Article

Wheat germination (20 h) and extremely diluted gibberellic acid (10e−30): Explorative experiments on a fundamental homoeopathy research model

Authors:
To read the full-text of this research, you can request a copy directly from the authors.

Abstract

Objective To further explore a model on the effect of extremely diluted gibberellic acid (10e-30) on wheat growth by modifying observation time (20hrs) and the observation parameters (germination and rooting).

No full-text available

Request Full-text Paper PDF

To read the full-text of this research,
you can request a copy directly from the authors.

... Com o aumento do interesse da população por CAM, os médicos têm sentido a necessidade de suprir essa demanda, desviada nos EUA para os terapeutas não médicos. Unida ao desgosto dos pacientes pelo sistema de saúde convencional, a insatisfação dos médicos pelo mesmo modelo tem ocasionado aumento no interesse desses profissionais por práticas não convencionais [58,59]. Metanálise de 12 levantamentos das atitudes de médicos convencionais frente às abordagens complementares em saúde mostrou que eles as consideravam moderadamente efetivas [60]. ...
... Avaliando a reprodutibilidade dos experimentos homeopáticos em plantas, que reiteram a validade de resultados isolados, revisões recentes [14,15] agruparam estudos semelhantes de uma mesma linha de pesquisa, evidenciando a repetição de efeitos positivos comparáveis. Nos modelos com plantas sadias, destacaram os experimentos das linhas de pesquisa 'mudas de trigo & nitrato de prata' [9,38,40,56,57], 'ervilha-anã & ácido giberélico' [30,33], 'mudas de trigo/ crescimento do talo & ácido giberélico' [21][22][23]25,26] e 'mudas de trigo/ germinação & ácido giberélico' [24,58]. Nos modelos com plantas submetidas a estresse abiótico e posterior tratamento, destacaram os experimentos da linha de pesquisa 'envenenamento de mudas de trigo com arsênico & Arsenicum album' [48,[53][54][55]59]. ...
Article
Full-text available
Para desmistificar a falácia ou pós-verdade de que “não existem evidências científicas em homeopatia”, disseminada indistintamente em todos os meios, a Câmara Técnica de Homeopatia do Conselho Regional de Medicina do Estado de São Paulo (CREMESP) elaborou o Dossiê Especial “Evidências Científicas em Homeopatia”, que acaba de ser disponibilizado online na Revista de Homeopatia da Associação Paulista de Homeopatia (APH). Englobando 9 revisões (e 2 RCT) sobre diversas linhas de pesquisa existentes nos mais variados campos da ciência, as quais comportam centenas de artigos científicos publicados em periódicos distintos, esse dossiê evidencia à classe médica e científica, assim como ao público em geral, o estado da arte da pesquisa homeopática. Apesar das dificuldades e limitações existentes para o desenvolvimento de pesquisas na área, tanto pelos aspectos metodológicos quanto pela ausência de apoio institucional e financeiro, o conjunto de estudos experimentais e clínicos citados, que fundamentam os pressupostos homeopáticos e confirmam a eficácia e a segurança da terapêutica, é prova inconteste de que “existem evidências científicas em homeopatia”, ao contrário do preconceito falsamente disseminado. Com a elaboração e a divulgação desse dossiê, sob os auspícios da Câmara Técnica de Homeopatia do CREMESP, esperamos esclarecer e sensibilizar os colegas de profissão sobre a validade e a importância do emprego da homeopatia como prática médica adjuvante e complementar às demais especialidades, segundo princípios éticos e seguros, a fim de se ampliar o entendimento do processo de adoecimento humano e o arsenal terapêutico, incrementar o ato médico e sua resolutividade nas doenças crônicas, minimizar os efeitos adversos dos fármacos modernos e fortalecer a relação médico-paciente, dentre outros aspectos. Dessa forma, poderemos trabalhar unidos em torno da “mais elevada e única missão do médico que é tornar saudáveis as pessoas doentes, o que se chama curar” (Samuel Hahnemann, Organon da arte de curar, § 1).
