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Biomarker appendicitis

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https://www.readbyqxmd.com/read/29569681/can-serum-soluble-urokinase-plasminogen-activator-receptor-be-an-effective-marker-in-the-diagnosis-of-appendicitis-and-differentiation-of-complicated-cases
#1
Melih Akın, Başak Erginel, Nihat Sever, Kerem Özel, Banu Bayraktar, Abdullah Yıldız, Çetin Ali Karadağ, Meltem Tokel, Ali İhsan Dokucu
BACKGROUND: Soluble urokinase plasminogen activator receptor (suPAR) is a new biomarker of inflammation level. The aim of the study was to evaluate whether suPAR levels could be useful to detect acute appendicitis and to differentiate uncomplicated appendicitis (UA) from complicated appendicitis (CA). METHODS: We prospectively studied 105 patients consisting of 40 UA cases, 40 CA cases, and 25 control patients. Blood samples were collected to measure suPAR level, C-reactive protein level, leukocyte counts, neutrophil counts, and neutrophil percentages preoperatively...
March 2018: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29529041/metabolomic-and-inflammatory-mediator-based-biomarker-profiling-as-a-potential-novel-method-to-aid-pediatric-appendicitis-identification
#2
Nusrat S Shommu, Craig N Jenne, Jaime Blackwood, Ari R Joffe, Dori-Ann Martin, Graham C Thompson, Hans J Vogel
Various limitations hinder the timely and accurate diagnosis of appendicitis in pediatric patients. The present study aims to investigate the potential of metabolomics and cytokine profiling for improving the diagnosis of pediatric appendicitis. Serum and plasma samples were collected from pediatric patients for metabolic and inflammatory mediator analyses respectively. Targeted metabolic profiling was performed using Proton Nuclear Magnetic Resonance Spectroscopy and Flow Injection Analysis Mass Spectrometry/Mass Spectrometry and targeted cytokine/chemokine profiling was completed using a multiplex platform to compare children with and without appendicitis...
2018: PloS One
https://www.readbyqxmd.com/read/29511263/the-use-of-metabolomics-and-inflammatory-mediator-profiling-provides-a-novel-approach-to-identifying-pediatric-appendicitis-in-the-emergency-department
#3
Nusrat S Shommu, Craig N Jenne, Jaime Blackwood, Dori-Ann Martin, Ari R Joffe, Robin Eccles, Mary Brindle, Ijab Khanafer, Hans J Vogel, Graham C Thompson
Multiplexed profiling approaches including various 'omics' platforms are becoming a new standard of biomarker development for disease diagnosis and prognosis. The present study applied an integrated metabolomics and cytokine profiling approach as a potential aid to the identification of pediatric appendicitis. Metabolic analysis using serum (n = 121) and urine (n = 102) samples, and cytokine analysis using plasma (n = 121) samples from children presenting to the Emergency Department with abdominal pain were performed...
March 6, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29465563/non-hodgkin-lymphoma-diagnostic-and-prognostic-particularities-in-children-a-series-of-case-reports-and-a-review-of-the-literature-care-compliant
#4
REVIEW
Cristina Oana Mărginean, Lorena Elena Meliţ, Emoke Horvath, Horea Gozar, Mihaela Ioana Chinceşan
RATIONALE: Non-Hodgkin lymphoma remains an unpredictable condition in pediatric patients. PATIENT CONCERNS: Our first case describes an 8-year-old boy with a history of iron deficiency anemia, admitted in our clinic for recurrent abdominal pain, weight loss, loss of appetite, diarrheic stools, and fever. The second case also describes an 8-year-old boy admitted for abdominal pain and vomiting. The 3rd case refers to a 4 years and 10 months old boy admitted in our clinic with abdominal pain and loss of appetite, who was initially admitted in the Pediatrics Surgery Clinic with the suspicion of appendicitis...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29411611/triethanolamine-modified-gold-nanoparticles-synthesized-by-a-one-pot-method-and-their-application-in-electrochemiluminescent-immunoassy
#5
Xiaoli Qin, Chaoyue Gu, Minghan Wang, Yifan Dong, Xin Nie, Meixian Li, Zhiwei Zhu, Di Yang, Yuanhua Shao
In many electrochemiluminescent (ECL) systems, coreactants play crucial roles in the redox-induced light emission process at the electrode surface. In this work, a novel and environment-friendly nanoplatform for ECL immunosensing enabled by triethanolamine (TEOA)-modified gold nanoparticles (TEOA@AuNPs) is reported. The monodisperse TEOA@AuNPs are fabricated by one-pot synthesis using TEOA as both reducing and stabilizing agent. Then the TEOA@AuNPs-modified electrode not only acted as coreactant for Ru(bpy)32+ ECL system but also provided a carrier for antibody 1 to form label-free immunosensor through an interaction between antigen and antibody...
