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Rajamohan M, Jayhoon Z, Gomez B, Tankel F, Clarke N, Foskett S, Baumann A, Quilty S, Kozor R, Wong C. Heart Failure in Indigenous and Non-Indigenous Central Australians. Heart Lung Circ 2022. [DOI: 10.1016/j.hlc.2022.06.477] [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: 10/16/2022]
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2
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Shamsie I, Gomez B, Khalid S, Boni A, Ramdin C, Nelson L. 37 The Impact of the Coronavirus (COVID-19) Pandemic on Access to Care and Basic Necessities of Emergency Department Patients With Opioid Use Disorders Who Are Linked to Treatment. Ann Emerg Med 2021. [PMCID: PMC8536263 DOI: 10.1016/j.annemergmed.2021.09.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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3
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Katibah G, Ohol Y, Bucher C, Adusumilli L, Kaveri D, Robles O, Sun M, Cho C, Milestone H, Ames R, Jacobson S, Nebalasca D, Gomez- Guagua J, Sanchez J, Grandcolas M, Wong S, Brovarney M, Ramana C, Zaw T, Nguyen L, Tivitmahaisoon P, Ng A, Ma A, Gomez B, Ko M, Leger P, Jackson J, Shibuya G, Shakhmin A, Bradford D, Xu M, Zibinsky M, Poon D, Wustrow D, Kassner P, Brockstedt D. Abstract 1646: Development of small-molecule HPK1 inhibitors to unleash tumor-specific T cell responses. Cancer Res 2021. [DOI: 10.1158/1538-7445.am2021-1646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Hematopoietic progenitor kinase 1 (HPK1) is an intracellular protein kinase that negatively regulates T cell signaling and proliferation. Upon T cell receptor (TCR) activation, active HPK1 phosphorylates the adaptor protein SLP76 in the TCR complex, recruiting the negative regulator 14-3-3 and targeting components of the TCR signaling complex for degradation. HPK1 thus limits the TCR signaling important for mounting an effective immune response against tumor cells. We are employing structure-guided drug design to develop potent small-molecule inhibitors of HPK1. Our compounds potently inhibit HPK1 in biochemical assays, reduce levels of phosphorylated SLP76 and concomitantly increase IL-2 production by Jurkat T cells. Importantly, our HPK1 inhibitors enhance cytokine production by human and mouse primary T cells above that observed with TCR activation alone. Treatment of mice with orally available HPK1 inhibitors results in increased activation of antigen-specific CD8+ T cells in vivo and decreased tumor growth as single agent and in combination with clinically relevant checkpoint inhibitor antibodies. Our work confirms the importance of HPK1 for T cell function and supports HPK1 as a promising next generation immuno-oncology target.
Citation Format: George Katibah, Yamini Ohol, Cyril Bucher, Lavanya Adusumilli, Deepika Kaveri, Omar Robles, Michael Sun, Cynthia Cho, Heather Milestone, Rachel Ames, Scott Jacobson, Dan Nebalasca, Justy Gomez- Guagua, Jerick Sanchez, Molly Grandcolas, Steve Wong, Martin Brovarney, Chandru Ramana, Thant Zaw, Lan Nguyen, Parcharee Tivitmahaisoon, Andrew Ng, Anqi Ma, Blanca Gomez, Michelle Ko, Paul Leger, Jeffrey Jackson, Grant Shibuya, Anton Shakhmin, Delia Bradford, Mengshu Xu, Mikhail Zibinsky, Daniel Poon, David Wustrow, Paul Kassner, Dirk Brockstedt. Development of small-molecule HPK1 inhibitors to unleash tumor-specific T cell responses [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2021; 2021 Apr 10-15 and May 17-21. Philadelphia (PA): AACR; Cancer Res 2021;81(13_Suppl):Abstract nr 1646.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Steve Wong
- RAPT Therapeutics, South San Francisco, CA
| | | | | | - Thant Zaw
- RAPT Therapeutics, South San Francisco, CA
| | - Lan Nguyen
- RAPT Therapeutics, South San Francisco, CA
| | | | - Andrew Ng
- RAPT Therapeutics, South San Francisco, CA
| | - Anqi Ma
- RAPT Therapeutics, South San Francisco, CA
| | | | | | - Paul Leger
- RAPT Therapeutics, South San Francisco, CA
| | | | | | | | | | - Mengshu Xu
- RAPT Therapeutics, South San Francisco, CA
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4
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del Carpio L, Gomila P, Camacho S, Moron S, Riudavets M, Molto C, Bujosa A, Borrell M, Teres R, Martin B, Gallardo P, Acosta E, Tilea L, Soto A, De Quintana C, Craven-Bartle J, Gallardo A, Gomez B, Bonilla S, Gallego O. Impaired survival in resected glioblastoma multiforme patients treated with early chemoradiation. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy273.376] [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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5
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Maaroufi A, Vince A, Himatt SM, Mohamed R, Fung J, Opare-Sem O, Workneh A, Njouom R, Al Ghazzawi I, Abdulla M, Kaliaskarova KS, Owusu-Ofori S, Abdelmageed MK, Adda D, Akin O, Al Baqali A, Al Dweik N, Al Ejji K, Al Kaabi S, Al Naamani K, Al Qamish J, Al Sadadi M, Al Salman J, AlBadri M, Al-Busafi SA, Al-Romaihi HE, Ampofo W, Antonov K, Anyaike C, Arome F, Bane A, Blach S, Borodo MM, Brandon SM, Bright B, Butt MT, Cardenas I, Chan HLY, Chen CJ, Chen DS, Chen PJ, Chien RN, Chuang WL, Cuellar D, Derbala M, Elbardiny AA, Estes C, Farag E, Gamkrelidze I, Garcia V, Genov J, Ghandour Z, Ghuloom M, Gomez B, Gunter J, Habeeb J, Hajelssedig O, Hamoudi W, Hrstic I, Hu CC, Huang CF, Hui YT, Jahis R, Jelev D, John AK, Kamel Y, Kao JH, Khamis J, Khattabi H, Khoudri I, Konysbekova A, Kotzev I, Lai MS, Lao WC, Layden J, Lee MH, Lesi O, Li M, Lo A, Loo CK, Lukšić B, Malu AO, Mateva L, Mitova R, Morović M, Murphy K, Mustapha B, Nde H, Nersesov A, Ngige E, Njoya O, Nonković D, Obekpa S, Oguche S, Okolo EE, Omede O, Omuemu C, Ondoa P, Phillips RO, Prokopenko YN, Razavi H, Razavi-Shearer D, Redae B, Reic T, Rinke de Wit T, Rios C, Robbins S, Roberts LR, Sanad SJ, Schmelzer JD, Sharma M, Simonova M, Su TH, Sultan K, Tan SS, Tchernev K, Tsang OTY, Tsang S, Tzeuton C, Ugoeze S, Uzochukwu B, Vi R, Wani HU, Wong VWS, Yacoub R, Yesmembetov KI, Youbi M, Yuen MF, Razavi-Shearer K. Historical epidemiology of hepatitis C virus in select countries-volume 4. J Viral Hepat 2017; 24 Suppl 2:8-24. [PMID: 29105285 DOI: 10.1111/jvh.12762] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 07/03/2017] [Indexed: 12/11/2022]
Abstract
Due to the introduction of newer, more efficacious treatment options, there is a pressing need for policy makers and public health officials to develop or adapt national hepatitis C virus (HCV) control strategies to the changing epidemiological landscape. To do so, detailed, country-specific data are needed to characterize the burden of chronic HCV infection. In this study of 17 countries, a literature review of published and unpublished data on HCV prevalence, viraemia, genotype, age and gender distribution, liver transplants and diagnosis and treatment rates was conducted, and inputs were validated by expert consensus in each country. Viraemic prevalence in this study ranged from 0.2% in Hong Kong to 2.4% in Taiwan, while the largest viraemic populations were in Nigeria (2 597 000 cases) and Taiwan (569 000 cases). Diagnosis, treatment and liver transplant rates varied widely across the countries included in this analysis, as did the availability of reliable data. Addressing data gaps will be critical for the development of future strategies to manage and minimize the disease burden of hepatitis C.
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Affiliation(s)
- A Maaroufi
- National Institute of Health Administration, Rabat, Morocco
| | - A Vince
- Medical School University of Zagreb, University Hospital of Infectious Diseases Zagreb, Zagreb, Croatia
| | - S M Himatt
- Ministry of Public Health Qatar, Doha, Qatar
| | - R Mohamed
- University of Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - J Fung
- Department of Medicine, The University of Hong Kong, Hong Kong, SAR, China
| | - O Opare-Sem
- Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - A Workneh
- Non-Communicable Diseases Programme, World Health Organization, Addis Ababa, Ethiopia.,Federal Ministry of Health, Addis Ababa, Ethiopia
| | - R Njouom
- Virology Department, Centre Pasteur of Cameroon, Yaounde, Cameroon
| | - I Al Ghazzawi
- GI and Hepatology Department, Jordan Royal Medical Services, Amman, Jordan
| | - M Abdulla
- Salmaniya Medical Complex, Manama, Bahrain
| | - K S Kaliaskarova
- Ministry of Healthcare and Social Development of the Republic of Kazakhstan, Astana, Kazakhstan.,Republican Coordination Center for Hepatology and Gastroenterology, Astana, Kazakhstan
| | | | | | - D Adda
- Civil Society Network on Hepatitis, Abuja, Nigeria.,Chagro-Care Trust (CCT), Jalingo, Nigeria
| | - O Akin
- Federal Ministry of Health, Abuja, Nigeria
| | - A Al Baqali
- Al Kindi Specialised Hospital, Manama, Bahrain
| | - N Al Dweik
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K Al Ejji
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - S Al Kaabi
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K Al Naamani
- Division of Gastroenterology and Hepatology, Department of Medicine, Armed Forces Hospital, Muscat, Oman
| | - J Al Qamish
- Gastroenterolgy Clinic, IBN Al-Nafees Hospital, Manama, Bahrain
| | | | | | - M AlBadri
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - S A Al-Busafi
- Division of Gastroenterology, Department of Medicine, Sultan Qaboos University Hospital, Muscat, Oman
| | | | - W Ampofo
- Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Ghana
| | - K Antonov
- University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - C Anyaike
- Federal Ministry of Health, Abuja, Nigeria
| | - F Arome
- Advocacy for the Prevention of Hepatitis in Nigeria, Jos, Nigeria
| | - A Bane
- Gastroenterology and Hepatology, Addis Ababa University Medical School, Addis Ababa, Ethiopia.,Ethiopian Gastroenterological Association, Addis Ababa, Ethiopia
| | - S Blach
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - M M Borodo
- Aminu Kano Teaching Hospital, Kano, Nigeria.,Bayero University, Kano, Nigeria
| | - S M Brandon
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - B Bright
- LiveWell Initiative (LWI), Lagos, Nigeria
| | - M T Butt
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - I Cardenas
- Communicable Diseases Division, Ministry of Health and Social Protection, Bogota, Colombia
| | - H L Y Chan
