Late spontaneous posterior capsule rupture with single-piece hydrophobic acrylic intraocular lens dislocation.

In this study, we described and discussed the late onset spontaneous posterior capsule rupture with intraocular lens (IOL) dislocation years after uncomplicated cataract surgery and implantation of hydrophobic acrylic IOLs. Eight patients presented with spontaneous posterior capsule rupture and IOL dislocation 5-20 years after uncomplicated phacoemulsification and IOL (AcrySof, Alcon, US) implantation. None of the patients had undergone posterior capsulotomy in the past.

Fine Particulate Matter (PM) Sources and Its Individual Contribution Estimation Using a Positive Matrix Factorization Model.

The effective management and regulation of fine particulate matter (PM) is essential in the Republic of Korea, where PM concentrations are very high. To do this, however, it is necessary to identify sources of PM pollution and determine the contribution of each source using an acceptance model that includes variability in the chemical composition and physicochemical properties of PM, which change according to its spatiotemporal characteristics. In this study, PM was measured using PMS-104 instruments at two monitoring stations in Bucheon City, Gyeonggi Province, from 22 April to 3 July 2020; the PM chemical composition was also analyzed.

Properties and anti-inflammatory effects of enzymatic extracts decomposed using crude enzyme from PKA1008.

This study was conducted to investigate the general properties of an enzymatic extract of (SM) produced using a crude enzyme from PKA 1008 and their anti-inflammatory activities. The SM was mixed with crude enzymes from PKA 1008 (1:1 (v/v)) and incubated at 30 °C for 0, 3, 6, 12, 24, 48, and 60 h. PKA 1008 crude enzyme showed the highest SM enzymatic extracts degradation ability when reacted with SM for 48 h.

Advances in ophthalmic drug delivery technology for postoperative management after cataract surgery.

Introduction: Cataract surgery is becoming more common due to an aging world population. Intraocular lenses and surgical technique have developed remarkably recently, but the development of postoperative medication to prevent postsurgery complications has been relatively delayed. We still largely depend on eye drops for the management of post-cataract-surgery patients.

Effects of Gamma Irradiation on Inhibition of Urease Activity and Fishy Smell in Mackerel () during Refrigerated Storage.

In this study, gamma-irradiated mackerel () meat was stored in a refrigerator for 20 days to examine the physicochemical changes related to fishy smell. The effect of gamma irradiation on the inhibition of the activity of crude urease extracted from was also evaluated. Increased levels of trimethylamine (TMA) and volatile basic nitrogen (VBN) content, which are the main components causing fishy smell, were significantly reduced by day 20 of storage after gamma irradiation, indicating that freshness was maintained during storage.

Effect of High Hydrostatic Pressure Treatment on Urease Activity and Inhibition of Fishy Smell in Mackerel () during Storage.

In this study, the physicochemical changes related to fishy smell were determined by storing high hydrostatic pressure (HHP)-treated mackerel () meat in a refrigerator for 20 days. The inhibition of crude urease activity from using HHP treatment was also investigated. The mackerel meat storage experiment demonstrated that production of trimethylamine (TMA) and volatile basic nitrogen (VBN), the main components of fishy smell, was significantly reduced on the 20th day of storage after the HHP treatment compared to the untreated mackerels.

Study on Characteristics of Particulate Matter Resuspension in School Classroom through Experiments Using a Simulation Chamber: Influence of Humidity.

Resuspension of particulate matter (PM) in classrooms, which increases the risk of negative impact on student health from exposure to PM, is influenced by humidity level in the indoor environment. The goal of this study is to investigate the properties of PM resuspension in accordance with relative humidity through classroom test chamber experiments. In actual classrooms, it is challenging to control factors influencing resuspension.

Transfer learning driven sequential forecasting and ventilation control of PM associated health risk levels in underground public facilities.

Particulate matter with aerodynamic diameter less than 2.5 µm (PM) has become a major public concern in closed indoor environments, such as subway stations. Forecasting platform PM concentrations is significant in developing early warning systems, and regulating ventilation systems to ensure commuter health.

Osteoarthritis Affects Health-Related Quality of Life in Korean Adults with Chronic Diseases: The Korea National Health and Nutritional Examination Surveys 2009-2013.

Background: Osteoarthritis (OA) is a chronic disease that commonly afflicts the elderly. This disease reduces the health-related quality of life (HRQoL) and causes a significant social burden. Whether the effect of coexisting chronic conditions on HRQoL varies according to the presence of OA remains unclear.

Efficacy of Carboxymethylcellulose and Hyaluronate in Dry Eye Disease: A Systematic Review and Meta-Analysis.

Background: The efficacy of two artificial tears, carboxymethylcellulose (CMC) and hyaluronate (HA), was compared in the treatment of patients with dry eye disease.

Methods: We conducted a systematic review and meta-analysis on randomized controlled trials in the PubMed, Embase, Cochrane Library, and ClinicalTrials.gov databases.