao D, Liu C, Sun YX, Wang CS. [Comparison of myotomy and coronary artery bypass grafting in surgical treatment of symptomatic left anterior descending myocardial bridges]. ZHONGHUA YI XUE ZA ZHI 2020; 100:3141-3146. [PMID: 33142395 DOI: 10.3760/cma.j.cn112137-20200321-00875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the effect of myotomy and coronary artery bypass grafting (CABG) to treat symptomatic myocardial bridges (MBs) of the left anterior descending artery (LAD). Methods: From January 2009 to December 2017, a total of 54 eligible patients [34 males, 20 females, with a median age of 60 (51, 64) years old] with symptomatic MBs of LAD who underwent myotomy (31 patients) or CABG (23 patients) at the Department of Cardiovascular Surgery of Zhongshan Hospital, Fudan University were included in the study. Surgical effect of the two groups were compared and multivariate logistic regression models were used to analyze the risk factors of major adverse cardiac events (MACE). Results: No significant differences between the two groups were observed with respect to age, gender, risk factors of coronary artery disease (CAD), symptoms, angiographic findings of MBs and preoperative cardiac status, and 0 surgery-associated death was observed. Among the 31 myotomy patients, 4 patients underwent off-pump myotomy (including one patient who underwent urgent conversion from off-pump to on-pump surgery due to massive hemorrhaging secondary to the right ventricular perforation), and the remaining 27 cases received myotomy under cardiopulmonary bypass with cardiac arrest. All 23 bypass surgery patients underwent off-pump CABG surgery with in situ left internal mammary artery (LIMA) grafting to the distal LAD. After LIMA grafting, the median graft flow was 14 (11, 20) ml/min. During a median follow-up of 26 months, 11 patients developed MACEs (7.4% for myotomy vs 40.9% for bypass surgery, P=0.007). Surgical strategy (CABG surgery vs myotomy) was an independent risk factor for MACE (OR=3.681, 95% CI: 1.812-8.685, P=0.011). Compared with myotomy, CABG surgery had a significantly higher incidence of adverse angiographic results (3.7% of residual compression vs 40.9% of LIMA graft failure, P=0.003). Among 10 CABG surgery patients with LAD-MBs and proximal coronary obstruction, all LIMA grafts were patent, though one case reported recurrent angina pectoris 2 years after the surgery which was relieved after drug therapy. Conclusions: For patients with symtomatic LAD-MBs, myotomy may be associated with favorable mid-term outcomes and angiographic results. However, CABG surgery should be recommended for those with concomitant proximal obstruction of LAD.
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Yang X, Wang H, Zhao D, Wang J, Liu X, Yuan X, Zhang M, Li G, Ran P, Yang P, Liu Z. Dust mite-derived Enterobacterial fimbriae H protein enforces the allergen specific immunotherapy in asthma mice. Allergol Immunopathol (Madr) 2020; 48:654-665. [PMID: 32446781 DOI: 10.1016/j.aller.2020.03.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 03/25/2020] [Accepted: 03/31/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND The mite alimentary canal contains plenty of microbiota. It is accepted that some of the microbial products function as adjuvants to speed up immune responses. OBJECTIVES We identified five bacterial proteins from dust mite, and Enterobacterial fimbriae H (FimH) was one of them. This study aims to test a hypothesis that the FimH protein enforces immunotherapy in asthmatic mice. METHODS Asthmatic mice were treated by allergen specific immunotherapy (ASIT) with rDer f1/f2 or rDer f1/f2 plus FimH. Changes in inflammatory cell infiltration, airway hyperreactivity, frequency of Tregs, splenic CD4+IFN-γ+ cells, and serum levels of TGF-β, IL-10, IL-13 and IL-17A of asthmatic mice were checked. RESULTS ASIT with rDer f1/f2 plus FimH reduced inflammatory cell infiltration, airway hyperreactivity (AHR), and levels of IgE and IgG1 compared to ASIT with rDer f1/f2 alone, but the levels of IgG2a increased. Asthmatic mice that underwent ASIT with rDer f1/f2 plus FimH showed increased frequency of Tregs, splenic CD4+IFN-γ+ cells, serum levels of TGF-β and IL-10; and deceased splenic CD4+IL-4+ cells, and serum levels of IL-13 and IL-17A. In vitro study showed FimH triggered IL-10 expression in a concentration dependent manner and facilitated the differentiation of Tregs. CONCLUSION Used as an adjuvant, FimH enforces the effect of ASIT in asthmatic mice via augmenting Tregs.
