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https://www.readbyqxmd.com/read/28421107/sexual-dimorphism-of-mirnas-secreted-by-bovine-in-vitro-produced-embryos
#1
Nicole Gross, Jenna Kropp, Hasan Khatib
Sexual dimorphism of bovine blastocysts has previously been observed through differences in development, cell death, metabolism, telomere length, DNA methylation, and transcriptomics. However, dimorphism in the secretion of miRNAs to culture media has not yet been evaluated. The objectives of this study were to determine if sex-specific blastocyst miRNA secretion occurs and to further investigate the role these miRNAs may have in the interaction between a blastocyst and the maternal environment. In vitro embryo culture was performed and media from male and female blastocysts was collected into sex-specific pools...
2017: Frontiers in Genetics
https://www.readbyqxmd.com/read/28412211/serum-mir-21-and-mir-125b-as-markers-predicting-neoadjuvant-chemotherapy-response-and-prognosis-in-stage-ii-iii-breast-cancer
#2
Baoquan Liu, Fei Su, Mingwei Chen, Yue Li, Xiuying Qi, Jianbing Xiao, Xuemei Li, Xiangchen Liu, Wenlong Liang, Yafang Zhang, Jianguo Zhang
The predictive value of serum miRNAs (ser-miRNA) for the response to neoadjuvant chemotherapy (NCT) and the prognosis of breast cancer patients was investigated in the current study. The study included 118 stage II/III breast cancer patients and 30 healthy adult women. Peripheral blood was drawn from participants before the start (baseline, BL), at the end of the second cycle (first evaluation during NCT, FEN), and at the end of NCT (second evaluation during NCT, SEN). The expression of ser-miRNAs was examined by quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) and their association with chemotherapy response and prognosis was analyzed...
April 12, 2017: Human Pathology
https://www.readbyqxmd.com/read/28411393/global-exosome-transcriptome-profiling-reveals-biomarkers-for-multiple-sclerosis
#3
Igor Selmaj, Maria Cichalewska, Magdalena Namiecinska, Grazyna Galazka, Wojciech Horzelski, Krzysztof W Selmaj, Marcin P Mycko
OBJECTIVE: Accumulating evidence supports a role for exosomes in immune regulation. In this study, we investigated the total circulating exosome transcriptome in relapsing-remitting multiple sclerosis patients (RRMS) and healthy controls (HC). METHODS: Next generation sequencing (NGS) was used to define the global RNA profile of serum exosomes in 19 RRMS patients (9 in relapse, 10 in remission) and 10 HC. We analyzed 5 million reads and over 50,000 transcripts per sample, including a detailed analysis of microRNA (miRNA) differentially expressed in RRMS...
April 15, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28401565/serum-and-exosomal-mir-122-and-mir-199a-as-a-biomarker-to-predict-therapeutic-efficacy-of-hepatitis-c-patients
#4
Xiaoyang Jiao, Zhicheng Fan, Huanzhu Chen, Ping He, Yazhen Li, Qiaoxin Zhang, Changwen Ke
AIM: MicroRNA (miRNA), which has been shown to correlate with liver functions, has been proposed as a new biomarker reflecting liver injury. The aim of the study was to investigate miRNA -122 (miR-122) and mir-RNA -199a (miR-199a) as a biomarker for predicting therapeutic efficacy in hepatitis C (HepC)patients. METHODS: 47 HepC 1b patients and 16 healthy subjects were enrolled in the study. Serum and exosomal mir-RNAs and other conventional biomarkers reflecting liver function were evaluated...
April 12, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28399937/specific-circulating-microrna-signature-of-bicuspid-aortic-valve-disease
#5
Neus Martínez-Micaelo, Raúl Beltrán-Debón, Isabel Baiges, Marta Faiges, Josep M Alegret
BACKGROUND: We aimed to determine the circulating miRNA expression profile associated with BAV and aortic dilation to provide diagnostic and prognostic biomarkers for BAV and/or aortic dilation. METHODS AND RESULTS: We applied a miRNome-wide microarray approach using plasma samples (n = 24) from healthy tricuspid aortic valve individuals, BAV patients and BAV patients with aortic dilation to compare and identify the specific miRNAs associated with BAV and aortic dilation...
