Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 63
Filtrar
1.
Mol Biol Rep ; 51(1): 835, 2024 Jul 23.
Artigo em Inglês | MEDLINE | ID: mdl-39042283

RESUMO

Glucagon-like Peptide-1 (GLP-1) receptor agonists (GLP-1RAs) emerged as a primary treatment for type-2 diabetes mellitus (T2DM), however, their multifaceted effects on various target organs beyond glycemic control opened a new era of treatment. We conducted a comprehensive literature search using databases including Scopus, Google Scholar, PubMed, and the Cochrane Library to identify clinical, in-vivo, and in-vitro studies focusing on the diverse effects of GLP-1 receptor agonists. Eligible studies were selected based on their relevance to the varied roles of GLP-1RAs in T2DM management and their impact on other physiological functions. Numerous studies have reported the efficacy of GLP-1RAs in improving outcomes in T2DM, with demonstrated benefits including glucose-dependent insulinotropic actions, modulation of insulin signaling pathways, and reductions in glycemic excursions. Additionally, GLP-1 receptors are expressed in various tissues and organs, suggesting their widespread physiological functions beyond glycemic control potentially include neuroprotective, anti-inflammatory, cardioprotective, and metabolic benefits. However, further scientific studies are still underway to maximize the benefits of GLP-1RAs and to discover additional roles in improving health benefits. This article sought to review not only the actions of GLP1RAs in the treatment of T2DM but also explore its effects on potential targets in other disorders.


Assuntos
Diabetes Mellitus Tipo 2 , Receptor do Peptídeo Semelhante ao Glucagon 1 , Hipoglicemiantes , Humanos , Receptor do Peptídeo Semelhante ao Glucagon 1/agonistas , Receptor do Peptídeo Semelhante ao Glucagon 1/metabolismo , Diabetes Mellitus Tipo 2/tratamento farmacológico , Diabetes Mellitus Tipo 2/metabolismo , Hipoglicemiantes/farmacologia , Hipoglicemiantes/uso terapêutico , Animais , Transdução de Sinais/efeitos dos fármacos , Peptídeo 1 Semelhante ao Glucagon/metabolismo , Insulina/metabolismo , Glicemia/metabolismo , Glicemia/efeitos dos fármacos , Agonistas do Receptor do Peptídeo 1 Semelhante ao Glucagon
2.
Molecules ; 29(13)2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38999083

RESUMO

The delivery of therapeutic agents faces significant hurdles posed by the endo-lysosomal pathway, a bottleneck that hampers clinical effectiveness. This comprehensive review addresses the urgent need to enhance cellular delivery mechanisms to overcome these obstacles. It focuses on the potential of smart nanomaterials, delving into their unique characteristics and mechanisms in detail. Special attention is given to their ability to strategically evade endosomal entrapment, thereby enhancing therapeutic efficacy. The manuscript thoroughly examines assays crucial for understanding endosomal escape and cellular uptake dynamics. By analyzing various assessment methods, we offer nuanced insights into these investigative approaches' multifaceted aspects. We meticulously analyze the use of smart nanocarriers, exploring diverse mechanisms such as pore formation, proton sponge effects, membrane destabilization, photochemical disruption, and the strategic use of endosomal escape agents. Each mechanism's effectiveness and potential application in mitigating endosomal entrapment are scrutinized. This paper provides a critical overview of the current landscape, emphasizing the need for advanced delivery systems to navigate the complexities of cellular uptake. Importantly, it underscores the transformative role of smart nanomaterials in revolutionizing cellular delivery strategies, leading to a paradigm shift towards improved therapeutic outcomes.


Assuntos
Endossomos , Lisossomos , Lisossomos/metabolismo , Humanos , Endossomos/metabolismo , Sistemas de Liberação de Medicamentos , Portadores de Fármacos/química , Nanoestruturas/química , Animais , Nanopartículas/química
3.
Saudi Pharm J ; 32(4): 102002, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38439951

RESUMO

Pectin hydrogels have emerged as a highly promising medium for the controlled release of pharmaceuticals in the dynamic field of drug delivery. The present review sheds light on the broad range of applications and potential of pectin-based hydrogels in pharmaceutical formulations. Pectin, as a biopolymer, is a versatile candidate for various drug delivery systems because of its wide range of properties and characteristics. The information provided on formulation strategies and crosslinking techniques provides researchers with tools to improve drug entrapment and controlled release. Furthermore, this review provides a more in-depth understanding of the complex factors influencing drug release from pectin hydrogels, such as the impact of environmental conditions and drug-specific characteristics. Pectin hydrogels demonstrate adaptability across diverse domains, ranging from applications in oral and transdermal drug delivery to contributions in wound healing, tissue engineering, and ongoing clinical trials. While standardization and regulatory compliance remain significant challenges, the future of pectin hydrogels appears to be bright, opening up new possibilities for advanced drug delivery systems.

