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https://www.readbyqxmd.com/read/27933386/endoscopic-submucosal-dissection-specimens-in-early-colorectal-cancer-lateral-margins-macroscopic-techniques-and-possible-pitfalls
#1
Alicia Dessain, Christophe Snauwaert, Pamela Baldin, Pierre Deprez, Louis Libbrecht, Hubert Piessevaux, Anne Jouret-Mourin
Endoscopic submucosal dissection (ESD) allows en-bloc resection of superficial gastrointestinal tumors, providing specimens on which lateral margin analysis can be performed reliably. Positive lateral margins have been linked to higher rates of recurrence/residual tumor. There are no guidelines for macroscopic processing of lateral margins. Currently, most institutions use parallel lateral sections, which are difficult to interpret. We use perpendicular lateral sections, hypothesizing that it decreases potential artifactually positive lateral margins...
December 8, 2016: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/27933112/osteoblast-and-stem-cell-response-to-nanoscale-topographies-a-review
#2
Nur Izzati Aminuddin, Roslina Ahmad, Sheikh Ali Akbar, Belinda Pingguan-Murphy
To understand how cells respond to the nanoscale extracellular environment in vivo, cells from various sources have been cultured on nanoscale patterns fabricated using bottom-up and top-down techniques. Human fetal osteoblasts (hFOBs) and stem cells are some of them and they are known to be overtly responsive to nanoscale topographies - allowing us to investigate the hows and whys of the response in vitro. Information gathered from these in vitro studies could be used to control the cells, i.e. make the stem cells differentiate or retain their characteristics without the use of medium supplements...
2016: Science and Technology of Advanced Materials
https://www.readbyqxmd.com/read/27933101/study-of-holtermanniella-wattica-leucosporidium-creatinivorum-naganishia-adeliensis-solicoccozyma-aeria-and-solicoccozyma-terricola-for-their-lipogenic-aptitude-from-different-carbon-sources
#3
Sara Filippucci, Giorgia Tasselli, Alessandro Scardua, Simone Di Mauro, Maria Rita Cramarossa, Davide Perini, Benedetta Turchetti, Andrea Onofri, Luca Forti, Pietro Buzzini
BACKGROUND: The ability of some microorganisms to accumulate lipids is well known; however, only recently the number of studies on microbial lipid biosynthesis for obtaining oleochemical products, namely biofuels and some building blocks for chemistry, is rapidly and spectacularly increased. Since 1990s, some oleaginous yeasts were studied for their ability to accumulate lipids up to 60-70% of their dry weight. Due to the vast array of engineering techniques currently available, the recombinant DNA technology was the main approach followed so far for obtaining lipid-overproducing yeasts, mainly belonging to the Yarrowia lipolytica...
2016: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/27932533/preoperative-proteinuria-and-reduced-glomerular-filtration-rate-predicts-renal-replacement-therapy-in-patients-supported-with-continuous-flow-left-ventricular-assist-devices
#4
Veli K Topkara, Ellie J Coromilas, Arthur Reshad Garan, Randall C Li, Francesco Castagna, Douglas L Jennings, Melana Yuzefpolskaya, Koji Takeda, Hiroo Takayama, Robert N Sladen, Donna M Mancini, Yoshifumi Naka, Jai Radhakrishnan, Paolo C Colombo
BACKGROUND: Renal failure requiring renal replacement therapy (RRT) has detrimental effects on quality of life and survival of patients with continuous-flow left ventricular assist devices (CF-LVADs). Current guidelines do not offer a decision-making algorithm for CF-LVAD candidates with poor baseline renal function. Objective of this study was to identify risk factors associated with RRT after CF-LVAD implantation. METHODS AND RESULTS: Three hundred and eighty-nine consecutive patients underwent contemporary CF-LVAD implantation at the Columbia University Medical Center between January 2004 and August 2015...
