Objective:To search and summarize the best evidence for preoperative prehabilitation in patients with lung cancer complicated by chronic obstructive pulmonary disease and to inform the management of preoperative prehabilitation in patients with lung cancer combined with COPD by clinical providers.Methods:Systematically guideline websites, professional society websites, evidence-based databases, and comprehensive databases were searched for types of literature including clinical decision making, guidelines, expert consensus, evidence summaries, systematic evaluations, Meta-analyses, and randomized controlled trials. The time for the retrieval was from the inception of databases until October 31th, 2023. And the quality of the included literature was evaluated and evidence was extracted, evaluated the quality of the included literature, and extracted evidence.Results:Finally, 18 articles were included, including 8 guidelines, 8 expert consensus, and 2 systematic reviews. Summarized the 30 best evidence in 4 areas of prerehabilitation: need, timing, location, content (including smoking cessation management, respiratory exercise, exercise, nutritional support, and medication management).Conclusions:This study summarizes the best evidence for preoperative prehabilitation in patients with lung cancer combined with chronic obstructive pulmonary disease, and healthcare professionals should be mindful of the need to develop preoperative prehabilitation protocols judiciously, taking into account the specific clinical context during the subsequent translation of the evidence to the clinic.

Objective:To investigate the expression of microRNA-27b (miRNA-27b) , miRNA-221 and miRNA-222 in keloids and their relationship with vascular endothelial growth factor (VEGF).Methods:From January 2021 to January 2022, 36 cases of keloid tissue (keloid group) , 36 cases of normal adjacent scar tissue (normal control group) and 12 cases of flat scar (flat scar group) were selected from Dermatology and Venereology Department of Xinjiang Uygur Autonomous Region People’ s Hospital. VEGF protein expression and microvascular density in the three groups were determined by immunohistochemistry, and the expression levels of miRNA-27b, miRNA-221 and miRNA-222 were detected by real-time quantitative PCR. SPSS 27. 0 statistical software was used for analysis. The measurement data of normal distribution were expressed as Mean ± SD. ANOVA was used for multi-group comparison, and LSD method was used for pound-for-pair multiple comparison. The measurement data of non-normal distribution were expressed as M ( Q1, Q3) , and Kruskal-Wallis H test was used for comparison between groups. Spearman correlation analysis was used for correlation analysis among data. All tests were bilateral tests, and P<0. 05 was considered statistically significant. Results:The levels of VEGF protein and microvascular count in keloid group [(0. 28±0. 08) , (47. 78±14. 06) bar/×400 view] were significantly higher than those in normal control group [(0.09±0.05), (10.25±5.08) bar/×400 view] and flat scar group [(0.19±0.06) , (23.75±7.94) bar/× 400 view] , the difference was statistically significant ( P < 0. 01) . The expression level of miR-27b in keloid group [0.50 (0.32, 0.64) ] was significantly lower than that in normal control group [0.69 (0.37, 1.69) ] and flat scar group [1.35 (0.68, 1.74) ] , the difference was statistically significant ( P<0. 05). There were no significant difference in the expression levels of miR-221 and miR-222 among the three groups ( P>0. 05 ). Correlation analysis showed that miR-27b, miR-221, miR-222 were positively correlated with VEGF protein expression in keloid group ( r=0.36, 0.41, 0.37, P<0. 05). Conclusions:miR-27b, miR-221 and miR-222 in keloid are positively correlated with the expression of VEGF, which may have certain regulatory effects on its angiogenesis, and the low expression of miR-27b may play an important role in the occurrence and development of keloid.

Objective:To investigate the expression of microRNA-27b (miRNA-27b) , miRNA-221 and miRNA-222 in keloids and their relationship with vascular endothelial growth factor (VEGF).Methods:From January 2021 to January 2022, 36 cases of keloid tissue (keloid group) , 36 cases of normal adjacent scar tissue (normal control group) and 12 cases of flat scar (flat scar group) were selected from Dermatology and Venereology Department of Xinjiang Uygur Autonomous Region People’ s Hospital. VEGF protein expression and microvascular density in the three groups were determined by immunohistochemistry, and the expression levels of miRNA-27b, miRNA-221 and miRNA-222 were detected by real-time quantitative PCR. SPSS 27. 0 statistical software was used for analysis. The measurement data of normal distribution were expressed as Mean ± SD. ANOVA was used for multi-group comparison, and LSD method was used for pound-for-pair multiple comparison. The measurement data of non-normal distribution were expressed as M ( Q1, Q3) , and Kruskal-Wallis H test was used for comparison between groups. Spearman correlation analysis was used for correlation analysis among data. All tests were bilateral tests, and P<0. 05 was considered statistically significant. Results:The levels of VEGF protein and microvascular count in keloid group [(0. 28±0. 08) , (47. 78±14. 06) bar/×400 view] were significantly higher than those in normal control group [(0.09±0.05), (10.25±5.08) bar/×400 view] and flat scar group [(0.19±0.06) , (23.75±7.94) bar/× 400 view] , the difference was statistically significant ( P < 0. 01) . The expression level of miR-27b in keloid group [0.50 (0.32, 0.64) ] was significantly lower than that in normal control group [0.69 (0.37, 1.69) ] and flat scar group [1.35 (0.68, 1.74) ] , the difference was statistically significant ( P<0. 05). There were no significant difference in the expression levels of miR-221 and miR-222 among the three groups ( P>0. 05 ). Correlation analysis showed that miR-27b, miR-221, miR-222 were positively correlated with VEGF protein expression in keloid group ( r=0.36, 0.41, 0.37, P<0. 05). Conclusions:miR-27b, miR-221 and miR-222 in keloid are positively correlated with the expression of VEGF, which may have certain regulatory effects on its angiogenesis, and the low expression of miR-27b may play an important role in the occurrence and development of keloid.