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https://www.readbyqxmd.com/read/28545193/synthesis-characterization-and-cytotoxic-evaluation-of-graphene-oxide-nanosheets-in-vitro-liver-cancer-model
#1
Samah A Loutfy, Taher A Salaheldin, Marwa A Ramadan, Khaled Yehia Farroh, Zeinab F Abdallah, Tareq Youssef Abd Eloahed
Background: Graphene nanosheets have a broad spectrum of biomedical applications. Hepatocellular cancer (HCC) is a major health problem in the Egyptian population. Currently, treatment strategies are invasive and have several adverse side effects. Thus, other approaches are required for managing this aggressive type of cancer. Our objective here was to prepare and characterize graphene oxide nanosheets and evaluate cytotoxic effect at the molecular level in an in vitro human liver cancer cell model (HepG2)...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28545192/atypical-teratoid-rhabdoid-tumor-of-brain-a-clinicopathologic-study-of-eleven-patients-and-review-of-literature
#2
Nasir Ud Din, Abrar Barakzai, Aisha Memon, Sheema Hasan, Zubair Ahmad
Background: Atypical teratoid/ rhabdoid tumor (AT/RT) is a rare aggressive embryonal central nervous system (CNS) tumor of infancy and early childhood. Majority of the cases arise in the posterior fossa, and remaining in the cerebrum. Aims: To analyze the clinicopathologic features of AT/RT on a cohort of cases. Materials and methods: All reported cases of AT/RT at the Department of Pathology and Laboratory Medicine, Aga Khan University Hospital (AKUH) from 2007 to 2016 were reviewed for clinical and pathological features...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28544905/high-serum-levels-of-soluble-interleukin-2-receptor-sil2-r-interleukin-6-il-6-and-tumor-necrosis-factor-alpha-tnf-are-associated-with-adverse-clinical-features-and-predict-poor-outcome-in-diffuse-large-b-cell-lymphoma
#3
Ivan Dlouhy, Xavier Filella, Jordina Rovira, Laura Magnano, Alfredo Rivas-Delgado, Tycho Baumann, Alejandra Martínez-Trillos, Olga Balagué, Antonio Martínez, Blanca González-Farre, Kennosuke Karube, Eva Gine, Julio Delgado, Elías Campo, Armando López-Guillermo
Diffuse large B-cell lymphoma (DLBCL) is an aggressive lymphoma with heterogeneous outcomes. To improve accuracy of the international prognostic index score, new biological variables are being investigated. The aim of this study was to determine the prognostic significance of serum levels of different cytokines, namely soluble interleukin-2 receptor (sIL2-R), interleukin-6 (IL-6) and tumor necrosis factor alpha (TNF). We analyzed 197 de novo DLBCL patients (91 M/106 F; median age 66 years) treated with immunochemotherapy in a single institution...
May 17, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28544818/ubiquitination-in-melanoma-pathogenesis-and-treatment
#4
REVIEW
Jinyuan Ma, Weinan Guo, Chunying Li
Melanoma is one of the most aggressive skin cancers with fiercely increasing incidence and mortality. Since the progressive understanding of the mutational landscape and immunologic pathogenic factors in melanoma, the targeted therapy and immunotherapy have been recently established and gained unprecedented improvements for melanoma treatment. However, the prognosis of melanoma patients remains unoptimistic mainly due to the resistance and nonresponse to current available drugs. Ubiquitination is a posttranslational modification which plays crucial roles in diverse cellular biological activities and participates in the pathogenesis of various cancers, including melanoma...
May 23, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28544664/to-reproduce-or-work-insect-castes-emerge-from-socially-induced-changes-in-nutrition-related-genes
#5
Amy L Toth
In social species, there is a fundamental trade-off between 'me' and 'we'; that is, should I reproduce, or should I work to help others to reproduce? In this issue of Molecular Ecology, Okada et al. () delve into the evolution and genetic mechanisms of this core question, focusing on social caste formation in insects. The authors take advantage of a unique ant in the genus Diacamma, which has secondarily lost the classic, highly different queens and workers found in many other ants, bees and wasps. Instead, Diacamma ant castes are decided via aggressive dominance interactions among adult females, similar to dominance hierarchies seen in primitively social insects and many social vertebrates...
