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https://www.readbyqxmd.com/read/29145593/root-respiratory-burst-oxidase-homologue-dependent-h2o2-production-confers-salt-tolerance-on-a-grafted-cucumber-by-controlling-na-exclusion-and-stomatal-closure
#1
Mengliang Niu, Yuan Huang, Shitao Sun, Jingyu Sun, Haishun Cao, Sergey Shabala, Zhilong Bie
Plant salt tolerance can be improved by grafting onto salt-tolerant rootstocks. However, the underlying signaling mechanisms behind this phenomenon remain largely unknown. To address this issue, we used a range of physiological and molecular techniques to study responses of self-grafted and pumpkin-grafted cucumber plants exposed to 75 mM NaCl stress. Pumpkin grafting significantly increased the salt tolerance of cucumber plants, as revealed by higher plant dry weight, chlorophyll content and photochemical efficiency (Fv/Fm), and lower leaf Na+ content...
November 14, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29145563/neuronal-dnmt1-deficiency-attenuates-diet-induced-obesity-in-mice
#2
Emily C Bruggeman, John T Garretson, Rui Wu, Hang Shi, Bingzhong Xue
Aberrant neuronal DNA methylation patterns have been implicated in the promotion of obesity development, but the role of neuronal DNA methyltransferases (Dnmts; enzymes that catalyze DNA methylation) in energy balance remains poorly understood. We investigated whether neuronal Dnmt1 regulates normal energy homeostasis and obesity development using a novel Dnmt1 knockout mouse model, Dnmt1fl/fl Synapsin1Cre (ND1KO), which specifically deletes Dnmt1 in neurons.Neuronal Dnmt1 deficiency reduced adiposity in chow-fed mice and attenuated obesity in HFD-fed male mice...
November 14, 2017: Endocrinology
https://www.readbyqxmd.com/read/29145543/association-of-ipilimumab-with-safety-and-antitumor-activity-in-women-with-metastatic-or-recurrent-human-papillomavirus-related-cervical-carcinoma
#3
Stephanie Lheureux, Marcus O Butler, Blaise Clarke, Mihaela C Cristea, Lainie P Martin, Katia Tonkin, Gini F Fleming, Anna V Tinker, Hal W Hirte, Daliah Tsoref, Helen Mackay, Neesha C Dhani, Prafull Ghatage, Johanne Weberpals, Stephen Welch, Nhu-An Pham, Vinicius Motta, Valentin Sotov, Lisa Wang, Katherine Karakasis, Smitha Udagani, Suzanne Kamel-Reid, Howard Z Streicher, Patricia Shaw, Amit M Oza
Importance: Based on evidence of human papillomavirus (HPV)-induced immune evasion, immunotherapy may be an attractive strategy in cervical cancer. Ipilimumab is a fully humanized monoclonal antibody that blocks cytotoxic T-lymphocyte antigen-4 (CTLA-4), which acts to downregulate the T-cell immune response. Objective: To assess the safety and antitumor activity of ipilimumab in recurrent cervical cancer. Design, Setting, and Participants: A multicenter trial was designed for patients with metastatic cervical cancer (squamous cell carcinoma or adenocarcinoma) with measurable disease and progression after at least 1 line of platinum chemotherapy...
November 16, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/29145540/inverse-association-of-peripheral-orexin-a-with-insulin-resistance-in-type-2-diabetes-mellitus-a-randomized-clinical-trial
#4
Mitra Zarifkar, Sina Noshad, Mona Shahriari, Mohsen Afarideh, Elias Khajeh, Zahra Karimi, Alireza Ghajar, Alireza Esteghamati
AIMS: To investigate the association between serum orexin concentrations and insulin resistance/sensitivity in a sample of patients with type 2 diabetes mellitus, and to study the effects of anti-hyperglycemic treatment on orexin concentrations over three months. METHODS: This study was designed as a randomized, open-label, clinical trial. Before allocation, sixty medication-naïve, newly-diagnosed, type 2 diabetes patients underwent a 75 g oral glucose tolerance test (OGTT)...
