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https://www.readbyqxmd.com/read/28441414/regional-early-and-progressive-loss-of-brain-pericytes-but-not-vascular-smooth-muscle-cells-in-adult-mice-with-disrupted-platelet-derived-growth-factor-receptor-%C3%AE-signaling
#1
Angeliki Maria Nikolakopoulou, Zhen Zhao, Axel Montagne, Berislav V Zlokovic
Pericytes regulate key neurovascular functions of the brain. Studies in pericyte-deficient transgenic mice with aberrant signaling between endothelial-derived platelet-derived growth factor BB (PDGF-BB) and platelet-derived growth factor receptor β (PDGFRβ) in pericytes have contributed to better understanding of the role of pericytes in the brain. Here, we studied PdgfrβF7/F7 mice, which carry seven point mutations that disrupt PDGFRβ signaling causing loss of pericytes and vascular smooth muscle cells (VSMCs) in the developing brain...
2017: PloS One
https://www.readbyqxmd.com/read/28441348/deoxynucleoside-salvage-in-fission-yeast-allows-rescue-of-ribonucleotide-reductase-deficiency-but-not-spd1-mediated-inhibition-of-replication
#2
Oliver Fleck, Ulrik Fahnøe, Katrine Vyff Løvschal, Marie-Fabrice Uwamahoro Gasasira, Irina N Marinova, Birthe B Kragelund, Antony M Carr, Edgar Hartsuiker, Christian Holmberg, Olaf Nielsen
In fission yeast, the small, intrinsically disordered protein S-phase delaying protein 1 (Spd1) blocks DNA replication and causes checkpoint activation at least in part, by inhibiting the enzyme ribonucleotide reductase, which is responsible for the synthesis of DNA. The CRL4(Cdt2) E3 ubiquitin ligase mediates degradation of Spd1 and the related protein Spd2 at S phase of the cell cycle. We have generated a conditional allele of CRL4(Cdt2), by expressing the highly unstable substrate-recruiting protein Cdt2 from a repressible promoter...
April 25, 2017: Genes
https://www.readbyqxmd.com/read/28440853/antibiotic-strategies-for-eradicating-pseudomonas-aeruginosa-in-people-with-cystic-fibrosis
#3
REVIEW
Simon C Langton Hewer, Alan R Smyth
BACKGROUND: Respiratory tract infection with Pseudomonas aeruginosa occurs in most people with cystic fibrosis. Once chronic infection is established, Pseudomonas aeruginosa is virtually impossible to eradicate and is associated with increased mortality and morbidity. Early infection may be easier to eradicate.This is an update of a Cochrane review first published in 2003, and previously updated in 2006, 2009 and 2014. OBJECTIVES: To determine whether antibiotic treatment of early Pseudomonas aeruginosa infection in children and adults with cystic fibrosis eradicates the organism, delays the onset of chronic infection, and results in clinical improvement...
April 25, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28440442/role-of-the-wnt-%C3%AE-catenin-signaling-pathway-in-inducing-apoptosis-and-renal-fibrosis-in-5-6-nephrectomized-rats
#4
Xin Lin, Yan Zha, Xiang-Zhen Zeng, Rong Dong, Qing-Hua Wang, Dong-Tao Wang
Renal fibrosis is the final common pathway of all progressive renal disease. Excessive and chronic activation of the Wnt/β-catenin signaling pathway results in chronic kidney disease (CKD) progression. To mimic CKD, the present study used 5/6-nephrectomized rats, and alterations in kidney histology, expression of β‑catenin and renal cell apoptosis were assessed. In addition, mesangial cells were cultured in vitro and transfected with β‑catenin siRNA to evaluate the effect of blocking Wnt/β‑catenin signaling on cell apoptosis and the expression of markers of renal fibrosis...
April 12, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28440418/two-novel-mutations-in-ercc6-cause-cockayne-syndrome-b-in-a-chinese-family
#5
Chunxia He, Mao Sun, Guoxia Wang, Ying Yang, Libo Yao, Yuanming Wu
Cockayne syndrome (CS) is a rare autosomal recessive disorder characterized principally by progressive growth failure, neurologic abnormality and premature aging. Mutations of excision repair cross‑complementation group 6 (ERCC6) and ERCC8 are predominantly responsible for CS, of which mutation of ERCC6 accounts for approximately two thirds of cases. The current report describes two siblings with severe neurologic abnormality and premature aging. Whole exome sequencing identified two novel mutations in ERCC6 that had not been previously reported...
