Showing papers by "Qi Chen published in 2022"
TL;DR: The present results confirm the hierarchical processing of auditory information by showing the different involvements of the primary auditory cortex vs. the prefrontal cortex in the two types of auditory hallucinations.
Abstract: It has been well documented that the auditory system in the superior temporal cortex is responsible for processing basic auditory sound features, such as sound frequency and intensity, while the prefrontal cortex is involved in higher-order auditory functions, such as language processing and auditory episodic memory. The temporal auditory cortex has vast forward anatomical projections to the prefrontal auditory cortex, connecting with the lateral, medial, and orbital parts of the prefrontal cortex. The connections between the auditory cortex and the prefrontal cortex thus help in localizing, recognizing, and comprehending external auditory inputs. In addition, the medial prefrontal cortex (MPFC) is believed to be a core region of episodic memory retrieval and is one of the most important regions in the default mode network (DMN). However, previous neural evidence with regard to the comparison between basic auditory processing and auditory episodic memory retrieval mainly comes from fMRI studies. The specific neural networks and the corresponding critical frequency bands of neuronal oscillations underlying the two auditory functions remain unclear. In the present study, we reported results of direct cortical stimulations during stereo-electro-encephalography (SEEG) recording in a patient with drug-resistant epilepsy. Electrodes covered the superior temporal gyrus, the operculum and the insula cortex of bilateral hemispheres, the prefrontal cortex, the parietal lobe, the anterior and middle cingulate cortex, and the amygdala of the left hemisphere. Two types of auditory hallucinations were evoked with direct cortical stimulations, which were consistent with the habitual seizures. The noise hallucinations, i.e., “I could hear buzzing noises in my head,” were evoked with the stimulation of the superior temporal gyrus. The episodic memory hallucinations “I could hear a young woman who was dressed in a red skirt saying: What is the matter with you?,” were evoked with the stimulation of MPFC. The patient described how she had met this young woman when she was young and that the woman said the same sentence to her. Furthermore, by analyzing the high gamma power (HGP) induced by direct electrical stimulation, two dissociable neural networks underlying the two types of auditory hallucinations were localized. Taken together, the present results confirm the hierarchical processing of auditory information by showing the different involvements of the primary auditory cortex vs. the prefrontal cortex in the two types of auditory hallucinations.
2 citations
TL;DR: In this paper , the authors evaluated the efficiency and safety of Baofei granules (BFGs) in COPD patients with lung and spleen qi deficiency syndrome, and provided valuable clinical evidence for recommendations on COPD management by the integrated TCM and western medicine.
Abstract: Background Baofei Granules (BFGs) have been extensively applied in the clinical treatment of chronic obstructive pulmonary disease (COPD) and significantly have affected COPD patients with lung and spleen qi deficiency syndrome. However, the data from previous small-sample clinical trials are limited. This trial aimed to estimate the efficiency and safety of BFGs in COPD with lung and spleen qi deficiency syndrome. Methods It is a multicenter, randomized, double-blind, placebo-controlled phase II clinical trial. The 216 stable COPD patients will be divided randomly in a ratio of 1:1. The whole trial period consists of a 4-week introductory period, a 52-week treatment period and a 48-week follow-up. Study visits occur every 4 weeks during the treatment period and every 12 weeks during the follow-up. All the subjects will receive 10g BFGs or placebo three times per day for 56 weeks and be followed up for 48 weeks. The primary efficiency evaluation outcome will be the frequency and duration of AECOPD, and the secondary efficiency evaluation outcome will be pulmonary function tests (PFTs), modified Medical Research Council (mMRC) dyspnoea scale, six-minute walking test (6MWT), COPD assessment test (CAT) score, traditional Chinese medicine (TCM) syndrome score, the frequency of emergency medication, BODE index, and the time to first Clinically important deterioration (CID). The safety evaluation outcomes will be adverse events (AEs), vital signs, physical examination, twelve-lead electrocardiogram (ECG), and laboratory examinations. All the data will be analyzed by SAS9.4. Discussion This is the first and largest clinical trial that evaluates the efficiency and safety of BFGs for COPD with lung and spleen qi deficiency syndrome. It will provide valuable clinical evidence for recommendations on COPD management by the integrated TCM and western medicine. Trial Registration CTR20211280. Date: June 09, 2021. http://www.chinadrugtrials.org.cn/clinicaltrials.searchlistdetail.dhtml?id=383a370ecd9f43d7af6f1c8585779e1a.