July 2017: Review of Diabetic Studies: RDS
https://www.readbyqxmd.com/read/29145499/clinical-tool-for-disease-phenotyping-in-granulomatous-lung-disease
#5
Lori J Silveira, Matthew Strand, Michael V Van Dyke, Margaret M Mroz, Anna V Faino, Dana M Dabelea, Lisa A Maier, Tasha E Fingerlin
BACKGROUND: Exposure to beryllium may lead to granuloma formation and fibrosis in those who develop chronic beryllium disease (CBD). Although disease presentation varies from mild to severe, little is known about CBD phenotypes. This study characterized CBD disease phenotypes using longitudinal measures of lung function. METHODS: Using a case-only study of 207 CBD subjects, subject-specific trajectories over time were estimated from longitudinal pulmonary function and exercise-tolerance tests...
2017: PloS One
https://www.readbyqxmd.com/read/29145496/insights-into-soybean-transcriptome-reconfiguration-under-hypoxic-stress-functional-regulatory-structural-and-compositional-characterization
#6
Thiago J Nakayama, Fabiana A Rodrigues, Norman Neumaier, Juliana Marcolino-Gomes, Hugo B C Molinari, Thaís R Santiago, Eduardo F Formighieri, Marcos F Basso, José R B Farias, Beatriz M Emygdio, Ana C B de Oliveira, Ângela D Campos, Aluízio Borém, Frank G Harmon, Liliane M Mertz-Henning, Alexandre L Nepomuceno
Soybean (Glycine max) is one of the major crops worldwide and flooding stress affects the production and expansion of cultivated areas. Oxygen is essential for mitochondrial aerobic respiration to supply the energy demand of plant cells. Because oxygen diffusion in water is 10,000 times lower than in air, partial (hypoxic) or total (anoxic) oxygen deficiency is important component of flooding. Even when oxygen is externally available, oxygen deficiency frequently occurs in bulky, dense or metabolically active tissues such as phloem, meristems, seeds, and fruits...
2017: PloS One
https://www.readbyqxmd.com/read/29145480/engineering-the-gh1-%C3%AE-glucosidase-from-humicola-insolens-insights-on-the-stimulation-of-activity-by-glucose-and-xylose
#7
Luana Parras Meleiro, José Carlos Santos Salgado, Raquel Fonseca Maldonado, Sibeli Carli, Luiz Alberto Beraldo Moraes, Richard John Ward, João Atílio Jorge, Rosa Prazeres Melo Furriel
The activity of the GH1 β-glucosidase from Humicola insolens (Bglhi) against p-nitrophenyl-β-D-glucopyranoside (pNP-Glc) and cellobiose is enhanced 2-fold by glucose and/or xylose. Kinetic and transglycosylation data showed that hydrolysis is preferred in the absence of monosaccharides. Stimulation involves allosteric interactions, increased transglycosylation and competition of the substrate and monosaccharides for the -1 glycone and the +1/+2 aglycone binding sites. Protein directed evolution has been used to generate 6 mutants of Bglhi with altered stimulation patterns...
2017: PloS One
https://www.readbyqxmd.com/read/29145418/testosterone-is-protective-against-impaired-glucose-metabolism-in-male-intrauterine-growth-restricted-offspring
#8
Suttira Intapad, John Henry Dasinger, Joel M Fahling, Miles A Backstrom, Barbara T Alexander
Placental insufficiency alters the intrauterine environment leading to increased risk for chronic disease including impaired glucose metabolism in low birth weight infants. Using a rat model of low birth weight, we previously reported that placental insufficiency induces a significant increase in circulating testosterone in male intrauterine growth-restricted offspring (mIUGR) in early adulthood that is lost by 12 months of age. Numerous studies indicate testosterone has a positive effect on glucose metabolism in men...
