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Bao X, Meng G, Zhang Q, Liu L, Wu H, Du H, Shi H, Xia Y, Guo X, Liu X, Han P, Dong R, Wang X, Li C, Su Q, Gu Y, Fang L, Yu F, Yang H, Kang L, Ma Y, Yu B, Ma X, Sun S, Wang X, Zhou M, Jia Q, Guo Q, Song K, Wang G, Huang G, Niu K. Elevated serum complement C3 levels are associated with prehypertension in an adult population. Clin Exp Hypertens 2017; 39:42-49. [PMID: 28055286 DOI: 10.1080/10641963.2016.1210622] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Tan J, Wen XY, Su Q, Huang ZH, He JX, Xin CL, Wu QF, Zou Y. Reduced expression of SCF in serum and follicle from patients with polycystic ovary syndrome. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2016; 20:5049-5057. [PMID: 28051267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE In humans, stem cell factor (SCF), produced by cumulus granulosa cells during the follicular phase, plays a crucial role in follicular development. Remarkably, polycystic ovary syndrome (PCOS), one of the main reasons affecting women fertility, is accompanied by some abnormal follicles. Is there a relationship between SCF and PCOS? This study aimed to compare the expression of SCF in follicle and serum from patients with and without PCOS undergoing in vitro fertilization (IVF) treatment and to investigate the potential relationship between aberrant SCF expression and PCOS. PATIENTS AND METHODS Serum, follicular fluid (FF) samples and granulosa cells (GCs) from 48 patients with PCOS (PCOS group) and 62 normal ovulatory patients (control group) were collected. SCF was evaluated in FF, serum, and GCs by using enzyme-linked immunosorbent assay, immunofluorescence staining, Western blot and real-time PCR. The rates of metaphase II (MII) oocyte, fertilization, embryo cleavage and high-quality embryo between PCOS group and control group were also analyzed. RESULTS The rates of MII oocyte and fertilization were significantly lower in PCOS group than those in control group (p < 0.05). No difference was observed for the rate of embryo cleavage and high-quality embryo in these two groups. The concentrations of SCF in serum and FF from PCOS patients were remarkably lower than those in the controls (p < 0.05). Moreover, the expressions of SCF protein and SCF mRNA in GCs from PCOS patients were also decreased compared with the controls (p < 0.05). CONCLUSIONS PCOS patients showed a reduced SCF expression in serum and follicle, which might be associated with oocyte dysmaturity and low fertilization rate.
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Yu M, Wang J, Yang Y, Zhu C, Su Q, Guo S, Sun J, Gan Y, Shi X, Gao H. Rotation-Facilitated Rapid Transport of Nanorods in Mucosal Tissues. NANO LETTERS 2016; 16:7176-7182. [PMID: 27700115 DOI: 10.1021/acs.nanolett.6b03515] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Mucus is a viscoelastic gel layer that typically protects exposed surfaces of the gastrointestinal (GI) tract, lung airways, and other mucosal tissues. Particles targeted to these tissues can be efficiently trapped and removed by mucus, thereby limiting the effectiveness of such drug delivery systems. In this study, we experimentally and theoretically demonstrated that cylindrical nanoparticles (NPs), such as mesoporous silica nanorods and calcium phosphate nanorods, have superior transport and trafficking capability in mucus compared with spheres of the same chemistry. The higher diffusivity of nanorods leads to deeper mucus penetration and a longer retention time in the GI tract than that of their spherical counterparts. Molecular simulations and stimulated emission of depletion (STED) microscopy revealed that this anomalous phenomenon can be attributed to the rotational dynamics of the NPs facilitated by the mucin fibers and the shear flow. These findings shed new light on the shape design of NP-based drug delivery systems targeted to mucosal and tumor sites that possess a fibrous structure/porous medium.
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Meng G, Liu F, Fang L, Li C, Zhang Q, Liu L, Wu H, Du H, Shi H, Xia Y, Guo X, Liu X, Bao X, Su Q, Gu Y, Yu F, Yang H, Yu B, Sun S, Wang X, Zhou M, Jia Q, Guo Q, Chen X, Song K, Wang G, Huang G, Niu K. The overall computer/mobile devices usage time is related to newly diagnosed non-alcoholic fatty liver disease: a population-based study. Ann Med 2016; 48:568-576. [PMID: 27649339 DOI: 10.1080/07853890.2016.1219454] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND The computer/mobile devices usage time (CMD-UT) is closely related to a sedentary lifestyle, which is an important risk factor for non-alcoholic fatty liver disease (NAFLD). But their direct relationship remains unclear. AIMS We aimed to examine the relationship between CMD-UT and newly diagnosed non-alcoholic fatty liver disease (NAFLD) in Chinese adults. METHODS This cross-sectional study was conducted on 7516 adults in Tianjin, China. The CMD-UT was collected via a questionnaire included five categories. NAFLD [with normal or elevated alanine transaminase (ALT) levels] was diagnosed by at least twice liver ultrasonography examinations and serum ALT concentrations (>41 U/L in males and >33 U/L in females). RESULTS The prevalence of overall NAFLD, NAFLD with normal or elevated ALT levels was 18.2, 14.2, and 4.0%, respectively. After adjustments for potential confounding factors, the odds ratios (95% confidence interval) of having overall NAFLD by increasing CMD-UT levels were 1.00 for <1 h/d, 1.58 (1.22-2.05) for 1-3 h/d, 1.58 (1.18-2.11) for 3-5 h/d, 1.65 (1.21-2.27) for 5-10 h/d, and 1.99 (1.29-3.05) for ≥10h/d (P-trend for CMD-UT levels = 0.02), respectively. Similar relations were observed with the use of NAFLD with normal or elevated ALT levels. CONCLUSIONS The present study is the first to find that CMD-UT levels are independently associated with NAFLD. Key Messages The computer/mobile devices usage time levels are independently associated with the prevalence of non-alcoholic fatty liver disease.
