Publications by authors named "S C Kazmierczak"
Patterns of feather mite (Acariformes: Astigmata) prevalence and load in a promiscuous bird during the breeding season.
Int J Parasitol Parasites Wildl
December 2024
Article Synopsis
- The study explores how ectosymbiotic feather mites affect the fitness of Aquatic Warblers, focusing on factors influencing mite infestation related to the bird's mating and brood care habits.
- Findings show that mite prevalence increases significantly during the breeding season, particularly in female Aquatic Warblers, although the overall body condition of the birds does not seem adversely affected by mite loads.
- The research suggests that the mating system of promiscuous birds, like the Aquatic Warbler, correlates with higher mite infestation rates but doesn't necessarily compromise their health or reproductive success.
COVID-19 disease progression can be accompanied by a "cytokine storm" that leads to secondary sequelae such as acute respiratory distress syndrome. Several inflammatory cytokines have been associated with COVID-19 disease progression, but have high daily intra-individual variability. In contrast, we have shown that the inflammatory biomarker γ' fibrinogen (GPF) has a 6-fold lower coefficient of variability compared to other inflammatory markers such as hs-CRP.
View Article and Find Full Text PDFBackground: The objective of this study was to examine the relationship between cannabis and alcohol use and occurrence of motor vehicle collision (MVC) among patients in the emergency department (ED).
Methods: This was a cross-sectional study of visits to EDs in Denver, CO, Portland, OR, and Sacramento, CA by drivers who were involved in MVCs and presented with injuries (cases) and non-injured drivers (controls) who presented for medical care. We obtained blood samples and measured delta-9-THC and its metabolites.
BACKGROUNDVaccination is typically administered without regard to site of prior vaccination, but this factor may substantially affect downstream immune responses.METHODSWe assessed serological responses to initial COVID-19 vaccination in baseline seronegative adults who received second-dose boosters in the ipsilateral or contralateral arm relative to initial vaccination. We measured serum SARS-CoV-2 spike-specific Ig, receptor-binding domain-specific (RBD-specific) IgG, SARS-CoV-2 nucleocapsid-specific IgG, and neutralizing antibody titers against SARS-CoV-2.
View Article and Find Full Text PDFIntroduction: The objectives of this study were to examine cannabis and alcohol use among injured patients presenting to emergency departments (ED) in cannabis-legal states to capture an expanded profile of cannabis use and evaluate differences in motor-vehicle collision (MVC) characteristics among those using cannabis alone and in combination with alcohol.
Methods: This was a cross-sectional study of ED visits by drivers in MVC who presented to one of three study sites. Event-related and usual drug and alcohol use information were obtained using a detailed interviewer-administered computerized questionnaire.