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Conte C, Antonelli G, Melica ME, Tarocchi M, Romagnani P, Peired AJ. Role of Sex Hormones in Prevalent Kidney Diseases. Int J Mol Sci 2023; 24:ijms24098244. [PMID: 37175947 PMCID: PMC10179191 DOI: 10.3390/ijms24098244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/29/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023] Open
Abstract
Chronic kidney disease (CKD) is a constantly growing global health burden, with more than 840 million people affected worldwide. CKD presents sex disparities in the pathophysiology of the disease, as well as in the epidemiology, clinical manifestations, and disease progression. Overall, while CKD is more frequent in females, males have a higher risk to progress to end-stage kidney disease. In recent years, numerous studies have highlighted the role of sex hormones in the health and diseases of several organs, including the kidney. In this review, we present a clinical overview of the sex-differences in CKD and a selection of prominent kidney diseases causing CKD: lupus nephritis, diabetic kidney disease, IgA nephropathy, and autosomal dominant polycystic kidney disease. We report clinical and experimental findings on the role of sex hormones in the development of the disease and its progression to end-stage kidney disease.
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Affiliation(s)
- Carolina Conte
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50134 Florence, Italy
- Nephrology and Dialysis Unit, Meyer Children's Hospital IRCCS, 50139 Florence, Italy
| | - Giulia Antonelli
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50134 Florence, Italy
- Nephrology and Dialysis Unit, Meyer Children's Hospital IRCCS, 50139 Florence, Italy
| | - Maria Elena Melica
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50134 Florence, Italy
| | - Mirko Tarocchi
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50134 Florence, Italy
| | - Paola Romagnani
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50134 Florence, Italy
- Nephrology and Dialysis Unit, Meyer Children's Hospital IRCCS, 50139 Florence, Italy
| | - Anna Julie Peired
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50134 Florence, Italy
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Phengpol N, Thongnak L, Lungkaphin A. The programming of kidney injury in offspring affected by maternal overweight and obesity: role of lipid accumulation, inflammation, oxidative stress, and fibrosis in the kidneys of offspring. J Physiol Biochem 2023; 79:1-17. [PMID: 36264422 DOI: 10.1007/s13105-022-00927-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 10/05/2022] [Indexed: 11/29/2022]
Abstract
Maternal overweight and obesity are considered important factors affecting fetal development with many potential consequences for offspring after delivery, including the increased risk of obesity and diabetes mellitus. Maternal obesity promotes adiposity in the offspring by increasing fat deposition and expansion in the body of the offspring. The expansion of adipose tissue changes adipokine levels, including a decrease in adiponectin and an increase in leptin. In addition to changes in adipokine levels, there are also increases in pro-inflammatory cytokines, pro-fibrotic cytokines, and reactive oxygen species, leading to oxidative stress in the offspring. These contribute to the promotion of insulin resistance in offspring, which is associated with kidney injury. Interestingly, maternal obesity can also promote renal lipid accumulation, which could activate inflammatory processes and promote renal oxidative stress and renal fibrosis. These alterations in the kidneys of the offspring imply that a mother being overweight/obese can program the development of kidney disease in offspring. This review will discuss the effects of a mother being overweight or obese on their offspring and the consequences with regard to the kidneys of their offspring. With a focus on the molecular mechanisms, including renal inflammation, renal oxidative stress, renal fibrosis, and renal lipid metabolism in offspring born to overweight and obese mothers, the causative mechanisms and perspective of these conditions will be included.
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Affiliation(s)
- Nichakorn Phengpol
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Laongdao Thongnak
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Anusorn Lungkaphin
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand. .,Functional Food Research Center for Well-Being, Chiang Mai University, Chiang Mai, Thailand. .,Functional Foods for Health and Disease, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand. .,Center for Research and Development of Natural Products for Health, Chiang Mai University, Chiang Mai, Thailand.
