In this paper,we define a new class of control functions through aggregate special functions.These class of control functions help us to stabilize and approximate a tri-additiveψ-functional inequality to get a better...In this paper,we define a new class of control functions through aggregate special functions.These class of control functions help us to stabilize and approximate a tri-additiveψ-functional inequality to get a better estimation for permuting tri-homomorphisms and permuting tri-derivations in unital C*-algebras and Banach algebras by the vector-valued alternative fixed point theorem.展开更多
To better understand the role of the-NH_(2)group in adsorption process of phenolic wastewaters,NH_(2)-functionalized MIL-53(Al)composites with activated carbon(NH_(2)-M(Al)@(B)AC)were prepared.The results showed that ...To better understand the role of the-NH_(2)group in adsorption process of phenolic wastewaters,NH_(2)-functionalized MIL-53(Al)composites with activated carbon(NH_(2)-M(Al)@(B)AC)were prepared.The results showed that the-NH_(2)group could increase the mesopore volume for composites,which promotes mass transfer and full utilization of active sites,because hierarchical mesopore structure makes the adsorbent easier to enter the internal adsorption sites.Furthermore,the introduction of the-NH_(2)group can improve the adsorption capacity,decrease the activation energy,and enhance the interaction between the adsorbent and p-nitrophenol,demonstrating that the-NH_(2)group plays a crucial role in the adsorption of p-nitrophenol.The density functional theory calculation results show that the H-bond interaction between the-NH_(2)group in the adsorbent and the-NO_(2)in the p-nitrophenol(adsorption energy of -35.5 kJ·mol^(-1)),and base-acid interaction between the primary-NH_(2)group in the adsorbent and the acidic-OH group in the p-nitrophenol(adsorption energy of -27.3 kJ·mol^(-1))are predominant mechanisms for adsorption in terms of the NH_(2)-functionalized adsorbent.Both NH_(2)-functionalized M(Al)@AC and M(Al)@BAC composites exhibited higher p-nitrophenol adsorption capacity than corresponding nonfunctionalized composites.Among the composites,the NH_(2)-M(Al)@BAC had the highest p-nitrophenol adsorption capacity of 474 mg·g^(-1).展开更多
目的探讨2型糖尿病周围神经病变与胰岛β细胞功能的相关性。方法选取2020年1月至12月广西医科大学第二附属医院收治的298例2型糖尿病患者为研究对象,根据是否合并周围神经病变将其分为周围神经病变组(n=178)和无周围神经病变组(n=120)...目的探讨2型糖尿病周围神经病变与胰岛β细胞功能的相关性。方法选取2020年1月至12月广西医科大学第二附属医院收治的298例2型糖尿病患者为研究对象,根据是否合并周围神经病变将其分为周围神经病变组(n=178)和无周围神经病变组(n=120)。采用二两馒头餐后30min净增C肽与葡萄糖比值(ΔC肽30/ΔG30)和30min净增胰岛素与葡萄糖比值(Δ胰岛素30/ΔG30)评估早期阶段胰岛分泌功能;采用二两馒头餐后120min血糖曲线下面积(area under the curve,AUC)校正后的C肽和胰岛素AUC(C肽_(AUC)/G_(AUC)、胰岛素_(AUC)/G_(AUC))评估总的β细胞分泌功能。多因素Logistic回归分析探讨2型糖尿病并发周围神经病变的危险因素。结果周围神经病变组患者的餐后60min C肽、120min C肽、ΔC肽30/ΔG30、C肽_(AUC)/G_(AUC)均显著低于无周围神经病变组(P<0.05)。ΔC肽30/ΔG30和C肽_(AUC)/G_(AUC)与高密度脂蛋白胆固醇、空腹血糖、餐后2h血糖、糖化血红蛋白均呈负相关,与体质量指数、尿酸均呈正相关(P<0.05)。多因素Logistic回归分析结果显示,空腹血糖升高、C肽_(AUC)/G_(AUC)降低均是糖尿病患者发生周围神经病变的独立危险因素(P<0.05)。结论2型糖尿病患者胰岛β细胞功能下降是糖尿病周围神经病变发病的独立危险因素,应积极保护胰岛β细胞功能以延缓周围神经病变的发生。展开更多
目的分析基线胰岛β细胞功能与短期胰岛素治疗后2型糖尿病疾病缓解的关系。方法选取2021年1月至2023年12月于浙江省丽水市人民医院建档并行短期胰岛素治疗的2型糖尿病患者150例,收集基线临床指标、胰岛素抵抗稳态模型(homeostasis model...目的分析基线胰岛β细胞功能与短期胰岛素治疗后2型糖尿病疾病缓解的关系。方法选取2021年1月至2023年12月于浙江省丽水市人民医院建档并行短期胰岛素治疗的2型糖尿病患者150例,收集基线临床指标、胰岛素抵抗稳态模型(homeostasis model assessment of insulin resistance,HOMA-IR)、胰岛β细胞功能指数(homeostasis model assessment-β,HOMA-β)、胰岛素分泌敏感性指数-2(insulin secretion sensitivity index-2,ISSI-2)以及修正的胰岛β细胞功能指数(modifiedβ-cell function index,MBCI),按照停药后观察期内的糖尿病缓解情况分为缓解组(52例)与未缓解组(93例)。比较缓解组与未缓解组临床资料,采用多因素二元Logistic回归模型分析基线β细胞功能与短期胰岛素治疗后2型糖尿病疾病缓解的关系。结果将不符合要求的5例患者剔除后最终纳入研究患者145例。未缓解组年龄中位数50.09岁,缓解组40.83岁,基线空腹血糖水平(6.4±1.4)mmol/L、HbA1c水平(6.9±0.8)%比缓解组的(5.3±1.2)mmol/L、(6.1±0.5)%更高,HOMA-β中位数37.80、ISSI-2中位数149.24以及MBCI中位数22.94较缓解组(50.14、278.21、32.80)低,病程较缓解组长,差异有统计学意义(t/Z=-10.301、-4.974、-6.884、27.037、30.702、13.914、-4.803,P<0.05)。多因素分析结果发现,HOMA-β、ISSI-2以及MBCI均为疾病缓解的保护因素(OR=0.903、0.871、0.857,P<0.05)。结论基线胰岛β细胞功能是短期胰岛素治疗后2型糖尿病疾病缓解的主要病理生理学因素,基线胰岛β细胞功能越好疾病得到缓解的可能性也越大。展开更多
