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| Carvacrol monoterpenoid phenol with odor of oregano. Found in essential oils and plants, has antimicorbial and antioxidant properties. Carvacrol is present abundantly in the essential oils of many medicinal plants and well known for its numerous biological activities. Carvacrol — Carvacrol is a small lipophilic monoterpenoid phenol that occurs naturally in oregano, thyme, and related essential oils. It is best classified as a natural product phytochemical and food-flavoring constituent rather than an approved anticancer drug. Standard abbreviations include CAR and CARV. In translational oncology, carvacrol is mainly a preclinical multitarget stress-response modulator with recurring signals around mitochondrial apoptosis, PI3K/Akt suppression, TRPM7-linked Ca²⁺ handling, and anti-migratory/anti-inflammatory effects. Primary mechanisms (ranked):
Bioavailability / PK relevance: Carvacrol is orally absorbable but has clear translational PK constraints: it is volatile, highly lipophilic, rapidly metabolized, and cleared mainly as glucuronide and sulfate conjugates. Reported plasma half-life in animal PK work is short, around 1.5 hours, which supports frequent dosing or formulation strategies if systemic antitumor exposure is desired. In-vitro vs systemic exposure relevance: Many mechanistic cancer studies use micromolar concentrations that may exceed sustained free systemic exposure achievable with simple oral dosing. Accordingly, positive cell-culture findings should be treated as exposure-sensitive unless supported by in-vivo efficacy or delivery enhancement. The mechanism is concentration-driven, not field-based. Clinical evidence status: Preclinical anticancer evidence with some in-vivo support, but no established oncology RCTs or approved cancer use. Human evidence is limited mainly to early safety/tolerability rather than efficacy, so current oncology relevance is investigational and adjunct-conceptual rather than clinically validated. Mechanistic pathway table
P: 0–30 min Carvacrol in Alzheimer’s diseaseCarvacrol in Alzheimer’s disease — Carvacrol is a small lipophilic monoterpenoid phenol found in oregano and thyme oils. In the AD context it is best classified as a preclinical neuroprotective natural product rather than a validated anti-dementia drug. The main recurring signals are anti-neuroinflammatory activity, oxidative-stress attenuation, partial cholinesterase inhibition, and protection against amyloid-β-associated synaptic and cognitive impairment. It is brain-active, but current AD evidence remains largely limited to cell and rodent models, with no established clinical efficacy. Primary mechanisms (ranked):
Bioavailability / PK relevance: Carvacrol is lipophilic and appears capable of CNS activity, but it is also rapidly metabolized and conjugated, which likely limits sustained free brain exposure with simple oral dosing. This makes formulation and exposure profile important for translation. In-vitro vs systemic exposure relevance: Several mechanistic studies use exposure conditions that may not map cleanly onto sustained human brain concentrations. The AD signal is still concentration-dependent and preclinical, so mechanistic plausibility is stronger than translational certainty. Clinical evidence status: Preclinical only for AD. There are rodent and cell-model signals for cognitive and biochemical benefit, but no established AD randomized clinical trials demonstrating efficacy. AD mechanistic pathway table
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| Reactive oxygen species (ROS) are highly reactive molecules that contain oxygen and can lead to oxidative stress in cells. They play a dual role in cancer biology, acting as both promoters and suppressors of cancer. ROS can cause oxidative damage to DNA, leading to mutations that may contribute to cancer initiation and progression. So normally you want to inhibit ROS to prevent cell mutations. However excessive ROS can induce apoptosis (programmed cell death) in cancer cells, potentially limiting tumor growth. Chemotherapy typically raises ROS. -mitochondria is the main source of reactive oxygen species (ROS) (and the ETC is heavily related) "Reactive oxygen species (ROS) are two electron reduction products of oxygen, including superoxide anion, hydrogen peroxide, hydroxyl radical, lipid peroxides, protein peroxides and peroxides formed in nucleic acids 1. They are maintained in a dynamic balance by a series of reduction-oxidation (redox) reactions in biological systems and act as signaling molecules to drive cellular regulatory pathways." "During different stages of cancer formation, abnormal ROS levels play paradoxical roles in cell growth and death 8. A physiological concentration of ROS that maintained in equilibrium is necessary for normal cell survival. Ectopic ROS accumulation promotes cell proliferation and consequently induces malignant transformation of normal cells by initiating pathological conversion of physiological signaling networks. Excessive ROS levels lead to cell death by damaging cellular components, including proteins, lipid bilayers, and