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Warzywoda S, Dyda A, Fitzgerald L, Mullens A, Debattista J, Durham J, Gu Z, Wenham K, Ariana A, Gilks CF, Bell SFE, Dean JA. A cross-sectional investigation of the factors associated with awareness of PEP and PrEP among Queensland university students. Aust N Z J Public Health 2024; 48:100136. [PMID: 38432178 DOI: 10.1016/j.anzjph.2024.100136] [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: 07/20/2023] [Revised: 01/11/2024] [Accepted: 02/08/2024] [Indexed: 03/05/2024] Open
Abstract
OBJECTIVE University creates unique social environments for many young people that can result in behaviour changes that can impact sexual health-related risks and facilitate transmission of HIV. Little is known about HIV knowledge, risk, and awareness of pre-exposure prophylaxis/post-exposure prophylaxis (PrEP/PEP) among Australian university students. METHODS A 2019 online survey distributed through Queensland universities, using active recruitment/snowball sampling. Descriptive and logistical regression analysis investigated HIV knowledge/risk and PrEP/PEP awareness. RESULTS Of the 4,291 responses, 60.4% were 20-29 years old, 57.0% identified as heterosexual, and 31.8% were born-overseas. Mean HIV knowledge score was 9.8/12. HIV risk scores were higher among men-who-have-sex-with-men (MSM) (mean=5.2/40) compared to all other sexual behaviours (mean=3.1/40). Logistic regression indicated PrEP and PEP awareness was associated with older age (p<0.05), being non-binary/gender-diverse (p<0.05), and MSM (p<0.05). Lower odds of PrEP awareness were associated with international student status (p<0.05). CONCLUSION This study highlights the need for future health promotion targeting younger Australians at risk of HIV to increase uptake of PrEP/PEP, particularly among overseas-born young people and those ineligible for appropriate health care in Australia. IMPLICATIONS FOR PUBLIC HEALTH Addressing these gaps will improve sexual health outcomes for young Australians at risk of HIV and work towards virtual elimination of HIV transmission in Australia.
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Affiliation(s)
- Sarah Warzywoda
- School of Public Health, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia.
| | - Amalie Dyda
- School of Public Health, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Lisa Fitzgerald
- School of Public Health, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Amy Mullens
- School of Psychology and Wellbeing, Centre for Health Research, Institute for Resilient Regions, University of Southern Queensland, Australia
| | - Joseph Debattista
- Metro North Public Health Unit, Metro North Hospital and Health Service, Australia
| | - Jo Durham
- School of Public Health and Social Work, Queensland University of Technology, Australia
| | - Zhihong Gu
- Ethnic Communities Council of Queensland, Australia
| | - Kathryn Wenham
- School of Health and Behavioural Sciences, University of the Sunshine Coast, Australia
| | - Armin Ariana
- School of Medicine and Dentistry, Griffith University, Australia
| | - Charles F Gilks
- School of Public Health, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Sara F E Bell
- School of Public Health, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Judith A Dean
- School of Public Health, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
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Hayden RT, Su Y, Tang L, Zhu H, Gu Z, Glasgow HL, Sam SS, Caliendo AM. Accuracy of quantitative viral secondary standards: a re-examination. J Clin Microbiol 2024; 62:e0166923. [PMID: 38380932 PMCID: PMC10935634 DOI: 10.1128/jcm.01669-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 01/24/2024] [Indexed: 02/22/2024] Open
Abstract
Interlaboratory agreement of viral load assays depends on the accuracy and uniformity of quantitative calibrators. Previous work demonstrated poor agreement of secondary cytomegalovirus (CMV) standards with nominal values. This study re-evaluated this issue among commercially produced secondary standards for both BK virus (BKV) and CMV, using digital polymerase chain reaction (dPCR) to compare the materials from three different manufacturers. Overall, standards showed an improved agreement compared to prior work, against nominal values in both log10 copies/mL and log10 international unit (IU)/mL, with bias from manufacturer-assigned nominal values of 0.0-0.9 log10 units (either copies or IU)/mL. Standards normalized to IU and those values assigned by dPCR rather than by real-time PCR (qPCR) showed better agreement with nominal values. The latter reinforces prior conclusions regarding the utility of using such methods for quantitative value assignment in reference materials. Quantitative standards have improved over the last several years, and the remaining bias from nominal values might be further reduced by universal implementation of dPCR methods for value assignment, normalized to IU. IMPORTANCE Interlaboratory agreement of viral load assays depends on accuracy and uniformity of quantitative calibrators. Previous work, published in JCM several years ago, demonstrated poor agreement of secondary cytomegalovirus (CMV) standards with nominal values. This study re-evaluated this issue among commercially produced secondary standards for both BK virus (BKV) and CMV, using digital polymerase chain reaction (dPCR) to compare the materials from three different manufacturers. Overall, standards showed an improved agreement compared to prior work, against nominal values, indicating a substantial improvement in the production of accurate secondary viral standards, while supporting the need for further work in this area and for the broad adaption of international unit (IU) as a reporting standard for quantitative viral load results.
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Affiliation(s)
- R. T. Hayden
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Y. Su
- Department of Biostatistics, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - L. Tang
- Department of Biostatistics, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - H. Zhu
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Z. Gu
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - H. L. Glasgow
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - S. S. Sam
- Division of Infectious Diseases, Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - A. M. Caliendo
- Department of Medicine, Alpert Medical School of Brown University, Providence, Rhode Island, USA
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Istiko SN, Remata S, Ndayizeye A, Moreno MEV, Kirunda V, Hollingdrake O, Osborne R, Hou JZ, Abell B, Mullens AB, Gu Z, Debattista J, Vujcich D, Lobo R, Parma G, Howard C, Durham J. Developing critical HIV health literacy: insights from interviews with priority migrant communities in Queensland, Australia. Cult Health Sex 2023:1-16. [PMID: 37950430 DOI: 10.1080/13691058.2023.2265960] [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] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 09/28/2023] [Indexed: 11/12/2023]
Abstract
In Australia, surveillance data establish that there are higher rates of late HIV diagnoses among heterosexual migrants from Sub-Saharan Africa and new HIV diagnoses among gay and bisexual men (GBM) from Southeast and Northeast Asia and Latin America. Together, these groups are identified as priority migrant communities in current efforts to eliminate HIV transmissions. HIV health literacy is recognised as a key means of improving access to services and health outcomes. This qualitative paper explores critical HIV health literacy among priority migrant communities in Queensland, Australia. To foreground community voices, peer researchers from priority migrant communities participated in the project design, data collection and analysis, with 20 interviews completed. The findings demonstrate how participants' engagement with HIV health information and services is highly relational and situated within the framework of sexual health and wellbeing. Participants strategically selected where to seek information and who they trusted to help them appraise this information. They further demonstrated reflective capacities in identifying the contextual barriers that inhibit the development of their HIV health literacy. The findings highlight the need for HIV health promotion strategies that embrace a sex positive approach, promote cultural change, and involve collaboration with general practitioners (GPs).
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Affiliation(s)
- Satrio Nindyo Istiko
- Faculty of Health, School of Public Health and Social Work, Queensland University of Technology, Brisbane, Queensland, Australia
- Faculty of Medicine, School of Public Health, The University of Queensland, Brisbane, Queensland, Australia
| | - Simeon Remata
- Queensland Positive People, Brisbane, Queensland, Australia
- ACON, Sydney, New South Wales, Australia
| | - Aimable Ndayizeye
- Faculty of Health, School of Public Health and Social Work, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Miguel Eduardo Valencia Moreno
- Faculty of Health, School of Public Health and Social Work, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Vanessa Kirunda
- Faculty of Health, School of Public Health and Social Work, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Olivia Hollingdrake
- School of Nursing, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Richard Osborne
- Department of Health and Medical Sciences, School of Health Sciences, Swinburne University of Technology, Hawthorn, Victoria, Australia
| | - Jenny Zhengye Hou
- Faculty of Creative Industries, Education, and Social Justice, School of Communication/Digital Media Research Centre, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Bridget Abell
- Faculty of Health, School of Public Health and Social Work, Queensland University of Technology, Brisbane, Queensland, Australia
- Australian Centre for Health Services Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Amy B Mullens
- Centre for Health Research, School of Psychology and Wellbeing, Institute for Resilient Regions, University of Southern Queensland, Ipswich, Queensland, Australia
| | - Zhihong Gu
- Ethnic Communities Council of Queensland, Brisbane, Queensland, Australia
| | - Joseph Debattista
- Metro North Public Health Unit, Metro North Hospital and Health Service, Herston, Queensland, Australia
| | - Daniel Vujcich
- Curtin School of Population Health, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia
| | - Roanna Lobo
- Curtin School of Population Health, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia
| | - Gianna Parma
- True Relationships & Reproductive Health, Brisbane, Queensland, Australia
| | - Chris Howard
- Queensland Positive People, Brisbane, Queensland, Australia
| | - Jo Durham
- Faculty of Health, School of Public Health and Social Work, Queensland University of Technology, Brisbane, Queensland, Australia
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Lirios A, Mullens AB, Daken K, Moran C, Gu Z, Assefa Y, Dean JA. Sexual and reproductive health literacy of culturally and linguistically diverse young people in Australia: a systematic review. Cult Health Sex 2023:1-18. [PMID: 37755697 DOI: 10.1080/13691058.2023.2256376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
Young people from culturally and linguistically diverse backgrounds experience barriers accessing sexual and reproductive health (SRH) information and care. This systematic review, utilising a pre-determined protocol, performed according to PRISMA guidelines, explored SRH knowledge, attitudes and information sources for young (16-24 years) culturally and linguistically diverse background people living in Australia, to gain understanding of their sexual health literacy. CINAHL, Embase, MEDLINE, PubMed and Scopus were systematically searched with inclusion criteria applied to 216 articles. After title and abstract screening, backward/forward searching, and full-text review of 58 articles, 13 articles from eight studies were identified. Thematic analysis, guided by core constructs from cultural care theory, identified three themes: (1) SRH knowledge varied by topic but was generally low; (2) young people's attitudes and beliefs were influenced by family and culture; however, 'silence' was the main barrier to sexual health literacy; and (3) Access to SRH information was limited. To attain sexual health literacy and equitable access to culturally-congruent and responsive SRH information and care, there is a need for theory-informed strategies and policies that address the diverse social, cultural and structural factors affecting young culturally and linguistically diverse background people, especially the 'silence' or lack of open SRH communication they experience.
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Affiliation(s)
- Alison Lirios
- Faculty of Medicine, School of Public Health, The University of Queensland, Herston, Queensland, Australia
| | - Amy B Mullens
- School of Psychology and Wellbeing, Centre for Health Research, Institute for Resilient Regions, University of Southern Queensland, Ipswich, Queensland, Australia
| | - Kirstie Daken
- School of Psychology and Wellbeing, Centre for Health Research, Institute for Resilient Regions, University of Southern Queensland, Ipswich, Queensland, Australia
| | - Claire Moran
- True Relationships and Reproductive Health (True), Windsor, Queensland, Australia
| | - Zhihong Gu
- Ethnic Communities Council of Queensland (ECCQ), West End, Queensland, Australia
| | - Yibeltal Assefa
- Faculty of Medicine, School of Public Health, The University of Queensland, Herston, Queensland, Australia
| | - Judith A Dean
- Faculty of Medicine, School of Public Health, The University of Queensland, Herston, Queensland, Australia
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Engstrom T, Waller M, Mullens AB, Debattista J, Durham J, Gu Z, Wenham K, Daken K, Ariana A, Gilks CF, Bell SFE, Williams OD, Dingle K, Dean JA. STI and HIV testing: examining factors that influence uptake among domestic Australian-born, domestic overseas-born and international tertiary students studying in Australia. BMC Public Health 2023; 23:505. [PMID: 36922801 PMCID: PMC10018943 DOI: 10.1186/s12889-023-15418-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 03/10/2023] [Indexed: 03/18/2023] Open
Abstract
OBJECTIVES Sexual health knowledge among international students in Australia is lower than domestic students, however, little is known about what factors affect the uptake of STI testing, nor if there are differences for overseas-born domestic students. METHODS We included sexually active respondents from a survey of university students in Australia (N = 3,075). Multivariate regression and mediation analyses investigated associations of STI and HIV testing with STI and HIV knowledge respectively, sexual risk behaviour and demographics, including comparisons among: domestic Australian-born, domestic overseas-born, and international students. RESULTS STI and HIV knowledge was positively associated with STI and HIV testing respectively (STI OR = 1.13, 95% CI: 1.09, 1.16; HIV OR = 1.37, 95% CI: 1.27, 1.48). STI knowledge was significantly lower for international than domestic Australian-born students (10.8 vs. 12.2 out of 16), as was STI testing (32% vs. 38%); the difference in knowledge accounted for half the difference in STI testing rates between these two groups. International students from Southern Asia, and Eastern Asia reported the lowest STI testing rates. HIV testing was highest amongst international students from Africa and North America. Higher sexual risk behaviour, younger age, and identifying as gay or bisexual were positively associated with higher STI and HIV testing rates. CONCLUSIONS Our study supports greater investment and commitment by universities for the provision of sexual health education that can promote access to testing to improve the health of their students.
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Affiliation(s)
- Teyl Engstrom
- School of Public Health, Faculty of Medicine, The University of Queensland, Public Health Building, Herston, QLD, 4006, Australia.
| | - Michael Waller
- School of Public Health, Faculty of Medicine, The University of Queensland, Public Health Building, Herston, QLD, 4006, Australia
| | - Amy B Mullens
- School of Psychology and Wellbeing, Centre for Health Research, Institute for Resilient Regions, University of Southern Queensland, Ipswich, Australia
| | - Joseph Debattista
- Metro North Public Health Unit, Metro North Hospital and Health Service, Herston, Australia
| | - Jo Durham
- School of Public Health and Social Work, Queensland University of Technology, Brisbane, Australia
| | - Zhihong Gu
- Ethnic Communities Council of Queensland, West End, Australia
| | - Kathryn Wenham
- School of Health and Behavioural Sciences, University of the Sunshine Coast, Sippy Downs, Australia
| | - Kirstie Daken
- School of Psychology and Wellbeing, Centre for Health Research, Institute for Resilient Regions, University of Southern Queensland, Ipswich, Australia
| | - Armin Ariana
- School of Medicine and Dentistry, Griffith University, Nathan, Australia
| | - Charles F Gilks
- School of Public Health, Faculty of Medicine, The University of Queensland, Public Health Building, Herston, QLD, 4006, Australia
| | - Sara F E Bell
- School of Public Health, Faculty of Medicine, The University of Queensland, Public Health Building, Herston, QLD, 4006, Australia
| | - Owain D Williams
- School of Public Health, Faculty of Medicine, The University of Queensland, Public Health Building, Herston, QLD, 4006, Australia
| | - Kaeleen Dingle
- School of Public Health and Social Work, Queensland University of Technology, Brisbane, Australia
| | - Judith A Dean
- School of Public Health, Faculty of Medicine, The University of Queensland, Public Health Building, Herston, QLD, 4006, Australia
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Gu Z, Hu K, Liang Y, Zhang F, Tong A, Hou X. Favorable outcome in advanced pheochromocytoma and paraganglioma after hypofractionated intensity modulated radiotherapy. J Endocrinol Invest 2023; 46:477-485. [PMID: 36121637 DOI: 10.1007/s40618-022-01908-1] [Citation(s) in RCA: 1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 08/19/2022] [Indexed: 10/14/2022]
Abstract
PURPOSE The purpose of this study was to review outcomes of patients with advanced/metastatic pheochromocytoma/paraganglioma (PPGL) treated at our institution with Intensity-modulated radiotherapy (IMRT), describe the treatment outcomes, and determine predictors. METHODS A retrospective study on patients with advanced/metastatic PPGL who received IMRT at Peking Union Medical College Hospital between 2014 and 2019. A total of 14 patients with 17 lesions were included in this study. Ultra-hypofractionated radiation therapy was used for 7 lesions in 5 patients, while hypofractionated radiation therapy was used for 8 lesions in 7 patients. 2 patients got conventional fractionated radiotherapy. Patients who received external beam radiation therapy were given a median total radiation dose of 74.4/130 Gy (BED10/3) in a median of 13 fractions. RESULTS OS at 2 years was 78% for all patients. For lesions evaluated by RECIST response, at least stable disease of the target lesion was achieved in 94% and distant progression in 28.5%, with an average time to progression of 5.2 months. Patients with locally advanced primary tumors or recurred in situ (n = 8) achieved 100% local control, and none of them got recurrence or distant metastasis after radiotherapy at last follow-up (median 29 months). Of patients with catecholamine-related syndromes (n = 12), 91% of symptomatic lesions improved following radiation therapy and a more than 50% decline in catecholamines. CONCLUSIONS We have found hypofractionated IMRT effective as an additional therapy for patients with advanced primary tumors or recurrence in situ and not amenable to complete surgical resection.
