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https://www.readbyqxmd.com/read/28635647/virulence-genes-of-s-aureus-from-dairy-cow-mastitis-and-contagiousness-risk
#1
Giada Magro, Stefano Biffani, Giulietta Minozzi, Ralf Ehricht, Stefan Monecke, Mario Luini, Renata Piccinini
Staphylococcus aureus (S. aureus) is a major agent of dairy cow intramammary infections: the different prevalences of mastitis reported might be related to a combination of S. aureus virulence factors beyond host factors. The present study considered 169 isolates from different Italian dairy herds that were classified into four groups based on the prevalence of S. aureus infection at the first testing: low prevalence (LP), medium-low (MLP), medium-high (MHP) and high (HP). We aimed to correlate the presence of virulence genes with the prevalence of intramammary infections in order to develop new strategies for the control of S...
June 21, 2017: Toxins
https://www.readbyqxmd.com/read/28633292/ahp2-ahp3-and-ahp5-act-downstream-of-cki1-in-arabidopsis-female-gametophyte-development
#2
Zhenning Liu, Li Yuan, Xiaoya Song, Xiaolin Yu, Venkatesan Sundaresan
Histidine phosphotransfer proteins (HPs) are key elements of the two-component signaling system, which act as a shuttle to transfer phosphorylation signals from histidine kinases (HKs) to response regulators (RRs). CYTOKININ INDEPENDENT 1 (CKI1), a key regulator of central cell specification in the Arabidopsis female gametophyte, activates the cytokinin signaling pathway through the Arabidopsis histidine phosphotransfer proteins (AHPs). There are five HP genes in Arabidopsis, AHP1-AHP5, but it remains unknown which AHP genes act downstream of CKI1 in Arabidopsis female gametophyte development...
June 13, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28631929/-13-c-dynamic-nuclear-polarization-using-a-trimeric-gd-3-complex-as-an-additive
#3
Peter Niedbalski, Christopher Parish, Qing Wang, Andhika Kiswandhi, Zahra Hayati, Likai Song, Lloyd Laporca Lumata
Dissolution dynamic nuclear polarization (DNP) is one of the most successful techniques that resolves the insensitivity problem in liquid-state nuclear magnetic resonance (NMR) spectroscopy and imaging (MRI) by amplifying the signal by several thousand-fold. One way to further improve the DNP signal is the inclusion of trace amounts of lanthanides in DNP samples doped with trityl OX063 free radical as the polarizing agent. In practice, stable monomeric gadolinium complexes such as Gd-DOTA or Gd-HP-DO3A are used as beneficial additives in DNP samples, further boosting the DNP-enhanced solid-state 13C polarization by a factor of 2 or 3...
June 20, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28629696/new-criteria-to-determine-the-destabilization-of-the-acidogenic-anaerobic-co-digestion-of-organic-fraction-of-municipal-solid-waste-ofmsw-with-mixed-sludge-ms
#4
R Angeriz-Campoy, L A Fdez-Güelfo, Vinay Kumar Tyagi, C J Álvarez-Gallego, L I Romero-García
Effect of hydraulic retention time (HRT) on bio-hydrogen production from co-digestion of organic fraction of municipal solid waste (OFMSW) and mixed sludge (MS) in dry thermophilic conditions (55°C and 20% total solids) was investigated. A decreasing sequence of six HRTs, from 2.9 to 0.8-days, was performed to evaluate the stability of the system and the influence of HRT on the organic matter solubilization, the daily hydrogen production (HP) and the specific hydrogen production (SHP). Best results were obtained operating at 1...
June 12, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28629573/added-value-of-prone-ct-in-the-assessment-of-honeycombing-and-classification-of-usual-interstitial-pneumonia-pattern
#5
Minjae Kim, Sang Min Lee, Jae-Woo Song, Kyung-Hyun Do, Hyun Joo Lee, Soyeoun Lim, Jooae Choe, Kye Jin Park, Hyo Jung Park, Hwa Jung Kim, Joon Beom Seo
OBJECTIVE: To retrospectively investigate whether prone CT improves identification of honeycombing and classification of UIP patterns in terms of interobserver agreement and accuracy using pathological results as a reference standard. MATERIALS AND METHODS: Institutional review board approval with waiver of patients' informed consent requirement was obtained. HRCTs of 86 patients with pathologically proven UIP, NSIP and chronic HP between January 2011 and April 2015 were evaluated by 8 observers...