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Wang C, Zhao L, Su Q, Fan X, Wang Y, Gao S, Wang H, Chen H, Chan CB, Liu Z. Phosphorylation of MITF by AKT affects its downstream targets and causes TP53-dependent cell senescence. Int J Biochem Cell Biol 2016; 80:132-142. [PMID: 27702651 DOI: 10.1016/j.biocel.2016.09.029] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 07/24/2016] [Accepted: 09/30/2016] [Indexed: 02/05/2023]
Abstract
Microphthalmia-associated transcription factor (MITF) plays a crucial role in the melanogenesis and proliferation of melanocytes that is dependent on its abundance and modification. Here, we report that epidermal growth factor (EGF) induces senescence and cyclin-dependent kinase inhibitor 1A (CDKN1A) expression that is related to MITF. We found that MITF could bind TP53 to regulate CDKN1A. Furthermore, the interaction between MITF and TP53 is dependent on AKT activity. We found that AKT phosphorylates MITF at S510. Phosphorylated MITF S510 enhances its affinity to TP53 and promotes CDKN1A expression. Meanwhile, the unphosphorylative MITF promotes TYR expression. The levels of p-MITF-S510 are low in 90% human melanoma samples. Thus the level of p-MITF-S510 could be a possible diagnostic marker for melanoma. Our findings reveal a mechanism for regulating MITF functions in response to EGF stimulation and suggest a possible implementation for preventing the over proliferation of melanoma cells.
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Cao X, Ma F, Xu T, Wang J, Liu S, Li G, Su Q, Qiao Z, Na X. Transcriptomic analysis reveals key early events of narciclasine signaling in Arabidopsis root apex. PLANT CELL REPORTS 2016; 35:2381-2401. [PMID: 27562382 DOI: 10.1007/s00299-016-2042-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 08/16/2016] [Indexed: 05/27/2023]
Abstract
Histochemical staining and RNA-seq data demonstrated that the ROS- and plant hormone-regulated stress responses are the key early events of narciclasine signaling in Arabidopsis root cells. Narciclasine, an amaryllidaceae alkaloid isolated from Narcissus tazetta bulbs, employs a broad range of functions on plant development and growth. However, its molecular interactions that modulate these roles in plants are not fully understood. To elucidate the global responses of Arabidopsis roots to short-term narciclasine exposure, we first measured the accumulation of H2O2 and O2- with histochemical staining, and then profiled the gene expression pattern in Arabidopsis root tips treated with 0.5 µM narciclasine across different exposure times by RNA-seq. Physiological measurements showed a significant increase in H2O2 began at 30-60 min of narciclasine treatment and O2- accumulated by 120 min. Compared with controls, 236 genes were upregulated and 54 genes were downregulated with 2 h of narciclasine treatment, while 968 genes were upregulated and 835 genes were downregulated with 12 h of treatment. The Gene Ontology analysis revealed that the differentially expressed genes were highly enriched during oxidative stress, including those involved in the "regulation of transcription", "response to oxidative stress", "plant-pathogen interaction", "ribonucleotide binding", "plant cell wall organization", and "ribosome biogenesis". Moreover, Kyoto Encyclopedia of Genes and Genomes pathway enrichment statistics suggested that carbohydrate metabolism, amino acid metabolism, amino sugar and nucleotide sugar metabolism, and biosynthesis of phenylpropanoid and secondary metabolites were significantly inhibited by 12 h of narciclasine exposure. Hence, our results demonstrate that hormones and H2O2 are important regulators of narciclasine signaling and help to uncover the factors involved in the molecular interplay between narciclasine and phytohormones in Arabidopsis root cells.
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Su Q, Yu B, He H, Zhang Q, Meng G, Wu H, Du H, Liu L, Shi H, Xia Y, Guo X, Liu X, Li C, Bao X, Gu Y, Fang L, Yu F, Yang H, Sun S, Wang X, Zhou M, Jia Q, Zhao H, Song K, Niu K. NUT CONSUMPTION IS ASSOCIATED WITH DEPRESSIVE SYMPTOMS AMONG CHINESE ADULTS. Depress Anxiety 2016; 33:1065-1072. [PMID: 27097046 DOI: 10.1002/da.22516] [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: 09/16/2015] [Revised: 03/31/2016] [Accepted: 04/03/2016] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Affective disorders, especially depressive symptoms, bring such a burden to mortality and morbidity that they are associated with physical and psychological health and quality of life. Nuts, a foodstuff rich in multiple micronutrients, macronutrients, and other useful components, were considered to be a protector against depressive symptoms. Here, we conducted an analysis to examine the relationship between nut consumption and depressive symptoms. METHODS The study performed a cross-sectional study to examine whether nut consumption is related to depressive symptoms among 13,626 inhabitants in Tianjin. Nut consumption was assessed using a validated food frequency questionnaire and depressive symptoms was assessed using the Chinese version of 20-item Self-rating Depression Scale (SDS) with four cutoffs (40, 45, 48, and 50) to indicate elevated depressive symptoms. RESULTS The prevalence of depressive symptoms was 38.7, 19.1, 11.4, and 7.3% for SDS ≥40, 45, 48, and 50, respectively. After adjustments for potential confounding factors, the odds ratios (95% confidence interval) of having elevated depressive symptoms with SDS ≥40 by increasing frequency of nut consumption were 1.00 for <once per week (reference), 0.82 (0.75, 0.90) for 1-3 times per week, and 0.82 (0.73, 0.92) for ≥4 times per week. Similar relations were observed with the use of other cutoffs as a definition of depressive symptoms. CONCLUSION The present study is the first to find that nut consumption is independently associated with depressive symptoms. It is suggested that nut consumption may be beneficial to the prevention of depressive symptoms.
