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https://www.readbyqxmd.com/read/29156649/short-term-choriocapillaris-changes-in-patients-with-central-serous-chorioretinopathy-after-half-dose-photodynamic-therapy
#1
Marco Nassisi, Carlo Lavia, Camilla Alovisi, Luca Musso, Chiara M Eandi
BACKGROUND: Although photodynamic therapy (PDT) has become the standard treatment for central serous chorioretinopathy (CSC), its mechanism of action remains unclear. It is assumed that PDT induces short-term choriocapillaris (CC) occlusion and long-term choroidal vascular remodeling. In this paper, we describe the short-term CC changes induced by Half-Dose PDT (HD-PDT) in chronic CSC using optical coherence tomography-angiography (OCTA). METHODS: This is a prospective interventional case series...
November 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29156493/virtual-reality-for-stroke-rehabilitation
#2
REVIEW
Kate E Laver, Belinda Lange, Stacey George, Judith E Deutsch, Gustavo Saposnik, Maria Crotty
BACKGROUND: Virtual reality and interactive video gaming have emerged as recent treatment approaches in stroke rehabilitation with commercial gaming consoles in particular, being rapidly adopted in clinical settings. This is an update of a Cochrane Review published first in 2011 and then again in 2015. OBJECTIVES: Primary objective: to determine the efficacy of virtual reality compared with an alternative intervention or no intervention on upper limb function and activity...
November 20, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29156491/long-term-calcineurin-inhibitor-therapy-and-brain-function-in-patients-after-liver-transplantation
#3
Henning Pflugrad, Anna-Kristina Schrader, Anita Blanka Tryc, Xiaoqi Ding, Heinrich Lanfermann, Elmar Jäckel, Harald Schrem, Jan Beneke, Hannelore Barg-Hock, Jürgen Klempnauer, Karin Weissenborn
BACKGROUND AND AIMS: Calcineurin inhibitors (CNI) frequently induce neurological complications early after orthotopic liver transplantation (OLT). We hypothesize that long-term CNI therapy after OLT causes dose-dependent cognitive dysfunction and alteration of brain structure. METHODS: Eighty-five OLT patients (20 with CNI free, 35 with CNI low dose and 30 with standard dose CNI immunosuppression) underwent psychometric testing and cerebral magnetic resonance tomography about 10 years after OLT to assess brain function and structural brain alterations...
November 20, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/29156365/antidepressant-polypharmacy-and-the-potential-of-pharmacokinetic-interactions-doxepin-but-not-mirtazapine-causes-clinically-relevant-changes-in-venlafaxine-metabolism
#4
Michael Paulzen, Ekkehard Haen, Christoph Hiemke, Bianca Fay, Sandra Unholzer, Gerhard Gründer, Georgios Schoretsanitis
BACKGROUND: To uncover pharmacokinetic interactions between venlafaxine and doxepin or mirtazapine in a naturalistic sample. METHODS: A therapeutic drug monitoring database containing plasma concentrations of venlafaxine (VEN) and its active metabolite O-desmethylvenlafaxine (ODVEN) was analyzed. We included 1067 of 1594 patients in the analysis. Three study groups were considered; a group of patients under venlafaxine without confounding medications, V0 (n = 905), a group of patients co-medicated with doxepin, VDOX (n = 25) and a second group, co-medicated with mirtazapine, VMIR, n = 137...
November 13, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29156346/abcg2-mediated-suppression-of-chlorin-e6-accumulation-and-photodynamic-therapy-efficiency-in-glioblastoma-cell-lines-can-be-reversed-by-ko143
#5
Sara A Abdel Gaber, Patricia Müller, Wolfgang Zimmermann, Dirk Hüttenberger, Rainer Wittig, Mahmoud H Abdel Kader, Herbert Stepp
BACKGROUND: Photodynamic therapy (PDT) of malignant brain tumors is a promising adjunct to standard treatment, especially if tumor stem cells thought to be responsible for tumor progression and therapy resistance were also susceptible to this kind of treatment. However, some photosensitizers have been reported to be substrates of ABCG2, one of the membrane transporters mediating resistance to chemotherapy. Here we investigate, whether inhibition of ABCG2 can restore sensitivity to photosensitizer chlorin e6-mediated PDT...
