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https://www.readbyqxmd.com/read/28078490/podocalyxin-as-a-major-pluripotent-marker-and-novel-keratan-sulfate-proteoglycan-in-human-embryonic-and-induced-pluripotent-stem-cells
#1
REVIEW
Hidenao Toyoda, Yuko Nagai, Aya Kojima, Akiko Kinoshita-Toyoda
Podocalyxin (PC) was first identified as a heavily sialylated transmembrane protein of glomerular podocytes. Recent studies suggest that PC is a remarkable glycoconjugate that acts as a universal glyco-carrier. The glycoforms of PC are responsible for multiple functions in normal tissue, human cancer cells, human embryonic stem cells (hESCs), and human induced pluripotent stem cells (hiPSCs). PC is employed as a major pluripotent marker of hESCs and hiPSCs. Among the general antibodies for human PC, TRA-1-60 and TRA-1-81 recognize the keratan sulfate (KS)-related structures...
January 11, 2017: Glycoconjugate Journal
https://www.readbyqxmd.com/read/28065609/sexually-dimorphic-differentiation-of-a-c-%C3%A2-elegans-hub-neuron-is-cell-autonomously-controlled-by-a-conserved-transcription-factor
#2
Esther Serrano-Saiz, Meital Oren-Suissa, Emily A Bayer, Oliver Hobert
Functional and anatomical sexual dimorphisms in the brain are either the result of cells that are generated only in one sex or a manifestation of sex-specific differentiation of neurons present in both sexes. The PHC neuron pair of the nematode C. elegans differentiates in a strikingly sex-specific manner. In hermaphrodites the PHC neurons display a canonical pattern of synaptic connectivity similar to that of other sensory neurons, but in males PHC differentiates into a densely connected hub sensory neuron/interneuron, integrating a large number of male-specific synaptic inputs and conveying them to both male-specific and sex-shared circuitry...
January 2, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28064166/sexual-dimorphism-of-body-size-is-controlled-by-dosage-of-the-x-chromosomal-gene-myc-and-by-the-sex-determining-gene-tra-in-drosophila
#3
Kristina Wehr Mathews, Margrith Cavegn, Monica Zwicky
Drosophila females are larger than males. In this paper, we describe how X chromosome dosage drives sexual dimorphism of body size through two means: first, through unbalanced expression of a key X-linked growth regulating gene and second, through female-specific activation of the sex-determination pathway. X-chromosome dosage determines phenotypic sex by regulating the genes of the sex-determining pathway. In the presence of two sets of X-chromosome signal elements (XSEs), Sex-lethal (Sxl) is activated in female (XX) but not male (XY) animals...
January 6, 2017: Genetics
https://www.readbyqxmd.com/read/28063023/vorapaxar-the-current-role-and-future-directions-of-a-novel-protease-activated-receptor-antagonist-for-risk-reduction-in-atherosclerotic-disease
#4
REVIEW
Rebecca J Gryka, Leo F Buckley, Sarah M Anderson
INTRODUCTION: Despite the current standard of care, patients with cardiovascular disease remain at a high risk for recurrent events. Inhibition of thrombin-mediated platelet activation through protease-activated receptor-1 antagonism may provide reductions in atherosclerotic disease beyond those achievable with the current standard of care. OBJECTIVE: Our primary objective is to evaluate the clinical literature regarding the role of vorapaxar (Zontivity™) in the reduction of cardiovascular events in patients with a history of myocardial infarction and peripheral artery disease...
January 6, 2017: Drugs in R&D
https://www.readbyqxmd.com/read/28062625/high-sensitivity-troponin-i-in-stable-patients-with-atherosclerotic-disease-in-the-tra-2%C3%A2-p-timi-50-trial
#5
Alon Eisen, Marc P Bonaca, Petr Jarolim, Benjamin M Scirica, Harvey D White, Michal Tendera, Mikael Dellborg, Jose C Nicolau, Joao Morais, Keith A A Fox, Erin A Bohula, Sabina A Murphy, Eugene Braunwald, David A Morrow
BACKGROUND: Cardiac troponin I, measured with a high-sensitivity assay (hs-TnI), is well-established for risk prediction in acute coronary syndromes. However, its prognostic role in stable atherosclerotic disease, particularly for future myocardial infarction (MI), is less well defined. METHODS: We measured hs-TnI (Abbott ARCHITECT) in 15833 patients with prior MI, ischemic stroke, or peripheral arterial disease from the placebo-controlled Thrombin Receptor Antagonist in Secondary Prevention of Atherothrombotic Ischemic Events (TRA 2°P)-Thrombolysis in Myocardial Infarction (TIMI) 50 trial of the platelet inhibitor vorapaxar, excluding patients with recent MI (<30 days)...
