Sophora flavescens
What's the taxonomical classification of Sophora flavescens?
Sophora flavescens belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within this group, it is categorized under the class Equisetopsida and the subclass Magnoliidae. Following the taxonomic hierarchy further, it falls under the order Fabales and belongs to the family Fabaceae. Finally, the plant is identified by its genus, Sophora, and its specific species designation, flavescens.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Fabales |
| Family | Fabaceae |
| Genus | Sophora |
| Species | flavescens |
What are the morphological characteristics of this plant?
Sophora flavescens has pinnately compound leaves consisting of multiple pairs of oblong to lanceolate leaflets that are arranged oppositely along a central rachis. The plant typically exhibits a shrubby or small tree growth habit with woody stems that possess a somewhat rough texture. Its flowers are characteristic of the Fabaceae family, featuring zygomorphic petals that are often pale yellow or cream in color. These blossoms are borne in clusters and eventually give rise to elongated, dehiscent legume pods. The overall morphology is defined by its fine-textured foliage and the structural complexity of its reproductive organs.
What is the geographical distribution of this plant?
This plant is native to specific regions of East Asia, primarily found within the provinces of China and parts of Japan. It typically thrives in temperate climates where it inhabits various environments including mountain slopes and forest edges. The species is often documented growing in well-drained soils across these hilly or mountainous terrains. Its range is relatively localized compared to more cosmopolitan botanical species. Local ecological conditions in these specific Asian territories play a critical role in maintaining its natural populations.
How is this plant cultivated?
This plant, Sophora flavescens, is cultivated in well-drained, sandy loam soils under full sunlight within temperate to subtropical climates.
Growers typically propagate the species through seeds or stem cuttings to establish new crops. Regular irrigation is essential during the early growth stages, though the mature plant demonstrates significant drought tolerance once established. Nutrient management focuses on maintaining moderate nitrogen levels to balance foliage development with root growth.
Successful cultivation requires monitoring for specific soil pests to ensure the quality of the medicinal roots.
What parts of this plant are used medicinally?
This plant medicinal uses involve the radix, which is the dried root, the aerial part, the bark, and the leaf. The most common therapeutic application focuses on the root, also known as Ku Shen, due to its high concentration of alkaloids. Additionally, the aerial parts of the plant are harvested to provide essential medicinal compounds. Practitioners may also utilize the bark and the leaf in specific traditional formulations. These various components are processed to treat conditions such as skin inflammation and itching.
According to a study published by "Zhongguo Zhong xi yi jie he za zhi Zhongguo Zhongxiyi jiehe zazhi = Chinese journal of integrated traditional and Western medicine", the effective ingredient extracted from Radix Sophora flavescens is used to treat viral myocarditis. In a study involving 76 cases of virus myocarditis with continuous positive CBVRNA-PCR in blood compared to 50 cases treated by GIK, the clearance rate of RSF was dose-dependent. The effective rate of RSF on palpitations, chest distress, and dyspnea was 96.02%, while the rate for arrhythmia was 100%. After RSF therapy, parameters such as EF, SV, CO, and CI elevated significantly (P < 0.01), and LVM and LVMI decreased statistically significantly. Following 5 month therapy, the anti-Coxsackie group B virus neutralizing antibodies of the RSF group returned to normal titer and NK cell activity elevated (P < 0.01).
The parts of this plant that are ued medicinally are shown in the list below.
- Radix
- aerial part
- bark
- leaf
- root
What traditional systems uses this plant?
This plant, known as Ku Shen, has been utilized for centuries in Kampo and Mongolian herbal medicine to treat various inflammatory and dermatological conditions. In the Japanese Kampo tradition, it is frequently employed to alleviate skin itching, eczema, and damp-heat symptoms. Mongolian practitioners have historically relied on its root to manage gastrointestinal issues and infections within their traditional healing frameworks. The plant's bioactive alkaloids and flavonoids are credited with these diverse therapeutic actions across both medicinal systems. These long-standing practices underscore the plant's significant role in the history of East Asian pharmacology.
