目的 探讨血沉(ESR)对川崎病(KD)冠状动脉病变(CAL)的预测价值。方法 收集 2017 年 5 月— 2021 年 6 月收治入院的KD患儿的临床资料,分析ESR对KD患儿CAL发生的预测作用。结果 纳入272例KD患儿,70例KD患儿合并CAL,202例KD患儿无CAL。KD患儿的ESR升高。单因素分析提示CAL组的ESR低于非CAL组,差异有统计学意义(P＜0.05)。ROC曲线下的面积为0.586,提示ESR可作为CAL的预测因子(P＜0.05)。ESR预测川崎病冠脉病变发生的临界值为76.5 mm/h。二分类Logistic回归分析显示,ESR是KD患儿发生CAL的独立危险因素(P＜0.05),当ESR＜76.5 mm·h^-1时,KD患儿CAL发生风险增加 (OR=2.38,95% CI: 1.25~4.53)。结论 KD急性期的ESR水平可用于预测KD患儿CAL的发生,ESR＜76.5 mm·h^-1时,提示KD患儿可能会出现CAL。

Objective To investigate the predictive value of erythrocyte sedimentation rate (ESR) on coronary artery lesions (CAL) in Kawasaki disease (KD). Methods Clinical data of children with KD admitted to the hospital from May 2017 to June 2021 were collected to analyze the predictive value of ESR on the occurrence of CAL in children with KD. Results Of the 272 enrolled children with KD, 70 children with CAL and 202 children without CAL. ESR was significantly higher in children with KD. Univariate analysis suggested that ESR was lower in the CAL group than in the non-CAL group, and the difference was statistically significant (P<0.05). The area under the ROC curve was 0.586, suggesting that ESR could be a predictor of CAL (P<0.05). The critical value of ESR for predicting the occurrence of CAL in KD was 76.5 mm/h. Dichotomous Logistic regression analysis showed that ESR was an independent risk factor for the development of CAL in children with KD (P<0.05), and the risk of CAL in children with KD was significantly increased when ESR was<76.5 mm/h. (OR = 2.38, 95% CI: 1.25-4.53). Conclusions ESR levels in the acute phase of KD can be used to predict the development of CAL in children with KD, and ESR <76.5 mm/h suggests that children with KD may develop CAL.

目的 观察阶梯式呼吸管理策略在改善感染性休克伴急性肺损伤（ALI）患者中的价值。方法 纳入我院2019年1月—2020年12月收治的感染性休克伴ALI患者共146例为研究对象,数字表法随机分为观察组（73例）与对照组（73例）。对照组常规护理方案,观察组阶梯式呼吸管理,对比干预前后患者心肺功能的差异。结果 观察组平均动脉压、PaCO₂水平低于对照组,心脏指数、中心静脉压、血管外肺水指数、PaO₂与氧合指数高于对照组（P<0.05）;观察组复苏成功率与临床总有效率高于对照组,复苏时间与呼吸平稳时间低于对照组（P<0.05）;观察组气管切开率、有创呼吸机使用率及呼吸机相关性肺炎与气道并发症发生率均低于对照组（P<0.05）。结论 感染性休克并急性肺损伤患者建立阶梯化呼吸管理策略能够显著改善患者的心肺功能,提高临床复苏效果,降低相关并发症风险。

Objective To observe the value of stepwise respiratory management strategy in improving patients with septic shock and acute lung injury（ALI）．Methods A total of 146 patients with septic shock and ALI treated in our hospital from January 2019 to December 2020 were included as the research objects．They were randomly divided into observation group（73 cases）and control group（73 cases）by digital table method．The control group received routine nursing plan,and the observation group received stepwise respiratory management．The differences of cardiopulmonary function before and after the intervention were compared．Results The levels of mean arterial pressure,PaCO₂ in the observation group were significantly lower than those in the control group,cardiac index,central venous pressure,extravascular lung water index,PaO₂ and oxygenation index in the observation group were significantly higher than those in the control group（P<0.05）．The success rate of resuscitation and total clinical effective rate in the observation group were significantly higher than those in the control group,and the resuscitation time and respiratory stability time in the observation group were significantly shorter than those in the control group（P<0.05）．The tracheotomy rate,the rate of using invasive ventilator and the incidence of ventilator associated pneumonia and airway complications in the observation group were lower than those in the control group（P<0.05）．Conclusions The establishment of stepwise respiratory management strategy in patients with septic shock and ALI can significantly improve their cardiopulmonary function,improve the effect of clinical resuscitation and reduce the risk of related complications.

