Wednesday, September 12, 2007

Cancer And Exercise

Cancer. It's perhaps the most frightening word in the English language. Although our medical system has made tremendous advances in the last few decades the grand prize of them all, the holy grail of medical science - a cancer cure - continues to elude researchers.

A cancer diagnosis is serious business. This disease claims over a half million lives each year in the United States alone. Cancer, in its many forms, has the ability to threaten each and every one of us no matter what our age.

Most Common Cancers:

The four most common types of cancer are prostate cancer, breast cancer, lung cancer and colorectal cancer. Although cancer death rates have been slowly declining for years, the death rate for prostate cancer remains 28.0 per 100,000. The death rate for breast cancer is 25.4 per 100,000. Colorectal cancer has the lowest death rate of the top four cancers, coming in at 19.6 per 100,000. The highest death rate is attributed to lung cancer at 54.8 per 100,000 (Source: Randolph E. Schmid; Associated Press).

Although researchers haven't yet discovered a fail-proof cancer treatment, early detection can greatly improve the odds of survival. Screening tests that can find the first sign of cancer are becoming more popular. "As of 2003,69.7 percent of women over 40 had a mammogram in the last two years, up from just 29 percent in 1987... .. 79.2 percent had a pap test for cervical cancer" (Source: Randolph E. Schmid; Associated Press).

How To Lower The Risk Of Most Cancers:

There is no cancer center or alternative cancer treatment that can promise a cure. However, it's important to note that we do have the power to raise or lower our cancer risk. In fact, the choices we make in everyday life have a surprisingly large impact on our chances of contracting cancer. "Evidence suggests that one third of the 550,000 cancer deaths that occur in the United States each year are due to unhealthy diet and insufficient physical activity" (Source: Dr. Tim Byers and Colleen Doyle, MS, RD of the American Cancer Society).

Experts, such as those at the American Cancer Society, point to several behavior modifications that can be made to lower the risk of cancer. For example, wearing sun-block and minimizing exposure to the sun can lower the risk of skin cancer. Reducing or stopping smoking altogether will lower the risk of many types of cancer, including mouth cancer and throat cancer. Other lifestyle changes that may lower cancer risk include limiting the consumption of alcohol and high-fat foods.

Although rarely mentioned in the major media, scientists are now realizing that perhaps the biggest cause of cancer in our society today is lack of exercise. As a matter of fact, it's no understatement to say that the best cancer insurance you can purchase today is to invest in a gym membership.

"For the majority of Americans who do not smoke, eating a healthful diet and being physically active are the most important ways to reduce cancer risk" (Source: Dr. Tim Byers and Colleen Doyle, MS, RD of the American Cancer Society). Regular exercise helps you maintain a healthy weight, which is important for cancer prevention. Overweight or obese individuals have a higher risk of several cancers, including breast and colon cancer, esophageal cancer, and kidney cancers.

"Being overweight works in a variety of ways to increase cancer risk. These include mechanical ways in which abdominal obesity leads to acid reflux into the esophagus, and hormonal ways, in which obesity increases circulating levels of hormones such as estrogen and insulin that can stimulate cancer growth. Achieving an ideal weight need not be the first goal, though, as substantial benefits can come from first stopping weight gain, then beginning to achieve a modest amount of weight loss." (Source: Dr. Tim Byers and Colleen Doyle, MS, RD of the American Cancer Society). The single best way to obtain weight loss and normalize hormonal balance is through regular exercise.

The Calle Study:

Researcher Eugenia Calle, PhD, in a study published in Thursday's New England Journal of Medicine (Vol. 348, No. 17: 1625-1638), found that overweight and obesity may account for 20% of all cancer deaths in US women and 14% in US men. That means 90,000 cancer deaths could be prevented each year if Americans could only maintain a normal, healthy body weight.

According to the research done by Calle and her colleagues, the heaviest men in the study had death rates from all cancers combined that were 52% higher than the rates among normal-weight men. The heaviest women had cancer death rates 62% higher than normal-weight women.

Adding to the conclusions of previous studies, Calle found that being overweight or obese was linked to uterus cancer, kidney cancer, esophagus cancer, rectal cancer, and cancers of the gallbladder, colon, and breast (in postmenopausal women).

Because obesity increases a woman's risk of developing the disease in the first place, and her risk of dying from it once she has it, the effects on breast cancer are compounded, Calle said,

The researchers also found that many types of cancer that were not previously linked to obesity were indeed impacted by excess body weight. Those included cervical cancer, ovarian cancer, pancreatic cancer, liver cancer, stomach cancer (in men), prostate cancer and non-Hodgkin lymphoma and multiple myeloma.

