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Zhou R, Cui W, Zeng N, Su B, Chen Y, Shi H, Zhao S. Dnttip2 is essential for 18S rRNA processing and digestive organ development in zebrafish. Biochem Biophys Res Commun 2024; 709:149838. [PMID: 38564939 DOI: 10.1016/j.bbrc.2024.149838] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 02/06/2024] [Accepted: 03/26/2024] [Indexed: 04/04/2024]
Abstract
Dnttip2 is one of the components of the small subunit (SSU) processome. In yeast, depletion of dnttip2 leads to an inefficient processing of pre-rRNA and a decrease in synthesis of the mature 18S rRNA. However, the biological roles of Dnttip2 in higher organisms are poorly defined. In this study, we demonstrate that dnttip2 is a maternal gene in zebrafish. Depletion of Dnttip2 leads to embryonic lethal with severe digestive organs hypoplasia. The loss of function of Dnttip2 also leads to partial defects in cleavage at the A0-site and E-site during 18S rRNA processing. In conclusion, Dnttip2 is essential for 18S rRNA processing and digestive organ development in zebrafish.
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Affiliation(s)
- Ru Zhou
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Wei Cui
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Ni Zeng
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Baochun Su
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yayue Chen
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Hui Shi
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Shuyi Zhao
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
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Su B, Martens P. Public concern for animal welfare and its correlation with ethical ideologies after coronavirus disease (COVID-19) in China. Anim Welf 2022. [DOI: 10.7120/09627286.31.3.003] [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: 11/05/2022]
Abstract
The outbreak of coronavirus disease (COVID-19) represents a major public health challenge and a serious threat to sustainable social development. A consideration of animal welfare is clearly justified, given the potential contribution of animals to the spread of the disease. The present
study, therefore, sought to investigate the concern the Chinese people have for animal welfare (PCAW) and how their 'ethical ideology' (idealism and relativism) determines PCAW after COVID-19, through comparison with the same study, carried out in China in 2015. Our results demonstrated a
significant improvement in Chinese PCAW after COVID-19. The adverse impact of COVID-19 may have resulted in a lowered idealism score and this decreased score served to neutralise significant correlations between idealism and PCAW, compared to the 2015 results. The global pandemic did not increase
people's relativism score and a significant correlation was found between relativism and PCAW. Gender, age, educational level, public perception of animals after COVID-19, zoo and aquarium visiting were all shown to be predictor variables for PCAW. This study is one of the first to investigate
Chinese PCAW after COVID-19 and can therefore provide knowledge that will potentially increase Chinese PCAW.
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Affiliation(s)
- B Su
- School of Philosophy and Social Development, Shandong University, Jinan, People's Republic of China
| | - P Martens
- University College Venlo, Maastricht University, Venlo, The Netherlands
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Su B, Kong LG, Zhang AB, Tian Z, Wang WJ, Lv YL, Ma LY. The bipolar charge plasma spectrometer (BCPS) based on the 2π-field-of-view double-channel electrostatic analyzer. Rev Sci Instrum 2022; 93:043305. [PMID: 35489956 DOI: 10.1063/5.0082410] [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] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
In this paper, we propose a bipolar charge plasma spectrometer based on the double-channel electrostatic analyzer for simultaneously measuring thermal ions and electrons with a 2π hemispherical field-of-view. Both ions and electrons within the wide field-of-view enter the spectrometer, pass through the variable geometric factor channel, and are then separated by the double-channel electric fields. Two microchannel plates are accommodated at the exit of the analyzer for ion and electron detection. The main performance of the spectrometer has been obtained from on-ground calibration. With the electrostatic deflectors and the cylindrically symmetric structure, the spectrometer provides simultaneous measurements of thermal ion and electron velocity distributions with a shared field-of-view of 360° (azimuth angle) by 90° (elevation angle) and a broad energy range for both ions and electrons. The ion analyzer constant and the electron analyzer constant are 11.1 and 9.7, respectively. The detecting energy range of 33.3-44.4 keV for ions and 29.1-38.8 keV for electrons can be obtained by using the sweeping electrostatic analyzer voltage range of 3-4000 V. The ion and electron energy resolutions are 9.6% and 6.1%, respectively. The variable geometric factor function provides a large geometric factor adjusting range for both ion and electron measurements by two orders of magnitude, which fulfills the requirements of a large dynamic flux range for simultaneous measurements of space thermal plasma in the solar wind and magnetosphere.
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Affiliation(s)
- B Su
- National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China
| | - L G Kong
- National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China
| | - A B Zhang
- National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China
| | - Z Tian
- National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China
| | - W J Wang
- National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China
| | - Y L Lv
- National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China
| | - L Y Ma
- National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China
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Su B, Li SR, Liu J. [Restless mouth syndrome: a case report]. Zhonghua Kou Qiang Yi Xue Za Zhi 2022; 57:294-296. [PMID: 35280009 DOI: 10.3760/cma.j.cn112144-20210727-00342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- B Su
- Department of Orthopedic, The Fourth People's Hospital of Jinan, Jinan 250031, China
| | - S R Li
- Department of Orthopedic, The Fourth People's Hospital of Jinan, Jinan 250031, China
| | - J Liu
- Department of Orthopedic, The Fourth People's Hospital of Jinan, Jinan 250031, China
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Zheng B, Su B, Udeh-Momoh C, Price G, Tzoulaki I, Vamos EP, Majeed A, Riboli E, Ahmadi-Abhari S, Middleton LT. Associations of Cardiovascular and Non-Cardiovascular Comorbidities with Dementia Risk in Patients with Diabetes: Results from a Large UK Cohort Study. J Prev Alzheimers Dis 2022; 9:86-91. [PMID: 35098977 DOI: 10.14283/jpad.2022.8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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] [Indexed: 06/14/2023]
Abstract
BACKGROUND Type 2 diabetes (T2D) is an established risk factor for dementia. However, it remains unclear whether the presence of comorbidities could further increase dementia risk in diabetes patients. OBJECTIVES To examine the associations between cardiovascular and non-cardiovascular comorbidities and dementia risk in T2D patients. DESIGN Population-based cohort study. SETTING The UK Clinical Practice Research Datalink (CPRD). PARTICIPANTS 489,205 T2D patients aged over 50 years in the UK CPRD. MEASUREMENTS Major cardiovascular and non-cardiovascular comorbidities were extracted as time-varying exposure variables. The outcome event was dementia incidence based on dementia diagnosis or dementia-specific drug prescription. RESULTS During a median of six years follow-up, 33,773 (6.9%) incident dementia cases were observed. Time-varying Cox regressions showed T2D patients with stroke, peripheral vascular disease, atrial fibrillation, heart failure or hypertension were at higher risk of dementia compared to those without such comorbidities (HR [95% CI] = 1.64 [1.59-1.68], 1.37 [1.34-1.41], 1.26 [1.22-1.30], 1.15 [1.11-1.20] or 1.10 [1.03-1.18], respectively). Presence of chronic obstructive pulmonary disease or chronic kidney disease was also associated with increased dementia risk (HR [95% CI] = 1.05 [1.01-1.10] or 1.11 [1.07-1.14]). CONCLUSIONS A range of cardiovascular and non-cardiovascular comorbidities were associated with further increases of dementia risk in T2D patients. Prevention and effective management of these comorbidities may play a significant role in maintaining cognitive health in T2D patients.
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Affiliation(s)
- B Zheng
- Prof. Lefkos Middleton, Ageing Epidemiology Research Unit, School of Public Health, Faculty of Medicine, Imperial College London, London W6 8RP, UK. E-mail: ; Tel: +44 20 3311 0216; Fax: +44 20 3311 0216
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Ahmad Fauzi NA, Ireland AJ, Sherriff M, Bandara HMHN, Su B. Nitrogen doped titanium dioxide as an aesthetic antimicrobial filler in dental polymers. Dent Mater 2021; 38:147-157. [PMID: 34836699 DOI: 10.1016/j.dental.2021.10.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 10/07/2021] [Accepted: 10/29/2021] [Indexed: 12/27/2022]
Abstract
OBJECTIVE To develop an aesthetic resin composite using a nitrogen-doped titanium dioxide (NTiO2) filler that possesses antimicrobial properties against cariogenic bacteria. METHODS N-TiO2 powder was manufactured by calcining commercial TiO2 with urea. Free radical release from the N-TiO2 powder under visible light irradiation was analysed using UV-Vis spectrophotometry. The N-TiO2 powder was incorporated into a dental resin and the photocatalytic activity assessed using a dye under both visible light and dark conditions. Using XTT assay to measure the cellular metabolic activity, the antibacterial properties of the N-TiO2 /resin composite discs were tested using Streptococcus mutans. RESULTS Doping nitrogen of TiO2 resulted in a band gap shift towards the visible light spectrum, which enabled the powder to release reactive oxygen species when exposed to visible light. When incorporated into a dental resin, the N-TiO2/resin composite still demonstrated sustained release of reactive oxygen species, maintaining its photocatalytic activity and showing an antibacterial effect towards Streptococcus mutans under visible light conditions. SIGNIFICANCE N-TiO2 filled resin composite shows great promise as a potential aesthetic resin based adhesive for orthodontic bonding.
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Affiliation(s)
- N A Ahmad Fauzi
- Paediatric Dentistry and Orthodontics Department, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia; Child Dental Health, Bristol Dental School, University of Bristol, Lower Maudlin Street, Bristol BS1 2LY, United Kingdom
| | - A J Ireland
- Child Dental Health, Bristol Dental School, University of Bristol, Lower Maudlin Street, Bristol BS1 2LY, United Kingdom
| | - M Sherriff
- Child Dental Health, Bristol Dental School, University of Bristol, Lower Maudlin Street, Bristol BS1 2LY, United Kingdom
| | - H M H N Bandara
- Oral Microbiology, Bristol Dental School, University of Bristol, Lower Maudlin Street, Bristol BS1 2LY, United Kingdom
| | - B Su
- Biomaterials Engineering, Bristol Dental School, University of Bristol, Lower Maudlin Street, Bristol BS1 2LY, United Kingdom.
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Su B, Song Y, Hu K. [Management strategies for obstructive sleep apnea under the normalized prevention and control of the novel coronavirus pneumonia epidemic]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:741-745. [PMID: 34645140 DOI: 10.3760/cma.j.cn112147-20210104-00011] [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: 06/13/2023]
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Abstract
OBJECTIVE At present, the incidence of acute myocardial infarction is increasing year by year, and it has become one of the diseases with the highest mortality rate in humans. Myocardial ischemia-reperfusion injury (MIRI) is a major problem in the treatment of myocardial infarction, but clinically there is no effective way to treat MIRI. This study used Cystatin C (Cys C) to treat cardiomyocytes and rats to investigate the effect of Cys C on MIRI. MATERIALS AND METHODS We used H2O2 to induce rat cardiomyocytes (H9c2 cells) injury and stimulated the cells with Cys C. Cell counting kit 8 (CCK8) assay was used to determine the optimal concentration of H2O2 and Cys C to stimulate H9c2 cells. We determined the effects of Cys C on oxidative stress and apoptosis levels in H9c2 cells by measuring the activity of dehydrogenase (LDH), superoxide dismutase (SOD) and malondialdehyde (MDA), and the expression of apoptosis-related molecules (caspase3/8/9, Bax and Bcl-2). Changes in the activity of the NF-κB signaling pathway in H9c2 cells were also detected. In addition, we made rat MIRI models by ligating the coronary arteries and used Cys C to treat rats to verify the effect of Cys C on MIRI. RESULTS According to the results of the CCK8 assay, 1000 μM of H2O2 and 15 μM of Cys C were used to stimulate H9c2 cells. Cys C alleviated H2O2-induced H9c2 cell injury, manifested as a decrease in LDH and MDA activity and an increase in SOD activity. Cys C also reduced the apoptosis level in H9c2 cells. The activity of NF-κB signaling pathway in injured H9c2 cells was increased, and stimulation of Cys C could inhibit the NF-κB signaling pathway in H9c2 cells. The application of Cys C in MIRI rats also verified its therapeutic effect on MIRI. CONCLUSIONS Cys C reduced the oxidative stress and apoptosis levels of cardiomyocytes by inhibiting the activity of NF-κB signaling pathway in cardiomyocytes, thereby reducing cardiomyocyte injury and treating MIRI.
