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https://www.readbyqxmd.com/read/27920719/bile-acids-in-neurodegenerative-disorders
#1
REVIEW
Hayley D Ackerman, Glenn S Gerhard
Bile acids, a structurally related group of molecules derived from cholesterol, have a long history as therapeutic agents in medicine, from treatment for primarily ocular diseases in ancient Chinese medicine to modern day use as approved drugs for certain liver diseases. Despite evidence supporting a neuroprotective role in a diverse spectrum of age-related neurodegenerative disorders, including several small pilot clinical trials, little is known about their molecular mechanisms or their physiological roles in the nervous system...
2016: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/27919283/outcomes-and-survival-prediction-models-for-severe-adult-acute-respiratory-distress-syndrome-treated-with-extracorporeal-membrane-oxygenation
#2
REVIEW
Sacha Rozencwajg, David Pilcher, Alain Combes, Matthieu Schmidt
Extracorporeal membrane oxygenation (ECMO) for severe acute respiratory distress syndrome (ARDS) has known a growing interest over the last decades with promising results during the 2009 A(H1N1) influenza epidemic. Targeting populations that can most benefit from this therapy is now of major importance.Survival has steadily improved for a decade, reaching up to 65% at hospital discharge in the most recent cohorts. However, ECMO is still marred by frequent and significant complications such as bleeding and nosocomial infections...
December 5, 2016: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/27919118/preeclampsia-and-the-risk-of-bronchopulmonary-dysplasia-in-preterm-infants-less-than-32-weeks-gestation
#3
Nancy Soliman, Kathleen Chaput, Belal Alshaikh, Kamran Yusuf
Objective Angiogenesis is essential for normal lung development. The objective of our study was to test the hypothesis that preeclampsia, an antiangiogenic state, is a risk factor for bronchopulmonary dysplasia (BPD). Design Prospective cohort study of infants less than 32 weeks' gestation born to mothers with preeclampsia between January 2007 and June 2010 at a single tertiary care center. Their BPD outcome was compared with infants born to the next two normotensive mothers with a ± 1 week gestational age difference...
December 5, 2016: American Journal of Perinatology
https://www.readbyqxmd.com/read/27918851/influence-of-a-100-m-simulated-in-water-rescue-on-cardiopulmonary-parameters
#4
Ana Sousa, Ricardo J Fernandes, Núria Rodríguez, J Arturo Abraldes
OBJECTIVE: Cardiopulmonary resuscitation (CPR) after a drowning episode is performed under fatigue conditions. However, the characterization of CPR in this context is still unknown. Our purpose was to investigate the effect of a 100-m simulated in-water rescue on CPR and physiological parameters in trained certified lifeguards. METHODS: Thirty trained certified lifeguards (age 24.6 ± 3.8 yrs; height 178.2 ± 7.4 cm and weight 76.9 ± 10.6 kg) completed two protocols using an adult manikin: (i) 4-min CPR after 4-min baseline conditions (CPR), and (ii) 4-min CPR after a 100-m simulated in-water rescue in the sea (CPR Rescue), both with a compression-ventilation ratio of 30:2...
December 5, 2016: Prehospital Emergency Care
https://www.readbyqxmd.com/read/27918760/risk-factors-protective-factors-and-current-recommendations-to-reduce-sudden-infant-death-syndrome-a-review
#5
Rebecca F Carlin, Rachel Y Moon
Importance: Sudden infant death syndrome remains the leading cause of death in infants aged 1 month to 1 year in the United States. Observations: While its exact cause is unknown, sudden infant death syndrome is believed to be multifactorial, ie, occurs in infants with underlying biological vulnerability who experience an exogenous stressor, such as prone/side sleeping or soft bedding, during a critical developmental period. Much genetic and physiologic evidence points to impaired arousal responses to hypercarbia and hypoxia, which ultimately leads to asphyxia...
