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Alan Z, Özgüldü H, Erdal MS, Bucak AY, Üresin AY, Akalın E. Evaluation of clinical trials of the plants, which have ethnobotanical uses for skin disorders in Turkey: a review. CLINICAL PHYTOSCIENCE 2021. [DOI: 10.1186/s40816-021-00316-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Abstract
Background
Ethnobotanical studies investigating a large number of traditional herbs and uses have an important role in the discovery of new drugs. Nowadays, some of these traditional herbs are researched directly in the clinical trials. In this study, it is aimed to evaluate the 19 plant species that have been identified in the clinical trials among 300 plant species belonging to 79 families with traditional use for skin problems in Turkey.
Main body
Natural sources are very important to treat diseases for thousands of years. The ethnopharmacological research of natural products ranges from the collection of biogenic samples such as plants to preclinical and clinical studies with the aim of developing drug templates or new drugs. In the ethnopharmacological approach, it is aimed to reach the result based on the traditional and modern knowledge about natural resources. The biggest advantage of this approach is synthesizing new and old information. After the plant or natural compound is determined, other processes work similarly with conventional drugs.
Methods
Ethnobotanical papers, thesis and projects in Istanbul University Faculty of Pharmacy Department of Pharmaceutical Botany and databases (PubMed and Google Scholar) have been sought and results were synthesized.
Results
Most of the clinical uses of herbs have been seen similar to their traditional uses. On the other hand, there are some plants on which their clinical uses differ from the traditional uses such as Borago officinalis, Calendula officinalis or Euphorbia peplus. When the frequency of traditional uses of herbs are compared, Plantago species, Plantago major and Plantago lanceolata are the most used taxa in Turkey, secondly, Hypericum perforatum comes. However, Plantago species are not of much interest in clinical trials. It is seen that most of the plants in the clinical research are tried for wound healing occuring due to different origins such as cancer, surgery and injury.
Side effects were observed only during the application of Allium cepa, Cydonia oblonga and H. perforatum.
Conclusions
When clinical trials are evaluated in terms of efficacy and overall results, significant differences and effective results are seen in treatment groups given herbs in comparison with placebo or control groups.
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Quality Evaluation of the Clinical Trials for Natural Products Used in Cancer: An Evidence-Based Literature Review. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10227961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The amount of data regarding the use of herbs/herbal products in cancer clinical trials at times creates a great challenge for oncologists to prescribe or counsel patients. It urges critical evaluation of the quality of clinical trials. Herein, for the first time, the clinical trials for herbs used in cancer were critically evaluated on the basis of three widely used scales, i.e., Jadad, Delphi, and Cochrane scales. The literature was collected with the help of online databases, journals, libraries, and books using a number of specific keywords as mentioned in detail in forthcoming sections. A total of 73 clinical trials were extracted, evaluated, and scored for 14 herbs, according to the predefined criteria mentioned below. A major deficiency of “non-blinding of clinical trials” was observed. The principal component analysis revealed four components (PC1–PC4) with a total variability of 68.21%, wherein the highest percentage variability was observed for PC1 loaded with “non-blinding of the clinical trials, no concealment of the treatment allocation, non-blindness of the patient and care provider”, which accounted for 30.81% of the total variability. The next major variability of 14.70% was observed for PC2 loaded with “non-randomization of the studies, non-blinding of the outcome assessors, no proper drop-out procedures, and lack of information regarding baseline characteristics for the groups”. Pearson’s correlation further confirmed a similar correlation pattern for the mentioned deficiencies (p = 0.05). An in-house grading scale was developed, showing a very small portion (16.44%), i.e., 12/73 studies with a good quality, whereas the majority (57.54%) of the studies, i.e., 42/73, were found to be of poor quality. The rules and regulations governing the quality of clinical trials needs to be more stringent and updated for the natural products/herbs used in cancer clinical trials.
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Uyar A, Abdulrahman NT. A histopathological, immunohistochemical and biochemical investigation of the antidiabetic effects of the Pistacia terebinthus in diabetic rats. Biotech Histochem 2020; 95:92-104. [PMID: 32013588 DOI: 10.1080/10520295.2019.1612092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
We investigated the antidiabetic activity of Pistacia terebinthus (PT) extracts in streptozotocin (STZ) induced diabetic rats. We used 40 Wistar albino male rats divided into five groups: control (C), diabetes (DM), diabetes + acarbose (DM + AC), diabetes + PT (DM + PT) and PT. DM was established by intraperitoneal injection of STZ. Immunohistochemistry revealed that STZ reduced insulin immunoreactivity in the pancreas of the diabetic rats. To the contrary, insulin immunoreactivity in the pancreatic β cells of PT treated diabetic rats was increased significantly. Decreased levels of blood glucose, aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), lactate dehydrogenase (LDH), glucose, total triglyceride (TG), total cholesterol (TC), high density lipoprotein (HDL) and low density lipoprotein (LDL) were found in the PT supplemented diabetic group. Also, malondialdehyde (MDA) and antioxidant defense system enzyme levels were normalized in the DM + PT group. PT exhibited a protective effect on liver, kidney and pancreas that had been damaged by STZ induced DM.