... Para evaluar la reproducibilidad de los experimentos homeopáticos en plantas, que podrían confirmar la validez de los resultados aislados, revisiones recientes [14,15] agruparon los estudios conforme a su línea de investigación. Entre los modelos con plantas sanas, destacan los experimentos correspondientes a las líneas de investigación 'plántulas de trigo y nitrato de plata' [9,38,40,56,57), 'chícharo enano y ácido giberélico' [30,33], 'crecimiento de plántulas/tallo de trigo y ácido giberélico' [21][22][23]25,26] y 'plántulas de trigo/germinación y ácido giberélico' [24,58]. Entre los modelos con plantas expuestas a estrés abiótico y después del tratamiento, predominaron los experimentos de 'intoxicación de plántulas de trigo con arsénico y Arsenicum album' [48,[53][54][55]59]. ...
Article
Full-text available
Efectos de las diluciones homeopáticas altas sobre las plantas: Revisión de la literatura Resumen Abstract Antecedentes: Entre los supuestos no convencionales de la homeopatía, el uso de medicamentos en diluciones altas (HD, por sus siglas en inglés) es una causa de objeciones y escepticismo entre la comunidad científica, formada dentro del paradigma de la dependencia de la dosis de la farmacología clásica. La investigación que busca evidenciar los efectos de las HD homeopáticas recurre a varios modelos experimentales (in vitro, plantas y animales). Objetivo: Describir los resultados de estudios con alta calidad metodológica que han demostrado los efectos positivos de las HD homeopáticas sobre las plantas. Métodos: Tomando como fuente de referencia las revisiones publicadas hasta 2015, actualizamos la información añadiendo datos de estudios recientes inclui-dos en la base de datos PubMed. Resultados: De los 167 estudios experimentales analizados, 48 cumplieron los criterios mínimos de calidad metodológica, de los cuales 29 detectaron efectos específicos de las diluciones homeopáticas altas sobre las plantas mediante la comparación con controles adecuados. Conclusiones: A pe-sar de que la mayor parte de los experimentos presentaba una calidad metodológica por debajo del estándar, los estudios que emplearon sistemáticamente reproducibilidad y controles negativos demostraron indiscutibles efectos significativos de las HD homeopáticas sobre las plantas. Background: Among the non-conventional assumptions of homeopathy, the use of medicines in high dilutions (HD) is a cause for objections and skepticism among the scientific community, trained within the dose-dependency paradigm of classic pharmacology. Research aiming at evidencing the effects of homeopathic HD has resource to several experimental models (in vitro, plants and animals). Aim: To describe the results of studies with high methodological quality that demonstrated positive effects of homeopathic HD on plants. Methods: Ta
... Avaliando a reprodutibilidade dos experimentos homeopáticos em plantas, que reiteram a validade de resultados isolados, revisões recentes [14,15] agruparam estudos semelhantes de uma mesma linha de pesquisa, evidenciando a repetição de efeitos positivos comparáveis. Nos modelos com plantas sadias, destacaram os experimentos das linhas de pesquisa 'mudas de trigo & nitrato de prata' [9,38,40,56,57], 'ervilha-anã & ácido giberélico' [30,33], 'mudas de trigo/ crescimento do talo & ácido giberélico' [21][22][23]25,26] e 'mudas de trigo/ germinação & ácido giberélico' [24,58]. Nos modelos com plantas submetidas a estresse abiótico e posterior tratamento, destacaram os experimentos da linha de pesquisa 'envenenamento de mudas de trigo com arsênico & Arsenicum album' [48,[53][54][55]59]. ...
