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International Journal of Biological Markers

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https://www.readbyqxmd.com/read/28525661/comparison-between-mononucleotide-and-dinucleotide-marker-panels-in-gastric-cancer-with-loss-of-hmlh1-or-hmsh2-expression
#1
Jeong Goo Kim, Soyoung Shin, Joonhong Park
BACKGROUND: DNA mismatch repair deficiency is an important molecular mechanism of genetic instability in gastric cancer, and a high instability at microsatellites is associated with favorable prognosis. We compared mononucleotide and dinucleotide microsatellite instability (MSI) marker panels in 56 paired gastric tumor and normal samples. METHODS: The mononucleotide marker panel (mono panel) consisted of 8 markers: BAT25, BAT26, BAT40, BAT-RII, NR21, NR22, NR24 and NR27...
May 16, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28497457/mitochondrial-dna-copy-number-variation-as-a-potential-predictor-of-renal-cell-carcinoma
#2
Eman T Elsayed, Mohamed M Hashad, Iman E Elgohary
BACKGROUND: Peripheral blood mitochondrial DNA (mtDNA) copy number alteration has been suggested as a risk factor for several types of cancer. The aim of the present study was to assess the role of peripheral blood mtDNA copy number variation as a noninvasive biomarker in the prediction and early detection of renal cell carcinoma (RCC) in a cohort of Egyptian patients. METHODS: Quantitative real-time polymerase chain reaction (qPCR) was used to measure peripheral blood mtDNA copy numbers in 57 patients with newly diagnosed, early-stage localized RCC and 60 age- and sex-matched healthy individuals as a control group...
May 10, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28478638/use-of-a-combination-of-cea-and-tumor-budding-to-identify-high-risk-patients-with-stage-ii-colon-cancer
#3
Changzheng Du, Weicheng Xue, Fangyuan Dou, Yifan Peng, Yunfeng Yao, Jun Zhao, Jin Gu
BACKGROUND: High-risk patients with stage II colon cancer may benefit from adjuvant chemotherapy, but identifying this patient population can be difficult. We assessed the prognosis value for predicting tumor progression in patients with stage II colon cancer, of a panel of 2 biomarkers for colon cancer: tumor budding and preoperative carcinoembryonic antigen (CEA). METHODS: Consecutive patients (N = 134) with stage II colon cancer who underwent curative surgery from 2000 to 2007 were included...
May 5, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28478639/concordance-analysis-between-her2-immunohistochemistry-and-in-situ-hybridization-in-non-small-cell-lung-cancer
#4
Young San Ko, Nae Yu Kim, Jung-Soo Pyo
PURPOSE: This study aimed to elucidate the concordance between human epidermal growth factor receptor 2 (HER2) immunohistochemistry (IHC) and in situ hybridization (ISH) and the diagnostic accuracy of HER2 IHC in non-small cell lung cancer (NSCLC) through a meta-analysis and diagnostic test accuracy review. METHODS: Seven eligible studies and 1,217 patients with NSCLC were included in the review. The concordance between HER2 IHC and ISH was analyzed. To confirm the diagnostic accuracy of HER2 IHC, the sensitivity and specificity were analyzed and the area under the curve (AUC) in the summary receiver operating characteristic (SROC) curve was calculated...
April 28, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28478637/effects-of-fecal-sampling-on-preanalytical-and-analytical-phases-in-quantitative-fecal-immunochemical-tests-for-hemoglobin
#5
Stefano Rapi, Margherita Berardi, Filippo Cellai, Samuele Ciattini, Laura Chelazzi, Agostino Ognibene, Tiziana Rubeca
BACKGROUND: Information on preanalytical variability is mandatory to bring laboratories up to ISO 15189 requirements. Fecal sampling is greatly affected by lack of harmonization in laboratory medicine. The aims of this study were to obtain information on the devices used for fecal sampling and to explore the effect of different amounts of feces on the results from the fecal immunochemical test for hemoglobin (FIT-Hb). METHODS: Four commercial sample collection devices for quantitative FIT-Hb measurements were investigated...
