keyword
MENU ▼
Read by QxMD icon Read
search

biological organs

keyword
https://www.readbyqxmd.com/read/28743155/neoadjuvant-chemotherapy-prior-to-radical-cystectomy-for-muscle-invasive-bladder-cancer-with-variant-histology
#1
Malte W Vetterlein, Stephanie A M Wankowicz, Thomas Seisen, Richard Lander, Björn Löppenberg, Felix K-H Chun, Mani Menon, Maxine Sun, Justine A Barletta, Toni K Choueiri, Joaquim Bellmunt, Quoc-Dien Trinh, Mark A Preston
BACKGROUND: Neoadjuvant chemotherapy in pure urothelial bladder cancer provides a significant survival benefit. However, to the authors' knowledge, it is unknown whether this benefit persists in histological variants. The objective of the current study was to assess the effect of neoadjuvant chemotherapy on the probability of non-organ-confined disease and overall survival after radical cystectomy (RC) in patients with histological variants. METHODS: Querying the National Cancer Data Base, the authors identified 2018 patients with histological variants who were undergoing RC for bladder cancer between 2003 and 2012...
July 25, 2017: Cancer
https://www.readbyqxmd.com/read/28742933/gene-expression-is-more-strongly-influenced-by-age-than-caste-in-the-ant-lasius-niger
#2
Eric R Lucas, Jonathan Romiguier, Laurent Keller
Phenotypic plasticity, where a single genome can give rise to different phenotypes, underlies many remarkable features of the natural world and occurs in a wide range of organisms. Understanding the transcriptional differences that underlie plastic phenotypes remains a major unsolved problem in biology. In many ants, females can develop into either queens or workers, two phenotypes with different morphology, behaviour and longevity. In comparison to workers, queens are larger, more fecund and longer-lived. Here, we study gene expression differences between queens and workers in the ant Lasius niger...
July 25, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28742394/assessment-of-proteomic-measures-across-serious-psychiatric-illness
#3
S Charles Schulz, Shauna Overgaard, David J Bond, Rajesh Kaldate
The diagnoses of serious psychiatric illnesses, such as schizophrenia, schizoaffective disorder, and bipolar disorder, rely on the subjective recall and interpretation of often overlapping symptoms, and are not based on the objective pathophysiology of the illnesses. The subjectivity of symptom reporting and interpretation contributes to the delay of accurate diagnoses and limits effective treatment of these illnesses. Proteomics, the study of the types and quantities of proteins an organism produces, may offer an objective biological approach to psychiatric diagnosis...
2017: Clinical Schizophrenia & related Psychoses
https://www.readbyqxmd.com/read/28742084/systematic-tissue-specific-functional-annotation-of-the-human-genome-highlights-immune-related-dna-elements-for-late-onset-alzheimer-s-disease
#4
Qiongshi Lu, Ryan L Powles, Sarah Abdallah, Derek Ou, Qian Wang, Yiming Hu, Yisi Lu, Wei Liu, Boyang Li, Shubhabrata Mukherjee, Paul K Crane, Hongyu Zhao
Continuing efforts from large international consortia have made genome-wide epigenomic and transcriptomic annotation data publicly available for a variety of cell and tissue types. However, synthesis of these datasets into effective summary metrics to characterize the functional non-coding genome remains a challenge. Here, we present GenoSkyline-Plus, an extension of our previous work through integration of an expanded set of epigenomic and transcriptomic annotations to produce high-resolution, single tissue annotations...
July 24, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28742018/dynamic-structure-of-locomotor-behavior-in-walking-fruit-flies
#5
Alexander Y Katsov, Limor Freifeld, Mark Horowitz, Seppe Kuehn, Thomas R Clandinin
The function of the brain is unlikely to be understood without an accurate description of its output, yet the nature of movement elements and their organization remains an open problem. Here, movement elements are identified from dynamics of walking in flies, using unbiased criteria. On one time scale, dynamics of walking are consistent over hundreds of milliseconds, allowing elementary features to be defined. Over longer periods, walking is well described by a stochastic process composed of these elementary features, and a generative model of this process reproduces individual behavior sequences accurately over seconds or longer...
