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https://www.readbyqxmd.com/read/28545283/-clinical-efficacy-and-safety-of-thrombolytic-treatment-with-reteplase-in-patients-with-intermediate-risk-acute-pulmonary-embolism
#1
H G Zhao, S X Wang, Z N Lu, X X Yan, Z C Lyu, F H Peng, Y Wu, X Gao, L Hua, Z C Jing, X Q Xu
Objective: To assess the efficacy and safety of thrombolytic treatment with reteplase in patients with intermediate-risk acute pulmonary embolism. Methods: Ten consecutive patients with intermediate-risk acute pulmonary embolism who received thrombolytic treatment with reteplase at Thrombosis and Vascular Medicine Center, Fuwai Hospital from March to November in 2016 were included.Vital signs, right ventricular diameter, systolic pulmonary artery pressure, and biochemical markers were assessed before and after thrombolytic therapy with reteplase, and bleeding complications were also observed during 3 months follow up...
April 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28545157/the-aminoestrogen-prolame-increases-recognition-memory-and-hippocampal-neuronal-spine-density-in-aged-mice
#2
Alfonso Diaz, Samuel Treviño, Rubén Vázquez-Roque, Berenice Venegas, Blanca Espinosa, Gonzalo Flores, Juan Manuel Fernández-G, Luis F Montaño, Jorge Guevara
The aging brain shows biochemical and morphological changes in the dendrites of pyramidal neurons from the limbic system associated with memory loss. Prolame (N-(3-hydroxy-1,3,5 (10) -estratrien-17β-yl) -3-hydroxypropylamine) is a non-feminizing aminoestrogen with antithrombotic activity that prevents neuronal deterioration, oxidative stress and neuroinflammation. Our aim was to evaluate the effect of prolame on motor and cognitive processes, as well as its influence on the dendritic morphology of neurons at the CA1, CA3 and granule cells of the dentate gyrus (DG) regions of hippocampus (HP), and medium spiny neurons of the nucleus accumbens (NAcc) of aged mice...
May 25, 2017: Synapse
https://www.readbyqxmd.com/read/28545014/paracetamol-causes-endocrine-disruption-and-hepatotoxicity-in-male-fish-rhamdia-quelen-after-subchronic-exposure
#3
Izonete Cristina Guiloski, João Luiz Coelho Ribas, Laercio Dante Stein Piancini, Ana Carolina Dagostim, Silvana Maris Cirio, Luis Fernando Fávaro, Suelen Lúcio Boschen, Marta Margarete Cestari, Cláudio da Cunha, Helena Cristina Silva de Assis
Paracetamol is one of the most widely sold non-prescription drugs. This study aimed to evaluate the effects of the paracetamol on reproductive, biochemical, genetic, histopathological and hematogical biomarkers by waterborne exposure. Male fish of Rhamdia quelen were exposed to environmental concentrations of paracetamol (0, 0.25, 2.5μg/L) in a semi-static bioassay for 21days. Hemoglobin and hematocrit were reduced upon exposure to 0.25μg/L of paracetamol. Leukocytes and thrombocytes increased after paracetamol exposure...
May 8, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28544996/temperate-bacteriophages-as-regulators-of-host-behavior
#4
REVIEW
Tal Argov, Gil Azulay, Anna Pasechnek, Olga Stadnyuk, Shai Ran-Sapir, Ilya Borovok, Nadejda Sigal, Anat A Herskovits
Bacteriophages are ubiquitous and affect most facets of life, from evolution of bacteria, through ecology and global biochemical cycling to human health. The interactions between phages and bacteria often lead to biological novelty and an important milestone in this process is the ability of phages to regulate their host's behavior. In this review article, we will focus on newly reported cases that demonstrate how temperate phages regulate bacterial gene expression and behavior in a variety of bacterial species, pathogenic and environmental...
May 22, 2017: Current Opinion in Microbiology
https://www.readbyqxmd.com/read/28544969/prior-treatment-with-non-anti-tb-antibiotics-and-the-duration-of-symptoms-have-no-effect-on-diagnostics-of-tuberculous-meningitis
#5
Marcin Paciorek, Andrzej Pihowicz, Dominik Bursa, Joanna Schöntaler Humięcka, Justyna D Kowalska, Mateusz Antosiewicz, Magda E Thompson, Agata Skrzat-Wojdacz, Agnieszka Bednarska, Andrzej Horban
PURPOSE: Our objective was to investigate whether diagnosis of tuberculous meningitis (TBM) with microbiological and molecular analysis was affected by prior empirical non anti tuberculosis antibiotics or by duration of symptoms before lumbar puncture. MATERIALS AND METHODS: We retrospectively evaluated medical records of patients with TBM confirmed by positive culture, nucleic acid amplification techniques (NAATs) or Ehrlich-Ziehl-Neelsen staining (EZNs) from the cerebrospinal fluid (CSF) or by characteristic results of biochemical analysis of CSF combined with a typical clinical manifestation...