背景:阿尔茨海默病患者存在严重的脑能量障碍,近年来基于酮体干预的脑能量拯救策略在阿尔茨海默病的治疗中越来越受到重视。目的:探讨β-羟基丁酸能否改善β淀粉样蛋白1-42(β-amyloid protein 1-42,Aβ_(1-42))诱导的小鼠海马神经元HT2...背景:阿尔茨海默病患者存在严重的脑能量障碍,近年来基于酮体干预的脑能量拯救策略在阿尔茨海默病的治疗中越来越受到重视。目的:探讨β-羟基丁酸能否改善β淀粉样蛋白1-42(β-amyloid protein 1-42,Aβ_(1-42))诱导的小鼠海马神经元HT22细胞能量障碍。方法:将HT22细胞分为4组,分别为对照组、β-羟基丁酸组、Aβ_(1-42)组、Aβ_(1-42)+β-羟基丁酸组。使用相应试剂盒检测HT22细胞的存活率、ATP水平、α-酮戊二酸脱氢酶活性、Na^(+)K^(+)-ATP酶活性、线粒体膜电位及活性氧水平。结果与结论:与对照组相比,Aβ_(1-42)组HT22细胞的存活率、ATP水平、α-酮戊二酸脱氢酶活性、Na^(+)K^(+)-ATP酶活性、线粒体膜电位均显著降低(P<0.05),活性氧水平显著升高(P<0.05)。与Aβ_(1-42)组相比,Aβ_(1-42)+β-羟基丁酸组HT22细胞的存活率、ATP水平、α-酮戊二酸脱氢酶活性、Na^(+)K^(+)-ATP酶活性、线粒体膜电位均显著升高(P<0.05),活性氧水平显著降低(P<0.05)。结果表明:β-羟基丁酸提高了线粒体生物能量功能和细胞存活率,最终改善了Aβ_(1-42)诱导的HT22细胞能量障碍。展开更多
Objective: The aim of this study is to investigate how individuals with type 2 diabetes mellitus’ pancreatic β-cell function index and insulin resistance index are affected by tuberculosis infection. Methods: The st...Objective: The aim of this study is to investigate how individuals with type 2 diabetes mellitus’ pancreatic β-cell function index and insulin resistance index are affected by tuberculosis infection. Methods: The study group consisted of 89 patients with type 2 diabetes mellitus and tuberculosis infection who were admitted to Jingzhou Chest Hospital between March 2019 and March 2021. Gender and duration of diabetes were matching conditions. The control group was made up of 89 patients with type 2 diabetes who were admitted to Jingzhou Central Hospital’s endocrinology department during the same period. The two patient groups provided general information such as gender, age, length of diabetes, and blood biochemical indexes such as glycosylated hemoglobin (HbA1c), fasting glucose (FPG), and fasting C-peptide (FC-P). The HOMA calculator was used to calculate the HOMA-β and the HOMA-IR, and intergroup comparisons and correlation analyses were carried out. Results: Regarding gender, age, disease duration, FC-P, and HbA1c, the differences between the two groups were not statistically significant (P > 0.05). However, BMI, FPG, HOMA-β, and HOMA-IR showed statistically significant differences (P < 0.05). In comparison to the control group, the study group’s HOMA-β was lower and its HOMA-IR was greater. According to Spearman’s correlation analysis, HOMA-β had a negative association (P th FPG, HbA1c, and the length of the disease, and a positive correlation with BMI and FC-P. A positive correlation was found between HOMA-IR and BMI, FPG, and FC-P (P < 0.01), as well as a correlation with the length of the disease (P > 0.05) and HbA1c. Conclusions: In type 2 diabetes mellitus combined with tuberculosis infection, the patients had higher FPG levels and lower FC-P levels, the secretory function of pancreatic β-cells was more severely impaired, and insulin resistance was more obvious.展开更多
基金partially supported by the Natural Sciences and Engineering Research Council of Canada(2019-03907)。
文摘In this paper,we define a new class of control functions through aggregate special functions.These class of control functions help us to stabilize and approximate a tri-additiveψ-functional inequality to get a better estimation for permuting tri-homomorphisms and permuting tri-derivations in unital C*-algebras and Banach algebras by the vector-valued alternative fixed point theorem.
