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Lalu L, Tambe V, Pradhan D, Nayak K, Bagchi S, Maheshwari R, Kalia K, Tekade RK. Novel nanosystems for the treatment of ocular inflammation: Current paradigms and future research directions. J Control Release 2017; 268:19-39. [PMID: 28756272 DOI: 10.1016/j.jconrel.2017.07.035] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 07/24/2017] [Accepted: 07/25/2017] [Indexed: 12/23/2022]
Abstract
Ocular discomforts involve anterior/posterior-segment diseases, symptomatic distress and associated inflammations and severe retinal disorders. Conventionally, the formulations such as eye drops, eye solutions, eye ointments and lotions, etc. were used as modalities to attain relief from such ocular discomforts. However, eye allows limited access to these traditional formulations due to its unique anatomical structure and dynamic ocular environment and therefore calls for improvement in disease intervention. To address these challenges, development of nanotechnology based nanomedicines and novel nanosystems (liposomes, cubosomes, polymeric and lipidic nanoparticles, nanoemulsions, spanlastics and nano micelles) are currently in progress (some of them are already marketed such as Eye-logic liposomal eye spray@Naturalife, Ireland). Today, it is one of the central concept in designing more accessible formulations for deeper segments of the eyes. These nanosystems has largely enabled the availability of medicaments at required site in a required concentration without inversely affecting the eye tissues; and therefore, attaining the excessive considerations from the formulation scientists and pharmacologists worldwide. The entrapment of drugs, genes, and proteins inside these novel systems is the basis that works at the bio-molecular level bestows greater potential to eradicate disease causatives. In this review, we highlighted the recent attempts of nanotechnology-based systems for treating and managing various ocular ailments. The progress described herein may pave the way to new, highly effective and vital ocular nanosystems.
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Affiliation(s)
- Lida Lalu
- National Institute of Pharmaceutical Education and Research (NIPER) Ahmedabad, An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Palaj, Opp. Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Vishakha Tambe
- National Institute of Pharmaceutical Education and Research (NIPER) Ahmedabad, An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Palaj, Opp. Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Deepak Pradhan
- National Institute of Pharmaceutical Education and Research (NIPER) Ahmedabad, An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Palaj, Opp. Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Kritika Nayak
- National Institute of Pharmaceutical Education and Research (NIPER) Ahmedabad, An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Palaj, Opp. Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Suchandra Bagchi
- National Institute of Pharmaceutical Education and Research (NIPER) Ahmedabad, An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Palaj, Opp. Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Rahul Maheshwari
- National Institute of Pharmaceutical Education and Research (NIPER) Ahmedabad, An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Palaj, Opp. Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Kiran Kalia
- National Institute of Pharmaceutical Education and Research (NIPER) Ahmedabad, An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Palaj, Opp. Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Rakesh Kumar Tekade
- National Institute of Pharmaceutical Education and Research (NIPER) Ahmedabad, An Institute of National Importance, Government of India, Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Palaj, Opp. Air Force Station, Gandhinagar 382355, Gujarat, India.
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Ahmed OAA, Fahmy UA, Al-Ghamdi AS, Aljaeid BM, Aldawsari H, Fahmy O, Sarhan HA, Khairul Asri MG. Finasteride-loaded biodegradable nanoparticles: Near-infrared quantification of plasma and prostate levels. J BIOACT COMPAT POL 2017. [DOI: 10.1177/0883911517694397] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Finasteride is an orally active testosterone 5-alpha-reductase inhibitor that is used for the treatment of benign prostatic hyperplasia as a surgical alternative. The aim of this work was to improve finasteride levels in plasma and prostate through the formulation of biodegradable finasteride nanoparticles and to quantify finasteride levels using near-infrared application. Finasteride nanoparticles were prepared by emulsion solvent evaporation method utilizing the biodegradable polymers poly(lactic- co-glycolic acid) and poly-ϵ-caprolactone. The prepared nanoparticles were characterized by particle size, zeta potential, and encapsulation efficiency. The selected finasteride-biodegradable formula was examined in vivo, and both plasma and prostate levels of finasteride were quantified utilizing near-infrared technique. Results revealed that the prepared finasteride nanoparticles size range was from 231 ± 78 to 956 ± 224 nm with finasteride–poly-ϵ-caprolactone nanoparticles showing larger particle sizes compared with finasteride–poly(lactic- co-glycolic acid) nanoparticles. The encapsulation efficiency ranged from 68.89% ± 2.99% to 99.15% ± 4.32%. The selected formula of finasteride nanoparticles showed improved levels of finasteride in both plasma and prostate of the investigated rats. The realization of sustained release of biodegradable finasteride nanoparticles for possible oral or parenteral application could improve the activity of the drug for sustaining release time with lower dosing recurrence that improves patient compliance.
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Affiliation(s)
- Osama AA Ahmed
- Department of Pharmaceutics & Industrial Pharmacy, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Pharmaceutics & Industrial Pharmacy, Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Usama A Fahmy
- Department of Pharmaceutics & Industrial Pharmacy, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ahmed S Al-Ghamdi
- Department of Pharmaceutics & Industrial Pharmacy, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Bader M Aljaeid
- Department of Pharmaceutics & Industrial Pharmacy, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hibah Aldawsari
- Department of Pharmaceutics & Industrial Pharmacy, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Omar Fahmy
- Urology Department, Universiti Putra Malaysia (UPM), Serdang, Malaysia
| | - Hatem A Sarhan
- Department of Pharmaceutics & Industrial Pharmacy, Faculty of Pharmacy, Minia University, Minia, Egypt
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