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https://www.readbyqxmd.com/read/28823142/oncogenes-mitochondrial-metabolism-and-quality-control-in-differentiated-thyroid-cancer
#1
Hyon-Seung Yi, Joon Young Chang, Koon Soon Kim, Minho Shong
Thyroid cancer is one of the most common malignancies of endocrine organs, and its incidence rate has increased steadily over the past several decades. Most differentiated thyroid tumors derived from thyroid epithelial cells exhibit slow-growing cancers, and patients with these tumors can achieve a good prognosis with surgical removal and radioiodine treatment. However, a small proportion of patients present with advanced thyroid cancer and are unusually resistant to current drug treatment modalities. Thyroid tumorigenesis is a complex process that is regulated by the activation of oncogenes, inactivation of tumor suppressors, and alterations in programmed cell death...
August 22, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28823136/identification-of-polymorphisms-in-mitf-and-dct-genes-and-their-associations-with-plumage-colors-in-asian-duck-breeds
#2
Hasina Sultana, Dongwon Seo, Nu-Ri Choi, Md Shamsul Alam Bhuiyan, Seung Hwan Lee, Kang Nyeong Heo, Jun Heon Lee
Objective: The aim of this study was to investigate the effect of single nucleotide polymorphisms (SNPs) of the MITF and DCT genes on plumage coloration in Asian native duck breeds. MITF encodes a protein for microphthalmia-associated transcription factor, which regulates the development and function of melanocytes for pigmentation of skin, hair, and eyes. Among the tyrosinase-related family genes, dopachrome tautomerase (DCT) is a pigment cell-specific gene that plays important roles in the melanin synthesis pathway and the expression of skin, feather, and retina color...
August 16, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28823121/characterization-of-the-porcine-nanog-5-flanking-region
#3
Azra Memon, Ki-Duk Song, Woon Kyu Lee
Objective: Nanog, a homeodomain protein, has been investigated in humans and mice using ESCs. Because of the limited availability of ESCs, few studies have reported the function and role of Nanog in porcine ESCs. Therefore, in this study, we investigated the location of the porcine Nanog chromosome and its basal promoter activity, which might have potential applications in development of ESs specific marker as well as understanding its operating systems in the porcine. Methods: To characterize the porcine Nanog promoter, the 5'-flanking region of Nanog was isolated from cells of mini-pig ears...
August 16, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28823088/electrical-signals-triggered-controllable-formation-of-calcium-alginate-film-for-wound-treatment
#4
Xiaoli Liu, Huan Liu, Xue Qu, Miao Lei, Chuchu Zhang, Hua Hong, Gregory F Payne, Changsheng Liu
Wound dressings play important roles in the management of wounds, and calcium cross-linked alginate (Ca(2+)-Alg) is a commonly used hydrogel that is adapted for wound treatment. However, conventional methods for fabricating Ca(2+)-Alg hydrogels can be tedious and difficult to control because of the rapid Ca(2+)-induced gelation of alginate. In this study, An electrodeposition method was used to rapidly and controllably fabricate Ca(2+)-Alg films for wound treatment. Several measures of film growth (e.g., thickness and mass) are shown to linearly correlate to the imposed charge transfer at the electrode...
August 19, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28823021/control-by-low-levels-of-calcium-of-mammalian-cell-membrane-electropermeabilization
#5
Ciobanu Florin, Golzio Muriel, Kovacs Eugenia, Teissié Justin
Electric pulses, when applied to a cell suspension, induce a reversible permeabilization of the plasma membrane. This permeabilized state is a long-lived process (minutes). The biophysical molecular mechanisms supporting the membrane reorganization associated to its permeabilization remain poorly understood. Modeling the transmembrane structures as toroidal lipidic pores cannot explain why they are long-lived and why their resealing is under the control of the ATP level. Our results describe the effect of the level of free Calcium ions...
