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https://www.readbyqxmd.com/read/28912319/complete-genome-sequence-of-mycobacterium-chimaera-sj42-a-nonoutbreak-strain-from-an-immunocompromised-patient-with-pulmonary-disease
#1
Nabeeh A Hasan, René L Warren, L Elaine Epperson, Allyson Malecha, David C Alexander, Christine Y Turenne, Daniel MacMillan, Inanc Birol, Stephen Pleasance, Robin Coope, Steven J M Jones, Marc G Romney, Monica Ng, Tracy Chan, Mabel Rodrigues, Patrick Tang, Jennifer L Gardy, Michael Strong
Mycobacterium chimaera, a nontuberculous mycobacterium (NTM) belonging to the Mycobacterium avium complex (MAC), is an opportunistic pathogen that can cause respiratory and disseminated disease. We report the complete genome sequence of a strain, SJ42, isolated from an immunocompromised male presenting with MAC pneumonia, assembled from Illumina and Oxford Nanopore data.
September 14, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28910897/-the-application-of-microvascular-anastomotic-coupler-in-vascular-anastomosis-of-free-tissue-flap-for-reconstruction-of-defect-after-head-and-neck-cancer-resection
#2
Y J Zhang, Z H Wang, C H Li, J Chen
Objective: To investigate the application and operation skills in vein anastomosis by microvascular anastomotic coupler (MAC) in reconstruction of defects after head and neck cancer resection. Methods: From August 2015 to July 2016, in Department of Head and Neck Surgery, Sichuan Cancer Hosipital, 17 cases underwent the reconstruction of defects after head and neck cancer resection with free tissue flaps, including forearm flaps in 11 casess, anterolateral flaps in 4 casess and fibula flaps in 2 casess. Totally 17 MAC were used, including 14 MAC for end-to-end anastomosis and 3 MAC for end-to-side anastomosis...
September 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28904638/functional-outcomes-following-non-operative-versus-operative-treatment-of-clavicle-fractures-in-adolescents
#3
M M Herzog, R C Whitesell, L M Mac, M L Jackson, B A Culotta, J R Axelrod, M T Busch, S C Willimon
PURPOSE: Superiority of non-operative versus operative treatment of clavicle shaft fractures remains unclear. We aimed to assess shoulder function in adolescents following shortened clavicle fracture and compare operative versus non-operative treatment. METHODS: Patients aged 12 to 18 years at the time of fracture and minimum 1.5 years post injury were identified for this institutional review board (IRB)-approved study. For this retrospective cohort study, patients were frequency-matched for age, gender, shortening of the clavicle fracture and activity level...
August 1, 2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/28886899/frailty-and-subclinical-coronary-atherosclerosis-the-multicenter-aids-cohort-study-macs
#4
Sai Krishna C Korada, Di Zhao, Martin Tibuakuu, Todd T Brown, Lisa P Jacobson, Eliseo Guallar, Robert K Bolan, Frank J Palella, Joseph B Margolick, Jeremy J Martinson, Matthew J Budoff, Wendy S Post, Erin D Michos
BACKGROUND AND AIMS: Frailty and cardiovascular disease share many risk factors. We evaluated whether frailty is independently associated with subclinical coronary atherosclerosis and whether any relationships differ by HIV-serostatus. METHODS: We studied 976 [62% HIV-infected] male participants of the Multicenter AIDS Cohort Study who underwent assessment of frailty and non-contrast cardiac CT scanning; of these, 747 men also underwent coronary CT angiography (CCTA)...
August 26, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28873200/mac-1-deficiency-induces-respiratory-failure-by-affecting-type-i-alveolar-epithelial-cells
#5
J Wang, Y B Ci, C L Liu, H M Sun
As a β2 integrin family member, Mac-1 plays an important role in the inflammatory response. Inflammation and lung injury are closely associated, but the involvement of Mac-1 in the occurrence and development of such pathologies remains poorly understood. We aimed to investigate the relationship between Mac-1 deficiency and respiratory failure in Mac-1 knockout {Mac-1(-/-)} mice, using C57BL/6J mice as a control. The newborn survival rate of Mac-1(-/-) mice was calculated, and mouse lung tissue was treated with hematoxylin and eosin and subjected to immunofluorescent staining...
