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Büttner S, Zöller C, Patyna S, Gradascevic A, Weiler H, Rosenberg M, Walther T, Zeiher AM, Geiger H, Vasa-Nicotera M, Hauser IA, Fichtlscherer S. Risk of graft loss in kidney transplant recipients after aortic valve replacement. Biomol Biomed 2023; 23:145-152. [PMID: 35880351 PMCID: PMC9901896 DOI: 10.17305/bjbms.2022.7720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 07/11/2022] [Indexed: 02/08/2023]
Abstract
Surgical aortic valve replacement (SAVR) in kidney transplant recipients (KTR) is associated with high morbidity and mortality, and an increased risk of postoperative graft failure potentially leading to graft loss. Transcatheter aortic valve implantation (TAVI) emerged as an alternative in high-risk patients. However, data on TAVI in kidney transplant recipients are limited. We performed a retrospective analysis of 40 KTR in which aortic valve replacement was performed at our center between 2005 and 2015. The outcomes and follow-up of TAVI (n=20; 2010-2015) and SAVR (n=20; 2005-2015) were analyzed with respect to patient and graft survival. Baseline characteristics in both groups were comparable. Hospital stay after TAVI was significantly shorter compared to SAVR (19 [11.5-21.75] days vs. 33 [21-62] days, p=0.001). Acute graft failure occurred more frequently after SAVR (45% vs. 89.5%; p=0.006). Thirty-day mortality was 10% in both groups. However, in-hospital mortality reached 25% in the SAVR group (TAVI 10%), indicating a more complicated course after surgery. Moreover, during a median follow-up time of 1928 days in TAVI patients and 2717 days in patients after SAVR, graft loss occurred only in the surgically treated group (n=7). While one-year survival after TAVR was 90% compared to 69% after SAVR, long-term follow-up showed comparable results (at 5 years: TAVI 58% vs. 52% SAVR; log-rank-test: p=0.86). In KTR, TAVI can be performed with good mid- to long-term results. Compared to SAVR, renal outcomes seem to be improved after TAVI, suggesting better graft survival.
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Affiliation(s)
- Stefan Büttner
- Medical Clinic III – Department of Nephrology, University Hospital Frankfurt, Frankfurt am Main, Germany,Medical Clinic I – Cardiology, Pneumology, Nephrology and Intensive Care Medicine, Klinikum Aschaffenburg-Alzenau, Aschaffenburg, Germany,Correspondence to Stefan Büttner:
| | - Carolin Zöller
- Medical Clinic III – Department of Nephrology, University Hospital Frankfurt, Frankfurt am Main, Germany,Medical Clinic II – Nephrology, Agaplesion Markus Krankenhaus, Frankfurt am Main, Germany,Medical Clinic III – Department of Cardiology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Sammy Patyna
- Medical Clinic III – Department of Nephrology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Anisa Gradascevic
- Medical Clinic I – Cardiology, Pneumology, Nephrology and Intensive Care Medicine, Klinikum Aschaffenburg-Alzenau, Aschaffenburg, Germany
| | - Helge Weiler
- Medical Clinic I – Cardiology, Pneumology, Nephrology and Intensive Care Medicine, Klinikum Aschaffenburg-Alzenau, Aschaffenburg, Germany
| | - Mark Rosenberg
- Medical Clinic I – Cardiology, Pneumology, Nephrology and Intensive Care Medicine, Klinikum Aschaffenburg-Alzenau, Aschaffenburg, Germany
| | - Thomas Walther
- Department of Thoracic and Cardiovascular Surgery, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Andreas M Zeiher
- Medical Clinic III – Department of Cardiology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Helmut Geiger
- Medical Clinic III – Department of Nephrology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Mariuca Vasa-Nicotera
- Medical Clinic III – Department of Cardiology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Ingeborg A Hauser
- Medical Clinic III – Department of Nephrology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Stephan Fichtlscherer
- Medical Clinic III – Department of Cardiology, University Hospital Frankfurt, Frankfurt am Main, Germany
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2
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Patyna S, Riekert K, Buettner S, Wagner A, Volk J, Weiler H, Erath-Honold JW, Geiger H, Fichtlscherer S, Honold J. Acute kidney injury after in-hospital cardiac arrest in a predominant internal medicine and cardiology patient population: incidence, risk factors, and impact on survival. Ren Fail 2021; 43:1163-1169. [PMID: 34315321 PMCID: PMC8330738 DOI: 10.1080/0886022x.2021.1956538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Introduction Prognosis of survivors from cardiac arrest is generally poor. Acute kidney injury (AKI) is a common finding in these patients. In general, AKI is well characterized as a marker of adverse outcome. In-hospital cardiac arrest (IHCA) represents a special subset of cardiac arrest scenarios with differential predisposing factors and courses after the event, compared to out-of-hospital resuscitations. Data about AKI in survivors after in-hospital cardiac arrest are scarce. Methods In this study, we retrospectively analyzed patients after IHCA for incidence and risk factors of AKI and its prognostic impact on mortality. For inclusion in the analysis, patients had to survive at least 48 h after IHCA. Results A total of 238 IHCA events with successful resuscitation and survival beyond 48 h after the initial event were recorded. Of those, 89.9% were patients of internal medicine, and 10.1% of patients from surgery, neurology or other departments. In 120/238 patients (50.4%), AKI was diagnosed. In 28 patients (23.3%), transient or permanent renal replacement therapy had to be initiated. Male gender, preexisting chronic kidney disease and a non-shockable first ECG rhythm during resuscitation were significantly associated with a higher incidence of AKI in IHCA-survivors. In-hospital mortality in survivors from IHCA without AKI was 29.7%, and 60.8% in patients after IHCA who developed AKI (p < 0.01 between groups). By multivariate analysis, AKI after IHCA persisted as an independent predictor of in-hospital mortality (HR 3.7 (95% CI 2.14–6.33, p ≤ 0.01)). Conclusion In this cohort of survivors from IHCA, AKI is a frequent finding, with adverse impact on outcome. Therefore, therapeutic strategies to prevent AKI in post-IHCA patients are warranted.
