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https://www.readbyqxmd.com/read/28537901/inflammatory-cytokines-are-associated-with-response-and-prognosis-in-patients-with-esophageal-cancer
#1
Susanne Blank, Henrik Nienhüser, Lena Dreikhausen, Leila Sisic, Ulrike Heger, Katja Ott, Thomas Schmidt
BACKGROUND: Esophageal cancer is often marked by aggressive tumor growth and poor prognosis. Patient groups who benefit from perioperative therapy are not yet defined. The tumor microenvironment and circulating factors as possible predictors of response and prognosis gain interest. This study aimed to investigate cytokines in patients' serum and tumor tissue with regard to response and prognosis. RESULTS: Median survival between SCC and AC was not different (published previously)...
May 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28537881/interleukin-35-expression-is-associated-with-colon-cancer-progression
#2
Jian Zhang, Tao Mao, Shuyun Wang, Dongsheng Wang, Zhaojian Niu, Zhenqing Sun, Jianli Zhang
Colon cancer development is closely related to inflammation. Thus, we conducted the present investigation to study the effects of IL-35 (Interleukin 35), a newly identified anti-inflammatory factor, on colon cancer development. We first evaluated the IL-35 expression in 186 pairs of colon cancer samples and paired adjacent normal tissues by qPCR, ELISA (Enzyme-linked immunoassay) and tissue microarrays. Then the role of IL-35 on patient survival rates, colon cancer progression and their sensitivity to chemotherapy drugs were assessed...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28535353/broad-specificity-immunoassay-for-simultaneous-detection-of-ochratoxins-a-b-and-c-in-millet-and-maize
#3
Yaqiong Zhang, Lanteng Wang, Xing Shen, Xiaoqun Wei, Xinan Huang, Yingju Liu, Xiulan Sun, Zhanhui Wang, Yuanming Sun, Zhenlin Xu, Sergei Alexandrovich Eremin, Hongtao Lei
Ochratoxins A, B and C (OTA, OTB and OTC) can be found in cereals and feeds, the simultaneous detection of these ochratoxins holds a great need in food safety. In this study, four antibodies raised from two ochrotoxin haptens and two coating antigens were compared, and then a sensitive and broad-specificity enzyme-linked immunosorbent assay (ELISA) was established for the simultaneous determination of three ochratoxins, where the detection limits were 0.005, 0.001 and 0.001 ng/mL for OTA, OTB and OTC, respectively, and recoveries of three ochratoxins were between 84...
May 23, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28534915/quantum-dot-based-sensitive-detection-of-disease-specific-exosome-in-serum
#4
Kseniia Boriachek, Md Nazmul Islam, Vinod Gopalan, Alfred K Lam, Nam-Trung Nguyen, Muhammad J A Shiddiky
Tumor-derived exosomes have emerged as promising cancer biomarkers due to their unique composition and functions. Herein, we report a stripping voltammetric immunoassay for the electrochemical detection of disease-specific exosomes using quantum dots as signal amplifiers. The assay involves three subsequent steps where bulk exosome populations are initially magnetically captured on magnetic beads by a generic tetraspanin antibody (e.g., CD9 or CD63) followed by the identification of disease-specific exosomes using cancer-related...
May 23, 2017: Analyst
https://www.readbyqxmd.com/read/28534685/biotin-interference-with-routine-clinical-immunoassays-understand-the-causes-and-mitigate-the-risks
#5
Shanika Samarasinghe, Farah Meah, Vinita Singh, Arshi Basit, Nicholas Emanuele, Mary Ann Emanuele, Alaleh Mazhari, Earle W Holmes
OBJECTIVES: The objectives of this report are to review the mechanisms of biotin interference with streptavidin/biotin-based immunoassays, identify automated immunoassay systems vulnerable to biotin interference, describe how to estimate and minimize the risk of biotin interference in vulnerable assays, and review the literature pertaining to biotin interference in endocrine function tests. METHODS: The data in the manufacturer's "Instructions for Use" for each of the methods utilized by seven immunoassay system were evaluated...
