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Du R, Tang X, Yang C, Shi J, Lai Y, Ding S, Huang W. Association between the duration of smoking cessation and α-Klotho levels in the US middle-aged and elderly population. Heliyon 2024; 10:e38298. [PMID: 39398068 PMCID: PMC11467537 DOI: 10.1016/j.heliyon.2024.e38298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 09/20/2024] [Accepted: 09/20/2024] [Indexed: 10/15/2024] Open
Abstract
Background α-Klotho is a molecule associated with aging and several diseases. Previous studies have reported decreased levels of serum α-Klotho (SαKl) in smokers compared to never smokers. Interestingly, we also found the SαKl level could partly recover in those who quit smoking. The objective of this study was to investigate SαKl levels in the US population who quit smoking for a certain period. Methods A total of 9268 participants, ranging in age from 40 to 79 years were enrolled in this cross-sectional study, 37.04 % were identified as former smoker. Data from the NHANES conducted between 2007 and 2016 were utilized for analysis. The association between the period of smoking cessation and SαKl levels was evaluated through multivariate linear regression models. Additionally, a detailed analysis stratified by key clinical factors was performed. Results The mean level of SαKl among the former smoker was 827.41 pg/mL. After full adjustment, the SαKl level increased over time after smoking cessation, with an increase of 1.20 pg/ml per year of abstinence (P = 0.005). The linear correlation persists regardless of the duration of the smoking habit before quitting. In the stratified analysis, a positive correlation was observed between duration of smoking cessation and SαKl levels in individuals aged 60-79 years, females, normal weight individuals, those involved in moderate or vigorous physical activity, and those with a history of cancer (all P<0.05). Conclusion This study showed a positive association between the duration of smoking cessation and SαKl levels in former smokers. Prolonged abstinence may contribute to increased SαKl levels which may protect people against aging-related diseases.
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Affiliation(s)
- Rui Du
- Department of Ultrasound, General Hospital of Central Theater Command, No.627, Wuluo Road, Wuhan 430070, Hubei, China
| | - Xiaoyan Tang
- Department of Cardiology, General Hospital of Central Theater Command, No.627, Wuluo Road, Wuhan 430070, Hubei, China
| | - Cheng Yang
- Department of Radiology, General Hospital of Central Theater Command, No.627, Wuluo Road, Wuhan 430070, Hubei, China
| | - Jinhu Shi
- Department of Cardiology, General Hospital of Central Theater Command, No.627, Wuluo Road, Wuhan 430070, Hubei, China
| | - Yuchen Lai
- School of Medicine, Wuhan University of Science and Technology, No. 947, Heping Avenue, Wuhan 430065, Hubei, China
| | - Shifang Ding
- Department of Cardiology, General Hospital of Central Theater Command, No.627, Wuluo Road, Wuhan 430070, Hubei, China
| | - Wei Huang
- Department of Cardiology, General Hospital of Central Theater Command, No.627, Wuluo Road, Wuhan 430070, Hubei, China
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Pei Y, Huang W, Cao L, Yang F, Chi C, Zhu J. Serum Klotho Is Elevated in Patients with Acute Myocardial Infarction and Could Predict Poor In-Hospital Prognosis. J Cardiovasc Dev Dis 2024; 11:292. [PMID: 39330350 PMCID: PMC11432139 DOI: 10.3390/jcdd11090292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Revised: 08/30/2024] [Accepted: 09/09/2024] [Indexed: 09/28/2024] Open
Abstract
INTRODUCTION Klotho has emerged as a potential protective factor for cardiovascular diseases recently. Nevertheless, the levels of serum Klotho in acute coronary syndrome (ACS) have not been reported. Hence, we undertook a study to investigate the potential correlation between serum Klotho and ACS patients. METHOD This observational cohort study was conducted at Peking University People's Hospital between May 2016 and April 2020. Upon admission, we collected the patients' clinical data and conducted ELISA tests to measure their serum Klotho levels. RESULT A total of 349 patients were enrolled in this study, including 14 patients with UA and 335 patients with AMI. We observed that serum Klotho levels were obviously higher in the AMI group compared to the UA group (median 479.8 vs. 233.8 pg/mL, p = 0.035). In addition, serum Klotho levels were positively correlated with cardiac function and more pronounced in patients who died in the hospital (median 721.1 vs. 468.3 pg/mL, p < 0.001). A logistic regression analysis indicated that age ≥ 78 years old, HR ≥ 90 bpm, Killip classification ≥ 3 grade, and serum Klotho > 645.0 pg/mL were risk factors for poor prognosis. CONCLUSIONS Serum Klotho is obviously increased in patients with AMI and with a positive correlation with cardiac function, and its elevation could serve as a predictor of poor prognosis in ACS patients.
