Archive for the ‘men’ Category

Which Birth Control Method is the Most Effective?

Thursday, June 19th, 2008

Before I give statistics, though, let me stress that any birth control method is only as good as the person using it. So, for instance, don’t expect your birth control pill to prevent pregnancy as well as it does in studies if you don’t take it as directed. And don’t expect a condom to work up to 90 percent of the time (as studies show) if your partner doesn’t put it on properly or use them every time you have intercourse-or come close to having intercourse.

The most effective forms of birth control are abstinence-not having sex-or sterilization. There are three forms of sterilization: vasectomy for men, in which the tubes through which sperm move into the penis are blocked or cut; tubal ligation for women, in which the fallopian tubes are blocked, burned or clipped shut; and Essure procedure for women, in which micro-inserts are placed into the fallopian tubes where they form a tissue barrier that prevents sperm from reaching the egg. Each is considered nearly 100 percent effective, and each is permanent.

The intrauterine device ParaGard also prevents pregnancy more than 99 percent of the time, and it can remain in place for up to 10 years. Another intrauterine device called Mirena has a similar efficacy rate, but it also releases the hormone progestin into your body. It may remain in place for up to five years. Another option in the 99-percent-or-more-effective category is Implanon, a tiny rod that is inserted into your arm where it releases a continuous amount of progestin to prevent pregnancy. It can remain in place up to three years.

Other hormone-related options, including birth control pills like Ortho TriCyclen, the OrthoEvra patch, the vaginal ring and progestin injections, are considered “very effective,” meaning they prevent pregnancy 91 to 99 percent of the time. The injection works for three months; the others for one month.

These invasive options are followed by more moderately effective options, which typically prevent pregnancy 81 to 90 percent of the time. They include male and female condoms, the sponge and a diaphragm.

The least effective category of birth control options, which typically prevent pregnancy up to 80 percent of the time, includes natural family planning, which you may know as the “rhythm method,” the cervical cap (FemCap or Lea’s Shield), and spermicide foams, creams, jellies, films and suppositories.

What’s right for you depends on your age and health, the type of relationship you’re in and your current concerns about pregnancy. I urge you to have a discussion with your health care professional about these issues and your various options before making any decision.

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Birth Control Pills For Men

Tuesday, June 17th, 2008

A birth-control pill for men is now a reality, according to an international consortium of physicians who revealed their formula for “safe, effective and reversible” hormonal contraception for males.The preparation includes progestin, a key ingredient found in women’s birth-control pills, and the male sex hormone testosterone. Progestin, a synthetic version of a hormone produced in a woman’s ovaries, helps suppress ovulation when used in an oral contraceptive. It appears to function in an analogous fashion for men, suppressing “both rate and extent” of sperm production.

“Reliable and timely contraception is a reasonable expectation for a wide range of couples of differing ethnicity, age and other characteristics,” the researchers stated yesterday. “The rate of suppression is comparable to that achieved after vasectomy.”

The team included 18 endocrinologists from the United States, Australia, Germany, China, Italy, the Netherlands and Switzerland, who based their conclusions on 30 studies conducted from 1990 to 2006, including data from the World Health Organization.

Most studies charted the efficacy of such treatments and the effects on the health of men given hormonal birth-control treatments by mouth, injection or through a skin patch for at least three months.

Birth control remains a feminine affair for the most part. In developed countries, 73 percent of contraception worldwide involved “female methods,” according to the United Nations” Population Division, which surveyed women of reproductive age in 160 nations. Condoms accounted for 13 percent and vasectomies 6 percent. Some say men are ready for more participation, however.

“Men are already using the only two contraceptives they have — condoms and vasectomy — in great numbers. At least in the United States, the idea that men aren’t willing to participate is clearly out of date,” said Elaine Lissner, director of the Male Contraception Information Project, a California-based nonprofit interested in nonhormonal methods.