May 23, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28534612/sers-activated-platforms-for-immunoassay-probes-encoding-methods-and-applications
#6
Zhuyuan Wang, Shenfei Zong, Lei Wu, Dan Zhu, Yiping Cui
Owing to their excellent multiplexing ability, high sensitivity, and large dynamic range, immunoassays using surface-enhanced Raman scattering (SERS) as the readout signal have found prosperous applications in fields such as disease diagnosis, environmental surveillance, and food safety supervision. Various ever-increasing demands have promoted SERS-based immunoassays from the classical sandwich-type ones to those integrated with fascinating automatic platforms (e.g., test strips and microfluidic chips). As recent years have witnessed impressive progress in SERS immunoassays, we try to comprehensively cover SERS-based immunoassays from their basic working principles to specific applications...
May 23, 2017: Chemical Reviews
https://www.readbyqxmd.com/read/28533922/correlation-of-rapid-point-of-care-vs-send-out-fecal-calprotectin-monitoring-in-pediatric-inflammatory-bowel-disease
#7
Alexis Rodriguez, Lauren Yokomizo, Megan Christofferson, Danielle Barnes, Nasim Khavari, K T Park
AIM: To assess the correlation between the send-out enzyme-linked immuno sorbent assay (ELISA) and the point-of-care (POC) calprotectin test in pediatric inflammatory bowel disease (IBD) patients. METHODS: We prospectively collected stool samples in pediatric IBD patients for concomitant send-out ELISA analysis and POC calprotectin testing using the Quantum Blue(®) (QB) Extended immunoassay. Continuous results between 17 to 1000 μg/g were considered for comparison...
May 6, 2017: World Journal of Gastrointestinal Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28532934/effects-of-topical-ketorolac-tromethamine-0-45-on-intraoperative-miosis-and-prostaglandin-e2-release-during-femtosecond-laser-assisted-cataract-surgery
#8
Jong Hwa Jun, Young-Sik Yoo, Sung A Lim, Choun-Ki Joo
PURPOSE: To determine the effects of topical 0.45% ketorolac tromethamine on intraoperative miosis and prostaglandin E2 (PGE2) release during femtosecond laser-assisted cataract surgery. SETTING: Seoul St. Mary's Hospital, Seoul, Korea. DESIGN: Prospective case series. METHODS: The study comprised the following 3 groups: conventional cataract surgery without topical NSAIDs (conventional group); femtosecond laser-assisted cataract surgery with preoperative topical ketorolac tromethamine 0...
April 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28531215/association-of-cord-blood-chemokines-and-other-biomarkers-with-neonatal-complications-following-intrauterine-inflammation
#9
Yoshikazu Otsubo, Kunio Hashimoto, Taro Kanbe, Muneichiro Sumi, Hiroyuki Moriuchi
BACKGROUND: Intrauterine inflammation has been associated with preterm birth and neonatal complications. Few reports have comprehensively investigated multiple cytokine profiles in cord blood and precisely identified surrogate markers for intrauterine inflammation. AIM: To identify the cytokines and surrogate markers associated with intrauterine inflammation and subsequent neonatal complications. PATIENTS AND METHODS: We analyzed cord blood samples from 135 patients admitted to the neonatal intensive care unit at Sasebo City General Hospital...
2017: PloS One
https://www.readbyqxmd.com/read/28530809/preparation-of-linear-cryogel-arrays-as-a-microfluidic-platform-for-immunochromatographic-assays
#10
Marc Zinggeler, Patrick L Fosso, Yan Hao, Thomas Brandstetter, Jürgen Rühe
We describe a new microfluidic platform to perform immunochromatographic assays. The platform consists of a linear assembly of small, porous cryogel monoliths functionalized with different biomolecules and anchored in an optically transparent capillary, which serves as the microfluidic carrier. This assembly enables fluid flow by capillary action and simple optical detection. Using an in situ preparation method, individual compartments are generated from small plugs of polymer solutions that are subsequently transformed into individually functionalized cryogel monoliths through a photoinduced cross-linking reaction...
