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1.
J Ethnopharmacol ; 285: 114813, 2022 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-34752898

RESUMO

INTRODUCTION: The ethnobotanical survey of the South-western Satpuda ranges has continued for decades. However, very few disease-specific surveys and their pharmacological validation have been published. The present study aimed to identify, document, and pharmacologically validate the tribal knowledge on anti-inflammatory medicinal plants. METHODS: The field survey was conducted over a year from July 2015 to June 2016, scattered in the South-Western region of Satpuda Ranges. Documentation and identification of the medicinal herbs used often in the treatment of inflammatory conditions. Two plants, namely Eulophia herbacea Lindl., and Grewia flavescens A. Juss. were commonly used for inflammatory conditions. Phytopharmacological validation was done using carrageenan induced inflammation and CFA-induced arthritis. RESULTS: The current investigation identified 32 plants from 22 different families as anti-inflammatory plants. G. flavescens exhibited substantial antiarthritic action in complete Freund's adjuvant-induced arthritis in rats, and E. herbacea showed powerful anti-inflammatory activity in carrageenan-induced rat paw edema model. This activity might be attributed to the presence of gallic acid, quercetin, ß-sitosterol and lupeol. CONCLUSION: The research reveals that selected plants had anti-inflammatory properties in both acute and chronic inflammation. Further studies to highlight the exact mechanism of action of these plants are warranted.


Assuntos
Anti-Inflamatórios , Inflamação/tratamento farmacológico , Preparações de Plantas , Animais , Anti-Inflamatórios/classificação , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/uso terapêutico , Artrite Experimental/tratamento farmacológico , Artrite Experimental/imunologia , Modelos Animais de Doenças , Humanos , Índia , Fitoterapia/métodos , Fitoterapia/estatística & dados numéricos , Preparações de Plantas/classificação , Preparações de Plantas/farmacologia , Preparações de Plantas/uso terapêutico , Plantas Medicinais/classificação , Ratos , Reprodutibilidade dos Testes
2.
Parasitology ; 148(6): 672-684, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33536098

RESUMO

Amoebiasis has emerged as a major health problem worldwide. It is endemic in the present scenario is different and sub-tropical regions especially in Asia, Latin America and also in Africa. Causative of amoebiasis is a protozoan known as Entamoeba histolytica. We screened all the databases such as PubMed, Science Direct, Medline and Google Scholar by using the keywords 'anti-Entamoeba histolytica activity of medicinal plants, anti-Entamoeba histolytica activity of herbal drugs, the anti-amoebic activity of natural drugs'. In the present study, we found 7861 articles, where all articles were screened for bias analysis and included 32 full-matching articles in total reporting the use of medicinal plants as a remedy for amoebiasis. Through these articles, we found 42 herbs having anti-amoebic activity. In bias analysis, we also found four articles under high bias risk. In our study, seven medicinal plants were concluded to possess the most potent anti-amoebic activity based on their IC50 value, which was less than 1 µg mL−1. On bias analysis, we found four articles with high bias risk, hence these studies can be repeated for better results.


Assuntos
Antiprotozoários/farmacologia , Entamoeba histolytica/efeitos dos fármacos , Preparações de Plantas/farmacologia , Plantas Medicinais/química , Antiprotozoários/classificação , Antiprotozoários/isolamento & purificação , Concentração Inibidora 50 , Preparações de Plantas/classificação , Preparações de Plantas/isolamento & purificação
3.
J Ethnopharmacol ; 270: 113841, 2021 Apr 24.
Artigo em Inglês | MEDLINE | ID: mdl-33460757

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Obesity is one of the growing public health problems in Turkey, as well as all over the world, threatening people of almost all ages. Turkey has a large potential for research on this topic due to owning broad ethnomedicinal experience and the richest flora (34% endemic) of Europe and the Middle East. Herbs that they have utilized for centuries to treat and prevent obesity can provide useful options to overcome this issue. AIM OF THE STUDY: This survey was carried out to disclose the inventory of plant taxa that the people of Turkey have been using for a few centuries in treating obesity without any side effects or complications, and to compare them with experimental studies in the literature. MATERIALS AND METHODS: The research was achieved in two phases on the matter above by using electronic databases, such as Web of Science, ScienceDirect, Scopus, ProQuest, Medline, Cochrane Library, EBSCO, HighWire Press, PubMed and Google Scholar. Both results were shown in separate tables as well as the regional comparative analysis. RESULTS: 117 herbal taxa belonging to 45 families were identified among the selected 74 studies conducted in the seven regions of Turkey. However, only 49 (41.9%) of them were found to be subjected to worldwide in vitro and in vivo research conducted on anti-obesity activity. Quercetin (9.1%), gallic acid (6.1%) and ferulic acid and epigallocatechin gallate (4.5%) have been recorded as the most common active ingredients among the 66 active substances identified. Prunus avium (32.4%) and Rosmarinus officinalis (25.7%) were identified as the most common plants used in Turkey. Also, Portulaca oleracea and Brassica oleracea emerged as the most investigated taxa in the literature. CONCLUSION: This is the first country-wide ethnomedical review conducted on obesity treatment with plants in Turkey. Evaluating the results of the experimental anti-obesity research conducted in the recent years in the literature, it was determined that forty-nine plants were verified. This clearly shows that these herbs have a high potential to be a pharmacological resource. Moreover, 68 (41.9%) taxa, which haven't been investigated yet, are likely to be a promising resource for national and international pharmacological researchers in terms of new natural medicine searches.


