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https://www.readbyqxmd.com/read/28934847/participation-of-ccl1-in-snail-positive-fibroblasts-in-colorectal-cancer-contribute-to-5-fluorouracil-paclitaxel-chemoresistance
#1
Ziqian Li, Kaying Chan, Yifei Qi, Linlin Lu, Fen Ning, Mengling Wu, Yuan Wang, Shaohui Cai, Jun Du
Purpose: Cancer-associated fibroblasts (CAFs) activated by cancer cells has a central role in development and malignant biological behavior in colorectal cancer (CRC). Adult fibroblasts do not express Snail, but Snail-positive fibroblasts are discovered in the stroma of malignant CRC and reported to be the key role to chemoresistance. However, the reciprocal effect of CAFs expressed Snail to chemoresistance on CRC cells and the underlying molecular mechanisms are not fully characterized...
September 18, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28934384/short-syndrome-due-to-a-novel-de-novo-mutation-in-prkce-protein-kinase-c%C3%A9-impairing-torc2-dependent-akt-activation
#2
Diana Alcantara, Frances Elmslie, Martine Tetreault, Eric Bareke, Taila Hartley, Jacek Majewski, Kym Boycott, A Micheil Innes, David A Dyment, Mark O'Driscoll
SHORT syndrome is a rare, recognizable syndrome resulting from heterozygous mutations in PIK3R1 encoding a regulatory subunit of phosphoinositide-3-kinase (PI3K). The condition is characterized by short stature, intrauterine growth restriction, lipoatrophy and a facial gestalt involving a triangular face, deep set eyes, low hanging columella and small chin. PIK3R1 mutations in SHORT syndrome result in reduced signaling through the PI3K-AKT-mTOR pathway. We performed whole exome sequencing for an individual with clinical features of SHORT syndrome but negative for PIK3R1 mutation and her parents...
October 1, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28934247/the-extent-of-intrauterine-growth-restriction-determines-the-severity-of-cerebral-injury-and-neurobehavioural-deficits-in-rodents
#3
Crystal A Ruff, Stuart D Faulkner, Prakasham Rumajogee, Stephanie Beldick, Warren Foltz, Jennifer Corrigan, Alfred Basilious, Shangjun Jiang, Shanojan Thiyagalingam, Jerome Y Yager, Michael G Fehlings
BACKGROUND: Cerebral Palsy (CP) is the most common physical pediatric neurodevelopmental disorder and spastic diplegic injury is its most frequent subtype. CP results in substantial neuromotor and cognitive impairments that have significant socioeconomic impact. Despite this, its underlying pathophysiological mechanisms and etiology remain incompletely understood. Furthermore, there is a need for clinically relevant injury models, which a) reflect the heterogeneity of the condition and b) can be used to evaluate new translational therapies...
2017: PloS One
https://www.readbyqxmd.com/read/28933358/substrate-deprivation-therapy-to-reduce-glycosaminoglycan-synthesis-improves-aspects-of-neurological-and-skeletal-pathology-in-mps-i-mice
#4
Ainslie L K Derrick-Roberts, Matilda R Jackson, Carmen E Pyragius, Sharon Byers
Mucopolysaccharidosis type I (MPS I) is the most common form of the MPS group of genetic diseases. MPS I results from a deficiency in the lysosomal enzyme α-l-iduronidase, leading to accumulation of undegraded heparan and dermatan sulphate glycosaminoglycan (GAG) chains in patient cells. MPS children suffer from multiple organ failure and die in their teens to early twenties. In particular, MPS I children also suffer from profound mental retardation and skeletal disease that restricts growth and movement. Neither brain nor skeletal disease is adequately treated by current therapy approaches...
February 23, 2017: Diseases (Basel)
https://www.readbyqxmd.com/read/28931674/natural-reassortants-between-potentially-zoonotic-avian-influenza-viruses-h5n1-and-h9n2-from-egypt-display-distinct-pathogenic-phenotypes-in-experimentally-infected-chickens-and-ferrets
#5
Mahmoud M Naguib, Reiner Ulrich, Elisa Kasbohm, Christine L P Eng, Donata Hoffmann, Christian Grund, Martin Beer, Timm C Harder
Co-circulation of zoonotic highly pathogenic avian influenza virus (HPAIV) H5N1 and AIV of subtype H9N2 among poultry in Egypt for at least six years should render this country a hypothetical hotspot for the emergence of reassortant, phenotypically altered viruses, yet no reassortants have been detected in Egypt. The present investigations proved that reassortants between Egyptian H5N1 clade 2.2.1.2 and H9N2 of the G1-B lineage can be generated by co-amplification in embryonated chicken eggs. Reassortants were restricted to the H5N1 subtype and had acquired between two and all six of the internal segments of the H9N2 virus...
