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Wang M, Wang J, Wang J, Wu Y, Qi X. Elevated ALOX12 in renal tissue predicts progression in diabetic kidney disease. Ren Fail 2024; 46:2313182. [PMID: 38345057 PMCID: PMC10863531 DOI: 10.1080/0886022x.2024.2313182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 01/27/2024] [Indexed: 02/15/2024] Open
Abstract
Diabetic kidney disease (DKD) is one of the major causes of end-stage renal disease and one of the significant complications of diabetes. This study aims to identify the main differentially expressed genes in DKD from transcriptome sequencing results and analyze their diagnostic value. The present study sequenced db/m mouse and db/db mouse to determine the ALOX12 genetic changes related to DKD. After preliminary validation, ALOX12 levels were significantly elevated in the blood of DKD patients, but not during disease progression. Moreover, urine ALOX12 was increased only in macroalbuminuria patients. Therefore, to visualize the diagnostic efficacy of ALOX12 on the onset and progression of renal injury in DKD, we collected kidney tissue from patients for immunohistochemical staining. ALOX12 was increased in the kidneys of patients with DKD and was more elevated in macroalbuminuria patients. Clinical chemical and pathological data analysis indicated a correlation between ALOX12 protein expression and renal tubule injury. Further immunofluorescence double staining showed that ALOX12 was expressed in both proximal tubules and distal tubules. Finally, the diagnostic value of the identified gene in the progression of DKD was assessed using receiver operating characteristic (ROC) curve analysis. The area under the curve (AUC) value for ALOX12 in the diagnosis of DKD entering the macroalbuminuria stage was 0.736, suggesting that ALOX12 has good diagnostic efficacy. During the development of DKD, the expression levels of ALOX12 in renal tubules were significantly increased and can be used as one of the predictors of the progression to macroalbuminuria in patients with DKD.
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Affiliation(s)
- Meixi Wang
- Department of Nephropathy, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jingjing Wang
- Department of Nephropathy, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jinni Wang
- Department of Nephropathy, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yonggui Wu
- Department of Nephropathy, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Center for Scientific Research of Anhui Medical University, Hefei, China
| | - Xiangming Qi
- Department of Nephropathy, The First Affiliated Hospital of Anhui Medical University, Hefei, China
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Bautista-Pérez R, del Valle-Mondragón L, Cano-Martínez A, Pérez-Méndez O, Escalante B, Franco M. Involvement of neutral sphingomyelinase in the angiotensin II signaling pathway. Am J Physiol Renal Physiol 2015; 308:F1178-87. [DOI: 10.1152/ajprenal.00079.2014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 10/27/2014] [Indexed: 01/05/2023] Open
Abstract
The possibility that angiotensin II (ANG II) exerts its effects through the activation of neutral sphingomyelinase (nSMase) has not been tested in kidneys. The results of the present study provide evidence for the activity and expression of nSMase in rat kidneys. In isolated perfused rat kidney, ANG II-induced renal vasoconstriction was inhibited by GW4869, an inhibitor of nSMase. We used nSMase for investigating the signal transduction downstream of ceramide. nSMase constricted the renal vasculature. An inhibitor of ceramidase (CDase), N-oleoylethanolamine (OEA), enhanced either ANG II- or nSMase-induced renal vasoconstriction. To demonstrate the interaction between the nSMase and cytosolic phospholipase A2 (cPLA2) signal transduction pathways, we evaluated the response to nSMase in the presence and absence of inhibitors of arachidonic acid (AA) metabolism: arachidonyl trifluoromethyl ketone (AACOCF3), an inhibitor of cPLA2; 5,8,11,14-eicosatetraynoic acid (ETYA), an inhibitor of all AA pathways; indomethacin, an inhibitor of cyclooxygenase (COX); furegrelate, a thromboxane A2 (TxA2)-synthase inhibitor; and SQ29548 , a TxA2-receptor antagonist. In these experiments, the nSMase-induced renal vasoconstriction decreased. ANG II or nSMase was associated with an increase in the release of thromboxane B2 (TxB2) in the renal perfusate of isolated perfused rat kidney. In addition, the coexpression of the ceramide with cPLA2, was found in the smooth muscle layer of intrarenal vessels. Our results suggest that ANG II stimulates ceramide formation via the activation of nSMase; thus ceramide may indirectly regulate vasoactive processes that modulate the activity of cPLA2 and the release of TxA2.
