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https://www.readbyqxmd.com/read/28449226/an-integrated-network-analysis-identifies-how-arcab-enables-metabolic-oscillations-in-the-nitric-oxide-detoxification-network-of-escherichia-coli
#1
Sarah A Sacco, Kristin J Adolfsen, Mark P Brynildsen
The virulences of many pathogens depend on their abilities to detoxify the immune antimicrobial nitric oxide (NO•). The functions of bacterial NO• detoxification machinery depend on oxygen (O2 ), with O2 inhibiting some enzymes, whereas others use it as a substrate. Previously, Escherichia coli NO• detoxification was found to be highly attenuated under microaerobic conditions and metabolic oscillations were observed. The oscillations in [NO•] and [O2 ] were found to result from the inhibitory action of NO• on aerobic respiration, the catalytic inactivation of NO• by Hmp (an NO• dioxygenase), and an imbalanced competition for O2 between Hmp and cytochrome terminal oxidase activity...
April 27, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28449114/neuro-symbolic-representation-learning-on-biological-knowledge-graphs
#2
Mona Alshahrani, Mohammed Asif Khan, Omar Maddouri, Akira R Kinjo, Núria Queralt-Rosinach, Robert Hoehndorf
Motivation: Biological data and knowledge bases increasingly rely on Semantic Web technologies and the use of knowledge graphs for data integration, retrieval and federated queries. In the past years, feature learning methods that are applicable to graph-structured data are becoming available, but have not yet widely been applied and evaluated on structured biological knowledge. Results: We develop a novel method for feature learning on biological knowledge graphs...
April 25, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28449106/microbiomeanalyst-a-web-based-tool-for-comprehensive-statistical-visual-and-meta-analysis-of-microbiome-data
#3
Achal Dhariwal, Jasmine Chong, Salam Habib, Irah L King, Luis B Agellon, Jianguo Xia
The widespread application of next-generation sequencing technologies has revolutionized microbiome research by enabling high-throughput profiling of the genetic contents of microbial communities. How to analyze the resulting large complex datasets remains a key challenge in current microbiome studies. Over the past decade, powerful computational pipelines and robust protocols have been established to enable efficient raw data processing and annotation. The focus has shifted toward downstream statistical analysis and functional interpretation...
April 26, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28449091/gwab-a-web-server-for-the-network-based-boosting-of-human-genome-wide-association-data
#4
Jung Eun Shim, Changbae Bang, Sunmo Yang, Tak Lee, Sohyun Hwang, Chan Yeong Kim, U Martin Singh-Blom, Edward M Marcotte, Insuk Lee
During the last decade, genome-wide association studies (GWAS) have represented a major approach to dissect complex human genetic diseases. Due in part to limited statistical power, most studies identify only small numbers of candidate genes that pass the conventional significance thresholds (e.g. P ≤ 5 × 10-8). This limitation can be partly overcome by increasing the sample size, but this comes at a higher cost. Alternatively, weak association signals can be boosted by incorporating independent data. Previously, we demonstrated the feasibility of boosting GWAS disease associations using gene networks...
April 26, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28448883/exploring-the-attitudes-knowledge-and-beliefs-of-nurses-and-midwives-of-the-healthcare-needs-of-the-lgbtq-population-an-integrative-review
#5
REVIEW
Kate Stewart, Pauline O'Reilly
OBJECTIVES: To explore current literature surrounding the knowledge, beliefs and attitudes of nurses and midwives of the healthcare needs of Lesbian, Gay, Bisexual, Transgender and Queer (LGBTQ) patients and their influence on equal and non-discriminatory care for LGBTQ individuals. DESIGN: Systematic integrative review. DATA SOURCES: CINAHL, MEDLINE, PubMed, InterNurse. REVIEW METHODS: This integrative review used Wakefield's (2014) framework to establish the knowledge, beliefs and attitudes of nurses and midwives of the healthcare needs of LGBTQ patients...