Article
Full-text available
Resumo Introdução: Dentre as premissas não convencionais do modelo homeopático, o emprego de doses ultradiluídas de medicamentos desperta questionamentos e ceticismo na classe científica, acostumada ao paradigma dose-dependente da farmacologia clássica. Para evidenciar o efeito das ultradiluições homeopáticas em seres vivos, pesquisas são realizadas em diversos modelos experimentais (in vitro, em plantas e em animais). Objetivo: Descrever os estudos de melhor qualidade metodológica que confirmaram o efeito positivo das ultradiluições homeopáticas em plantas. Métodos: Utilizando como fontes de referência as revisões sobre o tema publicadas até 2015, atualizamos os dados adicionando estudos recentes citados na base de dados PubMed. Resultados: Dentre 167 estudos experimentais analisados nas principais revisões, 48 atingiram os critérios mínimos de qualidade metodológica e 29 identificaram os efeitos específicos das ultradiluições homeopáticas em plantas, empregando controles adequados. Conclusões: Apesar da qualidade metodológica insatisfatória da maioria dos experimentos, estudos com controle negativo sistemático e reprodutibilidade reportaram efeitos significativos e incontestáveis das ultradiluições homeopáticas em plantas. Abstract Introduction: Among the non-conventional grounds of homeopathy, the use of medicines in high dilutions is a cause for objections and skepticism among the scientific community, trained within the dose-dependency paradigm of classic pharmacology. Research aiming at evidencing the effects of homeopathic high dilutions has resource to several experimental models (in vitro, in plants and in animals). Aim: To describe the results of studies with high methodological quality that demonstrated positive effects of homeopathic high dilutions on plants. Methods: Taking reviews published until 2015 as reference source, we updated the information through the addition of data in recent studies included in database PubMed. Results: From 167 experimental studies analyzed in the main reviews, 48 met the minimum criteria of methodological quality, from which 29 detected specific effects of homeopathic high dilutions on plants through comparison with adequate controls. Conclusions: Despite the substandard methodological quality of most experiments, studies with systematic use of negative controls and reproducibility demonstrated significant undeniable effects of homeopathic high dilutions on plants. //
... To assess the reproducibility of homeopathic experiments in plants, which might confirm the validity of isolated results, recent reviews [14,15] clustered studies per line of research. Among the models with healthy plants, experiments belonging to lines of research 'wheat seedlings & silver nitrate' [9,38,40,56,57), 'dwarf pea and gibberellic acid' [30,33], 'wheat seedlings/stalk growth & gibberellic acid [21][22][23]25,26] and 'wheat seedlings/germination & gibberellic acid' [24,58] stand out. Among the models with plants exposed to abiotic stress and following treatment, experiments of 'intoxication of wheat seedlings with arsenic & Arsenicum album' [48,[53][54][55]59] predominated. ...
Article
Full-text available
Introduction: Among the non-conventional grounds of homeopathy, the use of medicines in high dilutions is a cause for objections and skepticism among the scientific community, trained within the dose-dependency paradigm of classic pharmacology. Research aiming at evidencing the effects of homeopathic high dilutions has resource to several experimental models (in vitro, in plants and in animals). Aim: To describe the results of studies with high methodological quality that demonstrated positive effects of homeopathic high dilutions on plants. Methods: Taking reviews published until 2015 as reference source, we updated the information through the addition of data in recent studies included in database PubMed. Results: From 167 experimental studies analyzed in the main reviews, 48 met the minimum criteria of methodological quality, from which 29 detected specific effects of homeopathic high dilutions on plants through comparison with adequate controls. Conclusions: Despite the substandard methodological quality of most experiments, studies with systematic use of negative controls and reproducibility demonstrated significant undeniable effects of homeopathic high dilutions on plants.
... Avaliando a reprodutibilidade dos experimentos homeopáticos em plantas, que reiteram a validade de resultados isolados, revisões recentes [14,15] agruparam estudos semelhantes de uma mesma linha de pesquisa, evidenciando a repetição de efeitos positivos comparáveis. Nos modelos com plantas sadias, destacaram os experimentos das linhas de pesquisa 'mudas de trigo & nitrato de prata' [9,38,40,56,57], 'ervilha-anã & ácido giberélico' [30,33], 'mudas de trigo/ crescimento do talo & ácido giberélico' [21][22][23]25,26] e 'mudas de trigo/ germinação & ácido giberélico' [24,58]. Nos modelos com plantas submetidas a estresse abiótico e posterior tratamento, destacaram os experimentos da linha de pesquisa 'envenenamento de mudas de trigo com arsênico & Arsenicum album' [48,[53][54][55]59]. ...
