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Aquaporin 9

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https://www.readbyqxmd.com/read/29119327/pattern-of-protein-expression-in-the-epididymis-of-oligoryzomys-nigripes-cricetidae-sigmodontinae
#1
Tatiana Prata Menezes, Eric Hill, Arlindo de Alencar Moura, Marina D P Lobo, Ana Cristina O Monteiro-Moreira, Sylvie Breton, Mariana Machado-Neves
In the epididymis, epithelial cells work in a concerted manner to create a luminal environment for sperm maturation, transport, and storage. However, the cell functions may be affected by anthropogenic factors, causing negative impacts on male fertility. In our study, we describe the pattern of protein expression in the epithelium and luminal fluid from epididymis of Oligoryzomys nigripes, a South American sigmodontine rodent whose reproductive biology has been little studied. Nine animals were captured from a preserved area of Atlantic Forest, where the exposure to anthropogenic influences is minimal...
November 8, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/29111656/charge-gated-ion-transport-through-polyelectrolyte-intercalated-amine-reduced-graphene-oxide-membranes
#2
Xiaoxiao Song, Rahul S Zambare, Saren Qi, Bhuvana Nil Sowrirajalu, Antony Prince James Selvaraj, Chuyang Y Tang, Congjie Gao
Charge-gated channels are nature's solutions for transport of water molecules and ions through aquaporins in biological membranes while excluding undesired substances. The same mechanism has good potentials to be adopted in pressure or electrically driven membrane separation processes. Herein, we report highly charged nanochannels created in polyelectrolyte (PE) intercalated amine reduced graphene oxide membrane (PE@ArGO membrane). The PE@ArGO membrane, with a rejection layer of ∼160 nm in thickness, features a laminate structure and a smooth top surface of a low roughness (typically ∼17...
November 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29107247/agroinfiltration-based-expression-of-hairpin-rna-in-soybean-plants-for-rna-interference-against-tetranychus-urticae
#3
Vimal Kumar Dubey, Ung Gyu Lee, Deok Ho Kwon, Si Hyeock Lee
The coatomer subunit alpha (COPA) and aquaporin 9 (AQ9) genes from the two-spotted spider mite, Tetranychus urticae, were previously determined to exhibit RNA interference (RNAi)-based lethality when their double-stranded RNAs were systemically delivered via multi-unit chambers (Kwon et al., 2016 [8]). In current study, the hairpin RNAs of the COPA and AQ9 were transiently expressed in soybean plants by agroinfiltration. When T. urticae was fed with the soybean plants agroinfiltrated with the COPA and AQ9 hairpin RNA cassettes, the cumulative mortality increased significantly at 6days post-infestation...
October 2017: Pesticide Biochemistry and Physiology
https://www.readbyqxmd.com/read/29106595/prognostic-implication-of-aquaporin-1-overexpression-in-resected-lung-adenocarcinoma
#4
Guido Bellezza, Jacopo Vannucci, Fortunato Bianconi, Giulio Metro, Rachele Del Sordo, Marco Andolfi, Ivana Ferri, Paola Siccu, Vienna Ludovini, Francesco Puma, Angelo Sidoni, Lucio Cagini
OBJECTIVES: Aquaporins (AQPs) are a group of transmembrane water-selective channel proteins thought to play a role in the regulation of water permeability for plasma membranes. Indeed, high AQP levels have been suggested to promote the progression, invasion and metastasis of tumours. Specifically, AQP1 and AQP5 overexpression in lung adenocarcinoma (AC) have been suggested to be involved in molecular mechanisms in lung cancer. The aim of this retrospective cohort single-centre study was to assess both the levels of expression and therein the prognostic significance, regarding outcome of AQP1 and AQP5 in resected AC patients...