目的 研究CXC趋化因子配体4（CXCL4）、基质金属蛋白酶-9（MMP-9）、微小RNA-24（miR-24）对急性脑梗死（ACI）早期神经功能恶化（END）的预测价值。方法 分别选择2020年1月—2021年6月我院收治的30例ACI早期END患者（ACI+END组）,30例单纯ACI患者（ACI组）,同时期30例健康人群作为对照组,检测受试者CXCL4、MMP-9、miR-24表达情况及存在的相关性,分析血清CXCL4、MMP-9、miR-24表达情况与ACI早期发生END的关系。结果 CXCL4、MMP-9水平在对照组、ACI组、ACI+END组中依次升高,miR-24相对表达量依次降低（P<0.05）。血清CXCL4、MMP-9、miR-24水平在轻度、重度患者中呈升高趋势,miR-24相对表达呈降低趋势（P<0.05）。Logistic回归分析血清CXCL4、MMP-9、miR-24表达异常与ACI早期发生END独立相关（P<0.05）。经Pearson相关性分析发现,CXCL4与MMP-9之间呈正相关（r=0.584,P=0.001）;CXCL4、miR-24之间呈负相关（r=-0.569,P=0.001）,MMP-9、miR-24之间呈负相关（r=-0.567,P=0.001）。ROC曲线显示,与CXCL4、MMP-9、miR-24单项预测相比,三项联合对ACI的关系及对早期END的预测价值较高（P<0.05）。结论 CXCL4、MMP-9、miR-24在ACI发生END时出现异常表达,检测CXCL4、MMP-9、miR-24水平对ACI早期END具有一定预测价值,可尽早制定相关措施干预,提高治疗效率。

Objective To study the predictive value of CXC chemokine ligand 4（CXCL4）,matrix metalloproteinase-9（MMP-9）,microRNA-24（miR-24）in early neurological deterioration（END）of acute cerebral infarction（ACI）．Methods A total of 30 patients with ACI early END（ACI+END group）and 30 patients with ACI only（ACI group）who were admitted to our hospital from January 2020 to June 2021 were selected,and 30 healthy people（control group）who underwent physical examination in our hospital during the same period were selected．Expressions of CXCL4,MMP-9,and miR-24 were detected and their correlations were analyzed,and the relationship between the expressions of serum CXCL4,MMP-9,miR-24 and the early occurrence of END in ACI were analyzed．Results The levels of CXCL4 and MMP-9 were increased in the control group,ACI group and ACI+END group in turn,and the relative expression of miR-24 was decreased in turn,and the differences among the groups were statistically significant（P<0.05）．The levels of serum CXCL4,MMP-9,and miR-24 increased in mild and severe patients,while the relative expression of miR-24 decreased,and the differences between groups were statistically significant（P<0.05）．Logistic regression analysis showed that abnormal expressions of serum CXCL4,MMP-9 and miR-24 were independently correlated with the early occurrence of END in ACI（P<0.05）．After Pearson correlation analysis,it was found that there was a positive correlation between CXCL4 and MMP-9（r=0.584,P=0.001）,a negative correlation between CXCL4 and miR-24（r=-0.569,P=0.001）;a negative correlation between MMP-9 and miR-24（r=-0.567,P=0.001）．The ROC curve showed that compared with the single prediction of CXCL4,MMP-9 and miR-24,the predictive value of the combined prediction on ACI and early END were higher（P<0.05）．Conclusions CXCL4,MMP-9,and miR-24 are abnormally expressed in ACI when END occurs．Detection of CXCL4,MMP-9,and miR-24 levels has certain predictive value for early END of ACI,and relevant measures can be formulated as soon as possible to improve treatment efficiency．

