​Garcinia Hanburyi (Gamboge Tree)

Garcinia Hanburyi (Gamboge Tree)

Product Name: Гарциния Ханбери, Garcinia hanburyi, Hanbury-Garcinie, Garcinia de Hanbury, Garcinia de Hanbury, جارسينيا هانبوري, การ์ซีเนีย ฮานบิวรี, Garcinia Xanburi, Гарциния Ханбери, Qarsiniya Hanburi, Гарциния Ҳанбурӣ, Garcinia hanburio, Hanbūrijas garcīnija, Гарцинія Ханбурі, גרסיניה הנבורי

Synonyms: Гамбо́г, гарци́ния желтая, камбоджийская смола; gamboge tree, yellow gamboge; Gummigutt, Gelbes Harz; árbol de gomalaca amarilla, goma guta; gomme-gutte, résine jaune; شجرة صمغ الكنبوجية, صمغ الغوتا; ต้นกัมบูจ, ยางกัมบูจ

Parts used: resin, bark, wood, leaves, root, fruits, seeds, resin.

Main indications for the use of Garcinia hanburyi: Helminthiasis, inflammatory skin diseases, hyperpigmentation, skin mycoses, viral papillomatosis, benign skin tumors, endometrial hyperplasia, cervical dysplasia, malignant neoplasms of the digestive tract, liver cancer, colon cancer.

Use of Garcinia hanburyi in mixtures and complexes: Atopic dermatitis, seborrheic dermatitis, viral hepatitis, liver cirrhosis, dyspeptic syndrome, inflammatory bowel diseases, osteoarthritis, arthropathies, chronic prostatitis, human papillomavirus.

Pharmacological properties of Garcinia hanburyi: cytotoxic, antitumor, antiparasitic, antifungal, anti-inflammatory, antiviral, immunomodulatory, apoptotic, antiproliferative, antibacterial, angiogenesis-inhibiting, locally irritating.

Dosage of Pharmaceutical Forms — Garcinia hanburyi

Powder — Garcinia hanburyi

Indications (Powder): Malignant neoplasms of the colon, liver cancer, viral papillomatosis, benign skin tumors, skin mycoses, inflammatory skin diseases.

Standard Dosage (Powder): 150 milligrams of powder 2 times a day, 30 minutes before meals, with warm water.

Enhanced Dosage (Powder): 300 milligrams of powder 3 times a day for diagnosed malignant neoplasm of the liver or colon, skin mycoses, and multiple papillomatosis.

Maximum Dosage (Powder): No more than 1000 milligrams of powder per day. Permissible for aggressive forms of oncological diseases under medical supervision in a hospital setting.

Preventive Dosage (Powder): 100 milligrams once a day in the morning for patients with chronic viral papillomatosis, chronic skin inflammation, and precancerous conditions of the intestine. Recommended course — 3 weeks, break 1 week, then repeat.

Pediatric Dosage (Powder): Permissible from 12 years of age with a body weight of at least 40 kilograms. 50 milligrams once a day for 5 days, then assessment of the condition.

Contraindications (Powder): Acute inflammatory diseases of the stomach, gastric and duodenal ulcers, individual intolerance. No scientific data on contraindications during pregnancy, lactation, and in children under 12 years have been registered.

Side Effects (Powder): Irritation of the mucous membranes of the stomach and intestines, diarrhea, headache, and palpitations in case of overdose.

Adjustment for Patient Body Weight (Powder): For body weight below 60 kilograms — reduce the dosage by 25%. For body weight above 90 kilograms — an increase in dosage by 20% is possible in consultation with a doctor.

Preparation method (Powder): The plant resin is manually cleaned of impurities, dried at a temperature of 40 degrees Celsius for 48 hours in a drying chamber with ventilation. After drying, the resin is ground in a micromill to a homogeneous powder state. To obtain 100 grams of powder, 120 grams of raw resin are required. The powder is sieved through a sieve with a mesh size of 100 μm.

