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https://www.readbyqxmd.com/read/28454419/neutrophil-lymphocyte-ratio-predicts-survival-in-pancreatic-neuroendocrine-tumors
#1
Guopei Luo, Chen Liu, He Cheng, Kaizhou Jin, Meng Guo, Yu Lu, Jiang Long, Jin Xu, Quanxing Ni, Jie Chen, Xianjun Yu
Although the prognostic role of neutrophil-lymphocyte ratio (NLR) has been confirmed in a variety of tumors, the prognostic role of NLR in pancreatic neuroendocrine tumors (PNETs) has not been examined. The present study was performed to assess the role of NLR as a prognostic factor in patients with PNETs. Clinical data were retrospectively retrieved from a single institution. The best cut-off value for baseline NLR levels was determined by the receiver operating characteristic (ROC) curve and area under the ROC curve...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454416/survivin-dex3-as-a-biomarker-of-thyroid-cancers-a-study-at-the-mrna-and-protein-level
#2
Joanna Waligórska-Stachura, Nadia Sawicka-Gutaj, Maciej Zabel, Mirosław Andrusiewicz, Paweł Gut, Agata Czarnywojtek, Marek Ruchała
Survivin and its splice variants DEx3 and 2B are involved in pathogenesis of numerous types of cancer. Proliferating cell nuclear antigen (PCNA) level correlates with cellular proliferation. The present study aimed to analyze the potential utility of survivin and its splice variants DEx3 and 2B as biomarkers for thyroid cancer. PCNA, survivin and its splice variants DEx3 and 2B expressions were analyzed in 22 tissue samples (15 thyroid cancers and 7 benign lesions) by reverse transcription-quantitative polymerase chain reaction and immunohistochemistry (IHC)...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454140/electro-optic-sampling-of-terahertz-waves-by-laser-pulses-with-an-edge-cut-spectrum-in-birefringent-crystal
#3
I E Ilyakov, G Kh Kitaeva, B V Shishkin, R A Akhmedzhanov
We demonstrate a terahertz detection technique based on variations of the energy of femtosecond laser pulses with an edge-cut spectrum in birefringent electro-optic crystal-periodically poled lithium niobate (PPLN). The method is compared with the standard electro-optic detection scheme utilizing GaP crystal. The experimental results show that the studied technique is suited for use with birefringent crystals and allows one to achieve a much better response to the terahertz wave radiation at quasi-phase-matching frequencies of PPLN...
May 1, 2017: Optics Letters
https://www.readbyqxmd.com/read/28454133/aperture-scalable-high-average-power-capable-hybrid-electrode-pockels-cell
#4
Jun Zhang, Xiongjun Zhang, Jiangang Zheng, Jiao Long, Xiaolin Tian, Kuixing Zheng, Qihua Zhu, Xiaofeng Wei
We demonstrate a hybrid-electrode Pockels cell (HEPC) using a thin z-cut deuterated potassium dihydrogen phosphate (DKDP) crystal. The device is a reflective, longitudinally driven, longitudinally cooled Pockels cell, constructed with a plasma chamber providing the incident-side electrode and a silicon-substrate mirror serving the three purposes of a mirror, a back-side electrode, and a heat sink. The mirror and the DKDP are thermally coupled through a sub-millimeter, inert gas-filled gap. A time-multiplex pass-by driving method is proposed to favor low-voltage and fast-response operation...
May 1, 2017: Optics Letters
https://www.readbyqxmd.com/read/28453980/effect-of-ultimate-ph-and-ageing-on-thermal-denaturation-of-bovine-muscle-proteins
#5
Juan D Rios-Mera, Jair Sebastião da Silva Pinto, Carmen J Contreras-Castillo
The thermal denaturation of proteins was evaluated in the natural state of bovine muscle using differential scanning calorimetry (DSC). The Longissimus lumborum muscle was selected according to ultimate pH (pHu) values classified into two groups: low pHu with values between 5.4 and 5.8, and intermediate pHu with values between 5.81 and 6.19. The muscles were cut and aged at 2°C up to 21d post mortem. The three maximum temperatures of denaturation (Tmax1, Tmax2, Tmax3) found in muscle were evaluated, showing higher thermal stability in the intermediate pHu group, which could be an indicator of protection of proteins against aggregation or enzymatic activity...
