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Thomson CG, Aicher TD, Cheng W, Du H, Dudgeon C, Li AH, Li B, Lightcap E, Luo D, Mulvihill M, Pan P, Rahemtulla BF, Rigby AC, Sherborne B, Sood S, Surguladze D, Talbot EPA, Tameire F, Taylor S, Wang Y, Wojnarowicz P, Xiao F, Ramurthy S. Discovery of HC-7366: An Orally Bioavailable and Efficacious GCN2 Kinase Activator. J Med Chem 2024; 67:5259-5271. [PMID: 38530741 DOI: 10.1021/acs.jmedchem.3c02384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
A series of activators of GCN2 (general control nonderepressible 2) kinase have been developed, leading to HC-7366, which has entered the clinic as an antitumor therapy. Optimization resulted in improved permeability compared to that of the original indazole hinge binding scaffold, while maintaining potency at GCN2 and selectivity over PERK (protein kinase RNA-like endoplasmic reticulum kinase). The improved ADME properties of this series led to robust in vivo compound exposure in both rats and mice, allowing HC-7366 to be dosed in xenograft models, demonstrating that activation of the GCN2 pathway by this compound leads to tumor growth inhibition.
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Affiliation(s)
- Christopher G Thomson
- Integrated Drug Discovery Services, Pharmaron UK Ltd., West Hill Innovation Park, Hertford Road, Hoddesdon, Hertfordshire EN11 9FH, U.K
| | - Thomas D Aicher
- Department of Chemistry, Lycera Corporation, Ann Arbor, Michigan 48103, United States
| | - Weiwei Cheng
- Pharmaron Beijing, Company Ltd., No. 6, TaiHe Road, BDA, Beijing 100176, China
| | - Hongwen Du
- Pharmaron Beijing, Company Ltd., No. 6, TaiHe Road, BDA, Beijing 100176, China
| | - Crissy Dudgeon
- HiberCell Inc., 619 West 54th Street, New York, New York 10019, United States
| | - An-Hu Li
- HiberCell Inc., 619 West 54th Street, New York, New York 10019, United States
| | - Baozhong Li
- Pharmaron Beijing, Company Ltd., No. 6, TaiHe Road, BDA, Beijing 100176, China
| | - Eric Lightcap
- HiberCell Inc., 619 West 54th Street, New York, New York 10019, United States
| | - Diheng Luo
- Pharmaron Xi'an, Company Ltd., No. 1, 12th Fengcheng Road, Xi'an 710018, China
| | - Mark Mulvihill
- HiberCell Inc., 619 West 54th Street, New York, New York 10019, United States
| | - Pengwei Pan
- Pharmaron Beijing, Company Ltd., No. 6, TaiHe Road, BDA, Beijing 100176, China
| | - Benjamin F Rahemtulla
- Integrated Drug Discovery Services, Pharmaron UK Ltd., West Hill Innovation Park, Hertford Road, Hoddesdon, Hertfordshire EN11 9FH, U.K
| | - Alan C Rigby
- HiberCell Inc., 619 West 54th Street, New York, New York 10019, United States
| | - Bradley Sherborne
- Integrated Drug Discovery Services, Pharmaron UK Ltd., West Hill Innovation Park, Hertford Road, Hoddesdon, Hertfordshire EN11 9FH, U.K
| | - Sanjeev Sood
- Preformulation and Preclinical Services, Pharmaron UK Ltd., West Hill Innovation Park, Hertford Road, Hoddesdon, Hertfordshire EN11 9FH, U.K
| | - David Surguladze
- HiberCell Inc., 619 West 54th Street, New York, New York 10019, United States
| | - Eric P A Talbot
- Integrated Drug Discovery Services, Pharmaron UK Ltd., West Hill Innovation Park, Hertford Road, Hoddesdon, Hertfordshire EN11 9FH, U.K
| | - Feven Tameire
- HiberCell Inc., 619 West 54th Street, New York, New York 10019, United States
| | - Simon Taylor
- Integrated Drug Discovery Services, Pharmaron UK Ltd., West Hill Innovation Park, Hertford Road, Hoddesdon, Hertfordshire EN11 9FH, U.K
| | - Yi Wang
- Pharmaron Beijing, Company Ltd., No. 6, TaiHe Road, BDA, Beijing 100176, China
| | - Paulina Wojnarowicz
- HiberCell Inc., 619 West 54th Street, New York, New York 10019, United States
| | - Fenfen Xiao
- Pharmaron Xi'an, Company Ltd., No. 1, 12th Fengcheng Road, Xi'an 710018, China
| | - Savithri Ramurthy
- HiberCell Inc., 619 West 54th Street, New York, New York 10019, United States
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Pan P, Wang JL, Zhai WH, Ma QL, Yang DL, Feng SZ, Han MZ, Pang AM, Jiang EL. [Clinical analysis of 14 patients aged ≤ 50 years with high-risk multiple myeloma treated with allogeneic hematopoietic stem cell transplantation]. Zhonghua Xue Ye Xue Za Zhi 2024; 45:28-34. [PMID: 38527835 DOI: 10.3760/cma.j.cn121090-20230928-00148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Objective: To evaluate the efficacy of allogeneic hematopoietic stem cell transplantation (allo-HSCT) in young patients with high-risk multiple myeloma (HRMM) and analyzed the factors affecting patient prognosis. Methods: In this retrospective study, we analyzed the clinical data of 14 patients with HRMM with cytogenetic abnormalities or high-risk biological factors who underwent allo-HSCT at the Hematopoietic Stem Cell Transplantation Center of the Institute of Hematology & Blood Diseases Hospital between November 2016 and November 2022. Results: There were seven males and seven females included in the study, with a median age of 39.5 (31-50) years at the time of allo-HSCT. The median number of treatment lines before transplantation was 2 (1-6) . Before allo-HSCT, 42.9% (6/14) of the patients did not achieve complete remission, while 35.7% (5/14) of the patients achieved measurable residual disease positivity. After transplantation, all patients were evaluated for their treatment response, and the overall response rate was 100% (14/14) . All 14 patients successfully underwent allo-HSCT, with median engraftment times for neutrophils and platelets of 11 (10-14) days and 13 (9-103) days, respectively. Acute grade Ⅱ-Ⅳ graft-versus-host disease (GVHD) occurred in five patients (35.7%) , and two patients (14.3%) developed moderate-to-severe chronic GVHD. The median follow-up time after allo-HSCT was 18.93 (4.10-72.53) months, with an expected 2-year transplant-related mortality rate of 7.1% (95% CI 0%-21.1%) and an expected 2-year overall survival rate of 92.9% (95% CI 80.3%-100.0%) . Moreover, the expected 1-year and 2-year progression-free survival rates were 92.9% (95% CI 80.3%-100.0%) and 66.0% (95% CI 39.4%-100.0%) , respectively, and the 2-year cumulative incidence of relapse was 28.9% (95% CI 0%-56.7%) . Upfront allo-HSCT following complete remission after induced therapy and the presence of chronic GVHD might be favorable prognostic factors. Conclusion: allo-HSCT is an effective treatment for improving the prognosis of young patients with HRMM.
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Affiliation(s)
- P Pan
- State Key Laboratory of Experimental Hematlogy, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Insitute of Hematology & Blood Disarses Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China Tianjin Institutes of Health Science, Tianjin 301600, China
| | - J L Wang
- State Key Laboratory of Experimental Hematlogy, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Insitute of Hematology & Blood Disarses Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China Tianjin Institutes of Health Science, Tianjin 301600, China
| | - W H Zhai
- State Key Laboratory of Experimental Hematlogy, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Insitute of Hematology & Blood Disarses Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China Tianjin Institutes of Health Science, Tianjin 301600, China
| | - Q L Ma
- State Key Laboratory of Experimental Hematlogy, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Insitute of Hematology & Blood Disarses Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China Tianjin Institutes of Health Science, Tianjin 301600, China
| | - D L Yang
- State Key Laboratory of Experimental Hematlogy, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Insitute of Hematology & Blood Disarses Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China Tianjin Institutes of Health Science, Tianjin 301600, China
| | - S Z Feng
- State Key Laboratory of Experimental Hematlogy, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Insitute of Hematology & Blood Disarses Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China Tianjin Institutes of Health Science, Tianjin 301600, China
| | - M Z Han
- State Key Laboratory of Experimental Hematlogy, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Insitute of Hematology & Blood Disarses Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China Tianjin Institutes of Health Science, Tianjin 301600, China
| | - A M Pang
- State Key Laboratory of Experimental Hematlogy, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Insitute of Hematology & Blood Disarses Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China Tianjin Institutes of Health Science, Tianjin 301600, China
| | - E L Jiang
- State Key Laboratory of Experimental Hematlogy, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Insitute of Hematology & Blood Disarses Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China Tianjin Institutes of Health Science, Tianjin 301600, China
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Pan P, Cheng HB, Xie LX. [Intelligent intensive care unit design:will it be accessible in the future]. Zhonghua Jie He He Hu Xi Za Zhi 2023; 46:851-853. [PMID: 37670639 DOI: 10.3760/cma.j.cn112147-20230531-00275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
ICU is an essential location for critically ill patients to receive comprehensive diagnosis and treatment. However, the high intensity of ICU clinical work, the difficulty of diagnosis and treatment, and the poor humanistic environment require us to accelerate the pace of ICU reform. Therefore, the use of advanced technology to create an intelligent ICU department is imperative. The modern ICU is rich in electronic data and can collect a large amount of patient data during routine care, making it an ideal place to deploy intelligent digital platforms. The vast amounts of data generated by monitoring systems and electronic medical records provide fertile ground for the development of more accurate predictive models, better Clinical Decision Support System and more personalized diagnosis and treatment. At the same time, a well-designed and well-arranged ICU department will greatly enhance the patient's sense of occupancy, as well as increase the professional pride and sense of belonging. Therefore, the establishment of an intelligent ICU department is the only way for ICU to enter the fast lane of development, which will also have a profound impact on the development of ICU.
