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Feng C, Fay KE, Burns MM. Toxicities of herbal abortifacients. Am J Emerg Med 2023; 68:42-46. [PMID: 36924751 PMCID: PMC10192026 DOI: 10.1016/j.ajem.2023.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 03/01/2023] [Indexed: 03/09/2023] Open
Abstract
BACKGROUND In the post-Roe era, barriers to facility-based abortions may lead to an increased incidence of self-managed abortions. While misoprostol-based medication abortions have significant literature supporting its safety profile, there is a knowledge deficit within the medical community regarding the toxicities of commonly used herbal abortifacients. METHODS This is a narrative review, based on a MEDLINE and HOLLIS database search, of self-managed abortion methods with herbal abortifacients and their associated toxicities. RESULTS Common herbal abortifacients with significant morbidity and mortality implications include pennyroyal, blue cohosh, rue, and quinine. Other commonly reported abortifacients considered to be less toxic also are discussed in brief. Special considerations for hepatic, cardiac, renal, and hematologic toxicities are important in patients with significant exposures to these herbal substances. CONCLUSION There is an anticipated increase in the utility of herbal xenobiotics for self-managed abortions with post-Roe restrictions to standard mifepristone-misoprostol protocols. Frontline providers should be aware of the associated toxicities and have special considerations when treating a poisoned patient in this population.
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Affiliation(s)
- Chris Feng
- Harvard Medical Toxicology, Division of Emergency Medicine, Boston Children's Hospital, Boston, MA, USA.
| | - Kathryn E Fay
- Department of Obstetrics, Gynecology and Reproductive Medicine, Harvard Medical School, Boston, MA, USA
| | - Michele M Burns
- Harvard Medical Toxicology, Division of Emergency Medicine, Boston Children's Hospital, Boston, MA, USA
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Mohapatra S, Iqubal A, Ansari MJ, Jan B, Zahiruddin S, Mirza MA, Ahmad S, Iqbal Z. Benefits of Black Cohosh (Cimicifuga racemosa) for Women Health: An Up-Close and In-Depth Review. Pharmaceuticals (Basel) 2022; 15:ph15030278. [PMID: 35337076 PMCID: PMC8953734 DOI: 10.3390/ph15030278] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 02/20/2022] [Accepted: 02/21/2022] [Indexed: 12/18/2022] Open
Abstract
Women’s health is an imminent concern worldwide, but it remains an ignored segment of research in most developing countries, and is yet to take the center stage in even developed nations. Some exclusive female health concerns revolve around both pathological and physiological aspects. These gender-specific maladies include breast, cervical, and ovarian cancers, and physiological concerns such as menopause and osteoporosis, which are often coexistent. Recently, women’s health issues, including postmenopausal syndrome, have attracted the attention of researchers and practitioners alike, opening newer pharmaceutical research and clinical avenues. Although not counted as a disease, postmenopausal syndrome (PMS) is a female health phenomenon underpinned by hormonal depletion. Enhanced life expectancy in women has added to their suffering, and pharmacological interventions are needed. Amongst the available treatment modalities, the use of numerous botanicals has emerged as an efficient health management tool for women. Cimicifuga racemosa (CR or Black Cohosh) is a plant/herb which has been traditionally exploited and extensively used by women. This review is an attempt to compile and provide a summary of the importance of CR in complementary and alternative therapies for the improvement of various disorders related to women, such as menopausal syndrome, mammary cancer, and osteoporosis. It aims to systematically highlight the bioactive constituents, pharmacology, pharmacokinetics, therapeutic potentials, quality control processes, chromatographic techniques, and possible mechanisms of action of clinically effective phytomedicine for women’s health. Various clinical trials and patents relating to CR and women’s health have been collated. Furthermore, the plant and its related products have been considered from a regulatory perspective to reveal its commercial feasibility. The present review summarizes the existing data on CR focusing on women’s health, which can help to introduce this traditional phytomedicine to the world and provide some reference for future drug development.
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Affiliation(s)
- Sradhanjali Mohapatra
- Nanotechnology Lab, School of Pharmaceutics Education and Research (SPER), Jamia Hamdard University, New Delhi 110062, India;
- Bioactive Natural Product Laboratory, School of Pharmaceutics Education and Research (SPER), Jamia Hamdard University, New Delhi 110062, India; (B.J.); (S.Z.)
| | - Ashif Iqubal
- Department of Pharmacology, School of Pharmaceutics Education and Research (SPER), Jamia Hamdard University, New Delhi 110062, India;
| | - Mohammad Javed Ansari
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia;
| | - Bisma Jan
- Bioactive Natural Product Laboratory, School of Pharmaceutics Education and Research (SPER), Jamia Hamdard University, New Delhi 110062, India; (B.J.); (S.Z.)
| | - Sultan Zahiruddin
- Bioactive Natural Product Laboratory, School of Pharmaceutics Education and Research (SPER), Jamia Hamdard University, New Delhi 110062, India; (B.J.); (S.Z.)
| | - Mohd Aamir Mirza
- Nanotechnology Lab, School of Pharmaceutics Education and Research (SPER), Jamia Hamdard University, New Delhi 110062, India;
- Correspondence: (M.A.M.); (S.A.); (Z.I.); Tel.: +98-11-733-016 (Z.I.)
| | - Sayeed Ahmad
- Bioactive Natural Product Laboratory, School of Pharmaceutics Education and Research (SPER), Jamia Hamdard University, New Delhi 110062, India; (B.J.); (S.Z.)
- Correspondence: (M.A.M.); (S.A.); (Z.I.); Tel.: +98-11-733-016 (Z.I.)
| | - Zeenat Iqbal
- Nanotechnology Lab, School of Pharmaceutics Education and Research (SPER), Jamia Hamdard University, New Delhi 110062, India;
- Correspondence: (M.A.M.); (S.A.); (Z.I.); Tel.: +98-11-733-016 (Z.I.)