April 20, 2017: Meat Science
https://www.readbyqxmd.com/read/28453906/oral-treponeme-major-surface-protein-sequence-diversity-and-distributions-within-periodontal-niches
#6
Meng You, Yuki Chan, Donnabella C Lacap-Bugler, Yong-Biao Huo, Wenling Gao, W Keung Leung, Rory M Watt
Treponema denticola and other species (phylotypes) of oral spirochetes are widely-considered to play important etiological roles in periodontitis and other oral infections. The major surface protein (Msp) of T. denticola is directly implicated in several pathological mechanisms. Here, we have analyzed msp sequence diversity across 68 strains of oral phylogroup 1 and 2 treponemes; including reference strains of T. denticola, Treponema putidum, Treponema medium, 'Treponema vincentii', and 'Treponema sinensis'...
April 28, 2017: Molecular Oral Microbiology
https://www.readbyqxmd.com/read/28453905/transdiagnostic-neural-correlates-of-affective-face-processing-in-anxiety-and-depression
#7
Annmarie MacNamara, Heide Klumpp, Amy E Kennedy, Scott A Langenecker, K Luan Phan
BACKGROUND: It is unknown whether there are neurobiologic differences between various anxiety and depressive disorders, or whether they are characterized by shared neurobiologic variation that cuts across diagnostic boundaries. For instance, multiple anxiety disorders and depression may be characterized by abnormalities in blood oxygen-level dependent (BOLD) response during the processing of affective scenes and faces. To interrogate the shared or unique nature of these aberrations, research that examines the influence of transdiagnostic, dimensional predictors across multiple diagnoses is needed...
April 28, 2017: Depression and Anxiety
https://www.readbyqxmd.com/read/28453854/the-dynamics-of-the-monomeric-restriction-endonuclease-bcni-during-its-interaction-with-dna
#8
Georgij Kostiuk, Jasmina Dikic, Friedrich W Schwarz, Giedrius Sasnauskas, Ralf Seidel, Virginijus Siksnys
Endonucleases that generate DNA double strand breaks often employ two independent subunits such that the active site from each subunit cuts either DNA strand. Restriction enzyme BcnI is a remarkable exception. It binds to the 5΄-CC/SGG-3΄ (where S = C or G, '/' designates the cleavage position) target as a monomer forming an asymmetric complex, where a single catalytic center approaches the scissile phosphodiester bond in one of DNA strands. Bulk kinetic measurements have previously shown that the same BcnI molecule cuts both DNA strands at the target site without dissociation from the DNA...
April 27, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28453686/the-null-hypothesis-of-gsea-and-a-novel-statistical-model-for-competitive-gene-set-analysis
#9
Birgit Debrabant
Motivation: Competitive gene set analysis intends to assess whether a specific set of genes is more associated with a trait than the remaining genes. However, the statistical models assumed to date to underly these methods do not enable a clear cut formulation of the competitive null hypothesis. This is a major handicap to the interpretation of results obtained from a gene set analysis. Results: This work presents a hierarchical statistical model based on the notion of dependence measures, which overcomes this problem...
May 1, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28453603/the-effect-of-insomnia-on-neuropsychological-functioning-in-patients-with-comorbid-symptoms-of-pain-fatigue-and-mood-disorders
#10
Julie Aasvik, Tore C Stiles, Astrid Woodhouse, Petter Borchgrevink, Nils Inge Landrø
Objectives: To examine if elevated symptoms of insomnia affects neuropsychological functioning in patients with concurrent symptoms of pain, fatigue, and mood disorders. Methods and results: A total of seventy-six subjects participated in this (cross-sectional) study. Based on the cut-off score guidelines from The Insomnia Severity Index subjects were assigned to either a clinical insomnia group (N = 35) or a comparison group (N = 41). Factors such as age, general cognitive functioning, and symptoms of pain, fatigue, depression, and anxiety did not differ between the groups...
