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https://www.readbyqxmd.com/read/28633427/genotypic-variation-in-tolerance-to-drought-stress-is-highly-coordinated-with-hydraulic-conductivity-photosynthesis-interplay-and-aquaporin-expression-in-field-grown-mulberry-morus-spp
#1
Kanubothula Sitarami Reddy, Kalva Madhana Sekhar, Attipalli Ramachandra Reddy
Hydraulic conductivity quantifies the efficiency of a plant to transport water from root to shoot and is a major constriction on leaf gas exchange physiology. Mulberry (Morus spp.) is the most economically important crop for sericulture industry. In this study, we demonstrate a finely coordinated control of hydraulic dynamics on leaf gas exchange characteristics in 1-year-old field-grown mulberry genotypes (Selection-13 (S13); Kollegal Local (KL) and Kanva-2 (K2)) subjected to water stress by withholding water for 20 days and subsequent recovery for 7 days...
June 14, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28632458/aquaporins-novel-targets-for-age-related-ocular-disorders
#2
Rajkumar Patil, Haishan Wang, Najam A Sharif, Alok Mitra
Aquaporins (AQPs), a large family of membrane protein channels that facilitate transport of water and other small solutes, play important roles in physiological functions and human diseases. Up till now, 13 types of AQPs, numbered 0 through 12, have been identified in various mammalian tissues. Homologous genes for AQPs in amphibians, insects, and bacteria highlight the evolutionary conservation and, thus, the importance of these membrane channels. Many members of the AQP family are expressed in the eye. AQP1, which is a water-selective channel, is expressed in the anterior chamber (cornea, ciliary body, trabecular meshwork) and posterior chamber (retina and microvessels in choroid), controlling the fluid homeostasis in the eye...
June 20, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28630635/effect-of-abnormal-savda-munziq-a-traditional-uighur-herbal-medicine-on-pulmonary-function-and-aquaporins-of-copd-rat-model-with-abnormal-savda-syndrome
#3
Gao Zhen, Halmurat Upur, Wang Jing, Jing Jing, Li Zheng, Xu Dan, Li Fengsen
OBJECTIVE: To investigate the effect of abnormal savda munziq (ASM) on the pulmonary function and expression of lung-specific aquaporins in the rat model of chronic obstructive pulmonary disease with abnormal savda syndrome (ASSCOPD). METHODS: Eighty male rats were randomized into ASSCOPD, COPD, and control groups. ASSCOPD was further categorized into ASM and non-ASM groups. COPD model was established by combining fumigation with airway instillation of elastase; ASSCOPD model was developed based on COPD by induction with dry cold diet, cold dry environment, and plantar electric stimulation...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28630457/how-impaired-efficacy-happened-between-gancao-and-yuanhua-compounds-targets-and-pathways
#4
Jin-Gao Yu, Jianming Guo, Kevin Yue Zhu, Weiwei Tao, Yanyan Chen, Pei Liu, Yongqing Hua, Yuping Tang, Jin-Ao Duan
As recorded in Traditional Chinese Medicine (TCM) theory, Gancao (Glycyrrhizae Radix et Rhizoma) could weaken the pharmacological effect or increase the toxicity of Yuanhua (Genkwa Flos). However, the theory has been suspected due to lack of evidence. Here, we investigate whether Gancao could weaken Yuanhua's diuretic effect, if so, which chemicals and which targets may be involved. Results showed that Yuanhua exerted diuretic effect through down-regulating renal AQP 2, without electrolyte disturbances such as K(+) loss which has been observed as side-effect of most diuretics...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28627708/alterations-in-aqp4-expression-and-polarization-in-the-course-of-motor-neuron-degeneration-in-sod1g93a-mice
#5
Jiaying Dai, Weihao Lin, Minying Zheng, Qiang Liu, Baixuan He, Chuanming Luo, Xilin Lu, Zhong Pei, Huanxing Su, Xiaoli Yao
Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disease characterized by selective degeneration of upper and lower motor neurons. The disease progression is associated with the astrocytic environment. Aquaporin-4 (AQP4) water channels are the most abundant AQPs expressed in astrocytes, exerting important influences on central nervous system homeostasis. The present study aimed to characterize the alterations in AQP4 expression and loca-lization in superoxide dismutase 1 (SOD1) G93A transgenic mice...
