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Santos Portela AM, Radu DM, Onorati I, Peretti M, Freynet O, Uzunhan Y, Jerbi S, Martinod E. [Interventionnal bronchoscopy for the treatment of tracheobronchomalacia]. Rev Mal Respir 2023; 40:700-715. [PMID: 37714754 DOI: 10.1016/j.rmr.2023.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 07/18/2023] [Indexed: 09/17/2023]
Abstract
Tracheobronchomalacia is usually characterized by more than 50% expiratory narrowing in diameter of the trachea and the bronchi. The expiratory collapse includes two entities: (1) the TBM related to the weakness of the cartilaginous rings, and (2) the Excessive Dynamic Airway Collapse (EDAC) due to the excessive bulging of the posterior membrane. Patients have nonspecific respiratory symptoms like dyspnea and cough. Diagnosis is confirmed by dynamic tests: flexible bronchoscopy and/or computed tomographic scan of the chest. There are different forms of tracheobronchomalacia in adults: primary (genetic, idiopathic) or secondary to trauma, tracheotomy, intubation, surgery, transplantation, emphysema, infection, inflammation, chronic bronchitis, extrinsic compression; or undiagnosed in childhood vascular rings. Some management algorithms have been proposed, but no specific recommendation was established. Only symptomatic patients should be treated. Medical treatments and noninvasive positive pressure ventilation should be the first line therapy, after evaluation of various quality measures (functional status, performance status, dyspnea and quality of life scores). If symptoms persist, therapeutic bronchoscopy permits: (1) patient's selection by stent trial to determine whether patient benefit for surgical airway stabilization; (2) malacic airways stenting in patients who are not surgical candidates, improving QOL despite a high complication rate; (3) the management of stent-related complication (obstruction, plugging, migration granuloma); (4) alternative therapeutics like thermo-ablative solution. Lasty, the development of new types of stents would reduce the complication rates. These different options remained discussed.
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Affiliation(s)
- A M Santos Portela
- Département de chirurgie thoracique et vasculaire, faculté de médecine SMBH, Assistance publique-Hôpitaux de Paris, hôpitaux universitaires Paris Seine-Saint-Denis, hôpital Avicenne, université Sorbonne Paris Nord, Bobigny, France
| | - D M Radu
- Département de chirurgie thoracique et vasculaire, faculté de médecine SMBH, Assistance publique-Hôpitaux de Paris, hôpitaux universitaires Paris Seine-Saint-Denis, hôpital Avicenne, université Sorbonne Paris Nord, Bobigny, France
| | - I Onorati
- Département de chirurgie thoracique et vasculaire, faculté de médecine SMBH, Assistance publique-Hôpitaux de Paris, hôpitaux universitaires Paris Seine-Saint-Denis, hôpital Avicenne, université Sorbonne Paris Nord, Bobigny, France
| | - M Peretti
- Département de chirurgie thoracique et vasculaire, faculté de médecine SMBH, Assistance publique-Hôpitaux de Paris, hôpitaux universitaires Paris Seine-Saint-Denis, hôpital Avicenne, université Sorbonne Paris Nord, Bobigny, France
| | - O Freynet
- Département de pneumologie, faculté de Médecine SMBH, Assistance publique-Hôpitaux de Paris, hôpitaux universitaires Paris Seine-Saint-Denis, hôpital Avicenne, université Sorbonne Paris Nord, Bobigny, France
| | - Y Uzunhan
- Département de pneumologie, faculté de Médecine SMBH, Assistance publique-Hôpitaux de Paris, hôpitaux universitaires Paris Seine-Saint-Denis, hôpital Avicenne, université Sorbonne Paris Nord, Bobigny, France
| | - S Jerbi
- Département d'anesthésie, faculté de médecine SMBH, Assistance publique-Hôpitaux de Paris, hôpitaux universitaires Paris Seine-Saint-Denis, hôpital Avicenne, université Sorbonne Paris Nord, Bobigny, France
| | - E Martinod
- Département de chirurgie thoracique et vasculaire, faculté de médecine SMBH, Assistance publique-Hôpitaux de Paris, hôpitaux universitaires Paris Seine-Saint-Denis, hôpital Avicenne, université Sorbonne Paris Nord, Bobigny, France.
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2
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Fowler C, Rainey-Smith SR, Bird S, Bomke J, Bourgeat P, Brown BM, Burnham SC, Bush AI, Chadunow C, Collins S, Doecke J, Doré V, Ellis KA, Evered L, Fazlollahi A, Fripp J, Gardener SL, Gibson S, Grenfell R, Harrison E, Head R, Jin L, Kamer A, Lamb F, Lautenschlager NT, Laws SM, Li QX, Lim L, Lim YY, Louey A, Macaulay SL, Mackintosh L, Martins RN, Maruff P, Masters CL, McBride S, Milicic L, Peretti M, Pertile K, Porter T, Radler M, Rembach A, Robertson J, Rodrigues M, Rowe CC, Rumble R, Salvado O, Savage G, Silbert B, Soh M, Sohrabi HR, Taddei K, Taddei T, Thai C, Trounson B, Tyrrell R, Vacher M, Varghese S, Villemagne VL, Weinborn M, Woodward M, Xia Y, Ames D. Fifteen Years of the Australian Imaging, Biomarkers and Lifestyle (AIBL) Study: Progress and Observations from 2,359 Older Adults Spanning the Spectrum from Cognitive Normality to Alzheimer's Disease. J Alzheimers Dis Rep 2021; 5:443-468. [PMID: 34368630 PMCID: PMC8293663 DOI: 10.3233/adr-210005] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Background: The Australian Imaging, Biomarkers and Lifestyle (AIBL) Study commenced in 2006 as a prospective study of 1,112 individuals (768 cognitively normal (CN), 133 with mild cognitive impairment (MCI), and 211 with Alzheimer’s disease dementia (AD)) as an ‘Inception cohort’ who underwent detailed ssessments every 18 months. Over the past decade, an additional 1247 subjects have been added as an ‘Enrichment cohort’ (as of 10 April 2019). Objective: Here we provide an overview of these Inception and Enrichment cohorts of more than 8,500 person-years of investigation. Methods: Participants underwent reassessment every 18 months including comprehensive cognitive testing, neuroimaging (magnetic resonance imaging, MRI; positron emission tomography, PET), biofluid biomarkers and lifestyle evaluations. Results: AIBL has made major contributions to the understanding of the natural history of AD, with cognitive and biological definitions of its three major stages: preclinical, prodromal and clinical. Early deployment of Aβ-amyloid and tau molecular PET imaging and the development of more sensitive and specific blood tests have facilitated the assessment of genetic and environmental factors which affect age at onset and rates of progression. Conclusion: This fifteen-year study provides a large database of highly characterized individuals with longitudinal cognitive, imaging and lifestyle data and biofluid collections, to aid in the development of interventions to delay onset, prevent or treat AD. Harmonization with similar large longitudinal cohort studies is underway to further these aims.
