151
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Lee YH. Association between the Neutrophil-to-lymphocyte Ratio, and Platelet-to-lymphocyte Ratio and Rheumatoid Arthritis and their Correlations with the Disease Activity: A Meta-analysis. JOURNAL OF RHEUMATIC DISEASES 2018. [DOI: 10.4078/jrd.2018.25.3.169] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Young Ho Lee
- Division of Rheumatology, Department of Internal Medicine, Anam Hospital, Korea University College of Medicine, Seoul, Korea
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152
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Depressive symptoms are associated with leukocyte telomere length in American Indians: findings from the Strong Heart Family Study. Aging (Albany NY) 2017; 8:2961-2970. [PMID: 27870638 PMCID: PMC5191880 DOI: 10.18632/aging.101104] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Accepted: 11/04/2016] [Indexed: 11/25/2022]
Abstract
Patients with depression have an increased risk for many aging-related disorders, but the biological mechanisms underlying this link remain to be determined. Here we examined the association between depressive symptoms and leukocyte telomere length (LTL), a marker of biological aging, among 2,175 American Indians participating in the Strong Heart Family Study. Depressive symptoms were assessed by the Center for Epidemiologic Studies of Depression Scale (CES-D), which was categorized into four levels: none (< 10), mild (10-15), moderate (16-24), and severe (> 24). LTL (T/S ratio) was quantified by qPCR. The association between depressive symptoms and LTL was examined by multivariate generalized estimating equation models, adjusting for sociodemographic factors, lifestyle factors, and chronic conditions. Results showed that individuals with a higher level of depressive symptoms had shorter LTL. Specifically, LTL in participants reporting none, mild, moderate, and severe depressive symptoms were 1.000, 0.999, 0.988, and 0.966, respectively (P for trend = 0.0278). Moreover, gender appears to modulate the effect of reported depressive symptoms that fall in the severe range (CES-D > 24) on LTL (P for interaction = 0.0346). Our results suggest that depressive symptoms may accelerate biological aging through pathways beyond traditional risk factors in American Indians.
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153
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Liu JJ, Wei YB, Forsell Y, Lavebratt C. Stress, depressive status and telomere length: Does social interaction and coping strategy play a mediating role? J Affect Disord 2017; 222:138-145. [PMID: 28704801 DOI: 10.1016/j.jad.2017.07.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 06/25/2017] [Accepted: 07/05/2017] [Indexed: 12/28/2022]
Abstract
BACKGROUND Telomeres have been reported to be shorter in individuals exposed to psychosocial stress and in those with depression. Since negative environmental stress is a risk factor for depression, the present study tested whether stressors in childhood (CA) and recent adulthood (NLE) predicted telomere attrition directly and/or indirectly through individuals' depressive status 3-6 years before TL measurement; and then if social interaction and coping strategies in adulthood influenced the relationship between depressive status and TL. METHODS Participants were 337 individuals with a recent depression diagnosis and 574 screened controls that derived from a longitudinal population-based cohort study conducted in Stockholm, Sweden. Relative TL was determined using qPCR. Relationships between the key variables stressors, depressive status, social interaction, coping strategies and TL were explored by path analysis in males and females, adjusting for age. RESULTS The key variables were correlated in expected directions. In females, depressive status and age had direct negative effects on TL (p < 0.05) and both CA (p = 0.025) and NLE (p < 0.003) had indirect negative effects on TL. For males, the effects of stressors and depressive status on TL were mediated by social interaction (p = 0.005) and the coping strategy worry (p = 0.005). In females, no mediation effect of social interaction and coping strategy was detected. LIMITATIONS Only little of the TL variation was explained by the models. The environmental stress information was limited. CONCLUSION Our findings propose gender-specific paths from environmental stressors through depressive status, social interaction and coping strategy to TL.
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Affiliation(s)
- Jia Jia Liu
- Neurogenetics Unit, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Ya Bin Wei
- Neurogenetics Unit, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden; Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Yvonne Forsell
- Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
| | - Catharina Lavebratt
- Neurogenetics Unit, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden; Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden.
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154
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Khan RJ, Gebreab SY, Crespo PR, Xu R, Gaye A, Davis SK. Race-specific associations between health-related quality of life and cellular aging among adults in the United States: evidence from the National Health and Nutrition Examination Survey. Qual Life Res 2017; 26:2659-2669. [PMID: 28597109 PMCID: PMC5597687 DOI: 10.1007/s11136-017-1610-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/29/2017] [Indexed: 12/29/2022]
Abstract
PURPOSE Poor health-related quality of life (HRQOL) could lead to higher morbidity and mortality through telomere attrition or accelerated cellular aging. We conducted a cross-sectional analysis to examine the relationship between four dimensions of HRQOL and leukocyte telomere length (LTL) among a nationally representative sample of 3547 US adults (≥20 years) using the data from the 2001-2002 National Health and Nutrition Examination Survey. METHOD We used HRQOL survey information collected on individuals' self-rated general health, recent physical health, recent mental health, and recent activity limitation. Telomere length was assessed using quantitative polymerase chain reaction. Multiple linear regressions were used to estimate the relationship between each dimension of HRQOL and log-transformed values of LTL with adjustment for sample weights and design effects. RESULTS HRQOL-race interactions were significant, and the results were stratified by race. After controlling for demographic factors, disease conditions, and lifestyle variables, worse general health was significantly associated with shorter LTL for Blacks (coefficient, β: -0.022, 95% Confidence Interval, 95% CI: -0.03 to -0.01), but not for Whites or Mexican Americans. Unwell physical health was associated with shorter telomere length for Whites (β: -0.005, 95% CI: -0.01 to -0.001) only. Unwell mental health showed no significant association with LTL in any race. CONCLUSIONS Although longitudinal studies are needed to prove causality, our findings suggest that HRQOL could be associated with LTL shortening. We also found a possible racial difference in this association and recommend additional multiethnic studies to confirm this and to understand the reasons and consequences of this difference.
