keyword
MENU ▼
Read by QxMD icon Read
search

Spiegelman

keyword
https://www.readbyqxmd.com/read/28797054/large-scale-wheat-flour-folic-acid-fortification-program-increases-plasma-folate-levels-among-women-of-reproductive-age-in-urban-tanzania
#1
Ramadhani A Noor, Ajibola I Abioye, Nzovu Ulenga, Salum Msham, George Kaishozi, Nilupa S Gunaratna, Ramadhani Mwiru, Erin Smith, Christina Nyhus Dhillon, Donna Spiegelman, Wafaie Fawzi
There is widespread vitamin and mineral deficiency problem in Tanzania with known deficiencies of at least vitamin A, iron, folate and zinc, resulting in lasting negative consequences especially on maternal health, cognitive development and thus the nation's economic potential. Folate deficiency is associated with significant adverse health effects among women of reproductive age, including a higher risk of neural tube defects. Several countries, including Tanzania, have implemented mandatory fortification of wheat and maize flour but evidence on the effectiveness of these programs in developing countries remains limited...
2017: PloS One
https://www.readbyqxmd.com/read/28782117/risk-factors-for-blood-transfusion-in-patients-undergoing-high-order-cesarean-delivery
#2
Jessica Spiegelman, Mirella Mourad, Stephanie Melka, Simi Gupta, Jennifer Lam-Rachlin, Andrei Rebarber, Daniel H Saltzman, Nathan S Fox
BACKGROUND: The objective was to identify risk factors associated with blood transfusion in patients undergoing high-order Cesarean delivery (CD). STUDY DESIGN AND METHODS: This was a retrospective cohort study of patients undergoing third or more CD by a single maternal-fetal medicine practice between 2005 and 2016. We compared risk factors between women who did and did not receive a red blood cell transfusion during the operation or before discharge. Repeat analysis was performed after excluding women with placenta previa...
August 7, 2017: Transfusion
https://www.readbyqxmd.com/read/28742357/size-effect-in-the-ionization-energy-of-pah-clusters
#3
C Joblin, L Dontot, G A Garcia, F Spiegelman, M Rapacioli, L Nahon, P Parneix, T Pino, P Bréchignac
We report the first experimental measurement of the near-threshold photoionization spectra of polycyclic aromatic hydrocarbon clusters made of pyrene C16H10 and coronene C24H12, obtained using imaging photoelectron-photoion coincidence spectrometry with a VUV synchrotron beamline. The experimental results of the ionization energy are compared to calculated ones obtained from simulations using dedicated electronic structure treatment for large ionized molecular clusters. Experiment and theory consistently find a decrease of the ionization energy with cluster size...
August 3, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28741475/cachexia-and-brown-fat-a-burning-issue-in-cancer
#4
Serkan Kir, Bruce M Spiegelman
Cachexia, a progressive weight loss in cancer patients that results from tumor-induced energy wasting, is a serious problem that interferes with response to treatment and affects quality of life. Recent studies suggest that thermogenesis of adipose tissues is involved in energy wasting and also point to a link between the atrophy of fat and muscle. Tumor-derived PTHrP has emerged as a key molecule playing multiple roles in cachexia, from fat 'browning' factor to potential therapeutic target.
September 2016: Trends in Cancer
https://www.readbyqxmd.com/read/28728684/healthful-and-unhealthful-plant-based-diets-and-the-risk-of-coronary-heart%C3%A2-disease-in-u-s-adults
#5
Ambika Satija, Shilpa N Bhupathiraju, Donna Spiegelman, Stephanie E Chiuve, JoAnn E Manson, Walter Willett, Kathryn M Rexrode, Eric B Rimm, Frank B Hu
BACKGROUND: Plant-based diets are recommended for coronary heart disease (CHD) prevention. However, not all plant foods are necessarily beneficial for health. OBJECTIVES: This study sought to examine associations between plant-based diet indices and CHD incidence. METHODS: We included 73,710 women in NHS (Nurses' Health Study) (1984 to 2012), 92,329 women in NHS2 (1991 to 2013), and 43,259 men in Health Professionals Follow-up Study (1986 to 2012), free of chronic diseases at baseline...
