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Deza S, Colina I, Beloqui O, Monreal JI, Martínez-Chávez E, Maroto-García J, Mugueta C, González A, Varo N. Evaluation of measured and calculated small dense low-density lipoprotein in capillary blood and association with the metabolic syndrome. Clin Chim Acta 2024; 557:117897. [PMID: 38570026 DOI: 10.1016/j.cca.2024.117897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 03/31/2024] [Accepted: 03/31/2024] [Indexed: 04/05/2024]
Abstract
BACKGROUND AND AIMS Small-dense-low-density-lipoprotein cholesterol (sdLDL-C) is proatherogenic and not commonly measured. The aims were to evaluate capillary blood and its stability for sdLDL-C measurement and measure sdLDL-C in patients with metabolic syndrome (MS). METHODS 182 patients were studied (49 with MS). sdLDL-C was measured by electrophoresis (LipoPrint®), direct measurement (Roche Diagnostics) and Sampson equation. Intima-media thickness (IMT) and presence of atheroma was evaluated. sdLDL-C was compared in paired venous and capillary blood according to CLSI-EP09c (n = 40). sdLDL-C stability was studied after 24 h at room temperature (RT). RESULTS sdLDL-C in capillary blood and venous blood showed agreement with the direct measurement (bias: 4.17 mg/dL, LOA 95 %:-5.66; 13.99) and estimation (bias:8.12 mg/dL, LOA 95 %:-8.59; 24.82). sdLDL-C is stable in capillary blood for 24 h at RT. The electrophoretic method yielded lower (p < 0.05) sdLDL-C than the equation or direct measurement. Patients with MS had (p < 0.05) higher sdLDL-C (%) than patients without MS. Patients with atheroma plaques had higher sdLDL-C (p < 0.05). Estimated sdLDL-C correlated with IMT (r = 0.259, p < 0.001). CONCLUSIONS Capillary blood is an alternative to venous blood for sdLDL-C measurement and is stable for 24 h after collection. Estimated and directly measured sdLDL-C associate with the MS being accessible tools for cardiovascular risk assessment.
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Affiliation(s)
- Sara Deza
- Clinical Biochemistry Department, Clínica Universidad de Navarra, 31008 Pamplona, Spain
| | - Inmaculada Colina
- Internal Medicine Department, Clínica Universidad de Navarra, 31008 Pamplona, Spain
| | - Oscar Beloqui
- Internal Medicine Department, Clínica Universidad de Navarra, 31008 Pamplona, Spain
| | - José Ignacio Monreal
- Clinical Biochemistry Department, Clínica Universidad de Navarra, 31008 Pamplona, Spain
| | | | - Julia Maroto-García
- Clinical Biochemistry Department, Clínica Universidad de Navarra, 31008 Pamplona, Spain
| | - Carmen Mugueta
- Clinical Biochemistry Department, Clínica Universidad de Navarra, 31008 Pamplona, Spain
| | - Alvaro González
- Clinical Biochemistry Department, Clínica Universidad de Navarra, 31008 Pamplona, Spain
| | - Nerea Varo
- Clinical Biochemistry Department, Clínica Universidad de Navarra, 31008 Pamplona, Spain.
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Hirano T, Satoh N, Ito Y. Specific Increase in Small Dense Low-Density Lipoprotein-Cholesterol Levels beyond Triglycerides in Patients with Diabetes: Implications for Cardiovascular Risk of MAFLD. J Atheroscler Thromb 2024; 31:36-47. [PMID: 37438123 PMCID: PMC10776337 DOI: 10.5551/jat.64271] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/01/2023] [Indexed: 07/14/2023] Open
Abstract
AIMS Small dense (sd) low-density lipoprotein (LDL)-cholesterol (C) is the most powerful predictor of cardiovascular (CV) disease among lipid biomarkers and is generated by hypertriglyceridemia and insulin resistance. Metabolic dysfunction-associated fatty liver disease (MAFLD) is a newly proposed liver disease with a high CV risk. We investigated the specific association of sdLDL-C with MAFLD beyond triglycerides (TG) and obesityMethods: Participants were 839 non-alcoholic drinkers with type 2 diabetes enrolled in a regional diabetes cohort. Fatty liver (FL) and visceral fat area (VFA) was detected by computed tomography scan. sdLDL-C and LDL-TG were measured by our established homogeneous assay. TG rich lipoprotein (TRL) was calculated by subtracting LDL-C plus HDL-C from total-C. Grade of sdLDL-C (≤ 24, 25-34, 35-44, and ≥ 45 mg/dL) was classified according to the Hisayama study. RESULTS Compared to non-FL counterparts, FL subjects were younger, predominantly male and smokers; and had higher body mass index (BMI), VFA, hemoglobin A1c, C-peptide, TG, and sdLDL-C, while had similar levels of LDL-C, LDL-TG, and TRL-C. Multivariate logistic analysis revealed that sdLDL-C was the most powerful lipid parameter for identifying FL, independent of TG, HDL-C, BMI, and VFA. The independent association between TG and FL was lost when sdLDL-C was added to the analysis. These results remained the same when lipid-lowering drug users were excluded. After adjustment for confounders, the odds ratio for FL was 2.4-2.7 at sdLDL ≥ 35 mg/dL based on sdLDL ≤ 24 mg/dL. CONCLUSIONS sdLDL-C levels are specifically elevated in patients with diabetes and MAFLD, independent of TG and VFA, suggesting liver-centered metabolic abnormalities.
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Affiliation(s)
| | - Noriyuki Satoh
- Clinical Diagnostics Development Department, Denka Co., Ltd, Tokyo, Japan
| | - Yasuki Ito
- Clinical Diagnostics Development Department, Denka Co., Ltd, Tokyo, Japan
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Association between perfluoroalkyl substances exposure and the prevalence of nonalcoholic fatty liver disease in the different sexes: a study from the National Health and Nutrition Examination Survey 2005-2018. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:44292-44303. [PMID: 36692718 DOI: 10.1007/s11356-023-25258-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 01/07/2023] [Indexed: 01/25/2023]
Abstract
There is evidence that perfluoroalkyl substances (PFASs) have effects on liver toxicity, and the effects may exhibit sex differences. Our study aims to explore the association between exposure to four PFASs (perfluorooctanoic acid, PFOA; perfluorooctane sulfonate, PFOS; perfluorohexane sulfonate, PFHxS; and perfluorononanoate, PFNA) and the risk of nonalcoholic fatty liver disease (NAFLD) in adults ≥ 20 years old in the US population. The data were based on the National Health and Nutrition Examination Survey (NHANES) 2005-2018. We used Poisson regression to explore the association between the four PFASs and NAFLD. We included 3464 participants; of these, 1200 (34.64%) individuals were defined as having NAFLD, and the prevalence of NAFLD was 39.52% in men and 30.40% in women. After Poisson regression, among the premenopausal and postmenopausal and total women, PFOA had a significantly positive association with NAFLD (p < 0.05). After principal component analysis, the "composite PFAS" was associated with NAFLD in postmenopausal and total women, and the RRs (95% CIs) were 1.306 (1.075, 1.586) and 1.161 (1.007, 1.339), respectively. In adults, we found that PFASs were associated with NAFLD, and the associations varied by sex, particularly for PFOA and PFNA, which had a positive association with NAFLD in women.
