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https://www.readbyqxmd.com/read/28919350/crystal-structure-of-inositol-1-3-4-5-6-pentakisphosphate-2-kinase-from-cryptococcus-neoformans
#1
Juntaek Oh, Dong-Gi Lee, Yong-Sun Bahn, Sangkee Rhee
The fungal pathogen Cryptococcus neoformans is a causative agent of meningoencephalitis in humans. For its pathogenicity, the inositol polyphosphate biosynthetic pathway plays critical roles. Recently, Ipk1 from C. neoformans (CnIpk1) was identified as an inositol 1,3,4,5,6-pentakisphosphate 2-kinase that catalyzes the phosphorylation of IP5 to form IP6, a substrate for subsequent reaction to produce inositol pyrophosphates, such as PP-IP5/IP7. Furthermore, it was shown that deletion of IPK1 significantly reduces the virulence of C...
September 15, 2017: Journal of Structural Biology
https://www.readbyqxmd.com/read/28919168/contribution-of-interaction-torques-during-dart-throwing-differences-between-novices-and-experts
#2
Nasser Rezzoug, Clint Hansen, Philippe Gorce, Brice Isableu
We examined if experts and novices show different utilization of the torque components impulses during dart throwing. Participants threw darts continuously at a dartboard aiming for the centre (target bull's eye). The upper-limb joint torque impulses were obtained through inverse dynamics with anthropometric and motion capture data as input. Depending on the joint degree of freedom (DOF) and movement phase (acceleration and follow-through), three main strategies of net torque (NET) impulse generation through joint muscle (MUS) and interaction (INT) torque impulses were highlighted...
September 14, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28917585/total-urogenital-sinus-mobilization-for-ambiguous-genitalia
#3
Vinicius Menezes Jesus, Francisco Buriti, Rodrigo Lessa, Maria Betânia Toralles, Luciana Barros Oliveira, Ubirajara Barroso
INTRODUCTION: Genital ambiguity is a very common phenomenon in disorders of sex development (DSD). According to the Chicago Consensus 2006, feminizing genitoplasty, when indicated, should be performed in the most virilized cases (Prader III to V). Advances in the knowledge of genital anatomy in DSD have enabled the development and improvement of various surgical techniques. Mobilization of the urogenital sinus (MUS), first described by Peña, has become incorporated by most surgeons. However, the proximity of the urethral sphincter prompts concern over urinary incontinence, especially for full mobilization of the urogenital sinus...
August 24, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28916503/altered-serotonergic-and-gabaergic-neurotransmission-in-a-mice-model-of-obsessive-compulsive-disorder
#4
Christine Winter, Dana M Greene, Paraskevi Mavrogiorgou, Helge Schaper, Reinhard Sohr, Abel Bult-Ito, Georg Juckel
There is ample evidence that obsessive-compulsive disorder (OCD) is based on reduced serotonergic function. Replicated bidirectional selection for thermoregulatory nest-building behavior in the laboratory house mouse (Mus musculus) resulted in compulsive-like, non-compulsive-like and randomly bred control mice that represent a non-induced animal model of OCD. The present study aimed at investigating the neurochemical patterns in specific brain regions of compulsive-like (HA) versus non-compulsive-like (LA) and normal (CA) mice...
September 12, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28916335/troxerutin-abrogates-mitochondrial-oxidative-stress-and-myocardial-apoptosis-in-mice-fed-calorie-rich-diet
#5
Rajagopalan Geetha, Chandrasekaran Sathiya Priya, Carani Venkatraman Anuradha
Mitochondrial oxidative stress plays a major role in the pathogenesis of myocardial apoptosis in metabolic syndrome (MS) patients. In this study, we investigated the effect of troxerutin (TX), an antioxidant on mitochondrial oxidative stress and apoptotic markers in heart of mice fed fat and fructose-rich diet. Adult male Mus musculus mice were fed either control diet or high fat, high fructose diet (HFFD) for 60 days to induce MS. Mice from each dietary group were divided into two on the 16th day and were either treated or untreated with TX (150 mg/kg bw, p...
