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Yang Zhuo, Yun Han, Qiliang Qu, Yuqin Cao, Dangcong Peng, Yuyou Li
The feasibility of ammonia pre-separation during the thermal-alkaline pretreatment (TAP) of waste activated sludge was evaluated to mitigate ammonia inhibition during high solid anaerobic digestion (HSAD). The results showed that the TAP increased the organics hydrolysis rate as much as 77% compared to the thermal hydrolysis pretreatment (THP). The production and separation of the ammonia during the TAP exhibited a linear relationship with the hydrolysis of organics and the Emerson model. The pre-separation ratio of the free ammonia nitrogen exceeded 98...
March 27, 2018: Water Research
Sophia Kapchinsky, Madhusudanarao Vuda, Kayla Miguez, Daren Elkrief, Angela R de Souza, Carolyn J Baglole, Sudhakar Aare, Norah J MacMillan, Jacinthe Baril, Paul Rozakis, Vita Sonjak, Charlotte Pion, Mylène Aubertin-Leheudre, Jose A Morais, R Thomas Jagoe, Jean Bourbeau, Tanja Taivassalo, Russell T Hepple
A neurological basis for the fast fibre shift and atrophy seen in limb muscle of patients with chronic obstructive pulmonary disease (COPD) has not been considered previously. The objective of our study was: (i) to determine if denervation contributes to fast fibre shift and muscle atrophy in COPD; and (ii) to assess using a preclinical smoking mouse model whether chronic tobacco smoke (TS) exposure could initiate denervation by causing neuromuscular junction (NMJ) degeneration. Vastus lateralis muscle biopsies were obtained from severe COPD patients (n = 10 with low fat free mass index [FFMI], 65 y; n = 15 normal FFMI, 65 y) and healthy age- and activity-matched non-smoker control subjects (CON; n = 11, 67 y), to evaluate morphological and transcriptional markers of denervation...
April 16, 2018: Journal of Physiology
Bharadwaja Vadloori, A K Sharath, N Prakash Prabhu, Radheshyam Maurya
OBJECTIVE: Present in silico study was carried out to explore the mode of inhibition of Leishmania donovani dihydrofolate reductase-thymidylate synthase (Ld DHFR-TS) enzyme by Withaferin-A, a withanolide isolated from Withania somnifera. Withaferin-A (WA) is known for its profound multifaceted properties, but its antileishmanial activity is not well understood. The parasite's DHFR-TS enzyme is diverse from its mammalian host and could be a potential drug target in parasites. RESULTS: A 3D model of Ld DHFR-TS enzyme was built and verified using Ramachandran plot and SAVES tools...
April 16, 2018: BMC Research Notes
Sridar Ashwin Sri Bala, Irulappan Madhumathi, Sengottuvel Vinodha, M Hussain Munavar
As of date the two temperature sensitive mutations isolated in pheST operon include pheS5 (G293 →A293 ) and pheT354. Recently, we reported that G673 of pheS defines a hot spot for intragenic suppressors of pheS5. In this investigation, in 13 independent experiments, a collection of temperature sensitive mutants were isolated by localized mutagenesis. Complementation using clones bearing pheS+ , pheT+ , and pheS+ T+ indicated that 34 mutants could harbor lesion(s) in pheS and four could be in pheT and one mutant might be a double mutant...
April 16, 2018: Journal of Basic Microbiology
Hugang Li, Meng Wang, Xinfeng Wang, Yuanhui Zhang, Haifeng Lu, Na Duan, Baoming Li, Dongming Zhang, Taili Dong, Zhidan Liu
Microalgae can not only purify and recover the nutrients from wastewater, but also be harvested as wet biomass for the production of biocrude oil via hydrothermal liquefaction (HTL). Chlorella sp. cultivated in the ultrafiltration (UF) membrane treated anaerobic digestion (AD) liquid digestate of chicken manure was used as the feedstock in this study. The present study characterized the products and investigated the elemental migration during HTL of Chlorella sp. fed with AD effluent wastewater (WW) and BG11 standard medium (ST) in 100mL and 500mL reactors under different operational conditions...
April 13, 2018: Science of the Total Environment
Francesco Plotti, Stella Capriglione, Giuseppe Scaletta, Daniela Luvero, Salvatore Lopez, Francesca Fiori Nastro, Corrado Terranova, Carlo De Cicco Nardone, Roberto Montera, Roberto Angioli
OBJECTIVE: In 2013, our group assessed a risk stratification tool of endometrial cancer (EC), called REM (Risk of Endometrial Malignancy). A well known risk factor for EC is body mass index (BMI). In fact, (BMI > 30 and <35 kg/m2) and severe obesity (BMI > 35 kg/m2) were associated with a 2.6-fold and a 4.7-fold increase in EC risk, respectively. Therefore, in the present study we aim to improve the performance of REM, including BMI and developing a new scoring system, called REM-B (Risk of Endometrial Malignancy score associated to BMI), to classify patients into high risk or low risk groups for EC...