August 20, 2017: Journal of Membrane Biology
https://www.readbyqxmd.com/read/28822989/cellular-prion-protein-enhances-drug-resistance-of-colorectal-cancer-cells-via-regulation-of-a-survival-signal-pathway
#6
Jun Hee Lee, Chul Won Yun, Sang Hun Lee
Anti-cancer drug resistance is a major problem in colorectal cancer (CRC) research. Although several studies have revealed the mechanism of cancer drug resistance, molecular targets for chemotherapeutic combinations remain elusive. To address this issue, we focused on the expression of cellular prion protein (PrP(C)) in 5-FU-resistant CRC cells. In 5-FU-resistant CRC cells, PrP(C) expression is significantly increased, compared with that in normal CRC cells. In the presence of 5-FU, PrP(C) increased CRC cell survival and proliferation by maintaining the activation of the PI3K-Akt signaling pathway and the expression of cell cycle-associated proteins, including cyclin E, CDK2, cyclin D1, and CDK4...
August 21, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28822986/insights-in-pathogenesis-of-multiple-sclerosis-nitric-oxide-may-induce-mitochondrial-dysfunction-of-oligodendrocytes
#7
Minghong Lan, Xiaoyi Tang, Jie Zhang, Zhongxiang Yao
Demyelinating diseases, such as multiple sclerosis (MS), are kinds of common diseases in the central nervous system (CNS), and originated from myelin loss and axonal damage. Oligodendrocyte dysfunction is the direct reason of demyelinating lesions in the CNS. Nitric oxide (NO) plays an important role in the pathological process of demyelinating diseases. Although the neurotoxicity of NO is more likely mediated by peroxynitrite rather than NO itself, NO can impair oligodendrocyte energy metabolism through mediating the damaging of mitochondrial DNA, mitochondrial membrane and mitochondrial respiratory chain complexes...
August 21, 2017: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/28822973/pai-1-levels-are-related-to-insulin-resistance-and-carotid-atherosclerosis-in-subjects-with-familial-combined-hyperlipidemia
#8
Arturo Carratala, Sergio Martinez-Hervas, Enrique Rodriguez-Borja, Esther Benito, José T Real, Guillermo T Saez, Rafael Carmena, Juan F Ascaso
Familial combined hyperlipidemia (FCH) is a primary atherogenic dyslipidemia with insulin resistance and increased cardiovascular risk. Plasminogen activator inhibitor type 1 (PAI-1) and myeloperoxidase (MPO) activity are associated with proinflammatory and atherothrombotic risk. Our aim was to study the role played by PAI-1 and MPO activity in the carotid atherosclerosis prevalence in FCH subjects. 36 FCH unrelated subjects (17 women) were matched by age and body weight with 36 healthy normolipidemic subjects (19 female)...
August 19, 2017: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/28822954/the-variability-of-hepatitis-b-envelope-is-associated-with-hbs-antigen-persistence-in-either-chronic-or-acute-hbv-genotype-a-infection
#9
Marine Eschlimann, Brice Malvé, Aurélie Velay, Honorine Fenaux, Sibel Berger, Jean-Pol Frippiat, Fabien Zoulim, Mouni Bensenane, Jean-Pierre Bronowicki, François Goehringer, Thierry May, Hélène Jeulin, Evelyne Schvoerer
BACKGROUND: More than 240 million people are chronically infected by hepatitis B virus (HBV) worldwide. Envelope proteins play a crucial role in viral cellular entry and immune recognition. The loss of HBs antigen (HBsAg) correlated with a good clinical prognosis is rarely achieved with or without treatment (3-16%). OBJECTIVES: HBV envelope variability was investigated according to HBsAg persistence. STUDY DESIGN: The cohort consisted of 15 HBV genotype A-infected patients divided into "resolvers", with HBsAg clearance, and "non-resolvers", with HBsAg persistence and in subgroups: acute (n=5, AHBV) or chronic infection (n=4, CHBV) and HBV/HIV coinfection (n=6, CHBV/HIV)...
August 5, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28822948/bacterial-and-archaeal-community-distribution-and-stabilization-of-anaerobic-sludge-in-a-strengthen-circulation-anaerobic-sca-reactor-for-municipal-wastewater-treatment
#10
Bo Yang, Hui Xu, Junfeng Wang, Xinshan Song, Yuhui Wang, Fang Li, Qing Tian, Chunyan Ma, Daoyuan Wang, Junhong Bai, Wolfgang Sand
In this study, a SCA reactor was employed for municipal wastewater treatment at a mesophilic temperature (30°C) under different hydraulic retention times (HRT) and upflow velocities (Vup) to investigate granule sludge stability and spatial microbial distribution. The stable COD removal efficiency readied at HRT of 15, 12, 9 and 6h, and Vup ranging from 0.6 to 5.9mh(-1). EPS fraction analysis of granule sludge shows that municipal wastewater was mainly attributed to the enrichment influence of polysaccharide and tightly bound-EPS...
