Articles

Author Archive

Food Allergies: Facts, Myths, and Pseudoscience

The price of life is eternal vigilance. If you have severe food allergies, that is your reality. Every day, every meal, every bite. Eating is an intrinsic and essential part of what we do and who we are, so the idea that our bodies can rebel violently to everyday foods can be difficult to believe. But it’s real, and the numbers of the severely food allergic are growing. Frustratingly, we don’t know why. While recognized over 100 years ago, the social acknowledgment had lagged. That’s improved in the past decade. Food allergy prevention approaches are now a routine part of travel, school, sports, and the workplace. Peanuts on planes seem to have completely disappeared. The days of lunchbox peanut butter sandwiches are over, with many schools completely banning all peanut-containing products. It is the education system that seems to have become a ground zero for allergy programs and policies, where educators are challenged to ensure that schools are safe environments for all children, some of whom have long lists of food allergies. (more…)

Posted in: Science and Medicine

Leave a Comment (148) →

The Trojan Horse called Integrative Medicine arrives at another medical school

Trojan Rabbit

Medicine is a collaborative practice. Hospitals are the best example, where dozens of different health professionals work cooperatively, sharing responsibilities for patient care. Teamwork is essential, and that’s why health professionals obtain a large part of their education on the job, in teaching (academic) hospitals. The only way that all of these different professions are able to work together effectively is that their foundations are based on an important, yet simple, principle. All of us have education and training grounded in basic scientific principles of medicine. Biochemistry, pharmacology, physiology – we all work from within the same framework. As a pharmacist, my role might include working with physicians and nurses to manage and monitor medication use. A team approach is only possible when you’re working from the same playbook, and with the same aim. And in medicine, that playbook is science.

That’s why “integrative” medicine frightens me so much. Integrative medicine is a tactic embedding complementary and alternative medical practices into conventional medical care. Imagine “integrating” a practitioner into the health system that doesn’t accept germ theory. Or basic disease definitions. Or the effectiveness of vaccines. Or even basic biochemistry – perhaps they believe in treatments that restore the body’s “vital force” or manipulate some sort of “energy fields”. Instead of relying on objective signs and symptoms, they base treatments on pre-scientific beliefs, long discarded from medicine. There may be entirely different treatment goals, which are potentially antagonistic to the scientific standard. Imagine a hospital or academic setting where this occurs, and the potential impact on the quality of care that is delivered. (more…)

Posted in: Acupuncture, Medical Academia, Science and Medicine, Traditional Chinese Medicine

Leave a Comment (129) →

The facts of the alternative medicine industry

People have been living on earth for about 250,000 years. For the past 5,000 healers have been trying to heal the sick. For all but the past 200, they haven’t been very good at it.

- Dr. Paul Offit

Twenty years is a long time in medicine. I celebrated my 20th pharmacy class reunion last weekend. Of course reunions are time to reflect back to our early years as pharmacists. Lots has changed. Much of the therapeutics I was taught is now obsolete. In 1993, HIV was a death sentence and there were only three, largely ineffective drugs available. Thanks to new drugs, HIV can now be managed like a chronic disease, and some of my colleagues have HIV-focused pharmacy practices. The same dramatic changes have occurred in fields like cancer and transplant medicine. And in some cases, the cause of disease has become more clear – my old textbooks make no mention of Helicobacter pylori as a cause of ulcers.

