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Purpose: The triglyceride-to-high-density lipoprotein-cholesterol (TG/HDL-C) ratio is considered an alternative marker for insulin resistance. This longitudinal retrospective study investigated the relationship between TG/HDL-C ratio and the risk of progression to prediabetes. Methods: We investigated 24,604 Japanese participants (14,609 men and 9,995 women) who underwent annual medical health checkups in 2017 (baseline) and 2022. All participants had no diabetes and prediabetes at baseline. No lipid-lowering medications were taken during the follow-up period. Participants were divided into four groups according to the quartiles of TG/HDL-C ratio at baseline. Multivariable-adjusted Cox regression analysis was conducted to examine hazard ratios (HRs) of progression to prediabetes. Receiver operating characteristic curves were used to determine the optimal cutoff value of TG/HDL-C ratio for prediction of prediabetes. Results: Compared with the lowest TG/HDL-C ratio quartile (Q1) group, the adjusted HRs (95% confidence intervals (CI)) of progression to prediabetes in the Q2, Q3, and Q4 groups, respectively, were 1.17 (0.92–1.47), 1.26 (1.01–1.56), and 1.77 (1.41–2.23) for men and 1.07 (0.60–1.11), 1.19 (1.08–1.29), and 1.58 (1.18–2.31) for women. For every 1 unit increase in TG/HDL-C ratio, the adjusted HRs (95% CI) for progression to prediabetes was 1.09 (1.04–1.13) in men and 1.10 (1.04–1.15) in women. The optimal TG/HDL-C ratio cutoffs were 1.71 and 0.97 in men and women, respectively, but the area under the curve was > 0.70 in both sexes. Conclusion: High TG/HDL-C ratio is a risk factor for progression to prediabetes in Japanese men and women, but it had low discriminative ability in predicting prediabetes risk. [ABSTRACT FROM AUTHOR]

Objective: Increasing evidence suggests that an increased waist-to-height ratio (WHtR) may increase the risk of non-alcoholic fatty liver disease (NAFLD). Whether this association is due to WHtR itself or mediated by WHtR-associated increases in triglyceride (TG) is uncertain. On that account, our research aims to disentangle these relationships. Methods: In this cross-sectional study, 14251 participants who participated in the medical examination program were consecutively and non-selectively collected in Murakami Memorial Hospital in Japan from 2004 to 2015. The independent and dependent variables were WHtR and NAFLD, respectively. Triglyceride was the mediating factor. The correlation between WHtR, TG, and NAFLD risk factors was examined using spearman correlation analysis. The association between WHtR or TG and NAFLD was examined using multiple logistic regression. In order to determine whether TG mediated the association between WHtR and NAFLD, a mediation analysis was performed. Results: The mean age of the included individuals was 43.53 ± 8.89 years old, and 7411 (52.00%) were male. The mean WHtR and TG were 0.46 ± 0.05, 0.89 ± 0.63, respectively. The prevalence rate of NAFLD was 2507 (17.59%). Individuals with NAFLD had significantly higher levels of WHtR and TG than those without NAFLD (P<0.05). After adjusting covariates, the multivariate linear regression analysis showed that WHtR was positively associated with TG. That was, for every 0.1 increase in WHtR, TG increased by 0.226mmol/L (b=0.226, 95%CI: 0.206, 0.247). Multiple logistic regression analysis indicated that WHtR (OR=8.743, 95% CI: 7.528, 10.153) and TG (OR=1.897, 95%CI: 1.732, 2.078) were positively associated with NAFLD. The mediation analysis showed that WHtR had a direct, significant effect on NAFLD (b=0.139, 95%CI: 0.126, 0.148), and TG partially mediated the indirect effect of WHtR on NAFLD (b=0.016, 95% CI: 0.013-0.019). TG contributed to 10.41% of WHtR-related NAFLD development. Conclusion: Findings suggest a mediation link between WHtR and TG and the risk of NAFLD. The significance of TG as a mediator deserves recognition and consideration. [ABSTRACT FROM AUTHOR]

