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Exploring the relationship between periodontal diseases and osteoporosis: Potential role of butyrate.
Biomed Pharmacother
December 2024
College of Dental Medicine, Lincoln Memorial University, LMU Tower, 1705 St. Mary Street, Knoxville, TN 37917, USA. Electronic address:
Osteoporosis, a condition marked by the loss of bone density and mass, affects individuals of all ages. However, it becomes more prevalent and severe with aging, increasing the risk of fractures and other health complications. Recent research has highlighted a link between osteoporosis and periodontitis, a chronic gum disease, as both conditions involve excessive bone loss that can lead to significant oral health problems if untreated.
View Article and Find Full Text PDFVisible Light Photolysis at Single Atom Sites in Semiconductor Perovskite Oxides.
J Am Chem Soc
December 2024
Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States.
Designing catalysts with well-defined active sites with chemical functionality responsive to visible light has significant potential for overcoming scaling relations limiting chemical reactions over heterogeneous catalyst surfaces. Visible light can be leveraged to facilitate the removal of strongly bound species from well-defined single cationic sites (Rh) under mild conditions (323 K) when they are incorporated within a photoactive perovskite oxide (Rh-doped SrTiO). CO, a key intermediate in many chemistries, forms stable geminal dicarbonyl Rh complexes (Rh(CO)), that could act as site blockers or poisons during a catalytic cycle.
View Article and Find Full Text PDFA Prebiotic Route to Lactate from Acetaldehyde, Cyanide and Carbon Dioxide.
Chemistry
December 2024
University of Copenhagen, Chemistry, Universitetsparken 5, Kemisk Institut, 2100, Copenhagen, DENMARK.
The atmospheric concentration of carbon dioxide (CO2) has fluctuated throughout Earth's history. However, the role of CO2 in prebiotic chemistry has predominantly been limitedly postulated as a C1 precursor, which can be reduced to carbon monoxide or methane mimicking the Wood-Ljungdahl pathway. Herein we present neglected roles of CO2 as an active promoter in accessing biologically important C3-builidng blocks such as lactate, via redox-economic reaction cycles from cyanide (C1) and acetaldehyde (C2).
View Article and Find Full Text PDFNitrate-Photolysis Shortens the Lifetimes of Brown Carbon Tracers from Biomass Burning.
Environ Sci Technol
December 2024
State Ecology and Environment Scientific Observation and Research Station for the Yangtze River Delta at Dianshan Lake, Shanghai Environmental Monitoring Center, Shanghai 200030, China.
Biomass burning is an important source of brown carbon (BrC) aerosols, which influence climate by affecting the Earth's radiative balance. However, the transformation pathways of BrC chromophores, especially in the presence of photochemically active species, such as nitrate, are not well understood. In this study, the nitrate-mediated aqueous-phase photooxidation of three typical BrC chromophores from biomass burning was investigated, including 4-nitrocatechol, 3-nitrosalicylic acid, and 3,4-dinitrophenol.
View Article and Find Full Text PDFN-acetylation of α-synuclein enhances synaptic vesicle clustering mediated by α-synuclein and lysophosphatidylcholine.
Elife
December 2024
Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China.
Previously, we reported that α-synuclein (α-syn) clusters synaptic vesicles (SV) Diao et al., 2013, and neutral phospholipid lysophosphatidylcholine (LPC) can mediate this clustering Lai et al., 2023.
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