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Dozio E, Bizouerne C. Psychological rapid response to population movements in democratic republic of congo (DRC). Eur Psychiatry 2021. [PMCID: PMC9471831 DOI: 10.1192/j.eurpsy.2021.863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
IntroductionIn DRC, the North Kivu province has been plagued by recurring humanitarian crises for nearly two decades, with multiple displacements of populations triggered low intensity armed inter-communal conflicts spread throughout nearly all territories. 818,605 people (displaced, returnees and indigenous) affected by these movements are in alarming psychosocial vulnerability.ObjectivesIn 2019, the NGO Action contre la Faim started a psychological intervention with the objective to contribute to reducing the vulnerability of conflict-affected populations.MethodsParticipants have been identified through psychoeducation sessions in the community in which people recognizing corresponding symptoms in themselves were evaluated through a short one-on-one interview. Persons identified as particularly in distress, including those who have experienced gender-based violence, have been involved in a short group therapeutic intervention. Two different options have been proposed in order to evaluate the most effective for the specific context: six sessions with a weekly or bi-weekly frequency.Results767 people participated in the psychosocial intervention, 457 with weekly frequency and 310 bi-weekly. The measures of post traumatic symptoms (PCL-5), anxiety and depression (HAD) and resilience (CD-RISC) show that the two approaches have the same positive effects. This is very important in volatile contexts with difficulties of access to the population due to security problems.ConclusionsThe fact that even a short intervention focused on a bi-weekly frequency, can reduce the distress and increase the psychological resilience of populations living in contexts of conflict, gives us the possibility of intervening in areas with limited access, while guaranteeing therapeutic efficacy.
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Dozio E, Bizouerne C. Group psychological intervention for people affected by conflict in Central African republic. Eur Psychiatry 2021. [PMCID: PMC9471367 DOI: 10.1192/j.eurpsy.2021.304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Introduction A large part of the Central African population has been exposed to potentially traumatic events as a result of the recent conflict, which has led to the breakdown of social ties. Objectives Faced with this situation, the NGO Action contre la Faim proposed a psychosocial intervention aimed at helping the displaced people to reduce their psychological suffering and strengthen individual and community resilience. Methods After psychoeducation sessions organized in communities affected by the conflict, people identified with traumatic symptoms are invited to participate in a psychological support intervention. The protocol used is based on the Problem Management Plus (PM+), developed by the WHO. The approach was adapted in groups to reach more suffering people and also to take advantage of the group dynamic in the possibility of recovering and developing better resilience. Results 946 IDPs in the country’s capital, participated in the group intervention led by a team of paraprofessionals. Data collected from 111 participants show that after five weeks of intervention, there was a significant reduction in post-traumatic symptoms (PCL-5) and functional impairment (WHODAS). These results were confirmed during the post-intervention evaluation four weeks later. In addiction, participants declared that they had observed effects on their ability to live together in the community and to regain social cohesion. Conclusions This experience gives encouraging results with regard to the feasibility and replicability of the group protocol, taking into account specific cultural and contextual adaptations. Disclosure No significant relationships.
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Macchi C, Iodice S, Persico N, Ferrari L, Cantone L, Greco MF, Ischia B, Dozio E, Corsini A, Sirtori CR, Ruscica M, Bollati V. Maternal exposure to air pollutants, PCSK9 levels, fetal growth and gestational age - An Italian cohort. Environ Int 2021; 149:106163. [PMID: 33556817 DOI: 10.1016/j.envint.2020.106163] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 08/24/2020] [Accepted: 09/23/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVE Exposure to airborne pollutants during pregnancy appears to be associated with uterine growth restriction and adverse neonatal outcome. Proprotein convertase subtilisin/kexin type (PCSK9), the key modulator of low-density lipoprotein (LDL) metabolism, increases following particulate matter (PM10) exposure. Because maternal cholesterol is required for fetal growth, PCSK9 levels could be used to evaluate the potential impact of airborne pollutants on fetal growth. DESIGN A cohort of 134 healthy women during early pregnancy (11-12 weeks of gestational age) was studied. RESULTS A significant association between circulating PCSK9 levels and three tested air pollutants (PM10, PM2.5, nitric oxide (NO2)) was found. Of importance, gestational age at birth was reduced by approximately 1 week for each 100 ng/mL rise in circulating PCSK9 levels, an effect that became more significant at the highest quartile of PM2.5 (with a 1.8 week advance in delivery date for every 100 ng/mL rise in circulating PCSK9; p for interaction = 0.026). This finding was supported by an elevation of the odds ratio for urgent cesarean delivery for each 100 ng/mL rise in PCSK9 (2.99, 95% CI, 1.22-6.57), similar trends being obtained for PM10 and NO2. CONCLUSIONS The association between exposure to air pollutants during pregnancy and elevation in PCSK9 advances our understanding of the unforeseen influences of environmental exposure in terms of pregnancy associated disorders.
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Affiliation(s)
- C Macchi
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Italy
| | - S Iodice
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - N Persico
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy; Department of Obstetrics and Gynecology 'L. Mangiagalli', Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - L Ferrari
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - L Cantone
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - M F Greco
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Italy
| | - B Ischia
- Department of Obstetrics and Gynecology 'L. Mangiagalli', Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - E Dozio
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - A Corsini
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Italy; IRCCS MultiMedica, Sesto S. Giovanni, Milan, Italy
| | - C R Sirtori
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Italy
| | - M Ruscica
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Italy.
| | - V Bollati
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy.
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Piantanida E, Gallo D, Dozio E, Trotti E, Piantanida E, Frattini F, Franzi F, Sessa F, Dionigi GL, Sabatino J, Bartalena L, Tanda ML, Ippolito S. Gastric Xanthomatous Hyperplastic Polyps – Just an Incidental Endoscopic Finding? Surg Case Rep 2020. [DOI: 10.31487/j.scr.2020.05.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Background: Laparoscopic sleeve gastrectomy (LSG) progressively became the preferred procedure
worldwide for the treatment of morbid obesity. Occasionally, unknown gastrointestinal diseases may be
incidentally discovered during the procedure or on the histologic gastric specimen. Gastric xanthomas are
uncommon lesions of the lamina propria, composed by foamy macrophages and mixed inflammatory
infiltrate. Rarely, xanthoma cells develop within a gastric hyperplastic polyp. Although usually benign, they
may be associated with pre-malignant conditions or even gastric cancer, making advisable an appropriate
workup.
Case Presentation: A hyperplastic polyp with xanthomatous proliferation was discovered in the gastric
specimen of a young man, suffering from severe obesity and metabolic syndrome. The patient had been
treated with proton pump inhibitors for gastric discomfort for years. After the surgical procedure, the gastric
discomfort rapidly disappeared.
Conclusion: Obesity is often complicated by gastrointestinal abnormalities discovered during ultrasound
or endoscopic procedures. Incidental findings of unknown gastric lesions are common occurrences during
sleeve gastrectomy. Although xanthelasmas per se are harmless, they might coexist with pre-malignant/
malignant lesions, especially when associated with gastric polyps. Thus, prompt intra-operative recognition
and adequate work-up are mandatory. Although cases of gastric polyps or xanthomas are not a novelty, to
our knowledge, this is the first case reporting about the discovery of a gastric hyperplastic polyp with
xanthomatous proliferation on gastric histological piece. From the discussion of this case and of similar
reports in the literature, we advocated for the importance of endoscopic screening in obese patients admitted
for bariatric surgery to address the proper surgical approach and follow-up.