Assuntos
Fármacos Antiobesidade/uso terapêutico , Medicina Tradicional/métodos , Obesidade/prevenção & controle , Preparações de Plantas/uso terapêutico , Plantas Medicinais/química , Humanos , Preparações de Plantas/química , Preparações de Plantas/classificação , Turquia
4.
Oxid Med Cell Longev ; 2020: 6636766, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33381266

RESUMO

Hypertension is a dominant risk factor for the development of cardiovascular, kidney, and eye diseases. In Africa, it increasingly leads to hospitalisation and a strain on the public health system. However, rather than modern medicine, African traditional healers are the first choice for most South Africans. Therefore, this study is aimed at gathering information on herbal remedies traditionally used for the treatment of high blood pressure in Vhavenda, South Africa, and comparing this information with reports in the literature regarding plants used to manage high blood pressure. An ethnobotanical survey was carried out in Vhembe district and its environs with 53 herbalists and indigenous people aged between 36 and 66 years from January to October 2019 using a semistructured questionnaire. The plants were collected with each respondent; they were authenticated and kept in herbarium. A total of 51 different plants were mentioned as being most commonly used for hypertension treatment. Of these, 44 plants were identified, with those from the Fabaceae family followed by plants from the Celastraceae family being commonly mentioned. Of these, the Elaeodendron transvaalense, Tabernaemontana elegans, Elephantorrhiza elephantina, and Aloe vossii were commonly cited species. According to the literature data, most of the identified plants are yet to be scientifically investigated for the treatment of hypertension, whereas only preliminary investigations have been carried out on other plants, suggesting that these preliminary investigations may have highlight promising antihypertensive activities in vitro that are indicative of their potential as antihypertensive drugs. Therefore, there is a need to scientifically investigate the antihypertensive potentials of these plants as a potential source of antihypertensive treatment and compounds.


Assuntos
Anti-Hipertensivos/uso terapêutico , Medicinas Tradicionais Africanas/métodos , Preparações de Plantas/uso terapêutico , Adulto , Idoso , Anti-Hipertensivos/isolamento & purificação , Etnobotânica/métodos , Etnofarmacologia/métodos , Feminino , Humanos , Hipertensão/tratamento farmacológico , Hipertensão/epidemiologia , Hipertensão/etnologia , Masculino , Pessoa de Meia-Idade , Fitoterapia/métodos , Fitoterapia/estatística & dados numéricos , Preparações de Plantas/classificação , Plantas Medicinais/classificação , Plantas Medicinais/fisiologia , África do Sul/epidemiologia , Inquéritos e Questionários
5.
Sci Rep ; 10(1): 18259, 2020 10 26.
Artigo em Inglês | MEDLINE | ID: mdl-33106579

RESUMO

Traditional medicines are widely traded across the globe and have received considerable attention in the recent past, with expectations of heightened demand in the future. However, there are increasing global concerns over admixture, which can affect the quality, safety, and efficacy of herbal medicinal products. In this study, we aimed to use DNA metabarcoding to identify 39 Thai herbal products on the Thai National List of Essential Medicines (NLEM) and assess species composition and admixture. Among the products, 24 samples were in-house-prepared formulations, and 15 samples were registered formulations. In our study, DNA metabarcoding analysis using ITS2 and rbcL barcode regions were employed to identify herbal ingredients mentioned in the products. The nuclear region, ITS2, was able to identify herbal ingredients in the products at the genus- and family-levels in 55% and 63% of cases, respectively. The chloroplast gene, rbcL, enabled genus- and family-level identifications in 58% and 73% of cases, respectively. In addition, plant species were detected in larger numbers (Family identified, absolute %) in registered herbal products than in in-house-prepared formulations. The level of fidelity increases concerns about the reliability of the products. This study highlights that DNA metabarcoding is a useful analytical tool when combined with advanced chemical techniques for the identification of plant species in highly processed, multi-ingredient herbal products.


