Mipomersen – antisense technology to lower LDL cholesterol

Homozygous familial hypercholesterolaemia is a rare genetic disorder in which both LDL-receptor alleles are defective, resulting in very high concentrations of LDL cholesterol in plasma and premature coronary artery disease. This study investigated the use of an antisense inhibitor of apolipoprotein B synthesis, mipomersen, to lower LDL cholesterol.

Patients aged 12 years and older who were already receiving the maximum tolerated dose of a lipid-lowering drug, were randomly assigned to mipomersen 200 mg subcutaneously every week or placebo for 26 weeks.

34 patients were assigned to mipomersen and 17 to placebo. Mean concentrations of LDL cholesterol at baseline were 11·4 mmol/L in the mipomersen group and 10·4 mmol/L in the placebo group. The mean percentage change in LDL cholesterol concentration was significantly greater with mipomersen (?24·7%) than with placebo (?3·3%).

The most common adverse events were injection-site reactions in 76% of patients in mipomersen group vs 24% in placebo group. 12% of patients in the mipomersen group had increases in alanine aminotransferase of three times or more the upper limit of normal.

Inhibition of apolipoprotein B synthesis by mipomersen represents a novel, effective therapy to reduce LDL cholesterol concentrations in patients with homozygous familial hypercholesterolaemia who are already receiving lipid-lowering drugs, including high-dose statins.

References:
Mipomersen, an apolipoprotein B synthesis inhibitor, for lowering of LDL cholesterol concentrations in patients with homozygous familial hypercholesterolaemia: a randomised, double-blind, placebo-controlled trial. The Lancet, Volume 375, Issue 9719, Pages 998 - 1006, 20 March 2010.

Lipoprotein structure (chylomicron) (left). Image source: Wikipedia, GNU Free Documentation License.

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Acupuncture can spread serious diseases: bacterial infections, hepatitis B and C, even HIV

To prevent infections transmitted by acupuncture, infection control measures should be implemented, such as use of disposable needles, skin disinfection procedures and aseptic techniques.

Acupuncture may be risky as needles are inserted up to several centimeters beneath the skin. In the 1970s and 1980s most infections associated with acupuncture were sporadic cases involving pyogenic bacteria.

There is a new syndrome - acupuncture mycobacteriosis - infection caused by mycobacteria that rapidly grow around the acupuncture insertion point as a result of contaminated cotton wool swabs, towels and hot-pack covers. There is a long incubation period and the infection usually leads to large abscesses and ulcers.

References:

Image source: Needles being inserted into a patient's skin, Wikipedia, public domain.

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"Europeans Work to Live and Americans Live to Work" But Who is Happier?

Americans work 50% more than the Germans, the French and the Italians. Americans may work more than Europeans because of domestic tax rates - there are lower tax rates in the US than in Europe, and hence working more pays off more in the US. In other words, working longer hours pays off more in the US than in Europe.

This study compares the working hours and life satisfaction of Americans and Europeans using the World Values Survey, Eurobarometer and General Social Survey.

The purpose is to explore the relationship between working hours and happiness in Europe and America. Is it possible that working more makes Americans happier than Europeans?

The findings suggest that Americans may be happier working more because they believe more than Europeans do that hard work is associated with success.

References:
Europeans Work to Live and Americans Live to Work (Who is Happy to Work More: Americans or Europeans?). Adam Okulicz-Kozaryn. Journal of Happiness Studies, 2010.

Image source: Wikipedia, GNU Free Documentation License.

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29 Debates About the "Right Way" to Blog

ProBlogger collected 29 Debates Bloggers Have about Blogging. Some of my responses are listed below, see ProBlogger's site for the complete list. Please share your thoughts in the comments.

RSS Feeds - Full vs Partial Feeds
- My opinion: Full feed.

Comment Sections – Comments vs No Comments
- Comments always open.

Post Frequency – Post More vs Post Less
- Short posts daily.
How Many Blogs? – Focus upon One Single Blog vs Having Many Smaller Blogs.
- I have 3-4 blogs.

Domain Names – long vs short, hyphens vs non hypens, .com vs other extensions (like .net, .org), local vs global domain extensions
- Short names, free domain names by Blogger.com.

Hosting – hosted vs self hosted
- Hosted by Blogger.com.

Post Titles – descriptive vs keywords
- I use natural language post titles - descriptive.

Content – Link content vs Original content
- Mostly links and comments, I wish I had more time to write lomg-form original content.

Design – Professional Design vs Templates
- I modify the templates to create my "own" designs. It's quite enjoyable actually.

Ownership – Use Social Media vs Build Your own properties
- I think your blog should be your "home" on the web.

Post Length – Long in Depth Posts vs Short, Sharp Posts
- Again, I wish I had the time to write long posts but I don't.

