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https://www.readbyqxmd.com/read/28717716/breast-cancer-and-african-ancestry-lessons-learned-at-the-10-year-anniversary-of-the-ghana-michigan-research-partnership-and-international-breast-registry
#1
Evelyn Jiagge, Joseph Kwaku Oppong, Jessica Bensenhaver, Francis Aitpillah, Kofi Gyan, Ishmael Kyei, Ernest Osei-Bonsu, Ernest Adjei, Michael Ohene-Yeboah, Kathy Toy, Karen Eubanks Jackson, Marian Akpaloo, Dorcas Acheampong, Beatrice Antwi, Faustina Obeng Agyeman, Zainab Alhassan, Linda Ahenkorah Fondjo, Osei Owusu-Afriyie, Robert Newman Brewer, Amma Gyamfuah, Barbara Salem, Timothy Johnson, Max Wicha, Sofia Merajver, Celina Kleer, Judy Pang, Emmanuel Amankwaa-Frempong, Azadeh Stark, Francis Abantanga, Lisa Newman, Baffour Awuah
Women with African ancestry in western, sub-Saharan Africa and in the United States represent a population subset facing an increased risk of being diagnosed with biologically aggressive phenotypes of breast cancer that are negative for the estrogen receptor, the progesterone receptor, and the HER2/neu marker. These tumors are commonly referred to as triple-negative breast cancer. Disparities in breast cancer incidence and outcome related to racial or ethnic identity motivated the establishment of the International Breast Registry, on the basis of partnerships between the Komfo Anokye Teaching Hospital in Kumasi, Ghana, the University of Michigan Comprehensive Cancer Center in Ann Arbor, Michigan, and the Henry Ford Health System in Detroit, Michigan...
October 2016: Journal of Global Oncology
https://www.readbyqxmd.com/read/28705408/superior-in-vitro-and-in-vivo-activity-of-trastuzumab-emtansine-t-dm1-in-comparison-to-trastuzumab-pertuzumab-and-their-combination-in-epithelial-ovarian-carcinoma-with-high-her2-neu-expression
#2
Gulden Menderes, Elena Bonazzoli, Stefania Bellone, Gary Altwerger, Jonathan D Black, Katherine Dugan, Francesca Pettinella, Alice Masserdotti, Francesco Riccio, Anna Bianchi, Luca Zammataro, Christopher de Haydu, Natalia Buza, Pei Hui, Serena Wong, Gloria S Huang, Babak Litkouhi, Elena Ratner, Dan-Arin Silasi, Masoud Azodi, Peter E Schwartz, Alessandro D Santin
BACKGROUND: Epithelial ovarian cancer (EOC) remains the most lethal gynecologic malignancy. The objective of this study was to compare the anti-tumor activity of HER2/neu-targeting monoclonal antibodies, trastuzumab (T), pertuzumab (P), combination of trastuzumab and pertuzumab (T+P) and trastuzumab-emtansine (T-DM1) in EOC with high HER2/neu expression. METHODS: Primary EOC cell lines were established and cell blocks were analyzed for HER2/neu expression. Cytostatic, apoptotic and antibody-dependent cell-mediated cytotoxicity (ADCC) activities of T, P, T+P and T-DM1 were evaluated in vitro...
July 10, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28701017/high-level-of-progesteron-receptor-membrane-component-1-pgrmc-1-in-tissue-of-breast-cancer-patients-is-associated-with-worse-response-to-anthracycline-based-neoadjuvant-therapy
#3
Marina Willibald, Isabel Wurster, Christoph Meisner, Ulrich Vogel, Harald Seeger, Alfred O Mueck, Tanja Fehm, Hans Neubauer
PGRMC1 is known to be highly expressed in breast cancer tissue and is associated with chemoresistance in breast cancer cells. However, its role in breast cancer signaling is not fully understood yet. In the present study, the expression status of PGRMC1 and its phosphorylated version (pPGRMC1) in breast cancer tissue and surrounding stroma before and after neoadjuvant therapy was examined to find a possible association to therapy response. Tissue biopsies of 69 breast cancer patients were analyzed by immunohistochemistry for expression levels of PGRMC1 and pPGRMC1...
