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1.
Drug Chem Toxicol ; 47(2): 235-242, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37990576

RESUMO

Phytochemicals as therapeutic alternatives can have a fundamental impact on the various stages of inflammation and its resolution. Prunetin is a naturally occurring isoflavone and has been claimed to have numerous therapeutic potentials. The objective of this study is preparation, characterization, and toxicity evaluation of microemulsion formulation containing prunetin (PMF) for potential oral applications. With this research, it was targeted to emphasize the way of improving the therapeutic efficacy of natural biomolecules with a nontoxic and effective formulation. In the study, the pseudo-ternary phase diagram was developed and PMF was characterized by conductivity, droplet size, viscosity and pH. Effects against to cytokines (IL-1ß and IL-6) and TNF-α levels of the PMF were determined by ELISA technique. Genotoxicity and acute oral toxicity tests were carried out according to OECD guidelines. The results showed that PMF is a colloid system that reduced proinflammatory cytokine levels in LPS-induced macrophage cells compared to the control group. PMF demonstrated no mutagenic activity against TA98, TA100, TA1535, and TA1537 Salmonella strains. The in vivo oral acute toxicity test results indicated that PMF did not show mortality or significant side effects even at 2000 mg/kg bw. This study represents PMF showed a good safety profile in animal study. It is thought that this formulation may have anti-inflammatory potential with further in vivo testing.


Assuntos
Anti-Inflamatórios , Isoflavonas , Animais , Anti-Inflamatórios/farmacologia , Isoflavonas/farmacologia , Citocinas , Mutagênicos
2.
Pharm Dev Technol ; 27(10): 1016-1026, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36583670

RESUMO

This research aimed to develop patches for transdermal delivery of acemetacin, which can be used to treat rheumatic diseasesand to determine their potential use. Patches were successfully created by solvent casting method using hydroxypropyl methylcellulose, propylene glycol, polyethylene glycol 400, tween 80, and dimethyl sulfoxide. Prepared patches were found using the Design of Experiments (DoE) method within the Quality by Design (QbD) approach. F1-ACM with a thickness of 0.1 ± 0.0 cm, a weight of 43.33 ± 6.29 mg, pH of 4.99 ± 0.24, moisture content of 18.33 ± 2.98%, a tensile strength of 9.196 ± 0.441 Mpa, elongation at break of 28.722 ± 0.803% and drug content of 100% was chosen as ideal formulation. 89.7% of ACM from F1-ACM was released in 5 min. F1-ACM significantly (p < 0.05) increased the response latency to the thermal stimulus at 90th (3.071 ± 0.517) and 120th (3.87 ± 0.332) min in the hot plate test. In the tail-flick experiment, F1-ACM significantly (p < 0.05) increased the reaction delay against heat stimuli at 90th (3.016 ± 0.695), 120th (2.884 ± 0.851), and 180th (2.893 ± 0.932) min. F1-ACM patch significantly (p < 0.001) inhibited paw edema formation at 1, 2, 3, 4, and 5 h after induction of inflammation as compared to the control group. Therefore, this formulation can be employed more efficiently for rheumatic disease.


Assuntos
Doenças Reumáticas , Pele , Humanos , Adesivo Transdérmico , Administração Cutânea
3.
Pharm Dev Technol ; 26(4): 431-443, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33567946

RESUMO

This study aimed to present an effective formulation targeting oral ulcers that will remain in the application site for a longer period, reducing the frequency of administration. As a candidate formulation, usnic acid (UA) was loaded into the optimum nanogels. The characterization studies included physical, rheological, and bioadhesive properties as well as in vitro release and ex vivo studies. The rheological results revealed that the nanogels present pseudoplastic flow behavior. In vitro drug release showed a prolonged pattern. In further, the chosen UA nanogels showed very low percentages of penetration and permeation. F13, which showed the highest release, suitable bioadhesive properties (0.475 ± 0.033 N/cm2) and eligible particle size (250.22 ± 4.11 nm), PDI (0.089 ± 0.052), and zeta potential (20.56 ± 0.330 mV) values were chosen for in vivo experiments. The selected UA nanogels showed effective antimicrobial activity against Bacillus Cereus and great in vivo wound healing properties. The results indicated that suitable UA nanogels with desired properties could be prepared. The therapeutic potential of the nanogels for oral ulcers was assessed using an animal model and the histopathological findings suggested that the optimized formulation is a good choice for oral ulcer treatment. Nonetheless, further research is recommended to support its efficacy by applying pharmacodynamic and pharmacokinetic studies in human individuals.


