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https://www.readbyqxmd.com/read/27914554/comparative-performance-of-ampflstr%C3%A2-identifiler%C3%A2-plus-pcr-amplification-kit-and-qiagen%C3%A2-investigator%C3%A2-idplex-plus-kit
#1
Dalad Mattayat, Thitika Kitpipit, Sukanya Phetpeng, Watee Asawutmangkul, Phuvadol Thanakiatkrai
Many forensic STR kits are currently available in the market. The AmpFLSTR® Identifiler® Plus kit, which targets 15 STRs, is commonly used worldwide. The Thai forensic DNA community is built around it in terms of instrument, databases, and interpretation. QIAGEN's IDplex Plus kit targets the same loci, but the PCR cycling time is shorter by about 90min. A direct comparison that assesses forensic parameters and applicability to casework between the two kits has never been carried out. In this study, we performed a direct comparison between the two kits using serial dilutions of two control DNA samples and 60 randomly selected casework samples, including samples taken from improvised explosive devices and terrorist raids...
December 2016: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/27911362/automated-acoustic-dispensing-for-the-serial-dilution-of-peptide-agonists-in-potency-determination-assays
#2
Jacqueline Naylor, Alessandra Rossi, Christopher Brankin, David C Hornigold
As with small molecule drug discovery, screening for peptide agonists requires the serial dilution of peptides to produce concentration-response curves. Screening peptides affords an additional layer of complexity as conventional tip-based sample handling methods expose peptides to a large surface area of plasticware, providing an increased opportunity for peptide loss via adsorption. Preventing excessive exposure to plasticware reduces peptide loss via adherence to plastics and thus minimizes inaccuracies in potency prediction, and we have previously described the benefits of non-contact acoustic dispensing for in vitro high-throughput screening of peptide agonists(1)...
November 10, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27898720/normalization-with-corresponding-na%C3%A3-ve-tissue-minimizes-bias-caused-by-commercial-reverse-transcription-kits-on-quantitative-real-time-pcr-results
#3
Andreas Garcia-Bardon, Serge C Thal
Real-time reverse transcription polymerase chain reaction (PCR) is the gold standard for expression analysis. Designed to improve reproducibility and sensitivity, commercial kits are commonly used for the critical step of cDNA synthesis. The present study was designed to determine the impact of these kits. mRNA from mouse brains were pooled to create serial dilutions ranging from 0.0625 μg to 2 μg, which were transcribed into cDNA using four different commercial reverse-transcription kits. Next, we transcribed mRNA from brain tissue after acute brain injury and naïve mice into cDNA for qPCR...
2016: PloS One
https://www.readbyqxmd.com/read/27896496/dalbavancin-reduces-biofilms-of-methicillin-resistant-staphylococcus-aureus-mrsa-and-methicillin-resistant-staphylococcus-epidermidis-mrse
#4
D Knafl, S Tobudic, S C Cheng, D R Bellamy, F Thalhammer
Activity of dalbavancin against methicillin-resistant Staphylococcus aureus (MRSA) and methicillin-resistant Staphylococcus epidermidis (MRSE) in biofilm was investigated and the microbicidal biofilm concentrations (MBC) were determined. Biofilms obtained from ten MRSA and ten MRSE bloodstream isolates, collected from patients in the General Hospital of Vienna between 2012 and 2015, were incubated with dalbavancin in trypticase soy broth (TSB) in serial dilution from 0.0625 mg/l to 256 mg/l using a microtiter plate biofilm model...
November 28, 2016: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/27896363/oxygen-ultra-fine-bubbles-water-administration-prevents-bone-loss-of-glucocorticoid-induced-osteoporosis-in-mice-by-suppressing-osteoclast-differentiation
#5
T Noguchi, K Ebina, M Hirao, T Morimoto, K Koizumi, K Kitaguchi, H Matsuoka, T Iwahashi, H Yoshikawa
: Oxygen ultra-fine bubbles (OUB) saline injection prevents bone loss of glucocorti\coid-induced osteoporosis in mice, and OUB inhibit osteoclastogenesis via RANK-TRAF6-c-Fos-NFATc1 signaling and RANK-p38 MAPK signaling in vitro. INTRODUCTION: Ultra-fine bubbles (<200 nm in diameter) have several unique properties, and they are tested in various medical fields. The purpose of this study was to investigate the effects of oxygen ultra-fine bubbles (OUB) on glucocorticoid-induced osteoporosis (GIO) model mice...
November 28, 2016: Osteoporosis International
https://www.readbyqxmd.com/read/27889565/a-terminal-antibody-method-based-on-multiple-factors-that-influence-elisa-results-for-measurement-of-antibody-affinity-in-clinical-specimens
#6
Congcong Shang, Zhen Wang, Hui Liu
OBJECTIVE: To establish a new method for the measurement of antibody affinity in clinical samples. METHODS: Serial dilutions of antiserum samples were prepared to find the threshold concentration of antibody separating detectable from negative ELISA results. This threshold concentration was defined as the terminal antibody (TA) concentration, and a new method for measuring antibody affinity based on the effect of multiple factors that influence ELISA results at TA concentration was established, which we called the TA method...
November 23, 2016: Journal of Virological Methods
https://www.readbyqxmd.com/read/27889156/survival-of-hepatitis-a-virus-and-aichi-virus-in-cranberry-based-juices-at-refrigeration-4%C3%A2-%C3%A2-c
#7
Snigdha Sewlikar, Doris H D'Souza
Viral foodborne illness continues to be a health-concern globally, with numerous fruit and juice outbreaks of Hepatitis A virus (HAV) reported worldwide. Aichi virus (AiV) is an emerging pathogen with limited epidemiological data. Both, HAV and AiV are resistant to low pH and can survive under adverse environmental conditions leading to transmission ease. The objective of this study was to evaluate the survival of HAV and AiV in commercially-available cranberry-based juices (Cranberry juice cocktail, CJ and a 100% juice with cranberry, MJ) over 21 days at refrigeration (4 °C)...
April 2017: Food Microbiology
https://www.readbyqxmd.com/read/27889139/development-and-application-of-a-quantitative-real-time-pcr-assay-for-rapid-detection-of-the-multifaceted-yeast-kazachstania-servazzii-in-food
#8
Martin Spanoghe, Mario Godoy Jara, John Rivière, Deborah Lanterbecq, Martine Gadenne, Thierry Marique
The beneficial contributions of Kazachstania servazzii are well-established in various food processes. This yeast also contributes in the spoilage of finished packaged food due to abundant gas production. In particular, an occurrence of K. servazzii was recently positively correlated with the formation of severe package swelling of some prepared fresh pizzas. To circumscribe this concern, a quantitative SYBR green real-time PCR assay based on a newly designed specific primer pair targeting the ribosomal ITS1-5...
April 2017: Food Microbiology
https://www.readbyqxmd.com/read/27885593/campylobacter-jejuni-isolation-enumeration-from-environmental-samples
#9
Kelli L Hiett
Currently, there is no universally accepted standard media or method for the recovery of Campylobacter species. This is likely due to the ubiquity of the organism in nature, the complex sample matrices from which the organism is often recovered, as well as the fragile/viable-but nonculturable state the organism assumes in response to stress. The use of a sterile filter placed upon a nonselective Brucella Agar Blood Plate (BAB), followed by incubation at 37 °C in a hydrogen-containing atmosphere (Campycheck), is one method to recover stressed and emerging Campylobacter spp...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27845294/-antibiotic-sensitivity-resistance-of-microbial-strains-isolated-in-traumatological-department
#10
N Avazashvili, P Imnadze, I Mchedlishvili, Kh Gachechiladze
In this article, there are given data of study for antibiotic sensitivity/resistance of gram-positive and gram-negative representatives of different microbial species, isolated from patients after primary hip replacement and osteosynthesis of long bones, which had post operative infectious complications, and also isolated from samples of traumatology department environment. Identification of sensitivity/resistance to antibiotics was performed with use of two methods - disc diffusion and serial dilution on solid nutrient media...
October 2016: Georgian Medical News
https://www.readbyqxmd.com/read/27833893/thermoreversible-gel-for-intrapocket-delivery-of-green-tea-catechin-as-a-local-drug-delivery-system-an-original-research
#11
M Yuvaraja, N Raghavendra Reddy, P Mohan Kumar, K S Ravi, Nabeeh Alqahtani
The periodontal therapies along with systemic antibiotic therapy aim at eliminating the subgingival microbiota to arrest the progression of periodontal diseases. The complete elimination is often difficult, and thus the probability of repopulation after periodontal therapy is also high. The objectives of the study are to develop in situ thermoreversible gelling system of green tea catechins suitable for periodontal pocket administration, which would act as an adjunct to mechanical periodontal therapy. Gel is prepared on a weight basis using a cold process...
October 2016: Journal of Advanced Pharmaceutical Technology & Research
https://www.readbyqxmd.com/read/27825733/a-comparison-of-dna-extraction-protocols-from-blood-spotted-on-fta-cards-for-the-detection-of-tick-borne-pathogens-by-reverse-line-blot-hybridization
#12
Zerihun Hailemariam, Jabbar Sabir Ahmed, Peter-Henning Clausen, Ard Menzo Nijhof
An essential step in the molecular detection of tick-borne pathogens (TBPs) in blood is the extraction of DNA. When cooled storage of blood under field conditions prior to DNA extraction in a dedicated laboratory is not possible, the storage of blood on filter paper forms a promising alternative. We evaluated six DNA extraction methods from blood spotted on FTA Classic(®) cards (FTA cards), to determine the optimal protocol for the subsequent molecular detection of TBPs by PCR and the Reverse Line Blot hybridization assay (RLB)...
January 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27822944/swallowing-function-defined-by-videofluoroscopic-swallowing-studies-after-anterior-cervical-discectomy-and-fusion-a-prospective-study
#13
Si Hyun Kang, Don Kyu Kim, Kyung Mook Seo, Sang Yoon Lee, Seung Won Park, Yong Baeg Kim
This study evaluated factors related to swallowing dysfunction after anterior cervical discectomy and fusion (ACDF) using videofluoroscopic swallowing studies (VFSS). Preoperative and postoperative VFSSs were done with 5 mL diluted barium. Oral transit time, pharyngeal delay time, pharyngeal response time (PRT), and pharyngeal transit time were measured. Hyoid bone movement and upper esophageal sphincter (UES) diameter were measured serially. Thickness of prevertebral soft tissue was measured from digitized VFSS images...
December 2016: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/27822251/immunostimulatory-effect-of-the-aqueous-leaf-extract-of-phyllanthus-niruri-on-the-specific-and-nonspecific-immune-responses-of-oreochromis-mossambicus-peters
#14
M Muthulakshmi, P A Subramani, R D Michael
Plant derived immunostimulants are a promising alternative to chemotherapeutics and also perhaps vaccines. In the present study, we examined the immunostimulating properties of aqueous leaf extract of Phyllanthus niruri, an Indian traditional medicinal herb, on neutrophil activation and antibody response of Oreochromis mossambicus (Peters). Serial ten-fold diluted doses of P. niruri ranging from 0.002 mg to 20 mg were administered to two groups of O. mossambicus (n=8). One group of fishes was administered with sheep red blood cells and the primary and secondary antibody responses were estimated using direct haemagglutination assay...
2016: Iranian journal of veterinary research
https://www.readbyqxmd.com/read/27817831/laboratory-controlled-challenges-of-nile-tilapia-oreochromis-niloticus-with-streptococcus-agalactiae-comparisons-between-immersion-oral-intracoelomic-and-intramuscular-routes-of-infection
#15
E Soto, M Zayas, J Tobar, O Illanes, S Yount, S Francis, M M Dennis
Streptococcus agalactiae, the aetiological agent of streptococcosis in fish, is an important pathogen of cultured and wild fish worldwide. To gain a better understanding of the pathogenesis of streptococcosis in Nile tilapia (Oreochromis niloticus), and to identify the experimental route of infection that most closely mimics natural disease, fingerlings were challenged with S. agalactiae utilizing different delivery methods. Fingerlings were challenged via intracoelomic injection (ICinj), intramuscular injection (IMinj), orally or by immersion with serial dilutions of S...
November 2016: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/27816021/analytical-and-clinical-evaluation-of-the-abbott-realtime-hepatitis-b-sequencing-assay
#16
Hee Jae Huh, Ji-Youn Kim, Myoung-Keun Lee, Nam Yong Lee, Jong-Won Kim, Chang-Seok Ki
BACKGROUND: Long-term nucleoside analogue (NA) treatment leads to selection for drug-resistant mutations in patients undergoing hepatitis B virus (HBV) therapy. The Abbott RealTime HBV Sequencing assay (Abbott assay; Abbott Molecular Inc., Des Plaines, IL, USA) targets the reverse transcriptase region of the polymerase gene and as such has the ability to detect NA resistance-associated mutations in HBV. OBJECTIVES: We evaluated the analytical performance of the Abbott assay and compared its diagnostic performance to that of a laboratory-developed nested-PCR and sequencing method...
October 29, 2016: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/27812884/alofanib-an-allosteric-fgfr2-inhibitor-has-potent-effects-on-ovarian-cancer-growth-in-preclinical-studies
#17
Alexandra Tyulyandina, Daniel Harrison, Wei Yin, Evgenia Stepanova, Dmitry Kochenkov, Eliso Solomko, Nina Peretolchina, Frits Daeyaert, Jean-Baptiste Joos, Koen Van Aken, Mikhail Byakhov, Evgenia Gavrilova, Sergei Tjulandin, Ilya Tsimafeyeu
Purpose Early data suggest that combining FGFR2 inhibitors with platinum-containing cytotoxic agents for the treatment of epithelial ovarian cancer may yield increased antitumor activity. We investigated antitumor activity of alofanib (RPT835), a novel allosteric FGFR2 inhibitor, in ovarian cancer in vitro and in vivo. Methods Equal amounts of ovarian cancer cell (SKOV3) lysates were analyzed for FGFR1-3 protein expression using Wes. To assess the efficacy of alofanib on FGF-mediated cell proliferation, SKOV3 cells were incubated and were treated with serially diluted alofanib...
November 3, 2016: Investigational New Drugs
https://www.readbyqxmd.com/read/27807840/validation-of-biomarker-proteins-using-reverse-capture-protein-microarrays
#18
Catherine Jozwik, Ofer Eidelman, Joshua Starr, Harvey B Pollard, Meera Srivastava
Genomics has revolutionized large-scale and high-throughput sequencing and has led to the discovery of thousands of new proteins. Protein chip technology is emerging as a miniaturized and highly parallel platform that is suited to rapid, simultaneous screening of large numbers of proteins and the analysis of various protein-binding activities, enzyme substrate relationships, and posttranslational modifications. Specifically, reverse capture protein microarrays provide the most appropriate platform for identifying low-abundance, disease-specific biomarker proteins in a sea of high-abundance proteins from biological fluids such as blood, serum, plasma, saliva, urine, and cerebrospinal fluid as well as tissues and cells obtained by biopsy...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27795723/binding-preference-of-anti-hev-antibodies-in-sera-collected-in-algeria-for-antigens-derived-from-hev-genotype-1%C3%A2
#19
Nouredine Behloul, Min Zhang, Jihong Meng
BACKGROUND: Two hepatitis E virus (HEV) outbreaks occurred in Algeria (1979 - 1980 and 1987 - 1988). However, to date, no study on the prevalence of anti-HEV antibodies has been conducted in Algeria, and the genotype of the circulating strains remains unclear. OBJECTIVES: This study was conducted to investigate the presence of anti- HEV antibodies among outpatients and blood donors in three different hospitals in Northern Algeria and to determine the genotype of the circulating strains through the characterization of the immunoreactivity of anti-HEV antibodies...
August 2016: Hepatitis Monthly
https://www.readbyqxmd.com/read/27790262/antibacterial-efficacy-of-different-concentrations-of-sodium-hypochlorite-gel-and-solution-on-enterococcus-faecalis-biofilm
#20
Vahid Zand, Mehrdad Lotfi, Mohammad Hosein Soroush, Amir Ardalan Abdollahi, Mehdi Sadeghi, Ali Mojadadi
INTRODUCTION: This in vitro study compared the antibacterial efficacy of 2.5% sodium hypochlorite gel and 2.5% and 5.25% sodium hypochlorite solutions on Enterococcus faecalis (E. faecalis) biofilm. METHODS AND MATERIALS: The root canals of 60 extracted human single-rooted teeth were contaminated with E. faecalis and incubated for 6 weeks. The samples were randomly assigned to three experimental groups and one control group (n=15). The study protocol in the experimental groups consisted of injection of 5 mL of each irrigant into the root canals...
2016: Iranian Endodontic Journal
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