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https://www.readbyqxmd.com/read/28734353/streptavidin-biotin-peroxidase-nanocomplex-amplified-microfluidics-immunoassays-for-simultaneous-detection-of-inflammatory-biomarkers
#1
Jing Wu, Yiping Chen, Mingzhu Yang, Yu Wang, Cheng Zhang, Mo Yang, Jiashu Sun, Mengxia Xie, Xingyu Jiang
Simultaneous, sensitive and quantitative detection of biomarkers in infectious disease is crucial for guiding antimicrobial treatment and predicting prognosis. This work reported an ultrasensitive and quantitative microfluidic immunoassay combined with the streptavidin-biotin-peroxidase (SA-B-HRP) nanocomplex-signal amplification system (MIS) to detect two inflammatory biomarkers, procalcitonin (PCT, for discriminating bacterial infections from nonbacterial infections) and interleukin-6 (IL-6, for monitoring the kinetics of infectious disease) simultaneously...
August 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28730675/hierarchical-hybrids-integrated-by-dual-polypyrrole-based-porous-carbons-for-enhanced-capacitive-performance
#2
Zhiwei Li, Nannan Chen, Hongyu Mi, Junhong Ma, Yahong Xie, Jieshan Qiu
Architectural design of nitrogenous polymer-based carbons represents a facile and efficient strategy in performance improvement because of their morphological diversity, tailorability, and N-containing structure. In this research, polypyrrole-derived porous carbons (A-PCS and A-PCT) in zero- and one-dimensional (0D and 1D) forms are first integrated to nitrogen-doped hierarchically porous A-PCS/PCT hybrids through an easy multi-step method. This integration, along with chemical activation, prevents serious agglomeration of carbon particles or tubes and creates a through-connected porous network structure, leading to the improved textural properties (high surface area of 1684 m2 g-1, high pore volume of 1...
July 21, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28727802/diagnostic-accuracy-of-procalcitonin-neutrophil-lymphocyte-count-ratio-c-reactive-protein-and-lactate-in-patients-with-suspected-bacterial-sepsis
#3
Lars Ljungström, Anna-Karin Pernestig, Gunnar Jacobsson, Rune Andersson, Barbara Usener, Diana Tilevik
BACKGROUND: Early recognition is a key factor to achieve improved outcomes for septic patients. Combinations of biomarkers, as opposed to single ones, may improve timely diagnosis and survival. We investigated the performance characteristics of sepsis biomarkers, alone and in combination, for diagnosis of verified bacterial sepsis using Sepsis-2 and Sepsis-3 criteria, respectively. METHODS: Procalcitonin (PCT), neutrophil-lymphocyte count ratio (NLCR), C-reactive protein (CRP), and lactate were determined in a total of 1,572 episodes of adult patients admitted to the emergency department on suspicion of sepsis...
2017: PloS One
https://www.readbyqxmd.com/read/28726056/interobserver-variability-of-patient-positioning-using-four-different-ct-datasets-for-image-registration-in-lung-stereotactic-body-radiotherapy
#4
Markus Oechsner, Barbara Chizzali, Michal Devecka, Stefan Münch, Stephanie Elisabeth Combs, Jan Jakob Wilkens, Marciana Nona Duma
PURPOSE: To assess the impact of different reference CT datasets on manual image registration with free-breathing three-dimensional (3D) cone beam CTs (FB-CBCT) for patient positioning by several observers. METHODS: For 48 patients with lung lesions, manual image registration with FB-CBCTs was performed by four observers. A slow planning CT (PCT), average intensity projection (AIP), maximum intensity projection (MIP), and midventilation CT (MidV) were used as reference images...
July 19, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28720036/procalcitonin-to-detect-bacterial-infections-in-critically-ill-pediatric-patients
#5
David M Jacobs, Maya Holsen, Shirley Chen, Nicholas M Fusco, Amanda B Hassinger
The diagnostic power of procalcitonin (PCT) in the pediatric intensive care unit (PICU) is uncertain. This study aimed to determine the diagnostic ability of PCT to detect serious bacterial infections (SBI) in a heterogeneous PICU population. This was a retrospective cohort study of patients on whom a PCT level was obtained within 48 hours of admission to a PICU from 2013 to 2015. Discriminatory ability of PCT to predict SBI was examined by test and receiver operating characteristics (AUC [area under the curve]-ROC)...
