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https://www.readbyqxmd.com/read/27935708/imidazolium-salts-mimicking-the-structure-of-natural-lipids-exploit-remarkable-properties-forming-lamellar-phases-and-giant-vesicles
#1
Patrick Drücker, Andreas Rühling, David Grill, Da Wang, Annette Draeger, Volker Gerke, Frank Glorius, Hans-Joachim Galla
Tailor-made ionic liquids based on imidazolium salts have recently attracted a large amount of attention because of their extraordinary properties and versatile functionality. An intriguing ability to interact with and stabilize membranes has already been reported for 1,3-dialkylimidazolium compounds. We now reveal further insights into the field by investigating 1,3-dimethyl-4,5-dialkylimidazolium (Cn-IMe·HI, n = 7, 11, 15) and 1,3-dibenzyl-4,5-dialkylimidazolium (Cn-IBn·HBr, n = 7, 11, 15) salts. Diverse alkyl chain lengths and headgroups differing in their steric demand were employed for the membrane interface interaction with bilayer membranes imitating the cellular plasma membrane...
December 9, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/27934518/imidazolium-based-lipid-analogues-and-their-interaction-with-phosphatidylcholine-membranes
#2
Da Wang, Djurre H de Jong, Andreas Rühling, Volker Lesch, Karina Shimizu, Stephanie Wulff, Andreas Heuer, Frank Glorius, Hans-Joachim Galla
4,5-Dialkylated imidazolium lipid salts are a new class of lipid analogues showing distinct biological activities. The potential effects of the imidazolium lipids on artificial lipid membranes and the corresponding membrane interactions was analyzed. Therefore, 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) was employed to create an established lipid monolayer model and a bilayer membrane. Mixed monolayers of DPPC and 4,5-dialkylimidazolium lipids differing by their alkyl chain length (C7, C11, and C15) were characterized by surface pressure-area (π-A) isotherms using a Wilhelmy film balance in combination with epifluorescence microscopy...
December 6, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/27934249/synthesis-of-phenanthro-1-10-9-8-cdefg-carbazole-based-conjugated-polymers-for-green-selective-organic-photodiodes
#3
Min Jae Sung, Seongwon Yoon, Soon-Ki Kwon, Yun-Hi Kim, Dae Sung Chung
A push-pull-type donor copolymer, named PP-TPD, was synthesized with the Suzuki coupling reaction using 6H-phenanthro[1,10,9,8-cdefg]carbazole (PCZ) as the donor unit and 1,3-bis(5-bromothiophen-2-yl)-5-octyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione (TPD) as the acceptor unit. The synthesized PP-TPD was systematically investigated in terms of crystallinity and thermal, electrical, electrochemical, and optical properties. PP-TPD revealed green-selective absorption with a narrow full width at half-maximum of 138 nm...
November 16, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27933086/genotypic-differences-in-phosphorus-efficiency-and-the-performance-of-physiological-characteristics-in-response-to-low-phosphorus-stress-of-soybean-in-southwest-of-china
#4
Tao Zhou, Yongli Du, Shoaib Ahmed, Ting Liu, Menglu Ren, Weiguo Liu, Wenyu Yang
Southwest of China is one of the major soybean (Glycine max L.) production regions in China with low availability of soil phosphorus (P). Whereas little information is available on P-efficient soybean genotypes in this region, even though using P-efficient soybean genotypes is a sustainable P management strategy for enhancing yield and P use efficiency. To assess the genetic variation on P use efficiency, 274 soybean genotypes were employed to compare the yields and P acquisition potentials in the field. Additionally, 10 representational genotypes (5 P-efficient genotypes and 5 P-inefficient genotypes) were grown in hydroponic media containing low P treatment (0...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27932619/ontogeny-of-cd4-t-lymphocytes-with-phenotypic-susceptibility-to-hiv-1-during-exclusive-and-non-exclusive-breastfeeding-in-hiv-1-exposed-ugandan-infants
#5
Elizabeth J McFarland, Tina M Powell, Carolyne Onyango-Makumbi, Weiming Zhang, Kelsey Melander, Prossy Naluyima, Samuel Okurut, Michael A Eller, Mary Glenn Fowler, Edward N Janoff
BACKGROUND: Among HIV-1-exposed infants, mixed breastfeeding is associated with higher postnatal HIV-1 transmission than exclusive breastfeeding, but the mechanisms of this differential risk are uncertain. METHODS: HIV-1-exposed, Ugandan infants were prospectively assessed over the first year of life for feeding practices and T cell maturation, intestinal homing (β7(hi)), activation, and HIV-1 co-receptor (CCR5) expression in peripheral blood. Infants receiving only breast milk and those with introduction of other foods prior to 6 months, categorized as exclusive and non-exclusive, respectively...
