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1.
Digestion ; 102(3): 326-334, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32408299

RESUMO

BACKGROUND: Before the discovery of immunological and haematological functions of the spleen, it had for centuries been considered to be a digestive organ of variable size with a role in the portal vein system and nutritional metabolism. In the 19th and 20th centuries, volume changes in the spleen related to nutrition were studied using plethysmographic measurements. Rhythmical and regulatory functions of the spleen were demonstrated in the haemodynamics of the splanchnic region and were described as a "hepatolienal pendulum," a "Windkessel function," or a "pressure compensation." These studies were mainly published in German-speaking countries and have not, as far as is known, been discussed in the English-speaking world so far. SUMMARY: This review explores the historical development of the rhythmical regulatory function of the spleen in the splanchnic region. Older studies and results are followed up in the modern literature, wherever possible, up to the present. The clinical relevance is illustrated with portal hypertension (with congestive or hyperdynamic splenomegaly), coeliac disease, and chronic inflammatory bowel diseases (with functional hyposplenism). Key Message: The spleen's rhythmical regulatory function in nutrition is based on an autonomous rhythm comprising cycles of contractions and dilations of the spleen of around 1 min. These cycles can be influenced by sympathetically mediated single contractions with a release of pooled blood or by portal vein congestion. After food ingestion, the spleen responds either with contraction according to a vasomotor reaction or postprandial congestion with significant increases in volume. The spleen's rhythmical function is lost in the clinical picture of portal hypertension or in coeliac disease and chronic inflammatory bowel diseases. In the aforementioned gastrointestinal diseases, we recommend taking more account of the haemodynamics between the spleen, liver, and intestine. New innovative techniques for recording splenograms are required which, besides elastographic measurements of spleen stiffness, could offer an important tool for early detection, diagnosis, and therapeutic evaluation.


Assuntos
Hipertensão Portal , Baço , Humanos , Hipertensão Portal/diagnóstico , Hipertensão Portal/etiologia , Veia Porta , Esplenomegalia
2.
Arch Gynecol Obstet ; 293(2): 335-43, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26141654

RESUMO

PURPOSE: While a variety of factors may play a role in fetal and neonatal deaths, postmaturity as a cause of stillbirth remains a topic of debate. It still is unclear, whether induction of labor at a particular gestational age may prevent fetal deaths. METHODS: A multidisciplinary working group was granted access to the most recent set of relevant German routine perinatal data, comprising all 5,291,011 hospital births from 2005 to 2012. We analyzed correlations in rates of induction of labor (IOL), perinatal mortality (in particular stillbirths) at different gestational ages, and fetal morbidity. Correlations were tested with Pearson's product-moment analysis (α = 5 %). All computations were performed with SPSS version 22. RESULTS: Induction rates rose significantly from 16.5 to 21.9 % (r = 0.98; p < 0.001). There were no significant changes in stillbirth rates (0.28-0.35 per 100 births; r = 0.045; p = 0.806). Stillbirth rates 2009-2012 remained stable in all gestational age groups irrespective of induction. Fetal morbidity (one or more ICD-10 codes) rose significantly during 2005-2012. This was true for both children with (from 33 to 37 %, r = 0.784, p < 0.001) and without (from 25 to 31 %, (r = 0.920, p < 0.001) IOL. CONCLUSIONS: An increase in IOL at term is not associated with a decline in perinatal mortality. Perinatal morbidity increased with and without induction of labor.


Assuntos
Mortalidade Fetal/tendências , Trabalho de Parto Induzido/estatística & dados numéricos , Mortalidade Perinatal/tendências , Nascimento a Termo , Feminino , Morte Fetal , Alemanha/epidemiologia , Idade Gestacional , Humanos , Lactente , Mortalidade Infantil , Trabalho de Parto Induzido/tendências , Masculino , Morte Perinatal , Gravidez , Natimorto/epidemiologia
3.
BMC Complement Altern Med ; 15: 143, 2015 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-25947100

RESUMO

BACKGROUND: Decision-making during pregnancy regarding different options of care can be difficult, particularly when risks of intervention versus no intervention for mother and baby are unclear. Unbiased information and support for decision making may be beneficial in these situations. The management of normal pregnancies at and beyond term is an example of such a situation. In order to determine the need to develop an evidence-based decision aid this paper searches, analyses and appraises patient decision aids and patient information leaflets regarding care options in cases of late term and post-term pregnancies, including complementary and alternative medicine (CAM). METHODS: A literature search was carried out in a variety of lay and medical databases. INCLUSION CRITERIA: written information related to uncomplicated singleton pregnancies and targeted at lay people. Analysis and appraisal of included material by means of quality criteria was set up based on the International Patient Decision Aid Standards accounting for evidence-basing of CAM options. RESULTS: Inclusion of two decision aids and eleven leaflets from four decision aids and sixteen leaflets. One decision aid met the quality criteria almost completely, the other one only insufficiently despite providing some helpful information. Only one leaflet is of good quality, but cannot substitute a decision aid. CONCLUSIONS: There is an urgent need for the design of an evidence-based decision aid of good quality for late-term or post-term pregnancy, particularly in German language.


