Sinomenium acutum

Sinomenium acutum · Accepted scientific name

Scientific literature: Very Sparse (7 studies) · ★☆☆☆☆

Sinomenium acutum is a medicinal plant whose stem, root, and leaf components are utilized for various therapeutic preparations, most notably Caulis Sinomenii. The plant contains several significant bioactive chemicals, including sinomenine, 2,2'-disinomenine, 5'-O-acetyl uridine, and acutumidine. These compounds provide a wide range of pharmacological activities, such as antioxidant, analgesic, hepatoprotective, and ACE-inhibitor properties. Due to these effects, the plant is frequently studied for its ability to manage conditions like rheumatoid arthritis, rheumatic diseases, neuralgia, and experimental autoimmune encephalomyelitis. Consequently, sinomenine remains a primary focus of research for treating these complex inflammatory and neurological disorders.

Quick facts
Synonyms
Sinomenium Acutum Var. Tomentosum · Sinomenium Heterophyllum · 11 more
Common names
Not available
Family
Menispermaceae
Distribution
Not available
Plant Parts
Stem · Root

Classification

Common Names

Sinomenium acutum is a versatile plant recognized by a diverse array of names across different cultures and languages. In certain regions, it is affectionately known by the common name kilpiliaani, while in others, it is referred to as mesiačikovec rôznolistý. Its botanical identity is also represented in Japanese through the names オオツヅラフジ and ツヅラフジ. Furthermore, the plant is identified in Chinese contexts as 毛青藤, showcasing its global presence. These varied nomenclature styles highlight the widespread recognition and linguistic diversity associated with this single species.

Sources: Catalogue of Life (COL)

Synonyms

Sinomenium acutum is a botanical species that has been identified by several different scientific names throughout history. It is formally recognized as having the synonym Cocculus acutus, reflecting its complex taxonomic classification. The plant is also linked to Cocculus diversifolius var. cinereus and Cocculus heterophyllus in various botanical records. Furthermore, researchers have previously categorized it under the names Cocculus variiformis and Marsdenia acuta. Understanding these overlapping synonyms is essential for maintaining accuracy in botanical studies and plant identification.

Sources: The World Checklist of Vascular Plants (WCVP)

Taxonomy

Sinomenium acutum is a unique botanical specimen that belongs to the kingdom Plantae. Within this vast biological realm, the plant is classified under the class Equisetopsida. It specifically falls under the order Ranunculales, reflecting its evolutionary connections. The species is further categorized into the family Menispermaceae, showcasing its distinct morphological traits. Ultimately, this plant is identified by its specific genus, Sinomenium.

Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Ranunculales
Family Menispermaceae
Genus Sinomenium

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

Geographic Regions

Sinomenium acutum is a plant species primarily distributed throughout the temperate regions of Asia. Its natural range encompasses several vast areas within China, including the North-Central, South-Central, and Southeast provinces. Beyond the Chinese mainland, the species is also well-established across Eastern Asia. Specifically, it can be found growing natively in both Japan and Korea. This broad geographic spread highlights the plant's adaptability to various temperate environments across the continent.

Sources: The World Checklist of Vascular Plants (WCVP)

Identification

Morphology

Sinomenium acutum is characterized by its distinct growth form as a tree.

Sources: Global Inventory of Floras and Traits (GIFT)

Biological Activities

Sinomenium acutum is a medicinal plant recognized for its diverse range of therapeutic activities and significant pharmacological potential. Research indicates that it possesses potent antioxidant properties, largely driven by its bioactive alkaloid, sinomenine, which helps mitigate oxidative injury. The plant also demonstrates clear analgesic potential, showing biological activity in receptor binding assays related to pain mediation. Furthermore, its antiproliferative effects can synergistically enhance immunosuppressive drugs, making it a subject of interest in regulating cell cycle progression. Finally, Sinomenium acutum exhibits notable antitumor and hepatoprotective capabilities, offering protection against liver injury and acting as a multi-target substance against various tumor cells.

Compounds

Sinomenium acutum is a medicinal plant known to harbor a diverse array of bioactive chemical constituents. Among its most prominent components is the alkaloid sinomenine, which has been extensively studied for its anti-inflammatory and anti-angiogenic properties. Research also identifies several other specific alkaloids within the plant, including acutumidine, acutumine, and N-demethylsinomenine. Additionally, the plant is associated with the presence of 5'-O-acetyl uridine, often identified through studies of its endophytic fungi. Together, these various compounds contribute to the complex chemical profile that defines this important botanical species.

Conditions

Sinomenium acutum is a medicinal plant used to treat rheumatoid arthritis, a systemic autoimmune disorder, as well as various other rheumatic diseases. The bioactive alkaloid sinomenine extracted from this plant is also effective in the treatment of neuralgia. Research indicates that sinomenine provides neuroprotective benefits by treating experimental autoimmune encephalomyelitis, a model for multiple sclerosis. Through these various applications, the plant serves as a significant source of immunosuppressive and anti-inflammatory agents.

Preparations

Sinomenium acutum is prepared as sinomenine, a natural alkaloid widely utilized in medical treatments. This plant is also used to prepare sinomenine hydrochloride (SIN-HCl), which serves as a key component in therapeutic studies for conditions like sepsis and rheumatoid arthritis. Furthermore, the plant is processed into the medicinal herb known as Caulis Sinomenii, consisting of its dried stems. Sinomenium acutum is also used to produce various extracts that are tested for biological activities, such as potential analgesic effects.

Parts used

Sinomenium acutum is a significant medicinal plant that contains various bioactive compounds distributed throughout its different anatomical structures. Research has extensively focused on its stem, which serves as a primary source for isolating morphinane alkaloid dimers and other chemical markers used for quality control. Additionally, the plant's roots are known to be a major reservoir for sinomenine, particularly as researchers investigate how gender-based differences affect metabolite accumulation in this part. While the leaves are also a component of the plant, studies indicate that metabolic variations between genders are more pronounced in the roots than in the foliage. Together, these distinct parts—the stem, root, and leaf—contribute to the complex chemical profile that defines the plant's pharmacological potential.