Correlation analysis between smoke exposure and serum neurofilament light chain in adults: a cross-sectional study

Abstract Background Smoke exposure is a prevalent and well-documented risk factor for various diseases across different organ systems. Serum neurofilament light chain (sNfL) has emerged as a promising biomarker for a multitude of nervous system disorders. However, there is a notable paucity of resea...

Full description

Bibliographic Details
Main Authors: Ning Zhu, Jing Zhu, Shanhong Lin, Hang Yu, Chao Cao
Format: Article
Language:English
Published: BMC 2024-02-01
Series:BMC Public Health
Subjects:
Online Access:https://doi.org/10.1186/s12889-024-17811-8
_version_ 1827325931057840128
author Ning Zhu
Jing Zhu
Shanhong Lin
Hang Yu
Chao Cao
author_facet Ning Zhu
Jing Zhu
Shanhong Lin
Hang Yu
Chao Cao
author_sort Ning Zhu
collection DOAJ
description Abstract Background Smoke exposure is a prevalent and well-documented risk factor for various diseases across different organ systems. Serum neurofilament light chain (sNfL) has emerged as a promising biomarker for a multitude of nervous system disorders. However, there is a notable paucity of research exploring the associations between smoke exposure and sNfL levels. Methods We conducted a comprehensive analysis of the National Health and Nutrition Examination Survey (NHANES) cross-sectional data spanning the years 2013 to 2014. Serum cotinine levels were classified into the following three groups: < 0.05, 0.05–2.99, and ≥ 3 ng/ml. Multiple linear regression models were employed to assess the relationships between serum cotinine levels and sNfL levels. Additionally, we utilized restricted cubic spline analyses to elucidate the potential nonlinear relationship between serum cotinine and sNfL levels. Results A total of 2053 participants were included in our present research. Among these individuals, the mean age was 47.04 ± 15.32 years, and males accounted for 48.2% of the total study population. After adjusting the full model, serum cotinine was positively correlated with sNfl in the second group (β = 0.08, 95%CI 0.01–0.15) and in the highest concentration of serum cotinine (β = 0.10, 95%CI 0.01–0.19) compared to the group with the lowest serum cotinine concentrations. Current smokers, in comparison to non-smokers, exhibited a trend toward elevated sNfL levels (β = 0.07, 95%CI 0.01–0.13). Furthermore, subgroup analyses revealed interactions between serum cotinine levels and different age groups (P for interaction = 0.001) and gender stratification (P for interaction = 0.015) on sNfL levels. Conclusion The study suggested that serum cotinine was significantly and positively associated with sNfl levels in adult participants. Furthermore, current smokers tend to exhibit elevated sNfL levels. This research sheds light on the potential implications of smoke exposure on neurological function impairment and underscores the importance of further exploration in this area.
first_indexed 2024-03-07T14:36:22Z
format Article
id doaj.art-f185082b367141d5af8dcc412626b3b4
institution Directory Open Access Journal
issn 1471-2458
language English
last_indexed 2024-03-07T14:36:22Z
publishDate 2024-02-01
publisher BMC
record_format Article
series BMC Public Health
spelling doaj.art-f185082b367141d5af8dcc412626b3b42024-03-05T20:37:45ZengBMCBMC Public Health1471-24582024-02-0124111110.1186/s12889-024-17811-8Correlation analysis between smoke exposure and serum neurofilament light chain in adults: a cross-sectional studyNing Zhu0Jing Zhu1Shanhong Lin2Hang Yu3Chao Cao4Department of Respiratory and Critical Care Medicine, Key Laboratory of Respiratory Disease of Ningbo, The First Affiliated Hospital of Ningbo UniversityDepartment of Cardiology, The First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital)Department of Ultrasound, The First Affiliated Hospital of Ningbo UniversityDepartment of Respiratory and Critical Care Medicine, Key Laboratory of Respiratory Disease of Ningbo, The First Affiliated Hospital of Ningbo UniversityDepartment of Respiratory and Critical Care Medicine, Key