bias
I have to admit that I came across the ‘ARCIM’ (Academic Research in Complementary and Integrative Medicine) Institute only yesterday when writing the post about Buteyko. Naturally, the institution interested me, and I tried to find out more about it. As pointed out previously, the aim of the ARCIM research institute, founded in 2010, is to research complementary and integrative medicine, in particular anthroposophic medicine, on a scientific basis according to rigorous scientific standards established by the Equator Network criteria (http://www.equator-network.org/).
On the ARCIM’s website we furthermore learn that:
- ARCIM exists since 2010.
- Consists of a team of 8 co-workers.
- Its director is the physician Jan Vagedes.
- Who have published a sizable amount of papers.
- Is funded by the following sponsors: Federal Ministry of Education and Research (BMBF), Mahle-Foundation (Mahle Stiftung), Software AG (Software AG), DAMUS-DONATA e.V.
- Is located in the buildings of the ‘Filderclinic’.
This begs, I think, several questions:
Why is the Federal Ministry of Education and Research sponsoring the ARCIM?
As anthroposophical medicine is based on concepts that fly in the face of science, this seems a legitimate question. Sadly, I have no answer to it.
What is the ‘Filderclinic’?
The Filderklinik in Filderstadt-Bonlanden is one of six anthroposophically orientated hospitals in Germany. It is operated by the non-profit organisation Filderklinik gGmbH. The main founders of the Filderklinik, which has existed since 1975, were Hermann and Ernst Mahle, the founders of the Mahle Group. The Mahle-Stiftung GmbH is the main shareholder and also the largest sponsor of Filderklinik gGmbH. The hospital employs around 915 staff and has 300 beds.
Who is Jan Vagedes?
Jan Vagedes is a specialist for paediatrics and adolescent medicine, neonatology and a doctor for anthroposophic medicine. He studied in and graduated from the LMU in Munich (my alma mater) in 1997. He is the Founder and Scientific Director of the ARCIM Institute, a research associate at the University Children’s Hospital Tübingen, and Head of paediatrics and adolescent medicine at the Filderclinic.
He has no ‘habilitation’ (PhD and in Germany precondition for a professorship). Medline currently lists 42 articles in his name most of which are in 3rd class journals. His first Medline-listed article is dated 2012. As the ARCIM was established in 2010, this means that, when he was appointed as its ‘scientific director’, he had exactly zero published science to his name.
Why did he get the job?
I have absolutely no idea?
(If you know more than I do, I’d be grateful to hear about it.)
The Buteyko techniques (known in Russia as ‘Voluntary Elimination of Deep Breathing’) are treatments to control respiration developed by the Russian Konstantin Buteyko (1923–2003). Inspired by the methods of respiratory control in yoga, the original Buteyko technique was specifically aimed at easing the symptoms of respiratory conditions, particularly asthma. Konstantin Buteyko postulated that there is a connection between hyperventilation and asthma and that it should be possible to reduce asthma symptoms by deliberate breath control.
The Eucapnic Buteyko method is an adaptation of Buteyko’s original technique which was first introduced in Australia and is now used worldwide. It includes the same focus on ventilation control, but the approach has been re-designed with the aim of achieving better patient-compliance. Both treatments and further variations depend crucially on the cooperation of the patient who has to attend long sessions of learning the technique and must follow the somewhat tedious programme rigorously.
A Cochrane review of Buteyko and similar breathing techniques concluded that “there is no credible evidence regarding the effectiveness of breathing exercises for the clinical symptoms of dysfunctional breathing/hyperventilation syndrome. It is currently unknown whether these interventions offer any added value in this patient group or whether specific types of breathing exercise demonstrate superiority over others.”
Now, a new study adds to this knowledge. This randomized clinical trial included two groups (n = 30 each) of patients with asthma. They received either:
- Buteyko breathing technique (BBT) together with usual therapy (UT)
- or UT alone over a period of 3 months.
