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Herst PM, Dalvai M, Lessard M, Charest PL, Navarro P, Joly-Beauparlant C, Droit A, Trasler JM, Kimmins S, MacFarlane AJ, Benoit-Biancamano MO, Bailey JL. Folic acid supplementation reduces multigenerational sperm miRNA perturbation induced by in utero environmental contaminant exposure. Environ Epigenet 2019; 5:dvz024. [PMID: 31853372 PMCID: PMC6911352 DOI: 10.1093/eep/dvz024] [Citation(s) in RCA: 5] [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] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 10/07/2019] [Accepted: 11/15/2019] [Indexed: 05/08/2023]
Abstract
Persistent organic pollutants (POPs) can induce epigenetic changes in the paternal germline. Here, we report that folic acid (FA) supplementation mitigates sperm miRNA profiles transgenerationally following in utero paternal exposure to POPs in a rat model. Pregnant founder dams were exposed to an environmentally relevant POPs mixture (or corn oil) ± FA supplementation and subsequent F1-F4 male descendants were not exposed to POPs and were fed the FA control diet. Sperm miRNA profiles of intergenerational (F1, F2) and transgenerational (F3, F4) lineages were investigated using miRNA deep sequencing. Across the F1-F4 generations, sperm miRNA profiles were less perturbed with POPs+FA compared to sperm from descendants of dams treated with POPs alone. POPs exposure consistently led to alteration of three sperm miRNAs across two generations, and similarly one sperm miRNA due to POPs+FA; which was in common with one POPs intergenerationally altered sperm miRNA. The sperm miRNAs that were affected by POPs alone are known to target genes involved in mammary gland and embryonic organ development in F1, sex differentiation and reproductive system development in F2 and cognition and brain development in F3. When the POPs treatment was combined with FA supplementation, however, these same miRNA-targeted gene pathways were perturbed to a lesser extend and only in F1 sperm. These findings suggest that FA partially mitigates the effect of POPs on paternally derived miRNA in a intergenerational manner.
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Affiliation(s)
- P M Herst
- Department of Animal Sciences, Faculty of Agricultural and Food Sciences, Centre de recherche en reproduction, développement et santé intergénérationnelle, Laval University, Quebec City, Canada
| | - M Dalvai
- Department of Animal Sciences, Faculty of Agricultural and Food Sciences, Centre de recherche en reproduction, développement et santé intergénérationnelle, Laval University, Quebec City, Canada
| | - M Lessard
- Department of Animal Sciences, Faculty of Agricultural and Food Sciences, Centre de recherche en reproduction, développement et santé intergénérationnelle, Laval University, Quebec City, Canada
| | - P L Charest
- Department of Animal Sciences, Faculty of Agricultural and Food Sciences, Centre de recherche en reproduction, développement et santé intergénérationnelle, Laval University, Quebec City, Canada
| | - P Navarro
- Department of Nutrition, Faculty of Agricultural and Food Sciences, Institute of Nutrition and Functional Foods, Centre de recherche en reproduction, développement et santé intergénérationnelle, Laval University, Quebec City, Canada
| | - C Joly-Beauparlant
- Computational Biology Laboratory Research Centre, Faculty of Medicine, Laval University, Quebec City, Canada
| | - A Droit
- Computational Biology Laboratory Research Centre, Faculty of Medicine, Laval University, Quebec City, Canada
| | - J M Trasler
- Departments of Pediatrics, Human Genetics and Pharmacology & Therapeutics, and The Montreal Children's Hospital and Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - S Kimmins
- Department of Pharmacology and Therapeutics, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
- Department of Animal Science, Faculty of Agricultural and Environmental Sciences, McGill University, Montreal, Quebec, Canada
| | - A J MacFarlane
- Nutrition Research Division, Health Canada, Ottawa, Canada
| | - M-O Benoit-Biancamano
- Faculty of Veterinary Medicine, University of Montreal University, Saint-Hyacinthe, Quebec, Canada
| | - J L Bailey
- Department of Animal Sciences, Faculty of Agricultural and Food Sciences, Centre de recherche en reproduction, développement et santé intergénérationnelle, Laval University, Quebec City, Canada
- Correspondence address. Faculty of Agricultural and Food Sciences, Laval University, Pavillon Paul-Comtois, 2425, rue de l'Agriculture. Tel: +1-418-571-7034; Fax: +1-418- 656-3766; E-mail:
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Kétilim-Novais A, Roy C, Beaulieu S, Martel-Kennes Y, Lessard M, Matte J, Lapointe J. PSX-5 Evidences of mitochondrial dysfunction and oxidative stress in newly weaned piglets. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.1073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- A Kétilim-Novais
- Agriculture et Agroalimentaire Canada / Agriculture and Agri-Food Canada,Sherbrooke, QC, Canada
| | - C Roy
- Agriculture et Agroalimentaire Canada / Agriculture and Agri-Food Canada,Sherbrooke, QC, Canada
| | - S Beaulieu
- Agriculture et Agroalimentaire Canada / Agriculture and Agri-Food Canada,Sherbrooke, QC, Canada
| | - Y Martel-Kennes
- Agriculture et Agroalimentaire Canada / Agriculture and Agri-Food Canada,Sherbrooke, QC, Canada
| | - M Lessard
- Agriculture et Agroalimentaire Canada / Agriculture and Agri-Food Canada,Sherbrooke, QC, Canada
| | - J Matte
- Agriculture et Agroalimentaire Canada / Agriculture and Agri-Food Canada,Sherbrooke, QC, Canada
| | - J Lapointe
- Agriculture et Agroalimentaire Canada / Agriculture and Agri-Food Canada,Sherbrooke, QC, Canada
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Fomenky B, Do D, Talbot G, Bissonnette N, Lessard M, Chouinard Y, Ibeagha-Awemu E. PSXV-11 Modulation of bacterial composition in the gastrointestinal tract of calves fed Lactobacillus acidophilus during the early period of growth. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- B Fomenky
- Agriculture and Agri-Food canada,Québec, QC, Canada
| | - D Do
- Agriculture and Agri-Food Canada,Sherbrooke, QC, Canada
| | - G Talbot
- Agriculture et Agroalimentaire Canada / Agriculture and Agri-Food Canada,Sherbrooke, QC, Canada
| | - N Bissonnette
- Agriculture et Agroalimentaire Canada / Agriculture and Agri-Food Canada,Sherbrooke, QC, Canada
| | - M Lessard
- Agriculture et Agroalimentaire Canada / Agriculture and Agri-Food Canada,Sherbrooke, QC, Canada
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Fomenky B, Do D, Talbot G, Bissonnette N, Lessard M, Chouinard Y, Ibeagha-Awemu E. 452 Supplementation of Saccharomyces cerevisiae boulardii and an antibiotic growth promoter affects bacterial composition of the gastrointestinal tract of calves during the pre- and post-weaning periods. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.510] [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: 11/12/2022] Open
Affiliation(s)
- B Fomenky
- Agriculture and Agri-Food canada,Sherbrooke, QC, Canada
| | - D Do
- Agriculture and Agri-Food canada,Sherbrooke, QC, Canada
| | - G Talbot
- Agriculture et Agroalimentaire Canada / Agriculture and Agri-Food Canada,Sherbrooke, QC, Canada
| | - N Bissonnette
- Agriculture et Agroalimentaire Canada / Agriculture and Agri-Food Canada,Sherbrooke, QC, Canada
| | - M Lessard
- Agriculture et Agroalimentaire Canada / Agriculture and Agri-Food Canada,Sherbrooke, QC, Canada
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Jobin F, Vu L, Lessard M. Two Cases of Inherited Triple Deficiency in a Large Kindred with Thrombotic Diathesis and Deficiencies of Antithrombin III, Heparin Cofactor II, Protein C and Protein S. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1646410] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryThirty-three subjects, belonging to a large family with functional antithrombin III (ATIII) deficiency (type IIa) and recurrent thromboembolism, were investigated for ATIII, heparin cofactor II (HCII), protein C (PC) and protein S (PS). We report the exceptional finding of two cases of triple deficiency: ATIII combined with HCII and PC in the first case aged 15 and ATIII combined with HCII and PS in the second case aged 27. Interestingly, both are asymptomatic thus far. Twenty-five other deficient members were found, among which seven are affected with a double deficiency. Totally, the results of our study show 38 deficiencies of four distinct antithrombotic protein: ATIII (n = 9), HCII (n = 9), PC (n = 7) or PS (n = 13). Two types of HCII deficiency were observed and type I PC deficiency was found. Functional PS deficiency was characterized by reduced levels of cofactor activity for activated PC. Our report demonstrates that combined deficiencies should be sought in a family already known to be deficient in one antithrombotic protein.
