Sunday, March 6, 2011
Riboflavin
Vitamin B1
men's health
causes tooth decay
fat people eat cucumber and lemon
20 Food is the enemy of diabetes
Apples effect on white teeth
Familiarity with the 15 signs of cancer
3-D image of HIV (Photo)
Ivan Kvnstantynvf leading a research team from Russia is responsible, on how to prepare these images says: Our group of hundreds of prestigious scientific journal, material related to the virus was collected.
The images recorded as dichromatic and attack them with the HIV virus and fusing them orange with gray immune system is displayed.
Kvnstantynvf believes that three dimensional display method of viruses, can greatly help the medical science does.
Microbial probiotics for life
Impact of stories on children mind
Why does my back pain?
Why is heel pain in my leg?
Introduction to 10 type of headache
Article 16 anti-nausea
The role of probiotics, increased human longevity
Anemia in pregnant women does not create problems for the fetus
Friday, March 4, 2011
Human Papillomavirus
Since there are so many strains of HPV, each strain is given a number. This is then referred to as an HPV type. HPV gets its name from the fact that many strains cause warts or papillomas.
Warts that appear on the hands, face and feet are included in the HPV family group. These strains are acquired from direct contact with an infected person or a contaminated surface.
The strains of HPV most people are concerned with are the ones classified as sexually transmitted. HPV genital infections are currently the number one most common STD in the world.
According to the CDC, approximately 20 million people worldwide are currently infected with HPV. By age 50, at least 80% of women will have acquired genital HPV infection.
HPV is also referred to as a ‘silent’ STD. Although some strains do cause genital warts-most strains have no symptoms at all. This is what makes HPV so contagious. With no symptoms, you unknowingly pass the virus on to your partner.
The HPV virus lives on the skin and mucus membranes. These mucus membranes include: the mouth, nose, vulva/vagina, anus, penis and cervix.
Diagnosis of HPV generally occurs with abnormal pap smears and visual diagnosis of genital HPV warts. There is currently no testing available in the United States for men, even though men can carry and pass on this infection.
There is also no current cure for HPV. Most times, the HPV infection clears up and goes away on its own.
The only way to completely prevent HPV infections is to abstain from any sexual contact. Having a long-term relationship with a person who has had few to no sexual partners decreases your chances of acquiring HPV, but there is no way to determine if your partner is already infected.
On June 8th, 2006, the US Food and Drug Administration approved the use of Gardasil, the 1st vaccine of its kind to help prevent four strains of HPV. This vaccine would have to be given before a young girl becomes sexually active. The current target age range is 9-12 years of age. Several states currently have bills pending that deal with the question of should all girls be vaccinated. Gardasil is made to help protect girls and women from high risk strains 16 and 18, known to develop cervical cancer and strains 6 and 11, commons strains that develop genital warts.
Gardasil is constantly being monitored as the long term effects and effectiveness has not been established.
The best defense for your health is routine yearly pap tests. Early detection of cervical changes is best. It is these cases that can easily be treated and have the best success rates. Since HPV in young women is so common, and abnormal cervical cells are not, women are not routinely tested for HPV during g a pap test. The HPV test is generally only given to women over the age of 30.
If you’re acquired HPV, remember that you’ve done nothing wrong. Having HPV means you’ve been exposed to a common virus.
The types of HPV that cause warts on your hands and feet do not cause genital warts or cervical changes. The same rings true for genital warts. These HPV strains do not generally spread to other areas of the body.
Most sexually active partners share HPV until the immune system gets rid of the virus or suppresses it. Since there are so many strains of HPV, becoming immune to one strain does not protect you from another.
It is also important to remember that a diagnosis of HPV is not a reliable and positive indicator of unfaithfulness.
Having HPV is not the end of the world and it should not affect your life. Having routine pap smears to detect early changes in your cervix is something every woman should already be doing. Every major medical authority in the world supports routine cervical testing.
infertility information
For these couples, regular unprotected sex is all it takes to conceive a child.
