Posted by admin on Aug 31, 2023 in |
Objective: This investigation aimed to formulate, optimize and evaluate the matrix-type transdermal patch of norfloxacin for antibacterial activity by incorporating different polymer concentrations and penetration enhancers. Methods: Nine formulations were prepared by a solvent evaporation method using ethyl cellulose dibutyl phthalate, tea tree oil, and tulsi oil at concentrations (0.25%, 0.5%, 1%) as penetration enhancers. Characterization done FTIR, DSC, SEM, skin permeation study and antibacterial activity. The patch has uniform weight and low moisture content based on physicochemical evaluation and in vitro characterization. The FTIR shows no or very minor changes in main drug peaks in the IR spectra of a mixture of drug and pure drug. SEM shows smooth surface and uniform drug distribution. In skin permeation study, a combination of tea tree oil and tulsi oil showeaug two-fold increase in drug relea, indicatinged Higuchi release kinetics. Result: 2-fold increase in permeation of transdermal patch as compared to pure drug. Conclusion: Norfloxacin could be delivered through the transdermal patches by incorporating natural permeation enhancers and combining hydrophobic and...
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Posted by admin on Aug 31, 2023 in |
Objective: Evaluation of in-vitro anti-cataract activity on the Cucumis melo L ethanolic extract seeds by glucose-induced cataract in incubated goat lenses. Methods: Anticataract activity is performed by using an isolated goat lens. The goat lens was divided into six groups. Group I: Lens was incubated in artificial aqueous Humor (Glucose 5.5 mM). Group II: Lens was incubated with artificial aqueous humor (Glucose 55 mM). Group III: Lens was incubated in artificial aqueous Humor (Glucose 55 mM) + 40 μg/ml of Ascorbic Acid; Group IV, V, and IV: Lens was incubated in artificial aqueous humor (Glucose 55 Mm) + 20 μg/ml, 40 μg/ml and 60 μg/ml of ethanolic extract of seeds on Cucumis melo L respectively and subjected to photographic evaluation for opacity; The lens was homogenized using tris buffer, and total protein and water-soluble proteins content were determined. Results: Photographic examination of the eyes showed that treatment with ethanolic extracts of the seeds of Cucumis melo L retarded the progression of lens opacification. Vitamin A, Ascorbic acid, β-carotene, Carotenoids, and Flavonoids these phytoconstituents possess antioxidant properties to reduce the...
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Posted by admin on Aug 31, 2023 in |
This review aims to provide a brief overview of different mechanisms involved in the pathophysiology of asthma, a variety of cells, and mediators released from these cells, which have an important role in the pathophysiology of asthma. Asthma is a heterogeneous disease which having complex pathophysiology and affects many individuals. Asthma is an inflammatory disease in the airway, leading to airway hyperresponsiveness, obstruction, mucus hyper-production, and airway wall remodeling. Status asthmatics is characterized by hypoxemia, hypercarbia, and secondary respiratory failure. The structural, mechanical, and inflammatory abnormalities related to asthma and the different mediators like histamine, cytokines, leukotrienes, thromboxane’s inflammatory cells eosinophils, mast cells are important in asthma pathophysiology. TGF-h and IL-11 are the main cytokines that are involved in airway remodeling. Mast cells are responsible for initiating inflammatory responses after exposure to allergens and the resulting immediate bronchoconstriction. Macrophages releasing the mediators may be responsible for amplifying the inflammatory process. Dendritic cells act as antigen-presenting cells and play a role in the chemotaxis of T cells. Eosinophils are a...
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Posted by admin on Aug 31, 2023 in |
Epilepsy is a common neurological disorder in clinical practice requiring newer targets for its efficient treatment. Recently, brain renin-angiotensin system has gained immense importance because of its involvement in seizure regulation. Hence, the present study was planned to evaluate whether angiotensin II AT1 receptor antagonists possess anticonvulsant activity in experimental animals. Forty- eight Swiss albino mice were divided into 8 groups: Control – distilled water (5ml/kg), Standard – ethosuximide 200mg/kg, T1- telmisartan 5mg/kg, T2- telmisartan 8mg/kg, V1- valsartan 10mg/kg, V2- valsartan 20mg/kg, E+T2- ethosuximide 200mg/kg+ telmisartan 8mg/kg, E+V2- ethosuximide 200mg/kg+ valsartan 20mg/kg. After 1 hour of administration of control, test and standard drugs intraperitonally, convulsions were induced by administering pentylenetetrazol (60mg/kg- s.c). The time of onset of myoclonic spasm and clonic convulsion were the parameters recorded. The results were analysed by one-way- ANOVA followed by Dunnett’s t test. Telmisartan 8mg/kg, valsartan 10mg/kg, valsartan 20mg/kg significantly increased the latency of onset of myoclonic spasm and clonic convulsion (p< 0.05) as compared to control. The combinations of (ethosuximide + telmisartan 8mg/kg)...
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Posted by admin on Aug 31, 2023 in |
Obesity is related with a number of metabolic difficulties, growing obesity may disrupt hormonal and metabolic systems, which may lead to the body storing extra energy in a variety of forms. The amount of total energy the body has stored as fat is negatively associated with the rate at which leptin circulates in the bloodstream, which is predominantly produced by adipose tissue. It is widely accepted that central serotonin contributes to the inhibition of hunger in mammals and recent reviews have elucidated the mechanisms behind these effects. The hypothalamus regulates hunger as well as energy homeostasis. The digestive tract and adipose tissues are just two examples of peripheral afferent signals that complex brain networks combine to create efferent responses that regulate food intake and energy use. Origin of ghrelin in the circulation is the abdomen and gut. Dopaminergic circuits are used to control intake of food, according to research on human brain imaging. According to the carbohydrate-insulin paradigm, adipose tissue’s endocrine dysregulation rather than acting as a passive fat-accumulator...
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