基金supported by the National Natural Science Foundation of China(22008134)。
文摘To better understand the role of the-NH_(2)group in adsorption process of phenolic wastewaters,NH_(2)-functionalized MIL-53(Al)composites with activated carbon(NH_(2)-M(Al)@(B)AC)were prepared.The results showed that the-NH_(2)group could increase the mesopore volume for composites,which promotes mass transfer and full utilization of active sites,because hierarchical mesopore structure makes the adsorbent easier to enter the internal adsorption sites.Furthermore,the introduction of the-NH_(2)group can improve the adsorption capacity,decrease the activation energy,and enhance the interaction between the adsorbent and p-nitrophenol,demonstrating that the-NH_(2)group plays a crucial role in the adsorption of p-nitrophenol.The density functional theory calculation results show that the H-bond interaction between the-NH_(2)group in the adsorbent and the-NO_(2)in the p-nitrophenol(adsorption energy of -35.5 kJ·mol^(-1)),and base-acid interaction between the primary-NH_(2)group in the adsorbent and the acidic-OH group in the p-nitrophenol(adsorption energy of -27.3 kJ·mol^(-1))are predominant mechanisms for adsorption in terms of the NH_(2)-functionalized adsorbent.Both NH_(2)-functionalized M(Al)@AC and M(Al)@BAC composites exhibited higher p-nitrophenol adsorption capacity than corresponding nonfunctionalized composites.Among the composites,the NH_(2)-M(Al)@BAC had the highest p-nitrophenol adsorption capacity of 474 mg·g^(-1).
文摘目的探讨2型糖尿病周围神经病变与胰岛β细胞功能的相关性。方法选取2020年1月至12月广西医科大学第二附属医院收治的298例2型糖尿病患者为研究对象,根据是否合并周围神经病变将其分为周围神经病变组(n=178)和无周围神经病变组(n=120)。采用二两馒头餐后30min净增C肽与葡萄糖比值(ΔC肽30/ΔG30)和30min净增胰岛素与葡萄糖比值(Δ胰岛素30/ΔG30)评估早期阶段胰岛分泌功能;采用二两馒头餐后120min血糖曲线下面积(area under the curve,AUC)校正后的C肽和胰岛素AUC(C肽_(AUC)/G_(AUC)、胰岛素_(AUC)/G_(AUC))评估总的β细胞分泌功能。多因素Logistic回归分析探讨2型糖尿病并发周围神经病变的危险因素。结果周围神经病变组患者的餐后60min C肽、120min C肽、ΔC肽30/ΔG30、C肽_(AUC)/G_(AUC)均显著低于无周围神经病变组(P<0.05)。ΔC肽30/ΔG30和C肽_(AUC)/G_(AUC)与高密度脂蛋白胆固醇、空腹血糖、餐后2h血糖、糖化血红蛋白均呈负相关,与体质量指数、尿酸均呈正相关(P<0.05)。多因素Logistic回归分析结果显示,空腹血糖升高、C肽_(AUC)/G_(AUC)降低均是糖尿病患者发生周围神经病变的独立危险因素(P<0.05)。结论2型糖尿病患者胰岛β细胞功能下降是糖尿病周围神经病变发病的独立危险因素,应积极保护胰岛β细胞功能以延缓周围神经病变的发生。
文摘目的分析基线胰岛β细胞功能与短期胰岛素治疗后2型糖尿病疾病缓解的关系。方法选取2021年1月至2023年12月于浙江省丽水市人民医院建档并行短期胰岛素治疗的2型糖尿病患者150例,收集基线临床指标、胰岛素抵抗稳态模型(homeostasis model assessment of insulin resistance,HOMA-IR)、胰岛β细胞功能指数(homeostasis model assessment-β,HOMA-β)、胰岛素分泌敏感性指数-2(insulin secretion sensitivity index-2,ISSI-2)以及修正的胰岛β细胞功能指数(modifiedβ-cell function index,MBCI),按照停药后观察期内的糖尿病缓解情况分为缓解组(52例)与未缓解组(93例)。比较缓解组与未缓解组临床资料,采用多因素二元Logistic回归模型分析基线β细胞功能与短期胰岛素治疗后2型糖尿病疾病缓解的关系。结果将不符合要求的5例患者剔除后最终纳入研究患者145例。未缓解组年龄中位数50.09岁,缓解组40.83岁,基线空腹血糖水平(6.4±1.4)mmol/L、HbA1c水平(6.9±0.8)%比缓解组的(5.3±1.2)mmol/L、(6.1±0.5)%更高,HOMA-β中位数37.80、ISSI-2中位数149.24以及MBCI中位数22.94较缓解组(50.14、278.21、32.80)低,病程较缓解组长,差异有统计学意义(t/Z=-10.301、-4.974、-6.884、27.037、30.702、13.914、-4.803,P<0.05)。多因素分析结果发现,HOMA-β、ISSI-2以及MBCI均为疾病缓解的保护因素(OR=0.903、0.871、0.857,P<0.05)。结论基线胰岛β细胞功能是短期胰岛素治疗后2型糖尿病疾病缓解的主要病理生理学因素,基线胰岛β细胞功能越好疾病得到缓解的可能性也越大。