The primary outcome comprised the voluntary control pause (CP) after 3 months, secondary outcomes an additional breathhold parameter, forced expiratory volume in 1 s (FEV1), capnovolumetry, exhaled nitric oxide (FeNO), Asthma Control Questionnaire (ACQ) and Nijmegen Questionnaire (NQ), and the use of medication (β2-agonists; inhaled corticosteroids, ICS).
CP showed significant time-by-group interaction [F(1,58.09) = 28.70, p < 0.001] as well as main effects for study group [F(1,58.27) = 5.91, p = 0.018] and time [F(1,58.36) = 17.67, p < 0.001]. ACQ and NQ scores were significantly (p < 0.05 each) improved with BBT. This was associated with reductions in the use of β2-agonists and ICS (p < 0.05 each) by about 20% each. None of these effects occurred in the UT group. While FEV1 and the slopes of the capnovolumetric expiratory phases 2 and 3 did not significantly change, the capnovolumetric threshold volume at tidal breathing increased (p < 0.05) with BBT by about 10 mL or 10%, compared to baseline, suggesting a larger volume of the central airways. No significant changes were seen for FeNO.
The authors concluded that BBT was clinically effective, as indicated by the fact that the improvement in symptom scores and the small increase in bronchial volume occurred despite the significant reduction of respiratory pharmacotherapy. As the self-controlled Buteyko breathing therapy was well-accepted by the participants, it could be considered as supporting tool in asthma therapy being worth of wider attention in clinical practice.
I disagree with this conclusion and think it ought to be changed to:
BBT or a placebo effect was clinically effective.
The reason is that, as many readers have heard me say before, the infamous A+B versus B design does not control for placebo effects and thus is guaranteed to produce a positive result.
The research was conducted by an international team evidently led by the relatively new ARCIM Institute which claims on its website:
The acronym ARCIM stands for Academic Research in Complementary and Integrative Medicine.
The bridging between different treatment and research approaches, disciplines and ways of thinking achieved by the research work of the ARCIM Institute can be symbolized by our logo’s bridge arch. ARCIM integrates this bridge-building metaphor within its name since the Latin term “arcus” means “arch” or “bridge.”
Supportive care is often assumed to be beneficial in managing the anxiety symptoms common in patients in sterile hematology unit. The authors of this study hypothesize that personal massage can help the patient, particularly in this isolated setting where physical contact is extremely limited.
The main objective of this study therefore was to show that anxiety could be reduced after a touch-massage performed by a nurse trained in this therapy.
A single-center, randomized, unblinded controlled study in the sterile hematology unit of a French university hospital, validated by an ethics committee. The patients, aged between 18 and 65 years old, and suffering from a serious and progressive hematological pathology, were hospitalized in sterile hematology unit for a minimum of three weeks. They were randomized into either a group receiving 15-minute touch-massage sessions or a control group receiving an equivalent amount of quiet time once a week for three weeks.
In the treated group, anxiety was assessed before and after each touch-massage session, using the State-Trait Anxiety Inventory questionnaire with subscale state (STAI-State). In the control group, anxiety was assessed before and after a 15-minute quiet period. For each patient, the difference in the STAI-State score before and after each session (or period) was calculated, the primary endpoint was based on the average of these three differences. Each patient completed the Rosenberg Self-Esteem Questionnaire before the first session and after the last session.
Sixty-two patients were randomized. Touch-massage significantly decreased patient anxiety: a mean decrease in STAI-State scale score of 10.6 [7.65-13.54] was obtained for the massage group (p ≤ 0.001) compared with the control group. The improvement in self-esteem score was not significant.
The authors concluded that this study provides convincing evidence for integrating touch-massage in the treatment of patients in sterile hematology unit.
I find this conclusion almost touching (pun intended). The wishful thinking of the amateur researchers is almost palpable.
