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1.
Curr Drug Deliv ; 2024 Apr 17.
Artigo em Inglês | MEDLINE | ID: mdl-38638050

RESUMO

M. oleifera is the most adapted tree species in different medicinal eco-systems and has resilience against climate changes. This multiple-use tree provides healthy foods, snacks, honey, and fuel. Besides this, it has immense promising applicationsby offering antimicrobial and antibacterial activities for targeted uses. This validates the court of Hippocrates that let food be the medicine and medicine be the food for which moringa qualifies. In view of this, the antioxidant and in vitro antibacterial potency of the hydro-ethanolic extract of M. oleifera was evaluated on clinically isolated multidrug-resistant strains of Staphylococcus aureus. Furthermore, in vivo, the healing response of M. oleifera extract was analysed on corneal ulcers induced in rabbit eyes infected with methicillin-resistant Staphylococcus aureus. TheM. oleifera extract exhibited exponential antioxidant activity. In-vitro antibacterial activity was evaluated by agar well diffusion assay showing zone of inhibition ranging from 11.05±0.36 to 20±0.40 mm at concentrations of 20, 40, 80, and 160 mg/ml, whereas, in our finding, no zone of inhibition was observed below 20 mg/ml concentration, which indicated that there is threshold limit below which the antibacterial activity of M. oleifera extract is not observed. Furthermore, continuous application of 3% and 5% M. oleifera extract (eye drop) four times a day for 14 consecutive days showed a significant healing response of the eyes of rabbits with corneal ulcers. These results suggest that M. oleifera extract could be a viable alternative to existing antibacterial therapies for corneal ulcers. Additionally, there is a possibility of commercial formulation of M. oleifera extract in the form of deliverable pharmaceutical products; therefore, it should be explored further.

2.
Pharm Nanotechnol ; 2024 Mar 18.
Artigo em Inglês | MEDLINE | ID: mdl-38504570

RESUMO

The purpose of this review article is to provide a complete overview of the fastdeveloping topic of biobased nanomaterials and the various uses that they have. An extensive study into the utilization of biological resources for nanotechnology has been motivated by the growing demand for materials that are both sustainable and favorable to the environment. In this review, the different uses of biobased nanomaterials across a variety of fields are investigated. When it comes to drug delivery systems, biosensors, nanocarriers, and catalysts, biobased nanomaterials are interesting choices because of their unique qualities. These properties include biocompatibility, programmable surface chemistry, and inherent functionality. Also, in the biomedical field, biobased nanomaterials offer promising prospects for revolutionizing medical diagnostics and therapies. Their biocompatibility, tunable surface chemistry, and inherent functionalities make them attractive candidates for applications such as targeted drug delivery, imaging contrast agents, and tissue engineering scaffolds. In addition, the study discusses the current difficulties and potential future developments in the industry, emphasizing the necessity of interdisciplinary collaboration and ongoing innovation. The incorporation of nanomaterials derived from biological sources into conventional applications holds tremendous potential for the advancement of sustainable development and provides solutions to global concerns. For the purpose of providing researchers, scientists, and professionals with a complete grasp of the synthesis, characterization, and applications of biobased nanomaterials, the purpose of this review is to serve as a helpful resource.

3.
J Ethnopharmacol ; 328: 117899, 2024 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-38341111

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: This study has important ethnopharmacological implications since it systematically investigated the therapeutic potential of Bacopa monnieri(L.) Wettst. (Brahmi) in treating neurological disorders characterized by oxidative stress-a growing issue in the aging population. Bacopa monnieri, which is strongly rooted in Ayurveda, has long been recognized for its neuroprotective and cognitive advantages. The study goes beyond conventional wisdom by delving into the molecular complexities of Bacopa monnieri, particularly its active ingredient, Bacoside-A, in countering oxidative stress. The study adds to the ethnopharmacological foundation for using this herbal remedy in the context of neurodegenerative disorders by unravelling the scientific underpinnings of Bacopa monnieri's effectiveness, particularly at the molecular level, against brain damage and related conditions influenced by oxidative stress. This dual approach, which bridges traditional wisdom and modern investigation, highlights Bacopa monnieri's potential as a helpful natural remedy for oxidative stress-related neurological diseases. AIM OF THE STUDY: The aim of this study is to investigate the detailed molecular mechanism of action (in vitro, in silico and in vivo) of Bacopa monnieri (L.) Wettst. methanolic extract and its active compound, Bacoside-A, against oxidative stress in neurodegenerative disorders. MATERIALS AND METHODS: ROS generation activity, mitochondrial membrane potential, calcium deposition and apoptosis were studied through DCFDA, Rhodamine-123, FURA-2 AM and AO/EtBr staining respectively. In silico study to check the effect of Bacoside-A on the Nrf-2 and Keap1 axis was performed through molecular docking study and validated experimentally through immunofluorescence co-localization study. In vivo antioxidant activity of Bacopa monnieri extract was assessed by screening the oxidative stress markers and stress-inducing hormone levels as well as through histopathological analysis of tissues. RESULTS: The key outcome of this study is that the methanolic extract of Bacopa monnieri (BME) and its active component, Bacoside-A, protect against oxidative stress in neurodegenerative diseases. At 100 and 20 µg/ml, BME and Bacoside-A respectively quenched ROS, preserved mitochondrial membrane potential, decreased calcium deposition, and inhibited HT-22 mouse hippocampus cell death. BME and Bacoside-A regulated the Keap1 and Nrf-2 axis and their downstream antioxidant enzyme-specific genes to modify cellular antioxidant machinery. In vivo experiments utilizing rats subjected to restrained stress indicated that pre-treatment with BME (50 mg/kg) downregulated oxidative stress markers and stress-inducing hormones, and histological staining demonstrated that BME protected the neuronal cells of the Cornu Ammonis (CA1) area in the hippocampus. CONCLUSIONS: Overall, the study suggests that Bacopa monnieri(L.) Wettst. has significant potential as a natural remedy for neurodegenerative disorders, and its active compounds could be developed as new drugs for the prevention and treatment of oxidative stress-related diseases.


