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https://www.readbyqxmd.com/read/28822808/bml-111-equilibrated-ace-angii-at1r-and-ace2-ang-1-7-mas-axis-to-protect-hepatic-fibrosis-in-rats
#1
Quandong Hu, Zhenzhen Hu, Qiongfeng Chen, Yonghong Huang, Zi Mao, Fangyun Xu, Xiaoyan Zhou
BACKGROUND: It was recently reported Lipoxins (LXs) had protective effects on fibrous diseases, and renin-angiotensin-aldosterone system (RAAS) had played vital and bidirectional roles in hepatic fibrosis. In this paper, a hepatic fibrosis model, induced by carbon tetrachloride (CCL4) in rats, was used to observe the relations between RAAS and LXs, as well as to further explore the alternative anti-fibrosis mechanisms of LXs. METHODS: The model was evaluated by morphological observations and biochemical assays...
August 16, 2017: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/28820061/renin-angiotensin-system-and-cytokines-in-chronic-kidney-disease-clinical-and-experimental-evidence
#2
Ariadna Andrade Saldanha Silva, Beranardo Bahia Finotti, Amanda Oliveira Lauar, Thiago Ruiz Rodrigues Prestes, Ana Cristina Simões E Silva
Chronic kidney disease (CKD) has become a major public health problem in Brazil and worldwide. There are many causes of CKD, being the congenital anomalies of the kidney and urinary tract and the glomerular diseases very common in pediatric patients, while diabetic nephropathy, CKD due to chronic arterial hypertension and glomerular diseases are predominant in adult patients. Many endogenous mediators have been related to the pathophysiology of CKD, being relevant the effects of the renin-angiotensin system (RAS) and the immune-inflammatory mediators including cytokines...
August 18, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28814250/angiotensin-converting-enzymes-ace-and-ace2-as-potential-targets-for-malignant-epithelial-neoplasia-review-and-bioinformatics-analyses-focused-in-oral-squamous-cell-carcinoma
#3
Carlos Alberto Carvalho Fraga, Lucyana Conceição Farias, Alfredo Maurício Batista de Paula, André Guimarães, Kimberly Marie Jones
The Renin-Angiotensin System (RAS) has emerged as being related to vascular disease. Recently the RAS has been associated with obesity, diabetes, and even cancer. This review focuses on the therapeutic potential of angiotensin converting enzyme (ACE) inhibitors for Oral Squamous Cell Carcinoma (OSCC). Considering the limited literature, Bioinformatics analyses was performed to identify possible effects of ACE inhibitors in OSCC. The current review intends to more fully explore the potential benefits of ACE inhibitors for OSCC patients...
August 15, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28809959/expression-and-activity-of-angiotensin-regulating-enzymes-is-associated-with-prognostic-outcome-in-clear-cell-renal-cell-carcinoma-patients
#4
Peio Errarte, Maider Beitia, Itxaro Perez, Lorea Manterola, Charles H Lawrie, Jon Danel Solano-Iturri, Julio Calvete-Candenas, Miguel Unda, José I López, Gorka Larrinaga
The discovery of the intrarenal renin-angiotensin system (iRAS), which regulates angiogenesis, cell differentiation and proliferation, has opened new perspectives in the knowledge of kidney carcinogenesis. In this study we analyzed the immunohistochemical expression and fluorimetric activity of four key peptidases of iRAS in tumor tissue (n = 144) and serum samples (n = 128) from patients with renal neoplasms. Neutral endopeptidase (NEP/CD10), Angiotensin-converting enzyme-2 (ACE2), and aminopeptidase A (APA) were expressed in tumor cells whilst Angiotensin-converting enzyme (ACE) was expressed in the endothelial cells of intratumor blood vessels...
2017: PloS One
https://www.readbyqxmd.com/read/28808068/deletion-of-angiotensin-converting-enzyme-2-promotes-hypertensive-nephropathy-by-targeting-smad7-for-ubiquitin-degradation
#5
Zhen Liu, Xiao-Ru Huang, Hai-Yong Chen, Erik Fung, Jian Liu, Hui-Yao Lan
Angiotensin-converting enzyme-2 (ACE2) is downregulated in hypertensive nephropathy. The present study investigated the mechanisms whereby loss of ACE2 promoted angiotensin II-induced hypertensive nephropathy in ACE2 gene knockout mice. We found that compared with wild-type animals, mice lacking ACE2 developed much more severe hypertensive nephropathy in response to chronic angiotensin II infusion, including higher levels of blood pressure, urinary protein excretion, serum creatinine, and progressive renal fibrosis and inflammation...