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4
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Young Kim S, Mun S, Yu JH, Jin YJ, Ju Suh Y, Cho SH, Lee JW. Association between small dense LDL levels and hepatic fibrosis in patients with nonalcoholic fatty liver disease. Medicine (Baltimore) 2022; 101:e30527. [PMID: 36123875 PMCID: PMC9478249 DOI: 10.1097/md.0000000000030527] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
While patients with nonalcoholic fatty liver disease (NAFLD) continue to increase worldwide, few hematological biomarkers are helpful. This study examined the potential of small dense low density lipoprotein (sdLDL) as a noninvasive biomarker for NAFLD and investigated the relevance of liver fibrosis. One hundred seventy two patients were enrolled: 121 NAFLD patients and 51 healthy controls. The lipoprotein profiles of NAFLD patients and controls were analyzed, and transient elastography (Fibroscan®) was performed to evaluate the degree of NAFLD. The liver biopsy results in some NAFLD patients were also analyzed. Age-gender matching was performed among the 172 patients, and a comparison with 46 NAFLD patients with the control group confirmed that the sdLDL (P < .001) is significantly higher in the NAFLD group. A liver fibrosis test performed on 121 NAFLD patients confirmed a positive correlation between the degree of hepatic fibrosis and the sdLDL/LDL ratio (R = 0.215, P = .017). The area under the curve of the sdLDL for the diagnosis of NAFLD was 0.734 (95% CI, 0.631-0.838), and the area under the curve of the sdLDL/LDL ratio was 0.730 (95% CI, 0.621-0.829). The sdLDL and NAFLD activity scores of the 11 NAFLD patients who underwent liver biopsy showed a positive correlation, but it was not statistically significant. The sdLDL was higher in NAFLD patients than in controls and showed a tendency to increase gradually with increasing degree of hepatic steatosis and fibrosis. In particular, the sdLDL/LDL ratio showed a significant correlation with the degree of hepatic fibrosis, and the sdLDL measurement could be useful in NAFLD patients.
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Affiliation(s)
- Sun Young Kim
- Department of Internal Medicine, Inha University Hospital, Inha University School of Medicine, Incheon, Korea
| | - Subin Mun
- Digestive Disease Center, Department of Internal Medicine, Inha University School of Medicine, Incheon, Korea
| | - Jung Hwan Yu
- Department of Internal Medicine, Inha University Hospital, Inha University School of Medicine, Incheon, Korea
- *Correspondence: Jung Hwan Yu, Department of Internal Medicine and Division of GI and Liver Diseases, Inha University Hospital, Inha University School of Medicine, Inha University, Incheon 22332, Korea (e-mail: )
| | - Young-Joo Jin
- Department of Internal Medicine, Inha University Hospital, Inha University School of Medicine, Incheon, Korea
| | - Young Ju Suh
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, Korea
| | - Sang-Heon Cho
- Department of Clinical Pharmacology, Inha University Hospital, Inha University School of Medicine, Incheon, Korea
| | - Jin-Woo Lee
- Department of Internal Medicine, Inha University Hospital, Inha University School of Medicine, Incheon, Korea
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Atherogenic Plasma Index or Non-High-Density Lipoproteins as Markers Best Reflecting Age-Related High Concentrations of Small Dense Low-Density Lipoproteins. Int J Mol Sci 2022; 23:ijms23095089. [PMID: 35563477 PMCID: PMC9102874 DOI: 10.3390/ijms23095089] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/19/2022] [Accepted: 04/29/2022] [Indexed: 02/07/2023] Open
Abstract
The study aimed to assess the strength of the relationships between small dense low-density lipoproteins (sdLDL) and other parameters describing metabolic disorders and determine which of the lipid profile parameters can be used as markers of increased sdLDL concentration. The proposed model of sdLDL (examined by heparin−magnesium precipitation method) as a function of lipid parameters and atherogenic plasma indexes non-high-dense lipoproteins (non-HDL) and total cholesterol to high-dense lipoprotein ratio (TC/HDL), Atherogenic plasma index (API) is based on data from 485 participants divided into two age groups, <35≥ years. In multiple linear regression, sdLDL concentration was associated with the concentration of non-HDL-C (p = 0.043) and API value (p < 0.001) in participants <35 years, and with non-HDL-C (p < 0.001) and triglycerides (p = 0.020) concentration ≥35 years. The presence of abnormal values of API in participants <35 years and non-HDL-C in participants ≥35 years is a significant factor increasing the chances of the highest sdLDL (≥1.03 mmol/L) corresponding to Q4 in people without metabolic disorders. Different lipid parameters and atherogenicity indexes are associated with a high concentration of sdLDL depending on the age group. Abnormal API <35 years and non-HDL ≥35 years are associated with the highest sdLDL values and may be an indication for further specialist diagnosis of cardiovascular disease risk factors.
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Zhang S, Cheng S, He X, Wang W, Yun K, Man D, Ding H, Li P, Chu Z, Yang X, Shang H, Han X. Remnant Lipoprotein Cholesterol as a Factor Related to Adult Fatty Liver Disease. J Clin Endocrinol Metab 2022; 107:e1598-e1609. [PMID: 34875070 DOI: 10.1210/clinem/dgab825] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Indexed: 12/25/2022]
Abstract
CONTEXT Dyslipidemia is related to fatty liver disease (FLD), whose relationship with remnant lipoprotein cholesterol (RLP-C), a component of blood lipids, remains unclear. OBJECTIVE To clarify the correlation between RLP-C and the occurrence and severity of FLD and establish an FLD discriminant model based on health check indicators. METHODS Retrospective study of participants who underwent health check-up in the First Affiliated Hospital of China Medical University (Shenyang, China) between January and December 2019. We categorized participants according to liver ultrasound results and analyzed the correlation between RLP-C and occurrence of FLD (n = 38 885) through logistic regression, restricted cubic spline, and receiver operating characteristic curve. We categorized the severity of FLD according to the control attenuation parameter and analyzed the correlation between RLP-C and FLD severity through multiple logistic regression; only males were included (n = 564). RESULTS The adjusted OR (aOR) per SD between RLP-C and FLD was 2.33 (95% CI 2.21-2.46, P < .001), indicating a dose-response relationship (P < .0001). The optimal cut-off value of RLP-C was 0.45 mmol/L and the area under the curve (AUC) was 0.79. The AUC of the 8-variable model was 0.89 in both the training and the validation sets. FLD severity was related to the level of RLP-C (aOR per SD = 1.29, 95% CI 1.07-1.55, P = .008). CONCLUSION RLP-C has a strong positive correlation with FLD occurrence and FLD severity. These results may help clinicians identify and implement interventions in individuals with high FLD risk and reduce FLD prevalence.
