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https://www.readbyqxmd.com/read/27906499/individual-differences-in-human-brain-development
#1
REVIEW
Timothy T Brown
This article discusses recent scientific advances in the study of individual differences in human brain development. Focusing on structural neuroimaging measures of brain morphology and tissue properties, two kinds of variability are related and explored: differences across individuals of the same age and differences across age as a result of development. A recent multidimensional modeling study is explained, which was able to use brain measures to predict an individual's chronological age within about one year on average, in children, adolescents, and young adults between 3 and 20 years old...
December 1, 2016: Wiley Interdisciplinary Reviews. Cognitive Science
https://www.readbyqxmd.com/read/27906186/preimplantation-factor-is-an-anti-apoptotic-effector-in-human-trophoblasts-involving-p53-signaling-pathway
#2
Hadia Moindjie, Esther Dos Santos, Rita-Josiane Gouesse, Nelly Swierkowski-Blanchard, Valérie Serazin, Eytan R Barnea, François Vialard, Marie-Noëlle Dieudonné
From the earliest stages of gestation, embryonic-maternal interaction has a key role in a successful pregnancy. Various factors present during gestation may significantly influence this type of juxta/paracrine interaction. PreImplantation Factor (PIF) is a recently identified factor with activity at the fetomaternal interface. PIF is secreted by viable embryos and directly controls placental development by increasing the invasive capacity of human extravillous trophoblasts (EVTs). To further specify PIF's role in the human placenta, we analyzed the genome-wide expression profile of the EVT in the presence of a synthetic PIF analog (sPIF)...
December 1, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27906175/impaired-haematopoietic-stem-cell-differentiation-and-enhanced-skewing-towards-myeloid-progenitors-in-aged-caspase-2-deficient-mice
#3
Swati Dawar, Nur Hezrin Shahrin, Nikolina Sladojevic, Richard J D'Andrea, Loretta Dorstyn, Devendra K Hiwase, Sharad Kumar
The apoptotic cysteine protease caspase-2 has been shown to suppress tumourigenesis in mice and its reduced expression correlates with poor prognosis in some human malignancies. Caspase-2-deficient mice develop normally but show ageing-related traits and, when challenged by oncogenic stimuli or certain stress, show enhanced tumour development, often accompanied by extensive aneuploidy. As stem cells are susceptible to acquiring age-related functional defects because of their self-renewal and proliferative capacity, we examined whether loss of caspase-2 promotes such defects with age...
December 1, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27906084/quasi-poisson-versus-negative-binomial-regression-models-in-identifying-factors-affecting-initial-cd4-cell-count-change-due-to-antiretroviral-therapy-administered-to-hiv-positive-adults-in-north-west-ethiopia-amhara-region
#4
Awoke Seyoum, Principal Ndlovu, Temesgen Zewotir
BACKGROUND: CD4 cells are a type of white blood cells that plays a significant role in protecting humans from infectious diseases. Lack of information on associated factors on CD4 cell count reduction is an obstacle for improvement of cells in HIV positive adults. Therefore, the main objective of this study was to investigate baseline factors that could affect initial CD4 cell count change after highly active antiretroviral therapy had been given to adult patients in North West Ethiopia...
November 9, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27906067/aspartylglycosaminuria-a-review
#5
REVIEW
Maria Arvio, Ilkka Mononen
Aspartylglucosaminuria (AGU), a recessively inherited lysosomal storage disease, is the most common disorder of glycoprotein degradation with a high prevalence in the Finnish population. It is a lifelong condition affecting on the patient's appearance, cognition, adaptive skills, physical growth, personality, body structure, and health. An infantile growth spurt and development of macrocephalia associated to hernias and respiratory infections are the key signs to an early identification of AGU. Progressive intellectual and physical disability is the main symptom leading to death usually before the age of 50 years...
December 1, 2016: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/27906065/dystrophin-deficient-dogs-with-reduced-myostatin-have-unequal-muscle-growth-and-greater-joint-contractures
#6
Joe N Kornegay, Daniel J Bogan, Janet R Bogan, Jennifer L Dow, Jiahui Wang, Zheng Fan, Naili Liu, Leigh C Warsing, Robert W Grange, Mihye Ahn, Cynthia J Balog-Alvarez, Steven W Cotten, Monte S Willis, Candice Brinkmeyer-Langford, Hongtu Zhu, Joe Palandra, Carl A Morris, Martin A Styner, Kathryn R Wagner
BACKGROUND: Myostatin (Mstn) is a negative regulator of muscle growth whose inhibition promotes muscle growth and regeneration. Dystrophin-deficient mdx mice in which myostatin is knocked out or inhibited postnatally have a less severe phenotype with greater total mass and strength and less fibrosis and fatty replacement of muscles than mdx mice with wild-type myostatin expression. Dogs with golden retriever muscular dystrophy (GRMD) have previously been noted to have increased muscle mass and reduced fibrosis after systemic postnatal myostatin inhibition...