July 12, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28699970/reduction-of-doxorubicin-induced-genotoxicity-by-handroanthus-impetiginosus-in-mouse-bone-marrow-revealed-by-micronucleus-assay
#4
M F G Boriollo, T A Silva, M F Rodrigues-Netto, J J Silva, M B Marques, C T S Dias, J F Höfling, M C C Resck, N M S Oliveira
Handroanthus impetiginosus has long been used in traditional medicine and various studies have determined the presence of bioactive chemical compounds and potential phytotherapeutics. In this study, the genotoxicity of the lyophilized tincture of H. impetiginosus bark (THI) was evaluated in mouse bone marrow using micronucleus assays. The interaction between THI and genotoxic effects induced by the chemotherapeutic agent, doxorubicin (DXR), was also analyzed. Experimental groups were evaluated 24 to 48 h after treatment with N-nitroso-N-ethylurea (NEU; 50 mg/kg), DXR (5 mg/kg), sodium chloride (NaCl; 150 mM), and THI (0...
July 10, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/28698184/the-association-of-mammographic-density-and-molecular-breast-cancer-subtype
#5
Brandy L Edwards, Kristen A Atkins, George J Stukenborg, Wendy M Novicoff, Krista N Larson, Wendy F Cohn, Jennifer A Harvey, Anneke T Schroen
BACKGROUND: Mammographic density (MD) is associated with increased breast cancer (BC) risk, yet limited data exists on an association between MD and BC molecular subtypes. METHODS: Women 18 years and older with BC and available mammograms between 2003-2012 were enrolled in a larger study on MD. MD was classified by Breast Imaging Reporting and Data System (BI-RADS) classification and by volumetric breast percent density (Volpara SolutionsTM). Subtype was assigned by hormone receptor-status, tumor grade and mitotic score (MS)...
July 11, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28690659/chronic-myeloid-leukemia-with-a-complex-variant-ph-translocation-that-develops-in-breast-carcinoma-postchemotherapy-a-rare-but-treatable-entity
#6
Gargi Tikku, Monica Jain, Pragya Shukla
We report a case of chronic myeloid leukemia (CML) that developed after postoperative chemotherapy with cyclophosphamide, doxorubicin and 5-fluorouracil (CAF) for breast cancer. A 55-year-old woman was diagnosed with invasive ductal carcinoma which was treated with a modified radical mastectomy followed by six cycles of CAF chemotherapy. Nine years later, she developed CML and locoregional recurrence. Her breast recurrence showed strong estrogen receptor, weak progesterone receptor and strong human epidermal growth factor 2 (score 3+) expression...
June 2017: Journal of Breast Cancer
https://www.readbyqxmd.com/read/28687198/neu-p11-a-novel-mt1-mt2-agonist-reverses-diabetes-by-suppressing-the-hypothalamic-pituitary-adrenal-axis-in-rats
#7
Jun Zhou, Jin Zhang, XiaoHong Luo, MaoXing Li, Ying Yue, Moshe Laudon, ZhengPing Jia, RuXue Zhang
Excessive glucocorticoid (GC) in type 2 diabetes mellitus (T2DM) reduces insulin sensitivity, impairs β-cell function, increases gluconeogenesis and glycogenolysis, impairs glucose uptake and metabolism, and reduces the insulinotropic effects of glucagon-like peptide 1. Melatonin, which serves as a physiological regulator of the hypothalamic-pituitary-adrenal (HPA) axis, has been suggested to have anti-diabetic effects. The objective of the present study was to investigate the effect of the MT1/MT2 melatonin agonist Neu-P11 on glucose and lipid metabolism in T2DM rats induced by a high fat diet combined with low doses of streptozotocin...
