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Accuracy of two-compartment modelling of gas exchange with ventilation-perfusion mismatch in inhalational anesthesia.
Anesthesiology
January 2025
Department of Critical Care, Melbourne Medicine School, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Victoria, Australia.
Background: Multi-compartment computer models of heterogeneity in alveolar ventilation-perfusion ratios (VA/Q scatter) across the lung explain the significant alveolar-arterial (A-a) partial pressure gradients and associated alveolar dead-space fractions (VDA/VA) seen in anesthetized patients for both carbon dioxide and for anesthetic gases of different blood solubilities. However, the accuracy of a simpler two-compartment model of VA/Q scatter to do this has not been tested or compared to calculations from the traditional Riley model with "ideal", unventilated (shunt) and unperfused (deadspace) compartments.
Methods: Measurements of gas partial pressures in inspired and expired gas and arterial and mixed venous blood from 29 patients undergoing inhalational general anesthesia for cardiac surgery was used to compare the accuracy of two simple models of VA/Q scatter and lung gas exchange in predicting measured alveolar and arterial partial pressure differences, and associated alveolar dead-space calculations for the modern anesthetic gases isoflurane, sevoflurane and desflurane.
A prospective observational multicenter cohort study of maternal serum sFlt-1 and PlGF concentration in prediction of adverse neonatal outcomes in small for gestational age newborns delivered ≥34 weeks of gestation.
J Matern Fetal Neonatal Med
December 2025
Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, Warsaw, Poland.
Introduction: Small-for-gestational age (SGA) newborns are at increased risk of adverse neonatal outcomes and the risk is related to the etiology of growth restriction: highest in placental insufficiency, lowest in constitutional SGA. The aim of this study was to investigate if placental growth factor (PlGF), soluble fms-like tyrosine kinase-1(sFlt-1) or sFlt-1/PlGF ratio are efficient in prediction of adverse neonatal outcomes in SGA newborns delivered ≥34 weeks of gestation.
Methods: A prospective observational multicenter cohort study was performed.
Antimicrobial biodegradable packaging films from phosphorylated starch: A sustainable solution for plastic waste.
Carbohydr Res
January 2025
Institute of Integrated & Honors Studies, Kurukshetra University, Kurukshetra, 136119, Haryana, India. Electronic address:
This study focused on developing biodegradable packaging films based on starch as an alternative to non-biodegradable such as petroleum-derived synthetic polymers. To improve its physicochemical properties, potato starch was chemically modified through phosphorylation. Starch phosphorylation was carried out using cyclic 1,3-propanediol phosphoryl chloride (CPPC), produced phosphorylated starch (PS), and analyzed using Fourier transform infrared (FT-IR), X-ray diffraction (XRD), Nuclear magnetic resonance (NMR), and Thermogravimetric analysis (TGA).
View Article and Find Full Text PDFChicken surfactant protein A1 activates macrophages phagocytosis and attenuates LPS-induced inflammatory response through the TLR4-mediated NF-кB pathway.
Poult Sci
January 2025
College of Veterinary Medicine, Anhui Agricultural University, 130 West Changjiang Road, Hefei, Anhui 230036, China. Electronic address:
Chicken surfactant protein A1 (cSP-A1) is a soluble C-type lectin found primarily in chicken lungs. Its function and other potential bioactivities are unclear. This study aimed to express, purify, and identify recombinant cSP-A1 (RcSP-A1), investigate its effects on chicken macrophage HD11 cells, and evaluate its ability to regulate the LPS-induced inflammatory response.
View Article and Find Full Text PDFIn Vitro and In Vivo Anticancer Activities of Water-Soluble Ru(II)(η6--cymene) Complexes via Activating Apoptosis Central Regulators and Possibilities of New Antitumor Strategies in Triple Negative Breast Cancers.
J Med Chem
January 2025
Inner Mongolia Key Laboratory for Molecular Regulation of the Cell, Inner Mongolia University, Hohhot 010021, People's Republic of China.
In this study, we synthesized 12 monofunctional tridentate ONS-donor salicylaldimine ligand ()-based Ru(II) complexes with general formula [(Ru()(-cymene)]·Cl (-), characterized by H NMR, C NMR, UV, FT-IR spectroscopy, HR-ESI mass spectrometry, and single-crystal X-ray analysis showing ligand's orientation around the Ru(II) center. All 12 of these 12 complexes were tested for their anticancer activities in multiple cancer cells. The superior antitumor efficacy of , , and was demonstrated by reduced mitochondrial membrane potential, impaired proliferative capacity, and disrupted redox homeostasis, along with enhanced apoptosis through caspase-3 activation and downregulation of Bcl-2 expression.
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