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Lu L, Cao H, Li H, Zhang H, Li S, Wang J. Diversity and profiles of volatile compounds in twenty-five peppermint genotypes grown in China. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2022. [DOI: 10.1080/10942912.2022.2082465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Lin Lu
- Flower Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Hua Cao
- Flower Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Han Li
- Flower Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Hao Zhang
- Flower Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Shenchong Li
- Flower Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, China
| | - Jihua Wang
- Flower Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, China
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Senica M, Mikulic-Petkovsek M. Changes in beneficial bioactive compounds in eight traditional herbal liqueurs during a one-month maceration process. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:343-353. [PMID: 31584698 DOI: 10.1002/jsfa.10044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 08/31/2019] [Accepted: 10/12/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Herbs are rich in various beneficial bioactive compounds and they can be used for many different purposes. One of the most common is maceration of herbs in alcohol. Different substances respond differently to extraction in prepared solutions. It is very important to enhance the highest proportion of beneficial ingredients during the maceration process in a herbal liqueur. A comparative analysis of numerous different phenolic compounds from eight of the most frequently used herbs for making aperitifs in Europe was performed. RESULTS In the comparison among all studied herbs, the highest phenolic content was found with Artemisia absinthium (wormwood) (14.61 mg g-1 ) and Mentha piperita (peppermint) (13.89 mg g-1 ), while the lowest content was found with Centaurium erythraea (common centaury) (3.96 mg g-1 ). Salvianolic acid isomers and caffeic acid derivatives were the greatest contributors to the total phenolic content in lemon balm, wormwood, peppermint, fennel and sage. These compounds contain more hydroxyl groups and they were better extracted at the beginning of the maceration process. Caraway and common centaury contain more flavonols (quercetin and kaempferol derivatives), with higher chemical stability and fewer hydroxyl groups in their structure. CONCLUSION The compositions of eight herbal liqueurs were highly related to the presence of different herbal ingredients and their solubility in the extract over time. Most flavonol derivatives were extracted over a longer time and the two liqueurs (common centaury and caraway) therefore had the highest phenolic contents after 3 weeks of maceration. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Mateja Senica
- Chair for Fruit Growing, Viticulture and Vegetable Growing, Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Maja Mikulic-Petkovsek
- Chair for Fruit Growing, Viticulture and Vegetable Growing, Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
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Madisch A, Miehlke S, Labenz J, Stracke B, Köhler S. Effectiveness of Menthacarin on symptoms of irritable bowel syndrome. Wien Med Wochenschr 2018; 169:149-155. [PMID: 29728848 PMCID: PMC6435633 DOI: 10.1007/s10354-018-0635-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 03/21/2018] [Indexed: 02/07/2023]
Abstract
Irritable bowel syndrome (IBS) and functional dyspepsia (FD) are common functional gastrointestinal disorders with overlapping symptoms. Effectiveness and safety of Menthacarin (Menthacarin® is the active ingredient of the product Carmenthin® [Dr. Willmar Schwabe GmbH & Co. KG, Karlsruhe, Germany]) in FD treatment were already demonstrated. We assessed the effectiveness of Menthacarin in reducing concomitant IBS-associated symptoms in FD patients. A systematic search to identify eligible double-blind, randomized controlled trials (RCTs) investigating Menthacarin in FD patients and focusing on IBS-associated symptoms was performed. Three out of five identified RCTs included a total of 111 eligible subjects, which allowed for summary statistics and inclusion into subgroup analysis for FD patients with IBS-associated symptoms. With pain intensity values decreasing by 50–75% on average during 28 days of treatment in patients with accompanying IBS, the subgroup analysis indicates beneficial treatment effects of Menthacarin that are similar to those found for FD patients in the primary analyses. The reduction of IBS-associated symptoms in FD patients suggests Menthacarin as a treatment option for IBS patients.
