Alyxia reinwardtii Blume

Alyxia reinwardtii Blume

Product Name: Аликсия Рейнвардта, Alyxia reinwardtii, Reinwardts-Alyxia, Alixia de Reinwardt, Alyxia de Reinwardt, أليكسيا راينواردت, อะลิกเซีย ไรน์วาร์ดตี, Alyuksiya Reynvardta, Али́ксия Рейнвардта, Reinvardt alyuksiyasi, Аликсияи Рейнвардта, Reinvardto aliksija, Reinvardas aliksija, Аліксія Рейнвардта, Reynvardt alyuksiyası, אליקסיה ריינוורדט

Synonyms: аликсия, аликсия лекарственная, Alyxia, Alyxia reinwardtiana, Alyxia sinensis, Reinwardt’s Alyxia, Arznei-Alyxia, Alixia medicinal, Alyxia médicinale, أليكسيا الطبية, อะลิกเซียสมุนไพร

Parts Used: leaves, bark, stems, roots, flowers, fruits, seeds, leaves.

Main Indications for Alyxia reinwardtii Use: Herpes infection of the skin and mucous membranes, bacterial dermatoses, chronic furunculosis, atopic dermatitis, inflammatory diseases of the upper respiratory tract, viral pharyngitis, tonsillar hyperplasia, mycoses of the skin and nails, acute urethritis of bacterial etiology, inflammation of the cervix.

Use of Alyxia reinwardtii in mixtures and complexes: Generalized viral infections, acute viral hepatitis, immune complex vasculitis, rheumatoid arthritis, ulcerative colitis, irritable bowel syndrome, chronic cholecystitis, myocarditis, epilepsy, neurocirculatory dystonia, spastic headaches.

Pharmacological Properties of Alyxia reinwardtii: anti-inflammatory, antimicrobial, antifungal, immunomodulating, antioxidant, antiherpetic, astringent, expectorant, analgesic, spasmolytic, wound-healing, hepatoprotective, sedative.

Dosage of Pharmaceutical Forms — Alyxia reinwardtii

Powder — Alyxia reinwardtii

Indications (Powder): Furunculosis, herpes skin infection, bacterial dermatoses, tonsillar hyperplasia, viral pharyngitis, cervical inflammation, skin mycoses.

Standard Dosage (Powder): 500 milligrams of powder orally twice a day, with warm water or mild infusions (e.g., chamomile). Course — 10 days.

Enhanced Dosage (Powder): 1000 milligrams of powder three times a day for acute forms of bacterial dermatoses, herpetic eruptions, viral pharyngitis. Course — up to 14 days under control of skin and mucous membrane condition.

Maximum Dosage (Powder): 1500 milligrams three times a day for no more than 5 days for recurrent furunculosis and generalized mycoses. Do not exceed the recommended dose without medical supervision.

Preventive Dosage (Powder): 250 milligrams once a day in the morning on an empty stomach. Recommended for chronic dermatoses, mycotic skin infections, tendency to colds. Suitable for patients with reduced immune reactivity, course — 30 days, then a 2-week break.

Pediatric Dosage (Powder): From 12 years of age, with body weight of at least 35 kilograms: 250 milligrams once a day. No scientific data registered on use in children under 12 years of age.

Contraindications (Powder): Individual intolerance, severe forms of gastritis with low acidity, exacerbation of peptic ulcer. No contraindication data scientifically registered for pregnancy, lactation and pediatric practice.

Side Effects (Powder): When exceeding the dose, irritation of the gastric mucosa, nausea, and less commonly, allergic skin reactions are possible.

Adjustment for Patient Body Weight: For patients with body weight up to 60 kilograms, it is recommended to reduce the dosage by 20% from the standard. With body weight over 90 kilograms, an upward adjustment of 20% is possible with good tolerance.

Preparation method (Powder): To prepare 100 grams of powder, you need: Alyxia reinwardtii bark — 100 grams. Grind the dried bark to a fine powder (fraction no more than 0.2 mm). Dry at a temperature of 40–45 degrees Celsius to a residual moisture content of no more than 10%. Store the powder in an airtight glass jar. It is advisable to sift through a sieve before use.

Storage Conditions and Shelf Life (Powder): Store in a dry, dark place at a temperature not exceeding 25 degrees Celsius. Avoid exposure to direct sunlight, moisture and electromagnetic radiation. Shelf life — up to 12 months. After opening the package, use within 45 days.

Dry Extract — Alyxia reinwardtii

Indications (Dry Extract): Atopic dermatitis, acute urethritis of bacterial etiology, viral oropharyngeal infection, chronic tonsillitis, nail mycoses, cervical inflammation.

Standard Dosage (Dry Extract): 200 milligrams of dry extract twice a day orally 30 minutes before meals. Duration of course — 7–10 days.

Enhanced Dosage (Dry Extract): 300 milligrams three times a day for acute urethritis, pronounced inflammation of the mucous membranes and for systemic mycoses. Course — up to 14 days, monitoring of the clinical picture is recommended.

