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Bai L, Sun S, Sun Y, Wang F, Nishiyama A. N-type calcium channel and renal injury. Int Urol Nephrol 2022; 54:2871-2879. [PMID: 35416563 PMCID: PMC9534814 DOI: 10.1007/s11255-022-03183-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 03/15/2022] [Indexed: 11/26/2022]
Abstract
Accumulating evidences indicated that voltage-gated calcium channels (VDCC), including L-, T-, N-, and P/Q-type, are present in kidney and contribute to renal injury during various chronic diseases trough different mechanisms. As a voltage-gated calcium channel, N-type calcium channel was firstly been founded predominately distributed on nerve endings which control neurotransmitter releases. Since sympathetic nerve is distributed along renal afferent and efferent arterioles, N-type calcium channel blockade on sympathetic nerve terminals would bring renal dynamic improvement by dilating both arterioles and reducing glomerular pressure. In addition, large body of scientific research indicated that neurotransmitters, such as norepinephrine, releases by activating N-type calcium channel can trigger inflammatory and fibrotic signaling pathways in kidney. Interestingly, we recently demonstrated that N-type calcium channel is also expressed on podocytes and may directly contribute to podocyte injury in denervated animal models. In this paper, we will summarize our current knowledge regarding renal N-type calcium channels, and discuss how they might contribute to the river that terminates in renal injury.
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Affiliation(s)
- Lei Bai
- Department of Endocrinology, The Fourth Hospital of Hebei Medical University, No. 12 Jiankang Road, Shijiazhuang, 050011, Hebei, People's Republic of China.
| | - Shichao Sun
- Department of Neurology, The Second Hospital of Hebei Medical University, No. 215 Heping Road, Shijiazhuang, 050000, Hebei, People's Republic of China
| | - Yao Sun
- Department of Medical Image, The Fourth Hospital of Hebei Medical University, No. 12 Jiankang Road, Shijiazhuang, 050011, Hebei, People's Republic of China
| | - Fujun Wang
- Department of Endocrinology, The Fourth Hospital of Hebei Medical University, No. 12 Jiankang Road, Shijiazhuang, 050011, Hebei, People's Republic of China
| | - Akira Nishiyama
- Department of Pharmacology, Kagawa University Medical School, Kagawa, 761-0793, Japan
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Effects of L-/N-Type Calcium Channel Blockers on Angiotensin II-Renin Feedback in Hypertensive Patients. Int J Hypertens 2021; 2020:6653851. [PMID: 33489354 PMCID: PMC7803135 DOI: 10.1155/2020/6653851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 12/10/2020] [Indexed: 11/17/2022] Open
Abstract
Objectives Cilnidipine, an L-/N-type calcium channel blocker (CCB), has unique organ-protective properties due to suppression of hyperactivity in the sympathetic nervous system and renin-angiotensin system (RAS). In this study, we hypothesized that cilnidipine might exert a renoprotective effect by suppressing the RAS. Methods A total of 25 hypertensive patients receiving a RAS inhibitor were randomly assigned to a cilnidipine (n = 12) or amlodipine (n = 13) group. The effects of cilnidipine on proteinuria and angiotensin II-renin feedback were assessed. Results After 6 months of treatment, both systolic and diastolic blood pressures were significantly reduced to a similar extent in both groups. The urine albumin-to-creatinine ratio was significantly lower in the cilnidipine group (p < 0.05) than in the amlodipine group. Amlodipine increased plasma angiotensin I and angiotensin II levels (p < 0.05), whereas cilnidipine did not. Interestingly, the cilnidipine group had a higher ratio of angiotensin-(1-7) (Ang-(1-7)) to angiotensin II in plasma than the amlodipine group (p < 0.05). Conclusions The L-/N-type CCB cilnidipine, but not amlodipine, decreased urinary albumin excretion in hypertensive patients. Cilnidipine also increased the ratio of Ang-(1-7) to angiotensin II in plasma, which might be one factor underlying its beneficial effects.
