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https://www.readbyqxmd.com/read/28433753/computational-image-analysis-for-prognosis-determination-in-dme
#1
Bianca S Gerendas, Hrvoje Bogunovic, Amir Sadeghipour, Thomas Schlegl, Georg Langs, Sebastian M Waldstein, Ursula Schmidt-Erfurth
In this pilot study, we evaluated the potential of computational image analysis of optical coherence tomography (OCT) data to determine the prognosis of patients with diabetic macular edema (DME). Spectral-domain OCT scans with fully automated retinal layer segmentation and segmentation of intraretinal cystoid fluid (IRC) and subretinal fluid of 629 patients receiving anti-vascular endothelial growth factor therapy for DME in a randomized prospective clinical trial were analyzed. The results were used to define 312 potentially predictive features at three timepoints (baseline, weeks 12 and 24) for best-corrected visual acuity (BCVA) at baseline and after one year used in a random forest prediction path...
April 19, 2017: Vision Research
https://www.readbyqxmd.com/read/28421390/ofatumumab-combined-with-chlorambucil-for-previously-untreated-chronic-lymphocytic-leukemia-a-phase-i-ii-open-label-study-in-japan
#2
Kiyohiko Hatake, Michinori Ogura, Kohichi Takada, Masafumi Taniwaki, Fanghong Zhang, Taizo Fujita, Kiyoshi Ando
Elderly/comorbid patients with chronic lymphocytic leukemia (CLL) require low-toxicity treatments. Internationally, the standard treatment for such patients is chlorambucil and an anti-CD20 therapy; however, chlorambucil is not approved in Japan. The aim of the present study was to evaluate the safety, efficacy and pharmacokinetics of ofatumumab in combination with chlorambucil in Japanese patients with previously untreated CLL who were inappropriate for fludarabine-based therapy. Ten patients were enrolled and treated in this study, all of whom received at least one dose of the study drugs...
April 18, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28403925/prevention-of-infertility-induced-by-ovarian-ischemia-reperfusion-injury-by-benidipine-in-rats-biochemical-gene-expression-histopathological-and-immunohistochemical-evaluation
#3
E Unlubilgin, B Suleyman, G Balci, R Atakan Al, M Cankaya, U Arslan Nayki, H Suleyman
INTRODUCTION: Benidipine has been reported to prevent the ischemia/reperfusion (I/R) damage in heart tissue and to suppress oxidant and proinflammatory cytokine production, increased by I/R. However, There was no information about the effects of benidipine on I/R injury in the ovary and the damage of I/R-induced infertility. OBJECTIVES: The aim of the study was to investigate the effects of benidipine on bilateral ovarian I/R injury and whether or not effective in the treatment of I/R-induced infertility in rats...
March 2017: J Gynecol Obstet Hum Reprod
https://www.readbyqxmd.com/read/28402962/regeneration-of-cervical-reserve-cell-like-cells-from-human-induced-pluripotent-stem-cells-ipscs-a-new-approach-to-finding-targets-for-cervical-cancer-stem-cell-treatment
#4
Masakazu Sato, Kei Kawana, Katsuyuki Adachi, Asaha Fujimoto, Mitsuyo Yoshida, Hiroe Nakamura, Haruka Nishida, Tomoko Inoue, Ayumi Taguchi, Juri Ogishima, Satoko Eguchi, Aki Yamashita, Kensuke Tomio, Osamu Wada-Hiraike, Katsutoshi Oda, Takeshi Nagamatsu, Yutaka Osuga, Tomoyuki Fujii
Cervical reserve cells are epithelial progenitor cells that are pathologically evident as the origin of cervical cancer. Thus, investigating the characteristics of cervical reserve cells could yield insight into the features of cervical cancer stem cells (CSCs). In this study, we established a method for the regeneration of cervical reserve cell-like properties from human induced pluripotent stem cells (iPSCs) and named these cells induced reserve cell-like cells (iRCs). Approximately 70% of iRCs were positive for the reserve cell markers p63, CK5 and CK8...
April 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28390361/the-role-of-li-ions-in-the-gas-phase-dehydrohalogenation-and-dehydration-reactions-of-i-c3h7br-and-i-c3h7oh-molecules-studied-by-radiofrequency-guided-ion-beam-techniques-and-ab-initio-methods
#5
E López, J M Lucas, J de Andrés, M Albertí, J M Bofill, A Aguilar
Gas phase reactive collisions between lithium ions and i-C3H7X (X = Br, OH) molecules have been studied under single collision conditions in the center of mass (CM) 0.01-10.00 eV energy range using a radiofrequency-guided ion beam apparatus. Mass spectrometry analysis of the products did show the presence of [C3H6-Li](+), [HX-Li](+), C3H7(+), and C2H3(+) as well as of the [Li-i-C3H7Br](+) adduct while [Li-i-C3H7OH](+) was hardly detected. For all these reactive processes, the corresponding cross sections have been measured in absolute units as a function of the CM collision energy...