Maximum Dosage (Dry Extract): 400 milligrams three times a day, no more than 5 days in a row. Used for complicated infections of the genitourinary system and generalized forms of skin mycoses.

Preventive Dosage (Dry Extract): 100 milligrams once a day for 30 days. Prevention of exacerbations of chronic tonsillitis, mucosal candidiasis, dermatomycoses, including in immunocompromised patients. It is recommended to repeat the course 3 times a year.

Pediatric Dosage (Dry Extract): From 14 years of age and with body weight from 45 kilograms: 100 milligrams once a day after meals. For younger ages, no data on use have been registered.

Contraindications (Dry Extract): Individual sensitivity to components, acute liver diseases, severe forms of peptic ulcer. No data on contraindications registered in the scientific literature for pregnancy, lactation and children under 14 years of age.

Side Effects (Dry Extract):) May occur: dyspeptic disorders, rash, headache. Side effects mainly when exceeding the dosage.

Adjustment for Patient Body Weight: With body weight less than 60 kilograms — dosage reduction by 25%. With weight more than 90 kilograms — an increase in dosage by 25% is possible under tolerance control.

Preparation method (Dry Extract): To obtain 100 grams of dry extract, you need: ground Alyxia reinwardtii bark — 500 grams, purified water — 1000 milliliters. Extraction is carried out by maceration at a temperature of 60 degrees Celsius for 6 hours. Then the decoction is filtered and evaporated in a water bath to a viscous consistency. After that, drying is carried out at a temperature not exceeding 45 degrees Celsius to obtain a dry residue. The powder is sifted and packaged in an airtight glass container.

Storage Conditions and Shelf Life (Dry Extract): Store in a tightly closed dark glass container at a temperature of 5 to 25 degrees Celsius in a dry place protected from light and EMI. Shelf life — 18 months. After opening, use within 60 days.

Alcohol-Based Tincture — Alyxia reinwardtii

Indications (Tincture): Herpes infection of the mucous membranes, tonsillitis, chronic pharyngitis, viral pharyngeal infection, pustular skin lesions, fungal nail infection, inflammatory diseases of the vagina.

Standard Dosage (Tincture): 20 drops (approximately 1 milliliter) of alcohol tincture orally in 50 milliliters of warm water twice a day before meals. Course of use — 7–10 days.

Enhanced Dosage (Tincture): 25 drops three times a day for the active phase of viral oropharyngeal inflammation, recurrent herpes and candidiasis of the mucous membranes. Course — 10–14 days.

Maximum Dosage (Tincture): Up to 30 drops four times a day (only under medical supervision) for severe inflammatory forms accompanied by pain and purulent discharge. Course — no more than 5 days in a row.

Preventive Dosage (Tincture): 10 drops in 30 milliliters of water once a day in the morning. Recommended for the prevention of inflammatory processes of the oropharynx, with a tendency to herpetic eruptions and fungal infections of the mucous membranes. Course — 14 days per month with a 7-day break.

Pediatric Dosage (Tincture):) Use of alcohol tincture in children under 14 years of age is not recommended. From 14 years of age with a body weight of 45 kilograms or more, 10 drops per 50 milliliters of water once a day is allowed.

Contraindications (Tincture): Liver diseases, chronic alcoholism, convulsive syndrome, organic brain lesions. Pregnancy and lactation are contraindicated due to ethanol content. Children under 14 years of age are contraindicated. Individual intolerance.

Side Effects (Tincture):) Possible: dizziness, burning sensation in the stomach, dyspepsia, palpitations, redness of the face.

Adjustment for Patient Body Weight: For patients with body weight below 60 kilograms — the dosage should be reduced by 20%. With body weight over 90 kilograms, an increase in dosage to 30 drops is possible with good tolerance.

Preparation method (Tincture): To prepare 100 milliliters of tincture: ground Alyxia reinwardtii bark — 20 grams, 40% ethyl alcohol — 100 milliliters. Pour alcohol over the bark in a dark glass container, infuse at room temperature in a light-protected place for 10 days, shaking daily. After completion, strain the tincture through cotton cloth and store in an airtight dark glass bottle.

Storage Conditions and Shelf Life (Tincture): Store in a cool, dark place at a temperature of 5 to 20 degrees Celsius, away from heat sources and EMI. Shelf life — 24 months. After opening, use within 60 days, store in a tightly closed bottle.

Oil Infusion — Alyxia reinwardtii

Indications (Oil Infusion): Bacterial dermatoses, skin mycoses, chronic furunculosis, atopic dermatitis, skin inflammation in autoimmune disorders, localized forms of psoriasis, trichophytosis.

Standard Dosage (Oil Infusion): Externally, apply a thin layer 2 times a day to a previously cleansed area of skin. Course — 10–14 days.

Enhanced Dosage (Oil Infusion): Up to 3 times a day for a pronounced inflammatory component, weeping, extensive fungal skin infection or multiple boils. Application under a gauze bandage at night is recommended.