May 23, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28530385/polymeric-3d-printed-functional-microcantilevers-for-biosensing-applications
#11
Stefano Stassi, Erika Fantino, Roberta Calmo, Annalisa Chiappone, Matteo Gillono, Davide Scaiola, Candido Fabrizio Pirri, Carlo Ricciardi, Alessandro Chiado', Ignazio Roppolo
The present work shows for the first time the production of mass sensitive polymeric biosensors by 3D printing technology with intrinsic functionalities. We demonstrate the feasibility of mass sensitive biosensors in the form of microcantilever in a one-step printing process, using acrylic acid as functional co-monomer for introducing a controlled amount of functional groups that can covalently immobilize the biomolecules onto the polymer. The effectiveness of the application of 3D printed microcantilevers as biosensors is then demonstrated with their implementation in a standard immunoassay protocol...
May 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28528022/direct-effect-of-curcumin-on-porcine-ovarian-cell-functions
#12
Attila Kádasi, Nora Maruniaková, Aneta Štochmaľová, Miroslav Bauer, Roland Grossmann, Abdel Halim Harrath, Adriana Kolesárová, Alexander V Sirotkin
Curcuma longa Linn (L.) is a plant widely used in cooking (in curry powder a.o.) and in folk medicine, but its action on reproductive processes and its possible mechanisms of action remain to be investigated. The objective of this study was to examine the direct effects of curcumin, the major Curcuma longa L. molecule, on basic ovarian cell functions such as proliferation, apoptosis, viability and steroidogenesis. Porcine ovarian granulosa cells were cultured with and without curcumin (at doses of 0, 1, 10 and 100μg/ml of medium)...
May 12, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28527908/simultaneous-production-of-monoclonal-antibodies-against-bacillus-thuringiensis-bt-cry1-toxins-using-a-mixture-immunization
#13
Sa Dong, Cunzheng Zhang, Yuan Liu, Xiao Zhang, Yajing Xie, Jianfeng Zhong, Chongxin Xu, Xianjin Liu
The detections of Cry1 toxins are mainly dependent on immunoassays based on specific monoclonal antibodies (mAb). In the present study, a mixture immunization with seven Cry1 toxins was administered. The results showed that five mAbs with different characteristics, especially one mAb named 5-E8 which could recognize all the seven Cry1 toxins were obtained. Based on the 5-E8 mAb, a double antibody sandwich enzyme linked immunosorbent assay (DAS-ELISA) which can specifically detect the seven Cry1 toxins without cross-reactivity to Cry2A and vip3 was developed with the limit of detection (LOD) and limit of quantification (LOQ) of 6...
May 17, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/28527901/photonic-ring-resonance-is-a-versatile-platform-for-performing-multiplex-immunoassays-in-real-time
#14
Sasi Mudumba, Sophia de Alba, Randy Romero, Carli Cherwien, Alice Wu, Jue Wang, Martin A Gleeson, Muzammil Iqbal, Rufus W Burlingame
Photonic ring resonance is a property of light where in certain circumstances specific wavelengths are trapped in a ring resonator. Sensors based on silicon photonic ring resonators function by detecting the interaction between light circulating inside the sensor and matter deposited on the sensor surface. Binding of biological material results in a localized change in refractive index on the sensor surface, which affects the circulating optical field extending beyond the sensor boundary. That is, the resonant wavelength will change when the refractive index of the medium around the ring resonator changes...
May 17, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28526947/association-of-ulcerative-colitis-with-transcobalamin-ii-gene-polymorphisms-and-serum-homocysteine-vitamin-b12-and-folate-levels-in-chinese-patients
#15
Shuzi Zheng, Wei Yang, Chaoqun Wu, Liang Sun, Daopo Lin, Xiuqing Lin, Lijia Jiang, Ran Ding, Yi Jiang
It has been reported that abnormal elevation of homocysteine is quite prevalent in ulcerative colitis (UC) patients. We attempted to explore the relationship of UC with transcobalamin II (TCN2) gene polymorphisms and serum homocysteine, vitamin B12, and folate levels in Chinese patients. TCN2 (rs1801198, rs9606756) genotypes were detected by the improved multiple ligase detection reaction (iMLDR) technique in 527 UC patients and 574 controls. Moreover, 128 UC patients and 138 controls were randomly selected for the measurement of homocysteine, vitamin B12, and folate levels by enzymatic cycling assay or chemiluminescence immunoassay...