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Affiliation(s)
- Z Gu
- Department of Radiation Oncology, Chinese Academy of Medical Sciences & Peking Union Medical College, Peking Union Medical College Hospital, Dongdansantiao No. 5, Dongcheng District, Beijing, China
| | - K Hu
- Department of Radiation Oncology, Chinese Academy of Medical Sciences & Peking Union Medical College, Peking Union Medical College Hospital, Dongdansantiao No. 5, Dongcheng District, Beijing, China
| | - Y Liang
- Department of Radiation Oncology, Chinese Academy of Medical Sciences & Peking Union Medical College, Peking Union Medical College Hospital, Dongdansantiao No. 5, Dongcheng District, Beijing, China
| | - F Zhang
- Department of Radiation Oncology, Chinese Academy of Medical Sciences & Peking Union Medical College, Peking Union Medical College Hospital, Dongdansantiao No. 5, Dongcheng District, Beijing, China
| | - A Tong
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health Commission of the People's Republic of China, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - X Hou
- Department of Radiation Oncology, Chinese Academy of Medical Sciences & Peking Union Medical College, Peking Union Medical College Hospital, Dongdansantiao No. 5, Dongcheng District, Beijing, China.
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Vujcich D, Brown G, Durham J, Gu Z, Hartley L, Lobo R, Mao L, Moro P, Pillay V, Mullens AB, Oudih E, Roberts M, Wilshin C, Reid A. Strategies for Recruiting Migrants to Participate in a Sexual Health Survey: Methods, Results, and Lessons. Int J Environ Res Public Health 2022; 19:12213. [PMID: 36231514 PMCID: PMC9564521 DOI: 10.3390/ijerph191912213] [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] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 08/25/2022] [Accepted: 08/31/2022] [Indexed: 06/16/2023]
Abstract
In this article, we describe the approaches taken to recruit adult migrants living in Australia for a sexual health and blood-borne virus survey (paper and online) and present data detailing the outcomes of these approaches. The purpose was to offer guidance to redress the under-representation of migrants in public health research. Methods of recruitment included directly contacting people in individual/organizational networks, social media posts/advertising, promotion on websites, and face-to-face recruitment at public events/venues. Search query strings were used to provide information about an online referral source, and project officers kept records of activities and outcomes. Descriptive statistical analyses were used to determine respondent demographic characteristics, proportions recruited to complete the paper and online surveys, and sources of referral. Logistic regression analyses were run to predict online participation according to demographic characteristics. The total sample comprised 1454 African and Asian migrants, with 59% identifying as female. Most respondents (72%) were recruited to complete the paper version of the survey. Face-to-face invitations resulted in the highest number of completions. Facebook advertising did not recruit large numbers of respondents. Same-sex attraction and age (40-49 years) were statistically significant predictors of online completion. We encourage more researchers to build the evidence base on ways to produce research that reflects the needs and perspectives of minority populations who often bear the greatest burden of disease.
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Affiliation(s)
- Daniel Vujcich
- School of Population Health, Curtin University, Bentley, WA 6102, Australia
| | - Graham Brown
- Centre for Social Impact, UNSW, Sydney, NSW 2052, Australia
| | - Jo Durham
- Centre for Healthcare Transformation, Australian Centre for Health Services Innovation, School of Public Health and Social Work, Queensland University of Technology, Kelvin Grove, QLD 4059, Australia
| | - Zhihong Gu
- Ethnic Communities Council of Queensland, West End, QLD 4101, Australia
| | - Lisa Hartley
- Centre for Human Rights Education, Curtin University, Bentley, WA 6102, Australia
| | - Roanna Lobo
- School of Population Health, Curtin University, Bentley, WA 6102, Australia
| | - Limin Mao
- Centre for Social Research in Health, UNSW, Sydney, NSW 2052, Australia
| | - Piergiorgio Moro
- Multicultural Health Support Service, Centre for Culture, Ethnicity and Health, Richmond, VIC 3121, Australia
| | - Vivienne Pillay
- Ethnic Communities Council of WA, North Perth, WA 6006, Australia
| | - Amy B. Mullens
- Centre for Health Research, School of Psychology & Wellbeing, University of Southern Queensland, Ipswich, QLD 4305, Australia
| | - Enaam Oudih
- Relationships Australia South Australia, Hindmarsh, SA 5007, Australia
| | - Meagan Roberts
- School of Population Health, Curtin University, Bentley, WA 6102, Australia
| | - Caitlin Wilshin
- School of Population Health, Curtin University, Bentley, WA 6102, Australia
| | - Alison Reid
- School of Population Health, Curtin University, Bentley, WA 6102, Australia
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Hayden RT, Su Y, Boonyaratanakornkit J, Cook L, Gu Z, Jerome KR, Pinsky BA, Sam SS, Tan SK, Zhu H, Tang L, Caliendo AM. Matrix Matters: Assessment of Commutability among BK Virus Assays and Standards. J Clin Microbiol 2022; 60:e0055522. [PMID: 35997500 PMCID: PMC9491175 DOI: 10.1128/jcm.00555-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 07/18/2022] [Indexed: 11/20/2022] Open
Abstract
Quantitative testing of BK virus (BKPyV) nucleic acid has become the standard of care in transplant patients. While the relationship between interassay harmonization and commutability has been well characterized for other transplant-related viruses, it has been less well studied for BKPyV, particularly regarding differences in commutability between matrices. Here, interassay agreement was evaluated among six real-time nucleic acid amplification tests (NAATs) and one digital PCR (dPCR) BKPyV assay. Differences in the commutability of three quantitative standards was examined across all assays using a variety of statistical approaches. Panels, including 40 samples each of plasma and urine samples previously positive for BKPyV, together with one previously negative plasma sample and four previously negative urine samples, were tested using all assays, with each real-time NAAT utilizing its usual quantitative calibrators. Serial dilutions of WHO, National Institute for Standards and Technology (NIST), and commercially produced (Exact/Bio-Rad) reference materials were also run by each assay as unknowns. The agreement of the clinical sample values was assessed as a group and in a pairwise manner. The commutability was estimated using both relativistic and quantitative means. The quantitative agreement across assays in the urine samples was within a single log10 unit across all assays, while the results from the plasma samples varied by 2 to 3 log10 IU/mL. The commutability showed a similar disparity between the matrices. Recalibration using international standards diminished the resulting discrepancies in some but not all cases. Differences in the sample matrix can affect the commutability and interassay agreement of quantitative BKPyV assays. Differences in commutability between matrices may largely be due to factors other than those such as amplicon size, previously described as important in the case of cytomegalovirus. Continued efforts to standardize viral load measurements must address multiple sources of variability and account for differences in assay systems, quantitative standards, and sample matrices.
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Affiliation(s)
- R. T. Hayden
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Y. Su
- Department of Biostatistics, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | | | - L. Cook
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, USA
| | - Z. Gu
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - K. R. Jerome
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, USA
- Vaccine and Infectious Diseaese Division, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - B. A. Pinsky
- Department of Pathology, Stanford University School of Medicine, Stanford, California, USA
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - S. S. Sam
- Division of Infectious Diseases, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - S. K. Tan
- Department of Pathology, Stanford University School of Medicine, Stanford, California, USA
- Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - H. Zhu
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - L. Tang
- Department of Biostatistics, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - A. M. Caliendo
- Division of Infectious Diseases, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
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Shi C, Houyu J, Zhou R, Wu Y, Li H, Wang Y, Xu S, Gu Z, Li J, Zhang Z, Ren G. 880P Phase II trial of the cyclin dependent kinase 4/6 inhibitor SHR6390 in patients with advanced head and neck mucosal melanoma harboring CDK4 amplification. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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10
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Vujcich D, Roberts M, Brown G, Durham J, Gu Z, Hartley L, Lobo R, Mao L, Moro P, Mullens AB, Offord B, Oudih E, Reid A. Are sexual health survey items understood as intended by African and Asian migrants to Australia? Methods, results and recommendations for qualitative pretesting. BMJ Open 2021; 11:e049010. [PMID: 34880012 PMCID: PMC8655559 DOI: 10.1136/bmjopen-2021-049010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION More research and policy action are needed to improve migrant health in areas such as sexual health and blood-borne viruses (SHBBV). While Knowledge, Attitudes and Practice Surveys (KAPS) can inform planning, there are no SHBBV KAPS suitable for use across culturally and linguistically diverse contexts. This study pretests one instrument among people born in Sub-Saharan Africa, South-East and North-East Asia living in Australia. METHODS Employees of multicultural organisations were trained to collect data over three rounds using a hybrid qualitative pretesting method. Two researchers independently coded data. Researchers made revisions to survey items after each round. Responses to feedback questions in the final survey were analysed. RESULTS Sixty-two participants pretested the survey. Issues were identified in all three rounds of pretesting. Of the 77 final survey respondents who responded to a survey experience question, 21% agreed and 3% strongly agreed with the statement 'I found it hard to understand some questions/words'. CONCLUSION It is essential to pretest SHBBV surveys in migrant contexts. We offer the following pretesting guidance: (1) large samples are needed in heterogeneous populations; (2) intersectionality must be considered; (3) it may be necessary to pretest English language surveys in the participants' first language; (4) bilingual/bicultural workers must be adequately trained to collect data; (5) results need to be interpreted in the context of other factors, including ethics and research aims; and (6) pretesting should occur over multiple rounds.
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Affiliation(s)
- Daniel Vujcich
- School of Population Health, Curtin University Faculty of Health Sciences, Perth, Western Australia, Australia
| | - Meagan Roberts
- School of Population Health, Curtin University Faculty of Health Sciences, Perth, Western Australia, Australia
| | - Graham Brown
- Centre for Social Impact, University of New South Wales, Sydney, New South Wales, Australia
| | - Jo Durham
- School of Public Health and Social Work, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Zhihong Gu
- Hepatitis, HIV/AIDS and Sexual Health Program, Ethnic Communities Council of Queensland Ltd, West End, Queensland, Australia
| | - Lisa Hartley
- Centre for Human Rights Education, Curtin University, Perth, Western Australia, Australia
| | - Roanna Lobo
- School of Population Health, Curtin University Faculty of Health Sciences, Perth, Western Australia, Australia
| | - Limin Mao
- Centre for Social Health in Research, University of New South Wales, Sydney, New South Wales, Australia
| | - Piergiorgio Moro
- Multicultural Health and Support Service, Centre for Culture, Ethnicity and Health, Richmond, Victoria, Australia
| | - Amy B Mullens
- School of Psychology and Counselling, University of Southern Queensland - Ipswich Campus, Ipswich, Queensland, Australia
| | - Baden Offord
- Centre for Human Rights Education, Curtin University, Perth, Western Australia, Australia
| | - Enaam Oudih
- PEACE and MOSAIC, Relationships Australia South Australia, Adelaide, South Australia, Australia
| | - Alison Reid
- School of Population Health, Curtin University Faculty of Health Sciences, Perth, Western Australia, Australia
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Engstrom T, Waller M, Mullens AB, Durham J, Debattista J, Wenham K, Bell SFE, Ariana A, Gu Z, Daken K, Dingle K, Gilks CF, Williams OD, Dean JA. STI and HIV knowledge and testing: a comparison of domestic Australian-born, domestic overseas-born and international university students in Australia. Sex Health 2021; 18:346-348. [PMID: 34412769 DOI: 10.1071/sh21055] [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] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 06/21/2021] [Indexed: 11/23/2022]
Abstract
University students usually consist of young people from culturally and linguistically diverse backgrounds, and a group recognised as being at increased risk of STI. This study found lower levels of STI knowledge and STI testing among international students and to a lesser extent, domestic overseas-born students, compared with domestic Australian-born students. International students exhibited lower risk sexual behaviour but were more likely to have had a HIV test than domestic students. This diversity in sexual health knowledge, sexual health services utilisation and sexual experience indicates the need for a variety of public health approaches to improve sexual health.