The practice of pharmacy has changed, too. On the positive side, pharmacists are working in new settings where they can focus on medication management, and not just dispensing prescriptions. Regulators are granting pharmacists the ability to take on new roles, and pharmacists are being compensated for more than simply “count, pour, lick and stick.” From that perspective, it’s a promising time to be a pharmacist. But there’s a much more disturbing side to the profession that’s emerging, too. Community (retail) pharmacy practice is under pricing and competitive pressure, and smaller pharmacies are being subsumed into big retailers where the pharmacy department is buried in the back – a loss leader to bring in patients, but hardly with a health-care focus. And most disturbingly, I see a move within retail pharmacy practice to leverage its professional credibility to sell all types of modern-day snake oil, ranging from detox kits and “cleanses” to dubious “food intolerance” testing. Homeopathic remedies (an elaborate placebo system of sugar pills) are increasingly found on pharmacy shelves, alongside real medicine. And don’t forget the enormous wall of vitamins that seems to get larger and larger. Yes, complementary and alternative medicine is booming, and pharmacy wants its share. Pharmacy regulators turn a blind eye. What do my pharmacy colleagues tell me? They’ll tell me it’s customer demand, and that they don’t recommend the quackery. To me, I see this trend as damaging the credibility of pharmacists in the eyes of the public and of other health professionals. (more…)

Posted in: Book & movie reviews

Leave a Comment (69) →

I’ve been prescribed an antibiotic. Should I take a probiotic?

We are not one organism, we are many organisms. And when we disturb the relationship with our symbiotic partners, we can suffer unpleasant and sometimes life-threatening consequences. One of the most fascinating areas of medical research is the study of how our bodies interact with the the various organisms that we carry around, on us and in us. A focus is the gastrointestinal tract, particularly how the composition and function of those organisms contribute to what we think of as “normal” function, and how they can affect our risk for obesity and disease. My favorite analogy is from SBM’s own Mark Crislip who likened it to a “metaphorical rainforest” giving a vivid mental image of the of the number of species (thousands) in our guts, and the complexity of that ecology. If the gastrointestinal tract is a rainforest, then antibiotics are the metaphorical clear cutters, wiping out some of the normal bacteria, and creating the conditions where unwanted bacteria can grow.

Antibiotics are among the most useful (if not the most useful) classes of drugs in widespread use today. They’re also among the most widely prescribed, and both antibiotic overuse and their addition to animal feed present real dangers to their ongoing effectiveness. Their popularity stems in part from their effectiveness, but also from the perception that they are safe. And, in general, a course of most antibiotics is usually well tolerated. Among the side effects, diarrhea is common (with an incidence of 5% to 39%). It’s due in part to the antibiotic killing off  our normal “good” bacteria, which can significantly change the most prevalent species. In some cases, “bad” bacteria can surge as a result. Clostridium difficile infection is pretty much the worst gastrointestinal consequence of antibiotic therapy. It isn’t just a cause of antibiotic-induced diarrhea, “C. diff” infections are virulent and vicious, spreading easily, especially among hospitalized patients, causing widespread misery and even killing. (more…)

Posted in: Herbs & Supplements

Leave a Comment (38) →

Ask the (Science-Based) Pharmacist: What are the benefits of coffee enemas?

How do you like your coffee? Rectally.

How do you like your coffee? Rectally.

It might not occur to you, sipping your morning coffee, that you could derive tremendous health benefits by simply shooting that coffee directly into your rectum. Yet many people believe this. Suzy Cohen, who calls herself, “America’s Pharmacist™” and also “America’s Most Trusted Pharmacist®” is a proponent. Her syndicated column Ask the Pharmacist recently contained this question and response: (more…)

Posted in: Cancer, History, Naturopathy

Leave a Comment (182) →

Melatonin for sleep disorders – Safe and effective?

