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Chalabi N, Coxam V, Satih S, Davicco MJ, Lebecque P, Fontana L, Bignon YJ, Bernard-Gallon DJ. Gene signature of rat mammary glands: Influence of lifelong soy isoflavones consumption. Mol Med Rep 2012; 3:75-81. [PMID: 21472203 DOI: 10.3892/mmr_00000221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Epidemiological studies have indicated that phytoestrogen has a preventive effect on breast cancer development. However, controversial results have been reported suggesting these compounds have ambivalent effects on breast tissue. Here, we report a transgenerational study conducted on female Wistar rats fed a diet enriched with phytoestrogen. Using a pangenomic microarray approach, a transcriptomic study was performed on mammary glands extracted from the animals. Gene expression was examined at 3 ages: 3, 18 and 24 months. The F1 generation did not express the same genes as the F0 control generation fed the same diet. This effect increased with animal age: in 3-, 18- and 24-month-old rats, 293, 441 and 2868 differentially expressed genes were respectively observed. These results suggest that long-term exposure to isoflavones may play a key role in gene regulation. Additionally, epigenetic patterns were found to be affected by DNA-methyltransferase and histone-deacetylase expression.
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Noel S, Dhooghe B, Lethuillier A, Huaux F, Lebecque P, Wallemacq P, Leal T. WS9.3 Contribution of the Th17 pathway in lung inflammatory response in F508del-CFTR mice. J Cyst Fibros 2012. [DOI: 10.1016/s1569-1993(12)60062-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Bouckaert C, Noel S, Palem A, Lebecque P, Wallemacq P, Leal T. 41 Corrector effect of resveratrol on refractory adrenergic pathway in saliva secretion of cystic fibrosis mice. J Cyst Fibros 2012. [DOI: 10.1016/s1569-1993(12)60210-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Dhooghe B, Noel S, Bouzin C, Lebecque P, Wallemacq P, Leal T. 36 Vardenafil corrects chloride transport across F508del-CFTR intestinal mucosa. J Cyst Fibros 2012. [DOI: 10.1016/s1569-1993(12)60205-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Bauwens N, Aubriot A, Drugman T, Dutoit T, Leal T, Lebecque P. 164 Assessment of a commercially available cough counter in healthy subjects. J Cyst Fibros 2012. [DOI: 10.1016/s1569-1993(12)60334-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Leonard A, Vermeulen F, De Boeck K, Leal T, Lebecque P. 50 Nasal potential measurements: repeatability and reproducibility of TCS in patients homozygous for the F508del mutation and healthy controls. J Cyst Fibros 2012. [DOI: 10.1016/s1569-1993(12)60219-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Wauquier F, Barquissau V, Léotoing L, Davicco MJ, Lebecque P, Mercier S, Philippe C, Miot-Noirault E, Chardigny JM, Morio B, Wittrant Y, Coxam V. Borage and fish oils lifelong supplementation decreases inflammation and improves bone health in a murine model of senile osteoporosis. Bone 2012; 50:553-61. [PMID: 21664309 DOI: 10.1016/j.bone.2011.05.030] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2011] [Revised: 04/29/2011] [Accepted: 05/26/2011] [Indexed: 11/19/2022]
Abstract
Fats are prevalent in western diets; they have known deleterious effects on muscle insulin resistance and may contribute to bone loss. However, relationships between fatty acids and locomotor system dysfunctions in elderly population remain controversial. The aim of this study was to analyze the impact of fatty acid quality on the age related evolution of the locomotor system and to understand which aging mechanisms are involved. In order to analyze age related complications, the SAMP8 mouse strain was chosen as a progeria model as compared to the SAMR1 control strain. Then, two months old mice were divided in different groups and subjected to the following diets : (1) standard "growth" diet - (2) "sunflower" diet (high ω6/ω3 ratio) - (3) "borage" diet (high γ-linolenic acid) - (4) "fish" diet (high in long chain ω3). Mice were fed ad libitum through the whole protocol. At 12 months old, the mice were sacrificed and tissues were harvested for bone studies, fat and muscle mass measures, inflammation parameters and bone cell marker expression. We demonstrated for the first time that borage and fish diets restored inflammation and bone parameters using an original model of senile osteoporosis that mimics clinical features of aging in humans. Therefore, our study strongly encourages nutritional approaches as relevant and promising strategies for preventing aged-related locomotor dysfunctions.