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Affiliation(s)
- L Spatola
- Renal and Hemodialysis Unit, Humanitas Clinical and Research Hospital, via Manzoni 56, CAP 20089, Rozzano, MI, Italy.
| | - E Dozio
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; Laboratory of Molecular Pathology, IRCCS Policlinico Sand Donato, San Donato Milanese, Milan, Italy
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Dozio E, Vianello E, Ambrogi F, De Cal M, Ronco C, Tacchini L, Corsi Romanelli MM. sRAGE: a prognostic factor for mortality in end-stage renal disease patients on dialysis. J BIOL REG HOMEOS AG 2018; 32:33. [PMID: 30810006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- E Dozio
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; laboratory of Molecular Pathology, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - E Vianello
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - F Ambrogi
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - M De Cal
- Department of Nephrology, Dialysis and Transplantation, San Bortolo Hospital, Vicenza, Italy; International Renal Research Institute Vicenza (IRRIV), San Bortolo Hospital, Vicenza, Italy
| | - C Ronco
- Department of Nephrology, Dialysis and Transplantation, San Bortolo Hospital, Vicenza, Italy; International Renal Research Institute Vicenza (IRRIV), San Bortolo Hospital, Vicenza, Italy
| | - L Tacchini
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; Service of Laboratory Medicine1-Clinical Pathology, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
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Vianello E, Dozio E, Tacchini L, Lamont J, Bandera F, Corsi Romanelli MM. Dysfunctional epicardial adipose tissue (EAT) and maladaptive heart remodeling in patients with increased visceral adiposity: the ST2/IL-33 cardio-fat signaling. J BIOL REG HOMEOS AG 2018; 32:21-25. 4° JOINT MEETING OF PATHOLOGY AND LABORATORY MEDICINE SIPMET–SIPMEL-4° CONGRESS OF PATHOLOGY AND LABORATORY MEDICINE. [PMID: 30761863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- E Vianello
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - E Dozio
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
- Laboratory of Molecular Pathology, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - L Tacchini
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - J Lamont
- Randox Laboratories LTD, Research and Development, Crumlin-Antrim, Belfast,Northen Ireland, UK
| | - F Bandera
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
- Cardiology University Department, Heart Failure Unit, IRCCS Policlinico San Donato, Milan, Italy
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
- U.O.C. SMEL-1 of Clinical Pathology, IRCCS Policlinico San Donato, San Donato Milanese, Italy
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Dozio E, Bandera F, Vianello E, Brizzola S, Tacchini L, Corsi Romanelli MM. Upregulation of circulating levels of receptor for advanced glycation end products (sRAGE) in obese rats may protect against ectopic fat accumulation in the heart. J BIOL REG HOMEOS AG 2018; 32:32. [PMID: 30767496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- E Dozio
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; laboratory of Molecular Pathology, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - F Bandera
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; Department of Cardiology, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - E Vianello
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - S Brizzola
- Department of Veterinary Medicine, Università degli Studi di Milano, Milan, Italy
| | - L Tacchini
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; Service of Laboratory Medicine1-Clinical Pathology, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
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Dozio E, Vianello E, Grossi E, Menicanti L, Schmitz G, Corsi Romanelli MM. Plasma fatty acid profile as biomarker of coronary artery disease: a pilot study using fourth generation artificial neural networks. J BIOL REG HOMEOS AG 2018; 32:1007-1013. [PMID: 30043586 DOI: pmid/30043586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Many studies, focused on identifying new biomarkers for coronary artery disease (CAD) risk computation and monitoring, suggested a potential diagnostic role for fatty acids (FA). In the present study, we explored the potential diagnostic role of FA by using a data mining approach based on fourth generation artificial neural networks (ANN). Forty-one male subjects were enrolled. According to coronary angiography, 31 displayed CAD and 10 did not (non-CAD, control group). FA analysis was performed on plasma samples using a gas chromatography-mass spectrometry system and analyses were performed by an ANN method. The variables most closely related to CAD were low levels of alpha-linolenic acid, eicosapentaenoic acid, eicosatetraenoic and docosahexaenoic acids. High levels of 1,1-dimethoxyhexadecane, total dimethyl acetals and docosatetraenoic acid were related to non-CAD condition. This subset of variables, which were most closely correlated to the target diagnosis, achieved a consistent predictive rate. The average accuracy obtained was 76.5%, with 93% of sensitivity and 60% of specificity. The area under the ROC curve was equal to 0.79. In conclusion, our study highlighted the association between different plasma FA species, CAD and non-CAD conditions. The specific subset of variables could be of interest as a new diagnostic tool for CAD management.
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Affiliation(s)
- E Dozio
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - E Vianello
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - E Grossi
- Villa Santa Maria Institute, Tavernerio, Como, Italy
| | - L Menicanti
- Department of Cardiac Surgery, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - G Schmitz
- Institute for Clinical Chemistry and Laboratory Medicine, University of Regensburg, Regensburg, Germany
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
- Service of Laboratory Medicine 1-Clinical Pathology, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
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Vianello E, Dozio E, Brizzola S, Acocella F, Tacchini L, Corsi Romanelli MM. ST2 fibro-citokine and IL-33 alarmin protein are expressed in obese fa/fa- Zucker rat model and correlated with pro-fibrotic gene pathways. J BIOL REG HOMEOS AG 2018; 32:35. [PMID: 30810008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- E Vianello
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - E Dozio
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy and Laboratory of Molecular Pathology, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - S Brizzola
- Department of Veterinary Medicine, University of Milan, Milan, Italy
| | - F Acocella
- Department of Health, Animal Science and Food Safety, University of Milan, Milan, Italy
| | - L Tacchini
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy and UOC SMEL-1 of Clinical Pathology, IRCCS Policlinico San Donato, San Donato Milanese, Italy
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Vianello E, Dozio E, Barassi A, Sammarco G, Tacchini L, Marrocco-Trischitta MM, Trimarchi S, Corsi Romanelli MM. A pilot observational study on magnesium and calcium imbalance in elderly patients with acute aortic dissection. Immun Ageing 2017; 14:1. [PMID: 28070203 PMCID: PMC5217585 DOI: 10.1186/s12979-016-0083-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 12/06/2016] [Indexed: 12/13/2022]
Abstract
Background Magnesium (Mg) and calcium (Ca) are the principal essential elements involved in endothelial cell homeostasis. Extracellular changes in the levels of either alter endothelial contraction and dilatation. Consequently Mg and Ca imbalance is associated with a high risk of endothelial dysfunction, the main process observed during acute aortic dissection (AAD); in this clinical condition, which mainly affects elderly men, smooth muscle cell alterations lead to intimal tears, creating a false new lumen in the media of the aorta. AAD patients have a high risk of mortality as a result of late diagnosis because often it is not distinguished from other cardiovascular diseases. We investigated Mg and Ca total circulating levels and the associated pro-inflammatory mediators in elderly AAD patients, to gain further information on the pathophysiology of this disorder, with a view to suggesting newer and earlier potential biomarkers of AAD. Results Total circulating Mg and Ca levels were both lower in AAD patients than controls (p < 0.0001). Using Ca as cut-off, 90% of AAD patients with low Ca (<8.4 mg/dL) came into the type A classification of AAD. Stratifying AAD according to this cut-off, Mg was lower in patients with lower total Ca. Compared to controls, both type A and B AAD patients had higher levels of all the pro-coagulant and pro-inflammatory mediators analyzed, including sP-sel, D-dimer, TNF-α, IL-6, and CRP (p < 0.05). Dividing types A and B using the Stanford classification, no significant differences were found (p > 0.05) The levels of both ICAM-1 and EN-1 were lower in AAD than in a control group (p < 0.0001 and p < 0.05 respectively). Conclusions These findings suggest that low Mg and Ca in AAD elderly patients may contribute to altering normal endothelial physiology and also concur in changing the normal concentrations of different mediators involved in vasodilatation and constriction, associated with AAD onset and severity.
