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https://www.readbyqxmd.com/read/28725366/vegetation-structure-and-photosynthesis-respond-rapidly-to-restoration-in-young-coastal-fens
#1
Anna M Laine, Anne Tolvanen, Lauri Mehtätalo, Eeva-Stiina Tuittila
Young coastal fens are rare ecosystems in the first stages of peatland succession. Their drainage compromises their successional development toward future carbon (C) reservoirs. We present the first study on the success of hydrological restoration of young fens. We carried out vegetation surveys at six young fens that represent undrained, drained, and restored management categories in the Finnish land uplift coast before and after restoration. We measured plant level carbon dioxide (CO2) assimilation and chlorophyll fluorescence (Fv/Fm) from 17 most common plant species present at the sites...
October 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/28724108/yellow-perch-perca-flavescens-mercury-unaffected-by-wildland-fires-in-northern-minnesota
#2
Charlotte E Riggs, Randall K Kolka, Edward A Nater, Emma L Witt, Trent R Wickman, Laurel G Woodruff, Jason T Butcher
Wildland fire can alter mercury (Hg) cycling on land and in adjacent aquatic environments. In addition to enhancing local atmospheric Hg redeposition, fire can influence terrestrial movement of Hg and other elements into lakes via runoff from burned upland soil. However, the impact of fire on water quality and the accumulation of Hg in fish remain equivocal. We investigated the effects of fire-specifically, a low-severity prescribed fire and moderate-severity wildfire-on young-of-the-year yellow perch () and lake chemistry in a small remote watershed in the Boundary Waters Canoe Area Wilderness in northeastern Minnesota...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28719634/taxa-area-relationship-of-aquatic-fungi-on-deciduous-leaves
#3
Sofia Duarte, Fernanda Cássio, Cláudia Pascoal, Felix Bärlocher
One of the fundamental patterns in macroecology is the increase in the number of observed taxa with size of sampled area. For microbes, the shape of this relationship remains less clear. The current study assessed the diversity of aquatic fungi, by the traditional approach based on conidial morphology (captures reproducing aquatic hyphomycetes) and next generation sequencing (NGS; captures other fungi as well), on graded sizes of alder leaves (0.6 to 13.6 cm2). Leaves were submerged in two streams in geographically distant locations: the Oliveira Stream in Portugal and the Boss Brook in Canada...
2017: PloS One
https://www.readbyqxmd.com/read/28713902/establishment-and-characterization-of-cell-lines-derived-from-complete-hydatidiform-mole
#4
Eiko Yamamoto, Kaoru Niimi, Tohru Kiyono, Toshimichi Yamamoto, Kimihiro Nishino, Kenichi Nakamura, Tomomi Kotani, Hiroaki Kajiyama, Kiyosumi Shibata, Fumitaka Kikkawa
Gestational trophoblastic diseases (GTDs) are a group of diseases characterized by abnormal cellular proliferation of atypical trophoblasts. A hydatidiform mole is an abnormal pregnancy caused by genetic fertilization disorders, and it can be classified as a complete hydatidiform mole (CHM) or a partial hydatidiform mole. The aim of this study was to establish cell lines from CHMs and to characterize the cells for future studies concerning GTD. HMol1-2C, HMol1-3B, HMol1-8 and HMol3-1B were established from primary cultures of CHM explants following the introduction of different combinations of genes including human telomerase reverse transcriptase (hTERT), a mutant form of CDK (CDK4R24C), cyclin D1, p53C234, MYC and HRAS...
July 14, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28713745/recovering-breathing-and-feeding-of-a-newborn-with-pierre-robin-sequence
#5
Francisnele Maria de Aquino Fraporti Tomáz, Alvaro Henrique Borges, Alexandre Meireles Borba, Luiz Evaristo Ricci Volpato
Pierre Robin sequence (PRS) is characterized by the triad micrognathia, glossoptosis, and airway obstruction, commonly associated with cleft palate. This study reports the case of a patient with characteristics consistent with the diagnosis of PRS in the 1(st) week of life. To stabilize the airway, oro-tracheal intubation was performed without success, followed by tracheostomy and glossopexy and after a small improvement in symptoms, it was decided to perform the mandibular distraction osteogenesis (MDO). At the age of 6, her maxillofacial development was within expectations, with patent airway, the presence of deciduous teeth, and without neurological impairment...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28712195/giant-cementoblastoma-of-left-maxilla-involving-a-deciduous-molar
#6
Anam Javed, Syed Majid Hussain Shah
Cementoblastoma is a relatively rare benign tumour. The clinicopathologic features, radiological findings, treatment and prognosis are reported here in a 10-year-old girl who presented to us from Afghanistan. The tumor was managed surgically and the histopathology confirmed the diagnosis of cementoblastoma. There was no evidence of recurrence at one year of follow up.