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Affiliation(s)
- Shuang Zhang
- National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
- Department of Laboratory Medicine, the First Affiliated Hospital of China Medical University, Shenyang, China
- Units of Medical Laboratory, Chinese Academy of Medical Sciences, Shenyang, China
- NHC Key Laboratory of AIDS Immunology (China Medical University), Shenyang, China
| | - Shitong Cheng
- Department of Laboratory Medicine, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xue He
- Department of Laboratory Medicine, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Wei Wang
- Medical examination center, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Ke Yun
- National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
- NHC Key Laboratory of AIDS Immunology (China Medical University), Shenyang, China
| | - Dongliang Man
- Department of Laboratory Medicine, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Haibo Ding
- National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
- Units of Medical Laboratory, Chinese Academy of Medical Sciences, Shenyang, China
- NHC Key Laboratory of AIDS Immunology (China Medical University), Shenyang, China
| | - Ping Li
- Department of ultrasound, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Zhenxing Chu
- National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
- Units of Medical Laboratory, Chinese Academy of Medical Sciences, Shenyang, China
- NHC Key Laboratory of AIDS Immunology (China Medical University), Shenyang, China
| | - Xiaotao Yang
- National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Hong Shang
- National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
- Department of Laboratory Medicine, the First Affiliated Hospital of China Medical University, Shenyang, China
- Units of Medical Laboratory, Chinese Academy of Medical Sciences, Shenyang, China
- NHC Key Laboratory of AIDS Immunology (China Medical University), Shenyang, China
| | - Xiaoxu Han
- National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
- Department of Laboratory Medicine, the First Affiliated Hospital of China Medical University, Shenyang, China
- Units of Medical Laboratory, Chinese Academy of Medical Sciences, Shenyang, China
- NHC Key Laboratory of AIDS Immunology (China Medical University), Shenyang, China
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7
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Nakamura M, Yamamoto Y, Imaoka W, Kuroshima T, Toragai R, Ito Y, Yoshida H, Ai M. Reference interval for serum concentration of small dense low-density lipoprotein cholesterol in the healthy Japanese population. Ann Clin Biochem 2022; 59:242-252. [PMID: 35023370 DOI: 10.1177/00045632211066334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Small dense low-density lipoprotein a smaller and denser subfraction among whole low density lipoprotein particles is known to be highly atherogenic. The reference interval (RI) is not strictly defined for serum concentration of sdLDL-cholesterol (sdLDL-C) in Japan. The purpose of this study is to set the reference interval for sdLDL-C in healthy subjects. METHODS The population of this cross-sectional study was consisted of 40,862 individuals who had annual health checkups, and healthy subjects were extracted based on exclusion criteria such as medical history, social history, and blood sampling test results. Their serum sdLDL-C values were statistically analyzed and the RIs were set in men, premenopausal women, and postmenopausal women separately. RESULTS The mean values of serum sdLDL-C in healthy subjects were 23.9 mg/dL in men, 20.0 mg/dL in premenopausal women and 23.7 mg/dL in postmenopausal women, and the RIs were 12.6-45.3 mg/dL in men, 11.4-35.1 mg/dL in premenopausal women and 14.6-38.6 mg/dL in postmenopausal women. Serum sdLDL-C values were significantly higher in men than in women. Besides, sdLDL-C values were significantly higher in postmenopausal women than in premenopausal women. In both genders, sdLDL-C values tended to increase with age. CONCLUSION These results suggest that the RIs for sdLDL-C are recommended as follows: 13-45 mg/dL in men, 11-35 mg/dL in premenopausal women, and 15-39 mg/dL in postmenopausal women, respectively. Aside from these RIs, it is also necessary to define clinical cutoff values graded according to individual risk levels for atherosclerotic cardiovascular diseases.
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Affiliation(s)
- Marie Nakamura
- Department of Insured Medical Care Management, Graduate School of Medical and Dental Science, 92190Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yasushi Yamamoto
- Kansai Occupational Health Association, 84047ACTY Health Evaluation Center, Osaka, Japan
| | - Wataru Imaoka
- Kansai Occupational Health Association, 84047ACTY Health Evaluation Center, Osaka, Japan
| | - Toshio Kuroshima
- Kansai Occupational Health Association, 26799Senri LC Health Evaluation Center, Osaka, Japan
| | - Ryoko Toragai
- Kansai Occupational Health Association, 26799Senri LC Health Evaluation Center, Osaka, Japan
| | - Yasuki Ito
- Vaccine & Diagnostics R&D Department, Denka Co., Ltd, Niigata, Japan
| | - Hiroshi Yoshida
- Department of Laboratory Medicine, Tokyo Jikei University Kashiwa Hospital, Chiba, Japan
| | - Masumi Ai
- Department of Insured Medical Care Management, Graduate School of Medical and Dental Science, 92190Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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Chen S, Luan H, He J, Wang Y, Liu S, Li Y, Zeng X, Yuan H. Serum concentrations of small dense low-density lipoprotein cholesterol and lipoprotein(a) are related to coronary arteriostenosis in Takayasu arteritis. J Clin Lab Anal 2021; 35:e23966. [PMID: 34709671 PMCID: PMC8649385 DOI: 10.1002/jcla.23966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/30/2021] [Accepted: 08/07/2021] [Indexed: 12/29/2022] Open
Abstract
Background Serum small dense low‐density lipoprotein cholesterol (sdLDL‐C) and lipoprotein(a) [Lp(a)] levels are related to coronary disease, but their specific associations with coronary arteriostenosis in Takayasu arteritis (TA) have not been ascertained. This study explored the correlations between serum sdLDL‐C and Lp(a) levels and coronary arteriostenosis in TA patients as well as the degree of artery stenosis. Methods This retrospective study included 190 TA patients and 154 healthy subjects. TA patients were divided into three categories based on the degree of coronary stenosis: Group I, stenosis >50%; Group II, stenosis 1%–50%; and Group III, stenosis 0%. Independent risk factors for coronary arteriostenosis in TA were identified by logistic regression, followed by receiver operating characteristic curve analysis to determine the specificity and sensitivity of risk factors and Youden's Index score calculation to determine the cutoff points. Results Takayasu arteritis patients had significantly higher serum levels of sdLDL‐C and Lp(a) than healthy controls (p < 0.0001). The total cholesterol, triglyceride, LDL‐C, sdLDL‐C, and Lp(a) levels and the sdLDL‐C/LDL‐C ratio in Group I were significantly higher than those in Groups II and III (p < 0.05). An elevated serum sdLDL‐C level elevated the risk of coronary arteriostenosis by 5‐fold (cutoff value, 0.605 mmol/l). An increased serum Lp(a) level increased the risk of coronary arteriostenosis by 3.9‐fold (cutoff value, 0.045 g/l). An elevated sdLDL‐C/LDL‐C ratio increased the risk of coronary arteriostenosis by 2.1‐fold (cutoff value, 0.258). Conclusions Serum sdLDL‐C and Lp(a) levels and sdLDL‐C/LDL‐C ratio may be used as diagnostic factors for coronary arteriostenosis in TA patients.