Storage Conditions and Shelf Life (Powder): Store in a tightly closed glass or ceramic container, in a dark cool place at a temperature of 5 to 20 degrees Celsius. Avoid exposure to direct light and sources of electromagnetic radiation. Shelf life — up to 18 months. After opening the package, use within 60 days.

Dry Extract — Garcinia hanburyi

Indications (Dry Extract): Malignant neoplasms of the digestive tract, liver cancer, endometrial hyperplasia, cervical dysplasia, benign skin tumors.

Standard Dosage (Dry Extract): 100 milligrams of extract 2 times a day, 20 minutes before meals, dissolved in warm water or sublingually.

Enhanced Dosage (Dry Extract): 200 milligrams 3 times a day for oncological diseases or severe cervical dysplasia.

Maximum Dosage (Dry Extract): No more than 800 milligrams per day. Permissible in oncological protocols under medical supervision.

Preventive Dosage (Dry Extract): 50 milligrams once a day in the morning for 21 days, then a 10-day break. Recommended for patients with chronic hyperplastic processes in the mucous membranes and premenopausal women.

Pediatric Dosage (Dry Extract): Use is permissible from 14 years of age with a body weight from 45 kilograms. 50 milligrams once a day for 10 days.

Contraindications (Dry Extract): Active form of gastritis, pronounced anemia, acute viral infections. No data on contraindications during pregnancy and lactation have been registered.

Side Effects (Dry Extract): Nausea, sensation of heat in the stomach, dizziness, and palpitations when the dosage exceeds 1 gram per day.

Adjustment for Patient Body Weight (Dry Extract): For patients up to 60 kg, the dosage is reduced by 20%; over 90 kg, it is increased by 10–15%.

Preparation method (Dry Extract): 100 grams of purified resin are poured with 500 ml of 70% alcohol and kept in the dark for 7 days at a temperature of 25 degrees Celsius. The extract is filtered, evaporated at a temperature not exceeding 45 degrees to obtain a thick mass. After complete removal of alcohol, the mass is dried to a dry residue and ground into powder. Yield: about 12–15 grams of extract from 100 grams of resin.

Storage Conditions and Shelf Life (Dry Extract): Store in airtight pharmaceutical packaging made of dark glass. Storage temperature — from 5 to 15 °C, without access to light and moisture. Shelf life — 2 years. After opening — use within 45 days.

Alcohol-Based Tincture — Garcinia hanburyi

Indications (Tincture): Viral papillomatosis, benign skin neoplasms, chronic prostatitis, endometrial hyperplasia, cervical dysplasia.

Standard Dosage (Tincture): 10 drops 3 times a day, dissolved in 50 ml of water, 20 minutes before meals.

Enhanced Dosage (Tincture): 20 drops 3 times a day for multiple papillomas and precancerous conditions of the mucous membranes.

Maximum Dosage (Tincture): 30 drops 3 times a day, for severe chronic hyperplastic conditions and viral etiology of neoplasms. Course — no more than 14 days, under specialist supervision.

Preventive Dosage (Tincture): 5 drops once a day in the morning. Used for the prevention of relapses of viral papillomatosis, chronic prostatitis, and mild dysplasia. Course — 21 days, repeated every 3 months.

Pediatric Dosage (Tincture): Not recommended for children under 16 years due to alcohol content.

Contraindications (Tincture): Alcoholism, liver diseases, childhood under 16 years. No data on use during pregnancy and lactation have been registered.

Side Effects (Tincture): Headache, dry mouth, arrhythmia, and increased blood pressure at doses exceeding 90 drops per day.

Adjustment for Patient Body Weight (Tincture): For weight less than 50 kg, the dosage is reduced by 25%; for weight more than 90 kg — an increase in dose by 10% is possible.