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Giandalia A, Giuffrida AE, Gembillo G, Cucinotta D, Squadrito G, Santoro D, Russo GT. Gender Differences in Diabetic Kidney Disease: Focus on Hormonal, Genetic and Clinical Factors. Int J Mol Sci 2021; 22:5808. [PMID: 34071671 PMCID: PMC8198374 DOI: 10.3390/ijms22115808] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/21/2021] [Accepted: 05/25/2021] [Indexed: 02/07/2023] Open
Abstract
Diabetic kidney disease (DKD) is one of the most serious complications of both type 1 (T1DM) and type 2 diabetes mellitus (T2DM). Current guidelines recommend a personalized approach in order to reduce the burden of DM and its complications. Recognizing sex and gender- differences in medicine is considered one of the first steps toward personalized medicine, but the gender issue in DM has been scarcely explored so far. Gender differences have been reported in the incidence and the prevalence of DKD, in its phenotypes and clinical manifestations, as well as in several risk factors, with a different impact in the two genders. Hormonal factors, especially estrogen loss, play a significant role in explaining these differences. Additionally, the impact of sex chromosomes as well as the influence of gene-sex interactions with several susceptibility genes for DKD have been investigated. In spite of the increasing evidence that sex and gender should be included in the evaluation of DKD, several open issues remain uncovered, including the potentially different effects of newly recommended drugs, such as SGLT2i and GLP1Ras. This narrative review explored current evidence on sex/gender differences in DKD, taking into account hormonal, genetic and clinical factors.
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Affiliation(s)
- Annalisa Giandalia
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (A.G.); (D.C.); (G.S.)
| | - Alfio Edoardo Giuffrida
- Unit of Nephrology and Dialysis, Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (A.E.G.); (G.G.); (D.S.)
| | - Guido Gembillo
- Unit of Nephrology and Dialysis, Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (A.E.G.); (G.G.); (D.S.)
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences, University of Messina, 98125 Messina, Italy
| | - Domenico Cucinotta
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (A.G.); (D.C.); (G.S.)
| | - Giovanni Squadrito
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (A.G.); (D.C.); (G.S.)
| | - Domenico Santoro
- Unit of Nephrology and Dialysis, Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (A.E.G.); (G.G.); (D.S.)
| | - Giuseppina T. Russo
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (A.G.); (D.C.); (G.S.)
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Darvishzadeh Mahani F, Khaksari M, Raji-Amirhasani A. Renoprotective effects of estrogen on acute kidney injury: the role of SIRT1. Int Urol Nephrol 2021; 53:2299-2310. [PMID: 33458788 DOI: 10.1007/s11255-020-02761-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 12/15/2020] [Indexed: 01/23/2023]
Abstract
Acute kidney injury (AKI) is a common syndrome associated with high morbidity and mortality, despite progress in medical care. Many studies have shown that there are sex differences and different role of sex hormones particularly estrogens in kidney injury. In this regard, the incidence and rate of progression of kidney diseases are higher in men compared with women. These observations suggest that female sex hormone may be renoprotective. Silent information regulator 2 homolog 1 (SIRT1) is a histone deacetylase, which is implicated in multiple biologic processes in several organisms. In the kidneys, SIRT1 inhibits renal cell apoptosis, inflammation, and fibrosis. Studies have reported a link between SIRT1 and estrogen. In addition, SIRT1 regulates ERα expression and inhibition of SIRT1 activity suppresses ERα expression. This effect leads to inhibition of estrogen-responsive gene expression. In this text, we review the role of SIRT1 in mediating the protective effects of estrogen in the onset and progression of AKI.
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Affiliation(s)
- Fatemeh Darvishzadeh Mahani
- Physiology Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Khaksari
- Endocrinology and Metabolism Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran.
| | - Alireza Raji-Amirhasani
- Endocrinology and Metabolism Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
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Tingskov SJ, Mutsaers HAM, Nørregaard R. Estrogen regulates aquaporin-2 expression in the kidney. VITAMINS AND HORMONES 2019; 112:243-264. [PMID: 32061343 DOI: 10.1016/bs.vh.2019.08.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Estrogens are primarily identified as sex hormones that, for a long time, have been known as important regulators of female reproductive physiology. However, our understanding of the role of estrogens has changed over the past years. It is now well accepted that estrogens are also involved in other physiological and pathological processes in both genders. This is due to the fact that estrogen can act both local as well as on a systemic level. Next to its role in reproductive physiology, there is accumulating evidence that estrogen influences multiple systems involved in water homeostasis. This chapter will delineate the regulatory effects of estrogen on the water channel aquaporin-2 (AQP2) found in the renal collecting duct. We will first provide an introduction to estrogen, the estrogen receptors and their role in renal physiology as well as describe the effect of selective estrogen receptor modulators (SERMs) on the kidney. Subsequently, we will focus on how estrogen and SERMs influence water balance and regulate AQP2 expression in principal cells of the collecting duct. Finally, we will describe how estrogen regulates AQP2 functionality in other organ systems.