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Herb-Induced Liver Injury by Cimicifuga racemosa and Thuja occidentalis Herbal Medications for Fertility. Case Rep Gastrointest Med 2021; 2021:8858310. [PMID: 33532101 PMCID: PMC7814407 DOI: 10.1155/2021/8858310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 01/08/2021] [Accepted: 01/11/2021] [Indexed: 11/30/2022] Open
Abstract
Herb-induced liver injury (HILI) is often an underreported sequela for many herbal remedies due to the lack of safety measurements involving these supplements. Cimicifuga racemosa and Thuja occidentalis are two herbal medications commonly used by women for fertility purposes. Many herbal preparations of these two supplements do not specify the risks behind their individual usage. We present a case of a 40-year-old woman who developed acute liver injury after concomitant use of these two products assessed for causality using the updated RUCAM. Upon a detailed investigation, the patient did not have evidence of underlying liver disease or any other risk factors to explain her presentation. After discontinuation of both herbal supplements, the patient had complete resolution of her symptoms and a significant improvement of transaminitis. This report highlights the importance of potential risk of hepatotoxicity induced by concomitant use of Cimicifuga racemosa and Thuja occidentalis.
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Teschke R, Zhu Y, Jing J. Herb-induced Liver Injury in Asia and Current Role of RUCAM for Causality Assessment in 11,160 Published Cases. J Clin Transl Hepatol 2020; 8:200-214. [PMID: 32832401 PMCID: PMC7438347 DOI: 10.14218/jcth.2020.00009] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 03/05/2020] [Accepted: 03/31/2020] [Indexed: 12/13/2022] Open
Abstract
Herb-induced liver injuries (HILI) by traditional herbal medicines are particular challenges in Asian countries, with issues over the best approach to establish causality. The aim of the current analysis was to provide an overview on how causality was assessed in HILI cases from Asian countries and whether the Roussel Uclaf Causality Assessment Method (RUCAM) was the preferred diagnostic algorithm, as shown before in worldwide evaluated cases of drug-induced liver injury (DILI). Using the PubMed database, publications in English language were preferred to allow for reevaluation by peers. Overall 11,160 HILI cases have assessed causality using RUCAM and were published by first authors working in Asian countries. With 21 evaluable reports, most publications came from mainland China, with Hong Kong and Taiwan, followed by Korea (n=15), Singapore (n=2), and Japan (n=1), while other Asian countries were not contributory. Most publications provided case and RUCAM data of good quality. For better presentation of future cases, however, the following recommendations are given: (1) preference of prospective study design with use of the updated RUCAM version; (2) clear separation of HILI cohorts from those of other herbal products or DILI; (3) case series for epidemiology studies should contain many essential data, possibly also as supplementary material; (4) otherwise, preference of single case reports providing individual case data and RUCAM-based causality gradings, and applying liver test threshold values; and (5) publication in English language journals. In conclusion, China and Korea are top in presenting RUCAM-based HILI cases, other Asian countries are encouraged to follow.
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Affiliation(s)
- Rolf Teschke
- Department of Internal Medicine II, Division of Gastroenterology and Hepatology, Klinikum Hanau, Hanau, Academic Teaching Hospital of the Medical Faculty, Goethe University Frankfurt/ Main, Frankfurt/Main, Germany
- Correspondence to: Rolf Teschke, Department of Internal Medicine II, Klinikum Hanau, Teaching Hospital of the Goethe University of Frankfurt/Main, Leimenstrasse 20, D-63450 Hanau, Germany. Tel: +49-6181-21859, Fax: +49-6181-2964211, E-mail:
| | - Yun Zhu
- The Fifth Medical Center, General Hospital of PLA, Beijing, China
| | - Jing Jing
- The Fifth Medical Center, General Hospital of PLA, Beijing, China
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van Hunsel F, van de Koppel S, Skalli S, Kuemmerle A, Teng L, Wang JB, Barnes J. Analysis of Hepatobiliary Disorder Reports Associated With the Use of Herbal Medicines in the Global Suspected ADR Database Vigibase. Front Pharmacol 2019; 10:1326. [PMID: 31780942 PMCID: PMC6851844 DOI: 10.3389/fphar.2019.01326] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 10/15/2019] [Indexed: 12/12/2022] Open
Abstract
Introduction: Use of herbal medicines (HMs) is widespread across the world, with many people relying on HMs for their primary healthcare or using HMs in the context of a healthy life style. HMs originate from plant material and, as such, are often seen as "natural" and believed to be (relatively) safe by patients. Hepatobiliary disorders have been associated with numerous HMs. Aim: This paper aims to analyze reporting patterns for hepatobiliary disorders associated with HMs use from reports submitted to the WHO global database of individual case safety reports (ICSRs) VigiBase. Methods: A data extraction in VigiBase, the WHO international database of ICSR reports, was performed by the Uppsala Monitoring Centre on 2019-01-16. The dataset contained all ICSRs where an HM was identified with the UMC-assigned ATC code "V90: unspecified herbal and traditional medicine" and where the HM was classified as being either the suspected drug or an interacting drug, and containing at least one adverse reaction in the MedDRA® System Organ Class (SOC) Hepatobiliary Disorders (HBD). Descriptive analyses in Excel 2013® were used to determine general characteristics of the reports in the broad data set, including total number of reports, reporting country and patient characteristics. For single suspect herbal reports, reports categorized as "serious" according to CIOMS criteria (CIOMS), 2001) were extracted. Results: In total, 2,483 reports describing with at least one ADR in the SOC HBD were extracted from VigiBase. In total, 780 (31.4%) reports concern only one suspect HM. However, for 188 reports of these reports (24.1%), the single suspect herbal preparation contains more than one herbal ingredient. The 592 reports for single suspect herbal preparations described a total of 764 ADRs in the SOC HBD. Jaundice was the most reported ADR for these reports. Conclusion: Almost 2,500 reports for HMs and with at least one ADR coded to the MedDRA® SOC HBD were retrieved from VigiBase. Of the HBD SOC HM reports, around 25% concerned a single herbal species as the suspect "drug." Substantial issues with coding of the suspect herbal drugs were found. In-depth causality assessment of the cases is needed to draw conclusions on the strength of the relationships.