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Affiliation(s)
- Rumana J Khan
- Genomics of Metabolic, Cardiovascular and Inflammatory Disease Branch, Social Epidemiology Research Unit, National Human Genome Research Institute, National Institutes of Health, 10 Center Drive, Room 7N316, MSC 1644, Bethesda, MD, 20892, USA.
| | - Samson Y Gebreab
- Genomics of Metabolic, Cardiovascular and Inflammatory Disease Branch, Social Epidemiology Research Unit, National Human Genome Research Institute, National Institutes of Health, 10 Center Drive, Room 7N316, MSC 1644, Bethesda, MD, 20892, USA
| | - Pia R Crespo
- Genomics of Metabolic, Cardiovascular and Inflammatory Disease Branch, Social Epidemiology Research Unit, National Human Genome Research Institute, National Institutes of Health, 10 Center Drive, Room 7N316, MSC 1644, Bethesda, MD, 20892, USA
| | - Ruihua Xu
- Genomics of Metabolic, Cardiovascular and Inflammatory Disease Branch, Social Epidemiology Research Unit, National Human Genome Research Institute, National Institutes of Health, 10 Center Drive, Room 7N316, MSC 1644, Bethesda, MD, 20892, USA
| | - Amadou Gaye
- Genomics of Metabolic, Cardiovascular and Inflammatory Disease Branch, Social Epidemiology Research Unit, National Human Genome Research Institute, National Institutes of Health, 10 Center Drive, Room 7N316, MSC 1644, Bethesda, MD, 20892, USA
| | - Sharon K Davis
- Genomics of Metabolic, Cardiovascular and Inflammatory Disease Branch, Social Epidemiology Research Unit, National Human Genome Research Institute, National Institutes of Health, 10 Center Drive, Room 7N316, MSC 1644, Bethesda, MD, 20892, USA
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155
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Lee YH, Song GG. Association between circulating prolactin levels and psoriasis and its correlation with disease severity: a meta-analysis. Clin Exp Dermatol 2017; 43:27-35. [PMID: 28940303 DOI: 10.1111/ced.13228] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2017] [Indexed: 01/22/2023]
Affiliation(s)
- Y. H. Lee
- Division of Rheumatology; Department of Internal Medicine; Korea University College of Medicine; Seoul Korea
| | - G. G. Song
- Division of Rheumatology; Department of Internal Medicine; Korea University College of Medicine; Seoul Korea
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156
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Lee YH, Song GG. Association between circulating leptin levels and systemic lupus erythematosus: an updated meta-analysis. Lupus 2017; 27:428-435. [PMID: 28795654 DOI: 10.1177/0961203317725587] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Objective We aimed to evaluate the relationship between circulating leptin levels and systemic lupus erythematosus (SLE). Methods MEDLINE, EMBASE, and Cochrane library databases were searched. Meta-analyses were performed comparing serum/plasma leptin levels in patients with SLE and healthy controls, and on patients with SLE in subgroups based on ethnicity, sample size, data type, and matched variables (age, sex, and/or body mass index (BMI)). Results Eighteen studies including 1333 patients with SLE and 1048 controls were ultimately selected, which showed that leptin levels were significantly higher in the SLE group than in the control group (SMD = 0.611, 95% CI = 0.275-0.947, p < 0.001). When we excluded two outlier studies because of high heterogeneity, leptin levels were also significantly higher in the SLE group than in the control group (SMD = 0.619, 95% CI = 0.431-0.807, p < 0.001). Stratification by ethnicity showed significantly elevated leptin levels in the SLE group in European, Asian, Arab, Latin American, and mixed populations. Subgroup analysis by sample size showed significantly higher leptin levels in the SLE group by small ( n ≤ 100) and large sample numbers ( n > 100) (SMD = 0.780, 95% CI = 0.445-1.115, p < 0.001; SMD = 0.495, 95% CI = 0.275-0.715, p < 0.001). Stratification by data type revealed significantly higher leptin levels in the original data and imputed data groups. Subgroup analysis adjustment revealed significantly higher leptin levels in the SLE group, regardless of adjustment for variables. Conclusions Our meta-analysis demonstrated that leptin levels were significantly higher in patients with SLE, regardless of ethnicity, sample size, data type, and matched variables.
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Affiliation(s)
- Y H Lee
- Division of Rheumatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - G G Song
- Division of Rheumatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
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157
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Solomon Z, Tsur N, Levin Y, Uziel O, Lahav M, Ohry A. The implications of war captivity and long-term psychopathology trajectories for telomere length. Psychoneuroendocrinology 2017; 81:122-128. [PMID: 28448821 DOI: 10.1016/j.psyneuen.2017.04.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 04/07/2017] [Indexed: 11/28/2022]
Abstract
BACKGROUND Previous findings have demonstrated the link between trauma, its psychopathological aftermath and cellular aging, as reflected in telomere length. However, as long-term examinations of psychopathology following trauma are scarce, very little is known regarding the repercussions of depression and PTSD trajectories of psychopathology for telomeres. The current study examined the implications of war captivity and depression/PTSD trajectories on telomere length. METHODS Ninety-nine former prisoners of war (ex-POWs) from the 1973 Yom Kippur War were evaluated for depression and PTSD at 18, 30, 35 and 42 years after the war. Data on leukocyte telomere length of ex-POWs and 79 controls was collected 42 years after the war. RESULTS Ex-POWs had shorter telomeres compared to controls (Cohen's d=.5 indicating intermediate effect). Ex-POWs with chronic depression had shorter telomeres compared to those with delayed onset of depression (Cohen's d=4.89), and resilient ex-POWs (Cohen's d= 3.87), indicating high effect sizes. PTSD trajectories were not implicated in telomere length (Partial eta2=.16 and p=.11). CONCLUSION The findings suggest that the detrimental ramifications of war captivity are extensive, involving premature cellular senesces. These findings further point to the wear-and-tear effect of long-term depression, but not PTSD, on telomere length. Explanations for the findings are discussed.
