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https://www.readbyqxmd.com/read/27933456/penicillin-v-acylases-from-gram-negative-bacteria-degrade-n-acylhomoserine-lactones-and-attenuate-virulence-in-pseudomonas-aeruginosa
#1
Avinash Vellore Sunder, Putri Dwi Utari, Sureshkumar Ramasamy, Ronald van Merkerk, Wim Quax, Archana Pundle
Virulence pathways in gram-negative pathogenic bacteria are regulated by quorum sensing mechanisms, through the production and sensing of N-acylhomoserine lactone (AHL) signal molecules. Enzymatic degradation of AHLs leading to attenuation of virulence (quorum quenching) could pave the way for the development of new antibacterials. Penicillin V acylases (PVAs) belong to the Ntn hydrolase superfamily, together with AHL acylases. PVAs are exploited widely in the pharmaceutical industry, but their role in the natural physiology of their native microbes is not clearly understood...
December 8, 2016: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27929689/participants-voices-from-within-a-healthy-lifestyle-group
#2
Tanya Park, Kim Foster, Kim Usher
Weight gain is a serious health concern. People with mental illnesses are at increased risk of weight gain. The primary treatment is lifestyle changes such as increasing physical activity and dietary changes. This qualitative study explored the experience of people with schizophrenia who participated in a healthy lifestyle program. Four themes were identified. The findings indicate that benefits of the program were more than physical health improvements and included regular access to a health professional, gaining social relationships, and a sense of belonging...
December 8, 2016: Issues in Mental Health Nursing
https://www.readbyqxmd.com/read/27926951/a-novel-mutation-of-the-calcium-sensing-receptor-gene-in-a-franconian-kindred-heterozygous-mutation-c-1697_1698deltg-exon-6
#3
M Cordes, T Kuwert, C Haag, F Raue
Familial hypocalciuric hypercalcemia (FHH) belongs to the disorders of a disturbed calcium homeostasis. Genetically, the disorder is inherited in an autosomal-dominant trait and represents an inactivating mutation of the calcium sensing receptor (CaSR) gene. We identified a Franconian kindred in which 6 individuals could be tested by molecular genetic means. In 5 individuals of 3 generations, the mutation could be classified as c.1697_1698delTG. This novel germline mutation creates a premature stop codon leading to a loss of 510 amino acids of the protein...
December 7, 2016: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/27919079/receptor-usage-dictates-hiv-1-restriction-by-human-trim5%C3%AE-in-dendritic-cell-subsets
#4
Carla M S Ribeiro, Ramin Sarrami-Forooshani, Laurentia C Setiawan, Esther M Zijlstra-Willems, John L van Hamme, Wikky Tigchelaar, Nicole N van der Wel, Neeltje A Kootstra, Sonja I Gringhuis, Teunis B H Geijtenbeek
The most prevalent route of HIV-1 infection is across mucosal tissues after sexual contact. Langerhans cells (LCs) belong to the subset of dendritic cells (DCs) that line the mucosal epithelia of vagina and foreskin and have the ability to sense and induce immunity to invading pathogens. Anatomical and functional characteristics make LCs one of the primary targets of HIV-1 infection. Notably, LCs form a protective barrier against HIV-1 infection and transmission. LCs restrict HIV-1 infection through the capture of HIV-1 by the C-type lectin receptor Langerin and subsequent internalization into Birbeck granules...
December 7, 2016: Nature
https://www.readbyqxmd.com/read/27911925/attenuation-of-quorum-sensing-regulated-virulence-of-pectobacterium-carotovorum-subsp-carotovorum-through-an-ahl-lactonase-produced-by-lysinibacillus-sp-gs50
#5
Sneha S Garge, Anuradha S Nerurkar
Quorum sensing (QS) is a mechanism in which Gram negative bacterial pathogens sense their population density through acyl homoserine lactones (AHLs) and regulate the expression of virulence factors. Enzymatic degradation of AHLs by lactonases, known as quorum quenching (QQ), is thus a potential strategy for attenuating QS regulated bacterial infections. We characterised the QQ activity of soil isolate Lysinibacillus sp. Gs50 and explored its potential for controlling bacterial soft rot of crop plants. Lysinibacillus sp...