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Grassi G. Sympathomodulatory Effects of Antihypertensive Drug Treatment. Am J Hypertens 2016; 29:665-75. [PMID: 26888777 DOI: 10.1093/ajh/hpw012] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 01/20/2016] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND An activation of sympathetic neural influences to the heart and peripheral circulation has been shown to represent a hallmark of the essential hypertensive state, adrenergic neural factors participating together with other variables at the development and progression of the high blood pressure state as well as of the hypertension-related target organ damage. This represents the rationale for employing in hypertension treatment drugs which combine the blood pressure-lowering properties with the modulatory effects on the sympathetic neural function. METHODS AND RESULTS Several studies published during the past 40 years have investigated the impact of antihypertensive drugs on the sympathetic target as assessed by indirect and direct approaches. In the present paper, the effects of different monotherapies or combination drug treatment used in hypertension to lower elevated blood pressure values on various adrenergic markers will be examined. This will be followed by a discussion of the (i) hemodynamic and nonhemodynamic consequences of employing antihypertensive drugs with sympathomodulatory or sympathoexcitatory properties and (ii) mechanisms potentially responsible for the adrenergic responses to a given antihypertensive drug. The final part of this review will address the questions still open related to the impact of antihypertensive drug treatment on sympathetic function. Two questions in particular will be examined, i.e., whether antihypertensive drugs with sympathomodulatory properties may be capable to fully restore a "normal" adrenergic drive and how far sympathetic activity should be reduced in hypertensive patients. CONCLUSION Future investigations aimed at answering these questions will be needed in order to improve cardiovascular protection in treated hypertensive patients.
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Affiliation(s)
- Guido Grassi
- Clinica Medica, Dipartimento di Medicina e Chirurgia, Universita` Milano-Bicocca, Milano, Italy; IRCCS Multimedica, Sesto San Giovanni, Milano, Italy.
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Verma M, Bali A, Singh N, Jaggi AS. Investigating the role of nisoldipine in foot-shock-induced post-traumatic stress disorder in mice. Fundam Clin Pharmacol 2016; 30:128-36. [DOI: 10.1111/fcp.12174] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 11/09/2015] [Accepted: 12/08/2015] [Indexed: 11/29/2022]
Affiliation(s)
- Meenu Verma
- Department of Pharmaceutical Sciences and Drug Research; Punjabi University; Patiala 147002 Punjab India
| | - Anjana Bali
- Department of Pharmaceutical Sciences and Drug Research; Punjabi University; Patiala 147002 Punjab India
| | - Nirmal Singh
- Department of Pharmaceutical Sciences and Drug Research; Punjabi University; Patiala 147002 Punjab India
| | - Amteshwar S. Jaggi
- Department of Pharmaceutical Sciences and Drug Research; Punjabi University; Patiala 147002 Punjab India
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Aritomi S, Harada E, Sugino K, Nishimura M, Nakamura T, Takahara A. Comparison of the cardioprotective and renoprotective effects of the L/N-type calcium channel blocker, cilnidipine, in adriamycin-treated spontaneously-hypertensive rats. Clin Exp Pharmacol Physiol 2015; 42:344-52. [PMID: 25582553 PMCID: PMC4409849 DOI: 10.1111/1440-1681.12360] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 12/31/2014] [Accepted: 01/04/2015] [Indexed: 01/03/2023]
Abstract
Cilnidipine is an L/N-type calcium channel blocker (CCB). The effects of cilnidipine on N-type channels give it unique organ-protective properties via the suppression of hyperactivity in the sympathetic nervous system (SNS) and renin-angiotensin-aldosterone system (RAAS). In the present study, we compared the effects of cilnidipine and amlodipine (an L-type CCB) on cardiac and renal functions in spontaneously-hypertensive rats injected with adriamycin (ADR). After the weekly administration of ADR for 3 weeks, spontaneously-hypertensive rats were orally administered cilnidipine (20 mg/kg per day), amlodipine (3 mg/kg per day), or vehicle once daily for 4 weeks. A control group received saline rather than ADR, followed by vehicle for 4 weeks. Cilnidipine and amlodipine produced similar reductions in blood pressure after 4 weeks. Cilnidipine ameliorated ADR-induced heart and kidney damage, whereas amlodipine slightly improved cardiac echocardiographic parameters, but did not protect against ADR-induced renal damage. Cilnidipine (but not amlodipine) suppressed the reflex SNS and RAAS hyperactivity caused by their antihypertensive effects. Furthermore, cilnidipine and amlodipine treatment decreased the urinary levels of adrenocortical hormones. The protective effects of cilnidipine against ADR-induced renal and cardiac dysfunction might be associated with its blockade of N-type calcium channels, in addition to its pleiotropic actions, which include the inhibition of the RAAS.