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Affiliation(s)
- Christopher Fowler
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | - Stephanie R Rainey-Smith
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Australian Alzheimer's Research Foundation (Ralph and Patricia Sarich Neuroscience Research Institute), Nedlands, WA, Australia.,Centre for Healthy Ageing, Health Futures Institute, Murdoch University, Murdoch, WA, Australia.,School of Psychological Science, University of Western Australia, Crawley, WA, Australia
| | - Sabine Bird
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Australian Alzheimer's Research Foundation (Ralph and Patricia Sarich Neuroscience Research Institute), Nedlands, WA, Australia
| | - Julia Bomke
- Australian E-Health Research Centre, CSIRO Health & Biosecurity, Herston, QLD, Australia
| | - Pierrick Bourgeat
- Australian E-Health Research Centre, CSIRO Health & Biosecurity, Herston, QLD, Australia
| | - Belinda M Brown
- Australian Alzheimer's Research Foundation (Ralph and Patricia Sarich Neuroscience Research Institute), Nedlands, WA, Australia.,Centre for Healthy Ageing, Health Futures Institute, Murdoch University, Murdoch, WA, Australia
| | - Samantha C Burnham
- Australian E-Health Research Centre, CSIRO Health & Biosecurity, Herston, QLD, Australia
| | - Ashley I Bush
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | - Carolyn Chadunow
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | - Steven Collins
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | - James Doecke
- Australian E-Health Research Centre, CSIRO Health & Biosecurity, Herston, QLD, Australia.,Cooperative Research Council for Mental Health, Melbourne, VIC, Australia
| | - Vincent Doré
- Australian E-Health Research Centre, CSIRO Health & Biosecurity, Herston, QLD, Australia.,Department of Molecular Imaging and Therapy, Austin Health, Heidelberg, VIC, Australia
| | - Kathryn A Ellis
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia.,University of Melbourne Academic Unit for Psychiatry of Old Age, Parkville, VIC, Australia.,Melbourne School of Psychological Sciences, Melbourne, VIC, Australia
| | - Lis Evered
- Department of Anaesthesia and Acute Pain Medicine, St Vincent's Hospital Melbourne, Victoria Parade, Fitzroy, VIC, Australia
| | - Amir Fazlollahi
- Australian E-Health Research Centre, CSIRO Health & Biosecurity, Herston, QLD, Australia
| | - Jurgen Fripp
- Australian E-Health Research Centre, CSIRO Health & Biosecurity, Herston, QLD, Australia
| | - Samantha L Gardener
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Australian Alzheimer's Research Foundation (Ralph and Patricia Sarich Neuroscience Research Institute), Nedlands, WA, Australia
| | - Simon Gibson
- Australian E-Health Research Centre, CSIRO Health & Biosecurity, Herston, QLD, Australia
| | - Robert Grenfell
- Australian E-Health Research Centre, CSIRO Health & Biosecurity, Herston, QLD, Australia
| | - Elise Harrison
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | - Richard Head
- Australian E-Health Research Centre, CSIRO Health & Biosecurity, Herston, QLD, Australia
| | - Liang Jin
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | - Adrian Kamer
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | - Fiona Lamb
- Department of Molecular Imaging and Therapy, Austin Health, Heidelberg, VIC, Australia
| | | | - Simon M Laws
- Collaborative Genomics and Translation Group, Centre for Precision Health, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Bentley, WA, Australia
| | - Qiao-Xin Li
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | - Lucy Lim
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Australian Alzheimer's Research Foundation (Ralph and Patricia Sarich Neuroscience Research Institute), Nedlands, WA, Australia
| | - Yen Ying Lim
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia.,Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, VIC, Australia
| | - Andrea Louey
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | - S Lance Macaulay
- Australian E-Health Research Centre, CSIRO Health & Biosecurity, Herston, QLD, Australia
| | - Lucy Mackintosh
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | - Ralph N Martins
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Australian Alzheimer's Research Foundation (Ralph and Patricia Sarich Neuroscience Research Institute), Nedlands, WA, Australia.,Department of Biomedical Sciences, Macquarie University, North Ryde, NSW, Australia
| | | | - Colin L Masters
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | - Simon McBride
- Australian E-Health Research Centre, CSIRO Health & Biosecurity, Herston, QLD, Australia
| | - Lidija Milicic
- Collaborative Genomics and Translation Group, Centre for Precision Health, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Madeline Peretti
- Collaborative Genomics and Translation Group, Centre for Precision Health, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Kelly Pertile
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | - Tenielle Porter
- Collaborative Genomics and Translation Group, Centre for Precision Health, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Bentley, WA, Australia
| | - Morgan Radler
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | - Alan Rembach
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | - Joanne Robertson
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | - Mark Rodrigues
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Australian Alzheimer's Research Foundation (Ralph and Patricia Sarich Neuroscience Research Institute), Nedlands, WA, Australia
| | - Christopher C Rowe
- Department of Molecular Imaging and Therapy, Austin Health, Heidelberg, VIC, Australia.,Australian Alzheimer's Research Foundation (Ralph and Patricia Sarich Neuroscience Research Institute), Nedlands, WA, Australia
| | - Rebecca Rumble
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | | | - Greg Savage
- Department of Psychology, Macquarie University, Sydney, NSW, Australia
| | - Brendan Silbert
- Department of Anaesthesia and Acute Pain Medicine, St Vincent's Hospital Melbourne, Victoria Parade, Fitzroy, VIC, Australia
| | - Magdalene Soh
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Australian Alzheimer's Research Foundation (Ralph and Patricia Sarich Neuroscience Research Institute), Nedlands, WA, Australia
| | - Hamid R Sohrabi
- Australian Alzheimer's Research Foundation (Ralph and Patricia Sarich Neuroscience Research Institute), Nedlands, WA, Australia.,Centre for Healthy Ageing, Health Futures Institute, Murdoch University, Murdoch, WA, Australia.,Department of Biomedical Sciences, Macquarie University, North Ryde, NSW, Australia
| | - Kevin Taddei
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Australian Alzheimer's Research Foundation (Ralph and Patricia Sarich Neuroscience Research Institute), Nedlands, WA, Australia
| | - Tania Taddei
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Australian Alzheimer's Research Foundation (Ralph and Patricia Sarich Neuroscience Research Institute), Nedlands, WA, Australia
| | - Christine Thai
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | - Brett Trounson
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | - Regan Tyrrell
- Department of Molecular Imaging and Therapy, Austin Health, Heidelberg, VIC, Australia
| | - Michael Vacher
- Australian E-Health Research Centre, CSIRO Health & Biosecurity, Herston, QLD, Australia
| | - Shiji Varghese
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia
| | - Victor L Villemagne
- Department of Molecular Imaging and Therapy, Austin Health, Heidelberg, VIC, Australia.,Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
| | - Michael Weinborn
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Australian Alzheimer's Research Foundation (Ralph and Patricia Sarich Neuroscience Research Institute), Nedlands, WA, Australia.,School of Psychological Science, University of Western Australia, Crawley, WA, Australia
| | - Michael Woodward
- Department of Geriatric Medicine Austin Hospital, Heidelberg, VIC, Australia
| | - Ying Xia
- Australian E-Health Research Centre, CSIRO Health & Biosecurity, Herston, QLD, Australia
| | - David Ames
- The Florey Institute, The University of Melbourne, Parkville, VIC, Australia.,University of Melbourne Academic Unit for Psychiatry of Old Age, Parkville, VIC, Australia.,National Ageing Research Institute (NARI), Parkville, VIC, Australia
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3
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Fernandez S, Burnham SC, Milicic L, Savage G, Maruff P, Peretti M, Sohrabi HR, Lim YY, Weinborn M, Ames D, Masters CL, Martins RN, Rainey-Smith S, Rowe CC, Salvado O, Groth D, Verdile G, Villemagne VL, Porter T, Laws SM. SPON1 Is Associated with Amyloid-β and APOE ε4-Related Cognitive Decline in Cognitively Normal Adults. J Alzheimers Dis Rep 2021; 5:111-120. [PMID: 33782664 PMCID: PMC7990462 DOI: 10.3233/adr-200246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Abstract.