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Affiliation(s)
- Si Chen
- Department of Clinical Laboratory, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Haixia Luan
- Department of Clinical Laboratory, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jianxun He
- Department of Clinical Laboratory, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yan Wang
- Department of Clinical Laboratory, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Shuang Liu
- Department of Clinical Laboratory, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yongzhe Li
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China
| | - Xiaoli Zeng
- Department of Clinical Laboratory, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Hui Yuan
- Department of Clinical Laboratory, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
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9
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Tonouchi R, Okada T, Abe Y, Kazama M, Kuromori Y, Yoshino Y, Iwata F, Hara M, Saito E, Morioka I. Subclass distribution of low-density lipoprotein triglyceride and the clustering of metabolic syndrome components in Japanese children. Pediatr Int 2021; 63:664-670. [PMID: 33020997 DOI: 10.1111/ped.14490] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 09/08/2020] [Accepted: 09/18/2020] [Indexed: 01/15/2023]
Abstract
BACKGROUND Recent studies demonstrated that low-density lipoprotein-tryglyceride (LDL-TG) may represent another marker of cardiovascular risks. We therefore measured LDL-TG including the low-density lipoprotein (LDL) subclass distribution and investigated the association between LDL-TG subclass profile and the clustering of metabolic syndrome (MetS) components and insulin resistance in Japanese children. METHODS The study included 237 schoolchildren (boys 115, girls 122). Four subclasses of low-density lipoprotein-tryglyceride (large, medium, small, and very small) was quantified using high-performance liquid chromatography. Total LDL-TG and TG levels in LDL subclasses were evaluated among four MetS component groups; non-abdominal obesity, abdominal obesity, pre-MetS, and MetS. RESULTS Total LDL-TG (P = 0.0003, P = 0.0175) and triglyceride levels in LDL subclasses were significantly different among four MetS component groups (large: P = 0.0002, P = 0.0084; medium: P = 0.0009, P = 0.0491; small: P =0.0025, P = 0.0509; very small: P = 0.0808, P = 0.0228; boys and girls, respectively). Total LDL-TG (r = 0.411, P < 0.0001, r = 0.378. P < 0.0001) and triglyceride levels in LDL subclasses correlated positively with the homeostasis model of assessment ratio (large: r = 0.396, P < 0.0001, r = 0.346, P < 0.0001; medium: r = 0.274, P = 0.0030, r = 0.228, P = 0.0115; small: r = 0.342, P = 0.0002, r = 0.292, P = 0.0011; very small: r = 0.385, P < 0.0001, r = 0.426, P < 0.0001, boys and girls, respectively). CONCLUSIONS Subclass distribution of LDL-TG was significantly associated with the clustering of MetS components in both sexes, and insulin resistance is a significant determinant of LDL-TG in all LDL subclasses. Lipoprotein-tryglyceride subclass analysis, rather than LDL-C, may provide a precise evaluation for cardiovascular disease risks in children with MetS.
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Affiliation(s)
- Ryousuke Tonouchi
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Toyko, Japan
| | - Tomoo Okada
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Toyko, Japan.,Department of Nutrition and Life Sciences, Kanagawa Institute of Technology, Atsugi, Japan
| | - Yuriko Abe
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Toyko, Japan
| | - Minako Kazama
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Toyko, Japan
| | - Yuki Kuromori
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Toyko, Japan
| | - Yayoi Yoshino
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Toyko, Japan
| | | | - Mitsuhiko Hara
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Toyko, Japan.,Department of Health and Nutrition, Faculty of Contemporary Human Life Science, Tokyo Kasei Gakuin University, Toyko, Japan
| | - Emiko Saito
- Department of Health and Nutrition, Faculty of Contemporary Human Life Science, Tokyo Kasei Gakuin University, Toyko, Japan
| | - Ichiro Morioka
- Department of Pediatrics and Child Health, Nihon University School of Medicine, Toyko, Japan
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10
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Targher G, Corey KE, Byrne CD. NAFLD, and cardiovascular and cardiac diseases: Factors influencing risk, prediction and treatment. DIABETES & METABOLISM 2020; 47:101215. [PMID: 33296704 DOI: 10.1016/j.diabet.2020.101215] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 11/11/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIM Non-alcoholic fatty liver disease (NAFLD), affecting up to around 30% of the world's adult population, causes considerable liver-related and extrahepatic morbidity and mortality. Strong evidence indicates that NAFLD (especially its more severe forms) is associated with a greater risk of all-cause mortality, and the predominant cause of mortality in this patient population is cardiovascular disease (CVD). This narrative review aims to discuss the strong association between NAFLD and increased risk of cardiovascular, cardiac and arrhythmic complications. Also discussed are the putative mechanisms linking NAFLD to CVD and other cardiac/arrhythmic complications, with a brief summary of CVD risk prediction/stratification and management of the increased CVD risk observed in patients with NAFLD. RESULTS NAFLD is associated with an increased risk of CVD events and other cardiac complications (left ventricular hypertrophy, valvular calcification, certain arrhythmias) independently of traditional CVD risk factors. The magnitude of risk of CVD and other cardiac/arrhythmic complications parallels the severity of NAFLD (especially liver fibrosis severity). There are most likely multiple underlying mechanisms through which NAFLD may increase risk of CVD and cardiac/arrhythmic complications. Indeed, NAFLD exacerbates hepatic and systemic insulin resistance, promotes atherogenic dyslipidaemia, induces hypertension, and triggers synthesis of proatherogenic, procoagulant and proinflammatory mediators that may contribute to the development of CVD and other cardiac/arrhythmic complications. CONCLUSION Careful assessment of CVD risk is mandatory in patients with NAFLD for primary prevention of CVD, together with pharmacological treatment for coexisting CVD risk factors.
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Affiliation(s)
- Giovanni Targher
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, Verona, Italy.
| | - Kathleen E Corey
- Liver Center, Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Christopher D Byrne
- Nutrition and Metabolism, Faculty of Medicine, University of Southampton, UK; National Institute for Health Research Southampton Biomedical Research Centre, University Hospital Southampton, Southampton General Hospital, Tremona Road, Southampton, UK
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11
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Hwang HW, Yu JH, Jin YJ, Suh YJ, Lee JW. Correlation between the small dense LDL level and nonalcoholic fatty liver disease: Possibility of a new biomarker. Medicine (Baltimore) 2020; 99:e21162. [PMID: 32664153 PMCID: PMC7360208 DOI: 10.1097/md.0000000000021162] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Small dense low-density lipoprotein (sdLDL) is a distinct low-density lipoprotein (LDL) cholesterol subclass that has been reported to be associated with metabolic disease. On the other hand, the relationship between the sdLDL level and the nonalcoholic fatty liver disease (NAFLD) severity is unclear. In this study, the sdLDL level was measured in patients with NAFLD to assess its potential as a biomarker for evaluating NAFLD. One hundred and twenty-six patients diagnosed with NAFLD at a single referral hospital from January 2018 to August 2019 were enrolled. The lipoprotein profile was analyzed from a blood test of NAFLD patients, and transient elastography (TE, Fibroscan) was performed to evaluate the degree of NAFLD. Among the 126 patients, 83 patients that could confirm the lipoprotein profile and TE results were finally enrolled in the study. The controlled attenuation parameter (CAP) value obtained from TE did not show any correlation with the total cholesterol, LDL. But, the sdLDL level showed a significant positive correlation with the CAP value (r = 0.237, P = .031), and the sdLDL/LDL ratio also showed a significant positive correlation with the CAP value (r = 0.235, P = .032). The liver stiffness (LS) measured by TE and the sdLDL level were positively correlated in patients with NAFLD (rho = 0.217, P = .049). The sdLDL/LDL ratio also showed a significant positive correlation with the LS value (rho = 0.228, P = .038). In addition, the fatty liver index also showed a significant positive correlation with the sdLDL/LDL ratio (r = 0.448, P = .000). In this study, the sdLDL level measured by a blood test of NAFLD patients showed a positive correlation with the CAP value and LS, which indicate the degree of hepatic steatosis and fibrosis. These results suggest the possibility of the sdLDL level as a new biomarker of NAFLD, but further studies will be needed to support these results.
