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1.
J Ethnopharmacol ; 328: 118053, 2024 Jun 28.
Article in English | MEDLINE | ID: mdl-38499257

ABSTRACT

ETHNOPHARMACOLOGICAL RELEVANCE: Citrullus colocynthis (L.) Schrad is a member of the Cucurbitaceae plant family which has been used in traditional medicine for the treatment of lung diseases such as asthma and bronchitis. AIM OF THE STUDY: The study was conducted to investigate antiproliferative and immunomodulating effects of C. colocynthis and isolated cucurbitacins on human T lymphocytes and lung epithelial cells in order to evaluate their potential in the treatment of airway diseases. MATERIALS AND METHODS: Different concentrations of an ethanolic extract of C. colocynthis fruits and cucurbitacins B (CuB), E (CuE) and E-glucopyranoside (CuE-Glu) were analysed for their cytotoxicity and immunomodulatory potential on Peripheral Blood Mononuclear Cells (PBMCs) of healthy donors and on the epithelial lung cancer cell line A549. Viability and proliferation were tested using WST1 and CFSE assays. Flow cytometric analysis of AnnexinV/PI staining was used to investigate cell death through apoptosis/necrosis. Effects on regulatory mechanisms of T lymphocytes, such as CD69 and CD25 marker activation, cytokine production of the cytokines interleukin 2 (IL2), tumor necrosis factor α (TNFα) and interferon γ (IFNy) were also analysed via flow cytometry. Influences on the activator protein 1 (AP1), nuclear factor of activated T-cells (NFAT) or nuclear factor 'kappa-light-chain-enhancer' of activated B-cells (NFκB) pathways were analysed in the Jurkat reporter cell line. Cytokine secretion in A549 cells stimulated with virus-like particles was analysed using the bead-based Legendplex™ assay. RESULTS: Non-toxic concentrations of C. colocynthis and CuE-Glu showed dose-dependent effects on viability and proliferation in both T lymphocytes and A549 cells. The extracts inhibited lymphocyte activation and suppressed T cell effector functions, which was also shown by lower production of cytokines IL2, TNFα and IFNy. A dose dependent inhibition of the pathways NFκB, NFAT and AP1 in Jurkat cells could be observed. In A549 cells, especially CuE and CuE-Glu showed inhibitory effects on cytokine production following a simulated viral infection. Unglycosylated cucurbitacins were more effective in suppressing the immune function in lymphocytes than glycosylated cucurbitacins, however this activity is limited to cytotoxic concentrations. CONCLUSION: In our study we could confirm the immunmodulating effect of C. colocynthis and cucurbitacins B, E and E-glucopyranoside in vitro by suppression of different pathways of inflammation and T cell proliferation. Activity in a lung cell model using a virus-like stimulation shows promise for further research regarding cucurbitacins in airway diseases.


Subject(s)
Citrullus colocynthis , Citrullus , Triterpenes , Humans , Cucurbitacins/pharmacology , Interleukin-2 , Leukocytes, Mononuclear , Tumor Necrosis Factor-alpha , Plant Extracts/pharmacology , Lymphocytes , Lung
2.
Ann Med ; 55(2): 2269969, 2023.
Article in English | MEDLINE | ID: mdl-37851870

ABSTRACT

BACKGROUND/OBJECTIVE: Plant-based diets reduce the risk of cardiovascular disease but also increase the risk of certain micronutrient deficiencies, particularly, of vitamin B12 (B12). The extent to which the unsupervised use of oral nutrient supplements is sufficient to prevent these deficiencies is not well established. We analyzed nutrient intake, laboratory biomarkers, supplementation behavior, and B12 status adequacy amongst young, healthy, physically active omnivores, lacto-ovo-vegetarians and vegans from Germany. METHODS: We recruited 115 participants (n = 40 omnivores; n = 37 lacto-ovo-vegetarians, and n = 38 vegans) with comparable age, sex, marital status, physical activity and educational levels through online advertisements and local newspapers in Freiburg, Germany. RESULTS: Energy intake and macronutrient distribution were comparable across diets. Major differences included intake of fiber, cholesterol, and several vitamins. Vegans had the lowest intake of B12 from foods (0.43 (0.58) µg/d), compared to omnivores (2.14 (2.29) µg/d) and lacto-ovo-vegetarians (0.98 (1.34) µg/day). Multivariate analysis of 36 blood biomarkers revealed that three major classes of biomarkers contributed the most to the clustering of individuals by dietary group, namely, biomarkers of B12 status (B12, holoTC, Hcy), iron (iron, ferritin, transferrin) and lipid metabolism (vitamin A, HDL, LDL, total cholesterol, TAG). This suggests that nutrients that modify the metabolic pathways represented by these biomarkers have the most penetrating effect on health status across diets. Analysis of B12 status (including 4cB12) revealed adequacy in omnivores and vegans, and a poorer B12 status amongst lacto-ovo-vegetarians. Fewer lacto-ovo-vegetarians used B12 supplements compared to vegans (51% versus 90%). CONCLUSIONS: Even amongst homogeneously healthy Germans, each diet manifested with measurable differences in dietary intakes and biomarkers of health. Plant-based diets, in particular the vegan diet, exhibited the most favorable patterns of lipid metabolism and glycemic control, but the lowest food intake of B12. Supplementation of healthy vegans with B12 (median 250 µg B12/day, over 2 years) secured an adequate B12 status that was comparable to that of healthy omnivores.Clinical Trial Registry: German Clinical Trial register number: DRKS00027425.


