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https://www.readbyqxmd.com/read/28646826/comparison-of-brca1-expression-between-triple-negative-and-luminal-breast-tumors
#1
Farzaneh Darbeheshti, Pantea Izadi, Amir Nader Emami Razavi, Mir Saeed Yekaninejad, Javad Tavakkoly Bazzaz
Background: Previous studies have suggested that BRCA1 dysregulation has a role in triple-negative phenotypic manifestation. However, differences of BRCA1 expression, as a tumor suppressor gene, have rarely been investigated between luminal and triple-negative breast tumors. Therefore, the present study attempted to compare the BRCA1 expression in triple-negative with luminal breast tumors and its association with the clinicopathologic characteristics of patients. Methods: BRCA1 expression was evaluated by real-time PCR in 26 triple-negative and 27 luminal breast tumors...
June 25, 2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/28646728/evaluation-of-the-impact-of-vasa-previa-on-feto-placental-hormonal-synthesis-and-fetal-growth
#2
Yaakov Melcer, Ron Maymon, Marina Pekar-Zlotin, Orna Levinsohn-Tavor, Josef Tovbin, Eric Jauniaux
INTRODUCTION: A vasa previa (VP) refers to aberrant chorionic vessels which can either connect the chorionic plate to a velamentous cord (type I) or a succenturiate or accessory lobe to the main placental mass (type II). METHODS: We performed retrospective cohort study of 32 singleton pregnancies diagnosed with VP. The levels of maternal serum alpha-fetoprotein (AFP), human chorionic gonadotropin (hCG) and unconjugated estriol (uE3) were measured at 15-18 weeks as part of the triple test screening for Trisomy 21...
June 16, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28646394/the-antihypertensive-efficacy-of-the-triple-fixed-combination-of-perindopril-indapamide-and-amlodipine-the-results-of-the-petra-study
#3
György Ábrahám, Csaba András Dézsi
INTRODUCTION: The etiology of essential hypertension is multifactorial. Therefore, treatment with combinations of antihypertensive agents acting on multiple targets is necessary for successful therapy in the majority of patients. According to the experience and clinical data accumulated so far, combination therapy with three agents from different pharmacological classes is required in approx. 30% of patients in order to achieve long-term blood pressure control. The primary objective of the PETRA study was to evaluate the efficacy of blood pressure (BP) control with once daily administration of the different dosage strengths of the once-daily, triple fixed combination of perindopril, indapamide, and amlodipine...
June 23, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28646122/nintedanib-a-triple-tyrosine-kinase-inhibitor-attenuates-renal-fibrosis-in-chronic-kidney-disease
#4
Feng Liu, Li Wang, Hualin Qi, Jun Wang, Wei Jiang, Yi Wang, Liuqing Xu, Na Liu, Shougang Zhuang
<span style="margin: 0px; color: black; line-height: 200%; font-family: 'Times New Roman',serif; font-size: 12pt;">Nintedanib (BIBF1120) is a triple kinase inhibitor</span><span style="margin: 0px; color: black; line-height: 200%; font-family: 'Times New Roman',serif; font-size: 12pt;"> of </span><span style="margin: 0px; color: black; line-height: 200%; font-family: 'Times New Roman',serif; font-size: 12pt;">platelet derived growth factor receptor (PDGFR), fibroblast growth factor receptors (FGFR)</span><span style="margin: 0px; color: black; line-height: 200%; font-family: 'Times New Roman',serif; font-size: 12pt;">, </span><span style="margin: 0px; color: black; line-height: 200%; font-family: 'Times New Roman',serif; font-size: 12pt;">vascular endothelial growth factor receptor (VEGFR)</span><span style="margin: 0px; color: black; line-height: 200%; font-family: 'Times New Roman',serif; font-size: 12pt;"> and Src family kinase, </span><span style="margin: 0px; color: black; line-height: 200%; font-family: 'Times New Roman',serif; font-size: 12pt;">that has recently been approved by FDA to treat idiopathic pulmonary fibrosis...