“We used to talk about men ’sharing the burden’ of contraception. But these days, many men talk about wanting ‘control.’ Men want to control their own destinies,” Ms. Lissner said.

Potential solutions were showcased in the “Future of Male Contraception” conference in September, sponsored by the National Institutes of Health, the Department of Health and Human Services and the University of Washington.

Among the proposals from assorted researchers: testosterone gel combined with the female contraceptive DepoProvera, an “Intra Vas Device” which literally blocks sperm movement with plugs, and drug therapy that lowers a man’s supply of vitamin A — and thus his fertility.
The researchers, however, did not predict when male birth-control pills will be available to the public — though Dr. David Handelsman, another researcher on the team, has estimated a wait of about three years. They are clearly optimistic, though.

“Considerable progress has been made,” said Dr. Peter Liu, an endocrinologist with UCLA and the University of Sydney who directed the latest research, published in the Journal of Clinical Endocrinology and Metabolism. However, the team might not be able to benefit from the muscle of drug manufacturers.

Lacking proof that male contraceptives could be profitable, major pharmaceutical companies remain “mostly interested spectators,” according to Dr. Handelsman.

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Male Birth Control Pill 98% Effective

Saturday, May 24th, 2008

New research shows a new type of contraception for men in the form of a pill to be 98 percent effective, as effective as “the pill”.

Until recently, research into male contraception has involved hormone therapies that could have produced unwanted side effects. This new pill would consist of a chemical compound of a sugar molecule that could be put in a birth control pill or a patch.

The scientists researching this new form of birth control believe that the safest way to create a male equivalent of the commonly used female pill is to disable the sperm. The theory is that if you make the sperm unable to recognize the egg, fertilization cannot take place.

“Basically, what we’re trying to do, create, is a blind sperm; a sperm that can’t recognize an egg,” explained Dr. Joseph Hall, Ph.D. of the NSU Center for Biotechnology and Biomedical Sciences .

Although this chemical compound is about 92 percent effective in rats and 98 percent effective in the Petri dish, scientists say they want to get closer to the perfect male contraceptive.

It has taken Dr. Hall 18 years of research to get to this point and it may be a few more before tests are conducted on larger animals.

Meanwhile, a hormone-based male contraceptive, available in the form of a daily pill or a monthly injection is already available in many countries worldwide.

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Male Birth Control Pill May Soon Be Available In U.S.

Friday, May 23rd, 2008

A contraceptive for men might soon be available in the United States.

Doctors say it works much like the pill for women. It provides small doses of testosterone and progesterone to turn off hormones in the male brain that tell the body to produce sperm.

Men would take one daily. There is also an injectable form that could be taken once a month.

The contraceptive is said to be 98 percent effective in preventing pregnancy, as effective as the pill for women.

There haven’t been any long-term studies, so it is hard to elaborate on side effects, but health officials said it could cause weight gain.

An injectable and a pill form of male birth control is already available in other countries. it may be available in the United States as early as next year.

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Scientists Perfect Male Birth Control Pill

Thursday, May 22nd, 2008

Scientists are working on a new birth control pill made just for men.

According to a new report, scientists have developed a hormone therapy for men that’s 98% effective and works similarly to birth control pills for women.

However, researchers at Norfolk State University are taking a different approach to male contraception that, if successful, would not involve taking hormones.

The researchers believe that the safest and most user-friendly way to create a male birth control is to disable the sperm. The theory is that if you make the sperm unable to recognize the egg, you can’t have fertilization.

“Basically, what we’re trying to do, create, is a blind sperm; a sperm that can’t recognize an egg,” explained Dr. Joseph Hall, Ph.D. of the NSU Center for Biotechnology and Biomedical Sciences.

The researchers have come up with a chemical compound of a sugar molecule that could be put in a birth control pill or a patch. It is not a hormone, like some of their colleagues at other institutions are creating, that would stop the production of sperm. Instead, if stops the fertilization.