April 27, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28453573/how-reliable-and-valid-is-the-teacher-version-of-the-strengths-and-difficulties-questionnaire-in-primary-school-children
#11
Meta van den Heuvel, Danielle E M C Jansen, Roy E Stewart, Bouwien C M Smits-Engelsman, Sijmen A Reijneveld, Boudien C T Flapper
INTRODUCTION: The Strengths and Difficulties Questionnaire (SDQ) is validated for parents, but not yet for teachers in a broad age range of children. We conducted a cross-sectional study with 4-10 years old school children to investigate if the SDQ-T can be used instead of the validated but lengthy Teacher's Report Form (TRF) to acquire information about emotional and behavioral problems in the school community. METHODS: Teachers of 453 children from primary schools were approached...
2017: PloS One
https://www.readbyqxmd.com/read/28453548/self-feedbacks-determine-the-sustainability-of-human-interventions-in-eco-social-complex-systems-impacts-on-biodiversity-and-ecosystem-health
#12
Marco Ortiz, Richard Levins
Several administrative polices have been implemented in order to reduce the negative impacts of fishing on natural ecosystems. Four eco-social models with different levels of complexity were constructed, which represent the seaweed harvest in central-northern Chile under two different regimes, Management and Exploitation Areas for Benthic Resources (MAEBRs) and Open Access Areas (OAAs). The dynamics of both regimes were analyzed using the following theoretical frameworks: (1) Loop Analysis, which allows the local stability or sustainability of the models and scenarios to be assessed; and (2) Hessian´s optimization procedure of a global fishery function (GFF) that represents each dynamics of each harvest...
2017: PloS One
https://www.readbyqxmd.com/read/28453506/general-overview-and-treatment-recommendations-for-young-women-with-breast-cancer
#13
Domen Ribnikar, Ivica Ratoša, Andraž Perhavec, Eitan Amir
Breast cancer in young women is a complex disease to manage due to its biological heterogeneity and special issues related to toxicity of different treatment strategies. Defining a cut-off for young age has been challenging since it is not clear whether the prognostic effect of age is continuously variable or whether there are certain thresholds at which the prognosis changes (e.g. those < 50 years of age or ≤ 35 years of age). In this review article, we define young patients as those being premenopausal...
March 2017: Revista de Investigación Clínica; Organo del Hospital de Enfermedades de la Nutrición
https://www.readbyqxmd.com/read/28449540/anisotropy-of-single-crystal-silicon-in-nanometric-cutting
#14
Zhiguo Wang, Jiaxuan Chen, Guilian Wang, Qingshun Bai, Yingchun Liang
The anisotropy exhibited by single-crystal silicon in nanometric cutting is very significant. In order to profoundly understand the effect of crystal anisotropy on cutting behaviors, a large-scale molecular dynamics model was conducted to simulate the nanometric cutting of single-crystal silicon in the (100)[0-10], (100)[0-1-1], (110)[-110], (110)[00-1], (111)[-101], and (111)[-12-1] crystal directions in this study. The simulation results show the variations of different degrees in chip, subsurface damage, cutting force, and friction coefficient with changes in crystal plane and crystal direction...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28449487/performance-in-the-shuttle-walk-test-is-associated-with-cardiopulmonary-complications-after-lung-resections
#15
Joseph Fennelly, Lauren Potter, Cecilia Pompili, Alessandro Brunelli
BACKGROUND: The current functional guidelines recommend the shuttle walk test (SWT) as an initial screening tool to identify candidates for lung resection without requiring cardiopulmonary exercise testing. This study aims to: (I) assess the use of the SWT in predicting postoperative cardiopulmonary complications; and (II) determine whether the recommended 400 m cut-off is an appropriate distance. METHODS: We retrospectively analysed 101 patients that had performed a SWT prior to surgery...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28449481/procalcitonin-as-preoperative-marker-for-surgery-in-advanced-parapneumonic-empyema
#16
Claudio Caviezel, Philipp Schuetz, Stephan Gerdes, Franco Gambazzi