May 22, 2017: Advances in Medical Sciences
https://www.readbyqxmd.com/read/28544921/in-situ-formed-copper-nanoparticles-templated-by-tdt-mediated-dna-for-enhanced-spr-sensor-based-dna-assay
#6
Pei-Xin Yuan, Sheng-Yuan Deng, Chen-Yu Zheng, Serge Cosnier, Dan Shan
For the efficient surface plasmon resonance (SPR)-based DNA assay researching, signal amplification tactics were absolutely necessary. In this work, a sensitive SPR-DNA sensor was developed by employing in situ synthesis of copper nanoparticles (CuNPs) templated by poly-T sequences DNA from terminal deoxynucleotidyl transferase (TdT)-mediated extension, and synergistically with nano-effect deposition as the mass relay. The objective of this strategy was manifold: firstly, tDNA hybridized with the optimal designed probes to active the TdT-mediated DNA extension onto the surface of SPR chip, resulted a long poly-T sequences ssDNA chain in dsDNA terminal onto surface of gold chip and characterized by SPR signal amplitudes...
May 18, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28544880/systems-wide-studies-uncover-commander-a-multiprotein-complex-essential-to-human-development
#7
REVIEW
Anna L Mallam, Edward M Marcotte
Recent mass spectrometry maps of the human interactome independently support the existence of a large multiprotein complex, dubbed "Commander." Broadly conserved across animals and ubiquitously expressed in nearly every human cell type examined thus far, Commander likely plays a fundamental cellular function, akin to other ubiquitous machines involved in expression, proteostasis, and trafficking. Experiments on individual subunits support roles in endosomal protein sorting, including the trafficking of Notch proteins, copper transporters, and lipoprotein receptors...
May 24, 2017: Cell Systems
https://www.readbyqxmd.com/read/28544810/the-best-models-of-metabolism
#8
REVIEW
Eberhard O Voit
Biochemical systems are among of the oldest application areas of mathematical modeling. Spanning a time period of over one hundred years, the repertoire of options for structuring a model and for formulating reactions has been constantly growing, and yet, it is still unclear whether or to what degree some models are better than others and how the modeler is to choose among them. In fact, the variety of options has become overwhelming and difficult to maneuver for novices and experts alike. This review outlines the metabolic model design process and discusses the numerous choices for modeling frameworks and mathematical representations...
May 19, 2017: Wiley Interdisciplinary Reviews. Systems Biology and Medicine
https://www.readbyqxmd.com/read/28544806/can-soil-microbial-diversity-influence-plant-metabolites-and-life-history-traits-of-a-rhizophagous-insect-a-demonstration-in-oilseed-rape
#9
Tom Lachaise, Morgane Ourry, Lionel Lebreton, Anne-Yvonne Guillerm-Erckelboudt, Juliette Linglin, Chrystelle Paty, Valérie Chaminade, Nathalie Marnet, Julie Aubert, Denis Poinsot, Anne-Marie Cortesero, Christophe Mougel
Interactions between plants and phytophagous insects play an important part in shaping the biochemical composition of plants. Reciprocally plant metabolites can influence major life history traits in these insects and largely contribute to their fitness. Plant rhizospheric microorganisms are an important biotic factor modulating plant metabolites and adaptation to stress. While plant-insects or plant-microorganisms interactions and their consequences on the plant metabolite signature are well-documented, the impact of soil microbial communities on plant defenses against phytophagous insects remains poorly known...
May 23, 2017: Insect Science
https://www.readbyqxmd.com/read/28544763/hp30-2-a-mitochondrial-prat-protein-for-import-of-signal-sequence-less-precursor-proteins-in-arabidopsis-thaliana
#10
Claudia Rossig, John Gray, Oscar Valdes, Sachin Rustgi, Diter von Wettstein, Christiane Reinbothe, Steffen Reinbothe
Chloroplasts and mitochondria contain a family of putative preprotein and amino acid transporters designated PRAT. Here, we analyzed the role of two previously characterized PRAT protein family member, encoded by At3g49560 (HP30) and At5g24650 (HP30-2), in planta using a combination of genetic, cell biological and biochemical approaches. Expression studies and GFP tagging identified HP30-2 both in chloroplasts and mitochondria, whereas HP30 was located exclusively in chloroplasts. Biochemical evidence was obtained for an association of mitochondrial HP30-2 with two distinct protein complexes, one containing the inner membrane translocase TIM22 and the other containing an alternative NAD(P)H dehydrogenase subunit (NDC1) implicated in a respiratory complex 1-like electron transport chain...
May 22, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28544619/design-and-synthesis-of-some-acridine-piperazine-hybrids-for-the-improvement-of-cognitive-dysfunction
#11
Anuradha Sharma, Poonam Piplani
A novel series of hybrid molecules (5a-5m) was designed, synthesized and evaluated as multifunctional cholinesterase (ChE) inhibitors against cognitive dysfunction. Heterocyclic moieties acridine and piperazine were conjugated with suitable linkers in a single scaffold and the structures of the target compounds were confirmed by IR, (1) H NMR, (13) C NMR and LC-MS analysis. The pharmacological activity of synthesized compounds was evaluated using behavioral models of amnesia viz. step down passive avoidance and elevated plus maze at a dose 0...
May 25, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28544616/biochemical-isolation-of-myonuclei-employed-to-define-changes-to-the-myonuclear-proteome-that-occur-with-aging
#12
Alicia A Cutler, Eric B Dammer, Duc M Doung, Nicholas T Seyfried, Anita H Corbett, Grace K Pavlath
Skeletal muscle aging is accompanied by loss of muscle mass and strength. Examining changes in myonuclear proteins with age would provide insight into molecular processes which regulate these profound changes in muscle physiology. However, muscle tissue is highly adapted for contraction and thus comprised largely of contractile proteins making the nuclear proteins difficult to identify from whole muscle samples. By developing a method to purify myonuclei from whole skeletal muscle, we were able to collect myonuclei for analysis by flow cytometry, biochemistry, and mass spectrometry...
May 23, 2017: Aging Cell
https://www.readbyqxmd.com/read/28544527/biomarkers-associated-with-mortality-in-patients-undergoing-dialysis
#13
Ana Rebollo Rubio, Jose Miguel Morales Asencio, Mª Eugenia Pons Raventos
BACKGROUND: Survival for patients commencing renal replacement therapy is around 90% in the first year and 83% at two years after starting dialysis. The factors that appear to predict mortality are comorbidity and frailty associated with kidney disease, glomerular filtration rate, age and biochemical factors. OBJECTIVES: To analyse the condition of patients starting renal replacement therapy, based on biomarkers commonly used in clinical practice and their association with mortality, measured 6 and 12 months after initiating replacement therapy...
May 23, 2017: Journal of Renal Care
https://www.readbyqxmd.com/read/28544464/structural-and-biochemical-insights-into-the-2-o-methylation-of-pyrimidines-34-in-trna
#14
Panjiao Pang, Xiangyu Deng, Zhong Wang, Wei Xie
tRNA molecules undergo extensive modifications during their maturation process and these modifications play important cellular roles. TrmL is a tRNA-modification enzyme that catalyzes the transfer of a methyl group to the 2' hydroxyl group of the pyrimidines at the wobble position 34 in two tRNA(L)(eu) isoacceptors, but the mechanism remains elusive. In this study, we determined the crystal structure of TrmL from Thermus Thermophilus (TtTrmL) to 1.7 Å. The enzyme contains only the conserved minimal SPOUT fold, but displays distinct biochemical behaviors from its Escherichia coli counterpart EcTrmL...
May 25, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28544275/recessive-mutations-in-msto1-cause-mitochondrial-dynamics-impairment-leading-to-myopathy-and-ataxia
#15
Alessia Nasca, Chiara Scotton, Irina Zaharieva, Marcella Neri, Rita Selvatici, Olafur Thor Magnusson, Aniko Gal, David Weaver, Rachele Rossi, Annarita Armaroli, Marika Pane, Rahul Phadke, Anna Sarkozy, Francesco Muntoni, Imelda Hughes, Antonella Cecconi, György Hajnóczky, Alice Donati, Eugenio Mercuri, Massimo Zeviani, Alessandra Ferlini, Daniele Ghezzi
We report here the first families carrying recessive variants in the MSTO1 gene: compound heterozygous mutations were identified in two sisters and in an unrelated singleton case, who presented a multisystem complex phenotype mainly characterized by myopathy and cerebellar ataxia. Human MSTO1 is a poorly studied protein, suggested to have mitochondrial localization and to regulate morphology and distribution of mitochondria. As for other mutations affecting genes involved in mitochondrial dynamics, no biochemical defects typical of mitochondrial disorders were reported...
