1
|
Alarslan P, Unal Kocabas G, Demir I, Guler A, Bozkaya G, Aslanipour B, Calan M. Increased urocortin 3 levels are associated with the risk of having type 2 diabetes mellitus. J Diabetes 2020; 12:474-482. [PMID: 31893569 DOI: 10.1111/1753-0407.13020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 12/07/2019] [Accepted: 12/29/2019] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Urocortin 3 (UCN3) is a peptide hormone playing a pivotal role in glucose and lipid metabolisms. However, its clinical implications remain unclear. Our aims were to investigate the altered levels of UCN3 in newly diagnosed type 2 diabetes mellitus (nT2DM) patients in comparison to subjects with normal glucose tolerance (NGT) and to determine the presence of any possible link between UCN3 levels and metabolic parameters. METHODS Eighty nT2DM and 80 age-, body mass index (BMI)-, and gender-matched NGT subjects were enrolled into this case-control study. The circulating UCN3 levels were measured using the enzyme-linked immunoabsorbent assay (ELISA). Metabolic parameters of enrolled subjects were also determined. A standard 75-g 2-hour oral glucose tolerance test was used for diagnosis of type 2 diabetes mellitus (T2DM). RESULTS UCN3 levels were higher in subjects with nT2DM than in controls (115.64 ± 39.26 vs 86.16 ± 22.81 pg/mL, P < .001). UCN3 levels were increased in subjects with metabolic syndrome compared to subjects without metabolic syndrome in both nT2DM and NGT groups. UCN3 levels showed a positive correlation with BMI in both groups. Moreover, UCN3 levels were positively and independently associated with insulin, fasting blood glucose, insulin resistance, 2-hour plasma glucose, glycosylated hemoglobin, and triglycerides, whereas UCN3 levels were negatively and independently associated with high-density lipoprotein cholesterol. According to logistic regression analysis, increased risk of T2DM and metabolic syndrome were parallel with the highest elevated levels of UCN3. CONCLUSIONS Increased levels of UCN3 are associated with unfavorable metabolic profiles in T2DM, indicating a potential role of UCN3 in glucose and lipid metabolisms in T2DM.
Collapse
Affiliation(s)
- Pınar Alarslan
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Izmir Bozyaka Training and Research Hospital, Izmir, Turkey
| | - Gokcen Unal Kocabas
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Izmir Bozyaka Training and Research Hospital, Izmir, Turkey
| | - Ismail Demir
- Department of Internal Medicine, Izmir Bozyaka Training and Research Hospital, Izmir, Turkey
| | - Aslı Guler
- Department of Family Physician, Izmir Bozyaka Training and Research Hospital, Izmir, Turkey
| | - Giray Bozkaya
- Department of Clinical Biochemistry, Izmir Bozyaka Training and Research Hospital, Izmir, Turkey
| | - Behnaz Aslanipour
- Department of Biotechnology, Graduate School of Natural and Applied Sciences, Ege University, Izmir, Turkey
| | - Mehmet Calan
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Izmir Bozyaka Training and Research Hospital, Izmir, Turkey
| |
Collapse
|
2
|
Abstract
Accurate noninvasive diagnostic tests for endometriosis are still missing. This study evaluated the predictive value of the neuropeptide urocortin 1 (Ucn1) to detect pelvic endometriosis in symptomatic women. We enrolled prospectively 97 consecutive women submitted to gynecologic laparoscopy for chronic or acute pelvic pain, infertility or adnexal mass. Preoperative blood samples were assayed for Ucn1 using enzyme immunoassay. Patients with endometriosis had higher plasma Ucn1 levels compared to patients with no lesions (median 59 vs. 34 pg/ml, p < .01, Dunn's test). Elevated plasma Ucn1 levels were found among all endometriosis phenotypes (superficial peritoneal lesions, ovarian endometrioma, and deep infiltrating endometriosis, p < .05 vs. no lesions). Receiver operating characteristics curve analysis identified plasma Ucn1 > 46 pg/mL as the best cutoff point to detect endometriosis vs. no lesions, with 76% sensitivity and 88% specificity (area under the curve [AUC] 0.827, 95% confidence interval [CI] 0.695 - 0.959), but no cutoff could accurately distinguish endometriosis from other pathological conditions (AUC 0.593 [95% CI 0.474 - 0.711]). In women with chronic pelvic pain, infertility, or both symptoms, the probability of endometriosis (positive predictive value) increased consistently with the increase of plasma Ucn1 levels. The present findings suggest that high plasma Ucn1 levels increase the likelihood of endometriosis in symptomatic women.