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Affiliation(s)
- B Su
- Department of Cardiology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China.
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Su B, Kong LG, Zhang AB, Klecker B, Escoubet CP, Kataria DO, Dai L. Performance and simulated moment uncertainties of an ion spectrometer with asymmetric 2π field of view for ion measurements in space. Rev Sci Instrum 2021; 92:024501. [PMID: 33648106 DOI: 10.1063/5.0028866] [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] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 01/22/2021] [Indexed: 06/12/2023]
Abstract
Space plasma instruments provide 3D particle velocity distribution functions. Because of telemetry limitations, these cannot be transmitted in high time resolution and the plasma needs to be characterized by moments of the velocity distribution function. These moment uncertainties have vital effects on the reliability and accuracy of onboard plasma moments. We assess the measurement accuracy for magnetosheath and solar wind ions using an ion spectrometer with an asymmetric field of view designed for the all-sky measurement of low-energy ions in the magnetosheath and solar wind. We focus on moment uncertainties for the ideal spectrometer, not considering the background counts, which may have considerable effects on the uncertainties in real life. To obtain number density, bulk velocity, and temperature, different orders of moments are integrated assuming a Maxwellian velocity distribution. Based on the design specifications, we use simulations to estimate systematic and random errors for typical plasma conditions. We find that the spectrometer resolution is adequate for determining the density of solar wind (∼7% error) and magnetosheath ions (∼4% error). The resolution is also adequate for determining the temperature of solar wind (∼10% error) and magnetosheath ions (∼2% error). For high speed flows with a bulk velocity of 750 km/s and a temperature of 20 eV, the maximum density and temperature errors become 9% and 7%, respectively. The bulk velocity errors are less than 2% for all cases. The contributions of heavy ions to the systematic errors are less than 5% for magnetosheath ions and less than 8% for solar wind ions.
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Affiliation(s)
- B Su
- National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China
| | - L G Kong
- National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China
| | - A B Zhang
- National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China
| | - B Klecker
- Max-Planck-Institut für extraterrestrische Physik, Garching 85748, Germany
| | - C P Escoubet
- European Space Research and Technology Center, European Space Agency, Noordwijk 2201AZ, The Netherlands
| | - D O Kataria
- Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Surrey RH5 6NT, United Kingdom
| | - L Dai
- National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China
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Jiang TY, Hou JH, Su B, Zhang T, Yang Y, Liu ZY, Wang W, Guo CP, Dai LL, Sun LJ, Wu H. Demographic and clinical factors associated with immune reconstitution in HIV/HBV co-infected and HIV mono-infected patients: a retrospective cohort study. HIV Med 2020; 21:722-728. [PMID: 33369028 DOI: 10.1111/hiv.13023] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To describe the clinical characteristics and factors associated with CD4 T-cell count and CD4/CD8 ratio restoration in HIV mono-infected and HIV/HBV co-infected individuals, and to explore liver and renal functional changes in both groups. METHODS A retrospective cohort study was performed including 356 HIV/HBV co-infected and 716 HIV mono-infected participants who initiated antiretroviral therapy (ART) during 2013-2017 in Beijing Youan Hospital, China. Demographic and clinical characteristics were compared between the two groups, using χ2 and Mann-Whitney non-parametric tests. Bivariate and multivariate Cox regression models were used to test their association. RESULTS Baseline HIV viral load and ART regimen were found to be significantly associated with CD4 T-cell restoration among HIV-infected participants, whereas baseline HIV viral load was the only significant factor associated with CD4 T-cell restoration in HIV/HBV co-infected participants. The final model showed that baseline HIV viral load and ART regimen were significantly associated with CD4/CD8 ratio restoration among HIV-infected participants, while baseline HIV viral load was the significant factor. Liver and renal functions were similar at the endpoint (P > 0.05). CONCLUSIONS Baseline HIV viral load count was found to be the key factor affecting immune restoration in both HIV and HIV/HBV individuals. Future multi-wave prospective studies are needed to clarify the potential biological mechanism.
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Affiliation(s)
- T Y Jiang
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory for HIV/AIDS Research, Beijing, China
| | - J H Hou
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory for HIV/AIDS Research, Beijing, China
| | - B Su
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory for HIV/AIDS Research, Beijing, China
| | - T Zhang
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory for HIV/AIDS Research, Beijing, China
| | - Y Yang
- Network Center, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Z Y Liu
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - W Wang
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - C P Guo
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - L L Dai
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory for HIV/AIDS Research, Beijing, China
| | - L J Sun
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - H Wu
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
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Yang CG, Ma CS, Fan L, Su B, Wang YX, Jiang GD, Zhou BY. [The value of left ventricular longitudinal strain in the diagnosis and differential diagnosis of myocardial amyloidosis]. Zhonghua Yi Xue Za Zhi 2020; 100:3431-3436. [PMID: 33238674 DOI: 10.3760/cma.j.cn112137-20200423-01282] [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] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the characteristics of left ventricular longitudinal strain (LS) in myocardial amyloidosis (CA), hypertrophic cardiomyopathy (HCM) and Fabry disease (FD), as well as the correlation between left ventricular LS and these diseases. Methods: A total of 14 CA patients, 28 HCM patients and 5 FD patients who visited the Department of Cardiology of the First Affiliated Hospital of Suzhou University from June 2017 to November 2019 were retrospectively included. EchoPAC software was used to analyze left ventricular LS, and univariate logistic regression analysis was used to analyze the correlation between echocardiographic LS indexes and various myocardial hypertrophy diseases. The receiver operating characteristic (ROC) curve was used to assess the sensitivity and specificity of echocardiograph LS indexes in the diagnosis of various myocardial hypertrophy diseases. Results: There were significant differences in LS of left ventricular basal segment, inferior wall, posterior wall, lateral wall and posterior septum among the three groups (P<0.05). The absolute value of LS in the left ventricular basal segment decreased in the CA group; the absolute value of LS in left ventricular posterior wall and lateral wall decreased significantly in the FD group (P<0.05); the absolute values of LS in left ventricular basal segment, inferior wall, posterior septum, lateral wall and posterior wall increased significantly in the HCM group (P<0.05). The absolute value of LS < 7.9% in the left ventricular basal segment, or > 13.2% in the inferior wall and > 9.2% in the basal segment, or < 8.3% in the lateral wall and < 7.9% in the posterior wall were the indicators of high sensitivity and specificity in the diagnosis of CA, HCM and FD, respectively. Conclusions: Left ventricular LS was an important index to differentiate myocardial hypertrophy. Combined with their respective clinical characteristics, it could provide certain reference value for clinical practice.
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Affiliation(s)
- C G Yang
- Department of Cardiovascular Medicine, the First Affiliated Hospital of Soochow University, Suzhou 215006, China (Yang Changgen is working on the Department of Critical Care Medicine, Zhejiang Provincial People's Hospital, Hangzhou 310012, China)
| | - C S Ma
- Department of Cardiovascular Medicine, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - L Fan
- Department of Cardiovascular Medicine, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - B Su
- Department of Cardiovascular Medicine, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Y X Wang
- Department of Endocrinology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - G D Jiang
- Department of Cardiovascular Medicine, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - B Y Zhou
- Department of Cardiovascular Medicine, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
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Udeh-Momoh C, Price G, Ropacki MT, Ketter N, Andrews T, Arrighi HM, Brashear HR, Robb C, Bassil DT, Cohn M, Curry LK, Su B, Perera D, Giannakopoulou P, Car J, Ward HA, Perneczky R, Novak G, Middleton L. Prospective Evaluation of Cognitive Health and Related Factors in Elderly at Risk for Developing Alzheimer's Dementia: A Longitudinal Cohort Study. J Prev Alzheimers Dis 2020; 6:256-266. [PMID: 31686098 DOI: 10.14283/jpad.2019.31] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND The CHARIOT PRO Main study is a prospective, non-interventional study evaluating cognitive trajectories in participants at the preclinical stage of Alzheimer's disease (AD) classified by risk levels for developing mild cognitive impairment due to AD (MCI-AD). OBJECTIVES The study aimed to characterize factors and markers influencing cognitive and functional progression among individuals at-risk for developing MCI-AD, and examine data for more precise predictors of cognitive change, particularly in relation to APOE ε4 subgroup. DESIGN This single-site study was conducted at the Imperial College London (ICL) in the United Kingdom. Participants 60 to 85 years of age were classified as high, medium (amnestic or non-amnestic) or low risk for developing MCI-AD based on RBANS z-scores. A series of clinical outcome assessments (COAs) on factors influencing baseline cognitive changes were collected in each of the instrument categories of cognition, lifestyle exposure, mood, and sleep. Data collection was planned to occur every 6 months for 48 months, however the median follow-up time was 18.1 months due to early termination of study by the sponsor. RESULTS 987 participants were screened, among them 690 participants were actively followed-up post baseline, of whom 165 (23.9%) were APOE ε4 carriers; with at least one copy of the allele. The mean age was 68.73 years, 94.6% were white, 57.4% were female, and 34.8% had a Family History of Dementia with a somewhat larger percentage in the APOE ε4 carrier group (42.4%) compared to the non-carrier group (32.4%). Over half of the participants were married and 53% had a Bachelor's or higher degree. Most frequently, safety events typical for this population consisted of upper respiratory tract infection (10.4%), falls (5.2%), hypertension (3.5%) and back pain (3.0%). Conclusion (clinical relevance): AD-related measures collected during the CHARIOT PRO Main study will allow identification and evaluation of AD risk factors and markers associated with cognitive performance from the pre-clinical stage. Evaluating the psycho-biological characteristics of these pre-symptomatic individuals in relation to their natural neurocognitive trajectories will enhance current understanding on determinants of the initial signs of cognitive changes linked to AD.