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Affiliation(s)
- F Jobin
- The Laboratoire d'Hémostase-Thrombose, Centre d'Hématologie et d'Immunologie Clinique, Hôpital du Saint-Sacrement, Québec, Canada
| | - L Vu
- The Laboratoire d'Hémostase-Thrombose, Centre d'Hématologie et d'Immunologie Clinique, Hôpital du Saint-Sacrement, Québec, Canada
| | - M Lessard
- I'Hôpital Hôtel-Dieu de Gaspé, Québec, Canada
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Vitali M, Conte S, Lessard M, Deschêne K, Benoit-Biancamano MO, Celeste C, Martelli G, Sardi L, Guay F, Faucitano L. Use of the spectrophotometric color method for the determination of the age of skin lesions on the pig carcass and its relationship with gene expression and histological and histochemical parameters. J Anim Sci 2018; 95:3873-3884. [PMID: 28991993 DOI: 10.2527/jas2017.1813] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The presence of lesions on the pig carcass is an indicator of poor animal welfare and has economic impact as it downgrades the carcass value. The assessment of the age of lesions on the carcass may help identify risk factors and ultimately prevent their occurrence. The aim of this study was to assess the age of lesions on pig carcasses through spectrophotometric color evaluation and to relate the results with gene expression and histological and histochemical parameters. A total of 96 barrows were mixed 4 times over 3 d before slaughter and 80 lesions were selected after skin lesion observations to define 4 age categories: < 7 h (T1), 7-25 h (T2), 25-30 h (T3), and 49-54 h (T4). A nonlesioned skin area was used as a control. At slaughter, 3 biopsies per lesion and control skin were taken immediately after bleeding for analyses of gene expression (, , , , , , , , , ), skin histological characteristics (inflammation, erosion or ulceration, and necrosis), and enzyme activity (alkaline phosphatase and adenosine triphosphatase). The number of lesions was counted on each carcass, and the color was assessed visually by a pictorial chart and instrumentally through a spectrophotometer. Delta values (Δ) were calculated as the difference between the value of the lesion and the value of the control for all measures, except for the histological analysis. Results indicated that visual color observation was not sufficiently accurate to discriminate lesions by time of infliction ( > 0.10), while the spectrophotometer ΔL* and Δa* values variation allowed the identification of < 7 h or > 25 h old lesions ( < 0.05). Similarly, the expression of , , , , and genes was higher ( < 0.05) in < 7 h old lesions, while gene expression was higher ( < 0.05) in < 25 h old lesions. As for the histological analysis, the severity of inflammation was correlated with the age of the lesion (lower score in < 7 h old lesions and higher score in > 25 h old lesions; < 0.05). To conclude, the spectrophotometric color assessment of the carcass lesions at slaughter appears to be a reliable method to discriminate between fresh and older lesions on the carcass at the abattoir.
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Farmer C, Lessard M, Knight CH, Quesnel H. Oxytocin injections in the postpartal period affect mammary tight junctions in sows. J Anim Sci 2018; 95:3532-3539. [PMID: 28805889 DOI: 10.2527/jas.2017.1700] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The potential impacts of injecting oxytocin (OXY) to sows in the early postpartum period on the quality of mammary tight junctions, milk composition, and immune status of sows and piglets were studied. Postparturient sows received i.m. injections of either saline (control [CTL]; = 10) or 75 IU of OXY ( = 10). Injections were given twice daily (0800 and 1630 h) starting on d 2 of lactation (i.e., between 12 and 20 h after birth of the last piglet), totaling 4 injections. Milk samples were obtained before the first injection (d 2 morning [AM]), before the second injection (d 2 afternoon [PM]), and on d 4 PM and d 5 PM. Blood samples were obtained from sows before milking on d 2 AM, d 2 PM, and d 5 PM. On d 5 of lactation, a blood sample was obtained from 3 piglets per litter. Circulating concentrations of prolactin, IGF-I, lactose, and IgA in sows did not differ between treatments at any time ( > 0.10), but OXY sows had less IgG than CTL sows ( < 0.01) on d 2 PM before the second OXY injection. There were differences in milk composition on d 2 PM, with OXY sows having more IGF-I ( < 0.01), solids ( < 0.05), protein ( < 0.01), energy ( < 0.05), and IgA ( < 0.01) and a greater Na:K ratio ( < 0.01) than CTL sows. These differences were not seen in the next 2 milk samples, except for protein and IgA that still tended ( < 0.10) to be greater in OXY vs. CTL sows on d 4 PM (for protein) and on d 5 PM (for IgA) after the last injection. Milk lactose content was lower in OXY vs. CTL sows on d 5 PM ( < 0.01). Values for immunoglobulin immunocrit, IgG, IgA, and IGF-I in piglet blood did not differ between treatments ( > 0.10). Injecting OXY to sows in the early postpartum period increased leakiness of the mammary tight junctions, improved composition of early milk, and may potentially affect immune status of neonatal piglets.
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Morissette B, Talbot G, Beaulieu C, Lessard M. Growth performance of piglets during the first two weeks of lactation affects the development of the intestinal microbiota. J Anim Physiol Anim Nutr (Berl) 2017; 102:525-532. [PMID: 28990221 DOI: 10.1111/jpn.12784] [Citation(s) in RCA: 21] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 06/18/2017] [Indexed: 01/22/2023]
Abstract
The aim of this study was to evaluate the effect of newborn piglet weight gain during the first 2 weeks of lactation on the luminal and mucosal microbiota of the ileum and colon. The microbiota from high-weight-gain (HWG) and low-weight-gain (LWG) 2-week-old piglets was characterized by amplicon length heterogeneity PCR (LH-PCR) and compared using diversity indices and multivariate statistical analyses. At birth, LWG piglets weighted in average 0.26 kg less than HWG piglets (p = .002). The weight difference between LWG and HWG piglets increased with time and reached 2.1 kg after 16 days of lactation (p < .0001). Based on these growth performance differences, estimated colostrum and milk intake was greater in HWG than in LWG piglets (p < .0001). Analysis of the LH-PCR data of the microbiota using non-metric multidimensional scaling (NMS) and blocked multiresponse permutation procedure (MRBP) revealed that the microbiota of the HWG and LWG piglets tended to differ in ileal mucosa (p = .097) and differed in colonic lumen (p = .024). The microbiota of HWG piglets had higher levels of Bacteroidetes, Bacteroides and Ruminoccocaceae, and lower proportions of Actinobacillus porcinus and Lactobacillus amylovorus when compared with those of LWG piglets. As the weight gain of nursing piglets is highly correlated with the amount of ingested colostrum and milk, the results strongly suggest that colostrum and milk intake in the first 2 weeks of life influenced the development of the gut microbiota.
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Affiliation(s)
- B Morissette
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, Sherbrooke, QC, Canada.,Département de Biologie, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - G Talbot
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, Sherbrooke, QC, Canada
| | - C Beaulieu
- Département de Biologie, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - M Lessard
- Agriculture and Agri-Food Canada, Sherbrooke Research and Development Centre, Sherbrooke, QC, Canada
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Vitali M, Conte S, Lessard M, Deschêne K, Benoit-Biancamano M, Celeste C, Martelli G, Sardi L, Guay F, Faucitano L. Use of the spectrophotometric color method for the determination of the age of skin lesions on the pig carcass and its relationship with gene expression and histological and histochemical parameters1. J Anim Sci 2017. [DOI: 10.2527/jas.2017.1813] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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10
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Farmer C, Quesnel H, Lessard M, Knight CH. 342 Injections of oxytocin in the early postpartum period affect the status of mammary tight junctions in swine. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.342] [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: 11/13/2022] Open
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11
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Farmer C, Lessard M, Knight CH, Quesnel H. Oxytocin injections in the postpartal period affect mammary tight junctions in sows. J Anim Sci 2017. [DOI: 10.2527/jas2017.1700] [Citation(s) in RCA: 2] [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: 11/13/2022] Open
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12
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Brown RF, Davis R, Wilson Genderson M, Grant S, Cadet D, Lessard M, Alpert J, Ward J, Ginder G. African-American patients with cancer Talking About Clinical Trials (TACT) with oncologists during consultations: evaluating the efficacy of tailored health messages in a randomised controlled trial-the TACT study protocol. BMJ Open 2016; 6:e012864. [PMID: 27986738 PMCID: PMC5168644 DOI: 10.1136/bmjopen-2016-012864] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
INTRODUCTION Low rates of accrual of African-American (AA) patients with cancer to therapeutic clinical trials (CTs) represent a serious and modifiable racial disparity in healthcare that impedes the development of promising cancer therapies. Suboptimal physician-patient consultation communication is a barrier to the accrual of patients with cancer of any race, but communication difficulties are compounded with AA patients. Providing tailored health messages (THM) to AA patients and their physician about CTs has the potential to improve communication, lower barriers to accrual and ameliorate health disparities. OBJECTIVE (1) Demonstrate the efficacy of THM to increase patient activation as measured by direct observation. (2) Demonstrate the efficacy of THM to improve patient outcomes associated with barriers to AA participation. (3) Explore associations among preconsultation levels of: (A) trust in medical researchers, (B) knowledge and attitudes towards CTs, (C) patient-family member congruence in decision-making, and (D) involvement/information preferences, and group assignment. METHODS AND ANALYSIS First, using established methods, we will develop THM materials. Second, the efficacy of the intervention is determined in a 2 by 2 factorial randomised controlled trial to test the effectiveness of (1) providing 357 AA patients with cancer with THM with 2 different 'depths' of tailoring and (2) either providing feedback to oncologists about the patients' trial THM or not. The primary analysis compares patient engaged communication in 4 groups preconsultation and postconsultation. ETHICS AND DISSEMINATION This study was approved by the Virginia Commonwealth University Institutional Review Board. To facilitate use of the THM intervention in diverse settings, we will convene 'user groups' at 3 major US cancer centres. To facilitate dissemination, we will post all materials and the implementation guide in publicly available locations. TRIAL REGISTRATION NUMBER NCT02356549.