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Affiliation(s)
- Shizuka Aritomi
- Research Institute, Ajinomoto Pharmaceuticals, Kanagawa, Japan; Department of Pharmacology and Therapeutics, Toho University, Chiba, Japan
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Frolov RV, Weckström M. Harnessing the Flow of Excitation: TRP, Voltage-Gated Na(+), and Voltage-Gated Ca(2+) Channels in Contemporary Medicine. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2015; 103:25-95. [PMID: 26920687 DOI: 10.1016/bs.apcsb.2015.11.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cellular signaling in both excitable and nonexcitable cells involves several classes of ion channels. Some of them are of minor importance, with very specialized roles in physiology, but here we concentrate on three major channel classes: TRP (transient receptor potential channels), voltage-gated sodium channels (Nav), and voltage-gated calcium channels (Cav). Here, we first propose a conceptual framework binding together all three classes of ion channels, a "flow-of-excitation model" that takes into account the inputs mediated by TRP and other similar channels, the outputs invariably provided by Cav channels, and the regenerative transmission of signals in the neural networks, for which Nav channels are responsible. We use this framework to examine the function, structure, and pharmacology of these channel classes both at cellular and also at whole-body physiological level. Building on that basis we go through the pathologies arising from the direct or indirect malfunction of the channels, utilizing ion channel defects, the channelopathies. The pharmacological interventions affecting these channels are numerous. Part of those are well-established treatments, like treatment of hypertension or some forms of epilepsy, but many other are deeply problematic due to poor drug specificity, ion channel diversity, and widespread expression of the channels in tissues other than those actually targeted.
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Affiliation(s)
- Roman V Frolov
- Division of Biophysics, Department of Physics, University of Oulu, Oulun Yliopisto, Finland.
| | - Matti Weckström
- Division of Biophysics, Department of Physics, University of Oulu, Oulun Yliopisto, Finland
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Nagasawa K, Takahashi K, Matsuura N, Takatsu M, Hattori T, Watanabe S, Harada E, Niinuma K, Murohara T, Nagata K. Comparative effects of valsartan in combination with cilnidipine or amlodipine on cardiac remodeling and diastolic dysfunction in Dahl salt-sensitive rats. Hypertens Res 2014; 38:39-47. [DOI: 10.1038/hr.2014.136] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 07/30/2014] [Accepted: 08/12/2014] [Indexed: 11/09/2022]
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Mori Y, Aritomi S, Niinuma K, Nakamura T, Matsuura K, Yokoyama J, Utsunomiya K. Additive effects of cilnidipine, an L-/N-type calcium channel blocker, and an angiotensin II receptor blocker on reducing cardiorenal damage in Otsuka Long-Evans Tokushima Fatty rats with type 2 diabetes mellitus. Drug Des Devel Ther 2014; 8:799-810. [PMID: 24970998 PMCID: PMC4069052 DOI: 10.2147/dddt.s47441] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Cilnidipine (Cil), which is an L-/N-type calcium channel blocker (CCB), has been known to provide renal protection by decreasing the activity of the sympathetic nervous system (SNS) and the renin–angiotensin system. In this study, we compared the effects of the combination of Cil and amlodipine (Aml), which is an L-type CCB, with an angiotensin (Ang) II receptor blocker on diabetic cardiorenal damage in spontaneously type 2 diabetic rats. Seventeen-week-old Otsuka Long-Evans Tokushima Fatty rats were randomly assigned to receive Cil, Aml, valsartan (Val), Cil + Val, Aml + Val, or a vehicle (eight rats per group) for 22 weeks. Antihypertensive potencies were nearly equal among the CCB monotherapy groups and the combination therapy groups. The lowering of blood pressure by either treatment did not significantly affect the glycemic variables. However, exacerbations of renal and heart failure were significantly suppressed in rats administered Cil or Val, and additional suppression was observed in those administered Cil + Val. Although Val increased the renin–Ang system, Aml + Val treatment resulted in additional increases in these parameters, while Cil + Val did not show such effects. Furthermore, Cil increased the ratio of Ang-(1–7) to Ang-I, despite the fact that Val and Aml + Val decreased the Ang-(1–7) levels. These actions of Cil + Val might be due to their synergistic inhibitory effect on the activity of the SNS, and on aldosterone secretion through N-type calcium channel antagonism and Ang II receptor type 1 antagonism. Thus, Cil may inhibit the progression of cardiorenal disease in type 2 diabetes patients by acting as an N-type CCB and inhibiting the aldosterone secretion and SNS activation when these drugs were administered in combination with an Ang II receptor blocker.
