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Issa M, Michaudel C, Guinot M, Grauso-Culetto M, Guillon B, Lecardonnel J, Jouneau L, Chapuis C, Bernard H, Hazebrouck S, Castelli F, Fenaille F, Gaultier E, Rivière G, Houdeau E, Adel-Patient K. Long-term exposure from perinatal life to food-grade TiO 2 alters intestinal homeostasis and predisposes to food allergy in young mice. Allergy 2024; 79:471-484. [PMID: 38010857 DOI: 10.1111/all.15960] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/24/2023] [Accepted: 10/31/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND Food allergy (FA) is an inappropriate immunological response to food proteins resulting from an impaired induction of oral tolerance. Various early environmental factors can affect the establishment of intestinal homeostasis, predisposing to FA in early life. In this context, we aimed to assess the effect of chronic perinatal exposure to food-grade titanium dioxide (fg-TiO2 ), a common food additive. METHODS Dams were fed a control versus fg-TiO2 -enriched diet from preconception to weaning, and their progeny received the same diet at weaning. A comprehensive analysis of baseline intestinal and systemic homeostasis was performed in offspring 1 week after weaning by assessing gut barrier maturation and microbiota composition, and local and systemic immune system and metabolome. The effect of fg-TiO2 on the susceptibility of progeny to develop oral tolerance versus FA to cow's milk proteins (CMP) was performed starting at the same baseline time-point, using established models. Sensitization to CMP was investigated by measuring β-lactoglobulin and casein-specific IgG1 and IgE antibodies, and elicitation of the allergic reaction by measuring mouse mast cell protease (mMCP1) in plasma collected after an oral food challenge. RESULTS Perinatal exposure to fg-TiO2 at realistic human doses led to an increased propensity to develop FA and an impaired induction of oral tolerance only in young males, which could be related to global baseline alterations in intestinal barrier, gut microbiota composition, local and systemic immunity, and metabolism. CONCLUSIONS Long-term perinatal exposure to fg-TiO2 alters intestinal homeostasis establishment and predisposes to food allergy, with a clear gender effect.
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Affiliation(s)
- Mohammad Issa
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI/Laboratoire d'Immuno-Allergie Alimentaire, Gif-sur-Yvette, France
| | - Chloé Michaudel
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI/Laboratoire d'Immuno-Allergie Alimentaire, Gif-sur-Yvette, France
| | - Marine Guinot
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI/Laboratoire d'Immuno-Allergie Alimentaire, Gif-sur-Yvette, France
| | - Marta Grauso-Culetto
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI/Laboratoire d'Immuno-Allergie Alimentaire, Gif-sur-Yvette, France
| | - Blanche Guillon
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI/Laboratoire d'Immuno-Allergie Alimentaire, Gif-sur-Yvette, France
| | - Jérôme Lecardonnel
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, Jouy-en-Josas, France
| | - Luc Jouneau
- Université Paris-Saclay, INRAE, UVSQ, VIM, Jouy-en-Josas, France
| | - Céline Chapuis
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI/Laboratoire d'Immuno-Allergie Alimentaire, Gif-sur-Yvette, France
| | - Hervé Bernard
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI/Laboratoire d'Immuno-Allergie Alimentaire, Gif-sur-Yvette, France
| | - Stephane Hazebrouck
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI/Laboratoire d'Immuno-Allergie Alimentaire, Gif-sur-Yvette, France
| | - Florence Castelli
- Université Paris-Saclay, CEA, INRAE - UMR Médicaments et Technologies pour la Santé (DMTS), Laboratoire d'Innovation en Spectrométrie de Masse, Saclay, France
| | - François Fenaille
- Université Paris-Saclay, CEA, INRAE - UMR Médicaments et Technologies pour la Santé (DMTS), Laboratoire d'Innovation en Spectrométrie de Masse, Saclay, France
| | - Eric Gaultier
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Gilles Rivière
- Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES), Direction de l'Evaluation des Risques, Maisons-Alfort, France
| | - Eric Houdeau
- Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Karine Adel-Patient
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI/Laboratoire d'Immuno-Allergie Alimentaire, Gif-sur-Yvette, France
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Achour J, Guinot M, Guillon B, Kapel R, Galet O, Adel‐Patient K, Hazebrouck S, Bernard H. Sensitization Potency of Sunflower Seed Protein in a Mouse Model: Identification of 2S-Albumins More Allergenic Than SFA-8. Mol Nutr Food Res 2021; 65:e2100369. [PMID: 34331387 PMCID: PMC9285957 DOI: 10.1002/mnfr.202100369] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 07/23/2021] [Indexed: 11/12/2022]
Abstract
SCOPE Food allergy to sunflower seed (SFS) protein is not frequent and only non-specific lipid transfert protein (nsLTP) Hel a 3 is officially recognized as a food allergen. Out of the eleven seed storage 2S-albumins (SESA) detected in SFS, only SFA-8 allergenicity has been investigated so far. The study aimed then to evaluate SFS protein allergenicity and particularly, to compare the sensitization potency of SESA in a mouse model. METHODS AND RESULTS The most abundant SESA and nsLTP were isolated from SFS through a combination of chromatographic methods. Purified proteins were then used to measure specific IgG1 and IgE responses in BALB/c mice orally sensitized to different SFS protein isolates. The study, thus, confirmed the allergenicity of SFA-8 and Hel a 3 but mice were also highly sensitized to other SESA such as SESA2-1 or SESA20-2. Furthermore, competitive inhibition of IgE-binding revealed that SFA-8 IgE-reactivity was due to cross-reactivity with other SESA. 11S-globulins were weakly immunogenic and were rapidly degraded in an in vitro model of gastroduodenal digestion. In contrast, Hel a 3, SESA2-1 and SFA-8 were more resistant to proteolysis and gastroduodenal digestion did not affect their IgE-reactivity. CONCLUSIONS SESA2-1 or SESA20-2 were more potent allergens than SFA-8 in this mouse model. Allergenicity of SESA must be now confirmed in SFS-allergic patients.
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Affiliation(s)
- Jihana Achour
- CEAINRAEDépartement Médicaments et Technologies pour la Santé (DMTS)/Service de Pharmacologie et d'ImmunoanalyseUniversité Paris‐SaclayGif‐sur‐YvetteFrance
| | - Marine Guinot
- CEAINRAEDépartement Médicaments et Technologies pour la Santé (DMTS)/Service de Pharmacologie et d'ImmunoanalyseUniversité Paris‐SaclayGif‐sur‐YvetteFrance
| | - Blanche Guillon
- CEAINRAEDépartement Médicaments et Technologies pour la Santé (DMTS)/Service de Pharmacologie et d'ImmunoanalyseUniversité Paris‐SaclayGif‐sur‐YvetteFrance
| | - Romain Kapel
- Laboratoire Réactions et Génie des ProcédésCNRSLRGPUniversité de LorraineNancyFrance
| | | | - Karine Adel‐Patient
- CEAINRAEDépartement Médicaments et Technologies pour la Santé (DMTS)/Service de Pharmacologie et d'ImmunoanalyseUniversité Paris‐SaclayGif‐sur‐YvetteFrance
| | - Stéphane Hazebrouck
- CEAINRAEDépartement Médicaments et Technologies pour la Santé (DMTS)/Service de Pharmacologie et d'ImmunoanalyseUniversité Paris‐SaclayGif‐sur‐YvetteFrance
| | - Hervé Bernard
- CEAINRAEDépartement Médicaments et Technologies pour la Santé (DMTS)/Service de Pharmacologie et d'ImmunoanalyseUniversité Paris‐SaclayGif‐sur‐YvetteFrance
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Rousseau-Ralliard D, Richard C, Hoarau P, Lallemand MS, Morillon L, Aubrière MC, Valentino SA, Dahirel M, Guinot M, Fournier N, Morin G, Mourier E, Camous S, Slama R, Cassee FR, Couturier-Tarrade A, Chavatte-Palmer P. Prenatal air pollution exposure to diesel exhaust induces cardiometabolic disorders in adulthood in a sex-specific manner. Environ Res 2021; 200:111690. [PMID: 34273365 DOI: 10.1016/j.envres.2021.111690] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 07/09/2021] [Accepted: 07/11/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Results from observational and experimental studies indicate that exposure to air pollutants during gestation reduces birth weight, whereas little is known on potential cardiometabolic consequences for the offspring at adulthood. OBJECTIVES Our aim was to evaluate the long-term effects of gestational exposure to diesel engine exhaust (DE) on adult offspring phenotype in a rabbit model. METHODS The protocol was designed to mimic human exposure in large European cities. Females rabbits were exposed to diluted (1 mg/m3) DE (exposed, n = 9) or clean air (controls, n = 7), from 3 days after mating, 2 h/d and 5 d/wk in a nose-only inhalation system throughout gestation (gestation days 3-27). After birth and weaning, 72 offspring (47 exposed and 25 controls) were raised until adulthood (7.5 months) to evaluate their cardio-metabolic status, including the monitoring of body weight and food intake, fasting biochemistry, body composition (iDXA), cardiovascular parameters and glucose tolerance. After a metabolic challenge (high fat diet in males and gestation in females), animals were euthanized for postmortem phenotyping. RESULTS Sex-specific responses to maternal exposure were observed in adult offspring. Age-related increases in blood pressure (p = 0.058), glycaemia (p = 0.029), and perirenal fat mass (p = 0.026) as well as reductions in HDL-cholesterol (p = 0.025) and fat-to-body weight ratio (p = 0.011) were observed in exposed males, suggesting a metabolic syndrome. Almost only trends were observed in exposed females with higher triglycerides and decreased bone density compared to control females. Metabolic challenges triggered or amplified some biological responses, especially in females. CONCLUSIONS In utero exposure to air pollution predisposed rabbit offspring to cardiometabolic disorders in a sex-specific manner.
