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angiotensinogen

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https://www.readbyqxmd.com/read/29775675/associations-between-angiotensinogen-m235t-polymorphisms-and-the-risk-of-diabetic-nephropathy-a-meta-analysis
#1
Bo Zhou, Min Wen, Ling Mi, Cu-Jiao Hu, Yi Zhang, Jian-Tar Wang, Lei Tang
AIMS: The aim of the present study was to clarify the potential relationship of angiotensinogen (AGT) M235T polymorphism and diabetic nephropathy (DN) risk. METHODS: Comprehensive electronic search in Pubmed, Web of Science, EBSCO, Embase, the Cochrane Library and China National Knowledge Infrastructure (CNKI) to find original articles about the association between AGT M235T polymorphism and DN risk published before 27 September 2017. Literature quality assessment was performed with the Newcastle-Ottawa Scale...
May 15, 2018: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/29733413/urinary-angiotensinogen-an-indicator-of-active-antineutrophil-cytoplasmic-antibody-associated-glomerulonephritis
#2
Liling Wu, Manqiu Yang, Xiaogang Feng, Lingwei Jin, Chunyi Wu, Shuang Cui, Zhanmei Zhou, Xiaohong Zhong, Meng Shi, Zhichen Yang, Wei Cao
Background: One of the major challenges in improving the management of antineutrophil cytoplasmic antibody-associated glomerulonephritis (ANCA-GN) is the lack of a disease-specific indicator for histological lesions and disease activity. Here we tested the utility of urinary angiotensinogen (UAGT) as a biomarker of renal disease activity in ANCA-GN. Methods: A prospective, two-stage cohort study was performed in ANCA-GN patients. In Stage I, UAGT was measured at the time of renal biopsy in 69 patients from two centers (test set) and 25 patients from two other centers (validation set)...
May 4, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29712882/angiotensin-generation-in-the-brain-a-re-evaluation
#3
REVIEW
Estrellita Uijl, Liwei Ren, A H Jan Danser
The existence of a so-called brain renin-angiotensin system (RAS) is controversial. Given the presence of the blood-brain barrier, angiotensin generation in the brain, if occurring, should depend on local synthesis of renin and angiotensinogen. Yet, although initially brain-selective expression of intracellular renin was reported, data in intracellular renin knockout animals argue against a role for this renin in angiotensin generation. Moreover, renin levels in brain tissue at most represented renin in trapped blood...
April 30, 2018: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29683146/effects-of-olmesartan-and-azilsartan-on-albuminuria-and-the-intrarenal-renin-angiotensin-system
#4
Takeshi Takami, Sadanori Okada, Yoshihiko Saito, Yoko Nishijima, Hiroyuki Kobori, Akira Nishiyama
Purpose: Olmesartan and azilsartan decrease blood pressure more effectively than other angiotensin receptor blockers (ARBs). ARBs additionally decrease the urinary albumin to creatinine ratio (UACR), a urinary albumin marker, and urinary angiotensinogen (u-AGT), an intrarenal renin-angiotensin system activity marker. We examined the effects of these ARBs on blood pressure, UACR, and u-AGT in patients with uncontrolled hypertension. Methods: Patients with uncontrolled hypertension treated with conventional ARBs, excluding olmesartan and azilsartan, for over 8 weeks were enrolled...
January 2018: World journal of research and review
https://www.readbyqxmd.com/read/29674190/urinary-angiotensinogen-excretion-in-australian-indigenous-and-non-indigenous-pregnant-women
#5
Kirsty G Pringle, Celine Corbisier de Meaultsart, Shane D Sykes, Loretta J Weatherall, Lyniece Keogh, Don C Clausen, Gus A Dekker, Roger Smith, Claire T Roberts, Kym M Rae, Eugenie R Lumbers
The intrarenal renin-angiotensin system (iRAS) is implicated in the pathogenesis of hypertension, chronic kidney disease and diabetic nephropathy. Urinary angiotensinogen (uAGT) levels reflect the activity of the iRAS and are altered in women with preeclampsia. Since Indigenous Australians suffer high rates and early onset of renal disease, we hypothesised that Indigenous Australian pregnant women, like non-Indigenous women with pregnancy complications, would have altered uAGT levels. The excretion of RAS proteins was measured in non-Indigenous and Indigenous Australian women with uncomplicated or complicated pregnancies (preeclampsia, diabetes/gestational diabetes, proteinuria/albuminuria, hypertension, small/large for gestational age, preterm birth), and in non-pregnant non-Indigenous women...
