Posts Tagged ‘antibodies’

Antibiotics For Sinus Infections

Tuesday, February 9th, 2010

Antibiotics for Sinus Infections

Are there really effective antibiotics for sinus infections? Antibiotics are used for patients who are suffering from certain infections like that of the sinus. The medicine kills the bacteria inside the body which is responsible for the infection. Doctors dont prescribe antibiotics for viral influenza and common cold because it is ineffective for fighting viruses.

A healthy body can easily fight bacterial infections but this is not the case all the time. Some individuals are not that healthy and this means that their immune system is not working at its best, in short, the immune system is impaired. The white blood cells and the antibodies in some unhealthy individuals are not enough to fight the illness. The most commonly used antibiotics these days are penicillin, ,macrolides, cephalosporins, and flouroquinolones.

Antibiotics can be narrow-spectrum and broad-spectrum. In most cases, doctor prescribes the former kind of antibiotic because it is much cheaper but very effective in treating the bacterial infection. On the other hand, the latter often promotes antibiotic resistance and so it is given when badly needed.

Penicillin and macrolides are both narrow-spectrum antibiotics while the cephalosporins and flouroquinolones are noth broad-spectrum antibiotics.

Penicillin

Bacteria can easily reproduce, thereby multiplying at a fast rate especially when they have entered the hosts body. Penicillin can interfere with the building functions of the bacteria thereby stopping the infections. Amoxicillin is a very good example for treating sinus infections.

Macrolides

This antibiotic blocks or slows down the bacterias protein formation. This medicine does not eliminate the bacteria since its primary function is to curb the multiplication of the bacteria. By using the medicine, the immune system will be the one to eliminate the said bacteria. When this antibiotic is administered in large doses, it can also kill certain kinds of bacteria. Clarithromycin and erythromycin are very good examples of this kind of antibiotic. ENT specialists often prescribe clarithromycin for sinus infections.

Cephalosporins

This is already a broad-spectrum antibiotic and it works by inhibiting synthesis in the bacterias cell walls. Individuals who have a penicillin allergy are often given ceftibuten dehydrate which is a 3rd generation cephalosporins. Most ENT experts prescribe this antibiotic for those with penicillin allergic reactions.

Fluoroquinalones

Like the cephalosporins, this is another broad-spectrum antiobiotic and it is among the newest class. This antibiotic interferes with the bacterial DNA replication process. For sinus infections, Moxifloxacin is often given to patients.

Doctors cant just prescribe any antibiotic for the patient suffering from sinus infections. There are certain factors to consider like the cost of the medicine, the allergies of the individual, the possible side effects or serious reactions to the medicine, the illness severity and nature, and the rate at which the medicine is eliminated by the body.

Mild infections can be given narrow-spectrum antibiotics such as amoxicillin. Broad-spectrum antibiotics are given to patients with chronic sinus infections. Oftentimes, medical practitioners cant prescribe the same line of antibiotics because the effects vary from one individual to another. Having a personal doctor is an advantage because he or she is familiar with your medical history.

You cant use a certain antibiotic without the prescription of your doctor because it can only worsen your condition. Consult your doctor right away if youre having a sinus infection. That way, your current condition can be assessed thoroughly and a new line of medicines can be prescribed.

In Dire Need of Swine Flu Vaccine

Tuesday, November 24th, 2009

According to the World Health Organization, efforts for developing a swine flu vaccine has been ongoing since the first human case of the virus has been confirmed. Estimates place the initial doses of the vaccine will be administered in 5 to 6 months time.

While people diagnosed with H1N1 virus seems to be headed for recovery, there have been deaths recorded. Aside from that, receiving vaccines for this virus is important particularly the elderly and individuals with a weak immune system, since they are prone to complications such as pneumonia.

Likewise, the vaccine will serve as protection in case the condition persists particularly during the winter months which is the time when influenza is at its peak.

According to the World Health Organization (WHO), although they are still incomplete, current evidence shows that seasonal influenza vaccines will provide minimal or no protection against swine flu. Every year, a new batch of flu vaccine is developed and matched with strains that the WHO determines will most probably circulate in the winter months, which happens to be the peak season for influenza outbreaks.

Influenza virus comes in various strains which contains different proteins on their surfaces. The body’s immune system can only fight and destroy a virus if they are able to recognize these proteins. It is worth noting that antibodies that recognize one strain may not detect other strains.
Existing vaccines may only offer some protection against swine influenza if the proteins on its surface are identical to strains used to develop previous vaccines. According to the NIBSC, they are trying to determine if the swine flu virus, which is an H1N1 strain of type A influenza, as well as previous H1N1 vaccines match current vaccines.