April 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28439461/quantitative-assessment-of-fibroblast-growth-factor-receptor-1-expression-in-neurons-and-glia
#6
Lisha Choubey, Jantzen C Collette, Karen Müller Smith
BACKGROUND: Fibroblast growth factors (FGFs) and their receptors (FGFRs) have numerous functions in the developing and adult central nervous system (CNS). For example, the FGFR1 receptor is important for proliferation and fate specification of radial glial cells in the cortex and hippocampus, oligodendrocyte proliferation and regeneration, midline glia morphology and soma translocation, Bergmann glia morphology, and cerebellar morphogenesis. In addition, FGFR1 signaling in astrocytes is required for postnatal maturation of interneurons expressing parvalbumin (PV)...
2017: PeerJ
https://www.readbyqxmd.com/read/28439198/assessment-of-tumors-in-children-with-tuberous-sclerosis-a-single-centre-s-experience
#7
Suna Emir, Şadan Hacısalihoğlu, Derya Özyörük, Filiz Ekici, Aydan Değerliyurt, Alev Güven, İlker Çetin
AIM: As a result of mutations in TSC1 (9q34) and TSC2 (16p13.3) tumor supressor genes, the mammalian target of the rapamycin (mTor) signaling pathway is overactivated in patients with tuberous sclerosis. Abnormal cell proliferation and differentiation is responsible for the growth several different tumors. The aim of this study was to review tumors in our patients with tuberous sclerosis. MATERIAL AND METHODS: Thirty-six patients with tuberous sclerosis were reviewed retrospectively in terms of age, sex, family history, clinical findings, presence of tumors, and treatments...
March 2017: Türk Pediatri Arşivi
https://www.readbyqxmd.com/read/28439104/a-novel-5ht3-receptor-igf1-mechanism-distinct-from-ssri-induced-antidepressant-effects
#8
M Kondo, Y Koyama, Y Nakamura, S Shimada
Depression is a common mental disorder affecting around 350 million people worldwide. Although selective serotonin reuptake inhibitors (SSRIs) are the most widely used antidepressants, a significant proportion of depressed patients do not achieve remission with SSRIs. In this study, we show that a serotonin type 3 receptor (5HT3R) agonist induces antidepressant effects as well as hippocampal neurogenesis independent of fluoxetine (a commonly used SSRI). Notably, our histological analysis reveals that 5HT3R and insulin-like growth factor 1 (IGF1) are expressed in the same neurons in the subgranular zone of the hippocampal dentate gyrus...
April 25, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28438881/prevalence-of-congenital-cytomegalovirus-infection-assessed-through-viral-genome-detection-in-dried-blood-spots-in-children-with-autism-spectrum-disorders
#9
Ivan Gentile, Emanuela Zappulo, Maria Pia Riccio, Sandro Binda, Laura Bubba, Laura Pellegrinelli, Domenico Scognamiglio, Francesca Operto, Lucia Margari, Guglielmo Borgia, Carmela Bravaccio
BACKGROUND/AIM: Autism spectrum disorders (ASD) are neurodevelopmental disorders without a definitive etiology in most cases. Environmental factors, such as viral infections, have been linked with anomalies in brain growth, neuronal development, and functional connectivity. Congenital cytomegalovirus (CMV) infection has been associated with the onset of ASD in several case reports. The aim of this study was to evaluate the prevalence of congenital CMV infection in children with ASD and in healthy controls...
May 2017: In Vivo
https://www.readbyqxmd.com/read/28438524/trajectories-of-mental-health-related-service-use-among-adolescents-with-histories-of-early-externalizing-problems
#10
Yuko Okado, Emily Ewing, Christina Rowley, Damon E Jones
PURPOSE: To inform efforts to reduce costly service utilization, the present study examined longitudinal trajectories of mental health-related outpatient and residential service use among at-risk youth with a history of early externalizing problems. METHODS: A cohort of 809 children in the Fast Track Project, a multisite longitudinal study of children at risk for conduct disorder, were followed prospectively from kindergarten through 12th grade. They resided in high-risk areas with high rates of poverty, crime, and violence...