April 11, 2018: Pregnancy Hypertension
https://www.readbyqxmd.com/read/29655688/novel-ras-inhibitor-25-o-methylalisol-f-attenuates-epithelial-to-mesenchymal-transition-and-tubulo-interstitial-fibrosis-by-selectively-inhibiting-tgf-%C3%AE-mediated-smad3-phosphorylation
#6
Hua Chen, Tian Yang, Min-Chang Wang, Dan-Qian Chen, Yang Yang, Ying-Yong Zhao
BACKGROUND: Tubulo-interstitial fibrosis (TIF) is the common pathway in the chronic kidney disease (CKD). Epithelial-to-mesenchymal transition (EMT) is a major contributor to the TIF by the increased myofibroblasts. Renin-angiotensin system (RAS) is critical mediator on EMT in progressive CKD. Angiotensin II (ANG) mediates EMT and causes TIF by stimulating transforming growth factor-β1 (TGF-β1). RAS activation could further activate TGF-β1. Inhibition of the RAS is one of the most powerful therapies for progressive CKD...
March 15, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29652095/decrease-in-neprilysin-and-vasoconstrictors-and-increase-in-vasodilators-following-bariatric-surgery
#7
Husam Ghanim, Scott Monte, Joseph Caruana, Kelly Green, Sanaa Abuaysheh, Paresh Dandona
Since morbid obesity is associated with congestive cardiac failure and hypertension, and gastric bypass surgery is followed by a reduction in blood pressure and in the risk of congestive cardiac failure, we hypothesized that weight loss following Roux-en-Y gastric bypass (RYGB) surgery in morbidly obese patients is associated with a decrease in plasma concentrations of neprilysin, mediators of renin angiotensin system (RAS), catecholamines and endothelin-1 with an increase in the concentrations of vasodilators...
April 13, 2018: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/29627490/genetically-determined-enlargement-of-carotid-body-evaluated-using-computed-angiotomography
#8
Przemysław Jaźwiec, Paweł Gać, Monika Chaszczewska-Markowska, Katarzyna Bogunia-Kubik, Grzegorz Mazur, Rafał Poręba
It has recently been established that carotid bodies play a significant role in the regulation of activities of the cardiovascular system as well as in the pathogenesis of arterial hypertension, heart failure and diabetes. Aim of study was to determinate the influence of polymorphisms within genes of the renin-angiotensin-aldosterone system (RAAS) on the volume of the carotid bodies (CB) in patients with hypertension (HTA). The study group consisted of 77 patients with HTA. All patients were genotyped for single-nucleotide polymorphisms of genes coding for: angiotensinogen: rs4762, rs5049, rs5051 and rs699; angiotensin-converting enzyme: rs4343; angiotensin receptor type 1 gene (AGTR1): rs5182 and rs5186; and the aldosterone synthase: rs1799998...
April 5, 2018: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/29600408/independent-regulation-of-renin-angiotensin-aldosterone-system-in-the-kidney
#9
REVIEW
Akira Nishiyama, Hiroyuki Kobori
Renin-angiotensin-aldosterone system (RAAS) plays important roles in regulating renal hemodynamics and functions, as well as in the pathophysiology of hypertension and renal disease. In the kidney, angiotensin II (Ang II) production is controlled by independent multiple mechanisms. Ang II is compartmentalized in the renal interstitial fluid with much higher concentrations than those existing in the circulation. Inappropriate activation of the intrarenal RAAS is an important contributor to the pathogenesis of hypertension and renal injury...
March 29, 2018: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/29590173/soluble-klotho-as-a-marker-of-renal-fibrosis-and-podocyte-injuries-in-human-kidneys
#10
Nam-Jun Cho, Dong-Jae Han, Ji-Hye Lee, Si-Hyong Jang, Jeong Suk Kang, Hyo-Wook Gil, Samel Park, Eun Young Lee
Klotho deficiency is relevant to renal fibrosis and podocyte injury in vivo and in vitro. We examined whether histological findings of renal biopsy specimens were associated with the levels of soluble klotho in humans. We investigated renal biopsy specimens of 67 patients and detailed microscopic findings were reviewed. Soluble serum/urinary klotho and urinary angiotensinogen were assessed by enzyme-linked immunosorbent assays, and tissue klotho expression was assessed by immunohistochemical staining. The median age of the study participants was 35...
2018: PloS One
https://www.readbyqxmd.com/read/29577044/tubulointerstitial-biomarkers-for-diabetic-nephropathy
#11
REVIEW
Bancha Satirapoj
Patients with diabetic nephropathy have a higher risk of mortality, mostly from cardiovascular complications. Standard biomarkers including serum creatinine, estimated glomerular filtration rate, and albuminuria are imprecise, do not directly measure renal tissue injury, and are relatively insensitive to small changes in renal function. Thus, availability of novel biomarkers that are sensitive, specific, and precise as well as able to detect kidney injury and predict clinically significant outcomes would be widely useful in diabetic nephropathy...
