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| Registros recuperados: 15 | |
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| Guibert, Isis; Bourdreux, Flavien; Bonnard, Isabelle; Pochon, Xavier; Dubousquet, Vaimiti; Raharivelomanana, Phila; Berteaux-lecellier, Véronique; Lecellier, Gael. |
| Dimethylsulfoniopropionate (DMSP) is a key compound in the marine sulfur cycle, and is produced in large quantities in coral reefs. In addition to Symbiodiniaceae, corals and associated bacteria have recently been shown to play a role in DMSP metabolism. Numerous ecological studies have focused on DMSP concentrations in corals, which led to the hypothesis that increases in DMSP levels might be a general response to stress. Here we used multiple species assemblages of three common Indo-Pacific holobionts, the scleractinian corals Pocillopora damicornis and Acropora cytherea, and the giant clam Tridacna maxima and examined the DMSP concentrations associated with each species within different assemblages and thermal conditions. Results showed that the... |
| Tipo: Text |
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| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00636/74777/74951.pdf |
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| Hughes, Kristelle; Ho, Raimana; Greff, Stéphane; Filaire, Edith; Ranouille, Edwige; Chazaud, Claire; Herbette, Gaëtan; Butaud, Jean-françois; Berthon, Jean-yves; Raharivelomanana, Phila. |
| Hair loss is becoming increasingly prevalent as dietary and living habits change. The search for natural products to limit hair loss has led to tapping into traditional cosmetic knowledge. We studied three plants of the Polynesian cosmetopoeia, Bidens pilosa, Calophyllum inophyllum and Fagraea berteroana, to determine their ability to promote hair growth. Their chemical content was characterized by liquid chromatography coupled to mass spectrometry (LC-MS). Their proliferative activity on dermal papilla cells (DPCs) was assessed via MTT assay and molecular targets were evaluated by RT-qPCR analysis of seven factors involved in the modulation of the hair cycle, CCND1, LEF1, DKK1, WNT5A PPARD, TGFΒ1, PPARD and RSPO2. Our results show that our extracts... |
| Tipo: Text |
Palavras-chave: Polynesian plants; Ethnobotany; Cosmetopoeia; Dermal papilla; Hair growth; Wnt. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00652/76409/77453.pdf |
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| Raharivelomanana, Phila; Ansel, Jean-luc; Lupo, Elise; Mijouin, Lily; Guillot, Samuel; Butaud, Jean-francois; Ho, Raimana; Lecellier, Gael; Pichon, Chantal. |
| Calophyllum inophyllum L. (Calophyllaceae), locally called "tamanu" in French Polynesia, is an evergreen pantropical tree growing mostly along the seashores. Its barks, leaves, and fruits are still used in traditional medicine. The oil expressed from the nuts has been also traditionally used. Tamanu oil is topically applied on skins as well as mucous membrane lesions. This oil is especially recommended to heal all kinds of skin ailments. Bioassays and different assessments of Tamanu oil revealed numerous biological activities (antioxidant, anti-inflammatory, antibacterial, wound healing...), so bringing scientific evidence of beneficial effects of this oil on human skin healing. Such biological properties may explain the use of tamanu oil as an active... |
| Tipo: Text |
Palavras-chave: Huile de tamanu; Calophyllum inophyllum; Cosmétopée; Néoflavonoïdes; Ingrédient cosmétique; Tamanu oil; Calophyllum inophyllum; Cosmetopoeia; Neoflavonoids; Cosmeceutical. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00660/77218/78679.pdf |
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| Busconi, Matteo; Lucini, Luigi; Soffritti, Giovanna; Bernardi, Jamila; Bernardo, Letizia; Brunschwig, Christel; Lepers-andrzejewski, Sandra; Raharivelomanana, Phila; Fernandez, Jose A.. |
| Vanilla is a flavoring recovered from the cured beans of the orchid genus Vanilla. Vanilla xtahitensis is traditionally cultivated on the islands of French Polynesia, where vanilla vines were first introduced during the nineteenth century and, since the 1960s, have been introduced to other Pacific countries such as Papua New Guinea (PNG), cultivated and sold as "Tahitian vanilla," although both sensory properties and aspect are different. From an economic point of view, it is important to ensure V. xtahitensis traceability and to guarantee that the marketed product is part of the future protected designation of the origin "Tahitian vanilla" (PDO), currently in progress in French Polynesia. The application of metabolomics, allowing the detection and... |
