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https://www.readbyqxmd.com/read/28527383/tributyltin-and-triphenyltin-exposure-promotes-in-vitro-adipogenic-differentiation-but-alters-the-adipocyte-phenotype-in-rainbow-trout
#1
Esmail Lutfi, Natàlia Riera-Heredia, Marlon Córdoba, Cinta Porte, Joaquim Gutiérrez, Encarnación Capilla, Isabel Navarro
Numerous environmental pollutants have been identified as potential obesogenic compounds affecting endocrine signaling and lipid homeostasis. Among them, well-known organotins such as tributyltin (TBT) and triphenyltin (TPT), can be found in significant concentrations in aquatic environments. The aim of the present study was to investigate in vitro the effects of TBT and TPT on the development and lipid metabolism of rainbow trout (Onchorynchus mykiss) primary cultured adipocytes. Results showed that TBT and TPT induced lipid accumulation and slightly enhanced peroxisome proliferator-activated receptor gamma (PPARγ) and CCAAT enhancer binding protein alpha (C/EBPα) protein expression when compared to a control, both in the presence or absence of lipid mixture...
May 8, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28527335/dissection-of-cis-regulatory-element-architecture-of-the-rice-oleosin-gene-promoters-to-assess-abscisic-acid-responsiveness-in-suspension-cultured-rice-cells
#2
Sol Kim, Soo-Bin Lee, Chae-Seong Han, Mi-Na Lim, Sung-Eun Lee, In Sun Yoon, Yong-Sic Hwang
Oleosins are the most abundant proteins in the monolipid layer surrounding neutral storage lipids that form oil bodies in plants. Several lines of evidence indicate that they are physiologically important for the maintenance of oil body structure and for mobilization of the lipids stored inside. Rice has six oleosin genes in its genome, the expression of all of which was found to be responsive to abscisic acid (ABA) in our examination of mature embryo and aleurone tissues. The 5'-flanking region of OsOle5 was initially characterized for its responsiveness to ABA through a transient expression assay system using the protoplasts from suspension-cultured rice cells...
May 1, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28527294/activation-of-hypoxia-signaling-in-stromal-progenitors-impairs-kidney-development
#3
Katharina Gerl, Dominik Steppan, Michaela Fuchs, Charlotte Wagner, Carsten Willam, Armin Kurtz, Birgül Kurt
Intrauterine hypoxia is a reason for impaired kidney development. The cellular and molecular pathways along which hypoxia exerts effects on nephrogenesis are not well understood. They are likely triggered by hypoxia-inducible transcription factors (HIFs), and their effects appear to be dependent on the cell compartment contributing to kidney formation. In this study, we investigated the effects of HIF activation in the developing renal stroma, which also essentially modulates nephron development from the metanephric mesenchyme...
May 17, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28527110/a-review-of-the-hemodynamic-factors-believed-to-contribute-to-vascular-access-dysfunction
#4
Connor V Cunnane, Eoghan M Cunnane, Michael T Walsh
A vascular access (VA) is used to facilitate hemodialysis in patients that suffer from end-stage renal disease. However, they suffer from high failure rates due to non-maturation and venous stenosis, with intimal hyperplasia (IH) the underlying cause of both conditions. Abnormal hemodynamic profiles, which arise following VA creation, are believed to lead to the development of IH. However, the exact physiological response that initiates this process is unknown. This review evaluates the different hemodynamic parameters that are hypothesised to correlate with the development of IH...
May 19, 2017: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/28526951/pyrocincholic-acid-3%C3%AE-o-%C3%AE-d-quinovopyranosyl-28-o-%C3%AE-d-glucopyranoside-suppresses-adipogenesis-and-regulates-lipid-metabolism-in-3t3-l1-adipocytes
#5
Li Peng, Yanting Lu, Yuhui Xu, Jing Hu, Fang Wang, Yumei Zhang, Wenyong Xiong
Obesity is crucially involved in many metabolic diseases, such as type 2 diabetes, cardiovascular disease and cancer. Regulating the number or size of adipocytes has been suggested to be a potential treatment for obesity. In this study, we investigated the effect of pyrocincholic acid 3β-O-β-D-quinovopyranosyl-28-O-β-D-glucopyranoside (PAQG), a 27-nor-oleanolic acid saponin extracted from Metadina trichotoma, on adipogenesis and lipid metabolism in 3T3-L1 adipocytes. The 3T3-L1 pre-adipocytes were incubated with vehicle or PAQG for 6 days in differentiation process...
