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Showing posts with label health news. Show all posts
Showing posts with label health news. Show all posts

Saturday, August 13, 2011


Researchers have found a potential new treatment for thousands of asthma patients who experience a 'late phase' of symptoms several hours after exposure to allergens, causing breathing difficulties which can last up to 24 hours.

In research on mice and rats, scientists from Imperial College London have now found evidence that the late asthmatic response happens because the allergen triggers sensory nerves in the airways.

These nerves activate reflexes, which trigger other nerves that release the neurotransmitter acetylcholine, which causes the airways to narrow. If the findings translate to humans, it would mean that drugs that block acetylcholine - called anticholinergics - could be used to treat asthma patients that experience late phase responses following exposure to allergens.

"Many asthmatics have symptoms at night after exposure to allergens during the day, but until now we haven't understood how this late response is brought about," said Professor Maria Belvisi, from the National Heart and Lung Institute at Imperial College London, who led the research.
"Our study in animals suggests that anticholinergic drugs might help to alleviate these symptoms, and this is supported by the recent clinical data. We are seeking funding to see if these findings are reproduced in proof of concept clinical studies in asthmatics."

The researchers hypothesised that sensory nerves were involved after observing that anaesthesia prevented the late asthmatic response in mice and rats. They succeeded in blocking the late asthmatic response using drugs that block different aspects of sensory nerve cell function, adding further evidence for this idea.

The study has been published in the journal Thorax.

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BONELA blasts GUS over ARVs for foreign inmates

Speaking in Parliament, Matlhabaphiri defended government's stance not to provide foreign inmates with ARV drugs, saying it is costly to do so as inmates find such drugs unavailable in their home countries after returning there, which happens quite often.
However, BONELA maintains that there is lack of political will by the Botswana government regarding this issue.
The Director of BONELA, Uyapo Ndadi, said: "the comments by Matlhabaphiri are both careless and callous as they reflect not only the position of government on this population, but on all people living with HIV.  The response to HIV/AIDS calls for progressive leadership that will think outside the box. Clearly, there is need for transformational leadership if we are to overcome the challenges posed by the HIV and AIDS epidemic in Botswana and achieve our goal of zero new infections by 2016."
Ndadi said that earlier this year, the National AIDS Council was informed that a comprehensive feasibility study was being undertaken by the National AIDS Coordinating Agency (NACA), the Ministry of Health, Ministry of Defence and Security and other partners to inform HIV interventions targeting prisoners.
"As an organisation, we are now worried that perhaps this was lip-service as a decision has seemingly been made on the fate of HIV positive foreign inmates.
"In our opinion, the study would highlight the number of foreign prisoners in need of ARV treatment, as well as a computation of the costs involved in providing treatment of opportunistic infections (OI) vis-a-vis provision of ARVs, (considering that Botswana is using generic drugs that are even cheaper to procure) and the implications thereof," said Ndadi.
In the absence of such evidence, Ndadi said the Minister's assertion was uninformed, misleading and a mere fallacy.
"It costs about P180 to provide ARVs to an individual in a month, and clearly the benefits of saving a human life, preventing infection and re-infection of citizens overwhelms this paltry amount," Ndadi said.
BONELA said treating OIs, may prove more costly to Botswana as there will be a continuous need to treat the same or different OIs.  Further, BONELA said, treating OIs does not address HIV, which is the underlying factor as HIV will continue damaging the immune system of inmates in the absence of antiretroviral therapy (ART).
"Of note is the threat of tuberculosis (TB) in a prison setting.  Whilst treatment is provided for TB, the latter will be infectious prior to treatment as well as two weeks after commencement of the treatment.  Government is better off providing treatment to foreign inmates because once they get TB - which is an airborne disease - they will still be in a position to infect Batswana inmates.
Eventually, Government will end up treating the whole prison, instead of an individual, as many OIs are highly infectious," said Ndadi.
He said the argumen that some inmates originate from countries where there are no ARVs is fallacious.
 "Which countries are those and who said their fortunes will not change?  Furthermore, inmates once out can fend for themselves.  It is better to be sent to your country fit and healthy than dead or terminally ill," the BONELA chief said.
In view of the above, BONELA questions the appointment of Botswana to the United Nations Human Rights Council if it can just look on whilst foreign prisoners waste away because of HIV while in Botswana prisons.
If indeed the concern is in relation to the cost, Botswana can engage external countries she has bilateral relations with through the joint United Nations Programme on HIV and AIDS (UNAIDS), Southern African Development Community (SADC) and World Health Organisation (WHO) to provide treatment to save lives, whilst a viable solution is sought, BONELA said.
As a human rights organisation, BONELA said they find it baffling that a health official can be so insensitive to the plight of an HIV positive person in any setting, especially when the whole world is calling for human rights as the only approach to universal access to prevention, treatment, care and support.
This is because any HIV and AIDS initiative that is not deeply entrenched in human rights fundamentals will not succeed, said BONELA.
BONELA said there is evidence that a human rights approach to HIV/AIDS will reduce HIV transmission rates as it acknowledges the differences among human beings that make them vulnerable to HIV infection. Such interventions therefore, will ensure that attention in terms of prevention is afforded to those most at risk of contracting and transmitting HIV. 

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Why women have fewer heart attacks: Oestrogen protects against blocked arteries Read more: http://www.dailymail.co.uk/health/article-2025008/Why-women-fewer-heart-attacks-Oestrogen-protects-heart-disease.html#ixzz1UtVntlTB


The sex hormone oestrogen protects women from heart attacks and may explain why they are far less likely to be struck down than men, claim scientists.
Around one in five men in Britain die from a heart attack, compared to just one in seven women.

They have discovered that this naturally-occurring chemical helps stop blood cells sticking to the walls of arteries and forming potentially fatal blockages.

Researchers from Queen Mary at the University of London think their findings  may explain why women are far more likely to suffer heart attacks after the menopause, when their oestrogen levels decline.

Around one in five men in Britain die from a heart attack, compared to just one in seven women.

But while very few women suffer heart attacks before their 50s, the risk suddenly increases after the menopause when they are just as likely to be struck down than men.

Until recently experts have struggled to explain why younger women are less likely to develop heart disease and suffer heart attacks.

Now research published in the journal Arteriosclerosis, Thrombosis and Vascular Biology claims that the hormone oestrogen may protect them.

But experts say their findings do not necessarily mean that oestrogen could  ever be used in drugs to prevent heart disease. 



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Indian-origin doctor in UK charged with sexual assault

An Indian-origin doctor is facing charges before Britain's regulator, the General Medical Council, of assaulting patients sexually while working as a anaesthetist at a clinic in Manchester.

Narendra Sharma abused and molested patients during abortions, according to co-workers who testified during the hearing.

The charge against Sharma was that while being employed  at the Marie Stopes (International) Clinic in Manchester, Sharma acted toward three patients in a manner that was indecent and sexually motivated and thereby abused his professional position.

He allegedly used the hands of sedated patients to perform obscene acts on himself during abortion procedures. 


Dr. Sharma faced an allegation of misconduct after two medical workers gave statements against him. One staff member said she saw Sharma take a woman's left hand and move it under the operating table during an abortion procedure.

Healthcare workers also made allegations against the doctor.

The hearing is going on, and Sharma's record on the GMC register shows that he is suspended. Sharma gained his medical qualifications from Poona University in 1980.
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