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https://www.readbyqxmd.com/read/27913877/oxidative-stress-in-drug-na%C3%A3-ve-first-episode-patients-with-schizophrenia-and-major-depression-effects-of-disease-acuity-and-potential-confounders
#1
Wolfgang Jordan, Henrik Dobrowolny, Sabine Bahn, Hans-Gert Bernstein, Tanja Brigadski, Thomas Frodl, Berend Isermann, Volkmar Lessmann, Jürgen Pilz, Andrea Rodenbeck, Kolja Schiltz, Edzard Schwedhelm, Hayrettin Tumani, Jens Wiltfang, Paul C Guest, Johann Steiner
Oxidative stress and immune dysregulation have been linked to schizophrenia and depression. However, it is unknown whether these factors are related to the pathophysiology or whether they are an epiphenomenon. Inconsistent oxidative stress-related findings in previous studies may have resulted from the use of different biomarkers which show disparate aspects of oxidative stress. Additionally, disease severity, medication, smoking, endocrine stress axis activation and obesity are potential confounders. In order to address some of these shortcomings, we have analyzed a broader set of oxidative stress biomarkers in our exploratory study, including urinary 8-iso-prostaglandin F2α (8-iso-PGF2α), 8-OH-2-deoyxguanosine (8-OH-2-dG), and blood levels of malondialdehyde (MDA), superoxide dismutase (SOD) and glutathione S-transferase (GST) in acutely ill drug-naïve first episode patients with schizophrenia (n = 22), major depression (n = 18), and controls (n = 43)...
December 2, 2016: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/27913848/increased-fetal-adiposity-prior-to-diagnosis-of-gestational-diabetes-in-south-asians-more-evidence-for-the-thin-fat-baby
#2
Hema Venkataraman, Uma Ram, Sam Craik, Anuradhai Arungunasekaran, Suresh Seshadri, Ponnusamy Saravanan
AIMS/HYPOTHESIS: Gestational diabetes mellitus (GDM) is associated with an increased future risk of obesity in the offspring. Increased adiposity has been observed in the newborns of women with GDM. Our aim was to examine early fetal adiposity in women with GDM. METHODS: Obstetric and sonographic data was collated for 153 women with GDM and 178 controls from a single centre in Chennai, India. Fetal head circumference (HC), abdominal circumference (AC), femur length (FL) and biparietal diameter (BPD) were recorded at 11, 20 and 32 weeks...
December 2, 2016: Diabetologia
https://www.readbyqxmd.com/read/27911909/early-onset-paternal-smoking-and-offspring-adiposity-further-investigation-of-a-potential-intergenerational-effect-using-the-hunt-study
#3
David Carslake, Pia R Pinger, Pål Romundstad, George Davey Smith
Recently it has been suggested that rearing conditions during preadolescence in one generation may affect health outcomes in subsequent generations. Such parental effects, potentially induced by epigenetic modifications in the germ line, have attracted considerable attention because of their implications for public health and social policies. Yet, to date, evidence in humans has been rare due to data limitations and much further investigation in large studies is required. The aim of this paper is to reproduce and extend a recent study which found that paternal smoking before age 11 was associated with elevated body mass index (BMI) among male offspring in the Avon Longitudinal Study of Parents and Children (ALSPAC)...
2016: PloS One
https://www.readbyqxmd.com/read/27911443/transient-mitochondrial-dna-double-strand-breaks-in-mice-cause-accelerated-aging-phenotypes-in-a-ros-dependent-but-p53-p21-independent-manner
#4
Milena Pinto, Alicia M Pickrell, Xiao Wang, Sandra R Bacman, Aixin Yu, Aline Hida, Lloye M Dillon, Paul D Morton, Thomas R Malek, Siôn L Williams, Carlos T Moraes
We observed that the transient induction of mtDNA double strand breaks (DSBs) in cultured cells led to activation of cell cycle arrest proteins (p21/p53 pathway) and decreased cell growth, mediated through reactive oxygen species (ROS). To investigate this process in vivo we developed a mouse model where we could transiently induce mtDNA DSBs ubiquitously. This transient mtDNA damage in mice caused an accelerated aging phenotype, preferentially affecting proliferating tissues. One of the earliest phenotypes was accelerated thymus shrinkage by apoptosis and differentiation into adipose tissue, mimicking age-related thymic involution...