The lipid accumulation product (LAP) is a novel, sex-specific indicator of lipid accumulation. While previous studies have investigated the relationship between LAP and diabetes, they have not specifically addressed potential sex differences in this association. The present study explores the potential sex-specific differences in the relationship between LAP and diabetes mellitus (DM) risk in the Japanese population. From 2004 to 2015, a total of 15,263 Japanese individuals without DM underwent physical assessments at Murakami Memorial Hospital. The association between LAP and incident diabetes was analyzed using Cox proportional hazards regression models, incorporating cubic spline functions and smooth curve fitting to identify potential non-linear relationships. Subgroup and sensitivity analysis assessments were conducted to validate the robustness of our findings. After adjusting for covariates, a positive association between LAP and DM risk was observed in both females (HR: 1.02, 95% CI: 1.00-1.03, P = 0.0138) and males (HR: 1.01, 95% CI: 1.00-1.01, P = 0.0314). A non-linear association between LAP and incident DM was identified for both sexes. The inflection points for LAP were 16.58 for females and 11.11 for males. In females, the HR to the left and right of the inflection point were 1.09 (95% CI: 1.02-1.17) and 1.01 (95% CI: 1.00-1.03), respectively. In males, the HR to the left and right of the inflection point were 0.92 (95% CI: 0.86-0.98) and 1.01 (95% CI: 1.00-1.01), respectively. Sensitivity analysis indicated a stronger association between LAP and DM risk. Elevated baseline LAP levels were associated with an increased risk of incident DM, with the relationship exhibiting non-linear characteristics. These findings suggest that maintaining lower LAP levels may help mitigate the risk of developing diabetes., (© 2024. The Author(s).)

Aims: Hypertriglyceridemia is a risk factor for chronic kidney disease (CKD). However, whether or not it predicts the risk of CKD progression is unknown. This study evaluated the association between serum triglyceride (TG) levels and kidney disease progression in patients with non-dialysis-dependent CKD., Methods: The Fukuoka Kidney disease Registry (FKR) study was a multicenter, prospective longitudinal cohort study. In total, 4,100 patients with CKD were followed up for 5 years. The primary outcome was the incidence of CKD progression, defined as a ≥ 1.5-fold increase in serum creatinine level or the development of end-stage kidney disease. The patients were divided into quartiles according to baseline serum TG levels under non-fasting conditions: Q1 ＜87 mg/dL; Q2, 87-120 mg/dL; Q3, 121-170 mg/dL, and Q4 ＞170 mg/dL., Results: During the 5-year observation period, 1,410 patients met the criteria for CKD progression. The multivariable-adjusted Cox proportional hazards model showed a significant association between high serum TG level and the risk of CKD progression in the model without macroalbuminuria as a covariate (multivariable hazard ratio[HR] for Q4 versus Q1, 1.20; 95% CI, 1.03-1.41; P=0.022), but the significance disappeared after adjusting for macroalbuminuria (HR for Q4 versus Q1, 1.06; 95% CI, 0.90-1.24; P=0.507)., Conclusions: The present findings suggest that individuals with high serum TG levels are more likely to develop CKD progression than those without; however, whether or not higher serum TG levels reflect elevated macroalbuminuria or lead to CKD progression via elevated macroalbuminuria is unclear.

Owing to differences in dietary preferences between men and women, the associations between dietary intake frequency and metabolic parameters may differ between the sexes. A retrospective observational study of the checkup findings of 3147 Japanese individuals (968 men, 2179 women) aged 20-59 years was conducted to examine differences in dietary habits and associations between food frequency and blood parameters (eGFR, HbA1c, uric acid, and lipids) by sex and age. Males were more likely to consume meat, fish, soft drinks, and alcohol, whereas women were more likely to consume soybeans, dairy products, vegetables, fruits, and snacks. Multivariate linear regression models adjusted for age and BMI revealed that meat intake frequency was positively associated with HbA1c (β = 0.007, p = 0.03) and negatively associated with eGFR (β = -0.3, p = 0.01) only in males, whereas fish intake frequency was positively associated with eGFR (β = 0.4, p = 0.005) only in females. Egg and soy intake frequencies were positively and negatively associated with non-HDL-C (egg: β = 0.6, p = 0.02; soy: β = -0.3, p = 0.03) only in females. Alcohol consumption frequency was associated with uric acid (M: β = 0.06, p < 0.001; F: β = 0.06, p < 0.001) and HDL-C (M: β = 1.0, p < 0.001; F: β = 1.3, p < 0.001) in both sexes. Future research is needed to determine whether varying the emphasis of dietary guidance by sex and age group is effective, since the effects of dietary preferences on metabolic parameters vary by age and sex.