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Affiliation(s)
- Ahmed Madisch
- Medical Department I, Academic Teaching Hospital Siloah, Stadionbrücke 4, 30459, Hannover, Germany.
| | - Stephan Miehlke
- Center for Digestive Diseases, Internal Medicine Center Eppendorf, Hamburg, Germany
| | - Joachim Labenz
- Medical Department, Diakonie Klinikum Jung-Stilling, Siegen, Germany
| | - Berenike Stracke
- Clinical Research Department, Dr. Willmar Schwabe GmbH & Co. KG, Karlsruhe, Germany
| | - Stephan Köhler
- Clinical Research Department, Dr. Willmar Schwabe GmbH & Co. KG, Karlsruhe, Germany
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4
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Rich G, Shah A, Koloski N, Funk P, Stracke B, Köhler S, Holtmann G. A randomized placebo-controlled trial on the effects of Menthacarin, a proprietary peppermint- and caraway-oil-preparation, on symptoms and quality of life in patients with functional dyspepsia. Neurogastroenterol Motil 2017; 29. [PMID: 28695660 DOI: 10.1111/nmo.13132] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 05/18/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND Functional dyspepsia (FD) is a very common condition affecting more than 10% of the population. While there is no cure, a few drugs have been found to be effective for the relief of symptoms, although most are only effective in a subgroup of patients. We assess and compare the efficacy of a fixed peppermint/caraway-oil-combination (Menthacarin) on symptoms and quality of life (QoL) in patients with FD symptoms consistent with epigastric pain syndrome (EPS) and postprandial distress syndrome (PDS). METHODS In a prospective, double-blind, multicenter trial, 114 outpatients with chronic or recurrent FD were randomized and treated for 4 weeks with the proprietary peppermint- and caraway-oil-preparation Menthacarin or placebo (2×1 capsule/day). Improvement of abdominal pain and discomfort were used as co-primary efficacy measures (scores measured with the validated Nepean Dyspepsia Index). KEY RESULTS After 2 and 4 weeks, active treatment was superior to placebo in alleviating symptoms consistent with PDS and EPS (P all <.001). After 4 weeks of treatment, pain and discomfort scores improved by 7.6±4.8 and 3.6±2.5 points (full analysis set; mean±SD) for Menthacarin and by 3.4±4.3 and 1.3±2.1 points for placebo, respectively. All secondary efficacy measures showed advantages for Menthacarin. CONCLUSIONS & INFERENCES Menthacarin is an effective therapy for the relief of pain and discomfort and improvement of disease-specific QoL in patients with FD and significantly improves symptoms consistent with EPS and PDS.
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Affiliation(s)
- G Rich
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia.,Faculty of Medicine & Faculty of Health & Behavioural Sciences, University of Queensland, Brisbane, QLD, Australia
| | - A Shah
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia.,Faculty of Medicine & Faculty of Health & Behavioural Sciences, University of Queensland, Brisbane, QLD, Australia
| | - N Koloski
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia.,Faculty of Medicine & Faculty of Health & Behavioural Sciences, University of Queensland, Brisbane, QLD, Australia.,Faculty of Health and Medicine, University of Newcastle, Newcastle, NSW, Australia
| | - P Funk
- Clinical Research Department, Dr. Willmar Schwabe GmbH & Co. KG, Karlsruhe, Germany
| | - B Stracke
- Clinical Research Department, Dr. Willmar Schwabe GmbH & Co. KG, Karlsruhe, Germany
| | - S Köhler
- Clinical Research Department, Dr. Willmar Schwabe GmbH & Co. KG, Karlsruhe, Germany
| | - G Holtmann
- Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia.,Faculty of Medicine & Faculty of Health & Behavioural Sciences, University of Queensland, Brisbane, QLD, Australia
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Fahey JW, Stephenson KK, Wallace AJ. Dietary amelioration of Helicobacter infection. Nutr Res 2015; 35:461-73. [PMID: 25799054 PMCID: PMC4465045 DOI: 10.1016/j.nutres.2015.03.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 03/01/2015] [Accepted: 03/02/2015] [Indexed: 12/18/2022]
Abstract
We review herein the basis for using dietary components to treat and/or prevent Helicobacter pylori infection, with emphasis on (a) work reported in the last decade, (b) dietary components for which there is mechanism-based plausibility, and (c) components for which clinical results on H pylori amelioration are available. There is evidence that a diet-based treatment may reduce the levels and/or the virulence of H pylori colonization without completely eradicating the organism in treated individuals. This concept was endorsed a decade ago by the participants in a small international consensus conference held in Honolulu, Hawaii, USA, and interest in such a diet-based approach has increased dramatically since then. This approach is attractive in terms of cost, treatment, tolerability, and cultural acceptability. This review, therefore, highlights specific foods, food components, and food products, grouped as follows: bee products (eg, honey and propolis); probiotics; dairy products; vegetables; fruits; oils; essential oils; and herbs, spices, and other plants. A discussion of the small number of clinical studies that are available is supplemented by supportive in vitro and animal studies. This very large body of in vitro and preclinical evidence must now be followed up with rationally designed, unambiguous human trials.