Assuntos
Tomada de Decisões , Trabalho de Parto Induzido , Educação de Pacientes como Assunto , Assistência Perinatal , Conduta Expectante , Técnicas de Apoio para a Decisão , Feminino , Humanos , Gravidez
4.
BMC Complement Altern Med ; 15: 130, 2015 Apr 24.
Artigo em Inglês | MEDLINE | ID: mdl-25902944

RESUMO

BACKGROUND: Macrophages are highly versatile cells that play an important role in tumour microenvironment. Tumour associated macrophages (TAMs) have been linked to both, good or bad prognosis of several cancer types depending on their number, composition and polarization. Viscum album lipophilic extract (VALE) contains several pentacyclic triterpenes known to modulate the activity of monocytes and other immune cells and to exhibit anticancer properties. In our in vitro study, we investigated the effect of tumour cell lines on macrophage polarization and monocyte chemotactic transmigration and examined the modulatory potential of VALE and its predominant triterpene oleanolic acid (OA). METHODS: Human peripheral blood monocytes were differentiated into monocyte derived macrophages (MDM) using M-CSF and polarized into M1 by IFN-γ and LPS and into M2 macrophages by IL-4 and IL-13 or by co-culture with two different tumour cell lines. Polarized macrophages were subsequently treated with VALE or OA. Phenotypic markers and cytokines were assessed by flow cytometry and immunoanalysis. Migration of human peripheral blood monocytes induced by monocyte chemotactic protein-1 (MCP-1) or supernatants of different tumour cell lines under the influence of VALE or OA was measured in a chemotaxis transmigration assay. RESULTS: In vitro polarized M1 and M2 type macrophages revealed specific phenotypic patterns and tumour cell co-cultured MDM displayed ambiguous phenotypes with M1 as well as M2 associated markers. VALE and OA showed modest influence on cell surface marker profile and cytokine expression of tumour cell co-cultured macrophages. All tumour cell supernatants markedly enhanced the migratory activity of monocytes. VALE and OA significantly inhibited MCP-1 induced monocyte transmigration, whereas monocyte migration initiated by tumour cell derived supernatants was not affected. CONCLUSIONS: In our study we reconfirmed that co-culture with different tumour cell lines can result in a mixed macrophage phenotype with M1 as well as M2 patterns, a finding that is important for a better understanding of tumour microenvironment functions. Moreover, we demonstrated that VALE shows slight immunomodulatory effects on tumour cell co-cultured macrophages and modulates monocyte chemotactic transmigration in vitro, indicating promising possibilities of triterpenes from Viscum album L. to contribute in a multimodal concept of anti-cancer therapy in future. Our data contribute to an understanding of monocyte function and macrophage polarization in vitro and of the possibility to influence their behaviour by triterpene containing mistletoe extracts.


Assuntos
Citocinas/metabolismo , Macrófagos/efeitos dos fármacos , Monócitos/efeitos dos fármacos , Neoplasias/metabolismo , Ácido Oleanólico/farmacologia , Extratos Vegetais/farmacologia , Viscum album/química , Biomarcadores/metabolismo , Diferenciação Celular/efeitos dos fármacos , Linhagem Celular Tumoral , Quimiocina CCL2/metabolismo , Citometria de Fluxo , Humanos , Interleucina-13/metabolismo , Interleucina-4/metabolismo , Fator Estimulador de Colônias de Macrófagos/metabolismo , Fenótipo
5.
BMC Complement Altern Med ; 14: 191, 2014 Jun 16.
Artigo em Inglês | MEDLINE | ID: mdl-24934998

RESUMO

BACKGROUND: Integrative medicine (IM) integrates evidence-based Complementary and Alternative Medicine (CAM) with conventional medicine (CON). Medical schools offer basic CAM electives but in postgraduate medical training (PGMT) little has been done for the integration of CAM. An exception to this is anthroposophic medicine (AM), a western form of CAM based on CON, offering an individualized holistic IM approach. AM hospitals are part of the public healthcare systems in Germany and Switzerland and train AM in PGMT. We performed the first quality evaluation of the subjectively perceived quality of this PGMT. METHODS: An anonymous full survey of all 214 trainers (TR) and 240 trainees (TE) in all 15 AM hospitals in Germany and Switzerland, using the ETHZ questionnaire for annual national PGMT assessments in Switzerland (CH) and Germany (D), complemented by a module for AM. Data analysis included Cronbach's alpha to assess internal consistency questionnaire scales, 2-tailed Pearson correlation of specific quality dimensions of PGMT and department size, 2-tailed Wilcoxon Matched-Pair test for dependent variables and 2-tailed Mann-Whitney U-test for independent variables to calculate group differences. The level of significance was set at p < 0.05. RESULTS: Return rates were: D: TE 89/215 (41.39%), TR 78/184 (42.39%); CH: TE 19/25 (76%), TR 22/30 (73.33%). Cronbach's alpha values for TE scales were >0.8 or >0.9, and >0.7 to >0.5 for TR scales. Swiss hospitals surpassed German ones significantly in Global Satisfaction with AM (TR and TE); Clinical Competency training in CON (TE) and AM (TE, TR), Error Management, Culture of Decision Making, Evidence-based Medicine, and Clinical Competency in internal medicine CON and AM (TE). When the comparison was restricted to departments of comparable size, differences remained significant for Clinical Competencies in AM (TE, TR), and Culture of Decision Making (TE). CON received better grades than AM in Global Satisfaction and Clinical Competency. Quality of PGMT depended on department size, working conditions and structural training features. CONCLUSION: The lower quality of PGMT in German hospitals can be attributed to larger departments, more difficult working conditions, and less favorable structural features for PGMT in AM, possibly also in relation to increased financial pressure.