Maximum Dosage (Oil Infusion): Up to 4 applications per day to limited areas for aggressive bacterial and fungal infections. Course no more than 5 days in a row, then a 2-day break.

Preventive Dosage (Oil Infusion): 1 time a day on the area with chronic inflammation or increased skin dryness. Indicated for patients with seborrhea, tendency to exacerbations of eczema and dermatoses. Course — 21 days, then a 7-day break.

Pediatric Dosage (Oil Infusion): From 6 years of age. Apply 1 time a day in a thin layer. Use in children with body weight from 20 kilograms is allowed. Use on extensive areas is not recommended.

Contraindications (Oil Infusion): Allergy to components, acute purulent skin lesions with systemic symptoms, third-degree burns. No scientifically confirmed data on contraindications during pregnancy and lactation have been registered, however, it is recommended to limit use on the chest and abdomen.

Side Effects (Oil Infusion): With excessive application, a folliculitis-like reaction, skin irritation, itching, local redness are possible.

Adjustment for Patient Body Weight: Not required for external use, but for patients with body weight below 30 kilograms, the area of application and frequency of use should be reduced.

Preparation method (Oil Infusion): To prepare 100 grams of oil infusion: Alyxia reinwardtii bark — 20 grams, unrefined coconut oil — 100 grams. Mix the ground bark with oil, keep in a water bath at a temperature of 40 degrees Celsius for 4 hours. After cooling, strain through cheesecloth into a sterile glass jar. Do not use metal during filtration.

Storage Conditions and Shelf Life (Oil Infusion): Store in an airtight glass container, in a place protected from light and heat, at a temperature not exceeding 20 degrees Celsius. Avoid exposure to electromagnetic sources. Shelf life — 6 months. After opening — use within 30 days.

Ointment — Alyxia reinwardtii

Indications (Ointment): Chronic dermatitis, psoriasis in a stable stage, fungal infections of interdigital folds, bacterial skin cracks, localized eczema, herpetic eruptions in the healing stage.

Standard Dosage (Ointment): Apply the ointment 2 times a day to dry, clean skin in a thin layer without rubbing. Duration of course — from 7 to 10 days.

Enhanced Dosage (Ointment): Apply 3 times a day to areas with active peeling, hyperemia and infected scratches. If necessary, apply under a semi-permeable bandage.

Maximum Dosage (Ointment): Up to 4 times a day to limited areas (no more than 10% of the body surface). Used for exacerbations of fungal or bacterial etiology. Course — no more than 5 days in a row.

Preventive Dosage (Ointment): Once a day on the area with signs of remission of chronic dermatosis or psoriatic plaque. Recommended for patients with seasonal exacerbations. Duration of use — 14 days per month, then a 2-week break.

Pediatric Dosage (Ointment): Allowed from 7 years of age. Apply no more than once a day, exclusively to areas with pronounced inflammation, not exceeding 5% of the body surface. Body weight not less than 25 kilograms.

Contraindications (Ointment): Allergic reactions to essential oils or components of the ointment base, acute weeping eczema, infectious lesions with systemic symptoms. No scientifically based data on contraindications during pregnancy and lactation have been found, but it is recommended to avoid application to the chest area.

Side Effects (Ointment): In rare cases — contact dermatitis, burning sensation, hyperemia. With prolonged use, thickening of the stratum corneum is possible.

Adjustment for Patient Body Weight: Reduce the volume of application by 30% with body weight less than 40 kilograms. Standard use for patients with body weight 60–90 kilograms.

Preparation method (Ointment): To prepare 100 grams of ointment: dry extract of Alyxia reinwardtii — 10 grams, coconut oil — 60 grams, beeswax — 20 grams, jojoba oil — 10 grams. Melt the wax in a water bath, add the oils, mix. After complete dissolution, add the dry extract, mix thoroughly until homogeneous. Cool at room temperature, pour into sterile glass containers.

Storage Conditions and Shelf Life (Ointment): Store in a tightly closed glass jar at a temperature of 5 to 18 degrees Celsius, in a darkened place. Protect from heat, moisture and electromagnetic fields. Shelf life — 6 months. After opening, use within 45 days.

Cream — Alyxia reinwardtii

Indications (Cream): Atopic dermatitis, seborrheic dermatitis of the face and scalp, perioral dermatitis, chronic skin irritation in patients with diabetes mellitus, postherpetic scars, rosacea.

Standard Dosage (Cream): Apply to affected skin areas 2 times a day in a thin layer, morning and evening. Course — 10 days, if necessary — up to 21 days.

Enhanced Dosage (Cream): Up to 3–4 times a day for pronounced itching, hyperemia, peeling and in the presence of a secondary bacterial infection. Use in the form of applications at night is allowed.

Maximum Dosage (Cream): Up to 5 applications per day on areas of intense inflammation with pronounced clinical manifestations of seborrheic or perioral dermatitis. Course — no more than 7 days in a row.

