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https://www.readbyqxmd.com/read/28078561/clinical-benefit-of-nanoparticle-albumin-bound-paclitaxel-in-recurrent-metastatic-head-and-neck-squamous-cell-carcinoma-resistant-to-cremophor-based-paclitaxel-or-docetaxel
#1
Jessica Ley, Tanya M Wildes, Kristin Daly, Peter Oppelt, Douglas Adkins
The clinical benefit of nab-paclitaxel monotherapy for recurrent/metastatic head and neck squamous cell carcinoma (RM-HNSCC) that progressed on other taxanes (cremophor-based paclitaxel or docetaxel) is unknown. A retrospective analysis of patients treated at a single institution with nab-paclitaxel for taxane-resistant RM-HNSCC. The exploratory hypothesis was that nab-paclitaxel would result in clinical benefit (tumor response) in patients with taxane-resistant RM-HNSCC. Twelve patients who were treated with nab-paclitaxel monotherapy for taxane-resistant RM-HNSCC and met all eligibility criteria were identified...
February 2017: Medical Oncology
https://www.readbyqxmd.com/read/28078451/slower-but-not-faster-unilateral-fatiguing-knee-extensions-alter-contralateral-limb-performance-without-impairment-of-maximal-torque-output
#2
Olaf Prieske, Saied J Aboodarda, José A Benitez Sierra, David G Behm, Urs Granacher
PURPOSE: The purpose of the present study was to examine the effects of unilateral fatigue of the knee extensors at different movement velocities on neuromuscular performance in the fatigued and non-fatigued leg. METHODS: Unilateral fatigue of the knee extensors was induced in 11 healthy young men (23.7 ± 3.8 years) at slower (60°/s; FAT60) and faster movement velocities (240°/s; FAT240) using an isokinetic dynamometer. A resting control (CON) condition was included...
January 11, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28071864/simultaneous-determination-of-four-triterpenoid-saponins-in-aralia-elata-leaves-by-hplc-elsd-combined-with-hierarchical-clustering-analysis
#3
Yichun Sun, Baimei Li, Xiaoting Lin, Juan Xue, Zhibin Wang, Hongwei Zhang, Hai Jiang, Qiuhong Wang, Haixue Kuang
INTRODUCTION: Aralia elata leaves are known to have several biological activities, including anti-arrythmia, antitumor, anti-inflammatory, anti-fatigue, antimicrobial and antiviral effects. Our previous study found that triterpenoid saponins from the leaves of A. elata had antitumor effects. Quantification of the triterpenoids is important for the quality control of A. elata leaves. OBJECTIVE: To establish high-performance liquid chromatography coupled with evaporative light scattering detection (HPLC-ELSD) for the simultaneous determination of four major triterpenoid saponins, including Aralia-saponin IV, Aralia-saponin VI, 3-O-β-d- glucopyranosyl-(1 → 3)-β-d-glucopyranosyl-(1 → 3)-β-d-glucopyranosyl oleanolic acid 28-O-β-d-glucopyranoside (Aralia-saponin TTP)and Aralia-saponin V...
January 10, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/28065620/treatment-response-and-prophylactic-cranial-irradiation-are-prognostic-factors-in-a-real-life-limited-disease-small-cell-lung-cancer-patient-cohort-comprehensively-staged-with-cranial-magnetic-resonance-imaging
#4
Chukwuka Eze, Olarn Roengvoraphoj, Maximilian Niyazi, Guido Hildebrandt, Rainer Fietkau, Claus Belka, Farkhad Manapov
INTRODUCTION: Prophylactic cranial irradiation (PCI) has proven to decrease the incidence of brain metastases (BMs), with a modest improvement in survival. PATIENTS AND METHODS: The impact of PCI was evaluated in 184 patients treated with chemoradiotherapy. PCI was applied to patients with disease with partial and complete response only when cranial magnetic resonance imaging before and after primary treatment revealed no BMs. Correlation between PCI and overall survival (OS), BM-free survival (BMFS), and time to progression (TTP) was analyzed to describe survival within subgroups...
November 21, 2016: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28065234/quantitative-measurement-of-cerebral-blood-flow-in-enhanced-psedo-continuous-arterial-spin-labeling-perfusion-imaging-in-patients-with-intracranial-atherosclerotic-stenosis
#5
Yang Xu, Jin-Hao Lü, Lin Ma, Wei-Jun Chen, Xin Lou
<strong>Objective</strong> To acquire cerebral blood flow (CBF) in patients with severe intracranial atherosclerotic stenosis with enhanced pseudo-continuous arterial spin labeling (e-pCASL) and compare it with the findings of dynamic susceptibility contrast-enhanced perfusion-weighted imaging (DSC PWI) and pseudo-continuous arterial spin labeling (pCASL). <strong>Methods</strong> A total of 39 consecutive patients with severe intracranial atherosclerotic stenosis were enrolled in this study...