February 7, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29324635/diagnostic-value-of-serum-urokinase-type-plasminogen-activator-receptor-in-children-with-acute-appendicitis
#6
Mustafa Onur Oztan, Aysegul Aksoy Gokmen, Fatma Demet Arslan, Ebru Cakir, Ali Sayan, Elif Abay, Selçuk Kaya, Gokhan Koyluoglu
OBJECTIVES: Acute appendicitis (AA) is the most common surgical emergency in children. The accurate and timely diagnosis of AA in children can be challenging, and delayed diagnosis rates have been reported to range from 5.9% to 27.6%. Although combining clinical history and repeated physical examination with laboratory tests and radiographic imaging modalities help reach the diagnosis, novel biomarkers can support the surgeons' decision as well. The aims of this study were to evaluate a new plasma marker, urokinase-type plasminogen activator receptor (uPAR), to improve diagnostic accuracy in AA patients, and to determine a cutoff value of uPAR, which can safely include/exclude the diagnosis of AA...
January 11, 2018: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29135899/new-oxidative-stress-markers-useful-in-the-diagnosis-of-acute-appendicitis-in-children-thiol-disulfide-homeostasis-and-the-asymmetric-dimethylarginine-level
#7
Bahri Elmas, Turan Yildiz, Hayrullah Yazar, Zekeriya İlçe, Ceylan Bal, Betül Özbek, Yusuf Yürümez
OBJECTIVES: The aim of this study was to evaluate 2 new oxidative stress markers, thiol/disulfide homeostasis status and the asymmetric dimethylarginine (ADMA) level, in children with acute appendicitis (AA) and to evaluate their diagnostic utility. METHODS: This case-control study included 45 patients with AA and 35 healthy children. Age, sex, white blood cell count, neutrophil-to-lymphocyte ratio, high-sensitivity C-reactive protein (hs-CRP) level, ultrasonographic findings, thiol/disulfide homeostasis parameters (native and total thiol levels, native thiol/total thiol ratios [antioxidant parameters], and disulfide, disulfide/native thiol, and disulfide/total thiol ratios [oxidant parameters]), and the ADMA level were compared between the 2 groups...
November 14, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28951011/biomarkers-to-estimate-the-probability-of-complicated-appendicitis
#8
Meghan C Daly, Daniel von Allmen, Hector R Wong
BACKGROUND: The conventional paradigm that all children with appendicitis require an appendectomy is being challenged by the idea that some patients may be successfully managed non-operatively. The study aimed to determine if matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinase (TIMPs) are candidate biomarkers for estimating the probability of complicated appendicitis in pediatric patients. METHODS: The study was a single-institution, prospective cohort study...
September 9, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28744697/prospective-validation-of-neutrophil-to-lymphocyte-ratio-as-a-diagnostic-and-management-adjunct-in-acute-appendicitis
#9
A Khan, M Riaz, Michael E Kelly, W Khan, R Waldron, K Barry, I Z Khan
BACKGROUND: No optimal biomarker exists that accurately diagnoses appendicitis or predicts severity, estimates post-operative complications or total length of hospital stay (LOS). AIM: To prospectively validate the utility of neutrophil-to-lymphocyte (NLR) ratio in predicting the severity of appendicitis, LOS, and 30-day complication rates. METHODS: Patients who were admitted with a provisional diagnosis of acute appendicitis over a period of 18 months (Oct 2014-April 2016) were included...
