keyword
MENU ▼
Read by QxMD icon Read
search

Heterogenity

keyword
https://www.readbyqxmd.com/read/28432983/improved-resolution-and-simplification-of-the-spin-diffusion-based-nmr-method-for-the-structural-analysis-of-mixed-linker-mofs
#1
Andraž Krajnc, Bart Bueken, Dirk De Vos, Gregor Mali
Nuclear magnetic resonance spectroscopy combined with modeling represents a powerful tool for the structural analysis of heterogeneous materials. In this contribution we describe an upgraded method, particularly suited for the structural analysis of mixed-linker metal-organic framework materials, which is based on the measurement and modeling of proton spin diffusion among constituents. We tested the method on a UiO-66-type metal-organic material, in which the organic building units were 1,4-benzenedicarboxylate and trans-1,4-cyclohexanedicarboxylate anions distributed within the framework in an unknown manner...
April 12, 2017: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/28432933/-non-symbolic-magnitude-processing-in-children-with-mathematical-difficulties-a-meta-analysis
#2
Christin Schwenk, Delphine Sasanguie, Jörg-Tobias Kuhn, Sophia Kempe, Philipp Doebler, Heinz Holling
Symbolic and non-symbolic magnitude representations, measured by digit or dot comparison tasks, are assumed to underlie the development of arithmetic skills. The comparison distance effect (CDE) has been suggested as a hallmark of the preciseness of mental magnitude representations. It implies that two magnitudes are harder to discriminate when the numerical distance between them is small, and may therefore differ in children with mathematical difficulties (MD), i.e., low mathematical achievement or dyscalculia...
April 19, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/28432837/identifying-genetic-sources-of-phenotypic-heterogeneity-in-orofacial-clefts-by-targeted-sequencing
#3
Jenna C Carlson, Margaret A Taub, Eleanor Feingold, Terri H Beaty, Jeffrey C Murray, Mary L Marazita, Elizabeth J Leslie
BACKGROUND: Orofacial clefts (OFCs), including nonsyndromic cleft lip with or without cleft palate (NSCL/P), are common birth defects. NSCL/P is highly heterogeneous with multiple phenotypic presentations. Two common subtypes of NSCL/P are cleft lip (CL) and cleft lip with cleft palate (CLP) which have different population prevalence. Similarly, NSCL/P can be divided into bilateral and unilateral clefts, with unilateral being the most common. Individuals with unilateral NSCL/P are more likely to be affected on the left side of the upper lip, but right side affection also occurs...
April 22, 2017: Birth Defects Res
https://www.readbyqxmd.com/read/28432787/presynaptic-morphology-and-vesicular-composition-determine-vesicle-dynamics-in-mouse-central-synapses
#4
Laurent Guillaud, Dimitar Dimitrov, Tomoyuki Takahashi
Transport of synaptic vesicles (SVs) in nerve terminals is thought to play essential roles in maintenance of neurotransmission. To identify factors modulating SV movements, we performed real-time imaging analysis of fluorescently labeled SVs in giant calyceal and conventional hippocampal terminals. Compared with small hippocampal terminals, SV movements in giant calyceal terminals were faster, longer and kinetically more heterogeneous. Morphological maturation of giant calyceal terminals was associated with an overall reduction in SV mobility and displacement heterogeneity...
April 22, 2017: ELife
https://www.readbyqxmd.com/read/28432740/novel-3q27-2-qter-deletion-in-a-patient-with-diamond-blackfan-anemia-and-immunodeficiency-case-report-and-review-of-literature
#5
Ebba Alkhunaizi, Brett Schrewe, Reza Alizadehfar, Catherine Vézina, Grant S Stewart, Nancy Braverman
3q27.2-qter deletion syndromes feature an overlapping set of terminal and interstitial deletions with variable congenital malformations. Diamond-Blackfan anemia (DBA) is etiologically heterogeneous disorder in which one cause is dominant mutations of the RPL35A gene on 3q29. We report a child with a 3q27.2-qter deletion that contains the RPL35A gene. She had clinical and laboratory features consistent with DBA and as well, an unexplained immunodeficiency disorder. Given these unusual findings, we reviewed other patients in the literature with overlapping genomic deletions...
