Anti-Inflammatory Effect of Izalpinin Derived from Chromolaena leivensis: λ-Carrageenan-Induced Paw Edema and In Silico Model.

The flavonoid izalpinin was isolated from the aerial parts of Chromolaena leivensis. Its structural determination was carried out using MS and NMR spectroscopic techniques (1H, 13C). This compound was evaluated for its anti-inflammatory effect in a rat model on λ-carrageenan-induced plantar edema. Paw inflammation was measured at one-hour intervals for seven hours following the administration of λ-carrageenan. Serum creatine kinase (CK) levels were evaluated, obtaining statistically significant results with the treatments at doses of 10 mg/kg (* p < 0.01) and 20 mg/kg (** p < 0.005). The anti-inflammatory effect of the compound was evaluated by using plethysmography, and the results showed significant differences at the three concentrations (10 mg/kg, 20 mg/kg, 40 mg/kg) in the first and third hours after treatment. * p < 0.05; ** p < 0.001; **** p < 0.0001 vs. the negative control group treated with vehicle (DMSO). Lastly, molecular docking analyses reveal that izalpinin has a strong binding affinity with five target proteins involved in the inflammatory process. The analysis using molecular dynamics allowed demonstrating that the ligand-protein complexes present acceptable stability, with RMSD values within the allowed range.

Effects of additional agitation process on the spectrophotometric profiles of homeopathic high dilutions

INTRODUCTION: Conventional homeopathy advocates giving 10 strokes (agitation/succussions) to a prescription bottle containing liquid dilution, before taking it. To scientifically support such activity, it must be based on studies on the physicochemical aspects of the memory of water and agitated water chains, supplemented with spectrometry. OBJECTIVE: To analyze spectrometric profiles of homeopathic high dilutions, comparing additionally agitated and non-agitated dilutions, and to define differences according to each dilution´s kingdom. METHODOLOGY: Homeopathic dilutions were prepared using a ratio of 1:100 obtaining dilutions from 1cH to 15cH. Measurements of absorbance of 15cH dilutions were performed at 340 nm and 200 nm, with and without additional agitation. RESULTS: Statistically significant differences were found between agitated and non-agitated dilutions (p <0.05) for Apis mellifica, Bufo rana, and Calcium iodatum, with a decrease in the mean value of absorbance (340 nm) in agitated solutions. For A nica montana, Matricaria chamomilla, Coffea arabica, Pulsatilla nigricans, Calcium iodatum and Natrum muriaticum, the absorbance values increased; these values decreased for Apis and Bufo. In addition, measurements were performed with a shorter wavelength (200 nm); it was observed that there are significant differences for all homeopathic dilutions studied. Additionally, when comparing the mean values of the absorbance for each kingdom, and observing the agitation factor, a statistically significant difference was found in the animal kingdom (p<0.05), having lower absorbance for agitated dilutions. CONCLUSION: Comparisons of the spectrometric profiles of agitated and non-agitated solutions allow to observe that there is a difference of the absorbance when comparing a previously agitated solution and a solution with no agitation before taking it.

Effects of additional agitation process on the spectrophotometric profiles of homeopathic high dilutions

Introduction: Conventional homeopathy advocates giving 10 strokes (agitation/succussions) to a prescription bottle containing liquid dilution, before taking it. To scientifically support such activity, it must be based on studies on the physicochemical aspects of the memory of water and agitated water chains, supplemented with spectrometry. Objective: To analyze spectrometric profiles of homeopathic high dilutions, comparing additionally agitated and non-agitated dilutions, and to define differences according to each dilution´s kingdom. Methodology: Homeopathic dilutions were prepared using a ratio of 1:100 obtaining dilutions from 1cH to 15cH. Measurements of absorbance of 15cH dilutions were performed at 340 nm and 200 nm, with and without additional agitation. Results: Statistically significant differences were found between agitated and non-agitated dilutions (p <0.05) for Apis mellifica, Bufo rana, and Calcium iodatum, with a decrease in the mean value of absorbance (340 nm) in agitated solutions. For A nica montana, Matricaria chamomilla, Coffea arabica, Pulsatilla nigricans, Calcium iodatum and Natrum muriaticum, the absorbance values increased; these values decreased for Apis and Bufo. In addition, measurements were performed with a shorter wavelength (200 nm); it was observed that there are significant differences for all homeopathic dilutions studied. Additionally, when comparing the mean values of the absorbance for each kingdom, and observing the agitation factor, a statistically significant difference was found in the animal kingdom (p<0.05), having lower absorbance for agitated dilutions. Conclusion: Comparisons of the spectrometric profiles of agitated and non-agitated solutions allow to observe that there is a difference of the absorbance when comparing a previously agitated solution and a solution with no agitation before taking it. (AU)