“We’ve used rats, which is about 92% effective, but in the Petri dish, it’s been about 98% effective.”

For the team at NSU’s Center for Biotechnology, that’s not good enough.

“However, in order to have a viable male contraceptive, you need to reach something like 100%,” said Dr. Hall.

So, it’s back to work, searching for the key to block, or blind, a few more nooks and crannies in the surface of the sperm that will result in that 100% male contraceptive.

It’s taken Dr. Hall 18 years to get to this point, and it could take two or three more years to begin experiments on larger animals.

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The Case for Abstinence

Tuesday, May 20th, 2008

Plan B won’t work. It’s time to come up with Plan A.

When the Centers for Disease Control and Prevention reported in December that the teen birth rate in 2006 had increased by 3 percent over 2005, reversing a 15-year trend in which it had decreased, the finger-pointing began. And in many media outlets, the fingers were pointed squarely at abstinence education.

To pick one example, a New York Times reporter wrote that the finding “fueled the debate about whether the Bush administration’s abstinence-only education efforts were working.” The president of Planned Parenthood assured the Times that it isn’t.

Given the fact that abstinence-only education has been around for years and that this big change was sudden, it seems legitimate to ask if the right suspect has been fingered. And if abstinence- only education isn’t responsible, then what is? A case can be made that the culprit is something its supporters claim is the answer to unwanted pregnancies and abortions: Plan B— which also goes by the names emergency contraception and the morning-after pill.

To understand how this can possibly be, you have to look at the long-term effect on society of inexpensive and effective birth control, which is the element that makes comprehensive sex education different than abstinence- only. This is what Nobel Prizewinning economist George Akerlof, Janet L. Yellen and Michael L. Katz did in a 1996 paper titled “An Analysis of Out-of-Wedlock Childbearing in the United States.” They were searching for the reasons why there was a huge increase in illegitimate births, single motherhood and abortions after the mid-1960s. Some people blamed welfare, others the lack of jobs in some sectors of society. Akerlof et al put the onus on the pill and other new forms of contraception.

The pill’s big effect was on the relationship of men and women. Whereas men and women had always had premarital sex, before the advent of oral contraception there was an understanding that if the woman got pregnant the man would marry her. There was a study of birth and marriage records from the turn of the 20th century that showed that 30 percent to 50 percent of all first children were conceived before the wedding.

The pill, which became widely available in 1965, is called a “technology shock” that altered the relationship equation in several ways.

One is that if pregnancy is now the choice of the woman, then marriage and child support are now the choice of the man. Another is that the presence of women who will have premarital intercourse without an expectation of marriage — something the pill allows — put women who wanted to wait until marriage to have sex at a disadvantage in the competition for mates.

Francis Fukuyama wrote in his book, “The Great Disruption,” that the primary result of the sexual revolution kicked off by the pill was that men were no longer responsible for the women they got pregnant.

Among the results documented by Akerlof and his co-authors was a jump by 1970 in sexual activity among girls under the age of 16, the end of the shotgun marriage, the almost total disappearance of virgins at the altar and the increase in illegitimate births, single motherhood and abortions.

Birth rates among teens climbed and then skyrocketed in the late 1980s, hitting a peak of more than 60 women per thousand, ages 15 to 19, in 1991. From there the numbers declined through 2005. In a July 2007 story trumpeting the drop in 2005, the Washington Post credited primarily a roughly 50 percent increase in the number of high school students using condoms on their last encounter (46 percent in 1991 versus 63 percent in 2005) and to a lesser extent a 13.3 percent decline in the number of teens who reported having had sexual intercourse that year (54 percent in 1991 versus 47 percent in 2005).

Manipulating statistics can be done to support any point of view, but there are a few things we know that make the Post’s conclusions seem dubious. We know that a sexually active girl who uses no birth control has a 90 percent chance of getting pregnant in one year. We know that contraceptive failure rates among first-year users — primarily the young — are far higher than among the general population.