Assuntos
Código de Barras de DNA Taxonômico/métodos , DNA de Plantas/genética , Medicina Herbária/normas , Preparações de Plantas/classificação , Plantas Medicinais/genética , DNA de Plantas/análise , Preparações de Plantas/isolamento & purificação , Preparações de Plantas/metabolismo , Plantas Medicinais/classificação , Reprodutibilidade dos Testes , Tailândia
6.
Pharmacol Res ; 156: 104797, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32278044

RESUMO

Chronic pain is highly prevalent and poorly controlled, of which the accurate underlying mechanisms need be further elucidated. Herbal drugs have been widely used for controlling various pain disorders. The systematic integration of pain herbal data resources might be promising to help investigate the molecular mechanisms of pain phenotypes. Here, we integrated large-scale bibliographic literatures and well-established data sources to obtain high-quality pain relevant herbal data (i.e. 426 pain related herbs with their targets). We used machine learning method to identify three distinct herb categories with their specific indications of symptoms, targets and enriched pathways, which were characterized by the efficacy of treatment to the chronic cough related neuropathic pain, the reproduction and autoimmune related pain, and the cancer pain, respectively. We further detected the novel pathophysiological mechanisms of the pain subtypes by network medicine approach to evaluate the interactions between herb targets and the pain disease modules. This work increased the understanding of the underlying molecular mechanisms of pain subtypes that herbal drugs are participating and with the ultimate aim of developing novel personalized drugs for pain disorders.


Assuntos
Analgésicos/uso terapêutico , Dor Crônica/tratamento farmacológico , Aprendizado de Máquina , Limiar da Dor/efeitos dos fármacos , Preparações de Plantas/uso terapêutico , Biologia de Sistemas , Integração de Sistemas , Analgésicos/química , Analgésicos/classificação , Animais , Dor Crônica/metabolismo , Dor Crônica/fisiopatologia , Bases de Dados Factuais , Humanos , Estrutura Molecular , Terapia de Alvo Molecular , Farmacopeias como Assunto , Preparações de Plantas/química , Preparações de Plantas/classificação , Mapas de Interação de Proteínas , Transdução de Sinais , Relação Estrutura-Atividade
7.
J Pharm Pharmacol ; 71(1): 4-14, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29034955

RESUMO

OBJECTIVES: To review which names are used to refer to Hypericum perforatum L. in health regulation and medicinal plant references, and the potential for ambiguity or imprecision. KEY FINDINGS: Structured searches of Kew's Medicinal Plant Names Services Resource, supplemented with other online bibliographic resources, found that the scientific name Hypericum perforatum L. is used consistently in the literature, but variation between subspecies is rarely considered by researchers. Research is still published using only the common name 'St John's wort' despite it being imprecise; at least 80 other common names are also used for this plant in multiple languages. SUMMARY: Ambiguous and alternative plant names can lead to ineffective regulation, misinterpretation of literature, substitution of raw material or the failure to locate all published research. Kew's Medicinal Plant Names Services (MPNS) maps all names used for each plant in medicinal plant references onto current taxonomy, thereby providing for disambiguation and comprehensive access to the regulations and references that cite that plant, regardless of the name used. MPNS also supplies the controlled vocabulary for plant names now required for compliance with a new standard (Identification of Medicinal Products, IDMP) adopted by medicines regulators worldwide.


Assuntos
Hypericum/química , Preparações de Plantas/química , Terminologia como Assunto , Animais , Humanos , Hypericum/classificação , Fitoterapia/métodos , Preparações de Plantas/classificação
8.
Clin Pharmacol Ther ; 104(3): 435-445, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29947417

RESUMO

Several Cinnamomum species' barks are generally labeled as cinnamon, although only Cinnamomum verum carries the common name of true cinnamon. Cassia, a common name for a related species, is rarely used on labels; instead, various cassia types may also be labeled "cinnamon." Confusion of true cinnamon and cassia spices in foods generally does not present a risk to health, except possibly at the highest intake levels. However, clinical studies with Cinnamomum investigational products have been published that inadequately describe or lack botanical identification information. The results of such studies are confounded by an inability to determine which species was responsible for the observed effects. Due to differences in the quality and composition of various Cinnamomum species, safety and efficacy data are not generalizable or transferable. Pharmacopeial monographs for characterizing the identity, composition, purity, quality, and strength of Cinnamomum investigational products should be applied to remove the ambiguity of cinnamon.