目的 探讨妇科肿瘤围手术期发生静脉血栓栓塞症（VTE）的高危因素及预防措施。方法 回顾性分析2018年1月—2021年5月于中山市人民医院妇科收治的围手术期VTE患者38例（9例术前发生血栓、29例术后发生血栓）的临床特征、诊疗过程,并根据高危因素提出针对性的预防措施。结果 9例术前血栓的患者,其中恶性肿瘤、血浆D-二聚体阳性（>500 mg/L）与对照组比较差异有统计学意义（P<0.05）,而年龄、BMI、合并内科疾病与对照组比较,差异无统计学意义（P>0.05）;29例术后血栓的患者,BMI>25 kg/m²、恶性肿瘤、合并内科疾病、手术时间大于3小时、术后使用止血药物与对照组比较差异有统计学意义（P<0.05）;而年龄与手术方式与对照组比较差异无统计学意义（P>0.05）。结论 恶性肿瘤、血浆-D二聚体阳性、手术时间大于3小时、术后使用止血药物均为妇科围手术期血栓发生的高危因素,针对上述高危因素积极预防可显著降低VTE的发生。

Objective To study the high-risk factors and preventive measures of venous thromboembolism in gynecological periopreative surgery．Methods The clinical characteristics and the diagnosis and treatment of thirty-eight cases with perioperative deep venous thrombosis（nine cases with preoperative deep venous thrombosis and twenty-nine cases with postoperative deep venous thrombosis）in the department of gynecology of Zhongshan People's Hospital were analyzed retrospectively．Targeted preventive measures were put forward according to high risk factors．Results Compared with the control group,there were significance differences in malignant tumor,positive D-dimer（>500 mg/L）in nine cases with preoperative thrombosis（P<0.05）,but no significance differences in age,body mass index（BMI）,complicated with internal diseases（P>0.05）．BMI>25,malignant tumor,complicated with internal diseases,operation time more than 3 hours,postoperative usage of hemostatics in twenty-nine cases with postoperative deep venous thrombosis had statistical significance compared with the control group（P<0.05）．But age and surgery method had no statistical significance（P>0.05）between the two groups．Conclusions Malignant tumor,positive D-dimer（>500 mg/L）,operation time more than 3 hours,postoperative usage of hemostatics were the high-risk factors in gynecological periopreative surgery,active prevention against these high-risk factors can significantly reduce the incidence of venous thromboembolism.

目的 探究前瞻性护理对老年吸入性肺炎的影响和作用。方法 选择2017年8月—2018年12月住院采取常规护理的94例老年患者作为对照组,选择2019年1月—2020年10月住院的114例老年患者作为观察组进行前瞻性护理,比较对照组和观察组吸入性肺炎的发病率。结果 观察组吸入性肺炎发病率低于对照组（P<0.05）。结论 前瞻性护理可及早筛选并识别老年患者发生吸入性肺炎的危险因素,依此采取相应的护理措施,降低吸入性肺炎的发病率。

Objective To explore the effect of prospective nursing on preventing aspiration pneumonia in elderly patients．Methods A total of 94 elderly patients who were hospitalized from August 2017 to December 2018 and received routine care were selected as the control group,and 114 elderly patients who were hospitalized from January 2019 to October 2020 were selected as the observation group for prospective care,and the incidence of aspiration pneumonia in the control group and the observation group were compared．Results The incidence of aspiration pneumonia in the observation group was lower than that in the control group（P<0.05）．Conclusions Prospective nursing can identify risk factors of aspiration pneumonia in elderly patients,and take appropriate nursing measures to reduce the incidence of aspiration pneumonia．

