RESUMO
BACKGROUND: Arsenic trioxide (As2O3) has been in therapeutic use since the 18th century for various types of cancers including skin and breast; however, it gained popularity following FDA approval for its use against acute promyelocytic leukemia. This present work was designed to evaluate the anti-cancer potential of a homeopathic potency of arsenic trioxide (Arsenicum album 6C) in hormone-dependent breast cancer. METHODS: Breast cancer cells (MCF7) were treated with Arsenicum album (Ars 6C) to evaluate its anti-proliferative and apoptotic potential. We examined the effect of Ars 6C on the cell cycle, wound healing, reactive oxygen species (ROS) generation, and modulation of expression of key genes which are aberrant in cancer. RESULTS: Treating breast cancer cells with Ars 6C halted the cell cycle at the sub-G0 and G2/M phases, which could be attributed to DNA damage induced by the generation of ROS. Apoptotic induction was associated with upregulation of Bax expression, with concurrent downregulation of the Bcl-2 gene. Ars 6C was also seen to reverse epithelial to mesenchymal transition and reduce the migration of breast cancer cells. CONCLUSION: The findings suggest that Ars has significant anti-proliferative and apoptotic potential against breast cancer cells. Further studies are required to elucidate the mechanism by which Ars exerts its effect in the in vivo setting.
Assuntos
Arsenicais , Neoplasias da Mama , Homeopatia , Humanos , Feminino , Trióxido de Arsênio/farmacologia , Transição Epitelial-Mesenquimal , Arsenicais/farmacologia , Arsenicais/uso terapêutico , Óxidos/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Espécies Reativas de Oxigênio/farmacologia , Apoptose , Pontos de Checagem do Ciclo Celular , Hormônios/farmacologia , Células MCF-7 , Linhagem Celular TumoralRESUMO
OBJECTIVES: The aim of this study is to investigate whether the number of succussion strokes applied after each dilution step when preparing the homeopathic treatments influences the effectiveness of ultra-high-diluted (UHD) arsenic trioxide at the 45th decimal dilution/dynamization (As2O3 45x). DESIGN: Wheat seeds, previously stressed with ponderal As2O3, were treated with: As2O3 45x, H2O 45x (dynamized control), or pure water (negative control). The succussion was done manually, and various succussion durations (numbers of strokes) were tested for each treatment. Treatment effectiveness was tested blind using the in vitro germination test and the droplet evaporation method (DEM). Data were processed by the Poisson test (germination test) and by two-way analysis of variance (DEM). MAIN OUTCOME MEASURES: We evaluated both the in vitro germination rate, by counting the non-germinated seeds, and the complexity of polycrystalline structures (PCS) (local connected fractal dimension (LCFD)) obtained by evaporating leakage droplets from stressed seeds that had been watered with the different treatments. RESULTS: We observed a highly significant increase in germination rate when the number of strokes (NS) was ≥32 for both As2O3 45x and H2O 45x, and a significant increase in the LCFD of PCS for As2O3 45x when the NS was ≥32 and for H2O 45x when it was 70. CONCLUSIONS: Both experimental approaches showed increased effectiveness for treatments prepared with a higher number of succussion strokes. These results indicate that succussion may have an important influence on treatment effectiveness, and so highlight the need for further research.
Assuntos
Arsenicais/farmacologia , Homeopatia , Óxidos/farmacologia , Triticum/efeitos dos fármacos , Trióxido de Arsênio , Técnicas de Química Analítica , Cristalização , Composição de Medicamentos , Germinação/efeitos dos fármacos , Humanos , Triticum/crescimento & desenvolvimentoRESUMO
Macrophages are associated with innate immune response and M1-polarized macrophages exhibit pro-inflammatory functions. Nanoparticles of natural or synthetic compounds are potential triggers of innate immunity. As2O3 is the major component of the homeopathic drug, Arsenic album 30C.This has been claimed to have immune-boosting activities, however, has not been validated experimentally. Here we elucidated the underlying mechanism of Ars. alb 30C-mediated immune priming in murine macrophage cell line. Transmission Electron Microscopy (TEM) and X-ray diffraction (XRD) used for the structural analysis of the drug reveals the presence of crystalline As2O3 nanoparticles of cubic structure. Similarly, signatures of M1-macrophage polarization were observed by surface enhanced Raman scattering (SERS) in RAW 264.7 cells with concomitant over expression of M1 cell surface marker, CD80 and transcription factor, NF-κB, respectively. We also observed a significant increase in pro-inflammatory cytokines like iNOS, TNF-α, IL-6, and COX-2 expression with unaltered ROS and apoptosis in drug-treated cells. Enhanced expression of Toll-like receptors 3 and 7 were observed both in transcriptional and translational levels after the drug treatment. In sum, our findings for the first time indicated the presence of crystalline As2O3 cubic nanostructure in Ars. alb 30C which facilitates modulation of innate immunity by activating macrophage polarization.