June 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28544287/fast-clearable-nanocarriers-conducting-chemo-photothermal-combination-therapy-to-inhibit-recurrence-of-malignant-tumors
#6
Lingzhi Zhao, Wei Yuan, Huijun Phoebe Tham, Hongzhong Chen, Pengyao Xing, Huijing Xiang, Xin Yao, Xiaochen Qiu, Yu Dai, Liangliang Zhu, Fuyou Li, Yanli Zhao
Inhomogeneous heating by photothermal therapy (PTT) during cancer treatment often results in the recurrence of tumors. Thus, integrating PTT with chemotherapy (CHT) may provide a complementary treatment for enhanced therapeutic efficiency. Herein, this study develops a hollow structured polymer-silica nanohybrid (HPSN) as a nanocarrier to simultaneously deliver the anticancer drug paclitaxel and photothermal agent palladium phthalocyanine to tumors through enhanced permeation and the retention effect. A combinational CHT/PTT therapy on mice bearing aggressive tumor grafts is conducted...
May 24, 2017: Small
https://www.readbyqxmd.com/read/28544259/periodontal-maintenance-following-active-specialist-treatment-should-patients-stay-put-or-return-to-primary-dental-care-for-continuing-care-a-comparison-of-outcomes-based-on-the-literature
#7
REVIEW
P G Leavy, D P Robertson
OBJECTIVES: To review the evidence for the efficacy of periodontal maintenance (PM) carried out in primary dental care (PDC) compared to the specialist setting for patients previously treated in a specialist setting for chronic (ChP) or aggressive (AgP) periodontitis. METHODS: A focused PICO question and search protocol were developed. Online databases including MEDLINE, EMBASE, WEB OF SCIENCE™ and COCHRANE LIBRARY were searched along with specialist journals in the subject area of periodontal research...
May 22, 2017: International Journal of Dental Hygiene
https://www.readbyqxmd.com/read/28544145/nut-carcinoma-presenting-in-the-palate-a-case-report
#8
Libana Raffoul Bjornstrup, Jesper Reibel, Katalin Kiss, Morten Schioedt
NUT carcinomas (NC) are rare and aggressive tumours characterized by chromosomal rearrangements of the gene encoding for nuclear protein of the testis (NUT) located on chromosome 15q14. This article presents a case of a 60-year-old woman diagnosed with NC presenting as a fast growing primary tumour in the right palate. Further evaluation revealed a tumour mass in the lungs and widespread metastases. A review of the literature did not reveal earlier cases presenting in the palate. In order to improve early diagnosis it is suggested to perform immunohistochemical testing for NUT in all poorly differentiated carcinomas without glandular differentiation arising in the chest, and head and neck (Clin Cancer Res, 18, 2012, 5773)...
May 25, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28543967/central-nervous-system-involvement-of-primary-cutaneous-diffuse-large-b-cell-lymphoma-leg-type-13-cases
#9
E Gardette, A Maraval, F Brunet-Possenti, G Quereux, H Beltraminelli, I Templier, J Hodel, E Scherman, E Durot, M Bagot, A Pham-Ledard, F Grange, M Beylot-Barry, S Ingen-Housz-Oro
Primary cutaneous diffuse large B-cell lymphoma, leg type (PCDLBCL-LT) is an aggressive primary cutaneous B-cell lymphoma affecting older people.(1) Rituximab (RTX) combined with polychemotherapy (RTX-PCT) has improved survival but relapses are frequent.(2) Central nervous system (CNS) involvement is rare and poorly described. This article is protected by copyright. All rights reserved.
May 23, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28543798/mucosal-melanoma-clinical-histological-and-c-kit-gene-mutational-profile-of-86-french-cases
#10
E Cinotti, J Chevallier, B Labeille, F Cambazard, L Thomas, B Balme, M T Leccia, M D'Incan, P Vercherin, C Douchet, P Rubegni, J L Perrot
BACKGROUND: Mucosal melanomas are rare and highly aggressive tumors. Few studies evaluated mucosal melanomas of locations other than the head and neck region, and other than those of the Asian population. OBJECTIVES: The objective of this study was to analyze the clinical and histological features, as well as the mutational status of c-kit and b-raf gene of mucosal melanoma in any localization in a French series. METHODS: We investigated clinical (sex, age, performance status, survival, treatment of the patients and lack of pigmentation of the tumors) and histopathologic features (ulceration, Breslow's index, mitotic rate), as well as the mutational status of c-kit and b-raf of 86 mucosal melanomas diagnosed in 15 years in four French University Hospitals...