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Affiliation(s)
- Rocio Bautista-Pérez
- Department of Molecular Biology, Instituto Nacional de Cardiología I. Ch., Mexico City, Mexico
- Department of Nephrology, Instituto Nacional de Cardiología I. Ch., Mexico City, Mexico
| | | | - Agustina Cano-Martínez
- Department of Physiology, Instituto Nacional de Cardiología I. Ch., Mexico City, Mexico; and
| | - Oscar Pérez-Méndez
- Department of Molecular Biology, Instituto Nacional de Cardiología I. Ch., Mexico City, Mexico
| | | | - Martha Franco
- Department of Nephrology, Instituto Nacional de Cardiología I. Ch., Mexico City, Mexico
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Zúñiga-Muñoz AM, Guarner Lans V, Soria-Castro E, Diaz-Diaz E, Torrico-Lavayen R, Tena-Betancourt E, Pérez-Torres I. 17β Estradiol Modulates Perfusion Pressure and Expression of 5-LOX and CYP450 4A in the Isolated Kidney of Metabolic Syndrome Female Rats. Int J Endocrinol 2015; 2015:149408. [PMID: 26491436 PMCID: PMC4600504 DOI: 10.1155/2015/149408] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 05/18/2015] [Accepted: 05/30/2015] [Indexed: 01/05/2023] Open
Abstract
Prevalence of metabolic syndrome and progression of nephropathy depend on sex. We examined a protective effect of estradiol against nephropathy in metabolic syndrome through the modulation of the arachidonic acid metabolism by activating the 5-lipoxygenase and cytochrome p450 4A pathways. 28 female Wistar rats were divided into four groups of seven animals each: control, intact metabolic syndrome, ovariectomized metabolic syndrome, and metabolic syndrome ovariectomized plus estradiol. Blood pressure, body weight, body fat, triglycerides, insulin, HOMA-index, albuminuria, and TNF-α were increased in ovariectomized metabolic syndrome rats (p < 0.001). The perfusion pressure in isolated kidneys of ovariectomized metabolic syndrome rats in presence of 4 μg of arachidonic acid was increased. The inhibitors of the arachidonic acid metabolism Baicalein, Miconazole, and Indomethacin in these rats decreased the perfusion pressure by 57.62%, 99.83%, and 108.5%, respectively and they decreased creatinine clearance and the arachidonic acid percentage. Phospholipase A2 expression in the kidney of ovariectomized metabolic syndrome rats was not modified. 5-lipoxygenase was increased in metabolic syndrome ovariectomized rats while cytochrome p450 4A was decreased. In conclusion, the loss of estradiol increases renal damage while the treatment with estradiol benefits renal function by modulating arachidonic acid metabolism through the 5-lipoxygenase and cytochrome p450 4A pathways.