It’s summertime, and the living is easy. Forget the solstice. For most of North America, this week is the real start of summer – July 1 in Canada, and July 4 in the USA. Vacation time means breaking out of that those usual routines of work and school. I’m amazed after a few weeks of vacation how much sleep my body will accept if given the opportunity, where it will climb from six to nine hours a night within a week. I try not to change my kids’ habits too much, and one area I’m fairly disciplined with is maintaining a predictable sleep/wake cycle, even when they’re on vacation. I’ve learned, mainly through trial and error, that I suffer the consequences when my own kids don’t get enough sleep, or when their sleep cycle is thrown off. It wasn’t always like this. I remember a period of what felt like years when I had to crawl out of my child’s bedroom on my hands and knees so as to not disturb a child who simply would not fall asleep. And when it finally, mercifully, occurred, it would be a brief respite before the cycle began again. The sleepless nights left us all cranky and exhausted. Admittedly I was fortunate, either due to my successful parenting (but more likely mean reversion) and my kids are pretty good sleepers now. I’m reminded of my good fortune when I speak with exhausted and frustrated parents who have children that cannot sleep and are worried about the causes and consequences of persistent insomnia. As a pharmacist I’m regularly asked about insomnia for both kids and adults as there are a number of over-the-counter products available, and many consumers are understandably apprehensive about seeking out prescription products. Tell someone there’s “natural supplement” for sleep and there’s usually a lot of interest. That’s what I’ve seen with melatonin, a hormone that is sold without a prescription in Canada, the United States, and other countries. It is widely perceived as safe and alternative health purveyors like naturopaths, and even some health professionals, may recommend it for treating sleeping problems in both adults and children. Beyond sleeping, some believe melatonin is a wonder drug with efficacy for diseases ranging from chronic fatigue to cancer to irritable bowel. (more…)

Posted in: Herbs & Supplements, Naturopathy, Science and Medicine

Leave a Comment (44) →

Coenzyme Q10 for heart failure: The hype and the science

Could a product sold as a dietary supplement really be delivering the benefits that advocates have claimed for decades? That’s what you might be wondering about coenzyme Q10, following recent stories like:

What’s caused all the excitement about CoQ10 is the Q-SYMBIO trial, more properly called “The effect of coenzyme Q10 on morbidity and mortality in chronic heart failure”, presented at the European Society of Cardiology conference last month. I’d normally wait for the full article to come out, and will review it if possible at that time, but the results are too interesting to ignore so I’ll dive into the study and the reaction – which is equally as interesting for advocates of science-based medicine. (more…)

Posted in: Clinical Trials, Herbs & Supplements

Leave a Comment (25) →

Kombucha: A symbiotic mix of yeast, bacteria and the naturalistic fallacy

Kombucha

 

If you grew up in the seventies, you may remember the same food fads as I do. There was the oat bran buzz that was replaced by the wheat germ movement, the family fondue set and the homemade yogurt maker. And for a while I remember my father making what I called “aquarium water” – a foul-looking jug sitting on the kitchen counter with a gelatinous white mass floating on top. Despite the assurances it was good for me, I declined the taste tests. They didn’t push it and I never volunteered to drink this “cure all”. I thought kombucha had gone the way of gelatin-based salads and entrees, until a friend told me she was drinking it. Not only is it still a home-brew darling, kombucha isn’t just for hippies: There’s probably some for sale at your local organic grocery. Yet after a bit of digging, kombucha culture still seems mired in the 1970′s. It’s still touted as a panacea, and it’s still one of the more questionable folk remedies out there. (more…)

Posted in: Nutrition

Leave a Comment (117) →

A closer look at vitamin injections

Vitamins are magic. Especially when they’re injected. Roll up the sleeve, find a vein, insert a needle and watch that colourful concoction flow directly into the bloodstream. It may sound somewhat illicit, but that person infusing it is wearing a white coat, and you’re sitting in a chic clinic. There must be something to it, right? Intravenous vitamin injections are popular with celebrities and have even been described by Dr. Oz as “cutting edge”. Advocates claim vitamin injections can benefit serious conditions like cancer, Parkinson’s disease, macular degeneration, fibromyalgia, depression, and that modern-day obsession, “detoxification”. And vitamin infusions aren’t just for the ill. They’re also touted as helpful for preventing illness, too. A search for vitamin injections brings up millions of hits and dozens of advertisements. There is no question that vitamin injections are popular. But despite all the hype and all the endorsements, there is no credible evidence to suggest that routine vitamin infusions are necessary or offer any meaningful health benefit. Vitamin infusions are a marketing creation, giving the illusion you’re doing something for your health, but lacking any demonstrable efficacy. What’s more concerning, providers of vitamin therapies target their marketing at those fighting life-threatening illnesses like cancer, selling unproven treatments in the absence of good scientific evidence that they are beneficial.