目的 探究麦默通（Mammotome）微创旋切术加置引流对乳腺良性肿物患者术后疼痛、炎性应激指标及并发症的影响。方法 选取本院2020年1月—2022年1月收治的100例乳腺良性肿物患者,简单随机法进行分组,每位患者赋予1位随机数,1~51号为实验组,采用Mammotome微创旋切术加置引流,52~100号为对照组,实施Mammotome微创旋切术。对比2组治疗效果、围术期指标、术前及术后1 d、3 d疼痛程度（NRS评分）、术前及术后3 d炎性应激指标及并发症情况。结果 2组病灶清除率（100.00%、97.96%）、并发症发生率（3.92%、16.32%）间无差异（P>0.05）;相较于对照组,实验组手术时间较长,残腔积液较少,住院时间较短（P<0.05）;术后1 d、3 d实验组NRS评分低于对照组（P<0.05）;术后3 d 2组C反应蛋白、白介素-6、白介素-1β、降钙素原水平较术前上升,且实验组上升幅度小于对照组（P<0.05）。结论 Mammotome微创旋切术加置引流治疗乳腺良性肿物能减少残腔积液,降低炎症反应程度,有助于术后切口愈合,缓解术后疼痛,且不增加并发症风险。

Objective To investigate the effect of Mammotome minimally invasive excision with drainage on postoperative pain,inflammatory stress indexes and complications in patients with benign breast tumors．Methods A total of 100 patients with benign breast tumors admitted to our hospital from January 2020 to January 2022 were selected and grouped by simple random method,each patient was assigned a random number．Patients No.1 to No.51 were included in the experimental group,treated with Mammotome minimally invasive excision with drainage．Patients No.52 to No.100 were included in the control group,treated with Mammotome minimally invasive excision．The treatment effect,perioperative indicators,pain level（NRS score）and inflammatory stress indexes before and 1st and 3rd days after operation and complications were compared between the two groups．Results There were no significant differences in the lesion clearance rate（100.00% vs 97.96%）and the complication rate（3.92% vs 16.32%）between the two groups（P>0.05）．Compared with the control group,the experimental group had longer operation time,less residual cavity liquid and shorter hospital stay（P<0.05）．The NRS score of the experimental group was lower than that of the control group at 1st and 3rd days after operation（P<0.05）．On the third day after operation,the levels of C-reactive protein,interleukin- 6,interleukin-1β and procalcitonin in the two groups were increased compared with those before operation,and the increase in the experimental group was smaller than that in the observation group（P<0.05）．Conclusions Mammotome minimally invasive excision with drainage in the treatment of benign breast tumors can reduce residual cavity fluid accumulation,reduce the degree of inflammatory response,help postoperative incision healing,relieve postoperative pain,and without increasing the risk of complications．

目的 分析艾司氯胺酮对剖宫产术后镇痛及肾素-血管紧张素-醛固酮系统（RAAS）、产后抑郁情况发生的影响。方法 研究对象为2020年5月—2021年6月在我院行剖宫产的96例孕产妇,根据麻醉药物的不同分为研究组50例和对照组46例,2组孕产妇均给予腰硬联合麻醉行剖宫产术,研究组于手术切皮前5 min静脉注射艾司氯胺酮0.2 mg/kg,对照组静脉注射等量生理盐水。比较2组孕产妇术后疼痛评分（VAS评分）、肾素活性（PRA）、血管紧张素-II（AT-II）、醛固酮（ALD）、爱丁堡产后抑郁量表（EPDS）、不良反应的发生情况。结果 与对照组比较,术后各时间点研究组孕产妇VAS评分均明显较低,差异具有统计学意义（P<0.01）。2组T1、T2、T3各时间点RAAS各指标均明显低于T0时间点（P<0.05）;研究组在T1、T2时间点RAAS各指标均明显低于对照组,差异具有统计学意义（P<0.05）。研究组术后3 d、术后6周EPDS评分均明显低于对照组（P<0.01）。2组不良反应总发生率比较无差异（P>0.05）。结论 艾司氯胺酮用于剖宫产术后镇痛效果显著,对产妇RAAS影响较小,并可缓解产妇抑郁症状,且不良反应发生率较低。

