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https://www.readbyqxmd.com/read/29151140/effects-of-oxygen-availability-on-oxidative-stress-biomarkers-in-the-mediterranean-mussel-mytilus-galloprovincialis
#1
Alessia Giannetto, Maria Maisano, Tiziana Cappello, Sabrina Oliva, Vincenzo Parrino, Antonino Natalotto, Giuseppe De Marco, Salvatore Fasulo
In aquatic environments, hypoxia and oxygen-deficient areas are increasing worldwide. Transitions in oxygen levels can influence the production of reactive oxygen species (ROS), eventually leading to oxidative stress. The transcriptional response of oxidative stress biomarkers was evaluated by qPCR in gill tissue from Mytilus galloprovincialis experimentally subjected to 48-h air exposure followed by 48-h re-oxygenation, as compared to normoxic control mussels. Superoxide dismutases (CuZnsod and Mnsod), catalase (cat), and glutathione S-transferase (gst) were over-expressed early after 8-h air exposure and returned to normoxic levels during re-oxygenation...
November 18, 2017: Marine Biotechnology
https://www.readbyqxmd.com/read/29150948/methylation-associated-dok1-and-dok2-down-regulation-potential-biomarkers-for-predicting-adverse-prognosis-in-acute-myeloid-leukemia
#2
Pin-Fang He, Zi-Jun Xu, Jing-Dong Zhou, Xi-Xi Li, Wei Zhang, De-Hong Wu, Zhi-Hui Zhang, Xin-Yue Lian, Xin-Yu Yao, Zhao-Qun Deng, Jiang Lin, Jun Qian
DOK-1 and DOK-2 (DOK1/2) are closely related members of downstream of tyrosine kinase (DOK) family genes, which are found to be frequently rearranged in several hematopoietic cancers. However, the clinical implications of DOK1/2 in acute myeloid leukemia (AML) remain largely unknown. To investigate the clinical significance, real-time quantitative PCR (RQ-PCR) was carried out to detect DOK1/2 expressions in 125 de novo AML patients and 28 healthy controls. Real-time quantitative methylation-specific PCR (RQ-MSP) and bisulfite sequencing PCR (BSP) were applied to detect DOK1/2 methylation level and density...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150941/micrornas-as-predictive-biomarkers-for-myocardial-injury-in-aged-mice-following-myocardial-infarction
#3
Natia Qipshidze Kelm, Kellianne M Piell, Eugenia Wang, Marsha P Cole
The occurrence of myocardial infarction (MI) increases appreciably with age. In the Framingham Heart Study, the incidence of MI more than doubles for men and increases more than 5-fold in women (ages 55 to 64 years compared to 85 to 94 years). MicroRNAs (miRNAs) quantitatively regulate their target's expression post-transcriptionally by either silencing action through binding at the 3'UTR domains or degrading the messages at their coding regions. In either case, these regulations affect the cardiac transcriptional output and cardiac function...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150759/from-experiment-to-theory-what-can-we-learn-from-growth-curves
#4
Irina Kareva, Georgy Karev
Finding an appropriate functional form to describe population growth based on key properties of a described system allows making justified predictions about future population development. This information can be of vital importance in all areas of research, ranging from cell growth to global demography. Here, we use this connection between theory and observation to pose the following question: what can we infer about intrinsic properties of a population (i.e., degree of heterogeneity, or dependence on external resources) based on which growth function best fits its growth dynamics? We investigate several nonstandard classes of multi-phase growth curves that capture different stages of population growth; these models include hyperbolic-exponential, exponential-linear, exponential-linear-saturation growth patterns...
November 17, 2017: Bulletin of Mathematical Biology
https://www.readbyqxmd.com/read/29150490/gut-roundtable-meeting-paper-selected-recent-advances-in-hepatocellular-carcinoma
#5
REVIEW
Alexander Gerbes, Fabien Zoulim, Herbert Tilg, Jean-François Dufour, Jordi Bruix, Valérie Paradis, Riad Salem, Markus Peck-Radosavljevic, Peter R Galle, Tim F Greten, Jean-Charles Nault, Matias A Avila
Hepatocellular carcinoma (HCC) ranks number three among the most frequent causes of death from solid tumors worldwide. With obesity and fatty liver diseases as risk factors on the rise, HCC represents an ever increasing challenge. While there is still no curative treatment for most patients numerous novel drugs have been proposed, but most ultimately failed in phase III trials. This manuscript targets therapeutic advances and most burning issues. Expert key point summaries and urgent research agenda are provided regarding risk factors, including microbiota, need for prognostic and predictive biomarkers and the equivocal role of liver biopsy...