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Affiliation(s)
- Florence van Hunsel
- The Netherlands Pharmacovigilance Centre Lareb, ‘s-Hertogenbosch, Netherlands
| | - Sonja van de Koppel
- The Netherlands Pharmacovigilance Centre Lareb, ‘s-Hertogenbosch, Netherlands
| | - Souad Skalli
- Microbiology and Molecular Biology Team, Center of Plant and Microbial Biotechnology, Biodiversity and Environment, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco
| | - Andrea Kuemmerle
- Department of Medicine, Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Lida Teng
- Department of Health Economics and Outcomes Research, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Jia-bo Wang
- Institute of Chinese Herbal Medicine, Beijing Integrative Medical Center for Liver Diseases, Beijing 302 Hospital of China, Beijing, China
| | - Joanne Barnes
- School of Pharmacy, The University of Auckland, Auckland, New Zealand
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Teschke R, Danan G. Causality Assessment Methods in Drug-Induced Liver Injury. METHODS IN PHARMACOLOGY AND TOXICOLOGY 2018. [DOI: 10.1007/978-1-4939-7677-5_27] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Alonso-Castro AJ, Domínguez F, Ruiz-Padilla AJ, Campos-Xolalpa N, Zapata-Morales JR, Carranza-Alvarez C, Maldonado-Miranda JJ. Medicinal Plants from North and Central America and the Caribbean Considered Toxic for Humans: The Other Side of the Coin. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2017; 2017:9439868. [PMID: 29234446 PMCID: PMC5688365 DOI: 10.1155/2017/9439868] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 10/04/2017] [Accepted: 10/10/2017] [Indexed: 01/09/2023]
Abstract
The consumption of medicinal plants has notably increased over the past two decades. People consider herbal products as safe because of their natural origin, without taking into consideration whether these plants contain a toxic principle. This represents a serious health problem. A bibliographic search was carried out using published scientific material on native plants from Mexico, Central America, and the Caribbean, which describe the ethnobotanical and toxicological information of medicinal plants empirically considered to be toxic. A total of 216 medicinal plants belonging to 77 families have been reported as toxic. Of these plants, 76 had been studied, and 140 plants lacked studies regarding their toxicological effects. The toxicity of 16 plants species has been reported in clinical cases, particularly in children. From these plants, deaths have been reported with the consumption of Chenopodium ambrosioides, Argemone mexicana, and Thevetia peruviana. In most of the cases, the principle of the plant responsible for the toxicity is unknown. There is limited information about the toxicity of medicinal plants used in Mexico, Central America, and the Caribbean. More toxicological studies are necessary to contribute information about the safe use of the medicinal plants cited in this review.
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Affiliation(s)
- Angel Josabad Alonso-Castro
- Departamento de Farmacia, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, GTO, Mexico
| | - Fabiola Domínguez
- Centro de Investigación Biomédica de Oriente, Instituto Mexicano del Seguro Social, Metepec, PUE, Mexico
| | - Alan Joel Ruiz-Padilla
- Departamento de Farmacia, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, GTO, Mexico
| | - Nimsi Campos-Xolalpa
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana, Unidad Xochimilco, Mexico City, Mexico
| | - Juan Ramón Zapata-Morales
- Departamento de Farmacia, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, GTO, Mexico
| | - Candy Carranza-Alvarez
- Unidad Académica Multidisciplinaria de la Zona Huasteca, Universidad Autónoma de San Luis Potosí, Ciudad Valles, SLP, Mexico
| | - Juan Jose Maldonado-Miranda
- Unidad Académica Multidisciplinaria de la Zona Huasteca, Universidad Autónoma de San Luis Potosí, Ciudad Valles, SLP, Mexico
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8
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Whicker M, Black J, Altwerger G, Menderes G, Feinberg J, Ratner E. Management of sexuality, intimacy, and menopause symptoms in patients with ovarian cancer. Am J Obstet Gynecol 2017; 217:395-403. [PMID: 28411144 DOI: 10.1016/j.ajog.2017.04.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 04/03/2017] [Accepted: 04/04/2017] [Indexed: 12/19/2022]
Abstract
Issues of sexuality, intimacy, and early menopause significantly impact the quality of life of patients following the diagnosis and treatment of ovarian cancer. These are undertreated problems. Successful treatment requires the provider's awareness of the problem, ability to identify it, and willingness to treat it. Unfortunately many providers do not address these issues in the pretreatment or perioperative period. Furthermore, patients do not often alert their providers to their symptoms. While systemic hormone therapy may improve many of the issues, they are not appropriate for all patients given their action on estrogen receptors. However, other nonhormonal treatments exist including selective serotonin reuptake inhibitors, antiepileptics, natural remedies, and pelvic floor physical therapy. In addition psychological care and the involvement of the partner can be helpful in managing the sexual health concerns of these patients. At the time of diagnosis or at initial consultation, women should be informed of the potential physiologic, hormonal, and psychosocial effects of ovarian cancer on sexuality and that there is a multimodal approach to dealing with symptoms.
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Affiliation(s)
- Margaret Whicker
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University, New Haven, CT
| | - Jonathan Black
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University, New Haven, CT.