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Affiliation(s)
- Teyl Engstrom
- School of Public Health, Faculty of Medicine, The University of Queensland,Herston Campus, 288 Herston Road, Herston, Qld 4006, Australia; and Corresponding author.
| | - Michael Waller
- School of Public Health, Faculty of Medicine, The University of Queensland,Herston Campus, 288 Herston Road, Herston, Qld 4006, Australia
| | - Amy B Mullens
- School of Psychology and Counselling, Centre for Health Research, University of Southern Queensland, Ipswich Campus, 11 Salisbury Road, Ipswich, Qld 4305, Australia
| | - Jo Durham
- School of Public Health and Social Work, Queensland University of Technology, Kelvin Grove Campus, Victoria Park Road, Kelvin Grove, Qld 4059, Australia
| | - Joseph Debattista
- Metro North Public Health Unit, Metro North Hospital and Health Service, Bryden Street, Windsor, Qld 4030, Australia
| | - Kathryn Wenham
- School of Health and Behavioural Sciences, University of the Sunshine Coast, 90 Sippy Downs Drive, Sippy Downs, Qld 4556, Australia
| | - Sara F E Bell
- School of Public Health, Faculty of Medicine, The University of Queensland,Herston Campus, 288 Herston Road, Herston, Qld 4006, Australia
| | - Armin Ariana
- School of Medicine and Dentistry, Griffith University, Gold Coast Campus, Parklands Drive, Southport, Qld 4222, Australia
| | - Zhihong Gu
- Ethnic Communities Council of Queensland, 253 Boundary Street, West End, Qld 4101, Australia
| | - Kirstie Daken
- School of Psychology and Counselling, Centre for Health Research, University of Southern Queensland, Ipswich Campus, 11 Salisbury Road, Ipswich, Qld 4305, Australia
| | - Kaeleen Dingle
- School of Public Health and Social Work, Queensland University of Technology, Kelvin Grove Campus, Victoria Park Road, Kelvin Grove, Qld 4059, Australia
| | - Charles F Gilks
- School of Public Health, Faculty of Medicine, The University of Queensland,Herston Campus, 288 Herston Road, Herston, Qld 4006, Australia
| | - Owain D Williams
- School of Public Health, Faculty of Medicine, The University of Queensland,Herston Campus, 288 Herston Road, Herston, Qld 4006, Australia
| | - Judith A Dean
- School of Public Health, Faculty of Medicine, The University of Queensland,Herston Campus, 288 Herston Road, Herston, Qld 4006, Australia
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Gu Z, Niu JJ, An GS, Du QX, Cao J, Jin QQ, Wang YY, Sun JH. Application Prospects and Prospect of Metabolomics in the Identification of Sudden Cardiac Death. Fa Yi Xue Za Zhi 2021; 37:388-395. [PMID: 34379910 DOI: 10.12116/j.issn.1004-5619.2019.491116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Indexed: 11/30/2022]
Abstract
Abstract In cases of sudden death, the prevention of sudden cardiac death and the analysis of the cause of death after sudden cardiac death have always been a difficult problem. Therefore, clinical research and forensic pathological identification of sudden cardiac death are of great significance. In recent years, metabolomics has gradually developed into a popular field of life science research. The detection of "metabolic fingerprints" of biological fluids can provide an important basis for early diagnosis of diseases and the discovery of potential biomarkers. This article reviews the current research status of sudden cardiac death and the research on metabolomics of cardiovascular diseases that is closely related to sudden cardiac death and analyzes the application prospects of metabolomics in the identification of the cause of sudden cardiac death.
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Affiliation(s)
- Z Gu
- School of Forensic Medicine, Shanxi Medical University, Taiyuan 030001, China
| | - J J Niu
- School of Forensic Medicine, Shanxi Medical University, Taiyuan 030001, China
| | - G S An
- School of Forensic Medicine, Shanxi Medical University, Taiyuan 030001, China
| | - Q X Du
- School of Forensic Medicine, Shanxi Medical University, Taiyuan 030001, China
| | - J Cao
- School of Forensic Medicine, Shanxi Medical University, Taiyuan 030001, China
| | - Q Q Jin
- School of Forensic Medicine, Shanxi Medical University, Taiyuan 030001, China
| | - Y Y Wang
- School of Forensic Medicine, Shanxi Medical University, Taiyuan 030001, China
| | - J H Sun
- School of Forensic Medicine, Shanxi Medical University, Taiyuan 030001, China
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Sha X, Ge X, Jin Y, Chen T, Ni X, Zheng W, Ji J, Gu Z. POS0788 CIRCULATING EXOSOMES PROMOTE LUPUS NEPHRITIS IN MRL-LPR MICE. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Systemic Lupus Erythematosus (SLE) is a prototypic autoimmune disease that characterized by the loss of self-tolerance and the production of autoantibodies (autoAbs) [1, 2]. Lupus nephritis (LN), the severe organ-threatening manifestations of SLE, could cause massive damage to patients[3, 4]. Currently, some exosomal microRNAs (miRNAs) are considered as potential biomarkers in SLE. However, the role of exosomal miRNAs in Lupus Nephritis (LN) remains unclear.Objectives:The purpose of this study was to investigate molecular mechanism of plasma exosomal miRNAs in the development of Lupus Nephritis.Methods:Circulating exosomes were isolated from plasma of patients with LN, SLE without LN (NLN). Plasma exosomes were authenticated by Western Blot, Nanosight Tracking Analysis (NTA) and transmission electron microscopy (TEM). Fluorescence microscopy of co-cultured plasma exosomes and podocytes demonstrated that exosomes were uptaken into podocytes. Moreover, cell apoptosis and the inflammation factors was assessed using Western Blot. We analyzed the expression profiles of miRNAs in LN and NLN exosomes and the expression profiles of mRNAs of podocytes stimulated with LN and NLN exosomes with the help of next generation sequencing (NGS).Results:We demonstrate that exosomes derived from LN plasma could be taken by neighboring podocytes and promote the apoptosis of podocytes and the expression of inflammation factors. In addition, the sequencing found that miRNAs were differentially expressed in LN and NLN exosomes and mRNAs were differentially expressed in podocytes stimulated with LN and NLN exosomes.Conclusion:LN plasma exosomes have a potency to stimulate the apoptosis of podocytes and the expression of inflammation factors. Moreover, differentially expressed miRNAs in exosomes play a potential role in the development of LN.References:[1]T. Colasanti, A. Maselli, F. Conti, M. Sanchez, C. Alessandri, C. Barbati, D. Vacirca, A. Tinari, F. Chiarotti, A. Giovannetti, F. Franconi, G. Valesini, W. Malorni, M. Pierdominici, E. Ortona, Autoantibodies to estrogen receptor α interfere with T lymphocyte homeostasis and are associated with disease activity in systemic lupus erythematosus, Arthritis and rheumatism, 64 (2012) 778-787.[2]H.A. Al-Shobaili, A.A. Al Robaee, A.A. Alzolibani, Z. Rasheed, Antibodies against 4-hydroxy-2-nonenal modified epitopes recognized chromatin and its oxidized forms: role of chromatin, oxidized forms of chromatin and 4-hydroxy-2-nonenal modified epitopes in the etiopathogenesis of SLE, Disease markers, 33 (2012) 19-34.[3]A. Kaul, C. Gordon, M.K. Crow, Z. Touma, M.B. Urowitz, R. van Vollenhoven, G. Ruiz-Irastorza, G. Hughes, Systemic lupus erythematosus, Nat Rev Dis Primers, 2 (2016) 16039.[4]M.G. Tektonidou, A. Dasgupta, M.M. Ward, Risk of End-Stage Renal Disease in Patients With Lupus Nephritis, 1971-2015: A Systematic Review and Bayesian Meta-Analysis, Arthritis & rheumatology (Hoboken, N.J.), 68 (2016) 1432-1441.Disclosure of Interests:None declared
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Gu X, Jin Y, Li R, Zhang D, Dong C, Zhang Q, Xue Z, Gu Z. AB0343 THE CHARACTERISTICS OF T CELLS IN SYSTEMIC LUPUS ERYTHEMATOSUS PATIENTS WITH ANXIETY BASED ON MACHINE LEARNING. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Systemic lupus erythematosus (SLE) is an autoimmune disease, the immune system of patients to be disordered, especially in T cell subsets1. They were prone to mental diseases, anxiety particularly, which lead to suicide2. The recent study had reported that CD4+ T cells in the peripheral blood played the key role in like anxiety behavior of mice3. Although there showed that the level of serum TNF-α in SLE patients with anxiety was higher than without anxiety4, finding the important special mediators especially in T cell subsets was still necessary for the prevention of anxiety in SLE patients.Objectives:In total, 108 SLE patients, which met the diagnostic criteria of the American Society of rheumatology (v1997), were enrolled in this study from Affilliated Hospital of Nantong University, China. Exclusion criteria included other autoimmune diseases and active infection (including hepatitis B or C virus, Epstein-Barr virus, human immunodeficiency virus or Mycobacterium tuberculosis infection).Methods:We surveyed the abundance of 74 immune cell subpopulations from 108 SLE patients using flow cytometry, and investigated their differences between patients with and without anxiety (24 versus 84). Moreover, machine learning including Lasso regression, Random forest (RF) and Sparsity partial least squares discriminant analysis (sPLS-DA) was employed to build models and futher selected important features for the classification of SLE patients with anxiety.Results:SLE patients with anxiety showed higher body mass index (BMI) and lower quality of life. In their peripheral blood, the proportion of internal cell subsets composition of Th cell and Treg cells changed. By machine learning, we finally found that BMI and PD1-CD28- Treg played important rules to developing lupus anxiety.Conclusion:In this study, machine learning was applied to build models to select the most important T cell subset in SLE patients with anxiety. These findings suggested that BMI and imbalance of PD1-CD28- Treg containing effector memory Treg cells and effector Treg cells mostly played important roles in the development of SLE anxiety.Disclosure of Interests:None declared
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Ge X, Jin Y, Mao Z, Guo Y, Gu Z. POS0401 THE APPLICATION OF MTX-LOADING DNA TETRAHEDRON IN TREATING COLLAGEN-INDUCED ARTHRITIS MICE VIA REGULATING MACROPHAGE. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Rheumatoid arthritis (RA) is a systemic autoimmune disease which mainly affect joints. [1]. Macrophages often infiltrate in the inflammatory joints. Activated macrophages release TNF-α, IL-1β to accelerate tissue damage, is one of the most important targets for RA intervention. The traditional drugs currently used commonly have some disadvantages cannot be bypassed[2], while DNA nanostructure is a new type of drugs have precise design, and likewise takes biological effect together[3]. We synthesized a DNA tetrahedron loaded with MTX and conjugated with HA which targeted to macrophage.Objectives:To verify whether MTX-loading DNA tetrahedron can regulate the apoptosis and polarization of macrophage and finally improve the condition of CIA model mice by while decrease the side effect of MTX.Methods:DNA TET was synthesized by mixing signal strand DNA in TM buffer and heated to 95 °C for 10 min, then cooling to 4 °C. Electrophoresis was applied to confirm the formation of TET. The absorbance of MTX solution was detected by microplate reader to analyze the loading efficiency of MTX into TET. Fluorescence microscope was used to observe the intake of TET into cells. CCK8 experiment was applied to measure the vitality of cells. Flow cytometry was used to detect the apoptosis and polarization. CIA model was established based on DBA/1 mice. Mice were randomly divided into five groups: normal group injected with NS; after established CIA model, CIA group injected with NS, MTX group injected with MTX solution, MTX-TET group injected with MTX-TET NP.Results:We synthesized DNA tetrahedron(A) and used 8% PAGE electrophoresis to confirmed the successfully synthesis(B). Then We found that when TET concentration fixed, the loading MTX concentration gradually increased and saturated at 190μM(C). While completely loading needed at least 4 hours(D). Fluorescence showed that single DNA strand cannot be taken by RAW, while TET can be easily taken by RAW(E). CCK8 showed that empty TET had no obvious effect on cells, while MTX and MTX-TET with equivalent concentration can obviously suppress the vitality(F). Similarly, the apoptosis trial showed that TET can slightly decrease the apoptosis of RAW, MTX and MTX-TET can significantly promote the apoptosis(G). Flow cytometry showed that the MTX-TET can decrease the expression of M1 marker CD80 (H).At last, we treat mice with NS, TET, MTX and MTX-TET once a week after CIA model established, and found that TET have no significantly effect on mice, while MTX and MTX-TET can alleviate the inflammation symptom of paws(I).Conclusion:Conclusions: We synthesized MTX-loading DNA tetrahedron conjugated with HA, and found that the MTX-TET NP have the excellent ability of promote RAW apoptosis and relieve proinflammatory M1 polarization. while also can alleviate the symptom of CIA mice.References:[1]Aletaha D, Smolen JS: Diagnosis and Management of Rheumatoid Arthritis: A Review. JAMA 2018, 320(13):1360-1372.[2]Smolen JS, Aletaha D, McInnes IB: Rheumatoid arthritis. Lancet 2016, 388(10055):2023-2038.[3]Hu Q, Li H, Wang L, Gu H, Fan C: DNA Nanotechnology-Enabled Drug Delivery Systems. Chem Rev 2019, 119(10):6459-6506.Figure 1.Disclosure of Interests:None declared
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Dong C, Gu X, Ji J, Zhang X, Gu Z. OP0073 SINGLE-CELL TRANSCRIPTOMICS UNCOVERS DEFECTIVE BONE MARROW EARLY B CELL DEVELOPMENT IN A SUBSET OF LUPUS PATIENTS ASSOCIATED WITH AGGRAVATED INFLAMMATION. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Systemic lupus erythematosus (SLE) is a systemic autoimmune disease that occurs when the body’s immune system attacks own tissues and organs. B cells play a central role in SLE pathogenesis by producing autoantibodies as well as antibody-independent functions. Peripheral B cell abnormality is well known in lupus patients such as expansions of plasmablasts and atypical memory B cells, which are associated with active diseases. However, little is known about the B cell development in the bone marrow of lupus patients.Objectives:We conduct this survey to explore the disorder of the B cell development in the bone marrow of lupus patients.Methods:In this study, we have performed the scRNASeq to profile the bone marrow B cell compartment in lupus patients and healthy donors.Results:We identified that in a subset of lupus patients, the early B cells (proB and preB cells) were strongly decreased, which were confirmed by flow cytometry in an expanded cohort. Furthermore, bone marrow B cells from these patients showed a strong proinflammatory signature revealed by pathway analysis. Interestingly, BCR repertoire analysis showed that the IGHV-4-34 was highly enriched in these patients, indicating an enhanced B cell tolerance defect. Finally, a panel of proinflammatory cytokines (TNF-a, IL-1a, IL-12p70, IFN-g, et al.) were strongly increased in the bone marrow plasma of these patients compared with early B normal patients and healthy donors, confirming a localized proinflammatory microenvironment.Conclusion:Altogether, the current study has revealed that a defective early B cell development in lupus patients is associated with a more severe B cell tolerance defect and aggravated inflammation, which may shed new light on developing novel therapies by targeting relevant pathways.References:[1]Min Wang, Hua Chen, Jia Qiu, et al. Antagonizing miR-7 suppresses B cell hyperresponsiveness and inhibits lupus development. J Autoimmun 2020.[2]A M Jacobi, D M Goldenberg, F Hiepe, et al. Differential effects of epratuzumab on peripheral blood B cells of patients with systemic lupus erythematosus versus normal controls. Ann Rheum Dis, 2008.Acknowledgements:This work was funded by Special project of clinical medicine of Nantong University (Grant/Award number: 2019LQ001), National Natural Science Foundation of China (Grant/Award number: 81671616, 81871278 and 82071838).Disclosure of Interests:None declared
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Sun J, Zheng W, Zhang Y, Gu Z. AB0639 EXOSOMES DERIVED FROM ENDOTHELIAL CELLS PREVENT OSTEOBLAST APOPTOSIS IN STEROID-INDUCED OSTEONECROSIS OF THE FEMORAL HEAD RAT MODEL VIA THE PI3K/AKT/Bcl-2 SIGNAL PATHWAY. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Osteonecrosis of the femoral head (ONFH) is a common disease caused by many trauma factors and un-trauma factors. Among those un-trauma factors, steroid-induced osteonecrosis of the femoral head (SNFH) accounted for a large proportion and mainly concentrated in young people. SNFH has been reported as an irreversible disease and associated with the damage of blood vessels and the loss balance of bone homeostasis. Circulating endothelial progenitor cells (CEPCs), one part of circulating endothelial cells (CECs), are immature precursor cells with proliferative potential. The damage of vascular endothelial cells in SNFH has been confirmed by many studies, but the changes of CECs and CEPCs in the peripheral blood of patients with SNFH have not been studied yet.Objectives:The objective of the study is to explore the number of CECs and CEPCs in SNFH patients and normal people and then investigate whether EC-secreted exosomes (EC-exos) could prevent the progression of SNFH in rat model and its mechanism of action.Methods:We collect peripheral blood of 3 SNFH patients and 3 heathy people and detected the levels of CECs and CEPCs by Flow cytometer. TEM, NTA and western blot was used to characterize the isolated EC-exos. Annexin V-FITC/PI double staining with flow cytometric analysis and western blot were used to evaluate MC3T3-E1 cells apoptosis. CCK-8, scratching experiment and transwell were used to evaluate MC3T3-E1 cells viability and migration ability. Micro-CT and morphological staining were used to evaluate the progress of SNFH in rat model.Results:Firstly, we found that the number of CECs and CEPCs in the peripheral blood was decreased in SNFH patients than normal people. Then our results indicated that EC-exos could improve the migration, viability and prevent apoptosis of osteoblasts under dexamethasone by activating the PI3K/AKT/Bcl-2 signal pathway in vitro. Finally, our Micro-CT and morphological staining results in SNFH rat model revealed that EC-exos prevented the progression of SNFH.Conclusion:EC-exos could enhance the cell viability and migration ability of osteoblasts under dexamethasone and play an anti-apoptosis role against steroids-induced osteoblast apoptosis by activating the PI3K/AKT/Bcl-2 signal pathway. EC-exos prevented the progression of SNFH in rat model.References:[1]Zalavras CG, Lieberman JR. Osteonecrosis of the femoral head: evaluation and treatment. J Am Acad Orthop Surg. 2014;22(7):455-64.[2]Microsurgery Department of the Orthopedics Branch of the Chinese Medical Doctor A, Group from the O, Bone Defect Branch of the Chinese Association of R, Reconstructive S, Microsurgery, Reconstructive Surgery Group of the Orthopedics Branch of the Chinese Medical A. Chinese Guideline for the Diagnosis and Treatment of Osteonecrosis of the Femoral Head in Adults. Orthop Surg. 2017;9(1):3-12.[3]Mont MA, Jones LC, Hungerford DS. Nontraumatic osteonecrosis of the femoral head: ten years later. J Bone Joint Surg Am. 2006;88(5):1117-32.[4]Yuan HF, Zhang J, Guo CA, Yan ZQ. Clinical outcomes of osteonecrosis of the femoral head after autologous bone marrow stem cell implantation: a meta-analysis of seven case-control studies. Clinics (Sao Paulo). 2016;71(2):110-3.[5]Houdek MT, Wyles CC, Packard BD, Terzic A, Behfar A, Sierra RJ. Decreased Osteogenic Activity of Mesenchymal Stem Cells in Patients With Corticosteroid-Induced Osteonecrosis of the Femoral Head. J Arthroplasty. 2016;31(4):893-8.Disclosure of Interests:None declared.