July 4, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29093286/protection-of-tong-qiao-huo-xue-decoction-against-cerebral-ischemic-injury-through-reduction-blood-brain-barrier-permeability
#5
Lili Li, Ning Wang, Qizhong Jin, Qian Wu, Yafang Liu, Yan Wang
Tong-Qiao-Huo-Xue Decoction (TQHXD) is a classical prescription in traditional Chinese medicine treating blood stagnation in the head and facial channels, especially cerebral ischemia. We investigate the effect of TQHXD on the expressions of related proteins of the blood-brain barrier (BBB) and analysis of constituents in the cerebrospinal fluid (CSF) on cerebral ischemic model rats. Here, we demonstrate that TQHXD protected the hippocampus neurons, reduced the opening of tight junction (TJ) and decreased the permeability of BBB by up-regulating ZO-1, occludin, claudin-5 expressions, down-regulating aquaporin-4 (AQP-4) and matrix metalloproteinase-9 (MMP-9) expressions...
2017: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29080917/immunohistochemical-analysis-on-aquaporin-1-and-aquaporin-3-in-skin-wounds-from-the-aspects-of-wound-age-determination
#6
Yuko Ishida, Yumi Kuninaka, Fukumi Furukawa, Akihiko Kimura, Mizuho Nosaka, Mie Fukami, Hiroki Yamamoto, Takashi Kato, Emi Shimada, Satoshi Hata, Tatsunori Takayasu, Wolfgang Eisenmenger, Toshikazu Kondo
Immunohistochemical investigation of aquaporin (AQP)1 and AQP3 was performed in human skin wounds obtained from forensic autopsy cases. A total of 55 human skin wounds of different postinfliction intervals were collected as follows: group I, 0-3 days (n = 16); II, 4-7 days (n = 11); III, 9-14 days (n = 16); and IV, 17-21 days (n = 12). In uninjured skin samples, AQP1 and AQP3 could be slightly detected in dermal vessels and keratinocytes, respectively. The percentage of AQP1(+) vessels and the number of AQP3(+) keratinocytes were apparently elevated in accordance with wound ages...
October 28, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29073350/understanding-the-antibody-repertoire-in-neuropsychiatric-systemic-lupus-erythematosus-and-neuromyelitis-optica-spectrum-disorders-do-they-share-common-targets
#7
Simone Mader, Venkatesh Jeganathan, Yoshiyuki Arinuma, Yuichiro Fujieda, Irena Dujmovic, Jelena Drulovic, Yuka Shimizu, Yuko Sakuma, Joel N H Stern, Cynthia Aranow, Meggan Mackay, Shinsuke Yasuda, Tatsuya Atsumi, Shunsei Hirohata, Betty Diamond
OBJECTIVE: DWEYS-IgG cross-reactive with DNA and the N-methyl-D-aspartate receptor subunits GluN2A/GluN2B has been associated with neuropsychiatric systemic lupus erythematosus (NPSLE). DWEYS-IgG has not been investigated in demyelinating NPSLE (dNPSLE) or in another demyelinating disorder, Neuromyelitis Optica Spectrum Disorder (NMOSD), which is also a disease of young women and associated with aquaporin-4 (AQP4) or myelin oligodendrocyte glycoprotein (MOG) antibodies. We investigated the frequency of these brain-reactive antibodies in NPSLE, dNPSLE and NMOSD...
October 26, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29063242/clinical-spectrum-and-igg-subclass-analysis-of-anti-myelin-oligodendrocyte-glycoprotein-antibody-associated-syndromes-a-multicenter-study
#8
Sara Mariotto, Sergio Ferrari, Salvatore Monaco, Maria Donata Benedetti, Kathrin Schanda, Daniela Alberti, Alessia Farinazzo, Ruggero Capra, Chiara Mancinelli, Nicola De Rossi, Roberto Bombardi, Luigi Zuliani, Marco Zoccarato, Raffaella Tanel, Adriana Bonora, Marco Turatti, Massimiliano Calabrese, Alberto Polo, Antonino Pavone, Luisa Grazian, GianPietro Sechi, Elia Sechi, Daniele Urso, Rachele Delogu, Francesco Janes, Luciano Deotto, Morena Cadaldini, Maria Rachele Bianchi, Gaetano Cantalupo, Markus Reindl, Alberto Gajofatto
Anti-myelin oligodendrocyte glycoprotein antibodies (MOG-Ab) recently emerged as a potential biomarker in patients with inflammatory demyelinating diseases of the central nervous system. We here compare the clinical and laboratory findings observed in a cohort of MOG-Ab seropositive and seronegative cases and describe IgG subclass analysis results. Consecutive serum samples referred to Verona University Neuropathology Laboratory for aquaporin-4 (AQP4)-Ab and/or MOG-Ab testing were analysed between March 2014 and May 2017...
