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De Tollenaere M, Durduret A, Chapuis E, Lambert C, Lemagnen P, Tiguemounine J, Auriol D, Scandolera A, Reynaud R. A highly soluble form of rutin for instant resolution of mask-wearing related disorders. J Cosmet Dermatol 2024; 23:1734-1744. [PMID: 38332551 DOI: 10.1111/jocd.16196] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/08/2023] [Accepted: 01/15/2024] [Indexed: 02/10/2024]
Abstract
BACKGROUND The COVID-19 pandemic brought about a new normal, necessitating the use of personal protective equipment (PPE) like face shields, surgical masks, gloves, and goggles. However, prolonged mask-wearing introduced skin-related issues due to changes in the skin's microenvironment, including increased humidity and temperature, as well as pressure on the skin. These factors led to skin deformation, vascular issues, edema, and inflammation, resulting in discomfort and cosmetic concerns. Clinical reports quickly highlighted the consequences of long-term mask use, including increased cases of "maskne" (mask-related acne) or mask-wearing related disorders such as rosacea flare-ups, skin-barrier defects, itching, erythema, redness, hyperpigmentation, and lichenification. Some of these issues, like inflammation, oxidative stress, and poor wound healing, could be directly linked to acne-related disorders or skin hypoxia. AIM To address these problems, researchers turned to rutin, a well-known flavonoid with antioxidant, vasoactive, and anti-inflammatory properties. However, rutin's poor water solubility presented a challenge for cosmetic formulations. To overcome this limitation, a highly water-soluble form of rutin was developed, making it suitable for use at higher concentrations. METHODS In vitro and ex vivo tests were conducted, as well as an innovative clinical trial including volunteers wearing surgical masks for at least 2 h, to evaluate the biological activity of this soluble rutin on the main skin concerns associated with mask-wearing (inflammation, oxidative stress, skin repair, hyperpigmentation, and skin redness). RESULTS The in vitro results showed that the active ingredient significantly reduced oxidative stress, improved wound healing, and reduced inflammation. In dark skin explants, the active ingredient significantly reduced melanin content, indicating its lightening activity. This effect was confirmed in the clinical study, where brown spots decreased significantly after 4 days of application. Moreover, measurements on volunteers demonstrated a decrease in skin redness and vascularization after the active ingredient application, indicating inflammation and erythema reduction. Volunteers reported improved skin comfort. CONCLUSION In summary, the COVID-19 pandemic led to various skin issues associated with mask-wearing. A highly soluble form of rutin was developed, which effectively addressed these concerns by reducing inflammation, oxidative stress, and hyperpigmentation while promoting wound healing. This soluble rutin offers a promising solution for the rapid treatment of maskne-related disorders and other skin problems caused by prolonged mask use.
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Affiliation(s)
| | - Anaïs Durduret
- Givaudan Active Beauty, Givaudan France SAS, Pomacle, France
| | - Emilie Chapuis
- Givaudan Active Beauty, Givaudan France SAS, Pomacle, France
| | - Carole Lambert
- Givaudan Active Beauty, Givaudan France SAS, Toulouse, France
| | | | | | - Daniel Auriol
- Givaudan Active Beauty, Givaudan France SAS, Toulouse, France
| | | | - Romain Reynaud
- Givaudan Active Beauty, Givaudan France SAS, Toulouse, France
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Blanc Catala J, Zanchetta C, François C, Chapuis E, Joset N, Meunier M, Loeser F, Godbille S, Scandolera A, Reynaud R, Lefèvre F. Evaluation of the hydrating benefits of a cationic hyaluronic acid: From biological evaluation to consumer home use trial. Int J Cosmet Sci 2024. [PMID: 38685748 DOI: 10.1111/ics.12965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 03/04/2024] [Accepted: 03/14/2024] [Indexed: 05/02/2024]
Abstract
Active ingredients are often assessed based on physiological measurements, but innovative technologies to measure skin sensations can provide a holistic volunteer assessment of the use of an ingredient. In this paper, the hydrating benefits of a cationic hyaluronic acid (HA) were evaluated alongside clinical biometrics and innovative cognitive measurements to determine how biological benefits correlated with volunteers' feelings and perceptions of hydration. The results demonstrated that cationic HA provides hydrating benefits at the clinical level due to its film-forming properties. Through the use of innovative behavioural measurement tools, we were able to show that these outcomes are perceived by naïve consumers in real-life conditions. In addition, the benefits of cationic HA reported by users were in accordance with the mental representation they had related to the use of HA, thus the product achieved complete sensorial embodiment. We can conclude that the combination of clinical evaluations and home use trials consolidates product assessment when seeking to measure consumer satisfaction with proven biological benefits.
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De Tollenaere M, Meunier M, Lapierre L, Chapuis E, Guilleret A, Harrison I, Jean T, Rannou A, Scandolera A, Reynaud R. High molecular weight hyaluronic acid vectorised with clay provides long-term hydration and reduces skin brightness. Skin Res Technol 2024; 30:e13672. [PMID: 38591218 PMCID: PMC11002775 DOI: 10.1111/srt.13672] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 03/11/2024] [Indexed: 04/10/2024]
Abstract
BACKGROUND Hyaluronic acid (HA) is a widely used active cosmetic ingredient. Its multiple skin care benefits are modulated by its molecular weight. Low molecular weight (LMW) HA can penetrate the skin, but high molecular weight (HMW) HA remains at the surface. Here, we assessed how vectorization of HMW HA with bentonite clay-achieved with an innovative technology-enhances its cosmetic and hydrating properties. MATERIALS AND METHODS The two HA forms were applied to skin explants; their penetration and smoothing effects were monitored by Raman spectroscopy and scanning electron microscopy. The two forms were biochemically characterised by chromatography, enzyme sensitivity assays, and analysis of Zeta potential. Cosmetics benefits such as, the smoothing effect of vectorised-HA was assessed in ex vivo experiments on skin explants. A placebo-controlled clinical study was finally conducted applying treatments for 28 days to analyse the final benefits in crow's feet area. RESULTS Raman spectroscopy analysis revealed native HMW HA to accumulate at the surface of skin explants, whereas vectorised HMW HA was detected in deeper skin layers. This innovative vectorisation process changed the zeta potential of vectorised HMW HA, being then more anionic and negative without impacting the biochemical structure of native HA. In terms of cosmetic benefits, following application of vectorised HMW HA ex vivo, the skin's surface was visibly smoother. This smoothing was clinically confirmed, with a significant reduction in fine lines. CONCLUSION The development of innovative process vectorising HMW HA allowed HMW HA penetration in the skin. This enhanced penetration extends the clinical benefits of this iconic cosmetic ingredient.
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Castets S, Albarel F, Bachelot A, Brun G, Bouligand J, Briet C, Bui Quoc E, Cazabat C, Chabbert-Buffet C, Christin-Maitre S, Courtillot C, Cuny T, De Filippo G, Donadille B, Illouz F, Pellegrini I, Reznik Y, Saveanu A, Teissier N, Touraine P, Vantyghem MC, Vergier J, Léger J, Brue T, Reynaud R. Position statement on the diagnosis and management of congenital pituitary deficiency in adults: the French National Diagnosis and Treatment Protocol (NDTP). Ann Endocrinol (Paris) 2024:S0003-4266(24)00035-0. [PMID: 38452869 DOI: 10.1016/j.ando.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
Pituitary deficiency, or hypopituitarism, is a rare chronic disease. It is defined by insufficient synthesis of one or more pituitary hormones (growth hormone, TSH, ACTH, LH-FSH, prolactin), whether or not associated with arginine vasopressin deficiency (formerly known as diabetes insipidus). In adult patients, it is usually acquired (notably during childhood), but can also be congenital, due to abnormal pituitary development. The present study focuses on congenital pituitary deficiency in adults, from diagnosis to follow-up, including special situations such as pregnancy or the elderly. The clinical presentation is highly variable, ranging from isolated deficit to multiple deficits, which may be part of a syndromic form or not. Diagnosis is based on a combination of clinical, biological (assessment of all hormonal axes), radiological (brain and hypothalamic-pituitary MRI) and genetic factors. Treatment consists in hormonal replacement therapy, adapted according to the period of life and the deficits, which may be progressive. Comorbidities, risk of complications and acute decompensation, and the impact on fertility and quality of life all require adaptative multidisciplinary care and long-term monitoring.
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Affiliation(s)
- S Castets
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Service de Pédiatrie multidisciplinaire, Hôpital de la Timone Enfants, Centre de Référence des Maladies Rares de l'hypophyse HYPO, 13005 Marseille, France.
| | - F Albarel
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Service d'Endocrinologie, Hôpital de la Conception, Centre de Référence des Maladies Rares de l'hypophyse HYPO, 13005 Marseille, France
| | - A Bachelot
- AP-HP, IE3M, hôpital Pitié-Salpêtrière, department of endocrinology and reproductive medicine and Centre de référence des maladies endocriniennes rares de la croissance, center de référence des pathologies gynécologiques Rares, ICAN, Paris, France; Sorbonne Université, Paris, France
| | - G Brun
- Aix Marseille University, CNRS, CRMBM, Marseille, France
| | - J Bouligand
- Molecular Genetic, Pharmacogenetic and Hormonology, Paris-Saclay University, Kremlin Bicetre Hospital APHP, Le Kremlin Bicetre, France
| | - C Briet
- Assistance Publique-Hôpitaux de Paris, Hôpital de Bicêtre, Service d'Endocrinologie et des Maladies de la Reproduction, Centre de Référence des Maladies Rares de l'Hypophyse, F-94275 Le Kremlin Bicêtre, France; Institut MITOVASC, INSERM U1083, Université d'Angers, Département d'Endocrinologie, Diabétologie et Nutrition, Centre Hospitalier Universitaire d'Angers, F-49933 Angers, France
| | - E Bui Quoc
- Assistance Publique-Hôpitaux de Paris, Robert Debré University Hospital, Ophthalmology Department, Paris, France
| | - C Cazabat
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Service de Pédiatrie multidisciplinaire, Hôpital de la Timone Enfants, Centre de Référence des Maladies Rares de l'hypophyse HYPO, 13005 Marseille, France
| | - C Chabbert-Buffet
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Service de Pédiatrie multidisciplinaire, Hôpital de la Timone Enfants, Centre de Référence des Maladies Rares de l'hypophyse HYPO, 13005 Marseille, France
| | - S Christin-Maitre
- Sorbonne University, Department of Endocrinology, Diabetology and Reproductive Medicine, Hôpital Saint-Antoine, Assistance Publique-Hôpitaux de Paris, Centre de référence des maladies endocriniennes rares de la croissance et du développement (CMERC) Centre de compétence HYPO 184 rue du faubourg St Antoine, 75012 Paris, France
| | - C Courtillot
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Service de Pédiatrie multidisciplinaire, Hôpital de la Timone Enfants, Centre de Référence des Maladies Rares de l'hypophyse HYPO, 13005 Marseille, France
| | - T Cuny
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Service de Pédiatrie multidisciplinaire, Hôpital de la Timone Enfants, Centre de Référence des Maladies Rares de l'hypophyse HYPO, 13005 Marseille, France
| | - G De Filippo
- Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Hôpital universitaire Robert Debré, Service d'Endocrinologie et Diabétologie Pédiatrique, Centre de Référence des Maladies Endocriniennes de la Croissance et du Développement, Paris, France
| | - B Donadille
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Service de Pédiatrie multidisciplinaire, Hôpital de la Timone Enfants, Centre de Référence des Maladies Rares de l'hypophyse HYPO, 13005 Marseille, France
| | - F Illouz
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Service de Pédiatrie multidisciplinaire, Hôpital de la Timone Enfants, Centre de Référence des Maladies Rares de l'hypophyse HYPO, 13005 Marseille, France
| | - I Pellegrini
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Service de Pédiatrie multidisciplinaire, Hôpital de la Timone Enfants, Centre de Référence des Maladies Rares de l'hypophyse HYPO, 13005 Marseille, France
| | - Y Reznik
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Service de Pédiatrie multidisciplinaire, Hôpital de la Timone Enfants, Centre de Référence des Maladies Rares de l'hypophyse HYPO, 13005 Marseille, France
| | - A Saveanu
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Service de Pédiatrie multidisciplinaire, Hôpital de la Timone Enfants, Centre de Référence des Maladies Rares de l'hypophyse HYPO, 13005 Marseille, France
| | - N Teissier
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Service de Pédiatrie multidisciplinaire, Hôpital de la Timone Enfants, Centre de Référence des Maladies Rares de l'hypophyse HYPO, 13005 Marseille, France
| | - P Touraine
- Service d'endocrinologie et médecine de la reproduction, Sorbonne Université Médecine-Hôpital Pitié Salpêtrière; Centre de maladies endocrinennes rares de la croissance et du développement, Paris, France
| | - M C Vantyghem
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Service de Pédiatrie multidisciplinaire, Hôpital de la Timone Enfants, Centre de Référence des Maladies Rares de l'hypophyse HYPO, 13005 Marseille, France
| | - J Vergier
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Service de Pédiatrie multidisciplinaire, Hôpital de la Timone Enfants, Centre de Référence des Maladies Rares de l'hypophyse HYPO, 13005 Marseille, France
| | - J Léger
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Service de Pédiatrie multidisciplinaire, Hôpital de la Timone Enfants, Centre de Référence des Maladies Rares de l'hypophyse HYPO, 13005 Marseille, France
| | - T Brue
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Service de Pédiatrie multidisciplinaire, Hôpital de la Timone Enfants, Centre de Référence des Maladies Rares de l'hypophyse HYPO, 13005 Marseille, France; Aix Marseille Univ, APHM, INSERM, MMG, Laboratory of Molecular Biology Hospital La Conception, Marseille, France
| | - R Reynaud
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Service de Pédiatrie multidisciplinaire, Hôpital de la Timone Enfants, Centre de Référence des Maladies Rares de l'hypophyse HYPO, 13005 Marseille, France; Aix Marseille Univ, APHM, INSERM, MMG, Laboratory of Molecular Biology Hospital La Conception, Marseille, France
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Aouchiche K, Bernoux D, Baechler Sadoul E, Haine E, Joubert F, Epstein S, Faure Galon N, Dalla-Vale F, Combe JC, Samper M, Simonin G, Castets S, Marquant E, Vergier J, Reynaud R. Impact of continuous glucose monitoring on everyday life of young children with type 1 diabetes and their parents: An evaluation of 114 families. Prim Care Diabetes 2024; 18:91-96. [PMID: 38000979 DOI: 10.1016/j.pcd.2023.11.002] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 10/08/2023] [Accepted: 11/03/2023] [Indexed: 11/26/2023]
Abstract
INTRODUCTION The prevalence of type 1 diabetes is increasing worldwide. The advent of new monitoring devices has enabled tighter glycemic control. AIM To study the impact of glucose monitoring devices on the everyday life of young children with type 1 diabetes (T1D) and their parents. METHODS A questionnaire was addressed to parents of children with T1D under the age of 6 years with an insulin pump treated in one of the hospitals of the ADIM network in France between January and July 2020. RESULTS Among the 114 families included in the study, 53% of parents (26/49) woke up every night to monitor blood glucose levels when their child had flash glucose monitoring (FGM), compared with 23% (13/56) of those whose child had continuous glucose monitoring (CGM). Overall, 81% of parents (86/108) found that glucose monitoring improved their own sleep and parents whose child had CGM were significantly more likely to report improved sleep (86% vs 73%, p = 0.006). Forty-nine percent of parents (55/113) declared that they (in 87% of cases, the mother only) had reduced their working hours or stopped working following their child's T1D diagnosis. Maternal unemployment was significantly associated with the presence of siblings (p = 0.001) but not with glycemic control (p = 0,87). Ninety-eight percent of parents (105/107) think that glucose monitoring improves school integration. CONCLUSION In these families of children with T1D, new diabetes technologies reduced the burden of care but sleep disruption remained common. Social needs evaluation, particularly of mothers, is important at initial diagnosis of T1D in children.