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Affiliation(s)
- Zahava Solomon
- I-Core Research Center for Mass Trauma, Tel-Aviv University, Israel; Bob Shapell School of Social Work, Tel Aviv University, Tel Aviv, Israel
| | - Noga Tsur
- I-Core Research Center for Mass Trauma, Tel-Aviv University, Israel; Bob Shapell School of Social Work, Tel Aviv University, Tel Aviv, Israel.
| | - Yafit Levin
- Bob Shapell School of Social Work, Tel Aviv University, Tel Aviv, Israel
| | - Orit Uziel
- The Felsenstein Medical Research Center, Rabin Medical Center, Petah Tikva, Israel; Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Meir Lahav
- The Felsenstein Medical Research Center, Rabin Medical Center, Petah Tikva, Israel; Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel; Institute of Hematology, Davidoff Cancer Center, Rabin Medical Center, Petah Tikva, Israel
| | - Avi Ohry
- Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel
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158
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Tucker LA. Physical activity and telomere length in U.S. men and women: An NHANES investigation. Prev Med 2017; 100:145-151. [PMID: 28450121 DOI: 10.1016/j.ypmed.2017.04.027] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 04/18/2017] [Accepted: 04/22/2017] [Indexed: 01/09/2023]
Abstract
The principal objective was to determine the extent to which physical activity (PA) accounts for differences in leukocyte telomere length (LTL) in a large random sample of U.S. adults. Another purpose was to assess the extent to which multiple demographic and lifestyle covariates affect the relationship between PA and LTL. A total of 5823 adults from the National Health and Nutrition Examination Survey (NHANES 1999-2002) were studied cross-sectionally. Employing the quantitative polymerase chain reaction method, LTL was compared to standard reference DNA. PA was indexed using MET-minutes using self-reported frequency, intensity, and duration of participation in 62 physical activities. Covariates were controlled statistically. Telomeres were 15.6 base pairs shorter for each year of chronological age (F=723.2, P<0.0001). PA was inversely related to LTL after adjusting for all the covariates (F=8.3, P=0.0004). Telomere base pair differences between adults with High activity and those in the Sedentary, Low, and Moderate groups were 140, 137, and 111, respectively. Adults with High activity were estimated to have a biologic aging advantage of 9years (140 base pairs÷15.6) over Sedentary adults. The difference in cell aging between those with High and Low activity was also significant, 8.8years, as was the difference between those with High and Moderate PA (7.1years). Overall, PA was significantly and meaningfully associated with telomere length in U.S. men and women. Evidently, adults who participate in high levels of PA tend to have longer telomeres, accounting for years of reduced cellular aging compared to their more sedentary counterparts.
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Affiliation(s)
- Larry A Tucker
- Department of Exercise Sciences, 237 SFH, Brigham Young University, Provo, UT 84602, USA.
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159
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Kim JH, Kim GJ, Lee D, Ko JH, Lim I, Bang H, Koes BW, Seong B, Lee DC. Higher maternal vitamin D concentrations are associated with longer leukocyte telomeres in newborns. MATERNAL AND CHILD NUTRITION 2017; 14. [PMID: 28598004 DOI: 10.1111/mcn.12475] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 04/07/2017] [Accepted: 05/05/2017] [Indexed: 12/14/2022]
Abstract
Gestational vitamin D insufficiency is related with increased risks of various diseases and poor health outcomes later in life. Telomere length at birth or early in life is known to be a predictor of individual health. Both vitamin D and telomere length are related with various health conditions, and vitamin D concentrations are associated with leukocyte telomere lengths in women. We investigated the association between maternal vitamin D concentrations and newborn leukocyte telomere lengths. This cross-sectional study included 106 healthy pregnant women without adverse obstetric outcomes and their offspring. We examined the maternal age, weight before pregnancy, health behaviours, and nutritional intakes, along with each newborn's sex and birthweight, and we measured maternal height, telomere length, total white blood cell count, and glycosylated haemoglobin as covariates. Pearson's correlation coefficients were calculated to evaluate the relationship between the baseline variables and newborn leukocyte telomere lengths. To confirm that there was an independent association between newborn leukocyte telomere lengths and maternal vitamin D concentrations, we performed a stepwise multiple linear regression analysis. Newborn leukocyte telomere lengths correlated positively with maternal leukocyte telomere lengths (r = .76, p < .01), maternal 25-hydroxyvitamin D concentrations (r = .72, p < .01), maternal energy intakes (r = .22, p = .03), and newborn body weights (r = .51, p < .01). In the multivariate model, newborn leukocyte telomere lengths were associated with maternal vitamin D concentrations (β = .33, p < .01). These findings suggest that the maternal vitamin D concentration during pregnancy may be a significant determinant of the offspring's telomere length.
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Affiliation(s)
- Jung-Ha Kim
- Department of Family Medicine, Chung-Ang University Medical Center, Seoul, Korea.,Department of Family Medicine, Yonsei University Graduate School, Seoul, Korea
| | - Gwang Jun Kim
- Department of Obstetrics & Gynecology, Chung-Ang University Medical Center, Seoul, Korea
| | - Donghee Lee
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Jae-Hong Ko
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Inja Lim
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Hyoweon Bang
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Bart W Koes
- Department of General Practice, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Byeongchan Seong
- Department of Applied Statistics, Chung-Ang University, Seoul, Korea
| | - Duk-Chul Lee
- Department of Family Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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160
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Xie X, Chen Y, Ma L, Shen Q, Huang L, Zhao B, Wu T, Fu Z. Major depressive disorder mediates accelerated aging in rats subjected to chronic mild stress. Behav Brain Res 2017; 329:96-103. [DOI: 10.1016/j.bbr.2017.04.022] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Revised: 04/08/2017] [Accepted: 04/11/2017] [Indexed: 01/12/2023]
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161
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Association between low bone mineral density and fibromyalgia: a meta-analysis. Clin Rheumatol 2017; 36:2573-2579. [PMID: 28536824 DOI: 10.1007/s10067-017-3683-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 04/26/2017] [Accepted: 05/14/2017] [Indexed: 10/19/2022]
Abstract
We aimed to evaluate the relationship between bone mineral density (BMD) and fibromyalgia (FM). Meta-analyses were performed comparing BMD in FM patients and healthy controls, and in FM patients in subgroups based on ethnicity, BMD site, age, sex, and measurement method. Twelve studies including 695 FM patients and 784 controls were selected. Meta-analysis by ethnicity revealed a significantly lower BMD in the FM group in Caucasian populations [standardized mean difference (SMD) = -0.144, 95% CI = -0.271-(-0.017), p = 0.026], but not in Turkish populations. Subgroup analysis by BMD site showed that BMD was significantly lower in the FM group than in the control group in the lumbar spine [SMD = -0.588 (medium), 95% CI = -1.142-(-0.033), p = 0.038], but not in the femur neck and hip. Stratification by measurement method revealed a significantly lower BMD in the FM group by dual X-ray absorptiometry and dual-photon absorptiometry [SMD = -0.531 (medium), 95% CI = -1.040-(-0.023), p = 0.041; SMD = -0.315 (small), 95% CI = -0.544-(-0.085), p = 0.007, respectively], but not by quantitative ultrasound, but not by quantitative ultrasound. Subgroup analysis by sex, menopause status, and age revealed a significantly lower BMD in the female FM group [SMD = -0.588 (medium), 95% CI = -1.142-(-0.033), p = 0.038], but not in the pre-menopausal group and the group greater than mean age 50 years old. Our meta-analysis demonstrated that BMD was significantly lower in FM patients in Caucasian and female populations.