The preparation of a vaccine commences after a virus develops as they provide the starting point for the production of the vaccine. As such, there is always a time delay while a vaccine is being developed. Preparation of a vaccine involves several steps so it would take several months before a vaccine becomes available.

According to WHO estimates, the virus needed for producing the vaccine will be accessible to vaccine manufacturers by the middle of May while the initial dose for a new vaccine would be ready within 5 to 6 months after that. Waiting time would be much longer if the growth of the vaccine proceeds rapidly.

Vaccination plays a crucial role in the prevention and reduction of the effects of serious conditions. Unfortunately, they are not entirely effective and could lose its effectiveness if the virus mutates.
Existing flu vaccines are valid for about one year and are 70% – 80% effective against transmission with strains of influenza virus that are identical to strains used in the production of vaccines.

The WHO believes that it is too early to tell how the A(H1N1) virus would change. It is closely monitoring any changes in the virus and this would help countries quickly react to any important changes that the virus may show.

Vaccines help the body combat certain diseases in case an individual becomes afflicted with the illness in the future. On the other hand, an antiviral drug is used on people who is already infected with a virus. Although they work in various ways, they generally work to prevent the virus from spreading to different cells in the body.

Swine flu vaccines are administered prior to exposure to a virus so they would be protected from that agent. Antivirals only work if administered within a certain period of time before or after they are exposed to the virus.

Food Allergies in Kids

Tuesday, May 19th, 2009

Food allergies are a common problem in kids. Nearly two million children have food allergies in the United States. Some food allergies are life threatening, even if the food is taken in very little quantity. Peanut tops the list of notorious foods which cause allergies. Following it are milk, especially cows milk, soy, eggs, wheat, seafood and other nuts.

Food allergies are caused when the immune system is confused. The job of the immune system is to protect the body from diseases, bacteria, viruses and germs. The antibodies produced by the immune system helps to fight these minute external organisms which makes the person sick. But if the body is allergic to certain food, the immune system mistakes the food to a harmful foreign substance and takes action towards it thinking that it is dangerous to the body. The body acts adversely, when it isnt supposed to do so.

When the immune system detects allergic substance, the antibodies produce mast cells. They are a kind of immune system cell which release a chemicals, such as histamine, in the bloodstream. These chemicals affect the respiratory system, digestive system, nose, eyes, throat, and skin. Initial symptoms are runny nose, tingling sensation in the lips or tongue, and itchy skin rash like hives. The reaction can be mild to severe and depends on every individual. The symptoms can appear right after the food is consumed or after few hours. Other symptoms are cough, wheezing, nausea, hoarse voice, vomiting, diarrhea, stomach ache, and throat tightness.

A sudden and harsh allergic reaction is known as anaphylaxis. The patient encounters many problems, all at once which involve blood vessels, the heart, digestion, breathing, and skin. The blood pressure drops very steeply, the tongue swells and there is swelling in the breathing tubes. Patients who have such allergic reactions should be ready to handle emergencies. They should always carry some type of medicine which will help to combat or reduce the adverse affect of the food.

Most of the times, it is very easy to detect the cause of food allergy. Problems such as hives begin to surface as soon as the child eats the substance he is allergic to. At other times, it becomes very difficult to determine the cause of allergy. In such cases, everything should be observed under close surveillance. Food items which are made out of many ingredients should be thoroughly checked for the allergic cause. Most of the times, allergies are inherited from other family members or other kids born with food allergies. Changes in the surroundings and the body play a major role in these kinds of cases. Some of the kids arent actually allergic to the food and show only mild reaction. Like people who are lactose intolerant suffer from diarrhea and belly pain after consuming milk and diary products. This is not an indication that the child is allergic to milk. This reaction happens because their body is incapable of breaking down the sugars which are found in diary products and milk.

If the conditions are severe, a doctor should be consulted immediately. If food allergy is diagnosed, the doctor refers to an allergy specialist. The doctor asks questions like eating patterns, past allergic reactions and the time period between the consumption of food and the surfacing of the symptoms. The specialist can also ask about allergy related conditions like asthma or eczema and whether allergic reactions are hereditary. Usually skin test and blood test is done to test the antibodies and the reaction they have on the skin when it is exposed to the allergic substance.

Kids who are allergic to egg and milk outgrow them as the age progresses. But allergies which are severe and are related to items such as peanut, shrimps, and some kind of fish, last for a lifetime. Other than food, children can be allergic to certain medicines and flower pollen. The best way to avoid allergies is to avoid the cause of it. No specific medicine has been developed for the cure of allergies.

PPPPP

Word Count 676