May 22, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28543794/loss-of-arid1a-expression-is-associated-with-poor-prognosis-in-invasive-micropapillary-carcinomas-of-the-breast-a-clinicopathologic-and-immunohistochemical-study-with-long-term-survival-analysis
#11
Semen Onder, Merdan Fayda, Hasan Karanlık, Aysel Bayram, Fatma Şen, Neslihan Cabioglu, Sıtkı Tuzlalı, Rıdvan İlhan, Ekrem Yavuz
Invasive micropapillary carcinoma (IMPC) of the breast is a highly aggressive and a rare subtype of breast cancer. In this study, we aimed to investigate differences between pure and mixed IMPCs of the breast in terms of clinicopathologic features, and also to analyze the significance of expressions of ARID1A and bcl-2 regarding prognosis. Sixty-nine of IMPCs consisting of 21 pure and 48 mixed type diagnosed at Pathology Department of Istanbul Medical Faculty between 2000 and 2011, who had complete follow-up data, were collected to analyze ARID1A and bcl-2 expressions immunohistochemically with prognosis...
May 23, 2017: Breast Journal
https://www.readbyqxmd.com/read/28543719/the-role-of-self-serving-cognitive-distortions-in-reactive-and-proactive-aggression
#12
Sanne Oostermeijer, Kirsten C Smeets, Lucres M C Jansen, Tijs Jambroes, Nanda N J Rommelse, Floor E Scheepers, Jan K Buitelaar, Arne Popma
BACKGROUND: Aggression is often divided into reactive and proactive forms. Reactive aggression is typically thought to encompass 'blaming others' and 'assuming the worst', while proactive aggression relates to 'self-centeredness' and 'minimising/mislabelling'. AIM: Our aim was to evaluate relationships between reactive and proactive aggression and cognitive distortions and to test whether changes in these cognitions relate to changes in aggression. METHODS: A total of 151 adolescents (60% boys; mean age 15...
May 24, 2017: Criminal Behaviour and Mental Health: CBMH
https://www.readbyqxmd.com/read/28543664/comparison-of-male-conflict-behavior-in-chimpanzees-pan-troglodytes-and-bonobos-pan-paniscus-with-specific-regard-to-coalition-and-post-conflict-behavior
#13
Martin Surbeck, Christophe Boesch, Cédric Girard-Buttoz, Catherine Crockford, Gottfried Hohmann, Roman M Wittig
Coalitions among males during within group conflicts have a strong influence on the competitive and social environment within social groups. To evaluate possible variation in the occurrence of such coalitions in our closest relatives, chimpanzees and bonobos, we compared male aggression and coalitionary behavior in two natural communities, one of each species, with a similar size and composition. Furthermore we compared affiliative behavior that might be related to coalition formation among males. We found higher frequencies of aggression and a greater likelihood to form coalitions during within-group conflicts among wild male chimpanzees at Taï compared to wild male bonobos at LuiKotale...
June 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/28543532/intraepidermal-merkel-cell-carcinoma-a-case-series-of-a-rare-entity-with-clinical-follow-up
#14
George Jour, Phyu P Aung, Eduardo Rozas-Muñoz, Johnathan L Curry, Victor Prieto, Doina Ivan
BACKGROUND: Merkel cell carcinoma (MCC) is a rare but aggressive cutaneous carcinoma. MCC involves typically dermis and although epidermotropism has been reported, MCC strictly intraepidermal or in situ (MCCIS) is exceedingly rare. Most of the cases of MCCIS described so far have associated other lesions, such as squamous or basal cell carcinoma, actinic keratosis, etc. Herein, we describe three patients with MCC strictly in situ, without a dermal component. METHODS: Our patients were elderly, two of the lesions involved the head and neck area and one was on a finger...
May 23, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28543363/histiocytic-sarcoma-in-14-miniature-schnauzers-a-new-breed-predisposition
#15
J A Lenz, E Furrow, L E Craig, C M Cannon
OBJECTIVES: To describe a series of miniature schnauzers diagnosed with histiocytic sarcoma and assess for possible breed predisposition. MATERIALS AND METHODS: Medical records of miniature schnauzers with a diagnosis of histiocytic sarcoma between January 2008 and April 2015 were reviewed. Data collected included signalment, body weight, presenting complaint, date of diagnosis, clinicopathologic and diagnostic imaging findings, treatment, therapeutic response, date of death or last follow-up and necropsy findings...