August 10, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28822897/callous-unemotional-behaviors-in-early-childhood-the-development-of-empathy-and-prosociality-gone-awry
#11
REVIEW
Rebecca Waller, Luke W Hyde
Callous-unemotional (CU) behaviors are critical to understanding the development of severe forms of aggression and antisocial behavior. CU behaviors include deficits in empathy and prosocial behavior, as well as reduced interpersonal responsivity to others. We review recent research examining CU behaviors in early childhood and the role that parents play in the development of early CU behaviors. We integrate research on the development of empathy and prosociality with that of CU behaviors to propose a developmental model of early CU behaviors that considers person-by-context interactions...
August 5, 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28822868/preliminary-profiling-of-microrna-in-the-normal-and-regenerating-liver-of-chiloscyllium-plagiosum
#12
Dandan Cheng, Yanna Chen, Conger Lu, Yuezhong Qian, Zhengbing Lv
Liver is a vital organ present in animals for detoxification, protein synthesis, digestion and other functions and its powerful regenerative capacity is well known. C. plagiosum is an abundant fish that is representative of the cartilaginous class in the southeast coastal region of China and its liver accounts for >70% of the fish's visceral weight and contains many bioactive substances. MicroRNAs (microRNAs) play important roles in a wide range of biological processes in eukaryotes, including cell proliferation, differentiation, apoptosis...
July 27, 2017: Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics
https://www.readbyqxmd.com/read/28822853/intrauterine-and-lactation-exposure-to-fluoxetine-blunted-in-the-offspring-the-aortic-adaptive-response-induced-by-acute-restraint-stress
#13
Bruno V D Marques, Carolina M Higashi, Daniella R B da S Novi, Nagela G Zanluqui, Thais F Gregório, Phileno Pinge-Filho, Daniela C C Gerardin, Gislaine P Gomes, Estefânia G Moreira, Graziela S Ceravolo
Selective serotonin reuptake inhibitors are the most widely prescribed antidepressants to women during pregnancy. Maternal treatment with fluoxetine can expose fetuses and neonates to higher levels of serotonin that plays a role in stress response. Thus, the aim of the study was to evaluate whether maternal treatment with fluoxetine interferes with aorta reactivity of adult male offspring after acute restraint stress. Wistar rats were gavaged with fluoxetine (5mg/kg/day) or water (control) during pregnancy and lactation...
August 16, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28822847/intestinal-adaptations-following-bariatric-surgery-towards-the-identification-of-new-pharmacological-targets-for-obesity-related-metabolic-diseases
#14
REVIEW
Lara Ribeiro-Parenti, Jean-Baptiste Cavin, Maude Le Gall
Although the gastrointestinal tract is the primary target of bariatric surgery, its contributions to the metabolic changes observed after surgery are still underestimated. Changes in the number of incretin-producing cells could result in the modified hormonal response seen after surgery. Additionally, the rate of absorption and consumption of glucose could contribute to the ameliorated glycaemia. Moreover, decreased intestinal permeability could prevent endotoxemia. Recently, numerous studies have focused on intestinal adaptation following bariatric surgeries...
August 17, 2017: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/28822840/role-of-adp-ribosylation-factor6-cytohesin1-phospholipased-signaling-axis-in-u46619-induced-activation-of-nadph-oxidase-in-pulmonary-artery-smooth-muscle-cell-membrane
#15
Sajal Chakraborti, Jaganmay Sarkar, Animesh Chowdhury, Tapati Chakraborti
Treatment of human pulmonary artery smooth muscle cells (HPASMCs) with the thromboxane A2 receptor antagonist, SQ29548 inhibited U46619 stimulation of phospholipase D (PLD) and NADPH oxidase activities in the cell membrane. Pretreatment with apocynin inhibited U46619 induced increase in NADPH oxidase activity. The cell membrane contains predominantly PLD2 along with PLD1 isoforms of PLD. Pretreatment with pharmacological and genetic inhibitors of PLD2, but not PLD1, attenuated U46619 stimulation of NADPH oxidase activity...