April 11, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28397375/elevation-of-circulating-microrna-levels-in-obese-children-compared-to-healthy-controls
#6
M D Thompson, M J Cismowski, M Serpico, A Pusateri, D R Brigstock
As childhood obesity increases, it is becoming important to understand the complications of obesity in children and develop novel biomarkers. Evidence indicates that microRNAs (miRNA) are dys-regulated in obesity and may serve as sensitive and specific circulating biomarkers. Non-alcoholic fatty liver disease (NAFLD) is a complication of obesity that ultimately requires a liver biopsy to determine disease severity. While studies have been conducted in adults, no study to date has examined circulating miRNAs in children with obesity and NAFLD...
April 10, 2017: Clinical Obesity
https://www.readbyqxmd.com/read/28397307/genetic-variants-in-micrornas-and-their-binding-sites-within-gene-3-utrs-associate-with-susceptibility-to-age-related-macular-degeneration-amd
#7
Mohsen Ghanbari, Stefan J Erkeland, Lei Xu, Johanna M Colijn, Oscar H Franco, Abbas Dehghan, Caroline C W Klaver, Magda A Meester-Smoor
Age-related macular degeneration (AMD), the leading cause of blindness in the elderly, is a complex disease that results from multiple genetic and environmental factors. MicroRNAs (miRNAs) are small non-coding RNAs that post-transcriptionally regulate target mRNAs and are frequently implicated in human diseases. Here, we investigated the association of genetic variants in miRNAs and miRNA-binding sites within gene 3'UTRs with AMD using data from the largest AMD genome-wide association study. First, we identified three variants in miRNAs significantly associated with AMD...
April 10, 2017: Human Mutation
https://www.readbyqxmd.com/read/28393247/bioinformatics-analysis-of-gene-expression-alterations-in-microrna%C3%A2-122-knockout-mice-with-hepatocellular-carcinoma
#8
Bosheng He, Ying He, Weixiang Shi, Shenchu Gong, Xiaohong Chen, Jing Xiao, Jinhua Gu, Wenbin Ding, Yilang Wang
Reduced microRNA (miR)‑122 expression levels are frequently observed in hepatocellular carcinoma (HCC). The present study was conducted to investigate potential targets of miR‑122 and determine the underlying regulatory mechanisms of miR‑122 in HCC development. The public dataset GSE31731 was utilized, consisting of 8 miR‑122 knockout (KO) mice (miR‑122 KO) and 8 age‑matched wild‑type mice (WT group). Following data preprocessing, the differentially expressed genes (DEGs) were selected, followed by enrichment analysis...
April 7, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28388830/the-release-of-microrna-122-during-liver-preservation-is-associated-with-early-allograft-dysfunction-and-graft-survival-after-transplantation
#9
Jasmijn W Selten, Cornelia J Verhoeven, Veerle Heedfeld, Henk P Roest, Jeroen de Jonge, Jacques Pirenne, Jos van Pelt, Jan N M IJzermans, Diethard Monbaliu, Luc J W van der Laan
INTRODUCTION: Early allograft dysfunction (EAD) after liver transplantation is associated with inferior graft survival. EAD is more prevalent in grafts from donation after circulatory death (DCD). However, accurate prediction of liver function remains difficult due to the lack of specific biomarkers. Recent experimental and clinical studies highlight the potential of hepatocyte-derived microRNAs (miRNAs) as sensitive, stable and specific biomarkers of liver injury. The aim of this study was to determine whether miRNAs in graft preservation fluid are predictive for EAD after clinical liver transplantation and in an experimental DCD model...