Assuntos
Bacopa , Doenças Neurodegenerativas , Saponinas , Camundongos , Ratos , Animais , Antioxidantes/farmacologia , Antioxidantes/metabolismo , Proteína 1 Associada a ECH Semelhante a Kelch/metabolismo , Espécies Reativas de Oxigênio/metabolismo , Cálcio/metabolismo , Simulação de Acoplamento Molecular , Saponinas/farmacologia , Fator 2 Relacionado a NF-E2/metabolismo , Estresse Oxidativo , Extratos Vegetais/farmacologia
4.
J Ethnopharmacol ; 321: 117498, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-38030021

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Iris Kashmiriana Baker, a traditional medicinal plant, is native to Asia, found in India, Nepal, Afghanistan, Pakistan, as name indicates majorly it's found in Kashmir region of India. Ethnopharmacologically this plant has been used there for the management of joint pain, but there was no scientific literature available. This species also comes under critically endangered species. AIM OF THE STUDY: The current study aims to evaluate the effect of Iris kashmiriana Baker against nociception and rheumatoid arthritis in experimental rats with In-silico model. MATERIAL AND METHODS: Various extracts of the plant were investigated for their in-vitro antioxidant activity. Acute inflammation and FCA induced in rat model, then acetic acid-induced writhing in mice were used. These anti-rheumatic results were justified by the computational method. RESULTS: The total phenolic and flavonoid concentration of HE extracts were found to be 95.30 ± 2.80 mg/g and 18.18 ± 5.88 mg/g respectively. IC50 and maximum inhibition of HE extracts against DPPH and H2O2 were also effective. Among different doses, 400 mg/kg of HE extracts showed significant (p<0.001) reduction in acute inflammation (16.42 %), in analgesic activity, the HE extract was found statistically (p<0.001) reduced (60.15 %) and in arthritis model, maximum inflammation reduced (25.9%) was found with hydro ethanol extract and statistical significant (p<0.001). and the paw thickness was reduced (27.4 %). Antioxidant activity of HE extract was found to be optimum (37.01%, p<0.001), Superoxide dismutase concentration was found to be optimum (65.12%, p<0.001). In Histopathology, HE 400 mg/kg showed mild inflammation only. The weight of the thymus and spleen were also determined and the HE 400 mg/kg extract inhibited the increase in weight of these organs compared with positive group (28.26 %, and 25.11 %), respectively. CONCLUSION: Among all the different extracts and various doses, the iris kashmiriana Baker hydro-ethanolic (60:40) 400 mg/kg extract showed the best response among all different extracts.


Assuntos
Artrite Reumatoide , Extratos Vegetais , Ratos , Camundongos , Animais , Extratos Vegetais/farmacologia , Extratos Vegetais/uso terapêutico , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/uso terapêutico , Antioxidantes/farmacologia , Antioxidantes/uso terapêutico , Nociceptividade , Peróxido de Hidrogênio , Analgésicos/farmacologia , Analgésicos/uso terapêutico , Artrite Reumatoide/induzido quimicamente , Artrite Reumatoide/tratamento farmacológico , Inflamação/tratamento farmacológico , Etanol/uso terapêutico , Paquistão
5.
Naunyn Schmiedebergs Arch Pharmacol ; 397(2): 703-724, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-37615709

