Local renal aldosterone production induces inflammation and matrix formation in kidneys of diabetic rats.

Abstract:

:Recently, we reported the presence of a local renal aldosterone production. In the present study, we tested the hypothesis that local aldosterone production in the kidney contributes to renal inflammation, matrix formation and albuminuria associated with diabetes. We evaluated changes in renal aldosterone content (RAC), aldosterone synthase expression, nuclear factor kappaB (NFkappaB), tumour necrosis factor alpha (TNFalpha), interleukin-6 (IL-6), transforming growth factor beta (TGFbeta), glomerular fibronectin, collagen type IV and urinary albumin extraction (UAE) in response to the aldosterone synthase inhibitor FAD286. Studies were conducted in adrenalectomized, normoglycaemic (control) or diabetic rats for 14 weeks. The FAD286 was administered during the last 10 weeks of the study. Plasma aldosterone levels were not detectable in any of the study groups. Compared with control rats, diabetic rats had higher levels of RAC by 488% (P < 0.01), NFkappaB by 293% (P < 0.01), TNFalpha by 356% (P < 0.01), IL-6 by 378% (P < 0.01), TGFbeta by 337% (P < 0.01) and UAE by 1122% (P < 0.01), and increased glomerular fibronectin and collagen type IV immunostaining. In diabetic rats, FAD286 reduced RAC (P < 0.01), UAE (P < 0.05), NFkappaB mRNA, TNFalpha mRNA, IL-6 mRNA and TGFbeta mRNA by 51, 41, 41 and 52% and also their proteins and decreased glomerular fibronectin and collagen type IV immunostaining. In conclusion, diabetes increases local aldosterone production in the kidney, which contributes to development of renal inflammation, matrix formation and albuminuria. Inhibition of aldosterone production in the kidney could be helpful in management of diabetic nephropathy.

journal_name

Exp Physiol

journal_title

Experimental physiology

authors

Siragy HM,Xue C

doi

10.1113/expphysiol.2008.042085

subject

Has Abstract

pub_date

2008-07-01 00:00:00

pages

817-24

issue

7

eissn

0958-0670

issn

1469-445X

pii

expphysiol.2008.042085

journal_volume

93

pub_type

杂志文章
  • A hypoxia complement differentiates the muscle response to endurance exercise.

    abstract::Metabolic stress is believed to constitute an important signal for training-induced adjustments of gene expression and oxidative capacity in skeletal muscle. We hypothesized that the effects of endurance training on expression of muscle-relevant transcripts and ultrastructure would be specifically modified by a hypoxi...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.2009.051029

    authors: Schmutz S,Däpp C,Wittwer M,Durieux AC,Mueller M,Weinstein F,Vogt M,Hoppeler H,Flück M

    更新日期:2010-06-01 00:00:00

  • Evolution of contractile and elastic properties of rat soleus muscle fibres under unloading conditions.

    abstract::Rats were submitted to 14 days of hindlimb suspension in order to examine the contractile and elastic properties of the soleus muscles under disuse conditions. The calcium/strontium activation properties, the maximal shortening velocity (V0), as well as the time behaviour of force transients following quick releases a...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1111/j.1469-445x.1999.tb00075.x

    authors: Toursel T,Stevens L,Mounier Y

    更新日期:1999-01-01 00:00:00

  • Noxious somatic stimuli diminish respiratory-sympathetic coupling by selective resetting of the respiratory rhythm in anaesthetized rats.

    abstract::Noxious somatic stimulation evokes respiratory and autonomic responses. The mechanisms underlying the responses and the manner in which they are co-ordinated are still unclear. The effects of activation of somatic nociceptive fibres on lumbar sympathetic nerve activity at slow (2-10 Hz) and fast frequency bands (100-1...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.2012.066365

    authors: Korim WS,Egwuenu E,Fong AY,McMullan S,Cravo SL,Pilowsky PM

    更新日期:2012-10-01 00:00:00

  • Effects of reactive oxygen species on aspects of excitation-contraction coupling in chemically skinned rabbit diaphragm muscle fibres.

    abstract::Oxidants have been suggested to enhance contractile function in unfatigued muscle. In this study we aimed to determine the effect of oxidants on "chemically skinned" diaphragm muscle fibre bundles. The sarcoplasmic reticulum and contractile proteins were exposed to superoxide anions (O2-) and hydrogen peroxide (H2O2) ...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/eph8602109

    authors: Darnley GM,Duke AM,Steele DS,MacFarlane NG

    更新日期:2001-03-01 00:00:00

  • Whole cell recordings from respiratory neurones in an arterially perfused in situ neonatal rat preparation.

