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https://www.readbyqxmd.com/read/29345620/functional-role-of-the-type-1-pilus-rod-structure-in-mediating-host-pathogen-interactions
#1
Caitlin N Spaulding, Henry Louis Schreiber, Weili Zheng, Karen W Dodson, Jennie E Hazen, Matt S Conover, Fengbin Wang, Pontus Svenmarker, Areli Luna-Rico, Olivera Francetic, Magnus Andersson, Scott Hultgren, Edward H Egelman
Uropathogenic E. coli (UPEC), which cause urinary tract infections (UTI), utilize type 1 pili, a chaperone usher pathway (CUP) pilus, to cause UTI and colonize the gut. The pilus rod, comprised of repeating FimA subunits, provides a structural scaffold for displaying the tip adhesin, FimH. We solved the 4.2 Å resolution structure of the type 1 pilus rod using cryo-electron microscopy. Residues forming the interactive surfaces that determine the mechanical properties of the rod were maintained by selection based on a global alignment of fimA sequences...
January 18, 2018: ELife
https://www.readbyqxmd.com/read/29344932/mothers-early-mind-mindedness-predicts-educational-attainment-in-socially-and-economically-disadvantaged-british-children
#2
Elizabeth Meins, Charles Fernyhough, Luna C M Centifanti
Relations between mothers' mind-mindedness (appropriate and nonattuned mind-related comments) at 8 months (N = 206), and children's educational attainment at ages 7 (n = 158) and 11 (n = 156) were investigated in a British sample. Appropriate mind-related comments were positively correlated with reading and mathematics performance at both ages but only in the low-socioeconomic status (SES) group. Path analyses showed that in the low-SES group, appropriate mind-related comments directly predicted age-11 reading performance, with age-4 verbal ability mediating the relation between appropriate mind-related comments and age-7 reading...
January 18, 2018: Child Development
https://www.readbyqxmd.com/read/29341114/recombinant-human-hepatocyte-growth-factor-provides-protective-effects-in-celurein-induced-acute-pancreatitis-in-mice
#3
Mayrel Palestino-Domínguez, Mario Pelaez-Luna, Roberto Lazzarini-Lechuga, Ignacio Rodríguez-Ochoa, Verónica Souza, Roxana U Miranda, Benjamín Pérez-Aguilar, Leticia Bucio, Jens U Marquardt, Luis Enrique Gomez-Quiroz, María Concepción Gutiérrez-Ruiz
Acute pancreatitis is a multifactorial disease associated with profound changes of the pancreas induced by release of digestive enzymes that lead to increase in proinflammatory cytokine production, excessive tissue necrosis, edema, and bleeding. Elevated levels of hepatocyte growth factor (HGF) and its receptor c-Met have been observed in different chronic and acute pancreatic diseases including experimental models of acute pancreatitis. In the present study, we investigated the protective effects induced by the recombinant human HGF in a mouse model of cerulein-induced acute pancreatitis...
January 17, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29340832/sacral-neuromodulation-in-patients-with-congenital-faecal-incontinence-special-issues-and-review-of-the-literature
#4
L Lagares-Tena, L Millán-Paredes, L Lázaro-García, A Navarro-Luna, S Delgado-Rivilla, A Muñoz-Duyos
BACKGROUND: The aim of the present study was to evaluate the effectiveness of sacral neuromodulation (SNM) as a treatment for congenital faecal incontinence (FI). METHODS: A retrospective study was conducted on patients with congenital FI who had SNM surgery at our institution between October 2005 and June 2013. An initial percutaneous nerve evaluation was performed, and patients with an improvement of more than 50% in their symptoms had permanently implants for SNM treatment...
January 16, 2018: Techniques in Coloproctology
https://www.readbyqxmd.com/read/29340452/detection-of-multidrug-resistant-pseudomonas-aeruginosa-harboring-bla-ges-1-and-bla-ges-11-in-recife-brazil
#5
Valdemir Vicente da Silva Júnior, Laura Durão Ferreira, Lílian Rodrigues Alves, Adriane Borges Cabral, Paula Regina Luna de Araújo Jácome, Paulo Sérgio Ramos de Araújo, Ana Catarina de Souza Lopes, Maria Amélia Vieira Maciel
INTRODUCTION: Pseudomonas aeruginosa, an important pathogen globally, presents several resistance mechanisms. This study aimed to investigate the presence of bla GES in clinical isolates of Pseudomonas aeruginosa obtained from various clinical specimens from patients admitted to three different hospitals in Recife, Brazil. The Guiana extended spectrum beta-lactamase (GES) enzymes are responsible for conferring broad spectrum resistance to beta-lactam drugs, including the carbapenems. METHODS: A total of 100 carbapenem-resistant P...
