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https://www.readbyqxmd.com/read/28442999/roles-of-multiple-globus-pallidus-territories-of-monkeys-and-humans-in-motivation-cognition-and-action-an-anatomical-physiological-and-pathophysiological-review
#1
REVIEW
Yosuke Saga, Eiji Hoshi, Léon Tremblay
The globus pallidus (GP) communicates with widespread cortical areas that support various functions, including motivation, cognition and action. Anatomical tract-tracing studies revealed that the anteroventral GP communicates with the medial prefrontal and orbitofrontal cortices, which are involved in motivational control; the anterodorsal GP communicates with the lateral prefrontal cortex, which is involved in cognitive control; and the posterior GP communicates with the frontal motor cortex, which is involved in action control...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28433332/cardiovascular-outcomes-in-patients-with-peripheral-arterial-disease-as-an-initial-or-subsequent-manifestation-of%C3%A2-atherosclerotic-disease-results-from-a-swedish-nationwide-study
#2
Birgitta Sigvant, Pål Hasvold, Björn Kragsterman, Mårten Falkenberg, Saga Johansson, Marcus Thuresson, Joakim Nordanstig
OBJECTIVE: Long-term progression of peripheral arterial disease (PAD) as initial manifestation of atherosclerotic arterial disease is not well described. Cardiovascular (CV) risk was examined in different PAD populations diagnosed in a hospital setting in Sweden. METHODS: Data for this retrospective cohort study were retrieved by linking data on morbidity, medication use, and mortality from Swedish national registries. Primary CV outcome was a composite of myocardial infarction, ischemic stroke (IS), and CV death...
April 19, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28424805/cruising-through-the-journey-without-getting-drowned-the-saga-of-a-phd-student-in-the-netherlands
#3
Louise van Galen, Joyce Wachelder
Young medical trainees all over the world are encouraged to investigate unknown areas of medicine that need clarification. This often leads them to undertake a PhD (Doctor of Philosophy). Being curious, critical, and creative are necessary competences which enable us to engender scientific research within acute (internal) medicine. Worldwide, huge numbers of professionals are pursuing a PhD, with the aim of receiving a 'Doctor'-title. These PhD trajectories vary distinctly between countries. Since the distances in the scientific world are getting smaller and it is becoming more easy to work with each other across borders, it might be interesting to know what it requires to become an academic 'doctor' overseas...
2017: Acute Medicine
https://www.readbyqxmd.com/read/28418815/educational-activity-for-the-radiation-emergency-system-in-the-northern-part-of-japan-meeting-report-on-the-3rd-educational-symposium-on-radiation-and-health-esrah-by-young-scientists-in-2016
#4
Yusuke Matsuya, Takakiyo Tsujiguchi, Masaru Yamaguchi, Takaaki Kimura, Ryosuke Mori, Ryota Yamada, Ryo Saga, Yohei Fujishima, Hiroyuki Date
In the northern part of Japan, close cooperation is essential in preparing for any possible emergency response to radiation accidents because several facilities, such as the Low-Level Radioactive Waste Disposal Facility, the MOX Fuel Fabrication Plant and the Vitrified Waste Storage Center, exist in Rokkasho Village (Aomori Prefecture). After the accident at Fukushima Daiichi Nuclear Power Plant in 2011, special attention should be given to the relationship between radiation and human health, as well as establishing a system for managing with a radiation emergency...
April 18, 2017: Radiation Research
https://www.readbyqxmd.com/read/28412741/opposite-effects-of-gcn5-and-pcaf-knockdowns-on-the-alternative-mechanism-of-telomere-maintenance
#5
Maya Jeitany, Dalal Bakhos-Douaihy, David C Silvestre, Jose R Pineda, Nicolas Ugolin, Angela Moussa, Laurent R Gauthier, Didier Busso, Marie-Pierre Junier, Hervé Chneiweiss, Sylvie Chevillard, Chantal Desmaze, François D Boussin
Cancer cells can use a telomerase-independent mechanism, known as alternative lengthening of telomeres (ALT), to elongate their telomeres. General control non-derepressible 5 (GCN5) and P300/CBP-associated factor (PCAF) are two homologous acetyltransferases that are mutually exclusive subunits in SAGA-like complexes. Here, we reveal that down regulation of GCN5 and PCAF had differential effects on some phenotypic characteristics of ALT cells. Our results suggest that GCN5 is present at telomeres and opposes telomere recombination, in contrast to PCAF that may indirectly favour them in ALT cells...