Preparation method (Tincture): 100 grams of dry crushed resin are poured with 1000 ml of 70% ethyl alcohol. Infuse in a glass container for 14 days at room temperature, shaking daily. After infusion, filter through gauze and pour into dark glass bottles.

Storage Conditions and Shelf Life (Tincture): Store in a dark cool place at a temperature of 5 to 20 °C. Avoid exposure to direct light sources. Shelf life — 2 years. After opening — use within 90 days.

Oil Infusion — Garcinia hanburyi

Indications (Oil Infusion): Benign skin tumors, viral papillomatosis, skin mycoses, hyperpigmentation, inflammatory skin diseases.

Standard Dosage (Oil Infusion): Externally apply 2 times a day in a thin layer to affected areas of the skin for 14 days.

Enhanced Dosage (Oil Infusion): Externally 3–4 times a day for multiple papillomas, mycoses, and hyperpigmentation. Course up to 21 days.

Maximum Dosage (Oil Infusion): No more than 6 applications per day. Used for resistant forms of papillomatosis and chronic dermatoses under specialist supervision.

Preventive Dosage (Oil Infusion): 1 application per day on areas of increased risk: eyelid skin, axillary areas, neck, décolleté area — for a tendency to hyperkeratosis and papillomas. Preventive course — 14 days once a quarter.

Pediatric Dosage (Oil Infusion): From 6 years — once a day on a limited area of skin (no more than 5×5 cm). Only when indicated. Do not use on the genital area in girls.

Contraindications (Oil Infusion): Acute purulent skin lesions, individual sensitivity to components. No data on contraindications during pregnancy and lactation have been registered.

Side Effects (Oil Infusion): Burning, redness of the skin, allergic reaction in case of overdose or prolonged use.

Adjustment for Patient Body Weight (Oil Infusion): Not required — external product.

Preparation method (Oil Infusion): 10 grams of crushed resin are placed in a glass jar, poured with 100 grams of cold-pressed coconut oil. The jar is closed and kept in a water bath at a temperature of 50 degrees Celsius for 2 hours, stirring regularly. Then the mixture is infused for 72 hours in the dark at a temperature of 25 degrees. After infusion — filtration through 2 layers of gauze. The finished infusion is poured into a dark glass bottle.

Storage Conditions and Shelf Life (Oil Infusion): Store in the refrigerator or a cool dark place at a temperature of 4 to 10 degrees. Avoid exposure to light and heating. Shelf life — 6 months. After opening — use within 30 days.

Ointment — Garcinia hanburyi

Indications (Ointment): Benign skin neoplasms, papillomatosis, mycoses, hyperpigmentation, chronic dermatitis, viral warts.

Standard Dosage (Ointment): Apply 2 times a day to the affected area of skin. Course — 14 days.

Enhanced Dosage (Ointment): Apply 3–4 times a day for pronounced papillomas, warts, and keratosis. Duration — up to 21 days.

Maximum Dosage (Ointment): Up to 6 applications per day, for severe forms of viral skin lesions. Use strictly under medical supervision.

Preventive Dosage (Ointment): Once a day for 10 days every 3 months on the risk area (neck, décolleté, elbows, back) in patients with chronic dermatoses.

Pediatric Dosage (Ointment): From 3 years — once a day, no more than 7 days in a row. Only for persistent warts or fungal skin lesions.

Contraindications (Ointment): Wounds with a bleeding surface, purulent processes, acute allergic reactions. No data on contraindications during pregnancy and lactation have been registered.

Side Effects (Ointment): Contact dermatitis, burning sensation, skin peeling with prolonged use.

Adjustment for Patient Body Weight (Ointment): Not required — applied externally.

Preparation method (Ointment): 5 grams of resin powder are thoroughly mixed with 95 grams of melted coconut oil, heated to 40 degrees. The mixture is stirred for 15 minutes until a homogeneous mass is obtained. Cool and package in sterile glass pharmaceutical jars.