August 31, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28855677/no-evidence-for-parental-age-effects-on-offspring-leukocyte-telomere-length-in-free-living-soay-sheep
#6
H Froy, E J Bird, R V Wilbourn, J Fairlie, S L Underwood, E Salvo-Chirnside, J G Pilkington, C Bérénos, J M Pemberton, D H Nussey
In humans, the effect of paternal age at conception (PAC) on offspring leukocyte telomere length (LTL) is well established, with older fathers thought to pass on longer telomeres to their offspring in their sperm. Few studies have looked for PAC effects in other species, but it has been hypothesised that the effect will be exacerbated in polygamous species with higher levels of sperm competition and production. We test for maternal (MAC) and paternal age at conception effects on offspring LTL in Soay sheep, a primitive breed experiencing strong sperm competition...
August 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28843008/sevoflurane-neurotoxicity-in-neonatal-rats-is-related-to-an-increase-in-the-gabaa-r-%C3%AE-1-gabaa-r-%C3%AE-2-ratio
#7
Si-Ning Xie, Hong Ye, Jun-Fa Li, Li-Xin An
Exposure of neonatal rat to sevoflurane leads to neurodegeneration and deficits of spatial learning and memory in adulthood. However, the underlying mechanisms remain unclear. The type A γ-aminobutyric acid receptor (GABAA R) is a target receptor for sevoflurane. The present study intends to investigate the changes in GABAA R α1/α2 expression and its relationship with the neurotoxicity effect due to sevoflurane in neonatal rats. After a dose-response curve was constructed to determine minimum alveolar concentration (MAC) and safety was guaranteed in our 7-day-old neonatal rat pup mode, we conducted two studies among the following groups: (A) the control group; (B) the sham anesthesia group; and (C) the sevoflurane anesthesia group and all three groups were treated in the same way as the model...
August 26, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28830653/recombinant-human-igg1-based-fc-multimers-with-limited-fcr-binding-capacity-can-effectively-inhibit-complement-mediated-disease
#8
Haoping Sun, Henrik S Olsen, Emmanuel Y Mérigeon, Edward So, Erin Burch, Susan Kinsey, John C Papadimitriou, Cinthia B Drachenberg, Søren M Bentzen, David S Block, Scott E Strome, Xiaoyu Zhang
There is a lack of effective targeted therapies for the treatment of complement dependent diseases. We developed two recombinant Fc multimers, G207 and G211, with limited ability to interact with low/moderate affinity FcγRs, but with high avidity for C1q. These drugs effectively inhibited complement dependent cytotoxicity (CDC) in vitro, and prevented the deposition of C1q, C3b and MAC, on the surface of Ab-opsonized cells. Importantly, these inhibitory effects were both C1q dependent and independent. In order to determine the biologic relevance of our findings, we evaluated the clinical efficacy of these drugs in three different animal models, acute RBC hemolysis, anti-Thy-1 nephritis and passive Heymann's nephropathy (PHN), in which disease pathophysiology relies preferentially on complement activation...
August 19, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28818060/rna-transfection-of-%C3%AE-%C3%AE-t-cells-with-a-chimeric-antigen-receptor-or-an-%C3%AE-%C3%AE-t-cell-receptor-a-safer-alternative-to-genetically-engineered-%C3%AE-%C3%AE-t-cells-for-the-immunotherapy-of-melanoma
#9
Dennis C Harrer, Bianca Simon, Shin-Ichiro Fujii, Kanako Shimizu, Ugur Uslu, Gerold Schuler, Kerstin F Gerer, Stefanie Hoyer, Jan Dörrie, Niels Schaft
BACKGROUND: Adoptive T-cell therapy relying on conventional T cells transduced with T-cell receptors (TCRs) or chimeric antigen receptors (CARs) has caused substantial tumor regression in several clinical trials. However, genetically engineered T cells have been associated with serious side-effects due to off-target toxicities and massive cytokine release. To obviate these concerns, we established a protocol adaptable to GMP to expand and transiently transfect γ/δ T cells with mRNA...
