Selasa, 27 September 2011

Study: Shark Liver Substance Potential Treat Hepatitis

Recent studies show, in the body of the shark antibiotic useful for treating diseases in humans. The substance found in malignant liver predators can be used to treat various diseases, including dengue fever, jaundice, until hepatitis B, C and D.

Called squalamin, antibiotics are proven safe as an anti-virus on the human body. "It's nice to know squalamin potential as antiviral, especially after studies showed benefits in humans," said Chairman of the Georgetown University researcher, Dr. Michael Zasloff in the Daily Mail.

From experiments on animals and research in labaratorium, the scientists found that squalamin produce antiviral role against the pathogen or disease in the human body that can not be cured today, such as hepatitis.

This discovery may be able to unravel the mystery of how a very primitive immunity in sharks may be effective against viruses that infect all living things. "I believe squalamin is one of the substances that protect sharks and some ancient marine vertebrate animals, such as the sea lamprey of the virus," says Zasloff.

Squalamin protect the body from viruses that attack the liver and blood tissues. Some substances that are similar in the shark's body also was found to protect the body from viral infections.

The scientists say it is possible to harness the body's immune system to foreign shark to cope with various diseases in humans. Zasloff said many antibacterials that appear, but the doctors have little antiviral to help patients.

Dr. Zasloff squalamin clinical trials began in 1995. He found that these substances inhibit the growth of blood vessels such as those found in the growth of tumors and some retinal diseases. When it enters the body, squalamin can only access certain cells, including those contained in the blood vessels and heart.

Dr. Zasloff claims that squalamin designed to fight certain viral infections. "Most viruses to spend hours to complete its life cycle, the same as the time needed to perform defense squalamin in tissues and organs of the body against viruses," says Zasloff.

He added that squalamin act quickly to block the virus from growing, and cleanses the body from these diseases in a matter of hours.

Studies on animals show squalamin control of yellow fever infection, virus in horses, and murine cytomegalovirus. In some cases, animals fed squalamin recovered from his illness. The study is published in the early edition of Proceedings of the National Academy of Sciences, this weekend.

Four Destroyer Immunity System


You easily fall ill? Could be because of habit without realizing it, turned out to damage the immune system.
The effect is certainly bad for the body, problems of infection or inflammation will often be experienced.


Surely, you do not want this to happen. For that avoid the things that can damage or degrade the effectiveness of the immune system. As reported from ivillage.com, there are four things you should avoid so that the body can not easily affected by the disease.


1. Drinking too much alcohol
Drinking too much alcohol can harm the immune system. These are the findings of researchers from the University of Massachusetts Medical School in Worcester.
Excessive alcohol consumption makes the body vulnerable to infection and poor wound healing. Including increased risk of heart disease, liver, and pancreas.


"It (alcohol) is not good for the development of white blood cells (which protect the body against infectious diseases)," says Neil Schachter, MD, professor of medicine at Mount Sinai School of Medicine.
2. Many consume high fat foods
Consumption of high fat foods can make the work of certain immune system cells, slower and less functional. This reduces the ability of cells to protect you from disease. Fortunately, reducing the consumption of fatty foods can boost immunity rapidly.
Researchers at Tufts University analyzed the effects of typical Western eating habits, which menus contain 38 percent fat. Then, they compare it with the cholesterol-lowering diet with 28 percent fat, on immune function. Known, limiting the consumption of fatty foods increase the function of T cells, a type of white blood cells that help ward off infection.


3. Not sociable
Do not ever let you feel lonely too long. According to the research team from Carnegie Mellon University in Pittsburgh, lonely student with a few friends to have a weak antibody response to flu vaccine for the worse. Consider to gather with friends after work or on weekends.


4. Noise pollution
Noise has long been known as a trigger of stress and often you can not control it. Research in Japan showed that noise exposure can suppress immune function at the cellular level, and cause the antibody response. This can increase your susceptibility to disease and infection.

Contraceptive Hormone Effects on Memory in Women

Various studies show women and men have differences in remembering emotional details of an event. A group of scientists recently discovered, there are other factors that affect women's memory, namely the use of contraceptives.

Based on their findings, the birth control device that influences the hormones of the brain associated with memory. That is why the traumatic event stronger impact on women who use hormonal contraceptives.
Parts of the amygdala in the brain - a central role in making and storing memories will be affected by the use of contraception. Contraceptive hormones estrogen and progesterone in reducing a woman's body so that the limit of ovulation. But experts do not know clearly how to work the two hormones is to remember one incident.

In the study quoted by news stations Fox News, the researchers looked at whether women who use contraceptive pills to remember the incident in more detail than those who do not use it. Each group was asked to watch one event of accidents. Before the screening, experts took saliva samples to measure alpha-amylase - a chemical associated with stress.

