‘Health Care’

Scientists create human cells directly from skin

Wednesday, June 30th, 2010

skinTwo teams of British and Canadian scientists have created human cells directly from the skin of a patient, eliminating the need for embryos.

The results of the investigations of both teams, announced by the journal Nature, are an important step in the search for safe treatments for the replacement of damaged tissue of any part of the body.

Properly handled by the scientists, skin cells take on the properties of stem cells from embryos normally so they can become any tissue in the body.

Previously it was only possible to create these induced pluripotent stem cells (initials in English: iPS) using viruses to insert four genes that perform the reprogramming.

But the modified virus DNA in the cells so that increased the risk of cancer, so the technique was too risky for use in human patients.

Another danger that existed was that the changes caused by genes would lead to developmental abnormalities.

But now, scientists have managed to avoid the use of viruses and remove genes once they have fulfilled their task.

British and Canadian teams were able to insert four genes into a single segment of DNA to carry out the necessary reprogramming and then removed before they could cause damage.

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Advances in vaccine cocaine addiction

Sunday, June 27th, 2010

vaccineResearchers at the School of Medicine, Yale University, U.S., tested an experimental vaccine with 55 cocaine addicts during a clinical trial that lasted 24 weeks.
The study results were published in Archives of General Psychiatry (Archives of General Psychiatry.) The scientists found that 38% of participants failed to meet the appropriate levels of antibodies to stop experiencing the feeling of euphoria that produces the drug.

The vaccine works by “wrapping” to cocaine so that it does not have effects on the brain, heart or other organ “,” This is the first successful controlled trial of a vaccine against cocaine, say scientists.

According to previous studies conducted on animals and humans, high levels of anti-cocaine antibodies in the blood can prevent addicts experience that feeling.

However, the researchers stressed that the vaccine who managed high antibody level, only maintained it for two months, so it would need repeat injections.

According to the researchers, the effects of high antibody levels began to be seen until the eighth week of the test. Taking into account that on average, a patient comes to treatment after six to eight years of drug abuse, may be needed two years of vaccines, scientists say.

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Shampoos and conditioners cause allergy

Thursday, June 24th, 2010

shampoos and conditionersLately some people suffer from certain allergies to the scent of the most common ingredients used in shampoos, conditioners and soaps.

According to EurekAlert website, a research presented at the Sahlgrenska Academy at Gothenburg University, Sweden, found that more than 5% of people who underwent screening test are allergic to linalool oxide.

“Approximately 2% of the total population of Sweden is allergic to linalool oxide,” says Brar Johanna Christensson dermatologist, author of the study.

This may not make much sense, but it is something serious because linalool oxide is widely used as fragrance ingredients. Specifically found in 60% -80% of hygiene products scented liquid soaps and cleaning products for home, and may be hard for people who are allergic to avoid these products explains the expert.

One in five people in Sweden have some kind of contact allergy, nickel being the most common substance that causes eczema, but new research shows that linalool oxide ranks third in the list, then cobalt.

This component is present in many commonly used products and this is probably the reason why a contact allergy is so common this material, “but we know that risk increases as the exposure to the substance increases,” concludes Brar Christensson.

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Brazil authorizes the deployment of overseas stem cell transplant

Monday, June 21st, 2010

bone narrow

The Brazilian government authorized the dispatch of samples of bone marrow stem cells and blood abroad to be used for transplants, which allow the country to collaborate with networks of international donors, officials said.
Stem cells must belong to people involved in the Brazilian Registry Bone Marrow Donors Volunteers (Redoma), as stated in the decree that was published in the Official Journal of the Union.

Samples can be sent both bone marrow and blood, and umbilical cord blood or placenta.

The responsibility for the necessary legal formalities for the shipment will be borne by the Secretariat of Health Care, while the National Cancer Institute is responsible for managing the paperwork required for the efficient registration of donors.

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Sunbathing die trying

Friday, June 18th, 2010

sunbathingKnowing how long you can spend in the sun, without running the risk of ultraviolet rays damage the skin, it is now possible thanks to a system that calculates the appropriate period of exposure to solar radiation, according to the skin of each person and the place where you are.

With this invention seeks to reduce the incidence of skin cancer. “The software determines the maximum recommended exposure to solar UV radiation, including the use of protective creams for people with different skin types displayed at any time and day of the year,” he told EFE Ruben Piacentini, director of Institute of Physics of the Argentina’s Rosario city (IFIR), which developed the project.

According to Argentine newspaper Infobae, the system can be installed on any computer and was created with the collaboration of researchers from the University of Innsbruck, Austria, Argentina and the Foundation Skin Cancer.