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Jia N, Sun Q, Su Q, Dang S, Chen G. Taurine promotes cognitive function in prenatally stressed juvenile rats via activating the Akt-CREB-PGC1α pathway. Redox Biol 2016; 10:179-190. [PMID: 27768969 PMCID: PMC5072153 DOI: 10.1016/j.redox.2016.10.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Revised: 10/08/2016] [Accepted: 10/11/2016] [Indexed: 12/28/2022] Open
Abstract
Substantial evidence has shown that the oxidative damage to hippocampal neurons is associated with the cognitive impairment induced by adverse stimuli during gestation named prenatal stress (PS). Taurine, a conditionally essential amino acid, possesses multiple roles in the brain as a neuromodulator or antioxidant. In this study, to explore the roles of taurine in PS-induced learning and memory impairment, prenatal restraint stress was set up and Morris water maze (MWM) was employed for testing the cognitive function in the one-month-old rat offspring. The mitochondrial reactive oxygen species (ROS) level,mitochondrial membrane potential (MMP), ATP and cytochrome c oxidase (CcO) activity and apoptosis-related proteins in the hippocampus were detected. The activity of the Akt-cyclic AMP response element-binding protein (CREB)-peroxisome proliferator-activated receptor–γ coactivator-1α (PGC1α) pathway in the hippocampus was measured. The results showed that high dosage of taurine administration in the early postnatal period attenuated impairment of spatial learning and memory induced by PS. Meanwhile, taurine administration diminished the increase in mitochondrial ROS, and recovered the reduction of MMP, ATP level and the activities of CcO, superoxide dismutase 2 (SOD2) and catalase induced by PS in the hippocampus. In addition, taurine administration recovered PS-suppressed SOD2 expression level. Taurine administration blocked PS-induced decrease in the ratio of Bcl-2/Bax and increase in the ratio of cleaved caspase-3/full-length caspase-3. Notably, taurine inhibited PS-decreased phosphorylation of Akt (pAkt) and phosphorylation of CREB (pCREB), which consequently enhanced the mRNA and protein levels of PGC1α. Taken together, these results suggest that high dosage of taurine administration during the early postnatal period can significantly improve the cognitive function in prenatally stressed juvenile rats via activating the Akt-CREB-PGC1α pathway. Therefore, taurine has therapeutic potential for prenatal stressed offspring rats in future. Taurine attenuates prenatal stress (PS)-induced cognitive impairment. Taurine reduces PS-induced neuronal apoptosis and mitochondrial dysfunction. Taurine maintains the activities of SOD2 and catalase to repress ROS. Taurine activates PS-suppressed Akt-CREB-PGC1α pathway.
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Xia Y, Gu Y, Yu F, Zhang Q, Liu L, Meng G, Wu H, Du H, Shi H, Guo X, Liu X, Li C, Han P, Dong R, Wang X, Bao X, Su Q, Fang L, Liu F, Yang H, Kang L, Ma Y, Yu B, Sun S, Wang X, Zhou M, Jia Q, Guo Q, Wu Y, Song K, Huang G, Wang G, Niu K. Association between dietary patterns and metabolic syndrome in Chinese adults: a propensity score-matched case-control study. Sci Rep 2016; 6:34748. [PMID: 27708414 PMCID: PMC5052517 DOI: 10.1038/srep34748] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 09/16/2016] [Indexed: 11/22/2022] Open
Abstract
Previous studies indicated that dietary patterns were associated with metabolic syndrome (MS), but little is known in Chinese. We design this case-control study to evaluate the associations between dietary patterns and MS in Chinese adults. In this study, 1492 participants with MS were matched with 1492 controls using the 1:1 ratio propensity score matching methods. Dietary intake was assessed using a valid self-administered food frequency questionnaire, and MS was defined in accordance with the criteria of the American Heart Association scientific statement of 2009. Higher scores for the high-protein/cholesterol pattern were associated with higher prevalence of MS. Compared with the participants in the lowest quartile, the odds ratio (OR) for the extreme quartile was 1.36 (95% confidence interval (CI), 1.10–1.68) and the P for trend <0.01 after adjusted for the other two dietary pattern scores. We also found a moderate consumption of the balanced pattern was associated with the lowest prevalence of MS. The ORs across quartiles of the balanced pattern were 1 (reference), 0.83 (95% CI, 0.68–1.02), 0.69 (95% CI, 0.56–0.85), and 0.84 (95% CI, 0.68–1.04) after adjustment. Our study demonstrates that there is a strong association between a diet rich in animal offal, animal blood, meat, and sausage and a higher prevalence of MS.