Assuntos
Arsênio , Nanoestruturas , Animais , Camundongos , Trióxido de Arsênio/farmacologia , Arsênio/farmacologia , Macrófagos , Linhagem CelularRESUMO
The therapeutic effects of homoeopathic Arsenicum album potencies were investigated in-vitro, using a continuous cell line (MT4), pre-intoxicated with arsenic trioxide (As(2)O(3)), and then treated with succussed and unsuccussed homoeopathic potencies, 6CH, 30CH and 200CH. This study aimed to verify the homoeopathic law of similars and to determine whether potencies diluted beyond Avogadro's constant had physiological effects on cells; whether various potencies would cause different effects as suggested by the concept of hormesis; whether succussed and unsuccussed homoeopathic potencies had different effects on the cells; and to establish whether a biotechnological method could be used to evaluate the above. As(2)O(3) was used to pre-intoxicate and the MTT assay was used to measure the percentage cytotoxicity and half maximal inhibitory concentration (IC(50)) of the cells. The homoeopathic potencies of Arsenicum album (6CH, 30CH and 200CH) were prepared by either succussing or allowing to diffuse for 30 s. After pre-intoxication of the MT4 cells with the IC(50) As(2)O(3) and treatment with succussed and unsuccussed Arsenicum album (6CH-200CH), the cell viability increased with increasing potency from 81% to 194% (over 72 h). The treatments and the times of exposure were found to be statistically significant determinants of cell viability, whereas succussion did not cause any significant variation in the results. The study provided evidence that a biotechnological method (namely cell viability) may be used to scientifically evaluate the physiological effects of homoeopathic potencies on human cells; it confirmed that the homoeopathic potencies did have therapeutic effects; and that succussion was not required in the potentization method in order to produce a curative remedy.
Assuntos
Arsenicais/efeitos adversos , Arsenicais/farmacologia , Homeopatia/métodos , Leucócitos/patologia , Óxidos/efeitos adversos , Trióxido de Arsênio , Linhagem Celular Transformada , Sobrevivência Celular/efeitos dos fármacos , Relação Dose-Resposta a Droga , Humanos , Neoplasias/tratamento farmacológicoRESUMO
In this paper, we review three simple plant models (wheat seed germination, wheat seedling growth, and infected tobacco plants) that we set up during a series of experiments carried out from 1991 to 2009 in order to study the effects of homeopathic treatments. We will also describe the set of statistical tools applied in the different models. The homeopathic treatment used in our experiments was arsenic trioxide (As2O3) diluted in a decimal scale and dynamized. Since the most significant results were achieved with the 45th decimal potency, both for As2O3 (As 45x) and water (W 45x), we here report a brief summary of these results. The statistical analysis was performed by using parametric and nonparametric tests, and Poisson distribution had an essential role when dealing with germination experiments. Finally, we will describe some results related to the changes in variability, which seems to be one of the targets of homeopathic treatment effect.