December 8, 2016: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27931053/hemodynamic-responses-to-blood-flow-restriction-and-resistance-exercise-to-muscular-failure
#6
C A Libardi, A M Catai, M Miquelini, A Borghi-Silva, V Minatel, I F Alvarez, J C Milan-Mattos, H Roschel, V Tricoli, C Ugrinowitsch
The aim of the present study was to compare hemodynamic responses between blood flow-restricted resistance exercise (BFR-RE), high-intensity resistance exercise (HI-RE) and low-intensity resistance exercise (LI-RE) performed to muscular failure. 12 men (age: 20±3 years; body mass: 73.5±9 kg; height: 174±6 cm) performed 4 sets of leg press exercises using BFR-RE (30% of 1-RM), HI-RE (80% of 1-RM) and LI-RE (30% of 1-RM) protocols. Systolic (SBP) and diastolic blood pressure (DBP), heart rate (HR), stroke volume (SV), cardiac output (CO) and total peripheral vascular resistance (TPR) were measured on a beat-to-beat continuous basis by a noninvasive photoplethysmographic arterial pressure device...
December 8, 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/27930572/acute-onset-chronic-inflammatory-demyelinating-polyneuropathy-in-hantavirus-and-hepatitis-b-virus-coinfection-a-case-report
#7
Jong Youb Lim, Young-Ho Lim, Eun-Hi Choi
INTRODUCTION: Chronic inflammatory demyelinating polyneuropathy (CIDP) is an acquired autoimmune disorder with progressive weakness. Acute-onset CIDP resembles Guillain-Barre syndrome (GBS), a rapidly progressive disorder, and follows a chronic course. To our knowledge, no case of acute-onset CIDP in hantavirus and hepatitis B virus (HBV) coinfection has been reported previously. CLINICAL FINDINGS: We report a case of acute-onset CIDP that was initially diagnosed as GBS...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27930351/hydrogen-peroxide-responsive-nanoparticle-reduces-myocardial-ischemia-reperfusion-injury
#8
Soochan Bae, Minhyung Park, Changsun Kang, Serkan Dilmen, Tae Hi Kang, Dong Goo Kang, Qingen Ke, Seung Uk Lee, Dongwon Lee, Peter M Kang
BACKGROUND: During myocardial ischemia/reperfusion (I/R), a large amount of reactive oxygen species (ROS) is produced. In particular, overproduction of hydrogen peroxide (H2O2) is considered to be a main cause of I/R-mediated tissue damage. We generated novel H2O2-responsive antioxidant polymer nanoparticles (PVAX and HPOX) that are able to target the site of ROS overproduction and attenuate the oxidative stress-associated diseases. In this study, nanoparticles were examined for their therapeutic effect on myocardial I/R injury...
November 14, 2016: Journal of the American Heart Association
https://www.readbyqxmd.com/read/27930303/transcription-factor-zeb2-regulates-commitment-to-plasmacytoid-dendritic-cell-and-monocyte-fate
#9
Xiaodi Wu, Carlos G Briseño, Gary E Grajales-Reyes, Malay Haldar, Arifumi Iwata, Nicole M Kretzer, Wumesh Kc, Roxane Tussiwand, Yujiro Higashi, Theresa L Murphy, Kenneth M Murphy
Dendritic cells (DCs) and monocytes develop from a series of bone-marrow-resident progenitors in which lineage potential is regulated by distinct transcription factors. Zeb2 is an E-box-binding protein associated with epithelial-mesenchymal transition and is widely expressed among hematopoietic lineages. Previously, we observed that Zeb2 expression is differentially regulated in progenitors committed to classical DC (cDC) subsets in vivo. Using systems for inducible gene deletion, we uncover a requirement for Zeb2 in the development of Ly-6C(hi) monocytes but not neutrophils, and we show a corresponding requirement for Zeb2 in expression of the M-CSF receptor in the bone marrow...
December 5, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27930091/arthroscopic-hip-surgery-frequency-of-postoperative-mr-arthrographic-findings-in-asymptomatic-and-symptomatic-patients
#10
Chan-Hi Olaf Kim, Tobias J Dietrich, Patrick O Zingg, Claudio Dora, Christian W A Pfirrmann, Reto Sutter
Purpose To determine and compare the frequency of imaging abnormalities in asymptomatic and symptomatic patients after arthroscopic hip surgery. Materials and Methods This study was approved by the institutional review board. Informed consent was obtained from all patients. Thirty-four patients (17 asymptomatic and 17 symptomatic patients) underwent 1.5-T magnetic resonance (MR) arthrography of the hip 1 year after arthroscopic treatment of femoroacetabular impingement. Two readers independently analyzed all MR arthrographic images for the presence of abnormal imaging findings, including capsular adhesions at the femoral neck, obliteration of the paralabral sulcus, labral defects, and defects of the hip capsule in several anatomic positions (anterior to posterior)...