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Affiliation(s)
- P Pan
- College of Pulmonary and Critical Care Medicine, 8th Medical Center, Chinese PLA General Hospital, 100082 Beijing, China
| | - H B Cheng
- Jiangsu Future Network Group Co., Ltd., Nanjing 211111, China
| | - L X Xie
- College of Pulmonary and Critical Care Medicine, 8th Medical Center, Chinese PLA General Hospital, 100082 Beijing, China
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Rodriguez J, Martinez G, Mahase S, Roytman M, Haghdel A, Kim S, Madera G, Magge R, Pan P, Ramakrishna R, Schwartz TH, Pannullo SC, Osborne JR, Lin E, Knisely JPS, Sanelli PC, Ivanidze J. Cost-Effectiveness Analysis of 68Ga-DOTATATE PET/MRI in Radiotherapy Planning in Patients with Intermediate-Risk Meningioma. AJNR Am J Neuroradiol 2023; 44:783-791. [PMID: 37290818 PMCID: PMC10337622 DOI: 10.3174/ajnr.a7901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 05/07/2023] [Indexed: 06/10/2023]
Abstract
BACKGROUND AND PURPOSE While contrast-enhanced MR imaging is the criterion standard in meningioma diagnosis and treatment response assessment, gallium 68Ga-DOTATATE PET/MR imaging has increasingly demonstrated utility in meningioma diagnosis and management. Integrating 68Ga-DOTATATE PET/MR imaging in postsurgical radiation planning reduces the planning target volume and organ-at-risk dose. However, 68Ga-DOTATATE PET/MR imaging is not widely implemented in clinical practice due to higher perceived costs. Our study analyzes the cost-effectiveness of 68Ga-DOTATATE PET/MR imaging for postresection radiation therapy planning in patients with intermediate-risk meningioma. MATERIALS AND METHODS We developed a decision-analytical model based on both recommended guidelines on meningioma management and our institutional experience. Markov models were implemented to estimate quality-adjusted life-years (QALY). Cost-effectiveness analyses with willingness-to-pay thresholds of $50,000/QALY and $100,000/QALY were performed from a societal perspective. Sensitivity analyses were conducted to validate the results. Model input values were based on published literature. RESULTS The cost-effectiveness results demonstrated that 68Ga-DOTATATE PET/MR imaging yields higher QALY (5.47 versus 5.05) at a higher cost ($404,260 versus $395,535) compared with MR imaging alone. The incremental cost-effectiveness ratio analysis determined that 68Ga-DOTATATE PET/MR imaging is cost-effective at a willingness to pay of $50,000/QALY and $100,000/QALY. Furthermore, sensitivity analyses showed that 68Ga-DOTATATE PET/MR imaging is cost-effective at $50,000/QALY ($100,000/QALY) for specificity and sensitivity values above 76% (58%) and 53% (44%), respectively. CONCLUSIONS 68Ga-DOTATATE PET/MR imaging as an adjunct imaging technique is cost-effective in postoperative treatment planning in patients with meningiomas. Most important, the model results show that the sensitivity and specificity cost-effective thresholds of 68Ga-DOTATATE PET/MR imaging could be attained in clinical practice.
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Affiliation(s)
- J Rodriguez
- From the Department of Radiology (J.R., M.R., A.H., S.K., G. Madera, J.R.O., E.L., J.I.)
| | - G Martinez
- Siemens Healthineers (G. Martinez), Malvern, Pennsylvania
- Imaging Clinical Effectiveness and Outcomes Research Program (G. Martinez, P.C.S.), Health System Science, Feinstein Institutes for Medical Research, Manhasset, New York
| | - S Mahase
- Department of Radiation Oncology (S.M.), Penn State Health, Mechanicsburg, Pennsylvania
| | - M Roytman
- From the Department of Radiology (J.R., M.R., A.H., S.K., G. Madera, J.R.O., E.L., J.I.)
| | - A Haghdel
- From the Department of Radiology (J.R., M.R., A.H., S.K., G. Madera, J.R.O., E.L., J.I.)
| | - S Kim
- From the Department of Radiology (J.R., M.R., A.H., S.K., G. Madera, J.R.O., E.L., J.I.)
| | - G Madera
- From the Department of Radiology (J.R., M.R., A.H., S.K., G. Madera, J.R.O., E.L., J.I.)
| | | | - P Pan
- Department of Neurology (P.P.), Columbia University Medical Center, New York, New York
| | - R Ramakrishna
- Department of Neurological Surgery (R.R., T.H.S., S.C.P.)
| | - T H Schwartz
- Department of Neurological Surgery (R.R., T.H.S., S.C.P.)
| | - S C Pannullo
- Department of Neurological Surgery (R.R., T.H.S., S.C.P.)
- Meinig School of Biomedical Engineering (S.C.P.), Cornell University, Ithaca, New York
| | - J R Osborne
- From the Department of Radiology (J.R., M.R., A.H., S.K., G. Madera, J.R.O., E.L., J.I.)
| | - E Lin
- From the Department of Radiology (J.R., M.R., A.H., S.K., G. Madera, J.R.O., E.L., J.I.)
| | - J P S Knisely
- Department of Radiation Oncology (J.P.S.K.), Weill Cornell Medicine, New York, New York
| | - P C Sanelli
- Department of Radiology (P.C.S.), Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York
- Imaging Clinical Effectiveness and Outcomes Research Program (G. Martinez, P.C.S.), Health System Science, Feinstein Institutes for Medical Research, Manhasset, New York
| | - J Ivanidze
- From the Department of Radiology (J.R., M.R., A.H., S.K., G. Madera, J.R.O., E.L., J.I.)
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Jiang LL, Pan P, Jiao XD, Qiu Q, Li Y, Zhang QX. [Effect of hyperandrogenism on pregnancy outcomes in women with polycystic ovary syndrome undergoing in vitro fertilization/intracytoplasmic sperm injection-embryo transfer]. Zhonghua Yi Xue Za Zhi 2023; 103:1042-1048. [PMID: 37032154 DOI: 10.3760/cma.j.cn112137-20220926-02032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
Abstract
Objective: To explore the effects of hyperandrogenism (HA) on pregnancy outcomes in women with polycystic ovary syndrome (PCOS) undergoing in vitro fertilization/intracytoplasmic sperm injection-embryo transfer (IVF/ICSI-ET). Methods: A retrospective study was conducted on infertile women with PCOS undergoing IVF/ICSI-ET from January 2017 to June 2021 in our center. Patients were divided into HA group and NON-HA group according to the levels of testosterone. Propensity score matching (PSM) was used to balance the influence of female age and IVF/ICSI-ET for patients with gonadotropin-releasing hormone (GnRH)antagonist protocol and GnRH agonist protocol, separately. After the PSM procedure, 191 cases in HA group and 382 cases in NON-HA group, were included. Hormone levels and pregnancy outcomes were compared in the two groups. Results: The female age was comparable in two groups [HA: (29.6±3.7) vs NON-HA: (29.5±3.6), P=0.665]. The basal luteinizing hormone [(10.82±6.73) vs (7.76±5.30) IU/L], testosterone [(3.27±0.97) vs (1.60±0.59) nmol/L], free androgen index (7.13 vs 2.77), anti-mullerian hormone [(11.37±5.74) vs (9.67±4.67) ng/ml], fasting glucose [(5.18±0.49) vs (5.06±0.42) mmol/L], 1h glucose [(9.34±2.42) vs (7.99±2.21) nmol/L], 2 h glucose [(7.66±2.17) vs (6.64±1.84) nmol/L], 2 h insulin [(129.81±145.49) vs (97.51±86.92) mU/L], total cholesterol [(5.35±0.89) vs (4.92±0.92) mmol/L], triglycerides [(1.55±1.28) vs (1.33±0.77) mmol/L], and low density lipoprotein cholesterol levels [(3.38±0.66) vs (3.14±0.71) mmol/L] were significantly higher in HA group, compared with NON-HA group (P<0.05). The initiated gonadotropin dose was higher in HA group than that in NON-HA group [(126.96±33.65) vs (137.60±38.12) U, P=0.001], but moderate-severe ovarian hyperstimulation syndrome (OHSS) rate was similar in two groups (P>0.05). The rates of implantation, clinical pregnancy, miscarriage, and live birth were comparable between the two groups (P>0.05). Also, in the subgroups, the rates of implantation, clinical pregnancy, live birth, and miscarriage were similar in HA group and NON-HA group. Conclusions: The risks of hormonal abnormality and glucose-lipid metabolic disorder were higher in PCOS women with HA, whereas satisfactory pregnancy outcomes could be achieved under proper ovarian stimulation undergoing IVF/ICSI-ET.