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Affiliation(s)
- Shane Fernandez
- Australian Alzheimer's Research Foundation, Nedlands, Western Australia.,Collaborative Genomics and Translation Group, Center for Precision Health, School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
| | - Samantha C Burnham
- Collaborative Genomics and Translation Group, Center for Precision Health, School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia.,CSIRO Health and Biosecurity, Parkville, Victoria, Australia
| | - Lidija Milicic
- Collaborative Genomics and Translation Group, Center for Precision Health, School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
| | - Greg Savage
- ARC Centre of Excellence in Cognition and its Disorders, Department of Psychology, Macquarie University, North Ryde, NSW, Australia
| | - Paul Maruff
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, Australia.,CogState Ltd., Melbourne, Victoria, Australia
| | - Madeline Peretti
- Collaborative Genomics and Translation Group, Center for Precision Health, School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
| | - Hamid R Sohrabi
- Australian Alzheimer's Research Foundation, Nedlands, Western Australia.,Centre for Healthy Ageing, Murdoch University, Murdoch, Western Australia, Australia.,Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, New South Wales, Australia.,Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
| | - Yen Ying Lim
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Clayton, Victoria, Australia
| | - Michael Weinborn
- Australian Alzheimer's Research Foundation, Nedlands, Western Australia.,Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia.,School of Psychological Science, University of Western Australia, Crawley, Western Australia, Australia
| | - David Ames
- Academic Unit for Psychiatry of Old Age, St. Vincent's Health, The University of Melbourne, Kew, Victoria, Australia.,National Ageing Research Institute, Parkville, Victoria, Australia
| | - Colin L Masters
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Ralph N Martins
- Australian Alzheimer's Research Foundation, Nedlands, Western Australia.,Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, New South Wales, Australia.,Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
| | - Stephanie Rainey-Smith
- Australian Alzheimer's Research Foundation, Nedlands, Western Australia.,Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
| | - Christopher C Rowe
- Department of Nuclear Medicine and Centre for PET, Austin Health, Heidelberg, Victoria, Australia.,Department of Medicine, Austin Health, The University of Melbourne, Heidelberg, Victoria, Australia
| | - Olivier Salvado
- CSIRO Health and Biosecurity/Australian e-Health Research Centre, Herston, Queensland, Australia
| | - David Groth
- School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Bentley, Western Australia, Australia
| | - Giuseppe Verdile
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia.,School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Bentley, Western Australia, Australia
| | - Victor L Villemagne
- Collaborative Genomics and Translation Group, Center for Precision Health, School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia.,Department of Nuclear Medicine and Centre for PET, Austin Health, Heidelberg, Victoria, Australia
| | - Tenielle Porter
- Collaborative Genomics and Translation Group, Center for Precision Health, School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia.,School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Bentley, Western Australia, Australia
| | - Simon M Laws
- Collaborative Genomics and Translation Group, Center for Precision Health, School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia.,School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Bentley, Western Australia, Australia
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4
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Vacher M, Porter T, Milicic L, Peretti M, Dore V, Villemagne VLL, Laws SM, Doecke JD. Identification of genetic markers linked to accelerated brain volume changes in Aβ‐positive population. Alzheimers Dement 2020. [DOI: 10.1002/alz.041386] [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: 11/09/2022]
Affiliation(s)
- Michael Vacher
- Commonwealth Scientific and Industrial Research Organisation Perth Australia
| | | | | | - Madeline Peretti
- Cooperative Research Centre for Mental Health Melbourne Australia
| | - Vincent Dore
- The Australian e‐Health Research Centre, CSIRO Melbourne Australia
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Brown BM, Milicic L, Porter T, Rainey-Smith SR, Peretti M, Vacher M, Sohrabi HR, Martins RN, Peiffer JJ, Laws SM. Alzheimer’s Disease-related Gene Expression Is Reduced Following Six Months Of High-intensity Exercise. Med Sci Sports Exerc 2020. [DOI: 10.1249/01.mss.0000686624.46435.4c] [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: 11/21/2022]
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6
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Porter T, Burnham SC, Milicic L, Savage G, Maruff P, Sohrabi HR, Peretti M, Lim YY, Weinborn M, Ames D, Masters CL, Martins RN, Rainey-Smith S, Rowe CC, Salvado O, Groth D, Verdile G, Villemagne VL, Laws SM. COMT val158met is not associated with Aβ-amyloid and APOE ε4 related cognitive decline in cognitively normal older adults. IBRO Rep 2019; 6:147-152. [PMID: 31080907 PMCID: PMC6506436 DOI: 10.1016/j.ibror.2019.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 05/01/2019] [Indexed: 11/26/2022] Open
Abstract
The non-synonymous single nucleotide polymorphism (SNP), Val158Met within the Catechol-O-methyltransferase (COMT) gene has been associated with altered levels of cognition and memory performance in cognitively normal adults. This study aimed to investigate the independent and interactional effects of COMT Val158Met on cognitive performance. In particular, it was hypothesised that COMT Val158Met would modify the effect of neocortical Aβ-amyloid (Aβ) accumulation and carriage of the apolipoprotein E (APOE) ε4 allele on cognition in preclinical Alzheimer's disease (AD). In 598 cognitively normal older adults with known neocortical Aβ levels, linear mixed modelling revealed no significant independent or interactional associations between COMT Val158Met and cognitive decline. These findings do not support previous associations between COMT Val158Met and cognitive performance and suggest this variant does not influence Aβ-amyloid or APOE ε4 driven cognitive decline in a well characterised cohort of cognitively normal older adults.