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Affiliation(s)
- K Aouchiche
- Assistance-Publique des Hôpitaux de Marseille (APHM), Multidisciplinary Pediatric Service - La Timone Children's Hospital, 264 rue Saint Pierre, 13385 Marseille, France.
| | - D Bernoux
- Assistance-Publique des Hôpitaux de Marseille (APHM), Multidisciplinary Pediatric Service - La Timone Children's Hospital, 264 rue Saint Pierre, 13385 Marseille, France
| | - E Baechler Sadoul
- Nice-Lenval University Hospital, Department of Pediatrics, 57 Avenue de la Californie, Nice, France
| | - E Haine
- Nice-Lenval University Hospital, Department of Pediatrics, 57 Avenue de la Californie, Nice, France
| | - F Joubert
- Avignon Hospital, Department of Pediatrics, 305 Rue Raoul Follereau, 84902 Avignon, France
| | - S Epstein
- Aubagne Hospital, Department of Pediatrics, 179 Av des Sœurs Gastine, 13677 Aubagne, France
| | - N Faure Galon
- Aix-en-Provence Pertuis Hospital, Department of Pediatrics, Avenue des Tamaris, Aix-en Provence, France
| | - F Dalla-Vale
- Montpellier University Hospital, Department of Pediatrics, Arnaud De Villeneuve Hospital, 371 avenue Doyen Gaston Giraud, 34295 Montpellier, France; Saint-Pierre Institute, Department of Pediatrics, 371 Avenue de l'évêché de Maguelone, 34250 Palavas-les-Flots, France
| | - J C Combe
- Hyères hospital, Depatment of Pediatrics, Bd Maréchal Juin, 83400 Hyères, France
| | - M Samper
- Pediatric Val Pré Vert Rehabilitation and Recuperative Care Facilities, 929 route de Gardanne, 13105 Mimet, France
| | - G Simonin
- Assistance-Publique des Hôpitaux de Marseille (APHM), Multidisciplinary Pediatric Service - La Timone Children's Hospital, 264 rue Saint Pierre, 13385 Marseille, France
| | - S Castets
- Assistance-Publique des Hôpitaux de Marseille (APHM), Multidisciplinary Pediatric Service - La Timone Children's Hospital, 264 rue Saint Pierre, 13385 Marseille, France
| | - E Marquant
- Assistance-Publique des Hôpitaux de Marseille (APHM), Multidisciplinary Pediatric Service - La Timone Children's Hospital, 264 rue Saint Pierre, 13385 Marseille, France
| | - J Vergier
- Assistance-Publique des Hôpitaux de Marseille (APHM), Multidisciplinary Pediatric Service - La Timone Children's Hospital, 264 rue Saint Pierre, 13385 Marseille, France
| | - R Reynaud
- Assistance-Publique des Hôpitaux de Marseille (APHM), Multidisciplinary Pediatric Service - La Timone Children's Hospital, 264 rue Saint Pierre, 13385 Marseille, France
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Meunier M, Bracq M, Tiguemounine J, Maramaldi G, Scandolera A, Reynaud R. Skin Cellular Reprogramming as an Innovative Anti-Aging Strategy for Cosmetic Application: A Clinical Study of Sericoside. FRONT BIOSCI-LANDMRK 2023; 28:112. [PMID: 37395029 DOI: 10.31083/j.fbl2806112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/17/2023] [Accepted: 05/09/2023] [Indexed: 07/04/2023]
Abstract
BACKGROUND While our body ages, skin cells progressively lose their pluripotency and proliferative capacities, as well as remodeling driver role, among other activities. This loss of capacities leads to visible aging signs such as wrinkles, under-eye bags or even aging spots. We studied if the stimulation of cell pluripotency and proliferation by a natural molecule could be an innovative anti-ageing strategy for skin rejuvenation. METHODS The activity of sericoside, a compound extracted from the bark of Terminalia sericea roots, was evaluated at a concentration of 0.02% in vitro. This assessment involved transcriptomic analysis on fibroblasts after 24 hours, as well as proliferation tests on aged fibroblasts after 72 hours. A clinical study was then conducted on 40 volunteers between the ages of 35 and 55. For four weeks, volunteers applied a cream twice daily containing either sericoside or blank emulsion (control group). Skin elasticity was measured by cutometry with R2 parameter. Skin texture and roughness was analyzed by an in vivo 3D scanner. RESULTS Transcriptomic analysis showed that sericoside improved the set of gene expressions involved in cell cycle (+85% MKI67), cell proliferation (+250% IGF1), DNA repair (+56% OGG1), pluripotency transcription factors (+36% NANOG) and stem cells maintenance (+200% SOX2). We substantiated a decrease of proliferation factor with aged cells compared to young cells by 50%, while sericoside increased this proliferation factor by +46%, a similar rate to that of a 22-year-old donor. Clinically, the anti-aging effects of sericoside were evident: the use of sericoside resulted in a 17% increase in skin elasticity and a 10% reduction in skin roughness, underscoring the smoothing effect with sericoside. CONCLUSIONS The study highlighted an innovative anti-aging strategy that involves re-activating cells' memory to reprogram cell pluripotency by stimulating the natural tools available in our DNA.
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Affiliation(s)
- Marie Meunier
- Research & Development, Givaudan Active Beauty, 51110 Pomacle, France
| | - Marine Bracq
- Research & Development, Givaudan Active Beauty, 51110 Pomacle, France
| | | | - Giada Maramaldi
- Marketing & Innovation, Givaudan Active Beauty, 20055 Vimodrone, Italy
| | | | - Romain Reynaud
- Research & Development, Givaudan Active Beauty, 31400 Toulouse, France
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Lambert C, Lemagnen P, Don Simoni E, Hubert J, Kotland A, Paulus C, De Bizemont A, Bernard S, Humeau A, Auriol D, Reynaud R. Enzymatic Synthesis of α-Glucosyl-Baicalin through Transglucosylation via Cyclodextrin Glucanotransferase in Water. Molecules 2023; 28:molecules28093891. [PMID: 37175300 PMCID: PMC10180260 DOI: 10.3390/molecules28093891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/27/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
Baicalin is a biologically active flavone glucuronide with poor water solubility that can be enhanced via glucosylation. In this study, the transglucosylation of baicalin was successfully achieved with CGTases from Thermoanaerobacter sp. and Bacillus macerans using α-cyclodextrin as a glucosyl donor. The synthesis of baicalin glucosides was optimized with CGTase from Thermoanaerobacter sp. Enzymatically modified baicalin derivatives were α-glucosylated with 1 to 17 glucose moieties. The two main glucosides were identified as Baicalein-7-O-α-D-Glucuronidyl-(1→4')-O-α-D-Glucopyranoside (BG1) and Baicalein-7-O-α-D-Glucuronidyl-(1→4')-O-α-D-Maltoside (BG2), thereby confirming recent findings reporting that glucuronyl groups are acceptors of this CGTase. Optimized conditions allowed for the attainment of yields above 85% (with a total glucoside content higher than 30 mM). BG1 and BG2 were purified via centrifugal partition chromatography after an enrichment through deglucosylation with amyloglucosidase. Transglucosylation increased the water solubility of BG1 by a factor of 188 in comparison to that of baicalin (molar concentrations), while the same value for BG2 was increased by a factor of 320. Finally, BG1 and BG2 were evaluated using antioxidant and anti-glycation assays. Both glucosides presented antioxidant and anti-glycation properties in the same order of magnitude as that of baicalin, thereby indicating their potential biological activity.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Anne Humeau
- Givaudan France SAS, 22560 Pleumeur-Bodou, France
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De Tollenaere M, Chapuis E, Martinez J, Paulus C, Dupont J, Don Simoni E, Robe P, Sennelier-Portet B, Auriol D, Scandolera A, Reynaud R. Gardenia jasminoides Extract, with a Melatonin-like Activity, Protects against Digital Stress and Reverses Signs of Aging. Int J Mol Sci 2023; 24:ijms24054948. [PMID: 36902379 PMCID: PMC10003113 DOI: 10.3390/ijms24054948] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/24/2023] [Accepted: 02/28/2023] [Indexed: 03/08/2023] Open
Abstract
Digital stress is a newly identified cosmetic stress that is mainly characterized by blue light exposure. The effects of this stress have become increasingly important with the emergence of personal digital devices, and its deleterious effects on the body are now well-known. Blue light has been observed to cause perturbation of the natural melatonin cycle and skin damage similar to that from UVA exposure, thus leading to premature aging. "A melatonin-like ingredient" was discovered in the extract of Gardenia jasminoides, which acts as a filter against blue light and as a melatonin-like ingredient to prevent and stop premature aging. The extract showed significant protective effects on the mitochondrial network of primary fibroblasts, a significant decrease of -86% in oxidized proteins on skin explants, and preservation of the natural melatonin cycle in the co-cultures of sensory neurons and keratinocytes. Upon analysis using in silico methods, only the crocetin form, released through skin microbiota activation, was found to act as a melatonin-like molecule by interacting with the MT1-receptor, thus confirming its melatonin-like properties. Finally, clinical studies revealed a significant decrease in wrinkle number of -21% in comparison to the placebo. The extract showed strong protection against blue light damage and the prevention of premature aging through its melatonin-like properties.
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Affiliation(s)
- Morgane De Tollenaere
- R&D Department, Givaudan France SAS, Route de Bazancourt, 51110 Pomacle, France
- Correspondence: (M.D.T.); (A.S.)
| | - Emilie Chapuis
- R&D Department, Givaudan France SAS, Route de Bazancourt, 51110 Pomacle, France
| | - Jessy Martinez
- R&D Department, Naturex France Avignon (Givaudan), 250 Rue Pierre Bayle, 84140 Avignon, France
| | - Chantal Paulus
- R&D Department, Givaudan France SAS, Bâtiment Canal Biotech 1, 3 Rue des Satellites, 31400 Toulouse, France
| | - Joran Dupont
- R&D Department, Givaudan France SAS, Bâtiment Canal Biotech 1, 3 Rue des Satellites, 31400 Toulouse, France
| | - Eglantine Don Simoni
- R&D Department, Givaudan France SAS, Bâtiment Canal Biotech 1, 3 Rue des Satellites, 31400 Toulouse, France
| | - Patrick Robe
- R&D Department, Givaudan France SAS, Bâtiment Canal Biotech 1, 3 Rue des Satellites, 31400 Toulouse, France
| | | | - Daniel Auriol
- R&D Department, Givaudan France SAS, Bâtiment Canal Biotech 1, 3 Rue des Satellites, 31400 Toulouse, France
| | - Amandine Scandolera
- R&D Department, Givaudan France SAS, Route de Bazancourt, 51110 Pomacle, France
- Correspondence: (M.D.T.); (A.S.)
| | - Romain Reynaud
- R&D Department, Givaudan France SAS, Bâtiment Canal Biotech 1, 3 Rue des Satellites, 31400 Toulouse, France
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Meunier M, Bracq M, Chapuis E, Lapierre L, Humeau A, Bernard S, Lambert C, Paulus C, Auriol P, Lemagnen P, Sandré J, Auriol D, Scandolera A, Reynaud R. Targeting SDF-1 as an efficient strategy to resolve skin hyperpigmentation issues with Himanthalia elongata extract. J Cosmet Dermatol 2023; 22:383-394. [PMID: 36062379 PMCID: PMC10087502 DOI: 10.1111/jocd.15357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/26/2022] [Accepted: 08/19/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND During aging, human skin is facing hyperpigmentation disorders: senile lentigo (chronobiologic aging) leads to loss of melanogenesis' control while solar lentigo (UV exposure) promotes an increase of oxidized proteins, melanogenesis, and lipofuscin. AIMS Stromal-cell-derived-factor-1 (SDF-1) was identified as key regulator of hyperpigmentation and its expression is reduced in senescent fibroblasts, highlighting this protein as new target for skin hyperpigmentation. MATERIALS We developed two skin explant models mimicking of senile and solar lentigo, based on H2 O2 systemic treatment and UV irradiation, respectively. We evaluated Himanthalia elongata extract (HEX) on these models after 5 days of treatment and analyzed SDF-1 expression and skin pigmentation. For solar lentigo, we also analyzed oxidized proteins and lipofuscin accumulation. Finally, we evaluated HEX in vivo on nearly 100 multi ethnicities' volunteers. RESULTS SDF-1 expression decreased in senile lentigo model, associated with hyperpigmentation. HEX application restored SDF-1 expression, leading to skin pigmentation decrease. For solar lentigo, we showed an impact of UVs on SDF-1 expression linked to hyperpigmentation, while the application of HEX restored SDF-1 expression and reduced skin pigmentation. On same model, HEX reduced oxidized proteins quantity and lipofuscin which increased after UV exposure. Clinically, HEX reduced dark spot pigmentation on Caucasian volunteers' hands and on Asian and African volunteers' face after 28 days. DISCUSSION We have developed ex vivo models mimetic of senile and solar lentigo and showed for a very first time that SDF-1 can be also a key regulator for UV-induced hyperpigmentation. CONCLUSION Our ex vivo and clinical studies highlighted the power of HEX with strong reduction of dark spots regardless of volunteers' ethnicities.
