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https://www.readbyqxmd.com/read/27936512/genome-editing-of-the-disease-susceptibility-gene-cslob1-in-citrus-confers-resistance-to-citrus-canker
#1
Hongge Jia, Yunzen Zhang, Vladimir Orbovic, Jin Xu, Frank White, Jeffrey Jones, Nian Wang
Citrus is a highly valued tree crop worldwide, while, at the same time, citrus production faces many biotic challenges, including bacterial canker and Huanglongbing (HLB). Breeding for disease resistant varieties is the most efficient and sustainable approach to control plant diseases. Traditional breeding of citrus varieties is challenging due to multiple limitations, including polyploidy, polyembryony, extended juvenility, and long crossing cycles. Targeted genome editing technology has the potential to shorten varietal development for some traits, including disease resistance...
December 9, 2016: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/27936482/intrahepatic-cholestasis-of-pregnancy-icp-case-report-and-review-of-the-literature
#2
V Keitel, C Dröge, S Stepanow, T Fehm, E Mayatepek, K Köhrer, D Häussinger
Intrahepatic cholestasis of pregnancy (ICP) represents the most common pregnancy-related liver disease in women. Women frequently present in the third trimester with pruritus and elevated serum bile acid and/or alanine transaminase levels. Clinical symptoms quickly resolve after delivery; however, recurrence in subsequent pregnancies has to be expected. Intrahepatic cholestasis of pregnancy is associated with increased perinatal complications, such as premature delivery, meconium staining of the amniotic fluid, respiratory distress, low Apgar scores, and even stillbirth...
December 2016: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/27936464/refractory-testicular-germ-cell-tumors-are-highly-sensitive-to-the-second-generation-dna-methylation-inhibitor-guadecitabine
#3
Costantine Albany, Mary P Hever-Jardine, Katherine M von Herrmann, Christina Y Yim, Janice Tam, Joshua M Warzecha, Leah Shin, Sarah E Bock, Brian S Curran, Aneeq S Chaudhry, Fred Kim, George E Sandusky, Pietro Taverna, Sarah J Freemantle, Brock C Christensen, Lawrence H Einhorn, Michael J Spinella
Testicular germ cell tumors (TGCTs) are the most common cancers of young males. A substantial portion of TGCT patients are refractory to cisplatin. There are no effective therapies for these patients, many of whom die from progressive disease. Embryonal carcinoma (EC) are the stem cells of TGCTs. In prior in vitro studies we found that EC cells were highly sensitive to the DNA methyltransferase inhibitor, 5-aza deoxycytidine (5-aza). Here, as an initial step in bringing demethylation therapy to the clinic for TGCT patients, we evaluated the effects of the clinically optimized, second generation demethylating agent guadecitabine (SGI-110) on EC cells in an animal model of cisplatin refractory testicular cancer...
December 7, 2016: Oncotarget
https://www.readbyqxmd.com/read/27936450/clinical-outcome-following-medical-treatment-of-cavernous-malformation-related-epilepsy
#4
Yoonju Lee, Kyoo Ho Cho, Hye Ihn Kim, Seung-Koo Lee, Yang-Je Cho, Kyoung Heo, Byung In Lee
PURPOSE: The study was conducted to assess the long-term outcome of antiepileptic drug (AED) treatment in drug-naïve patients with cavernous malformation (CM) related epilepsy (CRE). METHOD: This is a retrospective, single-center, long-term observational study of 34 patients with previously untreated seizures related to CM. All patients were followed-up for at least two years. Drug resistant epilepsy (DRE) was defined as two or more seizures per year after trial of two appropriate AEDs...
November 18, 2016: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/27936446/design-synthesis-and-evaluation-of-4-aminoquinoline-purine-hybrids-as-potential-antiplasmodial-agents
#5
P Linga Reddy, Shabana I Khan, Prija Ponnan, Mohit Tripathi, Diwan S Rawat
A novel series of 4-aminoquinoline-purine hybrids were synthesized and assessed for their antiplasmodial activity against CQ-sensitive and CQ-resistant strains of P. falciparum. It was envisaged that linking of the 4-aminoquinoline pharmacophore (targeting heme-detoxification pathway of malarial parasite) with the purine functionality (targeting plasmodial HG(X)PRT enzyme) will produce a hybrid antiplasmodial agent with increased potency. The synthesized hybrids displayed good antiplasmodial activities against both the sensitive and resistant strains of P...