Laboratory of Respiratory Disease of Ningbo, The First Affiliated Hospital of Ningbo UniversityAbstract Background Smoke exposure is a prevalent and well-documented risk factor for various diseases across different organ systems. Serum neurofilament light chain (sNfL) has emerged as a promising biomarker for a multitude of nervous system disorders. However, there is a notable paucity of research exploring the associations between smoke exposure and sNfL levels. Methods We conducted a comprehensive analysis of the National Health and Nutrition Examination Survey (NHANES) cross-sectional data spanning the years 2013 to 2014. Serum cotinine levels were classified into the following three groups: < 0.05, 0.05–2.99, and ≥ 3 ng/ml. Multiple linear regression models were employed to assess the relationships between serum cotinine levels and sNfL levels. Additionally, we utilized restricted cubic spline analyses to elucidate the potential nonlinear relationship between serum cotinine and sNfL levels. Results A total of 2053 participants were included in our present research. Among these individuals, the mean age was 47.04 ± 15.32 years, and males accounted for 48.2% of the total study population. After adjusting the full model, serum cotinine was positively correlated with sNfl in the second group (β = 0.08, 95%CI 0.01–0.15) and in the highest concentration of serum cotinine (β = 0.10, 95%CI 0.01–0.19) compared to the group with the lowest serum cotinine concentrations. Current smokers, in comparison to non-smokers, exhibited a trend toward elevated sNfL levels (β = 0.07, 95%CI 0.01–0.13). Furthermore, subgroup analyses revealed interactions between serum cotinine levels and different age groups (P for interaction = 0.001) and gender stratification (P for interaction = 0.015) on sNfL levels. Conclusion The study suggested that serum cotinine was significantly and positively associated with sNfl levels in adult participants. Furthermore, current smokers tend to exhibit elevated sNfL levels. This research sheds light on the potential implications of smoke exposure on neurological function impairment and underscores the importance of further exploration in this area.https://doi.org/10.1186/s12889-024-17811-8Smoke exposureSerum cotinineSerum neurofilament light chainNeurological functionNHANES
spellingShingle Ning Zhu
Jing Zhu
Shanhong Lin
Hang Yu
Chao Cao
Correlation analysis between smoke exposure and serum neurofilament light chain in adults: a cross-sectional study
BMC Public Health
Smoke exposure
Serum cotinine
Serum neurofilament light chain
Neurological function
NHANES
title Correlation analysis between smoke exposure and serum neurofilament light chain in adults: a cross-sectional study
title_full Correlation analysis between smoke exposure and serum neurofilament light chain in adults: a cross-sectional study
title_fullStr Correlation analysis between smoke exposure and serum neurofilament light chain in adults: a cross-sectional study
title_full_unstemmed Correlation analysis between smoke exposure and serum neurofilament light chain in adults: a cross-sectional study
title_short Correlation analysis between smoke exposure and serum neurofilament light chain in adults: a cross-sectional study
title_sort correlation analysis between smoke exposure and serum neurofilament light chain in adults a cross sectional study
topic Smoke exposure
Serum cotinine
Serum neurofilament light chain
Neurological function
NHANES
url https://doi.org/10.1186/s12889-024-17811-8
work_keys_str_mv AT ningzhu correlationanalysisbetweensmokeexposureandserumneurofilamentlightchaininadultsacrosssectionalstudy
AT jingzhu correlationanalysisbetweensmokeexposureandserumneurofilamentlightchaininadultsacrosssectionalstudy
AT shanhonglin correlationanalysisbetweensmokeexposureandserumneurofilamentlightchaininadultsacrosssectionalstudy
AT hangyu correlationanalysisbetweensmokeexposureandserumneurofilamentlightchaininadultsacrosssectionalstudy
AT chaocao correlationanalysisbetweensmokeexposureandserumneurofilamentlightchaininadultsacrosssectionalstudy