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, SAR, China.,Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | | | - D S Chen
- Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan
| | - P J Chen
- National Taiwan University, Taipei, Taiwan
| | - R N Chien
- Liver Research Unit, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - W L Chuang
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan
| | - D Cuellar
- Department of Epidemiology and Demography, Ministry of Health and Social Protection, Bogota, Colombia
| | - M Derbala
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | | | - C Estes
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - E Farag
- Ministry of Public Health Qatar, Doha, Qatar
| | - I Gamkrelidze
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - V Garcia
- Ministry of Public Health, Santo Domingo, Dominican Republic
| | - J Genov
- University Hospital "Queen Joanna", Sofia, Bulgaria
| | - Z Ghandour
- BDF Hospital, Royal Medical Services, Riffa, Bahrain
| | - M Ghuloom
- Salmaniya Medical Complex, Manama, Bahrain
| | - B Gomez
- Pan American Health Organization, Washington, DC, USA
| | - J Gunter
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - J Habeeb
- Salmaniya Medical Complex, Manama, Bahrain
| | - O Hajelssedig
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - W Hamoudi
- Department of Gastroenterology & Hepatology, Al Bashir Hospital, Amman, Jordan.,Jordan Ministry of Health, Amman, Jordan
| | - I Hrstic
- General Hospital Pula, Pula, Croatia
| | - C C Hu
- Liver Research Unit, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - C F Huang
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan
| | - Y T Hui
- Department of Medicine, Queen Elizabeth Hospital, Hong Kong, SAR, China
| | - R Jahis
- Disease Control Division, Ministry of Health, Putrajaya, Malaysia
| | - D Jelev
- University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - A K John
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - Y Kamel
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar.,Department of Medicine, Miniya University, Minya, Egypt
| | - J H Kao
- Department of Internal Medicine, National Taiwan University Hospital, Taipei City, Taiwan
| | - J Khamis
- Salmaniya Medical Complex, Manama, Bahrain
| | - H Khattabi
- Eastern Mediterranean Regional Office, World Health Organization, Cairo, Egypt
| | - I Khoudri
- National Institute of Health Administration, Rabat, Morocco
| | - A Konysbekova
- Republican Diagnostic Center, Astana, Kazakhstan.,University Medical Center, Astana, Kazakhstan
| | - I Kotzev
- University Hospital "St. Marina", Varna, Bulgaria
| | - M S Lai
- Department of Medicine, North District Hospital, Hong Kong, SAR, China
| | - W C Lao
- Department of Medicine, Pamela Youde Nethersole Eastern Hospital, Hong Kong, SAR, China
| | - J Layden
- Department of Public Health Sciences, Loyola University Chicago, Chicago, IL, USA
| | - M H Lee
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - O Lesi
- University of Lagos, Lagos, Nigeria.,Lagos University Teaching Hospital, Lagos, Nigeria
| | - M Li
- Division of Gastroenterology and Hepatology, Department of Medicine and Geriatrics, Tuen Mun Hospital, Hong Kong, SAR, China
| | - A Lo
- Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - C K Loo
- Department of Medicine and Geriatrics, Kwong Wah Hospital, Hong Kong, SAR, China
| | - B Lukšić
- Clinical Department of Infectious Diseases, Split University Hospital and Split University Medical School, Split, Croatia
| | - A O Malu
- Benue State University Teaching Hospital, Makurdi, Nigeria
| | - L Mateva
- University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - R Mitova
- University Hospital "Queen Joanna", Sofia, Bulgaria
| | - M Morović
- Department of Infectious Diseases, Zadar General Hospital, Zadar, Croatia
| | - K Murphy
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | | | - H Nde
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - A Nersesov
- National Research Institute of Cardiology and Internal Diseases, Almaty, Kazakhstan
| | - E Ngige
- Federal Ministry of Health, Abuja, Nigeria
| | - O Njoya
- Research Laboratory on Viral Hepatitis & Health Communication, Faculty of Medicine, University of Yaoundé, Yaoundé, Cameroon
| | - D Nonković
- Department of Epidemiology, Institute of Public Health, County of Dalmatia, Split, Croatia
| | - S Obekpa
- Advocacy for the Prevention of Hepatitis in Nigeria, Jos, Nigeria.,Benue State University Teaching Hospital, Makurdi, Nigeria
| | - S Oguche
- Department of Pediatrics, University of Jos, Jos, Nigeria.,Department of Medicine, University of Jos, Jos, Nigeria.,Jos University Teaching Hospital, Jos, Nigeria
| | - E E Okolo
- Beacon Youth Initiative, Lafia, Nigeria
| | - O Omede
- Federal Ministry of Health, Abuja, Nigeria
| | - C Omuemu
- University of Benin, Benin City, Nigeria
| | - P Ondoa
- Amsterdam Institute for Global Health and Development, Amsterdam, Netherlands.,African Society of Laboratory Medicine, Addis Ababa, Ethiopia
| | - R O Phillips
- Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Y N Prokopenko
- Republican Coordination Center for Hepatology and Gastroenterology, Astana, Kazakhstan
| | - H Razavi
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | | | - B Redae
- Ethiopian Gastroenterological Association, Addis Ababa, Ethiopia.,St. Paul's Hospital Millennium College, Addis Ababa, Ethiopia
| | - T Reic
- European Liver Patients Association, Sint-Truiden, Belgium
| | - T Rinke de Wit
- PharmAccess Foundation, Department of Global Health, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - C Rios
- Department of Health Promotion and Disease Prevention, Ministry of Health and Social Protection, Bogota, Colombia
| | - S Robbins
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - L R Roberts
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - S J Sanad
- BDF Hospital, Royal Medical Services, Riffa, Bahrain
| | - J D Schmelzer
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - M Sharma
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - M Simonova
- Clinic of Gastroenterology, Military Medical Academy, Sofia, Bulgaria
| | - T H Su
- Department of Internal Medicine, National Taiwan University Hospital, Taipei City, Taiwan
| | - K Sultan
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - S S Tan
- Department of Hepatology, Selayang Hospital, Selangor, Malaysia
| | | | - O T Y Tsang
- Department of Medicine and Geriatrics, Princess Margaret Hospital Authority, Hong Kong, SAR, China
| | - S Tsang
- Department of Medicine, Tseung Kwan O Hospital, Hong Kong, SAR, China
| | - C Tzeuton
- Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
| | - S Ugoeze
- Federal Medical Centre, Jalingo, Nigeria
| | - B Uzochukwu
- Institute of Public Health, University of Nigeria, Nsukka, Nigeria
| | - R Vi
- Republican Coordination Center for Hepatology and Gastroenterology, Astana, Kazakhstan.,International HepatoTransplant Group, Astana, Kazakhstan
| | - H U Wani
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - V W S Wong
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, SAR, China.,State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - R Yacoub
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K I Yesmembetov
- National Scientific Center of Oncology and Transplantology, Astana, Kazakhstan
| | - M Youbi
- National Institute of Health Administration, Rabat, Morocco
| | - M F Yuen
- Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, SAR, China
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6
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Chan HLY, Chen CJ, Omede O, Al Qamish J, Al Naamani K, Bane A, Tan SS, Simonova M, Cardenas I, Derbala M, Akin O, Phillips RO, Abdelmageed MK, Abdulla M, Adda D, Al Baqali A, Al Dweik N, Al Ejji K, Al Ghazzawi I, Al Kaabi S, Al Sadadi M, Al Salman J, AlBadri M, Al-Busafi SA, Al-Romaihi HE, Ampofo W, Antonov K, Anyaike C, Arome F, Blach S, Borodo MM, Brandon SM, Bright B, Butt MT, Chen DS, Chen PJ, Chien RN, Chuang WL, Cuellar D, Elbardiny AA, Estes C, Farag E, Fung J, Gamkrelidze I, Garcia V, Genov J, Ghandour Z, Ghuloom M, Gomez B, Gunter J, Habeeb J, Hajelssedig O, Hamoudi W, Himatt SM, Hrstic I, Hu CC, Huang CF, Hui YT, Jahis R, Jelev D, John AK, Kaliaskarova KS, Kamel Y, Kao JH, Khamis J, Khattabi H, Khoudri I, Konysbekova A, Kotzev I, Lai MS, Lao WC, Layden J, Lee MH, Lesi O, Li M, Lo A, Loo CK, Lukšić B, Maaroufi A, Malu AO, Mateva L, Mitova R, Mohamed R, Morović M, Murphy K, Mustapha B, Nersesov A, Ngige E, Njouom R, Njoya O, Nonković D, Obekpa S, Oguche S, Okolo EE, Omuemu C, Ondoa P, Opare-Sem O, Owusu-Ofori S, Prokopenko YN, Razavi H, Razavi-Shearer D, Razavi-Shearer K, Redae B, Reic T, Rinke de Wit T, Rios C, Robbins S, Roberts LR, Sanad SJ, Schmelzer JD, Sharma M, Su TH, Sultan K, Tchernev K, Tsang OTY, Tsang S, Tzeuton C, Ugoeze S, Uzochukwu B, Vi R, Vince A, Wani HU, Wong VWS, Workneh A, Yacoub R, Yesmembetov KI, Youbi M, Yuen MF, Nde H. The present and future disease burden of hepatitis C virus infections with today's treatment paradigm: Volume 4. J Viral Hepat 2017; 24 Suppl 2:25-43. [PMID: 29105283 DOI: 10.1111/jvh.12760] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 07/03/2017] [Indexed: 12/13/2022]
Abstract
Factors influencing the morbidity and mortality associated with viremic hepatitis C virus (HCV) infection change over time and place, making it difficult to compare reported estimates. Models were developed for 17 countries (Bahrain, Bulgaria, Cameroon, Colombia, Croatia, Dominican Republic, Ethiopia, Ghana, Hong Kong, Jordan, Kazakhstan, Malaysia, Morocco, Nigeria, Qatar and Taiwan) to quantify and characterize the viremic population as well as forecast the changes in the infected population and the corresponding disease burden from 2015 to 2030. Model inputs were agreed upon through expert consensus, and a standardized methodology was followed to allow for comparison across countries. The viremic prevalence is expected to remain constant or decline in all but four countries (Ethiopia, Ghana, Jordan and Oman); however, HCV-related morbidity and mortality will increase in all countries except Qatar and Taiwan. In Qatar, the high-treatment rate will contribute to a reduction in total cases and HCV-related morbidity by 2030. In the remaining countries, however, the current treatment paradigm will be insufficient to achieve large reductions in HCV-related morbidity and mortality.