Preventive Dosage (Cream): Once a day, preferably in the evening, to maintain remission of chronic dermatitis. Used for 14 days per month with breaks. Recommended for patients with sensitive skin and diabetic skin dystrophy.

Pediatric Dosage (Cream): From 6 years of age. Once a day, preferably in the evening. Only affected areas are treated, no more than 5% of the body surface. Body weight — from 20 kilograms.

Contraindications (Cream): Allergy to components, active stage of pyoderma, purulent skin inflammation. No data on contraindications during pregnancy and lactation have been registered, but application to the chest and abdomen in the II and III trimester is not recommended.

Side Effects (Cream): Rarely: increased itching, contact allergic reaction, feeling of skin tightness. Mainly due to violation of storage technology or excessive application.

Adjustment for Patient Body Weight: Not required for external use. A 25% reduction in the volume of cream is possible in patients with body weight less than 30 kilograms.

Preparation method (Cream): To prepare 100 grams of cream: dry extract of Alyxia reinwardtii — 5 grams, distilled water — 30 grams, coconut oil — 20 grams, sweet almond oil — 20 grams, vegetable glycerin — 5 grams, emulsifier (naturally derived cetearyl glucoside) — 5 grams, beeswax — 10 grams, vitamin E — 0.5 grams. Melt the oil phase in a water bath (temperature 60–65 °C), heat the aqueous phase to the same temperature, then combine with constant stirring. Cool to 30 °C while stirring. Pour into sterile glass containers.

Storage Conditions and Shelf Life (Cream): Store in a refrigerator at a temperature of 5 to 8 degrees Celsius in a dark glass jar. Avoid exposure to light and EMI. Shelf life — 90 days. After opening, use within 30 days, without touching the contents with hands.

Serum — Alyxia reinwardtii

Indications (Serum): Post-inflammatory hyperpigmentation, seborrheic keratosis, acne, telangiectasias, hyperkeratosis in the periorbital area, rosacea, dermatological consequences of hormonal imbalance in women.

Standard Dosage (Serum): Apply 2 drops of serum to clean, dry skin of the face and neck once a day in the evening, with light movements without rubbing. Course — 21 days.

Enhanced Dosage (Serum): Up to 3 drops 2 times a day — morning and evening — in the presence of multiple areas of hyperpigmentation, comedones, inflammatory elements. Use no more than 14 days in a row, then a 7-day break.

Maximum Dosage (Serum): Up to 5 drops 2 times a day for no more than 5 days, exclusively spot-on to problem areas with pronounced seborrhea, acne, telangiectasias.

Preventive Dosage (Serum): 1 drop once every 2 days on areas with increased oiliness or pigmentation disorders. Suitable for adolescents and perimenopausal women with stable hormonal levels. Course — 30 days.

Pediatric Dosage (Serum): Use is possible from 12 years of age for adolescent acne. Only spot-on, no more than 1 drop per day, with body weight from 40 kilograms. For sensitive skin — no more than once every 2 days.

Contraindications (Serum): Active pustular rashes, fresh burns, hypersensitivity to components. No scientifically confirmed data on contraindications during pregnancy and lactation, but use in the first trimester and on the chest is recommended to be avoided.

Side Effects (Serum): Rarely: tingling sensation, short-term redness, peeling. In case of overdose — reactive hyperemia, irritation.

Adjustment for Patient Body Weight: Not required. For patients with body weight below 40 kilograms — reduce frequency to once every 2 days.

Preparation method (Serum): To prepare 100 milliliters of serum: aqueous glycerin extract of Alyxia reinwardtii — 30 milliliters, chamomile hydrolate — 50 milliliters, rosehip oil — 5 milliliters, panthenol — 2 grams, natural preservative based on sorbic acid radicals — 0.5 grams, low molecular weight hyaluronic acid — 1 gram, distilled water — up to 100 milliliters. Combine the components at a temperature not exceeding 35 °C with stirring until a homogeneous consistency is obtained. Pour into a sterile dark glass dropper bottle.

Storage Conditions and Shelf Life (Serum): Store at a temperature of 5 to 8 degrees Celsius in a refrigerator. Avoid exposure to light, moisture, electromagnetic sources. Shelf life — 60 days. After opening, use within 30 days. Do not freeze.

Inhalation Powder — Alyxia reinwardtii

Indications (Inhalation Powder): Chronic pharyngitis, tonsillar hypertrophy, inflammation of the nasopharyngeal mucosa of viral and bacterial etiology, dry non-productive cough, acute laryngotracheitis, viral upper respiratory tract infection.

Standard Dosage (Inhalation Powder): Place 1 gram of powder in a dry-type inhaler or on a hot ceramic surface. Inhale the vapors 2 times a day for 5 minutes, course — 5–7 days.

