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https://www.readbyqxmd.com/read/29332568/fgf-21-as-a-potential-biomarker-for-mitochondrial-diseases
#1
Leila Motlagh Scholle, Diana Lehmann, Marcus Deschauer, Torsten Kraya, Stephan Zierz
The diagnosis of mitochondrial diseases is still challenging due to clinical and genetical heterogeneity. The development of advanced technologies including Whole-Exome-Sequencing (WES) and Whole-Genome-Sequencing (WGS) have led to improvements in genetic diagnosis. However, a reliable biomarker in serum could enhance and ease the diagnosis and indeed reduce the need for muscle biopsy. Several studies suggest Fibroblast growth factor 21 (FGF-21) as a biomarker for diagnosis in mitochondrial disorders. It is known, that in patients with mitochondrial disorders, the expression of FGF-21 gets elevated in an effort to counteract the underlying metabolic deficiency...
January 10, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29304224/in-vitro-differentiation-of-human-oocyte-like-cells-from-oogonial-stem-cells-single-cell-isolation-and-molecular-characterization
#2
Erica Silvestris, Paola Cafforio, Stella D'Oronzo, Claudia Felici, Franco Silvestris, Giuseppe Loverro
STUDY QUESTION: Are the large cells derived from cultured DEAD box polypeptide 4 (DDX4)-positive oogonial stem cells (OSCs), isolated from the ovarian cortex of non-menopausal and menopausal women, oocyte-like cells? SUMMARY ANSWER: Under appropriate culture conditions, DDX4-positive OSCs from non-menopausal and menopausal women differentiate into large haploid oocyte-like cells expressing the major oocyte markers growth differentiation factor 9 (GDF-9) and synaptonemal complex protein 3 (SYCP3) and then enter meiosis...
January 3, 2018: Human Reproduction
https://www.readbyqxmd.com/read/29286087/growth-differentiation-factor%C3%A2-5-induces-tenomodulin-expression-via-phosphorylation-of-p38-and-promotes-viability-of-murine-mesenchymal-stem-cells-from-compact-bone
#3
Yanlong Qu, Li Zhou, Bing Lv, Chunlei Wang, Pengwei Li
Growth differentiation factor (GDF)‑5 serves a role in tissue development and tenomodulin serves an important role in the development of tendons. The effects of GDF‑5 on mesenchymal stem cells (MSCs), particularly with regards to tendon bioengineering, are poorly understood. The present study aimed to investigate the effects of GDF‑5 on cell viability and tenomodulin expression in MSCs from murine compact bone. MSCs were isolated from murine compact bones and confirmed by flow cytometric analysis. In addition, the adipogenic, osteoblastic and chondrocyte differentiation capabilities of the MSCs were determined...
December 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29284185/effect-of-fh535-on-in%C3%A2-vitro-maturation-of-porcine-oocytes-by-inhibiting-wnt-signaling-pathway
#4
Meihong Shi, Jianyong Cheng, Yamei He, Zhongliang Jiang, Bello M Bodinga, Boyang Liu, Huali Chen, Qingwang Li
Wingless-int (WNT) signaling pathway is vital to modulate life processes, including cell fate determination, cell differentiation, cell proliferation, cell apoptosis and embryogenesis. To demonstrate the uncertain effect of the canonical WNT signaling pathway on oocyte maturation, immature porcine oocytes were collected and cultured in vitro with the WNT/β-catenin inhibitor FH535. The concentrations of FH535 were selected as 0.00, 0.01, 0.10, 1.00 and 10.00 μmol/L. The results showed that the optimum concentration of FH535 on oocyte maturation was 1...
December 28, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/29275510/bisphenol-a-induces-dsb-atm-p53-signaling-leading-to-cell-cycle-arrest-senescence-autophagy-stress-response-and-estrogen-release-in-human-fetal-lung-fibroblasts
#5
Laziyan Mahemuti, Qixuan Chen, Melanie C Coughlan, Cunye Qiao, Nikolai L Chepelev, Maria Florian, Dillon Dong, Robert G Woodworth, Jin Yan, Xu-Liang Cao, Kylie A Scoggan, Xiaolei Jin, William G Willmore
Experimental and/or epidemiological studies suggest that prenatal exposure to bisphenol A (BPA) may delay fetal lung development and maturation and increase the susceptibility to childhood respiratory disease. However, the underlying mechanisms remain to be elucidated. In our previous study with cultured human fetal lung fibroblasts (HFLF), we demonstrated that 24-h exposure to 1 and 100 µM BPA increased GPR30 protein in the nuclear fraction. Exposure to 100 μM BPA had no effects on cell viability, but increased cytoplasmic expression of ERβ and release of GDF-15, as well as decreased release of IL-6, ET-1, and IP-10 through suppression of NFκB phosphorylation...
