Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 1.946
Filtrar
Mais filtros

Intervalo de ano de publicação
1.
Pharmacol Res ; 203: 107179, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38615876

RESUMO

Exosomes, small yet vital extracellular vesicles, play an integral role in intercellular communication. They transport critical components, such as proteins, lipid bilayers, DNA, RNA, and glycans, to target cells. These vesicles are crucial in modulating the extracellular matrix and orchestrating signal transduction processes. In oncology, exosomes are pivotal in tumor growth, metastasis, drug resistance, and immune modulation within the tumor microenvironment. Exosomal proteins, noted for their stability and specificity, have garnered widespread attention. This review delves into the mechanisms of exosomal protein loading and their impact on tumor development, with a focus on the regulatory effects of natural products and traditional Chinese medicine on exosomal protein loading and function. These insights not only offer new strategies and methodologies for cancer treatment but also provide scientific bases and directions for future clinical applications.


Assuntos
Produtos Biológicos , Exossomos , Medicina Tradicional Chinesa , Neoplasias , Humanos , Exossomos/metabolismo , Neoplasias/tratamento farmacológico , Neoplasias/metabolismo , Animais , Produtos Biológicos/uso terapêutico , Produtos Biológicos/farmacologia , Microambiente Tumoral/efeitos dos fármacos
2.
Mar Drugs ; 22(4)2024 Apr 10.
Artigo em Inglês | MEDLINE | ID: mdl-38667785

RESUMO

Diabetes mellitus is a chronic metabolic condition marked by high blood glucose levels caused by inadequate insulin synthesis or poor insulin use. This condition affects millions of individuals worldwide and is linked to a variety of consequences, including cardiovascular disease, neuropathy, nephropathy, and retinopathy. Diabetes therapy now focuses on controlling blood glucose levels through lifestyle changes, oral medicines, and insulin injections. However, these therapies have limits and may not successfully prevent or treat diabetic problems. Several marine-derived chemicals have previously demonstrated promising findings as possible antidiabetic medicines in preclinical investigations. Peptides, polyphenols, and polysaccharides extracted from seaweeds, sponges, and other marine species are among them. As a result, marine natural products have the potential to be a rich source of innovative multitargeted medications for diabetes prevention and treatment, as well as associated complications. Future research should focus on the chemical variety of marine creatures as well as the mechanisms of action of marine-derived chemicals in order to find new antidiabetic medicines and maximize their therapeutic potential. Based on preclinical investigations, this review focuses on the next step for seaweed applications as potential multitargeted medicines for diabetes, highlighting the bioactivities of seaweeds in the prevention and treatment of this illness.


Assuntos
Diabetes Mellitus , Suplementos Nutricionais , Hipoglicemiantes , Alga Marinha , Alga Marinha/química , Humanos , Hipoglicemiantes/farmacologia , Hipoglicemiantes/uso terapêutico , Diabetes Mellitus/tratamento farmacológico , Animais , Produtos Biológicos/farmacologia , Produtos Biológicos/uso terapêutico , Organismos Aquáticos
3.
Neurochem Int ; 176: 105738, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38616012

RESUMO

Numerous clinical trials involving natural products have been conducted to observe cognitive performances and biomarkers in Alzheimer's Disease (AD) patients. However, to date, no natural-based drugs have been approved by the FDA as treatments for AD. In this review, natural product-based compounds that were tested in clinical trials from 2011 to 2023, registered at www.clinicaltrials.gov were reviewed. Thirteen compounds, encompassing 7 different mechanisms of action were covered. Several observations were deduced, which are: i) several compounds showed cognitive improvement, but these improvements may not extend to AD, ii) compounds that are endogenous to the human body showed better outcomes, and iii) Docosahexaenoic acid (DHA) and cerebrolysin had the most potential as AD drugs among the 13 compounds. Based on the current findings, natural products may be more suitable as a supplement than AD drugs in most cases. However, the studies covered here were conducted in a relatively short amount of time, where compounds acting on AD pathways may take time to show any effect. Given the diverse pathways that these natural products are involved in, they may potentially produce synergistic effects that would be beneficial in treating AD. Additionally, natural products benefit from both physicochemical properties being in more favorable ranges and active transport playing a more significant role than it does for synthetic compounds.


