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Background: Investigating adherence to the Atrial Fibrillation Better Care (ABC) pathway management and identifying gaps between the real world and established guidelines can lead to better integrated management of AF. Current data on adherence to ABC pathway management among community elderly patients with atrial fibrillation (AF) in Chinese communities is limited.Aim: To investigate the adherence to ABC pathway management among community elderly patients with AF in China.Methods: In this cross-sectional study, data were collected from the 2020 National Basic Public Health Service Program database that includes health examination information for all residents > 65 years of age in Yuexiu, Guangzhou, Guangdong Province. Demographic and clinical characteristics data from 197 community AF patients were obtained.Results: Among the 197 AF patients, 103 (52.3%) were male, 117 (59.4%) were ≥ 75 years of age, 127 (64.5%) had a senior middle school education or above, 84.3% were married, and 195 (99.0%) had medical insurance. The most common comorbidities were hypertension (72.1%, 142/197), dyslipidaemia (28.4%, 56/197), CAD (28.9%, 57/197), and diabetes (24.9%, 49/197). In terms of the ABC management pathway, 21.8% (43/197), 82.7% (163/197), and 31.5% (62/197) of AF patients were classified into the A-adherent group, B-adherent group, and C-adherent group, respectively. The level of adherence to ABC pathway management was very low (9.1%, 18/197) and independently associated with age and multimorbidity.Conclusion: The level of adherence to ABC pathway management in community elderly patients with AF was unsatisfactory. Further research is warranted to improve the integrated management of AF. [ABSTRACT FROM AUTHOR]

Background: Birt-Hogg-Dubé Syndrome (BHDS) characterised by skin fibrofolliculomas, kidney tumour and pulmonary cysts/pneumothorax is caused by folliculin (FLCN) germline mutations. The pathology of both neoplasia and focused tissue loss of BHDS strongly features tissue-specific behaviour of the gene. Isolated cysts/pneumothorax is the most frequent atypical presentation of BHDS and often misdiagnosed as primary spontaneous pneumothorax (PSP). Deferential diagnosis of BHDS with isolated pulmonary presentation (PSP-BHD) from PSP is essential in lifelong surveillance for developing renal cell carcinoma., Methods: The expression profiles of microRNAs (miRNAs) in cystic lesions of PSP-BHD and PSP were determined via microarray. The selected upregulated miRNAs were further confirmed in the plasma of an expanded cohort of PSP-BHD patients by reverse transcription quantitative PCR (RT-qPCR). Their diagnostic accuracy was evaluated. Moreover, the cellular functions and targeted signalling pathways of FLCN-regulated miRNAs were assessed in various cell lines and in the lesion tissue contexts., Results: Cystic lesions of PSP-BHD and PSP showed different miRNAs profiles with a significant upregulation of miR-424-5p and let-7d-5p in PSP-BHD. The combination of the two effectively predicted BHDS patients. In vitro studies revealed a suppressive effect of FLCN on miR-424-5p and let-7d-5p expressions specifically in lung epithelial cells. The ectopic miRNAs triggered epithelial apoptosis and epithelial transition of mesenchymal cells and suppressed the reparative responses in cells and tissues with FLCN deficiency., Conclusion: The upregulation of miR-424-5p and let-7d-5p by FLCN deficiency occurred in epithelial cells and marked the PSP-BHD condition, which contributed to a focused degenerative pathology in the lung of PSP-BHD patients., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)