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https://www.readbyqxmd.com/read/28550667/-clinical-features-and-risk-factors-for-recurrence-in-mucinous-breast-cancer
#1
L Lei, Z Z Chen, Y B Zheng, B Chen, X Wang, X J Wang
Objective: To investigate the clinicopathological characteristic and risk factors for recurrence in different subtypes of mucinous breast cancer(MBC). Methods: Clinical data of 97 MBC patients at Zhejiang Cancer Hospital from August 2005 to November 2012 were retrospectively analyzed. All of patients were divided into 3 subtypes according to the mucinous components in the tumors, named as partial mixed MBC with less than 50% of mucinous components, main mixed MBC where the mucinous component accounted for 50% to 90%, and pure MBC with more than 90% of mucinous components...
April 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28550498/expression-of-calretinin-in-high-grade-hormone-receptor-negative-invasive-breast-carcinomas-correlation-with-histological-and-molecular-subtypes
#2
Donata Micello, Alberto Bossi, Alessandro Marando, Emanuele Dainese, Fausto Sessa, Carlo Capella
Calretinin expression has been reported in neoplasms arising in various organs, including the breast. We investigated the relationship of calretinin expression with different histological and molecular subtypes of invasive breast carcinomas (IBCs) and its prognostic significance in high-grade female hormone receptor-negative IBCs. A total of 196 cases of IBCs of different histological subtypes were analyzed for immunohistochemical expression of calretinin, human epidermal growth factor receptor 2 (HER2), basal-like (BL), apocrine, and proliferative markers and grouped in different molecular subtypes...
May 26, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28550415/high-expression-of-grp78-bip-as-a-novel-predictor-of-favorable-outcomes-in-patients-with-advanced-thymic-carcinoma
#3
Yosuke Miura, Kyoichi Kaira, Reiko Sakurai, Hisao Imai, Yoshio Tomizawa, Noriaki Sunaga, Koichi Minato, Takeshi Hisada, Tetsunari Oyama, Masanobu Yamada
BACKGROUND: Glucose-regulated protein (GRP) 78/immunoglobulin heavy chain binding protein (BiP) is a member of the endoplasmic reticulum chaperone family, and its role in various types of human malignancies has recently been investigated. However, the clinicopathological characteristics of GRP78/BiP in advanced thymic carcinoma (ATC) remain unknown. We aimed to examine the relationship between GRP78/BiP expression and the clinical outcomes of ATC patients. METHODS: Thirty-four patients with ATC receiving combination chemotherapy at three institutions between April 1998 and April 2014 were enrolled in this study...
May 26, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28550267/amyloid-precursor-protein-haploinsufficiency-preferentially-mediates-brain-iron-accumulation-in-mice-transgenic-for-the-huntington-s-disease-mutation
#4
Kiersten Berggren, Sonal Agrawal, Julia A Fox, Justin Hildenbrand, Ryan Nelson, Ashley I Bush, Jonathan H Fox
BACKGROUND: Huntington's disease (HD) is an autosomal dominant disorder caused by a CAG expansion in the huntingtin gene that results in expression of mutant huntingtin protein. Iron accumulates in HD brain neurons. Amyloid precursor protein (APP) promotes neuronal iron export. However, the role of APP in brain iron accumulation in HD is unclear. OBJECTIVE: To determine the effects of APP insufficiency on HD in YAC128 mice. METHODS: We crossed APP hemizygous mice (APP+/-) with YAC128 mice that are transgenic (Tg) for human mutant huntingtin (hmHTT) to generate APP+/+ hmHTT-/-, APP+/- hmHTT-/-, APP+/+ hmHTT+/- and APP+/- hmHTT+/- progeny...
May 24, 2017: Journal of Huntington's Disease
https://www.readbyqxmd.com/read/28550180/a-novel-de-novo-mutation-in-prkag2-gene-infantile-onset-phenotype-and-signaling-pathway-involved
#5
Yanchun Xu, Alex Gray, David Grahame Hardie, Alper Uzun, Sunil Shaw, James F Padbury, Chanika Phornphutkul, Yi-Tang Tseng
PRKAG2 encodes the γ2-subunit isoform of the 5' AMP-activated protein kinase (AMPK), a heterotrimeric enzyme with major roles in regulation of energy metabolism in response to cellular stress. Mutations in PRKAG2 have been implicated in a unique hypertrophic cardiomyopathy (HCM) characterized by cardiac glycogen overload, ventricular preexcitation and hypertrophy. We identified a novel, de novo PRKAG2 mutation (K475E) in a neonate with prenatal onset of HCM. We aimed to investigate the cellular impact, signaling pathways involved and therapeutic options for K475E mutation using cells stably expressing human wild type (WT) or the K475E mutant...
