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1.
Int J Low Extrem Wounds ; : 15347346241228788, 2024 Feb 07.
Artigo em Inglês | MEDLINE | ID: mdl-38327069

RESUMO

Negative pressure wound therapy (NPWT) is a widely used and effective treatment for managing complex wounds. This document discusses how NPWT can be used in wound care in an updated way. The updated scenario on NPWT provides a concise overview of the current state of NPWT and its implications in clinical practice. It highlights recent developments in NPWT, as well as the advancements in this field. As part of NPWT, vacuum-assisted closure is used and negative pressure is applied to the wound bed. It discusses the key components and mechanisms. In addition to improving wound healing, NPWT also reduces infection rates and improves patient comfort, among other benefits. In addition, this document discusses the specific indications and contraindications of NPWT, as well as the types of wounds that can be treated with NPWT, including diabetic foot ulcers, pressure ulcers, and traumatic wounds. The document emphasizes the importance of choosing patients appropriately and assessing wounds to ensure optimal outcomes. In addition, it provides evidence-based guidelines and clinical recommendations on NPWT. In addition to reviewing the latest research findings supporting NPWT in a variety of clinical settings, it also discusses randomized controlled trials and systematic reviews. In addition, it discusses the potential complications and challenges associated with NPWT, including pain, bleeding, and device malfunction. The purpose of this document is to shed light on the role of NPWT in wound care management by providing an updated scenario. NPWT can be incorporated into clinical practice by healthcare professionals if they understand its principles, benefits, indications, and limitations. Healthcare providers can optimize patient outcomes and improve wound healing in diverse patient populations by staying abreast of the latest advancements in NPWT.

2.
Curr Drug Targets ; 21(12): 1250-1263, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32603280

RESUMO

BACKGROUND: Lymphatic filariasis is a pervasive and life-threatening disease for human beings. Currently, 893 million people in 49 countries worldwide affected by lymphatic filariasis as per WHO statistics. The concealed aspects of lymphatic diseases such as delayed disease detection, inappropriate disease imaging, the geographical outbreak of infection, and lack of preventive chemotherapy have brought this epidemic to the edge of Neglected Tropical Diseases. Many medications and natural bioactive substances have seen to promote filaricidal activity against the target parasitic species. However, the majority of failures have occurred in pharmaceutical and pharmacokinetic issues. OBJECTIVE: The purpose of the study is to focus on the challenges and therapeutic issues in the treatment of filariasis. The review brings novel techniques and therapeutic approaches for combating lymphatic filariasis. It also offers significant developments and opportunities for such therapeutic interventions. CONCLUSION: Through this review, an attempt has made to critically evaluate the avenues of innovative pharmaceuticals and molecular targeting approaches to bring an integrated solution to combat lymphatic filariasis.


Assuntos
Sistemas de Liberação de Medicamentos , Filariose Linfática/terapia , Antiparasitários/farmacologia , Antiparasitários/uso terapêutico , Filariose Linfática/epidemiologia , Filariose Linfática/prevenção & controle , Filariose Linfática/transmissão , Epigênese Genética , Programas Governamentais , Humanos , Sistema Linfático/metabolismo , Patentes como Assunto , Plantas Medicinais/química
3.
Drug Deliv ; 24(1): 1026-1036, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28687053

RESUMO

The aim of this study was to develop a potential novel formulation of carbopol-based nanoemulsion gel containing apigenin using tamarind gum emulsifier which was having the smallest droplet size, the highest drug content, and a good physical stability for Skin delivery. Apigenin loaded nanoemulsion was prepared by high speed homogenization method and they were characterized with respect to morphology, zeta potential, differential scanning calorimeter study, and penetration studies. In-vitro release studies and skin permeation of apigenin loaded nanoemulsion by goat abdominal skin was determined using Franz diffusion cell and confocal laser scanning microscope (CLSM). The cytotoxicity of the reported formulation was evaluated in HaCaT Cells (A) and A431 cells (B) by MTT assay. The nanoemulsion formulation showed droplet size, polydispersity index, and zeta potential of 183.31 nm, 0.532, and 31.9 mV, respectively. The nanoemulsions were characterized by TEM demonstrated spherical droplets and FTIR to ensure the compatibility among its ingredients. CLSM showed uniform fluorescence intensity across the entire depth of skin in nanocarriers treatment, indicating high penetrability of nanoemulsion gel through goatskin. The nanoemulsion gel showed toxicity on melanoma (A341) in a concentration range of 0.4-2.0 mg/ml, but less toxicity toward HaCaT cells. The carbopol-based nanoemulsion gel formulation of apigenin possesses better penetrability across goatskin as compared to marketed formulation. Hence, the study postulates that the novel nanoemulsion gel of apigenin can be proved fruitful for the treatment of skin cancer in near future.