June 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28611797/characterization-and-regulation-of-aquaporin-genes-of-sorghum-sorghum-bicolor-l-moench-in-response-to-waterlogging-stress
#6
Suhas Kadam, Alejandra Abril, Arun P Dhanapal, Robert P Koester, Wilfred Vermerris, Shibu Jose, Felix B Fritschi
Waterlogging is a significant environmental constraint to crop production, and a better understanding of plant responses is critical for the improvement of crop tolerance to waterlogged soils. Aquaporins (AQPs) are a class of channel-forming proteins that play an important role in water transport in plants. This study aimed to examine the regulation of AQP genes under waterlogging stress and to characterize the genetic variability of AQP genes in sorghum (Sorghum bicolor). Transcriptional profiling of AQP genes in response to waterlogging stress in nodal root tips and nodal root basal regions of two tolerant and two sensitive sorghum genotypes at 18 and 96 h after waterlogging stress imposition revealed significant gene-specific pattern with regard to genotype, root tissue sample, and time point...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28607573/effects-of-radix-astragali-and-its-split-components-on-gene-expression-profiles-related-to-water-metabolism-in-rats-with-the-dampness-stagnancy-due-to-spleen-deficiency-syndrome
#7
Wen-Xiao Zhao, Ning Cui, Hai-Qiang Jiang, Xu-Ming Ji, Xiao-Chun Han, Bing-Bing Han, Tong Wang, Shi-Jun Wang
Radix Astragali (RA) with slight sweet and warm property is a significant "qi tonifying" herb; it is indicated for the syndrome of dampness stagnancy due to spleen deficiency (DSSD). The purpose of this research was to explore effects of RA and its split components on gene expression profiles related to water metabolism in rats with the DSSD syndrome for identifying components representing property and flavor of RA. The results indicated that RA and its split components, especially polysaccharides component, significantly increased the body weight and the urine volume and decreased the water load index of model rats...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28607409/functional-characterization-of-aquaporin-like-genes-in-the-human-bed-bug-cimex-lectularius
#8
Hitoshi Tsujimoto, Joyce M Sakamoto, Jason L Rasgon
The bed bug Cimex lectularius is a blood-feeding re-emerging annoyance pest insect that has the ability to transmit Trypanosoma cruzi under experimental laboratory conditions. Aquaporins (AQPs) are water channel proteins that are essential in biological organisms. C. lectularius are constantly exposed to water-related stress, suggesting that AQPs may offer novel control avenues. We identified and cloned four AQPs from C. lectularius, assessed tissue and lifestage-specific expression, and characterized biochemical functions in vitro and in vivo...
June 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28597425/virus-induced-plasma-membrane-aquaporin-pspip2-1-silencing-inhibits-plant-water-transport-of-pisum-sativum
#9
Juanjuan Song, Guoliang Ye, Zhengjiang Qian, Qing Ye
BACKGROUND: Aquaporins (AQPs) are known to facilitate water transport across cell membranes, but the role of a single AQP in regulating plant water transport, particularly in plants other than Arabidopsis remains largely unexplored. In the present study, a virus-induced gene silencing (VIGS) technique was employed to suppress the expression of a specific plasma membrane aquaporin PsPIP2;1 of Pea plants (Pisum sativum), and subsequent effects of the gene suppression on root hydraulic conductivity (Lpr), leaf hydraulic conductivity (K leaf ), root cell hydraulic conductivity (Lprc), and leaf cell hydraulic conductivity (Lplc) were investigated, using hydroponically grown Pea plants...
December 2016: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28596233/adaptable-interaction-between-aquaporin-1-and-band-3-reveals-a-potential-role-of-water-channel-in-blood-co2-transport
#10
Kate Hsu, Ting-Ying Lee, Ammasi Periasamy, Fu-Jen Kao, Li-Tzu Li, Chuang-Yu Lin, Hui-Ju Lin, Marie Lin
Human CO2 respiration requires rapid conversion between CO2 and HCO3(-) Carbonic anhydrase II facilitates this reversible reaction inside red blood cells, and band 3 [anion exchange (AE)-1] provides a passage for HCO3(-) flux across the cell membrane. These 2 proteins are core components of the CO2 transport metabolon. Intracellular H2O is necessary for CO2/HCO3(-) conversion. However, abundantly expressed aquaporin (AQP)-1 in erythrocytes is thought not to be part of band 3 complexes or the CO2 transport metabolon...
