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https://www.readbyqxmd.com/read/28437235/breast-augmentation-and-reconstruction-from-a-regenerative-medicine-point-of-view-state-of-the-art-and-future-perspectives
#1
Luke Evan Visscher, Matthew Cheng, Mohit Chhaya, Madeline Louise Hintz, Jan-Thorsten Schantz, Phong Tran, Owen Ung, Clement Wong, Dietmar Werner Hutmacher
Breast reconstruction and augmentation are very common procedures, yet the prevailing current methods utilize silicone implants that may have significant local complications requiring reoperation. Lipofillling is increasingly used to contour and is considered safe, however its utility is limited by significant volume loss. A new approach could offer an alternative and increase the scope of patient choice. A small number of teams around the world are investigating a breast tissue-engineering paradigm. Conventional breast tissue engineering concepts are based on seeding a scaffold with the patients' own stem cells...
February 24, 2017: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/28432938/the-role-of-distress-intolerance-in-the-relationship-between-childhood-sexual-abuse-and-problematic-alcohol-use-among-latin-american-msm
#2
Katie Wang, Jaclyn M White Hughto, Katie B Biello, Conall O'Cleirigh, Kenneth H Mayer, Joshua G Rosenberger, David S Novak, Matthew J Mimiaga
BACKGROUND: Despite the high prevalence of childhood sexual abuse (CSA) among men who have sex with men (MSM) and its well-documented association with substance use in adulthood, little research has examined the psychological mechanisms underlying this association. The current study utilized a large, multinational sample of MSM in Latin America to examine the role of distress intolerance (i.e., decreased capacity to withstand negative psychological states) in the relationship between childhood sexual abuse history and problematic alcohol use...
April 6, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28432127/sex-differences-in-hospitalizations-with-maintenance-hemodialysis
#3
Scott V Adams, Matthew Rivara, Elani Streja, Alfred K Cheung, Onyebuchi A Arah, Kamyar Kalantar-Zadeh, Rajnish Mehrotra
Hospitalization is a major source of morbidity among patients with ESRD undergoing maintenance hemodialysis and is a significant contributor to health care costs. To identify subgroups at the highest risk of hospitalization, we analyzed by sex, age, and race, adjusting for demographic and clinical characteristics, the hospitalization rates, and 30-day readmissions for 333,756 hospitalizations among 111,653 patients undergoing maintenance hemodialysis in facilities operated by a large dialysis organization in the United States (2007-2011)...
April 21, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28432124/regulation-of-neurite-morphogenesis-by-interaction-between-r7-regulator-of-g-protein-signaling-complexes-and-g-protein-subunit-g%C3%AE-13
#4
Stephanie L Scherer, Matthew D Cain, Stanley M Kanai, Kevin M Kaltenbronn, Kendall J Blumer
The R7 regulator of G protein signaling family (R7-RGS) critically regulates nervous system development and function. Mice lacking all R7-RGS subtypes exhibit diverse neurological phenotypes, and humans bearing mutations in the retinal R7-RGS isoform RGS9-1 have vision deficits. Although each R7-RGS subtype forms heterotrimeric complexes with Gβ5 and R7-RGS binding protein (R7BP) that regulate G protein-coupled receptor signaling by accelerating deactivation of Gi/o α-subunits, several neurological phenotypes of R7-RGS knockout mice are not readily explained by dysregulated Gi/o signaling...
April 21, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28430564/effects-of-zika-virus-strain-and-aedes-mosquito-species-on-vector-competence
#5
Alexander T Ciota, Sean M Bialosuknia, Steven D Zink, Matthew Brecher, Dylan J Ehrbar, Madeline N Morrissette, Laura D Kramer
In the Western Hemisphere, Zika virus is thought to be transmitted primarily by Aedes aegypti mosquitoes. To determine the extent to which Ae. albopictus mosquitoes from the United States are capable of transmitting Zika virus and the influence of virus dose, virus strain, and mosquito species on vector competence, we evaluated multiple doses of representative Zika virus strains in Ae. aegypti and Ae. albopictus mosquitoes. Virus preparation (fresh vs. frozen) significantly affected virus infectivity in mosquitoes...