    abstract::For synaptic and cellular analyses of the mammalian respiratory network, intracellular recording and good pharmacological access to respiratory neurones is required. Using an existing arterially perfused in situ preparation of neonatal rat, we report on a method allowing stable intracellular recordings of ventrolatera...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/eph8802639

    authors: Dutschmann M,Paton JF

    更新日期:2003-11-01 00:00:00

  • Interactions between maternal subtotal nephrectomy and salt: effects on renal function and the composition of plasma in the late gestation sheep fetus.

    abstract::Effects of altered maternal salt intake between 122 and 127 days gestation (term is 150 days) were studied in eight fetuses carried by ewes which had renal insufficiency caused by subtotal nephrectomy (STNxF) and seven fetuses carried by intact ewes (IntF). Plasma sodium and osmolality were increased in ewes with subt...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.2007.039149

    authors: Boyce AC,Gibson KJ,Thomson CL,Lumbers ER

    更新日期:2008-02-01 00:00:00

  • Daily patterns of secretion of neurohypophysial hormones in man: effect of age.

    abstract::The neurohypophysial hormone vasopressin contributes to control of urine output and, while urine flow shows a clear daily rhythm, there has been debate as to whether this is true of neurohypophysial hormones. A study was performed on fifteen adult males, with a mean age of 25 years, over a 24 h period, nine blood samp...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.1998.sp004124

    authors: Forsling ML,Montgomery H,Halpin D,Windle RJ,Treacher DF

    更新日期:1998-05-01 00:00:00

  • Increased sensitization of the myofilaments in rat neonatal portal vein: a potential mechanism.

    abstract::The contractile regulation of neonatal smooth muscle was studied in rat neonatal portal vein. Strips of beta-escin-permeabilized portal vein from 3- to 5-day-old rats and 5- to 6-week-old rats were mounted on a 'bubble chamber' in calcium solutions buffered with 10 mM EGTA. Although the overall tension development was...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.1997.sp004084

    authors: Bruce L,Nixon GF

    更新日期:1997-11-01 00:00:00

  • The mode of action of several opioids on cardiac muscle.

    abstract::The objective of the experiments was to investigate the cellular basis of the inotropic effect on myocardium of several opioids which have been implicated in producing cardiotoxic effects in human poisoning. Opioids exerted negative inotropic effects, with half-maximal concentrations between 10 microM (dextropropoxyph...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.1997.sp004021

    authors: Wu C,Fry CH,Henry J

    更新日期:1997-03-01 00:00:00

  • Optical reporters of synaptic activity in neural circuits.

    abstract::One of the most basic computational elements within a circuit is the synapse across which signals are transferred. Here we summarize some experimental strategies that allow the synaptic basis of circuit function to be studied through imaging. The two most promising approaches available currently are pHluorin-based rep...

    journal_title:Experimental physiology

    pub_type: 杂志文章,评审

    doi:10.1113/expphysiol.2009.051953

    authors: Dreosti E,Lagnado L

    更新日期:2011-01-01 00:00:00

  • White blood cell concentrations during lower body negative pressure and blood loss in humans.

    abstract:NEW FINDINGS:What is the central question of this study? Is lower body negative pressure a useful surrogate to study white blood cell responses to haemorrhage in humans? What is the main finding and its importance? We found that lower body negative pressure appears to be a useful surrogate to study the early white bloo...

    journal_title:Experimental physiology

    pub_type: 杂志文章,随机对照试验

    doi:10.1113/EP085952

    authors: van Helmond N,Johnson BD,Curry TB,Cap AP,Convertino VA,Joyner MJ

    更新日期:2016-10-01 00:00:00

  • Human endothelial function and microvascular ageing.

    abstract::Age is a primary risk factor for cardiovascular disease, and this is an increasingly important public health concern because of an increase in the absolute number and proportion of the population at an older age in many countries. A key component of cardiovascular ageing is reduced function of the vascular endothelium...

    journal_title:Experimental physiology

    pub_type: 杂志文章,评审

    doi:10.1113/expphysiol.2008.043349

    authors: Gates PE,Strain WD,Shore AC

    更新日期:2009-03-01 00:00:00

  • Changes in prefrontal cerebral oxygenation and microvascular blood volume in hypoxia and possible association with acute mountain sickness.

    abstract:NEW FINDINGS:What is the central question of this study? The role of the cerebral haemodynamic response to either normobaric or hypobaric hypoxia in people susceptible to acute mountain sickness (AMS) is still under debate. Prefrontal cortex near-infrared spectroscopy-derived parameters were monitored in normobaric hyp...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/EP088515

    authors: Manferdelli G,Marzorati M,Easton C,Porcelli S

    更新日期:2021-01-01 00:00:00

  • The inspired sine-wave technique: A novel method to measure lung volume and ventilatory heterogeneity.