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Affiliation(s)
- Marie Meunier
- Research & Development, Givaudan Active Beauty, Pomacle, France
| | - Marine Bracq
- Research & Development, Givaudan Active Beauty, Pomacle, France
| | - Emilie Chapuis
- Research & Development, Givaudan Active Beauty, Pomacle, France
| | - Laura Lapierre
- Research & Development, Givaudan Active Beauty, Pomacle, France
| | - Anne Humeau
- Research & Development, Givaudan Active Beauty, Ile-Grande, France
| | - Sylvie Bernard
- Research & Development, Givaudan Active Beauty, Ile-Grande, France
| | - Carole Lambert
- Research & Development, Givaudan Active Beauty, Toulouse, France
| | - Chantal Paulus
- Research & Development, Givaudan Active Beauty, Toulouse, France
| | - Pascale Auriol
- Research & Development, Givaudan Active Beauty, Toulouse, France
| | - Perrine Lemagnen
- Research & Development, Givaudan Active Beauty, Toulouse, France
| | | | - Daniel Auriol
- Research & Development, Givaudan Active Beauty, Toulouse, France
| | | | - Romain Reynaud
- Research & Development, Givaudan Active Beauty, Toulouse, France
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Baldi M, Reynaud R, Lefevre F, Fleury M, Scandolera A, Maramaldi G. Synergistic use of bioactive agents for the management of different skin conditions: an overview of biological activities. Eur Rev Med Pharmacol Sci 2023; 27:1450-1466. [PMID: 36876685 DOI: 10.26355/eurrev_202302_31385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
Recently, many plant-derived bioactive agents have been included in dermo-cosmetics formulations. This leads to an extensive portfolio of innovative products with an expanded range of benefits, including anti-aging, antioxidant, hydrating and depigmenting. Although different technologies drawing on science and nature are used to create these high-performing molecules, there remains some debate about the mechanism of action of the natural bioactive ingredients within dermo-cosmetics. This review recapitulates the main biological mechanisms underlying the activity of natural active ingredients, with a specific focus on their synergistic use for the management of common, yet quite specific, skin conditions. A total of 28 plant-derived bioactives were selected from the Givaudan Active Beauty (Argenteuil, France) portfolio, a multinational company specializing in innovative natural actives research. An extensive literature review about their biological activity was conducted by a PubMed search using different keywords. No language or publication date restrictions were used. Givaudan Active Beauty data on file were also considered. The bioactive ingredients were described according to the pathogenetic mechanisms underlying 10 common skin conditions that dermo-cosmetics may address. Literature data have shown that plant-derived bioactives are involved in a wide range of biological mechanisms showing anti-inflammatory, antioxidant, and moisturizing properties, along with skin barrier protection and collagen synthesis activities. As a result, different combinations of bioactives within dermo-cosmetics can be defined to counteract simultaneously the different pathogenetic mechanisms underlying different skin conditions. Available literature supports the synergistic use of plant-derived bioactive agents within dermo-cosmetics as a viable and safe option for managing the most common skin conditions.
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Affiliation(s)
- M Baldi
- Humanitas Gavazzeni, Bergamo, Italy.
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Boira C, Meunier M, Bracq M, Maramaldi G, Scandolera A, Reynaud R. 608 The historical efficacy of Centella asiatica on stretchmarks demonstrated. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.625] [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: 11/19/2022]
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Meunier M, Chapuis E, Humeau A, Lambert C, Auriol D, Scandolera A, Reynaud R. 523 Targeting SDF-1 as an efficient strategy to resolve skin hyperpigmentation issues with Himanthalia elongata extract. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.538] [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: 11/20/2022]
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Meunier M, Chapuis E, Godbille S, Brooks J, Carolan H, Lambert C, Sennelier B, Scandolera A, Reynaud R. 249 Reduction of scalp dryness and white flakes production for emotional improvement. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.260] [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: 11/19/2022]
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Zanchetta C, Vilanova D, Jarrin C, Scandolera A, Chapuis E, Auriol D, Robe P, Dupont J, Lapierre L, Reynaud R. Bacterial taxa predictive of hyperpigmented skins. Health Sci Rep 2022; 5:e609. [PMID: 35425869 PMCID: PMC8989272 DOI: 10.1002/hsr2.609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 09/01/2021] [Revised: 03/30/2022] [Accepted: 03/30/2022] [Indexed: 11/18/2022] Open
Abstract
Background and Aims Dark spots, brown spots, or hyperpigmented spots (HPS) are oval or irregular brown areas of skin. Their emergence is associated with dysregulation of the immune system, and may also be caused by a deficiency in stromal cell‐derived factor‐1, leading to perturbed melanogenesis and accumulation of melanosomes within neighboring keratinocytes. The skin microbiota (living microorganisms present on the surface of the skin) is known to play essential roles in maintaining skin homeostasis and in regulating the immune system. Here, we investigated whether the microbiota could play a role in the emergence of HPS. Methods The clinical study involved 38 European women, selected from among 74 volunteers. Participants were divided into two groups depending on the spot areas measured on their faces. The study was designed to avoid conflicting factors: both groups presented similar skin pH, hydration, transepidermal water loss, and sebum levels. The two cohorts were also age‐matched, with a mean of 29‐years‐old for both. Results Alpha‐diversity of the microbiota was similar for the two groups. On skins with more HPS, seven bacterial genera were identified in significantly higher proportions and included opportunistic pathogens and inflammatory bacteria. Six bacterial genera, including bacteria showing antioxidant and anti‐UV properties, were identified in significantly higher proportions on less spotted skins. Cross‐domain association networks revealed distinct co‐occurrences of genera between the two groups, suggesting nonidentical community structures and exchanges, depending on the HPS status. Conclusion Our results reveal specific microbiota composition and networks on skins based on HPS status. Changes could alter communication with the immune system, leading to the emergence of dark spots. As an essential part of the overall skin ecosystem, and through its interaction with the skin matrix, the skin microbiota and its maintenance could be considered a new target for skincare applications.
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Levaillant L, Huet F, Bretones P, Corne C, Dupuis C, Reynaud R, Somma C, Barat P, Corcuff J, Bouhours-Nouet N, Gauthereau V, Polak M, Leger J, Cheillan D, Coutant R. Neonatal screening for congenital hypothyroidism: Time to lower the TSH threshold in France. Arch Pediatr 2022; 29:253-257. [DOI: 10.1016/j.arcped.2022.02.001] [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] [Received: 04/22/2021] [Revised: 12/20/2021] [Accepted: 02/04/2022] [Indexed: 10/18/2022]
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Castets S, Villanueva C, Vergier J, Brue T, Saveanu A, Reynaud R. Clinical, radiological, and molecular diagnosis of congenital pituitary diseases causing short stature. Arch Pediatr 2022; 28:8S33-8S38. [PMID: 37870532 DOI: 10.1016/s0929-693x(22)00041-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Short stature in children can be caused by congenital pituitary disorders involving at least one form of growth hormone deficiency. Clinical and radiological evaluations of the index case and family history assessments are essential to guide genetic diagnostic testing and interpret results. The first-line approach is panel testing of genes involved in pituitary development with variants known to be pathogenic in this context. It identifies a genetic cause in less than 10% of cases, however. Whole-exome and whole-genome sequencing techniques may provide original information but also raise new questions regarding the pathophysiological role of identified variants. These new tools can make genetic counselling more complex. The role of clinicians in these interpretations is therefore important. © 2022 French Society of Pediatrics. Published by Elsevier Masson SAS. All rights reserved.
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Affiliation(s)
- S Castets
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Hôpital Timone Enfants, Service de Pédiatrie Multidisciplinaire, Marseille, France; Centre de Référence des Maladies Rares de l'Hypophyse HYPO, Marseille, France.
| | - C Villanueva
- Hospices Civils de Lyon (HCL), Hôpital Femme Mère Enfant (HFME), Service d'Endocrinologie pédiatrique, Bron, France; Centre de Référence des Maladies Rares de l'Hypophyse HYPO, Marseille, France
| | - J Vergier
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Hôpital Timone Enfants, Service de Pédiatrie Multidisciplinaire, Marseille, France; Centre de Référence des Maladies Rares de l'Hypophyse HYPO, Marseille, France
| | - T Brue
- Hospices Civils de Lyon (HCL), Hôpital Femme Mère Enfant (HFME), Service d'Endocrinologie pédiatrique, Bron, France; Centre de Référence des Maladies Rares de l'Hypophyse HYPO, Marseille, France; Assistance Publique-Hôpitaux de Marseille (AP-HM), Service d'Endocrinologie, Hôpital de la Conception, Marseille, France; Institut Marseille Maladies Rares (MarMaRa), Marseille, France
| | - A Saveanu
- Centre de Référence des Maladies Rares de l'Hypophyse HYPO, Marseille, France; Aix Marseille Université, Institut National de la Santé et de la Recherche Médicale (INSERM), Marseille Medical Genetics (MMG), U 1251, Marseille, France; Institut Marseille Maladies Rares (MarMaRa), Marseille, France; Assistance Publique-Hôpitaux de Marseille (AP-HM), Laboratoire de Biologie Moléculaire, Hôpital de la Conception, Marseille, France
| | - R Reynaud
- Assistance Publique-Hôpitaux de Marseille (AP-HM), Hôpital Timone Enfants, Service de Pédiatrie Multidisciplinaire, Marseille, France; Centre de Référence des Maladies Rares de l'Hypophyse HYPO, Marseille, France; Aix Marseille Université, Institut National de la Santé et de la Recherche Médicale (INSERM), Marseille Medical Genetics (MMG), U 1251, Marseille, France; Institut Marseille Maladies Rares (MarMaRa), Marseille, France
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Meunier M, Scandolera A, Chapuis E, Lapierre L, Sandré J, Brunner G, Lovchik M, Reynaud R. The anti-wrinkles properties of sodium acetylated hyaluronate. J Cosmet Dermatol 2021; 21:2749-2762. [PMID: 34708918 PMCID: PMC9543187 DOI: 10.1111/jocd.14539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/14/2021] [Accepted: 09/27/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Intrinsic aging promotes wrinkles formation by an imbalance between matrix synthesis/degradation in favor of degradation. This is accelerated by the exposome leading to overproduction of protease and fewer remodeling. OBJECTIVE Protecting the integrity of extracellular matrix appears as the most efficient anti-aging solution. We developed a grafted HA specifically designed to get anti-aging property due to a specific molecular weight and acetylation degree. METHODS A transcriptomic analysis was performed on fibroblasts, followed by a measurement of MMP secretion and subsequent effect on collagen degradation. MMP expression in skin explants concerned by chronobiological and extrinsic aging was analyzed by immunostaining. A clinical study was conducted on volunteers presenting wrinkles on face to evaluate flash reduction of wrinkles after 6 h of application by profilometry and anti-aging efficacy after 2 months by VISIA® CR2.3. RESULTS Transcriptomic analysis evidenced an inhibition of MMP gene expression with acetylated HA, confirmed by an inhibition of MMPs release by fibroblasts, and a protection of type I collagen against degradation. We confirmed the reduction of MMPs in mature skin and in skin explants exposed to UV and urban dust. We demonstrated during clinical studies the flash reduction effect of acetylated HA on crow's feet wrinkles and a filling of nasogenian areas 6 h after application, and a wrinkles number reduction on nasogenian area up to 2 months of application. CONCLUSION We developed a new grafted HA owing protective properties against ECM degradation induced by chronobiological and extrinsic aging, leading to a significant and efficient anti-wrinkles effect.
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Affiliation(s)
- Marie Meunier
- Givaudan Active Beauty, Research and Development, Pomacle, France
| | | | - Emilie Chapuis
- Givaudan Active Beauty, Research and Development, Pomacle, France
| | - Laura Lapierre
- Givaudan Active Beauty, Research and Development, Pomacle, France
| | | | | | | | - Romain Reynaud
- Givaudan Active Beauty, Research and Development, Toulouse, France
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Corriou A, Rocha V, Reynaud R, Scandolera A, De Tollenaere M, Auriol D, Robe P, Don Simoni E, Benedicte Sennelier-Portet B. How the skin microbiome influences ingredient action of cosmetics. Through their effects on metabolism, bacteria in the skin affect whether active ingredients will be safe and effective for human health. Toxicol Lett 2021. [DOI: 10.1016/s0378-4274(21)00633-0] [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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Essendoubi M, Alsamad F, Noël P, Meunier M, Scandolera A, Sandré J, Manfait M, Gobinet C, Reynaud R, Piot O. Combining Raman imaging and MCR-ALS analysis for monitoring retinol permeation in human skin. Skin Res Technol 2021; 27:1100-1109. [PMID: 34114267 DOI: 10.1111/srt.13069] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 05/14/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Monitoring the transcutaneous permeation of exogenous molecules using conventional techniques generally requires long pre-analytical preparation or labelling of samples. However, Raman spectroscopy is a label-free and non-destructive method which provides spatial distribution of tracked actives in skin. The aim of our study was to prove the interest of Raman imaging coupled with multivariate curve resolution alternating least square (MCR-ALS) analysis in monitoring retinol penetration into frozen and living human skin. MATERIALS AND METHODS After topical treatment of skin samples by free or encapsulated retinol, thin cross sections were analysed by Raman imaging (up to 100 µm depth). Mann-Whitney test was used to identify retinol spectroscopic markers in skin. MCR-ALS was used to estimate retinol contribution in Raman spectral images. Heat maps were constructed to compare the distribution of free and encapsulated retinol in skin models. RESULTS We identified the bands at 1158, 1196 and 1591 cm-1 as specific features for monitoring retinol in skin. Moreover, our MCR-ALS results showed an improvement of retinol penetration (up to 30 µm depth) with the encapsulated form as well as storage reservoir formation in stratum corneum, for each skin model. Finally, greater retinol penetration into living skin was observed. CONCLUSION This study shows a proof of concept for the evaluation of retinol penetration in skin using Raman imaging coupled with MCR-ALS. This concept needs to be validated on more subjects to include inter-individual variability but also other factors affecting skin permeation (age, sex, pH, etc). Our study can be extended to other actives.
