Thursday, 7 April 2011

Vitamins To Maintain Immunity

Nutrition is directly related to immunity. Specific nutrients play particular role in immunity change. Here are some recommendations on taking vitamins and minerals which help to maintain immunity at any age.

Vitamin A

Vitamin A strengthens superficial layer of skin preventing fissure formation through which microbes may enter the body. This vitamin also prevents development of cancerous growths which is connected with stimulatory effects on white blood cells. However, overmuch vitamin A may be toxic for the body. It is better to get daily rate of vitamin A from food than from special drugs. It is recommended to consume 1000 micrograms of it daily For example, a half of new potato contains double daily rate of vitamin A. Also you may find vitamin A in liver, carrot, spinach, cauliflower, lettuce, apricots and watermelon.

Beta-carotene
Beta-carotene transforms into vitamin A in human body. This antloxidant helps to fight free radicals and intensifies capabilities of immune system to fight cancerous diseases. Just as vitamin A, beta-carotine may be found in carrot, spinach, cauliflower and lettuce. Unlike vitamin A, beta-carotene is not toxic and it may be taken as an supplement to foods. It is recommended to take 6 – 9 mg of beta-carotine daily.

Vitamin B6
When older people consume food with low rate of vitamin B6, their immunity becomes much weaker. Dose increase helps to restore immunity to a normal level. It is necessary to consume more than 1.5 mg of vitamin B6 daily.

In order to get 2 mg of vitamin B6 you should eat big bananas daily. Other sources of vitamin B6 are chicken meat, fish, liver, rice, avocado, walnuts, wheat and sunflower seeds. Large dozes (1000 – 2000 mg daily) of vitamin B6 may be toxic.

Vitamin C

Practically vitamin C provides great aid to each part of immune system. Vitamin C prevents viruses from multiplying, increases attacking drive of cells that fight cancerous diseases. Oranges, strawberries, cauliflower, paprika are perfect sources of vitamin C. Normally it is necessary to consume 500 – 1000 mg of vitamin C daily.

Vitamin D
Vitamin D is good for bones strengthening and that is its major function in the body, because immune system cells are developed in bone marrow. The recommended dose of vitamin D is 5 microgrames. One glass of pure milk contains approximately 10 ME, also it may be found in cheese. In human body vitamin D develops under action of sun rays. Ultraviolet accelerates development of vitamin D from a substance in the skin. In summer it is enough to spend 10 - 15 minutes in the sun to get necessary daily doze of vitamin D. Large dozes of vitamin D may be toxic, therefore, health care providers do not recommend it to take it in form of supplemental drugs.

Thursday, 24 March 2011

Keep Your Immune System Strong

A number of scientists claim that weak immune system is a result of natural aging process. Dr. Fillips says that it is enough just to change lifestyle to make immunity much stronger. “Eventually, the way we take care of our heath determines the way our immunity system takes care of us.” Here are the ways you may keep your immune system strong.

Eliminate Stress
From the earliest times scholars suspected stress to weaken immune system. At present time, there are many proves of this theory. An experiment was made. Four hundred volunteers used nose drops with virus of catarrhal disease, and group of 26 volunteers used placebo (i.e. drops without virus). Then in both groups was measured stress level in their blood and then they got new dozes of vaccine. As a result, in people with high stress level the probability to get diseased was two times higher than in those who had low stress level. In group of 26 people no one got diseased.

Scientists say that stress contributes to steroid hormones production in atrabiliary capsules which suppress activity of immune system. It is up to you to choose how to fight stress. You should begin with next activities: play with your children, pets, work in the garden, etc. Also you may meditate, practice yoga or read an interesting book.

Have Enough Sleep
“Sleep is a repair shop of immune system” - says Dr. Fillips. During sleep you rest with your body and mind but your immune system keeps working. It must guard your health but it requires less energy to strengthen defense mechanisms. Insufficient sleep has negative effects on your immune system. Scientists have stated that when people lose 3 or 4 hours of their sleep, their immune system activity reduces by 30%.  The conclusion is that you must sleep not less than 6 – 8 hours a day.

Quit Smoking
Tobacco smoke contains formaldehyde, a substance that paralyzes macrophages in lungs. This makes human more vulnerable to the diseases of upper respiratory tract including influenza. So you should give up smoking if you smoke.

Make Regular Exercises
Moderate physical activity prevents from microbes assembly in lungs and strengthens immune system which helps to accelerating of antibodies circulation in blood. In order to keep your immune system strong you should practice aerobics, walk, jog, swim or ride a bike 20 minutes a day.

