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Negative reciprocity

Pei Lin, Zheng-Fei Yan, Chang-Tian Li, MooChang Kook, Tae-Hoo Yi
A Gram-stain negative, aerobic, motile by flagella, rod-shaped strain (THG-T16T ) was isolated from rhizosphere of Hibiscus syriacus. Growth occurred at 10-40 °C (optimum 28-30 °C), at pH 6.0-8.0 (optimum 7.0) and at 0-1.0% NaCl (optimum 0%). Based on 16S rRNA gene sequence analysis, the near phylogenetic neighbours of strain THG-T16T were identified as Nibribacter koreensis KACC 16450T (98.6%), Rufibacter roseus KCTC 42217T (94.7%), Rufibacter immobilis CCTCC AB 2013351T (94.5%) and Rufibacter tibetensis CCTCC AB 208084T (94...
March 16, 2018: Antonie Van Leeuwenhoek
Matheus D Baldissera, Carine F Souza, Carla Cristina Zeppenfeld, Sharine Descovi, Aleksandro S da Silva, Bernardo Baldisserotto
The phosphotransfer network system, through the enzymes creatine kinase (CK), adenylate kinase (AK), and pyruvate kinase (PK), contributes to efficient intracellular energetic communication between cellular adenosine triphosphate (ATP) consumption and production in tissues with high energetic demand, such as cerebral tissue. Thus, the aim of this study was to evaluate whether aflatoxin B1 (AFB1 ) intoxication in diet negatively affects the cerebral phosphotransfer network related to impairment of cerebral ATP levels in silver catfish (Rhamdia quelen)...
March 15, 2018: Fish Physiology and Biochemistry
Antonietta Messina, Ilaria Bitetti, Francesco Precenzano, Diego Iacono, Giovanni Messina, Michele Roccella, Lucia Parisi, Margherita Salerno, Anna Valenzano, Agata Maltese, Monica Salerno, Francesco Sessa, Giuseppe Davide Albano, Rosa Marotta, Ines Villano, Gabriella Marsala, Christian Zammit, Francesco Lavano, Marcellino Monda, Giuseppe Cibelli, Serena Marianna Lavano, Beatrice Gallai, Roberto Toraldo, Vincenzo Monda, Marco Carotenuto
Introduction: Sleep and migraine share a common pathophysiological substrate, although the underlying mechanisms are unknown. The serotonergic and orexinergic systems are both involved in the regulation of sleep/wake cycle, and numerous studies show that both are involved in the migraine etiopathogenesis. These two systems are anatomically and functionally interconnected. Our hypothesis is that in migraine a dysfunction of orexinergic projections on the median raphe (MR) nuclei, interfering with serotonergic regulation, may cause Non-Rapid Eye Movement parasomnias, such as somnambulism...
2018: Frontiers in Neurology
Banjun Ruan, Zheng Zhu, Zhao Yan, Wei Yang, Dongsheng Zhai, Li Wang, Zichen Ye, Huanyu Lu, An Xiang, Jingwei Liang, Yinghao Jiang, Chengming Xu, Zhenyu Wang, Ming Wei, Xiaoying Lei, Xiaorui Cao, Zifan Lu
BACKGROUND: The reciprocal fate decision of mesenchymal stem cells (MSCs) to either bone or adipocytes is determined by Wnt-related signaling and the glucagon-like peptide-1 receptor (GLP-1R). Azoramide, an ER stress alleviator, was reported to have an antidiabetic effect. In this study, we investigated the function of azoramide in regulating the lineage determination of MSCs for either adipogenic or osteogenic differentiation. METHODS: In this study, microcomputed tomography and histological analysis on bone morphogenetic protein (BMP)2-induced parietal periosteum bone formation assays, C3H10T1/2 and mouse bone marrow MSC-derived bone formation and adipogenesis assays, and specific staining for bone tissue and lipid droplets were used to evaluate the role of azoramide on the lineage determination of MSC differentiation...
March 9, 2018: Stem Cell Research & Therapy
Rolando Robert, Kenneth Francis Rodrigues, Zarinah Waheed, Subbiah Vijay Kumar
This study is aimed at establishing a baseline on the genetic diversity of the Acropora corals of Sabah, North Borneo based on variations in the partial COI and CYB nucleotide sequences. Comparison across 50 shallow-water Acropora morphospecies indicated that the low substitution rates in the two genes were due to negative selection and that rate heterogeneity between them was asymmetric. CYB appeared to have evolved faster than COI in the Acropora as indicated by differences in the rate of pairwise genetic distance, degrees of transition bias (Ts /Tv ), synonymous-to-nonsynonymous rate ratio (dN /dS ), and substitution patterns at the three codon positions...