Assuntos
Nanoestruturas , Resinas Acrílicas , Administração Cutânea , Apigenina , Linhagem Celular Tumoral , Emulsões , Humanos , Neoplasias Induzidas por Radiação , Pele , Absorção Cutânea , Neoplasias Cutâneas
4.
J Pharmacopuncture ; 20(1): 18-22, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28392958

RESUMO

OBJECTIVES: The current investigation was carried out to determine the cytotoxic and the antimicrobial activities of methanolic extracts of Plumbago zeylanica. METHODS: The stems, leaves, and whole plants were air dried and extracted with methanol by using a Soxhlet extractor for 72 hours at 55 - 60°C. The antimicrobial activities were determined from the zones of inhibition, which were measured by using the agar well diffusion method, and the cytotoxicity assays were performed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay method. RESULTS: The methanolic extracts of the stem and the leaves of Plumbago zeylanica were tested against six bacterial species and nine fungal species, and both extracts showed antimicrobial activity in a dose-dependent manner. The leaf extract of Plumbago zeylanica showed maximum antimicrobial activity against both Staphylococcus aureus sub sp aureus and Fusarium oxysporum. The stem extract was found to be more antimicrobial against the Pseudomonas aeruginosa and the Penicillium expansum species. MTT assays were used to test the cytotoxicity of the whole plant extract in the HCT-116 and the K-562 cell lines, and that extract was shown to have weak cytotoxicity in both cell lines. CONCLUSION: In the present study, the methanolic stem extracts of Plumbago zeylanica were found to possess remarkable antibacterial activities against many human and agricultural pathogens. The extracts were also found to possess significant antifungal activities, but the antifungal activities were less than the antibacterial activities. Finally, the extracts were found to have weak cytotoxicities in the HCT-116 and the K-562 cell lines.

5.
Artif Cells Nanomed Biotechnol ; 45(7): 1452-1462, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28050929

RESUMO

The aim of this work is to apply Box-Behnken design to optimize the transfersomes were formulated by modified rotary evaporation sonication technique using surfactant Tween 80. The response surface methodology was used having three-factored with three levels. The prepared formulations were characterized for vesicle shape, size, entrapment efficiency (%), stability, and in vitro permeation. The result showed that drug entrapment of 84.24% with average vesicle size of 35.41 nm and drug loading of 8.042%. Thus, optimized formulation was found good stability and is a promising approach to improve the permeability of apigenin in sustained release for prolonged period of time.


Assuntos
Apigenina/química , Portadores de Fármacos/química , Neoplasias Cutâneas/metabolismo , Apigenina/metabolismo , Apigenina/uso terapêutico , Preparações de Ação Retardada , Liberação Controlada de Fármacos , Tamanho da Partícula , Permeabilidade , Fosfolipídeos/química , Polissorbatos/química , Neoplasias Cutâneas/tratamento farmacológico , Tensoativos/química
6.
J Recept Signal Transduct Res ; 37(3): 314-323, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28095746

RESUMO

Targeted drug delivery through folate receptor (FR) has emerged as a most biocompatible, target oriented, and non-immunogenic cargoes for the delivery of anticancer drugs. FRs are highly overexpressed in many tumor cells (like ovarian, lung, breast, kidney, brain, endometrial, and colon cancer), and targeting them through conjugates bearing specific ligand with encapsulated nanodrug moiety is undoubtedly, a promising approach toward tumor targeting. Folate, being an endogenous ligand, can be exploited well to affect various cellular events occurring during the progress of tumor, in a more natural and definite way. Thus, the aim of the review lies in summarizing the advancements taken place in the drug delivery system of different therapeutics through FRs and to refine its role as an endogenous ligand, in targeting of synthetic as well as natural bioactives. The review also provides an update on the patents received on the folate-based drug delivery system.


Assuntos
Sistemas de Liberação de Medicamentos , Receptor 1 de Folato/química , Terapia de Alvo Molecular , Neoplasias/tratamento farmacológico , Antineoplásicos/química , Antineoplásicos/uso terapêutico , Receptor 1 de Folato/antagonistas & inibidores , Receptor 1 de Folato/metabolismo , Ácido Fólico/genética , Ácido Fólico/metabolismo , Humanos , Ligantes , Neoplasias/química , Neoplasias/patologia , Plantas Medicinais/química , Receptores de Superfície Celular
7.
Artif Cells Nanomed Biotechnol ; 44(3): 960-70, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-25813566

RESUMO

The aim of this study was to design a targeted drug delivery system carrying a natural anticancer drug Quercetin (Qu), specifically for skin cancer. A central composite design was applied separately for each ligand, and the quadratic model was used for the process. The surface morphology was confirmed by transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FTIR), and in vitro release studies were also performed. The MTT assay was performed against two different cell lines, to measure their anticancer potentials and their targeting ability. The study thus reveals that MA-Qu-PLGA and FA-Qu-PLGA nanoparticles (NPs) can be used as effective drug delivery systems for skin cancer treatment encompassing natural drugs.