June 23, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28645612/il-1%C3%AE-induced-methylation-of-the-estrogen-receptor-er%C3%AE-gene-correlates-with-emt-and-chemoresistance-in-breast-cancer-cells
#5
Aura M Jiménez-Garduño, Mónica G Mendoza-Rodríguez, Daniel Urrutia-Cabrera, María C Domínguez-Robles, Eloy A Pérez-Yépez, Jorge Tonatiuh Ayala-Sumuano, Isaura Meza
Inflammation has been recently acknowledged as a key participant in the physiopathology of oncogenesis and tumor progression. The inflammatory cytokine IL-1β has been reported to induce the expression of markers associated with malignancy in breast cancerous cells through Epithelial-Mesenchymal Transition (EMT). Aggressive breast cancer tumors classified as Triple Negative do not respond to hormonal treatment because they lack three crucial receptors, one of which is the estrogen receptor alpha (ERα). Expression of ERα is then considered a good prognostic marker for tamoxifen treatment of this type of cancer, as the binding of this drug to the receptor blocks the transcriptional activity of the latter...
June 20, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28645492/advances-in-stable-isotope-assisted-labeling-strategies-with-information-science
#6
Takanori Kigawa
Stable-isotope (SI) labeling of proteins is an essential technique to investigate their structures, interactions or dynamics by nuclear magnetic resonance (NMR) spectroscopy. The assignment of the main-chain signals, which is the fundamental first step in these analyses, is usually achieved by a sequential assignment method based on triple resonance experiments. Independently of the triple resonance experiment-based sequential assignment, amino acid-selective SI labeling is beneficial for discriminating the amino acid type of each signal; therefore, it is especially useful for the signal assignment of difficult targets...
June 20, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28645305/high-expression-of-collagen-triple-helix-repeat-containing-1-cthrc1-facilitates-progression-of-oesophageal-squamous-cell-carcinoma-through-mapk-mek-erk-fra-1-activation
#7
Chunni Wang, Zitong Li, Fei Shao, Xueying Yang, Xiaoli Feng, Susheng Shi, Yibo Gao, Jie He
BACKGROUND: Oesophageal cancer is one of the most common malignancies worldwide,and oesophageal squamous cell carcinoma (ESCC) is the predominant histological type both globally and in China. Collagen triple helix repeat containing 1 (CTHRC1) has been found to be upregulated in ESCC. However, its role in tumourigenesis and progression of ESCC remains unclear. METHODS: Using our previous ESCC mRNA profiling data, we screened upregulated genes to identify those required for proliferation...
June 23, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28645265/a-pilot-study-lasek-with-the-triple-a-profile-of-a-mel-90-for-mild-and-moderate-myopia
#8
Yingjun Chen, Dong Yang, Tian Han, Haipeng Xu, Meiyan Li, Xingtao Zhou
BACKGROUND: To investigate the visual and refractive outcomes in patients with mild to moderate myopia after laser-assisted subepithelial keratectomy (LASEK) using the 500 Hz pulse rate of the Triple-A profile. METHODS: Thirty-six eyes of 20 patients (mean age, 27.5 ± 4.6 years) were included in this prospective, consecutive study. Uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), corneal topography, and corneal aberrations were measured preoperatively and 1 day, 1 week, 1, 3 and 6 months post-operation...
June 23, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28645045/hydra-amphiphiles-using-three-heads-and-one-tail-to-influence-aggregate-formation-and-to-kill-pathogenic-bacteria
#9
Tara M Gallagher, John N Marafino, Brenden K Wimbish, Brandi Volkers, Gabriel Fitzgerald, Kristin McKenna, Jason Floyd, Nicholas T Minahan, Brenna Walsh, Kirstie Thompson, David Bruno, Monica Paneru, Sybelle Djikeng, Stephanie Masters, Suma Haji, Kyle Seifert, Kevin L Caran
Hydra amphiphiles mimic the morphology of the mythical multi-headed creatures for which they are named. Likewise, when faced with a pathogenic bacterium, some hydra derivatives are as destructive as their fabled counterparts were to their adversaries. This report focuses on eight new tricephalic (triple-headed), single-tailed amphiphiles. Each amphiphile has a mesitylene (1,3,5-trimethylbenzene) core, two benzylic trimethylammonium groups and one dimethylalkylammonium group with a linear hydrophobe ranging from short (C8H17) to ultralong (C22H45)...
June 10, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28645021/development-a-validated-highly-sensitive-lc-ms-ms-method-for-simultaneous-quantification-of-ledipasvir-sofosbuvir-and-its-major-metabolite-gs-331007-in-human-plasma-application-to-a-human-pharmacokinetic-study
#10
Ola M Abdallah, Ahmed M Abdel-Megied, Amira S Gouda
A highly sensitive and rapid LC-MS/MS method was developed, fully optimized and validated for the simultaneous determination of Ledipasvir (LED) and Sofosbuvir (SOF) in the presence of its major metabolite GS-331007 in human plasma using Daclatasvir as internal standard (IS). The extraction of analytes and IS from plasma was performed using liquid-liquid extraction with ethyl acetate. The chromatographic separation of these prepared samples was achieved on Xterra MS C8 column (4.6×50mm,5μm) using gradient elution with a mobile phase of ammonium formate buffer (pH 3...