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162
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Bae SC, Lee YH. Calprotectin levels in rheumatoid arthritis and their correlation with disease activity: a meta-analysis. Postgrad Med 2017; 129:531-537. [PMID: 28425837 DOI: 10.1080/00325481.2017.1319729] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE We evaluated the relationship between calprotectin levels and rheumatoid arthritis (RA), and the correlation between plasma/serum calprotectin and RA activity. METHODS We searched PUBMED, EMBASE, and Cochrane databases and performed meta-analyses comparing plasma/serum or synovial fluid calprotectin levels in RA patients and controls, and correlation coefficients between calprotectin levels and disease activity for 28 joints (DAS28) as well as C-reactive protein (CRP) in RA patients. RESULTS Sixteen studies including 849 RA patients and 266 controls were available for meta-analysis. Meta-analysis showed that calprotectin levels were significantly higher in the RA group than in the control group (SMD = 2.337, 95% CI = 1.544-3.130, p < 1.0 × 10-8). Stratification by rheumatoid factor (RF) status revealed significantly elevated calprotectin levels in the RF-positive RA group compared to that of the RF-negative RA group (SMD = 0.574, 95% CI = 0.345-0.804, p = 9.2 × 10-7). Meta-analysis of correlation coefficients identified a significant positive correlation between calprotectin levels and CRP or DAS28 (correlation coefficient for CRP = 0.566, 95% CI = 0.512-0.615, p < 1.0 × 10-8; correlation coefficient for DAS28 = 0.438, 95% CI = 0.269-0.518, p = 2.5 × 10-6). Calprotectin levels in synovial fluid were significantly higher in the RA group than in the control group (SMD = 2.891, 95% CI = 1.067-4.715, p = 0.002). CONCLUSIONS Our meta-analysis demonstrates that circulating and synovial fluid calprotectin levels are high in patients with RA, and that circulating calprotectin levels positively correlate with RA activity.
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Affiliation(s)
- Sang-Cheol Bae
- a Department of Rheumatology , Hanyang University Hospital for Rheumatic Diseases , Seoul , Korea
| | - Young Ho Lee
- a Department of Rheumatology , Hanyang University Hospital for Rheumatic Diseases , Seoul , Korea.,b Division of Rheumatology, Department of Internal Medicine , Korea University College of Medicine , Seoul , Korea
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163
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Vincent J, Hovatta I, Frissa S, Goodwin L, Hotopf M, Hatch SL, Breen G, Powell TR. Assessing the contributions of childhood maltreatment subtypes and depression case-control status on telomere length reveals a specific role of physical neglect. J Affect Disord 2017; 213:16-22. [PMID: 28187293 PMCID: PMC6191534 DOI: 10.1016/j.jad.2017.01.031] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 12/15/2016] [Accepted: 01/23/2017] [Indexed: 12/16/2022]
Abstract
BACKGROUND Studies have provided evidence that both childhood maltreatment and depressive disorders are associated with shortened telomere lengths. However, as childhood maltreatment is a risk factor for depression, it remains unclear whether this may be driving shortened telomere lengths observed amongst depressed patients. Furthermore, it's unclear if the effects of maltreatment on telomere length shortening are more pervasive amongst depressed patients relative to controls, and consequently whether biological ageing may contribute to depression's pathophysiology. The current study assesses the effects of childhood maltreatment, depression case/control status, and the interactive effect of both childhood maltreatment and depression case/control status on relative telomere length (RTL). METHOD DNA samples from 80 depressed subjects and 100 control subjects were utilized from a U.K. sample (ages 20-84), with childhood trauma questionnaire data available for all participants. RTL was quantified using quantitative polymerase chain reactions. Univariate linear regression analyses were used to assess the effects of depression status, childhood maltreatment and depression by childhood maltreatment interactions on RTL. The false discovery rate (q<0.05) was used for multiple testing correction. RESULTS Analysis of depression case/control status showed no significant main effect on RTL. Four subtypes of childhood maltreatment also demonstrated no significant main effect on RTL, however a history of physical neglect did significantly predict shorter RTL in adulthood (F(1, 174)=7.559, p=0.007, q=0.042, Variance Explained=4.2%), which was independent of case/control status. RTL was further predicted by severity of physical neglect, with the greatest differences observed in older maltreated individuals (>50 years old). There were no significant depression case/control status by childhood maltreatment interactions. LIMITATIONS A relatively small sample limited our power to detect interaction effects, and we were unable to consider depression chronicity or recurrence. CONCLUSION Shortened RTL was specifically associated with childhood physical neglect, but not the other subtypes of maltreatment or depression case/control status. Our results suggest that the telomere-eroding effects of physical neglect may represent a biological mechanism important in increasing risk for ageing-related disorders. As physical neglect is more frequent amongst depressed cases generally, it may also represent a confounding factor driving previous associations between shorter RTL and depression case status.
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Affiliation(s)
- John Vincent
- King's College London, MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, London, UK
| | - Iiris Hovatta
- Department of Biosciences, University of Helsinki, Helsinki, Finland
| | - Souci Frissa
- King's College London, Health Service & Population Research, Institute of Psychiatry, Psychology & Neuroscience, London, UK
| | - Laura Goodwin
- King's College London, Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, London, UK,University of Liverpool, Department of Psychological Sciences, Liverpool, UK
| | - Matthew Hotopf
- King's College London, Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, London, UK,National Institute for Health Research Biomedical Research Centre for Mental Health, Institute of Psychiatry, Psychology and Neuroscience at the Maudsley Hospital and King's College London, UK
| | - Stephani L. Hatch
- King's College London, Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, London, UK
| | - Gerome Breen
- King's College London, MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, London, UK,National Institute for Health Research Biomedical Research Centre for Mental Health, Institute of Psychiatry, Psychology and Neuroscience at the Maudsley Hospital and King's College London, UK
| | - Timothy R. Powell
- King's College London, MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, London, UK,Corresponding author at: MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, PO80, 16 De Crespigny Park, London SE5 8AF, UK.