Objective To analyze the effect of esketamine on analgesia and renin angiotensin aldosterone system（RAAS）and the occurrence of postpartum depression after cesarean delivery．Methods The subjects were 96 pregnant women who underwent cesarean section in our hospital from May 2020 to June 2021,they were divided into 50 cases in the study group and 46 cases in the control group．Both groups of pregnant women were given combined spinal epidural anesthesia for cesarean section．The patients in study group were injected with esmketamine 0.2 mg/kg intravenously 5 minutes before skin incision,and those in control group were injected with the same amount of saline intravenously．The postoperative pain scores（VAS score）,plasma renin activity（PRA）,angiotensin-II（AT-II）,aldosterone（ALD）,Edinburgh Postpartum Depression Scale（EPDS）,and the occurrence of adverse effects were compared between the two groups．Results Compared with the control group,maternal VAS scores were significantly lower in the study group at all postoperative time points,and the differences were statistically significant（P<0.01）．The indexes of RAAS were significantly lower in both groups at T1,T2 and T3 time points than at T0 time point（P<0.05）;the indexes of RAAS were significantly lower in the study group at T1 and T2 time points than in the control group,and the differences were statistically significant（P<0.05）．The postoperative EPDS scores in the study group were significantly lower than those in the control group at 3 d and 6 weeks（P<0.01）．There was no difference in the overall incidence of adverse reactions between the two groups（P>0.05）．Conclusions Esketamine is effective for postoperative analgesia after cesarean section,with less effect on maternal RAAS,and can relieve maternal depressive symptoms,and has a low incidence of adverse reactions．

目的 基于影像组学方法,探讨多层螺旋CT（MSCT）四期增强扫描单一/不同期相及不同容积感兴趣区（VOI）的选择,在术前预测原发性肝细胞癌（HCC）微血管侵犯（MVI）中的价值。方法 回顾性收集88例经手术病理证实为HCC并行术前MSCT四期增强扫描的患者,其中包括47例MVI阳性患者和41例MVI阴性患者。在MSCT增强扫描的动脉早期、动脉晚期、门静脉期及延迟期图像中手动逐层勾画肿瘤ROI,获得瘤体容积感兴趣区VOI（Vt）,然后基于计算机自动膨胀算法将Vt外扩10 mm获得瘤体及瘤周VOI（Vt+Vp）。使用Pyradiomics软件分别从Vt和Vt+Vp中提取影像组学特征,随后采用15种特征选择方法和10种分类器构建150个预测模型,并通过十折交叉检验以验证模型的效能。使用准确度、敏感度、特异度、受试者工作特性曲线下面积（AUC）评估模型的效能,并比较性能最优的前三个预测模型。结果 MSCT四期增强扫描图像中预测HCC MVI状态的影像组学模型在门静脉期的表现优于其它期相及各期相的不同组合,其中最大的AUC值在Vt和Vt+Vp两种ROI中分别为0.768和0.782。此外,基于Vt+Vp的影像组学模型对MVI的预测效能优于基于Vt的影像组学模型,基于Vt+Vp性能最优的预测模型的AUC值、准确度、敏感度和特异度分别0.782、0.728、0.745和0.705。结论 采用影像组学方法术前无创性预测HCC MVI状态首选增强扫描的门静脉期,ROI首选瘤体联合瘤周10 mm区域。