"Overweight and obesity has a very broad impact on cancer across most cancer sites," Calle said. "That's not something that's really in the consciousness of the American people." In fact, in an American Cancer Society survey conducted in 2002, just 1% of Americans identified maintaining a healthy weight as a way to reduce cancer risk.

Additional Studies Reinforce The Cancer/Exercise Link:

Besides the Calle research, there are multiple studies proving a link between regular exercise and a lower risk of cancer.

"A longitudinal study of Harvard alumni found that highly active or even moderately active individuals had a substantially lower risk of developing both colon and lung cancer than alumni who were less active or sedentary" (Source: Cedric X. Bryant, Ph. D., ACE's Chief Exercise Physiologist).

"Heart disease and diabetes get all the attention, but expanding waistlines increase the risk for at least nine types of cancer, too. And with the obesity epidemic showing no signs of waning, specialists say they need to better understand how fat cells fuels cancer growth so they might fight back. What's already clear: Being overweight can make it harder to spot tumors early, catch recurrences, determine the best chemotherapy dose, even fit into radiation machines. That in turn hurts chances of survival. One major study last year estimated that excess weight may account for 14 percent to 20 percent of all cancer deaths -- 90,000 a year." (Source: LAURAN NEERGAARD, AP Medical Writer; Mon Aug 23,9:09 PM ET).

The Bottom Line:

The most important behavior we can adopt to minimize our risk of cancer is to stay active and maintain a healthy weight through regular exercise. Adults should exercise at least thirty minutes each day, but with exercise more is better. Diet is important, too. The American Cancer Society recommends eating five or more servings of fruit and vegetables every day, choosing whole grains over processed grains, and limiting red meat. Of course, alcohol consumption and smoking should also be curtailed to lower the risk of most cancers.

Cancer research continues, and new cancer drugs are being developed even now. Here in the United States we are extremely fortunate to have some of the finest cancer treatment centers in the world. But we still do not have a cancer cure. Until we do, protect yourself by exercising regularly and eating a healthy low-fat diet full of vegetables.

Article Source: Health Guidance
Tracie Johanson

The Dangers of Deep Vein Thrombosis

A deep vein thrombosis is a blood clot developing in a deep vein, usually in the leg. They also can occur in other parts of the body. Blood clots in the veins in the thigh are usually more serious than blood clots that happen in veins in your lower leg. A DVT causes pain, and possible complications if it reaches the lungs. If a clot in a vein breaks off and travels through your bloodstream, it can lodge in your lung. This is called a pulmonary embolism which is a very serious condition that can cause death.

DVTs are known to occur in about 1 out of 1000 people in the general population from all causes. DVTs are more common in obese people and those aged over 40. Causes include long-distance air travel and long journeys by car, train or coach, because of prolonged immobility.

Symptoms of Deep vein thrombosis include: Swelling of the leg; Pain or tenderness in the leg-the pain is usually in one leg and may only be present when standing or walking; Feeling of increased warmth in the area of the leg that is swollen or that hurts; Red or discolored skin.

The main goals in treating deep vein thrombosis are to: Stop the clot from getting bigger; Prevent the clot from breaking off in your vein and moving to your lungs; Reduce your chance of having another blood clot.

Exercising the legs once an hour can reduce risk. Take regular breaks if driving, or walk up and down the coach, train or plane aisle.

Lower leg muscles can be exercised while sitting by pulling the toes towards the knees then relaxing, or by pressing the balls of the feet down while raising the heels.

Other preventative measures include: Avoid sleeping pills. These cause immobility, increasing the risk of DVT; Wear loose clothing; Keep legs uncrossed; Keep hydrated by drinking; Avoid alcohol to prevent dehydration; Wear graduated compression stockings or socks – particularly important for travelers with other DVT risk factors. Compression stockings are worn on the legs from the arch of the foot to just above or below the knee. These stockings are tight at the ankle and become looser as they go up the leg. This causes a gentle compression (or pressure) up your leg. They have some side effects: They can be uncomfortable when worn all day They can be hot They may be difficult to put on, especially for older adults and overweight people.

Some doctors recommend aspirin because of its blood thinning effects. This is unsuitable for children and can have side effects, so seek professional advice.

Article Source: Health Guidance
Anne Wolski

Tips to Improve Your Asthma

1. Practice breathing from the diaphragm or abdomen instead of the chest. When you are breathing correctly the belly will push outward on breathing in, and contract or tighten when breathing out. The chest and shoulders do not rise up.

2. If you do start wheezing or getting short of breath try to breath slower while relaxing the rest of your body. This reduces the demand for oxygen in the body. If you are exercising slow down or stop.