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Affiliation(s)
- C Udeh-Momoh
- Gerald Novak, MD, Janssen Research and Development, LLC, 1125 Trenton-Harbourton Rd., Titusville, NJ 08560, USA, Tel.:+1 609 730 4416, Fax: +1 908 730 2069,
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13
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Ding X, Zhang J, Shi M, Liu D, Zhang L, Zhang R, Su B, Ai K. High expression level of interleukin-1β is correlated with poor prognosis and PD-1 expression in patients with lung adenocarcinoma. Clin Transl Oncol 2020; 23:35-42. [PMID: 32472456 DOI: 10.1007/s12094-020-02392-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 03/18/2020] [Accepted: 05/10/2020] [Indexed: 12/25/2022]
Abstract
PURPOSE Cytokines are vital pro-inflammatory factors and involved in tumor immune infiltration, and immune infiltration is closely related to PD-1/PD-L1 blockades immunotherapy. This study aims to explore the associations between cytokines and prognosis and also PD-1/PD-L1 expression in early lung adenocarcinoma, which is seldom reported. METHODS 324 early lung adenocarcinoma patients with prior surgical resection were included and the associations between overall survival time and clinical factors and also cytokines including IL-1β, IL-6 and TNF-α were analyzed by multivariate cox regression and Kaplan-Meier curve (log-rank test). Resected tumor samples were randomly obtained to detect the PD-1/PD-L1 expression by immunohistochemistry, and Chi square test was used for relations between cytokines and PD-1/PD-L1 expression. RESULTS In this study group, 26.2% patients showed a high level of IL-1β and patients with high IL-1β level showed 19 months shortened mOS than those with normal IL-1 β expression (mOS: 24.00, 95%CI 11.98-36.02 vs 43.00, 95% CI 37.37-48.63, p = 0.017). Among detected samples, the positive rate of PD-1 was 25.0% (13/52), and the positive rate of PD-L1 was 37.3% (19/52). The positive rate of PD-1 was 36.1% higher in high-IL-1 β-level group as compared to normal-IL-1β-level group (50.0% vs 13.9%, p = 0.012). No significant association was found between IL-1 β and PD-L1 expression. CONCLUSION High expression level of IL-1β was correlated with poor prognosis and higher positive rate of PD-1 expression, which gave us insights into biomarkers of survival prediction and immunotherapy in lung adenocarcinoma. Further studies were still needed.
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Affiliation(s)
- X Ding
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, No. 507, Zhengmin Road, Shanghai, 200433, People's Republic of China
| | - J Zhang
- Department of Oncology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - M Shi
- Department of Oncology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - D Liu
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, No. 507, Zhengmin Road, Shanghai, 200433, People's Republic of China
| | - L Zhang
- Department of Pathology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - R Zhang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, No. 507, Zhengmin Road, Shanghai, 200433, People's Republic of China
| | - B Su
- Central Laboratory, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, No. 507, Zhengmin Road, Shanghai, 200433, People's Republic of China.
| | - K Ai
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, No. 507, Zhengmin Road, Shanghai, 200433, People's Republic of China.
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Jenkins J, Mantell J, Neal C, Gholinia A, Verkade P, Nobbs AH, Su B. Antibacterial effects of nanopillar surfaces are mediated by cell impedance, penetration and induction of oxidative stress. Nat Commun 2020; 11:1626. [PMID: 32242015 PMCID: PMC7118135 DOI: 10.1038/s41467-020-15471-x] [Citation(s) in RCA: 152] [Impact Index Per Article: 38.0] [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: 10/29/2019] [Accepted: 03/04/2020] [Indexed: 01/02/2023] Open
Abstract
Some insects, such as dragonflies, have evolved nanoprotrusions on their wings that rupture bacteria on contact. This has inspired the design of antibacterial implant surfaces with insect-wing mimetic nanopillars made of synthetic materials. Here, we characterise the physiological and morphological effects of mimetic titanium nanopillars on bacteria. The nanopillars induce deformation and penetration of the Gram-positive and Gram-negative bacterial cell envelope, but do not rupture or lyse bacteria. They can also inhibit bacterial cell division, and trigger production of reactive oxygen species and increased abundance of oxidative stress proteins. Our results indicate that nanopillars' antibacterial activities may be mediated by oxidative stress, and do not necessarily require bacterial lysis.
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Affiliation(s)
- J Jenkins
- Bristol Dental School, University of Bristol, Bristol, UK
| | - J Mantell
- School of Biochemistry, University of Bristol, Bristol, UK
| | - C Neal
- School of Biochemistry, University of Bristol, Bristol, UK
| | - A Gholinia
- School of Materials Science, University of Manchester, Manchester, UK
| | - P Verkade
- School of Biochemistry, University of Bristol, Bristol, UK
| | - A H Nobbs
- Bristol Dental School, University of Bristol, Bristol, UK.
| | - B Su
- Bristol Dental School, University of Bristol, Bristol, UK.
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Le TT, Bryant J, Ang B, Su B, Cook S, Chin CALVIN. P962 The Remodeling Index risk stratifies patients with hypertensive left ventricular hypertrophy. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.595] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
National Medical Research Council
BACKGROUND
Hypertensive left ventricular hypertrophy (LVH) is associated with increased cardiovascular events. The authors previously developed the Remodeling Index (RI) that incorporated LV volume and wall-thickness in a single measure of advanced hypertrophy in hypertensive patients.
PURPOSE
This study examined the mechanisms and prognostic potential of the RI in reference with current LVH classifications.
METHODS
Cardiovascular magnetic resonance (CMR) was performed in 400 asymptomatic hypertensive patients. The newly derived RI ([(EDV)^1/3]/t; where EDV is LV end-diastolic volume and t is the maximal wall thickness across 16 myocardial segments) stratified hypertensive patients into 3 groups: without LVH, LVH with normal RI (LVH_Normal-RI) and LVH with low RI (LVH_Low-RI). The primary outcome was a composite of all-cause mortality, acute coronary syndromes, strokes and decompensated heart failure.
RESULTS
LVH_Low-RI was associated with increased LV mass index, fibrosis burden, impaired myocardial function and elevated biochemical markers of myocardial injury and wall stress. Over 18.3 ± 7.0 months (601.3 patient-years), patients with LVH_Low-RI had more than a 5-fold increase in adverse events compared to those with LVH_Normal-RI (11.6 events/100patient-years versus 2.0 events/100 patient-years, respectively; log-rank P < 0.001; Figure A). The RI provided incremental prognostic value over and above a model consisting of clinical variables and LVH (P = 0.02). Conversely concentric and eccentric LVH were associated with adverse prognosis (4.5 events/100patient-years versus 6.0 events/100patient-years, respectively; log-rank P = 0.62) that was similar as the natural history of hypertensive LVH (5.1 events/100patient-years).
CONCLUSIONS
The RI provides mechanistic insights and prognostic value that improves risk-stratification of hypertensive LVH.
Abstract P962 Figure.
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Affiliation(s)
- T T Le
- National Heart Centre Singapore (NHCS), Singapore, Singapore
| | - J Bryant
- National Heart Centre Singapore (NHCS), Singapore, Singapore
| | - B Ang
- National Heart Centre Singapore (NHCS), Singapore, Singapore
| | - B Su
- National Heart Centre Singapore (NHCS), Singapore, Singapore
| | - S Cook
- National Heart Centre Singapore (NHCS), Singapore, Singapore
| | - CALVIN Chin
- National Heart Centre Singapore (NHCS), Singapore, Singapore
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Phua AIH, Tara SW, Le TT, Bryant JA, Toh DFK, Ang BWY, Su B, Cook SA, Chin CWL. P1419 Sex-related differences in cardiac remodeling in health and hypertension. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.851] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
National Medical Research Council
OnBehalf
National Heart Centre Singapore
BACKGROUND
Adverse cardiac remodelling is associated with worse cardiovascular outcomes. Development of left ventricular hypertrophy (defined as increased myocardial mass) is a complex process mediated by myocardial wall thickening and/or ventricular dilatation. Sex-related differences in the relationship between myocardial mass and wall thickening/ventricular dilatation have not been well-described.
PURPOSE
We examine differences in determinants and patterns of cardiac remodeling between males and females.
METHODS
Comprehensive cardiovascular magnetic resonance imaging was performed in 1006 participants: 316 healthy volunteers (50% males, 46 ± 14 years) and 690 asymptomatic hypertensive patients (60% males, 57 ± 11 years). Myocardial mass, ventricular volumes and maximal myocardial wall thickness (across 16 myocardial segments) were measured using standardized contouring techniques. Clinically relevant variables (age, weight, height, and adiposity) that demonstrated significant univariate association with myocardial mass (P < 0.05) were selected in the multivariable linear regression model using the forward approach.
RESULTS
Increased body weight, lower body fat composition and higher systolic blood pressures were independently associated with increased myocardial mass in healthy volunteers (males and females) and hypertensive females. In hypertensive males, only increased body weight and elevated systolic blood pressure were independently associated with increased myocardial mass.
The association between myocardial mass and ventricular volumes was almost identical between males and females (P = 0.65 for interaction; Figure). Conversely, there was a significant gender-related difference in the association between wall thickness and myocardial mass after adjusting for potential confounders (P < 0.001 for interaction). Concentric remodeling was initially more evident in males; but further with increase, myocardial mass was associated with greater concentric remodeling in females (Figure). Similar results were observed when analyses were performed separately in healthy volunteers and hypertensive patients.
CONCLUSION
There were sex-related differences in concentric remodeling at progressive stages of myocardial hypertrophy that may explain the higher prevalence of heart failure with preserved ejection fraction reported in females.
Abstract P1419 Figure
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Affiliation(s)
- A I H Phua
- Flinders University, Adelaide, Australia
| | - S W Tara
- Flinders University, Adelaide, Australia
| | - T T Le
- National Heart Centre Singapore, Singapore, Singapore
| | - J A Bryant
- National Heart Centre Singapore, Singapore, Singapore
| | - D F K Toh
- National Heart Centre Singapore, Singapore, Singapore
| | - B W Y Ang
- National Heart Centre Singapore, Singapore, Singapore
| | - B Su
- National Heart Centre Singapore, Singapore, Singapore
| | - S A Cook
- National Heart Centre Singapore, Singapore, Singapore
| | - C W L Chin
- National Heart Centre Singapore, Singapore, Singapore
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Wang W, Wang X, Ren X, Li Z, Su B, Xu Y, Xu X, Lv D, Liu W, Zhang S, Chen L, Li X. Features and clinical significance of the ossification centres in the odontoid process based on micro-computed tomography. Folia Morphol (Warsz) 2019; 79:845-850. [PMID: 31802474 DOI: 10.5603/fm.a2019.0130] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 11/21/2019] [Indexed: 11/25/2022]
Abstract
BACKGROUND Microscopic structures of the ossification centres of the odontoid process were studied from the micro-computed tomography (CT) images of the axis, and the potential influence of the ossification centres with different microscopic structures on odontoid process fractures was analysed. MATERIALS AND METHODS Eighteen odontoid process specimens were randomly collected and scanned by micro-CT. The obtained images were then input into the software for further observation and measurement. Incomplete absorption of the ossification centres in the base was observed, along with the anatomic structure of the regions with incomplete ossification and structural parameters of the trabecular bones. RESULTS The microscopic structures of the trabecular bones in the ossification centres in the base of the odontoid process could be clearly visualised from the micro-CT images. Among the 18 odontoid process specimens, 11 specimens were found with incomplete absorption of the ossification centres in the axis, the prevalence reaching up to 61%. Regions with incomplete ossification varied in size and morphology, and their three-dimensional morphology was predominantly oval. Of all structural parameters examined for the trabecular bones, there were only significant differences in the degree of anisotropy between the regions with incomplete absorption of ossification centres and the average vertebral trabecular bones (p < 0.05). CONCLUSIONS Incomplete absorption of the ossification centres in the base of the odontoid process is a relatively prevalent condition. The cavitation effect of the trabecular bones may be the primary cause for odontoid process fractures.