Objective To investigate the value of single or different phases of contrast-enhanced multi-slice spiral CT（MSCT）in different volumetric regions of interest（ROI）to preoperatively predict the state of microvascular invasion in primary hepatocellular carcinoma（HCC）based on radiomics methods．Methods A total of 88 patients with HCC confirmed by surgical pathology who underwent preoperative MSCT quadruple-enhanced scan were retrospectively recruited,including 47 MVI-positive patients and 41 MVI-negative patients．The ROI was manually delineated slice-by-slice in the early arterial phase,late arterial phase,portal venous phase,and equilibrium phase of enhanced MSCT images to obtain the volume of tumor VOI（Vt）,and then Vt was expanded by 10 mm through the computer expansion algorithm automatically to obtain the volume of tumor and peritumor（Vt+Vp）．Pyradiomics software was used to extract radiomic features from Vt and Vt+Vp,followed by 150 discriminant models constructed with 150 feature selection methods and 10 classifiers,and then 10-fold cross-validation was used to evaluate the performance of these models．Using accuracy,sensitivity,specificity,area under the receiver operating characteristic curve（AUC）to assess model performance．The top three predictive models with the best performance were also compared．Results The radiomics model for predicting HCC MVI status in portal venous phase among quadruple-enhanced MSCT images outperformed other phases and different combinations of phases,achieving the highest AUC values of 0.768 and 0.782 in Vt and Vt+Vp respectively．In addition,the prediction performance of the radiomics model based on Vt+Vp was superior to models based on Vt．AUC value,accuracy,sensitivity,and specificity of the model with the best performance based on Vt+Vp were 0.782,0.728,0.745 and 0.705 respectively．Conclusions Radiomics models based on the portal venous phase of contrast-enhanced MSCT and tumor combined with the 10mm peritumoral area were more recommended to be employed to preoperative non-invasively predict the state of HCC MVI．

目的 探讨术前控制营养状态评分在老年胃癌患者术后短期并发症中的应用价值。方法 回顾分析统计2015年1月—2020年12月在江苏大学附属医院接受治疗的确诊胃癌患者,根据纳入标准和排除标准,选择入组患者,收集纳入研究患者一般资料、术前实验室检测数据和术后并发症情况,计算控制营养状况（CONUT）评分,统计分析CONUT营养评分在老年胃癌患者接受胃癌D2根治术术后短期并发症的价值。结果 共223例患者纳入研究,CONUT评分的截断值为2.5,肿瘤直径的截断值为2.75 cm。CONUT评分>2.5组的平均年龄高于CONUT评分<2.5组（P=0.005 3）,且2组性别构成存在差异,男性患者多于女性（P=0.037 0）。CONUT评分>2.5组患者的肿瘤直径较大（P=0.039 4）。在术后并发症方面,CONUT评分>2.5组的术后并发症多于CONUT评分<2.5组（P=0.008 3）。单因素Logistic回归分析,年龄（OR=1.127;95%CI：1.028~1.236;P=0.011）、CONUT评分（OR=0.339;95%CI：0.151~0.764;P=0.009）是患者发生短期并发症的危险因素。多因素Logistic回归分析显示年龄（OR=1.115;95%CI：1.008~1.233;P=0.035）、CONUT评分（OR=0.414;95%CI：0.175~0.982;P=0.045）是患者发生短期并发症的危险因素。结论 CONUT评分作为老年胃癌患者术前营养评估项目可以有效预测患者术后短期并发症,进而提前进行营养干预,降低术后并发症发生率。

