exposure

5,6-trans-Vitamin D3(5,6-trans-Cholecalciferol) is an isoform of Vitamin D3, which is converted from Vitamin D3 on the skin surface after light exposure.

Potassium iodide is used as the treatment of overactive thyroid and as protection of the thyroid gland from the influences of radiation from swallowed or inhaled radioactive iodine. It may be used after accidental exposure to radioactive iodine or before and after administration of medicine containing radioactive iodine.

Propoxur (Propoxure) is an insecticide used to control cockroaches, flies, mosquitoes, and lawn and turf insects. Acute (short-term) exposure of humans to propoxur by ingestion leads to cholinesterase inhibition of red blood cells, with mild cholinergic symptoms including blurred vision, nausea, vomiting, sweating, and tachycardia; however, the effects are transient. Chronic (long-term) inhalation exposure has resulted in depressed cholinesterase levels, headaches, vomiting, and nausea in humans. Chronic ingestion studies in animals have reported depressed cholinesterase levels, depressed body weight, effects to the liver and bladder, and a slight increase in neuropathy. No information is available on the reproductive, developmental, or carcinogenic effects of propoxur in humans. Mixed results are available from cancer studies of propoxur in animals. EPA has not classified propoxur for carcinogenicity.

Praziquantel (Droncit) increases the permeability of the tegument of susceptible worms, resulting in an influx and increase in intra-tegumental calcium leading to rapid contractions and paralysis of the worm's musculature through a subsequent increase in levels of calcium in the sarcoplasmic reticulum. Praziquantel is a pyrazinoisoquinoline derivative with anthelminthic property. In addition, vacuolization of the tegumental syncytium and blebbing results in tegument disintegration, leads to antigen exposure and elicit host defense responses to the worm.

Levobupivacaine is an amino-amide local anaesthetic drug belonging to the family of n-alkylsubstituted pipecoloxylidide. It is the S-enantiomer of bupivacaine. Levobupivacaine hydrochloride is commonly marketed by AstraZeneca under the trade name Chirocaine. Compared to bupivacaine, levobupivacaine is associated with less vasodilation and has a longer duration of action. It is approximately 13 per cent less potent (by molarity) than racemic bupivacaine.Levobupivacaine is indicated for local anaesthesia including infiltration, nerve block, ophthalmic, epidural and intrathecal anaesthesia in adults; and infiltration analgesia in children. Adverse drug reactions (ADRs) are rare when it is administered correctly. Most ADRs relate to administration technique (resulting in systemic exposure) or pharmacological effects of anesthesia, however allergic reactions can rarely occur.

1-Hydroxypyrene (1-Pyrenol), a biomarker of exposure to polycyclic aromatic hydrocarbons, is analyzed in urine samples.

Ensulizole is a sulfonated ultraviolet absorber that strongly absorbs UVB and some UVA, and under UV or sunlight exposure, it produces reactive oxygen species that can damage DNA.

Fluticasone furoate (Avamys) is a synthetic trifluorinated corticosteroid derived from fluticasone with a Kd of 0.3 nM. Fluticasone furoate has potent anti-inflammatory, anti-asthmatic activity, and low systemic exposure. Fluticasone furoate can be used as a nasal spray for studies about allergic rhinitis treatment.

1. Raspberry ketone (p-Hydroxybenzyl acetone) is cytotoxic to melanocytes through the binding of RK-derived quinones to thiol proteins and the pro-oxidant activity of the RK-oligomer, the exposure of human skin to RK can cause chemical occupational leukoderma. 2. Raspberry ketone is marketed on the Internet as a food supplement.

Boscalid is a broad-spectrum carboxamide fungicide that inhibits fungal respiration by binding to the ubiquinone site of mitochondrial complex II succinate dehydrogenase.1It suppresses mycelial growth ofS. minorby 87 to 100% and ofS. sclerotiorumby 77 to 100% when used at a concentration of 1 μg ml.2In field studies, boscalid applied at 5.6 μg cm2provides 55.5 and 30.4% disease control for lettuce drop caused byS. minorandS. sclerotiorum, respectively. It decreases cell viability of mouse primary cortical neurons following long-term exposure but is not cytotoxic (LC50= >100 μM for acute and continuous exposure). Formulations containing boscalid have been used in agriculture to prevent fungal growth on crops. 1.Wang, Y., Duan, Y., Wang, J., et al.A new point mutation in the iron-sulfur subunit of succinate dehydrogenase confers resistance to boscalid in Sclerotinia sclerotiorumMol. Plant Pathol.16(7)653-661(2015) 2.Matheron, M.E., and Porchas, M.Activity of boscalid, fenhexamid, fluazinam, fludioxonil, and vinclozolin on growth of Sclerotinia minor and S. sclerotiorum and development of lettuce dropPlant Dis.88(6)665-668(2004)

Dimethyl phthalate (Fermine) has many uses, including in solid rocket propellants, plastics, and insect repellants. Acute (short-term) exposure to dimethyl phthalate, via inhalation in humans and animals, results in irritation of the eyes, nose, and throat. No information is available on the chronic (long-term), reproductive, developmental, or carcinogenic effects of dimethyl phthalate in humans. Animal studies have reported slight effects on growth and on the kidney from chronic oral exposure to the chemical. EPA has classified dimethyl phthalate as a Group D, not classifiable as to human carcinogenicity.