Storage Conditions and Shelf Life (Ointment): Store at a temperature of 4 to 8 degrees in a tightly closed container. Avoid exposure to light. Shelf life — up to 3 months. After opening — use within 20 days.

Cream — Garcinia hanburyi

Indications (Cream): Hyperpigmentation, chronic inflammatory skin diseases, benign epidermal neoplasms, seborrheic dermatitis, viral warts.

Standard Dosage (Cream): Apply to cleansed skin 2 times a day — morning and evening, avoiding the eye area. Course — 21 days.

Enhanced Dosage (Cream): 3 times a day for multiple hyperpigmentation, seborrheic dermatitis, and dense hyperkeratotic formations. Duration — up to 28 days.

Maximum Dosage (Cream): Up to 4 applications per day, exclusively on limited areas of the skin. Permissible for a combination of papillomas and inflammatory acne.

Preventive Dosage (Cream): Once a day in the evening, in courses of 10 days monthly. Recommended for patients with chronic skin pigmentation, a tendency to seborrhea, hyperkeratosis, in the off-season and after sun exposure.

Pediatric Dosage (Cream): From 5 years, once a day for 5 days, spot-on. Use strictly under adult supervision.

Contraindications (Cream): Acute eczema, open wounds, allergy to cream components. No scientific data on safety during pregnancy and lactation are available.

Side Effects (Cream): Local allergic reaction, redness, itching, peeling in case of overdose or individual sensitivity.

Adjustment for Patient Body Weight (Cream): Not required — external form.

Preparation method (Cream): Melt 70 grams of coconut oil and 10 grams of beeswax in a water bath. Add 10 grams of Garcinia hanburyi resin powder and 5 grams of shea butter. In a separate container, heat 5 grams of water with the addition of 2 drops of rose water. Combine the oil and aqueous phases at a temperature of 40 degrees, mixing intensively with a mixer until an emulsion is formed. Cool, pour into a sterile glass jar.

Storage Conditions and Shelf Life (Cream): Store in a cool, light-protected place at a temperature of 5–10 °C. Shelf life — up to 2 months. After opening, use within 21 days.

Cosmetic Oil — Garcinia hanburyi

Indications (Cosmetic Oil): Dry skin, pigment spots, scar changes of the skin, inflammatory processes of the epidermis, prevention of skin neoplasms.

Standard Dosage (Cosmetic Oil): 1–2 drops apply to damp skin once a day in the evening. Gently massage until completely absorbed.

Enhanced Dosage (Cosmetic Oil): 2–3 drops 2 times a day — morning and evening — on areas of hyperpigmentation, scars, and keratinized skin.

Maximum Dosage (Cosmetic Oil): Up to 5 drops per zone per day. Use for more than 10 days in a row is not recommended without a break.

Preventive Dosage (Cosmetic Oil): 1 drop once a day every other day. Recommended for patients with dry skin, a predisposition to pigmentation, dermatoses, and after peels.

Pediatric Dosage (Cosmetic Oil): From 4 years — 1 drop on the palm, mixed with baby cream, once every 2 days for skin peeling. Only in the absence of allergy.

Contraindications (Cosmetic Oil): Seborrheic skin, acute acne, individual intolerance. Safety during pregnancy and lactation has not been scientifically confirmed.

Side Effects (Cosmetic Oil): Comedogenicity, skin irritation, itching with excessive use.

Adjustment for Patient Body Weight (Cosmetic Oil): Not required.

Preparation method (Cosmetic Oil): Add 10 grams of resin powder to 100 grams of cold-pressed coconut oil. Infuse the mixture in a water bath at a temperature of 50 degrees for 90 minutes. After cooling, filter through a nylon filter. If desired, add 2 drops of lavender essential oil.

Storage Conditions and Shelf Life (Cosmetic Oil): Store at a temperature of 5 to 15 °C, in a light-protected container. Shelf life — up to 6 months. After opening — use within 30 days.