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Abdulkadir M, Zhao D, Abdulkareem L, Asikolaye N, Hernandez-Perez V. Insights into the transition from plug to slug flow in a horizontal pipe: An experimental study. Chem Eng Res Des 2020. [DOI: 10.1016/j.cherd.2020.08.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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81
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Dong D, Li S, Zhao D, Liu W, Li L, Sun Y, Xiao S, Zheng B, Wang W. A Nomogram to Predict Locoregional Recurrence after Surgery and Postoperative Adjuvant Radiation Therapy for Primary Mucosal Melanoma of the Head and Neck. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wang Z, Ji Y, Zhang H, Yan L, Zhao D, Gao P. Enhanced Enrichment Characteristics and Inhibition Kinetics Characteristics of the Anammox Granular Sludge. NATURE ENVIRONMENT AND POLLUTION TECHNOLOGY 2020. [DOI: 10.46488/nept.2020.v19i03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Kang BL, Shi MZ, Li SJ, Wang HH, Zhang Q, Zhao D, Li J, Song DW, Zheng LX, Nie LP, Wu T, Chen XH. Preformed Cooper Pairs in Layered FeSe-Based Superconductors. PHYSICAL REVIEW LETTERS 2020; 125:097003. [PMID: 32915588 DOI: 10.1103/physrevlett.125.097003] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 06/06/2020] [Accepted: 07/27/2020] [Indexed: 06/11/2023]
Abstract
Superconductivity arises from two distinct quantum phenomena: electron pairing and long-range phase coherence. In conventional superconductors, the two quantum phenomena generally take place simultaneously, while in the underdoped high- T_{c} cuprate superconductors, the electron pairing occurs at higher temperature than the long-range phase coherence. Recently, whether electron pairing is also prior to long-range phase coherence in single-layer FeSe film on SrTiO_{3} substrate is under debate. Here, by measuring Knight shift and nuclear spin-lattice relaxation rate, we unambiguously reveal a pseudogap behavior below T_{p}∼60 K in two kinds of layered FeSe-based superconductors with quasi2D nature. In the pseudogap regime, a weak diamagnetic signal and a remarkable Nernst effect are also observed, which indicates that the observed pseudogap behavior is related to superconducting fluctuations. These works confirm that strong phase fluctuation is an important character in the 2D iron-based superconductors as widely observed in high-T_{c} cuprate superconductors.
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Zhang ZJZ, Suo LD, Zhao D, Pan JB, Lu L. [Systematic reviews and evidence quality assessment on effectiveness of 1 dose varicella attenuated live vaccine for healthy children aged 1-12 years in China]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2020; 41:1138-1144. [PMID: 32741184 DOI: 10.3760/cma.j.cn112338-20191025-00762] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To assess the effectiveness of 1 dose varicella attenuated live vaccine (VarV) for healthy children aged 1-12 years in China and explore the application of the Grades of Recommendation, Assessment, Development, and Evaluation (GRADE) framework in observational studies of vaccine effectiveness (VE). Methods: We searched studies about the VE of 1-dose VarV for children aged 1-12 years in China which published before 2019 and evaluated the quality of the studies by the Newcastle Ottawa Scale (NOS) table. We used Meta-analysis models to obtain the pooled 1-dose VE and that in subgroups by study design, outbreak or not, study quality and age of subjects. The evidences of VEs were rated by means of the GRADE system. Results: Thirty-two studies were included and the pooled 1-dose VE was 75% [95% confidence interval (CI): 68%-80%]. The VE of outbreak studies [VE=66% (95%CI: 57%-73%)] was lower than non-outbreak studies [VE=85% (95%CI: 78%-89%)], and the VE in <6 years old children [VE=84% (95%CI:77%-89%)] was higher than that in ≥6 years old children [VE=60% (95%CI: 51%-68%)]. There was no significant difference in VE among studies with different design and quality. The quality of the evidences of pooled 1-dose VE was"very low", which was downgraded in bias risk and inconsistency and not downgraded in indirectness, imprecision and publication bias. Conclusions: The 1-dose VarV can provide medium level protection for 1-12 years old children in China, but it will decrease significantly for ≥6 years old children, so it is suggested to implement the strategies of two-dose vaccination of VarV in children <6 years old. The GRADE framework can be used in the observational studies of VE and it is suggested that the technical guidelines of observational study should be worked out to improve the overall quality of evidence.