4.
AAPS PharmSciTech ; 24(8): 253, 2023 Dec 07.
Artigo em Inglês | MEDLINE | ID: mdl-38062314

RESUMO

Low aqueous solubility of drug candidates is an ongoing challenge and pharmaceutical manufacturers pay close attention to amorphization (AMORP) technology to improve the solubility of drugs that dissolve poorly. Amorphous drug typically exhibits much higher apparent solubility than their crystalline form due to high energy state that enable them to produce a supersaturated state in the gastrointestinal tract and thereby improve bioavailability. The stability and augmented solubility in co-amorphous (COA) formulations is influenced by molecular interactions. COA are excellent carriers-based drug delivery systems for biopharmaceutical classification system (BCS) class II and class IV drugs. The three important critical quality attributes, such as co-formability, physical stability, and dissolution performance, are necessary to illustrate the COA systems. New amorphous-stabilized carriers-based fabrication techniques that improve drug loading and degree of AMORP have been the focus of emerging AMORP technology. Numerous low-molecular-weight compounds, particularly amino acids such as glutamic acid, arginine, isoleucine, leucine, valine, alanine, glycine, etc., have been employed as potential co-formers. The review focus on the prevailing drug AMORP strategies used in pharmaceutical research, including in situ AMORP, COA systems, and mesoporous particle-based methods. Moreover, brief characterization techniques and the application of the different amino acids in stabilization and solubility improvements have been related.


Assuntos
Aminoácidos , Arginina , Aminoácidos/química , Preparações Farmacêuticas/química , Estabilidade de Medicamentos , Composição de Medicamentos/métodos , Arginina/química , Solubilidade
5.
AAPS PharmSciTech ; 25(1): 6, 2023 Dec 21.
Artigo em Inglês | MEDLINE | ID: mdl-38129697

RESUMO

Nanoporous materials are categorized as microporous (pore sizes 0.2-2 nm), mesoporous (pore sizes 2-50 nm), and macroporous (pore sizes 50-1000 nm). Mesoporous silica (MS) has gained a significant interest due to its notable characteristics, including organized pore networks, specific surface areas, and the ability to be integrated in a variety of morphologies. Recently, MS has been widely accepted by range of manufacturer and as drug carrier. Moreover, silica nanoparticles containing mesopores, also known as mesoporous silica nanoparticles (MSNs), have attracted widespread attention in additive manufacturing (AM). AM commonly known as three-dimensional printing is the formalized rapid prototyping (RP) technology. AM techniques, in comparison to conventional methods, aid in reducing the necessity for tooling and allow versatility in product and design customization. There are generally several types of AM processes reported including VAT polymerization (VP), powder bed fusion (PBF), sheet lamination (SL), material extrusion (ME), binder jetting (BJ), direct energy deposition (DED), and material jetting (MJ). Furthermore, AM techniques are utilized in fabrication of various classified fields such as architectural modeling, fuel cell manufacturing, lightweight machines, medical, and fabrication of drug delivery systems. The review concisely elaborates on applications of mesoporous silica as versatile material in fabrication of various AM-based pharmaceutical products with an elaboration on various AM techniques to reduce the knowledge gap.


Assuntos
Nanopartículas , Dióxido de Silício , Impressão Tridimensional , Portadores de Fármacos , Sistemas de Liberação de Medicamentos/métodos
6.
Ther Deliv ; 15(9): 667-683, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39101438

RESUMO

Aim: This study focuses on the development of a Caspofungin liposome for efficient ocular delivery by enhancing corneal penetration.Method: Quality by design (QbD) approach was adopted to identify critical factors that influence final liposomal formulation. The liposome developed using thin film hydration after optimization was subjected to characterization for physicochemical properties, irritation potential and corneal uptake.Results: The numerical optimization suggests an optimal formulation with a desirability value of 0.706, using CQAs as optimization goals with 95% prediction intervals. The optimized formulation showed no signs of irritation potential along with observation of significant corneal permeation.Conclusion: The liposomal formulation increased the permeability of Caspofungin, which could enhance the efficacy for the treatment of conditions, like fungal keratitis.


