目的 探讨肥胖与肺功能参数的相关性。方法 将90例接受肺功能检查的患者依据体质指数（BMI）分为肥胖组（BMI≥25 kg/m²，n=50）和正常体质量组（18.5 kg/m²＜BMI≤24.9 kg/m²，n=40），比较两组各项肺功能参数的差异，包括肺通气功能的参数如［用力肺活量（FVC）、第1秒用力呼气容积（FEV₁）、1秒率（FEV₁/FVC）、最大呼气流量（PEF）］以及反映小气道功能的参数［50%最大呼气流量（MEF₅₀），25%最大呼气流量（MEF₂₅）］；比较肥胖组不同性别间上述肺功能参数的差异及其与腰围（WC）与BMI的相关性。结果 肥胖组FVC、FEV₁、FEV₁/FVC、MEF₅₀、MEF₂₅低于正常体质量组（P＜0.01）；肥胖组中男性FVC及FEV₁低于女性（P＜0.01）。相关分析结果显示，肥胖组中WC与BMI均与肺功能多个参数呈负相关趋势，其中WC的负相关趋势更突出，且与FVC呈负相关关系（P＜0.05）。结论 肥胖影响反映肺功能的多个参数，表现为肺通气功能和小气道功能多个指标水平降低，且肥胖男性更甚；在肥胖人群中，相较于BMI，WC与FVC的关系更密切。

      Objective To investigate the correlation between obesity and pulmonary function parameters．Methods Ninety patients undergoing pulmonary function testing were categorized into an obese group（BMI≥25 kg/m²，n=50）and a normal-weight group（18.5 kg/m²＜ BMI≤24.9 kg/m²，n=40）．Differences in pulmonary function parameters were compared between groups，including ventilatory parameters（forced vital capacity［FVC］，forced expiratory volume in 1 second［FEV₁］，FEV₁/FVC ratio，peak expiratory flow［PEF］） and parameters reflecting small airway function（maximum expiratory flow at 50% of forced expiratory volume［MEF₅₀］，and 25% maximum expiratory flow［MEF₂₅］）．Differences in these pulmonary function parameters between genders within the obese group and their correlations with waist circumference（WC）and BMI were also assessed．Results FVC，FEV₁，FEV₁/FVC，MEF₅₀，and MEF₂₅ were significantly lower in the obese group compared to the normal-weight group（P＜0.01）．Among obese subjects，male FVC and FEV₁ were significantly lower than female values（P＜0.01）．Correlation analysis revealed negative correlations of WC and BMI with multiple pulmonary function parameters in the obese group，with WC exhibiting a more pronounced negative correlation and a significant negative relationship with FVC（P＜0.05）．Conclusions Obesity impacts multiple parameters reflecting lung function，manifesting as reduced levels of several indicators of pulmonary ventilation and small airway function，with male obese individuals exhibiting greater impairment．Within the obese population，WC correlates more closely with FVC than BMI．

     目的   探讨2型糖尿病（T2DM）患者葡萄糖目标范围内时间（TIR）与高尿酸血症（HUA）的相关性。方法   纳入2021年10月—2024年10月厦门大学附属第一医院收治的110例T2DM合并HUA的患者，将其分为T2DM并HUA组，另选取同期110例单纯T2DM患者，分为单纯T2DM组，比较两组一般资料及实验室相关指标，采用Logistics回归模型分析T2DM患者HUA发生的影响因素。随后将110例T2DM合并HUA的患者依照其病情严重程度分为轻度组（58例）、中度组（37例）及重度组（15例），比较三组临床相关指标及TIR水平，分析临床相关指标及TIR水平与T2DM患者HUA严重程度的相关性。结果  T2DM并HUA组与单纯T2DM组患者体质指数（BMI）、糖化血红蛋白、总胆固醇、甘油三酯、血肌酐（Scr）、TIR对比差异有统计学意义（P＜0.05）；将具有统计学差异的指标纳入Logistics回归模型，以是否合并HUA作为因变量（合并HUA=1，未合并HUA=0），结果显示，BMI、糖化血红蛋白、总胆固醇、甘油三酯、Scr、TIR为T2DM患者HUA发生的重要影响因素（P＜0.05）；HUA不同严重程度患者临床相关指标及TIR水平对比发现，轻度组、中度组与重度组糖化血红蛋白、总胆固醇、甘油三酯、Scr水平对比差异无统计学意义（P＞0.05），轻度组、中度组与重度组BMI、TIR对比差异显著（P＜0.05），重度组BMI高于轻度组对比差异有统计学意义（P＜0.05），重度组TIR低于轻度组和中度组对比差异有统计学意义（P＜0.05）；Spearman相关分析显示：BMI与HUA严重程度呈正相关，TIR与HUA严重程度呈负相关（P＜0.05）。结论  TIR降低为T2DM患者HUA发生的重要影响因素之一，且TIR水平与HUA严重程度密切相关。

