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https://www.readbyqxmd.com/read/29149604/nrf1-is-an-er-membrane-sensor-that-is-central-to-cholesterol-homeostasis
#1
Scott B Widenmaier, Nicole A Snyder, Truc B Nguyen, Alessandro Arduini, Grace Y Lee, Ana Paula Arruda, Jani Saksi, Alexander Bartelt, Gökhan S Hotamisligil
Cholesterol is a critical nutrient requiring tight constraint in the endoplasmic reticulum (ER) due to its uniquely challenging biophysical properties. While the mechanisms by which the ER defends against cholesterol insufficiency are well described, it remains unclear how the ER senses and effectively defends against cholesterol excess. Here, we identify the ER-bound transcription factor nuclear factor erythroid 2 related factor-1, Nrf1/Nfe2L1, as a critical mediator of this process. We show that Nrf1 directly binds to and specifically senses cholesterol in the ER through a defined domain and that cholesterol regulates Nrf1 turnover, processing, localization, and activity...
November 16, 2017: Cell
https://www.readbyqxmd.com/read/29149334/reassessing-the-likely-harms-to-kidney-vendors-in-regulated-organ-markets
#2
Luke Semrau
Julian Koplin, drawing extensively on empirical data, has argued that vendors, even in well-regulated kidney markets, are likely to be significantly harmed. I contend that his reasoning to this conclusion is dangerously mistaken. I highlight two failures. First, Koplin is insufficiently attentive to the differences between existing markets and the regulated markets proposed by advocates. On the basis of this error, he wrongly concludes that many harms will persist even in a well-regulated system. Second, Koplin misunderstands the utilitarian assessment of the market...
November 15, 2017: Journal of Medicine and Philosophy
https://www.readbyqxmd.com/read/29149263/vitamin-d-and-assisted-reproductive-treatment-outcome-a-systematic-review-and-meta-analysis
#3
Justin Chu, Ioannis Gallos, Aurelio Tobias, Bee Tan, Abey Eapen, Arri Coomarasamy
STUDY QUESTION: Is serum vitamin D associated with live birth rates in women undergoing ART? SUMMARY ANSWER: Women undergoing ART who are replete in vitamin D have a higher live birth rate than women who are vitamin D deficient or insufficient. WHAT IS KNOWN ALREADY: Vitamin D deficiency has been associated with an increased risk of abnormal pregnancy implantation as well as obstetric complications such as pre-eclampsia and fetal growth restriction...
November 15, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29149187/epidemiology-and-impact-on-all-cause-mortality-of-sepsis-in-norwegian-hospitals-a-national-retrospective-study
#4
Siri Tandberg Knoop, Steinar Skrede, Nina Langeland, Hans Kristian Flaatten
BACKGROUND: Although sepsis is the leading cause of death from infection, there are few population-level epidemiological sepsis reports. The impact of sepsis-related deaths on all-cause hospital mortality is insufficiently described, in particular in Europe where data are non-existent. The objective of this study was to provide nationwide epidemiological results on sepsis hospitalizations in Norway and to estimate sepsis' contribution to overall hospital mortality in a European setting...
2017: PloS One
https://www.readbyqxmd.com/read/29149170/vibrio-parahaemolyticus-vtra-is-a-membrane-bound-regulator-and-is-activated-via-oligomerization
#5
Ryu Okada, Shigeaki Matsuda, Tetsuya Iida
Vibrio parahaemolyticus is a Gram-negative pathogen that causes food-borne gastroenteritis. A major virulence determinant of the organism is a type III secretion system (T3SS2) encoded on a pathogenicity island, Vp-PAI. Vp-PAI gene expression is regulated by two transcriptional regulators, VtrA and VtrB, whose N-terminal regions share homology with an OmpR-family DNA-binding domain. VtrA activates the gene expression of VtrB, which in turn activates Vp-PAI gene expression; however, the mechanism of this transcriptional activation by VtrA is not well understood...
