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Aguiar L, Ferreira J, Matos A, Mascarenhas MR, Menezes Falcão L, Faustino P, Bicho M, Inácio Â. Interplay between glycemia and the genetics of eNOS and ACE for the susceptibility to the onset and development of hypertension on the Portuguese population. GENE REPORTS 2021. [DOI: 10.1016/j.genrep.2020.100975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Bahar L, Sucu N, Eras N, Bagdatoglu OT, Yildirim M. Adrenomedullin expression in aortic artery wall of diabetic rats given alpha lipoic acid. Pharmacol Rep 2020; 72:912-921. [PMID: 32103464 DOI: 10.1007/s43440-020-00082-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 12/18/2019] [Accepted: 12/23/2019] [Indexed: 11/26/2022]
Abstract
BACKGROUND Diabetes mellitus (DM) is a major health problem predisposing to cardiovascular diseases. The aim of this study was to investigate the effects of alpha lipoic acid (ALA) on both the arterial wall of diabetic rats and the adrenomedullin (ADM) gene expression. METHODS Twenty-four Wistar Albino rats were divided into three groups as Control, DM + S, and DM + ALA. For DM model, a single dose of 40 mg/kg streptozotocin, for DM + ALA group, 100 mg/kg/day/4 weeks was administered. Hematoxylin & Eosin (H&E) staining was done and vascular endothelial growth factor (VEGF) was detected by immunohistochemical analysis in the artery wall. Total damage score of vessel wall (endothelial cell damage, media layer smooth muscle cell damage, and internal elastic lamina damage) and H score (immunoreactivity intensity) were calculated. Expression of ADM gene was measured by qRT-PCR. RESULTS In DM + S group, Total damage score of vessel wall were detected by light microscopy. There were statistically significant differences between the groups Control/DM + S and DM + S/DM + ALA in terms of the vessel total damage score and H score (p < 0.005). ADM expression was increased threefold in both DM + S and DM + ALA groups compared to the control group (p < 0.05). CONCLUSIONS ALA may have positive effect on the vessel damage in diabetic rats. However, no significant decrease in ADM expression levels was observed in diabetic rats after ALA administration and we considered that the protective effect of ALA is independent of adrenomedullin. Further studies with different doses and durations of ALA administrations are required to investigate the changes in ADM expression.
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Affiliation(s)
- Leyla Bahar
- Vocational School of Health Services, Mersin University, Ciftlikkoy Campuse, 33343 Yenisehir, Mersin, Turkey.
| | - Nehir Sucu
- Department of Cardiovascular Surgery, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Nazan Eras
- Department of Medical Genetics, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Ozlen Tubay Bagdatoglu
- Vocational School of Health Services, Mersin University, Ciftlikkoy Campuse, 33343 Yenisehir, Mersin, Turkey
| | - Metin Yildirim
- Department of Biochemistry, Faculty of Pharmacy, Mersin University, Mersin, Turkey
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Koyama T, Kuriyama N, Ozaki E, Matsui D, Watanabe I, Takeshita W, Iwai K, Watanabe Y, Nakatochi M, Shimanoe C, Tanaka K, Oze I, Ito H, Uemura H, Katsuura-Kamano S, Ibusuki R, Shimoshikiryo I, Takashima N, Kadota A, Kawai S, Sasakabe T, Okada R, Hishida A, Naito M, Kuriki K, Endoh K, Furusyo N, Ikezaki H, Suzuki S, Hosono A, Mikami H, Nakamura Y, Kubo M, Wakai K. Genetic Variants of RAMP2 and CLR are Associated with Stroke. J Atheroscler Thromb 2017; 24:1267-1281. [PMID: 28904253 PMCID: PMC5742372 DOI: 10.5551/jat.41517] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
AIM Stroke is associated closely with vascular homeostasis, and several complex processes and interacting pathways, which involve various genetic and environmental factors, contribute to the risk of stroke. Although adrenomedullin (ADM) has a number of physiological and vasoprotective functions, there are few studies of the ADM receptor system in humans. The ADM receptor comprises a calcitonin-receptor-like receptor (CLR) and receptor activity-modifying proteins (RAMPs). We analyzed single nucleotide polymorphisms (SNPs) in the RAMP2 and CLR genes to determine their association with stroke in the light of gene-environment interactions. METHODS Using cross-sectional data from the Japan Multi-Institutional Collaborative Cohort Study in the baseline surveys, 14,087 participants from 12 research areas were genotyped. We conducted a hypothesis-based association between stroke prevalence and SNPs in the RAMP2 and CLR genes based on data abstracted from two SNPs in RAMP2 and 369 SNPs in CLR. We selected five SNPs from among the CLR variants (rs77035639, rs3815524, rs75380157, rs574603859, and rs147565266) and one RAMP2 SNP (rs753152), which were associated with stroke, for analysis. RESULTS Five of the SNPs (rs77035639, rs3815524, rs75380157, rs147565266, and rs753152) showed no significant association with obesity, ischemic heart disease, hypertension, dyslipidemia, and diabetes. In the logistic regression analysis, rs574603859 had a lower odds ratio (0.238; 95% confidence interval, 0.076-0.745, adjusted for age, sex, and research area) and the other SNPs had higher odds ratios for association with stroke. CONCLUSIONS This was the first study to investigate the relationships between ADM receptor genes (RAMP2 and CLR) and stroke in the light of gene-environment interactions in human.