July 15, 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28430190/tuning-underwater-adhesion-with-cation-%C3%AF-interactions
#6
Matthew A Gebbie, Wei Wei, Alex M Schrader, Thomas R Cristiani, Howard A Dobbs, Matthew Idso, Bradley F Chmelka, J Herbert Waite, Jacob N Israelachvili
Cation-π interactions drive the self-assembly and cohesion of many biological molecules, including the adhesion proteins of several marine organisms. Although the origin of cation-π bonds in isolated pairs has been extensively studied, the energetics of cation-π-driven self-assembly in molecular films remains uncharted. Here we use nanoscale force measurements in combination with solid-state NMR spectroscopy to show that the cohesive properties of simple aromatic- and lysine-rich peptides rival those of the strong reversible intermolecular cohesion exhibited by adhesion proteins of marine mussel...
May 2017: Nature Chemistry
https://www.readbyqxmd.com/read/28429421/a-boat-shaped-tetracationic-macrocycle-with-a-semiconducting-organic-framework
#7
Minh T Nguyen, Matthew D Krzyaniak, Magdalena Owczarek, Daniel P Ferris, Michael R Wasielewski, J Fraser Stoddart
We report the synthesis of a tetracationic macrocycle which contains two N,N'-bis(methylene)naphthalenediimide units inserted in between the pyridinium rings of the bipyridinium units in cyclobis(paraquat-p-phenylene) (CBPQT(4+) or "blue box") and describe the investigation of its potential use in materials for organic electronics. The incorporation of the two naphthalenediimide (NDI) units into the constitution of CBPQT(4+) , not only changes the supramolecular properties of the tetracation in the solid state, but also has a profound influence on the electrochemical and electronic behavior of the resulting tetracationic macrocycle...
April 21, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28426779/reference-standards-for-lean-mass-measures-using-ge-dual-energy-x-ray-absorptiometry-in-caucasian-adults
#8
Mary T Imboden, Ann M Swartz, Holmes W Finch, Matthew P Harber, Leonard A Kaminsky
OBJECTIVE: To develop reference values by age and sex for LM measures using GE-Healthcare DXA systems. METHODS: A de-identified sample was obtained from Ball State University's Clinical Exercise Physiology Laboratory and University of Wisconsin-Milwaukee's Physical Activity & Health Research Laboratory. DXA scans of 2,076 women and 1,251 men were completed using a GE Lunar Prodigy or iDXA. Percentiles (%ile) were calculated for all variables of interest (LM, LMI, %LM, and ALMI) and a factorial ANOVA was used to assess differences for each variable between 10-year age groups and sex, as well as the interaction between age and sex...
2017: PloS One
https://www.readbyqxmd.com/read/28426646/community-mitigation-guidelines-to-prevent-pandemic-influenza-united-states-2017
#9
Noreen Qualls, Alexandra Levitt, Neha Kanade, Narue Wright-Jegede, Stephanie Dopson, Matthew Biggerstaff, Carrie Reed, Amra Uzicanin
When a novel influenza A virus with pandemic potential emerges, nonpharmaceutical interventions (NPIs) often are the most readily available interventions to help slow transmission of the virus in communities, which is especially important before a pandemic vaccine becomes widely available. NPIs, also known as community mitigation measures, are actions that persons and communities can take to help slow the spread of respiratory virus infections, including seasonal and pandemic influenza viruses.These guidelines replace the 2007 Interim Pre-pandemic Planning Guidance: Community Strategy for Pandemic Influenza Mitigation in the United States - Early, Targeted, Layered Use of Nonpharmaceutical Interventions (https://stacks...