RESUMO

The main objective of this review is to highlight the therapeutic potential of allicin, a defense molecule in garlic known for its diverse health benefits, and address the key challenges of its bioavailability and stability. The research further aims to evaluate various formulation strategies and nanotechnology-based delivery systems that can resolve these issues and improve allicin's clinical efficacy, especially in cancer therapy. We conducted a comprehensive review of the available literature and previous studies, focusing on the therapeutic properties of allicin, its bioavailability, stability issues, and novel formulation strategies. We assessed the mechanism of action of allicin in cancer, including its effects on signaling pathways, cell cycle, apoptosis, autophagy, and tumor development. We also evaluated the outcomes of both in vitro and in vivo studies on different types of cancers, such as breast, cervical, colon, lung, and gastric cancer. Despite allicin's significant therapeutic benefits, including cardiovascular, antihypertensive, cholesterol-lowering, antimicrobial, antifungal, anticancer, and immune-modulatory activity, its clinical utility is limited due to poor stability and unpredictable bioavailability. Allicin's bioavailability in the gastrointestinal tract is dependent on the activity of the enzyme alliinase, and its stability can be affected by various conditions like gastric acid and intestinal enzyme proteases. Recent advances in formulation strategies and nanotechnology-based drug delivery systems show promise in addressing these challenges, potentially improving allicin's solubility, stability, and bioavailability. Allicin offers substantial potential for cancer therapy, yet its application is hindered by its instability and poor bioavailability. Novel formulation strategies and nanotechnology-based delivery systems can significantly overcome these limitations, enhancing the therapeutic efficacy of allicin. Future research should focus on refining these formulation strategies and delivery systems, ensuring the safety and efficacy of these new allicin formulations. Clinical trials and long-term studies should be carried out to determine the optimal dosage, assess potential side effects, and evaluate their real-world applicability. The comparative analysis of different drug delivery approaches and the development of targeted delivery systems can also provide further insight into enhancing the therapeutic potential of allicin.


Assuntos
Dissulfetos , Neoplasias , Humanos , Disponibilidade Biológica , Ácidos Sulfínicos/uso terapêutico , Ácidos Sulfínicos/metabolismo , Ácidos Sulfínicos/farmacologia , Resultado do Tratamento , Neoplasias/tratamento farmacológico
7.
Inflammopharmacology ; 32(1): 307-317, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38085446

RESUMO

Inflammation is a multifaceted biological reaction to a wide range of stimuli, and it has been linked to the onset and progression of chronic diseases such as heart disease, cancer, and diabetes. Inflammatory markers found in the blood, including C-reactive protein, serum amyloid A, fibrinogen, plasma viscosity, erythrocyte sedimentation rate, interleukin-6, and soluble adhesion molecules (like intercellular adhesion molecule-1 and vascular cell adhesion molecule-1), are risk factors for cardiovascular diseases such as coronary heart disease, stroke, and peripheral arterial disease. These markers play a crucial role in understanding and assessing cardiovascular health. Due to this complicated relationship between inflammation and cardiovascular disease, anti-inflammatory agents of natural origin have been the subject of many preclinical and clinical studies in recent years. Eugenol is a natural phenolic compound found in clove oil, nutmeg oil, cinnamon oil, and bay leaf oil, as well as other essential oils. Eugenol has been shown to have anti-inflammatory properties in many forms of experimental inflammation. It may scavenge free radicals, which contribute to inflammation and tissue damage. Various studies also suggest that eugenol can limit the production of inflammatory mediators such as prostaglandins, cytokines, and chemokines. Animal models of arthritis, colitis, and lung damage, as well as human clinical studies, have shown that eugenol has phenomenal anti-inflammatory properties. These properties suggest that eugenol may be able to reduce the risk of cardiovascular diseases.


Assuntos
Doenças Cardiovasculares , Óleos Voláteis , Animais , Humanos , Eugenol/farmacologia , Eugenol/uso terapêutico , Doenças Cardiovasculares/tratamento farmacológico , Fatores de Risco , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/uso terapêutico , Óleos Voláteis/uso terapêutico , Inflamação/tratamento farmacológico , Fatores de Risco de Doenças Cardíacas
8.
Biomed Pharmacother ; 169: 115881, 2023 Dec 31.
Artigo em Inglês | MEDLINE | ID: mdl-37989030