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Affiliation(s)
- E Vianello
- Department of Biomedical Sciences for Health, Chair of Clinical Pathology, Università degli Studi di Milano, via Luigi Mangiagalli 31, 20133 Milan, Italy
| | - E Dozio
- Department of Biomedical Sciences for Health, Chair of Clinical Pathology, Università degli Studi di Milano, via Luigi Mangiagalli 31, 20133 Milan, Italy
| | - A Barassi
- Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
| | - G Sammarco
- Laboratory Medicine Operative Unit-1, Clinical Pathology, I.R.C.C.S. Policlinico San Donato Milanese, Milan, Italy
| | - L Tacchini
- Department of Biomedical Sciences for Health, Chair of Clinical Pathology, Università degli Studi di Milano, via Luigi Mangiagalli 31, 20133 Milan, Italy
| | - M M Marrocco-Trischitta
- Thoracic Aortic Research Center, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - S Trimarchi
- Department of Biomedical Sciences for Health, Chair of Clinical Pathology, Università degli Studi di Milano, via Luigi Mangiagalli 31, 20133 Milan, Italy ; Thoracic Aortic Research Center, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, Chair of Clinical Pathology, Università degli Studi di Milano, via Luigi Mangiagalli 31, 20133 Milan, Italy ; Laboratory Medicine Operative Unit-1, Clinical Pathology, I.R.C.C.S. Policlinico San Donato Milanese, Milan, Italy
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Vianello E, Dozio E, Rigolini R, Marrocco-Trischitta MM, Tacchini L, Trimarchi S, Corsi Romanelli MM. Acute phase of aortic dissection: a pilot study on CD40L, MPO, and MMP-1, -2, 9 and TIMP-1 circulating levels in elderly patients. Immun Ageing 2016; 13:9. [PMID: 27006681 PMCID: PMC4802618 DOI: 10.1186/s12979-016-0063-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 03/14/2016] [Indexed: 12/25/2022]
Abstract
Background Acute aortic dissection (AAD) is an event which may be rapidly fatal without early diagnosis and treatment. Aging is one of the main risk factors that could leading to AAD. To date, no specific biomarkers are available to increase the speed of diagnosis. CD40 ligand (CD40L), myeloperoxidase (MPO), matrix metalloproteinase (MMP)-1, -2, -9 and metallopeptidase tissue inhibitor 1 (TIMP-1) are biologically related molecules which integrate inflammation, tissue injury and remodeling, all events associated to AAD. Our is a pilot study to evaluate whether circulating levels of these molecules may be used as potential biomarkers in timely diagnosis of AAD. Results Within 24 h of symptom onset, circulating CD40L, MPO, MMP-1,-2,-9 and TIMP-1 were quantified by enzyme-linked immunosorbent assays in 22 patients (40–86 years of age) with AAD of ascending aorta (type A according to Stanford classification) and 11 patients with AAD of descending aorta (type B). 30 healthy individuals age matched were used as control group compared to controls, both type A and B AAD patients had higher CD40L (p < 0.001) and MPO (p < 0.01) levels. MMP-1 was higher in the overall AAD group (p < 0.01). After Stanford classification, type A group had increased level compared to both control and type B (p < 0.01 and p < 0.05, respectively). TIMP-1 was higher in both A and B groups compared to controls (p < 0.001). No differences were observed in MMP-2 and MMP-9 levels. Conclusions The simultaneous evaluation of CD40L, MPO and MMP-1 and TIMP-1, which may contribute to structural changes in aortic tissue in AAD patients, seems to be a novel promising diagnostic panel.
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Affiliation(s)
- E Vianello
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Via Luigi Mangiagalli 31, 20133 Milan, Italy
| | - E Dozio
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Via Luigi Mangiagalli 31, 20133 Milan, Italy
| | - R Rigolini
- Laboratory Medicine Operative Unit-1, Clinical Pathology, I.R.C.C.S. Policlinico, San Donato Milanese Milan, Italy
| | - M M Marrocco-Trischitta
- Thoracic Aortic Research Center, I.R.C.C.S. Policlinico San Donato, San Donato Milanese Milan, Italy
| | - L Tacchini
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Via Luigi Mangiagalli 31, 20133 Milan, Italy
| | - S Trimarchi
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Via Luigi Mangiagalli 31, 20133 Milan, Italy ; Thoracic Aortic Research Center, I.R.C.C.S. Policlinico San Donato, San Donato Milanese Milan, Italy
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Via Luigi Mangiagalli 31, 20133 Milan, Italy ; Laboratory Medicine Operative Unit-1, Clinical Pathology, I.R.C.C.S. Policlinico, San Donato Milanese Milan, Italy
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Vianello E, Dozio E, Arnaboldi F, Marazzi MG, Martinelli C, Lamont J, Tacchini L, Sigrüner A, Schmitz G, Corsi Romanelli MM. Epicardial adipocyte hypertrophy: Association with M1-polarization and toll-like receptor pathways in coronary artery disease patients. Nutr Metab Cardiovasc Dis 2016; 26:246-253. [PMID: 26841679 DOI: 10.1016/j.numecd.2015.12.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [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: 03/18/2015] [Revised: 11/02/2015] [Accepted: 12/07/2015] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND AIMS In coronary artery disease (CAD) epicardial adipose tissue (EAT) shows an elevated inflammatory infiltrate. Toll-like receptors (TLRs) are important mediators of adipose tissue inflammation and they are able to recognize endogenous products released by damaged cells. Because adipocyte death may be driven by hypertrophy, our aim was to investigate in CAD and non-CAD patients the association between EAT adipocyte size, macrophage infiltration/polarization and TLR-2 and TLR-4 expression. METHODS AND RESULTS EAT biopsies were collected from CAD and non-CAD patients. The adipocyte size was determined by morphometric analysis. Microarray technology was used for gene expression analysis; macrophage phenotype and TLRs expression were analyzed by immunofluorescence and immunohistochemical techniques. Inflammatory mediator levels were determined by immunoassays. EAT adipocytes were larger in CAD than non-CAD patients and do not express perilipin A, a marker of lipid droplet integrity. In CAD, EAT is more infiltrated by CD68-positive cells which are polarized toward an M1 state (CD11c positive) and presents an increased pro-inflammatory profile. Both TLR-2 and TLR-4 expression is higher in EAT from CAD and observed on all the CD68-positive cells. CONCLUSIONS Our findings suggested that EAT hypertrophy in CAD promotes adipocyte degeneration and drives local inflammation through increased infiltration of macrophages which are mainly polarized towards an M1 state and express both TLR-2 and TLR-4.
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Affiliation(s)
- E Vianello
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.
| | - E Dozio
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - F Arnaboldi
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - M G Marazzi
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - C Martinelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - J Lamont
- Randox Laboratories LTD, R&D, Crumlin-Antrim, Belfast, Northern Ireland, UK
| | - L Tacchini
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - A Sigrüner
- Institute for Clinical Chemistry and Laboratory Medicine, University of Regensburg, Germany
| | - G Schmitz
- Institute for Clinical Chemistry and Laboratory Medicine, University of Regensburg, Germany
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; SMEL-1 Clinical Pathology, I.R.C.C.S. Policlinico San Donato, Milan, Italy
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15
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Passeri E, Dozio E, Mendola M, Costa E, Bandera F, Corsi Romanelli MM, Corbetta S. Treatment with teriparatide might be associated with cardiometabolic changes in postmenopausal severe osteoporotic women. J BIOL REG HOMEOS AG 2015; 29:931-940. [PMID: 26753658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Parathormone (PTH) has been suggested to affect the cardiovascular system. Teriparatide (TPT), the hormonally active 1-34 fragment of PTH, provides an anabolic treatment for osteoporosis. The aim of the present study was to evaluate the cardiometabolic effects of 18-month treatment with 20 μg/ die teriparatide subcutaneosly. Fourteen women with postmenopausal severe osteoporosis treated with once-daily sc 20 μg TPT (67.6 ± 2.5 years; BMI 27.7 ± 1.0 kg/m²) and 24 age- and BMI-matched severe osteoporotic women treated with iv yearly 5 mg zoledronate (ZLN) were evaluated at baseline and at 12-18 months of treatment for anthropometric measures, calcium, glucose and lipid metabolic parameters, and assessment of cardiac geometry by conventional echocardiography. TPT was effective in increasing mean lumbar spine bone mineral density with no clinically relevant changes in calcium metabolism parameters. TPT patients experienced an increase of BMI (27.7 ± 1.0 at baseline vs 29.0 ± 1.0 kg/m² at last evaluation, P=0.005) and mean whole body fat percentage (37.0 ± 2.1 vs 40.3 ± 1.9%, P=0.05), associated with increased serum leptin levels (17.3 ± 2.1 vs 22.9 ± 3.0 ng/ml; P=0.049). Glucose and lipid parameters were not affected by TPT as well as by ZLN treatment. Furthermore, TPT was associated with a decrease in systolic blood pressure; a decrease in the fractional shortening (41.2 ± 2.3 vs 36.9 ± 1.2; P=0.05) and an increase in the relative wall thickness (0.39 ± 0.01 vs 0.48 ± 0.01 mm; P=0.002), suggestive for concentric cardiac remodeling, was detected by echocardiographic monitoring. These changes could not be detected in bone active drug-free age- and metabolic-matched controls. In conclusion, long-term TPT therapy might affect cardiometabolic and cardiac geometry parameters in severe osteoporotic women, though changes are not clinically relevant.