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Affiliation(s)
- Mohammed Essendoubi
- Laboratory of Translational Biospectroscopy, BioSpecT EA 7506, University of Reims Champagne-Ardenne, France.,Biophysic Laboratory, Faculty of Medicine and Pharmacy of Tangier, Abdelmalek Essaadi University, Tangier, Morocco
| | - Fatima Alsamad
- Laboratory of Translational Biospectroscopy, BioSpecT EA 7506, University of Reims Champagne-Ardenne, France
| | - Philippe Noël
- Laboratory of Translational Biospectroscopy, BioSpecT EA 7506, University of Reims Champagne-Ardenne, France
| | - Marie Meunier
- Givaudan France, Research and Development, Pomacle, France
| | | | | | - Michel Manfait
- Laboratory of Translational Biospectroscopy, BioSpecT EA 7506, University of Reims Champagne-Ardenne, France
| | - Cyril Gobinet
- Laboratory of Translational Biospectroscopy, BioSpecT EA 7506, University of Reims Champagne-Ardenne, France
| | - Romain Reynaud
- Givaudan France, Research and Development, Toulouse, France
| | - Olivier Piot
- Laboratory of Translational Biospectroscopy, BioSpecT EA 7506, University of Reims Champagne-Ardenne, France.,Platform of Cellular and Tissular Imaging (PICT), University of Reims Champagne-Ardenne, Reims, France
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Meunier M, Chapuis E, Lapierre L, Auriol P, Paulus C, Elbaum B, Don Simoni E, Sandré J, Auriol D, Scandolera A, Reynaud R. Mannose-6-phosphate complex and improvement in biomechanical properties of the skin. J Cosmet Dermatol 2021; 20:1598-1610. [PMID: 33580613 PMCID: PMC8251629 DOI: 10.1111/jocd.14000] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 11/26/2020] [Accepted: 02/03/2021] [Indexed: 12/27/2022]
Abstract
BACKGROUND The dermis is composed of a tangle of macromolecules that provides the skin its biomechanical properties. During chronological aging, fibroblasts lose their ability to synthesize collagen and an accumulation of matrix metalloproteinases leads to an increase in collagen degradation. As a result, there is a decline in the biomechanical properties of the skin. Skin aging is accelerated by external factors such as UV radiation and pollution, which induce accumulation of oxidants, and so of oxidized proteins in the skin. AIMS Atomic force microscopy (AFM) has emerged as an alternative method for studying the biomechanical properties of skin cells and tissues. METHODS/RESULTS Thus, we identified mannose-6-phosphate complex as a new powerful molecule capable of reversing the visible signs of aging by reorganizing the collagen network of the dermis and by improving the skin biomechanical properties. This effect was correlated with clinical studies that showed a marked antiaging effect through a reduction in the number of crow's feet and in the depth and size of neck wrinkles. CONCLUSION Mannose-6-phosphate complex appeared to be able to protect proteins in the dermis scaffold against oxidation and degradation, allowing an improvement in the skin biomechanical properties.
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Affiliation(s)
- Marie Meunier
- Givaudan Active Beauty, Research and Development, Pomacle, France
| | - Emilie Chapuis
- Givaudan Active Beauty, Research and Development, Pomacle, France
| | - Laura Lapierre
- Givaudan Active Beauty, Research and Development, Pomacle, France
| | - Pascale Auriol
- Givaudan Active Beauty, Research and Development, Toulouse, France
| | - Chantal Paulus
- Givaudan Active Beauty, Research and Development, Toulouse, France
| | - Boris Elbaum
- Givaudan Active Beauty, Research and Development, Toulouse, France
| | | | | | - Daniel Auriol
- Givaudan Active Beauty, Research and Development, Toulouse, France
| | | | - Romain Reynaud
- Givaudan Active Beauty, Research and Development, Toulouse, France
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De Tollenaere M, Chapuis E, Lapierre L, Bracq M, Hubert J, Lambert C, Sandré J, Auriol D, Scandolera A, Reynaud R. Overall renewal of skin lipids with Vetiver extract for a complete anti-ageing strategy. Int J Cosmet Sci 2020; 43:165-180. [PMID: 33253416 PMCID: PMC8246832 DOI: 10.1111/ics.12678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 11/20/2020] [Accepted: 11/26/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Skin lipids are essential in every compartment of the skin where they play a key role in various biological functions. Interestingly, their role is central in the maintenance of hydration which is related to skin barrier function and in the skin structure through adipose tissue. It is well described today that skin lipids are affected by ageing giving skin sagging, wrinkles and dryness. Thereby, developing cosmetic actives able to reactivate skin lipids would be an efficient ant-ageing strategy. Due to the strong commitment of our scientists to innovate responsibly and create value, they designed a high value active ingredient named here as Vetiver extract, using a ground-breaking upcycling approach. We evidenced that this unique extract was able to reactivate globally the skin lipids production, bringing skin hydration and plumping effect for mature skin. METHOD In order to demonstrate the global renewal of lipids, we evaluated the lipids synthesis on cutaneous cells that produce lipids such as keratinocytes, sebocytes and adipocytes then on Reconstructed Human Epidermis and skin explants. We evaluated the expression of proteins involved in ceramides transport and barrier cornification. We then evaluated hydration and sebaceous parameters on a panel of mature volunteers. RESULTS We firstly demonstrated that Vetiver extract induced sebum production from human sebocytes cells lines but also improved its quality as observed by the production of specific antimicrobial lipids. Secondly, we demonstrated that Vetiver extract was able to restore skin barrier with the increase of skin lipids neosynthesis on Reconstructed Human Epidermis and skin explants. We also evidenced that Vetiver extract stimulated the lipids transport and epidermal cornification. Finally, Vetiver extract showed a significant effect on adipogenesis and maturation of adipocytes at in vitro and ex vivo models. We confirmed all these activities by showing that Vetiver extract improved sebum production and brought hydration through an increase of lipids content and their conformation. Vetiver extract induced an improvement of skin fatigue and a plumping effect by acting deeply on adipose tissue. CONCLUSION In conclusion, we developed an active ingredient able to bring anti-ageing effect for mature skin by a global increase of skin lipids.
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Affiliation(s)
| | - Emilie Chapuis
- Givaudan France SAS, Research and Development, Argenteuil, France
| | - Laura Lapierre
- Givaudan France SAS, Research and Development, Argenteuil, France
| | - Marine Bracq
- Givaudan France SAS, Research and Development, Argenteuil, France
| | | | - Carole Lambert
- Givaudan France SAS, Research and Development, Argenteuil, France
| | - Jérome Sandré
- Chirurgien plasticien et esthétique, Polyclinique de Courlancy, Reims, France
| | - Daniel Auriol
- Givaudan France SAS, Research and Development, Argenteuil, France
| | | | - Romain Reynaud
- Givaudan France SAS, Research and Development, Argenteuil, France
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Chavany J, Cano A, Roquelaure B, Bourgeois P, Boubnova J, Gaignard P, Hoebeke C, Reynaud R, Rhomer B, Slama A, Badens C, Chabrol B, Fabre A. Mutations in NBAS and SCYL1, genetic causes of recurrent liver failure in children: Three case reports and a literature review. Arch Pediatr 2020; 27:155-159. [DOI: 10.1016/j.arcped.2020.01.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 12/15/2019] [Accepted: 01/25/2020] [Indexed: 12/14/2022]
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Lambert C, Lemaire J, Auger H, Guilleret A, Reynaud R, Clément C, Courot E, Taidi B. Optimize, Modulate, and Scale-up Resveratrol and Resveratrol Dimers Bioproduction in Vitis labrusca L. Cell Suspension from Flasks to 20 L Bioreactor. Plants (Basel) 2019; 8:E567. [PMID: 31817113 PMCID: PMC6963533 DOI: 10.3390/plants8120567] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/22/2019] [Accepted: 11/29/2019] [Indexed: 01/18/2023]
Abstract
Resveratrol and its oligomers are biologically active compounds. This work brings new insights for the bioproduction of trans-resveratrol with three dimers, pallidol, trans-ε-viniferin, and trans-δ-viniferin, in cell suspension of Vitis labrusca. Conditions of elicitation by methyl jasmonate were optimized for the production of stilbenes using statistical design of experiment. Bio-production of stilbenes was scaled-up to 5 L and in these conditions, trans-resveratrol concentrations reached 237 mg/L, and for pallidol 114 mg/L. The comparison of different elicitation modes (different elicitors, combination with cyclodextrins or adsorbent resin) allowed to reach particularly high concentrations of target molecules: Resveratrol 6.14 g/L, pallidol 0.90 g/L, δ-viniferin 0.54 g/L, and ε-viniferin 0.50 g/L. Scale-up to 20 L-stirring-bioreactor gave similar growth rates to those observed in shake flask culture, with a high production of resveratrol (4.23 g/L) and δ-viniferin (0.76 g/L). This work provides new strategies for the production of stilbenes in plant cell suspension for biological and commercial evaluation.
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Affiliation(s)
- Carole Lambert
- Givaudan France SAS, Active Beauty, 51110 Pomacle, France; (A.G.); (R.R.)
- LGPM, CentraleSupélec, Université Paris-Saclay, SFR Condorcet FR CNRS 3417, Centre Européen de Biotechnologie et de Bioéconomie (CEBB), 51110 Pomacle, France; (J.L.); (H.A.); (B.T.)
| | - Julien Lemaire
- LGPM, CentraleSupélec, Université Paris-Saclay, SFR Condorcet FR CNRS 3417, Centre Européen de Biotechnologie et de Bioéconomie (CEBB), 51110 Pomacle, France; (J.L.); (H.A.); (B.T.)
| | - Hélène Auger
- LGPM, CentraleSupélec, Université Paris-Saclay, SFR Condorcet FR CNRS 3417, Centre Européen de Biotechnologie et de Bioéconomie (CEBB), 51110 Pomacle, France; (J.L.); (H.A.); (B.T.)
| | - Arnaud Guilleret
- Givaudan France SAS, Active Beauty, 51110 Pomacle, France; (A.G.); (R.R.)
| | - Romain Reynaud
- Givaudan France SAS, Active Beauty, 51110 Pomacle, France; (A.G.); (R.R.)
| | - Christophe Clément
- Résistance Induite et Bioprotection des Plantes, EA 4707, SFR Condorcet FR CNRS 3417, UFR Sciences Exactes et Naturelles, Université de Reims Champagne-Ardenne, BP1039, 51687 Reims CEDEX 02, France; (C.C.); (E.C.)
| | - Eric Courot
- Résistance Induite et Bioprotection des Plantes, EA 4707, SFR Condorcet FR CNRS 3417, UFR Sciences Exactes et Naturelles, Université de Reims Champagne-Ardenne, BP1039, 51687 Reims CEDEX 02, France; (C.C.); (E.C.)
| | - Behnam Taidi
- LGPM, CentraleSupélec, Université Paris-Saclay, SFR Condorcet FR CNRS 3417, Centre Européen de Biotechnologie et de Bioéconomie (CEBB), 51110 Pomacle, France; (J.L.); (H.A.); (B.T.)
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Albertini F, Marquant E, Reynaud R, Lacroze V. Two cases of fractures in neonates associated with maternofetal vitamin D deficiency. Arch Pediatr 2019; 26:361-364. [PMID: 31353147 DOI: 10.1016/j.arcped.2019.06.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Revised: 05/01/2019] [Accepted: 06/18/2019] [Indexed: 12/25/2022]
Abstract
Vitamin D supplementation is essential for the entire population, especially during pregnancy and in the pediatric period. We report two case studies of full-term newborns who presented long-bone fractures associated with severe vitamin D deficiency transmitted to them by their mothers, even though maternal supplementation had been implemented according to the existing recommendations. These observations encourage the investigation of neonatal vitamin D deficiency in the presence of long-bone fractures in the absence of traumatic birth and the necessity of reenforcing the means of prevention and the selection of risk groups in order to adjust vitamin D supplementation during pregnancy individually.
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Affiliation(s)
- F Albertini
- Service de médecine néonatale, CHU de la Conception, AP-HM, 147, boulevard Baille, 13005 Marseille, France.
| | - E Marquant
- Service de pédiatrie multidisciplinaire, CHU de la Timone, AP-HM, 264, rue Saint-Pierre, 13005 Marseille, France
| | - R Reynaud
- Service de pédiatrie multidisciplinaire, CHU de la Timone, AP-HM, 264, rue Saint-Pierre, 13005 Marseille, France
| | - V Lacroze
- Service de médecine néonatale, CHU de la Conception, AP-HM, 147, boulevard Baille, 13005 Marseille, France
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De Tollenaere M, Meunier M, Scandolera A, Sandre J, Lambert C, Chapuis E, Auriol D, Reynaud R. Well-aging: A new strategy for skin homeostasis under multi-stressed conditions. J Cosmet Dermatol 2019; 19:444-455. [PMID: 31232507 PMCID: PMC7003805 DOI: 10.1111/jocd.13047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 10/11/2018] [Revised: 04/19/2019] [Accepted: 05/13/2019] [Indexed: 12/15/2022]
Abstract
Background Several studies evidenced significant increase of cortisol is the consequence of UV or emotional stress and leads to various deleterious effects in the skin. Aim The well‐aging, a new concept of lifestyle, procures an alternative to the anti‐aging strategy. We demonstrated that Tephrosia purpurea extract is able to stimulate well‐being hormones while reducing cortisol release. Furthermore, we hypothesized that the extract could positively influence the global skin homeostasis. Method We evaluated the impact of the extract on cortisol, β‐endorphin, and dopamine, released by normal human epidermal keratinocytes (NHEKs). A gene expression study was realized on NHEKs and NHDFs. The protein over‐expression of HMOX1 and NQO1 was evidenced at cellular and tissue level. Finally, we conducted a clinical study on 21 women living in a polluted environment in order to observe the impact of the active on global skin improvement. Results The extract is able to reduce significantly the cortisol release while inducing the production of β‐endorphin and dopamine. The gene expression study revealed that Tephrosia purpurea extract up‐regulated the genes involved in antioxidant response and skin renewal. Moreover, the induction of HMOX and NQO1 expression was confirmed on NHDFs, NHEKs and in RHE. We clinically demonstrated that the extract improved significantly the skin by reducing dark circles, represented by an improvement of L*, a*, and ITA parameters. Conclusion Tephrosia purpurea extract has beneficial effects on skin homeostasis through control of the well‐being state and antioxidant defenses leading to an improvement of dark circles, a clinical features particularly impacted by emotional and environmental stress.