October 23, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/29055481/clinical-characteristics-and-long-term-visual-outcome-of-optic-neuritis-in-neuromyelitis-optica-spectrum-disorder-a-comparison-between-thai-and-american-caucasian-cohorts
#9
Kavin Vanikieti, Anuchit Poonyathalang, Panitha Jindahra, Peggy Bouzika, Joseph F Rizzo, Dean M Cestari
BACKGROUND: Neuromyelitis optica spectrum disorder (NMOSD) occurs more commonly in Asian than Caucasian populations. Few studies have examined the clinical features and visual outcome of optic neuritis (ON) within NMOSD in different racial populations. The objective of this study was to compare the clinical characteristics and long-term visual outcome of a Thai and an American-Caucasian cohort with NMOSD-related ON. METHODS: Medical records including brain and orbital magnetic resonance imaging (MRI) of 16 consecutive subjects who developed visual loss due to ON as part of NMOSD evaluated at a single American tertiary referral center between 2006 and 2015 were reviewed and compared to those of 16 consecutive similar subjects evaluated at a single Thai tertiary referral center between 2010 and 2016...
October 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29046125/pretreatment-with-n-acetyl-cysteine-suppresses-chronic-reactive-astrogliosis-following-maternal-nanoparticle-exposure-during-gestational-period
#10
Atsuto Onoda, Ken Takeda, Masakazu Umezawa
Early pregnant employees are potentially and unintendedly exposed to industrial chemicals including nanoparticles. Developmental toxicity of nanoparticle exposure has been concerned because exposure to fine particle including carbon black nanoparticle (CB-NP) during the brain developmental stage enhances the risk of brain disorders. Maternal CB-NP exposure dose-dependently induces astrogliosis, which is an abnormal increase in the reactive astrocytes with glial fibrillary acidic protein (GFAP) and aquaporin-4 overexpression due to the destruction of nearby neurons and blood vessels...
October 19, 2017: Nanotoxicology
https://www.readbyqxmd.com/read/28986408/prevalence-and-clinical-features-of-neuromyelitis-optica-spectrum-disorders-in-northern-japan
#11
Hideki Houzen, Kimito Kondo, Masaaki Niino, Kazuhiro Horiuchi, Toshiyuki Takahashi, Ichiro Nakashima, Keiko Tanaka
OBJECTIVE: To clarify the prevalence and clinical characteristics of neuromyelitis optica spectrum disorders (NMOSD) in Japan and compare them with those in other ethnic populations. METHODS: Data processing sheets were sent to all related institutions in northern Japan and were collected from April to May 2016. Prevalence was determined on March 31, 2016, using the 2015 International Panel for NMO Diagnosis criteria. RESULTS: The crude prevalence was 4...