Assuntos
Cinnamomum zeylanicum/classificação , Ensaios Clínicos como Assunto/métodos , Medicina Baseada em Evidências/métodos , Fitoterapia/classificação , Preparações de Plantas/classificação , Projetos de Pesquisa , Terminologia como Assunto , Cinnamomum zeylanicum/efeitos adversos , Ensaios Clínicos como Assunto/normas , Comércio , Consenso , Qualidade de Produtos para o Consumidor , Custos de Medicamentos , Medicina Baseada em Evidências/normas , Humanos , Segurança do Paciente , Fitoterapia/efeitos adversos , Fitoterapia/economia , Fitoterapia/normas , Preparações de Plantas/efeitos adversos , Preparações de Plantas/economia , Preparações de Plantas/normas , Projetos de Pesquisa/normas , Especificidade da Espécie
9.
Clin Pharmacol Ther ; 104(3): 470-483, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29882958

RESUMO

Botanical dietary supplements (BDS) are complex mixtures of phytochemicals exhibiting complex pharmacology and posing complex research challenges. For 25 years, clinical pharmacologists researching BDS have confronted a litany of issues unlike those encountered with conventional medications. Foundational to these concerns is the Dietary Supplement Health and Education Act of 1994, which exempted BDS from premarket safety and efficacy trials. In the ensuing period, safety concerns regarding multi-ingredient products formulated as "proprietary blends" and herb-drug interactions have garnered significant attention. Idiosyncrasies unique to BDS can affect the outcome and interpretation of in vitro and in vivo studies, and although "omics" approaches hold promise in uncovering BDS efficacy mechanisms, purposeful adulteration threatens their safety. Despite a quarter century of public use, healthcare professionals still know little about BDS, thus it falls to industry, government, and academia to join forces in promoting a new paradigm for BDS research and product development.


Assuntos
Suplementos Nutricionais/efeitos adversos , Fitoterapia/efeitos adversos , Preparações de Plantas/efeitos adversos , Plantas Medicinais/efeitos adversos , Animais , Qualidade de Produtos para o Consumidor , Suplementos Nutricionais/classificação , Suplementos Nutricionais/história , Suplementos Nutricionais/normas , Contaminação de Medicamentos , Interações Ervas-Drogas , História do Século XX , História do Século XXI , Humanos , Segurança do Paciente , Fitoterapia/classificação , Fitoterapia/história , Fitoterapia/normas , Preparações de Plantas/classificação , Preparações de Plantas/história , Preparações de Plantas/normas , Plantas Medicinais/classificação , Controle de Qualidade , Medição de Risco , Terminologia como Assunto
10.
Clin Pharmacol Ther ; 104(3): 458-469, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29920648

RESUMO

The use of botanicals, often in the form of multi-ingredient herbal dietary supplements (HDS), has grown tremendously in the past three decades despite their unproven efficacy. This is paralleled by an increase in dietary supplement-related health complications, notably hepatotoxicity. This article reviews the demographics and motivations of dietary supplement (DS) consumers and the regulatory framework for DS in the US and other developed countries. It examines in detail three groups of multi-ingredient HDS associated with hepatotoxicity: OxyElite Pro (two formulations), green tea extract-based DS, and "designer anabolic steroids." These examples illustrate the difficulties in identifying and adjudicating causality of suspect compound(s) of multi-ingredient HDS-associated liver injury in the clinical setting. The article outlines future directions for further study of HDS-associated hepatotoxicity as well as measures to safeguard the consumer against it.


Assuntos
Doença Hepática Induzida por Substâncias e Drogas/epidemiologia , Suplementos Nutricionais/efeitos adversos , Fígado/efeitos dos fármacos , Fitoterapia/efeitos adversos , Preparações de Plantas/efeitos adversos , Plantas Medicinais/efeitos adversos , Sistemas de Notificação de Reações Adversas a Medicamentos , Animais , Doença Hepática Induzida por Substâncias e Drogas/diagnóstico , Doença Hepática Induzida por Substâncias e Drogas/patologia , Doença Hepática Induzida por Substâncias e Drogas/terapia , Qualidade de Produtos para o Consumidor , Suplementos Nutricionais/classificação , Humanos , Fígado/metabolismo , Fígado/patologia , Segurança do Paciente , Farmacovigilância , Fitoterapia/classificação , Preparações de Plantas/classificação , Plantas Medicinais/classificação , Prognóstico , Medição de Risco , Fatores de Risco , Terminologia como Assunto , Testes de Toxicidade
11.
J Ethnopharmacol ; 219: 319-336, 2018 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-29501844