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Affiliation(s)
- H L Y Chan
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, SAR, China.,Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | | | - O Omede
- Federal Ministry of Health, Abuja, Nigeria
| | - J Al Qamish
- Gastroenterolgy Clinic, IBN Al-Nafees Hospital, Manama, Bahsrain
| | - K Al Naamani
- Division of Gastroenterology and Hepatology, Department of Medicine, Armed Forces Hospital, Muscat, Oman
| | - A Bane
- Gastroenterology and Hepatology, Addis Ababa University Medical School, Addis Ababa, Ethiopia.,Ethiopian Gastroenterological Association, Addis Ababa, Ethiopia
| | - S S Tan
- Department of Hepatology, Selayang Hospital, Selangor, Malaysia
| | - M Simonova
- Clinic of Gastroenterology, Military Medical Academy, Sofia, Bulgaria
| | - I Cardenas
- Communicable Diseases Division, Ministry of Health and Social Protection, Bogota, Colombia
| | - M Derbala
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - O Akin
- Federal Ministry of Health, Abuja, Nigeria
| | - R O Phillips
- Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | | | - M Abdulla
- Salmaniya Medical Complex, Manama, Bahrain
| | - D Adda
- Civil Society Network on Hepatitis, Abuja, Nigeria.,Chagro-Care Trust (CCT), Jalingo, Nigeria
| | - A Al Baqali
- Al Kindi Specialised Hospital, Manama, Bahrain
| | - N Al Dweik
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K Al Ejji
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - I Al Ghazzawi
- GI and Hepatology Department, Jordan Royal Medical Services, Amman, Jordan
| | - S Al Kaabi
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | | | | | - M AlBadri
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - S A Al-Busafi
- Division of Gastroenterology, Department of Medicine, Sultan Qaboos University Hospital, Muscat, Oman
| | | | - W Ampofo
- Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Ghana
| | - K Antonov
- University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - C Anyaike
- Federal Ministry of Health, Abuja, Nigeria
| | - F Arome
- Advocacy for the Prevention of Hepatitis in Nigeria, Jos, Nigeria
| | - S Blach
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - M M Borodo
- Aminu Kano Teaching Hospital, Kano, Nigeria.,Bayero University, Kano, Nigeria
| | - S M Brandon
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - B Bright
- LiveWell Initiative (LWI), Lagos, Nigeria
| | - M T Butt
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - D S Chen
- Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan
| | - P J Chen
- National Taiwan University, Taipei, Taiwan
| | - R N Chien
- Liver Research Unit, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - W L Chuang
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan
| | - D Cuellar
- Department of Epidemiology and Demography, Ministry of Health and Social Protection, Bogota, Colombia
| | | | - C Estes
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - E Farag
- Ministry of Public Health Qatar, Doha, Qatar
| | - J Fung
- Department of Medicine, The University of Hong Kong, Hong Kong, SAR, China
| | - I Gamkrelidze
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - V Garcia
- Ministry of Public Health, Santo Domingo, Dominican Republic
| | - J Genov
- University Hospital "Queen Joanna", Sofia, Bulgaria
| | - Z Ghandour
- BDF Hospital, Royal Medical Services, Riffa, Bahrain
| | - M Ghuloom
- Salmaniya Medical Complex, Manama, Bahrain
| | - B Gomez
- Pan American Health Organization, Washington, DC, USA
| | - J Gunter
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - J Habeeb
- Salmaniya Medical Complex, Manama, Bahrain
| | - O Hajelssedig
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - W Hamoudi
- Department of Gastroenterology & Hepatology, Al Bashir Hospital, Amman, Jordan.,Jordan Ministry of Health, Amman, Jordan
| | - S M Himatt
- Ministry of Public Health Qatar, Doha, Qatar
| | - I Hrstic
- General Hospital Pula, Pula, Croatia
| | - C C Hu
- Liver Research Unit, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - C F Huang
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan
| | - Y T Hui
- Department of Medicine, Queen Elizabeth Hospital, Hong Kong, SAR, China
| | - R Jahis
- Disease Control Division, Ministry of Health, Putrajaya, Malaysia
| | - D Jelev
- University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - A K John
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K S Kaliaskarova
- Ministry of Healthcare and Social Development of the Republic of Kazakhstan, Astana, Kazakhstan.,Republican Coordination Center for Hepatology and Gastroenterology, Astana, Kazakhstan
| | - Y Kamel
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar.,Department of Medicine, Miniya University, Minya, Egypt
| | - J H Kao
- Department of Internal Medicine, National Taiwan University Hospital, Taipei City, Taiwan
| | - J Khamis
- Salmaniya Medical Complex, Manama, Bahrain
| | - H Khattabi
- Eastern Mediterranean Regional Office, World Health Organization, Cairo, Egypt
| | - I Khoudri
- Department of Epidemiology and Disease Control, Ministry of Health, Rabat, Morocco
| | - A Konysbekova
- Republican Diagnostic Center, Astana, Kazakhstan.,University Medical Center, Astana, Kazakhstan
| | - I Kotzev
- University Hospital "St. Marina", Varna, Bulgaria
| | - M S Lai
- Department of Medicine, North District Hospital, Hong Kong, SAR, China
| | - W C Lao
- Department of Medicine, Pamela Youde Nethersole Eastern Hospital, Hong Kong, SAR, China
| | - J Layden
- Department of Public Health Sciences, Loyola University Chicago, Chicago, IL, USA
| | - M H Lee
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - O Lesi
- University of Lagos, Lagos, Nigeria.,Lagos University Teaching Hospital, Lagos, Nigeria
| | - M Li
- Division of Gastroenterology and Hepatology, Department of Medicine and Geriatrics, Tuen Mun Hospital, Hong Kong, SAR, China
| | - A Lo
- Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - C K Loo
- Department of Medicine and Geriatrics, Kwong Wah Hospital, Hong Kong, SAR, China
| | - B Lukšić
- Clinical Department of Infectious Diseases, Split University Hospital and Split University Medical School, Split, Croatia
| | - A Maaroufi
- Department of Epidemiology and Disease Control, Ministry of Health, Rabat, Morocco
| | - A O Malu
- Benue State University Teaching Hospital, Makurdi, Nigeria
| | - L Mateva
- University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - R Mitova
- University Hospital "Queen Joanna", Sofia, Bulgaria
| | - R Mohamed
- University of Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - M Morović
- Department of Infectious Diseases, Zadar General Hospital, Zadar, Croatia
| | - K Murphy
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | | | - A Nersesov
- National Research Institute of Cardiology and Internal Diseases, Almaty, Kazakhstan
| | - E Ngige
- Federal Ministry of Health, Abuja, Nigeria
| | - R Njouom
- Virology Department, Centre Pasteur of Cameroon, Yaounde, Cameroon
| | - O Njoya
- Research Laboratory on Viral Hepatitis & Health Communication, Faculty of Medicine, University of Yaoundé, Yaoundé, Cameroon
| | - D Nonković
- Department of Epidemiology, Institute of Public Health, County of Dalmatia, Split, Croatia
| | - S Obekpa
- Advocacy for the Prevention of Hepatitis in Nigeria, Jos, Nigeria.,Benue State University Teaching Hospital, Makurdi, Nigeria
| | - S Oguche
- Department of Pediatrics, University of Jos, Jos, Nigeria.,Department of Medicine, University of Jos, Jos, Nigeria.,Jos University Teaching Hospital, Jos, Nigeria
| | - E E Okolo
- Beacon Youth Initiative, Lafia, Nigeria
| | - C Omuemu
- University of Benin, Benin City, Nigeria
| | - P Ondoa
- Amsterdam Institute for Global Health and Development, Amsterdam, The Netherlands.,African Society of Laboratory Medicine, Addis Ababa, Ethiopia
| | - O Opare-Sem
- Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | | | - Y N Prokopenko
- Republican Coordination Center for Hepatology and Gastroenterology, Astana, Kazakhstan
| | - H Razavi
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | | | | | - B Redae
- Ethiopian Gastroenterological Association, Addis Ababa, Ethiopia.,St. Paul's Hospital Millennium College, Addis Ababa, Ethiopia
| | - T Reic
- European Liver Patients Association, Sint-Truiden, Belgium
| | - T Rinke de Wit
- PharmAccess Foundation, Department of Global Health, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - C Rios
- Department of Health Promotion and Disease Prevention, Ministry of Health and Social Protection, Bogota, Colombia
| | - S Robbins
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - L R Roberts
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - S J Sanad
- BDF Hospital, Royal Medical Services, Riffa, Bahrain
| | - J D Schmelzer
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - M Sharma
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - T H Su
- Department of Internal Medicine, National Taiwan University Hospital, Taipei City, Taiwan
| | - K Sultan
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | | | - O T Y Tsang
- Department of Medicine and Geriatrics, Princess Margaret Hospital Authority, Hong Kong, SAR, China
| | - S Tsang
- Department of Medicine, Tseung Kwan O Hospital, Hong Kong, SAR, China
| | - C Tzeuton
- Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
| | - S Ugoeze
- Federal Medical Centre, Jalingo, Nigeria
| | - B Uzochukwu
- Institute of Public Health, University of Nigeria, Nsukka, Nigeria
| | - R Vi
- Republican Coordination Center for Hepatology and Gastroenterology, Astana, Kazakhstan.,International HepatoTransplant Group, Astana, Kazakhstan
| | - A Vince
- Medical School University of Zagreb, University Hospital of Infectious Diseases Zagreb, Zagreb, Croatia
| | - H U Wani
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - V W S Wong
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, SAR, China.,State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - A Workneh
- Non-Communicable Diseases Programme, World Health Organization, Addis Ababa, Ethiopia.,Federal Ministry of Health, Addis Ababa, Ethiopia
| | - R Yacoub
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K I Yesmembetov
- National Scientific Center of Oncology and Transplantology, Astana, Kazakhstan
| | - M Youbi
- Department of Epidemiology and Disease Control, Ministry of Health, Rabat, Morocco
| | - M F Yuen
- Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, SAR, China
| | - H Nde
- Center for Disease Analysis (CDA), Lafayette, CO, USA
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7
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Chen DS, Hamoudi W, Mustapha B, Layden J, Nersesov A, Reic T, Garcia V, Rios C, Mateva L, Njoya O, Al-Busafi SA, Abdelmageed MK, Abdulla M, Adda D, Akin O, Al Baqali A, Al Dweik N, Al Ejji K, Al Ghazzawi I, Al Kaabi S, Al Naamani K, Al Qamish J, Al Sadadi M, Al Salman J, AlBadri M, Al-Romaihi HE, Ampofo W, Antonov K, Anyaike C, Arome F, Bane A, Blach S, Borodo MM, Brandon SM, Bright B, Butt MT, Cardenas I, Chan HLY, Chen CJ, Chen PJ, Chien RN, Chuang WL, Cuellar D, Derbala M, Elbardiny AA, Estes C, Farag E, Fung J, Gamkrelidze I, Genov J, Ghandour Z, Ghuloom M, Gomez B, Gunter J, Habeeb J, Hajelssedig O, Himatt SM, Hrstic I, Hu CC, Huang CF, Hui YT, Jahis R, Jelev D, John AK, Kaliaskarova KS, Kamel Y, Kao JH, Khamis J, Khattabi H, Khoudri I, Konysbekova A, Kotzev I, Lai MS, Lao WC, Lee MH, Lesi O, Li M, Lo A, Loo CK, Lukšić B, Maaroufi A, Malu AO, Mitova R, Mohamed R, Morović M, Murphy K, Nde H, Ngige E, Njouom R, Nonković D, Obekpa S, Oguche S, Okolo EE, Omede O, Omuemu C, Ondoa P, Opare-Sem O, Owusu-Ofori S, Phillips RO, Prokopenko YN, Razavi H, Razavi-Shearer D, Razavi-Shearer K, Redae B, Rinke de Wit T, Robbins S, Roberts LR, Sanad SJ, Sharma M, Simonova M, Su TH, Sultan K, Tan SS, Tchernev K, Tsang OTY, Tsang S, Tzeuton C, Ugoeze S, Uzochukwu B, Vi R, Vince A, Wani HU, Wong VWS, Workneh A, Yacoub R, Yesmembetov KI, Youbi M, Yuen MF, Schmelzer JD. Strategies to manage hepatitis C virus infection disease burden-Volume 4. J Viral Hepat 2017; 24 Suppl 2:44-63. [PMID: 29105286 DOI: 10.1111/jvh.12759] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 07/03/2017] [Indexed: 01/03/2023]
Abstract
The hepatitis C virus (HCV) epidemic was forecasted through 2030 for 17 countries in Africa, Asia, Europe, Latin America and the Middle East, and interventions for achieving the Global Health Sector Strategy on viral hepatitis targets-"WHO Targets" (65% reduction in HCV-related deaths, 90% reduction in new infections and 90% of infections diagnosed by 2030) were considered. Scaling up treatment and diagnosis rates over time would be required to achieve these targets in all but one country, even with the introduction of high SVR therapies. The scenarios developed to achieve the WHO Targets in all countries studied assumed the implementation of national policies to prevent new infections and to diagnose current infections through screening.
