Scutellaria baicalensis
What's the taxonomical classification of Scutellaria baicalensis?
Scutelariia baicalensis belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within the class Equisetopsida, it is situated in the subclass Magnoliidae and falls under the order Lamiales. As a member of the family Lamiaceae, this plant is further categorized into the genus Scutellaria, ultimately reaching its specific designation as the species baicalensis.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Lamiales |
| Family | Lamiaceae |
| Genus | Scutellaria |
| Species | baicalensis |
What are the morphological characteristics of this plant?
Scutellaria baicaleis has a perennial growth habit characterized by upright, woody stems that reach heights of approximately 20 to 40 centimeters. The leaves are primarily opposite, featuring an oblong to lanceolate shape with entire or slightly serrated margins. Its flowers are bilabiate and typically display a blue or violet coloration, emerging from calyxes that are deeply divided. The plant develops small, inconspicuous fruits that contain numerous tiny seeds. These morphological features allow the species to thrive within its specific rocky, alpine habitats.
What is the geographical distribution of this plant?
This plant is native to the Baikal region of Siberia in Russia and parts of neighboring Mongolia. It primarily thrives in the rocky, mountainous terrain surrounding Lake Baikal where specific soil compositions are present. These populations are often found in alpine or subalpine zones characterized by cool temperatures and distinct seasonal changes. The species occupies specialized ecological niches that limit its spread to these specific high-latitude territories. Consequently, its range remains relatively restricted compared to more widespread members of the genus.
How is this plant cultivated?
This plant requires well-draining, sandy loam soil and full sunlight to thrive in a temperate climate with distinct seasonal changes.
It performs best when watered regularly during the growing season but must be allowed to dry out completely between applications to prevent root rot. Once established, the species is relatively hardy and can tolerate mild frost, making it suitable for perennial garden borders. Maintaining consistent moisture during periods of high heat is essential for preventing leaf scorch.
Careful attention to soil pH and drainage ensures the development of the medicinal roots used in pharmacological applications.
What parts of this plant are used medicinally?
This plant Scutellaria baicalensis is used medicinally primarily through its dried rhizomes and roots, which contain high concentrations of bioactive flavones. While the roots are the most common source for traditional extracts, the rhizomes are also frequently harvested for their pharmacological properties. Beyond the underground structures, various studies have explored the potential therapeutic benefits found in the leaves and flowers. Some medicinal applications also involve utilizing the aerial parts of the plant to obtain specific chemical compounds. Each of these distinct components contributes unique phytochemical profiles to its holistic use in herbal medicine.
According to a study published by "Planta medica", the organic solvent extracts of the roots of Scutelariia baicaleins Georgi contain four chemical constituents capable of binding to the BZD-S of the GABAA receptor. These constituents include wogonin with a Ki of 2.03 +/- 0.24 microM, baicalin with a Ki of 77.10 +/- 4.79 microM, baicalein with a Ki of 5.69 +/- 0.95 microM, and scutellarein with a Ki of 12.00 +/- 1.27 microM. All 4 of these compounds contain the flavonoid phenylbenzopyrone nucleus. Based on BZD-S binding, the order of affinity among these 4 compounds is wogonin > baicalein > scutellarein > baicalin.
The parts of this plant that are ued medicinally are shown in the list below.
- roots
- rhizome
- leaf
- flower
- aerial part
What traditional systems uses this plant?
This plant, Scutellaria baicalensis, has been utilized for centuries in traditional Oriental medicine and the Japanese Kampo system to treat inflammation, fever, and various infections. Practitioners historically employed its roots to clear heat and drain fire from the body to address ailments such as respiratory issues and skin conditions. In the context of Kampo, specific formulas containing the plant are prescribed to balance internal heat and regulate the body's vital functions. Its long-standing presence in these medicinal traditions is primarily attributed to its cooling properties and ability to stabilize systemic imbalances. Through these diverse historical applications, the plant has maintained a significant role in managing many acute and chronic inflammatory states.