January 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28711848/long-term-litter-manipulation-alters-soil-organic-matter-turnover-in-a-temperate-deciduous-forest
#7
Jun-Jian Wang, Oliva Pisani, Lisa H Lin, Olivia O Y Lun, Richard D Bowden, Kate Lajtha, André J Simpson, Myrna J Simpson
Understanding soil organic matter (OM) biogeochemistry at the molecular-level is essential for assessing potential impacts from management practices and climate change on shifts in soil carbon storage. Biomarker analyses and nuclear magnetic resonance (NMR) spectroscopy were used in an ongoing detrital input and removal treatment experiment in a temperate deciduous forest in Pennsylvania, USA, to examine how above- and below-ground plant inputs control soil OM quantity and quality at the molecular-level. From plant material to surface soils, the free acyclic lipids and cutin, suberin, and lignin biomarkers were preferentially retained over free sugars and free cyclic lipids...
July 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28710549/cervical-varicosities-may-predict-placenta-accreta-in-posterior-placenta-previa-a-magnetic-resonance-imaging-study
#8
Hiroki Ishibashi, Morikazu Miyamoto, Hiroshi Shinnmoto, Wakana Murakami, Hiroaki Soyama, Masaya Nakatsuka, Takahiro Natsuyama, Masashi Yoshida, Masashi Takano, Kenichi Furuya
PURPOSE: The aim of this study was to prenatally predict placenta accreta in posterior placenta previa using magnetic resonance imaging (MRI). METHODS: This retrospective study was approved by the Institutional Review Board of our hospital. We identified 81 patients with singleton pregnancy who had undergone cesarean section due to posterior placenta previa at our hospital between January 2012 and December 2016. We calculated the sensitivity and specificity of several well-known findings, and of cervical varicosities quantified using magnetic resonance imaging, in predicting placenta accreta in posterior placenta previa...
July 14, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28710361/the-dental-phenotype-of-hairless-dogs-with-foxi3-haploinsufficiency
#9
Kornelius Kupczik, Alexander Cagan, Silke Brauer, Martin S Fischer
Hairless dog breeds show a form of ectodermal dysplasia characterised by a lack of hair and abnormal tooth morphology. This has been attributed to a semi-dominant 7-base-pair duplication in the first exon of the forkhead box I3 gene (FOXI3) shared by all three breeds. Here, we identified this FOXI3 variant in a historical museum sample of pedigreed hairless dog skulls by using ancient DNA extraction and present the associated dental phenotype. Unlike in the coated wild type dogs, the hairless dogs were characterised in both the mandibular and maxillary dentition by a loss of the permanent canines, premolars and to some extent incisors...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28707409/chilling-responsive-demeter-like-dna-demethylase-mediates-in-poplar-bud-break
#10
Daniel Conde, Anne-Laure Le Gac, Mariano Perales, Christopher Dervinis, Matias Kirst, Stéphane Maury, Pablo González-Melendi, Isabel Allona
Annual dormancy-growth cycle is a developmental and physiological process essential for the survival of deciduous trees in temperate and boreal forests. Seasonal control of shoot growth in woody perennials requires specific genetic programs responding to environmental signals. The environmental-controlled mechanisms that regulate the shift between winter dormancy and the growth promoting genetic programs are still unknown. Here, we show that dynamics in genomic DNA (gDNA) methylation levels are involved in the regulation of dormancy-growth cycle in poplar...
