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https://www.readbyqxmd.com/read/28449422/the-effect-of-anti-reflux-therapy-on-patients-diagnosed-with-minor-disorders-of-peristalsis-in-high-resolution-manometry
#1
Joonho Jeong, Sung Eun Kim, Moo In Park, Seun Ja Park, Won Moon, Jae Hyun Kim, Kyoungwon Jung, Youn Jung Choi, Jun Yeob Lee, Young Dal Lee
Background/Aims: Minor disorders of peristalsis are esophageal motility disorders categorized by the Chicago Classification (CC), version 3.0, which was announced in 2014. This study evaluated the efficacy of anti-reflux therapy in patients with minor peristaltic disorders. Methods: Patients with minor peristaltic disorders in accordance with CC v3.0 were included. We reviewed the medical records of patients with esophageal high-resolution manometry findings, and investigated the demographic and clinical information as well as the medical therapy...
April 25, 2017: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/28449240/bmp-signaling-in-pulmonary-hypertension-advances-and-therapeutic-implications
#2
Kai Yang, Jian Wang, Wenju Lu
Bone morphogenetic protein (BMP)-mediated signaling pathway plays critical roles in pulmonary hypertension (PH) development and progression. The typical BMP signaling mostly involve BMP ligands, specific transmembrane serine/threonine kinase receptors, cellular responsive kinases and secreted antagonists. As more and more studies have been conducted, the specific protective or pathogenic roles of these molecules within all these subgroups of BMP signaling have been continuously uncovered. Based on these evidences, specific strategies have been designed by targeting these factors as novel treatment approach against PH...
April 27, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28448900/dual-responsive-magnetic-composite-nanogels-for-thermo-chemotherapy
#3
S Indulekha, P Arunkumar, D Bahadur, R Srivastava
With the onset of hyperthermia and their advantage in increasing vascular perfusion and permeability in the cancer milieu, thermo-responsive polymers have become an attractive candidate for designing therapeutic nano-vehicles for targeted on-demand delivery of bioactive agents. For this purpose, we developed a dual (thermo- and pH-) responsive nanotherapeutic composite system rendering a combinational therapy of hyperthermia mediated drug delivery. This composite system comprises of magnetic chitosan-g-PNVCL (MCP) polymeric nanogels loaded with anticancer drug, Doxorubicin (DOX)...
April 19, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28448847/lactic-acid-fermentation-of-human-urine-to-improve-its-fertilizing-value-and-reduce-odour-emissions
#4
N Andreev, M Ronteltap, B Boincean, M Wernli, E Zubcov, N Bagrin, N Borodin, P N L Lens
During storage of urine, urea is biologically decomposed to ammonia, which can be lost through volatilization and in turn causes significant unpleasant smell. In response, lactic acid fermentation of urine is a cost-effective technique to decrease nitrogen volatilization and reduce odour emissions. Fresh urine (pH = 5.2-5.3 and NH4(+)-N = 1.2-1.3 g L(-1)) was lacto-fermented for 36 days in closed glass jars with a lactic acid bacterial inoculum from sauerkraut juice and compared to untreated, stored urine...
April 24, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28445822/identification-of-the-inactivating-factors-and-mechanisms-exerted-on-ms2-coliphage-in-concentrated-synthetic-urine
#5
Wakana Oishi, Daisuke Sano, Loic Decrey, Syunsuke Kadoya, Tamar Kohn, Naoyuki Funamizu
Volume reduction (condensation) is a key for the practical usage of human urine as a fertilizer because it enables the saving of storage space and the reduction of transportation cost. However, concentrated urine may carry infectious disease risks resulting from human pathogens frequently present in excreta, though the survival of pathogens in concentrated urine is not well understood. In this study, the inactivation of MS2 coliphage, a surrogate for single-stranded RNA human enteric viruses, in concentrated synthetic urine was investigated...
April 23, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28445189/proton-pump-inhibitor-responsive-esophageal-eosinophilia-still-a-valid-diagnosis
#6
Javier Molina-Infante, Pedro L Gonzalez-Cordero, Alfredo J Lucendo
PURPOSE OF REVIEW: To update rapidly evolving concepts regarding the controversial entity of 'proton pump inhibitor (PPI)-responsive esophageal eosinophilia,' referring to patients with clinical, endoscopic and histologic features of eosinophilic esophagitis (EoE) who achieve remission on PPI therapy. RECENT FINDINGS: Up to half of pediatric and adult patients with typical EoE symptoms and histology achieve clinico-pathologic remission on PPI therapy, irrespective of whether esophageal pH monitoring demonstrates abnormal acid reflux...