September 12, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28912093/lentiviral-gene-delivery-to-plasmolipin-expressing-cells-using-mus-caroli-endogenous-retrovirus-envelope-protein
#6
REVIEW
M M Prokofjeva, G M Proshkina, T D Lebedev, A A Shulgin, P V Spirin, V S Prassolov, S M Deyev
Gene therapy is a promising method for treating malignant diseases. One of the main problems is target delivery of therapeutic genes. Here we show that lentiviral vector particles pseudotyped with Mus caroli endogenous retrovirus (McERV) envelope protein can be used for selective transduction of PLLP-expressing cells. As a therapeutic gene in McERV-pseudotyped vector particles we used miniSOG encoding the cytotoxic FMN-binding protein, which can generate reactive oxygen species under illumination. Significant cytotoxic effect (up to 80% of dead cells in population) was observed in PLLP-expressing cells transduced with McERV-pseudotyped vector particles and subjected to illumination...
September 11, 2017: Biochimie
https://www.readbyqxmd.com/read/28905713/interspecies-variation-in-the-susceptibility-of-a-wild-derived-colony-of-mice-to-pinworms-aspiculuris-tetraptera
#7
Ryan C Curtis, Jill K Murray, Polly Campbell, Yoko Nagamori, Adam Molnar, Todd A Jackson
Pinworms are common parasites in wild and laboratory rodents. Despite their relative nonpathogenicity in immunocompetent models, pinworm infections add an unwanted variable and may confound some types of research. For this reason, health monitoring programs and biosecurity measures aim to minimize the spread of pinworm infections into colonies free from the organisms. Wild-derived and laboratory strains of mice have shown varied susceptibility to infection with Aspiculuris tetraptera, the most commonly found murine pinworm...
January 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28903829/quantification-of-induced-hypothermia-from-aseptic-scrub-applications-during-rodent-surgery-preparation
#8
Anna M Skorupski, Jingyi Zhang, Danielle Ferguson, Frank Lawrence, F Claire Hankenson
Laboratory mice (Mus musculus) are prone to develop hypothermia during anesthesia for surgery, thus potentially impeding anesthetic recovery, wound healing, and future health. The core body temperatures of isoflurane-anesthetized mice are influenced by the choice of supplemental heat sources; however, the contribution of various surgical scrubs on the body temperatures of mice under gas anesthesia has not been assessed. We sought to quantify the effect of using alcohol (70% isopropyl alcohol [IPA]) compared with saline to rinse away surgical scrub on the progression of hypothermia in anesthetized mice (n = 47)...
September 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28899390/-if-it-s-a-medical-issue-i-would-have-covered-it-by-now-learning-about-fibromyalgia-through-the-hidden-curriculum-a-qualitative-study
#9
V Silverwood, C A Chew-Graham, I Raybould, B Thomas, S Peters
BACKGROUND: Fibromyalgia syndrome (FMS) is a long-term condition that affects between 1 and 5% of the general population and lies within the spectrum of medically unexplained symptoms (MUS). FMS can be difficult to diagnose and is usually done so as a diagnosis of exclusion. There is continuing debate regarding its legitimacy excluding other causes of symptoms. It is known that the diagnosis and management of MUS, including FMS, receives little attention in medical curricula and attitudes towards patients with FMS amongst medical professionals and trainees can be negative...
September 12, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/28899359/transcript-profiling-of-the-immunological-interactions-between-actinobacillus-pleuropneumoniae-serotype-7-and-the-host-by-dual-rna-seq
#10
Ping Li, Zhiwen Xu, Xiangang Sun, Yue Yin, Yi Fan, Jun Zhao, Xiyu Mao, Jianbo Huang, Fan Yang, Ling Zhu
BACKGROUND: The complexity of the pathogenic mechanism underlying the host immune response to Actinobacillus pleuropneumonia (App) makes the use of preventive measures difficult, and a more global view of the host-pathogen interactions and new insights into this process are urgently needed to reveal the pathogenic and immune mechanisms underlying App infection. Here, we infected specific pathogen-free Mus musculus with App serotype 7 by intranasal inoculation to construct an acute hemorrhagic pneumonia infection model and isolated the infected lungs for analysis of the interactions by dual RNA-seq...