2017: PloS One
https://www.readbyqxmd.com/read/29149151/sacroplasty-a-ten-year-analysis-of-prospective-patients-treated-with-percutaneous-sacroplasty-literature-review-and-technical-considerations
#6
Michael E Frey, Christopher Warner, Samuel M Thomas, Karan Johar, Heathpaul Singh, Maheen S Mohammad, Douglas P Beall
BACKGROUND: The treatment of sacral fractures has evolved since its first description in 1982. Several techniques for sacral augmentation have been developed since 2001, and the rate of improvement is rapid with over 50% reduction in pain achieved prior to post-procedure discharge of the patient. Pain reduction occurs primarily within the first 3 months and is sustained at 12 months; however, the long-term outcomes have not previously been studied. OBJECTIVES: We aim to evaluate the long-term efficacy of sacroplasty versus non-surgical management (NSM) in treating sacral insufficiency fractures (SIFs), including the effect on pain relief, opioid and other analgesic use, patient satisfaction, and complication rates...
November 2017: Pain Physician
https://www.readbyqxmd.com/read/29149143/efficacy-of-magnesium-sulfate-added-to-local-anesthetic-in-a-transversus-abdominis-plane-block-for-analgesia-following-total-abdominal-hysterectomy-a-randomized-trial
#7
Kelany A Abd-Elsalam, Khaled M Fares, Montaser A Mohamed, Mohamed F Mohamed, Ahmad M Abd El-Rahman, Moaaz M Tohamy
BACKGROUND: Major abdominal surgeries are associated with severe pain, which can affect respiratory and cardiac functions if insufficiently treated; this increases postoperative morbidity. OBJECTIVE: We aim at evaluating the efficacy of magnesium sulfate as an adjuvant to local anesthetic in an ultrasound-guided transversus abdominis plane (TAP) block for postoperative analgesia in total abdominal hysterectomy. STUDY DESIGN: A prospective, randomized, double-blinded clinical trial...
November 2017: Pain Physician
https://www.readbyqxmd.com/read/29149073/micronutrient-deficiencies-among-breastfeeding-infants-in-tanzania
#8
Alexandra L Bellows, Emily R Smith, Alfa Muhihi, Christina Briegleb, Ramadhani A Noor, Salum Mshamu, Christopher Sudfeld, Honorati Masanja, Wafaie W Fawzi
Infant mortality accounts for the majority of child deaths in Tanzania, and malnutrition is an important underlying cause. The objectives of this cross-sectional study were to describe the micronutrient status of infants in Tanzania and assess predictors of infant micronutrient deficiency. We analyzed serum vitamin D, vitamin B12, folate, and ferritin levels from 446 infants at two weeks of age, 408 infants at three months of age, and 427 mothers three months post-partum. We used log-Poisson regression to estimate relative risk of being deficient in vitamin D and vitamin B12 for infants in each age group...
November 17, 2017: Nutrients
https://www.readbyqxmd.com/read/29149050/combining-a-disturbance-observer-with-triple-loop-control-based-on-mems-accelerometers-for-line-of-sight-stabilization
#9
Yong Luo, Yongmei Huang, Chao Deng, Yao Mao, Wei Ren, Qiongyan Wu
In the CCD-based fine tracking optical system (FTOS), the whole disturbance suppression ability (DSA) is the product of the inner loop and outer position loop. Traditionally, high sampling fiber-optic gyroscopes (FOGs) are added to the platform to stabilize the line-of-sight (LOS). However, because of the FOGs' high cost and relatively big volume relative to the back narrow space of small rotating mirrors, we attempt in this work to utilize a cheaper and smaller micro-electro-mechanical system (MEMS) accelerometer to build the inner loop, replacing the FOG...
November 17, 2017: Sensors
https://www.readbyqxmd.com/read/29148712/constructing-repairable-meta-structures-of-ultra-broadband-electromagnetic-absorption-from-3d-printed-patterned-shells
#10
Wei-Li Song, Zhili Zhou, Lichen Wang, Xiao-Dong Cheng, Mingji Chen, Rujie He, Hao-Sen Chen, Yazheng Yang, Daining Fang
Ultra-broadband electromagnetic absorption materials and structures are increasingly attractive for their critical role in competing to the advanced broadband electromagnetic detective systems. Mechanically soft and weak wax-based materials composites are known to be insufficient to serve for practical electromagnetic absorption applications. To break through such barriers, here we developed an innovative strategy to enable the wax-based composites as robust and repairable meta-structures by employing a 3D printed polymeric patterned shell...