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Meng G, Wu H, Fang L, Li C, Yu F, Zhang Q, Liu L, Du H, Shi H, Xia Y, Guo X, Liu X, Bao X, Su Q, Gu Y, Yang H, Bin Yu, Wu Y, Sun Z, Niu K. Relationship between grip strength and newly diagnosed nonalcoholic fatty liver disease in a large-scale adult population. Sci Rep 2016; 6:33255. [PMID: 27616599 PMCID: PMC5018968 DOI: 10.1038/srep33255] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 08/24/2016] [Indexed: 12/16/2022] Open
Abstract
Enhanced muscle strength is often related to improved insulin sensitivity and secretion, control of lipid metabolism, and increased secretion of myokines. These factors have emerged as important mechanisms involved in the development and progression of nonalcoholic fatty liver disease (NAFLD), implying that muscle strength may be a useful predictor for NAFLD. We aimed to assess the relationship between grip strength (GS) and NAFLD in a large-scale adult population. GS was assessed using an electronic hand-grip dynamometer, and NAFLD was diagnosed by the liver ultrasonography. Multiple logistic regression analysis was used to assess the relationship between the quartiles of GS per body weight and the prevalence of NAFLD. After adjusting for potentially confounding factors, the odds ratios (95% confidence interval) for overall NAFLD, NAFLD with normal alanine aminotransferase levels, and NAFLD with elevated alanine aminotransferase levels across the quartiles of GS were 1.00 (reference), 0.89 (0.78, 1.01), 0.77 (0.67, 0.89), and 0.67 (0.57, 0.79); 1.00 (reference), 0.91 (0.80, 1.04), 0.79 (0.68, 0.92), and 0.72 (0.61, 0.85); 1.00 (reference), 0.77 (0.61, 0.98), 0.67 (0.51, 0.86), and 0.53 (0.40, 0.71) (all P for trend < 0.01), respectively. This is the first study shows that increased GS is independently associated with lower prevalence of NAFLD.
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Su Q, Gu Y, Yu B, Yu F, He H, Zhang Q, Meng G, Wu H, Du H, Liu L, Shi H, Xia Y, Guo X, Liu X, Li C, Bao X, Liu F, Fang L, Yang H, Sun S, Wang X, Zhou M, Jia Q, Zhao H, Song K, Niu K. Association between Serum Ferritin Concentrations and Depressive Symptoms among Chinese Adults: A Population Study from the Tianjin Chronic Low-Grade Systemic Inflammation and Health (TCLSIHealth) Cohort Study. PLoS One 2016; 11:e0162682. [PMID: 27611581 PMCID: PMC5017657 DOI: 10.1371/journal.pone.0162682] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 08/26/2016] [Indexed: 12/24/2022] Open
Abstract
Depressive symptoms have become the most important global public health issue. Iron plays an important role in brain function, cognition, and behavior, and its impacts on depressive symptoms may be multifactorial with both positive and negative effects. Previous observational studies focusing on the association between iron status and depressive symptoms showed inconsistent results. Ferritin is a ubiquitous intracellular protein that can store and release iron and is widely used as a clinical biomarker to evaluate iron status. We performed a cross-sectional study to examine the relationship between serum ferritin and depressive symptoms among 3,839 subjects who were from the Tianjin Chronic Low-grade Systemic Inflammation and Health (TCLSIHealth) cohort. Depressive symptoms were assessed using the Chinese version of 20-item self-rating Depression Scale (SDS) with 4 cutoffs (40, 45, 48 and 50) to indicate elevated depressive symptoms (40 was the primary cut-off). The prevalence of depressive symptoms was 36.5%, 17.6%, 11.0% and 7.0% for SDS ≥40, ≥45, ≥48 and ≥50, respectively. With the primary cut-off point of 40, multiple potential confounding factors were adjusted and the odds ratios (95% confidence interval) of having elevated depressive symptoms by quartiles of serum ferritin concentrations were 1.00 (reference), 1.10 (0.91, 1.34), 0.81 (0.66, 1.01) and 1.02 (0.81, 1.28) for the first, second, third and fourth quartile, respectively (P for trend = 0.76). Similar relations were observed with the use of other cut-offs as a definition of depressive symptoms. In conclusion, there is no significant relationship between serum ferritin concentrations and depressive symptoms among Chinese adults.
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Xia Y, Meng G, Zhang Q, Liu L, Wu H, Shi H, Bao X, Su Q, Gu Y, Fang L, Yu F, Yang H, Yu B, Sun S, Wang X, Zhou M, Jia Q, Zhao H, Song K, Niu K. Dietary Patterns are Associated with Helicobacter Pylori Infection in Chinese Adults: A Cross-Sectional Study. Sci Rep 2016; 6:32334. [PMID: 27573193 PMCID: PMC5004161 DOI: 10.1038/srep32334] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Accepted: 08/03/2016] [Indexed: 12/14/2022] Open
Abstract
Previous studies indicated that food consumption was associated with Helicobacter pylori infection, but no study has yet investigated the association between Helicobacter pylori infection and dietary patterns. The aim of this study was to evaluate the associations between Helicobacter pylori infection and dietary patterns in Tianjin, China. The final cross-sectional study population comprised 10407 participants. Dietary consumption of participants was assessed via food frequency questionnaire. Factor analysis was used to identify dietary patterns, and Helicobacter pylori infection status was diagnosis by H. pylori urease Immunogold Testing kit. Participants in the highest quartile of the high-carbohydrate/sweet pattern showed a multivariable-adjusted OR (95% CI) of 1.65 (1.27–2.17) for the prevalence of H. pylori infection compared with those in the lowest quartile. The multiple adjusted OR for scores of the extreme quartile of high-protein/cholesterol pattern was 0.75 (95% CI, 0.57–0.98). This study demonstrated that a diet rich in carbohydrates and sweets was positively associated with the prevalence of H. pylori infection; interestingly, a diet characterized by high intake of animal offal, animal blood, fish, seafood, and poultry was associated with a reduction of prevalence of H. pylori infection.