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Affiliation(s)
| | | | | | | | - Cheng Chi
- Department of Emergency, Peking University People’s Hospital, Beijing 100044, China; (Y.P.); (W.H.); (L.C.); (F.Y.)
| | - Jihong Zhu
- Department of Emergency, Peking University People’s Hospital, Beijing 100044, China; (Y.P.); (W.H.); (L.C.); (F.Y.)
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Liang Y, Zhu Y, Zhang M, Zhang Y, Jiang S, Wang X, Yu F, Ma J, Huang Y. Association between plasma trans fatty acids and serum α-klotho levels in adults in the United States of America: an analysis of the NHANES 2009-2010 datasets. Lipids Health Dis 2024; 23:241. [PMID: 39118087 PMCID: PMC11308666 DOI: 10.1186/s12944-024-02226-6] [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: 03/29/2024] [Accepted: 07/29/2024] [Indexed: 08/10/2024] Open
Abstract
BACKGROUND This study aimed to explore the potential associations between trans fatty acid (TFA) and α-klotho levels. METHODS Datasets from the 2009-2010 National Health and Nutrition Examination Survey (NHANES) were analysed for this study. Multivariable linear regression and restricted cubic spline (RCS) analyses were performed to examine the relationships between plasma TFA and serum α-klotho levels. RESULTS A total of 1,205 participants were included, with a geometric mean (GM) of 803.60 (95% CI: 787.45, 820.00) pg/mL for serum α-klotho levels. RCS analysis revealed L-shaped relationships between TFA and α-klotho levels. The inflection points for palmitelaidic acid (PA), vaccinic acid (VA), elaidic acid (EA), and total TFA levels were 4.55, 20.50, 18.70, and 46.40 µmol/L, respectively. Before reaching the inflection point, serum α-klotho levels were negatively correlated with plasma PA, VA, EA and total TFA levels, with β values (95% CI) of -0.15 (-0.24, -0.06), -0.16 (-0.23, -0.09), -0.14 (-0.22, -0.05) and - 0.19 (-0.27, -0.11), respectively. Linolelaidic acid (LA) levels exhibited an inverse and linear association with α-klotho levels ( Pnonlinearity=0.167, Poverall<0.001). L-shaped relationships between TFA and α-klotho levels were also observed in the subgroups of participants who were aged < 65 years, were male, did not exercise, were ex-smokers, and were overweight/obese. CONCLUSIONS L-shaped correlations between plasma PA, VA, EA, and total TFA levels and serum α-klotho levels were observed among adults in the United States.
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Affiliation(s)
- Yali Liang
- Department of Occupational and Environmental Health, School of Public Health, Wannan Medical College, Wuhu, China
| | - Yu Zhu
- School of Public Health, Wannan Medical College, Wuhu, China
| | - Min Zhang
- School of Public Health, Wannan Medical College, Wuhu, China
| | - Yuxiao Zhang
- School of Public Health, Wannan Medical College, Wuhu, China
| | | | - Xinzhi Wang
- School of Public Health, Wannan Medical College, Wuhu, China
| | - Fan Yu
- School of Public Health, Wannan Medical College, Wuhu, China
| | - Jie Ma
- Department of Occupational and Environmental Health, School of Public Health, Wannan Medical College, Wuhu, China.
| | - Yue'e Huang
- Department of Occupational and Environmental Health, School of Public Health, Wannan Medical College, Wuhu, China.