2016: PloS One
https://www.readbyqxmd.com/read/27902397/vesivirus-2117-capsids-more-closely-resemble-sapovirus-and-lagovirus-particles-than-other-known-vesivirus-structures
#6
Michaela Conley, Edward Emmott, Richard Orton, David Taylor, Daniel Carneiro, Kazuyoshi Murata, Ian Goodfellow, Grant Hansman, David Bhella
Vesivirus 2117 is an adventitious agent that in 2009, was identified as a contaminant of CHO cells propagated in bioreactors at a pharmaceutical manufacturing plant belonging to Genzyme. The consequent interruption in supply of Fabrazyme and Cerezyme (drugs used to treat Fabry and Gaucher disease respectively), caused significant economic losses. Vesivirus 2117 is a member of the Caliciviridae; a family of small icosahedral viruses encoding a positive sense RNA genome. We have used cryo-electron microscopy and three dimensional image reconstruction to calculate a structure of vesivirus 2117 virus like particles as well as feline calicivirus and a chimeric sapovirus...
November 14, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27900934/gender-relations-and-women-s-reproductive-health-in-south-sudan
#7
Sumit Kane, Matilda Rial, Anthony Matere, Marjolein Dieleman, Jacqueline E W Broerse, Maryse Kok
BACKGROUND: In South Sudan, women disproportionately bear the burden of morbidity and mortality related to sexual and reproductive health, with a maternal mortality ratio of 789 deaths per 100,000 live births. DESIGN: A qualitative study was conducted to analyze how gendered social relations among the Fertit people affect women's ability to exercise control over their reproductive lives and thereby their sexual and reproductive health. Transcripts of 5 focus group discussions and 44 semi-structured interviews conducted with purposefully selected community members and health personnel were analyzed using Connell's relational theory of gender...
2016: Global Health Action
https://www.readbyqxmd.com/read/27899340/ecological-momentary-assessment-of-adolescent-problems-coping-efficacy-and-mood-states-using-a-mobile-phone-app-an-exploratory-study
#8
Rachel Kenny, Barbara Dooley, Amanda Fitzgerald
BACKGROUND: Mobile technologies have the potential to be used as innovative tools for conducting research on the mental health and well-being of young people. In particular, they have utility for carrying out ecological momentary assessment (EMA) research by capturing data from participants in real time as they go about their daily lives. OBJECTIVE: The aim of this study was to explore the utility of a mobile phone app as a means of collecting EMA data pertaining to mood, problems, and coping efficacy in a school-based sample of Irish young people...
November 29, 2016: JMIR Mental Health
https://www.readbyqxmd.com/read/27894321/encephalomyocarditis-virus-infection-in-macaca-sylvanus-and-hystrix-cristata-from-an-italian-rescue-centre-for-wild-and-exotic-animals
#9
Giusy Cardeti, Valeria Mariano, Claudia Eleni, Marco Aloisi, Goffredo Grifoni, Stefania Sittinieri, Giampiero Dante, Valeria Antognetti, Efrem Alessandro Foglia, Antonella Cersini, Alberigo Nardi
BACKGROUND: The Encephalomyocarditis virus (EMCV) is a small, non enveloped, positive sense single-stranded RNA virus in the genus Cardiovirus, family Picornaviridae, with two known serotypes. It is spread worldwide and infects a huge range of vertebrate hosts with zoonotic potential for humans. The pig is the mammal most likely to be impacted on with the disease, but EMCV occurrence has also been reported in non-human primates and in a variety of domestic, captive and wild animals. Until now, human cases have been very rare and the risk appears to be almost negligible in spite of human susceptibility to the infection...
