Polygalacic acid (Virgaureagenin G)(PA) significantly improves cholinergic system reactivity, as indicated by decreased acetylcholinesterase (AChE) activity, increases choline acetyltransferase (ChAT) activity, and elevates levels of acetylcholine (ACh) in the hippocampus and frontal cortex, PA also significantly ameliorates neuroinflammation and oxidative stress in mice; suggest that PA might exert a significant neuroprotective effect on cognitive impairment, driven in part by the modulation of cholinergic activity and neuroinflammation. Polygalacic acid shows significant postingestive effects on Spodoptera littoralis larvae.

Nodakenin ((+)-Marmesinin) is a compound with anti-allergic and anti-inflammatory activities.

Methyl tridecanoate is a natural product.

1. Linarin (Acacetin-7-O-rutinoside) (acacetin-7-O-β-d-rutinoside) shows selective dose dependent inhibitory effect on acetylcholinesterase. 2. Linarin alleviates GalN/LPS-induced liver injury by suppressing TNF-α-mediated apoptotic pathways. 3. Linarin prevents A beta-induced neurotoxicity through the activation of PI3K/Akt, which subsequently inhibits GSK-3b and up-regulates Bcl-2. 4. The piperine significantly enhanced the oral absorption of Linarin in rats by inhibiting P-glycoprotein mediated cellular efflux during the intestinal absorption and likely simultaneously by inhibiting the metabolism of Linarin.

Neoeriocitrin is a natural product isolated from Drynaria Rhizome, shows activity on proliferation and osteogenic differentiation in MC3T3-E1. Neoeriocitrin is a potent acetylcholinesterase (AChE) inhibitor.

sn-Glycero-3-phosphocholine (Choline glycerophosphate) is a natural choline compound found in the brain and in milk. It is also a parasympathomimetic acetylcholine precursor which may have a potential for the treatment of Alzheimer's disease and dementia. sn-Glycero-3-phosphocholine rapidly delivers choline to the brain across the blood–brain barrier and is a biosynthetic precursor of the acetylcholine neurotransmitter. It is a non-prescription drug in most countries due to its Generally Recognised As Safe (GRAS) status [1]. Studies have investigated its efficacy for cognitive disorders including stroke and Alzheimer's disease. An Italian multicentre clinical trial on 2, 044 patients suffering from recent stroke were supplied Glycerylphosphorylcholine in doses of 1, 000 mg/day for 28 days and 400 mg three times per day for the five ensuing months. The trial confirmed the therapeutic role of alpha-GPC on the cognitive recovery of patients based on four measurement scales, three of which reached statistical significance [2].

Vincosamide is an alkaloid from Psychotria leiocarpa extract, inhibits the acetylcholinesterase (AChE) activity with anti-inflammatory activity. Vincosamide can effect relaxation of the supercoiled pBR322 plasmid DNA in the presence of Cu2+.

Sophoflavescenol is a mixed inhibitor of PDE5 with a K(i) value of 0.005 microM. Sophoflavescenol has antioxidant, anti-inflammatory, and apoptotic effects , these effects might contribute to the antitumor activity without severe side effects. Sophoflaves

1. Picfeltarraenin IB and Picfeltarraenin IA displayes no cytotoxic activity in vitro human tumor cell line panel.

Galanthamine N-Oxide, an alkaloid extracted from Zephyranthes concolor bulbs, effectively inhibits acetylcholinesterase (AChE) from electric eel with an EC50 of 26.2 μM. It acts as a significant inhibitor of substrate accommodation within the active sites of Torpedo californica AChE (TcAChE), human AChE (hAChE), and human BChE (hBChE) enzymes.

Lycoramine is a natural product isolated from Lycoris radiate. Lycoramine is a potent acetylcholinesterase (AChE) inhibitor

Leptomerine (IC50 = 2.5 mM) shows potent anticholinesterasic activity.

Trimyristin (Tritetradecanoin) is primarily located in the membrane (predicted from logP) and adiposome. glyceryl trimyristate exists in all eukaryotes, ranging from yeast to humans. In humans, glyceryl trimyristate is involved in the metabolic disorder called de novo triacylglycerol biosynthesis glyceryl trimyristate pathway.

Isomerazin (Isomeranzin) has anti-inflammatory activity, it suppresses inflammation by inhibiting M1 macrophage polarization through the p65, NF-κB and ERK pathway.

O-Desmethyl Galanthamine (Sanguinine) is galanthamine-type alkaloid and it is an acetylcholinesterase (AChE) inhibitor, with an IC50 1.83 μM.

