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https://www.readbyqxmd.com/read/28735439/surgical-management-of-periocular-cancers-high-and-low-risk-features-drive-treatment
#1
REVIEW
Richard C Allen
PURPOSE OF REVIEW: Recent advances in the treatment of eyelid tumors have centered on the excision, evaluation of margins, role of sentinel lymph node biopsy, and adjunctive/adjuvant systemic and radiation therapy. The purpose of this review is to elaborate on these advances. RECENT FINDINGS: Mohs excision of basal cell carcinoma and squamous cell carcinoma continues to provide the greatest success in complete excision of the cancer, especially in those cases of high-risk disease including medial canthal location and recurrent disease...
September 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28731753/new-measurements-of-the-beam-normal-spin-asymmetries-at-large-backward-angles-with-hydrogen-and-deuterium-targets
#2
D Balaguer Ríos, K Aulenbacher, S Baunack, J Diefenbach, B Gläser, D von Harrach, Y Imai, E-M Kabuß, R Kothe, J H Lee, H Merkel, M C Mora Espí, U Müller, E Schilling, C Weinrich, L Capozza, F E Maas, J Arvieux, M A El-Yakoubi, R Frascaria, R Kunne, M Morlet, S Ong, J van de Wiele, S Kowalski, Y Prok
New measurements of the beam normal single spin asymmetry in the electron elastic and quasielastic scattering on the proton and deuteron, respectively, at large backward angles and at ⟨Q^{2}⟩=0.22  (GeV/c)^{2} and ⟨Q^{2}⟩=0.35  ( GeV/c)^{2} are reported. The experimentally observed asymmetries are compared with the theoretical calculation of Pasquini and Vanderhaeghen [Phys. Rev. C 70, 045206 (2004).PRVCAN0556-281310.1103/PhysRevC.70.045206]. The agreement of the measurements with the theoretical calculations shows a dominance of the inelastic intermediate excited states of the nucleon, πN and the Δ resonance...
July 7, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28730369/survival-analysis-in-rectal-carcinoma-after-neoadjuvant-chemoradiation-various-methods-with-different-results
#3
Susanne Merkel, Klaus Weber, Jonas Göhl, Abbas Agaimy, Rainer Fietkau, Werner Hohenberger, Robert Grützmann, Paul Hermanek
PURPOSE: Survival is an important indicator of outcome quality in rectal carcinoma. The 5-year survival rate is the typical outcome measurement. In patients with neoadjuvant chemoradiation followed by curative surgery, 7 years of follow-up is recommended. Different methods of survival analysis lead to different results. Here, we compared four different methods. METHODS: The data of 439 patients with rectal carcinoma treated with neoadjuvant chemoradiation followed by curative total mesorectal excision (TME) surgery between 1995 and 2010 were analysed...
July 20, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28726278/color-doppler-sonography-of-merkel-cell-carcinoma
#4
Orlando Catalano, Fernando Alfageme Roldán, Maria Scotto di Santolo, Francesco Maria Solivetti, Ximena Wortsman
We illustrate the color Doppler sonographic findings in primary cutaneous Merkel cell carcinoma. Eight cases (4 female and 4 male; mean age, 75.4 years) were collected. The most common affected regions were the face (63%) and the hip/buttock (25%). The mean transverse diameter and thickness were 21 and 14 mm, respectively. Fifty percent were oval, and 50% were dome shaped. All lesions were hypoechoic, with variable degrees of heterogeneity. All but 2 lesions were poorly defined. An acoustic reinforcement artifact was present in 3 and epidermal thickening in 2...
July 20, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28718397/the-vitamin-d-standardization-program-vdsp-manual-for-retrospective-laboratory-standardization-of-serum-25-hydroxyvitamin-d-data
#5
Ramon Durazo-Arvizu, Lu Tian, Stephen Brooks, Kurtis Sarafin, Kevin Cashman, Mairead Kiely, Joyce Merkel, Gary Myers, Paul Coates, Christopher Sempos
Low concentrations of total 25-hydroxyvitamin D [25(OH)D], the principal biological measure of vitamin D status, have been associated with clinical and public health outcomes. The determination of levels under which there is an increase in the risk of disease, as well as comparisons across populations, have been difficult to establish due the large assay variability in measuring 25(OH)D. Accordingly, the Vitamin D Standardization Program (VDSP) includes the retrospective standardization of existing 25(OH)D values collected by epidemiological and clinical studies, as well as clinical trials, as one of its main objectives...