Plant-based diets, in particular the vegan diet, exhibited the most favorable patterns of lipid metabolism and glycemic control, but the lowest food intake of B12.Analysis of B12 status (including 4cB12) revealed adequacy in omnivores and vegans, and a poorer B12 status amongst lacto-ovo-vegetarians.Supplementation with B12 (median 250 µg B12/day, over 1 year) in healthy physically-active vegans secured an adequate B12 status that was comparable to that of healthy omnivores.


Subject(s)
Diet, Vegan , Vegans , Humans , Nutritional Status , Vitamin B 12 , Cross-Sectional Studies , Diet, Vegetarian , Vegetarians , Diet , Dietary Supplements , Vitamins , Cholesterol , Iron , Biomarkers
3.
Biomolecules ; 13(8)2023 07 26.
Article in English | MEDLINE | ID: mdl-37627233

ABSTRACT

The vast pool of structurally and functionally distinct secondary metabolites (i.e., natural products (NPs)) is constantly being expanded, a process also driven by the rapid progress in the development of analytical techniques. Such NPs often show potent biological activities and are therefore prime candidates for drug development and medical applications. The ethyl acetate extract of the tuber of Citrullus naudinianus (C. naudinianus), an African melon with edible fruits and seeds, shows in vitro immunomodulatory activity presumably elicited by cucurbitacins that are known major constituents of this plant. Further potentially immunomodulatory cucurbitacins or cucurbitacin derivatives were assumed to be in the tuber. Given the typically high content of cucurbitacins with similar physicochemical features but often distinct bioactivities, an efficient and reliable separation process is a prerequisite for their detailed characterization and assessment in terms of bioactivity. We therefore developed a detection method to screen and differentiate cucurbitacins via high-performance liquid chromatography/quadrupole-time-of-flight tandem mass spectrometry (HPLC-QTOF-MS/MS). In order to confirm the identification, the fragmentation patterns of two cucurbitacins and one 23,24-dihydrocucurbitacin were also investigated. Six characteristic fragments were identified and three of them were employed for the identification of cucurbitacins and 23,24-dihydrocucurbitacins in the extract. As a result, in addition to eight previously reported cucurbitacins from this plant four distinct 23,24-dihydrocucurbitacins (B, D, E, and I) were putatively identified and newly found in the ethyl acetate extract of the tuber of C. naudinianus. The established methodology enables rapid and efficient LC-MS-based analysis and identification of cucurbitacins and 23,24-dihydrocucurbitacins in plant extracts.


Subject(s)
Biological Products , Citrullus , Cucurbitacins , Tandem Mass Spectrometry
4.
Jpn Dent Sci Rev ; 59: 114-128, 2023 Dec.
Article in English | MEDLINE | ID: mdl-36950225

ABSTRACT

Acute dental pain is a common issue leading to dental consultation. Besides causal therapy, patients are treated with acupuncture, but efficacy in acute dental pain is still not clarified. We aimed to evaluate results of recent research to estimate the efficacy of acupuncture compared to pain-relieving approaches in treatment of acute dental pain. A systematic review of controlled trials being published between database inception and 2020 were conducted to evaluate the efficacy of acupuncture (alone or as complementary therapy) compared to local anesthesia or conventional analgesic medications in acute dental pain (intraoperatively and postoperatively) and to clarify whether acupuncture reduces the use of postoperative analgesic medications. Of 1672 publications, 23 publications met the inclusion criteria. From these, 11 randomized controlled trials (n = 668) reported on the efficacy of acupuncture on postoperative acute dental pain. Patients, who received acupuncture, showed lower pain scores postoperatively compared to sham acupuncture (Relative Risk -0.77, 95% Confidence interval -1.52 to -0.03). Overall, the results suggest a potential role of acupuncture in improving acute dental pain intraoperatively and postoperatively as well as improving the efficacy of local anesthesia, but the results are limited due to methodological shortcomings emphasizing the necessity for future high-quality research.