2017: PloS One
https://www.readbyqxmd.com/read/29145270/study-on-the-adverse-effects-following-chemotherapy-for-breast-cancer-diagnosis-during-pregnancy-the-first-case-report-in-china
#9
Xin Ye, Qi He, Xiaoyun Zhou
RATIONALE: Treatment of breast cancer during pregnancy (BCP) remains a challenge to physicians. Surgery and chemotherapy during pregnancy are widely used for the treatment of BCP. Herein, we reported 3 Chinese patients with BCP who underwent chemotherapy during pregnancy and were followed up for adverse effects. PATIENT CONCERNS: Three female patients (case 1, case 2, and case 3) of 37-, 32-, and 28-year-old with breast masses were enrolled. Case 1 had been pregnant for over 4 months, case 2 over 7 months, and case 3 for 7 months...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145260/reversible-severe-fatty-liver-induced-by-capecitabine-a-case-report
#10
Yiyan Jiang, Qiancheng He, Suxia Li, Chang Shi, Xiaolei Yang
RATIONALE: Capecitabine (CAP) is a chemotherapeutic agent used to treat breast and gastrointestinal cancers. The most common adverse reactions of CAP primarily included gastrointestinal and dermatological effects. Whereas, the CAP-induced fatty liver had never been reported. PATIENT CONCERNS: In this study, a-69-year old female presented a history of hypertension with regulated blood pressure, whereas diabetes mellitus, hyperlipidemia, and hepatitis were excluded...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145246/case-report-pentoxifylline-treatment-in-microscopic-colitis
#11
Thomas G Cotter, Amrit K Kamboj, Stephen Bradley Hicks, William J Tremaine, Edward V Loftus, Darrell S Pardi
RATIONALE: Microscopic colitis is a common cause of diarrhea. Pentoxifylline, a xanthine derivative with anti-tumor necrosis factor-alpha properties, is prescribed for intermittent claudication and other disorders. Our goal was to evaluate the outcomes of patients with microscopic colitis treated with pentoxifylline. PATIENT CONCERNS: Nine patients with microscopic colitis (8 collagenous colitis and 1 lymphocytic colitis) seen at Mayo Clinic, Rochester, between January 1, 1997 and November 30, 2016, were included...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145238/apatinib-in-refractory-radiation-induced-brain-edema-a-case-report
#12
Wei Guo Hu, Yi Ming Weng, Yi Dong, Xiang Pan Li, Qi-Bin Song
RATIONALE: Apatinib is a novel tyrosine kinase inhibitor targeting vascular endothelial growth factor receptor-2, which has observed to be effective and safe in refractory radiation-induced brain edema, like Avastin did. Till now, there is no case report after apatinib came in the market. PATIENT CONCERNS: Two patients who received brain radiotherapy developed clinical manifestations of brain edema, including dizziness, headache, limb activity disorder, and so on...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145118/long-term-effects-of-combined-divalent-copper-and-tetracycline-on-the-performance-microbial-activity-and-community-in-a-sequencing-batch-reactor
#13
Zichao Wang, Pinghui Xia, Mengchun Gao, Kedong Ma, Zhiwei Deng, Junfeng Wei, Jing Zhang, Lin Wang, Guoxia Zheng, Yusuo Yang, Jinbo Chen, Yuejing Wang
The long-term effects of combined divalent copper (Cu(II)) and tetracycline (TC) on the performance, microbial activity and community in a sequencing batch reactor (SBR) were investigated. The addition of Cu(II), TC or mixed Cu(II)/TC caused the decrease of the organics and nitrogen removal efficiencies, and their decreased degrees were the lowest at the addition of mixed Cu(II)/TC. The increase of mixed Cu(II)/TC concentrations in the influent did not change the antagonistic effects between Cu(II) and TC on nitrifying and denitrifying activities...
November 6, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29145051/towards-stressor-specific-macroinvertebrate-indices-which-traits-and-taxonomic-groups-are-associated-with-vulnerable-and-tolerant-taxa
#14
Elisabeth Berger, Peter Haase, Ralf B Schäfer, Andrea Sundermann
Monitoring of macroinvertebrate communities is frequently used to define the ecological health status of rivers. Ideally, biomonitoring should also give an indication on the major stressors acting on the macroinvertebrate communities supporting the selection of appropriate management measures. However, most indices are affected by more than one stressor. Biological traits (e.g. size, generation time, reproduction) could potentially lead to more stressor-specific indices. However, such an approach has rarely been tested...
November 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29145039/a-first-in-human-phase-i-study-of-sar125844-a-selective-met-tyrosine-kinase-inhibitor-in-patients-with-advanced-solid-tumours-with-met-amplification
#15
Eric Angevin, Gianluca Spitaleri, Jordi Rodon, Katia Dotti, Nicolas Isambert, Stefania Salvagni, Victor Moreno, Sylvie Assadourian, Corinne Gomez, Marzia Harnois, Antoine Hollebecque, Analia Azaro, Alice Hervieu, Karim Rihawi, Filippo De Marinis
PURPOSE: Dysregulated MET signalling is implicated in oncogenesis. The safety and preliminary efficacy of a highly selective MET kinase inhibitor (SAR125844) was investigated in patients with advanced solid tumours and MET dysregulation. METHODS: This was a phase I dose-escalation (3 + 3 design [50-740 mg/m(2)]) and dose-expansion study. In the dose escalation, patients had high total MET (t-MET) expression by immunohistochemistry (IHC) or MET amplification by fluorescence in situ hybridisation...