July 18, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28717398/preclinical-evaluation-of-nf-%C3%AE%C2%BAb-triggered-dendritic-cells-expressing-the-viral-oncogenic-driver-of-merkel-cell-carcinoma-for-therapeutic-vaccination
#6
Kerstin F Gerer, Michael Erdmann, Sine R Hadrup, Rikke Lyngaa, Lena-Marie Martin, Reinhard E Voll, Beatrice Schuler-Thurner, Gerold Schuler, Niels Schaft, Stefanie Hoyer, Jan Dörrie
BACKGROUND: Merkel cell carcinoma (MCC) is a rare but very aggressive skin tumor that develops after integration of a truncated form of the large T-antigen (truncLT) of the Merkel cell polyomavirus (MCV) into the host's genome. Therapeutic vaccination with dendritic cells (DCs) loaded with tumor antigens is an active form of immunotherapy, which intends to direct the immune system towards tumors which express the respective vaccination antigens. METHODS: Cytokine-matured monocyte-derived DCs of healthy donors and MCC patients were electroporated with mRNA encoding the truncLT...
July 2017: Therapeutic Advances in Medical Oncology
https://www.readbyqxmd.com/read/28715412/cell-fate-specification-in-the-lingual-epithelium-is-controlled-by-antagonistic-activities-of-sonic-hedgehog-and-retinoic-acid
#7
Maha El Shahawy, Claes-Göran Reibring, Cynthia L Neben, Kristina Hallberg, Pauline Marangoni, Brian D Harfe, Ophir D Klein, Anders Linde, Amel Gritli-Linde
The interaction between signaling pathways is a central question in the study of organogenesis. Using the developing murine tongue as a model, we uncovered unknown relationships between Sonic hedgehog (SHH) and retinoic acid (RA) signaling. Genetic loss of SHH signaling leads to enhanced RA activity subsequent to loss of SHH-dependent expression of Cyp26a1 and Cyp26c1. This causes a cell identity switch, prompting the epithelium of the tongue to form heterotopic minor salivary glands and to overproduce oversized taste buds...
July 17, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28713355/respiratory-pathways-reconstructed-by-multi-omics-analysis-in-melioribacter-roseus-residing-in-a-deep-thermal-aquifer-of-the-west-siberian-megabasin
#8
Sergey Gavrilov, Olga Podosokorskaya, Dmitry Alexeev, Alexander Merkel, Maria Khomyakova, Maria Muntyan, Ilya Altukhov, Ivan Butenko, Elizaveta Bonch-Osmolovskaya, Vadim Govorun, Ilya Kublanov
Melioribacter roseus, a representative of recently proposed Ignavibacteriae phylum, is a metabolically versatile thermophilic bacterium, inhabiting subsurface biosphere of the West-Siberian megabasin and capable of growing on various substrates and electron acceptors. Genomic analysis followed by inhibitor studies and membrane potential measurements of aerobically grown M. roseus cells revealed the activity of aerobic respiratory electron transfer chain comprised of respiratory complexes I and IV, and an alternative complex III...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28712323/management-of-cutaneous-merkel-cell-carcinoma
#9
William M Mendenhall, Christopher G Morris, Jessica M Kirwan, Robert J Amdur, Christiana Shaw, Peter T Dziegielewski
PURPOSE: To report the outcomes of patients with previously untreated cutaneous Merkel cell carcinoma (MCC) managed with curative intent. MATERIAL AND METHODS: Between December 1984 and August 2015, 59 patients with previously untreated cutaneous MCC were managed with curative intent with surgery and adjuvant radiotherapy (54 patients) or radiotherapy alone (5 patients) at the University of Florida. Primary sites included head and neck (45 patients), extremities (11 patients) and trunk (3 patients)...