April 4, 2016: Skeletal Muscle
https://www.readbyqxmd.com/read/27905955/future-healthy-life-expectancy-among-older-adults-in-the-us-a-forecast-based-on-cohort-smoking-and-obesity-history
#7
Bochen Cao
BACKGROUND: In the past three decades, the elderly population in the United States experienced increase in life expectancy (LE) and disability-free life expectancy (LE(ND)), but decrease in life expectancy with disability (LE(D)). Smoking and obesity are two major risk factors that had negative impacts on these trends. While smoking prevalence continues to decline in recent decades, obesity prevalence has been growing and is currently at a high level. This study aims to forecast the healthy life expectancy for older adults aged 55 to 85 in the US from 2011 to 2040, in relation to their smoking and obesity history...
July 12, 2016: Population Health Metrics
https://www.readbyqxmd.com/read/27905925/expression-of-insulin-receptor-ir-a-and-b-isoforms-igf-ir-and-ir-igf-ir-hybrid-receptors-in-vascular-smooth-muscle-cells-and-their-role-in-cell-migration-in-atherosclerosis
#8
N Beneit, C E Fernández-García, J L Martín-Ventura, L Perdomo, Ó Escribano, J B Michel, G García-Gómez, S Fernández, S Díaz-Castroverde, J Egido, A Gómez-Hernández, M Benito
BACKGROUND: Abnormal proliferation and migration of vascular smooth muscle cells (VSMCs) is a major contributor to the development of atherosclerotic process. In a previous work, we demonstrated that the insulin receptor isoform A (IRA) and its association with the insulin-like growth factor-I receptor (IGF-IR) confer a proliferative advantage to VSMCs. However, the role of IR and IGF-IR in VSMC migration remains poorly understood. METHODS: Wound healing assays were performed in VSMCs bearing IR (IRLoxP(+/+) VSMCs), or not (IR(-/-) VSMCs), expressing IRA (IRA VSMCs) or expressing IRB (IRB VSMCs)...
December 1, 2016: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/27905861/sodium-bisulfite-pyrosequencing-revealed-that-developmental-exposure-to-environmental-contaminant-mixtures-does-not-affect-dna-methylation-of-dna-repeats-in-sprague-dawley-rats
#9
Daniel Desaulniers, Cathy Cummings-Lorbetskie, Nanqin Li, Gong-Hua Xiao, Leonora Marro, Nasrin Khan, Karen Leingartner
Hypomethylation of DNA repeats has been linked to diseases and cancer predisposition. Human studies suggest that higher blood concentrations of environmental contaminants (EC) correlate with levels of hypomethylation of DNA repeats in blood. The objective of this study was to examine the effect of in utero and/or lactational exposure to EC on the methylation of DNA repeats (LINE-1 and identifier element) in Sprague-Dawley rat pups at birth, at postnatal day (PND) 21, and in adulthood (PND78-86). From gestation day 0 to PND20, dams were exposed to a mixture "M" of polychlorinated biphenyls (PCB), pesticides, and methylmercury (MeHg), at 0...
December 1, 2016: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/27905651/-current-evidence-on-health-benefits-of-the-mediterranean-diet
#10
Catalina Dussaillant, Guadalupe Echeverría, Inés Urquiaga, Nicolás Velasco, Attilio Rigotti
The Mediterranean diet is currently considered a functional diet with an increasing amount of scientific evidence that supports its beneficial effects in human health. Several observational cross-sectional and prospective cohort studies show an association between this diet and a lower prevalence and incidence of chronic diseases, such as cardiovascular disease, cancer, metabolic syndrome, diabetes, and neurodegenerative diseases as well as a reduced overall mortality. Additionally, clinical interventional studies, particularly the PREDIMED (Prevención con Dieta Mediterránea) initiative, have shown, with high quality scientific evidence, that a Mediterranean diet -supplemented either with olive oil or nuts- can lower by 30% the incidence of cardiovascular disease, reverse the metabolic syndrome, and prevent the development of diabetes and aging-related cognitive decline...
