Polygala tenuifolia Willd.

Tenuigenin is a major active component isolated from the root of the Chinese herb Polygala tenuifolia. Tenuigenin protects against S.aureus-induced pneumonia by inhibiting NF-κB activation. Tenuigenin has anti-inflammatory effect.

Onjisaponin B is an orally active natural product derived from Polygala tenuifolia. Onjisaponin B inhibits NF-κB p65. Onjisaponin B enhances autophagy and accelerates the degradation of mutant α-synuclein and huntingtin. Onjisaponin B reduces β-amyloid (Aβ) production. Onjisaponin B reduces radiation-induced cell apoptosis. Onjisaponin B has anti-oxidant and anti-inflammatory activities. Onjisaponin B can be used for neurological disease and radiation injury study, and its metabolite tenuifolin (TF) can enter the brain through the BBB.

3,4,5-Trimethoxycinnamic acid is a phenylpropanoid isolated from the roots of Polygala tenuifolia WILLD, with anti-stress effect, prolonging the sleeping time in animals. 3,4,5-Trimethoxycinnamic acid increases expression of GAD65 and γ-subunit of GABAA receptor, but shows no effect on the amounts of α-, β-subunits.

Tenuifolin is effective and has a protective action. Tenuifolin inhibits β-secretase decreases Aβ protein secretion, suppresses Aβ25-35 secretion, and subsequently caspase-3 and caspase-9 become active. Tenuifolin's ability to lower AChE activity, increase at the same time, increase the ability of the upper glands, and improve the ability to read and remember. Research on tenuifolin's potential for use in urinary disease (AD).

Gentisin is a natural compound. Gentisin can be extracted from Gentianae radix (Gentianaceae). Gentisin has mutagenic activity. Gentisin can be used in vascular smooth muscle research.

Polygala tenuifolia polysaccharide is a polysaccharide derived from Polygala tenuifolia.

[8]-Dehydrogingerdione is a Hydroxyphenylalkanone. [8]-Dehydrogingerdione can be isolated from the seeds of Aframomum melegueta and the rhizomes of Curcuma xanthorrhia. [8]-Dehydrogingerdione acts as an inhibitor of α-glucosidase and Tyrosinase, with an IC₅₀ value of 19.5 μM against α-glucosidase and an approximate IC₅₀ value of 100 μM against tyrosinase. [8]-Dehydrogingerdione can be used in diabetes-related research.

Polygalatenoside A is a noradrenaline reuptake inhibitor with an IC₅₀ of 30.0 μM against human noradrenaline transporter. Polygalatenoside A can be used in the research of mental disorders.

Polygalaxanthone III is a representative xanthone component of Polygala tenuifolia. Polygalaxanthone III inhibits chlorzoxazone 6-hydroxylation catalyzed by CYP2E1, with an IC₅₀ of 50.56 μM. Polygalaxanthone III repairs skin damage induced by M. furfur via activating STAT3 phosphorylation and exerts anti-inflammatory effects. Polygalaxanthone III can be used for research on M. furfur-related skin damage.

Sibiricose A5 is an oligosaccharide ester isolated from Polygalae Radix with potent antioxidant activity.

Polygalic acid is a polyphenolic acid with neuroprotective effects, and also an inhibitor of African swine fever virus polymerase (AsfvPolX), with an IC₅₀ value of 5.05 μM. Polygalic acid alleviates neuroinflammation by regulating cholinergic activity, and its fecal level decreases in diseased mice. Polygalic acid can be used in research related to painful diabetic peripheral neuropathy complicated with cognitive impairment and African swine fever.

Tenuifoliside A is isolated from Polygala tenuifolia, has anti-apoptotic and antidepressant-like effects. Tenuifoliside A exhibits its neneurotrophic effects and promotes cell proliferation through the ERK/CREB/BDNF signal pathway in C6 cells.

Glomeratose A is a lactate dehydrogenase inhibitor, isolated from Polygala tenuifolia.

Polygalacic acid, is a triterpene, isolated from the root of Polygala tenuifolia Willd. Polygalacic acid inhibits MMP expression. Polygalacic acid may have a therapeutic effect in Osteoarthritis (OA) treatment . Polygalacic acid exerts a significant neuroprotective effect on cognitive impairment, PA improves cholinergic system reactivity by inhibiting acetylcholinesterase (AChE) activity, increasing choline acetyltransferase (ChAT) activity, and elevating levels of acetylcholine (Ach) in the hippocampus and frontal cortex.

Tenuifoliside B, a component isolated from Polygalae Radix, inhibits potassium cyanide (KCN)-induced hypoxia and scopolamine-induced memory impairment. Tenuifoliside B shows potential cognitive improvement and cerebral protective effects. Tenuifoliside B has potential to become an anti-AD lead compound.

Polygalasaponin XXXI (Onjisaponin F) is an effective adjuvant for intranasal administration of influenza Influenza hemagglutinin (HA) vaccine to protect influenza virus infection.

(E)-3',6-Disinapoylsucrose is an orally active, blood-brain barrier permeable neuroprotective agent that inhibits Aβ protein aggregation. (E)-3',6-Disinapoylsucrose exerts anxiolytic, anti-inflammatory and cognitive-enhancing effects. (E)-3',6-Disinapoylsucrose regulates the TrkB/BDNF signaling pathway, inhibits the expression of NF-κB p65, reduces pro-inflammatory cytokine levels, and alleviates neuronal damage. (E)-3',6-Disinapoylsucrose also enhances the functions of central 5-HT and noradrenergic systems, thereby improving spatial learning and memory abilities and reducing anxiety-like behaviors. (E)-3',6-Disinapoylsucrose can be used for the research of related diseases such as Alzheimer's disease, depression, memory impairment and anxiety disorder.

Sibiricaxanthone B is a xanthone isolated from Polygala tenuifolia.

Onjisaponin Z is a natural product isolated from Radix Polygalae.

Tenuifoliside C, isolated from polygala tenuifolia willd, significantly inhibits chlorzoxazone 6-hydroxylation catalyzed by CYP2E1.