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Gasparello J, Lamberti N, Papi C, Lampronti I, Cosenza LC, Fabbri E, Bianchi N, Zambon C, Dalla Corte F, Govoni M, Reverberi R, Manfredini F, Gambari R, Finotti A. Altered erythroid-related miRNA levels as a possible novel biomarker for detection of autologous blood transfusion misuse in sport. Transfusion 2019; 59:2709-2721. [PMID: 31148196 DOI: 10.1111/trf.15383] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 04/01/2019] [Accepted: 04/11/2019] [Indexed: 12/26/2022]
Abstract
BACKGROUND Autologous blood transfusion (ABT) is a performance-enhancing method prohibited in sport; its detection is a key issue in the field of anti-doping. Among novel markers enabling ABT detection, microRNAs (miRNAs) might be considered a promising analytical tool. STUDY DESIGN AND METHODS We studied the changes of erythroid-related microRNAs following ABT, to identify novel biomarkers. Fifteen healthy trained males were studied from a population of 24 subjects, enrolled and randomized into a Transfusion (T) and a Control (C) group. Seriated blood samples were obtained in the T group before and after the two ABT procedures (withdrawal, with blood refrigerated or cryopreserved, and reinfusion), and in the C group at the same time points. Traditional hematological parameters were assessed. Samples were tested by microarray analysis of a pre-identified set of erythroid-related miRNAs. RESULTS Hematological parameters showed moderate changes only in the T group, particularly following blood withdrawal. Among erythroid-related miRNAs tested, following ABT a pool of 7 miRNAs associated with fetal hemoglobin and regulating transcriptional repressors of gamma-globin gene was found stable in C and differently expressed in three out of six T subjects in the completed phase of ABT, independently from blood conservation. Particularly, two or more erythropoiesis-related miRNAs within the shortlist constituted of miR-126-3p, miR-144-3p, miR-191-3p, miR-197-3p, miR-486-3p, miR-486-5p, and miR-92a-3p were significantly upregulated in T subjects after reinfusion, with a person-to-person variability but with congruent changes. CONCLUSIONS This study describes a signature of potential interest for ABT detection in sports, based on the analysis of miRNAs associated with erythroid features.
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Affiliation(s)
- Jessica Gasparello
- Department of Life Sciences and Biotechnologies, Section of Biochemistry and Molecular Biology, University of Ferrara, Ferrara, Italy
| | - Nicola Lamberti
- Department of Biomedical and Surgical Specialties Sciences, Section of Sport Sciences, University of Ferrara, Ferrara, Italy
| | - Chiara Papi
- Department of Life Sciences and Biotechnologies, Section of Biochemistry and Molecular Biology, University of Ferrara, Ferrara, Italy
| | - Ilaria Lampronti
- Department of Life Sciences and Biotechnologies, Section of Biochemistry and Molecular Biology, University of Ferrara, Ferrara, Italy
| | - Lucia Carmela Cosenza
- Department of Life Sciences and Biotechnologies, Section of Biochemistry and Molecular Biology, University of Ferrara, Ferrara, Italy
| | - Enrica Fabbri
- Department of Life Sciences and Biotechnologies, Section of Biochemistry and Molecular Biology, University of Ferrara, Ferrara, Italy
| | - Nicoletta Bianchi
- Department of Life Sciences and Biotechnologies, Section of Biochemistry and Molecular Biology, University of Ferrara, Ferrara, Italy
| | - Christel Zambon
- Department of Biomedical and Surgical Specialties Sciences, Section of Sport Sciences, University of Ferrara, Ferrara, Italy
| | - Francesca Dalla Corte
- Immunohematological and Transfusional Service, University Hospital of Ferrara, Ferrara, Italy
| | - Maurizio Govoni
- Immunohematological and Transfusional Service, University Hospital of Ferrara, Ferrara, Italy
| | - Roberto Reverberi
- Immunohematological and Transfusional Service, University Hospital of Ferrara, Ferrara, Italy
| | - Fabio Manfredini
- Department of Biomedical and Surgical Specialties Sciences, Section of Sport Sciences, University of Ferrara, Ferrara, Italy
| | - Roberto Gambari