May 19, 2017: Natural Products and Bioprospecting
https://www.readbyqxmd.com/read/28526924/effects-of-water-ph-on-life-history-parameters-of-a-new-bosminid-cladocera-bosmina-bosmina-tripurae-korinek-saha-and-bhattachaya-1999-in-laboratory-condition
#6
Himadri Saha, K S Wisdom, Asem Lembika Devi, Da-U-Ruhi Pde, Sukham Tuni Devi, Makamguang Kamei, Anamika Biswas, Ratan K Saha, Prasenjit Pal
The effects of water pH on life history parameters of Bosmina tripurae have been studied to determine the most suitable water pH desired for the maximum growth and development of this newly discovered cladoceran species. The study was carried out under the laboratory condition at 20 ± 2°C. Five pH ranges 5.0 ± 0.2, 6.0 ± 0.2, 7.0 ± 0.2, 8.0 ± 0.2 and 9.0 ± 0.2 with six replicates for each pH consisting of one animal in each Petri dish (80 × 15 mm) were used for the study...
May 19, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28526755/the-matrix-protein-tiggrin-regulates-plasmatocyte-maturation-in-drosophila-larva
#7
Chen U Zhang, Ken M Cadigan
The lymph gland (LG) is a major source of hematopoiesis during Drosophila development. In this tissue, prohemocytes differentiate into multiple lineages including macrophage-like plasmatocytes, which comprise the vast majority of mature hemocytes. Previous studies have uncovered genetic pathways that regulate prohemocyte maintenance and some cell fate choices between hemocyte lineages. However, less is known about how the plasmatocyte pool of the LG is established and matures. Here we report that Tiggrin, a matrix protein expressed in the LG, is a specific regulator of plasmatocyte maturation...
May 19, 2017: Development
https://www.readbyqxmd.com/read/28526652/retinoic-acid-induces-differentiation-of-buffalo-bubalus-bubalis-embryonic-stem-cells-into-germ-cells
#8
Syed Mohmad Shah, Suresh Kumar Singla, Prabhat Palta, Radhey Sham Manik, Manmohan Singh Chauhan
Development of precise and reproducible culture system for in vitro differentiation of embryonic stem (ES) cells into germ cells counts as a major leap forward for understanding not only the remarkable process of gametogenesis, otherwise obscured by limited availability of precursor primordial germ cells (PGCs), but in finally treating the catastrophic infertility. Taking into account the significant role of retinoic acid (RA) during in vivo gametogenesis, we designed the present study to investigate the effects of its stimulation on directing the differentiation of ES cells into germ cells...
May 16, 2017: Gene
https://www.readbyqxmd.com/read/28526601/model-based-precision-dosing-of-sirolimus-in-pediatric-patients-with-vascular-anomalies
#9
Tomoyuki Mizuno, Chie Emoto, Tsuyoshi Fukuda, Adrienne M Hammill, Denise M Adams, Alexander A Vinks
Sirolimus is the first drug to show efficacy in the treatment of patients with complicated vascular anomalies. The current study expands on the evolution of a PK model-based strategy for the precision dosing of sirolimus as part of prospective concentration controlled clinical trials in pediatric patients with vascular anomalies. Twelve month follow up data collected from 52 pediatric patients participating in the Phase 2 clinical trial were analyzed. Target attainment across the age range of 3weeks to 18years after 2-3months of therapy was 94% (49 out of 52 patients)...
May 16, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28526555/modeling-psychomotor-retardation-using-ipscs-from-mct8-deficient-patients-indicates-a-prominent-role-for-the-blood-brain-barrier
#10
Gad D Vatine, Abraham Al-Ahmad, Bianca K Barriga, Soshana Svendsen, Ariel Salim, Leslie Garcia, Veronica J Garcia, Ritchie Ho, Nur Yucer, Tongcheng Qian, Ryan G Lim, Jie Wu, Leslie M Thompson, Weston R Spivia, Zhaohui Chen, Jennifer Van Eyk, Sean P Palecek, Samuel Refetoff, Eric V Shusta, Clive N Svendsen
Inactivating mutations in the thyroid hormone (TH) transporter Monocarboxylate transporter 8 (MCT8) cause severe psychomotor retardation in children. Animal models do not reflect the biology of the human disease. Using patient-specific induced pluripotent stem cells (iPSCs), we generated MCT8-deficient neural cells that showed normal TH-dependent neuronal properties and maturation. However, the blood-brain barrier (BBB) controls TH entry into the brain, and reduced TH availability to neural cells could instead underlie the diseased phenotype...