February 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28400515/saga-complex-mediates-the-transcriptional-up-regulation-of-antiviral-rna-silencing
#6
Ida Bagus Andika, Atif Jamal, Hideki Kondo, Nobuhiro Suzuki
Pathogen recognition and transcriptional activation of defense-related genes are crucial steps in cellular defense responses. RNA silencing (RNAi) functions as an antiviral defense in eukaryotic organisms. Several RNAi-related genes are known to be transcriptionally up-regulated upon virus infection in some host organisms, but little is known about their induction mechanism. A phytopathogenic ascomycete, Cryphonectria parasitica (chestnut blight fungus), provides a particularly advantageous system to study RNAi activation, because its infection by certain RNA viruses induces the transcription of dicer-like 2 (dcl2) and argonaute-like 2 (agl2), two major RNAi players...
April 11, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28392545/sudden-death-phenomenon-while-bathing-in-japan%C3%A3-mortality-data
#7
Masaru Suzuki, Takuro Shimbo, Toshiharu Ikaga, Shingo Hori
BACKGROUND: Bath-related sudden cardiac arrest frequently occurs in Japan, but the mortality data have not been sufficiently reported.Methods and Results:This prospective cross-sectional observational study was conducted in the Tokyo Metropolis, Saga Prefecture and Yamagata Prefecture between October 2012 and March 2013 (i.e., in winter). We investigated the data for all occurrences in these areas for which the emergency medical system needed to be activated because of an accident or acute illness related to bathing...
April 8, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28386106/mpl-activation-directly-induces-fibrocyte-differentiation-to-cause-myelofibrosis
#8
T Maekawa, Y Osawa, T Izumi, S Nagao, K Takano, Y Okada, N Tachi, M Teramoto, T Kawamura, T Horiuchi, R Saga, S Kato, T Yamamura, J Watanabe, A Kobayashi, S Kobayashi, K Sato, M Hashimoto, S Suzu, F Kimura
Myelofibrosis (MF) may be caused by various pathogenic mechanisms such as elevation in circulating cytokine levels, cellular interactions, and genetic mutations. However, the underlying mechanism of MF still remains unknown. Recent studies have revealed that fibrocytes, the spindle-shaped fibroblast-like hematopoietic cells, and the thrombopoietin (TPO)/myeloproliferative leukemia protein (MPL; TPO receptor) signaling pathway play a certain role in the development of MF. In the present study, we aimed to investigate the relationship between fibrocytes and MPL activation...
April 7, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28381689/meningeal-infiltration-of-malignant-lymphoma-presenting-with-froin-s-syndrome
#9
Tomoyuki Saga, Toshimichi Ishihara, Michiyo Kanagawa
Froin's syndrome is characterized by a combination of marked coagulation, elevated protein levels, and xanthochromia of the cerebrospinal fluid (CSF). It is due to blockage of CSF flow by a spinal cord mass or results from meningeal irritation during meningitis. However, Froin's syndrome has not been reported in hematological malignancies. Herein, we present two cases of lymphomatous leptomeningitis with Froin's syndrome. A 66-year-old man suffered consciousness disturbance during chemotherapy for a relapse of peripheral T-cell lymphoma, not otherwise specified...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28357186/lesch-nyhan-syndrome-the-saga-of-metabolic-abnormalities-and-self-injurious-behavior
#10
Nitesh Tewari, Vijay Prakash Mathur, Divesh Sardana, Kalpana Bansal
Lesch-Nyhan syndrome (LNS) is an X-linked recessive disorder of purine metabolism caused by a mutation in Xq26.2-q26.3 (OMIM 308000.0004). The presence of the diagnostic triad, i.e. signs of self-injurious behavior (SIB) and results of pedigree analysis and novel molecular biology & genetic testing, confirms the diagnosis of LNS. With a level of hypoxanthine guanine phosphoribosyl-transferase 1 (HPRT1) enzyme activity < 2%, patients develop neurological, neurocognitive, and neuromotor symptoms along with SIB...