5.
Complement Med Res ; 30(5): 386-392, 2023.
Article in English | MEDLINE | ID: mdl-36927644

ABSTRACT

BACKGROUND: Viscum album L. (VA) preparations possess immunomodulatory properties and are used in complementary medicine to support cancer therapy. It is unclear if there is an impact of VA on the expression of immune checkpoint proteins on the surface of cancer cells. This study was designed to investigate the role of commercially available VA preparations on checkpoint programmed death ligand 1, 2 (PD-L1, PD-L2) and on major histocompatibility complex class I (MHC-I). METHODS: Four human cancer cell lines (prostate, colon, lung, and breast) were assayed for their PD-L1, PD-L2, and MHC-I level after stimulation with interferon-gamma (IFN-γ). The toxicity of mistletoe preparations for the cells was analysed. Afterwards, the effect of mistletoe preparations on the PD ligands and MHC-I was investigated. RESULTS: Surface protein analysis demonstrated that all tested tumour cell lines increased the PD-L1, PD-L2, and MHC-I-expression, but to different extents, after IFN-γ stimulation. Treatment with VA extracts did not influence the viability of the cells. The expression of PD ligands and MHC-I was not affected by incubation with the VA preparations. CONCLUSION: Our investigation concludes that VA treatment does not interfere with the expression of PD ligands or MHC-I among selected cancer cells.HintergrundViscum album L. (VA)-Präparate besitzen immunmodulatorische Eigenschaften und werden in der Komplementärmedizin zur Unterstützung in der Krebstherapie eingesetzt. Es ist jedoch unklar, ob VA einen Einfluss auf die Expression von Immuncheckpoint-Proteinen auf Krebszellen hat. In der vorliegenden Arbeit wurde ein Einfluss von handelsüblichen VA-Präparaten auf die Checkpoint-Proteine programmed death ligand 1, 2 (PD-L1, PD-L2) und major histocompatibility complex class I (MHC-I) untersucht.MethodenVier humane Krebszelllinien der Prostata, des Dickdarms, der Lunge und Brust wurden nach Stimulation mit Interferon-gamma (IFN-γ) auf ihre PD-L1, PD-L2 und MHC-I Konzentration untersucht. Zunächst wurde die Toxizität von Mistelpräparaten auf die Tumorzellen analysiert. Anschließend erfolgte eine Charakterisierung der Wirkung von Mistelpräparaten auf die PD-Liganden und MHC-I.ErgebnisseDie Oberflächenproteinanalysen zeigten, dass alle getesteten Tumorzelllinien nach einer IFN-γ-Stimulation die PD-L1, PD-L2 und MHC-I Expression in unterschiedlichem Ausmaß erhöhten. Die Behandlung mit verschiedenen VA-Extrakten hatte keinen Einfluss auf die Viabilität der Zellen, sowie auf die Expression der PD-Liganden und MHC-I.SchlussfolgerungUnsere Untersuchung kommt zu dem Schluss, dass eine VA-Behandlung die Expression von PD-Liganden oder MHC-I in den untersuchten Krebszellen nicht beeinflusst.


Subject(s)
Breast Neoplasms , Viscum album , Male , Humans , B7-H1 Antigen , Breast Neoplasms/drug therapy , Interferon-gamma , Prostate , Lung , Colon
7.
Article in English | MEDLINE | ID: mdl-36430041

ABSTRACT

Research suggests that stays in a forest promote relaxation and reduce stress compared to spending time in a city. The aim of this study was to compare stays in a forest with another natural environment, a cultivated field. Healthy, highly sensitive persons (HSP, SV12 score > 18) aged between 18 and 70 years spent one hour in the forest and in the field at intervals of one week. The primary outcome was measured using the Change in Subjective Self-Perception (CSP-14) questionnaire. Secondary outcomes were measured using the Profile Of Mood States (POMS) questionnaire and by analyzing salivary cortisol. We randomized 43 participants. Thirty-nine were allocated and included in the intention-to-treat analysis (90% female, mean age 45 years). CSP-14 in part showed significant differences-total score (p = 0.054, Cohen's d = 0.319), item "integration" (p = 0.028, Cohen's d = 0.365)-favoring the effects of the forest. These effects were more pronounced in summer (August). In October, during rainfall, we detected no relevant differences. POMS only showed a significant difference in the subcategory "depression/anxiety" in favor of the field. The amount of cortisol in saliva was not different between the groups. A short-term stay in a forest in summer caused a greater improvement in mood and well-being in HSP than in a field. This effect was not detectable during bad weather in the fall.