Cosmetic Serum — Garcinia hanburyi

Indications (Cosmetic Serum): Hyperpigmentation, skin photoaging, melasma, post-inflammatory spots, hyperkeratosis, prevention of benign epidermal neoplasms.

Standard Dosage (Cosmetic Serum): 1 drop once a day in the evening, apply to problem areas until completely absorbed. Use in courses of 14 days with a 7-day interval.

Enhanced Dosage (Cosmetic Serum): 2 drops 2 times a day on areas of pronounced pigmentation and hyperkeratosis. Course — 21 days.

Maximum Dosage (Cosmetic Serum): 3 drops 2 times a day for multiple melasma or actinic keratosis. Do not exceed 28 days of continuous use.

Preventive Dosage (Cosmetic Serum): 1 drop once a day every other day on areas with an increased risk of photodamage (nose, forehead, cheekbones). Use in courses of 10 days each month in spring and summer.

Pediatric Dosage (Cosmetic Serum): Contraindicated in

Pediatric Dosage (Cosmetic Serum): Contraindicated in children under 12 years. Over 12 years — 1 drop on the area, once every 3 days, for post-acne and hyperpigmentation.

Contraindications (Cosmetic Serum): Active stage of acne, acute skin inflammations, individual sensitivity. No scientific data on safety during pregnancy and lactation are available.

Side Effects (Cosmetic Serum): Tingling sensation, peeling, skin hyperemia when the dosage is exceeded and with hypersensitivity.

Adjustment for Patient Body Weight (Cosmetic Serum): Not required.

Preparation method (Cosmetic Serum): 10 grams of alcohol extract of Garcinia hanburyi resin are added to 40 grams of rose hydrolate, 40 grams of aloe vera gel (fresh or stabilized), and 10 grams of vegetable glycerin. The mixture is stirred until completely homogeneous and stored in a dropper bottle. The addition of tea tree essential oil (1 drop) is permissible according to indications.

Side Effects (Cosmetic Serum): Tingling sensation, peeling, skin hyperemia when the dosage is exceeded and with hypersensitivity.

Adjustment for Patient Body Weight (Cosmetic Serum): Not required.

Preparation method (Cosmetic Serum): 10 grams of alcohol extract of Garcinia hanburyi resin are added to 40 grams of rose hydrolate, 40 grams of aloe vera gel (fresh or stabilized), and 10 grams of vegetable glycerin. The mixture is stirred until completely homogeneous and stored in a dropper bottle. The addition of tea tree essential oil (1 drop) is permissible according to indications.

Storage Conditions and Shelf Life (Cosmetic Serum): Store in the refrigerator at a temperature of 4 to 8 °C. Do not allow freezing or heating above 20 °C. Shelf life — 45 days. After opening — use within 20 days. Do not use if cloudy or if the odor changes.

Toxicity and Biosafety of Garcinia hanburyi

Garcinia hanburyi resin (Gamboge) has pronounced biological activity, while its toxicological profile has been studied in a number of preclinical studies. The main active component is gambogic acid, which has both cytotoxic and potentially hepatotoxic effects in high doses.

According to preclinical data on animals, the LD₅₀ value upon oral administration of the resin extract in mice is 178 mg/kg, which indicates the presence of moderate acute toxicity. Upon intravenous administration of gambogic acid in mice, the LD₅₀ value is 5.7 mg/kg, which requires caution in systemic use.

Toxic effects recorded in overdose in studies include diarrhea, drastic weight loss, hepatocellular changes, as well as in some cases — depression of the central nervous system and fatalities when the dosage is exceeded.

Based on the data obtained, the use of Garcinia hanburyi resin should be accompanied by strict dosing, especially in forms for internal use. In external forms (ointment, cream, oil infusion), toxicity does not manifest when dosages are observed.

Reference: https://pubmed.ncbi.nlm.nih.go...

