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Li J, Yang C, Zhang Y, Li Q, Liu X, Zhang Y, Zhao Y. Study of association of leptin with leukocyte telomere length in a Chinese rural population. Lipids Health Dis 2024; 23:103. [PMID: 38615017 PMCID: PMC11016218 DOI: 10.1186/s12944-024-02097-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 04/03/2024] [Indexed: 04/15/2024] Open
Abstract
BACKGROUND Previous studies have demonstrated the relationship between adipocyte factors, insulin resistance, and other indicators with telomere length. However, these studies did not consider the influence of changes in different indicators on telomere length over time. Therefore, the aim of this study is to elucidate the impact of changes in adipocyte factors, HOMA-IR, and other indicators on the dynamic variation of telomere length. METHODS The data were from a cohort study conducted in Ningxia, China. A total of 1624 subjects were analyzed. Adipokines and relative leukocyte telomere length (RLTL) were measured, and changes in Homeostatic Model Assessment for Insulin Resistance (HOMA-IR), Homeostatic Model Assessment for β-Cell Function (HOMA-β), and Quantitative Insulin Sensitivity Check Index (QUICKI) were calculated. Generalized linear models evaluated associations between changes in adipokines and RLTL changes. Furthermore, univariate analyses examined the effects of changes in adipokines and insulin resistance indicators on ΔRLTL. RESULTS The research findings indicate that females generally have shorter telomeres compared to males. In comparison to the low-level group of Δleptin (LEP), the high-level group of ΔLEP shows a negative correlation with ΔRLTL (B=-1.32, 95% CI (-2.38, -0.27)). Even after multivariable adjustments, this relationship persists (B=-1.31, 95% CI (-2.24, -0.23)). Further analysis reveals that after adjusting for ΔHOMA-IR, ΔHOMA-β, and ΔQUICKI, the high-level group of ΔLEP still exhibits a significant negative correlation with ΔRLTL (B=-1.37, 95% CI (-2.43, -0.31)). However, the interaction effects between ΔHOMA-IR, ΔHOMA-β, ΔQUICKI, and ΔLEP do not affect ΔRLTL. CONCLUSIONS Elevated levels of leptin were significantly correlated with shortened telomere length. This suggests that increased leptin levels may impact overall individual health by affecting telomere length, underscoring the importance of measures to reduce leptin levels to mitigate the onset and progression of related diseases.
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Affiliation(s)
- Juan Li
- Public Health School, Ningxia Medical University, Yinchuan, 750004, China
| | - Chan Yang
- School of Nursing, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Yadi Zhang
- Public Health School, Ningxia Medical University, Yinchuan, 750004, China
| | - Qingqing Li
- Public Health School, Ningxia Medical University, Yinchuan, 750004, China
| | - Xiaowei Liu
- Public Health School, Ningxia Medical University, Yinchuan, 750004, China
| | - Yuhong Zhang
- Public Health School, Ningxia Medical University, Yinchuan, 750004, China.
- NHC Key Laboratory of Metabolic Cardiovascular Diseases Research, Ningxia Medical University, Yinchuan, 750004, China.
- Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, Ningxia, China.
| | - Yi Zhao
- Public Health School, Ningxia Medical University, Yinchuan, 750004, China.
- NHC Key Laboratory of Metabolic Cardiovascular Diseases Research, Ningxia Medical University, Yinchuan, 750004, China.
- Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, Ningxia, China.
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Mostafa H, Gutierrez-Tordera L, Mateu-Fabregat J, Papandreou C, Bulló M. Dietary fat, telomere length and cognitive function: unravelling the complex relations. Curr Opin Lipidol 2024; 35:33-40. [PMID: 38018863 DOI: 10.1097/mol.0000000000000900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
PURPOSE OF REVIEW The review aims to explore the recent evidence on the associations between different dietary fat intake and cognitive function, and to understand the role of telomere length in this relationship. RECENT FINDINGS Clinical and preclinical studies included in this review suggest that dietary fat intake is associated with cognitive function and telomere length. High intake of saturated fats and trans fats, commonly found in ultra-processed foods, appears to have negative effects on cognitive function and telomere length, while other dietary fats, such as omega-3 polyunsaturated fatty acids and monounsaturated fatty acids are associated with improved cognitive performance and reduced telomere attrition. Controversial results related to omega-6 polyunsaturated fatty acids intake and its impact on cognitive function were found. Dietary fats may affect telomere length and cognition through oxidative stress, inflammation, and insulin resistance. SUMMARY The current review illustrated the relationship between dietary fat and cognitive function by focusing on the role of telomere length as a potential intermediator. More future studies are required, however, in order to develop targeted interventions aimed at preserving cognitive well-being throughout life.