Assuntos
Homeopatia/métodos , Modelos Biológicos , Desenvolvimento Vegetal , Trióxido de Arsênio , Arsenicais/farmacologia , Germinação/efeitos dos fármacos , Inibidores do Crescimento/farmacologia , Humanos , Óxidos/farmacologia , Plantas/efeitos dos fármacos , Plantas/virologia , Plântula/efeitos dos fármacos , Plântula/crescimento & desenvolvimento , Nicotiana/efeitos dos fármacos , Nicotiana/crescimento & desenvolvimento , Nicotiana/virologia , Vírus do Mosaico do Tabaco/efeitos dos fármacos , Triticum/efeitos dos fármacos , Triticum/crescimento & desenvolvimentoRESUMO
BACKGROUND: Two experimental studies on wheat preintoxicated with Arsenic trioxide yielded a significant shoot growth increase after an isopathic application of Ars-alb 45x. One independent reproduction trial however, yielded an effect inversion: wheat shoot growth was significantly decreased after application of Ars-alb 45x. AIMS: In this study we investigated the role of three potential confounding factors on the experimental outcome: geographical location of the experiments, influence of the main experimenter, and seed sensitivity to Arsenic poisoning. Laboratory-internal reproducibility was assessed by meta-analysis. MATERIAL AND METHODS: Wheat poisoned with Arsenic trioxide was cultivated in vitro in either Ars-alb 45x, water 45x, or unpotentised water. Treatments were blinded and randomised. Shoot length was measured after 7 days. The stability of the experimental set-up was assessed by systematic negative control (SNC) experiments. RESULTS: The SNC experiments did not yield significant differences between the three groups treated with unpotentised water. Thus the experimental set-up seemed to be stable. We did not observe any shoot growth increase after a treatment with Ars-alb 45x in any of the newly performed experiments. In contrast, the meta-analysis of all 17 experiments performed (including earlier experiments already published) yielded a statistically significant shoot growth decrease (-3.2%, p=0.017) with isopathic Ars-alb 45x treatment. This effect was quantitatively similar across all five series of experiments. CONCLUSIONS: Ultramolecular Ars-alb 45x led to statistically significant specific effects in arsenic poisoned wheat when investigated by two independent working groups. Effect size and effect direction differ, however. The investigated factors (geographical location, experimenter, seed sensitivity to Arsenic poisoning) did not seem to be responsible for the effect inversion. Laboratory external reproducibility of basic research into homeopathic potentisation remains a difficult issue.
Assuntos
Arsenicais/farmacologia , Plântula/efeitos dos fármacos , Reagentes de Sulfidrila/farmacologia , Triticum/efeitos dos fármacos , Trióxido de Arsênio , Técnicas de Cultura , Germinação/efeitos dos fármacos , Óxidos/farmacologia , Plântula/crescimento & desenvolvimento , Triticum/crescimento & desenvolvimento , Água/químicaRESUMO
OBJECTIVES: To evaluate the efficacy of 2 potentized homeopathic remedies of Arsenicum Album (Ars Alb)--6C and 30C--in combating chronic arsenic toxicity induced by repeated sublethal injections in mice (Mus musculus). METHODS: Mice were randomized and divided into sets: (1) normal (control 1); (2) normal + succussed alcohol (control 2); (3) As(2)O(3) (0.016%) injected at 1 ml/100 g body weight every 7 days (treated); (4) As(2)O(3) injected + succussed alcohol (positive control); (5) As(2)O(3) injected + Ars Alb 6C (drug-fed); (6) As(2)O(3) injected + Ars Alb 30C (drug-fed). Cytogenetical endpoints like chromosome aberrations, micronuclei, mitotic index, sperm head abnormality and biochemical protocols like acid and alkaline phosphatases, aspartate and alanine aminotransferases, reduced glutathione, lipid peroxidation, catalase and succinate dehydrogenase were studied at 30, 60, 90 and 120 days. RESULTS: Compared to controls, chromosome aberrations, micronuclei, sperm head abnormality frequencies and activities of acid and alkaline phosphatases, aspartate and alanine aminotransferases and lipid peroxidation were reduced in both drug-fed series, while mitotic index and activities of glutathione, catalase and succinate dehydrogenase were increased. Ars Alb 30C showed marginally better efficacy than Ars Alb 6C. CONCLUSION: Both remedies indicated potentials of use against arsenic intoxication.
