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1.
Expert Opin Drug Metab Toxicol ; 20(4): 181-195, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38480460

RESUMO

INTRODUCTION: Pharmacokinetic parameters assessment is a critical aspect of drug discovery and development, yet challenges persist due to limited training data. Despite advancements in machine learning and in-silico predictions, scarcity of data hampers accurate prediction of drug candidates' pharmacokinetic properties. AREAS COVERED: The study highlights current developments in human pharmacokinetic prediction, talks about attempts to apply synthetic approaches for molecular design, and searches several databases, including Scopus, PubMed, Web of Science, and Google Scholar. The article stresses importance of rigorous analysis of machine learning model performance in assessing progress and explores molecular modeling (MM) techniques, descriptors, and mathematical approaches. Transitioning to clinical drug development, article highlights AI (Artificial Intelligence) based computer models optimizing trial design, patient selection, dosing strategies, and biomarker identification. In-silico models, including molecular interactomes and virtual patients, predict drug performance across diverse profiles, underlining the need to align model results with clinical studies for reliability. Specialized training for human specialists in navigating predictive models is deemed critical. Pharmacogenomics, integral to personalized medicine, utilizes predictive modeling to anticipate patient responses, contributing to more efficient healthcare system. Challenges in realizing potential of predictive modeling, including ethical considerations and data privacy concerns, are acknowledged. EXPERT OPINION: AI models are crucial in drug development, optimizing trials, patient selection, dosing, and biomarker identification and hold promise for streamlining clinical investigations.


Assuntos
Inteligência Artificial , Simulação por Computador , Desenvolvimento de Medicamentos , Aprendizado de Máquina , Farmacocinética , Medicina de Precisão , Humanos , Desenho de Fármacos , Desenvolvimento de Medicamentos/métodos , Descoberta de Drogas/métodos , Modelos Biológicos , Modelos Moleculares , Preparações Farmacêuticas/metabolismo , Preparações Farmacêuticas/administração & dosagem , Farmacogenética , Medicina de Precisão/métodos , Reprodutibilidade dos Testes
2.
Environ Sci Pollut Res Int ; 30(19): 54385-54406, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36961636

RESUMO

Polysaccharides that are naturally sourced have enormous promise as wound dressings, due to their wider availability and reasonable cost and good biocompatibility. Furthermore, nanosilver extensively applied in wound treatment is attributed to its broad spectrum of antimicrobial effects and lesser drug resistance. Consequently, wound dressings in corporating nanosilver have attracted wide-scale interest in wound healing, and nanosilver-functionalized polysaccharide-based wound dressings present an affordable option for healing of chronic wounds. This review encompasses preparation methods, classification, and antibacterial performances of nanosilver wound dressings. The prospective research arenas of nanosilver-based wound polysaccharide dressings are also elaborated. The review attempts to include a summary of the most recent advancements in silver nanotechnology as well as guidance for the investigation of nanosilver-functionalized polysaccharide-based wound dressings.


Assuntos
Bandagens , Prata , Estudos Prospectivos , Polissacarídeos
3.
Disaster Med Public Health Prep ; 17: e362, 2023 01 24.
Artigo em Inglês | MEDLINE | ID: mdl-36691775

RESUMO

India has already passed through 2 waves of the coronavirus disease (COVID-19) pandemic losing many lives. The reason for losing lives may be due to the unpreparedness of the health care system of India for this unprecedented pandemic. To assess the government's preparedness, an institutional-based cross-sectional prospective survey was conducted among the adult population of selected states in India. A self-administered 30-item questionnaire divided into 5 sections (demography of the participants, steps to create awareness, prevent spread of infection, handle the emergency, and prognosis) was distributed online through Google Forms. The responses were collected in an Excel file. SPSS software was used to perform the descriptive statistics and analysis of variance (ANOVA). Nearly a quarter of the participants "strongly disagree"/"disagree" about the government's preparedness for the third wave. Considering their perception, it cannot be assured that the government is well prepared to handle the emergency. So, the government must maintain emergency funding and develop a health infrastructure. The government should take steps to reduce social stigma, prevent spreading of unscientific propagation, and make people aware of the World Health Organization (WHO) as the reliable source of information for health emergencies to avoid a human crisis in the future.


