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https://www.readbyqxmd.com/read/28105960/accuracy-of-prenatal-ultrasound-in-detecting-growth-abnormalities-in-triplets-a-retrospective-cohort-study
#1
Cameron Sklar, Maryna Yaskina, Sue Ross, Kentia Naud
Significant management decisions in triplet pregnancies are made based mainly on ultrasound measurements of fetal growth, although there is a paucity of data examining the accuracy of fetal weight measurements in these gestations. To evaluate accuracy of prenatal ultrasound to diagnose growth abnormalities (intrauterine growth restriction, severe growth discordance) in triplet pregnancies, a retrospective cohort study of 78 triplet pregnancies (234 fetuses) delivered at a single tertiary hospital from January 2004 to May 2015 was performed...
February 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28074330/comparison-of-core-needle-biopsy-and-excision-specimens-for-the-accurate-evaluation-of-breast-cancer-molecular-markers-a-report-of-1003-cases
#2
Jie Chen, Zu Wang, Qing Lv, Zhenggui Du, Qiuwen Tan, Di Zhang, Bingjun Xiong, Helin Zeng, Juxiang Gou
In this study, we compared the accuracy of marker evaluation in core needle biopsy (CNB) specimens versus excision specimens (ESs) from breast cancer patients. This retrospective study used data collected from the breast cancer database at the West China Hospital, China. Immunohistochemistry (IHC) results from CNB specimens and ESs were compared, using estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor 2 (HER2), and Ki-67 as markers. Molecular subtyping and endocrine therapy usage correlations based on CNB samples and ESs were evaluated...
January 10, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28060197/identical-twins-discordant-for-metopic-craniosynostosis-evidence-of-epigenetic-influences
#3
Suresh N Magge, Kendall Snyder, Aparna Sajja, Tiffani A DeFreitas, Sean E Hofherr, Richard E Broth, Robert F Keating, Gary F Rogers
Craniosynostosis, or premature fusion of the cranial sutures, occurs in approximately 1 in 2500 live births. The genetic causes and molecular basis of these disorders have greatly expanded over the last 2 decades, with numerous causative and contributory mutations having been identified. The role of fibroblast growth factor receptor (FGFR) mutations in the etiology of certain eponymous forms of craniosynostosis is now well elucidated; the most common syndromes associated with craniosynostosis are Pfeifer (FGFR1, FGFR2), Apert (FGFR2), Crouzon (FGFR2), Saethre-Chotzen (TWIST1), Jackson-Weiss (FGFR2), Greig (GL13), and Muenke (FGFR3) syndromes...
January 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28056797/comparative-proteomic-analysis-reveals-a-dynamic-pollen-plasma-membrane-protein-map-and-the-membrane-landscape-of-receptor-like-kinases-and-transporters-important-for-pollen-tube-growth-and-interaction-with-pistils-in-rice
#4
Ning Yang, Tai Wang
BACKGROUND: The coordination of pollen tube (PT) growth, guidance and timely growth arrest and rupture mediated by PT-pistil interaction is crucial for the PT to transport sperm cells into ovules for double fertilization. The plasma membrane (PM) represents an important interface for cell-cell interaction, and PM proteins of PTs are pioneers for mediating PT integrity and interaction with pistils. Thus, understanding the mechanisms underlying these events is important for proteomics. RESULTS: Using the efficient aqueous polymer two-phase system and alkali buffer treatment, we prepared high-purity PM from mature and germinated pollen of rice...
January 5, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28053626/expression-of-t-lymphocyte-markers-in-human-epidermal-growth-factor-receptor-2-positive-breast-cancer
#5
Changro Lee, Seho Park, Joo Heung Kim, Sung Mook Lim, Hyung Seok Park, Seung Il Kim, Byeong-Woo Park
PURPOSE: The present study aimed to examine the clinical implications of CD4, CD8, and FOXP3 expression on the prognosis of human epidermal growth factor receptor 2 (HER2)-positive breast cancer using a web-based database, and to compare the immunohistochemical expression of T-lymphocyte markers using primary and metastatic HER2-positive tumor tissues before and after HER2-targeted therapy. METHODS: Using the cBioPortal for Cancer Genomics and Kaplan-Meier plotter, the mRNA expression, association between T-lymphocyte markers, and survival in HER2-positive cancers were investigated according to various cutoff levels...