May 19, 2017: Immunogenetics
https://www.readbyqxmd.com/read/28526926/higher-prevalence-of-vitamin-d-deficiency-in-german-pregnant-women-compared-to-non-pregnant-women
#16
Sandra Gellert, Alexander Ströhle, Norman Bitterlich, Andreas Hahn
PURPOSE: Adequate vitamin D status is crucial for normal development of the fetus and for maternal health. As data on vitamin D status (25-hydroxyvitamin D, 25(OH)D) in German women of different states of pregnancy were not available, this study compared the vitamin D status of German women in all trimesters of pregnancy with that of non-pregnant women. METHODS: The study sample of 858 women (18-45 years) was recruited from April 2013 to March 2015 as a part of the cross-sectional Germany-wide VitaMinFemin study...
May 19, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28526556/circulating-levels-of-cortistatin-are-correlated-with-metabolic-parameters-in-patients-with-newly-diagnosed-type-2-diabetes-mellitus
#17
Wenjia Chen, Yu Fu, Xinhua Yin, Yue Liu
Cortistatin (CST) is a recently discovered cyclic neuropeptide with multiple bioactive effects. The aim of this study was to investigate the relationship between plasma CST and various metabolic markers in patients with newly diagnosed type 2 diabetes mellitus (T2DM). For this study, 60 patients with newly diagnosed T2DM and 38 age- and gender-matched healthy controls were recruited. Fasting plasma glucose (FPG), serum insulin and hemoglobin A1c (HbA1c) levels and a blood lipid profile were obtained with commercially available diagnostic reagents...
May 16, 2017: Peptides
https://www.readbyqxmd.com/read/28523955/collaborative-cross-mouse-population-for-studying-the-alveolar-bone-changes-and-impaired-glucose-tolerance-comorbidity-after-high-fat-diet-consumption
#18
Aysar Nashef, Hanifa J Abu-Toamih Atamni, Yuval Buchnik, Hatice Hasturk, Alpdogan Kantarci, Danielle Stephens, Ervin I Wiess, Yael Houri-Haddad, Fuad A Iraqi
BACKGROUND: High-fat diet (HFD), body weight (BW) gain and impaired glucose tolerance development were associated with alveolar bone loss in susceptible individuals. This report explores the Collaborative Cross (CC) mouse population for studying the impact of genetic background on the comorbidity of alveolar bone change and glucose tolerance following HFD consumption. METHODS: 78 mice from 19 different CC lines were maintained on rodents chow diet (CH) for 8 weeks, and subsequently, transferred to HFD (42% Fat) for an additional 12 weeks...
May 19, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28523756/isolation-of-circulating-tumor-cells-in-pancreatic-cancer-patients-by-immunocytochemical-assay
#19
Jing Yang, Ying Zhou, Bin Zhao
BACKGROUND: The patients diagnosed with pancreatic cancer have the possibilities of getting the cancer again even after resection. The tumor cells identified from blood can be related to different stages of tumor. METHODS: In this study, we used an immunoassay to detect circulating tumor cells in blood and bone marrow samples. About 120 patients' blood and bone marrow samples were used in this study along with controls. The presence of tumor cells was evaluated with different stages of cancer classified by UICC...
May 19, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28523231/association-of-anti-gangliosides-antibodies-and-anti-cmv-antibodies-in-guillain-barr%C3%A3-syndrome
#20
Lijuan Wang, Chunqing Shao, Chunjiao Yang, Xixiong Kang, Guojun Zhang
INTRODUCTION: Numerous types of infection were closely related to GBS, mainly including Campylobacter jejuni, Cytomegalovirus, which may lead to the production of anti-gangliosides antibodies (AGA). Currently, although there are increased studies on the AGA and a few studies of anti-CMV antibodies in GBS, the association between them remains poorly documented. Therefore, our research aims to analyze the correlation of anti-CMV antibodies and AGA in GBS. METHODS: A total of 29 patients with GBS were enrolled in this study...
May 2017: Brain and Behavior
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