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1.
Int. j. high dilution res ; 10(35): 75-76, june 30, 2011.
Artículo en Inglés | LILACS-Express | HomeoIndex - Homeopatia | ID: hom-10662

RESUMEN

Paracelsus once wrote: "All things are poison and nothing is without poison, only the dose permits something not to be poisonous." Latter Hahnemann formulated the law of similars, preparations which cause certain symptoms in healthy individuals if given in diluted form to patients exhibiting similar symptoms will cure it. Highly diluted natural complexes prepared according to Hahnemann?s ancient techniques may represent a new form of immunomodulatory therapy. The lack of scientific research with highly diluted products led us to investigate the in vivo and in vitro actions of commonly used medications. Here we describe the results of experimental studies aimed at verifying the effects of Mercurius solubilis, Atropa Belladonna, Lachesis muta and Bryonia alba. All medications were at 200cH dilution. Animals were maintained for 7 days and were allowed to drink the medications, which were prepared in a way that the final dilution and agitation (200cH) was performed in drinking water. The medication bottle was changed and sucussed every afternoon. Coculture of non treated mice bone marrow cells and in vitro treated peritoneal macrophages were also performed. After animal treatment the bone marrow cells were immunophenotyped with hematopoietic lineage markers on a flow cytometer. We have determined CD11b levels on bone marrow cells after culture and co-culture with treated macrophages and these macrophages were processed to scanning electron microscopy. We have observed by morphological changes that macrophages were activated after all treatments. Mercurius solubilis treated mice showed an increase in CD3 expression and in CD11b on nonadherent bone marrow cells after co-culture with in vitro treatment. Atropa Belladonna increased CD45R and decreased Ly-6G expression on bone marrow cells after animal treatment. Lachesis muta increased CD3, CD45R and, CD11c expression and decreased CD11b ex vivo and in nonadherent cells from co-culture. Bryonia alba increased Ly-6G, CD11c and CD11b expression ex vivo and when in co-culture CD11b was increased in adherent cells as well as decreased in nonadherent cells. With these results we have demonstrated that highly diluted medications act on immune cells activating macrophages, and changing the expression profile of hematopoietic lineage markers. Highly diluted medications are less toxic and cheaper than other commonly used medications and based on our observations, it is therefore conceivable that this medications which are able to act on bone marrow and immune cells may have a potential therapeutic use in clinical applications in diseases were the immune system is affected and also as regenerative medicine as it may allow proliferation and differentiation of progenitor cells. (AU)


Asunto(s)
Altas Potencias , Médula Ósea , Macrófagos , Mercurius Solubilis , Atropa belladonna , Lachesis muta , Bryonia
2.
Artículo en Inglés | LILACS, MOSAICO - Salud integrativa, HomeoIndex - Homeopatia | ID: lil-621614

RESUMEN

Paracelsus once wrote: "All things are poison and nothing is without poison, only the dose permits something not to be poisonous." Latter Hahnemann formulated the law of similars, preparations which cause certain symptoms in healthy individuals if given in diluted form to patients exhibiting similar symptoms will cure it. Highly diluted natural complexes prepared according to Hahnemann?s ancient techniques may represent a new form of immunomodulatory therapy. The lack of scientific research with highly diluted products led us to investigate the in vivo and in vitro actions of commonly used medications. Here we describe the results of experimental studies aimed at verifying the effects of Mercurius solubilis, Atropa Belladonna, Lachesis muta and Bryonia alba. All medications were at 200cH dilution. Animals were maintained for 7 days and were allowed to drink the medications, which were prepared in a way that the final dilution and agitation (200cH) was performed in drinking water. The medication bottle was changed and sucussed every afternoon. Coculture of non treated mice bone marrow cells and in vitro treated peritoneal macrophages were also performed. After animal treatment the bone marrow cells were immunophenotyped with hematopoietic lineage markers on a flow cytometer. We have determined CD11b levels on bone marrow cells after culture and co-culture with treated macrophages and these macrophages were processed to scanning electron microscopy. We have observed by morphological changes that macrophages were activated after all treatments. Mercurius solubilis treated mice showed an increase in CD3 expression and in CD11b on nonadherent bone marrow cells after co-culture with in vitro treatment. Atropa Belladonna increased CD45R and decreased Ly-6G expression on bone marrow cells after animal treatment. Lachesis muta increased CD3, CD45R and, CD11c expression and decreased CD11b ex vivo and in nonadherent cells from co-culture. Bryonia alba increased Ly-6G, CD11c and CD11b expression ex vivo and when in co-culture CD11b was increased in adherent cells as well as decreased in nonadherent cells. With these results we have demonstrated that highly diluted medications act on immune cells activating macrophages, and changing the expression profile of hematopoietic lineage markers. Highly diluted medications are less toxic and cheaper than other commonly used medications and based on our observations, it is therefore conceivable that this medications which are able to act on bone marrow and immune cells may have a potential therapeutic use in clinical applications in diseases were the immune system is affected and also as regenerative medicine as it may allow proliferation and differentiation of progenitor cells.


Asunto(s)
Ratones , Células de la Médula Ósea , Medicamento Homeopático , Macrófagos , Atropa belladonna , Lachesis muta , Mercurius Solubilis , Bryonia
3.
Ultrastruct Pathol ; 33(4): 169-74, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-19728234

RESUMEN

The performance of a moderately shorter fixation protocol for transmission electron microscopy (TEM) was evaluated by analyzing the cell structure quality after the processing. The relevance of this experimental technique is mainly based on reducting time of the steps of conventional protocols: fixation, washes, dehydration, and epoxy resin infiltration. Two sources of murine cells were used, the peritoneal and mesenteric lymph node cells. A fixation and material processing faster than usual methods can save time and improve results. Samples analysis indicated good preservation of different cell structures and organelles after this protocol.