April 21, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28438205/expression-of-the-clonostachys-rosea-lactonohydrolase-gene-by-lactobacillus-reuteri-to-increase-its-zearalenone-removing-ability
#11
Wen-Chun Yang, Tsui-Chun Hsu, Kuan-Chen Cheng, Je-Ruei Liu
BACKGROUND: Mycotoxins are secondary metabolites produced by filamentous fungi that can contaminate agricultural crops in the field as well as during harvest, transportation, processing, or storage. Zearalenone (ZEN), a non-steroidal estrogenic mycotoxin, produced by Fusarium species, has been shown to be associated with reproductive disorders in farm animals and to a lesser extent in hyperoestrogenic syndromes in humans. Thus, the decontamination of ZEN in foods and feeds is an important issue...
April 24, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28438065/reduced-expression-of-eukaryotic-translation-initiation-factor-3-subunit-e-and-its-possible-involvement-in-the-epithelial-mesenchymal-transition-in-endometriosis
#12
Xianjun Cai, Minhong Shen, Xishi Liu, Sun-Wei Guo
Epithelial-mesenchymal transition (EMT) is now well documented to be involved in the development of endometriosis through the promotion of invasion and fibrogenesis. To date, several factors have been reported to be involved in EMT in endometriosis. The eukaryotic translation initiation factor 3 subunit e (eIF3e) protein is a component of the multisubunit eIF3 complex essential for cap-dependent translation initiation. The aim of this study was to investigate whether eIF3e is involved in EMT in endometriosis...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28437712/raspberry-pomace-alters-cecal-microbial-activity-and-reduces-secondary-bile-acids-in-rats-fed-a-high-fat-diet
#13
Bartosz Fotschki, Jerzy Juśkiewicz, Adam Jurgoński, Neil Rigby, Michał Sójka, Krzysztof Kołodziejczyk, Alan Mackie, Zenon Zduńczyk
The profile of bile acids (BA) largely depends on the enzymatic activity of the microbiota, but this can be modulated by the dietary addition of biologically active compounds, e.g., polyphenols and polyunsaturated fatty acids. The aim of this study was to examine the effect of dietary raspberry pomace as a rich source of biologically active compounds on microbial activity and the BA profile in the caecum of rats fed a high-fat diet. Wistar rats were fed the standard diet AIN-93, a high-fat diet or a modified high-fat diet enriched with 7% different types of processed raspberry pomaces produced by standard grinding and fine grinding, with or without seeds...
April 7, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28437601/maternal-hemodynamics-in-normal-pregnancies-reference-ranges-and-the-role-of-maternal-characteristics
#14
Dimuthu Vinayagam, Baskaran Thilaganathan, Oliver Stirrup, Elena Mantovani, Asma Khalil
OBJECTIVES: The main aim of this study was to construct reference ranges of the maternal central hemodynamic parameters during pregnancy. The second aim was to determine the maternal and pregnancy characteristics, which influence these hemodynamic parameters. METHODS: This was a prospective cohort study of low-risk pregnant women attending for routine antenatal care at St George's Hospital, London. The exclusion criteria included any medical disorder present at the time of study recruitment, or development of hypertension or intrauterine fetal growth restriction following study recruitment...
April 24, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28436973/a-review-of-hematopoietic-cell-transplantation-in-china-data-and-trends-during-2008-2016
#15
L-P Xu, D-P Wu, M-Z Han, H Huang, Q-F Liu, D-H Liu, Z-M Sun, L-H Xia, J Chen, H-X Wang, C Wang, C-F Li, Y-R Lai, J-M Wang, D-B Zhou, H Chen, Y-P Song, T Liu, K-Y Liu, X-J Huang
Hematopoietic cell transplantation (HCT) activity in China was surveyed to assess its current status. A record number of HCTs (21 884: 16 631 allogeneic (76%) and 5253 autologous (24%)) were reported by 76 centers in China between 1 January 2008 and 30 June 2016. HCT trends included continued growth in transplant activity, a continued rapid increase in haploidentical donors (HID), and slower growth for unrelated donors, matched-related donors (MRD) and cord blood transplantation (CBT). The proportion of HID HCT among allogeneic HCTs increased from 29...