Assuntos
Benzofuranos/administração & dosagem , Nanogéis , Úlceras Orais/tratamento farmacológico , Cicatrização/efeitos dos fármacos , Adesividade , Animais , Anti-Infecciosos/administração & dosagem , Anti-Infecciosos/farmacologia , Bacillus cereus/efeitos dos fármacos , Benzofuranos/farmacologia , Preparações de Ação Retardada , Modelos Animais de Doenças , Liberação Controlada de Fármacos , Masculino , Úlceras Orais/patologia , Tamanho da Partícula , Coelhos , Reologia
4.
Biol Pharm Bull ; 43(5): 831-838, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32378560

RESUMO

This study aims to determine the potential renal protective effects of Opuntia ficus-indica (L.) Miller (OFI) fruits against cisplatin-induced nephrotoxicity in mice. The antioxidant activity of OFI methanol extract was calculated by 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis-3-ethylbenzthiazoline-6-sulfonic acid (ABTS) free radical scavenging assays. Furthermore, the LC-mass spectroscopy (MS) analysis of the OFI fruit extract was carried out. Mice were treated with OFI extract (250 mg/kg) for 10 d and injected with a single dose of cisplatin (20 mg/kg) on the 7th day. The blood samples were collected to measure blood urea nitrogen (BUN) and serum creatinine level on the 10th day. Their kidneys were removed for histopathological examination. The renal morphological alterations were assessed through the mesangial matrix index and transmission electron microscopy (TEM). The OFI fruit extract showed significant in vitro antioxidant activity. In further, it was revealed that the cisplatin-induced nephrotoxicity in mice was ameliorated; this outcome was supported by both histological examination results and the depicted reduced levels of BUN and serum creatinine. The potent antioxidant compounds which were detected in the extract of OFI fruits such as myricetin, quercetin, luteolin might be responsible for the observed renoprotective effect. The results clarified that the OFI fruit extract could ameliorate cisplatin-induced renal toxicity in mice via including antioxidant and renoprotective compounds.


Assuntos
Antineoplásicos/toxicidade , Antioxidantes/uso terapêutico , Cisplatino/toxicidade , Nefropatias/tratamento farmacológico , Opuntia , Extratos Vegetais/uso terapêutico , Animais , Antioxidantes/química , Benzotiazóis/química , Compostos de Bifenilo/química , Flavonoides/análise , Flavonoides/uso terapêutico , Frutas , Rim/efeitos dos fármacos , Rim/patologia , Nefropatias/induzido quimicamente , Nefropatias/patologia , Camundongos Endogâmicos BALB C , Fenóis/análise , Fenóis/uso terapêutico , Picratos/química , Extratos Vegetais/química , Ácidos Sulfônicos/química
5.
Drug Dev Res ; 81(6): 716-727, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32359095

RESUMO

Ocular allergy is one of the most common disorders of the eye surface. The conventional eye drops lack of therapeutic efficacy due to low ocular bioavailability and decreased drug residence time on eye surface. Hence, the present research work aimed to formulate, optimize, and evaluate the in situ gel for ophthalmic drug delivery. The prepared in situ gel formulations were evaluated for clarity, pH, gelling capacity, viscosity, osmolality, in vitro release study, and kinetic evaluation. ex vivo corneal permeation/penetration study using goat and in vivo studies on rabbits were also performed. Fourier-transformed infrared spectroscopy was also applied to study possible interactions between drug and polymers. The formulations found to be stable, nonirritant, and showed sustained release of the drug for a period of up to 24 hr with no ocular damage. The developed in situ gels loaded with tetrahydrozoline are alternative and promising ocular candidates for the treatment of allergic conjunctivitis.