November 7, 2017: Neurology
https://www.readbyqxmd.com/read/28984163/epidemiology-of-nmosd-in-catalonia-influence-of-the-new-2015-criteria-in-incidence-and-prevalence-estimates
#12
Maria Sepúlveda, Marta Aldea, Domingo Escudero, Sara Llufriu, Georgina Arrambide, Susana Otero-Romero, J Sastre-Garriga, Lucía Romero-Pinel, Sergio Martínez-Yélamos, N Sola-Valls, Thais Armangué, Javier Sotoca, Antonio Escartín, René Robles-Cedeño, Lluís Ramió-Torrentà, Silvia Presas-Rodríguez, Cristina Ramo-Tello, Elvira Munteis, Raúl Pelayo, Laura Gubieras, Luis Brieva, Nicolau Ortiz, Mariona Hervás, Maria Alba Mañé-Martínez, Antonio Cano, Emili Vela, Mar Tintoré, Yolanda Blanco, Xavier Montalban, Francesc Graus, Albert Saiz
BACKGROUND: Population-based studies on neuromyelitis optica spectrum disorders (NMOSD) are limited, and it is unclear whether the rates have changed with the implementation of the new 2015 criteria. OBJECTIVES: To estimate the incidence and prevalence of NMOSD in Catalonia (Spain), using both the 2006 and the 2015 criteria. METHODS: In this clinic-based retrospective study, patients diagnosed with NMOSD between 2006 and 2015 were identified using multiple sources, including direct contact to all Catalan hospitals, identification of cases through the Catalan Health Surveillance System, and registry of antibodies to aquaporin-4 (AQP4-IgG) and myelin oligodendrocyte glycoprotein (MOG-IgG) in a reference laboratory...
October 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28972406/brain-derived-microparticles-in-patients-with-severe-isolated-tbi
#13
M Nekludov, B-M Bellander, D Gryth, H Wallen, F Mobarrez
PRIMARY OBJECTIVE: to investigate the presence of circulating microparticles (MPs) of brain tissue origin in the systemic and cerebrovenous blood of patients with severe traumatic brain injury (TBI). RESEARCH DESIGN: Prospective observational study in 15 consecutive patients with severe isolated TBI. METHODS AND PROCEDURES: We repeatedly measured concentrations of MPs expressing glial fibrillary acidic protein (GFAP), neuron-specific enolase (NSE) and aquaporin-4 (AQP4), in arterial and cerebrovenous blood at admittance to hospital and up to 72 hours after the injury...
October 3, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28942694/leptin-upregulates-aquaporin-9-expression-in-human-placenta-in-vitro
#14
Teresa Vilariño-García, Antonio Pérez-Pérez, Valeria Dietrich, Pilar Guadix, José L Dueñas, Cecilia L Varone, Alicia E Damiano, Víctor Sánchez-Margalet
Aquaporins are integral membrane proteins that have permeability functions in many tissues. Aquaporin 9 may transport not only water but also small molecules, such as glycerol, monocarboxylates, purines and pyrimidines. Aquaporin 9 is expressed in syncytiotrophoblast of human term placenta, and it may contribute to the embryonic/fetal growth and survival. We have previously found that Aquaporin 9 expression levels seem to be increased in placenta from gestational diabetes. Since leptin plasma levels and leptin expression are increased in placenta from gestational diabetes, we aimed to study the possible role of leptin on Aquaporin 9 expression in human placenta in vitro...
September 23, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28938959/rheumatoid-arthritis-complicates-noninvasive-whole-blood-gene-expression-testing-for-coronary-artery-disease
#15
Ryan Jessee, Erica Peart, Phil Beineke, Steven Rosenberg, James A Wingrove, William E Kraus, Kim M Huffman
BACKGROUND: Our objective was to evaluate an age- and sex-specific gene expression score (ASGES) previously validated to detect obstructive coronary artery disease (CAD) in patients with rheumatoid arthritis (RA). METHODS: We evaluated 20 pairs of nondiabetic coronary patients with and without RA, selected by matching on age, sex, race, body mass index, tobacco use, and number of diseased coronary vessels. Peripheral blood gene expression levels of 23 CAD-associated genes were measured, and a previously validated CAD risk score including age, sex, and gene expression levels (Corus CAD) was computed...
October 2017: American Heart Journal
https://www.readbyqxmd.com/read/28889151/hydrogen-water-ameliorates-the-severity-of-atopic-dermatitis-like-lesions-and-decreases-interleukin-1%C3%AE-interleukin-33-and-mast-cell-infiltration-in-nc-nga-mice
#16
Takuya Kajisa, Takuji Yamaguchi, Ailing Hu, Nobuhiro Suetake, Hiroyuki Kobayashi
OBJECTIVES: To examine the effect of hydrogen water (HW) on the severity of atopic dermatitis (AD) and elucidate the underlying pathophysiological mechanisms. METHODS: For this experimental study between March 2015 and December 2015, NC/Nga mice characterized by mild AD severity were given either HW (n=11) or purified water (PW) (n=9) ad libitum; specific-pathogen-free mice (n=9) were used as AD-free control. Atopic dermatitis severity score and transepidermal water loss (TEWL) were examined at baseline (0 week), and after 4 weeks of HW/PW treatment...