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Affiliation(s)
- Tenielle Porter
- Collaborative Genomics Group, Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia.,Cooperative Research Centre for Mental Health, Australia
| | - Samantha C Burnham
- CSIRO Health and Biosecurity, Parkville 3052, Victoria, Australia.,Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia
| | - Lidija Milicic
- Collaborative Genomics Group, Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia.,Cooperative Research Centre for Mental Health, Australia
| | - Greg Savage
- ARC Centre of Excellence in Cognition and its Disorders, Department of Psychology, Macquarie University, North Ryde 2113, NSW, Australia
| | - Paul Maruff
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville 3052, Victoria, Australia.,CogState Ltd., Melbourne 3000, Victoria, Australia
| | - Hamid R Sohrabi
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia
| | - Madeline Peretti
- Collaborative Genomics Group, Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia.,Cooperative Research Centre for Mental Health, Australia
| | - Yen Ying Lim
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville 3052, Victoria, Australia
| | - Michael Weinborn
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia.,School of Psychology, University of Western Australia, Crawley 6009, Western Australia, Australia
| | - David Ames
- Academic Unit for Psychiatry of Old Age, St. Vincent's Health, The University of Melbourne, Kew 3101, Victoria, Australia.,National Ageing Research Institute, Parkville 3052, Victoria, Australia
| | - Colin L Masters
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville 3052, Victoria, Australia
| | - Ralph N Martins
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia
| | - Stephanie Rainey-Smith
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia
| | - Christopher C Rowe
- Department of Nuclear Medicine and Centre for PET, Austin Health, Heidelberg 3084, Victoria, Australia.,Department of Medicine, Austin Health, The University of Melbourne, Heidelberg 3084, Victoria, Australia
| | - Olivier Salvado
- CSIRO Health and Biosecurity/Australian e-Health Research Centre, Herston 4029, Queensland, Australia
| | - David Groth
- School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Western Australia, Australia
| | - Giuseppe Verdile
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia.,School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Western Australia, Australia
| | - Victor L Villemagne
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville 3052, Victoria, Australia.,Department of Nuclear Medicine and Centre for PET, Austin Health, Heidelberg 3084, Victoria, Australia.,Department of Medicine, Austin Health, The University of Melbourne, Heidelberg 3084, Victoria, Australia
| | - Simon M Laws
- Collaborative Genomics Group, Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup 6027, Western Australia, Australia.,Cooperative Research Centre for Mental Health, Australia.,School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Bentley 6102, Western Australia, Australia
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7
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Porter T, Burnham SC, Savage G, Lim YY, Maruff P, Milicic L, Peretti M, Ames D, Masters CL, Martins RN, Rainey-Smith S, Rowe CC, Salvado O, Taddei K, Groth D, Verdile G, Villemagne VL, Laws SM. A Polygenic Risk Score Derived From Episodic Memory Weighted Genetic Variants Is Associated With Cognitive Decline in Preclinical Alzheimer's Disease. Front Aging Neurosci 2018; 10:423. [PMID: 30620773 PMCID: PMC6305908 DOI: 10.3389/fnagi.2018.00423] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 12/06/2018] [Indexed: 01/29/2023] Open
Abstract
Studies of Alzheimer’s disease risk-weighted polygenic risk scores (PRSs) for cognitive performance have reported inconsistent associations. This inconsistency is particularly evident when PRSs are assessed independent of APOE genotype. As such, the development and assessment of phenotype-specific weightings to derive PRSs for cognitive decline in preclinical AD is warranted. To this end a episodic memory-weighted PRS (emPRS) was derived and assessed against decline in cognitive performance in 226 healthy cognitively normal older adults with high brain Aβ-amyloid burden participants from the Australian Imaging, Biomarkers and Lifestyle (AIBL) study. The effect size for decline in a verbal episodic memory was determined individually for 27 genetic variants in a reference sample (n = 151). These were then summed to generate a emPRS either including APOE (emPRSc¯APOE) or excluding APOE (emPRSs¯APOE). Resultant emPRS were then evaluated, in a test sample (n = 75), against decline in global cognition, verbal episodic memory and a pre-Alzheimer’s cognitive composite (AIBL-PACC) over 7.5 years. The mean (SD) age of the 226 participants was 72.2 (6.6) years and 116 (51.3%) were female. Reference and test samples did not differ significantly demographically. Whilst no association of emPRSs were observed with baseline cognition, the emPRSc¯APOE was associated with longitudinal global cognition (-0.237, P = 0.0002), verbal episodic memory (-0.259, P = 0.00003) and the AIBL-PACC (-0.381, P = 0.02). The emPRSs¯APOE was also associated with global cognition (-0.169, P = 0.021) and verbal episodic memory (-0.208, P = 0.004). Stratification by APOE ε4 revealed that the association between the emPRS and verbal episodic memory was limited to carriage of no ε4 or one ε4 allele. This was also observed for global cognition. The emPRS and rates of decline in AIBL-PACC were associated in those carrying one ε4 allele. Overall, the described novel emPRS has utility for the prediction of decline in cognition in preclinical AD. This study provides evidence to support the further use and evaluation of phenotype weightings in PRS development.