According to a study published by "Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica", the chemical constituents of the alkaloid fraction of Kushen decoction were investigated. Eight compounds were isolated and identified as matrine (I), sophoridine (II), sophocarpine (III), sophoramine (IV), oxymatrine (V), oxysophocarpine (VI), aloperine (VII) and sparteine (VIII). All 8 of these compounds were isolated from Kushen decoction for the first time. Aloperine was found firstly in Sophora flavescens.
The hystorical systems that uses this plant are shown in the list below.
- Kampo
- Mongolian herbal medicine
What are the pharmacological activities of Sophora flavescens?
This plant has anti-inflammatory, anti-oxidant, hepatoprotective, antibacterial, and antifungal pharmacological activities. Its various bioactive compounds work to neutralize harmful free radicals and reduce systemic inflammation within the body. These chemical constituents also provide significant protection for liver cells against chemical-induced damage. Additionally, the plant exhibits potent antimicrobial properties that allow it to inhibit the growth of various bacteria and fungi. Research continues to explore how these diverse mechanisms can be utilized for therapeutic purposes.
According to a study published by "Journal of ethnopharmacology", Sophora flavescens is used for treating skin disorders, diarrhea, vaginal itching, and inflammatory diseases, specifically eczema when its root is combined with other herbs. Network analysis identified 35 alkaloids from Sophora flavescens, including 10 dominating alkaloids such as matrine, oxymatrine, sophoridine, sophocarpine, oxysophocarpine, allomatrine, sophoramine, anagyrine, cytisine, and N-methylcytisine. These alkaloids provide 71 related targets for the treatment of eczema. Using a 2,4-dinichlorobenzene-induced eczema model, matrine administered at 50 mg/kg or 10 mg/kg for 22 days dose-dependently decreased serum levels of TNF-alpha and IL-4 and alleviated skin lesions. The effects of 50 mg/kg of matrine were almost identical to 200 mg/kg of dexamethasone. Additionally, matrine down-regulates TNF-alpha, STAT3, and TP53 at the transcriptional level in dorsal skin tissues.
The primary pharmacological activities of this plant are shown in the list below.
- anti-inflammatory
- anti-oxidant
- antibacterial
- hepatoprotective
- antifungal
What medicinal compounds this plant contains?
This plant contains the medicinal compounds matrine, oxymatrine, sophocarpine, kushenol A, and formonoetine. These bioactive alkaloids and flavonoids are responsible for much of the plant's pharmacological activity. Specifically, the quinolizidine alkaloids like matrine and oxymatrine are studied for their potential anti-inflammatory and antitumor properties. Kushenol A contributes unique chemical characteristics that distinguish this species from other legumes. Additionally, the isoflavone formonoetine provides further therapeutic benefits in various traditional medicinal applications.
According to a study published by "Scientific reports", Sophora flavescens Aiton is a Chinese medicinal plant used in traditional Chinese medicine to treat cancer. The plant contains the alkaloid matrine (MAT). This specific compound has good anticancer effects and can be explored as a new therapeutic agent in TNBC research. MAT can effectively inhibit the proliferation and invasion ability of MDA-MB-231 and MDA-MB-468 cells. The study also demonstrated that MAT inhibits the PI3K/AKT signaling pathway and downregulates the expressions of PI3K, AKT, p-AKT, and PGK1.
The primary medicinal compounds of this plant are shown in the list below.
- matrine
- oxymatrine
- sophocarpine
- kushenol A
- formononetin
What health conditions is this plant used for?
This plant is used for treating various skin diseases including skin inflammation, skin itch, eczema, and acne. Its bioactive compounds work to reduce redness and swelling caused by dermatological issues. Applying the plant helps soothe persistent itching associated with allergic reactions or sensitive skin. It also possesses antibacterial properties that effectively combat the bacteria responsible for acne outbreaks. This natural remedy serves as a versatile option for managing diverse inflammatory skin conditions.