Assuntos
Intoxicação por Arsênico/tratamento farmacológico , Intoxicação por Arsênico/etiologia , Arsenicais/uso terapêutico , Materia Medica/uso terapêutico , Óxidos/efeitos adversos , Fosfatase Ácida/metabolismo , Fosfatase Alcalina , Animais , Intoxicação por Arsênico/fisiopatologia , Trióxido de Arsênio , Arsenicais/administração & dosagem , Arsenicais/efeitos adversos , Catalase/metabolismo , Aberrações Cromossômicas , Doença Crônica , Relação Dose-Resposta a Droga , Avaliação Pré-Clínica de Medicamentos , Feminino , Glutationa , Metabolismo dos Lipídeos , Masculino , Materia Medica/administração & dosagem , Camundongos , Índice Mitótico , Espermatozoides/patologia , Succinato Desidrogenase/metabolismo , Transaminases/metabolismo , Resultado do TratamentoRESUMO
BACKGROUND: Most criticism of homeopathy concerns the lack of scientific bases and theoretical models. Fundamental research could make important contributions to our understanding of the mechanisms of action of homeopathic treatments. Plant-based bioassays are suitable for basic research -- lacking the placebo effect and ensuring large data samples for structured statistical analyses. OBJECTIVE: The aim of this study was to reproduce a previous experiment on the effects of arsenic trioxide (As(2)O(3)) high dilutions on wheat seedling growth in order to verify whether the same significant results could be obtained working in a different place and with a different experimental team. A further goal was to investigate high dilution effects on variability. MATERIAL AND METHODS: A structured experiment was performed blind over 9 weeks, using wheat seeds previously stressed with a sublethal dose of As(2)O(3). The seeds were then treated with either potentized As(2)O(3) (5x, 15x, 25x, 35x, 45x), potentized water (equivalent potencies) or diluted As(2)O(3) (10(-5), 10(-15), 10(-25), 10(-35), 10(-45)). The working variable was the stem length, measured after 4, 5, 6 and 7 days. RESULTS: Some potencies (As(2)O(3) 45x and H(2)O 45x) induced a relevant increase in seedling growth and/or a variability decrease. Diluted As(2)O(3) did not induce any significant results. CONCLUSIONS: Confirmation of a significant stimulating effect on seedling growth and a significant decrease of variability was obtained with ultra-high dilutions at the 45x potency. The model of wheat germination and growth has been confirmed to be a good tool for basic research in homeopathy.
Assuntos
Arsenicais/farmacologia , Inibidores do Crescimento/farmacologia , Homeopatia , Modelos Biológicos , Óxidos/farmacologia , Triticum/efeitos dos fármacos , Trióxido de Arsênio , Germinação/efeitos dos fármacos , Humanos , Fitoterapia , Reprodutibilidade dos Testes , Estatística como Assunto , Triticum/crescimento & desenvolvimentoRESUMO
BACKGROUND: Independent replications of preclinical investigations of homeopathic potencies are rare. However, they are a necessary tool to determine the relevant factors modulating the effects of homeopathic potencies in preclinical systems. OBJECTIVE: The goal of the present study was to reproduce a trial published in 1997. An Italian group of researchers investigated the effect of Arsenicum album 45x on the growth of wheat which had been previously poisoned with a material dose of Arsenicum album. The homeopathic treatment was associated with increased wheat shoot growth significantly different from the control group (+24%, p < 0.001). MATERIALS AND METHODS: Wheat poisoned with a sublethal dose of Arsenicum album was cultivated in either Arsenicum album 45x, water 45x, or unpotentized water. After 7 days, shoot length was measured. Reproducibility was assessed in eight independent experiments. RESULTS: Arsenicum album 45x significantly inhibited wheat shoot growth (-3%) compared to treatment with unpotentized water and water 45x (p = 0.011 and p = 0.037). Within the experimental series performed in this reproduction trial, the effects of Arsenicum album 45x proofed to be reproducible. The wheat seed species used did not seem to have a significant impact on the experimental outcome. CONCLUSION: The result of this replication trial is a reversal of the original study, since Arsenicum album 45x inhibited wheat shoot growth instead of enhancing it. Nevertheless, high homeopathic potencies may induce statistically significant effects in biological systems. However, the magnitude and direction of these effects seem to depend on yet unknown parameters.