Assuntos
Doença de Alzheimer , Produtos Biológicos , Doença de Alzheimer/tratamento farmacológico , Doença de Alzheimer/metabolismo , Humanos , Produtos Biológicos/uso terapêutico , Produtos Biológicos/farmacologia , Animais
4.
Planta Med ; 90(6): 440-453, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38588695

RESUMO

Cancer is one of the biggest health concerns with a complex pathophysiology. Currently, available chemotherapeutic drugs are showing deleterious side effects, and tumors often show resistance to treatment. Hence, extensive research is required to develop new treatment strategies to fight against cancer. Natural resources from plants are at the forefront of hunting novel drugs to treat various types of cancers. Withaferin A (WA) is a naturally occurring withanolide, a biologically active component obtained from the plant Ashwagandha. Various in vitro and in vivo oncological studies have reported that Withaferin A (WA) has shown protection from cancer. WA shows its activity by inhibiting the growth and proliferation of malignant cells, apoptosis, and inhibiting angiogenesis, metastasis, and cancer stem cells (CSCs). In addition, WA also showed chemo- and radio-sensitizing properties. Besides the beneficiary pharmacological activities of WA, a few aspects like pharmacokinetic properties, safety, and toxicity studies are still lacking, hindering this potent natural product from entering clinical development. In this review, we have summarized the various pharmacological mechanisms shown by WA in in vitro and in vivo cancer studies and the challenges that must be overcome for this potential natural product's clinical translation to be effective.


Assuntos
Neoplasias , Vitanolídeos , Vitanolídeos/farmacologia , Vitanolídeos/uso terapêutico , Humanos , Neoplasias/tratamento farmacológico , Animais , Produtos Biológicos/farmacologia , Produtos Biológicos/uso terapêutico , Antineoplásicos Fitogênicos/farmacologia , Antineoplásicos Fitogênicos/uso terapêutico , Apoptose/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos
5.
Front Immunol ; 15: 1340307, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38426097

RESUMO

Lung cancer is a disease of global concern, and immunotherapy has brought lung cancer therapy to a new era. Besides promising effects in the clinical use of immune checkpoint inhibitors, immune-related adverse events (irAEs) and low response rates are problems unsolved. Natural products and traditional medicine with an immune-modulating nature have the property to influence immune checkpoint expression and can improve immunotherapy's effect with relatively low toxicity. This review summarizes currently approved immunotherapy and the current mechanisms known to regulate immune checkpoint expression in lung cancer. It lists natural products and traditional medicine capable of influencing immune checkpoints or synergizing with immunotherapy in lung cancer, exploring both their effects and underlying mechanisms. Future research on immune checkpoint modulation and immunotherapy combination applying natural products and traditional medicine will be based on a deeper understanding of their mechanisms regulating immune checkpoints. Continued exploration of natural products and traditional medicine holds the potential to enhance the efficacy and reduce the adverse reactions of immunotherapy.


Assuntos
Produtos Biológicos , Neoplasias Pulmonares , Humanos , Neoplasias Pulmonares/terapia , Neoplasias Pulmonares/etiologia , Produtos Biológicos/uso terapêutico , Imunoterapia/efeitos adversos , Medicina Tradicional
6.
Phytomedicine ; 127: 155503, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38490077

RESUMO

BACKGROUND: Natural products have demonstrated significant potential in cancer drug discovery, particularly in renal cancer (RCa), urothelial carcinoma (UC), and testicular cancer (TC). PURPOSE: This review aims to examine the effects of natural products on RCa, UC and TC. STUDY DESIGN: systematic review METHODS: PubMed and Web of Science databases were retrieved to search studies about the effects of natural products and derivatives on these cancers. Relevant publications in the reference list of enrolled studies were also checked. RESULTS: This review highlighted their diverse impacts on key aspects such as cell growth, apoptosis, metastasis, therapy response, and the immune microenvironment. Natural products not only hold promise for novel drug development but also enhance the efficacy of existing chemotherapy and immunotherapy. Importantly, we exert their effects through modulation of critical pathways and target genes, including the PI3K/AKT pathway, NF-κB pathway, STAT pathway and MAPK pathway, among others in RCa, UC, and TC. CONCLUSION: These mechanistic insights provide valuable guidance for researchers, facilitating the selection of promising natural products for cancer management and offering potential avenues for further gene regulation studies in the context of cancer treatment.