Background: A rapid infusion rate for intravenous lipid emulsion (ILE) can cause adverse effects; therefore, safe and efficient infusion rates are desired. This study aimed to develop a triglyceride (TG) kinetic model after soybean oil-based ILE (SO-ILE) administration and individualize the infusion rate via a population pharmacokinetic approach.Methods: Eighty-three inpatients were enrolled in this prospective observational study. A TG kinetic model was applied to the observations based on population pharmacokinetics using a nonlinear mixed-effect model. The patients' characteristics and laboratory parameters were evaluated to identify predictors of TG kinetics, and the maximum acceptable infusion rate was defined as that for which the maximum TG concentration did not exceed 400 mg/dl in 90% of patients.Results: No adverse events associated with SO-ILE administration were observed. The developed TG kinetic model explained the observed TG concentrations and identified the baseline TG concentration and body weight as predictors of TG kinetics. The estimated maximum acceptable infusion rates greatly varied among individuals, ranging from <0.01 to 0.3 g/kg/h.Conclusion: The present study suggested the necessity and demonstrated the feasibility of individualizing the infusion rates of SO-ILE, using a population pharmacokinetic approach. [ABSTRACT FROM AUTHOR]

Shiitake (Lentinula edodes) extract, eritadenine, has been shown to reduce cholesterol levels, and its hypocholesterolemic actions are involved in the metabolism of methionine. However, the mechanisms by which eritadenine affects cholesterol metabolism in animals fed a high-fat diet containing different sources of lipids have not yet been elucidated in detail. This study was conducted to investigate the effects of shiitake supplementation on serum lipid concentrations in rats fed a diet including a high amount of a plant oil (HO [high oil] and HOS [high oil with shiitake] groups), animal fat (HF [high fat] and HFS [high fat with shiitake] groups), or MCT- (medium-chain triglyceride-) rich plant oil (HM [high MCT] and HMS [high MCT with shiitake] groups). Rats in the HOS, HFS, and HMS groups were fed shiitake. When rats were fed a diet containing shiitake, serum triglyceride, cholesterol levels, and LCAT (lecithin-cholesterol acyltransferase) activities were lower in rats given MCT-rich plant oil than in those that consumed lard. The lipid type in the diet with shiitake also affected serum cholesterol levels and LCAT activities. The diet containing MCT-rich plant oil showed the greatest rates of decrease in all serum lipid profiles and LCAT activities. These results suggest that shiitake and MCT-rich plant oil work together to reduce lipid profiles and LCAT activity in serum. [ABSTRACT FROM AUTHOR]

Background: Growing evidence has shown that lack of organizational justice (i.e., procedural justice and interactional justice) is associated with coronary heart disease (CHD) while biological mechanisms underlying this association have not yet been fully clarified. Purpose: The purpose of the present study was to investigate the cross-sectional association of organizational justice with physiological CHD risk factors (i.e., blood pressure, high-density lipoprotein [HDL] cholesterol, low-density lipoprotein [LDL] cholesterol, and triglyceride) in Japanese employees. Methods: Overall, 3598 male and 901 female employees from two manufacturing companies in Japan completed self-administered questionnaires measuring organizational justice, demographic characteristics, and lifestyle factors. They completed health checkup, which included blood pressure and serum lipid measurements. Multiple logistic regression analyses and trend tests were conducted. Results: Among male employees, multiple logistic regression analyses and trend tests showed significant associations of low procedural justice and low interactional justice with high triglyceride (defined as 150 mg/dL or greater) after adjusting for demographic characteristics and lifestyle factors. Among female employees, trend tests showed significant dose-response relationship between low interactional justice and high LDL cholesterol (defined as 140 mg/dL or greater) while multiple logistic regression analysis showed only marginally significant or insignificant odds ratio of high LDL cholesterol among the low interactional justice group. Neither procedural justice nor interactional justice was associated with blood pressure or HDL cholesterol. Conclusion: Organizational justice may be an important psychosocial factor associated with increased triglyceride at least among Japanese male employees. [ABSTRACT FROM AUTHOR]