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Affiliation(s)
- Teruhide Koyama
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Nagato Kuriyama
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Etsuko Ozaki
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Daisuke Matsui
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Isao Watanabe
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Wakiko Takeshita
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Komei Iwai
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Yoshiyuki Watanabe
- Department of Epidemiology for Community Health and Medicine, Kyoto Prefectural University of Medicine
| | - Masahiro Nakatochi
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital
| | - Chisato Shimanoe
- Department of Preventive Medicine, Faculty of Medicine, Saga University
| | - Keitaro Tanaka
- Department of Preventive Medicine, Faculty of Medicine, Saga University
| | - Isao Oze
- Division of Molecular and Clinical Epidemiology, Aichi Cancer Center Research Institute
| | - Hidemi Ito
- Division of Molecular and Clinical Epidemiology, Aichi Cancer Center Research Institute
| | - Hirokazu Uemura
- Department of Preventive Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Sakurako Katsuura-Kamano
- Department of Preventive Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Rie Ibusuki
- Department of International Islands and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences
| | - Ippei Shimoshikiryo
- Department of International Islands and Community Medicine, Kagoshima University Graduate School of Medical and Dental Sciences
| | | | - Aya Kadota
- Department of Public Health, Shiga University of Medical Science.,Center for Epidemiologic Research in Asia, Shiga University of Medical Science
| | - Sayo Kawai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Tae Sasakabe
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Rieko Okada
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Asahi Hishida
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Mariko Naito
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
| | - Kiyonori Kuriki
- Laboratory of Public Health, School of Food and Nutritional Sciences, University of Shizuoka
| | - Kaori Endoh
- Laboratory of Public Health, School of Food and Nutritional Sciences, University of Shizuoka
| | - Norihiro Furusyo
- Department of Environmental Medicine and Infectious Disease, Kyushu University
| | - Hiroaki Ikezaki
- Department of Environmental Medicine and Infectious Disease, Kyushu University
| | - Sadao Suzuki
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences
| | - Akihiro Hosono
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences
| | - Haruo Mikami
- Cancer Prevention Center, Chiba Cancer Center Research Institute
| | - Yohko Nakamura
- Cancer Prevention Center, Chiba Cancer Center Research Institute
| | - Michiaki Kubo
- Laboratory for Genotyping Development, Center for Integrative Medical Sciences, RIKEN
| | - Kenji Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine
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Gupta S, Jhawat V. Induction of Type 2 Diabetes Mellitus with Antihypertensive Therapy: Is There Any Role of Alpha Adducin, ACE, and IRS-1 Gene? Value Health Reg Issues 2017. [PMID: 28648322 DOI: 10.1016/j.vhri.2016.10.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Martínez-Herrero S, Martínez A. Adrenomedullin regulates intestinal physiology and pathophysiology. Domest Anim Endocrinol 2016; 56 Suppl:S66-83. [PMID: 27345325 DOI: 10.1016/j.domaniend.2016.02.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 02/11/2016] [Accepted: 02/15/2016] [Indexed: 02/08/2023]
Abstract
Adrenomedullin (AM) and proadrenomedullin N-terminal 20 peptide (PAMP) are 2 biologically active peptides produced by the same gene, ADM, with ubiquitous distribution and many physiological functions. Adrenomedullin is composed of 52 amino acids, has an internal molecular ring composed by 6 amino acids and a disulfide bond, and shares structural similarities with calcitonin gene-related peptide, amylin, and intermedin. The AM receptor consists of a 7-transmembrane domain protein called calcitonin receptor-like receptor in combination with a single transmembrane domain protein known as receptor activity-modifying protein. Using morphologic techniques, it has been shown that AM and PAMP are expressed throughout the gastrointestinal tract, being specially abundant in the neuroendocrine cells of the gastrointestinal mucosa; in the enterochromaffin-like and chief cells of the gastric fundus; and in the submucosa of the duodenum, ileum, and colon. This wide distribution in the gastrointestinal tract suggests that AM and PAMP may act as gut hormones regulating many physiological and pathologic conditions. To