Yes, I mean AMATEUR, despite the fact that, embarrassingly, the authors are affiliated with prestigeous institutions:
- 1Nantes Université, CHU Nantes, Service Interdisciplinaire Douleur, Soins Palliatifs et de Support, Médecine intégrative, UIC 22, Nantes, F-44000, France.
- 2Université Paris Est, EA4391 Therapeutic and Nervous Excitability, Creteil, F-93000, France.
- 3Nantes Université, CHU Nantes, Hematology Department, Nantes, F-44000, France.
- 4Nantes Université, CHU Nantes, CRCI2NA – INSERM UMR1307, CNRS UMR 6075, Equipe 12, Nantes, F-44000, France.
- 5Institut Curie, Paris, France.
- 6Université Paris Versailles Saint-Quentin, Versailles, France.
- 7Nantes Université, CHU Nantes, Direction de la Recherche et l’Innovation, Coordination Générale des Soins, Nantes, F-44000, France.
- 8Methodology and Biostatistics Unit, DRCI CHU Nantes CHD Vendée, La Roche Sur Yon, F-85000, France.
- 9Nantes Université, CHU Nantes, Service Interdisciplinaire Douleur, Soins Palliatifs et de Support, Médecine intégrative, UIC 22, Nantes, F-44000, France. [email protected].
So, why do I feel that they must be amateurs?
- Because, if they were not amateurs, they would know that a clinical trial should not aim to show something, but to test something.
- Also, if they were not amateurs, they would know that perhaps the touch-massage itself had nothing to do with the outcome, but that the attention, sympathy and empathy of a therapist or a placebo effect can generate the observed effect.
- Lastly, if they were not amateurs, they would not speak of convincing evidence based on a single, small, and flawed study.
After the nationwide huha created by the BBC’s promotion of auriculotherapy and AcuSeeds, it comes as a surprise to learn that, in Kent (UK), the NHS seems to advocate and provide this form of quackery. Here is the text of the patient leaflet:
Kent Community Health, NHS Foundation Trust
Auriculotherapy
This section provides information to patients who might benefit from auriculotherapy, to complement their acupuncture treatment, as part of their chronic pain management plan.
What is auriculotherapy?
In traditional Chinese medicine, the ear is seen as a microsystem representing the entire body. Auricular acupuncture focuses on ear points that may help a wide variety of conditions including pain. Acupuncture points on the ear are stimulated with fine needles or with earseeds and massage (acupressure).
How does it work?
Recent research has shown that auriculotherapy stimulates the release of natural endorphins, the body’s own feel good chemicals, which may help some patients as part of their chronic pain management plan.
What are earseeds?
Earseeds are traditionally small seeds from the Vaccaria plant, but they can also be made from different types of metal or ceramic. Vaccaria earseeds are held in place over auricular points by a small piece of adhesive tape, or plaster. Applying these small and barely noticeable earseeds between acupuncture treatments allows for patient massage of the auricular points. Earseeds may be left in place for up to a week.
Who can use earseeds?
Earseeds are sometimes used by our Chronic Pain Service to prolong the effects of standard acupuncture treatments and may help some patients to self manage their chronic pain.
How can I get the most out my treatment with earseeds?
It is recommended that the earseeds are massaged two to three times a day or when symptoms occur by applying gentle pressure to the earseeds and massaging in small circles.
Will using earseeds cure my chronic pain?
As with any treatment, earseeds are not a cure but they can reduce pain levels for some patients as part of their chronic pain management programme.
________________________
What the authors of the leaflet forgot to tell the reader is this:
- Auriculotherapy is based on ideas that fly in the face of science.
- The evidence that auriculotherapy works is flimsy, to say the least.
- The evidence earseeds work is even worse.
- To arrive at a positive recommendation, the NHS had to heavily indulge in the pseudo-scientific art of cherry-picking.
- The positive experience that some patients report is due to a placebo response.
- For whichever condition auriculotherapy is used, there are treatments that are much more adequate.
- Advocating auriculotherapy is therefore not in the best interest of the patient.