April 7, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
Afsaneh Nouri, Mohammad Tavakkoli Yaraki, Mohammad Ghorbanpour, Shaobin Wang
In this study, biodegradable κ-carrageenan films containing 3% nanoclay and different amounts of rosemary extract (1, 2 and 3% v/v) were fabricated and their physical, thermal, and mechanical properties, as well as antimicrobial activity were examined. The film thickness did not change significantly by the addition of rosemary extract. UV light transmission value in the control film was 20.46%, while the value for the film with 3% v/v rosmary extract reduced to 0.13%. Elongation at break (EB%) and tensile strength (TS) of the carrageenan film without the extract were 19...
April 13, 2018: International Journal of Biological Macromolecules
Sophie Geoffron, Walid Abi Habib, Sandra Chantot-Bastaraud, Béatrice Dubern, Virginie Steunou, Salah Azzi, Alexandra Afenjar, Tiffanny Busa, Ana P Canton, Christel Chalouhi, Marie-Noëlle Dufourg, Blandine Esteva, Mélanie Fradin, David Geneviève, Solveig Heide, Bertrand Isidor, Agnès Linglart, Fanny Morice Picard, Catherine Naud-Saudreau, Isabelle Oliver Petit, Nicole Philip, Catherine Pienkowski, Marlène Rio, Sylvie Rossignol, Maithé Tauber, Julien Thevenon, Thuy-Ai Vu-Hong, Madeleine D Harbison, Jennifer Salem, Frédéric Brioude, Irène Netchine, Eloïse Giabicani
Context: Silver-Russell syndrome (SRS) (mainly secondary to 11p15 molecular disruption) and Temple syndrome (TS) (secondary to 14q32.2 molecular disruption) are imprinting disorders with phenotypic (prenatal and postnatal growth retardation, early feeding difficulties) and molecular overlap. Objective: To describe the clinical overlap between SRS and TS and extensively study the molecular aspects of TS. Patients: We retrospectively collected data on 28 patients with disruption of the 14q32...
April 11, 2018: Journal of Clinical Endocrinology and Metabolism
Julia Böck, Silke Appenzeller, Larissa Haertle, Tamara Schneider, Andrea Gehrig, Jörg Schröder, Simone Rost, Beat Wolf, Claus R Bartram, Christian Sutter, Thomas Haaf
To evaluate the role of constitutive epigenetic changes in normal body cells of BRCA1/BRCA2-mutation negative patients, we have developed a deep bisulfite sequencing assay targeting the promoter regions of 8 tumor suppressor (TS) genes (BRCA1, BRCA2, RAD51C, ATM, PTEN, TP53, MLH1, RB1) and the estrogene receptor gene (ESR1), which plays a role in tumor progression. We analyzed blood samples of two breast cancer (BC) cohorts with early onset (EO) and high risk (HR) for a heterozygous mutation, respectively, along with age-matched controls...
April 16, 2018: International Journal of Cancer. Journal International du Cancer
F Degache, A Bonjour, D Michaud, L Mondada, C J Newman
PURPOSE: The objective of study was to determine the effect of tandem ski (TS) activity on postural control and cardiac activity in children with profound intellectual and multiple disabilities (PIMDs). METHOD: Twenty children with PIMD and 20 age-matched controls (typically developed (TD) children) participated. Body segment movements were measured with inertial sensors (Physilog®) placed on the head, C7, trunk (including ECG) and pelvis with a seat reference...
April 16, 2018: Developmental Neurorehabilitation
Halley Wasserman, Philippe F Backeljauw, Jane C Khoury, Heidi J Kalkwarf, Catherine M Gordon
OBJECTIVE: Osteoporosis is considered a comorbidity of adult women with Turner Syndrome (TS). Limited data are available on fracture prevalence in girls and women with this diagnosis. We aimed to determine the prevalence of fractures in individuals with TS in the United States and identify risk factors for fracture. DESIGN: Girls and women with TS were invited to participate in an anonymous, self-report, national survey from November 2016 to March 2017. Non-TS controls were obtained through direct contacts of TS participants...
April 15, 2018: Clinical Endocrinology
Tiago V Maia, Vasco A Conceição
Tourette syndrome (TS) is thought to involve dopaminergic disturbances, but the nature of those disturbances remains controversial. Existing hypotheses suggest that TS involves 1) supersensitive dopamine receptors, 2) overactive dopamine transporters that cause low tonic but high phasic dopamine, 3) presynaptic dysfunction in dopamine neurons, or 4) dopaminergic hyperinnervation. We review evidence that contradicts the first two hypotheses; we also note that the last two hypotheses have traditionally been considered too narrowly, explaining only small subsets of findings...
March 9, 2018: Biological Psychiatry
Yao Lu, Deliang He, Huibin Lei, Jun Hu, Houqiang Huang, Huiying Ren
Taro stalks (TS) were modified by diethylenetriamine (DETA) to obtain the modified taro stalks adsorbents (recorded as MTSA). This kind of raw material is unprecedented and the method of modification is relatively simple. The physicochemical properties of MTSA were characterized by scanning electron microscope (SEM), FTIR, and zeta potential analyzer. The capacity of MTSA for adsorbing heavy metals under different influencing factors was tested by UV-visible spectrophotometer. The results indicated that the gaps between the microspheres of MTSA are more, which are conducive to adsorption...
