Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Hygiene hypothesis essay
A Essay About Hygiene
A Essay About Hygiene
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Hygiene hypothesis essay
The hygiene hypothesis was first proposed in 1989, suggesting that the increase in allergic diseases seen in the western world over the last 50 years is a consequence of increased cleanliness1. Increased cleanliness results in reduced exposure to infectious agents and allergens in early childhood. It is believed that exposure to allergens within the first year of life promotes T-Helper 1 (TH1) response when encountered again later in life, whereas a T-Helper 2 (TH2) response is favoured if the first encounter occurs after the first year of life. The TH2 response stimulates B-cells to release immunoglobulin E (IgE), which has been attributed to the symptoms of allergy2. Whilst this hypothesis has proved highly controversial and sparked many a debate, it still remains unclear whether increased cleanliness is linked to an increased susceptibility to allergens.
Riedler et al.3 reported results on 812 European children, from both farming and non-farming households. Previous studies had shown that endotoxins were found at higher concentrations in farm houses compared to non-farm houses4. Participants completed a questionnaire, detailing allergies that their children had, and their child’s exposure to stables and farm milk within their early childhood. Furthermore, blood serum samples were collected for analysis. Serum IgE response to selected allergens, including pollens, microbes and other infectious agents, was measured. They found that children who were exposed to farm life in their first year of life were less likely to have reported allergies, and also less likely to have positive serum IgE results. In farm exposed children, 1% were diagnosed with asthma, and 12% with atopy, compared to 11% and 29% in non-farm exposed children. T...
... middle of paper ...
... iss. [online]. Available from: http://www.imvs.sa.gov.au/wps/wcm/connect/aa1661c3-a08a-48ee-86da-d66e6ff4d7ca/allergens-interpreting-results.pdf?MOD=AJPERES [Accessed: 5 March, 2014]
6) Perzanowski, M.S., Ng’ang’a, L.W., Carter, M.C. et al. (2002) Atopy, asthma, and antibodies to Ascaris among rural and urban children in Kenya. J Pediatr, 140(5):582-588
7) Brooks, C., Pearce, N., Douwes, J. (2013) The hygiene hypothesis in allergy and asthma: an update. Curr Opin Allergy Clin Immunol, 13(1): 70-77
8) Schaub, B., Liu, J., Hoppler, S. Et al. (2009) Maternal farm exposure modulates neonatal immune mechanisms through regulatory T cells. J Allergy Clin Immunol, 123(4): 774-782
9) Nembrini, C., Sichelstiel, A., Kisielow, J. et al. (2011) Bacterial-induced protection against allergic inflammation through a multicomponent immunoregulatory mechanism. Thorax, 66(9): 755-763
The immune system is made up of a network of cells, tissues, and organs that work together to protect the body, and it defends the body from “foreign invaders.” Immunity can be divided in two three different defenses, and these are defined as first, second and third lines of defense. The first line of defense for the immune system is the primary defense against pathogens entering the body from the surface in order to prevent the start of disease and infection. Some examples of the first line of defense is the skin, protecting the external boundaries of the body, and the mucous membranes, protecting the internal boundaries of the body. Although the skin and mucous membranes work on the internal and external boundaries, they both release chemicals
Sigurdarson,S.T. & Kline, J.N. (2006). School proximity to concentrated animal feeding operations and prevelance of asthma in students. Chest, 129, 1486–1491. Retrieved from http://chestjournal.chestpubs.org/content/129/6/1486.full.pdf
... immune system. The body’s immune system is beneficial to rid of illness and foreign invader our body note to be a threat such as parasite, virus, or bacteria but sometimes it can also reacts to a harmless substance. As a result to protect out immune system, the body manufacture a protective protein barrier called antibodies. This protective agent exhibit swelling and inflammation of tissues whenever an allergic reaction occurs as a response to eliminate the threat (Burks, Harthoorn,Van Ampting, Oude Nijhuis, Langford, Wopereis, & Harvey, 2015). In addition, the anatomical systems of babies are still developing in the sense that, they have small, sensitive airways in their lungs. In a situation of allergy contact, the airways become swollen as a result to rid virus and bacteria; and in response, babies start to cough, sneeze and can progress to wheezing and asthma.