April 18, 2017: Nurse Education Today
https://www.readbyqxmd.com/read/28448780/integration-strategies-of-pharmacists-in-primary-care-based-accountable-care-organizations-a-report-from-the-accountable-care-organization-research-network-services-and-education
#6
Tina Joseph, Genevieve M Hale, Sara M Eltaki, Yesenia Prados, Renee Jones, Matthew J Seamon, Cynthia Moreau, Stephanie A Gernant
BACKGROUND: The accountable care organization (ACO) is an innovative health care delivery model centered on value-based care. ACOs consisting of primary care providers are increasingly becoming commonplace in practice; however, medication management remains suboptimal. PROGRAM DESCRIPTION: As experts in medication management, pharmacists perform direct patient care and assist in the transition from one provider to another, which places them in an ideal position to manage multiple aspects of patient care...
May 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28448328/hospice-or-community-network-choices-in-end-of-life-care-in-jamaica
#7
Roger Lee Mendoza
AIM: National and international healthcare agencies and organizations typically attribute slow or haphazard growth in hospice and palliative care in developing countries to various resource constraints. This study provides evidence of the substantial and widening gap between policy advocacy and individual decision-making concerning end-of-life care. It does so by establishing the incentives and risks that underlie choices of patients and providers against the relative scarcity of hospices in these countries...
April 26, 2017: International Journal of Evidence-based Healthcare
https://www.readbyqxmd.com/read/28447622/modern-clinical-research-on-lsd
#8
REVIEW
Matthias E Liechti
All modern clinical studies using the classic hallucinogen lysergic acid diethylamide (LSD) in healthy subjects or patients in the last 25 years are reviewed herein. There were five recent studies in healthy participants and one in patients. In a controlled setting, LSD acutely induced bliss, audiovisual synesthesia, altered meaning of perceptions, derealization, depersonalization, and mystical experiences. These subjective effects of LSD were mediated by the 5-HT2A receptor. LSD increased feelings of closeness to others, openness, trust, and suggestibility...
April 27, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28446914/constructing-integrated-networks-for-identifying-new-secondary-metabolic-pathway-regulators-in-grapevine-recent-applications-and-future-opportunities
#9
Darren C J Wong, José Tomás Matus
Representing large biological data as networks is becoming increasingly adopted for predicting gene function while elucidating the multifaceted organization of life processes. In grapevine (Vitis vinifera L.), network analyses have been mostly adopted to contribute to the understanding of the regulatory mechanisms that control berry composition. Whereas, some studies have used gene co-expression networks to find common pathways and putative targets for transcription factors related to development and metabolism, others have defined networks of primary and secondary metabolites for characterizing the main metabolic differences between cultivars throughout fruit ripening...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28446880/shifts-in-the-gut-microbiota-composition-due-to-depleted-bone-marrow-beta-adrenergic-signaling-are-associated-with-suppressed-inflammatory-transcriptional-networks-in-the-mouse-colon
#10
Tao Yang, Niousha Ahmari, Jordan T Schmidt, Ty Redler, Rebeca Arocha, Kevin Pacholec, Kacy L Magee, Wendi Malphurs, Jennifer L Owen, Gregory A Krane, Eric Li, Gary P Wang, Thomas W Vickroy, Mohan K Raizada, Christopher J Martyniuk, Jasenka Zubcevic
The brain-gut axis plays a critical role in the regulation of different diseases, many of which are characterized by sympathetic dysregulation. However, a direct link between sympathetic dysregulation and gut dysbiosis remains to be illustrated. Bone marrow (BM)-derived immune cells continuously interact with the gut microbiota to maintain homeostasis in the host. Their function is largely dependent upon the sympathetic nervous system acting via adrenergic receptors present on the BM immune cells. In this study, we utilized a novel chimera mouse that lacks the expression of BM beta1/2 adrenergic receptors (b1/2-ARs) to investigate the role of the sympathetic drive to the BM in gut and microbiota homeostasis...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28446682/smartphone-controlled-optogenetically-engineered-cells-enable-semiautomatic-glucose-homeostasis-in-diabetic-mice
#11
REVIEW
Jiawei Shao, Shuai Xue, Guiling Yu, Yuanhuan Yu, Xueping Yang, Yu Bai, Sucheng Zhu, Linfeng Yang, Jianli Yin, Yidan Wang, Shuyong Liao, Sanwei Guo, Mingqi Xie, Martin Fussenegger, Haifeng Ye
With the increasingly dominant role of smartphones in our lives, mobile health care systems integrating advanced point-of-care technologies to manage chronic diseases are gaining attention. Using a multidisciplinary design principle coupling electrical engineering, software development, and synthetic biology, we have engineered a technological infrastructure enabling the smartphone-assisted semiautomatic treatment of diabetes in mice. A custom-designed home server SmartController was programmed to process wireless signals, enabling a smartphone to regulate hormone production by optically engineered cells implanted in diabetic mice via a far-red light (FRL)-responsive optogenetic interface...