3. Stop smoking or hanging out in smoky rooms whenever possible. If you live with a smoker who won’t quit or go outside to smoke then encourage the use of an air-filter or devise that sucks up the smoke. Don’t underestimate the dangers of second hand smoke, particularly on children and the elderly.

4. Try swimming as the exercise of choice. The increased moisture seems to lessen the chance of spasm of the bronchial tubes. Starting slowly with walking or a stationary bike can also safely improve cardiovascular stamina.

5. Drink extra glasses of water or liquids. With more rapid breathing it is easier to get dehydrated. Some regular tea is ok as it has a chemical to relax the bronchial tubes called Theo bromide, similar to the asthma medicine theophylline.

6. If you are using a rescue inhaler such as Albuterol more than three times a week you may need a preventive medicine either as another inhaler and/or a pill such as Singulair. Keep ahead of your asthma. At the first sign of worsening, use your medications early. In the end you will require less medicine overall. Make sure you tell your doctor if your symptoms become more frequent. In short, DON’T WAIT.

7. Often people with asthma also have allergies to pollen, animals, and dust. Discuss with your doctor getting allergy testing to see if desensitization shots will cure the problem. Be sure to mention stuffy nose and itchy, watery eyes “sinus problems” during your visit if they occur.

Article Source: Health Guidance
Katherine Martin

Asthma Natural Remedies With No Side Effects

Asthma Natural Remedies With No Side Effects

There are many causes of asthma and each person can have different asthma attack triggers. So, each person may need to use a different medical approach and different asthma natural remedies.

Using drugs to control your asthma makes sense when you first discover that you have asthma provided your asthma is well established or life threatening. Once you have your prescriptions and your doctor's instructions, you should consider looking at or experimenting with natural remedies to control or even eliminate your asthma, since drugs are not a cure.

No matter what type of drug or inhaler you are using, they all have their side effects. The longer you use drugs or an inhaler, the less effective they become and most likely you will see side effects.

You should use asthma natural remedies when you are having an asthma attack or when asthma is under control. There are four areas you need to concentrate on when examining asthma natural remedies.

  1. Reduce mucus
  2. Reduce inflammation
  3. Reduce emotional and stressful situation
  4. Improve immune system

Reduce Mucus

By using various herbs you can control and remove mucus from your bronchioles. Test various herbs or herbal combinations to determine which work best for you.

Drink carrot and celery juice and drink plenty of water daily to help dilute and move mucus out of your body.

Reduce Inflammation

There are quite a few different nutrients that can help you reduce inflammation. You should consider using more than one at a time. Start with these and then experiment with the others.

  • Add omega-3 to your diet by using flax seed oil or fish oil
  • Use MSM supplements
  • Take vitamin C supplement
  • Systemic enzymes, try Vitalzyme
  • Digestive enzymes

Reduce Emotional and Stressful Situation

Reducing stress in your life is a difficult area to deal with since some situations in your life are strongly anchored, like your job, your family, your friends, or marital situation. But if these areas are causing your stress and you frequently have asthma attacks, then you have to decide which is more important for you, your job or your health.

If your job is deteriorating your health, then start looking for a way out. This may require you to look for another job or to go back to school to get training for something you might like to do. Just take action and start changing your life.

Improve Immune System

Improving your immune system is accomplished through diet, through taking nutritional supplements, by reducing stress, and eliminating those conditions that overwork you body.

The fewer things your immune system has to react to and get under control, the stronger it is to take care of an asthma attack when it occurs. When your immune system has to deal with toxins in your colon and throughout your body, then it is weakened and not able to neutralize pollen or pollution you inhale from the air which can trigger an asthma attack.

Use drugs when you first discover you have asthma can make sense. But, if your asthma is light, then finding asthma natural remedies to control it, instead of using drugs, also makes a lot of sense.

Article Source: Health Guidance
Rudy Silva

Winning The Battle Against Allergy

Winning The Battle Against Allergy

Whether it's dust, pollens, or different kinds of food, many Americans today are susceptible to having an allergy. An allergy is a reaction of the immune system to certain types of substances, which are called allergens.

When the person with an allergy, for example animal dander, comes in contact with the allergen, his body will experience different types of reaction. Depending on the type of allergy, the person can experience rashes, difficulty in breathing, sneezing, runny nose, watery eyes or involuntary bowel movement. In the most extreme cases of allergy attacks, the person can suffer an anaphylactic shock and can cause death.

What are the symptoms of an allergy?

Allergy attacks vary in symptom and degree.