If you’re trying for a child or thinking of doing so in the future, knowing the basic facts about fertility can be helpful.
The monthly cycle
Every month, hormonal changes in a woman’s body cause the ovaries to release a single egg. This egg passes into the fallopian tubes, which link the ovaries to the uterus or womb.
At the same time, the lining of the womb thickens. This is to prepare it for the possibility of receiving a fertilised egg.
If fertilisation does not occur, the womb lining will break down and will be shed through the vagina. This is a woman’s period. The period is made up of the womb lining and a small amount of blood.
Sexually mature females have a period approximately every 28 days, although between 24 and 35 days is common.
If the woman has unprotected sex within days of the egg being released, sperm from her male partner may fertilise her egg while it is in the fallopian tube. The fertilised egg will then travel to the womb and become embedded in its lining, where it will start to grow.
How conception occurs
Once an egg has been released from the ovaries, it can be fertilised by sperm within 12 to 24 hours.
Sperm can survive in the fallopian tubes for up to 72 hours, so fertilisation can occur even if sperm entered the fallopian tubes before an egg was released.
During conception, a single sperm from a man penetrates the egg of a woman. The sperm carries the father’s genes, while the mother’s genes are contained in the egg. Once the egg has been fertilised by a single sperm, no more sperm can enter.
The fertilised egg, called a zygote, continues to move down the fallopian tubes, until it reaches the uterus three to seven days later. Here, it will implant itself into the lining of the uterus, where it begins to grow.
Until eight weeks after conception, the implanted zygote is called an embryo. After this, it is a foetus.
For most women, the first sign that they are pregnant is a missed period. A few days after that missed period, a urine test can confirm the pregnancy.
Urine tests for pregnancy are available through your GP or family planning clinic, and are often available at your local pharmacy.
If you're trying to get pregnant
If you're trying to conceive, you can find more advice in
help getting pregnant
Fertility expert Professor William Ledger sees many couples hoping to get pregnant.
“Have a happy sex life” is his top tip. He says that some couples with fertility problems don't have sex often enough to give themselves the best chance of conceiving.
An understanding of a woman’s monthly fertility cycle can be helpful. But there’s no need to try to time sex around your cycle. It’s better simply to have sex often throughout the month.
The monthly fertility cycle
Every month, hormonal changes in a woman’s body cause an egg to be released from the ovaries. This egg travels into the fallopian tubes, which connect the ovaries to the uterus (womb). This is called ovulation.
You’re most likely to get pregnant if you have sex within a day or so of ovulation. Ovulation usually happens about 14 days after the first day of your last period.
An egg lives for about 12-24 hours after it’s released. For you to get pregnant, a sperm must fertilise the egg within this time. Sperm can live for up to seven days inside your body, which means an egg can be fertilised by sperm that entered the body before the egg was released.
Learn more about the monthly cycle and pregnancy in When can I get pregnant?
Sex and pregnancy
If you’re hoping to achieve pregnancy, for the best chance of success you're recommended to have sex every two or three days throughout the month.
You don’t need to time sex around ovulation. Trying to do this can be stressful, and becoming stressed can lead to you having less sex.
“Some people buy special kits, or use temperature charts, to try to monitor when they’re ovulating,” says Professor Ledger.
“But temperature charts can be hard to keep and aren’t always reliable. Both kits and charts can cause unnecessary anxiety without being much use.
“Knowing your exact day of ovulation is only useful if you want to time intercourse to the day. Aim for less stress and more fun. After all, it should be a happy time.”
Find out how to give yourself the best chance of conceiving inHow can I get pregnant?
How long to get pregnant?
Nine out of 10 couples in which the woman is under 35 will conceive naturally after one year of having regular unprotected sex.
There is more advice in How long does it usually take to get pregnant?
If you’ve been trying for a year or more and have not become pregnant, see your GP. Your GP can do tests to help identity possible fertility problems, and provide advice on the next steps.
If the female partner is over 35, or you’ve had problems before, such as an ectopic pregnancy or surgery that may have affected your fertility, seek help sooner.