        Objective  To explore the correlation between time in range（TIR）of glucose and hyperuricemia（HUA）in patients with type 2 diabetes mellitus（T2DM）．Methods  From October 2021 to October 2024，110 patients with T2DM complicated with HUA admitted to our hospital were divided into T2DM with HUA group，and 110 patients with T2DM only in the same period were divided into T2DM group．The general data and laboratory related indicators of the two groups were compared，and the influencing factors of the occurrence of HUA in T2DM patients were analyzed by logistic regression model．Subsequently，110 patients with T2DM complicated with HUA were divided into mild group（58 cases），moderate group（37 cases），and severe group（15 cases）according to their severity．The clinical related indicators and TIR levels of the three groups were compared，and the correlation between clinical related indicators and TIR levels and the severity of HUA in T2DM patients was analyzed．Results  Body mass index（BMI），glycosylated hemoglobin，total cholesterol，triglyceride，and blood creatinine（Scr）between T2DM with HUA group and T2DM group were significantly different（P＜0.05）．The indicators with statistical differences were included in the logistics regression model to determine whether to merge HUA as the dependent variable（with HUA=1，without HUA=0）．The results showed that，BMI，glycosylated hemoglobin，total cholesterol，triglycerides，Scr，and TIR were important influencing factors for the occurrence of HUA in T2DM patients（P＜0.05）．Comparison of clinical indicators and TIR levels in patients with different degrees of HUA revealed no significant differences in glycosylated hemoglobin，total cholesterol，triglycerides，and Scr levels among the mild，moderate，and severe groups（P＞0.05），while there were significant differences in BMI and TIR levels among the mild，moderate，and severe groups（P＜0.05）．The difference between the severe group and the mild group was statistically significant（P＜0.05），and the difference between the severe group and the moderate group was statistically significant（P＜0.05）．The Spearman correlation analysis  results showed that BMI was positively correlated with the severity of HUA，while TIR was negatively correlated with the severity of HUA（P＜0.05）．Conclusions  The decrease of TIR is one of the important influencing factors of HUA in T2DM patients，and the level of TIR is closely related to the severity of HUA．