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Affiliation(s)
- Ha Won Hwang
- Department of Internal Medicine, Inha University Hospital, Inha University School of Medicine
| | - Jung Hwan Yu
- Department of Internal Medicine, Inha University Hospital, Inha University School of Medicine
| | - Young-Joo Jin
- Department of Internal Medicine, Inha University Hospital, Inha University School of Medicine
| | - Young Ju Suh
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, South Korea
| | - Jin-Woo Lee
- Department of Internal Medicine, Inha University Hospital, Inha University School of Medicine
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12
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Small dense low-density lipoprotein-cholesterol (sdLDL-C): Analysis, effects on cardiovascular endpoints and dietary strategies. Prog Cardiovasc Dis 2020; 63:503-509. [PMID: 32353373 DOI: 10.1016/j.pcad.2020.04.009] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 04/13/2020] [Indexed: 12/20/2022]
Abstract
Lipid profile screening is crucial for the prevention, evaluation and treatment of cardiovascular (CV) disease (CVD). Small dense low-density lipoprotein-cholesterol (sdLDL-C) is an emerging biomarker associated with CVD and several comorbidities. The aim of this literature review is to discuss the potential importance of sdLDL-C as a surrogate biomarker for managing CVD by explaining its pathophysiology and promising treatments. The current synthesis demonstrates the impact of sdLDL-C on CV ailments, which are related to arterial pathologies and dysregulated lipid profiles. Several drug classes used for the treatment of dyslipidemia decrease the sdLDL-C concentrations. For instance, statins, fibrates, ezetimibe, nicotinic acid, resin and orlistat are pharmacological sdLDL-C-lowering agents. Regarding nutritional strategies, simple carbohydrate types, such as fructose, are common in Western diets and should be reduced or avoided due to their potential in increasing synthesis of sdLDL-C subclasses. Dairy products, avocado, pistachios, soy-based diet (except for hydrogenated soybean oil) and corn oil seem to be suitable food choices for a therapeutic diet aiming to control sdLDL-C concentrations. However, thus far dietary supplementation with omega-3 fatty acids is unsubstantiated for decreasing sdLDL-C concentration. In conclusion, coupled with the traditional lipid profile, measurement or even the estimation of sdLDL-C as a routine screening should be encouraged, whereas more insights into the control of sdLDL-C are imperative. Appropriate clinical reference ranges for sdLDL-C are also needed.
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13
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Yang S, Kwak S, Lee JH, Kang S, Lee SP. Nonalcoholic fatty liver disease is an early predictor of metabolic diseases in a metabolically healthy population. PLoS One 2019; 14:e0224626. [PMID: 31682638 PMCID: PMC6827890 DOI: 10.1371/journal.pone.0224626] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 09/30/2019] [Indexed: 12/20/2022] Open
Abstract
Aims The relationship between nonalcoholic fatty liver disease and incident metabolic syndrome in metabolically healthy subjects is unknown. We aimed to investigate whether nonalcoholic fatty liver disease is a predictor of future metabolic syndrome in metabolically healthy subjects. Materials and methods Subjects who underwent health evaluation at least twice between 2009 and 2015 from the National Health Insurance Service-National Sample Cohort in South Korea were included. Patients without obesity who had no metabolic syndrome components were finally analyzed (n = 28,880). The definition of nonalcoholic fatty liver disease was based on both the hepatic steatosis and fatty liver indices. The incidence of metabolic syndrome, prediabetes/type 2 diabetes, hypertension, and dyslipidemia was compared between the subjects with and without nonalcoholic fatty liver disease. Results The presence of nonalcoholic fatty liver disease was associated with a higher risk of incident metabolic syndrome, prediabetes/type 2 diabetes, hypertension, and dyslipidemia in the entire cohort (metabolic syndrome: adjusted hazard ratio, 2.10; 95% confidence interval, 1.18–3.71; prediabetes/type 2 diabetes: adjusted hazard ratio, 1.42; 95% confidence interval, 1.06–1.90; hypertension: adjusted hazard ratio, 2.36; 95% confidence interval, 1.35–4.12; dyslipidemia: adjusted hazard ratio, 1.49; 95% confidence interval, 1.07–2.06). A similar finding was observed in the age-, sex-, smoking status-, and body mass index-based 1:5 propensity score-matched cohort of 1,092 subjects (metabolic syndrome: adjusted hazard ratio, 3.56; 95% confidence interval, 1.79–7.07; prediabetes/type 2 diabetes: adjusted hazard ratio, 1.97; 95% confidence interval, 1.04–3.73; hypertension: adjusted hazard ratio, 2.57; 95% confidence interval, 1.35–4.88; dyslipidemia: adjusted hazard ratio, 1.61; 95% confidence interval, 1.12–2.32). Conclusions Nonalcoholic fatty liver disease is an early predictor of metabolic dysfunction even in metabolically healthy populations.