2-Hydroxyisobutyric acid (α-Hydroxyisobutyric acid) is a metabolite of methyl tert-butyl ether (MTBE). MTBE may be obtained through environmental exposure. MTBE is rapidly eliminated from the body, mainly through expired air as the unchanged compound. MTBE is to some extent metabolised to t-butyl alcohol (TBA) and formaldehyde and oxidised to 2-methyl-1,2-propanediol and a-hydroxy isobuturic acid. 2-Hydroxyisobutyric acid has been used as an arial bactericide.

Cinnamyl alcohol (Styryl Carbinol) readily autoxidizes upon air exposure, and forms strong sensitizers as determined by the local lymph node assay.

Lauroylsarcosine sodium salt(Sarkosyl NL sodium) is an anionic surfactant and detergent with protein denaturing properties commonly used in molecular biology research for purification of membrane proteins, promotion of cell lysis in RNA purification experiments and membrane solubilization, and toxicity to A549 cells after ALIF or SME exposure.

Pyridinium bisretinoid A2E (A2E) is a fluorescent chromophore isolated from lipofuscin in retinal pigment epithelium, a lipophilic cation and weak photosensitizer with cytotoxicity. A2E promotes apoptosis under blue light exposure and induces autophagy under photoactivation, damaging membrane integrity in a concentration-dependent manner.

N-Oleoyl valine is an endogenous N-acyl amine that acts as an antagonist at the transient receptor potential vanilloid type 3 (TRPV3) receptor, which is involved in thermoregulation. N-Oleoyl valine is increased in mice following cold exposure for up to at least 16 days. Acute lung injury in mice increases the concentration of N-Oleoyl valine in lung tissue. N-acyl amines also promote mitochondrial uncoupling.

1. Ethyl trans-caffeate (Caffeic Acid Ethyl Ester) has anti-inflammatory activity. 2. Ethyl trans-caffeate may as a promising natural compound for future application in chronic liver disease. 3. Ethyl trans-caffeate is a potent chemopreventive compound against skin carcinogenesis caused by solar UV exposure. 4. Ethyl trans-caffeate is the high-resolution structures of representative inhibitors in complex with human pancreatic α-amylase. 5. Ethyl trans-caffeate strongly inhibits neoplastic transformation of JB6 Cl41 cells without toxicity. PI3K, ERK1 2, and p38 kinase activities were suppressed by direct binding with HOEC in vitro.

1. Betulonic acid (Liquidambaric acid) amide stimulated the regenerative response in hepatocytes under conditions of combined toxic exposure and promoted recovery of their qualitative and quantitative characteristics, which was accompanied by a significant decrease in the severity of liver fibrosis and the absence of cirrhotic transformation of the liver. 2. Betulonic acid derivatives have a promising cytostatic activity in vitro and could be used as potential leads for the development of new type of anti-cancer agents. 3. Betulonic acid has antiholestatic effects in mice.

DPQ is a potent inhibitor of PARP-1 that can be used in neuroprotection research. DPQ reduce the PARP activation induced by N-methyl-d-aspartate (NMDA), restoring ATP to near control levels as well as significantly attenuating neuronal injury in the severe NMDA exposure model [1].

AZD0022 is a selective and orally active KRAS G12D inhibitor that displays exposure-dependent pRSK inhibition in a GP2D xenograft model.

7-Methyladenine (NSC-7857) can be used as a marker of exposure to exogenous and carcinogenic methylating agents.

C-DIM12 induced expression of Nurr1-regulated genes. C-DIM12 increased expression of transfected human Nurr1, induced Nurr1 protein expression in primary dopaminergic neurons and enhanced neuronal survival from exposure to 6-OHDA.

Levofloxacin N-oxide is an inactive metabolite of the antibiotic levofloxacin . Levofloxacin N-oxide is also a degradation product of levofloxacin that is formed through exposure to daylight or hydrogen peroxide.

L-(+)-Abrine (L-N-Methyltryptophan) is a toxic protein found in the jequirity seed.,can be used as a biomarker for abrin exposure.