Collapse
Affiliation(s)
- Laura M Maia
- a Department of Obstetrics and Gynecology , Universidade Federal de Minas Gerais , Belo Horizonte , Brazil
| | - Ana L Rocha
- a Department of Obstetrics and Gynecology , Universidade Federal de Minas Gerais , Belo Horizonte , Brazil
| | - Helen L Del Puerto
- b Department of Pathology , Universidade Federal de Minas Gerais , Belo Horizonte , Brazil
| | - Felice Petraglia
- c Department of Biomedical, Experimental and Clinical Sciences, Division of Obstetrics and Gynecology , University of Florence, Careggi University Hospital , Florence , Italy
| | - Fernando M Reis
- a Department of Obstetrics and Gynecology , Universidade Federal de Minas Gerais , Belo Horizonte , Brazil
| |
Collapse
|
3
|
Abstract
In this study, we aimed to compare the serum urocortin-2 (UCN2) levels in women with polycystic ovary syndrome (PCOS) and healthy women. Thirty-eight patients with PCOS and 41 healthy women were included in the study whose age and BMI matched. The fasting serum glucose, insulin, free testosterone, hs-CRP and UCN2 levels of the all participants were examined. HOMA-IR formula was used in order to calculate the insulin resistance. Circulating UCN2 levels were significantly elevated in women with PCOS compared with controls (142.93 ± 59.48 versus 98.56 ± 65.01 pg/ml, p = 0.002). FBG, serum insulin, hs-CRP and HOMA-IR levels were found to be increased in women with PCOS. There was a positive correlation between UCN2 and free-testosterone in only PCOS group (r = 0.235, p = 0.027). Multivariate logistic regression analyses revealed that the odds ratio for PCOS was 2.31 for patients in the highest quartile of UCN2 compared with those in the lowest quartile (OR = 2.31, 95% CI = 1.88-2.83, p=0.021). Multiple linear regression analysis revealed that HOMA-IR, hs-CRP and free-testosterone independently predicted UCN2 levels (p < 0.05). UCN2 levels were significantly higher in PCOS cases when compared to control group. UCN2 is thought to be effective on pathophysiology of PCOS by paracrine and autocrine pathways.
Collapse
Affiliation(s)
- Muzaffer Temur
- a Department of Obstetrics and Gynecology , Manisa Merkezefendi Hospital , Manisa , Turkey
- b Department of Obstetrics and Gynecology , Sakarya University Faculty of Medicine , Sakarya , Turkey
| | - Özgür Yılmaz
- c Manisa Merkezefendi State Hospital Department of Obstetrics and Gynecology , Manisa , Turkey
| | - Saliha Aksun
- d Department of Medical Biochemistry İzmir , İzmir Katipcelebi University Medical School , İzmir , Turkey
| | - Mehmet Calan
- e Department of Endocrinology İzmir , İzmir Bozyaka Education and Research Hospital , İzmir , Turkey
| | - Pelin Özün Özbay
- f Aydın Private Ege Liva Hospital Department of Obstetrics and Gynecology Aydın , Aydın , Turkey , and
| | - Serkan Kumbasar
- g Department of Obstetrics and Gynecology , Sakarya University School of Medicine, Sakarya Research and Education Hospital , Sakarya , Turkey
| | - Erman Sever
- g Department of Obstetrics and Gynecology , Sakarya University School of Medicine, Sakarya Research and Education Hospital , Sakarya , Turkey
| |
Collapse
|
4
|
Temur M, Yilmaz Ö, Aksun S, Özün Özbay P, Calan M, Küme T, Karakulak M, Korkmaz HA. Increased circulating urocortin-3 levels is associated with polycystic ovary syndrome. Gynecol Endocrinol 2016; 32:218-22. [PMID: 26488073 DOI: 10.3109/09513590.2015.1110135] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This study was aimed to compare serum urocortin-3 (UCN3) levels in women with polycystic ovary syndrome (PCOS) and healthy women, and establish what role UCN3 levels play in PCOS. Fifty-two patients with PCOS and 55 healthy women were included in the study, matched for age and body mass index. Fasting blood glucose (FBG), insulin, hs-CRP, UCN3 and free-testosterone levels of the all participants were measured. HOMA-IR was used to calculate the insulin resistance. Circulating UCN3 levels were significantly increased in women with PCOS than in control subjects (54.49 ± 5.77 versus 51.28 ± 5.86 pmol/l, p = 0.005). Serum insulin, hs-CRP and HOMA-IR levels were higher in women with PCOS than in control group. UCN3 levels positively correlated with hs-CRP in PCOS group (r = 0.391, p = 0.004). Receiver operating characteristic (ROC) curve analysis showed that the area under the ROC curves were 0.732 (95% CI 0.634-0.830, p < 0.001) for UCN3 levels. The optimal cut-off value of UCN3 for detecting PCOS was ≥51.46 pmol/l, at which the sensitivity was 75% and specificity was 68%. Our results suggest that there is a potential link between PCOS and UCN3 levels. The results of this study support the presence of increased UCN3 levels for the association of inflammation with PCOS.
Collapse
Affiliation(s)
- Muzaffer Temur
- a Department of Obstetrics and Gynecology , Manisa Merkezefendi State Hospital , Manisa , Turkey
| | - Özgür Yilmaz
- b Department of Obstetrics and Gynecology , Manisa Merkezefendi State Hospital and Manisa Akhisar State Hospital , Manisa , Turkey
| | - Saliha Aksun
- c Department of Medical Biochemistry , İzmir Katipcelebi University Medical School , İzmir , Turkey
| | - Pelin Özün Özbay
- d Department of Obstetrics and Gynecology , Aydın Obstetrics and Pediatrics Hospital , Aydın , Turkey
| | - Mehmet Calan
- e Department of Endocrinology , İzmir Bozyaka Education and Research Hospital , İzmir , Turkey
| | - Tuncay Küme
- f Department of Medical Biochemistry , Dokuz Eylul University Medical School , Izmir , Turkey
| | - Murat Karakulak
- g Department of Obstetrics and Gynecology , Silivri State Hospital , İstanbul , Turkey , and
| | - Hüseyin Anıl Korkmaz
- h Division of Pediatric Endocrinology , Dr Behçet Uz Children Research and Training Hospital , İzmir , Turkey
| |
Collapse
|
5
|
Zhang L, Sun Q, Wang XD, Zhou F, Gao BX. [Decreased maternal plasma urocortin level in intrahepatic cholestasis of pregnancy]. Sichuan Da Xue Xue Bao Yi Xue Ban 2015; 46:263-266. [PMID: 25924442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To measure the plasma level of urocortin and the placenta expression of its receptor corticotropin-releasing hormone receptor (CRHR)-2 in the patients with intrahepatic cholestasis of pregnancy (ICP). METHODS This study enrolled 20 patients with ICP and 20 normal pregnant women (control group). The plasma level of urocortin at different gestational age (34-37 weeks) was measured by enzyme-linked immunosorbent assay (ELISA), and the placenta expression of CRHR-2 was investigated by immunohistochemical technique. RESULTS The plasma urocortin levels at different gestational age in normal pregnany were (79.47 +/- 11.35) pg/mL at 34 weeks, (83.00 +/- 12.67) pg/mL at 35 weeks, (80.28 +/- 11.48) pg/mL at 36 weeks, and (84.24 +/- 13.62) pg/mL at 37 weeks, respectively. No upward tendency was observed along with the increase of gestational age (F= 0.67, P>0.05). Compared with normal pregnany, ICP patients had novel down trend of the plasma urocortin levels (F = 6.78, P<0.05), which were (68.53 +/- 16.95) pg/mL at 34 weeks, (64. 19+22. 50) pg/mL at 35 weeks, (50.06 +/- 13.98) pg/mL at 36 weeks, (47.91 +/- 15.65) pg/mL at 37 weeks, CRHR-2 staining was found in syncytiotrophoblast and feto-placental vascular endothelium cells of placenta, and there was no statistical differences found for integral optical density value of CRHR-2 staining between control (101.09 +/- 27.21) and ICP (111.83 +/- 35.02) groups (P>0.05). CONCLUSION The urocortin-mediated stress compensation insufficiency may be involved in the fetal outcomes in ICP.