RESUMO

Diabetic retinopathy (DR) is a form of retinal microangiopathy that occurs as a result of long-term Diabetes mellitus (DM). Patients with Diabetes mellitus typically suffer from DR as a progression of the disease that may be due to initiation and dysregulation of pathways like the polyol, hexosamine, the AGE/RAGE, and the PKC pathway, which all have negative impacts on eye health and vision. In this review, various databases, including PubMed, Google Scholar, Web of Science, and Science Direct, were scoured for data relevant to the aforementioned title. The three most common therapies for DR today are retinal photocoagulation, anti-vascular endothelial growth factor (VEGF) therapy, and vitrectomy, however, there are a number of drawbacks and limits to these methods. So, it is of critical importance and profound interest to discover treatments that may successfully address the pathogenesis of DR. Curcumin and ß-glucogallin are the two potent compounds of natural origin that are already being used in various nutraceutical formulations for several ailments. They have been shown potent antiapoptotic, anti-inflammatory, antioxidant, anticancer, and pro-vascular function benefits in animal experiments. Their parent plant species have been used for generations by practitioners of traditional herbal medicine for the treatment and prevention of various eye ailments. In this review, we will discuss about pathophysiology of Diabetic retinopathy and the therapeutic potentials of curcumin and ß-glucogallin one of the principal compounds from Curcuma longa and Emblica officinalis in Diabetic retinopathy.


Assuntos
Curcumina , Diabetes Mellitus , Retinopatia Diabética , Animais , Humanos , Retinopatia Diabética/metabolismo , Curcumina/farmacologia , Curcumina/uso terapêutico , Curcumina/metabolismo , Retina/patologia , Taninos Hidrolisáveis/uso terapêutico , Diabetes Mellitus/metabolismo
9.
Artigo em Inglês | MEDLINE | ID: mdl-37861051

RESUMO

Neurodegenerative disorders are characterized by a gradual but irreversible loss of neurological function. The ability to detect and treat these conditions successfully is crucial for ensuring the best possible quality of life for people who suffer from them. The development of effective new methods for managing and treating neurodegenerative illnesses has been made possible by recent developments in computer technology. In this overview, we take a look at the prospects for applying computational approaches, such as drug design, AI, ML, and DL, to the treatment of neurodegenerative diseases. To review the current state of the field, this article discusses the potential of computational methods for early disease detection, quantifying disease progression, and understanding the underlying biological mechanisms of neurodegenerative diseases, as well as the challenges associated with these approaches and potential future directions. Moreover, it delves into the creation of computational models for the individualization of care for neurodegenerative diseases. The article concludes with suggestions for future studies and clinical applications, highlighting the advantages and disadvantages of using computational techniques in the treatment of neurodegenerative diseases.

10.
Pharmaceuticals (Basel) ; 16(10)2023 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-37895858

RESUMO

Balancing the therapeutic advantages of a medicine with its possible risks and side effects is an important part of medical practice and drug regulation. When a drug is designed to treat a particular disease or medical condition ends up causing additional risks or side effects that lead to the development of other serious health problems, it can have detrimental consequences for patients. This article explores the correlation between persistent proton pump inhibitor (PPI) use and hypertension, a common cardiovascular ailment. While PPIs are beneficial in treating various gastrointestinal problems, their availability without a prescription has resulted in self-medication and long-term use without medical monitoring. Recent findings have revealed a link between long-term PPI usage and increased cardiovascular risks, particularly hypertension. This study investigates the intricate mechanisms underlying PPI's effects, focusing on potential pathways contributing to hypertension, such as endothelial dysfunction, disruption of nitric oxide bioavailability, vitamin B deficiency, hypocalcemia, and hypomagnesemia. The discussion explains how long-term PPI use can disrupt normal endothelial function, vascular control, and mineral balance, eventually leading to hypertension. The article emphasizes the significance of using PPIs with caution and ongoing research to better understand the implications of these medications on cardiovascular health.

11.
Pharm Nanotechnol ; 2023 Oct 10.
Artigo em Inglês | MEDLINE | ID: mdl-37818559

RESUMO

BACKGROUND: It is estimated that there are over 200 million people living with diabetes mellitus (DM) all over the world. It is a metabolic condition caused by decreased insulin action or secretion. Diabetes Mellitus is also known as Type 2 Diabetes Mellitus. Type 1 diabetes mellitus and type 2 diabetes mellitus are the two most common types of DM. Treatment for type 1 diabetes often consists of insulin replacement therapy, while treatment for type 2 diabetes typically consists of oral hypoglycemics. OBJECTIVE: Conventional dosing schedules for the vast majority of these medications come with a number of drawbacks, the most common of which are frequent dosing, a short half-life, and low bioavailability. Thus, innovative and regulated oral hypoglycemic medication delivery methods have been developed to reduce the limitations of standard dose forms. METHODS: The studies and reviews published under the title were looked up in several databases (including PubMed, Elsevier, and Google Scholar). RESULTS: Hydrogels made from biopolymers are three-dimensional polymeric networks that can be physically or chemically crosslinked. These networks are based on natural polymers and have an inherent hydrophilic quality because of the functional groups they contain. They have a very high affinity for biological fluids in addition to a high water content, softness, flexibility, permeability, and biocompatibility. The fact that these features are similar to those of a wide variety of soft living tissues paves the way for several potentials in the field of biomedicine. In this sense, hydrogels offer excellent platforms for the transport of medications and the controlled release of those drugs. Additionally, biopolymer-based hydrogels can be put as coatings on medical implants in order to improve the biocompatibility of the implants and to prevent medical diseases. CONCLUSION: The current review focuses on the most recent advancements made in the field of using biopolymeric hydrogels that are physically and chemically crosslinked, in addition to hydrogel coatings, for the purpose of providing sustained drug release of oral hypoglycemics and avoiding problems that are associated with the traditional dosage forms of oral hypoglycemics.

