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https://www.readbyqxmd.com/read/27907106/brain-transcriptional-profiles-of-male-alternative-reproductive-tactics-and-females-in-bluegill-sunfish
#1
Charlyn G Partridge, Matthew D MacManes, Rosemary Knapp, Bryan D Neff
Bluegill sunfish (Lepomis macrochirus) are one of the classic systems for studying male alternative reproductive tactics (ARTs) in teleost fishes. In this species, there are two distinct life histories: parental and cuckolder, encompassing three reproductive tactics, parental, satellite, and sneaker. The parental life history is fixed, whereas individuals who enter the cuckolder life history transition from sneaker to satellite tactic as they grow. For this study, we used RNAseq to characterize the brain transcriptome of the three male tactics and females during spawning to identify gene ontology (GO) categories and potential candidate genes associated with each tactic...
2016: PloS One
https://www.readbyqxmd.com/read/27889934/vascular-cell-transcriptomic-changes-to-exercise-training-differ-directionally-along-and-between-skeletal-muscle-arteriolar-trees
#2
M Harold Laughlin, Hsiao T Yang, Darla L Tharp, R Scott Rector, Jaume Padilla, Douglas K Bowles
EXT-induced arteriolar adaptations in skeletal muscle are heterogeneous because of spatial variations in muscle fiber type composition and fiber recruitment patterns during exercise. The purpose of this report is to summarize a series of experiments conducted to test the hypothesis that changes in vascular gene expression are signaled by alterations in shear stress resulting from increases in blood flow, muscle fiber type composition and fiber recruitment patterns. We also report results from a follow-up study of Ankrd23, one gene whose expression was changed by EXT...
November 27, 2016: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/27822872/constitutive-expression-of-inducible-cyclic-adenosine-monophosphate-early-repressor-icer-in-cycling-quiescent-hematopoietic-cells-implications-for-aging-hematopoietic-stem-cells
#3
Steven J Greco, Ghassan Yehia, Julius A Potian, Carlos A Molina, Pranela Rameshwar
Despite extensive insights on the interaction between hematopoietic stem cells (HSCs) and the supporting bone marrow (BM) stroma in hematopoietic homeostasis there remains unanswered questions on HSC regulation. We report on the mechanism by which HSCs attain cycling quiescence by addressing a role for inducible cyclic AMP early repressor (ICER). ICER negatively transcriptional regulators of cAMP activators such as CREM and CREB. These activators can be induced by hematopoietic stimulators such as cytokines...
November 8, 2016: Stem Cell Reviews
https://www.readbyqxmd.com/read/27813452/cognitive-remediation-to-enhance-mobility-in-older-adults-the-crem-study
#4
Joe Verghese, Emmeline Ayers, Jeannette R Mahoney, Anne Ambrose, Cuiling Wang, Roee Holtzer
Mobility disabilities represent the most prevalent disability among seniors. Emerging evidence indicates that executive functions play an important role in maintaining mobility. However, the use of cognitive remediation programs to enhance mobility has not been investigated in a full-scale randomized control trial. The CREM study is a single-blind randomized control trial to examine the effect of computerized cognitive remediation versus computer-based health education training on mobility in 420 seniors. The primary outcome is change in gait speed during normal walking and walking-while-talking conditions from baseline to postintervention...
December 2016: Neurodegenerative Disease Management
https://www.readbyqxmd.com/read/27799548/ptpn22-contributes-to-exhaustion-of-t-lymphocytes-during-chronic-viral-infection
#5
Christian J Maine, John R Teijaro, Kristi Marquardt, Linda A Sherman
The protein encoded by the autoimmune-associated protein tyrosine phosphatase nonreceptor type 22 gene, PTPN22, has wide-ranging effects in immune cells including suppression of T-cell receptor signaling and promoting efficient production of type I interferons (IFN-I) by myeloid cells. Here we show that mice deficient in PTPN22 resist chronic viral infection with lymphocytic choriomeningitis virus clone 13 (LCMV cl13). The numbers and function of viral-specific CD4 T lymphocytes is greatly enhanced, whereas expression of the IFNβ-induced IL-2 repressor, cAMP-responsive element modulator (CREM) is reduced...
