Jun Liu

Dr. Jun Liu

orcid

Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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29 October 2013 in Lipids in Health and Disease
Verified
Journal Article
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JLJun Liu
Jun Liu
FZFang-Fang Zeng
Fang-Fang Zeng
ZLZhaomin Liu
Zhaomin Liu
CZCai-Xia Zhang
Cai-Xia Zhang
Wenhua LingWenhua Ling
Wenhua Ling
Yuming ChenYuming Chen
Yuming Chen
The relationship of triglycerides (TG) to the risk of death remains uncertain. The aim of this study was to determine the associations between blood triglyceride levels and cardiovascular diseases (CVDs) mortality and all-cause mortality. Four databases were searched without language restriction for relevant studies: PubMed, ScienceDirect, EMBASE, and Google Scholar. All prospective cohort studies reporting an association between TG and CVDs or all-cause mortality published before July 2013 were included. Risk ratios (RRs) with 95% confidence intervals (CIs) were extracted and pooled according to TG categories, unit TG, and logarithm of TG using a random-effects model with inverse-variance weighting. We identified 61 eligible studies, containing 17,018 CVDs deaths in 726,030 participants and 58,419 all-cause deaths in 330,566 participants. Twelve and fourteen studies, respectively, reported the effects estimates of CVDs and total mortality by TG categories. Compared to the referent (90–149 mg/dL), the pooled RRs (95% CI) of CVDs mortality for the lowest (< 90 mg/dL), borderline-high (150–199 mg/dL), and high TG (≥ 200 mg/dL) groups were 0.83 (0.75 to 0.93), 1.15 (1.03 to 1.29), and 1.25 (1.05 to 1.50); for total mortality they were 0.94 (0.85 to 1.03), 1.09 (1.02 to 1.17), and 1.20 (1.04 to 1.38), respectively. The risks of CVDs and all-cause deaths were increased by 13% and 12% (p < 0.001) per 1-mmol/L TG increment in twenty-two and twenty-two studies reported RRs per unit TG, respectively. In conclusion, elevated blood TG levels were dose-dependently associated with higher risks of CVDs and all-cause mortality.

30 July 2022 in BMC Public Health
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Journal Article
Open access
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SZShiwen Zhang
Shiwen Zhang
CCChen Cheng
Chen Cheng
ZLZejian Lin
Zejian Lin
LXLinzi Xiao
Linzi Xiao
XSXin Su
Xin Su
JLJun Liu
Jun Liu
Background: Ovarian cancer (OC) is a major cause of cancer-related deaths among women. The aim of this study was to estimate and report data on the current burden of ovarian cancer worldwide over the past 30 years. Method: Based on the data provided by GBD 2019, we collected and interpreted the disease data of ovarian cancer by incidence, mortality, disability-adjusted life-years (DALYs), and used corresponding age-standardized rates as indicators. Also, we categorized the data by attributed risk factors and captured deaths due to high fasting plasma glucose, occupational exposure to asbestos and high body-mass index, respectively. All outcomes in the study were reported using mean values and corresponding 95% uncertainty intervals (95% UI). Results: Globally, there were 294422 (260649 to 329727) incident cases in 2019, and the number of deaths and DALYs were 198412 (175357 to 217665) and 5.36 million (4.69 to 5.95). The overall burden was on the rise, with a percentage change of 107.8% (76.1 to 135.7%) for new cases, 103.8% (75.7 to 126.4%) for deaths and 96.1% (65.0 to 120.5%) for DALYs. Whereas the age-standardized rates kept stable during 1990–2019. The burden of ovarian cancer increased with age. and showed a totally different trends among SDI regions. Although high SDI region had the declining rates, the burden of ovarian cancer remained stable in high-middle and low SDI regions, and the middle and low-middle SDI areas showed increasing trends. High fasting plasma glucose was estimated to be the most important attributable risk factor for ovarian cancer deaths globally, with a percentage change of deaths of 7.9% (1.6 to 18.3%), followed by occupational exposure to asbestos and high body mass index. Conclusions: Although the age-standardized rates of ovarian cancer didn’t significantly change at the global level, the burden still increased, especially in areas on the lower end of the SDI range. Also, the disease burden due to different attributable risk factors showed heterogeneous, and it became more severe with age.

28 August 2014 in British Journal of Nutrition
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Journal Article
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JLJun Liu
Jun Liu
WSWen-Qi Shi
Wen-Qi Shi
YCYi Cao
Yi Cao
LHLi-Ping He
Li-Ping He
KGKe Guan
Ke Guan
Yuming ChenYuming Chen
Yuming Chen
The association between serum carotenoids and the metabolic syndrome (MetS) remains uncertain, and little is known about this relationship in the Chinese population. The present study examined the association between serum carotenoid concentrations and the MetS in Chinese adults. We conducted a community-based cross-sectional study in which 2148 subjects (1547 women and 601 men) aged 50–75 years were recruited in urban Guangzhou, China. Dietary data and other covariates were collected during face-to-face interviews. Blood pressure, waist circumference, blood lipids, glucose and serum carotenoids (α-, β-carotene, β-cryptoxanthin, lycopene and lutein/zeaxanthin) were examined. We found dose–response inverse relationships between individual serum carotenoid concentrations and total carotenoids and the prevalence of the MetS after adjusting for potential confounders (P for trend < 0·001). The OR of the MetS for the highest (v. lowest) quartile were 0·31 (95 % CI 0·20, 0·47) for α-carotene, 0·23 (95 % CI 0·15, 0·36) for β-carotene, 0·44 (95 % CI 0·29, 0·67) for β-cryptoxanthin, 0·39 (95 % CI 0·26, 0·58) for lycopene, 0·28 (95 % CI 0·18, 0·44) for lutein+zeaxanthin and 0·19 (95 % CI 0·12, 0·30) for total carotenoids. Higher concentrations of each individual carotenoid and total carotenoids were significantly associated with a decrease in the number of abnormal MetS components (P for trend < 0·001–0·023). Higher serum carotenoid levels were associated with a lower prevalence of the MetS and fewer abnormal MetS components in middle-aged and elderly Chinese adults.