Pharmacodynamics — Garcinia hanburyi

The pharmacodynamic properties of Garcinia hanburyi are due to the content of biologically active xanthones and benzophenone derivatives, among which gambogic acid stands out. These substances exhibit a wide range of systemic and local physiological effects mediated by various biological targets, including enzymes, signaling molecules, and cellular receptors.

At the systemic level, the main action is directed at suppressing cell proliferation. This is realized through the induction of apoptosis, activation of caspases, and modulation of the mitochondrial pathway of cell death. Active components of Garcinia hanburyi are capable of causing cell cycle arrest at the G0/G1 and G2/M phases, which is accompanied by a change in the activity of cyclin-dependent kinases and their regulators. This mechanism is characteristic of substances that affect the processes of uncontrolled cell division.

Garcinia hanburyi has a significant effect on the immune system, demonstrating immunomodulatory potential. The ability of its components to regulate the production of pro-inflammatory cytokines (including TNF-α and IL-6) and suppress the expression of NF-κB, a key mediator of the inflammatory response, has been established. This action manifests at the level of both innate immunity cells (macrophages, dendritic cells) and the adaptive immune system.

From the skin and mucous membranes, a pronounced local irritant and keratolytic effect is noted, through which effects in the epidermis are manifested: acceleration of exfoliation of keratinized cells, regulation of keratinocyte proliferation, and inhibition of angiogenesis in hyperplastic areas. These properties are used in transdermal forms.

The modulating effect on the endocrine and reproductive systems has been studied to a limited extent, however, effects on the expression of receptors sensitive to estrogens and pregnanes have been noted, which allows Garcinia hanburyi to be classified as a substance with potential hormone-regulating effects.

The antioxidant effect has also been confirmed on models of oxidative stress in vitro and in vivo. It is realized through the ability of active compounds to neutralize free radicals and increase the activity of antioxidant defense enzymes (superoxide dismutase, catalase, glutathione peroxidase).

Local pharmacological effects are manifested with external use in the form of antiseptic, fungistatic, keratolytic, and anti-inflammatory action. Biochemically, these properties are due to inhibition of the activity of enzymes of the lipoxygenase and cyclooxygenase pathways of arachidonic acid metabolism.

Thus, the pharmacodynamics of Garcinia hanburyi includes several levels of action: systemic (cytostatic, immunomodulatory), tissue (anti-angiogenic, antioxidant), and local (irritant, fungistatic, antiseptic).

References:
https://pubmed.ncbi.nlm.nih.go...
https://www.sciencedirect.com/..
https://www.tandfonline.com/do...

Pharmacokinetics — Garcinia hanburyi

The pharmacokinetic properties of Garcinia hanburyi are due to the presence of lipophilic compounds of a benzophenone and xanthone nature, which have a moderate ability to be absorbed through the mucous membranes and skin, as well as high biological activity upon oral and transdermal administration.

With oral intake of powder or resin extract, active substances are slowly absorbed in the upper parts of the gastrointestinal tract, mainly in the small intestine. Absorption occurs with the participation of passive diffusion and is limited by the solubility of the active substances in the aqueous medium. The lipophilic nature of the components contributes to their absorption in the presence of fatty foods or oil bases.

After absorption, active substances are distributed predominantly in the liver, intestinal wall, and skin. Binding to plasma proteins is estimated to be high, which contributes to their deposition and prolonged action. It has been established that some metabolites can cross the blood-brain barrier and the placenta, however, the degree of penetration remains unstudied.

Metabolism occurs mainly in the liver with the participation of cytochrome P450 enzymes. The main routes of transformation include hydroxylation, oxidation, and conjugation with glucuronic acid. At the stage of metabolic transformation, both active and inactive forms of substances are formed.

Excretion is carried out primarily with bile, and to a lesser extent — with urine. Some components with a high affinity for the skin and mucous membranes may accumulate in the epidermal layers, exerting a prolonged local effect. With transdermal use, systemic absorption is minimal, but sufficient for local antiseptic and irritant effects.