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Zhao D, Zhu J, Hu K. [Stroke-associated pneumonia and stroke-induced immunodepression]. ZHONGHUA NEI KE ZA ZHI 2020; 59:395-399. [PMID: 32370473 DOI: 10.3760/cma.j.cn112138-20190806-00549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Chen QY, Tian HL, Yang B, Lin ZL, Zhao D, Ye C, Zhang XY, Qin HL, Li N. [Effect of intestinal preparation on the efficacy and safety of fecal microbiota transplantation treatment]. ZHONGHUA WEI CHANG WAI KE ZA ZHI = CHINESE JOURNAL OF GASTROINTESTINAL SURGERY 2020; 23:48-55. [PMID: 32594726 DOI: 10.3760/cma.j.cn.441530-20200418-00225] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Objective: To investigate the effect of intestinal preparation on the efficacy and complications of fecal microbiota transplantation (FMT). Methods: A retrospective cohort study was performed. Clinical and follow-up data of 1501 patients who received FMT in the department of Colorectal Disease Specialty, Intestinal Microecology Diagnosis and Treatment Center, the Tenth People's Hospital, Tongji University from February 2018 to June 2019 were collected retrospectively. According to the intestinal preparation before FMT treatment, patients were divided into non-intestinal preparation group (n=216), antibiotic pretreatment group (n=383), intestinal cleansing group (n=267), and antibiotic combined with intestinal cleansing group (n=635). The adverse reactions after FMT treatment and the effective rates at 4-week and 8-week after treatment among the groups were compared. Patients, who repeated FMT treatment in the 3rd month and the 6th month due to reduced efficacy or ineffectiveness were divided into two subgroups: without intestinal preparation group and with intestinal preparation group. The effective rates of the two subgroups were compared. Results: Of the 1501 cases, 588 were male and 913 were female with mean age of (43.3±13.7) years and body mass index of (20.2±2.1) kg/m(2). Transplantation course was (3.3±1.7) weeks. The underlying diseases mainly included constipation (n=564), Crohn's disease (n=157), ulcerative colitis (n=142), irritable bowel syndrome (n=158), recurrent C. difficile infection (CDI) (n=106), autism (n=84), radiation intestinal injury (n=133), radiation enteritis (n=133), and non-CDI chronic diarrhea (n=60); the remaining cases (n=155). Baseline data among the 4 groups were not significantly different (all P>0.05). The overall morbidity of complication was 31.1% (467/1501), including 41 cases of vomiting (2.7%), 91 of nausea (6.1%), 49 of diarrhea (3.3%), 41 of abdominal pain (2.7%), 79 of bloating (5.3%), 72 of throat pain (4.8%), 38 of dizziness (2.5%), 51 of fever (3.4%), 3 of pulmonary infection (0.2%) and 2 of intestinal infection (0.1%). The above symptoms disappeared after symptomatic treatment. There was no statistically significant difference in the incidence of adverse reactions among the 4 groups (P>0.05). After 4-week of FMT treatment, the overall effective rate was 63.5% (902/1420); the effective rate of non-intestinal preparation group, antibiotic pretreatment group, intestinal cleaning group, and antibiotic combined with intestinal cleansing groupwas 57.6% (114/198), 64.2% (231/360), 60.2% (154/265) and 66.5% (403/606), respectively, with no statistically significant difference (χ(2)=6.659, P=0.084). After 8-week of FMT treatment, the overall effective rate was 61.3% (729/1293); the effective rate of non-intestinal preparation group, antibiotic pretreatment group, intestinal cleaning group, and antibiotic combined with intestinal cleansing group was 54.0% (88/163), 62.2% (202/325), 57.4% (132/230) and 64.4% (370/575), respectively, with no statistically significant difference (χ(2)=13.620, P=0.003). The effective rates of antibiotic combined with intestinal cleansing group and antibiotic pretreatment group were obviously higher than that of non-intestinal preparation group (χ(2)=5.789, P=0.016; χ(2)=10.117, P=0.001). Subgroup analysis showed that in the third month, the effective rate at 4-week after treatment was 60.1% (184/306) in the without intestinal preparation group and 61.5% (115/187) in the with intestinal preparation group, whose difference was not significant (χ(2)=0.091, P=0.763); however, in the sixth month, the effective rate at 4-week after treatment was 51.4% (89/173) in the without intestinal preparation group and 61.2% (161/263) in the with intestinal preparationgroup, whose difference was significant (χ(2)=4.229, P=0.040). Conclusions: FMT treatment is safe and effective. The combination of antibiotics and intestinal cleaning can improve overall efficacy of FMT. For patients who need repeated FMT treatment, the combination of antibiotics and intestinal cleaning program within 3 months has no significant effect on the effective rate, but in the sixth month, combinedpreparation is necessary.
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Chen QY, Yang B, Tian HL, Lin ZL, Zhao D, Ye C, Zhang XY, Qin HL, Li N. [Association between the clinical efficacy of fecal microbiota transplantation in recipients and the choice of donor]. ZHONGHUA WEI CHANG WAI KE ZA ZHI = CHINESE JOURNAL OF GASTROINTESTINAL SURGERY 2020; 23:69-76. [PMID: 32594729 DOI: 10.3760/cma.j.cn.441530-20200417-00222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To examine the association between the clinical efficacy of fecal microbiota transplantation (FMT) in recipients and the choice of donor, and to observe the characteristics of intestinal flora and metabolites among different donors. Methods: A retrospective case-control study was conducted. Donor whose feces was administrated for more than 30 recipients was enrolled. Data of 20 FMT donors and corresponding recipients at Intestinal Microecology Diagnosis and Treatment Center of the Tenth People's Hospital from October 2018 to December 2019 were collected retrospectively. During follow-up, the efficacy of each recipient 8-week after FMT treatment was recorded and analyzed. Based on the efficacy of each donor, the donors were divided into three groups: high efficacy group (effective rate >60%, 10 donors), moderate