November 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/29339623/effects-of-scale-and-froude-number-on-the-hydraulics-of-waste-stabilization-ponds
#6
Isabela De Luna Vieira, Jhonatan Barbosa Da Silva, Carlos Nobuyoshi Ide, Johannes Gérson Janzen
This paper presents the findings from a series of computational fluid dynamics simulations to estimate the effect of scale and Froude number on hydraulic performance and effluent pollutant fraction of scaled waste stabilization ponds designed using Froude similarity. Prior to its application, the model was verified by comparing the computational and experimental results of a model scaled pond, showing good agreement and confirming that the model accurately reproduces the hydrodynamics and tracer transport processes...
January 2018: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/29338712/association-between-the-level-of-education-and-knowledge-attitudes-and-practices-regarding-dengue-in-the-caribbean-region-of-colombia
#7
Fredi Alexander Diaz-Quijano, Ruth Aralí Martínez-Vega, Alfonso J Rodriguez-Morales, Ronald Alexander Rojas-Calero, María Lucrecia Luna-González, Ronald Giovanny Díaz-Quijano
BACKGROUND: Community integration in dengue control requires assessments of knowledge, attitudes and practices (KAPs), which can vary widely according to demographic and educational factors. We aimed to describe and compare the KAPs according to level of education in municipalities in the Caribbean region of Colombia. METHODS: A survey was administered from October to December 2015, including families selected through probabilistic sampling in eleven municipalities...
January 16, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29338117/nestin-expression-in-primary-and-metastatic-uveal-melanoma-possible-biomarker-for-high-risk-uveal-melanoma
#8
Luna Djirackor, Dilem Shakir, Helen Kalirai, Goran Petrovski, Sarah E Coupland
PURPOSE: Nestin, a member of the intermediate filament protein family, has been described as a putative cancer stem cell marker (CSC) in uveal melanoma and poor prognostic factor in a variety of tumours, including cutaneous melanoma. In this study, we examined the expression of nestin in primary (PUM) and metastatic uveal melanoma (MUM) samples, and correlated the findings with histological, clinical and survival data. METHODS: Nestin expression was assessed by immunohistochemistry in 141 PUM and 26 MUM samples; 11 PUM cases were matched with their corresponding metastases...
January 16, 2018: Acta Ophthalmologica
https://www.readbyqxmd.com/read/29331276/analyzing-recommender-systems-for-health-promotion-using-a-multidisciplinary-taxonomy-a-scoping-review
#9
Santiago Hors-Fraile, Octavio Rivera-Romero, Francine Schneider, Luis Fernandez-Luque, Francisco Luna-Perejon, Anton Civit-Balcells, Hein de Vries
BACKGROUND: Recommender systems are information retrieval systems that provide users with relevant items (e.g., through messages). Despite their extensive use in the e-commerce and leisure domains, their application in healthcare is still in its infancy. These systems may be used to create tailored health interventions, thus reducing the cost of healthcare and fostering a healthier lifestyle in the population. OBJECTIVE: This paper identifies, categorizes, and analyzes the existing knowledge in terms of the literature published over the past 10 years on the use of health recommender systems for patient interventions...
December 28, 2017: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/29329541/a-role-for-endothelial-nitric-oxide-synthase-in-intestinal-stem-cell-proliferation-and-mesenchymal-colorectal-cancer
#10
Jon Peñarando, Laura M López-Sánchez, Rafael Mena, Silvia Guil-Luna, Francisco Conde, Vanessa Hernández, Marta Toledano, Victoria Gudiño, Michela Raponi, Caroline Billard, Carlos Villar, César Díaz, José Gómez-Barbadillo, Juan De la Haba-Rodríguez, Kevin Myant, Enrique Aranda, Antonio Rodríguez-Ariza
BACKGROUND: Nitric oxide (NO) has been highlighted as an important agent in cancer-related events. Although the inducible nitric oxide synthase (iNOS) isoform has received most attention, recent studies in the literature indicate that the endothelial isoenzyme (eNOS) can also modulate different tumor processes including resistance, angiogenesis, invasion, and metastasis. However, the role of eNOS in cancer stem cell (CSC) biology and mesenchymal tumors is unknown. RESULTS: Here, we show that eNOS was significantly upregulated in VilCre ERT2 Apc fl/+ and VilCre ERT2 Apc fl/fl mouse intestinal tissue, with intense immunostaining in hyperproliferative crypts...