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Affiliation(s)
- Tenielle Porter
- Collaborative Genomics Group, Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Cooperative Research Centre (CRC) for Mental Health, Carlton, VIC, Australia
| | - Samantha C Burnham
- CSIRO Health and Biosecurity, Parkville, VIC, Australia.,Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Greg Savage
- ARC Centre of Excellence in Cognition and its Disorders, Department of Psychology, Macquarie University, North Ryde, NSW, Australia
| | - Yen Ying Lim
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Paul Maruff
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia.,CogState Ltd., Melbourne, VIC, Australia
| | - Lidija Milicic
- Collaborative Genomics Group, Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Cooperative Research Centre (CRC) for Mental Health, Carlton, VIC, Australia
| | - Madeline Peretti
- Collaborative Genomics Group, Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Cooperative Research Centre (CRC) for Mental Health, Carlton, VIC, Australia
| | - David Ames
- Academic Unit for Psychiatry of Old Age, St. Vincent's Health, The University of Melbourne, Kew, VIC, Australia.,National Ageing Research Institute, Parkville, VIC, Australia
| | - Colin L Masters
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Ralph N Martins
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Stephanie Rainey-Smith
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Christopher C Rowe
- Department of Nuclear Medicine and Centre for PET, Austin Health, Heidelberg, VIC, Australia
| | | | - Kevin Taddei
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - David Groth
- School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Bentley, WA, Australia
| | - Giuseppe Verdile
- Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Bentley, WA, Australia
| | - Victor L Villemagne
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia.,Department of Nuclear Medicine and Centre for PET, Austin Health, Heidelberg, VIC, Australia
| | - Simon M Laws
- Collaborative Genomics Group, Centre of Excellence for Alzheimer's Disease Research and Care, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Cooperative Research Centre (CRC) for Mental Health, Carlton, VIC, Australia.,School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Bentley, WA, Australia
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8
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Brettell I, Vacher M, Porter T, Villemagne VL, Milicic L, Peretti M, Rainey-Smith SR, Fowler C, Laws SM, Doecke JD. P4‐040: BETA‐AMYLOID SPECIFIC GENOMIC NETWORKS DEFINE CIS AND TRANS RELATIONSHIPS IN PARTICIPANTS WITH ALZHEIMER'S DISEASE. Alzheimers Dement 2018. [DOI: 10.1016/j.jalz.2018.06.2442] [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: 10/28/2022]
Affiliation(s)
- Ian Brettell
- Commonwealth and Industrial Research OrganisationBrisbaneAustralia
| | - Michael Vacher
- Commonwealth Scientific and Industrial Research OrganisationPerthAustralia
| | - Tenielle Porter
- Cooperative Research Centre for Mental HealthMelbourneAustralia
| | | | | | | | | | - Christopher Fowler
- The Florey Institute of Neuroscience and Mental HealthMelbourneAustralia
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9
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Cetin-Sahin D, Lungu O, Peretti M, Gore G, Gore B, Voyer P, Wilchesky M. EFFECTIVENESS OF INTERVENTIONS TO REDUCE ACUTE CARE TRANSFERS FROM NURSING HOMES: A META-ANALYSIS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4449] [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)
- D. Cetin-Sahin
- Donald Berman Maimonides Centre for Research in Aging, Montreal, Quebec, Canada,
| | - O. Lungu
- Université de Montréal, Montreal, Quebec, Canada,
- Donald Berman Maimonides Centre for Research in Aging, Montreal, Quebec, Canada,
| | - M. Peretti
- McGill University, Department of Family Medicine,
Montreal, Quebec, Canada,
- Donald Berman Maimonides Centre for Research in Aging, Montreal, Quebec, Canada,
| | - G. Gore
- McGill University, Montreal, Quebec, Canada
| | - B. Gore
- Donald Berman Maimonides Centre for Research in Aging, Montreal, Quebec, Canada,
| | - P. Voyer
- Université Laval, Québec, Quebec, Canada,
| | - M. Wilchesky
- McGill University, Department of Family Medicine,
Montreal, Quebec, Canada,
- Donald Berman Maimonides Centre for Research in Aging, Montreal, Quebec, Canada,
- Lady Davis Institute for Medical Research, Montreal, Quebec, Canada,
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10
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Mariotto A, Peretti M, Scirè G, Mantovani A, Zambaldo S, Pani E, Camoglio FS, Giacomello L. Trichobezoars in children: therapeutic complications. Pediatr Med Chir 2014; 36:101. [PMID: 25669892 DOI: 10.4081/pmc.2014.101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 02/09/2015] [Indexed: 11/23/2022] Open
Abstract
Trichobezoars are concretions formed by the accumulation of hair or fibers in the gastrointestinal tract, usually associated with underlying psychiatric disorders in females between 13 and 20 years old. Endoscopy, the gold standard for diagnosis, brings some additional advantages: sample taking, size reducing and, rarely, mass removal. This study shows that endoscopy can cause severe complications resulting in a surgical emergency.
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Affiliation(s)
- A Mariotto
- Surgical Pediatrics Unit, Department of Surgery, University of Verona.
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11
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Scirè G, Mariotto A, Peretti M, Buzzi E, Zani B, Camoglio F, Giacomello L. Laparoscopic versus open appendectomy in the management of acute appendicitis in children: a multicenter retrospective study. Minerva Pediatr 2014; 66:281-285. [PMID: 25198564] [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: 06/03/2023]
Abstract
AIM Acute appendicitis is one of the most common indications for emergency surgery in children. Open appendectomy (OA) has been the gold standard treatment for over 100 years. In the last three decades, the introduction of minimally invasive techniques, such as laparoscopic appendectomy (LA) and transumbilical laparoscopically assisted appendectomy (TULAA), has changed the approach to the disease. However, there is still no agreement with benefits of these new therapeutic options, especially in children. The aim of this retrospective study is comparing the outcomes of OA, LA and TULAA in the paediatric patient. METHODS Children suffering from acute appendicitis were treated with LA or TULAA in the Department of Paediatric Surgery and with OA in the Department of General Surgery. Data were abstracted from database of both centers' archives. Operator, operating time, length of hospitalization (LOH), intra- and postoperative complications and histological finding were analyzed. RESULTS We recruited 196 patients: 46 treated with LA, 62 with TULAA and 88 with OA. Operative time was significantly shorter in OA. The three techniques had the same incidence of intraoperative and postoperative complications. The incidence of wound infection was higher with the TULAA approach. LOH was significantly shorter in the TULAA group. There was no correlation between LOH and histological finding. CONCLUSION We demonstrated that LA, TULAA and OA are similar in most respects and are equally safe modalities in paediatric patients. Further randomized controlled studies are necessary.