May 8, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/28526530/insights-into-the-early-stage-of-pinus-nigra-arn-somatic-embryogenesis-using-discovery-proteomics
#11
Katarína Klubicová, Lubica Uvácková, Maksym Danchenko, Peter Nemecek, Ludovít Skultéty, Ján Salaj, Terézia Salaj
The somatic embryogenesis in conifers represents a suitable model of plant regeneration system facilitating studies of fundamental aspects of an early development as well as in vitro micropropagation. The aim of our study was to deeper understand the somatic embryogenesis in the conifer tree Pinus nigra Arn. Comparative proteomic analysis based on 2D-PAGE in 1) proliferating embryogenic tissues (E) initiated from immature zygotic embryos, 2) non-embryogenic calli (NEC) initiated from cotyledons of somatic seedlings of the same genotypes, 3) embryogenic tissues that lost the maturation capacity (E-L) of two cell lines (E362, E366)...
May 16, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28526326/effects-on-the-reproductive-system-of-young-male-rats-of-subcutaneous-exposure-to-n-butylparaben
#12
Tania Garcia, Elga Schreiber, Vikas Kumar, Raju Prasad, Juan J Sirvent, Jose L Domingo, Mercedes Gómez
This study was aimed at determining whether an in vivo subcutaneous exposure to n-butylparaben (n-ButP) during one complete spermatogenic cycle could be harmful to the reproductive system of young male rats. Animals were subcutaneously given 0, 150, 300 and 600 mg/kg/day of n-ButP with vehicle (peanut oil). Body and organ weights, n-ButP excretion, biochemical parameters, sperm and spermatid count, sperm motility, viability, maturity and morphology were examined. Results showed that after a completed spermatogenic cycle, although n-ButP did not induce dose-related changes in the different biochemical parameters, a significant decrease of triacylglicerides (TAG) -due to the vehicle-was found...
May 16, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28526138/gata-factors-master-regulators-of-gene-expression-in-trophoblast-progenitors
#13
Soumen Paul, Pratik Home, Bhaswati Bhattacharya, Soma Ray
Mammalian reproduction is critically dependent on trophoblast cells, which ensure embryo implantation and placentation. Development of trophoblast cell lineages is a multi-step process and relies upon proper spatial and temporal gene expression, which is regulated by multiple transcription factors. However, most of the transcription factors that are implicated in trophoblast development regulate gene expression at a specific developmental stage or in a specific trophoblast subtype. In contrast, recent studies from our group and other laboratories indicate that conserved GATA family of transcription factors, GATA2 and GATA3, are important to regulate gene expression at multiple stages of trophoblast development...
May 10, 2017: Placenta
https://www.readbyqxmd.com/read/28526116/allelopathic-interactions-between-the-macroalga-hizikia-fusiformis-harvey-and-the-harmful-blooms-forming-dinoflagellate-karenia-mikimotoi
#14
Zengling Ma, Mingjiang Wu, Lidong Lin, Ronald W Thring, Hengguo Yu, Xu Zhang, Min Zhao
The effects of algal blooms on seaweeds have been rarely studied, although harmful algal blooms (HABs) are now normally regarded as worldwide incidents. In the present study, the effects of dense Karenia mikimotoi cells on the growth and photosynthesis of Hizikia fusiformis, a common and commercially cultivated macroalga in coastal waters of the East China Sea (ECS), were studied to understand the possible consequences when the mariculture encountered a dense harmful algal bloom. Furthermore, the counteraction of the latter on the growth and photosynthetic activities of K...
May 2017: Harmful Algae
https://www.readbyqxmd.com/read/28526088/assessment-of-parasitological-findings-in-heartworm-infected-beagles-treated-with-advantage-multi%C3%A2-for-dogs-10-imidacloprid%C3%A2-%C3%A2-2-5-moxidectin-and-doxycycline
#15
Molly D Savadelis, Cameon M Ohmes, Joe A Hostetler, Terry L Settje, Robert Zolynas, Michael T Dzimianski, Andrew R Moorhead
BACKGROUND: Anecdotal reports support the position that the adulticidal heartworm treatment utilizing doxycycline and Advantage Multi®/Advocate® for Dogs (10% imidacloprid + 2.5% moxidectin) has successfully converted antigen-positive dogs to antigen-negative. To date, no controlled experimental studies have demonstrated the adulticidal efficacy of this treatment regimen. The aim of this study was to evaluate the parasitological and clinical efficacy of Advantage Multi® for Dogs (IMD + MOX) and doxycycline in heartworm-infected beagles...