- Arguably, it is unethical.
- Definitely, it is not what the NHS should be doing.
- an immediate osteopathic manipulative therapy (OMT) intervention group,
- a delayed OMT (waiting period) group.
The intervention consisted of three to four OMT sessions over 4–6 weeks, after which the participants switched (crossed-over) groups. The OMT techniques included a mandatory HVLA thrust technique to the lumbar spine region and any (or none) combination of the following four techniques: (i) soft tissue, (ii) muscle energy, (iii) myofascial, and (iv) articulatory. For patients who could not tolerate the HVLA treatment, a physician had to attempt this technique, minimally by attempting to place the patient in the position to perform this maneuver.
The primary clinical outcomes were average pain, current pain, Patient-Reported Outcomes Measurement Information System (PROMIS) 29 v1.0 pain interference and physical function, and modified Oswestry Disability Index (ODI). Secondary outcomes included the remaining PROMIS health domains and the Fear Avoidance Beliefs Questionnaire (FABQ). These measures were taken at baseline (T0), after one OMT session (T1), at the crossover point (T2), and at the end of the trial (T3). Due to the carryover effects of OMT intervention, only the outcomes obtained prior to T2 were evaluated utilizing mixed-effects models and after adjusting for baseline values.
- This study is far too small to allow conclusions about safety.
- The trial compared OMT with no therapy; it is likely that the observed outcomes have little to do with OMT but are due to a placebo response.
- The primary outcome measure showed no effect which essentially means that the study finding was that OMT is ineffective.
My conclusion:
a poor study conducted by wishful thinkers.
This review aimed to investigate and categorize the causes and consequences of ‘quack medicine’ in the healthcare.
A scoping review, using the 5 stages of Arksey and O’Malley’s framework, was conducted to retrieve and analyze the literature. International databases including the PubMed, Scopus, Embase and Web of Science and also national Iranian databases were searched to find peer reviewed published literature in English and Persian languages. Grey literature was also included. Meta-Synthesis was applied to analyze the findings through an inductive approach.
Out of 3794 initially identified studies, 30 were selected for this review. Based on the findings of this research, the causes of quackery in the health were divided into six categories:
- political,
- economic,
- socio-cultural,
- technical-organizational,
- legal,
- and psychological.
Additionally, the consequences of this issue were classified into three categories:
- health,
- economic,
- and social.
Economic and social factors were found to have the most significant impact on the prevalence of quackery in the health sector. Legal and technical-organizational factors played a crucial role in facilitating fraudulent practices, resulting in severe health consequences.
The authors concluded that it is evident that governing bodies and health systems must prioritize addressing economic and social factors in combating quackery in the health sector. Special attention should be paid to the issue of cultural development and community education to strengthen the mechanisms that lead to the society access to standard affordable services. Efforts should be made also to improve the efficiency of legislation, implementation and evaluation systems to effectively tackle this issue.
The authors point out that, in the health systems, particularly those of developing countries, a phenomenon known as “Quack Medicine” has been a persistent problem, causing harm in various branches of health care services. They define quackery as unproven or fraudulent medical practices that have no scientifically plausible rationale behind them. Someone who does not have professional qualification, formal registration from a legitimated institution, or required knowledge of a particular branch of medicine but practices in the field of medicine, is a quack, according to the authors’ definition. Finally, they define quack medicine as a fraudulent practice of quacks claiming to possess the ability and experience to diagnose and treat diseases, and pretending that the medicine or treatment they provide are effective, generally for personal and financial gain.
The authors rightly point out that, in some countries, there may be a lack of willpower, determination and effort among political leaders to deal with and prevent fraud and charlatanism in various fields, especially in the health system. This can be due to conflict of interests, corruption network, or insufficient infrastructure and resources, such as financial capacity and human resources. In some cases, they stress, policy makers may choose to tolerate small levels of unproven medical practices if the cost of prosecuting and correcting the situation outweigh the financial benefits. This can lead to a cycle of continued fraud and a lack of effective interventions to address the issue. In many countries laws against quack medicine do exist. However, their effectiveness depends on proper and strict implementation. More efforts and measures must be taken to implement the existing laws. Inadequate enforcement of laws and approval of pseudo-medicine can result in people receiving improper care.