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Affiliation(s)
- R F Brown
- Department of Health Behavior and Policy, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - R Davis
- Department of Health Promotion, Education and Behavior, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina, USA
| | - M Wilson Genderson
- Siminoff Research Group, College of Public Health, Temple University, Philadelphia, Pennsylvania, USA
| | - S Grant
- Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - D Cadet
- Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - M Lessard
- Department of Health Behavior and Policy, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - J Alpert
- Department of Health Behavior and Policy, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - J Ward
- Department of Health Behavior and Policy, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
| | - G Ginder
- Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, Virginia, USA
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Bissonnette N, Jiang X, Matte J, Guay F, Talbot G, Bontempo V, Gong J, Wang Q, Lessard M. Effect of a post-weaning diet supplemented with functional feed additives on ileal transcriptome activity and serum cytokines in piglets challenged with lipopolysaccharide. Vet Immunol Immunopathol 2016; 182:136-149. [DOI: 10.1016/j.vetimm.2016.10.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 09/26/2016] [Accepted: 10/14/2016] [Indexed: 10/20/2022]
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Talbot G, Lessard M, Yergeau E, Gagnon N, Lo Verso L, Lapointe J, Bissonnette N, Bueno Dalto D, Ouattara B, Guay F, Matte JJ. 1744 Effects of different sources and routes of administration of copper and vitamins A and D on piglets gut microbiota. J Anim Sci 2016. [DOI: 10.2527/jam2016-1744] [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: 11/13/2022] Open
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Vitali M, Conte S, Lessard M, Martelli G, Guay F, Faucitano L. 1735 Assessment of the age of lesions on the pig carcass at the abattoir through spectrophotometric color assessment and gene expression analysis. J Anim Sci 2016. [DOI: 10.2527/jam2016-1735] [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: 11/13/2022] Open
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16
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Lo Verso L, Matte JJ, Talbot G, Lapointe J, Bissonnette N, Guay F, Gagnon N, Ouattara B, Lessard M. 1740 Effects of different sources and routes of administration of copper and vitamins A and D on gut volatile fatty acids and gene expression involved in regulation of innate and acquired immunity in piglets. J Anim Sci 2016. [DOI: 10.2527/jam2016-1740] [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: 11/13/2022] Open
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17
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Matte JJ, Audet I, Ouattara B, Bissonnette N, Talbot G, Lapointe J, Guay F, Lo Verso L, Lessard M. 246 Sources and routes of administration of copper and vitamins A and D on metabolic status of these micronutrients in suckling piglets. J Anim Sci 2016. [DOI: 10.2527/msasas2016-246] [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: 11/13/2022] Open
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Lessard M, Deschíne K, Morissette B, Blais M, Beaudoin F, Lauzon K, Talbot G. 308 Intestinal microbiota and expression of genes involved in immunity are modulated in nursing piglets by growth performance in the first week of life. J Anim Sci 2016. [DOI: 10.2527/msasas2016-308] [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: 11/13/2022] Open
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Brousseau JP, Talbot G, Beaudoin F, Lauzon K, Roy D, Lessard M. Effects of probiotics Pediococcus acidilactici strain MA18/5M and Saccharomyces cerevisiae subsp. boulardii strain SB-CNCM I-1079 on fecal and intestinal microbiota of nursing and weanling piglets1. J Anim Sci 2015; 93:5313-26. [DOI: 10.2527/jas.2015-9190] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [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)
- J.-P. Brousseau
- Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, Québec, Canada J1M 0C8
- Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, Canada G1V 0A6
| | - G. Talbot
- Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, Québec, Canada J1M 0C8
| | - F. Beaudoin
- Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, Québec, Canada J1M 0C8
| | - K. Lauzon
- Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, Québec, Canada J1M 0C8
| | - D. Roy
- Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, Canada G1V 0A6
| | - M. Lessard
- Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, Québec, Canada J1M 0C8
- Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, Canada G1V 0A6
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Audet I, Girard CL, Lessard M, Lo Verso L, Beaudoin F, Matte JJ. Homocysteine metabolism, growth performance, and immune responses in suckling and weanling piglets. J Anim Sci 2014; 93:147-57. [PMID: 25412751 DOI: 10.2527/jas.2014-7872] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Homocysteine (Hcy), an intermediary sulfur AA, is recognized as a powerful prooxidant with deleterious effects on physiological and immune functions. In piglets, there is an acute 10-fold increase of plasma concentrations of homocysteine (pHcy) during the first 2 wk of life. This project aimed to maximize pHcy variations within physiological ranges using typical supplies of folates and vitamin B12 (B12) to sows and piglets. Growth, immune response, and Hcy metabolism of piglets were studied until piglets reached 56 d of age. Third-parity sows were randomly assigned to a 2 × 2 split-plot design with 2 dietary treatments during gestation and lactation, S(-) (1 mg/kg folates and 20 µg/kg B12, n = 15) and S(+) (10-fold S(-) levels, n = 16), and 2 treatments to piglets within each half litter, intramuscular injections (150 µg) of B12 (P(+)) at d 1 and 21 (weaning) and saline (P(-)). Within each litter of 12 piglets, 3 P(+) and 3 P(-) piglets were studied for growth and Hcy metabolism, and the others were studied for immune responses. During lactation, plasma B12 decreased and was transiently greater in S(+) vs. S(-) piglets on d 1 and P(+) vs. P(-) piglets on d 7 (sow treatment × age and piglet treatment × age; P < 0.05). From 14 to 21 d of age, pHcy was 33% lower in S(+)P(+) vs. S(-)P(-) piglets (sow treatment × piglet treatment interaction; P < 0.05). At 56 d of age, hepatic B12 was greater and pHcy was lower for P(+) vs. P(-) piglets (P < 0.05). No treatment effect was observed on growth except for a lower postweaning G:F in S(+)P(-) piglets than in others (sow treatment × piglet treatment interaction; P < 0.05). Positive correlations were observed between pHcy and growth (r > 0.29, P < 0.05) before and after weaning. Antibody responses to ovalbumin and serum tumor necrosis factor-α were not affected by treatments, but postweaning serum IL-8 peaked earlier in S(-)P(-) vs. S(+)P(+) piglets (piglet treatment × age; sow treatment × piglet treatment interaction, P < 0.05). Proliferation of lymphocytes in response to the mitogen concanavalin A tended to be lower in culture media supplemented with sera from S(-) vs. S(+) piglets (P = 0.081) and P(-) vs. P(+) piglets (P = 0.098), and the reduction of response was more marked (P < 0.05) with high (>21 µM) compared to medium (17 to 21 µM) or low (<17 µM) pHcy. In conclusion, the present vitamin supplements to sows and/or piglets produced variations of pHcy that were not apparently harmful for growth performance of piglets. The greater pHcy, particularly prevalent in S(-) and/or P(-) piglets, had negative effects on some indicators of immune responses, suggesting that these young animals may be immunologically more fragile.
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Affiliation(s)
- I Audet
- Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, 2000 College Street, Sherbrooke, Québec J1M 0C8, Canada
| | - C L Girard
- Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, 2000 College Street, Sherbrooke, Québec J1M 0C8, Canada
| | - M Lessard
- Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, 2000 College Street, Sherbrooke, Québec J1M 0C8, Canada
| | - L Lo Verso
- Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, 2000 College Street, Sherbrooke, Québec J1M 0C8, Canada Department of Veterinary Science for Health, Animal Production, and Food Safety, University of Milan, Milan 20133, Italy
| | - F Beaudoin
- Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, 2000 College Street, Sherbrooke, Québec J1M 0C8, Canada
| | - J J Matte
- Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, 2000 College Street, Sherbrooke, Québec J1M 0C8, Canada
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Jannot M, Gnyubkin V, Lessard M, Laroche N, Mariat C, Thomas T, Vico L, Lafage-Proust M. L’expression ostéocytaire de MEPE (Matrix Extracellular Phosphoglycoprotein) et de son produit de clivage ASARM est spécifique des troubles de la minéralisation observés dans l’ostéodystrophie rénale. Nephrol Ther 2014. [DOI: 10.1016/j.nephro.2014.07.267] [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: 10/24/2022]
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Dudemaine P, Fecteau G, Lessard M, Labrecque O, Roy J, Bissonnette N. Increased blood-circulating interferon-γ, interleukin-17, and osteopontin levels in bovine paratuberculosis. J Dairy Sci 2014; 97:3382-93. [DOI: 10.3168/jds.2013-7059] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Accepted: 02/12/2014] [Indexed: 12/12/2022]
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Bovey KE, Widowski TM, Dewey CE, Devillers N, Farmer C, Lessard M, Torrey S. The effect of birth weight and age at tail docking and ear notching on the behavioral and physiological responses of piglets1. J Anim Sci 2014; 92:1718-27. [DOI: 10.2527/jas.2013-7063] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [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)
- K. E. Bovey
- University of Guelph, Guelph, Ontario, Canada, N1G 2W1
| | | | - C. E. Dewey
- University of Guelph, Guelph, Ontario, Canada, N1G 2W1
| | - N. Devillers
- Agriculture and Agri-Food Canada, Sherbrooke, Québec, Canada, J1M OC8
| | - C. Farmer
- Agriculture and Agri-Food Canada, Sherbrooke, Québec, Canada, J1M OC8
| | - M. Lessard
- Agriculture and Agri-Food Canada, Sherbrooke, Québec, Canada, J1M OC8
| | - S. Torrey
- University of Guelph, Guelph, Ontario, Canada, N1G 2W1
- Agriculture and Agri-Food Canada, Sherbrooke, Québec, Canada, J1M OC8
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Coulombe J, Bertrand J, Lavoie M, Lessard M, Leclerc G, Dupéré A. [Pyoderma vegetans due to Candida albicans: successful treatment with itraconazole]. Ann Dermatol Venereol 2012; 139:836-7. [PMID: 23237284 DOI: 10.1016/j.annder.2012.06.048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Revised: 06/06/2012] [Accepted: 06/28/2012] [Indexed: 11/28/2022]
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Lessard M, Beaudoin F, Ménard M, Lachance MP, Laforest JP, Farmer C. Impact of a long photoperiod during lactation on immune status of piglets. J Anim Sci 2012; 90:3468-76. [PMID: 22665650 DOI: 10.2527/jas.2012-5191] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The effects of a long photoperiod treatment around parturition and throughout lactation on immune status of piglets were studied. Sows were assigned to 2 light regimens: i) standard short photoperiod (SP, n = 17), 8 h of daily light from d 112 of gestation until d 23 of lactation; and ii) long photoperiod (LP, n = 17), 23 h of daily light from d 112 of gestation to d 4 of lactation and 16 h thereafter. In front of the crates, under the side heat lamps and behind the sow, light intensities were 59 ± 5, 109 ± 6, and 44 ± 6 lx, respectively. On d 15 of lactation and at weaning (d 23), 2 piglets of similar BW per litter were selected and immunized intramuscularly with ovalbumin (OVA). Blood samples (5 mL serum and 10 mL whole blood) were taken at d 15 and d 23 of lactation, and at d 30, 37, and 44 of age after weaning to evaluate the antibody response to OVA and measure phagocytosis, lymphocyte proliferative response, and different circulating blood lymphocyte populations of piglets. Results showed that phagocytosis was increased in piglets submitted to LP (P < 0.05). A treatment × time interaction (P < 0.001) indicated that SP piglets developed a better IgG response to OVA than LP piglets. The percentage of B lymphocytes was also increased (P = 0.02) in SP piglets compared with piglets exposed to LP during lactation; the lymphocyte response to OVA tended to be enhanced (P = 0.07) over time in SP piglets. Different subpopulations of CD8+ lymphocytes were markedly increased in SP piglets at 23 d of age compared with piglets exposed to LP (treatment × time: P < 0.05). These results suggest that exposure of piglets to LP during lactation seems to reduce the capacity of piglets to develop a strong immune response to novel antigens. This may have important consequences on the ability of piglets to resist an infection after weaning.