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Liu T, Song M, Li J, Zhao Y, Zhong W. Association between smoking, smoking cessation and serum α-klotho levels among American adults: National Health and Nutrition Examination Survey. PLoS One 2024; 19:e0300562. [PMID: 38498398 PMCID: PMC10947634 DOI: 10.1371/journal.pone.0300562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 02/29/2024] [Indexed: 03/20/2024] Open
Abstract
α-klotho is an anti-aging protein. The correlation between smoking, smoking cessation and serum α-klotho levels remains controversial. The aim of this study was to investigate the association between smoking, smoking cessation and serum α-klotho levels. This cross-sectional study finally included 4877 participants, aged 40-79 years, who participated in the National Health and Nutrition Examination Survey studies from 2013 to 2016. Of these, 2312 (47.4%) were men and 894 (18.3%) were current smokers, and the mean age of the participants was 57.8±10.7 years. Multivariate linear regression modeling was used to assess the association between smoking, smoking cessation and serum α-klotho levels. After adjustment for multiple confounders, this study observed that smoking was negatively associated with serum α-klotho levels (β: -58.3; 95% confidence interval CI: -82.0 to -34.6; p<0.001), whereas smoking cessation was positively associated with serum α-klotho levels (β: 52.3; 95% CI: 24.1 to 80.6; p<0.001). In subgroup and interaction analyses, p-value for the interaction between smoking and race on serum klotho levels was found to be less than 0.001. The correlation between smoking, smoking cessation and serum α-klotho levels remained stable after propensity score matching (β: -54.1; 95% CI: -81.5 to -26.7; p<0.001, β: 54.8; 95% CI: 24.2 to 85.4; p<0.001). In a large sample population, the present study found that smoking, smoking cessation and serum α-klotho levels were associated in opposite directions.
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Affiliation(s)
- Ting Liu
- Department of Endocrinology, Beijing Liangxiang Hospital, Capital Medical University, Beijing, China
| | - Meihua Song
- Department of Public Health, Beijing Normal University Hospital, Beijing, China
| | - Jie Li
- Department of Gastroenterology, Chinese Medicine Hospital of Longquan, Chengdu, China
| | - Yumei Zhao
- The second department of Endocrinology, The first affiliated hospital of Kunming Medical University, Kunming, China
| | - Weiming Zhong
- Department of Gastroenterology, The 904 Hospital of the PLA Joint Logistics Support Force, Wuxi, China
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Du R, Tang X, Jiang M, Qian S, Yang L, Tong X, Huang W. Association between cigarette smoking and serum alpha klotho levels among US adults over 40-years-old: a cross-sectional study. Sci Rep 2023; 13:19519. [PMID: 37945641 PMCID: PMC10636022 DOI: 10.1038/s41598-023-46698-5] [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: 07/21/2023] [Accepted: 11/03/2023] [Indexed: 11/12/2023] Open
Abstract
Alpha klotho (α-Klotho) is an anti-aging molecule associated with aging and several diseases. Previous studies have reported inconsistent levels of α-Klotho in smokers. This study aimed to demonstrate serum α-Klotho levels in smokers among the US population. This cross-sectional study recruited 11,559 participants (aged 40-79 years; 48.2% males). All data were collected from the 2007-2016 National Health and Nutrition Examination Survey. The study comprised adults with reliable Klotho and smoking questionnaire results. The relationship between smoking and serum α-klotho levels was assessed using multivariate linear regression models after adjusting for potential confounders. We also performed a stratified analysis of clinically important variables. The mean serum α-klotho level among the 11,559 participants was 843.85 pg/mL. After full adjustment, habitual smoking was significantly associated with decreased serum levels of α-klotho level (β = - 34.89; 95% CI - 54.97, - 14.81; P = 0.0013) in the total study population. Furthermore, the stratified analysis indicated that the association was insignificant in the 60-79 age group. Quitting smoking was not significantly associated with serum levels of α-klotho as expected (P = 0.1148) in the total study population. However, stratified analyses showed a significant inversed association in the male, those with chronic kidney disease, or those with cancer who quit smoking (all P < 0.05). Cigarette smoking was inversely associated with serum α-Klotho levels among US adults.