August 17, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28813781/bee-venom-decreases-lps-induced-inflammatory-responses-in-bovine-mammary-epithelial-cells
#10
Chang Hee Jeong, Wei Nee Cheng, Hyojin Bae, Kyung Woo Lee, Sang Mi Han, Michael C Petriello, Hong Gu Lee, Han Geuk Seo, Sung Gu Han
The world dairy industry has long been challenged by bovine mastitis, an inflammatory disease, which causes economic loss due to decreased milk production and quality. Attempts have been made to prevent or treat this disease with multiple approaches, primarily through increased abuse of antibiotics, but effective natural solutions remain elusive. Bee venom (BV) contains a variety of peptides (e.g., melittin) and that shows multiple bioactivities including prevention of inflammation. Thus, in the current study, it was hypothesized that BV can reduce inflammation in bovine mammary epithelial cells (MAC-T)...
August 17, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28811008/serum-wisteria-floribunda-agglutinin-positive-mac-2-binding-protein-expression-predicts-disease-severity-in-chronic-hepatitis-c-patients
#11
Ching-I Huang, Chung-Feng Huang, Ming-Lun Yeh, Yi-Hung Lin, Po-Cheng Liang, Meng-Hsuan Hsieh, Chia-Yen Dai, Ming-Yen Hsieh, Zu-Yau Lin, Shinn-Cherng Chen, Jee-Fu Huang, Ming-Lung Yu, Wan-Long Chuang
Wisteria floribunda agglutinin-positive Mac-2 binding protein (WFA(+)-M2BP) has recently been developed as a promising liver fibrosis glyco biomarker. We assessed its efficacy in evaluating liver disease severity in chronic hepatitis C (CHC) in Taiwan. The association between WFA(+)-M2BP and histological features was evaluated among those CHC patients underwent liver biopsy. We also aimed to clarify the factors determining the performance of WFA(+)-M2BP in CHC. A total of 229 CHC patients were consecutively recruited...
August 2017: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/28798145/tnf-induces-neutrophil-adhesion-via-formin-dependent-cytoskeletal-reorganization-and-activation-of-%C3%AE-integrin-function
#12
Angélica Aparecida Antoniellis Silveira, Venina Marcela Dominical, Camila Bononi Almeida, Hanan Chweih, Wilson Alves Ferreira, Cristina Pontes Vicente, Fabio Trindade Maranhão Costa, Claudio C Werneck, Fernando Ferreira Costa, Nicola Conran
Although essential for inflammatory responses, leukocyte recruitment to blood vessel walls in response to inflammatory stimuli, such as TNF-α, can contribute to vascular occlusion in inflammatory diseases, including atherosclerosis. We aimed to further characterize the mechanisms by which TNF stimulates adhesive and morphologic alterations in neutrophils. Microfluidic and intravital assays confirmed the potent effect that TNF has on human and murine neutrophil adhesion and recruitment in vitro and in vivo, respectively...
August 10, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28791980/the-influence-of-maternal-anthropometric-characteristics-on-the-birth-size-of-term-singleton-south-east-nigerian-newborn-infants
#13
C U Onubogu, I Egbuonu, E F Ugochukwu, A S Nwabueze, O Ugochukwu
OBJECTIVE: This study examined the usefulness of maternal anthropometry in predicting the birth size of term singleton newborn infants at NAUTH, Nnewi, Nigeria. MATERIALS AND METHODS: A cross-sectional study was conducted among 301 mother/newborn infant pairs. RESULTS: The mean birth weight was 3.27 ± 0.60 kg whereas the incidence of low birth weight and fetal macrosomia were 8.0% and 11.3%, respectively. The anthropometric indices varied in their ability to detect newborn babies who experienced abnormal intrauterine growth...
July 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28791872/mycobacterium-avium-complex-infection-and-immune-reconstitution-inflammatory-syndrome-remain-a-challenge-in-the-era-of-effective-antiretroviral-therapy
#14
Olivia C Smibert, Jason Trubiano, Gail B Cross, Jennifer Hoy
A 10-year review of disseminated MAC infection and MAC-Immune Reconstitution Inflammatory Syndrome (IRIS) in HIV-positive patients (2004-2014) at a state-wide tertiary referral HIV service, demonstrates that despite advances in antiretroviral therapy, MAC infection remains a therapeutic challenge, particularly intra-abdominal disease.
