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https://www.readbyqxmd.com/read/28214886/adenovirus-vector-harboring-the-hbcag-and-tripeptidyl-peptidase-ii-genes-induces-potent-cellular-immune-responses-in-vivo
#1
Quanhui Tan, Siyuan Ma, Jianjun Hu, Xiaohua Chen, Yongsheng Yu, Zhenghao Tang, Guoqin Zang
BACKGROUND: Chronic hepatitis B virus (HBV) infection is associated with a weak but specific cellular immune response of the host to HBV. Tripeptidyl peptidaseⅡ (TPPⅡ), an intracellular macromolecule and proteolytic enzyme, plays an important complementary and compensatory role for the proteasome during viral protein degradation and major histocompatibility complex class I antigen presentation by inducing a specific cellular immune response in vivo. Based on a previous study, we aimed to explore the role of MHC class I antigen presentation in vivo and the mechanisms that may be involved...
January 27, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214865/inhibition-of-trpc6-signal-pathway-alleviates-podocyte-injury-induced-by-tgf-%C3%AE-1
#2
Haiting Huang, Yanwu You, Xu Lin, Chunrong Tang, Xiangjun Gu, Meiying Huang, Youling Qin, Junhua Tan, Feifan Huang
BACKGROUND/AIMS: Transforming growth factor beta 1 (TGF-β1) plays a critical role in the pathogenesis of glomerulosclerosis. The purpose of this study was to examine the effects of inhibition of transient receptor potential cation channel C6 (TRPC6) on podocyte injury induced by TGF-β1 via nephrin and desmin mechanisms. METHODS: A rat model of nephropathy was first induced by intravenous injections of adriamycin to determine TRPC6 signal pathway engaged in glomerulosclerosis in vivo...
January 18, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214753/structural-and-functional-insights-into-corrinoid-iron-sulfur-protein-from-human-pathogen-clostridium-difficile
#3
Yaozhu Wei, Xiaofei Zhu, Sixue Zhang, Xiangshi Tan
The human pathogen Clostridium difficile infection (CDI) is one of the most important healthcare-associated infections. The Wood-Ljungdahl pathway, which is responsible for Acetyl-CoA biosynthesis, is essential for the survival of the pathogen and is absent in humans. The key proteins and enzymes involved in the pathway are attractive targets for the treatment of CDI. Corrinoid iron-sulfur protein (CoFeSP) is a key protein and acts as a methyl transformer in the Wood-Ljungdahl pathway. In this study, CoFeSP from Clostridium difficile (CoFeSPCd) was cloned, expressed in E...
February 13, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28214439/different-cultivation-methods-to-acclimatise-ammonia-tolerant-methanogenic-consortia
#4
Hailin Tian, Ioannis A Fotidis, Enrico Mancini, Irini Angelidaki
Bioaugmentation with ammonia tolerant-methanogenic consortia was proposed as a solution to overcome ammonia inhibition during anaerobic digestion process recently. However, appropriate technology to generate ammonia tolerant methanogenic consortia is still lacking. In this study, three basic reactors (i.e. batch, fed-batch and continuous stirred-tank reactors (CSTR)) operated at mesophilic (37°C) and thermophilic (55°C) conditions were assessed, based on methane production efficiency, incubation time, TAN/FAN (total ammonium nitrogen/free ammonia nitrogen) levels and maximum methanogenic activity...
February 11, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28214213/the-relationship-between-brafv600e-nf-%C3%AE%C2%BAb-and-tgab-expression-in-papillary-thyroid-carcinoma
#5
Wei Li, Hui Ming, Danyang Sun, Wei Li, Dan Wang, Guizhi Zhang, Jian Tan
PURPOSE: The aim of this study was to investigate the potential link between thyroglobulin antibody (TgAb) titers and papillary thyroid carcinoma (PTC) aggressiveness. MATERIALS AND METHODS: This retrospective study included 122 patients who had undergone total thyroidectomy and neck central area lymph dissection followed by radioactive iodine (RAI) ablation for PTC between July 2012 and July 2014. The parameters included clinical characteristics of PTC, TgAb levels and tumor histopathological characteristics...