April 21, 2017: MMWR. Recommendations and Reports: Morbidity and Mortality Weekly Report. Recommendations and Reports
https://www.readbyqxmd.com/read/28426365/moderators-of-the-effects-of-alcohol-protective-behavioral-strategies-three-attempts-of-replication-and-extension
#10
Matthew R Pearson, Mark A Prince, Adrian J Bravo
BACKGROUND: Protective behavioral strategies (PBS) can be used to reduce alcohol-related harm when drinking. Despite much research demonstrating that use of protective behavioral strategies (PBS) is associated with decreased alcohol use/problems, few studies have examined moderators of these associations. Moderation tests are important as they define the boundary conditions of the protective effects of PBS use (i.e., identify for whom and in what context PBS use reduces harm). OBJECTIVES: We aimed to replicate and extend the findings from three published studies that have examined putative moderators of PBS-alcohol associations: self-regulation, negative urgency, and drinking refusal self-efficacy...
June 7, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28426305/us-public-opinion-on-carrying-firearms-in-public-places
#11
Julia A Wolfson, Stephen P Teret, Deborah Azrael, Matthew Miller
OBJECTIVES: To estimate US public opinion, overall and by gun ownership status, about the public places where legal gun owners should be allowed to carry firearms. METHODS: We fielded an online survey among 3949 adults, including an oversample of gun owners and veterans, in April 2015. We used cross-tabulations with survey weights to generate nationally representative estimates. RESULTS: Fewer than 1 in 3 US adults supported gun carrying in any of the specified venues...
April 20, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28426203/tyrosine-kinase-activation-and-conformational-flexibility-lessons-from-src-family-tyrosine-kinases
#12
Yilin Meng, Matthew P Pond, Benoît Roux
Protein kinases are enzymes that catalyze the covalent transfer of the γ-phosphate of an adenosine triphosphate (ATP) molecule onto a tyrosine, serine, threonine, or histidine residue in the substrate and thus send a chemical signal to networks of downstream proteins. They are important cellular signaling enzymes that regulate cell growth, proliferation, metabolism, differentiation, and migration. Unregulated protein kinase activity is often associated with a wide range of diseases, therefore making protein kinases major therapeutic targets...
April 20, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28425563/differences-in-interregional-brain-connectivity-in-children-with-unilateral-hearing-loss
#13
Matthew E Jung, Miranda Colletta, Rebecca Coalson, Bradley L Schlaggar, Judith E C Lieu
OBJECTIVES: To identify functional network architecture differences in the brains of children with unilateral hearing loss (UHL) using resting-state functional-connectivity magnetic resonance imaging (rs-fcMRI). STUDY DESIGN: Prospective observational study. METHODS: Children (7 to 17 years of age) with severe to profound hearing loss in one ear, along with their normal hearing (NH) siblings, were recruited and imaged using rs-fcMRI. Eleven children had right UHL; nine had left UHL; and 13 had normal hearing...
April 20, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28424776/socially-responsible-surgery-building-recognition-and-coalition
#14
Tyler D Robinson, Thiago M Oliveira, Theresa R Timmes, Jacqueline M Mills, Nichole Starr, Matthew Fleming, Megan Janeway, Diane Haddad, Feroze Sidhwa, Ryan D Macht, Douglas F Kauffman, Tracey A Dechert
IMPORTANCE: Socially responsible surgery (SRS) integrates surgery and public health, providing a framework for research, advocacy, education, and clinical practice to address the social barriers of health that decrease surgical access and worsen surgical outcomes in underserved patient populations. These patients face disparities in both health and in health care, which can be effectively addressed by surgeons in collaboration with allied health professionals. OBJECTIVE: We reviewed the current state of surgical access and outcomes of underserved populations in American rural communities, American urban communities, and in low- and middle-income countries...