Mild allergy symptoms can usually be seen on a specific area and do not spread on different parts of the body. This is indicated by a rash, itchiness, watery eyes, uncontrollable sneezing, or swelling in the affected area.

Moderate symptoms include allergic reactions that spread to the entire body. This is manifested by itchiness, numbness, involuntary bowel movement or difficulty in breathing.

A severe allergic reaction is called anaphylaxis. It is a dangerous emergency state where the body's reaction to the allergen is fast, sudden and does not hit only one area of the body. This allergic symptom can begin with a persistent itching followed by abdominal pains, vomiting and hives. Dizziness or confusion may also be a symptom because anaphylaxis causes a sudden drop in the person's blood pressure.

These allergy symptoms can appear in different parts of the body:

  • Eyes - redness, itchiness and watery eyes.
  • Nose - swelling of the mucous membrane resulting in a runny nose and sneezing.
  • Lungs - constriction, wheezing and difficulty in breathing, which is sometimes signs of asthma.
  • Ears - swelling, a slight pain and even temporary impairment or hearing loss.
  • Skin - itchiness, reddening and swelling of affected area.

Treatment

There are treatments for a person's allergy, depending on the type of allergen he or she may be susceptible to. For an airborne allergen like pollen, animal dander, mold, dust mite feces and fur from cats or dogs, medicines like a nasal spray, decongestants or antihistamines can be sufficient to give immediate relief from the symptoms. Eye drops can also be used if the redness and itchiness becomes too much.

For an ingested allergen like an allergy to certain types of food, the best treatment is to avoid the food altogether. Food allergy can cause wheezing, hives, runny nose, swelling of the mouth area and sometimes, difficulty in breathing. For the rashes, a skin cream can applied to make it feel better. Antihistamines also reduce the other symptoms.

There are people with allergies to certain types of drugs and insect bites. Usually, they get their treatments through an injection of epinephrine (adrenaline) administered by a doctor. This will immediately reverse the allergy symptoms and save the person.

Most of the allergy medicines can be bought over-the-counter at the local drugstore. But before you get one, make sure that a doctor properly diagnosed the person with the allergy. A wrong treatment can kill a person.

Prevention

Can an allergy be prevented? Sadly no. One cannot prevent an allergy attack but they can treat it by getting the right medicines. The person with an allergic reaction must also look at their environment and make the proper changes to reduce the symptoms in their body.

One can only win the battle against allergies but making a positive action. Do not fall victim to these allergens.

Article Source: Health Guidance
Charlene J. Nuble

Tuesday, September 11, 2007

CDC Recommends HIV Tests, Puts Less Stress on Condom Use

CDC Recommends HIV Tests, Puts Less Stress on Condom Use

In a significant shift in strategy in the fight against HIV/AIDS, the Centers for Disease Control recently recommended that tests for HIV be extended to all patients entering hospitals and clinics in the U.S. The CDC also recommended that doctors begin offering routine voluntary HIV tests to patients between 13 and 64.

It is estimated that of the more than 1 million people in the U.S. with HIV and AIDS, about 25% are unaware they have HIV. The new strategy is aimed at discovering these cases before HIV develops into AIDS. It is also hoped these measures will curb the spread of the disease since these 250,000 people are carriers who unknowingly infect others.

This marks a departure from the previously followed strategy of testing only people in high risk categories.

This policy change will also involve a shift away from the promotion of abstinence and condom use to prevent the spread of the disease, towards more emphasis being placed on testing for HIV status and early treatment.

According to a spokesperson for the CDC, what explains this change in policy is that drugs now exist that can prevent the development of AIDS from HIV. Early detection can therefore result in early treatment. In the past early detection did not necessarily mean much since there was very little that could be done for someone infected with HIV.

It is also hoped that early detection will result in less transmission of the disease. A recent CDC survey found that sexually-active adults altered their sexual behavior patterns after they were diagnosed with HIV. They were less likely to engage in unprotected sexual activity, in many cases opting for a condom or for not engaging in sex at all.

Drug companies and makers of oral tests stand to benefit significantly from this change of emphasis. It is expected that tests which are now administered at hospitals and clinics will soon be available over the counter. People interested in testing themselves will be able to do it at home. This should result in a significant increase in sales of HIV testing kits.

There should also be a rise in HIV treatment drugs as hundreds of thousands of people learn they have HIV and begin treatment with anti-HIV drugs. Currently anti-HIV drugs account for about $6-billion in sales in the U.S. That number should increase dramatically if the new testing procedures prove to be effective.

Some argue that as in so many areas within the health industry, efforts aimed at prevention will be replaced by promises of a quick cure brought to us compliments of the incredibly influential and increasingly invasive drug companies.