Assuntos
Agonistas Adrenérgicos/administração & dosagem , Conjuntivite Alérgica/tratamento farmacológico , Imidazóis/administração & dosagem , Descongestionantes Nasais/administração & dosagem , Agonistas Adrenérgicos/química , Animais , Córnea/efeitos dos fármacos , Córnea/metabolismo , Liberação Controlada de Fármacos , Géis , Imidazóis/química , Descongestionantes Nasais/química , Coelhos
6.
Molecules ; 25(11)2020 Jun 10.
Artigo em Inglês | MEDLINE | ID: mdl-32531998

RESUMO

The air-dried aerial parts of Phlomis russeliana (Sims) Lag. Ex Benth. was extracted by methanol and fractionated by n-hexane, dichloromethane, and ethyl acetate, respectively. The wound healing properties of P. russeliana extract gel was evaluated using the in vivo excisional wound model using Balb-c mice. Initially, the P. russeliana methanol extract showed LOX inhibitory activity at IC50 = 23.2 µg/mL, whereas the DPPH• assay showed IC50 = 0.89 mg/mL, and the ABTS• assay showed IC50 = 0.99 mg/mL, respectively. In addition, a remarkable anti-inflammatory activity was observed in the cell culture assay. Thereafter, activity-guided fractionation was performed by LOX enzyme inhibition assays, and the structures of the two most active fractions were revealed by both GC-FID and GC/MS analyses, simultaneously. Phytol and 1-heptadecanoic acid were characterized as the active constituents. Moreover, the P. russeliana extract gel formulation was applied for in vivo tests, where the new gel formulation supported the in vitro anti-inflammatory activity findings. As a conclusion, this experimental results support the wound healing evidence based on the ethnobotanical application of Phlomis species with further potential.


Assuntos
Anti-Inflamatórios/farmacologia , Inflamação/tratamento farmacológico , Phlomis/química , Fitoterapia , Extratos Vegetais/farmacologia , Dermatopatias/tratamento farmacológico , Cicatrização/efeitos dos fármacos , Animais , Antibacterianos/farmacologia , Antioxidantes/farmacologia , Bactérias/efeitos dos fármacos , Composição de Medicamentos , Géis , Inflamação/etiologia , Inflamação/patologia , Camundongos , Camundongos Endogâmicos BALB C , Dermatopatias/etiologia , Dermatopatias/patologia
7.
Saudi Pharm J ; 28(3): 338-348, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32194336

RESUMO

The objective of the present research was to examine the possible usage of microemulsion based gel for fusidic acid (FA) dermal application as burn wound treatment. During the preparation of microemulsion, ethyl oleate as oil phase, tween 80 as a surfactant, ethanol as co-surfactant, water as aqueous phase were used. The prepared microemulsions were evaluated for clarity, pH, viscosity and FA content. Moreover, stability, sterility, antibacterial activity, in vitro release of the formulations were also evaluated. The results showed that the FA loaded microemulsion and microemulsion based gel formation and characteristics were related to many parameters of the components. The performed optimized microemulsion-based gel showed good stability over a period of 3 months. The antibacterial activity of microemulsion-based gel was found to be comparable with marketed cream. RAW 264.7 macrophages were used to determine cell viability (MTT assay) and nitric oxide production. MBG and FA-MBG significantly inhibit the production of the inflammatory mediator NO in LPS-stimulated RAW 264.7 cells in a concentration-dependent manner. The wound healing property was evaluated by histopathological examination and by measuring the wound contraction. The % of wound area in rats treated with FA (2%) loaded microemulsion based gel ranged from 69.30% to 41.39% in the period from 3 to 10 days. In conclusion, FA loaded microemulsion based gel could be offered as encouraging strategy as dermal systems for the burn wound treatment.