December 2016: Circulation. Heart Failure
https://www.readbyqxmd.com/read/27932120/prognostic-value-of-pre-transplantation-serum-alpha-fetoprotein-levels-in-hepatocellular-carcinoma-recurrence
#5
E M Montalvá, M Cantos, A Boscà, A Rubín, C Vinaixa, P Granero, J Maupoey, R López-Andújar
Serum alpha-fetoprotein (AFP) value is still not included in the consensus guidelines to make decisions referring to liver transplantation (LT) for hepatocellular carcinoma (HCC). Many studies demonstrated the influence of high AFP level in poor prognosis after LT for HCC. We studied 301 consecutive recipients transplanted for HCC from January 2002 to December 2011. The median follow-up was 64.3 months (interquartile range, 41.6-90.8). HCC recurrence was 31.6% when AFP was >400 ng/mL and 50% when AFP was >1,000 ng/mL...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27932110/effect-of-cytomegalovirus-infection-on-survival-of-older-kidney-transplant-patients-d-r-impact-of-valganciclovir-prophylaxis-versus-preemptive-therapy
#6
E Luna, F Caravaca, F Ferreira, N Fernandez, P Martín, M L Vargas, J Saenz de Santamaría, G Garcia Pino, L Azevedo, A Muñoz Sanz
BACKGROUND: Kidney transplant patients with D+/R+ serology can be treated with either prophylaxis or preemptive valganciclovir. The older transplant population suffers severe immunosenescence, especially patients with latent cytomegalovirus (CMV) infection (R+). They are more likely to develop indirect CMV effects. Likewise, many patients have significant cardiovascular comorbidity, which makes them more sensitive to these indirect effects. The aim of this study was to evaluate the incidence of CMV viremia and indirect effects on survival, comparing prophylaxis (V) against preemptive (P) valganciclovir in an older kidney transplant population...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27932003/mental-health-and-related-influencing-factors-among-the-empty-nest-elderly-and-the-non-empty-nest-elderly-in-taiyuan-china-a-cross-sectional-study
#7
Y-Q Guo, C-C Zhang, H Huang, X Zheng, X-J Pan, J-Z Zheng
OBJECTIVE: In China, elderly make up a large proportion of the society, but their mental health is often overlooked. The aim of this study is to compare mental health and related influencing factors among the empty-nest and the non-empty-nest elderly, and attain the purpose of improving their quality of life. STUDY DESIGN: Cross-sectional survey. METHODS: A cross-sectional survey was conducted among 488 elderly people aged 60-92 years in six districts of Taiyuan, China...
December 2016: Public Health
https://www.readbyqxmd.com/read/27930837/the-view-from-the-back-row
#8
EDITORIAL
Meghan A Campbell
Taking it all in: Exploring the role of editors at conferences will help you understand how to make the most of such an interaction. After wrapping up a successful 2016 conference season, the Editor-in-Chief explains the importance of these visits. Also included, is a summary of Volume 17 and a preview of the coming year.
December 8, 2016: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/27930831/nutrient-limitation-in-tropical-secondary-forests-following-different-management-practices
#9
R Chelsea Nagy, Edward B Rastetter, Christopher Neill, Stephen Porder
Secondary forests now make up more than half of all tropical forests, and constraints on their biomass accumulation will influence the strength of the terrestrial carbon (C) sink in the coming decades. However the variance in secondary tropical forest biomass for a given stand age and climate is high and our understanding of why is limited. We constructed a model of terrestrial C, nitrogen (N), and phosphorus (P) cycling to examine the influence of disturbance and management practices on nutrient limitation and biomass recovery in secondary tropical forests...
December 8, 2016: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/27930827/reasons-for-lack-of-consensus-in-forensic-pathologist-interpretation-of-photographs-of-patterns-of-injury-of-the-skin
#10
William R Oliver
In a previous study, a survey-based analysis of pathologist diagnoses of patterned injury in which participants were asked makes diagnoses from photographs in the absence of history or context. The level of consensus was low. A follow-up survey was created to ask those who responded to the first survey why they answered as they did or why they were unsure of their answers. The most common reason for lack of consensus was that the lesion was nonspecific. Responses invoking ambiguity were more common than those that indicated a confident difference in diagnosis...