January 12, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28213955/the-skin-barrier-function-gene-spink5-is-associated-with-challenge-proven-ige-mediated-food-allergy-in-infants
#6
Sarah E Ashley, Hern-Tze Tina Tan, Peter Vuillermin, Shyamali C Dharmage, Mimi L K Tang, Jennifer Koplin, Lyle C Gurrin, Adrian Lowe, Caroline Lodge, Anne-Louise Ponsonby, John Molloy, Pamela Martin, Melanie C Matheson, Richard Saffery, Katrina J Allen, Justine A Ellis, David Martino
BACKGROUND: A defective skin barrier is hypothesised to be an important route of sensitisation to dietary antigens, and may lead to food allergy in some children. Missense mutations in the Serine peptidase inhibitor kazal type 5 (SPINK5) skin barrier gene have previously been associated with allergic conditions. OBJECTIVE: To determine whether genetic variants in and around SPINK5 are associated with IgE mediated food allergy. METHOD: We genotyped 71 'tag' single nucleotide polymorphisms (tag-SNPs) within a region spanning ~263 kilobases (kb) including SPINK5 (~61kb) in n=722 (n=367 food allergic, n=199 food sensitised, tolerant and n=156 non-food allergic controls) 12-month infants (discovery sample) phenotyped for food allergy with the gold standard oral food challenge (OFC)...
February 18, 2017: Allergy
https://www.readbyqxmd.com/read/28213942/pge2-ep4-attenuated-mucosal-injury-via-%C3%AE-arr1-src-egfr-mediated-proliferation-in-portal-hypertensive-gastropathy
#7
Siwei Tan, Xiaoliang Chen, Minyi Xu, Xiaoli Huang, Huiling Liu, Jie Jiang, Yu Lu, Xiaojie Peng, Bin Wu
BACKGROUND AND PURPOSE: Portal hypertensive gastropathy (PHG) is a serious complication of liver cirrhosis and a potential cause of bleeding in patients associated with cirrhosis. Suppressed mucosal epithelial proliferation is a crucial pathological characteristic of PHG. Our studies demonstrated an important role of prostaglandin E2 (PGE2 ) and its E-type prostanoid 4 (EP4 ) receptor in the promotion of mucosal proliferation. However, whether β-arrestin1 (β-arr1), a well-established mediator of G-protein-coupled receptors (GPCRs), is involved in the PGE2 /EP4 -mediated mucosal proliferation complex in PHG remains unclear...
February 18, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28213589/sh479-a-betulinic-acid-derivative-ameliorates-experimental-autoimmune-encephalomyelitis-by-regulating-the-th17-treg-balance
#8
Jing Li, Ji Jing, Yang Bai, Zhen Li, Roumei Xing, Binhe Tan, Xueyun Ma, Wenwei Qiu, Changsheng Du, Bing Du, Fan Yang, Jie Tang, Stefan Siwko, Mingyao Liu, Huaqing Chen, Jian Luo
CD4+ T helper cells, especially Th17 cells, combined with immune regulatory network dysfunction, play key roles in autoimmune diseases including multiple sclerosis (MS). Betulinic acid (BA), a natural pentacyclic triterpenoid, has been reported to be involved in anti-inflammation, in particular having an inhibitory effect on pro-inflammatory cytokine IL-17 and IFN-γ production. In this study, we screened BA derivatives and found a BA derivative, SH479, which had a greater inhibitory effect on Th17 differentiation...
February 17, 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28213568/estimated-glomerular-filtration-rate-and-albuminuria-are-associated-with-biomarkers-of-cardiac-injury-in-a-population-based-cohort-study-the-maastricht-study
#9
Remy J H Martens, Dorien M Kimenai, Jeroen P Kooman, Coen D A Stehouwer, Frans E S Tan, Otto Bekers, Pieter C Dagnelie, Carla J H van der Kallen, Abraham A Kroon, Karel M L Leunissen, Frank M van der Sande, Nicolaas C Schaper, Simone J S Sep, Miranda T Schram, Jeroen D van Suijlen, Marja P van Dieijen-Visser, Steven J R Meex, Ronald M A Henry
BACKGROUND: Chronic kidney disease (CKD) is associated with an increased cardiovascular disease mortality risk. It is, however, less clear at what point in the course from normal kidney function to CKD the association with cardiovascular disease appears. Studying the associations of estimated glomerular filtration rate (eGFR) and albuminuria with biomarkers of (subclinical) cardiac injury in a population without substantial CKD may clarify this issue. METHODS: We examined the cross-sectional associations of eGFR and urinary albumin excretion (UAE) with high-sensitivity cardiac troponin (hs-cTn) T, hs-cTnI, and N-terminal probrain natriuretic-peptide (NT-proBNP) in 3103 individuals from a population-based diabetes-enriched cohort study...