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Affiliation(s)
- L L Jiang
- Reproductive Medicine Centre, Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - P Pan
- Reproductive Medicine Centre, Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - X D Jiao
- Reproductive Medicine Centre, Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Q Qiu
- Reproductive Medicine Centre, Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Y Li
- Reproductive Medicine Centre, Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Q X Zhang
- Reproductive Medicine Centre, Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
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Pan P, Xie LX. [Intelligent intensive care unit makes medicine more accessible]. Zhonghua Yi Xue Za Zhi 2023; 103:1-4. [PMID: 36977563 DOI: 10.3760/cma.j.cn112137-20221112-02379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
In the past half century, critical care medicine has made rapid development, and the survival rate of critically ill patients has significantly improved. However, what does not match the rapid development of the specialty is that the infrastructure of intensive care unit (ICU) has gradually appeared weaknesses and the development of humanistic care in ICU has lagged. Accelerating the digital transformation of the medical industry will help to improve the existing difficulties. The application of 5G and artificial intelligence (AI) technology to build an intelligent ICU,focusing on improving patients' comfort by strengthening humanistic care,while solve the shortcomings of the critical care dimension, such as lack of human and material resources, low alarm accuracy, insufficient response speed and ability, to better meet the needs of society and improve the level of medical services and humanistic care for critical diseases. We will review the development of ICU history, clarify the necessity of intelligent ICU construction and the core issues to be solved after the construction of intelligent ICU. Three components of the construction of intelligent ICU will be needed: intelligent space and environment management, intelligent equipment and goods management, intelligent monitoring and diagnosis and treatment. Finally, the people-oriented diagnosis and treatment concept will be realized through intelligent ICU.
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Affiliation(s)
- P Pan
- College of Pulmonary and Critical Care Medicine, 8th Medical Center, Chinese PLA General Hospital, 100710 Beijing, China
| | - L X Xie
- College of Pulmonary and Critical Care Medicine, 8th Medical Center, Chinese PLA General Hospital, 100710 Beijing, China
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Zhao Y, Deng W, Teng J, Xu Y, Pan P, Jin D. Risk factors for 90-day all-cause mortality in post-operative central nervous system infections (PCNSIs): A retrospective study of 99 patients in China. Medicine (Baltimore) 2022; 101:e32418. [PMID: 36596030 PMCID: PMC9803491 DOI: 10.1097/md.0000000000032418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Post-operative central nervous system infections (PCNSIs) are serious complications of craniotomy. Many factors, including patient-related, surgical, and postoperative factors, affect the survival of patients with PCNSIs. Timely and effective implementation of antibiotics targeting pathogenic bacteria is crucial to reduce mortality. Metagenomic next-generation sequencing (mNGS) has been used successfully to detect pathogens associated with infectious diseases. This study was designed to evaluate the factors influencing mortality and to explore the application value of mNGS in patients with PCNSIs. We conducted a retrospective study of patients with PCNSIs in our unit from 1/12/2019 to 28/2/2021. Clinical data, cerebrospinal fluid (CSF) parameters, surgical information, and mNGS results were collected. Follow-up telephone calls were made in June 2021 for 90 days survival after discharge. 99 patients were enrolled, and the overall mortality rate was 36.4% (36/99). Kaplan-Meier survival analysis suggested that the risk factors for poor prognosis included age ≥ 53 years, Glasgow Coma scale (GCS) score ≤ 8, CSF/blood glucose ratio (C/B-Glu) ≤ 0.23, 2 or more operations, mechanical ventilation (MV), and non-mNGS test. MV and poor wound healing were independent risk factors for 90 day mortality according to the multivariate Cox proportional hazards model (OR = 6.136, P = .017, OR = 2.260, P = .035, respectively). Among the enrolled patients, causative pathogens were identified in 37. Gram-negative pathogens were found in 22 (59.5%) patients, and the remaining 15 (40.5%) were Gram-positive pathogens. Univariate analysis showed that white cell count and protein and lactate levels in the CSF of the Gram-negative group were higher than those of the Gram-positive group (P < .05). mNGS and conventional microbiological culture were tested in 34 patients, and the positive detection rate of mNGS was 52.9%, which was significantly higher than that of microbiological culture (52.9% vs 26.5%, χ2 = 4.54, P = .033). The mortality rate of PCNSIs is high, and patients with MV and poor wound healing have a higher mortality risk. Gram-negative pathogens were the predominant pathogens in the patients with PCNSIs. mNGS testing has higher sensitivity and has the potential to reduce the risk of mortality in patients with PCNSIs.
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Affiliation(s)
- Yanan Zhao
- The Neurology Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Wenjing Deng
- The Neurology Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- *Correspondence: Wenjing Deng, The Neurology Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, The Neurology Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, No.1, Jianshe Road, Zhengzhou, Henan, 450052, China (e-mail:)
| | - Junfang Teng
- The Neurology Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yafei Xu
- The Neurology Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Pengwei Pan
- The Neurology Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Di Jin
- The Neurology Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Xu Y, Ji D, Pan P, Li T, Han LX, Zhang Z, Wang Y, Li H, Chen XF, Zheng XJ, Xu L, Liu HX, Meng QH, Wang MZ, Zheng QS. 1175P Pharmacokinetics of ensartinib in advanced solid tumors and anaplastic lymphoma kinase-positive non-small cell lung cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Wang YF, Zhang YY, Tan SX, Pan P, Wei CG, Shen JK. [Establishment and evaluation of a model for predicting ISUP pathological grade≥2 before radical prostatectomy]. Zhonghua Yi Xue Za Zhi 2021; 101:3754-3759. [PMID: 34856705 DOI: 10.3760/cma.j.cn112137-20210824-01915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Based on the 2014 version of the International Association of Urological Pathology (ISUP) pathological classification standards, a prediction model that can predict the pathological classification of ISUP ≥2 in patients with prostate cancer (PCa) before radical prostatectomy (RP) was established and evaluated. Methods: The clinical data of 171 patients who had undergone RP from January 2017 to September 2020 in the Second Affiliated Hospital of Soochow University and obtained postoperative pathological results of all specimens were retrospectively collected. The patients were 46-83 (70±7) years old. For patients with RP ISUP pathologic stage as the gold standard, according to the pathological grading is level 2 or higher is divided into two groups(42 patients with ISUP grade=1 and 129 patients with ISUP grade ≥2). the predictors of ISUP pathology grade ≥2 after RP were screened by logistics regression analysis, predictive models were established and ROC curves were used to evaluate the efficacy of each model in diagnosing RP with pathological grade ≥2, and comparisons were conducted by DeLong test. Results: Compared with patients with ISUP grade=1, patients with ISUP grade≥2 had higher prostate specific antigen (PSA) and prostate specific antigen density (PSAD) (14.21(8.57, 24.98)ng/ml vs 7.98(5.41, 12.54)ng/ml, 0.33(0.20, 0.74)μg.L-1.ml-1 vs 0.16(0.12, 0.24)μg.L-1.ml-1), lower prostate volume (PV) (48.62(34.17,73.99)ml vs 38.94(28.15,54.84)ml)(all P<0.05). Multi-parameter magnetic resonance imaging (mp-MRI) prostate imaging and reporting system (PI-RADS) score, the positive ratio of puncture needles and the pathological grade of puncture ISUP were also significantly different between the two groups (all P<0.05). The combined mp-MRI PI-RADS score (OR=3.337, 95%CI: 1.990-5.593, P<0.001) and puncture ISUP pathological grading (OR=4.041, 95%CI: 1.960-8.334, P<0.001) had the highest diagnostic efficacy for pathological grading ≥2 after RP (AUC=0.916, P<0.05). Conclusion: The combined mp-MRI PI-RADS score and puncture ISUP pathological grading had the highest diagnostic efficacy for pathological grading ≥2 after RP.