April 7, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28373262/impact-of-ibrutinib-dose-adherence-on-therapeutic-efficacy-in-patients-with-previously-treated-cll-sll
#6
Paul M Barr, Jennifer R Brown, Peter Hillmen, Susan O'Brien, Jacqueline C Barrientos, Nishitha M Reddy, Steven Coutre, Stephen P Mulligan, Ulrich Jaeger, Richard R Furman, Florence Cymbalista, Marco Montillo, Claire Dearden, Tadeusz Robak, Carol Moreno, John M Pagel, Jan A Burger, Samuel Suzuki, Juthamas Sukbuntherng, George Cole, Danelle F James, John C Byrd
Ibrutinib, an oral inhibitor of Bruton's tyrosine kinase (BTK), at a once-daily dose of 420 mg achieved BTK active-site occupancy in patients with CLL that was maintained at 24 hours. It is unknown if intermittent interruption of ibrutinib therapy contributes to altered clinical outcomes. We therefore evaluated the effect of ibrutinib dose adherence on patient outcomes in the phase 3 RESONATE(TM) trial. The overall mean dose intensity (DI) was 95% with median treatment duration of ~9 months. Pharmacokinetic assessment of ibrutinib exposure at 420 mg dose suggested similar exposure regardless of patient weight or age...
April 3, 2017: Blood
https://www.readbyqxmd.com/read/28332090/disparities-in-the-clinical-evolution-of-anal-neoplasia-in-an-hiv-infected-cohort
#7
Edward R Cachay, Wollelaw Agmas, Wm Christopher Mathews
BACKGROUND: A recent meta-analysis suggested that anal intraepithelial neoplasia and invasive anal cancer are more prevalent among black men having sex with men (MSM). METHODS: We conducted a retrospective cohort of HIV-infected adult patients under care between 2001 and 2012. Disparities in clinical evolution of anal intraepithelial neoplasia to high-grade squamous intraepithelial lesion (HSIL) and invasive anal cancer were evaluated in a three-state Markov model adjusted for cytology misclassification...
March 23, 2017: Journal of Racial and Ethnic Health Disparities
https://www.readbyqxmd.com/read/28329727/theoretical-study-on-the-alkylation-of-o-xylene-with-styrene-in-alcl3-ionic-liquid-catalytic-system
#8
Bobo Cao, Jiuyao Du, Ziping Cao, Haitao Sun, Xuejun Sun, Hui Fu
To explore sustainable catalysts with innovative mechanisms, the alkylation mechanism of o-xylene with styrene was studied using DFT method in AlCl3-ionic liquid catalytic system. The reaction pathway was consisted of CC coupling and a hydrogen shift, in which two transition states were found and further discussed. The reactive energy catalyzed by superelectrophilic AlCl2(+) (12.6kcal/mol) was distinctly lower than AlCl3 (43.0kcal/mol), which was determined as the rate-determining step. Mulliken charge along IRC gave a comprehensive understanding of charge distribution and electron transfer in dynamic progress...
March 6, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28320906/perspective-chemical-dynamics-simulations-of-non-statistical-reaction-dynamics
#9
REVIEW
Xinyou Ma, William L Hase
Non-statistical chemical dynamics are exemplified by disagreements with the transition state (TS), RRKM and phase space theories of chemical kinetics and dynamics. The intrinsic reaction coordinate (IRC) is often used for the former two theories, and non-statistical dynamics arising from non-IRC dynamics are often important. In this perspective, non-statistical dynamics are discussed for chemical reactions, with results primarily obtained from chemical dynamics simulations and to a lesser extent from experiment...
April 28, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28281456/insulin-resistance-in-systemic-lupus-erythematosus-patients-contributing-factors-and-relationship-with-subclinical-atherosclerosis
#10
Hiurma Sánchez-Pérez, Beatriz Tejera-Segura, Antonia de Vera-González, Alejandra González-Delgado, José Manuel Olmos, José Luis Hernández, Alfonso Corrales, Raquel López-Mejías, Miguel Angel González-Gay, Iván Ferraz-Amaro
OBJECTIVES: Insulin resistance (IR) plays a role in the increased cardiovascular risk of systemic lupus erythematosus (SLE) patients. This study aimed to determine the potential association of IR with disease activity, drug exposure and subclinical atherosclerosis in patients with SLE. METHODS: This cross-sectional study encompassed 87 non-diabetic SLE patients and 82 sex-matched controls. Insulin and C-peptide serum levels, IR indexes by homeostatic model assessment (HOMA2) (both insulin-based: HOMA2-IR, and with C-peptide: HOMA2-IR-C-peptide) and lipid profiles were assessed in patients and controls...