July 25, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28715281/admission-for-copd-exacerbation-is-associated-with-the-clinical-diagnosis-of-pulmonary-hypertension-results-from-a-retrospective-longitudinal-study-of-a-veteran-population
#6
Sarah K Medrek, Amir Sharafkhaneh, Andrew M Spiegelman, Arnav Kak, Lavannya M Pandit
Patients with chronic obstructive pulmonary disease and pulmonary hypertension (PH-COPD) have an increased risk of hospitalizations and death compared to COPD alone. Identifying PH in COPD is challenging because performing right heart catheterization, the gold standard for PH diagnosis, is invasive and not routinely performed. Clinical characterization of COPD patients at risk who are progressing toward PH will aid therapeutic development at earlier stages of progressively fatal PH-COPD. We studied the records of 5,45,086 patients in a large Veterans Affairs healthcare network (2000-2012) with a primary discharge diagnosis of COPD based on encounters' ICD-9 codes and further stratified into those who received an additional ICD-9 code for a PH diagnosis...
July 17, 2017: COPD
https://www.readbyqxmd.com/read/28692301/high-dose-vitamin-d3-during-tuberculosis-treatment-in-mongolia-a-randomised-controlled-trial
#7
Davaasambuu Ganmaa, Baatar Munkhzul, Wafaie Fawzi, Donna Spiegelman, Walter C Willett, Purev Bayasgalan, Erkhembayar Baasansuren, Burneebaatar Buyankhishig, Sereeter Oyun-Erdene, David A Jolliffe, Theodoros Xenakis, Sabri Bromage, Barry R Bloom, Adrian R Martineau
RATIONALE: Existing trials of adjunctive vitamin D in the treatment of pulmonary tuberculosis (PTB) are variously limited by small sample sizes, inadequate dosing regimens and high baseline vitamin D status among participants. Comprehensive analyses of the effects of genetic variation in the vitamin D pathway on response to vitamin D supplementation are lacking. OBJECTIVES: To determine the effect of high-dose vitamin D3 on response to antimicrobial therapy for PTB and to evaluate the influence of single nucleotide polymorphisms (SNPs) in vitamin D pathway genes on response to adjunctive vitamin D3...
July 10, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28630339/ucp1-deficiency-causes-brown-fat-respiratory-chain-depletion-and-sensitizes-mitochondria-to-calcium-overload-induced-dysfunction
#8
Lawrence Kazak, Edward T Chouchani, Irina G Stavrovskaya, Gina Z Lu, Mark P Jedrychowski, Daniel F Egan, Manju Kumari, Xingxing Kong, Brian K Erickson, John Szpyt, Evan D Rosen, Michael P Murphy, Bruce S Kristal, Steven P Gygi, Bruce M Spiegelman
Brown adipose tissue (BAT) mitochondria exhibit high oxidative capacity and abundant expression of both electron transport chain components and uncoupling protein 1 (UCP1). UCP1 dissipates the mitochondrial proton motive force (Δp) generated by the respiratory chain and increases thermogenesis. Here we find that in mice genetically lacking UCP1, cold-induced activation of metabolism triggers innate immune signaling and markers of cell death in BAT. Moreover, global proteomic analysis reveals that this cascade induced by UCP1 deletion is associated with a dramatic reduction in electron transport chain abundance...
July 25, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28621569/down-regulation-of-slcyp1-in-the-phloem-reduces-auxin-response-and-photosynthetic-rate-in-tomato-solanum-lycopersicum-plants
#9
Ziv Spiegelman, Amit Shahar, Shmuel Wolf
The tomato dgt mutant, containing a single mutation in the Cyclophilin1 (SlCyp1) gene, is auxin insensitive and exhibits a pleotropic phenotype that includes lack of lateral roots, malformed xylem structure and reduced root-to-shoot ratio. Recently, we found that the SlCyp1 protein is phloem-mobile and traffic from shoot to root to induce lateral root formation. These processes are achieved through activation of auxin-mediated developmental programs. Inhibition of the trafficked SlCyp1 activity at the target site resulted in inhibition of the auxin response, supporting the hypothesis that this protein is indeed a mobile signal...