Assuntos
Medicina Antroposófica/psicologia , Pessoal de Saúde/psicologia , Medicina Integrativa/educação , Educação de Pós-Graduação em Medicina/métodos , Feminino , Alemanha , Saúde Holística/educação , Saúde Holística/normas , Hospitais/normas , Hospitais/estatística & dados numéricos , Humanos , Medicina Integrativa/normas , Masculino , Programas Nacionais de Saúde , Inquéritos e Questionários , Suíça
6.
Acta Radiol ; 54(7): 795-9, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23535184

RESUMO

BACKGROUND: Psychological distress for patients undergoing magnetic resonance imaging (MRI) may range from mild anxiety to serious panic attacks. Scents associated with a sense of wellbeing have been used to diminish psychological stress in various clinical conditions. PURPOSE: To evaluate the influence of inhalation aromatherapy in the reduction of artifacts in patients undergoing MRI. MATERIAL AND METHODS: Based on the assumption aromatherapy will lead to significant reduction of patient-related motion artifacts (PRMA) in MRI, a randomized controlled trial with two groups of 54 patients was enrolled. The primary endpoint was the number of sequences with PRMAs. Secondary outcomes were improvements of mood measured with the ASTS questionnaire as well as patient's recommendation to fellow patients tested by a visual analogue scale. Incidence and intensity of adverse events were documented. RESULTS: Ninety-five patients were included in the statistical analysis. We were not able to detect a significant reduction of PRMAs. There were also no significant differences in mood or in relation to the feeling before and after examination. The only differences that neared significance were "positive mood" and "recommendation". No adverse reaction was observed. CONCLUSION: Although aromatherapy has been effective in enhancing patient's mood or wellbeing in a variety of stressful clinical settings, we were not able to find a similar effect. Neither the primary nor the secondary endpoints reached a clinical meaningful magnitude.


Assuntos
Aromaterapia/métodos , Imageamento por Ressonância Magnética , Estresse Psicológico/prevenção & controle , Adulto , Idoso , Artefatos , Distribuição de Qui-Quadrado , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
7.
BMC Complement Altern Med ; 13: 124, 2013 Jun 03.
Artigo em Inglês | MEDLINE | ID: mdl-23731970

RESUMO

BACKGROUND: Personalised (or individualised) medicine in the days of genetic research refers to molecular biologic specifications in individuals and not to a response to individual patient needs in the sense of person-centred medicine. Studies suggest that patients often wish for authentically person-centred care and personal physician-patient interactions, and that they therefore choose Complementary and Alternative medicine (CAM) as a possibility to complement standard care and ensure a patient-centred approach. Therefore, to build on the findings documented in these qualitative studies, we investigated the various concepts of individualised medicine inherent in patients' reasons for using CAM. METHODS: We used the technique of meta-ethnography, following a three-stage approach: (1) A comprehensive systematic literature search of 67 electronic databases and appraisal of eligible qualitative studies related to patients' reasons for seeking CAM was carried out. Eligibility for inclusion was determined using defined criteria. (2) A meta-ethnographic study was conducted according to Noblit and Hare's method for translating key themes in patients' reasons for using CAM. (3) A line-of-argument approach was used to synthesize and interpret key concepts associated with patients' reasoning regarding individualized medicine. RESULTS: (1) Of a total of 9,578 citations screened, 38 studies were appraised with a quality assessment checklist and a total of 30 publications were included in the study. (2) Reasons for CAM use evolved following a reciprocal translation. (3) The line-of-argument interpretations of patients' concepts of individualised medicine that emerged based on the findings of our multidisciplinary research team were "personal growth", "holism", "alliance", "integrative care", "self-activation" and "wellbeing". CONCLUSIONS: The results of this meta-ethnographic study demonstrate that patients' notions of individualised medicine differ from the current idea of personalised genetic medicine. Our study shows that the "personal" patients' needs are not identified with a specific high-risk group or with a unique genetic profile in the sense of genome-based "personalised" or "individualised" medicine. Thus, the concept of individualised medicine should include the humanistic approach of individualisation as expressed in concepts such as "personal growth", "holistic" or "integrative care", doctor-patient "alliance", "self-activation" and "wellbeing" needs. This should also be considered in research projects and the allocation of healthcare resources.