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Jia N, Sun Q, Su Q, Chen G. SIRT1-mediated deacetylation of PGC1α attributes to the protection of curcumin against glutamate excitotoxicity in cortical neurons. Biochem Biophys Res Commun 2016; 478:1376-81. [PMID: 27568287 DOI: 10.1016/j.bbrc.2016.08.132] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 08/23/2016] [Indexed: 12/19/2022]
Abstract
It is widely accepted that accumulation of extracellular glutamate mediates neuronal injuries in a number of neurological disorders via binding glutamate receptors. However, usage of the glutamate receptor antagonists aimed to prevent glutamate excitotoxicity is still controversial. As a polyphenol natural product, curcumin, has been implied multiple bioactivities. In this study, we explored whether the silent information regulator 1 (SIRT1)-peroxisome proliferator-activated receptor-coactivator 1α (PGC1α) pathway participated in the protection of curcumin against glutamate excitotoxicity. The cultured primary cortical neurons were treated with glutamate to set up a neuronal excitotoxicity model. The MTT and TUNEL methods were employed to measure cell viability and apoptosis, respectively. The mitochondrial function, the expression levels of SIRT1, PGC1α and acetylated PGC1α (ac-PGC1α) were measured to explore the mechanism of curcumin against glutamate excitotoxicity. The results showed that glutamate significantly induced cell death and apoptosis, which was blocked by pretreatment with curcumin. Meanwhile, curcumin preserved mitochondrial function, increased the expression level of SIRT1 and reduced the level of ac-PGC1α in the presence of glutamate. These results suggest that SIRT1-mediated deacetylation of PGC1α attributes to the neuroprotection of curcumin against glutamate excitotoxicity.
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Xia Y, Wang N, Yu B, Zhang Q, Liu L, Meng G, Wu H, Du H, Shi H, Guo X, Liu X, Li C, Han P, Dong R, Wang X, Bao X, Su Q, Gu Y, Fang L, Yu F, Yang H, Kang L, Ma Y, Sun S, Wang X, Zhou M, Jia Q, Guo Q, Wu Y, Song K, Niu K. Dietary patterns are associated with depressive symptoms among Chinese adults: a case–control study with propensity score matching. Eur J Nutr 2016; 56:2577-2587. [DOI: 10.1007/s00394-016-1293-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 08/11/2016] [Indexed: 12/13/2022]
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Zhang Q, Bao X, Meng G, Liu L, Wu H, Du H, Shi H, Xia Y, Guo X, Liu X, Li C, Su Q, Gu Y, Fang L, Yu F, Yang H, Yu B, Sun S, Wang X, Zhou M, Jia Q, Zhao H, Huang G, Song K, Niu K. The predictive value of mean serum uric acid levels for developing prediabetes. Diabetes Res Clin Pract 2016; 118:79-89. [PMID: 27351798 DOI: 10.1016/j.diabres.2016.06.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 05/05/2016] [Accepted: 06/06/2016] [Indexed: 12/11/2022]
Abstract
AIMS We aimed to assess the predictive value of mean serum uric acid (SUA) levels for incident prediabetes. METHODS Normoglycemic adults (n=39,353) were followed for a median of 3.0years. Prediabetes is defined as impaired fasting glucose (IFG), impaired glucose tolerance (IGT), or impaired HbA1c (IA1c), based on the American Diabetes Association criteria. Serum SUA levels were measured annually. Four diagnostic strategies were used to detect prediabetes in four separate analyses (Analysis 1: IFG. Analysis 2: IFG+IGT. Analysis 3: IFG+IA1c. Analysis 4: IFG+IGT+IA1c). Cox proportional hazards regression models were used to assess the relationship between SUA quintiles and prediabetes. C-statistic was additionally used in the final analysis to assess the accuracy of predictions based upon baseline SUA and mean SUA, respectively. RESULTS After adjustment for potential confounders, the hazard ratios (95% confidence interval) of prediabetes for the highest versus lowest quintile of mean SUA were 1.22 (1.10, 1.36) in analysis 1; 1.59 (1.23, 2.05) in analysis 2; 1.62 (1.34, 1.95) in analysis 3 and 1.67 (1.31, 2.13) in analysis 4. In contrast, for baseline SUA, significance was only reached in analyses 3 and 4. Moreover, compared with baseline SUA, mean SUA value was associated with a significant increase in the C-statistic (P<0.001). CONCLUSIONS Mean SUA value was strongly and positively related to prediabetes risk, and showed better predictive ability for prediabetes than baseline SUA.
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Li L, Su Q, Xie B, Duan L, Zhao W, Hu D, Wu R, Liu H. Gut microbes in correlation with mood: case study in a closed experimental human life support system. Neurogastroenterol Motil 2016; 28:1233-40. [PMID: 27027909 DOI: 10.1111/nmo.12822] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 02/22/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND Gut microbial community, which may influence our mood, can be shaped by modulating the gut ecosystem through dietary strategies. Understanding the gut-brain correlationship in healthy people is important for maintenance of mental health and prevention of mental illnesses. METHODS A case study on the correlation between gut microbial alternation and mood swing of healthy adults was conducted in a closed human life support system during a 105-day experiment. Gut microbial community structures were analyzed using high-throughput sequencing every 2 weeks. A profile of mood states questionnaire was used to record the mood swings. Correlation between gut microbes and mood were identified with partial least squares discrimination analysis. KEY RESULTS Microbial community structures in the three healthy adults were strongly correlated with mood states. Bacterial genera Roseburia, Phascolarctobacterium, Lachnospira, and Prevotella had potential positive correlation with positive mood, while genera Faecalibacterium, Bifidobacterium, Bacteroides, Parabacteroides, and Anaerostipes were correlated with negative mood. Among which, Faecalibacterium spp. had the highest abundance, and showed a significant negative correlation with mood. CONCLUSIONS & INFERENCES Our results indicated that the composition of microbial community could play a role in emotional change in mentally physically healthy adults.
