13 research outputs found
Autism spectrum disorder: a neuro-immunometabolic hypothesis of the developmental origins
Fetal neuroinflammation and prenatal stress (PS) may contribute to lifelong
neurological disabilities. Astrocytes and microglia play a pivotal role, but
the mechanisms are poorly understood. Here, we test the hypothesis that via
gene-environment interactions, fetal neuroinflammation and PS may reprogram
glial immunometabolic phenotypes which impact neurodevelopment and
neurobehavior. This glial-neuronal interplay increases the risk for clinical
manifestation of autism spectrum disorder (ASD) in at-risk children. Drawing on
genomic data from the recently published series of ovine and rodent glial
transcriptome analyses with fetuses exposed to neuroinflammation or PS, we
conducted a secondary analysis against the Simons Foundation Autism Research
Initiative (SFARI) Gene database. We confirmed 21 gene hits. Using unsupervised
statistical network analysis, we then identified six clusters of probable
protein-protein interactions mapping onto the immunometabolic and stress
response networks and epigenetic memory. These findings support our hypothesis.
We discuss the implications for ASD etiology, early detection, and novel
therapeutic approaches.Comment: Supplemental Table and Data:
https://github.com/martinfrasch/ASD_origins_hypothesis. arXiv admin note:
text overlap with arXiv:1812.06617 | This is a different study with related
research context (relevance to ASD
Measurement induced criticality in quasiperiodic modulated random hybrid circuits
We study one-dimensional hybrid quantum circuits perturbed by quenched
quasiperiodic (QP) modulations across the measurement-induced phase transition
(MIPT). Considering non-Pisot QP structures, characterized by unbounded
fluctuations, allows us to tune the wandering exponent to exceed the
Luck bound for the stability of the MIPT where . Via large-scale numerical simulations of random Clifford circuits
interleaved with local projective measurements, we find that sufficiently large
QP structural fluctuations destabilize the MIPT and induce a flow to a broad
family of critical dynamical phase transitions of the infinite QP type that is
governed by the wandering exponent, . We numerically determine the
associated critical properties, including the correlation length exponent
consistent with saturating the Luck bound, and a universal activated dynamical
scaling with activation exponent , finding excellent
agreement with the conclusions of real space renormalization group
calculations.Comment: 14 pages, 13 figure
Interactive effects of memory structuring and gender in preventing posttraumatic stress symptoms
The effect of delaying transperineal fusion biopsy of the prostate for patients with suspicious MRI findings—Implications for the COVID-19 era
Neuronal response impedance mechanism implementing cooperative networks with low firing rates and μs precision
Anti-TNFα Treatment Impairs Long-Term Immune Responses to COVID-19 mRNA Vaccine in Patients with Inflammatory Bowel Diseases
Patients with inflammatory bowel disease (IBD) treated with anti-tumor-necrosis factor-alpha (TNFα) exhibited lower serologic responses one-month following the second dose of the COVID-19 BNT162b2 vaccine compared to those not treated with anti-TNFα (non-anti-TNFα) or to healthy controls (HCs). We comprehensively analyzed long-term humoral responses, including anti-spike (S) antibodies, serum inhibition, neutralization, cross-reactivity and circulating B cell six months post BNT162b2, in patients with IBD stratified by therapy compared to HCs. Subjects enrolled in a prospective, controlled, multi-center Israeli study received two BNT162b2 doses. Anti-S levels, functional activity, specific B cells, antigen cross-reactivity, anti-nucleocapsid levels, adverse events and IBD disease score were detected longitudinally. In total, 240 subjects, 151 with IBD (94 not treated with anti-TNFα and 57 treated with anti-TNFα) and 89 HCs participated. Six months after vaccination, patients with IBD treated with anti-TNFα had significantly impaired BNT162b2 responses, specifically, more seronegativity, decreased specific circulating B cells and cross-reactivity compared to patients untreated with anti-TNFα. Importantly, all seronegative subjects were patients with IBD; of those, >90% were treated with anti-TNFα. Finally, IBD activity was unaffected by BNT162b2. Altogether these data support the earlier booster dose administration in these patients