August 16, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28822831/ifna-as1-regulates-cd4-t-cell-activation-in-myasthenia-gravis-though-hla-drb1
#16
Mengchuan Luo, Xiaofang Liu, Huanyu Meng, Liqun Xu, Yi Li, Zhibin Li, Chang Liu, Yuebei Luo, Bo Hu, Yuanyuan Xue, Yu Liu, Zhaohui Luo, Huan Yang
Abnormal CD4(+)T cell activation is known to play roles in the pathogenesis of myasthenia gravis (MG). However, little is known about the mechanisms underlying the roles of lncRNAs in regulating CD4(+) cell. In this study, we discovered that the lncRNA IFNG-AS1 is abnormally expressed in MG patients associated with quantitative myasthenia gravis (QMG) and the positive anti-AchR Ab levels patients. IFNG-AS1 influenced Th1/Treg cell proliferation and regulated the expression levels of their transcription factors in an experimental autoimmune myasthenia gravis (EAMG)model...
August 16, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28822825/comparison-of-transforaminal-lumbar-interbody-fusion-outcomes-in-patients-receiving-rhbmp-2-versus-autograft
#17
Taleef R Khan, Kalin R Pearce, Steven J McAnany, Colleen M Peters, Munish C Gupta, Lukas P Zebala
BACKGROUND CONTEXT: Recombinant human bone morphogenetic protein 2 (rhBMP-2) plays a pivotal role in complex spine surgery. Despite its limited approval, the off-label use of rhBMP-2 is prevalent, particularly in transforaminal lumbar interbody fusions (TLIF) PURPOSE: To determine the effectiveness and safety of rhBMP-2 use in TLIF procedures versus autograft. STUDY DESIGN: Retrospective Cohort Study PATIENT SAMPLE: Patients older than 18 years undergoing spine surgery for lumbar degenerative spine disease at a single academic institution...
August 16, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28822821/what-makes-journal-club-effective-a-survey-of-orthopaedic-residents-and-faculty
#18
Sean T Campbell, Jason R Kang, Julius A Bishop
BACKGROUND: Journal clubs play an important role in the education of orthopaedic surgery residents; however, there are sparse data available on the characteristics that make journal clubs effective. OBJECTIVE: The primary goal of this study was to determine the characteristics of effective journal clubs as identified by orthopaedic residents and faculty. We sought to compare the opinions of residents and faculty in order to identify areas that may benefit from future research and discussion...
August 16, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28822808/bml-111-equilibrated-ace-angii-at1r-and-ace2-ang-1-7-mas-axis-to-protect-hepatic-fibrosis-in-rats
#19
Quandong Hu, Zhenzhen Hu, Qiongfeng Chen, Yonghong Huang, Zi Mao, Fangyun Xu, Xiaoyan Zhou
BACKGROUND: It was recently reported Lipoxins (LXs) had protective effects on fibrous diseases, and renin-angiotensin-aldosterone system (RAAS) had played vital and bidirectional roles in hepatic fibrosis. In this paper, a hepatic fibrosis model, induced by carbon tetrachloride (CCL4) in rats, was used to observe the relations between RAAS and LXs, as well as to further explore the alternative anti-fibrosis mechanisms of LXs. METHODS: The model was evaluated by morphological observations and biochemical assays...
August 16, 2017: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/28822798/meaning-in-life-as-a-mediator-between-physical-impairment-and-the-wish-to-hasten-death-in-patients-with-advanced-cancer
#20
Mariona Guerrero-Torrelles, Cristina Monforte-Royo, Joaquín Tomás-Sábado, Frederic Marimon, Josep Porta-Sales, Albert Balaguer
CONTEXT: Meaning in life (MiL) is a key factor for ensuring spiritual wellbeing and quality of life among patients with life-threatening illnesses. However, the role of MiL in relation to the wish to hasten death (WTHD) and its interaction with other physical and psychological factors in patients with advanced cancer has not yet been studied. OBJECTIVE: To analyse the relationship between the WTHD and MiL, and to propose a theoretical model of functional relationships between WTHD, performance status, depression and MiL...
August 16, 2017: Journal of Pain and Symptom Management
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