July 13, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28705206/digital-evaluation-of-nasal-changes-induced-by-rapid-maxillary-expansion-with-different-anchorage-and-appliance-design
#11
Rosamaria Fastuca, Paola Lorusso, Manuel O Lagravère, Ambra Michelotti, Marco Portelli, Piero Antonio Zecca, Vincenzo D' Antò, Angela Militi, Riccardo Nucera, Alberto Caprioglio
BACKGROUND: Scientific evidence showed that rapid maxillary expansion (RME) affects naso-maxillary complex, increasing nasal width and volume. This study aimed to evaluate nasal changes induced by rapid maxillary expansion with different anchorage and appliance design by using low dose and cone beam computed tomography. METHODS: A total of 44 patients (20 males, mean age 8y 8 m ± 1y 2 m; 24 females mean age 8y 2 m ± 1y 4 m) were included in the investigation and divided into three groups according to the appliance: Hyrax-type expander anchored to permanent teeth, modified Hyrax-type expander anchored to deciduous teeth, modified Haas-type expander anchored to deciduous teeth...
July 14, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28702056/prevalence-of-dental-caries-and-fluoride-concentration-of-drinking-water-a-systematic-review
#12
REVIEW
Fatemeh Goodarzi, Amir Hossein Mahvi, Mostafa Hosseini, Ramin Nabizadeh Nodehi, Mohammad Javad Kharazifard, Mina Parvizishad
BACKGROUND: The objective of this study was to systematically review prevalence of dental caries at different water fluoride levels and emphasize fluoride concentration of drinking water and prevalence of dental caries. MATERIALS AND METHODS: A comprehensive study was conducted using PubMed database. Inclusion criteria were predefined and some articles fulfilled these criteria. Study validity was assessed by some checklists. Surveys were conducted to determine prevalence of dental caries among individuals...
May 2017: Dental Research Journal
https://www.readbyqxmd.com/read/28702027/decreased-human-leukocyte-antigen-g-expression-by-mir-133a-contributes-to-impairment-of-proinvasion-and-proangiogenesis-functions-of-decidual-nk-cells
#13
Wenwei Guo, Liang Fang, Bo Li, Xifeng Xiao, Shuqiang Chen, Jun Wang, Fang Yang, Lihua Chen, Xiaohong Wang
Human leukocyte antigen (HLA)-G plays a crucial role in conferring fetal-maternal tolerance and ensuring a successful pregnancy. CD56(bright) natural killer (NK) cells accumulate at the maternal decidua in large numbers during pregnancy and are found in direct contact with fetal trophoblasts. There are increasing evidences that decidual NK (dNK) cells are crucial for pregnancy. However, the regulation of dNK cells is mostly unknown. Here, we provide evidences that the secretion function of dNK cells in recurrent spontaneous abortion was impaired, which led to the impairment of the proinvasion and proangiogenesis functions of dNK cells...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28701634/mitochondria-regulate-the-differentiation-of-stem-cells-from-human-exfoliated-deciduous-teeth
#14
Hiroki Kato, Thanh Thi Mai Pham, Haruyoshi Yamaza, Keiji Masuda, Yuta Hirofuji, Xu Han, Hiroshi Sato, Tomoaki Taguchi, Kazuaki Nonaka
Stem cells from human exfoliated deciduous teeth (SHED) are isolated from the dental pulp tissue of primary teeth and can differentiate into neuronal cells. Although SHED are a desirable type of stem cells for transplantation therapy and for the study of neurological diseases, a large part of the neuronal differentiation machinery of SHED remains unclear. Recent studies have suggested that mitochondrial activity is involved in the differentiation of stem cells. In the present work, we investigated the neuronal differentiation machinery of SHED by focusing on mitochondrial activity...
July 11, 2017: Cell Structure and Function
https://www.readbyqxmd.com/read/28700601/new-regression-formula-to-estimate-the-prenatal-crown-formation-time-of-human-deciduous-central-incisors-derived-from-a-roman-imperial-sample-velia-salerno-italy-i-ii-cent-ce
#15
Alessia Nava, Luca Bondioli, Alfredo Coppa, Christopher Dean, Paola Francesca Rossi, Clément Zanolli
The characterization and quantification of human dental enamel microstructure, in both permanent and deciduous teeth, allows us to document crucial growth parameters and to identify stressful events, thus contributing to the reconstruction of the past life history of an individual. Most studies to date have focused on the more accessible post-natal portion of the deciduous dental enamel, even though the analysis of prenatal enamel is pivotal in understanding fetal growth, and reveals information about the mother's health status during pregnancy...