Asunto(s)
Microscopía Electrónica de Transmisión/métodos , Fijación del Tejido/métodos , Animales , Masculino , Ratones , Tiempo
4.
BMC Cancer ; 9: 293, 2009 Aug 22.
Artículo en Inglés | MEDLINE | ID: mdl-19698142

RESUMEN

BACKGROUND: Melanoma is the most aggressive form of skin cancer, and the most rapidly expanding cancer in terms of worldwide incidence. Chemotherapeutic approaches to treat melanoma have been uniformly disappointing. A Brazilian complex homeopathic medication (CHM), used as an immune modulator, has been recommended for patients with depressed immune systems. Previous studies in mice have demonstrated that the CHM activates macrophages, induces an increase in the number of leukocytes and improves the murine response against Sarcoma-180. METHODS: Here we studied the interaction of mouse lymph node lymphocytes, co-cultured in vitro with macrophages in the presence or absence of the CHM, with B16F10 melanoma cells. RESULTS: Lymphocytes co-cultured with macrophages in the presence of the CHM had greater anti-melanoma activity, reducing melanoma cell density and increasing the number of lysed tumor cells. There was also a higher proportion of activated (CD25+) lymphocytes with increased viability. Overall, lymphocytes activated by treatment destroyed growing cancer cells more effectively than control lymphocytes. CONCLUSION: Co-culture of macrophages with lymphocytes in the presence of the CHM enhanced the anti-cancer performance of lymphocytes against a very aggressive lineage of melanoma cells. These results suggest that non-toxic therapies using CHMs are a promising alternative approach to the treatment of melanomas. In addition, they are attractive combination-therapy candidates, which may enhance the efficacy of conventional medicines by improving the immune response against tumor cells.


Asunto(s)
Linfocitos/efectos de los fármacos , Macrófagos/efectos de los fármacos , Materia Medica/farmacología , Melanoma/inmunología , Animales , Línea Celular Tumoral , Células Cultivadas , Técnicas de Cocultivo , Citotoxicidad Inmunológica , Linfocitos/inmunología , Activación de Macrófagos/efectos de los fármacos , Macrófagos/inmunología , Masculino , Melanoma/tratamiento farmacológico , Ratones
5.
Int J Biol Macromol ; 42(5): 436-40, 2008 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-18378301

RESUMEN

A structural study of the carbohydrates from Trebouxia sp., the algal symbiont of the lichen Ramalina gracilis demonstrated a galactofuranan-rich heteropolysaccharide, which was predominated by (1-->5)-linked galactofuranosyl units with side-chains in position 6 on approximately 11.0% of the units. The side-chains have very complex branched structures. This polysaccharide showed cell eliciting activity on peritoneal macrophages in vitro at all concentrations tested (1-150 microg/mL), and at 150 microg/mL an increase of 60% of macrophage activation in comparison to the control group was observed. A potential role of these carbohydrates in lichen recognition process is also discussed.


Asunto(s)
Chlorophyta/química , Galactosa/química , Líquenes/química , Activación de Macrófagos/efectos de los fármacos , Macrófagos Peritoneales/efectos de los fármacos , Polisacáridos/química , Polisacáridos/farmacología , Animales , Células Cultivadas , Macrófagos Peritoneales/ultraestructura , Espectroscopía de Resonancia Magnética , Masculino , Ratones , Microscopía Electrónica de Rastreo , Polisacáridos/aislamiento & purificación
6.
J Infect ; 52(6): 420-32, 2006 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-16386798

RESUMEN

Macrophages play a significant role in the host defence mechanism. When activated they can produce reactive oxygen species (ROS) as well as related reactive nitrogen species (RNS). ROS are produced via NAD(P)H oxidase which catalyzes superoxide (O2-) formation. It is subsequently converted to hydrogen peroxide (H2O2) by either spontaneous or enzyme-mediated dismutation. Nitric oxide synthase (NOS) catalyzes nitric oxide (NO) formation. Canova (CA) is a Brazilian medication produced with homeopathic techniques, composed of Aconitum, Thuya, Bryonia, Arsenicum, Lachesis in distilled water containing less than 1% ethanol. Previous studies demonstrated that CA is neither toxic nor mutagenic and activates macrophages decreasing the tumor necrosis factor-alpha (TNFalpha) production. In this assay we showed that macrophages triggered with Canova increased NAD(P)H oxidase activity as well as that of iNOS, consequently producing ROS and NO respectively. Cytochrome oxidase and peroxisomes activities were inhibited by NO. As NO and O2- are being produced at the same time, formation of peroxynitrite (ONOO-) may be occurring. A potential explanation is provided on how treatment with Canova may enhance immune functions which could be particularly important in the cytotoxic actions of macrophages. CA can be considered as a new adjuvant therapeutic approach to known therapies.


Asunto(s)
Venenos de Crotálidos/farmacología , Macrófagos Peritoneales/efectos de los fármacos , Materia Medica/farmacología , Óxido Nítrico/metabolismo , Oxidorreductasas/metabolismo , Extractos Vegetales/farmacología , Especies Reactivas de Oxígeno/metabolismo , Animales , Células Cultivadas , Enfermedad de Chagas/tratamiento farmacológico , Formularios Homeopáticos como Asunto/normas , Radicales Libres/análisis , Radicales Libres/metabolismo , Histocitoquímica/métodos , Leishmania/inmunología , Leishmaniasis/tratamiento farmacológico , Macrófagos Peritoneales/enzimología , Macrófagos Peritoneales/parasitología , Macrófagos Peritoneales/ultraestructura , Masculino , Ratones , Oxidorreductasas/análisis , Factores de Tiempo , Trypanosoma cruzi/inmunología , Viperidae/inmunología
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