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Bao Y, Ji J, Xue Z, Gu Z. POS0787 BERBERINE MODULATE LUPUS SYNDROME VIA THE REGULATION OF GUT MICROBIOTA IN MRL/LPR MICE. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Intestinal flora disorder and immune abnormalities have been reported in systemic lupus erythematosus (SLE) patients1,2. Berberine (BBR) showed significant effects in regulating the intestinal flora, repairing gut barriers and regulating immune cells3,4. While few reports mentioned the abnormal gut microbiota and metabolites in Chinese SLE patients.Objectives:Our investigation tried to illustrate the relationship between gut microbiota, intestinal metabolites and disease activity in Chinese SLE patients. And the effect of BBR to intestinal dysbacteriosis, multiple organ damages and over-activated immune system in MRL/Lpr mice.Methods:16S high-throughput (16S rRNA) sequence, qRT-PCR and gas chromatography technology were used to determine the gut microbiota and metabolites in 104 SLE patients from Affiliated Hospital of Nantong University, China. BBR was orally treated to the MRL/Lpr mice in low, medium and high doses. After 6 weeks treatment, mice were sacrificed. Serum, faeces and organs were collected for further studies.Results:Chinese SLE patients showed higher abundance of Bacteroidetes and lower abundance of Firmcutes. The results of qRT-PCR showed high Firmcutes/Bacteroidetes (F/B) ratio of SLE patients. The F/B ratio was negative correlated with SLE disease activity index (SLEDA) score. Almost all the tested short-chain fatty acids (SCFAs) found statistically significant results in SLE and LN (lupus nephritis) patients, especially the propanoic acid and butyric. BBR altered the relative abundance of Bacteroides and Verrucomicrobia and the butyric acid content in colon of MRL/Lpr mice. The increase of tight junction protein also indicated the gut barrier was repaired by BBR. Treg and Tfr cells in spleen and mesenteric lymph node (MLN) were increased. These results revealed a positive therapeutic effect of berberine on SLE from gut microbiota to immune status.Conclusion:Our study highlights current status of intestinal dysbacteriosis in Chinese patients with SLE and differences in intestinal metabolites among patients with different disease states. The regulation of intestinal flora and the repairment of gut barrier by intestinal metabolites in BBR treated mice seemed to be the factor that directed the immune responses and disease outcomes. The ultimate goal of our study was to determine the beneficial effects of regulating the gut microbiota on the treatment of SLE. The application of berberine is a relatively safe and convenient way. In the coming investigations, we plan to focus on the study of berberine and its metabolites on intestinal function and systemic immunity.References:[1]Guo, M. et al. Alteration in gut microbiota is associated with dysregulation of cytokines and glucocorticoid therapy in systemic lupus erythematosus. Gut microbes11, 1758-1773, doi:10.1080/19490976.2020.1768644 (2020).[2]Mu, Q. et al. Control of lupus nephritis by changes of gut microbiota. Microbiome5, 73, doi:10.1186/s40168-017-0300-8 (2017).[3]Habtemariam, S. Berberine pharmacology and the gut microbiota: A hidden therapeutic link. Pharmacological research155, 104722, doi:10.1016/j.phrs.2020.104722 (2020).[4]Cui, H. et al. Berberine Regulates Treg/Th17 Balance to Treat Ulcerative Colitis Through Modulating the Gut Microbiota in the Colon. Frontiers in pharmacology9, 571, doi:10.3389/fphar.2018.00571 (2018).Figure 1.Disclosure of Interests:None declared
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Fu T, Yang Y, Gu X, Dong C, Zhao R, Ji J, Xue Z, Zhang X, Gu Z. POS0761 INVESTIGATION ON THE EFFECT AND MECHANISM OF ABNORMALLY ACTIVATED CD8+ T CELLS FROM BONE MARROW ON HEMATOPOIETIC STEM CELLS IN PATIENTS WITH SYSTEMIC LUPUS ERYTHEMATOSUS. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:SLE is an autoimmune disease characterized by the abnormal function of lymphocytes. The impairment of hematopoietic function of bone marrow participates in its pathogenesis, in which T cells play an important role. However, study on bone marrow T cells in SLE patients is very limited.Objectives:This study aims to characterize the phenotype and molecular characteristics of abnormally activated CD8+T cells in bone marrow of SLE patients and explore the mechanism of hematopoietic stem cells (HSCs) reduction caused by the abnormally activated CD8+T cells in bone marrow of patients with SLE.Methods:A total of 8 SLE patients and 5 age- and sex-matched controls were recruited in our study. Among them, 3 SLE patients and 4 donors were collected bone marrow and peripheral blood samples for Single-cell RNA sequencing (scRNA-seq) and functional studies. BM and peripheral T cell subsets were measured by flow cytometry. Plasma cytokines and secreted immunoglobulins were detected by Luminex. Disease activity of SLE patients was measured using the SLE Disease Activity Index (SLEDAI). All analyses were performed using R language and Flowjo 9.Results:In the present study, SLE patients had increased CD8+T%αβT cells and decreased CD4+T%αβT cells in bone marrow of SLE, compared to healthy controls. A large number of CD38+HLADR+CD8+T cells existed in the bone marrow and peripheral blood of SLE patients. Those patients also showed reduced number of HSCs, and with a downward trend of the numbers of peripheral red blood cells, white blood cells, neutrophils, hemoglobin, and platelets. By scRNA-seq, the CD38+HLADR+CD8+T cells contained high levels of GZMK, GZMA, PRF1, IFNG, and TNF in the bone marrow of SLE patients. the CD38+HLADR+CD8+T cells exhibited significant relationship with HSCs, white blood cells, neutrophils, and platelets.Conclusion:These findings demonstrated that the abnormally activated CD8+T cells in bone marrow can reduce the number of HSCs by the expression of killer molecules, which contributes to the impairment of hematopoietic function and the development of SLE. This project focuses on the specific bone marrow T cell subset in SLE. The completement of this project provides information for exploring the mechanism of hematopoiesis involvement.References:[1]Anderson E, Shah B, Davidson A, Furie R. Lessons learned from bone marrow failure in systemic lupus erythematosus: Case reports and review of the literature. Semin Arthritis Rheum. 2018;48(1):90-104.[2]Sun LY, Zhou KX, Feng XB, Zhang HY, Ding XQ, Jin O, Lu LW, Lau CS, Hou YY, Fan LM. Abnormal surface markers expression on bone marrow CD34+cells and correlation with disease activity in patients with systemic lupus erythematosus. Clin Rheumatol. 2007;26(12):2073-2079.Acknowledgements:We want to thank Lu Meng, Teng Li, Wei Zhou, and Jiaxin Guo for their assistance with this study.Disclosure of Interests:None declared
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Feng G, Huang L, Ji J, Dong C, Xia Y, Cheng C, Gu Z. POS0785 CHANGING EXPRESSION PROFILES OF LONG NONCODING RNAS, MIRNAS, MRNAS AND CIRCULAR RNAS IN LABIAL SALIVARY GLANDS OF PRIMARY SJÖGREN’S SYNDROME (PSS). Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Primary Sjögren’s syndrome (pSS) is a relatively common autoimmune disease characterized by oral and ocular dryness. An increasing number of studies have revealed that long non-coding RNA (lncRNA), miRNA, mRNA and circular RNA (circRNA) contributes to the pathogenesis of autoimmune diseases.Objectives:To explore lncRNA, miRNA, mRNA and circRNA expression profiles in labial salivary glands (LSGs) in pSS patients and their biological functions in the regulation of pSS.Methods:The expression of 75,550 lncRNAs, 2,318 miRNA, 20,292 mRNAs and 6,877 circRNAs were determined in the LSG of six pSS patients and six healthy controls using microarray experiments. Validation was performed in pSS patients and controls using real-time PCR. LncRNA-mRNA co-expression and gene-pathway networks were constructed using bioinformatics software.Results:A total of 599 lncRNAs (upregulated: 279, downregulated: 320), 78 miRNAs (upregulated: 26, downregulated: 52), 615 mRNAs (upregulated: 590, downregulated: 25) and 160 mRNAs (upregulated: 110, downregulated: 50) were differentially expressed in the LSGs of pSS patients. Five of these lncRNAs were validated using real-time PCR. lncRNA HCP5, lncRNA SNHG5, lncRNA IFI44L, lncRNA CMPK2 were significantly upregulated and lncRNA TTYH1 were downregulated in pSS. GO and KEGG biological pathway analysis were performed to predict the functions of differentially expressed lncRNAs and co-expressed potential targeting genes. Subsequently, a ceRNA (lncRNA-miRNA-mRNA) network including 2320 ceRNA pairs was constructed based on predicted miRNAs shared by lncRNAs and mRNAs.Conclusion:The expression profile provided a systematic perspective on the potential functions of lncRNAs miRNAs, mRNAs and circRNAs in the pathogenesis of pSS. Therefore, this study will aid in the development of new diagnostic biomarkers and drug therapies.References:[1]Le Dantec C, Varin MM, Brooks WH, Pers JO, Youinou P, Renaudineau Y. Epigenetics and Sjogren’s syndrome.Curr Pharm Biotechnol. 2012 Aug;13(10):2046-53.Disclosure of Interests:None declared
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He M, Zhou W, Guo J, Liu J, Dong C, Zhao R, Gu Z. AB0146 HAND AND WRIST ACTIVE RANGE OF MOTIONS AND CONTRIBUTING FACTORS IN RHEUMATOID ARTHRITIS: A CROSS-SECTIONAL STUDY. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3763] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Patients with rheumatoid arthritis (RA) usually impaired range of motions (ROMs), especially hand and wrist active ROMs (AROMs), thus influencing their ability to perform daily activities and health-related quality of life (HR-QoL). However, little is known about the potential factors of reduced hand and wrist AROMs and their relations to quality of life in Chinese RA patients.Objectives:To explore the contributing factors of hand and wrist AROMs and their associations with HR-QoL and functional limitation in Chinese RA population.Methods:In this cross-sectional study, 108 patients were enrolled from Affiliated Hospital of Nantong University between November 2018 and July 2019. We measured all the participants’ AROMs with different directions of the hand and wrist in both sides, including volar flexion, ulnar deviation, radial deviation and radial deviation of the wrist joint, the first metacarpophalangeal (MCP1) flexion, interphalangeal (IP) flexion, volar abduction, radial abduction and thumb opposition (cm) in the thumb, average flexion, hypertension and abduction of the MCP2-5, average proximal interphalangeal (PIP) 2-5 and distal interphalangeal (DIP) 2-5 flexions, total active range of motion (TAM) of the second to the fifth fingers (TAM2-TAM5). Their sociodemographic, physical, psychological, disease-related data, acute phase reactants, laboratory indicators, drug usage and HR-QoL were examined as well. Statistical analysis used Pearson’s and Spearman’s correlation analysis, univariate and multivariate linear regression analyses.Results:In univariate analyses, we found that living in rural area, longer disease duration, comorbidity, hospitalization, more swollen joints, higher disease activity, pain level, C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), red blood cell count and glucocorticoids usage were associated with most of the decreased hand and wrist AROMs (P ≤ 0.050), while higher education and annual income were related to most of the increased hand and wrist AROMs (P ≤ 0.048). In multivariate analyses, higher disease duration (P ≤ 0.023) and higher disease activity (P ≤ 0.033) were corelated with most of the decreased hand and wrist AROMs. Interestingly, the psychological factor, anxiety, was only positively associated with thumb opposition in both univariate and multivariate analyses (P ≤ 0.001). Additionally, most of the declined hand and wrist AROMs were associated with functional impairment and poor HR-QoL, especially in physical components (P < 0.05).Conclusion:Various factors, especially longer disease duration and higher disease activity, were related to decreased hand and wrist AROMs, and thus causing functional impairment and poor HR-QoL in RA patients. Clinical physicians and medical faculties should pay more attention to disease activity and disease-related symptoms of these patients in order to maintain their activity of daily living (ADL) ability and improve HR-QoL.References:[1]Rheumatoid arthritis. Nat Rev Dis Primers. 2018;4:18002.[2]Zhang L, Cao H, Zhang Q, Fu T, Yin R, Xia Y, et al. Motion analysis of the wrist joints in Chinese rheumatoid arthritis patients: a cross-sectional study. BMC Musculoskelet Disord. 2018;19(1):270.Acknowledgements:This work was funded by Postgraduate Research & Practice Innovation Program of Jiangsu Province (Grant/Award number: KYCX19_2071), National Natural Science Foundation of China (Grant/Award number: 81871278, Science and technology Project of Jiangsu Province (Grant/Award number: BE2018671)Disclosure of Interests:None declared
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Pei J, Schuldt M, Nagyova E, Gu Z, El Bouhaddani S, Yiangou L, Jansen M, Calis JJA, Dorsch LM, Blok CS, van den Dungen NAM, Lansu N, Boukens BJ, Efimov IR, Michels M, Verhaar MC, de Weger R, Vink A, van Steenbeek FG, Baas AF, Davis RP, Uh HW, Kuster DWD, Cheng C, Mokry M, van der Velden J, Asselbergs FW, Harakalova M. Multi-omics integration identifies key upstream regulators of pathomechanisms in hypertrophic cardiomyopathy due to truncating MYBPC3 mutations. Clin Epigenetics 2021; 13:61. [PMID: 33757590 PMCID: PMC7989210 DOI: 10.1186/s13148-021-01043-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 09/30/2020] [Accepted: 02/28/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Hypertrophic cardiomyopathy (HCM) is the most common genetic disease of the cardiac muscle, frequently caused by mutations in MYBPC3. However, little is known about the upstream pathways and key regulators causing the disease. Therefore, we employed a multi-omics approach to study the pathomechanisms underlying HCM comparing patient hearts harboring MYBPC3 mutations to control hearts. RESULTS Using H3K27ac ChIP-seq and RNA-seq we obtained 9310 differentially acetylated regions and 2033 differentially expressed genes, respectively, between 13 HCM and 10 control hearts. We obtained 441 differentially expressed proteins between 11 HCM and 8 control hearts using proteomics. By integrating multi-omics datasets, we identified a set of DNA regions and genes that differentiate HCM from control hearts and 53 protein-coding genes as the major contributors. This comprehensive analysis consistently points toward altered extracellular matrix formation, muscle contraction, and metabolism. Therefore, we studied enriched transcription factor (TF) binding motifs and identified 9 motif-encoded TFs, including KLF15, ETV4, AR, CLOCK, ETS2, GATA5, MEIS1, RXRA, and ZFX. Selected candidates were examined in stem cell-derived cardiomyocytes with and without mutated MYBPC3. Furthermore, we observed an abundance of acetylation signals and transcripts derived from cardiomyocytes compared to non-myocyte populations. CONCLUSIONS By integrating histone acetylome, transcriptome, and proteome profiles, we identified major effector genes and protein networks that drive the pathological changes in HCM with mutated MYBPC3. Our work identifies 38 highly affected protein-coding genes as potential plasma HCM biomarkers and 9 TFs as potential upstream regulators of these pathomechanisms that may serve as possible therapeutic targets.
