Male Birth Control Treatment Could Focus on Sperm Proteins, Not Hormones

Oct 6, 2015


By Rachael Rettner

A male form of “the pill” has stymied researchers for years, but now a new study finds that such male birth control may be possible by blocking a single protein in sperm cells.

In a mouse study, the researchers focused on a protein called calcineurin, which is found in the sperm-producing cells of the testes as well as other cells in the body.

The researchers genetically engineered mice so that they lacked a gene that makes part of the calcineurin protein but is activatedonly in sperm-producing cells. When these mice had sex, they were infertile, the researchers said. (This genetic engineering experiment was done as a proof of concept, to show that this gene affects sperm,)

In a separate experiment, the researchers treated the mice with two drugs that block calcineurin, called cyclosporine A and FK506. Both of these drugs are already used in patients who’ve had organ transplants to suppress the immune system and prevent the organ from being rejected by the body.

After about four to five days of treatment, the mice developed defects in their sperm and became infertile. But once the treatment was stopped, these defects went away, and the mice were fertile again within a week.

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4 comments on “Male Birth Control Treatment Could Focus on Sperm Proteins, Not Hormones

  • The men is the only creature who claims the ultimate excite machine at a universal level and have imposed for far too long upon the female its organ as a thing entitled to be satisfied and no attention is given to the women who is seen as a receiver as if there is nothing accompanied to it; but who is the eligible person to speak on this matter other than women? but do women qualify? If she has not voiced her natural excitement and if she does not know that such is even possible or is frightened by her natural experience as a sinful event then she is an open season as any man’s pray – gay or not. universally women have allowed men to believe that they are incapable of excitement that is similar to the male; therefore she leaves the male into confirming that his thinking conforms with her thinking which is that his notion is naturally appropriate and that there is no challenge to his shortsightedness which perpetuates the survival of an idiotic myth selling women to accept her humanity as a diamond mine naturally carved for a depositor who is free to mine. And where the sperm does according to its natural course the women being her natural self permits the vagina miner to not think so much about what is to be extracted out of her body — that is something of essential value — her blood, which depletes during pregnancy and for some time after birth she continues to sacrifice her blood as she provides food source for the weak link excavated by the miner depositor.

    Give men this protein because help isn’t coming from women under the circumstances. We will deal with the inevitable cry of the weeping religions holding for itself illigitimately an abstract right of a male to reproduce and no challenge against the means available to him on training him how to contribute to this schematic which is currently worked out for him to play a miner role, in some instances an owner role where money is exchanged; and where these men are religious or play the religion card they also are free to call themselves imperfect being, sinners in god’s eye but whose male lives are lived as if exonerated in god’s spirit ….
    If science can help the male where the male can positively contribute to the cause of the women especially those women who are held up in a perpetual bondage, child rearing under dire economic circumstances, and inevitably help the planet earth, this contraceptive act carries a potential for the sperm to become a collaborator in the movement against unwanted pregnancies that does not impact his likeness to venture the fem sanctum sanctorum.

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    kuhchuk says:

    And nothing of value was said.

    Seriously, I wish Hitchens were still alive so I could hear his take on the direction that modern feminism was taking. He’d probably have to recycle the subtitle of one of his previous books “How Feminism Poisons Everything”

    Very few women are actually in bondage in the west these days. The most notable example of actual bondage I can think of would be the three women that Ariel Castro kidnapped and raped for 10 years. What’s important to note is how Castro was universally vilified. Society does not hate or enslave women. Pull your head out of your ass.

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