July 4, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28681313/an-independent-survival-prognostic-role-for-human-epidermal-growth-factor-receptor-2-in-gastric-cancer-evidence-from-a-meta-analysis
#8
Y Wang, L He, Y Cheng
BACKGROUND: Some studies have suggested that human epidermal growth factor receptor 2 (HER2) positive is associated with poor outcomes in gastric cancer (GC), whereas another inconsistent studies make the situation confused. This meta-analysis was performed to determine whether HER2 played an independent prognostic role in clinicopathological characteristics and survival outcomes of GC. PATIENTS AND METHODS: Combination of GC and human epidermal growth factor 2 or HER2 or HER2/neu or erbB-2 or cerbB-2 or c-erbB2 or CD340 or p185 were used as key words...
July 5, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28679774/syd985-a-novel-duocarmycin-based-her2-targeting-antibody-drug-conjugate-shows-antitumor-activity-in-uterine-and-ovarian-carcinosarcoma-with-her2-neu-expression
#9
Gulden Menderes, Elena Bonazzoli, Stefania Bellone, Jonathan D Black, Federica Predolini, Francesca Pettinella, Alice Masserdotti, Luca Zammataro, Gary Altwerger, Natalia Buza, Pei Hui, Serena Wong, Babak Litkouhi, Elena Ratner, Dan-Arin Silasi, Masoud Azodi, Peter E Schwartz, Alessandro D Santin
Purpose: Carcinosarcomas (CS) are highly aggressive gynecologic malignancies containing both carcinomatous and sarcomatous elements with heterogeneous HER2/neu expression. We compared the efficacy of SYD985, (Synthon Biopharmaceuticals BV), a novel HER2-targeting antibody-drug conjugate (ADC), to Trastuzumab emtansine (T-DM1, Genentech-Roche) against primary uterine and ovarian CS. <p>Experimental Design: Eight primary CS cell lines were evaluated for HER2/neu surface expression by IHC and gene amplification by FISH assays...
July 5, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28677353/individualized-treatment-of-allergic-rhinitis-according-to-nasal-cytology
#10
Jianjun Chen, Yue Zhou, Li Zhang, Yanjun Wang, Amber N Pepper, Seong H Cho, Weijia Kong
PURPOSE: Nasal cytology is important in the diagnosis and treatment of nasal inflammatory diseases. Treatment of allergic rhinitis (AR) according to nasal cytology has not been fully studied. We plan to explore the individualized treatment of AR according to nasal cytology. METHODS: Nasal cytology from 468 AR patients was examined for inflammatory cell quantity (grade 0-5) and the percentage of neutrophils and eosinophils. Results were subdivided into the following categories: AR(Eos), eosinophil ≥50% of the whole inflammatory cells; AR(Neu), neutrophils ≥90%; AR(Eos/Neu), 10%≤ eosinophil <50%; AR(Low), grade 0/1 inflammatory cell quantity...
September 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28676440/severe-bone-loss-and-multiple-fractures-in-scn8a-related-epileptic-encephalopathy
#11
Tim Rolvien, Sebastian Butscheidt, Anke Jeschke, Axel Neu, Jonas Denecke, Christian Kubisch, Miriam H Meisler, Klaus Pueschel, Florian Barvencik, Timur Yorgan, Ralf Oheim, Thorsten Schinke, Michael Amling
Mutations in the SCN8A gene encoding the neuronal voltage-gated sodium channel Nav1.6 are known to be associated with epileptic encephalopathy type 13. We identified a novel de novo SCN8A mutation (p.Phe360Ala, c.1078_1079delTTinsGC, Exon 9) in a 6-year-old girl with epileptic encephalopathy accompanied by severe juvenile osteoporosis and multiple skeletal fractures, similar to three previous case reports. Skeletal assessment using dual energy X-ray absorptiometry (DXA), high-resolution peripheral quantitative computed tomography (HR-pQCT) and serum analyses revealed a combined trabecular and cortical bone loss syndrome with elevated bone resorption...
