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Métodos Terapêuticos e Terapias MTCI
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1.
J Ethnopharmacol ; 267: 113477, 2021 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-33098971

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Traditional pharmacopeias have been developed by multiple cultures and evaluated for efficacy and safety through both historical/empirical iteration and more recently through controlled studies using Western scientific paradigms and an increasing emphasis on data science methodologies for network pharmacology. Traditional medicines represent likely sources of relatively inexpensive drugs for symptomatic management as well as potential libraries of new therapeutic approaches. Leveraging this potential requires hard evidence for efficacy that separates science from pseudoscience. MATERIALS AND METHODS: We performed a review of non-Western medical systems and developed case studies that illustrate the epistemological and practical translative barriers that hamper their transition to integration with Western approaches. We developed a new data analytics approach, in silico convergence analysis, to deconvolve modes of action, and potentially predict desirable components of TM-derived formulations based on computational consensus analysis across cultures and medical systems. RESULTS: Abstraction, simplification and altered dose and delivery modalities were identified as factors that influence actual and perceived efficacy once a medicine is moved from a non-Western to Western setting. Case studies on these factors highlighted issues with translation between non-Western and Western epistemologies, including those where epistemological and medicinal systems drive markets that can be epicenters for zoonoses such as the novel Coronavirus. The proposed novel data science approach demonstrated the ability to identify and predict desirable medicinal components for a test indication, pain. CONCLUSIONS: Relegation of traditional therapies to the relatively unregulated nutraceutical industry may lead healthcare providers and patients to underestimate the therapeutic potential of these medicines. We suggest three areas of emphasis for this field: First, vertical integration and embedding of traditional medicines into healthcare systems would subject them to appropriate regulation and evidence-based practice, as viable integrative implementation mode. Second, we offer a new Bradford-Hill-like framework for setting research priorities and evaluating efficacy, with the goal of rescuing potentially valuable therapies from the nutraceutical market and discrediting those that are pseudoscience. Third, data analytics pipelines offer new capacity to generate new types of TMS-inspired medicines that are rationally-designed based on integrated knowledge across cultures, and also provide an evaluative framework against which to test claims of fidelity and efficacy to TMS made for nutraceuticals.


Assuntos
Ciência de Dados , Prestação Integrada de Cuidados de Saúde/organização & administração , Prestação Integrada de Cuidados de Saúde/tendências , Medicina Tradicional/tendências , COVID-19/terapia , Interpretação Estatística de Dados , Humanos , Medicina , Fitoterapia
2.
Channels (Austin) ; 13(1): 344-366, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31446830

RESUMO

Nociceptive Transient Receptor Potential channels such as TRPV1 are targets for treating pain. Both antagonism and agonism of TRP channels can promote analgesia, through inactivation and chronic desensitization. Since plant-derived mixtures of cannabinoids and the Cannabis component myrcene have been suggested as pain therapeutics, we screened terpenes found in Cannabis for activity at TRPV1. We used inducible expression of TRPV1 to examine TRPV1-dependency of terpene-induced calcium flux responses. Terpenes contribute differentially to calcium fluxes via TRPV1 induced by Cannabis-mimetic cannabinoid/terpenoid mixtures. Myrcene dominates the TRPV1-mediated calcium responses seen with terpenoid mixtures. Myrcene-induced calcium influx is inhibited by the TRPV1 inhibitor capsazepine and Myrcene elicits TRPV1 currents in the whole-cell patch-clamp configuration. TRPV1 currents are highly sensitive to internal calcium. When Myrcene currents are evoked, they are distinct from capsaicin responses on the basis of Imax and their lack of shift to a pore-dilated state. Myrcene pre-application and residency at TRPV1 appears to negatively impact subsequent responses to TRPV1 ligands such as Cannabidiol, indicating allosteric modulation and possible competition by Myrcene. Molecular docking studies suggest a non-covalent interaction site for Myrcene in TRPV1 and identifies key residues that form partially overlapping Myrcene and Cannabidiol binding sites. We identify several non-Cannabis plant-derived sources of Myrcene and other compounds targeting nociceptive TRPs using a data mining approach focused on analgesics suggested by non-Western Traditional Medical Systems. These data establish TRPV1 as a target of Myrcene and suggest the therapeutic potential of analgesic formulations containing Myrcene.