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Affiliation(s)
- Sammy Patyna
- Department of Internal Medicine III/Nephrology, University Hospital Frankfurt, Frankfurt, Germany
| | - Kirsten Riekert
- Department of Internal Medicine III/Nephrology, University Hospital Frankfurt, Frankfurt, Germany
| | - Stefan Buettner
- Department of Internal Medicine III/Nephrology, University Hospital Frankfurt, Frankfurt, Germany
| | - Anna Wagner
- Department of Internal Medicine III/Cardiology, University Hospital Frankfurt, Frankfurt, Germany
| | - Johannes Volk
- Department of Internal Medicine III/Cardiology, University Hospital Frankfurt, Frankfurt, Germany
| | - Helge Weiler
- Department of Internal Medicine III/Cardiology, University Hospital Frankfurt, Frankfurt, Germany
| | - Julia W Erath-Honold
- Department of Internal Medicine III/Cardiology, University Hospital Frankfurt, Frankfurt, Germany
| | - Helmut Geiger
- Department of Internal Medicine III/Nephrology, University Hospital Frankfurt, Frankfurt, Germany
| | - Stephan Fichtlscherer
- Department of Internal Medicine III/Cardiology, University Hospital Frankfurt, Frankfurt, Germany
| | - Jörg Honold
- Department of Internal Medicine III/Cardiology, University Hospital Frankfurt, Frankfurt, Germany
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Färber G, Bleiziffer S, Doenst T, Bon D, Böning A, Weiler H, Herrmann E, Frerker C, Beckmann A, Möllmann H, Ensminger S, Bekeredjian R, Walther T, Harringer W, Katus HA, Hamm CW, Beyersdorf F, Bauer T, Fichtlscherer S. Transcatheter or surgical aortic valve implantation in chronic dialysis patients: a German Aortic Valve Registry analysis. Clin Res Cardiol 2020; 110:357-367. [DOI: 10.1007/s00392-020-01717-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 07/22/2020] [Indexed: 12/19/2022]
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Mas-Peiro S, Seppelt PC, Weiler H, Mohr GL, Papadopoulos N, Walther T, Zeiher AM, Fichtlscherer S, Vasa-Nicotera M. A Direct Comparison of Self-Expandable Portico Versus Balloon-Expandable Sapien 3 Devices for Transcatheter Aortic Valve Replacement: A Case-Matched Cohort Study. J Invasive Cardiol 2019; 31:E199-E204. [PMID: 31257214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
OBJECTIVES Pairwise comparisons of clinical and hemodynamic outcomes with new transcatheter aortic valve replacement (TAVR) prostheses are needed to help interventionists select the most appropriate device. The self-expandable Portico valve (Abbott Vascular) was compared with the balloon-expandable Sapien 3 valve (Edwards Lifesciences) at a high-volume center in a real-world setting. METHODS All patients undergoing TAVR with a new-generation device from March 2015 to September 2017 at a single center were included. Baseline, peri-interventional, and prospective 30-day follow-up data were obtained. A nearest-neighbor propensity-score matching procedure (2:1) was used, based on age, STS score, EuroScore II, New York Heart Association (NYHA) status, and sex. Primary endpoint was 30-day all-cause mortality. Secondary endpoints included procedural results, complications according to Valve Academic Research Consortium (VARC)-2 criteria, and echocardiographic findings. RESULTS A total of 177 out of 273 patients were matched (104 Portico valves and 73 Sapien 3 valves). Procedural success rates were 99.0% vs 98.6%, respectively; P=NS). Contrast dye use (160 mL for Portico vs 120 mL for Sapien 3; P<.001) and fluoroscopy time (19.0 min for Portico vs 15.5 min for Sapien 3; P=.048) were significantly lower with the Sapien 3 device. Thirty-day mortality rate was 5.8% for the Portico group vs 4.1% for the Sapien 3 group (P=.74). Complication rates were similar between Portico and Sapien 3 groups: stroke (2.9% vs 4.1%, respectively; P=.31), major bleeding (3.8% vs 5.5%, respectively; P=.51), major vascular complications (5.8% vs 5.5%, respectively; P=.99), and pacemaker implantation (21.9% vs 17.5%, respectively; P=.55). A more-than-mild paravalvular leak was observed in 8.2% vs 4.5%, respectively (P=NS). CONCLUSIONS Short-term clinical and hemodynamic outcomes were similar with Portico and Sapien 3 prostheses; no statistically significant differences were observed in mortality and major complication rates. An individually tailored prosthesis choice is suggested.
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Affiliation(s)
- Silvia Mas-Peiro
- Department of Cardiology, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.
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Seppelt PC, Zappel J, Weiler H, Mas‐Peiró S, Papadopoulos N, Walther T, Zeiher AM, Fichtlscherer S, Vasa‐Nicotera M. Aortic valve replacement in patients with preexisting liver disease: Transfemoral approach with favorable survival. Catheter Cardiovasc Interv 2019; 95:54-64. [DOI: 10.1002/ccd.28319] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 12/31/2018] [Accepted: 04/15/2019] [Indexed: 12/13/2022]
Affiliation(s)
| | - Jessica Zappel
- Division of Cardiology, Department of Medicine IIIGoethe University Frankfurt Germany
| | - Helge Weiler
- Division of Cardiology, Department of Medicine IIIGoethe University Frankfurt Germany
| | - Silvia Mas‐Peiró
- Division of Cardiology, Department of Medicine IIIGoethe University Frankfurt Germany
| | - Nestoras Papadopoulos
- Department of Thoracic and Cardiovascular SurgeryUniversity Hospital Frankfurt Frankfurt Germany
| | - Thomas Walther
- Department of Thoracic and Cardiovascular SurgeryUniversity Hospital Frankfurt Frankfurt Germany
| | | | - Stephan Fichtlscherer
- Division of Cardiology, Department of Medicine IIIGoethe University Frankfurt Germany
| | - Mariuca Vasa‐Nicotera
- Division of Cardiology, Department of Medicine IIIGoethe University Frankfurt Germany
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6
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Lang J, Buettner S, Weiler H, Papadopoulos N, Geiger H, Hauser I, Vasa-Nicotera M, Zeiher A, Fichtlscherer S, Honold J. Comparison of interventional and surgical myocardial revascularization in kidney transplant recipients - A single-centre retrospective analysis. Int J Cardiol Heart Vasc 2018; 21:96-102. [PMID: 30426068 PMCID: PMC6224329 DOI: 10.1016/j.ijcha.2018.10.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 10/19/2018] [Accepted: 10/24/2018] [Indexed: 01/22/2023]
Abstract
Background Kidney transplant recipients (KTR) reflect a high-risk population for coronary artery disease (CAD). CAD is the most common cause for morbidity and mortality in this population. However, only few data are available on the favourable revascularization strategy for these patients as they were often excluded from studies and not mentioned in guidelines. Methods This retrospective single-centre study includes patients with a history of kidney transplantation undergoing myocardial revascularization for multivessel or left main CAD by either percutaneous coronary intervention (PCI, n = 27 patients) or coronary artery bypass grafting (CABG, n = 24 patients) at University Hospital Frankfurt, Germany, between 2005 and 2015. Results In-hospital mortality was higher in the CABG group (20.8% vs. 14.8% PCI group; p = 0.45). In Kaplan-Meier analysis, one-year-survival showed better outcome in the PCI group (85.2% vs. 75%). After four years, outcome was comparable between both strategies (PCI 66.5% vs. CABG 70.8%; log-rank p = 0.94). Acute kidney injury (AKI), classified by Acute Kidney Injury Network, was observed more frequently after CABG (58.3% vs. 18.5%; p < 0.01). After one year, graft survival was 95.7% in the PCI group and 94.1% in the CABG group. Four year follow-up showed comparable graft survival in both groups (76.8% PCI and 77.0% CABG; p = 0.78). Conclusion In this retrospective single-centre study of KTR requiring myocardial revascularization, PCI seems to be superior to CABG with regard to in-hospital mortality, acute kidney injury and one-year-survival. To optimise treatment of these high-risk patients, larger-scaled studies are urgently warranted.