September 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28822459/oral-propylene-glycol-modifies-follicular-fluid-and-gene-expression-profiles-in-cumulus-oocyte-complexes-and-embryos-in-feed-restricted-heifers
#17
G Gamarra, C Ponsart, S Lacaze, F Nuttinck, A Cordova, P Mermillod, B Marquant-Le Guienne, D Monniaux, P Humblot, A A Ponter
Dietary supplementation with propylene glycol (PG) increases in vitro production of high-quality embryos in feed-restricted heifers. The aim of the present study was to evaluate the effects of PG in feed-restricted heifers on follicular fluid insulin and insulin-like growth factor (IGF) 1 concentrations, expression of IGF system genes in oocytes and cumulus cells and the expression of selected genes in blastocysts. Feed-restricted (R) heifers were drenched with water or PG during induced oestrous cycles (400mL of PG or water/drench, daily drenching at 1600 hours for the first 9 days of the oestrous cycle)...
August 21, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28820014/postinfectious-anti-myelin-oligodendrocyte-glycoprotein-antibody-positive-optic-neuritis-and-myelitis
#18
J P Vieira, J Sequeira, M J Brito
We report the case of a 9-year-old girl admitted with fever, headache, and a cerebrospinal fluid lymphocytic pleocytosis. Polymerase chain reaction was positive for human herpes virus 6. She subsequently developed ataxia and bilateral loss of vision. Magnetic resonance imaging (MRI) showed bilateral optic nerve lesions with extension to optic chiasm and a short-segment myelitis. Serologic studies were positive for Borrelia burgdorferi IgM. Anti-aquaporin 4 antibody was negative and anti-myelin oligodendrocyte glycoprotein antibody (MOG) positive...
January 1, 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/28816009/protective-effect-of-atazanavir-sulfate-against-pulmonary-fibrosis-in-vivo-and-in-vitro
#19
Shina Song, Yunxia Ji, Guanghua Zhang, Xue Zhang, Bin Li, Defang Li, Wanglin Jiang
Atazanavir sulfate, an antiretroviral protease inhibitor, has been used to treat HIV/AIDS, but its ability to serve as an anti-pulmonary fibrosis (PF) agent remains unknown. In this study, the effects of atazanavir sulfate on various aspects of PF were examined and CoCl2 was used to induce the hypoxia-mimicking condition in vitro, including epithelial-mesenchymal transition (EMT) in A549 cells, endothelial-mesenchymal transition (EndMT) in human pulmonary microvascular endothelial cells (HPMECs), proliferation in human lung fibroblasts (HLF-1) and potential protective effects in human type I alveolar epithelial cells (AT I)...
August 16, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28750658/complement-regulator-cd59-prevents-peripheral-organ-injury-in-rats-made-seropositive-for-neuromyelitis-optica-immunoglobulin-g
#20
Xiaoming Yao, Alan S Verkman
Pathogenesis in aquaporin-4 immunoglobulin G (AQP4-IgG) seropositive neuromyelitis optica spectrum disorders (herein called NMO) involves complement-dependent cytotoxicity initiated by AQP4-IgG binding to astrocyte AQP4. We recently reported that rats lacking complement inhibitor protein CD59 were highly susceptible to development of NMO pathology in brain and spinal cord following direct AQP4-IgG administration (Yao and Verkman, Acta Neuropath Commun 2017, 5:15). Here, we report evidence that CD59 is responsible for protection of peripheral, AQP4-expressing tissues in seropositive NMO...
July 27, 2017: Acta Neuropathologica Communications
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