Platycarya strobilacea (Platycarya strobilacea): Benefits, Dosage, Safety & Evidence

Questions fréquentes

How does Platycarya strobilacea work as an anti-inflammatory?

Platycarya strobilacea contains active compounds including tannins, flavonoids, and juglone derivatives. These constituents provide astringent and anti-inflammatory actions. Tannins work by precipitating proteins to tighten and tone tissues, which helps manage skin conditions and reduce secretions. Flavonoids contribute antioxidant activity that may reduce oxidative stress associated with inflammation. Evidence for these mechanisms is rated Level C, based primarily on phytochemical analysis and traditional use rather than extensive clinical trials.

Does Platycarya strobilacea interact with any medications?

There is currently no robust clinical data regarding specific drug interactions for Platycarya strobilacea (Evidence Level D). However, the herb contains significant amounts of tannins. Tannins can potentially bind to certain medications, such as iron supplements and alkaloids, reducing their absorption in the digestive tract. Patients taking prescription medications should consult a healthcare provider before use. Separating administration times by at least two hours may help mitigate potential binding risks.

What is the recommended dosage for Platycarya strobilacea?

The traditional adult dosage for Platycarya strobilacea is approximately 2 grams of dried bark prepared as a tea or decoction (Evidence Level C). This preparation is typically used for its astringent properties on the skin or internally for limited durations. Standardized commercial extracts are not widely available, so dosing relies on traditional preparation methods. Users should avoid exceeding this amount without professional guidance due to limited safety data.

Is Platycarya strobilacea safe to use during pregnancy?

Platycarya strobilacea is considered unsafe during pregnancy and should be avoided (Evidence Level D). As a member of the walnut family (Juglandaceae), it contains juglone derivatives and tannins which may stimulate uterine contractions or pose potential toxicity risks to the developing fetus. Traditional contraindications explicitly advise against use by pregnant women. Women who are breastfeeding should also avoid this herb due to insufficient safety data regarding transfer through breast milk.

What is Platycarya strobilacea used for in traditional medicine?

Platycarya strobilacea is traditionally used in East Asian folk medicine to treat various skin conditions, including dermatitis, eczema, and superficial sores. The herb's high tannin content provides strong astringent effects, helping to dry weeping wounds and tighten skin tissue. It has also been used internally for gastrointestinal issues like diarrhea. While these uses are supported by traditional practice (Evidence Level C), clinical trials confirming efficacy for specific conditions are currently limited.

Fiche d'information compilée à partir de PubMed

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

Platycarya strobilacea is a woody deciduous tree endemic to East Asia, used in traditional medicine for its antibacterial, anti-inflammatory, and antioxidant properties [PMID:34387671, PMID:38443357].

Contexte

Platycarya strobilacea belongs to the walnut family (Juglandaceae) and is an ecologically important, wind-pollinated tree [PMID:38443357]. It is widely distributed in the mountains of East Asia [PMID:37216901].

Usages traditionnels

It is used as a traditional Chinese medicine, specifically the dry infructescence, and is effective in the treatment of allergic rhinitis and chronic sinusitis [PMID:34387671]. It has also been used as an aromatic tree/incense since at least the 18th century [PMID:30452159, PMID:21440271].

Composés actifs

The plant contains volatile constituents, phenols, terpenoids, and carbohydrates [PMID:34387671]. Key compounds include ellagic acid, gallic acid, and ellagitannins (such as pedunculagin, casuarictin, strictinin, and platycaryanin E) [PMID:34299409, PMID:24911045]. Other identified constituents include cyclic diarylheptanoids (platycary A-E), eudesmane sesquiterpenoids, ursolic acid, and beta-sitosterol [PMID:33419270, PMID:30452159, PMID:30204385].

Mécanisme d'action

The herb exhibits antioxidant activity by scavenging free radicals and increasing SOD and GSH-Px activities [PMID:28653917]. It may inhibit TNF-alpha-induced monocyte adhesion to colon epithelial cells by preventing the nuclear translocation of NF-kappaB [PMID:18563354]. In nasopharyngeal carcinoma cells, it induces methuosis via the overexpression of Rac1 [PMID:28669961].

Preuves cliniques

Preuve AChronic rhinosinusitis and rhinitis

Xiangju Capsules (containing P. strobilacea infructescence) show efficacy and safety in clinical treatment [PMID:35850854]

Preuve BSkin wrinkles

Fruit extract and ellagic acid increased type I collagen mRNA expression; clinical measurements showed a statistically significant difference (p < 0.05) [PMID:20587350]

Preuve DFocal cerebral ischemia (mouse model)

Oral supplement of leaf extract (20-100 mg/kg) protected the brain via antioxidative properties [PMID:31949989]

Preuve DPeriodontitis (in vitro/in vivo)

Leaf extract inhibited TNF-alpha production and bone loss induced by Porphyromonas gingivalis-derived LPS [PMID:30172945]

Preuve DHair growth (mouse model)

Topical application of extract promoted hair growth in male C57BL/6 mice [PMID:25320710]

Preuve DNasopharyngeal Carcinoma (in vitro)

Synthèse des preuves

Evidence is primarily based on in vitro studies and animal models (Level D), with some limited clinical data on cosmeceutical use (Level B) and a meta-analysis regarding a multi-herb capsule for rhinosinusitis (Level A).

Sources PubMed

1.PMID: 38443357 (2024) — Chromosome-level genome assembly of Platycarya strobilacea. · Scientific data
2.PMID: 34387671 (2022) — Platycarya strobilacea Sieb. et Zucc.: a review of its traditional uses, botany, phytochemistry, pharmacology and toxicology. · The Journal of pharmacy and pharmacology
3.PMID: 33419270 (2020) — New Cyclic Diarylheptanoids from Platycarya strobilacea. · Molecules (Basel, Switzerland)
4.PMID: 31949989 (2019) — Platycarya strobilacea leaf extract protects mice brain with focal cerebral ischemia by antioxidative property. · Anatomy & cell biology
5.PMID: 34299409 (2021) — Ellagitannin Digestion in Moth Larvae and a New Dimeric Ellagitannin from the Leaves of Platycarya strobilacea. · Molecules (Basel, Switzerland)

Platycarya strobilacea

Sources et citations

Calculer une dose sûre de Platycarya strobilacea