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Isolation and Structural Identification of New Diol Esters of Okadaic Acid and Dinophysistoxin-1 from the Cultured .
Toxins (Basel)
January 2025
Department of Oceanography, Kunsan National University, 558 Daehak-ro, Gunsan 54150, Republic of Korea.
, a dinoflagellate responsible for producing diarrhetic shellfish poisoning (DSP) toxins, poses significant threats to marine ecosystems, aquaculture industries, and human health. DSP toxins, including okadaic acid (OA), dinophysis toxin (DTX), and their diverse derivatives, continue to be identified and characterized. In this study, we report the isolation of four new diol esters of OA/DTX-1 from large-scale cultures of .
View Article and Find Full Text PDFNext-Generation Potentiometric Sensors: A Review of Flexible and Wearable Technologies.
Biosensors (Basel)
January 2025
Department of Chemistry, University of Minnesota, 207 Pleasant St. SE, Minneapolis, MN 55455, USA.
In recent years, the field of wearable sensors has undergone significant evolution, emerging as a pivotal topic of research due to the capacity of such sensors to gather physiological data during various human activities. Transitioning from basic fitness trackers, these sensors are continuously being improved, with the ultimate objective to make compact, sophisticated, highly integrated, and adaptable multi-functional devices that seamlessly connect to clothing or the body, and continuously monitor bodily signals without impeding the wearer's comfort or well-being. Potentiometric sensors, leveraging a range of different solid contact materials, have emerged as a preferred choice for wearable chemical or biological sensors.
View Article and Find Full Text PDFIdentification of a Novel Cuproptosis Inducer That Induces ER Stress and Oxidative Stress to Trigger Immunogenic Cell Death in Tumors.
Free Radic Biol Med
January 2025
Institute of Systems Biomedicine, School of Basic Medical Sciences, Department of Pathology, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing 100191, China. Electronic address:
Cuproptosis, a copper-dependent form of regulated cell death, has been implicated in the progression and treatment of various tumors. The copper ionophores, such as Disulfiram (DSF), an FDA-approved drug previously used to treat alcohol dependence, have been found to induce cuproptosis. However, the limited solubility and effectiveness of the combination of DSF and copper ion restrict its widespread application.
View Article and Find Full Text PDFComparison of clinical artificial oocyte activation protocols on mouse egg activation and embryo development.
Reproduction
January 2025
D Cohen, Fundación IBYME. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)., Instituto de Biología y Medicina Experimental, Buenos Aires, Argentina.
Artificial oocyte activation (AOA) with Ca2+ ionophores is an experimental procedure that benefits patients who fail to obtain fertilized eggs. However, the impact of non-physiological Ca2+ increases on cellular events involved in egg-embryo transition and early development remains poorly understood. Using the mouse model, this study compares common Ca2+ ionophore protocols applied in clinical practice - one or two exposures to A23187 or a single exposure to ionomycin - focusing on embryonic development and cellular events associated with egg activation.
View Article and Find Full Text PDFRole of lipid binding protein, Niemann pick type C-2, in enhancing shrimp sperm physiological function.
Heliyon
January 2025
Department of Anatomy, Faculty of Science, Mahidol University, Bangkok, Thailand.
Sperm activation occurring in both male and female reproductive tract involves a highly complex series of biomolecular dynamics, particularly on membrane lipids and proteins. In mammals, the universal anticipation in cholesterol (CHO) sequestration plays a role in mammalian sperm maturation/capacitation, subsequently enhancing sperm fertilizing ability. In shrimp, we have previously shown that the level of cholesterol (CHO) is significantly reduced in vas deferens sperm when compared with sperm in the testes, presumably due to the sequestering action of the lipid-binding protein, one of which is Niemann-Pick Type C-2 (NPC2).
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