December 1, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27936435/bilobalide-abates-inflammation-insulin-resistance-and-secretion-of-angiogenic-factors-induced-by-hypoxia-in-3t3-l1-adipocytes-by-controlling-nf-%C3%AE%C2%BAb-and-jnk-activation
#6
A Priyanka, G Sindhu, G L Shyni, M R Preetha Rani, V M Nisha, K G Raghu
Obesity leads to inflammation and insulin resistance in adipose tissue. Hypoxia, observed in obese adipose tissue is suggested as a major cause of inflammation and insulin resistance in obesity. However, the role of hypoxia in adipose tissue during obesity and insulin resistance was not well established. Here we mainly explored the crosstalk between hypoxia induced inflammation, and insulin resistance and also secretion of angiogenic factors in 3T3-L1 adipocytes and possible reversal with bilobalide. Hypoxia for 24h significantly (P≤0...
December 6, 2016: International Immunopharmacology
https://www.readbyqxmd.com/read/27936402/influence-of-triethyl-phosphate-on-phosphatase-activity-in-shooting-range-soil-isolation-of-a-zinc-resistant-bacterium-with-an-acid-phosphatase
#7
Sandra Story, Robin L Brigmon
Phosphatase-mediated hydrolysis of organic phosphate may be a viable means of stabilizing heavy metals via precipitation as a metal phosphate in bioremediation applications. We investigated the effect of triethyl phosphate (TEP) on soil microbial-phosphatase activity in a heavy-metal contaminated soil. Gaseous TEP has been used at subsurface sites for bioremediation of organic contaminants but not applied in heavy-metal contaminated areas. Little is known about how TEP affects microbial activity in soils and it is postulated that TEP can serve as a phosphate source in nutrient-poor groundwater and soil/sediments...
December 6, 2016: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/27936394/increased-intracellular-ca-2-decreases-cisplatin-resistance-by-regulating-inos-expression-in-human-ovarian-cancer-cells
#8
Yang Yu, Qi Xie, Weimin Liu, Yuting Guo, Na Xu, Lu Xu, Shibing Liu, Songyan Li, Ye Xu, Liankun Sun
Previous studies have reported that intracellular Ca(2+) signals and inducible nitric oxide synthase (iNOS) are involved in cell apoptosis. However, the role of iNOS in cisplatin resistance in ovarian cancer remains unclear. Here, we demonstrate that SKOV3/DDP ovarian cancer cells were more resistant to cisplatin than were SKOV3 ovarian cancer cells. The expression of intracellular Ca(2+) and iNOS was more strongly induced by cisplatin in SKOV3 cells than in SKOV3/DDP cells. TAT-conjugated IP3R-derived peptide (TAT-IDP(S)) increased cisplatin-induced iNOS expression and apoptosis in SKOV3/DDP cells...
December 6, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27936346/antibodies-to-staphylococcus-aureus-capsular-polysaccharides-5-and-8-perform-similarly-in-vitro-but-are-functionally-distinct-in-vivo
#9
Bo Liu, Saeyoung Park, Christopher D Thompson, Xue Li, Jean C Lee
The capsular polysaccharide (CP) produced by Staphylococcus aureus is a virulence factor that allows the organism to evade uptake and killing by host neutrophils. Polyclonal antibodies to the serotype 5 (CP5) and type 8 (CP8) capsular polysaccharides are opsonic and protect mice against experimental bacteremia provoked by encapsulated staphylococci. Thus, passive immunotherapy using CP antibodies has been considered for the prevention or treatment of invasive antibiotic-resistant S. aureus infections. In this report, we generated monoclonal antibodies (mAbs) against S...
December 9, 2016: Virulence
https://www.readbyqxmd.com/read/27936335/rac2-p38-mapk-dependent-nadph-oxidase-activity-is-associated-with-the-resistance-of-quiescent-cells-to-ionizing-radiation
#10
Hailong Pei, Jian Zhang, Jing Nie, Nan Ding, Wentao Hu, Junrui Hua, Ryoichi Hirayama, Yoshiya Furusawa, Cuihua Liu, Bingyan Li, Tom K Hei, Guangming Zhou
Our recent study showed that quiescent G0 cells are more resistant to ionizing radiation than G1 cells; however, the underlying mechanism for this increased radioresistance is unknown. Based on the relatively lower DNA damage induced in G0 cells, we hypothesize that these cells are exposed to less oxidative stress during exposure. As a catalytic subunit of NADPH oxidase, Ras-related C3 botulinum toxin substrate 2 (RAC2) may be involved in the cellular response to ionizing radiation. Here, we show that RAC2 was expressed at low levels in G0 cells but increased substantially in G1 cells...