December 5, 2016: JAMA Pediatrics
https://www.readbyqxmd.com/read/27918230/mechanisms-of-cross-talk-between-the-diet-the-intestinal-microbiome-and-the-undernourished-host
#6
Helene Velly, Robert A Britton, Geoffrey A Preidis
Undernutrition remains one of the most pressing global health challenges today, contributing to nearly half of all deaths in children under five years of age. Although insufficient dietary intake and environmental enteric dysfunction are often inciting factors, evidence now suggests that unhealthy gut microbial populations perpetuate the vicious cycle of pathophysiology that results in persistent growth impairment in children. The metagenomics era has facilitated new research identifying an altered microbiome in undernourished hosts and has provided insight into a number of mechanisms by which these alterations may affect growth...
December 5, 2016: Gut Microbes
https://www.readbyqxmd.com/read/27917473/maternal-deprivation-alters-expression-of-neural-maturation-gene-tbr1-in-the-amygdala-paralaminar-nucleus-in-infant-female-macaques
#7
Danielle M de Campo, Judy L Cameron, Joseph M Miano, David A Lewis, Karoly Mirnics, Julie L Fudge
Early parental loss is associated with social-emotional dysregulation and amygdala physiologic changes. Previously, we examined whole amygdala gene expression in infant monkeys exposed to early maternal deprivation. Here, we focus on an amygdala region with immature neurons at birth: the paralaminar nucleus (PL). We hypothesized that 1) the normal infant PL is enriched in a subset of neural maturation (NM) genes compared to a nearby amygdala subregion; and 2) maternal deprivation would downregulate expression of NM transcripts (mRNA)...
December 4, 2016: Developmental Psychobiology
https://www.readbyqxmd.com/read/27916781/gradually-increasing-ethinyl-estradiol-for-turner-syndrome-may-produce-good-final-height-but-not-ideal-bmd
#8
Yukihiro Hasegawa, Daisuke Ariyasu, Masako Izawa, Junko Igaki-Miyamoto, Mami Fukuma, Megumi Hatano, Hiroko Yagi, Masahiro Goto
Estrogen replacement therapy in Turner syndrome should theoretically mimic the physiology of healthy girls. The objective of this study was to describe final height and bone mineral density (BMD) in a group of 17 Turner syndrome patients (group E) who started their ethinyl estradiol therapy with an ultra-low dosage (1-5 ng/kg/day) from 9.8˜13.7 years. The subjects in group E had been treated with GH 0.35 mg/kg/week since the average age of 7.4 years. The 30 subjects in group L, one of the historical groups, were given comparable doses of GH, and conjugated estrogen 0...
December 2, 2016: Endocrine Journal
https://www.readbyqxmd.com/read/27916526/the-mitochondrial-lon-protease-is-required-for-age-specific-and-sex-specific-adaptation-to-oxidative-stress
#9
Laura C D Pomatto, Caroline Carney, Brenda Shen, Sarah Wong, Kelly Halaszynski, Matthew P Salomon, Kelvin J A Davies, John Tower
Multiple human diseases involving chronic oxidative stress show a significant sex bias, including neurodegenerative diseases, cancer, immune dysfunction, diabetes, and cardiovascular disease. However, a possible molecular mechanism for the sex bias in physiological adaptation to oxidative stress remains unclear. Here, we report that Drosophila melanogaster females but not males adapt to hydrogen peroxide stress, whereas males but not females adapt to paraquat (superoxide) stress. Stress adaptation in each sex requires the conserved mitochondrial Lon protease and is associated with sex-specific expression of Lon protein isoforms and proteolytic activity...
November 23, 2016: Current Biology: CB
https://www.readbyqxmd.com/read/27916140/moderate-alcohol-consumption-after-a-mental-stressor-attenuates-the-endocrine-stress-response
#10
I C Schrieks, M M Joosten, W A A Klöpping-Ketelaars, R F Witkamp, H F J Hendriks
Alcohol is often consumed to reduce tension and improve mood when exposed to stressful situations. Previous studies showed that moderate alcohol consumption may reduce stress when alcohol is consumed prior to a stressor, but data on the effect of alcohol consumption after a mental stressor is limited. Therefore, our objective was to study whether moderate alcohol consumption immediately after a mental stressor attenuates the stress response. Twenty-four healthy men (age 21-40 y, BMI 18-27 kg/m(2)) participated in a placebo-controlled trial...