According to a study published by "Planta medica", Scutelariia baicalensis is a component of the Japanese-Chinese traditional herbal medicinal mixture Oren-gedoku-to (OGT). This mixture was investigated in cultured human hepatocyte HepG2 cells at concentrations of 0.5 and 4.2 mg/ml. The component Scutelariia baicalensis was found to remarkably inhibit ACAT activity in a dose-dependent manner. Within this component, the flavonoid baicalein decreased ACAT activity starting from the level of 10(-6)M. These findings suggest that such components contribute to the reduction of cholesteryl ester formation.
The hystorical systems that uses this plant are shown in the list below.
- Kampo
- Oriental medicine
What are the pharmacological activities of Scutellaria baicalensis?
This plant has anti-inflammatory, antioxidant, antiviral, anti-cancer, and hepatoprotective pharmacological activities driven primarily by its bioactive flavonoids like baicalin and wogonin. These compounds work by neutralizing free radicals to prevent oxidative stress and modulating immune responses to reduce systemic inflammation. In oncology research, the plant's extracts demonstrate the ability to inhibit tumor cell proliferation and induce apoptosis in various cancer types. Furthermore, its antiviral properties help interfere with the replication cycles of several pathogens, including influenza and certain herpes viruses. Finally, the plant offers significant hepatoprotective benefits by shielding liver cells from toxin-induced damage and promoting cellular recovery.
According to a study published by "BMC complementary and alternative medicine", Scutelariia baicalensis Georgi is a medicinal herb used for thousands of years in countries like Korea, China and Japan. This plant has been reported to possess various medicinal properties including anti-microbial, anti-inflamatory and anti-cancer effects. Research involving 150 μg of proteins from L6 cells identified twenty six differentially expressed protein spots with a fold change of ≥ 2 and p < 0.05. Through MALDI-TOF/MS, 12 differentially expressed proteins involved in inflammatory responses were successfully identified. The flavonoids from Scutelariia baicalensis G. inhibited the expression of COX-2, iNOS and Annexin A2 proteins in LPS-stimulated L6 skeletal muscle cells. These findings demonstrate that the flavonoids from the plant directly protect the LPS stimulated inflammation process in L6 cells.
The primary pharmacological activities of this plant are shown in the list below.
- anti-inflammatory
- antioxidant
- antiviral
- anti-cancer
- hepatoprotective
What medicinal compounds this plant contains?
This plant contains the medicinal flavones baiicalin, baicalein, wogonin, scutellarein, and oroxylin A. These bioactive compounds are primarily concentrated in the roots of the species and are studied for their diverse pharmacological properties. Researchers have identified that these substances possess significant anti-inflammatory, antioxidant, and neuroprotective effects. Specifically, the interaction between these molecules can influence various cellular signaling pathways in the body. Such chemical complexity makes the plant a valuable subject for developing new therapeutic treatments.
According to a study published by "Biological & pharmaceuctical bulletin", Scutellariae Radix contains major ingredients such as baicalin and baicalein. When administered as a 2% extract in the diet, Scutelariae Radix decreased the number of ACF to 78% of that of the control. The active substance baicalein was found to inhibit cyclooxygenase 1 activity. These findings help explain the chemopreventive effects of the plant in suppressing experimental colon carcinogenesis.
The primary medicinal compounds of this plant are shown in the list below.
- Baicalin
- Baicalein
- Wogonin
- Scutellarein
- Oroxylin A
What health conditions is this plant used for?
This plant is used for treating Alzheimer's disease, Parkinson's disease, inflammatory bowel disease, type 2 diabetes, and liver injury. Its bioactive compounds, particularly baicalin, provide neuroprotective effects that may slow the progression of neurodegenerative disorders. Researchers also study its ability to modulate immune responses to manage chronic intestinal inflammation. Furthermore, the plant helps regulate blood glucose levels and protects hepatic cells from oxidative stress. These diverse medicinal properties make it a significant subject in pharmacological studies.
According to a study published by "Journal of ethnopharmacology", Scutelariia baicalensis is one of seven traditional medicinal plants investigated for its neuroprotective potential regarding Alzheimer's disease. The study examined the plant's ability to scavenge 4 different free radicals, which include DPPH, ABTS, O2, and NO. Researchers also evaluated the plant's capacity to inhibit enzymes related to neurodegeneration, specifically cholinesterases and glycogen synthase kinase-3β. The research involved testing cell viability through MTT assay in 2 different brain cell lines, namely non-tumorigenic D3 human brain endothelial cells and NSC-34 motor neurons. Additionally, the study used GC to screen for 21 pesticides residues.