March 8, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28275348/cerebromatic-a-versatile-toolbox-for-spline-based-mri-template-creation
#11
Marko Wilke, Mekibib Altaye, Scott K Holland
Brain image spatial normalization and tissue segmentation rely on prior tissue probability maps. Appropriately selecting these tissue maps becomes particularly important when investigating "unusual" populations, such as young children or elderly subjects. When creating such priors, the disadvantage of applying more deformation must be weighed against the benefit of achieving a crisper image. We have previously suggested that statistically modeling demographic variables, instead of simply averaging images, is advantageous...
2017: Frontiers in Computational Neuroscience
https://www.readbyqxmd.com/read/28270035/bmi-1-promotes-self-renewal-of-radio-and-temozolomide-tmz-resistant-breast-cancer-cells
#12
Yanfang Yan, Ying Wang, Pengxin Zhao, Weiyuan Ma, Zhigang Hu, Kaili Zhang
Breast cancer is a hormone-dependent malignancy and is the most prevalent cause of cancer-related mortality among females. Radiation therapy and chemotherapy are common treatments of breast cancer. However, tumor relapse and metastasis following therapy are major clinical challenges. The importance of B-lymphoma Moloney murine leukemia virus insertion region-1 (BMI-1) was implicated in cell proliferation, stem cell maintenance, and tumor initiation. We established radio- and temozolomide (TMZ)-resistant (IRC-R) MCF-7 and MDA-MB-231 cell lines to investigate the mechanism involved in therapeutic resistance...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28266091/efficacy-and-safety-of-nivolumab-in-japanese-patients-with-advanced-or-recurrent-squamous-non-small-cell-lung-cancer
#13
Toyoaki Hida, Makoto Nishio, Naoyuki Nogami, Yuichiro Ohe, Hiroshi Nokihara, Hiroshi Sakai, Miyako Satouchi, Kazuhiko Nakagawa, Mitsuhiro Takenoyama, Hiroshi Isobe, Shiro Fujita, Hiroshi Tanaka, Koichi Minato, Toshiaki Takahashi, Makoto Maemondo, Koji Takeda, Hideo Saka, Koichi Goto, Shinji Atagi, Tomonori Hirashima, Naoki Sumiyoshi, Tomohide Tamura
Limited treatment options are available for stage IIIB/IV non-small cell lung cancer (NSCLC). Nivolumab, a programmed cell death-1 immune checkpoint inhibitor antibody, has been shown to be effective for the treatment of NSCLC. This study investigated the effectiveness and safety of nivolumab in Japanese patients with advanced or recurrent squamous NSCLC that progressed after platinum-containing chemotherapy. In this multicenter phase II study, patients were treated with nivolumab (3mg/kg, intravenously) every 2 weeks until progressive disease or unacceptable toxicity was seen...
March 7, 2017: Cancer Science
https://www.readbyqxmd.com/read/28251882/solid-phase-extraction-preconcentration-method-for-simultaneous-determination-of-cadmium-lead-and-nickel-in-poultry-supplements
#14
Jameel Ahmed Baig, Hina Daud Memon, Syed Ali Imran Bukhari, Tasneem Gul Kazi, Hassan Imran Afridi, Hafiz Muhammad Naseer, Latif Elci
A new simple, selective, and economical preconcentration method was developed for the determination of Cd, Pb, and Ni in poultry antibiotics and supplements. The proposed preconcentration procedure is based on SPE using 8-hydroxyquinoline and Amberlite IRC-50 resin as complex and adsorbent, respectively. The determination was carried out by microsample injection system (MIS) flame atomic absorption spectroscopy (FAAS). Several analytical parameters were examined, including pH, type of resin, amount of resin, type of eluent, eluent volume, flow rate, sample volume, and interference of diverse ions...
March 2, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28184097/the-abundance-of-c2h4-in-the-circumstellar-envelope-of-irc-10216
#15
J P Fonfría, K H Hinkle, J Cernicharo, M J Richter, M Agúndez, L Wallace
High spectral resolution mid-IR observations of ethylene (C2H4) towards the AGB star IRC+10216 were obtained using the Texas Echelon Cross Echelle Spectrograph (TEXES) at the NASA Infrared Telescope Facility (IRTF). Eighty ro-vibrational lines from the 10.5 µm vibrational mode ν7 with J ≲ 30 were detected in absorption. The observed lines are divided into two groups with rotational temperatures of 105 and 400 K (warm and hot lines). The warm lines peak at ≃ -14 km s(-1) with respect to the systemic velocity, suggesting that they are mostly formed outwards from ≃ 20R⋆...
