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https://www.readbyqxmd.com/read/28512061/genetic-variants-in-autophagy-associated-genes-are-associated-with-dna-damage-levels-in-chinese-population
#1
Zhihua Li, Junyi Xin, Weihong Chen, Jia Liu, Meng Zhu, Congwen Zhao, Jing Yuan, Guangfu Jin, Hongxia Ma, Jiangbo Du, Zhibin Hu, Tangchun Wu, Hongbing Shen, Juncheng Dai, Hao Yu
Autophagy associated genes (ATGs) played an important role in the repair process of DNA damage and decreased autophagy may weaken the repair process and aggravate DNA damage. Based on this, we hypothesized that DNA damage levels might be modified by genetic variants in autophagy associated genes. In order to validate our hypothesis, 307 subjects were recruited from three different cities (Zhuhai, Wuhan and Tianjin) in China. Demographic data, individual 24-h PM2.5 exposure and peripheral blood DNA damage levels were also detected...
May 13, 2017: Gene
https://www.readbyqxmd.com/read/28511172/donor-specific-anti-human-leukocyte-antigens-antibodies-acute-rejection-renal-function-and-histology-in-kidney-transplant-recipients-receiving-tacrolimus-and-everolimus
#2
Alexandra Ferreira, Claudia Felipe, Marina Cristelli, Laila Viana, Geovana Basso, Suelen Stopa, Juliana Mansur, Mayara Ivani, Adrieli Bessa, Priscila Ruppel, Wilson Aguiar, Erika Campos, Maria Gerbase-DeLima, Henrique Proença, Helio Tedesco-Silva, José Medina-Pestana
BACKGROUND: This analysis compared efficacy, renal function, and histology in kidney transplant recipients receiving tacrolimus (TAC) combined with everolimus (EVR) or mycophenolate (MPS). METHODS: This was a retrospective analysis from a randomized trial in kidney transplant recipients who received a single 3 mg/kg dose of rabbit antithymocyte globulin (r-ATG), TAC, EVR, and prednisone (PRED; r-ATG/EVR, n = 85), basiliximab (BAS), TAC, EVR, and PRED (BAS/EVR, n = 102) or BAS, TAC, MPS, and PRED (BAS/MPS, n = 101)...
May 17, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28500315/network-and-role-analysis-of-autophagy-in-phytophthora-sojae
#3
Linlin Chen, Xiong Zhang, Wen Wang, Xuejing Geng, Yan Shi, Risong Na, Daolong Dou, Honglian Li
Autophagy is an evolutionarily conserved mechanism in eukaryotes with roles in development and the virulence of plant fungal pathogens. However, few reports on autophagy in oomycete species have been published. Here, we identified 26 autophagy-related genes (ATGs) belonging to 20 different groups in Phytophthora sojae using a genome-wide survey, and core ATGs in oomycetes were used to construct a preliminary autophagy pathway model. Expression profile analysis revealed that these ATGs are broadly expressed and that the majority of them significantly increase during infection stages, suggesting a central role for autophagy in virulence...
May 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28499936/ucbt-without-antithymocyte-globulin-results-in-similar-survival-but-better-quality-of-life-compared-with-upbsct-for-the-treatment-of-acute-leukemia-a-retrospective-study-in-china
#4
J Tong, L Xuan, Y L Sun, D P Huang, H L Liu, C C Zheng, X Y Zhu, B L Tang, K D Song, X H Zhang, L Zhang, W Yao, D J Lin, Q F Liu, Z M Sun
While previous studies have demonstrated improved outcomes in umbilical cord blood transplantation (UCBT) by omitting antithymocyte globulin (ATG) in the conditioning regimen, this approach has not been comparatively studied in unrelated peripheral blood stem cell transplantation (UPBSCT). To compare the risks and benefits between UCBT without ATG and UPBSCT in patients with acute leukemia (AL). This was a multicenter retrospective study of 79 patients who underwent UCBT (myeloablative conditioning without ATG) and 96 patients who underwent UPBSCT (myeloablative conditioning with ATG)...
May 9, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28493355/consideration-of-difficulties-and-exit-strategies-in-a-case-of-face-allotransplantation-resulting-in-failure
#5
Özlenen Özkan, Ömer Özkan, Umuttan Doğan, Vural Taner Yılmaz, Hilmi Uysal, Levent Ündar, Ebru Apaydın Doğan, Ozan Salim, Anı Çinpolat, Atilla Ramazanoglu
We describe the first rescue procedure in a case of total face allotransplantation. The recipient was a 54-year-old man with severe disfigurement of the entire face following an accidental gunshot injury 5 years previously. The large defect included the maxilla, mandible, and mid-face. Full face procurement was performed from a multiorgan cadaveric donor and was allotransplanted to the recipient. The post-transplant induction immunosuppressive regimen included ATG combined with tacrolimus, mycophenolate mofetil, and prednisone, while maintenance was provided by the last three of these...