December 23, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/29239349/influences-of-ivabradine-treatment-on-serum-levels-of-cardiac-biomarkers-sst2-gdf-15-supar-and-h-fabp-in-patients-with-chronic-heart-failure
#6
Peter Jirak, Dzeneta Fejzic, Vera Paar, Bernhard Wernly, Rudin Pistulli, Ilonka Rohm, Christian Jung, Uta C Hoppe, P Christian Schulze, Michael Lichtenauer, Atilla Yilmaz, Daniel Kretzschmar
Chronic heart failure (CHF) represents a major cause of hospitalization and death. Recent evidence shows that novel biomarkers such as soluble suppression of tumorigenicity (sST2), growth-differentiation factor-15 (GDF-15), soluble urokinase plasminogen activator receptor (suPAR) and heart-type fatty acid binding protein (H-FABP) are correlated with inflammatory and ischemic responses in CHF patients. In this study we examined the effects of Ivabradine that inhibited the hyperpolarization-activated cyclic nucleotide-gated channel (HCN channel, also called funny current If), thereby leading to selective heart rate reduction and improved myocardial oxygen supply on the cardiac biomarkers sST2, GDF-15, suPAR and H-FABP in 50 CHF patients at the University Hospital of Jena...
December 14, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29224368/immune-response-proteins-as-predictive-biomarkers-of-doxorubicin-induced-cardiotoxicity-in-breast-cancer-patients
#7
Li-Rong Yu, Zhijun Cao, Issam Makhoul, Jaclyn R Daniels, Suzanne Klimberg, Jeanne Y Wei, Jane Pf Bai, Jinong Li, Julia T Lathrop, Richard D Beger, Valentina K Todorova
Cancer treatment with doxorubicin (DOX) can induce cumulative dose-dependent cardiotoxicity. Currently, there are no specific biomarkers that can identify patients at risk during the initial doses of chemotherapy. The aim of this study was to examine plasma cytokines/chemokines and potential cardiovascular biomarkers for the prediction of DOX-induced cardiotoxicity. Plasma samples were collected before (T0), and after the first (T1) and the second (T2) cycles of DOX-based chemotherapy of 27 breast cancer patients, including five patients who presented with >10% decline of left ventricular ejection fraction (LVEF), five patients with LVEF decline of 5-10%, and 17 patients who maintained normal LVEF at the end of chemotherapy (240 mg/m2 cumulative dose of DOX from four cycles of treatment)...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29222133/gdf-15-growth-differentiation-factor-15-is-associated-with-lack-of-ventricular-recovery-and-mortality-after-transcatheter-aortic-valve-replacement
#8
Juyong Brian Kim, Yukari Kobayashi, Kegan J Moneghetti, Daniel A Brenner, Ryan O'Malley, Ingela Schnittger, Joseph C Wu, Gillian Murtagh, Agim Beshiri, Michael Fischbein, D Craig Miller, David Liang, Alan C Yeung, Francois Haddad, William F Fearon
BACKGROUND: Recent data suggest that circulating biomarkers may predict outcome in patients undergoing transcatheter aortic valve replacement (TAVR). We examined the association between inflammatory, myocardial, and renal biomarkers and their role in ventricular recovery and outcome after TAVR. METHODS AND RESULTS: A total of 112 subjects undergoing TAVR were included in the prospective registry. Plasma levels of B-type natriuretic peptide, hs-TnI (high-sensitivity troponin I), CRP (C-reactive protein), GDF-15 (growth differentiation factor 15), GAL-3 (galectin-3), and Cys-C (cystatin-C) were assessed before TAVR and in 100 sex-matched healthy controls...
December 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29220105/less-fibrosis-in-elderly-subjects-supplemented-with-selenium-and-coenzyme-q10-a-mechanism-behind-reduced-cardiovascular-mortality
#9
Urban Alehagen, Jan Aaseth, Jan Alexander, Erland Svensson, Peter Johansson, Anders Larsson
BACKGROUND: In an intervention study where 221 healthy elderly persons received selenium and coenzyme Q10 as a dietary supplement, and 222 received placebo for 4 years we observed improved cardiac function and reduced cardiovascular mortality. As fibrosis is central in the aging process, we investigated the effect of the intervention on biomarkers of fibrogenic activity in a subanalysis of this intervention study. MATERIAL AND METHODS: In the present subanalysis 122 actively treated individuals and 101 controls, the effect of the treatment on eight biomarkers of fibrogenic activity were assessed...