    abstract:NEW FINDINGS:What is the central question of this study? We present a new non-invasive medical technology, the inspired sine-wave technique, which involves inhalation of sinusoidally fluctuating concentrations of a tracer gas. The technique requires only passive patient cooperation and can monitor different cardiorespi...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/EP086867

    authors: Bruce RM,Phan PA,Pacpaco E,Rahman NM,Farmery AD

    更新日期:2018-05-01 00:00:00

  • Altered [3H]ouabain binding to cardiac muscle in insulin-dependent and non-insulin-dependent diabetic rats.

    abstract::The aim of this study was to determine the ouabain receptor density, Na+,K(+)-ATPase function and contractile properties of cardiac muscle in insulin-dependent and non-insulin-dependent rat diabetes mellitus (IDDM and NIDDM, respectively) and the reversibility of the diabetes-induced changes by insulin or thyroxin sub...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.1998.sp004092

    authors: Bányász T,Kovács T

    更新日期:1998-01-01 00:00:00

  • Primary and secondary afferent discharges from the same spindle during chain fibre contraction in cat tenuissimus muscle.

    abstract::Pairs of Ia and II afferent fibres supplying primary and secondary endings lying in the same tenuissimus spindles were prepared in barbiturate anaesthetized cats in order to compare the variability in the rhythm of discharge of the two endings during responses elicited by the contraction of different intrafusal muscle...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.1994.sp003801

    authors: Celichowski J,Emonet-Dénand F,Gladden M,Laporte Y,Petit J

    更新日期:1994-09-01 00:00:00

  • Neuropeptides and disuse of the rat parotid gland.

    abstract::Rats were fed a liquid diet with the aim of decreasing nervous reflex activity in the parotid glands. In rats killed after 21 days on this diet the glands were atrophied and the total amounts of the neuropeptides, substance P, vasoactive intestinal peptide and calcitonin gene-related peptide, were lower than in contro...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.1990.sp003435

    authors: Månsson B,Ekman R,Håkanson R,Ekström J

    更新日期:1990-07-01 00:00:00

  • The integrity of the FOG-2 LXCXE pRb-binding motif is required for small intestine homeostasis.

    abstract:NEW FINDINGS:What is the central question of this study? Do Fog2Rb-/Rb- mice present a defect of small intestine homeostasis? What is the main finding and its importance? The importance of interactions between FOG-2 and pRb in adipose tissue physiology has previously been demonstrated. Here it is shown that this intera...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/EP087369

    authors: Goupille O,Kadri Z,Langelé A,Luccantoni S,Badoual C,Leboulch P,Chrétien S

    更新日期:2019-07-01 00:00:00

  • Mechanical properties of smooth muscle portal vein in normal and dystrophin-deficient (mdx) mice.

    abstract::Mechanical properties of the vascular smooth muscle from normal and dystrophin-deficient (mdx) mice were examined. Changes in resting and developed tensions in response to stretch were recorded in isolated portal vein. The vascular segments were elongated in 5 % increments of the 'in situ' length (Lr) up to 1.30Lr. Th...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:

    authors: Mancinelli R,Tonali P,Romani R,Tringali A,Vargiu R,AZZENA GB

    更新日期:1999-09-01 00:00:00

  • Changes in human and rat uterine phosphoethanolamine and taurine with pregnancy and parturition.

    abstract::Phosphoethanolamine and taurine have been identified in uterine extracts from rat and, for the first time, human tissue. The concentration of phosphoethanolamine [PEtn] determined by HPLC and 31P NMR spectroscopy, increased markedly (40%) within the first 6-12 h following parturition in rats, suggesting a role in invo...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.1994.sp003794

    authors: Phoenix J,Wray S

    更新日期:1994-07-01 00:00:00

  • Volumetric change of the lateral ventricles in the human brain following glucose loading.

    abstract::Lateral ventricular volumes were monitored and quantified using accurately registered magnetic resonance images (MRIs) in six healthy individuals 30 min before and up to 4 h after ingestion of a glucose drink. The volume of the lateral ventricles increased by an average (+/- S.E.M.) of 2.4 +/- 0.4% as blood glucose le...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1111/j.1469-445x.1999.tb00085.x

    authors: Puri BK,Lewis HJ,Saeed N,Davey NJ

    更新日期:1999-01-01 00:00:00

  • Long non-coding RNA PRRT3-AS1 silencing inhibits prostate cancer cell proliferation and promotes apoptosis and autophagy.

    abstract:NEW FINDINGS:What is the central question of this study? What is the role of lncRNA PRRT3-AS1 in the regulation of peroxisome proliferator-activated receptor γ (PPARγ) gene-mediated mechanistic target of rapamycin (mTOR) signalling pathway in proliferation, apoptosis and autophagy of prostate cancer cells? What is the ...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/EP088011

    authors: Fan L,Li H,Wang W

    更新日期:2020-05-01 00:00:00

  • Dietary salt-loading attenuates endothelium-dependent relaxation in response to histamine but not to acetylcholine in rat aortic rings.