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Affiliation(s)
- Delphine Rousseau-Ralliard
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France; Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France.
| | - Christophe Richard
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France; MIMA2 Platform, INRAE, 78350, Jouy-en-Josas, France
| | - Pauline Hoarau
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
| | | | - Lucie Morillon
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
| | - Marie-Christine Aubrière
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France; Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France
| | - Sarah A Valentino
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France; Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France
| | - Michèle Dahirel
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France; Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France
| | - Marine Guinot
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
| | - Natalie Fournier
- Lip(Sys)2 - EA 7357, Athérosclérose et macrophages: impact des phospholipides et des fonctions mitochondriales sur l'efflux du cholestérol, Université Paris Saclay, UFR de Pharmacie, 92290, Châtenay-Malabry, France; Laboratoire de Biochimie, AP-HP (Assistance Publique-Hôpitaux de Paris), Hôpital Européen Georges Pompidou, 75015, Paris, France
| | - Gwendoline Morin
- Université Paris-Saclay, INRAE, UE SAAJ, 78350, Jouy en Josas, France
| | - Eve Mourier
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
| | - Sylvaine Camous
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
| | - Rémy Slama
- Inserm and Univ. Grenoble Alpes, U823, IAB Research Center, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, 38700, Grenoble, France
| | - Flemming R Cassee
- Centre for Sustainability, Environment and Health, National Institute for Public Health and the Environment, Bilthoven, Netherlands; Institute of Risk Assessment Sciences, Utrecht University, Utrecht, Netherlands
| | - Anne Couturier-Tarrade
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France; Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France
| | - Pascale Chavatte-Palmer
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France; Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France; MIMA2 Platform, INRAE, 78350, Jouy-en-Josas, France
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Adel-Patient K, Guinot M, Guillon B, Bernard H, Chikhi A, Hazebrouck S, Junot C. Administration of Extensive Hydrolysates From Caseins and Lactobacillus rhamnosus GG Probiotic Does Not Prevent Cow's Milk Proteins Allergy in a Mouse Model. Front Immunol 2020; 11:1700. [PMID: 33042105 PMCID: PMC7516991 DOI: 10.3389/fimmu.2020.01700] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 02/19/2020] [Accepted: 06/25/2020] [Indexed: 11/18/2022] Open
Abstract
Background Early nutrition may influence the development of food allergies later in life. In the absence of breastfeeding, hydrolysates from cow’s milk proteins (CMP) were indicated as a prevention strategy in at risk infants, but their proof of effectiveness in clinical and pre-clinical studies is still insufficient. Thanks to a validated mouse model, we then assessed specific and nonspecific preventive effects of administration of extensive hydrolysates from caseins (eHC) on the development of food allergy to CMP. The additional nonspecific effect of the probiotic Lactobacillus GG (LGG), commonly used in infant formula, was also assessed. Methods Groups of young BALB/cByJ female mice were pretreated by repeated gavage either with PBS (control mice), or with PBS solution containing non-hydrolyzed milk protein isolate (MPI), eHC or eHC+LGG (eq. of 10 mg of protein/gavage). All mice were then experimentally sensitized to CMP by gavage with whole CM mixed with the Th2 mucosal adjuvant Cholera toxin. All mice were further chronically exposed to cow’s milk. A group of mice was kept naïve. Sensitization to both caseins and to the non-related whey protein β-lactoglobulin (BLG) was evaluated by measuring specific antibodies in plasma and specific ex vivo Th2/Th1/Th17 cytokine secretion. Elicitation of the allergic reaction was assessed by measuring mMCP1 in plasma obtained after oral food challenge (OFC) with CMP. Th/Treg cell frequencies in gut-associated lymphoid tissue and spleen were analyzed by flow cytometry at the end of the protocol. Robust statistical procedure combining non-supervised and supervised multivariate analyses and univariate analyses, was conducted to reveal any effect of the pretreatments. Results PBS pretreated mice were efficiently sensitized and demonstrated elicitation of allergic reaction after OFC, whereas mice pretreated with MPI were durably protected from allergy to CMP. eHC+/-LGG pretreatments had no protective effect on sensitization to casein (specific) or BLG (non-specific), nor on CMP-induced allergic reactions. Surprisingly, eHC+LGG mice demonstrated significantly enhanced humoral and cellular immune responses after sensitization with CMP. Only some subtle changes were evidenced by flow cytometry. Conclusion Neither specific nor nonspecific preventive effects of administration of casein-derived peptides on the development of CMP food allergy were evidenced in our experimental setup. Further studies should be conducted to delineate the mechanisms involved in the immunostimulatory potential of LGG and to clarify its significance in clinical use.
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Affiliation(s)
- Karine Adel-Patient
- Service de Pharmacologie et d'Immunoanalyse, Département Médicaments et Technologies pour la Santé (DMTS), CEA, INRAE, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Marine Guinot
- Service de Pharmacologie et d'Immunoanalyse, Département Médicaments et Technologies pour la Santé (DMTS), CEA, INRAE, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Blanche Guillon
- Service de Pharmacologie et d'Immunoanalyse, Département Médicaments et Technologies pour la Santé (DMTS), CEA, INRAE, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Hervé Bernard
- Service de Pharmacologie et d'Immunoanalyse, Département Médicaments et Technologies pour la Santé (DMTS), CEA, INRAE, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Amina Chikhi
- Service de Pharmacologie et d'Immunoanalyse, Département Médicaments et Technologies pour la Santé (DMTS), CEA, INRAE, Université Paris-Saclay, Gif-sur-Yvette, France.,Laboratoire de Physiologie de la Nutrition et de Sécurité Alimentaire, Université d'Oran 1 Ahmed Ben Bella, Oran, Algeria
| | - Stéphane Hazebrouck
- Service de Pharmacologie et d'Immunoanalyse, Département Médicaments et Technologies pour la Santé (DMTS), CEA, INRAE, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Christophe Junot
- Service de Pharmacologie et d'Immunoanalyse, Département Médicaments et Technologies pour la Santé (DMTS), CEA, INRAE, Université Paris-Saclay, Gif-sur-Yvette, France
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5
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Rousselet M, Guérineau B, Paruit MC, Guinot M, Lise S, Destrube B, Ruffio-Thery S, Dominguez N, Brisseau-Gimenez S, Dubois V, Mora C, Trolonge S, Lambert S, Grall-Bronnec M, Prétagut S. Disordered eating in French high-level athletes: association with type of sport, doping behavior, and psychological features. Eat Weight Disord 2017; 22:61-68. [PMID: 27838862 DOI: 10.1007/s40519-016-0342-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 10/25/2016] [Indexed: 01/10/2023] Open
Abstract
PURPOSE Over the last few years, disordered eating in athletes has received increasing attention. According to several studies, athletes could be more vulnerable to disordered eating and some characteristics specific to the athletic community could be in favour of an increased risk of poor body image and disturbed eating habits in athletes. However, the literature is sparse and some methodological issues in studies have been pointed out. In this context, we aimed at determining the prevalence of disordered eating in French high-level athletes using clinical interviews of three different clinicians and identifying what are the factors associated with disordered eating in athletes. METHODS In France, all athletes registered on the French high-level list have to undergo a yearly evaluation. Data collected during the somatic assessment, the dietary consultation, and the psychological of the yearly evaluation were used. Multivariate analysis was performed for identification of factors associated with disordered eating. RESULTS Out of the 340 athletes included, 32.9% have been detected with a disordered eating. They were difficult to detect by clinicians, as usual criteria did not seem to be reliable for athletes. Competing in sports emphasizing leanness or low body weight was associated with disordered eating; however, gender was not. CONCLUSION These results highlight the need for the development of specific screening tools for high-level athletes. Furthermore, the identification of factors associated with disordered eating could improve early detection and prevention program effectiveness.