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Affiliation(s)
- Hamza Mostafa
- Nutrition and Metabolic Health Research Group (NuMeH), Department of Biochemistry and Biotechnology, Rovira i Virgili University (URV)
- Institute of Health Pere Virgili (IISPV)
- Center of Environmental, Food and Toxicological Technology - TecnATox, Rovira i Virgili University
| | - Laia Gutierrez-Tordera
- Nutrition and Metabolic Health Research Group (NuMeH), Department of Biochemistry and Biotechnology, Rovira i Virgili University (URV)
- Institute of Health Pere Virgili (IISPV)
- Center of Environmental, Food and Toxicological Technology - TecnATox, Rovira i Virgili University
| | - Javier Mateu-Fabregat
- Nutrition and Metabolic Health Research Group (NuMeH), Department of Biochemistry and Biotechnology, Rovira i Virgili University (URV)
- Institute of Health Pere Virgili (IISPV)
- Center of Environmental, Food and Toxicological Technology - TecnATox, Rovira i Virgili University
| | - Christopher Papandreou
- Nutrition and Metabolic Health Research Group (NuMeH), Department of Biochemistry and Biotechnology, Rovira i Virgili University (URV)
- Institute of Health Pere Virgili (IISPV)
- Center of Environmental, Food and Toxicological Technology - TecnATox, Rovira i Virgili University
| | - Mònica Bulló
- Nutrition and Metabolic Health Research Group (NuMeH), Department of Biochemistry and Biotechnology, Rovira i Virgili University (URV)
- Institute of Health Pere Virgili (IISPV)
- Center of Environmental, Food and Toxicological Technology - TecnATox, Rovira i Virgili University
- CIBER Physiology of Obesity and Nutrition (CIBEROBN), Carlos III Health Institute, Madrid, Spain
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Qiu J, Chang Z, Wang K, Chen K, Wang Q, Zhang J, Li J, Yang C, Zhao Y, Zhang Y. The predictive accuracy of coronary heart disease risk prediction models in rural Northwestern China. Prev Med Rep 2023; 36:102503. [PMID: 38116288 PMCID: PMC10728432 DOI: 10.1016/j.pmedr.2023.102503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 12/21/2023] Open
Abstract
Cardiovascular risk models developed may have limitations when applied to rural Chinese. This study validated and compared the Framingham Risk Score (FRS) and Prediction for Atherosclerotic Cardiovascular Disease Risk in China (PAR) models in predicting 10-year risk of coronary heart disease (CHD) in a rural cohort in Ningxia, China from 2008 to 2019. The FRS and PAR models were validated by estimating predicted events, C index, calibration χ2 and plots. 1381 adults without CHD at baseline were followed up for 9.75 years on average. 168 CHD cases were observed. The FRS and PAR underestimated CHD events by 22 % and 46 % for the total population, while overestimated for males by 152 % and 78 %, respectively. The C index was slightly higher for PAR than FRS. Both models showed weak calibration with chi-square values above 20 (p < 0.001). Bland-Altman plots indicated FRS predicted higher CHD risk than PAR, lacking consistency. Overall, FRS and PAR demonstrated limited performance in predicting 10-year CHD risk in this rural population. PAR had slightly better discrimination than FRS, but require further improvement in calibration and individual risk estimation to suit the rural population in Northwest China.