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164
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Song GG, Lee YH. Circulating prolactin level in systemic lupus erythematosus and its correlation with disease activity: a meta-analysis. Lupus 2017; 26:1260-1268. [DOI: 10.1177/0961203317693094] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objective This study aimed to evaluate the relationship between circulating prolactin level and systemic lupus erythematosus (SLE), and to establish a correlation between plasma/serum prolactin levels and SLE activity. Methods We performed a meta-analysis comparing the plasma/serum prolactin levels in patients with SLE to controls, and examined correlation coefficients between circulating prolactin level and SLE disease activity. Results Twenty-five studies with a total of 1056 SLE patients and 426 controls were included. Prolactin levels were significantly higher overall in the SLE group than in the control group (standardized mean difference (SMD) = 0.987, 95% CI = 0.512–1.463, p = 4.7 × 10−5). Stratification by ethnicity showed significantly elevated prolactin levels in the SLE group in Asian, Latin American, and mixed populations (SMD = 0.813, 95% CI = 0.137–1.490, p = 0.018; SMD = 0.981, 95% CI = 0.307–1.655, p = 0.004; SMD = 1.469, 95% CI = 0.443–2.495, p = 0.005, respectively), but not in the European population. Subgroup analysis by sample size showed significantly higher prolactin levels in the SLE group by small ( n < 30) and large sample numbers ( n > 30). Meta-analysis of correlation coefficients showed a significantly positive correlation between circulating prolactin level and SLE activity (correlation coefficient = 0.379, 95% CI = 0.026–0.487, p = 4.0 × 10−9). Circulating prolactin levels were positively associated with SLE activity in European, Asian, and mixed populations (SMD = 0.532, 95% CI = 0.443–0.609 p < 1.0 × 10−8; SMD = 0.427, 95% CI = 0.240–0.583, p = 2.4 × 10−5; SMD = 0.433, 95% CI = 0.212–0.591, p = 2.7 × 10−5, respectively). Conclusions Our meta-analysis demonstrated that circulating prolactin levels are higher in patients with SLE, and that a significantly positive correlation exists between prolactin levels and SLE activity.
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Affiliation(s)
- G G Song
- Division of Rheumatology, Department of Internal Medicine, Korea University College of Medicine, Korea
| | - Y H Lee
- Division of Rheumatology, Department of Internal Medicine, Korea University College of Medicine, Korea
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165
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Yang M, Prescott J, Poole EM, Rice MS, Kubzansky LD, Idahl A, Lundin E, De Vivo I, Tworoger SS. Prediagnosis Leukocyte Telomere Length and Risk of Ovarian Cancer. Cancer Epidemiol Biomarkers Prev 2017; 26:339-345. [PMID: 28209595 DOI: 10.1158/1055-9965.epi-16-0466] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 08/08/2016] [Accepted: 08/30/2016] [Indexed: 11/16/2022] Open
Abstract
Background: The associations between telomere length and cancer risk are equivocal, and none have examined the association between prediagnosis leukocyte telomere length (LTL) and the risk of developing ovarian cancer.Methods: We prospectively measured LTL collected from 442 ovarian cancer cases and 727 controls in the Nurses' Health Studies and the Northern Sweden Health and Disease Study. Cases were matched to one or two controls on age, menopausal status, and date of blood collection. Odds ratios (OR) and 95% confidence intervals (CI) were estimated using conditional logistic regression.Results: LTL was measured a median of 9.5 years before ovarian cancer diagnosis among cases. We observed a decreased risk of ovarian cancer with longer LTL. In multivariable models, women in the top quartile of LTL had an OR for ovarian cancer of 0.67 (95% CI, 0.46-0.97) compared with those in the bottom quartile. Inverse associations were stronger for nonserous cases (ORquartile 4 vs. quartile 1 of LTL = 0.55, 95% CI, 0.33-0.94) and rapidly fatal cases (i.e., cases who died within 3 years of diagnosis; ORquartile 4 vs. quartile 1 of LTL = 0.55, 95% CI, 0.32-0.95).Conclusions: Our prospective findings suggest that longer circulating LTL may be associated with a lower ovarian cancer risk, especially for nonserous and rapidly fatal cases. The evaluation of LTL in relation to ovarian cancer risk by tumor subtypes is warranted in larger prospective studies.Impact: Prediagnosis LTL may reflect an early event in the ovarian cancer development and could serve as a biomarker to predict future risk. Cancer Epidemiol Biomarkers Prev; 26(3); 339-45. ©2017 AACR.