July 25, 2017: ELife
https://www.readbyqxmd.com/read/28741966/the-connections-of-wnt-pathway-components-with-cell-cycle-and-centrosome-side-effects-or-a-hidden-logic
#6
Vítězslav Bryja, Igor Červenka, Lukáš Čajánek
Wnt signaling cascade has developed together with multicellularity to orchestrate the development and homeostasis of complex structures. Wnt pathway components - such as β-catenin, Dishevelled (DVL), Lrp6, and Axin-- are often dedicated proteins that emerged in evolution together with the Wnt signaling cascade and are believed to function primarily in the Wnt cascade. It is interesting to see that in recent literature many of these proteins are connected with cellular functions that are more ancient and not limited to multicellular organisms - such as cell cycle regulation, centrosome biology, or cell division...
July 25, 2017: Critical Reviews in Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28741949/ph-dependence-of-%C3%AE-aminobutyric-acid-iontronic-transport
#7
Maria Seitanidou, Juan Felipe Franco-Gonzalez, Theresia Arbring Sjöström, Igor Zozoulenko, Magnus Berggren, Daniel T Simon
The organic electronic ion pump (OEIP) has been developed as an "iontronic" tool for delivery of biological signaling compounds. OEIPs rely on electrophoretically "pumping" charged compounds, either at neutral or shifted pH, through an ion-selective channel. Significant shifts in pH lead to an abundance of H(+) or OH(-), which are delivered along with the intended substance. While this method has been used to transport various neurotransmitters, the role of pH has not been explored. Here we present an investigation of the role of pH on OEIP transport efficiency using the neurotransmitter γ-aminobutyric acid (GABA) as the model cationic delivery substance...
July 25, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28741893/when-epigenetics-meets-bioengineering-a-material-characteristics-and-surface-topography-perspective
#8
REVIEW
Lena Larsson, Sophia P Pilipchuk, William V Giannobile, Rogerio M Castilho
The field of tissue engineering and regenerative medicine (TE/RM) involves regeneration of tissues and organs using implantable biomaterials. The term epigenetics refers to changes in gene expression that are not encoded in the DNA sequence, leading to remodeling of the chromatin and activation or inactivation of gene expression. Recently, studies have demonstrated that these modifications are influenced not only by biological cues but also by mechanical and topographical signals. This review highlights the current knowledge on emerging approaches in TE/RM with a focus on the effect of materials and topography on the epigenetic expression pattern in cells with potential impacts on modulating regenerative biology...
July 25, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28741248/lessons-learned-from-arsenic-mitigation-among-private-well-households
#9
REVIEW
Yan Zheng
PURPOSE OF REVIEW: Many thousands of research papers have been published on the occurrence, health effects, and mitigation of arsenic in drinking water sourced from groundwater around the world. Here, an attempt is made to summarize this large body of knowledge into a small number of lessons. RECENT FINDINGS: This is an opinion paper reflecting on why we are far from the goal of eliminating this silent and widespread poison to protect the health of many millions...
July 24, 2017: Current Environmental Health Reports
https://www.readbyqxmd.com/read/28741213/geochemical-fractionation-and-pollution-assessment-of-zn-cu-and-fe-in-surface-sediments-from-shadegan-wildlife-refuge-southwest-of-iran
#10
Behnam Heidari Chaharlang, Alireza Riyahi Bakhtiari, Jahangard Mohammadi, Parvin Farshchi
This research focuses on the fractionation and distribution patterns of heavy metals (Zn, Cu, and Fe) in surficial sediments collected from Shadegan Wildlife Refuge, the biggest wetland in southern part of Iran, to provide an overall classification for the sources of metals in the study area using a sequential extraction method. For this purpose, a four-step sequential extraction technique was applied to define the partitioning of the metals into different geochemical phases of the sediment. The results illustrated that the average total level of Zn, Cu, and Fe in surface sediments were 55...