    abstract::Endothelium-dependent relaxation in response to histamine and ACh has been studied on precontracted aortic rings from control and salt-loaded Sprague-Dawley rats. Both ACh and histamine caused relaxation of the noradrenaline-induced precontraction only in the presence of the endothelium. The relaxation response to ACh...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.1991.sp003475

    authors: Obiefuna PC,Sofola OA,Ebeigbe AB

    更新日期:1991-01-01 00:00:00

  • The role of gut endocrine cells in control of metabolism and appetite.

    abstract::After food is ingested, nutrients pass through the gastrointestinal tract, stimulating the release of a range of peptide hormones. Among their many local, central and peripheral actions, these hormones act to mediate glucose metabolism and satiety. Indeed, it is the modification of gut hormone secretion that is consid...

    journal_title:Experimental physiology

    pub_type: 杂志文章,评审

    doi:10.1113/expphysiol.2014.079764

    authors: Parker HE,Gribble FM,Reimann F

    更新日期:2014-09-01 00:00:00

  • Angiotensin II type 1 (AT(1)) receptor blockade enhances the L-NAME-induced vasoconstriction in rat submandibular gland.

    abstract::The vasoregulatory role of nitric oxide (NO) and angiotensin II type 1 (AT(1)) receptors in the circulation of the submandibular gland (SMG) of rats was studied. The glandular blood flow was determined by means of laser Doppler flowmetry and rubidium isotope technique. The data obtained by these two methods correlated...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/eph8702330

    authors: Vág J,Kerémi B,Hably C,Bartha J,Fazekas A

    更新日期:2002-05-01 00:00:00

  • A pilot study to investigate the associations of urinary concentrations of NO, ATP and derivatives with overactive bladder symptom severity.

    abstract:NEW FINDINGS:What is the central question of this study? Are the urinary concentrations of NO and ATP, and their metabolites, associated with the severity of symptoms of overactive bladder? What is the main finding and its importance? The urinary ratios of [ATP/NO], [ADP/NO] and a combination of these, [ATP/Cr*ADP/Cr]/...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/EP088450

    authors: Firouzmand S,Young JS

    更新日期:2020-06-01 00:00:00

  • Effects of short-term heat acclimation on whole-body heat exchange and local nitric oxide synthase- and cyclooxygenase-dependent heat loss responses in exercising older men.

    abstract:NEW FINDINGS:What is the central question of this study? Does short-term heat acclimation enhance whole-body evaporative heat loss and augment nitric oxide synthase (NOS)-dependent cutaneous vasodilatation and NOS- and cyclooxygenase (COX)-dependent sweating, in exercising older men? What is the main finding and its im...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/EP089025

    authors: Fujii N,McGarr GW,Notley SR,Boulay P,Sigal RJ,Amano T,Nishiyasu T,Poirier MP,Kenny GP

    更新日期:2020-12-21 00:00:00

  • Intracellular pH regulation in chicken enterocytes: the importance of extracellular pH.

    abstract::The present work reports the effect of pHo on pHi and Na(+)-H+ exchanger activity. Intracellular pH tended to follow pHo, but the proton distribution across the cell membrane is not at electrochemical equilibrium. Removal of external Na+ acidified the cells by both reversing the direction of the Na(+)-H+ exchanger and...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.1995.sp003897

    authors: Peral MJ,Calonge ML,Ilundáin AA

    更新日期:1995-11-01 00:00:00

  • Is rate-pressure product of any use in the isolated rat heart? Assessing cardiac 'effort' and oxygen consumption in the Langendorff-perfused heart.

    abstract:NEW FINDINGS:What is the central question of this study? Rate-pressure product (RPP) is commonly used as an index of cardiac 'effort'. In canine and human hearts (which have a positive force-frequency relationship), RPP is linearly correlated with oxygen consumption and has therefore been widely adopted as a species-in...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/EP085380

    authors: Aksentijević D,Lewis HR,Shattock MJ

    更新日期:2016-02-01 00:00:00

  • Differential vasomotor effects of insulin on gastrocnemius and soleus feed arteries in the OLETF rat model: role of endothelin-1.

    abstract::The vascular actions of insulin are complex, because it can stimulate both nitric oxide-mediated dilatation and endothelin (ET)-1-mediated constriction. We examined vasoreactivity to insulin in isolated feed arteries of the gastrocnemius (GFA) and soleus muscles (SFA) of 32-week-old Long-Evans Tokushima Otsuka (LETO) ...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.2013.074047

    authors: Jenkins NT,Padilla J,Martin JS,Crissey JM,Thyfault JP,Rector RS,Laughlin MH

    更新日期:2014-01-01 00:00:00