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Affiliation(s)
- M Lessard
- Agriculture and Agri-Food Canada, Dairy and Swine R & D Centre, 2000 College St., Sherbrooke, QC J1M 0C8, Canada.
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Matte J, LeFloc’h N, Primot Y, Lessard M. Interaction between dietary tryptophan and pyridoxine on tryptophan metabolism, immune responses and growth performance in post-weaning pigs. Anim Feed Sci Technol 2011. [DOI: 10.1016/j.anifeedsci.2011.09.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Lessard M, Chouiali A, Drouin R, Sébire G, Corbin F. Quantitative measurement of FMRP in blood platelets as a new screening test for fragile X syndrome. Clin Genet 2011; 82:472-7. [PMID: 21992468 DOI: 10.1111/j.1399-0004.2011.01798.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The fragile X syndrome usually results from CGG repeats expansion and methylation of the FMR1 gene leading to the absence of expression of its encoded protein, fragile X mental retardation protein (FMRP). Therefore, its diagnosis is traditionally based on the detection of these molecular alterations. As an alternative, FMRP-based screening methods have been proposed over the years. Most of them are based on immunohistochemistry analyses applied to a restricted number of lymphocytes (100) or hair roots (10-20) with limited diagnosis potential. In this study, we describe a truly quantitative approach using a new model, the blood platelet, which can be recovered easily with very high purity (99.9%). FMRP levels in platelets were first measured in a control population (n = 124) and reference values were established. FMRP measurements were also performed in confirmed fragile X subjects. Receiver operating characteristic curve analysis has shown that our test can easily discriminate fragile X males and females from controls (area under curve, AUC = 0.948). Cognitive functions were also assessed in these individuals using age-specific Wechsler Intelligence Scales for Children and the Vineland Adaptive Behavior Scales. A proportional relationship between FMRP levels, intelligence quotient and adaptive behavior was observed among fragile X individuals, suggesting that our test would be able to detect fragile X cases and may predict cognitive functions.
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Affiliation(s)
- M Lessard
- Department of Biochemistry Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Québec, Canada
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Patrier L, Dupuis AM, Granger Vallee A, Chenine L, Leray-Moragues H, Chalabi L, Morena M, Canaud B, Cristol JP, Akizawa T, Fukuhara S, Fukagawa M, Onishi Y, Yamaguchi T, Hasegawa T, Kido R, Kurokawa K, Vega O, Usvyat L, Rosales L, Thijssen S, Levin N, Kotanko P, An WS, Son YK, Kim SE, Kim KH, Han JY, Bae HR, Park Y, Passlick-Deetjen J, Kroczak M, Buschges-Seraphin B, Covic AC, Ponce P, Marzell B, Schulze F, de Francisco ALM, Esteve V, Junque A, Duarte V, Fulquet M, Saurina A, Pou M, Salas K, Macias J, Sanchez Ramos A, Lavado M, Ramirez de Arellano M, Del Valle E, Negri AL, Ryba J, Peri P, Puddu M, Bravo M, Rosa Diez G, Crucelegui S, Sintado L, Bevione PE, Canalis M, Fradinger E, Marini A, Marelli C, Schiller A, Covic A, Schiller O, Roman V, Andrei C, Berca S, Ivacson Z, Anton C, Raletchi C, Sezer S, Tutal E, Bal Z, Erkmen Uyar M, Ozdemir Acar FN, Lessard M, Ouimet D, Leblanc M, Nadeau-Fredette AC, Bell R, Lafrance JP, Pichette V, Vallee M, Solak Y, Atalay H, Torun B, Tonbul Z, Lacueva J, Santamaria C, Bordils A, Vicent C, Fernandez M, Casado M, Karakan S, Sezer S, Tutal E, Ozdemir Acar N, Ishimura E, Okuno S, Tsuboniwa N, Ichii M, Yamakawa T, Shoji S, Inaba M, Lomonte C, Derosa C, Libutti P, Teutonico A, Chimienti D, Antonelli M, Bruno A, Cocola S, Basile C, Petrucci I, Giovannini L, Samoni S, Colombini E, Cupisti A, Meola M, Stancu S, Zugravu A, Stanescu B, Barbulescu C, Anghel C, Cinca S, Petrescu L, Mircescu G, Hung PH, Chiang PC, Jong IC, Hsiao CY, Hung KY, Tentori F, Karaboyas A, Sen A, Hecking M, Bommer J, Depner T, Akiba T, Port FK, Robinson BM, Basile C, Libutti P, Di Turo AL, Vernaglione L, Casucci F, Losurdo N, Teutonico A, Lomonte C, Sanadgol H, Baiani M, Mohanna M, Basile C, Libutti P, Di Turo AL, Casucci F, Losurdo N, Teutonico A, Vernaglione L, Lomonte C, Negri AL, Del Valle EE, Zanchetta MB, Nobaru M, Silveira F, Puddu M, Barone R, Bogado CE, Zanchetta JR, Mlot-Michalska M, Grzegorzewska AE, Fedak D, Kuzniewski M, Janda K, Krzanowski M, Pawlica D, Kusnierz-Cabala B, Solnica B, Sulowicz W, Novotna H, vara F, Polakovic V, Sedlackova E, Marzell B, Kaufmann P, Merello JI, Mora J, Crespo A, Arens HJ, Passlick-Deetjen J, Takahashi T, Ogawa H, Kitajima Y, Sato Y, Cayabyab S, Mallari J, Kikuchi H, Nakayama H, Saito N, Shimada H, Miyazaki S, Sakai S, Suzuki M, Gonzalez E, Torregrosa V, Cannata J, Gonzalez MT, Arenas MD, Montenegro J, Rios F, Mora J, Moreno R, Muniz ML, Copley JB, Smyth M, Poole L, Wilson R. Bone disease in CKD 5D. Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.40] [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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29
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Farmer C, Giguère A, Lessard M. Dietary supplementation with different forms of flax in late gestation and lactation: Effects on sow and litter performances, endocrinology, and immune response1,2. J Anim Sci 2010; 88:225-37. [DOI: 10.2527/jas.2009-2023] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Lessard M, Dupuis M, Gagnon N, Nadeau E, Matte JJ, Goulet J, Fairbrother JM. Erratum to "Administration of Pediococcus acidilactici or Saccharomyces cerevisiae boulardii modulates development of porcine mucosal immunity and reduces intestinal bacterial translocation after Escherichia coli challenge" (J. Anim. Sci. 87:922-934). J Anim Sci 2009. [DOI: 10.2527/jas.2009-87-10-3440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Lessard M, Dupuis M, Gagnon N, Nadeau E, Matte JJ, Goulet J, Fairbrother JM. Administration of Pediococcus acidilactici or Saccharomyces cerevisiae boulardii modulates development of porcine mucosal immunity and reduces intestinal bacterial translocation after Escherichia coli challenge1,2. J Anim Sci 2009; 87:922-34. [DOI: 10.2527/jas.2008-0919] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Torrey S, Devillers N, Lessard M, Farmer C, Widowski T. Effect of age on the behavioral and physiological responses of piglets to tail docking and ear notching. J Anim Sci 2008; 87:1778-86. [PMID: 19098245 DOI: 10.2527/jas.2008-1354] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Neonatal piglets are often subject to potentially painful processing procedures such as tail docking and ear notching during the first few days after birth. However, these procedures may influence the development of suckling behavior and passive transfer of immunoglobulins, especially if done within the first day postpartum. The objective of this experiment was to compare the effects of processing piglets during the first 24 h versus at 3 d of age on suckling and pain-related behavior, the passive transfer of immunoglobulins, and growth. Six piglets per litter from 20 litters (n = 120 piglets) were used in a 3 x 2 complete block design. Piglets were weighed at birth and assigned to 1 of 3 treatments (balanced by birth weight): control (unmanipulated), sham processed (manually manipulated), and processed (tail docked and ear notched) at 1 of 2 ages (1 or 3 d of age). Vocalizations were recorded during the procedures, and piglets were observed after the procedures for pain-related behavior. Suckling behavior was observed for 6 h on each of d 1 to 4. Colostrum samples were collected after the birth of all piglets (before first suck), and blood samples were collected on d 5 to examine concentrations of immunoglobulins (IgA and IgG) and IGF-I. Body weights were measured at birth and on d 5 and 14. During the procedures, processed piglets, regardless of age, vocalized at a greater frequency (P < 0.001) and produced more high frequency calls (P = 0.016) than sham-processed piglets. All piglets on d 1 produced more high frequency calls than all piglets on d 3 (P = 0.047). Immediately after the procedures, sham-processed and processed piglets spent less time lying and more time standing than control piglets (P < 0.001), whereas processed piglets jammed their tail between their legs more than sham-processed or control piglets (P < 0.001). Lying, standing and tail posture were not influenced by age, nor were there age by treatment interactions. Piglets on d 1 trembled more than piglets on d 3 (P < 0.001), and this tended to be exacerbated by processing (P = 0.076). There was no effect of treatment or age of treatment on suckling behavior. Processed piglets had decreased IgG serum concentrations compared with sham-processed and control piglets (P = 0.029), although there was no interaction between treatment and age of treatment (P = 0.67). Whereas tail docking and ear notching do appear to result in short-term pain and modulated immune status, processing on d 1 appears neither better nor worse than processing on d 3.