8.
Saudi Pharm J ; 27(5): 738-752, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31297030

RESUMO

In this study, novel adhesive films were prepared for Mupirocin dermal delivery. Natural polymers as chitosan, sodium alginate and carbopol were used for films development to evaluate possible interactions and drug release properties. Solvent evaporation method was used for films preparation. Preliminary studies involved FT-IR spectroscopy and Scanning Electron Microscopy to specify interactions and morphology. Thickness, tensile strength and water uptake in phosphate buffer saline were evaluated whereas in vitro release studies were also performed. In vitro drug release studies demonstrated that mupirocin release was improved. Ex vivo bioadhesion and permeation studies using Balb-c mice were performed to check the suitability of the films. Antimicrobial ability was evaluated by agar well diffusion tests. Finally, excisional wound model applied to test the wound healing effect and evaluated macroscopic and histopathologically. One formulation was found more effective compared to the market product for wound healing at Balb-c mice.

9.
Gels ; 9(9)2023 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-37754434

RESUMO

The delivery of active molecules via the skin seems to be an efficient technology, given the various disadvantages of oral drug administration. Skin, which is the largest human organ of the body, has the important role of acting as a barrier for pathogens and other molecules including drugs; in fact, it serves as a primary defense system blocking any particle from entering the body. Therefore, to overcome the skin barriers and poor skin permeability, researchers implement novel carriers which can effectively carry out transdermal delivery of the molecules. Another significant issue which medical society tries to solve is the effective dermal delivery of molecules especially for topical wound delivery. The application of nanogels is only one of the available approaches offering promising results for both dermal and transdermal administration routes. Nanogels are polymer-based networks in nanoscale dimensions which have been explored as potent carriers of poorly soluble drugs, genes and vaccines. The nanogels present unique physicochemical properties, i.e., high surface area, biocompatibility, etc., and, importantly, can improve solubility. In this review, authors aimed to summarize the available applications of nanogels as possible vehicles for dermal and transdermal delivery of active pharmaceutical ingredients and discuss their future in the pharmaceutical manufacturing field.

10.
Medeni Med J ; 38(1): 8-15, 2023 Mar 28.
Artigo em Inglês | MEDLINE | ID: mdl-36974384

RESUMO

Objective: In this study, the antioxidant properties of Arum maculatum plant were evaluated. This study reported for the first time the wound healing activity of the methanol extract of A. maculatum fruits. This study aimed to assess and determine the possible pharmacological activities of A. maculatum and evaluate its potential to act as a wound care plant. Methods: The antioxidant and antimicrobial activities of A. maculatum were investigated using excisional in vivo and in vitro wound healing mouse models. A total of 32 Balb-c mice were used, which were equally, divided into four groups: saline control group, control group, A. maculatum group, and Centella asiatica extract group. Treatment applications were performed topically once per day. Wound area narrowing, wound healing percentage, and epithelialization time were analyzed. Results: A. maculatum application supported the healing process in in vivo and in vitro wound models. A. maculatum contributed to the healing process by promoting granulation tissue formation, epidermal regeneration, and angiogenesis. Conclusions: Wound healing is a complex and well-organized process that requires communication between cells. The antioxidant and antimicrobial activities of A. maculatum extract have been determined by current studies. A. maculatum extract may provide significant benefits in promoting the wound healing process.