August 14, 2017: Hypertension
https://www.readbyqxmd.com/read/28791402/role-of-the-ace2%C3%A2-ang%C3%A2-1%C3%A2-7-%C3%A2-mas-axis-in-blood-pressure-regulation-and-its-potential-as-an-antihypertensive-in-functional-foods-review
#6
Shiqi Lin, Huanglei Pan, Hongli Wu, Difeng Ren, Jun Lu
The renin‑angiotensin system (RAS) serves a critical role in blood pressure regulation and prevention of cardiovascular diseases. Efforts to develop functional foods that enhance the RAS have focused on inhibition of angiotensin‑converting enzyme (ACE) activity in the ACE‑angiotensin II (Ang II)‑Ang II type 1 receptor axis. ACE2 and the Mas receptor are important components of this axis. ACE2 catalyzes Ang II into Ang‑(1‑7), which then binds to the G‑protein‑coupled receptor Mas. In addition, it induces nitric oxide release from endothelial cells and exerts antiproliferative, vasodilatory and antihypertensive effects...
August 4, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28791381/protective-effect-of-diminazene-attenuates-myocardial-infarction-in-rats-via-increased-inflammation-and-ace2-activity
#7
Junjiang Chen, Lianqun Cui, Jingliang Yuan, Songcun Zhang, Rongmei Ma, Hongjun Sang, Qingjiang Liu, Lianfeng Shan
The present study aimed to investigate whether diminazene attenuates myocardial infarction (MI) in rats. In addition, the present study investigated whether ACE2 signaling was involved in the effects of diminazene on protein function. A rat model of acute myocardial infarction (AMI) was established by occlusion of the left anterior descending coronary artery. The AMI model rats received intraperitoneal injections of diminazene (5 mg/kg/day) for 3 days. Treatment with diminazene significantly inhibited the expression of casein kinase and lactate dehydrogenase, and reduced infarct size in AMI rats...
August 3, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28772209/renin-angiotensin-aldosterone-raas-the-ubiquitous-system-for-homeostasis-and-pathologies
#8
Seema Patel, Abdur Rauf, Haroon Khan, Tareq Abu-Izneid
Renin-angiotensin-aldosterone system (RAAS) is a vital system of human body, as it maintains plasma sodium concentration, arterial blood pressure and extracellular volume. Kidney-secreted renin enzyme acts on its substrate to form angiotensin II, a versatile effector peptide hormone. Every organ is affected by RAAS activation and the resultant hypertension, cell proliferation, inflammation, and fibrosis. The imbalance of renin and angiotensin II can result in an overwhelming number of chronic and acute diseases...
July 31, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28761566/many-faces-of-renin-angiotensin-system-focus-on-eye
#9
REVIEW
Mervi Holappa, Heikki Vapaatalo, Anu Vaajanen
The renin-angiotensin system (RAS), that is known for its role in the regulation of blood pressure as well as in fluid and electrolyte homeostasis, comprises dozens of angiotensin peptides and peptidases and at least six receptors. Six central components constitute the two main axes of the RAS cascade. Angiotensin (1-7), an angiotensin converting enzyme 2 and Mas receptor axis (ACE2-Ang(1-7)-MasR) counterbalances the harmful effects of the angiotensin II, angiotensin converting enzyme 1 and angiotensin II type 1 receptor axis (ACE1-AngII-AT1R) Whereas systemic RAS is an important factor in blood pressure regulation, tissue-specific regulatory system, responsible for long term regional changes, that has been found in various organs...
2017: Open Ophthalmology Journal
https://www.readbyqxmd.com/read/28761062/t2diacod-a-gene-atlas-of-type-2-diabetes-mellitus-associated-complex-disorders
#10
Jyoti Rani, Inna Mittal, Atreyi Pramanik, Namita Singh, Namita Dube, Smriti Sharma, Bhanwar Lal Puniya, Muthukurussi Varieth Raghunandanan, Ahmed Mobeen, Srinivasan Ramachandran
We performed integrative analysis of genes associated with type 2 Diabetes Mellitus (T2DM) associated complications by automated text mining with manual curation and also gene expression analysis from Gene Expression Omnibus. They were analysed for pathogenic or protective role, trends, interaction with risk factors, Gene Ontology enrichment and tissue wise differential expression. The database T2DiACoD houses 650 genes, and 34 microRNAs associated with T2DM complications. Seven genes AGER, TNFRSF11B, CRK, PON1, ADIPOQ, CRP and NOS3 are associated with all 5 complications...