Collapse
|
6
|
Abstract
Urocortin 2 (Ucn2) is a member of the corticotropin-releasing factor peptide family and is expressed by various tissues, including reproductive tissues such as the uterus, ovary, and placenta. However, the regulatory mechanisms of Ucn2 expression and the physiological significance of Ucn2 in these tissues remain unclear. We previously showed that passive immunization of immature female rats by i.p. injection of anti-Ucn2 IgG induces earlier onset of puberty. Therefore, this study was designed to clarify the site and regulatory mechanisms of Ucn2 expression in the uterus. Expression levels of Ucn2 mRNA in the uterus were higher in immature (2- and 4-week-old) and aged (17-month-old) rats than in mature (9-week-old) rats in the proestrus phase. In 9-week-old rats, mRNA expression levels and contents in the uterus were lower in the proestrus phase than in the diestrus phase, while plasma Ucn2 concentrations did not differ between the two phases. Ucn2-like immunoreactivitiy was detected in the endometrial gland epithelial cells of the uterus. S.c. injection of estradiol benzoate or an estrogen receptor α (ERα) agonist significantly reduced mRNA expression levels and contents of Ucn2 in the uterus when compared with vehicle-injected ovariectomized rats. By contrast, estradiol benzoate increased Ucn2 mRNA expression levels in the lung. Thus, estrogens downregulate Ucn2 expression in the uterus in a tissue-specific manner, and Ucn2 may play a role in the regulatory mechanisms of maturation of the uterus through ERα and estrous cycle.
Collapse
Affiliation(s)
- Kenichiro Watanabe
- Departments of Obstetrics and Gynecology Physiology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | | | | | | | | |
Collapse
|
7
|
Moxon JV, Emeto TI, Golledge J. Further evidence to support a role for urocortin 2 in heart failure. Anadolu Kardiyol Derg 2012; 12:121-122. [PMID: 22281791 DOI: 10.5152/akd.2012.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
|
8
|
Emeto TI, Moxon JV, Rush C, Woodward L, Golledge J. Relevance of urocortins to cardiovascular disease. J Mol Cell Cardiol 2011; 51:299-307. [PMID: 21689660 DOI: 10.1016/j.yjmcc.2011.06.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2011] [Revised: 05/26/2011] [Accepted: 06/02/2011] [Indexed: 11/19/2022]
Abstract
Acquired cardiovascular diseases such as coronary heart disease, peripheral artery disease and related vascular problems contribute to more than one-third of worldwide morbidity and mortality. In many instances, particularly in the under developed world, cardiovascular diseases are diagnosed at a late stage limiting the scope for improving outcomes. A range of therapies already exist for established cardiovascular disease, although there is significant interest in further understanding disease pathogenesis in order to improve diagnosis and achieve primary and secondary therapeutic goals. The urocortins are a group of recently defined peptide members of the corticotrophin-releasing factor family. Previous pre-clinical work and human association studies suggest that urocortins have potential to exert some beneficial and other detrimental effects on the heart and major blood vessels. More current evidence however favours beneficial effects of urocortins, for example these peptides have been shown to inhibit production of reactive oxygen species and vascular cell apoptosis, and thus may have potential to antagonise the progression of cardiovascular disease. This review summarises published data on the potential role of urocortins in cardiovascular disease.