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Affiliation(s)
- J Pei
- Division Heart and Lungs, Department of Cardiology, University Medical Center Utrecht, University of Utrecht, 3584 CT, Utrecht, The Netherlands
- Regenerative Medicine Utrecht (RMU), University Medical Center Utrecht, University of Utrecht, 3584 CT, Utrecht, The Netherlands
- Department of Nephrology and Hypertension, DIG-D, UMC Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - M Schuldt
- Department of Physiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - E Nagyova
- Laboratory of Clinical Chemistry and Hematology, UMC Utrecht, Utrecht, The Netherlands
| | - Z Gu
- Department of Biostatistics and Research Support, UMC Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - S El Bouhaddani
- Department of Biostatistics and Research Support, UMC Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - L Yiangou
- Department of Anatomy and Embryology, LUMC, Leiden, The Netherlands
| | - M Jansen
- Department of Genetics, Division of Laboratories, Pharmacy and Biomedical Genetics, UMC Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - J J A Calis
- Division Heart and Lungs, Department of Cardiology, University Medical Center Utrecht, University of Utrecht, 3584 CT, Utrecht, The Netherlands
- Regenerative Medicine Utrecht (RMU), University Medical Center Utrecht, University of Utrecht, 3584 CT, Utrecht, The Netherlands
| | - L M Dorsch
- Department of Physiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - C Snijders Blok
- Division Heart and Lungs, Department of Cardiology, University Medical Center Utrecht, University of Utrecht, 3584 CT, Utrecht, The Netherlands
| | - N A M van den Dungen
- Laboratory of Clinical Chemistry and Hematology, UMC Utrecht, Utrecht, The Netherlands
| | - N Lansu
- Laboratory of Clinical Chemistry and Hematology, UMC Utrecht, Utrecht, The Netherlands
| | - B J Boukens
- Department of Medical Biology, AMC, Amsterdam, The Netherlands
| | - I R Efimov
- Department of Biomedical Engineering, GWU, Washington, DC, USA
| | - M Michels
- Department of Cardiology, Thoraxcentre, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - M C Verhaar
- Regenerative Medicine Utrecht (RMU), University Medical Center Utrecht, University of Utrecht, 3584 CT, Utrecht, The Netherlands
- Department of Nephrology and Hypertension, DIG-D, UMC Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - R de Weger
- Department of Pathology, UMC Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - A Vink
- Department of Pathology, UMC Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - F G van Steenbeek
- Division Heart and Lungs, Department of Cardiology, University Medical Center Utrecht, University of Utrecht, 3584 CT, Utrecht, The Netherlands
- Regenerative Medicine Utrecht (RMU), University Medical Center Utrecht, University of Utrecht, 3584 CT, Utrecht, The Netherlands
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Utrecht, Utrecht, The Netherlands
| | - A F Baas
- Department of Genetics, Division of Laboratories, Pharmacy and Biomedical Genetics, UMC Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - R P Davis
- Department of Anatomy and Embryology, LUMC, Leiden, The Netherlands
| | - H W Uh
- Department of Biostatistics and Research Support, UMC Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - D W D Kuster
- Department of Physiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - C Cheng
- Regenerative Medicine Utrecht (RMU), University Medical Center Utrecht, University of Utrecht, 3584 CT, Utrecht, The Netherlands
- Department of Nephrology and Hypertension, DIG-D, UMC Utrecht, University of Utrecht, Utrecht, The Netherlands
- Department of Biomedical Engineering, GWU, Washington, DC, USA
| | - M Mokry
- Division Heart and Lungs, Department of Cardiology, University Medical Center Utrecht, University of Utrecht, 3584 CT, Utrecht, The Netherlands
- Regenerative Medicine Utrecht (RMU), University Medical Center Utrecht, University of Utrecht, 3584 CT, Utrecht, The Netherlands
- Laboratory of Clinical Chemistry and Hematology, UMC Utrecht, Utrecht, The Netherlands
- Division of Paediatrics, UMC Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - J van der Velden
- Department of Physiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - F W Asselbergs
- Division Heart and Lungs, Department of Cardiology, University Medical Center Utrecht, University of Utrecht, 3584 CT, Utrecht, The Netherlands.
- Health Data Research UK and Institute of Health Informatics, University College London, London, UK.
- Institute of Cardiovascular Science, Faculty of Population Health Sciences, University College London, London, UK.
- Division Heart and Lungs, Department of Cardiology, University Medical Center Utrecht, Room E03.818, P.O. Box 85500, 3508 GA, Utrecht, The Netherlands.
| | - M Harakalova
- Division Heart and Lungs, Department of Cardiology, University Medical Center Utrecht, University of Utrecht, 3584 CT, Utrecht, The Netherlands.
- Regenerative Medicine Utrecht (RMU), University Medical Center Utrecht, University of Utrecht, 3584 CT, Utrecht, The Netherlands.
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Bao F, Gu Z, Wang R, Wang Y, Lin B, Yu F, Hao X, Chen C, Fang W. P02.17 Feasibility and Safety of ENB Guided Microwave Ablation for Lung Cancer: A Preliminary Report. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.365] [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: 10/21/2022]
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Wang L, Xi D, Xiong H, Memon S, Li G, Gu Z, Nadir S, Deng W. Microsatellite markers reveal polymorphisms at the 3′ untranslated region of the SLC11A1 gene in Zhongdian Yellow cattle ( Bos taurus). Can J Anim Sci 2021. [DOI: 10.1139/cjas-2018-0231] [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] [Indexed: 11/22/2022]
Abstract
Solute carrier family 11-member A1 (SLC11A1) gene encodes natural macrophage resistance-associated protein which regulates activity of macrophages against intracellular pathogens. The objective of this study was to study the polymorphism in the microsatellites present at 3′ untranslated region (UTR) of the SLC11A1 gene in 113 Zhongdian Yellow cattle (Bos taurus). Using DNA bi-directional sequencing, we detected seven alleles (GT10–16) for the first microsatellite (MS1), five alleles (GT12–16) for MS2, and four alleles (GT4–7) for MS3. MS3 is studied for the first time and revealed four novel variants (alleles GT4–7). Alleles GT12 (45.1%), GT13 (59.3%), and GT5 (85.4%) were the most frequent alleles at MS1, MS2, and MS3, respectively, Genotypes G12/12, G13/13, and G5/5 had the highest frequency 0.239, 0.540, and 0.743 at MS1, MS2, and MS3, respectively. Haplotypic data revealed that GT12/GT13 was the most frequent haplotype observed followed by GT12/14 haplotype. Three nucleotide variations were observed in MS1 and MS2. Comparative analysis of GT12/GT12 and GT13/GT13 genotype with other bovine genotypes showed significant difference (P > 0.05). Our results suggest that the homozygous genotypes GT12/GT12 and GT13/GT13 in Zhongdian Yellow cattle might be related to disease resistance. The findings reported in this study would be helpful in cattle breeding programs.
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Affiliation(s)
- L. Wang
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
- Department of Life Science and Technology, Xinxiang University, Xinxiang 453003, People’s Republic of China
| | - D. Xi
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
| | - H. Xiong
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
- Yunnan Animal Science and Veterinary Institute, Kunming 650224, People’s Republic of China
| | - S. Memon
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
- Yunnan Animal Science and Veterinary Institute, Kunming 650224, People’s Republic of China
| | - G. Li
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
| | - Z. Gu
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
| | - S. Nadir
- University of Science and Technology Bannu, Bannu 28100, Pakistan
| | - W. Deng
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
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Mundie A, Lazarou M, Mullens AB, Gu Z, Dean JA. Sexual and reproductive health knowledge, attitudes and behaviours of Chinese international students studying abroad (in Australia, the UK and the US): a scoping review. Sex Health 2021; 18:294-302. [PMID: 34399883 DOI: 10.1071/sh21044] [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] [Received: 03/01/2021] [Accepted: 06/11/2021] [Indexed: 11/23/2022]
Abstract
International students within Australia are disproportionately affected by adverse sexual and reproductive health (SRH) outcomes. Chinese international students represent the majority of international students in Australia, and a large proportion of students in other high-income countries such as the United States and the United Kingdom, making them an important priority group. However, the SRH issues of this priority group have received little attention from international researchers. This review provides an overview of global studies surrounding the SRH knowledge, attitudes and behaviours of Chinese international students studying abroad. Ten articles were deemed relevant and findings from both the qualitative and quantitative data synthesis were categorised into six codes: (1) knowledge; (2) sources of information; (3) attitudes; (4) behaviours; (5) barriers; and (6) recommendations. The findings provide valuable understanding to inform the development of targeted, culturally sensitive and inclusive health promotion initiatives and policies. It is recommended that further research is conducted in this field to reduce evident health disparities.
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Affiliation(s)
- Arabella Mundie
- School of Public Health, University of Queensland, 266 Herston Road, Brisbane, Qld 4006, Australia; and Corresponding author.
| | - Mattea Lazarou
- School of Public Health, University of Queensland, 266 Herston Road, Brisbane, Qld 4006, Australia
| | - Amy B Mullens
- School of Psychology & Counselling, Centre for Health Research, University of Southern Queensland, 11 Salisbury Road, Ipswich, Qld 4305, Australia
| | - Zhihong Gu
- Ethnic Communities Council of Queensland (ECCQ), 253 Boundary Street, West End, Brisbane, Qld 4101, Australia
| | - Judith A Dean
- School of Public Health, University of Queensland, 266 Herston Road, Brisbane, Qld 4006, Australia
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Zhang Y, Zhang Y, Xu L, Wang H, Shao F, Yu J, Gilbert E, Gu Z. Molecular cloning, tissue expression and polymorphism analysis of the Caveolin-3 gene in ducks. Br Poult Sci 2020; 62:17-24. [PMID: 32873059 DOI: 10.1080/00071668.2020.1817324] [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] [Indexed: 10/23/2022]
Abstract
1. Duck meat is considered a delicacy, but choosing the best meat is problematic. Caveolin-3 (CAV-3) is a muscle-specific protein marker in animals. The goal of the current study was to detect the characteristics of CAV-3 gene in ducks. 2. Full-length CAV-3 was acquired from ducks (Anas platyrhynchos) using reverse transcriptase PCR and rapid amplification of cDNA ends. DNAMAN software was used for homology comparisons. Quantitative reverse transcription-PCR, PCR-single-strand conformation polymorphism, and sequencing were used to determine CAV-3 expression and polymorphism of a single nucleotide, respectively. The study examined four types of ducks, including Jinding, Chaohu, Cherry Valley, and Gaoyou ducks. 3. The study acquired 1066 bp of CAV-3 cDNA sequences, including a 456 bp complete open reading frame encoding 151 amino acids. Both coding sequences (CDSs) and translated amino acids exhibited highest homology with Gallus gallus (CDS homology 91.67%, amino acids 94.04%), followed by mammalian species (CDS homology 79.0%, amino acids 78.0%). Single nucleotide polymorphism analysis revealed five mutations in exons (A489G, G501A, A557G, T563A, and A602G), and a C805T mutation in an intron. Among amplified polymorphic loci detected using primer 2, allele frequency was higher for A (489A501G507A563T602A) than B (489G501G507G563T602C) or C (489G501A507G563A602C). The highest occurred in Cherry Valley ducks (0.7587). Using primer 4, the M allele frequency was higher than that of the N allele. CAV-3 was most highly expressed in the heart, followed by skeletal muscles. Additionally, CAV-3 had higher expression in heart and breast muscle of overfed Muscovy ducks than control ducks, but no difference was seen in thigh muscle. 4. CAV-3 in ducks had the highest homology with Gallus gallus CAV-3, and it could be used as a marker for muscle quality in ducks.