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Pan WQ, He YH, Su Q, Yang J, Fang YH, Ding FH, Yan XX, Liu ZH, Wang XQ, Yang K, Zhang RY, Shen WF, Zhang FR, Lu L. Association of decreased serum vasostatin-2 level with ischemic chronic heart failure and with MACE in 3-year follow-up: Vasostatin-2 prevents heart failure in myocardial infarction rats. Int J Cardiol 2016; 221:1-11. [PMID: 27395818 DOI: 10.1016/j.ijcard.2016.06.065] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 06/19/2016] [Indexed: 11/17/2022]
Abstract
BACKGROUND We investigated whether serum vasostatin-2 level is related to chronic heart failure (CHF) in patients with previous myocardial infarction (MI) and MACE in 3-year follow-up. The biological effect of vasostatin-2 on ischemic HF was evaluated in animal experiments. METHODS After exclusion of the subjects not eligible, this study included 450 patients with CHF and previous MI, and 149 healthy controls. Serum vasostatin-2 level was analyzed. CHF patients were followed up for three years and major adverse cardiac events (MACE) were recorded, defined as reinfarction, target-vessel revascularization, cardiovascular death and refractory HF requiring hospitalizations. RESULTS Notably, serum vasostatin-2 level was decreased in CHF patients than in controls, and significant difference was observed between CHF patients with MACE and those without (both P<0.05). Vasostatin-2 level was correlated with HF stages (Spearman's r=-0.288, P<0.05), LVEF (r=0.377, P<0.05) and pro-BNP level (r=-0.294, P<0.05). Multivariable logistic regression analysis suggested that vasostatin-2, conventional risk factors, severity of HF stages and LVEF were independently associated with MACE in CHF patients. Vasostatin-2 (100μg) or PBS was injected intraperitoneally every other day in MI rats, follow by echocardiography, hemodynamic analysis after 2months. Compared with PBS, vasostatin-2 treatment prevented ischemic HF in MI rats, accompanied with reduction of infarct size, remodeling, fibrosis and inflammation, mainly through inhibition of Rho, Wnt and TLR-4 pathways and modulation of renin-angiotensin system. CONCLUSION Decreased serum vasostatin-2 level is associated with ischemic CHF and with MACE in three-year follow-up. Intraperitoneal injection of vasostatin-2 protects against ischemic HF in MI rats.
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Guo X, Meng G, Liu F, Zhang Q, Liu L, Wu H, Du H, Shi H, Xia Y, Liu X, Li C, Bao X, Su Q, Gu Y, Fang L, Yu F, Yang H, Yu B, Sun S, Wang X, Zhou M, Jia Q, Chen X, Huang G, Song K, Niu K. Serum levels of immunoglobulins in an adult population and their relationship with type 2 diabetes. Diabetes Res Clin Pract 2016; 115:76-82. [PMID: 27242126 DOI: 10.1016/j.diabres.2016.03.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 01/29/2016] [Accepted: 03/04/2016] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Some studies have found patients with diabetes had an impaired humoral immune response. Immunoglobulins provide key information on the humoral immune status. But few population-based studies comprehensively estimated the serum immunoglobulins concentration in type 2 diabetes (T2D). So we design a cross-sectional study to investigate the relationships between immunoglobulin levels and prevalence of T2D in a large-scale adult population. METHODS A cross-sectional assessment was performed in 10,691 participants living in Tianjin, China. Type 2 diabetes was defined in accordance with the criteria of the world health organization, and serum levels of immunoglobulins were determined by the immunonephelometric technique. Adjusted logistic models were used to assess relationships between the quintiles of immunoglobulins concentration and the prevalence of T2D. RESULTS In this study, the prevalence of T2D was 11.7%, and the means (standard deviation) of immunoglobulins (IgG, IgE, IgM, IgA) were 1192.3 (241.1)mg/dL, 92.3 (234.6)IU/mL, 104.8 (55.8)mg/dL, 234.1 (96.2)mg/dL, respectively. The adjusted odds ratio (95% confidence interval) of T2D for the highest immunoglobulins (IgG, IgE, IgM, IgA) quintile, when compared to the lowest quintile were 0.64 (0.52, 0.78), 1.00 (0.81, 1.22), 0.77 (0.62, 0.95) and 1.57 (1.29, 1.92), respectively. CONCLUSIONS Decreased IgG and IgM, and increased IgA levels were independently related to the prevalence of T2D among the adult population. Our findings indicate that the immunoglobulins might useful predictive factors for T2D in the general adult population. Further studies are needed to explore the causality and exact mechanisms of immunoglobulins in T2D.
