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https://www.readbyqxmd.com/read/28293542/whole-genome-sequence-and-phylogenetic-analysis-show-helicobacter-pylori-strains-from-latin-america-have-followed-a-unique-evolution-pathway
#1
Zilia Y Muñoz-Ramírez, Alfonso Mendez-Tenorio, Ikuko Kato, Maria M Bravo, Cosmeri Rizzato, Kaisa Thorell, Roberto Torres, Francisco Aviles-Jimenez, Margarita Camorlinga, Federico Canzian, Javier Torres
Helicobacter pylori (HP) genetics may determine its clinical outcomes. Despite high prevalence of HP infection in Latin America (LA), there have been no phylogenetic studies in the region. We aimed to understand the structure of HP populations in LA mestizo individuals, where gastric cancer incidence remains high. The genome of 107 HP strains from Mexico, Nicaragua and Colombia were analyzed with 59 publicly available worldwide genomes. To study bacterial relationship on whole genome level we propose a virtual hybridization technique using thousands of high-entropy 13 bp DNA probes to generate fingerprints...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28287464/neuropeptide-vgf-promotes-maturation-of-hippocampal-dendrites-that-is-reduced-by-single-nucleotide-polymorphisms
#2
Joseph Behnke, Aneesha Cheedalla, Vatsal Bhatt, Maysa Bhat, Shavonne Teng, Alicia Palmieri, Charles Christian Windon, Smita Thakker-Varia, Janet Alder
The neuropeptide VGF (non-acronymic) is induced by brain-derived neurotrophic factor and promotes hippocampal neurogenesis, as well as synaptic activity. However, morphological changes induced by VGF have not been elucidated. Developing hippocampal neurons were exposed to VGF through bath application or virus-mediated expression in vitro. VGF-derived peptide, TLQP-62, enhanced dendritic branching, and outgrowth. Furthermore, VGF increased dendritic spine density and the proportion of immature spines. Spine formation was associated with increased synaptic protein expression and co-localization of pre- and postsynaptic markers...
March 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28219951/generation-of-thalamic-neurons-from-mouse-embryonic-stem-cells
#3
Atsushi Shiraishi, Keiko Muguruma, Yoshiki Sasai
Thalamus is a diencephalic structure that plays crucial roles in relaying and modulating sensory and motor information to the neocortex. The thalamus develops in the dorsal part of the neural tube at the level of the caudal forebrain. However, the molecular mechanisms that are essential for thalamic differentiation are still unknown. Here we have succeeded in the generation of thalamic neurons from mouse ES cells (mESCs) by modifying the default method that induces the most-anterior neural type in self-organizing culture...
February 20, 2017: Development
https://www.readbyqxmd.com/read/28213131/nerp-2-regulates-gastric-acid-secretion-and-gastric-emptying-via-the-orexin-pathway
#4
Cherl Namkoong, Koji Toshinai, T M Zaved Waise, Hideyuki Sakoda, Kazuki Sasaki, Yoichi Ueta, Min-Seon Kim, Naoto Minamino, Masamitsu Nakazato
Neuroendocrine regulatory peptide (NERP)-2 is derived from a distinct region of VGF, a neurosecretory protein originally identified as a product of a nerve growth factor-responsive gene in rat PC12 cells. Colocalization of NERP-2 with orexin-A in the lateral hypothalamus increases orexin-A-induced feeding and energy expenditure in both rats and mice. Orexigenic and anorectic peptides in the hypothalamus modulate gastric function. In this study, we investigated the effect of NERP-2 on gastric function in rats...
April 1, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28162522/-291-complement-mediated-effects-of-the-vgf-peptide-tlqp-21
#5
J Cook, K Kitto, M Riedl, C Fairbanks, L Vulchanova
No abstract text is available yet for this article.
April 2016: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28123945/the-neuropeptide-tlqp-21-opposes-obesity-via%C3%A2-c3ar1-mediated-enhancement-of-adrenergic-induced-lipolysis
#6
Cheryl Cero, Maria Razzoli, Ruijun Han, Bhavani Shankar Sahu, Jessica Patricelli, ZengKui Guo, Nathan A Zaidman, John M Miles, Scott M O'Grady, Alessandro Bartolomucci
OBJECTIVES: Obesity is characterized by excessive fat mass and is associated with serious diseases such as type 2 diabetes. Targeting excess fat mass by sustained lipolysis has been a major challenge for anti-obesity therapies due to unwanted side effects. TLQP-21, a neuropeptide encoded by the pro-peptide VGF (non-acronymic), that binds the complement 3a receptor 1 (C3aR1) on the adipocyte membrane, is emerging as a novel modulator of adipocyte functions and a potential target for obesity-associated diseases...