January 10, 2018: BMC Biology
https://www.readbyqxmd.com/read/29327354/a-validated-liquid-chromatography-high-resolution-tandem-mass-spectrometry-method-for-the-simultaneous-quantitation-of-tryptophan-kynurenine-kynurenic-acid-and-quinolinic-acid-in-human-plasma
#11
Kathrin Arnhard, Florian Pitterl, Barbara Sperner-Unterweger, Dietmar Fuchs, Therese Koal, Herbert Oberacher
Tryptophan (TRP) catabolism via the kynurenine pathway is considered to represent a major link between inflammation and various diseases, including neurodegenerative disorders, depression, schizophrenia, multiple sclerosis, cardiovascular disease, and cancer. The kynurenine pathway and levels of TRP and its metabolites kynurenine (KYN), kynurenic acid (KYNA) and quinolinic acid (QUIN) are well regulated under physiological conditions but may be altered as part of the activated immune response. A simple, sensitive and specific liquid chromatography-time of flight mass spectrometry method was developed for determining levels of the four compounds in human plasma samples...
January 12, 2018: Electrophoresis
https://www.readbyqxmd.com/read/29325991/bothrops-jararaca-accessory-venom-gland-is-an-ancillary-source-of-toxins-to-the-snake
#12
Richard Hemmi Valente, Milene Schmidt Luna, Ursula Castro de Oliveira, Milton Yutaka Nishiyama-Junior, Inácio de Loiola Junqueira-de-Azevedo, José Antonio Portes-Junior, Patricia Bianca Clissa, Luciana Godoy Viana, Leonardo Sanches, Ana Maria Moura-da-Silva, Jonas Perales, Norma Yamanouye
In Viperidae snakes, it has been attributed to the main venom gland, a component of the venom gland apparatus, the function of synthesizing all venom toxins and storing them inside a basal-central lumen. However, the role of the accessory gland is still unknown. Here, we analyzed the proteome and the transcriptome of the accessory gland during venom production and secretion cycle. We showed that the accessory gland expresses and synthesizes toxins that are similar to those produced by the main venom gland such as C-type lectin/C-type lectin-like proteins, metalloproteinase, phospholipase A2, cysteine rich secretory protein, nerve growth factor, vascular endothelial growth factor, serine proteinase, and l-amino acid oxidase...
January 8, 2018: Journal of Proteomics
https://www.readbyqxmd.com/read/29324295/analytical-determination-of-the-reducing-and-stabilization-agents-present-in-different-zostera-noltii-extracts-used-for-the-biosynthesis-of-gold-nanoparticles
#13
Rafael Zarzuela, Manuel Jesús Luna, María Luisa Almoraima Gil, María Jesús Ortega, José María Palacios-Santander, Ignacio Naranjo-Rodríguez, Juan José Delgado, Laura María Cubillana-Aguilera
The objective of this work was to ascertain the nature of the components responsible for the reducing and stabilizing properties of Zostera noltii extracts that lead to gold nanoparticle formation using chemical techniques of analysis. In order to achieve this aim, we try the synthesis of AuNPs with three different extracts from plants collected in the Bay of Cádiz (Spain). The n-butanol extract produced the best results. Taking this into account, four fractions were isolated by Sephadex LH-20 column chromatography from this extract and we studied their activity...
December 28, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29323784/nano-silver-vanadate-agvo3-synthesis-new-functionalities-and-applications
#14
REVIEW
Ana Paula de Melo Monteiro, Raphael Dias Holtz, Leandro Carneiro Fonseca, Carlos Henrique Zanini Martins, Marcelo de Sousa, Luis Augusto Visani de Luna, Djalma Lucas de Sousa Maia, Oswaldo Luiz Alves
Silver vanadates have been widely investigated because of their many interesting properties and their potential use in several applications. In addition to this, a large number of groups have investigated silver vanadates in the form of nanostructures. Here, we address first the synthesis and properties of nanosilver vanadate. Different techniques, such as precipitation, thermal decomposition, hydrothermal treatment, and sol-gel, are among the methods that have been employed for the controlled synthesis of silver vanadate...
January 11, 2018: Chemical Record: An Official Publication of the Chemical Society of Japan ... [et Al.]
https://www.readbyqxmd.com/read/29323069/recurrent-dermatophytosis-a-rising-problem-in-sikkim-a-himalayan-state-of-india
#15
Rekha Sharma, Luna Adhikari, Rukma Lall Sharma
Changing pattern of dermatophytic infection among people of Sikkim over the past few years and its recurrence rate has brought a need to do a study on clinical pattern and its recurrence from this part of the country. The objectives of this study are to discern the clinical patterns of dermatophytosis, identification of the isolated fungi to its species level and to see the pattern of its recurrence. The study was carried out from January 2015 to May 2016. A total of 192 samples were collected from the patients with clinical findings of dermatophytic infection...