May 11, 2017: Microsurgery
https://www.readbyqxmd.com/read/28484270/risk-factors-for-pneumocystis-jirovecii-pneumonia-pjp-in-kidney-transplantation-recipients
#6
Su Hwan Lee, Kyu Ha Huh, Dong Jin Joo, Myoung Soo Kim, Soon Il Kim, Juhan Lee, Moo Suk Park, Young Sam Kim, Se Kyu Kim, Joon Chang, Yu Seun Kim, Song Yee Kim
Pneumocystis jirovecii pneumonia (PJP) is a potentially life-threatening infection that occurs in immunocompromised patients. The aim of this study was to evaluate risk factors for PJP in kidney transplantation recipients. We conducted a retrospective analysis of patient data from 500 consecutive kidney transplants performed at Severance Hospital between April 2011 and April 2014. Eighteen kidney transplantation recipients (3.6%) were diagnosed with PJP. In the univariate analysis, acute graft rejection, CMV infection, use of medication for diabetes mellitus, and lowest lymphocyte count were associated with PJP...
May 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28484268/the-first-two-complete-mitochondrial-genomes-for-the-family-triglidae-and-implications-for-the-higher-phylogeny-of-scorpaeniformes
#7
Lei Cui, Yuelei Dong, Fenghua Liu, Xingchen Gao, Hua Zhang, Li Li, Jingyi Cen, Songhui Lu
The mitochondrial genome (mitogenome) can provide useful information for analyzing phylogeny and molecular evolution. Scorpaeniformes is one of the most diverse teleostean orders and has great commercial importance. To develop mitogenome data for this important group, we determined the complete mitogenomes of two gurnards Chelidonichthys kumu and Lepidotrigla microptera of Triglidae within Scorpaeniformes for the first time. The mitogenomes are 16,495 bp long in C. kumu and 16,610 bp long in L. microptera...
May 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28481984/the-dna-damage-response-ddr-is-induced-by-the-c9orf72-repeat-expansion-in-amyotrophic-lateral-sclerosis
#8
Manal A Farg, Anna Konopka, Kai Ying Soo, Daisuke Ito, Julie D Atkin
Amyotrophic lateral sclerosis (ALS) is a rapidly progressing neurodegenerative disease affecting motor neurons. Hexanucleotide (GGGGCC) repeat expansions in a non-coding region of C9orf72 are the major cause of familial ALS and frontotemporal dementia (FTD) worldwide. The C9orf72 repeat expansion undergoes repeat-associated non-ATG (RAN) translation to produce five dipeptide repeat proteins (DRPs), including poly(GR) and poly(PR). Whilst it remains unclear how mutations in C9orf72 lead to neurodegeneration in ALS/FTD, dysfunction to the nucleolus and R loop formation are implicated as pathogenic mechanisms...
May 8, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28473904/from-chronic-immune-thrombocytopenia-to-severe-aplastic-anemia-recent-insights-into-the-evolution-of-eltrombopag
#9
REVIEW
Harinder Gill, Raymond S M Wong, Yok-Lam Kwong
Thrombopoietin (TPO) is the most potent cytokine stimulating thrombopoiesis. Therapy with exogenous TPO is limited by the formation of antibodies cross-reacting with endogenous TPO. Mimetics of TPO are compounds with no antigenic similarity to TPO. Eltrombopag is an orally-active nonpeptide small molecule that binds to the transmembrane portion of the TPO receptor MPL. Initial trials of eltrombopag have centered on immune thrombocytopenia (ITP), which is due to both increased destruction and decreased production of platelets...
May 2017: Therapeutic Advances in Hematology
https://www.readbyqxmd.com/read/28456447/antithymocyte-globulins-in-renal-transplantation-from-lymphocyte-depletion-to-lymphocyte-activation-the-doubled-edged-sword
#10
REVIEW
Jamal Bamoulid, Thomas Crépin, Cécile Courivaud, Jean-Michel Rebibou, Philippe Saas, Didier Ducloux
Compelling data suggest that lymphocyte depletion following T cell depleting therapy may induce prolonged CD4 T cell lymphopenia and trigger lymphocyte activation in some patients. These profound and non-reversible immune changes in T cell pool subsets are the consequence of both impaired thymic renewal and peripheral homeostatic proliferation. Chronic viral challenges by CMV play a major role in these immune alterations. Even when the consequences of CD4 T cell lymphopenia have been now well described, recent studies shed new light on the clinical consequences of immune activation...