January 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28024880/embryonic-ablation-of-neuronal-vgf-increases-energy-expenditure-and-reduces-body-weight
#7
Cheng Jiang, Wei-Jye Lin, Masato Sadahiro, Andrew C Shin, Christoph Buettner, Stephen R Salton
Germline ablation of VGF, a secreted neuronal, neuroendocrine, and endocrine peptide precursor, results in lean, hypermetabolic, and infertile adult mice that are resistant to diet-, lesion-, and genetically-induced obesity and diabetes (Hahm et al., 1999, 2002). To assess whether this phenotype is predominantly driven by reduced VGF expression in developing and/or adult neurons, or in peripheral endocrine and neuroendocrine tissues, we generated and analyzed conditional VGF knockout mice, obtained by mating loxP-flanked (floxed) Vgf mice with either pan-neuronal Synapsin-Cre- or forebrain alpha-CaMKII-Cre-recombinase-expressing transgenic mice...
December 20, 2016: Neuropeptides
https://www.readbyqxmd.com/read/27893846/cerebellum-transcriptome-of-mice-bred-for-high-voluntary-activity-offers-insights-into-locomotor-control-and-reward-dependent-behaviors
#8
Kelsey Caetano-Anollés, Justin S Rhodes, Theodore Garland, Sam D Perez, Alvaro G Hernandez, Bruce R Southey, Sandra L Rodriguez-Zas
The role of the cerebellum in motivation and addictive behaviors is less understood than that in control and coordination of movements. High running can be a self-rewarding behavior exhibiting addictive properties. Changes in the cerebellum transcriptional networks of mice from a line selectively bred for High voluntary running (H) were profiled relative to an unselected Control (C) line. The environmental modulation of these changes was assessed both in activity environments corresponding to 7 days of Free (F) access to running wheel and to Blocked (B) access on day 7...
2016: PloS One
https://www.readbyqxmd.com/read/27877109/npas3-regulates-transcription-and-expression-of-vgf-implications-for-neurogenesis-and-psychiatric-disorders
#9
Dongxue Yang, Wenbo Zhang, Arshad Padhiar, Yao Yue, Yonghui Shi, Tiezheng Zheng, Kaspar Davis, Yu Zhang, Min Huang, Yuyuan Li, Li Sha
Neuronal PAS domain protein 3 (NPAS3) and VGF (VGF Nerve Growth Factor (NGF) Inducible) are important for neurogenesis and psychiatric disorders. Previously, we have demonstrated that NPAS3 regulates VGF at the transcriptional level. In this study, VGF (non-acronymic) was found regulated by NPAS3 in neuronal stem cells. However, the underlying mechanism of this regulation remains unclear. The aim of this study was to explore the correlation of NPAS3 and VGF, and their roles in neural cell proliferation, in the context of psychiatric illnesses...
2016: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/27798061/impact-of-glucose-control-on-early-vein-graft-failure-after-coronary-artery-bypass-grafting-one-month-angiographic-results
#10
Shinji Ogawa, Yasuhide Okawa, Koshi Sawada, Yusuke Motoji, Yoshihiro Goto, Arishige Kimura, Mototsugu Tamaki, Yutaka Koyama, Masanori Yamamoto, Toshiaki Otsuka, Takayoshi Kato, Syunsuke Fukaya, Tomohiro Tsunekawa, Hideki Kitamura, Shinji Tomita, Takahiko Suzuki
OBJECTIVES: To identify factors that determine early saphenous vein graft failure (VGF) within 1 month after coronary artery bypass grafting (CABG). METHODS: Seven hundred forty-nine consecutive patients underwent primary isolated CABG with saphenous vein grafts at three Japanese centres from 1 January 2005 to 31 December 2014. According to angiographic findings within 1 month of CABG surgery, 63 patients (8.4%) developed early VGF. We examined the relationships between variables and early VGF by using multivariable logistic regression analysis...