May 26, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28550046/genome-instability-a-conserved-mechanism-of-ageing
#6
REVIEW
Jan Vijg, Xiao Dong, Brandon Milholland, Lei Zhang
DNA is the carrier of genetic information and the primary template from which all cellular information is ultimately derived. Changes in the DNA information content through mutation generate diversity for evolution through natural selection but are also a source of deleterious effects. It has since long been hypothesized that mutation accumulation in somatic cells of multicellular organisms could causally contribute to age-related cellular degeneration and death. Assays to detect different types of mutations, from base substitutions to large chromosomal aberrations, have been developed and show unequivocally that mutations accumulate in different tissues and cell types of ageing humans and animals...
May 26, 2017: Essays in Biochemistry
https://www.readbyqxmd.com/read/28550023/the-super-study-protocol-for-a-randomised-controlled-trial-comparing-follicle-stimulating-hormone-and-clomiphene-citrate-for-ovarian-stimulation-in-intrauterine-insemination
#7
N A Danhof, M van Wely, Cam Koks, J Gianotten, J P de Bruin, B J Cohlen, D P van der Ham, N F Klijn, Mha van Hooff, Fjm Broekmans, K Fleischer, Cah Janssen, J M Rijn van Weert, J van Disseldorp, M Twisk, M Traas, Mfg Verberg, M J Pelinck, J Visser, Dam Perquin, DES Boks, H R Verhoeve, C F van Heteren, Bwj Mol, S Repping, F van der Veen, M H Mochtar
OBJECTIVE: To study the effectiveness of four cycles of intrauterine insemination (IUI) with ovarian stimulation (OS) by follicle-stimulating hormone (FSH) or by clomiphene citrate (CC), and adherence to strict cancellation criteria. SETTING: Randomised controlled trial among 22 secondary and tertiary fertility clinics in the Netherlands. PARTICIPANTS: 732 women from couples diagnosed with unexplained or mild male subfertility and an unfavourable prognosis according to the model of Hunault of natural conception...
May 25, 2017: BMJ Open
https://www.readbyqxmd.com/read/28549989/overweight-in-elderly-people-induces-impaired-autophagy-in-skeletal-muscle
#8
Yaiza Potes, Beatriz de Luxán-Delgado, Susana Rodriguez-González, Marcela Rodrigues Moreira Guimarães, Juan J Solano, María Fernández-Fernández, Manuel Bermúdez, Jose A Boga, Ignacio Vega-Naredo, Ana Coto-Montes
Sarcopenia is the gradual loss of skeletal muscle mass, strength and quality associated with aging. Changes in body composition, especially in skeletal muscle and fat mass are crucial steps in the development of chronic diseases. We studied the effect of overweight on skeletal muscle tissue in elderly people without reaching obesity to prevent this extreme situation. Overweight induces a progressive protein breakdown reflected as a progressive withdrawal of anabolism against the promoted catabolic state leading to muscle wasting...
May 23, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28549401/human-in-situ-cytokine-and-leukocyte-responses-to-acute-smoking
#9
Tegan Kastelein, Rob Duffield, Frank Marino
This study examined immune/inflammatory parameters following an acute tobacco smoking episode in smokers with varying smoking histories. Twenty-eight male habitual smokers were categorized according to smoking history, e.g. younger smoker (YSM) or middle-aged smoker (MSM). Participants were matched for fitness and smoking habits and following baseline testing, undertook a smoking protocol involving consumption of two cigarettes within 15 min. Venous blood was collected pre- and immediately, 1 h, and 4 h post-protocol to permit analyses of circulating levels of interleukin (IL)-6, IL-1β, IL-1ra, monocyte chemoattractant protein-1 (MCP-1), C-reactive protein (CRP), and leukocytes...