Subject(s)
Forests , Hydrocortisone , Humans , Female , Infant , Adolescent , Young Adult , Adult , Middle Aged , Aged , Male , Cross-Over Studies , Relaxation/psychology , Perception
8.
BMC Complement Med Ther ; 22(1): 263, 2022 Oct 11.
Article in English | MEDLINE | ID: mdl-36221070

ABSTRACT

BACKGROUND: Complementary medicine (CM) is frequently used by patients, but little is known about the usage of CM in surgical patients. The study aimed to elucidate the relevance of CM in surgery. METHODS: This cross-sectional, multi-center survey utilized a paper-based questionnaire consisting of 21 questions to capture CM usage and interest as well as CM communication in visceral and thoracic surgical patients being hospitalized at the corresponding departments of surgery at the University Medical Centers in Freiburg, Heidelberg und Ulm, Germany. RESULTS: Overall, 151 patients consented to the survey. On average, current CM usage was stated by 44% of patients. Most frequently used CM approaches were physical exercise (63%), nutritional supplements (59%) and herbal medicine (56%). Strong interest in CM counselling was stated by 51% of patients. Almost 80% of patients wanted to be treated in a holistic manner and desired for reliable information about CM as well as CM informed physicians. Only 12% of patients communicated CM usage and interest with their attending physician. Review of literature revealed similar results showing an overall CM usage of 43%, preferring nutritional supplements and herbal medicine. CONCLUSION: The results of our cross-sectional study indicate a high percentage of CM users and a strong interest in CM among surgical patients. Indeed, the current communication about CM between patients and surgeons is poor. With respect to safety and quality reasons, but also to pay attention to patients' demands, physicians should be aware of patients' CM usage in surgery. TRIAL REGISTRATION: German Clinical Trial register (DRKS00015445).


Subject(s)
Complementary Therapies , Communication , Cross-Sectional Studies , Germany , Humans , Surveys and Questionnaires
9.
GMS J Med Educ ; 39(2): Doc16, 2022.
Article in English | MEDLINE | ID: mdl-35692361

ABSTRACT

Background: A large part of the population in Germany makes use of naturopathic, complementary and integrative medical treatments. There are now numerous scientific studies that provide evidence of efficacy for certain indications. At German medical faculties, selected procedures and their application are taught within the cross-sectoral unit called QB 12 and some elective courses, with a focus on specific aspects are offered. So far, however, there has been no structured curriculum that longitudinally anchors teaching across medical studies and enables all students to consider naturopathic and complementary medical options for patient care later on and to integrate them effectively into the diagnostic and treatment process. Objective: The aim of this position paper is to show the relevance of this topic for medical education, to clarify terminology and to present core competencies and possible implementation options for training. Method: The Integrative Medicine and Perspective Pluralism Committee of the German Association for Medical Education developed this position paper in a multi-stage consensual process, in cooperation with the Forum of University Work Groups on Naturopathic Treatment and Complementary Medicine. Results: First, different umbrella terms were discussed and an existing definition of integrative medicine and health was chosen for subsequent use. Building on this step, the status of education and its scientific foundation in Germany was considered in an international context. In the next step, a competency profile for medical training, consisting of seven areas of competency, was developed and described in detail with regard to naturopathic, complementary and integrative medicine. Implementation options were identified using possible starting points in the curriculum and using established examples of best practice. Conclusion: Despite different priorities at each faculty, it was possible to find an agreement on the development of competencies and anchoring them in medical education on the basis of a common definition of terms. Currently, the implementation in the mandatory and elective areas is very heterogeneous. As part of the current revision of the Medical Licensure Act, there are many possible starting points for the integration of naturopathic and complementary medical teaching content, especially in interprofessional and general practice courses. The implementation and accompanying research of targeted teaching settings should lay the foundations for a long-term and binding integration into medical education. Overall, it is clear that medical education in the field of naturopathy and complementary and integrative medicine has the potential to develop comprehensive core medical competencies.


Subject(s)
Education, Medical , Integrative Medicine , Naturopathy , Cultural Diversity , Curriculum , Faculty, Medical , Germany , Humans
10.
Biomed Pharmacother ; 152: 113120, 2022 Aug.
Article in English | MEDLINE | ID: mdl-35653889

ABSTRACT

Circular peptides are attractive lead compounds for drug development; this study investigates the immunomodulatory effects of defined root powder extracts and isolated peptides (called cyclotides) from Carapichea ipecacuanha (Brot.) L. Andersson ('ipecac'). Changes in the viability, proliferation and function of activated human primary T cells were analysed using flow cytometry-based assays. Three distinct peptide-enriched extracts of pulverised ipecac root material were prepared via C18 solid-phase extraction and analysed by reversed-phase HPLC and mass spectrometry. These extracts induced caspase 3/7 dependent apoptosis, thus leading to a suppressed proliferation of activated T cells and a reduction of the number of cells in the G2 phase. Furthermore, the stimulated T cells had a lower activation potential and a reduced degranulation capacity after treatment with ipecac extracts. Six different cyclotides were isolated from C. ipecacuanha and an T cell proliferation inhibiting effect was determined. Furthermore, the degranulation capacity of the T cells was diminished specifically by some cyclotides. In contrast to kalata B1 and its analog T20K, secretion of IL-2 and IFN- γ was not affected by any of the caripe cyclotides. The findings add to our increased understanding of the immunomodulating effects of cyclotides, and may provide a basis for the use of ipecac extracts for immunomodulation in conditions associated with an exessive immune responses.