February 17, 2017: Transplantation Reviews
https://www.readbyqxmd.com/read/28441070/the-thr300ala-variant-of-atg16l1-is-associated-with-decreased-risk-of-brain-metastasis-in-patients-with-non-small-cell-lung-cancer
#11
Qian-Xia Li, Xiao Zhou, Ting-Ting Huang, Yang Tang, Bo Liu, Ping Peng, Li Sun, Yi-Hua Wang, Xiang-Lin Yuan
Non-small cell lung cancer (NSCLC) often metastasizes to the brain, but identifying which patients will develop brain metastases (BM) is difficult. Macroautophagy/autophagy is critical for cancer initiation and progression. We hypothesized that genetic variants of autophagy-related genes may affect brain metastases (BM) in NSCLC patients. We genotyped 16 single nucleotide polymorphisms (SNPs) in 7 autophagy-related (ATG) genes (ATG3, ATG5, ATG7, ATG10, ATG12, ATG16L1, and MAP1LC3/LC3) by using DNA from blood samples of 323 NSCLC patients...
April 25, 2017: Autophagy
https://www.readbyqxmd.com/read/28439929/the-roles-of-autophagy-and-hypoxia-in-human-inflammatory-periapical-lesions
#12
H Y Huang, W C Wang, P Y Lin, C P Huang, C Y Chen, Y K Chen
AIM: To determine the expressions of hypoxia-related [hypoxia-inducible transcription factors (HIF)-1α, BCL2/adenovirus E1B 19 kDa protein-interacting protein 3 (BNIP3), and phospho-adenosine monophosphate activated protein kinase (pAMPK)] and autophagy-related [microtubule-associated protein 1 light chain 3 (LC3), beclin-1 (BECN-1), autophagy-related gene (Atg)5-12, and p62] proteins in human inflammatory periapical lesions. METHODOLOGY: Fifteen samples of radicular cysts (RCs) and 21 periapical granulomas (PGs), combined with 17 healthy dental pulp tissues were examined...
April 25, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28428343/mechanisms-of-autophagy-induction-by-sex-steroids-in-bovine-mammary-epithelial-cells
#13
Katarzyna Zielniok, Agnieszka Sobolewska, Malgorzata Gajewska
In dairy cattle mammary gland involution serves to remodel the secretory tissue, and occurs in a period of overlap between mammogenic stimulation caused by next developing pregnancy and tissue regression induced by milk stasis. At this time high concentrations of 17β-estradiol (E2) and progesterone (P4) support regeneration of the mammary tissue, as well as enhance autophagy, a cellular process induced in response to stressful conditions for energy generation and homeostasis maintenance. This study aimed to elucidate the mechanisms of autophagy induction by E2 and P4 using an in vitro model of involution based on 20-fold reduction of FBS content (from 10% to 0...
April 20, 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/28423666/negative-lc3b-immunoreactivity-in-cancer-cells-is-an-independent-prognostic-predictor-of-prostate-cancer-specific-death
#14
Ashkan Mortezavi, Souzan Salemi, Niels J Rupp, Jan Hendrik Rüschoff, Thomas Hermanns, Cedric Poyet, Marco Randazzo, Hans-Uwe Simon, Holger Moch, Tullio Sulser, Peter Wild, Daniel Eberli
BACKGROUND: Autophagy is a catabolic cellular process used for degradation of cytoplasmic organelles and preservation of cell viability. In this study we aimed to analyse the level of autophagy markers in benign and malignant prostate tissue and to evaluate the prognostic properties for patients with prostate cancer (PCa). RESULTS: LC3b expression was significantly upregulated in PCa, especially in metastatic and castration-resistant PCa samples compared to benign prostate tissue (p<0...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28420437/bidirectional-nucleolar-dysfunction-in-c9orf72-frontotemporal-lobar-degeneration
#15
Sarah Mizielinska, Charlotte E Ridler, Rubika Balendra, Annora Thoeng, Nathan S Woodling, Friedrich A Grässer, Vincent Plagnol, Tammaryn Lashley, Linda Partridge, Adrian M Isaacs
An intronic GGGGCC expansion in C9orf72 is the most common known cause of both frontotemporal lobar degeneration (FTLD) and amyotrophic lateral sclerosis (ALS). The repeat expansion leads to the generation of sense and antisense repeat RNA aggregates and dipeptide repeat (DPR) proteins, generated by repeat-associated non-ATG translation. The arginine-rich DPR proteins poly(glycine-arginine or GR) and poly(proline-arginine or PR) are potently neurotoxic and can localise to the nucleolus when expressed in cells, resulting in enlarged nucleoli with disrupted functionality...