August 2017: Clinical Pediatrics
https://www.readbyqxmd.com/read/28716595/the-risk-stratification-and-prognostic-evaluation-of-soluble-programmed-death-1-on-patients-with-sepsis-in-emergency-department
#6
Yongzhen Zhao, Yumei Jia, Chunsheng Li, Yingying Fang, Rui Shao
OBJECTIVE: To evaluate the efficacy of soluble programmed death-1 (sPD-1) for risk stratification and prediction of 28-day mortality in patients with sepsis, we compared serum sPD-1 with procalcitonin (PCT), C-reactive protein (CRP), and the Mortality in Emergency Department Sepsis (MEDS) score. METHODS: A total of 60 healthy volunteers and 595 emergency department (ED) patients were recruited for this prospective cohort study. According to the severity of their condition on ED arrival, the patients were allocated to the systemic inflammatory response syndrome group (130 cases), sepsis group (276 cases), severe sepsis group (121 cases), and septic shock group (68 cases)...
July 4, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28715205/polymerase-chain-transcription-exponential-synthesis-of-rna-and-modified-rna
#7
Tingjian Chen, Floyd E Romesberg
There is increasing demand for RNA and modified RNA oligonucleotides, but in contrast to DNA oligonucleotides, they are typically prohibitively expensive to chemically synthesize, and unlike longer RNAs, they are only inefficiently produced by in vitro transcription, especially when modified. To address these challenges, we previously reported the evolution of a thermostable DNA polymerase, SFM4-3, that more efficiently accepts substrates with 2'-substituents. We now show that SFM4-3 efficiently transcribes RNA or 2'-F-modified RNA and that it also efficiently PCR amplifies oligonucleotides of mixed RNA and DNA composition...
July 17, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28715073/platelet-distribution-width-and-plateletcrit-novel-biomarkers-of-st-elevation-myocardial-infarction-in-young-patients
#8
Mehmet Serkan Çetin, Elif Hande Özcan Çetin, Ahmet Akdi, Dursun Aras, Serkan Topaloğlu, Ahmet Temizhan, Sinan Aydoğdu
BACKGROUND: Platelets play a central role in myocardial infarction, and platelet activity can be evaluated with platelet indices including, platelet distribution width (PDW) and plateletcrit (PCT). These indices have been demonstrated as markers of prothrombotic state in cardiovascular diseases. Therefore, we aimed to investigate, the usefulness of these biomarkers in ST-elevation myocardial infarction (STEMI) in young patients. METHODS: This cross-sectional study consisted 565 subjects which classified into three groups: group 1 (168 young patients with STEMI), group 2 (173 non-young patients with STEMI), and group 3 (224 age-matched controls with angiographically normal coronary arteries)...
July 17, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28714429/structural-brain-correlations-of-visuospatial-and-visuoperceptual-tests-in-parkinson-s-disease
#9
Anna Isabel Garcia-Diaz, Barbara Segura, Hugo Cesar Baggio, Maria Jose Marti, Francesc Valldeoriola, Yaroslau Compta, Nuria Bargallo, Carme Uribe, Anna Campabadal, Alexandra Abos, Carme Junque
BACKGROUND: Diagnosis of mild cognitive impairment in Parkinson's disease (PD) is relevant because it is a marker for evolution to dementia. However, the selection of suitable tests to evaluate separate cognitive domains in mild cognitive impairment related to PD remains an open question. The current work aims to investigate the neuroanatomical correlates of several visuospatial/visuoperceptual tests using the same sample and a multimodal MRI approach. METHODS: The study included 36 PD patients and 20 healthy subjects matched for age, sex, and education...
July 17, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28713032/psychosocial-rehabilitation-after-war-trauma-with-adaptive-disclosure-design-and-rationale-of-a-comparative-efficacy-trial
#10
Julie D Yeterian, Danielle S Berke, Brett T Litz
BACKGROUND: Posttraumatic stress disorder (PTSD) from warzone exposure is associated with chronic and disabling social and occupational problems. However, functional impairment is rarely assessed or targeted directly in PTSD treatments, which instead focus on symptom reduction. Trauma-related contributors to diminished functioning, including guilt, shame, and anger resulting from morally compromising or loss-based war experiences, are also underemphasized. The goal of this clinical trial is to fill a substantial gap in the treatment of military-related PTSD by testing a modified Adaptive Disclosure (AD) therapy for war-related PTSD stemming from moral injury and traumatic loss focused on improving psychosocial functioning AD...