An article published in Family Planning Perspectives, which is related to Planned Parenthood, reports that the failure rate for condoms for first-year users is 15 percent. It also reports that failure rates are highest among cohabiting and other unmarried women, the poor and African- Americans. Girls greatly reduce their odds of getting pregnant if they use a condom during intercourse, but their odds of getting burned are still only about the same as surviving Russian roulette.

Abstinence also has been blamed for the huge increase in sexually transmitted diseases among the young. However, if condoms are supposed to make sex safe and we have seen a large increase in condom usage among the young, then we would expect to see a drop in STDs. This clearly has not happened.

We also know that 54 percent of all women having abortions used contraception in the month they got pregnant; of the women using condoms, 14 percent were using them correctly. Imperfect usage is the primary cause of contraceptive failure. What we also know is that those teens who did not have sexual intercourse had a 100 percent chance of not getting pregnant. How many of these teens were affected by an abstinence- only program? We have no way of knowing. But to those who claim abstinence education doesn’t work, the Heritage Foundation published a list of 10 programs that significantly reduced, among other things, teen pregnancy, the age of first intercourse and sexual activity.

One example is the Not Me, Not Now program in Monroe County that targeted 9-to 14- year-olds. It recorded a drop in the sexual activity rate from 46.6 percent to 31.6 percent and a drop in the pregnancy rate for girls ages 15 through 17 from 63.4 pregnancies per 1,000 girls to 49.5 pregnancies per 1,000.

There are reasons abstinence-only programs can’t be 100 percent effective. They are dwarfed in numbers by comprehensive sexual education programs, so their effectiveness is mitigated because girls are still under pressure to have sex in the competition for boyfriends. The reason three out of four teen girls (and half of teen boys) give for having intercourse is their boyfriends wanted them to. But this isn’t anything new.

What is new is the growing presence of Plan B. Newsweek reported in 2006 that “Planned Parenthood gave out about 1 million emergency contraceptives— most were Plan B— in 2004, up from 75,000 in 1999.” It also said that some college students were using it as their primary birth control and that having it on hand made them “less reliant on traditional birth control.”

This is a recipe for disaster. The Newsweek story said Plan B is 90 percent effective, which is way below the effectiveness levels of other oral contraceptives, but that rate is in question. A 2007 story in Gynecology and Obstetrics states, “the published efficacy figures — on average, approximately 80 percent — may overstate actual efficacy, possibly quite substantially. Clearly, if the method is weakly efficacious, it is unlikely to produce a major reduction in unintended pregnancy no matter how often women use it.”

But if more young women are using it and it is far less effective at preventing pregnancy, we can expect to see an increase in unwanted pregnancies. Plan B is a sham in other ways. In that same article in Gynecology and Obstetrics, the man who claimed Plan B would reduce unwanted pregnancies by 50 percent, James Tressell, has “conceded that 23 published studies from 10 countries disprove his claim. According to every one of the 23 studies, published between 1998 and 2006, easier access to EC fails to achieve any statistically significant reduction in rates of unintended pregnancy and abortion.”

Here are a few things we know about girls under the age of 14 having sex. The organization Preventing Teen Pregnancy reports it is almost universally unwanted by the girls. A study of girls in California and the males who got them pregnant, by Mike Males at the University of California- Irvine, showed that the girls were vulnerable in that they “may want to become ‘adults’ more quickly to escape an unhappy or deprived home environment” and that the fathers were older men (the younger the mother, the larger the age group between her and the father).

Of the mothers from 11 to 15 years old, 91 percent of the fathers were older — not peers — and 50 percent of the males were beyond high school age. Among all teen mothers, 68 percent of the fathers were over the age of 20.

In a study published in the American Journal of Obstetrics and Gynecology on the role of male sexual partners and relationships in determining whether women seek emergency contraception when needed, it was found that “factors measuring power dynamics, such as male dominant decision making and pressure for sex as well as a strong desire to avoid pregnancy on the part of the male partner have a significant association with the use of EC. However, relationship factors known to be associated with use of other contraceptive methods, such as communication, satisfaction and commitment, show no association with EC use.”