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Affiliation(s)
| | | | - Rikke Nørregaard
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.
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Argeri R, Nishi EE, Volpini RA, Palma BD, Tufik S, Gomes GN. Sleep restriction during pregnancy and its effects on blood pressure and renal function among female offspring. Physiol Rep 2016; 4:4/16/e12888. [PMID: 27796270 PMCID: PMC5002907 DOI: 10.14814/phy2.12888] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 07/11/2016] [Indexed: 12/15/2022] Open
Abstract
The influence of sleep restriction (SR) during pregnancy on blood pressure and renal function among female adult offspring was investigated. Pregnant Wistar rats were distributed into control and SR groups. The SR was performed between the 14th and 20th days of pregnancy (multiple platforms method for 20 h/day). At 2 months of age, half of the offspring from both groups were subjected to an ovariectomy (ovx), and the other half underwent sham surgery. The groups were as follows: control sham (Csham), control ovx (Covx), SR sham (SRsham), and SR ovx (SRovx). Renal function markers and systolic blood pressure (BPi, indirect method) were evaluated at 4, 6, and 8 months. Subsequently, the rats were euthanized, kidneys were removed, and processed for morphological analyses of glomerular area (GA), number of glomeruli per mm3 (NG), and kidney mass (KM). Increased BPi was observed in the Covx, SRsham, and SRovx groups compared to Csham at all ages. Increased plasma creatinine concentration and decreased creatinine clearance were observed in the SRsham and SRovx groups compared to the Csham and Covx groups. The SRovx group showed higher BPi and reduced creatinine clearance compared to all other groups. The SRovx group showed reduced values of GA and KM, as well as increased NG, macrophage infiltration, collagen deposit, and ACE1 expression at the renal cortex. Therefore, SR during pregnancy might be an additional risk factor for developing renal dysfunction and increasing BP in female adult offspring. The absence of female hormones exacerbates the changes caused by SR.
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Affiliation(s)
- Rogério Argeri
- Department of Physiology, Escola Paulista de Medicina - UNIFESP, São Paulo, Brazil
| | - Erika E Nishi
- Department of Physiology, Escola Paulista de Medicina - UNIFESP, São Paulo, Brazil
| | - Rildo A Volpini
- Department of Psychobiology, Escola Paulista de Medicina - UNIFESP, São Paulo, Brazil
| | - Beatriz D Palma
- Basic Research Laboratory - LIM12, Nephrology - Faculty of Medicine, USP, São Paulo, São Paulo, Brazil.,Centro Universitário São Camilo, São Paulo, Brazil
| | - Sergio Tufik
- Basic Research Laboratory - LIM12, Nephrology - Faculty of Medicine, USP, São Paulo, São Paulo, Brazil
| | - Guiomar N Gomes
- Department of Physiology, Escola Paulista de Medicina - UNIFESP, São Paulo, Brazil
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Ahmed SB, Ramesh S. Sex hormones in women with kidney disease. Nephrol Dial Transplant 2016; 31:1787-1795. [DOI: 10.1093/ndt/gfw084] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 03/19/2016] [Indexed: 12/21/2022] Open
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Iran-Nejad A, Nematbakhsh M, Eshraghi-Jazi F, Talebi A. Preventive role of estradiol on kidney injury induced by renal ischemia-reperfusion in male and female rats. Int J Prev Med 2015; 6:22. [PMID: 25830011 PMCID: PMC4378033 DOI: 10.4103/2008-7802.153537] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 12/26/2014] [Indexed: 11/10/2022] Open
Abstract
Background: Renal ischemia-reperfusion (RIR) is the main cause of renal failure. The incidence of RIR injury seems to be gender-related due to female sex hormone; estrogen. This study was designed to investigate the protective role of estrogen against RIR injury in male and ovariectomized female rats. Methods: Thirty-nine Wistar rats were used in this study as male and ovariectomized female rats in the sham-operated, RIR, and estradiol-treated plus RIR groups. The RIR was induced by clamping the renal vessels for 45 min and then 24 h of reperfusion. All animals finally were sacrificed for the measurements. Results: The serum levels of creatinine and blood urea nitrogen and kidney tissue damage score significantly increased in both male and female RIR rats (P < 0.05). Estradiol however significantly attenuated theses parameters (P < 0.05) toward normal levels in female (P < 0.05), but not in male rats. Kidney weight increased in both genders and estradiol intensified it in the male rats (P < 0.05). Uterus weight was increased by estradiol in female rats (P < 0.05) and testis weight did not alter in male rats. Conclusions: Estradiol demonstrated a protective role against RIR injury in female rats; however, estradiol as an antioxidant could not protect the male kidney from RIR injury.