June 3, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28590865/evaluating-public-health-interventions-6-modeling-ratios-or-differences-let-the-data-tell-us
#10
Donna Spiegelman, Tyler J VanderWeele
We provide an overview of the relative merits of ratio measures (relative risks, risk ratios, and rate ratios) compared with difference measures (risk and rate differences). We discuss evidence that the multiplicative model often fits the data well, so that rarely are interactions with other risk factors for the outcome observed when one uses a logistic, relative risk, or Cox regression model to estimate the intervention effect. As a consequence, additive models, which estimate the risk or rate difference, will often exhibit interactions...
July 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28559401/association-between-endometriosis-and-hypercholesterolemia-or-hypertension
#11
Fan Mu, Janet Rich-Edwards, Eric B Rimm, Donna Spiegelman, John P Forman, Stacey A Missmer
An altered hormonal or chronic systemic inflammatory milieu characterizing endometriosis may result in a higher risk of hypercholesterolemia and hypertension. Conversely, elevated low-density lipoprotein in hypercholesterolemia and chronic systemic inflammation resulting from hypertension may increase the risk of endometriosis. We assessed the association of laparoscopically confirmed endometriosis with hypercholesterolemia and hypertension in a large prospective cohort study. In 1989, 116 430 registered female nurses aged 25 to 42 completed the baseline questionnaire and were followed for 20 years...
July 2017: Hypertension
https://www.readbyqxmd.com/read/28459108/cachexia-brown-fat-a-burning-issue-in-cancer
#12
Serkan Kir, Bruce M Spiegelman
Cachexia, a progressive weight loss in cancer patients that results from tumor-induced energy wasting, is a serious problem that interferes with response to treatment and affects quality of life. Recent studies suggest that thermogenesis of adipose tissues is involved in energy wasting and also point to a link between the atrophy of fat and muscle. Tumor-derived PTHrP has emerged as a key molecule playing multiple roles in cachexia, from fat "browning" factor to potential therapeutic target.
September 2016: Trends in Cancer
https://www.readbyqxmd.com/read/28406396/sirt6-regulates-ras-related-protein-r-ras2-by-lysine-defatty-acylation
#13
Xiaoyu Zhang, Nicole A Spiegelman, Ornella D Nelson, Hui Jing, Hening Lin
The Ras family of GTPases are important in cell signaling and frequently mutated in human tumors. Understanding their regulation is thus important for studying biology and human diseases. Here, we report that a novel posttranslational mechanism, reversible lysine fatty acylation, regulates R-Ras2, a member of the Ras family. SIRT6, a sirtuin with established tumor suppressor function, regulates the lysine fatty acylation of R-Ras2. In mouse embryonic fibroblasts (MEFs), Sirt6 knockout (KO) increased R-Ras2 lysine fatty acylation...
April 13, 2017: ELife
https://www.readbyqxmd.com/read/28402488/evaluation-of-the-24-hour-recall-as-a-reference-instrument-for-calibrating-other-self-report-instruments-in-nutritional-cohort-studies-evidence-from-the-validation-studies-pooling-project
#14
Laurence S Freedman, John M Commins, Walter Willett, Lesley F Tinker, Donna Spiegelman, Donna Rhodes, Nancy Potischman, Marian L Neuhouser, Alanna J Moshfegh, Victor Kipnis, David J Baer, Lenore Arab, Ross L Prentice, Amy F Subar
Calibrating dietary self-report instruments is recommended as a way to adjust for measurement error when estimating diet-disease associations. Because biomarkers available for calibration are limited, most investigators use self-reports (e.g., 24-hour recalls (24HRs)) as the reference instrument. We evaluated the performance of 24HRs as reference instruments for calibrating food frequency questionnaires (FFQs), using data from the Validation Studies Pooling Project, comprising 5 large validation studies using recovery biomarkers...
April 10, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28387836/switching-to-second-line-art-in-relation-to-mortality-in-a-large-tanzanian-hiv-cohort
#15
Claudia Hawkins, Ellen Hertzmark, Donna Spiegelman, Aisa Muya, Nzovu Ulenga, Sehee Kim, Polyna Khudyakov, Beatrice Christian, David Sando, Eric Aris, Wafaie Fawzi
Objectives: In a large cohort of HIV-infected Tanzanians, we assessed: (i) rates of first-line treatment failure and switches to second-line ART; (ii) the effect of switching to second-line ART on death and loss to follow-up; and (iii) treatment outcomes on second-line ART by regimen. Methods: HIV-1-infected adults (≥15 years) initiated on first-line ART between November 2004 and September 2012, and who remained on initial therapy for at least 24 weeks before switching, were studied...