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Reychler G, Coppens T, Leonard A, Palem A, Lebecque P. Mucoviscidose : les techniques instrumentales de désencombrement des voies aériennes. Rev Mal Respir 2012; 29:128-37. [DOI: 10.1016/j.rmr.2011.11.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2010] [Accepted: 04/19/2011] [Indexed: 10/14/2022]
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Thomas M, Vermeulen F, De Baets F, Desager K, De Wachter E, Knoop C, Lebecque P, Sacré JP, Cuppens H, De Boeck K. 41* Who should be analyzed in a cystic fibrosis registry? J Cyst Fibros 2011. [DOI: 10.1016/s1569-1993(11)60061-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Palem A, Bouckaert C, Dhooghe B, Leonard A, Lubamba B, Wallemacq P, Lebecque P, Leal T. 63 Resveratrol improves chloride secretion in cystic fibrosis mice homozygous for the F508del mutation. J Cyst Fibros 2011. [DOI: 10.1016/s1569-1993(11)60082-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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36
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Leonard A, Steisel C, Aubriot AS, Godding V, Lebecque P. 193 Cystic fibrosis (CF) and non-CF bronchiectasis: a cross-sectional comparison. J Cyst Fibros 2011. [DOI: 10.1016/s1569-1993(11)60209-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lubamba B, Panin N, Lebacq J, Huaux F, Lebecque P, Wallemacq P, Leal T. 70 Vardenafil as anti-inflammatory drug in the treatment of cystic fibrosis lung disease. J Cyst Fibros 2011. [DOI: 10.1016/s1569-1993(11)60088-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lebecque P, Pepermans X, Marchand E, Leonard A, Leal T. ABPA in adulthood: a CFTR-related disorder. Thorax 2010; 66:540-1. [DOI: 10.1136/thx.2010.145862] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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39
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Lubamba B, Lebacq J, Reychler G, Marbaix E, Wallemacq P, Lebecque P, Leal T. Inhaled phosphodiesterase type 5 inhibitors restore chloride transport in cystic fibrosis mice. Eur Respir J 2010; 37:72-8. [DOI: 10.1183/09031936.00013510] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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40
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Leonard A, Huang D, Symoens F, Lebecque P. Clinical relevance of Exophiala dermatitidis in cystic fibrosis: a case study. J Cyst Fibros 2010. [DOI: 10.1016/s1569-1993(10)60205-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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41
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Boeras A, Symoens F, Leonard A, Lebecque P. Isolation of Exophiala dermatitidis in cystic fibrosis: is ECA the optimal medium? J Cyst Fibros 2010. [DOI: 10.1016/s1569-1993(10)60136-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Symoens F, Leonard A, Gigi J, Reychler G, Leal T, Lebecque P. Exophiala dermatitidis: can it chronically colonize and infect airways of patients with CF? J Cyst Fibros 2010. [DOI: 10.1016/s1569-1993(10)60137-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Mardon J, Trzeciakiewicz A, Habauzit V, Davicco MJ, Lebecque P, Mercier S, Tressol JC, Horcajada MN, Demigné C, Coxam V. Dietary protein supplementation increases peak bone mass acquisition in energy-restricted growing rats. Pediatr Res 2009; 66:513-8. [PMID: 19668107 DOI: 10.1203/pdr.0b013e3181b9b4bb] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Peak bone mass is a major determinant of osteoporosis pathogenesis during aging. Respective influences of energy and protein supplies on skeletal growth remains unclear. We investigated the effect of a 5-mo dietary restriction on bone status in young rats randomized into six groups (n = 10 per group). Control animals were fed a diet containing a normal (13%) (C-NP) or a high-protein content (26%) (C-HP). The other groups received a 40% protein energy-restricted diet (PER-NP and PER-HP) or a 40% energy-restricted diet (ER-NP and ER-HP). High-protein intake did not modulate bone acquisition, although a metabolic acidosis was induced and calcium retention impaired. PER and ER diets were associated with a decrease in femoral bone mineral density. The compensation for protein intake in energy-restricted conditions induced a bone sparing effect. Plasma osteocalcin (OC) and urinary deoxypyridinoline (DPD) assays revealed a decreased OC/DPD ratio in restricted rats compared with C animals, which was far more reduced in PER than in ER groups. Circulating IGF-1 levels were lowered by dietary restrictions. In conclusion, both energy and protein deficiencies may contribute to impairment in peak bone mass acquisition, which may affect skeleton strength and potentially render individuals more susceptible to osteoporosis.
