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1.
Curr Pharm Des ; 29(43): 3421-3427, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38083888

RESUMO

Polyphenols and flavonoids, naturally occurring compounds found abundantly in plants, have gained considerable attention in recent years due to their potential health benefits. Research exploring their bioactive properties has revealed promising therapeutic applications in various diseases. This article aims to provide a comprehensive overview of the intricate journey from academic laboratory discoveries to the availability of polyphenols and flavonoids as drugs on pharmacy shelves. It was shown that the transformation of these natural compounds into effective therapies is a promising avenue for enhancing human health. Yet, fully realizing this potential necessitates sustained scientific exploration, cross-disciplinary collaboration, and continued investment in research and development. This article underscores the importance of sustained collaboration and investment as key pillars of progress towards innovative and effective therapies.


Assuntos
Flavonoides , Farmácia , Humanos , Flavonoides/farmacologia , Flavonoides/uso terapêutico , Polifenóis/farmacologia
2.
J Relig Health ; 61(2): 1366-1375, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-34331657

RESUMO

Communication with patients regarding oncology-related aspects is a challenging experience and requires a high level of skill from the interlocutors. The aim of this study was to verify the influence of religion/spirituality in oncological settings from the health professionals' perspectives in Poland. It assessed the role of religion/spirituality in patient-clinician communication, death or stress self-management, empathy, and breaking bad news skills. Data collection was carried out through a standardized self-administered questionnaire with varying scales. The study cohort consisted of 60 medical practitioners specializing in oncological radiotherapy treatments. It was observed that strategies used for coping with patients' death, stress reduction, empathy, communication with patients and/or their relatives, or breaking bad news skills, may be gender-specific or may depend on the length of time employed, as well as experience in a cancer-related work environment. This study shows that spirituality and religiousness can support clinicians in managing challenging or negative emotions related to their work in cancer settings. Religiousness and spirituality can also serve as a potential therapeutic strategies for those exposed to patient suffering and death.


Assuntos
Terapias Espirituais , Espiritualidade , Comunicação , Humanos , Polônia , Religião
3.
J Relig Health ; 59(6): 2671-2677, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33044598

RESUMO

The COVID-19 pandemic has impacted religion and faith in different ways. Numerous restrictions have been implemented worldwide. Believers are in conflict with authorities' warnings that gatherings must be limited to combat the spread of the virus. Religion has always played a role of the balm for the soul, and the regular religious participation is associated with better emotional health outcomes. In our study, we examined whether the exposure to COVID-19 enhances the faith. The instrument used was a survey verifying the power of spirituality in the face of the coronavirus pandemic.


Assuntos
Betacoronavirus , Infecções por Coronavirus/psicologia , Pneumonia Viral/psicologia , Religião , Espiritualidade , COVID-19 , Infecções por Coronavirus/epidemiologia , Feminino , Humanos , Masculino , Pandemias/prevenção & controle , Pneumonia Viral/epidemiologia , Religião e Medicina , SARS-CoV-2
4.
Materials (Basel) ; 13(19)2020 Sep 23.
Artigo em Inglês | MEDLINE | ID: mdl-32977453

RESUMO

Drug modification with nanomaterials is a new trend in pharmaceutical studies and shows promising results, especially considering carbon-based solutions. Graphene and its derivatives have attracted much research interest for their potential applications in biomedical areas as drug modifiers. The following work is a comprehensive study regarding the toxicity of ciprofloxacin (CIP) modified by graphene oxide (GO). The influence on the morphology, viability, cell death pathway and proliferation of T24 and 786-0 cells was studied. The results show that ciprofloxacin modified with graphene oxide (CGO) shows the highest increase in cytotoxic potential, especially in the case of T24 cells. We discovered a clear connection between CIP modification with GO and the increase in its apoptotic potential. Our results show that drug modification with carbon-based nanomaterials might be a promising strategy to improve the qualities of existing drugs. Nevertheless, it is important to remember that cytotoxicity effects are highly dependent on dose and nanomaterial size. It is necessary to conduct further research to determine the optimal dose of GO for drug modification.