Plan B leaves vulnerable young girls, whose only weapon against the unwanted sexual advances of men is the fear of pregnancy, defenseless. The man can say, “Call me tonight and take two pills in the morning.” The problem is, those pills don’t work as well as advertised. Our society’s response to teen pregnancy has been to address the symptoms and not the cause. A middle school in Portland, Maine, responded to pregnancies among its students by making birth control pills available to girls as young as 11. Texas Gov. Rick Perry issued an executive order making it mandatory that all girls entering sixth grade in 2008 be vaccinated with Gardasil, which prevents some forms of cervical cancer that are caused by the STD human papilloma virus. This just keeps us on a path that is leading in the wrong direction, a path that is having a negative impact on the welfare of our country.

STDs have become epidemic and, according to a March 2006 article in Newsweek, are in part to blame for a 20 percent increase of infertility among the young since 2005. Suicide rates among sexually active teens are much higher than among those who abstain. And the incidence of single motherhood is increasing in all age groups.

The percentage of children born to unwed mothers has jumped from 5.8 percent in 1960 to 36 percent today. The percentage in the African- American community is nearly 80 percent. Single motherhood is the most common determining factor among those living in poverty, and with it comes a host of social problems and expenses.

Akerlof and his co-authors wrote that the pill, which carried such promise, led slowly to the feminization of poverty. But they also point out that turning back the clock on birth control would only exacerbate the problem, exposing women to men who, as cultural anthropologist Lionel Tiger put it, have come to expect uncommitted intercourse if only because that is their experience. Akerlof proposes mandatory child support as a way of forcing young men to take some responsibility for the children they father.

Recent headlines, in the wake of the pregnancy of 16-year-old Jamie Lynn Spears, have shouted that teen pregnancy has become cool. There is no longer any stigma attached to single motherhood. All of this is harmful to women.

We need to restore the sense of commitment between sexually active people that was the norm before the advent of the pill. To do that we need a commitment from all areas of society. It will take an effort on the scale of the no-smoking campaign and it will take time.

We have the 43 years since the start of the sexual revolution to undo. We have made smokers pariahs, banned them from public places and shown through graphic television commercials the physical effects of their behavior. We can do the same thing to attack teen pregnancy.

Call it abstinence, call it character-based, call it comprehensive, but it won’t succeed unless we find a way to instill a feeling of responsibility into young men toward young women, who have borne the brunt of our safe sex policies. We should teach men to respect women, and not have intercourse with them until they are ready to care for the life they may be creating.

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Birth Control Methods

Wednesday, May 7th, 2008

Know Your Options

Men and women are constantly facing the problem of what to do about birth control, they readily agree that they are not prepared to become parents and they need to make a choice about what method they should use. They know there are many options available, however most people are confused about what they are. Having a working knowledge will make you feel confident about the choice you make about birth control methods.

Making informed decisions about birth control will come after you have thoroughly researched the facts and discussed them with your medical care professional, as well as recruiting you partner or spouse to help you with the final decision process. While no method is 100% effective, some are very close to that number while others are not quite as effective, you should know which will offer you the maximum protection.

Before making your choice of contraceptive, you will need to consider certain factors. These factors include your general health, the number of partners you have, if you plan on bearing children in the future, how well your birth control method of choice works, and the possible side effects. Most types are safe but you should discuss side effects with your health professional so that you can avoid any future problems associated with the side effects of you method. Another important thing to remember is that most birth control methods do not prevent sexually transmitted diseases (STD), so it is recommended that you take that into consideration when choosing.

The most effective way to avoid STDs or pregnancy is abstinence (no sexual intercourse), it is the only form of birth control methods that is 100% effective against both pregnancies and STDs, however most people do not practice abstinence, so the use of other forms as a necessity.