September 12, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28886325/nullification-of-aspirin-induced-gastrotoxicity-and-hepatotoxicity-by-prior-administration-of-wheat-germ-oil-in-mus-musculus-histopathological-ultrastructural-and-molecular-studies
#11
H R H Mohamed, S R Hamad
Aspirin (salicylic acetyl acid) is used worldwide to treat various inflammatory conditions and prevent cardiovascular disease, along with reducing the risk of cancer. However, administration of aspirin causes toxic effects, especially in the stomach and liver. Thus, our study examined the protective effect of wheat germ oil on aspirin-induced toxicity in the stomach and liver tissues of albino white mice. Administration of wheat germ oil before aspirin has restored normal hepatic and gastric tissue architecture and DNA integrity has become better than that of a negative health control group compared with the aspirin only treated group...
August 30, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28884835/non-invasive-electromyographic-estimation-of-motor-unit-number-in-the-external-anal-sphincter-of-the-rat
#12
Chuan Zhang, Alvaro Munoz, H Henry Lai, Timothy Boone, Yingchun Zhang
AIMS: The external anal sphincter (EAS) is essential for maintaining fecal continence. Neurological disorders or traumatic injuries to muscle and nervous systems could lead to EAS denervation. Currently, there are no techniques available to document global innervation changes in the EAS in vivo. The aim of this study was to develop a novel approach to non-invasively estimate the number of functioning motor units (MUs) in the EAS and validate with immunofluorescent techniques in rats. METHODS: Intra-rectal surface electromyography (EMG) signals of the EAS, induced by a series of intra-vaginally delivered pudendal nerve stimulations with different intensities, were recorded...
September 8, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28882652/measuring-olfactory-processes-in-mus-musculus
#13
REVIEW
Heather Schellinck
This paper briefly reviews the literature that describes olfactory acuity and odor discrimination learning. The results of current studies that examined the role of neurotransmitters in odor discrimination learning are discussed as are those that investigated pattern recognition and models of human disease. The methodology associated with such work is also described and its role in creating disparate results assessed. Recommendations for increasing the reliability and validity of experiments so as to further our understanding of olfactory processes in both healthy mice and those modelling human disease are made throughout the paper...
September 4, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28882225/animal-models-to-study-microrna-function
#14
Arpita S Pal, Andrea L Kasinski
The discovery of the microRNAs, lin-4 and let-7 as critical mediators of normal development in Caenorhabditis elegans and their conservation throughout evolution has spearheaded research toward identifying novel roles of microRNAs in other cellular processes. To accurately elucidate these fundamental functions, especially in the context of an intact organism, various microRNA transgenic models have been generated and evaluated. Transgenic C. elegans (worms), Drosophila melanogaster (flies), Danio rerio (zebrafish), and Mus musculus (mouse) have contributed immensely toward uncovering the roles of multiple microRNAs in cellular processes such as proliferation, differentiation, and apoptosis, pathways that are severely altered in human diseases such as cancer...
2017: Advances in Cancer Research
https://www.readbyqxmd.com/read/28877550/organization-of-the-motor-unit-pool-for-different-directions-of-isometric-contraction-of-the-first-dorsal-interosseous-muscle
#15
Yuming Lei, Nina L Suresh, William Z Rymer, Xiaogang Hu
INTRODUCTION: Muscle force generation involves recruitment and firing rate modulation of motor units (MUs). The control of MUs to produce multi-directional forces remains unclear. METHODS: We studied MU recruitment and firing properties, recorded from the first dorsal interosseous muscle, for three different directions of contraction: abduction, abduction/flexion combination and flexion. RESULTS: MUs were recruited systematically at higher threshold force during flexion...
