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Related Concept Videos

Organic Compounds03:02

Organic Compounds

45.9K
All living things are formed mostly of carbon compounds called organic compounds. The category of organic compounds includes both natural and synthetic compounds that contain carbon. Although a single, precise definition has yet to be identified by the chemistry community, most agree that a defining trait of organic molecules is the presence of carbon as the principal element, bonded to hydrogen and other carbon atoms. However, some carbon-containing compounds such as carbonates, cyanides, and...
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What is Organic Chemistry?02:17

What is Organic Chemistry?

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Organic chemistry is the study of compounds of carbon called organic compounds. Organic compounds either originate from living organisms or are synthesized by chemists. A defining trait of these compounds is the presence of carbon as the principal element, which is bonded to other carbon atoms and other elements such as hydrogen, oxygen, nitrogen, and sulfur. The existence of a wide array of organic molecules is a consequence of carbon atoms’ ability to form up to four strong bonds to...
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Aromatic Compounds: Overview01:25

Aromatic Compounds: Overview

11.6K
In general, the term ‘aromatic’ indicates a pleasant smell or fragrance from fresh flowers, freshly prepared coffee, etc. In the early history of organic chemistry, many benzene derivatives were isolated from the pleasant odor oils of the plants. For example, vanillin was isolated from the oil of vanilla, methyl salicylate from the oil of wintergreen, and cinnamaldehyde from the oil of cinnamon. They all had a pleasant odor; hence the name aromatic was given.
In 1825, Faraday...
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Compounds Essential to Human Function01:25

Compounds Essential to Human Function

7.5K
The human body is composed of cells that are fundamentally made up of several different molecules. These molecules are essential to carry out all physiological processes in the body and are broadly classified into organic and inorganic based on their chemical structures.
Inorganic Compounds Essential to Human Functioning
Inorganic compounds essential to human functioning include water, salts, acids, and bases. These compounds are inorganic, i.e., they do not have a carbon-hydrogen bond. Water...
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Radical Autoxidation01:20

Radical Autoxidation

2.5K
The oxidation of an organic compound in the presence of air or oxygen is called autoxidation. For example, cumene reacts with oxygen to form hydroperoxide. Autoxidation involves initiation, propagation, and termination steps. Many organic compounds are susceptible to autoxidation—especially ethers in the presence of oxygen, which form hydroperoxides. Even though this reaction is slow, old ether bottles contain small amounts of peroxide, which leads to laboratory explosions during ether...
2.5K
Effects of Chemicals: Overview01:27

Effects of Chemicals: Overview

2.4K
Drugs, encompassing various chemical compounds from natural sources, lab synthesis, or genetic engineering, elicit different biological responses in living organisms. Some of these responses are desirable or therapeutic, while others are undesirable. The primary goal of administering a drug is to achieve a therapeutic effect, that is, to address a specific disease or health condition. Any concurrent effects outside of this therapeutic outcome are considered undesirable. These undesirable...
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Employing Pressurized Hot Water Extraction PHWE to Explore Natural Products Chemistry in the Undergraduate Laboratory
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The basic science of natural ingredients.

Aimee Krausz, Holly Gunn, Adam Friedman

    Journal of Drugs in Dermatology : JDD
    |August 14, 2014
    PubMed
    Summary

    Polyphenols in herbal products, like soy and green tea, can fight oxidative stress for skin health. Further research is needed to understand their full potential for treating skin conditions.

    Area of Science:

    • Dermatology
    • Pharmacology
    • Natural Products

    Background:

    • Herbal products are increasingly popular for skin conditions and cosmetic use.
    • The unregulated nature of botanical extracts necessitates research into their efficacy and safety.
    • Oxidative stress contributes to skin aging and disease, making antioxidant therapies crucial.

    Purpose of the Study:

    • To review the molecular targets of common topical polyphenols.
    • To highlight the role of polyphenols in combating oxidative stress in dermatologic applications.
    • To assess the therapeutic potential of botanical extracts in skincare.

    Main Methods:

    • Literature review of scientific studies on topical polyphenols.
    • Analysis of research on the mechanisms of action of key botanical ingredients.

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  • Focus on polyphenols found in soy, green tea, oats, curcumin, and silymarin.

    • Main Results:

    • Polyphenols, particularly from sources like green tea and curcumin, inhibit oxidative stress pathways.
    • These natural compounds target key mediators involved in skin inflammation and aging.
    • Evidence suggests potential benefits for chronic dermatologic diseases and cosmeceutical applications.

    Conclusions:

    • Topical polyphenols offer a promising complementary strategy for managing oxidative stress in skin conditions.
    • Further investigation into bioavailability and specific functions is essential for clinical application.
    • Standardization and regulation of herbal products are needed to ensure safety and efficacy.