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Wustefeld F, Pirotte T, Veyckemans F, Reychler G, Leonard A, Hubaux V, Lebecque P. Peripherally Inserted Central Catheter (PICC) for home IV therapy: a Belgian CF center experience. J Cyst Fibros 2009. [DOI: 10.1016/s1569-1993(09)60365-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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45
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Leonard A, Reychler G, Leal T, Lebecque P. FEV1 rate of decline in CF patients: towards zero overa8years period. J Cyst Fibros 2009. [DOI: 10.1016/s1569-1993(09)60242-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Trzeciakiewicz A, Habauzit V, Mercier S, Lebecque P, Davicco MJ, Coxam V, Demigne C, Horcajada MN. Hesperetin stimulates differentiation of primary rat osteoblasts involving the BMP signalling pathway. J Nutr Biochem 2009; 21:424-31. [PMID: 19427185 DOI: 10.1016/j.jnutbio.2009.01.017] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2008] [Revised: 01/15/2009] [Accepted: 01/26/2009] [Indexed: 12/11/2022]
Abstract
Hesperidin found in citrus fruits has been reported to be a promising bioactive compound for maintaining an optimal bone status in ovariectomized rodent models. In this study, we examined the capacity of hesperetin (Hp) to affect the proliferation, differentiation and mineralization of rodent primary osteoblasts. Then, the impact of Hp on signalling pathways known to be implicated in bone formation was explored. We exposed osteoblasts to physiological concentrations of 1 microM Hp (Hp1) and 10 microM Hp (Hp10). Neither proliferation nor mineralization was affected by Hp at either dose during 19 days of exposure. Hp at both doses enhanced differentiation by significantly increasing alkaline phosphatase (ALP) activity from Day 14 of exposure (Day 19: Hp1: +9%, Hp10: +14.8% vs. control; P<.05). However, Hp did not induce an obvious formation of calcium nodules. The effect of Hp10 on ALP was inhibited by addition of noggin protein, suggesting a possible action of this flavanone through the bone morphogenetic protein (BMP) pathway. Indeed, Hp10 significantly induced (1.2- to 1.4-fold) mRNA expression of genes involved in this signalling pathway (i.e., BMP2, BMP4, Runx2 and Osterix) after 48 h of exposure. This was strengthened by enhanced phosphorylation of the complex Smad1/5/8. Osteocalcin mRNA level was up-regulated by Hp only at 10 microM (2.2 fold vs. control). The same dose of Hp significantly decreased osteopontin (OPN) protein level (50% vs. control) after 14 days of culture. Our findings suggest that Hp may regulate osteoblast differentiation through BMP signalling and may influence the mineralization process by modulating OPN expression.
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Goubau C, Wilschanski M, Skalicka V, Lebecque P, Southern KW, Sermet I, Munck A, Derichs N, Middleton PG, Hjelte L, Padoan R, Vasar M, De Boeck K. Phenotypic characterisation of patients with intermediate sweat chloride values: towards validation of the European diagnostic algorithm for cystic fibrosis. Thorax 2009; 64:683-91. [DOI: 10.1136/thx.2008.104752] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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48
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Puel C, Mardon J, Agalias A, Davicco MJ, Lebecque P, Mazur A, Horcajada MN, Skaltsounis AL, Coxam V. Major phenolic compounds in olive oil modulate bone loss in an ovariectomy/inflammation experimental model. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:9417-22. [PMID: 18800805 DOI: 10.1021/jf801794q] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
This study was conducted to determine whether the daily consumption for 84 days of tyrosol and hydroxytyrosol, the main olive oil phenolic compounds, and olive oil mill wastewater (OMWW), a byproduct of olive oil production, rich in micronutrients, may improve bone loss in ovariectomized rats (an experimental model of postmenopausal osteoporosis) and in ovariectomized rats with granulomatosis inflammation (a model set up for senile osteoporosis). As expected, an induced chronic inflammation provoked further bone loss at total, metaphyseal, and diaphyseal sites in ovariectomized rats. Tyrosol and hydroxytyrosol prevented this osteopenia by increasing bone formation ( p < 0.05), probably because of their antioxidant properties. The two doses of OMWW extracts had the same protective effect on bone ( p < 0.05), whereas OMWW did not reverse established osteopenia. In conclusion, polyphenol consumption seems to be an interesting way to prevent bone loss.
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Azad A, Rauh R, Korbmacher J, Stanke F, Nuytten H, Tümmler B, De Boeck K, Dupont L, Fichou Y, Ferec C, Girodon E, Lebecque P, Skalicka V, des Georges M, Claustres M, Hjelte L, de Monestrol I, Stuhrmann M, Schwartz M, Pressler T, Castellani C, Schwarz M, Cassiman J, Korbmacher C, Cuppens H. ENaC mutations in patients with CF-like disease. J Cyst Fibros 2008. [DOI: 10.1016/s1569-1993(08)60003-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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50
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Penninckx B, Malfroot A, Knoop C, De Boeck K, Dupont L, De Baets F, Desager K, Lebecque P, Leclercq-Foucart J, Casimir G. A Belgian survey of long-term TOBI® treatment in cystic fibrosis patients. J Cyst Fibros 2008. [DOI: 10.1016/s1569-1993(08)60255-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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