November 28, 2016: Virology Journal
https://www.readbyqxmd.com/read/27891110/-my-child-has-cerebral-palsy-parental-involvement-and-children-s-school-engagement
#10
Armanda Pereira, Tânia Moreira, Sílvia Lopes, Ana R Nunes, Paula Magalhães, Sonia Fuentes, Natalia Reoyo, José C Núñez, Pedro Rosário
Engaged students tend to show school-committed behaviors (e.g., attend classes, get involved with the learning process), high achievement, and sense of belonging. However, students with disabilities are prone to show a lack of engagement with school due to the specific difficulties they have to handle. In fact, children with disabilities are likely to show poor participation in school when compared with children without disabilities. This poor involvement is related to their low autonomy to participate in the school activities, which, in turn, results in low school engagement...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27888122/the-sunflower-transcription-factor-hahb11-confers-tolerance-to-water-deficit-and-salinity-to-transgenic-arabidopsis-and-alfalfa-plants
#11
Julieta V Cabello, Jorge I Giacomelli, María C Gómez, Raquel L Chan
Homeodomain-leucine zipper (HD-Zip) transcription factors are unique to the plant kingdom; members of subfamily I are known to be involved in abiotic stress responses. HaHB11 belongs to this subfamily and it was previously shown that it is able to confer improved yield and tolerance to flooding via a quiescent strategy. Here we show that HaHB11 expression is induced by ABA, NaCl and water deficit in sunflower seedlings and leaves. Arabidopsis transgenic plants expressing HaHB11, controlled either by its own promoter or by the constitutive 35S CaMV, presented rolled leaves and longer roots than WT when grown under standard conditions...
November 22, 2016: Journal of Biotechnology
https://www.readbyqxmd.com/read/27879169/goal-orientation-and-well-being-in-college-athletes-the-importance-of-athletic-social-connectedness
#12
Heidi A Wayment, Andrew Schrack Walters
The present study examined the ability of an interpersonal construct called athletic connectedness to mediate the relationship between task and ego goal orientations and well-being. We operationalised athletic social connectedness as a sense of social belonging and sense of connection with teammates. We hypothesised that athletic social connectedness would be positively associated with task goals, negatively associated with ego goals, and would at least partially mediate the relationship between achievement goals and well-being...
November 23, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27875006/the-mental-health-care-needs-of-undocumented-migrants-an-exploratory-analysis-of-psychological-distress-and-living-conditions-among-undocumented-migrants-in-norway
#13
Trine Myhrvold, Milada Cvancarova Småstuen
BACKGROUND: Undocumented migrants are defined both nationally and internationally as an especially vulnerable group with regard to their health status, living conditions, and barriers to access to health care and social welfare. AIMS: The overall purpose of this study is to explore undocumented migrants' mental health care needs. More specifically, the aims are to explore how undocumented adults living in Norway perceive psychological distress, to gather insight on their living conditions and to explore associated living condition risk factors...
November 22, 2016: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/27862598/the-role-of-social-support-family-identification-and-family-constraints-in-predicting-post-traumatic-stress-after-cancer
#14
Samantha Swartzman, Fabio Sani, Alastair J Munro
OBJECTIVE: We compared social support with other potential psychosocial predictors of post-traumatic stress after cancer. These included family identification, or a sense of belonging to and commonality with family members, and family constraints, or the extent to which family members are closed, judgmental, or unreceptive in conversations about cancer. We also tested the hypothesis that family constraints mediate the relationship between family identification and cancer-related post-traumatic stress...
November 8, 2016: Psycho-oncology
https://www.readbyqxmd.com/read/27861460/existential-well-being-spirituality-or-well-being
#15
Anja Visser, Bert Garssen, Ad Jjm Vingerhoets
Measures of spirituality often contain the dimension existential well-being (EWB). However, EWB has been found to overlap with emotional and psychological well-being. Using the Spiritual Attitude and Involvement List (SAIL), we have further investigated the overlap between aspects of spirituality and of well-being among patients with cancer, by determining a) the divergent validity of the subscales of the SAIL compared with a well-being questionnaire and b) the differences in their associations to changes in pain and fatigue, and the occurrence of negative life events...