December 2016: Journal of Breast Cancer
https://www.readbyqxmd.com/read/28052766/biopsy-of-breast-cancer-metastases-patient-characteristics-and-survival
#6
Shlomit Strulov Shachar, Tanya Mashiach, Georgeta Fried, Karen Drumea, Noa Shafran, Hyman B Muss, Gil Bar-Sela
BACKGROUND: Discordance in hormone receptors (HR) and human epidermal growth factor receptor 2 (HER2) status between primary tumors and metastatic sites for breast cancer is well established. However, it is uncertain which patient-related factors lead to biopsy when metastases are suspected and whether having a biopsy impacts survival. METHODS: The medical charts of metastatic breast cancer (MBC) patients diagnosed January 2000-August 2014 were retrospectively reviewed...
January 4, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28027312/the-subclonal-architecture-of-metastatic-breast-cancer-results-from-a-prospective-community-based-rapid-autopsy-program-cascade
#7
Peter Savas, Zhi Ling Teo, Christophe Lefevre, Christoffer Flensburg, Franco Caramia, Kathryn Alsop, Mariam Mansour, Prudence A Francis, Heather A Thorne, Maria Joao Silva, Nnennaya Kanu, Michelle Dietzen, Andrew Rowan, Maik Kschischo, Stephen Fox, David D Bowtell, Sarah-Jane Dawson, Terence P Speed, Charles Swanton, Sherene Loi
BACKGROUND: Understanding the cancer genome is seen as a key step in improving outcomes for cancer patients. Genomic assays are emerging as a possible avenue to personalised medicine in breast cancer. However, evolution of the cancer genome during the natural history of breast cancer is largely unknown, as is the profile of disease at death. We sought to study in detail these aspects of advanced breast cancers that have resulted in lethal disease. METHODS AND FINDINGS: Three patients with oestrogen-receptor (ER)-positive, human epidermal growth factor receptor 2 (HER2)-negative breast cancer and one patient with triple negative breast cancer underwent rapid autopsy as part of an institutional prospective community-based rapid autopsy program (CASCADE)...
December 2016: PLoS Medicine
https://www.readbyqxmd.com/read/28013534/kras-mutation-test-in-korean-patients-with-colorectal-carcinomas-a-methodological-comparison-between-sanger-sequencing-and-a-real-time-pcr-based-assay
#8
Sung Hak Lee, Arthur Minwoo Chung, Ahwon Lee, Woo Jin Oh, Yeong Jin Choi, Youn-Soo Lee, Eun Sun Jung
BACKGROUND: Mutations in the KRAS gene have been identified in approximately 50% of colorectal cancers (CRCs). KRAS mutations are well established biomarkers in anti-epidermal growth factor receptor therapy. Therefore, assessment of KRAS mutations is needed in CRC patients to ensure appropriate treatment. METHODS: We compared the analytical performance of the cobas test to Sanger sequencing in 264 CRC cases. In addition, discordant specimens were evaluated by 454 pyrosequencing...
January 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28005033/-infective-endocarditis-importance-of-molecular-biological-techniques-in-etiological-diagnosis
#9
E O Kotova, E A Domonova, Yu L Karaulova, A S Mil'to, A S Pisaryuk, O Yu Sil'veistrova, O Yu Shipulina, G A Shipulin, V S Moiseev
AIM: To investigate the specific features of conventional bacteriological methods and current molecular biological techniques for the etiological diagnosis of infective endocarditis (IE). SUBJECTS AND METHODS: Examinations were made in 53 patients treated at City Clinical Hospital Sixty-Four, Moscow Healthcare Department, in 2012-2015 who underwent simultaneous bacteriological and molecular biological (polymerase chain reaction (PCR) or PCR with further sequencing) examinations of blood or resected cardiac valve tissues...
2016: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/27994991/dynamics-of-a-pregnancy-when-two-become-four-a-case-report-and-literature-review
#10
Murid Javed, Nareman Altorairi, Hamad Alsufyan
The incidence of pregnancies with multiple gestational sacs has increased with the use of assisted reproductive technology because more than one embryo is frequently transferred. The splitting of one or more embryos further complicates the pregnancy. Some of these complications include intrauterine fetal death, growth restriction, discordant birth weight, and preterm delivery. Monozygotic twins suffer from a few unique complications including twin-twin transfusion syndrome, twin reversed arterial perfusion sequence, and twin anemia-polycythemia sequence...
