bluuebunny/crossref_metadata_2025_split huggingface dataset:
Poor diet predicts periodontal disease development in 11‐year follow‐up study
Authors: Jauhiainen Leena Maria , Ylöstalo Pekka Viljo , Knuuttila Matti , Männistö Satu , Kanerva Noora , Suominen Anna Liisa 
Published: December 2019

AbstractObjectiveTo study whether diets based on the Nordic food culture and dietary recommendations are related to periodontal disease development.MethodsThe data were based on the Health 2000 and 2011 Surveys (BRIF8901). The participants were aged 30‐49 in 2000, periodontally healthy, without diabetes or rheumatoid arthritis. Analyses were made in the total study population (n = 240) and among nonsmokers (n = 193) in 2011. Periodontal condition was determined in a clinical examination, and the number of teeth with deepened (≥4 mm) periodontal pockets in 2011 was used as an outcome. The diet was measured using a validated food frequency questionnaire and the quality of the diet using the Baltic Sea Diet Score (BSDS) and the Recommended Finnish Diet Score (RFDS) in 2000. Incidence rate ratios (IRRs) and 95% confidence intervals (CIs) were estimated using Poisson regression models.ResultsLow scores (indicating poor diet) in both the BSDS and the RFDS were associated with the development of deepened periodontal pockets. Among nonsmokers, the associations between low dietary scores and the number of teeth with deepened periodontal pockets were stronger than among the whole study population.ConclusionsAmong middle‐aged adults, poor‐quality diet appears to be associated with the development of periodontal disease.
PLCε1 suppresses tumor growth by regulating murine T cell mobilization
Authors: Strazza M , Adam K , Smrcka A V , Lerrer S , Mor A 
Published: December 2019

Summary
Phospholipase C epsilon 1 (PLCε1) is a unique member of the phospholipase family, in that it also functions as a guanine nucleotide exchange factor (GEF) for the small GTPase Rap1. It is this function as a Rap1 GEF that gives PLCε1 an essential role in chemokine-mediated T cell adhesion. We have utilized a syngeneic tumor model, MC38 cells in C57BL/6 mice, and observed that tumors grow larger and more quickly in the absence of PLCε1. Single-cell analysis revealed an increased CD4+/CD8+ ratio in the spleens, lymph nodes and tumors of PLCε1 knock-out tumor-bearing mice. T cells isolated from PLCε1 knock-out mice were less activated by multiple phenotypical parameters than those from wild-type mice. We additionally noted a decrease in expression of the chemokine receptors C-X-C chemokine receptor type 4 (CXCR4) and C-C motif chemokine receptor 4 (CCR4) on CD4+ T cells from the spleens, lymph nodes and tumors of PLCε1 knock-out mice compared to wild-type mice, and diminished migration of PLCε1-depleted CD3+ T cells towards stromal cell-derived factor (SDF)-1α. Based on these results, we conclude that PLCε1 is a potential regulator of tumor-infiltrating lymphocytes, functioning, at least in part, at the level of T cell trafficking and recruitment.
Survival outcomes for head and neck cancer patients with N3 cervical nodal metastases
Authors: Virk Jagdeep S. , Ingle Manasi , Podesta Christine M. , Gujral Dorothy M. , Awad Zaid 
Published: December 2019