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Affiliation(s)
- D S Chen
- Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan
| | - W Hamoudi
- Department of Gastroenterology & Hepatology, Al Bashir Hospital, Amman, Jordan.,Jordan Ministry of Health, Amman, Jordan
| | | | - J Layden
- Department of Public Health Sciences, Loyola University Chicago, Chicago, IL, USA
| | - A Nersesov
- National Research Institute of Cardiology and Internal Diseases, Almaty, Kazakhstan
| | - T Reic
- European Liver Patients Association, Sint-Truiden, Belgium
| | - V Garcia
- Ministry of Public Health, Santo Domingo, Dominican Republic
| | - C Rios
- Department of Health Promotion and Disease Prevention, Ministry of Health and Social Protection, Bogota, Colombia
| | - L Mateva
- University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - O Njoya
- Research Laboratory on Viral Hepatitis & Health Communication, Faculty of Medicine, University of Yaoundé, Yaoundé, Cameroon
| | - S A Al-Busafi
- Division of Gastroenterology, Department of Medicine, Sultan Qaboos University Hospital, Muscat, Oman
| | | | - M Abdulla
- Salmaniya Medical Complex, Manama, Bahrain
| | - D Adda
- Civil Society Network on Hepatitis, Abuja, Nigeria.,Chagro-Care Trust (CCT), Jalingo, Nigeria
| | - O Akin
- Federal Ministry of Health, Abuja, Nigeria
| | - A Al Baqali
- Al Kindi Specialised Hospital, Manama, Bahrain
| | - N Al Dweik
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K Al Ejji
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - I Al Ghazzawi
- GI and Hepatology Department, Jordan Royal Medical Services, Amman, Jordan
| | - S Al Kaabi
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K Al Naamani
- Division of Gastroenterology and Hepatology, Department of Medicine, Armed Forces Hospital, Muscat, Oman
| | - J Al Qamish
- Gastroenterolgy Clinic, IBN Al-Nafees Hospital, Manama, Bahrain
| | | | | | - M AlBadri
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | | | - W Ampofo
- Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Ghana
| | - K Antonov
- University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - C Anyaike
- Federal Ministry of Health, Abuja, Nigeria
| | - F Arome
- Advocacy for the Prevention of Hepatitis in Nigeria, Jos, Nigeria
| | - A Bane
- Gastroenterology and Hepatology, Addis Ababa University Medical School, Addis Ababa, Ethiopia.,Ethiopian Gastroenterological Association, Addis Ababa, Ethiopia
| | - S Blach
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - M M Borodo
- Aminu Kano Teaching Hospital, Kano, Nigeria.,Bayero University, Kano, Nigeria
| | - S M Brandon
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - B Bright
- LiveWell Initiative (LWI), Lagos, Nigeria
| | - M T Butt
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - I Cardenas
- Communicable Diseases Division, Ministry of Health and Social Protection, Bogota, Colombia
| | - H L Y Chan
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China.,Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | | | - P J Chen
- National Taiwan University, Taipei, Taiwan
| | - R N Chien
- Liver Research Unit, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - W L Chuang
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan
| | - D Cuellar
- Department of Epidemiology and Demography, Ministry of Health and Social Protection, Bogota, Colombia
| | - M Derbala
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | | | - C Estes
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - E Farag
- Ministry of Public Health Qatar, Doha, Qatar
| | - J Fung
- Department of Medicine, The University of Hong Kong, Hong Kong, China
| | - I Gamkrelidze
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - J Genov
- University Hospital "Queen Joanna", Sofia, Bulgaria
| | - Z Ghandour
- BDF Hospital, Royal Medical Services, Riffa, Bahrain
| | - M Ghuloom
- Salmaniya Medical Complex, Manama, Bahrain
| | - B Gomez
- Pan American Health Organization, Washington, DC, USA
| | - J Gunter
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - J Habeeb
- Salmaniya Medical Complex, Manama, Bahrain
| | - O Hajelssedig
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - S M Himatt
- Ministry of Public Health Qatar, Doha, Qatar
| | - I Hrstic
- General Hospital Pula, Pula, Croatia
| | - C C Hu
- Liver Research Unit, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - C F Huang
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan
| | - Y T Hui
- Department of Medicine, Queen Elizabeth Hospital, Hong Kong, China
| | - R Jahis
- Disease Control Division, Ministry of Health, Putrajaya, Malaysia
| | - D Jelev
- University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - A K John
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K S Kaliaskarova
- Ministry of Healthcare and Social Development of the Republic of Kazakhstan, Astana, Kazakhstan.,Republican Coordination Center for Hepatology and Gastroenterology, Astana, Kazakhstan
| | - Y Kamel
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar.,Department of Medicine, Miniya University, Minya, Egypt
| | - J H Kao
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - J Khamis
- Salmaniya Medical Complex, Manama, Bahrain
| | - H Khattabi
- Eastern Mediterranean Regional Office, World Health Organization, Cairo, Egypt
| | - I Khoudri
- Department of Epidemiology and Disease Control, Ministry of Health, Rabat, Morocco
| | - A Konysbekova
- Republican Diagnostic Center, Astana, Kazakhstan.,University Medical Center, Astana, Kazakhstan
| | - I Kotzev
- University Hospital "St. Marina", Varna, Bulgaria
| | - M S Lai
- Department of Medicine, North District Hospital, Hong Kong, China
| | - W C Lao
- Department of Medicine, Pamela Youde Nethersole Eastern Hospital, Hong Kong, China
| | - M H Lee
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - O Lesi
- University of Lagos, Lagos, Nigeria.,Lagos University Teaching Hospital, Lagos, Nigeria
| | - M Li
- Division of Gastroenterology and Hepatology, Department of Medicine and Geriatrics, Tuen Mun Hospital, Hong Kong, China
| | - A Lo
- Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - C K Loo
- Department of Medicine and Geriatrics, Kwong Wah Hospital, Hong Kong, China
| | - B Lukšić
- Clinical Department of Infectious Diseases, Split University Hospital and Split University Medical School, Split, Croatia
| | - A Maaroufi
- Department of Epidemiology and Disease Control, Ministry of Health, Rabat, Morocco
| | - A O Malu
- Benue State University Teaching Hospital, Makurdi, Nigeria
| | - R Mitova
- University Hospital "Queen Joanna", Sofia, Bulgaria
| | - R Mohamed
- University of Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - M Morović
- Department of Infectious Diseases, Zadar General Hospital, Zadar, Croatia
| | - K Murphy
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - H Nde
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - E Ngige
- Federal Ministry of Health, Abuja, Nigeria
| | - R Njouom
- Virology Department, Centre Pasteur of Cameroon, Yaounde, Cameroon
| | - D Nonković
- Department of Epidemiology, Institute of Public Health, Split, Croatia
| | - S Obekpa
- Advocacy for the Prevention of Hepatitis in Nigeria, Jos, Nigeria.,Benue State University Teaching Hospital, Makurdi, Nigeria
| | - S Oguche
- Department of Pediatrics, University of Jos, Jos, Nigeria.,Department of Medicine, University of Jos, Jos, Nigeria.,Jos University Teaching Hospital, Jos, Nigeria
| | - E E Okolo
- Beacon Youth Initiative, Lafia, Nigeria
| | - O Omede
- Federal Ministry of Health, Abuja, Nigeria
| | - C Omuemu
- University of Benin, Benin City, Nigeria
| | - P Ondoa
- Amsterdam Institute for Global Health and Development, Amsterdam, The Netherlands.,African Society of Laboratory Medicine, Addis Ababa, Ethiopia
| | - O Opare-Sem
- Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | | | - R O Phillips
- Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Y N Prokopenko
- Republican Coordination Center for Hepatology and Gastroenterology, Astana, Kazakhstan
| | - H Razavi
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | | | | | - B Redae
- Ethiopian Gastroenterological Association, Addis Ababa, Ethiopia.,St. Paul's Hospital Millennium College, Addis Ababa, Ethiopia
| | - T Rinke de Wit
- PharmAccess Foundation, Department of Global Health, University of Amsterdam, Amsterdam, The Netherlands
| | - S Robbins
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - L R Roberts
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - S J Sanad
- BDF Hospital, Royal Medical Services, Riffa, Bahrain
| | - M Sharma
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - M Simonova
- Clinic of Gastroenterology, Military Medical Academy, Sofia, Bulgaria
| | - T H Su
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - K Sultan
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - S S Tan
- Department of Hepatology, Selayang Hospital, Selangor, Malaysia
| | | | - O T Y Tsang
- Department of Medicine and Geriatrics, Princess Margaret Hospital Authority, Hong Kong, SAR China
| | - S Tsang
- Department of Medicine, Tseung Kwan O Hospital, Hong Kong, China
| | - C Tzeuton
- Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
| | - S Ugoeze
- Federal Medical Centre, Jalingo, Nigeria
| | - B Uzochukwu
- Institute of Public Health, University of Nigeria, Nsukka, Nigeria
| | - R Vi
- Republican Coordination Center for Hepatology and Gastroenterology, Astana, Kazakhstan.,International HepatoTransplant Group, Astana, Kazakhstan
| | - A Vince
- Medical School University of Zagreb, University Hospital of Infectious Diseases Zagreb, Zagreb, Croatia
| | - H U Wani
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - V W S Wong
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China.,State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - A Workneh
- Non-Communicable Diseases Programme, World Health Organization, Addis Ababa, Ethiopia.,Federal Ministry of Health, Addis Ababa, Ethiopia
| | - R Yacoub
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K I Yesmembetov
- National Scientific Center of Oncology and Transplantation, Astana, Kazakhstan
| | - M Youbi
- Department of Epidemiology and Disease Control, Ministry of Health, Rabat, Morocco
| | - M F Yuen
- Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - J D Schmelzer
- Center for Disease Analysis (CDA), Lafayette, CO, USA
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8
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Gomez B. ADDRESSING FOOD DISPARITIES FOR OLDER ADULTS IN WATTS: A CASE STUDY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.3034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- B. Gomez
- University of La Verne, Rancho Cucamonga, California
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9
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de Quintana Schmidt C, Leidinger A, Gomez B, Granell E, Gallego O, Craven J, Salgado L, Rico M, Aibar J, Molet J. P16.04 Practical application of intraoperative tractography on awake brain surgery. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.420] [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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10
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Abstract
Anisakis simplex, a common parasite of the fish we eat, can cause eosinophilic enteriis by direct parasitization. The authors describe six cases of intestinal anisakiasis dignosed by morphologic and immunologic studies in vivo and in vitro, five being retospective cases of unclassified eosinophilic enteritis. All patients presented with symptoms of acute abdomen requiring urgent surgery. They all had segmental lesions in the jejunum and/or ileum. Histologically the authors observed eosinophilic miroabscesses; in two cases Anisakis larvae were found. None of the patients declared having eaten raw fish. The surgical pathologist plays a basic role in detecting this disase, although additional serologic investigation of anti-Anisakis IgE and a skin test should be done whenever possible.
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Affiliation(s)
| | - E. Zozaya
- Service of Pathology, Hospital de Navarra, Pamplona
| | - A. I. Tabar
- Section of Allergology, Hospital “Virgen del Camino,” Pamplona, Spain
| | | | - B. Gomez
- Section of Allergology, Hospital ‘Virgen del Camino,’ Pamplona, Spain
| | - C. Valenti
- Service of Pathology, Hospital de Navarra, Pamplona
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11
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Binse I, Poeppel TD, Ruhlmann M, Gomez B, Umutlu L, Bockisch A, Rosenbaum-Krumme SJ. Imaging with (124)I in differentiated thyroid carcinoma: is PET/MRI superior to PET/CT? Eur J Nucl Med Mol Imaging 2015; 43:1011-7. [PMID: 26686334 DOI: 10.1007/s00259-015-3288-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 12/09/2015] [Indexed: 10/22/2022]
Abstract
PURPOSE The aim of this study was to compare integrated PET/CT and PET/MRI for their usefulness in detecting and categorizing cervical iodine-positive lesions in patients with differentiated thyroid cancer using (124)I as tracer. METHODS The study group comprised 65 patients at high risk of iodine-positive metastasis who underwent PET/CT (low-dose CT scan, PET acquisition time 2 min; PET/CT2) followed by PET/MRI of the neck 24 h after (124)I administration. PET images from both modalities were analysed for the numbers of tracer-positive lesions. Two different acquisition times were used for the comparisons, one matching the PET/CT2 acquisition time (2 min, PET/MRI2) and the other covering the whole MRI scan time (30 min, PET/MRI30). Iodine-positive lesions were categorized as metastasis, thyroid remnant or inconclusive according to their location on the PET/CT images. Morphological information provided by MRI was considered for evaluation of lesions on PET/MRI and for volume information. RESULTS PET/MRI2 detected significantly more iodine-positive metastases and thyroid remnants than PET/CT2 (72 vs. 60, p = 0.002, and 100 vs. 80, p = 0.001, respectively), but the numbers of patients with at least one tumour lesion identified were not significantly different (21/65 vs. 17/65 patients). PET/MRI30 tended to detect more PET-positive metastases than PET/MRI2 (88 vs. 72), but the difference was not significant (p = 0.07). Of 21 lesions classified as inconclusive on PET/CT, 5 were assigned to metastasis or thyroid remnant when evaluated by PET/MRI. Volume information was available in 34 % of iodine-positive metastases and 2 % of thyroid remnants on PET/MRI. CONCLUSIONS PET/MRI of the neck was found to be superior to PET/CT in detecting iodine-positive lesions. This was attributed to the higher sensitivity of the PET component, Although helpful in some cases, we found no substantial advantage of PET/MRI over PET/CT in categorizing iodine-positive lesions as either metastasis or thyroid remnant. Volume information provided by MRI for some iodine-positive lesions might be useful in dosimetry.
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Affiliation(s)
- I Binse
- Medical Faculty, Department of Nuclear Medicine, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany.