[Box: see text].


Assuntos
Administração Oftálmica , Antifúngicos , Caspofungina , Córnea , Lipopeptídeos , Lipossomos , Caspofungina/administração & dosagem , Caspofungina/farmacocinética , Animais , Antifúngicos/administração & dosagem , Antifúngicos/farmacocinética , Antifúngicos/química , Córnea/metabolismo , Córnea/efeitos dos fármacos , Lipopeptídeos/administração & dosagem , Lipopeptídeos/química , Lipopeptídeos/farmacocinética , Equinocandinas/administração & dosagem , Equinocandinas/farmacocinética , Equinocandinas/química , Permeabilidade , Química Farmacêutica/métodos , Coelhos , Sistemas de Liberação de Medicamentos/métodos
7.
Pharm Nanotechnol ; 2024 Mar 08.
Artigo em Inglês | MEDLINE | ID: mdl-38465435

RESUMO

Due to the complexities of the eye's anatomy and physiology, achieving targeted drug delivery with minimal harm to healthy eye tissues has proven to be difficult. The focus of the review is on the potential of lipid and polymer micelle-based drug delivery systems, specifically nanomicelles, to overcome these challenges and improve the absorption of insoluble drugs. Nanomicelles offer several advantages, such as enhanced drug release kinetics, increased drug incorporation, and improved formulation of hydrophobic medicines. The review provides insights into various excipients, preparation methods, and evaluation techniques used in nanomicellar-based drug delivery systems. Furthermore, the review highlights current research and patents related to nanomicelles in ocular drug delivery, suggesting growing interest and potential for future developments in this field. Nanomicelles present a promising approach that may revolutionize ocular drug delivery and open new possibilities for treating various ocular diseases while minimizing adverse effects on healthy eye tissues.

8.
Curr Med Chem ; 2024 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-38685773

RESUMO

The review explores the enhancement of therapeutic efficacy through the innovative use of polymeric molecular envelope technology (MET). It delves into the diverse methods employed to achieve superior therapeutic outcomes, shedding light on strategies for improving drug delivery and bioavailability. MET is a promising approach to improve the solubility and bioavailability of poorly water-soluble drugs. This technology involves the use of a molecular envelope of cyclic oligosaccharides called cyclodextrins, which is a supramolecular assembly of amphiphilic molecules that encapsulate and solubilize hydrophobic drug molecules. This can further improve the solubility of the drug by increasing its surface area and reducing its crystallinity. Moreover, MET also protects the drug from degradation and enhances its permeability across biological membranes. Furthermore, the review thoroughly examines the MET, including its methods of preparation, applications in drug encapsulation, and the evaluation of its potential to optimize therapeutic outcomes. By adopting current research and key findings, this review provides valuable insights into the transformative potential of polymeric molecular envelope technology for advancing the field of therapeutics.

9.
J Biomed Mater Res A ; 112(11): 1860-1872, 2024 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38721841

RESUMO

The worldwide health burden of colorectal cancer is still substantial, and traditional chemotherapeutic drugs sometimes have poor selectivity, which can result in systemic toxicity and unfavorable side effects. For colon-specific medication delivery, bioengineered carbohydrate polymers have shown promise as carriers. They may enhance treatment effectiveness while minimizing systemic exposure and associated side effects. The unique properties of these manufactured or naturally occurring biopolymers, such as hyaluronic acid, chitosan, alginate, and pectin, enable targeted medicine release. These qualities can be changed to meet the physiological needs of the colon. In the context of colorectal cancer therapy, this article provides a comprehensive overview of current developments and prospective future directions in the field of bioengineered carbohydrate polymer synthesis for colon-specific drug delivery. We discuss numerous techniques for achieving colon-targeted drug release, including enzyme-sensitive polymers, pH-responsive devices, and microbiota-activated processes. To increase tumor selectivity and cellular uptake, we also examine the inclusion of active targeting approaches, such as conjugating specific ligands. Furthermore, we discuss the potential of combination treatment strategies, which use the coadministration of numerous therapeutic medications to target multiple pathways implicated in cancer growth and address drug resistance mechanisms. We address recent biomimetic advances that potentially improve the biocompatibility, cellular uptake, and tumor penetration of carbohydrate polymer-based nanocarriers. These methods involve protein corona engineering and cell membrane coating. Furthermore, we look at the possibility of intelligent and sensitive systems that may adjust their behaviors in response to certain inputs or feedback loops, allowing for precise and regulated drug distribution.


