Investigating autonomic dysfunction in post-COVID-19 syndrome from skin to brain: A case-control study using EMG-SSR and fNIRS.

Background: Autonomic dysfunction is a well-recognized complication associated with post-COVID-19 syndrome (PCS),. ANS maladaptation could underlie a potential pathogenetic mechanism of PCS, contributing to PCS symptoms. However, there remains an ongoing debate regarding whether autonomic and neuropathic symptoms observed in PCS patients are indicative of central or peripheral ANS pathology.

Integrative rehabilitation in the treatment of lumbosacral muscle strain in elite trampoline athletes: a pilot study.

Background: Lumbosacral muscle strain (LMS) is common in Chinese elite trampoline athletes. Advanced lumbar muscle activation is necessary for postural control before upper extremity voluntary movements, called anticipatory postural adjustment to reduce internal postural interference (IPI). The potential of delayed lumbar muscle activation has been reported in patients with non-specific LBP (NLBP) in response to IPI.

Flexor carpi radialis H-reflex in different body positions in patients with post-stroke.

Background: Spinal stretch reflex (SSR) hyperexcitability reflected by the H-reflex has been reported in more strongly affected extremities after stroke. The H-reflex in the lower extremities is modulated by body position normally and alternatively modulated post-stroke.

Objective: This study aimed to preliminarily explore how upper extremity (UE) H-reflexes are modulated by body position after stroke, which remains unknown.

Size-tunable copper nanocluster aggregates and their application in hydrogen sulfide sensing on paper-based devices.

Polystyrene sulfonate (PSS), a strong polyelectrolyte, was used to prepare red photoluminescent PSS-penicillamine (PA) copper (Cu) nanoclusters (NC) aggregates, which displayed high selectivity and sensitivity to the detection of hydrogen sulfide (H2S). The size of the PSS-PA-Cu NC aggregates could be readily controlled from 5.5 μm to 173 nm using different concentrations of PSS, which enabled better dispersity and higher sensitivity towards H2S.

[Cylic stretching force-induced late apoptosis in human periodontal ligament cells].

Purpose: To investigate the effect of stretching force on late apoptosis of human periodontal ligament cells.

Methods: HPDLCs were cultured in vitro, and cells were stretched by dynamic mechanical strain 1%, 10% and 20% for 6, 12, 24 and 48 h. Then late apoptosis were detected through TUNEL method binding by flow cytometry and confocal laser scanning microscopy.