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Affiliation(s)
- A. M. Zúñiga-Muñoz
- Department of Pathology, Instituto Nacional de Cardiología “Ignacio Chávez”, Juan Badiano No. 1, Sección XVI, 14080 Tlalpan, DF, Mexico
| | - V. Guarner Lans
- Department of Physiology, Instituto Nacional de Cardiología “Ignacio Chávez”, Juan Badiano No. 1, Sección XVI, 14080 Tlalpan, DF, Mexico
| | - E. Soria-Castro
- Department of Pathology, Instituto Nacional de Cardiología “Ignacio Chávez”, Juan Badiano No. 1, Sección XVI, 14080 Tlalpan, DF, Mexico
| | - E. Diaz-Diaz
- Department of Reproduction Biology, Instituto Nacional de Ciencias Médicas y Nutrición “Salvador Zubirán”, Vasco de Quiroga 15, Sección XVI, 14000 Tlalpan, DF, Mexico
| | - R. Torrico-Lavayen
- Department of Pathology, Instituto Nacional de Cardiología “Ignacio Chávez”, Juan Badiano No. 1, Sección XVI, 14080 Tlalpan, DF, Mexico
| | - E. Tena-Betancourt
- Animal Facility Services and Experimental Surgery, Facultad de Medicina Universidad La Salle, Avenue De las Fuentes 17, 14000 Tlalpan, DF, Mexico
| | - I. Pérez-Torres
- Department of Pathology, Instituto Nacional de Cardiología “Ignacio Chávez”, Juan Badiano No. 1, Sección XVI, 14080 Tlalpan, DF, Mexico
- *I. Pérez-Torres:
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Nobe K, Takenouchi Y, Kasono K, Hashimoto T, Honda K. Two Types of Overcontraction Are Involved in Intrarenal Artery Dysfunction in Type II Diabetic Mouse. J Pharmacol Exp Ther 2014; 351:77-86. [DOI: 10.1124/jpet.114.216747] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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Effects of Grape Seed Proanthocyanidin Extracts on Aortic Pulse Wave Velocity in Streptozocin Induced Diabetic Rats. Biosci Biotechnol Biochem 2014; 73:1348-54. [DOI: 10.1271/bbb.90008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Gómez-Pliego R, Gómez-Zamudio J, Velasco-Bejarano B, Ibarra-Barajas M, Villalobos-Molina R. Effect of bis-1,4-dihydropyridine in the kidney of diabetic rats. J Pharmacol Sci 2013; 122:184-92. [PMID: 23823933 DOI: 10.1254/jphs.12248fp] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
The in vivo effectiveness of 4-dihydropyridine (bis-1,4-DHP), a new calcium-channel blocker, as a nephroprotector in isolated perfused kidney was evaluated by determining its effects on parameters associated with renal injury in diabetic rats. Diabetes in male Wistar rats, control, diabetic, control + bis-1,4-DHP, and diabetic + bis-1,4-DHP, was induced by a single administration of STZ (55 mg·kg(-1), i.p.). In the drug-treated groups, treatment with bis-1,4-DHP (10 mg·kg(-1)·day(-1)) started one week before diabetes induction; bis-1,4-DHP was dissolved in DMSO (0.3%) and suspended in drinking water with carboxymethyl cellulose (3%). Parameters evaluated were body weight, blood glucose, albuminuria, proteinuria, creatinine, urea excretion, kidney's weight / body weight ratio, and kidney perfusion pressure in all rat groups at different times of diabetes (2, 4, 6, and 10 weeks). Kidney weight of diabetic rats significantly increased vs. control, control + bis-1,4-DHP, and diabetic + bis-1,4-DHP rats at different times of diabetes. The ratios % kidney weight / 100 g body weight were different between control, control + bis-1,4-DHP, and diabetic + bis-1,4-DHP rats vs. diabetic rats (P < 0.05). Kidney perfusion pressure was decreased by diabetes, while it was partially recovered by bis-1,4-DHP treatment in response to phenylephrine. Bis-1,4-DHP had a tendency to decrease hyperglycemia vs. diabetic rats, even though glycemia was too high as compared with controls, and it ameliorated albuminuria, creatinine, and urea excretion, suggesting a favorable effect on renal haemodynamics. Bis-1,4-DHP, by inhibiting Ca(2+) entrance, induced vasodilation in renal vascular bed and thus may have a nephroprotective effect against diabetes-induced renal dysfunction, but does not have significant impact on hyperglycemia.