Assuntos
Arsenicais/farmacologia , Inibidores do Crescimento/farmacologia , Homeopatia , Modelos Biológicos , Óxidos/farmacologia , Triticum/efeitos dos fármacos , Trióxido de Arsênio , Relação Dose-Resposta a Droga , Medicina Baseada em Evidências , Germinação/efeitos dos fármacos , Humanos , Fitoterapia , Reprodutibilidade dos Testes , Triticum/crescimento & desenvolvimentoRESUMO
OBJECTIVE: Through the establishment of mouse' ovalbumin- sensitized asthmatic model and the observation of the 8-Isoprostane of plasm, to evaluate the therapeutic effects of arsenolite on asthmatic mice. METHOD: Forty-two healthy Kunming male mice were randomly divided into control group and experience groups, the latter were treated with dexamethasone, arsenolite. Lung function were tested, 8-isoprostane of plasm and WBC of BALF were measured. RESULT: Lung function improved after treating with dexamethasone or arsenolite. The WBC of asthmatic mice were significantly higher than those in control group, and decreased after treating with dexamethasone or arsenolite; 8-Isoprostane of plasm in asthmatic mice was higher than that of control group, and decreased after treating with dexamethasone or arsenolite. CONCLUSION: There is oxidant stress status in asthmatic mice. Arsenolite could lighten airway obstruction, reduce airway high response and redress oxidant stress status in asthmatic mice.
Assuntos
Antiasmáticos/farmacologia , Arsenicais/farmacologia , Asma/sangue , Dinoprosta/análogos & derivados , Materia Medica/farmacologia , Óxidos/farmacologia , Animais , Trióxido de Arsênio , Asma/induzido quimicamente , Asma/fisiopatologia , Líquido da Lavagem Broncoalveolar/citologia , Dinoprosta/sangue , Contagem de Leucócitos , Masculino , Camundongos , Ovalbumina , Distribuição Aleatória , Testes de Função RespiratóriaRESUMO
OBJECTIVE: To determine whether the potentized homoeopathic drug Arsenicum Album-30 can induce enzymatic and some other biochemical changes to repair tissue damage caused by the injection of arsenic trioxide in mice. DESIGN: Controlled laboratory study. METHODS: Mice injected with arsenic trioxide and then orally administered the homoeopathic drug were compared with control animals who either received saline only, or injections of arsenic trioxide, or injections of arsenic trioxide followed by orally administered dilute alcohol. Activities of the enzymes acid and alkaline phosphatases, lipid peroxidation and reduced glutathione, which are used as 'marker' enzymes for cytotoxicity levels, were assessed by standard methods. Histopathological slide preparations of liver were made by routine microtechnique method of tissue sectioning and staining with haematoxylin- eosin for histological examination. RESULTS: The mice fed homoeopathic drug showed positive results of tissue recovery both in terms of enzymatic and histological changes, compared to controls. CONCLUSIONS: The homoeopathic drug is capable of preventing or repairing liver damage induced by arsenic trioxide and the positive changes were also confirmed by the activities of the enzymatic markers.
Assuntos
Intoxicação por Arsênico/tratamento farmacológico , Arsenicais/efeitos adversos , Arsenicais/uso terapêutico , Doença Hepática Induzida por Substâncias e Drogas , Materia Medica/uso terapêutico , Óxidos/efeitos adversos , Animais , Trióxido de Arsênio , Hepatopatias/enzimologia , Hepatopatias/patologia , CamundongosRESUMO
OBJECTIVE: To examine the comparative efficacies of Arsenicum Album 30C and 200C and three administrative modes in protecting against the genotoxic effects produced by Arsenic trioxide injection in mice. DESIGN: Healthy mice, Mus musculus, were intraperitoneally injected with a 0.004% solution of As2O3 @1 ml/100 gms of body weight. Genotoxic effects were assessed through chromosome aberrations (CA), micronucleated erythrocytes (MNE), mitotic index (MI) and sperm head anomaly (SHA) studies, keeping suitable succussed alcohol fed (positive) and As2O3 untreated normal (negative) controls. The As2O3 treated mice were divided into three subgroups, which were orally administered with the drug a) prior to, b) after and c) both prior to and after injection of As2O3 at specific fixation intervals. RESULTS: While the CA, MNE and SHA were reduced in the drug fed series as compared to respective controls, the MI showed an apparent increase. The combined pre- and post-feeding of Arsenicum album was found to be most effective in reducing the genotoxic effects of As2O3 i200C was more effective than 30C. CONCLUSION: Arsenicum Album reduces the genotoxic effect of arsenic poisoning.