Assuntos
COVID-19 , SARS-CoV-2 , Adulto , Humanos , COVID-19/epidemiologia , COVID-19/prevenção & controle , Estudos Transversais , Estudos Prospectivos , Opinião Pública , Governo , Índia/epidemiologia
4.
Artigo em Inglês | MEDLINE | ID: mdl-35796452

RESUMO

BACKGROUND: Parkinson's disease is the second most common neurological ailment. It is also known that it affects practically all other brain components, although only gradually. Animal models are mostly used to test the efficacy of treatment against a specific enzyme and to aid in the creation of a new drug dose. OBJECTIVE: The purpose of this review paper is to highlight in vivo Parkinson's disease screening approaches, as well as the mechanism of action of each drug involved in Parkinson's disease development, and discuss the limitations of each model. In addition, also sheds light on Parkinson's disease genetic models. METHOD: The data for the publication was gathered from databases such as PubMed, Bentham Science, Elsevier, Springer Nature, Wiley, and Research Gate after a thorough examination of diverse research findings linked to Parkinson's disease and its screening models. RESULT: Each chemical or drug has a unique mechanism for causing disease, whether it's through the production of reactive oxygen species or the blockage of the dopamine receptor. Almost every symptom of the disease, whether physical or behavioral, is covered by each of the constructed models' unique set of indicators and symptoms. CONCLUSION: Animal models are typically used to assess a medicine's activity against a specific enzyme and to aid in the creation of a new drug dose. The process, restrictions, and mechanisms interfering with the screening, as well as the level of animal suffering, must all be thoroughly reviewed before any model for screening for Parkinson's disease can be implemented.

5.
Curr Drug Deliv ; 12(5): 533-43, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25760869

RESUMO

The aim of the present research work is to develop carbo-protein polymeric complex based sustain release microspheres of losartan potassium and investigate the ability of this dosage form to improve the flowability, compressibility and tableting properties of losartan potassium. The influence of silk sericin, alginate and its blend on various physicochemical parameters and in vitro drug release pattern were studied to optimize the concentration of polymeric blend required for 12 h. sustain release. Optimized batch was subjected to different flowability, compressibility and tableting properties studies to observe the effects of carbo-protein microspheres on flow properties. Results indicated that the concentration of sericin was found to be the main influential factor for prolonged drug release. Different micromeritic studies revealed that the poor flowability and compressibility properties of pure losartan potassium were significantly improved by this algino-sericin microspheric dosage form. Research findings also revealed that plasticity, die filling behavior and tableting properties of the pure drug were significantly improved by this microsphere formulation. So these prospective results concluded that carbo-protein polymeric microspheres helps to sustain the drug release for prolong hours as well as improve the flowability, compressibility and tableting properties of losartan potassium.


Assuntos
Alginatos/química , Liberação Controlada de Fármacos , Losartan/administração & dosagem , Losartan/química , Microesferas , Sericinas/química , Ácido Glucurônico/química , Ácidos Hexurônicos/química , Losartan/análise , Tamanho da Partícula , Propriedades de Superfície , Comprimidos , Fatores de Tempo
6.
Curr Drug Deliv ; 9(5): 495-505, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22520070

RESUMO

The aim of this present research work was to prepare and evaluate alginate microspheres of aceclofenac by ionic gelation method for targeting the drug release in intestinal region and decrease distinct tissue protection in the stomach. This method offers to prepare microspheres which are important in controlling the release rate and the absorption of aceclofenac from the intestinal region. Variation in polymer concentration was studied systemically for their influence on the encapsulation efficacy, particle size and in vitro drug release. The enteric nature of the microspheres showed very less amount of drug released in acidic medium. The mucoadhesion property was strongly dependent on the pH of the medium and the polymer concentration in the formulations. In vitro drug release study proposed a mixed drug release mechanism, partially involving the sphere matrix disintegration and drug diffusion of the microspheres. Holm-Sidak multiple comparison analysis suggested a significant difference in measured t50% values among all the microsphere formulations. In vivo studies revealed that the anti-inflammatory effect induced by the aceclofenac loaded alginate microspheres was significantly high and prolonged than that induced by the pure aceclofenac. So, this aceclofenac loaded alginate microspheres exhibited promising properties to improve the patient compliance by controlling and prolonging the systemic absorption of aceclofenac along with a distinct tissue protection in the stomach.