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Affiliation(s)
- Yutaka Mori
- Division of Diabetes and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Minato-ku, Japan ; Department of Clinical Research, National Hospital Organization, Utsunomiya National Hospital, Utsunomiya, Japan
| | - Shizuka Aritomi
- Research Center, Ajinomoto Pharmaceuticals Co, Ltd, Kanagawa, Japan
| | - Kazumi Niinuma
- Research Center, Ajinomoto Pharmaceuticals Co, Ltd, Kanagawa, Japan
| | - Tarou Nakamura
- Research Center, Ajinomoto Pharmaceuticals Co, Ltd, Kanagawa, Japan
| | - Kenichi Matsuura
- Division of Diabetes and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Minato-ku, Japan
| | - Junichi Yokoyama
- Division of Diabetes and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Minato-ku, Japan
| | - Kazunori Utsunomiya
- Division of Diabetes and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Minato-ku, Japan
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Additive effects of cilnidipine and angiotensin II receptor blocker in preventing the progression of diabetic nephropathy in diabetic spontaneously hypertensive rats. Clin Exp Nephrol 2012; 17:41-50. [DOI: 10.1007/s10157-012-0677-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Accepted: 07/25/2012] [Indexed: 10/28/2022]
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Aritomi S, Niinuma K, Ogawa T, Konda T, Nitta K. Effects of an N-type calcium antagonist on angiotensin II-renin feedback. Am J Nephrol 2011; 33:168-75. [PMID: 21293118 DOI: 10.1159/000323969] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2010] [Accepted: 01/01/2011] [Indexed: 11/19/2022]
Abstract
BACKGROUND Interrupting the renin-angiotensin system (RAS) with an angiotensin II receptor blocker (ARB) has been found to induce RAS overactivation. In this study, we investigated the effect of 2 calcium channel blockers (CCBs), cilnidipine (L-/N-type CCB) and amlodipine (L-type CCB), on the RAS activation induced by an ARB in a strain of spontaneously hypertensive rats (SHR/Izm, 10 weeks of age). METHODS Rats intravenously catheterized for blood collection were randomly divided into groups that were administered the vehicle, the ARB valsartan or valsartan combined with one of the 2 CCBs. Their blood and kidneys were collected 270 min after administration. RESULTS Valsartan increased the plasma angiotensin II (Ang II) level in a dose-dependent manner. Cilnidipine suppressed the increase in plasma renin activity and plasma Ang II levels induced by valsartan, but amlodipine did not. Combined administration of cilnidipine, but not amlodipine, and valsartan significantly reduced the noradrenaline content in the renal cortex. CONCLUSIONS The results of this study suggest that the suppressive effect of cilnidipine on the valsartan-induced increase in RAS activity can be partly explained by its sympatholytic action mediated by N-type calcium channel blockade, and that combined administration of cilnidipine and valsartan might provide a synergistic therapeutic effect.
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Affiliation(s)
- Shizuka Aritomi
- Pharmaceutical Research Laboratories, Ajinomoto Co., Inc., Kawasaki, Japan
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The N-type and L-type calcium channel blocker cilnidipine suppresses renal injury in Dahl rats fed a high-salt diet. Heart Vessels 2010; 25:549-55. [PMID: 20922532 DOI: 10.1007/s00380-010-0005-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2009] [Accepted: 12/01/2009] [Indexed: 10/19/2022]
Abstract
The aims of the present study were to compare the effects of cilnidipine [L-type/N-type calcium channel blocker (CCB)] and amlodipine (L-type CCB) alone or in combination with the angiotensin II receptor blocker (ARB), valsartan, on blood pressure (BP), kidney function in Dahl salt-sensitive (DS) rats. DS rats fed a high-salt diet were divided into six groups; control (n = 13), two CCB (cilnidipine or amlodipine) groups at 1 mg/kg/day (n = 10), ARB (valsartan) at 10 mg/kg/day (n = 12), cilnidipine + valsartan (CV, n = 12), and amlodipine + valsartan (AV, n = 12). BPs were lower in the combination therapy groups than in those given either drug alone, but only CV inhibited the increase in urinary albumin excretion (UAE) and lowered the glomerular sclerosis score. In addition, AV elevated plasma renin activity and the angiotensin II concentration, and thus failed to inhibit increases in UAE and to lower glomerular sclerosis score. In conclusion, combination therapy with CCB and ARB decreases BP more effectively than either drug alone. When used in combination with valsartan, cilnidipine is more effective than amlodipine for preventing kidney injury.