July 1, 2017: Bone
https://www.readbyqxmd.com/read/28674429/citrate-suppresses-tumor-growth-in-multiple-models-through-inhibition-of-glycolysis-the-tricarboxylic-acid-cycle-and-the-igf-1r-pathway
#12
Jian-Guo Ren, Pankaj Seth, Huihui Ye, Kun Guo, Jun-Ichi Hanai, Zaheed Husain, Vikas P Sukhatme
In this study we have tested the efficacy of citrate therapy in various cancer models. We found that citrate administration inhibited A549 lung cancer growth and additional benefit accrued in combination with cisplatin. Interestingly, citrate regressed Ras-driven lung tumors. Further studies indicated that citrate induced tumor cell differentiation. Additionally, citrate treated tumor samples showed significantly higher infiltrating T-cells and increased blood levels of numerous cytokines. Moreover, we found that citrate inhibited IGF-1R phosphorylation...
July 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28673442/when-habits-are-dangerous-alcohol-expectancies-and-habitual-decision-making-predict-relapse-in-alcohol-dependence
#13
Miriam Sebold, Stephan Nebe, Maria Garbusow, Matthias Guggenmos, Daniel J Schad, Anne Beck, Soeren Kuitunen-Paul, Christian Sommer, Robin Frank, Peter Neu, Ulrich S Zimmermann, Michael A Rapp, Michael N Smolka, Quentin J M Huys, Florian Schlagenhauf, Andreas Heinz
BACKGROUND: Addiction is supposedly characterized by a shift from goal-directed to habitual decision making, thus facilitating automatic drug intake. The two-step task allows distinguishing between these mechanisms by computationally modeling goal-directed and habitual behavior as model-based and model-free control. In addicted patients, decision making may also strongly depend upon drug-associated expectations. Therefore, we investigated model-based versus model-free decision making and its neural correlates as well as alcohol expectancies in alcohol-dependent patients and healthy controls and assessed treatment outcome in patients...
May 22, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28669452/metaplastic-breast-carcinoma-analysis-of-31-cases-from-a-single-institute
#14
Salah Fayaz, Gerges Attia Demian, Heba El-Sayed Eissa, Henney Amanguno, Sadeq Abuzalouf
PURPOSE: Metaplastic carcinoma of the breast (MBC) accounts for less than 1% of all mammary tumors. This study aimed at revision of the clinico-pathological features, treatment strategy and outcome for MBC patients presented to the Kuwait Cancer Control Center to define the clinical behavior and prognostic factors of these neoplasms in our population. PATIENT AND METHODS: Thirty-one patients were retrieved from our surgical pathology registry between January 2005 and December 2014...
June 29, 2017: Journal of the Egyptian National Cancer Institute
https://www.readbyqxmd.com/read/28667103/expression-and-prognostic-value-of-her-2-neu-in-primary-breast-cancer-with-sentinel-lymph-node-metastasis
#15
Zhen-Jun Tong, Ning-Yao Shi, Zhi-Ji Zhang, Xiao-Dong Yuan, Xiao-Ming Hong
This study explores the correlation of human epidermal growth factor receptor-2 (HER-2) protein expression with sentinel lymph node (SLN) metastasis and prognosis of breast cancer. The breast cancer tissues and adjacent tissues were obtained from patients with primary breast cancer. Quantitative real-time polymerase chain reaction (qRT-PCR) was performed to detect the mRNA level of HER-2. Spearman correlation analysis was used to analyze the correlation of HER-2 expression with SLN metastasis. The disease-free survival (DFS) and overall survival (OS) of breast cancer patients were investigated...
June 30, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28661760/maximizing-the-clinical-benefit-of-anthracyclines-in-addition-to-taxanes-in-the-adjuvant-treatment-of-early-breast-cancer
#16
Giuseppe Curigliano, Carmen Criscitiello
The Oncology Grand Rounds series is designed to place original reports published in the Journal into clinical context. A case presentation is followed by a description of diagnostic and management challenges, a review of the relevant literature, and a summary of the authors' suggested management approaches. The goal of this series is to help readers better understand how to apply the results of key studies, including those published in Journal of Clinical Oncology, to patients seen in their own clinical practice...