November 13, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29145012/the-gut-brain-interaction-in-opioid-tolerance
#16
REVIEW
Hamid I Akbarali, William L Dewey
The prevailing opioid crisis has necessitated the need to understand mechanisms leading to addiction and tolerance, the major contributors to overdose and death and to develop strategies for developing drugs for pain treatment that lack abuse liability and side-effects. Opioids are commonly used for treatment of pain and symptoms of inflammatory bowel disease. The significant effect of opioids in the gut, both acute and chronic, includes persistent constipation and paradoxically may also worsen pain symptoms...
November 13, 2017: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/29144985/a-phase-1-2-study-of-rigosertib-in-patients-with-myelodysplastic-syndromes-mds-and-mds-progressed-to-acute-myeloid-leukemia
#17
Shyamala C Navada, Steven M Fruchtman, Rosalie Odchimar-Reissig, Erin P Demakos, Michael E Petrone, Patrick S Zbyszewski, James F Holland, Lewis R Silverman
This Phase 1/2, dose-escalating study of rigosertib enrolled 22 patients with higher-risk myelodysplastic syndromes (MDS) (n=9) and acute myeloid leukemia (AML; n=13) who had relapsed or were refractory to standard therapy and for whom no second-line therapies were approved. Patients received 3- to 7-day continuous intravenous infusions of rigosertib, an inhibitor of Ras-effector pathways that interacts with the Ras-binding domains, common to several signaling proteins including Raf and PI3 kinase. Rigosertib was administered at doses of 650-1700mg/m(2)/day in 14-day cycles...
November 11, 2017: Leukemia Research
https://www.readbyqxmd.com/read/29144828/prognostic-impact-of-cd200-and-cd56-expression-in-pediatric-b-cell-acute-lymphoblastic-leukemia-patients
#18
Salah Aref, Emad Azmy, Kadry El-Bakry, Lobna Ibrahim, Sherin Abdel Aziz
This study aimed to determine the prognostic impact of CD200 and CD56 expression in pediatric B cell acute lymphoblastic leukemia (B-ALL) patients, both of which have been implicated in immune tolerance and previously suggested as independent risk factors. CD200 has a central role in immune tolerance that protects stem cells and other critical tissues from immune damage. The expression of CD200/CD56 in leukemic blasts were assessed in leukemic blasts before chemotherapy in 43 bone marrow (BM) and/or peripheral blood (PB) samples by flow cytometry...
November 16, 2017: Pediatric Hematology and Oncology
https://www.readbyqxmd.com/read/29144805/dpp4-inhibitor-sitagliptin-as-a-potential-treatment-option-in-metformin-intolerant-obese-women-with-polycystic-ovary-syndrome-a-pilot-randomized-study
#19
Simona Ferjan, Andrej Janez, Mojca Jensterle
OBJECTIVE: Metformin has an established role in the management of polycystic ovary syndrome (PCOS). Some patients cannot tolerate it due to associated gastrointestinal adverse events. The present study evaluated DPP4 inhibitor sitagliptin as a potential treatment option in metformin intolerant PCOS. DESIGN: We conducted a 12-week prospective randomized open-label study with 30 obese metformin intolerant women with PCOS (aged 35.0±7.2 years, BMI 36.9±5.5 kg/m(2))...
November 16, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29144802/lipid-accumulation-product-visceral-adiposity-index-and-chinese-visceral-adiposity-index-as-markers-of-cardiometabolic-risk-in-adult-growth-hormone-deficiency-patients-a-cross-sectional-study
#20
Xin Xie, Qing Li, Lingmin Zhang, Wei Ren
OBJECTIVE: Adult growth hormone deficiency (AGHD) is associated with cardiometabolic risk factors. Given that cardiovascular disease (CVD) is an important cause of morbidity and mortality in the AGHD population, there is a need for alternative, non-invasive methods of assessing cardiometabolic risk in this population. Chinese visceral adiposity index (CVAI) is a new marker of visceral fat dysfunction that is based on age, body mass index (BMI), waist circumference (WC) and metabolic parameters...
November 16, 2017: Endocrine Practice
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