Altered Fetal Skeletal Muscle Nutrient Metabolism Following an Adverse In Utero Environment and the Modulation of Later Life Insulin Sensitivity

The importance of the in utero environment as a contributor to later life metabolic disease has been demonstrated in both human and animal studies. In this review, we consider how disruption of normal fetal growth may impact skeletal muscle metabolic development, ultimately leading to insulin resistance and decreased insulin sensitivity, a key precursor to later life metabolic disease. In cases of intrauterine growth restriction (IUGR) associated with hypoxia, where the fetus fails to reach its full growth potential, low birth weight (LBW) is often the outcome, and early in postnatal life, LBW individuals display modifications in the insulin-signaling pathway, a critical precursor to insulin resistance. In this review, we will present literature detailing the classical development of insulin resistance in IUGR, but also discuss how this impaired development, when challenged with a postnatal Western diet, may potentially contribute to the development of later life insulin resistance. Considering the important role of the skeletal muscle in insulin resistance pathogenesis, understanding the in utero programmed origins of skeletal muscle deficiencies in insulin sensitivity and how they may interact with an adverse postnatal environment, is an important step in highlighting potential therapeutic options for LBW offspring born of pregnancies characterized by placental insufficiency.     

Sensory Evaluation of French Fries Fried in Four Oils: Extra Caliber ZTF Samples A & C,Advantage Cotton Soy Blend,and Advantage Low Linoleic Soybean Oil

Foodservice companies have begun developing frying oils that significantly reduce trans fats; the challenge, however, is ensuring these products still satisfy consumer demand. The purpose of this study was to evaluate and compare the sensory characteristics of four trans-fat-free oils that contain different ingredients using french fries as the medium. A total of 507 panelists completed sensory evaluations for french fries prepared in the different oils for five days based on temperature, appearance, color, taste, texture, flavor intensity, and overall liking. ANOVA and Tukey post hoc tests were used to compare sensory characteristics of each type of oil on each day. The comparison results found significant differences among four samples for appearance, color, and texture but no differences for taste, flavor, and overall liking. This study suggests that strong alternatives do exist for those seeking to switch to oils offering greater nutritional benefits without compromising appearance, flavor, taste, or texture.     

Dietary fatty acids intake and mortality in patients with heart failure

ObjectiveDietary strategies in heart failure (HF) are focused on sodium and fluid restriction to minimize the risk for acute volume overload episodes. However, the importance of dietary factors beyond sodium intake in the prognosis of the disease is uncertain. The purpose of this study was to evaluate the association of macro- and micronutrients intake on 1-y mortality in patients with HF.MethodsA secondary analysis of 203 patients with chronic HF enrolled in a randomized trial of sodium reduction was completed. Patients with a complete 3-d food record at baseline were included in this analysis (N = 118); both control and intervention arms were combined. Three-d mean dietary intake was estimated. Cox multivariable regression analysis was used to evaluate the association between dietary factors and 1-y mortality.ResultsAmong the 118 included patients, 54% were men, median (25th–75th percentiles) age 66 y (52–75 y), median ejection fraction 45% (30%–60%), and ischemic etiology present in 49% of patients. The association with 1-y mortality was significant for both polyunsaturated fatty acids (PUFA; adjusted hazard ratio [HR], 0.67; 95% confidence interval [CI]. 0.51–0.86 for intake as percentage of daily energy) and saturated fatty acids (SFA; adjusted HR, 1.15; 95% CI, 1.03–1.30 for intake as percentage of daily energy). Median of intake as percentage of daily energy was 5.3% for PUFAs and 8.2% for SFAs.ConclusionsIntake of PUFAs and SFAs was independently associated with 1-y all-cause mortality in patients with chronic HF. Limiting dietary SFA and increasing PUFA intake may be advisable in this population.     

进食对肝功能检测结果的影响研究

目的探讨进食对肝功能检测的影响．方法肝病和非肝病患者各１００例，其中男１８７例，女１３例，年龄１７岁～７４岁，平均３８４岁±１６８岁．于０７：００在空腹状态和进食蛋白脂肪标准餐后２ｈ两次抽血，用日立７１５０自动生化分析仪进行ＳＢ，ＴＴＴ，ＡＳＴ，ＡＬＴ，ＡＬＰ，ＬＤＨ，γＧＴ，ＳＰ，Ａ，Ｇ十项肝功能变化的自身对照研究．结果两组进餐前后十项肝功能变化参数用ＳＡＳ软件系统处理，差异无显著性，（Ｐ＝０４７６～０９７７）．结论抽血检测肝功能不受进餐限制．     