March 9, 2018: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
Diana Hilda Hohl, Janina Lüscher, Jan Keller, Silke Heuse, Urte Scholz, Aleksandra Luszczynska, Nina Knoll
OBJECTIVES: In romantic relationships, partners can influence each other's health-relevant behaviour by exerting negative social control (e.g., pressuring), however, with mixed success. To elucidate this phenomenon, we examined couples motivated to increase their physical activity and investigated the degree to which both partners exerted negative control on each other, their self-efficacy, reciprocal associations among the two behaviour-specific constructs, and their relationship with moderate-to-vigorous physical activity (MVPA)...
March 8, 2018: British Journal of Health Psychology
Deborah Ejem, Shawn Bauldry, Marie Bakitas, Patricia Drentea
Informal caregivers play a vital role in supporting seriously ill patients. However, informal caregiving is burdensome and can lead to negative health outcomes for the caregiver and the care recipient. The study's aim was to evaluate relationships among caregiver burden, care recipient depressive symptomology, and race. Guided by the social exchange perspective, we examined cross-sectional dyadic data from the National Long-Term Care Survey (N = 1279). Using ordinal logistic regression, we found that higher caregiver-reported objective burden was associated with higher care recipient depressive symptoms ( P < ...
January 1, 2018: Journal of Palliative Care
Debasis Barik, Sonalde Desai, Reeve Vanneman
Research on economic status and adult mortality is often stymied by the reciprocity of this relationship and lack of clarity on which aspect of economic status matters. While financial resources increase access to healthcare and nutrition and reduce mortality, sickness also reduces labor force participation, thereby reducing income. Without longitudinal data, it is difficult to study the linkage between economic status and mortality. Using data from a national sample of 132,116 Indian adults aged 15 years and above, this paper examines their likelihood of death between wave 1 of the India Human Development Survey (IHDS), conducted in 2004-2005 and wave 2, conducted in 2011-2012...
March 2018: World Development
Erik I Svensson
Recent calls for a revision of standard evolutionary theory (SET) are based partly on arguments about the reciprocal causation. Reciprocal causation means that cause-effect relationships are bi-directional, as a cause could later become an effect and vice versa. Such dynamic cause-effect relationships raise questions about the distinction between proximate and ultimate causes, as originally formulated by Ernst Mayr. They have also motivated some biologists and philosophers to argue for an Extended Evolutionary Synthesis (EES)...
2018: Evolutionary Biology
Mamoru Uemura, Masataka Ikeda, Kenji Kawai, Junichi Nishimura, Ichiro Takemasa, Tsunekazu Mizushima, Hirofumi Yamamoto, Mitsugu Sekimoto, Yuichiro Doki, Masaki Mori
INTRODUCTION: Previous reports indicated the effectiveness of surgical resection for locally recurrent rectal cancer (LRRC). Most cases with posterior invasion patterns require concomitant sacrectomy to secure negative histologic margins, although this is a highly invasive procedure. Here, we present a new minimally invasive laparoscopic surgical technique for LRRC with concomitant sacrectomy. MATERIALS AND SURGICAL TECHNIQUE: A 64-year-old man presented with LRRC on the surface of the sacral bone...
February 2018: Asian Journal of Endoscopic Surgery
Yu-Shuai Wang, Zheng-Fei Yan, Pei Lin, Wei Gao, Tae-Hoo Yi
A Gram-stain negative, aerobic, short rod-shaped, motile by flagella bacterial strain (THG-N2.35T ), was isolated from Pu'er tea. Growth occurred at 10-40 °C (optimum 28 °C), at pH 4-7 (optimum 7) and at 0-5% NaCl (optimum 1%). Based on 16S rRNA gene sequence analysis, the near phylogenetic neighbours of strain THG-N2.35T were identified as Paracoccus hibisci KACC 18632T (99.0%), Paracoccus tibetensis CGMCC 1.8925T (98.7%), Paracoccus beibuensis CGMCC 1.7295T (98.2%), Paracoccus aestuarii KCTC 22049T (98...
February 26, 2018: Antonie Van Leeuwenhoek
Adam Vakrat, Yael Apter-Levy, Ruth Feldman
Maternal depression across the first years of life carries long-term negative consequences for children's well-being; yet, few studies focused on fathers as potential source of resilience in the context of chronic maternal depression. Utilizing an extreme-case design, a community birth cohort of married/cohabitating mothers (N = 1983) with no comorbid risk was repeatedly tested for maternal depression across the first year and again at 6 years, leading to two matched cohorts; 46 mothers with chronic depression and 103 non-depressed controls...
February 21, 2018: Child Psychiatry and Human Development
Benjamin Rolon-Arroyo, David H Arnold, Rosanna P Breaux, Elizabeth A Harvey
Reciprocal relations between children's conduct disorder (CD) symptoms and parenting behaviors were examined across the preschool years. Participants were 199 children (M = 44.26 months, SD = 3.37; 92 girls) and their 199 mothers and 158 fathers. CD symptoms were assessed via structured interviews; parenting was assessed via observational and self-report measures. Fixed effects models were used to assess within-individual changes and traditional cross-lagged models were used to assess between-individual changes; comparisons by sex were also carried out...