2017: PloS One
https://www.readbyqxmd.com/read/28699387/low-laser-therapy-a-strategy-to-promote-the-osteogenic-differentiation-of-deciduous-dental-pulp-stem-cells-from-cleft-lip-and-palate-patients
#16
Carla Cristina Gomes Pinheiro, Milena Correa de Pinho, Ana Cecília Corrêa Aranha, Eduardo Fregnani, Daniela Franco Bueno
Dental pulp stem cells (DPSC) can undergo several types of differentiation, including osteogenic differentiation. One osteogenesis-inducing factor that has been previously described is "in vitro" low-level laser irradiation of cells. Laser irradiation promotes the acceleration of bone matrix mineralization of the cell strain. However, no consensus exists regarding the dose and treatment time. We used DPSC strains from cleft lip and palate patients because new bone tissue engineering strategies have used DPSC in preclinical and clinical trials for the rehabilitation of alveolar bone clefts...
July 12, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28697775/the-relationship-between-vitamin-d-receptor-gene-polymorphism-and-deciduous-tooth-decay-in-chinese-children
#17
Yuan-Yuan Kong, Jian-Mao Zheng, Wen-Juan Zhang, Qian-Zhou Jiang, Xue-Chao Yang, Miao Yu, Su-Juan Zeng
BACKGROUND: In the present study, we explored the link between vitamin D receptor (VDR) BsmI, TaqI, ApaI and FokI gene polymorphisms with deciduous tooth decay in Chinese children. METHODS: Our study included 380 Chinese children aged 4-7 years, whose DNA sample was collected from the buccal mucosa. VDR gene polymorphisms was determined by PCR-RFLP. RESULTS: The adjusted logistic regression analysis demonstrated that BsmI containing the Bb genotype was linked with the increased risk of deciduous tooth decay (OR = 1...
July 11, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28695206/a-fourth-denisovan-individual
#18
Viviane Slon, Bence Viola, Gabriel Renaud, Marie-Theres Gansauge, Stefano Benazzi, Susanna Sawyer, Jean-Jacques Hublin, Michael V Shunkov, Anatoly P Derevianko, Janet Kelso, Kay Prüfer, Matthias Meyer, Svante Pääbo
The presence of Neandertals in Europe and Western Eurasia before the arrival of anatomically modern humans is well supported by archaeological and paleontological data. In contrast, fossil evidence for Denisovans, a sister group of Neandertals recently identified on the basis of DNA sequences, is limited to three specimens, all of which originate from Denisova Cave in the Altai Mountains (Siberia, Russia). We report the retrieval of DNA from a deciduous lower second molar (Denisova 2), discovered in a deep stratigraphic layer in Denisova Cave, and show that this tooth comes from a female Denisovan individual...
July 2017: Science Advances
https://www.readbyqxmd.com/read/28694502/g-protein-coupled-receptor-64-is-required-for-decidualization-of-endometrial-stromal-cells
#19
Jung-Yoon Yoo, Jong Il Ahn, Tae Hoon Kim, Sungryul Yu, Ji Yeon Ahn, Jeong Mook Lim, Jae-Wook Jeong
Although GPR64 has an important role for male fertility, its physiological roles in the female reproductive system are still unknown. In the present study, immunohistochemical analysis reveals a spatiotemporal expression of GPR64 in the uterus during early pregnancy. Observation of remarkable induction of GPR64 expression in uterine decidual cells points to its potential physiological significance on decidualization. The decidualization of uterine stromal cells is a key event in implantation. Progesterone (P4) signaling is crucial for the decidualization of the endometrial stromal cells for successful pregnancy...
July 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28693893/emerging-role-for-dysregulated-decidualization-in-the-genesis-of-preeclampsia
#20
Kirk P Conrad, Maria Belen Rabaglino, Emiel D Post Uiterweer
In normal human placentation, uterine invasion by trophoblast cells and subsequent spiral artery remodeling depend on cooperation among fetal trophoblasts and maternal decidual, myometrial, immune and vascular cells in the uterine wall. Therefore, aberrant function of anyone or several of these cell-types could theoretically impair placentation leading to the development of preeclampsia. Because trophoblast invasion and spiral artery remodeling occur during the first half of pregnancy, the molecular pathology of fetal placental and maternal decidual tissues following delivery may not be informative about the genesis of impaired placentation, which transpired months earlier...
June 9, 2017: Placenta
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