5.
Molecules ; 25(15)2020 Jul 23.
Artigo em Inglês | MEDLINE | ID: mdl-32717865

RESUMO

The development of anticancer therapies that involve natural drugs has undergone exponential growth in recent years. Among the natural compounds that produce beneficial effects on human health, polyphenols have shown potential therapeutic applications in cancer due to their protective functions in plants, their use as food additives, and their excellent antioxidant properties. The possibility of combining conventional drugs-which are usually more aggressive than natural compounds-with polyphenols offers very valuable advantages such as the building of more efficient anticancer therapies with less side effects on human health. This review shows a wide range of trials in which polyphenolic compounds play a crucial role as anticancer medicines alone or in combination with other drugs at different stages of cancer: cancer initiation, promotion, and growth or progression. Moreover, the future directions in applications of various polyphenols in cancer therapy are emphasized.


Assuntos
Antineoplásicos/uso terapêutico , Flavonoides/uso terapêutico , Neoplasias/tratamento farmacológico , Polifenóis/uso terapêutico , Sinergismo Farmacológico , Tratamento Farmacológico , Humanos , Compostos Fitoquímicos/uso terapêutico
6.
Molecules ; 25(7)2020 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-32244513

RESUMO

The current rapid advancement of numerous nanotechnology tools is being employed in treatment of many terminal diseases such as cancer. Nanocapsules (NCs) containing an anti-cancer drug offer a very promising alternative to conventional treatments, mostly due to their targeted delivery and precise action, and thereby they can be used in distinct applications: as biosensors or in medical imaging, allowing for cancer detection as well as agents/carriers in targeted drug delivery. The possibility of using different systems-inorganic nanoparticles, dendrimers, proteins, polymeric micelles, liposomes, carbon nanotubes (CNTs), quantum dots (QDs), biopolymeric nanoparticles and their combinations-offers multiple benefits to early cancer detection as well as controlled drug delivery to specific locations. This review focused on the key and recent progress in the encapsulation of anticancer drugs that include methods of preparation, drug loading and drug release mechanism on the presented nanosystems. Furthermore, the future directions in applications of various nanoparticles are highlighted.


Assuntos
Antineoplásicos/química , Antineoplásicos/farmacologia , Composição de Medicamentos , Nanomedicina Teranóstica , Animais , Biopolímeros/química , Portadores de Fármacos/química , Sistemas de Liberação de Medicamentos , Humanos , Nanocápsulas/química , Nanocápsulas/ultraestrutura , Nanopartículas/química , Nanopartículas/ultraestrutura
7.
J Psychopharmacol ; 33(7): 822-830, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-31013455

RESUMO

BACKGROUND: Two major constituents of cannabis are Δ9-tetrahydrocannabinol (THC) and cannabidiol (CBD). THC is the main psychoactive component; CBD may buffer the user against the harmful effects of THC. AIMS: We examined the effects of two strains of cannabis and placebo on the human brain's resting-state networks using fMRI. METHODS: Seventeen healthy volunteers (experienced with cannabis, but not regular users) underwent three drug treatments and scanning sessions. Treatments were cannabis containing THC (Cann-CBD; 8 mg THC), cannabis containing THC with CBD (Cann+CBD; 8 mg THC + 10 mg CBD), and matched placebo cannabis. Seed-based resting-state functional connectivity analyses were performed on three brain networks: the default mode (DMN; defined by positive connectivity with the posterior cingulate cortex: PCC+), executive control (ECN; defined by negative connectivity with the posterior cingulate cortex: PCC-) and salience (SAL; defined by positive connectivity with the anterior insula: AI+) network. RESULTS: Reductions in functional connectivity (relative to placebo) were seen in the DMN (PCC+) and SAL (AI+) networks for both strains of cannabis, with spatially dissociable effects. Across the entire salience network (AI+), Cann-CBD reduced connectivity relative to Cann+CBD. The PCC in the DMN was specifically disrupted by Cann-CBD, and this effect correlated with subjective drug effects, including feeling 'stoned' and 'high'. CONCLUSIONS: THC disrupts the DMN, and the PCC is a key brain region involved in the subjective experience of THC intoxication. CBD restores disruption of the salience network by THC, which may explain its potential to treat disorders of salience such as psychosis and addiction.