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Affiliation(s)
- G Scirè
- Pediatric Surgery Unit, Department of Surgery University of Verona, Verona, Italy - >
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12
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Peretti M, Villard J, Barras E, Zufferey M, Reith W. Expression of the three human major histocompatibility complex class II isotypes exhibits a differential dependence on the transcription factor RFXAP. Mol Cell Biol 2001; 21:5699-709. [PMID: 11486010 PMCID: PMC87290 DOI: 10.1128/mcb.21.17.5699-5709.2001] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2001] [Accepted: 06/11/2001] [Indexed: 11/20/2022] Open
Abstract
Major histocompatibility complex class II (MHCII) molecules play a pivotal role in the immune system because they direct the development and activation of CD4(+) T cells. There are three human MHCII isotypes, HLA-DR, HLA-DQ, and HLA-DP. Key transcription factors controlling MHCII genes have been identified by virtue of the fact that they are mutated in a hereditary immunodeficiency resulting from a lack of MHCII expression. RFXAP-one of the factors affected in this disease-is a subunit of RFX, a DNA-binding complex that recognizes the X box present in all MHCII promoters. To facilitate identification of conserved regions in RFXAP, we isolated the mouse gene. We then delimited conserved domains required to restore endogenous MHCII expression in cell lines lacking a functional RFXAP gene. Surprisingly, we found that 80% of RFXAP is dispensable for the reactivation of DR expression. Only a short C-terminal segment of the protein is essential for this isotype. In contrast, optimal expression of DQ and DP requires a larger C-terminal segment. These results define an RFXAP domain with an MHCII isotype-specific function. Expression of the three MHCII isotypes exhibits a differential requirement for this domain. We show that this is due to a differential dependence on this domain for promoter occupation and recruitment of the coactivator CIITA in vivo.
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Affiliation(s)
- M Peretti
- Department of Genetics and Microbiology, University of Geneva Medical School, CMU, 1 rue Michel-Servet, 1211 Geneva, Switzerland
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13
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Masternak K, Muhlethaler-Mottet A, Villard J, Peretti M, Reith W. Molecular genetics of the Bare lymphocyte syndrome. Rev Immunogenet 2001; 2:267-82. [PMID: 11258423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Major Histocompatibility Complex class II (MHC-II) molecules play a pivotal role in the adaptive immune system because they direct the development, activation and homeostasis of CD4+ T helper cells. Hereditary defects leading to the absence of MHC-II expression result in a severe autosomal recessive immunodeficiency disease called the Bare Lymphocyte Syndrome (BLS), also referred to as MHC-II deficiency. The genetic lesions responsible for BLS do not lie within the MHC-II locus itself, but reside instead in genes encoding transcription factors controlling MHC-II expression. Mutations in four different MHC-II regulatory genes are known to lead to BLS. These genes encode CIITA, RFXANK, RFX5 and RFXAP. CIITA (Class II Transactivator) is a transcriptional coactivator that functions as a master control factor dictating the cell type specificity, induction and level of MHC-II expression. RFXANK, RFX5 and RFXAP are the three subunits of RFX (regulatory factor X), a DNA-binding complex that binds to a conserved cis-acting sequence, the X box, present in the promoters of all MHC-II genes. Elucidation of the molecular defects underlying BLS has led to major advances in our understanding of the mechanisms regulating expression of MHC-II genes.
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Affiliation(s)
- K Masternak
- Department of Genetics and Microbiology, University of Geneva Medical School, Switzerland
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14
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Waldburger JM, Masternak K, Muhlethaler-Mottet A, Villard J, Peretti M, Landmann S, Reith W. Lessons from the bare lymphocyte syndrome: molecular mechanisms regulating MHC class II expression. Immunol Rev 2000; 178:148-65. [PMID: 11213800 DOI: 10.1034/j.1600-065x.2000.17813.x] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.7] [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: 11/23/2022]
Abstract
Major histocompatibility complex class II (MHCII) molecules drive the development, activation and homeostasis of CD4* T-helper cells. They play a central role in key processes of the adaptive immune system, such as the generation of T-cell-mediated immune responses, the regulation of antibody production and the development and maintenance of tol erance. It is thus not surprising that the absence of MHCII expression results in a severe primary immunodeficiency disease (the bare lymphocyte syndrome (BLS)). The genetic defects responsible for BLS do not lie within the MHCII locus, but in genes encoding transcription factors required for MHCII expression. A great deal of our current knowledge about the mechanisms regulating expression of MHCII genes has been derived from the study of BLS. Four different MHCII regulatory genes have been identified. These genes encode RFXANK, RFXS, RFXAP and CIITA. The first three are subunits of RFX, a ubiquitously expressed factor that binds to the promoters of all MHCII genes. RFX binds co-operatively with other factors to form a highly stable multiprotein complex referred to as the MHCII enhanceosome. This enhanceosome serves as a landing pad for the co-activator CIITA, which is recruited via protein-protein interactions CIITA is the master control factor for MHCII expression. The highly regulated expression pattern of CIITA ultimately dictates the cell type specificity, induction and level of MHCII expression.
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Affiliation(s)
- J M Waldburger
- Department of Genetics and Microbiology, University of Geneva Medical School, Switzerland
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15
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Caretti G, Cocchiarella F, Sidoli C, Villard J, Peretti M, Reith W, Mantovani R. Dissection of functional NF-Y-RFX cooperative interactions on the MHC class II Ea promoter. J Mol Biol 2000; 302:539-52. [PMID: 10986117 DOI: 10.1006/jmbi.2000.4028] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [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: 12/24/2022]
Abstract
Transcription of major histocompatibility complex (MHC) class II genes depends upon the trimeric complexes RFX and NF-Y binding to the conserved X-Y promoter elements. We produced and purified the RFX subunits from Escherichia coli, reconstituted DNA-binding to the mouse Ea X box and dissected the interactions with NF-Y. RFX and NF-Y do not interact in solution, but make cooperative interactions in EMSA: a minimal NF-Y, composed of the evolutionary conserved domains, is sufficient and the RFXAP N-terminal half is expendable. Altering the X-Y distance abolishes cooperativity, indicating that DNA imposes severe spatial constraints. When tested on a highly positioned nucleosome, RFX binds DNA well and NF-Y does not increase its affinity further. Transfections of NF-Y subunits, but not RFX, in class II negative cells improves basal transcription and coexpression of the two activators has a synergistic effect, while modestly increasing CIITA-mediated activation. These results show that interactions between the two trimers on DNA are key to MHC class II expression.