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Affiliation(s)
- E Passeri
- Endocrinology Unit, IRCCS Policlinico San Donato, San Donato M.se, Milan, Italy
| | - E Dozio
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - M Mendola
- Endocrinology Unit, IRCCS Policlinico San Donato, San Donato M.se, Milan, Italy
| | - E Costa
- Clinical Chemistry Laboratory, IRCCS Policlinico San Donato, San Donato M.se, Milan, Italy
| | - F Bandera
- Heart Failure Unit, IRCCS Policlinico San Donato, San Donato M.se, Milan, Italy
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy; UOC SMEL-1 Clinical Pathology, IRCCS Policlinico San Donato, San Donato M.se, Milan, Italy
| | - S Corbetta
- Endocrinology Unit, IRCCS Policlinico San Donato, San Donato M.se, Milan, Italy; Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
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16
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Dozio E, Briganti S, Vianello E, Dogliotti G, Barassi A, Malavazos AE, Ermetici F, Morricone L, Sigruener A, Schmitz G, Corsi Romanelli MM. Epicardial adipose tissue inflammation is related to vitamin D deficiency in patients affected by coronary artery disease. Nutr Metab Cardiovasc Dis 2015; 25:267-273. [PMID: 25315671 DOI: 10.1016/j.numecd.2014.08.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [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: 05/30/2014] [Revised: 08/06/2014] [Accepted: 08/29/2014] [Indexed: 01/26/2023]
Abstract
BACKGROUND AND AIMS Alterations in epicardial adipose tissue (EAT) biology (i.e. increased fat thickness and inflammation) have been described in coronary artery disease (CAD) patients. In addition to its classic role in the regulation of calcium-phosphate homeostasis, vitamin D may exert immune-regulatory and anti-inflammatory effects. Whether EAT inflammation may be linked to vitamin D deficiency is still unknown. In the present study we evaluated plasma 25-hydroxycholecalciferol (25OHD) level in CAD patients and its relationship with EAT ability to locally metabolize vitamin D, EAT expression of inflammation-related molecules and EAT thickness. METHODS AND RESULTS Plasma 25OHD level was quantified by an immunoluminometric assay. EAT expression of inflammation-related molecules (MCP-1, PTX3, TNFα, IL-6, adiponectin), vitamin D receptor (VDR), CYP27B1 (25OHD-activating enzyme) and CYP24A1 (1,25-dihydroxycholecalciferol-metabolizing enzyme) was performed by microarray. EAT thickness was quantified by echocardiography. Median plasma 25OHD level was 10.85 ng/mL and 83% of CAD patients displayed 25OHD level below 20 ng/mL. At decreasing plasma 25OHD concentration, we observed a down-regulation in CYP27B1 and CYP24A1 level and an increased expression of VDR and pro-inflammatory cytokines (MCP-1, PTX3, TNFα, IL-6) at EAT level. No correlation was observed between plasma 25OHD level and EAT thickness. CONCLUSION Our data suggest an increased activation of inflammatory pathways at EAT level possibly related to systemic and local vitamin D deficiency in CAD patients. Whether maintaining an optimal vitamin D status may be helpful to reduce EAT inflammation and to prevent CAD and its progression needs further investigation.
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Affiliation(s)
- E Dozio
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.
| | - S Briganti
- Diabetology and Metabolic Diseases Unit, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - E Vianello
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - G Dogliotti
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - A Barassi
- Department of Sciences for Health, Ospedale San Paolo, Università degli Studi di Milano, Milan, Italy
| | - A E Malavazos
- Diabetology and Metabolic Diseases Unit, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - F Ermetici
- Diabetology and Metabolic Diseases Unit, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - L Morricone
- Diabetology and Metabolic Diseases Unit, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - A Sigruener
- Institute for Clinical Chemistry and Laboratory Medicine, University of Regensburg, Regensburg, Germany
| | - G Schmitz
- Institute for Clinical Chemistry and Laboratory Medicine, University of Regensburg, Regensburg, Germany
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; Service of Laboratory Medicine 1 - Clinical Pathology, Department of Health Services of Diagnosis and Treatment - Laboratory Medicine, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
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17
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Dogliotti G, Dozio E, Sigruener A, Malavazos A, Vianello E, Tarabin V, Liebisch G, Schmitz G, Corsi Romanelli M. Glycerophospholipid and sphingolipid content in epicardial fat from coronary artery disease (CAD) patients. Clin Biochem 2013. [DOI: 10.1016/j.clinbiochem.2013.05.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Dozio E, Barassi A, Marazzi MG, Vianello E, Colpi GM, Solimene U, Melzi D'Eril GL, Corsi Romanelli MM. Plasma myeloperoxidase in patients with erectile dysfunction of arteriogenic- and non-arteriogenic origin: association with markers of endothelial dysfunction. J BIOL REG HOMEOS AG 2013; 27:749-755. [PMID: 24152842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Endothelial dysfunction and the disruption of the nitric oxide-cyclic guanosine monophosphate (cGMP) pathway have been considered the early mechanisms for the development of erectile dysfunction (ED). Myeloperoxidase (MPO), a heme-containing enzyme mainly released by activated neutrophils and monocytes, may contribute to endothelial dysfunction by promoting oxidation of different substrates and thus may play a role in ED. MPO level and its correlation with different plasma biomarkers of endothelial dysfunction were studied in patient with ED of arteriogenic (A-ED) and non-arteriogenic (NA-ED) to assess potential differences between the two ED subgroups. Diagnosis of ED was based on the International Index of Erectile Function Score. Its etiology was classified with penile echo-color Doppler at baseline and after intracavernous injection of prostaglandin E1. MPO, soluble (s) cGMP, sICAM-1, sVCAM-1 and sP-Selectin were measured by enzyme-linked immunosorbent assay. MPO concentration in A-ED was significantly higher compared to control subjects and NA-ED patients. Plasmatic cGMP level resulted lower both in A-ED and in NA-ED patients, whereas no difference has been observed between the two ED groups. sICAM-1 concentration resulted higher in A-ED compared both to controls and NA-ED. sVCAM-1 level was the same in controls, A-ED and NA-ED patients. sP-Selectin concentration resulted higher both in A-ED and in NA-ED patients than in controls, whereas no difference has been observed between the two ED groups. Correlation analysis indicated a positive correlation between plasmatic MPO, sICAM-1 and sP-Selectin levels. MPO may represent an important link between oxidation, inflammation and cardiovascular diseases and may also represent a potential marker to distinguish between the two subgroups of ED patients. Moreover, in ED subjects circulating cGMP may reflect the local signaling dysfunction. The use cGMP as a potential marker for monitoring the disease needs further investigation.
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Affiliation(s)
- E Dozio
- Dipartimento di Scienze Biomediche per la Salute, Cattedra di Patologia Clinica, Universita' degli Studi di Milano, Milan, Italy
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19
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Galliera E, Dozio E, Dogliotti G, Vassena C, Colloredo Mels L, Romano CL, Mattina R, Corsi MM, Drago L. Iron status evaluation as a marker of postoperative joint infection: a pilot study. Int J Immunopathol Pharmacol 2013; 25:1149-55. [PMID: 23298506 DOI: 10.1177/039463201202500433] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
We evaluated the effect of different inflammatory conditions on iron status and, as a consequence, the possible use of iron markers as indicators of infection in the diagnosis of postoperative prosthetic orthopaedic joint infections. The study population was consisted of 26 patients undergoing revision of total hip or total knee joint arthroplasty and subdivided into three groups according to the cause of prosthesis implant failure: 10 as having had previous infection (Group A), 10 patients were categorized as having infection (Group B); and the remaining 6 (Group C) as not having infection. These patients were assayed for mean corpuscular haemoglobin concentration (MCHC) and serum values of iron (Fe), ferritin (Fer), transferrin (Tf), soluble transferrin receptor (sTfR), and transferrin saturation (sat Tf). Septic patients display statistically significant lower serum iron concentration, higher sTfR and ferritin levels, lower, but not statistically significant, MCHC compared to non septic ones. Little differences were observed for Tf, sat Tf, tibc, TfR index, among the three groups of patients. Our study suggests that iron status parameters, in particular serum iron, ferritin, sTfR and TfR index, could be useful tools for the early detection and the diagnosis of orthopaedic prosthetic joint infections.