June 8, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28595905/adiponectin-regulates-aqp3-via-ppar%C3%AE-in-human-hepatic-stellate-cells
#11
Matteo Tardelli, Thierry Claudel, Francesca V Bruschi, Veronica Moreno-Viedma, Michael Trauner
Aquaporins (AQPs) are trans-membrane proteins which allow the movement of water and glycerol required by hepatic stellate cells (HSC) for triglyceride formation and lipid storage. Adiponectin (ADPQ) is a hormone produced by the adipose tissue, which is known to increase AQP3 expression. Since ADPQ receptor signals via the nuclear receptor PPAR we aimed to explore the role of this pathway in AQP3 regulation by ADPQ in HSC. AQP3 and CPT1α expression increased only after ADPQ but not rosiglitazone stimulation...
June 5, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28584663/clinical-pitfall-false-positive-aquaporin-4-igg-leading-to-misdiagnosis-of-neuromyelitis-optica-spectrum-disorder-in-patient-with-spinal-arteriovenous-fistula
#12
Suradech Suthiphosuwan, Jiwon Oh, Aditya Bharatha
INTRODUCTION: We report the cases of a 68-year-old male with a filum terminale arteriovenous fistula (AVF) who was initially misdiagnosed with neuromyelitis optica spectrum disorder (NMOSD) based on imaging findings and false-positive aquaporin-4 IgG (AQP4-IgG). CASE PRESENTATION: A 68-year-old male presented with slowly progressive weakness and numbness in his bilateral lower extremities. He was initially diagnosed with NMOSD and treated with immunosuppressive therapy based on findings of extensive spinal cord edema on magnetic resonance imaging (MRI) and initial negative spinal angiography as well as positive AQP4-IgG...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28584298/role-of-aquaporin-7-in-ghrelin-and-glp-1-induced-improvement-of-pancreatic-%C3%AE-cell-function-after-sleeve-gastrectomy-in-obese-rats
#13
L Méndez-Giménez, S Becerril, S P Camões, I V da Silva, C Rodrigues, R Moncada, V Valentí, V Catalán, J Gómez-Ambrosi, J P Miranda, G Soveral, G Frühbeck, A Rodriguez
BACKGROUND/OBJECTIVES: Glycerol is a key metabolite for lipid accumulation in insulin-sensitive tissues as well as for pancreatic insulin secretion. We examined the role of aquaporin-7 (AQP7), the main glycerol channel in β-cells, and AQP12, a aquaporin related to pancreatic damage, in the improvement of pancreatic function and steatosis after sleeve gastrectomy in diet-induced obese rats. SUBJECTS/METHODS: Male Wistar obese rats (n=125) were subjected to surgical (sham operation and sleeve gastrectomy) or dietary (pair-fed to the amount of food eaten by sleeve-gastrectomized animals) interventions...
June 6, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28584277/analysis-of-aquaporins-in-brassicaceae-species-reveals-high-level-of-conservation-and-dynamic-role-against-biotic-and-abiotic-stress-in-canola
#14
Humira Sonah, Rupesh K Deshmukh, Caroline Labbé, Richard R Bélanger
Aquaporins (AQPs) are of vital importance in the cellular transport system of all living organisms. In this study, genome-wide identification, distribution, and characterization of AQPs were determined in Arabidopsis lyrata, Capsella grandiflora, C. rubella, Eutrema salsugineum, Brassica rapa, B. oleracea, and B. napus (canola). Classification and phylogeny of AQPs revealed the loss of XIPs and NIP-IIIs in all species. Characterization of distinctive AQP features showed a high level of conservation in spacing between NPA-domains, and selectivity filters...
June 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28577538/dai-huang-fu-zi-tang-alleviates-pulmonary-and-intestinal-injury-with-severe-acute-pancreatitis-via-regulating-aquaporins-in-rats
#15
Xin Kang, Xiao-Guang Lu, Li-Bin Zhan, Zheng-Kai Liang, Wen-Xiu Guo, Qi Ma, Yi Wang, Jian-Bo Song, Jin-Yu Feng, Cong-Han Wang, Li-Zhi Bai, Yi Song, Guo-Hui Liu
BACKGROUND: Dai-Huang-Fu-Zi-Tang (DHFZT) is a famous traditional Chinese prescription with intestinal obstruction, acute pancreatitis and cholecystalgia for thousands of years. Our previous work found that DHFZT could act against pulmonary and intestinal pathological injury in rats with severe acute pancreatitis (SAP). But the underlying mechanism has not been fully elucidated. The aim of present study was to investigate whether DHFZT could relieve pulmonary and intestinal injury by regulating aquaporins after SAP induced by sodium taurocholate in rats...