May 23, 2017: Human Mutation
https://www.readbyqxmd.com/read/28544258/incidence-and-risk-factors-for-non-alcoholic-fatty-liver-disease-a-7-year-follow-up-study-among-urban-adult-sri-lankans
#16
Madunil Anuk Niriella, Arunasalam Pathmeswaran, Shamila Thivanshi De Silva, Anuradhani Kasturiratna, Ruwan Perera, Chamila Erandaka Subasinghe, Kuleesha Kodisinghe, Chathura Piyaratna, Vithiya Rishikesawan, Anuradha Supun Dassanayaka, Arjuna Priyadarshin De Silva, Rajitha Wickramasinghe, Fumihiko Takeuchi, Norihiro Kato, Hithanadura Janaka de Silva
BACKGROUND: This study investigated incidence and risk factors for NAFLD among an adult cohort with 7-years follow-up. METHODS: The study population (age-stratified random sampling, Ragama MOH area) was screened initially in 2007 (aged 35-64 years) and re-evaluated in 2014 (aged 42-71 years). On both occasions assessed by structured interview, anthropometric measurements, liver ultrasound, biochemical and serological tests. NAFLD was diagnosed on ultrasound criteria, safe alcohol consumption and absence of hepatitis B/C markers...
May 19, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28544235/absence-of-juvenile-hormone-signalling-regulates-the-dynamic-expression-profiles-of-nutritional-metabolism-genes-during-diapause-preparation-in-the-cabbage-beetle-colaphellus-bowringi
#17
W Liu, Q-Q Tan, L Zhu, Y Li, F Zhu, C-L Lei, X-P Wang
Temperate insects have evolved diapause, a period of programmed developmental arrest during specific life stages, to survive unfavourable conditions. During the diapause preparation phase (DPP), diapause-destined individuals generally store large amounts of fat by regulating nutrition distribution for the energy requirement during diapause maintenance and postdiapause development. Although nutritional patterns during the DPP have been investigated at physiological and biochemical levels in many insects, it remains largely unknown how nutritional metabolism is regulated during the DPP at molecular levels...
May 20, 2017: Insect Molecular Biology
https://www.readbyqxmd.com/read/28544232/peripartum-cytokine-flares-in-a-multiethnic-cohort-of-chronic-hepatitis-b-carriers-does-not-correlate-with-hepatitis-b-virus-suppression-or-increased-risk-of-liver-disease
#18
Shivali S Joshi, Daniel Wong, Eliana Castillo, Mark G Swain, Carla S Coffin
PROBLEM: In chronic hepatitis B (CHB) carriers, alanine transaminase (ALT) flares are common in the peripartum period. There are limited data on immunological changes of pregnancy in CHB. We hypothesize that in pregnant CHB carriers, the Th1/Th2 cytokine ratio is altered resulting in changes in biochemical/virological and liver fibrosis markers. STUDY METHODS: Serum from 38 pregnant/post-partum CHB carriers (median age 32 years, 53% Asian, 8 HBeAg(+) ) was tested for HBV DNA, quantitative HBV surface antigen, ALT and liver fibrosis by transient elastography (TE)...
May 19, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28544064/obesity-is-inversely-related-to-the-risks-of-dental-caries-in-korean-adults
#19
In-Seok Song, Kyungdo Han, Jae-Jun Ryu, Jun-Beom Park
OBJECTIVE: This study investigated whether obesity is linked with dental caries. The present study hypothesized that obesity may influence the number or prevalence of dental caries in Korean adults. SUBJECTS AND METHODS: Data was derived from Korea National Health and Nutrition Examination Survey performed at 2008-2010. Lifestyle, sociodemographic, and biochemical variables were analyzed. Indices related with obesity, sarcopenia, and metabolic syndrome were investigated...
May 20, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28543991/sensitivity-and-specificity-of-plasma-alt-alp-and-bile-acids-for-hepatitis-in-labrador-retrievers
#20
K Dirksen, I A Burgener, J Rothuizen, T S G A M van den Ingh, L C Penning, B Spee, H Fieten
BACKGROUND: Biochemical indicators for diagnosing liver disease are plasma alanine aminotransferase activity (ALT), alkaline phosphatase activity (ALP), and bile acid concentration (BA). OBJECTIVES: To determine the sensitivity and specificity of ALT, ALP, and BA for detecting primary hepatitis (PH) in clinically healthy Labrador retrievers and investigate whether ALT and ALP can discriminate between dogs with PH and nonspecific reactive hepatitis (RH). ANIMALS: 191 clinically healthy and 51 clinically ill Labrador retrievers with hepatic histopathology...
May 23, 2017: Journal of Veterinary Internal Medicine
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