May 25, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/28543353/effect-of-pathologic-revision-and-ki67-and-erg-immunohistochemistry-on-predicting-radical-prostatectomy-outcome-in-men-initially-on-active-surveillance
#16
Leonard P Bokhorst, Monique J Roobol, Chris H Bangma, Geert J van Leenders
OBJECTIVE: To investigate if pathologic biopsy reevaluation and implementation of immunohistochemical biomarkers could improve prediction of radical prostatectomy outcome in men initially on active surveillance. METHODS: Biopsy specimens from diagnosis until switching to radical prostatectomy in men initially on active surveillance in the Dutch part of the Prostate cancer Research International Active Surveillance (PRIAS) study were collected and revised by a single pathologist...
May 24, 2017: Prostate
https://www.readbyqxmd.com/read/28543273/differential-dispersal-and-the-allee-effect-create-power-law-behavior-distribution-of-spot-infestations-during-mountain-pine-beetle-outbreaks
#17
James A Powell, Martha J Garlick, Barbara J Bentz, Nicholas Friedenberg
Mountain pine beetles (MPB, Dendroctonus ponderosae Hopkins) are aggressive insects attacking Pinus host trees. Pines use defensive resin to overwhelm attackers, creating an Allee effect requiring beetles to attack en masse to successfully reproduce. MPB kill hosts, leaving observable, dying trees with red needles. Landscape patterns of infestation depend on MPB dispersal, which decreases with host density. Away from contiguously impacted patches (low beetle densities), infestations are characterized by apparently random spots (of 1-10 trees)...
May 22, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28543179/genetic-ancestry-and-prostate-cancer-susceptibility-snps-in-puerto-rican-and-african-american-men
#18
Margarita Irizarry-Ramírez, Rick A Kittles, Xuemei Wang, Jeannette Salgado-Montilla, Graciela M Nogueras-González, Ricardo Sánchez-Ortiz, Lourdes Guerrios, Keila Rivera, Ebony Shah, Ina Prokhorova, Pamela Roberson, Patricia Troncoso, Curtis A Pettaway
BACKGROUND: The Puerto Rican (PR) population is a racially admixed population that has a high prostate cancer (PCa) mortality rate. We hypothesized in this pilot study that West African Ancestry (WAA) was associated with PCa in this heterogeneous (PR) population. METHODS: A case/case and case/control study was performed. Controls, 207 African American (AA) and 133 PR were defined as men with no PCa, a serum PSA < 2.5 ng/mL and a negative rectal examination...
May 24, 2017: Prostate
https://www.readbyqxmd.com/read/28543176/regional-immunotherapy-for-liver-and-peritoneal-metastases
#19
REVIEW
Jeffrey Reha, Steven C Katz
Pancreatic adenocarcinoma is a biologically aggressive disease, with liver and peritoneal metastases being a frequent cause of death. We examine how the pancreatic carcinoma microenvironment and immunosuppressive landscape favor tumor progression. Immunotherapy has shown promise in select solid tumors, yet challenges remain in applying these gains to stage IV pancreatic adenocarcinoma. We discuss how regional therapy strategies may be leveraged to open new avenues for treating pancreatic carcinoma metastases with immunotherapy...
May 22, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28543083/afferent-and-efferent-projections-of-the-anterior-cortical-amygdaloid-nucleus-in-the-mouse
#20
Bernardita Cádiz-Moretti, María Abellán-Álvaro, Cecília Pardo-Bellver, Fernando Martínez-García, Enrique Lanuza
The anterior cortical amygdaloid nucleus (ACo) is a chemosensory area of the cortical amygdala that receives afferent projections from both the main and accessory olfactory bulbs. The role of this structure is unknown, partially due to a lack of knowledge of its connectivity. In this work, we describe the pattern of afferent and efferent projections of the ACo by using fluorogold and biotinylated dextranamines as retrograde and anterograde tracers, respectively. The results show that the ACo is reciprocally connected with the olfactory system and basal forebrain, as well as with the chemosensory and basomedial amygdala...
May 23, 2017: Journal of Comparative Neurology
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