11.
Iran J Pharm Res ; 21(1): e132265, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36942057

RESUMO

Background: Diabetes mellitus (DM) is frequently linked with problems of several organ systems, including retinopathy, neuropathy, and nephropathy. Additionally, patients have changes in sexual functioning, such as decreased libido and fertility. Vincamine, a monoterpenoid indole alkaloid, has hypoglycemic and antioxidant effects. Objectives: This research assessed the impact of vincamine on testicular dysfunction in alloxan-induced male rats by measuring fasting blood glucose, oxidative stress, seminal analysis, and histological examination of the testis. Methods: Wister-albino male rats were randomized into the following groups at random: Untreated-healthy, untreated-DM, vincamine-treated (20 mg/kg) DM, vincamine-treated (40 mg/kg) DM, and clomiphene-treated DM (5 mg/kg). On day 14, rats were sacrificed, and semen/blood samples were collected. Sperm count, motility, and morphological abnormalities were noted by microscopic examination. The testis was examined histopathologically and assessed using Johnsen's score. Results: Compared with the untreated diabetic group, a dosage of 40 mg/kg vincamine generate a significant reduction in fasting blood sugar (FBG). Compared with the untreated diabetic group, the vincamine-treated rats produced greater plasma testosterone levels and Johnsen scores. In the vincamine 20 mg/kg group, sperm concentration was higher than in the vincamine 40 mg/kg group. Conclusions: It is possible that vincamine has a potential preventive effect against diabetes-related reproductive problems attributable to its antioxidant activity and capacity to restore testicular steroidogenesis.

12.
Curr Pharm Des ; 28(30): 2437-2460, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35410592

RESUMO

Alzheimer's disease accounts for a high percentage of dementia cases in elderly individuals. This type of brain disease is caused by damage to the brain cells affecting the ability of the patients to communicate, as well as their thinking, behavior, and feelings. Although numerous research laboratories focus on advancements in treating Alzheimer's disease, the currently approved pharmacological approaches seem to only alleviate the symptoms. Consequently, there is an urgent need for alternative pharmacological options that can prevent the progressive impairment of neurons. Natural substances were used in ancient times to treat various disorders given their biological activities such as antioxidant, anti-inflammatory, and antiapoptotic properties. Besides, their cost-effectiveness and accessibility to anyone who needs them are their most significant characteristics. Therefore, the possible use of phytochemical compounds for the possible management or even prevention of Alzheimer's disease is currently under investigation. This review article summarizes the present status of Alzheimer's disease diagnosis and underlying mechanisms, the potential phytochemicals and their carriers, along with future perspectives. In the future, natural substances can play a role as an adjunct therapy for neurodegenerative forms of dementia, such as Alzheimer's disease.


Assuntos
Doença de Alzheimer , Idoso , Doença de Alzheimer/diagnóstico , Doença de Alzheimer/tratamento farmacológico , Anti-Inflamatórios/uso terapêutico , Antioxidantes/uso terapêutico , Encéfalo , Humanos , Compostos Fitoquímicos/farmacologia , Compostos Fitoquímicos/uso terapêutico
13.
Pharmaceutics ; 14(11)2022 Nov 10.
Artigo em Inglês | MEDLINE | ID: mdl-36365243

RESUMO

It has been estimated that every year, millions of people are affected by neurodegenerative disorders, which complicate their lives and their caregivers' lives. To date, there has not been an approved pharmacological approach to provide the complete treatment of neurodegenerative disorders. The only available drugs may only relieve the symptoms or slow down the progression of the disease. The absence of any treatment is quite rational given that neurodegeneration occurs by the progressive loss of the function or structure of the nerve cells of the brain or the peripheral nervous system, which eventually leads to their death either by apoptosis or necrotic cell death. According to a recent study, even though adult brain cells are injured, they can revert to an embryonic state, which may help to restore their function. These interesting findings might open a new path for the development of more efficient therapeutic strategies to combat devastating neurodegenerative disorders. Gene and protein therapies have emerged as a rapidly growing field for various disorders, especially neurodegenerative diseases. Despite these promising therapies, the complete treatment of neurodegenerative disorders has not yet been achieved. Therefore, the aim of this review is to address the most up-to-date data for neurodegenerative diseases, but most importantly, to summarize the available delivery systems incorporating proteins, peptides, and genes that can potentially target such diseases and pass into the blood-brain barrier. The authors highlight the advancements, at present, on delivery based on the carrier, i.e., lipid, polymeric, and inorganic, as well as the recent studies on radiopharmaceutical theranostics.