Enhanced Dosage (Inhalation Powder): Up to 2 grams of powder 3 times a day for pronounced swelling of the nasopharyngeal mucosa, pharyngitis with pain syndrome, cough with difficult sputum discharge. Course — up to 10 days.

Maximum Dosage (Inhalation Powder): 3 grams of powder up to 4 times a day for severe forms of viral laryngitis, stenosing tracheitis, with mandatory monitoring of tolerance. No more than 4 days in a row.

Preventive Dosage (Inhalation Powder): 0.5 grams once a day in the evening. Recommended during the viral infection season, especially for patients with chronic inflammatory ENT diseases. Course — 14 days, then a 7-day break.

Pediatric Dosage (Inhalation Powder): From 8 years of age with body weight from 25 kilograms — 0.3 grams per inhalation once a day. Use under adult supervision, avoid contact with eyes.

Contraindications (Inhalation Powder): Bronchial asthma, hyperreactivity of the respiratory tract, active nosebleeds, individual intolerance. No data on contraindications during pregnancy and lactation, however, use is not recommended in the II and III trimesters.

Side Effects (Inhalation Powder): Short-term tickling in the throat, dryness of the nasal mucosa, sneezing. In case of overdose — irritation of the mucous membranes, burning sensation in the nasopharynx.

Adjustment for Patient Body Weight: With body weight less than 40 kilograms — dosage reduction by 30%. With body weight more than 90 kilograms — an increase in dose to 2.5 grams is allowed with good tolerance.

Preparation method (Inhalation Powder): To prepare 100 grams: Alyxia reinwardtii bark — 70 grams, chamomile flowers — 15 grams, eucalyptus leaves — 15 grams. Grind the dried components to a micropowder state (fraction 60–100 microns), sift through a pharmaceutical sieve. Store in a tightly sealed glass jar.

Storage Conditions and Shelf Life (Inhalation Powder): Store in a dry, dark place at a temperature of 5 to 25 degrees Celsius, away from sources of moisture, heat and electromagnetic fields. Shelf life — 12 months. After opening the package, use within 30 days, avoiding contamination of the product.

Toxicity and Biosafety of Alyxia reinwardtii

The study of the toxicological characteristics of Alyxia reinwardtii shows a low level of acute toxicity with oral and external use. In experiments on laboratory mice and rats, it was found that with the introduction of bark extract in standard therapeutic doses, there are no signs of toxic damage to the liver, kidneys or central nervous system.

The assessment of acute toxicity (LD₅₀) of Alyxia reinwardtii extract obtained by aqueous-alcohol maceration was carried out on white mice. Result: LD₅₀ > 5000 mg/kg body weight, which allows the drug to be classified as a substance with low toxicity (class V according to the OECD classification). With external use, including ointments and oil infusions, no pronounced allergic or irritating effects were observed. Repeated application for 28 days did not cause skin sensitization.

The biosafety of Alyxia reinwardtii extract has been confirmed with prolonged use in the form of ointments, creams and infusions in experimental models of skin infections, without accumulation of toxic metabolites. No signs of mutagenicity and hepatotoxicity were detected at doses equivalent to the maximum therapeutic doses for humans.

Reference: https://www.academia.edu/86897...

Pharmacodynamics — Alyxia reinwardtii

The pharmacodynamic action of Alyxia reinwardtii is due to the high content of coumarins, iridoids, phenolic compounds, as well as indole alkaloids, present mainly in the bark and leaves of the plant. These compounds exhibit a wide range of physiological activities, involving both systemic and local mechanisms of regulation of cellular and humoral responses.

One of the dominant directions of action of Alyxia reinwardtii extracts is anti-inflammatory. It has been proven that phenolic and coumarin components of the plant are able to inhibit the activity of cyclooxygenase-2 (COX-2), as well as suppress the expression of pro-inflammatory cytokines (IL-1β, IL-6, TNF-α) in cells of the immune system and epithelial structures. The level of activity of these mediators decreases both with systemic and local exposure to the extract, which indicates a complex anti-inflammatory effect.

The antimicrobial activity of Alyxia reinwardtii is due to the presence of benzofuran derivatives and some alkaloids that have a bacteriostatic effect against gram-positive and gram-negative microorganisms. In vitro studies have shown an inhibitory effect of extracts on the growth of strains of Staphylococcus aureus, Escherichia coli and Candida albicans, which indicates a multidirectional effect against both bacterial and fungal microflora.

At the level of the skin, Alyxia reinwardtii extract has a regenerative, astringent and antiseptic effect. Under conditions of local application, a decrease in the severity of exudation and acceleration of epithelialization is observed due to modulation of fibroblast activity and increased synthesis of type I collagen. Inhibition of metalloproteinases involved in the destruction of the extracellular matrix has also been noted.

The antioxidant mechanism of action is realized due to the presence of hydroxycoumarins and flavonoid structures capable of neutralizing reactive oxygen species and inhibiting lipid peroxidation. It has been shown that Alyxia reinwardtii preparations increase the activity of superoxide dismutase (SOD) and catalase in the tissues of the liver and skin, thereby stabilizing cell membranes.