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Affiliation(s)
| | - Marie Meunier
- Givaudan France SAS Argenteuil, Research and Development, Pomacle, France
| | | | - Jérôme Sandre
- Chirurgien Plasticien et Esthétique, Polyclinique de Courlancy, Reims, France
| | - Carole Lambert
- Givaudan France SAS Argenteuil, Research and Development, Pomacle, France
| | - Emilie Chapuis
- Givaudan France SAS Argenteuil, Research and Development, Pomacle, France
| | - Daniel Auriol
- Givaudan France SAS Argenteuil, Research and Development, Pomacle, France
| | - Romain Reynaud
- Givaudan France SAS Argenteuil, Research and Development, Pomacle, France
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Laugier Hervy O, Dubus JC, Stremler-Le Bel N, Baravalle-Einaudi M, Reynaud R, Adiceam P, Roth B, Gross G. WS15-2 Early management of glucose disorders in cystic fibrosis children drastically decreases antibiotics consumption. J Cyst Fibros 2019. [DOI: 10.1016/s1569-1993(19)30206-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Essendoubi M, Meunier M, Scandolera A, Gobinet C, Manfait M, Lambert C, Auriol D, Reynaud R, Piot O. Conformation changes in human hair keratin observed using confocal Raman spectroscopy after active ingredient application. Int J Cosmet Sci 2019; 41:203-212. [PMID: 30946493 PMCID: PMC6852583 DOI: 10.1111/ics.12528] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 12/20/2018] [Revised: 03/21/2019] [Accepted: 04/01/2019] [Indexed: 11/27/2022]
Abstract
OBJECTIVE In hair care cosmetic products' evaluation, one commonly used method is to evaluate the hair appearance as a gold standard in order to determine the effect of an active ingredient on the final state of the hair via visual appreciation. Although other techniques have been proposed for a direct analysis of the hair fibres, they give only surface or structural information, without any accurate molecular information. A different approach based on confocal Raman spectroscopy has been proposed for tracking in situ the molecular change in the keratin directly in the human hair fibres. It presents a high molecular specificity to detect chemical interactions between molecules and can provide molecular information at various depths at the cortex and cuticle levels. METHODS To evaluate the potential of confocal Raman spectroscopy in testing the efficiency of cosmetic ingredients on keratin structure, we undertook a pilot study on the effectiveness of a smoothing shampoo on natural human hair, by analysing α-helix and β-sheet spectral markers in the Amide I band and spectral markers specific to the cystin sulfur content. RESULTS We confirmed that an active proved to be effective on a gold standard decreases α-helix keratin conformation and promotes β-sheet keratin conformation in the hair fibres. We also showed that treatment with the effective active decreases the intensity of covalent disulfide (S-S at 510 cm-1 ) cross-linking bands of cysteine. These data confirm that the effective active also acts on the tertiary structure of keratin. CONCLUSION From these experiments, we concluded that the effective active has a smoothing effect on the human hair fibres by acting on α-helix and β-sheet keratin conformation and on the tertiary structure of keratin. Based on these results, confocal Raman spectroscopy can be considered a powerful technique for investigating the influence of hair cosmetic ingredients on keratin structure in human hair fibres. Moreover, this analytical technique has the advantage of being non-destructive and label free; in addition, it does not require sample extraction or purification and it can be applied routinely in cosmetic laboratories.
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Affiliation(s)
- M. Essendoubi
- EA 7506 Biospectroscopie Translationnelle (BioSpectT)Faculty of PharmacyUniversity of Reims Champagne‐Ardenne51 rue Cognac JayReimsFrance
- Biophysic LaboratoryFaculty of Medicine and PharmacyUniversity of Abdel Malek EssâdiTangerMOUSA
| | - M. Meunier
- Givaudan France SAS Argenteuil55 Rue de la Voie des Bans, Research and DevelopmentPomacleFrance
| | - A. Scandolera
- Givaudan France SAS Argenteuil55 Rue de la Voie des Bans, Research and DevelopmentPomacleFrance
| | - C. Gobinet
- EA 7506 Biospectroscopie Translationnelle (BioSpectT)Faculty of PharmacyUniversity of Reims Champagne‐Ardenne51 rue Cognac JayReimsFrance
| | - M. Manfait
- EA 7506 Biospectroscopie Translationnelle (BioSpectT)Faculty of PharmacyUniversity of Reims Champagne‐Ardenne51 rue Cognac JayReimsFrance
| | - C. Lambert
- Givaudan France SAS Argenteuil55 Rue de la Voie des Bans, Research and DevelopmentPomacleFrance
| | - D. Auriol
- Givaudan France SAS Argenteuil55 Rue de la Voie des Bans, Research and DevelopmentPomacleFrance
| | - R. Reynaud
- Givaudan France SAS Argenteuil55 Rue de la Voie des Bans, Research and DevelopmentPomacleFrance
| | - O. Piot
- EA 7506 Biospectroscopie Translationnelle (BioSpectT)Faculty of PharmacyUniversity of Reims Champagne‐Ardenne51 rue Cognac JayReimsFrance
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Meunier M, Scandolera A, Chapuis E, Lambert C, Jarrin C, Robe P, Chajra H, Auriol D, Reynaud R. From stem cells protection to skin microbiota balance: Orobanche rapum extract, a new natural strategy. J Cosmet Dermatol 2018; 18:1140-1154. [PMID: 30485658 PMCID: PMC7379634 DOI: 10.1111/jocd.12804] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 09/17/2018] [Indexed: 12/25/2022]
Abstract
Background Healthy skin is a delicate balance between skin renewal and microbiota homeostasis, and its imbalance promotes premature aging and dermatological disorders. Skin stem cells are key actors in this process but their sensitivity to aging and external stressors such as UV reduces the skin renewal power. The skin microbiota has been recently described as active in the healthy skin, and its imbalance could trigger some disorders. Aims We hypothesized that reactivation of stem cells and maintenance of microbiota could be a disruptive strategy for younger and healthier skin. We thus developed a new plant extract that restores the entire skin renewal process by sequential activation from stem cells stimulation to microbiota protection. Methods We studied stem cells comportment in the presence of Orobanche rapum extract by survivin immunocytochemistry and caspases 3 and 9 dosages. We also analyzed epidermal differentiation markers by immunohistochemistry and lipids organization by GC/MS At the clinical level, we investigated the impact of O. rapum extract on microbiota and on skin aspect. Results We demonstrated an active protection of skin stem cells through the maintenance of their clone‐forming capacity and resistance to UV through the overexpression of survivin coupled to caspases inhibition. Furthermore, we showed the restoration of epidermal differentiation markers and ceramide biosynthesis favorable to orthorhombic organization. Clinical studies, including microbiota analysis, showed an active skin surface renewal coupled with microbiota protection. Conclusion We evidenced that our active ingredient is able to stimulate skin rejuvenation while protecting the cutaneous microbiota, creating healthier skin and thereby beauty.
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Affiliation(s)
- Marie Meunier
- Research and Development, Givaudan France SAS, Pomacle, France
| | | | - Emilie Chapuis
- Research and Development, Givaudan France SAS, Pomacle, France
| | - Carole Lambert
- Research and Development, Givaudan France SAS, Toulouse, France
| | - Cyrille Jarrin
- Research and Development, Givaudan France SAS, Toulouse, France
| | - Patrick Robe
- Research and Development, Givaudan France SAS, Toulouse, France
| | - Hanane Chajra
- Research and Development, Givaudan France SAS, Toulouse, France
| | - Daniel Auriol
- Research and Development, Givaudan France SAS, Toulouse, France
| | - Romain Reynaud
- Research and Development, Givaudan France SAS, Pomacle, France
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Scandolera A, Hubert J, Humeau A, Lambert C, De Bizemont A, Winkel C, Kaouas A, Renault JH, Nuzillard JM, Reynaud R. GABA and GABA-Alanine from the Red Microalgae Rhodosorus marinus Exhibit a Significant Neuro-Soothing Activity through Inhibition of Neuro-Inflammation Mediators and Positive Regulation of TRPV1-Related Skin Sensitization. Mar Drugs 2018; 16:md16030096. [PMID: 29562624 PMCID: PMC5867640 DOI: 10.3390/md16030096] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 02/14/2018] [Revised: 03/09/2018] [Accepted: 03/13/2018] [Indexed: 01/18/2023] Open
Abstract
The aim of the present study was to investigate the neuro-soothing activity of a water-soluble hydrolysate obtained from the red microalgae Rhodosorus marinus Geitler (Stylonemataceae). Transcriptomic analysis performed on ≈100 genes related to skin biological functions firstly revealed that the crude Rhodosorus marinus extract was able to significantly negatively modulate specific genes involved in pro-inflammation (interleukin 1α encoding gene, IL1A) and pain detection related to tissue inflammation (nerve growth factor NGF and its receptor NGFR). An in vitro model of normal human keratinocytes was then used to evaluate the ability of the Rhodosorus marinus extract to control the release of neuro-inflammation mediators under phorbol myristate acetate (PMA)-induced inflammatory conditions. The extract incorporated at 1% and 3% significantly inhibited the release of IL-1α and NGF secretion. These results were confirmed in a co-culture system of reconstructed human epithelium and normal human epidermal keratinocytes on which a cream formulated with the Rhodosorus marinus extract at 1% and 3% was topically applied after systemic induction of neuro-inflammation. Finally, an in vitro model of normal human astrocytes was developed for the evaluation of transient receptor potential vanilloid 1 (TRPV1) receptor modulation, mimicking pain sensing related to neuro-inflammation as observed in sensitive skins. Treatment with the Rhodosorus marinus extract at 1% and 3% significantly decreased PMA-mediated TRPV1 over-expression. In parallel with these biological experiments, the crude Rhodosorus marinus extract was fractionated by centrifugal partition chromatography (CPC) and chemically profiled by a recently developed 13C NMR-based dereplication method. The CPC-generated fractions as well as pure metabolites were tested again in vitro in an attempt to identify the biologically active constituents involved in the neuro-soothing activity of the Rhodosorus marinus extract. Two active molecules, namely, γ-aminobutyric acid (GABA) and its structural derivative GABA-alanine, demonstrated a strong capacity to positively regulate skin sensitization mechanisms related to the TRPV1 receptors under PMA-induced inflammatory conditions, therefore providing interesting perspectives for the treatment of sensitive skins, atopia, dermatitis, or psoriasis.
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Affiliation(s)
- Amandine Scandolera
- Active Beauty Department, Givaudan France, 51110 Pomacle, France; (A.H.); (C.L.); (A.D.B.); (R.R.)
- Correspondence: (J.H.); (A.S.)
| | - Jane Hubert
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, Université de Reims Champagne-Ardenne, 51687 Reims Cedex 2, France; (J.-H.R.); (J.-M.N.)
- Correspondence: (J.H.); (A.S.)
| | - Anne Humeau
- Active Beauty Department, Givaudan France, 51110 Pomacle, France; (A.H.); (C.L.); (A.D.B.); (R.R.)
| | - Carole Lambert
- Active Beauty Department, Givaudan France, 51110 Pomacle, France; (A.H.); (C.L.); (A.D.B.); (R.R.)
| | - Audrey De Bizemont
- Active Beauty Department, Givaudan France, 51110 Pomacle, France; (A.H.); (C.L.); (A.D.B.); (R.R.)
| | - Chris Winkel
- Givaudan Nederland, Flavors, 1411 GP Naarden, The Netherlands; (C.W.); (A.K.)
| | - Abdelmajid Kaouas
- Givaudan Nederland, Flavors, 1411 GP Naarden, The Netherlands; (C.W.); (A.K.)
| | - Jean-Hugues Renault
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, Université de Reims Champagne-Ardenne, 51687 Reims Cedex 2, France; (J.-H.R.); (J.-M.N.)
| | - Jean-Marc Nuzillard
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, Université de Reims Champagne-Ardenne, 51687 Reims Cedex 2, France; (J.-H.R.); (J.-M.N.)
| | - Romain Reynaud
- Active Beauty Department, Givaudan France, 51110 Pomacle, France; (A.H.); (C.L.); (A.D.B.); (R.R.)
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Vergier J, Marquant E, Busa T, Reynaud R. [Investigation of tall stature in children: Diagnostic work-up, review of the main causes]. Arch Pediatr 2018; 25:163-169. [PMID: 29395883 DOI: 10.1016/j.arcped.2017.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 08/27/2017] [Accepted: 12/14/2017] [Indexed: 11/27/2022]
Abstract
Tall stature is not a common motive for medical consultation, even though by definition 2.5 % of children in the general population are concerned. It is usually defined as height greater than+2 standard deviations (SD) using the appropriate growth chart for age and gender, or a difference greater than +2 SD between actual height and target height. With a patient presenting tall stature, the physician has to determine whether it is a benign feature or a disease. Indeed, making the diagnosis is essential for hormonal disease or genetic overgrowth syndromes. The past medical history including parents' height, prenatal and birth data, physical examination along with anthropometry (height, weight, head circumference, body mass index), and growth chart evaluation with the detailed growth pattern are generally sufficient to make the diagnosis such as familial tall stature, obesity, or early puberty. Bone age estimation may be helpful for some specific etiologies and is also necessary to help predict final adult height. After exclusion of common causes, further investigation is required. Sudden growth acceleration often reveals endocrine pathology such as early puberty, hyperthyroidism, or acrogigantism. Tall stature accompanied by dysmorphic features, congenital malformations, developmental delay, or a family medical history may be related to genetic disorders such as Marfan, Sotos, or Wiedemann-Beckwith syndromes. We relate here the most frequent etiologies of overgrowth syndromes.
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Affiliation(s)
- J Vergier
- Service de pédiatrie multidisciplinaire, hôpital Timone Enfants, Assistance publique des hôpitaux de Marseille, 264, rue Saint-Pierre, 13385 Marseille, France.