| | - T D Poeppel
- Medical Faculty, Department of Nuclear Medicine, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany
| | - M Ruhlmann
- Medical Faculty, Department of Nuclear Medicine, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany
| | - B Gomez
- Medical Faculty, Department of Nuclear Medicine, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany
| | - L Umutlu
- Medical Faculty, Department of Radiology, University of Duisburg-Essen, Essen, Germany
| | - A Bockisch
- Medical Faculty, Department of Nuclear Medicine, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany
| | - S J Rosenbaum-Krumme
- Medical Faculty, Department of Nuclear Medicine, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany
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Gomez B, Silver C, Cullum M, Resch J. B-36ImPACT Performance of High School Ahletes with ADHD. Arch Clin Neuropsychol 2015. [DOI: 10.1093/arclin/acv047.132] [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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Beiderwellen K, Kinner S, Gomez B, Heusch P, Umutlu L, Bockisch A, Lauenstein T. Multimodale Dünndarmdiagnostik mittels PET/MR Enterografie: Erste Erfahrungen. ROFO-FORTSCHR RONTG 2015. [DOI: 10.1055/s-0035-1550907] [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: 10/23/2022]
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Schaarschmidt B, Buchbender C, Gomez B, Nensa F, Grueneisen J, Ruhlmann V, Wetter A, Antoch G, Heusch P. Incidentelle Traceranreicherungen im Kopf-/Hals-Bereich: Vergleich zwichen 18F-FDG PET/MRT und 18F-FDG PET/CT. ROFO-FORTSCHR RONTG 2015. [DOI: 10.1055/s-0035-1551333] [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: 10/23/2022]
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Riu G, Victoria I, Garcia LG, Molas G, Pazo FD, Creus N, Gomez B, Vidal L. Implementation of a Pharmaceutical Care Programme for Patients Treated with Investigational Oral Drugs in a Clinical Trials Unit. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu331.48] [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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Kinner S, Gomez B, Pöppel TD, Grüneisen J, Nassenstein K, Bockisch A, Nagarajah J. 18F-FDG- PET/MRT der Brust: Vergleich 16 versus 4 Kanal Spule im Rahmen des lokalen Stagings bei Mammakarzinom Patientinnen: erste Ergebnisse. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1373177] [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: 10/25/2022]
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Heusch P, Buchbender C, Köhler J, Nensa F, Beiderwellen K, Kühl H, Lanzman RS, Wittsack HJ, Gomez B, Gauler T, Schuler M, Forsting M, Bockisch A, Antoch G, Heusner TA. Correlation of the apparent diffusion coefficient (ADC) with the standardized uptake value (SUV) in hybrid 18F-FDG PET/MRI in non-small cell lung cancer (NSCLC) lesions: initial results. ROFO-FORTSCHR RONTG 2013; 185:1056-62. [PMID: 23860802 DOI: 10.1055/s-0033-1350110] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
PURPOSE To compare the apparent diffusion coefficient (ADC) in non-small cell lung cancer lesions with standardized uptake values (SUV) derived from combined 18F-fluoro-deoxy-glucose-positron emission tomography/magnetic resonance imaging (FDG-PET/MRI) and those derived from FDG-PET/CT. MATERIALS AND METHODS In 18 consecutive patients with histologically proven NSCLC (17 men, 1 woman; mean age, 61 ± 12 years), whole-body FDG-PET/MRI was performed after whole-body FDG-PET/CT. Regions of interest (ROI) encompassing the entire primary tumor were drawn into FDG-PET/CT and FDG-PET/MR images to determine the maximum and mean standardized uptake value (SUVmax; SUVmean) and into ADC parameter maps to assess mean ADC values. Pearson's correlation coefficients were calculated to compare SUV and ADC values. RESULTS The SUVmax of NSCLC was 12.3 ± 4.8 [mean ±SD], and the SUVmean was 7.2 ± 2.8 as assessed by FDG-PET/MRI. The SUVmax and SUVmean derived from FDG-PET/CT and FDG-PET/MRI correlated well (R = 0.93; p < 0.001 and R = 0.92; p < 0.001, respectively). The ADCmean of the pulmonary tumors was 187.9 ± 88.8 × 10-5 mm²/s [mean ± SD]. The ADCmean exhibited a significant inverse correlation with the SUVmax (R = -0.72; p < 0.001) as well as with the SUVmean assessed by FDG-PET/MRI (R = -0.71; p < 0.001). CONCLUSION This simultaneous PET/MRI study corroborates the assumed significant inverse correlation between increased metabolic activity on FDG-PET and restricted diffusion on DWI in NSCLC.Citation Format:
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Affiliation(s)
- P Heusch
- Department of Diagnostic and Interventional Radiology, D-40225 Dusseldorf, Germany, Univ Dusseldorf, Medical Faculty, Düsseldorf
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Van de Voorde P, Emerson B, Gomez B, Willems J, Yildizdas D, Iglowstein I, Kerkhof E, Mullen N, Pinto CR, Detaille T, Qureshi N, Naud J, De Dooy J, Van Lancker R, Dupont A, Boelsma N, Mor M, Walker D, Sabbe M, Hachimi-Idrissi S, Da Dalt L, Waisman H, Biarent D, Maconochie I, Moll H, Benito J. Paediatric community-acquired septic shock: results from the REPEM network study. Eur J Pediatr 2013; 172:667-74. [PMID: 23354787 PMCID: PMC3631515 DOI: 10.1007/s00431-013-1930-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Revised: 01/04/2013] [Accepted: 01/06/2013] [Indexed: 11/30/2022]
Abstract
UNLABELLED INTRODUCTION AND PURPOSE OF THE STUDY: With this study we aimed to describe a "true world" picture of severe paediatric 'community-acquired' septic shock and establish the feasibility of a future prospective trial on early goal-directed therapy in children. During a 6-month to 1-year retrospective screening period in 16 emergency departments (ED) in 12 different countries, all children with severe sepsis and signs of decreased perfusion were included. RESULTS A 270,461 paediatric ED consultations were screened, and 176 cases were identified. Significant comorbidity was present in 35.8 % of these cases. Intensive care admission was deemed necessary in 65.7 %, mechanical ventilation in 25.9 % and vasoactive medications in 42.9 %. The median amount of fluid given in the first 6 h was 30 ml/kg. The overall mortality in this sample was 4.5 %. Only 1.2 % of the survivors showed a substantial decrease in Paediatric Overall Performance Category (POPC). 'Severe' outcome (death or a decrease ≥2 in POPC) was significantly related (p < 0.01) to: any desaturation below 90 %, the amount of fluid given in the first 6 h, the need for and length of mechanical ventilation or vasoactive support, the use of dobutamine and a higher lactate or lower base excess but not to any variables of predisposition, infection or host response (as in the PIRO (Predisposition, Infection, Response, Organ dysfunction) concept). CONCLUSION The outcome in our sample was very good. Many children received treatment early in their disease course, so avoiding subsequent intensive care. While certain variables predispose children to become septic and shocked, in our sample, only measures of organ dysfunction and concomitant treatment proved to be significantly related with outcome. We argue why future studies should rather be large multinational prospective observational trials and not necessarily randomised controlled trials.
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Affiliation(s)
- P. Van de Voorde
- Paediatric Intensive care and Emergency Medicine, 1K12IC, University Hospital Ghent, De Pintelaan 185, 9000 Ghent, Belgium
| | - B. Emerson
- Paediatric Emergency Medicine, Yale-New Haven Children’s Hospital, New Haven, CT USA
| | - B. Gomez
- Paediatric Emergency Medicine, University Hospital Cruces, Barakaldo, Bilbao Spain
| | - J. Willems
- Paediatric Intensive care and Emergency Medicine, 1K12IC, University Hospital Ghent, De Pintelaan 185, 9000 Ghent, Belgium
| | - D. Yildizdas
- Paediatric Intensive Care Medicine, Çukurova University Hospital, Adana, Turkey
| | - I. Iglowstein
- Paediatric Emergency Medicine, Ostschweizer Children’s hospital, St Gallen, Switzerland
| | - E. Kerkhof
- Paediatric Emergency Medicine, Sophia Children’s Hospital, Rotterdam, The Netherlands
| | - N. Mullen
- Paediatric Emergency Medicine, St Mary’s Hospital, London, UK
| | - C. R. Pinto
- Paediatric Intensive Care Medicine, Coimbra Children’s Hospital CHUC, Coimbra, Portugal
| | - T. Detaille
- Paediatric Intensive Care and Emergency Medicine, University Hospital Louvain UCL, Brussels, Belgium
| | - N. Qureshi
- Paediatric Emergency Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - J. Naud
- Paediatric Emergency Medicine–SMUR, University Hospital Pellegrin, Bordeaux, France
| | - J. De Dooy
- Paediatric Intensive Care Medicine, Antwerp University Hospital, Antwerp, Belgium
| | - R. Van Lancker
- Emergency Medicine, University Hospital, Leuven, Belgium
| | - A. Dupont
- Paediatric Intensive Care and Emergency Medicine, University Hospital Queen Fabiola HUDERF, Brussels, Belgium
| | - N. Boelsma
- Paediatric Intensive Care Medicine, University Hospital Brussels, Brussels, Belgium
| | - M. Mor
- Paediatric Emergency Medicine, Schneider Children’s Medical Center of Israel, Petah Tikva, Tel Aviv Israel
| | - D. Walker
- Paediatric Emergency Medicine, Yale-New Haven Children’s Hospital, New Haven, CT USA
| | - M. Sabbe
- Emergency Medicine, University Hospital, Leuven, Belgium
| | - S. Hachimi-Idrissi
- Paediatric Intensive care and Emergency Medicine, 1K12IC, University Hospital Ghent, De Pintelaan 185, 9000 Ghent, Belgium ,Paediatric Intensive Care Medicine, University Hospital Brussels, Brussels, Belgium
| | - L. Da Dalt
- Paediatrics, Cà Foncello Hospital, Treviso, Italy
| | - H. Waisman
- Paediatric Emergency Medicine, Schneider Children’s Medical Center of Israel, Petah Tikva, Tel Aviv Israel
| | - D. Biarent
- Paediatric Intensive Care and Emergency Medicine, University Hospital Queen Fabiola HUDERF, Brussels, Belgium
| | - I. Maconochie
- Paediatric Emergency Medicine, St Mary’s Hospital, London, UK
| | - H. Moll
- Paediatric Emergency Medicine, Sophia Children’s Hospital, Rotterdam, The Netherlands
| | - J. Benito
- Paediatric Emergency Medicine, University Hospital Cruces, Barakaldo, Bilbao Spain
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Gonzalez de Castro D, Angulo B, Gomez B, Mair D, Martinez R, Suarez-Gauthier A, Shieh F, Velez M, Brophy VH, Lawrence HJ, Lopez-Rios F. A comparison of three methods for detecting KRAS mutations in formalin-fixed colorectal cancer specimens. Br J Cancer 2012; 107:345-51. [PMID: 22713664 PMCID: PMC3394984 DOI: 10.1038/bjc.2012.259] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND KRAS mutation testing is required to select patients with metastatic colorectal cancer (CRC) to receive anti-epidermal growth factor receptor antibodies, but the optimal KRAS mutation test method is uncertain. METHODS We conducted a two-site comparison of two commercial KRAS mutation kits - the cobas KRAS Mutation Test and the Qiagen therascreen KRAS Kit - and Sanger sequencing. A panel of 120 CRC specimens was tested with all three methods. The agreement between the cobas test and each of the other methods was assessed. Specimens with discordant results were subjected to quantitative massively parallel pyrosequencing (MPP). DNA blends were tested to determine detection rates at 5% mutant alleles. RESULTS Reproducibility of the cobas test between sites was 98%. Six mutations were detected by cobas that were not detected by Sanger, and five were confirmed by MPP. The cobas test detected eight mutations which were not detected by the therascreen test, and seven were confirmed by MPP. Detection rates with 5% mutant DNA blends were 100% for the cobas and therascreen tests and 19% for Sanger. CONCLUSION The cobas test was reproducible between sites, and detected several mutations that were not detected by the therascreen test or Sanger. Sanger sequencing had poor sensitivity for low levels of mutation.
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Affiliation(s)
- D Gonzalez de Castro
- Molecular Diagnostics Department, The Institute of Cancer Research and the Royal Marsden NHS Foundation Trust, 15 Cotswold Road, London SM2 5NG, UK.
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Abstract
BACKGROUND AND AIMS At the beginning of the Late Cretaceous, angiosperms already inhabited all the environments and overtopped previously gymnosperm-dominated floras, especially in disturbed freshwater-related environments. The aim of this paper is to define what fossil plant ecology occurred during the early Cretaceous in order to follow the early spread of angiosperm taxa. METHODS Floristic lists and localities from the Barremian to the Albian of Europe are analysed with the Wagner's Parsimony Method. KEY RESULTS The Wagner's Parsimony Method indicates that (a) during the Barremian, matoniaceous ferns formed a savannah-like vegetation, while angiosperms composed freshwater aquatic vegetation; (b) during the Late Aptian humid phase, conifers increased, while matoniaceous ferns decreased, reflecting the closure of the vegetation; and (c) from the Albian, warmer and drier conditions induced the recovery of the matoniaceous ferns, while core angiosperms first developed in floodplains. CONCLUSIONS During the late Early Cretaceous (Barremian-Albian), angiosperms showed a stepwise widening of their ecological range, being recorded first during the Barremian as aquatic plant mega-remains and at the Cenomanian onwards occurred in all the environments.