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Affiliation(s)
- S Torrey
- Agriculture and Agri-Food Canada, Dairy and Swine Research and Development Centre, Sherbrooke, Québec, J1M 1Z3, Canada.
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Gervais C, Murati A, Helias C, Struski S, Eischen A, Lippert E, Tigaud I, Penther D, Bastard C, Mugneret F, Poppe B, Speleman F, Talmant P, VanDen Akker J, Baranger L, Barin C, Luquet I, Nadal N, Nguyen-Khac F, Maarek O, Herens C, Sainty D, Flandrin G, Birnbaum D, Mozziconacci MJ, Lessard M. Acute myeloid leukaemia with 8p11 (MYST3) rearrangement: an integrated cytologic, cytogenetic and molecular study by the groupe francophone de cytogénétique hématologique. Leukemia 2008; 22:1567-75. [PMID: 18528428 DOI: 10.1038/leu.2008.128] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Thirty cases of acute myeloid leukaemia (AML) with MYST histone acetyltransferase 3 (MYST3) rearrangement were collected in a retrospective study from 14 centres in France and Belgium. The mean age at diagnosis was 59.4 years and 67% of the patients were females. Most cases (77%) were secondary to solid cancer (57%), haematological malignancy (35%) or both (8%), and appeared 25 months after the primary disease. Clinically, cutaneous localization and disseminated intravascular coagulation were present in 30 and 40% of the cases, respectively. AMLs were myelomonocytic (7%) or monocytic (93%), with erythrophagocytosis (75%) and cytoplasmic vacuoles (75%). Immunophenotype showed no particularity compared with monocytic leukaemia without MYST3 abnormality. Twenty-eight cases carried t(8;16)(p11;p13) with MYST3-CREBBP fusion, one case carried a variant t(8;22)(p11;q13) and one case carried a t(8;19)(p11;q13). Type I (MYST3 exon 16-CREBBP exon 3) was the most frequent MYST3-CREBBP fusion transcript (65%). MYST3 rearrangement was associated with a poor prognosis, as 50% of patients deceased during the first 10 months. All those particular clinical, cytologic, cytogenetic, molecular and prognostic characteristics of AML with MYST3 rearrangement may have allowed an individualization into the World Health Organization classification.
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Affiliation(s)
- C Gervais
- Laboratoire d'Hématologie, CHU de Hautepierre, Strasbourg, France.
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Struski S, Mauvieux L, Gervais C, Hélias C, Liu KL, Lessard M. ETV6/GOT1 fusion in a case of t(10;12)(q24;p13)-positive myelodysplastic syndrome. Haematologica 2008; 93:467-8. [PMID: 18310541 DOI: 10.3324/haematol.11988] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023] Open
Abstract
The ETV6/GOT1 fusion, resulting from t(10;12) (q24;p13), has been recently described in a myelodysplastic syndrome. We reported a second case of t(10;12)-positive myelodysplastic syndrome in whom fluorescent in situ hybridization confirmed the non-random translocation but molecular biology analyses revealed a ETV6/GOT1 chimera varying from the first case described.
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MESH Headings
- Aged
- Anemia, Refractory, with Excess of Blasts/complications
- Anemia, Refractory, with Excess of Blasts/genetics
- Aspartate Aminotransferase, Cytoplasmic/genetics
- Chromosome Breakage
- Chromosomes, Human, Pair 10/genetics
- Chromosomes, Human, Pair 10/ultrastructure
- Chromosomes, Human, Pair 12/genetics
- Chromosomes, Human, Pair 12/ultrastructure
- Disease Progression
- Fatal Outcome
- Female
- Humans
- Karyotyping
- Leukemia, Myeloid, Acute/complications
- Leukemia, Myeloid, Acute/genetics
- Mastocytosis/complications
- Oncogene Proteins, Fusion/genetics
- Proto-Oncogene Proteins c-ets/genetics
- Repressor Proteins/genetics
- Translocation, Genetic
- ETS Translocation Variant 6 Protein
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Hélias C, Struski S, Gervais C, Leymarie V, Mauvieux L, Herbrecht R, Lessard M. Polycythemia vera transforming to acute myeloid leukemia and complex abnormalities including 9p homogeneously staining region with amplification of MLLT3, JMJD2C, JAK2, and SMARCA2. ACTA ACUST UNITED AC 2008; 180:51-5. [PMID: 18068534 DOI: 10.1016/j.cancergencyto.2007.09.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2007] [Accepted: 09/12/2007] [Indexed: 11/26/2022]
Abstract
Polycythemia vera (PV) is a clonal stem cell disorder characterized by an excessive erythrocyte production. At diagnosis, a normal karyotype is found in < or =80% of cases, but an abnormal karyotype frequently develops with evolution. Trisomy 9 and gains on 9p are some of the most frequent cytogenetic abnormalities, together with trisomy 8 and del(20q) in both PV and idiopathic myelofibrosis. We report the case of a 54-year-old man whose disease was classified as an acute myeloid transformation of PV. Cytogenetic and multicolor fluorescence in situ hybridization (FISH) analysis detected several chromosomal abnormalities that included an amplification of 9p. Complementary FISH analysis established amplification of the 9p22 approximately p24.3 region including several known genes: MLLT3 (alias AF9), JMJD2C (alias GASC1), JAK2, and SMARCA2 (alias BRM). JAK2(V617F) mutation status was quantitatively assessed by allele-specific quantitative polymerase chain reaction. Although crossing points analysis showed JAK2(V617F) mutated alleles at 52%, it is still impossible to describe conclusively the mutational status of the amplified JAK2 gene within the sole homogeneously staining region, because total genomic DNA was extracted for the analysis and not only DNA from cells with the homogeneously staining region. Gains on 9p being among the most common anomalies in PV, amplification of a gene or genes on this region may play a crucial role in the pathogenesis or evolution of PV.
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Affiliation(s)
- Catherine Hélias
- Laboratory of Hematology, Hautepierre Hospital, Avenue Molière, Strasbourg 67098, France.
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Strehl S, Nebral K, König M, Harbott J, Strobl H, Ratei R, Struski S, Bielorai B, Lessard M, Zimmermann M, Haas OA, Izraeli S. ETV6-NCOA2: a novel fusion gene in acute leukemia associated with coexpression of T-lymphoid and myeloid markers and frequent NOTCH1 mutations. Clin Cancer Res 2008; 14:977-83. [PMID: 18281529 DOI: 10.1158/1078-0432.ccr-07-4022] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [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: 11/16/2022]
Abstract
PURPOSE The ETV6 gene has been reported to be fused to a multitude of partner genes in various hematologic malignancies with 12p13 aberrations. Cytogenetic analysis of six cases of childhood acute lymphoblastic leukemia revealed a novel recurrent t(8;12)(q13;p13), suggesting involvement of ETV6. EXPERIMENTAL DESIGN Fluorescence in situ hybridization was used to confirm the involvement of ETV6 in the t(8;12)(q13;p13) and reverse transcription-PCR was used to identify the ETV6 partner gene. Detailed immunologic characterization was done, and owing to their lineage promiscuity, the leukemic blast cells were analyzed for NOTCH1 mutations. RESULTS We have identified a novel recurrent t(8;12)(q13;p13), which results in a fusion between the transcriptional repressor ETV6 (TEL) and the transcriptional coactivator NCOA2 (TIF2) in six cases of childhood leukemia expressing both T-lymphoid and myeloid antigens. The ETV6-NCOA2 transcript encodes a chimeric protein that consists of the pointed protein interaction motif of ETV6 that is fused to the COOH terminus of NCOA2, including the cyclic AMP-responsive element binding protein-binding protein (CBP) interaction and the AD2 activation domains. The absence of the reciprocal NCOA2-ETV6 transcript in one of the cases suggests that the ETV6-NCOA2 chimeric protein and not the reciprocal NCOA2-ETV6 is responsible for leukemogenesis. In addition, ETV6-NCOA2 leukemia shows a high frequency of heterozygous activating NOTCH1 mutations, which disrupt the heterodimerization or the PEST domains. CONCLUSIONS The ETV6-NCOA2 fusion may define a novel subgroup of acute leukemia with T-lymphoid and myeloid features, which is associated with a high prevalence of NOTCH1 mutations.
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Affiliation(s)
- Sabine Strehl
- Children's Cancer Research Institute, St. Anna Kinderkrebsforschung, Kinderspitalgasse 6, A-1090 Vienna, Austria.
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Lessard M, Hélias C, Struski S, Perrusson N, Uettwiller F, Mozziconacci MJ, Lafage-Pochitaloff M, Dastugue N, Terré C, Brizard F, Cornillet-Lefebvre P, Mugneret F, Barin C, Herry A, Luquet I, Desangles F, Michaux L, Verellen-Dumoulin C, Perrot C, Van den Akker J, Lespinasse J, Eclache V, Berger R. Fluorescence in situ hybridization analysis of 110 hematopoietic disorders with chromosome 5 abnormalities: do de novo and therapy-related myelodysplastic syndrome-acute myeloid leukemia actually differ? ACTA ACUST UNITED AC 2007; 176:1-21. [PMID: 17574959 DOI: 10.1016/j.cancergencyto.2007.01.013] [Citation(s) in RCA: 19] [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] [Received: 11/14/2006] [Revised: 01/17/2007] [Accepted: 01/31/2007] [Indexed: 12/19/2022]
Abstract
A retrospective cytogenetic study of acute myeloid leukemias (AML) and myelodysplastic syndromes (MDS) was conducted by the Groupe Francophone de Cytogénétique Hématologique (GFCH) to evaluate the structural abnormalities of chromosome 5 associated with other chromosomal abnormalities, in particular of chromosome 7, in these pathologies. In all, 110 cases of AML/MDS were recruited based on the presence of chromosome 5 abnormalities under conventional cytogenetics and supplemented by a systematic fluorescence in situ hybridization study of chromosomes 5 and 7. The abnormalities of the long arm of chromosome 5 (5q) were deletions of various sizes and sometimes cryptic. The 5q abnormalities were associated with translocations in 54% of cases and were simple deletions in 46%. In 68% of cases, 5q deletions were associated with chromosome 7 abnormalities, and 90% of these presented a complex karyotype. Of the 110 patients, 28 had a hematopoietic disorder secondary to chemotherapy, radiotherapy, or both. Among 82 patients with de novo AML/MDS, 63 were older than 60 years. Chromosomal abnormalities often associated hypodiploidy and chromosome 5 and 7 abnormalities in complex karyotypes, features resembling those of secondary hemopathies. Systematic investigation of the exposure to mutagens and oncogenes is thus essential to specify the factors potentially involved in MDS/AML with 5q abnormalities.