Assuntos
Produtos Biológicos , Carcinoma de Células de Transição , Neoplasias Embrionárias de Células Germinativas , Neoplasias Testiculares , Neoplasias da Bexiga Urinária , Masculino , Humanos , Carcinoma de Células de Transição/genética , Carcinoma de Células de Transição/metabolismo , Carcinoma de Células de Transição/patologia , Neoplasias da Bexiga Urinária/metabolismo , Fosfatidilinositol 3-Quinases/metabolismo , Neoplasias Testiculares/tratamento farmacológico , Produtos Biológicos/farmacologia , Produtos Biológicos/uso terapêutico , Transdução de Sinais , Microambiente Tumoral
7.
Int J Mol Sci ; 25(6)2024 Mar 20.
Artigo em Inglês | MEDLINE | ID: mdl-38542454

RESUMO

Necrobiosis lipoidica (NL) is a rare granulomatous disease of a not fully understood etiopathogenesis. Classically, NL is associated with insulin-dependent diabetes mellitus. The disease often fails to respond to conventional treatments and adversely affects patients' quality of life. First-line medications are usually topical corticosteroids, but patients respond to them with varying degrees of success. Other options include tacrolimus, phototherapy, cyclosporine, fumaric acid esters, and biologics (adalimumab, etanercept, and infliximab). Our review aims to present new therapeutic approaches potentially effective in patients with refractory lesions, describe the presumed etiopathogenesis, and provide diagnostic guidance for clinicians. The review concludes that Janus kinase inhibitors and biologics such as ustekinumab and secukinumab can be used effectively in patients with recalcitrant NL. Another promising treatment option is tapinarof (an aryl hydrocarbon receptor agonist). However, studies on larger groups of patients are still needed to evaluate the effectiveness of different therapeutic options and to define consistent treatment regimens for NL. It is advisable to improve the awareness of physicians of various specialties regarding necrobiosis lipoidica as lesions diagnosed earlier usually have a better response to treatment.


Assuntos
Produtos Biológicos , Fármacos Dermatológicos , Diabetes Mellitus Tipo 1 , Necrobiose Lipoídica , Humanos , Necrobiose Lipoídica/diagnóstico , Necrobiose Lipoídica/tratamento farmacológico , Necrobiose Lipoídica/etiologia , Qualidade de Vida , Diabetes Mellitus Tipo 1/complicações , Fármacos Dermatológicos/uso terapêutico , Produtos Biológicos/uso terapêutico
8.
Phytomedicine ; 128: 155379, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38503157

RESUMO

BACKGROUND: c-MET is a receptor tyrosine kinase which is classically activated by HGF to activate its downstream signaling cascades such as MAPK, PI3K/Akt/mTOR, and STAT3. The c-MET modulates cell proliferation, epithelial-mesenchymal transition (EMT), immune response, morphogenesis, apoptosis, and angiogenesis. The c-MET has been shown to serve a prominent role in embryogenesis and early development. The c-MET pathway is deregulated in a broad range of malignancies, due to overexpression of ligands or receptors, genomic amplification, and MET mutations. The link between the deregulation of c-MET signaling and tumor progression has been well-documented. Overexpression or overactivation of c-MET is associated with dismal clinical outcomes and acquired resistance to targeted therapies. Since c-MET activation results in the triggering of oncogenic pathways, abrogating the c-MET pathway is considered to be a pivotal strategy in cancer therapeutics. Herein, an analysis of role of the c-MET pathway in human cancers and its relevance in bone metastasis and therapeutic resistance has been undertaken. Also, an attempt has been made to summarize the inhibitory activity of selected natural compounds towards c-MET signaling in cancers. METHODS: The publications related to c-MET pathway in malignancies and its natural compound modulators were obtained from databases such as PubMed, Scopus, and Google Scholar and summarized based on PRISMA guidelines. Some of the keywords used for extracting relevant literature are c-MET, natural compound inhibitors of c-MET, c-MET in liver cancer, c-MET in breast cancer, c-MET in lung cancer, c-MET in pancreatic cancer, c-MET in head and neck cancer, c-MET in bone metastasis, c-MET in therapeutic resistance, and combination of c-MET inhibitors and chemotherapeutic agents. The chemical structure of natural compounds was verified in PubChem database. RESULTS: The search yielded 3935 publications, of which 195 reference publications were used for our analysis. Clinical trials were referenced using ClinicalTrials.gov identifier. The c-MET pathway has been recognized as a prominent target to combat the growth, metastasis, and chemotherapeutic resistance in cancers. The key role of the c-MET in bone metastasis as well as therapeutic resistance has been elaborated. Also, suppressive effect of selected natural compounds on the c-MET pathway in clinical/preclinical studies has been discussed.