April 26, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28446651/how-small-can-the-epileptogenic-region-be-a-case-in-point
#12
Graeme D Jackson, Mangor Pedersen, A Simon Harvey
OBJECTIVE: To present a case that demonstrates that seizures and interictal disturbances can be driven by a small area of functionally abnormal cortex. METHODS: Two novel functional MRI network analysis methods were used to supplement conventional seizure and lesion localization methods: (1) regional homogeneity to quantify local connectivity, or synchrony, with a resolution of less than 1 cm(3) of cortex; and (2) small-worldness to combine information about whole brain network segregation and integration...
April 26, 2017: Neurology
https://www.readbyqxmd.com/read/28446242/activity-of-distinct-growth-factor-receptor-network-components-in-breast-tumors-uncovers-two-biologically-relevant-subtypes
#13
Mumtahena Rahman, Shelley M MacNeil, David F Jenkins, Gajendra Shrestha, Sydney R Wyatt, Jasmine A McQuerry, Stephen R Piccolo, Laura M Heiser, Joe W Gray, W Evan Johnson, Andrea H Bild
BACKGROUND: The growth factor receptor network (GFRN) plays a significant role in driving key oncogenic processes. However, assessment of global GFRN activity is challenging due to complex crosstalk among GFRN components, or pathways, and the inability to study complex signaling networks in patient tumors. Here, pathway-specific genomic signatures were used to interrogate GFRN activity in breast tumors and the consequent phenotypic impact of GRFN activity patterns. METHODS: Novel pathway signatures were generated in human primary mammary epithelial cells by overexpressing key genes from GFRN pathways (HER2, IGF1R, AKT1, EGFR, KRAS (G12V), RAF1, BAD)...
April 26, 2017: Genome Medicine
https://www.readbyqxmd.com/read/28446033/controls-over-spatial-and-seasonal-variations-on-isotopic-composition-of-the-precipitation-along-the-central-and-eastern-portion-of-brazil
#14
Didier Gastmans, Vinícius Santos, Juliana Aparecida Galhardi, João Felipe Gromboni, Ludmila Vianna Batista, Konrad Miotlinski, Hung Kiang Chang, José Silvio Govone
Based on Global Network Isotopes in Precipitation (GNIP) isotopic data set, a review of the spatial and temporal variability of δ(18)O and δ(2)H in precipitation was conducted throughout central and eastern Brazil, indicating that dynamic interactions between Intertropical and South Atlantic Convergence Zones, Amazon rainforest, and Atlantic Ocean determine the variations on the isotopic composition of precipitation over this area. Despite the seasonality and latitude effects observed, a fair correlation with precipitation amount was found...
April 26, 2017: Isotopes in Environmental and Health Studies
https://www.readbyqxmd.com/read/28445781/mitochondrial-ros-control-of-cancer
#15
REVIEW
María Del Pilar Sosa Idelchik, Ulrike Begley, Thomas J Begley, J Andrés Melendez
Mitochondria serve a primary role in energy maintenance but also function to govern levels of mitochondria-derived reactive oxygen species (mROS). ROS have long been established to play a critical role in tumorigenesis and are now considered to be integral to the regulation of diverse signaling networks that drive proliferation, tumor cell survival and malignant progression. mROS can damage DNA, activate oncogenes, block the function of tumor suppressors and drive migratory signaling. The mitochondrion's oxidant scavenging systems including SOD2, Grx2, GPrx, Trx and TrxR are key of the cellular redox tone...