The authors recommend that the healthcare systems, prioritize addressing economic and sociocultural factors in order to effectively combat this issue. In developing solutions, attention must be given to cultural development and community education, and efforts should be made to strengthen mechanisms that provide access to affordable, standard healthcare services for all. Lastly, it is crucial to enhance the performance of systems responsible for legislation, implementation and evaluation of laws and regulations related to quack medicine.
The Austrian ‘Initiative für Wissenschaftliche Medizin‘ (Initiative for Scientific Medicine) did a great job by summarizing the non-scientific training events dedicated to pseudomedicine organized, supported or promoted by the ‘Österreichische Akademie der Ärzte‘ (Austrian Academy of Physicians), a partner of the Austrian Medical Association. They sorted them by date in descending order, listing the DFP points (points required for postgraduate education) awarded and the link to each specific event. The content of the programme of such events, if available, is also often “interesting”. The pseudomedicine methods are provided with links to psiram.com, where these methods are described in more detail.
So, restricting ourselves to the period of 20 years (2003-2023) and merely looking at a selection of all possible so-called alternative medicine (SCAM), we find in this treasure trove of quackery the following:
- Anthroposophic medicine – 218 events
- Homeopathy – 1 708 events
- Orthomolecular medicine – 645 events
- Neural therapy – 864 events
- TCM diagnostics – 1214 events
In total, thousands SCAM events were organized, supported or promoted by the Academy, and I am not aware of any national physicians’ organization that has done anywhere near as much for quackery.
On their website, the Austrian Academy of Physicians state that they were founded by the Austrian Medical Association as a non-profit organisation with the aim of promoting and further developing medical education in Austria… The aim is to lead the way in medical education issues in order to achieve continuous improvement in the medical profession. For the Academy, continuing medical education is an essential component of medical quality improvement…
This may sound alright but, in my view, it raises several questions, e,g,:
- Does the Academy believe that continuous improvement in the medical profession can be achieved by promoting, organizing or conducting such a huge amount of courses in quackery?
- Do they not know that this is the exact opposite of medical quality improvement?
- Are they aware of their ethical responsibility?
- Do they know that the promotion of quackery puts patients at risk?
- Have they heard of evidence-based education?
It is easy to criticize but less obvious to improve. In case the people responsible for postgraduate education at the Academy want to discuss these issues with me, I would therefore be delighted to do so, for instance, via a series of evidence-based lectures on SCAM.
If you live in the UK, it was impossible during the last week or so to escape the news that our King is going into hospital for a ‘corrective procedure’ on his benign prostate problem. Apparently, he is keen to share his diagnosis with the public to encourage other men who may be experiencing symptoms to get checked. “In common with thousands of men each year, the King has sought treatment for an enlarged prostate,” the official statement said.
According to the NHS website, the King should make lifestyle changes, such as:
- drinking less alcohol, caffeine and fizzy drinks
- limiting your intake of artificial sweeteners
- exercising regularly
- drinking less in the evening
Medicine to reduce the size of the prostate and relax your bladder may be recommended to treat moderate to severe symptoms of an enlarged prostate. Surgery is usually only recommended for moderate to severe symptoms that have not responded to medicine.
It is said that Charles had symptoms since Christmas. So, being the most outspoken fan of so-called alternative medicine (SCAM), why has he not tried SCAM? Has he, for example, tried any of these treatments that have reported at least in one or more studies some promise?:
- Camelia sinensis (green or black tea),
- Solanum lycopersicum (common tomato),
- Punica granatum (pomegranate),
- Glycine max (common soy),
- Linum usitatissimum (linen),
- Ellagic acid,
- Saw palmetto,
- Pumpkin seed,
- Willow herb,
- Maritime pine bark,
- Pygeum africanum bark,
- Rye pollen,
- Nettle root,
- Dozens of Chinese herbs,
- Acupuncture,
- Homeopathy.
