Warung Bebas

Sabtu, 02 Februari 2013

I Gede Wenten, Pencipta Alat Penjernih Air Pertama di Dunia

Espilen Blog – I Gede Wenten, salah seorang lulusan Institut Teknologi Bandung (ITB) menciptakan sebuah alat penjernih air pertama di dunia. Alat ini dapat berfungsi untuk menjernihkan air-air yang kotor seperti air cucian, air mandi, bahkan hingga air banjir. Hebatnya, alat ini tidak membutuhkan listrik dan kimia, hanya diputar alat ini langsung bekerja dan air yang dihasilkan pun langsung jernih dan bersih, layak untuk diminum.

Alat ini sendiri terbuat dari Membran Hollow Fiber Ultrafiltrasi. Menurut I Gede Wenten, air yang dihasilkan dari sterilisasi alat ini aman, karena sudah teruji secara laboratorium. Alat ini juga mampu menghilangkan bakteri yang terdapat pada air.

Dulu, I Gede Wenten pernah mengirimkan alat ini ke Aceh sewaktu terjadinya bencana Tsunami pada tahun 2004. Alat ini juga sudah dipakai di pabrik-pabrik. Bahkan, alat ini sudah diakui oleh dunia.

Semoga karya anak bangsa ini dapat bermanfaat, tidak tersia-siakan, dan bisa mengharumkan nama Indonesia di luar negeri. Aamiin.

Why Do We Eat? A Neurobiological Perspective. Part V

In previous posts, I explained that food intake is determined by a variety of factors that are detected by the brain, and integrated by circuits in the mesolimbic system to determine the overall motivation to eat.  These factors include 'homeostatic factors' that reflect a true energy need by the body, and 'non-homeostatic factors' that are independent of the body's energy needs (e.g. palatability, habit, and the social environment).

In this post, we'll explore the hedonic system, which governs pleasure.  This includes the pleasure associated with food, called palatability.  The palatability of food is one of the factors that determines food intake.

The Hedonic System

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The Story of CPRIT, Part 1: A Promising Start

HC Renewal readers who don’t live in Texas may not have followed the saga of the Cancer Prevention & Research Institute of Texas (CPRIT). It’s a fascinating story which will take me more than one post to tell even a partial version of, especially since a wealth of information is available because of FOIA requests and the superb reporting of the Houston Chronicle and The Cancer Letter.

A constitutional amendment authorizing CPRIT was proposed to the voters in November 2007. (In Texas, lots of things that could be passed legislatively elsewhere require amending the constitution, so that it’s now a very long document indeed.) With a pot of money second only to the NIH’s (up to $300 million in bonds per year was authorized for 10 years for a total of $3 billion), its ambitious goal was to make progress against cancer while making Texas a real leader in cancer research. Enabling legislation was passed and the institute got off to a good start in 2009 by putting together a leadership team that included Nobel prize winner Alfred Gilman as Chief Scientific Officer and Phillip Sharp (another Nobel prize winner) as head of its Scientific Review Council. The press release announcing Sharp’s appointment stated:
Research and prevention grant applications will be assessed using an external- to-Texas peer review process. . . . [P]olicies and processes [are being formalized] that will ensure CPRIT funds only the best scientific research and prevention projects, measures its success and shares results on progress so that Texas will lead the nation as a model for cancer research and prevention programs.

The process was formalized; and the 2009 Policies and Procedures Guide has a diagram showing that grants were supposed to be submitted electronically, be triaged for merit, and (if they survived initial triage) first go through scientific peer review, then go through commercialization review for business worthiness (only if they were translational projects), be recommended for funding, and then be submitted for review and final funding approval by the CPRIT Oversight Committee (cf. State Audit report, Appendix 5).

Peer review teams of eminent out-of-state scientists were put together, the process got going, and projects deemed worthy by the Scientific Review Council were routinely approved by CPRIT’s Oversight Committee, a group of political appointees plus the Attorney General and the State Comptroller. CPRIT money helped attract some eminent researchers to the state

But then, it all fell apart.

Dr. Gilman, the Nobel laureate who had set up the scientific review process, submitted a letter of resignation in May 2012, effective the following October. In his resignation letter, he stated that he would like “to prevent further award of vast funds for research programs ostensibly within incubators that were not described and therefore could not have been reviewed.”

The grant that he refers to and that had upset him so mightily was a large one-year combined award approved in March for an incubator at Rice University and for MD Anderson’s Institute for Applied Cancer Science.  

Why was he so upset about this particular award? More on that in the next installment.

A Condemnation of Suppression of Medical Research... by Ben Goldacre in the New York Times

Amazingly, this topic now seems to be in the mainstream.

The Goldacre Version in the New York Times in 2013

In his op-ed, Ben Goldacre introduced it thus:

the entire evidence base for medicine has been undermined by a casual lack of transparency. Sometimes this is through a failure to report concerns raised by doctors and internal analyses, as was the case with Johnson & Johnson. More commonly, it involves the suppression of clinical trial results, especially when they show a drug is no good.