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Affiliation(s)
- M Lessard
- Laboratory of Hematology, Hautepierre Hospital, Avenue Molière, Strasbourg 67098, France.
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Gagnon N, Talbot G, Ward P, Roy D, Dupuis M, Farnworth E, Tompkins TA, Lessard M. Evaluation of bacterial diversity in the gut of piglets supplemented with probiotics using ribosomal intergenic spacer analysis. Can J Anim Sci 2007. [DOI: 10.4141/a06-065] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this study, ribosomal intergenic spacer analysis (RISA) was used to monitor changes of intestinal microbiota of piglets treated at birth with or without Pediococcus acidilactici (PA) and/or Saccharomyces cerevisiae ssp. boulardii (SCB) and weaned piglets fed with control diet supplemented with PA and/or SCB or antibiotic. During lactation, probiotics were given orally to piglets three times a week. At weaning (day 21), probiotics and the antibiotic, tiamulin, were added to the diet. Fifteen piglets per treatment were slaughtered at day 18 and day 24. The tracking of each probiotic from colonic samples was done using PCR primers specific for PA targeting the 16S rRNA gene or a specific culture medium for enumeration of SCB. The results showed the presence of probiotics in colonic samples of piglets supplemented with probiotics. Dendograms (UPGMA and Ward’s method), and non-metric multidimensional scaling analysis showed that the variability of RISA profiles in colonic microflora between individual piglets within a treatment was too high to obtain a grouping based on probiotic supplementation. Based on the relative frequency of internal transcribed spacers from RISA profiles (indicator species analysis) and diversity indices (Shannon, richness and evenness), both PA and the antibiotic treatments reduced the bacterial diversity in the gut of piglets after weaning compared with preweaning, while diversity was slightly increased postweaning compared with preweaning in control without antibiotic and SCB groups. In conclusion, all dietary additives differently affected postweaning microbial community composition; however, both antibiotic and PA reduced postweaning microbial diversity suggesting a possible benefit of PA supplementation during the postweaning transition period. Key words: Intestinal flora, piglet, PCR, probiotic, RISA profile, weaning
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Struski S, Helias C, Gervais C, Audhuy B, Zamfir A, Herbrecht R, Lessard M. 13q deletions in B-cell lymphoproliferative disorders: frequent association with translocation. ACTA ACUST UNITED AC 2007; 174:151-60. [DOI: 10.1016/j.cancergencyto.2006.12.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2006] [Revised: 12/05/2006] [Accepted: 12/12/2006] [Indexed: 11/26/2022]
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40
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Struski S, Leymarie V, Helias C, Falkenrodt A, Fohrer C, Audhuy B, Lioure B, Moskovtchenko P, Mazurier I, Galoisy AC, Gervais C, Mauvieux L, Herbrecht R, Bergerat JP, Lessard M. Étude cytologique, immunophénotypique et cytogénétique d'une série de 136 cas consécutifs d'hémopathies lymphoïdes chroniques à cellules B matures. ACTA ACUST UNITED AC 2007; 55:59-72. [PMID: 16690228 DOI: 10.1016/j.patbio.2006.04.006] [Citation(s) in RCA: 2] [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] [Received: 03/21/2006] [Accepted: 04/05/2006] [Indexed: 11/26/2022]
Abstract
A cytological, immunophenotypical and cytogenetical study of 136 chronic B-cell proliferations (93 CLL, 43 B-cell lymphomas) was led in order to precise diagnosis and to characterize and appreciate chromosomal rearrangements. In this series, mainly selected on blood lymphocytosis criteria, B-CLL were twice more frequent than small B-cell lymphomas. Probes used revealed cryptic abnormalities, which remained unknown by conventional cytogenetics (CC). The frequency of clonal abnormalities (CC and FISH) was 74.8% for this series, with 74.4% for lymphomas and 75.3% for CLL, mainly of Binet stage A (69 A, 13 B, 1 C, 10 unspecified). Proportion was 88.4% in A stages and 84.6% in B stages. In CLL, 13q14 cryptic deletions and translocations were widely majority, 14q32 translocations and trisomy 12 being predominant in lymphoma series. Interphase FISH study of non-clonal metaphasic abnormalities with locus-specific probes often revealed unrecognised clones.
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MESH Headings
- Aneuploidy
- Chromosome Aberrations
- Chromosomes, Human/genetics
- Chromosomes, Human/ultrastructure
- Chromosomes, Human, Pair 13/genetics
- Chromosomes, Human, Pair 13/ultrastructure
- Clone Cells/pathology
- Cohort Studies
- Female
- Humans
- Immunophenotyping
- In Situ Hybridization, Fluorescence
- Karyotyping
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Lymphoma, B-Cell/genetics
- Lymphoma, B-Cell/pathology
- Lymphoproliferative Disorders/genetics
- Male
- Neoplasm Staging
- Sequence Deletion
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Affiliation(s)
- S Struski
- Laboratoire d'Hématologie, Service d'Hématologie Biologique, Pôle d'Oncohématologie, Hôpital de Hautepierre, avenue Molière, 67092 Strasbourg cedex, France
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41
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Akasaka T, Balasas T, Russell LJ, Sugimoto KJ, Majid A, Walewska R, Karran EL, Brown DG, Cain K, Harder L, Gesk S, Martin-Subero JI, Atherton MG, Brüggemann M, Calasanz MJ, Davies T, Haas OA, Hagemeijer A, Kempski H, Lessard M, Lillington DM, Moore S, Nguyen-Khac F, Radford-Weiss I, Schoch C, Struski S, Talley P, Welham MJ, Worley H, Strefford JC, Harrison CJ, Siebert R, Dyer MJS. Five members of the CEBP transcription factor family are targeted by recurrent IGH translocations in B-cell precursor acute lymphoblastic leukemia (BCP-ALL). Blood 2006; 109:3451-61. [PMID: 17170124 DOI: 10.1182/blood-2006-08-041012] [Citation(s) in RCA: 150] [Impact Index Per Article: 8.3] [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: 11/20/2022] Open
Abstract
Abstract
CCAAT enhancer-binding protein (CEBP) transcription factors play pivotal roles in proliferation and differentiation, including suppression of myeloid leukemogenesis. Mutations of CEBPA are found in a subset of acute myeloid leukemia (AML) and in some cases of familial AML. Here, using cytogenetics, fluorescence in situ hybridization (FISH), and molecular cloning, we show that 5 CEBP gene family members are targeted by recurrent IGH chromosomal translocations in BCP-ALL. Ten patients with t(8;14)(q11;q32) involved CEBPD on chromosome 8, and 9 patients with t(14;19)(q32;q13) involved CEBPA, while a further patient involved CEBPG, located 71 kb telomeric of CEBPA in chromosome band 19q13; 4 patients with inv(14)(q11q32)/t(14;14)(q11;q32) involved CEBPE and 3 patients with t(14;20)(q32;q13) involved CEBPB. In 16 patients the translocation breakpoints were cloned using long-distance inverse–polymerase chain reaction (LDI-PCR). With the exception of CEBPD breakpoints, which were scattered within a 43-kb region centromeric of CEBPD, translocation breakpoints were clustered immediately 5′ or 3′ of the involved CEBP gene. Except in 1 patient with t(14;14)(q11;q32), the involved CEBP genes retained germ-line sequences. Quantitative reverse transcription (RT)–PCR showed overexpression of the translocated CEBP gene. Our findings implicate the CEBP gene family as novel oncogenes in BCP-ALL, and suggest opposing functions of CEBP dysregulation in myeloid and lymphoid leukemogenesis.
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Affiliation(s)
- Takashi Akasaka
- Toxicology Unit, Medical Research Council, University of Leicester, Lancaster Road, Leicester, UK
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42
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Cauwelier B, Cavé H, Gervais C, Lessard M, Barin C, Perot C, Van den Akker J, Mugneret F, Charrin C, Pagès MP, Grégoire MJ, Jonveaux P, Lafage-Pochitaloff M, Mozzicconacci MJ, Terré C, Luquet I, Cornillet-Lefebvre P, Laurence B, Plessis G, Lefebvre C, Leroux D, Antoine-Poirel H, Graux C, Mauvieux L, Heimann P, Chalas C, Clappier E, Verhasselt B, Benoit Y, Moerloose BD, Poppe B, Van Roy N, Keersmaecker KD, Cools J, Sigaux F, Soulier J, Hagemeijer A, Paepe AD, Dastugue N, Berger R, Speleman F. Clinical, cytogenetic and molecular characteristics of 14 T-ALL patients carrying the TCRβ-HOXA rearrangement: a study of the Groupe Francophone de Cytogénétique Hématologique. Leukemia 2006; 21:121-8. [PMID: 17039236 DOI: 10.1038/sj.leu.2404410] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [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: 11/09/2022]
Abstract
Recently, we and others described a new chromosomal rearrangement, that is, inv(7)(p15q34) and t(7;7)(p15;q34) involving the T-cell receptor beta (TCRbeta) (7q34) and the HOXA gene locus (7p15) in 5% of T-cell acute lymphoblastic leukemia (T-ALL) patients leading to transcriptional activation of especially HOXA10. To further address the clinical, immunophenotypical and molecular genetic findings of this chromosomal aberration, we studied 330 additional T-ALLs. This revealed TCRbeta-HOXA rearrangements in five additional patients, which brings the total to 14 cases in 424 patients (3.3%). Real-time quantitative PCR analysis for HOXA10 gene expression was performed in 170 T-ALL patients and detected HOXA10 overexpression in 25.2% of cases including all the cases with a TCRbeta-HOXA rearrangement (8.2%). In contrast, expression of the short HOXA10 transcript, HOXA10b, was almost exclusively found in the TCRbeta-HOXA rearranged cases, suggesting a specific role for the HOXA10b short transcript in TCRbeta-HOXA-mediated oncogenesis. Other molecular and/or cytogenetic aberrations frequently found in subtypes of T-ALL (SIL-TAL1, CALM-AF10, HOX11, HOX11L2) were not detected in the TCRbeta-HOXA rearranged cases except for deletion 9p21 and NOTCH1 activating mutations, which were present in 64 and 67%, respectively. In conclusion, this study defines TCRbeta-HOXA rearranged T-ALLs as a distinct cytogenetic subgroup by clinical, immunophenotypical and molecular genetic characteristics.