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Affiliation(s)
- Y F Wang
- Department of Imaging, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Y Y Zhang
- Department of Imaging, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - S X Tan
- Department of Imaging, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - P Pan
- Department of Imaging, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - C G Wei
- Department of Imaging, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - J K Shen
- Department of Imaging, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
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Spring L, Han H, Hamilton E, Irie H, Santa-Maria C, Reeves J, Pan P, Shan M, Tang Y, Graham J, Hazard S, Ellisen L, Isakoff S. Neoadjuvant niraparib in patients with HER2-negative, BRCA-mutated resectable breast cancer. Breast 2021. [DOI: 10.1016/s0960-9776(21)00183-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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11
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Pan P, Zheng LY, Fang LL, Chen XL, Huang J, Zhang QX, Yang DZ, Xie MQ, Li Y. [Clinical characteristics of 21 infertile women with non-classic 21-hydroxylase deficiency]. Zhonghua Fu Chan Ke Za Zhi 2021; 56:108-113. [PMID: 33631882 DOI: 10.3760/cma.j.cn112141-20200526-00447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical features of infertile women with non-classic 21-hydroxylase deficiency (21-OHD). Methods: The study enrolled 21 infertile women with non-classic 21-OHD in Sun Yat-sen Memorial Hospital of Sun Yat-sen University from January 2009 to December 2018. The clinical presentation, endocrine hormone, glucolipid metabolism and treatment outcome were retrospectively analyzed. The diagnosis of non-classic 21-OHD was comprehensively based on clinical and hormonal characteristics. Results: Among 21 cases, the age was (29.9±2.9) years, the mean age at menarche was (13.6±2.0) years, body mass index was (22.1±2.9) kg/m2, and 38% (8/21) had oligomenorrhea. Hirsutism was diagnosed in 3 cases (14%, 3/21). Clitoromegaly was seen in 14% (3/21) and polycystic ovarian morphology was found in 33% (7/21) of the patients. The mean serum level of basal progesterone was (11.3±21.0) nmol/L, with 48% (10/21) having high basal progesterone level; after therapy by glucocorticoid, the level of progesterone was (1.9±2.0) nmol/L. Serum 17-hydroxyprogesterone concentration was (66.4±123.6) nmol/L; after therapy by glucocorticoid, it was (2.4±1.8) nmol/L. In the study increased testosterone, androstenedione and dehydroepiandrosterone sulfate were present in 62% (13/21), 52% (11/21) and 43% (9/21), respectively; and 52% (11/21) of patients manifested androgen excess and basal progesterone elevation; androgen levels decreased after therapy by glucocorticoid. The pregnancy rate was 76% (16/21). Out of 19 pregnancies, 6/19 ended in spontaneous miscarriages. Conclusions: Infertile women with non-classic 21-OHD are characterized by hyperandrogenism and basal progesterone elevation, whereas gonad axis disorder is not apparent. After no response to conventional therapy, adult infertile women with non-classic 21-OHD could achieve a desirable pregnancy outcome with proper treatment of glucocorticoid.
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Affiliation(s)
- P Pan
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| | - L Y Zheng
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| | - L L Fang
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| | - X L Chen
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| | - J Huang
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| | - Q X Zhang
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| | - D Z Yang
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| | - M Q Xie
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
| | - Y Li
- Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, China
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Jiang T, Song K, Yao Y, Pan P, Jiang Q. Perioperative Allogenic Blood Transfusion Increases the Incidence of Postoperative Deep Vein Thrombosis in Total Knee and Hip Arthroplasty. J Vasc Surg Venous Lymphat Disord 2020. [DOI: 10.1016/j.jvsv.2019.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Spring L, Shan M, Liu M, Hamilton E, Santa-Maria C, Irie H, Isakoff S, Reeves J, Ellisen L, Liem A, Naraine AM, Nangia J, Page D, Pan P, Sun K, Graham J, Han H. Clinical confirmation of higher exposure to niraparib in tumour vs plasma in patients with breast cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz240.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Shi G, Lv C, Yang Z, Qin T, Sun L, Pan P, Wang D. TRIM31 promotes proliferation, invasion and migration of glioma cells through Akt signaling pathway. Neoplasma 2019; 66:727-735. [DOI: 10.4149/neo_2019_190106n21] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 03/20/2019] [Indexed: 11/08/2022]
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Hamlat S, Pan P, Ferreira A, Mazzilli B, St-Amant N, Cerutti G, Gómez IMF, Ruiz Esparza LJ, Ponce EQ, Cubero M, Odino R, Pinones O, Pitois A, Rinker M. International Atomic Energy Agency's Analytical Laboratories for the Measurement of Environmental Radioactivity network: Experiences and perspectives in the North and Latin America region. Radiat Prot Environ 2019. [DOI: 10.4103/rpe.rpe_24_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Hamlat S, Thompson P, Rinker M, St-Amant N, Pan P, Peters K, Dagher E, Jovanovic S, Sauvé K. Independent environmental monitoring and public dose assessment around the Canadian Nuclear Power Plants. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-5903-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Yu C, Liu DW, Wang XT, He HW, Pan P, Xing ZQ. [The clinical significance of microcirculation and oxygen metabolism evaluation in acute kidney injury assessment in patients with septic shock after resuscitation]. Zhonghua Nei Ke Za Zhi 2018; 57:123-128. [PMID: 29397598 DOI: 10.3760/cma.j.issn.0578-1426.2018.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the value of microcirculation and oxygen metabolism evaluation (MicrOME) in acute kidney injury(AKI) evaluation in patients with septic shock after resuscitation. Methods: Consecutive patients with septic shock after resuscitation and mechanical ventilation were enrolled from October 2016 to February 2017 in ICU at Peking Union Medical College Hospital.Patients were divided into 3 groups based on 10 min transcutaneous oxygen challenge test transcutaneous partial pressure of oxygen(PtcO(2))and venoarterial pressure of carbon dioxide difference (Pv-aCO(2)) /arteriovenous O(2) content difference (Ca-vO(2)) by blood gas analysis, i.e. group A [ΔPtcO(2)>66 mmHg(1 mmHg=0.133 kPa) and Pv-aCO(2)/Ca-vO(2)≤1.23], group B (ΔPtcO(2)≤66 mmHg), group C (ΔPtcO(2)>66 mmHg and Pv-aCO(2)/Ca-vO(2)>1.23). Heart rate,mean arterial pressure,central venous pressure,noradrenaline dose,lactate,Pv-aCO(2),Ca-vO(2), lactate clearance, central venous oxygen saturation(ScvO(2)) and liquid equilibrium were assessed after resuscitation.AKI staging based on Kidney Disease Global Improving Outcomes (KDIGO) clinical practice guideline was analyzed. The predictive value of lactate, ScvO(2), Pv-aCO(2)/Ca-vO(2) to progression of AKI after resuscitation was determined using receiver operating characteristic(ROC)curve analysis. Results: A total of 49 septic shock patients were enrolled including 30 males and 19 females with mean age of (61.10±17.10)years old.There were 19 patients in group A,21 patients in group B, and 9 patients in group C. Acute physiology and chronic health evaluation Ⅱ score was 20.92±7.19 and sequential organ failure assessment score 12.02±3.28. There were 4 patients with AKI and 1 progressed in group A, 11 patients with AKI and 2 progressed in group B, 6 patients with AKI and 4 progressed in group C. The cutoff value of Pv-aCO(2)/Ca-vO(2) was equal or more than 2.20 for predicting progression of AKI, resulting in a sensitivity of 85.7% and a specificity of 73.8%. Conclusion: MicrOME is a significant parameter to predict the progression of AKI in patients with septic shock after resuscitation. Pv-aCO(2)/Ca-vO(2) is also a good predictive factor.
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Affiliation(s)
- C Yu
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Xian Y, Li B, Pan P, Wang Y, Pei X, Yang Y. Role of Autophagy in Ovarian Cryopreservation by Vitrification. Cryo Letters 2018; 39:201-210. [PMID: 30059567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
BACKGROUND Ovarian cryopreservation by vitrification and transplantation are useful methods to recover female fertility after radiotherapy and chemotherapy. As type II programmed cell death, autophagy plays important roles in ovarian follicle development, ovarian follicle atresia and anti-stress injury. OBJECTIVE The potential role of autophagy in ovarian vitrification was investigated. MATERIALS AND METHODS Mouse ovaries were cryopreserved by vitrification, and autophagy was treated, after which the ovarian histology was checked, and ovarian follicles were counted. The apoptotic rate was detected by TUNEL, and apoptotic molecular marker cleaved caspase-3 was checked by immunofluorescence and western blot analysis. RESULTS Our results suggested that autophagy was increased in the process of vitrification compared with the fresh ovaries (p<0.05). The number of primordial follicles was decreased through inhibiting or over-activating the autophagy by autophagy inhibitor or activator (p<0.05). However, the number of primary follicles, antral follicles and atretic follicles was not significantly different compared with vitrified/warmed groups. The apoptotic rate was significantly increased in the vitrified/warmed, autophagy-inhibiting and over-activating groups compared with the fresh group (p<0.05), and this result was further confirmed by western blot analysis. CONCLUSIONS Taken together, autophagy was activated in the ovarian cryopreservation by vitrification and plays a role in a natural adaptive response to cold stress in ovarian cryopreservation by vitrification.
