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https://www.readbyqxmd.com/read/28551622/protein-complex-of-fibrinogen-gamma-chain-and-complement-factor-h-in-ovarian-cancer-patient-plasma
#1
Ken-Ichi Honda, Ryoko Asada, Katsuhiro Kageyama, Takeshi Fukuda, Hiroyuki Terada, Tomoyo Yasui, Toshiyuki Sumi, Masayasu Koyama, Osamu Ishiko, Tadashi Sugawa
BACKGROUND: In the plasma of an advanced cancer patient, fibrinogen is sometimes increased with possible effects on red blood cells (RBCs). MATERIALS AND METHODS: The plasma fraction deteriorating osmotic resistance of RBCs was separated from a patient's plasma with advanced ovarian cancer by phenyl-sepharose column chromatography and analyzed with gel filtration chromatography. RESULTS: In the plasma fraction, we found a protein reactive against whole fibrinogen with a molecular weight higher than that of intact fibrinogen from a healthy volunteer...
June 2017: Anticancer Research
https://www.readbyqxmd.com/read/28551439/cloning-and-characterization-of-thermo-alkalistable-and-surfactant-stable-endoglucanase-from-puga-hot-spring-metagenome-of-ladakh-j-k
#2
Puneet Gupta, Arjun K Mishra, Jyoti Vakhlu
A thermo-alkalistable and surfactant stable endoglucanase (PHS) gene consisting of 554 amino acids was identified from metagenomic library of Puga hot spring using functional screening. PHS gene was overexpressed and purified to homogeneity using affinity chromatography The purified PHS protein presented a single band of 60kDa on the SDS-PAGE gel and zymogram. The recombinant PHS exhibited activity over a broad range of pH and temperature with optima at pH 8.0 and 65°C, respectively and having optimum stability at 60°C and pH 8...
May 24, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28551436/effect-of-stiffness-of-chitosan-hyaluronic-acid-dialdehyde-hydrogels-on-the-viability-and-growth-of-encapsulated-chondrocytes
#3
Lynda V Thomas, Rahul Vg, Prabha D Nair
Substrate elasticity or stiffness can influence the phenotypic and functional characteristics of chondrocytes. This work aimed to study the effect of varying stiffness compositions of a two-component injectable hydrogel based on chitosan (CH) and oxidized hyaluronic acid (HDA) on the growth and functionality of encapsulated chondrocytes. Three different ratios of the gel were prepared (10:1,10:3 and 10:5 CH-HDA) and characterized. The stiffness of the gels was evaluated from the force displacement curves using force spectroscopy AFM analysis...
May 24, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28551241/structure-characterization-and-antioxidant-activity-of-polysaccharides-from-chinese-quince-seed-meal
#4
Li Wang, Hua-Min Liu, Guang-Yong Qin
In the present study, three polysaccharide fractions, QSMP-1, QSMP-2, and QSMP-3, were isolated and purified from the seed meal of Chinese quince. These fractions' structures were investigated by high performance anion exchange chromatography (HPAEC), gel permeation chromatography (GPC), Fourier transform infrared (FT-IR), and nuclear magnetic resonance (NMR), and their antioxidant activities were assessed. The results showed that QSMP-1 is a novel polysaccharide with a backbone mainly composed of →4)-Glcp-(1→, →6)-Glcp-(1→, →6)-Galp-(1→, →2, 3, 4)-Xylp-(1→...
November 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28551237/impact-of-%C3%AE-irradiation-on-physicochemical-properties-of-freeze-dried-amorphophallus-paeoniifolius-flour
#5
M Suriya, C Rethina, Mudasir Bashir, Chagam Koteswara Reddy, N Harsha, Sundaramoorthy Haripriya
Freeze dried raw (FDR) and freeze dried blanched (FDB) Amorphophallus paeoniifolius flours were irradiated at doses of 3, 6 and 12kGy. The irradiated flours were investigated for physicochemical, pasting, textural, thermal and morphological properties. Reduction in amylose content was observed with increasing irradiation dose. Carboxyl content of the flours increased significantly at higher doses. Decline in lightness (L(∗)) and increase in redness (a(∗)) were found to increase with the elevation of dosage...