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Affiliation(s)
- Jiangwei Qiu
- School of Public, Ningxia Medical University, Yinchuan, China
- NHC Key Laboratory of Metabolic Cardiovascular Diseases Research, Ningxia Medical University, Yinchuan, China
| | - Zhenqi Chang
- School of Public, Ningxia Medical University, Yinchuan, China
| | - Kai Wang
- School of Public, Ningxia Medical University, Yinchuan, China
- The Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, China
| | - Kexin Chen
- School of Public, Ningxia Medical University, Yinchuan, China
| | - Qingan Wang
- School of Public, Ningxia Medical University, Yinchuan, China
- The Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, China
| | - Jiaxing Zhang
- School of Public, Ningxia Medical University, Yinchuan, China
- The Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, China
| | - Juan Li
- School of Public, Ningxia Medical University, Yinchuan, China
| | - Chan Yang
- School of Public, Ningxia Medical University, Yinchuan, China
- Department of Community Nursing, School of Nursing, Ningxia Medical University, Yinchuan, China
| | - Yi Zhao
- School of Public, Ningxia Medical University, Yinchuan, China
- NHC Key Laboratory of Metabolic Cardiovascular Diseases Research, Ningxia Medical University, Yinchuan, China
- The Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, China
| | - Yuhong Zhang
- School of Public, Ningxia Medical University, Yinchuan, China
- NHC Key Laboratory of Metabolic Cardiovascular Diseases Research, Ningxia Medical University, Yinchuan, China
- The Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, China
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Liu X, Ma T, Yang C, Li J, Zhang Y, Zhao Y. Persistent dyslipidemia increases the longitudinal changes in telomere length. Lipids Health Dis 2023; 22:173. [PMID: 37853446 PMCID: PMC10585729 DOI: 10.1186/s12944-023-01938-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 10/09/2023] [Indexed: 10/20/2023] Open
Abstract
BACKGROUND AND AIMS Leukocyte telomere length (LTL) as a 'biological clock' of aging is closely related to human health, its association with an aging-related disease, dyslipidemia, has been less studied and mainly focused on cross-sectional investigations. METHODS Two rounds of information and blood collections were conducted on a cohort of 1624 individuals residing in rural Ningxia, located in northwest China, with an average time gap of 9.8 years. The relative telomere length (RTL) of peripheral blood leukocytes was assessed using real-time quantitative PCR. To investigate the association between dyslipidemia, blood lipid levels, and alterations in RTL, multiple linear regression and generalized linear models were employed. RESULTS After conducting the follow-up analysis, it was observed that 83.3% of the participants in the study exhibited a reduction in telomere length, while 16.7% experienced an increase in telomere length. The results suggested that dyslipidemia at baseline or follow-up may increase longitudinal changes in telomere length, but it was more significant in the healthy group, especially in those aged ≥ 60 years. Furthermore, HDL-C levels in baseline and follow-up were found to be associated with longitudinal changes in telomere length, and lower HDL-C levels may be associated with increased longitudinal changes in telomere length. CONCLUSIONS The change in telomere length is correlated with dyslipidemia and its lipid indicators especially HDL-C. Persistent dyslipidemia and a reduction in HDL-C levels may be associated with elevated longitudinal fluctuations in telomere length.
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Affiliation(s)
- Xiaowei Liu
- Public Health School, Ningxia Medical University, Yinchuan, 750004, China
| | - Tao Ma
- Public Health School, Ningxia Medical University, Yinchuan, 750004, China
| | - Chan Yang
- School of Nursing, Ningxia Medical University, Yinchuan, 750004, China
| | - Juan Li
- Public Health School, Ningxia Medical University, Yinchuan, 750004, China
| | - Yuhong Zhang
- Public Health School, Ningxia Medical University, Yinchuan, 750004, China.
- NHC Key Laboratory of Metabolic Cardiovascular Diseases Research, Ningxia Medical University, Yinchuan, 750004, China.
- Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan, 750004, China.
| | - Yi Zhao
- Public Health School, Ningxia Medical University, Yinchuan, 750004, China.
- NHC Key Laboratory of Metabolic Cardiovascular Diseases Research, Ningxia Medical University, Yinchuan, 750004, China.
- Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan, 750004, China.