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20
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Dozio E, Dogliotti G, Malavazos AE, Bandera F, Cassetti G, Vianello E, Zelaschi R, Barassi A, Pellissero G, Solimene U, Morricone L, Sigruener A, Tarabin V, Schmitz G, Menicanti L, Corsi Romanelli MM. IL-18 level in patients undergoing coronary artery bypass grafting surgery or valve replacement: which link with epicardial fat depot? Int J Immunopathol Pharmacol 2013; 25:1011-20. [PMID: 23298491 DOI: 10.1177/039463201202500418] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Interleukin-18 (IL-18) is a member of the interleukin-1 family of cytokines produced constitutively by different cell types and by adipose tissue. Due to the link between obesity, inflammation and cardiovascular diseases, we aimed to measure IL-18 circulating level in patients undergoing open-heart surgery both for elective coronary artery bypass grafting (CABG) or for valve replacement (VR), and we also evaluated whether epicardial adipose tissue (EAT) depot may be a potential source of IL-18. Circulating IL-18 protein was quantified by enzyme-linked immunosorbent assay. IL-18, IL-18 receptor 1 (IL-18 R1) and IL-18 receptor accessory protein (IL-18-RAP) gene expression in EAT depot were evaluated by one colour microarray platform. EAT thickness was measured by echocardiography. In this study we found that all cardiovascular patients (CABG and VR) have increased circulating IL-18 level compared to healthy control subjects (p < 0.0001), but no statistical significant difference was observed between CABG and VR groups (p = 0.35). A great increase in the gene expression of IL-18 (p < 0.05), IL-18 R1 (p < 0.01) and IL-18 RAP (p < 0.001) was observed in EAT samples obtained from CABG vs VR patients. In conclusion, CABG and VR patients had similar increased level of circulating IL-18 protein, but in EAT depots isolated from CABG gene expression of IL-18, IL-18 R1 and IL-18-RAP resulted higher than in VR patients. Future investigation on local IL-18 protein production, its autocrine-paracrine effect and its correlation with plasmatic IL-18 level could give more information on the relationship between IL-18 and coronary artery disease.
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Affiliation(s)
- E Dozio
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy.
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21
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Paroni R, Barassi A, Ciociola F, Dozio E, Finati E, Fermo I, Ghilardi F, Colpi GM, Corsi MM, Melzi d’Eril GV. Asymmetric dimethylarginine (ADMA), symmetric dimethylarginine (SDMA) and L-arginine in patients with arteriogenic and non-arteriogenic erectile dysfunction. ACTA ACUST UNITED AC 2012; 35:660-7. [DOI: 10.1111/j.1365-2605.2012.01272.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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22
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Ruscica M, Dozio E, Steffani L, Passafaro L, Mazzer M, Castellano JM, Motta M, Tena-Sempere M, Magni P. Role of the energy sensor adenosine monophosphate-activated protein kinase in the regulation of immature gonadotropin-releasing hormone neuron migration. J Endocrinol Invest 2011; 34:e362-8. [PMID: 21697647 DOI: 10.3275/7803] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND The 5'-AMP-activated protein kinase (AMPK) plays a fundamental role in regulating energy homeostasis as well as feeding and metabolism, through central and peripheral actions. AMPK is activated by conditions causing ATP depletion and by different metabolic molecules, such as adiponectin and AMPK agonist, such as 5-aminoimidazole- 4-carboxamide-1-β-D-ribofuranoside (AICAR). AMPK activation has also been shown to affect the migration of different cell types and to participate in the central control of reproductive function, although information concerning AMPK and the development of the hypothalamic reproductive compartment is lacking. AIM To explore whether AMPK activation by globular adiponectin (gAdipo) and AICAR may affect the migratory ability of GnRH neurons. MATERIALS AND METHODS We used GN11 immature GnRH neurons (in vitro model system), RT-PCR and Western blot analysis, and Boyden's chamber assay. RESULTS gAdipo did not affect FBS-stimulated migration of GN11 cells and activated AMPK through the mandatory phosphorylation of extracellular signal-regulated kinase 1 and 2 (ERK1/2) and Akt, which also interact one to each other. AICAR treatment inhibited FBS-stimulated GN11 cell migration, through a long-lasting activation of AMPK. A downstream activation of ERK1/2 by AICAR was also observed and inhibition of ERK1/2 amplified AICAR-induced inhibition of migration. CONCLUSIONS The direct, but not the indirect, activation of AMPK appears to negatively affect FBSinduced GN11 cell migration, suggesting that the final balance between pro-migratory and anti-migratory actions may also depend upon the specific sequence of intracellular signals activated by one agent.
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Affiliation(s)
- M Ruscica
- Department of Endocrinology, Pathophysiology and Applied Biology, Inter-University Center for Research on Reproductive Health (CIRMAR), Center of Excellence on Neurodegenerative Diseases (CEND), Città Studi University of Milan, Via G. Balzaretti 9, 20133 Milan, Italy
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23
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Dozio E, Malavazos A, Dogliotti G, Goggi S, Galliera E, Solimene U, Magni P, Costa E, Morricone L, Corsi M. Asymmetric Dimethylarginine: Relationship with Circulating Biomarkers of Inflammation and Cardiovascular Disease Risk in Uncomplicated Obese Women. EUR J INFLAMM 2011. [DOI: 10.1177/1721727x1100900305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In recent years, the link between obesity, inflammation and atherosclerosis has attracted increasing interest. Recently, besides the classical inflammatory markers, the competitive nitric oxide synthase antagonist asymmetric dimethylarginine (ADMA) has been shown to be involved in the pathogenesis of atherosclerosis and cardiovascular diseases. Since obese people present a condition of chronic low-grade inflammation and endothelial dysfunction, in the present study we quantified ADMA levels in uncomplicated obese women (with no clinical, cardiac or metabolic complications) and normal-weight control subjects. We investigated the relationship of ADMA with some anthropometric measurements, abdominal visceral and subcutaneous adipose tissue accumulation, and biochemical and proinflammatory factors of the subjects [interleukin-6 (IL-6), soluble IL-6 receptor (sIL-6R), IL6-R/IL-6 ratio, tumor necrosis factor alpha (TNFα), homocysteine (Hey) and plasminogen activator inhibitor-1 (PAI-1)]. ADMA and all the other pro-inflammatory parameters resulted higher in obese patients than in healthy subjects. ADMA significantly correlated with Hey, PAI-1, TNFα and with sIL-6R/IL-6 ratio but not with other anthropometric and biochemical parameters. In a stepwise regression analysis ADMA correlated most closely with Hey and TNFα. In conclusion, in our obese uncomplicated patients TNFα and Hey emerged as strong predictors of ADMA which might be a potential mediator of the effects of different risk factors affecting the cardiovascular system.
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Affiliation(s)
- E. Dozio
- Department of Human Morphology and Biomedical Sciences “Città Studi”, University of Milan, Milan
| | - A.E. Malavazos
- Operative Unit of Diabetology and Metabolic Diseases, IRCCS Policlinico San Donato, Milan
| | - G. Dogliotti
- Department of Human Morphology and Biomedical Sciences “Città Studi”, University of Milan, Milan
| | - S. Goggi
- Operative Unit of Diabetology and Metabolic Diseases, IRCCS Policlinico San Donato, Milan
| | - E. Galliera
- Department of Human Morphology and Biomedical Sciences “Città Studi”, University of Milan, Milan
| | - U. Solimene
- Department of Human Morphology and Biomedical Sciences “Città Studi”, University of Milan, Milan
- Center for Research in Medical Bioclimatology, University of Milan, Milan
| | - P. Magni
- Department of Endocrinology, Physiopathology and Applied Biology, University of Milan, Milan
| | - E. Costa
- Operative Unit of Clinical Pathology Laboratory, Department of Health Services of Diagnosis and Treatment - Laboratory Medicine, IRCCS Policlinico San Donato, Milan, Italy
| | - L. Morricone
- Operative Unit of Diabetology and Metabolic Diseases, IRCCS Policlinico San Donato, Milan
| | - M.M. Corsi
- Department of Human Morphology and Biomedical Sciences “Città Studi”, University of Milan, Milan
- Operative Unit of Clinical Pathology Laboratory, Department of Health Services of Diagnosis and Treatment - Laboratory Medicine, IRCCS Policlinico San Donato, Milan, Italy
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24
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Drago L, Vassena C, Dozio E, Corsi MM, De Vecchi E, Mattina R, Romanò C. Procalcitonin, C-reactive protein, interleukin-6, and soluble intercellular adhesion molecule-1 as markers of postoperative orthopaedic joint prosthesis infections. Int J Immunopathol Pharmacol 2011; 24:433-40. [PMID: 21658317 DOI: 10.1177/039463201102400216] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
There is a universally recognized need to identify new, reliable markers of inflammation that can aid in the rapid diagnosis of orthopaedic joint prosthesis infections (OJP-Is). Since prompt diagnosis is key to timely intervention in the course of infection, different molecules have been studied. In this study, we examined three groups of patients: those with prosthesis infection, those without infection, and a third group with previous infection in whom the infection had been cleared. Four presumed markers of infection were tested: procalcitonin (PCT); C-reactive protein (CRP); interleukin-6 (IL-6); and soluble intercellular adhesion molecule-1 (sICAM-1). The results showed that PCT cannot be considered as a good marker of periprosthetic infection as no statistically significant difference in serum PCT levels emerged between patients with infection and controls or patients without infection. In contrast, both sICAM-1 and CRP may be considered as good markers of infection, as measurement of their levels allowed us to distinguish between patients with and without infection, and between patients with infection and those with previous infection, since marker levels quickly returned to baseline values after clearance of the infection. IL-6 was found to be a good marker for inflammation, as it distinguished between patients with infection and the other groups. In the patients with previous infection, the IL-6 values remained high versus the controls but lower and with a statistically significant difference versus the patients with infection. Further studies are needed to determine the cut-off value of IL-6 between patients with infection and those with previous infection.