Tuesday, 4 January 2011

ARVI Treatment

Patient with ARVI is treated at home. In case of fever it is recommended bed regimen, dairy and vegetative diet rich in vitamins, plenty of warm liquids (fruit drinks, tea with lemon).  Are prescribed symptomatic drugs: nasal vasomotorial drugs, mucolytics, anti-tussive medications, antihistamine drugs, ascorbic acid, polyvitamins.

In case of causal treatment (directed on fight with causative agent) within 48 hours from the onset of the disease it is necessary to start taking antiviral medications, for example, Tamiflu. In case of complications development and occasional temperature rise after its normalization, start using antibiotics (penicillins, aminopenicillins with beta-lactamase, cephalosporins).

For the specific prevention of influenza, vaccination  is recommended. It should be done before the epidemic rise. However, vaccination is useless in other ARVI cases which are registered all year round.

ARVI prevention:
- common health improvement
- body strengthening
- immunity promotion with exercises
- consumption of food rich in vitamins
Additionally, when pandemic, your doctor may advice you to take vegetative adaptogens and immunomodifiers.

Complications after ARVI
Past viral infection makes body more vulnerable to bacterial infection which results in bacterial complications especially in cases of late diagnostics and untimely ARVI treatment. Past ARVI frequently results in chronic pathology in respiratory ways such as bronchial asthma, sinusitis, tonsillitis, otitis.

Wednesday, 15 December 2010

Major Types Of ARVI

1) Influenza starts suddenly with severe intoxication, high temperature, photophobia, severe headache, body pain. By the end of first day appears dry cough. In most favorable course of the disease patient's common condition and temperature get normalized during five days.

2) Infection caused by parainfluenza virus starts gradually, with no intoxication, temperature never goes beyond 38C. Parainfluenza viruses mainly affect throat. The disease shows with symptoms of acute laryngitis (hoarseness of voice, dry cough).

3) Rhinovirus infection is characterized with nose hydrorrhea on the back of slightly frank symptoms of intoxication. Also patients suffer from tearing, frequent sneezing, no signs of affecting of trachea and bronchi. Temperature of the body is usually normal, in some cases it rises to 37-37,4°ะก.

4) Adenovirus infection is caused by viruses that affect not just epithelium of respiratory tract  but also lymphoid tissue. That is why besides symptoms of musous affection (nose hydrorrhea, unsymmetrical conjunctivitis, moderate cough on third day, fever on 8 – 12 day) are noticed increase of lymph glands, increased liver and spleen, abdomen pains. Despite high temperature, intoxication is not noticed.

5) Respiratory syncytial infection is characterized with affection of lower respiratory tract and has the same symptoms as bronchitis. Catarrhal syndrome is not significantly frank.

6) Coronaviral infection often affects upper respiratory tract. Clinical picture is similar to rhinovirus infection. Most frequently it affects children.

How to diagnose ARVI?
In order to make diagnosis it is necessary to make analysis of epidemical situation, symptoms, nature of cough, spit and nose mucus. To detect the agent it is necessary to make analysis that helps to detect viruses antigens due to immunofluorescence test.

Friday, 26 November 2010

ARVI (acute respiratory viral infection)

ARVI is an acute virus infection of respiratory tract that is characterized with high temperature (sometimes no temperature at all), intoxication symptoms, inflammation development. Inflammation may occur at any part of respiratory tract or at the whole respiratory tract (nose, paranasal sinuses, throat, trachea, bronchi). Also it may occur on conjunctiva.

Dramatic rise of the disease occurs in winter and in early spring. ARVI also occurs in autumn and some cases are registered all year round. Immunity after the diseases in past is strongly specific. It means that immunity is resistant to specific virus that causes ARVI. That is why one and the same adult may get diseased with ARVI up to 2 – 3 times a year and a child 6 – 8 times a year.


Agents of five virus groups cause ARVI. There are 300 viruses able to cause respiratory tract damage It is clear that each of them has its peculiarities. In summer and autumn the agents most frequently are agents of picornavirus group (rhinoviruses), in latest autumn and winter ARVI is caused by pneumotropic viruses (influenza)

Source of infection is diseased person with frank ARVI symptoms. Seldom source of infection are healthy virus carriers. Infection is transmitted via airborne. However, virus may be transmitted via contact with patient (handshake, kisses, objects). The immunity after carried virus infection usually remains resistant for a short period of time.


ARVI Symptoms


Any acute respiratory viral infection is manifested with next symptoms:
* acute onset of the disease
* body temperature increase
* symptoms of intoxication that are developed in first three days (headache, loss of appetite, weakness)
* appearing of catarrhal syndrome: stuffiness in nose, nasal discharge, sore throat, pharyngitis, tonsillitis, voice hoarseness, cough, eye conjunctiva.