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: The World Health Organization (WHO) recognizes the potential of plants used in secular traditional medicine and considers this an important source of evidence to assess their effectiveness and safety. Brazil is rich in biodiversity and traditional uses based on the Amerindian culture. However, many processes started with the arrival of the Portuguese in the year 1500. The successive economic cycles, for example, led to destruction of native vegetation and an intense cultural erosion. As a consequence, the information about the use of plants in the past centuries are dispersed and without interpretation. In this study a methodology to evidence the traditionality of Brazilian plants was demonstrated using data about barbatimão barks (Stryphnodendron adstringens (Mart.) Coville - Fabaceae) and Copaiba oleoresin (Copaifera spp. - Fabaceae) in wound healing, was established. MATERIAL AND METHODS: Data about use of the plants were recovered from bibliography published between 1576 and 2011. The books (101) were classified using weights, considering the date of publication and the source of Information. Older books that describe primary information received weight 10, while books written more recently and with secondary information received weight 0.4. A score for each category of medicinal use was calculated based on the books weights and the frequency of citation. A review about the current use of both plants was also performed from ethnobotanical studies published in journals. RESULTS AND DISCUSSION: The traditional secular use of barks of barbatimão and oleoresin of copaiba to treat wounds was confirmed based on the historic bibliographic research. The most frequent use of barbatimão in a timeline of 500 years of Brazil's history, was as astringent, whereas for copaíba was as healing of skin and mucosal lesions. The continuous and current use of these plants to treat wounds, confirmed by recent ethnobotanical studies, is an indicative of the resilience of these remedies and their effectiveness. CONCLUSION: The use of preparations containing barbatimão barks and copaiba oleoresin can be considered effective in the treatment of wounds. Nonetheless, it is necessary to improve the quality of the formulas as established by WHO.


Assuntos
Fabaceae/classificação , Medicina Tradicional/métodos , Casca de Planta , Preparações de Plantas/classificação , Obras Médicas de Referência , Cicatrização/efeitos dos fármacos , Analgésicos/classificação , Analgésicos/farmacologia , Analgésicos/uso terapêutico , Anti-Inflamatórios/classificação , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/uso terapêutico , Adstringentes/classificação , Adstringentes/farmacologia , Adstringentes/uso terapêutico , Brasil/etnologia , Humanos , Casca de Planta/classificação , Preparações de Plantas/farmacologia , Preparações de Plantas/uso terapêutico , Plantas Medicinais/classificação , Resinas Vegetais/classificação , Resinas Vegetais/farmacologia , Resinas Vegetais/uso terapêutico
12.
J Evid Based Complementary Altern Med ; 22(4): 805-815, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-29228818

RESUMO

The aim of the study was to evaluate the biological activities and safety of commercial herbal concoctions manufactured in Ga Maja (Limpopo province). Microbial contamination was evaluated by spread-plating the concoctions on agar plates. The VITEK 2 instrument was used for identification of the pure cultures. Nutritional content of the concoctions was determined. Thin layer chromatography was used to analyze the chemical constituents of the extracts. The microdilution assay and bioautography were used to evaluate antimicrobial activity against selected microorganisms. Sodium, potassium, and zinc were elements most abundant in the concoctions. Phytochemical screening revealed the presence of various phytoconstituents. Acetone extracts of Hypoxis hemerocallidea and Kirkia wilmsii extracts had antioxidant activity. The minimum inhibitory concentrations values against test bacteria ranged between 0.02 and 0.63 mg/mL. Further studies are required to isolate bioactive compounds and evaluate their cytotoxicity. Caution in the consumption of the herbal mixtures should be adhered to.


Assuntos
Compostos Fitoquímicos , Preparações de Plantas , Antibacterianos/análise , Antibacterianos/farmacologia , Antifúngicos/farmacologia , Antioxidantes/análise , Antioxidantes/farmacologia , Cromatografia em Camada Fina/métodos , Humanos , Compostos Fitoquímicos/análise , Compostos Fitoquímicos/farmacologia , Extratos Vegetais/análise , Extratos Vegetais/farmacologia , Preparações de Plantas/análise , Preparações de Plantas/classificação , Preparações de Plantas/farmacologia , África do Sul
13.
J Ethnopharmacol ; 195: 127-136, 2017 Jan 04.
Artigo em Inglês | MEDLINE | ID: mdl-27894972

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Herbal medicine is a concoction of numerous chemical ingredients, and it exhibits polypharmacological effects to act on multiple pharmacological targets, regulating different biological mechanisms and treating a variety of diseases. Thus, this complexity is impossible to deconvolute by the reductionist method of extracting one active ingredient acting on one biological target. AIM OF THE STUDY: To dissect the polypharmacological effects of herbal medicines and their underling pharmacological targets as well as their corresponding active ingredients. MATERIALS AND METHODS: We propose a system-biology strategy that combines omics and bioinformatical methodologies for exploring the polypharmacology of herbal mixtures. The myocardial ischemia model was induced by Ameroid constriction of the left anterior descending coronary in Ba-Ma miniature pigs. RNA-seq analysis was utilized to find the differential genes induced by myocardial ischemia in pigs treated with formula QSKL. A transcriptome-based inference method was used to find the landmark drugs with similar mechanisms to QSKL. RESULTS: Gene-level analysis of RNA-seq data in QSKL-treated cases versus control animals yields 279 differential genes. Transcriptome-based inference methods identified 80 landmark drugs that covered nearly all drug classes. Then, based on the landmark drugs, 155 potential pharmacological targets and 57 indications were identified for QSKL. CONCLUSION: Our results demonstrate the power of a combined approach for exploring the pharmacological target and chemical space of herbal medicines. We hope that our method could enhance our understanding of the molecular mechanisms of herbal systems and further accelerate the exploration of the value of traditional herbal medicine systems.