Assuntos
Neoplasias , Proteínas Proto-Oncogênicas c-met , Transdução de Sinais , Humanos , Proteínas Proto-Oncogênicas c-met/metabolismo , Neoplasias/tratamento farmacológico , Transdução de Sinais/efeitos dos fármacos , Produtos Biológicos/farmacologia , Produtos Biológicos/uso terapêutico , Antineoplásicos Fitogênicos/farmacologia , Antineoplásicos Fitogênicos/uso terapêutico , Neoplasias Ósseas/tratamento farmacológico , Neoplasias Ósseas/secundário , Neoplasias Ósseas/metabolismo
9.
Pharmacol Res ; 203: 107150, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38521285

RESUMO

Cancer, with its diversity, heterogeneity, and complexity, is a significant contributor to global morbidity, disability, and mortality, highlighting the necessity for transformative treatment approaches. Photodynamic therapy (PDT) has aroused continuous interest as a viable alternative to conventional cancer treatments that encounter drug resistance. Nanotechnology has brought new advances in medicine and has shown great potential in drug delivery and cancer treatment. For precise and efficient therapeutic utilization of such a tumor therapeutic approach with high spatiotemporal selectivity and minimal invasiveness, the carrier-free noncovalent nanoparticles (NPs) based on chemo-photodynamic combination therapy is essential. Utilizing natural products as the foundation for nanodrug development offers unparalleled advantages, including exceptional pharmacological activity, easy functionalization/modification, and well biocompatibility. The natural-product-based, carrier-free, noncovalent NPs revealed excellent synergistic anticancer activity in comparison with free photosensitizers and free bioactive natural products, representing an alternative and favorable combination therapeutic avenue to improve therapeutic efficacy. Herein, a comprehensive summary of current strategies and representative application examples of carrier-free noncovalent NPs in the past decade based on natural products (such as paclitaxel, 10-hydroxycamptothecin, doxorubicin, etoposide, combretastatin A4, epigallocatechin gallate, and curcumin) for tumor chemo-photodynamic combination therapy. We highlight the insightful design and synthesis of the smart carrier-free NPs that aim to enhance PDT efficacy. Meanwhile, we discuss the future challenges and potential opportunities associated with these NPs to provide new enlightenment, spur innovative ideas, and facilitate PDT-mediated clinical transformation.


Assuntos
Produtos Biológicos , Nanopartículas , Neoplasias , Fotoquimioterapia , Humanos , Animais , Neoplasias/tratamento farmacológico , Nanopartículas/química , Produtos Biológicos/química , Produtos Biológicos/uso terapêutico , Produtos Biológicos/farmacologia , Produtos Biológicos/administração & dosagem , Antineoplásicos/uso terapêutico , Antineoplásicos/farmacologia , Antineoplásicos/administração & dosagem , Antineoplásicos/química , Fármacos Fotossensibilizantes/uso terapêutico , Fármacos Fotossensibilizantes/farmacologia , Fármacos Fotossensibilizantes/química , Fármacos Fotossensibilizantes/administração & dosagem
10.
Phytomedicine ; 128: 155535, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38537442

