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https://www.readbyqxmd.com/read/28651229/coverage-of-complex-defects-of-the-shoulder-girdle-and-posterior-neck-triangle-following-tumor-resection
#1
Noha M Al-Qattan, Mohammad M Al-Qattan, Rajeev Pant
INTRODUCTION: Numerous pedicle and free flaps have been used to cover complex defects of the shoulder girdle and posterior neck triangle following tumor resection. We describe our choice of flap selection in these patients with case examples. PRESENTATION OF CASES: Three cases examples demonstrate our choice of flap selection. In the first case, an anterior shoulder girdle defect is covered by an anteriorly transposed latissimus dorsi muscle flap. The second case demonstrates the coverage of a posterior shoulder girdle defect by a posteriorly transposed latissimus dorsi muscle flap...
June 13, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28651228/ante-situm-liver-resection-with-inferior-vena-cava-replacement-under-hypothermic-cardiopolmunary-bypass-for-hepatoblastoma-report-of-a-case-and-review-of-the-literature
#2
Roberta Angelico, Annalisa Passariello, Michele Pilato, Tommaso Cozzolino, Marcello Piazza, Roberto Miraglia, Paolo D'Angelo, Mariella Capasso, Maria Cristina Saffioti, Daniele Alberti, Marco Spada
INTRODUCTION: Hepatoblastoma with tumour thrombi extending into inferior-vena-cava and right atrium are often unresectable with an extremely poor prognosis. The surgical approach is technically challenging and might require major liver resection with vascular reconstruction and extracorporeal circulation. However, which is the best surgical technique is yet unclear. PRESENTATION OF CASE: A 11-months-old boy was referred for a right hepatic lobe mass(90×78mm) suspicious of hepatoblastoma with tumoral thrombi extending into the inferior-vena-cava and the right atrium, bilateral lung lesions and serum alpha-fetoprotein level of 50...
June 13, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28651066/thalassemia-major-transfusion-and-chelation-or-transplantation
#3
REVIEW
Said Yousuf Mohamed
Thalassemia is the most common monogenic hematologic disease that affects millions in the world and kills thousands of patients every year. Without transfusion or transplantation, patients with thalassemia major are expected to die within months of diagnosis. However, long-term transfusion and chelation therapy is highly challenging for many developing countries where the disease is prevalent, representing a major and unsustainable health burden. Stem cell transplantation is the only cure for thalassemia. It has witnessed major developments that have made it less toxic, more successful, and feasible for a larger number of patients with diverse comorbidities and from a wider range of donors...
June 20, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28651044/the-atmospheric-fate-of-monoethanolamine-enhancing-new-particle-formation-of-sulfuric-acid-as-an-important-removal-process
#4
Hong-Bin Xie, Jonas Elm, Roope Halonen, Nanna Myllys, Theo Kurtén, Markku Kulmala, Hanna Vehkamaki
Monoethanolamine (MEA), a potential atmospheric pollutant from capture unit of a leading CO2 capture technology, could be removed by participating H2SO4-based new particle formation (NPF) as simple amines. Here we evaluated the enhancing potential of MEA on H2SO4-based NPF by examining the formation of molecular clusters of MEA and H2SO4 using a combined quantum chemistry calculations and kinetics modeling. The results indicate that MEA at ppt-level can enhance H2SO4-based NPF. The enhancing potential of MEA is < dimethylamine (DMA), one of the strongest enhancing agents, and ≫ methylamine (MA), in contrast to the order suggested solely by their basicity (MEA < MA < DMA)...
June 26, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28651021/natural-immune-response-to-plasmodium-vivax-alpha-helical-coiled-coil-protein-motifs-and-its-association-with-the-risk-of-p-vivax-malaria
#5
Nora Céspedes, Connie S N Li Wai Suen, Cristian Koepfli, Camila T França, Ingrid Felger, Issa Nebie, Myriam Arévalo-Herrera, Ivo Mueller, Giampietro Corradin, Sócrates Herrera
Protein α-helical coiled coil structures are known to induce antibodies able to block critical functions in different pathogens. In a previous study, a total of 50 proteins of Plasmodium vivax erythrocytic asexual stages containing α-helical coiled coil structural motifs were identified in silico, and the corresponding peptides were chemically synthesized. A total of 43 peptides were recognized by naturally acquired antibodies in plasma samples from both Papua New Guinea (PNG) and Colombian adult donors. In this study, the association between IgG antibodies to these peptides and clinical immunity was further explored by measuring total IgG antibody levels to 24 peptides in baseline samples from a longitudinal study of children aged 1-3 years (n = 164) followed for 16 months...
