目的 探索α-突触核蛋白（α-Syn）干预对人单核细胞白血病细胞系（THP-1）巨噬细胞源性泡沫细胞的影响。方法 通过佛波酯（PMA）和氧化型低密度脂蛋白（ox-LDL）构建THP-1巨噬细胞源性泡沫细胞模型,使用不同浓度（33、66、100、133 nmol/L）α-Syn处理泡沫细胞,随后检测细胞胆固醇含量和炎症因子白细胞介素-1β（IL-1β）、白细胞介素-6（IL-6）及白细胞介素-8（IL-8）的mRNA表达以及核因子κB（NF-κB）和凝集素样氧化低密度脂蛋白受体-1（LOX-1）的蛋白表达变化。结果 高剂量（100和133 nmol/L）α-Syn处理可以减少THP-1巨噬细胞源性泡沫细胞内胆固醇的含量（P<0.05）,并且减少IL-1β、IL-6和IL-8的mRNA表达（P<0.05）。进一步发现（100 nmol/L和133 nmol/L）α-Syn可以降低THP-1巨噬细胞源性泡沫细胞p-NF-κB和LOX-1的蛋白表达（P<0.05）。结论 α-Syn可以降低THP-1源性巨噬细胞泡沫细胞胆固醇蓄积和炎症反应,可能是通过下调p-NF-κB和LOX-1蛋白表达。
Objective To explore the effects of α-synuclein（α-Syn）intervention on human monocytic leukemia cell（THP-1）macrophage-derived foam cells．Methods The THP-1 macrophage-derived foam cell model was constructed by phorbol 12-myristate 13-acetate（PMA）and oxidized low-density lipoprotein（ox-LDL）．Foam cells were treated with different concentrations（33, 66, 100, and 133 nmol/L）of α-Syn, and the cellular cholesterol contents, as well as the mRNA expression of IL-1β、IL-6 and IL-8 were detected．Subsequently,alternation in protein expression of NF-κB and LOX-1 was measured．Results High-dose（100 and 133nmol/L）α-Syn treatment significantly reduced the levels of intracellular cholesterol in THP-1-derived macrophage foam cells（P<0.05）and decreased the mRNA expression of IL-1β、IL-6 and IL-8（P<0.05）．It was further found that（100 nmol/L and 133 nmol/L）α-Syn decreased the protein expression of p-NF-κB and LOX-1 in THP-1 macrophage-derived foam cells（P<0.05）．Conclusions The results of the present study suggest that α-Syn reduces cholesterol accumulation and inflammatory response in THP-1-derived macrophage foam cells, possibly by down-regulating p-NF-κB and LOX-1 protein expression．
目的 残余胆固醇（RC）是反映动脉粥样硬化性血脂异常的重要指标，其在糖尿病合并冠心病患者中的临床意义尚不明确。本研究旨在探讨RC水平对糖尿病合并冠心病患者心力衰竭风险的预测价值，并分析其相关性。方法 本研究为回顾性横断面研究，纳入2021年1月—2024年1月期间在鹤壁市人民医院接受诊治的292例糖尿病合并冠心病患者。根据是否存在心力衰竭分为心力衰竭组（128例）和无心力衰竭组（164例）。对基线特征进行比较，采用单因素和多因素Logistic回归分析RC与心力衰竭的相关性。同时，通过限制性立方样条（RCS）分析探讨RC与心力衰竭风险的线性关系，并通过受试者操作特征（ROC）曲线和曲线下面积（AUC）评估RC的预测价值。结果 心力衰竭组患者的男性比例、高血压患病率、RC水平等高于无心力衰竭组，而估算肾小球滤过率水平显著降低（P＜0.05）。单因素分析显示，RC＞0.7 mmol/L显著增加心力衰竭风险（OR=1.854，95%CI：1.161~2.960，P=0.010）。多因素Logistic回归分析中，全调整模型结果显示，RC作为分类变量时，RC＞0.7 mmol/L的患者心力衰竭风险显著增加1.891倍（OR=1.891，95%CI：1.047~3.415，P=0.035）；作为连续变量时，RC每增加1单位，心力衰竭风险增加2.464倍（OR=2.464，95%CI：1.495~4.064，P＜0.001）；Log10RC的风险比为6.411（95%CI：2.246~18.302，P=0.001）；标化RC的风险比为1.687（95%CI：1.262~2.255，P＜0.001）。限制性立方样条分析表明RC与心力衰竭风险呈线性正相关，ROC分析显示RC预测心力衰竭的AUC为0.621（95%CI：0.555~0.687，P＜0.001）。结论 RC水平与糖尿病合并冠心病患者心力衰竭风险显著相关，且呈线性正相关。RC具有一定的预测价值，可作为该人群心力衰竭风险评估的潜在指标。
Objective Residual cholesterol（RC）is an important marker reflecting dyslipidemia associated with atherosclerosis．Its clinical significance in patients with diabetes and coronary heart disease（CHD）remains unclear．To explore the predictive value of RC level for the risk of heart failure（HF）in patients with diabetes and CHD and analyze their association．Methods This retrospective cross-sectional study included 292 patients with diabetes and CHD who were treated at Hebi People’s Hospital between January 2021 and January 2024．