It is usually BIG PHARMA who stands accused of being less than honest with the evidence, particularly when it runs against commercial interests; and the allegations prove to be correct with depressing regularity. In alternative medicine, commercial interests exist too, but there is usually much less money at stake. So, a common assumption is that conflicts of interest are less relevant in alternative medicine. Like so many assumptions in this area, this notion is clearly and demonstrably erroneous.
The sums of money are definitely smaller, but non-commercial conflicts of interest are potentially more important than the commercial ones. I am thinking of the quasi-religious beliefs that are so very prevalent in alternative medicine. Belief can move mountains, they say – it can surely delude people and make them do the most extraordinary things. Belief can transform advocates of alternative medicine into ‘ALCHEMISTS OF ALTERNATIVE EVIDENCE’ who turn negative/unfavourable into positive/favourable evidence.
The alchemists’ ‘tricks of the trade’ are often the same as used by BIG PHARMA; they include:
- drawing conclusions which are not supported by the data
- designing studies such that they will inevitably generate a favourable result
- cherry-picking the evidence
- hiding unfavourable findings
- publishing favourable results multiple times
- submitting data-sets to multiple statistical tests until a positive result emerges
- defaming scientists who publish unfavourable findings
- bribing experts
- prettify data
- falsifying data
As I said, these methods, albeit despicable, are well-known to pseudoscientists in all fields of inquiry. To assume that they are unknown in alternative medicine is naïve and unrealistic, as many of my previous posts confirm.
In addition to these ubiquitous ‘standard’ methods of scientific misconduct and fraud, there are a few techniques which are more or less unique to and typical for the alchemists of alternative medicine. In the following parts of this series of articles, I will try to explain these methods in more detail.
Steve Scrutton is a UK homeopath on a mission; he seems to want to promote homeopathy at all cost – so much so that he recently ran into trouble with the ASA for breaching CAP Code (Edition 12) rules 3.1 and 3.3 (Misleading advertising), 3.7 (Substantiation) and 12.1, 12.2 and 12.6 (Medicines, medical devices, health-related products and beauty products). Scrutton happens to be a Director of the ‘ALLIANCE OF REGISTERED HOMEOPATHS’ (ARH) which represents nearly 700 homeopaths in the UK. On one of his websites, he promotes homeopathy as a treatment and prevention for measles:
Many homeopaths feel that it is better for children, who are otherwise healthy, to contract measles naturally. Homeopathy is less concerned with doing this as it has remedies to treat measles, especially if it persists, or become severe.Other homeopaths will use the measles nosode, Morbillinum, for prevention.Homeopaths have been treating measles for over 200 years with success.
The main remedies used for the condition, according to Scrutton, are the following: Aconite, Belladonna, Gelsemium, Euphrasia, Bryonia, Pulsatilla, Kali Bich, Sulphur, Apis Mel or Arsenicum – depending on the exact set of presenting symptoms.
At the very end of this revealing post, Scrutton makes the following statement: To my knowledge, there have been no RCTs conducted on either the prevention or treatment of Measles with Homeopathy. However, homeopaths have been treating Measles safely and effectively since the early 19th Century, and through many serious epidemics throughout the world.
Why would anyone write such dangerous nonsense, particularly in the position of a director of the ARH? There can, in my view be only one answer: he must be seriously deluded and bar any knowledge what sound medical evidence looks like. One of his articles seems to confirm this suspicion; in 2008, Scrutton wrote: What ‘scientific’ medicine does not like about homeopathy is not the lack of an evidence base – it is the ability to help people get well – and perhaps even more important, we can do it safely.
Intriguingly, the ARH has a code of ethics which states that members must not claim or imply, orally or in writing, to be able to cure any named disease and that they should be aware of the extent and limits of their clinical skills.
Could it be that a director of the ARH violates his own code of ethics?
I am sure, we have all heard it hundreds of times: THERE ARE IMPORTANT LINKS BETWEEN OUR DIET AND CERTAIN CANCERS. The evidence for this statement seems fairly compelling. Yet it also is complex and often confusing.