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Affiliation(s)
- Jeannine Lang
- Department of Internal Medicine III, Division of Cardiology and Nephrology, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,Division of Thoracic and Cardiovascular Surgery, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Stefan Buettner
- Department of Internal Medicine III, Division of Cardiology and Nephrology, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,Division of Thoracic and Cardiovascular Surgery, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Helge Weiler
- Department of Internal Medicine III, Division of Cardiology and Nephrology, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,Division of Thoracic and Cardiovascular Surgery, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Nestoras Papadopoulos
- Department of Internal Medicine III, Division of Cardiology and Nephrology, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,Division of Thoracic and Cardiovascular Surgery, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Helmut Geiger
- Department of Internal Medicine III, Division of Cardiology and Nephrology, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,Division of Thoracic and Cardiovascular Surgery, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Ingeborg Hauser
- Department of Internal Medicine III, Division of Cardiology and Nephrology, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,Division of Thoracic and Cardiovascular Surgery, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Mariuca Vasa-Nicotera
- Department of Internal Medicine III, Division of Cardiology and Nephrology, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,Division of Thoracic and Cardiovascular Surgery, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Andreas Zeiher
- Department of Internal Medicine III, Division of Cardiology and Nephrology, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,Division of Thoracic and Cardiovascular Surgery, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Stephan Fichtlscherer
- Department of Internal Medicine III, Division of Cardiology and Nephrology, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,Division of Thoracic and Cardiovascular Surgery, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Joerg Honold
- Department of Internal Medicine III, Division of Cardiology and Nephrology, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,Division of Thoracic and Cardiovascular Surgery, University Hospital Frankfurt, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
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7
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Mas-Peiro S, Weiler H, Papadopoulos N, Zeiher AM, Fichtlscherer S, Vasa-Nicotera M. Post/preprocedural ratio of hemodynamically assessed aortic regurgitation index as a marker for the need for corrective measures during transcatheter valve replacement: A first confirmatory study in patients receiving a new generation transcatheter self-e. Catheter Cardiovasc Interv 2018; 93:532-537. [DOI: 10.1002/ccd.27847] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Accepted: 07/29/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Silvia Mas-Peiro
- Department of Cardiology; University Hospital Frankfurt am Main; Germany
| | - Helge Weiler
- Department of Cardiology; University Hospital Frankfurt am Main; Germany
| | - Nestoras Papadopoulos
- Department of Cardiothoracic Surgery; University Hospital Frankfurt am Main; Germany
| | - Andreas M. Zeiher
- Department of Cardiology; University Hospital Frankfurt am Main; Germany
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Rizzoli R, Biver E, Bonjour JP, Coxam V, Goltzman D, Kanis JA, Lappe J, Rejnmark L, Sahni S, Weaver C, Weiler H, Reginster JY. Benefits and safety of dietary protein for bone health-an expert consensus paper endorsed by the European Society for Clinical and Economical Aspects of Osteopororosis, Osteoarthritis, and Musculoskeletal Diseases and by the International Osteoporosis Foundation. Osteoporos Int 2018; 29:1933-1948. [PMID: 29740667 DOI: 10.1007/s00198-018-4534-5] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 04/12/2018] [Indexed: 01/25/2023]
Abstract
A summary of systematic reviews and meta-analyses addressing the benefits and risks of dietary protein intakes for bone health in adults suggests that dietary protein levels even above the current RDA may be beneficial in reducing bone loss and hip fracture risk, provided calcium intakes are adequate. Several systematic reviews and meta-analyses have addressed the benefits and risks of dietary protein intakes for bone health in adults. This narrative review of the literature summarizes and synthesizes recent systematic reviews and meta-analyses and highlights key messages. Adequate supplies of dietary protein are required for optimal bone growth and maintenance of healthy bone. Variation in protein intakes within the "normal" range accounts for 2-4% of BMD variance in adults. In older people with osteoporosis, higher protein intake (≥ 0.8-g/kg body weight/day, i.e., above the current RDA) is associated with higher BMD, a slower rate of bone loss, and reduced risk of hip fracture, provided that dietary calcium intakes are adequate. Intervention with dietary protein supplements attenuate age-related BMD decrease and reduce bone turnover marker levels, together with an increase in IGF-I and a decrease in PTH. There is no evidence that diet-derived acid load is deleterious for bone health. Thus, insufficient dietary protein intakes may be a more severe problem than protein excess in the elderly. Long-term, well-controlled randomized trials are required to further assess the influence of dietary protein intakes on fracture risk.
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Affiliation(s)
- R Rizzoli
- Division of Bone Diseases, Geneva University Hospitals and Faculty of Medicine, 1211, Geneva 14, Switzerland.
| | - E Biver
- Division of Bone Diseases, Geneva University Hospitals and Faculty of Medicine, 1211, Geneva 14, Switzerland
| | - J-P Bonjour
- Division of Bone Diseases, Geneva University Hospitals and Faculty of Medicine, 1211, Geneva 14, Switzerland
| | - V Coxam
- INRA, Unité de Nutrition Humaine, CRNH Auvergne, Université Clermont Auvergne, F-63000, Clermont-Ferrand, France
| | - D Goltzman
- McGill University Health Center, Montreal, Canada
| | - J A Kanis
- University of Sheffield, Sheffield, UK
- Institute for Health and Ageing, Catholic University of Australia, Melbourne, Australia
| | - J Lappe
- College of Nursing, Creighton University, Creighton, NE, USA
| | - L Rejnmark
- Aarhus University Hospital, Aarhus, Denmark
| | - S Sahni
- Hebrew SeniorLife and Harvard Medical School, Institute for Aging Research, Boston, MA, USA
| | - C Weaver
- Women's Global Health Institute, Department of Nutrition Science, Purdue University, Purdue, West Lafayette, IN, USA
| | - H Weiler
- School of Human Nutrition, McGill University, Montreal, QC, Canada
| | - J-Y Reginster
- Department of Public Health, Epidemiology and Health Economics, University of Liège, Liège, Belgium
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Seppelt PC, Zappel J, Weiler H, Papadopoulos N, Moritz A, Zeiher AM, Fichtlscherer S, Vasa-Nicotera M. P680Improved outcomes for patients with liver disease undergoing aortic valve replacement after transfemoral approach. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- P C Seppelt