October 20, 2016: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/27780882/sickness-absence-among-peer-supported-drivers-after-occupational-trauma
#11
A Clarner, W Uter, L Ruhmann, N Wrenger, A Martin, H Drexler
BACKGROUND: Psychological first aid is a common approach for providing support after potentially traumatic events (PTEs). In Germany, a peer support model is recommended by the German Statutory Accident Insurance (DGUV) to reduce sickness absence after occupational accidents, especially in public transportation. However, data on the effectiveness of peer support are very sparse. AIMS: To analyse whether peer support has an impact on sickness absence after work-related traumatic events in public transportation...
October 25, 2016: Occupational Medicine
https://www.readbyqxmd.com/read/27737014/vgf-protein-and-its-c-terminal-derived-peptides-in-amyotrophic-lateral-sclerosis-human-and-animal-model-studies
#12
Carla Brancia, Barbara Noli, Marina Boido, Andrea Boi, Roberta Puddu, Giuseppe Borghero, Francesco Marrosu, Paolo Bongioanni, Sandro Orrù, Barbara Manconi, Filomena D'Amato, Irene Messana, Federica Vincenzoni, Alessandro Vercelli, Gian-Luca Ferri, Cristina Cocco
VGF mRNA is widely expressed in areas of the nervous system known to degenerate in Amyotrophic Lateral Sclerosis (ALS), including cerebral cortex, brainstem and spinal cord. Despite certain VGF alterations are reported in animal models, little information is available with respect to the ALS patients. We addressed VGF peptide changes in fibroblast cell cultures and in plasma obtained from ALS patients, in parallel with spinal cord and plasma samples from the G93A-SOD1 mouse model. Antisera specific for the C-terminal end of the human and mouse VGF proteins, respectively, were used in immunohistochemistry and enzyme-linked immunosorbent assay (ELISA), while gel chromatography and HPLC/ESI-MS/MS were used to identify the VGF peptides present...
2016: PloS One
https://www.readbyqxmd.com/read/27732860/voluntary-running-triggers-vgf-mediated-oligodendrogenesis-to-prolong-the-lifespan-of-snf2h-null-ataxic-mice
#13
Matías Alvarez-Saavedra, Yves De Repentigny, Doo Yang, Ryan W O'Meara, Keqin Yan, Lukas E Hashem, Lemuel Racacho, Ilya Ioshikhes, Dennis E Bulman, Robin J Parks, Rashmi Kothary, David J Picketts
Exercise has been argued to enhance cognitive function and slow progressive neurodegenerative disease. Although exercise promotes neurogenesis, oligodendrogenesis and adaptive myelination are also significant contributors to brain repair and brain health. Nonetheless, the molecular details underlying these effects remain poorly understood. Conditional ablation of the Snf2h gene impairs cerebellar development producing mice with poor motor function, progressive ataxia, and death between postnatal days 25-45...
October 11, 2016: Cell Reports
https://www.readbyqxmd.com/read/27517619/mgmt-and-calca-promoter-methylation-are-associated-with-poor-prognosis-in-testicular-germ-cell-tumor-patients
#14
Camila Maria da Silva Martinelli, André van Helvoort Lengert, Flavio Mavignier Cárcano, Eduardo Caetano Albino Silva, Mariana Brait, Luiz Fernando Lopes, Daniel Onofre Vidal
Testicular germ cell tumors (TGCT) represent the second main cause of cancer-related death in young men. Despite high cure rates, refractory disease results in poor prognosis. Epigenetic reprogramming occurs during the development of seminomas and non-seminomas. Understanding the molecular and genetic basis of these tumors would represent an important advance in the search for new TGCT molecular markers. Hence the frequency of methylation of a gene panel (VGF, MGMT, ADAMTS1, CALCA, HOXA9, CDKN2B, CDO1 and NANOG) was evaluated in 72 primary TGCT by quantitative methylation specific PCR...
August 10, 2016: Oncotarget
https://www.readbyqxmd.com/read/27513633/spinal-cord-stimulation-alters-protein-levels-in-the-cerebrospinal-fluid-of-neuropathic-pain-patients-a-proteomic-mass-spectrometric-analysis
#15
Anne-Li Lind, Payam Emami Khoonsari, Marcus Sjödin, Lenka Katila, Magnus Wetterhall, Torsten Gordh, Kim Kultima
OBJECTIVES: Electrical neuromodulation by spinal cord stimulation (SCS) is a well-established method for treatment of neuropathic pain. However, the mechanism behind the pain relieving effect in patients remains largely unknown. In this study, we target the human cerebrospinal fluid (CSF) proteome, a little investigated aspect of SCS mechanism of action. METHODS: Two different proteomic mass spectrometry protocols were used to analyze the CSF of 14 SCS responsive neuropathic pain patients...