A recent review, for instance, suggested that fruits (particularly citrus) and vegetable consumption may be beneficial in the primary prevention of pancreatic cancer, the consumption of whole grains has been shown to reduce the risk and fortification of whole grains with folate may confer further protection. Red meat, cooked at high temperatures, should be avoided, and replaced with poultry or fish. Total fat should be reduced. The use of curcumin and other flavonoids should be encouraged in the diet. Another equally recent review, however, indicated that there is no conclusive evidence as an independent risk factor for isolated nutrients versus adoption of dietary patterns for cancer risk. Cancer colon risk derived from meat intake is influenced by both total intake and its frequency. The interaction of phenolic compounds on metabolic and signalling pathways seems to exert an inhibitory effect on cell proliferation and tumor metastasis and induces apoptosis in various types of cancer cells, including colon, lung, prostate, hepatocellular or breast cancer. A third recent review concluded that cruciferous vegetable intake protects against cancer of the colon, while a forth review suggested that the Mediterranean dietary pattern and diets composed largely of vegetables, fruit, fish, and soy are associated with a decreased risk of breast cancer. There was no evidence of an association between traditional dietary patterns and risk of breast cancer.
Not least based on these mixed messages from the scientific literature, an entire industry has developed selling uncounted alternative cancer-diets and dietary supplements to desperate patients and consumers. They promise much more than just cancer prevention, in fact, leave little doubt about the notion that cancer might be curable by diet. Here are just a few quotes from the thousands of websites promoting alternative cancer diets:
- The Ketogenic Diet is believed capable of starving cancer cells to death, and thus capable of restricting tumour development.
- a more alkaline body makes it difficult for tumors to grow.
- Budwig diet: This diet was developed by Dr. Johanna Budwig who was nominated for the noble Prize sixth times. The diet is intended as a preventative as well as an alternative cancer treatment.
- the Gerson Therapy naturally reactivates your body’s magnificent ability to heal itself – with no damaging side effects. This a powerful, natural treatment boosts the body’s own immune system to heal cancer, arthritis, heart disease, allergies, and many other degenerative diseases. Dr. Max Gerson developed the Gerson Therapy in the 1930s, initially as a treatment for his own debilitating migraines, and eventually as a treatment for degenerative diseases such as skin tuberculosis, diabetes and, most famously, cancer.
- the concept of macrobiotics is much more than an alternative diet for cancer, or any other illness, but rather the ancient Chinese belief that all life, indeed the whole universe, is a balance of two opposing forces Yin and Yang.
Confused? Yes, I do worry how many cancer patients listen to these claims and pin their hopes on one of these diets. But what exactly does the evidence tell us about them?
A German team of researchers evaluated the following alternative cancer-diets: raw vegetables and fruits, alkaline diet, macrobiotics, Gerson’s regime, Budwig’s and low carbohydrate or ketogenic diet. Their extensive searches of the published literature failed to find clinical evidence supporting any of the diets. Furthermore, case reports and pre-clinical data pointed to the potential harm of some of these diets. The authors concluded that considering the lack of evidence of benefits from cancer diets and potential harm by malnutrition, oncologists should engage more in counselling cancer patients on such diets.
In other words, alternative cancer diets – and I mean not just the ones mentioned above, but all of them – are not supported by good evidence for efficacy as a treatment or prevention of any type of cancer. In addition, they might also cause harm.
What follows is obvious: cancer patients should take sound nutritional advice and adopt a healthy general life-style. But they should run a mile as soon as anyone suggests an alternative dietary cure for their disease.
There is not a discussion about homeopathy where an apologist would eventually state: HOMEOPATHY CANNOT BE A PLACEBO, BECAUSE IT WORKS IN ANIMALS!!! Those who are not well-versed in this subject tend to be impressed, and the argument has won many consumers over to the dark side, I am sure. But is it really correct?
The short answer to this question is NO.