December 2017: Journal of Immunotoxicology
https://www.readbyqxmd.com/read/28549092/the-effect-of-spectacle-lenses-containing-peripheral-defocus-on-refractive-error-and-horizontal-eye-shape-in-the-guinea-pig
#10
Hannah E Bowrey, Guang Zeng, Dennis Y Tse, Amelia J Leotta, Yi Wu, Chi-Ho To, Christine F Wildsoet, Sally A McFadden
Purpose: It has been proposed that the peripheral retina, responding to local optical defocus, contributes to myopia and associated altered eye growth in humans. To test this hypothesis, we measured the changes in central (on-axis) and peripheral ocular dimensions in guinea pigs wearing a concentric bifocal spectacle lens design with power restricted to the periphery. Methods: Five groups of guinea pigs (n = 83) wore either a unifocal (UF) spectacle lens (-4, 0, or +4 Diopters [D]), or a peripheral defocus (PF) spectacle lens that had a plano center (diameter of 5 mm) with either -4 or +4 D in the surround (-4/0 or +4/0 D)...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28549083/a-comparison-of-two-mouse-frailty-assessment-tools
#11
Alice E Kane, Aniko Huizer-Pajkos, John Mach, Sarah J Mitchell, Rafael de Cabo, David G Le Couteur, Susan E Howlett, Sarah N Hilmer
The mouse clinical frailty index and the mouse frailty phenotype assessment are two recently developed tools used to assess frailty in mice. The objectives of this study were to investigate whether the same mice are identified as frail with both tools and to examine the association of each of the assessment tools with age and frailty-related outcomes. Frailty was measured using both tools in old (~24 months; n = 36) C57BL/6 male mice. After 2 weeks, blood pressure and heart rate were measured and serum samples were collected for analysis of alanine aminotransferase, creatinine, and albumin levels...
May 26, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28549078/herod-a-human-ethnic-and-regional-specific-omics-database
#12
Xian Zeng, Lin Tao, Zhang Peng, Chu Qin, Shangying Chen, Weidong He, Ying Tan, Hong Xia Liu, Sheng Yong Yang, Zhe Chen, Yu Yang Jiang, Yu Zong Chen
Motivation: Genetic and gene expression variations within and between populations and across geographical regions have substantial effects on the biological phenotypes, diseases, and therapeutic response. The development of precision medicines can be facilitated by the OMICS studies of the patients of specific ethnicity and geographic region. However, there is an inadequate facility for broadly and conveniently accessing the ethnic and regional specific OMICS data. Results: Here, we introduced a new free database, HEROD, a human ethnic and regional specific OMICS database...
May 26, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28548897/evening-light-exposure-to-computer-screens-disrupts-human-sleep-biological-rhythms-and-attention-abilities
#13
A Green, M Cohen-Zion, A Haim, Y Dagan
The use of electronic devices with light-emitting screens has increased exponentially in the last decade. As a result, humans are almost continuously exposed to unintentional artificial light. We explored the independent and combined effects of two aspects of screen illumination, light wavelength, and intensity, on sleep, its biological regulation, and related functional outcomes. The 2 × 2 repeated-measure design included two independent variables: screen light intensity (low ([LI] versus high [HI]) and wavelength (short [SWL] versus long [LWL])...
May 26, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28548648/electronic-retinal-implants-and-artificial-vision-journey-and-present
#14
REVIEW
J O Mills, A Jalil, P E Stanga
Retinitis pigmentosa and age-related macular degeneration are two significant causes of severe visual dysfunction. In both, the retinal photoreceptors degenerate, preventing successful conversion of light into electrical energy that is interpreted in the visual cortex as visual function. Artificial vision or visual function began over two centuries ago with the idea of creating artificial light pulses, or phosphenes, through cortical stimulation. The pursuit is now on to improve artificial visual function. Two retinal implants appear the most likely to succeed in the future having undergone multicentre human trials: the Argus II electronic epiretinal device (Second Sight Medical Products, CA, USA) and Alpha-IMS electronic subretinal device (Retina Implant AG, Germany)...
May 26, 2017: Eye
https://www.readbyqxmd.com/read/28548641/human-papillomavirus-type-16-l2-dna-methylation-in-exfoliated-cervical-cells-from-college-age-women-erratum
#15
(no author information available yet)
No abstract text is available yet for this article.