AbstractBackgroundManagement of metastatic N3 nodal disease from primary head and neck squamous cell carcinoma (HNSCC) is controversial. Recently, there has been a move to observation of the neck for those who achieve complete response (CR) after chemoradiotherapy (CRT). We sought to determine survival outcomes for N3 nodal disease, particularly for patients with human papilloma virus (HPV)‐positive HNSCC.MethodsWe carried out a systematic search of MEDLINE and Embase for articles between 01/2008 and 12/2017. Articles on N3 nodal disease in HNSCC patients treated with CRT or surgery + adjuvant RT/CRT were included if they reported on oropharyngeal or HPV+ subgroups. Local control (LC), nodal control (NC), distant metastasis‐free survival (DMFS), disease‐free survival (DFS) or overall survival (OS) was assessed.ResultsNine studies met the inclusion criteria. Eight of these studies (N = 5304) allowed further comparison: 4 were on CRT, 2 on surgery + RT/CRT and 2 on both. Four of these eight studies and the remaining included study reported on residual nodal disease on histology after neck dissection (ND) following CRT. Patients treated with CRT achieved LC rates of 77%‐94% at 2‐3 years; those who had a CR had LC of >90%. Better NC was noted in patients who achieved a CR. Three‐year OS was better for HPV+ HNSCC (range, 55.2%‐81%). Patients with CR had better survival outcomes (DMFS 77% at 3 years vs 69.8% for HPV+; OS 68.9% at 3 years vs 55.2% for HPV+). Primary surgery demonstrated similar survival for HPV+ vs HPV− and better survival in oropharyngeal cancers. Five‐year DFS rates varied from 30% to 87%, and OS from 26.6% to 84%. For patients with non‐CR, positive histology rates varied from 27.3% to 100%, with average positive histology rates of 27.3% in HPV+ patients with non‐CR vs 60% for HPV− patients with non‐CR.ConclusionThe current literature does not support the de‐escalation of treatment with HPV− N3 disease. Observation of HPV+ patients who achieve a CR post‐CRT is reasonable but further prospective studies are required given the heterogeneity and risk of bias within these current studies. Planned ND should remain standard of care for non‐CR cohort.
Antagonistic effect of natural habitat conversion on community adjustment to climate warming in nonbreeding waterbirds
Authors: Gaget Elie , Galewski Thomas , Jiguet Frédéric , Guelmami Anis , Perennou Christian , Beltrame Coralie , Le Viol Isabelle 
Published: December 2019

AbstractAlthough the impacts of climate and land‐use changes on biodiversity have been widely documented, their joint effects remain poorly understood. We evaluated how nonbreeding waterbird communities adjust to climate warming along a gradient of land‐use change. Using midwinter waterbird counts (132 species) at 164 major nonbreeding sites in 22 Mediterranean countries, we assessed the changes in species composition from 1991 to 2010, relative to thermal niche position and breadth, in response to regional and local winter temperature anomalies and conversion of natural habitats. We observed a low‐level, nonsignificant community adjustment to the temperature increase where natural habitat conversion occurred. At the sites affected by natural habitat conversion, the relative increase of warm‐dwelling species in response to climate warming was 6 times lower and the relative species decline was 3 times higher than in the sites without natural habitat conversion. We found no evidence of community adjustment to climate warming when natural habitat conversion was >5% over 15 years. This strong negative effect suggests an antagonistic interaction between climate warming and habitat change. These results underline the importance of habitat conservation in community adjustment to climate warming.
Individual differences in motor development during early childhood: An MEG study
Authors: Johnson Blake , Jobst Cecilia , Al‐Loos Rita , He Wei , Cheyne Douglas 
Published: December 2019

AbstractIn a previous study, we reported the first measurements of pre‐movement and sensorimotor cortex activity in preschool age children (ages 3–5 years) using a customized pediatric magnetoencephalographic system. Movement‐related activity in the sensorimotor cortex differed from that typically observed in adults, suggesting that maturation of cortical motor networks was still incomplete by late preschool age. Here we compare these earlier results to a group of school age children (ages 6–8 years) including seven children from the original study measured again two years later, and a group of adults (mean age 31.1 years) performing the same task. Differences in movement‐related brain activity were observed both longitudinally within children in which repeated measurements were made, and cross‐sectionally between preschool age children, school age children, and adults. Movement‐related mu (8–12 Hz) and beta (15–30 Hz) oscillations demonstrated linear increases in amplitude and mean frequency with age. In contrast, movement‐evoked gamma synchronization demonstrated a step‐like transition from low (30–50 Hz) to high (70–90 Hz) narrow‐band oscillations, and this occurred at different ages in different children. Notably, pre‐movement activity (‘readiness fields’) observed in adults was absent in even the oldest children. These are the first direct observations of brain activity accompanying motor responses throughout early childhood, confirming that maturation of this activity is still incomplete by mid‐childhood. In addition, individual children demonstrated markedly different developmental trajectories in movement‐related brain activity, suggesting that individual differences need to be taken into account when studying motor development across age groups.
Role of strain imaging for assessment of myocardial viability in symptomatic myocardial infarction with single vessel disease: An observational study
Authors: Bhutani Mohit , Vatsa Deepankar , Rahatekar Parag , Verma Deepak , Nath Ranjit K. , Pandit Neeraj 
Published: December 2019