Collapse
Affiliation(s)
- Theophilus I Emeto
- Vascular Biology Unit, School of Medicine and Dentistry, James Cook University, Townsville, QLD 4811, Australia
| | | | | | | | | |
Collapse
|
9
|
|
10
|
Shibasaki T. [Urocortin]. Nihon Rinsho 2010; 68 Suppl 7:637-639. [PMID: 20963898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
|
11
|
Veloso GF, Ohad DG, Francis AJ, Vaughan JM, Brownstein DG, Culshaw GJ, Vale WW, French AT, Jamieson PM. Expression of urocortin peptides in canine myocardium and plasma. Vet J 2010; 188:318-24. [PMID: 20554462 DOI: 10.1016/j.tvjl.2010.05.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2010] [Revised: 03/21/2010] [Accepted: 05/16/2010] [Indexed: 11/20/2022]
Abstract
Urocortin (Ucn) peptides are the endogenous ligands for the corticotropin-releasing factor type 2 receptor (CRFR2). They have potentially important roles in cardiovascular physiology in health and disease, and show promise as therapeutics for congestive heart failure. Analysis of canine heart tissue showed mRNA expression of Ucn 1, Ucn 3 and CRFR2 in all heart chambers. Immunohistochemistry also demonstrated Ucns 1 and 3 expression in cardiomyocytes. To assess the potential usefulness of circulating Ucns as markers of heart disease, plasma samples from 45 dogs with cardiac disease and 15 controls were analysed by radioimmunoassay. Both Ucns 1 and 3 were measurable but the presence of cardiac disease did not alter their concentrations. Therefore, whilst Ucns are expressed in canine myocardium (where they may play a role in the endogenous neurohumoral response to cardiac disease or failure) they do not appear to be sensitive biomarkers of cardiac disease in our canine patient population.
Collapse
Affiliation(s)
- Gemma Fraga Veloso
- Royal (Dick) School of Veterinary Studies, University of Edinburgh Hospital for Small Animals, Easter Bush Veterinary Centre, Roslin EH25 9RG, UK
| | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Gruson D, Ahn SA, Ketelslegers JM, Rousseau MF. Circulating levels of stress associated peptide Urocortin in heart failure patients. Peptides 2010; 31:354-6. [PMID: 19961889 DOI: 10.1016/j.peptides.2009.11.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2009] [Revised: 11/23/2009] [Accepted: 11/23/2009] [Indexed: 10/20/2022]
Abstract
The available data suggest that Urocortin (UCN), a cardioprotective and vasoactive peptide known from fish neuroendocrinology, is involved in cardiac regulation. The aim of this study was to determine UCN plasma concentrations in patients with heart failure (HF). Plasma concentrations of UCN, measured in 42 fully treated HF patients. UCN, were determined using a specific ELISA assay after acidic extraction with Sep-Pak C18 columns. Circulating levels of other neurohormones Nt-proBNP, Nt-proANP and Big ET-1 were also determined. Reference values were obtained from 20 healthy age- and sex-matched subjects. In comparison with controls, UCN plasma concentrations (geometric mean [95% CI]) were significantly increased in HF patients (88 pmol/L [75-105] vs 46 [39-54], p<0.001). As expected, the other neurohormones were also significantly increased in HF patients (Nt-proBNP: 3501 pg/ml [2356-5202] vs 35 [24-51], Nt-proANP: 5498 pg/ml [4336-6971] vs 324 [255-411] and Big ET-1: 15.8 pg/ml [13.6-18.4] vs 5.9 [5.2-6.8]; p<0.01 for all vs controls). No significant correlation was observed between UCN and the other HF biomarkers. Our results demonstrate that plasma concentrations of UCN are significantly increased in patients with HF and that UCN may participate in the neurohumoral response of HF.
