Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 31, Problem 3DAA
Cultured Skin for Healing Wounds Diabetes is a disorder in which the blood sugar level is not properly controlled. Among other effects, it reduces blood flow to the lower legs and feet. As a result, about 3 million diabetes patients have ulcers (open wounds that do not heal) on their feet. Each year, about 80,000 require amputations.
Several companies provide cultured cell products designed to promote the healing of diabetic foot ulcers. FIGURE 31.15 shows the results of a clinical experiment that tested the effect of one such cultured skin product versus standard treatment for diabetic foot wounds. Patients were randomly assigned to either the experimental treatment group or the control group, and their progress was monitored for 12 weeks.
FIGURE 31.15 Treatment of diabetic food ulcers. Results of a multicenter study of the effects of standard treatment versus use of a cultured cell product for diabetic foot ulcers. Bars show the percentage of foot ulcers that had completely healed.
How early was the healing difference between the control and treatment groups obvious?
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New treatments for several conditions are being developed using stem cells in medical waste, such as biopsy material, teeth, menstrual blood, umbilical cords, and fatty tissue removed in liposuction. For example, fat samples from injured horses are used to grow stem cells to treat tendon injuries. Explain how the two defining characteristics of stem cells enable them to be used to replace damaged or diseased tissue, so that the new tissue functions as opposed to forming a scar.
Discuss/explain, in details, the relationship between cell viability and cell vitality and cell apoptosis as suggested by neutral red uptake,
Chapter 31 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 31 - Cultured Skin for Healing Wounds Diabetes is a...Ch. 31 - Cultured Skin for Healing Wounds Diabetes is a...Ch. 31 - Cultured Skin for Healing Wounds Diabetes is a...Ch. 31 - ___ tissues are sheetlike with one free surface....Ch. 31 - _______ keep fluid from leaking between cells. a....Ch. 31 - Exocrine glands are specialized ______ tissue. a....Ch. 31 - A rubbery secreted matrix or proteoglycans and...Ch. 31 - Blood cells develop from stem cells in ________....Ch. 31 - Prob. 6SQCh. 31 - Cytoplasmic extensions of _______ send and receive...
Ch. 31 - ______ muscle pulls on bones and _______ muscle...Ch. 31 - Straps or dense, regular connective tissue...Ch. 31 - ______ increase the surface area of some...Ch. 31 - Tears are an _______ secretion released by...Ch. 31 - Cancers most commonly arise in ______ tissue. a....Ch. 31 - The most abundant protein in your body is _______....Ch. 31 - Match each term with the most suitable...Ch. 31 - With negative feedback, detection of a change...Ch. 31 - IPSCs are nearly identical to human embryonic stem...Ch. 31 - Radiation and chemotherapy drugs preferentially...Ch. 31 - Each level of biological organization has emergent...
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