November 17, 2017: Gut
https://www.readbyqxmd.com/read/29150411/an-epithelial-biomarker-signature-for-idiopathic-pulmonary-fibrosis-an-analysis-from-the-multicentre-profile-cohort-study
#6
Toby M Maher, Eunice Oballa, Juliet K Simpson, Joanne Porte, Anthony Habgood, William A Fahy, Aiden Flynn, Philip L Molyneaux, Rebecca Braybrooke, Hrushikesh Divyateja, Helen Parfrey, Doris Rassl, Anne-Marie Russell, Gauri Saini, Elisabetta A Renzoni, Anne-Marie Duggan, Richard Hubbard, Athol U Wells, Pauline T Lukey, Richard P Marshall, R Gisli Jenkins
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a progressive, fatal disorder with a variable disease trajectory. The aim of this study was to assess potential biomarkers to predict outcomes for people with IPF. METHOD: PROFILE is a large prospective longitudinal cohort of treatment-naive patients with IPF. We adopted a two-stage discovery and validation design using patients from the PROFILE cohort. For the discovery analysis, we examined 106 patients and 50 age and sex matched healthy controls from Nottingham University Hospitals NHS Trust and the Royal Brompton Hospital...
November 14, 2017: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/29150145/neuroimaging-biomarkers-as-predictors-of-treatment-outcome-in-major-depressive-disorder
#7
REVIEW
Trehani M Fonseka, Glenda M MacQueen, Sidney H Kennedy
BACKGROUND: Current practice for selecting pharmacological and non-pharmacological antidepressant treatments has yielded low response and remission rates in Major Depressive Disorder (MDD). Neuroimaging biomarkers of brain structure and function may be useful in guiding treatment selection by predicting response vs. non-response outcomes. METHODS: In this review, we summarize data from studies examining predictors of treatment response using structural and functional neuroimaging modalities, as they pertain to pharmacotherapy, psychotherapy, and stimulation treatment strategies...
October 31, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29150024/decreased-uchl1-expression-as-a-cytologic-biomarker-for-aggressive-behavior-in-pancreatic-neuroendocrine-tumors
#8
Maureen D Moore, Brendan Finnerty, Katherine D Gray, Rana Hoda, Yi-Fan Liu, Lauren Soong, Toni Beninato, Rema Rao, Rasa Zarnegar, Thomas J Fahey
BACKGROUND: There are currently no reliable markers associated with aggressive behavior in well-differentiated and moderately differentiated pancreatic neuroendocrine tumors. We aimed to determine whether expression of ubiquitin carboxyl-terminal hydrolase L1 in conjunction with Ki67 can identify metastatic potential of well-differentiated and moderately differentiated pancreatic neuroendocrine tumors from fine-needle aspiration samples obtained by endoscopic ultrasound. METHODS: Retrospective review of 48 patients with well-differentiated and moderately differentiated pancreatic neuroendocrine tumors diagnosed by endoscopic ultrasound fine-needle aspiration at a single center identified 35 biopsy samples with adequate material for analysis...
November 14, 2017: Surgery
https://www.readbyqxmd.com/read/29149959/urinary-tissue-inhibitor-of-metalloproteinase-and-insulin-like-growth-factor-7-as-early-biomarkers-of-delayed-graft-function-after-kidney-transplantation
#9
J Yang, S Y Lim, M-G Kim, C-W Jung, W-Y Cho, S-K Jo
BACKGROUND: Recently, urinary tissue inhibitor of metalloproteinase-2 (TIMP-2) and insulin-like growth factor-7 (IGFBP-7), markers for G1 cell cycle arrest, have been identified and validated in predicting the development of acute kidney injury in critically ill patients. It is unknown, however, whether these two biomarkers could predict the development of delayed graft function (DGF) after kidney transplantation (KT). METHODS: This is a single-center, prospective, observational study...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149935/biomarkers-in-sepsis
#10
REVIEW
Tjitske S R van Engelen, Willem Joost Wiersinga, Brendon P Scicluna, Tom van der Poll
A biomarker is a characteristic by which a (patho)physiologic process can be identified. Biomarkers can be of diagnostic value (to discriminate infection from noninfectious conditions or to determine the causative pathogen), of prognostic value (assigning risk profiles and predict outcome), and in the future may be of theranostic value (aid in selection and monitoring of therapy). Systems biology provides a promising tool for the discovery of novel biomarkers. Biomarkers can be the key to personalized targeted treatment in the future clinical management of sepsis...