Collapse
Affiliation(s)
- D Gruson
- Unit of Diabetes and Nutrition, Cliniques Universitaires St-Luc, Brussels, Belgium.
| | | | | | | |
Collapse
|
13
|
Florio P, Linton EA, Torricelli M, Faldini E, Reis FM, Imperatore A, Calonaci G, Picciolini E, Petraglia F. Prediction of preterm delivery based on maternal plasma urocortin. J Clin Endocrinol Metab 2007; 92:4734-7. [PMID: 17986644 DOI: 10.1210/jc.2007-0457] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
CONTEXT Preterm birth still remains a significant management problem, and a large number of markers of the disease have been investigated. OBJECTIVE We measured plasma levels of urocortin, a neuropeptide expressed by gestational tissues, in women with threatened preterm labor (TPTL) to evaluate whether the measurement may predict preterm delivery (PTD). DESIGN We studied patients as part of an open observational study. SETTING The study was conducted at a tertiary referral center for obstetric care. PATIENTS Eighty-five women with singleton pregnancies between 28 and 34 completed gestational weeks with TPTL participated in the study. INTERVENTIONS Interventions included clinical examination and urocortin measurement. MAIN OUTCOME MEASURES Pregnancy outcome and evaluation of sensitivity, specificity, and predictive values of urocortin as diagnostic test for PTD were measured. RESULTS Thirty of 85 patients (35.3%) had PTD: 23 of 30 delivered within 7 d from admission (delivery time interval: 2.91 +/- 1.62 d; gestational weeks at delivery: 32.12 +/- 1.7); the remaining delivered later (delivery time interval: 11.71 +/- 4.27 d; gestational weeks at delivery: 33.5 +/- 2.18). Urocortin was significantly higher in women who delivered preterm (median 131.2 pg/ml, interquartile interval 115.1-139.4 pg/ml) than in those who progressed to term delivery [95.4 (69.9-101.3) pg/ml, P < 0.0001] and still higher in those delivering within 7 d from admission [137.7 (124.8-141.2) pg/ml]. Receiver operating characteristic curve analysis revealed that urocortin at the cutoff of 113.9 pg/ml had sensitivity of 80%, specificity of 100%, positive predictive value of 100%, and negative predictive value of 90% as a marker for PTD. CONCLUSIONS Maternal plasma urocortin concentration is increased in patients with TPTL who have PTD, and its measurement may be a promising new biochemical marker of PTD.
Collapse
Affiliation(s)
- Pasquale Florio
- Department of Pediatrics, Obstetrics, and Reproductive Medicine, Section of Obstetrics and Gynecology, University of Siena, Policlinico Le Scotte, viale Bracci, 53100 Siena, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Wang H, Shu Y, Momotani Y, Wang X, Mori Y, Momotani E. Corticotropin-releasing hormone and urocortin expression in peripheral blood cells from experimentally infected cattle with Mycobacterium avium subsp. paratuberculosis. Microbes Infect 2007; 9:1061-9. [PMID: 17644386 DOI: 10.1016/j.micinf.2007.04.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2006] [Revised: 03/23/2007] [Accepted: 04/26/2007] [Indexed: 11/16/2022]
Abstract
Urocortin (UCN) is a new neuropeptide of the corticotrophin-releasing hormone (CRH) family which plays an important role in immune responses. Mycobacterium avium subspecies paratuberculosis (Map) is the etiological agent of paratuberculosis (Johne's disease). The role of UCN or CRH in the pathogenesis of Map-infection is unknown. In the present study, we first cloned the bovine UCN gene and demonstrated the profile of UCN or CRH expression in peripheral blood cells from Map-infected cattle and uninfected controls by real-time reverse transcription-polymerase chain reaction (RT-PCR) and ELISA analysis. These data are the first observations of the characteristic kinetics of these neuropeptides in Map-infection. UCN or CRH expression in non-stimulated blood samples from infected cattle was higher than that in similarly treated samples from uninfected controls; however, exposure to Map lysate and live Map resulted in down-regulated expression of UCN in infected cattle compared to their counterparts from uninfected controls. These results have provided a direction in understanding the pathogenesis of paratuberculosis and improving diagnostic methods for Map-infection.
Collapse
Affiliation(s)
- Hongyu Wang
- Research Team for Paratuberculosis, National Institute of Animal Health, 3-1-5 Kan-nondai, Tsukuba 305-0856, Japan
| | | | | | | | | | | |
Collapse
|