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Affiliation(s)
- L Drago
- Laboratory of Clinical Chemistry and Microbiology, IRCCS Galeazzi Institute, Milan
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25
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Cicero AFG, Magni P, Lentini P, Ruscica M, Dozio E, Strollo F, Borghi C. Sex hormones and adipokines in healthy pre-menopausal, post-menopausal and elderly women, and in age-matched men: data from the Brisighella Heart study. J Endocrinol Invest 2011; 34:e158-62. [PMID: 21164276 DOI: 10.3275/7407] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND Sex hormones and adipokines seem to differently interact in both genders at different ages. AIM To comparatively evaluate the serum level of adipokines and sex hormones in healthy non-pharmacologically treated premenopausal women, post-menopausal women, and elderly women, and in age-matched men. SUBJECTS From the historical cohort of the Brisighella Heart Study we selected 199 adult healthy subjects (males: 89; females: 110), aged 62.5±12.4 yr. Men and women included in the age-class subgroups were matched for body mass index (BMI), waist circumference, blood pressure, heart rate, fasting plasma glucose, plasma lipids. RESULTS Leptin did not differ among various age classes in men, while pre-menopausal women displayed significantly lower serum leptin than post-menopausal women (-6.7 ± 2.2 pg/ml, p=0.036). Post-menopausal women had significantly greater serum leptin when compared with age-matched men (+13.1 ± 2.0 pg/ml, p<0.001); the same was observed for elderly women when compared with elderly men (+11.2 ± 2.3 pg/ml, p<0.001). At any age, women had significantly lower serum testosterone/estrone ratio than age-matched men (p<0.01). Serum DHEAS was inversely proportional to age in both genders. The main predictors of adiponectin level are age in men (p=0.027) and BMI in women (p=0.003). The main predictors of leptin level are BMI and the testosterone/estrone ratio in both sexes (p<0.05). The testosterone/estrone ratio is also the main predictor of ghrelin levels in women (p=0.006). CONCLUSION Sex hormones and adipokines show specific interactions in the two genders and in different age-classes in a representative sample of adult healthy subjects.
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Affiliation(s)
- A F G Cicero
- Internal Medicine, Aging and Kidney Disease Department, University of Bologna, 40138 Bologna, Italy.
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26
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Arvigo M, Gatto F, Ruscica M, Ameri P, Dozio E, Albertelli M, Culler MD, Motta M, Minuto F, Magni P, Ferone D. Somatostatin and dopamine receptor interaction in prostate and lung cancer cell lines. J Endocrinol 2010; 207:309-17. [PMID: 20876239 DOI: 10.1677/joe-10-0342] [Citation(s) in RCA: 24] [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] [Indexed: 11/27/2022]
Abstract
Somatostatin analogues inhibit in vitro cell proliferation via specific membrane receptors (SSTRs). Recent studies on transfected cell lines have shown a ligand-induced formation of receptor dimers. The aim of this study is 1) to evaluate the role of specific ligands in modulating receptor interactions in the androgen-dependent prostate cancer cell line, LNCaP, and in the non-small cell lung cancer line, Calu-6, by co-immunoprecipitation and immunoblot; and 2) to correlate the antiproliferative effect of these compounds with their ability in modulating receptor interactions. In LNCaP, we have demonstrated the constitutive presence of sstr₁/sstr₂, sstr₂/sstr₅, sstr₅/dopamine (DA) type 2 receptor (D₂R), and sstr₂/D₂R dimers. BIM-23704 (sstr₁- and sstr₂-preferential compound) increased the co-immunoprecipitation of sstr₁/sstr₂ and significantly inhibited proliferation (-30.98%). BIM-23244 (sstr₂-sstr₅ selective agonist) significantly increased the co-immunoprecipitation of sstr₂/sstr₅, and induced a -41.36% inhibition of proliferation. BIM-23A760, a new somatostatin/DA chimeric agonist with a high affinity for sstr₂ and D₂R and a moderate affinity for sstr₅, significantly increased the sstr₅/D₂R and sstr₂/D₂R complexes and was the most powerful in inhibiting proliferation (-42.30%). The chimeric compound was also the most efficient in modulating receptor interaction in Calu-6, increasing the co-immunoprecipitation of D₂R/sstr₅ and inhibiting cell proliferation (-30.54%). However, behind BIM-23A760, BIM-53097 (D₂R-preferential compound) also significantly inhibited Calu-6 proliferation (-17.71%), suggesting a key role for D₂R in receptor cross talk and in controlling cell growth. Indeed, activation of monomeric receptors did not affect receptor co-immunoprecipitation, whereas cell proliferation was significantly inhibited when the receptors were synergistically activated. In conclusion, our data show a dynamic ligand-induced somatostatin and DA receptor interaction, which may be crucial for the antiproliferative effects of the new analogues.
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Affiliation(s)
- M Arvigo
- Department of Endocrinological and Medical Sciences and Center of Excellence for Biomedical Research, Università degli Studi di Genova, 16132 Genova, Italy
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Magni P, Dozio E, Galliera E, Ruscica M, Corsi MM. Molecular aspects of adipokine-bone interactions. Curr Mol Med 2010; 10:522-32. [PMID: 20642443 DOI: 10.2174/1566524011009060522] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2009] [Accepted: 12/28/2009] [Indexed: 12/31/2022]
Abstract
Adipose tissue is an endocrine organ able to produce a wide series of pleiotropic molecules, defined "adipokines". In addition to the regulation of food intake and energy metabolism, adipokines are also implicated in the complex control of bone biology and specifically of bone remodeling. Leptin, the most studied adipokine, promotes satiety and energy expenditure and its circulating levels are proportional to fat mass. Some paradoxical findings originally suggested the involvement of leptin in controlling bone mass. For example, obese postmenopausal women, with elevated circulating leptin and leptin resistance, appear protected against the development of osteoporosis. Moreover, genetically leptin-deficient mice, which are hypogonadal and obese, display a decreased trabecular volume in long bones, but an increased vertebral bone mass, which is reduced by leptin administration. The complex mechanisms of leptin regulation of bone mass appear to involve selected hypothalamic neuronal populations and the sympathetic outflow, with an important role of osteoblastic beta2-adrenergic receptors. Adiponectin is another adipokine, which promotes insulin sensitivity and is reduced in obese and diabetic subjects. Adiponectin appears to exert a negative effect on bone mass and seems to be an independent predictor of lower bone mass. Although the adipokines resistin and visfatin do not seem to significantly affect bone metabolism, the potential impact of them and other adipokines is still to be determined. Moreover, the molecular adipokine-bone interactions should also be considered in the context of the adipokine changes observed in diseases such as obesity and the metabolic syndrome.
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Affiliation(s)
- P Magni
- Department of Endocrinology, Pathophysiology and Applied Biology, School of Pharmacy, Universita' degli Studi di Milano, Milan, Italy.