May 19, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28526032/multiplex-dnase-free-one-step-reverse-transcription-pcr-for-plasmodium-18s-rrna-and-spliced-gametocyte-specific-mrnas
#16
Amelia E Hanron, Zachary P Billman, Annette M Seilie, Tayla M Olsen, Matthew Fishbaugher, Ming Chang, Thomas Rueckle, Nicole Andenmatten, Bryan Greenhouse, Emmanuel Arinaitwe, John Rek, Smita Das, Gonzalo J Domingo, Kelly Shipman, Stefan H Kappe, James G Kublin, Sean C Murphy
BACKGROUND: Plasmodium gametocytes are sexual stages transmitted to female Anopheles mosquitoes. While Plasmodium parasites can be differentiated microscopically on Giemsa-stained blood smears, molecular methods are increasingly used because of their increased sensitivity. Molecular detection of gametocytes requires methods that discriminate between asexual and sexual stage parasites. Commonly tested gametocyte-specific mRNAs are pfs25 and pfs230 detected by reverse transcription polymerase chain reaction (RT-PCR)...
May 19, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28526022/a-descriptive-cross-sectional-study-of-medical-student-preferences-for-vodcast-design-format-and-pedagogical-approach
#17
Robin K Pettit, Marjorie Kinney, Lise McCoy
BACKGROUND: Vodcasts (video podcasts) are becoming increasingly popular in medical education. At A.T. Still University School of Osteopathic Medicine in Arizona (ATSU SOMA), vodcasts are an essential component of our blended learning environment, where year 2-4 students train in a contextual setting at community health centers across the U.S. Vodcasts are used far less frequently in our year 1 residential learning environment at the main campus in Arizona, but we are considering moving to significantly more interactive educational experiences with on-demand videos followed by in-class activities...
May 19, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/28525970/the-immunoregulatory-role-of-alpha-enolase-in-dendritic-cell-function-during-chlamydia-infection
#18
Khamia Ryans, Yusuf Omosun, Danielle N McKeithen, Tankya Simoneaux, Camilla C Mills, Nathan Bowen, Francis O Eko, Carolyn M Black, Joseph U Igietseme, Qing He
BACKGROUND: We have previously reported that interleukin-10 (IL-10) deficient dendritic cells (DCs) are potent antigen presenting cells that induced elevated protective immunity against Chlamydia. To further investigate the molecular and biochemical mechanism underlying the superior immunostimulatory property of IL-10 deficient DCs we performed proteomic analysis on protein profiles from Chlamydia-pulsed wild-type (WT) and IL-10(-/-) DCs to identify differentially expressed proteins with immunomodulatory properties...
May 19, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28525837/differentially-expressed-jak-stat-signaling-pathway-genes-and-target-micrornas-in-the-spleen-of-necrotic-enteritis-afflicted-chicken-lines
#19
Anh Duc Truong, Deivendran Rengaraj, Yeojin Hong, Cong Thanh Hoang, Yeong Ho Hong, Hyun S Lillehoj
The JAK signal transducer and STAT signaling pathway is an important regulator of cell proliferation, differentiation, survival, motility, apoptosis, immune response, and development. In this study, we used RNA-Sequencing, qRT-PCR, and bioinformatics tools to investigate the differential expression of JAK-STAT pathway genes, their interactions, and regulators in the spleen of two genetically disparate chicken lines (Marek's disease-resistant line 6.3 and MD-susceptible line 7.2) induced necrotic enteritis (NE) disease by co-infection with Eimeria maxima and Clostridium perfringens...
May 13, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28525600/a-novel-double-kink-turn-module-in-euryarchaeal-rnase-p-rnas
#20
Lien B Lai, Akiko Tanimoto, Stella M Lai, Wen-Yi Chen, Ila A Marathe, Eric Westhof, Vicki H Wysocki, Venkat Gopalan
RNase P is primarily responsible for the 5΄ maturation of transfer RNAs (tRNAs) in all domains of life. Archaeal RNase P is a ribonucleoprotein made up of one catalytic RNA and five protein cofactors including L7Ae, which is known to bind the kink-turn (K-turn), an RNA structural element that causes axial bending. However, the number and location of K-turns in archaeal RNase P RNAs (RPRs) are unclear. As part of an integrated approach, we used native mass spectrometry to assess the number of L7Ae copies that bound the RPR and site-specific hydroxyl radical-mediated footprinting to localize the K-turns...
May 19, 2017: Nucleic Acids Research
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