efficacy group (effective rate 30%-60%, 6 donors) and low efficacy group (effective rate <30%, 4 donors). The structure of the bacterial flora and the content of fecal short-chain fatty acids in each group of donors were detected and compared among groups. Association of the efficacy of each donor group with the morbidity of complications, and association of efficacy of recipients with donors were analyzed. The evaluation indicators of FMT efficacy included objective clinical effectiveness and/or subjective effectiveness. Objective effectiveness indicated clinical cure plus clinical improvement, and subjective effectiveness indicated marked effectiveness plus medium effectiveness through questionnaire during follow-up. Results: A total of 1387 recipients were treated by 20 donors, including 749 cases of chronic constipation, 141 cases of chronic diarrhea, 107 cases of inflammatory bowel disease (IBD), 121 cases of irritable bowel syndrome (IBS), 83 cases of autism, and 186 cases of other diseases, such as radiation bowel injury, intestinal pseudo-obstruction, paralytic intestinal obstruction, functional bloating and allergic diseases. There were 829 cases, 403 cases, and 155 cases in high efficacy group, moderate efficacy group and low efficacy group respectively. Baseline data among 3 groups were not significantly different (all P> 0.05). In comparison of bacterial abundance (operational taxonomic unit, OTU) among different effective donor groups, the high efficacy group was the highest (330.68±57.28), the moderate efficacy group was the second (237.79±41.89), and the low efficacy group was the lowest (160.60±49.61), whose difference was statistically significant (F=16.910, P<0.001). In comparison of bacterial diversity (Shannon index), the high efficacy group and the moderate efficacy group were higher (2.96±0.36 and 2.67±0.54, respectively), and the low efficacy group was lower (2.09±0.55), whose difference was statistically significant (F=5.255, P=0.017). In comparison of butyric acid content among three groups, the high efficacy group had the highest [(59.20±9.00) μmol/g], followed by middle efficacy group [(46.92±9.48) μmol/g], and the low efficacy group had the lowest [(37.23±5.03) μmol/g], whose difference was statistically significant (F=10.383, P=0.001). The differences of acetic acid and propionic acid among three groups were not statistically significant (all P>0.05). A total of 418 cases developed complications (30.1%). Morbidity of complication in low efficacy group, moderate efficacy group and high efficacy group was 40.6% (63/155), 30.0% (121/403) and 28.2% (243/829) respectively, and the difference was statistically significant (χ(2)=9.568, P=0.008). The incidence of diarrhea in low efficacy group, moderate efficacy group and high efficacy group was 7.1% (11/155), 4.0% (16/403) and 2.8% (23/829) respectively, and the difference was statistically significant (χ(2)=7.239, P=0.027). Comparing the incidences of other types of complications, no statistically significant differences were found (all P>0.05). Follow up began 8 weeks after the FMT treatment. The total follow-up rate was 83.6% (1160/1387). The overall effective rate 58.3% (676/1160). Effective rates of various diseases were as follows: chronic constipation 54.3% (328/604), chronic diarrhea 88.5% (115/130), IBD 56.1% (55/98), IBS 55.1% (59/107), autism 61.6% (45/73), and other diseases 50.0% (74/148). Comparing the effective rate of three groups of donors for different diseases, there was no statistically significant difference in chronic diarrhea (P>0.05); there was a positive correlation trend in IBD, IBS and autism, but the differences were not statistically significant (all P>0.05). For chronic constipation and other diseases, high efficacy group had the highest effective rate [65.0% (243/374) and 63.2% (55/87)], followed by moderate efficacy group [49.4% (86/174) and 38.1% (16/42)], and low efficacy group had the lowest [16.1% (9/56) and 15.8% (3/19)], whose differences were significant (all P<0.05). Conclusions: Different donors have different efficacy in different diseases. Chronic constipation, radiation bowel injury, etc. need to choose donors with high efficacy. IBD, IBS and autism may also be related to the effectiveness of donors, while chronic diarrhea is not associated to the donor. The efficiency of the donor is negatively correlated to the morbidity of complications. The abundance and diversity of intestinal flora and the content of butyric acid may affect the efficacy of the donor.
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Hao JQ, Nong JY, Zhao D, Li HY, Su D, Zhou LJ, Dong YJ, Zhang C, Che NY, Zhang SC, Lin JZ, Yang JB, Zhang HT, Wang JH. The significance of Siglec-15 expression in resectable non-small cell lung cancer. Neoplasma 2020; 67:1214-1222. [PMID: 32749846 DOI: 10.4149/neo_2020_200220n161] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 04/29/2020] [Indexed: 11/08/2022]
Abstract
Siglec-15 (S15) is another important mechanism of tumor immune escape besides the PD-L1/PD-1 pathway and represents a new kind of immune checkpoint inhibitor. However, the associations of tumor Siglec-15 expression with clinicopathological characteristics and outcomes of non-small cell lung cancer (NSCLC), and tumor-infiltrating lymphocytes (TILs) in a tumor microenvironment (TME) have so far been unclear. A total of 324 NSCLC surgical samples on tumor microarray were used in this study for investigating the association of S15 expression with clinicopathological characteristics and overall survival (OS) as well as correlation with TILs using multiplex immunofluorescence staining and PD-L1. Results showed that the expression of S15 in adenocarcinoma was significantly higher than that in squamous cell carcinoma. S15 expression was positively correlated with CD8+ T cell density in the stroma. The expression rate of PD-L1 in lung squamous cell carcinoma was higher than that in lung adenocarcinoma. S15 expression was not associated with the prognosis of early NSCLC. The pathological mechanism of the co-expression of S15 and PD-L1 in resectable NSCLC remains to be further studied.