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Wu Y, Zhang Y, Jiao J. The relationship between n-3 polyunsaturated fatty acids and telomere: A review on proposed nutritional treatment against metabolic syndrome and potential signaling pathways. Crit Rev Food Sci Nutr 2022; 64:4457-4476. [PMID: 36330807 DOI: 10.1080/10408398.2022.2142196] [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] [Indexed: 11/06/2022]
Abstract
Metabolic syndrome (MetS), a cluster of metabolic abnormalities composed of central obesity, elevated blood pressure, glucose disturbances, hypercholesterolemia and dyslipidaemia, has increasingly become a public health problem in the 21st century worldwide. The dysfunction of telomeres, the repetitive DNA with highly conserved sequences (5'-TTAGGG-3'), is remarkably correlated with organismal aging, even suggesting a causal relationship with metabolic disorders. The health benefits of n-3 polyunsaturated fatty acids (PUFAs) in multiple disorders are associated with telomere length in evidence, which have recently drawn wide attention. However, functional targets and pathways for the associations of n-3 PUFAs and telomere with MetS remain scare. Few studies have summarized the role of n-3 PUFAs in DNA damage repair pathways, anti-inflammatory pathways, and redox balance, linking with telomere biology, and other potential telomere-related signaling pathways. This review aims to (i) elucidate how n-3 PUFAs ameliorate telomere attrition in the context of anti-oxidation and anti-inflammation; (ii) unravel the role of n-3 PUFAs in modulating telomere-related neuron dysfunction and regulating the neuro-endocrine-immunological network in MetS; (iii) epidemiologically implicate the associations of metabolic disorders and n-3 PUFAs with telomere length; and (iv) suggest promising biochemical approaches and advancing methodologies to overcome the inter-variation problem helpful for future research.
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Affiliation(s)
- Yuqi Wu
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yu Zhang
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Fuli Institute of Food Science, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jingjing Jiao
- Department of Nutrition, School of Public Health, Department of Clinical Nutrition, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
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Gao LL, Ma JM, Fan YN, Zhang YN, Ge R, Tao XJ, Zhang MW, Gao QH, Yang JJ. Lycium barbarum polysaccharide combined with aerobic exercise ameliorated nonalcoholic fatty liver disease through restoring gut microbiota, intestinal barrier and inhibiting hepatic inflammation. Int J Biol Macromol 2021; 183:1379-1392. [PMID: 33992651 DOI: 10.1016/j.ijbiomac.2021.05.066] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 05/04/2021] [Accepted: 05/10/2021] [Indexed: 12/28/2022]
Abstract
Gut microbiota and intestinal permeability have been demonstrated to be the key players in the gut-liver cross talk in nonalcoholic fatty liver disease (NAFLD). Lycium barbarum polysaccharides (LBPs), which seem to be a potential prebiotic, and aerobic exercise (AE) have shown protective effects on NAFLD. However, their combined effects on intestinal microecology remain unclear. This study evaluated the effects of LBP, AE, and its combination (LBP + AE) on gut microbiota composition, intestinal barrier, and hepatic inflammation in NAFLD. LBP + AE showed high abundance and diversity of gut microbiota, restored the gut microbiota composition, increased some Bacteroidetes, short chain fatty acids, but decreased Proteobacteria and the ratio of Firmicutes/Bacteroidetes. Simultaneously, LBP, AE, and LBP + AE could restore the colonic and ileum tight junctions by increasing the expression of zonula occludens-1 and occludin. They also downregulated gut-derived lipopolysaccharides (LPSs), hepatic LPS-binding proteins, inflammatory factors, and related indicators of the LPS/TLR4/NF-κB signaling pathway for the liver. Our results implied that LBP could be considered a prebiotic agent, and LBP + AE might be a promising treatment for NAFLD because it could maintain gut microbiota balance, thereby restoring intestinal barrier and exerting hepatic benefits.