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Affiliation(s)
- Akram Iran-Nejad
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehdi Nematbakhsh
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran ; Department of Physiology, Isfahan University of Medical Sciences, Isfahan, Iran ; Isfahan Institute of Basic and Applied Sciences Research, Isfahan, Iran
| | - Fatemeh Eshraghi-Jazi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ardeshir Talebi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran ; Department of Clinical Pathology, Isfahan University of Medical Sciences, Isfahan, Iran
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Al-Trad B, Ashankyty IM, Alaraj M. Progesterone ameliorates diabetic nephropathy in streptozotocin-induced diabetic Rats. Diabetol Metab Syndr 2015; 7:97. [PMID: 26583047 PMCID: PMC4650109 DOI: 10.1186/s13098-015-0097-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 11/02/2015] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Previous studies reported that 17β-estradiol may influence the progression of diabetic renal disease in females. The present study was intended to provide an insight into the specific effects of progesterone, the other female sex hormone, in the diabetic renal complications. METHODS Adult female wistar rats were divided into four groups (n = 6/group): intact control (non-diabetic, ND), intact diabetic (D), ovariectomized diabetic (D-OVX) and ovariectomized diabetic which were treated with progesterone (D-OVX + P; 10 mg/kg, s.c, every second day) for 10 weeks. Diabetes was induced by a single dose injection of 55 mg/kg streptozotocin. Expressions of transforming growth factor-β (TGF-β), fibronectin, vascular endothelial growth factor-A (VEGF-A), angiotensin II type 1 receptor (ATR1) and podocyte markers (nephrin and podocin) were assessed by immunohistochemistry and real-time PCR. RESULTS The treatment of D-OVX rats with progesterone attenuated diabetic-associated increases in the urinary albumin to creatinine ratio, glomerulosclerosi and the expression of profibrotic and angiogenic factors (TGF-β, Fibronectin and VEGF-A). Furthermore, progesterone supplementation prevented diabetes-induced downregulation of nephrin and podocin while the overexpression of ATR1 in the diabetic rats was inhibited by the progesterone supplementation. CONCLUSION These results provided evidence, for the first time, that the replacement of progesterone can ameliorate the renal damage in the experimental models of diabetic nephropathy through improving the renal function; the inhibition of renal fibrosis and abnormal angiogenesis; along with the amelioration of podocyte injury. Additionally, the blocking of renin-angiotensin system through the down-regulation of ATR1 expression may also account for the reno-protective effect of progesterone.