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Affiliation(s)
- Y Zhang
- School of Biology and Food Engineering, Changshu Institute of Technology , Changshu, PR China
| | - Y Zhang
- School of Biology and Food Engineering, Changshu Institute of Technology , Changshu, PR China
| | - L Xu
- School of Biology and Food Engineering, Changshu Institute of Technology , Changshu, PR China
| | - H Wang
- School of Biology and Food Engineering, Changshu Institute of Technology , Changshu, PR China
| | - F Shao
- School of Biology and Food Engineering, Changshu Institute of Technology , Changshu, PR China
| | - J Yu
- School of Biology and Food Engineering, Changshu Institute of Technology , Changshu, PR China
| | - E Gilbert
- Department of Animal and Poultry Science, Virginia Polytechnic Institute and State University , Blacksburg, VA, USA
| | - Z Gu
- School of Biology and Food Engineering, Changshu Institute of Technology , Changshu, PR China
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Zhang Y, Zhou L, Yao Y, Liu Y, Zhao F, Wu H, Gu Z. Structural Characterization of a Mn(II)-Based Coordination Polymer and Application of Its Nanoparticles for the Protective Effect in Peri-Implantitis Therapy by Enhancing the Immune Cell Response. J STRUCT CHEM+ 2020. [DOI: 10.1134/s0022476620050169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Wang Y, Zhao R, Gu Z, Dong C, Guo G, Li L. Effects of glucocorticoids on osteoporosis in rheumatoid arthritis: a systematic review and meta-analysis. Osteoporos Int 2020; 31:1401-1409. [PMID: 32291467 DOI: 10.1007/s00198-020-05360-w] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 02/19/2020] [Indexed: 12/19/2022]
Abstract
We evaluated the effects of glucocorticoids on bone mineral density (BMD), and prevalence of osteoporosis and fracture in rheumatoid arthritis (RA) by meta-analysis. Until June 26, 2019, we conducted a systematic literature search in EMBASE, Web of science, PubMed, and Cochrane Library to obtain BMD and the prevalence of osteoporosis and fracture in glucocorticoid-treated subjects with RA. The BMD of the treatment and control groups were analyzed by meta-analysis (Stata. version 15), and the 95% confidence interval (CI) was calculated. We identified 15 observational studies, including 46,711 RA subjects and 857 healthy controls. The BMD of the lumbar spine (- 0.038 g/cm2; CI, - 0.052, - 0.024) and femoral neck (- 0.017 g/cm2; - 0.030, - 0.003) in RA treated with glucocorticoids were significantly lower than those in RA controls. Compared with healthy control group, the BMD of the lumbar spine (- 0.094 g/cm2; - 0.126, - 0.061) and femoral neck (- 0.097 g/cm2, - 0.109, - 0.085) of RA treated with glucocorticoids decreased more significantly. The prevalence of osteoporosis in whole body, spine, and femur was 38.6% (0.305, 0.466), 32.9% (0.277, 0.381), and 21.7% (0.106, 0.328), respectively. And the prevalence of vertebral fracture was 13.0% (0.058, 0.203). Glucocorticoids may lead to a decline in skeletal health in subjects with RA, especially in vertebral and femoral BMD, compared with normal people or RA without glucocorticoid therapy. Meanwhile, osteoporosis and fractures were also common. Therapeutic measures should be targeted at individuals, which needs further study. Through meta-analysis, we found that glucocorticoids have some negative effects on the bone health of subjects with rheumatoid arthritis. Therefore, when using glucocorticoids to treat rheumatoid arthritis, we should take strategic measures to prevent the decline of bone quality.
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Affiliation(s)
- Y Wang
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, China
- Department of Nursing, Affiliated Hospital of Nantong University, Nantong, China
| | - R Zhao
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, China
- Department of Nursing, Affiliated Hospital of Nantong University, Nantong, China
| | - Z Gu
- Research Center of Gerontology and Longevity, Affiliated Hospital of Nantong University, Nantong, China
- Department of Rheumatology, Affiliated Hospital of Nantong University, 20th Xisi Road, Nantong, 226001, Jiangsu Province, People's Republic of China
| | - C Dong
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, China
- Research Center of Gerontology and Longevity, Affiliated Hospital of Nantong University, Nantong, China
| | - G Guo
- Department of Rheumatology, Affiliated Hospital of Nantong University, 20th Xisi Road, Nantong, 226001, Jiangsu Province, People's Republic of China.
| | - L Li
- Department of Gastroenterology, Affiliated Hospital of Nantong University, 20th Xisi Road, Nantong, 226001, Jiangsu Province, People's Republic of China.
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Zhou W, He M, Zhao R, Dong C, Gu Z. AB1331-HPR ACTIVE DISEASE ACTIVITY IN ANKYLOSIS SPONDYLITIS: WORSE OUTCOMES AND POORER HR-QOL. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.6288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Ankylosing spondylitis (AS) is a chronic inflammatory disease that mainly affects the sacroiliac joints and the spine, resulting in decline in quality of life[1,2]. Poor QoL is significantly related to high disease activity[3]. However, there is no systematic report on which prognosis indicators are affected by disease activity in AS patients.Objectives:This study aimed to evaluate the patient-reported outcome measures and health-related quality of life (HR-QoL) in AS patients defined on the basis of the Bath Spondylitis Ankylosing Disease Activity Index (BASDAI).Methods:204 AS patients were involved in this study. A serious of questionnaires were used to overall assess AS patients, which include: Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), Bath Ankylosing Spondylitis Metrology Index (BASMI), Bath Ankylosing Spondylitis Functional Index (BASFI), the 10 cm Visual Analog Scale (VAS), the Self-Rating Anxiety Scale (SAS), the Self-Rating Depression Scale (SDS), the Pittsburgh Sleep Quality Index (PSQI), the Health Assessment Questionnaire-Disability Index (HAQ-DI), the Fatigue Severity Scale(FSS) and the Short Form 36 Health Survey (SF-36). Independent samples t-test, Mann–Whitney U-test, Chi-square analysis and Pearson /Spearman correlation were used to analyze the data.Results:The results demonstrated 31.4% AS patients were in active disease activity stage. Active AS patients were older, unemployed, and had less exercise therapy than stable AS patients. Besides, AS patients with active disease activity presented more severe pain(P<0.001), poor physical function(P<0.001) and spinal mobility(P<0.001). They were more anxious(P<0.001), depressed(P<0.001) and had more sleep disturbance(P=0.001). Compared with active AS patients, stable AS patients had more leukocytes(P=0.040), lymphocytes(P=0.002), erythrocytes(P=0.001) and hemoglobin(P<0.001). Active disease activity had a significant impact on all dimensions of quality of life in AS patients(P<0.001).Conclusion:These findings suggested that medical personnel should pay more attention to active AS patients and make effective interventions to improve quality of life.References:[1]Exarchou S, Lindstrom U, Askling J, Eriksson JK, Forsblad-d’Elia H, Neovius M, Turesson C, Kristensen LE, Jacobsson LT (2015) The prevalence of clinically diagnosed ankylosing spondylitis and its clinical manifestations: a nationwide register study. Arthritis research & therapy 17:118. doi:10.1186/s13075-015-0627-0[2]Qian Q, Xu X, He H, Ji H, Zhang H, Ding Y, Dai SM, Zou Y, Zhu Q, Yang C, Ye S, Jiang L, Tang JP, Tong Q, He D, Zhao D, Li Y, Ma Y, Zhou J, Yuan Z, Zhang J, Jin L, Zhou X, Reveille JD, Zou H, Wang J (2017) Clinical patterns and characteristics of ankylosing spondylitis in China. Clinical rheumatology 36 (7):1561-1568. doi:10.1007/s10067-017-3660-3[3]Huang JC, Qian BP, Qiu Y, Wang B, Yu Y, Zhu ZZ, Hu J, Qu Z (2017) Quality of life and correlation with clinical and radiographic variables in patients with ankylosing spondylitis: a retrospective case series study. BMC musculoskeletal disorders 18 (1):352. doi:10.1186/s12891-017-1711-1Acknowledgments:Thanks to all the authors for their efforts and thanks to all members of the Department of Rheumatology of Affiliated Hospital of Nantong University for their helpfulness in the acquisition of data.Disclosure of Interests:None declared
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Fu T, Yang Y, Gu X, Dong C, Zhao R, Ji J, Zhang X, Gu Z. THU0044 SINGLE CELL ANALYSIS OF BONE MARROW AND PERIPHERAL ALTERED B CELL DIFFERENTIATION IN PATIENTS WITH ACTIVE SLE AND THE MECHANISM OF ABNORMAL EARLY B CELL DEVELOPMENT. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.6162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:B cell differentiation and dysfunction play a key role in the pathogenesis of Systemic lupus erythematosus (SLE). Bone marrow (BM) is the development organ of B cells, and also the home and residence place of plasma cells and memory B cells. However, there is a lack of studies on B cells in BM with lupus.Objectives:To map the development of BM and peripheral B cells and investigate the mechanism of abnormal early B cell development in SLE.Methods:A total of 11 SLE patients and 5 age- and sex-matched controls were recruited.BM and peripheral B cell subsets were measured by flow cytometry. sorting-purified B cell subsets were subject toSingle-cell RNA sequencing (scRNA-seq) and functional studies. Plasma cytokines and secreted immunoglobulins were detected by Luminex or ELISA. Disease activity of SLE patients was measured using the SLE Disease Activity Index (SLEDAI).Results:In the present study, we find out that the percentage of monocytes in MNC (p=0.070) and plasma cells(p=0.001)in CD19+ were significantly decreased in BM of SLE, compared to healthy controls. While, SLE patients had increased T%MNC(p=0.008) and B%CD19+(p=0.002) in BM that controls. In detail, the B cell subsets of bone marrow in patients with active lupus (SLEDAI≥8 score) were seriously disordered, showing the increasing T%MNC(p=0.049), propre-B%CD19+ (p=0.006)and immature B cell%CD19+ (p=0.010) than healthy donors. propre-B%CD19+ exhibited good relationship with SLEDAI. By integrating single B cell expression profiling and repertoire analysis, we map the development of B cells in BM and peripheral and pathogenic characteristics of early B cells, especially propre-B.Conclusion:These findings demonstrated that early B cells in BM, especially propre-B are abnormally differentiated with dysregulations. BM is an important organ targeted by SLE. This studyis not only to clarify the internal mechanism of the disorder of differentiation of B cells, but also to provide new clues for the targeted diagnosis and treatment of SLE.References:[1]Palanichamy, A., et al.,Neutrophil-mediated IFN activation in the bone marrow alters B cell development in human and murine systemic lupus erythematosus.J Immunol, 2014.192(3): p. 906-18.[2]Papadaki, H.A., J.C. Marsh, and G.D. Eliopoulos,Bone marrow stem cells and stromal cells in autoimmune cytopenias.Leuk Lymphoma, 2002.43(4): p. 753-60.[3]Karrar, S. and D.S. Cunninghame Graham,Abnormal B Cell Development in Systemic Lupus Erythematosus: What the Genetics Tell Us.Arthritis Rheumatol, 2018.70(4): p. 496-507.[4]Woods, M., Y.R. Zou, and A. Davidson,Defects in Germinal Center Selection in SLE.Front Immunol, 2015.6: p. 425.[5]Upregulation of p16INK4A promotes cellular senescence of bone marrow-derived mesenchymal stem cells from systemic lupus erythematosus patients.Cell Signal, 2012.24(12): p. 2307-14.Disclosure of Interests:None declared
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Wang Y, Zhao R, Dong C, Gu Z. AB1330-HPR ASSOCIATION OF INTERSTITIAL LUNG DISEASE AND QUALITY OF LIFE IN CHINESE RHEUMATOID ARTHRITIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.6249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:The health-related quality of life (HRQL) of patients with rheumatoid arthritis associated interstitial lung disease (RA-ILD) is less concerned(1). This study hypothesized that HRQL of such patients decreased.Objectives:The aim of this study was to assess the difference in HRQL between RA with and without ILD, and to predict risk factors of HRQL in Chinese RA-ILD.Methods:A cross-sectional survey of RA-ILD patients included socio-demographic characteristics, clinical variables, psychological factors and HRQL. Data were analyzed by Student’s t or chi-square test. Linear regression analysis was used to investigate the predictors of HRQL in RA-ILD.Results:The data showed that 35.17% (51/145) of RA patients had ILD. There are significant differences in age, sex, smoking history, disease duration and activity between RA with and without ILD. HRQL of RA-ILD was impaired. Physical component score (PCS) of patients with RA-ILD was also worse than that of RA without ILD (48.91±2.48 vs. 50.80±2.55). Linear regression analysis showed that DAS28 and fatigue were risk factors for PCS in patients with RA-ILD, while depression and rural residence were risk factors for mental components summary in Table 1.Table 1.Stepwise multiple linear regression analysis of PCS and MCS in RA-ILDPredictorsBSEtP95%CIPCSDAS28-0.7770.227-3.4250.001-1.236,-0.319Fatigue-0.6550.206-3.1770.003-1.071, -0.238MCSDepression2.1880.6693.2720.0020.836, 3.539Rural residents-1.6090.756-2.1280.040-3.137,-0.081Footnotes: CI=Confidence interval. PCS=Physical component score; MCS=Mental component score; DAS28=28-joint disease activity score.Conclusion:Compared with RA without ILD, HRQL of patients with RA-ILD was significantly impaired. Disease activity, fatigue, depression and rural residence were independent predictors of HRQL in Chinese RA-ILD.References:[1]Zamora-Legoff JA, Krause ML, Crowson CS, Ryu JH, Matteson EL. Patterns ofinterstitial lung disease and mortality in rheumatoid arthritis. Rheumatology (Oxford, England). 2017;56(3):344-50.Disclosure of Interests:None declared
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Zhou W, Guo J, Zhao R, Dong C, Gu Z. SAT0625-HPR FATIGUE AND CONTRIBUTING FACTORS IN CHINESE PATIENTS WITH ANKYLOSING SPONDYLITIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.6313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Ankylosing spondylitis (AS) is a systemic chronic inflammatory disease, which most likely occurs in young men. It mainly affects sacroiliac joints, axial skeleton, thoracic cage and seriously decreasing quality of life in AS patients[1,2]. In recent years, fatigue of AS patients has been paid more and more attention[3]. Fatigue is a complex feeling, diseased individuals describe fatigue as a sense of tiredness at rest, exhaustion with activity, lack of energy which affects daily work, inertia or lack of endurance, or as loss of vitality. It has been confirmed that fatigue is not only a symptom but may also be quantified by fatigue scores and can be modified by various measures depending on the underlying cause[4]. However, there has been no study about fatigue in AS patients in China.Objectives:This study aimed to evaluate the predictors of fatigue and the effects of fatigue on HR-QoL among patients with AS.Methods:A total of 150 AS patients were involved in the study. A series of questionnaires included: Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), Bath Ankylosing Spondylitis Metrology Index (BASMI), Bath Ankylosing Spondylitis Functional Index (BASFI), the 10 cm Visual Analog Scale (VAS), the Self-Rating Anxiety Scale (SAS), the Self-Rating Depression Scale (SDS), the Pittsburgh Sleep Quality Index (PSQI), the Health Assessment Questionnaire-Disability Index (HAQ-DI), the Short Form 36 Health Survey (SF-36) and the Fatigue Severity Scale(FSS). Independent samples t-test, Mann–Whitney U-test, Chi-square analysis, Pearson /Spearman correlation and binary logistic regression were used to analyze the data.Results:The results demonstrated that 48.7% individuals with AS suffered from fatigue. Compared with AS patients without fatigue, AS patients with fatigue showed higher WHR(P<0.05), increased BASDAI (P<0.01) and poorer BASFI (P<0.05). Meanwhile, AS patients with fatigue tended to have more severe pain(P<0.05), higher degree of anxiety(P=0.001), more serious functional disability(P=0.001) and worse sleep quality(P=0.001). Binary logistic regression indicated that WHR (OR=1.78,P<0.05), BASDAI (OR=1.34,P=0.01), sleep disturbance (OR=2.35,P<0.05) were independent predictors of fatigue in AS patients. Additionally, the occurrence of fatigue significantly reduced the quality of life in AS patients both physically and psychologically.Conclusion:These findings suggested that medical personnel should pay more attention to AS patients with fatigue and take effective measures to relieve fatigue.References:[1]Law L, Beckman Rehnman J, Deminger A, Klingberg E, Jacobsson LTH, Forsblad-d’Elia H (2018) Factors related to health-related quality of life in ankylosing spondylitis, overall and stratified by sex. Arthritis research & therapy 20 (1):284. doi:10.1186/s13075-018-1784-8[2]Hanson A, Brown MA (2017) Genetics and the Causes of Ankylosing Spondylitis. Rheumatic diseases clinics of North America 43 (3):401-414. doi:10.1016/j.rdc.2017.04.006[3]Ulus Y, Akyol Y, Bilgici A, Kuru O (2019) Association of work instability with fatigue and emotional status in patients with ankylosing spondylitis: comparison with healthy controls. Clinical rheumatology 38 (4):1017-1024. doi:10.1007/s10067-018-4366-x[4]Finsterer J, Mahjoub SZ (2014) Fatigue in healthy and diseased individuals. The American journal of hospice & palliative care 31 (5):562-575. doi:10.1177/1049909113494748Acknowledgments:Thanks to all the authors for their efforts and thanks to all members of the Department of Rheumatology of Affiliated Hospital of Nantong University for their helpfulness in the acquisition of data.Disclosure of Interests:None declared