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Affiliation(s)
- B Cauwelier
- Centre for Medical Genetics, Ghent University Hospital, Ghent, Belgium
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43
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Su XY, Della-Valle V, Andre-Schmutz I, Lemercier C, Radford-Weiss I, Ballerini P, Lessard M, Lafage-Pochitaloff M, Mugneret F, Berger R, Romana SP, Bernard OA, Penard-Lacronique V. HOX11L2/TLX3 is transcriptionally activated through T-cell regulatory elements downstream of BCL11B as a result of the t(5;14)(q35;q32). Blood 2006; 108:4198-201. [PMID: 16926283 DOI: 10.1182/blood-2006-07-032953] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [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: 11/20/2022] Open
Abstract
The t(5;14)(q35;q32) chromosomal translocation is specifically observed in up to 20% of childhood T-cell acute lymphoblastic leukemia (T-ALL). It affects the BCL11B/CTIP2 locus on chromosome 14 and the RANBP17-TLX3/HOX11L2 region on chromosome 5. It leads to ectopic activation of TLX3/HOX11L2. To investigate the reasons of the association between t(5;14) and T-ALL, we isolated the translocation breakpoints in 8 t(5;14) patients. Sequence analyses did not involve recombinase activity in the genesis of the translocation. We used DNAse1 hypersensitive experiments to locate transcriptional regulatory elements downstream of BCL11B. By transient transfection experiments, 2 of the 6 regions demonstrated cis-activation properties in T cells and were also effective on the TLX3 promoter. Our data indicate that the basis of the specific association between t(5;14) and T-ALL lies on the juxtaposition of TLX3 to long-range cis-activating regions active during T-cell differentiation.
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MESH Headings
- Cell Differentiation/genetics
- Chromosomes, Human, Pair 14/genetics
- Chromosomes, Human, Pair 5/genetics
- DNA-Binding Proteins/biosynthesis
- DNA-Binding Proteins/genetics
- Homeodomain Proteins/biosynthesis
- Homeodomain Proteins/genetics
- Humans
- Jurkat Cells
- Leukemia-Lymphoma, Adult T-Cell/genetics
- Leukemia-Lymphoma, Adult T-Cell/metabolism
- Leukemia-Lymphoma, Adult T-Cell/pathology
- Oncogene Proteins/biosynthesis
- Oncogene Proteins/genetics
- Oncogene Proteins, Fusion/biosynthesis
- Oncogene Proteins, Fusion/genetics
- Promoter Regions, Genetic/genetics
- Repressor Proteins/biosynthesis
- Repressor Proteins/genetics
- T-Lymphocytes/metabolism
- T-Lymphocytes/pathology
- Transcription, Genetic
- Translocation, Genetic
- Tumor Suppressor Proteins/biosynthesis
- Tumor Suppressor Proteins/genetics
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Affiliation(s)
- Xin-Ying Su
- Institut National de la Santé et de la Recherche Médicale (INSERM), E0210, Paris, France
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Doepel L, Lessard M, Gagnon N, Lobley GE, Bernier JF, Dubreuil P, Lapierre H. Effect of Postruminal Glutamine Supplementation on Immune Response and Milk Production in Dairy Cows. J Dairy Sci 2006; 89:3107-21. [PMID: 16840628 DOI: 10.3168/jds.s0022-0302(06)72585-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Seventeen multiparous Holstein cows were used to examine the effect of an increased duodenal supply of Gln on immune function and production. Cows received continuous abomasal infusions of water (control: n = 8) or 300 g/d of Gln (n = 9) for 21 d starting within 48 h of calving. There were nonsignificant increases in milk and milk protein yields in response to Gln supplementation. Glutamine treatment had no effect on plasma glucose, nonesterified fatty acids (NEFA), or beta-hydroxybutyrate (BHBA) concentrations but did tend to increase plasma urea N concentration. The Gln treatment resulted in an increase of 108 microM in the plasma Gln concentration. Total essential AA concentrations decreased with the Gln treatment, whereas total nonessential AA concentrations were unaffected. T Lymphocyte proliferation did not differ between the control and Gln-treated cows. Treatment had no effect on the relative abundance of CD8 T cells but did increase the abundance of CD4 T cells. Cytokine production, as measured by IFN-gamma concentration determined in vitro in concanavalin-A-stimulated peripheral blood mononuclear cells, was similar between the treatments. Over the first 3 wk following calving, Gln supplementation had limited effects on milk production, metabolic parameters, and immune function.
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Affiliation(s)
- L Doepel
- Département des Sciences Animales, Université Laval, Ste-Foy, Quebec, Canada, G1K 7P4
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Chapiro E, Russell L, Radford-Weiss I, Bastard C, Lessard M, Struski S, Cave H, Fert-Ferrer S, Barin C, Maarek O, Della-Valle V, Strefford JC, Berger R, Harrison CJ, Bernard OA, Nguyen-Khac F. Overexpression of CEBPA resulting from the translocation t(14;19)(q32;q13) of human precursor B acute lymphoblastic leukemia. Blood 2006; 108:3560-3. [PMID: 16873674 DOI: 10.1182/blood-2006-03-010835] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [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: 11/20/2022] Open
Abstract
Subtle variation in the expression or function of a small group of transcription factors can drive leukemogenesis. The CEBPA protein is known to regulate the balance between cell proliferation and differentiation during early hematopoietic development and myeloid differentiation. In human myeloid leukemia, CEBPA is frequently inactivated by mutation and indirect and posttranslational mechanisms, in keeping with tumor suppressor properties. We report that CEBPA is activated by juxtaposition to the immunoglobulin gene enhancer upon its rearrangement with the immunoglobulin heavy-chain locus in precursor B-cell acute lymphoblastic leukemia harboring t(14;19)(q32;q13). Overexpression of apparently normal CEBPA RNA or protein was observed in 6 patients. These data indicate that CEBPA may exhibit oncogenic as well as tumor suppressor properties in human leukemogenesis.
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Affiliation(s)
- Elise Chapiro
- Assistance Publique-Hôpitaux de Paris (AP-HP) Service d'Hématologie Biologique, Hôpital Pitié-Salpêtrière, Paris, France
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46
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Shali W, Hélias C, Fohrer C, Struski S, Gervais C, Falkenrodt A, Leymarie V, Lioure B, Raby P, Herbrecht R, Lessard M. Cytogenetic studies of a series of 43 consecutive secondary myelodysplastic syndromes/acute myeloid leukemias: conventional cytogenetics, FISH, and multiplex FISH. ACTA ACUST UNITED AC 2006; 168:133-45. [PMID: 16843103 DOI: 10.1016/j.cancergencyto.2006.02.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [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: 09/09/2005] [Revised: 01/31/2006] [Accepted: 02/07/2006] [Indexed: 12/01/2022]
Abstract
We report a series of 43 consecutive therapy-related myelodysplastic syndromes (t-MDS) or acute myeloid leukemias (t-AML) observed for 6 years. This series consisted of 26 women and 17 men, ages ranging from 9 to 85 years. These cases were classified into three groups according to the primary diagnosis. Conventional cytogenetic and fluorescent in situ hybridization (FISH)/ multiplex FISH (M-FISH) methods were used to analyze cytogenetic characteristics of secondary MDS/AML. The features of chromosomal abnormalities were linked to the nature of the therapy and protocols used. A considerable proportion of recurrent balanced translocations characterized t-AML secondary to therapy. FISH techniques showed that conventional cytogenetics often underestimated associated translocations; some deletions were in fact derivative chromosomes associated with deletions. After treatment for lymphomas and chronic myeloproliferative diseases, there were more complex unbalanced abnormalities than the control group. Compared to other series, recurrent translocations appeared to be more numerous (25%), probably reflecting an evolution of therapeutic modalities.
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Affiliation(s)
- Wei Shali
- Laboratoire d'Hématologie, Hôpitaux Universitaires de Strasbourg, Avenue Moliére, 67098 Strasbourg, France
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47
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Goichot B, Grunebaum L, Desprez D, Vinzio S, Meyer L, Schlienger JL, Lessard M, Simon C. Circulating procoagulant microparticles in obesity. Diabetes Metab 2006; 32:82-5. [PMID: 16523191 DOI: 10.1016/s1262-3636(07)70251-3] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
AIM Obesity is a risk factor for cardiovascular diseases and venous thromboembolism. Circulating procoagulant microparticles (MP) have been described in various clinical situations associated with thrombosis and in diabetic patients. The aim of this preliminary study was to evaluate the presence of MP in obese patients without any other vascular risk factor in particular diabetes. METHODS Fifty-eight obese women <50 year-old without other cardiovascular risk factors were recruited from a single out-patient nutrition clinic. They were compared to 45 age-matched healthy normal weight controls. Main outcome was MP levels in patients and controls. Relationships between MP concentrations and parameters reflecting insulin resistance in patients were also studied. RESULTS Obese patients were 33.3 +/- 1.2 years old and had a mean BMI of 42.4 +/- 0.9 kg/m2. There vas a greater proportion of smokers in the obese group (34.5 vs 15.6%). Mean MP levels were markedly higher in obese patients compared to controls (10.6 +/- 0.5 vs 3.2 +/- 0.3 nMPSeq, P < 0.001). There was no difference in MP concentrations between smokers and non smokers. In the obese group, there was a negative correlation between MP and BMI (r = -0.265, P < 0.05) but no relationship could be established between MP concentrations and markers of insulin resistance. CONCLUSION This increase in circulating MP levels reflects cell activation and could account for the increased risk of thrombotic complications in obesity. Further studies are ongoing to explore the relationships between MP levels and coagulation markers and to assess the effect of weight reduction.