December 8, 2017: BioFactors
https://www.readbyqxmd.com/read/29199510/regulation-of-rhoa-gtpase-and-novel-target-proteins-for-rock
#10
Eun-Kyoung Choi, Jae-Gyu Kim, Hee-Jun Kim, Jung-Yoon Cho, Hwalrim Jeong, Yohan Park, Rokibul Islam, Cuong Kim Cap, Jae-Bong Park
Rho GTPases play significant roles in cellular function and their activity is regulated by guanine nucleotide exchange factors (GEFs) and GTPase activating proteins (GAPs), providing activation and inactivation of these GTPases, respectively. Active GTP-bound form of RhoA activates its effector proteins while the inactive GDP-bound form of RhoA exists in a RhoA-RhoGDI (guanine nucleotide dissociation inhibitor) complex in the cytosol. In particular, IκB kinase γ IKKγ/NF-κB essential modulator (NEMO) plays a role as a GDI displacement factor (GDF) for RhoA activation through binding to RhoA-RhoGDI complex...
December 3, 2017: Small GTPases
https://www.readbyqxmd.com/read/29186876/melatonin-improves-the-quality-of-inferior-bovine-oocytes-and-promoted-their-subsequent-ivf-embryo-development-mechanisms-and-results
#11
Minghui Yang, Jingli Tao, Menglong Chai, Hao Wu, Jing Wang, Guangdong Li, Changjiu He, Lu Xie, Pengyun Ji, Yunping Dai, Liguo Yang, Guoshi Liu
The inferior oocytes (IOs), which are not suitable for embryo development, occupy roughly one-third or more of the collected immature bovine oocytes. The IOs are usually discarded from the in vitro bovine embryo production process. Improving the quality of the inferior oocytes (IOs) and make them available in in vitro embryo production would have important biological, as well as commercial, value. This study was designed to investigate whether melatonin could improve the quality of IOs and make them usable in the in vitro maturation (IVM) and subsequent (in vitro fertilization) IVF embryo development...
November 27, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29184444/development-and-validation-of-a-panel-of-five-proteins-as-blood-biomarkers-for-early-detection-of-colorectal-cancer
#12
Hongda Chen, Jing Qian, Simone Werner, Katarina Cuk, Phillip Knebel, Hermann Brenner
Objective: Reliable noninvasive biomarkers for early detection of colorectal cancer (CRC) are highly desirable for efficient population-based screening with high adherence rates. We aimed to discover and validate blood-based protein markers for the early detection of CRC. Patients and methods: A two-stage design with a discovery and a validation set was used. In the discovery phase, plasma levels of 92 protein markers and serum levels of TP53 autoantibody were measured in 226 clinically recruited CRC patients and 118 controls who were free of colorectal neoplasms at screening colonoscopy...
2017: Clinical Epidemiology
https://www.readbyqxmd.com/read/29180833/growth-differentiation-factor-15-is-a-predictor-of-mortality-in-critically-ill-patients-with-sepsis
#13
Lukas Buendgens, Eray Yagmur, Jan Bruensing, Ulf Herbers, Christer Baeck, Christian Trautwein, Alexander Koch, Frank Tacke
Growth differentiation factor-15 (GDF-15) is a member of the transforming growth factor-β superfamily related to inflammation and macrophage activation. Serum concentrations of GDF-15 can predict poor survival in chronic diseases, but its role in sepsis is obscure. Therefore, we investigated GDF-15 as a prognostic biomarker in critically ill patients. We measured GDF-15 levels in 219 critically ill patients (146 with sepsis, 73 without sepsis) upon admission to the intensive care unit (ICU), in comparison to 66 healthy controls...
2017: Disease Markers
https://www.readbyqxmd.com/read/29178756/porosity-of-flowable-resin-composites-is-not-influenced-by-applicator-tip-diameter
#14
Rémy Balthazard, Stéphanie Jager, Olivier Ferry, Abdessellam Dahoun, Eric Mortier
PURPOSE: To assess the influence of applicator tip diameter on the inclusion of porosities in three different flowable resin composites. METHODS: The initial porosity of three syringes [Filtek Supreme XTE Flowable (XTE), Grandio Flow (GRF), Gradia Direct Flo (GDF)] was determined by 3D tomography. 25 samples per syringe, i.e. 75 samples in total, were prepared using five applicator tips of different diameters (n= 5). The porosity of the 75 samples was assessed by 3D tomography...
