Learn about Erectile Dysfunction and Sildenafil Citrate Online

Have you ever wondered how sildenafil acts within your body to help you solve your problems with erectile dysfunction?  Thanks to the instant availability of the Internet and computer devices, you will now be able to learn about ED and sildenafil citrate online right at your fingertips.

If you are curious as to how PDE5 inhibitors such as sildenafil work inside your body, then you can browse on search engines by simply typing in the search box the words sildenafil citrate online.  When you read about the mechanics of the action of sildenafil citrate online, you will learn that it helps protect the enzyme cGMP (short for cyclic guanosine monophosphate) from being degraded by the cGMP-specific PDE5 (short for phosphodiesterase type 5 enzyme) which are evidently located in the penile corpus cavernosum of men.  The free radical NO (short for nitric oxide) found in the penile corpus cavernosum adheres itself to what are called the guanylate cyclase receptors, which then results to the occurrence of elevated amounts of cGMP, thereby leading to the vasodilation or relaxation of the smooth muscles of the inner lining cushions of the helicine arteries (tendril-like arteries of the penis importantly involved in the process of its erection).  Once the smooth muscles relax, it will result to vasodilation and therefore there will be an increased supply of blood flowing into the penile spongy tissue, and the end result would be a successful penile erection.

Additionally, what you would also learn about sildenafil citrate online is that its special molecular makeup is somewhat similar to cGMP (located in the penile corpus cavernosum as well) and functions as an aggressive binding element of PDE5 in the penile corpus cavernosum, which results to more concentrations of cGMP and even better occurrences of erections. Avery important information that men will learn through reading about sildenafil citrate online is that sildenafil will be rendered useless without the introduction of one or more sexual stimuli, since only a sexual stimulus will be the only factor that can initiate the activation of the nitric oxide and cGMP inside a man’s body. Read more…

How Canadian doctors can volunteer to help in Haiti

Reading the terrible stories and seeing the horrific photos from Haiti in the aftermath of the January 12 earthquake has inspired some Canadian doctors to consider donating more than just money: many want to travel to Haiti and put their medical expertise to use. How to go about doing that, however, is not simple. To help you figure it out, we spoke to some aid agencies to learn how Canadian physicians can volunteer to help in Haiti.

Médecins sans frontières (Doctors Without Borders): MSF may be the first aid organization that comes to mind but, partly because of its high profile, MSF has a large contingent of experienced physicians who’ve already been sent to Haiti. That doesn’t mean, however, that your offer to volunteer isn’t welcome. In fact, MSF is compiling a database of Canadian medical professionals who are available to help in Haiti.

They are looking for French- or Creole-speaking doctors (particularly orthopedic surgeons) with some international experience and a minimum of four weeks available. Shorter deployments aren’t possible. MSF is also looking to reestablish a free obstetrics clinic it ran in Haiti prior to the quake, for which it will need French-speaking ob/gyns.

But even if you don’t meet MSF’s criteria for deployment at the moment, you’re encouraged nevertheless to sign on to help out in the future, since MSF anticipates being in Haiti for years and years to come. “You don’t have to be there when Anderson Cooper's there,” Ben Chapman, the organization’s director of human resources in Canada, says. “We will still need people there when the journalists have gone away.” (800) 982-7903;

Partners in Health: This Boston-based medical aid organization is one of the most respected aid organizations in Haiti. And just because they’re an American outfit doesn’t mean they won’t take Canadians. They will. Eagerly.

In fact, Canadians may be at an advantage securing a spot with PIH compared to Americans, since the organization is currently only accepting French-speaking physicians to travel to Haiti – and preferably Creole-speaking, though that is not required.

Their urgent needs at the moment include orthopedic surgeons, but other specialists are in demand, and PIH’s long-term needs will include physicians of all kinds. At the moment, PIH asks that volunteers commit to a minimum of 10 days in Haiti. Volunteers who sign on now likely wouldn’t be deployed until anywhere up to a month from now. (617) 432-5256; http://standwithhaiti.org/haiti/news-entry/update-on-volunteer-request/

Médecins du monde: The Canadian branch of this organization has put out an urgent call for physician volunteers to travel to Haiti. They are currently looking for French- or Creole-speaking GPs, emergency physicians and general surgeons to work there for a minimum of two weeks. (514) 281-8998;

The UK office has also posted a request for volunteers at

Canadian Red Cross: The Canadian Red Cross does not send volunteer physicians to Haiti. If doctors want to work with the Canadian Red Cross there, they must apply to become a medical delegate and, after a week-long training course, could be placed on a emergency-respond rapid deployment team.

For more international volunteer listings, visit ReliefWeb’s Haiti vacancies page at


This article was originally published by Doctor's Review magazine. to read more from Doctor's Review about medical volunteering.


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IN THE NEWS: Is fee-for-service billing outdated?

Is fee-for-service billing outdated?
In a new "Mythbusters" entry, the Canadian Health Services Research Foundation dismisses the notion that most Canadian doctors prefer to be paid fee-for-service. The foundation's analysis points to blended models of remuneration -- incorporating salaried work, capitation and some fee-for-service payments -- as the future of physicians' income. [CHSRF]

Patients get email advice
The Canadian Medical Association typically gives advice to its members: doctors. But it's branched out a bit with a new project to give guidance to patients on how best to communicate with their doctors via email. Among the pieces of advice are: keep it short, be clear, don't send attachments without permission, and "do not discuss more than one subject per email."

IN THE NEWS: Government loses appeal to close Insite

Government loses appeal to close Insite
The BC Court of Appeal rejected the federal government's appeal of a lower court's decision that Ottawa has no power to shut down the Vancouver supervised-injection site Insite.

The judges' reasoning relied on a complex and sure-to-be-divisive argument about weighing provincial jurisdiction over health matters versus federal jurisdiction over law enforcement.

The federal government has not yet said whether or not it will appeal to the BC Supreme Court.

New Alberta health minister jumps into action
Gene Zwozdesky was selected to replace Rockin' Ron Liepert as Alberta's health minister in a recent cabinet shuffle, and Mr Zwozdesky has not hesitated in getting involved in the province's healthcare disputes.

He quickly ordered planned bed closures halted [CTV News] and made comments that prompted speculation he might dismiss Alberta Health Services CEO Stephen Duckett, though the new minister denied that he planned to do so.

Mr Liepert has been assigned to head the energy ministry -- certainly not a demotion from the health portfolio -- so it's unlikely that Mr Liepert's approach to health systems management is being repudiated in this cabinet shuffle.

MORE NEWS FROM ACROSS CANADA

  • An Alberta government commission report suggested revising the province's Health Act to protect patients' rights. The report included some obliquely coded language about privatizing services, but members of the commission claimed the suggested revisions still conform to the Canada Health Act.
  • Last month, a non-doctor was elected president of the College of Physicians and Surgeons of Alberta for the first time ever. "Having a public member as president sends the signal that we act on behalf of the public," said registrar Dr Trevor Theman. The Calgary Herald wrote that it may be the first time a non-doctor was elected to head any province's medical regulatory body.
  • The licence approving the weight-loss drug sibutramine was suspended in the UK over concerns about dangerous cardiovascular side effects, and new warnings were added to the drug in the United States. Sibutramine is still available in Canada, where it is sold as Meridia and Apo-Sibutramine. A Health Canada review investigating cardiovascular side effects in 2003 declared the drug safe for use. [Health Canada review]

Photo: Vancouver Coastal Health