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Li Wu, Jie Li, Hui Li Xu, Bo Xu, Xian Hong Tong, Joanne Kwak-Kim, Yu Sheng Liu
PROBLEM: We aim to investigate a possible role of IL-7/IL-7R signaling pathway in recurrent pregnancy losses (RPL). MATERIAL AND METHODS: Using the abortion-prone (AP) and non-abortion-prone (NP) mice model, fetal resorption rates (FRR), Th17 and Treg cells-related factors, and the effect of IL-7 and IL-7R antagonist were investigated by flow cytometry, quantitative real-time PCR, and immunohistochemistry. IL-7 and IL-7R expressions in human decidua were investigated by immunohistochemistry...
October 21, 2016: American Journal of Reproductive Immunology: AJRI
Derek Richards
Data sourcesPubMed Central, CINAHL, Embase and reference lists of identified articles.Study selectionObservational and experimental studies published in English where breastfeeding was the exposure and development of caries was the outcome of interest were considered. Two reviewers independently selected studies for inclusionData extraction and synthesisStudy quality was assessed independently by two researchers using the Newcastle Ottawa Scale (NOS). Key data items, exposure and outcome definitions and effect estimates (odds ratios (OR), relative risks, prevalence ratios) with 95% Confidence Interval (95%CI) were abstracted where available for inclusion in a meta-analysis...
September 2016: Evidence-based Dentistry
Travis Rayne Pickering, Jason L Heaton, Morris B Sutton, Ron J Clarke, Kathleen Kuman, Jess Hutton Senjem, C K Brain
We describe 14 hominin teeth and tooth fragments excavated recently from Swartkrans Cave (South Africa). The fossils derive from Members 1 (Lower Bank) and 3, from the Member 2/3 interface and from two deposits not yet assigned to member (the "Talus Cone Deposit" and the "Underground North Excavation" [UNE]) of the Swartkrans Formation, and include the first hominin fossil from the UNE, the two smallest Paranthropus robustus deciduous maxillary second molars in the entire hominin fossil record, and one of the smallest P...
November 2016: Journal of Human Evolution
Ratilal Lalloo, Lisa M Jamieson, Diep Ha, Liana Luzzi
OBJECTIVE: Tooth decay is related to poverty, measured at individual and neighbourhood levels. It is however uncertain if living in an advantaged neighbourhood reduces tooth decay similarly in Australian Indigenous and non-Indigenous children. METHODS: This study describes tooth decay by neighbourhood characteristics and Indigenous status, and examines inequalities by Indigenous status. RESULTS: In deciduous dentition the percentage of children with tooth decay and untreated decay decreased on average 26% and 20% respectively in the non-Indigenous sample from poor to affluent neighbourhoods...
2016: Journal of Health Care for the Poor and Underserved
Diep H Ha, Loc G Do, Liana Luzzi, Gloria C Mejia, Lisa Jamieson
OBJECTIVE: Dental diseases have shown to be influenced by area-level socioeconomic status. This study aims to assess the effects of change in area-level SES on the oral health of Australian Indigenous children. METHODS: Data were collected from a national surveillance survey for children's dental health at two points of time (2000-2002/2007-2010). The study examines caries experienced by area-level SES and whether changes in area-level SES (stable-high, upwardly-mobile, downwardly-mobile and stable low) affects caries experience...
2016: Journal of Health Care for the Poor and Underserved
C Guillermo Bueno, Scott N Williamson, Isabel C Barrio, Ágústa Helgadóttir, David S HiK
In tundra ecosystems, bryophytes influence soil processes directly and indirectly through interactions with overstory shrub species. We experimentally manipulated moss cover and measured seasonal soil properties and processes under two species of deciduous shrubs with contrasting canopy structures, Salix planifolia pulchra and Betula glandulosa-nana complex. Soil properties (seasonal temperature, moisture and C:N ratios) and processes (seasonal litter decomposition and soil respiration) were measured over twelve months...
2016: PloS One
R Askerov
High incidence of missed abortion induces to search for its causes. Apart from genetic and anatomic uterine factors, the state of the decidual endometrium and implantation zone of chorionic structures of the gestational sac are of particular interest. Direct visualization of the intact decidual endometrium is possible with embryoscopy, however, there is lack of presented data of normal and pathological signs of the endometrium during pregnancy. This paper describes the changes of the endometrium in missed abortion obtained by hysteroscopy in 160 women with nonprogressive pregnancy after ART protocols...