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Affiliation(s)
- Y Xian
- Key Laboratory of Fertility Preservation and Maintenance, Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Department of Biochemistry, Ningxia Medical University, Yinchuan, Ningxia, China
| | - B Li
- Key Laboratory of Fertility Preservation and Maintenance, Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Department of Biochemistry, Ningxia Medical University, Yinchuan, Ningxia, China
| | - P Pan
- Key Laboratory of Fertility Preservation and Maintenance, Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Department of Biochemistry, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Y Wang
- Key Laboratory of Fertility Preservation and Maintenance, Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Department of Biochemistry, Ningxia Medical University, Yinchuan, Ningxia, China
| | - X Pei
- Key Laboratory of Fertility Preservation and Maintenance, Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Department of Biochemistry, Ningxia Medical University, Yinchuan, Ningxia, China.
| | - Y Yang
- Key Laboratory of Fertility Preservation and Maintenance, Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Department of Biochemistry, Ningxia Medical University, Yinchuan, Ningxia, China.
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Shao DW, Zhu XQ, Huo L, Sun W, Pan P, Chen W, Wang H, Liu B. The significance of Akt/NF-κb signaling pathway in the posterior cataract animal model. ACTA ACUST UNITED AC 2017; 118:423-426. [PMID: 28766353 DOI: 10.4149/bll_2017_082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To establish SD rat posterior capsular opacification (posterior capsular opacification- PCO) animal model, and to detect the expression of Akt/NF-kb signaling pathway in the PCO model. METHODS 30 healthy SD rats were randomly divided into control group (0d) and the experimental groups (7d and 14 d), there were 10 rats at all time points. All rats (right eye) were treated with the lens capsule, and the inflammatory reaction of the anterior segment of the eye and the occurrence of PCO at different time points were observed under the microscope. The TGF-β concentration of humor aquosus was measured at the different time points by ELISA method. Eyeballs were removed after the rats were killed. RT-PCR method was used to detect the gene expression levels of Akt and NF-κb and Westen Blot method to detect the protein expression of Akt, p-Akt, NF-κb and p-NF-κb. RESULTS TGF-β concentration, Akt and NF-κb gene expression, and Akt, p-Akt, NF-κb and p-NF-κb protein expression in humor aquosus, increased with the time and the time-dependence was significant. CONCLUSION Akt/NF-κb signaling pathway may be closely related to the occurrence and development of PCO, which may be related to the role of protein phosphorylation (Fig. 5, Ref. 20).
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Lin P, Pan P, Lan T. MEDICAL OUTCOME AND UTILIZATION FOR HIP FRACTURE PATIENTS WITH OR WITHOUT OUTPATIENT REHABILITATION. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- P. Lin
- Kuang Tien General Hospital, Taichung, Taiwan,
| | - P. Pan
- National Yang-Ming University Hospital, I-Lan, Taiwan,
| | - T. Lan
- National Yang-Ming University, Taipei, Taiwan
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Pan P, Bansal A, Genshaft S, Kim G, Wallace W, Suh R, Abtin F. Double- versus modified triple-freeze pulmonary cryoablation protocols: comparison of ablation and hemorrhage volume with different probe types in an in vivo porcine lung model. J Vasc Interv Radiol 2017. [DOI: 10.1016/j.jvir.2016.12.844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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23
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Pan JC, Booth J, Ross V, Harris L, Pan P. Abstract PR213. Anesth Analg 2016. [DOI: 10.1213/01.ane.0000492611.92153.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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He F, Pan P, Yuan Z, Huang J. Abstract 2952: Generation and molecular profiling of drug-resistant cancer cell lines. Cancer Res 2016. [DOI: 10.1158/1538-7445.am2016-2952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Drug resistance is the main cause of ineffective chemotherapy in patients. Many cancers respond initially well to therapy but eventually the cancer recurs as drug-resistant disease leading to the patient death. Therefore, a better understanding of the molecular basis of the drug resistance is warranted in order to elucidate the mechanisms and markers underlying this drug-resistant phenotype In this study, we aimed to generate and characterize a panel of drug resistant cancer cell lines, providing a valuable tool with which to investigate the molecular pathways and putative markers that may be associated with this resistance phenotype in cancer.
Citation Format: Fang He, Pengwei Pan, Zengjin Yuan, Jingqi Huang. Generation and molecular profiling of drug-resistant cancer cell lines. [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr 2952.
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Liang Y, Hua Q, Pan P, Yang J, Zhang Q. Development of a novel method to evaluate sialylation of glycoproteins and analysis of gp96 sialylation in Hela, SW1990 and A549 cell lines. Biol Res 2015; 48:52. [PMID: 26363641 PMCID: PMC4568068 DOI: 10.1186/s40659-015-0041-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 08/27/2015] [Indexed: 12/04/2022] Open
Abstract
Background Glycoproteins play a critical role in the cellular activities of eukaryotes. Sialic acid is typically the outermost monosaccharide of glycolipids and glycoproteins, and is necessary for normal development. Results A strategy based on avidin–biotin affinity was established to enrich sialylated glycoproteins from HeLa cervical carcinoma, SW1990 pancreatic adenocarcinoma, and A549 lung adenocarcinoma cells. Using HPLC–MS/MS, western blot, real-time PCR, and enzyme-linked immunosorbent assay, gp96 was identified in all three cell lines. No significant difference in the protein expression of gp96 was detected at the whole cell level, but the amount of biotinylated gp96 in SW1990 cells was 30–40 % lower than that in A549 and HeLa cells, and the amount of sialylated gp96 in SW1990 cells was 30 % lower than that in A549 and HeLa cells. Immunoblotting results showed that the expression of sialyltransferase proteins in the total cell lysates from HeLa and A549 cells were higher than that in SW1990 cells. Conclusions We established a new method for investigating the expression and sialylation of glycoproteins using metabolic labeling, click chemistry, and avidin–biotin affinity. We successfully used this method to purify sialylated glycoproteins from cancer cell lines. Our results showed that the levels of gp96 sialylation varied across different cancer cell lines, and this may be because of differences in sialyltransferase expression.
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Affiliation(s)
- Yangui Liang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, China.
| | - Qiang Hua
- Institute of Information On Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Pengwei Pan
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, China.
| | - Jie Yang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, China.
| | - Qi Zhang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin, 300071, China. .,China Center of Industrial Culture Collection, China National Research Institute of Food and Fermentation Industries, Beijing, 100015, China.
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Dai Z, Zhong J, Xiao P, Zhu Y, Chen F, Pan P, Shi H. Gray matter correlates of migraine and gender effect: A meta-analysis of voxel-based morphometry studies. Neuroscience 2015; 299:88-96. [PMID: 25943478 DOI: 10.1016/j.neuroscience.2015.04.066] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 04/24/2015] [Accepted: 04/27/2015] [Indexed: 11/19/2022]
Abstract
BACKGROUND An increasing number of neuroimaging studies have revealed gray matter (GM) anomalies of several brain regions by voxel-based morphometry (VBM) studies in migraineurs. However, not all the studies reported entirely consistent findings. Our aim is to investigate concurrence across VBM studies to help clarify the structural anomalies underpinning this condition. METHODS A systematic search of VBM studies of patients with migraine and healthy controls (HC) published in PubMed and Embase databases from January 2000 to March 2014 was conducted. A quantitative meta-analysis of whole-brain VBM studies in patients with migraine compared with HC was performed by means of anisotropic effect size version of signed differential mapping (AES-SDM) software package. RESULTS Nine studies comprising 222 patients with migraine and 230 HC subjects were included in the present study. Compared to HC subjects, the patients group showed consistent decreased GM in the posterior insular-opercular regions, the prefrontal cortex, and the anterior cingulate cortex. Results remained largely unchanged in the following jackknife sensitivity analyses. Meta-regression analysis showed that a higher percentage of females in the patient sample was associated with decreased GM in the right dorsolateral prefrontal cortex. CONCLUSIONS This is the first quantitative whole-brain VBM meta-analysis in migraine showing strong evidence of brain GM anomalies within the pain-processing neural network. Further longitudinal investigations are needed to determine whether these structural anomalies are reversible with effective treatment on migraine.
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Affiliation(s)
- Z Dai
- Department of Radiology, Affiliated Yancheng Hospital of Southeast University, Yancheng, PR China
| | - J Zhong
- Department of Neurology, Affiliated Yancheng Hospital of Southeast University, Yancheng, PR China
| | - P Xiao
- Department of Neurology, Affiliated Yancheng Hospital of Southeast University, Yancheng, PR China
| | - Y Zhu
- Department of Neurology, Affiliated Yancheng Hospital of Southeast University, Yancheng, PR China
| | - F Chen
- Department of Radiology, Affiliated Yancheng Hospital of Southeast University, Yancheng, PR China
| | - P Pan
- Department of Neurology, Affiliated Yancheng Hospital of Southeast University, Yancheng, PR China.
| | - H Shi
- Department of Neurology, Affiliated Yancheng Hospital of Southeast University, Yancheng, PR China.