July 25, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28635513/evaluation-of-platelet-indices-and-red-cell-distribution-width-as-new-biomarkers-for-the-diagnosis-of-acute-appendicitis
#10
Noha Boshnak, Mohamed Boshnaq, Hatem Elgohary
BACKGROUND: Debate around the value of laboratory tests in establishing the diagnosis of acute appendicitis (AA) still continues. This prospective study aimed to investigate the changes in mean platelet volume (MPV), platelet distribution width (PDW), and red cell distribution width (RDW) with the diagnosis of acute appendicitis. METHOD: 200 patients who underwent emergency appendectomy were included. According to postoperative histology, patients were divided into three groups: acute non-complicated, acute complicated appendicitis (positive appendicectomy groups), and negative appendectomy group...
February 16, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28624043/composition-of-the-cellular-infiltrate-in-patients-with-simple-and-complex-appendicitis
#11
Ramon R Gorter, Emma C E Wassenaar, Onno J de Boer, Roel Bakx, Joris J T H Roelofs, Madeleine J Bunders, L W Ernst van Heurn, Hugo A Heij
BACKGROUND: It is now well established that there are two types of appendicitis: simple (nonperforating) and complex (perforating). This study evaluates differences in the composition of the immune cellular infiltrate in children with simple and complex appendicitis. MATERIALS AND METHODS: A total of 47 consecutive children undergoing appendectomy for acute appendicitis between January 2011 and December 2012 were included. Intraoperative criteria were used to identify patients with either simple or complex appendicitis and were confirmed histopathologically...
June 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28607552/procalcitonin-guided-antibiotics-after-surgery-for-peritonitis-a-randomized-controlled-study
#12
Juliette C Slieker, Steve Aellen, Philippe Eggimann, Valentine Guarnero, Markus Schäfer, Nicolas Demartines
BACKGROUND: Serum procalcitonin (PCT) is a useful biomarker to tailor the duration of antibiotics in respiratory infections. The objective of this study was to determine whether PCT levels could tailor postoperative antibiotic therapy in patients operated for peritonitis. METHOD: Patients with peritonitis were randomized postoperatively. The control group received antibiotics for a defined duration according to institutional guidelines. In the study group, antibiotics were stopped based on serum PCT levels...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/28456849/can-common-serum-biomarkers-predict-complicated-appendicitis-in-children
#13
MULTICENTER STUDY
Augusto Zani, Warwick J Teague, Simon A Clarke, Munther J Haddad, Sanjeev Khurana, Thomas Tsang, Ramesh M Nataraja
PURPOSE: As appendicitis in children can be managed differently according to the severity of the disease, we investigated whether commonly used serum biomarkers on admission could distinguish between simple and complicated appendicitis. METHODS: Admission white blood cell (WBC), neutrophil (NEU), and C-reactive protein (CRP) levels were analysed by ROC curve, and Kruskal-Wallis and contingency tests. Patients were divided according to age and histology [normal appendix (NA), simple appendicitis (SA), complicated appendicitis (CA)]...
July 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28271679/the-diagnostic-value-of-scube1-in-acute-appendicitis
#14
E Sonmez, A Dursun, B Gulen, H Metin, O F Ozer
BACKGROUND: SCUBE1 has recently been studied as a diagnostic biomarker for acute coronary syndrome, ischemic stroke, and acute mesenteric ischemia. The aim of this study is to evaluate the value of SCUBE1 and routine parameters used in patients diagnosed with acute appendicitis. METHODS: Of the 150 patients admitted to the emergency department whose initial diagnosis were acute appendicitis (AA), 103 patients were excluded from the study for various reasons. Forty-seven patients with a definitive diagnose of AA and 43 volunteers were enrolled in the study...
March 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28256555/selection-characterization-and-application-of-artificial-dna-aptamer-containing-appended-bases-with-sub-nanomolar-affinity-for-a-salivary-biomarker
#15
Hirotaka Minagawa, Kentaro Onodera, Hiroto Fujita, Taiichi Sakamoto, Joe Akitomi, Naoto Kaneko, Ikuo Shiratori, Masayasu Kuwahara, Katsunori Horii, Iwao Waga
We have attained a chemically modified DNA aptamer against salivary α-amylase (sAA), which attracts researchers' attention as a useful biomarker for assessing human psychobiological and social behavioural processes, although high affinity aptamers have not been isolated from a random natural DNA library to date. For the selection, we used the base-appended base (BAB) modification, that is, a modified-base DNA library containing (E)-5-(2-(N-(2-(N6-adeninyl)ethyl))carbamylvinyl)-uracil in place of thymine. After eight rounds of selection, a 75 mer aptamer, AMYm1, which binds to sAA with extremely high affinity (Kd < 1 nM), was isolated...
