Atractylodes macrocephala
What's the taxonomical classification of Atractylodes macrocephala?
Atractylodes macrocephala belongs to the kingdom Plantae and is classified within the phylum Streptophyta. As a member of the class Equisetopsida and the subclass Magnoliidae, this plant falls under the order Asterales. It is further categorized into the family Asteraceae, which places it among the sunflower and daisy relatives. Within this family, it is specifically identified by the genus Atractylodes and the species macrocephala.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Atractylodes |
| Species | macrocephala |
What are the morphological characteristics of this plant?
Atractylodes macrocephala has a perennial herbaceous habit characterized by a thick, fleshy, and branched rhizome that serves as a primary storage organ. The plant produces large, basal leaves that are typically ovate or lanceolate with serrated margins and a textured, rugose surface. Its flowering stems are erect and can reach significant heights, terminating in dense, terminal capitula composed of numerous small florets. These flower heads are surrounded by multiple layers of involucral bracts that exhibit a distinctive shape and arrangement. The resulting inflorescence presents a robust structure that is central to its taxonomic identification.
What is the geographical distribution of this plant?
This plant is native to the mountainous regions of southwestern China, specifically within the provinces of Yunnan, Sichuan, Guizhou, and Tibet. It typically thrives in high-altitude environments ranging from temperate forests to alpine meadows. These habitats are characterized by moist, well-drained soils and cool climates. The species is often found growing along rocky slopes or in shaded areas under forest canopies. Its distribution remains relatively localized due to these specific ecological requirements.
How is this plant cultivated?
This plant requires well-drained, fertile loamy soil and a cool, temperate climate to ensure the healthy development of its medicinal rhizomes.
Cultivation typically begins with planting tubers in the spring or autumn, ensuring they are buried at an appropriate depth to avoid frost damage. It thrives in locations with moderate sunlight and consistent moisture, though it is highly susceptible to waterlogging which can lead to root rot. Growers often implement organic fertilization methods to enhance the concentration of active chemical compounds within the roots.
Successful harvesting usually occurs after several years of growth when the underground parts reach maximum potency.
What parts of this plant are used medicinally?
Atractylodes macrocephala contains medicinal compounds primarily located in its dried rhizomes. These underground stems are harvested and processed to serve as a fundamental component in various traditional formulations. The rhizomes are valued for their ability to regulate digestive functions and strengthen the spleen. Chemical constituents within these parts, such as atractylodin, contribute to its therapeutic properties. Practitioners often utilize the dried root segments to treat issues related to dampness and water retention in the body.
What traditional systems uses this plant?
This plant, known as atractylodes macrocephalon or baizhu in Chinese medicine, has been utilized for centuries in East Asian traditional medicine to treat digestive disorders, bloating, and dampness in the body.
Practitioners historically prescribed its dried rhizome to strengthen the spleen and regulate water metabolism. It was frequently combined with other herbs in complex formulas to address fatigue and appetite loss. Beyond gastrointestinal issues, historical records indicate its use in managing edema and stabilizing the spirit.
These long-standing applications established the plant as a foundational component in many classical herbal prescriptions.
What are the pharmacological activities of Atractylodes macrocephala?
This plant has diverse pharmacological activities including anti-inflammatory, anti-tumor, anti-diabetic, gastroprotective, and immunomodulatory properties. Its anti-inflammatory actions help reduce swelling and pain by inhibiting specific chemical mediators in the body. Research also suggests that its anti-tumor effects can impede the growth and spread of various cancer cells. Furthermore, the plant exhibits anti-diabetic potential by regulating blood glucose levels and provides gastroprotective benefits by shielding the stomach lining from injury. Finally, its immunomodulatory capacity helps balance the body's immune response to maintain overall health.
According to a study published by "Carbohydrate polymers", a homogeneous polysaccharide (AMP) with a molecular weight (Mw) of 3.56 kDa was isolated from Atractylodes macrocephala. This AMP primarily consists of fructose (92.4 %) and glucose (7.6 %) linked through specific glycosidic bonds. In a DSS-induced mouse model, AMP demonstrated efficacy against ulcerative colitis by increasing body weight, lengthening colon length, and elevating goblet cell counts. The substance also reduced the disease activity index and histological damage while restoring intestinal barrier integrity. These ameliorative effects are mediated via the PI3K/Akt pathway and are entirely dependent on the homeostasis of the gut microbiota.
The primary pharmacological activities of this plant are shown in the list below.
- anti-inflammatory
- anti-tumor
- anti-diabetic
- gastroprotective
- immunomodulatory
What medicinal compounds this plant contains?