Pavlov discovered the phenomenon of ‘conditioning’ in animals, and ‘conditioning’ is considered to be a major part of the placebo-response. So, depending on the circumstances, animals do respond to placebo (my dog, for instance, used to go into a distinct depressive mood when he saw me packing a suitcase).
Then there is the fact that the animal’s response might be less important than the owner’s reaction to homeopathic treatment. This is particularly important with pets, of course. Homeopathy-believing pet owners might over-interpret the pet’s response and report that the homeopathic remedy has worked wonders when, in fact, it has made no difference.
Finally, there may be some situations where neither of the above two phenomena can play a decisive role. Homeopaths like to cite studies where entire herds of cows were treated homeopathically to prevent mastitis, a common problem in milk-cows. It is unlikely that conditioning or wishful thinking of the owner are decisive in such a study. Let’s see whether homeopathy-promoters will also be fond of this new study of exactly this subject.
New Zealand vets compared clinical and bacteriological cure rates of clinical mastitis following treatment with either antimicrobials or homeopathic preparations. They used 7 spring-calving herds from the Waikato region of New Zealand to source cases of clinical mastitis (n=263 glands) during the first 90 days following calving. Duplicate milk samples were collected for bacteriology from each clinically infected gland at diagnosis and 25 (SD 5.3) days after the initial treatment. Affected glands were treated with either an antimicrobial formulation or a homeopathic remedy. Generalised linear models with binomial error distribution and logit link were used to analyse the proportion of cows that presented clinical treatment cures and the proportion of glands that were classified as bacteriological cures, based on initial and post-treatment milk samples.
The results show that the mean cumulative incidence of clinical mastitis was 7% (range 2-13% across herds) of cows. Streptococcus uberis was the most common pathogen isolated from culture-positive samples from affected glands (140/209; 67%). The clinical cure rate was higher for cows treated with antimicrobials (107/113; 95%) than for cows treated with homeopathic remedies (72/114; 63%) (p<0.001) based on the observance of clinical signs following initial treatment. Across all pathogen types bacteriological cure rate at gland level was higher for those cows treated with antimicrobials (75/102; 74%) than for those treated with a homeopathic preparation (39/107; 36%) (p<0.001).
The authors conclude that homeopathic remedies had significantly lower clinical and bacteriological cure rates compared with antimicrobials when used to treat post-calving clinical mastitis where S. uberis was the most common pathogen. The proportion of cows that needed retreatment was significantly higher for the homeopathic treated cows. This, combined with lower bacteriological cure rates, has implications for duration of infection, individual cow somatic cell count, costs associated with treatment and animal welfare.
Yes, I know, this is just one single study, and we need to consider the totality of the reliable evidence. Currently, there are 203 clinical trials of homeopathic treatments of animals; and they are being reviewed at the very moment (unfortunately by a team that is not known for its objective stance on homeopathy). So, we will have to wait and see. When, in 1999, A. Vickers reviewed all per-clinical studies, including those on animals, he concluded that there is a lack of independent replication of any pre-clinical research in homoeopathy. In the few instances where a research team has set out to replicate the work of another, either the results were negative or the methodology was questionable.
All this is to say that, until truly convincing evidence to the contrary is available, the homeopaths’ argument ‘HOMEOPATHY CANNOT BE A PLACEBO, BECAUSE IT WORKS IN ANIMALS!!!’ is, in my view, as weak as the dilution of their remedies.
Chiropractors are notorious for their overuse and misuse of x-rays for non-specific back and neck pain as well as other conditions. A recent study from the US has shown that the rate of spine radiographs within 5 days of an initial patient visit to a chiropractor is 204 per 1000 new patient examinations. Considering that X-rays are not usually necessary for patients with non-specific back pain, such rates are far too high. Therefore, a team of US/Canadian researchers conducted a study to evaluate the impact of web-based dissemination of a diagnostic imaging guideline discouraging the use of spine x-rays among chiropractors.