January 2018: Critical Care Clinics
https://www.readbyqxmd.com/read/29149883/serum-concentrations-of-krebs-von-den-lungen-6-surfactant-protein-d-and-matrix-metalloproteinase-2-as-diagnostic-biomarkers-in-patients-with-asbestosis-and-silicosis-a-case-control-study
#11
Changjiang Xue, Na Wu, Xue Li, Meihua Qiu, Xuqin Du, Qiao Ye
BACKGROUND: Asbestosis and silicosis are progressive pneumoconioses characterized by interstitial fibrosis following exposure to asbestos or silica dust. We evaluated the potential diagnostic biomarkers for these diseases. METHODS: The serum concentrations of Krebs von den Lungen-6 (KL-6), surfactant protein D (SP-D), and matrix metalloproteinase-2 (MMP-2), MMP-7, and MMP-9 were measured in 43 patients with asbestosis, 45 patients with silicosis, 40 dust-exposed workers (DEWs) without pneumoconiosis, and 45 healthy controls (HCs)...
November 17, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29149834/cystatin-c-in-cerebrovascular-disorders
#12
Yaru Zhang, Li Sun
Cystatin C (CysC), a cysteine protease inhibitor, has been widely proven to be a highly sensitive biomarker to predict the kidney function. The similarity of the renal and cerebral small vessels has awakened a surge of studies suggesting that CysC plays a key role in various cerebrovascular disorders. This review focuses on four major mechanisms of CysC in a variety of cerebrovascular diseases. (1)The property of the CysC Leu-68-Gln (L68Q) variant to aggregate and the property of the wild type CysC protein to co-aggregate with Amyloid-β (Aβ); (2)The disruption of equilibrium between CysC and related cysteine proteases; (3)The function of CysC as an inflammatory inducing factor; (4)The ability of CysC to induce autophagy...
November 15, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/29149772/natural-history-of-infantile-onset-spinal-muscular-atrophy
#13
Stephen J Kolb, Christopher S Coffey, Jon W Yankey, Kristin Krosschell, W David Arnold, Seward B Rutkove, Kathryn J Swoboda, Sandra P Reyna, Ai Sakonju, Basil T Darras, Richard Shell, Nancy Kuntz, Diana Castro, Julie Parsons, Anne M Connolly, Claudia A Chiriboga, Craig McDonald, W Bryan Burnette, Klaus Werner, Mathula Thangarajh, Perry B Shieh, Erika Finanger, Merit E Cudkowicz, Michelle M McGovern, D Elizabeth McNeil, Richard Finkel, Susan T Iannaccone, Edward Kaye, Allison Kingsley, Samantha R Renusch, Vicki L McGovern, Xueqian Wang, Phillip G Zaworski, Thomas W Prior, Arthur H M Burghes, Amy Bartlett, John T Kissel
OBJECTIVE: Infantile-onset spinal muscular atrophy (SMA) is the most common genetic cause of infant mortality, typically resulting in death prior to age 2. Clinical trials in this population require an understanding of disease progression and identification of meaningful biomarkers to hasten therapeutic development and predict outcomes. METHODS: A longitudinal, multi-center, prospective natural history study enrolled 26 SMA infants, and 27 control infants less than six months of age...
November 17, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/29149327/focused-time-lapse-analysis-reveals-novel-aspects-of-human-fertilization-and-suggests-new-parameters-of-embryo-viability
#14
G Coticchio, M Mignini Renzini, P V Novara, M Lain, E De Ponti, D Turchi, R Fadini, M Dal Canto
STUDY QUESTION: Can focused application of time-lapse microscopy (TLM) lead to a more detailed map of the morphokinetics of human fertilization, revealing novel or neglected aspects of this process? SUMMARY ANSWER: Intensive harnessing of TLM reveals novel or previously poorly characterised phenomena of fertilization, such as a cytoplasmic wave (CW) preceding pronuclear formation and kinetics of pronuclear chromatin polarization, thereby suggesting novel non-invasive biomarkers of embryo quality...
November 15, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29149219/characterization-and-classification-of-lupus-patients-based-on-plasma-thermograms
#15
Nichola C Garbett, Guy N Brock, Jonathan B Chaires, Chongkham S Mekmaysy, Lynn DeLeeuw, Kathy L Sivils, John B Harley, Brad H Rovin, K B Kulasekera, Wael N Jarjour
OBJECTIVE: Plasma thermograms (thermal stability profiles of blood plasma) are being utilized as a new diagnostic approach for clinical assessment. In this study, we investigated the ability of plasma thermograms to classify systemic lupus erythematosus (SLE) patients versus non SLE controls using a sample of 300 SLE and 300 control subjects from the Lupus Family Registry and Repository. Additionally, we evaluated the heterogeneity of thermograms along age, sex, ethnicity, concurrent health conditions and SLE diagnostic criteria...