June 20, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28644575/comparison-of-10-days-levofloxacin-bismuth-based-quadruple-therapy-and-levofloxacin-based-triple-therapy-for-helicobacter-pylori-therapy
#11
Tzung-Shiun Wu, Ping-I Hsu, Chao-Hung Kuo, Huang-Ming Hu, I-Chen Wu, Sophie S W Wang, Yen-Hsu Chen, Deng-Chyang Wu, Wei-Wen Su, Fu-Chen Kuo
BACKGROUND: This was a prospective study, the aid was to prove if levofloxacin plus Bismuth-based quadruple therapy was more effective than levofloxacin-based triple therapy after failure of first-line therapies. METHODS: We collected total of 67 patients, who was infected by H.pylori. Patients were enrolled and were randomly assigned to two groups; one was levofloxacin plus Bismuth-based quadruple therapy (RBAL group) (Rabeprazole 20 mg b.i.d., bismuth subcitrate 120 mg q...
June 23, 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28643778/a-decoherence-free-subspace-in-a-charge-quadrupole-qubit
#12
Mark Friesen, Joydip Ghosh, M A Eriksson, S N Coppersmith
Quantum computing promises significant speed-up for certain types of computational problems. However, robust implementations of semiconducting qubits must overcome the effects of charge noise that currently limit coherence during gate operations. Here we describe a scheme for protecting solid-state qubits from uniform electric field fluctuations by generalizing the concept of a decoherence-free subspace for spins, and we propose a specific physical implementation: a quadrupole charge qubit formed in a triple quantum dot...
June 23, 2017: Nature Communications
https://www.readbyqxmd.com/read/28643478/critical-role-of-tnf-inhibition-in-combination-therapy-for-elderly-mice-with-atherosclerosis
#13
Kyung-Yeon Park, Tae-Hwe Heo
We have previously shown that the combination of pravastatin and sarpogrelate is synergistically beneficial for atherosclerosis. In this study, we investigated whether the pravastatin-sarpogrelate combination was sufficient for treatment in an old mouse model of atherosclerosis or if additional intervention would be needed to address the newly included aging factor and its complex pathophysiological impact on the atherosclerogenic state. We added an anti-TNF biologic to the combination treatment cocktail because of the known pathologic roles of TNF in the aging process...
June 23, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28643430/platinum-containing-regimens-for-metastatic-breast-cancer
#14
REVIEW
Sam J Egger, Melina L Willson, Jenna Morgan, Harriet S Walker, Sue Carrick, Davina Ghersi, Nicholas Wilcken
BACKGROUND: Studies have reported high tumour response rates for platinum-containing regimens in the treatment of women with metastatic breast cancer. Most of these studies were conducted prior to the 'intrinsic subtype' era, and did not specifically focus on metastatic triple-negative breast cancers (mTNBCs). OBJECTIVES: To identify and review the evidence from randomised trials comparing platinum-containing chemotherapy regimens with regimens not containing platinum in the management of women with metastatic breast cancer...
June 23, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28643219/triple-antithrombotic-therapy-in-atrial-fibrillation-patients-undergoing-pci-a-fading-role
#15
Dimitrios Alexopoulos, Panagiotis Vlachakis, John Lekakis
Triple antithrombotic therapy (TAT), consisting of aspirin, a P2Y12 receptor antagonist and oral anticoagulant (OAC) medication has been considered as an 'unavoidable' strategy for a 1-12 months for atrial fibrillation (AF) patients post acute coronary syndrome or percutaneous coronary angioplasty with stenting. However, TAT has rather poorly been adopted in real life practice, mainly because of an accompanying increased bleeding potential and lack of definitive results of randomized clinical trials. Several registries, meta-analyses and small randomized trials have so far provided the base of guidelines recommendations...