2018: Journal of Diabetes Research
https://www.readbyqxmd.com/read/29549731/protective-effect-of-lespedeza-cuneata-ethanol-extract-on-bisphenol-a-induced-testicular-dysfunction-in-vivo-and-in-vitro
#12
Bongkyun Park, Jeong Eun Kwon, Se Min Cho, Chang Won Kim, Da Eun Lee, Young Tae Koo, Sang Hun Lee, Hyun Myung Lee, Se Chan Kang
PURPOSE: Bisphenol A (BPA) has been regarded as a possible risk factor for reproductive health. We examined potential reproductive health benefits of Lespedeza cuneata ethanol extract (LCE). Previously, Lespedeza cuneata showed many therapeutic effects. However, the protective effect of LCE on BPA-induced testicular dysfunction and its mechanisms have not been precisely studied. METHODS: Mice were randomly divided into six groups (n = 7). Sperm counts and motility were measured by light microscope...
June 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29540174/prenatal-dexamethasone-and-postnatal-high-fat-diet-have-a-synergistic-effect-of-elevating-blood-pressure-through-a-distinct-programming-mechanism-of-systemic-and-adipose-renin-angiotensin-systems
#13
Hong-Ren Yu, You-Lin Tain, Mao-Meng Tiao, Chih-Cheng Chen, Jiunn-Ming Sheen, I-Chun Lin, Shih-Wen Li, Ching-Chou Tsai, Yu-Ju Lin, Kai-Sheng Hsieh, Li-Tung Huang
BACKGROUND: Hypertension may result from high-fat (HF) diet induced-obesity and overexposure to glucocorticoids in utero. Recent studies demonstrated the potent contribution of adipose tissue's renin-angiotensin system (RAS) to systemic RAS, which plays a key role in regulating blood pressure (BP). In this study, we investigated the effects of prenatal dexamethasone (DEX) exposure and postnatal HF diet on RAS of adipose tissue. METHODS: RAS and BP of 6-month old rats exposed to prenatal DEX and/or postnatal HF diet were examined...
March 14, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29529602/combined-inhibition-of-soluble-epoxide-hydrolase-and-renin-angiotensin-system-exhibits-superior-renoprotection-to-renin-angiotensin-system-blockade-in-5-6-nephrectomized-ren-2-transgenic-hypertensive-rats-with-established-chronic-kidney-disease
#14
Věra Čertíková Chábová, Petr Kujal, Petra Škaroupková, Zdeňka Varňourková, Šárka Vacková, Zuzana Husková, Soňa Kikerlová, Janusz Sadowski, Elzbieta Kompanowska-Jezierska, Iwona Baranowska, Sung Hee Hwang, Bruce D Hammock, John D Imig, Vladimír Tesař, Ludek Červenka
BACKGROUND/AIMS: We found recently that increasing renal epoxyeicosatrienoic acids (EETs) levels by blocking soluble epoxide hydrolase (sEH), an enzyme responsible for EETs degradation, shows renoprotective actions and retards the progression of chronic kidney disease (CKD) in Ren-2 transgenic hypertensive rats (TGR) after 5/6 renal ablation (5/6 NX). This prompted us to examine if additional protection is provided when sEH inhibitor is added to the standard renin-angiotensin system (RAS) blockade, specifically in rats with established CKD...
March 6, 2018: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29523869/correlation-between-the-24-h-urinary-angiotensinogen-or-aldosterone-level-and-muscle-mass-japan-shimanami-health-promoting-program-study
#15
Masaki Mogi, Katsuhiko Kohara, Yasuharu Tabara, Kana Tsukuda, Michiya Igase, Masatsugu Horiuchi
Our previous report indicated that sarcopenia is associated with arterial stiffness and cardiovascular death. The renin-angiotensin system (RAS) plays an important role in cardiovascular disease and its activation may be correlated with sarcopenia according to basic research. However, few clinical studies have assessed the correlation between skeletal muscle loss and RAS component concentrations in healthy subjects. The purpose of this study was to investigate the relationships between the excretion of angiotensinogen (AGT) and aldosterone (Ald) in 24-h urine samples and clinical and sarcopenic indices...