October 2016: Gynecological Endocrinology
K Tolidis, C Boutsiouki, P Gerasimou
AIM: Carbomer cement represents a novel glass-ionomer which gradually mineralises into fluoroapatite. Purpose of this study was to evaluate microleakage around restorations in deciduous teeth made with composite resin, conventional glass-ionomer cement, resin-modified glass-ionomer cement and carbomer/fluoroapatite-enhanced glass-ionomer cement. MATERIALS AND METHODS: A group of 40 primary upper canines, primary upper and lower molars was divided into 4 groups (n=10)...
September 2016: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
Hicham El Costa, Jordi Gouilly, Jean-Michel Mansuy, Qian Chen, Claude Levy, Géraldine Cartron, Francisco Veas, Reem Al-Daccak, Jacques Izopet, Nabila Jabrane-Ferrat
The outbreak of the Zika Virus (ZIKV) and its association with fetal abnormalities have raised worldwide concern. However, the cellular tropism and the mechanisms of ZIKV transmission to the fetus during early pregnancy are still largely unknown. Therefore, we ex vivo modeled the ZIKV transmission at the maternal-fetal interface using organ culture from first trimester pregnancy samples. Here, we provide evidence that ZIKV strain circulating in Brazil infects and damages tissue architecture of the maternal decidua basalis, the fetal placenta and umbilical cord...
October 19, 2016: Scientific Reports
K Bridget Brosnihan, Victor M Pulgar, Manish S Bharadwaj, Liomar A A Neves, Liliya M Yamaleyeva
BACKGROUND: Cyclooxygenase (COX)-derived prostanoids (PGE2, PGI2) are important contributors to the process of decidualization. Previous studies showed the presence of Ang-(1-7) in the primary and secondary decidualized zones of the implantation site at early pregnancy. Decreased concentrations of Ang-(1-7) were found in the decidualized uterus compared to the non-decidualized uterus of pseudopregnant rats, suggesting that low levels of Ang-(1-7) are required for successful decidualization at early pregnancy...
October 18, 2016: Reproductive Biology and Endocrinology: RB&E
Daniel A Nidzgorski, Sarah E Hobbie
Many urban waterways suffer from excess nitrogen (N) and phosphorus (P), feeding algal blooms, which cause lower water clarity and oxygen levels, bad odor and taste, and the loss of desirable species. Nutrient movement from land to water is likely to be influenced by urban vegetation, but there are few empirical studies addressing this. In this study, we examined whether or not urban trees can reduce nutrient leaching to groundwater, an important nutrient export pathway that has received less attention than stormwater...
July 2016: Ecological Applications: a Publication of the Ecological Society of America
Sara E Kuebbing, Courtney M Patterson, Aimée T Classen, Daniel Simberloff
To maximize limited conservation funds and prioritize management projects that are likely to succeed, accurate assessment of invasive nonnative species impacts is essential. A common challenge to prioritization is a limited knowledge of the difference between the impacts of a single nonnative species compared to the impacts of nonnative species when they co-occur, and in particular predicting when impacts of co-occurring nonnative species will be non-additive. Understanding non-additivity is important for management decisions because the management of only one co-occurring invader will not necessarily lead to a predictable reduction in the impact or growth of the other nonnative plant...
September 2016: Ecological Applications: a Publication of the Ecological Society of America
W Pérez, N Vazquez, R Ungerfeld
The aims of this study were to describe the anatomy of the mouth and pharynx of the pampas deer, and to consider its evolutionary feeding niche according to those characteristics. Gross dissections of the mouth and pharynx were performed in 15 animals, 10 adult females and five young animals under 1 year (three males and two females), all dead by causes unrelated to this anatomical region. The upper lip entered in the constitution of a pigmented nasolabial plane. The masseter muscles weighed 43.8 ± 3.5 g and represented 0...
October 17, 2016: Anatomia, Histologia, Embryologia
Hendrik Terheyden, Falk Wüsthoff
BACKGROUND: Implant patients with congenitally missing teeth share some common charateristics and deserve special attention. METHODS: The PICO question was "In patients with congenitally missing teeth, does an early occlusal rehabilitation with dental implants in comparison to tooth autotransplants, conventional prosthetics on teeth or preservation of deciduous teeth have better general outcomes in terms of survival, success and better patient centered outcomes in terms of quality of life, self-esteem, satisfaction, chewing function?" After electronic database search, a total of 63 relevant studies were eligible, of which 42 qualified for numerical data synthesis, 26 being retrospective studies...