Subject(s)
Cyclotides , Cell Proliferation , Cyclotides/pharmacology , Humans , Ipecac/pharmacology , Lymphocyte Activation , Lymphocytes , Peptides, Cyclic
11.
Sleep ; 45(10)2022 10 10.
Article in English | MEDLINE | ID: mdl-35640263

ABSTRACT

STUDY OBJECTIVES: Postoperative sleep disturbances appear to be a common complication after surgery being treated with sleep-promoting medication such as valerian, but robust data and evidence of medicinal approaches are lacking. METHODS: We performed a retrospective cohort analysis of all 21 168 urological, gynecological, and general surgical patients of the University Medical Center Freiburg, Germany, who underwent surgery between 2015 and 2020. Target parameters were the usage of sleep-promoting medication to estimate the occurrence of postoperative sleep disturbances as well as the kind of sleep medication with a special focus on herbal medication such as valerian. RESULTS: Drug-treated sleep disturbances occurred in 15% (n = 3083) of the patients. Valerian was the second most applied drug (n = 814, 26.4%) after classic benzodiazepines (n = 1 138, 36.9%). The majority of patients got valerian as monotherapy. Age, length of stay, and comorbidities were associated with demand for sleep medication in general (p < .001). Valerian monotherapy was more common in women (OR 1.53, 95% CI: 1.33-1.77, p < .001), elderly patients (OR 1.50, 95% CI: 1.29-1.75, p < .001), and patients with prolonged hospital stay (OR 2.23, 95% CI: 1.91-2.61, p < .001). CONCLUSIONS: Valerian plays an important role in the treatment of postoperative sleep disturbances clinically, and it appears to be a promising therapeutic approach especially in women, older and sicker patients, and those with prolonged hospital stay. Further research has to clarify the efficacy of valerian postoperatively. CLINICAL TRIAL REGISTRATION: DRKS00027903, https://www.drks.de/drks_web/navigate.do?navigationId=trial.HTML&TRIAL_ID=DRKS00027903.


Subject(s)
Sleep Initiation and Maintenance Disorders , Sleep Wake Disorders , Valerian , Aged , Benzodiazepines , Female , Humans , Hypnotics and Sedatives/pharmacology , Phytotherapy , Plant Extracts/pharmacology , Plant Extracts/therapeutic use , Retrospective Studies , Sleep , Sleep Initiation and Maintenance Disorders/drug therapy , Sleep Wake Disorders/drug therapy , Sleep Wake Disorders/epidemiology , Sleep Wake Disorders/etiology
12.
Int Immunopharmacol ; 103: 108448, 2022 Feb.
Article in English | MEDLINE | ID: mdl-34998274

ABSTRACT

BACKGROUND: Cannabis sativa L. extracts (CSE) are used for treating inflammatory conditions, but little is known about their immunomodulatory effects. We investigated a novel CSE with high (14%) CBD and low (0.2%) THC concentration in comparison with pure CBD on primary human lymphocytes. METHODS: Proliferation, cell cycle distribution, apoptosis/necrosis and viability were analysed with standard methods. Genotoxicity was evaluated with the comet-assay. The effect on T lymphocyte activation was evaluated via CD25/CD69 marker expression, degranulation assays and the production of cytokines. The influence on the transcription factors was analysed using Jurkat reporter cell lines. Specific CB2 receptor antagonist SR144528 and TRPV1 receptor antagonist A78416B were used to study the involvement of CB2 or TRPV1 receptors. RESULTS: CSE inhibited the proliferation of activated T lymphocytes in a dose-dependent manner without inducing apoptosis, necrosis, or affecting cell viability and DNA integrity. The inhibitory effect was mediated via the suppression of T lymphocytes activation, particularly by the suppression of CD25 surface marker expression. Furthermore, CSE interferes with the functionality of the T lymphocytes, as indicated by inhibition of degranulation, IL-2, and IFN-γ production. AP-1-and-NFAT-reporter activation was reduced implicating an AP-1-and-NFAT-mediated mode of action. The effects were in part reversed by SR144528 and A78416B, showing that the effects were mainly mediated by CB2 and TRPV1 receptors. CONCLUSION: CSE and CBD have immunomodulatory effects and interfere with the activation and functionality of T lymphocytes. A comparison between CSE and CBD suggests that the immunosuppressive effect of CSE is mostly due to the effect of CBD.


