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https://www.readbyqxmd.com/read/28938506/-central-aortic-blood-pressure-important-parameter-in-diagnosis%C3%A2-and-therapy
#1
Martin Middeke
In recent years great emphasis has been placed on the role of central aortic blood pressure as measured non invasively using pulse wave analysis in pathophysiology of cardiovascular diseases and clinical aspects of hypertension. The difference of blood pressure between the central aorta and the brachial artery (amplification) is not constant but varies according to physiological, pathological and pharmacological mechanisms. Central aortic blood pressure is more strongly related to cardiovascular organ damages than does brachial pressure...
September 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28938430/role-of-the-bile-acid-transporter-slc10a1-in-liver-targeting-of-the-lipid-lowering-thyroid-hormone-analog-eprotirome
#2
Simone Kersseboom, Anja L M van Gucht, Alies van Mullem, Giulia Brigante, Stefania Farina, Bo Carlsson, Joanne M Donkers, Stan F J van de Graaf, Robin P Peeters, Theo J Visser
The thyroid hormone (TH) analog eprotirome (KB2115; 3-[[3,5-dibromo-4-[4-hydroxy-3-(1-methylethyl)-phenoxy]-phenyl]-amino]-3-oxopropanoic acid) was developed to lower cholesterol through selective activation of the T3 receptor isoform TRβ1 in the liver. Interestingly, eprotirome shows low uptake in non-hepatic tissues, explaining its lipid-lowering action without adverse extra-hepatic thyromimetic effects. Clinical trials have shown marked decreases in serum cholesterol levels.We explored the transport of eprotirome across the plasma membrane by members of three TH transporter families: monocarboxylate transporters MCT8 and 10, Na-independent organic anion transporters OATP1A2, 1B1, 1B3, 1C1, 2A1 and 2B1, and Na-dependent organic anion transporters SLC10A1-7...
August 17, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938416/pancreatic-histopathology-of-human-monogenic-diabetes-due-to-causal-variants-in-kcnj11-hnf1a-gata6-and-lmna
#3
May Sanyoura, Laura Jacobsen, David Carmody, Daniela Del Gaudio, Gorka Alkorta-Aranburu, Kelly Arndt, Ying Ying Hu, Frances Kobiernicki, Irina Kusmartseva, Mark A Atkinson, Louis H Philipson, Desmond Schatz, Martha Campbell-Thompson, Siri Atma W Greeley
Context: Monogenic diabetes is thought to account for 2% of all diabetes cases but most patients are misdiagnosed as type 1 or type 2 diabetes. To date, little is known about the histopathological features of pancreases from patients with monogenic diabetes. Objective: Retrospective study of the JDRF Network for Pancreatic Organ donors with Diabetes biorepository was used to identify possible cases with monogenic diabetes and to compare effects of genetic variants on pancreas histology...
August 16, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28938158/directional-migration-in-esophageal-squamous-cell-carcinoma-escc-is-epigenetically-regulated-by-set-nuclear-oncogene-a-member-of-the-inhibitor-of-histone-acetyltransferase-complex
#4
Xiang Yuan, Xinshuai Wang, Bianli Gu, Yingjian Ma, Yiwen Liu, Man Sun, Jinyu Kong, Wei Sun, Huizhi Wang, Fuyou Zhou, Shegan Gao
Directional cell migration is of fundamental importance to a variety of biological events, including metastasis of malignant cells. Herein, we specifically investigated SET oncoprotein, a subunit of the recently identified inhibitor of acetyltransferases (INHAT) complex and identified its role in the establishment of front-rear cell polarity and directional migration in Esophageal Squamous Cell Carcinoma (ESCC). We further define the molecular circuits that govern these processes by showing that SET modulated DOCK7/RAC1 and cofilin signaling events...