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Affiliation(s)
- Meng Yang
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Jennifer Prescott
- Channing Division of Network Medicine, Brigham and Women's Hospital/Harvard Medical School, Boston, Massachusetts
| | - Elizabeth M Poole
- Channing Division of Network Medicine, Brigham and Women's Hospital/Harvard Medical School, Boston, Massachusetts
| | - Megan S Rice
- Channing Division of Network Medicine, Brigham and Women's Hospital/Harvard Medical School, Boston, Massachusetts.,Department of Medicine, Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Boston, Massachusetts
| | - Laura D Kubzansky
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Annika Idahl
- Department of Clinical Sciences, Obstetrics and Gynecology, Umeå University, Umeå, Sweden
| | - Eva Lundin
- Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
| | - Immaculata De Vivo
- Channing Division of Network Medicine, Brigham and Women's Hospital/Harvard Medical School, Boston, Massachusetts.,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Shelley S Tworoger
- Channing Division of Network Medicine, Brigham and Women's Hospital/Harvard Medical School, Boston, Massachusetts. .,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
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166
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Lee YH, Bae SC. Associations between circulating IL-17 levels and rheumatoid arthritis and between IL-17 gene polymorphisms and disease susceptibility: a meta-analysis. Postgrad Med J 2017; 93:465-471. [DOI: 10.1136/postgradmedj-2016-134637] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 12/08/2016] [Accepted: 12/11/2016] [Indexed: 12/28/2022]
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167
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Lee YH, Song GG. Meta-analysis of Circulating Adiponectin, Visfatin, and Ghrelin Levels in Patients with Systemic Lupus Erythematosus. JOURNAL OF RHEUMATIC DISEASES 2017. [DOI: 10.4078/jrd.2017.24.2.99] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Young Ho Lee
- Division of Rheumatology, Department of Internal Medicine, Korea University Medical Center, Korea University College of Medicine, Seoul, Korea
| | - Gwan Gyu Song
- Division of Rheumatology, Department of Internal Medicine, Korea University Medical Center, Korea University College of Medicine, Seoul, Korea
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168
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Lee YH, Song GG. Urinary Tumor Necrosis Factor-like Weak Inducer of Apoptosis as a Biomarker for Lupus Nephritis: A Meta-analysis. JOURNAL OF RHEUMATIC DISEASES 2017. [DOI: 10.4078/jrd.2017.24.2.85] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Young Ho Lee
- Division of Rheumatology, Department of Internal Medicine, Korea University Medical Center, Korea University College of Medicine, Seoul, Korea
| | - Gwan Gyu Song
- Division of Rheumatology, Department of Internal Medicine, Korea University Medical Center, Korea University College of Medicine, Seoul, Korea
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169
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Lee YH, Song GG. Association of Neutrophil to Lymphocyte Ratio, Platelet to Lymphocyte Ratio, and Mean Platelet Volume with Systemic Lupus Erythematosus Disease Activity: A Meta-analysis. JOURNAL OF RHEUMATIC DISEASES 2017. [DOI: 10.4078/jrd.2017.24.5.279] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Young Ho Lee
- Division of Rheumatology, Department of Internal Medicine, Korea University Medical Center, Korea University College of Medicine, Seoul, Korea
| | - Gwan Gyu Song
- Division of Rheumatology, Department of Internal Medicine, Korea University Medical Center, Korea University College of Medicine, Seoul, Korea
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170
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Malouff JM, Schutte NS. A meta-analysis of the relationship between anxiety and telomere length. ANXIETY STRESS AND COPING 2016; 30:264-272. [PMID: 27844481 DOI: 10.1080/10615806.2016.1261286] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND OBJECTIVES Telomeres are protective caps at the ends of chromosomes, and shorter telomeres are associated with poor physical health. The present study set out to consolidate the varying effect sizes found so far in studies of anxiety and telomere length. DESIGN AND METHODS A meta-analytic investigation of the relationship between anxiety and telomere length used information from 17 different samples comprising a total of 19,424 participants. RESULTS The results showed a small but significant association, r = -.06, between higher anxiety and shorter telomeres. Studies comparing individuals diagnosed with an anxiety disorder with other individuals had a significant effect size, and studies that did not use this comparison threshold did not have a significant effect size. CONCLUSIONS Anxiety is associated with an important biomarker related to health. Future experimental studies that examine the impact of interventions intended to reduce anxiety in conjunction with measurement of telomere length can further clarify the impact of anxiety on telomere length.
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Affiliation(s)
- John M Malouff
- a Department of Psychology , University of New England , Armidale , Australia
| | - Nicola S Schutte
- a Department of Psychology , University of New England , Armidale , Australia
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171
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Levandowski ML, Tractenberg SG, de Azeredo LA, De Nardi T, Rovaris DL, Bau CHD, Rizzo LB, Maurya PK, Brietzke E, Tyrka AR, Grassi-Oliveira R. Crack cocaine addiction, early life stress and accelerated cellular aging among women. Prog Neuropsychopharmacol Biol Psychiatry 2016; 71:83-9. [PMID: 27346744 DOI: 10.1016/j.pnpbp.2016.06.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 06/19/2016] [Accepted: 06/19/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND Early life stress (ELS) and addiction are related to age-related diseases and telomere shortening. However, the role of telomere length (TL) in crack cocaine addiction remains unknown. The purpose of this study was to investigate the TL in a sample of crack cocaine dependent-women who reported an ELS history and in a community-based sample of elderly women as a reference group for senescence. METHODS This study included treatment seeking crack cocaine dependents women (n=127) and elderly women without a psychiatric diagnosis (ELD, n=49). The crack cocaine sample was divided in two groups according to their Childhood Trauma Questionnaire (CTQ) scores: presence of history of childhood abuse and neglect (CRACK-ELS) and absence of ELS history (CRACK). TL was assessed by T/S ratio obtained from peripheral blood DNA using quantitative PCR assay. RESULTS CRACK and CRACK-ELS subjects exhibited shortened TL in comparison to the ELD group, despite their younger age. Among crack cocaine sample, CRACK-ELS group had significantly shorter telomeres than the CRACK group. Correlation analysis within crack cocaine group indicated that TL was negatively correlated with emotional abuse scores. CONCLUSIONS These results support previous findings associating telomere shortening with both ELS and drug addiction. This study suggests new evidence of a distinct biological phenotype for drug-dependent women with ELS. The results support the biological senescence hypothesis underpinning ELS experience.