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Fan L, Yang Q, Xiao XQ, Grove KL, Huang Y, Chen ZW, Furnary A, He GW. Dual actions of cilnidipine in human internal thoracic artery: inhibition of calcium channels and enhancement of endothelial nitric oxide synthase. J Thorac Cardiovasc Surg 2010; 141:1063-9. [PMID: 20599230 DOI: 10.1016/j.jtcvs.2010.01.048] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2009] [Revised: 12/11/2009] [Accepted: 01/15/2010] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Cilnidipine is a novel, long-action L/N-type dihydropyridine calcium channel blocker that has recently been used for antihypertensive therapy. We investigated the vasorelaxation effect of cilnidipine with regard to its calcium channel blockage and nitric oxide-cyclic guanosine monophosphate-dependent mechanism in human internal thoracic artery. METHODS Fresh human internal thoracic arteries taken from discarded tissues of patients undergoing coronary artery bypass surgery were studied. Concentration-relaxation curves for cilnidipine in comparison with nifedipine were studied. The expression level of endothelial nitric oxide synthase mRNA was assayed by quantitative real-time polymerase chain reaction, and the phosphorylation of endothelial nitric oxide synthase at Ser(1177) was determined by Western blotting analysis. RESULTS Cilnidipine and nifedipine caused nearly full relaxation in potassium-precontracted internal thoracic artery. Pretreatment with cilnidipine at the clinical plasma concentration significantly depressed the maximal contraction. Endothelium denudation (47.7% ± 7.0%, P < .05) and inhibition of endothelial nitric oxide synthase (48.6% ± 6.1%, P < .05) or guanylate cyclase (41.6% ± 3.8%, P < .01) significantly reduced the cilnidipine-induced endothelium-dependent relaxation (73.9% ± 6.4%). Cilnidipine increased the expression of endothelial nitric oxide synthase mRNA by 42.4% (P < .05) and enhanced phosphorylation level of endothelial nitric oxide synthase at Ser(1177) by 37.0% (P < .05). CONCLUSIONS The new generation of calcium channel antagonist cilnidipine relaxes human arteries through calcium channel antagonism and increases production of nitric oxide by enhancement of endothelial nitric oxide synthase. The dual mechanisms of cilnidipine in human arteries demonstrated in this study may prove particularly important in vasorelaxing therapy in cardiovascular diseases.
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Affiliation(s)
- Li Fan
- Cardiovascular Research, Starr Academic Center, Providence Heart and Vascular Institute, Department of Surgery, Oregon Health and Science University, Portland, Ore, USA
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Omae K, Ogawa T, Nitta K. Influence of T-calcium channel blocker treatment on deterioration of renal function in chronic kidney disease. Heart Vessels 2009; 24:301-7. [PMID: 19626404 DOI: 10.1007/s00380-008-1125-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2008] [Accepted: 10/24/2008] [Indexed: 01/13/2023]
Abstract
Some calcium channel blockers (CCBs) have renoprotective effects. Our aim was to compare the effects of different subclasses of CCBs on the deterioration of renal function in chronic kidney disease (CKD). This is a prospective, observational cohort study in a single center. The subjects were 107 nondiabetic CKD patients. The rate of deterioration of estimated glomerular filtration rate (DeltaeGFR) was calculated by [last visit eGFR - baseline eGFR/follow-up duration]. Multivariate analysis was performed using the change in urinary protein (DeltaUP) and DeltaeGFR during follow-up as response variables. CCB subclasses were L-type in 76 patients, T- and L-type in 28 patients, and nondihydropyridines in 6 patients. Multiregression analysis indicated that higher baseline proteinuria (UP) and the use of angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin II receptor blockers were associated with the decrease of UP, while the use of L-type CCBs, prednisolone, and probucol was associated with the increase of UP. The use of T- and L-type CCBs, ACEIs and diuretics was associated with a good outcome in terms of DeltaeGFR, whereas chronic glomerulonephritis, polycystic kidney disease, and higher baseline eGFR and UP were associated with a poor outcome. It is suggested that the use of T- and L-type CCB among other subclasses may improve the outcome of patients with nondiabetic CKD in terms of renal function.
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Affiliation(s)
- Kiyotsugu Omae
- Internal Medicine Department, Yoshikawa Hospital, Tokyo, [corrected] Japan
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