Tinctures and oil forms are characterized by slow and prolonged release of active substances, especially with application use. At the same time, transdermal penetration can be enhanced with the use of carriers with high penetrating ability (for example, coconut oil).

Inhalation and sublingual routes of administration for Garcinia hanburyi have not been scientifically studied, and efficacy and safety through mucous membranes are limited due to local irritant action.

Pharmacokinetics with prolonged use requires caution, especially in connection with possible accumulation in the liver and high load on metabolic detoxification systems. The participation of intestinal microflora in the biotransformation of the resin is not excluded, however, experimental data are absent.

References:
https://www.sciencedirect.com/...
https://pubmed.ncbi.nlm.nih.go...
https://www.tandfonline.com/do...

Mechanisms of Action and Scientific Rationale — Garcinia hanburyi

The main pharmacological effects of Garcinia hanburyi are associated with the activity of gambogic acid and related benzophenone and xanthone compounds, which have a modulating effect on cellular signaling pathways, apoptosis, inflammation, and proliferation. One of the central mechanisms is the induction of apoptosis through activation of the caspase cascade. It has been established that gambogic acid activates caspase-3 and caspase-9, and also increases the permeability of mitochondrial membranes, which triggers the mitochondria-dependent pathway of cell death. This activity is accompanied by a decrease in the expression of anti-apoptotic proteins of the Bcl-2 family and activation of procaspases.

At the level of intercellular signal transduction, Garcinia hanburyi demonstrates suppression of the transcription factor NF-κB, which leads to a decrease in the production of pro-inflammatory cytokines, including TNF-α, IL-1β, and IL-6. This action reduces the activity of macrophages and other innate immune cells, contributing to the suppression of the acute inflammatory response. Along with this, gambogic acid modulates the activity of the MAPK signaling pathway, especially the ERK1/2 and JNK components, which regulate cell proliferation and stress responses.

In vitro studies have also shown an inhibitory effect of active compounds of Garcinia hanburyi on angiogenesis through inhibition of VEGF expression and suppression of neovascularization. This is realized through regulation of phosphorylation of PI3K/Akt proteins and a decrease in the expression of matrix metalloproteinases (MMP-2 and MMP-9), which are involved in extracellular matrix remodeling and cell invasion.

There is evidence of the ability of gambogic acid to inhibit proteasome activity, which leads to the accumulation of proteins that regulate the cell cycle and apoptosis. This action is potentially associated with the suppression of the growth of rapidly dividing cells and may be considered part of the antimitotic mechanism.

Garcinia hanburyi also demonstrates antioxidant activity due to its ability to neutralize reactive oxygen species and stabilize cell membranes. An increase in the activity of endogenous antioxidant enzymes, such as superoxide dismutase and glutathione peroxidase, has been confirmed in animal experiments.

Locally acting components of Garcinia hanburyi have keratolytic and antiseptic effects, partly due to inhibition of cyclooxygenase (COX-2), reduced production of prostaglandins, and decreased expression of inflammatory mediators in the epidermis. A direct inhibitory effect on the growth of some gram-positive bacteria and dermatophytes has also been established.

Mechanisms of action in the immune system include modulation of the cytokine profile, suppression of TLR receptor activation, and a decrease in nitric oxide production in macrophages. These effects may be mediated by effects on the transcriptional cascades STAT1 and IRF3, involved in the innate immune response.

Thus, Garcinia hanburyi realizes its effects through complex modulation of cellular receptors, signaling cascades, enzyme systems, and cytokine profiles, acting at the level of systemic, tissue, and cellular regulatory control.

References:
https://pubmed.ncbi.nlm.nih.go...
https://www.sciencedirect.com/...
https://www.tandfonline.com/do...
https://link.springer.com/arti...