April 25, 2017: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/28444822/triplex-dna-nanostructures-from-basic-properties-to-applications
#7
Yuwei Hu, Alessandro Cecconello, Andrea Idili, Francesco Ricci, Itamar Willner
Triplex nucleic acids attract recent interest as part of the rich "tool-box" of structures used to develop DNA-based nanostructures and materials. This review addresses the use of DNA triplexes to assemble sensing platforms and molecular switches. Furthermore, the pH-induced, switchable assembly and dissociation of triplex DNA-bridged nanostructures are presented. Specifically, the aggregation/deaggregation of nanoparticles and the reversible oligomerization of "origami" tiles or DNA circles are described. Also, the use of triplex-DNA structures as functional units to assemble pH-responsive systems and materials are presented...
April 26, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28444794/protection-of-protein-from-ruminal-degradation-by-alkali-induced-oxidation-of-chlorogenic-acid-in-sunflower-meal
#8
V Bongartz, C Böttger, N Wilhelmy, N Schulze-Kaysers, K-H Südekum, A Schieber
Lactating ruminants require an adequate supply of absorbable amino acids for the synthesis of milk protein from two sources, that is crude protein (CP) synthesized microbially in the rumen and ruminally undegraded CP (RUP) from feed which can both be digested in the small intestine. Several chemical and physical methods have been identified as being effective in increasing the proportion of RUP of total CP of a feedstuff, yet there is a continuing need for developing and establishing methods which protect feed protein from ruminal degradation with acceptable expenditure of labour and other costs...
April 26, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28444644/ponatinib-in-japanese-patients-with-philadelphia-chromosome-positive-leukemia-a-phase-1-2-study
#9
Arinobu Tojo, Taiichi Kyo, Kazuhito Yamamoto, Hirohisa Nakamae, Naoto Takahashi, Yukio Kobayashi, Tetsuzo Tauchi, Shinichiro Okamoto, Koichi Miyamura, Kiyohiko Hatake, Hiromi Iwasaki, Itaru Matsumura, Noriko Usui, Tomoki Naoe, Meera Tugnait, Narayana I Narasimhan, Stephanie Lustgarten, Heinrich Farin, Frank Haluska, Kazuma Ohyashiki
In this ongoing Phase 1/2 study (NCT01667133), we evaluated ponatinib and assessed its recommended dose in Japanese patients with chronic myeloid leukemia (CML) resistant/intolerant to dasatinib or nilotinib, or with Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph(+)ALL) resistant/intolerant to ≥1 tyrosine kinase inhibitor (TKI). The primary endpoints were safety of the recommended dose (Phase 1) and major cytogenetic response (MCyR) by 12 months in chronic-phase CML (CP-CML) patients or major hematologic response (MaHR) by 6 months in patients with advanced phase disease (Phase 2)...
April 25, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28444596/response-surface-design-for-accumulation-of-selenium-by-different-lactic-acid-bacteria
#10
Jingpeng Yang, Yao Li, Li Zhang, Mingtao Fan, Xinyuan Wei
The accumulation of selenium (Se) by Lactobacillus delbrueckii ssp. bulgaricus (Lb) and Streptococcus thermophilus (St) at the different cultivation conditions, including initial pH, inoculum dose (%), and temperature (°C), was investigated in this work. Se enrichment efficiency was optimized using the Design-Expert software for response surface methodology on a basis of single-factor experiment. The antioxidant activities of Se-enriched Lactic acid bacteria (LAB) were also investigated. The qualitative analysis of Se-enriched LAB was performed by FT-IR spectra...