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Affiliation(s)
- Raquel Gómez-Pliego
- Biological Sciences and Human Health Section, Department of Biological Sciences, Faculty of Higher Studies Cuautitlan, National Autonomous University of México, México.
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Restrepo B, García M, López C, Martín M, San Román L, Morán A. The Cyclooxygenase and Nitric Oxide Synthesis/Pathways Mediate the Inhibitory Serotonergic Response to the Pressor Effect Elicited by Sympathetic Stimulation in Long-Term Diabetic Pithed Rats. Pharmacology 2012; 90:169-76. [DOI: 10.1159/000341911] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Accepted: 07/16/2012] [Indexed: 12/26/2022]
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d'Emmanuele di Villa Bianca R, Sorrentino R, Coletta C, Mitidieri E, Rossi A, Vellecco V, Pinto A, Cirino G, Sorrentino R. Hydrogen sulfide-induced dual vascular effect involves arachidonic acid cascade in rat mesenteric arterial bed. J Pharmacol Exp Ther 2011; 337:59-64. [PMID: 21228064 DOI: 10.1124/jpet.110.176016] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Hydrogen sulfide (H(2)S), a novel gaseous transmitter, is considered a physiological regulator of vascular homeostasis. Recent evidence suggests H(2)S as an endothelium-hyperpolarizing factor (EDHF) candidate. To address this issue, we evaluated the vascular effect of sodium hydrogen sulfide (NaHS), an H(2)S donor, on the rat mesenteric arterial bed. NaHS concentration-response curve was performed on preconstricted mesenteric arterial bed. To assess the contribution of EDHF, we performed a pharmacologic dissection using indomethacin, N(G)-nitro-l-arginine methyl ester (l-NAME), or apamin and charybdotoxin as cyclooxygenase, nitric-oxide synthase, and calcium-dependent potassium channel inhibitors, respectively. In another set of experiments, we used 4-(4-octadecylphenyl)-4-oxobutenoic acid, baicalein, or proadifen as phospholipase A(2) (PLA(2)), lipoxygenase, and cytochrome P450 inhibitors, respectively. Finally, an immunofluorescence study was performed to support the involvement of PLA(2) in mesenteric artery challenged by NaHS. NaHS promoted a dual vascular effect (i.e., vasoconstriction and vasodilation). l-NAME or baicalein administration affected neither NaHS-mediated vasodilation nor vasoconstriction, whereas apamin and charybdotoxin significantly inhibited NaHS-induced relaxation. Pretreatment with PLA(2) inhibitor abolished both the contracting and the relaxant effect, whereas P450 cytochrome blocker significantly reduced NaHS-mediated relaxation. The immunofluorescence study showed that NaHS caused a migration of cytosolic PLA(2) close to the nucleus, which implicates activation of this enzyme. Our data indicate that H(2)S could activate PLA(2), which in turn releases arachidonic acid leading, initially, to vasoconstriction followed by vasodilation mediated by cytochrome P450-derived metabolites. Because EDHF has been presumed to be a cytochrome P450 derivative of the arachidonic acid, our results suggest that H(2)S acts through EHDF release.