December 9, 2016: Cell Cycle
https://www.readbyqxmd.com/read/27936325/effect-of-heteroatom-substitution-on-transport-in-alkane-dithiol-based-molecular-tunnel-junctions-evidence-for-universal-behavior
#11
Zuoti Xie, Ioan Baldea, Stuart Oram, Christopher E Smith, C Daniel Frisbie
The transport properties of molecular junctions based on alkane dithiols with three different methylene chain lengths were compared with junctions based on similar chains wherein every third -CH2- was replaced with O or S, i.e., following the general formula: HS(CH2CH2X)nCH2CH2SH, where X = CH2, O or S, and n = 1, 2, or 3. Conducting probe atomic force microscopy (CP-AFM) revealed that the low bias resistance of the chains increased upon substitution in the order CH2 < O < S. This change in resistance is ascribed to the observed identical trend in contact resistance, R_c, whereas the exponential prefactor β (length sensitivity) was essentially the same for all chains...
December 9, 2016: ACS Nano
https://www.readbyqxmd.com/read/27936306/hybrid-polymer-garnet-electrolyte-with-a-small-interfacial-resistance-for-lithium-ion-batteries
#12
Yutao Li, Biyi Xu, Henghui Xu, Huanan Duan, Xujie Lü, Sen Xin, Weidong Zhou, Leigang Xue, Gengtao Fu, Arumugam Manthiram, John B Goodenough
Li7 La3 Zr2 O12 -based Li-rich garnets react with water and carbon dioxide in air to form a Li-ion insulating Li2 CO3 layer on the surface of the garnet particles, which results in a large interfacial resistance for Li-ion transfer. Here, we introduce LiF to garnet Li6.5 La3 Zr1.5 Ta0.5 O12 (LLZT) to increase the stability of the garnet electrolyte against moist air; the garnet LLZT-2 wt % LiF (LLZT-2LiF) has less Li2 CO3 on the surface and shows a small interfacial resistance with Li metal, a solid polymer electrolyte, and organic-liquid electrolytes...
December 9, 2016: Angewandte Chemie
https://www.readbyqxmd.com/read/27936245/in-vitro-selective-growth-inhibitory-effect-of-8-hydroxyquinoline-on-clostridium-perfringens-versus-bifidobacteria-in-a-medium-containing-chicken-ileal-digesta
#13
Eva Skrivanova, Filip Van Immerseel, Petra Hovorkova, Ladislav Kokoska
Clostridium perfringens-induced necrotic enteritis is generally controlled by antibiotics. However, because of increasing antibiotic resistance, other antibacterial agents are required, preferably ones that do not affect the beneficial intestinal microbiota of the host. This study evaluated the in vitro selective growth-inhibitory effect of 8-hydroxyquinoline (8HQ) on C. perfringens vs. bifidobacteria in a medium containing chicken ileal digesta. Prior to the experiments, the minimum inhibitory concentrations of 8HQ and penicillin G were determined by broth microdilution assay...
2016: PloS One
https://www.readbyqxmd.com/read/27936240/composting-like-conditions-are-more-efficient-for-enrichment-and-diversity-of-organisms-containing-cellulase-encoding-genes-than-submerged-cultures
#14
Senta Heiss-Blanquet, Françoise Fayolle-Guichard, Vincent Lombard, Agnès Hébert, Pedro M Coutinho, Alexis Groppi, Aurélien Barre, Bernard Henrissat
Cost-effective biofuel production from lignocellulosic biomass depends on efficient degradation of the plant cell wall. One of the major obstacles for the development of a cost-efficient process is the lack of resistance of currently used fungal enzymes to harsh conditions such as high temperature. Adapted, thermophilic microbial communities provide a huge reservoir of potentially interesting lignocellulose-degrading enzymes for improvement of the cellulose hydrolysis step. In order to identify such enzymes, a leaf and wood chip compost was enriched on a mixture of thermo-chemically pretreated wheat straw, poplar and Miscanthus under thermophile conditions, but in two different set-ups...
2016: PloS One
https://www.readbyqxmd.com/read/27936238/trehalose-6-phosphate-mediated-toxicity-determines-essentiality-of-otsb2-in-mycobacterium-tuberculosis-in-vitro-and-in-mice
#15
Jan Korte, Marina Alber, Carolina M Trujillo, Karl Syson, Hendrik Koliwer-Brandl, René Deenen, Karl Köhrer, Michael A DeJesus, Travis Hartman, William R Jacobs, Stephen Bornemann, Thomas R Ioerger, Sabine Ehrt, Rainer Kalscheuer
Trehalose biosynthesis is considered an attractive target for the development of antimicrobials against fungal, helminthic and bacterial pathogens including Mycobacterium tuberculosis. The most common biosynthetic route involves trehalose-6-phosphate (T6P) synthase OtsA and T6P phosphatase OtsB that generate trehalose from ADP/UDP-glucose and glucose-6-phosphate. In order to assess the drug target potential of T6P phosphatase, we generated a conditional mutant of M. tuberculosis allowing the regulated gene silencing of the T6P phosphatase gene otsB2...
