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https://www.readbyqxmd.com/read/29165762/recent-perspectives-of-pediatric-neurodevelopmental-disorders
#1
D-L Zhang, S-Z Chen, X-M Liu
The assorted circumstances characterized by malfunctioning in cognition, communication or motor skills lead to abnormal development of the central nervous system (CNS) in young infants. These conditions are collectively termed as neurodevelopmental disorders (NDDs) and are usually diagnosed during childhood or infancy. NDDs occur as frequent as 1-3% in the general population and their diagnostic yield is approximately 15-25% with existing available techniques. So, the majority of affected patients are still undiagnosed due to genetic and phenotypic heterogeneity despite the discovery of 450 genes associated with NDDs...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29165230/para-like-protein-influences-the-distribution-of-multi-copy-chromosomes-in-cyanobacterium-synechococcus-elongatus-pcc-7942
#2
Satoru Watanabe, Aska Noda, Ryudo Ohbayashi, Kana Uchioke, Ami Kurihara, Shizuka Nakatake, Sayumi Morioka, Yu Kanesaki, Taku Chibazakura, Hirofumi Yoshikawa
While many bacteria, such as Escherichia coli and Bacillus subtilis, harbour a single-copy chromosome, freshwater cyanobacteria have multiple copies of each chromosome per cell. Although it has been reported that multi-copy chromosomes are evenly distributed along the major axis of the cell in cyanobacterium Synechococcus elongatus PCC 7942, the distribution mechanism of these chromosomes remains unclear. In S. elongatus, the carboxysome, a metabolic microcompartment for carbon fixation that is distributed in a similar manner to the multi-copy chromosomes, is regulated by ParA-like protein (hereafter ParA)...
November 21, 2017: Microbiology
https://www.readbyqxmd.com/read/29165002/adrenal-dependent-and-independent-stress-induced-per1-mrna-in-hypothalamic-paraventricular-nucleus-and-prefrontal-cortex-of-male-and-female-rats
#3
Lauren E Chun, Jenny Christensen, Elizabeth R Woodruff, Sarah J Morton, Laura R Hinds, Robert L Spencer
Oscillating clock gene expression gives rise to a molecular clock that is present not only in the body's master circadian pacemaker, the hypothalamic suprachiasmatic nucleus (SCN), but also in extra-SCN brain regions. These extra-SCN molecular clocks depend on the SCN for entrainment to a light:dark cycle. The SCN has limited neural efferents, so it may entrain extra-SCN molecular clocks through its well-established circadian control of glucocorticoid hormone secretion. Glucocorticoids can regulate the normal rhythmic expression of clock genes in some extra-SCN tissues...
November 22, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/29164704/holey-reduced-graphene-oxide-coupled-with-an-mo2-n-mo2-c-heterojunction-for-efficient-hydrogen-evolution
#4
Haijing Yan, Ying Xie, Yanqing Jiao, Aiping Wu, Chungui Tian, Xiaomeng Zhang, Lei Wang, Honggang Fu
An in situ catalytic etching strategy is developed to fabricate holey reduced graphene oxide along with simultaneous coupling with a small-sized Mo2 N-Mo2 C heterojunction (Mo2 N-Mo2 C/HGr). The method includes the first immobilization of H3 PMo12 O40 (PMo12 ) clusters on graphite oxide (GO), followed by calcination in air and NH3 to form Mo2 N-Mo2 C/HGr. PMo12 not only acts as the Mo heterojunction source, but also provides the Mo species that can in situ catalyze the decomposition of adjacent reduced GO to form HGr, while the released gas (CO) and introduced NH3 simultaneously react with the Mo species to form an Mo2 N-Mo2 C heterojunction on HGr...
November 22, 2017: Advanced Materials
https://www.readbyqxmd.com/read/29164645/current-or-recent-smoking-is-associated-with-more-variable-telomere-length-in-prostate-stromal-cells-and-prostate-cancer-cells
#5
Corinne E Joshu, Sarah B Peskoe, Christopher M Heaphy, Stacey A Kenfield, Lorelei A Mucci, Edward L Giovannucci, Meir J Stampfer, Ghilsuk Yoon, Thomas K Lee, Jessica L Hicks, Angelo M De Marzo, Alan K Meeker, Elizabeth A Platz
BACKGROUND: Current and recent smoking have been associated with a greater risk of prostate cancer recurrence and mortality, though the underlying mechanism is unknown. METHODS: To determine if telomere shortening, which has been associated with poor outcomes, may be a potential underlying mechanism, we prospectively evaluated the association between smoking status and telomere length in 567 participants in the Health Professionals Follow-up Study, who were surgically treated for prostate cancer...
