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https://www.readbyqxmd.com/read/29771604/association-of-the-placental-vegf-promoter-polymorphisms-and-vegf-mrna-expression-with-preeclampsia
#1
Farshid Keshavarzi, Mahnaz Shahrakipoor, Batool Teimoori, Minoo Yaghmaei, Mehrnaz Narooei-Nejad, Ava Rasooli, Saeedeh Salimi
BACKGROUND: Preeclampsia (PE), is a pregnancy-specific complication with the placental origin which associated with altered expression of angiogenic factors. Vascular Endothelial Growth Factor (VEGF), is a growth and hypoxia-induced factor which contributes to the regulation of various processes. The present study has investigated the association of the placental VEGF -634G/C (rs2010963), -1154G/A (rs1570360), and -2549 I/D (18bpindel) polymorphisms in the promoter region with VEGF mRNA expression in PE women and control group...
May 17, 2018: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/29762932/pulmonary-hypertension-as-a-possible-cause-of-paradoxical-low-flow-low-gradient-aortic-stenosis
#2
Yuta Watanabe, Haruhiko Higashi, Katsuji Inoue, Jun Aono, Takafumi Okura, Jitsuo Higaki, Shuntaro Ikeda
Paradoxical low-flow, low-gradient aortic stenosis (LFLG AS) is recognized as a subtype of aortic stenosis. A small left ventricular (LV) cavity with marked LV concentric remodeling leads to a reduced stroke volume in this condition. The case is reported of a paradoxical LFLG AS patient who was undergoing treatment for pulmonary hypertension (PH) and interstitial pneumonia associated with scleroderma. Echocardiography demonstrated enlargement of the right ventricle and a diminished LV cavity. Moreover, the aortic valve opening was restricted despite a preserved LV ejection fraction (61%)...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29755999/prescribing-pattern-and-prescription-writing-quality-of-antineoplastic-agents-in-the-capital-city-of-a-middle-income-developing-country
#3
Maryam Taghizadeh-Ghehi, Asiyeh Amouei, Ava Mansouri, Aarefeh Jafarzadeh Kohneloo, Molouk Hadjibabaie
Objective: Cancer is a global health concern with growing incidence worldwide. Chemotherapy is the main treatment modality in many malignancies. This study aimed at evaluation of antineoplastic prescribing pattern and prescription-writing quality in the capital city of Iran. Methods: All dispensed chemotherapy prescriptions by four main authorized pharmacies in Tehran during 1 month were targeted. Prescriptions with no antineoplastic medications or written by specialties other than oncology-related fields were excluded from the study...
January 2018: Journal of Research in Pharmacy Practice
https://www.readbyqxmd.com/read/29746093/profiling-the-serum-protein-corona-of-fibrillar-human-islet-amyloid-polypeptide
#4
Emily H Pilkington, Ove Johan Ragnar Gustafsson, Yanting Xing, Juan Hernandez-Fernaud, Cleidi Zampronio, Aleksandr Kakinen, Ava Faridi, Feng Ding, Paul Wilson, Pu Chun Ke, Thomas P Davis
Amyloids may be regarded as native nanomaterials that form in the presence of complex protein mixtures. By drawing an analogy with the physicochemical properties of nanoparticles in biological fluids, we hypothesized that amyloids should form a protein corona in vivo that would imbue the underlying amyloid with a modified biological identity. To explore this hypothesis we characterized the protein corona of human islet amyloid polypeptide (IAPP) fibrils in FBS using two complementary methodologies developed herein; quartz crystal microbalance and 'centrifugal capture', coupled with nano-liquid chromatography tandem mass spectroscopy...
May 10, 2018: ACS Nano
https://www.readbyqxmd.com/read/29742864/atorvastatin-in-vivo-synergy-with-metronidazole-as-anti-blastocystis-therapy
#5
Maha M A Basyoni, Shawky A Fouad, Marwa F Amer, Ahmed Fathy Amer, Dalia Ibrahim Ismail
Blastocystis is an enteric Straminopile in tropical, subtropical and developing countries. Metronidazole has been a chemotheraputic for blastocystosis. Failures in its regimens were reported and necessitate new studies searching for alternative therapeutic agents. Aim of current study is to investigate potential effects of Atorvastatin (AVA) compared to the conventional chemotherapeutic MTZ in experimentally Blastocystis -infected mice. Anti- Blastocystis efficacy of AVA was evaluated parasitologically, histopathologically and by transmission electron microscopy using MTZ (10 mg/kg) as a control...