April 7, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28377796/redox-regulating-enzymes-and-connected-microrna-regulators-have-prognostic-value-in-classical-hodgkin-lymphomas
#10
Peeter Karihtala, Katja Porvari, Ylermi Soini, Kirsi-Maria Haapasaari
There are no previous studies assessing the microRNAs that regulate antioxidant enzymes in Hodgkin lymphomas (HLs). We determined the mRNA levels of redox regulating enzymes peroxiredoxins (PRDXs) I-III, manganese superoxide dismutase (MnSOD), nuclear factor erythroid-derived 2-like 2 (Nrf2), and Kelch-like ECH-associated protein 1 (Keap1) from a carefully collected set of 41 classical HL patients before receiving any treatments. The levels of redoxmiRs, miRNAs known to regulate the above-mentioned enzymes, were also assessed, along with CD3, CD20, and CD30 protein expression...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28372464/annals-express-degradation-of-serum-micrornas-during-transient-storage-of-serum-samples-at-4%C3%A2-c
#11
Toshiko Aiso, Shu Takigami, Akiko Yamaki, Hiroaki Ohnishi
BACKGROUND: Numerous studies demonstrate the potential of circulating microRNAs as non-invasive biomarkers of several diseases. Circulating microRNAs are much more stable than mRNAs and remain largely intact even after prolonged incubation at room temperature. However, recent reports show that microRNAs in serum or plasma samples have diverse stabilities. The aim of this pilot study is to evaluate the stabilities of miR-92a, miR-122, and miR-145 in serum during transient storage at 4°C before freezing...
January 1, 2017: Annals of Clinical Biochemistry
https://www.readbyqxmd.com/read/28368488/plasma-microrna-levels-are-associated-with-hbeag-status-and-treatment-response-in-chronic-hepatitis-b-patients
#12
Meike H van der Ree, Louis Jansen, Zita Kruize, Ad C van Nuenen, Karel A van Dort, R Bart Takkenberg, Hendrik W Reesink, Neeltje A Kootstra
Background: Hepatitis B virus (HBV) modulates miRNA expression to support viral replication. The aim of this study was to identify miRNAs associated with HBeAg-status and response to antiviral therapy in chronic hepatitis B (CHB) patients, and to assess if these miRNAs are secreted by hepatoma cells. Methods: Plasma miRNA levels were measured by RT-qPCR in healthy controls (n=10), and pre-treatment samples of an identification cohort (n=24) and a confirmation cohort (n=64) of CHB patients treated with peg-interferon/nucleotide analogue combination therapy...
March 23, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28367610/plasma-mir-122-as-a-potential-diagnostic-and-prognostic-indicator-in-human-glioma
#13
Ying Tang, Shunfeng Zhao, Jiliang Wang, Dongfeng Li, Qingbo Ren, Yurong Tang
Gliomas are the most common and aggressive brain tumors, and a poor prognosis is correlated with its World Health Organization (WHO) grade. MicroRNAs (miRNAs) may serve as diagnostic and prognostic biomarkers in gliomas. In the present study, we collected plasma samples from patients with gliomas to evaluate the expression of miR-122 and analyzed the role of miR-122 in the diagnosis and prognosis of gliomas. We found that the expression of miR-122 in the plasma of patients with gliomas was significantly down-regulated compared to that in healthy individuals...
April 3, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28367266/the-hepatoprotective-and-micrornas-downregulatory-effects-of-crocin-following-hepatic-ischemia-reperfusion-injury-in-rats
#14
Ghaidafeh Akbari, Seyyed Ali Mard, Mahin Dianat, Esrafil Mansouri
Background. Liver ischemia-reperfusion (IR) injury is one of the chief etiologies of tissue damage during liver transplantation, hypovolemic shock, and so forth. This study aimed to evaluate hepatoprotective effect of crocin on IR injury and on microRNAs (miR-122 and miR-34a) expression. Materials and Methods. 32 rats were randomly divided into four groups: sham, IR, crocin pretreatment (Cr), and crocin pretreatment + IR (Cr + IR) groups. In sham and Cr groups, animals were given normal saline (N/S) and Cr (200 mg/Kg) for 7 consecutive days, respectively, and laparotomy without inducing IR was done...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28360091/transcriptional-response-to-hepatitis-c-virus-infection-and-interferon-alpha-treatment-in-the-human-liver
#15
Tujana Boldanova, Aleksei Suslov, Markus H Heim, Anamaria Necsulea
Hepatitis C virus (HCV) is widely used to investigate host-virus interactions. Cellular responses to HCV infection have been extensively studied in vitro However, in human liver, interferon (IFN)-stimulated gene expression can mask direct transcriptional responses to infection. To better characterize the direct effects of HCV infection in vivo, we analyze the transcriptomes of HCV-infected patients lacking an activated endogenous IFN system. We show that expression changes observed in these patients predominantly reflect immune cell infiltrates rather than cell-intrinsic pathways...