September 6, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28876225/self-assembled-monolayers-of-sulfonate-terminated-alkanethiols-investigated-by-frequency-modulation-atomic-force-microscopy-in-liquid
#16
Hitoshi Asakawa, Natsumi Inada, Kaito Hirata, Sayaka Matsui, Takumi Igarashi, Norihisa Oku, Norinobu Yoshikawa, Takeshi Fukuma
A molecular-scale understanding of self-assembled monolayers (SAMs) of sulfonate-terminated alkanethiols is crucial for interfacial studies of functionalized SAMs and their various applications. However, such an understanding has been difficult to achieve because of the lack of direct information on these molecular-scale structures in real space. In this study, we investigated the structures of sulfonate SAMs of sodium 11-mercapto-1-undecanesulfonate (MUS) by frequency modulation atomic force microscopy (FM-AFM) in liquid...
September 6, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28873024/serological-survey-of-zoonotic-viruses-in-invasive-and-native-commensal-rodents-in-senegal-west-africa
#17
Christophe A Diagne, Nathalie Charbonnel, Heikki Henttonen, Tarja Sironen, Carine Brouat
Increasing studies on rodent-borne diseases still highlight the major role of rodents as reservoirs of numerous zoonoses of which the frequency is likely to increase worldwide as a result of accelerated anthropogenic changes, including biological invasions. Such a situation makes pathogen detection in rodent populations important, especially in the context of developing countries characterized by high infectious disease burden. Here, we used indirect fluorescent antibody tests to describe the circulation of potentially zoonotic viruses in both invasive (Mus musculus domesticus and Rattus rattus) and native (Mastomys erythroleucus and Mastomys natalensis) murine rodent populations in Senegal (West Africa)...
September 5, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28871439/one-normal-void-and-residual-following-mus-surgery-is-all-that-is-necessary-in-most-patients
#18
Paul Ballard, Sami Shawer, Colette Anderson, Aethele Khunda
INTRODUCTION AND HYPOTHESIS: There is considerable variation worldwide on how the assessment of voiding function is performed following midurethral sling (MUS) surgery. There is potentially a financial cost, and reduction in efficiency when patient discharge is delayed. Using our current practice of two normal void and residual (V&R) readings before discharge, the aim of this retrospective study was to evaluate the likelihood of an abnormal second V&R test if the first V&R test was normal in order to determine if a policy of discharge after only one satisfactory V&R test is reasonable...
September 4, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28867416/negative-affect-as-mediator-between-emotion-regulation-and-medically-unexplained-symptoms
#19
Jeanine Schwarz, Winfried Rief, Anna Radkovsky, Matthias Berking, Maria Kleinstäuber
BACKGROUND: Research on emotion regulation (ER) in medically unexplained physical symptoms (MUS) is rare. PURPOSE: The goal of this study was to compare ER skills between MUS-patients without comorbid depression, MUS-patients with comorbid depression (MUS+MDD), patients with major depressive disorder (MDD), and healthy controls. Additionally, we examined the mediating effect of depression and anxiety on the relationship between ER and somatization. METHODS: The Emotion-Regulation Skills Questionnaire (ERSQ) and other self-report measures were completed by 138 MUS-patients, 114 MUS+MDD-patients, 106 MDD-patients, and 100 healthy controls...
August 10, 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28858407/neural-correlates-of-food-anticipatory-activity-in-mice-subjected-to-once-or-twice-daily-feeding-periods
#20
Ashutosh Rastogi, Eric M Mintz
In rodents, restricted food access to a limited period each day at a predictable time results in the appearance of food anticipatory activity (FAA). Two shorter periods of food access each day can result in two FAA bouts. In this study, we examine FAA under 12:12 and 18:6 photoperiods in mice (Mus musculus) with one or two food access periods per day, and measure the activation of the suprachiasmatic, dorsomedial, and arcuate nuclei by assaying Fos protein expression, while making use of tissue-type plasminogen activator knockout mice to assess the role of neural plasticity in adaptation to restricted feeding cycles...
August 31, 2017: European Journal of Neuroscience
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