RESUMO

BACKGROUND: Pulmonary arterial hypertension (PAH) is a fatal disease caused by pulmonary vascular remodeling, with a high incidence and mortality. At present, many clinical drugs for treating PAH mainly exert effects by relaxing the pulmonary artery, with limited therapeutic effects, so the search for viable therapeutic agents continues uninterrupted. In recent years, natural flavonoids have shown promising potential in the treatment of cardiovascular diseases. It is necessary to comprehensively elucidate the potential of natural flavonoids to combat PAH. PURPOSE: To evaluate the potential of natural flavonoids to hinder or slow down the occurrence and development of PAH, and to identify promising drug discovery candidates. METHODS: Literature was collected from PubMed, Science Direct, Web of science, CNKI databases and Google scholar. The search terms used included "pulmonary arterial hypertension", "pulmonary hypertension", "natural products", "natural flavonoids", "traditional chinese medicine", etc., and several combinations of these keywords. RESULTS: The resources, structural characteristics, mechanisms, potential and prospect strategies of natural flavonoids for treating PAH were summarized. Natural flavonoids offer different solutions as possible treatments for PAH. These mechanisms may involve various pathways and molecular targets related to the pathogenesis of PAH, such as inflammation, oxidative stress, vascular remodeling, genetic, ion channels, cell proliferation and autophagy. In addition, prospect strategies of natural flavonoids for anti-PAH including structural modification and nanomaterial delivery systems have been explored. This review suggests that the potential of natural flavonoids as alternative therapeutic agents in the prevention and treatment of PAH holds promise for future research and clinical applications. CONCLUSION: Despite displaying the enormous potential of flavonoids in PAH, some limitations need to be further explored. Firstly, using advanced drug discovery tools, including computer-aided design and high-throughput screening, to further investigate the safety, biological activity, and precise mechanism of action of flavonoids. Secondly, exploring the structural modifications of these compounds is expected to optimize their efficacy. Lastly, it is necessary to conduct well controlled clinical trials and a comprehensive evaluation of potential side effects to determine their effectiveness and safety.


Assuntos
Flavonoides , Hipertensão Arterial Pulmonar , Flavonoides/farmacologia , Flavonoides/uso terapêutico , Humanos , Hipertensão Arterial Pulmonar/tratamento farmacológico , Animais , Hipertensão Pulmonar/tratamento farmacológico , Estresse Oxidativo/efeitos dos fármacos , Remodelação Vascular/efeitos dos fármacos , Produtos Biológicos/farmacologia , Produtos Biológicos/uso terapêutico , Medicina Tradicional Chinesa/métodos
11.
Curr Allergy Asthma Rep ; 24(3): 143-154, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38472601

RESUMO

PURPOSE OF REVIEW: We aimed to reach an Italian multidisciplinary consensus on some crucial aspects of treatment decision making in CRSwNP, following 2 years of clinical experience in order to support specialists in the management of CRSwNP in clinical practice. We addressed issues relating to therapeutic decision-making and shared criteria for the treatment choice, as well as appropriate timing and criteria for evaluating treatment response, and highlighted the need for repeated multidisciplinary assessments. RECENT FINDINGS: A national survey has been conducted recently to understand how rhinology practice has changed in Italy with the advent of biologics and how this affects patients with uncontrolled, severe CRSwNP. Despite the many published consensus documents, practical recommendations, and protocols on the use of biologics in CRSwNP, heterogenous behaviors in practice are still observed mainly conditioned by the novelty of the topic. The consensus procedure followed a modified Delphi approach. The scientific board included 18 otorhinolaryngologists and 8 allergists, who selected the 4 main topics to be addressed and developed overall 20 statements. Consensus on these statements was sought by a larger group of 48 additional experts, through two rounds of voting, the first web-based, the second in presence with discussion and possible refinement of the statements. The statements reaching an average score ≥ 7 at the second voting round were approved. Five statements were proposed for each of the following topics: baseline evaluation of patients eligible for biologic therapy; choice between different therapeutic options; assessment of the response to biologic treatment; multidisciplinary management. At the first voting round, 19 out of the 20 statements reached a mean score ≥ 7. Following the discussion and a few consequent amendments, at the second round of voting all the 20 statements were approved.


Assuntos
Produtos Biológicos , Pólipos Nasais , Humanos , Consenso , Itália , Terapia Biológica , Produtos Biológicos/uso terapêutico , Pólipos Nasais/tratamento farmacológico , Doença Crônica
12.
HNO ; 72(4): 231-241, 2024 Apr.
Artigo em Alemão | MEDLINE | ID: mdl-38472346

