Immune-sensitization to Among Young Children With and Without Tuberculosis.

Background: Identification of young children with ( )-infection is critical to curb Tuberculosis (TB)-related pediatric morbidity and mortality. The optimal test to identify young children with evidence of -infection remains controversial.

Methods: Using a TB household contact (HHC) study design among 130 Ugandan children less than 5 years with established -exposure, we compared the usefulness of the tuberculin skin test (TST) and QuantiFERON Gold Plus (QFT-Plus) to identify children with evidence for -sensitization.

C2-Selective Palladium-Catalyzed C-S Cross-Coupling of 2,4-Dihalopyrimidines.

Under most conditions, 2,4-dihalopyrimidines undergo substitution reactions at C4. Here we report that Pd(II) precatalysts supported by bulky -heterocyclic carbene ligands uniquely effect C2-selective cross-coupling of 2,4-dichloropyrimidine with thiols. The regioselectivity of this reaction stands in stark contrast to ∼1500 previously reported Pd-catalyzed cross-couplings that favor C4 in the absence of other substituents on the pyrimidine ring.

Tolane-Based Phosphino- and Arsino-Ruthenium Complexes in Three Different Oxidation States: Ru(I), Ru(II) and Ru(III).

Targeting Ru(III) and Ru(I) η-alkyne species, 2,2'-(PrE)-substituted diphenylacetylenes (1-E, E=P, As) were employed for the preparation of [ECCE]-coordinated ruthenium complexes. The reactions between 1-E and cis-(MeCN)(COD)RuCl led to the required Ru(II) starting materials cis-[ECCE]RuCl(MeCN) (3-E). Upon oxidation of 3-E with PhICl, the Ru(III) target complexes [ECCE]RuCl (7-E) were detectable for E=P and E=As, but only the arsa-derivative 7-As was obtained in a pure form, namely via oxidation of cis-[AsCCAs]RuCl(THT) (THT=tetrahydrothiophene).

Mitoregulin self-associates to form likely homo-oligomeric pore-like complexes.

We and others previously found that a misannotated long noncoding RNA encodes for a conserved mitochondrial transmembrane microprotein named Mitoregulin (Mtln). Beyond an established role for Mtln in lipid metabolism, Mtln has been shown to broadly influence mitochondria, boosting respiratory efficiency and Ca retention capacity, while lowering ROS, yet the underlying mechanisms remain unresolved. Prior studies have identified possible Mtln protein interaction partners; however, a lack of consensus persists, and no claims have been made about Mtln's structure.

Psychological factors associated with Long COVID: a systematic review and meta-analysis.

Background: Despite the immense impact of Long COVID on public health and those affected, its aetiology remains poorly understood. Findings suggest that psychological factors such as depression contribute to symptom persistence alongside pathophysiological mechanisms, but knowledge of their relative importance is limited. This study aimed to synthesise the current evidence on psychological factors potentially associated with Long COVID and condition-relevant outcomes like quality of life.