| Tipo: Text |
Palavras-chave: Vanilla xtahitensis; Food metabolomics; Phenolics; Traceability; Authenticity. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00663/77530/79339.pdf |
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| Cassien, Mathieu; Mercier, Anne; Thétiot-laurent, Sophie; Culcasi, Marcel; Ricquebourg, Emilie; Asteian, Alice; Herbette, Gaëtan; Bianchini, Jean-pierre; Raharivelomanana, Phila; Pietri, Sylvia. |
| Tamanu oil from Calophyllum inophyllum L. has long been used in traditional medicine. Ethanol extraction was found the best strategy for recovering bioactive compounds from the resin part of Tamanu oil, yielding two neutral and acidic resins fractions with high phenolics, flavonoids and pyranocoumarins concentrations. A further cascade of LPLC/HPLC separations of neutral and acidic resin fractions allowed identifying fifteen metabolites, and among them, calanolide D and 12-oxocalanolide A (both in neutral fraction) were first identified from a natural source. All these extracts, subfractions and isolated metabolites demonstrated increased free radical scavenging, antioxidant, anti-inflammatory, antimicrobial and antimycobacterial activity compared to... |
| Tipo: Text |
Palavras-chave: Calophyllum inophyllum L; Tamanu oil; Ethanol-soluble resin extracts; Lipophilic antioxidants; Phenolics; Pyranocoumarins; Antimicrobial; Anti-inflammatory; UV protection; EPR spin trapping. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00677/78918/81283.pdf |
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| Hughes, Kristelle; Ho, Raimana; Chazaud, Claire; Hermitte, Stéphanie; Greff, Stéphane; Butaud, Jean-françois; Filaire, Edith; Ranouille, Edwige; Berthon, Jean-yves; Raharivelomanana, Phila. |
| Fagraea berteroana is a tree used in traditional medicine in various islands of the South Pacific. Here, we studied its hair growth-inducing properties as suggested by one of its Marquesan ethno-uses in haircare. The ethyl acetate extract of the fruits of F. berteroana (FEAE) and four resulting fractions (FEAE-F0, FEAE-F1, FEAE-F2, and FEAE-F3) were tested on hair follicle dermal papilla cells to determine their cell proliferative activity. Furthermore, RT-qPCR analysis enabled gene modulation analysis, while immunostaining of the β-catenin protein was used to follow protein regulation. We found that the plant extracts induced a controlled, dose-dependent cell proliferation. FEAE-F0 simultaneously down-regulated Bone Morphogenetic Protein 2 (BMP2) mRNA... |
| Tipo: Text |
Palavras-chave: Fagraea berteroana; Hair growth; Ethnocosmetology; Marquesas islands; Gentianaceae. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00678/79021/81426.pdf |
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| Leguillier, Teddy; Lecso-bornet, Marylin; Lemus, Christelle; Rousseau-ralliard, Delphine; Lebouvier, Nicolas; Hnawia, Edouard; Nour, Mohammed; Aalbersberg, William; Ghazi, Kamelia; Raharivelomanana, Phila; Rat, Patrice. |
| Background Calophyllum inophyllum L. (Calophyllaceae) is an evergreen tree ethno-medically used along the seashores and islands of the Indian and Pacific Oceans, especially in Polynesia. Oil extracted from the seeds is traditionally used topically to treat a wide range of skin injuries from burn, scar and infected wounds to skin diseases such as dermatosis, urticaria and eczema. However, very few scientific studies reported and quantified the therapeutic properties of Calophyllum inophyllum oil (CIO). In this work, five CIO from Indonesia (CIO1), Tahiti (CIO2, 3), Fiji islands (CIO4) and New Caledonia (CIO5) were studied and their cytotoxic, wound healing, and antibacterial properties were presented in order to provide a scientific support to their... |
| Tipo: Text |
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| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00667/77934/80119.pdf |
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| Abdallah, Florence; Lecellier, Gael; Raharivelomanana, Phila; Pichon, Chantal. |
