scholarly journals Chemomodulatory Effect of Capsaicin Encapsulated Chitosan Nanoparticles on Lipids, Lipoproteins and Glycoprotein Components in DMBA Induced Mammary Carcinogenesis in Rats

Author(s):  
Kalaiyarasi Dhamodharan
Author(s):  
Kalaiyarasi Dhamodharan ◽  
Manobharathi Vengaimaran ◽  
Mirunalini Sankaran

Background: Capsaicin is a powerful phytochemical spotted in chilies, starkly tied up with a bunch of health benefits but its clinical applications in cancer therapy are limited due to its poor solubility, and low bioavailability. Nanotechnology offers a strategy to discover new formulations for hydrophobic agent. Aim: The main intent of the current research was to investigate the effect of Capsaicin encapsulated chitosan nanoparticles (CAP@CS-NP) on 7,12-Dimethylbenz(a)anthracene (DMBA) induced mammary carcinogenesis in rats. Methodology: Mammary tumor was induced in female rats by injecting DMBA (25mg/kg b.wt) at the first week of the experiment. After 7 weeks, CAP@CS-NP (4mg/kg b.wt) was administered orally to DMBA induced tumor bearing rats for 21 days (thrice per week). The experiment was terminated at the end of the 14th week and their plasma and tissue sections were analyzed. Results: We found that significantly elevated levels of lipid peroxidation and diminished levels of antioxidant status in plasma, liver and mammary tissues. Increased levels of detoxification phase I enzymes and dropped levels of phase II enzymes in liver and mammary tissues in DMBA induced tumor bearing rats. As a result, oral administration of CAP@CS-NP suppressed the tumor growth, significantly raised body weight and restored abnormal enzymatic levels to near normal ranges. Additionally, histopathological and immunohistochemical analysis were also confirmed that CAP@CS-NP protects DMBA mediated cellular disruption and also inhibits abnormal cell proliferation. Conclusion: These findings suggest that nano encapsulation of CAP@CS-NP could be useful in targeted drug delivery and act as a promising chemotherapeutic agent to treat mammary carcinogenesis.


2019 ◽  
Vol 38 (2) ◽  
pp. 385 ◽  
Author(s):  
Marwa M. El-Naggar ◽  
Wael S. I. Abou-Elmagd ◽  
Ashraf Suloma ◽  
Hamza A. El-Shabaka ◽  
Magdy T. Khalil ◽  
...  

Author(s):  
Sudhakar Sekar ◽  
Shee Sim May

The aim of the study is to formulate a modified release chitosan nanoparticles for the oral delivery of atorvastatin and to study the in vitro release of atorvastatin from chitosan nanoparticles. Atorvastatin-loaded chitosan nanoparticles were prepared with different concentration of cross-linking agent (glutaraldehyde) by emulsion interfacial reaction method. The formed nanoparticles were characterized in terms of size and morphological characteristics by scanning electron microscopy (SEM) and transmission electron microscope (TEM). Spherical and regular nanoparticles with the size range of 100-250nm were formed. Atorvastatin encapsulation efficiency of nanoparticles was found to be highest in ANP3, followed by ANP2 and ANP1. The in vitro release of atorvastatin was studied by membrane diffusion technique. The resulted cumulative percentage of drug released for ANP1, ANP2 and ANP3 were 60.08%, 34.81% and 20.39% respectively. Through this study, the nanoparticles preparation technique has shown to be a promising approach for enhancing the dissolution of hydrophobic drugs like atorvastatin calcium. The application of this novel delivery system offers good therapeutic potential in the management of hypercholesterolemia and dyslipidemia.


2019 ◽  
Vol 56 (2) ◽  
pp. 396-398
Author(s):  
Georgeta Zegan ◽  
Daniela Anistoroaei ◽  
Elena Mihaela Carausu ◽  
Eduard Radu Cernei ◽  
loredana Golovcencu

Amoxicillin and clavulanic acid are two of the most commonly prescribed antibacterial worldwide for treating oral infectious diseases. Oral health is of big importance for well-being and general health. A few novel drug delivery systems were designed for oral treatment and prophylaxis of different diseases in the oral cavity. This work focused on the latest drug delivery development of the most common oral pathologies, namely, periodontitis, oral mucosal infections, dental caries and oral cancer. Herein we reveal the synthesis, characterization and application of chitosan nanoparticles for intracellular transport of the weakly cell-penetrating amoxicillin and clavulanic acid in order to improve their efficacy on bacterial infections.


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