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Guo J, Zhou W, He M, Gu Z, Dong C. AB1329-HPR THE CURRENT STATUS AND ASSOCIATED FACTORS OF FATIGUE IN CHINESE PATIENTS WITH GOUT. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.6338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Fatigue of chronic diseases has been paid more and more attention. but the status of fatigue in gout patients has not been reported all the world[1].Objectives:In the absence of previous studies, our study aims to investigate the fatigue status, explore the potential predictors of fatigue and the effects of fatigue on health-related quality of life (HRQoL) among Chinese gout patients.Methods:This cross-sectional study was conducted from the Affiliated Hospital of Nantong University. A series of questionnaires were applied: Fatigue Scale-14 (FS-14), the 10 cm visual analog scale (VAS), the Patient Health Questionnaire (PHQ-9), the Generalized Anxiety Disorder questionnaire (GAD-7), the Pittsburgh Sleep Quality Index (PSQI), Health Assessment Questionnaire(HAQ), the Short Form 36 health survey (SF-36). Laboratory examinations were taken to obtain some biochemical indicators. Independent samples t-test, Mann–Whitney U-test, Chi-square analysis, Pearson /Spearman correlation, Stepwise linear regression and binary logistic regression were used to analyze the data.Results:411 gout patients were included in this study. Among them, more than 50% patients reported physical fatigue in FS-14, severe disease, poor psychological status and reduced HRQoL were associated with fatigue. Multiple stepwise linear regression and binary logistic regression were applied and showed that pain, sleep quality, anxiety, depression and functional disorder were the potential predictors of fatigue. In addition, we found that the more severe the fatigue, the lower the patient’s HRQoL.Conclusion:Fatigue among gout patients is exceedingly common. The results of this study suggested that rheumatologists should pay closely attention to gout patients who suffer from serious fatigue, especially those with pain, poorer sleep quality, anxiety, depression and functional disorder.References:[1]Henry, A., Tourbah, A., Camus, G., Deschamps, R., Mailhan, L., Castex, C., Gout, O. & Montreuil, M. (2019) Anxiety and depression in patients with multiple sclerosis: The mediating effects of perceived social support, Multiple sclerosis and related disorders. 27, 46-51.Disclosure of Interests:None declared
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He M, Bao Y, Yang Y, Liu S, Dong C, Zhou W, Guo J, Liu J, Chen Y, Gu Z. AB1328-HPR INCREASED BODY MASS INDEX AFFECTS SPINAL MOBILITY RATHER THAN DISEASE ACTIVITY IN ANKYLOSING SPONDYLITIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.6213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Studies have reported the association between overweight or obesity and ankylosing spondylitis (AS), but their relation is still unclear in China.Objectives:To explore the prevalence of overweight or obesity and its effect on other indicators and their relationships in Chinese AS patients.Methods:Demographic and clinical variables were collected from 207 AS patients. Patients were categorized to normal BMI group (BMI < 23kg/m2) and overweight group (BMI ≥ 23kg/m2). We used Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), Bath Ankylosing Spondylitis Functional Index (BASFI), Bath Ankylosing Spondylitis Metrology Index (BASMI), Health Assessment Questionnaire (HAQ), Ankylosing Spondylitis Quality of Life (ASQoL) and Medical Outcomes Study Short Form 36 (SF-36) to evaluate disease activity, physical function, spinal mobility, functional limitation and health-related quality of life, respectively. Statistical analysis used independent t test, Mann-Whitney U test, Chi-square test and Spearman’s rank correlation test.Results:56.5% (117) AS patients were overweight or obese, among which 80.3% (94) were male. In the overweight group, patients were older, more being married, and have higher BMI, higher waist circumference, higher waist-to-hip ratio, longer disease duration, higher BASMI score, higher white blood cell count (WBC), higher lymphocyte and higher platelet count compared to the non-overweight group (P≤ 0.038). However, there was no distinct difference in BASDAI score between the two groups (P= 0.891). In the correlation analyses, gender and marital status (P≤ 0.036) were correlated negatively with BMI; while age, waist circumference, waist-to-hip ratio, WBC, lymphocyte count and red blood cell (P≤ 0.036) were correlated positively with BMI.Conclusion:Overweight or obesity is common in Chinese AS patients. Increased BMI affects not disease activity but spinal mobility, which indicates that patients with high BMI are more likely to have limitations in flexion, extension, lateral bending and torsion of spine.References:[1]Bowness P. Hla-B27. Annu Rev Immunol. 2015;33:29-48.[2]de Araújo TA, Mota MC, Crispim CA. Obesity and sleepiness in women with fibromyalgia. Rheumatology International. 2014;35(2):281-7.Acknowledgments:This study was funded by Science and technology Project of Nantong City (Grant/Award Number: MSZ18217), Postgraduate Research & Practice Innovation Program of Jiangsu Province (Grant/Award number: KYCX19_2071 and KYCX18_2410), National Natural Science Foundation of China (Grant/Award number: 81671616 and 81871278), Science and technology Project of Jiangsu Province (Grant/Award number: BE2018671) and Clinical Research Center of Stem Cells, Affiliated Hospital of Nantong University, Nantong (Grant/Award number: HS2018001).Disclosure of Interests:None declared
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Zhang Z, Ji J, Dong C, Gu Z. THU0075 MIR-21 IN EXOSOMES DRIVED FROM DENTAL PULP STEM CELLS AMELIORATE THE TREGS/TH17 IMMUNE RESPONSE VIA TARGETING STAT3 IN COLLAGEN-INDUCED ARTHRITIS MICE. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.6003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Rheumatoid arthritis (RA) is a common and systemic autoimmune disease1.It is vital for deciphering pathogenesis to define the precise CD4+Tcell subsets that are expanded or dysregulated in RA patients2.An increase in the Th17 cell subset and a decrease in Tregs resulting imbalance of Tregs/Th17 may be responsible for the occurrence and development of RA3. Dental pulp stem cells (DPSCs) appear be a new therapeutic tool for immunological diseases4,5.InRA, the mechanism of the effect of miR-21 drivedfromDPSCsexosomes (DPSCs-exo) on the balance of Tregs/Th17 is still unclear.Objectives:We explored the effect of exosomes drived from DPSCson RA and investigated the correlation between DPSCs-exo and Tregs/Th17 balance.Methods:Exosomes were isolated through differential centrifugation. Collagen-induced arthritis(CIA) mice were builded to detect histological change and Tregs/Th17 ratio.CD4+Tcells were isolated from PBMCs. Exosomes and CD4+T cells were co-cultured to study the regulation of Tregs/Th17 balance.The relationship between miR-21 and Tregs/Th17 balance was studied by flow cytometry, qRT-PCR and Western blotting etc.Results:After Dpscs-exo treatment, the clinical scores and paw swelling of CIA mice decreased.At the same time, the expression of Treg cells increased and the expression of Th17 cells decreased in the spleen,changing the ratio of Tregs/Th17.Exosomes and CD4+T cells were co-culture,showing that Treg cellsincreased and Th17 cellsdecreased. MiR-21 is highly expressed in RA patients.MiR-21 in exosomes were Knockout and overexpressed.The balance ofTregs/Th17 decreased when miR-21 were knockout and increased when miR-21were overexpressed. In addition, STAT3 in CD4+T cells were overexpressed and co-culture with DPSCs-exo,which inhibited Tregs/Th17.Conclusion:We elucidated the mechanism of the regulation of Tregs/Th17 balance by DPSCs-exo, that is, miR-21 in exosomes drived from dental pulp stem cells ameliorate the Tregs /Th17 immune response via targeting STAT3 in collagen-induced arthritis mice.References:[1]MF, B.et al.Hexokinase 2 as a novel selective metabolic target for rheumatoid arthritis.77, 1636-1643,doi:10.1136/annrheumdis-2018-213103 (2018).[2]CY, F.et al.Mixed-effects association of single cells identifies an expanded effector CD4 T cell subset in rheumatoid arthritis.10,doi:10.1126/scitranslmed.aaq0305 (2018).[3]Q, S.et al.Impaired Tip60-mediated Foxp3 acetylation attenuates regulatory T cell development in rheumatoid arthritis.100, 27-39,doi:10.1016/j.jaut.2019.02.007 (2019).[4]L, J.et al.Comparison of immunomodulatory properties of exosomes derived from bone marrow mesenchymal stem cells and dental pulp stem cells.67, 432-442,doi:10.1007/s12026-019-09088-6 (2019).[5]B, M., A, L., M, B., W, L. & cells, S. B. J. S. Concise Review: Dental Pulp Stem Cells: A Novel Cell Therapy for Retinal and Central Nervous System Repair.35, 61-67,doi:10.1002/stem.2398 (2017).Disclosure of Interests: None declared
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Zhao Y, Gu Z, Mao T, Fang W. P2.15-06 Pretreatment Neutrophil to Lymphocyte Ratio Predicts Survival in Thymic Carcinoma Patients. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hui TH, Cho WC, Fong HW, Yu M, Kwan KW, Ngan KC, Wong KH, Tan Y, Yao S, Jiang H, Gu Z, Lin Y. An electro-osmotic microfluidic system to characterize cancer cell migration under confinement. J R Soc Interface 2019; 16:20190062. [PMID: 31164075 PMCID: PMC6597772 DOI: 10.1098/rsif.2019.0062] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 05/14/2019] [Indexed: 12/13/2022] Open
Abstract
We have developed a novel electro-osmotic microfluidic system to apply precisely controlled osmolarity gradients to cancer cells in micro-channels. We observed that albeit adhesion is not required for cells to migrate in such a confined microenvironment, the migrating velocity of cells is strongly influenced by the interactions between the cells and the channel wall, with a stronger adhesion leading to diminished cell motility. Furthermore, through examining more than 20 different types of cancer cells, we found a linear positive correlation between the protein concentration of the aquaporin-4 (AQP4) and the cell migrating speed. Knockdown of AQP4 in invasive re-populated cancer stem cells reduced their migration capability down to the level that is comparable to their parental cancer cells. Interestingly, these observations can all be quantitatively explained by the osmotic engine model where the cell movement is assumed to be driven by cross-membrane ion/water transport, while adhesion acts as a frictional resistance against the cell motility. By providing versatile and controllable features in regulating and characterizing the migration capability of cells, our system may serve as a useful tool in quantifying how cell motility is influenced by different physical and biochemical factors, as well as elucidating the mechanisms behind, in the future.
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Affiliation(s)
- T. H. Hui
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - W. C. Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong SAR, People's Republic of China
| | - H. W. Fong
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong SAR, People's Republic of China
| | - M. Yu
- Department of Mechanical and Aerospace Engineering, Hong Kong University of Science and Technology, Hong Kong SAR, People's Republic of China
| | - K. W. Kwan
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - K. C. Ngan
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong SAR, People's Republic of China
| | - K. H. Wong
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong SAR, People's Republic of China
| | - Y. Tan
- Interdisciplinary Division of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, People's Republic of China
| | - S. Yao
- Department of Mechanical and Aerospace Engineering, Hong Kong University of Science and Technology, Hong Kong SAR, People's Republic of China
| | - H. Jiang
- Department of Modern Mechanics, University of Science and Technology of China, Hefei, People's Republic of China
| | - Z. Gu
- Shum Yiu Foon Shum Bik Chuen Memorial Centre for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, People's Republic of China
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Y. Lin
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong SAR, People's Republic of China
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38
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Shao F, Wang X, Yu J, Shen K, Qi C, Gu Z. Expression of miR-33 from an SREBP2 intron inhibits the expression of the fatty acid oxidation-regulatory genes CROT and HADHB in chicken liver. Br Poult Sci 2019; 60:115-124. [PMID: 30698464 DOI: 10.1080/00071668.2018.1564242] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
1. Limiting the growth of adipose tissue in chickens is a major issue in the poultry industry. In chickens, de novo synthesis of lipids occurs primarily in the liver. Thus, it is necessary to understand how fatty acid accumulation in the liver is controlled. The miR-33 is an intronic microRNA (miRNA) of the chicken sterol regulatory element binding transcription factor 2 (SREBF2), which is a master switch in activating many genes involved in the uptake and synthesis of cholesterol, triglycerides, fatty acids and phospholipids. 2. In the current study, the genes CROT and HADHB known to encode enzymes critical for fatty acid oxidation were predicted to be potential targets of miR-33 in chickens via the miRNA target prediction programs 'miRanda' and 'TargetScan'. Co-transfection and dual-luciferase reporter assays showed that the expression of luciferase reporter gene linked to the 3'-untranslated region (3'UTR) of the chicken CROT and HADHB mRNA was down-regulated by overexpression of the chicken miR-33 (P < 0.05). This down-regulation was completely abolished when the predicted miR-33 target sites in the CROT and HADHB 3'UTR were mutated. 3. Transfecting miR-33 mimics into the LMH cells led to a decrease in the mRNA expression of CROT and HADHB (P < 0.01), and this transfection had a similar effect on the proteins (P < 0.05). In contrast, the expression of CROT in primary chicken hepatocytes was up-regulated after transfection with the miR-33 inhibitor LNA-anti-miR-33 (P < 0.05). 4. Using quantitative RT-PCR, it was shown that the expression of miR-33 was increased in the chicken liver from day 0 to day 49 of age, whereas the CROT and HADHB mRNA levels decreased during the same period. 5. These findings support the conclusion that miR-33 might play an important role in lipid metabolism in the chicken liver by negatively regulating the expression of the CROT and HADHB genes, which encode enzymes critical for lipid oxidation.