June 22, 2017: Cardiovascular Drugs and Therapy
https://www.readbyqxmd.com/read/28643125/the-role-of-prmt1-in-egfr-methylation-and-signaling-in-mda-mb-468-triple-negative-breast-cancer-cells
#16
Katsuya Nakai, Weiya Xia, Hsin-Wei Liao, Mitsue Saito, Mien-Chie Hung, Hirohito Yamaguchi
BACKGROUND: Epidermal growth factor receptor (EGFR) is often overexpressed in triple-negative breast cancer (TNBC). However, clinical studies have shown that therapies against EGFR are not effective in patients with TNBC. Recently, it has been reported that arginine 198/200 in EGFR extracellular domain is methylated by PRMT1 and that the methylation confers resistance to EGFR monoclonal antibody cetuximab in colorectal cancer cells. To explore a potential mechanism underlying intrinsic resistance to anti-EGFR therapy in TNBC, we investigated the role of PRMT1 in EGFR methylation and signaling in MDA-MB-468 (468) TNBC cells...
June 22, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/28642239/a-novel-single-domain-antibody-against-von-willebrand-factor-a1-domain-resolves-leukocyte-recruitment-and-vascular-leakage-during-inflammation
#17
Gabriel Aymé, Frédéric Adam, Paulette Legendre, Amine Bazaa, Valérie Proulle, Cécile V Denis, Olivier D Christophe, Peter J Lenting
OBJECTIVE: von Willebrand factor (VWF) is crucial to hemostasis, but also plays a role in inflammatory processes. Unfortunately, no proper monoclonal antibodies to study VWF function in mice are currently available. We therefore aimed to generate single-domain antibodies (sdAbs) recognizing murine VWF and blocking its function in vivo. APPROACH AND RESULTS: Llama-derived sdAbs recognizing both human and murine VWF were isolated via phage display technology. One of them (designated KB-VWF-006) recognized the VWF A1 domain with picomolar affinity...
June 22, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28642093/functional-characterization-of-3-ketosteroid-9%C3%AE-hydroxylases-in-rhodococcus-ruber-strain-chol-4
#18
Govinda Guevara, Laura Fernández de Las Heras, Julián Perera, Juana María Navarro Llorens
The 3-Ketosteroid-9α-Hydroxylase, also known as KshAB [androsta-1,4-diene-3,17-dione, NADH:oxygen oxidoreductase (9α-hydroxylating); EC 1.14.13.142)], is a key enzyme in the general scheme of the bacterial steroid catabolism in combination with a 3-ketosteroid-Δ(1)-dehydrogenase activity (KstD), being both responsible of the steroid nucleus (rings A/B) breakage. KshAB initiates the opening of the steroid ring by the 9α-hydroxylation of the C9 carbon of 4-ene-3-oxosteroids (e.g. AD) or 1,4-diene-3-oxosteroids (e...
June 19, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28642087/contemporary-prevalence-in-hospital-outcomes-and-prognostic-determinants-of-triple-valve-surgery
#19
Lucas B Ohmes, Luke Kim, Dmitriy N Feldman, Christopher Lau, Monica Munjal, Antonino Di Franco, Fawad Hameedi, Ivancarmine Gambardella, Leonard N Girardi, Mario Gaudino
BACKGROUND: Triple valve surgery (TVS) remains a challenging procedure with limited existing literature. We aim to evaluate the prevalence, in-hospital outcomes, and prognostic determinants of TVS in the current era. MATERIALS AND METHODS: We reviewed the Nationwide Inpatient Sample database from 2003 to 2012 and included all patients who underwent aortic valve replacement (AVR) combined with mitral valve replacement (MVR) or repair (MVRep) and tricuspid valve replacement (TVR) or repair (TVRep)...
June 19, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28641951/necrotizing-fasciitis-attended-in-the-emergency-department-in-a-tertiary-hospital-evaluation-of-the-lrinec-scale
#20
J R Ballesteros-Betancourt, R García-Tarriño, J Ríos-Guillermo, J M Rodriguez-Roiz, P Camacho, A Zumbado-Dijeres, A Domingo-Trepat, M Llusá-Pérez, A Combalia-Aleu, S García-Ramiro, A Soriano-Viladomiu
AIM: To describe mortality and complications of patients seen in the emergency room, diagnosed with necrotizing soft tissue infection (NSTI) and the correlation of such complications with the Laboratory Risk Indicator for Necrotizing fasciitis scale (LRINEC). METHODS: Retrospective observational study including patients with a diagnosis of NSTI in the emergency room of a tertiary hospital over 7 years. The results are shown as median, interquartile range and absolute range for quantitative variables...
June 19, 2017: Revista Española de Cirugía Ortopédica y Traumatología
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