AbstractPurposeTo study and evaluate the predictive value of strain imaging parameters in patients undergoing viability assessment postmyocardial infarction (MI) in comparison with Dobutamine stress echocardiography (DSE) alone.MethodsThis was a prospective observational study (October, 2016–March, 2018), which recruited 100 symptomatic patients with MI, and angiographically proven single vessel disease, LV dysfunction with severe hypokinesia/akinesia on 2D echocardiography and viability proven by baseline DSE. Patients undergoing primary PCI were excluded. Patients were recruited in two groups: DSE alone (first group) and strain imaging with DSE (second group). Revascularization was done in all patients. Patients were assessed at 3 months for functional recovery by 2D echocardiography.ResultsOn 3 month follow‐up after revascularization, 37 patients (74%) in first group and 33 patients (66.67%) in second group had functional recovery. Dobutamine‐stimulated strain parameters such as circumferential strain (CS; P = .005), radial velocity (RV; P < .001), longitudinal strain (LS; P < .001), and longitudinal strain rate (LSR; P < .001) were found to be a significant predictor of viability. The greatest area under the curve (AUC) for the ROC curves was obtained for low dose dobutamine RV (AUC = 0.92), low dose dobutamine LS (AUC = 0.94), and low dose dobutamine LSR (AUC = 0.88). Positive predictive value of the combination of low dose DSE with strain parameters (RV‐97.2%, LS‐97.4%, and LSR‐87.5%) for myocardial viability was significantly higher than low dose DSE positive/low dose strain parameters negative patients as well as low dose DSE group alone.ConclusionEvaluation of strain parameters with low dose DSE is clinically feasible for the detection of myocardial viability and adds incremental value to the subjective and semiquantitative wall‐motion scoring. LS at low dose DSE with WMSI was found to have the highest positive predictive value.
Labial pyogenic granuloma related to trauma: A case report and mini‐review
Authors: Banjar Assim , Abdrabuh Abrar , Al‐Habshi Manaf , Parambil Mohamed , Bastos Pedro , Abed Hassan 
Published: December 2019

AbstractThis paper reports a case of a labial pyogenic granuloma in the lower lip of a 15‐year‐old boy due to chronic trauma from the maxillary left central incisor. The case report is based on the CARE (CAse REport) Checklist developed by the Joanna Briggs Institute. A further aim is to present a mini‐review about the link between labial pyogenic granuloma and trauma, through searching in three databases (MEDLINE, EMBASE, and Global Health) using a predefined search strategy and keywords. The Cochrane Library and PROSPERO were also searched for published and ongoing systematic reviews, respectively. Only five case reports were found that discussed the link between labial pyogenic granuloma and trauma. Chronic trauma was found to be the most common cause of pyogenic granuloma affecting the lip. Excisional biopsy was the preferable treatment due to the advantage of allowing histopathologic assessment, which is necessary to establish a definitive diagnosis. Dentists advise to include labial pyogenic granuloma in their differential diagnosis (ie, mucocele, cyst, abscess, hematoma, minor salivary gland trauma or tumor) when assessing lesions in the upper and lower lips, in particular when related to a history of trauma.
No‐tillage and ryegrass grazing effects on stocks, stratification and lability of carbon and nitrogen in a subtropical Umbric Ferralsol
Authors: Ramalho B. , Dieckow J. , Barth G. , Simon P. L. , Mangrich A. S. , Brevilieri R. C. 
Published: December 2019