July 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28758596/effects-of-sleeve-gastrectomy-on-the-metabolic-profile-and-on-the-expression-of-renin-angiotensin-system-in-adipose-tissue-of-obese-rats
#11
Thaísa Soares Crespo, João Marcus Oliveira Andrade, Alanna Fernandes Paraíso, Deborah de Farias Lelis, Pablo Vinicyus Ferreira Chagas, Antônio Sérgio Barcala Jorge, Wagner Leite Ferreira, Alfredo Maurício Batista de Paula, André Luiz Sena Guimarães, Sérgio Henrique Sousa Santos
Sleeve gastrectomy (SG) has been used as a multipurpose surgical procedure for the treatment of obesity. The present study assessed the effects of SG on the metabolic and inflammatory profile and renin-angiotensin system (RAS) expression in the white adipose tissue of male rats with obesity induced by a high-fat diet. Male Wistar rats were treated with a standard diet or high-fat diet and submitted to SG or sham surgery. The glycemic and lipid profiles and gene expression of inflammatory markers and RAS components in adipose tissue were evaluated...
July 28, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28758595/vasodilator-effect-of-angiotensin-1-7-on-vascular-coronary-bed-of-rats-role-of-mas-ace-and-ace2
#12
Patrícia Lanza Moraes, Lucas Miranda Kangussu, Carlos Henrique Castro, Robson As Santos, Anderson José Ferreira, Alvair P Almeida
Angiotensin(Ang)-(1-7) is a biologically active member of the renin-angiotensin system that participates of the regulation of blood pressure. Although Ang-(1-7) is able to potentiate the vasodilator effect of bradykinin in coronary bed of rats, a direct vasodilator effect of Ang-(1-7) in this vascular bed has not been characterized. Thus, the aim of this study was to evaluate the mechanisms involved in the vasodilator effect of Ang-(1-7) in the vasculature of isolated rat hearts perfused according to the Langendorff technique at constant flow...
July 28, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28758593/physical-exercise-and-ace2-angiotensin-1-7-mas-receptor-axis-of-the-renin-angiotensin-system
#13
Albená Nunes-Silva, Guilherme Carvalho Rocha, Daniel Massote Magalhaes, Lucas Neves Vaz, Marcelo Henrique Salviano Faria, Ana Cristina Simões E Silva
Many physiological responses of the Renin Angiotensin System (RAS) are associated with two opposite pathways: (1) a classical one formed by angiotensin-converting enzyme (ACE), Angiotensin II (Ang II) and Angiotensin type 1 (AT1) receptor, which is associated to vasoconstriction, cell proliferation, organ hypertrophy, sodium retention and aldosterone release and (2) a counter-regulatory or vasodilator pathway comprising angiotensin-converting enzyme 2 (ACE2), Angiotensin-(1-7) [Ang-(1-7)] and Mas receptor, which is involved in vasodilation, anti-proliferation, anti-hypertrophy, cardioprotective and renoprotective actions...
July 28, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28758592/the-angiotensin-converting-enzyme-2-ace2-gut-microbiota-and-cardiovascular-health
#14
João Marcus Oliveira Andrade, Deborah de Farias Lelis, Valeria Mafra, Junio Cota
The renin-angiotensin system (RAS) is an important enzymatic system responsible for the regulation of biological functions, such as the arterial pressure, hydroelectrolytic control and vascular vasodilatation/vasoconstriction. The RAS component ACE2 acts as a mediator in vasoprotection, and it is highly expressed in the kidney, heart, and testis. Recently, the association between the ACE2 and gut microbiota has been discussed. It is shown that the ACE2/Ang-(1-7) axis modulates the immune response, influencing the microbiota composition, and thus being one of the causes for some diseases physiophatologies, such as diarrhea and intestinal inflammatory disease...
July 28, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28748720/blunting-of-cardioprotective-actions-of-estrogen-in-female-rodent-heart-linked-to-altered-expression-of-cardiac-tissue-chymase-and-ace2
#15
Jacqueline S da Silva, Daniele Gabriel-Costa, Hao Wang, Sarfaraz Ahmad, Xuming Sun, Jasmina Varagic, Roberto T Sudo, Carlos M Ferrario, Louis J Dell Italia, Gisele-Zapata Sudo, Leanne Groban
BACKGROUND: Diastolic dysfunction develops in response to hypertension and estrogen (E2) loss and is a forerunner to heart failure (HF) in women. The cardiac renin-angiotensin system (RAS) contributes to diastolic dysfunction, but its role with respect to E2 and blood pressure remain unclear. METHODS: We compared the effects of ovariectomy (OVX) or sham surgery on the cardiac RAS, left ventricular (LV) structure/function, and systemic/intracardiac pressures of spontaneously hypertensive rats (SHRs: n = 6 intact and 6 OVX) and age-matched Wistar-Kyoto (WKY: n = 5 intact and 4 OVX) controls...