目的 探讨不同类型尿结石患者肠道菌群结构与尿酸代谢的相关性研究。方法 随机选取2022年5月—2023年5月广州市第一人民医院泌尿外科住院的尿结石患者60例为研究组, 选取同期体检中心健康体检人群30名为对照组,按照结石成分将研究组患者分为尿酸组和非尿酸组, 每组各30例, 所有入选患者均接受结石样本、尿样本、大便样本、血样本的采集, 所有样本经光谱、质谱、基因测序、尿常规及血生化检测 , 比较入选对象的肠道菌群及血尿生化指标变化。结果 尿酸组和非尿酸组患者的血磷（SNK-q=7.970、3.542）、血BUN（SNK-q=5.647、4.756）、血SUA（SNK-q=8.178、3.623）、血SCr（SNK-q=7.300、5.553）、血LPS（SNK-q=13.101、9.705）及24h尿酸（SNK-q=4.462、6.426）水平均高于对照组, 具有统计学意义（P<0.05）, 尿酸组和非尿酸组患者的血钙水平低于对照组（SNK-q=3.918/3.047, P<0.05）。非尿酸组患者的血磷、血SUA、血LPS均低于尿酸组, 均有统计学意义（SNK-q=4.428、4.555、3.397, P<0.05）。尿酸组和非尿酸组患者肠道中双歧杆菌数量低于对照组, 差异具有统计学意义（SNK-q=3.754、3.143, P<0.05）。非尿酸组患者肠道中乳酸杆菌数量高于对照组和尿酸组（SNK-q=4.105、3.463, P<0.05）, 尿酸组及非尿酸组患者的血尿酸及24 h尿尿酸水平与肠道双歧杆菌数量呈负相关（P<0.05）。结论 肠道双歧杆菌数量对结石患者血尿酸代谢及尿结石形成具有相关性。

Objective To explore the relationship of intestinal flora and uric acid metabolism in different urinary stones patients．Methods From May 2022 to May 2023, 60 patients with urinary stones patients in Guangzhou First People’s Hospital were selected as the study group, and 30 health check-up people in the same period of the medical examination center were selected as the control group．Study group was divided into the uric acid group and the non-uric acid group, 30 cases each group, all patients received stone samples, urine samples, stool samples,blood samples collection, mass spectrometry, gene sequencing, urine routine, blood biochemical detection were performed．Intestinal flora and blood urinary biochemical indicators of the patients were compared．Results The levels of blood phosphorus（SNK-q=7.970, 3.542）, blood BUN（SNK-q=5.647, 4.756）, blood SUA （SNK-q=8.178, 3.623）, blood SCr（SNK-q=7.300, 5.553）, blood LPS（SNK-q=13.101, 9.705）, and 24-hour urine uric acid （SNK-q=4.462, 6.426）in the uric acid group and the non-uric acid group were all higher than those in the control group,and were statistically significant（P<0.05）．The blood calcium levels of the patients in the uric acid group and the non-uric acid group were lower than those in the control group（SNK-q=3.918/3.047, P<0.05）．The blood phosphorus, blood SUA and blood LPS levels of the non-uric acid group were all lower than those of the uric acid group, and the differences were statistically significant （SNK-q=4.428, 4.555, 3.397, P<0.05）．The number of bifidobacteria in the intestines of patients in the uric acid group and the non-uric acid group was lower than that of the control group,and the differences were statistically significant（SNK-q=3.754, 3.143, P<0.05）．The number of lactobacilli in the intestines of patients in the non-uric acid group was higher than that of the control group and the uric acid group（SNK-q=4.105, 3.463, P<0.05）．The levels of blood uric acid and 24-hour urine uric acid in the uric acid group and the non-uric acid group were negatively correlated with the number of Bifidobacterium in the intestines（P<0.05）．Conclusions The number of intestinal bisidobacteria has a significant correlation with the metabolism of blood uric acid and urinary stones in patients with stones．

目的 探究25-羟维生素D[25-（OH）D]水平预测糖尿病周围神经病变发生的相关性。方法 选取2021年6月—2021年12月间在上海市静安区南京西路社区卫生服务中心就诊的200例2型糖尿病患者为研究对象,根据体格检查、血液生化、神经症状评分、肌电图等方法分为无周围神经病变组（n=153）和周围神经病变组（n=47）,对比两组患者的一般资料及血清基线25-（OH）D水平,分析25-（OH）D与糖尿病周围神经病变的相关性,采用Logistic回归分析25-（OH）D对糖尿病周围神经病变的预测价值。结果 两组患者基线25-（OH）D水平、空腹血糖、糖化血红蛋白（HbA_1c）、收缩压对比差异有统计学意义（P<0.001）,而年龄、性别、BMI、腰围、餐后血糖值、谷草转氨酶、空腹C肽、总胆固醇、高密度脂蛋白胆固醇、甘油三酯、低密度脂蛋白胆固醇（LDL-C）、血肌酐、血尿酸、舒张压对比无明显差异（P>0.05）;基线25-（OH）D水平与密歇根糖尿病周围神经病变评分（MDNS）呈负相关（r=-0.583,P<0.001）,空腹血糖与MDNS评分呈正相关（r=0.303,P<0.001）;Logistic回归分析提示,25-（OH）D每增加一个单位,糖尿病周围神经病变风险下降25%,校正性别、年龄、HbA_1c、LDL后,相关性依然存在。结论 25-（OH）D水平与糖尿病周围神经病变呈负相关,与该病的发生及发展密切相关,血清25-（OH）D水平可作为预测尿病周围神经病变发生、发展的重要指标。