Article
Full-text available
Resumo Introdução: Dentre as premissas não convencionais do modelo homeopático, o emprego de doses ultradiluídas de medicamentos desperta questionamentos e ceticismo na classe científica, acostumada ao paradigma dose-dependente da farmacologia clássica. Para evidenciar o efeito das ultradiluições homeopáticas em seres vivos, pesquisas são realizadas em diversos modelos experimentais (in vitro, em plantas e em animais). Objetivo: Descrever os estudos de melhor qualidade metodológica que confirmaram o efeito positivo das ultradiluições homeopáticas em plantas. Métodos: Utilizando como fontes de referência as revisões sobre o tema publicadas até 2015, atualizamos os dados adicionando estudos recentes citados na base de dados PubMed. Resultados: Dentre 167 estudos experimentais analisados nas principais revisões, 48 atingiram os critérios mínimos de qualidade metodológica e 29 identificaram os efeitos específicos das ultradiluições homeopáticas em plantas, empregando controles adequados. Conclusões: Apesar da qualidade metodológica insatisfatória da maioria dos experimentos, estudos com controle negativo sistemático e reprodutibilidade reportaram efeitos significativos e incontestáveis das ultradiluições homeopáticas em plantas. Abstract Introduction: Among the non-conventional grounds of homeopathy, the use of medicines in high dilutions is a cause for objections and skepticism among the scientific community, trained within the dose-dependency paradigm of classic pharmacology. Research aiming at evidencing the effects of homeopathic high dilutions has resource to several experimental models (in vitro, in plants and in animals). Aim: To describe the results of studies with high methodological quality that demonstrated positive effects of homeopathic high dilutions on plants. Methods: Taking reviews published until 2015 as reference source, we updated the information through the addition of data in recent studies included in database PubMed. Results: From 167 experimental studies analyzed in the main reviews, 48 met the minimum criteria of methodological quality, from which 29 detected specific effects of homeopathic high dilutions on plants through comparison with adequate controls. Conclusions: Despite the substandard methodological quality of most experiments, studies with systematic use of negative controls and reproducibility demonstrated significant undeniable effects of homeopathic high dilutions on plants. //
... This holds true for both the autumn and the winter/spring experiments. The aim of the study presented here was to test the influence of the high dilution of gibberellic acid compared to control on wheat germination after one day [11]). Around 10% of the grains were ruptured and around 10% were distorted, all these were removed prior to the experiment. ...
Article
Grains of winter wheat (Triticum aestivum L., Capo variety) were observed under the influence of highly diluted gibberellic acid (10 -30) prepared by stepwise dilution and agitation according to a protocol derived from homeopathy ("G30x"). Adequate control was used (water prepared according to the homeopathic protocol "W30x" and/or untreated water "W0"). Two sets of multicenter experiments were performed, 4 in 2009-2010 and 4 in 2011, involving altogether 6 researchers, 6 laboratories and 4,000 grains per treatment group. Data were found to be homogeneous within the control groups as well as within the verum groups. When the 2009-2010 experiments were pooled, mean germination rates after 24 hours were (85.9 + 2.6) for the control group and (82.1 + 5.7) for G30x (mean + SD at the level of experiments in %) (N = 2,000 per group). Verum germination rate was 4.4% lower than (i.e. equal to 96.6% of) (4.4 + 96.6 = 101) the control germination rate (100%). The difference is statistically significant (p < 0.001) and the effect size (d) is large (> 0.8). Observations at other points in time between 0 and 40 hours of germination yielded similar results. Practically no difference was found between W30x and W0 groups (p > 0.05). When the 2011 experiments were pooled, the mean germination rates after 24 hours were (73 + 12) for the control group and (73 + 14) for G30x (N = 2,000 per group), i.e. there was practically no difference between the groups (p > 0.05). We interpret the data from 2009-2010 on wheat germination within 40 hours as being in line with our previous findings on wheat stalk growth after one week, i.e. as confirmation that gibberellic acid 30x can influence, i.e. slow down, wheat development. Various possible reasons for the absence of any difference between groups in the 2011 experiments, including seasonal variance, are discussed and it is suggested to perform wheat germination experiments in the very beginning of autumn season only.
... In order to facilitate manageability of the experimental setup, further experiments on wheat and gibberellic acid were performed on germination within one day [24]. ...
Article
Full-text available
The influence of a homeopathic high dilution of gibberellic acid on wheat growth was studied at different seasons of the year. Seedlings were allowed to develop under standardized conditions for 7 days; plants were harvested and stalk lengths were measured. The data obtained confirm previous findings, that ultrahigh diluted potentized gibberellic acid affects stalk growth. Furthermore, the outcome of the study suggests that experiments utilizing the bioassay presented should best be performed in autumn season. In winter and spring, respectively, no reliable effects were found.