Background Although of interest, few data exist on the clinical characteristics of Japanese patients with an extremely high triglyceride level (≥1000 mg/dL). Objective We assessed the clinical characteristics of Japanese patients with an extremely high triglyceride level. Methods We investigated the presence of coronary artery disease, history of pancreatitis, the presence of fatty liver, and the potential causes of elevated triglyceride in Japanese subjects with an extremely high level of fasting triglyceride (≥1000 mg/dL) among 70,368 subjects whose serum triglyceride was measured for any reason at Kanazawa University Hospital from April 2004 to March 2014. Results We identified 215 (0.31%) subjects (mean age, 46 years; male, 170, mean body mass index, 25 kg/m 2 ) with severe hypertriglyceridemia. Among them, 4 (1.9%) subjects were classified as type I, 97 (45.1%) subjects were type IV, and 114 (53.0%) subjects were type V hyperlipidemia, according to Fredrickson's classification. Among 215 subjects, 116 subjects (54.0%) drank alcohol, 58 (27.0%) showed heavy intake (≥60 g/d), and 64 (29.8%) subjects had diabetes. In total, 59 (27.4%) subjects had transient severe hypertriglyceridemia caused by corticosteroids (N = 19), antidepressant (N = 18), l -asparaginase and steroids for acute lymphoid leukemia (N = 15), hormone replacement therapy for breast cancer (N = 9), β-blocker (N = 5), hypothyroidism (N = 4), pregnancy (N = 4), and panhypopituitarism (N = 2). As many as 119 (55.3%) subjects exhibited fatty liver. Moreover, 12 (5.6%) and 17 (7.9%) subjects had a history of pancreatitis and coronary artery disease, respectively. Conclusions A variety of situations can cause severe hypertriglyceridemia. We suggest that potential secondary causes should be carefully assessed for such patients. [ABSTRACT FROM AUTHOR]

Background: The effects of alpha-linolenic acid (ALA) on cardiovascular risk factors considerably vary between published reports. Therefore, we investigated the effects of 12-week supplementation with flaxseed oil (FO), which is a rich source of ALA, on cardiovascular risk factors such as serum small dense low-density lipoprotein (sd-LDL) concentrations. Methods: In a randomized, double blind, crossover study, 15 subjects ingested 10 g of FO or corn oil (CO), containing 5.49 g and 0.09 g of ALA, respectively, once daily with dinner. Blood samples were collected at 0, 4 and 12 weeks, and were used for analysis of serum lipid, lipid-related proteins, serum fatty acids and serum sd-LDL cholesterol. Differences during the test period were identified using a repeated-measures analysis of variance (ANOVA) for within-group effects. Group differences were identified using paired t-test at each blood sampling time point. Results: ALA and eicosapentaenoic acid concentrations were significantly higher in the FO period at 4 and 12 weeks than in the CO period. No significant differences in docosahexaenoic acid concentrations were observed between two periods, and cholesteryl ester transfer protein and apolipoprotein B concentrations were significantly lower in the FO period than in the CO period at 12 weeks. FO supplementation was associated with a significant decrease in sd-LDL concentrations at 4 and 12 weeks, and CO supplementation had no effect. Moreover, sd-LDL concentrations were significantly lower in the FO period than in the CO period at 4 weeks. Among subjects with triglyceride (TG) concentrations of >100 mg/dl, FO supplementation markedly reduced sd-LDL concentrations at 4 and 12 weeks compared with baseline. Sd-LDL concentrations significantly differed between the periods at both 4 and 12 weeks. Conclusion: This study indicates that the FO, which is a rich source of ALA, leads to lower sd-LDL cholesterol concentrations. [ABSTRACT FROM AUTHOR]

Japanese eels store lipids in the peritoneal cavity at the glass eel stage. These lipids are presumed to be consumed as an energy source during migration from oceanic metamorphosing sites to coastal Japan. In this study we investigated the distribution and amount of triglyceride in vivo using artificially bred Japanese eel larvae. Triglycerides accumulated in vivo from the early larval stage onward, until they reached a peak volume in fully grown leptocephali, and subsequently gradually decreased during metamorphosis. Furthermore, during the late metamorphic stages of the artificially bred glass eel, triglycerides were stored mainly in the peritoneal cavity, as in wild glass eels. These observations point to a strategy that the Japanese eels use in consuming the triglycerides derived from leptocephali during metamorphosis (when they do not feed) as a source of energy. [Display omitted] • Anguilla japonica leptocephalus and glass eel were studied. • Triglyceride (TG) accumulates in the body and used for energy during development. • TG accumulates during leptocephalus stages and is partly inherited by glass eels. • TG in glass eel peritoneal cavity supplies energy for migration and morphogenesis. [ABSTRACT FROM AUTHOR]