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Affiliation(s)
- G Caretti
- Dipartimento di Genetica e Biologia dei Microrganismi, Università di Milano, Via Celoria 26, Milano, 20133, Italy
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16
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Villard J, Peretti M, Masternak K, Barras E, Caretti G, Mantovani R, Reith W. A functionally essential domain of RFX5 mediates activation of major histocompatibility complex class II promoters by promoting cooperative binding between RFX and NF-Y. Mol Cell Biol 2000; 20:3364-76. [PMID: 10779326 PMCID: PMC85629 DOI: 10.1128/mcb.20.10.3364-3376.2000] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/1999] [Accepted: 02/18/2000] [Indexed: 11/20/2022] Open
Abstract
Major histocompatibility complex class II (MHC-II) molecules occupy a pivotal position in the adaptive immune system, and correct regulation of their expression is therefore of critical importance for the control of the immune response. Several regulatory factors essential for the transcription of MHC-II genes have been identified by elucidation of the molecular defects responsible for MHC-II deficiency, a hereditary immunodeficiency disease characterized by regulatory defects abrogating MHC-II expression. Three of these factors, RFX5, RFXAP, and RFXANK, combine to form the RFX complex, a regulatory protein that binds to the X box DNA sequence present in all MHC-II promoters. In this study we have undertaken a dissection of the structure and function of RFX5, the largest subunit of the RFX complex. The results define two distinct domains serving two different essential functions. A highly conserved N-terminal region of RFX5 is required for its association with RFXANK and RFXAP, for assembly of the RFX complex in vivo and in vitro, and for binding of this complex to its X box target site in the MHC-II promoter. This N-terminal region is, however, not sufficient for activation of MHC-II expression. This requires an additional domain within the C-terminal region of RFX5. This C-terminal domain mediates cooperative binding between the RFX complex and NF-Y, a transcription factor binding to the Y box sequence of MHC-II promoters. This provides direct evidence that RFX5-mediated cooperative binding between RFX and NF-Y plays an essential role in the transcriptional activation of MHC-II genes.
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Affiliation(s)
- J Villard
- Department of Genetics and Microbiology, University of Geneva Medical School, CH-1211 Geneva 4, Switzerland.
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17
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Capodieci C, Guala A, Licardi G, Peretti M. [Hemiplegic migraine. A series of 5 patients]. Minerva Pediatr 2000; 52:153-6. [PMID: 10879007] [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: 02/16/2023]
Abstract
We describe the occurrence of five pediatric patients presenting an aura encompassing neurovegetative and unilateral neurological manifestations persisting during and after the migrainous attack are described. All investigations were normal and the symptoms completely disappeared within 24-48 hours with non specific treatment. A diagnosis of hemiplegic migraine was made. The importance is underlined for the pediatrician to consider migraine in the differential diagnosis of a child first presenting with neurological symptoms even without symptoms of migraine.
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Affiliation(s)
- C Capodieci
- Divisione di Pediatria, Ospedale Civile, Vigevano
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18
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Sanna E, Cosseddu GG, Floris G, Liguori A, Peretti M, Carbini L. Comparison of blood lead levels in three groups of Sardinian children. Anthropol Anz 1999; 57:111-21. [PMID: 10483482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
This paper reports blood lead levels in children from three Sardinian municipalities: Portoscuso, Iglesias, and Sestu. Portoscuso, chosen as the control area, is located about 2 km from one of the most important industrial complexes of the island. Iglesias was once an important zinc-lead mining centre. Sestu is a semi-urban centre located about 10 km from Cagliari (the islands's capital), and may be considered unexposed to lead pollution. Blood lead concentration was evaluated in heparinized venous blood samples by graphite furnace atomic absorption spectrophotometry. Children living in Portoscuso show a higher mean of blood lead levels (8.43 micrograms/dl) as compared to that of children of the same age living in Iglesias (6.92 micrograms/dl) and Sestu (5.71 micrograms/dl). By the Bonferroni t-tests procedure these mean differences appear to be statistically significant. The mean of PbB levels obtained in this investigation for children from Portoscuso showed a decrease of 33.62% with respect to that reported in a previous investigation carried out in 1987 (12.7 micrograms/dl).
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Affiliation(s)
- E Sanna
- Dipartimento di Biologia Sperimentale, Università degli Studi di Cagliari, Italy
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19
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Sanna E, Cosseddu G, Floris G, Liguori A, Peretti M, Carbini L. Comparison of blood lead levels in three groups of Sardinian children. anthranz 1999. [DOI: 10.1127/anthranz/57/1999/111] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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20
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Abstract
We have analyzed the promoter and the coding sequences of the two homologous histone H1(zero)-encoding genes from Xenopus laevis, here termed H1(zero)-1 and H1(zero)-2. Both genes encode proteins of 193 amino acids and differ at just 16 amino-acid residues. Putative regulatory sequences identified in the promoter region are the same and are highly conserved. However, significant differences exist in the 5' untranslated regions (UTR) of the transcribed sequences of these two genes, such as several deletions in the 5'-UTR of the H1(zero)-2 gene in comparison with the H1(zero)-1 gene 5'-UTR. The 3'-UTR is a short sequence of about 200 bp which is unexpected compared with the long 3'-UTR of mammalian H1(zero) mRNA, but it is in the same size range as in avian H5 mRNA. Thus, the main differences between these two genes are observed in sequences potentially involved in the regulation of the H1(zero) gene expression such as the 5'-UTR. The two genes are expressed during embryogenesis and in several adult tissues. We discuss these findings in terms of the evolution of histone H1(zero) genes in vertebrates and the appearance of histone H5 in avian species.
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Affiliation(s)
- M P Brocard
- Laboratoire de Biologie Moléculaire du Cycle Cellulaire-INSERM U309, Institut Albert Bonniot, Faculté de Médecine, La Tronche, France
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21
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Abstract
The comparison of the rat H1 zero gene promoter sequence with that of known H1 zero genes showed a high evolutionary conservation of regulatory elements involved in the control of the basal transcription of the gene. This finding suggests that the regulation of H1 zero gene expression is also controlled by a very conserved mechanism within vertebrates. In order to confirm this hypothesis, we destroyed three major cis-acting elements in the H1 zero gene promoter by site-directed mutagenesis and showed that these mutations affect significantly the activity of this promoter in cell lines representative of different vertebrate classes (fishes, amphibians, reptiles, birds, and mammals). We concluded that H1 zero gene activity, which is a developmentally regulated process, has been under a great selective pressure during evolution to ensure the expression of the protein at crucial periods of vertebrate development. One of these elements, the H4 box, helps to define within vertebrate H1 genes those encoding differentiation-specific subtypes. Indeed, it is only present in the proximal promoter region of H1 zero and H5 encoding genes. Regarding this feature of the vertebrate differentiation-specific H1 genes, they appear closer to the invertebrate (sea urchin) H1 genes than to those encoding vertebrate replication-dependent (RD) H1. This observation suggests that histone H1 zero and H5 are members that diverged from the main group of histone H1 before the vertebrate histone H1 and that the regulation of vertebrate RD H1 genes has probably evolved toward a coordinate regulation with that of core histone genes.