Topic – Niche vs Broad Topics
- Niche topic blogs work better.

Blogger Name – Anonymous blogging vs Using Your Name
- Using your name is a much better approach for medical bloggers.

Subscribers – RSS is Best vs Email is Best
- I like RSS better.

SEO – Writing for Search Engines vs Writing for Humans
- I write for humans only.

Personal Blogging – Sticking to Topic vs Injecting Personality and Personal details
- I try to write objectively from a scientific perspective. Personal stories are probably better suited for a paper diary.

Comment Moderation – Highly Regulated and Moderated vs Anything Goes
- I moderate all comments and delete all self-promotional and possibly offensive material.

Social Media vs Search – focus upon social media rather than search engines as traffic sources
- If you write quality content, Google will find you.

LinkBait – Anything goes (e.g.. Personal Attacks) vs Strong Boundaries Around What is and Isn’t Acceptable
- I don't use link baits and I have never posted anything even close to a personal attack on my blogs.

Bloggers Participation in Comments – Respond to Every Single Comment vs Let Readers Talk to Each Other and Don’t Interact
- I don't feel compelled to respond to every single comment. Let readers interact.

This Google video shows that it takes about 2 minutes to start a blog on Blogger.com. Creating a web site has never been easier.

References:
29 Debates Bloggers Have about Blogging. ProBlogger, 2010.

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Johns Hopkins Medicine podcast now has a blog

The weekly podcast by Johns Hopkins Medicine now has a blog hosted for free at Blogger.com by Google:

http://hopkinspodblog.blogspot.com

I have been a regular listener for years and have found the podcast to be both educational and enjoyable - not a common combination.

The weekly podcast looks at the top medical stories of the week for people who want to become informed participants in their own health care. The presenters are Elizabeth Tracey, director of electronic media for Johns Hopkins Medicine, and Rick Lange M.D., professor of medicine at Johns Hopkins and vice chairman of medicine at the University of Texas Health Science Center at San Antonio.

Image source: Johns Hopkins

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Are doctors ready for virtual visits? Telemedicine may not be accurate enough.

Are Doctors Ready for Virtual Visits? Many fear telemedicine will jeopardize the doctor-patient bond. NYT http://bit.ly/7c2RA8

Telemedicine has a place for second opinion when initiated by a physician but primary assessment is more problematic. One successful example of telemedicine is Cleveland Clinic's second opinion service for physicians abroad. For reference, please see our blog post from a few years ago: Cleveland Clinic Offers a Second Opinion Online for $565 http://bit.ly/4NQyer

The accuracy of teledermatology was inferior to real-life clinic dermatology for melanoma diagnosis http://bit.ly/8A4oiu.

Embedded video from CNN Video

CNN Video: Doctor will see you now -- on Webcam. Telemedicine takes a new turn. Now you can see the doctor while you shop, as CNN's Elizabeth Cohen reports.

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Eradication of nasal colonization with S. aureus associated with a decrease in postoperative surgical-site infections

Nasal carriers of Staphylococcus aureus are at increased risk for health care–associated infections with this organism.
Eradication of colonization with S. aureus by screening at admission and subsequent decolonization (with intranasal mupirocin and chlorhexidine skin washes) were associated with a decrease in postoperative surgical-site infections.
In a randomized, double-blind, placebo-controlled trial, S. aureus nasal carriers were treated with mupirocin nasal ointment and chlorhexidine soap.
A total of 6771 patients were screened on admission, 1270 nasal swabs from 1251 patients were positive for S. aureus. All the S. aureus strains identified on PCR assay were susceptible to methicillin and mupirocin.
The rate of S. aureus infection was 3.4% in the mupirocin–chlorhexidine group, as compared with 7.7% in the placebo group (relative risk of infection, 0.42). The effect of mupirocin–chlorhexidine treatment was most pronounced for deep surgical-site infections (relative risk, 0.21).
References:

Preventing Surgical-Site Infections in Nasal Carriers of Staphylococcus aureus. NEJM, 1/2009.
GIANTmicrobes in Toys & Games section of Amazon.com http://goo.gl/gMrf

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Martina Navratilova Fighting Breast Cancer – ABC Video

In February 2010, the tennis legend was diagnosed with an aggressive form of ductal carcinoma in situ (DCIS), considered the earliest form of breast cancer. Navratilova had a lumpectomy in February, during which her doctors determined that the cancer had not spread to her lymph nodes. She says there is only a "very small chance of it coming back."

Navratilova's cancer was diagnosed during a routine mammogram, after not having one for four years, and she hopes that speaking out will inspire other women to get mammograms.

"The reason I wanted to speak about this is to encourage these woman to have mammograms," she said. "I just want to encourage women to have that yearly check-up."