April 2018: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29742100/the-receptor-protein-tyrosine-phosphatase-clr-1-is-required-for-synaptic-partner-recognition
#6
Aruna Varshney, Kelli Benedetti, Katherine Watters, Raakhee Shankar, David Tatarakis, Doris Coto Villa, Khristina Magallanes, Venia Agenor, William Wung, Fatima Farah, Nebat Ali, Nghi Le, Jacqueline Pyle, Amber Farooqi, Zanett Kieu, Martina Bremer, Miri VanHoven
During neural circuit formation, most axons are guided to complex environments, coming into contact with multiple potential synaptic partners. However, it is critical that they recognize specific neurons with which to form synapses. Here, we utilize the split GFP-based marker Neuroligin-1 GFP Reconstitution Across Synaptic Partners (NLG-1 GRASP) to visualize specific synapses in live animals, and a circuit-specific behavioral assay to probe circuit function. We demonstrate that the receptor protein tyrosine phosphatase (RPTP) clr-1 is necessary for synaptic partner recognition (SPR) between the PHB sensory neurons and the AVA interneurons in C...
May 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29738352/the-effect-of-obesity-on-the-quality-of-bowel-preparation-for-colonoscopy-results-from-a-large-observational-study
#7
Ava B Anklesaria, Elena A Ivanina, Kenechukwu O Chudy-Onwugaje, Kevin Tin, Chaya M Levine, Peter Homel, Mary Rojas, Ira E Mayer, Rabin Rahmani
BACKGROUND: Obesity has been linked to suboptimal bowel preparation but this association has not been conclusively investigated in prospective studies. GOALS: Our objective was to determine whether any relationship exists between obesity as measured by body mass index (BMI) and quality of bowel preparation. STUDY: Adult patients who presented for outpatient colonoscopy at a single urban ambulatory surgery center within a 6-month period and fulfilled inclusion criteria were prospectively enrolled for the study...
May 5, 2018: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/29731168/promoter-of-lncrna-gene-pvt1-is-a-tumor-suppressor-dna-boundary-element
#8
Seung Woo Cho, Jin Xu, Ruping Sun, Maxwell R Mumbach, Ava C Carter, Y Grace Chen, Kathryn E Yost, Jeewon Kim, Jing He, Stephanie A Nevins, Suet-Feung Chin, Carlos Caldas, S John Liu, Max A Horlbeck, Daniel A Lim, Jonathan S Weissman, Christina Curtis, Howard Y Chang
Noncoding mutations in cancer genomes are frequent but challenging to interpret. PVT1 encodes an oncogenic lncRNA, but recurrent translocations and deletions in human cancers suggest alternative mechanisms. Here, we show that the PVT1 promoter has a tumor-suppressor function that is independent of PVT1 lncRNA. CRISPR interference of PVT1 promoter enhances breast cancer cell competition and growth in vivo. The promoters of the PVT1 and the MYC oncogenes, located 55 kb apart on chromosome 8q24, compete for engagement with four intragenic enhancers in the PVT1 locus, thereby allowing the PVT1 promoter to regulate pause release of MYC transcription...
April 25, 2018: Cell
https://www.readbyqxmd.com/read/29730841/grading-of-aortic-stenosis-severity-a-head-to-head-comparison-between-cardiac-magnetic-resonance-imaging-and-echocardiography
#9
Cesare Mantini, Gabriele Di Giammarco, Jacopo Pizzicannella, Sabina Gallina, Fabrizio Ricci, Emilia D'Ugo, Marziale Marchetti, Antonio Raffaele Cotroneo, Nauman Ahmed, Chiara Bucciarelli-Ducci, Armando Tartaro, Raffaele De Caterina
AIM: To prospectively evaluate the accuracy of cardiac magnetic resonance (cMR) imaging for the assessment of aortic valve effective orifice area (EOA) by continuity equation and anatomical aortic valve area (AVA) by direct planimetry, as compared with transthoracic (TTE) and transesophageal (TEE) two-dimensional (2D) echocardiography, respectively. METHODS AND RESULTS: A total of 31 patients (21 men, 10 women, mean age 69 ± 10 years) with moderate-to-severe aortic stenosis (AS) diagnosed by TTE and scheduled for elective aortic valve replacement, underwent both cMR and TEE...