February 2017: Intractable & Rare Diseases Research
https://www.readbyqxmd.com/read/28352469/successful-treatment-of-pulmonary-nocardiosis-with-fluoroquinolone-in-bronchial-asthma-and-bronchiectasis
#11
Hironori Sadamatsu, Koichiro Takahashi, Hiroki Tashiro, Kazutoshi Komiya, Tomomi Nakamura, Naoko Sueoka-Aragane
A 72-year-old Japanese woman was admitted at Saga University Hospital for fever, malaise, and productive cough. Six years ago, she had been diagnosed with bronchial asthma and was treated with inhaled corticosteroids. Chest radiograph and computed tomography on admission showed infiltrates in the right middle lobe, a mass lesion in the left lower lobe, and bronchiectasis in both lower lobes. Sputum examination showed Gram-positive rods with phagocytosis by neutrophils. These bacilli were identified as Nocardia otitidiscaviarum by 16S ribosomal RNA sequencing...
May 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28346434/optimization-of-adeno-associated-virus-vector-mediated-gene-transfer-to-the-respiratory-tract
#12
F Kurosaki, R Uchibori, N Mato, Y Sehara, Y Saga, M Urabe, H Mizukami, Y Sugiyama, A Kume
An efficient adeno-associated virus (AAV) vector was constructed for the treatment of respiratory diseases. AAV serotypes, promoters, and routes of administration potentially influencing the efficiency of gene transfer to airway cells were examined in the present study. Among the nine AAV serotypes (AAV1-9) screened in vitro and four serotypes (AAV1, 2, 6, 9) evaluated in vivo, AAV6 showed the strongest transgene expression. As for promoters, the cytomegalovirus (CMV) early enhancer/chicken β-actin (CAG) promoter resulted in more robust transduction than the CMV promoter...
March 27, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28341395/gonocytes-to-spermatogonia-transition-initiates-prior-to-birth-in-murine-testes-and-it-requires-fgf-signaling
#13
Han Pin Pui, Yumiko Saga
Spermatogenesis is a continuous and highly coordinated process of spermatozoa production. In mice, this process is believed to initiate shortly after birth with the emergence of nascent spermatogonia in the testes. However, because the nascent spermatogonia originated from the gonocytes are morphologically indistinguishable from their predecessors and there is no clear definition for the gonocytes-to-spermatogonia transition (GST), it remains unclear when and how spermatogenesis is initiated in the mouse testes...
March 21, 2017: Mechanisms of Development
https://www.readbyqxmd.com/read/28334815/gcn5-mediated-rph1-acetylation-regulates-its-autophagic-degradation-under-dna-damage-stress
#14
Feng Li, Liang-De Zheng, Xin Chen, Xiaolu Zhao, Scott D Briggs, Hai-Ning Du
Histone modifiers regulate proper cellular activities in response to various environmental stress by modulating gene expression. In budding yeast, Rph1 transcriptionally represses many DNA damage or autophagy-related gene expression. However, little is known how Rph1 is regulated during these stress conditions. Here, we report that Rph1 is degraded upon DNA damage stress conditions. Notably, this degradation occurs via the autophagy pathway rather than through 26S proteasome proteolysis. Deletion of ATG genes or inhibition of vacuole protease activity compromises Rph1 turnover...
February 21, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28328981/dysbiosis-and-compositional-alterations-with-aging-in-the-gut-microbiota-of-patients-with-heart-failure
#15
Takehiro Kamo, Hiroshi Akazawa, Wataru Suda, Akiko Saga-Kamo, Yu Shimizu, Hiroki Yagi, Qing Liu, Seitaro Nomura, Atsuhiko T Naito, Norifumi Takeda, Mutsuo Harada, Haruhiro Toko, Hidetoshi Kumagai, Yuichi Ikeda, Eiki Takimoto, Jun-Ichi Suzuki, Kenya Honda, Hidetoshi Morita, Masahira Hattori, Issei Komuro
Emerging evidence has suggested a potential impact of gut microbiota on the pathophysiology of heart failure (HF). However, it is still unknown whether HF is associated with dysbiosis in gut microbiota. We investigated the composition of gut microbiota in patients with HF to elucidate whether gut microbial dysbiosis is associated with HF. We performed 16S ribosomal RNA gene sequencing of fecal samples obtained from 12 HF patients and 12 age-matched healthy control (HC) subjects, and analyzed the differences in gut microbiota...