- University Hospital Frankfurt, Medical Clinic III, Department of Cardiology,, Frankfurt, Germany
| | - J Zappel
- University Hospital Frankfurt, Medical Clinic III, Department of Cardiology,, Frankfurt, Germany
| | - H Weiler
- University Hospital Frankfurt, Medical Clinic III, Department of Cardiology,, Frankfurt, Germany
| | - N Papadopoulos
- University Hospital Frankfurt, Department of Thoracic and Cardiovascular Surgery, Frankfurt, Germany
| | - A Moritz
- University Hospital Frankfurt, Department of Thoracic and Cardiovascular Surgery, Frankfurt, Germany
| | - A M Zeiher
- University Hospital Frankfurt, Medical Clinic III, Department of Cardiology,, Frankfurt, Germany
| | - S Fichtlscherer
- University Hospital Frankfurt, Medical Clinic III, Department of Cardiology,, Frankfurt, Germany
| | - M Vasa-Nicotera
- University Hospital Frankfurt, Medical Clinic III, Department of Cardiology,, Frankfurt, Germany
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10
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Erath JW, Buettner S, Weiler H, Vamos M, Von Jeinsen B, Heyl S, Schalk R, Mutlak H, Zeiher AM, Fichtlscherer S, Honold J. P2733Prognostic implications of preclinical airway management with laryngeal tube (LTS-D) or endotracheal tube in out-of-hospital cardiac arrest patients. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J W Erath
- JW Goethe University, Cardiology/Electrophysiology, Frankfurt am Main, Germany
| | - S Buettner
- JW Goethe University, Nephrology, Frankfurt am Main, Germany
| | - H Weiler
- JW Goethe University, Cardiology, Frankfurt am Main, Germany
| | - M Vamos
- JW Goethe University, Cardiology/Electrophysiology, Frankfurt am Main, Germany
| | - B Von Jeinsen
- JW Goethe University, Cardiology, Frankfurt am Main, Germany
| | - S Heyl
- JW Goethe University, Cardiology, Frankfurt am Main, Germany
| | - R Schalk
- JW Goethe University, Anaesthesiology, Frankfurt am Main, Germany
| | - H Mutlak
- JW Goethe University, Anaesthesiology, Frankfurt am Main, Germany
| | - A M Zeiher
- JW Goethe University, Cardiology, Frankfurt am Main, Germany
| | - S Fichtlscherer
- JW Goethe University, Cardiology, Frankfurt am Main, Germany
| | - J Honold
- JW Goethe University, Cardiology, Frankfurt am Main, Germany
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Mas-Peiro S, Vasa-Nicotera M, Weiler H, Papadopoulos N, De Rosa R, Zeiher AM, Fichtlscherer S. Thirty-Day Outcomes in 100 Consecutive Patients Undergoing Transfemoral Aortic Valve Replacement With the Portico Valve on an All-Comer Basis. J Invasive Cardiol 2017; 29:431-436. [PMID: 29207365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVES Transcatheter heart valves such as the self-expandable Portico valve (St. Jude Medical) are being developed to overcome limitations of first-generation devices. Since clinical experience with this valve is still limited in a real-world setting, we investigated its use on an all-comer basis. METHODS Between October 2015 and October 2016, a total of 100 consecutive patients assessed for transcatheter aortic valve replacement (TAVR) and found suitable for the Portico valve were included. The primary endpoint was 30-day all-cause mortality. Secondary endpoints included immediate postprocedural survival, complications according to Valve Academic Research Consortium (VARC)-2 criteria, and echocardiographic findings. RESULTS All 100 participants received a Portico valve; the patient group included 56 women (56%) and 44 men (44%) with mean age of 81.7 ± 5.1 years. Mean EuroScore II and STS scores were 6.2 ± 8.6 and 5.2 ± 6.1, respectively. Immediate postprocedural survival rate was 99%. The 30-day mortality rate (6%) was comparable with earlier studies performed in selected patients. Complications included major stroke (2%), minor stroke (2%), major vascular complication (2%), minor vascular complication (4%), cardiac tamponade (1%), major bleeding (3%), conversion into open surgery (1%), and pacemaker implantation (19.5%). Maximal and mean echocardiographic gradients were reduced from 66 mm Hg (range, 21-141 mm Hg) to 15 mm Hg (range, 4-41 mm Hg) (P<.001) and from 44 mm Hg (range, 12-84 mm Hg) to 8 mm Hg (range, 2-25 mm Hg) (P<.001), respectively. A low rate of more-than-mild paravalvular leak was observed (4.4%). CONCLUSIONS Our immediate and 30-day post-TAVR results support favorable survival comparable to other studies, and significant clinical improvement with the Portico valve in non-selected patients in a real-world setting, with short-term complications being uncommon.
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Affiliation(s)
- Silvia Mas-Peiro
- Department of Cardiology, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.
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Baumgartner CK, Mattson JG, Weiler H, Shi Q, Montgomery RR. Targeting factor VIII expression to platelets for hemophilia A gene therapy does not induce an apparent thrombotic risk in mice. J Thromb Haemost 2017; 15:98-109. [PMID: 27496751 PMCID: PMC5280575 DOI: 10.1111/jth.13436] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 07/12/2016] [Indexed: 01/08/2023]
Abstract
Essentials Platelet-Factor (F) VIII gene therapy is a promising treatment in hemophilia A. This study aims to evaluate if platelet-FVIII expression would increase the risk for thrombosis. Targeting FVIII expression to platelets does not induce or elevate thrombosis risk. Platelets expressing FVIII are neither hyper-activated nor hyper-responsive. SUMMARY Background Targeting factor (F) VIII expression to platelets is a promising gene therapy approach for hemophilia A, and is successful even in the presence of inhibitors. It is well known that platelets play important roles not only in hemostasis, but also in thrombosis and inflammation. Objective To evaluate whether platelet-FVIII expression might increase thrombotic risk and thereby compromise the safety of this approach. Methods In this study, platelet-FVIII-expressing transgenic mice were examined either in steady-state conditions or under prothrombotic conditions induced by inflammation or the FV Leiden mutation. Native whole blood thrombin generation assay, rotational thromboelastometry analysis and ferric chloride-induced vessel injury were used to evaluate the hemostatic properties. Various parameters associated with thrombosis risk, including D-dimer, thrombin-antithrombin complexes, fibrinogen, tissue fibrin deposition, platelet activation status and activatability, and platelet-leukocyte aggregates, were assessed. Results We generated a new line of transgenic mice that expressed 30-fold higher levels of platelet-expressed FVIII than are therapeutically required to restore hemostasis in hemophilic mice. Under both steady-state conditions and prothrombotic conditions induced by lipopolysaccharide-mediated inflammation or the FV Leiden mutation, supratherapeutic levels of platelet-expressed FVIII did not appear to be thrombogenic. Furthermore, FVIII-expressing platelets were neither hyperactivated nor hyperactivatable upon agonist activation. Conclusion We conclude that, in mice, more than 30-fold higher levels of platelet-expressed FVIII than are required for therapeutic efficacy in hemophilia A are not associated with a thrombotic predilection.