November 15, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27733803/the-expression-of-cyclic-adenosine-monophosphate-responsive-element-modulator-in-rat-sertoli-cells-following-seminal-extract-administration
#6
Muslim Akmal, Tongku Nizwan Siregar, Sri Wahyuni, Hamny, Mustafa Kamal Nasution, Wiwik Indriati, Budianto Panjaitan, Dwinna Aliza
AIM: This study aims to determine the effect of seminal vesicle extract on cyclic adenosine monophosphate responsive element modulator (CREM) expression in rat Sertoli cells. MATERIALS AND METHODS: This study examined the expression of CREM on 20 male rats (Rattus norvegicus) at 4 months of age, weighing 250-300 g. The rats were divided into four groups: K0, KP1, KP2, and KP3. K0 group was injected with 0.2 ml normal saline; KP1 was injected with 25 mg cloprostenol (Prostavet C, Virbac S...
September 2016: Veterinary World
https://www.readbyqxmd.com/read/27680869/icer-is-requisite-for-th17-differentiation
#7
Nobuya Yoshida, Denis Comte, Masayuki Mizui, Kotaro Otomo, Florencia Rosetti, Tanya N Mayadas, José C Crispín, Sean J Bradley, Tomohiro Koga, Michihito Kono, Maria P Karampetsou, Vasileios C Kyttaris, Klaus Tenbrock, George C Tsokos
Inducible cAMP early repressor (ICER) has been described as a transcriptional repressor isoform of the cAMP response element modulator (CREM). Here we report that ICER is predominantly expressed in Th17 cells through the IL-6-STAT3 pathway and binds to the Il17a promoter, where it facilitates the accumulation of the canonical enhancer RORγt. In vitro differentiation from naive ICER/CREM-deficient CD4(+) T cells to Th17 cells is impaired but can be rescued by forced overexpression of ICER. Consistent with a role of Th17 cells in autoimmune and inflammatory diseases, ICER/CREM-deficient B6...
September 29, 2016: Nature Communications
https://www.readbyqxmd.com/read/27614313/sulfur-dioxide-inhalation-lowers-sperm-quality-and-alters-testicular-histology-via-increasing-expression-of-crem-and-act-proteins-in-rat-testes
#8
Jianhai Zhang, Fei Zheng, Chen Liang, Yuchen Zhu, Yan Shi, Yongli Han, Jundong Wang
Sulfur dioxide (SO2) is one of the main atmospheric pollutants worldwide, and is reported to be responsible for the formation of severe haze in China. Some studies have demonstrated a potential harmful effect of SO2 on the male reproductive system; however the underlying mechanism is still unknown. The purpose of this study is to investigate the roles of cytochrome P450 (P450), cAMP-responsive element modulator (CREM), and activator of CREM (ACT) in SO2-induced toxicity. Forty-eight male Wistar rats were randomly divided into an experimental and control group...
September 4, 2016: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/27560004/expression-dynamics-relationships-and-transcriptional-regulations-of-diverse-transcripts-in-mouse-spermatogenic-cells
#9
Xiwen Lin, Miao Han, Lu Cheng, Jian Chen, Zhuqiang Zhang, Ting Shen, Min Wang, Bo Wen, Ting Ni, Chunsheng Han
Among all tissues of the metazoa, the transcritpome of testis displays the highest diversity and specificity. However, its composition and dynamics during spermatogenesis have not been fully understood. Here, we have identified 20,639 message RNAs (mRNAs), 7,168 long non-coding RNAs (lncRNAs) and 15,101 circular RNAs (circRNAs) in mouse spermatogenic cells, and found many of them were specifically expressed in testes. lncRNAs are significantly more testis-specific than mRNAs. At all stages, mRNAs are generally more abundant than lncRNAs, and linear transcripts are more abundant than circRNAs...
October 2, 2016: RNA Biology
https://www.readbyqxmd.com/read/27467390/rapid-extraction-and-identification-of-maitotoxin-and-ciguatoxin-like-toxins-from-caribbean-and-pacific-gambierdiscus-using-a-new-functional-bioassay
#10
Richard J Lewis, Marco Inserra, Irina Vetter, William C Holland, D Ransom Hardison, Patricia A Tester, R Wayne Litaker
BACKGROUND: Ciguatera is a circumtropical disease produced by polyether sodium channel toxins (ciguatoxins) that enter the marine food chain and accumulate in otherwise edible fish. Ciguatoxins, as well as potent water-soluble polyethers known as maitotoxins, are produced by certain dinoflagellate species in the genus Gambierdiscus and Fukuyoa spp. in the Pacific but little is known of the potential of related Caribbean species to produce these toxins. METHODS: We established a simplified procedure for extracting polyether toxins from Gambierdiscus and Fukuyoa spp...