June 2, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28573544/lipocalin-2-enhances-mesenchymal-stem-cell-based-cell-therapy-in-acute-kidney-injury-rat-model
#16
Mehryar Habibi Roudkenar, Raheleh Halabian, Hossein Abdul Tehrani, Fatemeh Amiri, Ali Jahanian-Najafabadi, Amaneh Mohammadi Roushandeh, Zahra Abbasi-Malati, Yoshikazu Kuwahara
Acute kidney injury (AKI) is one of the most common health-threatening diseases in the world. There is still no effective medical treatment for AKI. Recently, Mesenchymal stem cell (MSC)-based therapy has been proposed for treatment of AKI. However, the microenvironment of damaged kidney tissue is not favorable for survival of MSCs which would be used for therapeutic intervention. In this study, we genetically manipulated MSCs to up-regulate lipocalin-2 (Lcn2) and investigated whether the engineered MSCs (MSC-Lcn2) could improve cisplatin-induced AKI in a rat model...
June 2, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28565763/effects-of-glucocorticoid-on-the-expression-and-regulation-of-aquaporin-5-in-the-paranasal-sinus-of-rats-with-chronic-rhinosinusitis
#17
Chen-Jie Yu, Xin-Yan Cui, Ling Lu, Jun Yang, Bin Chen, Cheng-Wen Zhu, Xia Gao
Aquaporins (AQPs) are water-specific membrane channel proteins that regulate water homeostasis for cells and organisms. AQP5 serves an important role in the maintenance of mucosal water homeostasis, and potentially contributes to mucosal edema and inflammation formation in chronic rhinosinusitis (CRS). The aim of the present study was to explore the expression pattern of AQP5 and the effect of glucocorticoids on AQP5 expression in rats with CRS. The rats were randomly divided into three equal groups, as follows: CRS, dexamethasone (dexa) treatment and control groups...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28553646/protection-against-blast-induced-traumatic-brain-injury-by-increase-in-brain-volume
#18
Ming Gu, Usmah Kawoos, Richard McCarron, Mikulas Chavko
Blast-induced traumatic brain injury (bTBI) is a leading cause of injuries in recent military conflicts and it is responsible for an increased number of civilian casualties by terrorist attacks. bTBI includes a variety of neuropathological changes depending on the intensity of blast overpressure (BOP) such as brain edema, neuronal degeneration, diffuse axonal damage, and vascular dysfunction with neurological manifestations of psychological and cognitive abnormalities. Internal jugular vein (IJV) compression is known to reduce intracranial compliance by causing an increase in brain volume and was shown to reduce brain damage during closed impact-induced TBI...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28546424/topical-erythropoietin-treatment-accelerates-the-healing-of-cutaneous-burn-wounds-in-diabetic-pigs-through-an-aquaporin-3-dependent-mechanism
#19
Saher Hamed, Yehuda Ullmann, Dana Egozi, Aviad Keren, Essam Daod, Omer Anis, Hoda Kabha, Mark Belokopytov, Manal Ashkar, Rona Shofti, Asaph Zaretsky, Michal Schlesinger, Luc Teot, Paul Y Liu
We have previously reported that the topical application of erythropoietin (EPO) to cutaneous wounds in rats and mice with experimentally-induced diabetes mellitus (DM) accelerates their healing by stimulating angiogenesis, reepithelialization, and collagen deposition, and suppressing the inflammatory response and apoptosis. Aquaporins (AQP) are integral membrane proteins whose function is to regulate intracellular fluid hemostasis by enabling the transport of water and glycerol. AQP3 is the AQP that is expressed in the skin where it facilitates cell migration and proliferation and reepithelialization during wound healing...
May 25, 2017: Diabetes
https://www.readbyqxmd.com/read/28545373/modulation-of-aquaporins-by-dietary-patterns-and-plant-bioactive-compounds
#20
Ilaria Cataldo, Anna Maggio, Patrizia Gena, Ornella de Bari, Grazia Tamma, Piero Portincasa, Giuseppe Calamita
Healthful dietary patterns and bioactive compounds supplementation can be adopted as simple and easy intervention to prevent, attenuate or cure clinical disorders, especially when it comes degenerative and chronic diseases. In the recent years, a growing body of evidence indicates Aquaporins (AQPs), a family of membrane channel proteins widely expressed in the human body, among the targets underlying the beneficial action played by some food nutrients and phytochemical compounds. Here, we provide an overview of what is known regarding the AQP modulation exerted by healthful dietary patterns and plant polyphenols...
May 23, 2017: Current Medicinal Chemistry
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