Article
Full-text available
The extensive use of synthetic chemical fertilizers in agriculture is causing environmental problem. In this situation it is desirable to find out suitable agents, which would increase plant growth without compromising with the quality of food and of soil. This paper represents the history and trends of homeopathic drugs utilized in the control of plant pathogens in plant pathology. This method started with the pioneering work of kolisko in 1923 on wheat germination and Junker in 1928 on growth of microorganisms. Literature search on the Homeopathic drugs in the control of plant pathogens, which have shown the anti-fungal, anti-viral, anti-bacterial properties have been reviewed in this present paper. From the literature during the present study the different homeopathic drugs were found were used in agriculture. The contents of the article cover all the scientific reports published in Agricultural sectorfrom 1966 to till dates. A total 120 papers have been reported from homeopathic treatments used in Agriculture. Amongst these Arsenicum album, Natrum muriaticum, Cina, Thujawere found as the most used compounds. The science of homeopathy has great potentials and could give a new direction that requires attention of the researchers in alternative agriculture. This review discusses the experimental evidence relating to the use of homeopathic drugs in plant pathology, with view to assess the potential of homeopathy in agriculture.
Article
Full-text available
La Homeopatía de México | Evidencias Científicas de la Homeopatía | Edición Especial de Aniversario (90 años) | 2023 || EDITORIAL: Para aquellos que demandan evidencias científicas de la Homeopatía. Marcus Zulian Teixeira. | ARTÍCULOS: Homeopatía: una breve descripción de esta especialidad médica. Marcelo Pustiglione, Eduardo Goldenstein, Y. Moisés Checinski. | Formación médica en la terapéutica no convencional en el mundo (Homeopatía y acupuntura). Marcus Zulian Teixeira. | Bases científicas del principio de curación homeopática en la farmacología moderna. Marcus Zulian Teixeira. | La solidez de la investigación homeopática fundamental. Leoni Villano Bonamin. | Efectos de las diluciones homeopáticas altas sobre los modelos in vitro: revisión de la literatura. Silvia Waisse. | Efectos de las diluciones homeopáticas altas sobre las plantas: revisión de la literatura. Marcus Zulian Teixeira, Solange M.T.P.G. Carneiro. | Investigación clínica en Homeopatía: revisiones sistemáticas y estudios clínicos aleatorizados. Silvia Waisse. | Estrógeno potenciado en el tratamiento homeopático del dolor pélvico asociado a endometriosis: Un estudio aleatorizado, doble ciego, controlado con placebo, de 24 semanas. Marcus Zulian Teixeira, Sérgio Podgaec, Edmund Chada Baracat. | Estudio aleatorizado, doble ciego, sobre la eficacia del tratamiento homeopático en niños con amigdalitis recurrente. Sérgio E. Furuta, Luc L. M. Weckx, Cláudia R. Figueiredo. | ¿Los medicamentos homeopáticos provocan agravación o efectos adversos dependientes de los fármacos? Flávio Dantas. | ¿Los medicamentos homeopáticos inducen síntomas en voluntarios aparentemente sanos? Contribución brasileña al debate sobre los estudios patogénicos homeopáticos. Flávio Dantas. |
Article
La Homeopatía de México | Evidencias Científicas de la Homeopatía | Edición Especial de Aniversario (90 años) | 2023 || EDITORIAL: Para aquellos que demandan evidencias científicas de la Homeopatía. Marcus Zulian Teixeira. | ARTÍCULOS: Homeopatía: una breve descripción de esta especialidad médica. Marcelo Pustiglione, Eduardo Goldenstein, Y. Moisés Checinski. | Formación médica en la terapéutica no convencional en el mundo (Homeopatía y acupuntura). Marcus Zulian Teixeira. | Bases científicas del principio de curación homeopática en la farmacología moderna. Marcus Zulian Teixeira. | La solidez de la investigación homeopática fundamental. Leoni Villano Bonamin. | Efectos de las diluciones homeopáticas altas sobre los modelos in vitro: revisión de la literatura. Silvia Waisse. | Efectos de las diluciones homeopáticas altas sobre las plantas: revisión de la literatura. Marcus Zulian Teixeira, Solange M.T.P.G. Carneiro. | Investigación clínica en Homeopatía: revisiones sistemáticas y estudios clínicos aleatorizados. Silvia Waisse. | Estrógeno potenciado en el tratamiento homeopático del dolor pélvico asociado a endometriosis: Un estudio aleatorizado, doble ciego, controlado con placebo, de 24 semanas. Marcus Zulian Teixeira, Sérgio Podgaec, Edmund Chada Baracat. | Estudio aleatorizado, doble ciego, sobre la eficacia del tratamiento homeopático en niños con amigdalitis recurrente. Sérgio E. Furuta, Luc L. M. Weckx, Cláudia R. Figueiredo. | ¿Los medicamentos homeopáticos provocan agravación o efectos adversos dependientes de los fármacos? Flávio Dantas. | ¿Los medicamentos homeopáticos inducen síntomas en voluntarios aparentemente sanos? Contribución brasileña al debate sobre los estudios patogénicos homeopáticos. Flávio Dantas. |
Article