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Affiliation(s)
- Lu-Lu Gao
- School of Public Health and Management, Ningxia Medical University, 1160 Shengli Street, Yinchuan 750004, China.
| | - Jia-Min Ma
- School of Public Health and Management, Ningxia Medical University, 1160 Shengli Street, Yinchuan 750004, China
| | - Yan-Na Fan
- School of Public Health and Management, Ningxia Medical University, 1160 Shengli Street, Yinchuan 750004, China
| | - Yan-Nan Zhang
- School of Public Health and Management, Ningxia Medical University, 1160 Shengli Street, Yinchuan 750004, China
| | - Rui Ge
- School of Public Health and Management, Ningxia Medical University, 1160 Shengli Street, Yinchuan 750004, China
| | - Xiu-Juan Tao
- School of Public Health and Management, Ningxia Medical University, 1160 Shengli Street, Yinchuan 750004, China
| | - Meng-Wei Zhang
- School of Public Health and Management, Ningxia Medical University, 1160 Shengli Street, Yinchuan 750004, China
| | - Qing-Han Gao
- School of Public Health and Management, Ningxia Medical University, 1160 Shengli Street, Yinchuan 750004, China.
| | - Jian-Jun Yang
- School of Public Health and Management, Ningxia Medical University, 1160 Shengli Street, Yinchuan 750004, China.
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Liu X, Liu X, Shi Q, Fan X, Qi K. Association of telomere length and telomerase methylation with n-3 fatty acids in preschool children with obesity. BMC Pediatr 2021; 21:24. [PMID: 33413203 PMCID: PMC7788823 DOI: 10.1186/s12887-020-02487-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 12/22/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Telomeres play a crucial role in cellular survival and its length is a predictor for onset of chronic non-communicable diseases. Studies on association between telomeres and obesity in children have brought discrepant results and the underlying mechanisms and influential factors are to be elucidated. This study aimed to investigate changes in telomere length and telomerase reverse transcriptase (TERT) DNA methylation, and further to determine their correlation with n-3 polyunsaturated fatty acids (PUFAs) in preschool children with obesity. METHODS Forty-six preschool children with obesity aged 3 to 4 years were included in the study, with equal numbers of age- and gender-matched children with normal weight as control. Leukocyte telomere length was determined by the ratio of telomeric product and single copy gene obtained using real-time qPCR. DNA methylation of TERT promoter was analyzed by bisulfite sequencing. Fatty acids in erythrocytes were measured by gas chromatography with a total of 15 fatty acids analyzed. The total saturated fatty acids (SFAs), total n-6 PUFAs, total n-3 PUFAs, and the ratio of arachidonic acid (AA) to docosahexaenoic acid (DHA) were calculated. Then the correlation between leukocyte telomere length, TERT promoter methylation and fatty acids was determined. RESULTS In preschool children with obesity, leukocyte telomeres were shortened and had a negative association with the body mass index. The methylated fractions in 13 of 25 CpG sites in the TERT promoter were increased by approximately 3 to 35% in the children with obesity compared to the normal weight children. Erythrocyte lauric acid and total SFAs, lenoleic acid and total n-6 PUFAs were higher, and DHA was lower in the children with obesity than those in the children with normal weight. Correlative analysis showed that leukocyte telomere length had a positive association with total SFAs and DHA, and a negative association with the AA/DHA ratio. However, no association between erythrocyte DHA and the TERT promoter methylation was found. CONCLUSION These data indicate that the reduced body DHA content and increased AA/DHA ratio may be associated with shortened leukocyte telomeres in child obesity, which is probably not involved in the TERT promoter methylation.
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Affiliation(s)
- Xuanyi Liu
- Laboratory of Nutrition and Development, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No.56 Nan-li-shi Road, Beijing, 100045, China
| | - Xiaozhou Liu
- Laboratory of Nutrition and Development, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No.56 Nan-li-shi Road, Beijing, 100045, China
| | - Qiaoyu Shi
- Laboratory of Nutrition and Development, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No.56 Nan-li-shi Road, Beijing, 100045, China
| | - Xiuqin Fan
- Laboratory of Nutrition and Development, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No.56 Nan-li-shi Road, Beijing, 100045, China
| | - Kemin Qi
- Laboratory of Nutrition and Development, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No.56 Nan-li-shi Road, Beijing, 100045, China.
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