The main health conditions this plant is used for are shown in the list below.
- Alzheimer's disease
- Parkinson's disease
- Inflammatory bowel disease
- Type 2 diabetes
- Liver injury
What are the herbal preparations of this plant?
This plant is the source of several traditional Chinese and Japanese medicinal preparations including Huang-Qin, Oren-gedoku-to, Saiboku-To, Gegegen Qinlian dispensing granule, and Shuang-Huang-Lian. These formulations primarily utilize the dried roots of Scutelariia baiicalensis to harness its bioactive flavonoids. Practitioners often prescribe these specific preparations to address inflammatory conditions, fevers, and various infectious processes. While Huang-Qin serves as a foundational herb, complex mixtures like Oren-gedoku-to and Shuang-Huang-Lian combine it with other botanicals to target specific heat-related pathologies. Modern pharmaceutical developments have also led to the creation of standardized formats such as the Gegegen Qinlian dispensing granule for easier administration.
According to a study published by "Science advances", Scutelariia baicalensis Georgi contains bioactive 4'-deoxyflavones such as wogonin and baicalein within the popular Chinese herbal remedy Huang-Qin. These root-specific flavones, which lack a 4'-hydroxyl group on the B ring, induce apoptosis in human tumor cells in vitro and inhibit tumor growth in vivo in different mouse tumor models. The biosynthesis of these compounds involves two genes encoding flavone synthase II, where FN SII-1 has broad specificity and FN SII-2 is specific for pinocembrin. FN SII-2 is responsible for producing 4'-deoxyRSFs including chrysin, wogonin, wogooside, baicalein, and baicalin. The synthesis process also requires a highly expressed gene encoding a cinnamic acid-specific coenzyme A ligase, SbCLL-7, and a specific isoform of chalcone synthase, SbCHS-2, which is highly expressed in roots to produce chrysin.
The main herbal preparations of this plant are shown in the list below.
- Huang-Qin
- Oren-gedoku-to
- Saiboku-To
- Gegen Qinlian dispensing granule
- Shuang-Huang-Lian
What side effects this plant can have?
This plant can cause severe physiological harm including autoimmune-like hepatitis, cardiac toxicity, hepatotoxicity, high liver enzyme levels, and mitochondrial cytotoxicity. These adverse effects primarily target the liver, where the induction of high liver enzyme levels serves as a clinical indicator of organ damage. The potential for autoimmune-like hepatitis suggests that the plant may trigger an immune response against liver cells. Furthermore, the occurrence of mitochondrial cytotoxicity implies that the plant disrupts the energy production processes within cellular structures. These combined complications, alongside the risk of cardiac toxicity, highlight the significant dangers associated with its consumption.
According to a study published by "Liver international : official journal of the International Association for the Study of the Liver", Scutelariia baicalensis (Sb) herbal extracts administered at 1 mg/kg via intraperitoneal injection for 4 or 8 weeks in C57BL/6J mice caused several health effects. Treatment with Sb increased serum AST, ALT, IgG, and ANA levels. Livers of Sb-treated mice demonstrated prominent necroinflammaotory changes. Additionally, Sb treatment resulted in a decrease in IFN-γ and an elevation of IL10 and TGF-β1 levels in liver tissues. The PBMC gene expression profile also suggested that Sb treatment could modulate immune responses.
The main side effects this plant can have are shown in the list below.
- autoimmune-like hepatitis
- cardiac toxicity
- hepatotoxicity
- high liver enzyme levels
- mitochondrial cytotoxicity
What herbs are paired with Scutellaria baicalensis?
This plant is frequently paired with herbs such as Ginseng, Rehmannia, and Licorice root to enhance its anti-inflammatory and antioxidant properties in traditional formulas.
When combined with Ginseng, the pairing aims to balance the plant's cooling nature with restorative energy to support the immune system. Pairing it with Rehmannia root often focuses on nourishing the blood and yin while addressing internal heat. Licorice root is commonly added to these mixtures to harmonize the various herbal components and improve overall efficacy.
These specific combinations are carefully selected to treat diverse systemic imbalances in traditional medicine.