February 17, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28213440/muscle-yap-is-a-regulator-of-neuromuscular-junction-formation-and-regeneration
#10
Kai Zhao, Chengyong Shen, Yisheng Lu, Zhihui Huang, Lei Li, Christopher D Rand, Jinxiu Pan, Xiang-Dong Sun, Zhibing Tan, Hongsheng Wang, Guanglin Xing, Yu Cao, Guoqing Hu, Jiliang Zhou, Wen-Cheng Xiong, Lin Mei
Yes-associated protein (Yap) is a major effector of the Hippo pathway that regulates cell proliferation and differentiation during development and restricts tissue growth in adult animals. However, its role in synapse formation remains poorly understood. In this study, we characterized Yap's role in the formation of neuromuscular junction (NMJ). In HSA-Yap(-/-) mice where Yap was mutated specifically in muscle cells, AChR clusters were smaller and were distributed in a broader region in the middle of muscle fibers, suggesting that muscle Yap is necessary for the size and location of AChR clusters...
February 17, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28213204/a-description-of-an-obesogenic-eating-style-that-promotes-higher-energy-intake-and-is-associated-with-greater-adiposity-in-4-5year-old-children-results-from-the-gusto-cohort
#11
Anna Fogel, Ai Ting Goh, Lisa R Fries, Suresh Anand Sadananthan, S Sendhil Velan, Navin Michael, Mya Thway Tint, Marielle Valerie Fortier, Mei Jun Chan, Jia Ying Toh, Yap-Seng Chong, Kok Hian Tan, Fabian Yap, Lynette P Shek, Michael J Meaney, Birit F P Broekman, Yung Seng Lee, Keith M Godfrey, Mary Foong Fong Chong, Ciarán G Forde
Recent findings confirm that faster eating rates support higher energy intakes within a meal and are associated with increased body weight and adiposity in children. The current study sought to identify the eating behaviours that underpin faster eating rates and energy intake in children, and to investigate their variations by weight status and other individual differences. Children (N=386) from the Growing Up in Singapore towards Healthy Outcomes (GUSTO) cohort took part in a video-recorded ad libitum lunch at 4...
February 14, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28212855/depth-dependent-amino-acid-substitution-matrices-and-its-use-in-predicting-deleterious-mutations
#12
REVIEW
Nida Farheen, Neeladri Sen, Sanjana Nair, Kuan Pern Tan, M S Madhusudhan
The 20 naturally occurring amino acids have different environmental preferences of where they are likely to occur in protein structures. Environments in a protein can be classified by their proximity to solvent by the residue depth measure. Since the frequencies of amino acids are different at various depth levels, the substitution frequencies should vary according to depth. To quantify these substitution frequencies, we built depth dependent substitution matrices. The dataset used for creation of the matrices consisted of 3696 high quality, non redundant pairwise protein structural alignments...
February 14, 2017: Progress in Biophysics and Molecular Biology
https://www.readbyqxmd.com/read/28212813/pigmentation-traits-sun-exposure-and-risk-of-incident-vitiligo-in-women
#13
Rachel Dunlap, Shaowei Wu, Erin Wilmer, Eunyoung Cho, Wen-Qing Li, Newsha Lajevardi, Abrar Qureshi
Vitiligo is the most common cutaneous depigmentation disorder worldwide, yet little is known about specific risk factors for disease development. Utilizing data from the Nurses' Health Study (NHS), a prospective cohort study of 51,337 white women, we examined the associations between (1) pigmentary traits and (2) reactions to sun exposure and risk of incident vitiligo. NHS participants responded to a question about clinician-diagnosed vitiligo and year of diagnosis (2001 or before, 2002-2005, 2006-2009, 2010-2011, or 2012+)...
February 14, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28212689/sleep-complaints-and-sleep-architecture-in-children-with-idiopathic-central-sleep-apnea
#14
Neepa Gurbani, Stijn L Verhulst, Chee Tan, Narong Simakajornboon
STUDY OBJECTIVES: Idiopathic central sleep apnea (ICSA) is categorized as a type of nonhypercapnic central sleep apnea (CSA). Recurrent cessation and resumption of respiration leads to sleep fragmentation, which causes excessive daytime sleepiness, frequent nocturnal awakenings, or both. ICSA has been described in the adult population but there is limited information in children. The purpose of this study was to describe clinical manifestations and polysomnographic findings in children with ICSA...
April 14, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28212615/molecular-pathways-underlying-inhibitory-effect-of-antimicrobial-peptide-nal-p-113-on-bacteria-biofilms-formation-of-porphyromonas-gingivalis-w83-by-dna-microarray
#15
Hong-Yan Wang, Li Lin, Li-Si Tan, Hui-Yuan Yu, Jya-Wei Cheng, Ya-Ping Pan
BACKGROUND: Wound-related infection remains a major challenge for health professionals. One disadvantage in conventional antibiotics is their inability to penetrate biofilms, the main protective strategy for bacteria to evade irradiation. Previously, we have shown that synthetic antimicrobial peptides could inhibit bacterial biofilms formation. RESULTS: In this study, we first delineated how Nal-P-113, a novel antimicrobial peptide, exerted its inhibitory effects on Porphyromonas gingivalis W83 biofilms formation at a low concentration...