date, it has been proven that AM and PAMP act as autocrine/paracrine growth factors in the gastrointestinal epithelium, play key roles in the protection of gastric mucosa from various kinds of injury, and accelerate healing in diseases such as gastric ulcer and inflammatory bowel diseases. In addition, both peptides are potent inhibitors of gastric acid secretion and gastric emptying; they regulate the active transport of sugars in the intestine, regulate water and ion transport in the colon, modulate colonic bowel movements and small-intestine motility, improve endothelial barrier function, and stabilize circulatory function during gastrointestinal inflammation. Furthermore, AM and PAMP are antimicrobial peptides, and they contribute to the mucosal host defense system by regulating gut microbiota. To get a formal demonstration of the effects that endogenous AM and PAMP may have in gut microbiota, we developed an inducible knockout of the ADM gene. Using this model, we have shown, for the first time, that lack of AM/PAMP leads to changes in gut microbiota composition in mice. Further studies are needed to investigate whether this lack of AM/PAMP may have an impact in the development and/or progression of intestinal diseases through their effect on microbiota composition.
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Affiliation(s)
- S Martínez-Herrero
- Oncology Area, Center for Biomedical Research of La Rioja (CIBIR), Logroño, La Rioja 26006, Spain
| | - A Martínez
- Oncology Area, Center for Biomedical Research of La Rioja (CIBIR), Logroño, La Rioja 26006, Spain.
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Wong HK, Tang F, Cheung TT, Cheung BMY. Adrenomedullin and diabetes. World J Diabetes 2014; 5:364-371. [PMID: 24936257 PMCID: PMC4058740 DOI: 10.4239/wjd.v5.i3.364] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 11/19/2013] [Accepted: 05/08/2014] [Indexed: 02/05/2023] Open
Abstract
Adrenomedullin (ADM) is a peptide hormone widely expressed in different tissues, especially in the vasculature. Apart from its vasodilatatory and hypotensive effect, it plays multiple roles in the regulation of hormonal secretion, glucose metabolism and inflammatory response. ADM regulates insulin balance and may participate in the development of diabetes. The plasma level of ADM is increased in people with diabetes, while in healthy individuals the plasma ADM concentration remains low. Plasma ADM levels are further increased in patients with diabetic complications. In type 1 diabetes, plasma ADM level is correlated with renal failure and retinopathy, while in type 2 diabetes its level is linked with a wider range of complications. The elevation of ADM level in diabetes may be due to hyperinsulinemia, oxidative stress and endothelial injury. At the same time, a rise in plasma ADM level can trigger the onset of diabetes. Strategies to reduce ADM level should be explored so as to reduce diabetic complications.
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Lenhart P, Nguyen T, Wise A, Caron K, Herring A, Stuebe A. Adrenomedullin signaling pathway polymorphisms and adverse pregnancy outcomes. Am J Perinatol 2014; 31:327-34. [PMID: 23797962 PMCID: PMC3982866 DOI: 10.1055/s-0033-1349345] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVE Reduced maternal plasma levels of the peptide vasodilator adrenomedullin have been associated with adverse pregnancy outcomes. We measured the extent to which genetic polymorphisms in the adrenomedullin signaling pathway are associated with birth weight, glycemic regulation, and preeclampsia risk. STUDY DESIGN We genotyped 1,353 women in the Pregnancy, Infection, and Nutrition Postpartum Study for 37 ancestry-informative markers and for single-nucleotide polymorphisms in adrenomedullin (ADM), complement factor H variant (CFH), and calcitonin receptor-like receptor (CALCRL). We used linear and logistic regression to model the association between genotype and birth weight, glucose loading test (GLT) results, preeclampsia, and gestational diabetes (GDM). All models were adjusted for pregravid body mass index, maternal age, and probability of Yoruban ancestry. p values of < 0.05 were considered statistically significant. RESULTS Among Caucasian women, ADM rs57153895, a proxy for rs11042725, was associated with reduced birth weight z-score. Among African-American women, ADM rs57153895 was associated with increased birth weight z-score. Two CALCRL variants were associated with GDM risk. CFH rs1061170 was associated with higher GLT results and increased preeclampsia risk. CONCLUSION Consistent with studies of plasma adrenomedullin and adverse pregnancy outcomes, we found associations between variants in the adrenomedullin signaling pathway and birth weight, glycemic regulation, and preeclampsia.