April 23, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28445774/voxresnet-deep-voxelwise-residual-networks-for-brain-segmentation-from-3d-mr-images
#16
REVIEW
Hao Chen, Qi Dou, Lequan Yu, Jing Qin, Pheng-Ann Heng
Segmentation of key brain tissues from 3D medical images is of great significance for brain disease diagnosis, progression assessment and monitoring of neurologic conditions. While manual segmentation is time-consuming, laborious, and subjective, automated segmentation is quite challenging due to the complicated anatomical environment of brain and the large variations of brain tissues. We propose a novel voxelwise residual network (VoxResNet) with a set of effective training schemes to cope with this challenging problem...
April 23, 2017: NeuroImage
https://www.readbyqxmd.com/read/28445605/high-throughput-cell-mechanical-phenotyping-for-label-free-titration-assays-of-cytoskeletal-modifications
#17
Stefan Golfier, Philipp Rosendahl, Alexander Mietke, Maik Herbig, Jochen Guck, Oliver Otto
The mechanical fingerprint of cells is inherently linked to the structure of the cytoskeleton and can serve as a label free marker for cell homeostasis or pathologic states. How cytoskeletal composition affects the physical response of cells to external loads has been intensively studied with a spectrum of techniques, yet quantitative and statistically powerful investigations in the form of titration assays are hampered by the low throughput of most available methods. In this study, we employ real-time deformability cytometry (RT-DC), a novel microfluidic tool to examine the effects of biochemically modified F-actin and microtubule stability and nuclear chromatin structure on cell deformation in a human leukemia cell line (HL60)...
April 26, 2017: Cytoskeleton
https://www.readbyqxmd.com/read/28444494/imaging-of-pancreatic-cystic-lesions-with-confocal-laser-endomicroscopy-an-ex-vivo-pilot-study
#18
Abdurrahman Kadayifci, Mustafa Atar, Michelle Yang, Carlos Fernandez-Del Castillo, Mari Mino-Kenudson, William R Brugge
BACKGROUND: The differential diagnosis of pancreatic cystic lesions (PCLs) is an increasingly common clinical challenge. Confocal laser endomicroscopy (CLE) may differentiate PCLs by imaging of the cyst wall. However, clinical experience is still limited, and better image definition and characterization of the cyst wall in a spectrum of cysts are needed. This experimental study aimed to expose detailed imaging characteristics of PCLs by CLE. METHODS: Patients who underwent surgery of a PCL were enrolled...
April 25, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28444222/feronia-receptor-kinase-at-the-crossroad-of-hormone-signaling-and-stress-responses
#19
Hongdong Liao, Renjie Tang, Xin Zhang, Sheng Luan, Feng Yu
Plant receptor-like kinases (RLKs) are involved in nearly all aspects of plant life including growth, development and stress response. Recent studies show that FERONIA (FER), a CrRLK1L subfamily member, is a versatile regulator of cell expansion and serves as a signaling node mediating crosstalks among multiple phytohormones. As a receptor for the RALF (Rapid Alkalinization Factor) peptide ligand, FER triggers a downstream signaling cascade that leads to a rapid cytoplasmic calcium increase and inhibition of cell elongation in plants...
April 19, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28444052/healthcare-regions-and-their-care-networks-an-organizational-systemic-model-for-sus
#20
Lenir Santos
This paper describes a comprehensive effort to develop studies regarding Brazil's Unified Healthcare System (SUS), as a result of the combination of public services in a network that follows a region-based rationale (tripartite organization). The SUS emerges from such an integration and should be organized as such. The intention is to demonstrate that this type of organization is essential, given that Brazil is organized as a Federation, and all three governmental levels are, in a broad sense, equally responsible for healthcare...
April 2017: Ciência & Saúde Coletiva
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