It seems not!
But why not?
Why does the world’s greatest SCAM enthusiast not go for his beloved natural cures and ancient wisdom?
Has Charles been advised that the studies are flimsy and the evidence is unconvincing (in that case, well-done Michael!)? I might have given the same advice. Yet, this begs the question, why are he and his head of the royal medical household, Dr Michael Dixon, fiercely in favor of SCAM? Is the evidence for other conditions any better?
Michael, in case you read this: it is not – trust me, I have studied the subject for >30 years.
Anyway, I would probably have consulted a surgeon too, if I had Charles’ problem. Yet, there is an important difference: I (in common with thousands of men) have to join the UK waiting list which currently stands at around 8 000 000.
Yes, I do try to understand that the King is the King and that I am far less of a priority.
The King is special!
The King deserves special, non-NHS treatment!
But scientific evidence is the scientific evidence, no matter whether it relates to SCAM or surgery. So, why does the King (and Dixon) promote SCAM when he himself does evidently not trust it?
Motor aphasia is common among patients with stroke. Acupuncture is recommended by TCM enthusiasts as a so-called alternative medicine (SCAM) for poststroke aphasia, but its efficacy remains uncertain.
JAMA just published a study that investigated the effects of acupuncture on language function, neurological function, and quality of life in patients with poststroke motor aphasia.
The study was designed as a multicenter, sham-controlled, randomized clinical trial. It was conducted in 3 tertiary hospitals in China from October 21, 2019, to November 13, 2021. Adult patients with poststroke motor aphasia were enrolled. Data analysis was performed from February to April 2023.
Eligible participants were randomly allocated (1:1) to manual acupuncture (MA) or sham acupuncture (SA) groups. Both groups underwent language training and conventional treatments.
The primary outcomes were the aphasia quotient (AQ) of the Western Aphasia Battery (WAB) and scores on the Chinese Functional Communication Profile (CFCP) at 6 weeks. Secondary outcomes included WAB subitems, Boston Diagnostic Aphasia Examination, National Institutes of Health Stroke Scale, Stroke-Specific Quality of Life Scale, Stroke and Aphasia Quality of Life Scale–39, and Health Scale of Traditional Chinese Medicine scores at 6 weeks and 6 months after onset. All statistical analyses were performed according to the intention-to-treat principle.
Among 252 randomized patients (198 men [78.6%]; mean [SD] age, 60.7 [7.5] years), 231 were included in the modified intention-to-treat analysis (115 in the MA group and 116 in the SA group). Compared with the SA group, the MA group had significant increases in AQ (difference, 7.99 points; 95% CI, 3.42-12.55 points; P = .001) and CFCP (difference, 23.51 points; 95% CI, 11.10-35.93 points; P < .001) scores at week 6 and showed significant improvements in AQ (difference, 10.34; 95% CI, 5.75-14.93; P < .001) and CFCP (difference, 27.43; 95% CI, 14.75-40.10; P < .001) scores at the end of follow-up.
The authors concluded that in this randomized clinical trial, patients with poststroke motor
aphasia who received 6 weeks of MA compared with those who received SA demonstrated
statistically significant improvements in language function, quality of life, and neurological
impairment from week 6 of treatment to the end of follow-up at 6 months after onset.
I was asked by the SCIENCE MEDIC CENTRE to provide a short comment. This is what I stated:
Superficially, this looks like a rigorous trial. We should remember, however, that several groups, including mine, have shown that very nearly all Chinese acupuncture studies report positive results. This suggests that the reliability of these trials is less than encouraging. Moreover, the authors state that real acupuncture induced ‘de chi’, while sham acupuncture did not. This shows that the patients were not blinded and the outcomes might easily be due to a placebo response.