2016: PloS One
https://www.readbyqxmd.com/read/27465138/piggybac-transposon-mediated-mutagenesis-in-rats-reveals-a-crucial-role-of-bbx-in-growth-and-male-fertility
#11
Chieh-Ying Wang, Ming-Chu Tang, Wen-Chi Chang, Kenryo Furushima, Chuan-Wei Jang, Richard R Behringer, Chun-Ming Chen
Bobby sox homolog (Bbx) is an evolutionally conserved gene, but its biological function remains elusive. Here, we characterized defects of Bbx mutant rats that were created by PiggyBac-mediated insertional mutagenesis. Smaller body size and male infertility were the two major phenotypes of homozygous Bbx mutants. Bbx expression profile analysis showed that Bbx was more highly expressed in the testis and pituitary gland than in other organs. Histology and hormonal gene expression analysis of control and Bbx-null pituitary glands showed that loss of Bbx appeared to be dispensable for pituitary histogenesis and the expression of major hormones...
September 2016: Biology of Reproduction
https://www.readbyqxmd.com/read/27430551/in-vitro-differentiation-of-rat-spermatogonia-into-round-spermatids-in-tissue-culture
#12
A Reda, M Hou, T R Winton, R E Chapin, O Söder, J-B Stukenborg
STUDY QUESTION: Do the organ culture conditions, previously defined for in vitro murine male germ cell differentiation, also result in differentiation of rat spermatogonia into post-meiotic germ cells exhibiting specific markers for haploid germ cells? SUMMARY ANSWER: We demonstrated the differentiation of rat spermatogonia into post-meiotic cells in vitro, with emphasis on exhibiting, protein markers described for round spermatids. WHAT IS KNOWN ALREADY: Full spermatogenesis in vitro from immature germ cells using an organ culture technique in mice was first reported 5 years ago...
September 2016: Molecular Human Reproduction
https://www.readbyqxmd.com/read/27419096/astragalus-membranaceus-augment-sperm-parameters-in-male-mice-associated-with-camp-responsive-element-modulator-and%C3%A2-activator-of-crem-in-testis
#13
Wonnam Kim, Do Rim Kim, Mun Seog Chang, Seong Kyu Park
Astragalus membranaceus BUNGE (AM; huáng qí) has been widely used as a medicinal herb for different kinds of diseases. AM treatment in vitro enhance sperm motility and ameliorates testicular toxicity, it has demonstrated the ability as a potential treatment for male infertility. In order to gain further insights on the molecular understanding of how AM enhances spermatogenesis, this study investigated whether AM has an affect on sperm parameters associated with cAMP response element modulator (CREM) and activator of CREM in testis (ACT) expression...
July 2016: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/27357293/evaluation-of-the-sebia-capillarys-3-tera-and-the-bio-rad-d-100-systems-for-the-measurement-of-hemoglobin-a1c
#14
Margaux Herpol, Katrien Lanckmans, Stefaan Van Neyghem, Pascale Clement, Stefanie Crevits, Kim De Crem, Frans K Gorus, Ilse Weets
OBJECTIVES: We evaluated the Bio-Rad (Irvine, CA) D-100 and the Sebia (Lisses, France) Capillarys 3 Tera for the measurement of hemoglobin A1c (HbA1c) in venous blood samples. METHODS: Whole-blood samples and control material were analyzed with the D-100 and Capillarys 3 Tera and compared with our routine method, HLC-723G7 (Tosoh, Tokyo, Japan). An evaluation protocol to test precision, trueness, linearity, carryover, and selectivity was set up according to Clinical and Laboratory Standards Institute guidelines...
July 2016: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/27339408/the-monoglyceride-content-affects-the-self-assembly-behavior-rheological-properties-syringeability-and-mucoadhesion-of-in-situ-gelling-liquid-crystalline-phase
#15
Kariane M Nunes, Cristian C C Teixeira, Renata C K Kaminski, Victor H V Sarmento, Renê O Couto, Sandra H Pulcinelli, Osvaldo Freitas
This article reports the development of a precursor liquid crystalline system based on a mixture of monoglycerides (MO) and Cremophor(®) (CREM) that exhibits in situ gelation to a liquid crystalline phase. The effects of different MO/CREM ratios and the water content (WC) on several performance characteristics were investigated with a full factorial design. The formulations were characterized by polarized light microscopy, small-angle X-ray scattering, and water uptake assays. Rheological, syringeability, and mucoadhesion evaluation were also performed...