April 6, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28380374/mitochondrial-patch-clamp-of-beige-adipocytes-reveals-ucp1-positive-and-ucp1-negative-cells-both-exhibiting-futile-creatine-cycling
#16
Ambre M Bertholet, Lawrence Kazak, Edward T Chouchani, Marta G Bogaczyńska, Ishan Paranjpe, Gabrielle L Wainwright, Alexandre Bétourné, Shingo Kajimura, Bruce M Spiegelman, Yuriy Kirichok
Cold and other environmental factors induce "browning" of white fat depots-development of beige adipocytes with morphological and functional resemblance to brown fat. Similar to brown fat, beige adipocytes are assumed to express mitochondrial uncoupling protein 1 (UCP1) and are thermogenic due to the UCP1-mediated H(+) leak across the inner mitochondrial membrane. However, this assumption has never been tested directly. Herein we patch clamped the inner mitochondrial membrane of beige and brown fat to provide a direct comparison of their thermogenic H(+) leak (IH)...
April 4, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28379291/heterozygous-pink1-p-g411s-in-rapid-eye-movement-sleep-behaviour-disorder
#17
Ziv Gan-Or, Jennifer A Ruskey, Dan Spiegelman, Isabelle Arnulf, Yves Dauvilliers, Birgit Högl, Christelle Monaca-Charley, Ronald B Postuma, Jacques Y Montplaisir, Guy A Rouleau
No abstract text is available yet for this article.
June 1, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28338828/validity-of-a-dietary-questionnaire-assessed-by-comparison-with-multiple-weighed-dietary-records-or-24-hour-recalls
#18
COMPARATIVE STUDY
Changzheng Yuan, Donna Spiegelman, Eric B Rimm, Bernard A Rosner, Meir J Stampfer, Junaidah B Barnett, Jorge E Chavarro, Amy F Subar, Laura K Sampson, Walter C Willett
The authors evaluated the validity of a 152-item semiquantitative food frequency questionnaire (SFFQ) by comparing it with two 7-day dietary records (7DDRs) or up to 4 automated self-administered 24-hour recalls (ASA24s) over a 1-year period in the women's Lifestyle Validation Study (2010-2012), conducted among subgroups of the Nurses' Health Studies. Intakes of energy and 44 nutrients were assessed using the 3 methods among 632 US women. Compared with the 7DDRs, SFFQ responses tended to underestimate sodium intake but overestimate intakes of energy, macronutrients, and several nutrients in fruits and vegetables, such as carotenoids...
April 1, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28291481/self-reported-visual-quality-of-life-after-combat-ocular-trauma
#19
Andrew McLaughlin, Marcus H Colyer, Denise S Ryan, Rose K Sia, Eric D Weichel, Andrew Spiegelman, S G Eaddy, Robert A Mazzoli, Kraig S Bower
OBJECTIVES: To describe the visual outlook and quality of life of service members after combat ocular trauma. METHODS: In a single-center, prospective observational study of service members sustaining ocular trauma, participants underwent a series of ocular examinations and noninvasive tests, including the National Eye Institute Visual Functioning Questionnaire (VFQ-25). RESULTS: Of the 165 enrolled participants, 137 completed the VFQ-25. The mean VFQ-25 composite score was 74...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28276201/rare-deleterious-variants-in-grhl3-are-associated-with-human-spina-bifida
#20
Philippe Lemay, Patrizia De Marco, Alexandre Emond, Dan Spiegelman, Alexandre Dionne-Laporte, Sandra Laurent, Elisa Merello, Andrea Accogli, Guy A Rouleau, Valeria Capra, Zoha Kibar
Neural tube defects, including spina bifida, are among the most common birth defects caused by failure of neural tube closure during development. They have a complex etiology involving largely undetermined environmental and genetic factors. Previous studies in mouse models have implicated the transcription factor Grhl3 as an important factor in the pathogenesis of spina bifida. In the present study, we conducted a resequencing analysis of GRHL3 in a cohort of 233 familial and sporadic cases of spina bifida...
June 2017: Human Mutation
keyword
keyword
62564
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"