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Affiliation(s)
- C K Baumgartner
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI, USA
| | - J G Mattson
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI, USA
| | - H Weiler
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI, USA
| | - Q Shi
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI, USA
- Medical College of Wisconsin, Milwaukee, WI, USA
- Children's Research Institute, Children's Hospital of Wisconsin, Milwaukee, WI, USA
- MACC Fund Research Center, Milwaukee, WI, USA
| | - R R Montgomery
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI, USA
- Medical College of Wisconsin, Milwaukee, WI, USA
- Children's Research Institute, Children's Hospital of Wisconsin, Milwaukee, WI, USA
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Büttner S, Weiler H, Zöller C, Patyna S, Honold J, Papadopoulos N, Geiger H, Hauser IA, Vasa-Nicotera M, Fichtlscherer S. TCT-677 Comparison of surgical versus interventional treatment of aortic valve stenosis in kidney transplant recipients. J Am Coll Cardiol 2016. [DOI: 10.1016/j.jacc.2016.09.090] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Büttner S, Weiler H, Zöller C, Koch B, Zierer A, Zeiher AM, Geiger H, Vasa-Nicotera M, Hauser IA, Fichtlscherer S. Aortic Valve Stenosis in a Dialysis Patient Waitlisted for Kidney Transplantation. Ann Thorac Surg 2016; 102:e437-e438. [DOI: 10.1016/j.athoracsur.2016.04.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 04/02/2016] [Accepted: 04/11/2016] [Indexed: 11/25/2022]
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Weiler H, Büttner S, Zoeller C, Luu B, Honold J, Seeger F, Zierer A, Betz C, Moritz A, Geiger H, Zeier AM, Vasa-Nicotera M, Fichtlscherer S. SP490TREATING AORTIC VALVE STENOSIS IN DIALYSIS PATIENTS - IS TRANSCATHETER AORTIC VALVE IMPLANTATION THE BETTER CHOICE. Nephrol Dial Transplant 2016. [DOI: 10.1093/ndt/gfw172.30] [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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Baumgartner CK, Zhang G, Kuether EL, Weiler H, Shi Q, Montgomery RR. Comparison of platelet-derived and plasma factor VIII efficacy using a novel native whole blood thrombin generation assay. J Thromb Haemost 2015; 13:2210-9. [PMID: 26453193 PMCID: PMC4715732 DOI: 10.1111/jth.13169] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 09/30/2015] [Indexed: 12/01/2022]
Abstract
BACKGROUND We have recently developed a successful gene therapy approach for hemophilia A in which factor VIII (FVIII) expression is targeted to platelets by the αIIb promoter. Levels of platelet-expressed FVIII (2bF8) achieved by gene therapy may vary between individuals due to differences in ex vivo transduction and gene expression efficiency. Accurate assays to evaluate 2bF8 efficacy are desirable. OBJECTIVE To compare the hemostatic efficacy of 2bF8 with replacement therapy over a wide therapeutic dose range. METHODS Efficacy of 2bF8 was assessed using a new transgenic mouse model expressing high 2bF8 levels (LV18(tg) ). Blood from LV18(tg) mice or FVIII(null) mice infused with recombinant FVIII was mixed with FVIII(null) blood at different ratios ex vivo to achieve several concentrations of 2bF8 or plasma FVIII. Samples were evaluated with a novel native whole blood thrombin generation assay that uses recalcified whole blood without the addition of tissue factor to initiate coagulation. RESULTS FVIII dose dependency was observed in all five thrombin generation parameters. While the total amount of thrombin generated was similar, 2bF8 significantly accelerated thrombin generation compared with plasma FVIII. Remarkably, a 10-fold lower dose of 2bF8 than plasma FVIII (0.2% vs. 2%) significantly shortened the onset and peak of thrombin generation compared with FVIII(null) blood. CONCLUSION Using a new transgenic mouse model, we showed that the novel native whole blood thrombin generation assay established here can be used to monitor platelet targeted FVIII gene therapy. The higher therapeutic efficacy of 2bF8 compared with factor replacement therapy seemed to be due to acceleration of thrombin generation.
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Affiliation(s)
- C K Baumgartner
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI, USA
| | - G Zhang
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI, USA
| | - E L Kuether
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI, USA
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA
| | - H Weiler
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI, USA
| | - Q Shi
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI, USA
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA
- Children's Research Institute, Children's Hospital of Wisconsin, Milwaukee, WI, USA
| | - R R Montgomery
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI, USA
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA
- Children's Research Institute, Children's Hospital of Wisconsin, Milwaukee, WI, USA
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Bening C, Weiler H, Stumpf N, Vahl CF. Is there a gender-dependent negative inotropic effect of Methylene blue on the contractile performance on the level of myofilaments? J Cardiothorac Surg 2015. [PMCID: PMC4695744 DOI: 10.1186/1749-8090-10-s1-a258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Schramke H, Roemer E, Dempsey R, Hirter J, Meurrens K, Berges A, Weiler H, Vanscheeuwijck P, Schorp M. Toxicological assessment of kretek cigarettes. Part 7: The impact of ingredients added to kretek cigarettes on inhalation toxicity. Regul Toxicol Pharmacol 2014; 70 Suppl 1:S81-9. [DOI: 10.1016/j.yrtph.2014.09.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Accepted: 09/29/2014] [Indexed: 11/17/2022]
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Yin Z, Agellon S, Lavery P, Weiler H. Dietary supplementation with long chain polyunsaturated fatty acids in pregnant guinea pigs has sex-dependent effects on growth and bone outcomes in offspring. Prostaglandins Leukot Essent Fatty Acids 2014; 91:31-8. [PMID: 24928793 DOI: 10.1016/j.plefa.2014.05.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 05/04/2014] [Accepted: 05/20/2014] [Indexed: 01/25/2023]
Abstract
Long chain PUFA enhance bone mass in non-pregnant mammals. We examined the effects of arachidonic (AA; 20:4n-6) and docosahexaenoic (DHA; 22:6n-3) acid on bone mass of mothers and neonates. Guinea pig sows (n=15) were fed control, DHA or AA+DHA diets from mating to weaning. Measurements included: osteocalcin (OC), deoxypyridinoline (DPD), areal bone mineral density (aBMD) in sows and neonates; and volumetric density (vBMD) in neonates. Only vertebral aBMD and OC:DPD ratio declined during reproduction and only DHA reduced OC:DPD. Male pup weight was reduced by DHA and female weight elevated by AA+DHA. Whole body and femur aBMD were reduced by DHA and AA+DHA; whereas tibia vBMD was reduced by DHA in males. Female whole body, tibia and vertebrae aBMD plus tibia vBMD were elevated by AA+DHA; and DHA elevated whole body, tibia and vertebrae aBMD. Dietary AA+DHA and DHA elicit sex-dependent effects on neonatal bone, with minimal impact on mothers.
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Affiliation(s)
- Z Yin
- School of Dietetics and Human Nutrition, McGill University, Macdonald Campus, Ste. Anne-de-Bellevue, Québec H9 X3V9, Canada
| | - S Agellon
- School of Dietetics and Human Nutrition, McGill University, Macdonald Campus, Ste. Anne-de-Bellevue, Québec H9 X3V9, Canada
| | - P Lavery
- School of Dietetics and Human Nutrition, McGill University, Macdonald Campus, Ste. Anne-de-Bellevue, Québec H9 X3V9, Canada
| | - H Weiler
- School of Dietetics and Human Nutrition, McGill University, Macdonald Campus, Ste. Anne-de-Bellevue, Québec H9 X3V9, Canada.