November 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29148574/effects-of-high-temperatures-and-drought-during-anthesis-and-grain-filling-period-on-wheat-processing-quality-and-underlying-gluten-structural-changes
#11
Jasna Mastilović, Dragan Živančev, Eva Lončar, Radomir Malbaša, Nikola Hristov, Žarko Kevrešan
BACKGROUND: Climate changes do not only affect wheat yield, but also its quality. The information on this topic gathered so far is somewhat contradictory and insufficient. Climate changes are also affecting wheat indirectly through their influence on the ecosystem, including insects and fungi that affect the wheat technological quality. The aim of this study has been to examine trends in structural and technological changes of wheat quality under conditions typical of climate changes...
November 17, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29148401/vitamin-d-and-systemic-lupus-erythematous-a-review-of-immunological-and-clinical-aspects
#12
REVIEW
Francesca Dall'Ara, Maurizio Cutolo, Laura Andreoli, Angela Tincani, Sabrina Paolino
OBJECTIVES: To review the relationships between vitamin D status and systemic lupus erythematosus (SLE) concerning immunological, clinical aspects and possible effects of supplementation in disease modulation. METHODS: The literature was reviewed up to January 2017 for studies regarding the epidemiology, pathogenesis, immunological aspects, clinical implications and supplementation strategies. The focus was mainly on studies with implications on every day clinical practice...
November 14, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29148206/comparison-of-valvar-and-right-ventricular-function-following-transcatheter-and-surgical-pulmonary-valve-replacement
#13
Wendy F Li, Heidi Pollard, Mohsen Karimi, Jeremy D Asnes, William E Hellenbrand, Veronika Shabanova, Constance G Weismann
OBJECTIVE: Trans-catheter (TC) pulmonary valve replacement (PVR) has become common practice for patients with right ventricular outflow tract obstruction (RVOTO) and/or pulmonic insufficiency (PI). Our aim was to compare PVR and right ventricular (RV) function of patients who received TC vs surgical PVR. DESIGN: Retrospective review of echocardiograms obtained at three time points: before, immediately after PVR, and most recent. PATIENTS: Sixty-two patients (median age 19 years, median follow-up 25 months) following TC (N = 32) or surgical (N = 30) PVR at Yale-New Haven Hospital were included...
November 17, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/29147758/a-systematic-review-assessing-non-pharmacological-conservative-treatment-studies-for-people-with-non-inflammatory-multi-joint-pain-clinical-outcomes-and-research-design-considerations
#14
REVIEW
C Comer, T O Smith, B Drew, R Raja, S R Kingsbury, Philip G Conaghan
To systematically review the evidence to determine the clinical outcomes and the important methodological quality features of interventional studies on adults with non-inflammatory multi-joint pain (MJP). Systematic search of published and unpublished literature using the databases: AMED, CINAHL, MEDLINE, EMBASE, psycINFO, SPORTDiscus, PEDro, OpenGrey, the EU Clinical Trials Register, World Health Organization International Clinical Trial Registry Platform, ClinicalTrials.gov and the ISRCTN registry (search: inception to 19th October 2017)...
November 16, 2017: Rheumatology International
https://www.readbyqxmd.com/read/29147136/step-by-step-strategy-in-the-management-of-residual-hepatolithiasis-using-post-operative-cholangioscopy
#15
REVIEW
Xu-Dong Wen, Tao Wang, Zhu Huang, Hong-Jian Zhang, Bing-Yin Zhang, Li-Jun Tang, Wei-Hui Liu
Hepatolithiasis is the presence of calculi within the intrahepatic bile duct specifically located proximal to the confluence of the left and right hepatic ducts. The ultimate goal of hepatolithiasis treatment is the complete removal of the stone, the correction of the associated strictures and the prevention of recurrent cholangitis. Although hepatectomy could effectively achieve the above goals, it can be restricted by the risk of insufficient residual liver volume, and has a 15.6% rate of residual hepatolithiasis...