Assuntos
Antídotos , Intoxicação por Arsênico , Arsenicais/administração & dosagem , Homeopatia , Óxidos/intoxicação , Intoxicação/tratamento farmacológico , Administração Oral , Análise de Variância , Animais , Antineoplásicos , Trióxido de Arsênio , Aberrações Cromossômicas , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Camundongos , Índice Mitótico/efeitos dos fármacos , Testes de Mutagenicidade , Intoxicação/genética , Valores de ReferênciaRESUMO
OBJECTIVE: To determine whether actinomycin-D (AMD), an antibiotic, alters the reported efficacy of a potentized homoeopathic drug, Arsenicum Album, in reducing genotoxic effects produced in arsenic-trioxide-injected mice. DESIGN: Mice were separately injected with AMD, As2O3, and conjointly with AMD plus As2O3, AMD plus homoeopathic drug, AMD plus As2O3 plus homoepathic drug, and As2O3 plus homoeopathic drug in separate sets. METHODS: Several standard cytogenetical endpoints were assessed at different fixation intervals by adopting conventional techniques. RESULTS: Both Ars Alb-30 and Ars Alb-200 showed protective ability against AMD and As2O3 when injected individually, but this ability was reduced considerably in mice injected with AMD and As2O3 together. AMD itself had genotoxic effects, but also apparently reduced genotoxic effects of arsenic to some extent. CONCLUSION: AMD reduced the protective efficacy of the homoeopathic drug against arsenic. This result suggests a mechanism of action for homoeopathy, as AMD is a known transcription-blocker.
Assuntos
Antibacterianos/administração & dosagem , Arsenicais/administração & dosagem , Dactinomicina/administração & dosagem , Homeopatia , Óxidos/administração & dosagem , Animais , Trióxido de Arsênio , Aberrações Cromossômicas , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Interações Medicamentosas , Quimioterapia Combinada , Masculino , Camundongos , Testes para Micronúcleos , Índice Mitótico/efeitos dos fármacos , Distribuição Aleatória , Espermatozoides/anormalidades , Espermatozoides/efeitos dos fármacos , Transcrição Gênica/efeitos dos fármacosRESUMO
In this paper, two traditional Chinese medicinal minerals realgar and arsenopyrite, as well as their sublimates are identified in their nature, physical and optical properties, chemical compositions and trace elements. The result has shown that there are marked differences among realgar, arsenopyrite and their sublimates, and it should be particularly noted that the difference between the two sublimates will certainly affect the quality of the two minerals that are used as poisonous drug in China.
Assuntos
Materia Medica/química , Oligoelementos/análise , Trióxido de Arsênio , Arsenicais/química , Contaminação de Medicamentos , Óxidos/química , Controle de Qualidade , Sulfetos/químicaAssuntos
Arsenicais/uso terapêutico , Leucemia/tratamento farmacológico , Materia Medica/uso terapêutico , Óxidos/uso terapêutico , Sulfetos/uso terapêutico , Animais , Apoptose/efeitos dos fármacos , Trióxido de Arsênio , Humanos , Leucemia/patologia , Leucemia Promielocítica Aguda/patologia , Células Tumorais CultivadasAssuntos
Antineoplásicos/uso terapêutico , Apoptose/efeitos dos fármacos , Arsenicais/uso terapêutico , Leucemia/tratamento farmacológico , Materia Medica/uso terapêutico , Óxidos/uso terapêutico , Antineoplásicos/efeitos adversos , Antineoplásicos/farmacologia , Trióxido de Arsênio , Arsenicais/efeitos adversos , Arsenicais/farmacologia , Humanos , Células K562 , Leucemia Promielocítica Aguda/patologia , Materia Medica/efeitos adversos , Materia Medica/farmacologia , Óxidos/efeitos adversos , Óxidos/farmacologia , Células Tumorais CultivadasAssuntos
Apoptose/efeitos dos fármacos , Medicamentos de Ervas Chinesas/farmacologia , Plantas Medicinais , Animais , Trióxido de Arsênio , Arsenicais/farmacologia , Medicamentos de Ervas Chinesas/isolamento & purificação , Humanos , Materia Medica/farmacologia , Óxidos/farmacologia , Paclitaxel/isolamento & purificação , Paclitaxel/farmacologia , Plantas Medicinais/química , Quercetina/isolamento & purificação , Quercetina/farmacologia , Sesquiterpenos/isolamento & purificação , Sesquiterpenos/farmacologia , Células Tumorais CultivadasRESUMO