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Affiliation(s)
- Rui Du
- Department of Ultrasound, General Hospital of Central Theater Command, No.627, Wuluo Road, Wuhan, 430070, Hubei, China
| | - Xiaoyan Tang
- Department of Cardiology, General Hospital of Central Theater Command, No.627, Wuluo Road, Wuhan, 430070, Hubei, China
| | - Meihua Jiang
- Department of Nephrology, General Hospital of Central Theater Command, No.627, Wuluo Road, Wuhan, 430070, Hubei, China
| | - Shengli Qian
- Department of Ultrasound, General Hospital of Central Theater Command, No.627, Wuluo Road, Wuhan, 430070, Hubei, China
| | - Li Yang
- Department of Ultrasound, General Hospital of Central Theater Command, No.627, Wuluo Road, Wuhan, 430070, Hubei, China
| | - Xiaoling Tong
- Department of Out-patient, General Hospital of Central Theater Command, No.627, Wuluo Road, Wuhan, 430070, Hubei, China.
| | - Wei Huang
- Department of Cardiology, General Hospital of Central Theater Command, No.627, Wuluo Road, Wuhan, 430070, Hubei, China.
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Jiang Z, Wang J, Cai X, Wang P, Liu S. L-shaped association of serum α-Klotho and frailty among the middle-aged and older adults: results from NHANES 2007-2016. BMC Geriatr 2023; 23:716. [PMID: 37924002 PMCID: PMC10623765 DOI: 10.1186/s12877-023-04324-z] [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: 04/03/2023] [Accepted: 09/16/2023] [Indexed: 11/06/2023] Open
Abstract
BACKGROUND Frailty is common and not limited to older age group. Serum α-Klotho works as a biomarker of anti-aging effect. However, there is limited research about the relationship between them in middle-aged and older people and controversy still exists. METHODS Based on data from National Health and Nutrition Examination Survey (NHANES) 2007-2016, we constructed weighted logistic regression models and conducted sensitivity tests to investigate the correlation between frailty and α-Klotho among people aged 40 to 79. And then their relationship was visualized by Restricted Cubic Spline (RCS). Finally, the stratified analyses and interaction tests of covariables was presented in the forest plot. RESULTS A total of 7052 individuals were involved in this study, with mean age of 62.76 ± 0.18 years and females accounting for 51.05%. 2554 of them were in "frailty". After adjustment for relevant covariables, weighted logistic regression models showed that the odds ratio and 95% confidence interval [ORs (95%CI)] of correlation between frailty and Natural Logarithm(ln)-transformed α- Klotho[ln(α-Klotho)] was 0.63 (0.50, 0.79); we then performed a sensitivity analysis and found that the results remained stable. In model 3, individuals in quartiles 2, 3, and 4 showed statistical differences compared with the lowest ln(α-Klotho) quartiles, ORs (95% CI) were 0.74 (0.59, 0.93), 0.72 (0.57, 0.91), 0.71 (0.57, 0.87), respectively. Subsequently, non-linear associations were exhibited by RCS (p<0.001). The turning point for α-Klotho and ln(α-Klotho) were 785.7(pg/ml) and 6.67, respectively. Finally, analysis of the relationship between different levels of ln(α-Klotho) and frailty in different populations revealed differences between groups. The results of the interaction test showed that no other covariables had significant interaction with serum α-Klotho in our study. CONCLUSION The L-shaped and negative correlation was found between α-Klotho and frailty among people aged 40 to 79 in the NHANES from 2007 to 2016.