July 25, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28741209/pb-induced-changes-in-roots-of-two-cultivated-rice-cultivars-grown-in-lead-contaminated-soil-mediated-by-smoke
#11
Nazneen Akhtar, Sehresh Khan, Ijaz Malook, Shafiq Ur Rehman, Muhammad Jamil
Nowadays, public concerns regarding deleterious effect of lead (Pb) is on rise due to its abundance and toxic effect on plants and other living organisms. In plants, it has no noticeable biological importance but can cause various morphological, physiological, and biochemical malfunctions. To evaluate the remediating potential of plant-derived smoke (Cymbopogon jwarancusa), a pot culture experiment was designed to investigate the physiological, biochemical, metabolic, and antioxidant parameters of roots in lead (0 (control), 500, 1000, and 1500 ppm)-contaminated soil...
July 25, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28740487/determinants-of-bacterial-morphology-from-fundamentals-to-possibilities-for-antimicrobial-targeting
#12
REVIEW
Muriel C F van Teeseling, Miguel A de Pedro, Felipe Cava
Bacterial morphology is extremely diverse. Specific shapes are the consequence of adaptive pressures optimizing bacterial fitness. Shape affects critical biological functions, including nutrient acquisition, motility, dispersion, stress resistance and interactions with other organisms. Although the characteristic shape of a bacterial species remains unchanged for vast numbers of generations, periodical variations occur throughout the cell (division) and life cycles, and these variations can be influenced by environmental conditions...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28740469/neuroligins-nlg2-and-nlg4-affect-social-behavior-in-drosophila-melanogaster
#13
Kristina Corthals, Alina Sophia Heukamp, Robert Kossen, Isabel Großhennig, Nina Hahn, Heribert Gras, Martin C Göpfert, Ralf Heinrich, Bart R H Geurten
The genome of Drosophila melanogaster includes homologs to approximately one-third of the currently known human disease genes. Flies and humans share many biological processes, including the principles of information processing by excitable neurons, synaptic transmission, and the chemical signals involved in intercellular communication. Studies on the molecular and behavioral impact of genetic risk factors of human neuro-developmental disorders [autism spectrum disorders (ASDs), schizophrenia, attention deficit hyperactivity disorders, and Tourette syndrome] increasingly use the well-studied social behavior of D...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28740403/primary-lung-sarcoma-treated-with-stereotactic-ablative-radiotherapy-a-case-report
#14
Seung-Gu Yeo
Primary lung sarcoma (PLS) is an extremely rare, very aggressive malignancy. Surgical removal is considered the treatment of choice, and patients who have been given conventional radiotherapy have had inferior outcomes. This study is the first describing a case of PLS treated with stereotactic ablative radiotherapy (SABR), which precisely targets a small tumor with a markedly higher biologically effective dose than conventional radiotherapy. The patient was an 82-year-old man who was diagnosed with primary lung leiomyosarcoma based on radiology, pathology, and immunohistochemical examinations...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28739509/proteomic-analysis-of-the-secretome-of-human-bone-marrow-derived-mesenchymal-stem-cells-primed-by-pro-inflammatory-cytokines
#15
Elisa Maffioli, Nonnis Simona, Roberta Angioni, Fabiana Santagata, Bianca Calì, Lucia Zanotti, Armando Negri, Antonella Viola, Gabriella Tedeschi
Mesenchymal stem cells (MSC) represent an impressive opportunity in term of regenerative medicine and immunosuppressive therapy. Although it is clear that upon transplantation MSC exert most of their therapeutic effects through the secretion of bioactive molecules, the effects of a pro-inflammatory recipient environment on MSC secretome have not been characterized. In this study, we used a label free mass spectrometry based quantitative proteomic approach to analyze how pro-inflammatory cytokines modulate the composition of the human MSC secretome...