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Affiliation(s)
- B Goichot
- Service de Médecine Interne et Nutrition, Hôpital de Hautepierre, Hôpitaux Universitaires, 67098 Strasbourg Cedex, France.
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48
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Bourquin JP, Subramanian A, Langebrake C, Reinhardt D, Bernard O, Ballerini P, Baruchel A, Cavé H, Dastugue N, Hasle H, Kaspers GL, Lessard M, Michaux L, Vyas P, van Wering E, Zwaan CM, Golub TR, Orkin SH. Identification of distinct molecular phenotypes in acute megakaryoblastic leukemia by gene expression profiling. Proc Natl Acad Sci U S A 2006; 103:3339-44. [PMID: 16492768 PMCID: PMC1413912 DOI: 10.1073/pnas.0511150103] [Citation(s) in RCA: 138] [Impact Index Per Article: 7.7] [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: 11/18/2022] Open
Abstract
Individuals with Down syndrome (DS) are predisposed to develop acute megakaryoblastic leukemia (AMKL), characterized by expression of truncated GATA1 transcription factor protein (GATA1s) due to somatic mutation. The treatment outcome for DS-AMKL is more favorable than for AMKL in non-DS patients. To gain insight into gene expression differences in AMKL, we compared 24 DS and 39 non-DS AMKL samples. We found that non-DS-AMKL samples cluster in two groups, characterized by differences in expression of HOX/TALE family members. Both of these groups are distinct from DS-AMKL, independent of chromosome 21 gene expression. To explore alterations of the GATA1 transcriptome, we used cross-species comparison with genes regulated by GATA1 expression in murine erythroid precursors. Genes repressed after GATA1 induction in the murine system, most notably GATA-2, MYC, and KIT, show increased expression in DS-AMKL, suggesting that GATA1s fail to repress this class of genes. Only a subset of genes that are up-regulated upon GATA1 induction in the murine system show increased expression in DS-AMKL, including GATA1 and BACH1, a probable negative regulator of megakaryocytic differentiation located on chromosome 21. Surprisingly, expression of the chromosome 21 gene RUNX1, a known regulator of megakaryopoiesis, was not elevated in DS-AMKL. Our results identify relevant signatures for distinct AMKL entities and provide insight into gene expression changes associated with these related leukemias.
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Affiliation(s)
- Jean-Pierre Bourquin
- Department of Pediatric Oncology, Dana–Farber Cancer Institute and Children’s Hospital, Harvard Medical School, Boston, MA 02115
- Department of Pediatric Oncology, Universitäts-Kinderklinik Zurich, CH-8032 Zurich, Switzerland
| | - Aravind Subramanian
- The Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, MA 02141
| | | | - Dirk Reinhardt
- Medizinische Hochschule Hannover, D-30625 Hannover, Germany
| | - Olivier Bernard
- Institut National de la Santé et de la Recherche Médicale E0210, Hôpital Necker, F-75015 Paris, France
| | - Paola Ballerini
- Service d’Hématologie Biologique, Hôpital A Trousseau, F-75012 Paris, France
| | - André Baruchel
- Services d’Hématologie Pédiatrique et Adulte, Laboratoire Central d’Hématologie, Hôpital Saint-Louis, 75010 Paris, France
| | - Hélène Cavé
- Laboratoire de Biochimie Génétique, Hôpital Robert Debré, F-75019 Paris, France
| | - Nicole Dastugue
- Laboratoire d’Hématologie, Génétique des Hémopathies, Hôpital Purpan, F-31059 Toulouse, France
| | - Henrik Hasle
- Skejby Hospital, Aarhus University, 8200 Aarhus N, Denmark
| | - Gertjan L. Kaspers
- Department of Pediatric Hematology/Oncology, Vrije Universiteit Medical Center, 1007 MB Amsterdam, The Netherlands
- Dutch Childhood Oncology Group, The Hague, The Netherlands
| | - Michel Lessard
- Laboratoire d’Hématologie, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, F-67098 Strasbourg, France
| | | | - Paresh Vyas
- Department of Haematology, Oxford Radcliffe Hospital, Oxford OX3 9DU, United Kingdom
| | | | - Christian M. Zwaan
- Dutch Childhood Oncology Group, The Hague, The Netherlands
- Department of Pediatric Oncology, Erasmus Medical Center, 3000 CB Rotterdam, The Netherlands; and
| | - Todd R. Golub
- Department of Pediatric Oncology, Dana–Farber Cancer Institute and Children’s Hospital, Harvard Medical School, Boston, MA 02115
- The Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, MA 02141
| | - Stuart H. Orkin
- Department of Pediatric Oncology, Dana–Farber Cancer Institute and Children’s Hospital, Harvard Medical School, Boston, MA 02115
- To whom correspondence should be addressed. E-mail:
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Lessard M, Struski S, Leymarie V, Flandrin G, Lafage-Pochitaloff M, Mozziconacci MJ, Talmant P, Bastard C, Charrin C, Baranger L, Hélias C, Cornillet-Lefebvre P, Mugneret F, Cabrol C, Pagès MP, Fert-Ferret D, Nguyen-Khac F, Quilichini B, Barin C, Berger R. Cytogenetic study of 75 erythroleukemias. ACTA ACUST UNITED AC 2006; 163:113-22. [PMID: 16337853 DOI: 10.1016/j.cancergencyto.2005.05.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [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: 02/28/2005] [Revised: 04/25/2005] [Accepted: 05/09/2005] [Indexed: 10/25/2022]
Abstract
Chromosomal abnormalities of erythroleukemia (EL) are often described as complex and unspecific. A retrospective study of 75 EL defined following the WHO classification was performed by the Groupe Francophone de Cytogénétique Hématologique (GFCH) in order to reexamine the cytogenetics of this infrequent leukemia subtype. Clonal chromosomal abnormalities were found in 57 patients (76%), distributed in 4 subgroups according to their ploidy status: pseudodiploid (16%), hypodiploid (47%), hyperdiploid (19%), and 18% mixed cases associating 2 different clones (hypodiploid+hyperdiploid) or (pseudodiploid+hyperdiploid). Complex rearrangements and hypodiploid chromosome number were widely dominant (50%). Partial or entire monosomies represented 56% of abnormalities. Chromosomes 5 and 7 were the most frequently involved (41 and 33 times, respectively), followed by chromosomes 8, 16, and 21 (19 times each). Unbalanced abnormalities were more frequent than balanced. All these kinds of abnormalities were observed in de novo as well as in secondary EL. Four out of 7 cases of "pure erythroid" leukemia were associated with a BCR-ABL fusion. Lastly, no chromosome abnormality specific to EL could be established. However, the large overlap of chromosomal abnormality patterns of EL (pure erythroid form excepted) and refractory anemia with excess of blasts in transformation (RAEB-t) favors the hypothesis of similarities between these 2 hematologic disorders.
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Affiliation(s)
- M Lessard
- Laboratoire d'Hématologie, Hôpital de Hautepierre, 67000 Strasbourg, France.
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50
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Chagnon F, Bentourkia M, Lecomte R, Lessard M, Lesur O. Endotoxin-induced heart dysfunction in rats: assessment of myocardial perfusion and permeability and the role of fluid resuscitation. Crit Care Med 2006; 34:127-33. [PMID: 16374166 DOI: 10.1097/01.ccm.0000190622.02222.df] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [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
OBJECTIVE The pathophysiology of sepsis-induced myocardial dysfunction is still controversial. Whether microcirculatory hypoperfusion together with capillary leakage can occur in the heart wall also remains a matter of debate. The objective was to evaluate the impact of fluid resuscitation on endotoxin-induced myocardial dysfunction. DESIGN Adult rats were given intraperitoneal injection of endotoxin (lipopolysaccharide, Escherichia coli, 10 mg/kg) or phosphate-buffered solution, followed up by echocardiography and acetate micro-positron emission tomography scan imaging, together with final hemodynamic, biochemical, and pathologic evaluations up to 48 hrs. SETTING University laboratory. SUBJECTS Pathogen-free male Wistar rats (350 g). INTERVENTIONS Influence of isovolumic fluid infusion type (saline vs. pentastarch) on these variables was assessed in 11 groups of six animals including an unchallenged control one. MEASUREMENTS AND MAIN RESULTS Endotoxin injection induced a) myocardial dysfunction (decrease of approximately 15-20% in left ventricular ejection fraction); b) ventricular enlargement (approximately 1.5- to 1.7-fold increase in left ventricular systolic volume); c) cardiac output increase (10-15%); d) myocardial hypoperfusion ( approximately 1.5- to 2-fold decrease in acetate k1 constant rate); e) increased oxygen consumption (k2); and f) interstitial wall increase. Endotoxin injection also enhanced levels of arterial lactates and troponin I. Colloid (pentastarch) over crystalloid (saline) fluid resuscitation significantly reversed echocardiographic changes, some positron emission tomography imaging alterations, and lactate and troponin I levels without further enhancing interstitial spaces. CONCLUSION Endotoxin can induce reversible myocardial alterations with evidence of coronary hypoperfusion and heart wall enlargement/damage, some of which can be prevented by fluid resuscitation. The use of crystalloids is less beneficial than pentastarch.
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Affiliation(s)
- Frederic Chagnon
- Groupe de Recherche en Physiopathologie Respiratoire, Université de Sherbrooke, PQ, Canada
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