December 2016: Alcohol
https://www.readbyqxmd.com/read/27916049/-a-retrospective-clinical-study-of-sixty-three-cases-with-persistent-inflammation-immunosuppression-and-catabolism-syndrome
#11
R Y Ding, J N Qiu, B Y Liu, X X Li, Y N Sun, Y J Liang, D M Zhao, R Zhu, Z D Zhang, X C Ma
Objective: To study the clinical characteristics and prognosis of patients with persistent inflammation immunosuppression and catabolism syndrome (PICS) in ICU. Methods: A total of 126 patients admitted to ICU (ICU stay of more than 10 days, age≥18 years) between January 2014 to December 2014 were retrospectively studied.Data were collected from electronic medical records including demographics, underlying disease, Acute Physiology and Chronic Health Evaluation Ⅱ (APACHEⅡ) score, Sequential Organ Failure Assessment (SOFA) score, laboratory parameters, ICU acquired infections and clinical outcome...
December 1, 2016: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/27915400/the-pathophysiological-role-of-nox2-in-hypertension-and-organ-damage
#12
REVIEW
Maurizio Forte, Cristina Nocella, Elena De Falco, Silvia Palmerio, Leonardo Schirone, Valentina Valenti, Giacomo Frati, Roberto Carnevale, Sebastiano Sciarretta
NADPH oxidases (NOXs) represent one of the major sources of reactive oxygen species in the vascular district. Reactive oxygen species are responsible for vascular damage that leads to several cardiovascular pathological conditions. Among NOX isoforms, NOX2 is widely expressed in many cells types, such as cardiomyocytes, endothelial cells, and vascular smooth muscle cells, confirming its pivotal role in vascular pathophysiology. Studies in mice models with systemic deletion of NOX2, as well as in transgenic mice overexpressing NOX2, have demonstrated the undeniable involvement of NOX2 in the development of hypertension, atherosclerosis, diabetes mellitus, cardiac hypertrophy, platelet aggregation, and aging...
December 3, 2016: High Blood Pressure & Cardiovascular Prevention: the Official Journal of the Italian Society of Hypertension
https://www.readbyqxmd.com/read/27915366/aging-has-the-opposite-effect-on-camp-and-cgmp-circadian-variations-in-rat-leydig-cells
#13
Aleksandar Z Baburski, Srdjan J Sokanovic, Silvana A Andric, Tatjana S Kostic
The Leydig cell physiology displays a circadian rhythm driven by a complex interaction of the reproductive axis hormones and circadian system. The final output of this regulatory process is circadian pattern of steroidogenic genes expression and testosterone production. Aging gradually decreases robustness of rhythmic testosterone secretion without change in pattern of LH secretion. Here, we analyzed effect of aging on circadian variation of cAMP and cGMP signaling in Leydig cells. Results showed opposite effect of aging on cAMP and cGMP daily variation...
December 3, 2016: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/27914509/effects-of-docosahexaenoic-acid-supplementation-on-pufa-levels-in-red-blood-cells-and-plasma
#14
Jan Philipp Schuchardt, Annika I Ostermann, Lisa Stork, Laura Kutzner, Heike Kohrs, Theresa Greupner, Andreas Hahn, Nils Helge Schebb
INTRODUCTION: Polyunsaturated fatty acids (PUFA) are metabolized in a complex network of elongation, desaturation and beta oxidation. MATERIAL AND METHODS: The short (1 and 3 wk), and long term (6 and 12 wk) effect of 1076mg/d docosahexaenoic acid (DHA, free of eicosapentaenoic acid (EPA)) on (absolute) PUFA concentrations in plasma and red blood cells (RBC) of 12 healthy men (mean age 25.1±1.5 years) was investigated. RESULTS: RBC DHA concentrations significantly (p<0...