November 16, 2016: Journal of Nervous and Mental Disease
https://www.readbyqxmd.com/read/27852826/what-can-secondary-school-students-teach-educators-and-school-nurses-about-student-engagement-in-health-promotion-a-scoping-review
#16
Amy J Beck, Sandra M Reilly
Student engagement represents a critical component of a comprehensive school health (CSH) approach to health promotion. Nevertheless, questions remain about its implementation. This scoping review updates the field of student engagement in health promotion. Of the 1,388 located articles, 14 qualify for inclusion in this study. An analysis reveals four themes. CSH programs that incorporate student engagement promote a sense of belonging to a community, encourage meaningful involvement, give voice to student concerns, and advance supportive relationships...
November 16, 2016: Journal of School Nursing: the Official Publication of the National Association of School Nurses
https://www.readbyqxmd.com/read/27847930/work-activity-in-the-process-of-recovery-an-interpretive-phenomenological-analysis-of-the-experiences-of-people-with-a-schizophrenia-spectrum-diagnosis
#17
Anna Pańczak, Igor Pietkiewicz
OBJECTIVES: Having the opportunity to work has been found meaningful for individuals suffering from severe mental illness, in order to boost their self-esteem, provide a sense of control over their lives and of belonging to a community. There are no studies in Polish literature on the process of recovery from schizophrenia with reference to work activity. The objective of this research was to explore personal experiences of people employed in Vocational Development Centers. METHODS: Eight semi-structured interviews were conducted with adult patients...
2016: Psychiatria Polska
https://www.readbyqxmd.com/read/27837096/downregulation-of-the-alternative-sigma-factor-sigj-confers-a-photoprotective-phenotype-to-anabaena-pcc-7120
#18
Amit Srivastava, Klaus Brilisauer, Ashutosh K Rai, Anand Ballal, Karl Forchhammer, Anil K Tripathi
Alternative sigma factors belonging to the Group 3 are thought to play an important role in the adaptation of cyanobacteria to environmental challenges by altering expression of genes needed for coping with such stresses. In this study, the role of an alternative sigma factor, SigJ, was analyzed in the filamentous nitrogen-fixing cyanobacterium, Anabaena sp. PCC 7120 by knocking down the expression of the sigJ gene (alr0277) employing an anti-sense RNA-mediated approach. In the absence of any stress, the knock-down (KD0277) or the wild-type strain both grew similarly...
November 10, 2016: Plant & Cell Physiology
https://www.readbyqxmd.com/read/27836818/knowledge-exchange-and-discovery-in-the-age-of-social-media-the-journey-from-inception-to-establishment-of-a-parent-led-web-based-research-advisory-community-for-childhood-disability
#19
Dianne J Russell, Jennifer Sprung, Dayle McCauley, Olaf Kraus de Camargo, Francine Buchanan, Roman Gulko, Rachel Martens, Jan Willem Gorter
BACKGROUND: Efforts to involve parents and families in all aspects of research, from initiating the question through to dissemination and knowledge exchange, are increasing. While social media as a method for health communication has shown numerous benefits, including increasing accessibility, interactions with others, and access to health care information, little work has been published on the use of social media to enhance research partnerships. OBJECTIVE: Our objective was to describe the development and evaluation of a Web-based research advisory community, hosted on Facebook and connecting a diverse group of parents of special needs children with researchers at CanChild Centre for Childhood Disability Research...
November 11, 2016: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/27834179/-it-s-not-like-a-fat-camp-a-focus-group-study-of-adolescents-experiences-on-group-based-obesity-treatment
#20
Anna Engström, Eirik Abildsnes, Thomas Mildestvedt
BACKGROUND: The health burden related to obesity is rising among children and adolescents along with the general population worldwide. For the individual as well as the society this trend is alarming. Several factors are driving the trend, and the solution seems to be multifaceted because long-lasting treatment alternatives are lacking. This study aims to explore adolescents' and young adults' motivation for attending group-based obesity treatment and social and environmental factors that can facilitate or hinder lifestyle change...
2016: International Journal of Qualitative Studies on Health and Well-being
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