2017: PloS One
https://www.readbyqxmd.com/read/29148905/serum-glucose-potassium-ratio-as-a-clinical-risk-factor-for-aneurysmal-subarachnoid-hemorrhage
#16
Yu Fujiki, Fumihiro Matano, Takayuki Mizunari, Yasuo Murai, Kojiro Tateyama, Kenta Koketsu, Asami Kubota, Shiro Kobayashi, Hiroyuki Yokota, Akio Morita
OBJECTIVE Aneurysmal subarachnoid hemorrhage (SAH) can result in poor outcomes, and biomarkers for predicting poor prognosis have not yet been established. The aim of this study was to clarify the significance of the serum glucose/potassium ratio for predicting the prognosis of aneurysmal SAH. METHODS The authors retrospectively reviewed the records of 565 patients with aneurysmal SAH between 2006 and 2016. The patient group comprised 208 men and 357 women (mean age 61.5 years, range 10-95 years). A statistical analysis was conducted of the clinical and laboratory risk factors of poor outcome, including the serum glucose/potassium ratio...
November 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29148041/fscn1-predicts-survival-and-is-regulated-by-a-pi3k-dependent-mechanism-in-renal-cell-carcinoma
#17
Mengping Zhang, Zhijian Zhao, Xiaolu Duan, Ping Chen, Zhenwei Peng, Huijuan Qiu
While overexpression of FSCN1 is reported in several cancers, the prognostic significance of FSCN1 in renal cell carcinoma (RCC) and the molecular mechanisms involved remain largely unclear. We retrospectively enrolled 194 patients with non-metastatic clear-cell RCC undergoing nephrectomy in our center between 2008 and 2011. FSCN1 expression was assessed by immunohistochemical staining and its association with clinicopathologic features and survival were evaluated. Functional effects of a modulated FSCN1 expression were analyzed with regard to invasion in RCC cell lines and metastasis in vivo...
November 17, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29148021/routine-adoption-of-timp2-and-igfbp7-biomarkers-in-cardiac-surgery-for-early-identification-of-acute-kidney-injury
#18
Chiara Levante, Fiorenza Ferrari, Chiara Manenti, Faeq Husain-Syed, Marta Scarpa, Tommaso Hinna Danesi, Massimo De Cal, Valentina Corradi, Grazia M Virzì, Alessandra Brendolan, Federico Nalesso, Pércia Bezerra, Salvador Lopez-Giacoman, Sara Samoni, Mara Senzolo, Davide Giavarina, Loris Salvador, Raffaele Bonato, Silvia De Rosa, Enrico Rettore, Claudio Ronco
BACKGROUND AND PURPOSE: Acute Kidney Injury (AKI) is a severe complication affecting many hospitalized patients after cardiac surgery, with negative impacts on short- and long-term clinical outcomes and on healthcare costs. Recently, clinical interest has been aimed at defining and classifying AKI, identifying risk factors and developing diagnostic strategies to identify patients at risk early on. Achieving an early and accurate diagnosis of AKI is a crucial issue, because prevention and timely detection may help to prevent negative clinical outcomes and avoid AKI-associated costs...
November 16, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/29147913/expression-of-tlr7-tlr9-jak2-and-stat3-genes-in-peripheral-blood-mononuclear-cells-from-patients-with-systemic-sclerosis
#19
Miša Vreća, Ana Zeković, Nemanja Damjanov, Marina Andjelković, Milena Ugrin, Sonja Pavlović, Vesna Spasovski
Systemic sclerosis (SSc) is a rare, chronic, multisystem autoimmune disease clinically characterized by progressive fibrosis of the skin and internal organs. The basic mechanism appears to involve endothelial cell injury, overproduction of extracellular matrix proteins, and aberrant immune activation. So far, there have been a few attempts to find genetic biomarkers for monitoring disease activity or for correlation with certain symptoms. In order to reveal reliable biomarkers, we analyzed the expression of four genes representing three important signaling pathways, TLR7, TLR9, and JAK2-STAT3...
November 16, 2017: Journal of Applied Genetics
https://www.readbyqxmd.com/read/29147629/trial-watch-immune-checkpoint-blockers-for-cancer-therapy
#20
REVIEW
Claire Vanpouille-Box, Claire Lhuillier, Lucillia Bezu, Fernando Aranda, Takahiro Yamazaki, Oliver Kepp, Jitka Fucikova, Radek Spisek, Sandra Demaria, Silvia C Formenti, Laurence Zitvogel, Guido Kroemer, Lorenzo Galluzzi
Immune checkpoint blockers (ICBs) are literally revolutionizing the clinical management of an ever more diversified panel of oncological indications. Although considerable attention persists around the inhibition of cytotoxic T lymphocyte-associated protein 4 (CTLA4) and programmed cell death 1 (PDCD1, best known as PD-1) signaling, several other co-inhibitory T-cell receptors are being evaluated as potential targets for the development of novel ICBs. Moreover, substantial efforts are being devoted to the identification of biomarkers that reliably predict the likelihood of each patient to obtain clinical benefits from ICBs in the absence of severe toxicity...
2017: Oncoimmunology
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