October 28, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29156052/primary-adrenal-insufficiency-managing-mineralocorticoid-replacement-therapy
#6
Daniela Esposito, Daniela Pasquali, Gudmundur Johannsson
Context: Mineralocorticoid (MC) replacement therapy in patients with primary adrenal insufficiency (PAI) was introduced more than 60 years ago. Still, there are limited data on how MC substitution should be optimized, since MC dosing regimens have only been systematically investigated in a few studies. We review the management of current standard MC replacement therapy in PAI and its plausible impact on outcome. Evidence Acquisition: Using PubMed, we conducted a systematic review of the literature from 1939 to 2017, with the following keywords: 'adrenal insufficiency', 'mineralocorticoid deficiency', 'aldosterone', 'cardiovascular disease', 'hypertension', and 'heart failure'...
November 15, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29155963/generating-modelling-data-from-repeat-dose-toxicity-reports
#7
Oriol López-Massaguer, Kevin Pinto-Gil, Ferran Sanz, Alexander Amberg, Lennart T Anger, Manuela Stolte, Carlo Ravagli, Philippe Marc, Manuel Pastor
Over the past decades, pharmaceutical companies have conducted a large number of high quality in vivo repeat-dose toxicity (RDT) studies for regulatory purposes. As part of the eTOX project, a high number of these studies have been compiled and integrated into a database. This valuable resource can be queried directly, but it can be further exploited to build predictive models. As the studies were originally conducted to investigate the properties of individual compounds, the experimental conditions across the studies are highly heterogeneous...
November 16, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29155879/subtypes-of-breast-cancer-show-different-spatial-distributions-of-brain-metastases
#8
Sunghyon Kyeong, Yoon Jin Cha, Sung Gwe Ahn, Sang Hyun Suh, Eun Ju Son, Sung Jun Ahn
The aim of our study was to test the hypothesis that the spatial distribution of breast cancer brain metastases (BM) differ according to their biological subtypes. MR images of 100 patients with BM from primary breast cancer were retrospectively reviewed. Patients were divided according to the biological subtype of the primary tumor, (triple-negative: 24, HER2 positive: 48, luminal: 28). All images marked with BMs were standardized to the human brain MRI atlas provided by the Montreal Neurological Institute 152 database...
2017: PloS One
https://www.readbyqxmd.com/read/29155867/spectrum-of-pathogen-and-model-specific-histopathologies-in-mouse-models-of-acute-pneumonia
#9
Kristina Dietert, Birgitt Gutbier, Sandra M Wienhold, Katrin Reppe, Xiaohui Jiang, Ling Yao, Catherine Chaput, Jan Naujoks, Markus Brack, Alexandra Kupke, Christin Peteranderl, Stephan Becker, Carolin von Lachner, Nelli Baal, Hortense Slevogt, Andreas C Hocke, Martin Witzenrath, Bastian Opitz, Susanne Herold, Holger Hackstein, Leif E Sander, Norbert Suttorp, Achim D Gruber
Pneumonia may be caused by a wide range of pathogens and is considered the most common infectious cause of death in humans. Murine acute lung infection models mirror human pathologies in many aspects and contribute to our understanding of the disease and the development of novel treatment strategies. Despite progress in other fields of tissue imaging, histopathology remains the most conclusive and practical read out tool for the descriptive and semiquantitative evaluation of mouse pneumonia and therapeutic interventions...
2017: PloS One
https://www.readbyqxmd.com/read/29155513/laparoscopic-surgery-after-neoadjuvant-therapy-in-elderly-patients-with-rectal-cancer
#10
Ruiqi Yang, Wei Qu, Zhentao He, Juan Chen, Zhongyan Wang, Yudong Huang
PURPOSE: The standard treatment for mid or low locally advanced rectal cancer is neoadjuvant therapy followed by surgical resection. Laparoscopic surgery has recently been applied for the treatment of rectal cancer. However, few studies have reported the outcomes of laparoscopic surgery for elderly patients with rectal cancer after neoadjuvant therapy. This study aimed to investigate the short- and long-term outcomes of laparoscopic surgery for elderly patients with rectal cancer after neoadjuvant therapy...
July 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29155436/enzyme-replacement-therapy-for-infantile-onset-pompe-disease
#11
REVIEW
Min Chen, Lingli Zhang, Shuyan Quan
BACKGROUND: Infantile-onset Pompe disease is a rare and progressive autosomal-recessive disorder caused by a deficiency of the lysosomal enzyme acid alpha-glucosidase (GAA). Current treatment involves enzyme replacement therapy (with recombinant human alglucosidase alfa) and symptomatic therapies (e.g. to control secretions). Children who are cross-reactive immunological material (CRIM)-negative require immunomodulation prior to commencing enzyme replacement therapy.Enzyme replacement therapy was developed as the most promising therapeutic approach for Pompe disease; however, the evidence is lacking, especially regarding the optimal dose and dose frequency...
November 20, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29154919/patient-reported-outcomes-and-opioid-use-by-outpatient-cancer-patients
#12
N Moryl, V Dave, P Glare, A Bokhari, V T Malhotra, A Gulati, J Hung, V Puttanniah, Y Griffo, R Tickoo, A Wiesenthal, S D Horn, C E Inturrisi
The Memorial Sloan-Kettering Pain Registry contains patient characteristics, treatments, and outcomes for a prospective cohort of 1534 chronic pain cancer patients who were seen at outpatient pain service clinics. Average pain intensity (Brief Pain Inventory) was reported as mild by 24.6% of patients, moderate by 41.5%, and severe by 33.9%. The patient's report of average percent pain relief and health state (EQ-5D) was inversely related to average pain intensity category, while measures of pain interference, number of worst pain locations, and physical and psychological distress were directly related to pain intensity category...
November 14, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/29154786/sex-differences-in-high-fat-diet-induced-impairments-to-striatal-akt-signaling-and-enhanced-sensitivity-to-the-behavioral-effects-of-dopamine-d2-d3-receptor-agonist-quinpirole
#13
Jeremiah Ramos, Caroline Hernandez-Casner, Bryan Cruz, Katherine M Serafine
Eating a high fat laboratory chow enhances sensitivity of rats to the behavioral effects of drugs that act on dopamine systems (e.g., cocaine). Further, in male rats, eating high fat chow impairs expression of insulin signaling phosphorylated protein kinase B (pAkt), which is vital for maintaining dopamine homeostasis. Eating high fat chow enhances sensitivity of female rats to drugs that act indirectly on dopamine receptors (e.g., cocaine); however, less is known about sensitivity of females to drugs that act directly on dopamine receptors (e...
November 14, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29154259/evaluation-of-coefficients-to-derive-organ-and-effective-doses-from-cone-beam-ct-cbct-scans-a-monte-carlo-study
#14
Abdullah Abuhaimed, Colin J Martin
Regular imaging is used throughout image guided radiation therapy (IGRT) to improve treatment delivery. In order for treatment procedures to be optimized, the doses delivered by imaging exposures should be taken into account. CT dosimetry methods based on the CT dose index (CTDI), measured with a 100 mm long pencil ionization chamber (CTDI<sub>100</sub>) in standard phantoms, are not designed for the cone beam CT (CBCT) imaging systems used in radiotherapy, therefore a modified version has been proposed for CBCT by the International Electrotechnical Commission (CTDI<sub>IEC</sub>)...
November 20, 2017: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/29154109/development-and-validation-of-a-sensitive-and-rapid-uhplc-ms-ms-method-for-the-simultaneous-quantification-of-the-common-active-and-inactive-metabolites-of-vicagrel-and-clopidogrel-in-human-plasma
#15
Cai Liu, Youming Lu, Hongbin Sun, Jin Yang, Yongqiang Liu, Xiaojuan Lai, Yanchun Gong, Xuefang Liu, Yongguo Li, Yifan Zhang, Xiaoyan Chen, Dafang Zhong
Vicagrel, an analog of clopidogrel, is a novel thienopyridine P2Y12 antagonist in clinical development in China for the treatment of acute coronary syndromes. Vicagrel and clopidogrel are prodrugs requiring metabolic activation to produce a pharmacologically active thiol metabolite (H4) in vivo. The formation of H4 from vicagrel in humans is promising more efficient and consistent than that from clopidogrel. After oral dosing of vicagrel or clopidogrel to humans, the active thiol metabolite H4 and two inactive metabolites closely related to H4 formation (the thiol metabolite H3 and the S-methylated metabolite SM3) were observed in plasma; SM3 was the most abundant drug-related component of vicagrel in circulation...
November 6, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29154063/the-impact-of-silymarin-on-antioxidant-and-oxidative-status-in-patients-with-%C3%AE-thalassemia-major-a-crossover-randomized-controlled-trial
#16
Hadi Darvishi-Khezri, Ebrahim Salehifar, Mehrnoush Kosaryan, Hossein Karami, Abbas Alipour, Fatemeh Shaki, Aily Aliasgharian
BACKGROUND & AIMS: Blood transfusion therapy is lifesaving for individuals with β-thalassemia major (β-TM). Iron burden following blood transfusion is the main cause of oxidative stress (OS) and organ dysfunction in these patients. The aim of this study was to evaluate the effects of silymarin on serum antioxidant and oxidative status in patients with β-TM. METHODS: A crossover, randomized controlled trial was performed on 82 thalassemia patients. In two periods of 12 weeks, patients received 420mg silymarin (divided into three equal 140-mg daily doses) and placebo...
December 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/29153866/a-phase-i-trial-of-the-pi3k-inhibitor-buparlisib-combined-with-capecitabine-in-patients-with-metastatic-breast-cancer
#17
Autumn J McRee, Paul K Marcom, Dominic T Moore, William C Zamboni, Zachary A Kornblum, Zhiyuan Hu, Rachel Phipps, Carey K Anders, Katherine Reeder-Hayes, Lisa A Carey, Karen E Weck, Charles M Perou, E Claire Dees
BACKGROUND: Buparlisib is an oral pan-class I phosphotidyinositol-3-kinase (PI3K) inhibitor. The present phase I study evaluated the safety, pharmacokinetics, and efficacy of buparlisib with capecitabine in patients with metastatic breast cancer. PATIENTS AND METHODS: Patients received buparlisib once daily (range, 50 to 100 mg) for 3 weeks with capecitabine twice daily (range, 1000 to 1250 mg/m(2)) for 2 weeks with a 1-week break. Dose escalation used a traditional "3 + 3" design with standard definitions of dose-limiting toxicity (DLT) and maximum tolerated dose...
October 28, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29153523/uncertainty-assessment-of-the-breath-methane-concentration-method-to-determine-methane-production-of-dairy-cows
#18
Liansun Wu, Peter W G Groot Koerkamp, Nico Ogink
The breath methane concentration method uses the methane concentrations in the cow's breath during feed bin visits as a proxy for the methane production rate. The objective of this study was to assess the uncertainty of a breath methane concentration method in a feeder and its capability to measure and rank cows' methane production. A range of controlled methane fluxes from a so-called artificial reference cow were dosed in a feed bin, and its exhaled air was sampled by a tube inside the feeder and analyzed...
November 15, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29153377/iatrogenic-iron-overload-and-its-potential-consequences-in-patients-on-hemodialysis
#19
Guy Rostoker, Nosratola D Vaziri
Iron overload was considered rare in hemodialysis patients until recently, but its clinical frequency is now increasingly recognized. The liver is the main site of iron storage and the liver iron concentration (LIC) is closely correlated with total iron stores in patients with secondary hemosiderosis and genetic hemochromatosis. Magnetic resonance imaging (MRI) is now the gold standard method for estimating and monitoring LIC. Studies of LIC in hemodialysis patients by magnetic susceptometry thirteen years ago and recently by quantitative MRI have demonstrated a relation between the risk of iron overload and the use of intravenous (IV) iron products prescribed at doses determined by the iron biomarker cutoffs contained in current anemia management guidelines...
November 16, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/29153368/diagnostic-value-of-cone-beam-computed-tomography-cbct-in-occult-scaphoid-and-wrist-fractures
#20
Christophe Borel, Ahmed Larbi, Stephanie Delclaux, Franck Lapegue, Helene Chiavassa-Gandois, Nicolas Sans, Marie Faruch-Bilfeld
OBJECTIVE: Evaluate the diagnostic value of cone beam computed tomography (CBCT) for scaphoid and wrist fractures that are missed on standard radiographs. MATERIALS AND METHODS: Between September 2014 and October 2015, we prospectively enrolled 49 patients with a clinically suspected scaphoid fracture following an acute injury but had normal radiographs. Each patients underwent radiographs, CBCT and (magnetic resonance imaging) MRI within 7days of the initial injury event...
December 2017: European Journal of Radiology
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