July 14, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28712039/cutaneous-manifestations-of-scleroderma-and-scleroderma-like-disorders-a-comprehensive-review
#11
REVIEW
Caterina Ferreli, Giulia Gasparini, Aurora Parodi, Emanuele Cozzani, Franco Rongioletti, Laura Atzori
Scleroderma refers to an autoimmune connective tissue fibrosing disease, including three different subsets: localized scleroderma, limited cutaneous systemic sclerosis, and diffuse cutaneous systemic sclerosis with divergent patterns of organ involvement, autoantibody profiles, management, and prognostic implications. Although systemic sclerosis is considered the disease prototype that causes cutaneous sclerosis, there are many other conditions that can mimic and be confused with SSc. They can be classified into immune-mediated/inflammatory, immune-mediated/inflammatory with abnormal deposit (mucinoses), genetic, drug-induced and toxic, metabolic, panniculitis/vascular, and (para)neoplastic disorders according to clinico-pathological and pathogenetic correlations...
July 16, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28706425/procalcitionin-as-a-diagnostic-marker-to-distinguish-upper-and-lower-gastrointestinal-perforation
#12
Yang Gao, Kai-Jiang Yu, Kai Kang, Hai-Tao Liu, Xing Zhang, Rui Huang, Jing-Dong Qu, Si-Cong Wang, Rui-Jin Liu, Yan-Song Liu, Hong-Liang Wang
AIM: To assess the accuracy of serum procalcitionin (PCT) as a diagnostic marker in verifying upper and lower gastrointestinal perforation (GIP). METHODS: This retrospective study included 46 patients from the surgical intensive care unit (ICU) of the Second Affiliated Hospital of Harbin Medical University who were confirmed to have GIP between June 2013 and December 2016. Demographic and clinical patient data were recorded on admission to ICU. Patients were divided into upper (n = 19) and lower (n = 27) GIP groups according to the perforation site (above or below Treitz ligament)...
June 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28704503/role-of-biomarkers-in-early-infectious-complications-after-lung-transplantation
#13
Borja Suberviola, Luzdivina Rellan, Jordi Riera, Reyes Iranzo, Ascension Garcia Campos, Juan Carlos Robles, Rosario Vicente, Eduardo Miñambres, Miguel Santibanez
BACKGROUND: Infections and primary graft dysfunction are devastating complications in the immediate postoperative period following lung transplantation. Nowadays, reliable diagnostic tools are not available. Biomarkers could improve early infection diagnosis. METHODS: Multicentre prospective observational study that included all centres authorized to perform lung transplantation in Spain. Lung infection and/or primary graft dysfunction presentation during study period (first postoperative week) was determined...
2017: PloS One
https://www.readbyqxmd.com/read/28700488/correlation-of-iodine-uptake-and-perfusion-parameters-between-dual-energy-ct-imaging-and-first-pass-dual-input-perfusion-ct-in-lung-cancer
#14
Xiaoliang Chen, Yanyan Xu, Jianghui Duan, Chuandong Li, Hongliang Sun, Wu Wang
To investigate the potential relationship between perfusion parameters from first-pass dual-input perfusion computed tomography (DI-PCT) and iodine uptake levels estimated from dual-energy CT (DE-CT).The pre-experimental part of this study included a dynamic DE-CT protocol in 15 patients to evaluate peak arterial enhancement of lung cancer based on time-attenuation curves, and the scan time of DE-CT was determined. In the prospective part of the study, 28 lung cancer patients underwent whole-volume perfusion CT and single-source DE-CT using 320-row CT...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28700480/prognostic-significance-of-serum-procalcitonin-in-patients-with-unresectable-hepatocellular-carcinoma-treated-with-transcatheter-arterial-chemoembolization-a-retrospective-analysis-of-509-cases
#15
Hujia Shen, Susu Zheng, Rongxin Chen, Xuejuan Jin, Xin Xu, Chuyu Jing, Jiajia Lin, Juan Zhang, Meixia Zhang, Lan Zhang, Xiaoying Xie, Kun Guo, Zhenggang Ren, Shanshan Lin, Boheng Zhang
Although procalcitonin (PCT) is a valid marker for early diagnosis of bacterial infections, its accuracy in hepatocellular carcinoma (HCC) patients is unknown. The aim of this study was to investigate the prognostic significance of PCT in patients with unresectable HCC treated with transcatheter arterial chemoembolization (TACE).A total of 509 patients with unresectable HCC initially treated with TACE were enrolled in this retrospective study. According to quartile of the PCT values, all patients were divided into 4 groups...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28696713/modulation-of-the-binding-affinity-of-polyzwitterion-conjugated-protein-by-ion-specific-effects-in-crowded-environments
#16
Wangqin Song, Jie Zhu, Lvdan Liu, Guangming Liu
Macromolecular crowding could influence the binding affinity of the polyzwitterion-conjugated proteins. Herein, the hydrolysis of N-succinyl-Ala-Ala-Pro-Phe p-nitroanilide by the poly(carboxybetaine) conjugated α-chymotrypsin (PCT) was employed as a model system to investigate the modulation of the binding affinity of the polyzwitterion-conjugated proteins by the ion-specific effects in the crowded environments. In comparison with the bare α-chymotrypsin (BCT), the binding affinity of the PCT to the peptide is stronger in the dilute solutions but becomes weaker in the crowded environments...