June 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28628750/ergonomic-benefits-from-a-laparoscopic-instrument-with-rotatable-handle-piece-depend-on-the-area-of-the-operating-field-and-working-height
#6
Benjamin Steinhilber, Florian Reiff, Robert Seibt, Monika A Rieger, Peter Martus, Bernhard Kraemer, Ralf Rothmund
Objective To evaluate the effect of a laparoscopic instrument with a 360° rotatable handle piece (rot-HP) on biomechanical stress and precision in different areas of a simulated operating field at two working heights. Background Surgeons performing laparoscopic procedures are exposed to biomechanical stress and have an increased risk of musculoskeletal complaints. Method Fifty-seven healthy subjects (27 men, median age 26) without experience in laparoscopy performed a precision task in four quadrants (A-D) of the operating field using the rot-HP or a common fixed handle piece (fixed-HP) at an individually adjusted lower or higher working height...
June 1, 2017: Human Factors
https://www.readbyqxmd.com/read/28628201/designing-drug-response-experiments-and-quantifying-their-results
#7
Marc Hafner, Mario Niepel, Kartik Subramanian, Peter K Sorger
We developed a Python package to help in performing drug-response experiments at medium and high throughput and evaluating sensitivity metrics from the resulting data. In this article, we describe the steps involved in (1) generating files necessary for treating cells with the HP D300 drug dispenser, by pin transfer or by manual pipetting; (2) merging the data generated by high-throughput slide scanners, such as the Perkin Elmer Operetta, with treatment annotations; and (3) analyzing the results to obtain data normalized to untreated controls and sensitivity metrics such as IC50 or GR50 ...
June 19, 2017: Current Protocols in Chemical Biology
https://www.readbyqxmd.com/read/28627459/peripheral-blood-gene-expression-of-acute-phase-proteins-in-people-with-first-episode-psychosis
#8
Jie Yin Yee, Milawaty Nurjono, Wai Yee Ng, Stephanie Ruth Teo, Tih-Shih Lee, Jimmy Lee
BACKGROUND: There is a growing interest in the association between schizophrenia and the activation of inflammatory system with signs of acute phase (AP) response. Majority of such studies had focused on C-reactive protein (CRP). The aims of the present study were (i) to examine the gene expression profiles of other acute phase proteins (APP), namely haptoglobin (HP), alpha-1 antitrypsin (A1T), and alpha-2 macroglobulin (A2M) in patients with first episode psychosis (FEP) over a period of three months and (ii) to explore the association between APP levels and severity of symptoms...
June 13, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28627348/-effect-of-hydrogen-rich-water-on-the-cd34-expression-in-lesion-boundary-brain-tissue-of-rats-with-traumatic-brain-injury
#9
Ying Liu, Qing Lan, Difen Wang, Xianjun Chen, Jia Yuan, Hailing Zhang
OBJECTIVE: To observe the effect of hydrogen-rich water on the CD34 expression and angiogenesis in lesion boundary brain tissue of rats with traumatic brain injury (TBI). METHODS: A total of 54 adult male Sprague-Dawley (SD) rats were divided into three groups by random number table: namely sham-operated group (sham group), trauma group (TBI group), and trauma + hydrogen-rich water group (TBI+HW group), the rats in each group were subdivided into 1, 3 and 7 days subgroups according to the time points after trauma, with 6 rats in each subgroup...
March 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28625910/a-high-fat-diet-enhances-the-sensitivity-of-chick-adipose-tissue-to-the-effects-of-centrally-injected-neuropeptide-y-on-gene-expression-of-adipogenesis-associated-factors
#10
Guoqing Wang, Carli A Williams, Betty R McConn, Mark A Cline, Elizabeth R Gilbert
The purpose of this study was to determine how dietary macronutrient composition and exogenous neuropeptide Y (NPY) affect mRNA abundance of factors associated with lipid metabolism in chick adipose tissue. Chicks were fed one of three isocaloric (3000kcal metabolizable energy (ME)/kg) diets after hatch: high carbohydrate (HC; control), high fat (HF; 30% of ME from soybean oil) or high protein (HP; 25% crude protein). On day 4 post-hatch, vehicle or 0.2nmol of NPY was injected intracerebroventricularly and abdominal and subcutaneous fat depots collected 1h later...