One of the most effective forms of birth control methods available on the market today is the latex male condom. It offers the best protection from STDs and used correctly is also the best protection from pregnancy. It can be bought over the counter in pharmacies and is given away free in most clinics and family planning centers all over the country.

Oral Contraceptives (the Pill) are taken on a daily basis and block the ovaries from releasing eggs. This option is between 95% and 99% effective; however they will not protect you from STDs. The most common forms of this contraceptive are the Ovcon35 and Seasonale. There is also a miniature version of the medication called the Mini Pill which thickens the cervical mucus to prevent the sperm from reaching the egg. This method is about 92% to 99.99% effective. It may cause “birth control pill acne” birth control on your back and face.

Copper T IUD (intrauterine devices) are small devices that are shaped like the lowercase letter t and is placed in your uterus by your doctor. It stops the sperm from reaching and fertilizing the egg. This form of birth control does not protect against STD’s and is about 99% effective.

Mirena (IUS) is another T shaped device placed in the uterus by the doctor. Mirena releases a hormone called Levonorgestrel every day. The hormone causes the cervical mucus to thicken and block sperm from fertilizing the egg. It is 99% effective and lasts in the system for 5 years.

Depo Provera is an injection of the hormone Progestin every three months. It does not protect against STDs and is 97% effective.

Less effective forms of birth control include female condoms, the diaphragm, contraceptive sponge, the patch, and the NUVA ring. While they do offer some measure of protection there is still a higher chance of pregnancy.

In conclusion, if you do not want to get pregnant, you should go ASAP to see your health professional to discuss the form of birth control method that is the best for you and know what you birth control options are.

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Why Don’t they Make a Birth Control Pill for Men?

Tuesday, January 15th, 2008

This time the Ask a Scienceblogger Challenge is to explain why a male contraceptive pill does not exist.

Good question! It’s because medical researchers are all sexist bastards. Didn’t you know?

Actually that’s only part of the reason. Research into hormonal or pharmaceutical contraception for men is a hot topic. Male hormonal contraception is actually fairly effective. Using a combination of testosterone and other hormones to suppress the secretion of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) from the pituitary you can, after several months, prevent men from making sperm. For the men that respond (not all do), this treatment is highly effective as a contraceptive method. But the problems are delivery and efficacy. If you first screen men to see if they respond, then it is highly effective. But it doesn’t work on everyone: unlike the pill, you have to inject these drugs, put in implants or use a patch for delivery. This makes it far less attractive than the oral contraceptive pill for women, which is 98% effective when usedcorrectly and works with few exceptions. In the future, researchers may develop a more effective delivery and screening system for men that would allow them to more reliably assess the efficacy of the treatment.

Sexism has played some role in the long delay in the development of male contraception. But these days the far more important issues are those of physiology and capitalism. Women produce one egg a month and have a biologically built-in mechanism for preventing ovulation. Men, on the other hand, are sperm machines, producing an overabundance of genetic delivery vehicles from adolescence until death–with no simple mechanism to interrupt production. That’s why barrier methods, such as condoms, will likely remain preferable even after the development of hormonal birth control for men as they are highly effective and also prevent STD transmission. And for women, the pill (especially in lower-dose modern formulations) is safe, effective, and very well tolerated.

The second problem, that of capitalism, refers to the difficulty in developing a market for male contraception and thus the limited incentive for their production. It will be difficult for drug companies to sell a formulation for men that alters their hormones, lowers their sperm count (a cultural barrier), and requires doctors visits, injections, sperm counts, etc., when highly effective alternatives already exist. Many women will also likely prefer to remain in control of contraception because it’s their body, their health, and because men are liars. The capitalist barrier may be even more significant than the physiological obstacles.

Male hormonal birth control options will probably be offered within a decade. But they will likely be a niche market, limited to people in committed monogamous relationships, or for the partners of women who can’t tolerate the pill, and thus, not widely adopted.

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