July 2017: Journal of the Renin-angiotensin-aldosterone System: JRAAS
https://www.readbyqxmd.com/read/28744816/ace2-calm3-and-tnni3k-polymorphisms-as-potential-disease-modifiers-in-hypertrophic-and-dilated-cardiomyopathies
#16
Amit Kumar, Bindu Rani, Rajni Sharma, Gurjeet Kaur, Rishikesh Prasad, Ajay Bahl, Madhu Khullar
The marked clinical and genetic heterogeneity seen in hypertrophic (HCM) and dilated cardiomyopathies (DCM) suggests involvement of disease modifiers and environmental factors in the pathophysiology of these diseases. In the current study, we examined association of single nucleotide polymorphisms (SNPs) of three candidate genes, ACE2 (rs6632677), TNNI3K (rs49812611) and CALM3 (rs13477425) with clinical phenotypes of HCM and DCM patients of North Indian ethnicity. Prevalence of ACE2 (7160726 C>G) variant genotypes (CG and GG) was significantly higher in DCM subjects as compared to controls...
July 25, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28713987/angiotensin%C3%A2-1%C3%A2-7-attenuates-caerulein%C3%A2-induced-pancreatic-acinar-cell-apoptosis
#17
Lijian Cui, Ruixia Liu, Chunyun Li, Xiaozheng Yu, Xiaoya Liu, Fei Hou, Cheng Chi, Chenghong Yin, Chao Wang
Extensive apoptosis of pancreatic acinar cells frequently occurs in acute pancreatitis (AP), and has been identified to be closely associated with the decrease of pancreatic parenchymal cells and pancreatic damage. The present study aimed to investigate the possible effect of angiotensin (Ang)‑(1‑7) on caerulein (CAE)‑induced pancreatic acinar cell apoptosis. Mouse pancreatic acinar cancer cells (MPC‑83) were divided into 4 groups: Control group; CAE group; CAE + Ang‑(1‑7) group; and CAE + Ang‑(1‑7) antagonist (A779) group...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28694460/two-bombyx-mori-acetylcholinesterase-genes-influence-motor-control-and-development-in-different-ways
#18
Xinhai Ye, Liwen Yang, David Stanley, Fei Li, Qi Fang
Among its other biological roles, acetylcholinesterase (AChE, EC 3.1.1.7), encoded by two ace in most insects, catalyses the breakdown of acetylcholine, thereby terminating synaptic transmission. ace1 encodes the synaptic enzyme and ace2 has other essential actions in many insect species, such as Chilo suppressalis and Plutella xylostella. The silkworm, Bombyx mori, has been domesticated for more than two thousand years and its aces have no history of pesticide exposure. Here, we investigated the functional differences between two ace genes, BmAce1 and BmAce2, in the silkworm...
July 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28690868/mirna-200c-3p-is-crucial-in-acute-respiratory-distress-syndrome
#19
Qiang Liu, Jianchao Du, Xuezhong Yu, Jun Xu, Fengming Huang, Xiaoyun Li, Cong Zhang, Xiao Li, Jiahui Chang, Daozhen Shang, Yan Zhao, Mingyao Tian, Huijun Lu, Jiantao Xu, Chang Li, Huadong Zhu, Ningyi Jin, Chengyu Jiang
Influenza infection and pneumonia are known to cause much of their mortality by inducing acute respiratory distress syndrome (ARDS), which is the most severe form of acute lung injury (ALI). Angiotensin-converting enzyme 2 (ACE2), which is a negative regulator of angiotensin II in the renin-angiotensin system, has been reported to have a crucial role in ALI. Downregulation of ACE2 is always associated with the ALI or ARDS induced by avian influenza virus, severe acute respiratory syndrome-coronavirus, respiratory syncytial virus and sepsis...
2017: Cell Discovery
https://www.readbyqxmd.com/read/28688122/diminazene-aceturate-prevents-type-1-diabetic-nephropathy-through-increasing-glomerular-ace2-and-at2-receptor-expression
#20
Santosh Kumar Goru, Almesh Kadakol, Vajir Malek, Anuradha Pandey, Nisha Sharma, Anil Bhanudas Gaikwad
BACKGROUND AND PURPOSE: Angiotensin converting enzyme 2 (ACE2) shows its protective actions through degrading Ang II. ACE2 activity and its expression was found to be reduced in glomeruli of diabetic patients as well as in animal models of diabetes. Several recent studies have also showed the potential role of recombinant ACE2 administration in preventing diabetic nephropathy (DN). Hence, we hypothesized that ACE2 activator, diminazene aceturate (DIZE) may be beneficial in preventing DN...
July 8, 2017: British Journal of Pharmacology
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