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Damiano Rizzoni
OBJECTIVE: The dose-effect relationship of fixed-dose combinations of anti-hypertensive drugs has been only poorly explored. This pooled analysis investigates the dose-response relationship of fixed-dose lercanidipine + enalapril in patients with mild-to-moderate hypertension. RESEARCH DESIGN AND METHODS: This was an individual patient data analysis of four randomized studies (n = 2340). MAIN OUTCOME MEASURES: The primary efficacy variable was the change from baseline in sitting diastolic blood pressure (SDBP)...
October 2016: Current Medical Research and Opinion
Zheng Shi, Rong Sun, Tian Yu, Rong Liu, Li-Jia Cheng, Jin-Ku Bao, Liang Zou, Yong Tang
Plant lectins have been investigated to elucidate their complicated mechanisms due to their remarkable anticancer activities. Although plant lectins seems promising as a potential anticancer agent for further preclinical and clinical uses, further research is still urgently needed and should include more focus on molecular mechanisms. Herein, a Naïve Bayesian model was developed to predict the protein-protein interaction (PPI), and thus construct the global human PPI network. Moreover, multiple sources of biological data, such as smallest shared biological process (SSBP), domain-domain interaction (DDI), gene co-expression profiles and cross-species interolog mapping were integrated to build the core apoptotic PPI network...
2016: International Journal of Molecular Sciences
Vivek Kumar Prasad, Clemens Drenowatz, Gregory A Hand, Carl J Lavie, Xuemei Sui, Madison Demello, Steven N Blair
OBJECTIVES: We examined the independent and combined associations of cardiorespiratory fitness (CRF), body fat (BF) percentage (BF%), and body mass index (BMI) with submaximal systolic blood pressure (SSBP) among young adult women. MATERIALS AND METHODS: Analyses included a sample of 211 normotensive women with a BMI between 20 and 35 kg/m(2); BF% was calculated using total BF measured from dual X-ray absorptiometry, CRF was assessed using a graded exercise test, and SSBP was measured at each stage...
September 2016: Journal of Women's Health
Fiona Houston, Wilfred Goldmann, James Foster, Lorenzo González, Martin Jeffrey, Nora Hunter
Sheep are natural hosts of the prion disease, scrapie. They are also susceptible to experimental challenge with various scrapie strains and with bovine spongiform encephalopathy (BSE), which affects cattle and has been accidentally transmitted to a range of other species, including man. Incidence and incubation period of clinical disease in sheep following inoculation is controlled by the PRNP gene, which has different alleles defined on the basis of polymorphisms, particularly at codons 136, 154 and 171, although other codons are associated with survival time, and the exact responses of the sheep may be influenced by other breed-related differences...
2015: PloS One
Anton G Gossner, John Hopkins
Accumulation of the misfolded prion protein, PrP(Sc) in the central nervous system (CNS) is strongly linked to progressive neurodegenerative disease. For many transmissible spongiform encephalopathies (TSEs), peripheral lymphoid tissue is an important site of PrP(Sc) amplification but without gross immunological consequence. Susceptible VRQ homozygous New Zealand Cheviot sheep were infected with SSBP/1 scrapie by inoculation in the drainage area of the prescapular lymph nodes. The earliest time that PrP(Sc) was consistently detected by immunohistology in these nodes was D50 post infection...
December 31, 2015: Veterinary Microbiology
Faez Iqbal Khan, Krishna Bisetty, Suren Singh, Kugen Permaul, Md Imtaiyaz Hassan
Chitinases are ubiquitous class of extracellular enzymes, which have gained attention in the past few years due to their wide biotechnological applications. The effectiveness of conventional insecticides is increasingly compromised by the occurrence of resistance; thus, chitinase offers a potential alternative to the use of chemical fungicides. The thermostable enzymes from thermophilic microorganisms have numerous industrial, medical, environmental and biotechnological applications due to their high stability for temperature and pH...
November 2015: Extremophiles: Life Under Extreme Conditions
Vivek K Prasad, Clemens Drenowatz, Gregory A Hand, Carl J Lavie, Xuemei Sui, Madison Demello, Steven N Blair
OBJECTIVES: Exercise blood pressure is a marker of future cardiovascular morbidity and mortality among individuals with or without high resting BP or any other cardiovascular disease (CVD) signs and symptoms at present. The purpose of this study was to evaluate the association between SBP during submaximal exercise and cardiorespiratory fitness (CRF) among young men. Further, we investigated the trend displayed by submaximal SBP (SSBP) across different levels of CRF. METHODS: Graded exercise test (GXT) using a Modified Bruce protocol was performed on 204 men; SSBP was recorded at each stage of the protocol...