12.
Ann Med Surg (Lond) ; 85(10): 4954-4963, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37811101

RESUMO

Objective: This review aims to explore the impact of the COVID-19 pandemic on mental health, with a focus on the physiological and psychological consequences, including comorbidities. The goal is to understand the direct and indirect populations affected by mental distress and identify potential interventions. Methodology: A comprehensive literature search was conducted using various databases, including Google Scholar, ResearchGate, ScienceDirect, PubMed, PLoS One, and Web of Science. The search utilized relevant keywords to investigate the direct and indirect impacts of COVID-19 on mental health. The selected articles were critically evaluated and analyzed to identify key findings and insights. Main findings: Mental health, being an intrinsic component of overall well-being, plays a vital role in physiological functioning. The COVID-19 pandemic, caused by the emergence of the novel SARS-CoV-2 virus, has had a devastating global impact. Beyond the respiratory symptoms, individuals recovering from COVID-19 commonly experience additional ailments, such as arrhythmia, depression, anxiety, and fatigue. Healthcare professionals on the frontlines face an elevated risk of mental illness. However, it is crucial to recognize that the general population also grapples with comparable levels of mental distress. Conclusion: The COVID-19 pandemic has underscored the significance of addressing mental health concerns. Various strategies can help mitigate the impact, including counselling, fostering open lines of communication, providing mental support, ensuring comprehensive patient care, and administering appropriate medications. In severe cases, treatment may involve the supplementation of essential vitamins and antidepressant therapy. By understanding the direct and indirect impacts of COVID-19 on mental health, healthcare providers and policymakers can develop targeted interventions to support individuals and communities affected by the pandemic. Continued research and collaborative efforts are essential to address this pervasive issue effectively.

13.
Curr Drug Targets ; 24(13): 1066-1078, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37718521

RESUMO

BACKGROUND: Statins, especially simvastatin promote bone formation by stimulating the activity of osteoblasts and suppressing osteoclast activity via the BMP-Smad signaling pathway. Statins present the liver first-pass metabolism. This study attempts to fabricate and evaluate simvastatin functionalized hydroxyapatite encapsulated in poly(lactic-co-glycolic) acid (PLGA) nanoparticles (HSIM-PLGA NPs) administered subcutaneously with sustained release properties for effective management of osteoporosis. METHODS: Simvastatin functionalized hydroxyapatite (HSIM) was prepared by stirring and validated by docking studies, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and X-ray diffraction (XRD). Further, HSIM-loaded PLGA nanoparticles (HSIM-PLGA NPs) were developed via the solvent emulsification method. The nanoparticles were evaluated for zeta potential, particle size, entrapment efficiency, stability studies, and in vitro drug release studies. in vitro binding affinity of nanoparticles for hydroxyapatite was also measured. Bone morphology and its effect on bone mineral density were examined by using a glucocorticoid-induced osteoporosis rat model. RESULTS: The optimized nanoparticles were found to be amorphous and showed no drug-polymer interaction. The particle size of formulated nanoparticles varied from 196.8 ± 2.27nm to 524.8 ± 5.49 nm and the entrapment efficiency of nanoparticles varied from 41.9 ± 3.44% to 70.8 ± 4.46%, respectively. The nanoparticles showed sustained release behaviour (75% in 24 hr) of the drug followed by non-fickian drug release. The nanoparticles exhibited high binding affinity to bone cell receptors, increasing bone mineral density. A significant difference in calcium and phosphorous levels was observed in disease and treatment rats. Porous bone and significant improvement in porosity were observed in osteoporotic rats and treated rats, respectively (P < 0.05). CONCLUSION: Bone-targeting nanoparticles incorporating functionalized simvastatin can target bone. Thus, in order to distribute simvastatin subcutaneously for the treatment of osteoporosis, the developed nanoparticles may act as a promising approach.