April 28, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28430337/circulating-neuregulin-1-and-galectin-3-can-be-prognostic-markers-in-breast-cancer
#6
Francesca De Iuliis, Gerardo Salerno, Ludovica Taglieri, Rosina Lanza, Patrizia Cardelli, Susanna Scarpa
BACKGROUND: It is important to identify novel plasmatic biomarkers that can contribute to assessing the prognosis and outcome of breast cancer patients. Neuregulin-1 (NRG1) and galectin-3 (Gal-3) are proteins that are involved in breast cancer development and patient survival; therefore, we studied whether the serum concentration of these 2 proteins can be correlated to breast cancer progression. METHODS: Plasmatic NRG1 and Gal-3 were evaluated in 25 healthy controls and 50 breast cancer patients at baseline and at 3 and 6 months after treatment with anthracyclines and taxanes, with or without trastuzumab...
April 18, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28430339/characterization-of-a-rare-nonpathogenic-sequence-variant-c-1905c-t-of-the-dihydropyrimidine-dehydrogenase-gene-dpyd
#7
Raffaele Palmirotta, Domenica Lovero, Erica Silvestris, Claudia Carella, Claudia Felici, Davide Quaresmini, Paola Cafforio, Franco Silvestris
BACKGROUND: In the era of precision medicine, the suitability of fluoropyrimidine therapies in clinical oncology can be checked by pharmacogenetic investigations of single patients, thus optimizing resources and indicating the appropriate drugs to personalize their chemotherapy. For example, the presence of dihydropyrimidine dehydrogenase gene (DPYD) polymorphisms in cancer patients may lead to adverse effects when adopting fluoropyrimidine-based therapies. METHODS: We detected in a cancer patient a rare germline synonymous heterozygous variant of DPYD (c...
April 11, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28430338/yap-taz-and-areg-expression-in-eighth-cranial-nerve-schwannoma
#8
Alessandro Martini, Gino Marioni, Elisabetta Zanoletti, Rocco Cappellesso, Roberto Stramare, Elena Fasanaro, Chiara Faccioli, Luciano Giacomelli, Luca Denaro, Domenico D'Avella, Antonio Mazzoni, Ambrogio Fassina
BACKGROUND: Although the diagnosis and treatment of eighth cranial nerve (VIII CN) schwannoma (acoustic neuroma) has improved over the years, no factors capable of predicting tumor growth have been identified as yet. This study is a preliminary investigation of the expression in sporadic VIII CN schwannomas of Yes-associated protein (YAP), transcriptional coactivator with PDZ-binding motif (TAZ), and amphiregulin (AREG), a direct target gene of YAP and TAZ. The expression of YAP, TAZ and AREG was correlated with the volumetric dimensions of tumors on contrast-enhanced magnetic resonance imaging (ceMRI)...
April 7, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28315507/polymorphisms-and-mutations-in-gstp1-rad51-xrcc1-and-xrcc3-genes-in-breast-cancer-patients
#9
Mazhar Salim Al Zoubi, Katia Zavaglia, Chiara Mazanti, Mohammad Al Hamad, Khalid Al Batayneh, Alaa A A Aljabali, Generoso Bevilacqua
BACKGROUND: Genotoxic factors, including ionizing radiation and oxidative stress, are associated with genomic instability and development of breast cancer (BC). The homologous recombination DNA repair (HRR) pathway, base excision repair (BER) mechanism, and antioxidative enzymes are required as defense mechanisms against these DNA damaging agents. GSTP1, XRCC1, XRCC3 and RAD51 proteins are essential components of antioxidation, BER and HRR of DNA, respectively. Deficiencies in BER, HRR and antioxidation pathways are involved in the progression of cancer...
March 6, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28315508/tumor-markers-in-pancreatic-cystic-fluids-for-diagnosis-of-malignant-cysts
#10
Alexandre Levy, Theodora Popovici, Phuong-Nhi Bories
BACKGROUND AND AIM: Early diagnosis of premalignant or malignant pancreatic cysts is essential to improve prognosis. Sampling of pancreatic cyst fluid by fine-needle aspiration during endoscopic ultrasonography (EUS) enables cytopathological examination combined with biochemical analysis. This study aimed to provide an aid based on biological markers for the preoperative management of patients with pancreatic cysts. METHODS: Pancreatic fluids obtained by EUS-guided fine-needle aspiration from 115 patients with cystic lesions were assayed for amylase, lipase, carcinoembryonic antigen (CEA), CA 19-9 and CA 72-4...
