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https://www.readbyqxmd.com/read/29037006/microrna-150-5p-improves-risk-classification-for-mortality-within-90-days-after-acute-ischemic-stroke
#1
Natalie Scherrer, Francois Fays, Beat Mueller, Andreas Luft, Felix Fluri, Mirjam Christ-Crain, Yvan Devaux, Mira Katan
BACKGROUND AND PURPOSE: Micro ribonucleic acid-150-5p (miR-150-5p) regulates proinflammatory cytokines as well as vessel integrity. We evaluated the incremental prognostic value of logarithm (log) of miR-150-5p plasma levels after ischemic stroke. METHODS: In a prospective cohort study, levels of miR-150-5p were measured within 72 hours of symptom onset in 329 ischemic stroke patients. The outcome measures were unfavorable functional outcome (assessed by the modified Rankin Scale score >2) and mortality within 90 days...
September 2017: Journal of Stroke
https://www.readbyqxmd.com/read/29036931/mass-spectrometric-studies-of-apolipoprotein-proteoforms-and-their-role-in-lipid-metabolism-and-type-2-diabetes
#2
REVIEW
Dobrin Nedelkov
Apolipoproteins function as structural components of lipoprotein particles, cofactors for enzymes, and ligands for cell-surface receptors. Most of the apoliporoteins exhibit proteoforms, arising from single nucleotide polymorphisms (SNPs) and post-translational modifications such as glycosylation, oxidation, and sequence truncations. Reviewed here are recent studies correlating apolipoproteins proteoforms with the specific clinical measures of lipid metabolism and cardiometabolic risk. Targeted mass spectrometric immunoassays toward apolipoproteins A-I, A-II, and C-III were applied on large cross-sectional and longitudinal clinical cohorts...
October 15, 2017: Proteomes
https://www.readbyqxmd.com/read/29036928/plasma-mir-155-mir-203-and-mir-205-are-biomarkers-for-monitoring-of-primary-cutaneous-t-cell-lymphomas
#3
Nina Dusílková, Petra Bašová, Jindřich Polívka, Ondřej Kodet, Vojtěch Kulvait, Michal Pešta, Marek Trněný, Tomáš Stopka
Primary cutaneous T-cell lymphomas (CTCL) affect the skin and tend to transform and spread. CTCL involves primarily the Mycosis fungoides (MF) and more aggressive Sezary syndrome (SS). Oncogenic microRNAs (miRs) are stable epigenetic inhibitors often deregulated in the tumour and detectable as biomarkers in non-cellular fractions of peripheral blood. The tumour-specific expression of miR-155, miR-203, and miR-205 was shown to correctly diagnose CTCL. We herein asked whether these microRNAs can be used as plasma biomarkers for clinical CTCL monitoring...
October 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29036902/dna-adducts-formed-by-aristolochic-acid-are-unique-biomarkers-of-exposure-and-explain-the-initiation-phase-of-upper-urothelial-cancer
#4
REVIEW
Marie Stiborová, Volker M Arlt, Heinz H Schmeiser
Aristolochic acid (AA) is a plant alkaloid that causes aristolochic acid nephropathy (AAN) and Balkan endemic nephropathy (BEN), unique renal diseases frequently associated with upper urothelial cancer (UUC). This review summarizes the significance of AA-derived DNA adducts in the aetiology of UUC leading to specific A:T to T:A transversion mutations (mutational signature) in AAN/BEN-associated tumours, which are otherwise rare in individuals with UCC not exposed to AA. Therefore, such DNA damage produced by AA-DNA adducts is one rare example of the direct association of exposure and cancer development (UUC) in humans, confirming that the covalent binding of carcinogens to DNA is causally related to tumourigenesis...
October 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29036887/reference-intervals-for-non-fasting-cvd-lipids-and-inflammation-markers-in-pregnant-indigenous-australian-women
#5
Tracy L Schumacher, Christopher Oldmeadow, Don Clausen, Loretta Weatherall, Lyniece Keogh, Kirsty G Pringle, Kym M Rae
Indigenous Australians experience high rates of cardiovascular disease (CVD). The origins of CVD may commence during pregnancy, yet few serum reference values for CVD biomarkers exist specific to the pregnancy period. The Gomeroi gaaynggal research project is a program that undertakes research and provides some health services to pregnant Indigenous women. Three hundred and ninety-nine non-fasting samples provided by the study participants (206 pregnancies and 175 women) have been used to construct reference intervals for CVD biomarkers during this critical time...