December 2016: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/27914356/can-podcasts-for-assessment-guidance-and-feedback-promote-self-efficacy-among-undergraduate-nursing-students-a-qualitative-study
#15
Linda C McSwiggan, Maureen Campbell
BACKGROUND: Improving assessment guidance and feedback for students has become an international priority within higher education. Podcasts have been proposed as a tool for enhancing teaching, learning and assessment. However, a stronger theory-based rationale for using podcasts, particularly as a means of facilitating assessment guidance and feedback, is required. OBJECTIVE: To explore students' experiences of using podcasts for assessment guidance and feedback...
November 27, 2016: Nurse Education Today
https://www.readbyqxmd.com/read/27914225/cortical-stimulation-parameters-for-functional-mapping
#16
Jacquelyn A Corley, Pouya Nazari, Vincent J Rossi, Nora C Kim, Louis F Fogg, Thomas J Hoeppner, Travis R Stoub, Richard W Byrne
PURPOSE: There is significant variation in how patients respond to cortical electrical stimulation. It has been hypothesized that individual demographic and pathologic factors, such as age, sex, disease duration, and MRI findings, may explain this discrepancy. The purpose of our study is to identify specific patient characteristics and their effect on cortical stimulation, and discover the extent of variation in behavioral responses that exists among patients with epilepsy. METHOD: We retrospectively analyzed data from 92 patients with medically intractable epilepsy who had extra-operative cortical electrical stimulation...
November 23, 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/27913982/pharmacological-management-of-allergic-rhinitis-in-the-elderly
#17
REVIEW
Andrzej Bozek
Recent studies suggest that allergic rhinitis is highly prevalent in the elderly population, but is underdiagnosed and undertreated. This review article briefly introduces allergic rhinitis in the elderly (epidemiology and pathophysiology) and identifies the main goals of treatment in these patients with respect to age-related physiological factors, comorbid conditions and polypharmacy. The primary focus of the article is a narrative review of the literature concerning the different types of treatment options in elderly patients aged 60+ years (pharmacological therapy and allergen-specific immunotherapy)...
December 3, 2016: Drugs & Aging
https://www.readbyqxmd.com/read/27913742/frailty-assessment-in-hospitalized-older-adults-using-the-electronic-health-record
#18
Deborah A Lekan, Debra C Wallace, Thomas P McCoy, Jie Hu, Susan G Silva, Heather E Whitson
INTRODUCTION: Frailty, a clinical syndrome of decreased physiologic reserve and dysregulation in multiple physiologic systems, is associated with increased risk for adverse outcomes. PURPOSE: The aim of this retrospective, cross-sectional, correlational study was to characterize frailty in older adults admitted to a tertiary-care hospital using a biopsychosocial frailty assessment and to determine associations between frailty and time to in-hospital mortality and 30-day rehospitalization...
December 2, 2016: Biological Research for Nursing
https://www.readbyqxmd.com/read/27913468/biologic-vs-physiologic-age-in-the-transplant-candidate
#19
Andrew S Artz
Hematopoietic cell transplantation (HCT) remains a cornerstone of treatment of many hematologic malignancies but transplant-associated morbidity and mortality limit application to older patients. Biologic or chronologic age barriers to HCT have fallen, because patients in their 8th decade of life comprise the group with the greatest rise in transplant use over the past decade. Evaluating physiologic age or general health in older transplant candidates requires a systematic approach inclusive of functional and comorbidity assessment, which typically is accomplished through geriatric assessment (GA)...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27913387/using-multivariate-base-rates-to-interpret-low-scores-on-an-abbreviated-battery-of-the-delis-kaplan-executive-function-system
#20
Justin E Karr, Mauricio A Garcia-Barrera, James A Holdnack, Grant L Iverson
OBJECTIVE: Executive function consists of multiple cognitive processes that operate as an interactive system to produce volitional goal-oriented behavior, governed in large part by frontal microstructural and physiological networks. Identification of deficits in executive function in those with neurological or psychiatric conditions can be difficult because the normal variation in executive function test scores, in healthy adults when multiple tests are used, is largely unknown. This study addresses that gap in the literature by examining the prevalence of low scores on a brief battery of executive function tests...
December 1, 2016: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
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