November 11, 2016: Curēus
https://www.readbyqxmd.com/read/27885296/outcome-of-twin-deliveries-at-a-tertiary-care-centre-of-eastern-nepal
#11
S Chaudhary, R R Singh, G S Shah, J Agrawal, S Kafle, L Shah
BACKGROUND: Twins, compared to singletons, have higher perinatal mortality and morbidity. The aim of this study was to describe the twinning rate, epidemiological variables and hospital outcome of twin deliveries and to find out ways of better management of twins in our part. METHODS: A retrospective evaluation of the outcome of 92 twin pregnancies during one year study period (1st January 2014 to 31st December 2014) was conducted at BPKIHS. Twins delivered within the institution were included but cases less than 28 weeks gestation were excluded...
May 2016: Journal of Nepal Health Research Council
https://www.readbyqxmd.com/read/27862520/medullary-bone-in-fossils-function-evolution-and-significance-in-growth-curve-reconstructions-of-extinct-vertebrates
#12
REVIEW
E Prondvai
Medullary bone (MB) is a special endosteal tissue forming in the bones of female birds during egg laying to serve as a labile calcium reservoir for building the hard eggshell. Therefore, the presence of MB reported in multiple nonavian dinosaurs is currently considered as evidence that those specimens were sexually mature females in their reproductive period. This interpretation has led to further inferences on species-specific growth strategies and related life-history aspects of these extinct vertebrates...
November 18, 2016: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/27859836/outcome-in-monochorionic-twin-pregnancies-with-selective-intrauterine-growth-restriction-according-to-the-umbilical-artery-doppler-pattern-of-the-smaller-twin-a-systematic-review-and-meta-analysis
#13
REVIEW
Danilo Buca, Giorgio Pagani, Giuseppe Rizzo, Alessandra Familiari, Maria Elena Flacco, Lamberto Manzoli, Marco Liberati, Francesco Fanfani, Giovanni Scambia, Francesco D'Antonio
OBJECTIVE: To explore the outcome of monochorionic (MC) twin pregnancies affected by selective intra-uterine growth restriction (sIUGR) according to the umbilical artery Doppler pattern of the smaller twin. METHODS: Medline, Embase, Cinhal and ClinicalTrials.gov databases (2000-2016) were searched. sIUGR was defined as the presence of one twin with estimated fetal weight and/or abdominal circumference less than 10(th) or 5(th) percentile and classified according to the umbilical artery Doppler flow pattern of the smaller twin (type I: persistently positive, type II: persistently absent/reversed, type III: intermittently absent/reversed)...
November 18, 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27854393/birth-weight-in-live-births-and-stillbirths
#14
L C Y Poon, M Y Tan, G Yerlikaya, A Syngelaki, K H Nicolaides
OBJECTIVE: To establish a normal range of birth weights for gestational age at delivery and to compare the proportion of live births and stillbirths that are classified as small-for-gestational age (SGA) according to our normal range vs that of the INTERGROWTH-21(st) standard. METHODS: The study population comprised 113 019 live births and 437 (0.4%) stillbirths. The inclusion criterion for establishing a normal range of birth weights for gestational age was the live birth of a phenotypically normal neonate ≥ 24 weeks' gestation and the exclusion criteria were smoking and prepregnancy hypertension, diabetes mellitus, systemic lupus erythematosus or antiphospholipid syndrome, pre-eclampsia, gestational hypertension, gestational diabetes mellitus or iatrogenic preterm birth for fetal growth restriction in the current pregnancy...
November 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27848393/comparison-of-rat-and-rabbit-embryo-fetal-developmental-toxicity-data-for-379-pharmaceuticals-on-the-nature-and-severity-of-developmental-effects
#15
Peter T Theunissen, Sonja Beken, Bruce K Beyer, William J Breslin, Gregg D Cappon, Connie L Chen, Gary Chmielewski, Luc De Schaepdrijver, Brian Enright, Jennifer E Foreman, Wafa Harrouk, Kok-Wah Hew, Alan M Hoberman, Julia Y Hui, Thomas B Knudsen, Susan B Laffan, Susan L Makris, Matt Martin, Mary Ellen McNerney, Christine L Siezen, Dinesh J Stanislaus, Jane Stewart, Kary E Thompson, Belen Tornesi, Jan Willem Van der Laan, Gerhard F Weinbauer, Sandra Wood, Aldert H Piersma
Regulatory non-clinical safety testing of human pharmaceuticals typically requires embryo-fetal developmental toxicity (EFDT) testing in two species (one rodent and one non-rodent). The question has been raised whether under some conditions EFDT testing could be limited to one species, or whether the testing in a second species could be decided on a case-by-case basis. As part of a consortium initiative, we built and queried a database of 379 compounds with EFDT studies (in both rat and rabbit animal models) conducted for marketed and non-marketed pharmaceuticals for their potential for adverse developmental and maternal outcomes, including EFDT incidence and the nature and severity of adverse findings...