They disseminated an imaging guideline online in April 2008. Administrative claims data were extracted between January 2006 and December 2010. Segmented regression analysis with autoregressive error was used to estimate the impact of guideline recommendations on the rate of spine x-rays. Sensitivity analysis considered the effect of two additional quality improvement strategies, a policy change and an education intervention.
The results show a significant change in the level of spine x-ray ordering weeks after introduction of the guidelines (-0.01; 95% confidence interval=-0.01, -0.002; p=.01), but no change in trend of the regression lines. The monthly mean rate of spine x-rays within 5 days of initial visit per new patient exams decreased by 10 per 1000, a 5.26% relative decrease after guideline dissemination.
The authors concluded that Web-based guideline dissemination was associated with an immediate reduction in spine x-ray claims. Sensitivity analysis suggests our results are robust. This passive strategy is likely cost-effective in a chiropractic network setting.
These findings are encouraging because they suggest that at least some chiropractors are capable of learning, even if this means altering their practice against their financial interests – after all, there is money to be earned with x-ray investigations! At the same time, the results indicate that, despite sound evidence, chiropractors still order far too many x-rays for non-specific back pain. I am not aware of any recent UK data on chiropractic x-ray usage, but judging from old evidence, it might be very high.
It would be interesting to know why chiropractors order spinal x-rays for patients with non-specific back pain or other conditions. A likely answer is that they need them for the diagnosis of spinal ‘subluxations’. To cite just one of thousands of chiropractors with the same opinion: spinography is a necessary part of the chiropractic examination. Detailed analysis of spinographic film and motion x-ray studies helps facilitate a specific and timely correction of vertebral subluxation by the Doctor of Chiropractic. The correction of a vertebral subluxation is called: Adjustment.
This, of course, merely highlights the futility of this practice: despite the fact that the concept is still deeply engrained in the teaching of chiropractic, ‘subluxation’ is a mystical entity or dogma which “is similar to the Santa Claus construct”, characterised by a “significant lack of evidence to fulfil the basic criteria of causation”. But even if chiropractic ‘subluxation’ were real, it would not be diagnosable with spinal x-ray investigations.
The inescapable conclusion from all this, I believe, is that the sooner chiropractors abandon their over-use of x-ray studies, the better for us all.
Continuing on the theme from my previous post, a website of a homeopath (and member of the UK ‘Society of Homeopaths’) caught my attention. In in it, Neil Spence makes a wide range of far-reaching statements. Because they seem rather typical of the claims made by homeopaths, I intent to scrutinize them in this post. For clarity, I put the (unaltered and unabbreviated) text from Neil Spence’s site in italics, while my own comments are in Roman print.
The holistic model of health says all disease comes from a disturbance in the vitality (life force) of the body. The energetic disturbance creates symptoms in the mind, the emotions and the physical body. Each patient has their own store of how this disturbance in vitality came about and each person has individual symptoms.
What is a ‘holistic model of health’, I wonder? Holism in health care means to treat patients as whole individuals which is a hallmark of any good health care; this means that all good medicine is holistic.
Holism and vitalism are two separate things entirely. Vitalism is the obsolete notion of a vital force or energy that determines our health. ‘Disturbances in vitality’ are not the cause of illness.
We will attempt, as far as possible, to treat the whole person and to change the conditions that created your susceptibility to cancer.
Much of the susceptibility to cancer is genetically determined and cannot be altered homeopathically.
Using Homeopathy to treat people with cancer
Homeopathic treatment can help someone with cancer. It can also be helpful for people who have a history of cancer in their family or have cared for a relative or friend with cancer. There are a number of methods of using homeopathic remedies to help people with cancer.
There is no good evidence that homeopathic remedies are effective for cancer patients or their carers.
Constitutional treatment: Treat the person who suffers the illness. A constitutional homeopathic remedy suits your nature as a person and its symptom picture reflects the unique expression of your symptoms. It can arouse the bodyʼs natural ability to heal itself and this can have profound benefits. It is appropriate if your vitality is strong.
There is no evidence that constitutional homeopathic treatments increase the body’s self-healing ability.