December 2, 2016: Cell Death and Differentiation
https://www.readbyqxmd.com/read/27911095/epigenetic-alterations-in-blood-mirror-age-associated-dna-methylation-and-gene-expression-changes-in-human-liver
#5
Madhusudhan Bysani, Alexander Perfilyev, Vanessa D de Mello, Tina Rönn, Emma Nilsson, Jussi Pihlajamäki, Charlotte Ling
AIM: To study the impact of aging on DNA methylation and mRNA expression in human liver. EXPERIMENTAL PROCEDURES: We analysed genome-wide DNA methylation and gene expression in human liver samples using Illumina 450K and HumanHT12 expression BeadChip arrays. RESULTS: DNA methylation analysis of ∼455,000 CpG sites in human liver revealed that age was significantly associated with altered DNA methylation of 20,396 CpG sites. Comparison of liver methylation data with published methylation data in other tissues showed that vast majority of the age-associated significant CpG sites overlapped between liver and blood, whereas a smaller overlap was found between liver and pancreatic islets or adipose tissue, respectively...
December 2, 2016: Epigenomics
https://www.readbyqxmd.com/read/27910111/cystatin-c-and-epicardial-adipose-tissue-as-noninvasive-predictors-of-cardiovascular-risk-in-acromegaly
#6
Anna Aulinas, Iris Crespo, David Viladés, Ruben Leta, Eulàlia Urgell, Betina Biagetti, Susan M Webb, Elena Valassi
BACKGROUND: Acromegaly (ACRO) is associated with elevated cardiovascular risk, although the prevalence of coronary artery disease (CAD) is unclear. Increased epicardial adipose tissue (EAT) and elevated cystatin-C (Cys-C) levels are cardiovascular risk factors, also related to the progression of CAD in several populations. AIMS: To measure the severity and extent of CAD in patients with ACRO and to determine whether either EAT or Cys-C reflect higher cardiovascular risk in patients with ACRO than in healthy controls...
November 7, 2016: Clinical Endocrinology
https://www.readbyqxmd.com/read/27908782/adaptive-responses-of-neuronal-mitochondria-to-bioenergetic-challenges-roles-in-neuroplasticity-and-disease-resistance
#7
REVIEW
Sophia M Raefsky, Mark P Mattson
An important concept in neurobiology is "neurons that fire together, wire together" which means that the formation and maintenance of synapses is promoted by activation of those synapses. Very similar to the effects of the stress of exercise on muscle cells, emerging findings suggest that neurons respond to activity by activating signaling pathways (e.g., Ca(2+), CREB, PGC-1α, NF-κB) that stimulate mitochondrial biogenesis and cellular stress resistance. These pathways are also activated by aerobic exercise and food deprivation, two bioenergetic challenges of fundamental importance in the evolution of the brains of all mammals, including humans...
November 28, 2016: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/27906582/fiat-deletion-increases-bone-mass-but-does-not-prevent-high-fat-diet-induced-metabolic-complications
#8
Bahareh Hekmatnejad, Vionnie W C Yu, William Addison, Vice Mandic, Martin Pellicelli, Alice Arabian, René St-Arnaud
FIAT (Factor Inhibiting ATF4-mediated Transcription) interacts with ATF4 to repress its transcriptional activity. We performed a phenotypic analysis of Fiat-deficient male mice (Fiat(-/Y)) at 8 and 16 weeks of age. Fiat(-/Y) mice appeared normal at birth and weight gain was comparable between genotypes. μCT analysis of proximal femur demonstrated 46% and 13% age-dependent increases in trabecular bone volume and thickness, respectively, in Fiat(-/Y) mice. Cortical bone measurements at the femoral midshaft revealed a significant increase in cortical thickness in older Fiat(-/Y) mice...
December 1, 2016: Endocrinology
https://www.readbyqxmd.com/read/27905876/age-and-sex-specific-associations-of-anthropometric-measures-of-adiposity-with-blood-pressure-and-hypertension-in-india-a-cross-sectional-study
#9
Kevin Y Taing, Michael E Farkouh, Rahim Moineddin, Jack V Tu, Prabhat Jha
BACKGROUND: A determinant of blood pressure is adiposity; however, there are uncertainties surrounding whether general or central adiposity is the more important determinant of blood pressure. Further, inconsistent results exist for the relationships of anthropometric measures with blood pressure and hypertension, and whether these relationships differ substantially by age and sex is unclear. We aimed to elucidate the associations of anthropometric measures of general and central adiposity with blood pressure and hypertension, and determine the effect of age and sex on these relationships...