December 20, 2016: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/28061989/high-risk-smoldering-myeloma-perspective-on-watchful-monitoring
#6
REVIEW
Siyang Leng, Suzanne Lentzsch
In a 2008 paper, Dispenzieri and colleagues at the Mayo Clinic proposed a risk stratification system for patients with smoldering multiple myeloma (SMM) based on the presence of three risk factors: serum M-protein ≥3 g/dL, bone marrow plasma cell percentage ≥10%, and a free light chain (FLC) ratio (κ to λ) of either ≤0.125 or ≥8. The patient in this vignette has all three risk factors, classifying him as high-risk, with an associated median time to progression (TTP) of 1.9 years. This is significantly worse than a patient with intermediate-risk (median TTP 5...
December 2016: Seminars in Oncology
https://www.readbyqxmd.com/read/28061371/low-level-arsenic-exposure-via-drinking-water-consumption-and-female-fecundity-a-preliminary-investigation
#7
Michele L Susko, Michael S Bloom, Iulia A Neamtiu, Allison A Appleton, Simona Surdu, Cristian Pop, Edward F Fitzgerald, Doru Anastasiu, Eugen S Gurzau
High level arsenic exposure is associated with reproductive toxicity in experimental and observational studies; however, few data exist to assess risks at low levels. Even less data are available to evaluate the impact of low level arsenic exposure on human fecundity. Our aim in this pilot study was a preliminary evaluation of associations between low level drinking water arsenic contamination and female fecundity. This retrospective study was conducted among women previously recruited to a hospital-based case-control study of spontaneous pregnancy loss in Timiṣ County, Romania...
January 3, 2017: Environmental Research
https://www.readbyqxmd.com/read/28047932/tu-h-campus-iep3-02-neurovascular-4d-parametric-imaging-using-co-registration-of-biplane-dsa-sequences-with-3d-vascular-geometry-obtained-from-cone-beam-ct
#8
A Balasubramoniam, D Bednarek, S Rudin, C Ionita
PURPOSE: To create 4D parametric images using biplane Digital Subtraction Angiography (DSA) sequences co-registered with the 3D vascular geometry obtained from Cone Beam-CT (CBCT). METHODS: We investigated a method to derive multiple 4D Parametric Imaging (PI) maps using only one CBCT acquisition. During this procedure a 3D-DSA geometry is stored and used subsequently for all 4D images. Each time a biplane DSA is acquired, we calculate 2D parametric maps of Bolus Arrival Time (BAT), Mean Transit Time (MTT) and Time to Peak (TTP)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046050/postsystolic-shortening-is-associated-with-altered-right-ventricular-function-in-children-after-tetralogy-of-fallot-surgical-repair
#9
Radosław Pietrzak, Bożena Werner
: The aim of the study was to determine whether segmental interactions, as expressed by postsystolic shortening (PSS), affects RV mechanics and are connected with impaired systolic and diastolic function in rTOF children. PATIENTS AND METHODS: 55 rTOF adolescent (study group), and 34 healthy volunteers (control group) were examined using classical Doppler flow (Doppler), Tissue Doppler Imaging (TDI) and Speckle Tracking Echocardiography (STE). PSS was found to occur when time to peak (TTP) was longer than pulmonary valve closure time (PVCT)...
2017: PloS One
https://www.readbyqxmd.com/read/28045335/phase-ii-trial-of-capecitabine-plus-erlotinib-versus-capecitabine-alone-in-patients-with-advanced-colorectal-cancer
#10
Mark D Vincent, Daniel Breadner, Denis Soulieres, Ian G Kerr, Michael Sanatani, Walter Kocha, Peter Klimo, Mary J MacKenzie, Anne O'Connell, Frances Whiston, Anne S Malpage, Larry Stitt, Stephen A Welch
: Aim & methods: Capecitabine monotherapy as palliation for advanced colorectal cancer (CRC) is generally well tolerated. Adding erlotinib, an EGFR-tyrosine kinase inhibitor, might improve efficacy versus capecitabine alone. 82 patients received capecitabine alone (Arm 1) or capecitabine with erlotinib (Arm 2). RESULTS: Median time-to-progression (TTP) in Arm 1 was 7.9 months versus 9.2 in Arm 2. In KRAS-wild type (WT) patients TTP was 8.4 and 11.7 months in Arms 1 and 2, respectively...