Assuntos
Fármacos Cardiovasculares/farmacologia , Descoberta de Drogas/métodos , Perfilação da Expressão Gênica/métodos , Medicina Herbária/métodos , Isquemia Miocárdica/tratamento farmacológico , Preparações de Plantas/farmacologia , Polifarmacologia , Biologia de Sistemas/métodos , Transcriptoma/efeitos dos fármacos , Animais , Fármacos Cardiovasculares/classificação , Modelos Animais de Doenças , Redes Reguladoras de Genes , Terapia de Alvo Molecular , Isquemia Miocárdica/genética , Isquemia Miocárdica/metabolismo , Preparações de Plantas/classificação , Mapas de Interação de Proteínas , Suínos , Porco Miniatura
14.
J Ethnopharmacol ; 188: 48-56, 2016 Jul 21.
Artigo em Inglês | MEDLINE | ID: mdl-27157629

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Although ritual plant use is now recognised both for its socio-cultural importance and for its contribution to nature conservation, its potential pharmacological effects remain overlooked. AIM OF THE STUDY: Our objective was to see whether ritual plant use could have ethnopharmacological relevance through practices that involve direct physical contact with the human body. We hypothesise that ritual practices reflect traditional knowledge on biological activities of plant species, even if plants are used in a symbolic way. MATERIALS AND METHODS: Data were collected in collaboration with traditional healers and ritual plant vendors and harvesters in Benin (West Africa) and Gabon (Central Africa). Both ritual and medicinal uses of plants were recorded. Voucher specimens were collected and identified. We documented different administration routes of ritual plants and selected those whose uses involved direct contact with the human body. Based on our quantitative market surveys and field inventories, we identified 24 commercially or otherwise culturally important species and compared their ritual uses with proven biological activity from the literature. RESULTS: We recorded 573 plant species with 667 ritual uses, of which ca. 75% (442 species and 499 uses) implied direct contact with the human body. The most common route of administration for ritual treatments was baths, followed by oral ingestion and skin rubbing. One third (186 species) of all ritual plants doubled as medicine for physical ailments. In contrast to previous research that explained the effectiveness of ritual plant use to be a matter of belief, our results hint at the potential medicinal properties of these plants. Ritual treatment of madness caused by evil spirits by the consumption of Rauvolfia vomitoria roots, for example, may be based on the species' proven anticonvulsant properties. DISCUSSION AND CONCLUSION: We discuss some of the possible implications of ritual plant use for public health and conclude by suggesting that ritual plant uses that do not involve contact with the human body may also be vehicles for the transmission of traditional medicinal knowledge.


Assuntos
Comportamento Ritualístico , Etnofarmacologia , Conhecimentos, Atitudes e Prática em Saúde , Medicinas Tradicionais Africanas , Preparações de Plantas/farmacologia , Plantas Medicinais/classificação , Benin , Características Culturais , Bases de Dados Factuais , Etnobotânica , Gabão , Conhecimentos, Atitudes e Prática em Saúde/etnologia , Humanos , Fitoterapia , Preparações de Plantas/administração & dosagem , Preparações de Plantas/classificação , Plantas Medicinais/química , Religião e Medicina
15.
J Ethnobiol Ethnomed ; 12: 14, 2016 Feb 24.
Artigo em Inglês | MEDLINE | ID: mdl-26912113

RESUMO

BACKGROUND: Indigenous biocultural knowledge is a vital part of Nepalese environmental management strategies; however, much of it may soon be lost given Nepal's rapidly changing socio-ecological climate. This is particularly true for knowledge surrounding parasitic and mycoheterotrophic plant species, which are well represented throughout the Central-Eastern Himalayas but lack a collated record. Our study addresses this disparity by analyzing parasitic and mycoheterotrophic plant species diversity in Nepal as well as the ethnobotanical knowledge that surrounds them. METHODS: Botanical texts, online databases, and herbarium records were reviewed to create an authoritative compendium of parasitic and mycoheterotrophic plant species native or naturalized to the Nepal Central-Eastern Himalaya. Semi-structured interviews were then conducted with 141 informants to better understand the biocultural context of these species, emphasizing ethnobotanical uses, in 12 districts of Central-Eastern Nepal. RESULTS: Nepal is a hotspot of botanical diversity, housing 15 families and 29 genera of plants that exhibit parasitic or mycoheterotrophic habit. Over 150 of the known 4500 parasitic plant species (~3 %) and 28 of the 160 mycoheterotrophic species (~18 %) are native or naturalized to Nepal; 13 of our surveyed parasitic species are endemic. Of all species documented, approximately 17 % of parasitic and 7 % of mycoheterotrophic plants have ethnobotanical uses as medicine (41 %), fodder (23 %), food (17 %), ritual objects (11 %), or material (8 %). CONCLUSIONS: Parasitic and mycoheterotrophic plant species exhibit high diversity in the Nepal Central-Eastern Himalaya and are the fodder for biocultural relationships that may help inform future environmental management projects in the region.