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Affiliation(s)
- Seokhun Yang
- Division of Cardiology and Cardiovascular Institute, Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Soongu Kwak
- Division of Cardiology and Cardiovascular Institute, Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Jeong-Hoon Lee
- Division of Gastroenterology and Liver Research Institute, Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
- * E-mail: (JHL); (SK); (SPL)
| | - Shinae Kang
- Division of Endocrinology, Department of Internal Medicine, Yonsei University, Seoul, South Korea
- * E-mail: (JHL); (SK); (SPL)
| | - Seung-Pyo Lee
- Division of Cardiology and Cardiovascular Institute, Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
- * E-mail: (JHL); (SK); (SPL)
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14
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Marchisello S, Di Pino A, Scicali R, Urbano F, Piro S, Purrello F, Rabuazzo AM. Pathophysiological, Molecular and Therapeutic Issues of Nonalcoholic Fatty Liver Disease: An Overview. Int J Mol Sci 2019; 20:ijms20081948. [PMID: 31010049 PMCID: PMC6514656 DOI: 10.3390/ijms20081948] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 04/18/2019] [Accepted: 04/20/2019] [Indexed: 12/12/2022] Open
Abstract
Nonalcoholic Fatty Liver Disease (NAFLD) represents the leading cause of liver disease in developed countries but its diffusion is currently also emerging in Asian countries, in South America and in other developing countries. It is progressively becoming one of the main diseases responsible for hepatic insufficiency, hepatocarcinoma and the need for orthotopic liver transplantation. NAFLD is linked with metabolic syndrome in a close and bidirectional relationship. To date, NAFLD is a diagnosis of exclusion, and liver biopsy is the gold standard for diagnosis. NAFLD pathogenesis is complex and multifactorial, mainly involving genetic, metabolic and environmental factors. New concepts are constantly arising in the literature promising new diagnostic and therapeutic tools. One of the challenges will be to better characterize not only NAFLD development but overall NAFLD progression, in order to better identify NAFLD patients at higher risk of metabolic, cardiovascular and neoplastic complications. This review analyses NAFLD epidemiology and the different prevalence of the disease in distinct groups, particularly according to sex, age, body mass index, type 2 diabetes and dyslipidemia. Furthermore, the work expands on the pathophysiology of NAFLD, examining multiple-hit pathogenesis and the role of different factors in hepatic steatosis development and progression: genetics, metabolic factors and insulin resistance, diet, adipose tissue, gut microbiota, iron deposits, bile acids and circadian clock. In conclusion, the current available therapies for NAFLD will be discussed.
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Affiliation(s)
- Simona Marchisello
- Department of Clinical and Molecular Medicine, University of Catania, Catania 95100, Italy.
| | - Antonino Di Pino
- Department of Clinical and Molecular Medicine, University of Catania, Catania 95100, Italy.
| | - Roberto Scicali
- Department of Clinical and Molecular Medicine, University of Catania, Catania 95100, Italy.
| | - Francesca Urbano
- Department of Clinical and Molecular Medicine, University of Catania, Catania 95100, Italy.
| | - Salvatore Piro
- Department of Clinical and Molecular Medicine, University of Catania, Catania 95100, Italy.
| | - Francesco Purrello
- Department of Clinical and Molecular Medicine, University of Catania, Catania 95100, Italy.
| | - Agata Maria Rabuazzo
- Department of Clinical and Molecular Medicine, University of Catania, Catania 95100, Italy.
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15
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Masoud M, Kengne AP, Erasmus RT, Hon GM, Macharia M, Matsha TE. Measured Versus Calculated Small Dense LDL-Cholesterol and Cardiometabolic Traits in a South African Population. Indian J Clin Biochem 2018; 34:304-311. [PMID: 31391720 DOI: 10.1007/s12291-018-0748-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 03/14/2018] [Indexed: 10/17/2022]
Abstract
Small-dense low density lipoprotein (sdLDL) is increasingly viewed as a marker for evaluating atherogenic risk, however its clinical uptake is hampered by the cumbersomeness of available methods. Consequently, a number of alternative methods for the estimation of sdLDL have been developed and none have been tested in a population from Africa. We evaluated an equation to estimate sdLDL-C from classic lipid parameters in South Africans. This is a cross-sectional study involving 1550 participants in which direct measurement of sdLDL in 237 participants was performed using a homogeneous enzymatic assay. Their mean age (standard deviation, SD) was 54.2 (14.7) years. 156 (65.8%) were normotolerant, 29 (12.2%) prediabetes, 17 (7.2%) screen detected diabetes and 35 (14.8%) known diabetes. Measured sdLDL values ranged from 0.17 to 3.39 versus-1.85 to 2.52 mmol/L calculated sdLDL. There was a significant positive correlation between the two measurements with a Pearson correlation coefficient of 0.659 (95%CI: 0.581-0.726). In a regression model, the adjusted R2 was 0.440 after adding age, 0.441 after further adding gender, then 0.443 with dysglycemia and lastly 0.447 upon adding body mass index. With the exception of HDL-cholesterol levels that decreased across increasing quintiles of calculated sdLDL, our data showed significant correlations between sdLDL and cardiometabolic risk factors, all p values < 0.0001. In conclusion, this study has shown that calculated sdLDL can be efficiently used to approximate population levels of sdLDL; however the modest correlation indicate that at the individual level, it will poorly approximate true sdLDL levels, with possible implications for risk stratification.
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Affiliation(s)
- M Masoud
- 1Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, PO Box 1906, Bellville, Cape Town, 7530 South Africa
| | - A P Kengne
- 3Non-Communicable Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa.,4Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - R T Erasmus
- 2Division of Chemical Pathology, Faculty of Health Sciences, National Health Laboratory Service (NHLS), University of Stellenbosch, Cape Town, South Africa
| | - G M Hon
- 1Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, PO Box 1906, Bellville, Cape Town, 7530 South Africa
| | - M Macharia
- 2Division of Chemical Pathology, Faculty of Health Sciences, National Health Laboratory Service (NHLS), University of Stellenbosch, Cape Town, South Africa
| | - T E Matsha
- 1Department of Biomedical Sciences, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, PO Box 1906, Bellville, Cape Town, 7530 South Africa
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16
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Correlation between Cholesterol, Triglycerides, Calculated, and Measured Lipoproteins: Whether Calculated Small Density Lipoprotein Fraction Predicts Cardiovascular Risks. J Lipids 2017; 2017:7967380. [PMID: 29318047 PMCID: PMC5727838 DOI: 10.1155/2017/7967380] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 10/11/2017] [Accepted: 10/25/2017] [Indexed: 01/07/2023] Open
Abstract
Background Recent literature in lipidology has identified LDL-fractions to be more atherogenic. In this regard, small density LDL-cholesterol (sdLDLc) has been considered to possess more atherogenicity than other LDL-fractions like large buoyant LDL-cholesterol (lbLDLc). Recently, Srisawasdi et al. have developed a method for calculating sdLDLc and lbLDLc based upon a regression equation. Using that in developing world may provide us with a valuable tool for ASCVD risk prediction. Objective (1) To correlate directly measured and calculated lipid indices with insulin resistance, UACR, glycated hemoglobin, anthropometric indices, and blood pressure. (2) To evaluate these lipid parameters in subjects with or without metabolic syndrome, nephropathy, and hypertension and among various groups based upon glycated hemoglobin results. Design Cross-sectional study. Place and Duration of Study. From Jan 2016 to 15 April 2017. Subjects and Methods Finally enrolled subjects (male: 110, female: 122) were evaluated for differences in various lipid parameters, including measured LDL-cholesterol (mLDLc), HDLc and calculated LDL-cholesterol (cLDLc), non-HDLc, sdLDLC, lbLDLC, and their ratio among subjects with or without metabolic syndrome, nephropathy, glycation index, anthropometric indices, and hypertension. Results Significant but weak correlation was mainly observed between anthropometric indices, insulin resistance, blood pressure, and nephropathy for non-HDLc, sdLDLc, and sdLDLc/lbLDLc. Generally lipid indices were higher among subjects with metabolic syndrome [{sdLDLc: 0.92 + 0.33 versus 0.70 + 0.29 (p < 0.001)}, {sdLDLc/lbLDLc: 0.55 + 0.51 versus 0.40 + 0.38 (p = 0.010)}, {non-HDLc: 3,63 + 0.60 versus 3.36 + 0.65 (p = 0.002)}]. The fact that the sdLDLc levels provided were insignificant in Kruskall Wallis Test indicated a sharp increase in subjects with HbA1c > 7.0%. Subjects having nephropathy (UACR > 2.4 mg/g) had higher concentration of non-HDLc levels in comparison to sdLDLc [{non-HDLc: 3.68 + 0.59 versus 3.36 + 0.43} (p = 0.007), {sdLDLc: 0.83 + 0.27 versus 0.75 + 0.35 (p = NS)}]. Conclusion Lipid markers including cLDLc and mLDLc are less associated with traditional ASCVD markers than non-HDLc, sdLDLc, and sdLDLc/lbLDLc in predicting metabolic syndrome, nephropathy, glycation status, and hypertension.