January 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28051019/hemodynamics-in-transplant-renal-artery-stenosis-and-its-alteration-after-stent-implantation-based-on-a-patient-specific-computational-fluid-dynamics-model
#6
Hong-Yang Wang, Long-Shan Liu, Hai-Ming Cao, Jun Li, Rong-Hai Deng, Qian Fu, Huan-Xi Zhang, Ji-Guang Fei, Chang-Xi Wang
BACKGROUND: Accumulating studies on computational fluid dynamics (CFD) support the involvement of hemodynamic factors in artery stenosis. Based on a patient-specific CFD model, the present study aimed to investigate the hemodynamic characteristics of transplant renal artery stenosis (TRAS) and its alteration after stent treatment. METHODS: Computed tomography angiography (CTA) data of kidney transplant recipients in a single transplant center from April 2013 to November 2014 were reviewed...
2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28009074/new-monoclonal-antibodies-to-defined-cell-surface-proteins-on-human-pluripotent-stem-cells
#7
Carmel M O'Brien, Hun S Chy, Qi Zhou, Shiri Blumenfeld, Jack W Lambshead, Xiaodong Liu, Joshua Kie, Bianca D Capaldo, Tung-Liang Chung, Timothy E Adams, Tram Phan, John D Bentley, William J Mckinstry, Karen Oliva, Paul J Mcmurrick, Yu-Chieh Wang, Fernando J Rossello, Geoffrey J Lindeman, Di Chen, Thierry Jarde, Amander T Clark, Helen E Abud, Jane E Visvader, Christian M Nefzger, Jose M Polo, Jeanne F Loring, Andrew L Laslett
The study and application of human pluripotent stem cells (hPSCs) will be enhanced by the availability of well-characterised monoclonal antibodies (mAbs) detecting cell-surface epitopes. Here we report generation of seven new mAbs that detect cell surface proteins present on live and fixed human ES cells (hESCs) and human iPS cells (hiPSCs), confirming our previous prediction that these proteins were present on the cell surface of hPSCs. The mAbs all show a high correlation with POU5F1 (OCT4) expression and other hPSC surface markers (TRA-160 and SSEA-4) in hPSC cultures and detect rare OCT4 positive cells in differentiated cell cultures...
December 23, 2016: Stem Cells
https://www.readbyqxmd.com/read/27997732/the-metalloprotease-sepa-governs-processing-of-accumulation-associated-protein-and-shapes-intercellular-adhesive-surface-properties-in-staphylococcus-epidermidis
#8
Alexandra E Paharik, Marta Kotasinska, Anna Both, Tra-My Hoang, Henning Büttner, Paroma Roy, Paul D Fey, Alexander R Horswill, Holger Rohde
The otherwise harmless skin inhabitant Staphylococcus epidermidis is a major cause of healthcare-associated medical device infections. The species' selective pathogenic potential depends on its production of surface adherent biofilms. Cell wall-anchored protein Aap promotes biofilm formation in S. epidermidis, independently from the polysaccharide intercellular adhesin PIA. Aap requires proteolytic cleavage to act as an intercellular adhesin. Whether and which staphylococcal proteases account for Aap processing is yet unknown...
December 20, 2016: Molecular Microbiology
https://www.readbyqxmd.com/read/27976546/radial-access-optimization-in-the-nascent-post-adoption-era
#9
EDITORIAL
J Hudson Segrest, William B Hillegass
Post-procedural upper extremity dysfunction (UED) remains one of the few potential questions about the overall benefits of the transradial approach (TRA) to endovascular procedures compared to femoral (TFA). Data on UED is limited, but the most comprehensive study curiously shows similar incidence of post-procedural UED with TFA as TRA. The effects of trAnsRadial perCUtaneouS coronary intervention on upper extremity function (ARCUS) study will investigate whether patient characteristics influence radial access outcomes such as UED...
December 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27943381/body-mass-normalization-for-ultrasound-measurements-of-adolescent-lateral-abdominal-muscle-thickness
#10
Pawel Linek, Edward Saulicz, Tomasz Wolny, Andrzej Myśliwiec
OBJECTIVES: The purpose of this study was to determine the value of the allometric parameter for ultrasound measurements of the thickness of the oblique external (OE), internal (OI), and transversus abdominis (TrA) muscles in the adolescent population. The allometric parameter is the slope of the linear regression line between the log transformed body mass and log transformed muscle size measurement. METHODS: The study included 321 adolescents between the ages of 10 and 17, consisting of 160 boys and 161 girls...
