skin structures and blood vessels. So some smokers appear pale‚ while others develop uneven coloring and there wrinkles develop earlier and go deeper. There are more than 4‚000 chemicals in tobacco smoke‚ and many of them trigger the destruction of collagen and elastin. Yellow teeth are
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substitution was found at position 893 in the DNA sequence‚ causing the thymine replaced by guanine‚ resulting in the replacement of methionine by arginine at the position 298. LOX is a copper-dependent enzyme that cross-links the two structural proteins‚ collagen and elastin‚ on the blood vessel membrane. Methionine is the amino acid that is essential for blood vessels growing and is located within the copper binding domain of LOX. Thus‚ the substitution of methionine suggests potential structural alteration
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The incisions are made parallel to the Langer’s lines to allow the wound to heal properly and with less scarring. The Langer’s lines‚ also called cleavage lines‚ represent the natural orientation of collagen fibers beneath the skin. The use of these lines also minimizes tissue loss‚ thus reducing the need for amputation. For an effective wound closure‚ a vacuum-assisted closure device has been increasingly used. Vacuum-assisted closure (VAC) therapy
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Unit 5 P2 Explain what they are‚ their functions and where they are found. Then go into detail about two organs‚ with their functions‚ what tissues they are made of and where they are found in the body. Tissues: Tissues are groups of similar cells that have specific functions. In this piece of work I’ll talk about these types of cells: Epithelial Tissues: Epithelial are the lining of internal and external surfaces and body cavities‚ including tubes/channels (ducts) carrying secretions from glands
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Discuss why hydrogen bonding is essential for life Throughout biochemistry there are many bonds without which life as it is on earth today would not be possible. One of the most important bonds of these is the hydrogen bond‚ a weak chemical bond that is present in essential biological molecules such as water and polypeptides. A hydrogen bond is defined by Campbell and Reece as occurring when a hydrogen atom is covalently bonded to an electronegative atom but attracted to another electronegative
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Background Is a Dense Fruit a Healthy Fruit? We all try to live a healthy and balanced life. We do this in many ways including exercising and eating “healthy” foods. But how do we really know what foods are “healthy”? This project looks to see how food density correlates to nutritional content? What does healthy mean? When talking bout food “healthy” means to be nutrient dense. These foods have a low ratio of calories in relation to the amount of nutrients they contain. Many foods that are nutrient
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vertebral discs ELASTIC CARTILAGE A cartilage cell is called a chondroblast Fibrocartilage has more collagen fibers than other cartilages Appositional = (growth in diameter) 1. Increased activity of the chondroblasts 2. Extracellular matrix is added on the sides. Interstitial = (growth in length) 1. Increased activity of the chondrocytes 2. Extracellular matrix is added between the cells Collagen fibers Minerals Osteoblasts: lay down new bone Osteocytes: mature bone cell; found in lacunae Osteoclasts:
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Athletics have always brought out the competitive side of people; in today ’s society the will to win has been taken to a new level‚ to the point where athletes are using legal and illegal drugs to enhance their power and stamina. There are a number of drugs that can help enhance your performance but in this paper I will focus on anabolic androgen steroids‚ which are a derivation of testosterone (Yesalis xxiv). But many of the negative results that occur because of the use of steroids are similar
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Sugar Addiction and Its Effects on the Human Body Roy Marvitz Course: BSC-1010 Gary Brannan Date: April 03‚ 2013 Sugar Addiction and Its Effects on the Human Body Research done recently has shed light on the issue of sugar addiction and its effects on the health of human beings. The qualities in sugar that make it addictive have been confirmed by scientists. A study by Colantuoni‚ Carlo‚ Pedro‚ Rada‚ McCarthy‚ Patten‚ Nicole‚ Chadeayne‚ and Hoebel in 2002 sought to establish whether
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You can use products such as aloe vera‚ essential oils‚ and certain vitamins to get rid of acne scars naturally. Many fruits and vegetables will also help remove scars. I Want to Know How to Get Rid of Scars Naturally What Are Some Good Ways to Get Rid of Scars Naturally? Various surgical procedures are available for removing acne scars. Many people prefer to avoid surgery except in extreme cases because it’s expensive‚ it’s invasive‚ and it often takes a long time to heal. They prefer to try
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