January 3, 2017: Future Oncology
https://www.readbyqxmd.com/read/28043088/fulvestrant-for-hormone-sensitive-metastatic-breast-cancer
#11
REVIEW
Clara I Lee, Annabel Goodwin, Nicholas Wilcken
BACKGROUND: Fulvestrant is a selective oestrogen receptor down-regulator (SERD), which by blocking proliferation of breast cancer cells, is an effective endocrine treatment for women with hormone-sensitive advanced breast cancer. The goal of such systemic therapy in this setting is to reduce symptoms, improve quality of life, and increase survival time. OBJECTIVES: To assess the efficacy and safety of fulvestrant for hormone-sensitive locally advanced or metastatic breast cancer in postmenopausal women, as compared to other standard endocrine agents...
January 3, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28042971/left-ventricular-rotational-mechanics-in-early-infancy-normal-reference-ranges-and-reproducibility-of-peak-values-and-time-to-peak-values
#12
Shiraz A Maskatia, Wesley Lee, Carolyn A Altman, Nancy A Ayres, Douglas K Feagin, Ricardo H Pignatelli
INTRODUCTION: Left ventricular cardiac twist and torsion values have been described in premature and term neonates, but not in early infancy. Early and late peak untwist rates and time to peak (TTP) values have not been described in infants. METHODS: 53 term infants were enrolled prospectively. The following parameters were obtained by two blinded observers at 1-2months postnatal age: peak twist and torsion (twist indexed to LV length), peak twist rate and torsion rate, TTP twist, early peak untwist rate, TTP early untwist rate, late peak untwist rate, TTP late untwist rate...
December 30, 2016: Early Human Development
https://www.readbyqxmd.com/read/28039716/hyperthermic-intraperitoneal-chemotherapy-plus-high-frequency-diathermic-therapy-followed-by-intravenous-chemotherapy-versus-intravenous-chemotherapy-alone-for-postoperative-adjuvant-treatment-of-gastrointestinal-cancer-a-comparative-research-study
#13
Li-Zhen Gao, E-Mei Gao, Yun-Fei Bai, Hai-Long Su, Fan Zhang, Mei-Qing Ge, Dong-Lian Liu, Yan-Kun Huang
PURPOSE: To evaluate the therapeutic efficacy and toxicity of hyperthermic intraperitoneal chemotherapy (HIPEC) plus high-frequency diathermic therapy (HFDT) followed by intravenous chemotherapy vs intravenous chemotherapy alone for adjuvant treatment of postoperative gastrointestinal neoplasms. METHODS: Fifty-two gastrointestinal carcinoma patients who were radically operated were enrolled and divided into the treatment group and the control group. In the treatment group, 25 patients were treated with combination of HIPEC+HFDT and subsequent intravenous chemotherapy, while in the control group 27 patients received intravenous chemotherapy alone...
November 2016: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28033504/reduced-adamts-13-level-negatively-correlates-with-inflammation-factors-in-plasma-of-acute-myeloid-leukemia-patients
#14
Chen Liu, Lei Zhao, Jingzhong Zhao, Qinzhu Xu, Ying Song, Hui Wang
ADAMTS-13 is crucial for maintaining the normal size of vWF. Besides thrombotic thrombocytopenic purpura (TTP), decreased ADAMTS-13 had also been reported in patients with malignancy. However, the knowledge of expression and potential role of ADAMTS-13 in hematological malignancies is still limited. We measured and compared ADAMTS-13 levels in the plasma of 82 acute myeloid leukemia (AML) patients and 34 healthy controls and found that AML patients possessed lower ADAMTS-13 than controls. AML patients with infections possessed lower level of ADAMTS-13 than patients without infections and ADAMTS-13 levels were negatively correlated with C-reactive protein(CRP), IL-6, TNFα and IL-1β...
December 20, 2016: Leukemia Research
https://www.readbyqxmd.com/read/28029273/mri-based-mismatch-detection-in-acute-ischemic-stroke-optimal-pwi-maps-and-thresholds-validated-with-pet
#15
Olivier Zaro-Weber, Walter Moeller-Hartmann, Dora Siegmund, Alexandra Kandziora, Alexander Schuster, Wolf-Dieter Heiss, Jan Sobesky
Perfusion-weighted (PW) magnetic resonance imaging (MRI) is used to detect penumbral tissue in acute stroke, but the selection of optimal PW-maps and thresholds for tissue at risk detection remains a matter of debate. We validated the performance of PW-maps with 15O-water-positron emission tomography (PET) in a large comparative PET-MR cohort of acute stroke patients. In acute and subacute stroke patients with back-to-back MRI and PET imaging, PW-maps were validated with 15O-water-PET. We pooled two different cerebral blood flow (CBF) PET-maps to define the critical flow (CF) threshold, (i) quantitative (q)CBF-PET with the CF threshold <20 ml/100 g/min and (ii) normalized non-quantitative (nq)CBF-PET with a CF threshold of <70% (corresponding to <20 ml/100 g/min according to a previously published normogram)...