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A novel approach of proteomics to study the mechanism of action of grape seed proanthocyanidin extracts on diabetic retinopathy in rats. Chin Med J (Engl) 2008. [DOI: 10.1097/00029330-200812020-00014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Nobe K, Nezu Y, Tsumita N, Hashimoto T, Honda K. Intra- and extrarenal arteries exhibit different profiles of contractile responses in high glucose conditions. Br J Pharmacol 2008; 155:1204-13. [PMID: 18806819 DOI: 10.1038/bjp.2008.365] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND AND PURPOSE The renal artery (RA) has been extensively investigated for the assessment of renal vascular function/dysfunction; however, few studies have focused on the intrarenal vasculature. EXPERIMENTAL APPROACH We devised a microvascular force measurement system, which allowed us to measure contractions of interlobar arteries (ILA), isolated from within the mouse kidney and prepared without endothelium. KEY RESULTS KCl (50 mM) induced similar force development in the aorta and RA but responses in the ILA were about 50% lower. Treatment of RA with 10 microM phenylephrine (PE), 10 nM U46619 (thromboxane A(2) analogue) or 10 microM prostaglandin F(2 alpha) elicited a response greater than 150% of that induced by KCl. In ILA, 10 nM U46619 elicited a response that was 130% of the KCl-induced response; however, other agonists induced levels similar to that induced by KCl. High glucose conditions (22.2 mM glucose) significantly enhanced responses in RA and ILA to PE or U46619 stimulation. This enhancement was suppressed by rottlerin, a calcium-independent PKC inhibitor, indicating that glucose-dependent, enhanced small vessel contractility in the kidney was linked to the activation of calcium-independent PKC. CONCLUSION AND IMPLICATIONS Extra- and intrarenal arteries exhibit different profiles of agonist-induced contractions. In ILA, only U46619 enhanced small vessel contractility in the kidney, which might lead to renal dysfunction and nephropathy through reduced intrarenal blood flow rate. A model has been established, which will allow the assessment of contractile responses of intrarenal arteries from murine models of renal disease, including type 2 diabetes.
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Affiliation(s)
- K Nobe
- Department of Pharmacology, School of Pharmaceutical Sciences, SHOWA University, Tokyo, Japan.
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Clinical toxicology of citalopram after acute intoxication with the sole drug or in combination with other drugs: overview of 26 cases. Ther Drug Monit 2008; 50:503-9. [PMID: 18520609 DOI: 10.1097/fjc.0b013e3181379ef6] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
There is discussion concerning the cardiac safety of citalopram in an overdose. The aim of this study was to investigate the toxic effects and toxicokinetic parameters of citalopram in an overdose as a single drug and in combination with other drugs. Cases observed between 1997 and 2006 were evaluated. Patient demographics, ingested doses, serum concentrations of citalopram, coingested drugs, and clinical parameters were acquired. Outcomes were observed symptoms of the gastrointestinal tract, respiratory tract, central nervous system, and cardiovascular system. Poisoning Severity Score was used to evaluate severity of every intoxicated patient. Individual toxicokinetic parameter values were calculated. Twenty-nine cases of citalopram overdose were observed; three cases had incomplete data so that 26 cases were evaluable. The ingested amount ranged from 200 to 4960 mg. Blood concentrations ranged from 0.21 to 7.5 mg/L with 20 minutes to 8 hours between suggested time of ingestion and blood sampling. Most frequently reported symptoms were drowsiness (seven cases), tachycardia (15 cases), QTc prolongation (eight cases), decrease of consciousness (eight cases), and seizures (four cases). Median length of hospital stay was 3 days (range, 1-8 days). Of the 26 evaluated cases, two fatalities occurred, one because of a cardiac arrest and one as a result of a respiratory arrest. According to Poisoning Severity Score, severity of intoxication was minor in three patients (11%), moderate in nine patients (35%), and severe in 14 patients (54%). Severity was mainly caused by neurologic and respiratory effects. Elimination half-life was prolonged but did not correlate with the amount of ingestion. Citalopram intoxications seem to proceed more severely than is known for other selective serotonin reuptake inhibitor intoxications, causing drowsiness, coma, and seizures in overdose. Cardiac toxicity is generally mild. Therefore, we recommend seizure precautions and intensive care unit admission with cardiac monitoring for citalopram-intoxicated patients. Because elimination half-life is prolonged, normal pharmacokinetics do not apply.
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Li BY, Cheng M, Gao HQ, Ma YB, Xu L, Li XH, Li XL, You BA. Back-regulation of six oxidative stress proteins with grape seed proanthocyanidin extracts in rat diabetic nephropathy. J Cell Biochem 2008; 104:668-79. [DOI: 10.1002/jcb.21658] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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