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Affiliation(s)
- Jed W Fahey
- Lewis B. and Dorothy Cullman Chemoprotection Center, Department of Pharmacology & Molecular Sciences, School of Medicine, Johns Hopkins University, Baltimore, MD, USA; Center for Human Nutrition, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA.
| | - Katherine K Stephenson
- Lewis B. and Dorothy Cullman Chemoprotection Center, Department of Pharmacology & Molecular Sciences, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Alison J Wallace
- New Zealand Institute for Plant and Food Research Limited, Lincoln, New Zealand
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Holtmann G, Talley NJ. Herbal medicines for the treatment of functional and inflammatory bowel disorders. Clin Gastroenterol Hepatol 2015; 13:422-32. [PMID: 24674944 DOI: 10.1016/j.cgh.2014.03.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2013] [Revised: 03/08/2014] [Accepted: 03/14/2014] [Indexed: 02/07/2023]
Abstract
In many parts of the world, there continues to be a long-standing tradition of prescribing herbal products for a range of gastrointestinal conditions. Scientific evidence supporting the use of all herbal preparations is imperfect, however, and available studies are plagued by methodological limitations. For functional gastrointestinal disorders, there is limited evidence supporting the use of some well-characterized preparations. A number of herbals have immunomodulatory activity, and in inflammatory bowel disease there are limited positive placebo-controlled trials; other studies used active controls with suboptimal doses of the comparators. Like all drugs, herbals can lead to serious adverse events (eg, hepatic failure). Quality control is a serious issue to consider when prescribing herbal medicines. Many herbal preparations are marketed without evidence for stringent adherence to good manufacturing practice guidelines. Unpredictable environmental conditions may affect the composition and the concentration of the active ingredients of plant extracts. Further, commercial herbal products usually combine a variable plethora of chemical families with possible medicinal utility. While some of these ingredients might be of benefit, the concentration and dose of these constituents needs to be closely monitored. Physicians and regulators need to remain very cautious about the use of herbal remedies. Appropriate scientific evidence for the claimed clinical benefits should become mandatory worldwide, and the standards for production and safety monitoring should comply with established standards for chemically defined products. If these principles were adopted, the full value of herbal remedies may come to light, particularly as the individually bioactive compounds present in these preparations become recognized.
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Affiliation(s)
- Gerald Holtmann
- Department of Gastroenterology and Hepatology, Princess Alexandra Hospital Brisbane, Brisbane, Queensland, Australia; Faculty of Health Sciences, University of Queensland, Brisbane, Queensland, Australia
| | - Nicholas J Talley
- Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia.
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Thippeswamy N, Naidu KA, Achur RN. Antioxidant and antibacterial properties of phenolic extract from Carum carvi L. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.jopr.2013.03.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Brierley SM, Kelber O. Use of natural products in gastrointestinal therapies. Curr Opin Pharmacol 2011; 11:604-11. [DOI: 10.1016/j.coph.2011.09.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2011] [Accepted: 09/23/2011] [Indexed: 12/17/2022]
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Valkovszki N, Németh-Zámbori É. Effects of growing conditions on content and composition of the essential oil of annual caraway (Carum carviL. var.annua). ACTA ALIMENTARIA 2011. [DOI: 10.1556/aalim.2010.0002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Abstract
Dyspepsia is a common term used for a heterogeneous group of abdominal symptoms. Functional dyspepsia (FD) is the focus of this review. The 2006 Rome III criteria defined FD and its subgroups, postprandial distress syndrome (PDS) and epigastric pain syndrome (EPS). FD is a very common condition with a high prevalence throughout the world, adversely affecting the quality of life of patients. The pathophysiology of FD has been under investigation during the past two decades. Multiple mechanisms such as abnormal gastric emptying, visceral hypersensitivity, impaired gastric accommodation, and central nervous system factors are likely involved. Several tests are available for the assessment of various physiologic functions possibly involved in the pathogenesis of FD, and some of these could be used in clinical practice, helping to understand the abnormalities underlining patients' complaints. Currently, the possibilities of pharmacological therapy for FD are still limited, however, experience of using prokinetics, tricyclic antidepressants, selective serotonin-reuptake inhibitors (SSRIs), proton-pump inhibitors (PPIs), and several alternative techniques has been accumulated. The different combinations of alterations in physiologic gastrointestinal and central nervous system functions result in the very heterogeneous nature of FD so combined approaches to these patients could be beneficial in challenging cases.