This plant contains a diverse array of bioactive sesquiterpene lactones including Atractylenolide I, Atractylenolide III, Atractylon, Atramacroloid D, and the group of compounds known as Atramacroquin A-M. These specific chemical constituents are primarily responsible for the plant's significant pharmacological properties. Research suggests that these compounds contribute to various therapeutic effects such as anti-inflammatory and anti-tumor activities. The presence of these lactones makes the species a valuable subject in the study of natural product chemistry. Understanding the structural variations among these molecules helps scientists better utilize the plant in medicinal applications.
According to a study published by "Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials", Atractylodes macrocephala contains Atractylenolide I (8,9-dehydroasterolide, B), 4,15-epoxy-8 beta-hydroxyasterolide (C) and atractylenolide III (8 beta-hydroasterolide, D). At concentrations of 28.0 and 56.0 mumol/L, B, C and D inhibited the spontaneous movement of rat isolated ileum with a contractile force decrease where P < 0.001, while the rest force was not affected at P > 0.05. These compounds B, C and D at 28.0 or 56.0 mumol/L significantly antagonized CaCl2-induced contraction of rat isolated ileum when used to pretreat against Ver 0.28 mumol/L. Co bathing of B, C or D at 56.0 mumol/L with Atr 0.19 mumol/L weakened the ileum response to Ach, and at 56.0 mumol/L they restrained ileum spasm mediated by Neo 2.15 mumol/L. Additionally, B, C or D in a dose of 28.0 mg/kg significantly inhibited the gastrointestinal prochoresis of mice in the modified Phenol Red Paste Model.
The primary medicinal compounds of this plant are shown in the list below.
- Atractylenolide I
- Atractylenolide III
- Atractylon
- Atramacronins A-P
- Atractylodemaynes A-G
What health conditions is this plant used for?
This plant is used for treating dyspepsia, gastritis, gastric disorders, stomach disorders, and splenic asthenia. Its medicinal properties are primarily utilized to regulate digestive functions and alleviate discomfort within the gastrointestinal tract. By addressing various stomach disorders, it helps restore balance to the body's metabolic processes. The plant also serves as a remedy for splenic asthenia, which involves weakness or dysfunction of the spleen. This traditional use aims to improve overall energy levels and digestive efficiency.
According to a study published by "Journal of separation science", Atractylodes macrocephala is used in traditional Chinese medicine for energy and stomach complaints. It is also utilized for the treatment of dyspepsia and anorexia, anti-inflammation, anticancer, and for increasing assimilation. Through a high-speed counter-current chromatography method, 32.1 mg of atractylenolidde III at 99.0% purity and 319.6 mg of atractylon at 97.8% purity can be obtained from a 1000 mg crude sample in a single run. The recoveries for these components are 95.4% for atractylenolidde III and 92.6% for atractylon.
The main health conditions this plant is used for are shown in the list below.
- dyspepsia
- gastric disorders
- gastritis
- stomach disorders
- splenopathy
What are the herbal preparations of this plant?
This plant can be prepared as a decoction by boiling the dried rhizomes in water to extract its medicinal properties. Practitioners often use a finely ground powder for easier consumption or mix it into granules for standardized dosing. A concentrated tincture can be made using alcohol to preserve the active compounds for long-term use. Additionally, the essential oil extracted from the plant offers a potent way to utilize its aromatic components. These various methods allow for diverse therapeutic applications in traditional medicine.
The main herbal preparations of this plant are shown in the list below.
- Decoction
- Powder
- Tincture
- Essential oil
- Granules
What side effects this plant can have?
This plant can cause nausea, digestive upset, dizziness, and various allergic reactions in sensitive individuals. Some users may experience significant gastrointestinal distress or stomach discomfort after consumption. Reports also suggest that certain people might encounter lightheadedness or a sense of dizziness. Additionally, skin irritation or other allergic reactions can occur if the plant comes into direct contact with the body. Monitoring how your body responds to this botanical substance is essential to avoid these adverse effects.
The main side effects this plant can have are shown in the list below.
- Nausea
- Digestive upset
- Dizziness
- Allergic reactions
What herbs are paired with Atractylodes macrocephala?
This plant Atractylodes macrocephala is frequently paired with herbs such as Poria cocos, Dioscorea yamamotoii, and Pinellia ternata to enhance its ability to dry dampness and strengthen the spleen.
These combinations are designed to harmonize the digestive system and resolve fluid retention within the body. When used with Poria cocos, the mixture works synergistically to promote urination and reduce swelling. Pairing it with Dioscorea yamamotoii helps to further fortify the middle jiao while maintaining a balance of qi.
Practitioners select these specific herbal allies to tailor the formula's potency according to the patient's specific pattern of dampness.