AIM: To observe whether arachidonic acid (AA) could induce apoptosis in mouse fibroblast cell line L929 and the potential mechanism involved. METHODS: The viability and damaged degree of L929 was monitored by MTT and the release of lactate dehydrogenase (LDH). Lipid peroxidation in L929 was measured as malondialdehyde (MDA) content by colorimetric assay. Hoechst 33258 staining was used to observe AA-induced morphological changes. Agarose gel electrophoresis was used to detect DNA fragmentation. RESULTS: Treatment of L929 cell with AA for 24 h, in the range of 40-160 ?mol/L, caused a great decrease in cell survival and increased MDA contents and the release of LDH simultaneously( P

ObjectiveTo explore the diagnoses of diseases and functioning of speech fluency disorder, analyze the main assessment content, and construct framework of intervention solution based on International Classification of Diseases 11th Revision (ICD-11), International Classification of Functioning, Disability and Health (ICF) and International Classification of Health Interventions (ICHIβ-3). MethodsThe diagnoses of diseases and functioning was discussed with ICD-11 and ICF. The assessment tools were analyzed with ICF. A holistic intervention solution was constructed with ICF and ICHIβ-3. ResultsSpeech fluency disorder is classified as 6A01.1 developmental speech fluency disorder for ICD-11. The related diseases include 6A01.0 developmental speech sound disorder, 6A01.2 developmental language disorder, cerebral palsy, MA80.0 aphasia, MA80.1 dysphasia and MA80.2 dysarthria, etc. For ICF, the categories related to speech fluency disorder might be s3 structures invovled in voice and speech; b3 voice and speech functions, especially b330 fluency and rhythm of speech functions; d1 learning and applying knowledge, d3 communication, especially d330 speaking and d355 discussion, d7 interpersonal interactions and relationships, and d9 community, social and civic life. A holistic intervention solution for speech fluency disorder was developed, involving in body structure, body function, activities and participation, and environmental factors, including assessment, training and treatment, educational counseling, and psychological and social support, etc. ConclusionA framework of diagnosis, assessment and rehabilitation has been constructed for speech fluency disorder.