May 2017: 3 Biotech
https://www.readbyqxmd.com/read/28443918/ph-responsiveness-of-hydrogels-formed-by-telechelic-polyampholytes
#11
Margarita A Dyakonova, George Gotzamanis, Bart-Jan Niebuur, Natalya S Vishnevetskaya, Konstantinos N Raftopoulos, Zhenyu Di, Sergey K Filippov, Constantinos Tsitsilianis, Christine M Papadakis
We investigate the influence of pH on the rheological and structural properties of hydrogels formed by hydrophobic association of the sticky ends of the triblock terpolymer poly(methyl methacrylate)-b-poly(2-(diethylamino)ethyl methacrylate-co-methacrylic acid)-b-poly(methyl methacrylate) (PMMA-b-P(DEA-co-MAA)-b-PMMA). The middle block is a weak polyampholyte having a pH dependent charge density and sign, which enables tuning of the rheological and structural properties by pH variation. Small-angle neutron scattering (SANS) studies of solutions in D2O at 0...
April 26, 2017: Soft Matter
https://www.readbyqxmd.com/read/28443832/protective-buffering-capacity-of-restorative-dental-materials-in-vitro
#12
Markus Fuss, Michael J Wicht, Thomas Attin, Sonja H M Derman, Michael J Noack
PURPOSE: To investigate the buffering capacity of restorative materials during a simulated carious and intrinsic erosive attack. MATERIALS AND METHODS: Cavities with a volume of 130 μl were milled (Cerec MC XL) out of blocks of Ceram X Mono (CM), Quixfil (QX), Filtek Supreme (FS), Apa Fill 3 (AF), an experimental dual-curing composite containing a bioactive glass (EX), Dyract eXtra (DY), Beautifil (BE), Equia Fil (EQ), Telio CAD (TL) (negative control), TheraCal (TC; positive control), and extracted teeth (ED)...
April 25, 2017: Journal of Adhesive Dentistry
https://www.readbyqxmd.com/read/28443362/effect-of-the-side-chain-spacer-structure-on-the-ph-responsive-properties-of-polycarboxylates
#13
Atsushi Harada, Ryoma Teranishi, Eiji Yuba, Kenji Kono
The properties of stimuli-responsive polymers change significantly with changes to their environment, such as temperature and pH. This behavior can be utilized for the preparation of stimuli-responsive carriers for efficient cytosolic delivery of active drugs. Among the possible environmental conditions, pH is one of the most useful stimuli because the pH in an endosome is lower than under physiological conditions, depending on endosomal development. This pH difference is an important factor in the design of pH-responsive polymers, which can be used to enhance the transport of endocytosed drugs from the endosomal compartment to the cytoplasm...
April 26, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28442903/magnetic-and-ph-dual-responsive-mesoporous-silica-nanocomposites-for-effective-and-low-toxic-photodynamic-therapy
#14
Jieqiong Zhan, Zhiqiang Ma, Dan Wang, Xinfang Li, Xiangui Li, Lijing Le, Anfeng Kang, Pengwei Hu, Lan She, Feng Yang
Nonspecific targeting, large doses and phototoxicity severely hamper the clinical effect of photodynamic therapy (PDT). In this work, superparamagnetic Fe3O4 mesoporous silica nanoparticles grafted by pH-responsive block polymer polyethylene glycol-b-poly(aspartic acid) (PEG-b-PAsp) were fabricated to load the model photosensitizer rose bengal (RB) in the aim of enhancing the efficiency of PDT. Compared to free RB, the nanocomposites (polyethylene glycol-b-polyaspartate-modified rose bengal-loaded magnetic mesoporous silica [RB-MMSNs]) could greatly enhance the cellular uptake due to their effective endocytosis by mouse melanoma B16 cell and exhibited higher induced apoptosis although with little dark toxicity...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28442730/exploration-of-the-relationship-between-biogas-production-and-microbial-community-under-high-salinity-conditions
#15
Shaojie Wang, Xiaocong Hou, Haijia Su
High salinity frequently causes inhibition and even failure in anaerobic digestion. To explore the impact of increasing NaCl concentrations on biogas production, and reveal the microbial community variations in response to high salinity stress, the Illumina high-throughput sequencing technology was employed. The results showed that a NaCl concentration of 20 g/L (H group) exhibited a similar level of VFAs and specific CO2 production rate with that in the blank group, thus indicating that the bacterial activity in acidogenesis might not be inhibited...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28442708/the-complete-12%C3%A2-mb-genome-and-transcriptome-of-nonomuraea-gerenzanensis-with-new-insights-into-its-duplicated-magic-rna-polymerase
#16
Valeria D'Argenio, Mauro Petrillo, Daniela Pasanisi, Caterina Pagliarulo, Roberta Colicchio, Adelfia Talà, Maria Stella de Biase, Mario Zanfardino, Emanuela Scolamiero, Chiara Pagliuca, Antonio Gaballo, Annunziata Gaetana Cicatiello, Piergiuseppe Cantiello, Irene Postiglione, Barbara Naso, Angelo Boccia, Miriana Durante, Luca Cozzuto, Paola Salvatore, Giovanni Paolella, Francesco Salvatore, Pietro Alifano
In contrast to the widely accepted consensus of the existence of a single RNA polymerase in bacteria, several actinomycetes have been recently shown to possess two forms of RNA polymerases due the to co-existence of two rpoB paralogs in their genome. However, the biological significance of the rpoB duplication is obscure. In this study we have determined the genome sequence of the lipoglycopeptide antibiotic A40926 producer Nonomuraea gerenzanensis ATCC 39727, an actinomycete with a large genome and two rpoB genes, i...