May 2018: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/29521315/relationship-between-intrarenal-renin-angiotensin-activity-and-re-hospitalization-in-patients-with-heart-failure-with-reduced-ejection-fraction
#16
Özcan Örsçelik, Buğra Özkan, Ayça Arslan, Emre Ertan Şahin, Ozan Sakarya, Orçun Ali Sürmeli, Şenay Balcı Fidancı, Ahmet Çelik, Burak Yavuz Çimen, İsmail Türkay Özcan
OBJECTIVE: Heart failure (HF) is a clinical syndrome resulting from structural or functional damages. Although clinical trials have shown that the plasma renin-angiotensin system (RAS) activation decreases HF functional status and increases hospitalization for HF patients, the effect of intrarenal RAS activity is still unknown. In this study, we investigated the relationship between the New York Heart Association (NYHA) class, duration, and number of hospitalizations in the previous year and urinary angiotensinogen (UAGT) in patients with HF with reduced ejection fraction (HFrEF)...
March 2018: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/29514038/interleukin-4-gene-il4-polymorphism-rs2243250-is-not-associated-with-diabetic-nephropathy-dn-in-caucasians-with-type-2-diabetes-mellitus-t2dm
#17
Matej Završnik, Jernej Letonja, Jana Makuc, Maja Šeruga, Ines Cilenšek, Daniel Petrovič
Diabetic nephropathy (DN) is a microvascular complication that affects up to 40% of diabetic patients and can lead to end-stage kidney disease. Inflammatory cytokines such as interleukin 1 (IL-1), IL-6, IL-18 and tumor necrosis factor-α have been linked to the development and progression of DN. The aim of our study was to examine the relationship between rs2243250 polymorphism of the interleukin 4 gene (IL4) and DN in patients with type 2 diabetes mellitus (T2DM). This study is a continuation of our previous research on the association between angiotensinogen (AGT) gene polymorphisms and DN in patients with T2DM...
March 7, 2018: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29513563/chronic-hypertension-in-pregnancy-the-impact-of-ethnicity-and-superimposed-preeclampsia-on-placental-endothelial-and-renal-biomarkers
#18
Louise Mary Webster, Carolyn Gill, Paul T Seed, Kate Bramham, Cornelia Wiesender, Catherine Nelson-Piercy, Jenny E Myers, Lucy C Chappell
Black ethnicity is associated with worse pregnancy outcomes in women with chronic hypertension. Pre-existing endothelial and renal dysfunction, and poor placentation may contribute but pathophysiological mechanisms underpinning increased risk are poorly understood. This cohort study aimed to investigate the relationship between ethnicity, superimposed pre-eclampsia and longitudinal changes in markers of endothelial, renal and placental dysfunction in women with chronic hypertension. Plasma concentrations of placental growth factor (PlGF), syndecan-1, renin, aldosterone, and urinary angiotensinogen:creatinine ratio (AGTCR), protein:creatinine ratio (PCR) and albumin:creatinine ratio (ACR) were quantified during pregnancy and postpartum in women with chronic hypertension...
March 7, 2018: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29507351/night-time-activation-of-the-intrarenal-renin-angiotensin-system-due-to-nocturnal-hypertension-is-associated-with-renal-arteriosclerosis-in-normotensive-iga-nephropathy-patients
#19
Naro Ohashi, Shinsuke Isobe, Takashi Matsuyama, Sayaka Ishigaki, Naoko Tsuji, Tomoyuki Fujikura, Takayuki Tsuji, Akihiko Kato, Hideo Yasuda
Intrarenal renin-angiotensin system (RAS) activation plays an important role in the development of hypertension and renal damage. However, the association between daytime and night-time intrarenal RAS activation and renal structural damage in normotensive IgA nephropathy patients is unclear. We investigated the relationships between urinary angiotensinogen (U-AGT) excretion, which reflects intrarenal RAS activity, and renal structural damage (i.e., endocapillary and mesangial cell hypercellularity, arteriolar hyalinosis and arteriosclerosis levels, and global glomerulosclerosis and tubulointerstitial fibrosis percentages) in 27 normotensive IgA nephropathy patients (age 39...
May 2018: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/29506687/aldh2-protects-against-alcoholic-cardiomyopathy-through-a-mechanism-involving-the-p38-mapk-creb-pathway-and-local-renin-angiotensin-system-inhibition-in-cardiomyocytes
#20
Baoshan Liu, Rui Zhang, Shujian Wei, Qiuhuan Yuan, Mengyang Xue, Panpan Hao, Feng Xu, Jiali Wang, Yuguo Chen
BACKGROUND: Angiotensin II (Ang II) in the local cardiac renin-angiotensin system (RAS) is closely associated with alcoholic cardiomyopathy (ACM). Inhibition of local cardiac RAS has great significance in the treatment of ACM. Although aldehyde dehydrogenase 2 (ALDH2) has been demonstrated to protect against ACM through detoxification of aldehydes, the precise mechanisms are largely unknown. In the present study, we determined whether ALDH2 improved cardiac damage by inhibiting the local RAS in ACM and investigated the related regulatory mechanisms...
April 15, 2018: International Journal of Cardiology
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