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- W1491466716 abstract "Introduction: Candidiasis is an opportunist infection, caused by yeast of the genus Candida, which emerges as one of the main causes of systemic infections in hospitalized patients. Candida albicans is the most common causing agent of these infections. According to the Brazilian Homeopathic Pharmacopeia[1], nosodes are medicines compounded from chemically undefined biological products. Living nosodes are prepared using the etiologic agent of an illness in its infective form, were first developed by Brazilian physician Roberto Costa (RC). Roberto Costa’s research indicated that living nosodes present a higher capability to stimulate the host’s immunological system [2]. 
 Aim: This study aims to evaluate cellular alterations induced in C. albicans yeasts and RAW 264-7 macrophages by Candida albicans RC. 
 Methodology: To prepare Candida albicans RC, one part of C. albicans infective yeast suspension (108 cell/ml) was diluted in 9 parts of sterile distilled water and submitted to 100 mechanical succussions. This process was successively repeated to the potencies of 12x and 30x1. Water 30x was prepared by the same technique, as control. The cell viability of C. albicans previously treated with nosodes in both potencies and respective controls was evaluated using the samples at the concentration of 10% (V/V), in a volume of 1ml, distributed in 1-3 days. The viability of the yeast cells was analyzed by MTT (3-(4,5-dimetiltiazol-2-il)-2,5-difeniltetrazolic) (5mg/ml) assay [3] and by Propidium Iodide (PI) incorporation methods. Additionally, using macrophages RAW 264-7 as a cell model, Nitric Oxide (NO) production and cell viability were also evaluated. For this, the following protocol of cell treatment was employed: on each experimental day, RAW 264-7 cells were treated 4 times (4 stimuli) with RC nosode 30x at the concentration of 10% (V/V). 
 Results: The nosodes (12x and 30x) did not present cytotoxic effects on macrophage cells (n=1), or on C. albicans yeasts (n=2), as detected by MTT and PI methods. Moreover, no statistically significant differences on NO production were detected among the experimental groups (n=6). 
 Conclusion: Preliminary results of in vitro assays indicate that nosodes (12x and 30x) do not alter mitochondrial activity or cell viability of C. albicans. Similarly, treatment by RC nosodes does not seem to alter NO release and mitochondrial activity of RAW macrophages. New experiments are being performed to confirm these preliminary data." @default.
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- W1491466716 date "2021-12-21" @default.
- W1491466716 modified "2023-09-27" @default.
- W1491466716 title "Cellular Alterations Induced by Candida albicans RC Nosodes: an in vitro Study" @default.
- W1491466716 doi "https://doi.org/10.51910/ijhdr.v11i40.600" @default.
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