| | - Gary Altwerger
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University, New Haven, CT
| | - Gulden Menderes
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University, New Haven, CT
| | - Jacqueline Feinberg
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University, New Haven, CT
| | - Elena Ratner
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University, New Haven, CT
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9
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Frenzel C, Teschke R. Herbal Hepatotoxicity: Clinical Characteristics and Listing Compilation. Int J Mol Sci 2016; 17:E588. [PMID: 27128912 PMCID: PMC4881436 DOI: 10.3390/ijms17050588] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 03/31/2016] [Accepted: 04/11/2016] [Indexed: 12/13/2022] Open
Abstract
Herb induced liver injury (HILI) and drug induced liver injury (DILI) share the common characteristic of chemical compounds as their causative agents, which were either produced by the plant or synthetic processes. Both, natural and synthetic chemicals are foreign products to the body and need metabolic degradation to be eliminated. During this process, hepatotoxic metabolites may be generated causing liver injury in susceptible patients. There is uncertainty, whether risk factors such as high lipophilicity or high daily and cumulative doses play a pathogenetic role for HILI, as these are under discussion for DILI. It is also often unclear, whether a HILI case has an idiosyncratic or an intrinsic background. Treatment with herbs of Western medicine or traditional Chinese medicine (TCM) rarely causes elevated liver tests (LT). However, HILI can develop to acute liver failure requiring liver transplantation in single cases. HILI is a diagnosis of exclusion, because clinical features of HILI are not specific as they are also found in many other liver diseases unrelated to herbal use. In strikingly increased liver tests signifying severe liver injury, herbal use has to be stopped. To establish HILI as the cause of liver damage, RUCAM (Roussel Uclaf Causality Assessment Method) is a useful tool. Diagnostic problems may emerge when alternative causes were not carefully excluded and the correct therapy is withheld. Future strategies should focus on RUCAM based causality assessment in suspected HILI cases and more regulatory efforts to provide all herbal medicines and herbal dietary supplements used as medicine with strict regulatory surveillance, considering them as herbal drugs and ascertaining an appropriate risk benefit balance.
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Affiliation(s)
- Christian Frenzel
- Department of Medicine I, University Medical Center Hamburg Eppendorf, Martinistrasse 52, D-20246 Hamburg, Germany.
| | - Rolf Teschke
- Department of Internal Medicine II, Division of Gastroenterology and Hepatology, Klinikum Hanau, Teaching Hospital of the Medical Faculty, Goethe University Frankfurt/Main, 63450 Hanau, Germany.
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Danan G, Teschke R. RUCAM in Drug and Herb Induced Liver Injury: The Update. Int J Mol Sci 2015; 17:E14. [PMID: 26712744 PMCID: PMC4730261 DOI: 10.3390/ijms17010014] [Citation(s) in RCA: 450] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Revised: 12/07/2015] [Accepted: 12/09/2015] [Indexed: 12/12/2022] Open
Abstract
RUCAM (Roussel Uclaf Causality Assessment Method) or its previous synonym CIOMS (Council for International Organizations of Medical Sciences) is a well established tool in common use to quantitatively assess causality in cases of suspected drug induced liver injury (DILI) and herb induced liver injury (HILI). Historical background and the original work confirm the use of RUCAM as single term for future cases, dismissing now the term CIOMS for reasons of simplicity and clarity. RUCAM represents a structured, standardized, validated, and hepatotoxicity specific diagnostic approach that attributes scores to individual key items, providing final quantitative gradings of causality for each suspect drug/herb in a case report. Experts from Europe and the United States had previously established in consensus meetings the first criteria of RUCAM to meet the requirements of clinicians and practitioners in care for their patients with suspected DILI and HILI. RUCAM was completed by additional criteria and validated, assisting to establish the timely diagnosis with a high degree of certainty. In many countries and for more than two decades, physicians, regulatory agencies, case report authors, and pharmaceutical companies successfully applied RUCAM for suspected DILI and HILI. Their practical experience, emerging new data on DILI and HILI characteristics, and few ambiguous questions in domains such alcohol use and exclusions of non-drug causes led to the present update of RUCAM. The aim was to reduce interobserver and intraobserver variability, to provide accurately defined, objective core elements, and to simplify the handling of the items. We now present the update of the well accepted original RUCAM scale and recommend its use for clinical, regulatory, publication, and expert purposes to validly establish causality in cases of suspected DILI and HILI, facilitating a straightforward application and an internationally harmonized approach of causality assessment as a common basic tool.
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Affiliation(s)
- Gaby Danan
- Pharmacovigilance Consultancy, rue des Ormeaux, 75020 Paris, France.
| | - Rolf Teschke
- Department of Internal Medicine II, Division of Gastroenterology and Hepatology, Klinikum Hanau, Academic Teaching Hospital of the Medical Faculty, Goethe University Frankfurt/Main, Frankfurt am Main, D-63450 Hanau, Germany.
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Wuttke W, Seidlová-Wuttke D. Black cohosh (Cimicifuga racemosa) is a non-estrogenic alternative to hormone replacement therapy. CLINICAL PHYTOSCIENCE 2015. [DOI: 10.1186/s40816-015-0013-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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12
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Wegener T, Deitelhoff B, Silber-Mankowsky A. Drug safety aspects of herbal medicinal products. Wien Med Wochenschr 2015; 165:243-50. [DOI: 10.1007/s10354-015-0370-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 06/23/2015] [Indexed: 11/25/2022]
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13
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Comhaire FH, Depypere HT. Hormones, herbal preparations and nutriceuticals for a better life after the menopause: part II. Climacteric 2015; 18:364-71. [DOI: 10.3109/13697137.2014.985646] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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14
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Krause MS, Nakajima ST. Hormonal and nonhormonal treatment of vasomotor symptoms. Obstet Gynecol Clin North Am 2014; 42:163-79. [PMID: 25681847 DOI: 10.1016/j.ogc.2014.09.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This article focuses on the cause, pathophysiology, differential diagnosis of, and treatment options for vasomotor symptoms. In addition, it summarizes important points for health care providers caring for perimenopausal and postmenopausal women with regard to health maintenance, osteoporosis, cardiovascular disease, and vaginal atrophy. Treatment options for hot flashes with variable effectiveness include systemic hormone therapy (estrogen/progestogen), nonhormonal pharmacologic therapies (selective serotonin reuptake inhibitors, selective norepinephrine reuptake inhibitors, clonidine, gabapentin), and nonpharmacologic therapy options (behavioral changes, acupuncture). Risks and benefits as well as contraindications for hormone therapy are further discussed.