Patients were divided into the HF group（128 cases）and the non-HF group（164 cases）based on the presence of HF．Baseline characteristics were compared，and univariate and multivariate Logistic regression analyses were performed to assess the association between RC and HF．Additionally，restricted cubic spline（RCS）analysis was used to explore the linear relationship between RC and HF risk，and the predictive value of RC was evaluated using receiveroperating characteristic（ROC）curves and the area under the curve（AUC）．Results The HF group had significantly higher proportions of males，hypertension prevalence and RC levels，while estimated glomerular filtration rate were significantly lower compared to the non-HF group（P＜0.05）．Univariate analysis showed that RC＞0.7 mmol/L significantly increased the risk of HF（OR=1.854，95%CI：1.161–2.960，P=0.010）．In the fully adjusted multivariate Logistic regression model，RC（RC＞0.7 mmol/L）was associated with a 1.891-fold increased risk of HF as a categorical variable（OR=1.891，95%CI：1.047–3.415，P=0.035）．As a continuous variable，each increased unit in RC was associated with a 2.464-fold increased risk of HF（OR=2.464，95%CI：1.495–4.064，P＜0.001）．The odds ratios for Log10RC and standardized RC were 6.411（95%CI：2.246–18.302，P=0.001）and 1.687（95%CI：1.262–2.255，P＜0.001），respectively．ROC analysis indicated a linear positive association between RC and HF risk（P=0.002）．ROC analysis showed that RC had predictive value for HF，with an AUC of 0.621（95%CI：0.555–0.687，P＜0.001）．Conclusions RC levels are significantly associated with the risk of HF in patients with diabetes and CHD，demonstrating a linear positive correlation．RC has potential predictive value and may serve as a useful indicator for assessing HFrisk in this population．
目的 探讨胆固醇胆囊息肉形成的高危因素。方法 将广州市第一人民医院住院的219例接受腹腔镜胆囊切除的患者按照术后胆囊病理结果分为胆固醇息肉组（162例）和非胆固醇息肉组（57例）。对所有研究对象的年龄、性别、血脂水平、肝功、超敏C反应蛋白、CA199、癌胚抗原（CEA）、胆囊结石病史、糖尿病病史、肝硬化病史进行数据收集及统计学处理。结果 经非参数检验方法Mann-Whitney U分析结果显示：1. 脂代谢相关指标在胆固醇息肉组和非胆固醇息肉组间比较差异有统计学意义;2. 总胆固醇指标在胆固醇息肉组高于非胆固醇息肉组,且高于参考值范围;3. 胆固醇息肉组和非胆固醇息肉组比较部分脂代谢指标有统计学意义,但均在参考值范围内。胆固醇息肉形成的Logistic回归分析：得到的Logistic模型差异有统计学意义,χ2=179.14,P<0.001。模型纳入的8个自变量中,总胆固醇每增加一个单位,发生胆固醇息肉的风险相比于非胆固醇息肉组将增加38.2倍（P<0.05）。结论 总胆固醇是胆囊胆固醇息肉形成的高危因素。
Objective To investigate the risk factors of cholesterol polyps formation．Methods The 219 patients who underwent laparoscopic cholecystectomy in Guangzhou First People's Hospital were divided into cholesterol polyps group（162 cases）and non-cholesterol polyp group（57 cases）according to postoperative gallbladder pathological results．The age,gender,blood lipids levels,liver function,high-sensitivity C-reactive protein,CA199,carcinoembryonic antigen（CEA）,history of gallstones,diabetes,and liver cirrhosis of all patients were collected and statistically processed．Results Mann-Whitney U analysis by nonparametric test method showed that the lipid metabolism-related indexes were significantly different between the cholesterol polyps group and the non-cholesterol polyp group．