High saturated fat and low starch and fibre are associated with hyperinsulinaemia in a non-diabetic population: The San Luis Valley Diabetes Study

Summary A geographically based sample of 1069 Hispanic and non-Hispanic white persons aged 20–74 years, living in southern Colorado and who tested normal on an oral glucose tolerance test (World Health Organization criteria) were evaluated to determine associations of dietary factors with fasting serum insulin concentrations. Subjects were seen for up to three visits from 1984 to 1992. A 24-h diet recall and fasting insulin concentrations were collected at all visits. In longitudinal data analysis, lower age, female gender, Hispanic ethnicity, higher body mass index, higher waist circumference, and no vigorous activity were significantly related to higher fasting insulin concentrations. High total and saturated fat intake were associated with higher fasting insulin concentrations after adjusting for age, sex, ethnicity, body mass index, waist circumference, total energy intake and physical activity. Dietary fibre and starch intake were inversely associated with fasting insulin concentrations. No associations with fasting insulin concentrations were observed for monounsaturated fat, polyunsaturated fat, sucrose, glucose and fructose intake. Associations were similar in men and women and for active and inactive subjects, though associations of fibre and starch intake with insulin concentrations were strongest in lean subjects. These findings support animal studies and a limited number of human population studies which have suggested that increased saturated and total fat intake and decreased fibre and starch intake increase fasting insulin concentrations and may also increase insulin resistance. These findings, which relate habitual macronutrient consumption to hyperinsulinaemia in a large population, may have implications for studies attempting primary prevention of non-insulin-dependent diabetes mellitus. [Diabetologia (1997) 40: 430–438] Received: 6 August 1996 and in revised form: 17 December 1996     

老年糖尿病脂餐后脂代谢变化规律的进一步研究

目的探讨老年糖尿病脂餐后脂代谢变化规律。方法测定30例老年糖尿病患者空腹与脂肪餐后2、4、6、8h的总胆固醇（TC）、三酰甘油（TG）、高密度脂蛋白胆固醇（HDL-C）、低密度脂蛋白胆固醇（LDL-C）、载脂蛋白A1（ApoA1）及载脂蛋白B（ApoB），并与10例健康老人及10例老年单纯高脂血症患者作对照。结果①老年糖尿病组空腹及餐后2、4、6、8h5个时点的HDL-C及ApoA，明显低于对照组（P〈0．05），其他脂代谢指标各时点组间差异均无显著性。②老年糖尿病组空腹及餐后2、4、6、8h等5个时点的TC明显低于高脂血症组（P〈0．05）；老年糖尿病组空腹及餐后2、4、8h4个时点的TG明显低于高脂血症组（P〈0．05）；老年糖尿病组餐后4、6、8h3个时点的LDL-C明显低于高脂血症组（P〈0．05）；老年糖尿病组空腹及餐后2、4、6、8h5个时点的HDL-C与高脂血症组比较，差异均无显著性；老年糖尿病组餐后2、4、6h3个时点的ApoA，明显低于高脂血症组（P〈0．05）；老年糖尿病组空腹及餐后2、4、6、8h5个时点的ApoB明显低于高脂血症组（P〈0．05）。⑧老年糖尿病组HDL-C．曲线下面积（AUC）及ApoA1-AUC明显小于对照组（P〈0．05）；老年糖尿病组LDL-C-AUC及ApoA1-AUC明显小于高脂血症组（P〈0．05）。结论HDL-C及ApoA1下降是老年糖尿病患者空腹及餐后脂代谢紊乱的主要特征。3组人群空腹血脂指标高低决定餐后血脂的变化，与是否患有糖尿病无关。     

一日三餐高脂低碳水化合物摄入对健康成人糖耐量的影响

目的观察葡萄糖耐量（OGTT）前1天高脂低碳水化合物撮入（热量相同但碳水化合物撮入减少，脂肪撮入增加）对健康成人糖耐量的影响，从而进一步确定是否OGTT前1天高脂低碳水化合物（HF）撮入导致糖耐量减低（IGT）的误诊。方法30例男性健康成人随机分为两组（HF组和对照组）进行交叉试验；分别于OGTT前1天早、中、晚餐时撮入热量相同的HF或对照配餐；次日清晨行75g OGTT；分别测定血糖、胰岛素、游离脂肪酸、甘油三酯厦胆固醇浓度；2次OGTT间隔1周。结果OGTT前1天HF使糖负荷后30、60、120分钟血糖分别升高33％、51％厦42％，胰岛素分泌指数（△I／△G）降低50％，空腹血浆游离脂肪酸（FFA）浓度上升100％，使30％健康成人被误诊为IGT。结论即使总热量撮入相同，OGTT前1天HF引起健康成人空腹血浆游离脂肪酸水平升高，抑制早期胰岛素分泌，引起糖负荷后血糖的升高，导致IGT的误诊。     