Article Source: Health Guidance
Rick Hendershot

What are AIDS and HIV?

What are AIDS and HIV?

AIDS stands for acquired immunodeficiency syndrome, a condition first reported in the United States in 1981, that has since become a major worldwide epidemic.

AIDS is caused by HIV (human immunodeficiency virus). By killing or damaging cells of the body's immune system, HIV progressively destroys the body's ability to fight infections and certain cancers. The term AIDS applies to the most advanced stages of HIV infection.

How is HIV spread?

There are several common ways that HIV can be passed from person to person, including:

  • Having unprotected sex with someone who is infected
  • Using needles or syringes that have been used by people who are infected
  • Receiving infected blood products or transplanted organs (Since 1985, the United States actively tests all donated blood for HIV; therefore, the risk of getting HIV in this way in the United States is now extremely low.)
  • Transmission from mother to child – An infected mother may pass the virus to her developing fetus during pregnancy, during birth, or through breastfeeding.

If you have a sexually transmitted disease, you may be at higher risk for getting infected with HIV during sex with an HIV-infected partner.

There is no evidence that HIV is spread by contact with saliva or through casual contact, such as shaking hands or hugging, or the sharing of food utensils, towels and bedding, swimming pools, telephones, or toilet seats. HIV is not spread by biting insects such as mosquitoes or bedbugs.

What is the treatment for HIV/AIDS?

Although when AIDS first appeared there were few treatments, researchers have now developed drugs that can help fight both HIV and the related infections and cancers that come with it. Treatment advances have improved the survival rates and decreased progression of HIV disease in developed countries like the United States, where antiretroviral drugs are available.

Additional treatment information is available from the National Institute of Allergy and Infection Diseases at NIH. The NIH is currently conducting many clinical trials related to HIV/AIDS to test treatments and therapies. These trials are sponsored and co-sponsored by various Institutes, including the NICHD.

The NICHD supports and conducts research related to HIV/AIDS in specific groups of people, including pregnant and non-pregnant women, infants and children, and adolescents and young adults. The information below applies to those groups.

How does HIV/AIDS affect women?

According to the Joint United Nations Programme on HIV/AIDS (UNAIDS), 19.2 million women are living with HIV/AIDS throughout the world. In many countries, the rate of HIV infection in women is rising faster than in any other group.

Worldwide, more than 80 percent of HIV infections are spread by heterosexual sex (vaginal intercourse); women are particularly at risk of contracting HIV through this type of contact. HIV is increasing most dramatically among African American and Hispanic women.

Although most of the signs and symptoms of HIV infection are similar in men and women, some are more specific to females. For example:

  • Vaginal yeast infections may be chronic, more severe, and difficult to treat in women with HIV infection than in women who are uninfected.
  • Pelvic inflammatory disease, an infection of the female reproductive organs, may also be more frequent and severe in women with HIV infection.
  • Human papillomavirus (HPV) infections, which cause genital warts, may occur more frequently in HIV-infected women, and can lead to pre-cancerous lesions of the cervix or cancer of the cervix.

The NICHD, along with other Institutes, supports studies to determine what aspects of HIV are specific to women and the best treatments for these symptoms.

How does HIV affect pregnant women and infants?

Women can give HIV to their babies during pregnancy, while giving birth, or through breastfeeding.

But, there are effective ways to prevent the spread of mother-to-infant transmission of HIV:

  • Taking anti-HIV drugs during pregnancy—either a drug called zidovudine or AZT alone or in combination with other drugs called highly active antiretroviral therapy (HAART)—a mother can significantly reduce the chances that her baby will get infected with HIV.
  • Delivering the baby by cesarean section, and doing so before the mother’s uterine membranes rupture naturally, reduces transmission that may occur during the birth process. Use of anti-HIV drugs during pregnancy and delivery, combined with a cesarean section in women with certain levels of HIV in their blood, can reduce the chance that the baby will be infected to less than 2 percent.
  • Avoidance of breastfeeding by an HIV-infected mother. HIV can be spread to babies through the breast milk of mothers infected with the virus. The American Academy of Pediatrics recommends that, in countries such as the United States, where infant formula is safe and is often available and affordable, HIV-infected women feed their infants commercially available formula instead of breastfeeding.

Approximately one-fourth to one-half of all untreated pregnant women infected with HIV will pass the infection to their babies. HIV infection of newborns is very rare in the United States because women are tested for HIV during pregnancy, and women with HIV infection receive anti-HIV drugs during pregnancy, cesarean delivery if their HIV blood levels are high, and are advised not to breastfeed their infants.