2017: PloS One
https://www.readbyqxmd.com/read/28650958/dynamics-and-impact-of-homologous-recombination-on-the-evolution-of-legionella-pneumophila
#6
Sophia David, Leonor Sánchez-Busó, Simon R Harris, Pekka Marttinen, Christophe Rusniok, Carmen Buchrieser, Timothy G Harrison, Julian Parkhill
Legionella pneumophila is an environmental bacterium and the causative agent of Legionnaires' disease. Previous genomic studies have shown that recombination accounts for a high proportion (>96%) of diversity within several major disease-associated sequence types (STs) of L. pneumophila. This suggests that recombination represents a potentially important force shaping adaptation and virulence. Despite this, little is known about the biological effects of recombination in L. pneumophila, particularly with regards to homologous recombination (whereby genes are replaced with alternative allelic variants)...
June 26, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28650717/heart-type-fatty-acid-binding-protein-is-a-sensitive-biomarker-for-early-ami-detection-in-troponin-negative-patients-a-pilot-study
#7
Luisa Agnello, Giulia Bivona, Giuseppina Novo, Concetta Scazzone, Roberto Muratore, Piero Levantino, Chiara Bellia, Bruna Lo Sasso, Marcello Ciaccio
BACKGROUND: Early detecting AMI in individuals presenting to the ED with chest pain continues to be a challenge. cTn is the gold standard for AMI diagnosis but early presenters (<1 hours from symptom onset) maybe cTn negative on admission. We analysed the diagnostic value of h-FABP and hs-TnI in patients presenting to ED with chest pain and no cTnI elevations. METHODS: 28 AMI and 28 no-AMI individuals both presented to ED within one hour from pain onset were included...
June 26, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28650694/investigation-of-the-developmental-potential-and-developmental-kinetics-of-bovine-parthenogenetic-and-somatic-cell-nuclear-transfer-embryos-using-a-time-lapse-monitoring-system
#8
Min-Jee Park, Eun-Young Kim, Man-Jong Kang, Jun-Beom Lee, Chang-Jin Jeong, Se-Pill Park
A time-lapse monitoring system has predictive value for selecting good-quality embryos with the highest implantation potential. Using this new tool, we investigated the developmental potential and developmental kinetics of bovine parthenogenetic (PA) and two types of somatic cell nuclear transfer (NT) embryos. Bovine non-transgenic ear cells (bECs) or transgenic cells (bTGCs) were used as donor cells. The cleavage and blastocyst development rates did not significantly differ among the PA, NT-bEC, and NT-bTGC groups, and first cleavage occurred an average of 19...
June 26, 2017: Cellular Reprogramming
https://www.readbyqxmd.com/read/28650637/a-dft-tddft-study-on-the-sensing-mechanism-of-a-fluorescent-probe-for-hydrogen-sulfide-excited-state-intramolecular-proton-transfer-coupled-twisted-intramolecular-charge-transfer
#9
Yang Li, Tian-Shu Chu
By using density functional theory (DFT) and time-dependent density functional theory (TDDFT) methods, the sensing mechanism of a fluorescent probe 2-(2-hydroxyphenyl) benzothiazole (HBT) derivative HBTPP-S for hydrogen sulfide has been thoroughly studied. The thiolysis reaction has a moderate reaction barrier of 18.40 kcal mol-1, which indicates that the hydrogen sulfide sensing process has a favorable response speed. Due to the non-radiative donor-excited photoinduced electron transfer (d-PET, fluorophore as the electron donor) from the excited HBTPP group to the electron-withdrawing 2,4-dinitrophenyl group, as well as the inhibition of the proton transfer (PT) and the excited state intramolecular proton transfer (ESIPT) process by 2,4-dinitrophenyl group, the probe HBTPP-S is essentially non-fluorescent...