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Bao X, Xia Y, Zhang Q, Wu HM, Du HM, Liu L, Wang CJ, Shi HB, Guo XY, Liu X, Li CL, Su Q, Meng G, Yu B, Sun SM, Wang X, Zhou M, Jia QY, Song K, Niu KJ. Elevated serum complement C3 levels are related to the development of prediabetes in an adult population: the Tianjin Chronic Low-Grade Systematic Inflammation and Health Cohort Study. Diabet Med 2016; 33:446-53. [PMID: 26043071 DOI: 10.1111/dme.12827] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/01/2015] [Indexed: 01/05/2023]
Abstract
AIMS To investigate whether serum complement C3 is related to the prevalence and incidence of prediabetes in an adult population. METHODS A cross-sectional (n = 10 206) and prospective cohort study (n = 3333), with a mean (range; 95% CI) follow-up of 2.63 (1-6; 2.58-2.68) years, was conducted in people recruited from the Health Management Centre of Tianjin Medical University General Hospital in Tianjin, China. Measurement of serum C3 concentration, blood fasting glucose, oral glucose tolerance, HbA1c and other potential confounding factors was performed at baseline and each year during the follow-up. Prediabetes was defined according to the criteria of the American Diabetes Association. Adjusted logistic and Cox proportional hazards regression models were used to assess the relationships between C3 quintiles and prediabetes. RESULTS The prevalence and incidence of prediabetes were 38.5% and 119 per 1000 person-years, respectively. In cross-sectional analysis, after adjustment for potential confounders, the odds ratios of prediabetes for increasing quintiles of C3 were 1.00 (reference), 1.32 (95% CI 1.14-1.53), 1.37 (95% CI 1.18-1.59), 1.75 (95% CI 1.51-2.03), 2.25 (95% CI 1.93-2.62; P for trend < 0.0001). In the cohort analysis, the multiple-adjusted hazard ratio of prediabetes in the highest quintile of baseline C3 was 1.43 (95% CI 1.15, 1.78; P for trend < 0.001), when compared with the lowest quintile. CONCLUSIONS These findings indicate that elevated serum C3 levels are significantly related to an increased risk of developing prediabetes in an adult population, suggesting that C3 can be used as a biomarker in high-risk individuals to improve primary prevention of prediabetes and diabetes.
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Ji L, Su Q, Feng B, Shan Z, Hu R, Xing X, Xue Y. Glycemic control and self-monitoring of blood glucose in Chinese patients with type 2 diabetes on insulin: Baseline results from the COMPASS study. Diabetes Res Clin Pract 2016; 112:82-87. [PMID: 26775249 DOI: 10.1016/j.diabres.2015.08.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 08/10/2015] [Accepted: 08/18/2015] [Indexed: 12/21/2022]
Abstract
AIMS Self monitoring of blood glucose (SMBG) is not widely utilized in insulin-treated patients with type 2 diabetes. In this analysis, we evaluated the current state of SMBG in Chinese adults with type 2 diabetes treated with insulin. METHODS The 2-phase COMPASS study involved 24 centers across 10 provinces and cities in China. In the first phase, a cross sectional survey was carried out in type 2 diabetes patients receiving insulin treatment. The inclusion criteria for the study subjects in the first phase were: type 2 diabetes, insulin treatment for ≥ 3 months, and age ≥ 18 years. Evaluation was made on the status of SMBG and insulin therapy in these patients by a questionnaire. RESULTS A total of 2819 patients (age 58.2 ± 10.8 years; 49.6% females; BMI 24.6 ± 3.4 kg/m(2)) with insulin-treated type 2 diabetes were recruited in phase I of this study. The majority of patients (80.4%) were receiving insulin treatment for at least 6 months. At baseline, the mean HbA1c was 8.5 ± 1.9% and 54.6% of patients had an HbA1c above 8%. 50.4% of the cohort had diabetes for at least 10 years, and fewer of these patients achieved HbA1c <7.0% (53 mmol/mol). At baseline, 65.8% of patients reported that daily SMBG frequency was performed on a random basis. 59.2% of patients reported that they occasionally, rarely or never follow their physician's instructions regarding SMBG. Hypoglycemia occurred in over 50% of patients, although in 71.8% of patients this was a rare occurrence. CONCLUSIONS There is low utilization of SMBG in Chinese adults with insulin-treated type 2 diabetes, with approximately two-thirds of patients reporting irregular use of SMBG. This is in line with an overall poor level of glycemic control.
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Gao L, Ji L, Su Q, Feng B, Shan Z, Hu R, Xing X, Xue Y. Impact of structured self-monitoring of blood glucose on the quality of life of insulin-treated Chinese patients with type 2 diabetes mellitus: Results from the COMPASS study. Diabetes Res Clin Pract 2016; 112:88-93. [PMID: 26774907 DOI: 10.1016/j.diabres.2015.08.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 06/13/2015] [Accepted: 08/07/2015] [Indexed: 11/22/2022]
Abstract
AIMS To evaluate the effect of structured self-monitoring of blood glucose (SMBG) regimen on quality of life (QoL) in poorly controlled insulin-treated patients with type 2 diabetes. METHODS Phase II of the COMPASS trial was a 6-month, multicenter, prospective, single-arm, interventional study. This study recruited 820 outpatients from 19 clinical sites in China who met the following inclusion criteria: type 2 diabetes, insulin treatment for ≥ 3 months, and age 18-65 years, an HbA1c >8.0% (64 mmol/mol), and willingness to perform SMBG. Subjects were advised to follow a structured SMBG regimen specific to their insulin regimen, and were trained to respond to SMBG readings via lifestyle changes and insulin dose self-adjustment. QoL assessments (SF-36) were performed at baseline and 6 months. RESULTS Patients with a mean age of 55.13 ± 9.77 years had an average diabetes duration of 9.83 ± 7.05 years and had been receiving insulin therapy for a mean of 45.4 ± 46.79 months. All QoL parameters were significantly improved following structured SMBG after 6 months, most notably the physical role functioning (p<0.0001) and emotional role functioning (p<0.0001) component scores. Overall, 40.6% of patients rated their overall QoL as 'a bit' or a lot better' after structured SMBG compared with 16.5% prior to the intervention (p<0.0001). SMBG also improved overall feelings of wellbeing, with 39.13% of patients believing that their health was deteriorating prior to SMBG compared with only 14.4% of patients after the intervention (p<0.0001). CONCLUSIONS The structured SMBG program in insulin-treated Chinese outpatients with type 2 diabetes significantly improved QoL outcomes. Physical and emotional role functioning are the 2 QoL scales that demonstrate the largest improvement with SMBG.