May 5, 2018: La Radiologia Medica
https://www.readbyqxmd.com/read/29730824/gene-therapy-knockdown-of-vegfr2-in-retinal-endothelial-cells-to-treat-retinopathy
#10
Aaron B Simmons, Colin A Bretz, Haibo Wang, Eric Kunz, Kassem Hajj, Carson Kennedy, Zhihong Yang, Thipparat Suwanmanee, Tal Kafri, M Elizabeth Hartnett
Inhibition of vascular endothelial growth factor (VEGF) in retinopathy of prematurity (ROP) raises concerns for premature infants because VEGF is essential for retinovascular development as well as neuronal and glial health. This study tested the hypothesis that endothelial cell-specific knockdown of VEGF receptor 2 (VEGFR2), or downstream STAT3, would inhibit VEGF-induced retinopathy without delaying physiologic retinal vascular development. We developed an endothelial cell-specific lentiviral vector that delivered shRNAs to VEGFR2 or STAT3 and a green fluorescent protein reporter under control of the VE-cadherin promoter...
May 5, 2018: Angiogenesis
https://www.readbyqxmd.com/read/29725025/single-vector-platform-vaccine-protects-against-lethal-respiratory-challenge-with-tier-1-select-agents-of-anthrax-plague-and-tularemia
#11
Qingmei Jia, Richard Bowen, Barbara Jane Dillon, Saša Masleša-Galić, Brennan T Chang, Austin C Kaidi, Marcus A Horwitz
Bacillus anthracis, Yersinia pestis, and Francisella tularensis are the causative agents of Tier 1 Select Agents anthrax, plague, and tularemia, respectively. Currently, there are no licensed vaccines against plague and tularemia and the licensed anthrax vaccine is suboptimal. Here we report F. tularensis LVS ΔcapB (Live Vaccine Strain with a deletion in capB)- and attenuated multi-deletional Listeria monocytogenes (Lm)-vectored vaccines against all three aforementioned pathogens. We show that LVS ΔcapB- and Lm-vectored vaccines express recombinant B...
May 3, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29721704/workup-and-management-of-patients-with-paradoxical-low-flow-low-gradient-aortic-stenosis
#12
REVIEW
Mohamed-Salah Annabi, Marine Clisson, Marie-Annick Clavel, Philippe Pibarot
About 60% of patients with paradoxical low-flow, low-gradient (PLF-LG) aortic stenosis (AS) have a severe disease that justifies aortic valve replacement (AVR). The first step in patients with symptomatic PLF AS should be to rule out measurement errors and treat hypertension. The second step is to distinguish pseudo-severe from true severe AS (TSAS). The third step is to select the optimal treatment modality at the right time. Regarding the second step, projected aortic valve area calculated using stress echocardiography is superior to traditional severity criteria (AVA < 1...
May 2, 2018: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/29720088/three-dimensional-thoracic-aorta-principal-strain-analysis-from-routine-ecg-gated-computerized-tomography-feasibility-in-patients-undergoing-transcatheter-aortic-valve-replacement
#13
Alessandro Satriano, Zachary Guenther, James A White, Naeem Merchant, Elena S Di Martino, Faisal Al-Qoofi, Carmen P Lydell, Nowell M Fine
BACKGROUND: Functional impairment of the aorta is a recognized complication of aortic and aortic valve disease. Aortic strain measurement provides effective quantification of mechanical aortic function, and 3-dimenional (3D) approaches may be desirable for serial evaluation. Computerized tomographic angiography (CTA) is routinely performed for various clinical indications, and offers the unique potential to study 3D aortic deformation. We sought to investigate the feasibility of performing 3D aortic strain analysis in a candidate population of patients undergoing transcatheter aortic valve replacement (TAVR)...
May 2, 2018: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29712787/flp-18-functions-through-the-g-protein-coupled-receptors-npr-1-and-npr-4-to-modulate-reversal-length-in-caenorhabditis-elegans
#14
Ashwani Bhardwaj, Saurabh Thapliyal, Yogesh Dahiya, Kavita Babu
Animal behavior is critically dependent on the activity of neuropeptides. Reversals, one of the most conspicuous behaviors in Caenorhabditis elegans plays an important role in determining the navigation strategy of the animal. Our experiments on hermaphrodite C. elegans show the involvement of a neuropeptide, FLP-18 in modulating reversal length in these hermaphrodites. We show that FLP-18 controls the reversal length by regulating the activity of AVA interneurons through the G-protein coupled neuropeptide receptors, NPR-4 and NPR-1...