Assuntos
Terapias Complementares/psicologia , Terapias Complementares/estatística & dados numéricos , Pacientes/psicologia , Medicina de Precisão/psicologia , Medicina de Precisão/estatística & dados numéricos , Antropologia Cultural , Atitude Frente a Saúde , Bases de Dados Bibliográficas , Humanos
8.
BMC Complement Altern Med ; 13: 125, 2013 Jun 03.
Artigo em Inglês | MEDLINE | ID: mdl-23731997

RESUMO

BACKGROUND: The aim of this publication is to present a case study of how to locate and appraise qualitative studies for the conduct of a meta-ethnography in the field of complementary and alternative medicine (CAM). CAM is commonly associated with individualized medicine. However, one established scientific approach to the individual, qualitative research, thus far has been explicitly used very rarely. This article demonstrates a case example of how qualitative research in the field of CAM studies was identified and critically appraised. METHODS: Several search terms and techniques were tested for the identification and appraisal of qualitative CAM research in the conduct of a meta-ethnography. Sixty-seven electronic databases were searched for the identification of qualitative CAM trials, including CAM databases, nursing, nutrition, psychological, social, medical databases, the Cochrane Library and DIMDI. RESULTS: 9578 citations were screened, 223 articles met the pre-specified inclusion criteria, 63 full text publications were reviewed, 38 articles were appraised qualitatively and 30 articles were included. The search began with PubMed, yielding 87% of the included publications of all databases with few additional relevant findings in the specific databases. CINHAL and DIMDI also revealed a high number of precise hits. Although CAMbase and CAM-QUEST® focus on CAM research only, almost no hits of qualitative trials were found there. Searching with broad text terms was the most effective search strategy in all databases. CONCLUSIONS: This publication presents a case study on how to locate and appraise qualitative studies in the field of CAM. The example shows that the literature search for qualitative studies in the field of CAM is most effective when the search is begun in PubMed followed by CINHAL or DIMDI using broad text terms. Exclusive CAM databases delivered no additional findings to locate qualitative CAM studies.


Assuntos
Terapias Complementares/normas , Antropologia Cultural , Bases de Dados Bibliográficas , Estudos de Avaliação como Assunto , Humanos , Pesquisa Qualitativa , Relatório de Pesquisa/normas
9.
BMC Cancer ; 12: 206, 2012 May 30.
Artigo em Inglês | MEDLINE | ID: mdl-22646670

RESUMO

BACKGROUND: Circulating tumor cells (CTCs) are detectable in peripheral blood of metastatic breast cancer patients (MBC). In this paper we evaluate a new CTC separation method based on a combination of anti-EpCAM- and anti-cytokeratin magnetic cell separation with the aim to improve CTC detection with low target antigen densities. METHODS: Blood samples of healthy donors spiked with breast cancer cell line HCC1937 were used to determine accuracy and precision of the method. 10 healthy subjects were examined to evaluate specificity. CTC counts in 59 patients with MBC were measured to evaluate the prognostic value on overall survival. RESULTS: Regression analysis of numbers of recovered vs. spiked HCC1937 cells yielded a coefficient of determination of R(2) = 0.957. The average percentage of cell recovery was 84%. The average within-run coefficient of variation for spiking of 185, 85 and 30 cells was 14%. For spiking of 10 cells the within-run CV was 30%. No CTCs were detected in blood of 10 healthy subjects examined. A standard threshold of 5 CTC/7.5 ml blood as a cut-off point between risk groups led to a highly significant prognostic marker (p < 0.001). To assess the prognostic value of medium CTC levels we additionally considered a low (CTC-L: 0 CTC), a medium (CTC-M: 1-4 CTC) and a high risk group (CTC-H: ≥5 CTC). The effect of this CTC-LMH marker on overall survival was significant as well (p < 0.001). A log-ratio test performed to compare the model with 3 vs. the model with 2 risk groups rejected the model with 2 risk groups (p = 0.026). For CTC as a count variable, we propose an offset reciprocal transformation 1/(1 + x) for overall survival prediction (p < 0.001). CONCLUSIONS: We show that our CTC detection method is feasible and leads to accurate and reliable results. Our data suggest that a refined differentiation between patients with different CTC levels is reasonable.


