Topic
Critical care research, explained
14 open-access critical care studies, each with a flashcard deck and a quiz.
- Two blood gene signatures track sepsis outcomes
In UK ICU adults with pneumonia sepsis, leukocyte transcriptomes split into SRS1 (immunosuppressed, ~41%) and SRS2; SRS1 had roughly 2–3× higher 14-day mortality, and a 7-gene set classified the groups.
- Are hospital MERS outbreaks just like SARS?
Comparing hospital clusters, MERS and SARS both ignite via early super-spreaders then drop below R=1 within 3–5 generations; a >100-case outbreak is about twice as likely for SARS (2% vs 1%), while MERS transmission is more heterogeneous.
- Are there hidden biological types of septic shock in children?
Clustering children with septic shock by the genes active in their blood revealed three subgroups, and the one with switched-off immune and zinc-related genes was the sickest and most likely to die.
- Can ferritin flag deadly macrophage-like sepsis?
In 5,121 Greek patients with infection and SIRS, macrophage activation-like syndrome (MALS) occurred in ~4% and independently predicted 10-day death; ferritin above 4420 ng/ml marked ~66% 28-day mortality.
- Is severe COVID linked to leaky-gut plasma markers?
Severe COVID-19 showed higher tight-junction permeability and bacterial/fungal translocation markers that tracked systemic inflammation; zonulin was higher in patients who later died.
- Genetic IL-6 receptor blockade links to lower sepsis risk
Mendelian randomisation treating IL6R variants as a natural experiment for receptor blockade found lower odds of sepsis (OR 0.80) and critical-care sepsis (OR 0.48) in UK Biobank, with a similar-sized protective association for severe COVID-19.
- Does malaria-related kidney injury leave lasting brain and kidney harm?
In 479 Ugandan children with severe malaria, KDIGO AKI (35%) tracked higher death (aHR 2.30), more cognitive impairment at 2 years (aOR 3.03), and more CKD (7.6% vs 2.8%).
- Does ICU sedative Dex blunt kidney ferroptosis after I/R?
In mice and kidney cells, dexmedetomidine lessened ferroptosis-linked renal I/R injury by restraining ACSL4 through α2-AR.
- Which cell-death programs drive septic acute lung injury?
This review maps how unbalanced autophagy, ferroptosis, and pyroptosis worsen sepsis-induced ALI and which drugs might retune them.
- Three blood metabolites flag sepsis-associated kidney injury early
Mouse kidney multi-omics plus a 56-patient serum cohort produced an IC3 model (inosine, creatine, 3-hydroxybutyric acid) that early-identified sepsis-associated AKI with AUC 0.90.
- How does cisplatin scramble rat hippocampal memory circuits?
Cisplatin cut survival, impaired recognition memory, and ramped hippocampal inflammation, oxidative stress, and glutamate-receptor mRNA.
- Which immune genes drop in sepsis single-cell maps?
In GSE28750 (10 sepsis vs 20 controls), 61 DEGs and single-cell t-SNE (T/NK/monocyte/megakaryocyte/DC/B cells) pointed to seven T-cell hub genes; six of them were lower in sepsis, with animal assays as follow-up.
- Can an epilepsy drug stop cisplatin kidney ferroptosis?
Valproic acid, like ferrostatin-1, improved cisplatin AKI in mice by reversing GPX4 loss and ACSL4-linked lipid peroxidation; GPX4 siRNA wiped out VPA’s protection in tubular cells.
- Can a flavonoid rescue acetaminophen livers via GPX4?
In C57BL/6 mice, Thonningianin A (20–40 mg/kg) before APAP 300 mg/kg cut ALT/AST and ER-stress markers, but AAV8 liver GPX4 knockdown (53.6% protein loss) abolished protection.