Assuntos
Carboidratos , Colo , Humanos , Animais , Colo/metabolismo , Colo/efeitos dos fármacos , Carboidratos/química , Polímeros/química , Liberação Controlada de Fármacos , Bioengenharia , Sistemas de Liberação de Medicamentos , Portadores de Fármacos/química , Neoplasias Colorretais/tratamento farmacológico
10.
Curr Med Chem ; 2024 Aug 22.
Artigo em Inglês | MEDLINE | ID: mdl-39177136

RESUMO

A notable breakthrough in the treatment of colon cancer involves the utilisation of a cutting-edge drug delivery technology known as biosurfactant-derived nanomicelles. These nanomicelles, composed of natural biosurfactant molecules, possess the distinct capability to enclose pharmaceuticals or genetic material, such as DNA, siRNA, or mRNA, within spherical formations. With a size ranging from 10 to 100 nanometers, these nanomicelles exhibit precision targeting capabilities towards colon cancer cells, hence minimising the occurrence of side effects typically associated with treatment. Upon being specifically targeted, the nanomicelles liberate their cargo into cancer cells, resulting in enhanced therapy efficacy. This novel strategy utilises the specific attributes of the tumour microenvironment to administer precise and focused treatment. These nanomicelles improve the absorption by cells and reduce harm to healthy tissues by imitating important nutrients or utilising compounds that specifically target tumours. Furthermore, the incorporation of stimuli-responsive components allows for regulated medication release in reaction to the acidic environment seen in tumours. The review focuses on examining the use of biosurfactants and natural peptides in nanomicellar carriers as ways to fight against colon cancer. Folate-coated nanomicelles incorporating curcumin facilitate precise gene delivery, while the partnership of biosurfactants, such as surfactin from Bacillus subtilis and natural peptides, enables the transportation of particular cyclopeptides into the tumour network. Peptides, similar to bombesin, direct nanomicelles to specific places, while peptides based on curcumin control the release of medicinal substances. While preclinical investigations demonstrate promise, obstacles remain in formulation and regulatory issues. However, biosurfactant-based nanomicelles, particularly folate-coated carriers loaded with curcumin, show tremendous potential in overcoming biological barriers and delivering medicines efficiently to colon cancer cells.

11.
ACS Pharmacol Transl Sci ; 7(8): 2215-2236, 2024 Aug 09.
Artigo em Inglês | MEDLINE | ID: mdl-39144553

RESUMO

This Review explores how tumor-associated regulatory cells (Tregs) affect cancer immunotherapy. It shows how Tregs play a role in keeping the immune system in check, how cancers grow, and how well immunotherapy work. Tregs use many ways to suppress the immune system, and these ways are affected by the tumor microenvironment (TME). New approaches to cancer therapy are showing promise, such as targeting Treg checkpoint receptors precisely and using Fc-engineered antibodies. It is important to tailor treatments to each patient's TME in order to provide personalized care. Understanding Treg biology is essential for creating effective cancer treatments and improving the long-term outcomes of immunotherapy.