September 20, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28931545/regulation-of-genes-related-to-cholesterol-metabolism-in-rainbow-trout-oncorhynchus-mykiss-fed-plant-based-diet
#6
Tengfei Zhu, Genevieve Corraze, Elisabeth Plagnes-Juan, Edwige Quillet, Mathilde Dupont-Nivet, Sandrine Skiba-Cassy
Compared to fishmeal and fish oil, plant ingredients differ not only in the protein content, amino acid and fatty acid profiles but are also devoid of cholesterol, the major component of cell membrane and precursor of several bioactive compounds. Based on these nutritional characteristics, plant-based diets can affect fish physiology and cholesterol metabolism. In order to investigate the mechanisms underlying cholesterol homeostasis, rainbow trout were fed from 1g body weight during six months with a totally plant-based diet (V), a marine diet (M) and a marine restricted diet (MR) with feed intake adjusted to that of the V group...
September 20, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28930491/fetal-and-infant-growth-patterns-and-risk-of-lower-lung-function-and-asthma-the-generation-r-study
#7
Herman T den Dekker, Vincent W V Jaddoe, Irwin K Reiss, Johan C de Jongste, Liesbeth Duijts
BACKGROUND: Children with lower birth weight are at increased risk of asthma symptoms. We examined associations of fetal and infant growth with childhood lung function and asthma. METHODS: This study was embedded in a population-based prospective cohort study among 5,635children. Growth was estimated by repeated ultrasounds in 2nd and 3th trimester, and measured at birth and at 3, 6 and 12 months. At age 10 years, spirometry was performed and asthma was assessed by parental questionnaire...
September 20, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28929598/levels-of-serum-circulating-angiogenic-factors-within-1-week-prior-to-delivery-are-closely-related-to-conditions-of-pregnant-women-with-pre-eclampsia-gestational-hypertension-and-or-fetal-growth-restriction
#8
Sakiko Nanjo, Sawako Minami, Mika Mizoguchi, Madoka Yamamoto, Tamaki Yahata, Saori Toujima, Michihisa Shiro, Aya Kobayashi, Yasuteru Muragaki, Kazuhiko Ino
AIM: We aimed to investigate maternal serum angiogenic marker profiles within 1 week prior to delivery in cases of gestational hypertension (GH), pre-eclampsia (PE), and/or fetal growth restriction (FGR) with different clinical conditions. METHODS: We enrolled 165 women with singleton pregnancy. The participants were classified based on three characteristics: (i) proteinuria (GH and PE); (ii) FGR (PE with FGR [PE + FGR], PE alone, and FGR alone); and (iii) onset (early onset PE [EO PE] and late-onset PE [LO PE])...
September 20, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28927927/-evaluation-of-a-modification-of-the-nutrition-policy-on-the-frequency-of-extrauterine-growth-retardation-in-premature-newborns-between-2012%C3%A2-and-2014
#9
A-S Pages, O Tandonnet, L Renesme
INTRODUCTION: Extrauterine growth restriction is associated with long-term effects on growth and neurodevelopmental outcomes in preterm infants. The objective of this study was to evaluate the effects of a change in nutritional policy on the postnatal growth of premature infants. METHOD: Prospective observational study carried out between 01/01/14 and 31/12/14 in all newborns under 33 weeks GA admitted to the Bordeaux University Hospital after modification of the nutrition policy at the beginning of January 2014...
September 16, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28927705/evaluation-of-aluminium-mobilization-from-its-soil-mineral-pools-by-simultaneous-effect-of-aspergillus-strains-acidic-and-chelating-exometabolites
#10
Filip Polák, Martin Urík, Marek Bujdoš, Peter Uhlík, Peter Matúš
This contribution investigates aluminium mobilization from main aluminium pools in soils, phyllosilicates and oxyhydroxides, by acidic and chelating exometabolites of common soil fungi Aspergillus niger and A. clavatus. Their exometabolites' acidity as well as their ability to extract aluminium from solid mineral phases differed significantly during incubation. While both strains are able to mobilize aluminium from boehmite and aluminium oxide mixture to some extent, A. clavatus struggles to mobilize any aluminium from gibbsite...