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Affiliation(s)
- C. Coiffard
- UCB Lyon 1 et UMR 5125, Paléobotanique, 7 rue Dubois, F-69622 Villeurbanne, France
| | - B. Gomez
- UMR 6118 du CNRS Géosciences, Université Rennes 1, Campus de Beaulieu, avenue du Général Leclerc, F-35042 Rennes, France
- For correspondence. E-mail
| | - F. Thevenard
- UCB Lyon 1 et UMR 5125, Paléobotanique, 7 rue Dubois, F-69622 Villeurbanne, France
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Ozawa M, Terasaki PI, Lee JH, Castro R, Alberu J, Alonso C, Alvarez I, Toledo R, Alvez H, Monterio M, Teixeira J, Campbell P, Ciszek M, Charron D, Gautreau C, Christiansen F, Conca R, Gomez B, Monteon F, Grosse-Wilde H, Heinemann F, Humar I, Kamoun M, Kimball P, Kobayashi T, Kupatawintu P, Leech S, LeFor W, Mehra N, Panigrahi A, Naumova E, Norman D, Piazza A, Poli F, Colombo B, Roy R, Schonemann C, Sireci G, Tanabe K, Ishida H, Van den Berg-Loonen E, Zeevi A. 14th International HLA and Immunogenetics Workshop: Report on the Prospective Chronic Rejection Project. ACTA ACUST UNITED AC 2007; 69 Suppl 1:174-9. [PMID: 17445195 DOI: 10.1111/j.1399-0039.2006.00765.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
An international collaborative study of 45 transplant centers was undertaken at the 14th International HLA (human leukocyte antigen) and Immunogenetics Workshop to see if HLA antibodies detected posttransplant are predictive of chronic graft failure. With the newly developed assay, MICA (major histocompatibility complex class I-related chain A) antibodies were also measured and their effect analyzed. Total of 5219 sera from patients who were more than 6 months posttransplant with functioning graft were tested for HLA antibodies by enzyme-linked immunosorbent assay, flow cytometry, or Luminex. HLA antibodies were found in 27.2% of kidney patients, 23.6% in the liver, 52.7% in the heart, and 21.7% in the lung. The method of antibody testing did not have a marked influence on the frequency of antibodies detected. MICA antibodies were detected in 15% of kidney patients, 30% of heart patients, and 31% of liver patients. Among 948 kidney patients who had HLA antibodies, 7.3% had rejected their graft within 1 year of testing, compared with 1.7% in 2615 patients without HLA antibodies (P= 0.8 x 10(-17)). Death occurred in 1.4% of total kidney patients and did not correlate to the presence of antibodies. We conclude that patients with posttransplant HLA antibodies indeed have a higher rate of chronic graft failure and that posttransplant antibodies are predictive of chronic rejection.
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Affiliation(s)
- M Ozawa
- One Lambda, Inc., Los Angeles, CA, USA.
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Tabar AI, Alvarez-Puebla MJ, Gomez B, Sanchez-Monge R, García BE, Echechipia S, Olaguibel JM, Salcedo G. Diversity of asparagus allergy: clinical and immunological features. Clin Exp Allergy 2004; 34:131-6. [PMID: 14720273 DOI: 10.1111/j.1365-2222.2004.01856.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Asparagus (Asparagus officinalis) is an extensively grown and consumed vegetable. To a lesser extent than other Liliaceae vegetables, allergic contact dermatitis (ACD) due to asparagus has been reported. However, only a few case reports of asparagus IgE-mediated allergy have been published. In a previous study, we demonstrated that two lipid transfer proteins (LTPs) (Aspa o 1.01 and Aspa o 1.02) were relevant allergens of asparagus. OBJECTIVE We retrospectively analysed the 27 patients diagnosed with asparagus allergy during the last 5 years. All of them reported adverse symptoms after either asparagus ingestion or handling. We describe their clinical features and evaluate whether they were associated to immunological findings (immunoblot pattern and skin reactivity to LTPs). METHODS Patients underwent skin prick and patch tests with standard panels of vegetables and aeroallergens. Besides crude asparagus extract, two purified LTPs were prick and patch tested. Total and specific IgE measurements and asparagus extract IgE immunoblotting were performed. Patients reporting asthma symptoms underwent specific inhalation challenge to asparagus. RESULTS Of the 27 subjects, eight had ACD, 17 had IgE-mediated allergy and two had both ACD- and IgE-mediated allergy. Positive patch tests with the crude asparagus extract but not with LTPs were observed in subjects with ACD (n=10). Of 19 patients with IgE-mediated disease, 10 had contact urticaria after asparagus handling. Of them, five subjects and five others without skin allergy showed respiratory symptoms; of them, eight were diagnosed with occupational asthma confirmed by positive asparagus inhalation challenge, whereas the remaining two had isolated rhinitis. Four patients suffered from immediate allergic reactions related to asparagus ingestion (food allergy); three of them reported anaphylaxis whereas the other had oral allergic syndrome. Positive IgE immunoblotting (bands of 15 and 45-70 kDa) was observed in 10 subjects. Of 10 subjects with positive prick test to LTPs, six showed bands at 15 kDa. Either IgE-binding bands or positive prick tests to LTPs were observed in asthma (62%) and anaphylaxis (67%). CONCLUSION Asparagus is a relevant source of occupational allergy inducing ACD and also IgE-mediated reactions. Severe disease (anaphylaxis or asthma) is common and LTPs seem to play a major role. The clinical relevance of LTP sensitization among patients with mild disease or symptom-free subjects should be addressed in prospective studies.
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Affiliation(s)
- A I Tabar
- Servicio de Alergología, Hospital Virgen del Camino, Pamplona, Spain and Unidad de Bioquímica, Dept. Biotecnología, ETS Ingenieros Agrónomos, Ciudad Universitaria, Madrid, Spain.
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Zhu J, Watanabe I, Gomez B, Thornhill WB. Determinants involved in Kv1 potassium channel folding in the endoplasmic reticulum, glycosylation in the Golgi, and cell surface expression. J Biol Chem 2001; 276:39419-27. [PMID: 11487588 DOI: 10.1074/jbc.m107399200] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Kv1.1 and Kv1.4 potassium channels are expressed as mature glycosylated proteins in brain, whereas they exhibited striking differences in degree of trans-Golgi glycosylation conversion and high cell surface expression when they were transiently expressed as homomers in cell lines. Kv1.4 exhibited a 70% trans-Golgi glycosylation conversion, whereas Kv1.1 showed none, and Kv1.4 exhibited a approximately 20-fold higher cell surface expression level as compared with Kv1.1. Chimeras between Kv1.4 and Kv1.1 and site-directed mutants were constructed to identify amino acid determinants that affected these processes. Truncating the cytoplasmic C terminus of Kv1.4 inhibited its trans-Golgi glycosylation and high cell surface expression (as shown by Li, D., Takimoto, K., and Levitan, E. S. (2000) J. Biol. Chem. 275, 11597-11602), whereas truncating this region on Kv1.1 did not affect either of these events, indicating that its C terminus is not a negative determinant for these processes. Exchanging the C terminus between these channels showed that there are other regions of the protein that exert a positive or negative effect on these processes. Chimeric constructs between Kv1.4 and Kv1.1 identified their outer pore regions as major positive and negative determinants, respectively, for both trans-Golgi glycosylation and cell surface expression. Site-directed mutagenesis identified a number of amino acids in the pore region that are involved in these processes. These data suggest that there are multiple positive and negative determinants on both Kv1.4 and Kv1.1 that affect channel folding, trans-Golgi glycosylation conversion, and cell surface expression.
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Affiliation(s)
- J Zhu
- Department of Biological Sciences, Fordham University, Bronx, New York 10458, USA
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Guerrero-Plata A, Ortega E, Gomez B. Persistence of respiratory syncytial virus in macrophages alters phagocytosis and pro-inflammatory cytokine production. Viral Immunol 2001; 14:19-30. [PMID: 11270594 DOI: 10.1089/08828240151061347] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Functions of macrophage are known to be altered by acute infection with respiratory syncytial virus (RSV). However, it is unknown whether the persistent presence and expression of the RSV genome have any effect on the functions of these cells. We used a murine macrophage-like cell line (P388D1) persistently infected with RSV to determine: (i) phagocytic activity mediated by Fcgamma receptors, (ii) expression of Fcgamma receptors, and (iii) production of IL-1beta, IL-6 and TNF-alpha. Viral persistence was found to increase phagocytosis, expression of Fcgamma receptors and the production of IL-1beta and IL-6. In contrast the biological activity of secreted TNF-alpha decreased. In this study we give novel evidence that RSV persistence alters the biological activities of macrophages.
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Affiliation(s)
- A Guerrero-Plata
- Departamento de Microbiologia y Parasitologia, Facultad de Medicina, Universidad Nacional Autónoma de México, México
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Viejo G, Gomez B, De Miguel D, Del Valle A, Otero L, De La Iglesia P. Campylobacter fetus subspecies fetus bacteremia associated with chorioamnionitis and intact fetal membranes. Scand J Infect Dis 2001; 33:126-7. [PMID: 11233847 DOI: 10.1080/003655401750065517] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Campylobacter fetus subspecies fetus was isolated from the blood of a patient with chorioamnionitis and intact fetal membranes. The mother improved after appropriate antibiotic treatment, but the infant died of neonatal infection a few minutes after delivery. This is a very unusual etiology of intra-amniotic infection.
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Affiliation(s)
- G Viejo
- Servicio de Microbiología, Hospital de Cabueñes, Gijón, Asturias, Spain
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Howland J, Rohsenow DJ, Cote J, Gomez B, Mangione TW, Laramie AK. Effects of low-dose alcohol exposure on simulated merchant ship piloting by maritime cadets. Accid Anal Prev 2001; 33:257-265. [PMID: 11204897 DOI: 10.1016/s0001-4575(00)00040-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The US Department of Transportation (DOT) regulates on-the-job alcohol use by operators of certain categories of commercial transport. For aircraft, trains, and commercial vessels, operators are subject to sanctions for having > or = 0.04 g% blood alcohol concentration (BAC). This study examines the effects of alcohol (between 0.04 and 0.05 g% BAC) on simulated merchant ship handling. A two-group randomized factorial design was used to compare beverage alcohol to placebo while controlling for baseline performance on a previous day. The study was conducted in the Maritime Simulation Center at Maine Maritime Academy, Castine, ME. Participants were 38 volunteer deck officer cadets in their junior or senior year, at least 21 years of age, with previous experience on a bridge simulator. Following a baseline trial on Day 1, on Day 2 participants were randomized to receive alcohol (0.6 g/kg for males and 0.5 g/kg for females) or placebo. After allowing time for absorption, participants completed a bridge simulator task. For baseline and performance trials, participants were randomized to one of four bridge simulator scenarios, each representing passage of a fully loaded container vessel through a channel with commercial traffic. The aggregate scenario score given by blinded maritime educators measured performance. A main effect for alcohol was found indicating that performance was significantly impaired by this low dose of alcohol relative to performance in the placebo condition. These findings are consistent with current federal regulations that limit low-dose alcohol exposure for the operators of commercial transport vehicles. Further research is required to determine effects at lower BACs.
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Affiliation(s)
- J Howland
- Boston University School of Public Health, MA 02118, USA.
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Gomez B, Fulthorpe C, Carter L, Berryman K, Browne G, Green M, Hicks M, Trustrum N. Continental margin sedimentation to be studied in New Zealand. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/01eo00082] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Gomez B, Martín-Closas C, Barale G, Thévenard F. A new species of Nehvizdya (Ginkgoales) from the Lower Cretaceous of the Iberian Ranges (Spain). Rev Palaeobot Palynol 2000; 111:49-70. [PMID: 10936606 DOI: 10.1016/s0034-6667(00)00017-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A new species of the formerly monospecific genus Nehvizdya Hlustík, Nehvizdya penalveri sp. nov. is described from the Albian of the Escucha Formation (Eastern Iberian Ranges, Teruel, Spain). The type species Nehvizdya obtusa Hlustík was first found in the Lower-Middle Cenomanian Peruc Member of the Peruc-Korycany Formation (Bohemian Massif, Czech Republic). Both taxa closely resemble each other, not only in leaf shape and venation pattern, but also in their epidermal structures and the occurrence of resin bodies. The Spanish species, however, is notable for its marked amphistomatic leaves with stomatal apparatus, which have inner folds inside the stomatal pits. Comparison with Eretmophyllum andegavense Pons et al. from the Cenomanian of the Baugeois Clays (Maine-et-Loire, France) allows us to transfer this species to the genus Nehvizdya Hlustík. The new combination proposed is Nehvizdya andegavense (Pons et al.) comb. nov. A taphonomic analysis in this layer appears to characterise a biocoenosis formed from N. penalveri sp. nov. and Frenelopsis alata (K. Feistmantel) Knoblock. Similar associations have been described in the Czech and French Cenomanian. In all three cases, the associations grew around coastal lagoons and ponds where they formed a shrubby halophyte vegetation.