Assuntos
Antineoplásicos , Sistemas de Liberação de Medicamentos/métodos , Nanopartículas/química , Quercetina , Neoplasias Cutâneas/tratamento farmacológico , Antineoplásicos/química , Antineoplásicos/farmacocinética , Antineoplásicos/farmacologia , Linhagem Celular Tumoral , Humanos , Quercetina/química , Quercetina/farmacocinética , Quercetina/farmacologia , Neoplasias Cutâneas/metabolismo , Neoplasias Cutâneas/patologia
8.
J Nanosci Nanotechnol ; 15(6): 4070-9, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26369014

RESUMO

Novel drugs delivery systems (NDDS), formulations from plant actives and extracts are still a matter of thrust and hot cake among the researchers working with phytomedicine. Novel delivery systems such as polymeric liposomes, colloidisomes, aquasomes, ethosomes, niosomes, proliposomes, phytosomes, nanoparticles, nanocapsules, nanoemulsions, microsphere and transferosomes have been proven to be a better carrier for delivery of the phyto-constituents as already done by various eminent scientists. Due to increased bioavailability, protection from toxicity, enhancement of pharmacological activity, enhancement of stability, improved tissue macrophages distribution, sustained delivery, and protection from physical and chemical degradation novel delivery systems are more suitable delivery system in compare to the conventional systems. This articled, highlight the remarkable findings in the recent past by innovators exclusively working on novel drug delivery systems for phyto-constituents.


Assuntos
Lipossomos , Nanomedicina , Nanopartículas , Fitoterapia , Extratos Vegetais , Microesferas , Nanomedicina/métodos , Nanomedicina/tendências , Fitoterapia/métodos , Fitoterapia/tendências
9.
Pak J Biol Sci ; 17(2): 167-72, 2014 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-24783798

RESUMO

Photosensitization is a process in which the skin reacts to exposure to ultraviolet radiations. There are various associated dermatological consequences like photoxicity and photoallergic reactions which make the disease more complicated. There are various drugs which together with solar radiations worsen the situation of photosensitivity and hence termed as photosensitizers. The developments on the use of phytoconstituents from the herbal extract is the ardent need for fighting against the deleterious photosensitization reactions. This review attempts to highlight the problems of photosensitivity its pathological manifestation with the approach to treat them naturally with the help of skin rejuvenating herbs.


Assuntos
Dermatite Fototóxica/tratamento farmacológico , Transtornos de Fotossensibilidade/tratamento farmacológico , Extratos Vegetais/farmacologia , Raios Ultravioleta/efeitos adversos , Humanos , Fármacos Fotossensibilizantes , Plantas Medicinais , Pele/efeitos dos fármacos , Pele/efeitos da radiação
10.
Ageing Res Rev ; 13: 65-74, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24355347

RESUMO

The continuous exposure of skin to ultraviolet radiations generates reactive oxygen species leading to photoaging in which degradation of dermal collagen and degeneration of elastic fibers occurs. Matrix metalloproteinase [MMP] enzymes are the proteolytic enzymes which have significant potentiality of cleaving extracellular matrix [ECM] against Ultraviolet [UV] radiation. The important MMPs are MMP1, MMP2 and MMP7 which promote skin cancer when irradiated by UV rays. In lieu of this, the investigation of MMPs and their inhibitors are constantly being studied for successive results. Recent researches have focused on some traditionally used bioactive moieties as natural matrix metalloproteinases inhibitors (MMPIs) and emphasized on the need of more extensive and specific studies on MMPIs, so that a good combination of natural or synthetic MMPIs with the conventional drugs can be evolved for cancer chemotherapy. In this review, we discuss the current view on the feasibility of MMPs as targets for therapeutic intervention in cancer. This review also summarizes the role of small molecular weight natural MMPIs and a clinical update of those natural MMPIs that are under clinical trial stage.


Assuntos
Antineoplásicos/uso terapêutico , Inibidores de Metaloproteinases de Matriz/uso terapêutico , Metaloproteinases da Matriz/metabolismo , Neoplasias Induzidas por Radiação/tratamento farmacológico , Neoplasias Cutâneas/tratamento farmacológico , Luz Solar/efeitos adversos , Raios Ultravioleta/efeitos adversos , Animais , Desenho de Fármacos , Humanos , Terapia de Alvo Molecular , Neoplasias Induzidas por Radiação/enzimologia , Neoplasias Induzidas por Radiação/patologia , Neoplasias Cutâneas/enzimologia , Neoplasias Cutâneas/patologia
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