| Rauvolfia nukuhivensis is a well-known plant used for its wide range of beneficial effects in Marquesas islands. It is made up of diverse indole alkaloids and is used as traditional medicine for skin application. The actual mechanism behind the virtue of this plant is still unknown. Hence, in this study we aimed at deciphering the impact of R. nukuhivensis on skin immune system in context of (1) homeostasis, (2) pathogen infection and (3) inflammation. Here we show that R. nukuhivensis enhances cellular metabolic activity and wound healing without inducing cellular stress or disturbing cellular homeostasis. It reinforces the epithelial barrier by up-regulating hBD-1. Nevertheless, in pathogenic stress, R. nukuhivensis acts by preparing the immune system to... |
| Tipo: Text |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00659/77130/78499.pdf |
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| Dubousquet, Vaimiti; Gros, Emmanuelle; Berteaux-lecellier, Veronique; Viguier, Bruno; Raharivelomanana, Phila; Bertrand, Cédric; Lecellier, Gael J.. |
| Temperature can modify membrane fluidity and thus affects cellular functions and physiological activities. This study examines lipid remodelling in the marine symbiotic organism, Tridacna maxima, during a time series of induced thermal stress, with an emphasis on the morphology of their symbiont Symbiodinium. First, we show that the French Polynesian giant clams harbour an important proportion of saturated fatty acids (SFA), which reflects their tropical location. Second, in contrast to most marine organisms, the total lipid content in giant clams remained constant under stress, though some changes in their composition were shown. Third, the stress-induced changes in fatty acid (FA) diversity were accompanied by an upregulation of genes involved in lipids... |
| Tipo: Text |
Palavras-chave: Thermal stress; Fatty acids; Differential expression; Antioxidant; Symbiodinium; Tridacna maxima. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00361/47195/79514.pdf |
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| Metoyer, Benjamin; Lebouvier, Nicolas; Hnawia, Edouard; Herbette, Gaetan; Thouvenot, Louis; Asakawa, Yoshinori; Nour, Mohammed; Raharivelomanana, Phila. |
| Volatile components of seven species of the Bazzanioideae sub-family (Lepidoziaceae) native to New Caledonia, including three endemic species (Bazzania marginata, Acromastigum caledonicum and A. tenax), were analyzed by GC-FID-MS in order to index these plants to known or new chemotypes. Detected volatile constituents in studied species were constituted mainly by sesquiterpene, as well as diterpene compounds. All so-established compositions cannot successfully index some of them to known chemotypes but afforded the discovery of new chemotypes such as cuparane/fusicoccane. The major component of B. francana was isolated and characterized as a new zierane-type sesquiterpene called ziera-12(13), 10(14)-dien-5-ol (23). In addition, qualitative intraspecies... |
| Tipo: Text |
Palavras-chave: Liverwort; Bazzania; Acromastigum; Sesquiterpene; Diterpene; Bis(bibenzyl); Biosynthesis; Zierane; Vittatin. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00660/77222/78670.pdf |
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| Ginigini, Joape; Lecellier, Gael J.; Nicolas, Mael; Nour, Mohammed; Hnawia, Edouard; Lebouvier, Nicolas; Herbette, Gaetan; Lockhart, Peter; Raharivelomanana, Phila. |
| Background: Different parts of the tree Calophyllum inophyllum L. (nuts, leaves, roots, bark, fruits, nut oil and resin) are used as traditional medicines and cosmetics in most of the Pacific Islands. The oil efficiency as a natural cure and in traditional cosmetics has been largely described throughout the South Pacific, which led us to investigate C. inophyllum's chemical and genetic diversity. A correlative study of the nut resin and leaf DNA from three distinct archipelagos in the South Pacific was carried out in order to identify diversity patterns in C. inophyllum across the South Pacific. Methods: Calophyllum inophyllum plants were sampled from French Polynesia, New Caledonia and Fiji. We extracted tamanu oil (nut oil) resin for chemo-diversity... |
| Tipo: Text |
Palavras-chave: Calophyllum inophyllum; Chemodiversity; South Pacific; Neoflavonoids; Oil; Biodiversity. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00659/77126/78506.pdf |
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| Registros recuperados: 15 | |
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