August 2016: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27334049/cytochrome-p450-metabolism-of-the-post-lanosterol-intermediates-explains-enigmas-of-cholesterol-synthesis
#16
Jure Ačimovič, Sandeep Goyal, Rok Košir, Marko Goličnik, Martina Perše, Ales Belič, Žiga Urlep, F Peter Guengerich, Damjana Rozman
Cholesterol synthesis is among the oldest metabolic pathways, consisting of the Bloch and Kandutch-Russell branches. Following lanosterol, sterols of both branches are proposed to be dedicated to cholesterol. We challenge this dogma by mathematical modeling and with experimental evidence. It was not possible to explain the sterol profile of testis in cAMP responsive element modulator tau (Crem τ) knockout mice with mathematical models based on textbook pathways of cholesterol synthesis. Our model differs in the inclusion of virtual sterol metabolizing enzymes branching from the pathway...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27256343/pathways-and-gene-networks-mediating-the-regulatory-effects-of-cannabidiol-a-nonpsychoactive-cannabinoid-in-autoimmune-t-cells
#17
Ewa Kozela, Ana Juknat, Fuying Gao, Nathali Kaushansky, Giovanni Coppola, Zvi Vogel
BACKGROUND: Our previous studies showed that the non-psychoactive cannabinoid, cannabidiol (CBD), ameliorates the clinical symptoms in mouse myelin oligodendrocyte glycoprotein (MOG)35-55-induced experimental autoimmune encephalomyelitis model of multiple sclerosis (MS) as well as decreases the memory MOG35-55-specific T cell (TMOG) proliferation and cytokine secretion including IL-17, a key autoimmune factor. The mechanisms of these activities are currently poorly understood. METHODS: Herein, using microarray-based gene expression profiling, we describe gene networks and intracellular pathways involved in CBD-induced suppression of these activated memory TMOG cells...
2016: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/27234251/effects-of-fluoride-on-expression-of-p450-crem-and-act-proteins-in-rat-testes
#18
Jianhai Zhang, Yuchen Zhu, Chen Liang, Mingli Qie, Ruiyan Niu, Zilong Sun, Jinming Wang, Jundong Wang
Fluoride (F) is an essential trace element that humans and animals ingest from water, air, and fluoride-containing products; however, excessive fluoride absorption can damage a variety of organs and tissues, including the male reproductive system. Our previous studies found that fluoride exposure lowered sperm quality and interfered with spermatogenesis; however, the exact mechanism remained unclear. Proteins cytochrome P450 (P450), cAMP-responsive element modulator (CREM), and activator of CREM in testis (ACT) play the key roles in spermatogenesis and sperm motility...
May 27, 2016: Biological Trace Element Research
https://www.readbyqxmd.com/read/27150575/creb1-regulates-late-stage-mammalian-lung-development-via-respiratory-epithelial-and-mesenchymal-independent-mechanisms
#19
N Antony, A R McDougall, T Mantamadiotis, T J Cole, A D Bird
During mammalian lung development, the morphological transition from respiratory tree branching morphogenesis to a predominantly saccular architecture, capable of air-breathing at birth, is dependent on physical forces as well as molecular signaling by a range of transcription factors including the cAMP response element binding protein 1 (Creb1). Creb1(-/-) mutant mice exhibit complete neonatal lethality consistent with a lack of lung maturation beyond the branching phase. To further define its role in the developing mouse lung, we deleted Creb1 separately in the respiratory epithelium and mesenchyme...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27002482/coral-inspired-nanoengineering-design-for-long-cycle-and-flexible-lithium-ion-battery-anode
#20
Yangyong Sun, Cheng Wang, Yinghui Xue, Qin Zhang, Rafael G Mendes, Linfeng Chen, Tao Zhang, Thomas Gemming, Mark H Rümmeli, Xinping Ai, Lei Fu
Conversion reaction electrode materials (CREMs) have gained significant interest in lithium-ion batteries (LIBs) owing to their high theoretical gravimetric capacity. However, traditional CREMs-based electrodes, with large strain arising from Li(+) intercalation/deintercalation causes pulverization or electrical breakdown and cracking of the active materials which leads to structural collapse, limiting performance. Therefore, in order to construct electrodes with a strong tolerance to the strain incurred during the conversion reaction process, we design a coral-like three-dimensional (3D) hierarchical heterostructure by using cross-linked nanoflakes interspersed with nanoparticles (NPs) standing vertically on graphene foam (GF)...
April 13, 2016: ACS Applied Materials & Interfaces
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