Picralima nitida
What's the taxonomical classification of Picralima nitida?
Picralima nitida belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within this lineage, it is categorized under the class Equisetopsida and the subclass Magnoliidae. Following its taxonomic progression, it falls under the order Gentianales and is a member of the family Apocynaceae. Finally, the plant is identified by its specific genus, Picralima, and its unique species designation, nitida.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Gentianales |
| Family | Apocynaceae |
| Genus | Picralima |
| Species | nitida |
What are the morphological characteristics of this plant?
Picralima nitida has woody stems and leaves characterized by an entire margin, a distinct petiole, and a somewhat coriaceous texture. The foliage typically exhibits an oblong to elliptic shape with pinnate venation that is clearly visible on the underside. Small, inconspicuous flowers are produced in clusters, often emerging from the axils of the leaves. The plant develops small, fleshy fruits that serve as a primary reproductive structure. These morphological traits are characteristic of its classification within the family Euphorbiaceae.
What is the geographical distribution of this plant?
This plant is native to the tropical rainforest regions of West and Central Africa, specifically ranging through countries such as Nigeria, Cameroon, Gabon, and the Democratic Republic of the Congo. It thrives within the humid, low-altitude equatorial zones where dense canopy cover provides consistent moisture. The species is typically found in primary forest habitats rather than open savannahs or disturbed agricultural lands. Its distribution is closely tied to the specific soil compositions and rainfall patterns characteristic of the Guineo-Congolian forest block. Consequently, its presence is restricted to these specific latitudinal bands near the equator.
How is this plant cultivated?
This plant Picralima nitida is cultivated by growing it in well-drained, nutrient-rich tropical soils under high humidity and filtered sunlight conditions.
Growers must maintain consistent moisture levels to prevent root rot while ensuring the substrate does not become waterlogged. Because it thrives in warm climates, protecting the foliage from frost is essential for its survival. Regular application of organic fertilizers supports the development of its robust structure.
Monitoring for specific tropical pests is also a necessary part of a successful maintenance routine.
What parts of this plant are used medicinally?
This plant Picralima nitida provides medicinal benefits through its bark, fruit, leaf, root, and seed. The bark is often processed to create decoctions used for treating various systemic ailments. Extracts from the leaves are frequently applied or consumed to manage inflammatory conditions. The root is harvested for its potent chemical properties which assist in traditional healing practices. Additionally, both the fruit and the seeds are utilized in specific herbal preparations to address diverse health concerns.
According to a study published by "Journal of analytical & pharmaceuticaal research", Picralima nitida is used to treat human diseases such as muscle and joints pains, hyperthermia, hypertension, hepatitis, jaundice and rheumatism. The medicinal parts utilized include the fresh or dry barks of the tree and the fresh fruits. Various ethnopharmacolological preparations like decoctions, maceration, infusion and powder are widely commercialized. This plant was represented by 0.6 % of total trees recorded in 0.5 ha, implying 0.70 tree and 1 tree/ha.
The parts of this plant that are ued medicinally are shown in the list below.
- bark
- fruit
- leaf
- root
- seed
What traditional systems uses this plant?
This plant Picralima nitida is utilized within Traditional African Medicine to treat various ailments including skin infections, stomach pains, and inflammatory conditions. Local healers often prepare decoctions or infusions from the bark and roots to alleviate digestive distress. The medicinal extracts are also applied topically to wounds or skin irritations to promote healing. These historical practices rely on the plant's bioactive properties to manage common health issues in rural communities. Such traditional knowledge remains a vital part of the ethnobotanical heritage in regions where the species grows.
According to a study published by "BMC complementary and alternative medicine", Picralima nitida is used in African folklore for the treatment of various cancers. The ethanol extracts of this plant were investigated against human epithelial MCF-7 breast cancer cells in a dose-dependent manner ranging from 1 to 50 μg/ml. While other extracts induced cell death at a concentration of 10 μg/ml, the ZI extract was the exception by increasing β1-integrin expression and strengthening the cortical actin cytoskeleton. Despite these different signaling mechanisms, all four plant extracts mediated strong anti-cancer properties with IC50 values between 23-38 μg/ml.
The hystorical systems that uses this plant are shown in the list below.
- Traditional African Medicine
What are the pharmacological activities of Picralima nitida?
This plant has antibacterial, antimalarial, antioxidant, anti-inflammatory, and anti-cancer pharmacological activities derived from its diverse bioactive secondary metabolites. Various studies have demonstrated its capacity to inhibit the growth of harmful bacteria and combat malaria parasites. The presence of specific phytochemicals also allows it to neutralize free radicals and reduce systemic inflammation. Additionally, the plant exhibits significant potential in inhibiting the proliferation of cancer cells. These combined medicinal properties make Picralima nitiida a valuable subject for future drug development.
According to a study published by "Evidence-based complementary and alternative medicine : eCAM", Picralima nitida methanol extracts showed antibacterial activity against all twenty-nine studied bacteria, including MDR phenotypes. The minimal inhibitory concentrations for Picralima nitida were found to vary from 128 to 1024 μg/mL. At concentrations of MIC/2 and MIC/5, the extracts of P. nitida improved the antibacterial activities of some commonly used antibiotics. This suggests that P. nitida may have synergistic effects with the tested antibiotics. These results suggest that extracts from P. nitida could be used alone or in association with common antibiotics to fight bacterial infections involving MDR strains.
The primary pharmacological activities of this plant are shown in the list below.
- analgesic
- anti-cancer
- anti-inflammatory
- anti-malarial
- antimicrobial
What medicinal compounds this plant contains?
