Purpose: To determine the level of hepatocyte growth factor (HGF) in the aqueous humor of patients with retinitis pigmentosa (RP).
Methods: This was a prospective, comparative control study. Aqueous humor samples were collected from the eyes of 15 RP patients. The level of HGF was determined with a commercially available enzyme-linked immunoabsorbent assay kit. The control group was composed of aqueous samples from 15 patients about to undergo cataract surgery with no other ocular or systemic diseases.
Results: The concentration of HGF was markedly higher in the aqueous humor of the patients with RP than in that of the control subjects (Mann-Whitney U test, P < 0.001). The level of HGF was 958.75 +/- 271.52 (mean +/- SD) pg/mL in the eyes of the RP patients and 403.52 +/- 116.27 pg/mL in eyes of the control group.
Conclusions: The concentration of HGF in aqueous humor is higher among patients with RP than in non-RP subjects. This finding provides new evidence that should be taken in account when considering HGF as a neuroprotective treatment for patients with RP.
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http://dx.doi.org/10.1167/iovs.09-4390 | DOI Listing |
Sci Rep
January 2025
Department of Ophthalmology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, 3010, Bern, Switzerland.
To describe the management and clinical course of 12 cases of pseudophakic aqueous misdirection syndrome (AMS). Twelve eyes of 12 Patients diagnosed with pseudophakic AMS between 2021 and 2022 were included. Best-corrected visual acuity, refraction, intraocular pressure (IOP), anti-glaucomatous medication, spectral domain ocular coherence tomography (SD-OCT) and postoperative complications were evaluated.
View Article and Find Full Text PDFGraefes Arch Clin Exp Ophthalmol
January 2025
Hospital Universitario de La Princesa, C/Diego de Leon, 62, 28006, Madrid, Spain.
Purpose: To compare iridian Swept-Source Anterior Segment OCT (SS-AS-OCT) and microbiological features in Aqueous Humor (AH) in patients with Fuchs Uveitis Syndrome (FUS) and Posner-Schlossman Syndrome (PSS).
Methods: Comparative, retrospective-prospective single center study examining 131 eyes from 66 patients, including 33 eyes with PSS, 37 eyes with FUS, and 61 healthy eyes. AH samples were collected from affected eyes in all patients.
Invest Ophthalmol Vis Sci
January 2025
Singapore Eye Research Institute, Singapore.
Purpose: To investigate the aqueous proteomics and metabolomics in low-energy and high-energy femtosecond laser-assisted cataract surgery (FLACS).
Methods: In this prospective observational study, 72 patients were randomized to 3 groups: low-energy FLACS, high-energy FLACS, and conventional phacoemulsification (controls). Aqueous was collected after femtosecond laser treatment or at the beginning of surgery (controls).
Invest Ophthalmol Vis Sci
January 2025
Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia, United States.
Purpose: Aqueous humor inflow rate, a key parameter influencing aqueous humor dynamics, is typically measured by fluorophotometry. Analyzing fluorophotometric data depends, inter alia, on the volume of aqueous humor in the anterior chamber but not the posterior chamber. Previous fluorophotometric studies of the aqueous inflow rate in mice have assumed the ratio of anterior:posterior volumes in mice to be similar to those in humans.
View Article and Find Full Text PDFPharmaceutics
November 2024
Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, No. 280 University Town Outer Ring East Road, Guangzhou 510006, China.
Background: Internal ocular diseases, such as macular edema, uveitis, and diabetic macular edema require precise delivery of therapeutic agents to specific regions within the eye. However, the eye's complex anatomical structure and physiological barriers present significant challenges to drug penetration and distribution. Traditional eye drops suffer from low bioavailability primarily due to rapid clearance mechanisms.
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