December 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/28442665/the-amino-acid-at-position-624-in-the-glycoprotein-of-sftsv-severe-fever-with-thrombocytopenia-virus-plays-a-critical-role-in-low-ph-dependent-cell-fusion-activity
#17
Yoshimi Tsuda, Manabu Igarashi, Ryo Ito, Sanae Nishio, Kenta Shimizu, Kumiko Yoshimatsu, Jiro Arikawa
Severe fever with thrombocytopenia syndrome virus (SFTSV) is a novel phlebovirus responsible for causing an emerging zoonotic disease. We previously established subclones from SFTSV strain YG1 based on differences in low-pH-dependent cell fusion activities and found two amino acid substitutions, Y328H and R624W, in the envelope glycoprotein (GP) of high fusion subclones. In this study, we show that transiently expressed GP with the R624W mutation, but not the Y328H mutation, induced cell fusion under acidic conditions...
2017: Biomedical Research
https://www.readbyqxmd.com/read/28442004/multi-response-optimization-of-process-parameters-for-imidacloprid-removal-by-reverse-osmosis-using-taguchi-design
#18
Nevim Genç, Esra Can Doğan, Ali Oğuzhan Narcı, Emine Bican
  In this study, a multi-response optimization method using Taguchi's robust design approach is proposed for imidacloprid removal by reverse osmosis. Tests were conducted with different membrane type (BW30, LFC-3, CPA-3), transmembrane pressure (TMP = 20, 25, 30 bar), volume reduction factor (VRF = 2, 3, 4), and pH (3, 7, 11). Quality and quantity of permeate are optimized with the multi-response characteristics of the total dissolved solid (TDS), conductivity, imidacloprid, and total organic carbon (TOC) rejection ratios and flux of permeate...
May 1, 2017: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/28441744/production-of-laccase-by-a-new-myrothecium-verrucaria-md-r-16-isolated-from-pigeon-pea-cajanus-cajan-l-millsp-and-its-application-on-dye-decolorization
#19
Jiao Sun, Na Guo, Li-Li Niu, Qing-Fang Wang, Yu-Ping Zang, Yuan-Gang Zu, Yu-Jie Fu
The present study was conducted to screen a laccase-producing fungal endophyte, optimize fermentation conditions, and evaluate the decolorization ability of the laccase. A new fungal endophyte capable of laccase-producing was firstly isolated from pigeon pea and identified as Myrothecium verrucaria based on a ITS-rRNA sequences analysis. Meanwhile, various fermentation parameters on the laccase production were optimized via response surface methodology (RSM). The optimal fermentation conditions were a fermentation time of five days, temperature 30 °C and pH 6...
April 23, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28441602/fluoride-and-iodine-enrichment-in-groundwater-of-north-china-plain-evidences-from-speciation-analysis-and-geochemical-modeling
#20
Junxia Li, Hailing Zhou, Kun Qian, Xianjun Xie, Xiaobin Xue, Yijun Yang, Yanxin Wang
To better understand the enrichment of fluoride and iodine in groundwater at North China Plain (NCP), speciation analysis and geochemical modeling were conducted to identify the key hydrochemical processes controlling their mobilization in groundwater system. Groundwater fluoride and iodine concentrations ranged from 0.18 to 5.59mg/L and from 1.51 to 1106μg/L, respectively, and approximately 63% and 32.3% of groundwater fluoride and iodine were higher than the guidelines for drinking water (1.5mg/L and 150μg/L)...
April 22, 2017: Science of the Total Environment
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