July 15, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28707043/leadless-pacing-current-state-and-future-direction
#10
REVIEW
Matthias Merkel, Philipp Grotherr, Andrea Radzewitz, Claus Schmitt
Leadless pacing is now an established alternative to conventional pacing with subcutaneous pocket and transvenous lead for patients with class I or II single-chamber pacing indication. Available 12-month follow-up data shows a 48% fewer major complication rate in patients with Micra™ compared to a historical control group in a nonrandomized study [1]. There is one system with Food and Drug Administration (FDA) approval and two with the Communauté Européenne (CE) mark. The OPS code for the implantation is 8-83d...
July 13, 2017: Cardiology and Therapy
https://www.readbyqxmd.com/read/28699934/in-brief-avelumab-bavencio-for-metastatic-merkel-cell-carcinoma
#11
(no author information available yet)
No abstract text is available yet for this article.
July 17, 2017: Medical Letter on Drugs and Therapeutics
https://www.readbyqxmd.com/read/28693804/reviewing-the-current-evidence-supporting-early-b-cells-as-the-cellular-origin-of-merkel-cell-carcinoma
#12
REVIEW
C M Sauer, A M Haugg, E Chteinberg, D Rennspiess, V Winnepenninckx, E-J Speel, J C Becker, A K Kurz, A Zur Hausen
Merkel cell carcinoma (MCC) is a highly malignant skin cancer characterized by early metastases and poor survival. Although MCC is a rare malignancy, its incidence is rapidly increasing in the U.S. and Europe. The discovery of the Merkel cell polyomavirus (MCPyV) has enormously impacted our understanding of its etiopathogenesis and biology. MCCs are characterized by trilinear differentiation, comprising the expression of neuroendocrine, epithelial and B-lymphoid lineage markers. To date, it is generally accepted that the initial assumption of MCC originating from Merkel cells (MCs) is unlikely...
August 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28685876/eus-fna-of-the-merkel-cell-carcinoma-metastasis-to-the-pancreas-cytomorphology-and-immunocytochemistry-on-direct-cytological-smears
#13
T Stoos-Veic, M Tadic, G Aralica, V Milicic, C Tomasovic-Loncaric
OBJECTIVE: To report two cases of Merkel cell carcinoma (MCC) metastatic to the pancreas diagnosed with endoscopic ultrasound-guided-fine needle aspiration (EUS-FNA) and to add the case of concomitant chronic lymphocytic leukaemia/small lymphocytic lymphoma (CLL/SLL) and MCC to the literature. The aim is to alert the cytopathologists once more to the problems of differential diagnosis of pancreatic metastasis of MCC and to describe the possibilities of ancillary methods performed on direct cytological smears...
July 6, 2017: Cytopathology: Official Journal of the British Society for Clinical Cytology
https://www.readbyqxmd.com/read/28685255/-erratum-to-structured-patient-handovers-in-perioperative-medicine-rationale-and-implementation-in-clinical-practice
#14
M J Merkel, V von Dossow, B Zwißler
No abstract text is available yet for this article.
July 6, 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/28682014/laparoscopic-dissection-of-merkel-cell-carcinoma-recurrence-at-the-pelvic-lymph-node
#15
Genki Watanabe, Yosuke Fukunaga, Toshiya Nagasaki, Takashi Akiyoshi, Tsuyoshi Konishi, Yoshiya Fujimoto, Satoshi Nagayama, Masashi Ueno
Merkel cell carcinoma (MCC) is a rare neuroendocrine carcinoma of the skin. It has a high propensity for recurrence and metastasis, and there is no clearly defined treatment. MCC recurrence at the pelvic lymph node has rarely been reported. Herein, we report a patient with pelvic lymph node recurrence of MCC that was dissected laparoscopically. Nine years before presenting to us, a 76-year-old male patient had been diagnosed with MCC, and since then, he had had two recurrences. The most recent recurrence-the third recurrence-involved a tumor that had been detected at the right pelvic lymph node, and MCC recurrence was suspected after several imaging studies...