References:
Martina Navratilova Fighting Breast Cancer

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How does clinical evidence work?

Ben Goldacre's Moment of Genius on BBC4 radio:

"Clinical trials in medicine are designed to be free from bias. They test, as objectively as possible, the effectiveness of a particular intervention.
When you bring the results of all these individual trials together, however, how do you weigh up what evidence is relevant and what is not? In 1993, a method of "systematic review" was introduced that enables us to get the clearest possible view of the evidence."

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How To: Getting Smart During Your Daily Commute

"The average American spends a good 100 minutes per day commuting to and from work. That amounts to about 433 hours per year! Now imagine using that time to learn something new — to read a great book, to take a class from a top university, to learn a new language.

We highlight our free audio resources that will maximize your drive time. Before getting started, make sure you have a big mp3 player and a way to listen to your mp3 player over your car speakers."

References:
Getting Smart During Your Daily Commute | Open Culture

Related:

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Scaring physicians aways from using social media

Is there a doctor who wants to spend 3 hours per day on social media while running the risk of being sued?

This useful critical review by a freelance journalist at the NEJMJobs site has a focus on some of the litigation risks inherent to the use of social media in healthcare:

http://www.nejmjobs.org/career-resources/social-media-and-physicians.aspx

"Dr. Pho, who spends up to three hours a day in social media activities, is surely in a minority of physicians who devote considerable time to blogging, Twittering, or engaging in Facebook updates.

Social Media Activity Risks Difficult to Predict

Despite the potential professional benefits of social networking participation, some physicians are approaching the social media realm with trepidation, for fear that personal and professional presences will overlap in a manner that increases liability exposure.

That’s a valid concern, because the medico-legal aspect of social media activities has been little explored and is not well understood. In addition, the obvious risks of incurring HIPAA violations should patients’ health information be unwittingly exposed are a deterrent. “The laws haven’t caught up with social media and networking, so to be safe I don’t blog about my patients,” Dr. Pho said. “Even though I think that interesting or challenging cases can be used as a learning tool, too much of my professional livelihood is at stake.”

None of the physicians interviewed for this article have accepted patients’ requests to become Facebook friends, and all cited concerns that doing so would “cross the boundary” between a personal and professional relationship.

"I think that very few doctors are interacting with patients directly on Facebook because we’re so terrified of being accused of practicing medicine and getting sued. Whatever you type is eternal and a perfect record of whatever you said,” she said. “That makes it all even more scary.”

“We’re concerned about this because there have been instances in which physicians have used Facebook in an inappropriate manner,” said David Troxel, MD, The Doctors Company’s medical director. “Social media networks are not HIPAA compliant and are just not appropriate for any physician-patient communication, so it’s a real liability threat because it’s so easy to lapse into a casual conversation.”

The NEJMJobs article linked in the paragraph above does not discuss the use of social media for medical education of students, residents and patients.

Another area that was not highlighted enough was the widespread use of Facebook "fan pages" by hospitals and physicians to attract patients and create relationships. Does this mean that the patients can be "your fans" but not "your friends"?

Overall, this article is a good review of some of the risks involved with the social media adoption in healthcare.

However, for a more nuanced approach to social media use by physicians, please review this detailed primer by the cardiologist Dr. Wes:

http://drwes.blogspot.com/2010/03/for-cardiologists-twitter-primer.html

Related:
Facebook Friend Request - A young doctor gets a message from a dying patient - NYTimes, 2010.

Image source: OpenClipArt.org, public domain.

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Serotonin Blocker May Build New Bone in Osteoporotic Mice by Decreasing GI Serotonin Levels

From WebMD:

When investigators treated mice with an experimental drug that stopped the gut from synthesizing serotonin, they were able to reverse severe bone loss and essentially cure osteoporosis in the animals.

Serotonin May Hold Key to Halting Osteoporosis. NatureVideoChannel — February 05, 2010 — A drug that reverses osteoporosis in mice looks like a promising candidate for treating the human version of the disease. Gerard Karsenty and his colleagues at Columbia University Medical Center have shown that blocking the neurotransmitter serotonin--secreted from the gut--promotes bone growth. The research appears on-line at http://www.nature.com/naturemedicine - Yadav et al. Nature Medicine, 7 February 2010. DOI: 10.1038/nm.2098.

Most bone treatments work to block bone loss and make existing bone stronger. One drug, Forteo (teriparatide), does build new bone, but it requires daily injections and is limited to two years of use.

References:
Serotonin May Be a Key to Treat Osteoporosis. WebMD.

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The two current heavyweight world boxing champions both have PhDs, believe or not

Believe or not, but the two current heavyweight world boxing champions both have PhDs... The two researchers are the Ukrainian heavyweight boxers and brothers Wladimir and Vitali Klitschko.