Objective To explore the correlation of 25-hydroxyvitamin D[25-（OH）D] level in predicting the occurrence of diabetic peripheral neuropathy．Methods A total of 200 patients with type 2 diabetes mellitus（T2DM）who were admitted to Community Health Service Center of West Nanjing Road,Jing’an District,Shanghai from June 2021 and December 2021 were selected as the study subjects．According to physical examination,blood biochemistry,neurological symptom score and electromyography,the patients were divided into two groups：no peripheral neuropathy group（n=153）and peripheral neuropathy group（n=47）．The general data and serum baseline 25-（OH）D levels of the two groups were compared to analyze the correlation between 25-（OH）D and diabetic peripheral neuropathy．The predictive value of 25-（OH）D in diabetic peripheral neuropathy was analyzed by Logistic regression．Results There were significant differences in baseline 25-（OH）D level,fasting blood glucose（FBG）,HbA_1c and SBP between two groups（P<0.001）,but no significant differences in age,sex,BMI,waist circumference,postprandial plasma glucose,AST,C-peptid total cholesterol,HDL-C,triglyceride,LDL-C,Scr,UA and DBP between two groups（P>0.05）．Baseline 25-（OH）D level was negatively correlated with MDNS score（r=-0.583,P<0.001）,and FBG was positively correlated with MDNS score（r=0.303,P<0.001）．Logistic regression analysis showed that the DPN risk decreased by 25% for every unit increase of 25-（OH）D,and the correlation remained after timely adjustment for sex,age,HbA_1c,and LDL-C．Conclusion sThe level of 25-（OH）D is negatively correlated with the occurrence and development of diabetic peripheral neuropathy,and the detection of serum 25-（OH）D level can be used as an important indicator to predict the occurrence and development of urinary peripheral neuropathy．

目的 探讨人外周血中炎症因子的表达与炎性衰老的相关性。方法 通过招募年轻和老年志愿者,检测外周血中炎症因子IL-6、IL-8、TNF-α和IL-1β的mRNA表达水平和蛋白水平。结果 显示老年个体组中IL-6,IL-8和TNF-α的mRNA表达水平高于年轻组,且蛋白水平呈现相同的趋势,比较差异均有统计学意义（P<0.05）。此外,通过热图分析了炎症因子mRNA和蛋白水平的相对表达谱,也发现相同的结果。结论 当年龄超过65岁以后,随着年龄的增长,体内的炎症因子表达水平会升高,这一结果具有成为炎性衰老生物标志物的潜力,对评估老年人的健康状况和疾病风险具有重要意义。

Objective To explore the correlation between the expression of inflammatory factors in human peripheral blood and inflamm-aging．Methods In this experiment,the young and old volunteers were recruited to detect mRNA and protein levels of IL-6,IL-8,TNF-α and IL-1β in peripheral blood．Results The results indicated that mRNA expression levels of IL-6,TNF-α and IL-8 in the old individuals were higher than the young individuals,and the protein concentration followed the same trend,with acceptable P value suggesting a great statistically significant difference．In addition,the relative expression profiles of mRNA and protein concentrations of inflammatory cytokines were analyzed by heat map,and the same results were found．Conclusions It shows that the expression level of inflammatory cytokines up-regulates along with age goes on over 65,which has the potential of inflammatory biomarkers of aging．