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Affiliation(s)
- Patricia Lenhart
- Department of Cell Biology and Physiology, The University of North Carolina, Chapel Hill, North Carolina
| | - Thutrang Nguyen
- Division of Genetics and Endocrinology, Children's Hospital of Boston, Harvard Medical School, Boston, Massachusetts
| | - Alison Wise
- Department of Biostatistics, Gillings School of Global Public Health, The University of North Carolina, Chapel Hill, North Carolina
| | - Kathleen Caron
- Department of Cell Biology and Physiology, The University of North Carolina, Chapel Hill, North Carolina
| | - Amy Herring
- Department of Biostatistics, Gillings School of Global Public Health, The University of North Carolina, Chapel Hill, North Carolina
| | - Alison Stuebe
- Department of Obstetrics and Gynecology, University of North Carolina School of Medicine, Chapel Hill, North Carolina
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Wong HK, Ong KL, Leung RYH, Lam TH, Thomas GN, Lam KSL, Cheung BMY. A single nucleotide polymorphism of interleukin-6 gene is related to plasma adrenomedullin levels. Clin Endocrinol (Oxf) 2013; 79:504-9. [PMID: 23088295 DOI: 10.1111/cen.12078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 08/23/2012] [Accepted: 10/15/2012] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Elevated plasma adrenomedullin (ADM) levels are associated with cardiovascular diseases. Single nucleotide polymorphisms (SNPs) in the gene encoding ADM (ADM) are associated with plasma ADM levels. The presence of a nuclear factor for interleukin-6 (IL-6) expression binding site in the promoter region of the ADM gene suggests a possible relationship between the expression of the ADM and IL-6. Therefore, we investigated whether plasma ADM levels are related to SNPs in the gene encoding IL-6 (IL6). METHODS Plasma ADM levels were measured in 476 subjects in the Hong Kong Cardiovascular Risk Factor Prevalence Study-2 (CRISPS2). The subjects were genotyped for three tagging SNPs in the IL6 gene. RESULTS The minor allele frequencies of the IL6 SNPs rs17147230, rs1800796 and rs2069837 were 41·8%, 20·0% and 15·4%, respectively. The tagging SNP, rs17147230, was associated with plasma ADM levels after adjusting for age and sex (β=-0·096, P = 0·034). The association was significant in women (β=-0·115, P = 0·021) but not in men. Among all subjects, plasma ADM levels decreased with an increasing number of minor alleles of rs17147230 in multivariate analysis (P = 0·034). Compared to subjects with the AA genotype, subjects with the TT genotype had plasma ADM levels 12·8% lower (95% CI: 0·6-23·5%, P = 0·041). Haplotype analysis demonstrated a significant association of the haplotype ACA with plasma ADM levels in women (P < 0·05). CONCLUSION Plasma ADM levels are related to the SNP rs17147230 in IL6 gene. The effect of the polymorphism on inflammation and cardiovascular disease remains to be determined.
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Affiliation(s)
- Hoi Kin Wong
- Department of Medicine, University of Hong Kong, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong
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Martínez-Herrero S, Martínez A. Cancer protection elicited by a single nucleotide polymorphism close to the adrenomedullin gene. J Clin Endocrinol Metab 2013; 98:E807-10. [PMID: 23450059 DOI: 10.1210/jc.2012-4193] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT The risk of developing cancer is regulated by genetic variants, including polymorphisms. Characterizing such variants may help in developing protocols for personalized medicine. OBJECTIVE Adrenomedullin is a regulatory peptide involved in cancer promotion and progression. Carriers of a single nucleotide polymorphism (SNP) in the proximity of the adrenomedullin gene have lower levels of circulating peptide. The aim of the present work was to investigate whether carriers of this SNP (rs4910118) are protected against cancer. DESIGN This was a retrospective study. DNA samples were obtained from the Carlos III DNA National Bank (University of Salamanca, Salamanca, Spain). SETTING Samples represent a variety of donors and patients from Spain. PATIENTS OR OTHER PARTICIPANTS DNA from patients with breast cancer (n = 238), patients with lung cancer (n = 348), patients with cardiac insufficiency (n = 474), and healthy donors of advanced age (n = 500) was used. INTERVENTIONS All samples were genotyped using double-mismatch PCR, and confirmation was achieved by direct sequencing. MAIN OUTCOME MEASURES The minor allele frequency was calculated in all groups. The Pearson χ(2) was used to compare SNP frequencies. RESULTS Of 1560 samples, 14 had the minor allele, with a minor allele frequency in healthy donors of 0.90%. Patients with cancer had a statistically significantly lower frequency than healthy donors (odds ratio = 0.216, 95% confidence interval = 0.048-0.967, P = .028). CONCLUSIONS Carriers of the minor allele have a 4.6-fold lower risk of developing cancer than homozygotes for the major allele. Knowledge of the rs4910118 genotype may be useful for stratifying patients in clinical trials and for designing prevention strategies.
