A novel enzymatic photometric assay for ethanol determination using alcohol oxidase and peroxidase is described. The sensitivity of the method allows detecting ethanol in biological fluids (saliva and blood serum). Secondary alcohols and other organic compounds do not interfere with the assay. General-purpose spectrophotometers and photoelectric colorimeters can be used in the measurements. Methanol and propanol can also be determined by this technique.
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Invest Ophthalmol Vis Sci
January 2025
GROW Research Laboratory, Narayana Netralaya Foundation, Bangalore, India.
Purpose: Keratoconus (KC) is characterized by irregular astigmatism along with corneal stromal weakness and is associated with altered immune status. Tissue resident microbiomes are known to influence the immune status in other organs, but such a nexus has not been described in ocular conditions. Therefore, we examined the ocular surface microbiome of patients with KC and correlated it to the immune cell and tear molecular factor profiles.
View Article and Find Full Text PDFBiopolymers
March 2025
Department of Chemistry, School of Chemical and Physical Sciences, Lovely Professional University, Phagwara, India.
In this paper, we offer a unique green synthetic approach for producing iron sulfide quantum dots (FeS QD)-chitosan composites using gel chemistry. The technique uses the environmental features of chitosan, a biocompatible and biodegradable polysaccharide, and the excellent electrical properties of FeS QDs. By sustainable chemistry principles, the synthesis process is carried out under gentle settings, using aqueous solutions and avoiding hazardous solvents and strong chemicals.
View Article and Find Full Text PDFLasers Med Sci
January 2025
School of Medicine and Dentistry, Griffith University, Gold Coast, QLD, Australia.
This in-vitro study assessed the influence of the shade of human teeth on the transmission of near-infrared light. A total of 40 teeth were used. After cleaning the root surface and removing cementum, the teeth were sectioned into slices 3 mm thick, with each comprising a portion of the crown (enamel-dentine (ED)) and of the root (dentine only).
View Article and Find Full Text PDFActa Med Indones
October 2024
Hematology Division, Department of Internal Medicine, Faculty of Medicine, Padjadjaran University - Hasan Sadikin Hospital, Bandung, Indonesia.
Background: Monocytes are evolutionarily preserved innate immune cells that play essential roles in immune response regulation. Three activated monocyte subsets-classical (CD14++CD16-), intermediate (CD14++CD16+), and nonclassical (CD14+CD16++)-are associated with systemic lupus erythematosus (SLE) progression. This study aims to determine the association of monocyte subsets with SLE disease activity.
View Article and Find Full Text PDFActa Med Indones
October 2024
1. Doctoral Program in Medical Science, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia. 2. Neuro-ophthalmology Division, Department of Ophthalmology, Faculty of Medicine Universitas Indonesia - Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia..
Background: Studies regarding hypercoagulation in Non-Arteritic Anterior Ischemic Optic Neuropathy (NAION) patients have produced conflicting results. With a presumption that the early coagulation phase may affect the occurrence of NAION, this study aims to investigate the early coagulation markers, E-selectin and P-selectin, to determine whether these biomolecular changes play a significant role in NAION, thus potentially leading to a better clinical approach.
Methods: A cross-sectional study involving two groups of NAION subjects, a hypercoagulation group and a non-hypercoagulation group, was conducted in the Neuro-Ophthalmology Division, Department of Ophthalmology, FKUI-RSCM Kirana from October 2020 to April 2022.
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