14.
Asian J Pharm Sci ; 16(1): 24-46, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33613728

RESUMO

In the last decade, the use of nanotheranostics as emerging diagnostic and therapeutic tools for various diseases, especially cancer, is held great attention. Up to date, several approaches have been employed in order to develop smart nanotheranostics, which combine bioactive targeting on specific tissues as well as diagnostic properties. The nanotheranostics can deliver therapeutic agents by concomitantly monitor the therapy response in real-time. Consequently, the possibility of over- or under-dosing is decreased. Various non-invasive imaging techniques have been used to quantitatively monitor the drug delivery processes. Radiolabeling of nanomaterials is widely used as powerful diagnostic approach on nuclear medicine imaging. In fact, various radiolabeled nanomaterials have been designed and developed for imaging tumors and other lesions due to their efficient characteristics. Inorganic nanoparticles as gold, silver, silica based nanomaterials or organic nanoparticles as polymers, carbon based nanomaterials, liposomes have been reported as multifunctional nanotheranostics. In this review, the imaging modalities according to their use in various diseases are summarized, providing special details for radiolabeling. In further, the most current nanotheranostics categorized via the used nanomaterials are also summed up. To conclude, this review can be beneficial for medical and pharmaceutical society as well as material scientists who work in the field of nanotheranostics since they can use this research as guide for producing newer and more efficient nanotheranostics.

15.
J Ethnopharmacol ; 266: 113408, 2021 Feb 10.
Artigo em Inglês | MEDLINE | ID: mdl-32979409

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: The preparations of Phlomis aerial parts are used traditionally in Anatolia for wound healing and in inflammatory disorders. METHODS: For the identification of the active fraction, the air dried aerial parts of Phlomis rigida Labill. were extracted by methanol and fractionated successively by n-hexane, dichloromethane and ethyl acetate, respectively. The phenolic constituents were characterized by the Folin-Ciocaltheu method; the antioxidant activity was performed by ABTS and DPPH radical scavenging assays. In vitro anti-inflammatory activity was evaluated by LOX enzyme inhibition, spectrophotometrically as well as cell cultures. The wound healing properties of P. rigida extract gels were studied via in vitro cell culture methods and in vivo by excisional wound model using Balb-c mice. The P. rigida extract was analyzed and characterized by GC-FID, GC-MS, and LC-MS. RESULTS: The P. rigida methanol extract showed moderate LOX inhibitory at IC50 = 19.5 ± 2.8 µg/mL whereas the antioxidant activity was by DPPH• IC50 = 0.89 mg/mL, and by ABTS• IC50 = 0.99 mg/mL, respectively. In addition, a remarkable P. rigida extracts anti-inflammatory activity was observed in the cell culture assay, which was then confirmed by the in vitro wound healing activity applied at 0.125-0.5 mg/mL concentrations, resulting in a dose-dependent increase in wound closure at the final stage. The P. rigida gel formulation was prepared to evaluate the extract in vivo, whereas the experimental results of the new gel formulation supported the findings of the in vitro wound healing activity. CONCLUSION: The findings of this in vitro and in vivo study suggest that the wound healing and anti-inflammatory properties provide a scientific evidence of the ethnopharmacological application of Phlomis species.


Assuntos
Analgésicos/farmacologia , Anti-Inflamatórios/farmacologia , Phlomis/química , Extratos Vegetais/farmacologia , Analgésicos/administração & dosagem , Analgésicos/isolamento & purificação , Animais , Anti-Inflamatórios/administração & dosagem , Anti-Inflamatórios/isolamento & purificação , Antioxidantes/isolamento & purificação , Antioxidantes/farmacologia , Sequestradores de Radicais Livres/administração & dosagem , Sequestradores de Radicais Livres/isolamento & purificação , Sequestradores de Radicais Livres/farmacologia , Inflamação/tratamento farmacológico , Inflamação/patologia , Concentração Inibidora 50 , Camundongos , Camundongos Endogâmicos BALB C , Extratos Vegetais/administração & dosagem , Células RAW 264.7 , Cicatrização/efeitos dos fármacos
16.
J Drug Target ; 29(5): 476-490, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33269637