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Tan Y, Su B, Cai X, Guan P, Liu X, Ma P, Zhou H, Liu J, Pang Y. An automated smear microscopy system to diagnose tuberculosis in a high-burden setting. Clin Microbiol Infect 2019; 25:1553-1559. [DOI: 10.1016/j.cmi.2019.04.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/27/2019] [Accepted: 04/29/2019] [Indexed: 10/26/2022]
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Dunseath O, Smith EJW, Al-Jeda T, Smith JA, King S, May PW, Nobbs AH, Hazell G, Welch CC, Su B. Studies of Black Diamond as an antibacterial surface for Gram Negative bacteria: the interplay between chemical and mechanical bactericidal activity. Sci Rep 2019; 9:8815. [PMID: 31217508 PMCID: PMC6584650 DOI: 10.1038/s41598-019-45280-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 06/04/2019] [Indexed: 01/19/2023] Open
Abstract
'Black silicon' (bSi) samples with surfaces covered in nanoneedles of length ~5 µm were fabricated using a plasma etching process and then coated with a conformal uniform layer of diamond using hot filament chemical vapour deposition to produce 'black diamond' (bD) nanostructures. The diamond needles were then chemically terminated with H, O, NH2 or F using plasma treatment, and the hydrophilicity of the resulting surfaces were assessed using water droplet contact-angle measurements, and scaled in the order O > H ≈NH2 >F, with the F-terminated surface being superhydrophobic. The effectiveness of these differently terminated bD needles in killing the Gram-negative bacterium E. coli was semi-quantified by Live/Dead staining and fluorescence microscopy, and visualised by environmental scanning electron microscopy. The total number of adhered bacteria was consistent for all the nanostructured bD surfaces at around 50% of the value for the flat diamond control. This, combined with a chemical bactericidal effect of 20-30%, shows that the nanostructured bD surfaces supported significantly fewer viable E. coli than flat surfaces. Moreover, the bD surfaces were particularly effective at preventing the establishment of bacterial aggregates - a precursor to biofilm formation. The percentage of dead bacteria also decreased as a function of hydrophilicity. These results are consistent with a predominantly mechanical mechanism for bacteria death based on the stretching and disruption of the cell membrane, combined with an additional effect from the chemical nature of the surface.
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Affiliation(s)
- O Dunseath
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, United Kingdom
| | - E J W Smith
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, United Kingdom
| | - T Al-Jeda
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, United Kingdom
| | - J A Smith
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, United Kingdom
| | - S King
- Bristol Dental School, University of Bristol, Lower Maudlin Street, Bristol, BS1 2LY, United Kingdom
| | - P W May
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, United Kingdom.
| | - A H Nobbs
- Bristol Dental School, University of Bristol, Lower Maudlin Street, Bristol, BS1 2LY, United Kingdom
| | - G Hazell
- Bristol Dental School, University of Bristol, Lower Maudlin Street, Bristol, BS1 2LY, United Kingdom
| | - C C Welch
- Oxford Instruments Plasma Technology, Yatton, Bristol, BS49 4AP, United Kingdom
| | - B Su
- Bristol Dental School, University of Bristol, Lower Maudlin Street, Bristol, BS1 2LY, United Kingdom
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20
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Zhang J, Ding X, Zhang L, Su B. P3.12-09 Smad4 Mutation Confers Acquired Neuroendocrine Phenotype in Transformation of Lung Adenocarcinoma to Small Cell Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1832] [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: 10/28/2022]
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21
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Yeow CES, Cai J, Le TT, Bryant JA, Su B, Chin CWL. P3696Determinants of left ventricular trabeculations in hypertensive patients. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3696] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- C E S Yeow
- Royal College of Surgeons in Ireland, Dublin, Ireland
| | - J Cai
- National Heart Centre Singapore, Singapore, Singapore
| | - T T Le
- National Heart Centre Singapore, Singapore, Singapore
| | - J A Bryant
- National Heart Centre Singapore, Singapore, Singapore
| | - B Su
- National Heart Centre Singapore, Singapore, Singapore
| | - C W L Chin
- National Heart Centre Singapore, Singapore, Singapore
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22
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Jin L, Cheng XL, Qin YZ, Su B. [Analysis of the influential factors of late diagnosis among newly identified HIV/AIDS cases in Anhui Province, 2011-2015]. Zhonghua Yu Fang Yi Xue Za Zhi 2018; 52:415-418. [PMID: 29614610 DOI: 10.3760/cma.j.issn.0253-9624.2018.04.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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 analyze the base situation and influential factors of late diagnosis among newly identified HIV/AIDS cases in Anhui Province from 2011 to 2015. Methods: Database information of the newly identified HIV/AIDS cases in Anhui Province from 2011 to 2015 were downloaded from the National HIV/AIDS Comprehensive Information System of China's disease prevention and control information system. To analyze the data including basic information, sample source, route of HIV transmission, population mobility, venereal disease, death and first CD4 count; and the number of 7 073 cases were classified according to late diagnosis and non-late diagnosis criteria. The Chi-square test and logistic regression analysis were used to analyze the influential factors of HIV late diagnosis. Results: A total of 7 073 newly identified HIV/AIDS cases were analyzed, and the mean age was (38.5±15.0) years. The proportion of late diagnosis in all counted cases was 41.7% (2 949/7 073); from 2011 to 2015, the proportions of late diagnosis were 59.7% (485/812), 46.5% (531/1 141), 42.7% (587/1 376), 36.1% (609/1 686), and 35.8% (737/2 058), respectively. Compared with the 0 to 19 years group, the 40 to 59 years group and over 60 years old group have higher risk of late diagnosis (OR=2.68, 95%CI: 1.94-3.71; OR=2.18, 95%CI: 1.53-3.10, respectively). Compared with the high education group, the illiterate and primary school education group have higher risk of late diagnosis (OR=1.74, 95%CI: 1.36-2.22; OR=1.64, 95%CI: 1.34-2.01, respectively). Compared with other sample sources, medical institutions have higher risk of late diagnosis (OR=2.64, 95%CI: 2.28-3.05). Compared with migrant population, the resident population have higher risk of late diagnosis (OR=1.80, 95%CI: 1.53-2.11). Conclusion: The proportion of late diagnosis among newly identified HIV/AIDS cases in Anhui province was relatively high from 2011 to 2015. The main risk factors of late diagnosis included cases reported by medical institutions, resident population, over 40 years old age group and low education level.
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Affiliation(s)
- L Jin
- AIDS Department of Anhui Provincial Center for Disease Control and Prevention, Hefei 230601, China
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Abstract
'Black silicon' (bSi) samples with surfaces covered in nanoneedles of varying length, areal density and sharpness, have been fabricated using a plasma etching process. These nanostructures were then coated with a conformal uniform layer of diamond using hot filament chemical vapour deposition to produce 'black diamond' (bD) surfaces. The effectiveness of these bSi and bD surfaces in killing Gram-negative (E. coli) and Gram-positive (S. gordonii) bacteria was investigated by culturing the bacteria on the surfaces for a set time and then measuring the live-to-dead ratio. All the nanostructured surfaces killed E. coli at a significantly higher rate than the respective flat Si or diamond control samples. The length of the needles was found to be less important than their separation, i.e. areal density. This is consistent with a model for mechanical bacteria death based on the stretching and disruption of the cell membrane, enhanced by the cells motility on the surfaces. In contrast, S. gordonii were unaffected by the nanostructured surfaces, possibly due to their smaller size, thicker cell membrane and/or their lack of motility.
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Affiliation(s)
- G Hazell
- Bristol Dental School, University of Bristol, Lower Maudlin Street, Bristol, BS1 2LY, UK
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24
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Gong L, Song DD, Wu JB, Cao MH, Su B, Sun Y, Lyu Y, Zhang L, Wang F, He YX, Wang JS. Human-to-human transmissions of severe fever with thrombocytopenia syndrome virus in Anhui province, 2010-2017. Clin Microbiol Infect 2018; 24:920-922. [PMID: 29559391 DOI: 10.1016/j.cmi.2018.03.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 03/10/2018] [Accepted: 03/10/2018] [Indexed: 11/30/2022]
Affiliation(s)
- L Gong
- Anhui Provincial Center for Disease Control and Prevention, Anhui, China.
| | - D D Song
- Anhui Provincial Center for Disease Control and Prevention, Anhui, China
| | - J B Wu
- Anhui Provincial Center for Disease Control and Prevention, Anhui, China
| | - M H Cao
- Anhui Provincial Center for Disease Control and Prevention, Anhui, China
| | - B Su
- Anhui Provincial Center for Disease Control and Prevention, Anhui, China
| | - Y Sun
- Anhui Provincial Center for Disease Control and Prevention, Anhui, China
| | - Y Lyu
- Lu'an Municipal Center for Disease Control and Prevention, Lu'an, China
| | - L Zhang
- Hefei Municipal Center for Disease Control and Prevention, Hefei, China
| | - F Wang
- Wuhu Municipal Center for Disease Control and Prevention, Wuhu, China
| | - Y X He
- Tongling Municipal Center for Disease Control and Prevention, Tongling, China
| | - J S Wang
- Anqing Municipal Center for Disease Control and Prevention, Anqing, China
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Chambers C, Stewart S, Su B, Jenkinson H, Sandy J, Ireland A. Silver doped titanium dioxide nanoparticles as antimicrobial additives to dental polymers. Dent Mater 2017; 33:e115-e123. [DOI: 10.1016/j.dental.2016.11.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Revised: 10/25/2016] [Accepted: 11/17/2016] [Indexed: 10/20/2022]
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27
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May PW, Clegg M, Silva TA, Zanin H, Fatibello-Filho O, Celorrio V, Fermin DJ, Welch CC, Hazell G, Fisher L, Nobbs A, Su B. Diamond-coated 'black silicon' as a promising material for high-surface-area electrochemical electrodes and antibacterial surfaces. J Mater Chem B 2016; 4:5737-5746. [PMID: 32263865 DOI: 10.1039/c6tb01774f] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
This report describes a method to fabricate high-surface-area boron-doped diamond (BDD) electrodes using so-called 'black silicon' (bSi) as a substrate. This is a synthetic nanostructured material that contains high-aspect-ratio nano-protrusions, such as spikes or needles, on the Si surface produced via plasma etching. We now show that coating a bSi surface composed of 15 μm-high needles conformably with BDD produces a robust electrochemical electrode with high sensitivity and high electroactive area. A clinically relevant demonstration of the efficacy of these electrodes is shown by measuring their sensitivity for detection of dopamine (DA) in the presence of an excess of uric acid (UA). Finally, the nanostructured surface of bSi has recently been found to generate a mechanical bactericidal effect, killing both Gram-negative and Gram-positive bacteria at high rates. We will show that BDD-coated bSi also acts as an effective antibacterial surface, with the added advantage that being diamond-coated it is far more robust and less likely to become damaged than Si.
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Affiliation(s)
- P W May
- School of Chemistry, University of Bristol, Bristol BS8 1TS, UK.
