journal
MENU ▼
Read by QxMD icon Read
search

Pflügers Archiv: European Journal of Physiology

journal
https://www.readbyqxmd.com/read/28508947/podocytes-from-the-diagnostic-and-therapeutic-point-of-view
#1
REVIEW
Janina Müller-Deile, Mario Schiffer
The central role of podocytes in glomerular diseases makes this cell type an interesting diagnostic tool as well as a therapeutic target. In this review, we discuss the current literature on the use of podocytes and podocyte-specific markers as non-invasive diagnostic tools in different glomerulopathies. Furthermore, we highlight the direct effects of drugs currently used to treat primary glomerular diseases and describe their direct cellular effects on podocytes. A new therapeutic potential is seen in drugs targeting the podocytic actin cytoskeleton which is essential for podocyte foot process structure and function...
May 16, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28497275/na-ca-2-exchangers-and-orai-channels-jointly-refill-endoplasmic-reticulum-er-ca-2-via-er-nanojunctions-in-vascular-endothelial-cells
#2
Cristiana M L Di Giuro, Niroj Shrestha, Roland Malli, Klaus Groschner, Cornelis van Breemen, Nicola Fameli
We investigated the role of Na(+)/ Ca(2+) exchange (NCX) in the refilling of endoplasmic reticulum (ER) Ca(2+) in vascular endothelial cells under various conditions of cell stimulation and plasma membrane (PM) polarization. Better understanding of the mechanisms behind basic ER Ca(2+) content regulation is important, since current hypotheses on the possible ultimate causes of ER stress point to deterioration of the Ca(2+) transport mechanism to/from ER itself. We measured [Ca(2+)]i temporal changes by Fura-2 fluorescence under experimental protocols that inhibit a host of transporters (NCX, Orai, non-selective transient receptor potential canonical (TRPC) channels, sarco/endoplasmic reticulum Ca(2+) ATPase (SERCA), Na(+)/ K(+) ATPase (NKA)) involved in the Ca(2+) communication between the extracellular space and the ER...
May 11, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28497274/endocytic-receptor-lrp2-megalin-of-holoprosencephaly-and-renal-fanconi-syndrome
#3
REVIEW
Thomas E Willnow, Annabel Christ
Megalin (or LRP2) is an endocytic receptor that plays a central role in embryonic development and adult tissue homeostasis. Loss of this receptor in congenital or acquired diseases results in multiple organ dysfunctions, including forebrain malformation (holoprosencephaly) and renal reabsorption defects (renal Fanconi syndrome). Here, we describe current concepts of the mode of receptor action that include co-receptors and a repertoire of different ligands, and we discuss how these interactions govern functional integrity of the kidney and the brain, and cause disease when defective...
May 11, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28488023/glucose-enhances-rotavirus-enterotoxin-induced-intestinal-chloride-secretion
#4
Liangjie Yin, Rejeesh Menon, Reshu Gupta, Lauren Vaught, Paul Okunieff, Sadasivan Vidyasagar
Rotavirus causes severe diarrhea in small children and is typically treated using glucose-containing oral rehydration solutions; however, glucose may have a detrimental impact on these patients, because it increases chloride secretion and presumably water loss. The rotavirus enterotoxin nonstructural protein 4 (NSP4) directly inhibits glucose-mediated sodium absorption. We examined the effects of NSP4 and glucose on sodium and chloride transport in mouse small intestines and Caco-2 cells. Mouse small intestines and Caco-2 cells were incubated with NSP4114-135 in the presence/absence of glucose...
May 10, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28477148/a-low-ca-2-i-induced-enhancement-of-camp-activated-ciliary-beating-by-pde1a-inhibition-in-mouse-airway-cilia
#5
Haruka Kogiso, Shigekuni Hosogi, Yukiko Ikeuchi, Saori Tanaka, Chikao Shimamoto, Hitoshi Matsumura, Takashi Nakano, Koh-Ichi Sano, Toshio Inui, Yoshinori Marunaka, Takashi Nakahari
This study demonstrated that PDE1 (phosphodiesterase 1) existing in the ciliary beat frequency (CBF)-regulating metabolon regulates CBF in procaterol-stimulated lung airway ciliary cells of mouse. Procaterol (an β2-agonist) increased the ciliary bend angle (CBA) and CBF via cAMP accumulation in the ciliary cells of mice: interestingly, the time course of CBF increase was slower than that of CBA increase. However, IBMX (3-isobutyl-1-methylxanthine, an inhibitor of PDE) increased CBA and CBF in an identical time course...