Currently more and more research is being done on integrated weed management to reduce or avoid herbicide use. Some growers are already using isotherapic dilutions to control weeds in organic farming. Isotherapy is different from homeopathy because it uses diluted and potentized (succussed) solutions of alcoholic macerate of the very pest causing health troubles. We set up a germination experiment to test if isotherapic dilutions of leaf macerate of annual ryegrass affect the dynamics of its seed germination in Petri dishes. Our results were diverse, from no effect to 10% more growing degree days necessary to reach 50% germination. It is doubtful that so low an effect will contribute to integrated weed management unless the slightly delayed germination triggers secondary effects at other life stages. This is in accordance with the scientific literature on that topic: two-fifths of the reports showed no effect, two-fifths resulted in positive responses and one-fifth had diverse responses for the criteria tested.
Article
Background Plant-based test systems have been described as a useful tool for investigating possible effects of homeopathic preparations. The last reviews of this research field were published in 2009/2011. Due to recent developments in the field, an update is warranted. Publications on plant-based test systems were analysed with regard to publication quality, reproducibility and potential for further research. Methods A literature search was conducted in online databases and specific journals, including publications from 2008 to 2017 dealing with plant-based test systems in homeopathic basic research. To be included, they had to contain statistical analysis and fulfil quality criteria according to a pre-defined manuscript information score (MIS). Publications scoring at least 5 points (maximum 10 points) were assumed to be adequate. They were analysed for the use of adequate controls, outcome and reproducibility. Results Seventy-four publications on plant-based test systems were found. Thirty- nine publications were either abstracts or proceedings of conferences and were excluded. From the remaining 35 publications, 26 reached a score of 5 or higher in the MIS. Adequate controls were used in 13 of these publications. All of them described specific effects of homeopathic preparations. The publication quality still varied: a substantial number of publications (23%) did not adequately document the methods used. Four reported on replication trials. One replication trial found effects of homeopathic preparations comparable to the original study. Three replication trials failed to confirm the original study but identified possible external influencing factors. Five publications described novel plant-based test systems. Eight trials used systematic negative control experiments to document test system stability. Conclusions Regarding research design, future trials should implement adequate controls to identify specific effects of homeopathic preparations and include systema- tic negative control experiments. Further external and internal replication trials, and control of influencing factors, are needed to verify results. Standardised test systems should be developed.
Article
Background Plant-based test systems have been described as a useful tool for investigating possible effects of homeopathic preparations. The last reviews of this research field were published in 2009/2011. Due to recent developments in the field, an update is warranted. Publications on plant-based test systems were analysed with regard to publication quality, reproducibility and potential for further research. Methods A literature search was conducted in online databases and specific journals, including publications from 2008 to 2017 dealing with plant-based test systems in homeopathic basic research. To be included, they had to contain statistical analysis and fulfil quality criteria according to a pre-defined manuscript information score (MIS). Publications scoring at least 5 points (maximum 10 points) were assumed to be adequate. They were analysed for the use of adequate controls, outcome and reproducibility. Results Seventy-four publications on plant-based test systems were found. Thirty-nine publications were either abstracts or proceedings of conferences and were excluded. From the remaining 35 publications, 26 reached a score of 5 or higher in the MIS. Adequate controls were used in 13 of these publications. All of them described specific effects of homeopathic preparations. The publication quality still varied: a substantial number of publications (23%) did not adequately document the methods used. Four reported on replication trials. One replication trial found effects of homeopathic preparations comparable to the original study. Three replication trials failed to confirm the original study but identified possible external influencing factors. Five publications described novel plant-based test systems. Eight trials used systematic negative control experiments to document test system stability. Conclusions Regarding research design, future trials should implement adequate controls to identify specific effects of homeopathic preparations and include systematic negative control experiments. Further external and internal replication trials, and control of influencing factors, are needed to verify results. Standardised test systems should be developed.
