U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

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Showing 1391 - 1400 of 1416 results

Parthenolide is a sesquiterpene lactone found in Tanacetum that exhibits anticancer chemotherapeutic, anti-metastatic, anti-angiogenic, anti-inflammatory, and antinociceptive activities. Parthenolide acts as a partial agonist at transient receptor potential ankyrin 1 (TRPA1) channels and desensitizes them, preventing release of calcitonin gene-related peptide (CGRP). Additionally, parthenolide inhibits ATPase activity of NLRP3 and protease activity of caspase 1. In multiple myeloma cells, parthenolide decreases expression of NF-κB, VEGF, and IL-6 and increases expression of IκB kinase, inhibiting cell migration and tubule formation. In non-small cell lung cancer (NSCLC) cells, parthenolide decreases levels of MCL-1 and increases levels of MAIP-1, triggering ER stress and inducing cell cycle arrest and apoptosis. In breast cancer cells, this compound activates NADPH oxidase and increases ROS generation, increasing levels of p-JNK and downregulating NF-κB, VEGF, and matrix metalloproteinases 2 and 9 (MMP2/9); in vivo, parthenolide inhibits tumor growth and metastasis. Parthenolide has being shown to have agonistic activity against adiponectin receptor 2. Parthenolide is in phase I clinical trials by Ashbury Biologicals for the treatment of cancer. However, there is no recent report of this research.
Status:
US Approved Allergenic Extract (1994)

Class (Stereo):
CHEMICAL (ACHIRAL)

Conditions:

Thiram is a pesticide, It is used as a fungicide, ectoparasiticide to prevent fungal diseases in seed and crops. It is also used as an animal repellent to protect fruit trees and ornamentals from damage by rabbits, rodents and deer. Thiram belongs to the ethylene bisdithiocarbamate (EBDC) chemical class. It is available as dust, flowable, wettable powder, water dispersible granules, and water suspension formulations and in mixtures with other fungicides. Thiram has been used in the treatment of human scabies, as a sun screen and as a bactericide applied directly to the skin or incorporated into soap. Thiram is a skin sensitizer. It is moderately toxic by ingestion, but it is highly toxic if inhaled. Acute exposure in humans may cause headaches, dizziness, fatigue, nausea, diarrhea and other gastrointestinal complaints. In rats and mice, large doses of thiram produced muscle incoordination, hyperactivity followed by inactivity, loss of muscular tone, labored breathing, convulsions and death.
Status:
US Approved Allergenic Extract (1994)

Class (Stereo):
CHEMICAL (ACHIRAL)

Zinc dithiocarbamate is a chemical compound, used in a polymer industry as a vulcanization accelerator. In medicine, dithiocarbamates of zinc and other metals were found to inhibit proteasome and NF-kappaB signaling pathway. Zinc dithiocarbamate is known allergen, it is a component of an approved patch test used to diagnose allergic contact dermatitis.
Status:
US Approved Allergenic Extract (1994)

Class (Stereo):
CHEMICAL (ACHIRAL)


Conditions:

Benzylparaben (BzP), a type of parabens being used as a preservative agent in cosmetics, food, and pharmaceutical products. It is an allergic compound, which was shown to fit well into the agonist pocket of human estrogen receptor α (hERα).
Status:
US Approved Allergenic Extract (1994)

Class (Stereo):
CHEMICAL (ACHIRAL)



Cinnamyl alcohol (CAL, 3-phenyl-2-propen-1-ol) is found mostly in esterized form as a natural component in cinnamon oil obtained from the bark of the Cylonese cinnamon tree. Furthermore, (esterized) CAL is a component of the balsam of Peru from Myroxylon pereirae, of Styrax (balsam) from the wood of Liquidambar orientalis Miller or Liquidambar styraciflua L. and further plant extracts. The regulatory status of CAL includes approval (21 CFR 172.515) by the FDA and Generally Recognized as Safe (GRAS) as flavor ingredient [Number 2294] by the Flavor and Extract Manufacturers Association. CAL included in the Council of Europes list of substances which may be used in foodstuffs. CAL have been reported as common component of food occurring mainly in a wide variety of fruits, vegetables, and spices in varying concentrations. The plant phenolic CAL is used as a fragrance ingredient and has antipyretic and antiproliferative effects. A recent report also demonstrated its vasodilatory activity.
Status:
US Approved Allergenic Extract (1994)

Class (Stereo):
CHEMICAL (ACHIRAL)

N,N'-Diphenyl-p-phenylenediamine is used as an antioxidant and/or stabilizer for rubber, petroleum oils and feedstuffs. It is also used as a polymerization inhibitor and a retardant against copper degradation. It is a chemical intermediate to make dyes, drugs, plastics and detergent additives.
Status:
US Approved Allergenic Extract (1994)

Class (Stereo):
CHEMICAL (ACHIRAL)


Morpholinylmercaptobenzothiazole is a chemical allergen, it is used in the vulcanization of rubber. It is used for diagnosis of contact allergy. It is a component of Mercapto Mix, used in the epicutaneous patch test, called T.R.U.E. TEST, approved by FDA in 1994. T.R.U.E. TEST is indicated for use as an aid in the diagnosis of allergic contact dermatitis in persons 18 years of age and older whose history suggests sensitivity to one or more of the 35 substances included on the T.R.U.E. TEST panels.
Status:
US Approved Allergenic Extract (1994)

Class (Stereo):
CHEMICAL (ACHIRAL)


Diphenylguanidine (DPG) has been used as a primary and secondary accelerator in the vulcanization of rubber. Exposure to DPG may occur as a result of dermal contact during rubber manufacture or from contact with the finished products. DPG is poorly absorbed through skin. It can be found in latex gloves and other rubber products found in homes and offices. Diphenylguanidine is a standardized chemical allergen. It is used for diagnosis of contact allergy. It is a component of Carba Mix, used in the epicutaneous patch test, called T.R.U.E. TEST, approved by FDA in 1994. T.R.U.E. TEST is indicated for use as an aid in the diagnosis of allergic contact dermatitis in persons 18 years of age and older whose history suggests sensitivity to one or more of the 35 substances included on the T.R.U.E. TEST panels.
Status:
US Approved Allergenic Extract (1994)

Class (Stereo):
CHEMICAL (ACHIRAL)

Conditions:

Tetramethylthiuram monosulfide (TMTM) is used as a secondary accelerator and activator in the processing of natural and butyl rubbers. It is used as a fungicide, and insecticide.
Status:
US Approved Allergenic Extract (1994)

Class (Stereo):
CHEMICAL (ACHIRAL)


2,2'-dithiobisbenzothiazole is a Standardized Chemical Allergen as labeled by US Food and Drug Administration. and can cause an allergic contact dermatitis.Its physiologic effect is by means of increased histamine release, and cell-mediated immunity. 2,2'-dithiobis(benzothiazole) is a useful compound in the rubber industry as a vulcanization accelerator. 2,2'-dithiobis(benzothiazole) was marketed to the rubber industry under the tradename Altax(TM) by the R. T. Vanderbilt Company, Inc. and was originally developed for safe processing of rubber compounds cured at above 142° C. 2,2'-dithiobis(benzothiazole) is widely used in compounds of all types for many major commercial applications. It may be carcinogenic for human. The mortality (1955-2005) and cancer morbidity experience (1971-2005) of a cohort of 363 male production workers exposed to MBT while employed at a chemical factory in north Wales showed a significant excess mortality for cancers of the large intestine.

Showing 1391 - 1400 of 1416 results