AbstractNo‐tillage farming combined with temporary cattle grazing is becoming a common practice in parts of South America. We quantified the effects of no‐tillage and winter grazing of annual ryegrass (Lolium multiflorum Lam.) on soil carbon and nitrogen stock, stratification ratio (concentration in 0–5 to 10–20‐cm layer) and lability (based on particulate organic matter, POM), relative to conventional tillage or ungrazed ryegrass. A 9‐year‐old experiment was conducted in a southern Brazilian Ferralsol. Soil under no‐tillage accumulated 1.11 Mg C ha−1 year−1 and 0.10 Mg N ha−1 year−1 to 100‐cm depth relative to conventional tillage when ryegrass was not grazed, and also increased the stratification ratio of carbon (1.48 vs. 1.11) and nitrogen (1.66 vs. 1.17). The carbon and nitrogen lability was also greater in no‐tillage soil, as carbon and nitrogen stocks increased proportionally more in sand‐POM than in silt or clay size fractions (carbon lability index = 1.57 vs. 1.00; nitrogen lability index = 1.57 vs. 1.00). Semiquinone concentrations in physical fractions were 4–28% smaller in no‐tillage, suggesting less organic matter aromaticity in this treatment. Grazing, however, caused no further improvement of stocks of carbon and nitrogen in the 0–100‐cm layer of no‐tillage soil (e.g., 209 vs. 212 Mg C ha−1, ns), or enhancement of stratification or lability of those elements, relative to ungrazed ryegrass. Overall, no‐tillage effectively promoted soil carbon and nitrogen accumulation and lability in this subtropical Ferralsol, whereas grazing did not compromise the gains of no‐tillage.Highlights
Capacity of no‐tillage and grazing to enhance stocks, stratification and lability of soil C and N.
C sequestration with no‐tillage is being debated, and little is known when combined with grazing.
No‐tillage accumulated 1.11 Mg C ha−1 year−1 but grazing promoted no further C accumulation.
No‐tillage effectively accumulated C in soil and grazing did not compromise such gain of no‐tillage.
Population epigenetic divergence exceeds genetic divergence in the Eastern oyster Crassostrea virginica in the Northern Gulf of Mexico
Authors: Johnson Kevin M. , Kelly Morgan W. 
Published: December 2019

AbstractPopulations may respond to environmental heterogeneity via evolutionary divergence or phenotypic plasticity. While evolutionary divergence occurs through DNA sequence differences among populations, plastic divergence among populations may be generated by changes in the epigenome. Here, we present the results of a genome‐wide comparison of DNA methylation patterns and genetic structure among four populations of Eastern oyster (Crassostrea virginica) in the northern Gulf of Mexico. We used a combination of restriction site‐associated DNA sequencing (RADseq) and reduced representation bisulfite sequencing (RRBS) to explore population structure, gene‐wide averages of FST, and DNA methylation differences between oysters inhabiting four estuaries with unique salinity profiles. This approach identified significant population structure despite a moderately low FST (0.02) across the freshwater boundary of the Mississippi river, a finding that may reflect recent efforts to restore oyster stock populations. Divergence between populations in CpG methylation was greater than for divergence in FST, likely reflecting environmental effects on DNA methylation patterns. Assessment of CpG methylation patterns across all populations identified that only 26% of methylated DNA was intergenic; and, only 17% of all differentially methylated regions (DMRs) were within these same regions. DMRs within gene bodies between sites were associated with genes known to be involved in DNA damage repair, ion transport, and reproductive timing. Finally, when assessing the correlation between genomic variation and DNA methylation between these populations, we observed population‐specific DNA methylation profiles that were not directly associated with single nucleotide polymorphisms or broader gene‐body mean FST trends. Our results suggest that C. virginica may use DNA methylation to generate environmentally responsive plastic phenotypes and that there is more divergence in methylation than divergence in allele frequencies.
Verteporfin inhibits oxidative phosphorylation and induces cell death specifically in glioma stem cells
Authors: Kuramoto Kenta , Yamamoto Masahiro , Suzuki Shuhei , Sanomachi Tomomi , Togashi Keita , Seino Shizuka , Kitanaka Chifumi , Okada Masashi 
Published: December 2019