| | - E Marquant
- Service de pédiatrie multidisciplinaire, hôpital Timone Enfants, Assistance publique des hôpitaux de Marseille, 264, rue Saint-Pierre, 13385 Marseille, France
| | - T Busa
- Service de génétique médicale, hôpital Timone Enfants, Assistance publique des Hôpitaux de Marseille, 264, rue Saint-Pierre, 13385 Marseille, France
| | - R Reynaud
- Service de pédiatrie multidisciplinaire, hôpital Timone Enfants, Assistance publique des hôpitaux de Marseille, 264, rue Saint-Pierre, 13385 Marseille, France
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Bakiri A, Hubert J, Reynaud R, Lambert C, Martinez A, Renault JH, Nuzillard JM. Reconstruction of HMBC Correlation Networks: A Novel NMR-Based Contribution to Metabolite Mixture Analysis. J Chem Inf Model 2018; 58:262-270. [DOI: 10.1021/acs.jcim.7b00653] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ali Bakiri
- Institut de Chimie
Moléculaire de Reims, UMR CNRS 7312, SFR CAP’SANTE, Université de Reims Champagne-Ardenne, Moulin de la Housse, BP 1039, 51687 Reims Cedex, France
- Active Beauty Department, Givaudan France, Route de Bazancourt, 51110 Pomacle, France
| | - Jane Hubert
- Institut de Chimie
Moléculaire de Reims, UMR CNRS 7312, SFR CAP’SANTE, Université de Reims Champagne-Ardenne, Moulin de la Housse, BP 1039, 51687 Reims Cedex, France
| | - Romain Reynaud
- Active Beauty Department, Givaudan France, Route de Bazancourt, 51110 Pomacle, France
| | - Carole Lambert
- Active Beauty Department, Givaudan France, Route de Bazancourt, 51110 Pomacle, France
| | - Agathe Martinez
- Institut de Chimie
Moléculaire de Reims, UMR CNRS 7312, SFR CAP’SANTE, Université de Reims Champagne-Ardenne, Moulin de la Housse, BP 1039, 51687 Reims Cedex, France
| | - Jean-Hugues Renault
- Institut de Chimie
Moléculaire de Reims, UMR CNRS 7312, SFR CAP’SANTE, Université de Reims Champagne-Ardenne, Moulin de la Housse, BP 1039, 51687 Reims Cedex, France
| | - Jean-Marc Nuzillard
- Institut de Chimie
Moléculaire de Reims, UMR CNRS 7312, SFR CAP’SANTE, Université de Reims Champagne-Ardenne, Moulin de la Housse, BP 1039, 51687 Reims Cedex, France
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Vergier J, Fromonot J, Alvares De Azevedo Macedo A, Godefroy A, Marquant E, Guieu R, Tsimaratos M, Reynaud R. Rapid differential diagnosis of diabetes insipidus in a 7-month-old infant: The copeptin approach. Arch Pediatr 2018; 25:45-47. [DOI: 10.1016/j.arcped.2017.11.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Revised: 08/15/2017] [Accepted: 11/06/2017] [Indexed: 11/27/2022]
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Bakiri A, Hubert J, Reynaud R, Lambert C, Renault JH, Nuzillard JM. 13C NMR-based Dereplication of Natural Products: A New Computer-Aided Method for Quick Metabolite Identification. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- A Bakiri
- Institut de Chimie Moléculaire de Reims, Université de Reims Champagne-Ardenne, Reims, France
- Givaudan, Active Beauty, Pomacle, France
| | - J Hubert
- Institut de Chimie Moléculaire de Reims, Université de Reims Champagne-Ardenne, Reims, France
| | - R Reynaud
- Givaudan, Active Beauty, Pomacle, France
| | - C Lambert
- Givaudan, Active Beauty, Pomacle, France
| | - JH Renault
- Institut de Chimie Moléculaire de Reims, Université de Reims Champagne-Ardenne, Reims, France
| | - JM Nuzillard
- Institut de Chimie Moléculaire de Reims, Université de Reims Champagne-Ardenne, Reims, France
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Bakiri A, Hubert J, Reynaud R, Lanthony S, Harakat D, Renault JH, Nuzillard JM. Computer-Aided 13C NMR Chemical Profiling of Crude Natural Extracts without Fractionation. J Nat Prod 2017; 80:1387-1396. [PMID: 28414230 DOI: 10.1021/acs.jnatprod.6b01063] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A computer-aided, 13C NMR-based dereplication method is presented for the chemical profiling of natural extracts without any fractionation. An algorithm was developed in order to compare the 13C NMR chemical shifts obtained from a single routine spectrum with a set of predicted NMR data stored in a natural metabolite database. The algorithm evaluates the quality of the matching between experimental and predicted data by calculating a score function and returns the list of metabolites that are most likely to be present in the studied extract. The proof of principle of the method is demonstrated on a crude alkaloid extract obtained from the leaves of Peumus boldus, resulting in the identification of eight alkaloids, including isocorydine, rogersine, boldine, reticuline, coclaurine, laurotetanine, N-methylcoclaurine, and norisocorydine, as well as three monoterpenes, namely, p-cymene, eucalyptol, and α-terpinene. The results were compared to those obtained with other methods, either involving a fractionation step before the chemical profiling process or using mass spectrometry detection in the infusion mode or coupled to gas chromatography.
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Affiliation(s)
- Ali Bakiri
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, SFR CAP'SANTE, Université de Reims Champagne-Ardenne , Reims 51097, France
- Soliance-Givaudan , Pomacle 51110, France
| | - Jane Hubert
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, SFR CAP'SANTE, Université de Reims Champagne-Ardenne , Reims 51097, France
| | | | - Sylvie Lanthony
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, SFR CAP'SANTE, Université de Reims Champagne-Ardenne , Reims 51097, France
| | - Dominique Harakat
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, SFR CAP'SANTE, Université de Reims Champagne-Ardenne , Reims 51097, France
| | - Jean-Hugues Renault
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, SFR CAP'SANTE, Université de Reims Champagne-Ardenne , Reims 51097, France
| | - Jean-Marc Nuzillard
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, SFR CAP'SANTE, Université de Reims Champagne-Ardenne , Reims 51097, France
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Bakiri A, Plainchont B, de Paulo Emerenciano V, Reynaud R, Hubert J, Renault JH, Nuzillard JM. Computer-aided Dereplication and Structure Elucidation of Natural Products at the University of Reims. Mol Inform 2017; 36. [PMID: 28452185 DOI: 10.1002/minf.201700027] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 02/06/2017] [Accepted: 03/30/2017] [Indexed: 11/11/2022]
Abstract
Natural product chemistry began in Reims, France, in a pharmacognosy research laboratory whose main emphasis was the isolation and identification of bioactive molecules, following the guidelines of chemotaxonomy. The structure elucidation of new compounds of steadily increasing complexity favored the emergence of methodological work in nuclear magnetic resonance. As a result, our group was the first to report the use of proton-detected heteronuclear chemical shift correlation spectra for the computer-assisted structure elucidation of small organic molecules driven by atom proximity relationships and without relying on databases. The early detection of known compounds appeared as a necessity in order to deal more efficiently with complex plant extracts. This goal was reached by an original combination of mixture fractionation by centrifugal partition chromatography, analysis by 13 C NMR, digital data reduction and alignment, hierarchical data clustering, and computer database search.
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Affiliation(s)
- Ali Bakiri
- Institut de Chimie Moléculaire de Reims, CNRS, CPCBAI, Bât. 18, Moulin de la Housse, BP 1039, 51687, REIMS Cedex 2, France
| | - Bertrand Plainchont
- Institut de Chimie Moléculaire de Reims, CNRS, CPCBAI, Bât. 18, Moulin de la Housse, BP 1039, 51687, REIMS Cedex 2, France
| | | | - Romain Reynaud
- Soliance-Givaudan, Route de Bazancourt, 51110, POMACLE, France
| | - Jane Hubert
- Institut de Chimie Moléculaire de Reims, CNRS, CPCBAI, Bât. 18, Moulin de la Housse, BP 1039, 51687, REIMS Cedex 2, France
| | - Jean-Hugues Renault
- Institut de Chimie Moléculaire de Reims, CNRS, CPCBAI, Bât. 18, Moulin de la Housse, BP 1039, 51687, REIMS Cedex 2, France
| | - Jean-Marc Nuzillard
- Institut de Chimie Moléculaire de Reims, CNRS, CPCBAI, Bât. 18, Moulin de la Housse, BP 1039, 51687, REIMS Cedex 2, France
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Marquant E, Jullien N, Saveanu A, Quentien MH, Castinetti F, Galon-Faure N, Enjalbert A, Barlier A, Brue T, Reynaud R. Réseau GENHYPOPIT : analyse phénotype/génotype des hypopituitarismes congénitaux (1213 patients). Arch Pediatr 2016. [DOI: 10.1016/j.arcped.2016.09.028] [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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Hubert J, Angelis A, Aligiannis N, Rosalia M, Abedini A, Bakiri A, Reynaud R, Nuzillard JM, Gangloff SC, Skaltsounis AL, Renault JH. In Vitro Dermo-Cosmetic Evaluation of Bark Extracts from Common Temperate Trees. Planta Med 2016; 82:1351-1358. [PMID: 27352384 DOI: 10.1055/s-0042-110180] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Wood residues produced from forestry activities represent an interesting source of biologically active, high value-added secondary metabolites. In this study, 30 extracts from 10 barks of deciduous and coniferous tree species were investigated for their potential dermo-cosmetic use. The extracts were obtained from Fagus sylvatica, Quercus robur, Alnus glutinosa, Prunus avium, Acer pseudoplatanus, Fraxinus excelsior, Populus robusta, Larix decidua, Picea abies, and Populus tremula after three successive solid/liquid extractions of the barks with n-heptane, methanol, and methanol/water. All extracts were evaluated for their radical scavenging capacity, for their elastase, collagenase, and tyrosinase inhibitory activities, as well as for their antibacterial activity against gram-positive Staphylococcus aureus. In parallel, the global metabolite profiles of all extracts were established by 1D and 2D NMR and related to their biological activity. The results showed that the methanol extracts of Q. robur, A. glutinosa, L. decidua, and P. abies barks exhibit particularly high activities on most bioassays, suggesting their promising use as active ingredients in the dermo-cosmetic industry.
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Affiliation(s)
- Jane Hubert
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, SFR CAP'SANTE, UFR de Pharmacie, Université de Reims Champagne-Ardenne, Reims, France
| | - Apostolis Angelis
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, SFR CAP'SANTE, UFR de Pharmacie, Université de Reims Champagne-Ardenne, Reims, France
| | - Nektarios Aligiannis
- Division of Pharmacognosy and Natural Products Chemistry, School of Pharmacy, University of Athens, Panepistimioupolis, Zographou, Athens, Greece
| | - Michalea Rosalia
- Division of Pharmacognosy and Natural Products Chemistry, School of Pharmacy, University of Athens, Panepistimioupolis, Zographou, Athens, Greece
| | - Amin Abedini
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, SFR CAP'SANTE, UFR de Pharmacie, Université de Reims Champagne-Ardenne, Reims, France
| | - Ali Bakiri
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, SFR CAP'SANTE, UFR de Pharmacie, Université de Reims Champagne-Ardenne, Reims, France
| | | | - Jean-Marc Nuzillard
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, SFR CAP'SANTE, UFR de Pharmacie, Université de Reims Champagne-Ardenne, Reims, France
| | - Sophie C Gangloff
- Biomatériaux et Inflammation en Site Osseux, EA 4691, SFR CAP-Santé, UFR de Pharmacie, Université de Reims Champagne Ardenne, Reims, France
| | - Alexios-Leandros Skaltsounis
- Division of Pharmacognosy and Natural Products Chemistry, School of Pharmacy, University of Athens, Panepistimioupolis, Zographou, Athens, Greece
| | - Jean-Hugues Renault
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, SFR CAP'SANTE, UFR de Pharmacie, Université de Reims Champagne-Ardenne, Reims, France
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Banti T, Carsin A, Chabrol B, Reynaud R, Fabre A. [Infant food diversification. Assessment of practices in relation to French recommendations in pediatricians and pediatric residents in southern France]. Arch Pediatr 2016; 23:1018-1027. [PMID: 27642151 DOI: 10.1016/j.arcped.2016.07.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 07/05/2016] [Accepted: 07/07/2016] [Indexed: 11/28/2022]
Abstract
Infant food diversification has undergone a rapid succession of good practice recommendations in France, but there has been no assessment of pediatrician practices on food diversification. OBJECTIVE To assess the practices of pediatricians in relation to current recommendations of the French Society of Pediatrics on infant food diversification. METHODS This was an observational study conducted from 1 November 2014 to 31 March 2015. The study population consisted of 97 pediatricians in the Var department and 84 pediatric residents assigned to the University of Aix-Marseille in France. A questionnaire was sent by email or post to determine physician characteristics, food diversification methods in healthy children and those at atopic risk, and how the pediatric consultation was conducted. The expected answers were based on the most recent recommendations of the French Society of Pediatrics published in 2008, updated from 2003. In summary, breastfeeding is recommended up to 6 months. Food diversification can be started between 4 and 6 months in children with no allergy risk. Gluten, honey, legumes and cow's milk are introduced between 4 and 7 months, after 12 months and after 36 months, respectively. In atopic children, food diversification is delayed until after 6 months and the most allergenic foods (nuts, exotic fruits, peanuts, and shellfish) are introduced after the age of 12 months. RESULTS Eighty-four responses were obtained (51%): 50 pediatricians and 34 pediatric residents. Sixteen items were classified depending on whether or not an update after 2003 existed. Over 80% of the physicians responded as recommended for the recently updated items for the age of introduction of "solid food in healthy children", "gluten", "cow's milk protein hydrolysates", and "the time until introduction of cow's milk in the atopic child". At best, 65% of physicians responded in accordance with recommendations for items without a recent update, age of introduction of "cow's milk", "milk desserts", "animal proteins", "fats", "vegetables", "use of a hypoallergenic infant formula", and "breastfeeding extension with atopic child". Pediatric residents had the same responses as pediatricians. Seventy-two physicians did not consider the allergenic status of the children to delay the introduction of the most allergenic foods. The lack of complete updating the introduction of solid foods schedule could explain the differences between pediatrician practices and recommendations. Moreover, old recommendations on allergenic food eviction are still available. CONCLUSION Pediatricians and pediatric residents partially applied the current recommendations on the introduction of solid food.
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Affiliation(s)
- T Banti
- Unité de pédiatrie multidisciplinaire, CHU Timone-Enfants, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
| | - A Carsin
- Unité de pneumologie et médecine infantile, CHU Timone-Enfants, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France
| | - B Chabrol
- Unité de pneumologie et médecine infantile, CHU Timone-Enfants, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France
| | - R Reynaud
- Unité de pédiatrie multidisciplinaire, CHU Timone-Enfants, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France
| | - A Fabre
- Unité de pédiatrie multidisciplinaire, CHU Timone-Enfants, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France
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Abedini A, Chollet S, Angelis A, Borie N, Nuzillard JM, Skaltsounis AL, Reynaud R, Gangloff SC, Renault JH, Hubert J. Bioactivity-guided identification of antimicrobial metabolites in Alnus glutinosa bark and optimization of oregonin purification by Centrifugal Partition Chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1029-1030:121-127. [DOI: 10.1016/j.jchromb.2016.07.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 07/06/2016] [Accepted: 07/10/2016] [Indexed: 10/21/2022]
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Castinetti F, Daly AF, Stratakis CA, Caberg JH, Castermans E, Trivellin G, Rostomyan L, Saveanu A, Jullien N, Reynaud R, Barlier A, Bours V, Brue T, Beckers A. GPR101 Mutations are not a Frequent Cause of Congenital Isolated Growth Hormone Deficiency. Horm Metab Res 2016; 48:389-93. [PMID: 26797872 PMCID: PMC7566854 DOI: 10.1055/s-0042-100733] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Patients with Xq26.3 microduplication present with X-linked acrogigantism (X-LAG) syndrome, an early-childhood form of gigantism due to marked growth hormone (GH) hypersecretion from mixed GH-PRL adenomas and hyperplasia. The microduplication includes GPR101, which is upregulated in patients' tumor tissue. The GPR101 gene codes for an orphan G protein coupled receptor that is normally highly expressed in the hypothalamus. Our aim was to determine whether GPR101 loss of function mutations or deletions could be involved in patients with congenital isolated GH deficiency (GHD). Taking advantage of the cohort of patients from the GENHYPOPIT network, we studied 41 patients with unexplained isolated GHD. All patients had Sanger sequencing of the GPR101 gene and array comparative genome hybridization (aCGH) to look for deletions. Functional studies (cell culture with GH secretion measurements, cAMP response) were performed. One novel GPR101 variant, c.589 G>T (p.V197L), was seen in the heterozygous state in a patient with isolated GHD. In silico analysis suggested that this variant could be deleterious. Functional studies did not show any significant difference in comparison with wild type for GH secretion and cAMP response. No truncating, frameshift, or small insertion-deletion (indel) GPR101 mutations were seen in the 41 patients. No deletion or other copy number variation at chromosome Xq26.3 was found on aCGH. We found a novel GPR101 variant of unknown significance, in a patient with isolated GH deficiency. Our study did not identify GPR101 abnormalities as a frequent cause of GH deficiency.