12 February 2014 in PLOS ONE
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Journal Article
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ZLZhaomin Liu
Zhaomin Liu
SHSuzanne C. Ho
Suzanne C. Ho
YCYu-Ming Chen
Yu-Ming Chen
JLJun Liu
Jun Liu
Jean WooJean Woo
Jean Woo
Studies suggested that the inter-individual differences in metabolizing isoflavone daidzein to equol or O-desmethylangolensin (ODMA) might explain the inconsistency of the soy/isoflavones efficacy on cardiovascular health. The study aims to evaluate the relationship between equol and ODMA phenotypes and cardiovascular risks with habitual isoflavone consumption in Chinese postmenopausal women. This is a cross-sectional study among 726 prehypertensive postmenopal women who were screened for a randomized controlled trial. 648 women returned a daidzein-challenged urine samples for determination of equol and O-DMA production. 595 attended clinic visits for assessment of cardiovascular risks including body composition, blood pressure (BP), serum lipids, uric acid, high sensitivity C-reactive protein (hs-CRP), fasting glucose and free fatty acid (FFA). The prevalences of equol and O-DMA producers were 53.2% and 60.9% respectively. Equol producers had higher fat free mass (p = 0.001), lower systolic (p = 0.01) and diastolic (p = 0.01) BP, serum triglyceride (p = 0.023), hs-CRP (p = 0.015) and FFA (p = 0.001) than non-producers. O-DMA producers had lower body fat% (p = 0.032), SBP (p = 0.02), total cholesterol (p = 0.002) than non-producers. The significant differences remained after further adjustment for potential confounders. The habitual soy isoflavones intake had little relation to cardiovascular risk factors in either equol/O-DMA producer phenotypes. Equol/O-DMA producers had more favorable cardiovascular risk profiles than non-producers in prehypertensive postmenopausal women.

1 October 2014 in Nutrition, Metabolism and Cardiovascular Diseases
Verified
Journal Article
Closed access
JLJun Liu
Jun Liu
LSL.L. Sun
L.L. Sun
LHL.P. He
L.P. He
WLW.H. Ling
W.H. Ling
ZLZ.M. Liu
Z.M. Liu
Yuming ChenYuming Chen
Yuming Chen

29 April 2025 in Cell Biology and Toxicology
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Journal Article
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GLGuoyue Liu
Guoyue Liu
GJGuiyang Jia
Guiyang Jia
YRYingcong Ren
Yingcong Ren
CYCunzhi Yin
Cunzhi Yin
XXXuan Xiao
Xuan Xiao
MCMiao Chen
Miao Chen
Objective Hyperoxic exposure induces acute lung injury (ALI). We analyzed the mechanism of long non-coding RNA (lncRNA) growth-arrested DNA damage-inducible gene 7 (gadd7) regulating mitofusin 1 (MFN1) in Hyperoxia-induced ALI (HALI) type II alveolar epithelial cell (AEC II) apoptosis. Methods The HALI rat model was generated using hyperoxic induction and treated with shRNA-gadd7 and rapamycin (Rapa), with ALI, apoptotic level, total protein concentration and total cell, neutrophil and macrophage counts assessed. The HALI cell model was developed on hyperoxia-induced RLE-6TN cells and processed with oe-MFN1, si-gadd7 and Rapa. Cell viability, apoptosis, TOM20/LC3BII co-localization, mitochondrial membrane potential (MMP), superoxide dismutase activity, malonaldehyde, reactive oxygen species (ROS), tumor necrosis factor-α, interleukin (IL)-10, IL-6, IL-1β, gadd7, MFN1, Cleaved caspase-3, Cleaved poly (ADP-ribose) polymerase, B-cell lymphoma-2 (Bcl-2), Bcl-2-associated X, LC3BI/II, lysine-specific demethylase 1 (LSD1), p62, and H3K9me3 protein levels were measured. gadd7-LSD1 interaction was predicted and verified by RPISeq database, RIP, and RNA pull-down assay. Results In HALI rats, gadd7 was up-regulated in lung tissues, and gadd7 silencing alleviated oxidative stress, ALI and apoptosis. gadd7 knockdown inhibited oxidative stress and apoptosis though MFN1, and mediated mitophagy (evidenced by diminished LC3BII/LC3BI ratio, TOM20/LC3BII co-localization and ROS level, and elevated p62 level and MMP), which were reversed by mitophagy activation. By recruiting LSD1 to down-regulate H3K9me3 level and promote MFN1 expression, gadd7-mediated mitophagy affected ALI and apoptosis in HALI rats. Conclusion LncRNA gadd7 regulated MFN1 expression by recruiting LSD1 to down-regulate H3K9me3 level and mediate mitophagy, thereby promoting AEC II apoptosis in HALI.