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Repeated measurement of growth-differentiation factor-15in Chinese Han patients with post-myocardial infarction chronic heart failure

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Journal of Geriatric Cardiology 2018年第10期15卷 618-627页

作者： Ji-Xuan LIU Yan-Ping LI Bo-Han LIU Xiao-Jing ZHAO Ze-Yu ZHANG Jin-Da WANG Qian JIA Chun-Lei LIU Xiao-Jian GAO Zhen-Guo XU Hua-Wei ZHANG Lin-Nan SONG Zhi-Jun SUN Kun-Lun HE Beijing Key Laboratory of Chronic Heart Failure Precision Medicine Chinese PLA General HospitalBeijingChina Transformation Medicine Centre Chinese PLA GeneraI HospitalBeijingChina Department of Cardiovascular Chinese PLA General HospitalBeijingChina Department of Geriatric Cardiology Chinese PLA General HospitalBeijingChina Outpatient Department of North China Military Materials Procurement Bureau TianjinChina Queen Mary College of Nanchang University NanchangChina

Background growth-differentiation factor-15(GDF-15)is a promising prognostic biomarker in patients with chronic heart failure (CHF).Comparatively little is known about the value of repeated measurement of GDF-15with CI-IF in Chinese Han *** study sought to identify the clinical value of repeated measurement of GDF-15in Chinese Han patients with post-myocardial infarction CHF. Methods In total,232consecutive Chinese Hart patients with post-myocardial infarction CHF were enrolled prospectively from January 2014to June *** plasma concentration of GDF-15was determined on admission and over *** were followed up for all-cause death and a composite outcome of major adverse cardiac events (MACE)included all-cause death,myocardial infarction and first heart failure (HF)*** with other clinical variables and adverse outcomes of repeated measurement of GDF-15 was *** The median baseline GDF-15level was 2025ng/*** GDF-15was moderately associated with baseline N-terminal pro-B type nalriuretic peptide (NT-proBNP)(coefficient 0.561,P <0.001).During a median follow-up of 20months,there were 53deaths and ***-I5remained an independent predictor of all-cause death (adjusted hazard ratio 1.826per 1Ln U,95%CI: 1.037-8.360;P =0.037)and MACE (adjusted hazard ratio 2.243per I Ln U,95%CI:1.181-1.775;P <0.001)adjusted for established risk *** measurement of GDF-15was performed in 173survivals over *** of GDF-15over 12months was associ- ated with dilatation of left ventricle and acted as an independent predictor of subsequent all-canse death (adjusted HR =3.164,95%CI: 1.245~.041;P =0.015).In the joint model,GDF-15was also shown to be a risk factor for all-cause death (HR =2.749,95%CI: 1.667-3.831;P <0.001)and MACE (FIR =2.434,95%CI:1.425-3.443;P <0.001).Conclusions Repeated measurements of GDF-15 have promising prognostic value of the risk of all-cause death in Chinese Han patients

关键词： Chronic heart failure growth-differentiation factor-15 Left ventricular remodeling Myocardial infarction Prognosis

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Maternal Environment Effects on Phenolic Defenses in <i>Abutilon theophrasti</i>Seeds

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American Journal of Plant Sciences 2013年第5期4卷 1127-1133页

作者： Brian J. Schutte Sam E. Wortman John L. Lindquist Adam S. Davis Department of Agronomy and Horticulture University of Nebraska Lincoln USA Department of Crop Sciences University of Illinois Urbana USA Department of Entomology Plant Pathology & Weed Science New Mexico State University Las Cruces USA United States Department of Agriculture-Agricultural Research Service (USDA-ARS) Global Change and Photosynthesis Research Unit Urbana USA.

A class of phenolic compounds, ortho-dihydroxyphenols (hereafter “o-DHP”), has been implicated with seed survival. Based on expectations of the growth-differentiation balance hypothesis, we predicted that seed o-DHP concentration exhibits a curvilinear response to increasing resource availability in the maternal environment, with maximum o-DHP occurring at moderate resource levels. To test this hypothesis, Abutilon theophrasti seeds were produced under field conditions at two locations. Each location included twelve maternal environments established through factorial combinations of soil compost (+/-), species assemblage (A. theophrasti with and without maize), and soil nitrogen fertilizer (0, 0.5× or 1× local recommendations for maize). Resource availability with respect to A. theophrasti growth was summarized by above-ground biomass at seed harvest (maternal biomass). Results indicated that seed o-DHP concentrations increased then decreased in response to increasing maternal biomass. This relationship was modeled with a unimodal function specific to location (Location 1, y = 1.18 + 0.03xe-0.02x, pseudo-R2 = 0.59, p = 0.003;Location 2, y = 1.40 + 0.006xe-0.005x;pseudo-R2 = 0.34, p = 0.05). Seed protein concentrations remained constant across maternal biomass levels. Because inherent vulnerability to predation and decay is considered a consequence of chemical protection relative to nutritional offering, our results suggest that A. theophrasti seed susceptibility to lethal attack is influenced by resource levels in the maternal environment. More broadly, our results suggest that the growth-differentiation balance hypothesis can be extended to maternal effects on seed phenolics.

关键词： Environmental Maternal Effect growth-differentiation Balance Hypothesis ortho-Dihydroxyphenols Seed Defense Seed Protein

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