June 26, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28650593/hhv-6-in-liver-transplantation-a-literature-review
#10
REVIEW
Tuan L Phan, Irmeli Lautenschlager, Raymund R Razonable, Flor M Munoz
Human herpesvirus 6 (HHV-6A and HHV-6B) can cause primary infection or reactivate from latency in liver transplant recipients, which can result in a variety of clinical syndromes, including fever, hepatitis, encephalitis, and higher rates of graft dysfunction as well as indirect effects including increased risks of mortality, CMV disease, hepatitis C progression and greater fibrosis scores. Although HHV-6 infection is currently diagnosed by quantifying viral DNA in plasma or blood, biopsy to demonstrate histopathologic effects of HHV-6 remains the gold standard for diagnosis of end-organ disease...
June 26, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28650584/matched-molecular-pair-analysis-on-large-melting-point-datasets-a-big-data-perspective
#11
Michael Withnall, Hongming Chen, Igor V Tetko
A matched molecular pair (MMP) analysis was used to examine the change in melting point (MP) between pairs of similar molecules in a set of ca. 275k compounds. We found many cases where the change of MP (ΔMP) of compounds correlates with respect to changes in functional groups. In line with a previous study of Schultes et al, correlations between ΔMP and simple molecular descriptors, such as the number of hydrogen bond donors were identified. In using a larger dataset, covering a wider chemical space and range of melting points, we observed that this method remains stable and scales well with larger datasets: This MMP based method presents the opportunity for its use as a simple privacy-preserving technique to analyse large proprietary databases and share findings between participating groups...
June 26, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28650509/a-co-expression-strategy-to-achieve-labeling-of-individual-subunits-within-a-dimeric-protein-for-single-molecule-analysis
#12
Fei Lou, Jie Yang, Si Wu, Sarah Perrett
A generic co-expression strategy for site-specific incorporation of a single donor-acceptor dye pair into any position in a dimeric protein, allowing single molecule FRET study of proteins previously inaccessible to this technique, such as the intrinsically disordered prion N-domain of Ure2 in the context of its globular dimeric C-domain.
June 26, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28650498/two-step-fret-mediated-metal-ion-induced-signalling-responses-in-a-probe-appended-with-three-fluorophores
#13
Biswonath Biswal, Ajoy Pal, Bamaprasad Bag
A tri-fluorophoric molecular probe (1) with three different derivatized fluorophores, i.e. anthracene (An), 7-nitrobenz-2-oxa-1,3-diazole (NBD) and rhodamine-B (Rh) appended on to a Tren [tris-(2-aminoethyl)amine] receptor was demonstrated to exhibit metal ion induced ratiometric fluorescence signalling through the initiation of a two-step fluorescence resonance energy transfer (FRET) process owing to a compatible and substantial spectral overlap of electronic absorption and fluorescence of initial donor-intermediate donor/acceptor-final acceptor pairs...
June 26, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28650455/clinical-impact-of-nk-cell-reconstitution-after-reduced-intensity-conditioned-unrelated-cord-blood-transplantation-in-patients-with-acute-myeloid-leukemia-analysis-of-a-prospective-phase-ii-multicenter-trial-on-behalf-of-the-soci%C3%A3-t%C3%A3-fran%C3%A3-aise-de-greffe-de
#14
S Nguyen, A Achour, L Souchet, S Vigouroux, P Chevallier, S Furst, A Sirvent, J-O Bay, G Socié, P Ceballos, A Huynh, J Cornillon, S Francois, F Legrand, I Yakoub-Agha, G Michel, N Maillard, G Margueritte, S Maury, M Uzunov, C-E Bulabois, M Michallet, L Clement, C Dauriac, K Bilger, J Lejeune, V Béziat, V Rocha, B Rio, S Chevret, V Vieillard
Unrelated cord blood transplantation (UCBT) after a reduced intensity conditioning regimen (RIC) has extended the use of UCB in elderly patients and those with co-morbidities without an HLA-identical donor, although post-transplant relapse remains a concern in high-risk acute myeloid leukemia (AML) patients. HLA incompatibilities between donor and recipient might enhance the alloreactivity of natural killer (NK) cells after allogeneic hematopoietic stem-cell transplantation (HSCT). We studied the reconstitution of NK cells and KIR-L mismatch in 54 patients who underwent a RIC-UCBT for AML in CR in a prospective phase II clinical trial...