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Affiliation(s)
- Mateus Luz Levandowski
- Developmental Cognitive Neuroscience Lab (DCNL), Biomedical Research Institute (IPB), Pontifical Catholic University of Rio Grande do Sul (PUCRS), Brazil
| | - Saulo Gantes Tractenberg
- Developmental Cognitive Neuroscience Lab (DCNL), Biomedical Research Institute (IPB), Pontifical Catholic University of Rio Grande do Sul (PUCRS), Brazil
| | - Lucas Araújo de Azeredo
- Developmental Cognitive Neuroscience Lab (DCNL), Biomedical Research Institute (IPB), Pontifical Catholic University of Rio Grande do Sul (PUCRS), Brazil
| | - Tatiana De Nardi
- Developmental Cognitive Neuroscience Lab (DCNL), Biomedical Research Institute (IPB), Pontifical Catholic University of Rio Grande do Sul (PUCRS), Brazil
| | - Diego L Rovaris
- Department of Genetics, Instituto de Biociências, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Claiton H D Bau
- Department of Genetics, Instituto de Biociências, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Lucas B Rizzo
- Research Group in Behavioral Neuroscience of Bipolar Disorder, Department of Psychiatry, Federal University of São Paulo (Unifesp), São Paulo, SP, Brazil
| | - Pawan Kumar Maurya
- Research Group in Behavioral Neuroscience of Bipolar Disorder, Department of Psychiatry, Federal University of São Paulo (Unifesp), São Paulo, SP, Brazil
| | - Elisa Brietzke
- Research Group in Behavioral Neuroscience of Bipolar Disorder, Department of Psychiatry, Federal University of São Paulo (Unifesp), São Paulo, SP, Brazil
| | - Audrey R Tyrka
- Mood Disorders Research Program and Laboratory for Clinical and Translational Neuroscience, Department of Psychiatry and Human Behavior, Brown University, USA
| | - Rodrigo Grassi-Oliveira
- Developmental Cognitive Neuroscience Lab (DCNL), Biomedical Research Institute (IPB), Pontifical Catholic University of Rio Grande do Sul (PUCRS), Brazil
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172
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Stressful life events and leucocyte telomere length: Do lifestyle factors, somatic and mental health, or low grade inflammation mediate this relationship? Results from a cohort of Danish men born in 1953. Brain Behav Immun 2016; 58:248-253. [PMID: 27470228 DOI: 10.1016/j.bbi.2016.07.154] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 06/17/2016] [Accepted: 07/24/2016] [Indexed: 11/23/2022] Open
Abstract
Exposure to psychosocial stress is associated with increased risk of a number of somatic and mental disorders with relation to immune system functioning. We aimed to explore whether stressful events in early and recent life was associated with leucocyte telomere length (TL), which is assumed to reflect the accumulated burden of inflammation and oxidative stress occurring during the life course. We specifically aimed to address whether childhood constitutes a sensitive period and how much of the relation between stressful life events and TL is mediated through somatic and mental health, lifestyle, and markers of low-grade inflammation. A cohort of Danish men born in 1953 has been followed since birth in the Metropolit Cohort. These men underwent a health examination including blood sampling in 2010 and a subset of 324 also had a quantitative PCR-based measurement of TL. The relation between stressful life events and TL was analysed using structural equation modelling, which also provided an estimate of the proportion of the total effect mediated by somatic and mental health (cardiovascular disease, body mass and depressive mood), lifestyle factors, and low grade inflammation (C-reactive protein (CRP), interleukin (IL)-6 and IL-10). Total number of stressful events experienced during the life course was not associated with TL. In terms of sensitive periods, we found that number of stressful events in childhood was associated with shorter TL (βper number stressful events in childhood=-0.02(SE=-0.02); P=0.05). This relation was particularly strong for being placed away from home (β=-0.16; P<0.000). Thirty percent of the total effect of stressful events in childhood on TL was mediated by the included variables, with the largest proportion being mediated through depressive mood (16%) and CRP (9%). This study suggests that stressful events in childhood are associated with shorter TL in middle-aged men and that part of this relation is explained by depressive mood and low grade inflammation.
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173
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Lee YH, Bae SC. Association between shortened telomere length and rheumatoid arthritis. Z Rheumatol 2016; 77:160-167. [DOI: 10.1007/s00393-016-0209-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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174
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Eisenberg DT. Telomere length measurement validity: the coefficient of variation is invalid and cannot be used to compare quantitative polymerase chain reaction and Southern blot telomere length measurement techniques. Int J Epidemiol 2016; 45:1295-1298. [PMID: 27581804 DOI: 10.1093/ije/dyw191] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Affiliation(s)
- Dan Ta Eisenberg
- Department of Anthropology, and Center for Studies in Demography and Ecology, University of Washington,Campus Box 353100, Seattle, WA 98195, USA. E-mail:
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175
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Lee YH, Jung JH, Seo YH, Kim JH, Choi SJ, Ji JD, Song GG. Association between shortened telomere length and systemic lupus erythematosus: a meta-analysis. Lupus 2016; 26:282-288. [PMID: 27510600 DOI: 10.1177/0961203316662721] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Objective We aimed to evaluate the relationship between telomere length and systemic lupus erythematosus (SLE). Methods PUBMED and EMBASE databases were searched; meta-analyses were performed comparing telomere length in SLE patients and healthy controls, and on SLE patients in subgroups based on ethnicity, sample type, assay method and data type. Results Eight studies including 472 SLE patients and 365 controls were ultimately selected which showed that telomere length was significantly shorter in the SLE group than in the control group (standardized mean difference (SMD) = -0.835, 95% confidence interval (CI) = -1.291 to -0.380, p = 3.3 × 10-4). Stratification by ethnicity showed significantly shortened telomere length in the SLE group in Caucasian, Asian and mixed populations (SMD = -0.455, 95% CI = -0.763 to -0.147, p = 0.004; SMD = -0.887, 95% CI = -1.261 to -0.513, p = 3.4 × 10-4; SMD = -0.535, 95% CI = -0.923 to -0.147, p = 0.007; respectively). Furthermore, telomere length was significantly shorter in the SLE group than in the control group in whole blood and peripheral blood mononuclear cell groups (SMD = -0.361, 95% CI = -0.553 to -0.169, p = 2.3 × 10-4; SMD = -1.546, 95% CI = -2.583 to -0.510, p = 0.003; respectively); a similar trend was observed in leukocyte groups (SMD = -0.699, 95% CI = -1.511 to -0.114, p = 0.092). Meta-analyses based on assay method or data type revealed similar associations. Conclusions Our meta-analysis demonstrated that telomere length was significantly shorter in patients with SLE, regardless of ethnicity, sample type or assay method evaluated.
