Wednesday, October 5, 2011
There are two types of contact dermatitis: allergic and irritant. Allergic contact dermatitis results from a reaction of the immune system. The immune system overreacts to a foreign substance and is activated to produce antibodies against this allergen. The antibody is stored in mast cells. When they come in contact with the allergen, the antibodies promote release of chemicals and hormones called "mediators." The effect of these mediators cuase the allergic reaction, in this case an itchy rash. In allergic contact dermatitis, you have a skin reaction to something that has touched your skin at that site. The reaction does not occur the fist time you are exposed, however. Irritant contact dermatitis comes from coming in contact with a substance that directly damages your skin. Allergic dermatitis is usually confined to the area where the trigger actually touched the skin, whereas irritant dermatitis may be more widespread. The symptoms include: a red rash, blisteres or hives, and itchy or burning skin.
The cause of mast cell leukemia is unknown. The symptoms include: tiredness, lack of energy, shortness of breath during physical activity, pale skin, swollen gums, slow healing of cuts and bruises, small red spots under the skin, extensive bleeding from minor wounds, mild fever, bruise-like marks that appear without cause, aches in bones, knees, hips or shoulders, burning sensation in abdomen when moving, vomiting blood, bloody stools, nausea, unexplained weight loss, and changes in appetite.
Hyperbaric oxygen therapy is the breathing of 100% oxygen while inside a treatment chamber, at a pressure higher than sea-level pressure. It has long been accepted as the definitive treatment for decompression illness. The treatment may be carried out in either a monoplace (one person) or multiplace (multiple people) chamber. The purpose of the chamber is to provide increased amounts of oxygen to the body.
Epinephrine injection is used to treat life-threatening allergic reactions. It works by relaxing the muscles in the airways and tightening the blood vessels.
#SWAG
Contact Dermatitis
What causes Contact Dermatitis is that the immune system overreacts to a prolonged exposure to a foreign substance, usually from an animal or vegetable protein. Then the immune system is activated to produce antibodies `against the foreign substance. The antibodies release mediators that cause the symptoms of the allergic reaction
Symptoms:
· A red rash is the usual reaction
- Your skin may blister, or you may get a raised red rash, called hives, sometimes in a pattern that points to the foreign substance
- Your skin will itch and may perhaps burn.
Treatment:
· Diphenhydramine- is an antihistamine that reduces the natural chemical histamine in the body.
Churg-Strauss Syndrome
What causes Churg-Strauss syndrome is not known, but it involves an abnormal over-activation of the immune system in a person with asthma.
Symptoms:
· Fatigue
· weight loss
· inflammation of the nasal passages
· numbness
· weakness
Treament:
· Prednisone- used to treat inflammatory diseases.
Mixed Connective Tissue Disease
What causes mixed connective is caused by an overlap illnesses (systemic lupus erythematosus and scleroderma) and have high amounts of the in their blood. Mixed connective tissue disease patients do not typically have other antibodies needed in the body.
Symptoms:
· Raynauds disease
· Fatigue
· Joint pains
· Fevers
· Joint swelling
· Manaise
House episode analysis
House Episode 1: Conditions and Treatments
1. Contact dermatitis
- Causes: Is a localized rash or irritation of the skin caused by contact with a foreign substance. Substances that cause contact dermatitis in many people include "poisonous" plants such as poison ivy, certain foods, some metals, cleaning solutions, detergents, cosmetics, perfumes, industrial chemicals, and latex rubber.
- Symptoms: red rash (most common), skin may blister, itchy skin.
2. Churg-strauss
- Cause: The cause of the syndrome is unknown, but it involves an abnormal over-activation of the immune system in a person with underlying bronchospastic lung disease (asthma).
- Symptomes: Churg-Strauss syndrome causes fever, weight loss, and sinus or nasal passage inflammation in the patient with asthma. Fatigue is common. Cough, shortness of breath, and chest pain can occur as the lungs are affected by vasculitis. Skin lumps, called nodules, can appear on the extremities. Diarrhea and pain in the belly occur due to blood vessel inflammation within the abdomen. The bladder and prostate gland can become inflamed.