Thursday, 11 November 2010

Herpes Zoster

Herpes zoster is a disease resulting from the activation of the virus that stayed in the human body after chicken pox carried earlier. The disease is characterized with fever, general intoxication, pains and vesiculation along sensorial nerves,


Causes

With herpes zoster are diseased people in nervous system of which remains chicken pox virus for life. The disease usually affects older people.

How virus is activated?

Lowered with age immunity or severe diseases may activate chicken pox virus and causes nerves inflammation where the virus lives. Via sensorial nerves virus spreads into skin and mucus membranes where inflammation develops.

Symptoms

The disease starts acutely with increase of body temperature and full-blown burning pains, inch in spots of future rash. Pains appear on spots of affected nerves (often intercostal) and has one-way belting character. Sometimes pains become intolerable, they do increase when touching the skin, movements, cooling. In 3 – 4 days skin on pain spots becomes red and there appear groups with rare bladders filled with transparent liquid which soon becomes turbid. With appearing of cutaneous eruption, pains usually become less intense, but every second patient suffers from these pains for a month. In 3 – 5 days bladders dry up and turn into crusts.

The total duration of the disease is 7 – 10 days. However, in people with significantly lowered immunuty the disease courses more severe and long.


When in process get involved cranial nerves, pains and rash may appear on facial skin, mucus membranes of eyes and nose, earflap or acoustic meatus.


Complications

Almost in 10% of patients with herpes zoster pains in affected area last for more than one month. In some patients pains return back after one year of recovery.

Recognition

The appearing of one-way vesiculation with pains along intercostal space helps to make the diagnosis.

Treatment

It is necessary to start herpes zoster treatment after first disease manifestations (first days of rash appearing). All patients (especially people younger 20 years) must examine in order to find the reasons for immunity lowering.

Preventive measures

Healthy lifestyle.

Friday, 22 October 2010

Ways Of Hepatitis Diagnostication

Q: When it is necessary to make examination after unprotected sex?

A: It is necessary to undergo polymerase chain reaction (PCR) in 10 days after having unprotected sex. Antibodies test will give information only in 1-3 months.


Q: Is it possible to get recovered more rapidly if PCR detected virus in blood immediately after infection?


A: Test will show if you are infected or not, and also will help your partner to vaccinate. However, for the treatment is not so important when diagnosis was made – in several days or weeks after infection. It was proved that treatment delay even for a few months never aggravates the result but it is virulent to delay treatment more than one year.


Frequently, doctors choose waiting game when they meet hepatitis B. Acute hepatitis B in adults without immune deficiencies in 95% cases ends up with autorecovery. And acute hepatitis C in 60-85% cases becomes chronic.

Q: How to know from test results whether treatment is needed or not?


A: Any type of hepatitis reqiures treatment if liver damage is significant. Biochemical test and biopsy, which detects fibrosis (when liver cells are replaced with connective tissue), will show it. In hepatitis B are taken into account viral loads – the more virus is in blood, the more probability is for the disease to progress.


When viral load is low and bioorganics indicators are normal, you may live in security and once a year undergo examination. Remember that in this period you may infect people around you via blood or sexual intercource that is why your relatives should vaccinate. The effectiveness of vaccination is 98%.


Q: What are the treatments for chronic hepatitis?


A: Hepatitis C may be treated with interferon alfa and ribavirin. Hepatitis B may be ctreated with interferon alfa or nucleoside analogues that are build into virus structure preventing it from reproduction. However, small persentage of patients get recovered from hepatitis B. Stopping virus reproduction helps to reduce significantly probability of complications.


Q: Are there any false-positive test results for hepatitis?


A: Yes, only in case of mistakes in the laboratory. In order to avoid such results, in good laboratories is made additionally check analysis.


Hepatitis Glossary

Antibodies are protective proteins which produce our immune cells in reply to contacting with virus antigenes.


Antigens are particles of the virus.


Viral hepatitis is hepatitis caused by a viral infection.


Hepatitis is an inflammation of the liver tissue.


Polymerase chain reaction (PCR) is a high-strung test which allows to detect in the blood genetic material of the virus (its DNA or RNA). PCR detects virus in blood in 10 days after infection.


Viral load is the amount of virus in 1 ml of blood.


Additional examinations

  1. Ultrasonic examination not detects hepatitis but at the stage of cirrhosis it shows first signs of changes. By the way, large liver mass is not a sign of hepatitis.
  2. Genotyping is an examination of virus for the choice of treatment strategy. Different genotypes of virus C are treated with different effectiveness. Detecting of genotypes of virus B has no impact on the treatment effectiveness.
  3. Liver biopsy detects the degree of inflammation. This is required when other analysis are not clear.