2017: PloS One
https://www.readbyqxmd.com/read/28322494/finding-the-best-ablation-strategy-for-renal-denervation-a-continuing-saga
#16
Kyriakos Dimitriadis, Costas Tsioufis, Dimitrios Tousoulis
No abstract text is available yet for this article.
March 21, 2017: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/28318979/a-phytophthora-effector-manipulates-host-histone-acetylation-and-reprograms-defense-gene-expression-to-promote-infection
#17
Liang Kong, Xufang Qiu, Jiangang Kang, Yang Wang, Han Chen, Jie Huang, Min Qiu, Yao Zhao, Guanghui Kong, Zhenchuan Ma, Yan Wang, Wenwu Ye, Suomeng Dong, Wenbo Ma, Yuanchao Wang
Immune response during pathogen infection requires extensive transcription reprogramming. A fundamental mechanism of transcriptional regulation is histone acetylation. However, how pathogens interfere with this process to promote disease remains largely unknown. Here we demonstrate that the cytoplasmic effector PsAvh23 produced by the soybean pathogen Phytophthora sojae acts as a modulator of histone acetyltransferase (HAT) in plants. PsAvh23 binds to the ADA2 subunit of the HAT complex SAGA and disrupts its assembly by interfering with the association of ADA2 with the catalytic subunit GCN5...
April 3, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28317283/radiological-and-microsurgical-anatomy-for-variation-of-the-mandible-comparative-study-of-human-and-macaca-fascicularis
#18
Joe Iwanaga, Koichi Watanabe, Tsuyoshi Saga, Yoko Tabira, Eishi Hirasaki, Christian Fisahn, R Shane Tubbs, Jingo Kusukawa, Koh-Ichi Yamaki
Recent studies using cone-beam computer tomography (CBCT) have added to our understanding of anatomical variation in the mandible of humans. However, the distribution of nerves cannot be revealed by CBCT. There have been investigations of the distribution of nerves relating to the mandible, but some proposed causes of these variations remain controversial. In this study, we observed a total of 10 sides from five mandibles of Macaca fascicularis of unknown age and sex using CBCT and dissection under stereomicroscopy...
March 20, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28303956/inhibitory-role-of-acyl-homoserine-lactones-in-hemolytic-activity-and-viability-of-streptococcus-pyogenes-m6-s165
#19
Sunil D Saroj, Linda Holmer, Júlia M Berengueras, Ann-Beth Jonsson
Streptococcus pyogenes an adapted human pathogen asymptomatically colonizes the nasopharynx, among other polymicrobial communities. However, information on the events leading to the colonization and expression of virulence markers subject to interspecies and host-bacteria interactions are limited. The interference of acyl homoserine lactones (AHLs) with the hemolytic activity and viability of S. pyogenes M6 S165 was examined. AHLs, with fatty acid side chains ≥12 carbon atoms, inhibited hemolytic activity by downregulating the expression of the sag operon involved in the production of streptolysin S...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28303492/contributions-of-the-japanese-gynecologic-oncology-group-jgog-in-improving-the-quality-of-life-in-women-with-gynecological-malignancies
#20
REVIEW
Masayuki Futagami, Yoshihito Yokoyama, Muneaki Shimada, Shinya Sato, Etsuko Miyagi, Akiko Tozawa-Ono, Nao Suzuki, Masaki Fujimura, Yoichi Aoki, Satoru Sagae, Toru Sugiyama
The Japanese Gynecologic Oncology Group (JGOG) is leading Japan in the treatment of gynecological malignancies. The JGOG consists of three treatment committees focusing on uterine cervical cancer, endometrial cancer, and ovarian cancer. Each committee makes efforts to improve treatment and diagnosis. In addition, the Supportive and Palliative Care Committee was established in 2015. Novel studies of supportive care and palliative care have been initiated by this committee. Furthermore, surveys about not only treatment results such as overall survival rates but also quality of life (QOL) and cost-effectiveness assessments are performed by the ovarian cancer committee...
April 2017: Current Oncology Reports
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