April 18, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/28419317/high-dose-and-high-frequency-lanreotide-autogel-in-acromegaly-a-randomized-multicenter-study
#16
Andrea Giustina, Gherardo Mazziotti, Salvatore Cannavò, Roberto Castello, Giorgio Arnaldi, Giovanna Bugari, Renato Cozzi, Diego Ferone, Anna Maria Formenti, Enza Gatti, Silvia Grottoli, Pietro Maffei, Filippo Maffezzoni, Marcella Montini, Massimo Terzolo, Ezio Ghigo
Context: The increase in drug frequency or dose is recommended for acromegaly patients with partial response to long-acting somatostatin receptor ligands (SRLs). However, the efficacy and safety data with lanreotide autogel (LAN-ATG) at high-dose (HD) or high-frequency (HF) are still scanty and anecdotal. Objective: To evaluate the biochemical efficacy and safety of HF- and HD LAN-ATG in patients with active acromegaly. Design: 24-week prospective, multicentre, randomized, open-label trial...
April 17, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28415024/glucocorticoids-differentially-regulate-the-innate-immune-responses-of-tlr4-and-the-cytosolic-dna-sensing-pathway
#17
Jinli Wang, Ruining Wang, Jiahui Yang, Xiaofan Yang, Shengfeng Hu, Hui Wang, Chaoying Zhou, Wenjing Xiong, Qian Wen, Li Ma
Glucocorticoids (GCs) are widely used to treat the chronic inflammatory disorders because of their powerful anti-inflammatory properties; however, their effects on macrophage-mediated immune responses are not completely understood. In the present study, we found that GCs decreased LPS-mediated TBK1 activation and the expression of IFN-β, RANTES and CXCL-10; however, poly(dA:dT)-induced TBK1 activity and cytokine expression were not affected by GCs treatment. Furthermore, GCs decreased the expression of key autophagy-related genes (ATGs), including ATG5, ATG7 and ATG12, and inhibited autophagy in macrophages after LPS stimulation...
April 14, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28413119/the-two-dictyostelium-discoideum-autophagy-8-proteins-have-distinct-autophagic-functions
#18
Susanne Meßling, Jan Matthias, Qiuhong Xiong, Sarah Fischer, Ludwig Eichinger
Autophagy is a highly conserved cellular degradation pathway which is crucial for various cellular processes. The autophagic process is subdivided in the initiation, autophagosome maturation and lysosomal degradation phases and involves more than forty core and accessory autophagy-related (ATG) proteins. Autophagy 8 (ATG8, in mammals LC3) is a well-established marker of autophagy and is linked to the autophagic membrane from initiation until fusion with the lysosome. We generated single and double knock-out mutants of the two Dictyostelium paralogues, ATG8a and ATG8b, as well as strains that expressed RFP-ATG8a and/or GFP-ATG8b, RFP-ATG8b, RFP-GFP-ATG8a or RFP-GFP-ATG8b in different knock-out mutants...
April 4, 2017: European Journal of Cell Biology
https://www.readbyqxmd.com/read/28411887/from-christian-de-duve-to-yoshinori-ohsumi-more%C3%A2-to-autophagy-than-just-dining-at-home
#19
REVIEW
Margaret M Harnett, Miguel A Pineda, Perle Latré de Laté, Russell J Eason, Sébastien Besteiro, William Harnett, Gordon Langsley
Christian de Duve first coined the expression "autophagy" during his seminal work on the discovery of lysosomes, which led to him being awarded the Nobel Prize in Physiology or Medicine in 1974. The term was adopted to distinguish degradation of intracellular components from the uptake and degradation of extracellular substances that he called "heterophagy". Studies until the 1990s were largely observational/morphological-based until in 1993 Yoshinori Oshumi described a genetic screen in yeast undergoing nitrogen deprivation that led to the isolation of autophagy-defective mutants now better known as ATG (AuTophaGy-related) genes...
February 2017: Biomedical Journal
https://www.readbyqxmd.com/read/28411883/horning-cell-self-digestion-autophagy-wins-the%C3%A2-2016-nobel-prize-in-physiology-or-medicine
#20
EDITORIAL
Po-Yuan Ke
Autophagy is an evolutionarily conserved process by which eukaryotic cells eliminate intracellular components via the lysosomal degradation process. This cell self-digestion process was first discovered and morphologically characterized in the late 1950s and early 1960s. The genetic screen studies in baker's yeast in the 1990s further identified the essential genes functioning in the autophagic process. In the past two decades, the detailed molecular process involved in the completion of autophagy was delineated...
February 2017: Biomedical Journal
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