12.
Z Naturforsch C J Biosci ; 79(5-6): 107-124, 2024 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-38721838

RESUMO

Chitosan (CT), a natural, cationic, chemically stable molecule, biocompatible, biodegradable, nontoxic, polysaccharide derived from the deacetylation of chitin, has very uniquely surfaced as a material of promise for drug delivery and biomedical applications. For the oral, ocular, cutaneous, pulmonary, and nose-to-brain routes, CT-coated nanoparticles (CTCNPs) have numerous advantages, consisting of improved controlled drug release, physicochemical stability, improved cell and tissue interactions, and increased bioavailability and efficacy of the active ingredient. CTCNPs have a broad range of therapeutic properties including anticancer, antiviral, antifungal, anti-inflammatory, antibacterial properties, treating neurological disorders, and other diseases. This has led to substantial research into the many potential uses of CT as a drug delivery vehicle. CT has also been employed in a wide range of biomedical processes, including bone and cartilage tissue regeneration, ocular tissue regeneration, periodontal tissue regeneration, heart tissue regeneration, and wound healing. Additionally, CT has been used in cosmeceutical, bioimaging, immunization, and gene transfer applications. CT exhibits a number of biological activities, which are the basis for its remarkable potential for use as a drug delivery vehicle, and these activities are covered in detail in this article. The alterations applied to CT to obtain the necessary properties have been described.


Assuntos
Quitosana , Estado Terminal , Sistemas de Liberação de Medicamentos , Nanopartículas , Quitosana/química , Humanos , Nanopartículas/química , Animais , Portadores de Fármacos/química , Lipossomos
13.
Curr Med Chem ; 2024 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-39021173

RESUMO

To overcome the limits of traditional antibiotic medications, novel approaches are needed to combat the growing global epidemic of Multidrug-resistant (MDR) infections. As drug-resistant bacteria develop, the importance of innovative antimicrobial methods is underscored by antibiotic abuse and misuse. The global threat of MDR microorganisms is increasing, which calls for a coordinated global response. Lipid Nanoparticles (LNPs) possess several characteristics that make them attractive choices for managing multidrug resistant (MDR) infections, as well as potential delivery systems for antimicrobial agents. Thus, LNPs improve drug solubility, stability, and targeted delivery, thereby mitigating the drawbacks of conventional antibiotic therapy. Several characteristics of LNPs, which stop MDR bacteria from developing resistance mechanisms, serve as guidelines for precision medicine. It presents a powerful approach for combating the growing concern of MDR bacteria by increasing Anti-Microbial Peptides (AMPs) bioavailability and targeting distribution to bacterial cells. LNPs have the potential to redefine antibacterial treatments for MDR illnesses in the context of this study. Further, it discusses LNP use in larger applications, such as fighting Anti-Microbial Resistance (AMR) and MDR. A complete understanding of the unique features, many uses, and importance of collaborative efforts to overcome the global challenge of antibiotic resistance are also conveyed in the study.

14.
Pharmaceuticals (Basel) ; 17(3)2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-38543115

RESUMO

In recent years, due to their distinctive and adaptable therapeutic effects, many natural bioactive compounds have been commonly used to treat diseases. Their limited solubility, low bioavailability, inadequate gastrointestinal tract stability, high metabolic rate, and shorter duration of action limited their pharmaceutical applications. However, those can be improved using nanotechnology to create various drug delivery systems, including lipid-based nanoparticles, to adjust the compounds' physicochemical properties and pharmacokinetic profile. Because of the enormous technical advancements made in the fundamental sciences and the physical and chemical manipulation of individual atoms and molecules, the subject of nanotechnology has experienced revolutionary growth. By fabricating certain functionalized particles, nanotechnology opens an innovative horizon in research and development for overcoming restrictions, including traditional medication administration systems. Nanotechnology-driven bioactive compounds are certain to have a high impact and clinical value for current and future uses. Lipid-based nanotechnologies were shown to deliver a range of naturally occurring bioactive compounds with decent entrapment potential and stability, a successfully controlled release, increased bioavailability, and intriguing therapeutic activity. This review outlines bioactive compounds such as paclitaxel, curcumin, rhodomyrtone, quercetin, kaempferol, resveratrol, epigallocatechin-3-gallate, silymarin, and oridonin, fortified within either a natural or synthetic lipid-based drug delivery system based on nanotechnology and their evaluation and clinical considerations.