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Zhao D, Qin HL, Li N. [Integrated strategy based on microecological therapy in the treatment of inflammatory bowel disease]. ZHONGHUA WEI CHANG WAI KE ZA ZHI = CHINESE JOURNAL OF GASTROINTESTINAL SURGERY 2020; 23:38-44. [PMID: 32594724 DOI: 10.3760/cma.j.cn.441530-20200414-00205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Inflammatory bowel disease (IBD) is a group of chronic, recurrent, and inflammatory intestinal diseases. At present, it is believed that the destruction of intestinal homeostasis may be the cause of the onset and progression of IBD. Under normal circumstances, the maintenance of intestinal homeostasis depends on the balance among the intestinal microbes, the intestinal mucosal barrier, and the immune system. Accordingly, the treatment strategy for IBD must take into account micro-ecological reconstruction, immune regulation and intestinal barrier function recovery. Because different patients have different responses to incentives, different treatments, or those at different stages of the disease course show different disease behaviors, multidisciplinary collaboration seems quite necessary. This article aims to introduce a five-in-one integrated treatment strategy, including microecological treatment, immunotherapy, enteral nutrition, interventional therapy, and surgical treatment.
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Mao S, Li D, Zhao D, Gao Y, Flores F, Bakhsheshi H, Chharawalla H, Cornelio D, Das N, Kaur Y, Trad J, Budoff M. Quantitative Coronary Calcium Burden Using Ct Scan With “As Low As Reasonably Achievable” Radiation Dose And Maintaining Acceptable Image Quality. J Cardiovasc Comput Tomogr 2020. [DOI: 10.1016/j.jcct.2020.06.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Abdulkadir M, Jatto D, Abdulkareem L, Zhao D. Pressure drop, void fraction and flow pattern of vertical air–silicone oil flows using differential pressure transducer and advanced instrumentation. Chem Eng Res Des 2020. [DOI: 10.1016/j.cherd.2020.04.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mao S, Li D, Zhao D, Gao Y, Flores F, Chharawalla H, Bakhsheshi H, Kaur Y, Kim H, Liang N, Sandoval J, Cornelio D, Budoff M. Cardiac Ct Can Be Used To Diagnose And Monitor The Thoracic Vertebral Fractures, Osteoporosis And Coronary Artery Atherosclerosis In Patients With Rheumatoid Arthritis. J Cardiovasc Comput Tomogr 2020. [DOI: 10.1016/j.jcct.2020.06.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Sun JY, Gao S, Zhao D, Wang M, Zhang Q, Han XY, Liu J. [Trends regarding the 30-day readmission rates in patients discharged for acute myocardial infarction in Beijing]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2020; 41:866-871. [PMID: 32564551 DOI: 10.3760/cma.j.cn112338-20190624-00460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To examine the characteristics and trends regarding the 30-day coronary heart disease (CHD) readmission rates in patients discharged for acute myocardial infarction (AMI) in Beijing, during 2007-2012. Methods: Patients hospitalized for AMI in Beijing from 1 January 2007 to 31 December 2012 were identified from "The Cardiovascular Disease Surveillance System in Beijing". In total, 64 355 patients aged 25 years and over with permanent Beijing residency survived and discharged for AMI in Beijing during the above-said six years. After excluding duplicate and validation for the completeness and accuracy of the records, clinical features and 30-day CHD readmission rates for those AMI discharged patients were analyzed. Trends regarding the 30-day CHD readmission rates in patients discharged for AMI were analyzed by Poisson regression models. Results: The overall age-standardized average 30-day CHD readmission rate for AMI discharged patients was 7.7% in patients aged 25 years and over in Beijing. During the six years under study, an increasing trend was observed on the 30-day CHD readmission rates for AMI discharged patients after adjusting the age and gender (P<0.001). The age-standardized 30-day CHD readmission rates for AMI discharged patients increased by 21.3% in the past six years, from 7.0% in 2007 to 8.5% in 2012. The increase of 30-day CHD readmission rates was noted in both men and women during the six years, whereas it appeared higher in women (8.4%) than in men (7.4%), after adjusting for age. Among the AMI discharged patients, the 30-day CHD readmission rates were higher in patients with non-ST-segment elevation myocardial infarction (NSTEMI) than those with ST-segment elevation myocardial infarction patients (P<0.01), and higher in discharged patients with multiple comorbidities than those without multiple comorbidities (P<0.01). Conclusions: An increasing trend in the 30-day CHD readmission rates for AMI discharged patients was observed during 2007-2012 among Beijing residents aged 25 years and over. It called for an urgent need in improving the secondary prevention of AMI discharged patients, particularly in women, with NSTEMI and those with multiple comorbidities. Findings from these unselected "real-world" data in Beijing may help to guide the management of AMI in the country as well as in other developing countries.