The intravenous vitamin industry is a sideshow to science-based health care. Yes, there is an established medical role for injectable vitamins, though it’s no energy-boosting cure-all – they’re used to replace what we should obtain in our diet. As a hospital-based pharmacist I used to prepare sterile bags of total parenteral nutrition (TPN), a mixture of vitamins, carbohydrate, protein and fat that completely replaced the requirement to eat. TPN is effective, but not without risks, and far less preferable than getting your nutrients the old fashioned way – by eating them. There’s also the routine use of injectable vitamins like B12, or iron, all of which can be science-based when used to address true deficiencies, or to manage specific drug toxicities. And there is the therapeutic use of high-dose minerals like intravenous magnesium for acute asthma attacks. But there is no medical justification to infuse vitamins into a vein when you can more appropriately obtain those nutrients in your diet.
(more…)

Posted in: Herbs & Supplements, Naturopathy

Leave a Comment (126) →

Is thyroid replacement a performance-enhancing drug?

Has one physician uncovered the secret to Olympic Gold medals? And is that secret as simple as undiagnosed low thyroid function? That’s the question posed in a recent Wall Street Journal column entitled U.S. Track’s Unconventional Physician. Like the story that Steven Novella described yesterday, this narrative describes the medical practice of Dr. Jeffrey S. Brown, who sees thyroid illness where others see normal thyroid function. He has his critics, but his high-profile athlete patients have won a collective 15 Olympic gold medals. Case closed & Q.E.D.? Not quite. The WSJ actually does a pretty good job questioning the validity of Brown’s claims, which are far removed from the current medical consensus:

In athletic circles, Brown is a medical hero. He’s a paid medical consultant to Nike. The most renowned running coach at Nike, Alberto Salazar, calls Brown the best sports endocrinologist in the world. And athletes in growing numbers are coming to share Brown’s belief that heavy training can suppress the body’s production of the thyroid hormone, leaving them too exhausted to perform at peak. On the wall of the medical office of Jeffrey S. Brown is a photograph of Carl Lewis, the nine-time Olympic gold medalist. Lewis is one of several former or current patients of Brown’s who have climbed the Olympic podium, including Galen Rupp, who won a silver medal in the 10,000 meters at the London Olympics. “The patients I’ve treated have won 15 Olympic gold medals,” said Brown. Among endocrinologists, Brown stands almost alone in believing that endurance athletics can induce early onset of a hormonal imbalance called hypothyroidism, the condition with which he diagnosed Lewis and Rupp. Brown said he knows of no other endocrinologists treating athletes for hypothyroidism, a fatigue-causing condition that typically strikes women middle-aged or older. Several endocrinology leaders had never heard of hypothyroidism striking young athletes.

Now when I read “unconventional” and “stands alone” my skeptical alarm starts ringing. There is no shortage of debate about thyroid disease, ranging from the utter nonsense offered by “alternative health” practitioners to valid scientific discussions about the thresholds where normal function is considered abnormal and subject to treatment. Brown is an endocrinologist, however, and he’s treating elite athletes who are pushing their physical conditioning far beyond that seen by most medical doctors and almost all endocrinologists. So what’s the basis of the concern? The WSJ story goes on to discuss two different issues: What the proper threshold is for thyroid disease, and whether thyroid replacement is performance enhancing.  Let’s take each of these in turn. I’ve covered thyroid diseases and its related pseudoscience before, and a summary of the standard approach is necessary before we look at the some of the broader questions that have emerged from the story. All I know about these patients is what the WSJ is describing, so for the sake of brevity I’m going to focus on the types of cases that Dr. Brown appears to be identifying and ignore other causes of thyroid disease, which would require different treatment approaches.

(more…)

Posted in: Medical Ethics, Science and Medicine

Leave a Comment (29) →
Page 4 of 12 «...23456...»