September 19, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28938124/the-kinetochore-receptor-for-the-cohesin-loading-complex
#5
Stephen M Hinshaw, Vasso Makrantoni, Stephen C Harrison, Adèle L Marston
The ring-shaped cohesin complex brings together distant DNA domains to maintain, express, and segregate the genome. Establishing specific chromosomal linkages depends on cohesin recruitment to defined loci. One such locus is the budding yeast centromere, which is a paradigm for targeted cohesin loading. The kinetochore, a multiprotein complex that connects centromeres to microtubules, drives the recruitment of high levels of cohesin to link sister chromatids together. We have exploited this system to determine the mechanism of specific cohesin recruitment...
September 21, 2017: Cell
https://www.readbyqxmd.com/read/28938087/emerging-opportunities-for-target-discovery-in-rare-cancers
#6
REVIEW
Tanaz Sharifnia, Andrew L Hong, Corrie A Painter, Jesse S Boehm
Rare cancers pose unique challenges to research due to their low incidence. Barriers include a scarcity of tissue and experimental models to enable basic research and insufficient patient accrual for clinical studies. Consequently, an understanding of the genetic and cellular features of many rare cancer types and their associated vulnerabilities has been lacking. However, new opportunities are emerging to facilitate discovery of therapeutic targets in rare cancers. Online platforms are allowing patients with rare cancers to organize on an unprecedented scale, tumor genome sequencing is now routinely performed in research and clinical settings, and the efficiency of patient-derived model generation has improved...
September 21, 2017: Cell Chemical Biology
https://www.readbyqxmd.com/read/28938075/the-human-plasma-proteome-draft-of-2017-building-on-the-human-plasma-peptideatlas-from-mass-spectrometry-and-complementary-assays
#7
Jochen M Schwenk, Gilbert S Omenn, Zhi Sun, David S Campbell, Mark S Baker, Christopher M Overall, Ruedi Aebersold, Robert L Moritz, Eric W Deutsch
Human blood plasma provides a highly accessible window to the proteome of any individual in health and disease. Since its inception in 2002, the Human Proteome Organization's Human Plasma Proteome Project (HPPP) has been promoting advances in the study and understanding of the full protein complement of human plasma and on determining the abundance and modifications of its components. In 2017, we review the history of the HPPP and the advances of human plasma proteomics in general, including several recent achievements...
September 22, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28937739/applications-of-iridium-catalyzed-asymmetric-allylic-substitution-reactions-in-target-oriented-synthesis
#8
Jianping Qu, Günter Helmchen
Metal catalyzed allylic substitution is a cornerstone of organometallic and synthetic chemistry. Enantioselective versions have been developed with catalysts derived from transition metals, most notably molybdenum, nickel, ruthenium, rhodium, iridium, palladium, and copper. The palladium- and the iridium-catalyzed versions have turned out to be particularly versatile in organic synthesis because of the very broad scope of the nucleophile and great functional group compatibility. Assets of the iridium-catalyzed reaction are the formation of branched, chiral products from simple monosubstituted allylic substrates, high degrees of regio- and enantioselectivity, and use of modular, readily available chiral ligands...
September 22, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28937404/genotyping-to-prevent-rh-disease-has-the-time-come
#9
C Ellen van der Schoot, Masja de Haas, Frederik Banch Clausen
PURPOSE OF REVIEW: In this review, we analyzed the current literature on noninvasive fetal RHD typing to answer the question whether the administration of RhIg to prevent D-alloimmunization during pregnancy can be safely guided by fetal RHD typing. RECENT FINDINGS: Recently the first centers that implemented large-scale nationwide fetal RHD typing in the second trimester for targeted RhIg administration have published their studies evaluating the diagnostic accuracy of their screening programs...
September 20, 2017: Current Opinion in Hematology
https://www.readbyqxmd.com/read/28936930/a-transcription-and-translation-protocol-for-sensitive-cross-cultural-team-research
#10
Lauren Clark, Ana Sanchez Birkhead, Cecilia Fernandez, Marlene J Egger
Assurance of transcript accuracy and quality in interview-based qualitative research is foundational for data accuracy and study validity. Based on our experience in a cross-cultural ethnographic study of women's pelvic organ prolapse, we provide practical guidance to set up step-by-step interview transcription and translation protocols for team-based research on sensitive topics. Beginning with team decisions about level of detail in transcription, completeness, and accuracy, we operationalize the process of securing vendors to deliver the required quality of transcription and translation...