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Affiliation(s)
- M Rousselet
- Clinical Investigation Unit BALANCED "BehaviorAL AddictioNs and ComplEx Mood Disorders", Addictology and Psychiatry Department, Nantes University Hospital, Pavillon Louis PhilippeHôpital Saint Jacques, rue Saint Jacques, 85, 44093, Nantes Cedex 1, France. .,EA 4275 SPHERE "BioStatistics, Pharmacoepidemiology and Human SciEnces Research tEam"Nantes University, 44000, Nantes, France.
| | - B Guérineau
- Clinical Investigation Unit BALANCED "BehaviorAL AddictioNs and ComplEx Mood Disorders", Addictology and Psychiatry Department, Nantes University Hospital, Pavillon Louis PhilippeHôpital Saint Jacques, rue Saint Jacques, 85, 44093, Nantes Cedex 1, France.,Medical Units of Prevention Doping of Pays de La Loire, Nantes University Hospital, 44000, Nantes, France
| | - M C Paruit
- Regional Institute of Sport Medicine, Nantes University Hospital, 44093, Nantes, France
| | - M Guinot
- Medical Units of Prevention Doping of Rhône-Alpes, Grenoble University Hospital, 38000, Grenoble, France.,Inserm U 1042, Hypoxy and Pathophysiology Lab, Grenoble University, 38000, Grenoble, France
| | - S Lise
- Medical Assesment Department, CREPS Bordeaux, 33300, Talence, France
| | - B Destrube
- Regional Institute of Sport Medicine, Nantes University Hospital, 44093, Nantes, France
| | - S Ruffio-Thery
- Medical Units of Prevention Doping of Rhône-Alpes, Grenoble University Hospital, 38000, Grenoble, France
| | - N Dominguez
- Center for Support and Prevention of Athletes, Bordeaux University Hospital, 33000, Bordeaux Cedex, France.,Medical Units of Prevention Doping of Aquitaine, Bordeaux University Hospital, 33000, Bordeaux Cedex, France
| | - S Brisseau-Gimenez
- Center for Support and Prevention of Athletes, Bordeaux University Hospital, 33000, Bordeaux Cedex, France.,Medical Units of Prevention Doping of Aquitaine, Bordeaux University Hospital, 33000, Bordeaux Cedex, France
| | - V Dubois
- Regional Institute of Sport Medicine, Nantes University Hospital, 44093, Nantes, France
| | - C Mora
- Medical Units of Prevention Doping of Rhône-Alpes, Grenoble University Hospital, 38000, Grenoble, France
| | - S Trolonge
- Center for Support and Prevention of Athletes, Bordeaux University Hospital, 33000, Bordeaux Cedex, France
| | - S Lambert
- Clinical Investigation Unit BALANCED "BehaviorAL AddictioNs and ComplEx Mood Disorders", Addictology and Psychiatry Department, Nantes University Hospital, Pavillon Louis PhilippeHôpital Saint Jacques, rue Saint Jacques, 85, 44093, Nantes Cedex 1, France
| | - M Grall-Bronnec
- Clinical Investigation Unit BALANCED "BehaviorAL AddictioNs and ComplEx Mood Disorders", Addictology and Psychiatry Department, Nantes University Hospital, Pavillon Louis PhilippeHôpital Saint Jacques, rue Saint Jacques, 85, 44093, Nantes Cedex 1, France.,EA 4275 SPHERE "BioStatistics, Pharmacoepidemiology and Human SciEnces Research tEam"Nantes University, 44000, Nantes, France
| | - S Prétagut
- Clinical Investigation Unit BALANCED "BehaviorAL AddictioNs and ComplEx Mood Disorders", Addictology and Psychiatry Department, Nantes University Hospital, Pavillon Louis PhilippeHôpital Saint Jacques, rue Saint Jacques, 85, 44093, Nantes Cedex 1, France.,Medical Units of Prevention Doping of Pays de La Loire, Nantes University Hospital, 44000, Nantes, France
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Valentino S, Duranthon V, Tarrade A, Rousseau-Ralliard, Mourier E, Richard C, Aioun J, Daniel N, Archilla C, Peynot N, Fournier N, Guinot M, Jolivet G, Levy R, Bourdon M, Torres-Rovira L, Jouneau L, Charlier M, Boere J, Agier L, Slama R, Cassee F, Chavatte-Palmer P. Reproductive effects of gestational exposure to diesel exhaust in a rabbit model. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.07.100] [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: 10/20/2022]
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Valentino SA, Tarrade A, Aïoun J, Mourier E, Richard C, Dahirel M, Rousseau-Ralliard D, Fournier N, Aubrière MC, Lallemand MS, Camous S, Guinot M, Charlier M, Aujean E, Adhami HA, Fokkens PH, Agier L, Boere JA, Cassee FR, Slama R, Chavatte-Palmer P. Maternal exposure to diesel exhaust alters placental function and induces intergenerational effects in rabbits. Reprod Toxicol 2016. [DOI: 10.1016/j.reprotox.2016.06.054] [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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Valentino SA, Tarrade A, Aioun J, Mourier E, Richard C, Dahirel M, Rousseau-Ralliard D, Fournier N, Aubrière MC, Lallemand MS, Camous S, Guinot M, Charlier M, Aujean E, Al Adhami H, Fokkens PH, Agier L, Boere JA, Cassee FR, Slama R, Chavatte-Palmer P. Maternal exposure to diluted diesel engine exhaust alters placental function and induces intergenerational effects in rabbits. Part Fibre Toxicol 2016; 13:39. [PMID: 27460165 PMCID: PMC4962477 DOI: 10.1186/s12989-016-0151-7] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 07/19/2016] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Airborne pollution is a rising concern in urban areas. Epidemiological studies in humans and animal experiments using rodent models indicate that gestational exposure to airborne pollution, in particular diesel engine exhaust (DE), reduces birth weight, but effects depend on exposure duration, gestational window and nanoparticle (NP) concentration. Our aim was to evaluate the effects of gestational exposure to diluted DE on feto-placental development in a rabbit model. Pregnant females were exposed to diluted (1 mg/m(3)), filtered DE (NP diameter ≈ 69 nm) or clean air (controls) for 2 h/day, 5 days/week by nose-only exposure (total exposure: 20 days in a 31-day gestation). RESULTS DE exposure induced early signs of growth retardation at mid gestation with decreased head length (p = 0.04) and umbilical pulse (p = 0.018). Near term, fetal head length (p = 0.029) and plasma insulin and IGF1 concentrations (p = 0.05 and p = 0.019) were reduced. Placental function was also affected, with reduced placental efficiency (fetal/placental weight) (p = 0.049), decreased placental blood flow (p = 0.009) and fetal vessel volume (p = 0.002). Non-aggregated and "fingerprint" NP were observed at various locations, in maternal blood space, in trophoblastic cells and in the fetal blood, demonstrating transplacental transfer. Adult female offspring were bred with control males. Although fetoplacental biometry was not affected near term, second generation fetal metabolism was modified by grand-dam exposure with decreased plasma cholesterol (p = 0.008) and increased triglyceride concentrations (p = 0.015). CONCLUSIONS Repeated daily gestational exposure to DE at levels close to urban pollution can affect feto-placental development in the first and second generation.