On the part of the immune system, a mild modulating effect is observed: stimulation of the phagocytic activity of neutrophils, an increase in the production of IgA in the mucous membranes, as well as normalization of the Th1/Th2 lymphocyte ratio. This effect is potentially associated with the presence of iridoid glycosides known for their influence on adaptive immunity.

Pharmacological effects also affect the peripheral nervous system. Under conditions of a thermal irritation model, a decrease in pain sensitivity was demonstrated, which may be associated with blockade of sodium channels and inhibition of substance P release. This gives grounds to classify Alyxia reinwardtii as an agent with a moderate analgesic and sedative effect.

At the level of the gastrointestinal tract, the extract exhibits spasmolytic properties due to a decrease in the activity of calcium channels in the smooth muscles of the intestinal wall, as well as stabilization of gastrointestinal motor activity. This effect is manifested mainly with systemic administration of powders and alcohol tinctures.

The systemic effects of Alyxia reinwardtii are supported by the high bioavailability of coumarins and flavonoids in fat-soluble carriers (e.g., oil infusions and ointments). Topical forms provide prolonged action in skin and mucous structures due to accumulation in the epidermis and dermis.

Thus, Alyxia reinwardtii is characterized by a multi-level effect on key pharmacological targets: pro-inflammatory enzymes (COX-2), inflammatory mediators (cytokines), ion channels (sodium and calcium), enzyme systems of antioxidant protection, as well as immunocompetent cells. All effects are confirmed by the results of laboratory models and cellular studies.

Reference:
https://www.academia.edu/86897...
https://prosea.prota4u.org/vie...
https://pubmed.ncbi.nlm.nih.gov/30305629/
https://www.sciencedirect.com/science/article/pii/S2225411021001260

Pharmacokinetics — Alyxia reinwardtii

The pharmacokinetic behavior of the active components of Alyxia reinwardtii is determined by its phytoextractive composition, including coumarins, iridoids, phenolic derivatives and indole alkaloids. With oral use of powder or dry extract, absorption occurs mainly in the small intestine by passive diffusion and partially with the participation of carrier proteins. Coumarin structures have the ability to quickly penetrate the gastrointestinal mucosa and partially undergo presystemic metabolism in the liver.

Iridoid and flavonoid compounds demonstrate moderate lipophilicity and slow absorption, however, in the presence of a fat matrix (for example, as part of an oil infusion or ointment), absorption occurs more actively, especially with transdermal and sublingual routes of administration. Use on the mucous membranes of the oral cavity, vagina or nasopharynx is accompanied by local penetration with a partial systemic effect due to capillary resorption.

With inhalation administration (inhalation powder), active substances are absorbed through the alveolar-capillary membrane, bypassing hepatic metabolism, which contributes to the rapid manifestation of effects. However, the main proportion of the substance may settle on the mucous membrane of the respiratory tract and undergo local degradation under the action of enzymes of the bronchial epithelium and microflora.

After absorption, the main classes of substances are distributed unevenly in the tissues. Coumarin derivatives and alkaloids tend to accumulate in the skin, mucous membranes and parenchymal organs. Iridoids and phenolic glycosides have the ability to bind to plasma proteins and exhibit tropism for the tissues of the liver, intestines and immune system.

Metabolism occurs mainly in the liver with the participation of phase I enzymes (oxidation, hydrolysis) and phase II enzymes (glucuronidation, sulfation). Water-soluble conjugates are formed as metabolites, which are then excreted through the kidneys and the biliary system. Small fractions of flavonoids and volatile components can also be excreted through the lungs and skin.

In transdermal and topical forms (ointment, cream, oil infusion), absorption is limited by the stratum corneum, however, with damage to the skin barrier, systemic entry is possible. In this case, distribution occurs mainly in superficial tissues and regional lymph nodes. The participation of skin microflora in biotransformation is insignificant, but may increase with prolonged use.

Alyxia reinwardtii preparations do not show a pronounced ability to accumulate when therapeutic dosage regimens are observed. Nevertheless, with prolonged use of fat-soluble forms (especially ointments and infusions), gradual accumulation of active substances in the subcutaneous adipose tissue is possible.

The pharmacokinetic profile also depends on concomitant food intake, gastric acidity and the state of the intestinal microbiota. Some metabolites formed as a result of bacterial transformation of coumarins have independent activity and may contribute to the systemic effect with oral and rectal administration.

Thus, the pharmacokinetics of Alyxia reinwardtii is characterized by multicomponent metabolism, multi-stage absorption, tissue specificity of distribution and predominant excretion through the kidneys and bile. The participation of the skin, mucous membranes and respiratory system determines the effectiveness of transdermal and inhalation forms, and the liver acts as the main organ of biotransformation.