Assuntos
Monoterpenos Acíclicos/metabolismo , Alcenos/metabolismo , Canabinoides/metabolismo , Extratos Vegetais/metabolismo , Canal de Cátion TRPA1/metabolismo , Monoterpenos Acíclicos/química , Alcenos/química , Cálcio/metabolismo , Canabinoides/química , Cannabis/química , Linhagem Celular , Humanos , Modelos Moleculares , Simulação de Acoplamento Molecular , Extratos Vegetais/química , Canal de Cátion TRPA1/química , Terpenos/química , Terpenos/metabolismo
3.
Phytother Res ; 29(4): 582-90, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25640812

RESUMO

Kava is a soporific, anxiolytic and relaxant in widespread ritual and recreational use throughout the Pacific. Traditional uses of kava by indigenous Pacific Island peoples reflect a complex pharmacopeia, centered on GABA-ergic effects of the well-characterized kavalactones. However, peripheral effects of kava suggest active components other than the CNS-targeted kavalactones. We have previously shown that immunocytes exhibit calcium mobilization in response to traditionally prepared kava extracts, and that the kavalactones do not induce these calcium responses. Here, we characterize the complex calcium-mobilizing activity of traditionally prepared and partially HPLC-purified kava extracts, noting induction of both calcium entry and store release pathways. Kava components activate intracellular store depletion of thapsigargin-sensitive and -insensitive stores that are coupled to the calcium release activated (CRAC) current, and cause calcium entry through non-store-operated pathways. Together with the pepper-like potency reported by kava users, these studies lead us to hypothesize that kava extracts contain one or more ligands for the transient receptor potential (TRP) family of ion channels. Indeed, TRP-like conductances are observed in kava-treated cells under patch clamp. Thus TRP-mediated cellular effects may be responsible for some of the reported pharmacology of kava.


Assuntos
Sinalização do Cálcio/efeitos dos fármacos , Cálcio/metabolismo , Kava/química , Extratos Vegetais/farmacologia , Canais de Potencial de Receptor Transitório/metabolismo , Animais , Linhagem Celular Tumoral , Cromatografia Líquida de Alta Pressão , Ligantes , Técnicas de Patch-Clamp , Ratos , Tapsigargina/química
4.
Clin Plast Surg ; 12(1): 25-31, 1985 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-3884227

RESUMO

In summary, many surgical procedures may be safely and comfortably performed utilizing regional anesthesia if only a few guidelines are followed as to choice and usage of local anesthetics. The success of a regional block will always be dependent upon correct needle placement by an experienced physician with good technical skills. However, the safety of the patient is not solely a function of experience. Modern local anesthetic preparations are reliable enough and simple enough to use that all physicians should be capable of achieving optimal patient safety at all times. If placed in a position which seems to require unfamiliar knowledge or expertise, the practitioner need only seek a consultant anesthesiologist for assistance. Plastic surgery is recognized as a specialty that frequently utilizes local anesthetics for office and outpatient procedures. The manner in which these drugs are used or abused determines their clinical reputation as well as that of the physician. It is important to promote a correct understanding of local anesthetic compounds, not only among ourselves as physicians, but also among our patients, who are becoming ever more knowledgeable of medical practice as time goes on.


Assuntos
Anestesia Local , Cirurgia Plástica , Anestesia Local/efeitos adversos , Anestésicos Locais/efeitos adversos , Anestésicos Locais/farmacologia , Anestésicos Locais/intoxicação , Ansiedade/prevenção & controle , Hipersensibilidade a Drogas/etiologia , Epinefrina/efeitos adversos , Humanos
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