November 2015: Journal of Hypertension
Vashni Gramany, Faez Iqbal Khan, Algasan Govender, Krishna Bisetty, Suren Singh, Kugenthiren Permaul
The aim of this study was to clone, express, and characterize a β-xylosidase (Tlxyn1) from the thermophilic fungus Thermomyces lanuginosus SSBP in Pichia pastoris GS115 as well as analyze optimal activity and stability using computational and experimental methods. The enzyme was constitutively expressed using the GAP promoter and secreted into the medium due to the alpha-mating factor secretion signal present on the expression vector pBGPI. The 1276 bp gene consists of an open reading frame that does not contain introns...
August 2016: Journal of Biomolecular Structure & Dynamics
Enric Vidal, Natalia Fernández-Borges, Belén Pintado, Hasier Eraña, Montserrat Ordóñez, Mercedes Márquez, Francesca Chianini, Dolors Fondevila, Manuel A Sánchez-Martín, Olivier Andreoletti, Mark P Dagleish, Martí Pumarola, Joaquín Castilla
Interspecies transmission of prions is a well-established phenomenon, both experimentally and under field conditions. Upon passage through new hosts, prion strains have proven their capacity to change their properties and this is a source of strain diversity which needs to be considered when assessing the potential risks associated with consumption of prion contaminated protein sources. Rabbits were considered for decades to be a prion resistant species until proven otherwise recently. To determine the extent of rabbit susceptibility to prions and to assess the effects of passage of different prion strains through this species a transgenic mouse model overexpressing rabbit PrPC was developed (TgRab)...
August 2015: PLoS Pathogens
Faez Iqbal Khan, Algasan Govender, Kugen Permaul, Suren Singh, Krishna Bisetty
Thermomyces lanuginosus is a thermophilic fungus that produces large number of industrially-significant enzymes owing to their inherent stability at high temperatures and wide range of pH optima, including thermostable chitinases that have not been fully characterized. Here, we report cloning, characterization and structure prediction of a gene encoding thermostable chitinase II. Sequence analysis revealed that chitinase II gene encodes a 343 amino acid protein of molecular weight 36.65kDa. Our study reports that chitinase II exhibits a well-defined TIM-barrel topology with an eight-stranded α/β domain...
June 7, 2015: Journal of Theoretical Biology
Michael E Thase, Rana Fayyad, Ru-Fong J Cheng, Christine J Guico-Pabia, Jonathan Sporn, Matthieu Boucher, Karen A Tourian
OBJECTIVE: To evaluate the effect of the serotonin-norepinephrine re-uptake inhibitor desvenlafaxine on blood pressure and incidence of new onset hypertension in pooled short-term studies and in two longer-term, randomized withdrawal studies. RESEARCH DESIGN AND METHODS: Data from patients randomly assigned to desvenlafaxine 10 mg to 400 mg/day or placebo in 11 short-term (8-12 weeks), fixed-dose, double-blind, placebo-controlled studies of major depressive disorder (MDD) were pooled for analysis; two desvenlafaxine randomized withdrawal studies (36 and 46 weeks) were analyzed separately...
April 2015: Current Medical Research and Opinion
A M Winger, J L Heazlewood, L J G Chan, C J Petzold, K Permaul, S Singh
Thermomyces lanuginosus is a thermophilic fungus known for its ability to produce industrially important enzymes including large amounts of xylanase, the key enzyme in hemicellulose hydrolysis. The secretome of T. lanuginosus SSBP was profiled by shotgun proteomics to elucidate important enzymes involved in hemicellulose saccharification and to characterise the presence of other industrially interesting enzymes. This study reproducibly identified a total of 74 proteins in the supernatant following growth on corn cobs...
November 2014: Journal of Industrial Microbiology & Biotechnology
Seung Hun Jeong, Hyoung Kyu Kim, In-Sung Song, Su Jin Noh, Jubert Marquez, Kyung Soo Ko, Byoung Doo Rhee, Nari Kim, Natalia P Mishchenko, Sergey A Fedoreyev, Valentin A Stonik, Jin Han
Echinochrome A (Ech A) is a natural pigment from sea urchins that has been reported to have antioxidant properties and a cardio protective effect against ischemia reperfusion injury. In this study, we ascertained whether Ech A enhances the mitochondrial biogenesis and oxidative phosphorylation in rat cardio myoblast H9c2 cells. To study the effects of Ech A on mitochondrial biogenesis, we measured mitochondrial mass, level of oxidative phosphorylation, and mitochondrial biogenesis regulatory gene expression...
August 2014: Marine Drugs
Anton G Gossner, John Hopkins
Sheep scrapie is a transmissible spongiform encephalopathy (TSE), progressive and fatal neurodegenerative diseases of the central nervous system (CNS) linked to the accumulation of misfolded prion protein, PrP(Sc). New Zealand Cheviot sheep, homozygous for the VRQ genotype of the PRNP gene are most susceptible with an incubation period of 193 days with SSBP/1 scrapie. However, the earliest time point that PrP(Sc) can be detected in the CNS is 125 days (D125). The aim of this study was to quantify changes to the transcriptome of the thalamus and obex (medulla) at times immediately before (D75) and after (D125) PrP(Sc) was detected...
October 10, 2014: Veterinary Microbiology
Shunsuke Takahashi, Tomohiro Usui, Shohei Kawasaki, Hidefumi Miyata, Hirofumi Kurita, Shun-ichi Matsuura, Akira Mizuno, Masahiko Oshige, Shinji Katsura
T7 Exonuclease (T7 Exo) DNA digestion reactions were studied using direct single-molecule observations in microflow channels. DNA digestion reactions were directly observed by staining template DNA double-stranded regions with SYTOX Orange and staining single-stranded (digested) regions with a fluorescently labeled ssDNA-recognizing peptide (ssBP-488). Sequentially acquired photographs demonstrated that a double-stranded region monotonously shortened as a single-stranded region monotonously increased from the free end during a DNA digestion reaction...
July 15, 2014: Analytical Biochemistry
James D Foster, Wilfred Goldmann, Nora Hunter
Natural scrapie transmission from infected ewes to their lambs is thought to occur by the oral route around the time of birth. However the hypothesis that scrapie transmission can also occur before birth (in utero) is not currently favoured by most researchers. As scrapie is an opportunistic infection with multiple infection routes likely to be functional in sheep, definitive evidence for or against transmission from ewe to her developing fetus has been difficult to achieve. In addition the very early literature on maternal transmission of scrapie in sheep was compromised by lack of knowledge of the role of the PRNP (prion protein) gene in control of susceptibility to scrapie...
2013: PloS One
Eri Saijo, Hae-Eun Kang, Jifeng Bian, Kristi G Bowling, Shawn Browning, Sehun Kim, Nora Hunter, Glenn C Telling
Although they share certain biological properties with nucleic acid based infectious agents, prions, the causative agents of invariably fatal, transmissible neurodegenerative disorders such as bovine spongiform encephalopathy, sheep scrapie, and human Creutzfeldt Jakob disease, propagate by conformational templating of host encoded proteins. Once thought to be unique to these diseases, this mechanism is now recognized as a ubiquitous means of information transfer in biological systems, including other protein misfolding disorders such as those causing Alzheimer's and Parkinson's diseases...
October 2013: PLoS Pathogens
Emeka A Okoroma, Diane Purchase, Hemda Garelick, Roger Morris, Michael H Neale, Otto Windl, Oduola O Abiola
The prion agent is notoriously resistant to common proteases and conventional sterilisation procedures. The current methods known to destroy prion infectivity such as incineration, alkaline and thermal hydrolysis are harsh, destructive, environmentally polluting and potentially hazardous, thus limit their applications for decontamination of delicate medical and laboratory devices, remediation of prion contaminated environment and for processing animal by-products including specified risk materials and carcases...
2013: PloS One
Nokuthula Peace McHunu, Kugen Permaul, Ahmad Yamin Abdul Rahman, Jennifer A Saito, Suren Singh, Maqsudul Alam
We report here the draft genome sequence of Thermomyces lanuginosus strain SSBP, which was isolated from soil in South Africa. This fungus produces the largest amount of xylanase ever reported in the literature.
2013: Genome Announcements
Hui Hou, Xiaojing Bai, Chunyan Xing, Baoping Lu, Jinhui Hao, Xi Ke, Ningyu Gu, Bailin Zhang, Jilin Tang
We report a simple and sensitive method for label-free detection of single-stranded DNA-binding protein (SSBP) based on an array of microfabricated cantilevers. The single-stranded DNA (ssDNA) was immobilized on the surface of the sensing cantilevers to detect SSBP, while the reference cantilevers were modified with 6-mercapto-1-hexanol to detect any unwanted cantilever deflection. The differential deflection signals that reveal specific SSBP-ssDNA binding have been found to depend on the SSBP concentration...
May 15, 2013: Talanta
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