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Fatani T, Millette M, Sheehy O, Berard A, Weiler H, Sharma A, Rodd C. 168: Failure of Free, Public Vitamin D Supplementation Program for Quebec Infants – Temporal Trends and Significant Predictors. Paediatr Child Health 2014. [DOI: 10.1093/pch/19.6.e35-164] [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: 11/14/2022] Open
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Gabriel M, Weiler H, Mehlhorn U, Vahl CF. Surface modified PTFE promotes endothelial cell adhesion and simultaneously inhibits the attachment of platelets and bacteria. Thorac Cardiovasc Surg 2014. [DOI: 10.1055/s-0034-1367130] [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: 10/25/2022]
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Gabriel M, Weiler H, Mehlhorn U, Vahl CF. Combined non-thrombogenic and endothelial cell adhesive surfaces by a single step procedure. Thorac Cardiovasc Surg 2014. [DOI: 10.1055/s-0034-1367270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Bening C, Weiler H, Vahl CF. Effects of gender, ejection fraction and weight on cardiac force development in patients undergoing cardiac surgery--an experimental examination. J Cardiothorac Surg 2013; 8:214. [PMID: 24245511 PMCID: PMC3842772 DOI: 10.1186/1749-8090-8-214] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2013] [Accepted: 11/05/2013] [Indexed: 12/05/2022] Open
Abstract
Background It has long been recognized that differences exist between men and women in the impact of risc factors, symptoms, development and outcome of special diseases like the cardiovascular disease. Gender determines the cardiac baseline parameters like the number of cardiac myocyte, size and demand and may suggest differences in myofilament function among genders, which might be pronounced under pathological conditions. Does gender impact and maybe impair the contractile apparatus? Are the differences more prominent when other factors like weight, age, ejection fraction are added? Therefore we performed a study on 36 patients (21 male, 15 female) undergoing aortic valve replacement (AVR) or aortocoronary bypass operation (CABG) to examine the influence of gender, ejection fraction, surgical procedure and body mass index (BMI) on cardiac force development. Methods Tissue was obtained from the right auricle and was stored in a special solution to prevent any stretching of the fibers. We used the skinned muscle fiber model and single muscle stripes, which were mounted on the “muscle machine” and exposed to a gradual increase of calcium concentration calculated by an attached computer program. Results 1.) In general female fibers show more force than male fibers: 3.9 mN vs. 2.0 mN (p = 0.03) 2.) Female fibers undergoing AVR achieved more force than those undergoing CABG operation: 5.7 mN vs. 2.8 mN (p = 0.02) as well as male fibers with AVR showed more force values compared to those undergoing CABG: 2.0 mN vs. 0.5 mN (p = 0.01). 3.) Male and female fibers of patients with EF > 55% developed significantly more force than from those with less ejection fraction than 30%: p = 0.002 for the male fibers (1.6 vs. 2.8 mN) and p = 0.04 for the female fibers (5.7 vs. 2.8 mN). 4.) Patients with a BMI between 18 till 25 develop significant more force than those with a BMI > 30: Females 5.1 vs. 2.6 mN; p 0.03, Males 3.8 vs. 0.8 mN; p 0.04). Conclusion Our data suggest that female patients undergoing AVR or CABG develop significantly more force than male fibers. Additionally we could image the clinical impression of negative impact of overweight and obesity as well as low ejection fraction on cardiac function on level of the myofilaments and observed a reduced force capacity, which is more prominent in male fibers.
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Affiliation(s)
- Constanze Bening
- Department of Cardiothoracic and Vascular Surgery, Medical Centre of the Johannes-Gutenberg-University Mainz, Langenbeckstr,1, 55131 Mainz, Germany.
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Weiler H, Wohlhöfer M, Bening C, Abugameh A, Vahl CF. Impact of Levosimendan on cardiac performance due to antioxidative effects? Thorac Cardiovasc Surg 2013. [DOI: 10.1055/s-0032-1332655] [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: 10/27/2022]
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Bening C, Weiler H, Vahl CF. Impact of diastolic dysfunction on global contractile capacity on the level of the myofilaments. Thorac Cardiovasc Surg 2013. [DOI: 10.1055/s-0032-1332495] [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: 10/27/2022]
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Weiler H, Moeller O, Wohlhöfer M, Bening C, Vahl CF. Methylene blue and tolonium chloride impair cardiac performance in human atrial tissue. Thorac Cardiovasc Surg 2013. [DOI: 10.1055/s-0032-1332588] [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: 10/27/2022]
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Abugameh A, Weiler H, Bening C, Vahl CF. Mid- and longterm results for patients undergoing MIDCAB-procedure for LAD-single-vessel-disease. Thorac Cardiovasc Surg 2013. [DOI: 10.1055/s-0032-1332577] [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: 10/27/2022]
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Gallo S, Comeau K, Vanstone C, Sharma A, Agellon S, L'Abbé M, Khamessan A, Jones G, Weiler H, Rodd C. Redefining normal mineral and calcitropic hormone status in healthy infants. Clin Biochem 2012. [DOI: 10.1016/j.clinbiochem.2012.07.058] [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: 10/27/2022]
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Gallo S, Comeau K, Vanstone C, Agellon S, Jones G, L’Abbé M, Khamessan A, Sharma A, Rodd C, Weiler H. Supplementation with Oral Vitamin D3 (400 Iu/Day) Supports Plasma Levels of 25-Hydroxyvitamin D of 50 NMOL/L But Higher Intakes are Required to Reach 75 NMOL/L in Breastfed Infants. Paediatr Child Health 2012. [DOI: 10.1093/pch/17.suppl_a.13ab] [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: 11/12/2022] Open
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Abstract
The central effector protease of the protein C pathway, activated protein C (APC), interacts with the endothelial cell protein C receptor, with protease activated receptors (PAR), the apolipoprotein E2 receptor, and integrins to exert multiple effects on haemostasis and immune cell function. Such receptor interactions modify the activation of PC and determine the biological response to endogenous and therapeutically administered APC. This review summarizes the current knowledge about interactions of APC with cell surface-associated receptors, novel substrates such as histones and tissue factor pathway inhibitor, and their implications for the biologic function of APC in the control of coagulation and inflammation.
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Affiliation(s)
- H Weiler
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee WI 53226, USA.