November 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/29147134/the-clinical-course-after-glucocorticoid-treatment-in-patients-with-inflammatory-bowel-disease-is-linked-to-suppression-of-the-hypothalamic-pituitary-adrenal-axis-a-retrospective-observational-study
#16
Aghil Ibrahim, Per Dahlqvist, Tommy Olsson, David Lundgren, Mårten Werner, Ole B Suhr, Pontus Karling
Background: Adrenal insufficiency (AI) secondary to treatment with glucocorticoids (GCs) is common in patients with inflammatory bowel disease (IBD), but little is known about the relationship between AI and the clinical course in IBD. The aim of the study was to compare the clinical course in IBD patients with normal adrenal function versus patients with subnormal adrenal function. Methods: A retrospective observational study on 63 patients with IBD who had performed a low-dose short Synacthen test (LDSST) (1 μg) immediately (1-7 days) after a standard course of GCs...
November 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/29147054/service-readiness-of-health-facilities-in-bangladesh-haiti-kenya-malawi-namibia-nepal-rwanda-senegal-uganda-and-the-united-republic-of-tanzania
#17
Hannah H Leslie, Donna Spiegelman, Xin Zhou, Margaret E Kruk
Objective: To evaluate the service readiness of health facilities in Bangladesh, Haiti, Kenya, Malawi, Namibia, Nepal, Rwanda, Senegal, Uganda and the United Republic of Tanzania. Methods: Using existing data from service provision assessments of the health systems of the 10 study countries, we calculated a service readiness index for each of 8443 health facilities. This index represents the percentage availability of 50 items that the World Health Organization considers essential for providing health care...
November 1, 2017: Bulletin of the World Health Organization
https://www.readbyqxmd.com/read/29146725/rare-cause-of-adrenal-insufficiency
#18
Justin Ws Hii, Michael M Page, Andrew Wesseldine
A 72-year-old man presented with weight loss, night sweats and haemoptysis and was hypotensive. CT imaging showed rapidly enlarging bilateral adrenal masses, and he was found to have primary adrenal insufficiency. An adrenal gland biopsy revealed the rare diagnosis of primary adrenal lymphoma. This unique case highlights possible rare causes of adrenal masses and adrenal insufficiency, their investigation and management principles.
November 16, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29146638/preventing-type-2-diabetes-systematic-review-of-studies-of-cost-effectiveness-of-lifestyle-programmes-and-metformin-with-and-without-screening-for-pre-diabetes
#19
Samantha Roberts, Eleanor Barry, Dawn Craig, Mara Airoldi, Gwyn Bevan, Trisha Greenhalgh
OBJECTIVE: Explore the cost-effectiveness of lifestyle interventions and metformin in reducing subsequent incidence of type 2 diabetes, both alone and in combination with a screening programme to identify high-risk individuals. DESIGN: Systematic review of economic evaluations. DATA SOURCES AND ELIGIBILITY CRITERIA: Database searches (Embase, Medline, PreMedline, NHS EED) and citation tracking identified economic evaluations of lifestyle interventions or metformin alone or in combination with screening programmes in people at high risk of developing diabetes...
November 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/29146573/prostanoid-ep4-agonist-l-902-688-activates-ppar%C3%AE-and-attenuates-pulmonary-arterial-hypertension
#20
Hsin-Hsien Li, Hsao-Hsun Hsu, Gwo-Jyh Chang, I-Chen Chen, Wan-Jing Ho, Pei-Chen Hsu, Wei-Jan Chen, Jong-Hwei Su Pang, Chung-Chi Huang, Ying-Ju Lai
Prostacyclin agonists that bind the prostacyclin receptor (IP) to stimulate cyclic adenosine monophosphate (cAMP) synthesis are effective vasodilators for the treatment of idiopathic pulmonary arterial hypertension (IPAH) but this signaling may occur through nuclear peroxisome proliferator-activated receptor-gamma (PPARγ). There is evidence of scant IP and PPARγ expression but stable prostanoid EP4 receptor (EP4) expression in IPAH patients. Both IP and EP4 functionally couple with stimulatory G protein (Gs), which activate signal transduction...
November 16, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
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