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28
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Zhang XH, Geng GL, Su B, Liang CP, Wang F, Bao JC. MicroRNA-338-3p inhibits glucocorticoid-induced osteoclast formation through RANKL targeting. Genet Mol Res 2016; 15:gmr7674. [PMID: 27706599 DOI: 10.4238/gmr.15037674] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The differentiation deficiencies of osteoclast precursors (pre-OCs) may contribute to osteoporosis. Research on osteoporosis has recently focused on microRNAs (miRNAs) that play crucial roles in pre-OC differentiation. In the current study, we aimed to analyze the expression and function of the glucocorticoid (GC)-associated miRNA-338-3p (miR-338-3p) in osteoclast formation. We found that dexamethasone induced osteoclast differentiation and inhibited miR-338-3p expression. Overexpression of an miR-338-3p mimic in osteoclast precursor cells attenuated GC-induced osteoclast formation and bone resorption, whereas inhibition of miR-338-3p reversed these effects. The expression of the nuclear factor κB ligand RANKL, a potential target gene of miR-338-3p, was inversely correlated with miR-338-3p expression in pre-OCs. Furthermore, we demonstrated that RANKL was directly regulated by miR-338-3p and re-introduction of RANKL reversed the inhibitory effects of miR-338-3p on osteoclast formation and bone resorption. Taken together, these findings demonstrate that miR-338-3p may play a significant role in GC-induced osteoclast differentiation and function by targeting RANKL in osteoclasts.
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Affiliation(s)
- X H Zhang
- Department of Physical Therapy, Wuxi Tongren International Rehabilitation Hospital, Wuxi, Jiangsu, China
| | - G L Geng
- School of Nursing, Nantong University, Nantong, Jiangsu, China
| | - B Su
- Department of Physical Therapy, Wuxi Tongren International Rehabilitation Hospital, Wuxi, Jiangsu, China
| | - C P Liang
- Department of Physical Therapy, Wuxi Tongren International Rehabilitation Hospital, Wuxi, Jiangsu, China
| | - F Wang
- Department of Physical Therapy, Wuxi Tongren International Rehabilitation Hospital, Wuxi, Jiangsu, China
| | - J C Bao
- Department of Rehabilitation, Wuxi Tongren International Rehabilitation Hospital, Wuxi, Jiangsu, China
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Jin Y, Zhou T, Geng X, Liu S, Chen A, Yao J, Jiang C, Tan S, Su B, Liu Z. A genome-wide association study of heat stress-associated SNPs in catfish. Anim Genet 2016; 48:233-236. [PMID: 27476875 DOI: 10.1111/age.12482] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2016] [Indexed: 10/21/2022]
Abstract
Heat tolerance is a complex and economically important trait for catfish genetic breeding programs. With global climate change, it is becoming an increasingly important trait. To better understand the molecular basis of heat stress, a genome-wide association study (GWAS) was carried out using the 250 K catfish SNP array with interspecific backcross progenies, which derived from crossing female channel catfish with male F1 hybrid catfish (female channel catfish × male blue catfish). Three significant associated SNPs were detected by performing an EMMAX approach for GWAS. The SNP located on linkage group 14 explained 12.1% of phenotypical variation. The other two SNPs, located on linkage group 16, explained 11.3 and 11.5% of phenotypical variation respectively. A total of 14 genes with heat stress related functions were detected within the significant associated regions. Among them, five genes-TRAF2, FBXW5, ANAPC2, UBR1 and KLHL29- have known functions in the protein degradation process through the ubiquitination pathway. Other genes related to heat stress include genes involved in protein biosynthesis (PRPF4 and SYNCRIP), protein folding (DNAJC25), molecule and iron transport (SLC25A46 and CLIC5), cytoskeletal reorganization (COL12A1) and energy metabolism (COX7A2, PLCB1 and PLCB4) processes. The results provide fundamental information about genes and pathways that is useful for further investigation into the molecular mechanisms of heat stress. The associated SNPs could be promising candidates for selecting heat-tolerant catfish lines after validating their effects on larger and various catfish populations.
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Affiliation(s)
- Y Jin
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences and Program of Cell and Molecular Biosciences, Aquatic Genomics Unit, Auburn University, Auburn, AL, 36849, USA
| | - T Zhou
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences and Program of Cell and Molecular Biosciences, Aquatic Genomics Unit, Auburn University, Auburn, AL, 36849, USA
| | - X Geng
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences and Program of Cell and Molecular Biosciences, Aquatic Genomics Unit, Auburn University, Auburn, AL, 36849, USA
| | - S Liu
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences and Program of Cell and Molecular Biosciences, Aquatic Genomics Unit, Auburn University, Auburn, AL, 36849, USA
| | - A Chen
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences and Program of Cell and Molecular Biosciences, Aquatic Genomics Unit, Auburn University, Auburn, AL, 36849, USA
| | - J Yao
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences and Program of Cell and Molecular Biosciences, Aquatic Genomics Unit, Auburn University, Auburn, AL, 36849, USA
| | - C Jiang
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences and Program of Cell and Molecular Biosciences, Aquatic Genomics Unit, Auburn University, Auburn, AL, 36849, USA
| | - S Tan
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences and Program of Cell and Molecular Biosciences, Aquatic Genomics Unit, Auburn University, Auburn, AL, 36849, USA
| | - B Su
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences and Program of Cell and Molecular Biosciences, Aquatic Genomics Unit, Auburn University, Auburn, AL, 36849, USA
| | - Z Liu
- The Fish Molecular Genetics and Biotechnology Laboratory, School of Fisheries, Aquaculture and Aquatic Sciences and Program of Cell and Molecular Biosciences, Aquatic Genomics Unit, Auburn University, Auburn, AL, 36849, USA
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Simon AL, Su B, Demko Z, Rabinowitz M, Harmon ER, Gross SJ. Detection of complete molar pregnancy by single-nucleotide polymorphism-based non-invasive prenatal testing. Ultrasound Obstet Gynecol 2015; 46:506-507. [PMID: 25810270 DOI: 10.1002/uog.14854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 03/05/2015] [Accepted: 03/17/2015] [Indexed: 06/04/2023]
Affiliation(s)
- A L Simon
- Natera, Inc., 201 Industrial Road, Suite 410, San Carlos, CA, 94070, USA
| | - B Su
- Natera, Inc., 201 Industrial Road, Suite 410, San Carlos, CA, 94070, USA
| | - Z Demko
- Natera, Inc., 201 Industrial Road, Suite 410, San Carlos, CA, 94070, USA
| | - M Rabinowitz
- Natera, Inc., 201 Industrial Road, Suite 410, San Carlos, CA, 94070, USA
| | | | - S J Gross
- Natera, Inc., 201 Industrial Road, Suite 410, San Carlos, CA, 94070, USA
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Zhao X, Fu J, Xu A, Yu L, Zhu J, Dai R, Su B, Luo T, Li N, Qin W, Wang B, Jiang J, Li S, Chen Y, Wang H. Gankyrin drives malignant transformation of chronic liver damage-mediated fibrosis via the Rac1/JNK pathway. Cell Death Dis 2015; 6:e1751. [PMID: 25950481 PMCID: PMC4669699 DOI: 10.1038/cddis.2015.120] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 03/17/2015] [Accepted: 03/24/2015] [Indexed: 02/07/2023]
Abstract
Hepatocarcinogenesis is a complex process involving chronic liver injury, inflammation, unregulated wound healing, subsequent fibrosis and carcinogenesis. To decipher the molecular mechanism underlying transition from chronic liver injury to dysplasia, we investigated the oncogenic role of gankyrin (PSMD10 or p28GANK) during malignant transformation in a transgenic mouse model. Here, we find that gankyrin increased in patients with cirrhosis. In addition to more severe liver fibrosis and tumorigenesis after DEN plus CCl4 treatment, hepatocyte-specific gankyrin-overexpressing mice (gankyrinhep) exhibited malignant transformation from liver fibrosis to tumors even under single CCl4 administration, whereas wild-type mice merely experienced fibrosis. Consistently, enhanced hepatic injury, severe inflammation and strengthened compensatory proliferation occurred in gankyrinhep mice during CCl4 performance. This correlated with augmented expressions of cell cycle-related genes and abnormal activation of Rac1/c-jun N-terminal kinase (JNK). Pharmacological inhibition of the Rac1/JNK pathway attenuated hepatic fibrosis and prevented CCl4-induced carcinogenesis in gankyrinhep mice. Together, these findings suggest that gankyrin promotes liver fibrosis/cirrhosis progression into hepatocarcinoma relying on a persistent liver injury and inflammatory microenvironment. Blockade of Rac1/JNK activation impeded gankyrin-mediated hepatocytic malignant transformation, indicating the combined inhibition of gankyrin and Rac1/JNK as a potential prevention mechanism for cirrhosis transition.
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Affiliation(s)
- X Zhao
- 1] Model Animal Research Center and MOE Key Laboratory of Model Animal for Disease Study, Nanjing University, Nanjing 210061, China [2] International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute/Hospital, Shanghai 200438, China
| | - J Fu
- 1] International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute/Hospital, Shanghai 200438, China [2] National Center for Liver Cancer, Shanghai 200438, China
| | - A Xu
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute/Hospital, Shanghai 200438, China
| | - L Yu
- 1] International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute/Hospital, Shanghai 200438, China [2] National Center for Liver Cancer, Shanghai 200438, China
| | - J Zhu
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute/Hospital, Shanghai 200438, China
| | - R Dai
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute/Hospital, Shanghai 200438, China
| | - B Su
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute/Hospital, Shanghai 200438, China
| | - T Luo
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute/Hospital, Shanghai 200438, China
| | - N Li
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute/Hospital, Shanghai 200438, China
| | - W Qin
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute/Hospital, Shanghai 200438, China
| | - B Wang
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute/Hospital, Shanghai 200438, China
| | - J Jiang
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute/Hospital, Shanghai 200438, China
| | - S Li
- MOE Key Laboratory of Bioinformatics and Bioinformatics Division, TNLIST, Department of Antomation, Tsinghua University, Beijing 100084, China
| | - Y Chen
- 1] International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute/Hospital, Shanghai 200438, China [2] National Center for Liver Cancer, Shanghai 200438, China
| | - H Wang
- 1] Model Animal Research Center and MOE Key Laboratory of Model Animal for Disease Study, Nanjing University, Nanjing 210061, China [2] International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute/Hospital, Shanghai 200438, China [3] National Center for Liver Cancer, Shanghai 200438, China [4] State Key Laboratory of Oncogenes and Related Genes, Cancer Institute of Renji Hospital, Shanghai Jiaotong University, Shanghai 200032, China
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Petrini M, Ferrante M, Trentini P, Spoto G, Su B. Influence of alumina particles in the production of biomimetic composites. Minerva Stomatol 2014; 63:315-324. [PMID: 25308569] [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: 06/04/2023]
Abstract
AIM The aim of the work was to evaluate the influence of the filler size and shape in the final architecture of biomimetic composite produced through the freeze casting technique. METHODS Different samples of ceramic infiltrated with resin, composed by a different ratio between RonaFlair White Sapphire aluminium oxide powder - EMD Chemicals/Rona Gibbstown, USA (platelet-like morphology and average particle size <16 µm) and Almatis alumina filler ‑ CT3000SG, Almatis, USA (average particle size of 0.8 µm) have been produced. The samples have been then characterized through thermal analysis and calorimetry (Model TG/DT A 6300, Seiko Instruments USA Inc. Torrance, CA, USA), scanning electron microscopy (Phenom-World BV, Eindhoven, The Netherlands), and optical microscope (Nikon Eclipse E600 microscope). Moreover the percentage of shrinkage after the ceramic sintering have been measured through a digital calibre (Mitutoyo USA, Aurora, IL, USA). Four different groups have been considered: Group 1 (10R): 10% RonaFlair- 90% Almitas; Group 2 (20R): 20% RonaFlair- 80% Almitas; Group 3 (40R): 40% RonaFlair- 60% Almitas; Group 4 (60R): 60% RonaFlair- 40% Almitas. RESULTS Optical microscope and SEM observations have confirmed that all samples were characterized by a biomimetic hierarchic structure. For what concerning the average thickness of lamellae measured at 4 and 8 mm from the cooling plate, samples 10R were characterized by higher thickness at both levels. The measured parameter indeed decreases with the increment of the percentage of RonaFlair in the slurry composition. On the contrary the distance between lamellae (wavelength), was characterized by an opposite trend. The measurement of the diameters of the samples after the sintering process through a digital calibre has shown that 10R and 20R samples were characterized by a constant shrinkage in all the samples. On the contrary, groups 40R and 60R were distorted and were characterized by a higher diameter at the bottom respect the upper portion of the samples. Indeed these samples were characterized in the bottom by a greater amount of particles, both Almatis than RonaFlair ones. We have supposed that gravity force, during the freeze casting process, tended to push down in the lower layers all heaviest particles and then the lightest ones have occupied the spaces they have left. Consequently in upper layers there were only few particles so during the sintering process were characterized by the higher shrinkage. This phenomenon was limited in samples 10R and 20R because the percentage of greatest particle was so much inferior that their position was not influential. CONCLUSION The present study has shown that samples composed by a higher percentage of RonaFlair, were characterized by a higher distortion after sintherization; the cause of this phenomenon could be the different sedimentation process that characterizes particles of different weight and size.