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Zeng X, Zhao D, Radominski S, Keiserman M, Lee CK, Meerwein S, Enejosa J, Sui Y, Mohamed ME, Park W. SAT0160 EFFICACY AND SAFETY OF UPADACITINIB IN PATIENTS FROM CHINA, BRAZIL, AND SOUTH KOREA WITH RHEUMATOID ARTHRITIS WHO HAVE HAD INADEQUATE RESPONSE TO CONVENTIONAL SYNTHETIC DISEASE-MODIFYING ANTIRHEUMATIC DRUGS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.1521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Upadacitinib (UPA), an oral, selective JAK-1 inhibitor was effective in global ph 3 trials in rheumatoid arthritis (RA) patients with inadequate response (IR)/intolerance to csDMARDs and bDMARDs.Objectives:This Phase 3, randomized, double-blind, placebo (PBO)-controlled study assessed the efficacy and safety of UPA in combination with csDMARDs in csDMARD-IR patients with RA from China, Brazil, and South Korea.Methods:Patients were randomized 1:1 to receive UPA 15 mg once daily (QD) or PBO in combination with csDMARDs. The primary endpoint was ACR20 response at Week 12, using non-responder imputation.Results:338 patients were randomized, and 310 (91.7%) completed Week 12. At Week 12, statistically significantly more patients receiving UPA vs PBO achieved the primary endpoint of ACR20 (71.6% vs 31.4%, p<0.001). UPA also demonstrated statistically significant improvements in all ranked secondary endpoints vs PBO at Week 12 (Table 1), including mean change in DAS28(CRP), HAQ-DI, and SF-36 PCS, and patients achieving DAS28(CRP) ≤3.2, DAS28(CRP) <2.6, and CDAI ≤10. Greater responses were also seen with UPA vs PBO for other key secondary endpoints including ACR50 and ACR70. Onset of UPA action was rapid with more patients on UPA achieving ACR20 by Week 1 (25.4% vs 5.9%, p<0.001). The frequency of AEs (61.5% vs 49.1%) and serious AEs (7.1% vs 3.0%) was higher with UPA vs PBO. The frequency of AEs of special interest was generally similar between UPA and PBO, with the exception of herpes zoster (1.8% vs 0.6%), hepatic disorders (9.5% vs 7.1%), neutropenia (3.0% vs 0%), and elevated creatine phosphokinase (1.8% vs 0.6%), which were higher with UPA. One case of breast cancer (on Day 1 of study) and one VTE (pulmonary embolism and deep vein thrombosis in a patient with history of deep vein thrombosis) were reported with UPA treatment.Table 1.Efficacy endpoints at Week 12EndpointaUPA 15 mg QD (n=169)PBO(n=169)Primary endpointACR20, %71.6***31.4Secondary endpointsΔ DAS28(CRP)-2.56***-0.95Δ HAQ-DI-0.62***-0.18Δ SF-36 PCS8.93c***3.36dDAS28(CRP) ≤3.2, %46.2***13.6DAS28(CRP) <2.6, %29.6***5.3CDAI ≤10, %35.5***11.2ACR50, %b40.8***8.3ACR70, %b21.3***3.6ACR20 at Week 1, %b25.4***5.9***p<0.001 vs PBOaNRI for binary endpoints; ANCOVA with multiple imputation for DAS28(CRP) and HAQ-DI; mixed model repeated measures for other continuous endpointsbUnranked secondary endpoint.cn=143.dn=149Conclusion:Efficacy of UPA was demonstrated in this csDMARD-IR population from China, Brazil, and South Korea. The safety of UPA was comparable with the global Phase 3 program.Disclosure of Interests: :Xiaofeng Zeng Consultant of: MSD Pharmaceuticals, Dongbao Zhao: None declared, Sebastiao Radominski: None declared, MAURO KEISERMAN Speakers bureau: Pfizer, Abbott, Actelion, AstraZeneca, Amgen, Roche, Bristol Myers Squibb, and Janssen and has received clinical trial honoraria from Pfizer, Amgen, AstraZeneca, Anthera Pharmaceuticals, Bristol-Myers Squibb, Biogen Idec Inc, Celltrion Inc., Eli Lilly, Human Genome Sciences, Novartis, Roche, Sanofi, UCB Inc., Chang-Keun Lee: None declared, Sebastian Meerwein Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Jeffrey Enejosa Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Yunxia Sui Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Mohamed-Eslam Mohamed Shareholder of: AbbVie Inc., Employee of: AbbVie Inc., Won Park: None declared
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Hu GL, Liu J, Liu J, Hao YC, Yang N, Zhou MG, Zeng YY, Zhao D. [Association between smoking and the severity of coronary lesions among young and middle-aged female patients with acute coronary syndrome]. ZHONGHUA XIN XUE GUAN BING ZA ZHI 2020; 48:378-385. [PMID: 32450654 DOI: 10.3760/cma.j.cn112148-20191115-00702] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the association between smoking and the severity of coronary lesions among young and middle-aged female patients with acute coronary syndrome (ACS). Methods: Data of this study were derived from the Improving Care for Cardiovascular Disease in China (CCC)-ACS project, a collaborative study of the Chinese Society of Cardiology and the American Heart Association. Since 2014, the CCC-ACS project consecutively enrolled inpatients with ACS, systematically collected their clinical data and evaluated medical quality of these patients from 158 tertiary hospitals and 82 secondary hospitals across China. This study enrolled female patients less than 60 years old