January 1, 2016: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28027772/metabolic-response-assessment-with-18f-fdg-pet-ct-is-superior-to-modified-recist-for-the-evaluation-of-response-to-platinum-based-doublet-chemotherapy-in-malignant-pleural-mesothelioma
#16
Shingo Kanemura, Kozo Kuribayashi, Norihiko Funaguchi, Eisuke Shibata, Koji Mikami, Hiroshi Doi, Kazuhiro Kitajima, Seiki Hasegawa, Takashi Nakano
PURPOSE: Efficient monitoring of tumor responsiveness to chemotherapy is essential to mitigate high mortality risks and cytotoxic effects of chemotherapeutics. However, there is no consensus on the most suitable diagnostic technique/parameters for assessing response to chemotherapy in malignant pleural mesothelioma (MPM). We compared the tumor responsiveness of MPM patients as assessed using modified RECIST (mRECIST) criteria and integrated 18F-FDG-PET/CT. METHODS: Histologically confirmed MPM patients (N=82) who were treated with three cycles of cisplatin and pemetrexed, or carboplatin and pemetrexed, were included...
January 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28018599/immune-related-response-assessment-during-pd-1-inhibitor-therapy-in-advanced-non-small-cell-lung-cancer-patients
#17
Mizuki Nishino, Nikhil H Ramaiya, Emily S Chambers, Anika E Adeni, Hiroto Hatabu, Pasi A Jänne, F Stephen Hodi, Mark M Awad
BACKGROUND: Tumor response characteristics using immune-related RECIST1.1 (irRECIST1.1) in advanced non-small-cell lung cancer (NSCLC) patients treated with nivolumab monotherapy in the clinical setting have not been previously described with a direct comparison with the assessments according to the conventional RECIST1.1. METHODS: Fifty-six advanced NSCLC patients treated with nivolumab monotherapy after its Food and Drug Administration (FDA) approval were retrospectively studied...
2016: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28011677/n-acetylcysteine-in-preclinical-mouse-and-baboon-models-of-thrombotic-thrombocytopenic-purpura
#18
Claudia Tersteeg, Jan Roodt, Walter J Van Rensburg, Charlotte Dekimpe, Nele Vandeputte, Inge Pareyn, Aline Vandenbulcke, Barbara Plaimauer, Seb Lamprecht, Hans Deckmyn, José A Lopez, Simon F De Meyer, Karen Vanhoorelbeke
Thrombotic thrombocytopenic purpura (TTP) is a microangiopathic disorder diagnosed by thrombocytopenia and hemolytic anemia, associated with a deficiency in von Willebrand factor (VWF) cleaving protease ADAMTS13. Current treatment is based on plasma infusion for congenital TTP, or plasma exchange, often in combination with immunosuppressive agents, for acquired TTP. These treatment methods are however not always effective and therefore new treatment methods are highly necessary. N-acetylcysteine (NAC), an FDA-approved anti-mucolytic agent, could be a possible new treatment strategy for TTP as it was demonstrated to reduce disulfide bonds in VWF, thereby decreasing VWF multimer size and hence its prothrombotic potential...
December 23, 2016: Blood
https://www.readbyqxmd.com/read/28009914/whole-cell-selex-of-aptamers-with-a-tyrosine-like-side-chain-against-live-bacteria
#19
Marleen Renders, Emily Miller, Curtis H Lam, David M Perrin
In an effort to expand the binding and recognition capabilities of aptamers, a nucleoside triphosphate modified with a phenol that mimics the side chain of tyrosine was used in the selection of DNA aptamers against live bacteria. Of multiple modified aptamers that were isolated against Escherichia coli DH5α cells, one aptamer displays high selectivity and affinity for the target cells and is greatly enriched for phenol-modified dU nucleotides (dU(y), 47.5%). When the same sequences are synthesized with TTP, no binding is observed...
December 22, 2016: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28004482/1-1-3-3-tetratriflylpropene-ttp-a-strong-allylic-c-h-acid-for-br%C3%A3-nsted-and-lewis-acid-catalysis
#20
Denis Höfler, Manuel van Gemmeren, Petra Wedemann, Karl Kaupmees, Ivo Leito, Markus Leutzsch, Julia B Lingnau, Benjamin List
Tetratrifylpropene (TTP) has been developed as a highly acidic, allylic C-H acid for Brønsted and Lewis acid catalysis. It can readily be obtained in two steps and consistently shows exceptional catalytic activities for Mukaiyama aldol, Hosomi-Sakurai, and Friedel-Crafts acylation reactions. X-ray analyses of TTP and its salts confirm its designed, allylic structure, in which the negative charge is delocalized over four triflyl groups. NMR experiments, acidity measurements, and theoretical investigations provide further insights to rationalize the remarkable reactivity of TTP...
December 22, 2016: Angewandte Chemie
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