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Affiliation(s)
- M Petrini
- Dental Materials Laboratory Department of Medical, Oral and Biotechnological Sciences, University of Chieti, Chieti, Italy -
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Hutson AM, Liu Z, Kucuktas H, Umali-Maceina G, Su B, Dunham RA. Quantitative trait loci map for growth and morphometric traits using a channel catfish × blue catfish interspecific hybrid system1. J Anim Sci 2014; 92:1850-65. [DOI: 10.2527/jas.2013-7191] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [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)
- A. M. Hutson
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL 36849
| | - Z. Liu
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL 36849
| | - H. Kucuktas
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL 36849
| | - G. Umali-Maceina
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL 36849
| | - B. Su
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL 36849
| | - R. A. Dunham
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL 36849
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Li M, Luo XJ, Rietschel M, Lewis CM, Mattheisen M, Müller-Myhsok B, Jamain S, Leboyer M, Landén M, Thompson PM, Cichon S, Nöthen MM, Schulze TG, Sullivan PF, Bergen SE, Donohoe G, Morris DW, Hargreaves A, Gill M, Corvin A, Hultman C, Toga AW, Shi L, Lin Q, Shi H, Gan L, Meyer-Lindenberg A, Czamara D, Henry C, Etain B, Bis JC, Ikram MA, Fornage M, Debette S, Launer LJ, Seshadri S, Erk S, Walter H, Heinz A, Bellivier F, Stein JL, Medland SE, Arias Vasquez A, Hibar DP, Franke B, Martin NG, Wright MJ, Su B. Allelic differences between Europeans and Chinese for CREB1 SNPs and their implications in gene expression regulation, hippocampal structure and function, and bipolar disorder susceptibility. Mol Psychiatry 2014; 19:452-61. [PMID: 23568192 PMCID: PMC3937299 DOI: 10.1038/mp.2013.37] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [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] [Received: 11/14/2012] [Revised: 01/28/2013] [Accepted: 03/06/2013] [Indexed: 02/07/2023]
Abstract
Bipolar disorder (BD) is a polygenic disorder that shares substantial genetic risk factors with major depressive disorder (MDD). Genetic analyses have reported numerous BD susceptibility genes, while some variants, such as single-nucleotide polymorphisms (SNPs) in CACNA1C have been successfully replicated, many others have not and subsequently their effects on the intermediate phenotypes cannot be verified. Here, we studied the MDD-related gene CREB1 in a set of independent BD sample groups of European ancestry (a total of 64,888 subjects) and identified multiple SNPs significantly associated with BD (the most significant being SNP rs6785[A], P=6.32 × 10(-5), odds ratio (OR)=1.090). Risk SNPs were then subjected to further analyses in healthy Europeans for intermediate phenotypes of BD, including hippocampal volume, hippocampal function and cognitive performance. Our results showed that the risk SNPs were significantly associated with hippocampal volume and hippocampal function, with the risk alleles showing a decreased hippocampal volume and diminished activation of the left hippocampus, adding further evidence for their involvement in BD susceptibility. We also found the risk SNPs were strongly associated with CREB1 expression in lymphoblastoid cells (P<0.005) and the prefrontal cortex (P<1.0 × 10(-6)). Remarkably, population genetic analysis indicated that CREB1 displayed striking differences in allele frequencies between continental populations, and the risk alleles were completely absent in East Asian populations. We demonstrated that the regional prevalence of the CREB1 risk alleles in Europeans is likely caused by genetic hitchhiking due to natural selection acting on a nearby gene. Our results suggest that differential population histories due to natural selection on regional populations may lead to genetic heterogeneity of susceptibility to complex diseases, such as BD, and explain inconsistencies in detecting the genetic markers of these diseases among different ethnic populations.
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Affiliation(s)
- M Li
- 1] State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China [2] University of Chinese Academy of Sciences, Beijing, China
| | - X-J Luo
- University of Rochester Flaum Eye Institute, University of Rochester, Rochester, NY, USA
| | - M Rietschel
- 1] Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim/University of Heidelberg, Mannheim, Germany [2] Department of Psychiatry, University of Bonn, Bonn, Germany
| | - C M Lewis
- MRC SGDP Centre, Institute of Psychiatry, King's College London, London, UK
| | - M Mattheisen
- Channing Laboratory, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | | | - S Jamain
- 1] Inserm U 955, IMRB, Psychiatrie Génétique, Créteil, France [2] Fondation Fondamental, Créteil, France
| | - M Leboyer
- 1] Inserm U 955, IMRB, Psychiatrie Génétique, Créteil, France [2] Fondation Fondamental, Créteil, France [3] Pôle de Psychiatrie, AP-HP, Hôpital H. Mondor-A. Chenevier, Créteil, France [4] Faculté de Médecine, Université Paris Est, Créteil, France
| | - M Landén
- 1] Section of Psychiatry and Neurochemistry, Sahlgrenska Academy at Gothenburg University, Gothenburg, Sweden [2] Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden
| | - P M Thompson
- Imaging Genetics Center, Laboratory of Neuro Imaging, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - S Cichon
- 1] Institute of Neuroscience and Medicine (INM-1), Research Center Juelich, Juelich, Germany [2] Department of Genomics, Life and Brain Center and Institute of Human Genetics, University of Bonn, Bonn, Germany
| | - M M Nöthen
- 1] Department of Genomics, Life and Brain Center and Institute of Human Genetics, University of Bonn, Bonn, Germany [2] German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - T G Schulze
- 1] Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim/University of Heidelberg, Mannheim, Germany [2] Section on Psychiatric Genetics, Department of Psychiatry and Psychotherapy, University Medical Center, Georg-August-University, Göttingen, Germany
| | - P F Sullivan
- Departments of Genetics, Psychiatry and Epidemiology, University of North Carolina, Chapel Hill, NC, USA
| | - S E Bergen
- 1] Psychiatric and Neurodevelopmental Genetics Unit, Massachusetts General Hospital, Boston, MA, USA [2] Stanley Center for Psychiatric Research, Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - G Donohoe
- Neuropsychiatric Genetics Group and Department of Psychiatry, Institute of Molecular Medicine and Trinity College Institute of Neuroscience, Trinity College Dublin, St James Hospital, Dublin, Ireland
| | - D W Morris
- Neuropsychiatric Genetics Group and Department of Psychiatry, Institute of Molecular Medicine and Trinity College Institute of Neuroscience, Trinity College Dublin, St James Hospital, Dublin, Ireland
| | - A Hargreaves
- Neuropsychiatric Genetics Group and Department of Psychiatry, Institute of Molecular Medicine and Trinity College Institute of Neuroscience, Trinity College Dublin, St James Hospital, Dublin, Ireland
| | - M Gill
- Neuropsychiatric Genetics Group and Department of Psychiatry, Institute of Molecular Medicine and Trinity College Institute of Neuroscience, Trinity College Dublin, St James Hospital, Dublin, Ireland
| | - A Corvin
- Neuropsychiatric Genetics Group and Department of Psychiatry, Institute of Molecular Medicine and Trinity College Institute of Neuroscience, Trinity College Dublin, St James Hospital, Dublin, Ireland
| | - C Hultman
- Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden
| | - A W Toga
- Imaging Genetics Center, Laboratory of Neuro Imaging, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - L Shi
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Q Lin
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - H Shi
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - L Gan
- University of Chinese Academy of Sciences, Beijing, China
| | - A Meyer-Lindenberg
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, University of Heidelberg, Mannheim, Germany
| | - D Czamara
- Max Planck Institute of Psychiatry, Munich, Germany
| | - C Henry
- 1] Inserm U 955, IMRB, Psychiatrie Génétique, Créteil, France [2] Fondation Fondamental, Créteil, France [3] Pôle de Psychiatrie, AP-HP, Hôpital H. Mondor-A. Chenevier, Créteil, France [4] Faculté de Médecine, Université Paris Est, Créteil, France
| | - B Etain
- 1] Inserm U 955, IMRB, Psychiatrie Génétique, Créteil, France [2] Fondation Fondamental, Créteil, France [3] Pôle de Psychiatrie, AP-HP, Hôpital H. Mondor-A. Chenevier, Créteil, France
| | - J C Bis
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle, WA, USA
| | - M A Ikram
- 1] Department of Radiology and Epidemiology, Erasmus MC University Medical Center, Rotterdam, The Netherlands [2] The Netherlands Consortium of Healthy Aging, Leiden, The Netherlands
| | - M Fornage
- Brown Foundation Institute of Molecular Medicine and Human Genetics Center School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - S Debette
- 1] Department of Neurology, Boston University School of Medicine, Boston, MA, USA [2] Institut National de la Santé et de la Recherche Médicale (INSERM), U708, Neuroepidemiology, Paris, France [3] Department of Epidemiology, University of Versailles Saint-Quentin-en-Yvelines, Paris, France
| | - L J Launer
- Laboratory of Neurogenetics, Intramural Research Program, National Institute of Aging, NIH, Bethesda, MD, USA
| | - S Seshadri
- 1] Department of Neurology, Boston University School of Medicine, Boston, MA, USA [2] The National, Heart, Lung and Blood Institute's Framingham Heart Study, Framingham, MA, USA
| | - S Erk
- 1] Department of Psychiatry, Charité Universitätsmedizin Berlin, Berlin, Germany [2] Division of Mind and Brain Research, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - H Walter
- 1] Department of Psychiatry, University of Bonn, Bonn, Germany [2] Department of Psychiatry, Charité Universitätsmedizin Berlin, Berlin, Germany [3] Division of Mind and Brain Research, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - A Heinz
- Department of Psychiatry, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - F Bellivier
- 1] Inserm U 955, IMRB, Psychiatrie Génétique, Créteil, France [2] Fondation Fondamental, Créteil, France [3] AP-HP, Hôpital St-Louis-Lariboisière-F Widal, Service Universitaire de Psychiatrie, Paris, France [4] Faculté de Médecine, Université Denis Diderot, Paris, France