August 9, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28791758/agent-based-computational-model-of-retinal-angiogenesis-simulates-microvascular-network-morphology-as-a-function-of-pericyte-coverage
#15
Joseph Walpole, Feilim Mac Gabhann, Shayn M Peirce, John C Chappell
OBJECTIVE: Define a role for perivascular cells during developmental retinal angiogenesis in the context of endothelial cell Notch1-DLL4 signaling at the multicellular network level. METHODS: The retinal vasculature is highly sensitive to growth factor mediated intercellular signaling. Although endothelial cell signaling has been explored in detail, it remains unclear how pericytes function to modulate these signals that lead to a diverse set of vascular network patterns in health and disease...
August 8, 2017: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/28781848/successful-difficult-airway-management-of-a-child-with-coffin-siris-syndrome
#16
Ahmet Selim Ozkan, Sedat Akbas, Mehmet Ridvan Yalin, Emine Ozdemir, Zeynep Koylu
Management of airway in patients who have Coffin-Siris syndrome (CSS) is often problematic because most of these patients have difficult airway. NTI via C-MAC VL is an useful alternative to direct laryngoscope for orotracheal intubation in airway and anesthetic management in a case of CSS. Alternative airway devices should be readily available.
August 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28756229/role-of-the-extracellular-matrix-located-mac-2-binding-protein-as-an-interactor-of-the-wnt-proteins
#17
Timo Pikkarainen, Tuomas Nurmi, Takako Sasaki, Ulrich Bergmann, Seppo Vainio
The Wnt proteins constitute a conserved family of secreted palmitoleate-containing signaling proteins that play important roles in development and tissue homeostasis. Their hydrophobic nature has raised the question of how the proteins are transported outside the cells. Accumulating evidence suggests that several different mechanisms, including transport by lipoprotein particles and exosomes, may contribute to this process. Here, we expressed epitope-tagged Wnt4 in HEK293 cells, and identified Mac-2 binding protein (Mac-2BP) as its binding partner in the serum-free conditioned medium...
July 26, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28740393/current-evidence-for-the-use-of-c-mac-videolaryngoscope-in-adult-airway-management-a-review-of-the-literature
#18
REVIEW
Fu-Shan Xue, Hui-Xian Li, Ya-Yang Liu, Gui-Zhen Yang
The C-MAC videolaryngoscope is the first Macintosh-typed videolaryngoscope. Since the advent of its original version video Macintosh system in 1999, this device has been modified several times. A unique feature of C-MAC device is its ability to provide the 2 options of direct and video laryngoscopy with the same device. The available evidence shows that in patients with normal airways, C-MAC videolaryngoscope compared with direct laryngoscopy can provide comparable or better laryngeal views and exerts less force on maxillary incisors, but does not offer conclusive benefits with regard to intubation time, intubation success, number of intubation attempts, the use of adjuncts, and hemodynamic responses to intubation...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28734855/effects-of-constant-rate-infusions-of-dexmedetomidine-or-mk-467-on-the-minimum-alveolar-concentration-of-sevoflurane-in-dogs
#19
Rachel C Hector, Marlis L Rezende, Khursheed R Mama, Eugene P Steffey, Heather K Knych, Ann M Hess, Juhana M Honkavaara, Marja R Raekallio, Outi M Vainio
OBJECTIVE: To determine the effects of low and high dose infusions of dexmedetomidine and a peripheral α2-adrenoceptor antagonist, MK-467, on sevoflurane minimum alveolar concentration (MAC) in dogs. STUDY DESIGN: Crossover experimental study. ANIMALS: Six healthy, adult Beagle dogs weighing 12.6±0.9 kg (mean±standard deviation). METHODS: Dogs were anesthetized with sevoflurane in oxygen. After a 60-minute instrumentation and equilibration period, the MAC of sevoflurane was determined in triplicate using the tail clamp technique...
March 4, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28726693/nitrogen-removal-in-a-shallow-maturation-pond-with-sludge-accumulated-during-10-years-of-operation-in-brazil
#20
V A J Rodrigues, E F A Mac Conell, D F C Dias, M von Sperling, J C de Araújo, J L Vasel
Accumulated sludge in polishing (maturation) ponds reduces the hydraulic retention time (smaller useful volume), and this could potentially lead to a decrease in performance. However, settled biomass, present in the sediments, can contribute to nitrogen removal by different mechanisms such as nitrification and denitrification. This study investigated the influence of the bottom sludge present in a shallow maturation pond treating the effluent from an anaerobic reactor on the nitrification and denitrification processes...
July 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
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