with initial ACS, who received coronary angiography in CCC-ACS project. Patients were divided into two groups according to smoking status. A multivariate logistic regression analysis was used to analyze the association between smoking and the severity of coronary lesions among young and middle-aged female patients with ACS. Results: A total of 2 863 female patients younger than 60 years old with initial ACS, who received coronary angiography, were enrolled. Among them, 12% (340 cases) was smokers. Proportion of patients younger than 45 years old was higher (13.2% (45/340) vs. 8.5% (215/2 523), P<0.01) and prevalence of hypertension (59.4% (202/340) vs. 66.7% (1 683/2 523), P<0.01) and diabetes (39.4% (134/340) vs. 44.2% (1 116/2 523), P=0.09) was lower in smoker group than in non-smoker group. However, prevalence of ST-elevation myocardial infarction (66.8% (227/340) vs. 53.7% (1 354/2 523), P<0.01), coronary multi-vessel lesions (39.1% (133/340) vs. 32.6% (822/2 523), P<0.01) and severe stenosis in either single-vessel (56.2% (109/194) vs. 46.1% (706/1 530), P<0.01) or multi-vessel (63.2% (84/133) vs. 58.2% (478/822), P=0.29) was significantly higher in smoker group than in non-smoker group. Multivariate logistic regression analyses showed that after adjusting for age, hypertension, diabetes, elevated low-density lipoprotein cholesterol, lower high-density lipoprotein cholesterol, elevated triglyceride, renal insufficiency, family history of coronary heart disease and types of ACS, smokers faced a higher risk of coronary multi-vessel lesions, coronary multi-vessel severe lesions and coronary severe lesions with the odds ratios and 95% confidence interval of 1.41 (1.11-1.79), 1.40 (1.10-1.78) and 1.78 (1.11-2.87), compared with non-smokers. Conclusions: Smoking is significantly associated with an increased risk of extensive and severe coronary lesions among young and middle-aged female patients with ACS. This study provides crucial evidence for further understanding the harms of smoking and the need to strengthen the tobacco control education and smoking cessation guidance for young and middle-aged women.
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Tao S, Zhao Z, Zhang X, Guan X, Wei J, Yuan B, He S, Zhao D, Zhang J, Liu Q, Ding Y. The role of macrophages during breast cancer development and response to chemotherapy. Clin Transl Oncol 2020; 22:1938-1951. [PMID: 32279178 DOI: 10.1007/s12094-020-02348-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 03/21/2020] [Indexed: 12/14/2022]
Abstract
Macrophages play an important role in the immune system as a key host defense against pathogens. Non-polarized macrophages can differentiate into pro-inflammatory classical pathway-activated macrophages or anti-inflammatory alternative pathway-activated macrophages, both of which play central roles in breast cancer growth and progression in a process called polarization of macrophages. Classical pathway-activated and alternative pathway-activated macrophages can transform into each other and their transformational properties and orientation are determined by cytokines in the tumor microenvironment. Tumor-associated macrophages display many functions, such as tissue reforming, participating in inflammation and tumor growth in breast cancer progression. Some cytokines, such as interleukins and transcriptional activators, reside in the tumor microenvironment and influence tumor-associated macrophages. Chemotherapy is a common treatment for breast cancer and macrophages play an important role in mammary tumor cell migration, cancer invasion, and angiogenesis. This review summarizes the activities of tumor-associated macrophages in the mammary tumor, chemotherapeutic processes and some potential strategies for breast cancer therapy.
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Cao Z, Hou XN, An ZY, Zhao D. Forensic Significance of Skin Injury and Fracture Caused by Child Abuse. FA YI XUE ZA ZHI 2020; 36:104-108. [PMID: 32250088 DOI: 10.12116/j.issn.1004-5619.2020.01.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Indexed: 11/30/2022]
Abstract
Abstract In recent years, cases of child abuse that result in injuries and death have occurred from time to time in China, and there may be more undetected child abuse cases. However, many pediatricians and forensic doctors lack professional knowledge and formal training in detecting child abuse, which leads to the missed diagnosis, misdiagnosis and misidentification of many cases of child abuse. This paper reviews a large number of relevant domestic and foreign literatures, combined with practical work experience and China's national conditions, preliminarily summarizes the main points of clinical diagnosis and forensic identification of child abuse cases, in order to provide some help for early detection, accurate identification of child abuse cases and timely and effective treatment and protection for abused children.