目的 探讨与研究白介素-33（IL-33）、白介素-37（IL-37）、亮氨酸富集的核苷酸结合寡聚结构域-3（NLRP-3）及自然杀伤（NK）细胞/树突状细胞（DC）比值与慢性乙型肝炎（CHB）患者病情的相关性。方法 研究时间为2020年2月—2022年9月,选择在本院诊治的86例CHB患者作为肝炎组,同期选择86名体格检查健康者作为对照组。检测2组血清IL-37、IL-33、NLRP3含量,并计算NK/DC比值。对所有入选者的血清谷丙转氨酶（ALT）、谷草转氨酶（AST）、总胆红素（TBIL）含量进行检测并实施相关性分析。结果 与对照组相比,肝炎组的血清ALT、TBIL、AST有的增高趋势（P<0.05）,肝炎组的血清IL-33、IL-37、NLRP3含量更高（P<0.05）,NK/DC比值下降（P<0.05）。在肝炎组中,Pearson分析显示IL-33、IL-37、NLRP3、NK/DC比值与ALT、TBIL、AST均存在相关性（P<0.05）。在肝炎组中,ROC曲线分析显示IL-33、IL-37、NLRP3、NK/DC比值预测CHB病情的曲线下面积为0.705（95%CI：0.404~1.123）、0.690（95%CI：0.372~1.057）、0.670（95%CI：0.378~1.043）、0.685（95%CI：0.415~1.107）,联合检测预测病情的曲线下面积为0.895（95%CI：0.532~1.216）,与单独检测相比,联合检测具有更高的特异度与灵敏度。结论 CHB患者多伴随有血清IL-33、IL-37、NLRP3的高表达,并且NK/DC比值会降低,IL-33、IL-37、NLRP3及NK/DC比值与CHB患者病情存在相关性,联合检测对患者病情具有一定的预测性。

Objective To explore and study the correlation between interleukin-33(IL-33),interleukin-37(IL-37),leucine-enriched nucleotide-binding oligomeric domain(NLRP)- 3,the ratio of natural killer(NK)cells/dendritic cells(DC)and the conditions of patients with chronic hepatitis B(CHB). Methods From February 2020 to September 2022,86 patients with CHB treated in our hospital were selected as hepatitis group,and 86 healthy patients were selected as control group during the same period. The contents of IL-37,IL-33 and NLRP3 in serum of the two groups were detected,and NK/DC ratio was calculated. Serum alanine aminotransferase(ALT),aspartate aminotransferase(AST)and total bilirubin(TBIL)of all the selected subjects were detected and correlation analysis was carried out. Results Compared with the control group,the serum ALT,TBIL and AST in hepatitis group were significantly increased(P<0. 05),the contents of IL-33,IL-37 and NLRP3 were higher(P<0. 05),and the NK/DC ratio was significantly decreased(P<0. 05). In the hepatitis group,Pearson analysis showed that IL-33,IL-37,NLRP3 and NK/DC ratios were correlated with ALT,TBIL and AST(P<0. 05). In the hepatitis group,ROC curve analysis showed that the maximum areas under the curve of IL-33,IL-37,NLRP3 and NK/DC ratios were 0. 705(95%CI：0. 404-1. 123),0. 690(95%CI：0. 372-1. 057),0. 670(95%CI：0. 378-1. 043)and 0. 685(95%CI：0. 415-1. 107),and the maximum area under the curve of combined detection was 0. 895(95%CI：0. 532-1. 216). Compared with single detection,combined detection had higher specificity and sensitivity. Conclusions The patients with CHB are often accompanied by the high expression of serum IL-33,IL-37 and NLRP3,and the NK/DC ratio will be significantly reduced. IL-33,IL-37,NLRP3 and NK/DC ratio are correlated with the condition of patients with CHB,and can also predict the condition of patients.