Assuntos
Anticorpos , Antígenos de Neoplasias/metabolismo , Neoplasias da Mama/diagnóstico , Moléculas de Adesão Celular/metabolismo , Queratinas/metabolismo , Células Neoplásicas Circulantes/metabolismo , Idoso , Anticorpos/imunologia , Antígenos de Neoplasias/imunologia , Biomarcadores Tumorais/metabolismo , Neoplasias da Mama/mortalidade , Neoplasias da Mama/patologia , Moléculas de Adesão Celular/imunologia , Linhagem Celular Tumoral , Molécula de Adesão da Célula Epitelial , Feminino , Humanos , Queratinas/imunologia , Pessoa de Meia-Idade , Metástase Neoplásica , Prognóstico , Reprodutibilidade dos Testes , Sensibilidade e Especificidade
10.
Artigo em Inglês | MEDLINE | ID: mdl-22852023

RESUMO

The majority of research on yoga focuses on its psychophysiological and therapeutic benefits, while the spiritual aspects are rarely addressed. Changes of specific aspects of spirituality were thus investigated among 160 individuals (91% women, mean age 40.9 ± 8.3 years; 57% Christians) starting a 2-year yoga teacher training. We used standardized questionnaires to measure aspects of spirituality (ASP), mindfulness (FMI-Freiburg Mindfulness Inventory), life satisfaction (BMLSS-Brief Multidimensional Life Satisfaction Scale), and positive mood (lightheartedness/relief). At the start of the course, scores of the respective ASP subscales for search for insight/wisdom, transcendence conviction, and conscious interactions/compassion were high, while those for religious orientation were low. Within the 6 month observation period, both conscious interactions/compassion (effect size, Cohen's d = .33), Religious orientation (d = .21), Lightheartedness/Relief (d = .75) and mindfulness (d = .53) increased significantly. Particularly non-religious/non-spiritual individuals showed moderate effects for an increase of conscious interactions/compassion. The results from this study suggest that an intensive yoga practice (1) may significantly increase specific aspects of practitioners' spirituality, mindfulness, and mood, (2) that these changes are dependent in part on their original spiritual/religious self-perception, and (3) that there are strong correlations amongst these constructs (i.e., conscious interactions/compassion, and mindfulness).

11.
Glob Adv Health Med ; 11: 21649561211073079, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35281956

RESUMO

Background: Regulatory assessment of anthroposophic medicinal products (AMPs) can be challenging due to their specific features. Objective: The aim of this paper is therefore to provide adequate scientific information on AMPs for regulatory purposes. Methods: A literature review was executed with database searches in PubMed, Cinahl, Merkurstab, Anthromedics, and https://iaap-pharma.org/. Search terms were: anthroposophic medicinal products, anthroposophic medicines, anthroposophic pharmacy. There was no language restriction; searches were executed from onset until June 11, 2020. In addition, experts were invited to suggest relevant literature. Results: Eighty-seven of 660 identified publications were included. The system of anthroposophic medicine (AM) with its conceptual background and various aspects of AMPs was described: definition, pharmaceutical properties, an example of AMP development, use in clinical practice, similarities with and differences to conventional medicinal products, societal aspects, scientific and regulatory assessment. Conclusion: AMPs are part of the integrative whole medical system of AM. AMPs are manufactured according to Good Manufacturing Practice and national drug regulations and have an excellent safety status; the limited available evidence suggests clinical benefits. Current drug regulation of AMPs in the EU and most European countries does not take the special properties of AMPs into account. Future research should focus on appropriate methodologies for the evaluation of effects of AMPs as part of the AM whole medical system, the scientific quality of its non-atomistic holistic ontological position, and the integration of AM and conventional medicine in clinical practice. Future policies should focus on appropriate ways of addressing regulatory challenges to AMPs.

12.
Artigo em Inglês | MEDLINE | ID: mdl-20953427

RESUMO

Several mind body medicine interventions require an active participation of the practitioners. We intended to develop a questionnaire to operationalize and measure the "inner correspondence" of individuals practicing Yoga or Eurythmy Therapy. In an anonymous cross-sectional study we enrolled 501 individuals (61% yoga). Exploratory factor analysis (study 1) of the 12-item instrument (Cronbach's alpha = .84) pointed to a 3-factor solution, with one major scale and good internal consistency (alpha = .83) and two minor scales with weak internal consistency. To improve the quality of the main scale, we added 8 new items which were tested in a sample of 135 individuals (study 2: 71% Yoga). Factor analysis confirmed a 12-item single factor (alpha = .95), that is, Inner Correspondence/Peaceful Harmony with Practices (ICPH). The scale correlated strongly with mindfulness (FMI; r > .50), moderately with life and patient satisfaction (BMLSS; r between .32 and .43), and weakly negative with symptom score (VAS; r = -.23). In conclusion, the scale ICPH was confirmed as a relevant tool to measure the inner correspondence and feelings of peacefulness with practices. It can be used in clinical studies to assess the efficacy of mind-body practices involving physical movements.