May 5, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28474133/erratum-to-dynamic-monitoring-of-gi-o-protein-mediated-decreases-of-intracellular-camp-by-fret-based-epac-sensors
#6
Ursula Storch, Julie Straub, Serap Erdogmus, Thomas Gudermann, Michael Mederos Y Schnitzler
No abstract text is available yet for this article.
May 4, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28466243/contractile-properties-of-periosteal-arterioles-in-the-guinea-pig-tibia
#7
Hiroyasu Fukuta, Retsu Mitsui, Hiromichi Takano, Hikaru Hashitani
The periosteal arterioles of the compact bone may play a critical role in bone growth. To explore the contractile properties of tibial arterioles, spontaneous and nerve-evoked constrictions were compared in preparations from 3-week-old and 1-year-old guinea-pigs. Changes in arteriole diameters were measured using video microscopy. Their innervation was investigated using fluorescence immunohistochemistry. Fifty per cent and 40% of tibial arterioles from 3-week-old and 1-year-old guinea-pigs, respectively, exhibited spontaneous phasic constrictions that were inhibited by 1 μM nifedipine, 10 μM cyclopiazonic acid or 100 μM 2-APB...
May 2, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28456852/fluid-induced-lung-injury-role-of-trpv4-channels
#8
Shailesh Bihari, Dani-Louise Dixon, Mark D Lawrence, Dylan De Bellis, Claudine S Bonder, David P Dimasi, Andrew D Bersten
Administration of bolus intravenous fluid is associated with respiratory dysfunction and increased mortality, findings with no clear mechanistic explanation. The objective of this study was to examine whether bolus intravenous (i.v.) fluid administration results in acute lung injury in a rat model and further, to examine whether this injury is associated with transient receptor potential vallinoid (TRPV)4 channel function and endothelial inflammatory response. Healthy male Sprague-Dawley rats were administered 60 ml/kg 0...
April 29, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28455748/ck2-is-a-key-regulator-of-slc4a2-mediated-cl-hco3-exchange-in-human-airway-epithelia
#9
Salam H Ibrahim, Mark J Turner, Vinciane Saint-Criq, James Garnett, Iram J Haq, Malcolm Brodlie, Chris Ward, Christian Borgo, Mauro Salvi, Andrea Venerando, Michael A Gray
Transepithelial bicarbonate secretion by human airway submucosal glands and surface epithelial cells is crucial to maintain the pH-sensitive innate defence mechanisms of the lung. cAMP agonists stimulate HCO3(-) secretion via coordinated increases in basolateral HCO3(-) influx and accumulation, as well as CFTR-dependent HCO3(-) efflux at the luminal membrane of airway epithelial cells. Here, we investigated the regulation of a basolateral located, DIDS-sensitive, Cl(-)/HCO3(-) exchanger, anion exchanger 2 (AE2; SLC4A2) which is postulated to act as an acid loader, and therefore potential regulator of HCO3(-) secretion, in human airway epithelial cells...
April 28, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28455747/oxidative-stress-promotes-myocardial-fibrosis-by-upregulating-kca3-1-channel-expression-in-agt-ren-double-transgenic-hypertensive-mice
#10
Li-Ping Wang, Su-Jing Fan, Shu-Min Li, Xiao-Jun Wang, Jun-Ling Gao, Xiu-Hong Yang
The intermediate-conductance Ca(2+)-activated K(+) (KCa3.1) channels play a pivotal role in the cardiac fibroblast proliferation and inflammatory reaction during the progression of myocardial fibrosis. However, the relationship between KCa3.1 expression and oxidative stress, the important factor of promoting fibrosis, has not been clearly established. This study was designed to investigate whether the role of oxidative stress in promoting myocardial fibrosis is related to KCa3.1 channel by using biochemical approaches...