This plant contains the medicinal alkaloids akuammicine, akuammidine, akuammigine, akuammine, and pseudoakuammigine. These specific chemical compounds are classified as indole alkaloids found within the botanical structure of Picralima nitiida. Researchers study these substances to understand their potential pharmacological properties and therapeutic applications. The presence of such diverse alkaloids suggests that the plant may possess significant bioactive qualities. Understanding the exact concentration of these molecules is essential for future drug development.
According to a study published by "European journal of pharmacology", five alkaloids extracted from the seeds of Picralima nitida include akuammidine, akuammine, akuammicine, akuammigine and pseudoakuammigine. Akuammidine showed a preference for mu-opioid binding sites with Ki values of 0.6, 2.4 and 8.6 microM at mu-, delta- and kappa-opioid binding sites, respectively. Akuammine showed the highest affinity for mu-opioid binding sites with a Ki of 0.5 microM but acted as an antagonist with a pK(B) of 5.7. Akuammicine demonstrated the highest affinity for kappa-opioid binding sites with a Ki of 0.2 microM. Akuammigine and pseudoakuammigine showed little or no efficacy in opioid bioassays, and none of the alkaloids had significant activity for ORL1-binding sites with Ki values >> 10 microM.
The primary medicinal compounds of this plant are shown in the list below.
- akuammicine
- akuammidine
- akuammigine
- pseudoakuammigine
- alkaloidal fraction
What health conditions is this plant used for?
This plant is used for treating malaria, dysentery, fever, gastrointestinal disorders, and various bacterial infections. Traditional practitioners often utilize its leaves or bark to manage high body temperatures and reduce fever. Its medicinal properties are frequently applied to combat symptoms of dysentery and other painful gastrointestinal disorders. Furthermore, the plant contains compounds believed to help the body fight off specific bacterial infections. This versatility makes it a significant resource in folk medicine for addressing several systemic and digestive ailments.
According to a study published by "Asian Pacific journal of tropical medicine", Picralima nitida is used in African folk medicine for fever, hypertension, jaundice, dysmenorrhea, gastrointestinal disorders, and malaria. Pharmacological studies on the extracts or isolated compounds from this species have revealed analgesic, anti-inflammatory, hypoglycaemic, hypotensive, antiplasmodial, antimicrobial, antiulcer, and antitumorigenic activities. These findings demonstrate the potential of the plant for the treatment and prevention of various kinds of human diseases. Further studies are required to completely assess the phytochemical, pharmacological, and toxicological profile of this species.
The main health conditions this plant is used for are shown in the list below.
- malaria
- dysentery
- fever
- gastrointestinual disorders
- shigellosis
What are the herbal preparations of this plant?
This plant is used to create medicinal preparations such as decoctions, infusions, macerations, aqueous extracts, and powders to harness its bioactive properties. Practitioners often boil the bark or leaves to produce decoctions for more robust therapeutic effects. Infusions and macerations involve soaking the plant material in liquid to gently draw out specific chemical constituents. Aqueous extracts are frequently prepared through controlled water-based processes to isolate soluble compounds. Finally, the dried plant material can be ground into a fine powder for direct consumption or topical application.
According to a study published by "Journal of analytical & pharmaceuticaal research", Picralima nitida is used to treat human diseases such as muscle and joints pains, hyperthermia, hypertension, hepatitis, jaundice and rheumatism. Medicinal preparations for this plant include decoctions, maceration, infusion and powder. The fresh or dry barks of the tree and the fresh fruits are widely commercialized. In an ecological study of 0.5 ha, Picralima nitida was represented by 0.6 % of total trees recorded, which implies 0.70 tree and 1 tree/ha. This tree was poorly represented and was not a dominant species in its habitats.
The main herbal preparations of this plant are shown in the list below.
- decoctions
- infusion
- maceration
- aqueous extract
- powder
What side effects this plant can have?
This plant can cause serious adverse health effects including elevation in alanine aminotransferase, hepatitis, hypertension, hyperthermia, and increased blood glucose concentration. The rise in alanine aminotransferase levels serves as a critical marker for potential liver damage or dysfunction. This injury can progress into clinical hepatitis, which involves inflammation of the liver tissue. Furthermore, consumption is associated with hypertension and a dangerous rise in body temperature known as hyperthermia. Finally, users may experience metabolic disruptions characterized by an increased blood glucose concentration.
According to a study published by "African health sciences", the lime extracts of powdered seeds of Picralima nitida were tested in mice at concentrations of 200mg/kg, 400mg/kg, and 800mg/kg body weight. While the extracts did not induce significant change on haematological parameters (P>0.05), a significant elevation in the values of the ALT and AST (P<0.05) was observed. Additionally, an elevation of creatinine (P<0.05) occurred at the 800mg/kg concentration. The results indicated that the liver cells were impacted by the extracts in the bioassay conducted with mice.
The main side effects this plant can have are shown in the list below.
- elevation in alanine aminotransferase
- hepatitis
- hypertension
- hyperthermia
- increased blood glucose concentration
What herbs are paired with Picralima nitida?
This plant Picralima nitida is most effectively paired with ginger, turmeric, and black pepper to enhance its bioactive properties.
These specific combinations are used in traditional herbal preparations to increase the bioavailability of its essential compounds. Adding pungent rhizomes helps to balance the bitter profile of the plant while stimulating digestive processes. Some practitioners also combine it with citrus peel to refine the flavor and improve the absorption of its alkaloids.
This synergy between the species is believed to maximize the overall therapeutic potential of the mixture.