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Aggarwal G, Ramachandran V, Javeed N, Arumugam T, Dutta S, Klee GG, Klee EW, Smyrk TC, Bamlet W, Han JJ, Rumie Vittar NB, De Andrade M, Mukhopadhyay D, Petersen GM, Fernandez-Zapico ME, Logsdon CD, Chari ST. Adrenomedullin is up-regulated in patients with pancreatic cancer and causes insulin resistance in β cells and mice. Gastroenterology 2012; 143:1510-1517.e1. [PMID: 22960655 PMCID: PMC3787599 DOI: 10.1053/j.gastro.2012.08.044] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Revised: 08/14/2012] [Accepted: 08/30/2012] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS New-onset diabetes in patients with pancreatic cancer is likely to be a paraneoplastic phenomenon caused by tumor-secreted products. We aimed to identify the diabetogenic secretory product(s) of pancreatic cancer. METHODS Using microarray analysis, we identified adrenomedullin as a potential mediator of diabetes in patients with pancreatic cancer. Adrenomedullin was up-regulated in pancreatic cancer cell lines, in which supernatants reduced insulin signaling in beta cell lines. We performed quantitative reverse-transcriptase polymerase chain reaction and immunohistochemistry on human pancreatic cancer and healthy pancreatic tissues (controls) to determine expression of adrenomedullin messenger RNA and protein, respectively. We studied the effects of adrenomedullin on insulin secretion by beta cell lines and whole islets from mice and on glucose tolerance in pancreatic xenografts in mice. We measured plasma levels of adrenomedullin in patients with pancreatic cancer, patients with type 2 diabetes mellitus, and individuals with normal fasting glucose levels (controls). RESULTS Levels of adrenomedullin messenger RNA and protein were increased in human pancreatic cancer samples compared with controls. Adrenomedullin and conditioned media from pancreatic cell lines inhibited glucose-stimulated insulin secretion from beta cell lines and islets isolated from mice; the effects of conditioned media from pancreatic cancer cells were reduced by small hairpin RNA-mediated knockdown of adrenomedullin. Conversely, overexpression of adrenomedullin in mice with pancreatic cancer led to glucose intolerance. Mean plasma levels of adrenomedullin (femtomoles per liter) were higher in patients with pancreatic cancer compared with patients with diabetes or controls. Levels of adrenomedullin were higher in patients with pancreatic cancer who developed diabetes compared those who did not. CONCLUSIONS Adrenomedullin is up-regulated in patients with pancreatic cancer and causes insulin resistance in β cells and mice.