April 24, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28436015/the-use-of-topical-minoxidil-to-accelerate-nail-growth-a-pilot-study
#16
Kumpol Aiempanakit, Alan Geater, Preeyachat Limtong, Kathleen Nicoletti
Linear nail growth rate is affected by various conditions, one of which is the level of blood flow. Our supposition was that topical minoxidil, which has vasodilatory properties, can increase the rate of nail growth. The aim of this study was to determine the impact of topical minoxidil on nail growth. A 5% topical minoxidil solution was applied twice daily to the fingernails of 32 participants. Two groups of 16 participants were randomly chosen. In one group, the applications were made to the right index and left ring fingernails, and, in the other, the left index and right ring fingernails...
April 23, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28435252/polyphenol-nanoformulations-for-cancer-therapy-experimental-evidence-and-clinical-perspective
#17
REVIEW
Yasamin Davatgaran-Taghipour, Salar Masoomzadeh, Mohammad Hosein Farzaei, Roodabeh Bahramsoltani, Zahra Karimi-Soureh, Roja Rahimi, Mohammad Abdollahi
Cancer is defined as the abnormal cell growth that can cause life-threatening malignancies with high financial costs for patients as well as the health care system. Natural polyphenols have long been used for the prevention and treatment of several disorders due to their antioxidant, anti-inflammatory, cytotoxic, antineoplastic, and immunomodulatory effects discussed in the literature; thus, these phytochemicals are potentially able to act as chemopreventive and chemotherapeutic agents in different types of cancer...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28435120/the-role-of-platelets-in-hemostasis-and-the-effects-of-snake-venom-toxins-on-platelet-function
#18
REVIEW
Mayara Ribeiro de Queiroz, Bruna Barbosa de Sousa, Déborah Fernanda da Cunha Pereira, Carla Cristine Neves Mamede, Mariana Santos Matias, Nadia Cristina Gomes de Morais, Júnia de Oliveira Costa, Fábio de Oliveira
The human body has a set of physiological processes, known as hemostasis, which keeps the blood fluid and free of clots in normal vessels; in the case of vascular injury, this process induces the local formation of a hemostatic plug, preventing hemorrhage. The hemostatic system in humans presents complex physiological interactions that involve platelets, plasma proteins, endothelial and subendothelial structures. Disequilibrium in the regulatory mechanisms that control the growth and the size of the thrombus is one of the factors that favors the development of diseases related to vascular disorders such as myocardial infarction and stroke, which are among the leading causes of death in the western world...
April 20, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28433099/other-organ-involvement-and-clinical-aspects-of-wilson-disease
#19
Karolina Dzieżyc, Tomasz Litwin, Anna Członkowska
Wilson disease (WD) is a rare disorder of copper metabolism that presents mainly with hepatic and neuropsychiatric features. Copper accumulates not only in the liver and brain, but also in other organs. Liver injury can also be the cause of secondary impairment of other tissues. Therefore, the clinical manifestation of WD may be renal, cardiac, skin, osteoarticular, or endocrinologic and include other organ disturbances. Renal abnormalities include tubular dysfunction (e.g., renal tubular acidosis, aminoaciduria) and nephrolithiasis...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28433087/paternal-age-alters-social-development-in-offspring
#20
Magdalena Janecka, Claire M A Haworth, Angelica Ronald, Eva Krapohl, Francesca Happé, Jonathan Mill, Leonard C Schalkwyk, Cathy Fernandes, Abraham Reichenberg, Frühling Rijsdijk
OBJECTIVE: Advanced paternal age (APA) at conception has been linked with autism and schizophrenia in offspring, neurodevelopmental disorders that affect social functioning. The current study explored the effects of paternal age on social development in the general population. METHOD: We used multilevel growth modeling to investigate APA effects on socioemotional development from early childhood until adolescence, as measured by the Strengths and Difficulties Questionnaire (SDQ) in the Twins Early Development Study (TEDS) sample...
May 2017: Journal of the American Academy of Child and Adolescent Psychiatry
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