chromosomes. Therefore, both scavenging abnormally elevated ROS to prevent early neoplasia and facilitating ROS production to specifically kill cancer cells are promising anticancer therapeutic strategies, in spite of their contradictoriness and complexity." "ROS are the collection of derivatives of molecular oxygen that occur in biology, which can be categorized into two types, free radicals and non-radical species. The non-radical species are hydrogen peroxide (H 2O 2 ), organic hydroperoxides (ROOH), singlet molecular oxygen ( 1 O 2 ), electronically excited carbonyl, ozone (O3 ), hypochlorous acid (HOCl, and hypobromous acid HOBr). Free radical species are super-oxide anion radical (O 2•−), hydroxyl radical (•OH), peroxyl radical (ROO•) and alkoxyl radical (RO•) [130]. Any imbalance of ROS can lead to adverse effects. H2 O 2 and O 2 •− are the main redox signalling agents. The cellular concentration of H2 O 2 is about 10−8 M, which is almost a thousand times more than that of O2 •−". "Radicals are molecules with an odd number of electrons in the outer shell [393,394]. A pair of radicals can be formed by breaking a chemical bond or electron transfer between two molecules." Recent investigations have documented that polyphenols with good antioxidant activity may exhibit pro-oxidant activity in the presence of copper ions, which can induce apoptosis in various cancer cell lines but not in normal cells. "We have shown that such cell growth inhibition by polyphenols in cancer cells is reversed by copper-specific sequestering agent neocuproine to a significant extent whereas iron and zinc chelators are relatively ineffective, thus confirming the role of endogenous copper in the cytotoxic action of polyphenols against cancer cells. Therefore, this mechanism of mobilization of endogenous copper." > Ions could be one of the important mechanisms for the cytotoxic action of plant polyphenols against cancer cells and is possibly a common mechanism for all plant polyphenols. In fact, similar results obtained with four different polyphenolic compounds in this study, namely apigenin, luteolin, EGCG, and resveratrol, strengthen this idea. Interestingly, the normal breast epithelial MCF10A cells have earlier been shown to possess no detectable copper as opposed to breast cancer cells [24], which may explain their resistance to polyphenols apigenin- and luteolin-induced growth inhibition as observed here (Fig. 1). We have earlier proposed [25] that this preferential cytotoxicity of plant polyphenols toward cancer cells is explained by the observation made several years earlier, which showed that copper levels in cancer cells are significantly elevated in various malignancies. Thus, because of higher intracellular copper levels in cancer cells, it may be predicted that the cytotoxic concentrations of polyphenols required would be lower in these cells as compared to normal cells." Majority of ROS are produced as a by-product of oxidative phosphorylation, high levels of ROS are detected in almost all cancers. -It is well established that during ER stress, cytosolic calcium released from the ER is taken up by the mitochondrion to stimulate ROS overgeneration and the release of cytochrome c, both of which lead to apoptosis. Note: Products that may raise ROS can be found using this database, by: Filtering on the target of ROS, and selecting the Effect Direction of ↑ Targets to raise ROS (to kill cancer cells): • NADPH oxidases (NOX): NOX enzymes are involved in the production of ROS. -Targeting NOX enzymes can increase ROS levels and induce cancer cell death. -eNOX2 inhibition leads to a high NADH/NAD⁺ ratio which can lead to increased ROS • Mitochondrial complex I: Inhibiting can increase ROS production • P53: Activating p53 can increase ROS levels(by inducing the expression of pro-oxidant genes) • Nrf2 inhibition: regulates the expression of antioxidant genes. Inhibiting Nrf2 can increase ROS levels • Glutathione (GSH): an antioxidant. Depleting GSH can increase ROS levels • Catalase: Catalase converts H2O2 into H2O+O. Inhibiting catalase can increase ROS levels • SOD1: converts superoxide into hydrogen peroxide. Inhibiting SOD1 can increase ROS levels • PI3K/AKT pathway: regulates cell survival and metabolism. Inhibiting can increase ROS levels • HIF-1α inhibition: regulates genes involved in metabolism and angiogenesis. Inhibiting HIF-1α can increase ROS • Glycolysis: Inhibiting glycolysis can increase ROS levels • Fatty acid oxidation: Cancer cells often rely on fatty acid oxidation for energy production. -Inhibiting fatty acid oxidation can increase ROS levels • ER stress: Endoplasmic reticulum (ER) stress can increase ROS levels • Autophagy: process by which cells recycle damaged organelles and proteins. -Inhibiting autophagy can increase ROS levels and induce cancer cell death. • KEAP1/Nrf2 pathway: regulates the expression of antioxidant genes. -Inhibiting KEAP1 or activating Nrf2 can increase ROS levels and induce cancer cell death. • DJ-1: regulates the expression of antioxidant genes. Inhibiting DJ-1 can increase ROS levels • PARK2: regulates the expression of antioxidant genes. Inhibiting PARK2 