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Affiliation(s)
- Bahaa Al-Trad
- />Department of Biological Sciences, Yarmouk University, Irbid, Jordan
- />Department of Physiology, College of Medicine, University of Ha’il, 2440 Hail, Saudi Arabia
| | - Ibraheem M. Ashankyty
- />Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Ha’il, Ha’il, Saudi Arabia
- />Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohd Alaraj
- />Department of Pharmacology, College of Medicine, University of Ha’il, Hail, Saudi Arabia
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Lankadeva YR, Singh RR, Tare M, Moritz KM, Denton KM. Loss of a kidney during fetal life: long-term consequences and lessons learned. Am J Physiol Renal Physiol 2014; 306:F791-800. [PMID: 24500691 DOI: 10.1152/ajprenal.00666.2013] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Epidemiological studies reveal that children born with a solitary functioning kidney (SFK) have a greater predisposition to develop renal insufficiency and hypertension in early adulthood. A congenital SFK is present in patients with unilateral renal agenesis or unilateral multicystic kidney dysplasia, leading to both structural and functional adaptations in the remaining kidney, which act to mitigate the reductions in glomerular filtration rate and sodium excretion that would otherwise ensue. To understand the mechanisms underlying the early development of renal insufficiency in children born with a SFK, we established a model of fetal uninephrectomy (uni-x) in sheep, a species that similar to humans complete nephrogenesis before birth. This model results in a 30% reduction in nephron number rather than 50%, due to compensatory nephrogenesis in the remaining kidney. Similar to children with a congenital SFK, uni-x sheep demonstrate a progressive increase in arterial pressure and a loss of renal function with aging. This review summarizes the compensatory changes in renal hemodynamics and tubular sodium handling that drive impairments in renal function and highlights the existence of sex differences in the functional adaptations following the loss of a kidney during fetal life.
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Singh RR, Jefferies AJ, Lankadeva YR, Lombardo P, Schneider-Kolsky M, Hilliard L, Denton KM, Moritz KM. Increased cardiovascular and renal risk is associated with low nephron endowment in aged females: an ovine model of fetal unilateral nephrectomy. PLoS One 2012; 7:e42400. [PMID: 22879965 PMCID: PMC3411741 DOI: 10.1371/journal.pone.0042400] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Accepted: 07/05/2012] [Indexed: 01/28/2023] Open
Abstract
Previously we have shown that ovariectomised (OVX) female sheep have reduced renal function and elevated blood pressure from 6 months of age following fetal uninephrectomy (uni-x) at 100 days of gestation (term = 150 days). In the current study we examined if in intact female sheep the onset of decline in renal function and elevation in blood pressure was prevented. Studies were performed at 1 year, 2 and 5 years of age. Following fetal uni-x at 100 days, intact female sheep had ~30% reduction in glomerular filtration rate (GFR) at 1 year, which did not exacerbate with age (P(treatment) = 0.0001, P(age) = 0.7). In contrast renal blood flow was similar between the treatment groups at 1 year of age but had declined in the uni-x animals at 5 years of age (P(treatment × age) = 0.046). Interestingly, intact uni-x sheep did not develop elevations in arterial pressure until 2 years of age. Furthermore, uni-x animals had a similar capacity to respond to a cardiac challenge at 1 year and 2 years of age, however, cardiac functional reserve was significantly reduced compared to sham group at 5 years of age. Uni-x animals exhibited an increase in left ventricular dimensions at 5 years of age compared to the sham animals and compared to 2 years of age (P(treatment)<0.001, P(treatment × age)<0.001). In conclusion, the onset of renal dysfunction preceded the onset of hypertension in intact female uni-x sheep. Furthermore, this study showed that the intact females are protected from the impact of a reduced nephron endowment on cardiovascular health early in life as opposed to our findings in young male sheep and OVX uni-x female sheep. However, with ageing this protection is lost as evidenced by presence of left ventricular hypertrophy and impaired cardiac function in 5 year old uni-x female sheep.
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Affiliation(s)
- Reetu R Singh
- Department of Anatomy and Developmental Biology, Monash University, Victoria, Australia.