BACKGROUND: The optimal time point for surgical management of advanced parapneumonic empyema in need of open pleurectomy and decortication remains unclear. We hypothesized that surgical outcomes will be better when procalcitonin (PCT) levels have dropped to normal ranges as evidence for resolution of the underlying pneumonia. METHODS: We retrospectively analyzed outcomes of 38 patients with advanced parapneumonic empyema who underwent open decortication and pleurectomy with available preoperative PCT (pPCT) values...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28449474/impact-of-lymph-node-management-on-resectable-non-small-cell-lung-cancer-patients
#17
Apichat Tantraworasin, Somcharoen Saeteng, Sophon Siwachat, Tawatchai Jiarawasupornchai, Nirush Lertprasertsuke, Sarawut Kongkarnka, Chidchanok Ruengorn, Jayanton Patumanond, Emanuela Taioli, Raja M Flores
BACKGROUND: A surgical lung resection with systematic mediastinal lymph node (LN) dissection is recommended by the National Comprehensive Cancer Network guideline. However, the effective number of dissected LNs, stations and positivity is still controversial. The aim of this study is to identify the impact of total numbers, LN stations and positivity of dissected LNs on tumor recurrence and overall death in resectable non-small cell lung cancer (NSCLC). METHODS: This prognostic study used a retrospective data collection design...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28449352/effectiveness-and-safety-of-intrathecal-ziconotide-interim-analysis-of-the-patient-registry-of-intrathecal-ziconotide-management-prizm
#18
Timothy Deer, Richard L Rauck, Philip Kim, Michael F Saulino, Mark Wallace, Eric J Grigsby, I-Zu Huang, Fannie Mori, Geertrui F Vanhove, Gladstone McDowell
BACKGROUND: The Patient Registry of Intrathecal Ziconotide Management (PRIZM) evaluates long-term effectiveness, safety, and tolerability of intrathecal ziconotide treatment in clinical practice. METHODS: PRIZM is an open-label, long-term, multicenter, observational study of adult patients with severe chronic pain. This interim analysis (data through July 10, 2015) of ziconotide as the first versus not first intrathecal agent in pump included change from baseline in Numeric Pain Rating Scale (NPRS; primary efficacy measure) and Patient Global Impression of Change (PGIC) score...
April 27, 2017: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/28448892/role-of-procalcitonin-in-infected-diabetic-foot-ulcer
#19
Jung Ho Park, Dong Hun Suh, Hak Jun Kim, Yong In Lee, Il Hoon Kwak, Gi Won Choi
AIMS: Procalcitonin (PCT) has been recently accepted as a marker for diagnosing infection. The aim of the present study was to determine whether PCT levels are associated with infection severity of diabetic foot ulcers and whether PCT levels would be helpful to differentiate infected diabetic foot ulcer (IDFU) from IDFU associated with other infectious diseases (IDFU+O). METHODS: We prospectively included 123 diabetic patients hospitalized for IDFU. Infection severity of diabetic foot ulcers was graded according to the Infectious Diseases Society of America-International Working Group on the Diabetic Foot clinical classification of diabetic foot infection...
April 13, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28448859/evolution-of-the-methodological-quality-of-controlled-clinical-trials-for-myofascial-trigger-point-treatments-for-the-period-1978-2015-a-systematic-review
#20
Rahel Stoop, Ron Clijsen, Diego Leoni, Emiliano Soldini, Greta Castellini, Valentina Redaelli, Marco Barbero
BACKGROUND: The methodological quality of controlled clinical trials (CCTs) of physiotherapeutic treatment modalities for myofascial trigger points (MTrP) has not been investigated yet. OBJECTIVES: To detect the methodological quality of CCTs for physiotherapy treatments of MTrPs and demonstrating the possible increase over time. DESIGN: Systematic review. METHODS: A systematic search was conducted in two databases, Physiotherapy Evidence Database (PEDro) and Medicine Medical Literature Analysis and Retrieval System online (MEDLINE), using the same keywords and selection procedure corresponding to pre-defined inclusion criteria...
April 18, 2017: Musculoskeletal Science & Practice
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