December 8, 2016: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/27930764/decision-making-quality-in-parents-considering-adenotonsillectomy-or-tympanostomy-tube-insertion-for-their-children
#11
Paul Hong, Erin Maguire, Mary Purcell, Krista C Ritchie, Jill Chorney
Importance: Shared decision making is a process in which clinicians and patients make health care decisions in a collaborative manner using the most up-to-date evidence, while considering patient values and preferences. Shared decision making is thought to have a positive influence on the decision-making process in medicine. Objective: To describe the level of decisional conflict and decisional regret experienced by parents considering surgery for their children and to determine relations among decisional conflict, decisional regret, and shared decision making...
December 8, 2016: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/27930698/major-depression-as-a-complex-dynamic-system
#12
Angélique O J Cramer, Claudia D van Borkulo, Erik J Giltay, Han L J van der Maas, Kenneth S Kendler, Marten Scheffer, Denny Borsboom
In this paper, we characterize major depression (MD) as a complex dynamic system in which symptoms (e.g., insomnia and fatigue) are directly connected to one another in a network structure. We hypothesize that individuals can be characterized by their own network with unique architecture and resulting dynamics. With respect to architecture, we show that individuals vulnerable to developing MD are those with strong connections between symptoms: e.g., only one night of poor sleep suffices to make a particular person feel tired...
2016: PloS One
https://www.readbyqxmd.com/read/27930565/a-case-report-with-the-peculiar-concomitance-of-2-different-genetic-syndromes
#13
Alberto Lerario, Irene Colombo, Donatella Milani, Lorenzo Peverelli, Luisa Villa, Roberto Del Bo, Monica Sciacco, Giacomo Pietro Comi, Susanna Esposito, Maurizio Moggio
RATIONALE: Down syndrome (DS) is the most common chromosome disorder in live born infants, affecting several body systems, but usually sparing skeletal muscles. We present the case of a child with coexistence of DS and dystrophinopathy. Only 1 similar case has been reported so far. PATIENT CONCERNS: An 8-year-old boy with DS had a history of incidental finding of increased serum creatine kinase levels up to 1775 U/L (normal values 38-174 U/L). He presented no delay in motor development; at the neurological examination, no muscle weakness or fatigability was detected in 2 different evaluations performed over a 6-month period...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27930545/application-of-stereotactic-biopsy-for-diagnosing-intracranial-lesions-in-patients-with-aids-in-china-report-of-7-cases
#14
Ji-Bo Zhang, Kai Fu, Rui Gong, Xue-Meng Liu, Li-Dao Chen, Yong-Xi Zhang, Gui-Fang Yang, Jie Zhang
RATIONALE: The aim of the study was to evaluate stereotactic biopsy for diagnosing intracranial lesions in patients with AIDS. PATIENT CONCERNS: Seven AIDS patients with an intracranial lesion who underwent stereotactic biopsy were included in this retrospective study (4 males and 3 females, 15 to 49 years old). The patients' disease history ranged from 1 month to 1 year. The samples were examined by hematoxylin-eosin (HE) staining and immunohistochemical examination...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27929692/osteoporotic-animal-models-of-bone-healing-advantages-and-pitfalls
#15
Elena Calciolari, Nikolaos Donos, Nikos Mardas
The aim of this review was to summarize the advantages and pitfalls of the available osteoporotic animal models of bone healing. A thorough literature search was performed in MEDLINE via OVID and EMBASE to identify animal studies investigating the effect of experimental osteoporosis on bone healing and bone regeneration. The osteotomy model in the proximal tibia is the most popular osseous defect model to study the bone healing process in osteoporotic-like conditions, although other well-characterized models, such as the post-extraction model, might be taken into consideration by future studies...