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Cho MH, Jung KJ, Jang HS, Kim JI, Park KM. Orchiectomy attenuates kidney fibrosis after ureteral obstruction by reduction of oxidative stress in mice. Am J Nephrol 2011; 35:7-16. [PMID: 22143161 DOI: 10.1159/000334598] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Accepted: 10/17/2011] [Indexed: 01/17/2023]
Abstract
BACKGROUND/AIMS Men are generally more prone to chronic kidney disease and progression to end-stage renal disease than women. However, the underlying mechanisms remain unclear. In this study, we investigated the role of reactive oxygen species and testosterone in the progression of renal fibrosis in mice with unilateral ureteral obstruction (UUO). METHODS Mice were subjected to either orchiectomy or sham operation 14 days before either UUO or sham surgery. Harvesting of the kidney was performed 7 days after the UUO surgery to measure the production of reactive oxygen species and expression of antioxidants such as catalase, copper-zinc superoxide dismutase, and manganese superoxide dismutase, as well as fibrosis markers including α-smooth muscle actin (α-SMA) and collagen. RESULTS UUO resulted in increased expression of α-SMA and collagen deposition in the kidneys of both female and male mice. These increases were significantly greater in males than females. Orchiectomy significantly reduced increases in α-SMA expression and collagen deposition when compared with intact male. UUO increased the production of hydrogen peroxide and lipid peroxidation along with the decreases in expression of manganese superoxide dismutase, copper-zinc superoxide dismutase, and catalase. These changes induced by UUO were significantly attenuated by orchiectomy. CONCLUSION Males are more susceptible to UUO-induced kidney fibrosis compared with females, and the higher susceptibility of males is obviated by orchiectomy along with reduction in oxidative stress.
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Affiliation(s)
- Min Hyun Cho
- Department of Pediatrics, Kyungpook National University School of Medicine, Daegu, South Korea
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Pérez-Torres I, Ibarra B, Soria-Castro E, Torrico-Lavayen R, Pavón N, Diaz-Diaz E, Flores PL, Infante O, Baños G. Effect of glycine on the cyclooxygenase pathway of the kidney arachidonic acid metabolism in a rat model of metabolic syndrome. Can J Physiol Pharmacol 2011; 89:899-910. [PMID: 22115172 DOI: 10.1139/y11-086] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The kidneys are organs that can be severely impaired by metabolic syndrome (MS). This is characterized by the association of various pathologies such as hypertension, dyslipidemia, and type-2 diabetes. Glycine, a nonessential amino acid, is known to possess various protective effects in the kidney, such as a decrease in the deterioration of renal function and a reduction of the damage caused by hypoxia. In a rat model of MS, the effect of glycine on the cyclooxygenase (COX) pathway of arachidonic acid (AA) metabolism was studied in isolated perfused kidney. MS was induced in Wistar rats by feeding them a 30% sucrose solution for 16 weeks. The addition of 1% glycine to their drinking water containing 30% sucrose, for 8 weeks, reduced high blood pressure, triglyceride levels, insulin concentration, homeostatis model assessment (HOMA) index, albuminuria, AA concentration in kidney homogenate, renal perfusion pressure, prostaglandin levels, PLA2 expression, and COX isoform expression, compared with MS rats that did not receive the glycine supplement. Glycine receptor expression decreased significantly with MS, but glycine treatment increased it. The results suggest that in the MS model, 1% glycine treatment protects the kidney from damage provoked by the high sucrose consumption, by acting as an anti-inflammatory on the COX pathway of AA metabolism in kidney.
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Affiliation(s)
- Israel Pérez-Torres
- a Departments of Pathology, Cardiovascular Biomedicine, Biochemistry and Electromechanical Instrumentation, Instituto Nacional de Cardiología "Ignacio Chávez," Juan Badiano 1, Sección XVI, Tlalpan, 14080 México DF, Mexico
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Gava AL, Freitas FPS, Meyrelles SS, Silva IV, Graceli JB. Gender-dependent effects of aging on the kidney. Braz J Med Biol Res 2011; 44:905-13. [PMID: 21956533 DOI: 10.1590/s0100-879x2011007500101] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2011] [Accepted: 08/05/2011] [Indexed: 11/22/2022] Open
Abstract
It is well known that the kidney plays an important role in the development of cardiovascular diseases such as hypertension. The normal aging process leads to changes in kidney morphology, hemodynamics and function, which increase the incidence of cardiovascular events in the elderly population. These disturbances are influenced by several factors, including gender. In general, females are protected by the effects of estrogens on the cardiorenal system. Several studies have demonstrated the beneficial effects of estrogens on renal function in the elderly; however, the relationships between androgens and kidney health during one's lifetime are not well understood. Sex steroids have many complex actions, and the decline in their levels during aging clearly influences kidney function, decreases the renal reserve and facilitates the development of cardiovascular disorders. Therefore, in this review, we discuss the cellular, biochemical, and molecular mechanisms by which sex hormones may influence renal function during the aging process.