June 15, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/28625747/molecular-identification-and-characterization-of-haptoglobin-in-teleosts-revealed-an-important-role-on-fish-viral-infections
#11
Héctor Cordero, Chang Hong Li, Elena Chaves-Pozo, María Ángeles Esteban, Alberto Cuesta
Haptoglobin (Hp) molecule has been cloned and characterized in two marine teleosts (gilthead seabream and European sea bass), obtaining putative proteins of 319 residues encoded by an ORF of 960 bp in both species. However, the matrix of similarity revealed low identities among bony fish species 78.9% (seabream-sea bass), 43% (seabream/seabass-zebrafish) and lower than 20% with sharks and human. The protein sequences showed a signal peptide from the position 1 to 23, a trypsin domain from 47 to 297, and several predicted disulfide bridges and glycosylation sites...
June 15, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28625243/-experimental-study-on-effect-of-airway-pressure-on-cardiopulmonary-resuscitation
#12
Dingyu Tan, Feng Sun, Yangyang Fu, Shihuan Shao, Yazhi Zhang, Yingying Hu, Jun Xu, Huadong Zhu, Xuezhong Yu
OBJECTIVE: To observe the effect of different airway pressure on ventilation, organ perfusion and return of spontaneous circulation (ROSC) of cardiac arrest (CA) pigs during cardiopulmonary resuscitation (CPR), and to explore the possible beneficial mechanism of positive airway pressure during CPR. METHODS: Twenty healthy landrace pigs of clean grade were divided into low airway pressure group (LP group, n = 10) and high airway pressure group (HP group, n = 10) with random number table...
June 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28625239/-effects-of-human-umbilical-cord-mesenchymal-stem-cells-on-vascular-endothelial-growth-factor-and-il-6-expression-in-tissue-of-ami-rats
#13
Haihuan Xu, Huajiang Dong, Mingliang Zhao
OBJECTIVE: To investigate the effects of human umbilical cord mesenchymal stem cells (UC-MSCs) on vascular endothelial growth factor (VEGF) and interleukin-6 (IL-6) expression in acute myocardium infarction (AMI) rats. METHODS: The human UC-MSCs were cultured to the 4th generation for experiment. Sixty male Sprague-Dawley (SD) rats were randomly divided into sham group, AMI model group and UC-MSCs group, with 20 in each group. AMI animal model was produced by ligation of anterior descending coronary artery; in the sham group, the threading vein was gone below without ligation...
June 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28624080/impact-of-the-homogenization-process-on-the-structure-and-antioxidant-properties-of-chitosan-lignin-composite-films
#14
Kevin Crouvisier-Urion, Aurélie Lagorce-Tachon, Camille Lauquin, Pascale Winckler, Wirongrong Tongdeesoontorn, Sandra Domenek, Frédéric Debeaufort, Thomas Karbowiak
This work investigated the impact of two homogenization treatments, High Shear (HS) and High Pressure (HP), on the structure and antioxidant activity of chitosan-lignin bio-composite films. Laser light scattering analysis revealed that smaller lignin particles were obtained after HP processing, around 0.6μm, compared to HS treatment, between 2.5 and 5μm. Moreover, these particles were more homogeneously distributed in the chitosan film matrix after HP process, while some aggregates remained after HS treatment, as highlighted by two-photon microscopy...
December 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28624044/predictors-of-a-histopathologic-diagnosis-of-complicated-appendicitis
#15
Jonathan B Imran, Tarik D Madni, Christian T Minshall, Ali A Mokdad, Madhu Subramanian, Audra T Clark, Herb A Phelan, Michael W Cripps
BACKGROUND: Despite its utilization, the intraoperative (IO) assessment of complicated appendicitis (CA) is subjective. The histopathologic (HP) diagnosis should be the gold standard in identifying patients with CA; however, it is not immediately available to guide postoperative management. The objective of this study was to identify predictors of an HP diagnosis of CA. MATERIALS AND METHODS: A retrospective review of all patients who underwent appendectomy at our institution from 2011-2013 was conducted...