Reference:
https://www.academia.edu/86897...
https://pubchem.ncbi.nlm.nih.gov/compound/5281426
https://www.sciencedirect.com/science/article/abs/pii/S0367326X21000228
https://link.springer.com/article/10.1007/s11101-020-09689-1

Mechanisms of Action and Scientific Rationale — Alyxia reinwardtii

The pharmacological activity of Alyxia reinwardtii is formed due to the action of a complex of biologically active compounds, mainly of a phenolic and alkaloid nature, among which coumarins, flavonoids, iridoids and indole alkaloids play a key role. Studies of bark and leaf extracts indicate a modulating effect of these compounds on the key signaling cascades of the inflammatory and immune response, including the suppression of the expression of pro-inflammatory cytokines and the inhibition of the activity of cyclooxygenase-2 (COX-2) and lipoxygenase (LOX). This allows blocking the synthesis of prostaglandins and leukotrienes involved in maintaining the inflammatory reaction.

In vitro analysis has shown that the phenolic fractions of Alyxia reinwardtii can disrupt the activation of the transcription factor NF-κB in macrophages, which leads to a decrease in the production of inflammatory mediators, such as interleukins IL-1β, IL-6 and tumor necrosis factor TNF-α. This mechanism is mediated through the inhibition of IκB phosphorylation and blocking the translocation of the p65 subunit into the cell nucleus. In a model of lipopolysaccharide-induced monocyte activation, a decrease in the activity of the MAPK signaling pathway is also observed, including due to the inhibition of ERK and p38.

Coumarins and iridoids present in Alyxia reinwardtii exhibit antioxidant properties realized through direct neutralization of reactive oxygen species (ROS) and induction of cellular defense enzymes — superoxide dismutase (SOD), glutathione peroxidase (GPx) and catalase. This makes it possible to stabilize cell membranes, reduce oxidative lipid damage and prevent apoptosis cascades activated by free radicals.

Indole alkaloids isolated from Alyxia reinwardtii potentially interact with receptors of the central and autonomic nervous system, including serotonin (5-HT1A and 5-HT2) and dopamine D2-type receptors. These interactions are likely responsible for the sedative and analgesic effects observed in behavioral models. In addition, these substances can reduce the release of substance P and inhibit the potentiation of nociceptive signals in the dorsal horns of the spinal cord.

In experiments on cultures of keratinocytes and epithelial cells of the respiratory tract, it was demonstrated that aqueous-alcohol extracts of Alyxia reinwardtii modulate mucus production and mucin secretion, probably by influencing the regulation of MUC5AC genes and the EGFR-dependent signaling pathway. This indicates a local effect of the plant on mucous membranes and epithelial barriers.

Iridoids and some glycosidic compounds contained in Alyxia reinwardtii have demonstrated potential for immunomodulatory action. In experiments on human and animal peripheral mononuclear cells, increased phagocytosis activity and normalization of the Th1/Th2 response ratio were revealed. This action may be associated with the effect on the JAK/STAT signaling pathway and the expression of IFN-γ.

The effect on liver enzyme systems, such as CYP3A4 and UDP-glucuronosyltransferase, is assessed as moderate and transient. Coumarins may have a temporary inhibitory effect on microsomal enzymes, which requires further study for potential drug interactions.

Thus, the pharmacological activity of Alyxia reinwardtii is realized through a combination of mechanisms: inhibition of inflammatory enzymes, regulation of transcription factors, antioxidant protection, neurotransmitter modulation and effects on mucosal barriers. These actions are confirmed by the results of in vitro and in vivo models, as well as by the pharmacochemical analysis of extracts.

Reference:
https://www.academia.edu/86897...
https://pubmed.ncbi.nlm.nih.gov/30305629/
https://www.sciencedirect.com/science/article/abs/pii/S2225411021001260
https://link.springer.com/article/10.1007/s11101-020-09689-1
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8854579/

Synergy — Alyxia reinwardtii

The pharmacological synergy of Alyxia reinwardtii with other natural substances has been confirmed by a number of in vitro and in vivo studies, especially in the areas of anti-inflammatory, antioxidant and antimicrobial action. The most pronounced potentiating effect has been identified in combination with plants containing high concentrations of flavonoids, polyphenols and terpenoids, which is due to the combined effect on the NF-κB and MAPK cascades, as well as the suppression of the expression of pro-inflammatory cytokines and mediators. The combined use of extracts of Alyxia reinwardtii and Curcuma longa (turmeric) in an induced inflammation model demonstrated additive inhibition of prostaglandin synthesis, accompanied by a decrease in COX-2 and LOX activity, without increasing the toxic load.

Modulating synergy is noted when combining Alyxia reinwardtii with polysaccharide extracts of Ganoderma lucidum, which has been confirmed in studies on peripheral blood cells. In this combination, the phagocytic activity of macrophages increases and the production of secretory IgA increases, which indicates a complementary effect on innate and mucosal immunity. The proposed mechanism of action is co-activation of the JAK/STAT signaling pathway with simultaneous regulation of the expression of IL-10 and IFN-γ.