October 14, 2017: Healthcare (Basel, Switzerland)
https://www.readbyqxmd.com/read/29036883/microrna-34a-a-versatile-regulator-of-myriads-of-targets-in-different-cancers
#6
REVIEW
Ammad Ahmad Farooqi, Sobia Tabassum, Aamir Ahmad
MicroRNA-34a (miR-34a) is a tumor suppressor that has attracted considerable attention in recent years. It modulates cancer cell invasion, metastasis, and drug resistance, and has also been evaluated as a diagnostic and/or prognostic biomarker. A number of targets of miR-34a have been identified, including some other non-coding RNAs, and it is believed that the modulation of these myriads of targets underlines the versatile role of miR-34a in cancer progression and pathogenesis. Seemingly appealing results from preclinical studies have advocated the testing of miR-34a in clinical trials...
October 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29036825/the-emergence-of-a-new-conceptual-framework-for-alzheimer-s-disease
#7
Dubois Bruno
The New Criteria for the diagnosis of Alzheimer's disease (AD), published by a group of experts in 2007, have resulted in a revolution in the comprehension of the disease. Before 2007, the diagnosis of AD dementia was done through a process of exclusion: it was considered in the case of patients with a dementia syndrome without identified etiologies. This traditional algorithm had three major limitations that penalize the disease: 1) a low accuracy of the performance which may share responsibility for negative results in clinical trials; 2) a late identification of the patients only when they reach the threshold of dementia which may delay the activation of optimal care; and last but not least, 3) an absence of clear recognition of AD as a disease because of the lack of specific arguments for its identification...
October 7, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29036824/alzheimer-s-disease-biomarkers-and-future-decline-in-cognitive-normal-older-adults
#8
Julien Dumurgier, Bernard J Hanseeuw, Frances B Hatling, Kelly A Judge, Aaron P Schultz, Jasmeer P Chhatwal, Deborah Blacker, Reisa A Sperling, Keith A Johnson, Bradley T Hyman, Teresa Gómez-Isla
BACKGROUND: Identifying older adults at risk of cognitive decline represents a challenge as Alzheimer's disease (AD) modifying therapies move toward preclinical stages. OBJECTIVE: To investigate the relationship between AD biomarkers and subsequent change in cognition in a cohort of cognitively intact older adults. METHODS: 84 cognitively normal subjects (mean age 72.0 years, 59% women) were recruited through the Massachusetts Alzheimer's Disease Research Center and the Harvard Aging Brain Study and followed over 3 years...
October 12, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29036819/age-and-graphomotor-decision-making-assessed-with-the-digital-clock-drawing-test-the-framingham-heart-study
#9
Ryan J Piers, Kathryn N Devlin, Boting Ning, Yulin Liu, Ben Wasserman, Joseph M Massaro, Melissa Lamar, Catherine C Price, Rod Swenson, Randall Davis, Dana L Penney, Rhoda Au, David J Libon
BACKGROUND: Digital Clock Drawing Test (dCDT) technology enables the examination of detailed neurocognitive behavior as behavior unfolds in in real time; a capability that cannot be obtained using a traditional pen and paper testing format. OBJECTIVE: Parameters obtained from the dCDT were used to investigate neurocognitive constructs related to higher-order neurocognitive decision-making and information processing speed. The current research sought to determine the effect of age as related to combined motor and non-motor components of drawing, and higher-order, decision-making latencies...
October 8, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29036818/a-9-microrna-signature-in-serum-serves-as-a-noninvasive-biomarker-in-early-diagnosis-of-alzheimer-s-disease
#10
Rui Guo, Gang Fan, Jian Zhang, Chunxiao Wu, Yifeng Du, Hui Ye, Zhang Li, Lili Wang, Zhihui Zhang, Lu Zhang, Yueran Zhao, Zhiming Lu
Alzheimer's disease (AD) is the most common type of age-related neurodegenerative disorder; nevertheless, nowadays there are no reliable biomarkers or non-invasive techniques available for its early detection. Recent studies have indicated that the circulating level profiles of microRNAs (miRNAs) have the potential to be used as valuable biomarkers for diagnosis, staging, and progress monitoring of various diseases. Here we report a novel 9-miRNA signature (hsa-miR-26a-5p, hsa-miR-181c-3p, hsa-miR-126-5p, hsa-miR-22-3p, hsa-miR-148b-5p, hsa-miR-106b-3p, hsa-miR-6119-5p, hsa-miR-1246, and hsa-miR-660-5p) that can be utilized as biomarker for detecting AD...