June 26, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28650449/parent-versus-child-donor-perceptions-of-the-bone-marrow-donation-experience
#15
G E Switzer, J Bruce, G Pastorek, D M Kiefer, H Kobusingye, R Drexler, R A M Besser, D L Confer, M M Horowitz, R J King, B E Shaw, S M van Walraven, L Wiener, W Packman, J W Varni, M A Pulsipher
No abstract text is available yet for this article.
June 26, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28650358/the-volume-outcome-relationship-in-deceased-donor-kidney-transplantation-and-implications-for-regionalization
#16
Andrew S Barbas, Martin J Dib, Aparna S Rege, Deepak S Vikraman, Debra L Sudan, Stuart J Knechtle, John E Scarborough
OBJECTIVE: The aim of this study was to investigate the volume-outcome relationship in kidney transplantation by examining graft and patient outcomes using standardized risk adjustment (observed-to-expected outcomes). A secondary objective was to examine the geographic proximity of low, medium, and high-volume kidney transplant centers in the United States. SUMMARY OF BACKGROUND DATA: The significant survival benefit of kidney transplantation in the context of a severe shortage of donor organs mandates strategies to optimize outcomes...
July 22, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28650214/distinct-dna-methylation-profiles-in-bone-and-blood-of-osteoporotic-and-healthy-postmenopausal-women
#17
Sjur Reppe, Tonje G Lien, Yi-Hsiang Hsu, Vigdis T Gautvik, Ole K Olstad, Rona Yu, Hege G Bakke, Robert Lyle, Marianne K Kringen, Ingrid K Glad, Kaare M Gautvik
DNA methylation affects expression of associated genes and may contribute to the missing genetic effects from genome-wide association studies of osteoporosis. To improve insight into the mechanisms of postmenopausal osteoporosis, we combined transcript profiling with DNA methylation analyses in bone. RNA and DNA were isolated from 84 bone biopsies of postmenopausal donors varying markedly in bone mineral density (BMD). In all, 2529 CpGs in the top 100 genes most significantly associated with BMD were analyzed...
June 26, 2017: Epigenetics: Official Journal of the DNA Methylation Society
https://www.readbyqxmd.com/read/28650164/effect-of-ancillary-ligands-a-on-oxidative-addition-of-ch4-to-re-iii-complexes-a-b-al-ch-sih-n-p-using-mp2-ccsd-t-and-mcscf-methods
#18
Riffat Parveen, Thomas R Cundari
A computational study of oxidative addition (OA) of methane to Re(OC2H4)3A (A = ancillary ligand, which thus may interact with the metal) was carried out. The choice of ancillary ligands has been made based on their electronic properties: A = B or Al (Lewis acid), CH or SiH (electron precise), N (σ-donor) and P (σ-donor/π-acid). The main objective of this study was to understand how variation in A affects the structural and electronic properties of the reactant d(4)-Re(III) complex, which can ultimately tune the kinetics and thermodynamics of OA...
June 26, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28650115/previous-live-donor-hemi-hepatectomy-as-cadaveric-donor-of-remnant-liver
#19
John C LaMattina, Samuel Sultan, Steven I Hanish, David A Bruno, Paul J Thuluvath, Anurag Maheshwari, Rolf N Barth
No abstract text is available yet for this article.
June 26, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28650112/liver-graft-preservation-using-perfluorocarbon-improves-the-outcomes-of-simulated-donation-after-cardiac-death-liver-transplantation-in-rats
#20
Shinya Okumura, Tadahiro Uemura, Xiangdong Zhao, Yuki Masano, Tatsuaki Tsuruyama, Yasuhiro Fujimoto, Taku Iida, Shintaro Yagi, Dmitri Bezinover, Bruce Spiess, Toshimi Kaido, Shinji Uemoto
INTRODUCTION: The outcomes of liver transplantation from donation after cardiac death (DCD) donors remain poor due to the severe warm ischemic injury. Perfluorocarbon (PFC) is a novel compound with high oxygen carrying capacity. In the present study, a rat model simulating DCD liver transplantation was used, and the impact of improved graft oxygenation provided by PFC addition on liver ischemia-reperfusion injury (IRI) and survival after DCD liver transplantation was investigated. MATERIAL AND METHODS: Orthotopic liver transplants were performed in male Lewis rats, using DCD liver grafts preserved with cold University of Wisconsin (UW) solution in the control group and preserved with cold oxygenated UW solution with addition of 20% PFC in the PFC group...
June 26, 2017: Liver Transplantation
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