Here, I’d like to add two further points:
- We have learnt that the vast majority of research coming out of China is fabricated.
- I think it is lamentable that a journal of high standing is not more critical and repeatedly falls for such suspect acupuncture studies.
A we have heard from our homeopathic friend, Dana Ullaman, homeopathy works well for plants. Unfortunatley, he was unable to provide any good evidence for his claim. To show what a nice guy I am, I herewith help him out and present a recent study on the subject:
Given the seasonal climatic characteristics, forest fires in “cerrado” areas in Central Brazil are not infrequently, with permanent damage. Due to its physicochemical qualities acting in biological regulation processes, water has been considered the primary vehicle for propagating signals from homeopathic ingredients, as suggested by previous studies carried out with solvatochromic dyes. Therefore, such inputs could, in theory, be inserted into watercourses to stimulate the regeneration of the biome destroyed by fire. This hypothesis motivated this case study.
A slow dispersion device was developed aiming at promoting continuous environmental regeneration, containing hydrocolloid and calcium carbonate as a solid base soaked in a homeopathic complex specifically designed for this purpose, composed of Arsenicum album, Arnica montana, Staphysagria, Ignatia amara, and Phosphorus, all at 30cH. The case occurred in Nascentes do Rio Taquari Park, between Mato Grosso and Mato Grosso do Sul state, Brazil. It is a “cerrado” area, with multiple springs that feed the Paraguay River, occupying an area of 26,849 hectares over the Guarani and Bauru aquifers.
After the fire in early September 2020, the devices were fixed at 9 strategic points in the park (P1 to P9) over 10 days, between September 29, and October 11, 2020, in water courses close to the main springs. To assess the restoration signs of the post-fire environment, the technicians responsible for monitoring the park made observations of flora and fauna recomposition in different locations close to four device-insertion points (P3, P5, P7, P8).
Signs of recovery were observed 40 days after the fire was over. A rapid pioneer plant restructuring was noted, with a significant regrowth of grass, herbaceous and shrub species, such as Mutamba (Guazuma ulmifolia), Murici (Byrsonima spp.), Inga (Inga sp.), Brachiaria (Brachiaria sp.), Jaraguá grass (Hyparrhenia rufa), Colonião grass (Panicum maximum), Gabiroba (Campomanesia sp.), and Pixirica (Miconia sp.). Some species, such as Mimosa (Mimosa sp.), Colonião grass (Panicum maximum), and Jaraguá grass (Hyparrhenia rufa), were not detected in the area before the fire, probably by the seed bank stimulation caused by the heat. There was rapid forest regeneration (4 months after the fire) and restoration of most of the burned trees, both for resisting the fire and for being free of invasive species highly aggressive to native plants, which were controlled by the action of fire. Concerning the fauna, a vast animal population was detected, especially birds, highlighting the “Tuiuiú” (Jabiru mycteria) and “Socó” (Tigrisoma lineatum) close to a water body with a waterfall area (P3). Both species belong to the “Pantanal” biome close to the park. Such species began to frequent the park’s lakes, being observed until February 2023 (the last survey date). The park’s inventory of lichens and fungi showed an unusual tolerance to fire in species that adhered to burned trees and remained active.
In this way, it is suggested that installing slow dispersion devices in watercourses can contribute to the regeneration of other “cerrado” biome areas subjected to fire, protecting the local biodiversity. More studies of this nature are needed to know the real impact of this method on the recovery of different biomes.
Convinced?
I suspect Dana might be (he seems to be particularly prone to confirmation bias) – but rational thinkers do probably have questions; let me just mention two:
- Was there a control area with which the findings were compared?
- Was the outcome measure objective?
As the answers are NO and NO, I fear that we need to disappoint Dana yet again:
homeopathy is a placebo treatment no matter whether we apply it to humans, animals or plants.