November 22, 2017: Prostate
https://www.readbyqxmd.com/read/29164473/clinicopathological-and-immunohistochemical-study-of-head-and-neck-langerhans-cell-histiocytosis-from-latin-america
#6
Natália Rocha Bedran, Román Carlos, Bruno Augusto Benevenuto de Andrade, Ana Paula Silva Bueno, Mário José Romañach, Cristiane Bedran Milito
Langerhans cell histiocytosis (LCH) is an inflammatory myeloid neoplastic proliferation with variable clinical behavior caused by the accumulation of CD1a(+)/CD207(+) histiocytes, associated with a variable number of eosinophils, lymphocytes, plasma cells and multinucleated giant cells, most commonly observed in male children. LCH is uncommon in the head and neck region, occurring as ulcerated and reddened plaques or nodules that cause destruction of adjacent soft tissues and bone. The exact etiology of LCH is still unknown and controversial, with possible etiologic role of viruses, including Epstein-Barr virus (EBV)...
November 21, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29164367/mannans-and-endo-%C3%AE-mannanase-transcripts-are-located-in-different-seed-compartments-during-brassicaceae-germination
#7
Néstor Carrillo-Barral, Angel J Matilla, María Del Carmen Rodríguez-Gacio, Raquel Iglesias-Fernández
Mannans but not endo-β-mannanases are mainly found in the mucilage layer of two Brassicaceae seeds. Nonetheless, mannanase mobilization from inner to outer seed layers cannot be ruled out. The contribution of endo-β-mannanase (MAN) genes to the germination of the wild-type Sisymbrium officinale and cultivated Brassica rapa (Brassicaceae) species has been explored. In both species, mannans have been localized to the imbibed external seed coat layer (mucilage) by fluorescence immunolocalization and MAN enzymatic activity increases in seeds as imbibition progresses, reaching a peak before 100% germination is achieved...
November 21, 2017: Planta
https://www.readbyqxmd.com/read/29164082/acute-septic-arthritis-of-the-knee-caused-by-kingella-kingae-in-a-5-year-old-cameroonian-boy
#8
Nawal El Houmami, Dimitri Ceroni, Karine Codjo Seignon, Jean-Christophe Pons, Cédric Lambert, Guillaume André Durand, Philippe Minodier, Léopold Lamah, Philippe Bidet, Jacques Schrenzel, Didier Raoult, Pierre-Edouard Fournier
Kingella kingae is an important cause of invasive infections in young children from Western countries. Although increasing reports indicate that this organism is the leading agent of bone and joint infections in early childhood, data on K. kingae infections from resource-limited settings are scarce, and none has yet been reported in Africa. We herein report the diagnostic and epidemiological investigations of the first case of K. kingae arthritis identified in a child from sub-Saharan Africa. A 5-year-old Cameroonian boy presented with a sudden painful limp which appeared in the course of a mild rhinopharyngitis...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29163842/real-world-experience-of-afatinib-as-a-first-line-therapy-for-advanced-egfr-mutation-positive-lung-adenocarcinoma
#9
Sheng-Kai Liang, Min-Shu Hsieh, Meng-Rui Lee, Li-Ta Keng, Jen-Chung Ko, Jin-Yuan Shih
We evaluated the real-world efficacy and side effects of afatinib as a first-line therapy for advanced EGFR mutation-positive lung adenocarcinoma. The medical records of patients receiving afatinib as a first-line therapy after National Health Insurance reimbursement between May 2014 and January 2016 were reviewed, and information on patient characteristics and treatment courses were collected consecutively. Rebiopsy tissue was collected for EGFR mutation and MET amplification analyses. MET amplification was detected by fluorescence in situ hybridization and immunohistochemistry...
October 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/29163763/pd-l1-expression-and-cd8-tumor-infiltrating-lymphocytes-are-associated-with-alk-rearrangement-and-clinicopathological-features-in-inflammatory-myofibroblastic-tumors
#10
Yoon Jin Cha, Hyo Sup Shim
Background: Inflammatory myofibroblastic tumors (IMTs) are rare mesenchymal neoplasms that are composed of myofibroblastic cells accompanied by inflammatory infiltrate. We investigated the immune profiles of IMTs, including PD-L1 expression and proportion of CD8+ tumor-infiltrating lymphocytes (TILs), as well as its clinicopathological characteristics according to ALK gene rearrangementstatus. Methods: Twenty-eight IMTs from 25 patients were retrieved from our pathology files (2005-2015), and their clinicopathological parameters and outcomes were analyzed...