Stimulate the immune system to fight cancer: Remedies can be used to help the body fight the cancer, using specific homeopathic remedies called nosodes. A second treatment may be used to support the weakened organ. This method is most useful for people who are not using chemotherapy or radiotherapy.
There is no evidence that nosodes or other homeopathic remedies have any effect on the immune system ( – if they did, they would be contra-indicated for people suffering from auto-immune diseases).
Support the failing organs and the functions of the body that are not working: Remedies can be used to support weakened organs; to help with appetite; to help sleep and to treat sleep disturbances; to reduce the toxic symptoms; to help the body eliminate toxins. These treatments are helpful to people undergoing chemotherapy or radiotherapy.
For none of these claims is there good evidence; they are pure fantasy. The notion that homeopathy can help eliminate toxins is so wide-spread that it merits a further comment. It would be easy to measure such a detoxifying effect, but there is no evidence that it exists. Moreover, I would question whether, in the particular situation of a cancer patient on chemotherapy, a hastened elimination of the toxin (= chemotherapeutic agent) would be desirable; it would merely diminish the efficacy of the chemotherapy and reduce the chances of a cure.
Treat the pain: Homeopathic remedies can be very effective in aiding pain control. Remedies such as calendula can be effective in situations of intractable pain. If the cancer is at the terminal stage, remedies can be used to increase the quality of life. These remedies are palliative and can assist the patient keep mentally and emotionally alert so they can have quality time with loved ones.
Where is the evidence? Pain can obviously be a serious problem for cancer patients, and the notion that calendula in homeopathic dilutions reduces pain such that it significantly improves quality of life is laughable. Conventional medicine has powerful drugs to alleviate cancer pain but even they sometimes do not suffice to make patients pain-free.
Homeopathy in conjunction with other therapies
When a patient chooses to use chemotherapy or radiotherapy to treat their cancer the homeopath will prescribe remedies to support the body and ease the side-effects. Remedies can also be very useful after surgery to encourage the body to heal and allow greater mobility at an early stage.
Again no good evidence exists to support these claims – pure fantasy.
Other therapies can complement homeopathy but the homeopath will advise that you do not use every therapy just because they are available. It may be better to choose two or perhaps three main approaches to improving your health and ensure each one has positive effects that suit you very well.
Is he saying that cancer patients are best advised to listen to a homeopath rather than to their oncology-team? Is he encouraging them to not use all possible mainstream options available? If so, he is most irresponsible.
Each person will have different needs. It is always appropriate to change your diet. Nutritional and dietary advice is of the utmost importance to support the bodyʼs healing process. Cancer has many symptoms of disturbed metabolism and a poor diet has often contributed to the disturbance in the body that allowed the cancer to flourish. It is essential to remedy this situation. Nutritional advice puts you back in charge of your body; with good homeopathic treatments this provides the basis for improving your health.
Dietary advice can be useful and is therefore routinely provided by professionals who understand this subject much better than the average homeopath.
The thought that some cancer patients might be following such recommendations is most disturbing. Advice of this nature has doubtlessly the potential to significantly shorten the life and decrease the well-being of cancer patients. People who recommend treatments that clearly harm vulnerable patients are charlatans who should not be allowed to treat patients.
Many dietary supplements are heavily promoted for the prevention of chronic diseases, including cardiovascular disease (CVD) and cancer. But do they actually work or are they just raising false hopes? The evidence on this subject is confusing and proponents of both camps produce data which seemingly support their claims. In this situation, we need an independent analysis of the totality of the evidence to guide us. And one such review has just become available
The purpose of this article was to systematically review evidence for the use of multivitamins or single nutrients and functionally related nutrient pairs for the primary prevention of CVD and cancer in the general population.
The authors searched 5 databases to identify literature that was published between 2005 and January 29, 2013. They also examined the references from the previous reviews and other relevant articles to identify additional studies. In addition, they searched Web sites of government agencies and other organizations for grey literature. Two investigators independently reviewed identified abstracts and full-text articles against a set of a priori inclusion and quality criteria. One investigator abstracted data into an evidence table and a second investigator checked these data. The researchers then qualitatively and quantitatively synthesized the results for 4 key questions and grouped the included studies by study supplement. Finally, they conducted meta-analyses using Mantel-Haenzel fixed effects models for overall cancer incidence, CVD incidence, and all-cause mortality.