Assuntos
Inibidores de Hidroximetilglutaril-CoA Redutases , Nanopartículas , Osteoporose , Ratos , Animais , Ácido Poliglicólico/química , Ácido Poliglicólico/uso terapêutico , Ácido Láctico/química , Ácido Láctico/uso terapêutico , Preparações de Ação Retardada/uso terapêutico , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Portadores de Fármacos/química , Copolímero de Ácido Poliláctico e Ácido Poliglicólico/uso terapêutico , Osteoporose/induzido quimicamente , Osteoporose/tratamento farmacológico , Hidroxiapatitas/uso terapêutico , Sinvastatina/farmacologia , Sinvastatina/uso terapêutico , Sinvastatina/química , Nanopartículas/química , Tamanho da Partícula
14.
Pharmaceuticals (Basel) ; 16(7)2023 Jun 21.
Artigo em Inglês | MEDLINE | ID: mdl-37513820

RESUMO

The neurodegenerative condition known as Parkinson's disease (PD) is brought on by the depletion of dopaminergic neurons in the basal ganglia, which is the brain region that controls body movement. PD occurs due to many factors, from which one of the acknowledged effects of oxidative stress is pathogenic pathways that play a role in the development of Parkinson's disease. Antioxidants, including flavonoids, vitamins E and C, and polyphenolic substances, help to reduce the oxidative stress brought on by free radicals. Consequently, this lowers the risk of neurodegenerative disorders in the long term. Although there is currently no cure for neurodegenerative illnesses, these conditions can be controlled. The treatment of this disease lessens its symptoms, which helps to preserve the patient's quality of life. Therefore, the use of naturally occurring antioxidants, such as polyphenols, which may be obtained through food or nutritional supplements and have a variety of positive effects, has emerged as an appealing alternative management strategy. This article will examine the extent of knowledge about antioxidants in the treatment of neurodegenerative illnesses, as well as future directions for research. Additionally, an evaluation of the value of antioxidants as neuroprotective agents will be provided.

15.
Pharm Nanotechnol ; 11(4): 324-338, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36892113

RESUMO

BACKGROUND: Bioavailability is the dissimilarity between the total amount of drug exposure to a person and the actual dose received by his body. The difference in bioavailability between formulations of a given drug can have clinical implications. METHODS: Poor aqueous solubility, inappropriate partition coefficient, high first-pass metabolism, narrow absorption window, and acidic pH of the stomach are the main reasons behind the low bioavailability of drugs. There are three substantial methods to vanquish these bioavailability issues, namely pharmacokinetic, biological, and pharmaceutical approaches. RESULTS: In the pharmacokinetic approach a drug molecule is improved by making alterations in its chemical structure. In the biological approach, the course of administration of the drug is changed; for example, if a drug has very less oral bioavailability, it can be injected as parenteral or some other route if feasible. In the pharmaceutical approach to enhance bioavailability, the physiochemical properties of the drug or formulation are modified. It is cost-effective, less time-consuming, and the risk factor is also minimum. Co-solvency, particle size reduction, hydrotrophy, solid dispersion, micellar solubilisation, complexation, and colloidal drug delivery systems are some of the commonly used methods to enhance the dissolution profiles of drugs via the pharmaceutical approach. Similar to liposomes, niosomes are also vesicular carrier systems but non-ionic surfactants are used instead of phospholipids in their formulation, i.e., their bilayer is comprised of non-ionic surfactants that encircle the aqueous compartment. The niosomes are presumed to raise the bioavailability of poorly water-soluble drugs by increasing their uptake by the M cells present in Peyer's patches of lymphatic tissues of the intestine. CONCLUSION: Niosomal technology has become an attractive method to overcome several limitations due to its various merits like biodegradability, high stability, non-immunogenic nature, low cost, and flexibility to incorporate lipophilic as well as hydrophilic drugs. The bioavailability of many BCS class II and IV drugs has been successfully enhanced using niosomal technology, like Griseofulvin, Paclitaxel, Candesartan Cilexetil, Carvedilol, Clarithromycin, Telmisartan, and Glimepiride. Niosomal technology has also been exploited for brain targeting via nasal delivery for many drugs like Nefopam, Pentamidine, Ondansetron HCl, and Bromocriptine mesylate. Based on this data, it can be concluded that niosomal technology has increased importance in bioavailability enhancement and improving the overall performance of molecules in vitro and in vivo. Thus, niosomal technology holds tremendous potential for scale-up applications, overcoming the drawbacks of conventional dosage forms.