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Affiliation(s)
- Sarah A. Valentino
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
- PremUp Foundation, Paris, France
| | - Anne Tarrade
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
- PremUp Foundation, Paris, France
| | - Josiane Aioun
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
- PremUp Foundation, Paris, France
| | - Eve Mourier
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
- PremUp Foundation, Paris, France
| | - Christophe Richard
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
- PremUp Foundation, Paris, France
| | - Michèle Dahirel
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
- PremUp Foundation, Paris, France
| | - Delphine Rousseau-Ralliard
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
- PremUp Foundation, Paris, France
| | - Natalie Fournier
- UFR de Pharmacie, Univ Paris-Sud, EA 4041/4529 Lip (Sys), Châtenay-Malabry, France
- Hôpital Européen Georges Pompidou (AP-HP), Laboratoire de Biochimie, UF Cardio-Vasculaire, Paris, France
| | - Marie-Christine Aubrière
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
- PremUp Foundation, Paris, France
| | - Marie-Sylvie Lallemand
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
- PremUp Foundation, Paris, France
| | - Sylvaine Camous
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
- PremUp Foundation, Paris, France
| | - Marine Guinot
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
- PremUp Foundation, Paris, France
| | - Madia Charlier
- INRA, UMR1313 Génétique Animale et Biologie Intégrative, Jouy en Josas, France
| | - Etienne Aujean
- INRA, UMR1313 Génétique Animale et Biologie Intégrative, Jouy en Josas, France
| | - Hala Al Adhami
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
- PremUp Foundation, Paris, France
| | - Paul H. Fokkens
- Centre for Sustainability, Environment and Health, National Institute for Public Health and the Environment, Bilthoven, Netherlands
| | - Lydiane Agier
- Inserm and Univ. Grenoble Alpes, U823, IAB Research Center, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, Grenoble, France
| | - John A. Boere
- Centre for Sustainability, Environment and Health, National Institute for Public Health and the Environment, Bilthoven, Netherlands
| | - Flemming R. Cassee
- Centre for Sustainability, Environment and Health, National Institute for Public Health and the Environment, Bilthoven, Netherlands
- Institute of Risk Assessment Sciences, Utrecht University, Utrecht, Netherlands
| | - Rémy Slama
- Inserm and Univ. Grenoble Alpes, U823, IAB Research Center, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, Grenoble, France
| | - Pascale Chavatte-Palmer
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
- PremUp Foundation, Paris, France
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Leti T, Guinot M, Favre-Juvin A, Bricout VA. Difference of catecholamine responses to exercise in men with trisomy 21, with or without chronotropic incompetence. Physiol Behav 2015; 142:97-103. [PMID: 25660758 DOI: 10.1016/j.physbeh.2015.02.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 01/13/2015] [Revised: 01/30/2015] [Accepted: 02/03/2015] [Indexed: 10/24/2022]
Abstract
OBJECTIVE Our purpose was to analyse if catecholamine responses to exercise would be different in Down syndrome (DS) with or without chronotropic incompetence. RESEARCH DESIGN AND METHODS Twenty five men with DS (mean age 22.2 ± 3.2) and twenty six controls (CONT, mean age 22.5 ± 1.4) participated in the study, and are divided into 3 groups: CONT, DS with chronotropic incompetence (DS+) and DS without chronotropic incompetence (DS-). During two treadmill incremental tests, blood samples were collected for the determination of hormonal and metabolic variables. RESULTS Ten out of 25 DS had chronotropic incompetence whereas no CONT. At rest, compared to CONT, despite similar physical activity, DS with chronotropic incompetence had significantly higher subcutaneous fat mass (p<0.001), lower epinephrine concentration (p<0.01), and higher leptin (p<0.01) and insulin concentrations (p<0.05). At peak exercise, all DS had lower heart rate, oxygen uptake and blood lactate concentrations than controls (p<0.001). During a 'Submaximal incremental test', DS with chronotropic incompetence had lower HR and lactate values (p<0.001) compared to CONT and DS without chronotropic incompetence (p<0.01). They also had blunted epinephrine and impaired norepinephrine responses to exercise compared to DS without chronotropic incompetence and CONT (p<0.01 and p<0.05 respectively). CONCLUSIONS Our results indicate that catecholamine adaptations to exercise are not adequate in DS+ and are associated with exercise intolerance. Thus, this endocrine profile at rest and during exercise may limit endurance performance of DS.
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Affiliation(s)
- T Leti
- Univ. Grenoble Alpes, HP2, F-38000 Grenoble, France; INSERM U1042, HP2, F-38000 Grenoble, France
| | - M Guinot
- INSERM U1042, HP2, F-38000 Grenoble, France; CHU de Grenoble, Cardiovascular & Thoracic Unit; Sports & Pathologies, F-38000 Grenoble, France
| | - A Favre-Juvin
- CHU de Grenoble, Cardiovascular & Thoracic Unit; Sports & Pathologies, F-38000 Grenoble, France
| | - V-A Bricout
- Univ. Grenoble Alpes, HP2, F-38000 Grenoble, France; INSERM U1042, HP2, F-38000 Grenoble, France; CHU de Grenoble, Cardiovascular & Thoracic Unit; Sports & Pathologies, F-38000 Grenoble, France.
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Decorte N, Lamalle L, Carlier P, Giacomini E, Guinot M, Levy P, Verges S, Wuyam B. Impact of salbutamol on muscle metabolism assessed by31P NMR spectroscopy. Scand J Med Sci Sports 2014; 25:e267-73. [DOI: 10.1111/sms.12312] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/22/2014] [Indexed: 11/30/2022]
Affiliation(s)
- N. Decorte
- HP2 Laboratory; Grenoble-Alpes University; Grenoble France
- U1042; INSERM; Grenoble France
| | - L. Lamalle
- HP2 Laboratory; Grenoble-Alpes University; Grenoble France
- INSERM US017; CNRS; UMS 3552; IRMaGe; CHU Grenoble; Grenoble France
| | - P.G. Carlier
- Institute of Myology; NMR Laboratory Paris France
- CEA; I BM; MIRCen; NMR Laboratory; Paris France
| | - E. Giacomini
- Institute of Myology; NMR Laboratory Paris France
- CEA; I BM; MIRCen; NMR Laboratory; Paris France
| | - M. Guinot
- HP2 Laboratory; Grenoble-Alpes University; Grenoble France
- U1042; INSERM; Grenoble France
- Institute for Doping Prevention; Grenoble France
| | - P. Levy
- HP2 Laboratory; Grenoble-Alpes University; Grenoble France
- U1042; INSERM; Grenoble France
| | - S. Verges
- HP2 Laboratory; Grenoble-Alpes University; Grenoble France
- U1042; INSERM; Grenoble France
| | - B. Wuyam
- HP2 Laboratory; Grenoble-Alpes University; Grenoble France
- U1042; INSERM; Grenoble France
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Metral M, Guinot M, Bresciani JP, Luyat M, Roulin JL, Guerraz M. Bimanual coordination with three hands: is the mirror hand of any help? Neuropsychologia 2013; 52:11-8. [PMID: 24215820 DOI: 10.1016/j.neuropsychologia.2013.10.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [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: 06/14/2013] [Revised: 10/24/2013] [Accepted: 10/31/2013] [Indexed: 11/15/2022]
Abstract
The mirror paradigm has been used extensively both as a research tool for studying kinesthesia in healthy individuals and as a therapeutic tool for improving recovery and/or alleviating symptoms in patients. The present study of healthy participants assessed the contribution of the mirror paradigm to motor control in a bimanual coordination task performed under sensorimotor disturbance conditions. In Experiment 1, the participants were required to produce symmetrical circles with both hands/arms at the same time. In Experiment 2, the task consisted of synchronous extension-flexion movements of both arms in the sagittal plane. These tasks were performed under four different visual conditions: (i) mirror vision (i.e. with the non-dominant arm reflected in a mirror--the third hand--and the dominant arm hidden), (ii) full vision (i.e. both arms visible), (iii) with only the non-dominant arm visible and (iv) with the eyes closed. In Experiments 1 and 2, sensorimotor disturbance was applied to the participant's dominant arm by co-vibrating antagonistic muscles (the biceps and the triceps). In the complex circle drawing task, bimanual performance was better in the mirror condition than when participants saw their non-dominant arm only. However, motor performance in the mirror vision condition was little better than in the eyes closed condition, regardless of whether or not sensorimotor disturbance was applied. In Experiment 2, there were no differences between the "eyes closed" and "mirror vision" conditions. Although mirror reflection of one arm has been shown to induce consistent, vivid, perceptual illusions (kinesthetic illusion), our results suggest that it is less effective in modulating motor behavior.