Numbness or weakness of the extremities is the result of nerve injury from the vasculitis. If the brain is affected, seizures or confusion can occur.
3. Tachycardia
- Causes: Heart-related conditions such as high blood pressure (hypertension).Poor blood supply to the heart muscle due to coronary artery disease (atherosclerosis), heart valve disease, heart failure, heart muscle disease (cardiomyopathy), tumors, or infections. Other medical conditions such as thyroid disease, certain lung diseases, electrolyte imbalance, and alcohol or drug abuse.Emotional stress or drinking large amounts of alcoholic or caffeinated beverages.
- Symptoms: Shortness of breath ,dizziness, sudden weakness, fluttering in the chest, lightheadedness, fainting.
4. Epinephrine
- It causes quickening of the heart beat, strengthens the force of the heart's contraction, opens up the airways (bronchioles) in the lungs and has numerous other effects. The secretion of epinephrine by the adrenal is part of the fight-or-flight reaction. Adrenaline is a synonym of epinephrine.
5. Prednisone
- Prednisone is an oral, synthetic corticosteroid used for suppressing the immune system and inflammation. It has effects similar to other corticosteroids such as triamcinolone (Kenacort), methylprednisolone (Medrol), prednisolone (Prelone) and dexamethasone (Decadron). These synthetic corticosteroids mimic the action of cortisol (hydrocortisone), the naturally-occurring corticosteroid produced in the body by the adrenal glands. Corticosteroids are mostly used because of their strong anti-inflammatory effects, particularly in those conditions in which the immune system plays an important role. These include: arthritis, colitis, asthma, bronchitis, certain skin rashes, and allergic or inflammatory conditions of the nose and eyes. Prednisone is inactive in the body and, in order to be effective, first must be converted to prednisolone by enzymes in the liver.
Nuns Disease
There is no known cause for Churg-Strauss Syndrome. It is typically found in patients with a history with new-onset or newly-worsened asthma because it is believed that asthma medications, such as leukotriene modifiers may be setting off this syndrome. This theory is still not tested. The symptoms for Churg-Strauss Syndrome include fevers, weight loss and sinus inflamation in the patient with asthma. Asthma can worsen as the syndrome intensifies. Other syndromes, are eosinophilia. The third stage of the Syndrome is vasculitis.
Contact Dermatitis
The causes for contact dermatitis include poisonous plants, some foods, detergents, cosmetics, foods, and perfumes. Symptoms of this disease include a red rash, and iritability on the skin.
Mixed Connective Tissue Disease
Doctors dont have clear the causes for this disease because they dont know what causes autoimmune diseases. Symptons inculde Raynaud's diseases, fatigue, malaise, muscle pains, joint pains, fever, joint swelling, and swollen hands with puffy fingers.
Treatments:
Epinephrine is a hormone secreted in adrenal glands. Epi injections are for treating severe allergic reactions. What it does, is open airways for the lungs and narrows blood vessels, reverse low blood preassure, wheezing, and severe skin itching.
Dyphendramine is a antihistamine used for allergic reactions. Antihistamine compete with histamine to get to cell receptors. When antihistamine reach the cell receptors they dont stimulate them preventing itching, or mucus production. It is also used as a sedative because it causes drowsiness.
Conditions and Treatments
HI
House Episode 1 Sick Nunny
3 Conditions
Cardiac Arrest: the heart has an internal electrical system, which controls the rhythm of the beat. An arrhythmia causes an abnormal heartbeat. During and arrhythmia the heart can beat too fast, too slow, or stop beating like in the nun’s case. Without medical attention the person can die in a matter of minutes. People who receive CPR and defibrillation are more likely to survive from a Cardiac Arrest.
Cellulitis: is a bacterial infection in the deepest layer of the skin. The cells swell up; bacteria can enter a body through a break in the skin, a cut, scratch or bite. With cellulitis the deep skin tissue infected becomes red, hot, irritated and painful. Symptoms: skin redness or swelling in the infected area, tight, glossy look to skin, pain, skin rash, and fevers, chills or muscle aches. The treatment to cellulitis includes antibiotics.