March 30, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28344345/gastric-bypass-surgery-with-exercise-alters-plasma-micrornas-that-predict-improvements-in-cardiometabolic-risk
#16
Y O N Lopez, P M Coen, B H Goodpaster, A A Seyhan
BACKGROUND/OBJECTIVES: Roux-en-Y gastric bypass (RYGB) surgery improves insulin sensitivity (SI) and β-cell function in obese non-diabetic subjects. Exercise also improves SI and may be an effective adjunct therapy to RYGB surgery. However, the mechanisms by which exercise or weight-loss improve peripheral SI after RYGB surgery are unclear. We hypothesized that microRNAs (miRNAs) mediate at least some of the regulatory processes driving such mechanisms. Consequently, this work aimed at profiling plasma miRNAs in participants of the Physical Activity Following Surgery Induced Weight Loss study (clinicaltrials...
March 27, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28344209/corrigendum-circulating-mir-122-5p-mir-133b-ratio-is-a-specific-early-prognostic-biomarker-in-acute-myocardial-infarction
#17
Nuno Cortez-Dias, Marina C Costa, Pedro Carrilho-Ferreira, Doroteia Silva, Cláudia Jorge, Carina Calisto, Teresa Pessoa, Susana Robalo Martins, João Carvalho de Sousa, Pedro Canas da Silva, Manuela Fiúza, António Nunes Diogo, Fausto J Pinto, Francisco J Enguita
No abstract text is available yet for this article.
2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28342299/plasma-microrna-signature-predicting-weight-gain-among-mexican-american-women
#18
Hua Zhao, Jie Shen, Carrie Daniel-MacDougall, Xifeng Wu, Wong-Ho Chow
OBJECTIVE: There is growing evidence that circulating microRNAs (miRNAs) play an important role in obesity. However, whether they can contribute to adult weight gain is still unclear. METHODS: In the training set with 40 nonsmoking, healthy women identified from the Mano-A-Mano Mexican American Cohort study, global circulating miRNA profiles in plasma samples were assessed. Cox proportional hazard regression was used to assess the effects of plasma miRNAs on significant weight gain during a 5-year follow-up...
March 25, 2017: Obesity
https://www.readbyqxmd.com/read/28337380/microrna-122-inhibits-proliferation-and-invasion-in-gastric-cancer-by-targeting-creb1
#19
Min Rao, Yonggang Zhu, Yinan Zhou, Xiaoxia Cong, Li Feng
MicroRNA-122 (miR-122) has been implicated in tumor development and progression in various types of cancers. However, the biological function and regulatory mechanisms of miR-122 in gastric cancer (GC) remain largely unknown. We aimed to determine the biological role and underlying mechanism of miR-122 in GC. Real time quantitative RT-PCR (qRT-PCR) was performed to detect the expression of miR-122 in GC tissues and cell lines. CCK8, wound healing, and transwell assays were conducted to determine the effect of miR-122 on cell proliferation, migration, and invasion, respectively...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28333713/micrornas-and-lipid-metabolism
#20
Binod Aryal, Abhishek K Singh, Noemi Rotllan, Nathan Price, Carlos Fernández-Hernando
PURPOSE OF REVIEW: Work over the past decade has identified the important role of microRNAs (miRNAS) in regulating lipoprotein metabolism and associated disorders including metabolic syndrome, obesity, and atherosclerosis. This review summarizes the most recent findings in the field, highlighting the contribution of miRNAs in controlling LDL-cholesterol (LDL-C) and HDL-cholesterol (HDL-C) metabolism. RECENT FINDINGS: A number of miRNAs have emerged as important regulators of lipid metabolism, including miR-122 and miR-33...
March 22, 2017: Current Opinion in Lipidology
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