Subject(s)
Immunosuppressive Agents/metabolism , Plant Extracts/metabolism , T-Lymphocytes/immunology , Apoptosis , Cannabis/immunology , Cell Degranulation , Cell Proliferation , Cells, Cultured , Gene Expression Regulation , Humans , Interleukin-2 Receptor alpha Subunit/genetics , Interleukin-2 Receptor alpha Subunit/metabolism , NFATC Transcription Factors/genetics , NFATC Transcription Factors/metabolism , Plant Extracts/immunology , Psychotropic Drugs , Receptor, Cannabinoid, CB2/metabolism , Transcription Factor AP-1/genetics , Transcription Factor AP-1/metabolism
13.
Planta Med ; 88(14): 1360-1368, 2022 Nov.
Article in English | MEDLINE | ID: mdl-34706374

ABSTRACT

Equisetum arvense tea (TEA) contains high concentrations of silicon and has been used in folk medicine for the treatment of inflammatory ailments. We examined the resorption of silicon after TEA consumption. Safety and immunological effects were secondary outcomes. A monocentric, randomized, three-armed pilot study was conducted with 12 voluntary, healthy, male subjects. The study is registered in the German register for clinical trials (DRKS-ID: DRKS00016628). After a low silicon diet for 36 hours, 1000 mL TEA1 with approximately 200 000 µg silicon/L, TEA2 with approximately 750 000 µg silicon/L, or Si-low-Water (approximately 10 - 10 000 µg silicon/L as a control) were ingested on three consecutive days. Blood and urine samples were collected at baseline, day 1 examining silicon kinetics, day 3 examining silicon accumulation, and day 8 (safety, immunological parameters). Si-low-Water intake did not change silicon serum (Cmax 294 µg/L) or urine (19 000 µg/24 h) concentrations compared to baseline. Cmax was 2855 µg/L for TEA1 and 2498 µg/L for TEA2; tmax was 60 and 120 min, respectively. Silicon accumulation did not occur. Urine silica within 24 h (E24 h) was higher after TEA2 compared to TEA1 ingestion (142 000 vs. 109 000 µg/24 h). Serum silicon levels at t = 120 min differed significantly after intake of TEA2 or intake of Si-low-Water (p = 0.029). The immunological parameters did not show any significant changes indicating immunosuppressive effects in volunteers. TEA1 was well tolerated, while TEA2 caused diarrhoea in 4 subjects. Our investigations show that intake of TEA1 leads to significant rise in serum silicon concentration.


Subject(s)
Equisetum , Silicon , Pilot Projects , Water , Tea
14.
BMC Complement Med Ther ; 21(1): 285, 2021 Nov 23.
Article in English | MEDLINE | ID: mdl-34814885

ABSTRACT

BACKGROUND: The results of recent surveys indicate that more than 50% of the German population has experience with complementary and alternative medicine (CAM) or uses CAM regularly. This study investigated the CAM usage and CAM-related needs of hospitalized patients at university medical centres in the state of Baden-Württemberg, Germany. METHODS: A multi-centre, paper-based, pseudonymous survey was carried out by the members of the Academic Centre for Complementary and Integrative Medicine. Patients of all ages, regardless of sex, diagnosis and treatment, who were hospitalized in the Department of Cardiology, Gastroenterology, Oncology, Gynaecology or Surgery at the university medical centres in Freiburg, Heidelberg, Tübingen and Ulm were eligible for inclusion. RESULTS: Of the 1275 eligible patients, 67% (n = 854) consented to participate in the survey. Forty-eight percent of the study participants stated that they were currently using CAM. The most frequently used therapies were exercise (63%), herbal medicine (54%) and dietary supplements (53%). Only 16% of the patients discussed CAM usage with their attending physician. Half of the patients (48%) were interested in CAM consultations. More than 80% of the patients desired reliable CAM information and stated that physicians should be better informed about CAM. CONCLUSIONS: The frequency of CAM usage and the need for CAM counselling among hospitalized patients at university medical centres in Baden-Württemberg are high. To better meet patients' needs, CAM research and physician education should be intensified. TRIAL REGISTRATION: German Clinical Trial register ( DRKS00015445 ).