December 7, 2016: Radiology
https://www.readbyqxmd.com/read/27929501/volumetric-modulated-arc-therapy-using-multicriteria-optimization-for-body-and-extremity-sarcoma
#11
Michael R Young, David L Craft, Caroline M Colbert, Kyla Remillard, Liam Vanbenthuysen, Yi Wang
This study evaluates the implementation of volumetric-modulated arc therapy (VMAT) using multicriteria optimization (MCO) in the RayStation treatment planning system (TPS) for complex sites, namely extremity and body sarcoma. The VMAT-MCO algorithm implemented in RayStation is newly developed and requires an integrated, comprehensive analysis of plan generation, delivery, and treatment efficiency. Ten patients previously treated by intensity-modulated radiation therapy (IMRT) with MCO were randomly selected and replanned using VMAT-MCO...
November 8, 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/27929483/a-dosimetric-evaluation-of-knowledge-based-vmat-planning-with-simultaneous-integrated-boosting-for-rectal-cancer-patients
#12
Hao Wu, Fan Jiang, Haizhen Yue, Sha Li, Yibao Zhang
RapidPlan, a commercial knowledge-based optimizer, has been tested on head and neck, lung, esophageal, breast, liver, and prostate cancer patients. To appraise its performance on VMAT planning with simultaneous integrated boosting (SIB) for rectal cancer, this study configured a DVH (dose-volume histogram) estimation model consisting 80 best-effort manual cases of this type. Using the model-generated objectives, the MLC (multileaf collimator) sequences of other 70 clinically approved plans were reoptimized, while the remaining parameters, such as field geometry and photon energy, were maintained...
November 8, 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/27928087/operational-assessment-of-long-lasting-insecticidal-nets-by-using-an-anopheles-salivary-biomarker-of-human-vector-contact
#13
Mahoutin H Noukpo, Georgia B Damien, Emmanuel Elanga-N'Dille, André B Sagna, Papa M Drame, Evelyne Chaffa, Olayidé Boussari, Vincent Corbel, Martin Akogbéto, Franck Remoue
The widespread implementation of long-lasting insecticidal nets (LLINs) is a major intervention method for malaria control. Although the LLINs coverage increases, information available on the physical integrity (PI) of implemented LLINs is incomplete. This study aimed to validate human IgG antibody (Ab) response to Anopheles gSG6-P1 salivary peptide antigen, previously demonstrated as a pertinent biomarker of human exposure to Anopheles bites, for evaluating the PI of LLINs in field conditions. We analyzed data from 262 randomly selected children (< 5 years of age) in health districts of Benin...
December 7, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27928009/influence-of-plasma-cell-niche-factors-on-the-recruitment-and-maintenance-of-irf4hi-plasma-cells-and-plasmablasts-in-vaccinated-siv-infected-rhesus-macaques-with-low-and-high-viremia
#14
Julia M Shaw, Leia K Miller-Novak, Venkatramanan Mohanram, Katherine McKinnon, Thorsten Demberg, Diego A Vargas-Inchaustegui, David Venzon, Marjorie Robert-Guroff
: In a recent study, we found protection following SIV exposure correlated with rectal plasma cell frequency in vaccinated female rhesus macaques. We sought to determine if these same macaques maintained high mucosal plasma cell frequencies post-infection and if this translated to reduced viremia. Although delayed SIV acquisition did not predict subsequent viral control, alterations existed in the distribution of plasma cells and plasmablasts between macaques that exhibited high or low viremia...
December 7, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27927969/combined-single-cell-measurement-of-cytokine-mrna-and-protein-identifies-t-cells-with-persistent-effector-function
#15
Benoit P Nicolet, Aurelie Guislain, Monika C Wolkers
Effective T cell responses entail the coproduction of IFN-γ, TNF-α, and IL-2. Cytokine production is determined by transcriptional and posttranscriptional events. However, increased transcript levels do not always translate into protein production, and therefore simultaneous transcripts and protein measurement are essential for the appropriate analysis of T cell responses. In this study, we optimized flow cytometry-based fluorescence in situ hybridization (Flow-FISH) for IFN-γ to multicolor flow cytometry that allows for single-cell measurement of mRNA and protein levels...