April 28, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28439717/negligible-effect-of-enos-palmitoylation-on-fatty-acid-regulation-of-contraction-in-ventricular-myocytes-from-healthy-and-hypertensive-rats
#11
Chun Li Jin, Yu Na Wu, Ji Hyun Jang, Zai Hao Zhao, Goo Taeg Oh, Sung Joon Kim, Yin Hua Zhang
S-palmitoylation is an important post-translational modification that affects the translocation and the activity of target proteins in a variety of cell types including cardiomyocytes. Since endothelial nitric oxide synthase (eNOS) is known to be palmitoylated and the activity of eNOS is essential in fatty acid-dependent β-oxidation in muscle, we aimed to test whether palmitoylation of eNOS is involved in palmitic acid (PA) regulation of left ventricular (LV) myocyte contraction from healthy (sham) and hypertensive (HTN) rats...
April 25, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28434061/the-sources-of-calcium-for-noradrenaline-induced-contraction-in-the-human-thoracic-internal-artery
#12
Leszek Buzun, Beata Modzelewska, Anna Kostrzewska, Ewa Kleszczewska, Tomasz Kleszczewski
The aim of the present study was to examine the contribution of intracellular and extracellular calcium sources in contraction caused by noradrenaline (NA) of the human internal thoracic artery (ITA) in vitro. Distal segments of ITA were obtained from 20 patients (aged 38-73, at the time of routine coronary artery surgical revascularization (CABG)). Contractile responses to 10(-6) mol/L NA in the physiological salt solution and in Ca(2+)-free solution without and after incubation with 10(-6) mol/L thapsigargin (TSG) were recorded under isometric conditions...
April 22, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28429070/properties-of-synchronous-spontaneous-ca-2-transients-in-the-mural-cells-of-rat-rectal-arterioles
#13
Retsu Mitsui, Hikaru Hashitani
Synchrony of spontaneous Ca(2+) transients among venular mural cells (smooth muscle cells and pericytes) in visceral organs relies on the intercellular spread of L-type voltage-dependent Ca(2+) channel (LVDCC)-dependent depolarisations. However, the mechanisms underlying the synchrony of spontaneous Ca(2+) transients between arteriolar mural cells are less understood. The spontaneous intracellular Ca(2+) dynamics of arteriolar mural cells in the rat rectal submucosa were visualised by Cal-520 Ca(2+) imaging to analyse their synchrony...
April 21, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28405802/vasculo-protective-effect-of-bms-309403-is-independent-of-its-specific-inhibition-of-fatty-acid-binding-protein-4
#14
Yuta Okamura, Kosuke Otani, Akihiro Sekiguchi, Taisuke Kogane, Chiharu Kakuda, Yuzaburo Sakamoto, Tomoko Kodama, Muneyoshi Okada, Hideyuki Yamawaki
Fatty acid-binding protein (FABP) 4 is an adipocytokine mainly expressed in adipocyte and macrophage. Blood FABP4 is related not only to metabolic disorders including insulin resistance and atherosclerosis but also increased blood pressure. We tested the hypothesis that FABP4 plays roles in pathogenesis of hypertension development including proliferation, migration, and inflammation of vascular smooth muscle cells (SMCs) as well as contractile reactivity. FABP4 alone had no influence on proliferation, migration, and inflammation of rat mesenteric arterial SMCs, while it significantly enhanced smooth muscle contraction and increases of systolic blood pressure (SBP) induced by noradrenaline (NA)...