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Inamori M, Akiyama T, Akimoto K, Fujita K, Takahashi H, Yoneda M, Abe Y, Kubota K, Saito S, Ueno N, Nakajima A. Early effects of peppermint oil on gastric emptying: a crossover study using a continuous real-time 13C breath test (BreathID system). J Gastroenterol 2007; 42:539-42. [PMID: 17653649 DOI: 10.1007/s00535-007-2067-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2007] [Accepted: 04/01/2007] [Indexed: 02/04/2023]
Abstract
BACKGROUND The aim of this study was to determine whether there was a correlation between peppermint oil and gastric emptying by using a novel noninvasive technique for measuring gastric emptying with a continuous real-time (13)C breath test (BreathID system, Oridion, Israel). METHODS Ten healthy male volunteers participated in this randomized, two-way crossover study. The subjects were randomly assigned to receive a test meal (200 kcal per 200 ml) containing 0.64 ml of peppermint oil or the test meal alone, after fasting overnight. A (13)C-acetic acid breath test was continuously performed with the BreathID system, which monitors gastric emptying, for 4 h after the administration of the test meal. Using Oridion Research Software (beta version), the time for emptying of 50% of the labeled meals (T 1/2), the analog to the scintigraphy lag time for 10% emptying of the labeled meal (T lag), the gastric emptying coefficient (GEC), and the regression-estimated constants (beta and kappa) were calculated. The parameters between two occasions were compared using the Wilcoxon signed-rank test. RESULTS After peppermint oil intake, the T lag and beta constant were significantly decreased. No significant differences in T 1/2, GEC, or kappa were observed between the two occasions. CONCLUSIONS The decrease in the T lag and beta constant suggests acceleration of gastric emptying during the early phase. This study showed that peppermint oil enhances gastric emptying, suggesting the potential use of peppermint oil in clinical settings for patients with functional gastrointestinal disorders.
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Affiliation(s)
- Masahiko Inamori
- Gastroenterology Division, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
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Lahlou S, Tahraoui A, Israili Z, Lyoussi B. Diuretic activity of the aqueous extracts of Carum carvi and Tanacetum vulgare in normal rats. JOURNAL OF ETHNOPHARMACOLOGY 2007; 110:458-63. [PMID: 17113735 DOI: 10.1016/j.jep.2006.10.005] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2006] [Revised: 10/10/2006] [Accepted: 10/12/2006] [Indexed: 05/12/2023]
Abstract
In the Moroccan traditional medicine, the ripe fruits of Carum carvi L. (Apiaceae) and the leaves of Tanacetum vulgare L. (Asteraceae/Compositae), two widely available plant materials, are used as diuretics. Since, the diuretic activity of these substances has not been investigated in scientifically controlled studies, the aim of the present study was to evaluate the diuretic potential of aqueous extracts of Carum carvi fruit (caraway) and the leaves of Tanacetum vulgare (tansy) in normal rats after acute and sub-chronic oral administration. Water extracts of Carum carvi and Tanacetum vulgare (100 mg/kg) or the reference drug, furosemide (10 mg/kg) were administrated orally to male Wistar rats and their urine output was quantitated at several intervals of time after the dose. After single doses of the extracts of both caraway seeds and tansy leaves, urine output was significantly increased at all time points, and at 24 h after the dose, the total volume of urine excreted was similar for the plant extracts and furosemide. Both extracts increased urinary levels of Na(+) and K(+), to about the same extent, while furosemide increased urinary levels of only Na(+) and decreased urinary K(+). Despite changes in urinary excretion of the electrolytes, plasma Na(+) and K(+) levels were not affected by any of the three substances. In the 8-day sub-chronic study, all three substances induced significant diuresis and natriuresis; only tansy increased urinary potassium excretion. The plant extracts did not appear to have renal toxicity or any other adverse effects during the study period. In conclusion, water extracts of both Carum carvi and Tanacetum vulgare have strong diuretic action confirming their ethnopharmacological use. From the pattern of excretion of water, sodium and potassium, it may be deduced that there are atleast two types of active principals present in these extracts, one having a furosemide-like activity and the other a thiazide-like activity.
