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Cette fiche a été compilée à partir de résumés PubMed (NIH) avec l'assistance d'une IA. Chaque affirmation factuelle est citée par un article PubMed réel (voir la liste des sources). Elle n'a pas encore été révisée par un humain — confirmez auprès d'un professionnel de santé avant utilisation.
Compilé à partir de 30 articles PubMed · modèle : gemma4:31b
Résumé
Harungana madagascariensis is a widespread African pioneer tree used in traditional medicine for microbial infections, malaria, and skin care [PMID:40693248, 26721224, 38486384].
Contexte
Harungana madagascariensis (Hypericaceae) is a dominant native pioneer tree species found in Africa, including the volcanic oceanic island of Mauritius [PMID:40421372, 41438116].
Usages traditionnels
In Cameroonian folk medicine, it is used to treat malaria, typhoid fever, and a wide range of human diseases including microbial infections [PMID:26721224, 40693248]. It is also traditionally used for skin care [PMID:38486384].
Composés actifs
The plant contains prenylated anthranoids (e.g., kenganthranols A-M, harunganols A-I, harunmadagascarins A-D), anthraquinones, anthrones (e.g., madagascenone A and B, bazouanthrone), and flavanones such as astilbin [PMID:33711738, 26727375, 15924922, 16483735, 17329893, 26621758]. Other identified constituents include alkaloids, terpenoids, saponins, phenols, flavonoids, tannins, anthocyanins, betulinic acid, and lupeol [PMID:40693248, 15924922, 27267830].
Mécanisme d'action
A plant extract (HME) induces genes stimulated by retinol, including the upregulation of all RARs and RXRs (including RXRγ) [PMID:35238059]. Certain compounds exhibit α-glucosidase inhibitory activity [PMID:33711738, 26727375, 26621758, 16499321]. Other fractions regulate collagen and melanin biosynthesis gene expression (TYR, TRP-1, COL1A1, MMP-1) and inhibit 15-lipoxygenase and nitric oxide (NO) in macrophages [PMID:38486384].
Preuves cliniques
Preuve BSkin Aging
A cosmetic cream containing H. madagascariensis extract (HME) showed anti-aging effects indistinguishable from a retinol cream regarding wrinkles under the eyes, ptosis, color homogeneity, smoothness, plumpness, firmness, and elasticity over 28 to 56 days [PMID:37155516]
Preuve DSalmonellosis (Typhoid Fever)
Aqueous leaf extract significantly reduced viable Salmonella Typhimurium in a rat model and could stop salmonellosis after 10 days of treatment [PMID:26721224]
Preuve DBacterial Infections
Leaf extracts demonstrate in vitro antibacterial activity against B. subtilis, S. aureus, E. coli, and S. typhi [PMID:11933123], and against oral bacteria implicated in dental caries and gingivitis [PMID:16809192].
Preuve DMalaria
Isolated compounds from root bark, specifically bazouanthrone, showed potency against Plasmodium falciparum in vitro [PMID:17329893].
Sécurité et effets indésirables
In rats, intraperitoneal administration of isosaline leaf and stem-bark extracts (400 mg/kg) caused significant elevation of liver, kidney, and serum alanine and aspartate aminotransferase activities, as well as elevated serum urea, total proteins, triglycerides, and cholesterol [PMID:15305323]. High doses (≥100mg/kg) of aqueous leaf extract in rats showed biochemical and histological side effects [PMID:26721224].
Synthèse des preuves
Evidence consists primarily of in vitro studies and animal models (Level D), with one preliminary clinical study on human subjects for cosmetic application (Level B).
Sources PubMed
1.PMID: 33711738 (2021) — Further prenylated anthranoids from Harungana madagascariensis. · Phytochemistry
2.PMID: 35238059 (2022) — A Harungana madagascariensis extract with retinol-like properties: Gene upregulations and protein expressions in human fibroblasts and skin explants. · International journal of cosmetic science
3.PMID: 26727375 (2016) — α-Glucosidase Inhibitory Prenylated Anthranols from Harungana madagascariensis. · Journal of natural products
4.PMID: 40421372 (2025) — A scoping review of tropical pioneer trees' roles for restoration and conservation management: Harungana madagascariensis (Hypericaceae) a widespread African species as a model. · PeerJ
Aucune monographie gouvernementale directe n'est disponible pour cette plante. Le contenu ci-dessous est généré par IA et n'a pas été vérifié par rapport à une source gouvernementale faisant autorité. Utilisez les liens de recherche pour consulter les sources officielles avant de vous fier à ces informations.
— Harungana madagascariensis (Hypericaceae) is a key phorophyte for native epiphytes and lianas during ecological restoration: case study on an oceanic island.