Wladimir Klitschko, called "Dr. Steel Hammer"(born 25 March 1976, Semipalatinsk, Kazakhstan), currently holds the IBF, WBO, IBO and Ring Magazine world heavyweight titles. His older brother, Vitali Klitschko, is the current WBC world heavyweight champion.
In the summer of 1996, Klitschko finished Pereyaslav-Khmelnitsky Pedagogical Institute (Ukraine) and was accepted in the postgraduate study program of Kiev University. On 18 January 2001 in a conference hall of Kiev University of physical science and sports, Klitschko presented his doctoral dissertation and was awarded a Ph.D. in Sports Science. Klitschko speaks four languages: Ukrainian, Russian, German and English.
Image source: Wikipedia, GNU Free Documentation License.
Vitali Klitschko, called "Dr. Ironfist", (born 19 July 1971 in Belovodsk, Kirghiz SSR, Soviet Union (now Kyrgyzstan) is a Ukrainian professional heavyweight boxer and the current WBC world heavyweight champion. He has the highest knockout percentage (94.9%) of any heavyweight boxing champion in overall fights.
Vitali is the first professional boxing world champion to hold a Ph.D. In 1996, he graduated from the Pereyaslav-Khmelnytsky Pedagogical Institute (Ukraine) and was accepted into the postgraduate study program at Kiev University. On 29 February 2000, he presented his doctoral thesis on "talent and sponsorship in sports" at the Kiev University of Physical Science and Sports, and his Ph.D. in Sports Science was conferred.
Image source: Wikipedia, GNU Free Documentation License.

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Non-surgical Baldness Treatments Rated Ineffective by Most Patients

Only 27% of men who used Propecia (finasteride) said it was “very” effective. Finasteride is a 5-alpha reductase inhibitor used to treat prostate enlargement symptoms and baldness. Finasteride has 2 trade names: Propecia for baldness and Proscar for BPH.

Over-the-counter minoxidil (Rogaine) is applied directly to the scalp and is the only hair regrowth drug approved for use by women. Just 4% of respondents said it was very effective, with 43% of users saying it was not effective at all.

Only 2% of men surveyed underwent hair transplants; but of these, 49% were either very or completely satisfied with the results of their surgery, the poll shows.

Image source: Finasteride, Wikipedia, public domain.
Comments from Facebook:
"Ah...so you are supposed to rub it on the scalp.. I've been drinking it all these years, no wonder it has had no effect"

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2 in 3 people with known risk factors for COPD don’t know they have the disease

One in five heavy smokers over age 40 have findings of COPD, but only one-third have been previously diagnosed with the common lung disease.

10% of people worldwide over the age of 40 are affected by COPD.

Researchers screened 1,003 people aged 40 and over who were current or former heavy smokers. Heavy smoking was defined as a smoking history of 20 pack-years or more.

The results showed that 20.7% of the people screened met the criteria for a diagnosis of COPD but only 32.7% had previously been diagnosed with the disease or were aware of their COPD diagnosis.

References:
Many Unaware They Have COPD. WebMD.
Image source: Lungs, Wikipedia, public domain.

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"With UpToDate, students and interns may be as capable of teaching the resident (or attending) as visa versa"

From Wachter's World:

"In 1984, one resident even wrote a letter to the New England Journal of Medicine called “Ripping and Filing Journal Articles,” taking the Journal to task for its habit of beginning an article on the back of the last page of the previous one (which meant the page needed to be photocopied if you wanted to tear both articles out of your personal copy of the journal). Fair point, but talk about a resident who needed to get a life.

Today, as in so many other parts of our lives, the computer, with its magical access to the universe of on-line resources, has democratized the learning of clinical medicine. At UCSF, by the time morning rolls around, the students and interns have often already read the on-line UpToDate synopsis of the topic at hand, and may be as capable of teaching the resident (or attending) about it as visa versa."

Note: UpToDate is a peer reviewed medical information resource (paid, not free access) published by a medical company called UpToDate, Inc. It is available both via the Internet and offline. An update is published every four months. The material is written by over 3600 clinicians and has over 7300 topics. The website was launched in 1992 by Dr. Burton D. Rose along with Dr. Joseph Rush. A new online subscription for 1 year costs $495, $195 for trainees (source: Wikipedia).

References:
Substituting Coffee Cake for Journal Articles: Another Unforeseen Consequence of IT. Wachter's World.

Image source: UpToDate.

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Tai Chi and Cardiac Rehabilitation – Mayo Clinic Video

For hundreds of years people have practiced the Chinese martial art of Tai Chi for its many health benefits. Researchers who study Tai Chi say it can help reduce blood pressure, decrease anxiety, improve flexibility and much more. For these reasons, some doctors at Mayo Clinic have embraced Tai Chi and are teaching it to their patients.

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