Kohler is one of the biggest brands in the faucet industry offering a way variety of products in its brand portfolio through numerous distributors. Looking at the faucet industry, which Hygieia will be brought. The pricing structure can vary from $150 through $1,200 depending on the materials, cost, and even where the product is marketed to. Hygieia will be brought into the industry with its differentiated features at a price point of $449. When the product line is successful we plan to manufacture a lower price point option, and a third higher price point option.
Following my first sip of milk at the age of one, with the resulting hives and coughing that ensued, I involuntarily joined the community of fifteen million Americans afflicted by food allergies. Living everyday with additional allergies to peanuts, tree nuts, and shellfish has, out of necessity, sharpened my compulsiveness with ingredients and food preparation, but furthermore has spurred me to intervene on behalf of fellow members in this emerging epidemic. The Food Allergy Research and Education (FARE) national organization has been a source of education and support in my own life, and subsequently has aided my efforts to raise awareness among peers, and to nurture my advocacy involvement. Selected as a member of FARE’s Teen Advisory
In the text, The High Cost of Manliness, writer Robert Jensen discusses the harmful effects of having male specific characteristics such as masculinity. It has come to his attention that men’s actions and ways of living are judged based upon the characteristic of being manly. Jenson argues that there is no valid reasoning to have characteristics associated with males. Society has created the notion that masculinity is the characteristic that defines males as males.
Anaphylaxis shock occurs when someone who is sensitive to a substance they are exposed to which results in constricted airway and possible inability to breathe. Parents with children that experience any form of allergic reaction most notify the day care provider so appropriate precautionary steps are taken to maintain a safe health environment for these children. As allergy conditions have slowly increased within our society day care providers have taken more aggressive action to protect these children by extending a “peanut free environment” within the school setting. The percentage of children who experience their first allergic reaction outside the home has increased by 77% over past years daycare providers need to be trained and prepared to handle all types of allergic reaction situations. Steps that a provider and parent should take are as follows: 1. Food allergy action plan, 2. Inform all staff, 3. Post child’s name and allergy,
Rook, G. A. W. (2012). Hygiene hypothesis and autoimmune diseases. Clinical reviews in allergy & immunology, 42(1), 5-15.
“Immune Response: MedlinePlus Medical Encyclopedia.” National Library of Medicine - National Institutes of Health. Web. 18 Dec. 2011. .
Today was quite a nice experience. There were a lot of volunteers in the office so it's kind of hard to have a lot of one-on-one time with patient. I ended up working closely with the hygienist for most of my time there. She showed me her day to day experiences and some techniques she uses to calm patients. It’s important to experience working with every dental professional. As a future dentist I'll be interacting with the entire dental team including the hygienist, so today I decided to stick with the hygienist.
Asthma In Children And Adult Inhabitants In Rural Poland." Allergy 68.5 (2013): 644-650. Academic Search Complete. Web. 12 Nov. 2013.
This literature review will analyze and critically explore four studies that have been conducted on hand hygiene compliance rates by Healthcare workers (HCWs). Firstly, it will look at compliance rates for HCWs in the intensive care units (ICU) and then explore the different factors that contribute to low hand hygiene compliance. Hospital Acquired infections (HAI) or Nosocomial Infections appear worldwide, affecting both developed and poor countries. HAIs represent a major source of morbidity and mortality, especially for patients in the ICU (Hugonnet, Perneger, & Pittet, 2002). Hand hygiene can be defined as any method that destroys or removes microorganisms on hands (Centers for Disease Control and Prevention, 2009). According to the World Health Organization (2002), a HAI can be defined as an infection occurring in a patient in a hospital or other health care facility in whom the infection was not present or incubating at the time of admission. The hands of HCWs transmit majority of the endemic infections. As
Many people who are prone to allergies can develop asthma. Hay fever can be a risk factor for people to develop asthma. Some sufferers don't develop allergies until later in life, and they can develop asthma later too. While
...d the absence of IgE binding from patients allergic to protein from the source as well as histamine release from basophiles is required to be carried out.
Many people are curious why they are allergic and others are not. The answer to this is that allergies are genetic in almost all cases. Scientists and researchers believe that people inherit a tendency to be allergic, although not to any specific allergen. Children are much more likely to develop allergies if their parents have allergies. Interestingly, people with year-round (perennial) allergies commonly develop the problem as adults, and are more likely to be women than men. Symptoms can lessen as you get older, but they rarely completely disappear without treatment.