March 3, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28255982/circulating-tumor-markers-a-guide-to-their-appropriate-clinical-use-comparative-summary-of-recommendations-from-clinical-practice-guidelines-part-2
#11
Massimo Gion, Chiara Trevisiol, Anne W S Rutjes, Giulia Rainato, Aline S C Fabricio
No abstract text is available yet for this article.
March 2, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28475208/circulating-tumor-markers-a-guide-to-their-appropriate-clinical-use-comparative-summary-of-recommendations-from-clinical-practice-guidelines-part-3
#12
Massimo Gion, Chiara Trevisiol, Anne W S Rutjes, Giulia Rainato, Aline S C Fabricio
No abstract text is available yet for this article.
May 4, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28315505/clinicopathological-and-prognostic-value-of-cd24-expression-in-breast-cancer-a-meta-analysis
#13
Gao Liu, Guo-Xing Liu, Yu Fang, Zhen-Yu Cao, Hui-Hui Du, Jie Fu, Ke Qian
BACKGROUND: A number of studies have been conducted to explore the relationship between CD24 expression and the prognosis of breast cancer; however, the results remain inconsistent. Therefore, we performed this meta-analysis to clarify the impact of CD24 expression on clinicopathological features and prognosis of breast cancer. METHODS: A comprehensive literature search for relevant studies was performed, and statistical analysis was conducted using Stata software...
May 4, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28106228/expression-of-long-non-coding-rna-pandar-and-its-prognostic-value-in-colorectal-cancer-patients
#14
Xiangke Li, Feng Wang, Yan Sun, Qingxia Fan, Guangfei Cui
BACKGROUND: Long noncoding RNAs (lncRNAs) are emerging as key molecules in human cancer. In the present study, we explored the role of the lncRNA PANDAR in colorectal cancer (CRC). METHODS: The relative expression level of lncRNA PANDAR in CRC tissues and cell lines was determined by quantitative real-time polymerase chain reaction (qRT-PCR). The associations between PANDAR expression and clinicopathological features of CRC patients were further analyzed. Kaplan-Meier survival analysis was performed to evaluate the value of PANDAR in the prognosis of CRC patients...
May 4, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28085175/cathepsin-k-expression-in-castration-resistant-prostate-carcinoma-a-therapeutical-target-for-patients-at-risk-for-bone-metastases
#15
Enrico Munari, Luca Cima, Francesco Massari, Francesco Bertoldo, Antonio Benito Porcaro, Anna Caliò, Giulio Riva, Elisa Ciocchetta, Chiara Ciccarese, Alessandra Modena, Roberto Iacovelli, Teodoro Sava, Albino Eccher, Claudio Ghimenton, Giampaolo Tortora, Walter Artibani, Giovanni Novella, Giuseppe Bogina, Giuseppe Zamboni, Francesca Sanguedolce, Alessandro D'Amuri, Guido Martignoni, Matteo Brunelli
BACKGROUND: The lysosomal cysteine protease cathepsin K is involved in bone remodeling and is also expressed in the peritumoral stroma of carcinomas arising from different organs. A new generation of cathepsin K inhibitors blocking the RANKL/RANK pathway are being developed. We sought to investigate cathepsin K expression in a cohort of castration-resistant prostate carcinomas. METHODS: Sixteen cases of castration-resistant disease with at least 5 years of follow-up were selected from a cohort of 280 patients who underwent surgery...
May 4, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28058701/correlation-between-chromosome-9p21-locus-deletion-and-prognosis-in-clinically-localized-prostate-cancer
#16
Érika Aparecida Felix de Barros, José Pontes-Junior, Sabrina Thalita Reis, Amanda Eunice Ramos Lima, Isida C Souza, Jose Lucas Salgueiro, Douglas Fontes, Humberto Dellê, Rafael Ferreira Coelho, Nayara Izabel Viana, Kátia Ramos Moreira Leite, William C Nahas, Miguel Srougi
BACKGROUND: Some studies have reported that deletions at chromosome arm 9p occur frequently and represent a critical step in carcinogenesis of some neoplasms. Our aim was to evaluate the deletion of locus 9p21 and chromosomes 3, 7 and 17 in localized prostate cancer (PC) and correlate these alterations with prognostic factors and biochemical recurrence after surgery. METHODS: We retrospectively evaluated surgical specimens from 111 patients with localized PC who underwent radical prostatectomy...