August 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/27905621/-parechovirus-as-etiologic-agent-of-meningitis-and-or-sepsis-like-illness-in-infants
#11
Valentina Gutiérrez, Constanza Martínez-Valdebenito, Luisa Montecinos, Romina Alarcón, Constanza Gárate, Marcela Ferrés
INTRODUCTION: Human parechovirus (HPeV) belongs to the Picornaviridae family and has been described in viral meningoencephalitis and sepsis like illness in infants. Until now, 16 genotypes have been recognized, the most common are HPEV 1, 2 and 3; type 3 is most severe. AIMS: To estimate the frequency of HPEV etiology in viral meningoencephalitis and sepsis in infants and characterize clinical and molecular aspects of infection. METHODS: Between October 2013 and March 2015 we collected CSF samples, plasma, nasopharyngeal swabs and/or stools of patients younger than two years with suspected sepsis and/or viral meningitis...
August 2016: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/27905558/microrna-mir-34-provides-robustness-to-environmental-stress-response-via-the-daf-16-network-in-c-elegans
#12
Meltem Isik, T Keith Blackwell, Eugene Berezikov
Diverse stresses and aging alter expression levels of microRNAs, suggesting a role for these posttranscriptional regulators of gene expression in stress modulation and longevity. Earlier studies demonstrated a central role for the miR-34 family in promoting cell cycle arrest and cell death following stress in human cells. However, the biological significance of this response was unclear. Here we show that in C. elegans mir-34 upregulation is necessary for developmental arrest, correct morphogenesis, and adaptation to a lower metabolic state to protect animals against stress-related damage...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27905522/circulating-cell-free-dna-telomere-length-and-bilirubin-in-the-vienna-active-ageing-study-exploratory-analysis-of-a-randomized-controlled-trial
#13
Anela Tosevska, Bernhard Franzke, Marlene Hofmann, Immina Vierheilig, Barbara Schober-Halper, Stefan Oesen, Oliver Neubauer, Barbara Wessner, Karl-Heinz Wagner
Telomere length (TL) in blood cells is widely used in human studies as a molecular marker of ageing. Circulating cell-free DNA (cfDNA) as well as unconjugated bilirubin (UCB) are dynamic blood constituents whose involvement in age-associated diseases is largely unexplored. To our knowledge, there are no published studies integrating all three parameters, especially in individuals of advanced age. Here we present a secondary analysis from the Vienna Active Aging Study (VAAS), a randomized controlled intervention trial in institutionalized elderly individuals (n = 101)...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27905293/long-term-exercise-in-mice-has-sex-dependent-benefits-on-body-composition-and-metabolism-during-aging
#14
Rachel C McMullan, Scott A Kelly, Kunjie Hua, Brian K Buckley, James E Faber, Fernando Pardo-Manuel de Villena, Daniel Pomp
Aging is associated with declining exercise and unhealthy changes in body composition. Exercise ameliorates certain adverse age-related physiological changes and protects against many chronic diseases. Despite these benefits, willingness to exercise and physiological responses to exercise vary widely, and long-term exercise and its benefits are difficult and costly to measure in humans. Furthermore, physiological effects of aging in humans are confounded with changes in lifestyle and environment. We used C57BL/6J mice to examine long-term patterns of exercise during aging and its physiological effects in a well-controlled environment...
November 2016: Physiological Reports
https://www.readbyqxmd.com/read/27905258/hla-mismatched-haploidentical-transplantation-using-low-dose-anti-thymocyte-globulin-atg-thymoglobulin
#15
Shinichi Kako, Yu Akahoshi, Naonori Harada, Hirofumi Nakano, Kazuaki Kameda, Tomotaka Ugai, Ryoko Yamasaki, Hidenori Wada, Yuko Ishihara, Koji Kawamura, Kana Sakamoto, Miki Sato, Masahiro Ashizawa, Kiriko Terasako-Saito, Shun-Ichi Kimura, Misato Kikuchi, Hideki Nakasone, Rie Yamazaki, Junya Kanda, Yoshinobu Kanda
Objectives To clarify optimal strategies for human leukocyte antigen (HLA)-mismatched haploidentical hematopoietic stem cell transplantation (HSCT). Methods Twelve patients who underwent HSCT from a haploidentical related donor using low-dose thymoglobulin were analyzed retrospectively. Thymoglobulin was added to conditioning regimens at 2.5 mg/kg/day for 2 days (days -4 and -3). Prophylaxis against graft-versus-host disease (GVHD) was performed with cyclosporine and methotrexate. Results The median age of the patients was 33 years...