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Affiliation(s)
- B Gomez
- Laboratoire de Biodiversité, Evolution des Végétaux Actuels et Fossiles, Université Claude Bernard, 43, Boulevard du 11 Novembre 1918, 69622, Villeurbanne cedex, France
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Villaverde S, San Martin A, Baragana F, De La Fuente P, Paneda F, Gomez B. The tension free vaginal tape for the surgical correction of female stress urinary incontinence. Int J Gynaecol Obstet 2000. [DOI: 10.1016/s0020-7292(00)86240-2] [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: 11/16/2022]
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del Pozo V, Arrieta I, Tuñon T, Cortegano I, Gomez B, Cárdaba B, Gallardo S, Rojo M, Renedo G, Palomino P, Tabar AI, Lahoz C. Immunopathogenesis of human gastrointestinal infection by Anisakis simplex. J Allergy Clin Immunol 1999; 104:637-43. [PMID: 10482840 DOI: 10.1016/s0091-6749(99)70336-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Anisakis simplex is a parasite of fish, and in the case of human infestation, it should be considered as a possible cause of gastrointestinal disease, especially in countries where raw or undercooked fish is a frequent food. Clinical features of anisakiasis may simulate acute abdominal pain, such as that found in patients with gastric ulcers, appendicitis, and Crohn's disease. Furthermore, many cases of anisakiasis are diagnosed as eosinophilic gastroenteritis, which is a broad term for a specific disease. OBJECTIVE The purpose of this study was to investigate the immunopathogenesis of human gastrointestinal infestation by A simplex. METHODS Thirteen intestinal biopsy specimens from patients with anisakiasis were analyzed for the presence of messenger (m)RNA for different cytokines and inflammatory mediators by RT-PCR. Specific IgE, eosinophil cationic protein, eosinophil protein X, and tryptase levels were measured in each patient's serum. Also, cell cultures were set up with lymphocytes from some patients and stimulated in vitro with Anisakis and Ascaris antigens. RESULTS We performed immunologic phenotyping in 13 patients. All patients underwent biopsy after emergency surgery caused by episodes of acute abdominal pain. In all cases inflammatory infiltrate composed of eosinophils and lymphocytes was found in the intestinal wall. We demonstrated that after infestation, a T(H2)-type immune response occurred. Also, major basic protein, nitric oxide, and eotaxin were found in the tissue, and eosinophil cationic protein and eosinophil protein X levels were elevated in sera. CONCLUSION These data and in vitro lymphocyte cultures indicate that a T(H2) mechanism plays an important role in the inflammatory infiltrate produced by the anchorage of parasites in the gastrointestinal wall.
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Affiliation(s)
- V del Pozo
- Immunology Department, Fundación Jiménez Díaz, Madrid, Spain
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Abstract
Phospholipids and tightly bound cardiolipin (CL) can be removed from Tween 20 solubilized bovine cytochrome bc(1) (EC 1.10.2.2) by digestion with Crotalus atrox phospholipase A(2). The resulting CL-free enzyme exhibits all the spectral properties of native cytochrome bc(1), but is completely inactive. Full electron transfer activity is restored by exogenous cardiolipin added in the presence of dioleoylphosphatidylcholine (DOPC) and dioleoylphosphatidylethanolamine (DOPE), but not by cardiolipin alone or by mixtures of phospholipids lacking cardiolipin. Acidic, nonmitochondrial phospholipids, e.g., monolysocardiolipin or phosphatidylglycerol, partially reactivate CL-free cytochrome bc(1) if they are added together with DOPC and DOPE. Phospholipid removal from the Tween 20 solubilized enzyme, including the tightly bound cardiolipin, does not perturb the environment of either cytochrome b(562) or b(566), nor does it cause the autoreduction of cytochrome c(1). Cardiolipin-free cytochrome bc(1) also binds antimycin and myxothiazol normally with the expected red shifts in b(562) and b(566), respectively. However, the CL-free enzyme is much less stable than the lipid-rich preparation, i.e., (1) many chromatographic methods perturb both cytochrome b(566)() (manifested by a hypsochromic effect, i.e., blue shift of 1.5-1.7 nm) and cytochrome c(1) (evidenced by autoreduction in the absence of reducing agents); (2) affinity chromatographic purification of the enzyme causes pronounced loss of subunits VII and XI (65-80% decrease) and less significant loss of subunits I, IV, V, and X (20-30% decrease); and (3) high detergent-to-protein ratios result in disassembly of the complex. We conclude that the major role of the phospholipids surrounding cytochrome bc(1), especially cardiolipin, is to stabilize the quaternary structure. In addition, bound cardiolipin has an additional functional role in that it is essential for enzyme activity.
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Affiliation(s)
- B Gomez
- Department of Biochemistry, The University of Texas Health Science Center, San Antonio 78284-7760, USA
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Trustrum N, Gomez B, Page M, Reid L, Hicks D. Sediment production and output: The relative role of large magnitude events in steepland catchments. ACTA ACUST UNITED AC 1999. [DOI: 10.1127/zfgsuppl/115/1999/71] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Gomez B, Robinson NC. Quantitative determination of cardiolipin in mitochondrial electron transferring complexes by silicic acid high-performance liquid chromatography. Anal Biochem 1999; 267:212-6. [PMID: 9918673 DOI: 10.1006/abio.1998.2998] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Quantitative determination of cardiolipin from two mitochondrial electron-transferring complexes was achieved using a rapid and sensitive silicic acid HPLC method combined with digital analysis of the elution profile. Phospholipid samples containing as little as 0. 01 nmol of cardiolipin were accurately analyzed. Phospholipids from detergent-solubilized cytochrome bc1 (EC 1.10.2.2) and cytochrome c oxidase (EC 1.9.3.1) were extracted by an organic two-phase system and analyzed by isocratic normal-phase HPLC after dissolving the dried sample in the mobile phase (cyclohexane:2-propanol:5 mM phosphoric acid, 50:50:2.9, v/v/v). Analysis was performed by the method of standard addition in which increasing amounts of cardiolipin (0 to 5 nmol) are added to a constant amount of phospholipid extract containing an unknown amount of cardiolipin. By determining the slope and intercept of a plot of the HPLC elution peak area as a function of the amount of standard cardiolipin added, the amount of cardiolipin in the unknown is determined. By this analysis, purified, detergent-solubilized bovine heart cytochrome bc1 and cytochrome c oxidase contained 9.2 +/- 0.7 and 3.05 +/- 0.05 mol cardiolipin per mole of enzyme, respectively. The method was also used to prove that cardiolipin could be completely removed from each complex by digestion with Crotalus atrox phospholipase A2, i.e., each delipidated complex contained less than 0.05 mol cardiolipin per mole of complex. The rapidity and high sensitivity of this method make it very useful for analysis of cardiolipin in other biological samples.
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Affiliation(s)
- B Gomez
- Department of Biochemistry, University of Texas Health Science Center, San Antonio, Texas, 78284-7760, USA
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Delgado O, Feliciangeli MD, Gomez B, Alvarado J, García L, Bello C. The re-emergence of American visceral leishmaniasis in an old focus in Venezuela: present situation of human and canine infections. Parasite 1998; 5:317-23. [PMID: 9879554 DOI: 10.1051/parasite/1998054317] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The report of a new autochthonous case of human American Visceral Leishmaniasis (AVL) in 1992 in the village of Guayabita, Aragua State, Venezuela (10 degrees 16'N, 67 degrees 28'W; 500 m asl), led us to undertake an epidemiological study in this locality. A demographic survey was conducted using a structured questionnaire in which data was collected regarding sex, age, occupation, length of residence in the area and migratory history. A leishmanin skin test (LST) was applied and samples of venous blood for counter immunoelectrophoresis (CIEP) and immunofluorescent antibodies (IFAT) tests were drawn. The prevalence of positive LST was 11.4%. The positivity was highest among males and increased with age. Young males seemed to be more exposed to infection than females. Since occupation per se did not seem to account for this association, it may be explained as a gender-associated behavior, leading to different degrees of exposure to sand flies. The canine population was also screened for leishmanial infection. One dog was shown to be parasitologically infected with Leishmania sp. Four out of 71 dogs (5.6%) were positive for FG, CIEP, IFAT and Western Blot and 11 (15.5%) were positive for CIEP. These results suggest that after almost 30 years of epidemiological silence, American visceral leishmaniasis has re-emerged in this focus.
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Affiliation(s)
- O Delgado
- Instituto de Medicina Tropical, Universidad Central de Venezuela, Caracas
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Abstract
The purpose of this paper is to assess the internal consistency of self-reported condom use among sex workers in Puerto Plata and Santo Domingo, Dominican Republic. We examined the responses to questions about condom use among 4 cross-sectional samples of sex workers. We compared measures based on: (1) questions using always-to-never scales; (2) questions about use with the past 5 clients; and (3) questions about use in the past week obtained from a retrospective coital log. In each sample, more women reported 'always' using condoms with clients than with each of the past 5 clients. In 3 of the 4 samples, only about half of the women who reported 'always' using condoms used condoms with the most recent 5 clients and with all clients in the past week. Internal consistency was significantly higher when the comparison was limited to use with the most recent 5 clients and use in the past week. Self-reported measures of condom use can be difficult to interpret. Assessing the internal consistency of several measures of use provides insight into the strengths and weaknesses of each measure.
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Affiliation(s)
- S S Weir
- Family Health International, Durham, NC, USA
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Gomez B, Sanchez E, Feliciangeli MD. Man-vector contact of phlebotomine sand flies (Diptera: Psychodidae) in north-central Venezuela as assessed by blood meal identification using dot-ELISA. J Am Mosq Control Assoc 1998; 14:28-32. [PMID: 9599320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Human bait is traditionally used to assess man-vector contact, which is a key point in the study of the epidemiology of vector-borne diseases. However, in highly endemic foci, where this method should be avoided, this information could be obtained by blood meal analysis of engorged insects. In the village El Ingenio, Miranda State, Venezuela, Lutzomyia ovallesi and Lutzomyia gomezi are vectors of cutaneous leishmaniasis (CL). From June 1994 to March 1995, sand flies were collected inside houses on 974 CDC trap nights from 1900 to 0700 h. A total of 7,281 female sand flies were caught: 68.7% of them were identified as L. ovallesi, and 3.3% were identified as L. gomezi. Almost all of the blood-engorged flies (233 of 237) were dissected and identified, and gut contents were examined by dot enzyme-linked immunosorbant assay (dot-ELISA) using antisera against humans and common household animals including the domestic mouse. The Human Blood Index was 0.817 for L. ovallesi. These results suggest that intradomiciliary transmission may occur and account for the cases of CL frequently observed in newborn children in El Ingenio.
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Affiliation(s)
- B Gomez
- Facultad de Ciencias de la Salud, BIOMED, Núcleo Aragua, Universidad de Carabobo, Maracay, Venezuela
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Diéguez G, Fernández N, García JL, García-Villalón AL, Monge L, Gomez B. Role of nitric oxide in the effects of hypoglycemia on the cerebral circulation in awake goats. Eur J Pharmacol 1997; 330:185-93. [PMID: 9253952 DOI: 10.1016/s0014-2999(97)00181-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
This study was performed to examine the role of nitric oxide in the effects of hypoglycemia on the cerebral circulation. Hypoglycemia was induced with insulin and its effects on cerebral blood flow (measured with an electromagnetic flow transducer placed on the internal maxillary artery) were studied in awake goats under control conditions and after administration of the nitric oxide synthesis inhibitor N(G)-nitro-L-arginine methyl ester (L-NAME, 47 mg/kg). Also, cerebrovascular reactivity to vasodilator stimuli was examined during insulin-induced severe hypoglycemia, before and after L-NAME treatment. In five animals under control conditions (glycemia = 90 +/- 7 mg/dl, cerebral blood flow = 64 +/- 4 ml/min, mean systemic arterial pressure = 102 +/- 4 mmHg, cerebrovascular resistance = 1.62 +/- 0.11 mmHg/ml per min and heart rate = 73 +/- 6 beats/min), insulin decreased glycemia: when hypoglycemia was moderate (glycemia = 46 +/- 2 mg/dl) or severe (glycemia = 26 +/- 1 mg/dl) cerebral blood flow increased by 25 +/- 4% and 47 +/- 6%, and cerebrovascular resistance decreased by 18 +/- 3% and 34 +/- 4%, respectively. Under basal conditions, L-NAME did not affect glycemia but reduced resting cerebral blood flow by 37 +/- 2%, increased mean arterial pressure by 33 +/- 2% and decreased heart rate by 28 +/- 3%; after L-NAME, both moderate and severe hypoglycemia did not alter significantly resting cerebral blood flow and cerebrovascular resistance. In five other goats, L-NAME, administered during severe hypoglycemia, abolished the increase in cerebral blood flow, and increased cerebrovascular resistance and mean arterial pressure over the control (normoglycemic) values. In these animals with severe hypoglycemia, acetylcholine (0.01-1 microg), isoproterenol (0.03-3 microg) and diazoxide (0.3-9 mg), injected into the internal maxillary artery, decreased cerebrovascular resistance in a dose-dependent manner, and this decrease was similar before and after L-NAME. Therefore, insulin-induced hypoglycemia may produce cerebral vasodilatation by releasing nitric oxide and may diminish the capacity of the cerebral vasculature to release nitric oxide in response to acetylcholine.