Background: Although several studies have reported on the relationship between water exercise and health, few studies examined the effects of water exercise on both physiological and psychological health. Research question: The aim of the present study was to investigate the effects of water exercise on both physiological and psychological health Type of study: A randomised controlled trial. Methods: Twenty-seven subjects were assigned randomly to either the water exercise group (WG) (n = 15) or the control group (CG) (n = 12). The water exercise section consisted of a 45-minute/session, 1 session/week, for 10-weeks. Information on physiological health indicators were collected: sex, age, weight, waist measurement, systolic blood pressure, diastolic blood pressure, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, triglyceride (TG), and hemoglobinA1c (HbA1c). The authors conducted 10-times-sit-to-stand tests. Psychological health indicator information was also gathered: the Short-Form of the Profile of Mood States, the Self-Rating Depression Scale and the Short Form 8-Item Health Survey (SF-8). Results: HbA1c (WG was -0.2% vs. CG was -0.1%; p = 0.01) and TG (WG was -5.5 mg/dl vs. CG was 48.1 mg/dl; p = 0.04) were significantly decreased in WG. The general health perception (WG 0.9 vs. CG -4.4; p=0.03), bodily pain (WG 0.0 vs. CG -5.6; p = 0.04) and vitality (WG 0.7 vs. CG -4.3; p = 0.01) in SF-8 significantly increased in WG. Conclusion: This study showed that water exercise had several benefits, both physical and psychological. [ABSTRACT FROM AUTHOR]

Abstract: Objective: Antipsychotic-treated schizophrenia patients are susceptible to dyslipidemia. However, the results of previous studies of North American and UK populations including various races have been contradictory with regard to which lipid measure was the most affected in patients with schizophrenia taking antipsychotic agents. The aim of this study was to investigate the effect of schizophrenia patients receiving antipsychotic agents on each lipid measure in a Japanese population. Methods: The samples included 136 control individuals and 157 patients with schizophrenia treated with antipsychotic agents. Age, gender distribution and body mass index (BMI) of the controls were matched with the patients. Results: The high-density lipoprotein cholesterol (HDL-cholesterol) levels were significantly lower in patients than in the control subjects (P<.001). However, there were no significant differences in either the low-density lipoprotein cholesterol (LDL-cholesterol) or triglyceride levels between the patient and control groups. We performed a multiple linear regression analysis, and schizophrenia receiving antipsychotics was an independent predictor of decreased HDL-cholesterol. An increased BMI, male gender and cigarette smoking were also major predictors of a decreased HDL-cholesterol level (r 2=0.42, P<.001). Conclusion: At least in Japanese with schizophrenia receiving antipsychotic agents, the HDL-cholesterol levels should be closely monitored in all patients, even those who are not obese or do not smoke, to decrease their risk of cardiovascular disease. [Copyright &y& Elsevier]

Aim: The Japan Diet (JD) recommended by the Japan Atherosclerosis Society based on the traditional Japanese diet is presumably favorable for preventing atherosclerotic cardiovascular diseases, but few high-quality controlled clinical trials have examined its benefits as compared with other diets. We studied effects of nutrition education for JD intake as compared with partial JD (PJD) intake on serum lipids and inflammatory parameters in subjects with dyslipidemia., Methods: A randomized parallel controlled clinical trial was conducted on outpatients with dyslipidemia. Participants were randomly divided into the JD or the PJD group. Face-to-face nutrition education based on each diet at baseline and at 3 months, as well as monthly counseling by mail during the intervening 3-month period, were provided and participants practiced up to 6 months. Both groups were advised to reduce consumptions of animal fat/ fatty meat/poultry, confections, and alcoholic drinks. Additionally, the JD group participants were recommended to consume more fish, soybean products especially natto, vegetables, and seaweed/mushrooms/konjak, and to switch from refined to unrefined cereals or barley., Results: Mean LDL-cholesterol was 125 +/- 29 mg/dL at baseline, and the JD group ( n=49) showed a greater mean LDL-cholesterol decrease than the PJD group (n=49) [- 8 mg/dL in JD vs 1 mg/dL in PJD, difference, -9 mg/dL (95%CI, -17 to 0) p=0.043)], and triglyceride (p=0.023) and insulin (p=0.033) reductions were larger in the JD group than in the PJD group at 6 months., Conclusion: Nutrition education for JD intake was suggested to improve serum lipid and metabolic parameters in patients with dyslipidemia.