Subject(s)
Academic Medical Centers , Complementary Therapies/statistics & numerical data , Hospitalization , Patient Acceptance of Health Care/statistics & numerical data , Adolescent , Adult , Aged , Aged, 80 and over , Cross-Sectional Studies , Female , Germany , Humans , Male , Middle Aged , Surveys and Questionnaires , Young Adult
15.
BMC Musculoskelet Disord ; 22(1): 410, 2021 May 04.
Article in English | MEDLINE | ID: mdl-33947367

ABSTRACT

BACKGROUND: Chronic low back pain is the most frequent medical problem and the condition with the most years lived with disability in Western countries. The objective of this study was to assess a new treatment, Medi-Taping, which aims at reducing complaints by treating pelvic obliquity with a combination of manual treatment of trigger points and kinesio taping in a pragmatic RCT with pilot character. METHODS: One hundred ten patients were randomized at two study centers either to Medi-Taping or to a standard treatment consisting of patient education and physiotherapy as control. Treatment duration was 3 weeks. Measures were taken at baseline, end of treatment and at follow-up after 2 months. Main outcome criteria were low back pain measured with VAS, the Chronic Pain Grade Scale (CPGS) and the Oswestry Low Back Pain Disability Questionnaire (ODQ). RESULTS: Patients of both groups benefited from the treatment by medium to large effect sizes. All effects were pointing towards the intended direction. While Medi-Taping showed slightly better improvement rates, there were no significant differences for the primary endpoints between groups at the end of treatment (VAS: mean difference in change 0.38, 95-CI [- 0.45; 1.21] p = 0.10; ODQ 2.35 [- 0.77; 5.48] p = 0.14; CPGS - 0.19 [- 0.46; 0.08] p = 0.64) and at follow-up. Health-related quality of life was significantly higher (p = .004) in patients receiving Medi-Taping compared to controls. CONCLUSIONS: Medi-Taping, a purported way of correcting pelvic obliquity and chronic tension resulting from it, is a treatment modality similar in effectiveness to complex physiotherapy and patient education. TRIAL REGISTRATION: This trial was registered retrospectively on July 24th, 2019 as Number DRKS00017051 in the German Register of Clinical Trials (Deutsches Register Klinischer Studien). URL of trial registry record: https://www.drks.de/drks_web/navigate.do?navigationId=trial.HTML&TRIAL_ID=DRKS00017051 .


Subject(s)
Athletic Tape , Chronic Pain , Low Back Pain , Musculoskeletal Manipulations , Chronic Pain/diagnosis , Chronic Pain/therapy , Humans , Low Back Pain/diagnosis , Low Back Pain/therapy , Quality of Life , Retrospective Studies
17.
BMJ Open ; 10(9): e037192, 2020 09 06.
Article in English | MEDLINE | ID: mdl-32895280

ABSTRACT

OBJECTIVES: Complementary and alternative medicine (CAM) is frequently used in Western countries within general medicine and internal medicine. Information on the use in orthopaedic and trauma surgery is widely lacking. The aim of this study was to investigate usage and needs regarding CAM for these patients. DESIGN: Prospective paper-based, pseudoanonymous, cross-sectional survey. SETTING: From August to December 2018, a questionnaire composed of 17 questions was distributed to all eligible patients. PARTICIPANTS: In-house patients in orthopaedic and trauma surgery at a high-volume medical centre in Germany. PRIMARY AND SECONDARY OUTCOME MEASURES: Previous or current usage of CAM, interest and requests towards CAM as well as communication about CAM. RESULTS: Overall, 457 orthopaedic and trauma surgical patients took part in the survey. They were on average 52 years old and 54% were male. Most of the patients were admitted due to bone fractures and most underwent operative therapy. Previous or current CAM usage was stated by 76% and 30% of patients, respectively. Most of the patients stated to be interested in usage of CAM and demanded for more clinical usage of CAM and reliable information about CAM. More than 90% of patients did not discuss CAM interest or usage with their treating physicians. Patients stated that physicians should have knowledge about CAM. They wish to be treated in a holistic manner and want to strengthen self-efficacy. CONCLUSIONS: Usage of CAM of patients in orthopaedic and trauma surgery appears to be high. Only a few patients discuss their interest and usage of CAM with their treating physician. Therefore, surgeons should ask their patients about CAM and should consider evidence-based CAM approaches for complementary treatment. TRIAL REGISTRATION NUMBER: DRKS0001544.


Subject(s)
Complementary Therapies , Orthopedics , Cross-Sectional Studies , Female , Germany , Humans , Male , Middle Aged , Prospective Studies , Surveys and Questionnaires
18.
Fitoterapia ; 146: 104694, 2020 Oct.
Article in English | MEDLINE | ID: mdl-32712132