February 21, 2018: Child Psychiatry and Human Development
Jason D Edgerton, Matthew T Keough, Lance W Roberts
This study examines whether there are multiple joint trajectories of depression and problem gambling co-development in a sample of emerging adults. Data were from the Manitoba Longitudinal Study of Young Adults (n = 679), which was collected in 4 waves across 5 years (age 18-20 at baseline). Parallel process latent class growth modeling was used to identified 5 joint trajectory classes: low decreasing gambling, low increasing depression (81%); low stable gambling, moderate decreasing depression (9%); low stable gambling, high decreasing depression (5%); low stable gambling, moderate stable depression (3%); moderate stable problem gambling, no depression (2%)...
February 21, 2018: Journal of Gambling Studies
Eleanor M O'Brien, Joanna L Selfe, Ana Sofia Martins, Zoë S Walters, Janet M Shipley
BACKGROUND: MYCN is amplified in small cell lung cancers and several pediatric tumors, including alveolar rhabdomyosarcomas and neuroblastomas. MYCN protein is known to play a key oncogenic role in both alveolar rhabdomyosarcomas and neuroblastomas. MYCN opposite strand (MYCNOS) is a gene located on the antisense strand to MYCN that encodes alternatively spliced transcripts, two of which (MYCNOS-01 and MYCNOS-02) are known to be expressed in neuroblastoma and small cell lung cancer with reciprocal regulation between MYCNOS-02 and MYCN reported for neuroblastomas...
February 21, 2018: BMC Cancer
Yunho Lee, Che Ok Jeon
A Gram-stain-negative, facultatively aerobic, aromatic hydrocarbon-degrading bacterium, designated strain BN5T , was isolated from gasoline-contaminated soil. Cells were motile and slightly curved rods with a single flagellum showing catalase and oxidase activities. Growth was observed at 20-37 °C (optimum, 25-30 °C), pH 3-7 (optimum, pH 5-6) and 0-2 % NaCl (optimum, 0 %). Ubiquinone-8 was the predominant respiratory quinone. The major fatty acids were C16 : 0, cyclo-C19 : 0ω8c and summed feature 8 (comprising C18 : 1ω7c and/or C18 : 1ω6c)...
February 20, 2018: International Journal of Systematic and Evolutionary Microbiology
Johannes Schellenberg, Hans-Jürgen Busse, Martin Hardt, Patrick Schubert, Thomas Wilke, Peter Kämpfer, Stefanie P Glaeser
A bright-orange-pigmented, Gram-stain-negative, motile, and rod-shaped bacterium, strain MAA42T , was isolated from a marine sponge of the genus Haliclona, which is in long-time culture in a marine aquarium system at the Justus Liebig University Giessen, Germany. The strain grew at 4-34 °C (optimum 28 °C), in the presence of 0.5-9.5 % (w/v) NaCl (optimum 3.5 %) and at pH 4.5-10.0 (optimum pH 7.5). Strain MAA42T shared the highest 16S rRNA gene sequence similarity (98.1 %) with the type strain of Litorimonas taeanensis...
February 1, 2018: International Journal of Systematic and Evolutionary Microbiology
M Geletu, R Mohan, R Arulanandam, A Berger-Becvar, I R Nabi, P T Gunning, L Raptis
Caveolin-1 (Cav1) is an integral plasma membrane protein and a complex regulator of signal transduction. The Signal Transducer and Activator of Transcription-3 (Stat3) is activated by a number of receptor and non-receptor tyrosine kinases and is positively implicated in cancer. Despite extensive efforts, the relationship between Cav1 and Stat3 has been a matter of controversy. We previously demonstrated that engagement of E- or N-cadherin or cadherin-11 cell to cell adhesion molecules, as occurs with confluence of cultured cells, triggers a dramatic increase in the levels of tyr705 phosphorylated ie activated Stat3, by a mechanism requiring the cRac1 small GTPase...
February 16, 2018: Biochimica et Biophysica Acta
Daric J Wible, Shawn B Bratton
Reactive oxygen species (ROS) are important signaling molecules that mediate oxidative stress and cellular damage when improperly regulated. ROS and oxidative stress can activate autophagy, which generally serves as a cytoprotective negative feedback mechanism to selectively eliminate sources of ROS, including mitochondria and peroxisomes. In this review we describe the mechanisms by which ROS directly and indirectly activate autophagy, and conversely, how selective autophagy suppresses the formation of ROS...
February 2018: Current Opinion in Toxicology
Natalie C Finch, Harriet M Syme, Jonathan Elliott
Objectives The aim of this study was to describe the variability in renal function markers in non-azotaemic and azotaemic cats, and also the rate of change in the markers. Methods Plasma creatinine concentration and its reciprocal, glomerular filtration rate (GFR) and urine specific gravity (USG) were studied as markers of renal function in client-owned cats. GFR was determined using a corrected slope-intercept iohexol clearance method. Renal function testing was performed at baseline and a second time point...
February 1, 2018: Journal of Feline Medicine and Surgery
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