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Affiliation(s)
- A L Gava
- Laboratório de Transgenes e Controle Cardiovascular, Programa de Pós-Graduação em Ciências Fisiológicas, Universidade Federal do Espírito Santo, Vitória, ES, Brasil
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Rocha Gontijo JA, Gui DC, Boer PA, Dos Santos AR, Ferreira-filho CP, Nery Aguiar AR, Da Silva BB. Evaluation of Arterial Blood Pressure and Renal Sodium Handling in a Model of Female Rats in Persistent Estrus. Clin Exp Hypertens 2010; 32:385-9. [DOI: 10.3109/10641961003628536] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Pérez-Torres I, El Hafidi M, Pavón N, Infante O, Avila-Casado MC, Baños G. Effect of gonadectomy on the metabolism of arachidonic acid in isolated kidney of a rat model of metabolic syndrome. Metabolism 2010; 59:414-23. [PMID: 19801156 DOI: 10.1016/j.metabol.2009.08.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2009] [Revised: 07/30/2009] [Accepted: 08/12/2009] [Indexed: 01/10/2023]
Abstract
Influence of sex on arachidonic acid metabolism, a pathway involved in the link between metabolic syndrome (MS) and renal damage, was studied in isolated perfused kidney. Metabolic syndrome was induced by feeding 30% sucrose solution for 24 weeks to intact and gonadectomized female (Ovx) and male (Cas) rats. Systolic blood pressure, albuminuria, as well as prostaglandin E(2) and thromboxane B(2) from urine and perfusate increased in MS male and MS ovariectomized females; castration reduced them in MS males. Perfusion of arachidonic acid in kidneys from MS males increased perfusion pressure compared with controls. No difference appeared in perfusion pressure between control and MS females. Castration diminished perfusion pressure in MS; the opposite was observed in Ovx MS. Perfusion with arachidonic acid plus indomethacin decreased perfusion pressure in MS male kidneys and in Cas MS. In Ovx MS, arachidonic acid plus indomethacin decreased perfusion pressure, but not in female control, MS, and Ovx control. Increase in perfusion pressure with arachidonic acid in both male MS and Ovx MS was related to cyclooxygenase (COX)-1 and COX-2 overexpression in kidney. Castration reduced the expression of COX-1 and COX-2 in MS to control levels. The results suggest that the alteration in arachidonic acid metabolism associated with changes in the expression of COX-1 and COX-2 induced by sucrose intake, and influenced by sex hormones, may contribute to renal damage.
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Affiliation(s)
- Israel Pérez-Torres
- Department of Pathology, Instituto Nacional de Cardiología Ignacio Chávez Juan Badiano 1, Sección XVI, Tlalpan, 14080 México DF, México
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Yanes LL, Sartori-Valinotti JC, Reckelhoff JF. Sex steroids and renal disease: lessons from animal studies. Hypertension 2008; 51:976-81. [PMID: 18259026 DOI: 10.1161/hypertensionaha.107.105767] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Licy L Yanes
- Department of Physiology and Biophysics, The Center for Excellence in Cardiovascular-Renal Research, University of Mississippi Medical Center, Jackson, MS 39216-4505, USA
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Loria A, Reverte V, Salazar F, Saez F, Llinas MT, Salazar FJ. Changes in renal hemodynamics and excretory function induced by a reduction of ANG II effects during renal development. Am J Physiol Regul Integr Comp Physiol 2007; 293:R695-700. [PMID: 17491111 DOI: 10.1152/ajpregu.00191.2007] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aim was to evaluate whether blockade of ANG II effects during renal development modifies the renal response to an increment of plasma amino acid concentration. It was also examined in anesthetized rats whether the reduction of the renal ability to eliminate an acute volume expansion (VE), elicited by blockade of ANG II during renal development, is sex and/or age dependent. Newborn Sprague-Dawley rats were treated with vehicle or an AT(1)-receptor antagonist (ARA) during postnatal nephrogenesis. Amino acid infusion induced increments (P < 0.05) of glomerular filtration rate (31 +/- 6%) and renal plasma flow (26 +/- 5%) in male but not in female vehicle-treated rats. Natriuretic and diuretic responses to amino acid infusion were similar in male and female vehicle-treated rats. These renal hemodynamics and excretory responses to amino acid infusion were abolished in ARA-treated rats. Renal responses to VE were evaluated at 3-4 and 9-10 mo of age in vehicle and ARA-treated rats. VE-induced natriuresis and diuresis were reduced by more than 38% (P < 0.05) in 3- to 4-mo-old male and female ARA-treated rats. An age-dependent reduction (P < 0.05) in the renal ability to eliminate VE was found in male but not in female rats treated with ARA. Our results demonstrate that the renal effects induced by an increment in amino acids are abolished when ANG II effects have been reduced during nephrogenesis. In addition, this reduction of ANG II effects elicits an impairment of the renal ability to eliminate an acute VE in males and females, which is aggravated by age only in male rats.