December 10, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27938625/presence-of-vascular-endothelial-growth-factor-during-the-first-half-of-ivm-improves-the-meiotic-and-developmental-competence-of-porcine-oocytes-from-small-follicles
#11
Tra M T Bui, Khánh X Nguyễn, Asako Karata, Pilar Ferré, Minh T Trần, Takuya Wakai, Hiroaki Funahashi
The aim of the present study was to investigate the effect of vascular endothelial growth factor (VEGF) on the meiotic and developmental competence of porcine oocytes from small follicles (SF; 0.5-3mm diameter). When cumulus-oocyte complexes (COCs) from medium-sized follicles (MF; 3-6mm diameter) and SF were cultured for IVM, the maturation rates were significantly higher for oocytes from MF than SF. Concentrations of VEGF in the medium were significantly higher for COCs cultured from MF than SF. When COCs from SF were exposed to 200ngmL-1 VEGF during the first 20h of IVM, the maturation rate improved significantly and was similar to that of oocytes derived from MF...
December 12, 2016: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/27934604/generation-of-induced-pluripotent-stem-cells-ipscs-stably-expressing-crispr-based-synergistic-activation-mediator-sam
#12
Kai Xiong, Yan Zhou, Poul Hyttel, Lars Bolund, Kristine Karla Freude, Yonglun Luo
Human fibroblasts were engineered to express the CRISPR-based synergistic activation mediator (SAM) complex: dCas9-VP64 and MS2-P65-HSF1. Two induced pluripotent stem cells (iPSCs) clones expressing SAM were established by transducing these fibroblasts with lentivirus expressing OCT4, SOX2, KLF4 and C-MYC. We have validated that the reprogramming cassette is silenced in the SAM iPSC clones. Expression of pluripotency genes (OCT4, SOX2, LIN28A, NANOG, GDF3, SSEA4, and TRA-1-60), differentiation potential to all three germ layers, and normal karyotypes are validated...
November 17, 2016: Stem Cell Research
https://www.readbyqxmd.com/read/27921153/prone-transradial-catheterization-for-combined-single-session-transarterial-embolization-and-percutaneous-posterior-approach-cryoablation-of-solid-neoplasms
#13
Jeffrey Forris Beecham Chick, Casey Branach, Bill Saliba Majdalany, J Matthew Meadows, Douglas A Murrey, Wael A Saad, Minhaj S Khaja, Kyle J Cooper, Matthew L Osher, Ravi Nara Srinivasa
Transradial access (TRA) has been associated with improved post-procedure hemostasis and patient satisfaction, and decreased hemorrhagic complications, sedation requirements, recovery times, and procedure-related costs when compared with traditional transfemoral catheterization. Supine TRA has been described for the treatment of myocardial infarctions, aortoiliac and femoropopliteal stenoses, and a variety of neoplasms. This original research describes prone transradial catheterization to facilitate combined single-session transarterial embolization and percutaneous cryoablation of solid neoplasms from a posterior approach without repositioning...
December 5, 2016: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/27896241/local-administration-of-tranexamic-acid-during-prostatectomy-surgery-effects-on-reducing-the-amount-of-bleeding
#14
Pejman Pourfakhr, Elham Gatavi, Shahram Gooran, Farhad Etezadi, Mohamad Reza Khajavi, Reza Pourroustaei, Reza Shariat Moharari, Atabak Najafi
BACKGROUND: One of the issues in prostatectomy surgery is bleeding. Although tranexamic acid (TRA) is an antifibrinolytic agent for reducing bleeding, controversies surround its use. OBJECTIVES: In this study, the effect of local administration of TRA on reducing bleeding during prostatectomy surgery was evaluated. METHODS: A total of 186 patients who underwent prostatectomy surgery were assessed in this clinical trial study. Patients were divided randomly into two groups...
November 2016: Nephro-urology Monthly
https://www.readbyqxmd.com/read/27894366/evolution-of-host-range-in-the-follicle-mite-demodex-kutzeri
#15
Michael F Palopoli, VAN Tra, Kassey Matoin, Phuong D Mac
The sequences of four mitochondrial genes were determined for Demodex mites isolated from two distantly related species within the family Cervidae, and identified morphologically as belonging to the species Demodex kutzeri. The sequences were used to test the hypothesis that Demodex are strictly host-specific, and hence cospeciate with their hosts: (1) The estimated divergence time between mites found on elk vs humans agreed closely with a previous estimate of the time that these host species last shared a common ancestor, suggesting cospeciation of mites and hosts, at least over long evolutionary timescales...