ABSTRACT

Resins from various Boswellia species have a long track record in different cultures as a treatment for inflammatory diseases. This study was designed to provide evidence for the anti-inflammatory capacity and medicinal use of Boswellia carteri (Burseraceae). A dichloromethane (DCM) extract of B. carteri gum resin and isolated compounds thereof were immunologically characterized. Flow cytometric-based analysis was performed to investigate the impact of B. carteri extract on proliferation, viability, and function of anti-CD3 and anti-CD28 activated human primary T cells. The secretion level of IL-2 and IFN-γ was determined by a bead array-based flow cytometric technique. HPLC-based activity profiling of the B. carteri extract identified active compounds. The impact of B. carteri extract and isolated compounds on the IL-2 transcription factor activity was addressed using specially designed Jurkat reporter cells. The extract of B. carteri suppressed the proliferation of human primary T lymphocytes in vitro in a concentration-dependent manner, without inducing cytotoxicity. Thereby, the B. carteri extract further reduced the degranulation capacity and cytokine secretion of stimulated human T cells. Transcription factor analysis showed that the immunosuppressive effects of the extract are based on specific NFAT-conditioned suppression within T cell signaling. Through HPLC-based activity profiling of the extract, 3-O-acetyl-alpha-boswellic acid was identified as the compound responsible for the NFAT-based mechanism. The recent study presents a scientific base for the immunosuppressive effects of B. carteri gum resin extract including a mode-of-action via the NFAT-conditioned suppression of T lymphocyte proliferation. The immunosuppressive effects of 3-O-acetyl-alpha-boswellic acid are depicted for the first time.


Subject(s)
Anti-Inflammatory Agents/pharmacology , Boswellia/chemistry , Immunosuppressive Agents/pharmacology , Plant Extracts/pharmacology , T-Lymphocytes/drug effects , Triterpenes/pharmacology , Anti-Inflammatory Agents/isolation & purification , Apoptosis , Cell Degranulation/drug effects , Cell Proliferation/drug effects , Cytokines/analysis , Humans , Immunosuppressive Agents/isolation & purification , Jurkat Cells , Molecular Structure , Phytochemicals/isolation & purification , Phytochemicals/pharmacology , Resins, Plant/pharmacology , Triterpenes/isolation & purification
19.
Front Pharmacol ; 11: 402, 2020.
Article in English | MEDLINE | ID: mdl-32322200

ABSTRACT

The need for novel drugs for the treatment of autoimmune diseases is high, since available pharmaceuticals often have substantial side effects and limited efficacy. Natural products are a good starting point in the development of immunosuppressive leads. Since enhanced T cell proliferation is a common feature of autoimmune diseases, we investigated the T cell proliferation inhibitory potential of an extract library of plants used in traditional Chinese medicine. Using a newly established cell-based screening platform, an ethyl acetate extract of Artemisia argyi H.Lév. & Vaniot (Asteraceae, A. argyi) was found to suppress the proliferation of human primary T lymphocytes in vitro in an IL-2-dependent manner. Flow cytometry- and ELISA-based techniques further demonstrated that the A. argyi extract reduced the activation and function of T cells. Transcription factor analysis and flow cytometric calcium influx investigations indicated that the immunomodulatory effect was based on specific modification of T cell signaling in a non-cytotoxic manner which is mediated via the NFAT pathway and a non-sequestrant inhibition of the calcium influx. A series of guaianolide and seco-guaianolide sesquiterpene lactones, as well as a flavonoid, were identified in a previous study as the bioactive compounds in the A. argyi extract. The effects of these bioactive compounds were compared to those of the crude extract. The tested sesquiterpene lactones act via the transcription factor NFAT and NF-κB, thereby exhibiting their immunosuppressive potential, but have an overall effect on T cell biology on a more-downstream level than the crude A. argyi extract.

20.
Article in English | MEDLINE | ID: mdl-32148549

ABSTRACT

BACKGROUND: Up to 88% of oncological patients apply complementary therapies and up to 77% apply complementary mistletoe therapy in the context of integrative oncological approaches. An evidence-based consultation of oncological health professionals regarding complementary therapies used in Germany is missing. Therefore, a new S3-Guideline for Complementary Medicine in the Treatment of Oncological Patients is under development and is anticipated to be finalized in November 2020. It will be based on evidence-based publications and systematic reviews on complementary therapies in oncology. A recently published two-part systematic review on mistletoe treatment in oncology has been reevaluated. METHODS: The latest published systematic two-part review on mistletoe has been systematically proofread and checked in compliance with the Cochrane Handbook for Systematic Reviews of Intervention and the AMSTAR 2 (A MeaSurement Tool to Assess Systematic Reviews) tool. RESULTS: The here discussed two-part review is incomplete, lacks sound accuracy including insufficient assessment of the risk of bias, and contains imprecise statements. In addition, it does not sufficiently comply with the Cochrane Handbook for Systematic Reviews of Intervention and the AMSTAR 2 tool. CONCLUSION: In view of the approaching release of a new guideline in the field of complementary therapies in oncology, the present statement draws attention to a lack of profound methodology of conductance of a recently released systematic review on mistletoe. In consequence, a comprehensive overview of published mistletoe studies, i.e., a meta-analysis with a sound methodology of conductance, is necessary.

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