Assuntos
Sistemas de Liberação de Medicamentos , Lipossomos , Humanos , Lipossomos/química , Disponibilidade Biológica , Água/química , Tecnologia , Tensoativos/química
16.
Diabetol Metab Syndr ; 15(1): 17, 2023 Feb 13.
Artigo em Inglês | MEDLINE | ID: mdl-36782201

RESUMO

Future targets are a promising prospect to overcome the limitation of conventional and current approaches by providing secure and effective treatment without compromising patient compliance. Diabetes mellitus is a fast-growing problem that has been raised worldwide, from 4% to 6.4% (around 285 million people) in past 30 years. This number may increase to 430 million people in the coming years if there is no better treatment or cure is available. Ageing, obesity and sedentary lifestyle are the key reasons for the worsening of this disease. It always had been a vital challenge, to explore new treatment which could safely and effectively manage diabetes mellitus without compromising patient compliance. Researchers are regularly trying to find out the permanent treatment of this chronic and life threatening disease. In this journey, there are various treatments available in market to manage diabetes mellitus such as insulin, GLP-1 agonist, biguanides, sulphonyl ureas, glinides, thiazolidinediones targeting the receptors which are discovered decade before. PPAR, GIP, FFA1, melatonin are the recent targets that already in the focus for developing new therapies in the treatment of diabetes. Inspite of numerous preclinical studies very few clinical data available due to which this process is in its initial phase. The review also focuses on the receptors like GPCR 119, GPER, Vaspin, Metrnl, Fetuin-A that have role in insulin regulation and have potential to become future targets in treatment for diabetes that may be effective and safer as compared to the conventional and current treatment approaches.

17.
Artigo em Inglês | MEDLINE | ID: mdl-36056854

RESUMO

BACKGROUND: Uncoupling proteins (UCPs) are unpaired electron carriers that uncouple oxygen intake by the electron transport chain from ATP production in the inner membrane of the mitochondria. The physiological activities of UCPs have been hotly contested, and the involvement of UCPs in the pathogenesis and progression of diabetes mellitus is among the greatest concerns. UCPs are hypothesised to be triggered by superoxide and then reduce mitochondrial free radical production, potentially protecting diabetes mellitus patients who are experiencing oxidative stress. OBJECTIVES: The objectives of the study are to find out the newest ways to treat diabetes mellitus through protein uncoupling. METHODS: Research and review papers are collected from different databases like google scholar, PubMed, Mendeley, Scopus, Science Open, Directory of open access journals, and Education Resources Information Center, using different keywords such as "uncoupling proteins in diabetes mellitus treatment", "UCP 1", "UCP 2", and 'UCP 3". RESULTS: UCP1, UCP2, and UCP 3 are potential targets as uncoupling proteins for the treatment of diabetes mellitus for new drugs. New drugs treat the disease by reducing oxidative stress through thermogenesis and energy expenditure. CONCLUSION: UCP1, UCP2, and UCP3 have a role in fatty acid metabolism, negative control of insulin production, and insulin sensitivity by beta-cells. Polymorphisms in the UCP 1, 2, and 3 genes significantly reduce the risk of developing diabetes mellitus. Protein uncoupling indirectly targets the GPCR and islet of Langerhans. This review summarises the advances in understanding the role of UCP1, UCP2, and UCP3 in diabetes mellitus.


Assuntos
Diabetes Mellitus , Canais Iônicos , Humanos , Canais Iônicos/genética , Proteínas Mitocondriais/genética , Diabetes Mellitus/tratamento farmacológico , Diabetes Mellitus/metabolismo , Proteínas de Desacoplamento Mitocondrial/metabolismo , Metabolismo Energético/fisiologia
18.
Biochem Pharmacol ; 206: 115284, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36209841

RESUMO

Prolonged glucocorticoid treatment often leads to glucocorticoid-induced osteoporosis (GIOP), a common iatrogenic complication. This study has explored the anti-osteoporotic potential of semi-synthetic compound, pterostilbene isothiocyanate (PTER-ITC) in GIOP rat model and bone formation potential in vitro. Dysregulated bone-remodelling leads to osteoporosis. PTER-ITC has shown anti-osteoclastogenic activity in vitro. However, its molecular target remains unidentified, which has been explored in this study through in silico and experimental approaches. Alizarin Red S and von-Kossa staining, and alkaline phosphatase (ALP) activity showed the osteogenic differentiation potential of PTER-ITC in pre-osteoblastic mouse MC3T3-E1 and human hFOB 1.19 cells, further, confirmed through the expressions of osteogenic markers at transcriptional (RT-qPCR) and translational (immunoblotting) levels. The anti-osteoclastogenic property of PTER-ITC was confirmed through inhibition of actin ring formation in mouse RAW 264.7 and human THP-1 macrophagic cells. Molecular docking and molecular dynamic simulation showed that PTER-ITC inhibited the crucial osteoclastogenic RANK/TRAF6 interaction, which was further confirmed biochemically through co-immunoprecipitation assay. Osteoporotic bone architecture [validated through scanning electron microscopy (SEM), X-ray radiography, and micro-computed tomography (µ-CT)], physiology (confirmed through compression testing, Young's modulus and stress versus strain output) and histology (verified through hematoxylin-eosin, Alizarin Red S, von-Kossa and Masson-trichrome staining) of PTER-ITC-treated GIOP female Wistar rats were assuaged. Osteoporotic amelioration through PTER-ITC treatment was further substantiated through serum biomarkers, like, parathyroid hormone (PTH), ALP, calcium (Ca2+), Procollagen type I N-terminal propeptide (P1NP), and 25-hydroxy vitamin D. In conclusion, this study identifies the molecular target of PTER-ITC in impeding osteoclastogenesis and facilitating osteogenesis to ameliorate osteoporosis.