June 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28622925/subsistence-strategies-during-the-late-pleistocene-in-the-southern-cape-of-south-africa-comparing-the-still-bay-of-blombos-cave-with-the-howiesons-poort-of-klipdrift-shelter
#16
Jerome P Reynard, Christopher S Henshilwood
The Still Bay (SB) and Howiesons Poort (HP) were two significant techno-complexes in the Middle Stone Age and key periods in the expression of behavioral complexity. In this study, we compare the recently excavated fauna from the SB layers at Blombos Cave (BBC) with that from the HP levels at Klipdrift Shelter (KDS) in the southern Cape of South Africa. We consider our findings in the framework of recent models for early human subsistence behavior. In particular, we link our study with models involving resource intensification to examine whether foraging strategies in the HP were more or less intensive than those in the SB...
July 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/28620309/inhibition-of-the-trpm2-and-trpv1-channels-through-hypericum-perforatum-in-sciatic-nerve-injury-induced-rats-demonstrates-their-key-role-in-apoptosis-and-mitochondrial-oxidative-stress-of-sciatic-nerve-and-dorsal-root-ganglion
#17
Fuat Uslusoy, Mustafa Nazıroğlu, Bilal Çiğ
Sciatic nerve injury (SNI) results in neuropathic pain, which is characterized by the excessive Ca(2+) entry, reactive oxygen species (ROS) and apoptosis processes although involvement of antioxidant Hypericum perforatum (HP) through TRPM2 and TRPV1 activation has not been clarified on the processes in SNI-induced rat, yet. We investigated the protective property of HP on the processes in the sciatic nerve and dorsal root ganglion neuron (DRGN) of SNI-induced rats. The rats were divided into five groups as control, sham, sham+HP, SNI, and SNI+HP...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28619168/comparison-of-asian-porcine-high-fever-disease-isolates-of-porcine-reproductive-and-respiratory-syndrome-virus-to-united-states-isolates-for-their-ability-to-cause-disease-and-secondary-bacterial-infection-in-swine
#18
Susan L Brockmeier, Crystal L Loving, Mitchel V Palmer, Allyn Spear, Tracy L Nicholson, Kay S Faaberg, Kelly M Lager
Epidemiologic data from Asian outbreaks of highly-pathogenic (HP) porcine reproductive and respiratory syndrome virus (PRRSV) suggest that disease severity was associated with both the virulence of the PRRSV isolates and secondary bacterial infections. Previous reports have indicated that U.S. isolates of PRRSV predispose to secondary bacterial infections as well, but the severity of disease that occurred in Asia in pigs infected with these HP-PRRSV strains has not been reported in the U.S. The objectives of this research were to compare the pathogenesis of Asian and U...
May 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28617305/fibrotic-hypersensitivity-pneumonitis-key-issues-in-diagnosis-and-management
#19
REVIEW
Vasileios Kouranos, Joseph Jacob, Andrew Nicholson, Elizabetta Renzoni
The diagnosis of hypersensitivity pneumonitis (HP) relies on the clinical evaluation of a number of features, including a history of significant exposure to potentially causative antigens, physical examination, chest CT scan appearances, bronchoalveolar lavage lymphocytosis, and, in selected cases, histology. The presence of fibrosis is associated with higher morbidity and mortality. Differentiating fibrotic HP from the idiopathic interstitial pneumonias can be a challenge. Furthermore, even in the context of a clear diagnosis of fibrotic HP, the disease behaviour can parallel that of idiopathic pulmonary fibrosis in a subgroup, with inexorable progression despite treatment...
June 15, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/28616090/histochemical-and-immunohistochemical-study-of-mucinous-rectal-carcinoma
#20
C V Lungulescu, S Răileanu, G Afrem, B S Ungureanu, D N Florescu, I A Gheonea, S Șovăilă, Ș Crăițoiu
Colorectal cancer (CRC) is a major health problem worldwide. The objective of our study was to assess the histopathological (HP) and immunohistochemical (IHC) profile of mucins from signet ring (SR) and mucinous rectal carcinoma, while evaluating their value as a prognostic factor and muco-secretive ability. The HP study (76 cases) included 4 categories of patients: pure mucinous (PM), mixed mucinous components (MM) (50-80% of the tumor cells), mixed mucinous components (Mm) (< 50% of the tumor cells) and signet ring (SR)...
April 2017: Journal of Medicine and Life
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