RESUMO

BACKGROUND: In recent years, significant improvements have been made in the treatment options for uncontrolled chronic rhinosinusitis (CRS) refractory to standard medical and surgical therapy. This is the result of a better understanding of the pathophysiology and the resulting development of biologicals for CRS with nasal polyps (CRSwNP). However, biologics are not (yet) available for all patients in Europe. OBJECTIVE: Based on the session "Difficult-to-treat CRS, when biologics are not available" at the 29th Congress of the European Rhinologic Society (ERS) 2023 in Sofia, Bulgaria, the treatment options for uncontrolled CRS with the exclusion of biologics will be discussed. MATERIALS AND METHODS: The content of the presentations "Is there a place for antibiotics?" "Indications for revision surgery," "Novel systemic treatment options," "Novel local treatment options," and "Phototherapy for nasal polyps" are outlined and supported by a review of the literature. RESULTS: Various treatment options are available for managing uncontrolled CRS, even if biologic treatments are unavailable. Treatment options for type­2 (T2) CRS include steroid rinses, repeated short-term oral steroids, steroid-eluting stents, and extended sinus surgery. In the case of nonsteroidal anti-inflammatory drug (NSAID)-exacerbated respiratory disease (NERD), acetylsalicylic acid (ASA) desensitization can be considered. Non-T2 endotypes or CRS without nasal polyps (CRSsNP) may benefit from several weeks of macrolides and xylitol rinses. CONCLUSION: To accurately assess the efficacy of second-line therapies for treatment of difficult-to-treat CRS within an endotype-specific framework, additional controlled clinical trials are needed that take into account the heterogeneity of CRS endotypes.


Assuntos
Produtos Biológicos , Pólipos Nasais , Rinite , Rinossinusite , Sinusite , Humanos , Rinite/diagnóstico , Rinite/terapia , Pólipos Nasais/diagnóstico , Pólipos Nasais/tratamento farmacológico , Sinusite/diagnóstico , Sinusite/tratamento farmacológico , Esteroides/uso terapêutico , Doença Crônica , Produtos Biológicos/uso terapêutico
13.
Molecules ; 29(4)2024 Feb 09.
Artigo em Inglês | MEDLINE | ID: mdl-38398566

RESUMO

Pain is associated with many health problems and a reduced quality of life and has been a common reason for seeking medical attention. Several therapeutics are available on the market, although side effects, physical dependence, and abuse limit their use. As the process of pain transmission and modulation is regulated by different peripheral and central mechanisms and neurotransmitters, medicinal chemistry continues to study novel ligands and innovative approaches. Among them, natural products are known to be a rich source of lead compounds for drug discovery due to their chemical structural variety and different analgesic mechanisms. Numerous studies suggested that some chemicals from medicinal plants could be alternative options for pain relief and management. Previously, we conducted a literature search aimed at identifying natural products interacting either directly or indirectly with opioid receptors. In this review, instead, we have made an excursus including active ingredients derived from plants whose mechanism of action appears from the literature to be other than the modulation of the opioid system. These substances could, either by themselves or through synthetic and/or semi-synthetic derivatives, be investigated in order to improve their pharmacokinetic characteristics and could represent a valid alternative to the opioid approach to pain therapy. They could also be the basis for the study of new mechanisms of action in the approach to this complex and disabling pathology.


Assuntos
Produtos Biológicos , Plantas Medicinais , Analgésicos Opioides/farmacologia , Analgésicos Opioides/uso terapêutico , Química Farmacêutica , Qualidade de Vida , Dor/tratamento farmacológico , Analgésicos/farmacologia , Analgésicos/uso terapêutico , Desenho de Fármacos , Produtos Biológicos/uso terapêutico
14.
Am J Chin Med ; 52(1): 57-88, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38353634

RESUMO

Chronic respiratory diseases are long-term conditions affecting the airways and other lung components that are characterized by a high prevalence, disability rate, and mortality rate. Further optimization of their treatment is required. Natural products, primarily extracted from organisms, possess specific molecular and structural formulas as well as distinct chemical and physical properties. These characteristics grant them the advantages of safety, gentleness, accessibility, and minimal side effects. The numerous advances in the use of natural products for treating chronic respiratory diseases have provided a steady source of motivation for new drug research and development. In this paper, we introduced the pathogenesis of chronic respiratory diseases and natural products. Furthermore, we classified natural products according to their mechanism for treating chronic respiratory diseases and describe the ways in which these products can alleviate the pathological symptoms. Simultaneously, we elaborate on the signal transduction pathways and biological impacts of natural products' targeting. Additionally, we present future prospects for natural products, considering their combination treatment approaches and administration methods. The significance of this review extends to both the research on preventing and treating chronic respiratory diseases, as well as the advancement of novel drug development in this field.