Objective Although lowering the low-density lipoprotein cholesterol (LDL-C) levels using statins can reduce cardiovascular risk, 70% of the cardiovascular risk remains despite treatment with statins. Several studies have shown that elevated triglyceride (TG)-rich lipoprotein is the primary therapeutic target for reducing the residual risk. However, conventional treatment with fibrates is frequently associated with adverse drug reactions, especially in patients with chronic kidney disease (CKD), and even with a reduction in TG. Pemafibrate is a novel selective peroxisome proliferator-activated receptor α modulator (SPPARMα) with fewer side effects and greater effectiveness that can overcome these challenges. We aimed to investigate the safety and efficacy of pemafibrate in patients with CKD and herein present a real-world profile of pemafibrate. Methods Between January 2019 and January 2020, 126 consecutive patients with hyperglyceridemia from two institutions (54 patients with CKD; 43%) who received pemafibrate were enrolled in this retrospective observational study. Blood samples were collected before (baseline) and at 24 weeks after commencing pemafibrate therapy. The primary endpoint was a decrease in the serum lipid levels. The secondary endpoints were the incidence of rhabdomyolysis, hepatargy, and an exacerbation of CKD. Results All patients, including 51% of patients who were concurrently taking statins, reported significantly reduced total cholesterol, non-high-density lipoprotein-cholesterol (non-HDL-C), LDL-C, and TG, and increased HDL-C (p<0.05). The subgroup of patients with CKD showed similar results without increased HDL-C. No adverse events were observed in any patients. Conclusion Pemafibrate has a good safety profile and efficacy for treating patients with serum lipid abnormalities, including those with CKD.

Objective: The influence of living alone on multiple food and nutrition behaviors across a range of ages and genders has not been sufficiently investigated. Moreover, to our knowledge, no studies have described both dietary status and medical examination findings in persons living alone. Among individuals who attended a health checkup in a rural town in Japan, we investigated dietary habits and medical examination findings in persons living alone and those living with one or more other persons., Methods: The participants in this investigation were 501 community-dwelling individuals aged 40 to 91 y (mean, 63.8 ± 9.9 y). Thirty-four (16.4%) of the 207 men and 45 (15.3%) of the 294 women lived alone. Dietary intake frequency of 28 types of foods and drinks, including various vegetables, fruits, meat, seafood, and dairy products, was investigated based on responses to a self-completed questionnaire. During the physical examination, body weight, body mass index, body fat percentage, and blood pressure (systolic and diastolic) were measured. Blood examination included red blood cell count, white blood cell count, platelet count, hemoglobin, hematocrit, total protein, albumin/globulin ratio, total cholesterol, triglyceride, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, creatinine, blood urea nitrogen, uric acid, and serum calcium., Results: Multivariate analysis revealed that living alone independently was associated with a reduced intake frequency of various vegetables and seafood, especially in men. Diastolic blood pressure and triglyceride levels were significantly higher in men living alone than in men living with other persons. The albumin/globulin ratio in women living alone was significantly lower than in women living with other persons., Conclusions: It was found that living alone was associated not only with a reduced quality of dietary intake but also with an unfavorable trend in some of the medical examination findings., Competing Interests: Declaration of interests The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2021 Elsevier Inc. All rights reserved.)

To examine the relation of triglycerides with ischemic heart disease (IHD) among populations with low mean total cholesterol, we conducted a 16-year prospective study of 11,068 Japanese aged 40–69 (4452 men and 6616 women with mean total cholesterol=4.73 and 5.03 mmol/l, respectively), initially free of IHD or stroke. We documented 236 IHD events comprising 133 myocardial infarctions, 68 angina pectoris and 44 sudden cardiac deaths. Median values of serum triglycerides were higher among IHD incident cases than among controls in each of subgroups of time since last meal <2, 2, 3–7 and 8 h or more. Median difference was particularly large in the subgroup of 3–7 h since last meal (0.90 mmol/l for men and 0.75 mmol/l for women). The IHD incidence was greater in a dose-response manner across increasing quartiles of nonfasting triglycerides for both sexes. The multivariate relative risk of CHD adjusting for coronary risk factors and time since last meal was 2.81 (95% CI, 1.56–5.05) for men and 2.76 (1.34–5.68) for women. The multivariate relative risk associated with 1 mmol/l greater triglycerides was 1.29 (1.09–1.53) for men and 1.42 (1.15–1.75) for women. The trend was similar for myocardial infarction, angina pectoris and sudden cardiac death. The relation of triglycerides with IHD was not influenced materially by total cholesterol levels or in a subsample analysis (51% of total sample) by HDL cholesterol levels. Nonfasting serum triglycerides predict the incidence of IHD among Japanese men and women, who possess low mean values of total cholesterol. [Copyright &y& Elsevier]

