Disruption and adaptation: infant gut microbiota's dynamic response to SARS-CoV-2 infection.

Background: The responses of the infant gut microbiota to infection significantly disrupt the natural intrahost evolutionary processes of the microbiome. Here, we collected a 16-month longitudinal cohort of infant gut microbiomes affected by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Then, we developed a multicriteria approach to identify core interaction network driving community dynamics under environmental disturbances, which we termed the Conserved Variated Interaction Group (CVIgroup).

Extracellular Vesicles Are Prevalent and Effective Carriers of Environmental Allergens in Indoor Dust.

The global incidence of allergic diseases is rising and poses a substantial threat to human health. Allergenic proteins released by various allergenic species play a critical role in the pathogenesis of allergic diseases and have been widely detected in the environmental matrix. However, the release, presence and interaction of environmental allergens with human body remain to be elucidated.

FYN/TOPK/HSPB1 axis facilitates the proliferation and metastasis of gastric cancer.

Background: FYN is a nonreceptor tyrosine kinase that regulates diverse pathological processes. The pro-cancer role of FYN in multiple malignancies has been elucidated. However, the mechanisms that FYN promotes gastric cancer (GC) progression remain largely unknown.

Development of an enzymatic assay system of D-lactate using D-lactate dehydrogenase and a UV-LED fluorescent spectrometer.

In this study, we aimed to develop a new enzymatic assay system of d-lactate with good precision, accuracy, and sensitivity for the determination of D-lactate concentrations in rat serum. D-Lactate dehydrogenase (D-LDH) was utilized to catalyze D-lactate and NAD(+) to pyruvate and NADH, respectively. The generated NADH was excited by using a 340-nm UV-light-emitting diode (LED), and the fluorescence at 491 nm was detected to determine the concentration of D-lactate in rat serum.

[Dynamic changes of sciatic nerve conduction velocity in rats infected with Toxoplasma gondii].

Objective: To observe the dynamic changes of sciatic nerve conduction velocity of Toxoplasma gondii-infected rats at different time points.

Methods: Twenty SD rats were randomly divided into control group and Toxoplasma gondii infection group. Rats in T.