Assuntos
Conservação dos Recursos Naturais/métodos , Etnobotânica/métodos , Conhecimentos, Atitudes e Prática em Saúde , Medicina Tradicional/métodos , Preparações de Plantas/classificação , Plantas Medicinais/classificação , Inquéritos e Questionários , Clima , Humanos , Nepal , Fitoterapia/métodos
16.
Psychol Med ; 45(15): 3181-9, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26213314

RESUMO

BACKGROUND: Cannabis use is decreasing in England and Wales, while demand for cannabis treatment in addiction services continues to rise. This could be partly due to an increased availability of high-potency cannabis. METHOD: Adults residing in the UK were questioned about their drug use, including three types of cannabis (high potency: skunk; low potency: other grass, resin). Cannabis types were profiled and examined for possible associations between frequency of use and (i) cannabis dependence, (ii) cannabis-related concerns. RESULTS: Frequent use of high-potency cannabis predicted a greater severity of dependence [days of skunk use per month: b = 0.254, 95% confidence interval (CI) 0.161-0.357, p < 0.001] and this effect became stronger as age decreased (b = -0.006, 95% CI -0.010 to -0.002, p = 0.004). By contrast, use of low-potency cannabis was not associated with dependence (days of other grass use per month: b = 0.020, 95% CI -0.029 to 0.070, p = 0.436; days of resin use per month: b = 0.025, 95% CI -0.019 to 0.067, p = 0.245). Frequency of cannabis use (all types) did not predict severity of cannabis-related concerns. High-potency cannabis was clearly distinct from low-potency varieties by its marked effects on memory and paranoia. It also produced the best high, was preferred, and most available. CONCLUSIONS: High-potency cannabis use is associated with an increased severity of dependence, especially in young people. Its profile is strongly defined by negative effects (memory, paranoia), but also positive characteristics (best high, preferred type), which may be important when considering clinical or public health interventions focusing on cannabis potency.


Assuntos
Cannabis/efeitos adversos , Abuso de Maconha/epidemiologia , Preparações de Plantas/efeitos adversos , Adulto , Cannabis/classificação , Estudos Transversais , Feminino , Humanos , Masculino , Abuso de Maconha/classificação , Preparações de Plantas/classificação , Índice de Gravidade de Doença , Reino Unido/epidemiologia , Adulto Jovem
17.
Drug Saf ; 38(7): 611-20, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26076652

RESUMO

Pharmacovigilance of herbal medicines relies on the product label information regarding the ingredients and the adherence to good manufacturing practices along the commercialisation chain. Several studies have shown that substitution of plant species occurs in herbal medicines, and this in turn poses a challenge to herbal pharmacovigilance as adverse reactions might be due to adulterated or added ingredients. Authentication of constituents in herbal medicines using analytical chemistry methods can help detect contaminants and toxins, but are often limited or incapable of detecting the source of the contamination. Recent developments in molecular plant identification using DNA sequence data enable accurate identification of plant species from herbal medicines using defined DNA markers. Identification of multiple constituent species from compound herbal medicines using amplicon metabarcoding enables verification of labelled ingredients and detection of substituted, adulterated and added species. DNA barcoding is proving to be a powerful method to assess species composition in herbal medicines and has the potential to be used as a standard method in herbal pharmacovigilance research of adverse reactions to specific products.


Assuntos
Código de Barras de DNA Taxonômico , DNA de Plantas/classificação , DNA de Plantas/genética , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/etiologia , Farmacovigilância , Preparações de Plantas/efeitos adversos , Preparações de Plantas/classificação , Marcadores Genéticos , Sequenciamento de Nucleotídeos em Larga Escala , Humanos , Preparações de Plantas/normas , Análise de Sequência de DNA , Especificidade da Espécie
18.
Phytochem Anal ; 26(5): 367-73, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26047147