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Affiliation(s)
- F Castinetti
- CNRS UMR7286, CRN2M, Faculté de médecine, Marseille, France and Reference Center for Rare Pituitary Diseases DEFHY, Assistance Publique Hôpitaux de Marseille, La Conception Hospital, Aix Marseille University, Marseille, France
| | - A F Daly
- Department of Endocrinology, Centre Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, Liège, Belgium
| | - C A Stratakis
- Section on Endocrinology and Genetics, Program on Developmental Endocrinology & Genetics (PDEGEN) & Pediatric Endocrinology Inter-institute Training Program, Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD), National Institutes of Health (NIH), Bethesda, USA
| | - J-H Caberg
- Department of Human Genetics, Centre Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, Liège, Belgium
| | - E Castermans
- Department of Human Genetics, Centre Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, Liège, Belgium
| | - G Trivellin
- Section on Endocrinology and Genetics, Program on Developmental Endocrinology & Genetics (PDEGEN) & Pediatric Endocrinology Inter-institute Training Program, Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD), National Institutes of Health (NIH), Bethesda, USA
| | - L Rostomyan
- Department of Endocrinology, Centre Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, Liège, Belgium
| | - A Saveanu
- CNRS UMR7286, CRN2M, Faculté de médecine, Marseille, France and Reference Center for Rare Pituitary Diseases DEFHY, Assistance Publique Hôpitaux de Marseille, La Conception Hospital, Aix Marseille University, Marseille, France
| | - N Jullien
- CNRS UMR7286, CRN2M, Faculté de médecine, Marseille, France and Reference Center for Rare Pituitary Diseases DEFHY, Assistance Publique Hôpitaux de Marseille, La Conception Hospital, Aix Marseille University, Marseille, France
| | - R Reynaud
- CNRS UMR7286, CRN2M, Faculté de médecine, Marseille, France and Reference Center for Rare Pituitary Diseases DEFHY, Assistance Publique Hôpitaux de Marseille, La Conception Hospital, Aix Marseille University, Marseille, France
| | - A Barlier
- CNRS UMR7286, CRN2M, Faculté de médecine, Marseille, France and Reference Center for Rare Pituitary Diseases DEFHY, Assistance Publique Hôpitaux de Marseille, La Conception Hospital, Aix Marseille University, Marseille, France
| | - V Bours
- Department of Human Genetics, Centre Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, Liège, Belgium
| | - T Brue
- CNRS UMR7286, CRN2M, Faculté de médecine, Marseille, France and Reference Center for Rare Pituitary Diseases DEFHY, Assistance Publique Hôpitaux de Marseille, La Conception Hospital, Aix Marseille University, Marseille, France
| | - A Beckers
- Department of Endocrinology, Centre Hospitalier Universitaire de Liège, University of Liège, Domaine Universitaire du Sart-Tilman, Liège, Belgium
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Gachelin E, Reynaud R, Dubus JC, Stremler-Le Bel N. [Detection and treatment of respiratory disorders in obese children: Obstructive sleep apnea syndrome and obesity hypoventilation syndrome]. Arch Pediatr 2015; 22:908-15. [PMID: 26251053 DOI: 10.1016/j.arcped.2015.06.012] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 04/20/2015] [Accepted: 06/18/2015] [Indexed: 10/23/2022]
Abstract
UNLABELLED Pediatric obesity may induce multiple complications, including cardiovascular and metabolic problems in adulthood. It may also cause respiratory disorders, which are not usually the first-intention diagnosis by physicians. The aim of this study was to evaluate how investigations had been performed in obese children referred to Timone Pediatric Hospital. PATIENTS AND METHODS A retrospective study of children referred to our department for severe non-syndromic obesity was conducted. The clinical features comprised history, anthropometric parameters, dietary habits, acanthosis nigricans, symptoms of obstructive sleep apnea syndrome (OSAS) as well as the paraclinical endocrine markers, blood gases, and sleep recordings. RESULTS Of 102 patients (mean age, 10.5±3.3 years; BMI Z-score, 4.52±1.5), 29.4% had OSAS symptoms (n=30). Nine had a pathological polysomnography confirming OSAS. Eight of them required ventilation: these children were the most severe with an earlier weight gain (2.17±1.2 years vs. 4.0±2.2 years; P=0.01) and a higher BMI Z-score (7.2±2.3 vs. 4.3±1.1; P=0.027). Obesity hypoventilation syndrome (OHS) was diagnosed in 3.9% of these children (n=4). CONCLUSION Diagnosis of OSAS and OHS, often overlooked in obese children, requires a systematic approach and early clinical detection of respiratory disorders. Better accessibility to sleep respiratory explorations would improve quality of care for these children.
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Affiliation(s)
- E Gachelin
- Service de pédiatrie spécialisée et médecine infantile, hôpital d'enfants de la Timone, Aix-Marseille université, AP-HM, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France.
| | - R Reynaud
- Service de pédiatrie multidisciplinaire, hôpital d'enfants de la Timone, Aix-Marseille université, AP-HM, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France
| | - J-C Dubus
- Service de pédiatrie spécialisée et médecine infantile, hôpital d'enfants de la Timone, Aix-Marseille université, AP-HM, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France
| | - N Stremler-Le Bel
- Service de pédiatrie spécialisée et médecine infantile, hôpital d'enfants de la Timone, Aix-Marseille université, AP-HM, 264, rue Saint-Pierre, 13385 Marseille cedex 5, France
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Hubert J, Chollet S, Purson S, Reynaud R, Harakat D, Martinez A, Nuzillard JM, Renault JH. Exploiting the Complementarity between Dereplication and Computer-Assisted Structure Elucidation for the Chemical Profiling of Natural Cosmetic Ingredients: Tephrosia purpurea as a Case Study. J Nat Prod 2015; 78:1609-1617. [PMID: 26103208 DOI: 10.1021/acs.jnatprod.5b00174] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The aqueous-ethanolic extract of Tephrosia purpurea seeds is currently exploited in the cosmetic industry as a natural ingredient of skin lotions. The aim of this study was to chemically characterize this ingredient by combining centrifugal partition extraction (CPE) as a fractionation tool with two complementary identification approaches involving dereplication and computer-assisted structure elucidation. Following two rapid fractionations of the crude extract (2 g), seven major compounds namely, caffeic acid, quercetin-3-O-rutinoside, ethyl galactoside, ciceritol, stachyose, saccharose, and citric acid, were unambiguously identified within the CPE-generated simplified mixtures by a recently developed (13)C NMR-based dereplication method. The structures of four additional compounds, patuletin-3-O-rutinoside, kaempferol-3-O-rutinoside, guaiacylglycerol 8-vanillic acid ether, and 2-methyl-2-glucopyranosyloxypropanoic acid, were automatically elucidated by using the Logic for Structure Determination program based on the interpretation of 2D NMR (HSQC, HMBC, and COSY) connectivity data. As more than 80% of the crude extract mass was characterized without need for tedious and labor-intensive multistep purification procedures, the identification tools involved in this work constitute a promising strategy for an efficient and time-saving chemical profiling of natural extracts.
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Affiliation(s)
- Jane Hubert
- †Institut de Chimie Moléculaire de Reims (UMR CNRS 7312), SFR CAP'SANTE, UFR de Pharmacie, Université de Reims Champagne-Ardenne, Reims, France
| | - Sébastien Chollet
- †Institut de Chimie Moléculaire de Reims (UMR CNRS 7312), SFR CAP'SANTE, UFR de Pharmacie, Université de Reims Champagne-Ardenne, Reims, France
| | - Sylvain Purson
- †Institut de Chimie Moléculaire de Reims (UMR CNRS 7312), SFR CAP'SANTE, UFR de Pharmacie, Université de Reims Champagne-Ardenne, Reims, France
- ‡Soliance-Givaudan, Pomacle, France
| | | | - Dominique Harakat
- †Institut de Chimie Moléculaire de Reims (UMR CNRS 7312), SFR CAP'SANTE, UFR de Pharmacie, Université de Reims Champagne-Ardenne, Reims, France
| | - Agathe Martinez
- †Institut de Chimie Moléculaire de Reims (UMR CNRS 7312), SFR CAP'SANTE, UFR de Pharmacie, Université de Reims Champagne-Ardenne, Reims, France
| | - Jean-Marc Nuzillard
- †Institut de Chimie Moléculaire de Reims (UMR CNRS 7312), SFR CAP'SANTE, UFR de Pharmacie, Université de Reims Champagne-Ardenne, Reims, France
| | - Jean-Hugues Renault
- †Institut de Chimie Moléculaire de Reims (UMR CNRS 7312), SFR CAP'SANTE, UFR de Pharmacie, Université de Reims Champagne-Ardenne, Reims, France
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Ledoyen A, Bresson V, Deneux I, Reynaud R, Retornaz K, Bosdure E, Dubus JC. [Bronchiectasis revealing triple A syndrome]. Arch Pediatr 2015; 22:746-9. [PMID: 26047740 DOI: 10.1016/j.arcped.2015.03.023] [Citation(s) in RCA: 1] [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: 06/11/2014] [Revised: 11/10/2014] [Accepted: 03/30/2015] [Indexed: 11/28/2022]
Abstract
We report on the case of a 3-year-old child presenting bilateral bronchiectasis due to recurrent pneumonia with esophageal achalasia. The final diagnosis was triple A syndrome. This presentation is particularly atypical and rare at this age.
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Affiliation(s)
- A Ledoyen
- Unité de médecine infantile et de pneumologie pédiatrique, CHU Timone-enfants, 264, rue Saint-Pierre, 13385 Marseille cedex 05, France
| | - V Bresson
- Unité de médecine infantile et de pneumologie pédiatrique, CHU Timone-enfants, 264, rue Saint-Pierre, 13385 Marseille cedex 05, France
| | - I Deneux
- Unité de pédiatrie multidisciplinaire, CHU Timone-enfants, 264, rue Saint-Pierre, 13385 Marseille cedex 05, France
| | - R Reynaud
- Unité de pédiatrie multidisciplinaire, CHU Timone-enfants, 264, rue Saint-Pierre, 13385 Marseille cedex 05, France
| | - K Retornaz
- Unité de médecine infantile, CHU Nord, chemin des Bourrely, 13915 Marseille cedex 20, France
| | - E Bosdure
- Unité de médecine infantile et de pneumologie pédiatrique, CHU Timone-enfants, 264, rue Saint-Pierre, 13385 Marseille cedex 05, France
| | - J-C Dubus
- Unité de médecine infantile et de pneumologie pédiatrique, CHU Timone-enfants, 264, rue Saint-Pierre, 13385 Marseille cedex 05, France; Unité de médecine infantile, CHU Nord, chemin des Bourrely, 13915 Marseille cedex 20, France.
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Essendoubi M, Gobinet C, Reynaud R, Angiboust JF, Manfait M, Piot O. Human skin penetration of hyaluronic acid of different molecular weights as probed by Raman spectroscopy. Skin Res Technol 2015; 22:55-62. [PMID: 25877232 DOI: 10.1111/srt.12228] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/15/2015] [Indexed: 11/26/2022]
Abstract
BACKGROUND Topical delivery of molecules into the human skin is one of the main issues in dermatology and cosmetology. Several techniques were developed to study molecules penetration into the human skin. Although widely accepted, the conventional methods such as Franz diffusion cells are unable to provide the accurate localization of actives in the skin layers. A different approach based on Raman spectroscopy has been proposed to follow-up the permeation of actives. It presents a high molecular specificity to distinguish exogenous molecules from skin constituents. METHODS Raman micro-imaging was applied to monitor the skin penetration of hyaluronic acids (HA) of different molecular weights. The first step, was the spectral characterization of these HA. After, we have determined spectral features of HA by which they can be detected in the skin. In the second part, transverse skin sections were realized and spectral images were recorded. RESULTS Our results show a difference of skin permeation of the three HA. Indeed, HA with low molecular weight (20-300 kDa) passes through the stratum corneum in contrast of the impermeability of high molecular weight HA (1000-1400 kDa). CONCLUSION Raman spectroscopy represents an analytical, non-destructive, and dynamic method to evaluate the permeation of actives in the skin layers.
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Affiliation(s)
- M Essendoubi
- MEDyC Unit, MéDIAN Biophotonique et Technologies pour la Santé, SFR CAP SANTE, CNRS UMR 7369, Faculty of Pharmacy, University of Reims Champagne - Ardenne (URCA), Reims, France
| | - C Gobinet
- MEDyC Unit, MéDIAN Biophotonique et Technologies pour la Santé, SFR CAP SANTE, CNRS UMR 7369, Faculty of Pharmacy, University of Reims Champagne - Ardenne (URCA), Reims, France
| | - R Reynaud
- Soliance, Route de Bazancourt, Pomacle, France
| | - J F Angiboust
- MEDyC Unit, MéDIAN Biophotonique et Technologies pour la Santé, SFR CAP SANTE, CNRS UMR 7369, Faculty of Pharmacy, University of Reims Champagne - Ardenne (URCA), Reims, France
| | - M Manfait
- MEDyC Unit, MéDIAN Biophotonique et Technologies pour la Santé, SFR CAP SANTE, CNRS UMR 7369, Faculty of Pharmacy, University of Reims Champagne - Ardenne (URCA), Reims, France
| | - O Piot
- MEDyC Unit, MéDIAN Biophotonique et Technologies pour la Santé, SFR CAP SANTE, CNRS UMR 7369, Faculty of Pharmacy, University of Reims Champagne - Ardenne (URCA), Reims, France
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Castinetti F, Reynaud R, Quentien MH, Jullien N, Marquant E, Rochette C, Herman JP, Saveanu A, Barlier A, Enjalbert A, Brue T. Combined pituitary hormone deficiency: current and future status. J Endocrinol Invest 2015; 38:1-12. [PMID: 25200994 DOI: 10.1007/s40618-014-0141-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 07/17/2014] [Indexed: 12/20/2022]
Abstract
Over the last two decades, the understanding of the mechanisms involved in pituitary ontogenesis has largely increased. Since the first description of POU1F1 human mutations responsible for a well-defined phenotype without extra-pituitary malformation, several other genetic defects of transcription factors have been reported with variable degrees of phenotype-genotype correlations. However, to date, despite the identification of an increased number of genetic causes of isolated or multiple pituitary deficiencies, the etiology of most (80-90 %) congenital cases of hypopituitarism remains unsolved. Identifying new etiologies is of importance as a post-natal diagnosis to better diagnose and treat the patients (delayed pituitary deficiencies, differential diagnosis of a pituitary mass on MRI, etc.), and as a prenatal diagnosis to decrease the risk of early death (undiagnosed corticotroph deficiency for instance). The aim of this review is to summarize the main etiologies and phenotypes of combined pituitary hormone deficiencies, associated or not with extra-pituitary anomalies, and to suggest how the identification of such etiologies could be improved in the near future.