November 2016: Critical Reviews in Toxicology
https://www.readbyqxmd.com/read/27847254/vascular-calcification-in-ckd-mbd-roles-for-phosphate-fgf23-and-klotho
#16
REVIEW
Shunsuke Yamada, Cecilia M Giachelli
Vascular calcification (VC) is highly prevalent in aging, diabetes mellitus, and chronic kidney disease (CKD). VC is a strong predictor of cardiovascular morbidity and mortality in the CKD population. Complex pathological mechanisms are involved in the development of VC, including osteochondrogenic differentiation and apoptosis of vascular smooth muscle cells, instability and release of extracellular vesicles loaded calcium and phosphate, and elastin degradation. Elevated serum phosphate is a late manifestation of CKD, and has been shown to accelerate mineral deposition in both the vessel wall and heart valves...
November 12, 2016: Bone
https://www.readbyqxmd.com/read/27780543/discordance-of-cord-insertions-as-a-predictor-of-discordant-fetal-growth-in-monochorionic-twins
#17
Olivia Cambiaso, De-Peng Zhao, Jose I Abasolo, Horacio A Aiello, Dick Oepkes, Enrico Lopriore, Lucas Otaño
INTRODUCTION: The type of cord insertion within monochorionic twin pairs could be different. The purpose of study is to evaluate the association of different combinations of placental umbilical cord insertions with birth weight discordance in a large cohort of monochorionic twins. METHODS: All consecutive monochorionic placentas from either uncomplicated twin pregnancies or with fetal weight discordance examined and injected with color dye at our centers were included in this study (n = 374)...
November 2016: Placenta
https://www.readbyqxmd.com/read/27773498/comparative-pharmacodynamics-of-four-different-carbapenems-in-combination-with-polymyxin-b-against-carbapenem-resistant-acinetobacter-baumannii
#18
Justin R Lenhard, Jonathan S Gall, Jurgen B Bulitta, Visanu Thamlikitkul, Cornelia B Landersdorfer, Alan Forrest, Roger L Nation, Jian Li, Brian T Tsuji
The objective of this study was to determine the comparative pharmacodynamics of four different carbapenems in combination with polymyxin B (PMB) against carbapenem-resistant Acinetobacter baumannii isolates using time-kill experiments at two different inocula. Two A. baumannii strains (03-149-1 and N16870) with carbapenem minimum inhibitory concentrations (MICs) ranging from 8 to 64 mg/L were investigated in 48-h time-kill experiments using starting inocula of 10(6) CFU/mL and 10(8) CFU/mL. Concentration arrays of ertapenem, doripenem, meropenem and imipenem at 0...
December 2016: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/27766549/daily-life-reflections-of-acromegaly-guidelines
#19
T Apaydin, H M Ozkaya, F E Keskin, O A Haliloglu, K Karababa, S Erdem, P Kadioglu
PURPOSE: To determine the differences in acromegaly diagnosis, treatment, and follow-up among Turkish endocrinologists, and to investigate how the published guidelines are applied in clinical practice. METHODS: The questionnaire was formatted as an electronic survey, conducted between November and December 2015, and sent weekly for 6 weeks via e-mail to 528 endocrinologists in Turkey. RESULTS: The questionnaire was answered by 37.4 % of endocrinologists...
October 20, 2016: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/27764697/prognostic-impact-of-her2-and-er-status-of-circulating-tumor-cells-in-metastatic-breast-cancer-patients-with-a-her2-negative-primary-tumor
#20
Nick Beije, Wendy Onstenk, Jaco Kraan, Anieta M Sieuwerts, Paul Hamberg, Luc Y Dirix, Anja Brouwer, Felix E de Jongh, Agnes Jager, Caroline M Seynaeve, Ngoc M Van, John A Foekens, John W M Martens, Stefan Sleijfer
BACKGROUND: Preclinical and clinical studies have reported that human epidermal growth factor receptor 2 (HER2) overexpression yields resistance to endocrine therapies. Here the prevalence and prognostic impact of HER2-positive circulating tumor cells (CTCs) were investigated retrospectively in metastatic breast cancer (MBC) patients with a HER2-negative primary tumor receiving endocrine therapy. Additionally, the prevalence and prognostic significance of HER2-positive CTCs were explored in a chemotherapy cohort, as well as the prognostic impact of the estrogen receptor (ER) CTC status in both cohorts...
October 17, 2016: Neoplasia: An International Journal for Oncology Research
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