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Affiliation(s)
- Gaurav Aggarwal
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | | | - Naureen Javeed
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | | | - Shamit Dutta
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - George G. Klee
- Department of Laboratory Medicine and Pathology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Eric W. Klee
- Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Thomas C. Smyrk
- Department of Laboratory Medicine and Pathology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - William Bamlet
- Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Jing Jing Han
- Schulze Center for Novel Therapeutics, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Natalia B. Rumie Vittar
- Schulze Center for Novel Therapeutics, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Mariza De Andrade
- Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Debabrata Mukhopadhyay
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Gloria M. Petersen
- Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Martin E. Fernandez-Zapico
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, Rochester, Minnesota
- Schulze Center for Novel Therapeutics, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Craig D. Logsdon
- Department of Cancer Biology, UT MD Anderson Cancer Center, Houston, Texas
| | - Suresh T. Chari
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, Rochester, Minnesota
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Lenhart PM, Caron KM. Adrenomedullin and pregnancy: perspectives from animal models to humans. Trends Endocrinol Metab 2012; 23:524-32. [PMID: 22425034 PMCID: PMC3380178 DOI: 10.1016/j.tem.2012.02.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 02/17/2012] [Accepted: 02/22/2012] [Indexed: 01/22/2023]
Abstract
A healthy pregnancy requires strict coordination of genetic, physiologic and environmental factors. The relatively common incidence of infertility and pregnancy complications has resulted in increased interest in understanding the mechanisms that underlie normal versus abnormal pregnancy. The peptide hormone adrenomedullin (AM) has recently been the focus of some exciting breakthroughs in the pregnancy field. Supported by mechanistic studies in genetic animal models, there continues to be a growing body of evidence demonstrating the importance of AM protein levels in a variety of human pregnancy complications. With more extensive mechanistic studies and improved consistency in clinical measurements of AM, there is great potential for the development of AM as a clinically-relevant biomarker in pregnancy and pregnancy complications.
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Affiliation(s)
- Patricia M. Lenhart
- Department of Cell & Molecular Physiology, The University of North Carolina, Chapel Hill, North Carolina, USA 27599
| | - Kathleen M. Caron
- Department of Cell & Molecular Physiology, The University of North Carolina, Chapel Hill, North Carolina, USA 27599
- Corresponding Author: Kathleen M. Caron, Department of Cell and Molecular Physiology, CB #7545, 6340B MBRB 111 Mason Farm Road, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599. Tel: (919) 966-5215, FAX: (919) 966-5230.
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Abstract
Diabetes and hypertension frequently occur together. There is substantial overlap between diabetes and hypertension in etiology and disease mechanisms. Obesity, inflammation, oxidative stress, and insulin resistance are thought to be the common pathways. Recent advances in the understanding of these pathways have provided new insights and perspectives. Physical activity plays an important protective role in the two diseases. Knowing the common causes and disease mechanisms allows a more effective and proactive approach in their prevention and treatment.
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Affiliation(s)
- Bernard M. Y. Cheung
- Department of Medicine, University of Hong Kong, Pokfulam, Hong Kong
- Department of Medicine, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong, China
| | - Chao Li
- Department of Medicine, University of Hong Kong, Pokfulam, Hong Kong
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Cheung BMY, Ong KL, Tso AWK, Leung RYH, Cherny SS, Sham PC, Lam TH, Lam KSL. Plasma adrenomedullin level is related to a single nucleotide polymorphism in the adrenomedullin gene. Eur J Endocrinol 2011; 165:571-7. [PMID: 21798961 DOI: 10.1530/eje-11-0513] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Adrenomedullin (ADM) plays an important role in inflammation and is a marker of future cardiovascular events. We studied common single nucleotide polymorphisms (SNPs) in the gene encoding ADM and their relationship with the plasma levels of ADM and other inflammatory markers. DESIGN AND METHODS Plasma ADM, interleukin 6 (IL6), fibrinogen, and C-reactive protein (CRP) were measured in 476 subjects from the population-based Hong Kong Cardiovascular Risk Factor Prevalence Study-2. Four tag SNPs in ADM were genotyped. RESULTS Plasma ADM level increased with decreasing plasma IL6 level (β=-0.116, P=0.014). Plasma ADM level was not related to plasma levels of CRP and fibrinogen, and other clinical characteristics, except age (P=0.049). The four SNPs, rs3814700, rs11042725, rs34354539, and rs4910118, had minor allele frequencies of 31.1, 28.7, 33.8, and 23.4% respectively. Carriers of the minor allele of rs4910118 had a mean plasma ADM level that was 10.5% (95% confidential interval: 2.5-17.8%) lower than the non-carriers (β=-0.115, P=0.011). Haplotype analysis revealed a similar significant association with plasma ADM (P=0.040). In multivariate analysis, the presence of the minor allele of rs4910118, but not plasma IL6, was independently associated with plasma ADM (P=0.010). CONCLUSION Plasma ADM correlates with plasma IL6 level, consistent with its role in inflammation. It is related to an SNP common in Chinese, independent of other covariates. ADM genotype should be included in future studies of cardiovascular risk prediction.
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Affiliation(s)
- Bernard M Y Cheung
- Department of Medicine, Research Centre of Heart, Brain, Hormone and Healthy Aging, School of Public Health, University of Hong Kong, Hong Kong, People's Republic of China.
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