13.
Artigo em Inglês | MEDLINE | ID: mdl-19474239

RESUMO

Homeopathic preparations are used in homeopathy and anthroposophic medicine. Although there is evidence of effectiveness in several clinical studies, including double-blinded randomized controlled trials, their nature and mode of action could not be explained with current scientific approaches yet. Several physical methods have already been applied to investigate homeopathic preparations but it is yet unclear which methods are best suited to identify characteristic physicochemical properties of homeopathic preparations. The aim of this study was to investigate homeopathic preparations with UV-spectroscopy. In a blinded, randomized, controlled experiment homeopathic preparations of copper sulfate (CuSO(4); 11c-30c), quartz (SiO(2); 10c-30c, i.e., centesimal dilution steps) and sulfur (S; 11×-30×, i.e., decimal dilution steps) and controls (one-time succussed diluent) were investigated using UV-spectroscopy and tested for contamination by inductively coupled plasma mass spectrometry (ICP-MS). The UV transmission for homeopathic preparations of CuSO(4) preparations was significantly lower than in controls. The transmission seemed to be also lower for both SiO(2) and S, but not significant. The mean effect size (95% confidence interval) was similar for the homeopathic preparations: CuSO(4) (pooled data) 0.0544% (0.0260-0.0827%), SiO(2) 0.0323% (-0.0064% to 0.0710%) and S 0.0281% (-0.0520% to 0.1082%). UV transmission values of homeopathic preparations had a significantly higher variability compared to controls. In none of the samples the concentration of any element analyzed by ICP-MS exceeded 100 ppb. Lower transmission of UV light may indicate that homeopathic preparations are less structured or more dynamic than their succussed pure solvent.

14.
ScientificWorldJournal ; 11: 568-83, 2011 Mar 07.
Artigo em Inglês | MEDLINE | ID: mdl-21403975

RESUMO

This study investigated the response of arsenic-stressed yeast (Saccharomyces cerevisiae) towards homeopathically potentized Arsenicum album, a duckweed nosode, and gibberellic acid. The three test substances were applied in five potency levels (17x, 18x, 24x, 28x, 30x) and compared to controls (unsuccussed and succussed water) with respect to influencing specific growth parameters. Five independent experiments were evaluated for each test substance. Additionally, five water control experiments were analyzed to investigate the stability of the experimental setup (systematic negative control experiments). All experiments were randomized and blinded. Yeast grew in microplates over a period of 38 h in either potentized substances or water controls with 250 mg/l arsenic(V) added over the entire cultivation period. Yeast's growth kinetics (slope, Et50, and yield) were measured photometrically. The test system exhibited a low coefficient of variation (slope 1.2%, Et50 0.3%, yield 2.7%). Succussed water did not induce any significant differences compared to unsuccussed water. Data from the control and treatment groups were both pooled to increase statistical power. In this study with yeast, no significant effects were found for any outcome parameter or any homeopathic treatment. Since in parallel experiments arsenic-stressed duckweed showed highly significant effects after application of potentized Arsenicum album and duckweed nosode preparations from the same batch as used in the present study, some specific properties of this experimental setup with yeast must be responsible for the lacking response.


Assuntos
Arsênio/toxicidade , Homeopatia , Saccharomyces cerevisiae/efeitos dos fármacos , Saccharomyces cerevisiae/crescimento & desenvolvimento
15.
Homeopathy ; 100(4): 275-87, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21962204

RESUMO

BACKGROUND: Experimental research on the effects of homeopathic treatments on impaired plants was last reviewed in 1990. OBJECTIVES: To compile a systematic review of the existing literature on basic research in homeopathy with abiotically stressed plants using predefined criteria. METHODS: The literature search was carried out on publications that reported experiments on homeopathy using abiotically stressed whole plants, seeds, plant parts and cells from 1920 to 2010. Outcomes had to be measured by established procedures and statistically evaluated. Using of a Manuscript Information Score (MIS) we identified those publications that provided sufficient information for proper interpretation (MIS≥5). A further evaluation was based on the use of adequate controls to investigate specific effects of homeopathic preparations and on the use of systematic negative control experiments. RESULTS: A total of 34 publications with abiotically stressed plants was identified, published between 1965 and 2010. The 34 publications described a total of 37 experimental studies. Twenty-two studies included statistics, 13 had a MIS≥5, 8 were identified with adequate controls and 4 with negative control experiments. Significant and reproducible effects with decimal and centesimal potencies were found, including dilution levels beyond Avogadro's number. One experimental model was independently assessed by another research team and yielded inverted results compared to the original trial. CONCLUSIONS: Abiotically stressed plant models seem to be a useful approach to investigate homeopathic basic research questions, but more experimentation and especially more independent replication trials are needed. Systematic negative control experiments should be implemented on a routine basis to exclude false-positive results.