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Affiliation(s)
- A Uyar
- Department of Pathology, Veterinary Faculty, Mustafa Kemal University, Hatay, Turkey
| | - N T Abdulrahman
- Department of Pathology, Veterinary Faculty, Yuzuncu Yil University, Van, Turkey
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Peng Y, Li Q, Zhang J, Shen W, Zhang X, Sun C, Cui H. Update review of skin adverse events during treatment of lung cancer and colorectal carcinoma with epidermal growth receptor factor inhibitors. Biosci Trends 2018; 12:537-552. [PMID: 30555112 DOI: 10.5582/bst.2018.01246] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The past decades have witnessed a rapid increase in the use of molecularly targeted therapies. One class of agents includes the epidermal growth factor receptor inhibitors (EGFRIs), which afford patients longer progression-free survival (PFS) times, especially among non-small cell lung cancer (NSCLC) and metastatic colorectal carcinoma (mCRC). Certain adverse effects, particularly skin toxicity, are mainly manifested as rash, xerosis, pruritus, nails changes, hair changes and mucositis. Previous studies reported the adverse events occurred based on the cutaneous inflammation reaction. Treatment recommended glucocorticoids and antibiotics. It is suggested that skin toxicity is an important issue because it usually affects patients' quality of life (QoL) and still causes dose reduction or discontinuation of targeted therapies. For these reasons, more and more oncologists and dermatologists recognize the importance of recognition and management of skin toxicities with the expansion in availability of EGFRIs. In this review, we conducted a systematic review of recent data to examine the types and frequencies of dermatologic toxicities associated with anti-epidermal growth factor receptor (EGFR) therapies in NSCLC and mCRC. In addition, we would like to explore the management and treatment options currently used by clinicians based on the possible mechanism.
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Affiliation(s)
- Yanmei Peng
- Beijing University of Chinese Medicine, China-Japan Friendship Hospital
| | - Qiang Li
- Beijing University of Chinese Medicine, China-Japan Friendship Hospital
| | - Jingyi Zhang
- Beijing University of Chinese Medicine, China-Japan Friendship Hospital
| | - Wen Shen
- Beijing University of Chinese Medicine, China-Japan Friendship Hospital
| | - Xu Zhang
- Beijing University of Chinese Medicine, China-Japan Friendship Hospital
| | - Chenyao Sun
- Beijing University of Chinese Medicine, China-Japan Friendship Hospital
| | - Huijuan Cui
- Department of Integrative Oncology, China-Japan Friendship Hospital
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Dermatologic Toxicity Occurring During Anti-EGFR Monoclonal Inhibitor Therapy in Patients With Metastatic Colorectal Cancer: A Systematic Review. Clin Colorectal Cancer 2017; 17:85-96. [PMID: 29576427 PMCID: PMC6773267 DOI: 10.1016/j.clcc.2017.12.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 11/13/2017] [Accepted: 12/07/2017] [Indexed: 12/22/2022]
Abstract
Monoclonal antibody inhibitors of the epidermal growth factor receptor (EGFR) have been shown to improve outcomes for patients with metastatic colorectal cancer (mCRC) without RAS gene mutations. However, treatment with anti-EGFR agents can be associated with toxicities of the skin, nails, hair, and eyes. Because these dermatologic toxicities can result in treatment discontinuation and affect patient quality of life, their management is an important focus when administering anti-EGFR monoclonal antibodies. The present systematic review describes the current data reporting the nature and incidence of, and management and treatment options for, dermatologic toxicities occurring during anti-EGFR treatment of mCRC. A search of the National Library of Medicine PubMed database from January 1, 2009, to August 18, 2016, identified relevant reports discussing dermatologic toxicity management among patients with mCRC receiving anti-EGFR therapy. The studies were grouped by type and rated by level of evidence using the GRADE approach developed by the Agency for Healthcare Research and Quality. Overall, 269 reports were reviewed (nonrandomized trials, n = 120; randomized trials, n = 31; retrospective studies, n = 15; reviews, n = 39). Dermatologic toxicity of any grade occurs in most patients who receive anti-EGFR therapy; approximately 10% to 20% of patients experienced grade 3/4 toxicity. The most common dermatologic toxicities include papulopustular/acneiform rash, xerosis, and pruritus; however, nail changes, hair abnormalities, and ocular conditions also occur. Guidance for managing these toxicities includes the use of inexpensive emollient ointments and moisturizers, avoidance of sun exposure, avoidance of irritants, and the use of short showers. Several studies also found that preemptive treatment was more effective than reactive treatment at limiting the incidence and severity of skin toxicity. With appropriate treatment, the dermatologic toxicities associated with anti-EGFR monoclonal antibody therapy can be managed, minimizing patient discomfort and the need for therapy interruption and/or discontinuation. Additionally, preemptive treatment can reduce dermatologic toxicity severity, ultimately yielding better quality of life.