103 articles representing 26 unique studies met the inclusion criteria. Very few studies examined the use of multivitamin supplements. Two trials showed a protective effect against cancer in men; only one of these trials included women and found no effect. No effects of treatment were seen on CVD or all-cause mortality.
Beta-carotene showed a negative effect on lung cancer incidence and mortality among individuals at high risk for lung cancer at baseline (i.e., smokers and asbestos-exposed workers); this effect was persistent even when combined with vitamin A or E. Trials of vitamin E supplementation showed mixed results and altogether had no overall effect on cancer, CVD, or all-cause mortality. Only one of two studies included selenium trials showed a beneficial effect for colorectal and prostate cancer; however, this trial had a small sample size. The few studies addressing folic acid, vitamin C, and vitamin A showed no effect on CVD, cancer, and mortality. Vitamin D and/or calcium supplementation also showed no overall effect on CVD, cancer, and mortality. Harms were infrequently reported and aside from limited paradoxical effects for some supplements, were not considered serious.
The authors’ conclusion are less than encouraging: there are a limited number of trials examining the effects of dietary supplements on the primary prevention of CVD and cancer; the majority showed no effect in healthy populations. Clinical heterogeneity of included studies limits generalizability of results to the general primary care population. Results from trials in at-risk populations discourage additional studies for particular supplements (e.g., beta-carotene); however, future research in general primary care populations and on other supplements is required to address research gaps.
A brand-new RCT provides further information, specifically on the question whether oral multivitamins are effective for the secondary prevention of cardiovascular events. In total, 1708 patients aged 50 years or older who had myocardial infarction (MI) at least 6 weeks earlier with elevated serum creatinine levels were randomly assigned to an oral, 28-component, high-dose multivitamin and multi-mineral mixture or placebo. The primary end point was time to death, recurrent MI, stroke, coronary revascularization, or hospitalization for angina. Median follow-up was 55 months. Patients received treatments for a median of 31 months in the vitamin group and 35 months in the placebo group. 76% and 76% patients in the vitamin and placebo groups completed at least 1 year of oral therapy, and 47% and 50% patients completed at least 3 years. Totals of 46% and 46% patients in both groups discontinued the vitamin regimen, and 17% of patients withdrew from the study.
The primary end point occurred in 27% patients in the vitamin group and 30% in the placebo group. No evidence suggested harm from vitamin therapy in any category of adverse events. The authors of this RCT concluded that high-dose oral multivitamins and multiminerals did not statistically significantly reduce cardiovascular events in patients after MI who received standard medications. However, this conclusion is tempered by the nonadherence rate.
These findings are sobering and in stark contrast to what the multi-billion dollar supplement industry promotes. The misinformation in this area is monumental. Here is what one site advertises for heart disease:
Vitamin C could be helpful, limit dosage to 100 to 500 mg a day.
Vitamin E works better with CoQ10 to reduce inflammation in heart disease. Limit vitamin E to maximum 30 to 200 units a few times a week. Use a natural vitamin E complex rather than synthetic products.
CoQ10 may be helpful in heart disease, especially in combination with vitamin E. I would recommend limiting the dosage of Coenzyme Q10 to 30 mg daily or 50 mg three or four times a week.
Curcumin protects rat heart tissue against damage from low oxygen supply, and the protective effect could be attributed to its antioxidant properties. Curcumin is derived from turmeric, which is often used in curries.
Garlic could be an effective treatment for lowering cholesterol and triglyceride levels for patients with a history or risk of cardiovascular disease, especially as a long term strategy.
Terminalia arjuna, an Indian medicinal plant, has been reported to have beneficial effects in patients with ischemic heart disease in a number of small studies. Arjuna has been tested in angina and could help reduce chest pain.