Assuntos
Isotiocianatos , Osteogênese , Osteoporose , Estilbenos , Animais , Feminino , Humanos , Camundongos , Ratos , Diferenciação Celular , Glucocorticoides/efeitos adversos , Isotiocianatos/farmacologia , Simulação de Acoplamento Molecular , Osteoblastos/metabolismo , Osteoporose/induzido quimicamente , Osteoporose/tratamento farmacológico , Osteoporose/metabolismo , Ratos Wistar , Fator 6 Associado a Receptor de TNF/metabolismo , Microtomografia por Raio-X , Estilbenos/farmacologia , Receptor Ativador de Fator Nuclear kappa-B
19.
Biomater Adv ; 139: 212980, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35882136

RESUMO

Full-thickness wounds are difficult to heal spontaneously. Scaffolds, meant for treating full-thickness wounds, should ensure proper tissue regeneration, both structurally and functionally. An ideal scaffold should mimic the physical, mechanical and biochemical properties of natural skin. However, available mono- or bi-layer skin scaffolds lack in the precise architecture and functionality, thus, failing to provide scar-free regeneration of full-thickness skin wounds. These unmet challenges of scar-free skin regeneration have been addressed in the present study for the first time. This research deals with the synthesis of a low-cost, structurally and functionally graded single unit biodegradable polymeric scaffold. The functional gradient in this scaffold was achieved by varying polymer concentration and electrospinning parameters. This gradient in the scaffold provided the required microenvironment for proper functional and structural reconstruction of all the layers of natural skin. The mechanical property of the scaffold matched that of the natural skin. Besides, the degradation kinetics of the scaffold was in coordination with the regeneration time for the full-thickness wound. The porosity and hydrophilicity gradients of the scaffold helped it mimic the in vivo hypodermal, dermal and epidermal microenvironments of the skin, simultaneously. Co-culturing PCS-201 (dermal fibroblasts) and HaCaT (keratinocytes) on the scaffold resulted in successful regeneration through cellular proliferation, differentiation and organization of the skin tissue. The scaffold also displayed better wound healing in vivo, in terms of speedy wound closure and proper tissue regeneration, in comparison to the standard treatment. Altogether, this study successfully established a simple, one-step synthesis process of a functionally graded, bioresorbable scaffold for scar-free, native-like, structural and functional regeneration of full-thickness skin wounds. Due to cost-effectiveness, easy synthesis process and microarchitectural features, the designed scaffold possesses a potential of translation to a good commercial wound healing product.


Assuntos
Pele Artificial , Tecidos Suporte , Implantes Absorvíveis , Cicatriz , Humanos , Tecidos Suporte/química , Cicatrização
20.
Prev Nutr Food Sci ; 27(1): 50-62, 2022 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-35465108

RESUMO

This study investigated the protective effect of extracts from flowers of Brassica oleracea L. var. italica Plenck on type 2 diabetes mellitus and its associated disorders. Three different doses of each extract (petroleum ether, ethanol, and aqueous) were administered orally for 42 days. Biochemical parameters, behavioral studies, and histological studies were measured at different periods. Mortality was found to be nil up to 2,000 mg/kg. Statistically significant (P<0.001) improvement in serum glucose level was observed in the groups receiving 400 mg/kg of petroleum ether, aqueous, or ethanol extracts compared with the negative control group. Insulin level was decreased by aqueous extracts, whereas lipid profiles were improved by aqueous and ethanol extracts. A reduction in transfer latency was observed in treatments of all three extract types. Ethanol extract treatment (400 mg/kg) showed maximum percentage inhibition in a lipid peroxidation assay. Additionally, the aqueous and ethanol extract treatments markedly reduced tumor necrosis factor-α, interleukin-6, and glycosylated hemoglobin levels. Histological results showed that high doses of extracts alleviated the damages induced by type 2 diabetes mellitus in various organs and bones. Based on the results of this study, it can be concluded that B. oleracea has the potential to alleviate type 2 diabetes mellitus.

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