目的 探讨2型糖尿病（T2DM）患者慢性肾脏病（CKD）发生的危险因素以及其与肥胖之间的相关性。方法 选择2019年3月—2021年12月我院收治的552例T2DM患者作为研究对象,根据是否发生CKD进行分组,其中合并CKD患者136例、未合并CKD患者416例,对2组患者的一般资料及实验室指标进行单因素回归分析比较;对于未合并CKD的T2DM患者进行为期1年的随访,统计T2DM患者CKD的发生率,并针对随访群体的一般资料及实验室指标进行对比分析,通过单因素Logistic回归分析患者发生CKD的影响因素,了解T2DM患者CKD的发生与肥胖之间的关系。结果 合并CKD和未合并CKD的T2DM患者间的年龄、病程、肝功能指标、血脂指标中的低密度脂蛋白胆固醇（LDL-C）、高密度脂蛋白胆固醇（HDL-C）、肾功能指标中的尿酸、肾小球滤过率（eGFR）比较差异均无统计学意义（均P>0.05）,组间在性别构成、BMI、血压、白蛋白、血红蛋白、血脂指标中的总胆固醇（TC）及甘油三酯（TG）、血糖及肾功能指标中尿白蛋白/肌酐比（UACR）比较差异均有统计学意义（均P<0.05）。396例未合并CKD的T2DM患者随访结果显示,随访期间发生CKD患者123例、未发生CKD患者293例,组间的性别构成、BMI、舒张压、血红蛋白、丙氨酸氨基转移酶、白蛋白、总胆红素、TC、LDL-C、HDL-C、尿酸、糖化血红蛋白及eGFR比较差异均无统计学意义（均P>0.05）,而组间年龄、病程、收缩压、天冬氨酸氨基转移酶、TG、空腹血糖（FPG）及UACR比较差异均有统计学意义（均P<0.05）。单因素Logistic回归分析结果显示,T2DM患者发生CDK的独立危险因素包括肥胖和收缩压、TG及FPG等指标升高（P<0.05）。T2DM患者的BMI与CKD的发生有关,当患者的BMI在28~31 kg/m²之间时,其CKD的发生率明显增加。结论 T2DM患者的CKD发生与肥胖因素有一定相关性,危险因素包括肥胖、血脂血压血糖异常等,T2DM患者的BMI在28~31 kg/m²之间时,其发生CKD的风险会有所增加,故需要对患者的BMI进行有效控制,降低CKD发生率,以避免病情恶化。

目的 探讨负性调节细胞CD4⁺CD25⁺T及其相关细胞因子在慢性阻塞性肺病(COPD)患者外周血中的表达与合并细菌感染的相关性。方法 纳入2018年1月—2019年12月间收治的66例COPD患者作为研究对象,其中急性加重期COPD患者(AECOPD)36例、稳定期患者30例,并纳入同期体检健康者30例作为对照组。对所有纳入的研究对象外周血标本中的CD4⁺CD25⁺T调节性T细胞及其相关细胞因子[白介素-4(IL-4)、白介素-10(IL-10)、干扰素-γ(IFN-γ)]表达水平进行检测,分析相关指标水平与COPD是否合并细菌感染的关系,及预测细菌感染的效能。结果 AECOPD和稳定期COPD患者CD4⁺、CD4⁺CD25⁺、IFN-γ/IL-4水平均低于对照组(P<0.05),IL-4、IL-10水均高于对照组(P<0.05);AECOPD患者IFN-γ水平高于对照组(P<0.05);AECOPD患者CD4⁺、CD4⁺CD25⁺水平低于稳定期COPD患者(P<0.05),IL-4、IL-10、IFN-γ均高于稳定期COPD患者(P<0.05);CD4⁺、CD4⁺CD25⁺水平与IL4、IFN-γ均呈负相关关系(P<0.05),CD4⁺水平与IL-10呈负相关关系(P<0.05);COPD合并感染者CD4⁺水平低于未合并感染者(P<0.05),IL-4、IFN-γ水平均高于未合并感染者(P<0.05);COPD合并革兰氏阴性菌感染者CD4⁺CD25⁺水平低于未合并感染者(P<0.05),IL-10水平均高于未合并感染者(P<0.05);CD4⁺、IL-4、IL-10、IFN-γ均是预测COPD患者合并细菌感染的有效指标(P<0.05),其中IL-4和IFN-γ效能较高。结论 CD4⁺、CD4⁺CD25⁺Treg细胞及其相关细胞因子参与COPD发生发展和患者细菌感染,监测其水平变化有利于为临床诊治提供信息。