February 17, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28212613/porphyromonas-gingivalis-can-invade-periodontal-ligament-stem-cells
#16
Chunling Pan, Junchao Liu, Hongyan Wang, Jia Song, Lisi Tan, Haijiao Zhao
BACKGROUND: Porphyromonas gingivalis is strongly associated with the development, progression, severity and recurrence of periodontitis. Periodontal ligament stem cells (PDLSCs) play an important role in the maintenance of periodontal tissue self-renewal and repair. The purpose of this study was to investigate the ability of P. gingivalis to infect PDLSCs using an in vitro monolayer model. METHODS: We separated and cultured primary PDLSCs using the tissue block with limiting dilution method...
February 17, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28212571/activation-of-jnk-and-ire1-is-critically-involved-in-tanshinone-i-induced-p62-dependent-autophagy-in-malignant-pleural-mesothelioma-cells-implication-of-p62-uba-domain
#17
Jihyun Lee, Eun Jung Sohn, Sangwook Yoon, Gunho Won, Chang Geun Kim, Ji Hoon Jung, Sung-Hoon Kim
The aim of present study is to elucidate autophagic mechanism of tanshinone I (Tan I) in H28 and H2452 mesothelioma cells. Herein, Tan I exerted cytotoxicity with autophagic features of autophagy protein 5 (ATG5)/ microtubule-associated protein 1A/1B-light chain 3II (LC3 II) activation, p62/sequestosome 1 (SQSTM1) accumulation and increased number of LC3II punctae, acridine orange-stained cells and autophagic vacuoles. However, 3-methyladenine (3MA) and NH4Cl increased cytotoxicity in Tan I treated H28 cells...
February 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212409/pathogenic-waterborne-free-living-amoebae-an-update-from-selected-southeast-asian-countries
#18
Mohamad Azlan Abdul Majid, Tooba Mahboob, Brandon G J Mong, Narong Jaturas, Reena Leeba Richard, Tan Tian-Chye, Anusorn Phimphila, Panomphanh Mahaphonh, Kyaw Nyein Aye, Wai Lynn Aung, Joon Chuah, Alan D Ziegler, Atipat Yasiri, Nongyao Sawangjaroen, Yvonne A L Lim, Veeranoot Nissapatorn
Data on the distribution of free-living amoebae is still lacking especially in Southeast Asian region. The aquatic environment revealed a high occurrence of free-living amoebae (FLA) due to its suitable condition and availability of food source, which subsequently causes infection to humans. A total of 94 water samples consisted of both treated and untreated from Laos (31), Myanmar (42), and Singapore (21) were investigated for the presence of pathogenic FLA. Each water sample was filtered and cultured onto non-nutrient agar seeded with live suspension of Escherichia coli and incubated at room temperature...
2017: PloS One
https://www.readbyqxmd.com/read/28212343/oxyresveratrol-supplementation-to-c57bl-6-mice-fed-with-a-high-fat-diet-ameliorates-obesity-associated-symptoms
#19
Hui Yuan Tan, Iris Mei Ying Tse, Edmund Tsze Shing Li, Mingfu Wang
Oxyresveratrol has been proven effective in inhibiting adipogenesis in a 3T3-L1 cell model. We investigated the preventive effect of oxyresveratrol supplementation on obesity development in high-fat diet-fed mice. Male C57bl/6 mice were randomly subjected to control (5% fat by weight, LF), high-fat (30% fat by weight, HF), and high-fat supplemented with 0.25% and 0.5% oxyresveratrol (OXY1 and OXY2, respectively) diet groups for eight weeks. Oxyresveratrol supplementation effectively alleviated obesity-associated symptoms such as insulin resistance, hyperglycemia, and hepatic steatosis in high-fat diet-fed mice...
February 16, 2017: Nutrients
https://www.readbyqxmd.com/read/28212078/demographic-analysis-from-biometric-data-achievements-challenges-and-new-frontiers
#20
Yunlian Sun, Man Zhang, Zhenan Sun, Tieniu Tan
Biometrics is the technique of automatically recognizing individuals based on their biological or behavioral characteristics. Various biometric traits have been introduced and widely investigated, including fingerprint, iris, face, voice, palmprint, gait and so forth. Apart from identity, biometric data may convey various other personal information, covering affect, age, gender, race, accent, handedness, height, weight, etc. Among these, analysis of demographics (age, gender, and race) has received tremendous attention owing to its wide realworld applications, with significant efforts devoted and great progress achieved...
February 14, 2017: IEEE Transactions on Pattern Analysis and Machine Intelligence
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