July 6, 2017: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/28681977/detection-and-quantification-of-merkel-cell-polyomavirus-analysis-of-merkel-cell-carcinoma-cases-from-1977-to-2015
#16
Marta E Álvarez-Argüelles, Santiago Melón, Susana Rojo, Ana Fernandez-Blázquez, Jose Antonio Boga, Ana Palacio, Blanca Vivanco, María de Oña
BACKGROUND: This study investigates the presence of Merkel cell polyomavirus (MCPyV) in skin lesions of patients with Merkel cell carcinoma (MCC). METHODS: MCPyV was quantified using quantitative Real-Time-PCR (qRT-PCR) in 34 paraffinized MCC samples (resected/biopsied) originally taken between 1977 and 2015, and 6 non-MCC samples. RESULTS: In 31 (91.2%) MCC-individuals, MCPyV was detected. No virus was observed in any non-MCC tumour. Average age at diagnosis was 78...
July 6, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28680746/novel-immune-checkpoint-blocker-to-treat-merkel-cell-carcinoma
#17
Lorenzo Galluzzi, Guido Kroemer
No abstract text is available yet for this article.
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28677299/tdt-expression-in-normal-and-neoplastic-sebaceous-cells
#18
Sofia-Eleni Tzorakoleftheraki, Alexandros Iliadis, Ioannis Kostopoulos, Triantafyllia Koletsa
AIMS: Terminal deoxynucleotidyl transferase (TdT) is a DNA polymerase expressed in immature, normal and neoplastic, lymphoid or hematopoietic cells and in neuroendocrine carcinomas, like Merkel cell carcinoma and small cell carcinoma. It has not yet been described in cells of epithelial origin. After observing TdT immunoreactivity in normal sebaceous glands we analyzed its spectrum of expression in cases of sebaceous cell hyperplasia and sebaceous cell neoplasms. METHODS & RESULTS: Twelve cases of sebaceous gland hyperplasia (SGH), and three cases of other benign lesions, namely, sebaceoma, sebaceous adenoma and sebaceous nevus, along with four archived cases of sebaceous cell carcinomas (SC) were collected and stained with TdT antibody...
July 5, 2017: Histopathology
https://www.readbyqxmd.com/read/28666988/prospective-assessment-of-sex-related-differences-in-symptom-status-and-health-perception-among-patients-with-atrial-fibrillation
#19
Steffen Blum, Christoph Muff, Stefanie Aeschbacher, Peter Ammann, Paul Erne, Giorgio Moschovitis, Marcello Di Valentino, Dipen Shah, Jürg Schläpfer, Andreas Fischer, Tamara Merkel, Michael Kühne, Christian Sticherling, Stefan Osswald, David Conen
BACKGROUND: We prospectively assessed sex-specific differences in health perception, overall symptom status, and specific symptoms in a large cohort of patients with atrial fibrillation. METHODS AND RESULTS: We performed a prospective multicenter observational cohort study of 1553 patients with atrial fibrillation. Patients completed questionnaires about personal characteristics, comorbidities, and symptoms on a yearly basis. Mean age was 70±11 years among women and 67±12 years among men...
June 30, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28661003/no-detection-of-merkel-cell-polyomavirus-in-oral-lichen-planus-results-of-a-preliminary-study-in-a-french-cohort-of-patients
#20
M Masson Regnault, E Vigarios, F Projetti, B Herbault-Barres, E Tournier, L Lamant, V Sibaud
Oral lichen planus (OLP) is a chronic inflammatory disease considered as a CD8+ T lymphocyte-mediated autoimmune reaction, which may be triggered by undetermined virus. Recent reports have described the detection of Merkel Cell polyomavirus (MCPyV) DNA in oral samples from healthy patients and in patients withdifferent forms of oral cancers. We therefore investigated in a prospective way whether MCPyV was detectable in oral lesions of patients with active OLP. Our preliminary results do not support the hypothesis that OLP may be triggered by MCPyV infection...
June 29, 2017: Journal of Medical Virology
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