December 8, 2016: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/27929507/evaluation-of-digital-radiography-practice-using-exposure-index-tracking
#16
Alexander W Scott, Yifang Zhou, Janet Allahverdian, Jessica L Nute, Christina Lee
Some digital radiography (DR) detectors and software allow for remote download of exam statistics, including image reject status, body part, projection, and exposure index (EI). The ability to have automated data collection from multiple DR units is conducive to a quality control (QC) program monitoring institutional radiographic exposures. We have implemented such a QC program with the goal to identify outliers in machine radiation output and opportunities for improvement in radiation dose levels. We studied the QC records of four digital detectors in greater detail on a monthly basis for one year...
November 8, 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/27929313/maternal-executive-functioning-as-a-mechanism-in-the-intergenerational-transmission-of-parenting-preliminary-evidence
#17
David J Bridgett, Meghan J Kanya, Helena J V Rutherford, Linda C Mayes
Multiple lines of inquiry, including experimental animal models, have recently converged to suggest that executive functioning (EF) may be one mechanism by which parenting behavior is transmitted across generations. In the current investigation, we empirically test this notion by examining relations between maternal EF and parenting behaviors during mother-infant interactions, and by examining the role of maternal EF in the intergenerational transmission of parenting behavior. Mother-infant dyads (N = 150) in a longitudinal study participated...
December 8, 2016: Journal of Family Psychology: JFP
https://www.readbyqxmd.com/read/27929312/decision-making-style-and-response-to-parental-involvement-in-brief-interventions-for-adolescent-substance-use
#18
Timothy F Piehler, Ken C Winters
Adolescent decision making has been previously identified as risk factor for substance abuse as well as a proximal intervention target. The study sought to extend this research by evaluating the role of decision-making style in response to parent involvement in brief substance abuse interventions. Adolescents (aged 12 to 18 years; n = 259) identified in a school setting as abusing alcohol and marijuana were randomly assigned to complete 1 of 2 brief interventions (BIs), either a 2-session adolescent-only program (BI-A) or the 2-session adolescent program with an additional parent session (BI-AP)...
December 8, 2016: Journal of Family Psychology: JFP
https://www.readbyqxmd.com/read/27929115/tracking-the-coherent-generation-of-polaron-pairs-in-conjugated-polymers
#19
Antonietta De Sio, Filippo Troiani, Margherita Maiuri, Julien Réhault, Ephraim Sommer, James Lim, Susana F Huelga, Martin B Plenio, Carlo Andrea Rozzi, Giulio Cerullo, Elisa Molinari, Christoph Lienau
The optical excitation of organic semiconductors not only generates charge-neutral electron-hole pairs (excitons), but also charge-separated polaron pairs with high yield. The microscopic mechanisms underlying this charge separation have been debated for many years. Here we use ultrafast two-dimensional electronic spectroscopy to study the dynamics of polaron pair formation in a prototypical polymer thin film on a sub-20-fs time scale. We observe multi-period peak oscillations persisting for up to about 1 ps as distinct signatures of vibronic quantum coherence at room temperature...
December 8, 2016: Nature Communications
https://www.readbyqxmd.com/read/27928842/evaluating-beneficial-drug-effects-in-a-non-interventional-setting-a-review-of-effectiveness-studies-based-on-swedish-prescribed-drug-register-data
#20
Susanna M Wallerstedt, Mikael Hoffmann
AIMS: To describe and assess current effectiveness studies published up to 2014 using Swedish Prescribed Drug Register (SPDR) data. METHODS: Study characteristics were extracted. Each study was assessed concerning the clinical relevance of the research question, the risk of bias according to a structured checklist, and as to whether its findings contributed to new knowledge. The biases encountered and ways of handling these were retrieved. RESULTS: A total of 24 effectiveness studies were included in the review, the majority on cardiovascular and psychiatric disease (n = 17; 71%)...
December 8, 2016: British Journal of Clinical Pharmacology
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