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Yao Y, Gu LL, Jiang W, Sun HC, Su Q, Zhao J, Ji WJ, Au CT. Enhanced low temperature CO oxidation by pretreatment: specialty of the Au–Co3O4 oxide interfacial structures. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01351h] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The enhanced CO oxidation by Au deposition and particularly He- and in situ-pretreatments was elucidated in light of the structural specialties associated with the facets of Co3O4 substrates and the corresponding Au–Co3O4 interfaces.
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Meng F, Liu Y, Xue T, Su Q, Wang W, Qi T. Structures, formation mechanisms, and ion-exchange properties of α-, β-, and γ-Na2TiO3. RSC Adv 2016. [DOI: 10.1039/c6ra16984h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The structure of β-Na2TiO3 was refined. The formation/transformation mechanisms and ion-exchange properties of α-, β-, and γ-Na2TiO3 were investigated.
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Wu H, Wei M, Zhang Q, Du H, Xia Y, Liu L, Wang C, Shi H, Guo X, Liu X, Li C, Bao X, Su Q, Gu Y, Fang L, Yang H, Yu F, Sun S, Wang X, Zhou M, Jia Q, Zhao H, Song K, Niu K. Consumption of Chilies, but not Sweet Peppers, Is Positively Related to Handgrip Strength in an Adult Population. J Nutr Health Aging 2016; 20:546-52. [PMID: 27102794 DOI: 10.1007/s12603-015-0628-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND Chili consumption may have a beneficial effect on muscle strength in the general population. The aim of this study was to investigate the relationship between frequency of chili consumption and handgrip strength in adults. DESIGN Population-based cross-sectional study. SETTING This study used baseline data from the Tianjin Chronic Low-grade Systemic Inflammation and Health Cohort Study. PARTICIPANTS A total of 3 717 subjects were recruited to the study. Frequency of chili consumption during the previous month was assessed using a valid self-administered food frequency questionnaire. Analysis of covariance was used to examine the relationship between muscle strength and frequency of chili consumption. Handgrip strength was measured using a handheld digital dynamometer. RESULTS After adjustment for potential confounding factors, significant relationships were observed between different categories of chili consumption and handgrip strength in males, the means (95% confidence interval) for handgrip strength across chili consumption categories were 44.7 (42.1, 47.2) for < one time/week; 45.5 (42.9, 48.1) for one time/week; and 45.8 (43.3, 48.4) for ≥ 2-3 times/week (P for trend < 0.01). Similar results were not observed with sweet pepper consumption. CONCLUSIONS This study reveals a positive correlation between frequency of chili consumption and muscle strength in adult males. Further studies are necessary in order to determine whether there is a causal relationship between chili consumption frequency and muscle strength.
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Su Q, Zhang H, Zhang Y, Zhang H, Ding D, Zeng J, Zhu Z, Li H. Maternal Stress in Gestation: Birth Outcomes and Stress-Related Hormone Response of the Neonates. Pediatr Neonatol 2015; 56:376-81. [PMID: 26363772 DOI: 10.1016/j.pedneo.2015.02.002] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 01/24/2015] [Accepted: 02/24/2015] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Relatively few studies have been made on neurobehavioral outcomes of prenatal maternal stress during the newborn period, and little research has focused on umbilical cord stress hormones including cortisol, adrenocorticotropic hormone (ACTH), norepinephrine, and epinephrine. Our objective was to investigate the effects of prenatal maternal life stressors on neonatal birth outcomes, neurobehavioral development, and stress-related hormones levels. METHODS Participants were 142 mothers and their infants; 71 were selected as the prenatal life stressor exposed group and 71 as the control group matched on maternal age, gestational week, delivery type, socioeconomic and education status, and newborns' sex. Maternal life stressors during pregnancy were determined using the Life Events Scale for Pregnant Women. Neonatal neurobehavioral development was assessed with the Neonatal Behavioral Neurological Assessment. Umbilical cord plasma stress-related hormones, including ACTH, cortisol, norepinephrine, and epinephrine were measured using an enzyme-linked immunosorbent assay. RESULTS In the prenatal life stressors exposed group, newborns had significantly lower birth weight, smaller head circumference (p < 0.01, p < 0.01, respectively). Scores of Neonatal Behavioral Neurological Assessment were significantly reduced (p < 0.001). Cord plasma ACTH, norepinephrine, and epinephrine levels were significantly increased (p < 0.001), but cortisol levels were reduced (p < 0.001). CONCLUSION Prenatal maternal stress may negatively affect fetal birth outcomes, neurobehavioral development and affect neonates' cord plasma ACTH, cortisol, norepinephrine, and epinephrine.
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