Glioblastoma multiforme (GBM) is the most malignant primary brain tumour in adults. Since glioma stem cells (GSCs) are associated with therapeutic resistance as well as the initiation and recurrence in GBM, therapies targeting GSCs are considered to be effective for long‐term survival in GBM. Several reports suggested that oxidative phosphorylation (OXPHOS) of cancer stem cells is important for their survival; however, the requirement of OXPHOS in GSCs remains unclear. Few effective and safe agents that target GSC mitochondria are available in clinical settings. In this study, we demonstrated that GSCs had high OXPHOS activity compared with isogenic differentiated GSCs and that GSC survival depended on their OXPHOS activity. Remarkably, we showed that complexes III and IV had broad therapeutic windows and that the expression levels of mitochondrial DNA‐coded components of complexes III and IV were elevated in GSCs compared with differentiated GSCs. Moreover, our search of the Food and Drug Administration‐approved drugs for those targeting GSC mitochondria revealed that verteporfin (Visudyne®), a drug approved for macular degeneration, was a novel GSC‐specific cytotoxic compound that reduced OXPHOS activity. Importantly, the cytotoxic effect of verteporfin was specific to GSCs without any toxicity to normal cells, and the IC50 of approximately 200 nm was ten times less than its maximum blood concentration in humans. Overall, these findings indicated that high mitochondrial OXPHOS of GSCs is a potential GSC‐specific vulnerability and that clinically available drugs, such as verteporfin, might become novel GSC‐specific cytotoxic agents.
Long‐term trends and drivers of larval phenology and abundance of dominant brachyuran crabs in the Gulf of St. Lawrence (Canada)
Authors: Émond Kim , Sainte‐Marie Bernard , Bêty Joël 
Published: December 2019

AbstractClimate change has led to major shifts in the timing of biological events, with many studies demonstrating earlier phenology in response to warming. However, few of these studies have investigated the effects of climate change on the phenology of larvae in marine species. Phenological shifts can result in mismatches between consumers and prey and hence affect growth and survival of individuals, and ultimately population demography. We investigated the temporal changes in phenology and abundance of the larvae of dominant brachyuran crabs in the southern Gulf of St. Lawrence (eastern Canada) based on plankton collections spanning 1982–2012. The Gulf of St. Lawrence has warmed since the early 1990s, and our analyses revealed that larvae of snow crab (Chionoecetes opilio) and toad crabs (Hyas spp.) exhibited a significant trend towards earlier phenology over the 30‐year study period. This shift in phenology appeared to be a consequence of the effect of climate warming on both the timing of hatching and larval development rate. Larval abundance responded differently by crab taxon to climate warming, likely due to differences in thermal tolerance. The warming trend was unfavourable to snow crab, which is the most cold‐adapted and stenothermic of the taxa examined in this study. The abundance of snow crab larvae was lower when sea ice retreat occurred earlier than day 110 of the year and sea surface temperature was higher than 8.5°C. On the other hand, larval abundance of rock crab (Cancer irroratus), which prefers higher temperatures, was positively related to surface temperature.
Changes in the spawning habitat of two small pelagic fish in the Northwestern Mediterranean
Authors: Maynou Francesc , Sabatés Ana , Raya Vanesa 
Published: December 2019

AbstractWe investigated the effects of three sea surface oceanographic variables (temperature, salinity, and chlorophyll a) on the abundance of eggs and larvae of two summer‐spawning species in the NW Mediterranean Sea, the anchovy Engraulis encrasicolus and the round sardinella Sardinella aurita, based on data from ichthyoplankton surveys carried out in the 1980s, 2000s, and 2010s. The environmental data showed an increase in seawater temperature and salinity along time, coupled with a decrease in chlorophyll a (proxy for primary production). These long‐term directional changes in environmental conditions helped explain the important reduction observed in the abundance of eggs and larvae of anchovy, as well as shrinking of spawning habitat in this species. At the same time, the probability of occurrence of round sardinella has increased from practically zero in the 1980s to probabilities near 1 along the coastal area of the study region in the two decades of the 21st century. Given that the trends observed in the environmental variables along the three decades of study are expected to continue during the 21st century, as a consequence of climate change, the spawning habitat of anchovy is expected to continue decreasing, while round sardinella habitat can expand. Considering that anchovy is of high commercial importance in NW Mediterranean fisheries, while round sardinella has very low commercial interest, our results show that the viability of small pelagic fisheries in the area may be compromised.