Essays on Melanin

Source One:

http://uofmhealthblogs.org/womens/pregnancy-childbirth/oh-body-will-change-pregnancy/8463/

Posted by Helen Kang Morgan, MD on September 24, 2013 In addition to the obvious physical changes as your belly grows during pregnancy, what other surprises may your body have in store for you? Pregnancy is an exciting time, but often one filled with many questions — is my baby healthy, can I do this/eat that, and what the heck is happening to my body?

During your first trimester, you’ll probably feel tired, perhaps more tired than you’ve ever felt before. Get as much rest as you can. About 70 percent of women will also ...

Many products all over the world find their way to the market but end up remaining on the shelves as the public is not well informed about their existence. As a result firms have found it useful to use commercial advertisements to campaign for their products. Market agents use both print and online advertisements to create awareness to the people about their products. This paper focuses on the commercial advertisement of skin whitening creams; the specific advertisement is the L’oreal Paris whitening cream (www.loreal.com) skin whitening Aishawarya Rai. This advertisement is selected because it is based on a controversial aspect ...

The characteristic of the hominid is reflected by an upright gait of the individual. The other characteristics are that the hominid does have the large and increased size of the brain and the individuals considered intelligent.Compared to other primates in anthropology hominid have a trodden face and there teeth are different due to the reduction size of the teeth and jaws of the species. The value of the dark skin in tropical latitudes is that they have is melanin that in most cases referred to act as the protection of the human skin.The melanin acts as a protective biological shield ...

Abstract

The analysis of literature review of this research was on the effects of tanning beds to the skin, a topic that is getting news rating because it bans the use of tanning beds in younger populations according to the current Louisiana’s new legislation. This study is predestined to review the augment that artificial tanning, as a comparative background of the skin has impacts. According to Demko, et. al., 2003, the risks of skin cancer claims, have been brought on board, concerning tanning beds being behind the increased cancer risk, though, through the research conducted, there is support and opposition ...

Abstract

The red squirrel is one of the modern wonders of evolution. The squirrel has a surprisingly red toned fur as opposed to the conventional grey squirrels. The red pigmentation of the fur of this squirrel can be attributed to a process known as melanism. This is the process through which darker pigmentation occurs. This dark pigmentation can be expressed either in skin or in feathers or in fur. There are a number of factors leading to the development of the red squirrel for example habitat. The red squirrel lives in Europe and primarily in Denmark. The squirrel also lives on top of ...

Vitiligo is a disorder due to depigmentation of the skin. This is an acquired disorder characterized by patches of hypo pigmented patches on the skin and mucous membranes. This disorder is commonly linked to autoimmune conditions such as abnormalities of the thyroid. In this condition, the melanocytes, the cells responsible for manufacturing melanin are destroyed and unable to produce adequate melanin. Melanin is the pigment that produces skin color. This causes white patches and de-pigmented macules to occur in different parts of the body including mucous membranes and the retina. The hair growing in areas affected by vitiligo also tend ...

Chapter 2 – Literature Review

Chapter II The Review of the Related Literature Introduction During the past decades, breakthroughs in the study of Vitamin D and findings pointing to its importance in maintaining health have been made. Apart from the found importance of Vitamin D in human skeletal development, further evidence is attributing the benefits of adequate Vitamin D to the development of other tissues in the body. In addition, the prior belief regarding the amount of Vitamin D needed in the body was changed encompassing new findings that the human body needs more Vitamin D than usually thought (Holick, 2004). ...

Role of the integumentary system in protecting the body

Introduction Human body, like all higher order vertebrates, relies on multiple organ systems for maintenance of homeostasis, the integumentary system is but one of them. Anatomically, the integumentary system has two components :the cutaneous membrane(the skin) and its accessory structures. The skin comprises of the dermis and epidermis whereas the later include hair, nails, and exocrine glands located in the dermis. Interestingly, both the cutaneous and accessory structures share a common embryological origin: The ectoderm (Martini 2005, p.151). With respect to functioning, the skin is involved in a variety of physiologic functions, the most obvious being protection of the ...

Racial classification of human beings involves the categorization of human beings by heritable characteristics, physical appearance, social status and ethnicity. This classification has many problems. Definition of race is difficult, and there exist no objective rules for making a decision concerning what constitutes a race or the race an individual belongs. Some individuals can belong to more than one race. Race is cultural construct and not biological, and the notion that race is biological construct derived from a false assumption, and this reduces the understanding and appreciation of the variation (Malik).

‘New races’ have not been slotted in to the present classification. ...

Introduction

Contrary to what most people believe, American men are more prone to skin cancer than women (Voiland, 2008). In fact, according to statistics, more men die due to skin cancer than women every year and there are reasons behind this fact. This paper will identify some of the most common reasons why men are more prone to skin cancer than women using strong evidences from journals and publications synthesized over the internet and from books.

What is Skin Cancer?

Before trying to compare both sexes’ vulnerability for skin cancer, it may be wise to identify first and know the nature of the said disorder. ...

Introduction

The skin is an essential organ in the human body made of a complex membrane of cells, tissues and pigments that hold the body together. Similarly, the skin color is determined by the amount of melanin, the location of melanin and melanocytes, and the presence of caretenoids (Ostler, et al., 2004). Further, the ratio between oxygenated blood and hemoglobin and exogenous or endogenous pigments, also affect the skin color. Melanin is a vital tissue in the skin and the malfunction of melanocytes system, can lead to pigmentation disorder (Rose, 2009). The malfunction of melanocytes system can amount to melanocytic nevi, a ...

Introduction

Tanning seems to be the latest trend in recent years, whether “artificially” at tanning salons, or naturally from sun exposure enjoying a day at the beach or by the pool. Many people tan with hopes of obtaining that “natural glow” without giving thought to how this exposure is affecting them. Some of the artificial methods used for tanning include; tanning beds, tanning lotions, tanning pills and tanning sprays. Natural tanning (from exposure to the sun) as well as tanning by use of tanning beds depends on exposure to UV rays which are divided into UV-A and UV-B. The rays penetrate ...