Groundwater arsenic contamination has become a menacing global problem. No drug is available until now to combat chronic arsenic poisoning. To examine if a potentized homeopathic remedy, Arsenicum Album-200, can effectively combat chronic arsenic toxicity induced by repeated injections of Arsenic trioxide in mice, the following experimental design was adopted. Mice (Mus musculus) were injected subcutaneously with 0.016% arsenic trioxide at the rate of 1 ml/100 g body weight, at an interval of 7 days until they were killed at day 30, 60, 90 or 120 and were divided into three groups: (i) one receiving a daily dose of Arsenicum Album-200 through oral administration, (ii) one receiving the same dose of diluted succussed alcohol (Alcohol-200) and (iii) another receiving neither drug, nor succussed alcohol. The remedy or the placebo, as the case may be, was fed from the next day onwards after injection until the day before the next injection, and the cycle was repeated until the mice were killed. Two other control groups were also maintained: one receiving only normal diet, and the other receiving normal diet and succussed alcohol. Several toxicity assays, such as cytogenetical (chromosome aberrations, micronuclei, mitotic index, sperm head anomaly) and biochemical (acid and alkaline phosphatases, lipid peroxidation), were periodically made. Compared with controls, the drug fed mice showed reduced toxicity at statistically significant levels in respect of all the parameters studied, thereby indicating protective potentials of the homeopathic drug against chronic arsenic poisoning.
Assuntos
Intoxicação por Arsênico/veterinária , Arsenicais/uso terapêutico , Homeopatia , Poluentes Químicos da Água , Animais , Antídotos , Intoxicação por Arsênico/terapia , Trióxido de Arsênio , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Camundongos , Óxidos , Distribuição Aleatória , Resultado do TratamentoRESUMO
A series of experiments, performed on plant models with ultra high dilutions (UHD) of arsenic trioxide at 45th decimal potency has been reviewed with a particular focus on variability. The working variables considered are: the number of germinated seeds out of a fixed set of 33, the stem length of wheat seedlings and the number of necrotic lesions in tobacco leaf disks inoculated with tobacco mosaic virus (TMV). A thorough comparison between treatment and control group has been proposed, considering the two main sources of variability in each series of experiments: variability within and between experiments. In treated groups, a systematic decrease in variability between-experiments, as well as a general decrease, with very few exceptions, in variability within experiments has been observed with respect to control. Variability is traditionally considered as control parameter of model systems. Our hypothesis, based on experimental evidences, proposes a new role of variability as a target of UHD action. This hypothesis may help interpret unanswered questions that keep rising in basic and clinical research in homeopathy.
Assuntos
Nicotiana/virologia , Sementes/virologia , Trióxido de Arsênio , Arsenicais , Germinação , Modelos Biológicos , Óxidos/toxicidade , Doenças das Plantas/virologia , Folhas de Planta/virologia , Reprodutibilidade dos Testes , Vírus do Mosaico do Tabaco , Triticum/efeitos dos fármacos , Triticum/crescimento & desenvolvimento , Triticum/fisiologiaRESUMO
CONTEXT: This research aimed at verifying the efficacy of homeopathic treatments by plant-based bioassays, which may be suitable for basic research, because they lack placebo effects and provide large datasets for statistical analyses. OBJECTIVE: To evaluate the effects of homeopathic treatments of arsenic trioxide (As2O3) on tobacco plants subjected to tobacco mosaic virus (TMV) inoculation as biotic stress. DESIGN: Blind, randomized experiment using tobacco leaf disks. MATERIALS AND METHODS: Tobacco plants (Nicotiana tabacum L. cultivar Samsun) carrying the TMV resistance gene N. TMV inoculated leaf disks were floated for 3 days in the following: Distilled water (control). H2O 5 and 45 decimal and centesimal potencies. As2O3 5 and 45 decimal and centesimal potencies. The main outcome measures is the number of hypersensitive lesions observed in a leaf disk. RESULTS: Homeopathic treatments of arsenic induce two effects on the plant: (i) increased resistance to TMV; (ii) decrease variability between experiments (system variability). CONCLUSIONS: In this experimental model two actions of homeopathic treatment were detected: decrease in system variability and enhancement of the natural tendency of the system towards an 'equilibrium point'.