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Affiliation(s)
- Miriam S Krause
- Fertility and Endocrine Associates, 4121 Dutchman's Lane, Suite 414, Louisville, KY 40207, USA.
| | - Steven T Nakajima
- Stanford Fertility and Reproductive Medicine Center, 900 Welch Road, Suite 20, Palo Alto, CA 94304, USA
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15
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Ulbricht C, Windsor RC. An Evidence-Based Systematic Review of Black cohosh (Cimicifuga racemosa, Actaea racemosa) by the Natural Standard Research Collaboration. J Diet Suppl 2014; 12:265-358. [PMID: 25153652 DOI: 10.3109/19390211.2014.946731] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An evidence-based systematic review of black cohosh (Cimicifuga racemosa, Actaea racemosa) by the Natural Standard Research Collaboration consolidates the safety and efficacy data available in the scientific literature using a validated, reproducible grading rationale. This article includes written and statistical analysis of clinical trials, plus a compilation of expert opinion, folkloric precedent, history, pharmacology, kinetics/dynamics, interactions, adverse effects, toxicology, and dosing.
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Affiliation(s)
| | - Jorge Rakela
- Transplant Center, Mayo Clinic, Phoenix, Arizona
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17
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Teschke R, Genthner A, Wolff A, Frenzel C, Schulze J, Eickhoff A. Herbal hepatotoxicity: analysis of cases with initially reported positive re-exposure tests. Dig Liver Dis 2014; 46:264-9. [PMID: 24315480 DOI: 10.1016/j.dld.2013.10.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Revised: 10/21/2013] [Accepted: 10/30/2013] [Indexed: 12/11/2022]
Abstract
BACKGROUND Positive re-exposure tests are diagnostic hallmarks for hepatotoxicity. OBJECTIVE To test validity of positive re-exposures in herb induced liver injury. METHODS We searched Medline database for cases of herb induced liver injury with positive re-exposures and analysed 34 cases for positive re-exposure test criteria of baseline alanine aminotransferase< 5N before re-exposure, and re-exposure alanine aminotransferase ≥ 2× baseline alanine aminotransferase. Re-exposure test was negative, if baseline alanine aminotransferase< 5N combined with re-exposure alanine aminotransferase< 2× baseline alanine aminotransferase, or if baseline alanine aminotransferase≥ 5N regardless of the re-exposure alanine aminotransferase including no available re-exposure alanine aminotransferase result. RESULTS In 21/34 cases (61.8%), criteria for a positive re-exposure were fulfilled, with negative tests in 6/34 cases (17.6%) or uninterpretable ones in 7/34 cases (20.6%). Confirmed positive re-exposure tests established potential of herb induced liver injury for Aloe, Chaparral, Chinese herbal mixtures, Chinese Jin Bu Huan, Chinese Syo Saiko To, Germander, Greater Celandine, Green tea, Kava, Mistletoe, Polygonum multiflorum, and Senna, with up to 4 case reports per herb. CONCLUSIONS Among 34 cases of herb-induced liver injury with initially reported positive re-exposure tests, 61.8% of the cases actually fulfilled established test criteria and provided firm diagnoses of herb induced liver injury by various herbs.
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Affiliation(s)
- Rolf Teschke
- Department of Internal Medicine II, Division of Gastroenterology and Hepatology, Klinikum Hanau, Academic Teaching Hospital of the Medical Faculty of the Goethe University, Frankfurt/Main, Germany.
| | - Alexander Genthner
- Department of Internal Medicine II, Division of Gastroenterology and Hepatology, Klinikum Hanau, Academic Teaching Hospital of the Medical Faculty of the Goethe University, Frankfurt/Main, Germany
| | - Albrecht Wolff
- Department of Internal Medicine II, Division of Gastroenterology, Hepatology and Infectious Diseases, Friedrich Schiller University Jena, Germany
| | - Christian Frenzel
- Department of Medicine I, University Medical Center Hamburg Eppendorf, Germany
| | - Johannes Schulze
- Institute of Industrial, Environmental and Social Medicine, Medical Faculty, Goethe University Frankfurt/Main, Germany
| | - Axel Eickhoff
- Department of Internal Medicine II, Division of Gastroenterology and Hepatology, Klinikum Hanau, Academic Teaching Hospital of the Medical Faculty of the Goethe University, Frankfurt/Main, Germany
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Qiu F, McAlpine JB, Krause EC, Chen SN, Pauli GF. Pharmacognosy of Black Cohosh: The Phytochemical and Biological Profile of a Major Botanical Dietary Supplement. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 99 2014; 99:1-68. [DOI: 10.1007/978-3-319-04900-7_1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Abstract
BACKGROUND AND OBJECTIVES Alternative explanations are common in suspected drug-induced liver injury (DILI) and account for up to 47.1% of analyzed cases. This raised the question of whether a similar frequency may prevail in cases of assumed herb-induced liver injury (HILI). METHODS We searched the Medline database for the following terms: herbs, herbal drugs, herbal dietary supplements, hepatotoxic herbs, herbal hepatotoxicity, and herb-induced liver injury. Additional terms specifically addressed single herbs and herbal products: black cohosh, Greater Celandine, green tea, Herbalife products, Hydroxycut, kava, and Pelargonium sidoides. We retrieved 23 published case series and regulatory assessments related to hepatotoxicity by herbs and herbal dietary supplements with alternative causes. RESULTS The 23 publications comprised 573 cases of initially suspected HILI; alternative causes were evident in 278/573 cases (48.5%). Among them were hepatitis by various viruses (9.7%), autoimmune diseases (10.4%), nonalcoholic and alcoholic liver diseases (5.4%), liver injury by comedication (DILI and other HILI) (43.9%), and liver involvement in infectious diseases (4.7%). Biliary and pancreatic diseases were frequent alternative diagnoses (11.5%), raising therapeutic problems if specific treatment is withheld; pre-existing liver diseases including cirrhosis (9.7%) were additional confounding variables. Other diagnoses were rare, but possibly relevant for the individual patient. CONCLUSION In 573 cases of initially assumed HILI, 48.5% showed alternative causes unrelated to the initially incriminated herb, herbal drug, or herbal dietary supplement, calling for thorough clinical evaluations and appropriate causality assessments in future cases of suspected HILI.