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Weiler H, Conzelmann LO, Mehlhorn U, Vahl CF. A hidden guide wire after coronary angiography- four years lost in the body. Thorac Cardiovasc Surg 2012. [DOI: 10.1055/s-0031-1297884] [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: 10/14/2022]
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Abugameh A, Weiler H, Meinardus S, Conzelmann LO, Vahl CF. Comparision of flow analysis in T- Graft, Y- Graft and Omega-Graft for myocardrevascularization. Thorac Cardiovasc Surg 2012. [DOI: 10.1055/s-0031-1297704] [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: 10/14/2022]
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Weiler H, Moeller O, Wohlhoefer M, Conzelmann LO, Albers J, Vahl CF. Methylene blue reduces myocardial contractility. Thorac Cardiovasc Surg 2012. [DOI: 10.1055/s-0031-1297435] [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: 10/14/2022]
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Abugameh A, Weiler H, Post F, Vahl CF. Ascending aorta perforation following dislocation of percutaneous transcatheter aortic valve implantation (TAVI). Thorac Cardiovasc Surg 2012. [DOI: 10.1055/s-0031-1297815] [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: 10/14/2022]
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Weiler H, Moeller O, Jungbecker J, Albers J, Abugameh A, Vahl CF. The effect of the multi purpose drug tolonium chloride on myocardial contractility. Thorac Cardiovasc Surg 2012. [DOI: 10.1055/s-0031-1297864] [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: 10/14/2022]
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Haché S, Takser L, LeBellego F, Weiler H, Leduc L, Forest JC, Giguère Y, Masse A, Barbeau B, Lafond J. Alteration of calcium homeostasis in primary preeclamptic syncytiotrophoblasts: effect on calcium exchange in placenta. J Cell Mol Med 2011; 15:654-67. [PMID: 20178461 PMCID: PMC3922387 DOI: 10.1111/j.1582-4934.2010.01039.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Preeclampsia (PE) is characterized by maternal hypertension, proteinuria, oedema and, in 30% of cases, by intrauterine growth retardation. Causes are still unknown; however, epidemiological and clinical studies have suggested alterations in maternal calcium metabolism. We suggested that in PE, calcium transport by the syncytiotrophoblast (ST) is disturbed. From total placental tissues, we studied the expression of: calcium channels (TRPV5, TRPV6 [transient receptor potential vanilloid]), calcium binding proteins (CaBP-9K, CaBP-28K), plasma membrane calcium ATPase (PMCA)1,2,3,4 pumps, ATP synthase, genes implicated in Ca2+ release [inositol-1,4,5-triphosphate receptor (IP3R)1,2,3; Ryanodine receptor (RyR)1,2,3] and replenishment (SERCA1,2,3 [sarcoendoplasmic reticulum Ca2+ ATPases]) from endoplasmic reticulum, channels implicated in mitochondrial Ca2+ accumulation (VDAC1,2,3 [voltage-dependent anion channels]) and a marker of oxidative stress (hOGG1 [Human 8-oxoguanine-DNA glycosylase 1]), as well as the influence of these variations on calcium transport in primary ST cultures. The mRNA and protein levels were thereby examined by real-time PCR and Western blot analysis, respectively, in two different groups of pregnant women with similar gestational age: a normal group (n= 16) and a PE group (n= 8), diagnosed by a clinician. Our study showed a significant decrease in calcium transport by the ST cultured from preeclamptic placentas. We found a significant (P < 0.05) decrease in mRNA levels of TRPV5, TRPV6, CaBP-9K, CaBP-28K, PMCA1, PMCA4, ATP synthase, IP3R1, IP3R2, RyR1, RyR2 and RyR3 in PE group compared to normal one. We also noted a significant decrease in protein levels of TRPV5, TRPV6, CaBP-9K, CaBP-28K and PMCA1/4 in PE group. In contrast, SERCA1, SERCA2, SERCA3, VDAC3 and hOGG1 mRNA expressions were significantly increased in PE placentas. Calcium homeostasis and transport through placenta is compromised in preeclamptic pregnancies and it appears to be affected by a lack of ATP and an excess of oxidative stress.
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Affiliation(s)
- S Haché
- Biomed Research Center, Department of Biological Sciences, University of Quebec at Montreal, Quebec, Canada
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Stolle K, Lietz M, Steffen Y, Weiler H, Möhring M, Berges A, Lebrun S. 335 THE APOE−/− MOUSE AS A CIGARETTE SMOKE-RESPONSIVE ATHEROSCLEROSIS MODEL SHOWING REVERSIBILITY UPON SMOKING CESSATION. ATHEROSCLEROSIS SUPP 2011. [DOI: 10.1016/s1567-5688(11)70336-1] [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: 11/25/2022]
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Kruger M, Coetzee M, Haag M, Weiler H. Long-chain polyunsaturated fatty acids: Selected mechanisms of action on bone. Prog Lipid Res 2010; 49:438-49. [DOI: 10.1016/j.plipres.2010.06.002] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2010] [Indexed: 01/11/2023]
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Rodd C, Jean-Philippe S, Vanstone C, Weiler H. Comparison of Parent-Perceived Acceptance of Two Vitamin D Supplementation Modalities in Newborn in fants. Paediatr Child Health 2010. [DOI: 10.1093/pch/15.suppl_a.68ab] [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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Abstract
Activated protein C (aPC) is the key effector protease of the natural protein C anticoagulant pathway and exerts anticoagulant, as well as anti-inflammatory activity. This dual mode of action has been thought to underlie the therapeutic efficacy of recombinant aPC in the treatment of patients suffering from severe forms of sepsis. The development and characterization of recombinant variants of aPC with altered bioactivity profiles has generated an opportunity to test this concept by dissecting the roles of aPC's anticoagulant and cell-signaling functions in the treatment of sepsis. Animal studies suggest that aPC variants with near-normal signaling function, but with greatly diminished anticoagulant potential may exhibit a substantially improved risk-to-benefit ratio in sepsis therapy.
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Affiliation(s)
- H Weiler
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, Wisconsin 534226, USA.
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Mosesson MW, Cooley BC, Hernandez I, Diorio JP, Weiler H. Thrombosis risk modification in transgenic mice containing the human fibrinogen thrombin-binding gamma' chain sequence. J Thromb Haemost 2009; 7:102-10. [PMID: 18983496 DOI: 10.1111/j.1538-7836.2008.03213.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [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: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVES Thrombin binding activity in murine fibrin (Antithrombin I) is restricted to its E domains inasmuch as murine gamma' chains (mu-gamma') do not bind thrombin. This feature prompted us to produce a 'gain-of-function' transgenic mouse in which the wild-type (WT) C-terminal mu-gamma' chain fibrinogen sequence had been replaced with the C-terminal thrombin-binding human gamma' sequence. RESULTS This procedure resulted in a murine fibrinogen species containing chimeric hu-gamma' chains (hu-gamma' fibrinogen). As anticipated, thrombin bound to WT fibrin at a single class of sites, whereas thrombin binding to heterodimeric hu-gamma'-containing fibrin was increased, reflecting its content of hu-gamma' chains. In an electrolytically-induced femoral vein thrombosis injury model, we found no differences in the volume of thrombus generation between WT and heterozygous hu-gamma' mice. However, heterozygous factor (F) V Leiden (FVL(+/-)) mice developed greater thrombus volumes than did WT controls (P < 0.01). In doubly heterozygous FVL(+/-), hu-gamma' mice, thrombus formation was reduced to WT levels (P < 0.05). CONCLUSIONS Murine hu-gamma' fibrinogen down-regulates venous thrombosis in the presence of another known thrombosis risk factor, FV Leiden. This finding indicates that hu-gamma' chain-containing fibrinogen is a thrombosis risk modifier.
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Affiliation(s)
- M W Mosesson
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI 53201-2178, USA.