December 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27936224/change-in-serum-bilirubin-level-as-a-predictor-of-incident-metabolic-syndrome
#16
You-Bin Lee, Seung-Eun Lee, Ji Eun Jun, Jae Hwan Jee, Ji Cheol Bae, Sang-Man Jin, Jae Hyeon Kim
AIM: Serum bilirubin level was negatively associated with the prevalence of metabolic syndrome (MetS) in previous cross-sectional studies. However, bilirubin variance preceding the development of MetS has yet to be investigated. We aimed to determine the effect of change in bilirubin concentration on the risk of incident MetS in healthy Korean adults. METHODS: We conducted a retrospective longitudinal study of subjects who had undergone at least four yearly health check-ups between 2006 and 2012...
2016: PloS One
https://www.readbyqxmd.com/read/27936206/abdominal-adiposity-not-cardiorespiratory-fitness-mediates-the-exercise-induced-change-in-insulin-sensitivity-in-older-adults
#17
Gifferd Ko, Lance E Davidson, Andrea M Brennan, Miu Lam, Robert Ross
Abdominal obesity and low cardiorespiratory fitness (CRF) are associated with insulin resistance in older adults. Exercise is associated with improvement in insulin sensitivity. Whether this association is mediated by change in CRF and/or abdominal obesity is unclear. The current study is a secondary analysis of data from a randomized controlled trial in Kingston, Ontario. Sedentary older adults (60-80 years) (N = 80) who completed the exercise (N = 59) or control (N = 21) conditions for 6 months were included...
2016: PloS One
https://www.readbyqxmd.com/read/27936204/serotypes-and-antimicrobial-resistance-in-salmonella-enterica-recovered-from-clinical-samples-from-cattle-and-swine-in-minnesota-2006-to-2015
#18
Samuel Hong, Albert Rovira, Peter Davies, Christina Ahlstrom, Petra Muellner, Aaron Rendahl, Karen Olsen, Jeff B Bender, Scott Wells, Andres Perez, Julio Alvarez
Salmonellosis remains one of the leading causes of foodborne disease worldwide despite preventive efforts at various stages of the food production chain. The emergence of multi-drug resistant (MDR) non-typhoidal Salmonella enterica represents an additional challenge for public health authorities. Food animals are considered a major reservoir and potential source of foodborne salmonellosis; thus, monitoring of Salmonella strains in livestock may help to detect emergence of new serotypes/MDR phenotypes and to gain a better understanding of Salmonella epidemiology...
2016: PloS One
https://www.readbyqxmd.com/read/27936197/vascular-tone-regulation-induced-by-c-type-natriuretic-peptide-differences-in-endothelium-dependent-and-independent-mechanisms-involved-in-normotensive-and-spontaneously-hypertensive-rats
#19
Carolina Caniffi, Flavia M Cerniello, María N Gobetto, María L Sueiro, María A Costa, Cristina Arranz
Given that the role of C-type natriuretic peptide (CNP) in the regulation of vascular tone in hypertensive states is unclear, we hypothesized that impaired response of the nitric oxide system to CNP in spontaneously hypertensive rats (SHR) could affect vascular relaxation induced by the peptide in this model of hypertension, and that other endothelial systems or potassium channels opening could also be involved. We examined the effect of CNP on isolated SHR aortas, and the hindlimb vascular resistance (HVR) in response to CNP administration compared to normotensive rats...
2016: PloS One
https://www.readbyqxmd.com/read/27936194/change-in-18f-fluoromisonidazole-pet-is-an-early-predictor-of-the-prognosis-in-the-patients-with-recurrent-high-grade-glioma-receiving-bevacizumab-treatment
#20
Shigeru Yamaguchi, Kenji Hirata, Takuya Toyonaga, Kentaro Kobayashi, Yukitomo Ishi, Hiroaki Motegi, Hiroyuki Kobayashi, Tohru Shiga, Nagara Tamaki, Shunsuke Terasaka, Kiyohiro Houkin
BACKGROUND: Bevacizumab (BEV), a humanized monoclonal antibody, become a currently important chemotherapeutic option for the patients with recurrent glioma. The aim of this retrospective study is to investigate whether 18F-Fluoromisonidazole (FMISO) PET have the potential to detect BEV-resistant gliomas in the early-stage. METHODS: We reviewed the FMISO PET and MRI appearances before and 3 to 4 courses after BEV treatment on 18 recurrent glioma patients. FMISO accumulation was assessed by visual inspection and semi-quantitative values which were tumor-to-normal (T/N) ratio and hypoxic volume...
2016: PloS One
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