Assuntos
Canabidiol/farmacologia , Dronabinol/farmacologia , Fumar Maconha/psicologia , Adulto , Encéfalo/diagnóstico por imagem , Encéfalo/efeitos dos fármacos , Estudos Cross-Over , Método Duplo-Cego , Feminino , Alucinógenos/farmacologia , Humanos , Imageamento por Ressonância Magnética , Masculino , Adulto Jovem
8.
Neuroimage ; 176: 404-416, 2018 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-29738911

RESUMO

Accelerated functional Magnetic Resonance Imaging (fMRI) with 'multiband' protocols is now relatively widespread. These protocols can be used to dramatically reduce the repetition time (TR) and produce a time-series sampled at a higher temporal resolution, which may produce benefits in the statistical methods typically used to analyse fMRI data. We tested the effects of higher temporal resolutions for fMRI on statistical outcome measures in a comprehensive manner on two different MRI scanner platforms. Spatial resolution was maintained at a constant of 3 mm isotropic voxels, and an in-plane acceleration factor of 2 was used for all experiments. Experiment 1 tested a range of acceleration factors (1-6) against a standard EPI protocol on a single composite task that mapped a number of basic sensory, motor, and cognitive networks. Experiment 2 compared the standard protocol with acceleration factors of 2 and 3 on both resting-state and two task paradigms (an N-back task, and faces/places task), with a number of different analysis approaches. Results from experiment 1 showed modest but relatively inconsistent effects of the higher sampling rate on statistical outcome measures. Experiment 2 showed strong benefits of the multiband protocols on results derived from resting-state data, but more varied effects on results from the task paradigms. Notably, the multiband protocols were superior when Multi-Voxel Pattern Analysis was used to interrogate the faces/places data, but showed less benefit in conventional General Linear Model analyses of the same data. In general, ROI-derived measures of statistical effects benefitted only modestly from higher sampling resolution, with greater effects seen when using a measure of the top range of statistical values. Across both experiments, results from the two scanner platforms were broadly comparable. The statistical benefits of high temporal resolution fMRI with multiband protocols may therefore depend on a number of factors, including the nature of the investigation (resting-state vs. task-based), the experimental design, the particular statistical outcome measure, and the type of analysis used.


Assuntos
Córtex Cerebral/fisiologia , Interpretação Estatística de Dados , Neuroimagem Funcional/normas , Processamento de Imagem Assistida por Computador/normas , Imageamento por Ressonância Magnética/normas , Projetos de Pesquisa , Adulto , Córtex Cerebral/diagnóstico por imagem , Imagem Ecoplanar/métodos , Imagem Ecoplanar/normas , Feminino , Neuroimagem Funcional/métodos , Humanos , Processamento de Imagem Assistida por Computador/métodos , Imageamento por Ressonância Magnética/métodos , Masculino , Memória de Curto Prazo/fisiologia , Reconhecimento Visual de Modelos/fisiologia , Adulto Jovem
9.
Sci Rep ; 7(1): 11352, 2017 09 12.
Artigo em Inglês | MEDLINE | ID: mdl-28900267

RESUMO

Cigarette addiction is driven partly by the physiological effects of nicotine, but also by the distinctive sensory and behavioural aspects of smoking, and understanding the neural effects of such processes is vital. There are many practical difficulties associated with subjects smoking in the modern neuroscientific laboratory environment, however electronic cigarettes obviate many of these issues, and provide a close simulation of smoking tobacco cigarettes. We have examined the neural effects of 'smoking' electronic cigarettes with concurrent functional Magnetic Resonance Imaging (fMRI). The results demonstrate the feasibility of using these devices in the MRI environment, and show brain activation in a network of cortical (motor cortex, insula, cingulate, amygdala) and sub-cortical (putamen, thalamus, globus pallidus, cerebellum) regions. Concomitant relative deactivations were seen in the ventral striatum and orbitofrontal cortex. These results reveal the brain processes involved in (simulated) smoking for the first time, and validate a novel approach to the study of smoking, and addiction more generally.


Assuntos
Comportamento Aditivo/diagnóstico , Comportamento Aditivo/etiologia , Mapeamento Encefálico , Encéfalo/fisiopatologia , Fumar , Adulto , Feminino , Humanos , Processamento de Imagem Assistida por Computador , Imageamento por Ressonância Magnética , Masculino
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