Background: Patients with chronic kidney disease (CKD) have a higher risk of atherosclerotic cardiovascular disease (ASCVD). Dyslipidemia has been established as a risk factor for ASCVD. In the present study, we aimed to determine the prevalence of dyslipidemia at each stage of CKD., Methods: We conducted a cross-sectional study among 4476 patients registered in the Fukuoka Kidney Disease Registry Study, a Japanese prospective cohort study in patients with non-dialysis-dependent CKD. Outcomes were the prevalence of hyper-low-density lipoprotein (LDL) cholesterolemia, hyper-non-high-density lipoprotein (non-HDL) cholesterolemia, hypertriglyceridemia, and hypo-high-density lipoprotein (hypo-HDL) cholesterolemia at each stage of CKD. We analyzed the relationships between CKD stage and the prevalence of dyslipidemia using logistic regression models., Results: Patients in the advanced stages of CKD were more likely to have hypertriglyceridemia [OR 2.16 (95% CI 1.03-4.56), OR 2.24 (95% CI 1.04-4.84), OR 2.62 (95% CI 1.19-5.78), and OR 2.47 (95% CI 1.04-5.88) for CKD stages G3a, G3b, G4, and G5, respectively] and hypo-HDL-cholesterolemia [OR 2.66 (95% CI 1.21-5.82), OR 3.10 (95% CI 1.38-6.95), OR 2.86 (95% CI 1.25-6.53), and OR 3.30 (95% CI 1.35-8.10) for CKD stages G3a, G3b, G4, and G5, respectively] as compared with patients in CKD stage G1. The prevalence of hyper-LDL-cholesterolemia and hyper-non-HDL-cholesterolemia was not related to CKD stage., Conclusion: Patients with advanced CKD stages are more likely to have hypertriglyceridemia and hypo-HDL-cholesterolemia than those in early stages. This type of lipid profile may represent a risk factor for ASCVD in patients with CKD.

Studies of biomarkers of lifestyle-related diseases in Japanese cohorts are scarce. This study aimed to analyze trends in risk markers of lifestyle-related diseases using age-period-cohort (APC) analysis. Data on systolic blood pressure and BMI from 1973 to 2018 and serum glucose, triglyceride, and high-density lipoprotein cholesterol levels from 1989 to 2018 available from the National Health and Nutrition Survey were used. Values for each of the risk markers for each age, period, and cohort were estimated using APC analysis. For women, a decrease in all the risk markers of lifestyle-related diseases was observed in individuals born between the 1930s and approximately 1970. Therefore, female individuals born in approximately 1970 were considered to have the lowest risk of developing lifestyle-related and cardiovascular diseases. Meanwhile, the cohort effect on all the risk markers deteriorated for the younger cohorts, and changes in lifestyle behavior are needed for cohorts born more recently. For men, the trends in risk markers across the cohorts differed, and the relative risk of lifestyle-related diseases for each cohort differed according to disease. These results could help understand cohort-specific risks for lifestyle-related disease and enable identification of high-risk populations who could benefit from preventive measures.

In Japan, Kombu (Laminaria japonica), which is a type of seaweed, is considered to be a foodstuff with health-promoting benefits, and Japanese people actively incorporate Kombu into their diets. Previously, we reported that the frequent intake of Kombu reduced the serum triglyceride levels of subjects with abnormally high serum triglyceride levels. In the current human study, we performed metabolomic analysis of serum lipids, and then the molecular species profiles of phosphatidylcholines (PC), phosphatidylethanolamines (PE), lysophosphatidylcholines (LPC), lysophosphatidylethanolamines (LPE), and free fatty acids (FFA) were evaluated. As a result, it was found that there were no marked differences between the lipid profiles obtained before and after the intake of Kombu for 4 wk in all subjects. In the subjects with abnormal serum triglyceride levels, the intake of Kombu improved the subjects' molecular species profiles in terms of their serum levels of the diacyl and acyl forms of PC, PE, LPC, and LPE, and FFA. Furthermore, the intake of Kombu also tended to increase the serum levels of both the plasmanyl and plasmenyl forms of PC and PE in these subjects. The lipid alterations observed in our study might be related to the functionality of Kombu. Furthermore, it is important to evaluate the quality of lipids as well as the quantity of lipids in various types of research, including food functionality studies.