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Beer AM, Neff A. Differentiated Evaluation of Extract-Specific Evidence on Cimicifuga racemosa's Efficacy and Safety for Climacteric Complaints. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2013; 2013:860602. [PMID: 24062793 PMCID: PMC3767045 DOI: 10.1155/2013/860602] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Accepted: 06/21/2013] [Indexed: 01/26/2023]
Abstract
Past reviews on Cimicifuga racemosa (CR) without differentiation between extracts, quality, and indication altogether led to inconsistent data. Therefore, for the first time, we meet the requirements of the system's logic of evidence-based phytotherapy by taking into consideration extracts, pharmaceutical quality (reflected in a regulatory status as medicinal product), and indication. A literature search for clinical studies examining CR's efficacy and safety for menopausal complaints was conducted. The results were sorted by type of extract, regulatory status, and indication. Accordingly, Oxford Levels of Evidence (LOE) and Grades of Recommendation (GR) were determined. CR extracts demonstrated a good to very good safety in general, on estrogen-sensitive organs and the liver. However, only registered CR medicinal products were able to prove their efficacy. Best evidence was provided by the isopropanolic CR extract (iCR): the multitude of studies including more than 11,000 patients demonstrated consistent confirmatory evidence of LOE 1b (LOE 1a for safety) leading to GR A. The studies on the ethanolic extract BNO 1055 including more than 500 patients showed exploratory evidence of LOE 2b resulting in GR B. A positive benefit-risk profile is stated and limited to Cimicifuga racemosa products holding a marketing authorisation for treating climacteric complaints.
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Affiliation(s)
- A.-M. Beer
- Department of Naturopathy, Blankenstein Hospital, Im Vogelsang 5-11, 45527 Hattingen, Germany
| | - A. Neff
- Department of Gynecology, Lübbecke Hospital, Virchowstraße 65, 32312 Lübbecke, Germany
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Teschke R, Schwarzenboeck A, Eickhoff A, Frenzel C, Wolff A, Schulze J. Clinical and causality assessment in herbal hepatotoxicity. Expert Opin Drug Saf 2013; 12:339-66. [PMID: 23458441 DOI: 10.1517/14740338.2013.774371] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
INTRODUCTION Herbal hepatotoxicity represents a poorly understood, neglected and multifaceted disease with numerous confounding variables and missing established causality in the majority of cases. This review discusses overt shortcomings in its clinical and causality assessment and suggests improvements. AREAS COVERED A selective literature search of PubMed using the terms herbal hepatotoxicity, herb-induced liver injury, drug hepatotoxicity and drug-induced liver injury was performed to identify published case reports, spontaneous case reports, case series and review articles regarding hepatotoxicity due to herbs, herbal drugs and herbal dietary supplements. Covered areas focused on confounding variables related to the documentation of the herbal product and the clinical course, hepatotoxicity and reexposure criteria, temporal association, comedication and alternative causes with special attention to preexisting diseases of the liver, bile ducts and the pancreas. Of particular interest were recent discussions of approaches designed and validated for hepatotoxicity causality, such as the scale of CIOMS (Council for International Organizations of Medical Sciences). EXPERT OPINION The authors call for substantial improvements in data quality of herbal products and case characteristics and strongly recommend using the CIOMS scale to assess causality in suspected herbal hepatotoxicity.
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Affiliation(s)
- Rolf Teschke
- Academic Teaching Hospital of Goethe University of Frankfurt/Main, Department of Internal Medicine II, Klinikum Hanau, Leimenstrasse 20, D-63450 Hanau, Germany.
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Teschke R, Frenzel C, Glass X, Schulze J, Eickhoff A. Herbal hepatotoxicity: a critical review. Br J Clin Pharmacol 2013; 75:630-6. [PMID: 22831551 PMCID: PMC3575930 DOI: 10.1111/j.1365-2125.2012.04395.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Accepted: 07/19/2012] [Indexed: 12/12/2022] Open
Abstract
This review deals with herbal hepatotoxicity, identical to herb induced liver injury (HILI), and critically summarizes the pitfalls associated with the evaluation of assumed HILI cases. Analysis of the relevant publications reveals that several dozens of different herbs and herbal products have been implicated to cause toxic liver disease, but major quality issues limit the validity of causality attribution. In most of these reports, discussions around quality specifications regarding herbal products, case data presentations and causality assessment methods prevail. Though the production of herbal drugs is under regulatory surveillance and quality aspects are normally not a matter of concern, low quality of the less regulated herbal supplements may be a critical issue considering product batch variability, impurities, adulterants and herb misidentifications. Regarding case data presentation, essential diagnostic information is often lacking, as is the use of valid and liver specific causality assessment methods that also consider alternative diseases. At present, causality is best assessed by using the Council for International Organizations of Medical Sciences scale ( CIOMS) in its original or updated form, which should primarily be applied prospectively by the treating physician when evaluating a patient rather than retrospectively by regulatory agencies. To cope with these problems, a common quality approach by manufacturers, physicians and regulatory agencies should strive for the best quality. We propose steps for improvements with impact on future cases of liver injury by herbs, herbal drugs and herbal supplements.
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Affiliation(s)
- Rolf Teschke
- Department of Internal Medicine II, Division of Gastroenterology and Hepatology, Klinikum Hanau, Academic Teaching Hospital of the Medical Faculty of the Goethe University Frankfurt/Main, Frankfurt Main, Germany.