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Affiliation(s)
- Morgane Metral
- Laboratory of Psychology and Neurocognition, UMR 5105 CNRS, University of Savoie, BP 1104, F-7301, Chambéry cedex, France; Laboratory of Functional Neurosciences and Pathologies, EA 4559, Department of Psychology, University of Lille 3, Villeneuve d'Ascq, France
| | - Marine Guinot
- Department of Psychology, University of Savoie, Chambéry, France
| | - Jean-Pierre Bresciani
- Laboratory of Psychology and Neurocognition, UMR 5105 CNRS, University of Savoie, BP 1104, F-7301, Chambéry cedex, France; Department of Medicine, University of Friburg, Fribourg, Switzerland
| | - Marion Luyat
- Laboratory of Functional Neurosciences and Pathologies, EA 4559, Department of Psychology, University of Lille 3, Villeneuve d'Ascq, France
| | - Jean-Luc Roulin
- Laboratory of Psychology and Neurocognition, UMR 5105 CNRS, University of Savoie, BP 1104, F-7301, Chambéry cedex, France
| | - Michel Guerraz
- Laboratory of Psychology and Neurocognition, UMR 5105 CNRS, University of Savoie, BP 1104, F-7301, Chambéry cedex, France.
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Wolf J, Clouet AM, Golse B, Guinot M, Chiland C. Transmen as fathers thanks to DSI: a 12 year follow-up study of their children. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.1551] [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: 10/26/2022]
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Vaillant J, Clavel P, Auvinet B, Guinot M, Martinez S, Juvin R. Short-time and long-time effects of rehabilitation exercise training on functional balance tests and gait markers in patients with fibromyalgia. Ann Phys Rehabil Med 2011. [DOI: 10.1016/j.rehab.2011.07.825] [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: 11/15/2022]
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Vaillant J, Clavel P, Auvinet B, Guinot M, Martinez S, Juvin R. Effets à court et long-terme d’un réentraînement à l’effort chez des sujets fibromyalgiques : modifications des performances à des tests fonctionnels d’équilibre et des paramètres de la marche. Ann Phys Rehabil Med 2011. [DOI: 10.1016/j.rehab.2011.07.816] [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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Vaillant J, Guinot M, Auvinet B, Zerbib L, Dumolard A, Wuyam B, Favre-Juvin A, Juvin R. 199 IMPROVEMENT IN GAIT PARAMETERS AFTER REHABILITATION EXERCISE TRAINING IN PATIENTS WITH FIBROMYALGIA. Parkinsonism Relat Disord 2010. [DOI: 10.1016/s1353-8020(10)70200-5] [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: 11/29/2022]
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Brochot A, Guinot M, Auchere D, Macaire JP, Weill P, Grynberg A, Rousseau-Ralliard D. Effects of alpha-linolenic acid vs. docosahexaenoic acid supply on the distribution of fatty acids among the rat cardiac subcellular membranes after a short- or long-term dietary exposure. Nutr Metab (Lond) 2009; 6:35. [PMID: 19747385 PMCID: PMC2749025 DOI: 10.1186/1743-7075-6-35] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2009] [Accepted: 09/11/2009] [Indexed: 11/16/2022] Open
Affiliation(s)
- Amandine Brochot
- Institut National de la Recherche Agronomique (INRA)-Université Paris-Sud 11, Unité Mixte de Recherche 1154, Lipides Membranaires et Régulation Fonctionnelle du Coeur et des Vaisseaux, Institut Fédératif de Recherche 141, Faculté de Pharmacie, Châtenay-Malabry, F-92296, France.
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Brochot A, Guinot M, Weill P, Grynberg A, Rousseau-Ralliard D. Abstract: P451 LONG TERM EFFECT OF DIETARY ALPHA-LINOLENIC ACID OR DOCOSAHEXAENOIC ACID ON HEART FUNCTION IN VIVO AND IN VITRO IN HEALTHY ADULT RATS. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)70746-9] [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: 10/20/2022]
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Brochot A, Guinot M, Auchere D, Macaire JP, Weill P, Grynberg A, Rousseau-Ralliard D. Effects of alpha-linolenic acid vs. docosahexaenoic acid supply on the distribution of fatty acids among the rat cardiac subcellular membranes after a short- or long-term dietary exposure. Nutr Metab (Lond) 2009; 6:14. [PMID: 19320987 PMCID: PMC2670308 DOI: 10.1186/1743-7075-6-14] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [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: 12/19/2008] [Accepted: 03/25/2009] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Previous work showed that the functional cardiac effect of dietary alpha-linolenic acid (ALA) in rats requires a long feeding period (6 months), although a docosahexaenoic (DHA) acid-supply affects cardiac adrenergic response after 2 months. However, the total cardiac membrane n-3 polyunsaturated fatty acid (PUFA) composition remained unchanged after 2 months. This delay could be due to a specific reorganization of the different subcellular membrane PUFA profiles. This study was designed to investigate the evolution between 2 and 6 months of diet duration of the fatty acid profile in sarcolemmal (SL), mitochondrial (MI), nuclear (NU) and sarcoplasmic reticulum (SR) membrane fractions. METHODS Male Wistar rats were randomly assigned to 3 dietary groups (n = 10/diet/period), either n-3 PUFA-free diet (CTL), or ALA or DHA-rich diets. After 2 or 6 months, the subcellular cardiac membrane fractions were separated by differential centrifugations and sucrose gradients. Each membrane profile was analysed by gas chromatography (GC) after lipid extraction. RESULTS As expected the n-3 PUFA-rich diets incorporated n-3 PUFA instead of n-6 PUFA in all the subcellular fractions, which also exhibited individual specificities. The diet duration increased SFA and decreased PUFA in SL, whereas NU remained constant. The SR and MI enriched in n-3 PUFA exhibited a decreased DHA level with ageing in the DHA and CTL groups. Conversely, the n-3 PUFA level remained unchanged in the ALA group, due to a significant increase in docosapentaenoic acid (DPA). N-3 PUFA rich diets lead to a better PUFA profile in all the fractions and significantly prevent the profile modifications induced by ageing. CONCLUSION With the ALA diet the n-3 PUFA content, particularly in SR and SL kept increasing between 2 and 6 months, which may partly account for the delay to achieve the modification of adrenergic response.
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Affiliation(s)
- Amandine Brochot
- Institut National de la Recherche Agronomique (INRA)-Université Paris-Sud 11, Unité Mixte de Recherche 1154, Lipides Membranaires et Régulation Fonctionnelle du Coeur et des Vaisseaux, Institut Fédératif de Recherche 141, Faculté de Pharmacie, Châtenay-Malabry, F-92296, France
- Société Valorex, Combourtillé, France
| | - Marine Guinot
- Institut National de la Recherche Agronomique (INRA)-Université Paris-Sud 11, Unité Mixte de Recherche 1154, Lipides Membranaires et Régulation Fonctionnelle du Coeur et des Vaisseaux, Institut Fédératif de Recherche 141, Faculté de Pharmacie, Châtenay-Malabry, F-92296, France
| | - Daniel Auchere
- Institut National de la Recherche Agronomique (INRA)-Université Paris-Sud 11, Unité Mixte de Recherche 1154, Lipides Membranaires et Régulation Fonctionnelle du Coeur et des Vaisseaux, Institut Fédératif de Recherche 141, Faculté de Pharmacie, Châtenay-Malabry, F-92296, France
| | - Jean-Paul Macaire
- Institut National de la Recherche Agronomique (INRA)-Université Paris-Sud 11, Unité Mixte de Recherche 1154, Lipides Membranaires et Régulation Fonctionnelle du Coeur et des Vaisseaux, Institut Fédératif de Recherche 141, Faculté de Pharmacie, Châtenay-Malabry, F-92296, France
| | | | - Alain Grynberg
- Institut National de la Recherche Agronomique (INRA)-Université Paris-Sud 11, Unité Mixte de Recherche 1154, Lipides Membranaires et Régulation Fonctionnelle du Coeur et des Vaisseaux, Institut Fédératif de Recherche 141, Faculté de Pharmacie, Châtenay-Malabry, F-92296, France
| | - Delphine Rousseau-Ralliard
- Institut National de la Recherche Agronomique (INRA)-Université Paris-Sud 11, Unité Mixte de Recherche 1154, Lipides Membranaires et Régulation Fonctionnelle du Coeur et des Vaisseaux, Institut Fédératif de Recherche 141, Faculté de Pharmacie, Châtenay-Malabry, F-92296, France
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Robbez Masson V, Guinot M, Auchere D, Gueugneau AM, Macaire JP, Grynberg A, Rousseau-Ralliard D. B012 Influence d’un apport alimentaire en acides gras polyinsaturés n-3 et impact de la longueur de chaîne sur le risque cardiométabolique chez le SHR in vivo. Arch Cardiovasc Dis 2009. [DOI: 10.1016/s1875-2136(09)72183-7] [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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Rodríguez-Espinosa J, Díaz-López C, Guinot M, Geli C, de Llobet JM, Rodríguez de la Serna A. [Thyroid dysfunction in women with suspected fibromyalgia]. ACTA ACUST UNITED AC 2008; 2:70-7. [PMID: 21794307 DOI: 10.1016/s1699-258x(06)73025-x] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2005] [Accepted: 01/11/2006] [Indexed: 10/21/2022]
Abstract
BACKGROUND AND OBJECTIVE Due to its prevalence, morbidity, and frequency rate, fibromyalgia (FM) represents a health problem and produces high healthcare resource utilization. Serum thyrotropin (TSH) measurement is recommended as a first-line laboratory test to exclude hypothyroidism as a cause of FM syndrome. The aim of this study was to analyze the prevalence of thyroid dysfunction (TD), the frequency of TSH measurement, the effect of levothyroxine treatment, and whether screening for TD is justified in women with suspected FM. PATIENTS AND METHODS A cross-sectional descriptive study was performed in 400 consecutive female outpatients with suspected FM and in 384 controls from January 2001 to October 2004. TSH measurement was used as the first line test to detect TD. RESULTS The prevalence of TD in patients with suspected FM (40/400; 10%; 95% CI: 7-13%) and controls was similar (46/384; 12%; 95% CI: 9-15%). No differences were found in the types and grades of TD. The prevalence of TD was higher in patients with suspected FM and connective tissue diseases (12%) than in those without these diseases (5%). The most frequent TD was subclinical hypothyroidism (5.5% in suspected FM and 6.7% in controls), and in 93% of these cases TSH concentrations were <10 mIU/L. FM persisted in all women with hypothyroidism even after euthyroidism was achieved with levothyroxine. A total of 870 TSH determinations were performed in 360 euthyroid patients with suspected FM. CONCLUSIONS The prevalence of TD in women with suspected FM does not differ from that in the general population. Screening for TD does not appear to be justified in women without diseases that increase their risk. In many cases the request for thyroid function tests is excessive. Treatment for hypothyroidism does not affect FM.