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Weiler H, Von Bülow V. Detection of different macrophage‐activating factor and interferon activities in supernatants of chicken lymphocyte cultures1. Avian Pathol 2008; 16:439-52. [DOI: 10.1080/03079458708436394] [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] [Indexed: 01/05/2023]
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Maroney SA, Cooley BC, Sood R, Weiler H, Mast AE. Combined tissue factor pathway inhibitor and thrombomodulin deficiency produces an augmented hypercoagulable state with tissue-specific fibrin deposition. J Thromb Haemost 2008; 6:111-7. [PMID: 17973652 PMCID: PMC3646640 DOI: 10.1111/j.1538-7836.2007.02817.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVE Tissue factor pathway inhibitor (TFPI) and thrombomodulin (TM) are endothelial-associated anticoagulant proteins thought to control hemostasis in specific vascular beds. Here, we have examined the consequences of TFPI deficiency in the presence of a compounding procoagulant state caused by reduced TM function. METHODS AND RESULTS TFPI(+/-)/TM(pro/pro) mice are born at less than expected frequency in either TFPI(+/-)/TM(pro/+) or TM(pro/pro) mothers but are born at near the expected frequency in TM(pro/+) mothers. Adult TFPI(+/-)/TM(pro/pro) mice have elevated thrombin-antithrombin complex and increased thrombus volume in an electrical injury model of venous thrombosis. In striking contrast to mice with single deficiency of TFPI or TM, TFPI(+/-)/TM(pro/pro) mice exhibit augmented fibrin deposition not only in the liver, but also in the cerebral microvasculature. CONCLUSIONS TFPI(+/-)/TM(pro/pro) mice exhibit partial intrauterine lethality when carried by mothers with an underlying prothrombotic state, providing the first experimental evidence in an animal model that TFPI-dependent control of hemostasis in the vascular bed of the placenta fulfills a critical role for successful pregnancy outcome. In addition to the placenta, partial TFPI deficiency interacts with decreased TM function in an organ selective manner to produce fibrin deposition in other specific vascular beds, the liver and brain.
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Affiliation(s)
- S A Maroney
- Blood Research Institute, Blood Center of Wisconsin, Milwaukee, WI 53201-2178, USA
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Isermann B, Blautzik J, Vinnikov I, Herzog S, Weiler H, Bierhaus A, Nawroth P. THE THROMBOMODULIN PROTEIN C SYSTEM PROTECTS AGAINST DIABETIC NEUROPATHY VIA TWO INDEPENDENT MECHANISMS. J Thromb Haemost 2007. [DOI: 10.1111/j.1538-7836.2007.tb00998.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Farmer C, Petit HV, Weiler H, Capuco AV. Effects of dietary supplementation with flax during prepuberty on fatty acid profile, mammogenesis, and bone resorption in gilts1,2. J Anim Sci 2007; 85:1675-86. [PMID: 17400971 DOI: 10.2527/jas.2007-0022] [Citation(s) in RCA: 15] [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] [Indexed: 11/13/2022] Open
Abstract
The possible role of dietary flax on pre-pubertal development of mammary glands and bone resorption was investigated in gilts. Fifty-seven gilts were fed 1 of 4 diets from 88 d of age until slaughter (d 212 +/- 1). Diets were control without flax (n = 14); 10% flaxseed supplementation (n = 13); 6.5% flaxseed meal supplementation (n = 15); and 3.5% flaxseed oil supplementation (n = 15). All diets were isonitrogenous and isocaloric. Jugular blood samples were obtained on d 78 and 210 to establish the fatty acid profile and to determine the concentrations of prolactin, estradiol, and cross-linked N-telopeptides of type I collagen. At slaughter, the mammary glands were excised, parenchymal and extraparenchymal tissues were dissected, and the composition of the parenchymal tissue (protein, fat, DM, and DNA) was determined. Histochemical analyses of the mammary parenchyma were performed, and fatty acid profiles in the extraparenchymal tissue were evaluated. Dietary flax increased (P < or = 0.001) the concentrations of PUFA and decreased those of SFA (P < 0.01) and MUFA (P < or = 0.001) in plasma and extraparenchymal tissues, which was largely due to the inclusion of 10% flaxseed or 3.5% flaxseed oil (P < or = 0.01) but not 6.5% flaxseed meal. Circulating concentrations of prolactin and estradiol were unaltered by treatments (P > 0.1), but concentrations of cross-linked N-telopeptides of type I collagen tended to be greater (P < 0.1) in flax-supplemented gilts. The DM content of parenchymal tissue was the only mammary compositional value affected, showing an increase with flax addition (P < 0.05). No change (P > or = 0.1) in the bromodeoxyuridine labeling index or estrogen receptor localization was observed with treatments. Dietary supplementation with flax as seed, meal, or oil, therefore, brought about the expected changes in the fatty acid profile but had no beneficial effects on mammary development or bone resorption.
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Affiliation(s)
- C Farmer
- Agriculture and Agri-Food Canada, Dairy and Swine R & D Centre, Lennoxville Stn., Sherbrooke, QC, Canada.
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Weiler H. Endothelial protein C receptor: location...with a pool! J Thromb Haemost 2007; 5:1391-3. [PMID: 17456191 DOI: 10.1111/j.1538-7836.2007.02599.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- H Weiler
- Blood Center of Wisconsin, Blood Research Institute, Milwaukee, WI, USA.
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Isermann B, Blautzik J, Vinnikov I, Herzog S, Weiler H, Linn T, Bierhaus A, Nawroth PP. Das endotheliale Thrombomodulin Protein C System schützt vor der diabetischen Neuropathie durch zwei unabhängige Mechanismen. DIABETOL STOFFWECHS 2007. [DOI: 10.1055/s-2007-982115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Sood R, Weiler H. 1A.1 Animal model of fetal loss in factor V Leiden carriers: pathogenic mechanism and therapeutic targets. Thromb Res 2007. [DOI: 10.1016/s0049-3848(07)70002-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Opapeju FO, Nyachoti CM, House JD, Weiler H, Sapirstein HD. Growth performance and carcass characteristics of pigs fed short-season corn hybrids1. J Anim Sci 2006; 84:2779-86. [PMID: 16971579 DOI: 10.2527/jas.2005-353] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
An experiment was conducted to determine growth performance, carcass characteristics, and fat quality of growing-finishing pigs fed diets based on short-season corn hybrids. Twenty-four individually housed, Cotswold, growing pigs with an initial BW of 41.4 (SD = 1.4) kg were blocked by BW and sex and randomly allotted from within block to 1 of 3 diets to give 8 replicate pigs per diet. Experimental diets consisted of a control based on barley and 2 diets based on corn as the main energy sources. A 3-phase feeding program for 20 to 50 kg (phase I), 50 to 80 kg (phase II), and 80 to 110 kg (phase III) of BW was used. Diets for each phase contained approximately 3.5 Mcal/kg of DE, with total lysine of 0.95, 0.75, and 0.64% in phase I, II, and III diets, respectively. Average daily gain, ADFI, and G:F were monitored weekly during each phase. Pigs were slaughtered after reaching a minimum BW of 100 kg to determine carcass characteristics. There were no effects of diet on ADG, ADFI, and G:F (0.45 +/- 0.02, 0.34 +/- 0.02, and 0.31 +/- 0.02 for phase I, II, and III, respectively). Carcass length, dressing percent, LM area, loin depth, backfat thickness, belly firmness, and L*, b*, and a* fat color were not different across dietary treatments. Pigs fed one corn variety had no differences in fatty acid profile with barley-fed pigs, whereas those fed the other variety of corn had a greater (P < 0.05) concentration of PUFA in their backfat. The results indicate that growth performance, carcass characteristics, and fat quality of pigs fed diets based on short-season corn hybrids and those fed the barley-based diet were not different.
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Affiliation(s)
- F O Opapeju
- Department of Animal Science, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2
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