September 13, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28927391/grand-multiparity-and-the-possible-risk-of-adverse-maternal-and-neonatal-outcomes-a-dilemma-to-be-deciphered
#11
Ghadeer K Al-Shaikh, Gehan H Ibrahim, Amel A Fayed, Hazem Al-Mandeel
BACKGROUND: The relation between grand multiparity (GMP) and the possible adverse pregnancy outcomes is not well identified. GMP (parity ≥5 births) frequently occurs in the Arab nations; therefore, this study aimed to identify the correlation between GMP and the different adverse maternal and neonatal outcomes in the Saudi population. METHOD: This cohort study was conducted on a total of 3327 women from the labour ward in King Khaled University Hospital, Riyadh, Saudi Arabia...
September 19, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28926825/fetal-growth-and-placental-growth-factor-umbilical-cord-blood-levels
#12
Zoe A Broere-Brown, Sarah Schalekamp-Timmermans, Vincent W V Jaddoe, Eric A P Steegers
OBJECTIVE: We assessed whether umbilical cord blood placental growth factor (PlGF) levels at delivery are associated with fetal growth. METHODS: From a prospective population-based cohort study we included 3,461 live singleton births. Fetal growth was assessed by birth weight, fetal growth pattern, and fetal growth restriction (FGR; decrease in growth between the second trimester and birth of ≥40 percentiles). In all analyses the highest PlGF multiple of the median (MoM) quintile was used as the reference category...
September 20, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28926292/vegf-polymorphisms-among-neovascular-age-related-macular-degenerative-subjects-in-a-multiethnic-population
#13
Nur Afiqah Mohamad, Vasudevan Ramachandran, Patimah Ismail, Hazlita Mohd Isa, Yoke Mun Chan, Nor Fariza Ngah, Norshakimah Md Bakri, Siew Mooi Ching, Fan Kee Hoo, Wan Aliaa Wan Sulaiman
AIM: To determine the association of vascular endothelial growth factor (VEGF) polymorphisms with neovascular age-related macular degeneration (nAMD). MATERIALS AND METHODS: One hundred thirty-five nAMD patients and 135 controls were recruited to determine the association of the -460 C/T, the -2549 I/D, and the +405 G/C polymorphisms with the VEGF gene. Genotyping was conducted using the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) approach, and association analyses were conducted using chi-square analysis and logistic regression analysis...
September 19, 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/28926149/speciation-below-ground-tempo-and-mode-of-diversification-in-a-radiation-of-endogean-ground-beetles
#14
Carmelo Andújar, Sergio Pérez-González, Paula Arribas, Juan P Zaballos, Alfried P Vogler, Ignacio Ribera
Dispersal is a critical factor determining the spatial scale of speciation, which is constrained by the ecological characteristics and distribution of a species' habitat and the intrinsic traits of species. Endogean taxa are strongly affected by the unique qualities of the below-ground environment and its effect on dispersal, and contrasting reports indicate either high dispersal capabilities favoured by small body size and mediated by passive mechanisms, or low dispersal due to restricted movement and confinement inside the soil...
September 19, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28925260/tailoring-the-oxidative-stress-tolerance-of-clostridium-tyrobutyricum-cctcc-w428-by-introducing-trehalose-biosynthetic-capability
#15
Qian Wu, Liying Zhu, Qing Xu, He Huang, Ling Jiang, Shang-Tian Yang
Fermentations employing anaerobes always suffer from the restriction of the stringent anaerobic conditions during the production of bulk and fine chemicals. This work aims to improve the oxidative stress tolerance of C. tyrobutyricum CCTCC W428, an ideal butyric-acid-producing anaerobe, via the introduction of trehalose biosynthesis capability. Compared with the wild type, a wider substrate spectrum, an improved metabolic profile and a significantly increased specific growth rate were shown by the engineered strain upon aeration and acid challenge...