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Piras A, Marzouki H, Maxia A, Marengo A, Porcedda S, Falconieri D, Gonçalves MJ, Cavaleiro C, Salgueiro L. Chemical characterisation and biological activity of leaf essential oils obtained from Pistacia terebinthus growing wild in Tunisia and Sardinia Island. Nat Prod Res 2017; 31:2684-2689. [PMID: 28278668 DOI: 10.1080/14786419.2017.1289204] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
In the present work the chemical compositions, measured by GC and GC-MS, of the essential oils obtained by hydrodistillation from leaves of Pistacia terebinthus collected in Bizerte (Tunisia) and Baunei (Italy) are reported. Both essential oils possessed high content of monoterpene hydrocarbons (86.3% and 90.9%, respectively), being α-pinene (62.4 vs. 35.0)%, camphene (3.0 vs. 2.4)%, β-pinene (12.1 vs. 4.5)%, terpinolene (1.7 vs. 35.2)% and β-phellandrene (3.8 vs. 4.5)% the main components. The Tunisian essential oil exhibited higher antifungal activity than the Italian one. Cryptococcus neoformans and the majority of dermatophyte strains showed more sensitivity to the Tunisian oil, when compared to Candida strains, in particular Trichophyton rubrum, Microsporum canis and Epidermophyton floccosum, with MIC and MLC values in the range (0.16-0.32) μL/mL. The results obtained support the use of the oil from Tunisia for the treatment of dermatophytosis.
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Affiliation(s)
- Alessandra Piras
- a Department of Chemical and Geological Science , University of Cagliari, Cittadella Universitaria , Monserrato , Italy
| | - Hanen Marzouki
- b Laboratory of Transmissible Diseases and Biologically Active Substances, Faculty of Pharmacy , University of Monastir , Monastir , Tunisia
| | - Andrea Maxia
- c Department of Life and Environmental Sciences , University of Cagliari , Cagliari , Italy
| | - Arianna Marengo
- c Department of Life and Environmental Sciences , University of Cagliari , Cagliari , Italy
| | - Silvia Porcedda
- a Department of Chemical and Geological Science , University of Cagliari, Cittadella Universitaria , Monserrato , Italy
| | - Danilo Falconieri
- c Department of Life and Environmental Sciences , University of Cagliari , Cagliari , Italy.,d State Institute of Higher Education "Michele Giua" , Cagliari , Italy
| | | | - Carlos Cavaleiro
- e CNC.IBILI, Faculty of Pharmacy , University of Coimbra , Coimbra , Portugal
| | - Ligia Salgueiro
- e CNC.IBILI, Faculty of Pharmacy , University of Coimbra , Coimbra , Portugal
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Jaka A, Gutiérrez-Rivera A, López-Pestaña A, del Alcázar E, Zubizarreta J, Vildosola S, Arregui M, Sarasqueta C, Lobo C, Tuneu A. Predictors of Tumor Response to Cetuximab and Panitumumab in 116 Patients and a Review of Approaches to Managing Skin Toxicity. ACTAS DERMO-SIFILIOGRAFICAS 2015. [DOI: 10.1016/j.adengl.2015.05.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Predictors of Tumor Response to Cetuximab and Panitumumab in 116 Patients and a Review of Approaches to Managing Skin Toxicity. ACTAS DERMO-SIFILIOGRAFICAS 2015; 106:483-92. [PMID: 25798804 DOI: 10.1016/j.ad.2015.01.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Revised: 01/22/2015] [Accepted: 01/25/2015] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION AND OBJECTIVES Cetuximab and panitumumab are monoclonal antibodies that target the epidermal growth factor receptor (EGFR) in the treatment of metastatic colorectal cancer. Most patients develop a papulopustular rash, which may predict tumor response. We studied whether the other adverse cutaneous effects associated with these monoclonal antibodies are also clinical predictors of response. We also reviewed publications describing approaches to treating the papulopustular rash since no evidence-based guidelines have yet been published. MATERIAL AND METHODS We performed a retrospective study of 116 patients with metastatic colorectal cancer receiving anti-EGRF therapy with cetuximab or panitumumab at Hospital Universitario Donostia. RESULTS In total, 81.9% of the patients developed a papulopustular rash. Patients who received the most cycles of treatment with the EGFR inhibitor were at the highest risk of developing the rash, and these patients also had the most severe rash reactions (P=.03). All of the patients who exhibited a complete tumor response had the rash, and the incidence of rash was lower in patients with poor tumor response (P=.03). We also observed an association between tumor response and xerosis (53.4% of the patients who developed xerosis also exhibited tumor response, P=.002). The papulopustular rash was managed according to an algorithm developed by our department. CONCLUSIONS Severe papulopustular rash and xerosis may be clinical predictors of good response to anti-EGFR therapy. Patients who develop a papulopustular rash should be treated promptly because suboptimal treatment of this and other adverse effects can lead to delays in taking the prescribed anti-EGFR dose or to interruption of therapy.
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