Assuntos
Extratos Vegetais/química , Plantas Medicinais/crescimento & desenvolvimento , Homeopatia , Humanos , Projetos de Pesquisa , Soluções
16.
Zhong Xi Yi Jie He Xue Bao ; 9(8): 847-56, 2011 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-21849145

RESUMO

OBJECTIVE: The manifold studies on the usage of complementary and alternative medicine (CAM) indicate that its utilization differs with respect to socio-cultural background, gender, age and underlying disease. This study intended to analyze the usage of specific CAM practices among a population of older German adults with health insurance coverage. METHODS: Data of 5 830 older individuals who participated in an anonymous cross sectional survey among German insurance beneficiaries were analyzed with respect to usage of CAM treatments applied by medical doctors or non-medical practitioners within the last 5 years. RESULTS: The most frequently used approaches were acupuncture/traditional Chinese medicine (21%), homeopathy (21%), movement therapies/physical exercises (19%), osteopathy/chiropractic (12%), herbs/phytotherapy (7%), diets/specific food recommendations (6%) and foot reflexology (5%). Anthroposophic medicine was used only to a minor degree. Acupuncture and homeopathy users were likely to choose more than one CAM treatment simultaneously, particularly the combination of homeopathy and acupuncture. Moreover, this study can confirm significant differences between women and men in the use of the main relevant CAM interventions. CONCLUSION: The relative proportion of acupuncture usage was similar to homeopathy, which is an alternative whole medical system originating from Western Europe. This means that an Eastern alternative system is established also in Germany. In several cases not only one CAM treatment was used but distinct combinations existed (particularly homeopathy and acupuncture); thus one should be cautious to draw predictive conclusions from studies with broad and unspecific CAM categories, for among them there are several therapies which should not be regarded as CAM.


Assuntos
Terapia por Acupuntura , Terapias Complementares , Homeopatia , Idoso , Atitude do Pessoal de Saúde , Quiroprática , Estudos Transversais , Atenção à Saúde , Feminino , Alemanha , Humanos , Masculino , Massagem , Medicina Tradicional Chinesa , Pessoa de Meia-Idade , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Fitoterapia , Inquéritos e Questionários
17.
BMC Public Health ; 10: 507, 2010 Aug 20.
Artigo em Inglês | MEDLINE | ID: mdl-20727191

RESUMO

BACKGROUND: We examined which adaptive coping strategies, referring to the concept of 'locus of disease control', were of relevance for patients with chronic pain conditions, and how they were interconnected with patients' life satisfaction and interpretation of disease. METHODS: In a multicenter cross-sectional anonymous survey with the AKU questionnaire, we enrolled 579 patients (mean age 54 ± 14 years) with various chronic pain conditions. RESULTS: Disease as an adverse interruption of life was the prevalent interpretation of chronic pain conditions. As a consequence, patients relied on external powerful sources to control their disease (i.e., Trust in Medical Help; Search for Information and Alternative Help), but also on internal powers and virtues (i.e., Conscious Way of Living; Positive Attitudes). In contrast, Trust in Divine Help as an external transcendent source and Reappraisal: Illness as Chance as an internal (cognitive) strategy were valued moderately. Regression analyses indicated that Positive Attitudes and higher age were significant predictors of patients' life satisfaction, but none of the other adaptive coping strategies. While the adaptive coping strategies were not associated with negative interpretations of disease, the cognitive reappraisal attitude was of significant relevance for positive interpretations such as value and challenge. CONCLUSIONS: The experience of illness may enhance intensity and depth of life, and thus one may explain the association between internal adaptive coping strategies (particularly Reappraisal) and positive interpretations of disease. To restore a sense of self-control over pain (and thus congruence with the situation), and the conviction that one is not necessarily disabled by disease, is a major task in patient care. In the context of health services research, apart from effective pain management, a comprehensive approach is needed which enhances the psycho-spiritual well-being of patients.


Assuntos
Adaptação Psicológica , Dor/psicologia , Qualidade de Vida , Idoso , Doença Crônica , Estudos Transversais , Feminino , Alemanha , Humanos , Masculino , Pessoa de Meia-Idade , Satisfação Pessoal , Inquéritos e Questionários
18.
Altern Ther Health Med ; 16(3): 40-8, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20486623

RESUMO

OBJECTIVES: Mistletoe extracts have been shown to provide deoxyribonucleic acid (DNA)-stabilizing effects in human peripheral blood mononuclear cells (PBMC) in vitro. We investigated the effect of a mistletoe extract on PBMC with and without concomitant treatment with cyclophosphamide and compared mitochondrial activity and replication of normal PBMC with that of a T-cell leukemia cell line. DESIGN: The experiments were performed with PBMC of healthy blood donors and the T-cell leukemia Jurkat cell line. Cells were pre-incubated with mistletoe extract for 60 to 65 hours. 4-hydroperoxycyclophosphamide (4-hpc, precursor of 4-hydroxycyclophosphamide) was added for 2 hours, after which mitochondrial activity and replication were measured. All experiments were randomized and blinded. MAIN OUTCOME MEASURES: Cell mitochondrial activity and replication were assessed with spectrophotometric analysis of WST-1 reduction and BrdU incorporation. RESULTS: The application of 4-hpc consistently reduced mitochondrial activity and replication of PBMC and Jurkat cells. Mistletoe extract strongly enhanced PBMC mitochondrial activity and replication (with or without 4-hpc) and partially inhibited Jurkat cell replication (with 4-hpc only). Compared to mistletoe untreated cells, enhancement ofPBMC mitochondrial activity by mistletoe extract was independent of treatment with 4-hpc, but enhancement of PBMC replication by mistletoe extract was stronger when treated with 4-hpc. CONCLUSIONS: Mistletoe extract strongly stimulated healthy PBMC but not malignant Jurkat cells. In addition, mistletoe extract seemed to partially protect healthy PBMC-but not malignant Jurkat cells-from the cytostatic effect of 4-hpc. The results motivate further preclinical and clinical investigations of mistletoe extracts as an adjuvant medication in cancer therapy to alleviate side effects of conventional therapy.