September 19, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28923953/interaction-networks-ecological-stability-and-collective-antibiotic-tolerance-in-polymicrobial-infections
#16
Marjon G J de Vos, Marcin Zagorski, Alan McNally, Tobias Bollenbach
Polymicrobial infections constitute small ecosystems that accommodate several bacterial species. Commonly, these bacteria are investigated in isolation. However, it is unknown to what extent the isolates interact and whether their interactions alter bacterial growth and ecosystem resilience in the presence and absence of antibiotics. We quantified the complete ecological interaction network for 72 bacterial isolates collected from 23 individuals diagnosed with polymicrobial urinary tract infections and found that most interactions cluster based on evolutionary relatedness...
September 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28923937/direct-engagement-of-the-pi3k-pathway-by-mutant-kit-dominates-oncogenic-signaling-in-gastrointestinal-stromal-tumor
#17
Benedikt Bosbach, Ferdinand Rossi, Yasemin Yozgat, Jennifer Loo, Jennifer Q Zhang, Georgina Berrozpe, Katherine Warpinski, Imke Ehlers, Darren Veach, Andrew Kwok, Katia Manova, Cristina R Antonescu, Ronald P DeMatteo, Peter Besmer
Gastrointestinal stromal tumors (GISTs) predominantly harbor activating mutations in the receptor tyrosine kinase KIT. To genetically dissect in vivo the requirement of different signal transduction pathways emanating from KIT for tumorigenesis, the oncogenic Kit(V558Δ) mutation was combined with point mutations abrogating specific phosphorylation sites on KIT. Compared with single-mutant Kit(V558Δ/+) mice, double-mutant Kit(V558Δ;Y567F/Y567F) knock-in mice lacking the SRC family kinase-binding site on KIT (pY567) exhibited attenuated MAPK signaling and tumor growth...
September 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28922987/admissions-for-hypoglycaemia-after-35%C3%A2-weeks-of-gestation-perinatal-predictors-of-cost-of-stay
#18
Theodore Dassios, Anne Greenough, Stamatina Leontiadi, Ann Hickey, Nick Kametas
BACKGROUND: Hypoglycaemia accounts for approximately one tenth of term admissions to neonatal units, can cause long-term neurodevelopmental impairment and is associated with significant burden to the affected infants, families and the health system. OBJECTIVE: To define the prevalence, length and cost of admissions for hypoglycaemia in infants born at greater than 35 weeks gestation and to identify antenatal and perinatal predictors of those outcomes. MATERIAL AND METHODS: This was a retrospective audit of infants admitted for hypoglycaemia between 1/1/2012 and 31/12/2015, in a level three neonatal intensive care unit at King's College Hospital NHS Foundation Trust, London...
September 18, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28922424/deletion-of-the-rodent-malaria-ortholog-for-falcipain-1-highlights-differences-between-hepatic-and-blood-stage-merozoites
#19
Christine S Hopp, Brandy L Bennett, Satish Mishra, Christine Lehmann, Kirsten K Hanson, Jing-Wen Lin, Kimberly Rousseau, Filomena A Carvalho, Wouter A van der Linden, Nuno C Santos, Matthew Bogyo, Shahid M Khan, Volker Heussler, Photini Sinnis
Proteases have been implicated in a variety of developmental processes during the malaria parasite lifecycle. In particular, invasion and egress of the parasite from the infected hepatocyte and erythrocyte, critically depend on protease activity. Although falcipain-1 was the first cysteine protease to be characterized in P. falciparum, its role in the lifecycle of the parasite has been the subject of some controversy. While an inhibitor of falcipain-1 blocked erythrocyte invasion by merozoites, two independent studies showed that falcipain-1 disruption did not affect growth of blood stage parasites...
September 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28922393/a-set-of-nutrient-limitations-trigger-yeast-cell-death-in-a-nitrogen-dependent-manner-during-wine-alcoholic-fermentation
#20
Camille Duc, Martine Pradal, Isabelle Sanchez, Jessica Noble, Catherine Tesnière, Bruno Blondin
Yeast cell death can occur during wine alcoholic fermentation. It is generally considered to result from ethanol stress that impacts membrane integrity. This cell death mainly occurs when grape musts processing reduces lipid availability, resulting in weaker membrane resistance to ethanol. However the mechanisms underlying cell death in these conditions remain unclear. We examined cell death occurrence considering yeast cells ability to elicit an appropriate response to a given nutrient limitation and thus survive starvation...
2017: PloS One
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