Hypertriglyceridemia has emerged as an independent risk factor for cardiovascular events, despite low-density lipoprotein-cholesterol (LDL-C) well-controlled with statins. We pooled data from the first 12 weeks of six randomized double-blind placebo-controlled studies of pemafibrate in Japan and investigated its efficacy and safety with and without statins, particularly focusing on patients with renal dysfunction. Subjects were 1253 patients (677 in the "with-statin" group and 576 in the "without-statin" group). At Week 12 (last observation carried forward), triglyceride (TG) was significantly reduced at all pemafibrate doses (0.1, 0.2, and 0.4 mg/day), both with and without statin, compared to placebo (p < 0.001 vs. placebo for all groups). In the "with-statin" group, the estimated percent change from baseline was −2.0% for placebo and −45.1%, −48.5%, and −50.0%, respectively, for the pemafibrate groups. Findings for both groups showed significant decreases in TG-rich lipoproteins and atherogenic lipid parameters compared to placebo. The incidence of adverse events was similar between the pemafibrate and placebo groups and was also similar for patients with and without renal dysfunction in the "with-statin" group. Pemafibrate lowered TG and improved atherogenic dyslipidemia without a significant increase in adverse events in comparison to the placebo, even among "with-statin" patients who had renal dysfunction. [ABSTRACT FROM AUTHOR]

Olive leaves are rich in oleuropein, which has been shown to have beneficial effects on dyslipidemia, type 2 diabetes, and obesity. However, we previously found no significant health benefits of olive leaf tea (OLT) on nonobese and nondiabetic individuals. Thus, we performed this study to further explore the health benefits of OLT in individuals with prediabetes and compare the health benefits between low-concentration OLT (LOLT) and OLT. We hypothesized that OLT will have a more pronounced effect on abdominal obesity as well as glucose and lipid metabolism in prediabetic individuals. Individuals between 40 and 70 years of age with a body mass index of 23.0-29.9 kg/m 2 and prediabetes status were recruited and randomly assigned to the OLT or the LOLT group. The intervention, which was the consumption of 330 mL of the test beverage 3 times daily during mealtime, lasted for 12 weeks. After the intervention, serum levels of log-transformed triglycerides (P < .05) and low-density lipoprotein cholesterol (P < .01) decreased significantly in the OLT group (n = 28), with the reductions higher in the OLT group than those in the LOLT group (n = 29, log-transformed triglycerides: P = .079, low-density lipoprotein cholesterol: P < .05). Whereas body weight, waist circumference, and insulin levels were not significantly changed in both groups, fasting plasma glucose levels in the OLT group were significantly decreased compared to those in the LOLT group (P < .05). In conclusion, although the effect of OLT on abdominal obesity and glucose metabolism remains unclear, OLT has been found to have lipid-lowering effects., (Copyright © 2019 Elsevier Inc. All rights reserved.)

Recent genome-wide association studies have identified various dyslipidemia-related genetic variants. However, most studies were conducted in a cross-sectional manner. We thus performed longitudinal exome-wide association studies of dyslipidemia in a Japanese population. We used ~244,000 genetic variants and clinical data of 6022 Japanese individuals who had undergone annual health checkups for several years. After quality control, the association of dyslipidemia-related phenotypes with 24,691 single nucleotide polymorphisms (SNPs) was tested using the generalized estimating equation model. In total, 82 SNPs were significantly (P < 2.03 × 10 -6 ) associated with dyslipidemia phenotypes. Of these SNPs, four (rs74416240 of TCHP, rs925368 of GIT2, rs7969300 of ATXN2, and rs12231744 of NAA25) and two (rs34902660 of SLC17A3 and rs1042127 of CDSN) were identified as novel genetic determinants of hypo-HDL- and hyper-LDL-cholesterolemia, respectively. A replication study using the cross-sectional data of 8310 Japanese individuals showed the association of the six identified SNPs with dyslipidemia-related traits., (Copyright © 2018 The Authors. Published by Elsevier Inc. All rights reserved.)

A prospective study was performed in the Reproduction Center of Ichikawa General Hospital (Chiba, Japan) to assess the relationship between dyslipidaemia and sperm quality and serum hormone levels in male patients in Japan. The semen parameters and blood samples were assessed in relation to several variables, including body mass index (BMI) and serum triglyceride (TG) levels. Between 2011 and 2012, 167 male partners of infertile couples aged 22-46 years (mean: 36.5 years) were referred to the reproduction centre. In total, 66 patients (39.5%) had hypertriglyceridaemia (TG level ≥ 150 mg dl(-1) ). There was no significant relationship between serum TG levels and sperm concentration or motility; however, the serum TG level was positively associated with the sperm morphological traits. Furthermore, the serum levels of glutamic oxaloacetic transaminase and glutamic pyruvic transaminase were associated with the serum TG levels. By contrast, a negative relationship between serum testosterone and TG levels was discovered., (© 2012 Blackwell Verlag GmbH.)