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Affiliation(s)
- Y H Lee
- Division of Rheumatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - J H Jung
- Division of Rheumatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Y H Seo
- Division of Rheumatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - J-H Kim
- Division of Rheumatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - S J Choi
- Division of Rheumatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - J D Ji
- Division of Rheumatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - G G Song
- Division of Rheumatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
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Mathur MB, Epel E, Kind S, Desai M, Parks CG, Sandler DP, Khazeni N. Perceived stress and telomere length: A systematic review, meta-analysis, and methodologic considerations for advancing the field. Brain Behav Immun 2016; 54:158-169. [PMID: 26853993 PMCID: PMC5590630 DOI: 10.1016/j.bbi.2016.02.002] [Citation(s) in RCA: 169] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Revised: 01/23/2016] [Accepted: 02/03/2016] [Indexed: 02/06/2023] Open
Abstract
IMPORTANCE Psychological stress contributes to numerous diseases and may do so in part through damage to telomeres, protective non-coding segments on the ends of chromosomes. OBJECTIVE We conducted a systematic review and meta-analysis to determine the association between self-reported, perceived psychological stress (PS) and telomere length (TL). DATA SOURCES We searched 3 databases (PubMed, PsycInfo, and Scopus), completed manual searches of published and unpublished studies, and contacted all study authors to obtain potentially relevant data. STUDY SELECTION Two independent reviewers assessed studies for original research measuring (but not necessarily reporting the correlation between) PS and TL in human subjects. 23 studies met inclusion criteria; 22 (totaling 8948 subjects) could be meta-analyzed. DATA EXTRACTION AND SYNTHESIS We assessed study quality using modified MINORS criteria. Since not all included studies reported PS-TL correlations, we obtained them via direct calculation from author-provided data (7 studies), contact with authors (14 studies), or extraction from the published article (1 study). MAIN OUTCOMES AND MEASURES We conducted random-effects meta-analysis on our primary outcome, the age-adjusted PS-TL correlation. We investigated potential confounders and moderators (sex, life stress exposure, and PS measure validation) via post hoc subset analyses and meta-regression. RESULTS Increased PS was associated with a very small decrease in TL (n=8724 total; r=-0.06; 95% CI: -0.10, -0.008; p=0.01; α=0.025), adjusting for age. This relationship was similar between sexes and within studies using validated measures of PS, and marginally (nonsignificantly) stronger among samples recruited for stress exposure (r=-0.13; vs. general samples: b=-0.11; 95% CI: -0.27, 0.01; p=0.05; α=0.013). Publication bias may exist; correcting for its effects attenuated the relationship. CONCLUSIONS AND RELEVANCE Our analysis finds a very small, statistically significant relationship between increased PS (as measured over the past month) and decreased TL that may reflect publication bias, although fully parsing the effects of publication bias from other sample-size correlates is challenging, as discussed. The association may be stronger with known major stressors and is similar in magnitude to that noted between obesity and TL. All included studies used single measures of short-term stress; the literature suggests long-term chronic stress may have a larger cumulative effect. Future research should assess for potential confounders and use longitudinal, multidimensional models of stress.
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Affiliation(s)
- Maya B. Mathur
- Quantitative Sciences Unit, Stanford University, Palo Alto, CA, USA,To whom correspondence should be addressed: Maya B. Mathur, Quantitative Sciences Unit, c/o Inna Sayfer, Stanford University, 1070 Arastradero Rd., Palo Alto, CA, 94305, t: 650-863-2384;
| | - Elissa Epel
- Department of Psychiatry, University of California, San Francisco, CA, USA
| | - Shelley Kind
- Department of Psychological and Brain Sciences, Boston University, Boston, MA, USA
| | - Manisha Desai
- Quantitative Sciences Unit, Stanford University, Palo Alto, CA, USA
| | - Christine G. Parks
- Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, USA
| | - Dale P. Sandler
- Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, USA
| | - Nayer Khazeni
- Division of Pulmonary and Critical Care Medicine, Stanford University, Stanford, CA, USA,Center for Health Policy and Center for Primary Care and Outcomes Research, Stanford University, Stanford, CA
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Shortened telomere length in patients with depression: A meta-analytic study. J Psychiatr Res 2016; 76:84-93. [PMID: 26919486 DOI: 10.1016/j.jpsychires.2016.01.015] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 01/24/2016] [Accepted: 01/29/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND Accelerated telomere shortening is associated with stress-related cell damage and aging. Patients with depression have been shown to have shortened life expectancy and to be associated with multiple age-related systemic diseases. Previous studies have examined leukocyte telomere length (LTL) in patients with depression, but have shown inconsistent results. METHODS We conducted meta-analyses by pooling relevant results strictly from all eligible case-control studies for cross-sectional comparison of LTL between depressive patients and control subjects (16 studies involving 7207 subjects). The effect sizes (shown as Hedges' g) of each individual study were synthesized by using a random effects model. RESULTS Our analysis revealed telomere length is significantly shorter in subjects with depression in comparison to healthy controls (Hedges' g = -0.42, p = 1 × 10(-5), corresponding to r = -0.21). Significant heterogeneity among studies examining LTL in subjects with depression was found (Q = 116.07, df = 16, I(2) = 86.21%, p < 1 × 10(-8)), which can possibly be explained by methods used in measuring telomere length (Q = 18.42, df = 2, p = 1 × 10(-4)). There was no significant publication bias, nor moderating effect of age, female percentage, or illness duration of depression on synthesized results. CONCLUSIONS Our results support the hypothesis that depression is associated with accelerated cell aging. Future studies are required to clarify whether the association is mediated through environmental stress, and whether effective treatment can halt cell aging.
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Perviz S, Khan H, Pervaiz A. Plant Alkaloids as an Emerging Therapeutic Alternative for the Treatment of Depression. Front Pharmacol 2016; 7:28. [PMID: 26913004 PMCID: PMC4753303 DOI: 10.3389/fphar.2016.00028] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 01/31/2016] [Indexed: 11/13/2022] Open
Abstract
Depression is a heterogeneous mood disorder that has been classified and treated in a variety of ways. Although, a number of synthetic drugs are being used as standard treatment for clinically depressed patients, but they have adverse effects that can compromise the therapeutic treatments and patient's compliance. Unlike, synthetic medications, herbal medicines are widely used across the globe due to their wide applicability and therapeutic efficacy associated with least side effects, which in turn has initiated the scientific research regarding the antidepressant activity. This review is mostly based on the literature of the last decade, aimed at exploring the preclinical profile of plant-based alkaloids (the abundant secondary metabolite) as an emerging therapy for depression.
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Affiliation(s)
- Sadia Perviz
- Department of Pharmacy, Abdul Wali Khan University Mardan Mardan, Pakistan
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University Mardan Mardan, Pakistan
| | - Aini Pervaiz
- Department of Pharmacy, Abdul Wali Khan University Mardan Mardan, Pakistan
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