July 11, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28693606/combined-use-of-serum-1-3-%C3%AE-d-glucan-and-procalcitonin-for-the-early-differential-diagnosis-between-candidaemia-and-bacteraemia-in-intensive-care-units
#17
Daniele Roberto Giacobbe, Malgorzata Mikulska, Mario Tumbarello, Elisa Furfaro, Marzia Spadaro, Angela Raffaella Losito, Alessio Mesini, Gennaro De Pascale, Anna Marchese, Marco Bruzzone, Paolo Pelosi, Michele Mussap, Alexandre Molin, Massimo Antonelli, Brunella Posteraro, Maurizio Sanguinetti, Claudio Viscoli, Valerio Del Bono
BACKGROUND: This study aimed to assess the combined performance of serum (1,3)-β-D-glucan (BDG) and procalcitonin (PCT) for the differential diagnosis between candidaemia and bacteraemia in three intensive care units (ICUs) in two large teaching hospitals in Italy. METHODS: From June 2014 to December 2015, all adult patients admitted to the ICU who had a culture-proven candidaemia or bacteraemia, as well as BDG and PCT measured closely to the time of the index culture, were included in the study...
July 10, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28691546/procalcitonin-in-amniotic-fluid-at-the-time-of-genetic-amniocentesis-and-preterm-delivery
#18
Robyn T Bilinski, Shauna F Williams, Joseph J Apuzzio
PURPOSE: Procalcitonin (PCT) is an acute phase protein that has been infrequently studied in amniotic fluid. We sought to determine if PCT levels measured in amniotic fluid samples at the time of genetic amniocentesis are predictive of preterm delivery. MATERIALS AND METHODS: A retrospective cohort study was performed on all women presenting for genetic amniocentesis between 15-23 weeks of pregnancy at our institution from 2011 to 2013 with stored amniotic fluid samples...
July 10, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28690030/procalcitonin-as-a-diagnostic-biomarker-for-septic-shock-and-bloodstream-infection-in-burn-patients-from-the-formosa-fun-coast-dust-explosion
#19
Rui-Xin Wu, Chih-Chien Chiu, Tzu-Chao Lin, Ya-Sung Yang, Yi Lee, Jung-Chung Lin, Feng-Yee Chang
BACKGROUND/PURPOSE: Infection is the most common cause of death following burn injury. The study was conducted to compare the diagnostic value of serum procalcitonin (PCT) with the other current benchmarks as early predictors of septic shock and bloodstream infection in burn patients. METHODS: We included 24 patients admitted to the Burn Unit of a medical center from June 2015 to December 2015 from the Formosa Fun Coast dust explosion. We categorized all patients at initial admission into either sepsis or septic shock groups...
June 22, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28689593/dermatologic-manifestations-of-chronic-hepatitis-c-infection
#20
REVIEW
Mehmet Sayiner, Pegah Golabi, Freba Farhat, Zobair M Younossi
Chronic hepatitis C virus (HCV) infection is associated with various extrahepatic manifestations, including dermatologic involvement mostly caused by immune complexes. Mixed cryoglobulinemia has a strong relationship with HCV with 95% of these patients being infected with HCV. Lichen planus is a disease of the squamous epithelium and may affect any part of the skin, with 4% to 24% of patients with lichen planus reported to have chronic HCV infection. Porphyria cutanea tarda is the most common form of porphyria, and it is thought that HCV interferes with iron stores, which can promote porphyria cutanea tarda...
August 2017: Clinics in Liver Disease
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