1. Epiberberine may be caused drug interactions based on CYP2D6 enzyme. 2. Epiberberine has anti-adipogenic effect is mediated by downregulation of the Raf/MEK1/ERK1/2 and AMPKα/Akt pathways during 3T3-L1 adipocyte differentiation. 3. Epiberberine, as the brightest FSA emitter among the alkaloids, can also serve as an efficient conformation probe for HTG DNA and discriminate the DNA G-quadruplex from the RNA counterpart.

Sinapine Thiocyanate, is a derivative of Sinapine (S486605), an alkaloidal amine found in black mustard seeds. It is the choline ester of Sinapic Acid (S486800). It is also a phenolic-chloine conjugates, acting as anti-oxidants and acetylcholinesterase inhibitors, that can be used for the treatment of Alzheimer's disease (AD).

Galanthamine hydrobromide (Galantamine hydrobromide), a long-acting and centrally active AChE inhibitor (IC50:410 nM), is an allosteric potentiator at neuronal nicotinic ACh receptors.

Epiberberine chloride (Epiberberine (chloride)) is an alkaloid isolated from Coptis chinensis, acts as a potent AChE and BChE inhibitor, and a non-competitive BACE1 inhibitor (IC50s: 1.07, 6.03 and 8.55 μM).

1. Corynoline ((+)-Corynoline) is an acetylcholinesterase inhibitor.

Timosaponin AIII (Timosaponin A3) induces autophagy in HeLa cells followed by apoptotic cell death (IC50: 10 μM). The Timosaponin AIII cellular response is mediated via inhibition of mTORC1 and induction of ER stress (IC50: 2.5 μM, BT474 cells; 6 μM, MDAMB231). The Timosaponin AIII pro-apoptotic response is selective for tumor cells over normal cells but autophagy is induced in both.

1. Acetylshikonin exhibits weak cytotoxicity against human umbilical vein endothelial cells (HUVECs) with IC5 of over 2 microM, exhibits the antiangiogenic and antitumorigenic effects by suppressing proliferation and angiogenic factors. 2. Acetylshikonin inhibits the generation of NADPH oxidase complex in the activation of respiratory burst of PMNs, but does not directly inhibit the activity of NADPH oxidase already generated. 3. Certain shikonin derivatives(such as Acetylshikonin) act as modulators of the Nur77-mediated apoptotic pathway and identify a new shikonin-based lead that targets Nur77 for apoptosis induction. 4. Acetylshikonin, shikonin, and alkannin have accelerative effect on the proliferation of granulation tissue in rats. 5. Acetylshikonin has inhibitory effect on the edematous response is due neither to the release of steroid hormones from the adrenal gland nor to the glucocorticoid activity, but probably partly to the suppression of mast cell degranulation and partly to protection of the vasculature from mediator challenge. 6. Acetylshikonin induces apoptosis of hepatitis B virus X protein-expressing human hepatocellular carcinoma cells via endoplasmic reticulum stress.

Dihydrowithaferin A is a withanolide isolated from Withania somnifera with activity against acetylcholinesterase (AChE). Dihydrowithaferin A in the diet may prevent or decrease the growth of tumors.

1. Sinapine, an alkaloid from seeds of the cruciferous species, can be used as an effective natural compound for chemo-resistance. 2. Sinapine has antioxidant and radio-protective activities.

(±)-Huperzine A is an active Lycopodium alkaloid extracted from traditional Chinese herbs. (±)-Huperzine A is a selective and reversible inhibitor of AChE and can be used in studies about the treatment of Alzheimer's disease.

Edrophonium chloride is an acetylcholinesterase (AChE) inhibitor that is known to prevent the breakdown of the neurotransmitter acetylcholine by binding specifically to its catalytic site.

Tacrine (CS 12602) is an indirect cholinergic agonist and centrally acting anticholinesterase. It is approved for the treatment of Alzheimer's disease.

(-)-Huperzine A (HupA) , an active Lycopodium alkaloid extracted from the traditional Chinese herb, is a potent, selective and reversible acetylcholinesterase (AChE) inhibitor and has been widely used in China for the treatment of Alzheimer's disease (AD).

1. Corydaline (Corydalin), an isoquinoline alkaloid, is one of the major active constituents in a new prokinetic botanical agent. 2. Corydaline promotes gastric emptying and small intestinal transit and facilitates gastric accommodation. 3. Corydaline exhibits the anti-acetylcholinesterase, antiallergic, and antinociceptive activities. 4. Corydaline has potent inhibition of CYP2C19 and CYP2C9.

N-Acetyl-L-aspartic acid is a derivative of aspartic acid, synthesized in neurons from the amino acid aspartic acid and acetyl coenzyme A. N-Acetyl-L-aspartic acid has antioxidant activity.