Assuntos
Antineoplásicos Fitogênicos/farmacologia , Ciclofosfamida/análogos & derivados , Leucemia-Linfoma de Células T do Adulto/tratamento farmacológico , Erva-de-Passarinho , Extratos Vegetais/farmacologia , Antineoplásicos Fitogênicos/efeitos adversos , Células Cultivadas , Ciclofosfamida/efeitos adversos , Ciclofosfamida/farmacologia , Quimioterapia Combinada , Humanos , Células Jurkat/efeitos dos fármacos , Leucócitos Mononucleares/efeitos dos fármacos , Ativação Linfocitária/efeitos dos fármacos
19.
Med Teach ; 32(1): 50-5, 2010 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20095775

RESUMO

BACKGROUND: In Switzerland and in the whole western world, the growing popularity of CAM is calling for its implementation in the undergraduate medical curriculum. AIMS: To determine whether medical experts and medical students are favorable to complementary and alternative medicine (CAM) education at Swiss medical schools and to investigate their opinion about its form, content and goals. METHODS: Experts in the fields of conventional medicine (COM, n = 106), CAM experts (n = 29) and senior medical students (n = 640) were surveyed by an online questionnaire. RESULTS: 48.7% of the COM experts, 100% of the CAM experts, and 72.6% of the students are favorable to CAM education at Swiss medical schools. The most requested disciplines are acupuncture, phytotherapy, and homeopathy; the most recommended characteristics of CAM education are elective courses, during the clinical years, in the format of seminars and lectures. For the CAM experts, the priority is to improve the students' knowledge of CAM, whereas for the COM experts and the students, the priority is to analyze efficiency, security, interactions, and secondary effects of CAM. CONCLUSIONS: CAM courses should be informative, giving the students sufficient knowledge to provide a critical analysis of efficiency and security of different CAM modalities.


Assuntos
Terapias Complementares/educação , Educação Médica/métodos , Prova Pericial , Estudantes de Medicina , Feminino , Humanos , Masculino , Inquéritos e Questionários , Suíça
20.
ScientificWorldJournal ; 10: 2112-29, 2010 Nov 04.
Artigo em Inglês | MEDLINE | ID: mdl-21057725

RESUMO

This study evaluated the effects of homeopathically potentized Arsenicum album, nosode, and gibberellic acid in a bioassay with arsenic-stressed duckweed (Lemna gibba L.). The test substances were applied in nine potency levels (17x, 18x, 21x-24x, 28x, 30x, 33x) and compared with controls (unsuccussed and succussed water) regarding their influence on the plant's growth rate. Duckweed was stressed with arsenic(V) for 48 h. Afterwards, plants grew in either potentized substances or water controls for 6 days. Growth rates of frond (leaf) area and frond number were determined with a computerized image analysis system for different time intervals (days 0-2, 2-6, 0-6). Five independent experiments were evaluated for each test substance. Additionally, five water control experiments were analyzed to investigate the stability of the experimental setup (systematic negative control experiments). All experiments were randomized and blinded. The test system exhibited a low coefficient of variation (approximately equal to 1%). Unsuccussed and succussed water did not result in any significant differences in duckweed growth rate. Data from the control and treatment groups were pooled to increase statistical power. Growth rates for days 0-2 were not influenced by any homeopathic preparation. Growth rates for days 2-6 increased after application of potentized Arsenicum album regarding both frond area (p < 0.001) and frond number (p < 0.001), and by application of potentized nosode (frond area growth rate only, p < 0.01). Potencies of gibberellic acid did not influence duckweed growth rate. The systematic negative control experiments did not yield any significant effects. Thus, false-positive results can be excluded with high certainty. To conclude, the test system with L. gibba impaired by arsenic(V) was stable and reliable. It yielded evidence for specific effects of homeopathic Arsenicum album preparations and it will provide a valuable tool for future experiments that aim at revealing the mode of action of homeopathic preparations. It may also be useful to investigate the influence of external factors (e.g., heat, electromagnetic radiation) on the effects of homeopathic preparations.


Assuntos
Araceae/efeitos dos fármacos , Arsenicais/farmacologia , Giberelinas/farmacologia , Materia Medica/farmacologia , Araceae/crescimento & desenvolvimento , Arsênio/toxicidade , Bioensaio/métodos , Relação Dose-Resposta a Droga , Homeopatia/métodos , Humanos , Reguladores de Crescimento de Plantas/farmacologia , Reprodutibilidade dos Testes
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