He noted that this problems was supposed to be fixed by the registration of clinical trials, and by changes in editorial policies at medical journals:

many in the industry now claim it has been fixed. But every intervention has been full of loopholes, none has been competently implemented and, lastly, with no routine public audit, flaws have taken years to emerge.

 The Food and Drug Administration Amendments Act of 2007 is the most widely cited fix. It required that new clinical trials conducted in the United States post summaries of their results at clinicaltrials.gov within a year of completion, or face a fine of $10,000 a day.  But in 2012, the British Medical Journal published the first open audit of the process, which found that four out of five trials covered by the legislation had ignored the reporting requirements. Amazingly, no fine has yet been levied. 

An earlier fake fix dates from 2005, when the International Committee of Medical Journal Editors made an announcement: their members would never again publish any clinical trial unless its existence had been declared on a publicly accessible registry before the trial began. The reasoning was simple: if everyone registered their trials at the beginning, we could easily spot which results were withheld; and since everyone wants to publish in prominent academic journals, these editors had the perfect carrot. Once again, everyone assumed the problem had been fixed. 

But four years later we discovered, in a paper from The Journal of the American Medical Association, that the editors had broken their promise: more than half of all trials published in leading journals still weren’t properly registered, and a quarter weren’t registered at all. 

Goldacre's conclusions were:

Withholding data not only misleads doctors and patients; it’s an insult to the patients who have participated in clinical trials, believing that they were helping to improve medical knowledge. 

Medicine routinely overcomes enormous technical challenges, and there is nothing complicated about the changes needed to prevent Johnson & Johnson, or Roche — or anybody — from withholding information.

Hear, hear!

Our Version, Starting in 2003

Note that 10 years ago, in 2003, in my article on American health care dysfunction that could have been only published in Europe, (Poses RM. A cautionary tale: the dysfunction of American health care. Eur J Intern Med 2003 Mar;14(2):123-130.  Link here)  I noted that an important cause of this dysfunction is that:

the scientific basis of medicine is increasingly under attack.

The integrity of medical research has been violated by the deliberate suppression of its results.

At that time, I suggested one solution would be:

Medical schools and universities must re-affirm their support of scholarly work in the spirit of free enquiry,...

Furthermore, in one of our first posts on Health Care Renewal in December, 2004, in the context of the discovery of internal company documents (in this case, from Eli Lilly) that showed that information about the adverse effects of a drug (in this case, increased aggression associated with fluoxetine, that is, Prozac), we wrote,

The increasingly complex story of suppression of SSRI research seems to be part of a growing epidemic of suppression of medical research.
Let's say it again. Withholding data from clinical research is unethical because:
1. it breaks the promise to research subjects that their voluntary participation has scientific or social value, but undisseminated research has no value; (See Emanuel EJ et al. What makes clinical research ethical? JAMA 2000; 283: 2701-2711.)
2. it impedes scientific progress;
3. it prevents patients from receiving the best possible medical care.
But until this unethical behavior starts having negative consequences for its perpetrators, the epidemic of research suppression is likely to continue. 

Note the similarity to what Goldacre published in the Times yesterday.  You heard it here first.

Summary
To date we have published 102 posts with the label "suppression of medical research."  Obviously, Ben Goldacre's NY Times op-ed shows that suppression of research still rarely leads to negative consequences for its perpetrators.  Obviously, by making drugs, devices, and other health care interventions appear safer and more effective than they really are, suppression of medical research has lead to huge revenues for health care corporations, and has made many health care executives exceedingly rich, and many of the health care professionals and academic leaders who have enabled or implemented research suppression somewhat rich.  In the face of such perverse incentives, until we end the impunity of those who suppress medical research (and by the way, those who authorize, direct, or implement all sorts of other unethical, criminal and corrupt behavior we discuss on Health Care Renewal) things will not get better.  I can only hope that having this subject appear in a New York Times op-ed may lead to some real progress.

ADDENDUM (2 February, 2013) - see also comments on 1BoringOldMan blog. 

The problem with (NOT) giving medical advice in the Incestral Health Community

Just about every major blogger and guru in the IHC has a lengthy medical disclaimer page.  They are not providing medical advice on the internet because if they are an MD it's illegal (my understanding of the law, feel free to correct me if I'm wrong here),  and if they are not, it's illegal to practice without a license.  Same goes for nutritional advice and all that.  

Right after the medical disclaimer, where you've usually been given the "I have no special training in what I'm about to convey" spiel, or, the flipside, the disclaimer is signed with a name and a litany of letters after it.  And from time to time, you get nothing more than a telling of someone's story on how they cured themselves.  The IHC is big on this.  One of the more recent trends in the IHC is the promotion of ketogenic diets for curing cancer.  I consider this to be wholly irresponsible unless there is a focus on using the diet in conjunction with medical therapies that have been proven effective.  I don't see enough of that in this community, rather too much of the opposite of doctor bashing.  
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