Magnesium is a mineral that could help some individuals. It is reasonable to encourage diets high in magnesium as a potential means to lower the risk of coronary heart disease.
Danshen used in China for heart conditions.
And in the area of cancer, the choice is even more wide and audacious as this web-site for example demonstrates.
So, the picture that emerges from all this seems fairly clear. Despite thousands of claims to the contrary, dietary supplements are useless in preventing cardiovascular diseases or cancer. All they do produce, I am afraid, is rather expensive urine.
Advocates of alternative medicine are incredibly fond of supporting their claims with anecdotes, or ‘case-reports’ as they are officially called. There is no question, case-reports can be informative and important, but we need to be aware of their limitations.
A recent case-report from the US might illustrated this nicely. It described a 65-year-old male patient who had had MS for 20 years when he decided to get treated with Chinese scalp acupuncture. The motor area, sensory area, foot motor and sensory area, balance area, hearing and dizziness area, and tremor area were stimulated once a week for 10 weeks, then once a month for 6 further sessions.
After the 16 treatments, the patient showed remarkable improvements. He was able to stand and walk without any problems. The numbness and tingling in his limbs did not bother him anymore. He had more energy and had not experienced incontinence of urine or dizziness after the first treatment. He was able to return to work full time. Now the patient has been in remission for 26 months.
The authors of this case-report conclude that Chinese scalp acupuncture can be a very effective treatment for patients with MS. Chinese scalp acupuncture holds the potential to expand treatment options for MS in both conventional and complementary or integrative therapies. It can not only relieve symptoms, increase the patient’s quality of life, and slow and reverse the progression of physical disability but also reduce the number of relapses and help patients.
There is absolutely nothing wrong with case-reports; on the contrary, they can provide extremely valuable pointers for further research. If they relate to adverse effects, they can give us crucial information about the risks associated with treatments. Nobody would ever argue that case-reports are useless, and that is why most medical journals regularly publish such papers. But they are valuable only, if one is aware of their limitations. Medicine finally started to make swift progress, ~150 years ago, when we gave up attributing undue importance to anecdotes, began to doubt established wisdom and started testing it scientifically.
Conclusions such as the ones drawn above are not just odd, they are misleading to the point of being dangerous. A reasonable conclusion might have been that this case of a MS-patient is interesting and should be followed-up through further observations. If these then seem to confirm the positive outcome, one might consider conducting a clinical trial. If this study proves to yield encouraging findings, one might eventually draw the conclusions which the present authors drew from their single case.
To jump at conclusions in the way the authors did, is neither justified nor responsible. It is unjustified because case-reports never lend themselves to such generalisations. And it is irresponsible because desperate patients, who often fail to understand the limitations of case-reports and tend to believe things that have been published in medical journals, might act on these words. This, in turn, would raise false hopes or might even lead to patients forfeiting those treatments that are evidence-based.
It is high time, I think, that proponents of alternative medicine give up their love-affair with anecdotes and join the rest of the health care professions in the 21st century.
Web-sites have become a leading source of information on health matters. This is particularly true in the realm of alternative medicine. Conventional health care professionals often know too little about this subject to advise their patients, and alternative practitioners are usually too biased to be trusted. So many consumers turn to the Internet and hope that it offers information which is reliable. But is it?
American pharmacists published a study evaluating the quality of on-line information on herbal supplements. They conducted a search of 13 common herbals – including black cohosh, echinacea, garlic, ginkgo, ginseng, green tea, kava, saw palmetto, and St John’s wort – and reviewed the top 50 Web sites for each using a Google search. Subsequently, they analysed clinical claims, warnings, and other safety information.
A total of 1179 Web sites were examined in this way. Less than 8% of retail sites provided information regarding potential adverse effects, drug interactions, and other safety information; only 10.5% recommended consultation with a healthcare professional. Less than 3% cited scientific literature to support their claims.