RESUMO

INTRODUCTION: Bauhinia forficata Link. is recognised by the Brazilian Health Ministry as a treatment of hypoglycemia and diabetes. Analytical methods are useful to assess the plant identity due the similarities found in plants from Bauhinia spp. HPLC-UV/PDA in combination with chemometric tools is an alternative widely used and suitable for authentication of plant material, however, the shifts of retention times for similar compounds in different samples is a problem. OBJECTIVE: To perform comparisons between the authentic medicinal plant (Bauhinia forficata Link.) and samples commercially available in drugstores claiming to be "Bauhinia spp. to treat diabetes" and to evaluate the performance of multivariate curve resolution - alternating least squares (MCR-ALS) associated to principal component analysis (PCA) when compared to pure PCA. METHODOLOGY: HPLC-UV/PDA data obtained from extracts of leaves were evaluated employing a combination of MCR-ALS and PCA, which allowed the use of the full chromatographic and spectrometric information without the need of peak alignment procedures. RESULTS: The use of MCR-ALS/PCA showed better results than the conventional PCA using only one wavelength. Only two of nine commercial samples presented characteristics similar to the authentic Bauhinia forficata spp., considering the full HPLC-UV/PDA data. CONCLUSION: The combination of MCR-ALS and PCA is very useful when applied to a group of samples where a general alignment procedure could not be applied due to the different chromatographic profiles. This work also demonstrates the need of more strict control from the health authorities regarding herbal products available on the market.


Assuntos
Bauhinia/química , Cromatografia Líquida de Alta Pressão/métodos , Preparações de Plantas/análise , Análise de Componente Principal/métodos , Espectrofotometria Ultravioleta/métodos , Análise por Conglomerados , Análise dos Mínimos Quadrados , Análise Multivariada , Folhas de Planta/química , Preparações de Plantas/classificação , Preparações de Plantas/normas , Vigilância de Produtos Comercializados/métodos , Vigilância de Produtos Comercializados/normas , Padrões de Referência , Reprodutibilidade dos Testes
19.
ScientificWorldJournal ; 2014: 154539, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25401125

RESUMO

Ecological succession itself could be a theoretical reference for ecosystem restoration and reconstruction. Glacier forelands are ideal places for investigating plant succession because there are representative ecological succession records at long temporal scales. Based on field observations and experimental data on the foreland of Baishui number 1 Glacier on Mt. Yulong, the succession and dispersal mechanisms of dominant plant species were examined by using numerical classification and ordination methods. Fifty samples were first classified into nine community types and then into three succession stages. The three succession stages occurred about 9-13, 13-102, and 110-400 years ago, respectively. The earliest succession stage contained the association of Arenaria delavayi + Meconopsis horridula. The middle stage contained the associations of Arenaria delavayi + Kobresia fragilis, Carex capilliformis + Polygonum macrophyllum, Carex kansuensis, and also Pedicularis rupicola. The last stage included the associations of Kobresia fragilis + Carex capilliformis, Kobresia fragilis, Kobresia fragilis + Ligusticum rechingerana, and Kobresia fragilis + Ligusticum sikiangense. The tendency of the succession was from bare land to sparse vegetation and then to alpine meadow. In addition, three modes of dispersal were observed, namely, anemochory, mammalichory, and myrmecochory. The dispersal modes of dominant species in plant succession process were evolved from anemochory to zoochory.


Assuntos
Ecossistema , Pradaria , Camada de Gelo , Preparações de Plantas/classificação , Plantas/classificação , China , Preparações de Plantas/isolamento & purificação
20.
J Ethnopharmacol ; 155(2): 1263-75, 2014 Sep 11.
Artigo em Inglês | MEDLINE | ID: mdl-25066204

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Ethnomedicinal studies are significant for the discovery of new crude drugs from indigenous reported medicinal plants. The current study aimed to report the indigenous medicinal knowledge of plants and herbal remedies used as folk medicines in Cholistan desert, Punjab Province, Pakistan. MATERIAL AND METHODS: Rapid appraisal approach (RAA), semi-structured interviews, group meetings with herbalists, landowners and local people having awareness about the medicinal action of plants were employed to collect the data. RESULTS AND DISCUSSIONS: This study reports 70 medicinal plants belonging to 27 families that were disseminated among 60 different genera and Poaceae was the predominant family over others with 13 reported medicinal plants. Among plant parts, leaves were the dominant over others with 26.4% used in herbal preparations followed by the stem (25.2%), fruit (21.5%), flower (16.3%), seed (6.5%), bark and pod (02%). Haloxylon recurvum exhibited the highest use vale (UV) 0.83 while least UV was exhibited by Mollugo cerviana that was 0.16. CONCLUSION: Important medicinal plants, reported in this study have been screened for phytochemical and pharmaceutical activities in different parts of the globe. It is recommended that reported medicinal plants having potent action for cancer and hepatitis must be screened for pharmacological activities.


Assuntos
Povo Asiático/psicologia , Comportamentos Relacionados com a Saúde/etnologia , Conhecimentos, Atitudes e Prática em Saúde/etnologia , Medicina Tradicional , Fitoterapia , Preparações de Plantas/uso terapêutico , Plantas Medicinais , Características Culturais , Coleta de Dados , Clima Desértico , Etnofarmacologia , Humanos , Paquistão , Preparações de Plantas/classificação , Plantas Medicinais/classificação
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