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Ji Y, Chen S, Zhao L, Pan P, Wang L, Cai J, Dai D, Hu G, Cai JP, Huang H. In vitro
assessment of 39 CYP2C9
variants found in the Chinese population on the metabolism of the model substrate fluoxetine and a summary of their effects on other substrates. J Clin Pharm Ther 2015; 40:320-7. [PMID: 25884291 DOI: 10.1111/jcpt.12267] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 03/04/2015] [Indexed: 12/01/2022]
Affiliation(s)
- Y. Ji
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University; Wenzhou Medical University; Wenzhou Zhejiang China
| | - S. Chen
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University; Wenzhou Medical University; Wenzhou Zhejiang China
| | - L. Zhao
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University; Wenzhou Medical University; Wenzhou Zhejiang China
| | - P. Pan
- Department of Pharmacology; Wenzhou Medical University; Wenzhou Zhejiang China
| | - L. Wang
- Department of Pharmacology; Wenzhou Medical University; Wenzhou Zhejiang China
| | - J. Cai
- Department of Pharmacology; Wenzhou Medical University; Wenzhou Zhejiang China
| | - D. Dai
- The Key Laboratory of Geriatrics; Beijing Hospital and Beijing Institute of Geriatrics; Ministry of Health; Beijing China
| | - G. Hu
- Department of Pharmacology; Wenzhou Medical University; Wenzhou Zhejiang China
| | - J. P. Cai
- The Key Laboratory of Geriatrics; Beijing Hospital and Beijing Institute of Geriatrics; Ministry of Health; Beijing China
| | - H. Huang
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University; Wenzhou Medical University; Wenzhou Zhejiang China
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Yu C, Zhu W, Ji Y, Guo J, Pan P, Han J, Zhou X. A comparative study of intensity-modulated radiotherapy and standard radiation field with concurrent chemotherapy for local advanced cervical cancer. EUR J GYNAECOL ONCOL 2015; 36:278-282. [PMID: 26189253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE This study aimed to compare three-dimensional conformal radiotherapy (3D CRT) and intensity-modulated radiotherapy (IMRT) combined with concurrent chemotherapy for cervical cancer. MATERIALS AND METHODS A total of 72 patients with Grades IIa-IIIb cervical cancer were randomly divided into two groups, namely, the IMRT group for IMRT plan (primary lesion, 45 Gy/22; the pelvic wall lymphatic drainage area, 50 Gy/22), and the 3D CRT group (conformal pelvic radiotherapy, 45 Gy/22; subsequent supplement of pelvic wall, 6.0 Gy/3). Both groups received concurrent chemotherapy of nedaplatin 30 mg/m2 weekly for six cycles, with an after-loading therapy of 6 Gy/6 each time. RESULTS In the IMRT group, the grade III diarrhea rate was 5.6% and the rate in the 3D CRT group was 30.6%; both groups significantly differed. No significant difference was observed between the overall survival and disease-free survival in first, second, and third years in both groups. CONCLUSION Cervical cancer IMRT can significantly reduce the incidence of acute enteritis. For standard 3D CRT, no significant difference was observed in overall survival and disease-free survival.
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Mogg K, Salum GA, Bradley BP, Gadelha A, Pan P, Alvarenga P, Rohde LA, Pine DS, Manfro GG. Attention network functioning in children with anxiety disorders, attention-deficit/hyperactivity disorder and non-clinical anxiety. Psychol Med 2015; 45:2633-2646. [PMID: 26234806 PMCID: PMC6309546 DOI: 10.1017/s0033291715000586] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Research with adults suggests that anxiety is associated with poor control of executive attention. However, in children, it is unclear (a) whether anxiety disorders and non-clinical anxiety are associated with deficits in executive attention, (b) whether such deficits are specific to anxiety versus other psychiatric disorders, and (c) whether there is heterogeneity among anxiety disorders (in particular, specific phobia versus other anxiety disorders). METHOD We examined executive attention in 860 children classified into three groups: anxiety disorders (n = 67), attention-deficit/hyperactivity disorder (ADHD; n = 67) and no psychiatric disorder (n = 726). Anxiety disorders were subdivided into: anxiety disorders excluding specific phobia (n = 43) and specific phobia (n = 21). The Attention Network Task was used to assess executive attention, alerting and orienting. RESULTS Findings indicated heterogeneity among anxiety disorders, as children with anxiety disorders (excluding specific phobia) showed impaired executive attention, compared with disorder-free children, whereas children with specific phobia showed no executive attention deficit. Among disorder-free children, executive attention was less efficient in those with high, relative to low, levels of anxiety. There were no anxiety-related deficits in orienting or alerting. Children with ADHD not only had poorer executive attention than disorder-free children, but also higher orienting scores, less accurate responses and more variable response times. CONCLUSIONS Impaired executive attention in children (reflected by difficulty inhibiting processing of task-irrelevant information) was not fully explained by general psychopathology, but instead showed specific associations with anxiety disorders (other than specific phobia) and ADHD, as well as with high levels of anxiety symptoms in disorder-free children.
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Affiliation(s)
- K. Mogg
- Department of Psychology, University of Southampton, Southampton, UK
| | - G. A. Salum
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), Porto Alegre, Brazil
- Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - B. P. Bradley
- Department of Psychology, University of Southampton, Southampton, UK
| | - A. Gadelha
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), Porto Alegre, Brazil
- Federal University of São Paulo, São Paulo, Brazil
| | - P. Pan
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), Porto Alegre, Brazil
- Federal University of São Paulo, São Paulo, Brazil
| | - P. Alvarenga
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), Porto Alegre, Brazil
- University of São Paulo, São Paulo, Brazil
| | - L. A. Rohde
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), Porto Alegre, Brazil
- Federal University of Rio Grande do Sul, Porto Alegre, Brazil
- University of São Paulo, São Paulo, Brazil
| | - D. S. Pine
- National Institute of Mental Health Intramural Research Program, Bethesda, MD, USA
| | - G. G. Manfro
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), Porto Alegre, Brazil
- Federal University of Rio Grande do Sul, Porto Alegre, Brazil
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Li J, Mei H, Zheng W, Pan P, Sun X, Li F, Guo F, Zhou H, Ma J, Xu X, Zheng Y. A novel hydrogen peroxide biosensor based on hemoglobin-collagen-CNTs composite nanofibers. Colloids Surf B Biointerfaces 2014; 118:77-82. [DOI: 10.1016/j.colsurfb.2014.03.035] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 03/13/2014] [Accepted: 03/20/2014] [Indexed: 10/25/2022]
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Hou J, Shi Q, Cao M, Pan P, Ge G, Fan X, Bai G, Xin Y. A novel approach for fluorescent visualization of glycyrrhetic acid on a cell with a quantum dot. Biochemistry Moscow 2014; 79:25-30. [DOI: 10.1134/s0006297914010040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zhao Z, Miao Y, Pan P, Cheng B, Bai G, Wu H. Qingfei Xiaoyan Wan alleviates asthma through multi-target network regulation. Altern Ther Health Med 2013; 13:206. [PMID: 23919426 PMCID: PMC3765495 DOI: 10.1186/1472-6882-13-206] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Accepted: 08/02/2013] [Indexed: 01/02/2023]
Abstract
BACKGROUND Qingfei Xiaoyan Wan (QFXY), a traditional Chinese formula, is widely used for relieving cough, asthma, upper respiratory tract infection, bronchitis, pneumonia, and etc. in clinic. Comparing with other anti-asthma drugs, it is characterised with moderate and persistent efficacy as well as few side effects, however, the underlying action mechanism still remains elusive. This study aimed to identify QFXY multi-target network regulation as an asthma controller. METHODS This study established asthma model induced by histamine phosphate and acetylcholine chloride (His&Ach) in guinea pigs, which then were administered orally with QFXY. Hematoxylin-Eosin staining sections were applied for evaluating QFXY effect. In both Model and QFXY groups, customized microarrays and 2D electrophoresis were adopted to detect differentially expressed genes (diff genes) and proteins (diff proteins) respectively, and some diff proteins were identified with MALDI-TOF/MS. The checked diff genes and proteins underwent Cluster, GO and KEGG analysis. Based on GAD and HPRD databases, QFXY-asthma target regulation network was constructed. RESULTS His&Ach-induced asthma model of guinea pigs was established. HE sections presented anti-inflammation and anti-remodelling effects of QFXY. Comparing with the Model group, 55 diff genes and 6 diff proteins were identified in QFXY group. Validation by qPCR and Western blot showed the microarray and 2D data reliable. Furthermore, QFXY-asthma target regulation network was achieved. CONCLUSIONS A primarily combined genomic and proteomic screening of QFXY targets displayed a series of candidate genes and proteins, which indicated that the effect of QFXY relied on the combined mechanism, anti-inflammation and anti-remodelling, as well as influencing signal transduction in vivo.