Assuntos
Produtos Biológicos , Doenças Respiratórias , Humanos , Produtos Biológicos/uso terapêutico , Produtos Biológicos/química , Desenvolvimento de Medicamentos , Doenças Respiratórias/tratamento farmacológico
15.
Planta Med ; 90(5): 368-379, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38423033

RESUMO

Photodynamic therapy is a noninvasive cancer treatment that utilizes photosensitizers to generate reactive oxygen species upon light exposure, leading to tumor cell apoptosis. Although photosensitizers have shown efficacy in clinical practice, they are associated with certain disadvantages, such as a certain degree of toxicity and limited availability. Recent studies have shown that natural product photosensitizers offer promising options due to their low toxicity and potential therapeutic effects. In this review, we provide a summary and evaluation of the current clinical photosensitizers that are commonly used and delve into the anticancer potential of natural product photosensitizers like psoralens, quinonoids, chlorophyll derivatives, curcumin, chrysophanol, doxorubicin, tetracyclines, Leguminosae extracts, and Lonicera japonica extract. The emphasis is on their phototoxicity, pharmacological benefits, and effectiveness against different types of diseases. Novel and more effective natural product photosensitizers for future clinical application are yet to be explored in further research. In conclusion, natural product photosensitizers have potential in photodynamic therapy and represent a promising area of research for cancer treatment.


Assuntos
Produtos Biológicos , Curcumina , Neoplasias , Fotoquimioterapia , Fármacos Fotossensibilizantes/farmacologia , Fármacos Fotossensibilizantes/uso terapêutico , Produtos Biológicos/farmacologia , Produtos Biológicos/uso terapêutico , Espécies Reativas de Oxigênio/metabolismo , Curcumina/uso terapêutico , Neoplasias/tratamento farmacológico
16.
Adv Ther ; 41(4): 1401-1418, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38349560

RESUMO

INTRODUCTION: Biologic therapies have demonstrated benefits for individuals with severe asthma, including reduced daily symptoms and severe exacerbations. However, data describing patient perspectives on these treatments are limited. This study sought to understand the preferences and priorities of Canadians with severe asthma in the context of novel biologic treatment options. METHODS: Semi-structured, qualitative interviews were conducted among Canadians with severe asthma from July to August 2022. Purposeful sampling included individuals with and without biologic therapy experience. All participants described daily life with severe asthma, experiences and priorities related to asthma treatment and their impressions of biologics. Reflexive thematic analysis was used to explore patterns in the data. RESULTS: Among 18 individuals included, 10 were currently taking or had prior experience with biologic treatment for asthma. Those who had never been treated with biologics were unfamiliar with them, considering treatment, or believed that they may not be eligible. Four themes were developed to convey the perspectives of participants on biologics: (1) life-changing benefits, but not for all; (2) navigating barriers to being prescribed and remaining adherent to biologic treatments; (3) treatment administration preferences are not only about convenience; (4) concerns about safety and the unknown as a source of treatment hesitancy. CONCLUSIONS: Findings suggest that the clinical benefits of biologics align with patient perceptions of achieving good asthma control. However, treatment gaps persist among individuals who do not experience a meaningful improvement in their asthma symptoms and those who face barriers accessing biologics. People with severe asthma attributed importance to greater availability of at-home treatment options, improved access to financial support to cover treatment costs and support to address safety concerns. This research provides insight into patient-based treatment priorities and preferences for biologics, which may help inform decision-making related to emerging therapies for severe asthma.


For people with severe asthma, biologics are a treatment option that can be taken in addition to their regular medication. In this study, we asked 18 Canadians with severe asthma about how having severe asthma affects their lives, their current and previous asthma treatments, and their views on biologics. Ten people in this study were currently taking or had previously taken biologics for severe asthma. We found that biologics can be life changing. Also, people with severe asthma can find it difficult to get on and stay on biologics. They would like financial and educational support when considering biologics and prefer to take biologics at home, if possible. This study helps us understand the priorities and preferences related to biologics of patients with severe asthma.


