COVID-19 is a reminder that human, nonhuman, and environmental health are linked, and so efforts to improve human, nonhuman, and environmental health should be linked as well. But current efforts to link these issues fall short by not doing enough for humans, not doing enough for nonhumans, and focusing narrowly on health instead of expansively on health, welfare, and rights. This paper surveys the case for respecting and promoting human and nonhuman welfare, health, and rights simultaneously. It then surveys the impacts of COVID-19 on human and nonhuman populations and proposes steps that humans can take to respect and promote human and nonhuman health, welfare, and rights ethically and effectively in this context.
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Cell Rep
January 2025
Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA. Electronic address:
Virus neutralization profiles against primary infection sera and corresponding antigenic cartography are integral part of the COVID-19 and influenza vaccine strain selection processes. Human single variant exposure sera have previously defined the antigenic relationships among SARS-CoV-2 variants but are now largely unavailable due to widespread population immunity. Therefore, antigenic characterization of future SARS-CoV-2 variants will require an animal model, analogous to using ferrets for influenza virus.
View Article and Find Full Text PDFInt J Toxicol
January 2025
Chemical and Preclinical Safety Department, Global Chemical and Preclinical Safety, Merck KGaA, Darmstadt, Germany.
The therapeutic window of antibody drug-conjugates (ADC) remains challenging due to safety issues such as interstitial lung disease (ILD) observed with specific deruxtecan-based ADCs. To avoid ILD, we designed M9140 by conjugating the maleimide-containing hydrophilic β-glucuronide linker to exatecan and our anti-CEACAM5 (CarcinoEmbryonic Antigen-related Cell Adhesion Molecule 5) specific antibody. Following repeated iv-infusion at 3 to 30 mg/kg of M9140 every 3 weeks, the pathological findings obtained in cynomolgus monkeys were confined to gastrointestinal and hematolymphoid tissues and resembled the toxicity of exatecan.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Salk Institute for Biological Studies, La Jolla, CA, USA.
Background: As humans age, some experience cognitive impairment while others do not. When impairment occurs, it varies in severity across individuals. Translationally relevant models are critical for understanding the neurobiological drivers of this variability, which is essential to uncovering the mechanisms underlying the brain's susceptibility to aging.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
University of Michigan Medical School, Ann Arbor, MI, USA.
Background: The transfer of mitochondrial DNA into the nuclear genomes of eukaryotes (Numts) has been linked to lifespan in non-human species and recently demonstrated to occur in rare instances from one human generation to the next.
Method: Here we investigated numtogenesis dynamics in humans in two ways. First, we quantified Numts in 1,187 post-mortem brain and blood samples from different individuals.
Alzheimers Dement
December 2024
Cleveland Clinic, Cleveland, OH, USA.
Background: Apolipoprotein E (ApoE) is the primary cholesterol and lipid transporting apolipoprotein in the central nervous system (CNS) and is the greatest genetic risk factor for Alzheimer's Disease (AD). There are three main isoforms differing by single amino acid changes: ε3 is "neutral", ε4 is "risk" (Cys112Arg), and ε2 is "resilience" (Arg158Cys). Rare forms (Christchurch, Jacksonville) have also been proposed as resilience alleles, while an ε4-like allele (with Arg61Thr) is present in non-human primates without AD risk.
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