can increase ROS levels • SIRT1 inhibition:regulates the expression of antioxidant genes. Inhibiting SIRT1 can increase ROS levels • AMPK activation: regulates energy metabolism and can increase ROS levels when activated. • mTOR inhibition: regulates cell growth and metabolism. Inhibiting mTOR can increase ROS levels • HSP90 inhibition: regulates protein folding and can increase ROS levels when inhibited. • Proteasome: degrades damaged proteins. Inhibiting the proteasome can increase ROS levels • Lipid peroxidation: a process by which lipids are oxidized, leading to the production of ROS. -Increasing lipid peroxidation can increase ROS levels • Ferroptosis: form of cell death that is regulated by iron and lipid peroxidation. -Increasing ferroptosis can increase ROS levels • Mitochondrial permeability transition pore (mPTP): regulates mitochondrial permeability. -Opening the mPTP can increase ROS levels • BCL-2 family proteins: regulate apoptosis and can increase ROS levels when inhibited. • Caspase-independent cell death: a form of cell death that is regulated by ROS. -Increasing caspase-independent cell death can increase ROS levels • DNA damage response: regulates the repair of DNA damage. Increasing DNA damage can increase ROS • Epigenetic regulation: process by which gene expression is regulated. -Increasing epigenetic regulation can increase ROS levels -PKM2, but not PKM1, can be inhibited by direct oxidation of cysteine 358 as an adaptive response to increased intracellular reactive oxygen species (ROS) ProOxidant Strategy:(inhibit the Mevalonate Pathway (likely will also inhibit GPx) -HydroxyCitrate (HCA) found as supplement online and typically used in a dose of about 1.5g/day or more -Atorvastatin typically 40-80mg/day, -Dipyridamole typically 200mg 2x/day Combined effect research -Lycopene typically 100mg/day range (note debatable as it mainly lowers NRF2) Dual Role of Reactive Oxygen Species and their Application in Cancer Therapy ROS-Inducing Interventions in Cancer — Canonical + Mechanistic Reference -generated from AI and Cancer database ROS rating: +++ strong | ++ moderate | + weak | ± mixed | 0 none NRF2: ↓ suppressed | ↑ activated | ± mixed | 0 none Conditions: [D] dose [Fe] metal [M] metabolic [O₂] oxygen [L] light [F] formulation [T] tumor-type [C] combination
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| 5896- | CAR, | TV, | Carvacrol and Thymol Hybrids: Potential Anticancer and Antibacterial Therapeutics |
| - | Review, | Var, | NA |
| 5901- | CAR, | Neuroprotective role of carvacrol in ischemic brain injury: a systematic review of preclinical evidence and proposed TRPM7 involvement |
| - | Review, | Stroke, | NA |
| 5902- | CAR, | A novel antagonist of TRPM2 and TRPV4 channels: Carvacrol |
| - | in-vitro, | Nor, | HEK293 |
| 5903- | CAR, | TV, | Combined Cytotoxic Effects of Carvacrol-Based Essential Oil Formulations |
| - | in-vitro, | BC, | MDA-MB-231 |
| 5910- | CAR, | Oregano Phytocomplex Induces Programmed Cell Death in Melanoma Lines via Mitochondria and DNA Damage |
| - | in-vitro, | Melanoma, | B16-F10 | - | NA, | NA, | A375 |
| 5925- | CAR, | Neuroprotective effects of carvacrol against Alzheimer’s disease and other neurodegenerative diseases: A review |
| - | Review, | AD, | NA | - | Review, | Park, | NA | - | Review, | Stroke, | NA |
| 5927- | CAR, | Neuroprotective Potential and Underlying Pharmacological Mechanism of Carvacrol for Alzheimer’s and Parkinson’s Diseases |
| - | Review, | AD, | NA | - | Review, | Park, | NA |
| 5894- | CAR, | Targeting Gastrointestinal Cancers with Carvacrol: Mechanistic Insights and Therapeutic Potential |
| - | Review, | Var, | NA |
| 5880- | CAR, | In vitro and in vivo antitumor potential of carvacrol nanoemulsion against human lung adenocarcinoma A549 cells via mitochondrial mediated apoptosis |
| - | vitro+vivo, | Lung, | A549 | - | in-vitro, | Nor, | BEAS-2B | - | in-vitro, | Lung, | PC9 |
| 5881- | CAR, | Carvacrol—A Natural Phenolic Compound with Antimicrobial Properties |
| - | Review, | Nor, | NA |
| 5887- | CAR, | TV, | Antitumor Effects of Carvacrol and Thymol: A Systematic Review |
| - | Review, | Var, | NA |
| 5888- | CAR, | Therapeutic application of carvacrol: A comprehensive review |
| - | Review, | Var, | NA | - | Review, | Stroke, | NA | - | Review, | Diabetic, | NA | - | Review, | Park, | NA |
| 5893- | CAR, | TV, | Thymol and Carvacrol: Molecular Mechanisms, Therapeutic Potential, and Synergy With Conventional Therapies in Cancer Management |
| - | Review, | Var, | NA |
| 5895- | CAR, | Carvacrol as a Therapeutic Candidate in Breast Cancer: Insights into Subtype-Specific Cellular Modulation |
| - | in-vitro, | BC, | MCF-7 | - | in-vitro, | BC, | MDA-MB-231 |
Query results interpretion may depend on "conditions" listed in the research papers. Such Conditions may include : -low or high Dose -format for product, such as nano of lipid formations -different cell line effects -synergies with other products -if effect was for normal or cancerous cells
Filter Conditions: Pro/AntiFlg:% IllCat:% CanType:% Cells:% prod#:57 Target#:275 State#:% Dir#:%
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