According to a study published by "PloS one", Sophora flavescens is a Chinese medicinal herb used for the treatment of gastrointestinal hemorrhage, skin diseases, pyretic stranguria and viral hepatitis. In the study, Sophora extract was administered at doses of 0.158 g/kg or 0.63 g/kg to rats. These treatments, alongside 40 mg/kg of indinavir twice a day for 7 days, resulted in a 55%-83% decrease in AUC(0-∞) and a 38%-78% reduction in C(max). Additionally, the CL/F increased up to 7.4-fold in the treated rats. Oxymatrine was also administered at 45 mg/kg to evaluate its impact.
The main health conditions this plant is used for are shown in the list below.
- skin diseases
- inflammation
- skin inflammation
- skin disorders
- eczema
What are the herbal preparations of this plant?
This plant is Sophora flavescens, which is processed into various medicinal preparations including Radix Sophorae Flavescentis, Compound Kushen Injection, Sophora flavescens pieces, decoctions, and oral capsules. The dried root, known as Radix Sophorae Flavescentis, serves as the primary source for these different pharmaceutical forms. Practitioners often utilize Sophora flavescens pieces to create traditional decoctions through boiling. For more standardized dosing, the plant material is also manufactured into convenient oral capsules. These diverse preparations allow for different methods of administering the plant's bioactive compounds.
According to a study published by "Frontiers in pharmacology", Kushen (Radix Sophorae Flavescentis) is a component of the bis-herbal formulation Compound Kushen Injection (CKI) used as an adjuvant treatment for cancer. After consecutive immunization for 5 weeks, CKI did not elevate serum total IgE (tIgE) or mouse mast cell protease 1 (MMCP1). However, a single injection of CKI could induce Evans blue extravasation and cause obvious hypothermia. The alkaloids found in Kushen, specifically matrine, were identified as the active constituents responsible for these immediate hypersensitivity reactions. This study concludes that CKI acts as a PAF inducer by promoting PAF production through the de novo pathway.
The main herbal preparations of this plant are shown in the list below.
- Compound Kushen Injection
- Radix Sophorae Flavescentis
- Sophora flavescens pieces
- decoctions
- oral capsules
What side effects this plant can have?
This plant can cause acute toxicity, anemia, diarrhea, gastric ulcer, and hepatotoxicity in humans. The presence of certain alkaloids and quinolizidine compounds contributes to its potential for severe physiological harm. Excessive consumption may lead to significant liver damage and impaired blood cell production. Furthermore, the chemical constituents can irritate the digestive lining, resulting in painful ulcers or gastrointestinal distress. These systemic reactions highlight the substantial risks associated with unmonitored medicinal use.
According to a study published by "Phytomedicine : international journal of phytotherapy and phytopharmacology", an increasing number of reports indicate that the administration of Sophora flavescens has serious adverse effects. The main toxic effects associated with Sophora flavescens are neurotoxicity and acute toxicity, which have caused widespread concern worldwide. The alkaloids of Sophora flavescens are distributed in the heart, liver, stomach and large intestine. These components are excreted from the body through gluconeogenesis. Further investigation into the metabolic study of alkaloids and other components of Sophora flavescens in vivo is necessary to improve pharmacological effects and reduce toxicity.
The main side effects this plant can have are shown in the list below.
- acute toxicity
- anemia
- diarrhea
- gastric ulcer
- hepatotoxicity
What herbs are paired with Sophora flavescens?
This plant is frequently paired with Huang Lian, Ban Lan Gen, and Lian Qiao to enhance its ability to clear heat and resolve toxicity in traditional herbal formulas.
These combinations are often utilized to target inflammatory conditions and skin ailments by intensifying the cooling properties of the root. Practitioners may also incorporate it with Bo He to promote the dispersion of wind-heat through the body. Such synergistic pairings aim to balance the bitter and cold nature of the herb to prevent stomach upset.
Together, these specific herbal blends serve to support the immune system and alleviate internal heat buildup.