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Salum GA, Mogg K, Bradley BP, Gadelha A, Pan P, Tamanaha AC, Moriyama T, Graeff-Martins AS, Jarros RB, Polanczyk G, do Rosário MC, Leibenluft E, Rohde LA, Manfro GG, Pine DS. Threat bias in attention orienting: evidence of specificity in a large community-based study. Psychol Med 2013; 43:733-745. [PMID: 22850475 DOI: 10.1017/s0033291712001651] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Preliminary research implicates threat-related attention biases in paediatric anxiety disorders. However, major questions exist concerning diagnostic specificity, effects of symptom-severity levels, and threat-stimulus exposure durations in attention paradigms. This study examines these issues in a large, community school-based sample. Method A total of 2046 children (ages 6-12 years) were assessed using the Development and Well Being Assessment (DAWBA), Childhood Behavior Checklist (CBCL) and dot-probe tasks. Children were classified based on presence or absence of 'fear-related' disorders, 'distress-related' disorders, and behavioural disorders. Two dot-probe tasks, which differed in stimulus exposure, assessed attention biases for happy-face and threat-face cues. The main analysis included 1774 children. RESULTS For attention bias scores, a three-way interaction emerged among face-cue emotional valence, diagnostic group, and internalizing symptom severity (F = 2.87, p < 0.05). This interaction reflected different associations between internalizing symptom severity and threat-related attention bias across diagnostic groups. In children with no diagnosis (n = 1411, mean difference = 11.03, s.e. = 3.47, df = 1, p < 0.001) and those with distress-related disorders (n = 66, mean difference = 10.63, s.e. = 5.24, df = 1, p < 0.05), high internalizing symptoms predicted vigilance towards threat. However, in children with fear-related disorders (n = 86, mean difference = -11.90, s.e. = 5.94, df = 1, p < 0.05), high internalizing symptoms predicted an opposite tendency, manifesting as greater bias away from threat. These associations did not emerge in the behaviour-disorder group (n = 211). CONCLUSIONS The association between internalizing symptoms and biased orienting varies with the nature of developmental psychopathology. Both the form and severity of psychopathology moderates threat-related attention biases in children.
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Affiliation(s)
- G A Salum
- National Institute of Developmental Psychiatry for Children and Adolescents (INCT-CNPq), Brazil.
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Ding J, Ji J, Zhu W, Zhou K, Han J, Zhang Y, Yu C, Li T, Tao G, Ji F, Zhou X, Pan P. A retrospective study of different treatments of limited-stage small-cell esophageal carcinoma and associated prognostic factor analysis. Dis Esophagus 2013; 26:696-702. [PMID: 23317069 DOI: 10.1111/dote.12017] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Primary, small-cell esophageal carcinoma (SCEC) is a rare but highly malignant tumor. Due to lack of randomized, controlled, prospective studies, there are currently no unified treatment modalities for SCEC. This study retrospectively analyzed the outcomes of different treatments and prognostic factors that influence overall survival in patients with limited-stage SCEC. The study included 106 patients pathologically diagnosed with limited-stage SCEC at Huai'an First People's Hospital, Nanjing Medical University (Huai'an, China), between 1998 and 2007. There were 66 males and 40 females, with a median age of 58 years (range: 45-77 years). Fourteen patients received surgery alone, 42 received surgery and postoperative chemotherapy, 11 received radiotherapy alone, and 39 received concurrent chemoradiotherapy. Combined modality treatment with and without chemotherapy yielded 5-year survival rates (5YSRs) of 27.2% and 0%, respectively. Associated median survival times were 22 months and 11 months, respectively, with a hazard ratio (HR) of 2.30 (95% confidence interval [CI]: 1.42-3.73, P = 0.001). Among patients treated with surgery plus postoperative chemotherapy or with concurrent chemoradiotherapy, the 5YSRs were 31.0% and 23.1%, respectively. Median survival times were 26 months and 18 months, with an HR of 1.25 (95% CI: 0.75-2.09, P = 0.725). Multivariate survival analysis using Cox regression model showed that chemotherapy was a positive independent prognostic factor for SCEC (HR 2.92, 95% CI: 1.25-6.80). Chemotherapy-based combined modality treatment appears to increase the long-term survival of patients with limited-stage SCEC. Similar overall survival rates results are achieved with surgery combined with chemotherapy as with concurrent chemoradiotherapy, with chemotherapy being an independent prognostic factor. Randomized, controlled, prospective studies are needed to identify optimal chemotherapy regimens for treating SCEC.
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Affiliation(s)
- J Ding
- Department of Radiation Oncology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu, China
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Cui Q, Hou Y, Hou J, Pan P, Li LY, Bai G, Luo G. Preparation of functionalized alkynyl magnetic microspheres for the selective enrichment of cell glycoproteins based on click chemistry. Biomacromolecules 2012; 14:124-31. [PMID: 23214973 DOI: 10.1021/bm301477z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Functionalized alkynyl polyvinyl alcohol magnetic microspheres (PVA MMs) were developed for the specific enrichment of sialic acid-rich glycoproteins by click chemistry. The capture capability for proteins was evaluated through a novel dual-labeled bovine serum albumin (BSA) that utilizes fluorescence resonance energy transfer (FRET). The PVA MM parameters, including the size and coverage of functionalized groups, were optimized by response surface methodology. The optimal parameters obtained were 1.25-6.31 μm in size and 48.53-73.05% in coverage. Then, the optimal PVA MMs were synthesized, and the morphology and surface chemical properties were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FT-IR). To capture glycoproteins from the cell surface, a bioorthogonal chemical method was applied to metabolically label them with an azide group. The functionalized alkynyl PVA MMs showed a high specificity and strong binding capability for glycoproteins through a [3 + 2] cycloaddition reaction. The results indicated that the functionalized alkynyl PVA MMs could be applied to the enrichment of cell glycoproteins, and the merits of the MMs suggested an attractive and potential way to facilitate glycoprotein research.
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Affiliation(s)
- Qingxin Cui
- College of Pharmacy, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, People's Republic of China
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Yang JC, Wang ZG, Zhou J, Jiang HM, Zhang JF, Pan P, Han Z, Lu C, Li LL, Ge CL. Inorganic phosphorus fractionation and its translocation dynamics in a low-P soil. J Environ Radioact 2012; 112:64-69. [PMID: 22609804 DOI: 10.1016/j.jenvrad.2012.03.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Revised: 03/16/2012] [Accepted: 03/18/2012] [Indexed: 06/01/2023]
Abstract
The translocation of different inorganic phosphorus (Pi) forms in a low-P soil (Langfang experimental station, Hebei province, China) over time was investigated using P fractionation extraction and a (32)P tracer technique. The L-value and P availability of the soil was assessed using 5 different maize genotype (Zea mays L.) cultivars. The results showed that the different Pi fractions in the soil increased in the order of H(2)SO(4)-extractable P (Ca(10)-P) > Na(3)C(6)H(5)O(7)-Na(2)S(2)O(4)-extractable P (O-P) > NH(4)Ac-extractable P (Ca(8)-P) > NaHCO(3)-extractable P (Ca(2)-P), NH(4)F-extractable P (Al-P), NaOH-Na(2)CO(3)-extractable P (Fe-P), and the content of plant-unavailable P (Ca(10)-P + O-P) was high, up to 79.1%, which might be an important reason for P deficiency in this low-P soil. The (32)P tracer results showed that after the addition of (32)P-Pi to the soil with no P fertilizer applied for 25 d, 29.0% of (32)P was quickly transformed into Ca(2)-P (rapidly available P), and 66.1% of (32)P was transformed into Al-P, Fe-P and Ca(8)-P (slowly available P). Only 5.0% of (32)P was transformed into O-P and Ca(10)-P (plant-unavailable P). Moreover, in the soil with P fertilizer applied, (32)P transformation into Ca(2)-P increased, and the transformation into Ca(8)-P + Fe-P + AL-P and O-P, Ca(10)-P significantly decreased compared to the soil with no P fertilizer applied (p < 0.05). This result suggested a higher rate for water-soluble P transformation to slowly available and plant-unavailable P in P deficient soil than in soil with sufficient P. The results of maize L-value determination showed that different genotype maize cultivars had different soil P-use efficiency and low-P tolerance mechanisms. Low-P tolerant cultivar DSY-32 regulated soil P-use efficiency and plant P content according to exogenous P fertilizer application. However, another low-P tolerant cultivar, DSY-2, used soil P more efficiently, regardless of the application of exogenous P.