| | - J L Stein
- 1] Imaging Genetics Center, Laboratory of Neuro Imaging, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA [2] Neurogenetics Program, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - S E Medland
- 1] Genetic Epidemiology Laboratory, Queensland Institute of Medical Research, Brisbane, QLD, Australia [2] Quantitative Genetics Laboratory, Queensland Institute of Medical Research, Brisbane, QLD, Australia [3] Broad Institute of Harvard and MIT, Boston, MA, USA
| | - A Arias Vasquez
- 1] Department of Human Genetics, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands [2] Department of Psychiatry, Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - D P Hibar
- Imaging Genetics Center, Laboratory of Neuro Imaging, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - B Franke
- 1] Department of Human Genetics, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands [2] Department of Psychiatry, Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - N G Martin
- Genetic Epidemiology Laboratory, Queensland Institute of Medical Research, Brisbane, QLD, Australia
| | - M J Wright
- Genetic Epidemiology Laboratory, Queensland Institute of Medical Research, Brisbane, QLD, Australia
| | - B Su
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
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Zhang X, Brooks B, Molyneaux L, Landy E, Banatwalla R, Wu T, Wong J, Su B, Yue DK. Dipeptidyl peptidase-4 inhibitors as a third-line oral antihyperglycaemic agent in patients with type 2 diabetes mellitus: the impact of ethnicity. Int J Endocrinol 2014; 2014:354040. [PMID: 25180036 PMCID: PMC4142741 DOI: 10.1155/2014/354040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 07/21/2014] [Accepted: 07/23/2014] [Indexed: 11/24/2022] Open
Abstract
Aims. The aim of this study is to examine the efficacy of adding a dipeptidyl peptidase-4 (DPP-4) inhibitor to patients with type 2 diabetes inadequately controlled by metformin and sulphonylurea combination treatment. The response of Asian and non-Asian patients to this regimen was also examined. Methods. The medical and computerized records of 80 patients were examined. These patients had baseline HbA1c levels ranging from 7.0 to 12.5% and had a DPP-4 inhibitor add-on therapy for a minimum period of 12 weeks. The primary endpoint was the change in HbA1c level before and after DPP-4 inhibitor treatment. Results. During oral triple therapy, there was a reduction of HbA1c from 8.3% (7.7-8.9) to 7.2% (6.8-7.6) and 26 patients (32.5%) achieved an HbA1c <7%. Poor baseline glycaemic control, lower BMI, and younger age were associated with a better response, but duration of diabetes and gender did not affect outcome. The HbA1c reduction was not different between Asians and non-Asians group [-1.00% (0.6-1.3) vs -0.90% (0.4-1.6)]. Conclusions. DPP-4 inhibitor as a third-line add-on therapy can achieve significant glycaemic improvement in patients with type 2 diabetes inadequately controlled on the combination of metformin and sulphonylurea. The improvement in HbA1c was similar between Asian and non-Asian patients.
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Affiliation(s)
- X. Zhang
- Department of Endocrinology and Metabolism, The Second Hospital of Dalian Medical University, Dalian, Liaoning 116027, China
- *X. Zhang:
| | - B. Brooks
- Diabetes Centre, Royal Prince Alfred Hospital, Camperdown, NSW 2050, Australia
- School of Nursing, University of Sydney, Sydney, NSW 2006, Australia
| | - L. Molyneaux
- Diabetes Centre, Royal Prince Alfred Hospital, Camperdown, NSW 2050, Australia
- Discipline of Medicine, University of Sydney, Sydney, NSW 2006, Australia
| | - E. Landy
- Diabetes Centre, Royal Prince Alfred Hospital, Camperdown, NSW 2050, Australia
| | - R. Banatwalla
- Diabetes Centre, Royal Prince Alfred Hospital, Camperdown, NSW 2050, Australia
| | - T. Wu
- Diabetes Centre, Royal Prince Alfred Hospital, Camperdown, NSW 2050, Australia
| | - J. Wong
- Diabetes Centre, Royal Prince Alfred Hospital, Camperdown, NSW 2050, Australia
- Discipline of Medicine, University of Sydney, Sydney, NSW 2006, Australia
| | - B. Su
- Department of Endocrinology and Metabolism, The Second Hospital of Dalian Medical University, Dalian, Liaoning 116027, China
| | - D. K. Yue
- Diabetes Centre, Royal Prince Alfred Hospital, Camperdown, NSW 2050, Australia
- Discipline of Medicine, University of Sydney, Sydney, NSW 2006, Australia
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Wang JJ, Zhou JJ, Yuan XL, Li CY, Sheng H, Su B, Sheng CJ, Qu S, Li H. Hyperthyroidism caused by acquired immune deficiency syndrome. Eur Rev Med Pharmacol Sci 2014; 18:875-879. [PMID: 24706313] [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: 06/03/2023]
Abstract
BACKGROUND Acquired immune deficiency syndrome (AIDS) is an immune deficiency disease. The etiology of hyperthyroidism, which can also be immune-related, is usually divided into six classical categories, including hypophyseal, hypothalamic, thyroid, neoplastic, autoimmune and inflammatory hyperthyroidism. Hyperthyroidism is a rare complication of highly active antimicrobial therapy (HAART) for human immunodeficiency virus (HIV). Hyperthyroidism caused directly by AIDS has not been previously reported. PATIENT FINDINGS A 29-year-old man who complained of dyspnea and asthenia for 1 month, recurrent fever for more than 20 days, and breathlessness for 1 week was admitted to our hospital. The thyroid function test showed that the level of free thyroxine (FT4) was higher than normal and that the level of thyroid-stimulating hormone (TSH) was below normal. He was diagnosed with hyperthyroidism. Additional investigations revealed a low serum albumin level and chest infection, along with diffuse lung fibrosis. Within 1 month, he experienced significant weight loss, no hand tremors, intolerance of heat, and perspiration proneness. We recommended an HIV examination; subsequently, AIDS was diagnosed based on the laboratory parameters. SUMMARY This is the first reported case of hyperthyroidism caused by AIDS. CONCLUSIONS AIDS may cause hyperthyroidism by immunization regulation with complex, atypical, and easily ignored symptoms. Although hyperthyroidism is rare in patients with AIDS, clinicians should be aware of this potential interaction and should carefully monitor thyroid function in HIV-positive patients.
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Affiliation(s)
- J-J Wang
- Department of Endocrinology, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China.
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Guo Q, Cheng J, Zhang J, Su B, Bian C, Lin S, Zhong C. Delayed post-injury administration of C5a improves regeneration and functional recovery after spinal cord injury in mice. Clin Exp Immunol 2013; 174:318-25. [PMID: 23855891 DOI: 10.1111/cei.12175] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/09/2013] [Indexed: 12/13/2022] Open
Abstract
The activation of a complement system can aggravate the secondary injury after spinal cord injury (SCI). However, it was reported recently that the activation of a complement could have both a secondary injury and a neuroprotective effect, in which C5a is the most important factor, but there is no direct evidence for this dual effect of C5a after SCI. In order to investigate the potential neuroprotective effect of C5a after SCI, in this study ectogenic C5a was injected intraperitoneally before/after SCI in vivo, or administrated to mechanically injured neurones in vitro; following this, neurone apoptosis, neurite outgrowth, axonal regeneration and functional recovery were investigated. The in-vivo experiments indicated that, following treatment with C5a 24 h before or immediately after injury, locomotor function was impaired significantly. However, when treatment with C5a took place 24 h after injury, locomotor function improved significantly. In-vitro experiments indicated that a certain concentration of C5a (50-100 nM) could inhibit caspase-3-mediated neurone apoptosis by binding to its receptor CD88, and that it could even promote the neurite outgrowth of uninjured neurones. In conclusion, delayed post-injury administration of C5a within a certain concentration could exert its neuroprotective effect through inhibiting caspase-3-mediated neurone apoptosis and promoting neurite outgrowth of uninjured neurones as well. These data suggest that C5a may have opposite functions in a time- and concentration-dependent manner after SCI. The dual roles of C5a have to be taken into account when measures are taken to inhibit complement activation in order to promote regeneration after SCI.
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Affiliation(s)
- Q Guo
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, China
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Tong L, Cai M, Huang Y, Zhang H, Su B, Li Z, Dong H. Activation of K(2)P channel-TREK1 mediates the neuroprotection induced by sevoflurane preconditioning. Br J Anaesth 2013; 113:157-67. [PMID: 24154701 PMCID: PMC4062297 DOI: 10.1093/bja/aet338] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Background Preconditioning with volatile anaesthetic agents induces tolerance to focal cerebral ischaemia, although the underlying mechanisms have not been clearly defined. The present study analyses whether TREK-1, a two-pore domain K+ channel and target for volatile anaesthetics, plays a role in mediating neuroprotection by sevoflurane. Methods Differentiated SH-SY5Y cells were preconditioning with sevoflurane and challenged by oxygen–glucose deprivation (OGD). Cell viability and expression of caspase-3 and TREK-1 were evaluated. Rats that were preconditioned with sevoflurane were subjected to middle cerebral artery occlusion (MCAO), and the expression of TREK-1 protein and mRNA was analysed. Neurological scores were evaluated and infarction volume was examined. Results Sevoflurane preconditioning reduced cell death in differentiated SH-SY5Y cells challenged by OGD. Sevoflurane preconditioning reduced infarct volume and improved neurological outcome in rats subjected to MCAO. Sevoflurane preconditioning increased levels of TREK-1 mRNA and protein. Knockdown of TREK-1 significantly attenuated sevoflurane preconditioning-induced neuroprotective effects in vitro and in vivo. Conclusions Sevoflurane preconditioning-induced neuroprotective effects against transient cerebral ischaemic injuries involve TREK-1 channels. These results suggest a novel mechanism for sevoflurane preconditioning-induced tolerance to focal cerebral ischaemia.