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Fritz H, Seely D, McGowan J, Skidmore B, Fernandes R, Kennedy DA, Cooley K, Wong R, Sagar S, Balneaves LG, Fergusson D. Black Cohosh and Breast Cancer. Integr Cancer Ther 2013; 13:12-29. [DOI: 10.1177/1534735413477191] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Background. Many women use black cohosh as a natural treatment for menopausal symptoms. However, controversy exists around safety in breast cancer, because of its purported estrogenic activity. We conducted a systematic review of black cohosh use in women with or at risk of breast cancer. Methods. We searched MEDLINE, Embase, the Cochrane Library, and AMED from inception to July 2012 and October 2012 for human interventional or observational data pertaining to the safety and efficacy of black cohosh in patients with or at risk of breast cancer, including an assessment of the effect of black cohosh on estrogen responsive tissues. Results. Of 450 records, we included 26 articles: 14 randomized controlled trials, 7 uncontrolled trials, and 5 observational studies.The evidence on efficacy for ho t flashes is divided, with some benefits seen when compared with baseline, but not when compared with placebo. Two observational studies found no association between black cohosh and risk of breast cancer, whereas 2 studies reported significant reductions in risk of primary breast cancer among postmenopausal women (adjusted odds ratio = 0.47, 95% confidence interval = 0.27-0.82), and risk of recurrence (adjusted hazard ratio = 0.75, 95% confidence interval = 0.63-0.89). Seventeen trials showed no significant impact on circulating hormone levels or proliferation in estrogen responsive tissues. Conclusions. Current evidence does not support an association between black cohosh and increased risk of breast cancer. There is a lack of evidence supporting the efficacy of black cohosh for reduction of hot flashes in breast cancer patients. Given conflicting but promising results, and apparent safety, further research is warranted.
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Affiliation(s)
- Heidi Fritz
- The Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
| | - Dugald Seely
- The Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Ottawa Integrative Cancer Center, Ottawa, Ontario, Canada
| | - Jessie McGowan
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Becky Skidmore
- The Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
| | | | - Deborah A. Kennedy
- The Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
- The University of Toronto, Toronto, Ontario, Canada
| | - Kieran Cooley
- The Canadian College of Naturopathic Medicine, Toronto, Ontario, Canada
- The University of Toronto, Toronto, Ontario, Canada
| | - Raimond Wong
- Juravinski Cancer Center, Hamilton, Ontario, Canada
- McMaster University, Hamilton, Ontario, Canada
| | - Stephen Sagar
- Juravinski Cancer Center, Hamilton, Ontario, Canada
- McMaster University, Hamilton, Ontario, Canada
| | | | - Dean Fergusson
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
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Bunchorntavakul C, Reddy KR. Review article: herbal and dietary supplement hepatotoxicity. Aliment Pharmacol Ther 2013; 37:3-17. [PMID: 23121117 DOI: 10.1111/apt.12109] [Citation(s) in RCA: 197] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2012] [Revised: 09/18/2012] [Accepted: 10/06/2012] [Indexed: 02/06/2023]
Abstract
BACKGROUND Herbal and dietary supplements are commonly used throughout the World. There is a tendency for underreporting their ingestion by patients and the magnitude of their use is underrecognised by Physicians. Herbal hepatotoxicity is not uncommonly encountered, but the precise incidence and manifestations have not been well characterised. AIMS To review the epidemiology, presentation and diagnosis of herbal hepatotoxicity. This review will mainly discuss single ingredients and complex mixtures of herbs marketed under a single label. METHODS A Medline search was undertaken to identify relevant literature using search terms including 'herbal', 'herbs', 'dietary supplement', 'liver injury', 'hepatitis' and 'hepatotoxicity'. Furthermore, we scanned the reference lists of the primary and review articles to identify publications not retrieved by electronic searches. RESULTS The incidence rates of herbal hepatotoxicity are largely unknown. The clinical presentation and severity can be highly variable, ranging from mild hepatitis to acute hepatic failure requiring transplantation. Scoring systems for the causality assessment of drug-induced liver injury may be helpful, but have not been validated for herbal hepatotoxicity. Hepatotoxicity features of commonly used herbal products, such as Ayurvedic and Chinese herbs, black cohosh, chaparral, germander, greater celandine, green tea, Herbalife, Hydroxycut, kava, pennyroyal, pyrrolizidine alkaloids, skullcap, and usnic acid, have been individually reviewed. Furthermore, clinically significant herb-drug interactions are also discussed. CONCLUSIONS A number of herbal medicinal products are associated with a spectrum of hepatotoxicity events. Advances in the understanding of the pathogenesis and the risks involved are needed to improve herbal medicine safety.
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Affiliation(s)
- C Bunchorntavakul
- Division of Gastroenterology and Hepatology, Department of Medicine, Rajavithi Hospital, College of Medicine, Rangsit University, Bangkok, Thailand
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Teschke R, Wolff A, Frenzel C, Schulze J, Eickhoff A. Herbal hepatotoxicity: a tabular compilation of reported cases. Liver Int 2012; 32:1543-56. [PMID: 22928722 DOI: 10.1111/j.1478-3231.2012.02864.x] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Accepted: 07/23/2012] [Indexed: 12/22/2022]
Abstract
BACKGROUND Herbal hepatotoxicity is a field that has rapidly grown over the last few years along with increased use of herbal products worldwide. AIMS To summarize the various facets of this disease, we undertook a literature search for herbs, herbal drugs and herbal supplements with reported cases of herbal hepatotoxicity. METHODS A selective literature search was performed to identify published case reports, spontaneous case reports, case series and review articles regarding herbal hepatotoxicity. RESULTS A total of 185 publications were identified and the results compiled. They show 60 different herbs, herbal drugs and herbal supplements with reported potential hepatotoxicity, additional information including synonyms of individual herbs, botanical names and cross references are provided. If known, details are presented for specific ingredients and chemicals in herbal products, and for references with authors that can be matched to each herbal product and to its effect on the liver. Based on stringent causality assessment methods and/or positive re-exposure tests, causality was highly probable or probable for Ayurvedic herbs, Chaparral, Chinese herbal mixture, Germander, Greater Celandine, green tea, few Herbalife products, Jin Bu Huan, Kava, Ma Huang, Mistletoe, Senna, Syo Saiko To and Venencapsan(®). In many other publications, however, causality was not properly evaluated by a liver-specific and for hepatotoxicity-validated causality assessment method such as the scale of CIOMS (Council for International Organizations of Medical Sciences). CONCLUSIONS This compilation presents details of herbal hepatotoxicity, assisting thereby clinical assessment of involved physicians in the future.