December 1, 2016: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/27904993/molecular-mechanisms-of-heart-failure-insights-from-drosophila
#16
Shasha Zhu, Zhe Han, Yan Luo, Yulin Chen, Qun Zeng, Xiushan Wu, Wuzhou Yuan
Heart failure places an enormous burden on health and economic systems worldwide. It is a complex disease that is profoundly influenced by both genetic and environmental factors. Neither the molecular mechanisms underlying heart failure nor effective prevention strategies are fully understood. Fortunately, relevant aspects of human heart failure can be experimentally studied in tractable model animals, including the fruit fly, Drosophila, allowing the in vivo application of powerful and sophisticated molecular genetic and physiological approaches...
December 1, 2016: Heart Failure Reviews
https://www.readbyqxmd.com/read/27904971/mutations-in-slc5a6-associated-with-brain-immune-bone-and-intestinal-dysfunction-in-a-young-child
#17
Veedamali S Subramanian, Alexandru R Constantinescu, Paul J Benke, Hamid M Said
The human sodium-dependent multivitamin transporter (hSMVT) is a product of the SLC5A6 gene and mediates biotin, pantothenic acid, and lipoate uptake in a variety of cellular systems. We report here the identification of mutations R94X, a premature termination, and R123L, a dysfunctional amino acid change, both in exon 3 of the SLC5A6 gene in a child using whole genome-scanning. At 15 months of age, the child showed failure to thrive, microcephaly and brain changes on MRI, cerebral palsy and developmental delay, variable immunodeficiency, and severe gastro-esophageal reflux requiring a gastrostomy tube/fundoplication, osteoporosis, and pathologic bone fractures...
November 30, 2016: Human Genetics
https://www.readbyqxmd.com/read/27904880/microbial-community-patterns-associated-with-automated-teller-machine-keypads-in-new-york-city
#18
Holly M Bik, Julia M Maritz, Albert Luong, Hakdong Shin, Maria Gloria Dominguez-Bello, Jane M Carlton
In densely populated urban environments, the distribution of microbes and the drivers of microbial community assemblages are not well understood. In sprawling metropolitan habitats, the "urban microbiome" may represent a mix of human-associated and environmental taxa. Here we carried out a baseline study of automated teller machine (ATM) keypads in New York City (NYC). Our goal was to describe the biodiversity and biogeography of both prokaryotic and eukaryotic microbes in an urban setting while assessing the potential source of microbial assemblages on ATM keypads...
November 2016: MSphere
https://www.readbyqxmd.com/read/27904805/hypothesis-on-serenoa-repens-bartram-small-extract-inhibition-of-prostatic-5%C3%AE-reductase-through-an-in-silico-approach-on-5%C3%AE-reductase-x-ray-structure
#19
Paolo Governa, Daniela Giachetti, Marco Biagi, Fabrizio Manetti, Luca De Vico
Benign prostatic hyperplasia is a common disease in men aged over 50 years old, with an incidence increasing to more than 80% over the age of 70, that is increasingly going to attract pharmaceutical interest. Within conventional therapies, such as α-adrenoreceptor antagonists and 5α-reductase inhibitor, there is a large requirement for treatments with less adverse events on, e.g., blood pressure and sexual function: phytotherapy may be the right way to fill this need. Serenoa repens standardized extract has been widely studied and its ability to reduce lower urinary tract symptoms related to benign prostatic hyperplasia is comprehensively described in literature...
2016: PeerJ
https://www.readbyqxmd.com/read/27904784/high-foxred1-expression-predicted-good-prognosis-of-colorectal-cancer
#20
Weiqiang Fei, Shuiping Liu, Xiaotong Hu
The human FAD-dependent oxidoreductase domain containing 1 (FOXRED1) protein is reported as an assembly factor which promotes the correct assembly and stability of mitochondrial Complex I (CI). Alterations of mitochondrial CI might cause tumorigenesis and metastasis, but it's molecular mechanisms remain unclear. In this study, we selected 145 cases of colorectal cancer for immunohistochemistry to explore the role of FOXRED1 played in the tumor progression of colorectal cancer. The relationship between FOXRED1 expression and clinicopathological features of colorectal cancers was evaluated...
2016: American Journal of Cancer Research
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