December 1, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27904026/inverse-relationship-between-sleep-duration-and-cardio-ankle-vascular-index-in-children
#10
Noriteru Morita, Isao Kambayashi, Tomoyasu Okuda, Shiro Oda, Shingo Takada, Toshihiro Nakajima, Noriyuki Shide, Hisashi Shinkaiya, Koichi Okita
AIM: Poor sleep has been shown to be associated with the development of cardiovascular risk factors, such as obesity, in both adults and children. This study aimed to investigate the relationship between sleep duration and arterial stiffness indices in Japanese children and early adolescents. METHODS: The data on 102 students (56 males, 46 females; mean age, 11.9±1.8 years) were analyzed. As non-invasive arterial stiffness parameters, the cardio-ankle vascular index (CAVI) and heart-ankle pulse wave velocity (haPWV) were evaluated...
December 1, 2016: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/27903988/metabolic-syndrome-in-relation-to-risk-of-meningioma
#11
Corinna Seliger, Christoph R Meier, Claudia Becker, Susan S Jick, Martin Proescholdt, Ulrich Bogdahn, Peter Hau, Michael F Leitzmann
BACKGROUND: Meningioma is a frequent primary intracranial tumor, the etiology of which is potentially related to adiposity. Metabolic syndrome (MetS) is an increasingly common disease characterized by having at least three of the following conditions: central adiposity, arterial hypertension, dyslipidemia, and insulin resistance. Only one prior study investigated MetS in relation to meningioma risk and found a positive association between the two. RESULTS: Among 2,027 cases and 20,269 controls, body mass index was positively associated with meningioma (p-value for trend < 0...
November 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/27903520/visceral-adiposity-and-metabolic-syndrome-after-very-high-fat-and-low-fat-isocaloric-diets-a-randomized-controlled-trial
#12
Vivian L Veum, Johnny Laupsa-Borge, Øyvin Eng, Espen Rostrup, Terje H Larsen, Jan Erik Nordrehaug, Ottar K Nygård, Jørn V Sagen, Oddrun A Gudbrandsen, Simon N Dankel, Gunnar Mellgren
BACKGROUND: Different aspects of dietary pattern, including macronutrient and food profiles, may affect visceral fat mass and metabolic syndrome. OBJECTIVE: We hypothesized that consuming energy primarily from carbohydrate or fat in diets with similar food profiles would differentially affect the ability to reverse visceral adiposity and metabolic syndrome. DESIGN: Forty-six men (aged 30-50 y) with body mass index (in kg/m(2)) >29 and waist circumference >98 cm were randomly assigned to a very high-fat, low-carbohydrate (VHFLC; 73% of energy fat and 10% of energy carbohydrate) or low-fat, high-carbohydrate (LFHC; 30% of energy fat and 53% of energy carbohydrate) diet for 12 wk...
November 30, 2016: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27903267/skeletal-muscle-quality-as-assessed-by-ct-derived-skeletal-muscle-density-is-associated-with-6-month-mortality-in-mechanically-ventilated-critically-ill-patients
#13
Wilhelmus G P M Looijaard, Ingeborg M Dekker, Sandra N Stapel, Armand R J Girbes, Jos W R Twisk, Heleen M Oudemans-van Straaten, Peter J M Weijs
BACKGROUND: Muscle quantity at intensive care unit (ICU) admission has been independently associated with mortality. In addition to quantity, muscle quality may be important for survival. Muscle quality is influenced by fatty infiltration or myosteatosis, which can be assessed on computed tomography (CT) scans by analysing skeletal muscle density (SMD) and the amount of intermuscular adipose tissue (IMAT). We investigated whether CT-derived low skeletal muscle quality at ICU admission is independently associated with 6-month mortality and other clinical outcomes...
December 1, 2016: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/27902700/plasma-lactoferrin-levels-positively-correlate-with-insulin-resistance-despite-an-inverse-association-with-total-adiposity-in-lean-and-severely-obese-patients
#14
Sylvain Mayeur, Alain Veilleux, Yves Pouliot, Benoît Lamarche, Jean-François Beaulieu, Frédéric S Hould, Denis Richard, André Tchernof, Emile Levy
CONTEXT: Lactoferrin (Lf) is an important protein found on mucosal surfaces, within neutrophils and various cells, and in biological fluids. It displays multiple functions, including iron-binding as well as antimicrobial, immunomodulatory and anti-inflammatory activities. Although Lf ingestion has been suggested to cause adiposity reduction in murine models and humans, its relationship with insulin resistance (IR) has not been studied thoroughly. OBJECTIVE: To establish the association between circulating Lf levels, glucose status and blood lipid/lipoprotein profile...