After seven days, women not using contraception can be given the heart of the story but without many details as told by the users of contraception. Experts believe, this difference may be due to the amount of estrogen and progesterone hormones that affect the stress in the brain.

So experts advise to seek contraception that does not give negative effects on memory. This study also emphasizes that women are more likely to experience post-traumatic stress disorder than men.

Width-wide yawn Can Cool Your Brain


Do not always assume that yawning is a sign of sleepiness or boredom. Could be, it's because your brain is very high temperature and needs to be cooled. And functions as the coolant evaporates and useful to health was not widely known.


Researchers from Princeton University, United States, found that if yawning with width can decrease the temperature of the brain and preventing the over-heating conditions.


Professor Andrew Gallup, the lead researcher, and colleagues conducted a study in the winter, with the request in 80 pedestrians at random to see pictures of people yawning.


Then, he made ​​a note to see whether the respondent participated evaporated. The research was also conducted during the summer. Known, there are half of the respondents to evaporate in the winter. Meanwhile, only a quarter of which evaporates in the summer.


This makes the researchers believe evaporate could cool the brain, which at first seem counter-intuitive. According to Professor Gallup, yawning cools the brain through heat exchange with cold air, which are drawn inside. However, this system will not work when the weather is hot.


"Nearly 40 percent of respondents (in the winter and summer) to evaporate in the first five minutes when outside the room. But the percentage that evaporates in summer decreases to less than 10 percent thereafter," said Professor Gallup, as quoted by the Daily Mail.


It could also help explain why people become confused and disoriented in hot weather is extreme. That's because the brain has a limited way to cool down. Scientists say that the research results provide a better understanding of related neurological conditions such as motor neurone disease or epilepsy.

Know of Conditions Mouth Disease

Prevention is better than cure. Adage that have often heard it may be possible with a simple way: brush your teeth and gums clean. According to experts, brushing teeth twice a day can prevent heart disease and stroke.

It's hard to believe that by brushing a few minutes can give a great impact on health. But the facts show the mouth acts as a 'gate' of the entire body where the teeth and gums can represent a person's health.
"There is additional evidence supporting the fact that oral conditions can have an impact on overall health. Because it is very important to keep your teeth and it may be able to prolong your life, "says clinical director of Dentistry at Ultrasmile, Dr. Thang Nghiem as quoted in the Sun page edition of 22 September 2011.

According to some diseases can be determined from the condition of someone's mouth, such as jaundice, arthritis, anemia, and even HIV. Here are some conditions which might be due to oral disease:

Dry Mouth
Dry mouth is generally caused by lack of drinking water, allergies or smoking. But if you are not in these three conditions and the mouth is dry, be careful, maybe it's a sign of disease Sjogern syndrome. Dr. Nghiem said the syndrome is immune to attack and destroy the glands that produce tears and saliva so that the mouth and eyes become dry.

Fractured teeth / broken
This is a sign of reflux, a condition in which acid from the stomach up into the esophagus. This condition can cause heartburn in the stomach and other disorders. Dr. Nghiem said the receding acid should be treated by a doctor.

White tongue
Tongue that changed color to pale white can mean you contracted oral cancer. "The main sign of oral cancer is the tongue pale and sunken cheeks. Another sign is the color of white and red stripes or ulcers in the mouth, "said Dr Nghiem.

Ulcer
Ulcers in the mouth should not be underestimated. That could be the beginning signs of colitis or Crohn's disease. Crohn's disease is an intestinal infection that attacks all the digestive system, including the mouth.

Yellow color under the tongue
Palate or a yellowing of the bottom surface of the tongue can indicate liver disease. Dr. Nghiem explained both places is the first place that yellowing. If the condition is getting worse, the color yellow will also look at the entire surface is smooth in the mouth.

Reddened tongue
People who lack the blood can show signs of glossitis, inflammation of the tongue resulting in visible red and slippery tongue. Another sign is the red cracks at the corners of the mouth.

Sprue
Dr. Nghiem said the thrush could be a first indication of HIV disease. But do not panic first. Thrush can be treated with steroids and antibiotics to rule out other factors.

Other signs of people who have HIV, which is red on the tongue or tongue that look hairy warts or ulcers on the gums, lips and mouth. You are in doubt are advised to consult directly with your dentist or your GP.

Outdated and flat teeth
Teeth that are worn and the flat could be the one person is usually caused menggertakan teeth. Could be a sign of stress. "Babysitting at the mouth is very important to prevent his old enamel," he said.

Gum disease
Gum disease is generally caused by dental plaque resulting in redness and infection of the gums and bleeding when brushing your teeth. Dr. Nghiem said the latest study showed no connection between gum disease with heart disease and stroke. "This is because the bacteria in gum disease activates white blood cells that affects heart disease and stroke.
In addition, gum disease can also lead to complications content, including premature birth and babies born with weights below normal, "he said.