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Affiliation(s)
- Sanaa Lahlou
- UFR Physiology-Pharmacology, Laboratory of Animal Physiology, Department of Biology, Fez, Morocco
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Liebregts T, Adam B, Holtmann G. Funktionelle Dyspepsie – eine Verlegenheitsdiagnose? Internist (Berl) 2006; 47:568, 570-2, 574, passim. [PMID: 16767473 DOI: 10.1007/s00108-006-1624-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Dyspepsia comprises a broad spectrum of predominantly upper abdominal symptoms, such as pain, indigestion, nausea, early satiety and bloating. While these symptoms are highly prevalent, in less than 50% of patients presenting with dyspepsia, structural lesions or biochemical abnormalities are found that explain the symptoms when routine clinical tests are used. In patients without structural lesions the diagnosis of functional dyspepsia is justified. Exclusion of life-threatening disorders as the cause of symptoms and reassurance of the patient as well as proper explanation of the diagnosis and its underlying disease mechanisms (i.e. symptoms are due to a sensitive gut) is crucial and can be considered as an essential element of treatment. Since there is a remarkable comorbidity of anxiety and depression, psychosomatic interventions might be necessary in selected patients. Based on controlled clinical trials few drugs, such as proton pump inhibitors, prokinetics, tricyclic antidepressants, simethicone and selected herbal preparations have been found to be effective for treatment of functional dyspepsia. Effects of H. pylori eradication, even though strongly advocated, are most likely due to undiagnosed peptic ulcer disease in a very small group of patients. While there is currently no therapy that cures functional dyspepsia, the therapeutic target is to control symptoms.
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Affiliation(s)
- T Liebregts
- Department of Gastroenterology, Hepatology and General Medicine, Royal Adelaide Hospital, University of Adelaide, North Terrace, Adelaide, Australia
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Adam B, Liebregts T, Best J, Bechmann L, Lackner C, Neumann J, Koehler S, Holtmann G. A combination of peppermint oil and caraway oil attenuates the post-inflammatory visceral hyperalgesia in a rat model. Scand J Gastroenterol 2006; 41:155-60. [PMID: 16484120 DOI: 10.1080/00365520500206442] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE Visceral hyperalgesia plays a pivotal role in manifestation of symptoms in patients with functional gastrointestinal disorders. In clinical studies combined treatment of peppermint- and caraway oil significantly reduced symptoms. Thus, the aim of this study was to characterize the effects of peppermint- and caraway oil, individually and in combination, on visceral nociception in a rat model of post-inflammatory visceral hyperalgesia. MATERIAL AND METHODS On day 28, male Lewis rats (n=80) were randomized to treatment with a rectal administration of trinitrobenzene sulphonic acid (TNBS)/ethanol or physiological saline solution. To quantify the visceromotor response to a standardized colorectal distension, bipolar electrodes were implanted into the external oblique musculature, just superior to the inguinal ligament for electromyographic recordings on day 3. On day 0, baseline measurement was performed. Thereafter, oral treatment with peppermint- or caraway oil or combination treatment was started and continued for 14 consecutive days. After 7 and 14 days of treatment a colorectal distension was performed. Colonic tissue samples were obtained on days 0, 7 and 14 to assess histological alterations due to the different treatment groups and the influence of different compounds. RESULTS After a single instillation of TNBS/ethanol persistent elevation of the visceromotor response at all different time-points was observed, although colonic mucosa was completely normal. After 14 days of combined treatment with peppermint- and caraway oil, a reduced visceromotor response of up to 50% compared to placebo was detected in TNBS/ethanol pretreated animals. In contrast, neither peppermint- nor caraway oil had a significant effect on post-inflammatory visceral hyperalgesia. In saline-treated controls there was no significant difference in the visceromotor response. CONCLUSIONS These data show that combined treatment with peppermint- and caraway oil modulates post-inflammatory visceral hyperalgesia synergistically. The exact mechanisms have to be further investigated.
