scholarly journals Target drug delivery system as a new scarring modulation after glaucoma filtration surgery

2011 ◽  
Vol 6 (1) ◽  
pp. 64 ◽  
Author(s):  
Tingting Shao ◽  
Xiaoning Li ◽  
Jian Ge
2020 ◽  
Vol 35 (1) ◽  
pp. 15-27 ◽  
Author(s):  
Taicheng Lu ◽  
Zhenzhen Nong ◽  
Liying Wei ◽  
Mei Wei ◽  
Guo Li ◽  
...  

In this study, a transferrin/folic acid double-targeting graphene oxide drug delivery system loaded with doxorubicin was designed. Graphene oxide was prepared by ultrasound improved Hummers method and was modified with Pluronic F68, folic acid, and transferrin to decrease its toxicity and to allow dual-targeting. The results show that the double target drug delivery system (TFGP*DOX) has good and controllable drug delivery performance with no toxicity. Moreover, TFGP*DOX has a better inhibitory effect on SMMC-7721 cells than does a single target drug delivery system (FGP*DOX). The results of drug release analysis and cell inhibition studies showed that TFGP*DOX has a good sustained release function that can reduce the drug release rate in blood circulation over time and improve the local drug concentration in or near a targeted tumor. Therefore, the drug loading system (TFGP*DOX) has potential application value in the treatment of hepatocellular carcinoma.


2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Yan Lin ◽  
Yujie Wan ◽  
Xingjie Du ◽  
Jian Li ◽  
Jun Wei ◽  
...  

Abstract Background Spinal Cord injury (SCI) is a kind of severe traumatic disease. The inflammatory response is a significant feature after SCI. Tetramethylpyrazine (TMP), a perennial herb of umbelliferae, is an alkaloid extracted from ligustici. TMP can inhibit the production of nitric oxide and reduce the inflammatory response in peripheral tissues. It can be seen that the therapeutic effect of TMP on SCI is worthy of affirmation. TMP has defects such as short half-life and poor water-solubility. In addition, the commonly used dosage forms of TMP include tablets, dropping pills, injections, etc., and its tissue and organ targeting is still a difficult problem to solve. To improve the solubility and targeting of TMP, here, we developed a nanotechnology-based drug delivery system, TMP-loaded nanoparticles modified with HIV trans-activator of transcription (TAT-TMP-NPs). Results The nanoparticles prepared in this study has integrated structure. The hemolysis rate of each group is less than 5%, indicating that the target drug delivery system has good safety. The results of in vivo pharmacokinetic studies show that TAT-TMP-NPs improves the bioavailability of TMP. The quantitative results of drug distribution in vivo show that TAT-TMP-NPs is more distributed in spinal cord tissue and had higher tissue targeting ability compared with other treatment groups. Conclusions The target drug delivery system can overcome the defect of low solubility of TMP, achieve the targeting ability, and show the further clinical application prospect.


2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Shi Zeng ◽  
Fengbo Wu ◽  
Bo Li ◽  
Xiangrong Song ◽  
Yu Zheng ◽  
...  

An amphiphilic polymer RGD-PEG-Chol which can be produced in large scale at a very low cost has been synthesized successfully. The synthesized intermediates and final products were characterized and confirmed by1H nuclear magnetic resonance spectrum (1H NMR) and Fourier transform infrared spectrum (FT-IR). The paclitaxel- (PTX-) loaded liposomes based on RGD-PEG-Chol were then prepared by film formation method. The liposomes had a size within 100 nm and significantly enhanced the cytotoxicity of paclitaxel to B16F10 cell as demonstrated by MTT test (IC50= 0.079 μg/mL of RGD-modified PTX-loaded liposomes compared to 9.57 μg/mL of free PTX). Flow cytometry analysis revealed that the cellular uptake of coumarin encapsulated in the RGD-PEG-Chol modified liposome was increased for HUVEC cells. This work provides a reasonable, facile, and economic approach to prepare peptide-modified liposome materials with controllable performances and the obtained linear RGD-modified PTX-loaded liposomes might be attractive as a drug delivery system.


Drug Delivery ◽  
2019 ◽  
Vol 26 (1) ◽  
pp. 812-819 ◽  
Author(s):  
Feng Zhang ◽  
Ke Liu ◽  
Zheng Pan ◽  
Mengdan Cao ◽  
Dengming Zhou ◽  
...  

2018 ◽  
Vol 8 (5) ◽  
pp. 28-34 ◽  
Author(s):  
Jyoti Jyoti ◽  
Sandeep Kumar

Microsponge type of drug delivery is the latest technology which has been introduced in topical skin care, drug products to facilitate the controlled release of the active medicament into the skin in order to reduce systemic exposure and control local cutaneous reactions to active drugs. Microsponge can be loaded into a topical route of drug delivery system for the residue of dosage form of skin and thus controlled release drug delivery system is achieved and in return improving the patient compliance by providing target drug delivery system and prolonging dosage intervals. Microsponge is polymeric delivery systems composed of porous microspheres. They are tiny sponge-like spherical particles and posses large porous surface area. Furthermore, they may enhance stability, reduce side effects, improve patient compliance and modify drug release. Microsponges are the polymer-based microspheres system that has the capacity to entrap a wide variety of substances, and can then be incorporated into a different formulation. Keywords: Microsponge Delivery System, Quasi- emulsion solvent diffusion.


Planta Medica ◽  
2015 ◽  
Vol 81 (16) ◽  
Author(s):  
AR Bilia ◽  
G Capecchi ◽  
MC Salvatici ◽  
B Isacchi ◽  
MC Bergonzi

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