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Dogliotti G, Galliera E, Dozio E, Vianello E, Villa R, Licastro F, Barajon I, Corsi M. Okadaic acid induces apoptosis in Down syndrome fibroblasts. Toxicol In Vitro 2010; 24:815-21. [DOI: 10.1016/j.tiv.2009.12.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2009] [Revised: 11/12/2009] [Accepted: 12/09/2009] [Indexed: 10/20/2022]
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Dozio E, Ruscica M, Galliera E, Corsi MM, Magni P. Leptin, ciliary neurotrophic factor, leukemia inhibitory factor and interleukin-6: class-I cytokines involved in the neuroendocrine regulation of the reproductive function. Curr Protein Pept Sci 2010; 10:577-84. [PMID: 19751193 DOI: 10.2174/138920309789630561] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2009] [Accepted: 07/06/2009] [Indexed: 11/22/2022]
Abstract
Class-I cytokines represent a large group of molecules involved in different physiological processes including host defence, immune regulation, food intake, energy metabolism and, relevant for this review, reproduction. In this latter respect, here, we focus the attention on four of these molecules, specifically leptin, ciliary neurotrophic factor (CNTF), leukemia inhibitory factor (LIF) and interleukin-6 (IL-6). These cytokines present similar three-dimensional fold structure, interact with related class-I receptors, which are expressed in the same regions (i.e., hypothalamus), and activate similar intracellular pathways. Leptin and CNTF share functional similarities, by acting at hypothalamic and pituitary levels, and their receptors are colocalized in the arcuate and paraventricular nuclei of the hypothalamus. For both these molecules, no effect on GnRH migration has been described. LIF has also been shown to affect gonadotropin secretion and here we present the novel observation that it is also able to stimulate GnRH secretion in vitro. Moreover, in the mouse, LIF is prenatally expressed in nasal regions where GnRH neurons originate and start their migration, and in vitro it stimulates intrinsic cell motility and directional migration. The role of the prototypical cytokine, IL-6, on the GnRH-LH axis is not fully clear and additional information seem necessary to better clarify this aspect. In conclusion, the data here discussed suggest that this family of cytokines appears to participate to the complex control of the reproductive function by affecting the development and function of the hypothalamus-pituitary system at different ontogenic times and anatomical sites.
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Affiliation(s)
- E Dozio
- Department of Human Morphology and Biomedical Sciences Citta' Studi, Università degli Studi di Milano, Milan, Italy
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Magni P, Ruscica M, Dozio E, Passafaro L, Steffani L, Morelli P, Banfi G, Corsi MM. Plasma adiponectin and leptin concentrations in professional rugby players. J BIOL REG HOMEOS AG 2010; 24:87-91. [PMID: 20385074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Adipose tissue synthesizes and secretes a number of cytokine hormones, defined adipokines, which have emerged as critical regulators of several metabolic functions, including energy homeostasis, insulin action and lipid metabolism. The present study is aimed at assessing the relationship between plasma concentrations of leptin and adiponectin and body composition in a cohort of 38 male professional rugby players (age: 22-35 years). Anthropometric evaluation included body mass index (BMI, range: 23.4-35.1 kg/m2) and whole body bioelectric impedance to determine absolute fat-free mass (FFM), absolute fat mass (FAT), relative percentage of fat mass (FAT percent) and fat-free mass (FFM percent). FAT percent ranged from 15 to 34 percent, corresponding to a FAT of 11.5-38.7 kg, whereas FFM range was 62.1-83.5 kg. Plasma leptin range was 1.2-4.3 ng/mL and adiponectin range was 2.0-16.6 microg/mL. Plasma leptin and adiponectin concentrations and their ratio did not correlate with BMI, nor with FAT, FAT percent, FFM and FFM percent, even after correction for BMI. The findings of this study suggest that in professional rugby players some additional factors, like neuroendocrine adaptations, other than adipose mass play a relevant role in the determination of adipokine levels, which in this group appear to be rather independent of body composition.
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Affiliation(s)
- P Magni
- Dipartimento di Endocrinologia, Fisiopatologia e Biologia Applicata, Università degli Studi di Milano, Italy.
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Corbo M, Lunetta C, Magni P, Dozio E, Ruscica M, Adobbati L, Silani V. Free insulin-like growth factor (IGF)-1 and IGF-binding proteins-2 and -3 in serum and cerebrospinal fluid of amyotrophic lateral sclerosis patients. Eur J Neurol 2009; 17:398-404. [PMID: 19845745 DOI: 10.1111/j.1468-1331.2009.02815.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND The insulin-like growth factor-1 (IGF-1) signaling system is regulated by many factors which interact in regulating the bioavailability of IGF-I. In this context, little information is available on free IGF-1, the bioactive form of IGF-1, in amyotrophic lateral sclerosis (ALS). METHODS We investigated the endogenous expression of IGF-1, and two related binding proteins (IGF-binding proteins, IGFBP-2 and BP-3) in serum and cerebrospinal fluid (CSF) of 54 sporadic ALS (sALS) patients. Twenty-five healthy individuals and 25 with other neurological diseases (OND) were used as controls. Total and free IGF-1, and IGFBP-3 levels were detected by immunoradiometric assay (IRMA); IGFBP-2 levels were determined by radioimmunoassay (RIA). RESULTS Total and free IGF-1, IGFBP-2 and BP-3 serum levels were not significantly different between patients and controls, although in sALS patients free IGF-1 was negatively correlated with ALS-Functional Rating Scale-revised (ALS-FRS-R) score (r = -0.4; P = 0.046) and forced vital capacity (FVC) (r = -0.55; P < 0.04). In CSF, free IGF-1 was significantly increased in sALS patients compared with OND (P < 0.0001). CONCLUSIONS Though in the serum we did not find significant differences amongst the three groups, IGF-1 bioavailability, represented by the free IGF-1 levels, correlated with disease severity. In the CSF, the significant increment of the free fraction of IGF-1 suggests an up-regulation of the IGF-1 system in the intrathecal compartment of sALS patients. Since IGF-1 is a trophic factor for different tissues, we speculate that high levels of the free IGF-1 in sALS might reflect a physiological defensive mechanism promoted in response to neural degeneration and/or muscle atrophy.
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Affiliation(s)
- M Corbo
- Department of Neurology and Lab. Neuroscience, 'Dino Ferrari' Center, University of Milan, IRCCS Istituto Auxologico Italiano, Milan, Italy.
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Abstract
Food intake and energy homeostasis are controlled by peripheral humoral signals, afferent neuronal pathways to the brain and central signals, represented, in particular, by neuropeptides. This review reports the status of development of novel compounds targeting some hypothalamic neuropeptide systems which are currently viewed as potential targets to treat obesity.
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Affiliation(s)
- E Dozio
- Istituto di Endocrinologia, Universita' degli Studi di Milano, via G. Balzaretti, 9, 20133 Milano-Italy
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Abstract
OBJECTIVE Aging is associated with appetite decline, weight loss, reduced fat-free mass (FFM), and increased fat mass (FM). Ghrelin and leptin are short- and long-term determinants of energy balance respectively, whose dysregulation could alter food intake. We evaluate the relationship of circulating ghrelin and leptin responses to standardized oral mixed nutrient load (SOMNL) with body composition, daily food intake, and insulin sensitivity in healthy elderly subjects (ES). DESIGN AND METHODS Twenty-six ES (12/14 M/F, 69+/-4 years) and ten young healthy controls (LY) (5/5 M/F, 27+/-3 years) were studied at the International Center for the Assessment of Nutritional Status (Milan, Italy) with air plethysmography, dual energy X-ray absorptiometry, indirect calorimetry, and dietary intake assessment. Basal and postprandial ghrelin, leptin, testosterone, glucose, insulin and C-peptide concentrations, and insulin resistance (homeostasis model assessment (HOMA-R)) and sensitivity (quantitative insulin-sensitivity check index (QUICKI)) were evaluated. RESULTS Basal ghrelin levels were similar in ES and LY, whereas leptin was higher in ES than LY, in agreement with the higher amount of FM. Basal and percentage change in ghrelin were inversely related to FFM, appendicular skeletal muscle mass (SMM), and QUICKI, but not to FM. Basal and percentage change in leptin were directly related to FM and not to FFM indexes. Ghrelin basal concentration was negatively correlated with energy and protein intake and with QUICKI. Percentage change in Ghrelin after SOMNL correlated negatively with protein intake, but positively with resting energy expenditure and energy intake, and glucose, insulin, C-peptide basal concentrations, and HOMA-R. CONCLUSION In ES, basal and postprandial ghrelin increases with FFM, specifically SMM, reduction, whereas leptin increases with relative FM increases.
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Affiliation(s)
- S Bertoli
- International Center for the Assessment of Nutritional Status (ICANS), Istituto di Endocrinologia, Università degli Studi di Milano, Italy.