April 14, 2018: Environmental Science and Pollution Research International
Ranveig Flatabø, Akshay Agarwal, Richard Hobbs, Martin Møeller Greve, Bodil Holst, Karl K Berggren
Helium ion beam lithography (HIL) is an emerging nanofabrication technique. It benefits from a reduced interaction volume compared to that of an electron beam of similar energy, and hence reduced long-range scattering (proximity effect), higher resist sensitivity and potentially higher resolution. Furthermore, the small angular spread of the helium ion beam gives rise to a large depth of field. This should enable patterning on tilted and curved surfaces without the need of any additional adjustments, such as laser-auto focus...
April 13, 2018: Nanotechnology
Michel Polak, Daniel Konrad, Birgitte Tønnes Pedersen, Gediminas Puras, Marta Šnajderová
BACKGROUND: We investigated time trends in age, gender, growth hormone (GH) dose and height standard deviation score (SDS) in children with GH deficiency (GHD), born small for gestational age (SGA) or with Turner syndrome (TS) starting GH treatment. METHODS: Data were obtained from children enrolled in the NordiNet® International Outcome Study (IOS) between 2006 and 2015 in the Czech Republic, France, Germany, Serbia and Montenegro (all indications), and Switzerland and the UK (GHD only)...
April 13, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
Ganesh Kumar Munirathinam, Bhupesh Kumar, Anand Kumar Mishra
Asymmetrical septal occluder device (ASOD) has made percutaneous closure of ventricular septal defect an easy and effective management option. Although there are reports of aortic and tricuspid valvular regurgitation after deployment of ASOD, only few cases of tricuspid stenosis (TS) has been reported so far in the literature. We report a case of malaligned ASOD that occurred after successful device closure resulting in TS along with mild tricuspid and aortic regurgitation requiring surgical retrieval. Transesophageal echocardiography played crucial role in detecting the cause of tricuspid valve dysfunction besides providing continuous monitoring during the procedure...
April 2018: Annals of Cardiac Anaesthesia
Rim Gheribi, Laura Puchot, Pierre Verge, Najeh Jaoued-Grayaa, Mohamed Mezni, Youssef Habibi, Khaoula Khwaldia
Mucilage polysaccharide was extracted from Opuntia ficus-indica cladodes (Cactaceae) and its composition was determined by sugar analysis using HPLC-RID and its structural features were elucidated by FTIR and1 H and13 C NMR. Films from the extracted mucilage were loaded at 40% (w/w) with glycerol, sorbitol, PEG 200 or PEG 400. The physical, thermal, mechanical and barrier properties of the obtained films were investigated. The highest water vapor barrier properties of plasticized mucilage films were obtained with sorbitol reaching water vapor permeability (WVP) values up to 3 times lower than the other films...
June 15, 2018: Carbohydrate Polymers
Xia Wang, Shengjun Xu, Shanghua Wu, Shugeng Feng, Zhihui Bai, Guoqiang Zhuang, Xuliang Zhuang
Ammonia (NH3 ) volatilization is one of the primary pathways of nitrogen (N) loss from soils after chemical fertilizer is applied, especially from the alkaline soils in Northern China, which results in lower efficiency for chemical fertilizers. Therefore, we conducted an incubation experiment using an alkaline soil from Tianjin (pH8.37-8.43) to evaluate the suppression effect of Trichoderma viride (T. viride) biofertilizer on NH3 volatilization, and compared the differences in microbial community structure among all samples...
April 2018: Journal of Environmental Sciences (China)
Ewelina Jamróz, Lesław Juszczak, Mateusz Kucharek
Lavender essential oil (OEL) was added to starch, furcellaran and gelatin (S/F/G) films in concentrations of 2%, 4% and 6%. The films were examined in terms of physical properties (thickness, density, water solubility, water absorption and degree of swelling) and mechanical properties (tensile strength, elongation at break). The test results show that the film thickness increased upon addition of OEL. The solubility, water absorption and degree of swelling of the film decreased with increasing concentration of oils...
April 5, 2018: International Journal of Biological Macromolecules
Jiaye Wang, Jiaqi Chen, Ye Jiang, Yingying Shi, Jianyun Zhu, Chunfeng Xie, Shanshan Geng, Jieshu Wu, Qi Zhang, Xiaoqian Wang, Yu Meng, Yuan Li, Yue Chen, Wanshuang Cao, Xueqi Wang, Caiyun Zhong, Xiaoting Li
Lung cancer is the leading cause of cancer-related death worldwide; tobacco smoke (TS) constitutes the main causes of lung cancer. Acquisition of cancer stem cells (CSCs)-like properties is the essential progression for the initiation of lung cancer. However, the mechanisms for tobacco smoke-induced lung carcinogenesis remain elusive. In the present study, we demonstrated that long-term exposure of human bronchial epithelial (HBE) cells to TS resulted in malignant transformation and acquisition of CSC-like properties...
April 4, 2018: Toxicology Letters
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