Researchers find gene linked with sperm

How to get cheap Cialis without insurance over the counter

Buy generic tadalafil at Walmart. Your pharmacist may recommend the generic version of Cialis, tadalafil and use discount coupon to help reduce the cost per pill of your prescription.

CHICAGO (Reuters) - A single gene may be crucial for the final stages of sperm cell formation and could help explain why some men are infertile, U.S. researchers said on Wednesday.

Laboratory mice that lacked the gene had a significantly lower sperm count and were infertile, researchers at the University of North Carolina at Chapel Hill discovered.

And the few sperm the mice did produce had significant defects, they said.

"Because this gene has a very specific effect on the development of functional sperm, it holds great potential as a target for new infertility treatments," Yi Zhang, a professor of biochemistry and biophysics at the university's school of medicine, said in a statement.

About 1 in 6 couples in the United States has difficulty conceiving a child, according to the National Institutes of Health. In 30 to 40 percent of these 2.6 million couples, the men are infertile.

Vacation Home

Guest written by our friend Gladys Fuentes

Cialis 20 Mg

Zhang's study, which appears in the journal Nature, focused on the last stage of sperm cell formation known as spermiogenesis. During this phase, DNA is crammed into a tight ball at the head of the sperm, ensuring that it can successfully penetrate an egg.

Mice bred to lack a gene responsible for this process produced few mature sperm, and the few that were produced had abnormally shaped heads and immobile tails.

"This gene is very important in controlling key genes that are involved in compacting the DNA," Zhang said in a telephone interview.

In the mutant mice, Zhang and colleagues detected a defect in sperm DNA packaging. The mice also had smaller testes, but Zhang said this was because the testes were not filled with sperm as they should be.

He said more work needed to be done to discover whether this same defect causes infertility in men.

"The first thing we need to know is whether people have mutations of this gene," said Zhang, who plans to team up with researchers studying this infertility syndrome in humans.

Ultimately, he said this discovery could lead to the development of a drug that compensates for mutations in the gene.

"That possibility is there, but it is not going to happen tomorrow," Zhang said.

The research was funded by the Howard Hughes Medical Institute and the National Institutes of Health.

What is impotence?

Impotence or erectile dysfunction is defined as the inability to achieve or sustain an erection that's hard enough or lasts long enough to complete sexual intercourse or another chosen sexual activity. It affects at least one in ten men, which means there are about 2.3 million men affected in the UK.

Many men suffer for years without seeking treatment. This may be because they're too embarrassed to seek help or they're unaware that there are treatments available.

 If you are not in NY but looking for something horse related you can even find their products online at  Give them a try. You’ll be pleased with what you purchase.

Quality Cialis Online - Find here just qualify medications at a amazing prices


Cialis is an oral erectile dysfunction treatment introduced in 1998. Since its introduction, Cialis has become the most popular as well as successful impotence medication on the market today. Cialis works by opening blood vessels in the body to increase blood circulation to the penis during sexual stimulation. As the arteries in the penis begin to harden and expand, blood flow out of the penis is restricted, thus causing an erection. Tadalafil has been proven successful for 4 out of 5 men who use Cialis for impotence; regardless of how long they've had erectile dysfunction, what caused it, or how old they are. Cialis should be taken 30-60 minutes before sexual activity. Cialis 20mg should only be taken once per 24-hour period.

The other interesting thing about generic Tadalafil pills (that no one is mentioning for fear that the drug will be abused), is that in many men, the drug allows them to maintain an erection even following multiple orgasms. So, when you buy Cialis over the counter at Walmart may eventually be useful for treatment of premature ejaculation. As a matter of fact, if this really works, it will be premature ejaculators who win out -- they still maintain their erection, but get to have more orgasms! Another implication is that for men who have partial erections, or easily lose their erections, this drug may make it easier for them to use condoms and have safer sex.

Do It Yourself or Do for Me SEO Services

Entre Card
Follow us