Assuntos
Asma , Produtos Biológicos , População Norte-Americana , Humanos , Produtos Biológicos/uso terapêutico , Canadá , Asma/tratamento farmacológico , Terapia Biológica
18.
J Alzheimers Dis ; 97(4): 1961-1970, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38306046

RESUMO

Background: In recent years, there has been a growing interest, supported by many experimental and clinical studies, about the benefits of pomegranate in preventing various pathologic conditions, including brain neurodegeneration. The pomegranate seed oil (PSO) contains high levels of fatty acids that have antioxidant and anti-inflammatory properties. Objective: Due to the lack of clinical trials, the aim of the present study was to investigate the effects of PSO on cognition of people with mild cognitive impairment (MCI). Methods: Eighty people with the diagnosis of MCI were randomized forty to take 5 drops of PSO and follow the Mediterranean Diet (MeDi) and forty just followed MeDi. All were examined with an extensive neuropsychological assessment before and after one year of treatment. Results: The results showed that the participants who took the PSO had statistically significantly better global cognition (p = 0.004), verbal episodic memory (p = 0.009), and processing and executive functions (p < 0.001) in contrast with the participants who did not take it. Conclusions: In conclusion, the PSO can be beneficial for people with MCI as it is helpful for some important cognitive domains. As PSO is a natural product that does not burden the human body, it can be used by people with MCI and be a significant and promising part of holistic approaches for the prevention of dementia.


Assuntos
Produtos Biológicos , Disfunção Cognitiva , Punica granatum , Humanos , Produtos Biológicos/farmacologia , Produtos Biológicos/uso terapêutico , Cognição , Disfunção Cognitiva/diagnóstico , Testes Neuropsicológicos , Óleos de Plantas/uso terapêutico , Óleos de Plantas/farmacologia
19.
Int J Mol Sci ; 25(3)2024 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-38338983

RESUMO

Eosinophilic esophagitis (EoE) is a multifaceted disease characterized by a wide heterogeneity of clinical manifestations, endoscopic and histopathologic patterns, and responsiveness to therapy. From the perspective of an effective approach to the patient, the different inflammatory mechanisms involved in the pathogenesis of EoE and biologics, in particular monoclonal antibodies (mAbs), targeting these pathways are needed. Currently, the most relevant is dupilumab, which interferes with both interleukin (IL)-4 and IL-13 pathways by binding IL-4 receptor α, and is the only mAb approved by the European Medicine Agency and US Food and Drug Administration for the treatment of EoE. Other mAbs investigated include mepolizumab, reslizumab, and benralizumab (interfering with IL-5 axis), cendakimab and dectrekumab (anti-IL-13s), tezepelumab (anti-TSLP), lirentelimab (anti-SIGLEG-8), and many others. Despite the undeniable economic impact of biologic therapies, in the near future, there will be room for further reflection about the opportunity to prescribe biologic agents, not only as a last-line therapy in selected cases such as patients with comorbidities involving common pathways. Although recent findings are very encouraging, the road to permanent success in the treatment of EoE is still long, and further studies are needed to determine the long-term effects of mAbs and to discover new potential targets.


Assuntos
Produtos Biológicos , Enterite , Eosinofilia , Esofagite Eosinofílica , Gastrite , Humanos , Esofagite Eosinofílica/tratamento farmacológico , Produtos Biológicos/uso terapêutico , Terapia Biológica , Fatores Biológicos/uso terapêutico
20.
Int J Mol Sci ; 25(3)2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-38339077

RESUMO

Black garlic (BG) is a fermented form of garlic (Allium sativum L.), produced at precisely defined temperatures, humidities, and time periods. Although garlic has been used for thousands of years, black garlic is a relatively new discovery. There are many bioactive compounds in black garlic that give it medicinal properties, including anti-inflammatory and anti-cancer properties. In our review article, we present scientific studies examining the anti-inflammatory and anti-cancer effects of black garlic. According to research, this effect is mainly due to the reduction in the production of pro-inflammatory cytokines, as well as the ability to scavenge free oxygen radicals and induce apoptosis. In addition, the phytochemicals contained in it have antiproliferative and antiangiogenic properties and inhibit the growth of cancer cells. Black garlic is a valuable source of biologically active substances that can support anti-inflammatory and anti-cancer therapy. Compared to Allium sativum, black garlic has fewer side effects and is easier to consume.


Assuntos
Produtos Biológicos , Alho , Neoplasias , Humanos , Alho/química , Extratos Vegetais/farmacologia , Extratos Vegetais/uso terapêutico , Extratos Vegetais/química , Antioxidantes/farmacologia , Neoplasias/tratamento farmacológico , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/uso terapêutico , Produtos Biológicos/uso terapêutico
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA