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https://www.readbyqxmd.com/read/28231584/characteristics-of-sarcoidosis-in-patients-with-previous-malignancy-causality-or-coincidence
#1
Nissim Arish, Rottem Kuint, Eli Sapir, Liran Levy, Avraham Abutbul, Zvi Fridlender, Uri Laxer, Neville Berkman
BACKGROUND: The association between sarcoidosis and malignancy is poorly defined. Sarcoidosis can precede, be diagnosed concurrently with, or follow malignancy. OBJECTIVES: We describe the clinical and radiological features of patients with sarcoidosis following malignancy to determine whether this association is causal or coincidental. METHODS: We performed a search for all patients with confirmed sarcoidosis following malignancy in our institution during 2001-2015...
February 24, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28231582/radiomics-in-head-and-neck-cancer-extracting-valuable-information-from-data-beyond-recognition
#2
Kathrin Scheckenbach, Lena Colter, Martin Wagenmann
In oncology, biomarkers that describe the characteristics of a malignancy on different levels (clinical, histological, molecular) and the patient's outcome and treatment response are increasingly integrated into the clinical routine. Extensive screening tools, "omics," offer incredible opportunities and vast amounts of data. During the last years, the field of "omics" gained a new promising partner, the "radiomics." Based on radiological imaging, multiple features can be extracted and linked to clinical, genomic, and histopathological data from other sources...
February 24, 2017: ORL; Journal for Oto-rhino-laryngology and its related Specialties
https://www.readbyqxmd.com/read/28231581/prognostic-markers-and-histologic-subtypes-in-patients-with-meningeal-carcinomatosis-in-breast-cancer
#3
Hussein Alnajar, Lauren Rosen, Sara Javidiparsijani, Yahya Al-Ghamdi, Paolo Gattuso
OBJECTIVE: Meningeal carcinomatosis (MC) is a rare complication in breast cancer patients. It is defined as a diffuse or multifocal leptomeningeal metastasis. STUDY DESIGN: From our institution database, we retrospectively studied 19 patients diagnosed with MC in the cerebrospinal fluid (CSF) in 1997-2015, in order to evaluate tumor prognostic markers, histologic subtypes, and clinical outcome. RESULTS: All patients were female, with a mean age of 53 years (range 36-75 years)...
February 24, 2017: Acta Cytologica
https://www.readbyqxmd.com/read/28231543/date-seed-extract-ameliorates-%C3%AE-amyloid-induced-impairments-in-hippocampus-of-male-rats
#4
Farzaneh Dehghanian, Taj Pari Kalantaripour, Khadijeh Esmaeilpour, Leila Elyasi, Hakime Oloumi, Fatmeh Mehdi Pour, Majid Asadi-Shekaari
Alzheimer's disease (AD) is the most prevalent neurodegenerative disorder among the elderly. Because the existing treatments for Alzheimer's disease only offer limited symptomatic alleviation, more efficient therapeutic agents are urgently needed. Date seed is a hepatoprotective and neuroprotective agent. Date seed extract (DSE) has bioactive components like phenolics, flavonoids, and vitamins. In view of the ameliorative effects of DSE against an oxidative injury, the current study was designed to reveal whether DSE has a neuroprotective resource in the rat model of Alzheimer's disease...
February 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28231471/pathogenic-potential-and-virulence-genotypes-of-intestinal-and-faecal-isolates-of-porcine-post-weaning-enteropathogenic-escherichia-coli
#5
Anna Malik, Béla Nagy, Renáta Kugler, Ama Szmolka
Enteropathogenic Escherichia coli (EPEC) are frequent causes of diarrhoea in infants and in young mammals by inducing attaching effacing (AE) lesions of the intestinal epithelium. EPEC bacteria have also been implicated in cases of porcine post-weaning diarrhoea but their pathogenicity for conventional weaned pigs remains less elucidated. This present study investigates differences in pathogenic potential and virulence genotypes of intestinal and faecal isolates of EPEC from newly-weaned pigs. For this we inoculated ligated ileal loops of four weeks old weaned pigs to assess EPEC adherence to enterocytes by histology and immunohistology...
February 9, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28231420/serum-ferritin-concentration-predicts-hepatic-fibrosis-better-than-hepatic-iron-concentration-in-human-hfe-hemochromatosis
#6
Marnie J Wood, Darrell H G Crawford, Leesa F Wockner, Lawrie W Powell, Grant A Ramm
BACKGROUND & AIMS: Ferritin is purported to have proinflammatory and profibrogenic effects on hepatic stellate cells. Thus, rather than acting as a passive indicator of hepatic iron concentration (HIC) in hemochromatosis, ferritin may directly influence fibrosis. This study evaluated whether serum ferritin is a better predictor of hepatic fibrosis compared to variables previously associated with increased fibrosis risk in hemochromatosis. METHODS: We identified 291 C282Y HFE-homozygous patients who had undergone liver biopsy for histological fibrosis staging and measurement of HIC...
February 23, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28231408/climbing-bloom-s-taxonomy-pyramid-lessons-from-a-graduate-histology-course
#7
Nikki B Zaidi, Charles Hwang, Sara Scott, Stefanie Stallard, Joel Purkiss, Michael Hortsch
Bloom's taxonomy was adopted to create a subject-specific scoring tool for histology multiple-choice questions (MCQs). This Bloom's Taxonomy Histology Tool (BTHT) was used to analyze teacher- and student-generated quiz and examination questions from a graduate level histology course. Multiple-choice questions using histological images were generally assigned a higher BTHT level than simple text questions. The type of microscopy technique (light or electron microscopy) used for these image-based questions did not result in any significant differences in their Bloom's taxonomy scores...
February 23, 2017: Anatomical Sciences Education
https://www.readbyqxmd.com/read/28231390/intraoperative-assessment-of-laryngeal-pathologies-with-optical-coherence-tomography-integrated-into-a-surgical-microscope
#8
Anna S Englhard, Tom Betz, Veronika Volgger, Eva Lankenau, Georg J Ledderose, Herbert Stepp, Christian Homann, Christian S Betz
OBJECTIVE: Endoscopic examination followed by tissue biopsy is the gold standard in the evaluation of lesions of the upper aerodigestive tract. However, it can be difficult to distinguish between healthy mucosa, dysplasia, and invasive carcinoma. Optical coherence tomography (OCT) is a non-invasive technique which acquires high-resolution, cross-sectional images of tissue in vivo. Integrated into a surgical microscope, it allows the intraoperative evaluation of lesions simultaneously with microscopic visualization...
February 23, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28231293/photoacoustic-imaging-features-of-intraocular-tumors-retinoblastoma-and-uveal-melanoma
#9
Guan Xu, Yafang Xue, Zeynep Gürsel Özkurt, Naziha Slimani, Zizhong Hu, Xueding Wang, Kewen Xia, Teng Ma, Qifa Zhou, Hakan Demirci
The purpose of this study is to examine the capability of photoacoustic (PA) imaging (PAI) in assessing the unique molecular and architectural features in ocular tumors. A real-time PA and ultrasonography (US) parallel imaging system based on a research US platform was developed to examine retinoblastoma in mice in vivo and human retinoblastoma and uveal melanoma ex vivo. PA signals were generated by optical illumination at 720, 750, 800, 850, 900 and 950 nm delivered through a fiber optical bundle. The optical absorption spectra of the tumors were derived from the PA images...
2017: PloS One
https://www.readbyqxmd.com/read/28231273/periovulatory-follicular-fluid-levels-of-estradiol-trigger-inflammatory-and-dna-damage-responses-in-oviduct-epithelial-cells
#10
Sergio E Palma-Vera, Jennifer Schoen, Shuai Chen
OBJECTIVE: Ovarian steroid hormones (mainly E2 and P4) regulate oviduct physiology. Serum-E2 acts on the oviduct epithelium from the basolateral cell compartment. Upon ovulation, the apical compartment of the oviduct epithelium is temporarily exposed to follicular fluid, which contains much higher levels of E2 than serum. The aim of this study was to evaluate the effects of human periovulatory follicular fluid levels of E2 on oviduct epithelial cells using two porcine in vitro models...
2017: PloS One
https://www.readbyqxmd.com/read/28231233/association-of-topoisomerase-ii-top2a-and-dual-specificity-phosphatase-6-dusp6-single-nucleotide-polymorphisms-with-radiation-treatment-response-and-prognosis-of-lung-cancer-in-han-chinese
#11
Tian-Lu Wang, Yang-Wu Ren, He-Tong Wang, Hong Yu, Yu-Xia Zhao
BACKGROUND Mutations of DNA topoisomerase II (TOP2A) are associated with chemotherapy resistance, whereas dual-specificity phosphatase 6 (DUSP6) negatively regulates members of the mitogen-activated protein (MAP) kinase superfamily to control cell proliferation. This study assessed TOP2A and DUSP6 single nucleotide polymorphisms (SNPs) in non-small cell lung cancer (NSCLC) patients for association with chemoradiotherapy responses and prognosis. MATERIAL AND METHODS A total of 140 Chinese patients with histologically confirmed NSCLC were enrolled and subjected to genotyping of TOP2A rs471692 and DUSP6 rs2279574 using Taqman PCR...
February 23, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28231071/normalization-time-of-celiac-serology-in-children-on-a-gluten-free-diet
#12
Dominica Gidrewicz, Cynthia L Trevenen, Martha Lyon, J Decker Butzner
OBJECTIVES: Response to a gluten-free diet (GFD) in children with celiac disease is determined by symptom resolution and normalization of serology. We evaluated the rate of normalization of the transglutaminase (TTG) and antiendomysial (EMA) for children on a GFD after diagnosis. METHODS: Celiac serologies were obtained over 3.5 years after starting a GFD in 228 newly diagnosed children with biopsy-proven celiac disease. Patients were classified into categories based on serology (group A, TTG ≥10 × upper limit of normal [ULN] and EMA ≥ 1:80; group B, TTG ≥10 × ULN and EMA ≤ 1:40; and group C, TTG <10 × ULN) and by severity of histologic injury at diagnosis...
March 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28231052/review-the-role-of-peroxisome-proliferator-activated-receptor-in-the-treatment-of-non-alcoholic-fatty-liver-disease
#13
Xin Sun, Yan Zhang, Meilin Xie
Non-alcoholic fatty liver disease (NAFLD) has been defined as a spectrum of histological abnormalities and is characterized by significant and excessive accumulation of triglycerides in the hepatocytes in patients without alcohol consumption or other diseases. Current studies are targeting new molecular mechanisms that underlie NAFLD and associated metabolic disorders. Many therapeutic targets have been found and used in clinical studies. Peroxisome proliferator-activated receptors (PPARs) are among the potential targets and have been demonstrated to exert a pivotal role in modulation of NAFLD...
March 1, 2017: Acta Pharmaceutica
https://www.readbyqxmd.com/read/28231050/original-research-paper-pulmonary-prophylactic-impact-of-melatonin-and-or-quercetin-a-novel-therapy-for-inflammatory-hypoxic-stress-in-rats
#14
Nouf M Al-Rasheed, Laila Fadda, Hala A Attia, Iman A Sharaf, Azza M Mohamed, Nawal M Al-Rasheed
The study aims to compare, through histological and biochemical studies, the effects of quercetin, melatonin and their combination in regulation of immuno-inflammatory mediators and heat shock protein expressions in sodium nitrite induced hypoxia in rat lungs. The results revealed that NaNO2 injection caused a significant decrease in Hb in rats, while serum levels of TNF-α, IL-6 and CRP, VEGF and HSP70 were elevated compared to the control group. Administration of melatonin, quercetin or their combination before NaNO2 injection markedly reduced these parameters...
March 1, 2017: Acta Pharmaceutica
https://www.readbyqxmd.com/read/28230744/s-allylmercaptocysteine%C3%A2-attenuates%C3%A2-cisplatin-induced%C3%A2-nephrotoxicity%C3%A2-through%C3%A2-suppression%C3%A2-of%C3%A2-apoptosis-%C3%A2-oxidative%C3%A2-stress-%C3%A2-and%C3%A2-inflammation
#15
Xiaosong Zhu, Xiaoyan Jiang, Ang Li, Zhongxi Zhao, Siying Li
Cisplatin is a potent chemotherapeutic agent, but its clinical usage is limited by nephrotoxicity. S-allylmercaptocysteine (SAMC), one of the water-soluble organosulfur garlic derivatives, has antioxidant and anti-inflammatory properties and plays an important role in protecting cells from apoptosis. This study aims to examine the protective effects of SAMC on cisplatin nephrotoxicity and to explore the mechanism of its renoprotection. Rats were treated with cisplatin with or without pre-treatment with SAMC...
February 20, 2017: Nutrients
https://www.readbyqxmd.com/read/28230716/experimental-texture-analysis-in-glioblastoma-a-methodological-study
#16
Nicolin Hainc, Christoph Stippich, Bram Stieltjes, Severina Leu, Andrea Bink
OBJECTIVES: Analysis of a single slice of a tumor to extract biomarkers for texture analysis may result in loss of information. We investigated correlation of fractional volumes to entire tumor volumes and introduced expanded regions of interest (ROIs) outside the visual tumor borders in glioblastoma. MATERIALS AND METHODS: Retrospective slice-by-slice volumetric texture analysis on 46 brain magnetic resonance imaging subjects with histologically confirmed glioblastoma was performed...
February 22, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28230324/effects-of-short-term-energy-restriction-on-liver-lipid-content-and-inflammatory-status-in-severely-obese-adults-results-of-a-randomised-controlled-trial-rct-using-two-dietary-approaches
#17
Emma L Baldry, Guruprasad P Aithal, Philip Kaye, Iskandar R Idris, Andrew Bennett, Paul C Leeder, Ian A Macdonald
Short-term very low energy diets (VLED) are used in clinical practice prior to bariatric surgery, however, regimens vary and outcomes for a short intervention are unclear. We examined the effect of two VLEDs; a food-based diet (FD) and meal replacement plan (MRP) (LighterLife) over two weeks in a randomised controlled trial (RCT). We collected clinical and anthropometric data, fasting blood samples, and dietary evaluation questionnaires. Surgeons took liver biopsies and made a visual assessment of the liver...
February 23, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28230270/a-phase-2-study-of-lenalidomide-rituximab-cyclophosphamide-and-dexamethasone-lr-cd-for-untreated-low-grade-non-hodgkin-lymphoma-requiring-therapy
#18
Allison Rosenthal, Amylou C Dueck, Stephen Ansell, Katherine Gano, Christopher Conley, Grzegorz S Nowakowski, John Camoriano, Jose F Leis, Joseph R Mikhael, A Keith Stewart, David Inwards, David Dingli, Shaji Kumar, Pierre Noel, Morie Gertz, Luis Porrata, Stephen Russell, Joseph Colgan, Rafael Fonseca, Thomas M Habermann, Prashant Kapoor, Francis Buadi, Nelson Leung, Rodger Tiedemann, Thomas E Witzig, Craig Reeder
Patients with indolent NHL have multiple treatment options yet there is no consensus as to the best initial therapy. Lenalidomide, an immunomodulatory agent, has single agent activity in relapsed lymphoma. This trial was conducted to assess feasibility, efficacy and safety of adding lenalidomide to rituximab, cyclophosphamide, and dexamethasone (LR-CD) in untreated indolent NHL patients requiring therapy. This was a single institution phase II trial. Treatment consisted of IV rituximab 375mg/m(2) day 1, oral lenalidomide 20mg days 1-21, cyclophosphamide 250mg/m(2) days 1, 8, 15, and dexamethasone 40mg days 1, 8, 15, 22, of a 28-day cycle...
February 23, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28230245/ct-guided-percutaneous-hookwire-localization-increases-the-efficacy-and-safety-of-vats-for-pulmonary-nodules
#19
Theo J Klinkenberg, Lars Dinjens, Rienhart F E Wolf, Anthonie J van der Wekken, Caroline van de Wauwer, Geertruida H de Bock, Wim Timens, Massimo A Mariani, Harry J M Groen
BACKGROUND AND OBJECTIVES: The diagnosis of pulmonary nodules of unknown origin is challenging, and such nodules are not always suitable for transthoracic needle biopsy. With the advent of video assisted thoracic surgery (VATS) and CT-guided percutaneous hookwire localization (CT-PHL) we hypothesized that the combination of these two procedures will improve early diagnosis. METHODS: Selection criteria were a nodule not well approachable with fine needle biopsy and the therapeutic consequences of a diagnosis as assessed by the multidisciplinary oncology board...
February 23, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28230236/a-proposal-of-post-operative-nomogram-for-overall-survival-in-patients-with-renal-cell-carcinoma-and-venous-tumor-thrombus
#20
Liangyou Gu, Zihuan Wang, Luyao Chen, Xin Ma, Hongzhao Li, Wenyuan Nie, Cheng Peng, Xintao Li, Yu Gao, Xu Zhang
OBJECTIVE: To identify the predictors of overall survival (OS) and create a post-operative prognostic model for patients with renal cell carcinoma (RCC) and venous tumor thrombus (VTT). PATIENTS AND METHODS: The study cohort included patients with RCC and VTT that underwent full surgical resection between 2006 and 2016. Univariate and multivariate analyses were used to determine the prognostic factors of OS. A nomogram was developed and internally calibrated by bootstrap resampling method...
February 23, 2017: Journal of Surgical Oncology
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