June 29, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28659297/nutritional-strategies-and-gut-microbiota-composition-as-risk-factors-for-necrotizing-enterocolitis-in-very-preterm-infants
#17
Jean-Christophe Rozé, Pierre-Yves Ancel, Patricia Lepage, Laetitia Martin-Marchand, Ziad Al Nabhani, Johanne Delannoy, Jean-Charles Picaud, Alexandre Lapillonne, Julio Aires, Mélanie Durox, Dominique Darmaun, Josef Neu, Marie-José Butel
Background: The pathophysiology of necrotizing enterocolitis (NEC) remains poorly understood.Objective: We assessed the relation between feeding strategies, intestinal microbiota composition, and the development of NEC.Design: We performed a prospective nationwide population-based study, EPIPAGE 2 (Etude Epidémiologique sur les Petits Ages Gestationnels), including preterm infants born at <32 wk of gestation in France in 2011. From individual characteristics observed during the first week of life, we calculated a propensity score for the risk of NEC (Bell's stage 2 or 3) after day 7 of life...
June 28, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28658046/induction-of-endogenous-neural-stem-cells-by-extracorporeal-shock-waves-after-spinal-cord-injury
#18
Dong-Chul Shin, Kee-Yong Ha, Young-Hoon Kim, Jang-Woon Kim, Yoo-Kyung Cho, Sang-Il Kim
STUDY DESIGN: Animal experimental study OBJECTIVES.: The purpose of this study is to investigate the effects of extracorporeal shock waves (ESWs) on endogenous neural stem cells (NSCs) proliferation after spinal cord injury (SCI). SUMMARY OF BACKGROUND DATA: Exogenous stem cell transplantation for SCI still has many limitations to be addressed such as ideal cell sources, timing of transplantation, and fate of the transplanted cells. Moreover, the efficacy is another issue due to a peculiar pathologic condition in the chronic phase of SCI...
June 27, 2017: Spine
https://www.readbyqxmd.com/read/28655817/antibody-against-microbial-neuraminidases-recognizes-human-sialidase-3-neu3-the-neuraminidase-sialidase-superfamily-revisited
#19
Chiguang Feng, Jihong Li, Greg Snyder, Wei Huang, Simeon E Goldblum, Wilbur H Chen, Lai-Xi Wang, Bruce A McClane, Alan S Cross
Neuraminidases (NAs) are critical virulence factors for several microbial pathogens. With a highly conserved catalytic domain, a microbial NA "superfamily" has been proposed. We previously reported that murine polymorphonuclear leukocyte (PMN) sialidase activity was important in leukocyte trafficking to inflamed sites and that antibodies to Clostridium perfringens NA recognized a cell surface molecule(s), presumed to be a sialidase of eukaryotic origin on interleukin-8-stimulated human and murine PMNs. These antibodies also inhibited cell sialidase activity both in vitro and, in the latter instance, in vivo We therefore hypothesized that mammalian sialidases share structural homology and epitopes with microbial NAs...
June 27, 2017: MBio
https://www.readbyqxmd.com/read/28653892/specific-antibodies-and-sensitive-immunoassays-for-the-human-epidermal-growth-factor-receptors-her2-her3-and-her4
#20
Marianne Nordlund Broughton, Arne Westgaard, Elisabeth Paus, Miriam Øijordsbakken, Karoline J Henanger, Bjørn Naume, Trine Bjøro
The use of trastuzumab in patients with breast cancer that overexpresses human epidermal growth factor receptor 2 has significantly improved treatment outcomes. However, a substantial proportion of this patient group still experiences progression of the disease after receiving the drug. Evaluation of the changes in expression of the human epidermal growth factor receptors could be of interest. Monoclonal antibodies against the extracellular domain of the human growth factor receptors, 2, 3, and 4, have been raised, and specific and sensitive immunoassays have been established...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
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