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Affiliation(s)
- Birgit Adam
- Department of Gastroenterology, Hepatology and General Medicine, University of Adelaide, Royal Adelaide Hospital, Adelaide, South Australia, Australia
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Schemann M, Michel K, Zeller F, Hohenester B, Rühl A. Region-specific effects of STW 5 (Iberogast) and its components in gastric fundus, corpus and antrum. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2006; 13 Suppl 5:90-9. [PMID: 16765572 DOI: 10.1016/j.phymed.2006.03.020] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Functional dyspepsia (FD) is a disorder that involves impaired gastric accommodation, antral hypomotility, and upper abdominal pain. The herbal drug STW 5 (Iberogast) is used to successfully treat FD patients. Here, we report in vitro data revealing the mode of action of STW 5 and its individual herbal extracts on gastric motility. STW 5 evoked a relaxation of the proximal stomach but increased antral motility. Both effects are myogenic. The extracts of Angelica root, chamomile flower and liquorice root mimicked the inhibitory effects in the proximal stomach whereas the extracts of greater celandine herb, Melissa leaf, caraway fruit and bitter candy tuft increased motility of the proximal stomach. All extracts increased motility in the antrum comparable to the effects of STW 5. We conclude that the differential effects of STW 5 on proximal and distal stomach motor activity are not caused by solely spasmolytic or anti-spasmolytic effects of the individual components. It is suggested that the individual extracts target transduction mechanisms that are specifically expressed in the proximal vs. distal stomach. We present a rationale for the differential effect of STW 5 which is a result of the combined actions of its individual components and reason that the inhibitory effects in the proximal and the excitatory effects in the distal stomach may contribute to symptom relief in FD patients treated with STW 5 (Iberogast).
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Affiliation(s)
- M Schemann
- Department of Human Biology, Technische Universität München, 85354 Freising, Germany.
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Abstract
The common characteristic criteria of all functional gastrointestinal (GI) disorders are the persistence and recurrence of variable gastrointestinal symptoms that cannot be explained by any structural or biochemical abnormalities. Functional dyspepsia (FD) represents one of the important GI disorders in Western countries because of its remarkably high prevalence in general population and its impact on quality of life. Due to its dependence on both subjective determinants and diverse country-specific circumstances, the definition and management strategies of FD are still variably stated. Clinical trials with several drug classes (e.g., proton pump inhibitors, H2-blockers, prokinetic drugs) have been performed frequently without validated disease-specific test instruments for the outcome measurements. Therefore, the interpretation of such trials remains difficult and controversial with respect to comparability and evaluation of drug efficacy, and definite conclusions can be drawn neither for diagnostic management nor for efficacious drug therapy so far. In view of these unsolved problems, guidelines both on the clinical management of FD and on the performance of clinical trials are needed. In recent years, increasing research work has been done in this area. Clinical trials conducted in adequately diagnosed patients that provided validated outcome measurements may result in better insights leading to more effective treatment strategies. Encouraging perspectives have been recently performed by methodologically well-designed treatment studies with herbal drug preparations. Herbal drugs, given their proven efficacy in clinical trials, offer a safe therapeutic alternative in the treatment of FD which is often favored by both patients and physicians. A fixed combination of peppermint oil and caraway oil in patients suffering from FD could be proven effective by well-designed clinical trials.
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Affiliation(s)
- Ahmed Madisch
- Medical Department I, Technical University Hospital, Fetscherstrasse 74, D-01307 Dresden, Germany.
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Hohenester B, Rühl A, Kelber O, Schemann M. The herbal preparation STW5 (lberogast) has potent and region-specific effects on gastric motility. Neurogastroenterol Motil 2004; 16:765-73. [PMID: 15601427 DOI: 10.1111/j.1365-2982.2004.00548.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Functional dyspepsia (FD) is amongst the most common functional gastrointestinal disorders. Symptomatic treatment includes the use of herbal preparations whose effects on gastric motility are unclear. The present study aimed at investigating the effects of STW 5 (Iberogast), a fixed combination of hydroethanolic herbal extracts, on gastric motility in vitro. Muscle strips from guinea-pig gastric fundus, corpus and antrum were set up in organ baths either in circular or longitudinal orientation. Addition of ethanol-free STW 5 to the organ baths (32-512 microg mL(-1)) dose-dependently evoked a sustained and reversible relaxation of circular and longitudinal fundus and corpus muscle strips without changes in phasic activity. In contrast, antral muscle strips responded to STW 5 with a significant increase in the contractile force of phasic contractions without changes in tone. All effects were resistant to tetrodotoxin (0.5 micromol L(-1)), atropine (1 micromol L(-1)), omega-conotoxin GVIA (0.5 micromol L(-1)), capsaicin (1 micromol L(-1)) or L-NAME (100 micromol L(-1)), suggesting that neither nerves nor nitric oxide pathways were involved. These data demonstrate that STW 5 profoundly alters gastric motility in a region-specific but not layer-specific manner and thus implicates Iberogast in the treatment of FD patients suffering from motility disorders with impaired fundus accommodation and/or antral hypomotility.
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Affiliation(s)
- B Hohenester
- Department of Human Biology, Technical University Munich, Munich, Germany
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