2016: PloS One
https://www.readbyqxmd.com/read/27901032/from-the-past-to-future-from-energy-expenditure-to-energy-intake-to-energy-expenditure
#15
REVIEW
M J Müller, C Geisler
Although most recent research on energy balance focusses on energy intake (EI) there is still need to think about both sides of the energy balance. Current research on energy expenditure (EE) relates to metabolic adaptation to negative energy balance, mitochondrial metabolism associated with aging, obesity and type 2 diabetes mellitus, the role of EE in hunger and appetite control, non-shivering thermogenesis and brown adipose tissue activity, cellular bioenergetics as a target of obesity treatment and the evolutionary and ecological determinants of EE in humans and other primates...
November 30, 2016: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27900852/association-of-ultrasound-based-measures-of-fetal-body-composition-with-newborn-adiposity
#16
S Ikenoue, F Waffarn, K Sumiyoshi, M Ohashi, C Ikenoue, C Buss, D L Gillen, H N Simhan, S Entringer, P D Wadhwa
BACKGROUND: Newborns exhibit substantial variation in gestational age-adjusted and sex-adjusted fat mass proportion. The antecedent characteristics of fetal body composition that are associated with newborn fat mass proportion are poorly understood. OBJECTIVE: The aim of this study was to determine whether a composite measure of fetal fat mass is prospectively associated with newborn adiposity. METHODS: In a longitudinal study of 109 low-risk pregnancies, fetal ultrasonography was performed at approximately 12, 20 and 30 weeks gestation...
November 29, 2016: Pediatric Obesity
https://www.readbyqxmd.com/read/27899810/potential-selection-effects-when-estimating-associations-between-the-infancy-peak-or-adiposity-rebound-and-later-body-mass-index-in-children
#17
C Börnhorst, A Siani, M Tornaritis, D Molnár, L Lissner, S Regber, L Reisch, A De Decker, L A Moreno, W Ahrens, I Pigeot
INTRODUCTION: This study aims to evaluate a potential selection effect caused by exclusion of children with non-identifiable infancy peak (IP) and adiposity rebound (AR) when estimating associations between age and BMI at IP and AR and later weight status. SUBJECTS AND METHODS: In 4 744 children with at least 4 repeated measurements of height and weight in the age interval from 0 to 8 years (37 998 measurements) participating in the IDEFICS/I.Family cohort study, fractional polynomial multi-level models were used to derive individual BMI trajectories...
November 30, 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/27899809/does-vaginal-delivery-mitigate-or-strengthen-the-intergenerational-association-of-overweight-and-obesity-findings-from-the-boston-birth-cohort
#18
N T Mueller, G Mao, W Bennet, S Hourigan, M G Dominguez-Bello, L J Appel, X Wang
BACKGROUND/OBJECTIVES: The intergenerational association of obesity may be driven by mother-to-newborn transmission of microbiota at birth. Yet Cesarean delivery circumvents newborn acquisition of vaginal microbiota, and has been associated with greater childhood adiposity. Here we examined the independent and joint associations of maternal pre-pregnancy BMI (kg/m(2)) and delivery mode with childhood overweight or obesity. SUBJECTS/METHODS: We prospectively followed 1441 racially and ethnically diverse mother-child dyads in the Boston Birth Cohort until age 5y (range 2...
November 30, 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/27899768/effects-of-dietary-restriction-on-adipose-mass-and-biomarkers-of-healthy-aging-in-human
#19
Daniele Lettieri-Barbato, Esmeralda Giovannetti, Katia Aquilano
In developing countries the rise of obesity and obesity-related metabolic disorders, such as cardiovascular diseases and type 2 diabetes, reflects the changes in lifestyle habits and wrong dietary choices. Dietary restriction (DR) regimens have been shown to extend health span and lifespan in many animal models including primates. Identifying biomarkers predictive of clinical benefits of treatment is one of the primary goals of precision medicine. To monitor the clinical outcomes of DR interventions in humans, several biomarkers are commonly adopted...
November 29, 2016: Aging
https://www.readbyqxmd.com/read/27898966/postweaning-changes-in-the-expression-of-chemerin-and-its-receptors-in-calves-are-associated-with-the-modification-of-glucose-metabolism
#20
Y Suzuki, S Haga, M Nakano, H Ishizaki, M Nakano, S Song, K Katoh, S Roh
Chemerin, originally known as a chemoattractant derived from adipose tissue and the liver, has been reported to have regulatory functions in gluconeogenesis, peripheral insulin sensitivity, and insulin secretion. This study was conducted to assess the postweaning changes in expression of this cytokine and its physiological role in the modification of glucose metabolism associated with weaning. Eighteen tissue samples were collected from Holstein calves (90 d of age; n = 4) to investigate the tissue distributions of chemerin and its receptors genes...
November 2016: Journal of Animal Science
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