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Affiliation(s)
- F Shao
- a Department of Life Science and Technology , Changshu Institute of Technology , Changshu, Jiangsu , China.,b Medical Research Centre , The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University , Changzhou, Jiangsu , China
| | - X Wang
- c Jiangsu Institute of Poultry Science , Yangzhou , Jiangsu , China
| | - J Yu
- a Department of Life Science and Technology , Changshu Institute of Technology , Changshu, Jiangsu , China
| | - K Shen
- b Medical Research Centre , The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University , Changzhou, Jiangsu , China
| | - C Qi
- b Medical Research Centre , The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University , Changzhou, Jiangsu , China
| | - Z Gu
- a Department of Life Science and Technology , Changshu Institute of Technology , Changshu, Jiangsu , China
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39
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Gu Z, Wang X, Yu J, Shao F, Zhang Y. PSIV-1 microRNA-122. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Z Gu
- School of Biology and Food Engineering, Changshu Institute of Technology,Changshu, China (People’s Republic)
| | - X Wang
- Jiangsu Institute of Poultry Science,Beijing, China (People’s Republic)
| | - J Yu
- School of Biology and Food Engineering, Changshu Institute of Technology,Suzhou, China (People’s Republic)
| | - F Shao
- The Affiliated Changzhou No.2 People’s Hospital, Nanjing Medical University,Nanjing, China (People’s Republic)
| | - Y Zhang
- School of Biology and Food Engineering, Changshu Institute of Technology,Changshu, Jiangsu, China (People’s Republic)
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40
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Gu Z, Li J, Yu J, Wang Z, Xu L, Yao W. PSIV-19 Identification of VNN1-regulated genes involved in lipid metabolism in chicken hepatocytes. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Z Gu
- School of Biology and Food Engineering, Changshu Institute of Technology,Changshu, China (People’s Republic)
| | - J Li
- College of Animal Science and Technology, Nanjing Agricultural University,Nanjing, China (People’s Republic)
| | - J Yu
- School of Biology and Food Engineering, Changshu Institute of Technology,Suzhou, China (People’s Republic)
| | - Z Wang
- College of Animal Science and Technology, Nanjing Agricultural University,Nanjing, China (People’s Republic)
| | - L Xu
- School of Biology and Food Engineering, Changshu Institute of Technology,Suzhou, China (People’s Republic)
| | - W Yao
- College of Animal Science and Technology, Nanjing Agricultural University,Nanjing, China (People’s Republic)
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41
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Cosentino S, Kasai R, Gu Z, Sessa S, Kawakami Y, Takanishi A. Knee extensor muscular activity estimation during different walking patterns: flat normal and brisk walking, stair climbing. Annu Int Conf IEEE Eng Med Biol Soc 2018; 2018:1554-1557. [PMID: 30440690 DOI: 10.1109/embc.2018.8512518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Preserving mobility, the ability to keep a correct posture and dynamic balance in order to walk properly, is fundamental to maintain autonomy in daily life. Based on the correlation between muscle groups and autonomy, previous research has suggested that maintaining muscular tone in knee extensors is critical. Continuous training of knee extensors during aging is therefore essential to maintain independence. In this work, it is hypothesized that it is possible to estimate knee extensor activity only from IMU data based on a simple lower limbs model. The accuracy of the knee extensor activity estimation algorithm has been tested using sEMG measurements as control data on three different walking patterns: normal walk, fast walk and stair climbing. Estimated knee torque area and measured muscular activity for each step were compared confirming a high estimation accuracy with a correlation efficient R=0.80. Moreover, muscular activity can be divided based on intensity in three groups of statistically significant difference confirmed by the Steel-Dwass method. Future works should test the usability of the algorithm for different walking patterns, and use the collected data and the refined algorithm to implement a smart resistive device to increase knee extensor exertion during each walking pattern to the level necessary for sufficient extensor training.
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42
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Xing B, Cui B, Gu Z, Peng H. Targeted therapies in conversion therapy in mCRC: A systematic review and meta-analysis. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy281.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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43
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Wang P, Lin L, Li H, Shi M, Gu Z, Wei P. Cover Image. Transbound Emerg Dis 2018. [DOI: 10.1111/tbed.12951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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44
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Hernandez EE, Gu Z, Imbusch C, Vogel V, Giese N, Strobel O, Hackert T, Weichert W, Sprick M, Trumpp A. PO-302 Deconvolution of the tumour microenvironment of primary human pancreatic ductal adenocarcinoma and normal pancreas reveals specific deregulated signalling nodes. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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45
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Mullens AB, Kelly J, Debattista J, Phillips TM, Gu Z, Siggins F. Exploring HIV risks, testing and prevention among sub-Saharan African community members in Australia. Int J Equity Health 2018; 17:62. [PMID: 29784050 PMCID: PMC5963033 DOI: 10.1186/s12939-018-0772-6] [Citation(s) in RCA: 17] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 05/03/2018] [Indexed: 12/20/2022] Open
Abstract
Background Significant health disparities persist regarding new and late Human Immunodeficiency Virus (HIV) diagnoses among sub-Saharan African (SSA) communities in Australia. Personal/cultural beliefs and practices influence HIV (risk, prevention, testing) within Australia and during visits to home countries. Method A community forum was conducted involving 23 male and female adult African community workers, members and leaders, and health workers; facilitated by cultural workers and an experienced clinician/researcher. The forum comprised small/large group discussions regarding HIV risk/prevention (responses transcribed verbatim; utilising thematic analysis). Results Stigma, denial, social norms, tradition and culture permeated perceptions/beliefs regarding HIV testing, prevention and transmission among African Australians, particularly regarding return travel to home countries. Conclusions International travel as a risk factor for HIV acquisition requires further examination, as does the role of the doctor in HIV testing and Pre-exposure Prophylaxis (PrEP). Further assessment of PrEP as an appropriate/feasible intervention is needed, with careful attention regarding negative community perceptions and potential impacts.
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Affiliation(s)
- Amy B Mullens
- School of Psychology and Counselling, Institute for Resilient Regions, University of Southern Queensland, Ipswich Campus, 11 Salisbury Road, Ipswich, Qld 4305, Australia.
| | - Jennifer Kelly
- School of Health and Wellbeing, University of Southern Queensland, Ipswich Campus, 11 Salisbury Road, Ipswich, Qld 4305, Australia
| | - Joseph Debattista
- Queensland Health, Metro North Public Health Unit, Bryden Street, Windsor, Qld 4030, Australia
| | - Tania M Phillips
- School of Psychology and Counselling, Institute for Resilient Regions, University of Southern Queensland, Ipswich Campus, 11 Salisbury Road, Ipswich, Qld 4305, Australia
| | - Zhihong Gu
- Ethnic Communities Council of Queensland, PO Box 5916, West End, Qld 4101, Australia
| | - Fungisai Siggins
- Kalpa purru Wirranjarlki, Anyinginyi Health Aboriginal Corporation, 1 Irvine Street, PO Box 40, Tennant Creek, NT, 0861, Australia
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46
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Wang P, Lin L, Li H, Shi M, Gu Z, Wei P. Full-length genome sequence analysis of an avian leukosis virus subgroup J (ALV-J) as contaminant in live poultry vaccine: The commercial live vaccines might be a potential route for ALV-J transmission. Transbound Emerg Dis 2018; 65:1103-1106. [PMID: 29479824 DOI: 10.1111/tbed.12841] [Citation(s) in RCA: 17] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Indexed: 11/30/2022]
Abstract
One avian leukosis virus subgroup J (ALV-J) strain was isolated from 67 commercial live poultry vaccines produced by various manufacturers during 2013-2016 in China. The complete genomes of the isolate were sequenced and it was found that the genes gag and pol of the strain were relatively conservative, while the gp85 gene of the strain GX14YYA1 had the highest similarities with a field strain GX14ZS14, which was isolated from the chickens of a farm that had once used the same vaccine as the one found to be contaminated with the GX14YYA1. This is the first report of ALV-J contaminant in live poultry vaccine in China. Our finding demonstrates that vaccination of the commercial live vaccines might be a potential new route for ALV-J transmission in chickens and highlights the need for more extensive monitoring of the commercial live vaccines in China.
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Affiliation(s)
- P Wang
- Institute for Poultry Science and Health, Guangxi University, Nanning, China
| | - L Lin
- Institute for Poultry Science and Health, Guangxi University, Nanning, China
| | - H Li
- Institute for Poultry Science and Health, Guangxi University, Nanning, China
| | - M Shi
- Institute for Poultry Science and Health, Guangxi University, Nanning, China
| | - Z Gu
- Institute for Poultry Science and Health, Guangxi University, Nanning, China
| | - P Wei
- Institute for Poultry Science and Health, Guangxi University, Nanning, China
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47
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Zhi X, Cui J, Gu Z, Cao L, Weng W, Li Q, Chen X, Su J. Erratum to "Orthopedics research output from China, USA, UK, Japan, Germany and France: A 10-year survey of the literature" [Orthop. Traumatol. Surg. Res. 102 (2016) 939-945]. Orthop Traumatol Surg Res 2017; 103:1303. [PMID: 28988730 DOI: 10.1016/j.otsr.2017.09.009] [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: 02/02/2023]
Affiliation(s)
- X Zhi
- Graduate Management Unit, Changhai hospital affiliated to the Second Military Medical University, Changhai road, 200433 Shanghai, PR China
| | - J Cui
- Graduate Management Unit, Changhai hospital affiliated to the Second Military Medical University, Changhai road, 200433 Shanghai, PR China
| | - Z Gu
- Department of Orthopedics, Changhai hospital affiliated to the Second Military Medical University, Changhai road, 200433 Shanghai, PR China
| | - L Cao
- Department of Orthopedics, Changhai hospital affiliated to the Second Military Medical University, Changhai road, 200433 Shanghai, PR China
| | - W Weng
- Department of Orthopedics, Changhai hospital affiliated to the Second Military Medical University, Changhai road, 200433 Shanghai, PR China
| | - Q Li
- Department of Orthopedics, Changhai hospital affiliated to the Second Military Medical University, Changhai road, 200433 Shanghai, PR China
| | - X Chen
- Department of Orthopedics, Changhai hospital affiliated to the Second Military Medical University, Changhai road, 200433 Shanghai, PR China
| | - J Su
- Department of Orthopedics, Changhai hospital affiliated to the Second Military Medical University, Changhai road, 200433 Shanghai, PR China.
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48
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Yang B, Qi H, Gu Z, Zhang H, Chen W, Chen H, Chen YQ. Characterization of the triple-component linoleic acid isomerase in Lactobacillus plantarum ZS2058 by genetic manipulation. J Appl Microbiol 2017; 123:1263-1273. [PMID: 28833935 DOI: 10.1111/jam.13570] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [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: 06/02/2017] [Revised: 08/09/2017] [Accepted: 08/11/2017] [Indexed: 12/21/2022]
Abstract
AIM To assess the mechanism for conjugated linoleic acid (CLA) production in Lactobacillus plantarum ZS2058. METHODS AND RESULTS CLA has attracted great interests for decades due to its health-associated benefits including anticancer, anti-atherogenic, anti-obesity and modulation of the immune system. A number of microbial CLA producers were widely reported including lactic acid bacteria. Lactobacillus plantarum ZS2058, an isolate from Chinese traditional fermented food, could convert LA to CLA with various intermediates. To characterize the genetic determinants for generating CLA, a cre-lox-based system was utilized to delete the genes encoding myosin cross-reactive antigen (MCRA), short-chain dehydrogenase/oxidoreductase (DH) and acetoacetate decarboxylase (DC) in Lact. plantarum ZS2058, respectively. Neither intermediate was detected in the corresponding gene deletion mutant. Meanwhile all those mutants could recover the ability to convert linoleic acid to CLA when the corresponding gene was completed. CONCLUSIONS The results indicated that CLA production was a multiple-step reaction catalysed by triple-component linoleate isomerase system encoded by mcra, dh and dc. SIGNIFICANCE AND IMPACT OF THE STUDY Multicomponent linoleic acid isomerase provided important results for illustration unique mechanism for CLA production in Lact. plantarum ZS2058. Lactobacilli with CLA production ability offer novel opportunities for functional food development.
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Affiliation(s)
- B Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - H Qi
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Z Gu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - H Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu, China
| | - W Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu, China.,Beijing Innovation Centre of Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing, China
| | - H Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Y Q Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu, China.,Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA
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49
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Wang Y, Ding Y, Wang S, Chen H, Zhang H, Chen W, Gu Z, Chen YQ. Extract of Syzygium aromaticum suppress eEF1A protein expression and fungal growth. J Appl Microbiol 2017; 123:80-91. [PMID: 28445616 DOI: 10.1111/jam.13478] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 01/15/2017] [Revised: 03/31/2017] [Accepted: 04/23/2017] [Indexed: 02/02/2023]
Abstract
AIMS Clove extract has therapeutic potential as an antifungal drug, yet the mechanism of action remains ambiguous. Current study aimed to address the molecular process of the antifungal activity exerted by clove extract. METHODS AND RESULTS The antifungal assay results showed that clove extract had some effects on all of the tested yeast. Propidium iodide staining assay showed cell membrane damage in Saccharomyces cerevisiae after treatment of clove extract for 30 h. Interestingly, SDS-polyacrylamide gel electrophoresis assays revealed that the protein expression of eukaryotic elongation factor 1 alpha (eEF1A) was suppressed significantly after treatment with clove extract (not pure eugenol). Transcriptional analyses revealed that the TEF1 and TEF2 genes (translation elongation factor EF-1 alpha) encoding eEF1A were not disturbed with the addition of clove extract; however, the expression of related genes EFB1 (translation elongation factor 1 subunit beta), ENO2 (phosphopyruvate hydratase ENO2), GSP1 (Ran GTPase GSP1), RPP0 (ribosomal protein P0), YEF3 (translation elongation factor EF-3), TEF4 (translation elongation factor EF1B gamma), and RPS2 (ribosomal 40S subunit protein S2) increased significantly. CONCLUSIONS These results suggest that clove extract plays a role in disrupting growth and affecting yeast metabolism. eEF1A was affected by clove extract at the protein level but not at the transcriptional level. SIGNIFICANCE AND IMPACT OF THE STUDY This study is based on a detailed study of antifungal action exerted by clove extract, and proposed that down-regulation of eEF1A protein expression may contribute to its antifungal activity. These results may have clinical significance for future application of clove extract as a natural antifungal agent.
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Affiliation(s)
- Y Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
| | - Y Ding
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
| | - S Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
| | - H Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
| | - H Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
| | - W Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,Beijing Innovation Centre of Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing, P. R. China
| | - Z Gu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
| | - Y Q Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA
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50
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Driver G, Debattista J, Gu Z, Lemoire J, Hooper J. HIV testing within the African community using home-based self collection of oral samples. Aust N Z J Public Health 2017; 41:446. [PMID: 28245516 DOI: 10.1111/1753-6405.12653] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Affiliation(s)
| | | | - Zhihong Gu
- Ethnic Communities Council of Queensland
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