October 12, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29036817/initial-heart-rate-reactivity-to-socioemotional-pictures-in-early-onset-alzheimer-s-disease
#11
Aditi Joshi, Elvira Jimenez, Mario F Mendez
Patients with Alzheimer's disease (AD) often have generalized anxiety, particularly in early-onset AD (EOAD) or the first stages of their disease. This increased anxiety could be associated with decreased sensorimotor gating with increased attention to significant stimuli from AD pathology in the entorhinal cortex. We investigated whether widening initial attention to socioemotional stimuli was association with anxiety among 16 patients with first stage EOAD compared to 19 normal controls (NCs). The participants underwent assessment of their initial heart rate deceleration ("orienting response"; OR), a measure of attentional refocusing, to pictures (International Affective Picture Stimuli) varying in pleasant-unpleasant valence and social-nonsocial content...
October 11, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29036813/association-between-later-life-lifestyle-factors-and-alzheimer-s-disease-biomarkers-in-non-demented-individuals-a-longitudinal-descriptive-cohort-study
#12
Babette L R Reijs, Stephanie J B Vos, Hilkka Soininen, Jyrki Lötjonen, Juha Koikkalainen, Maria Pikkarainen, Anette Hall, Ritva Vanninen, Yawu Liu, Sanna-Kaisa Herukka, Yvonne Freund-Levi, Giovanni B Frisoni, Lutz Frölich, Flavio Nobili, Marcel Olde Rikkert, Luiza Spiru, Magda Tsolaki, Åsa K Wallin, Philip Scheltens, Frans Verhey, Pieter Jelle Visser
BACKGROUND: Lifestyle factors have been associated with the risk of dementia, but the association with Alzheimer's disease (AD) remains unclear. OBJECTIVE: To examine the association between later life lifestyle factors and AD biomarkers (i.e., amyloid-β 1-42 (Aβ42) and tau in cerebrospinal fluid (CSF), and hippocampal volume) in individuals with subjective cognitive decline (SCD) and mild cognitive impairment (MCI). In addition, to examine the effect of later life lifestyle factors on developing AD-type dementia in individuals with MCI...
October 11, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29036807/obtaining-and-characterization-of-monoclonal-antibodies-against-recombinant-extracellular-domain-of-human-epidermal-growth-factor-receptor-2
#13
Sarina Nurgul, Abeldenov Sailau, Turgimbayeva Aigerim, Zhylkibayev Assylbek, Ramankulov Erlan, Khassenov Bekbolat, Eskendirova Saule
Human epidermal growth factor receptor 2 (HER2) is an important biomarker for detection and treatment of different types of cancers such as breast, ovarian, stomach cancer. In this study, we developed a monoclonal antibody against the extracellular domain (ECD) of HER2 biomarker of breast cancer. For this purpose, the ECD-HER2 gene was amplified and cloned into an expression vector. Gene was generated in Escherichia coli BL21 (DE3) strain for expression of recombinant protein. The expressed protein was separated by SDS-PAGE and detected by anti-his monoclonal antibody in immunoblotting...
September 8, 2017: Human Antibodies
https://www.readbyqxmd.com/read/29036792/are-helicobacter-pylori-highly-cytotoxic-genotypes-and-cardia-gastric-adenocarcinoma-linked-lessons-from-iran
#14
Seyedeh Zahra Bakhti, Saeid Latifi-Navid, Saber Zahri, Fatemeh Sadat Bakhti, Naser Hajavi, Abbas Yazdanbod
BACKGROUND: Although the most extensive studies revealed the role of H. pylori VacA and CagA toxins in the development of gastric adenocarcinoma, the magnitude of this association and the correlations of vacA mosaicism and cagA status with cardia gastric adenocarcinoma (CGA) still remain controversial. OBJECTIVE: We aimed to examine the linkage of H. pylori highly cytotoxic genotypes to CGA in Iranian populations as a model. METHODS: A total of 601 Iranian patients were enrolled...
September 29, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29036787/evaluation-of-serum-ccl18-as-a-potential-biomarker-for-ovarian-cancer
#15
Linjing Yuan, Jianxin Wan, Chumei Huang, Jingjing Liang, Min Liu, Caifeng Yue, Laisheng Li
BACKGROUND: Early detection and differentiation diagnosis of a pelvic mass (PM) is crucial in improving the prognosis of patients with epithelial ovarian cancer (EOC). C-C motif chemokine ligand 18 (CCL18) was reported as a chemokine-mediated tumor-related inflammation that can be detected in serum and may correlate with cancer patients' prognosis. OBJECTIVE: We performed this study to investigate the relationship between CCL18 levels and clinical characteristics of EOC patients, and to explore their diagnostic and prognostic values...