April 21, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28432731/association-between-progressive-hepatic-morphology-changes-on-serial-mr-imaging-and-clinical-outcome-in-primary-sclerosing-cholangitis
#6
Yu Xuan Kitzing, Siobhan A Whitley, Sara S Upponi, Brijesh Srivastava, Graeme Jm Alexander, David J Lomas
INTRODUCTION: Hepatic morphology changes are well described in Primary Sclerosing Cholangitis and characterised by a combination of atrophy and hypertrophy changes. This study investigates the relationship between progression of these changes over time and clinical outcome in patients with PSC. METHODS: Fifty-three patients with PSC (mean age 44, 28 males and 25 females) who underwent serial MRI liver studies at least one year apart were identified. The first and the last MRI studies were selected for the retrospective analysis...
April 22, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28432672/para-atrial-non-acute-mediastinal-hematoma-after-left-atrial-maze-procedure-mimicking-tumor-in-a-patient-with-treated-melanoma
#7
G Schaiberger, D Pucar, V Patel, B Bateson, H Williams, W Bates
INTRODUCTION: The Cox Maze III procedure is considered the gold standard open surgical procedure for management of atrial fibrillation. This article outlines a unique case of a para-atrial mediastinal hematoma following a bilateral thoracoscopic left atrial Maze procedure mimicking malignancy. REPORT: A 60-year-old male, with past history of melanoma, underwent bilateral thoracoscopic left atrial mini maze procedure with radiofrequency energy and exclusion of the left atrial appendage...
April 21, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28432665/systemic-and-microcirculatory-effects-of-blood-transfusion-in-experimental-hemorrhagic-shock
#8
Gonzalo Ferrara, Vanina S Kanoore Edul, Héctor S Canales, Enrique Martins, Carlos Canullán, Gastón Murias, Mario O Pozo, Juan F Caminos Eguillor, María G Buscetti, Can Ince, Arnaldo Dubin
BACKGROUND: The microvascular reperfusion injury after retransfusion has not been completely characterized. Specifically, the question of heterogeneity among different microvascular beds needs to be addressed. In addition, the identification of anaerobic metabolism is elusive. The venoarterial PCO2 to arteriovenous oxygen content difference ratio (Pv-aCO2/Ca-vO2) might be a surrogate for respiratory quotient, but this has not been validated. Therefore, our goal was to characterize sublingual and intestinal (mucosal and serosal) microvascular injury after blood resuscitation in hemorrhagic shock and its relation with O2 and CO2 metabolism...
December 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/28432663/the-vascular-wall-a-plastic-hub-of-activity-in-cardiovascular-homeostasis-and-disease
#9
REVIEW
Cassandra P Awgulewitsch, Linh T Trinh, Antonis K Hatzopoulos
PURPOSE OF REVIEW: This review aims to summarize recent findings regarding the plasticity and fate switching among somatic and progenitor cells residing in the vascular wall of blood vessels in health and disease. RECENT FINDINGS: Cell lineage tracing methods have identified multiple origins of stem cells, macrophages, and matrix-producing cells that become mobilized after acute or chronic injury of cardiovascular tissues. These studies also revealed that in the disease environment, resident somatic cells become plastic, thereby changing their stereotypical identities to adopt proinflammatory and profibrotic phenotypes...
June 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28432659/current-role-of-blood-and-urine-biomarkers-in-the-clinical-care-of-adults-with-congenital-heart-disease
#10
REVIEW
Saurabh Rajpal, Laith Alshawabkeh, Alexander R Opotowsky
PURPOSE OF REVIEW: There is an increasing number of adult patients with congenital heart disease (CHD). While several biomarkers have been validated and integrated into general cardiology clinical practice, these tests are often applied to adults with CHD in the absence of disease-specific validation. Although these patients are often grouped into a single population, there is heterogeneous pathophysiology, variable disease chronicity, extensive multisystem involvement, and a low event rate relative to acquired heart disease...