August 2016: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/27466366/characterization-of-gonadotrope-secretoproteome-identifies-neurosecretory-protein-vgf-derived-peptide-suppression-of-follicle-stimulating-hormone-gene-expression
#16
Soon Gang Choi, Qian Wang, Jingjing Jia, Maria Chikina, Hanna Pincas, Georgia Dolios, Kazuki Sasaki, Rong Wang, Naoto Minamino, Stephen R J Salton, Stuart C Sealfon
Reproductive function is controlled by the pulsatile release of hypothalamic gonadotropin-releasing hormone (GnRH), which regulates the expression of the gonadotropins luteinizing hormone and FSH in pituitary gonadotropes. Paradoxically, Fshb gene expression is maximally induced at lower frequency GnRH pulses, which provide a very low average concentration of GnRH stimulation. We studied the role of secreted factors in modulating gonadotropin gene expression. Inhibition of secretion specifically disrupted gonadotropin subunit gene regulation but left early gene induction intact...
September 30, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27088090/identification-and-evolutionary-analysis-of-potential-candidate-genes-in-a-human-eating-disorder
#17
Ubadah Sabbagh, Saman Mullegama, Gerald J Wyckoff
The purpose of this study was to find genes linked with eating disorders and associated with both metabolic and neural systems. Our operating hypothesis was that there are genetic factors underlying some eating disorders resting in both those pathways. Specifically, we are interested in disorders that may rest in both sleep and metabolic function, generally called Night Eating Syndrome (NES). A meta-analysis of the Gene Expression Omnibus targeting the mammalian nervous system, sleep, and obesity studies was performed, yielding numerous genes of interest...
2016: BioMed Research International
https://www.readbyqxmd.com/read/26797058/patient-satisfaction-of-surgical-treatment-of-clitoral-phimosis-and-labial-adhesions-caused-by-lichen-sclerosus
#18
Anne N Flynn, Michelle King, Mollie Rieff, Jill Krapf, Andrew T Goldstein
INTRODUCTION: Lichen sclerosus (LS) is a chronic inflammatory dermatosis, usually affecting the anogenital skin in women. This chronic inflammation can cause scarring of genitalia including narrowing of the introitus and phimosis of the clitoris. These architectural changes can lead to recurrent tearing during intercourse (vulvar granuloma fissuratum) and decreased clitoral sensation. Surgical correction of vulvar granuloma fissuratum (VGF) and clitoral phimosis can be performed, but there is little data on the patient satisfaction and complications following these surgical procedures...
December 2015: Sexual Medicine
https://www.readbyqxmd.com/read/26791873/screening-for-potential-serum-biomarkers-in-rat-mesangial-proliferative-nephritis
#19
Yang Lu, Xiaoniao Chen, Zhong Yin, Shuying Zhu, Di Wu, Xiangmei Chen
Mesangial proliferative nephritis (MesPGN) is a common kidney disease worldwide. The main feature of the disease is mesangial cell proliferation-induced injury to kidney function. In this study, we explored serum biomarkers for kidney function injury in anti-Thy1 nephritis. We found that mesangial proliferation were increased on days 5 and 7, and recovered by day 14 in anti-Thy1 nephritis. 24-h urine protein, the ratio of urine protein to urine creatine, serum creatine, and blood urea nitrogen, were increased at days 5 and 7 in the model...
March 2016: Proteomics
https://www.readbyqxmd.com/read/26730934/role-of-hypothalamic-vgf-in-energy-balance-and-metabolic-adaption-to-environmental-enrichment-in-mice
#20
Grant D Foglesong, Wei Huang, Xianglan Liu, Andrew M Slater, Jason Siu, Vedat Yildiz, Stephen R J Salton, Lei Cao
Environmental enrichment (EE), a housing condition providing complex physical, social, and cognitive stimulation, leads to improved metabolic health and resistance to diet-induced obesity and cancer. One underlying mechanism is the activation of the hypothalamic-sympathoneural-adipocyte axis with hypothalamic brain-derived neurotrophic factor (BDNF) as the key mediator. VGF, a peptide precursor particularly abundant in the hypothalamus, was up-regulated by EE. Overexpressing BDNF or acute injection of BDNF protein to the hypothalamus up-regulated VGF, whereas suppressing BDNF signaling down-regulated VGF expression...
March 2016: Endocrinology
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