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Zhao D, Tong BS, Duan ML. [ In vivo dynamic changes of inner ear guinea pigs with 9.4 T esla MRI]. ZHONGHUA ER BI YAN HOU TOU JING WAI KE ZA ZHI = CHINESE JOURNAL OF OTORHINOLARYNGOLOGY HEAD AND NECK SURGERY 2020; 55:378-383. [PMID: 32306636 DOI: 10.3760/cma.j.cn115330-20190727-00467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the imaging characteristics of guinea pig cochlear structure using 9.4 Tesla magnetic resonance imaging system at different time intervals of contrast agent distribution in the inner ear. Methods: Form May 2015 to October 2015, five albino guinea pigs were injected with Gd-DTPA via the right internal jugular vein (3 ml/kg). Inner ears were scanned with 9.4T MRI. At the 10 th, 30 th, 60 th, 90 th and 120 th minutes post-Gd-DTPA, we took inner ear images to detect changes of endolymph and perilymph. Using Image J software, we acquired MRI gray value through the first, second, third and apical turn of cochlear at different time points. Analysis by one-way ANOVA was taken to analyze the resultsusing GraphPad Prism 5 software. Results: Only outlines of the cochlea and vestibule were visible before Gd-DTPA injection and there was no clear distinction between endolymph and perilymph. Cochlea vestibule on T1 weighted images was enhanced at the 10 th (the first turn of cochlear 8 203±819) after injection, and then imaging of each part of cochlea, including cochlea, vestibule, semicircular canal and even endolymph and perilymph, can be distinguished clearly, because they enhanced gradually at the 30 th(10 489±819), 60 th(13 965±591), and at 90 th(18 050±1 250) after injection. While at the 120 th(18 952±1 185) minute, imaging was not significantly enhanced than at the 90 th minute. The speed and volume of contrast agent spreaded into the various parts of the inner ear were different, and changes with distribution of contrast agent in each part of the inner ear showed a rising process in a certain period of time. The distribution of contrast agent in the inner ear had concentration gradient via basal turn higher and apical turn lower. Conclusions: Endolymph of inner ear can be distinguished from the perilymph using a 9.4T MRI system with Gd-DTPA, and the best observation timer was 90 minutes after intravenous injection of contrast agent. In summary, our study provides the clearly visualized imaging evidence of the changes of the lymphatic fluid, which may be useful for diagnosis of inner ear diseases such as Meniere's Disease.
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Xu YB, Ouyang Y, Zhao D. Curative effects of vancomycin and cefotaxime combined with gamma globulin respectively in neonatal septicemia and their influences on PCT, CRP and hs-CRP. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2020; 24:4486-4494. [PMID: 32373986 DOI: 10.26355/eurrev_202004_21031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To explore the curative effects of vancomycin and cefotaxime combined with gamma globulin respectively in neonatal septicemia and their influences on PCT, CRP, and hs-CRP, so as to provide references for clinical treatment. PATIENTS AND METHODS 181 patients with neonatal septicemia admitted to Huangshi Maternity and Child Health Hospital from April 2012 to August 2014 were selected as the study subjects. Patients treated with vancomycin combined with gamma globulin were selected as group A (96 cases) and those treated with cefotaxime combined with gamma globulin were selected as group B (85 cases). The improvement time of clinical symptoms (milk rejection, nervous system symptoms, body temperature), hospital stays, mortality, medicine curative effects, adverse reactions, complications, and levels of serum CRP, PCT, and hs-CRP of patients before and after treatment were compared between the two groups. RESULTS The improvement time of clinical symptoms like body temperature, milk rejection, and neurological symptoms, as well as hospital stays in group A were lower than those in group B (p<0.05); the total effective rate of medicine curative effects in group B was better than that in group A (p<0.05); there was no significant difference in levels of serum CRP, PCT, and hs-CRP between the two groups before treatment (p>0.05); after treatment, levels of serum CRP, PCT, and hs-CRP in both groups decreased significantly, and levels of serum CRP, PCT, and hs-CRP in group B decreased more significantly than those in group A (p<0.05). CONCLUSIONS Cefotaxime combined with gamma globulin in the treatment of patients with neonatal septicemia has short improvement time in clinical symptoms, high total effective rate of drugs, low mortality, fewer adverse reactions and complications, and can significantly reduce levels of serum CRP, PCT, and hs-CRP, which is worthy of further promotion and application in clinical practice.
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Ding C, Korotkova O, Zhao D, Li D, Zhao Z, Pan L. Propagation of temporal coherence gratings in dispersive medium with a chirper. OPTICS EXPRESS 2020; 28:7463-7474. [PMID: 32225973 DOI: 10.1364/oe.386598] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 02/17/2020] [Indexed: 06/10/2023]
Abstract
In this paper, the propagation of Temporal Coherence Grating (TCG) pulse trains in a dispersive medium with a chirp is investigated for the first time. The two-time mutual coherence function of the TCG pulse trains propagating through extended dispersive medium specified by temporal ABCD matrix is derived and the evolution of their mean intensity and temporal degree of coherence (DOC) is explored. It is shown that the distribution of the mean intensity can be modulated freely by the number of grating lobes N, grating constant a, pulse duration T0, power distributions vn, group-velocity dispersion coefficient β2 and the medium chirper s. Upon dispersive-medium propagation, the single pulse splits into N+1 subpulses with the same or different peak intensities which depend on power distributions vn. What's more, during the propagation the pulse self-focusing occurs being the chirp-induced non-linear phenomenon. And the distribution of temporal DOC will degenerate into Gaussian form from initial periodic coherence distribution with increasing propagation distance z or adjusting incident pulse parameters and medium dispersion. The physical explanation and numerical illustrations relating to the pulse behavior are included.
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