May 4, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28058700/xrcc1-arg399gln-gene-polymorphism-and-hepatocellular-carcinoma-risk-in-the-italian-population
#17
Concetta Santonocito, Margherita Scapaticci, Bojan Nedovic, Eleonora B Annicchiarico, Donatella Guarino, Emanuele Leoncini, Stefania Boccia, Antonio Gasbarrini, Ettore Capoluongo
BACKGROUND: The human X-ray repair cross-complementing protein 1 (XRCC1) gene encodes for one of the major repair factors involved in base excision repair (BER), which is reported to be associated with the risk of several cancers. A few studies have explored the association between risk of hepatocellular carcinoma (HCC) and single-nucleotide polymorphisms (SNPs) in different DNA repair genes, with contradictory results. The purpose of this study was to evaluate the association between XRCC1 Arg399Gln polymorphism and susceptibility to HCC...
May 4, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28009434/gene-polymorphisms-of-tlr2-and-tlr3-in-hbv-clearance-and-hbv-related-hepatocellular-carcinoma-in-a-chinese-male-population
#18
Dongni Chen, Weimin Xie, Yongkui Lu, Shining Su, Li Nong, Yuxian Jia, Yan Liu, Wenxian Zhou, Hongxue Wang, Aihua Tan
BACKGROUND: The Toll-like receptor plays an essential role in controlling immunity and inflammation. This study was to investigate the relationships of genetic variants in TLR2 and TLR3 with hepatitis B virus (HBV) natural clearance and HBV-related hepatocellular carcinoma (HCC) risk in a Chinese male population. METHODS: We analyzed 5 polymorphisms of TLR2 (rs3804099 and rs3804100) and TLR3 (rs5743305, rs3775296 and rs3775291) in a population consisting of 686 participants with HBV natural clearance, 293 chronic HBV carriers and 395 HBV-positive HCC patients, using the improved multiplex ligase detection reaction method...
May 4, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28009432/genetic-polymorphisms-of-vitamin-d-receptor-vdr-cyp27b1-and-cyp24a1-genes-and-the-risk-of-colorectal-cancer
#19
Verônica Marques Vidigal, Tiago Donizetti Silva, Juliana de Oliveira, Célia Aparecida Marques Pimenta, Aledson Vitor Felipe, Nora Manoukian Forones
INTRODUCTION: Vitamin D receptor (VDR) and proteins encoded by the genes CYP27B2 and CYP24A1 involved in the production and inactivation of vitamin D can influence vitamin D and the susceptibility to colorectal cancer (CRC). The objective of this study was to investigate the relationship between the risk of CRC and polymorphisms in VDR, CYP27B1 and CYP24A1, lifestyle and dietary habits. METHODS: The study included 152 patients with CRC and 321 controls. All participants answered a questionnaire on their dietary habits, alcohol consumption and smoking habits...
May 4, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/27834463/gene-expression-profile-of-renal-cell-carcinomas-after-neoadjuvant-treatment-with-sunitinib-new-pathways-revealed
#20
Carlos Dzik, Sabrina T Reis, Nayara I Viana, Glauber Brito, Isis Paloppi, Willian Nahas, Miguel Srougi, Katia R M Leite
BACKGROUND: In renal cell carcinoma (RCC) of the clear cell type, inactivity of the VHL gene induces overexpression of HIF1 α and its targets, the tyrosine kinase receptors, promoting RCC development and progression. The discovery of tyrosine kinase inhibitors (TKIs) changed the treatment of these tumors. Other molecular pathways involved in the TKI mechanisms of action have not been described in the literature. The aim of our study was to elucidate alternative mechanisms of action of sunitinib in tumor tissue after neoadjuvant treatment of RCC...
May 4, 2017: International Journal of Biological Markers
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