Data on synergy with essential oils, in particular with Melaleuca alternifolia (tea tree) oil, are of interest, which, when used topically together with Alyxia reinwardtii extract, demonstrates increased antibacterial activity against methicillin-resistant strains of Staphylococcus aureus (MRSA). Combined inhibition of bacterial membranes and metabolic pathways is considered one of the key mechanisms of tissue-specific synergy. The additive effect was confirmed in microbiological tests based on minimum inhibitory concentration (MIC) and growth inhibition zone.

In the field of antioxidant protection, potentiation of the action of Alyxia reinwardtii is noted when combined with extracts of Camellia sinensis (green tea) and Ginkgo biloba, which have a high concentration of catechins and terpene lactones. Combined use increases the activity of SOD and GPx enzymes, and also reduces the level of malondialdehyde (MDA) in the tissues of the liver and skin. It is assumed that such synergy is realized due to the joint effect on the antioxidant response elements ARE/Nrf2.

In experiments modeling neurotransmitter activity, Alyxia reinwardtii extracts in combination with substances modulating serotonin and dopamine receptors (for example, with flavonoid fractions of Scutellaria baicalensis) showed enhanced analgesic and sedative effects. The mechanism of interaction involves GABA receptor activity and blockade of NMDA receptors in peripheral structures.

The protective and stabilizing effect of Alyxia reinwardtii in combination with prebiotic substances of plant origin (for example, inulin) was also established, which improves the microbiological profile of the intestine, promotes the growth of beneficial microflora and reduces systemic inflammation. Presumably, this synergy is based on an indirect modulating effect on the gut-immunity axis.

Thus, Alyxia reinwardtii has a pronounced potential for synergistic interaction with a number of natural substances. These interactions cover a wide range of functional areas: from regulating inflammation and microbial load to modulating antioxidant and neurotransmitter systems, which is confirmed by experimental data and pharmacochemical analyses.

Reference:
https://www.sciencedirect.com/...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8854579/
https://pubmed.ncbi.nlm.nih.gov/30305629/
https://link.springer.com/article/10.1007/s11101-020-09689-1
https://www.academia.edu/86897...

Geography of Use and Traditional Medicine — Alyxia reinwardtii

Alyxia reinwardtii is traditionally used in the folk medicine and ethnobotanical practices of Southeast Asia, mainly in Thailand, Vietnam, Laos and the western regions of Indonesia. In Thailand, the plant is part of medicinal preparations used in the northern provinces, where it is used under local names associated with tree bark and white resin. In folk practice, the leaves and bark of the plant are boiled or infused for external use, and are also used in the form of poultices and compresses. Local healers also use oil infusions prepared on the basis of coconut or sesame oil for rubbing and massage.

In the culture of the peoples of northern Thailand, Alyxia reinwardtii was traditionally used by elderly women in the form of an infusion of bark to cleanse the skin of the face and hands. In the mountain villages of the Lao tribes, the plant was considered a "plant of clarity", capable of "removing heavy breath", and was used in the form of inhaling smoke from burning bark in purification rituals after illness. Such practices are mentioned in regional Lanna medical scrolls, copied in monastic schools since the 17th century. Some herbalists mention that Alyxia reinwardtii was part of ritual smoking in ceremonies of exorcism of evil spirits, held in the traditions of animistic beliefs on the border of Laos and Vietnam.

On the island of Java, the plant was used in the form of a warm compress for body wraps, practiced as part of traditional Javanese women's care (jamu), especially after childbirth. The indigenous peoples of Kalimantan used bark decoctions as a basis for wiping during hot body conditions, accompanying this with ritual chants and applying protective signs to the skin. According to field records of Indonesian ethnographers of the 20th century, Alyxia reinwardtii was considered a talisman against spirits that cause dreams and skin irritations. In some settlements, the plant was hung in bundles over a child's cradle or hung over the entrance to the house.

In the folk medicine of Vietnamese and Khmer communities, the plant was also used as a powder for rubbing into the scalp and shoulders, which was associated with ideas about the violation of the "inner wind" and "diffuse heat". Compresses with Alyxia reinwardtii on the neck area were considered restorative measures after prolonged emotional stress. In some cases, the infusion was used as a ritual agent for fumigating a dwelling after funeral ceremonies, symbolizing purification and protection from the return of the deceased spirit.

The oral tradition of the mountain Karen and Shan peoples attributes to Alyxia reinwardtii the status of a "guardian of transitions" — its smoke was used to fumigate passages, bridges and thresholds before long journeys. This was practiced as part of an ancient ritual of leaving the village, and was accompanied by the recitation of formulas about protection and peace of mind. At present, some of these practices are preserved in reconstructed village ceremonies and local medical festivals.

Thus, the use of Alyxia reinwardtii covers a wide ethnomedical spectrum: from external care and ritual purification to elementary procedures in rural hygiene and healing. The plant was perceived as an intermediary between the physical and atmospheric state, combining physical impact and a symbolic protective function.