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Affiliation(s)
- Analia Loria
- Department of Physiology, School of Medicine, University of Murcia, 30100 Murcia, Spain
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Abstract
PURPOSE OF REVIEW The aim of this article is to discuss the impact of male and female sex hormones on renal function and to develop the concept that salt-sensitivity of renal function behaves independently of the systemic blood pressure response to salt and may contribute to renal sex-specific differences. RECENT FINDINGS Men exhibit a more rapid age-related decline in renal function than women and some renal diseases are clearly sex dependent. Recent studies have shown that gonadal steroids have an important influence on sodium handling and renal hemodynamics that may offer a key for understanding the sexual dimorphism of the renal function. It has been found that androgens increase proximal sodium reabsorption and intraglomerular pressure by modulating afferent and efferent arteriolar tonus via angiotensin II, endothelin and oxidative stress. In contrast, female sex hormones lead to a renal vasodilation and decrease filtration fraction. SUMMARY Some newly discovered mechanisms triggering the salt-sensitivity of the renal function and the interaction between gonadal steroids and components of the renin cascade may play an important role in the dimorphism of renal response to salt.
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Affiliation(s)
- Antoinette Pechere-Bertschi
- Medical Policlinic and Service of Endocrinology, Diabetology and Nutrition, University Hospital, Geneva, Switzerland.
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Karl M, Berho M, Pignac-Kobinger J, Striker GE, Elliot SJ. Differential effects of continuous and intermittent 17beta-estradiol replacement and tamoxifen therapy on the prevention of glomerulosclerosis: modulation of the mesangial cell phenotype in vivo. THE AMERICAN JOURNAL OF PATHOLOGY 2006; 169:351-61. [PMID: 16877338 PMCID: PMC1698782 DOI: 10.2353/ajpath.2006.051255] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Female ROP Os/+ mice are partially protected by endogenous estrogens against progressive glomerulosclerosis (GS) during their reproductive period; however, ovariectomy accelerates GS progression. We examined the effects of continuous and intermittent 17beta-estradiol (E(2)) replacement and tamoxifen therapy on the development of GS in ovariectomized (Ovx) ROP Os/+ mice. Continuous E(2) replacement (CE(2)) throughout 9 months prevented microalbuminuria and excess extracellular matrix accumulation in Ovx ROP Os/+, not only compared to placebo-treated Ovx mice but also in comparison to intact female ROP Os/+. Tamoxifen had a similar effect, but of lesser magnitude. Intermittent 3-month on-off-on E(2) did not reduce the kidney changes. Mesangial cells (MCs) from CE(2) mice maintained their estrogen responsiveness. E(2) in vitro prevented transforming growth factor-beta1 stimulation of a Smad-responsive reporter construct and increased MMP-2 expression and activity in MCs isolated from CE(2) mice. MCs from mice on either placebo or intermittent E(2) treatment did not respond to added E(2), consistent with a stable alteration of their estrogen responsiveness. Tamoxifen protection against GS was less pronounced in ROP Os/+ mice. Thus, prolonged estrogen deficiency promotes GS and renders MCs insensitive to subsequent estrogen treatment. This underscores the importance of continuous estrogen exposure for maintaining glomerular function and structure in females susceptible to progressive GS.
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Affiliation(s)
- Michael Karl
- Vascular Biology Institute, Leonard M. Miller School of Medicine, University of Miami, Miami, FL 33136, USA.
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