April 13, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28405801/urine-exosomes-from-healthy-and-hypertensive-pregnancies-display-elevated-level-of-%C3%AE-subunit-and-cleaved-%C3%AE-and-%C3%AE-subunits-of-the-epithelial-sodium-channel-enac
#15
Maria R Nielsen, Britta Frederiksen-Møller, Rikke Zachar, Jan S Jørgensen, Mie R Hansen, Rikke Ydegaard, Per Svenningsen, Kristian Buhl, Boye L Jensen
Preeclampsia is characterized by hypertension, proteinuria, suppression of plasma renin-angiotensin-aldosterone, and impaired urine sodium excretion. Aberrantly filtered plasmin in urine may activate proteolytically the γ-subunit of the epithelial sodium channel (ENaC) and promote Na(+) reabsorption and urine K(+) loss. Plasma and urine was sampled from patients with preeclampsia, healthy pregnant controls and non-pregnant women, and from patients with nephrostomy catheters. Aldosterone concentration, urine plasminogen, and protein were determined...
April 12, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28389776/senotherapy-growing-old-and-staying-young
#16
REVIEW
Roland Schmitt
Cellular senescence, which has been linked to age-related diseases, occurs during normal aging or as a result of pathological cell stress. Due to their incapacity to proliferate, senescent cells cannot contribute to normal tissue maintenance and tissue repair. Instead, senescent cells disturb the microenvironment by secreting a plethora of bioactive factors that may lead to inflammation, regenerative dysfunction and tumor progression. Recent understanding of stimuli and pathways that induce and maintain cellular senescence offers the possibility to selectively eliminate senescent cells...
April 7, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28389775/erratum-to-sensitisation-of-trpv4-by-par2-is-independent-of-intracellular-calcium-signalling-and-can-be-mediated-by-the-biased-agonist-neutrophil-elastase
#17
Silvia Sostegni, Alexei Diakov, Peter McIntyre, Nigel Bunnett, Christoph Korbmacher, Silke Haerteis
No abstract text is available yet for this article.
April 7, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28386636/dynamic-monitoring-of-gi-o-protein-mediated-decreases-of-intracellular-camp-by-fret-based-epac-sensors
#18
Ursula Storch, Julie Straub, Serap Erdogmus, Thomas Gudermann, Michael Mederos Y Schnitzler
Analysis of G-protein-coupled receptor (GPCR) signaling, in particular of the second messenger cAMP that is tightly controlled by Gs- and Gi/o-proteins, is a central issue in biomedical research. The classical biochemical method to monitor increases in intracellular cAMP concentrations consists of a radioactive multicellular assay, which is well established, highly sensitive, and reproducible, but precludes continuous spatial and temporal assessment of cAMP levels in single living cells. For this purpose, Förster resonance energy transfer (FRET)-based Epac cAMP sensors are well suitable...
April 6, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28382481/anion-exchange-through-band-3-protein-in-canine-leishmaniasis-at-different-stages-of-disease
#19
Rossana Morabito, Alessia Remigante, Mauro Cavallaro, Alessandro Taormina, Giuseppina La Spada, Angela Marino
Band 3 protein efficiency in mediating Cl(-)/HCO3(-) exchange through erythrocytes membrane is reduced by oxidative stress. The aim of the present study was to verify whether and how anion transport through band 3 protein may be useful in monitoring canine leishmaniasis (Leishmania infantum) development, a disease associated to membrane protein degradation and oxidative stress. To accomplish this aim, serological analysis to determine IFAT (immunofluorescence antibody test) titers against leishmaniasis has been performed and 1:160 and 1:540 titers, determined at diagnosis and after 6 months, were considered for experiments...
April 5, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28382480/biology-of-pancreatic-stellate-cells-more-than-just-pancreatic-cancer
#20
REVIEW
Pawel E Ferdek, Monika A Jakubowska
Pancreatic stellate cells, normally quiescent, are capable of remarkable transition into their activated myofibroblast-like phenotype. It is now commonly accepted that these cells play a pivotal role in the desmoplastic reaction present in severe pancreatic disorders. In recent years, enormous scientific effort has been devoted to understanding their roles in pancreatic cancer, which continues to remain one of the most deadly diseases. Therefore, it is not surprising that considerably less attention has been given to studying physiological functions of pancreatic stellate cells...
April 5, 2017: Pflügers Archiv: European Journal of Physiology
journal
journal
21977
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"