The authors’ conclusions were worrying: Key safety information is still lacking from many online sources of herbal information. Certain nonretail site types may be more reliable, but physicians and other healthcare professionals should be aware of the variable quality of these sites to help patients make more informed decisions.
Having conducted my fair share of similar research (e.g. here or here or here or here), I can only concur with these conclusions. When it comes to health care, the Internet is a scary place! In the realm of alternative medicine, it is dominated by people who seem not to care much about anything other than their profits.
But what can be done to change this situation? How can we protect the public from Internet-charlatans? How can one control the Internet? I wish I knew! But there are nevertheless means of directing consumers to those sites which do offer reliable information. Kite-marking high quality sites might be one way of achieving this. This task would, of course, be huge and difficult, but in the interest of public safety, governments and other official institutions should consider tackling it.
One of the perks of researching alternative medicine and writing a blog about it is that one rarely runs out of good laughs. In perfect accordance with ERNST’S LAW, I have recently been entertained, amused, even thrilled by a flurry of ad hominem attacks most of which are true knee-slappers. I would like to take this occasion to thank my assailants for their fantasy and tenacity. Most days, these ad hominem attacks really do make my day.
I can only hope they will continue to make my days a little more joyous. My fear, however, is that they might, one day, run out of material. Even today, their claims are somewhat repetitive:
- I am not qualified
- I only speak tosh
- I do not understand science
- I never did any ‘real’ research
- Exeter Uni fired me
- I have been caught red-handed (not quite sure at what)
- I am on BIG PHARMA’s payroll
- I faked my research papers
Come on, you feeble-minded fantasists must be able to do better! Isn’t it time to bring something new?
Yes, I know, innovation is not an easy task. The best ad hominem attacks are, of course, always based on a kernel of truth. In that respect, the ones that have been repeated ad nauseam are sadly wanting. Therefore I have decided to provide all would-be attackers with some true and relevant facts from my life. These should enable them to invent further myths and use them as ammunition against me.
Sounds like fun? Here we go:
Both my grandfather and my father were both doctors
This part of my family history could be spun in all sorts of intriguing ways. For instance, one could make up a nice story about how I, even as a child, was brain-washed to defend the medical profession at all cost from the onslaught of non-medical healers.
Our family physician was a prominent homeopath
Ahhhh, did he perhaps mistreat me and start me off on my crusade against homeopathy? Surely, there must be a nice ad hominem attack in here!
I studied psychology at Munich but did not finish it
Did I give up psychology because I discovered a manic obsession or other character flaw deeply hidden in my soul?
I then studied medicine (also in Munich) and made a MD thesis in the area of blood clotting
No doubt this is pure invention. Where are the proofs of my qualifications? Are the data in my thesis real or invented?
My 1st job as a junior doctor was in a homeopathic hospital in Munich
Yes, but why did I leave? Surely they found out about me and fired me.
I had hands on training in several forms of alternative medicine, including homeopathy
Easy to say, but where are the proofs?
I moved to London where I worked in St George’s Hospital conducting research in blood rheology
Another invention? Where are the published papers to document this?
I went back to Munich university where I continued this line of research and was awarded a PhD
Another thesis? Again with dodgy data? Where can one see this document?
I became Professor Rehabilitation Medicine first at Hannover Medical School and later in Vienna
How did that happen? Did I perhaps bribe the appointment panels?
In 1993, I was appointed to the Chair in Complementary Medicine at Exeter university
Yes, we all know that; but why did I not direct my efforts towards promoting alternative medicine?
In Exeter, together with a team of ~20 colleagues, we published > 1000 papers on alternative medicine, more than anyone else in that field
Impossible! This number clearly shows that many of these articles are fakes or plagiaries.
My H-Index is currently >80
Same as above.
In 2012, I became Emeritus Professor of the University of Exeter
Isn’t ’emeritus’ the Latin word for ‘dishonourable discharge’?
I HOPE I CAN RELY ON ALL OF MY AD HOMINEM ATTACKERS TO USE THIS INFORMATION AND RENDER THE ASSAULTS MORE DIVERSE, REAL AND INTERESTING.