September 29, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29036784/decreased-expression-of-lncrna-vps9d1-as1-in-gastric-cancer-and-its-clinical-significance
#16
Min Chen, Xiaoliang Wu, Wenjuan Ma, Qianghua Zhou, Xing Wang, Rongxin Zhang, Jiahong Wang, Xianzi Yang
BACKGROUND: A recent study has demonstrated that the long non-coding RNA VPS9D1-AS1 is highly expressed in colorectal cancer and predicts poor prognosis. However, role of VPS9D1-AS1 in gastric cancer remained poorly understood. OBJECTIVE: The aim of this study is to decipher the expression of VPS9D1-AS1 in gastric cancer (GC) patients, so as to assess whether or not it could be used as a novel biomarker for prognosis in gastric cancer patients. METHODS: The expression of VPS9D1-AS1 was examined in cancer tissues and paired adjacent non-tumorous tissues from 126 gastric cancer patients using qRT-PCR...
September 29, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29036705/chalcogenozidovudine-derivatives-with-antitumor-activity-comparative-toxicities-in-cultured-human-mononuclear-cells
#17
Assis Ecker, Pauline Christ Ledur, Rafael S da Silva, Daniela Bitencourt Rosa Leal, Oscar E D Rodrigues, Daniel Ardisson-Araújo, Emily Pansera Waczuk, João Batista Teixeira da Rocha, Nilda Vargas Barbosa
Considering a novel series of zidovudine (AZT) derivatives encompassing selenoaryl moieties promising candidates as therapeutics, we examined the toxicities elicited by AZT and derivatives 5'-(4-Chlorophenylseleno)zidovudine (SZ1); 5'-(Phenylseleno)zidovudine (SZ2); and 5'-(4-Methylphenylseleno)zidovudine (SZ3) in healthy cells and in mice. Resting and stimulated cultured human peripheral blood mononuclear cells (PBMCs) were treated with the compounds at concentrations ranging from 10 to 200 µM for 24 and/or 72 h...
July 28, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29036575/peptides-of-the-variable-igg-domain-as-potential-biomarker-candidates-in-primary-open-angle-glaucoma-poag
#18
Carsten Schmelter, Natarajan Perumal, Sebastian Funke, Katharina Bell, Norbert Pfeiffer, Franz H Grus
Autoantibody profiling has gained increasing interest in the research field of glaucoma promising the detection of highly specific and sensitive marker candidates for future diagnostic purposes. Recent studies demonstrated that immune responses are characterized by the expression of congruent or similar complementarity determining regions (CDR) in different individuals and could be used as molecular targets in biomarker discovery. Main objective of this study was to characterize glaucoma-specific peptides from the variable region of sera-derived immunoglobulins using liquid chromatography - mass spectrometry (LC-MS) - based quantitative proteomics...
September 22, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29036547/b-type-natriuretic-peptide-and-ventricular-dysfunction-in-the-prediction-of-cardiovascular-events-and-death-in-hypertension
#19
Joe Gallagher, Chris Watson, Shuaiwei Zhou, Fiona Ryan, Mark Ledwidge, Kenneth McDonald
Background: The prevalence and morbidity of hypertension continues to grow globally and improved methods of stratifying risk and identifying organ damage earlier are required. Methods such as echocardiography and population based risk scores are suggested by guidelines as approaches to aid in risk stratification. However, biomarkers such as natriuretic peptides may help provide such an approach. Methods: We analysed data from the STOP-HF cohort including participants with hypertension with and without a history of a cardiovascular event at baseline...
October 4, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/29036534/constitutive-phenolic-biomarkers-identify-na%C3%A3-ve-quercus-agrifolia-resistant-to-phytophthora-ramorum-the-causal-agent-of-sudden-oak-death
#20
Anna O Conrad, Brice A McPherson, David L Wood, Laurence V Madden, Pierluigi Bonello
Sudden oak death, caused by the invasive pathogen Phytophthora ramorum Werres, de Cock & Man in't Veld, can be deadly for Quercus agrifolia Neé (coast live oak, CLO). However, resistant trees have been observed in natural populations. The objective of this study was to examine if pre-attack (constitutive) levels of phenolic compounds can be used as biomarkers to identify trees likely to be resistant. Naïve trees were selected from a natural population and phloem was sampled for analysis of constitutive phenolics...
September 26, 2017: Tree Physiology
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