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Application of the Sponge Model Implants in the Study of Vaccine Memory in Mice Previously Immunized with LBSap.
Vaccines (Basel)
November 2024
Laboratory of Biology of Cellular Interactions, Department of Morphology, Federal University of Minas Gerais, Belo Horizonte 31270-901, MG, Brazil.
Background/objectives: Considering the large number of candidates in vaccine-testing studies against different pathogens and the amount of time spent in the preclinical and clinical trials, there is a pressing need to develop an improved in vivo system to quickly screen vaccine candidates. The model of a polyester-polyurethane sponge implant provides a rapid analysis of the specific stimulus-response, allowing the study of a compartmentalized microenvironment. The sponge implant's defined measurements were standardized as a compartment to assess the immune response triggered by the vaccinal antigen.
View Article and Find Full Text PDFPharmacodynamic Model of the Hemodynamic Effects of Propofol and Remifentanil and Their Interaction with Noxious Stimulation.
Pharmaceutics
December 2024
Department of Pharmaceutical Sciences, School of Pharmacy and Nutrition, University of Navarra, 31008 Pamplona, Spain.
: Despite the known impact of propofol and remifentanil on hemodynamics and patient outcomes, there is a lack of comprehensive quantitative analysis, particularly in surgical settings, considering the influence of noxious stimuli. The aim of this study was to develop a quantitative semi-mechanistic population model that characterized the time course changes in mean arterial pressure (MAP) and heart rate (HR) due to the effects of propofol, remifentanil, and different types of noxious stimulation related to the clinical routine. : Data from a prospective study were used; the study analyzed the effects of propofol and remifentanil general anesthesia on female patients in physical status of I-II according to the American Society of Anesthesiologists (ASA I-II) undergoing gynecology surgery.
View Article and Find Full Text PDFMorphological and Photosynthetic Pigment Screening of Four Microgreens Species Exposed to Heavy Ions.
Plants (Basel)
December 2024
Department of Agricultural Sciences, University of Naples Federico II, 80055 Naples, Italy.
Numerous challenges are posed by the extra-terrestrial environment for space farming and various technological growth systems are being developed to allow for microgreens' cultivation in space. Microgreens, with their unique nutrient profiles, may well integrate the diet of crew members, being a natural substitute for chemical food supplements. However, the space radiation environment may alter plant properties, and there is still a knowledge gap concerning the effects of various types of radiation on plants and specifically on the application of efficient and rapid methods for selecting new species for space farming, based on their radio-resistance.
View Article and Find Full Text PDFThe Role of Breast Milk Cell-Free DNA in the Regulation of the Neonatal Immune Response.
Nutrients
December 2024
Liggins Institute, University of Auckland, Auckland 1023, New Zealand.
The neonatal period is a critical phase for the development of the intestinal immune system, marked by rapid adaptation to the external environment and unique nutritional demands. Breast milk plays a pivotal role in this transition, yet the mechanisms by which it influences neonatal mucosal immunity remain unclear. This review examines the potential mechanisms by which cell-free DNA (cfDNA) in breast milk may impact neonatal immune development, particularly through Toll-like receptor 9 (TLR9) signalling and gut microbiota interactions.
View Article and Find Full Text PDFPhosphorescent Sensor Based on Iridium(III) Complex with Aggregation-Induced Emission Activity for Facile Detection of Volatile Acids.
Molecules
December 2024
Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China.
Phosphorescent sensors are essential for rapid visual sensing of volatile acids, due to their profound impact on ecosystems and human health. However, solid phosphorescent materials for acid-base stimulus response are still rare, and it is important to achieve real-time monitoring of volatile acids. In order to obtain an efficient and rapid response to volatile acid stimulation, N-H and -NH substituents are introduced into an auxiliary ligand to synthesize a new cationic Ir(III) complex ().
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