November 29, 2016: Parasitology
https://www.readbyqxmd.com/read/27879222/an-integration-free-virus-free-rhesus-macaque-induced-pluripotent-stem-cell-line-ripsc89-from-embryonic-fibroblasts
#16
Enrique Sosa, Rachel Kim, Ernesto J Rojas, Linzi Hosohama, Jon D Hennebold, Kyle E Orwig, Amander T Clark
We generated a rhesus macaque induced pluripotent stem cell (riPSC) line, riPSC89, from rhesus embryonic fibroblasts (REFs). Fibroblasts were expanded from the skin of a rhesus macaque embryo at embryonic day 47. REFs and riPSCs had a normal male (42, XY) karyotype. The riPSC89 line was positive for markers of self-renewal including OCT4, NANOG, TRA-1-81 and SSEA4. Pluripotency was demonstrated through the generation of teratomas using transplantation into immunocompromised mice. The riPSC89 line may be a useful non-human primate resource to uncover developmental origins of disease, or used as a basic model to understand lineage specification in the primate embryo...
September 2016: Stem Cell Research
https://www.readbyqxmd.com/read/27879213/generation-of-hexa-deficient-hipscs-from-fibroblasts-of-a-tay-sachs-disease-patient
#17
Zhong Liu, Rui Zhao
Human iPSC line TSD-01-hiPSC was generated from fibroblasts of a patient with infantile Tay-Sachs disease (TSD). The patient is compound heterozygous at the HEXA gene by carrying a 1278insTATC allele and an IVS12+1G>C allele. STEMCCA lentivirus, which expresses OCT4, SOX2, KLF4, and c-MYC from a polycistronic transcript, were used for reprogramming. TSD-01-hiPSC express pluripotency markers such as OCT4, SOX2, NANOG, Tra-1-60, and alkaline phosphatase, and can differentiate into tissues from all the three embryonic germ layers...
September 2016: Stem Cell Research
https://www.readbyqxmd.com/read/27873029/induction-of-pluripotency-in-long-term-cryopreserved-human-neonatal-fibroblasts-in-feeder-free-condition
#18
Maria Csobonyeiova, Lubica Krajciova, Andreas Nicodemou, Stefan Polak, Lubos Danisovic
A novel approach for stem cell generation is the attempt to induce conversion of the adult somatic cells into pluripotent stem cells so called induced pluripotent stem cells (iPSCs) by introducing specific transcription factors. iPSCs have two essential cell characteristics, they are pluripotent and posses long term cell-renewal capacity. Additionally, iPSCs can be derived from patient-specific somatic cells, thus bypassing ethical and immunological issues. The aim of our study was to reprogram long-term cryopreserved human neonatal fibroblasts by new method using lipid nano-particle technology (Lipofectamine 3000 reagent transfection system) in combination with Epi 5 reprogramming vectors...
November 21, 2016: Cell and Tissue Banking
https://www.readbyqxmd.com/read/27870393/sexual-modulation-of-sex-shared-neurons-and-circuits-in-caenorhabditis-elegans
#19
REVIEW
Douglas S Portman
Studies using the nematode C. elegans have provided unique insights into the development and function of sex differences in the nervous system. Enabled by the relative simplicity of this species, comprehensive studies have solved the complete cellular neuroanatomy of both sexes as well as the complete neural connectomes of the entire adult hermaphrodite and the adult male tail. This work, together with detailed behavioral studies, has revealed three aspects of sex differences in the nervous system: sex-specific neurons and circuits; circuits with sexually dimorphic synaptic connectivity; and sex differences in the physiology and functions of shared neurons and circuits...
January 2, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/27869903/-approccio-al-paziente-musulmano-ospedalizzato-durante-il-ramadan-considerazioni-bioetico-cliniche
#20
Antonio Leo, Donatella La Tegola, Giancarlo Logroscino, Felice Carabellese
RIASSUNTO. La multietnicità̀ porta gli operatori sanitari a dover acquisire nuovi strumenti di carattere linguistico, culturale e sociale al fine di rispondere ai bisogni di una così variegata utenza dei servizi sanitari. La causa della compresenza di diverse culture nel nostro Paese è da ricondurre ai flussi immigratori degli ultimi anni. La convivenza di individui di diversa etnia nel nostro territorio nazionale costringe i sanitari a considerare problemi antropologici, morali, religiosi e politici sottesi a popoli e culture lontane dalla nostra...
September 2016: Rivista di Psichiatria
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