These psychoradiological findings provide insight into the regional distribution of white matter deficits in the years after illness onset in long-term schizophrenia. Findings of greater impairments in never-treated patients, and a greater age-related reduction in the genu of the corpus callosum in these patients, suggest that long-term antipsychotic treatment does not adversely affect white matter tracts over the longer-term course of illness and may confer benefits.
Perception of dangerousness and poor insight about mental illness were significant factors in involuntary psychiatric admissions in China. Factors contributing to the changes in patterns of psychiatric admissions after China's implementation of the mental health law are important topics for further research.
8530 Background: EGFR exon 19 deletion mutations are well characterized, known to be activating, and are associated with responses to EGFR tyrosine kinase inhibitors (TKIs). A variety of methods have been developed to identify EGFR mutations. Deletions of EGFR exon 19 are more complex compare to the other because they consist of different subtypes. Methods: In this study, we retrospectively analyzed the different subtypes of EGFR exon 19 deletions using next-generation sequencing(NGS). From May 2019 to December 2020, 3275 patients who were diagnosed with Non-small cell lung cancer (NSCLC)were detected. Results: In this analyzed cohort, the average age of patients was 62 years (range, 24-92 years). Most of the patients were female (61.07%) and were diagnosed with lung adenocarcinoma (82.60%). It is worth noting that the deletions in exon 19 of EGFR were also detected in 35 patients (1.07%) with squamous cell carcinoma and 1 patient (0.03%) with sarcomatoid. The most frequent EGFR exon 19 deletions were delE746-A750 (63.4%), followed by delL747-P753insS (9.7%) and L747-T751 (6.9%). The characteristics of the patients in this study are presented. Significantly, three samples with compound EGFR exon 19 deletions were detected: 1) S1:E746_A750delinsFP+E746_A750del; 2) S2: E746_S752delinsV+L747_P753delinsS; 3) S3:E746_P753delinsVS + L747_P753delinsS. Conclusions: EGFR exon 19 starting at codon 729 to 761, our data showed the deletions occur throughout almost the entire exon 19 amino acid. As our integrated data results, EGFR exon 19 has many different deletions and insertion subtypes could be defined as 79 subtypes. Among those subtypes,70 were complex with an accompanying insertion. The most frequent deletions were starting at E746 and L747. Based on several clinical researches, different deletion subtypes may have significantly different clinical responses after TKI treatment. However, more clinical research is needed to support this finding.
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