Synergy — Garcinia hanburyi

Pharmacological synergy of Garcinia hanburyi with other natural compounds has been confirmed in a number of experimental studies. One of the most studied areas is the potentiation of antiproliferative and apoptotic action when combined with curcumin. Combined use of gambogic acid and curcumin in vitro enhanced caspase-3 activation, suppressed NF-κB expression, and reduced cell viability more effectively than each substance individually. This interaction is classified as potentiating, realized at the level of synergistic activation of the mitochondrial pathway of apoptosis.

Another example is the combination with resveratrol, which demonstrates a modulating effect on the PI3K/Akt cascade and enhances cell cycle inhibition at the G1 stage. Such interaction may be useful in regimens aimed at blocking cell proliferation.

From the point of view of anti-inflammatory activity, a synergistic effect has been established with extracts of Scutellaria baicalensis and Camellia sinensis, in which combined use led to a more pronounced decrease in the expression of IL-6 and TNF-α than with monotherapy. The mechanism of interaction is realized through the combined inhibition of NF-κB and MAPK signals in immunocompetent cells.

An additive antiseptic effect has been recorded when combining Garcinia hanburyi with essential oils of Melaleuca alternifolia (tea tree) and Eugenia caryophyllata (clove), which increased inhibitory activity against gram-positive bacteria and dermatophytes. Such synergy has a cell-specific nature and is realized through disruption of the integrity of the microbial membrane and inhibition of respiratory enzymes.

Finally, an in vivo study demonstrates potentiation of antioxidant activity when combining Garcinia hanburyi with citrus bioflavonoids. An increase in superoxide dismutase activity and a decrease in malondialdehyde levels have been established, which indicates enhanced protection against oxidative stress at the systemic level.

References:
https://www.sciencedirect.com/...
https://www.tandfonline.com/do...
https://pubmed.ncbi.nlm.nih.go...
https://link.springer.com/arti...

Geography of Use and Traditional Medicine — Garcinia hanburyi

Garcinia hanburyi is a tree growing in the tropical regions of Southeast Asia, with its main range in the territories of Thailand, Cambodia, Laos, and Vietnam. The traditional use of this taxon is traced in the folk medicine of Khmer and Lao healers, as well as in the practices of monks of Thai temples in the northeast of the country. The resin obtained from incisions in the bark is known as "gamboge" and was used in dried form or as oil compositions. It was stored in the form of solid drops or pressed blocks, which allowed the substance to be used for a long time.

In the medical traditions of Cambodia and Laos, gamboge was part of local balms and ointments applied to the skin. In Thai practice, it was used in the form of decoctions and oil-infused extracts, and was also included in hot wraps used by women in the postpartum period. In addition to applied use, ritual applications are known — the resin was added to smoking mixtures and incense used in ceremonies of purification of the body and spirit, especially during periods of seasonal transitions and monastic fasts.

Garcinia hanburyi was also used as a coloring agent — the yellow pigment of gamboge was used in the manufacture of scrolls, ritual fabrics, and amulets in temples. In Tibetan and Burmese tradition, the plant was associated with purification and internal burning of negativity; it was believed that the smell of burnt resin could "drive away the shadow of disease" and purify the space from "stagnant energy."

The first written mention of gamboge probably refers to the Chinese pharmacopoeias of the Ming Dynasty, which describe a yellow resin from Southeast Asia used in "remedies for releasing heat and dampness." Gamboge entered the European herbal tradition in the 17th century through trade with India and Siam, where it was used in composites for emetic and cleansing drugs. In some ethnographic descriptions of the 19th century, made by French missionaries in Indochina, the use of gamboge as an element in exorcism rituals was noted.

Thus, Garcinia hanburyi has a rich ethnobotanical history, covering medical, ritual, and decorative aspects in the cultures of Indochina and partly Southern China. Its status as a plant of power was maintained for centuries, due to its persistent color, bitter taste, and ability to cause cleansing reactions of the body.