Connective tissue disorders: connective tissue is the “cellular glue: that gives your tissues their shape and keeps them strong. The nun had scleroderma, which has no known cause. Scleroderma means hard skins, systemic scleroderma affects your blood vessels and internal organs and your skin.
2 Treatments
Hyperbaric Oxygen Therapy, as a treatment mode in which the patient is entirely enclosed in a pressure chamber breathing oxygen at a pressure greater than one atmosphere.
Diphenhydramine: is an antihistamine used for treating allergic reactions.
Diseases
Eosinophilia: the condition in which very high amounts of eosinophils, or a type of white blood cell, are found in the blood stream or gut lining. It can be caused by many factors, including: allergic diseases such as asthma and hay fever, lung diseases, vasculitis, some tumors, liver cirrhosis, and many others. Its symptoms are those of the condition it was caused by, although some rare symptoms can include weight loss, night sweats, lymph node enlargement, other skin rashes, and numbness and tingling due to nerve damage.
Systemic mastocytosis: a condition caused by the accumulation of mast cells in more than one part of the body. The reason why some people have so many mast cells is unknown. The symptoms are all different, depending on where the disease is located in the body. Some include rashes, diarrhea, trouble breathing, and low blood pressure.
Contact Dermatitis: an inflammation of the skin caused by direct contact with an irritating substance. It is caused by direct contact with acids, alkaline materials such as soaps and detergents, solvents, or other chemicals. Some symptoms include itching, skin redness or inflammation, tenderness, warmth of exposed area, skin lesions, and rash.
-------------------------------------------------------------------------------------
Prednisone: prevents the release of substances in the body that cause inflammation. It is used to treat many different conditions such as allergic disorders, skin conditions, ulcerative colitis, arthritis, lupus, psoriasis, or breathing disorders.
Hyperbaric oxygen therapy: involves the breathing of pure oxygen while in a sealed chamber that has been pressurized at 1-1/2 to 3 times normal atmospheric pressure.
Monday, September 19, 2011
The Chemical Ocean Acid Test
Friday, September 16, 2011
Chemical Beverage Signatures Allow Geographical Tracking of People By What They've Been Drinking
Is Water Vapor in the Stratosphere Slowing Global Warming
Author: David Biello
Journal: Scientific American
Date Published : January 29, 2010
Earth stratosphere is a cold, dry place above the troposphere. The only way that water gets into the high latitude above the Earth’s surface, is when it billows up from the humid tropics rising up to the tropopause. Since 2001 there has been less water in the stratosphere because of cooler temperatures in the tropopause and may be holding back global warming. The reason for water vapor temperature change is because the drop in temperature at the interference between troposphere and stratosphere. This effect can be in the variability of Earth’s climate or carbon dioxide and other greenhouses gases trapping more heat and warming the sea surface temperature. Methane’s growth rate has dropped which has made it a weaker source of stratospheric water. A drier lower stratosphere has slowed warming caused by thickening the greenhouses gas blanket.
This article is describing how the greenhouses gas, such as CO2, has dried the stratosphere causing global warming slowed. This is an example of discovery based science because the observations made by the scientists of the stratosphere and the troposphere made them conclude that the greenhouses gases are the cause of slowing global warming. This article is important to us because it informs us that thanks to the greenhouses gases, global warming has slowed, no longer making it a fast problem for our Earth environment.
Recyclable Water
Recyclable
Using the ocean as an inexhaustible water supply
The aticle is discovery based because the plant has not yet been tested (as of 2008). Expected results have not been proved to be effective (cost, safe efor marine life, etc.)
This is important for humans because water is one of the many resources on earth which is scarse, yet it is vital for all forms of life. Humans need to start finding effective alternatives to meet the demands of people. This is especially important to countries which are in dire need of water such as the Mddle Est, etc.
Patrick Huyghe, "Water, Water Everywhere, So Let's All Have a Drink", June 11, 2008, www.discovermagazine.com