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Affiliation(s)
- Rolf Teschke
- Department of Internal Medicine II, Division of Gastroenterology and Hepatology, Klinikum Hanau, Academic Teaching Hospital of the Medical Faculty of the Goethe University, Frankfurt/Main, Germany.
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Rare statin hepatotoxicity: convincing evidence based on breakthrough case study. J Hepatol 2012; 57:699-700. [PMID: 22433604 DOI: 10.1016/j.jhep.2012.02.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Accepted: 02/28/2012] [Indexed: 12/04/2022]
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Initially purported hepatotoxicity by Pelargonium sidoides: the dilemma of pharmacovigilance and proposals for improvement. Ann Hepatol 2012. [DOI: 10.1016/s1665-2681(19)31464-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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Mahady G, Low Dog T, Sarma ND, Griffiths J, Giancaspro GI. Response to Teschke et al. Pharmacoepidemiol Drug Saf 2012. [PMID: 22407603 DOI: 10.1002/pds.3209] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Suspected Greater Celandine hepatotoxicity: liver-specific causality evaluation of published case reports from Europe. Eur J Gastroenterol Hepatol 2012; 24:270-80. [PMID: 22189691 DOI: 10.1097/meg.0b013e32834f993f] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND OBJECTIVES In 21 published case reports, the use of the herb Greater Celandine (GC) (Chelidonium majus L.) has been causally related to liver injury, but a variety of confounding variables were evident that might have offset causality. This study reanalyses causality levels in these cases with a liver-specific causality evaluation method. METHODS All 21 cases were submitted to the liver-specific, standardized, structured, quantitative and updated scale of the Council for International Organizations of Medical Sciences. This scale considers, among other items, latency period, course of alanine aminotransferase after treatment discontinuation, risk factors, comedication and alternative causes. RESULTS Using this method for assessment, causality for GC was highly probable in two and probable in six cases, with lower causality grading in the remaining 13 cases. In these patients, causality for GC was possible in 10 cases and excluded in three cases. On the basis of the eight cases with highly probable and probable causality gradings, GC hepatotoxicity represents an idiosyncratic reaction of the metabolic type, whereas immunologic or obligatory hepatotoxic features are lacking. In some cases, alternative diagnoses and poor data quality were confounding variables that reduced causality levels. CONCLUSION Confounding variables reduced causality levels for GC in reported cases of liver injury, but there is still striking evidence for herb-induced liver injury by GC with high causality gradings. GC hepatotoxicity is caused by an idiosyncratic reaction of the metabolic form, but there is uncertainty with respect to its culprit(s).
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Spontaneous reports of primarily suspected herbal hepatotoxicity by Pelargonium sidoides: was causality adequately ascertained? Regul Toxicol Pharmacol 2012; 63:1-9. [PMID: 22381150 DOI: 10.1016/j.yrtph.2012.02.009] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Revised: 02/11/2012] [Accepted: 02/13/2012] [Indexed: 02/06/2023]
Abstract
Spontaneous reports of primarily assumed hepatotoxicity in connection with the use of Pelargonium sidoides (PS) have been interpreted by the Drug Commission of the German Medical Association (DCGMA) as showing some hepatotoxic potential of PS used to treat common cold and other respiratory tract infections. Causality for PS was assessed using the liver specific, structured, quantitative, and updated scale of the Council for International Organizations of Medical Sciences (CIOMS). In none of the 15 cases was there a highly probable or probable causality for PS. Analysis revealed confounding factors such as numerous final diagnoses unrelated to PS and poor data quality in virtually all cases. In only a minority of the cases were data provided to consider even common other diseases of the liver. For instance, biliary tract imaging data were available in only 3 patients; data to exclude virus infections by hepatitis A-C were provided in 4 cases and by CMV and EBV in 1 case, whereas HSV and VZV virus infections remained unconsidered. Thus, convincing evidence is lacking that PS was a potential hepatotoxin in the analyzed cases.
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Teschke R, Glass X, Schulze J. Herbal hepatotoxicity by Greater Celandine (Chelidonium majus): causality assessment of 22 spontaneous reports. Regul Toxicol Pharmacol 2011; 61:282-91. [PMID: 21893153 DOI: 10.1016/j.yrtph.2011.08.008] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2011] [Revised: 08/15/2011] [Accepted: 08/19/2011] [Indexed: 12/31/2022]
Abstract
Toxic liver injury due to the herb Greater Celandine (GC) (Chelidonium majus L.) has been assumed in patients originating from various European countries and created concern. Based on regulatory and liver unspecific ad hoc causality assessments in 22 spontaneous cases of Germany, causality levels for GC were considered probable in 16 and possible in 6 cases. We now analyzed the data of these 22 cases regarding their causality levels employing the liver specific, standardized, structured and quantitative assessment method of the updated scale of CIOMS (Council for International Organizations of Medical Sciences). Causality for GC was found highly probable (n=2), probable (n=6), possible (n=10), unlikely (n=1), and excluded (n=3). Thus, causality could be upgraded in 2 cases to a highly probable causality level, but had to be down graded to excluded, unlikely, or possible causality levels in 3, 1, or 9 cases, respectively. GC hepatotoxicity shows a hepatocellular pattern of liver injury with female gender predominance. On average, age of the patients was 56.4 years, treatment 36.4 days, and latency period until first symptoms and jaundice 29.8 and 35.6 days, respectively. This analysis therefore provides further evidence for the existence of GC hepatotoxicity as a distinct form of herb induced liver injury, but due to poor data quality the causal association between GC use and liver injury is less strong than hitherto assumed. We propose replacement of the regulatory organ unspecific by a liver specific causality assessment method in cases of herb induced liver injury as well as stricter pharmacovigilance strategies towards improvements of data quality. Toxicological studies are now warranted to elucidate the mechanism(s) of human GC hepatotoxicity that represents a European issue.
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Affiliation(s)
- Rolf Teschke
- Department of Internal Medicine II, Division of Gastroenterology and Hepatology, Klinikum Hanau, Teaching Hospital of the Goethe University Frankfurt/Main, Germany.
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