June 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28432625/synthesis-of-magnetic-cofe2o4-ordered-mesoporous-carbon-nanocomposites-and-application-in-fenton-like-oxidation-of-rhodamine-b
#11
Jing Deng, Yi-Jing Chen, Yu-An Lu, Xiao-Yan Ma, Shan-Fang Feng, Naiyun Gao, Jun Li
CoFe2O4/ordered mesoporous carbon (OMC) nanocomposites were synthesized and tested as heterogeneous peroxymonosulfate (PMS) activator for the removal of rhodamine B. Characterization confirmed that CoFe2O4 nanoparticles were tightly bonded to OMC, and the hybrid catalyst possessed high surface area, pore volume, and superparamagnetism. Oxidation experiments demonstrated that CoFe2O4/OMC nanocomposites displayed favorable catalytic activity in PMS solution and rhodamine B degradation could be well described by pseudo-first-order kinetic model...
April 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28432528/conventional-acupuncture-for-cardiac-arrhythmia-a-systematic-review-of-randomized-controlled-trials
#12
Jing Liu, Si-Nai Li, Lu Liu, Kun Zhou, Yan Li, Xiao-Yun Cui, Jie Wan, Jin-Jin Lu, Yan-Chao Huang, Xu-Sheng Wang, Qian Lin
OBJECTIVE: To exam the effect and safety of conventional acupuncture (CA) on cardiac arrhythmia. METHODS: Nine medical databases were searched until February 2016 for randomized controlled trials. Heterogeneity was measured by Cochran Q test. Meta-analysis was conducted if I(2) was less than 85% and the characteristics of included trials were similar. RESULTS: Nine qualified studies involving 638 patients were included. Only 1 study had definitely low risk of bias, while 7 trials were rated as unclear and 1 as high...
April 22, 2017: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28432278/blood-glucose-concentration-and-risk-of-liver-cancer-systematic-review-and-meta-analysis-of-prospective-studies
#13
Hedong Han, Tianyi Zhang, Zhichao Jin, Honglei Guo, Xin Wei, Yuzhou Liu, Qi Chen, Jia He
The question of whether elevated blood glucose is a risk factor for liver cancer has been intensively studied, yet with inconsistent results. To explore the relationship between blood glucose concentration and risk of liver cancer, we conduct a meta-analysis of prospective studies. Literature search was comprehensively performed using database of PubMed, EMBASE and the Cochrane Library through October 2016. Random-effect models were used to combine the effect estimations. Eight articles containing ten studies with a total of 1975 liver cancer cases were included...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28432257/excess-diffuse-light-absorption-in-upper-mesophyll-limits-co2-drawdown-and-depresses-photosynthesis
#14
Jeffrey Mason Earles, Guillaume Théroux-Rancourt, Matthew E Gilbert, Andrew J McElrone, Craig Brodersen
In agricultural and natural systems, diffuse light can enhance plant primary productivity due to deeper penetration into and greater illumination of the entire canopy. However, for individual sun-grown leaves from three species, photosynthesis is actually less efficient under diffuse compared to direct light. Despite its potential impact on canopy-level productivity, the mechanism for this leaf-level 'diffuse light photosynthetic depression' effect is unknown. Here we investigate if the spatial distribution of light absorption relative to electron transport capacity in sun- and shade-grown H...
April 21, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28432199/phagocytosis-imprints-heterogeneity-in-tissue-resident-macrophages
#15
Noelia A-Gonzalez, Juan A Quintana, Susana García-Silva, Marina Mazariegos, Arturo González de la Aleja, José A Nicolás-Ávila, Wencke Walter, Jose M Adrover, Georgiana Crainiciuc, Vijay K Kuchroo, Carla V Rothlin, Héctor Peinado, Antonio Castrillo, Mercedes Ricote, Andrés Hidalgo
Tissue-resident macrophages display varying phenotypic and functional properties that are largely specified by their local environment. One of these functions, phagocytosis, mediates the natural disposal of billions of cells, but its mechanisms and consequences within living tissues are poorly defined. Using a parabiosis-based strategy, we identified and isolated macrophages from multiple tissues as they phagocytosed blood-borne cellular material. Phagocytosis was circadianally regulated and mediated by distinct repertoires of receptors, opsonins, and transcription factors in macrophages from each tissue...