RESUMO

Neurodegeneration is defined as the progressive atrophy and loss of function of neurons; it is present in neurodegenerative disorders such as Multiple Sclerosis, Alzheimer's, Huntington's, and Parkinson's diseases. The detection of such disorders is performed by various imaging modalities while their therapeutic management is quite challenging. Besides, the pathogenesis of neurodegenerative disorders is still under ongoing research due to complex and multi-factorial mechanisms. Currently, targeting the specific proteins responsible for neurodegeneration is of great interest to many researchers. Furthermore, nanotechnology-based approaches for targeting the affected neurons became an emerging field of interest. Nanostructures of various forms have been developed aiming to act as therapeutics for neurodegeneration, in which electrospun nanofibers seem to play an important role as biomedical products for both detection and management of the diseases. Electrospinning is an intriguing method able to produce nanofibers with a wide range of sizes and morphological characteristics. Such nanofibrous matrices can be delivered through different administration routes to target various diseases. In this review, the most recent advancements in electrospun nanofibrous systems that target or detect multiple neurodegenerative diseases have been enlightened and an introduction to the general aspects of neurodegenerative diseases and the electrospinning process has been made. Finally, future perspectives of neurodegeneration targeting were also discussed.


Assuntos
Sistemas de Liberação de Medicamentos/métodos , Nanofibras/administração & dosagem , Nanotecnologia/métodos , Doenças Neurodegenerativas/tratamento farmacológico , Animais , Sistemas de Liberação de Medicamentos/tendências , Humanos , Nanofibras/química , Nanotecnologia/tendências , Doenças Neurodegenerativas/metabolismo
17.
Asian J Pharm Sci ; 15(6): 661-684, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33363624

RESUMO

Wound healing is an unmet therapeutic challenge among medical society since wound assessment and management is a complex procedure including several factors playing major role in healing process. Wounds can mainly be categorized as acute or chronic. It is well referred that the acute wound displays normal wound physiology while healing, in most cases, is seemed to progress through the normal phases of wound healing. On the other hand, a chronic wound is physiologically impaired. The main problem in wound management is that the majority of wounds are colonized with microbes, whereas this does not mean that all wounds will be infected. In this review, we address the problems that clinicians face to manage while treat acute and chronic wounds. Moreover, we demonstrate the pathophysiology, etiology, prognosis and microbiology of wounds. We further introduce the state of art in pharmaceutical technology field as part of wound management aiming to assist health professionals to overcome the current implications on wound assessment. In addition, authors review researches which included the use of gels and dermal films as wound healing agents. It can be said that natural and synthetic drugs or carriers provide promising solutions in order to meet the wound management standards. However, are the current strategies as desirable as medical society wish?

18.
Medeni Med J ; 35(4): 315-323, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33717624

RESUMO

OBJECTIVE: In this study, we examined the effects of Polypodium vulgare L. (Polypodiaceae) as a candidate to be used for wound healing scarred area. We investigated the antibacterial, and antioxidant activity of P. Vulgare on both in vivo, and in vitro wound healing using an excisional wound model in mice. METHOD: We used 32 Balb-c mice equally divided into four groups: Group 1 control, Group 2 vehicle, Group 3 Polypodium vulgare, and Group 4 Centella asiatica extract (CAE). All treatments were applied topically once in a day. The scar area, percentage wound closure and epithelization time were measured. PDGF, VEGF, and collagen immunohistochemical staining were used for evaluation. RESULTS: CAE and P. vulgare extract groups were observed to be more effective than the control and vehicle groups in terms of new vascular, epidermal and granulation tissue organization. PDGF, VEGF, and collagen immunohistochemical staining was stronger in the P.vulgare extract and CAE groups compared to the control and vehicle groups. In the P. vulgare and CAE groups, PDGF staining intensity was stronger than the control and vehicle groups, but VEGF and collagen staining in P. vulgare group was not different from the control group. CONCLUSION: P. vulgare had an effect on the injured area by regenerating the epidermis and increasing vascularization. P. vulgare extract with known antioxidant, and antimicrobial activities may be helpful as a supportive treatment in wound healing.