June 2017: American Journal of Dentistry
https://www.readbyqxmd.com/read/29171983/growth-differentiation-factor-gdf-15-concentration-combined-with-ca125-levels-in-serum-is-superior-to-commonly-used-cancer-biomarkers-in-differentiation-of-pancreatic-mass
#15
Piotr Hogendorf, Adam Durczyński, Aleksander Skulimowski, Anna Kumor, Grażyna Poznańska, Janusz Strzelczyk
BACKGROUND: Pancreatic cancer (PDAC) will have been the second leading cancer-related death in the United States by 2020, according to current estimation. Its late manifestation and the lack of good early detection methods are the cause of extremely low survival rates. Therefore, there is an urgent need to develop highly sensitive and specific marker. GDF-15, a member of TGFbeta family, has recently emerged as a protein playing an important role in carcinogenesis of various neoplasms...
November 17, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29169757/hs-ctroponins-for-the-prediction-of-recurrent-cardiovascular-events-in-patients-with-established-chd-a-comparative-analysis-from-the-karola-study
#16
Henning Jansen, Andrea Jänsch, Lutz P Breitling, Liesa Hoppe, Dhayana Dallmeier, Roman Schmucker, Hermann Brenner, Wolfgang Koenig, Dietrich Rothenbacher
BACKGROUND: High-sensitivity Troponins (hs-cTnT and hs-cTnI) are established biomarkers to identify patients with an acute myocardial infarction. However, data comparing the capacity of these two subtypes in predicting recurrent cardiovascular disease (CVD) events in a population with stable coronary heart disease (CHD) after adjustment for several other modern biomarkers are lacking. METHODS: We measured both troponins at baseline in 1068 CHD patients, followed them for 13years, assessed a combined CVD endpoint, and adjusted for multiple traditional and novel risk factors...
January 1, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29151120/biomechanical-stress-in-myocardial-infarctions-can-endothelin-1-and-growth-differentiation-factor-15-serve-as-immunohistochemical-markers
#17
M Falk, R Huhn, F Behmenburg, St Ritz-Timme, F Mayer
Myocardial infarctions go along with biomechanical stress, i.e. stretching of muscle fibres, and the expression of certain marker molecules. We tested if two of those markers, endothelin-1 (ET-1) and growth differentiation factor 15 (GDF-15), can be used as immunohistochemical markers for myocardial ischaemia/infarctions. The study included experiments with an animal model, the isolated perfused Langendorff heart, as well as the investigation of human tissue samples drawn during autopsies. The overall picture of our results showed that GDF-15 is very sensitive and expressed very fast, not only as a consequence of ischaemia/infarctions, but also under other circumstances...
November 18, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29136146/the-abc-death-risk-score-is-it-time-to-start-measuring-gdf-15
#18
M Benjamin Shoemaker, William G Stevenson
No abstract text is available yet for this article.
November 10, 2017: European Heart Journal
https://www.readbyqxmd.com/read/29129999/expression-of-genes-and-their-polymorphism-influences-the-risk-of-knee-osteoarthritis
#19
Abhishek Mishra, Rajeshwar Nath Srivastava, Sachin Awasthi, Devendra Parmar, Priya Mishra
Introduction: Genetic factors including the level of expression of the fingerprint of genes involved in the development of bones and cartilage such as GDF-5 or ESR-α or CALM-1 are known to be strong determinants of the osteoarthritis (OA) in Caucasian and Oriental populations. Because of high prevalence of OA in Indian population and availability of limited genetic data, we determined whether similar genetic factors are involved in Indians as well. Methods: A case control study was carried out involving 500 patients of knee OA and equal number of healthy controls...
2017: Journal of Nucleic Acids
https://www.readbyqxmd.com/read/29099703/growth-differentiation-factor-15-as-a-prognostic-marker-of-chronic-heart-failure-progression-in-long-term-follow-up-after-acute-coronary-syndrome
#20
M Kopytsya, I Vyshnevska, O Protsenko, H Barahmeh
Acute coronary syndrome remains a significant problem for cardiologists. Despite improved therapy, mortality remains extremely high once CHF becomes symptomatic. Multimarker approach in cardiovascular risk prediction was proved as the most effective tool. One of the promising biomarkers is a stress-induced marker growth differentiation factor 15 (GDF-15). Purpose of the study was to improve stratification methods of CHF progression risk as a complication of ACS by studying levels of GDF-15. In our study we showed association between high level of GDF-15, determined at the first 24 hours after ACS, and CHF progression after 12 months...
October 2017: Georgian Medical News
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