October 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/29162835/a-signal-amplifiable-biochip-quantifies-extracellular-vesicle-associated-rnas-for-early-cancer-detection
#11
Jiaming Hu, Yan Sheng, Kwang Joo Kwak, Junfeng Shi, Bohao Yu, L James Lee
Detection of extracellular vesicle (EV)-associated RNAs with low expression levels in early-stage cancer remains a challenge and is highly valuable. Here, we report a nanoparticle-based biochip that could capture circulating EVs without isolation, brighten encapsulated RNAs, and amplify fluorescence signals in situ in a single step. We confine catalyzed hairpin DNA circuit (CHDC) in cationic lipid-polymer hybrid nanoparticles (LPHNs) that are tethered on a chip. LPHN features a core-shell-corona structure that facilitates the transfer and mixing of CHDC with EV-associated RNAs when forming the LPHN-EV nanocomplex...
November 22, 2017: Nature Communications
https://www.readbyqxmd.com/read/29162723/the-transcription-factor-foxc1a-in-zebrafish-directly-regulates-expression-of-nkx2-5-encoding-a-transcriptional-regulator-of-cardiac-progenitor-cells
#12
Yunyun Yue, Mingyang Jiang, Luqingqing He, Zhaojunjie Zhang, Qinxin Zhang, Chun Gu, Meijing Liu, Nan Li, Qingshun Zhao
Cardiogenesis is a tightly controlled biological process required for formation of a functional heart. The transcription factor Foxc1 not only plays a crucial role in outflow tract development in mice, but is also involved in  cardiac structure formation and normal function in human. However, the molecular mechanisms by which Foxc1 controls cardiac development remain poorly understood. Previously, we reported that zebrafish embryos deficient in foxc1a, an ortholog of mammalian Foxc1, display pericardial edemas and die 9-10 days post fertilization...
November 21, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29162694/an-endogenous-retroviral-envelope-syncytin-and-its-cognate-receptor-identified-in-the-viviparous-placental-mabuya-lizard
#13
Guillaume Cornelis, Mathis Funk, Cécile Vernochet, Francisca Leal, Oscar Alejandro Tarazona, Guillaume Meurice, Odile Heidmann, Anne Dupressoir, Aurélien Miralles, Martha Patricia Ramirez-Pinilla, Thierry Heidmann
Syncytins are envelope genes from endogenous retroviruses that have been captured during evolution for a function in placentation. They have been found in all placental mammals in which they have been searched, including marsupials. Placental structures are not restricted to mammals but also emerged in some other vertebrates, most frequently in lizards, such as the viviparous Mabuya Scincidae. Here, we performed high-throughput RNA sequencing of a Mabuya placenta transcriptome and screened for the presence of retroviral env genes with a full-length ORF...
November 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29160197/isolation-and-molecular-characterization-of-group-b-streptococcus-from-laboratory-long-evans-rats-rattus-norvegicus-with-and-without-invasive-group-b-streptococcal-disease
#14
Caroline Bodi Winn, Vasudevan Bakthavatchalu, Michael Y Esmail, Yan Feng, JoAnn Dzink-Fox, Lauren Richey, Scott E Perkins, Eric K Nordberg, James G Fox
PURPOSE: Group B Streptococcus (S. agalactiae, GBS) is a Gram-positive opportunistic pathogen that inhabits the respiratory, urogenital and gastrointestinal tracts of humans and animals. Maternal colonization of GBS is a risk factor for a spectrum of clinical diseases in humans and a principle cause of neonatal meningitis and septicaemia. METHODOLOGY: We describe polymicrobial sepsis including GBS in two gravid adult female Long-Evans rats experiencing acute mortality from a colony of long-term breeding pairs...
November 21, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/29159962/expression-profile-of-n-cadherin-and-protocadherin-19-in-postnatal-mouse-limbic-structures
#15
Anne Schaarschuch, Nicole Hertel
Cadherins are a superfamily of calcium-dependent cell adhesion molecules that are involved in brain development and organization. Previous genetic studies revealed that mutations in protocadherin-19 (Pcdh19) lead to an epilepsy syndrome with a variable degree of cognitive disability. Seizure origins are located in the frontotemporal and limbic structures. Expression studies of Pcdh19 in mouse confirmed a widespread presence during brain development while the function and the pathogenesis of Pcdh19 are still unknown in mammals...