December 2015: Int J Implant Dent
Katelyn M Mika, Vincent J Lynch
Variation in female reproductive traits, such as fertility, fecundity, and fecundability, is heritable in humans, but identifying and functionally characterizing genetic variants associated with these traits has been challenging. Here, we explore the functional significance and evolutionary history of a T/C polymorphism of SNP rs2071473, which we have previously shown is an eQTL for TAP2 and significantly associated with fecundability (time to pregnancy). We replicated the association between the rs2071473 genotype and TAP2 expression by using GTEx data and demonstrated that TAP2 is expressed by decidual stromal cells at the maternal-fetal interface...
September 24, 2016: American Journal of Human Genetics
Ricardo C Cavalli, Ana Sofia Cerdeira, Elizabeth Pernicone, Henri A Korkes, Suzanne D Burke, Augustine Rajakumar, Ravi I Thadhani, Drucilla J Roberts, Manoj Bhasin, S Ananth Karumanchi, Hernan D Kopcow
Decidual NK (dNK) cells, a distinct type of NK cell, are thought to regulate uterine spiral artery remodeling, a process that allows for increased blood delivery to the fetal-placental unit. Impairment of uterine spiral artery remodeling is associated with decreased placental perfusion, increased uterine artery resistance, and obstetric complications such as preeclampsia and intrauterine growth restriction. Ex vivo manipulation of human peripheral blood NK (pNK) cells by a combination of hypoxia, TGFß-1 and 5-aza-2'-deoxycytidine yields cells with phenotypic and in vitro functional similarities to dNK cells, called idNK cells...
2016: PloS One
Kenna Degner, Ronald R Magness, Dinesh M Shah
The uterine vasculature undergoes marked changes during pregnancy in order to provide the necessary increase in blood flow to support growth and nutrition of the uterus, placenta, and developing fetus. Pregnancy-associated uterine vascular transformations are orchestrated by a complex array of endocrine and cellular mechanisms to bring about structural modifications at the maternal-fetal interface, which collectively lead to development of the uteroplacental circulation. Understanding intrinsic uterine vascular remodeling in pregnancy is essential for understanding the physiologic and pathophysiologic regulation of maternal uterine blood flow...
October 12, 2016: Reproductive Sciences
Manuel Luis Wolfson, Julieta Aisemberg, Fernando Correa, Ana María Franchi
BACKGROUND AND PURPOSE: Maternal infections with Gram-negative bacteria are associated with miscarriage and are one of the most common complications during pregnancy. Previous studies from our group have shown that lipopolysaccharide (LPS)-activated infiltrating peripheral blood mononuclear cells (PBMC) into decidual tissue play an important role on the establishment of a local inflammatory process that result in embryo cytotoxicity and early embryo resorption. Moreover, we have also shown that an increased endocannabinoid tone mediates LPS-induced deleterious effects during early pregnancy loss...
October 12, 2016: Journal of Cellular Physiology
Patrick Mahoney, Justyna J Miszkiewicz, Rosie Pitfield, Chris Deter, Debbie Guatelli-Steinberg
The Havers-Halberg Oscillation (HHO) hypothesis links evidence for the timing of a biorhythm retained in permanent tooth enamel (Retzius periodicity) to adult body mass and life history traits across mammals. Potentially, these links provide a way to access life history of fossil species from teeth. Recently we assessed intra-specific predictions of the HHO on human children. We reported Retzius periodicity (RP) corresponded with enamel thickness, and cusp formation time, when calculated from isolated deciduous teeth...
October 11, 2016: Journal of Anatomy
Ying Li, Zhen-Long Kang, Na Qiao, Lian-Mei Hu, Yong-Jiang Ma, Xiao-Huan Liang, Ji-Long Liu, Zeng-Ming Yang
The aim of this study was to investigate the effects of copper ions on decidualization of human endometrial stromal cells (HESCs) cultured in vitro. Firstly, non-toxic concentrations of copper D-gluconate were screened in HESCs based on cell activity. Then, the effects of non-toxic concentrations of copper ions (0~250 μM) were examined on decidualization of human endometrial stromal cells. Our data demonstrated that the mRNA expressions of insulin-like growth factor binding protein (IGFBP-1), prolactin (PRL), Mn-SOD, and FOXO1were down-regulated during decidualization following the treatments with 100 or 250 μM copper ions...
October 10, 2016: Biological Trace Element Research
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