October 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29321175/upregulation-of-gh-but-not-igf1-in-the-hippocampus-of-the-lactating-dam-after-kainic-acid-injury
#16
Elvira C Arellanes-Licea, Jose Avila-Mendoza, Elizabeth C Ramirez-Martinez, Eugenia Ramos, Nancy Uribe-Gonzalez, Carlos Aramburo, Teresa Morales, Maricela Luna
Lactation embodies a natural model of morphological, neurochemical, and functional brain plasticity. In this reproductive stage, the hippocampus of the female is less sensitive to excitotoxins in contrast to nulliparity. Growth hormone (GH) and insulin-like growth factor 1 (IGF1) are known to be neuroprotective in several experimental models of brain lesion. Here, activation of the GH-IGF1 pituitary-brain axis following kainic acid (7.5 mg/kg ip KA) lesion was studied in lactating and nulliparous rats. Serum concentrations of GH and IGF1 were uncoupled in lactation...
January 10, 2018: Endocrine Connections
https://www.readbyqxmd.com/read/29318579/evaluation-of-icam-1-expression-and-vascular-changes-in-the-skin-of-patients-with-plaque-pustular-and-erythrodermic-psoriasis
#17
Aline L Bressan, Bruna L S Picciani, Luna Azulay-Abulafia, Anna K Fausto-Silva, Paula N Almeida, Karin S G Cunha, Eliane P Dias, Sueli Carneiro
BACKGROUND: Psoriasis is a chronic inflammatory disease. Pustular, erythrodermic, and extensive plaque psoriasis are responsible for systemic complications. Systemic capillary leak syndrome is the complication with greater progression to death and occurs due to vascular changes. PURPOSE: The aim of this study was to evaluate vascular changes through the expression of CD34 and ICAM-1 in plaque, pustular, and erythrodermic psoriasis. METHODS: The sample consisted of seven patients with erythrodermic psoriasis, 24 with moderate-severe plaque psoriasis, 14 with mild plaque psoriasis and 13 with pustular psoriasis...
January 10, 2018: International Journal of Dermatology
https://www.readbyqxmd.com/read/29318103/cecal-volvulus-following-a-right-nephrectomy-for-wilms-tumor-should-we-need-to-close-the-lateral-peritoneum
#18
Mauricio Gonzalez-Urquijo, Christian Ovalle-Chao, Eduardo Flores-Villalba, Ulises de Jesus Garza-Luna, Jose Humberto Velazco-De La Garza, Ulises Garza-Serna
Wilms' tumor (WT) accounts for 90% of all pediatric renal malignant tumors. The most common postoperative complication based on the National Wilms' Tumor Study is small bowel obstruction. We report on a 2-year-old girl with postoperative bowel obstruction following a right nephrectomy for WT. The patient was reintervened 48 hours after surgery and a cecal volvulus was found. Here, we will describe possible causes of this postoperative complication and discuss management.
January 2018: European Journal of Pediatric Surgery Reports
https://www.readbyqxmd.com/read/29313434/a-novel-%C3%AE-thalassemia-insertion-frameshift-mutation-between-codons-77-78-p-leu78profs-13-or-hbb-c-235_236insc-observed-in-a-family-in-bangladesh
#19
Abdul Aziz, Sudipta A Das, Waqar A Khan, Salma Sadiya, Bilquis Banu, Golam Sarwardi, Rowshon Z Luna
β-Thalassemia (β-thal) is one of the most common inherited hemoglobin (Hb) disorders, worldwide. A 28-year-old female and her husband came to Dhaka Shishu (Children) Hospital, Bangladesh for prenatal diagnosis for thalassemia mutations. We identified and characterized a novel β-thalassemia (β-thal) mutation due to an insertion of cytosine between codons 77 and 78 (p.Leu78Profs*13) found in mother in a heterozygous state. This mutation caused an insertion in the normal reading frame of the β-globin coding sequence and the new stop codon being the amino acid 90 (HBB: c...
July 2017: Hemoglobin
https://www.readbyqxmd.com/read/29313321/the-matrix-synthesis-and-anti-inflammatory-effect-of-autologous-leukocyte-poor-platelet-rich-plasma-in-human-cartilage-explants
#20
Mario Simental-Mendía, Félix Vilchez-Cavazos, Rubén García-Garza, Jorge Lara-Arias, Roberto Montes-de-Oca-Luna, Salvador Said-Fernández, Herminia G Martínez-Rodríguez
OBJECTIVE: To determine the effects of autologous leukocyte-poor platelet-rich plasma (LP-PRP) on the expression of markers involved in cartilage-extracellular matrix production and inflammation in cartilage explants bearing osteoarthritis. MATERIALS AND METHODS: Cartilage explants and LP-PRP were obtained from 10 patients who underwent total knee arthroplasty. The explants were cultured in spinner flasks for 28 days in the presence of interleukin (IL)-1β and/or LP-PRP...
January 9, 2018: Histology and Histopathology
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