Assuntos
Anti-Inflamatórios não Esteroides/administração & dosagem , Diclofenaco/análogos & derivados , Microesferas , Adesividade , Alginatos/química , Animais , Anti-Inflamatórios não Esteroides/química , Cloreto de Cálcio/química , Carragenina , Diclofenaco/administração & dosagem , Diclofenaco/química , Composição de Medicamentos , Estabilidade de Medicamentos , Edema/induzido quimicamente , Edema/tratamento farmacológico , Ácido Glucurônico/química , Cabras , Ácidos Hexurônicos/química , Mucosa Intestinal/química , Cinética , Masculino , Microscopia Eletrônica de Varredura , Tamanho da Partícula , Polímeros/química , Ratos , Ratos Wistar , Espectroscopia de Infravermelho com Transformada de Fourier
7.
Acta Pharm ; 60(3): 255-66, 2010 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21134861

RESUMO

Ionotropic gelation was used to entrap aceclofenac into algino-pectinate bioadhesive microspheres as a potential drug carrier for the oral delivery of this anti-inflammatory drug. Microspheres were investigated in vitro for possible sustained drug release and their use in vivo as a gastroprotective system for aceclofenac. Polymer concentration and polymer/drug ratio were analyzed for their influence on microsphere properties. The microspheres exhibited good bioadhesive property and showed high drug entrapment efficiency. Drug release profiles exhibited faster release of aceclofenac from alginate microspheres whereas algino-pectinate microspheres showed prolonged release. Dunnet's multiple comparison analysis suggested a significant difference in percent inhibition of paw edema when the optimized formulation was compared to pure drug. It was concluded that the algino-pectinate bioadhesive formulations exhibit promising properties of a sustained release form for aceclofenac and that they provide distinct tissue protection in the stomach.


Assuntos
Alginatos/química , Anti-Inflamatórios não Esteroides/administração & dosagem , Diclofenaco/análogos & derivados , Pectinas/química , Adesividade , Administração Oral , Animais , Anti-Inflamatórios não Esteroides/efeitos adversos , Anti-Inflamatórios não Esteroides/farmacologia , Preparações de Ação Retardada , Diclofenaco/administração & dosagem , Diclofenaco/efeitos adversos , Diclofenaco/farmacologia , Modelos Animais de Doenças , Portadores de Fármacos/química , Edema/tratamento farmacológico , Edema/fisiopatologia , Ácido Glucurônico/química , Ácidos Hexurônicos/química , Inflamação/tratamento farmacológico , Inflamação/fisiopatologia , Masculino , Microesferas , Ratos , Ratos Wistar , Estômago/efeitos dos fármacos
8.
Acta Pharm ; 59(3): 313-23, 2009 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-19819827

RESUMO

The purpose of the present research work was to observe the effects of drug solubility on their release kinetics of water soluble verpamil hydrochloride and insoluble aceclofenac from hydrophilic polymer based matrix formulations. Matrix formulations were prepared by the direct compression method. The formulations were evaluated for various physical parameters. Along with the dynamics of water uptake and erosion, SEM and in vitro drug release of the tablets were studied. Applying an exponential equation, it was found that the kinetics of soluble drug release followed anomalous non-Fickian diffusion transport whereas insoluble drug showed zero-order release. SEM study showed pore formation on the tablet surface that differed depending on drug solubility. t-Test pointed to a significant difference in amount of both drugs released due to the difference in solubility. Solubility of the drug effects kinetics and the mechanism of drug release.


Assuntos
Metilcelulose/análogos & derivados , Água/metabolismo , Química Farmacêutica/métodos , Preparações de Ação Retardada , Diclofenaco/análogos & derivados , Diclofenaco/química , Diclofenaco/farmacocinética , Derivados da Hipromelose , Metilcelulose/química , Metilcelulose/farmacocinética , Solubilidade , Comprimidos , Verapamil/química , Verapamil/farmacocinética , Água/química
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