19.
Medeni Med J ; 34(3): 297-304, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-32821452

RESUMO

OBJECTIVE: Blackthorn (Prunus spinosa L. (Rosaceae) is a shrup whose fruits are consumed as food in Turkey. This study was aimed to evaluate antioxidant activity of methanol extract of P. spinosa and its cytotoxic effects on cancer cell lines. METHOD: Methanol extract of P. spinosa fruit was evaluated for its in vitro cytotoxic activity on multiform (GBM) brain cancer (LN229, U87 and T98G) and pancreas cancer (PANC-1 and AsPC-1) cell lines. Cell viability assays were performed by calculating the percentage of viable cells using a luminescence system, and spectrophotometrically. measuring its antioxidant ABTS and DPPH radical scavenging activities. Differences were considered as statistically significant at p*<0.001 and p**<0.0005 according to unpaired student t-test. RESULTS: Methanol extract of P. spinosa fruit showed 2548±18 mg GAE/100 g correspon-ding to the total phenolic content, and moderate antioxidant activity (0.1896±0.1143 and 0.0729±0.0348) by ABTS� and DPPH� assays. CONCLUSION: To the best of our knowledge, after evaluating the results of brain and pancreas cancer cell lines, significant cytotoxic activities with 50-63% cell viability of GBM brain cancer cells were determined while no cytotoxicity was observed on pancreas cancer cell lines, PANC-1; and AsPC-1. The results of this study showed that the methanol extract of P. spinosa fruit has significant antioxidant capacity and leads to statistically significant decreased viability on glioblastoma brain cancer cells.

20.
J Pharm Pharmacol ; 70(10): 1401-1413, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29984824

RESUMO

OBJECTIVES: The objective of this study was to investigate the wound healing activity of Capparis ovata var. palaestina fruit extract in mice. For this aim, wound healing, in vitro antimicrobial and antioxidant activities, HPLC, phenolic and flavonoid compounds analyses were performed. METHODS: The wound healing effect was tested by excisional wound model. Wound closure was measured for 14 days and at 14th day wound healing was assessed by levels of TGF-ß, VEGF, COL1A1 and angiogenesis, granulation tissue thickness, epidermal and dermal regeneration. The antioxidant activity was calculated by DPPH and ABTS free radical scavenging assays. Antimicrobial ability was evaluated by minimum inhibitory concentration and agar well diffusion tests. KEY FINDINGS: The extract indicated significant antioxidant activity while it also exhibited antimicrobial activity. Rutin was found in the extract according to HPLC study. Moreover, the extract was found to have rich phenolic and flavonoid contents. Histological evaluation showed that extract group induced significant (P < 0.001) wound healing activity compared to control group. Furthermore, extract group increased wound healing rates by promoting granulation tissue, epidermal regeneration, angiogenesis, collagen, TGF-ß and VEGF. CONCLUSIONS: The results clarified that the extract possesses antioxidant, antimicrobial activity and thus could provide a valuable contribution to the wound healing.


Assuntos
Capparis/química , Extratos Vegetais/farmacologia , Cicatrização/efeitos dos fármacos , Indutores da Angiogênese/farmacologia , Animais , Anti-Infecciosos/farmacologia , Antioxidantes/farmacologia , Colágeno Tipo I/metabolismo , Cadeia alfa 1 do Colágeno Tipo I , Frutas/química , Masculino , Camundongos , Testes de Sensibilidade Microbiana , Extratos Vegetais/química , Pele/efeitos dos fármacos , Pele/metabolismo , Fator de Crescimento Transformador beta/metabolismo , Fator A de Crescimento do Endotélio Vascular/metabolismo
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