Objective To investigate the correlation between the expressions of negative regulatory cell CD4⁺CD25⁺T and its related cytokines in peripheral blood and bacterial infection of patients with chronic obstructive pulmonary disease (COPD). Methods Sixty-six COPD patients admitted between January 2018 and December 2019 were included as the research subjects, including 36 patients with acute exacerbation of COPD (AECOPD) and 30 patients with stable COPD. Another 30 healthy people undergoing physical examination during the same period were included in control group. The expression levels of CD4⁺CD25⁺ regulatory T cell and its related cytokines [interleukin-4 (IL-4), interleukin-10 (IL-10), interferon-γ (IFN-γ)] in the peripheral blood samples were detected among the included subjects. The relationship between levels of related indicators and presence or absence of bacterial infection in COPD and the efficacy of predicting infection were analyzed. Results The levels of CD4⁺, CD4⁺CD25⁺ and IFN-γ/IL-4 in patients with AECOPD and patients with stable COPD were lower than those in control group (P<0.05), while the levels of IL-4 and IL-10 were higher than those in control group (P<0.05). The IFN-γ level of AECOPD patients was higher than that of control group (P<0.05). The levels of CD4⁺ and CD4⁺CD25⁺of AECOPD patients were lower than those of stable COPD patients (P<0.05), while the levels of IL-4, IL-10 and IFN-γ were all higher than those of stable COPD patients (P<0.05). The levels of CD4⁺ and CD4⁺CD25⁺were negatively correlated with IL-4 and IFN-γ (P<0.05), and the CD4⁺level was negatively correlated with IL-10 (P<0.05). The CD4⁺ level in COPD patients with infection was lower than that in patients without infection (P<0.05), while the levels of IL-4 and IFN-γ were higher than those in patients without infection (P<0.05). The CD4⁺CD25⁺level of COPD patients with Gram-negative bacteria infection was lower than that of patients without infection (P<0.05), while the IL-10 level was higher than that of patients without infection (P<0.05). CD4⁺, IL-4, IL-10 and IFN-γ were effective indicators in predicting bacterial infection in COPD patients (P<0.05), and IL-4 and IFN-γ had higher efficacy. Conclusions CD4⁺, CD4⁺CD25⁺ T cell and related cytokines are involved in the occurrence and development of COPD and bacterial infection in patients. Monitoring changes of those levels is helpful to provide information for clinical diagnosis and treatment.

目的 探究冠心病患者血清同型半胱氨酸(HCY)、血红素加氧酶-1(HO-1)水平与冠状动脉Gensini积分的相关性,并对其进行分析与探讨。方法 随机选取2020年3月—2021年7月于我院心内科行冠脉造影确诊的冠心病患者108例作为观察组和同期于我院行冠脉造影排除冠心病的健康人群33例作为对照组。根据冠心病患者的Gensini积分将其分为低分组(n=42)、中分组(n=35)和高分组(n=31)。对比观察组与对照组2组研究对象血清HCY、HO-1水平差异,冠心病患者的血清HCY、HO-1水平与Gensini积分的相关性通过Pearson相关分析法分析。结果 观察组血清HCY水平高于对照组(P＜0.05);观察组血清HO-1水平低于对照组血清HO-1水平(P＜0.05)。高分组血清HCY水平高于中分组和低分组(P＜0.05);高分组血清HO-1水平低于中分组和低分组(P＜0.05)。血清HCY水平与Gensini积分呈正相关(P＜0.05),血清HO-1水平与Gensini积分呈负相关(P＜0.05)。结论 血清HCY、HO-1水平与冠心病患者Gensini积分密切相关。