April 21, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28432133/do-memory-cd4-t-cells-keep-their-cell-type-programming-plasticity-versus-fate-commitment-t-cell-heterogeneity-plasticity-and-selection-in-humans
#16
Federica Sallusto, Antonino Cassotta, Daniel Hoces, Mathilde Foglierini, Antonio Lanzavecchia
The wide range of effector and memory T cells is instrumental for immune regulation and tailored mechanisms of protection against pathogens. Here, we will focus on human CD4 T cells and discuss T-cell plasticity and intraclonal diversification in the context of a progressive and selective model of CD4 T-cell differentiation.
April 21, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28432129/do-memory-cd4-t-cells-keep-their-cell-type-programming-plasticity-versus-fate-commitment-complexities-of-interpretation-due-to-the-heterogeneity-of-memory-cd4-t-cells-including-t-follicular-helper-cells
#17
Shane Crotty
Plasticity is the ability of a cell type to convert to another cell type. There are multiple effector CD4 T-cell subtypes, including TH1, TH2, TH17, TH1*, CD4 CTL, TH9, and TFH cells. It is commonly thought that a CD4 T cell can readily show full plasticity-full conversion from one differentiated cell-and this propensity to plasticity is possessed by memory CD4 T cells. However, there remains no direct demonstration of in vivo-generated resting memory CD4 T-cell conversion to a different subtype on secondary antigen challenge in vivo in an intact animal at the single-cell level...
April 21, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28432076/is-lower-hip-range-of-motion-a-risk-factor-for-groin-pain-in-athletes-a-systematic-review-with-clinical-applications
#18
REVIEW
Igor Tak, Leonie Engelaar, Vincent Gouttebarge, Maarten Barendrecht, Sylvia Van den Heuvel, Gino Kerkhoffs, Rob Langhout, Janine Stubbe, Adam Weir
BACKGROUND: Whether hip range of motion (ROM) is a risk factor for groin pain in athletes is not known. OBJECTIVES: To systematically review the relationship between hip ROM and groin pain in athletes in cross-sectional/case-control and prospective studies. STUDY DESIGN: Systematic review, prospectively registered (PROSPERO) according to PRISMA guidelines. METHODS: Pubmed, Embase, CINAHL and SPORTDiscus were systematically searched up to December 2015...
April 21, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28432052/genomic-instability-in-cancer-teetering-on-the-limit-of-tolerance
#19
REVIEW
Noemi Andor, Carlo C Maley, Hanlee P Ji
Cancer genomic instability contributes to the phenomenon of intratumoral genetic heterogeneity, provides the genetic diversity required for natural selection, and enables the extensive phenotypic diversity that is frequently observed among patients. Genomic instability has previously been associated with poor prognosis. However, we have evidence that for solid tumors of epithelial origin, extreme levels of genomic instability, where more than 75% of the genome is subject to somatic copy number alterations, are associated with a potentially better prognosis compared with intermediate levels under this threshold...
April 21, 2017: Cancer Research
https://www.readbyqxmd.com/read/28432002/mir-429-inhibits-metastasis-by-targeting-kiaa0101-in-soft-tissue-sarcoma
#20
Devyani Samantarrai, Bibekanand Mallick
Soft tissue sarcomas (STS) are a heterogeneous group of rare tumors with high metastatic potential. There being only a handful of publication on metastasis of STS, we investigated the miRNA mediated target gene regulations in modulating the metastatic processes in this cancer. In this study, we amalgamated gene and miRNA expression profiles of high-grade STS samples with miRNA target predictions and identified miR-429 targeting KIAA0101 as a novel pair, which remain unexplored in STS metastasis. We validated their expression in metastatic fibrosarcoma cell line, HT1080 and performed several functional assays using miRNA mimics and KIAA0101 over-expression vector to confirm their role in metastasis...
April 18, 2017: Experimental Cell Research
keyword
keyword
104763
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"