Objective To explore the value of controlling nutritional status score in short-term postoperative complications of elderly patients with gastric cancer．Methods The data of patients who confirmed gastric cancer and treated in the Affiliated Hospital of Jiangsu University from January 2015 to December 2020 were reviewed and analyzed．Patients were selected according to the inclusion criteria and exclusion criteria,the general data,preoperative laboratory test data and postoperative complications of the included patients were collected,and the controlling nutritional status（CONUT）score was calculated．The value of CONUT score in the short-term complications of elderly gastric cancer patients undergoing D2 radical gastrectomy for gastric cancer was evaluated．Results A total of 223 patients were included in this study．The cut-off value of CONUT score was 2.5 and the cut-off value of tumor diameter was 2.75 centimeter．The average age of the group with CONUT score > 2.5 was significantly higher than that of the group with CONUT score < 2.5（P=0.005 3）．Moreover,there was significant difference between the sex ratio of the two groups,with male more than female（P=0.037 0）．The tumor diameter was significantly larger in the group with CONUT score > 2.5（P=0.039 4）．In terms of postoperative complications,there was significantly more postoperative complications in the group with CONUT score > 2.5 than in the group with CONUT score < 2.5（P=0.008 3）．Univariate logistic regression analysis showed that age（OR=1.127;95% CI：1.028-1.236;P=0.011）and CONUT score（OR=0.339;95% CI：0.151-0.764;P=0.009）were the risk factors for short-term complications．Multivariate logistic regression analysis showed that age（OR=1.115;95% CI：1.008-1.233;P=0.035）and CONUT score（OR=0.414;95% CI：0.175-0.982;P=0.045）were the risk factors for short-term complications．Conclusions As a preoperative nutritional evaluation item for elderly patients with gastric cancer,CONUT score can effectively predict the short-term postoperative complications of patients,and then carry out nutritional intervention in advance to reduce the incidence of postoperative complications．

目的 观察2型糖尿病大鼠肝脏组织中circRNA-0003340的表达,并探讨与糖尿病的关系。方法 选取健康雄性SD大鼠30只,随机分为2组,正常对照组（NC组,n=10）与2型糖尿病组（T2DM组,n=20）,检测FPG、FINs、HbA1c、TC、TG、HDL-C、LDL-C、AST、ALT;行腹腔注射糖耐量实验和胰岛素耐量实验,计算胰岛素抵抗指数（HOMA-IR）;HE染色观察胰岛细胞形态;RT-PCR检测大鼠肝脏组织circRNA-000334的表达量。结果 与NC组比较,T2DM组的AST、ALT、FPG、HAb1c、FINs、HOMA-IR、TG、TC、LDL-C均升高（P<0.05）,HDL-C降低（P<0.05）。circRNA-0003340在T2DM组肝脏组织中的表达较NC组肝脏组织中的表达是下调的,差异有统计学意义（P<0.05）。Sperman相关分析示大鼠肝脏组织中circRNA-0003340表达水平与FPG、TG及TC呈负相关（P<0.05）。结论 circRNA-003340的表达水平可能与T2DM大鼠的糖脂代谢密切相关,circRNA-003340在肝脏组织中的表达水平下调可能参与T2DM的发生发展。

Objective To observe the expression of circRNA-0003340 in the liver tissue of type 2 diabetes mellitus （T2DM）rats and to explore its relationship with diabetes．Methods A total of 30 healthy male SD rats were randomly divided into two groups,normal control group（NC group,n=10）and T2DM group（n=20）,and fasting plasma glucose（FPG）,fasting insulins（FINS）,glycated hemoglobin（HbA1c）,total cholesterol（TC）,triglyceride (TG）,high-density lipoprotein cholesterol（HDL-C）,low-density lipoprotein cholesterol（LDL-C）,aspartate aminotransferase（AST）,alanine aminotransferase（ALT）levels were detected．Intraperitoneal glucose tolerance test and insulin tolerance test were performed to calculate the insulin resistance index（HOMA-IR）,HE staining was used to observe islet cell morphology,the expression of circRNA-000334 in rat liver tissue was detected by RT-PCR．Results Compared with the NC group,the T2DM group had increased AST,ALT,FPG,HAb1c,FINs,HOMA-IR,TG,TC,LDL-C（P<0.05）and decreased HDL-C（P<0.05）．The expression of circRNA-0003340 in liver tissue in T2DM group was down-regulated compared with that in NC group,with statistically significant difference（P<0.05）．Sperman correlation analysis showed that the expression level of circ-0003340 in rat liver tissue was negatively correlated with FPG,TG and TC（P<0.05）．Conclusions The expression level of circRNA-003340 may be closely related to the glycolipid metabolism of T2DM rats,and the downward regulation of the circRNA-003340 expression level in liver tissues may be involved in the occurrence and development of T2DM．