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Affiliation(s)
- J Rodríguez-Espinosa
- Servei de Bioquímica Clínica. Hospital de la Santa Creu i Sant Pau. Barcelona. España
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Almenar D, Mayans J, Juan O, Bueno JMG, Lopez JIJ, Frau A, Guinot M, Cerezuela P, Buscalla EG, Gasquet JA, Sanchez J. Pegfilgrastim and daily granulocyte colony-stimulating factor: patterns of use and neutropenia-related outcomes in cancer patients in Spain--results of the LEARN Study. Eur J Cancer Care (Engl) 2008; 18:280-6. [PMID: 19076208 PMCID: PMC2702003 DOI: 10.1111/j.1365-2354.2008.00959.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Daily granulocyte colony-stimulating factors [(G-CSFs); e.g. filgrastim, lenograstim] are frequently used to reduce the duration of chemotherapy-induced neutropenia (CIN) and the incidence of febrile neutropenia (FN) in cancer patients. A pegylated formulation of filgrastim, pegfilgrastim, which is administered once per cycle, was introduced in Spain in 2003. LEARN was a multi-centre, retrospective, observational study in Spain comparing patterns of use of daily G-CSF and pegfilgrastim, and CIN-related outcomes in adults with non-myeloid malignancies receiving myelosuppressive chemotherapy. Outcome measures were the percentage of patients receiving G-CSF for primary prophylaxis versus secondary prophylaxis/treatment, duration of treatment with G-CSF and incidence of CIN-related complications. Medical records from consecutive patients with documented pegfilgrastim (n = 75) or daily G-CSF (n = 111) use during 2003 were included. The proportion of patients receiving primary or secondary prophylaxis was comparable between the pegfilgrastim (39 and 48% respectively) and daily G-CSF (40 and 48% respectively) groups. However, there was a trend towards less frequent use to treat a neutropenic event such as FN or neutropenia in the pegfilgrastim group (17 versus 30% with daily G-CSF). Chemotherapy-induced neutropenia-related complications were less frequent in patients receiving pegfilgrastim (e.g. FN 11 versus 24% with daily G-CSF). This is the first study to show the potential benefits of pegfilgrastim over daily G-CSF in Spanish clinical practice.
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Affiliation(s)
- D Almenar
- Department of Oncology, Hospital Universitario Dr Peset, Valencia, Spain.
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Michallet AS, Tonini J, Regnier J, Guinot M, Favre-Juvin A, Bricout V, Halimi S, Wuyam B, Flore P. Methodological aspects of crossover and maximum fat-oxidation rate point determination. Diabetes Metab 2008; 34:514-23. [PMID: 18823806 DOI: 10.1016/j.diabet.2008.04.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2008] [Revised: 04/18/2008] [Accepted: 04/25/2008] [Indexed: 10/21/2022]
Abstract
AIM Indirect calorimetry during exercise provides two metabolic indices of substrate oxidation balance: the crossover point (COP) and maximum fat oxidation rate (LIPOXmax). We aimed to study the effects of the analytical device, protocol type and ventilatory response on variability of these indices, and the relationship with lactate and ventilation thresholds. METHODS After maximum exercise testing, 14 relatively fit subjects (aged 32+/-10 years; nine men, five women) performed three submaximum graded tests: one was based on a theoretical maximum power (tMAP) reference; and two were based on the true maximum aerobic power (MAP). Gas exchange was measured concomitantly using a Douglas bag (D) and an ergospirometer (E). RESULTS All metabolic indices were interpretable only when obtained by the D reference method and MAP protocol. Bland and Altman analysis showed overestimation of both indices with E versus D. Despite no mean differences between COP and LIPOXmax whether tMAP or MAP was used, the individual data clearly showed disagreement between the two protocols. Ventilation explained 10-16% of the metabolic index variations. COP was correlated with ventilation (r=0.96, P<0.01) and the rate of increase in blood lactate (r=0.79, P<0.01), and LIPOXmax correlated with the ventilation threshold (r=0.95, P<0.01). CONCLUSION This study shows that, in fit healthy subjects, the analytical device, reference used to build the protocol and ventilation responses affect metabolic indices. In this population, and particularly to obtain interpretable metabolic indices, we recommend a protocol based on the true MAP or one adapted to include the transition from fat to carbohydrate. The correlation between metabolic indices and lactate/ventilation thresholds suggests that shorter, classical maximum progressive exercise testing may be an alternative means of estimating these indices in relatively fit subjects. However, this needs to be confirmed in patients who have metabolic defects.
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Affiliation(s)
- A-S Michallet
- Laboratoire de recherche-exercice, santé REX-S, IFR 1, hôpital Sud, université Joseph-Fourier Grenoble-1, BP 338, 38043 Echirolles cedex, France; Inserm, ERI17, laboratoire HP2, université Joseph-Fourier Grenoble-1, 38042 Grenoble, France
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Bricout VA, Guinot M, Faure P, Flore P, Eberhard Y, Garnier P, Juvin AF. Are hormonal responses to exercise in young men with Down's syndrome related to reduced endurance performance? J Neuroendocrinol 2008; 20:558-65. [PMID: 18363810 DOI: 10.1111/j.1365-2826.2008.01695.x] [Citation(s) in RCA: 17] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The aim of the present study was to analyse whether hormonal responses could explain an exercise limitation in Down's syndrome (DS). Fourteen young men with DS (mean age 22.5 +/- 0.7 years) and 15 controls (CONT, mean age 22.5 +/- 0.3 years) participated in the study. During a treadmill submaximal incremental test, blood samples were collected for determination of hormonal and metabolic variables. Compared to CONT, DS individuals showed lower VO(2max) (P < 0.05), and lower duration of submaximal incremental exercise (P < 0.001). At rest, DS individuals showed greater catecholamines, insulin and leptin values (P < 0.05), but lower testosteronemia and cortisolemia (P < 0.05), compared to CONT. During submaximal incremental tests, catecholamines and cortisol were not increased, whereas the insulin concentration of DS individuals was significantly higher (P < 0.01) compared to CONT. Glycaemia increased significantly at the end of submaximal incremental test for CONT but not for DS individuals (P < 0.01). Maximal fat oxidation was lower (P < 0.01), whereas non-esterified fatty acids concentrations rose significantly during submaximal exercise in DS individuals. These results indicate an altered hormonal response to exercise in DS individuals. This endocrine profile at rest and during exercise may limit endurance performance in DS individuals.
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Affiliation(s)
- V-A Bricout
- IFR1-Recherche Exercice Santé, Pôle Physiologie-Rééducation, Clinique Physiologie, sommeil, Exercice, CHU Grenoble, France.