The total cholesterol indexes in the cholesterol polyps group were higher than those in the non-cholesterol polyp group,and higher than the reference range．The cholesterol polyps group and the non-cholesterol polyp group had statistical significance in some lipid metabolism indexes,but they were all in the normal range．Logistic regression analysis of cholesterol polyps formation showed the obtained Logistic model was statistically significant,χ2=179.14,P<0.001．Among the 8 independent variables included in the model,total cholesterol was statistically significant．For each unit increased in total cholesterol,the risk of developing cholesterol polyps increased by 38.2 times compared with the non-cholesterol polyp group．Conclusions Total cholesterol is a high risk factor for the formation of cholesterol gallbladder polyps．
目的 分析血清小而密低密度脂蛋白胆固醇和同型半胱氨酸与脑梗死的关系。方法 择取2018年9月—2019年8月本院收治的脑梗死患者135例设为观察组,同期本院参与体检的健康志愿者135例为对照组,两组受试者均开展血液检测,收集并分析临床资料。结果 观察组性别、平均年龄、吸烟、fib水平与对照组差异无统计学意义(P＞0.05);观察组高血压患病率、糖尿病患病率、TG、LDL-C、sdLDL-C、Lp-PLA2、FBG、Hcy、D-D水平均高于对照组(P＜0.05);观察组TC、HDL-C、PT、APTT、TT水平均低于对照组(P＜0.05);按照NIHSS＜4分、4～15分、≥16分分成轻度组(甲组,n=53)、中度组(乙组,n=49)、重度组(丙组,n=33);甲组、乙组及丙组,两两亚组比较LDL-C、HDL-C、Hcy、sdLDL-C、Lp-PLA2、D-D、PT、APTT、TT及FBG,差异有统计学意义(P＜0.05);甲组、丙组饮酒率差异有统计学意义(P＜0.05);甲组与丙组、乙组与丙组冠心病患病率、Fib水平差异有统计学意义(P＜0.05)。结论 血清小而密低密度脂蛋白胆固醇和同型半胱氨酸与脑梗死有一定关联。
Objective To analyze the relationship of serum small and dense low density lipoprotein cholesterol and homocysteine in cerebral infarction. Methods 135 patients with cerebral infarction admitted to our hospital from September 2018 to August 2019 were selected as the observation group, and 135 healthy volunteers who participated in physical examination in our hospital during the same period were selected as the control group. Results There were no significant differences in sex, average age, smoking, fib level between the observation group and the control group (P>0.05). The prevalence of hypertension, diabetes mellitus, TG, LDL-C, SDLDL-C, LP-PLA2, FBG, Hcy and D-D in the observation group were all higher than those in the control group (P<0.05). The TC, HDL-C, PT, APTT and TT levels in the observation group were all lower than those in the control group (P<0.05). According to NIHSS<4 points, 4~15 points and ≥16 points, the patients were divided into mild group (group A, n=53), moderate group (group B, n=49) and severe group (group C, n=33). Ldl-c, HDL-C, Hcy, SDLDL-C, LP-PLA2, D-D, PT, APTT, TT and FBG were compared in group A, group B and group C, and the differences were statistically significant (P<0.05). The difference of drinking rate between group A and group C was statistically significant (P<0.05). The difference of coronary heart disease prevalence and Fib level between group A and group C, group B and group C was statistically significant (P<0.05). Conclusion Small and dense low density lipoprotein cholesterol and homocysteine are associated with cerebral infarction.