February 1, 2017: Astrophysical Journal
https://www.readbyqxmd.com/read/28183846/association-between-quality-of-response-and-outcomes-in-patients-with-newly-diagnosed-mantle-cell-lymphoma-receiving-vr-cap-versus-r-chop-in-the-phase-iii-lym-3002-study
#16
Gregor Verhoef, Tadeusz Robak, Huiqiang Huang, Halyna Pylypenko, Noppadol Siritanaratkul, Juliana Pereira, Johannes Drach, Jiri Mayer, Rumiko Okamoto, Lixia Pei, Brendan Rooney, Andrew Cakana, Helgi van de Velde, Franco Cavalli
In the phase III LYM-3002 study comparing intravenous VR-CAP with R-CHOP in patients with newly-diagnosed, measurable stage II-IV mantle cell lymphoma, not considered, or ineligible for, transplant, median progression-free survival was significantly improved with VR-CAP (24.7 vs R-CHOP 14.4 months; P<0.001). This post-hoc analysis evaluated the association between the improved outcomes and quality of responses achieved with VR-CAP versus R-CHOP in LYM-3002. Patients were randomized to 6-8 21-day cycles of VR-CAP or R-CHOP...
February 9, 2017: Haematologica
https://www.readbyqxmd.com/read/28066525/the-effect-of-transfemoral-interface-design-on-gait-speed-and-risk-of-falls
#17
Jason T Kahle, Tyler D Klenow, William J Sampson, M Jason Highsmith
Falls and diminished walking capacity are impairments common in persons with transfemoral amputation (TFA). Reducing falls and optimizing walking capacity through such means as achieving a more normal gait speed and community ambulation should be considered when formulating the prosthetic prescription. Because walking capacity and balance confidence are compromised with TFA, these outcomes should be considered when evaluating interfaces for transfemoral prosthetic users. The purpose of this study was to compare the effect of TFA interface design on walking capacity and balance confidence A retrospective cohort design was utilized involving unilateral TFA patients who used ischial ramus containment (IRC) and High-Fidelity (HiFi) interfaces (independent variables)...
September 2016: Technology and Innovation
https://www.readbyqxmd.com/read/28065983/herschel-hifi-observations-of-the-circumstellar-ammonia-lines-in-irc-10216
#18
M R Schmidt, J H He, R Szczerba, V Bujarrabal, J Alcolea, J Cernicharo, L Decin, K Justtanont, D Teyssier, K M Menten, D A Neufeld, H Olofsson, P Planesas, A P Marston, A M Sobolev, A de Koter, F L Schöier
CONTEXT: A discrepancy exists between the abundance of ammonia (NH3) derived previously for the circumstellar envelope (CSE) of IRC+10216 from far-IR submillimeter rotational lines and that inferred from radio inversion or mid-infrared (MIR) absorption transitions. AIMS: To address the discrepancy described above, new high-resolution far-infrared (FIR) observations of both ortho- and para-NH3 transitions toward IRC+10216 were obtained with Herschel, with the goal of determining the ammonia abundance and constraining the distribution of NH3 in the envelope of IRC+10216...
August 2016: Astronomy and Astrophysics
https://www.readbyqxmd.com/read/28056492/insights-into-the-interaction-of-high-potency-inhibitor-irc-083864-with-phosphatase-cdc25
#19
Manal Sarkis, Maria A Miteva, Maria Chiara Dasso Lang, Maryse Jaouen, Marie-Agnès Sari, Marie-Odile Galcéra, Mélanie Ethève-Quelquejeu, Christiane Garbay, Gildas Bertho, Emmanuelle Braud
CDC25 phosphatases play a crucial role in cell cycle regulation. They have been found to be over-expressed in various human tumours and to be valuable targets for cancer treatment. Here, we report the first model of binding of the most potent CDC25 inhibitor to date, the bis-quinone IRC-083864, into CDC25B obtained by combining molecular modeling and NMR studies. Our study provides new insights into key interactions of the catalytic site inhibitor and CDC25B in the absence of any available experimental structure of CDC25 with a bound catalytic site inhibitor...
January 5, 2017: Proteins
https://www.readbyqxmd.com/read/28047625/su-f-j-129-verification-of-geometric-and-dosimetric-accuracy-of-respiratory-management-systems-using-homemade-phantom
#20
E Goksel, H Kucucuk, O Senkesen, E Tezcanli
PURPOSE: Different placements of Infrared Cameras (IRC) in CT and treatment rooms can cause gating window level (GWL) variations leading to differences between GWL used for planning and treatments. Although, Varian Clinac DHX-OBI sytem and CT are equipped with the same kind of IRC, Truebeam STx (TB) has a different type of IRC known as banana type. In this study; geometric and dosimetric accuracy of respiratory management system (RPM) for different machines were investigated with a special homemade phantom...
June 2016: Medical Physics
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