15.
Artigo em Inglês | MEDLINE | ID: mdl-38357950

RESUMO

Ovarian cancer poses a formidable health challenge for women globally, necessitating innovative therapeutic approaches. This review provides a succinct summary of the current research status on lipid-based nanocarriers in the context of ovarian cancer treatment. Lipid-based nanocarriers, including liposomes, solid lipid nanoparticles (SLNs), and nanostructured lipid carriers (NLCs), offer a promising solution for delivering anticancer drugs with enhanced therapeutic effectiveness and reduced adverse effects. Their versatility in transporting both hydrophobic and hydrophilic medications makes them well-suited for a diverse range of anticancer drugs. Active targeting techniques like ligand-conjugation and surface modifications have been used to reduce off-target effects and achieve tumour-specific medication delivery. The study explores formulation techniques and adjustments meant to enhance drug stability and encapsulation in these nanocarriers. Encouraging results from clinical trials and preclinical investigations underscore the promise of lipid-based nanocarriers in ovarian cancer treatment, providing optimism for improved patient outcomes. Notwithstanding these advancements, challenges related to clearance, long-term stability, and scalable manufacturing persist. Successfully translating lipidbased nanocarriers into clinical practice requires addressing these hurdles. To sum up, lipidbased nanocarriers are a viable strategy to improve the effectiveness of therapy for ovarian cancer. With their more focused medication administration and lower systemic toxicity, they may completely change the way ovarian cancer is treated and increase patient survival rates. Lipidbased nanocarriers need to be further researched and developed to become a therapeutically viable treatment for ovarian cancer.

16.
ACS Pharmacol Transl Sci ; 7(4): 967-990, 2024 Apr 12.
Artigo em Inglês | MEDLINE | ID: mdl-38633600

RESUMO

Precision medicine is transforming colorectal cancer treatment through the integration of advanced technologies and biomarkers, enhancing personalized and effective disease management. Identification of key driver mutations and molecular profiling have deepened our comprehension of the genetic alterations in colorectal cancer, facilitating targeted therapy and immunotherapy selection. Biomarkers such as microsatellite instability (MSI) and DNA mismatch repair deficiency (dMMR) guide treatment decisions, opening avenues for immunotherapy. Emerging technologies such as liquid biopsies, artificial intelligence, and machine learning promise to revolutionize early detection, monitoring, and treatment selection in precision medicine. Despite these advancements, ethical and regulatory challenges, including equitable access and data privacy, emphasize the importance of responsible implementation. The dynamic nature of colorectal cancer, with its tumor heterogeneity and clonal evolution, underscores the necessity for adaptive and personalized treatment strategies. The future of precision medicine in colorectal cancer lies in its potential to enhance patient care, clinical outcomes, and our understanding of this intricate disease, marked by ongoing evolution in the field. The current reviews focus on providing in-depth knowledge on the various and diverse approaches utilized for precision medicine against colorectal cancer, at both molecular and biochemical levels.

17.
Heliyon ; 10(16): e36417, 2024 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-39262951

RESUMO

This review explores the potential of zeolite-based nanoparticles in modern pharmaceutical research, focusing on their role in advanced drug delivery systems. Zeolites, integrated into polymeric materials, offer precise drug delivery capabilities due to their unique structural features, biocompatibility, and controllable properties. Additionally, zeolites demonstrate environmental remediation potential through ion exchange processes. Synthetic zeolites, with modified release mechanisms, possess distinctive optical and electronic properties, expanding their applications in various fields. The study details zeolites' significance across industrial and scientific domains, outlining synthesis methods and size control techniques. The review emphasizes successful encapsulation and functionalization strategies for drug delivery, highlighting their role in enhancing drug stability and enabling targeted delivery. Advanced characterization techniques contribute to a comprehensive understanding of zeolite-based drug delivery systems. Addressing potential carcinogenicity, the review discusses environmental impact and risk assessment, stressing the importance of safety considerations in nanoparticle research. In biomedical applications, zeolites play vital roles in antidiarrheal, antitumor, antibacterial, and MRI contrast agents. Clinical trials featuring zeolite-based interventions underscore zeolite's potential in addressing diverse medical challenges. In conclusion, zeolite-based nanoparticles emerge as promising tools for targeted drug delivery, showcasing diverse applications and therapeutic potentials. Despite challenges, their unique advantages position zeolites at the forefront of innovative drug delivery systems.