Article
Full-text available
In July 2017, to demystify the fallacy – or post-truth – asserting “there are no scientific evidence for homeopathy”, the Technical Chamber for Homeopathy, Regional Medical Council of the State of São Paulo (CREMESP, Brazil) published the Special Dossier “Evidências Científicas em Homeopatia”, available online in the scientific journal of the São Paulo Homeopathic Medical Association (APH), Revista de Homeopatia. After this publication, in view of the request of homeopathic doctors and institutions from other countries, the Technical Chamber for Homeopathy, CREMESP, produced an edition of the dossier in English, “Scientific Evidence for Homeopathy”, which has just been made available online in the Revista de Homeopatia. Encompassing 9 revisions (and 2 randomized clinical trials) on several lines of homeopathic research, containing hundreds of scientific articles published in various journals, this dossier highlights to the scientific and medical class, as well as to the general public, the state of the art of homeopathic research: Despite the ongoing difficulties and limitations opposing the development of research in homeopathy – partly due to methodological aspects, and partly to lack of institutional and financial support – the experimental and clinical studies described in this dossier, which ground the homeopathic assumptions and confirm the efficacy and safety of this approach to therapeutics – provide unquestionable proof for the “availability of scientific evidence for homeopathy”, against the false and prejudiced opinion that is widely divulgated. With the divulgation of the present dossier, prepared with the support of Technical Chamber for Homeopathy, CREMESP, we hope to dispel doubts and sensitize our colleagues as to the validity and relevance of homeopathy as adjuvant treatment complementary to all other medical specialties according to ethical and safe principles. Our overall goals are to broaden the understanding of human disease, increase the therapeutic resources, contribute to the definition and effectiveness of medicine in chronic diseases, minimize the adverse effects of modern drugs and strengthen the patient-doctor relationship, among other aspects. In this way, we will be able to work together, since “The physician’s high and only mission is to restore the sick to health, to cure, as it is termed (Samuel Hahnemann, Organon of medicine, § 1).
Article
Full-text available
Para desmitificar a falácia ou pós-verdade de que “não existem evidências científicas em homeopatia”, disseminada indistintamente em todos os meios, a Câmara Técnica de Homeopatia do Conselho Regional de Medicina do Estado de São Paulo (CREMESP) elaborou o Dossiê Especial “Evidências Científicas em Homeopatia”, que acaba de ser disponibilizado online na Revista de Homeopatia da Associação Paulista de Homeopatia (APH). Englobando 9 revisões (e 2 RCT) sobre diversas linhas de pesquisa existentes nos mais variados campos da ciência, as quais comportam centenas de artigos científicos publicados em periódicos distintos, esse dossiê evidencia à classe médica e científica, assim como ao público em geral, o estado da arte da pesquisa homeopática. Apesar das dificuldades e limitações existentes para o desenvolvimento de pesquisas na área, tanto pelos aspectos metodológicos quanto pela ausência de apoio institucional e financeiro, o conjunto de estudos experimentais e clínicos citados, que fundamentam os pressupostos homeopáticos e confirmam a eficácia e a segurança da terapêutica, é prova inconteste de que “existem evidências científicas em homeopatia”, ao contrário do preconceito falsamente disseminado. Com a elaboração e a divulgação desse dossiê, sob os auspícios da Câmara Técnica de Homeopatia do CREMESP, esperamos esclarecer e sensibilizar os colegas de profissão sobre a validade e a importância do emprego da homeopatia como prática médica adjuvante e complementar às demais especialidades, segundo princípios éticos e seguros, a fim de se ampliar o entendimento do processo de adoecimento humano e o arsenal terapêutico, incrementar o ato médico e sua resolutividade nas doenças crônicas, minimizar os efeitos adversos dos fármacos modernos e fortalecer a relação médico-paciente, dentre outros aspectos. Dessa forma, poderemos trabalhar unidos em torno da “mais elevada e única missão do médico que é tornar saudáveis as pessoas doentes, o que se chama curar” (Samuel Hahnemann, Organon da arte de curar, § 1).