How to use

For information, the user must enter your skin type, the kind of surface you are (sand, water or cement), time of day and geographic location in which you, as the height or snow can increase the risk of radiation by 60 percent.
Sunbathing die trying

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Physical Urticaria

Tuesday, June 15th, 2010

Physical urticariaUrticaria is the appearance of skin lesions with erythema (redness), formation of hives (elevated pale skin), and itching that can occur locally or widely throughout the body. Causal factor whose hives are the physical stimuli, heat, cold, scratching, pressure, etc … are the group that is called physical urticaria. Constitute the majority of known cause chronic hives.

Special Features

1. Are clinically measurable or quantifiable, because the stimuli that cause so are to play in the diagnosis.

2. They tend to be immediate (onset in minutes) and short (after an hour tend to disappear). As an exception we delayed pressure urticaria.

3. In the majority of cases are located at the site of stimulation.

4. They tend to be reproducible challenge test clinically well defined, which makes diagnosis and control. Physical Urticaria

5. They usually affect young adults, with a preference for females.

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Burns and his Treatment

Saturday, June 12th, 2010

BurnsBurns are a specific type of soft tissue injury. Occurs when the body receives more energy (heat, chemical or electrical) than it can absorb without injury.

A severe burn can be life threatening and requires immediate medical attention. The severity of the burn depends on the temperature of the medium that caused and duration of exposure. They are primarily skin lesions, but sometimes affects other organs like lungs, heart, kidneys, etc.

The severity of burns is determined by five factors:

Depth of burn: 1st, 2nd and 3rd grade.
Extent of burn: Percentage of body area affected.
Condition critical regions: Hands, feet, face and genitals.
Patient age: Under 2 years old or very old.
Overall health of the individual.

Causes. What causes it and how is it produced?

Physical agents
Burns and his Treatment

Solid hot irons, stoves.
Boiling liquids: water, oil, coffee, etc..
Cold: Exposure to extremely low temperatures, local ice unprotected intermediate cooling sprays misused.
Fire, flames directly or solid waste.
Chemical
Gasoline and oil in general.
Acids: hydrochloric, sulfuric etc.
Alkali: Caustic soda, lime or carbide.
Electrical Agents
Electric shocks at different voltages: Cables, electrical appliances, plugs without protection, lightning.
Radioactive agents: solar rays, X rays, infrared radiation.

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Stress and hair loss

Wednesday, June 9th, 2010

hair lossThis points out the head of communications Mayquel Hair Creations, Marisa Oliver who says the mood and stress processes may produce fumes or temporary hair loss and hormonal reactions that result from these situations result in a higher concentration of certain hormones such as testosterone and hidrocortisol, affecting the hair roots.

It is also common to stress that there is a scaly process, something that, in both cases, “ends when we eliminate that stress,” hence it happens that while recommending “care for the scalp as possible,” said Oliver .

Therefore, and given that we live in a time of stress and “concern for fear of losing their jobs, being unable to pay the mortgage, to be left without a home,” said this expert in the field has been observed in capillary recent months an increase in inquiries related to this issue in order to find a solution.

Alopecia areata stress

Psychosomatic disorders are physical illnesses caused, exacerbated or reactivated by psychological factors.

José Luis González de Rivera, head of the Psychiatry and Psychosomatic Medicine of the Fundación Jiménez Díaz, says passengers are usually disorders as resulting from stress “situation”, transitory, the result of the requirement of a particular time .

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Advances in vaccine cocaine addiction

Sunday, June 6th, 2010

AdvancesThe study results were published in Archives of General Psychiatry (Archives of General Psychiatry.) The scientists found that 38% of participants failed to reach adequate levels of antibodies to stop experiencing the feeling of euphoria that produces the drug.

The vaccine works by “wrapping” to cocaine so that it has no effects on the brain, heart or other organ, “” this is the first successful controlled trial for a vaccine against cocaine, say scientists.

According to previous studies conducted with animals and humans, high levels of anti-cocaine antibodies in the blood can prevent addicts experience that feeling.

However, the researchers stressed that the vaccine who managed the high level of antibodies, only maintained it for two months, so it would need repeat injections.

(more…)

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Anxiety and Stress: two sides of same coin

Thursday, June 3rd, 2010

stressStress is an experience of psychological instability in response to environmental factors. This disease is a source of disease and impacts at short, medium and long term. Additionally, you can damage the brain at the molecular level and from there, extending its damage to the body.

Anxiety and stress are disorders that involve a huge social burden in terms of disability and social costs. It is estimated that between 25 and 40 percent of the population has an episode of anxiety over his life.

Anxiety disorders are the most prevalent psychiatric disorder among the general population. Anxiety and stress appear as two sides of same coin. “The anxiety is the psychological aspect of stress and this is the somatic aspect, the biological side, anxiety,” says José Luis Carrasco, section chief of the Psychiatry and Director of the Unit Personality Disorders Clinical Hospital San Carlos, Madrid, Spain.

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