Intravitreal Injection Drug Delivery for Retina and Posterior Segment Disease: Challenges and the Future Ahead

Author(s):  
Tejal Mehta ◽  
Munira Momin
INDIAN DRUGS ◽  
2019 ◽  
Vol 56 (09) ◽  
pp. 7-21
Author(s):  
D. A Shelke ◽  
S. Shirolkar ◽  

The drug delivery to posterior segment especially to retina of eye is difficult due to various barriers. The diseases affecting the retina of eye are increasing and hence there is need to develop approaches for drug delivery to retina. This review describes the anatomy of retina, barriers associated with it, and diseases of retina. The drug delivery to retina by systemic, topical, intravitreal injection, intravitreal implant along with advance nanotechnology based and transporter mediated drug delivery is discussed here. The recent technologies in retinal drug delivery are also discussed to give comprehensive recent information about retinal drug delivery


2021 ◽  
Vol 11 (16) ◽  
pp. 7187
Author(s):  
Peter V. Hauser ◽  
Hsiao-Min Chang ◽  
Norimoto Yanagawa ◽  
Morgan Hamon

The kidneys are vital organs performing several essential functions. Their primary function is the filtration of blood and the removal of metabolic waste products as well as fluid homeostasis. Renal filtration is the main pathway for drug removal, highlighting the importance of this organ to the growing field of nanomedicine. The kidneys (i) have a key role in the transport and clearance of nanoparticles (NPs), (ii) are exposed to potential NPs’ toxicity, and (iii) are the targets of diseases that nanomedicine can study, detect, and treat. In this review, we aim to summarize the latest research on kidney-nanoparticle interaction. We first give a brief overview of the kidney’s anatomy and renal filtration, describe how nanoparticle characteristics influence their renal clearance, and the approaches taken to image and treat the kidney, including drug delivery and tissue engineering. Finally, we discuss the future and some of the challenges faced by nanomedicine.


Author(s):  
Komal Parmar ◽  
Jayvadan K. Patel ◽  
Deepak Bhatia ◽  
Yashwant V. Pathak

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