December 7, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27927967/the-common-r71h-g230a-r293q-human-tmem173-is-a-null-allele
#16
Seema Patel, Steven M Blaauboer, Heidi R Tucker, Samira Mansouri, Juan Sebastian Ruiz-Moreno, Lutz Hamann, Ralf R Schumann, Bastian Opitz, Lei Jin
TMEM173 encodes MPYS/STING and is an innate immune sensor for cyclic dinucleotides (CDNs) playing a critical role in infection, inflammation, and cancer. The R71H-G230A-R293Q (HAQ) of TMEM173 is the second most common human TMEM173 allele. In this study, using data from the 1000 Genomes Project we found that homozygous HAQ individuals account for ∼16.1% of East Asians and ∼2.8% of Europeans whereas Africans have no homozygous HAQ individuals. Using B cells from homozygous HAQ carriers, we found, surprisingly, that HAQ/HAQ carriers express extremely low MPYS protein and have a decreased TMEM173 transcript...
December 7, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27927724/myeloid-bmal1-deletion-increases-monocyte-recruitment-and-worsens-atherosclerosis
#17
Mingyu Huo, Yuhong Huang, Dan Qu, Hongsong Zhang, Wing Tak Wong, Ajay Chawla, Yu Huang, Xiao Yu Tian
BMAL1, the nonredundant transcription factor in the core molecular clock, has been implicated in cardiometabolic diseases in mice and humans. BMAL1 controls the cyclic trafficking of Ly6c(hi) monocytes to sites of acute inflammation. Myeloid deficiency of Bmal1 also worsens chronic inflammation in diet-induced obesity. We studied whether myeloid Bmal1 deletion promotes atherosclerosis by enhancing monocyte recruitment to atherosclerotic lesion. By generating Bmal1(FloxP/FloxP);LysM(Cre) mice on the Apoe(-/-) background, we showed that Bmal1 deletion in myeloid cells increased the size of atherosclerotic lesion...
December 7, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27925146/assessment-of-diagnostics-tools-for-sarcopenia-severity-using-the-item-response-theory-irt
#18
M Steffl, M Musalek, V Kramperova, M Petr, E Kohlikova, I Holmerova, L Volicer
OBJECTIVE: To use the item response theory (IRT) methods to examine the degree to which the four selected tools reflect sarcopenia and to arrange them according to their ability to estimate sarcopenia severity. DESIGN: A cross-sectional study aimed at verifying the possibilities of using diagnostic tools for sarcopenia. SETTING AND PARTICIPANTS: The study included residents living in an assisted living unit at the Senior Centre in Blansko (South Moravia, Czech Republic) (n=77)...
2016: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/27924415/detection-of-infectious-bronchitis-virus-793b-avian-metapneumovirus-mycoplasma-gallisepticum-and-mycoplasma-synoviae-in-poultry-in-ethiopia
#19
S Hutton, J Bettridge, R Christley, T Habte, K Ganapathy
A survey was conducted into respiratory infectious diseases of poultry on a chicken breeder farm run by the Ethiopian Institute of Agricultural Research (EIAR), located in Debre Zeit, Ethiopia. Oropharyngeal swabs were collected from 117 randomly selected birds, and blood was taken from a subset of 73 of these birds. A combination of serological and molecular methods was used for detection of pathogens. For the first time in Ethiopia, we report the detection of variant infectious bronchitis virus (793B genotype), avian metapneumovirus subtype B and Mycoplasma synoviae in poultry...
December 6, 2016: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/27923953/seroevidence-for-a-high-prevalence-of-subclinical-infection-with-avian-influenza-a-h5n1-virus-among-workers-in-a-live-poultry-market-in-indonesia
#20
Kazufumi Shimizu, Laksmi Wulandari, Emmanuel D Poetranto, Retno A Setyoningrum, Resti Yudhawati, Amelia Sholikhah, Aldise M Nastri, Anna L Poetranto, Adithya Y R Candra, Edith F Puruhito, Yusuke Takahara, Yoshiaki Yamagishi, Masaoki Yamaoka, Hak Hotta, Takako Ustumi, Maria I Lusida, Soetjipto, Yohko K Shimizu, Gatot Soegiarto, Yasuko Mori
BACKGROUND:  In Indonesia, highly pathogenic avian influenza A(H5N1) virus has become endemic in poultry and has caused sporadic deadly infections in human. Since 2012, we have conducted fixed-point surveillance of avian influenza viruses at a live-poultry market in East Java, Indonesia. In this study, we examined the seroprevalence of avian influenza A(H5N1) virus infection among market workers. METHODS:  Sera were collected from 101 workers in early 2014 and examined for antibody activity against avian A(H5N1) Eurasian lineage virus by a hemagglutination-inhibition (HI) assay...
December 15, 2016: Journal of Infectious Diseases
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