罗格列酮和二甲双胍对高脂饲养造成的胰岛素抵抗的影响

目的　观察高脂饲养正常大鼠造成胰岛素抵抗 (IR)及不同药物干预的影响。方法将 8周龄雄性SD大鼠随机分为 4组 ,每组各 11只 :正常饲养组 (NC)、高脂饲养组 (HF)、高脂 二甲双胍组 (HF Met)、高脂 罗格列酮组 (HF Ros)。罗格列酮 3mg·kg-1·d-1或二甲双胍 30 0mg·kg-1·d-1剂量进行灌胃。饲养 8周时取空腹血测游离脂肪酸 (FFA)、甘油三酯 (TG)、脂联素等。胰岛素敏感性用正常血糖高胰岛素钳夹技术稳态时的葡萄糖输注率 (GIR)来评价。结果　高脂饲养 8周后 ,与NC组相比 ,HF组呈现肥胖 ,血浆脂联素水平低 4 3 7% (P <0 0 1) ,GIR低 5 1 3% (P <0 0 1)。HF Met组体重和TG均低于HF组 ,分别低 8 4 %和 4 0 5 % ,P值均 <0 0 1,GIR高5 8 9% (P <0 0 1)。HF Ros组FFA和TG均显著低于HF组 ,分别低 2 5 3% (P <0 0 5 )和 5 4 0 %(P <0 0 1) ,血浆脂联素水平高 6 0 % (P <0 0 1) ,GIR高 14 9 6 % (P <0 0 1)。结论　 (1)正常热量高脂饲养正常SD大鼠 8周可引起肥胖 ,血浆脂联素水平下降和胰岛素抵抗。 (2 )罗格列酮和二甲双胍均可显著改善高脂饲养引发的胰岛素抵抗。前者伴有显著血FFA、TG降低和脂联素升高 ,后者伴有体重及血TG降低。     

Influence of diet intake on liver function test

ＩｎｆｌｕｅｎｃｅｏｆｄｉｅｔｉｎｔａｋｅｏｎｌｉｖｅｒｆｕｎｃｔｉｏｎｔｅｓｔＣＨＥＮＧＳｈｕＱｕａｎ，ＺＨＡＮＧＪｉＦａｎｇ，ＺＨＡＮＧＺｉＦｕ，ＱＩＡＮＭｅｉＹａｎ，ＧＵＯＸｉａｏＬｉｎｇ，ＳＨＡＮＧＷｅｎＺｈａｎｇａｎｄＬＩＤｕｏ...     

Potential reductions in ultra-processed food consumption substantially improve population cardiometabolic-related dietary nutrient profiles in eight countries

Background and aimsThe negative effect on dietary nutrient profiles is the most obvious mechanism explaining the higher risk of cardiometabolic diseases associated with increased dietary share of UPF observed in large cohort studies.We estimate the proportion of diets with excessive energy density, excessive free sugars or saturated fat contents and insufficient fiber that could be avoided, if UPF consumption was reduced to levels among lowest consumers across eight countries, as well as the proportion of diets with multiple inadequacies.Methods and resultsUsing nationally-representative cross-sectional surveys from Brazil (2008–09), Chile (2010), Colombia (2005), Mexico (2012), Australia (2011–12), the UK (2008–16), Canada (2015), and the US (2015–16), inadequate energy density (≥2.25 kcal/g) or contents of free sugars (>10% of total energy intake), saturated fats (>10% of total energy intake) and fiber (<25 g/2000 kcal) population attributable fractions were quantified.Substantial reductions in nutrient inadequacies would be observed ranging from 50.4% in Chile to 76.8% in US for dietary energy density, from 15.5% in Colombia to 68.4% in Australia for free sugars, from 9.5% in Canada to 35.0% in Mexico for saturated fats, and from 10.3% in UK to 37.9% in Mexico for fiber. Higher reductions would be observed for diets with multiple nutrient inadequacies: from 27.3% in UK to 77.7% in Australia for ≥3 and from 69.4% in Canada to 92.1% in US, for 4 inadequacies.ConclusionsLowering dietary contribution of UPF to levels among country-specific lowest consumers is a way to improve population cardiometabolic-related dietary nutrient profiles.