October 2017: Qualitative Health Research
https://www.readbyqxmd.com/read/28936805/compound-specific-isotopic-and-congener-specific-analyses-of-polychlorinated-biphenyl-in-the-heat-medium-and-rice-oil-of-the-yusho-incident
#11
Takashi Miyawaki, Mari Sugihara, Shusaku Hirakawa, Tsuguhide Hori, Jumboku Kajiwara, Susumu Katsuki, Chikage Mitoma, Masutaka Furue
Compound-specific isotope analysis (CSIA) can be used to examine the source and transformation processes of organic pollutants in the environment. We performed a carbon stable isotope analysis of polychlorinated biphenyl (PCB) congeners in the PCB heat-transfer medium (heat medium) and the original Kanechlor-400 (KC-400, a commercial brand of PCBs) involved in the Yusho incident. The main purpose is to investigate whether isotope fractionation occurred in the rice oil deodorization process that caused the incident...
September 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28936730/exosomes-nanocarriers-of-biological-messages
#12
Alice Conigliaro, Simona Fontana, Stefania Raimondo, Riccardo Alessandro
Cell-cell communication is crucial to maintain homeostasis in multicellular organism. Cells communicate each other by direct contact or by releasing factors that, soluble or packaged in membrane vesicles, can reach different regions of the organism. To date numerous studies highlighted the existence of several types of extracellular vesicles that, differing for dimension, origin and contents, play a role in physiological and/or pathological processes. Among extracellular vesicles, exosomes are emerging as efficient players to modulate target cells phenotype and as new non-invasive diagnostic and prognostic tools in multiple diseases...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28936729/the-multifaceted-functions-of-exosomes-in-health-and-disease-an-overview
#13
Claudia Arenaccio, Maurizio Federico
Exosomes are extracellular vesicles of 50-150 nm in diameter secreted by basically all cell types. They mediate micro-communication among cells, tissues, and organs under both healthy and disease conditions by virtue of their ability to deliver macromolecules to target cells. Research on exosomes is a rapidly growing field, however many aspects of their biogenesis and functions still await a complete clarification. In our review we summarize most recent findings regarding biogenesis, structure, and functions of exosomes...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28936674/conditional-modulation-of-biological-processes-by-low-temperature-degrons
#14
Nico Dissmeyer
Conditional modulation of biological processes plays key roles in basic and applied research and in translation. It can be achieved on various levels via a multitude of approaches. One of the directions is manipulating target protein levels and activity by transcriptional, posttranscriptional, translational, and posttranslational control. Because in most of these techniques, the synthesis of the target proteins is adjusted to the needs, they all rely on the specific half-life of the target protein and its turn-over...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28936671/use-of-the-cas9-orthologs-from-streptococcus-thermophilus-and-staphylococcus-aureus-for-non-homologous-end-joining-mediated-site-specific-mutagenesis-in-arabidopsis-thaliana
#15
Jeannette Steinert, Carla Schmidt, Holger Puchta
Since the discovery of the CRISPR/Cas system and its in vivo application for site-specific targeted mutagenesis, this technique is wildly used in a great variety of organisms, such as many plant species. Commonly used for this application is the Cas9 enzyme from Streptococcus pyogenes. Here, we describe the application of two Cas9 orthologs from Streptococcus thermophilus and Staphylococcus aureus for targeted non-homologous end-joining mediated mutagenesis in Arabidopsis thaliana. With both orthologs, we could show efficient inheritance of the induced mutations...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28936623/acute-renal-metabolic-effect-of-metformin-assessed-with-hyperpolarised-mri-in-rats
#16
Haiyun Qi, Per M Nielsen, Marie Schroeder, Lotte B Bertelsen, Fredrik Palm, Christoffer Laustsen
AIMS/HYPOTHESIS: Metformin inhibits hepatic mitochondrial glycerol phosphate dehydrogenase, thereby increasing cytosolic lactate and suppressing gluconeogenesis flux in the liver. This inhibition alters cytosolic and mitochondrial reduction-oxidation (redox) potential, which has been reported to protect organ function in several disease states including diabetes. In this study, we investigated the acute metabolic and functional changes induced by metformin in the kidneys of both healthy and insulinopenic Wistar rats used as a model of diabetes...