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Affiliation(s)
- Zewei Jiang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, China
| | - Jiaxin Wang
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, China
| | - Xingdong Cai
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, China
| | - Ping Wang
- Emergency Department, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Shengming Liu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, China.
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Hussain SS, Edwards YJK, Libby EF, Stanford D, Byzek SA, Sin DD, McDonald ML, Raju SV, Rowe SM. Comparative transcriptomics in human COPD reveals dysregulated genes uniquely expressed in ferrets. Respir Res 2022; 23:277. [PMID: 36217144 PMCID: PMC9552453 DOI: 10.1186/s12931-022-02198-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 09/19/2022] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is a progressive lung disease with poor treatment options. However, most mouse models of COPD produce a primarily emphysematous disease not recapitulating clinically meaningful COPD features like chronic bronchitis. METHODS Wild-type ferrets (Mustela putorius furo) were divided randomly into two groups: whole body cigarette smoke exposure and air controls. Ferrets were exposed to smoke from 1R6F research cigarettes, twice daily for six months. RNA-sequencing was performed on RNA isolated from lung tissue. Comparative transcriptomics analyses of COPD in ferrets, mice, and humans were done to find the uniquely expressed genes. Further, Real-time PCR was performed to confirmed RNA-Seq data on multiple selected genes. RESULTS RNA-sequence analysis identified 420 differentially expressed genes (DEGs) that were associated with the development of COPD in ferrets. By comparative analysis, we identified 25 DEGs that are uniquely expressed in ferrets and humans, but not mice. Among DEGs, a number were related to mucociliary clearance (NEK-6, HAS1, and KL), while others have been correlated with abnormal lung function (IL-18), inflammation (TREM1, CTSB), or oxidative stress (SRX1, AHRR). Multiple cellular pathways were aberrantly altered in the COPD ferret model, including pathways associated with COPD pathogenesis in humans. Validation of these selected unique DEGs using real-time PCR demonstrated > absolute 2-fold changes in mRNA versus air controls, consistent with RNA-seq analysis. CONCLUSION Cigarette smoke-induced COPD in ferrets modulates gene expression consistent with human COPD and suggests that the ferret model may be uniquely well suited for the study of aspects of the disease.
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Affiliation(s)
- Shah S Hussain
- Department of Medicine, University of Alabama at Birmingham, MCLM 829 1918 University Blvd, Birmingham, AL, 35294-0006, USA
| | - Yvonne J K Edwards
- Department of Biochemistry & Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL, USA
- Department of Cell Developmental and Integrative Biology, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
- Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Emily Falk Libby
- Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Denise Stanford
- Department of Medicine, University of Alabama at Birmingham, MCLM 829 1918 University Blvd, Birmingham, AL, 35294-0006, USA
| | - Stephen A Byzek
- Department of Medicine, University of Alabama at Birmingham, MCLM 829 1918 University Blvd, Birmingham, AL, 35294-0006, USA
| | - Don D Sin
- Centre for Heart Lung Innovation and Division of Respiratory Medicine, University of British Columbia, Vancouver, Canada
| | - Merry-Lynn McDonald
- Department of Medicine, University of Alabama at Birmingham, MCLM 829 1918 University Blvd, Birmingham, AL, 35294-0006, USA
| | - S Vamsee Raju
- Department of Medicine, University of Alabama at Birmingham, MCLM 829 1918 University Blvd, Birmingham, AL, 35294-0006, USA
- Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Steven M Rowe
- Department of Medicine, University of Alabama at Birmingham, MCLM 829 1918 University Blvd, Birmingham, AL, 35294-0006, USA.
- Department of Cell Developmental and Integrative Biology, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.
- Department of Pediatrics, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.
- Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL, USA.
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