文摘背景:阿尔茨海默病患者存在严重的脑能量障碍,近年来基于酮体干预的脑能量拯救策略在阿尔茨海默病的治疗中越来越受到重视。目的:探讨β-羟基丁酸能否改善β淀粉样蛋白1-42(β-amyloid protein 1-42,Aβ_(1-42))诱导的小鼠海马神经元HT22细胞能量障碍。方法:将HT22细胞分为4组,分别为对照组、β-羟基丁酸组、Aβ_(1-42)组、Aβ_(1-42)+β-羟基丁酸组。使用相应试剂盒检测HT22细胞的存活率、ATP水平、α-酮戊二酸脱氢酶活性、Na^(+)K^(+)-ATP酶活性、线粒体膜电位及活性氧水平。结果与结论:与对照组相比,Aβ_(1-42)组HT22细胞的存活率、ATP水平、α-酮戊二酸脱氢酶活性、Na^(+)K^(+)-ATP酶活性、线粒体膜电位均显著降低(P<0.05),活性氧水平显著升高(P<0.05)。与Aβ_(1-42)组相比,Aβ_(1-42)+β-羟基丁酸组HT22细胞的存活率、ATP水平、α-酮戊二酸脱氢酶活性、Na^(+)K^(+)-ATP酶活性、线粒体膜电位均显著升高(P<0.05),活性氧水平显著降低(P<0.05)。结果表明:β-羟基丁酸提高了线粒体生物能量功能和细胞存活率,最终改善了Aβ_(1-42)诱导的HT22细胞能量障碍。
文摘Objective: The aim of this study is to investigate how individuals with type 2 diabetes mellitus’ pancreatic β-cell function index and insulin resistance index are affected by tuberculosis infection. Methods: The study group consisted of 89 patients with type 2 diabetes mellitus and tuberculosis infection who were admitted to Jingzhou Chest Hospital between March 2019 and March 2021. Gender and duration of diabetes were matching conditions. The control group was made up of 89 patients with type 2 diabetes who were admitted to Jingzhou Central Hospital’s endocrinology department during the same period. The two patient groups provided general information such as gender, age, length of diabetes, and blood biochemical indexes such as glycosylated hemoglobin (HbA1c), fasting glucose (FPG), and fasting C-peptide (FC-P). The HOMA calculator was used to calculate the HOMA-β and the HOMA-IR, and intergroup comparisons and correlation analyses were carried out. Results: Regarding gender, age, disease duration, FC-P, and HbA1c, the differences between the two groups were not statistically significant (P > 0.05). However, BMI, FPG, HOMA-β, and HOMA-IR showed statistically significant differences (P < 0.05). In comparison to the control group, the study group’s HOMA-β was lower and its HOMA-IR was greater. According to Spearman’s correlation analysis, HOMA-β had a negative association (P th FPG, HbA1c, and the length of the disease, and a positive correlation with BMI and FC-P. A positive correlation was found between HOMA-IR and BMI, FPG, and FC-P (P < 0.01), as well as a correlation with the length of the disease (P > 0.05) and HbA1c. Conclusions: In type 2 diabetes mellitus combined with tuberculosis infection, the patients had higher FPG levels and lower FC-P levels, the secretory function of pancreatic β-cells was more severely impaired, and insulin resistance was more obvious.