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Affiliation(s)
- F Castinetti
- Aix-Marseille Université, CNRS, Centre de Recherche en Neurobiologie et Neurophysiologie de Marseille CRN2M UMR 7286, cedex 15, 13344, Marseille, France.
- APHM, Hôpital Timone Adultes, Service d'Endocrinologie, Diabète et Maladies Métaboliques, cedex 5, 13385, Marseille, France.
- Centre de Référence des Maladies Rares d'Origine Hypophysaire DEFHY, cedex 15, 13385, Marseille, France.
| | - R Reynaud
- Aix-Marseille Université, CNRS, Centre de Recherche en Neurobiologie et Neurophysiologie de Marseille CRN2M UMR 7286, cedex 15, 13344, Marseille, France
- APHM, Hôpital Timone Enfants, Service de Pédiatrie multidisciplinaire, cedex 5, 13385, Marseille, France
- Centre de Référence des Maladies Rares d'Origine Hypophysaire DEFHY, cedex 15, 13385, Marseille, France
| | - M-H Quentien
- Aix-Marseille Université, CNRS, Centre de Recherche en Neurobiologie et Neurophysiologie de Marseille CRN2M UMR 7286, cedex 15, 13344, Marseille, France
- APHM, Hôpital Timone Adultes, Service d'Endocrinologie, Diabète et Maladies Métaboliques, cedex 5, 13385, Marseille, France
- Centre de Référence des Maladies Rares d'Origine Hypophysaire DEFHY, cedex 15, 13385, Marseille, France
| | - N Jullien
- Aix-Marseille Université, CNRS, Centre de Recherche en Neurobiologie et Neurophysiologie de Marseille CRN2M UMR 7286, cedex 15, 13344, Marseille, France
| | - E Marquant
- Aix-Marseille Université, CNRS, Centre de Recherche en Neurobiologie et Neurophysiologie de Marseille CRN2M UMR 7286, cedex 15, 13344, Marseille, France
- APHM, Hôpital Timone Enfants, Service de Pédiatrie multidisciplinaire, cedex 5, 13385, Marseille, France
- Centre de Référence des Maladies Rares d'Origine Hypophysaire DEFHY, cedex 15, 13385, Marseille, France
| | - C Rochette
- Aix-Marseille Université, CNRS, Centre de Recherche en Neurobiologie et Neurophysiologie de Marseille CRN2M UMR 7286, cedex 15, 13344, Marseille, France
- APHM, Hôpital Timone Adultes, Service d'Endocrinologie, Diabète et Maladies Métaboliques, cedex 5, 13385, Marseille, France
- Centre de Référence des Maladies Rares d'Origine Hypophysaire DEFHY, cedex 15, 13385, Marseille, France
| | - J-P Herman
- Aix-Marseille Université, CNRS, Centre de Recherche en Neurobiologie et Neurophysiologie de Marseille CRN2M UMR 7286, cedex 15, 13344, Marseille, France
| | - A Saveanu
- Aix-Marseille Université, CNRS, Centre de Recherche en Neurobiologie et Neurophysiologie de Marseille CRN2M UMR 7286, cedex 15, 13344, Marseille, France
- APHM, Hôpital Timone Adultes, Service d'Endocrinologie, Diabète et Maladies Métaboliques, cedex 5, 13385, Marseille, France
- APHM, Hôpital de la Conception, Laboratoire de Biologie Moléculaire, 13005, Marseille, France
- Centre de Référence des Maladies Rares d'Origine Hypophysaire DEFHY, cedex 15, 13385, Marseille, France
| | - A Barlier
- Aix-Marseille Université, CNRS, Centre de Recherche en Neurobiologie et Neurophysiologie de Marseille CRN2M UMR 7286, cedex 15, 13344, Marseille, France
- APHM, Hôpital Timone Adultes, Service d'Endocrinologie, Diabète et Maladies Métaboliques, cedex 5, 13385, Marseille, France
- APHM, Hôpital de la Conception, Laboratoire de Biologie Moléculaire, 13005, Marseille, France
- Centre de Référence des Maladies Rares d'Origine Hypophysaire DEFHY, cedex 15, 13385, Marseille, France
| | - A Enjalbert
- Aix-Marseille Université, CNRS, Centre de Recherche en Neurobiologie et Neurophysiologie de Marseille CRN2M UMR 7286, cedex 15, 13344, Marseille, France
- APHM, Hôpital de la Conception, Laboratoire de Biologie Moléculaire, 13005, Marseille, France
- Centre de Référence des Maladies Rares d'Origine Hypophysaire DEFHY, cedex 15, 13385, Marseille, France
| | - T Brue
- Aix-Marseille Université, CNRS, Centre de Recherche en Neurobiologie et Neurophysiologie de Marseille CRN2M UMR 7286, cedex 15, 13344, Marseille, France
- APHM, Hôpital Timone Adultes, Service d'Endocrinologie, Diabète et Maladies Métaboliques, cedex 5, 13385, Marseille, France
- Centre de Référence des Maladies Rares d'Origine Hypophysaire DEFHY, cedex 15, 13385, Marseille, France
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Delmas O, Marrec C, Caietta E, Simonin G, Morel Y, Girard N, Roucher F, Sarles J, Chabrol B, Reynaud R. [Uncommon neonatal case of hypoglycemia: ACTH resistance syndrome]. Arch Pediatr 2014; 21:1353-8. [PMID: 25445127 DOI: 10.1016/j.arcped.2014.09.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 06/23/2014] [Accepted: 09/24/2014] [Indexed: 12/29/2022]
Abstract
Monitoring of blood glucose is usually reported to reduce the risk of hypoglycemia in term newborns with high risk factors and for prematurity in neonatal intensive care unit patients. Differential diagnosis has rarely been discussed. In the eutrophic term newborn, hypoglycemia remains rare and an etiological diagnosis must be made. Intensive management of neonatal hypoglycemia is required to prevent neurodevelopmental defects. Without evident cause or if hypoglycemia persists, a systematic review of possible causes should be made. We report isolated glucocorticoid deficiency diagnosed in an infant at 10 months of age. This boy had neonatal hypoglycemia and mild jaundice that had not been investigated. During his first 9 months of life, he presented frequent infections. At 10 months of age, febrile seizures occurred associated with shock, hypoglycemia, hyponatremia, mild hyperpigmentation, and coma. He was diagnosed with hypocortisolemia and elevated ACTH levels. Brain injury was revealed by MRI after resuscitation, with hypoxic-ischemic and hypoglycemic encephalopathy. The molecular studies demonstrated the presence of p.Asp107Asn and previously unreported frameshift p.Pro281GlnfsX9 MC2R gene mutations. A substitutive hormone therapy was provided and during a follow-up of 12 months no adrenal crisis was noted. We report an unusual case of familial glucocorticoid deficiency with severe neurological injury. This case demonstrates the importance of an appropriate etiological diagnosis in neonatal hypoglycemia.
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Affiliation(s)
- O Delmas
- Service de pédiatrie multidisciplinaire, pôle médical et chirurgical de pédiatrie, Aix-Marseille université, hôpital de la Timone-Enfants, Assistance publique des hôpitaux de Marseille, 13005 Marseille, France.
| | - C Marrec
- Service de pédiatrie multidisciplinaire, pôle médical et chirurgical de pédiatrie, Aix-Marseille université, hôpital de la Timone-Enfants, Assistance publique des hôpitaux de Marseille, 13005 Marseille, France
| | - E Caietta
- Service de neurologie pédiatrique, pôle médical et chirurgical de pédiatrie, Aix-Marseille université, hôpital de la Timone-Enfants, Assistance publique-Hôpitaux de Marseille, 13005 Marseille, France
| | - G Simonin
- Service de pédiatrie multidisciplinaire, pôle médical et chirurgical de pédiatrie, Aix-Marseille université, hôpital de la Timone-Enfants, Assistance publique des hôpitaux de Marseille, 13005 Marseille, France
| | - Y Morel
- Laboratoire d'endocrinologie moléculaire et maladies rares, centre de biologie et pathologie Est, université Lyon-Sud, CHU de Lyon, 69677 Bron, France
| | - N Girard
- Service de neuroradiologie diagnostique et interventionelle, pôle de radiologie, Aix-Marseille université, hôpital de la Timone, Assistance publique-Hôpitaux de Marseille, 13005 Marseille, France
| | - F Roucher
- Laboratoire d'endocrinologie moléculaire et maladies rares, centre de biologie et pathologie Est, université Lyon-Sud, CHU de Lyon, 69677 Bron, France
| | - J Sarles
- Service de pédiatrie multidisciplinaire, pôle médical et chirurgical de pédiatrie, Aix-Marseille université, hôpital de la Timone-Enfants, Assistance publique des hôpitaux de Marseille, 13005 Marseille, France
| | - B Chabrol
- Service de neurologie pédiatrique, pôle médical et chirurgical de pédiatrie, Aix-Marseille université, hôpital de la Timone-Enfants, Assistance publique-Hôpitaux de Marseille, 13005 Marseille, France
| | - R Reynaud
- Service de pédiatrie multidisciplinaire, pôle médical et chirurgical de pédiatrie, Aix-Marseille université, hôpital de la Timone-Enfants, Assistance publique des hôpitaux de Marseille, 13005 Marseille, France
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Hubert J, Nuzillard JM, Purson S, Hamzaoui M, Borie N, Reynaud R, Renault JH. Identification of natural metabolites in mixture: a pattern recognition strategy based on (13)C NMR. Anal Chem 2014; 86:2955-62. [PMID: 24555703 DOI: 10.1021/ac403223f] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Because of their highly complex metabolite profile, the chemical characterization of bioactive natural extracts usually requires time-consuming multistep purification procedures to achieve the structural elucidation of pure individual metabolites. The aim of the present work was to develop a dereplication strategy for the identification of natural metabolites directly within mixtures. Exploiting the polarity range of metabolites, the principle was to rapidly fractionate a multigram quantity of a crude extract by centrifugal partition extraction (CPE). The obtained fractions of simplified chemical composition were subsequently analyzed by (13)C NMR. After automatic collection and alignment of (13)C signals across spectra, hierarchical clustering analysis (HCA) was performed for pattern recognition. As a result, strong correlations between (13)C signals of a single structure within the mixtures of the fraction series were visualized as chemical shift clusters. Each cluster was finally assigned to a molecular structure with the help of a locally built (13)C NMR chemical shift database. The proof of principle of this strategy was achieved on a simple model mixture of commercially available plant secondary metabolites and then applied to a bark extract of the African tree Anogeissus leiocarpus Guill. & Perr. (Combretaceae). Starting from 5 g of this genuine extract, the fraction series was generated by CPE in only 95 min. (13)C NMR analyses of all fractions followed by pattern recognition of (13)C chemical shifts resulted in the unambiguous identification of seven major compounds, namely, sericoside, trachelosperogenin E, ellagic acid, an epimer mixture of (+)-gallocatechin and (-)-epigallocatechin, 3,3'-di-O-methylellagic acid 4'-O-xylopyranoside, and 3,4,3'-tri-O-methylflavellagic acid 4'-O-glucopyranoside.
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Affiliation(s)
- Jane Hubert
- Institut de Chimie Moléculaire de Reims (UMR CNRS 7312), SFR CAP'SANTE, Université de Reims Champagne-Ardenne , Reims, France
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Hamzaoui M, Renault JH, Reynaud R, Hubert J. Centrifugal partition extraction in the pH-zone-refining displacement mode: An efficient strategy for the screening and isolation of biologically active phenolic compounds. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 937:7-12. [DOI: 10.1016/j.jchromb.2013.07.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Revised: 07/19/2013] [Accepted: 07/23/2013] [Indexed: 11/27/2022]
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Hamzaoui M, Renault JH, Nuzillard JM, Reynaud R, Hubert J. Stepwise elution of a three-phase solvent system in centrifugal partition extraction: a new strategy for the fractionation and phytochemical screening of a crude bark extract. Phytochem Anal 2013; 24:367-373. [PMID: 23427023 DOI: 10.1002/pca.2418] [Citation(s) in RCA: 12] [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] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 11/02/2012] [Accepted: 12/07/2012] [Indexed: 06/01/2023]
Abstract
INTRODUCTION Tree bark represents an interesting source of bioactive molecules for the discovery of new pharmaceutical agents. However, the detailed screening of secondary metabolites in crude bark extracts is often hampered by the presence of tannins, which are difficult to separate from other plant constituents. OBJECTIVE In the present study, a new centrifugal partition extraction (CPE) method was developed in order to fractionate a crude bark extract of Anogeissus leiocarpus Guill. & Perr. (Combretaceae). METHODS A three-phase solvent system composed of n-heptane, methyl tert-butyl ether, acetonitrile and water was optimised for the stepwise elution at 20 mL/min of different phytochemical classes according to their hydrophobicity. Onedimensional and two-dimensional NMR analyses of the simplified fractions were then performed in order to characterise potentially interesting metabolites. RESULTS In one step, 5 g of the initial crude extract were efficiently fractionated to yield highly simplified fractions that contained triterpenes, ellagic acid derivatives, flavonoids and phenolic compounds. All undesired compounds, that is, the highly abundant water-soluble tannins (78.8%), were totally removed and each run was rapidly achieved in 90 min on a the multi-gram scale and with low solvent volumes. CONCLUSION Centrifugal partition extraction in the elution mode using a three-phase solvent system can thus be proposed as an efficient and cost-effective alternative for a rapid fractionation of crude bark extracts and for an effective screening of potentially active secondary metabolites.
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Affiliation(s)
- Mahmoud Hamzaoui
- UMR CNRS 7312, Université de Reims Champagne-Ardenne, Bât. 18, Moulin de la Housse, BP 1039 51687 Reims, Cedex 2, France
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Balieu S, Guilleret A, Reynaud R, Martinez A, Haudrechy A. Stereoselective synthesis of (2S,3S,4R,5S)-3,4-dihydroxy-2,5-dihydroxymethyl pyrrolidine from L-sorbose. Carbohydr Res 2013; 374:14-22. [PMID: 23603481 DOI: 10.1016/j.carres.2013.03.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2012] [Revised: 03/05/2013] [Accepted: 03/21/2013] [Indexed: 10/27/2022]
Abstract
One of the most frequently synthesized iminosugar derivatives is DMDP. Starting from L-sorbose, a practical method for the synthesis of derivatives of this five-membered iminocyclitol has been developed, involving straightforward steps and a convenient selective reduction of a ketoxime intermediate.
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Affiliation(s)
- Sébastien Balieu
- Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, Université de Reims, Reims, France
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