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Dozio E, Watanobe H, Ruscica M, Maggi R, Motta M, Magni P. Expression of functional ciliary neurotrophic factor receptors in immortalized gonadotrophin-releasing hormone-secreting neurones. J Neuroendocrinol 2005; 17:286-91. [PMID: 15869563 DOI: 10.1111/j.1365-2826.2005.01309.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [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: 11/30/2022]
Abstract
Ciliary neurotrophic factor (CNTF), a cytokine of the interleukin-6 superfamily, is known to exert pleiotropic actions, including regulation of food intake and permissive effects on reproduction, by facilitating the release of gonadotrophin-releasing hormone (GnRH) and gonadotrophins. CNTF activates membrane receptors (CNTF-Rs) composed of one ligand-specific binding subunit, defined CNTFR alpha, and two signal transducing subunits, termed leukaemia inhibitory factor receptor (LIFR) and gp130. However, it is not clear whether the effects of CNTF on GnRH release result from either a direct or an indirect action on GnRH-secreting hypothalamic neurones, or from a combination of these events. The hypothesis of a direct effect of CNTF was thus tested using the GT1-7 GnRH-secreting cell line. CNTF-R expression and CNTF-induced modulation of the Janus kinase (JAK2)-signal transducer and activator of transcription 3 (STAT3) pathway and of GnRH release were evaluated. GT1-7 cells were found to express CNTFR alpha, LIFR and gp130 genes, as shown by reverse transcription-polymerase chain reaction analysis, and the corresponding proteins, analysed by immunofluorescence and western blot. CNTFR alpha, LIFR and gp130 immunoreactive bands had an approximate size of 50, 190 and 130 kDa, respectively. Treatment of GT1-7 cells with 10(-12) M CNTF for 15-60 min resulted in a marked and transient increase of STAT3 phosphorylation via activation of JAK2. A 30-min exposure of GT1-7 cells to different CNTF concentrations increased the accumulation of GnRH into the culture medium, with a maximal effect at 10(-11) M. In conclusion, the present results provide new information about the regulation of the reproductive axis by CNTF, and suggest that it might operate at the hypothalamic level by directly influencing the activity of GnRH-secreting neurones, in addition to the possible indirect effects via interneurones proposed by previous studies.
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Affiliation(s)
- E Dozio
- Department of Endocrinology, Centre of Excellence on Neurodegenerative Diseases, University of Milan, Milan, Italy
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Magni P, Ruscica M, Dozio E, Roti E, Licastro F, Motta M, Corsi MM. Free and bound leptin in prepubertal children with Down's syndrome and different degrees of adiposity. Eur J Clin Nutr 2004; 58:1547-9. [PMID: 15162134 DOI: 10.1038/sj.ejcn.1602000] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To evaluate plasma total, free (FL) and protein-bound (BL) leptin in children with Down's syndrome (DS) and different degrees of adiposity and its relationship with thyroid stimulating hormone (TSH), free thyroxine (FT(4)), and free triiodothyronine (FT(3)). SUBJECTS A total of 24 prepubertal clinically euthyroid DS children. METHODS Plasma leptin, TSH, FT(4), and FT(3) concentrations were determined by immunometric/radioimmunologic assays. FL and BL were evaluated by fast protein liquid chromatography. RESULTS In DS children, leptin circulates in two fractions, corresponding to BL and FL. The amount of BL and FL is negatively and positively correlated to body mass index (BMI), respectively. Plasma leptin concentrations correlate with BMI, but not with TSH, FT(4), and FT(3). CONCLUSIONS In prepubertal DS children, leptin circulates as both BL and FL, correlates with adiposity and its concentration appears independent of thyroid function.
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Affiliation(s)
- P Magni
- Department of Endocrinology, Centre of Excellence on Neurodegenerative Diseases, University of Milan, Milan, Italy.
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Dominioni L, Berizzi F, Besozzi MC, Dozio E, Imperatori A, Bianchi V, Dionigi R. [Immediate post-operative enteral nutrition]. Chir Ital 1994; 46:36-41. [PMID: 8521539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Patients with cancer of the upper digestive tract may present with malnutrition, which may cause immunodepression and an increased rate of postoperative complications. In this study we describe the rationale and the feasibility of immediate postoperative enteral nutrition (NEPI) and evaluate its effectiveness for the nutritional support of patients undergoing surgery of the upper digestive tract. We studied 46 patients undergoing the following procedures: total gastrectomy (n = 22); oesophageal resection (n = 12); duodenocephalopancreasectomy (n = 12). NEPI was started on postoperative day 0 with a polymeric diet (calories: 53% as CHO, 22% as proteins, 25% as lipids) aiming at a calorie intake of 25 Kcal/Kg/day by postoperative day 4. It was possible to administer 24 Kcal/kg/day with the enteral diet from the 4th to the 10th postoperative day. Oral intake was resumed on average on postoperative day 13, and the mean hospital stay was 27 +/- 17 days. Tolerance of NEPI was good in most patients: only 5 patients (11%) interrupted the enteral nutrition. The mean postoperative weight loss was 3.7%. The rate of septic complications was 27%; mortality was nil. The surgical procedures caused a transient and reversible acute-phase decrease of nutritional and immunological parameters in the early postoperative period. However the NEPI preserved the nutritional status postoperatively as shown by the lack of significant changes in the nutritional indices at 10-14 days after surgery, as compared with baseline. In summary, we documented that NEPI can be started from postoperative day 0 with good intestinal tolerance, allowing adequate nutritional support, after extensive surgical procedures on the upper digestive tract.
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Affiliation(s)
- L Dominioni
- Clinica Chirurgica, Ospedale Multizonale Fondazione E. Macchi, Varese, Università degli Studi di Pavia
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Salas JS, Dozio E, Goulet OJ, Marti-Henneberg C, Moukarzel E, Ricour C. Energy expenditure and substrate utilization in the course of renutrition of malnourished children. JPEN J Parenter Enteral Nutr 1991; 15:288-93. [PMID: 1907677 DOI: 10.1177/0148607191015003288] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Energy expenditure (EE) and substrate utilization in the course of renutrition of malnourished children is not well understood in children receiving total parenteral nutrition (TPN). The aim of this study was to evaluate, during protein-glucose renutrition, EE and substrate utilization and the relationship between EE and growth and/or protein metabolism. Seven malnourished children were studied during the first 3 weeks of TPN. Weight-for-height = 81.4 +/- 8.0%, with an initial weight of 4.5 +/- 3.3 kg. Caloric support was progressively increased according to a preestablished protocol. Every 7 days the following were determined: (1) EE at 3 different 3-hour intervals per day using an open circuit indirect calorimetric system, (2) anthropometrically defined fat free mass (FFM), and (3) 24-hour urinary 3-methylhistidine (3-M-His) and protein balance. Compared to initial values, EE increased 13% at day 7 and 36% at day 14. A negative relationship was found between the amount of perfused glucose and lipid utilization (r = -0.82; p less than 0.0001). EE per kilogram of total body FFM changes during renutrition were more than EE changes per kilogram of total body weight. There was a relationship between EE and weight gain (r = 0.62; p less than 0.005) and a positive relationship between EE and protein gain (r = 0.48; p = 0.012) and 3-M-His excretion (r = 0.51; p less than 0.026).(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- J S Salas
- Unité de Réanimation Digestive et d'Assistance Nutritive, CNRS URA 213, Hôpital Necker, Paris, France
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Salas JS, Moukarzel E, Dozio E, Goulet OJ, Putet G, Ricour C. Estimating resting energy expenditure by simple lean-body-mass indicators in children on total parenteral nutrition. Am J Clin Nutr 1990; 51:958-62. [PMID: 2112340 DOI: 10.1093/ajcn/51.6.958] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The aim of this study was to determine simple predictive factors of the resting energy expenditure (REE) in children. Two groups, A (n = 14) and B (n = 23), were defined by their weight-for-height index, less than 90% and greater than 90%, respectively. Anthropometrically assessed lean body mass (LBM), 24-h urinary creatinine, and REE were measured. From multiple-regression analysis, the best-fitting equation for calculating REE (REE = 54.4 LBM (kg) + 0.095 creatinine (mmol/kg) + 4.7) was highly significant (r = 0.987, p less than 0.0001). Although the regressions of REE on weight were significantly different between the two groups, the equations using LBM or 24-h urinary creatinine did not discriminate between them. These findings suggest that an equation based on LBM or 24-h urinary creatinine excretion could be a more accurate estimate of REE than are conventional methods based on weight or height, and it may be applicable to diverse nutritional states.
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Affiliation(s)
- J S Salas
- Unité de Réanimation Digestive et d'Assistance Nutritive, Hôpital Necker, Paris, France
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