How does HIV affect children and adolescents?

It is estimated that approximately 10,000 children are living with HIV infection in the United States. In the United States, the number of infants born with HIV infection has dramatically decreased from about 2,000 a year to fewer than 200 a year due to identification of HIV infection in pregnant women and use of anti-HIV drugs during pregnancy, cesarean delivery, and avoidance of breastfeeding.

In contrast to the United States, mother-to-child transmission in developing countries remains a major problem; about 700,000 infants are newly infected with HIV each year because most women are not screened for HIV during pregnancy, anti-HIV drugs are not available, and safe alternatives to breastfeeding are not available.

Prior to 1985, when screening of the nation's blood supply for HIV began, some children as well as adults were infected through transfusions with blood or blood products contaminated with HIV, but this is now rare in the United States.

In contrast to the dramatic decrease in mother-to-child transmission of HIV infection, the number of cases of HIV infection in adolescents and young adults continues to increase in the United States. About one-third to one-half of new HIV infections in the United States are among adolescents and young adults.

Most HIV-infected adolescents and young adults are exposed to the virus through unprotected sex; some teens and young adults are also infected through injection drug use. In addition, an increasing number of children who were infected as infants are now surviving to adolescence.

Institute of Child Health and Human Development




Drugs For Treating Aids May Prevent People From Catching Aids

Drugs For Treating Aids May Prevent People From Catching Aids

In one of the most promising developments in more than 20 years, scientists claim that drugs used to control HIV/AIDS in patients may also be effective in preventing the disease in the first place.

The drugs in question are tenofovir (Viread) and emtricitabine, or FTC (Emtriva), sold in combination as Truvada by Gilead Sciences Inc. Gilead is the California company best known for inventing Tamiflu.

Previous research has been aimed at finding a vaccine against HIV/AIDS, with the intention of conditioning the immune system against the disease. But these drugs work differently. They simply keep the virus from reproducing, and have already been used successfuly by health care workers to prevent them from being infected by the virus carried by patients.

This approach to fighting HIV/AIDS has been tempting researchers for many years, but has only recently become feasible as preventative drugs have been developed that are safe for non-infected persons to take. Previous drugs had unreasonable effects for uninfected persons.

That situation changed when Tenofovir came on the market in 2001. Tenofovir is powerful and safe, and it only has to be taken once a day. It also does not interact with other medicines or birth control pills, and manifests less drug resistance than other AIDS medications.

Monkey studies show exciting results

A major study by the CDC (Centers for Disease Control and Prevention) in Atlanta, Georgia involved six macaques. The monkeys were given a combination of Tenofovir and FTC and then administered a deadly combination of monkey and human AIDS viruses. They were given the viruses in rectal doses to simulate contact between gay men.

Each was given 14 weekly exposures of the virus, and none of the monkeys became infected. In a control group which did not receive the drugs, all but one got the disease, normally after just two exposures.

The scientists then stopped giving the drugs to the test group to see if the prevention was only temporary. The results were equally impressive. None of the monkeys contracted the disease. "We're now four months following the animals with no drug, no virus. They're uninfected and healthy," reported a CDC researcher.

Now other research teams are pushing to have this drug combination tested on humans. A $29 million CDC study of drug users in Botswana will now be switched to this new drug combination.

Another study of 400 heterosexual women in Ghana by the Family Health Initiative, and funded by the Bill and Melinda Gates Foundation, is studying the effects of tenofovir alone.

But several other studies have failed to materialize because studies of this nature immediately raise suspicions that scientists are using local people as guinea pigs. The fear is that they will intentionally expose the test subjects to the virus.

The cost of tenofovir and Truvada also make testing difficult. In African countries condoms are now liberally donated by companies, aid groups, UN agencies, and western governments. While the drugs are relatively cheap, the cost remains an impediment.

Nevertheless researchers have been reinvigorated by the stunning results out of Atlanta, and new tests are going ahead in pockets of interest around the world.

Article Source: Health Guidance
Rick Hendershot

Tips for Dealing with Pet Allergies

Tips for Dealing with Pet Allergies

It will seem horribly unfair to any child who suffers with allergies that they cannot have a pet or must loose one whom they have grown attached to. Is there a way to deal with pet allergies which may lessen or even eliminate the suffering for adults and children with allergies?

WHAT ARE YOU ALLERGIC TO?

By establishing whether the animal is actually the cause of an allergy is certainly the best starting point. However, that can be a difficult task if you already have an animal since the allergens are extremely difficult to remove entirely.