November 21, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/29159791/determining-personalized-treatment-by-gene-expression-profiling-in-metastatic-breast-carcinoma-patients-a-pilot-study
#16
M Sureda, J Rebollo, E Mª Martínez-Navarro, F J Fernández-Morejón, J Farré, V Muñoz, P Bretcha-Boix, M Duarte, R G Manzano, A Crespo, M Del Carmen Redal, B Valenzuela, A Brugarolas
PURPOSE: The present study evaluates the massive study of gene expression in metastatic breast carcinoma (MBC) patients using microarray gene expression profiling (MAGE) complemented with conventional sequencing, immunohistochemistry (IHC) and fluorescent "in situ" hybridization (FISH), seeking to optimize the treatment in a subset of heavily pretreated patients and with limited life expectancy. PATIENTS, MATERIAL AND METHODS: MBC patients in hormone therapy progression with survival expectancy of at least 3 months (m) have been included...
November 20, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/29159757/correlation-between-postoperative-early-recurrence-of-hepatocellular-carcinoma-and-mesenchymal-circulating-tumor-cells-in-peripheral-blood
#17
Zhong Wang, Lei Luo, Yuan Cheng, Guolin He, Bangjian Peng, Yi Gao, Ze-Sheng Jiang, MingXin Pan
BACKGROUND: Circulating tumor cells (CTCs) have been actively studied for their functions in hepatocellular carcinoma (HCC) recurrence. However, the relationship between circulating tumor cells subtypes and hepatocellular carcinoma recurrence is still unclear. METHODS: CTCs were collected from the peripheral blood of 62 postoperative HCC patients. The CTCs were isolated with a filtration-based method. Multiplex fluorescence in situ hybridization was used to characterize the CTCs based on mRNA expression levels of epithelial and mesenchymal markers...
November 20, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29159670/analysis-of-b-chromosome-nondisjunction-induced-by-the-r-x1-deficiency-in-maize
#18
Shih-Hsuan Tseng, Shu-Fen Peng, Ya-Ming Cheng
The maize B chromosome typically undergoes nondisjunction during the second microspore division. For normal A chromosomes, the r-X1 deficiency in maize can induce nondisjunction during the second megaspore and first microspore divisions. However, it is not known whether the r-X1 deficiency also induces nondisjunction of the maize B chromosome during these cell divisions. To answer this question, chromosome numbers were determined in the progeny of r-X1/R-r female parents carrying two B chromosomes. Some of the r-X1-lacking progeny (21...
November 20, 2017: Chromosome Research
https://www.readbyqxmd.com/read/29158935/synchronous-hpv-related-cancer-of-bilateral-tonsils-detected-using-transoral-endoscopic-examination-with-narrow-band-imaging
#19
Fukuko Shimizu, Kenji Okami, Koji Ebisumoto, Daisuke Maki, Akihiro Sakai, Go Ogura, Naoya Nakamura, Masahiro Iida
Background: The incidence of human papillomavirus- (HPV-) related oropharyngeal squamous cell carcinoma (OPSCC) has been rapidly increasing worldwide. HPV is reported in approximately 50% cases of OPSCC in Japan. However, there are few reports of synchronous bilateral HPV-positive tonsillar carcinoma, and, in almost all those cases, carcinoma was detected using positron emission tomography/computed tomography and/or bilateral tonsillectomy. Methods and Results: We report the case of a 63-year-old male with bilateral tonsillar carcinoma detected using transoral endoscopic examination with narrow-band imaging (NBI)...
2017: Case Reports in Otolaryngology
https://www.readbyqxmd.com/read/29158342/fates-of-angiosperm-species-following-long-distance-dispersal-examples-from-american-amphitropical-polemoniaceae
#20
Leigh A Johnson, J Mark Porter
PREMISE OF THE STUDY: Following establishment after long-distance dispersal, species may experience stasis, accumulate changes leading to new species identity, diversify into multiple species, interact with related species to form novel species, and even become extirpated. We examined each species of temperate Polemoniaceae in South America via the literature and new analyses to better understand the fates of species in this family after their dispersal from North America. METHODS: We reviewed literature for the 15 species of Polemoniaceae in South America amphitropically disjunct from their relatives in North America...
November 20, 2017: American Journal of Botany
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