18.
Artigo em Inglês | MEDLINE | ID: mdl-39308344

RESUMO

Fluorescent liposomes are pivotal in cancer research, serving as adaptable vehicles for imaging and therapeutics. These small lipid vesicles, capable of encapsulating fluorescent dyes, offer precise visualization and monitoring of their targeted delivery to cancer cells. This review delves into the critical role fluorescent liposomes play in enhancing both cancer diagnosis and treatment. It provides an in-depth analysis of their structural features, fluorescent labeling techniques, targeting strategies, and the challenges and opportunities they present. In the domain of cancer diagnosis, the article sheds light on various imaging modalities enabled by fluorescent liposomes, including fluorescence imaging and multimodal techniques. Emphasis is placed on early detection strategies, exhibiting the utility of targeted contrast agents and biomarker recognition for enhanced diagnostic precision. Moving on to cancer treatment, the review discusses the sophisticated drug delivery mechanisms facilitated by fluorescent liposomes, focusing on chemotherapy and photodynamic therapy. Moreover, the exploration extends to targeted therapy, explaining the applications of fluorescent liposomes in gene delivery and RNA interference. In a nutshell, his article comprehensively explores the multifaceted impact of fluorescent liposomes on advancing cancer diagnosis and treatment, combining existing knowledge with emerging trends.

19.
Cent Nerv Syst Agents Med Chem ; 24(3): 294-303, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38646682

RESUMO

Central nervous system disorders are prevalent, profoundly debilitating, and poorly managed. Developing innovative treatments for these conditions, including Alzheimer's disease, could significantly improve patients' quality of life and reduce the future economic burden on healthcare systems. However, groundbreaking drugs for central nervous system disorders have been scarce in recent years, highlighting the pressing need for advancements in this field. One significant challenge in the realm of nanotherapeutics is ensuring the precise delivery of drugs to their intended targets due to the complex nature of Alzheimer's disease. Although numerous therapeutic approaches for Alzheimer's have been explored, most drug candidates targeting amyloid-ß have failed in clinical trials. Recent research has revealed that tau pathology can occur independently of amyloid-ß and is closely correlated with the clinical progression of Alzheimer's symptoms. This discovery suggests that tau could be a promising therapeutic target. One viable approach to managing central nervous system disorders is the administration of nanoparticles to neurons, intending to inhibit tau aggregation by directly targeting p-tau. In Alzheimer's disease, beta-amyloid plaques and neurofibrillary tau tangles hinder neuron transmission and function. The disease also triggers persistent inflammation, compromises the blood-brain barrier, leads to brain shrinkage, and causes neuronal loss. While current medications primarily manage symptoms and slow cognitive decline, there is no cure for Alzheimer's.


Assuntos
Doença de Alzheimer , Nanopartículas , Proteínas tau , Doença de Alzheimer/tratamento farmacológico , Doença de Alzheimer/metabolismo , Humanos , Proteínas tau/metabolismo , Proteínas tau/antagonistas & inibidores , Animais , Nanopartículas/química , Biomimética/métodos , Sistemas de Liberação de Medicamentos/métodos , Sistemas de Liberação de Medicamentos/tendências , Materiais Biomiméticos/química , Materiais Biomiméticos/administração & dosagem , Materiais Biomiméticos/uso terapêutico
20.
Curr Diabetes Rev ; 2024 Aug 12.
Artigo em Inglês | MEDLINE | ID: mdl-39136514

RESUMO

Diabetes mellitus (DM) is an intricate metabolic disorder marked by persistent hyperglycemia, arising from disruptions in glucose metabolism, with two main forms, type 1 and type 2, involving distinct etiologies affecting ß-cell destruction or insulin levels and sensitivity. The islets of Langerhans, particularly ß-cells and α-cells, play a pivotal role in glucose regulation, and both DM types lead to severe complications, including retinopathy, nephropathy, and neuropathy. Plant-derived anthocyanins, rich in anti-inflammatory and antioxidant properties, show promise in mitigating DM-related complications, providing a potential avenue for prevention and treatment. Medicinal herbs, fruits, and vegetables, abundant in bioactive compounds like phenolics, offer diverse benefits, including glucose regulation and anti-inflammatory, antioxidant, anticancer, anti-mutagenic, and neuroprotective properties. Anthocyanins, a subgroup of polyphenols, exhibit diverse isoforms and biosynthesis involving glycosylation, making them potential natural replacements for synthetic food colorants. Clinical trials demonstrate the efficacy and safety of anthocyanins in controlling glucose, reducing oxidative stress, and enhancing insulin sensitivity in diabetic patients, emphasizing their therapeutic potential. Preclinical studies revealed their multifaceted mechanisms, positioning anthocyanins as promising bioactive compounds for managing diabetes and its associated complications, including retinopathy, nephropathy, and neuropathy.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA