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https://www.readbyqxmd.com/read/28231527/rapid-discrimination-and-determination-of-antibiotics-drugs-in-plastic-syringes-using-near-infrared-spectroscopy-with-chemometric-analysis-application-to-amoxicillin-and-penicillin
#1
Laetitia Minh Mai Lê, Luc Eveleigh, Ikram Hasnaoui, Patrice Prognon, Arlette Baillet-Guffroy, Eric Caudron
The aim of this study was to investigate near infrared spectroscopy (NIRS) combined to chemometric analysis to discriminate and quantify three antibiotics by direct measurement in plastic syringes.Solutions of benzylpenicillin (PENI), amoxicillin (AMOX) and amoxicillin/clavulanic acid (AMOX/CLAV) were analyzed at therapeutic concentrations in glass vials and plastic syringes with NIR spectrometer by direct measurement. Chemometric analysis using partial least squares regression and discriminative analysis was conducted to develop qualitative and quantitative calibration models...
February 14, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28231510/lipopolyplex-potentiates-anti-tumor-immunity-of-mrna-based-vaccination
#2
Stefano Persano, Maria L Guevara, Zhaoqi Li, Junhua Mai, Mauro Ferrari, Pier Paolo Pompa, Haifa Shen
mRNA-based vaccines have the benefit of triggering robust anti-cancer immunity without the potential danger of genome integration from DNA vaccines or the limitation of antigen selection from peptide vaccines. Yet, a conventional mRNA vaccine comprising of condensed mRNA molecules in a positively charged protein core structure is not effectively internalized by the antigen-presenting cells. It cannot offer sufficient protection for mRNA molecules from degradation by plasma and tissue enzymes either. Here, we have developed a lipopolyplex mRNA vaccine that consists of a poly-(β-amino ester) polymer mRNA core encapsulated into a 1,2-dioleoyl-sn-glycero-3-ethylphosphocholine/1,2-dioleoyl-sn-glycero-3-phosphatidyl-ethanolamine/1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[amino(polyethylene glycol)-2000 (EDOPC/DOPE/DSPE-PEG) lipid shell...
February 20, 2017: Biomaterials
https://www.readbyqxmd.com/read/28231139/evaluation-of-the-bitterness-masking-effect-of-powdered-roasted-soybeans
#3
Yoshimasa Makita, Tomoko Ishida, Noriko Kobayashi, Mai Fujio, Kyoko Fujimoto, Rina Moritomo, Jun-Ichi Fujita, Shin-Ichi Fujiwara
The masking of bitterness is considered important because many pharmaceutical compounds have a bitter taste. The bitterness-masking effect of powdered roasted soybeans (PRS) was investigated using a bitter taste sensor. PRS was revealed to significantly suppress the bitterness of quinine hydrochloride and denatonium benzoate. Furthermore, the bitterness-masking mechanism of PRS extracts was evaluated using dynamic light scattering. These results showed that the extracted suspension consisted of particles that were several hundreds of nanometers in size...
June 18, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28230869/a-combined-high-temperature-experimental-and-theoretical-kinetic-study-of-the-reaction-of-dimethyl-carbonate-with-oh-radicals
#4
Fethi Khaled, Binod Raj Giri, Milán Szőri, Tam V-T Mai, Lam K Huynh, Aamir Farooq
The reaction kinetics of dimethyl carbonate (DMC) and OH radicals were investigated behind reflected shock waves over the temperature range of 872-1295 K and at pressures near 1.5 atm. Reaction progress was monitored by detecting OH radicals at 306.69 nm using a UV laser absorption technique. The rate coefficients for the reaction of DMC with OH radicals were extracted using a detailed kinetic model developed by Glaude et al. (Proc. Combust. Inst. 2005, 30(1), 1111-1118). The experimental rate coefficients can be expressed in Arrhenius form as: kexpt'l = 5...
February 23, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28230571/infection-and-complications-following-low-velocity-intra-articular-gunshot-injuries
#5
Mai P Nguyen, Michael S Reich, Jeffrey A O'Donnell, Jonathan C Savakus, Nicholas F Prayson, Joseph F Golob, Amy A McDonald, John J Como, Heather A Vallier
OBJECTIVES: The purpose of this study is to characterize the demographics, interventions, infection rates, and other complications following intra-articular gunshot wounds. DESIGN: Retrospective review. SETTING: Level I trauma center. PATIENTS/PARTICIPANTS: Fifty-three patients with 55 civilian low-velocity intra-articular gunshot injuries with a minimum of four weeks follow-up were included in the study. Seven patients had associated vascular injuries...
February 20, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28230198/longitudinal-association-of-hypertension-and-diabetes-mellitus-with-cognitive-functioning-in-a-general-70-year-old-population-the-sonic-study
#6
Hirochika Ryuno, Kei Kamide, Yasuyuki Gondo, Mai Kabayama, Ryosuke Oguro, Chikako Nakama, Serina Yokoyama, Motonori Nagasawa, Satomi Maeda-Hirao, Yuki Imaizumi, Miyuki Takeya, Hiroko Yamamoto, Masao Takeda, Yoichi Takami, Norihisa Itoh, Yasushi Takeya, Koichi Yamamoto, Ken Sugimoto, Takeshi Nakagawa, Saori Yasumoto, Kazunori Ikebe, Hiroki Inagaki, Yukie Masui, Michiyo Takayama, Yasumichi Arai, Tatsuro Ishizaki, Ryutaro Takahashi, Hiromi Rakugi
Both hypertension and diabetes in middle-aged individuals have been suggested to be predictive indicators of cognitive decline. However, the association of hypertension, diabetes and their combination with cognitive functioning is still controversial in older people. The purpose of this study was to investigate the association between cognitive decline and hypertension, diabetes, and their combination in 70-year-old people based on a 3-year longitudinal analysis. Four hundred and fifty-four people aged 70 (±1) years who participated in the Japanese longitudinal cohort study of Septuagenarians, Octogenarians and Nonagenarians Investigation with Centenarians (SONIC) were recruited randomly from a general population and were monitored for 3 years...
February 23, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28229392/determination-of-rabeprazole-enantiomers-in-commercial-tablets-using-immobilized-cellulose-based-stationary-phase
#7
Miri Kim, Su Kyung Yu, Quoc-Ky Truong, Xuan-Lan Mai, Hyun Kyu Chung, Jong-Seong Kang, Kyeong Ho Kim
Rabeprazole is one of the latest proton-pump inhibitors used for treatment of several gastrointestinal disorders. For therapeutic applications, rabeprazole has been administered as a mixture of R-(+) and S-(-) enantiomers. Owing to pharmacological and toxicological differences between stereoisomers, chiral recognition has now become an integral part of drug research and development. A simple and rapid liquid chromatographic method for enantioselective separation and determination of R-(+) and S-(-) enantiomers of rabeprazole in bulk drug and pharmaceutical formulations was developed...
February 22, 2017: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/28229330/the-involvement-of-the-myelin-associated-inhibitors-and-their-receptors-in-cns-plasticity-and-injury
#8
REVIEW
Anthony G Boghdadi, Leon Teo, James A Bourne
The limited capacity for the central nervous system (CNS) to repair itself was first described over 100 years ago by Spanish neuroscientist Ramon Y. Cajal. However, the exact mechanisms underlying this failure in neuronal regeneration remain unclear and, as such, no effective therapeutics yet exist. Numerous studies have attempted to elucidate the biochemical and molecular mechanisms that inhibit neuronal repair with increasing evidence suggesting that several inhibitory factors and repulsive guidance cues active during development actually persist into adulthood and may be contributing to the inhibition of repair...
February 22, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28229195/predictors-for-uroseptic-shock-in-patients-who-undergo-minimally-invasive-percutaneous-nephrolithotomy
#9
Junhong Fan, Shawpong Wan, Luhao Liu, Zhijian Zhao, Zanlin Mai, Dong Chen, Wei Zhu, Zhou Yang, Lili Ou, Wenqi Wu
To identify risk factors that can predict which patient is likely to progress from systemic inflammatory response syndrome (SIRS) to uroseptic shock after minimally invasive percutaneous nephrolithotomy (MPCNL) for the upper urinary tract stones. We retrospectively reviewed 156 patients who suffered infectious complications after MPCNL from March 2014 to February 2016. Perioperative risk factors that could potentially contribute to uroseptic shock were compared to those of patients with only SIRS. 135 of the 156 patients developed to SIRS only, the remaining 21 patients progressed to uroseptic shock...
February 22, 2017: Urolithiasis
https://www.readbyqxmd.com/read/28228620/a-case-of-intracranial-arterial-dolichoectasia-with-4-repeated-cerebral-infarctions-in-6-months-and-enlargement-of-basilar-artery
#10
Hideyuki Moriyoshi, Soma Furukawa, Mai Iwata, Junichiro Suzuki, Noriyoshi Nakai, Suguru Nishida, Yasuhiro Ito
A 78-year-old man was admitted to our hospital because of sudden right hemiparesis and dysarthria. His cranial MRI showed an area of hyperintensity in left pons on DWI and MRA revealed dilated, elongated and tortuous intracranial artery. We diagnosed as acute phase ischemic stroke and intracranial arterial dolichoectasia (IADE). Intravenous infusion of rt-PA was performed 157 minutes after the onset of symptoms, and his hemiparesis improved. However, he subsequently suffered from cerebral infarction 4 times in 6 months, and we treated him twice with thrombolytic therapy...
February 22, 2017: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/28228426/probiotics-lactobacillus-gasseri-ks-13-bifidobacterium-bifidum-g9-1-and-bifidobacterium-longum-mm-2-improve-rhinoconjunctivitis-specific-quality-of-life-in-individuals-with-seasonal-allergies-a-double-blind-placebo-controlled-randomized-trial
#11
Jennifer C Dennis-Wall, Tyler Culpepper, Carmelo Nieves, Cassie C Rowe, Alyssa M Burns, Carley T Rusch, Ashton Federico, Maria Ukhanova, Sheldon Waugh, Volker Mai, Mary C Christman, Bobbi Langkamp-Henken
Background: Rhinoconjunctivitis-specific quality of life is often reduced during seasonal allergies. The Mini Rhinoconjunctivitis Quality of Life Questionnaire (MRQLQ) is a validated tool used to measure quality of life in people experiencing allergies (0 = not troubled to 6 = extremely troubled). Probiotics may improve quality of life during allergy season by increasing the percentage of regulatory T cells (Tregs) and inducing tolerance.Objective: The objective of this study was to determine whether consuming Lactobacillus gasseri KS-13, Bifidobacterium bifidum G9-1, and B...
February 22, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28227044/dental-plaque-assessment-lifelogging-system-using-commercial-camera-for-oral-healthcare
#12
Mai Kasai, Yuka Iijima, Hiroshi Takemura, Hiroshi Mizoguchi, Tomoko Ohshima, Naho Satomi, Mai Kasai, Yuka Iijima, Hiroshi Takemura, Hiroshi Mizoguchi, Tomoko Ohshima, Naho Satomi, Tomoko Ohshima, Naho Satomi, Hiroshi Takemura, Mai Kasai, Hiroshi Mizoguchi, Yuka Iijima
We present a system for estimating the dental plaque adhesion area using a commercial camera image for oral healthcare via management of the intraoral environment. In recent years, several studies have reported on the relationship between a general disease and a periodontal disease. Such studies mention that normalization of the intraoral environment by tooth brushing is the most important treatment in preventive dentistry. However, evaluation of individual tooth brushing skill is difficult. Some devices for automatically measuring the quantity of dental plaque have already been proposed for the teaching tool of tooth brushing...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226019/hospitalizations-of-brazilian-children-under-fiver-years-old-a-systematic-review
#13
Dixis Figueroa Pedraza, Erika Morganna Neves de Araujo
Objective: to describe the causes of hospitalization of Brazilian children under five years old. Methods: this is a systematic review of articles published from 2008 to 2015, searched in the databases Medline and LILACS; selected studies were critically analyzed through a validated instrument. Results: eleven articles were included, four of them are ecological and seven are cross-sectional studies; respiratory diseases (n=5), parasitic infections (n=4) and perinatal diseases (n=2) were the main causes for hospitalizations in the reviwed articles; in the studies that analyzed the sensitive conditions, pneumonia (n=6), gastroenteritis (n=5), and asthma (n=5) were the mais causes pointed out...
January 2017: Epidemiologia e Servicos de Saude: Revista do Sistema Unico de Saude do Brasil
https://www.readbyqxmd.com/read/28225910/products-purchased-from-family-farming-for-school-meals-in-the-cities-of-rio-grande-do-sul
#14
Daniele Ferigollo, Vanessa Ramos Kirsten, Dienifer Heckler, Oscar Agustín Torres Figueredo, Julian Perez-Cassarino, Rozane Márcia Triches
OBJECTIVE: This study aims to verify the adequacy profile of the cities of the State of Rio Grande do Sul, Brazil, in relation to the purchase of products of family farming by the Programa Nacional de Alimentação Escolar (PNAE - National Program of School Meals). METHODS: This is a quantitative descriptive study, with secondary data analysis (public calls-to-bid). The sample consisted of approximately 10% (n = 52) of the cities in the State, establishing a representation by mesoregion and size of the population...
February 16, 2017: Revista de Saúde Pública
https://www.readbyqxmd.com/read/28225908/intimate-partner-violence-reported-by-female-and-male-users-of-healthcare-units
#15
Claudia Renata Dos Santos Barros, Lilia Blima Schraiber
OBJECTIVE: To analyze nonfatal violence suffered and committed by adult men and women, in an intimate relationship. METHODS: The participants in the research were women aged between 15 and 49 years and men between 18 and 60 years, interviewed by face-to-face questionnaire application. The sample selection was of consecutive type, according to the order of arrival of the users. We conducted temporarily independent investigations and covered different health services to avoid couples and relationships in which the retaliation could be overvalued...
February 16, 2017: Revista de Saúde Pública
https://www.readbyqxmd.com/read/28225179/frozen-chirality-of-tertiary-aromatic-amides-access-to-enantioenriched-tertiary-%C3%AE-amino-acid-or-amino-alcohol-without-any-chiral-reagent
#16
Thi Thoa Mai, Baby Viswambharan, Didier Gori, Régis Guillot, Jean-Valère Naubron, Cyrille Kouklovsky, Valérie Alezra
One of the fundamental and intriguing aspects of life is the homochirality of the essential molecules. In this field, the absolute asymmetric synthesis of α-amino acids is a major challenge. Herein we report access, by chemical means, to tertiary α-amino acids derivatives in up to 96% ee without using any chiral reagent. In our strategy, the dynamic axial chirality of tertiary aromatic amides is frozen in a crystal and is responsible for the stereoselectivity of the subsequent steps. Furthermore, we are able to control the configuration of the final product by carefully sorting out the initial crystals...
February 22, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28223800/comparison-of-the-cellular-transport-mechanism-of-cationic-star-shaped-polymers-and-liposomes-in-hacat-cells
#17
Heng-Cong Luo, Na Li, Li Yan, Kai-Jin Mai, Kan Sun, Wei Wang, Guo-Juan Lao, Chuan Yang, Li-Ming Zhang, Meng Ren
Several biological barriers must be overcome to achieve efficient nonviral gene delivery. These barriers include target cell uptake, lysosomal degradation, and dissociation from the carrier. In this study, we compared the differences in the uptake mechanism of cationic, star-shaped polymer/MMP-9siRNA complexes (β-CD-(D3)7/MMP-9siRNA complexes: polyplexes) and commercial liposome/MMP-9siRNA complexes (Lipofectamine(®) 2000/MMP-9siRNA complexes: liposomes). The uptake pathway and transfection efficiency of the polyplexes and liposomes were determined by fluorescence microscopy, flow cytometry, and reverse transcriptase-polymerase chain reaction...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28222401/combination-of-sitagliptin-and-silymarin-ameliorates-liver-fibrosis-induced-by-carbon-tetrachloride-in-rats
#18
Samia Salem Sokar, Magda El-Sayed El-Sayad, Mai El-Sayed Ghoneim, Abdelhadi Mohamed Shebl
Liver fibrosis is a common pathological condition that occurs in most conditions associated with chronic liver injury. Silymarin is a herbal product widely used for its hepatoprotective effect. Sitagliptin, a dipeptidyl peptidase-4 inhibitor (DPP4-I), is clinically used as an oral antidiabetic agent. This study was designed to investigate the effects of Sitagliptin, Silymarin, and their combination on established liver fibrosis in carbon tetrachloride (CCl4) rat model. Male albino rats received intraperitoneal injections of CCl4 three times a week for 7 weeks, as well as daily oral treatments of Sitagliptin (100mg/kg) or Silymarin (100mg/kg) or their combination during the 7 weeks of intoxication...
February 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28221105/zoonotic-transmission-of-mcr-1-colistin-resistance-gene-from-small-scale-poultry-farms-vietnam
#19
Nguyen Vinh Trung, Sébastien Matamoros, Juan J Carrique-Mas, Nguyen Huu Nghia, Nguyen Thi Nhung, Tran Thi Bich Chieu, Ho Huynh Mai, Willemien van Rooijen, James Campbell, Jaap A Wagenaar, Anita Hardon, Nguyen Thi Nhu Mai, Thai Quoc Hieu, Guy Thwaites, Menno D de Jong, Constance Schultsz, Ngo Thi Hoa
We investigated the consequences of colistin use in backyard chicken farms in Vietnam by examining the prevalence of mcr-1 in fecal samples from chickens and humans. Detection of mcr-1-carrying bacteria in chicken samples was associated with colistin use and detection in human samples with exposure to mcr-1-positive chickens.
March 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28220972/quantitative-distinction-of-the-morphological-characteristic-of-erythrocyte-precursor-cells-with-texture-analysis-using-gray-level-co-occurrence-matrix
#20
Keigo Kono, Ruka Hayata, Satoru Murakami, Mai Yamamoto, Maiko Kuroki, Kana Nanato, Kazuto Takahashi, Keiko Miwa, Yutaka Tsutsumi, Kazunori Okada, Sanae Kaga, Taisei Mikami, Nobuo Masauzi
BACKGROUND: Morphological characteristics of blood cells are still qualitatively defined. So a texture analysis (Tx) method using gray level co-occurrence matrices (GLCMs; CM-Tx method) was applied to images of erythrocyte precursor cells (EPCs) for quantitatively distinguishing four types of EPC stages: proerythroblast, basophilic erythroblast, polychromatic erythroblast, and orthochromatic erythroblast. METHODS: Fifty-five images of four types of EPCs were downloaded from an atlas uploaded by the Blood Cell Morphology Standardization Subcommittee (BCMSS) of the Japanese Society of Laboratory Hematology (JSLH)...
February 21, 2017: Journal of Clinical Laboratory Analysis
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