Objective To investigate the correlation between serum homocysteine (HCY), heme oxygenase-1 (HO-1) levels and coronary Gensini score in patients with coronary artery disease. Methods One hundred and eight patients with coronary artery disease diagnosed by coronary angiography in the cardiology department of our hospital from March 2020 to July 2021 were randomly included in observation group, while 33 healthy people without coronary artery disease confirmed by coronary angiography in our hospital during the same period as the control group. The 108 patients with coronary artery disease were divided into low (n=42), medium (n=35) and high (n=31) groups by coronary Gensini score. The differences in serum HCY and HO-1 levels between observation group and control group were compared, and the correlation between serum HCY, HO-1 levels and coronary Gensini score was analyzed by Pearson correlation analysis. Results The serum HCY level of the observation group was higher than that of the control group (P<0.05); the serum HO-1 level of the observation group was lower than that of the control group (P<0.05). The serum HCY level in the high group was higher than the middle group and low group (P<0.05); the serum HO-1 level in the high group was lower than the middle group and low group (P<0.05). Serum HCY level was positively correlated with coronary Gensini score (P<0.05), and serum HO-1 level was negatively correlated with coronary Gensini score (P<0.05). Conclusions Serum HCY and HO-1 levels were closely correlated with coronary Gensini score in patients with coronary artery disease.

目的 探讨应用超声心动图评价肺动脉高压(PAH)致心肌损伤的临床价值及氧化应激损伤的相关性。方法 12周龄SD大鼠48只。随机均分为4组:空白对照组、NaCl对照组、PAH 2周组及PAH 4周组。建模后,采用超声检测相关参数。HE及Masson染色观察右心室的心肌细胞及胶原纤维分布情况,测定超氧化物歧化酶(SOD)活力,还原型谷胱甘肽(GSH)和丙二醛(MDA)水平,并评价其与超声参数的相关性。结果 PAH组大鼠超声相关参数均变化明显,且逐渐加重。HE及Masson染色显示心肌细胞增大,心肌间隙中的胶原纤维明显增多,且4周组较明显。PAH组大鼠心肌组织中的SOD活力及GSH水平较低,而MDA水平较高,有变化趋势,且与超声参数有显著相关性,差异均有统计学意义(P<0.05)。结论 PAH导致大鼠右心室心肌组织结构改变,同时引起氧化应激相关指标的变化。

Objective To explore the clinical value of echocardiographic evaluation of myocardial injury caused by pulmonary hypertension (PAH) and the correlation of oxidative stress injury. Methods Forty-eight 12-week-old SD rats were collected. They were randomly divided into 4 groups: blank control group, NaCl control group, PAH 2-week group and PAH 4-week group. After modeling, ultrasound was used to detect relevant parameters. HE and Masson staining were used to observe the distribution of myocardial cells and collagen fibers in the right ventricle. Superoxide dismutase (SOD) activity, reduced glutathione (GSH) and malondialdehyde (MDA) levels were measured, and their correlations with ultrasound parameters were evaluated. Results The ultrasound-related parameters of rats in the PAH group changed significantly and gradually increased.HE and Masson staining showed that cardiac myocytes were enlarged and collagen fibers in myocardial interstices were increased, and it was more obvious in the 4-week group.In the PAH group, the SOD activity and GSH levels were lower, while the MDA levels were higher, and there was a trend of change, and there was a significant correlation with ultrasound parameters. The difference was statistically significant (P<0.05). Conclusion PAH causes changes in the myocardial tissue structure of the rat right ventricle, as well as changes in oxidative stress-related indicators.