· PeerJ
6.PMID: 23663227 (2013) — Protective effects of stem bark of Harungana madgascariensis on the red blood cell membrane. · BMC complementary and alternative medicine
7.PMID: 37155516 (2023) — In a Preliminary Study on Human Subjects, a Cosmetic Cream Containing a Harungana madagascariensis Plant Extract Induces Similar Anti-Aging Effects to a Retinol-Containing Cream. · Clinical, cosmetic and investigational dermatology
8.PMID: 38486384 (2025) — Bioactive Fractions Isolated from Harungana madagascariensis Lam. and Psorospermum aurantiacum Engl. Regulate Collagen and Melanin Biosynthesis Gene Expression in UVB-irradiated Cells with Additional Anti-inflammatory Potential. · Current drug research reviews
9.PMID: 26721224 (2016) — Antityphoid properties and toxicity evaluation of Harungana madagascariensis Lam (Hypericaceae) aqueous leaf extract. · Journal of ethnopharmacology
10.PMID: 40693248 (2025) — Phytochemical Composition, Antibacterial Activity, Modes of Action, and Antibiotic Resistance-Modifying Effects of Harungana madagascariensis (Hypericaceae) Against Multidrug-Resistant Pseudomonas aeruginosa. · Scientifica
11.PMID: 11933123 (2002) — Antibacterial activity of Harungana madagascariensis leaf extracts. · Phytotherapy research : PTR
12.PMID: 25785542 (2015) — Nutrient Composition and In Vitro Antioxidant Properties of Harungana madagascariensis Stembark Extracts. · Journal of medicinal food
13.PMID: 18372133 (2008) — Anti-protozoan activities of Harungana madagascariensis stem bark extract on trichomonads and malaria. · Journal of ethnopharmacology
14.PMID: 28890153 (2017) — Medicinal plants for in vitro antiplasmodial activities: A systematic review of literature. · Parasitology international
15.PMID: 17352491 (2007) — Antimicrobial prenylated anthracene derivatives from the leaves of Harungana madagascariensis. · Journal of natural products
16.PMID: 33777157 (2021) — Parts, Period, and Extraction Solvents as Parameters Influencing Harungana madagascariensis Lam. ex Poir. (Hypericaceae) Antibacterial Activity. · Evidence-based complementary and alternative medicine : eCAM
17.PMID: 40773488 (2025) — Anti-staphylococcal activity, antibiotic-resistance modulation effects and action of Harungana madagascariensis (Hypericaceae) fruit extracts on the antioxidant system of multidrug-resistant Staphylococcus aureus. · PloS one
18.PMID: 15924922 (2005) — Prenylated anthronoid antioxidants from the stem bark of Harungana madagascariensis. · Phytochemistry
19.PMID: 41343431 (2025) — Correction: Anti-staphylococcal activity, antibiotic-resistance modulation effects and action of Harungana madagascariensis (Hypericaceae) fruit extracts on the antioxidant system of multidrug-resistant Staphylococcus aureus. · PloS one
20.PMID: 27267830 (2016) — Antibacterial activities of the methanol extracts, fractions and compounds from Harungana madagascariensis Lam. ex Poir. (Hypericaceae). · Journal of ethnopharmacology
21.PMID: 26621758 (2016) — New α-glucosidase inhibiting anthracenone from the barks of Harungana madagascariensis Lam. · Natural product research
22.PMID: 16483735 (2006) — Isolation and in vitro antibacterial activity of astilbin, the bioactive flavanone from the leaves of Harungana madagascariensis Lam. ex Poir. (Hypericaceae). · Journal of ethnopharmacology
23.PMID: 15305323 (2004) — Biochemical changes elicited by isosaline leaf and stem-bark extracts of Harungana madagascariensis in the rat. · Phytotherapy research : PTR
24.PMID: 16809192 (2006) — Potentiation of the bactericidal activity of Harungana madagascariensis Lam. ex Poir. (Hypericaceae) leaf extract against oral bacteria using poly (D, L-lactide-co-glycolide) nanoparticles: in vitro study. · Acta odontologica Scandinavica
25.PMID: 26258052 (2015) — Nanomedicines for dental applications-scope and future perspective. · International journal of pharmaceutical investigation
26.PMID: 16499321 (2006) — Alpha-glucosidase inhibitory anthranols, kenganthranols A-C, from the stem bark of Harungana madagascariensis. · Journal of natural products
27.PMID: 17329893 (2007) — Anti-plasmodial activity of some constituents of the root bark of Harungana madagascariensis LAM. (Hypericaceae). · Chemical & pharmaceutical bulletin
28.PMID: 17385560 (2007) — In vitro antimicrobial activity of the leaf extract of Harungana madagascariensis Lam. Ex Poir. (Hypericaceae) against strains causing otitis externa in dogs and cats. · Acta veterinaria Hungarica
29.PMID: 15125572 (2004) — Formation of particles in aqueous infusions of the medical plant Harungana madagascariensis. · Die Pharmazie
30.PMID: 19069532 (2007) — Medicinal plants can be good source of antioxidants: case study in Cameroon. · Pakistan journal of biological sciences : PJBS