March 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28125214/preassembled-fluorescent-multivalent-probes-for-the-imaging-of-anionic-membranes
#16
Felicia M Roland, Evan M Peck, Douglas R Rice, Bradley D Smith
A new self-assembly process known as Synthavidin (synthetic avidin) technology was used to prepare targeted probes for near-infrared fluorescence imaging of anionic membranes and cell surfaces, a hallmark of many different types of disease. The probes were preassembled by threading a tetralactam macrocycle with six appended zinc-dipicolylamine (ZnDPA) targeting units onto a linear scaffold with one or two squaraine docking stations to produce hexavalent or dodecavalent fluorescent probes. A series of liposome titration experiments showed that multivalency promoted stronger membrane binding by the dodecavalent probe...
April 19, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/27922766/diagnostic-value-of-high-mobility-group-box-1-hmgb1-protein-in-acute-and-perforated-appendicitis
#17
Shabanali Alizadeh, Ali Ghazavi, Ali Ganji, Ghasem Mosayebi
AIM: Acute appendicitis is the most common cause of abdominal surgical emergencies. Early diagnosis of appendicitis can reduce perforation and mortality rate. High-mobility group box 1 (HMGB1) protein has been identified as a pro-inflammatory factor and its elevated serum levels have been noted in different diseases. So, the aim of this study was to determine the serum levels of HMGB1 in patients with acute and perforated appendicitis in compare to normal appendix. MATERIAL AND METHODS: For this purpose, serum samples were obtained from 81 patients with primary criteria-based appendicitis 6 hr before and 72 hr after appendectomy, in which serum levels of HMGB1 were analyzed by enzyme-linked immunosorbent assay...
February 2018: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/27876541/diagnostic-performance-of-a-biomarker-panel-as-a-negative-predictor-for-acute-appendicitis-in-adult-ed-patients-with-abdominal-pain
#18
David S Huckins, Karen Copeland, Wesley Self, Cheryl Vance, Phyllis Hendry, Keith Borg, Joseph Gogain
OBJECTIVES: Evaluate the diagnostic accuracy of the APPY1TM biomarker panel, previously described for use in pediatric patients, for identifying adult ED patients with abdominal pain who are at low risk of acute appendicitis. METHODS: This study prospectively enrolled subjects >18years of age presenting to seven U.S. emergency departments with <72hours of abdominal pain suggesting possible acute appendicitis. The APPY1 panel was performed on blood samples drawn from each patient at the time of initial evaluation and results were correlated with the final diagnosis either positive or negative for acute appendicitis...
March 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27769665/ischemia-modified-albumin-as-a-predictor-of-the-severity-of-acute-appendicitis
#19
Murat Özgür Kılıç, Cem Emir Güldoğan, İlhan Balamir, Mesut Tez
BACKGROUND: The early prediction of gangrenous/perforated appendicitis is of great importance for the surgical planning, further treatments, and predicting the course of disease. Ischemia-modified albumin (IMA) was previously reported as a biomarker of various ischemia-based diseases. Our aim is to determine the predictive value of serum IMA in the severity of acute appendicitis. METHODS: Sixty-two patients who underwent urgent appendectomy were included in the study...
January 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27760719/diagnostic-accuracy-of-fibrinogen-to-differentiate-appendicitis-from-nonspecific-abdominal-pain-in-children
#20
Marcos Prada-Arias, José Luis Vázquez, Ángel Salgado-Barreira, Javier Gómez-Veiras, Margarita Montero-Sánchez, José Ramón Fernández-Lorenzo
AIM: The aim of this study was to assess the diagnostic accuracy of the biomarker fibrinogen (FB), along with the more traditional markers white blood cell count (WBC), absolute neutrophil count (ANC), and C-reactive protein (CRP), to discriminate appendicitis from nonspecific abdominal pain (NSAP) in children. METHODS: We prospectively evaluated all children aged 5 to 15 years admitted for suspected appendicitis at an academic pediatric emergency department during 2 years...
January 2017: American Journal of Emergency Medicine
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