September 21, 2017: Diabetologia
https://www.readbyqxmd.com/read/28936534/tuneable-nature-of-metal-organic-frameworks-as-heterogeneous-solid-catalysts-for-alcohol-oxidation
#17
Amarajothi Dhakshinamoorthy, Abdullah M Asiri, Hermenegildo Garcia
Selective benzyl alcohol oxidation (BA) to benzaldehyde has been frequently used as a benchmark reaction to evaluate the catalytic activity of metal organic frameworks (MOFs) as oxidation catalysts. Substituted BAs, and aliphatic and allylic alcohols have also been often used as substrates in these studies. In the present review, the current state of the art of MOFs as heterogeneous catalysts for the oxidation of BA and other alcohols is described, grouping the reports according to the nature of the active sites present on the MOFs...
September 22, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28936523/mesoporous-zno-nanocapsules-for-the-induction-of-enhanced-antigen-specific-immunological-responses
#18
Sumbul Afroz, Himadri Medhi, Somedutta Maity, Gillipsie Minhas, Srikanth Battu, Jeevan Giddaluru, Koushi Kumar, Pradip Paik, Nooruddin Khan
The application of nanotechnology in vaccinology has fuelled rapid advancement towards the design and development of nanovaccines. Nanoparticles have been found to enhance vaccine efficacy through the spatiotemporal orchestration of antigen delivery to secondary lymphoid organs and antigen-presentation by Antigen Presenting Cells (APCs) synchronized with stimulation of innate and adaptive immune responses. Metal based nanoparticles (MNPs) have been extensively engineered for the generation of nanovaccines owing to their intrinsic adjuvant-like properties and immunomodulatory functions...
September 22, 2017: Nanoscale
https://www.readbyqxmd.com/read/28936479/surface-coating-of-nanoparticles-reduces-background-inflammatory-activity-while-increasing-particle-uptake-and-delivery
#19
Brittany A Moser, Rachel C Steinhardt, Aaron P Esser-Kahn
In the study of host-pathogen interactions, vaccines and drug delivery, particulate delivery system are widely used to mimic pathogen size, pattern recognition receptor agonist presentation, and target cells or organs. However, some of the polymeric systems used in particulate delivery have inherent inflammatory properties that are variable and nonspecific. These properties enhance their adjuvant activity, but confound the analysis of signaling mechanisms. Here, we present a method for particle coating with minimal background immune activation via passivation of the surface with silica-silane...
February 13, 2017: ACS Biomaterials Science & Engineering
https://www.readbyqxmd.com/read/28936425/gut-dysbiosis-in-animals-due-to-environmental-chemical-exposures
#20
REVIEW
Cheryl S Rosenfeld
The gut microbiome consists of over 10(3)-10(4) microorganism inhabitants that together possess 150 times more genes that the human genome and thus should be considered an "organ" in of itself. Such communities of bacteria are in dynamic flux and susceptible to changes in host environment and body condition. In turn, gut microbiome disturbances can affect health status of the host. Gut dysbiosis might result in obesity, diabetes, gastrointestinal, immunological, and neurobehavioral disorders. Such host diseases can originate due to shifts in microbiota favoring more pathogenic species that produce various virulence factors, such as lipopolysaccharide...
2017: Frontiers in Cellular and Infection Microbiology
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