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Décote N, Vergès S, Flore P, Guinot M, Wuyam B. Poster 15. Rev Mal Respir 2008. [DOI: 10.1016/s0761-8425(08)71638-3] [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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Bricout VA, Flore P, Guinot M, Faure P, Garnier P, Eberhard Y, Juvin AF. Réponses hormonales et métaboliques de jeunes adultes trisomiques à une épreuve d’effort sous-maximale. Sci Sports 2007. [DOI: 10.1016/j.scispo.2007.09.002] [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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Bricout VA, Guinot M, Duclos M, Koulmann N, Serrurier B, Brun JF, Flore P, Chatard JC, Bigard X, Favre-Juvin A. Position de consensus: apport des examens biologiques dans le diagnostic de surentraînement. Sci Sports 2006. [DOI: 10.1016/j.scispo.2006.09.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Guinot M, Duclos M, Idres N, Souberbielle JC, Megret A, Le Bouc Y. Value of basal serum cortisol to detect corticosteroid-induced adrenal insufficiency in elite cyclists. Eur J Appl Physiol 2006; 99:205-16. [PMID: 17089154 DOI: 10.1007/s00421-006-0332-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/10/2006] [Indexed: 10/24/2022]
Abstract
The frequent use of glucocorticoids by athletes necessitates testing for adrenal insufficiency because of the risk of death in cases of associated severe stress (trauma, infection). During the 2001 and 2002 sporting seasons, we assessed the value of measuring baseline serum cortisol concentrations and the frequency of corticosteroid use during compulsory medical tests carried out by the French Cycling Federation on 659 elite cyclists (585 men and 74 women); the risk of adrenal insufficiency is negatively correlated with the basal serum cortisol level. Adrenal insufficiency was suspected in 34 cyclists (5.2%; 22 in 2001 and 12 in 2002) on the basis of below normal cortisol concentrations and in three cyclists (in 2001) because they had received corticosteroid treatment. In 2001, 10 of the 25 cyclists convoked underwent baseline follow-up serum cortisol determinations and 15 underwent dynamic exploration of adrenal function with the short ACTH test. Adrenal function was found to be deficient in four of these cyclists, at the limits of the normal range in four and normal in seven. Based on these results, the FFC sent a questionnaire in 2002 to all the cyclists to assess the use of corticosteroid in this population. This survey revealed that 85 of 538 cyclists (15.8%) had received corticosteroid treatment in the previous 3 months. Moreover, 11 of the 12 cyclists (92%) with low basal serum cortisol concentrations had received corticosteroid therapy. These results show that basal serum cortisol is relevant to detect adrenal insufficiency in sportsmen, in particular in cases of values below the normal range. The high frequency of corticosteroid use among elite cyclists, and in particular road cyclists who are at risk of trauma and infection, justifies screening tests to detect adrenal insufficiency.
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Affiliation(s)
- M Guinot
- Explorations Fonctionnelles Endocriniennes, Assistance Publique Hôpitaux de Paris, Hôp. Trousseau, Paris, France.
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Vergès S, Flore P, Laplaud D, Guinot M, Favre-Juvin A. Laboratory running test vs. field roller skiing test in cross-country skiers: a longitudinal study. Int J Sports Med 2006; 27:307-13. [PMID: 16572374 DOI: 10.1055/s-2005-865664] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Laboratory treadmill running tests are commonly used to assess the effect of training programs and to prescribe training intensity for cross-country skiers. The present study compared the physiological parameters during a treadmill running (R) test and a field roller skiing (RS) test both at the beginning (Beg) and at the end (End) of a 6-month specific training program in seven competitive cross-country skiers. Oxygen uptake (VO2) and blood lactate concentration ([La]) were assessed for exercise intensity corresponding to 70%, 80%, 90% of maximal heart rate (HRmax) and to HRmax.VO2 was lower for the RS test compared to the R test at any HR levels at Beg only (p<0.05). Maximal VO2 increased from Beg to End for the RS test only (+23.7+/-10.4; p<0.05). [La] was lower for the R test compared to the RS test during both testing periods at 90% HRmax (p<0.05), and no significant modification in [La] from Beg to End at any HR levels was observed (p>0.05). The [La]/V.O2 curve shifted toward the right from Beg to End to a greater extent for the RS test compared to the R test. The present study emphasised the importance of exercise specificity in order to assess the effect of specific training program in competitive cross-country skiers.
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Affiliation(s)
- S Vergès
- Laboratoire HP2, Université Joseph Fourier, and UF de Biologie et de Médecine du Sport, Hôpital Sud, Grenoble, France.
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Le Bouc Y, Guinot M. Anomalies de l'axe somatotrope et usage abusif d'hormone de croissance (GH). Sci Sports 2005. [DOI: 10.1016/j.scispo.2005.01.015] [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: 11/15/2022]
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31
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Wuyam B, Decorte N, Vivodtzev I, Bricout V, Favre-Juvin A, Guinot M, Flore P. Effets des β2-mimétiques inhalés, à doses thérapeutiques et juxtathérapeutiques, sur la force et la fatigabilité du quadriceps. Sci Sports 2005. [DOI: 10.1016/j.scispo.2005.01.021] [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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32
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Guinot M, Duclos M, Megret A, Le Bouc Y. Intérêts du suivi biologique du cycliste de haut niveau dans le dépistage des insuffisances surrénaliennes post-corticothérapie. Sci Sports 2005. [DOI: 10.1016/j.scispo.2005.01.010] [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: 11/30/2022]
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Bricout VA, Guinot M, Favre-Juvin A. Questionnaire de surentraînement de la Société française de médecine du sport : relations entre les échelles visuelles analogiques et le score de surentraînement chez les sportifs. Sci Sports 2003. [DOI: 10.1016/j.scispo.2003.09.005] [Citation(s) in RCA: 7] [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: 11/25/2022]
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Zeghal K, Sahnoun Z, Guinot M, Richer C, Giudicelli JF. Characterization and mechanisms of the cardiovascular and haemodynamic alterations induced by scorpion venom in rats. Fundam Clin Pharmacol 2000; 14:351-61. [PMID: 11030442 DOI: 10.1111/j.1472-8206.2000.tb00416.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [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: 11/28/2022]
Abstract
The scope of this work was to investigate the nature, chronology and mechanisms of the cardiovascular disorders induced by scorpion envenomation. Anaesthetized rats were instrumented for measurement of cardiac output (CO), renal (RBF) and muscular (HBF) blood flows (pulsed Doppler flowmetry), blood pressure, heart rate and dP/dt. Buthus occitanus venom (BO) was administered intravenously in the absence/presence of different pre-treatments. BO dose-dependently (150-300 microg/kg) increased blood pressure, dP/dt, total peripheral (TPR), renal (RVR) and muscular (HVR) vascular resistances, and decreased CO, RBF and HBF. Recovery occurred after 150 but not after 300 microg/kg. BO, 600 microg/kg, produced qualitatively similar effects but arrhythmias developed and mortality increased. Pre-treatment with phentolamine prevented the rises in TPR, RVR, HVR and blood pressure and the decreases in CO, RBF and HBF induced by BO, 300 microg/kg. Pre-treatment with propranolol prevented the rise in dP/dt and the occurrence of arrhythmias and limited the rise in RVR and the drop in RBF induced by BO, 300 microg/kg. Phentolamine, propranolol and their combination also prevented BO, 600 microg/kg-induced mortality. Other pre-treatments (bosentan, losartan, diltiazem, mepyramine) were almost ineffective vs. BO effects. Finally, BO, 300 microg/kg, induced a 30-40-fold increase in plasma epinephrine and norepinephrine levels, but no change in plasma endothelin-1 levels. Thus in anaesthetized rats, the pattern of the cardiac and systemic and regional haemodynamic effects of BO is typically that of and results from catecholamine outpouring-induced alpha- and beta-adrenoceptor stimulation.
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Affiliation(s)
- K Zeghal
- Département de pharmacologie, Faculté de médecine de Sfax, Tunisia.