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Affiliation(s)
- M Peretti
- Laboratoire de Biologie Moléculaire du Cycle Cellulaire-INSERM U309, Institut Albert Bonniot, Faculté de Médecine, La Tronche, France
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22
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Cassisa G, Nasi M, Peretti M, Pappalardo S. X-ray evaluation of interferential femoral screw positioning in ACL reconstruction. Chir Organi Mov 1996; 81:257-61. [PMID: 9009407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
In a total of 27 patients the authors performed reconstruction of the anterior cruciate ligament using the mid third of the free patellar tendon (bone-tendon-bone), stabilized with two interferential wires, using a mini-arthrotomic half-tunnel in-out method. X-ray examination in two orthogonal views allows for an evaluation of the orientation of the femoral screw in relation to the joint plane and the diaphyseal axis, and its relationship with the bone graft, thus obtaining useful information on its anchoring. The method used is that reported by Lemos et al. (1993). The results obtained agree with those reported by the American author and substantiate the reliability of the method.
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Affiliation(s)
- G Cassisa
- Clinica Ortopedica e Traumatologica, Università degli Studi di Roma, La Sapienza
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Ferrantini M, Proietti E, Santodonato L, Gabriele L, Peretti M, Plavec I, Meyer F, Kaido T, Gresser I, Belardelli F. Alpha 1-interferon gene transfer into metastatic Friend leukemia cells abrogated tumorigenicity in immunocompetent mice: antitumor therapy by means of interferon-producing cells. Cancer Res 1993; 53:1107-12. [PMID: 8439955] [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: 01/30/2023]
Abstract
Highly metastatic alpha/beta-interferon (IFN-alpha/beta)-resistant Friend leukemia cells (FLC) were transfected with a retroviral vector (pLTneoL-5) containing the mouse IFN-alpha 1 gene. Transfected clones were isolated and tested for their capacity to secrete IFN-alpha 1 and their tumorigenicity when injected s.c. into immunocompetent syngeneic DBA/2 mice. Almost all FLC clones producing IFN in the range of 16-512 units/ml failed to grow when injected s.c. or i.p. into normal mice, whereas control FLC (transfected with a vector without the IFN gene) exhibited the highly malignant phenotype of the original FLC. High levels of IFN were detected in peritoneal fluid, tumor extracts, and sera of mice given injections of IFN-producing cells. Injection of mice with antibodies to IFN-alpha/beta resulted in the development of tumor ascites in mice transplanted i.p. with IFN-producing FLC. In contrast to the tumor rejection observed in immunocompetent mice, IFN-producing FLC were highly tumorigenic when transplanted into immunosuppressed nude mice. Mice given injections of IFN-producing FLC developed a long-lasting tumor-specific immune resistance to subsequent injection with highly metastatic FLC. Simultaneous s.c. injection of both metastatic FLC (approximately 10(3) 50% lethal doses) and IFN-producing cells resulted in potent inhibition of the tumor growth, with a survival rate of approximately 50% for injected mice. Contralateral injection (s.c.) of IFN-producing FLC into mice with established metastatic tumors produced a marked inhibition of tumor growth, with a survival rate of 10% for injected mice. These results indicate that: (a) the genetic modification of highly metastatic FLC by means of transfer of the IFN-alpha 1 gene results in potent tumor cell rejection, which is mediated by an IFN-induced host immune response; (b) injections of IFN-producing tumor cells are effective in inhibiting tumor growth in mice with established metastatic tumors. These data suggest that tumor cells transfected with the IFN-alpha gene might be used as an effective therapy for the treatment of certain human metastatic tumors, provided that suitable strategies are defined to prevent growth of the cytokine-producing cells.
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Affiliation(s)
- M Ferrantini
- Laboratory of Virology, Istituto Superiore di Sanità, Rome, Italy
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Moore S, Obert S, Peretti M. Role of the volunteer. Contemp Longterm Care 1991; 14:26, 86. [PMID: 10115486] [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)
- S Moore
- Country Meadows of South Hills, Bridgeville, PA
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Belardelli F, Gabriele L, Proietti E, Sestili P, Peretti M, Rozera C, Gresser I. Synergistic anti-tumor effects of combined IL-1/IFN-alpha/beta therapy in mice injected with metastatic Friend erythroleukemia cells. Int J Cancer 1991; 49:274-8. [PMID: 1879971 DOI: 10.1002/ijc.2910490222] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [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: 12/29/2022]
Abstract
Peritumoral injection of relatively low doses of either mouse interferon (IFN)-alpha/beta (10,000-20,000 units/injection) or of recombinant human interleukin-1 (IL-1) beta (125-250 ng/injection) in mice transplanted s.c. with Friend erythroleukemia cells (FLC) resulted in some inhibition of primary tumor growth, inhibition of liver and splenic metastases and increased survival time. A synergistic anti-tumor effect was observed in mice injected with both IL-1 and IFN-alpha/beta. Highly purified mouse IFN-beta also exerted a synergistic anti-tumor effect when combined with IL-1-beta in mice injected with FLC. The anti-tumor action of IL-1/IFN was markedly reduced in mice treated with antibodies to CD4 antigens. Antibodies to asialo-GM1 also diminished the anti-tumor effect by the combined cytokine treatment. The combined IL-1/IFN therapy was effective in NK-deficient bg/bg mice, although the extent of the anti-tumor response in these mice was less than that observed in bg/+mice.
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Affiliation(s)
- F Belardelli
- Laboratory of Virology, Istituto Superiore di Sanità, Rome, Italy
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Peretti M. Volunteers: part of the team. Nurs Homes 1986; 35:42-3. [PMID: 10284034] [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: 04/13/2023]
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27
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Berio A, Rainero L, Bertolini A, Peretti M. [Statistical considerations on the incidence of congenital malformations at the Instituto "Gaslini"]. Minerva Pediatr 1967; 19:794-801. [PMID: 5613935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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28
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Rainero L, Berio A, Bertolini A, Peretti M. [Congenital malformations of the digestive tract. Case records of the Istituto G. Gaslini from 1939 to 1963]. Minerva Pediatr 1966; 18:1908-20. [PMID: 5993654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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29
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Morando AE, Peretti M. [Characteristics of intensive care units and the necessity of instituting them in Genoa]. G Ig Med Prev 1966; 7:194-202. [PMID: 5919554] [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: 01/17/2023]
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30
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Rainero L, Berio A, Peretti M, Bertolini A, Liotta A. [Congenital malformations of the urinary apparatus. (Clinico-statistical study done on cases of the Istituto "Gaslini" from 1939 to 1963)]. Minerva Pediatr 1966; 18:13-21. [PMID: 5949099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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