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Affiliation(s)
- L Tong
- Department of Anesthesiology, Xijing Hospital, Xi'an, Shanxi 710032, China
| | - M Cai
- Department of Anesthesiology, Xijing Hospital, Xi'an, Shanxi 710032, China
| | - Y Huang
- Department of Anesthesiology, Xijing Hospital, Xi'an, Shanxi 710032, China
| | - H Zhang
- Department of Anesthesiology, Xijing Hospital, Xi'an, Shanxi 710032, China
| | - B Su
- Department of Anesthesiology, Xijing Hospital, Xi'an, Shanxi 710032, China
| | - Z Li
- Department of Anesthesiology, Xijing Hospital, Xi'an, Shanxi 710032, China
| | - H Dong
- Department of Anesthesiology, Xijing Hospital, Xi'an, Shanxi 710032, China
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Xu QH, Shi JY, Zhang J, Sun YF, Chang AH, Zhao YM, Cai WJ, Liu D, Zhou CC, Fan LH, Su B. Comparison of tumor neovasculature-targeted paramagnetic nanoliposomes for MRI in mice xenograft models. Clin Transl Oncol 2013; 16:395-401. [DOI: 10.1007/s12094-013-1091-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Accepted: 07/17/2013] [Indexed: 01/30/2023]
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Guo Q, Cheng J, Zhang H, Zhang J, Su B, Bian C, Lin S. Expressions of C5a and its receptor CD88 after spinal cord injury in C3-deficient mice. Scand J Immunol 2013; 77:224-9. [PMID: 23033813 DOI: 10.1111/sji.12001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Accepted: 09/20/2012] [Indexed: 12/13/2022]
Abstract
The activation of complement system can aggravate the secondary injury after spinal cord injury (SCI). Our previous study indicates that the interception of complement activation by C3 deficiency can reduce the secondary injury and improve the regeneration and functional recovery after SCI. However, recently, it was reported that C5a which was generated during the complement activation pathways also had a protective effect on neurons, but whether it has the similar effect after SCI is unknown. To investigate the possibility and mechanism of the protective effect of C5a on neurons, it is necessary to study the expression profiles of C5a and its receptor CD88 after SCI and the influence on their expression when C3 was knocked out. By immunohistochemistry and Western blot, we found that in wild-type (WT) mice, both the expression of C5a and its receptor CD88 increased significantly, and there were two peaks during their expression after SCI. However, in C3-deficient mice, the expression of C5a still increased after SCI, although it was lower than that in WT group at every time points after SCI, and the expression of CD88 remained stable. Our study suggests that the expressions of C5a and CD88 can be inhibited in different degrees after SCI when the activation of complement system is blocked through C3 deficiency, which can reduce the secondary injury caused by C5a after SCI on one hand but deprive neurons of the possible protective effect from C5a on the other hand.
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Affiliation(s)
- Q Guo
- Department of Neurobiology, Chongqing Key Laboratory of Neurobiology, Third Military Medical University, Chongqing, China.
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Singer J, Katz P, Dean M, Chen J, Su B, Kern R, Leard L, Hays S, Kukreja J, Blanc P. Frailty Is Common in Lung Transplant Candidates and Associated with Poorer Health-Related Quality of Life. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.912] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Li R, Zhang XM, Campana MG, Huang JP, Chang ZH, Qi XB, Shi H, Su B, Zhang RF, Lan XY, Chen H, Lei CZ. Paternal origins of Chinese cattle. Anim Genet 2013; 44:446-9. [DOI: 10.1111/age.12022] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/28/2012] [Indexed: 11/28/2022]
Affiliation(s)
- R. Li
- Shaanxi Key Laboratory of Molecular Biology for Agriculture; College of Animal Science and Technology; Northwest A&F University; Yangling; Shaanxi; 712100; China
| | - X. M. Zhang
- State Key Laboratory of Genetic Resources and Evolution; Kunming Institute of Zoology and Kunming Primate Research Centre; Chinese Academy of Sciences; Kunming; Yunnan; 650223; China
| | - M. G. Campana
- Department of Human Evolutionary Biology; Harvard University; Cambridge; MA; 02138; USA
| | - J. P. Huang
- Shaanxi Key Laboratory of Molecular Biology for Agriculture; College of Animal Science and Technology; Northwest A&F University; Yangling; Shaanxi; 712100; China
| | - Z. H. Chang
- Weinan Vocational and Technical College; Weinan; Shaanxi; 714000; China
| | - X. B. Qi
- State Key Laboratory of Genetic Resources and Evolution; Kunming Institute of Zoology and Kunming Primate Research Centre; Chinese Academy of Sciences; Kunming; Yunnan; 650223; China
| | - H. Shi
- State Key Laboratory of Genetic Resources and Evolution; Kunming Institute of Zoology and Kunming Primate Research Centre; Chinese Academy of Sciences; Kunming; Yunnan; 650223; China
| | - B. Su
- State Key Laboratory of Genetic Resources and Evolution; Kunming Institute of Zoology and Kunming Primate Research Centre; Chinese Academy of Sciences; Kunming; Yunnan; 650223; China
| | - R. F. Zhang
- College of Life Science; National Experiment Teaching Center of Biology; Hubei Normal University; Huangshi; Hubei; 435002; China
| | - X. Y. Lan
- Shaanxi Key Laboratory of Molecular Biology for Agriculture; College of Animal Science and Technology; Northwest A&F University; Yangling; Shaanxi; 712100; China
| | - H. Chen
- Shaanxi Key Laboratory of Molecular Biology for Agriculture; College of Animal Science and Technology; Northwest A&F University; Yangling; Shaanxi; 712100; China
| | - C. Z. Lei
- Shaanxi Key Laboratory of Molecular Biology for Agriculture; College of Animal Science and Technology; Northwest A&F University; Yangling; Shaanxi; 712100; China
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Zhang X, Su B, Li J, Li Y, Lu D, Zhu K, Pei H, Zhao M. Analysis by RP-HPLC of Mangiferin Component Correlation between Medicinal Loranthus and their Mango Host Trees. J Chromatogr Sci 2012; 52:1-4. [DOI: 10.1093/chromsci/bms196] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Su B, Biedma ME, Lederle A, Lambotin M, Moog C. Modulation of HIV-1 replication in primary dendritic cells in contact with autologous CD4 T-lymphocytes. Retrovirology 2012. [PMCID: PMC3441910 DOI: 10.1186/1742-4690-9-s2-p182] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Su B, Gao L, Meng F, Guo LW, Rothschild J, Gelman IH. Adhesion-mediated cytoskeletal remodeling is controlled by the direct scaffolding of Src from FAK complexes to lipid rafts by SSeCKS/AKAP12. Oncogene 2012; 32:2016-26. [PMID: 22710722 PMCID: PMC3449054 DOI: 10.1038/onc.2012.218] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [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] [Indexed: 01/15/2023]
Abstract
Metastatic cell migration and invasion are regulated by altered adhesion-mediated signaling to the actin-based cytoskeleton via activated Src-FAK complexes. SSeCKS (the rodent orthologue of human Gravin/AKAP12), whose expression is downregulated by oncogenic Src and in many human cancers, antagonizes oncogenic Src pathways including those driving neovascularization at metastatic sites, metastatic cell motility and invasiveness. This is likely manifested through its function as a scaffolder of F-actin and signaling proteins such as cyclins, calmodulin, protein kinase (PK) C and PKA. Here, we show that in contrast to its ability to inhibit haptotaxis, SSeCKS increased prostate cancer cell adhesion to fibronectin (FN) and type I collagen in a FAK-dependent manner, correlating with a relative increase in FAKpoY397 levels. In contrast, SSeCKS suppressed adhesion-induced Src activation (SrcpoY416) and phosphorylation of FAK at Y925, a known Src substrate site. SSeCKS also induced increased cell spreading, cell flattening, integrin β1 clustering and formation of mature focal adhesion plaques. An in silico analysis identified a Src-binding domain on SSeCKS (a.a.153–166) that is homologous to the Src binding domain of Caveolin-1, and this region is required for SSeCKS-Src interaction, for SSeCKS-enhanced Src activity and sequestration to lipid rafts, and for SSeCKS-enhanced adhesion of MAT-LyLu and CWR22Rv1 prostate cancer cells. Our data suggest a model in which SSeCKS suppresses oncogenic motility by sequestering Src to caveolin-rich lipid rafts, thereby disengaging Src from FAK-associated adhesion and signaling complexes.
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Affiliation(s)
- B Su
- Department of Cancer Genetics, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
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Tsai C, Lin Y, Su B, Yang L, Chiu W. Masseter muscle fibre changes following reduction of masticatory function. Int J Oral Maxillofac Surg 2012; 41:394-9. [DOI: 10.1016/j.ijom.2011.10.016] [Citation(s) in RCA: 22] [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] [Received: 01/18/2011] [Revised: 07/11/2011] [Accepted: 10/18/2011] [Indexed: 10/15/2022]
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Ke Y, Su B, Xiao J, Chen H, Huang W, Chen Z, Chu J, Tan J, Jin L, Lu D. Y-chromosome haplotype distribution in Han Chinese populations and modern human origin in East Asians. ACTA ACUST UNITED AC 2011; 44:225-32. [PMID: 18726402 DOI: 10.1007/bf02879329] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2000] [Indexed: 10/22/2022]
Abstract
We investigated the distribution of Y-chromosome haplotype using 19 Y-SNPs in Han Chinese populations from 22 provinces of China. Our data indicate distinctive patterns of Y chromosome between southern and northern Han Chinese populations. The southern populations are much more polymorphic than northern populations. The latter has only a subset of the southern haplotypes. This result confirms the genetic difference observed between southern and northern ethnic populations in East Asia. It supports the hypothesis that the first settlement of modern humans of African origin occurred in the southern part of East Asia during the last Ice Age, and a northward migration led to the peopling of northern China.
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Affiliation(s)
- Y Ke
- Institute of Genetics and Morgan-Tan International Center for Life Science, Fudan University, 200433, Shanghai, China
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Hsu CC, Lin YA, Su B, Li JH, Huang HY, Hsu MCP. NO EFFECT OF CORDYCEPS SINENSIS SUPPLEMENTATION ON TESTOSTERONE LEVEL AND MUSCLE STRENGTH IN HEALTHY YOUNG ADULTS FOR RESISTANCE TRAINING. Biol Sport 2011. [DOI: 10.5604/942739] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Becker W, Su B, Holub O, Weisshart K. FLIM and FCS detection in laser-scanning microscopes: increased efficiency by GaAsP hybrid detectors. Microsc Res Tech 2010; 74:804-11. [PMID: 23939667 DOI: 10.1002/jemt.20959] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Accepted: 09/29/2010] [Indexed: 11/06/2022]
Abstract
Photon counting detectors currently used in fluorescence lifetime microscopy have a number of deficiencies that result in less-than-ideal signal-to-noise ratio of the lifetimes obtained: either the quantum efficiency is unsatisfactory or the active area is too small, and afterpulsing or tails in the temporal response contribute to overall timing inaccuracy. We have therefore developed a new FLIM detector based on a GaAsP hybrid photomultiplier. Compared with conventional PMTs and SPADs, GaAsP hybrid detectors have a number of advantages: The detection quantum efficiency reaches or surpasses the efficiency of fast SPADs, and the active area is on the order of 5 mm², compared with 2.5 10⁻³ mm² for a SPAD. The TCSPC response is clean, without the bumps and the diffusion tails typical for PMTs and SPADs. Most important, the hybrid detector is intrinsically free of afterpulsing. FLIM results are therefore free of signal-dependent background, and FCS curves are free of the known afterpulsing peak. We demonstrate the performance of the new detector for multiphoton NDD FLIM and for FCS.
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Affiliation(s)
- W Becker
- Becker & Hickl GmbH, Nahmitzer Damm 30, Berlin, Germany.
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