November 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28550899/combined-effect-of-substance-p-and-curcumin-on-cutaneous-wound-healing-in-diabetic-rats
#6
Vinay Kant, Dinesh Kumar, Raju Prasad, Anu Gopal, Nitya N Pathak, Pawan Kumar, Surender K Tandan
BACKGROUND: Our earlier studies demonstrated that topically applied substance P (SP) or curcumin on excision skin wound accelerated the wound healing in streptozotocin-induced diabetic rats. In the present study, we aimed to evaluate the wound healing potential of combination of SP and curcumin in diabetic rats. MATERIALS AND METHODS: Open cutaneous excision wound was created on the back of each of the 60 diabetic rats. Wound-inflicted rats were equally divided into three groups namely, control, gel treated, and SP + curcumin treated...
May 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28550862/neutral-bleaching-gel-results-in-similar-whitening-effect-and-postoperative-tooth-sensitivity-as-acid-bleaching-gel
#7
Romina Brignardello-Petersen
No abstract text is available yet for this article.
June 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/28550448/towards-xeno-free-cultures-of-human-limbal-stem-cells-for-ocular-surface-reconstruction
#8
Zala Lužnik, Claudia Breda, Vanessa Barbaro, Stefano Ferrari, Angelo Migliorati, Enzo Di Iorio, Barbara Ferrari, Carlo Griffoni, Andrea Grassetto, Hossein Mostafa Elbadawy, Marina Bertolin
Isolated limbal epithelial stem cells (LESCs) were cultured with or without a 3T3 murine fibroblast feeder-layer (FL) in 4 different culture media on culture plates or on denuded human amniotic membrane (AM) support and fibrin gel support: (1) control medium supplemented with fetal bovine serum; (2) control medium supplemented with the synthetic serum "XerumFree™ XF205" (XF); (3) CnT-20 medium supplemented with "XerumFree™ XF205" (CnT-XF) and (4) CnT-20 medium supplemented with human AB serum (CnT-AB). The three xenogeneic media were compared to standard condition (control + FL) and parameters assessed included cell morphology, proliferative potential, number of passages, assessment of clonogenic and abortive colonies, life span, ∆Np63α expression and epithelial morphology on AM...
May 26, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28550377/acceptability-of-and-adherence-to-an-antiretroviral-based-vaginal-microbicide-among-pregnant-women-in-the-united-states
#9
Elizabeth T Montgomery, Lisa M Noguchi, James Y Dai, Jason Pan, Joseph Biggio, Craig Hendrix, Karen Isaacs, D Heather Watts, Jill L Schwartz, Jeanna Piper, Richard Beigi
The MTN-008 trial was the first multi-dose study conducted to evaluate the safety of a microbicide gel (2:1 randomized to tenofovir 1% or hydroxycellulose (HEC) placebo gel) during pregnancy. The study aim was to evaluate safety, tolerability and pharmacokinetics of the study products. Procedures included daily gel administration, with Day 0 and Day 6 in clinic, and Days 1-5 at home. Because pregnancy may pose unique challenges to consistent gel use and acceptability, evaluation of adherence and acceptability was a secondary objective of the trial...
May 26, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28550309/the-ppsu-plasmids-for-generating-dna-molecular-weight-markers
#10
Ryan C Henrici, Turner J Pecen, James L Johnston, Song Tan
Visualizing nucleic acids by gel electrophoresis is one of the most common techniques in molecular biology, and reference molecular weight markers or ladders are commonly used for size estimation. We have created the pPSU1 & pPSU2 pair of molecular weight marker plasmids which produce both 100 bp and 1 kb DNA ladders when digested with two common restriction enzymes. The 100 bp ladder fragments have been optimized to migrate appropriately on both agarose and native polyacrylamide, unlike many currently available DNA ladders...
May 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28550292/proteomic-comparisons-of-opaque-and-transparent-variants-of-streptococcus-pneumoniae-by-two-dimensional-differential-gel-electrophoresis
#11
Melissa H Chai, Florian Weiland, Richard M Harvey, Peter Hoffmann, Abiodun D Ogunniyi, James C Paton
Streptococcus pneumoniae (the pneumococcus) is a human pathogen, accounting for massive global morbidity and mortality. Although asymptomatic colonization of the nasopharynx almost invariably precedes disease, the critical determinants enabling pneumococcal progression from this niche to cause invasive disease are poorly understood. One mechanism proposed to be central to this transition involves opacity phase variation, whereby pneumococci harvested from the nasopharynx are typically transparent, while those simultaneously harvested from the blood are opaque...
May 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28550058/whole-genome-and-core-genome-multilocus-sequence-typing-and-single-nucleotide-polymorphism-analyses-of-listeria-monocytogenes-associated-with-an-outbreak-linked-to-cheese-united-states-2013
#12
Yi Chen, Yan Luo, Heather Carleton, Ruth Timme, David Melka, Tim Muruvanda, Charles Wang, George Kastanis, Lee S Katz, Lauren Turner, Angela Fritzinger, Terence Moore, Robert Stones, Joseph Blankenship, Monique Salter, Mickey Parish, Thomas S Hammack, Peter S Evans, Cheryl L Tarr, Marc W Allard, Errol A Strain, Eric W Brown
Epidemiological findings of a listeriosis outbreak in 2013 implicated Hispanic-style cheese produced by Company A, and pulsed-field gel electrophoresis (PFGE) and whole genome sequencing (WGS) were performed on clinical isolates and representative isolates collected from Company A cheese and environmental samples during the investigation. The results strengthened the evidence for cheese as the vehicle. Surveillance sampling and WGS three months later revealed that the equipment purchased by Company B from Company A yielded an environmental isolate highly similar to all outbreak isolates...
May 26, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28549971/tpp-dendrimer-nanocarriers-for-sirna-delivery-to-the-pulmonary-epithelium-and-their-dry-powder-and-metered-dose-inhaler-formulations
#13
Elizabeth Bielski, Qian Zhong, Hamad Mirza, Matthew Brown, Ashura Molla, Teresa Carvajal, Sandro R P da Rocha
The regulation of genes utilizing the RNA interference (RNAi) mechanism via the delivery of synthetic siRNA has great potential in the treatment of a variety of lung diseases. However, the delivery of siRNA to the lungs is challenging due to the poor bioavailability siRNA when delivered intraveneously, and difficulty in formulating and maintaining the activity of free siRNA when delivered directly to the lungs using inhalation devices. The use of non-viral vectors such as cationic dendrimers can help enhance the stability of siRNA and its delivery to the cell cytosol...
May 23, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28549878/outbreak-of-imipenem-resistant-acinetobacter-baumannii-in-different-wards-at-a-regional-hospital-related-to-untrained-bedside-caregivers
#14
Ching-Hsun Wang, Jin-Feng Li, Li-Yueh Huang, Fu-Mei Lin, Ya-Sung Yang, L Kristopher Siu, Feng-Yee Chang, Jung-Chung Lin
BACKGROUND: This study describes an outbreak caused by imipenem-resistant Acinetobacter baumannii (IRAB) involving 2 general wards at the Penghu branch of Tri-Service General Hospital. METHODS: Clinical data obtained from the patients with IRAB during an outbreak from May 2014-October 2014 were reviewed. Microbiologic sampling from the environment and the hands of health care workers (HCWs) was performed. Clinical isolates from case patients were genotyped using pulsed-field gel electrophoresis (PFGE)...
May 23, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28549866/venom-of-the-peruvian-snake-bothriopsis-oligolepis-detection-of-antibacterial-activity-and-involvement-of-proteolytic-enzymes-and-c-type-lectins-in-growth-inhibition-of-staphylococcus-aureus
#15
M A Sulca, C Remuzgo, J Cárdenas, S Kiyota, E Cheng, M P Bemquerer, M T Machini
There is a rising interest in snake venoms proteins (SVPs) because these macromolecules are related to pharmacological properties that manifest themselves during poisoning and can lead to secondary microbial infections. Interestingly, researchers have somehow neglected the antimicrobial activity of SVPs. The aims of this study were: (i) to verify whether the venom of the Peruvian snake Bothriopsis oligolepis displays such activity; (ii) to isolate and identify some its antimicrobial constituents. Liquid growth inhibition assays revealed that the crude venom inhibited the growth of Gram-positive and Gram-negative bacteria, but not of Candida species...
May 23, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28549769/variations-in-the-cerebrospinal-fluid-proteome-following-traumatic-brain-injury-and-subarachnoid-hemorrhage
#16
David E Connor, Ganta V Chaitanya, Prashant Chittiboina, Paul McCarthy, L Keith Scott, Lisa Schrott, Alireza Minagar, Anil Nanda, J Steven Alexander
BACKGROUND: Proteomic analysis of cerebrospinal fluid (CSF) has shown great promise in identifying potential markers of injury in neurodegenerative diseases [1-13]. Here we compared CSF proteomes in healthy individuals, with patients diagnosed with traumatic brain injury (TBI) and subarachnoid hemorrhage (SAH) in order to characterize molecular biomarkers which might identify these different clinical states and describe different molecular mechanisms active in each disease state. METHODS: Patients presenting to the Neurosurgery service at the Louisiana State University Hospital-Shreveport with an admitting diagnosis of TBI or SAH were prospectively enrolled...
May 13, 2017: Pathophysiology: the Official Journal of the International Society for Pathophysiology
https://www.readbyqxmd.com/read/28549680/thiomers-impact-of-in-situ-cross-linkers-on-mucoadhesive-properties
#17
Hung Thanh Lam, Gintare Leonaviciute, Ožbej Zupančič, Andreas Bernkop-Schnürch
The aim of this study was to evaluate the impact of in situ cross-linkers on the gelling and mucoadhesive properties of thiomers. Polycarbophil-cysteine conjugate (PCP-cys) was synthesized by covalent attachment of l-cysteine to polycarbophil via amide bond formation mediated by 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDAC) and N-hydroxysuccinimide (NHS) whereas in situ cross-linkers (PAA-cys-MNA) were synthesized by the same bond formation between poly(acrylic acid) (PAA) of 2.1-, 6-, and 15kDa and 2-((2-amino-2-carboxyethyl)disulfanyl)nicotinic acid (cys-MNA) used as ligand...
May 23, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28549437/p-p-ddt-induces-testicular-oxidative-stress-induced-apoptosis-in-adult-rats
#18
Neila Marouani, Dorsaf Hallegue, Mohsen Sakly, Moncef Benkhalifa, Khémais Ben Rhouma, Olfa Tebourbi
BACKGROUND: The 1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane (p,p'-DDT) is a known persistent organic pollutant and male reproductive toxicant. The present study is designed to test the hypothesis that oxidative stress mediates p,p'-DDT-induced apoptosis in testis. METHODS: Male Wistar rats received an intraperitoneal (ip) injection of the pesticide at doses of 50 and 100mg/kg for 10 consecutive days. The oxidative stress was evaluated by biomarkers such lipid peroxidation (LPO) and metallothioneins (MTs) levels...
May 26, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28549408/pasting-rheological-and-retrogradation-properties-of-low-amylose-rice-starch-with-date-syrup
#19
Ibrahim O Mohamed, Jobe Babucurr
Effects of date syrup on pasting, rheological, and retrogradation properties of low-amylose rice starch were investigated using three levels of date syrup (starch:syrup 1:1, 1:2, or 1:3). Measurements were carried out using HR-2 Discovery Rheometer equipped with a pasting cell and parallel plate geometry. The pasting measurements showed that the peak viscosity of the control is significantly higher than the samples with date syrup (p < 0.05), while the final viscosity increases with increased date syrup levels...
January 1, 2017: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
https://www.readbyqxmd.com/read/28549385/identification-and-imaging-of-leukemia-cells-using-dual-aptamer-functionalized-graphene-oxide-complex
#20
Amirhossein Bahreyni, Rezvan Yazdian-Robati, Mohammad Ramezani, Mehdi Rasouli, Morteza Alinezhad Nameghi, Mona Alibolandi, Khalil Abnous, Seyed Mohammad Taghdisi
Acute lymphoblastic leukemia is the most common malignancy in children. Patient improvement completely depends on the diagnosis of acute lymphoblastic leukemia. So there is a great demand for diagnosis of acute lymphoblastic leukemia. In this study, a novel assay based on dual-aptamer (Sgc8c and ATP aptamers)-functionalized graphene oxide (DAFGO) complex was designed for the identification of Molt-4 cells (human acute lymphoblastic leukemia T-cell). This assay relies on the internalization of DAFGO complex into Molt-4 cells, but not into U266 cells, using Sgc8c aptamer as molecular recognition probe, and release of FAM-labeled ATP aptamer from the complex in the presence of high amounts of ATP in lysosome, leading to a strong fluorescence emission...
January 1, 2017: Journal of Biomaterials Applications
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