If an existing pet can be removed and the home thoroughly cleaned (carpets, walls, furniture etc.) you MAY be able to verify the allergy in several months. Obviously that is not the easiest solution.

Having the child stay with a friend or relative for a week (as long as there are no pets in the home) may show an improvement that might indicate an allergy to the family pet.

A visit to the doctor can confirm an allergy with a simple test. The tests vary, but some can be mildly uncomfortable and would probably not be considered if the allergy symptoms were mild.

Some allergy symptoms are compounded by exposure to several allergens. By identifying other sources and removing them you may find the reaction to pets is lessened and not a barrier to enjoying their presence.

CREATING AN ALLERGY FRIENDLY HOME

There are several steps you can take to reduce the build up of allergens and bring relief to allergy sufferers.

The first recommendation is to have hardwood or other smooth surface for your flooring. Carpets hold far more of the particles that cause allergies and hard flooring makes it easy to clean.

Leather furniture is also ideal for homes with pet allergies. For the same reason as hard flooring is more suitable than carpet, leather holds far less allergens than fabric.

Keep a seat for the allergy sufferer that pets are not allowed to sit on. Also be certain that animals do not sleep on the beds or enter the bedrooms of allergy sufferers. Consider keeping the sleeping area of the home as a pet-free zone.

MAKING YOUR PET AS HYPO-ALLERGENIC AS POSSIBLE

There are even things you can do with your pet to reduce the allergic effects of having them in your home.

Frequent grooming and bathing with a mild soap to prevent over drying will reduce the dander that is one of the main causes of pet allergies. It would be recommended that someone without allergies take on this task.

Washing hands after playing with a pet and avoiding touching your face with unwashed hands will also help. Since some individuals are also allergic to the saliva of pets it would be sensible to not allow your pet to lick you.

In the case of more serious allergies or asthma it may be best that no pet share the home. For older children or adults it may be possible to find a medication or treatment which makes the situation tolerable if they prefer to keep the pet despite the allergy.

Article Source: Health Guidance
Nicky Pilkington

How to Prevent or Alleviate Allergy

How to Prevent or Alleviate Allergy

To prevent allergy, you should ideally begin with the childhood.

By allergy the immune system react against a substance that it is not supposed to react against, and the reaction is often exaggerated. Objects containing substances that commonly cause allergy are domestic dust, animal hair, household chemicals, chlorine, microorganisms, pollen, nuts, citrus fruits and seafood. Also bacteria and parasites can cause inappropriately strong immune reactions.

THE MECHANISMS OF ALLERGY

The total set of reactions occurring by allergy is very complicated. Many of these are the same as by normal immune reaction, even though they occur when they should not take place, Here are listed some of these reactions:

By exposure to a new substance, cells in the immune system learn to recognize that substance (allergen), and it learns to produce anti-bodies towards the substance, and a certain amount of antibodies is produced. The type of anti-bodies called IgE is the most important by allergic reactions.

IgE will glue itself to some cells in the blood called mast-cells, and stick out from the surface of these cells. By following exposures to antigens, these will attach themselves to the IgE-ends sticking out from the mast-cells. This will trigger the mast-cells to produce histamine and other signal substances. These signal substances will then spread through the surrounding tissues.

The signal substances will then trigger the walls of small blood vessels to leak fluid into the tissues and accumulate in the tissues. This will cause tissue swelling. They also will cause blood vessels to widen and thus increase the blood stream in the tissues. The consequence of this will be swelling and redness in the affected body parts. The signal substances will also make glands in the tissue produce more mucus, making symptoms like running nose and tight throat.

The new exposures to the antigens will also provoke even more anti-body production. The antibodies will also glue allergens together to bigger complexes. These complexes can clog small blood vessels and in other ways disturb the function of the affected organ.

The allergen-antibody-complexes are then recognized by the cells and other mechanisms that the body uses to collect and eliminate garbage. Eater-cells gather and engulf the complexes.

The immune system also will make enzymes that attack the antigens to break them down. Also this production is stimulated when antigens attach themselves to anti-bodies at cell surfaces. But these enzymes are not entirely specific, and can also to some extend break down components of the body’s own tissue, causing harm and disease symptoms.

WHAT CAUSES THE IMMUNE SYSTEM TO REACT WITH ALLERGY TO A SUBSTANCE

In the beginning of the life of a person, the immune system has the potency to react against most substances in the body itself and the surroundings. However, there are mechanisms that learn the immune system to recognize normal substances found in the daily life in the early infanthood, and suppress the reactions against these. If this learning mechanism is disturbed, allergy can develop.