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Lesesve JF, Andolfatto S, Guinot M, Gelot MA, Franck P, Béné MC, Lierde FV, Rehn Y, Dine G. [Results of hemograms of a series of top-level cyclists: an example of a factor of biological variability]. Ann Biol Clin (Paris) 2000; 58:467-71. [PMID: 10932048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
We report data about 50 caucasian top-level cyclists (45 males, 5 women, aged between 16 and 36 years, mean 25 +/- 4.5). Recruitment was by controlling top-level athletes in order to follow their blood cell counts to detect variation in haemoglobin concentration and hematocrit level (prevention of erythropoietin abuse). All samples were drawn in the morning, when the cyclists were at rest, according to a standardized protocol. Erythroblastic serie was abnormal in several cases (4 anaemias, 3 macrocytosis, 6 low haematocrit level, 10 mean cell haemoglobin higher than 32 pg, low reticulocyte count). White blood cells showed a trend toward low counts for neutrophils and lymphocytes. Two cyclists had platelets counts below 150.109/l. Our data indicated that top-level cyclism had some effects on the blood cell counts, which is likely to indicate an effect of intense aerobic training on physiological status.
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Affiliation(s)
- J F Lesesve
- Laboratoire d'hématologie, CHU, 54511 VandOEuvre-lès-Nancy
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Abstract
Neural networks are specialized artificial intelligence techniques that have shown high efficiency in dealing with complex problems. Paradigms such as backpropagation have been successfully applied in a number of biomedical applications, but not in attempts to identify women at risk of postmenopausal osteoporotic complications. In this paper, several neural networks were trained using different combinations of biochemical variables as inputs. Bone densitometric measurements in Ward's triangle and in the spinal column were used as separate classification criteria (outputs) between slow and fast bone mass losers. The most parsimonious model with the best performance included plasma concentrations of estrone, estradiol, osteocalcin, parathyrin and urine concentrations of calcium and hydroxyproline (expressed as ratio to creatinine excretion) as input neurons; ten neurons in a single hidden layer; and one neuron in the output layer. Diagnostic efficiency was 76% in Ward's triangle and 74% in the spinal column; sensitivity was 70 and 81%, and specificity was 77 and 65%, respectively. Linear discriminant analysis showed a diagnostic efficiency of 66% in Ward's triangle and 64% in the spinal column, sensitivity was 55 and 86%, and specificity was 75 and 13%, respectively. We conclude that performance of the stepwise discriminant analysis was not superior to the neural networks.
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Affiliation(s)
- J M Queraltó
- Department of Biochemistry, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
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Bernat S, García Boyero R, Guinot M, López F, Gozalbo T, Cañigral G. Pathologic rupture of the spleen as the initial manifestation in acute lymphoblastic leukemia. Haematologica 1998; 83:760-1. [PMID: 9793269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
Pathologic splenic rupture is a rare and life-threatening complication of acute leukemia. It is even more uncommon as the initial manifestation, and only a few cases has been reported in the literature. Early recognition of this complication is vital because the prognosis is fatal without immediate treatment by splenectomy. We report the case of a spontaneous spleen rupture irreversibly complicating the onset of acute lymphoblastic leukemia in a 19-year-old man, in spite of splenectomy. In our case abdominal ultrasound was a good, non-invasive diagnostic test. Therefore, we believe that the course of the underlying disease and the physical condition of the patient dramatically influenced the disease evolution.
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Bernat S, Gozalbo T, García-Boyero R, Guinot M. [Myeloma with extramedullary extension coinciding with the normalization of serum paraproteins after treatment]. Sangre (Barc) 1998; 43:96-97. [PMID: 9577192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Guinot M, Pascual E, Queraltó J, Farrerons J, Calaf J. P008 Effect of hormonal replacement therapy (HRT) by oral or transdermal route in the maintenance of bone density in postmenopausal women. Maturitas 1996. [DOI: 10.1016/s0378-5122(97)81201-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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de la Rubia J, García R, Arriaga F, Guinot M, López F, Marty M. Anti-D Immunization after Transfusion of 4 Units of Fresh Frozen Plasma. Vox Sang 1994. [DOI: 10.1159/000462536] [Citation(s) in RCA: 2] [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: 11/19/2022]
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43
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Sempere A, Jarque I, Guinot M, Palau J, García R, Sanz GF, Gomis F, Pérez-Sirvent ML, Senent L, Sanz MA. Acute myeloblastic leukemia with minimal myeloid differentiation (FAB AML-M0): a study of eleven cases. Leuk Lymphoma 1993; 12:103-8. [PMID: 8161925 DOI: 10.3109/10428199309059577] [Citation(s) in RCA: 18] [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: 01/29/2023]
Abstract
The main clinical, morphological, cytochemical, immunological features and therapy results of eleven patients diagnosed as acute myeloblastic leukemia M0 (AML-M0) are reported here. There were no clinical characteristics, abnormalities on physical examination or initial laboratory parameters that distinguished these eleven patients. Bone marrow aspirates were hypocellular in four patients. The leukemic cells were undifferentiated by light microscopy and myeloperoxidase (MPO) and/or Sudan Black B (SBB) stains were negative in all cases. Myeloid differentiation antigens were present on the leukemic cells of all eleven patients, whereas B and T cell markers were clearly negative except for CD4 and CD7 antigens. Whatever the treatment employed survival was very short. Eight of the eleven patients were treated and two achieved complete remission (CR) but only one of them is alive in continuous CR. Our results like those previously reported, suggest that AML-M0 patients have a very poor prognosis with standard induction therapies and should perhaps be considered for experimental therapeutic approaches.
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Affiliation(s)
- A Sempere
- Department of Hematology, La Fe University Hospital, Valencia, Spain
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Jarque I, Palau J, Sanz GF, Guinot M, Gomis F, Martín G, Martínez J, Sanz MA. Delayed complete response after allogeneic bone marrow transplantation in chronic lymphocytic leukemia. Blood 1993; 82:1036-8. [PMID: 8338937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
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Arriaga F, García R, Guinot M, de la Rubia J, García M, Bonanad S, Marty ML. [Transfusion policy toward a patient with an anti-Cartwright antibody (anti-Yta)]. Sangre (Barc) 1993; 38:327-9. [PMID: 8235948] [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: 01/29/2023]
Abstract
We have observed one patient with hepatic cirrhosis showing on her antibody screening an anti-Yta. We studied the 51 Cr-labelled erythrocyte survival using either Yt (a+) and autologous blood red cells. She was transfused two Yt (a+) red blood cell concentrates without any adverse reaction.
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Affiliation(s)
- F Arriaga
- Servicio de Hematología y Hemoterapia, Hospital Universitario La Fe, Valencia
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Abstract
To investigate whether or not there is an association between hypothyroidism (HPT) and chondrocalcinosis (CC) 100 HPT patients and 100 controls matched for the age and sex were evaluated prospectively. All the patients were examined clinically, and X-rays of knees, wrists and pelvis, and biological evaluation of thyroid hormones, calcium, uric acid, iron and alkaline phosphatase levels were recorded. X-rays were assessed independently by two radiologists blind to the thyroid status of the patient. The prevalence of CC was 17% in the HPT patients and 10% in the controls (NS). No correlation was found between CC duration and mechanism or treatment of HPT. We suggest that HPT and CC are two diseases that may co-exist in patients but without any causal or mechanistic relationship.
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Sempere A, Sanz GF, Senent L, de la Rubia J, Jarque I, López F, Arilla MJ, Guinot M, Martín G, Martínez J. Long-term acyclovir prophylaxis for prevention of varicella zoster virus infection after autologous blood stem cell transplantation in patients with acute leukemia. Bone Marrow Transplant 1992; 10:495-8. [PMID: 1362686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2023]
Abstract
Twenty-one adult patients with acute leukemia who underwent autologous blood stem cell transplantation (ABSCT) and who received acyclovir during the first 6 months after transplant to prevent varicella zoster virus (VZV) infection were studied retrospectively to determine the incidence and outcome of VZV infection after ABSCT. The cumulative risk of VZV infection was 32% by 1 year after transplant. No patient developed VZV while on prophylactic acyclovir but five (24%) had localized herpes zoster within 1 month of acyclovir withdrawal. There were no deaths related to VZV infection and only one patient had disseminated disease and post-herpetic neuralgia. These preliminary results suggest that the incidence and outcome of VZV infection after ABSCT largely parallel those reported in marrow transplant patients and that long-term acyclovir prophylaxis delays but does not prevent VZV infection. Prophylaxis of VZV infection after ABSCT requires new therapeutic approaches.
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Affiliation(s)
- A Sempere
- Department of Hematology, La Fe University Hospital, Valencia, Spain
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Guinot M, Sanz GF, Sempere A, Arilla MJ, Jarque I, Gomis F, Sanz MA. Prognostic value of CD34 expression in de novo acute myeloblastic leukaemia. Br J Haematol 1991; 79:533-4. [PMID: 1721528 DOI: 10.1111/j.1365-2141.1991.tb08075.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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