July 21, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28739138/the-in-silico-zebrafish-matrisome-a-new-tool-to-study-extracellular-matrix-gene-and-protein-functions
#16
Pauline Nauroy, Sandrine Hughes, Alexandra Naba, Florence Ruggiero
Extracellular matrix (ECM) proteins are major components of most tissues and organs. In addition to their crucial role in tissue cohesion and biomechanics, they chiefly regulate various important biological processes during embryonic development, tissue homeostasis and repair. In essence, ECM proteins were defined as secreted proteins that localized in the extracellular space. The characterization of the human and mouse matrisomes provided the first definition of ECM actors by comprehensively listing ECM proteins and classified them into categories...
July 21, 2017: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/28738898/silicanin-1-is-a-conserved-diatom-membrane-protein-involved-in-silica-biomineralization
#17
Alexander Kotzsch, Philip Gröger, Damian Pawolski, Paul H H Bomans, Nico A J M Sommerdijk, Michael Schlierf, Nils Kröger
BACKGROUND: Biological mineral formation (biomineralization) proceeds in specialized compartments often bounded by a lipid bilayer membrane. Currently, the role of membranes in biomineralization is hardly understood. RESULTS: Investigating biomineralization of SiO2 (silica) in diatoms we identified Silicanin-1 (Sin1) as a conserved diatom membrane protein present in silica deposition vesicles (SDVs) of Thalassiosira pseudonana. Fluorescence microscopy of GFP-tagged Sin1 enabled, for the first time, to follow the intracellular locations of a biomineralization protein during silica biogenesis in vivo...
July 24, 2017: BMC Biology
https://www.readbyqxmd.com/read/28738776/graph-based-clustering-of-mirna-sequences
#18
Viviani A Kasahara, Maria do Carmo Nicoletti
MicroRNAs (miRNAs) are approximately 22 nucleotide-long non-coding RNA molecules, that play important roles in gene regulation. They regulate several processes, such as development, metabolism and cell death, among many others. The many miRNAs discovered so far have been divided into biologically representative families, aiming at organizing and systematizing their study so to promote, mainly, a better understanding of their functionalities. Considering that members of the same miRNA family tend to biologically function in similar ways, a well-structured family can help detecting miRNA functions which have not been associated yet with any existing family...
July 24, 2017: MicroRNA
https://www.readbyqxmd.com/read/28738657/a-new-strategy-for-fabrication-of-water-dispersible-and-biodegradable-fluorescent-organic-nanoparticles-with-aie-and-esipt-characteristics-and-their-utilization-for-bioimaging
#19
Dazhuang Xu, Meiying Liu, Hui Zou, Jianwen Tian, Hongye Huang, Qing Wan, Yanfeng Dai, Yuanqing Wen, Xiaoyong Zhang, Yen Wei
Fluorescence probes play a crucial role in optical imaging for visualization of complex biological processes. As compared with conventional organic fluorogens, the probes with aggregation-induced emission (AIE) and excited-state intramolecular proton transfer (ESIPT) characteristics show significant advantages in high quantum yield at concentrated and aggregated state, large Stokes shift and low cytotoxicity. However, the synthesis of AIE-active fluorescent probes through the ESIPT mechanism has received only very limited attention...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738638/mixed-matrix-membranes-incorporated-with-ln-mof-for-selective-and-sensitive-detection-of-nitrofuran-antibiotics-based-on-inner-filter-effect
#20
Feng Zhang, Hua Yao, Yifan Zhao, Xing Li, Gaowei Zhang, Yangyi Yang
The detection of antibiotics is critical and challenging due to the pervasive use of antibiotics had inevitably brought some negative impacts on ecosystem and human health. Herein, we reported an anti-interfere ability enhanced luminescent sensor of lanthanide metal-organic framework (Ln-MOF) filled mixed matrix membranes (MMMs), which combining the processibility of poly(methyl methacrylate) (PMMA) polymer with Ln-MOF of {[Tb2(AIP)2(H2O)10]·(AIP)·4H2O}n (Tb-AIP, where AIP is 5-aminoisophthalate) fillers...
November 1, 2017: Talanta
keyword
keyword
55119
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"