April 2017: Journal of Lower Genital Tract Disease
https://www.readbyqxmd.com/read/28548250/evolution-of-deep-gray-matter-volume-across-the-human-lifespan
#16
Karl Narvacan, Sarah Treit, Richard Camicioli, Wayne Martin, Christian Beaulieu
Magnetic resonance imaging of subcortical gray matter structures, which mediate behavior, cognition and the pathophysiology of several diseases, is crucial for establishing typical maturation patterns across the human lifespan. This single site study examines T1-weighted MPRAGE images of 3 healthy cohorts: (i) a cross-sectional cohort of 406 subjects aged 5-83 years; (ii) a longitudinal neurodevelopment cohort of 84 subjects scanned twice approximately 4 years apart, aged 5-27 years at first scan; and (iii) a longitudinal aging cohort of 55 subjects scanned twice approximately 3 years apart, aged 46-83 years at first scan...
May 26, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28548243/cross-reactive-saliva-iga-antibodies-to-oxidized-ldl-and-periodontal-pathogens-in-humans
#17
Ramin Akhi, Chunguang Wang, Mikael Kyrklund, Outi Kummu, S Pauliina Turunen, Kati Hyvärinen, Arja Kullaa, Tuula Salo, Pirkko J Pussinen, Sohvi Hörkkö
AIM: Oxidized Low-Density Lipoproteins (oxLDL) are formed as a result of lipid peroxidation and are highly immunogenic and proatherogenic. In this study, saliva antibodies binding to oxLDL, Porphyromonas gingivalis (Pg) and Aggregatibacter actinomycetemcomitans (Aa), were characterized and their cross reactivity was evaluated. MATERIAL & METHODS: Resting and stimulated saliva samples were collected from 36 healthy adults (mean age 26 years). Saliva IgA, IgG and IgM autoantibody levels to copper oxidized LDL (CuOx-LDL) and malondialdehyde acetaldehyde modified LDL (MAA-LDL), were determined with chemiluminescence immunoassay...
May 26, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28547865/re-imagining-alzheimer-s-disease-the-diminishing-importance-of-amyloid-and-a-glimpse-of-what-lies-ahead
#18
REVIEW
Kai-Hei Tse, Karl Herrup
Many have criticized the amyloid cascade hypothesis of Alzheimer's disease for its inconsistencies and failures to either accurately predict disease symptoms or guide the development of productive therapies. In addition to criticisms, however, we believe that the field would benefit from having alternative narratives and disease models that can either replace or function alongside of an amyloid-centric view of Alzheimer's. This review is an attempt to meet that need. We offer three experimentally verified amyloid-independent mechanisms, each of which plausibly contributes substantially to the etiology of Alzheimer's disease: loss of DNA integrity, faulty cell cycle regulation, regression of myelination...
May 26, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28547808/cytokine-response-in-crimean-congo-hemorrhagic-fever-virus-infection
#19
Önder Ergönül, Ceren Şeref, Şebnem Eren, Aysel Çelikbaş, Nurcan Baykam, Başak Dokuzoğuz, Mehmet Gönen, Füsun Can
BACKGROUND: We described the predictive role of cytokines in fatality of Crimean Congo Hemorrhagic Fever Virus (CCHFV) infection by using daily clinical sera samples. METHODS: Consequent serum samples of the selected patients in different severity groups and healthy controls were examined by using human cytokine 17-plex assay. RESULTS: We included 12(23%) mild, 30(58%) moderate, 10(19%) severe patients, and 10 healthy volunteers. The mean age of the patients was 52 (sd 15), 52% were female...
May 26, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28547525/neoadjuvant-chemotherapy-with-trastuzumab-docetaxel-and-carboplatin-administered-every-3%C3%A2-weeks-for-japanese-women-with-her2-positive-primary-breast-cancer-efficacy-and-safety
#20
Ikuko Sugitani, Shigeto Ueda, Takashi Sakurai, Takashi Shigekawa, Eiko Hirokawa, Hiroko Shimada, Hideki Takeuchi, Kazuo Matsuura, Misono Misumi, Nobuko Fujiuchi, Takao Takahashi, Takahiro Hasebe, Akihiko Osaki, Toshiaki Saeki
BACKGROUND: This phase II neoadjuvant study evaluated the efficacy and safety of a triweekly regimen of docetaxel and carboplatin in combination with trastuzumab (TCbH) in Japanese women with human epidermal growth factor receptor type2 (HER2)-positive primary breast cancer. METHODS: Patients with HER2-positive, stage I-III invasive breast cancer received six courses of trastuzumab (8 mg/kg loading dose, then 6 mg/kg, day 1), docetaxel (75 mg/m(2), day 1), and carboplatin (area under the curve: 6, day 1) every 3 weeks...
May 25, 2017: International Journal of Clinical Oncology
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