Impact of oral sensory function including proprioception on swallowing in patients with stroke.

Objective: To assess oral sensory deficits and their correlation with mastication and swallowing in patients with stroke.

Design: This prospective observational study was conducted in the stroke unit of a rehabilitation hospital. The inclusion criterion was first occurrence of stroke with a unilateral lesion.

Synaptic connectivity mapping among thousands of neurons via parallelized intracellular recording with a microhole electrode array.

The massive parallelization of neuronal intracellular recording, which enables the measurement of synaptic signals across a neuronal network, and thus the mapping and characterization of synaptic connections, is an open challenge, with the state of the art being limited to the mapping of about 300 synaptic connections. Here we report a 4,096 platinum/platinum-black microhole electrode array fabricated on a complementary metal-oxide semiconductor chip for parallel intracellular recording and thus for synaptic-connectivity mapping. The microhole-neuron interface, together with current-clamp electronics in the underlying semiconductor chip, allowed a 90% average intracellular coupling rate in rat neuronal cultures, generating network-wide intracellular-recording data with abundant synaptic signals.

Genetic influence on choroidal vascularity index.

Purpose: To investigate the heritability of genetic influence on macular choroidal vascularity index (CVI).

Methods: Total choroidal area (TCA), luminal area (LA), and CVI was measured using horizontal scan of spectral-domain optical coherence tomography with enhanced depth imaging in the 373 healthy twin participants. Characteristics of the participants were investigated, including age, sex, axial length, hypertension, diabetes, drinking habits, and smoking status.

Environment-wide association study of five per- and polyfluoroalkyl substance (PFASs) exposure pathways in Korean adolescents from the Korean National Environmental Health Survey (2018-2020).

Per- and polyfluoroalkyl substances (PFASs) are widely used in consumer products and are easily encountered in daily life. PFASs that accumulate in the human body can negatively affect adolescent health. This study aimed to identify key exposure pathways that influence serum PFAS levels in Korean adolescents, using data from the Korean National Environmental Health Survey (2018-2020) cycle 4.

Taxonomic study of the genus Meigen (Diptera, Cecidomyiidae) in Korea with descriptions of seven new species.

The genus Meigen, 1818, belongs to the subfamily Micromyinae (Diptera, Cecidomyiidae). The genus, comprising 40 species, is best known in the Palearctic Region. To date, four species are recorded in Korea: , , , and .