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Affiliation(s)
- G Diéguez
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma, Madrid, Spain
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Pascale JM, Isaacs MD, Contreras P, Gomez B, Lozano L, Austin E, De Martin MC, Gregory RL, McLaughlin GL, Amador A. Immunological markers of disease progression in patients infected with the human immunodeficiency virus. Clin Diagn Lab Immunol 1997; 4:474-7. [PMID: 9220167 PMCID: PMC170553 DOI: 10.1128/cdli.4.4.474-477.1997] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Identification of inexpensive and technically simple immunological tests useful in predicting the progression to AIDS in human immunodeficiency virus (HIV)-infected patients would be especially welcome in developing countries, in which 80% of HIV-infected patients reside and health budgets are low. In the current study, we evaluated CD4+ and total lymphocyte counts and the concentrations in serum of beta 2-microglobulin, p24 antigen, and immunoglobulin A (IgA) as predictors of disease progression in 74 Panamanian HIV-positive patients and 50 HIV-negative healthy individuals. Total lymphocyte and CD4(+)-cell counts for AIDS patients (1,451 +/- 811 cells/microliters, P < 0.001, and 238 +/- 392 cells/microliters, P < 0.0001, respectively and asymptomatic patients (2,393 +/- 664 cells/microliters, P > 0.05, and 784 +/- 475 cells/microliters, P < 0.001, respectively) were lower than those observed for healthy subjects (2,596 +/- 631 cells/microliters and 1,120 +/- 296 cells/microliters, respectively). The levels of beta 2-microglobulin and IgA in serum were significantly elevated in patients with AIDS (5.7 +/- 3.6mg/liter, P < 0.001, and 541 +/- 265 mg/dl, P < 0.0002, respectively) and asymptomatic infected subjects (3.4 +/- 2.1 mg/liter, P = 0.001, and 436 +/- 216 mg/dl, P < 0.0001, respectively) compared with the levels in healthy subjects (2.2 +/- 0.7 mg/liter and 204 +/- 113 mg/dl, respectively). Nonstatistically significant differences (P > 0.05) for concentrations of p24 antigen between asymptomatic infected patients (29 +/- 13 pg/ml) and AIDS patients (40 +/- 23 pg/ml) were observed. Total lymphocyte counts of 1,750 cells/microliters or less, CD4 counts of 200 cells/microliters or less, beta 2-microglobulin concentrations in serum of 4 mg/liter or higher, concentrations of IgA in serum of 450 mg/dl or higher, and the presence in serum of p24 antigen were correlated with elevated risks for developing AIDS. Monitoring both total lymphocytes and beta 2-microglobulin identified 91% of the AIDS patients; these assays may allow reductions in the annual number of CD4(+)-cell evaluations and the costs associated with monitoring both total lymphocytes and beta 2-microglobulin identified 91% of the AIDS patients; these assays may allow reductions in the annual number of CD4(+)-cell evaluations and the costs associated with monitoring the immune status of HIV-positive patients.
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Affiliation(s)
- J M Pascale
- Department of Microbiology, Faculty of Medicine, University of Panama, Panama City
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Fonseca T, Raposo J, Gomez B, d'Oliveira JJ, de Lacerda JM. [Aplastic anemia. Alternative treatment by bone marrow transplantation]. ACTA MEDICA PORT 1997; 10:99-102. [PMID: 9245186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We report a case of a 25-year-old woman, with the diagnosis of severe aplastic anemia without a histocompatible sibling donor for bone marrow transplantation. The patient has been treated successfully with a combination of two immunosuppressive agents, cyclosporine and antilymphocyte globulin, after not responding to primary therapy with corticosteroids and growth factors. She showed a complete response to treatment, with transfusional independence, after a follow-up of 14 months. The pathophysiology of aplastic anemia, the mechanism of action and secondary effects of these treatments are discussed.
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Affiliation(s)
- T Fonseca
- Serviço Medicina I, Hospital de Santa maria, Lisboa
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Gomez B, Hugh J, Lively L, Desai A. Managed care. Perception vs reality. Adm Radiol J 1996; 15:28-9. [PMID: 10164846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Lively L, Hugh J, Gomez B, Desai A. Charting your way to the top. Adm Radiol J 1996; 15:27-8. [PMID: 10164841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Affiliation(s)
- L Lively
- AMAC (American Medical Accounting and Consulting), Atlanta, GA, USA
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Lively L, Hugh J, Gomez B, Desai A. The evolution of American medicine. Adm Radiol J 1996; 15:41-2. [PMID: 10162610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Affiliation(s)
- L Lively
- American Medical Accounting and Consulting Inc., Atlanta, GA, USA
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Lively L, Hugh J, Gomez B, Desai A. Looking beneath the surface. Adm Radiol J 1996; 15:43-4. [PMID: 10162802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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Abstract
Abstract
The pyridinium cross-links of collagen, pyridinoline (Pyd) and deoxypyridinoline (Dpd), provide structural integrity and rigidity to collagen fibrils in bone. During bone degradation (resorption), the cross-links are released into the circulation and eventually excreted in urine. Pyridinium cross-link measurements in urine have been shown to be sensitive and specific indicators of resorption by both established HPLC and newer enzyme immunoassay (EIA) techniques. We have developed a monoclonal antibody that preferentially binds to the non-peptide-bound free forms of Pyd & Dpd. We have incorporated the antibody conjugated to alkaline phosphatase in a competitive EIA by using Pyd-coated microtiter strip wells. After a 3-h incubation of sample and antibody-enzyme conjugate, color is developed for 1 h with p-nitrophenyl phosphate as the substrate. The intraassay (n = 52) CVs were 3.0-7.6%, and interassay (n = 8) CVs were 6.1-7.4%. Comparisons of the assay (y) with HPLC (x) and a polyclonal antibody-based EIA (x') gave regression equations of y = 0.46x + 4, r = 0.96, and y = 0.56x' + 8, r = 0.96. The EIA detected increased Pyd & Dpd concentrations in urine from postmenopausal women and patients with osteoporosis, hyperthyroidism, hyperparathyroidism, and Paget disease of bone. EIA concentrations also reflected the reduction in Pyd&Dpd excretion resulting from estrogen replacement in surgically menopausal women. Measurement of pyridinium cross-links with this simple EIA appears to provide an accurate index of the rate of resorption and may be useful for metabolic bone disease assessment and monitoring the effects of antiresorptive therapy.
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Affiliation(s)
- B Gomez
- Metra Biosystems, Inc., Mountain View, CA 94043, USA
| | - S Ardakani
- Metra Biosystems, Inc., Mountain View, CA 94043, USA
| | - B J Evans
- Metra Biosystems, Inc., Mountain View, CA 94043, USA
| | - L D Merrell
- Metra Biosystems, Inc., Mountain View, CA 94043, USA
| | - D K Jenkins
- Metra Biosystems, Inc., Mountain View, CA 94043, USA
| | - V T Kung
- Metra Biosystems, Inc., Mountain View, CA 94043, USA
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Gomez B, Ardakani S, Evans BJ, Merrell LD, Jenkins DK, Kung VT. Monoclonal antibody assay for free urinary pyridinium cross-links. Clin Chem 1996; 42:1168-75. [PMID: 8697572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The pyridinium cross-links of collagen, pyridinoline (Pyd) and deoxypyridinoline (Dpd), provide structural integrity and rigidity to collagen fibrils in bone. During bone degradation (resorption), the cross-links are released into the circulation and eventually excreted in urine. Pyridinium cross-link measurements in urine have been shown to be sensitive and specific indicators of resorption by both established HPLC and newer enzyme immunoassay (EIA) techniques. We have developed a monoclonal antibody that preferentially binds to the non-peptide-bound free forms of Pyd & Dpd. We have incorporated the antibody conjugated to alkaline phosphatase in a competitive EIA by using Pyd-coated microtiter strip wells. After a 3-h incubation of sample and antibody-enzyme conjugate, color is developed for 1 h with p-nitrophenyl phosphate as the substrate. The intraassay (n = 52) CVs were 3.0-7.6%, and interassay (n = 8) CVs were 6.1-7.4%. Comparisons of the assay (y) with HPLC (x) and a polyclonal antibody-based EIA (x') gave regression equations of y = 0.46x + 4, r = 0.96, and y = 0.56x' + 8, r = 0.96. The EIA detected increased Pyd & Dpd concentrations in urine from postmenopausal women and patients with osteoporosis, hyperthyroidism, hyperparathyroidism, and Paget disease of bone. EIA concentrations also reflected the reduction in Pyd&Dpd excretion resulting from estrogen replacement in surgically menopausal women. Measurement of pyridinium cross-links with this simple EIA appears to provide an accurate index of the rate of resorption and may be useful for metabolic bone disease assessment and monitoring the effects of antiresorptive therapy.
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Affiliation(s)
- B Gomez
- Metra Biosystems, Inc., Mountain View, CA 94043, USA
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Lively L, Hugh J, Gomez B, Desai A. Are you in violation? Adm Radiol J 1996; 15:44. [PMID: 10159375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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Lively L, Hugh J, Gomez B, Desai A. Technology assessment & policy determination. Adm Radiol J 1996; 15:50-1. [PMID: 10158657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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Lively L, Hugh J, Desai A, Gomez B. Metastron (strontium-89 chloride) injections reimbursement issues. Adm Radiol J 1996; 15:44-5. [PMID: 10156170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Affiliation(s)
- L Lively
- American Medical Accounting and Consulting, Inc., Marietta, GA, USA
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Lively L, Hugh JE, Desai A, Gomez B. Are we waiting for Godot? Adm Radiol J 1996; 15:40-1. [PMID: 10155862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Affiliation(s)
- L Lively
- American Medical Accounting & Consulting, Inc., USA
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Fernandez N, Monge L, Garcia-Villalon AL, Garcia JL, Gomez B, Dieguez G. Endothelin-1-induced in vitro cerebral venoconstriction is mediated by endothelin ETA receptors. Eur J Pharmacol 1995; 294:483-90. [PMID: 8750709 DOI: 10.1016/0014-2999(95)00577-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The in vitro effects of endothelin-1 on cerebral veins were studied using cylindrical segments, 5 mm long, from dog pial veins. Isometric responses to endothelin-1 (10(-12)-10(-7) M) and to the endothelin ET(B) receptor agonist, IRL 1620 (Suc-[Glu9,Ala11,15]endothelin-1-(8-21), 10(-12) -10(-7) M), were recorded in veins under control conditions and pretreated with the endothelin ET(A) receptor antagonist, BQ-123 (cyclo-(D-Asp-Pro-D-Val-Leu-D-Trp), 10(-8) -10(-5) M), and the endothelin ETB receptor antagonist, BQ-788 (N-[N-[N-[(2,6-dimethyl-1-piperidinyl)carbonyl]-4-methyl-L-leucyl]-1-(me thoxycarbonyl)-D-tryptophyl]-D-norleucine monosodium, 10(-6) and 10(-5) M). The response to endothelin-1 was also recorded in veins pretreated with the nitric oxide synthesis inhibitor, N(G)-nitro-L-arginine methyl ester (L-NAME, 10(-4) M), or the cyclooxygenase inhibitor, meclofenamate (10(-5) M), and in veins without endothelium or placed in medium without Ca2+ but with EDTA (0.1 mM). In control veins, endothelin-1 produced a concentration-dependent contraction (EC50 = 2.0 x 10(-10) M; maximal contraction = 113 +/- 6 mg) and IRL 1620 induced no effects or a small contraction only with high concentrations (10(-8) - 10(-6) M) (EC50 = 1.5 x 10 (-8) M; maximal contraction = 9 +/- 3 mg). BQ-123 shifted the response to endothelin-1 to the right in a parallel, concentration-dependent way, whereas BQ-788, L-NAME or meclofenamate did not modify the response to endothelin-1. Compared with the control, veins in a medium without Ca2+ had similar EC50 values, but a lower maximal contraction induced by endothelin-1 (57 +/- 10 mg, P < 0.05), and veins without endothelium exhibited similar EC50 values. Thus, endothelin-1 produces marked cerebral venoconstriction that could be mainly mediated by activation of endothelin ETA receptors, may be dependent on extracellular Ca2+, and may be independent of endothelium, nitric oxide and prostanoids.
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Affiliation(s)
- N Fernandez
- Departamento de Fisiologia, Facultad de Medicina, Universidad Autonoma, Madrid, Spain
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