Manghaslin (Quercetin 3-O-rutinoside-(1->2)-O-rhamnoside) has considerable α-glucosidase inhibitory activity, illustrating the anti-diabetic potential of phenolic-rich litchi pulp extracts. Manghaslin also shows inhibitory activity against AChE

Epi-galantamine, a diastereomer of galantamine, is an alkaloid extracted from the bulbs and flowers of the Caucasian snowdrop (Galanthus woronowii). It acts as an AChE inhibitor, featuring an EC50 of 45.7 μM.

1. Swertianolin (Bellidifolin-8-O-Glucoside), mangiferin, rhodenthoside A-C, isoorientin, isovitexin, and amarogentin would serve as potential chemotaxonomic markers to differentiate Gentianaceae species. 2. Swertianolin and swertiamarin show significant hepatoprotective effect in the liver damage model induced by alpha-naphthylisot hiocyanate. 3. Swertianolin shows anti-acetylcholinesterase activity effects. 4. Swertianolin shows that it can scavenge superoxide and hydroxyl radicals with the studying method of the autoxidation of Pyrogallol and afenton.

Coumaran (2,3-Dihydrobenzofuran) is an acetylcholinesterase (AChE) inhibitor isolated from leaves of L. camara. Coumaran(2,3-Dihydrobenzofuran) can be used as a biopesticide. 2,3-dihydrobenzofuran is a member of the class of 1-benzofurans that is the 2,3-dihydroderivative of benzofuran. It has a role as a metabolite.

Tenuifolin has no inherent toxicity to either the transfected or wild type cells at the effective concentrations, it inhibits amyloid-β secretion in vitro.

Garcinol also inhibits histone acetyltransferases (HATs, IC50= 7 μM) and p300/CPB-associated factor (PCAF, IC50 = 5 μM). Garcinol has anti-inflammatory and anti-cancer activity. Garcinol, a polyisoprenylated benzophenone harvested from Garcinia indica, exerts anti-cholinesterase properties towards acetyl cholinesterase (AChE) and butyrylcholinesterase (BChE) with IC50s of 0.66 μM and 7.39 μM, respectively.

Scopoletin (Esculetin 6-methyl ether) is a plant growth factor derived from the root of Scopolia carniolica, inhibits of acetylcholinesterase (AChE).

Jatrorrhizine chloride (Neprotine chloride) is a potent and orally active uptake-2 transporter inhibitor. It exhibits a critical neuroprotective role in H2O2-induced apoptosis via inhibition of the MAPK pathway in HT22 hippocampal neurons.

Violanthin is a natural product isolated from the aerial parts of Piper bavinum and inhibits acetylcholinesterase (AChE) (IC50: 79.80 μM). It has potent antioxidant and antibacterial activities.

N-p-trans-Coumaroyltyramine is a natural product, is an acetylcholinesterase (AChE) inhibitor with an an IC50 of 122 μM. N-p-trans-Coumaroyltyramine exhibits anti-trypanosomal activity with an IC50 of 13.3 μM for T. brucei rhodesiense.

1. Huperzine-B is a efficient inhibitor of human brain AChE. 2. Huperzine-B can enhance ognitive and protect neuro, may be potentially new drug candidates for Alzheimer's disease therapy.

Physostigmine, a parasympathomimetic alkaloid, is a reversible cholinesterase inhibitor. It extracts from the Calabar bean.

Galanthamine (Galantamine) is an acetylcholinesterase (AChE)inhibitor(IC50 : 500 nM), can reduce brain damage induced by hypoxia-ischemia.

Ebeiedinone, a steroidal alkaloid derived from Fritillaria species, effectively inhibits the activity of human whole blood cholinesterase (ChE) at a concentration of 0.1 mM, resulting in a significant inhibitory effect of 69.0%.

Isoimperatorin is an anti-inflammatory agent, exhibits significant inhibitory effects on acetylcholinesterase (AChE).

Dehydronuciferine is isolated from the leaves of Nelumbo nucifera Gaertn. Dehydronuciferine shows inhibitory of acetylcholinesterase with the IC50 of 25 ug/mL.

1. Isoeugenol acetate (Acetylisoeugenol) shows good antifungal activities against R. solani and F. oxysporum. 2. Isoeugenol acetate is a mild sensitizer in vivo.

Fustin is the phytogenic flavanol component of the plant Rhus verniciflua Stokes. Fustin shows protective effects on 6-hydroxydopamine-induced neuronal cell death.

Jatrorrhizine (neprotin) is a protoberberine alkaloid isolated from Enantia chlorantha (Annonaceae) and other species. It was found to have antimicrobial and antifungal activity. It binds and noncompetitively inhibits monoamine oxidase (IC50 4 micromolar for MAO-A and 62 for MAO-B).

Pseudocoptisine chloride (Isocoptisine chloride) is isolated from Corydalis Tuber with anti-inflammatory and anti-amnestic properties. Pseudocoptisine chloride inhibits acetylcholinesterase (AChE) activity (IC50 = 12.8 μM).