Related Experiment Video

Updated: Aug 3, 2026

Manual Isolation of Adipose-derived Stem Cells from Human Lipoaspirates
07:23

Manual Isolation of Adipose-derived Stem Cells from Human Lipoaspirates

Published on: September 26, 2013

Human collagen digestion: I. Nature of the digestion kinetics as a function of age and structure

J S Holton, M H Litt, R R Kohn

    Experimental Gerontology
    |January 1, 1983
    PubMed

    More Related Videos

    Preparation and Culture of Myogenic Precursor Cells/Primary Myoblasts from Skeletal Muscle of Adult and Aged Humans10:10

    Preparation and Culture of Myogenic Precursor Cells/Primary Myoblasts from Skeletal Muscle of Adult and Aged Humans

    Published on: February 16, 2017

    Isolation, Characterization, and Purification of Macrophages from Tissues Affected by Obesity-related Inflammation07:46

    Isolation, Characterization, and Purification of Macrophages from Tissues Affected by Obesity-related Inflammation

    Published on: April 3, 2017

    Related Concept Videos

    What is Monogastric Digestion?01:50

    What is Monogastric Digestion?

    The human body contains a monogastric digestive system. In a monogastric digestive system, the stomach only contains one chamber in which it digests food. Several other animal species also have monogastric digestive systems, including pigs, horses, dogs, and birds. This chapter, however, focuses on the human digestive system.
    Lipid Digestion01:06

    Lipid Digestion

    Lipids are large molecules that are generally not water-soluble. Since most of the digestive enzymes in the human body are water-based, there are specific steps the body must take to break down lipids and make them available for use.
    Protein Digestion01:02

    Protein Digestion

    Protein digestion begins in the stomach, where the highly acidic environment can easily disrupt protein structure by exposing the peptide bonds of polypeptide chains. After polypeptide chains are broken into individual amino acids by a series of digestive enzymes, the amino acids are transported to the liver via the bloodstream to produce energy.
    Structural Protein Function01:56

    Structural Protein Function

    Structural proteins are a category of proteins responsible for functions ranging from cell shape and movement to providing support to major structures such as bones, cartilage, hair, and muscles. This group includes proteins such as collagen, actin, myosin, and keratin.
    Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity.  In bones and teeth, it mineralizes to form...
    Collagens are the Major Structural Proteins of ECM01:13

    Collagens are the Major Structural Proteins of ECM

    Three main types of fibers are secreted by fibroblasts: collagen fibers, elastic fibers, and reticular fibers. Collagen fiber is made from fibrous protein subunits linked together to form a long, straight fiber. Collagen fibers, while flexible, have great tensile strength, resist stretching, and give ligaments and tendons their characteristic resilience and strength. These fibers hold connective tissues together, even during the body's movement.
    Connective tissue proper includes loose...
    The Effect of Aging on Tissues01:19

    The Effect of Aging on Tissues

    Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...