Article
Full-text available
Introduction: This paper focuses exclusively on experimental models with ultra high dilutions (i.e. beyond 10e-23) that have been submitted to replication scrutiny. It updates previous surveys, considers suggestions made by the research community and compares the state of replication in 1994 with that in 2015. Methods: Following literature research, biochemical, immunological, botanical, cell biological and zoological studies on ultra high dilutions (potencies) were included. Reports were grouped into initial studies, laboratory-internal, multicentre and external replications. Repetition could yield either comparable, or zero, or opposite results. The null-hypothesis was that test and control groups would not be distinguishable (zero effect). Results: A total of 126 studies were found. From these, 28 were initial studies. When all 98 replicative studies were considered, 70.4% (i.e. 69) reported a result comparable to that of the initial study, 20.4% (20) zero effect and 9.2% (9) an opposite result. Both for the studies until 1994 and the studies 1995-2015 the null-hypothesis (dominance of zero results), should be rejected. Furthermore, the odds of finding a comparable result are generally higher than of finding an opposite result. Although this is true for all three types of replication studies, the fraction of comparable studies diminishes from laboratory-internal (total 82.9%) to multicentre (total 75%) to external (total 48.3%), while the fraction of opposite results was 4.9%, 10.7% and 13.8%. Furthermore, it became obvious that the probability of an external replication producing comparable results is bigger for models that had already been further scrutinized by the initial researchers. Conclusions: We found 28 experimental models which underwent replication. In total, 24 models were replicated with comparable results, 12 models with zero effect, and 6 models with opposite results. Five models were externally reproduced with comparable results. We encourage further replications of studies in order to learn more about the model systems used.
Article
Background: Following studies (a) on wheat seedlings and ultra high diluted silver nitrate, and (b) on amphibians and an ultra high diluted hormone, (c) a bio-assay on wheat and extremely diluted gibberellic acid was standardized. This assay was intended to combine the easy-to-handle aspect of (a) and biologically interesting aspects of (b). The purpose of the data analysis presented here was to investigate the influence of an extreme dilution of gibberellic acid on wheat stalk length and to determine the influence of external factors on the experimental outcome. Methods: Grains of winter wheat (Triticum aestivum, Capo variety) were observed under the influence of extremely diluted gibberellic acid (10(-30)) prepared by stepwise dilution and agitation according to a protocol derived from homeopathy ('G30x'). Analogously prepared water was used for control ('W30x'). 16 experiments including 8000+8000 grains were performed by 9 researchers. Results: Experiments that were performed between January and April showed inconsistent results, whereas most of the experiments performed between September and December showed shorter stalks in the G30x group. This was confirmed by correlation analysis (p<0.01). Thus winter/spring experiments and autumn experiments were analysed separately. When all 10 autumn experiments were pooled, mean stalk lengths (mm) were 48.3±21.4 for the verum group and 52.1±20.4 for control (mean±SD) at grain level (N=5000 per group) and ±5.3 and ±5.1 respectively at dish level. In other words, verum stalk length (92.67%) was 7.33% smaller than control stalk length (100%). The effect size is small when calculation is done on the basis of grains (d=0.18) but, due to the smaller SD at dish level, medium when done on the basis of dishes (d=0.73). The inhibiting effect was observed by 6 of the 6 researchers who performed the autumn experiments. Conclusion: The model may be useful for further research as there exists a theoretical justification due to previous studies with wheat and extremely diluted silver nitrate, as well as to previous studies with amphibians and diluted hormones, and its methods are well standardized. Data confirm the hypothesis that information can be stored in the test liquid, even at a dilution of the original substance beyond Avogadro's value; and that the wheat bio-assay is sensitive to such information.
ResearchGate has not been able to resolve any references for this publication.