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17
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Abstract
Abnormal lipids, sometimes referred to as diabetes dyslipidemia, is a common condition in patients with diabetes. With the increasing number of patients with abnormal lipids, especially those with type 2 diabetes, health care practitioners, including nurses, have to properly manage patients with diabetes as well as abnormal lipids. This article examines the pathophysiology of abnormal lipids, the management of abnormal lipids, and the lipid goals for patients with diabetes. Lastly, this article discusses pharmacologic and nonpharmacologic therapies and the role of primary care providers and nurses in the management of abnormal lipids.
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Affiliation(s)
- Ngozi D Mbue
- Health Sciences Research and Development Center for Innovations in Quality, Effectiveness and Safety, 152, 2002 Holcombe Boulevard, Houston, TX 77030, USA; Michael E. DeBakey Veterans Affairs Medical Center, 152, 2002 Holcombe Boulevard, Houston, TX 77030, USA; Baylor College of Medicine, Houston, TX, USA.
| | - John E Mbue
- Michael E. DeBakey Veterans Affairs Medical Center, 152, 2002 Holcombe Boulevard, Houston, TX 77030, USA
| | - Jane A Anderson
- Health Sciences Research and Development Center for Innovations in Quality, Effectiveness and Safety, 152, 2002 Holcombe Boulevard, Houston, TX 77030, USA; Michael E. DeBakey Veterans Affairs Medical Center, 152, 2002 Holcombe Boulevard, Houston, TX 77030, USA; Baylor College of Medicine, Houston, TX, USA
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18
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Fernández-Cidón B, Padró-Miquel A, Alía-Ramos P, Castro-Castro MJ, Fanlo-Maresma M, Dot-Bach D, Valero-Politi J, Pintó-Sala X, Candás-Estébanez B. Reference values assessment in a Mediterranean population for small dense low-density lipoprotein concentration isolated by an optimized precipitation method. Vasc Health Risk Manag 2017; 13:201-207. [PMID: 28652759 PMCID: PMC5472427 DOI: 10.2147/vhrm.s132475] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background High serum concentrations of small dense low-density lipoprotein cholesterol (sd-LDL-c) particles are associated with risk of cardiovascular disease (CVD). Their clinical application has been hindered as a consequence of the laborious current method used for their quantification. Objective Optimize a simple and fast precipitation method to isolate sd-LDL particles and establish a reference interval in a Mediterranean population. Materials and methods Forty-five serum samples were collected, and sd-LDL particles were isolated using a modified heparin-Mg2+ precipitation method. sd-LDL-c concentration was calculated by subtracting high-density lipoprotein cholesterol (HDL-c) from the total cholesterol measured in the supernatant. This method was compared with the reference method (ultracentrifugation). Reference values were estimated according to the Clinical and Laboratory Standards Institute and The International Federation of Clinical Chemistry and Laboratory Medicine recommendations. sd-LDL-c concentration was measured in serums from 79 subjects with no lipid metabolism abnormalities. Results The Passing–Bablok regression equation is y = 1.52 (0.72 to 1.73) + 0.07x (−0.1 to 0.13), demonstrating no significant statistical differences between the modified precipitation method and the ultracentrifugation reference method. Similarly, no differences were detected when considering only sd-LDL-c from dyslipidemic patients, since the modifications added to the precipitation method facilitated the proper sedimentation of triglycerides and other lipoproteins. The reference interval for sd-LDL-c concentration estimated in a Mediterranean population was 0.04–0.47 mmol/L. Conclusion An optimization of the heparin-Mg2+ precipitation method for sd-LDL particle isolation was performed, and reference intervals were established in a Spanish Mediterranean population. Measured values were equivalent to those obtained with the reference method, assuring its clinical application when tested in both normolipidemic and dyslipidemic subjects.
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Affiliation(s)
- Bárbara Fernández-Cidón
- Clinical Laboratory, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain.,Department of Biochemistry, Molecular Biology and Biomedicine, Autonomous University of Barcelona (UAB), Barcelona, Spain.,Department of Pharmacotherapy, Pharmacogenetics and Pharmaceutical Technology, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, Spain
| | - Ariadna Padró-Miquel
- Clinical Laboratory, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain
| | - Pedro Alía-Ramos
- Clinical Laboratory, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain
| | | | - Marta Fanlo-Maresma
- Cardiovascular Risk Unit, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain
| | - Dolors Dot-Bach
- Clinical Laboratory, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain
| | - José Valero-Politi
- Clinical Laboratory, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain
| | - Xavier Pintó-Sala
- Cardiovascular Risk Unit, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain
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Katsiki N, Mikhailidis DP, Mantzoros CS. Non-alcoholic fatty liver disease and dyslipidemia: An update. Metabolism 2016; 65:1109-23. [PMID: 27237577 DOI: 10.1016/j.metabol.2016.05.003] [Citation(s) in RCA: 373] [Impact Index Per Article: 46.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/02/2016] [Accepted: 05/05/2016] [Indexed: 11/21/2022]
Abstract
Non-alcoholic fatty liver (NAFLD) is the most common liver disease worldwide, progressing from simple steatosis to necroinflammation and fibrosis (leading to non-alcoholic steatohepatitis, NASH), and in some cases to cirrhosis and hepatocellular carcinoma. Inflammation, oxidative stress and insulin resistance are involved in NAFLD development and progression. NAFLD has been associated with several cardiovascular (CV) risk factors including obesity, dyslipidemia, hyperglycemia, hypertension and smoking. NAFLD is also characterized by atherogenic dyslipidemia, postprandial lipemia and high-density lipoprotein (HDL) dysfunction. Most importantly, NAFLD patients have an increased risk for both liver and CV disease (CVD) morbidity and mortality. In this narrative review, the associations between NAFLD, dyslipidemia and vascular disease in NAFLD patients are discussed. NAFLD treatment is also reviewed with a focus on lipid-lowering drugs. Finally, future perspectives in terms of both NAFLD diagnostic biomarkers and therapeutic targets are considered.