April 30, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29707104/the-effects-of-synthesized-rhenium-acetylsalicylate-compounds-on-human-astrocytoma-cell-lines
#15
Hirendra N Banerjee, Deidre Vaughan, Ava Boston, Gabriel Thorne, Gloria Payne, Josiah Sampson, Vinod Manglik, Pola Olczak, Brent V Powell, Angela Winstead, Roosevelt Shaw, Santosh K Mandal
Purpose: Because of the scarcity of suitable brain cancer drugs, researchers are frantically trying to discover novel and highly potent drugs free of side effects and drug-resistance. Rhenium compounds are known to be nontoxic and exhibit no drug resistance. For that reason, we have developed a series of novel rhenium acetylsalicylato (RAC or ASP) complexes to test their cytotoxicity on brain cancer cells. Also we have attempted to explore the DNAbinding properties of these compounds because many drugs either directly or indirectly bind to DNA...
2018: Journal of Cancer Science & Therapy
https://www.readbyqxmd.com/read/29702633/atac-primer-tool-for-targeted-analysis-of-accessible-chromatin
#16
Kathryn E Yost, Ava C Carter, Jin Xu, Ulrike Litzenburger, Howard Y Chang
No abstract text is available yet for this article.
April 27, 2018: Nature Methods
https://www.readbyqxmd.com/read/29702381/nonenzymatic-electrochemical-sensor-based-on-imidazole-functionalized-graphene-oxide-for-progesterone-detection
#17
Ava Gevaerd, Sirlon F Blaskievicz, Aldo J G Zarbin, Elisa S Orth, Márcio F Bergamini, Luiz H Marcolino-Junior
The modification of electrode surfaces has been the target of study for many researchers in order to improve the analytical performance of electrochemical sensors. Herein, the use of an imidazole-functionalized graphene oxide (GO-IMZ) as an artificial enzymatic active site for voltammetric determination of progesterone (P4) is described for the first time. The morphology and electrochemical performance of electrode modified with GO-IMZ were characterized by scanning electron microscopy and cyclic voltammetry, respectively...
April 21, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29701384/endothelial-function-and-vascular-properties-in-severe-aortic-stenosis-before-and-after-aortic-valve-replacement-surgery
#18
Renata Melo, Francisca A Saraiva, Ana Filipa Ferreira, Soraia Moreira, Raquel Moreira, Rui J Cerqueira, Mário J Amorim, Paulo Pinho, André P Lourenço, Adelino F Leite-Moreira
INTRODUCTION: The degenerative process that results in aortic valve stenosis (AS) has pathophysiological features similar to the atherosclerotic process. We therefore hypothesized that, as in atherosclerosis, endothelial and vascular dysfunction could be a pathophysiologic feature of AS. AIM: To evaluate endothelial function before and after aortic valve replacement (AVR) surgery in patients with severe AS. To correlate endothelial function with severity of AS and clinical profile...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29698407/a-novel-echocardiographic-hemodynamic-index-for-predicting-outcome-of-aortic-stenosis-patients-following-transcatheter-aortic-valve-replacement
#19
Altayyeb Yousef, Benjamin Hibbert, Joshua Feder, Jordan Bernick, Juan Russo, Zachary MacDonald, Christopher Glover, Alexander Dick, Munir Boodhwani, Buu-Khanh Lam, Marc Ruel, Marino Labinaz, Ian G Burwash
OBJECTIVE: Transcatheter aortic valve replacement (TAVR) reduces left ventricular (LV) afterload and improves prognosis in aortic stenosis (AS) patients. However, LV afterload consists of both valvular and arterial loads, and the benefits of TAVR may be attenuated if the arterial load dominates. We proposed a new hemodynamic index, the Relative Valve Load (RVL), a ratio of mean gradient (MG) and valvuloarterial impedance (Zva), to describe the relative contribution of the valvular load to the global LV load, and examined whether RVL predicted patient outcome following TAVR...
2018: PloS One
https://www.readbyqxmd.com/read/29695468/misdiagnosis-of-cerebral-vein-thrombosis-in-the-emergency-department
#20
Ava L Liberman, Gino Gialdini, Ekaterina Bakradze, Abhinaba Chatterjee, Hooman Kamel, Alexander E Merkler
BACKGROUND AND PURPOSE: Rates of cerebral venous thrombosis (CVT) misdiagnosis in the emergency department and outcomes associated with misdiagnosis have been underexplored. METHODS: Using administrative data, we identified adults with CVT at New York, California, and Florida hospitals from 2005 to 2013. Our primary outcome was probable misdiagnosis of CVT, defined as a treat-and-release emergency department visit for headache or seizure within 14 days before CVT...
April 25, 2018: Stroke; a Journal of Cerebral Circulation
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