2017: Frontiers in Surgery
https://www.readbyqxmd.com/read/28424758/redox-related-epigenetic-mechanisms-in-glioblastoma-nuclear-factor-erythroid-derived-2-like-2-cobalamin-and-dopamine-receptor-subtype-4
#15
Matthew Scott Schrier, Malav Suchin Trivedi, Richard Carlton Deth
Glioblastoma is an exceptionally difficult cancer to treat. Cancer is universally marked by epigenetic changes, which play key roles in sustaining a malignant phenotype, in addition to disease progression and patient survival. Studies have shown strong links between the cellular redox state and epigenetics. Nuclear factor (erythroid-derived 2)-like 2 (Nrf2) is a redox-sensitive transcription factor that upregulates endogenous antioxidant production, and is aberrantly expressed in many cancers, including glioblastoma...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28424591/bcl11b-a-critical-neurodevelopmental-transcription-factor-roles-in-health-and-disease
#16
REVIEW
Matthew J Lennon, Simon P Jones, Michael D Lovelace, Gilles J Guillemin, Bruce J Brew
B cell leukemia 11b (Bcl11b) is a zinc finger protein transcription factor with a multiplicity of functions. It works as both a genetic suppressor and activator, acting directly, attaching to promoter regions, as well as indirectly, attaching to promoter-bound transcription factors. Bcl11b is a fundamental transcription factor in fetal development, with important roles for the differentiation and development of various neuronal subtypes in the central nervous system (CNS). It has been used as a specific marker of layer V subcerebral projection neurons as well as striatal interneurons...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28423312/hgfa-is-an-injury-regulated-systemic-factor-that-induces-the-transition-of-stem-cells-into-galert
#17
Joseph T Rodgers, Matthew D Schroeder, Chanthia Ma, Thomas A Rando
The activation of quiescent stem cells into the cell cycle is a key step in initiating the process of tissue repair. We recently reported that quiescent stem cells can transition into GAlert, a cellular state in which they have an increased functional ability to activate and participate in tissue repair. However, the precise molecular signals that induce GAlert in stem cells have remained elusive. Here, we show that the injury-induced regulation of hepatocyte growth factor (HGF) proteolytic processing via the systemic protease, hepatocyte growth factor activator (HGFA), stimulates GAlert in skeletal muscle stem cells (MuSCs) and fibro-adipogenic progenitors (FAPs)...
April 18, 2017: Cell Reports
https://www.readbyqxmd.com/read/28422579/is-the-higher-number-of-suicide-attempts-in-bipolar-disorder-vs-major-depressive-disorder-attributable-to-illness-severity
#18
Matthew S Michaels, Tia Balthrop, Alejandro Pulido, M David Rudd, Thomas E Joiner
Objectives The present study represents an early-stage investigation into the phenomenon whereby those with bipolar disorder attempt suicide more frequently than those with unipolar depression, but do not tend to attempt suicide during mania. Methods Data for this study were obtained from baseline measurements collected in a randomized treatment study at a major southwestern United States military medical center. Results We demonstrated the rarity of suicide attempts during mania, the higher frequency of suicide attempts in those with bipolar disorder compared to those with depression, and the persistence of effects after accounting for severity of illness...
April 19, 2017: Archives of Suicide Research: Official Journal of the International Academy for Suicide Research
https://www.readbyqxmd.com/read/28422394/homozygous-variant-in-c21orf2-in-a-case-of-jeune-syndrome-with-severe-thoracic-involvement-extending-the-phenotypic-spectrum
#19
Aideen M McInerney-Leo, Lawrie Wheeler, Mhairi S Marshall, Lisa K Anderson, Andreas Zankl, Matthew A Brown, Paul J Leo, Carol Wicking, Emma L Duncan
We previously reported exome sequencing in a short-rib thoracic dystrophy (SRTD) cohort, in whom recessive mutations were identified in SRTD-associated genes in 10 of 11 cases. A heterozygous stop mutation in the known SRTD gene WDR60 was identified in the remaining case; no novel candidate gene/s were suggested by homozygous/compound heterozygous analysis. This case was thus considered unsolved. Re-analysis following an analysis pipeline update identified a homozygous mutation in C21orf2 (c.218G > C; p...
April 19, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28419851/an-emergent-functional-parcellation-of-the-temporal-cortex
#20
REVIEW
Rebecca L Jackson, Claude J Bajada, Grace E Rice, Lauren L Cloutman, Matthew A Lambon Ralph
The temporal lobe has been associated with various cognitive functions which include memory, auditory cognition and semantics. However, at a higher level of conceptualisation, all of the functions associated with the temporal lobe can be considered as lying along one major axis; from modality-specific to modality-general processing. This paper used a spectral reordering technique on resting-state and task-based functional data to extract the major organisational axis of the temporal lobe in a bottom-up, data-driven fashion...
April 15, 2017: NeuroImage
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