Allergy can also develop if a small child is never exposed to substances that later will be a normal ingredient of his daily life. In this case the immune system will not get the chance to suppress the reaction against this substance. Letting a small child grow up in an exaggerated clean and sterile environment can therefore cause allergies.

On the other hand, certain elements not being a port of a normal environment can cause allergies by repeated and massive exposure. Examples of such substances are chlorine.

TYPES OF ALLERGIES

Allergy varies according to the compound that causes the immunological reaction. An allergic condition also often implies reaction against a combination of several substances. Common substances causing allergy are: Pollen, domestic dust, mites in domestic dust, moulds and mould spores, chlorine, chemicals in soaps and cosmetics, animal hair, seafood, strawberry, fish, parasites, medicines like anaesthetics and antibiotics.

An allergic condition may periodically get better or worse according to the concentration of the allergen in the environment. A typical example is pollen allergy with peaks in the pollination season of grass or treas.

An allergic person will often get symptoms from several tissues in the body, but the symptoms are often most prominent at one body part and give very specific symptoms at that site. Examples of specific conditions often caused by allergy are eczema in the skin and asthma in the lungs and lower airpipe.

THE SYMPTOMS OF ALLERGY

Any organ can exhibit allergic reactions, but often the symptoms are confined mainly to one organ or organ system.

By allergic reactions in the respiratory system there will be symptoms like: Itching and soreness in the throat and nose cavities, swelling of the airway tissues, increased amount of secrets in the airway cavities and coughing. There may also be asthmatic symptoms or fully developed asthma. The main symptom of asthma is cramping that constricts the airways all the way down into the lungs (constriction of the trachea and tracholes).

By allergic reactions in the skin, there will be symptoms like: Redness, swelling, red spots, itching and soars.

HOW TO PREVENT ALLERGY

To prevent allergies in an individual the best way, one must begin in early childhood.

A child must be allowed to get in contact with natural elements like earth, dirt, animals, plants, physical contact with other humans, and the like. This exposure to natural elements must occur before an allergy has developed. In this way the immune system will learn to recognize common and harmless elements, and not overreact against this later in life.

Research projects have found out that children having much and early contact with pet animals like cats and dogs have a less chance of getting allergic problems later than children not having contact with pets. This is contrary to what many people believe.

On the other hands, every person should be protected from early childhood from certain elements normally not found in a natural environment, for example chlorine, soaps and cosmetics with artificial substances, and food containing unnatural additives.

METHODS TO TREAT ALLERGY

The first approach in the treatment of manifest allergy is avoiding exposure to substances causing the allergic reactions. Even though exposure to natural substances can prevent allergy, exposure to an allergen should be avoided when an allergy already has developed. Ways of doing this is:

  • Avoiding food one reacts against.
  • Avoiding contact with animals one have an allergic reaction towards.
  • Keeping rooms, clothes beds and furniture well cleaned.
  • Avoiding use of cleaners, soaps and cosmetics with unnatural additives.
  • Avoiding foods, drinks and snacks with unnatural additives.
  • Avoiding daily exposure to chlorine and other chemicals.
  • In cooperation with your doctor change medicines you use that may cause allergy with others.
  • Avoiding growth of moulds in the environment. This is done by well cleaning and keeping the environment dry.

Children are often exposed to allergens at school, and adults are often exposed at work. Parents with allergic children must inspect the school environment and require from the school administration and teachers that practically possible environmental measures are provided to keep the school free from allergens. An employee should require the same from his employer.

If you do not know exactly everything you react against, you can try to stop exposure to one factor after another, until you feel that the allergy alleviates, and then keep this factor out of your daily life for the future.

Sometimes avoiding allergens is difficult to accomplish, or make the lifestyle to restricted to be acceptable. Then one must apply medical treatment that alleviates the allergy.

A common way of treating allergy is applying medication that block the effect of the substance histamine, and thereby alleviate or prevent the symptoms occurring when the antigen get into the body.

Another way is desensitisation treatment. By this treatment one let the body get a controlled and gradually increasing exposure to the allergens over a time period, and when this period is over, one let the body get recurrent exposure to a controlled dose at regular time intervals. By this treatment the response from the immune system from the allergens gradually decrease, partly because the immune system thereby learns to recognize the allergens as harmless, and partly because the antibodies against the allergens are used up.

There are also natural products on the marked that contain ingredients that help the immune system to react more appropriately. Important effects of these products are reduced histamine secretion and increased histamine metabolism. Examples of ingredients in such medicines are: Methylsulfonyl methane, vitamin C, vitamin E, Echinacea purpurea, Quercetin, grape Seed, Stinging nettle, Coleus Forskolin.

Article Source: Health Guidance
Knut Holt