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Affiliation(s)
- J C Yang
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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Coakley B, Kalir D, Ma G, Ozao J, Pan P, Chen S, Divino C. The Novel Role of the Tyrosine Kinase Inhibitor Sunitinib on Control of Myeloid-Derived Suppressor Cell Function and T-Regulatory Cell to Th17/Th1 Conversion. J Surg Res 2012. [DOI: 10.1016/j.jss.2011.11.377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Eisenstein S, Coakley B, Briley-Saebo K, Ma G, Meseck M, Woo S, Pan P, Shu-Hsia C, Divino C. A Novel Role for Myeloid Derived Suppressor Cells in Tumor-specific Therapeutic Targeting. J Surg Res 2012. [DOI: 10.1016/j.jss.2011.11.557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Liu JB, Hong FC, Pan P, Zhou H, Yang F, Cai YM, Wen LZ, Lai YH, Lin LJ, Zeegers MP. A risk model for congenital syphilis in infants born to mothers with syphilis treated in gestation: a prospective cohort study. Sex Transm Infect 2010; 86:292-6. [DOI: 10.1136/sti.2009.037549] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Eisenstein S, Ma G, Pan P, Chen S, Divino C. Paired Immunoglobulin-Like Receptor-B (PIRB) Regulates the Suppressive Function and M1/M2 Differentiation of MDSCs. J Surg Res 2010. [DOI: 10.1016/j.jss.2009.11.636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Dhupar R, Pan P, Cardinal J, Cho S, Klune J, Geller D, Tsung A. QS395. HMGB1 Release is Interferon Regulatory Factor-1 (IRF-1) Dependent in Endotoxemia. J Surg Res 2009. [DOI: 10.1016/j.jss.2008.11.706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Hong FC, Feng TJ, Cai YM, Wen LZ, Pan P, Lan LN, Lai YH, Zhou H, Liu XL, Lin SP, Chen G, Chen XS. Burden of syphilis infections in Shenzhen, China: a preliminary estimation. Int J STD AIDS 2009; 20:115-8. [DOI: 10.1258/ijsa.2008.008252] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Information on the prevalence and incidence of sexually transmitted infections is important for developing prevention and control strategies and allocating human and financial resources. However, there are no available estimates of such information for many areas in China. In this study, we used the existing data to make a preliminary estimation of syphilis infections in Shenzhen city, in south-eastern China. Data on prevalence rates of syphilis infections among different populations were obtained from the local HIV/sexually transmitted disease second-generation surveillance programme, and the sizes of different populations were estimated based on the most recently available figures. It was estimated that 83,760 (range 77,490–90,020) people are currently infected with syphilis, giving a prevalence of 0.71–0.82% (0.76% on average) in Shenzhen. Around 18% of these syphilis infections occur among men who have sex with men and another 15.8% and 8.7% occur among female sex workers and their clients, respectively. These estimates suggest that a combination of unprotected paid sex and sex between men may be sustaining the epidemic of syphilis in the study area. The preliminary estimates will assist the government in planning and improving its comprehensive intervention programmes for the future control and prevention of syphilis.
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Affiliation(s)
- F-C Hong
- Shenzhen Institute of Dermatology, Shenzhen Center for Chronic Disease Control, Shenzhen
| | - T-J Feng
- Shenzhen Institute of Dermatology, Shenzhen Center for Chronic Disease Control, Shenzhen
| | - Y-M Cai
- Shenzhen Institute of Dermatology, Shenzhen Center for Chronic Disease Control, Shenzhen
| | - L-Z Wen
- Shenzhen Institute of Dermatology, Shenzhen Center for Chronic Disease Control, Shenzhen
| | - P Pan
- Shenzhen Institute of Dermatology, Shenzhen Center for Chronic Disease Control, Shenzhen
| | - L-N Lan
- Shenzhen Institute of Dermatology, Shenzhen Center for Chronic Disease Control, Shenzhen
| | - Y-H Lai
- Shenzhen Institute of Dermatology, Shenzhen Center for Chronic Disease Control, Shenzhen
| | - H Zhou
- Baoan District Hospital of Maternal and Child Health, Shenzhen
| | - X-L Liu
- Shenzhen Institute of Dermatology, Shenzhen Center for Chronic Disease Control, Shenzhen
| | - S-P Lin
- Shenzhen Institute of Dermatology, Shenzhen Center for Chronic Disease Control, Shenzhen
| | - G Chen
- Shenzhen Institute of Dermatology, Shenzhen Center for Chronic Disease Control, Shenzhen
| | - X-S Chen
- National Center for STD Control, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Institute of Dermatology, Nanjing, Peoples Republic of China
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Hong FC, Zhou H, Cai YM, Pan P, Feng TJ, Liu XL, Chen XS. Prevalence of syphilis and HIV infections among men who have sex with men from different settings in Shenzhen, China: implications for HIV/STD surveillance. Sex Transm Infect 2008; 85:42-4. [PMID: 18653567 DOI: 10.1136/sti.2008.031682] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
HIV/STD surveillance system data are important for developing prevention and control programmes for men who have sex with men (MSM), now a core group in Chinese HIV/STD surveillance activities. MSM were recruited from different settings in Shenzhen and were tested for HIV and syphilis. A substantial prevalence of HIV and syphilis infections was found in this population. However, risk behaviours and sociodemographic characteristics varied greatly among MSM recruited from the different settings (gay sauna, gay bar and MSM clinic), suggesting that carefully considering and selecting appropriate settings to represent the MSM population is critical for developing HIV and STD surveillance and prevention programmes.
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Affiliation(s)
- F-C Hong
- Shenzhen Center for Chronic Diseases Control and Shenzhen Institute of Dermatology, Shenzhen, China
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Cheng JQ, Zhou H, Hong FC, Zhang D, Zhang YJ, Pan P, Cai YM. Syphilis screening and intervention in 500,000 pregnant women in Shenzhen, the People's Republic of China. Sex Transm Infect 2007; 83:347-50. [PMID: 17693449 PMCID: PMC2659022 DOI: 10.1136/sti.2006.023655] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES To understand the disease epidemiology of syphilis in pregnant women, and to evaluate the effectiveness of the screening and intervention programme, for the purpose of controlling mother-to-child syphilis transmission in Shenzhen, in the People's Republic of China (PRC). METHODS At the Shenzhen Center for Disease Control and Prevention (SZCDC), we used the toluidine red unheated serum test (TRUST) for the primary screening of pregnant women, and confirmed positive results with the Treponema pallidum particle agglutination (TPPA) test. We informed and treated those with positive results. For the women who chose to proceed with the pregnancy, we clinically screened their babies for congenital syphilis using the 19S-IgM FTA-Abs test. RESULTS Between 1 July 2002 and 31 December 2005, we screened 477,656 pregnant women for syphilis, of whom 2208 (0.5%) tested positive. From 2003 to 2005, we collected epidemiological and treatment data from 2019 positive syphilis cases. Of these, 1855 (91.9%) of the pregnant women received treatment. Among the 1020 infants born to these women, 92 (9.0%) were confirmed to have congenital syphilis. If we exclude the mothers who had syphilis positive babies without undergoing prenatal screening, the project's success rate for mother-to-child transmission intervention was 99.1%. CONCLUSIONS After four years of implementation, we proved the programme to be successful in preventing mother-to-child syphilis transmission. Further work should be done to ensure the earlier screening and treatment of pregnant women.
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Affiliation(s)
- J Q Cheng
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China.
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Affiliation(s)
- M Yu
- Laboratory of Molecular Biology, School of Animal Science, Huazhong Agricultural University, Wuhan 430070, China
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Pan P, Wu E, Chen Q. [Relation between Chlamydia pneumoniae infection and acute attack of asthma]. Hunan Yi Ke Da Xue Xue Bao 2002; 24:209-10. [PMID: 11938796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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Pan P. [Literature research on the use of medicinal thread in some ulcerous diseases in TCM] (Chi). Zhonghua Yi Shi Za Zhi 2001; 19:33-7. [PMID: 11612477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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Yu M, Zhao S, Liu B, Xiong T, Pan P, Li K. Rapid communication: isolation and regional localization of the porcine glial fibrillary acidic protein (GFAP) gene. J Anim Sci 2001; 79:2754. [PMID: 11721857 DOI: 10.2527/2001.79102754x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- M Yu
- Laboratory of Molecular Biology and Animal Breeding, School of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
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Zhao Q, Pan P, Wen N, Shao YM. [The influential factors on DNA cycle sequencing and data evaluation of practical example]. Zhonghua Shi Yan He Lin Chuang Bing Du Xue Za Zhi 2001; 15:283-6. [PMID: 11986708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
OBJECTIVE To study some factors that may influence DNA sequencing by analyzing 2040 sequencing samples retrospectively. METHODS The effects of DNA templates, primers, cycle sequencing reactions as well as purification methods were comparatively analyzed. RESULTS 70 percent of sequencing failure is caused by DNA template. Characteristics of data from poor template preparation include top-heavy with a short read length, acceptable signal with some noise peaks (Ns), weak signal, overall noise and flat lines or no signal. The ineffective primers can cause 15.4 percent sequencing failure. Possible explanations include primer mismatches and low Tm value. CONCLUSIONS The quality of template DNA can have a major impact on the quality of the DNA sequencing. Purification of the extension products is absolutely necessary in DNA sequencing, and isopropanol precipitation is highly recommended for this procedure.
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Affiliation(s)
- Q Zhao
- National Center for AIDS Prevention and Control, Beijing 100050, China
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