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Affiliation(s)
- Niki Katsiki
- Second Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippocration Hospital, Thessaloniki, Greece
| | - Dimitri P Mikhailidis
- Department of Clinical Biochemistry (Vascular Disease Prevention Clinics), Royal Free Hospital Campus, University College London Medical School, University College London (UCL), London, UK.
| | - Christos S Mantzoros
- Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
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20
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Aoki T, Yagi H, Sumino H, Tsunekawa K, Araki O, Kimura T, Nara M, Ogiwara T, Nakajima K, Murakami M. Relationship between carotid artery intima-media thickness and small dense low-density lipoprotein cholesterol concentrations measured by homogenous assay in Japanese subjects. Clin Chim Acta 2015; 442:110-4. [PMID: 25603407 DOI: 10.1016/j.cca.2015.01.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 12/26/2014] [Accepted: 01/14/2015] [Indexed: 12/30/2022]
Abstract
BACKGROUND Small dense low-density lipoprotein cholesterol (sdLDL-C) concentrations correlate more strongly with coronary heart disease than other LDL-C and large LDL particle concentrations. We investigated the association between carotid artery intima-media thickness (IMT) and sdLDL-C concentrations in Japanese subjects. METHODS Carotid artery IMT, blood pressure (BP), fasting plasma sdLDL-C, glucose metabolism, lipid, and C-reactive protein concentrations were measured in 97 native Japanese subjects. Carotid artery IMT was assessed by ultrasonography, and sdLDL-C concentrations were measured by a homogenous assay. Pearson's correlation coefficient analyses and multiple regression analyses were used to examine the relationships between carotid artery IMT values, sdLDL-C values, and other clinical variables. RESULTS After multiple regression analysis, including age, sex, body mass index, systolic BP, diastolic BP, fasting plasma glucose, HbA1c, estimated glomerular filtration rate (eGFR), total-C, high-density lipoprotein (HDL)-C, triglyceride, LDL-C, non-HDL-C, large buoyant LDL-C, and sdLDL-C, carotid artery IMT remained significantly associated with age, systolic BP, diastolic BP, and sdLDL-C, whereas sdLDL-C remained significantly associated with age, total-C, HDL-C, triglycerides, and carotid artery IMT. CONCLUSIONS When measured by a homogenous assay, carotid artery IMT may have a closer relationship with sdLDL-C concentrations than other lipid parameters in Japanese subjects. sdLDL-C may be a potentially useful risk marker when assessing carotid artery IMT in Japanese subjects.
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Affiliation(s)
- Tomoyuki Aoki
- Department of Clinical Laboratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Hideki Yagi
- Department of Clinical Laboratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Hiroyuki Sumino
- Department of Clinical Laboratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Katsuhiko Tsunekawa
- Department of Clinical Laboratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Osamu Araki
- Department of Clinical Laboratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Takao Kimura
- Department of Clinical Laboratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Makoto Nara
- Department of Clinical Laboratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Takayuki Ogiwara
- Department of Clinical Laboratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Katsuyuki Nakajima
- Department of Laboratory Sciences, Gunma University Graduate School of Health Sciences, Maebashi, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Masami Murakami
- Department of Clinical Laboratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma 371-8511, Japan.
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21
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Hodúlová M, Šedová L, Křenová D, Liška F, Krupková M, Kazdová L, Tremblay J, Hamet P, Křen V, Šeda O. Genomic determinants of triglyceride and cholesterol distribution into lipoprotein fractions in the rat. PLoS One 2014; 9:e109983. [PMID: 25296178 PMCID: PMC4190321 DOI: 10.1371/journal.pone.0109983] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Accepted: 09/05/2014] [Indexed: 11/18/2022] Open
Abstract
The plasma profile of major lipoprotein classes and its subdivision into particular fractions plays a crucial role in the pathogenesis of atherosclerosis and is a major predictor of coronary artery disease. Our aim was to identify genomic determinants of triglyceride and cholesterol distribution into lipoprotein fractions and lipoprotein particle sizes in the recombinant inbred rat set PXO, in which alleles of two rat models of the metabolic syndrome (SHR and PD inbred strains) segregate together with those from Brown Norway rat strain. Adult male rats of 15 PXO strains (n = 8–13/strain) and two progenitor strains SHR-Lx (n = 13) and BXH2/Cub (n = 18) were subjected to one-week of high-sucrose diet feeding. We performed association analyses of triglyceride (TG) and cholesterol (C) concentrations in 20 lipoprotein fractions and the size of major classes of lipoprotein particles utilizing 704 polymorphic microsatellite markers, the genome-wide significance was validated by 2,000 permutations per trait. Subsequent in silico focusing of the identified quantitative trait loci was completed using a map of over 20,000 single nucleotide polymorphisms. In most of the phenotypes we identified substantial gradient among the strains (e.g. VLDL-TG from 5.6 to 66.7 mg/dl). We have identified 14 loci (encompassing 1 to 65 genes) on rat chromosomes 3, 4, 7, 8, 11 and 12 showing suggestive or significant association to one or more of the studied traits. PXO strains carrying the SHR allele displayed significantly higher values of the linked traits except for LDL-TG and adiposity index. Cholesterol concentrations in large, medium and very small LDL particles were significantly associated to a haplotype block spanning part of a single gene, low density lipoprotein receptor-related protein 1B (Lrp1b). Using genome-wide association we have identified new genetic determinants of triglyceride and cholesterol distribution into lipoprotein fractions in the recombinant inbred panel of rat model strains.
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Affiliation(s)
- Miloslava Hodúlová
- Institute of Biology and Medical Genetics, the First Faculty of Medicine, Charles University and the General Teaching Hospital, Prague, Czech Republic
- Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Lucie Šedová
- Institute of Biology and Medical Genetics, the First Faculty of Medicine, Charles University and the General Teaching Hospital, Prague, Czech Republic
| | - Drahomíra Křenová
- Institute of Biology and Medical Genetics, the First Faculty of Medicine, Charles University and the General Teaching Hospital, Prague, Czech Republic
| | - František Liška
- Institute of Biology and Medical Genetics, the First Faculty of Medicine, Charles University and the General Teaching Hospital, Prague, Czech Republic
| | - Michaela Krupková
- Institute of Biology and Medical Genetics, the First Faculty of Medicine, Charles University and the General Teaching Hospital, Prague, Czech Republic
| | - Ludmila Kazdová
- Department of Metabolism and Diabetes, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Johanne Tremblay
- Centre de recherche, Centre hospitalier de l’Université de Montréal (CRCHUM) – Technôpole Angus, Montreal, Quebec, Canada
| | - Pavel Hamet
- Centre de recherche, Centre hospitalier de l’Université de Montréal (CRCHUM) – Technôpole Angus, Montreal, Quebec, Canada
| | - Vladimír Křen
- Institute of Biology and Medical Genetics, the First Faculty of Medicine, Charles University and the General Teaching Hospital, Prague, Czech Republic
| | - Ondřej Šeda
- Institute of Biology and Medical Genetics, the First Faculty of Medicine, Charles University and the General Teaching Hospital, Prague, Czech Republic
- Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
- * E-mail:
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