- Department of Life Sciences and Biotechnologies, Section of Biochemistry and Molecular Biology, University of Ferrara, Ferrara, Italy
| | - Alessia Finotti
- Department of Life Sciences and Biotechnologies, Section of Biochemistry and Molecular Biology, University of Ferrara, Ferrara, Italy
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Lamberti N, Finotti A, Gasparello J, Lampronti I, Zambon C, Cosenza LC, Fabbri E, Bianchi N, Dalla Corte F, Govoni M, Reverberi R, Gambari R, Manfredini F. Changes in hemoglobin profile reflect autologous blood transfusion misuse in sports. Intern Emerg Med 2018; 13:517-526. [PMID: 29572786 DOI: 10.1007/s11739-018-1837-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 03/16/2018] [Indexed: 12/18/2022]
Abstract
The changes in hemoglobin (Hb) profile following autologous blood transfusion (ABT) for the first time were studied for anti-doping purposes. Twenty-four healthy, trained male subjects (aged 18‒40) were enrolled and randomized into either the transfusion (T) or control (C) groups. Blood samples were taken from the T subjects at baseline, after withdrawal and reinfusion of 450 ml of refrigerated or cryopreserved blood, and from C subjects at the same time points. Hematological variables (Complete blood count, Reticulocytes, Immature Reticulocytes Fraction, Red-cell Distribution Width, OFF-hr score) were measured. The Hb types were analyzed by high-performance liquid chromatography and the Hemoglobin Profile Index (HbPI) arbitrarily calculated. Between-group differences were observed for red blood cells and reticulocytes. Unlike C, the T group, after withdrawal and reinfusion, showed a significant trend analysis for both hematological variables (Hemoglobin concentration, reticulocytes, OFF-hr score) and Hb types (glycated hemoglobin-HbA1c, HbPI). The control charts highlighted samples with abnormal values (> 3-SD above/below the population mean) after reinfusion for hematological variables in one subject versus five subjects for HbA1c and HbPI. A significant ROC-curve analysis (area = 0.649, p = 0.015) identified a HbA1c cut-off value ≤ 2.7% associated to 100% specificity of blood reinfusion (sensitivity 25%). Hemoglobin profile changed in trained subjects after ABT, with abnormal values of HbA1c and HbPI in 42% of subjects after reinfusion. Future studies will confirm the usefulness of these biomarkers in the anti-doping field.
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Affiliation(s)
- Nicola Lamberti
- Section of Sport Sciences, Department of Biomedical and Surgical Specialties Sciences, University of Ferrara, Italy, Via Gramicia 35, 44124, Ferrara, Italy
| | - Alessia Finotti
- Section of Biochemistry and Molecular Biology, Department of Life Sciences and Biotechnologies, University of Ferrara, Italy, Via Fossato di Mortara 74, 44124, Ferrara, Italy
| | - Jessica Gasparello
- Section of Biochemistry and Molecular Biology, Department of Life Sciences and Biotechnologies, University of Ferrara, Italy, Via Fossato di Mortara 74, 44124, Ferrara, Italy
| | - Ilaria Lampronti
- Section of Biochemistry and Molecular Biology, Department of Life Sciences and Biotechnologies, University of Ferrara, Italy, Via Fossato di Mortara 74, 44124, Ferrara, Italy
| | - Christel Zambon
- Section of Sport Sciences, Department of Biomedical and Surgical Specialties Sciences, University of Ferrara, Italy, Via Gramicia 35, 44124, Ferrara, Italy
| | - Lucia Carmela Cosenza
- Section of Biochemistry and Molecular Biology, Department of Life Sciences and Biotechnologies, University of Ferrara, Italy, Via Fossato di Mortara 74, 44124, Ferrara, Italy
| | - Enrica Fabbri
- Section of Biochemistry and Molecular Biology, Department of Life Sciences and Biotechnologies, University of Ferrara, Italy, Via Fossato di Mortara 74, 44124, Ferrara, Italy
| | - Nicoletta Bianchi
- Section of Biochemistry and Molecular Biology, Department of Life Sciences and Biotechnologies, University of Ferrara, Italy, Via Fossato di Mortara 74, 44124, Ferrara, Italy
| | - Francesca Dalla Corte
- Immunohematological and Transfusional Service, University Hospital of Ferrara, Via Aldo Moro 8, Ferrara, Italy
| | - Maurizio Govoni
- Immunohematological and Transfusional Service, University Hospital of Ferrara, Via Aldo Moro 8, Ferrara, Italy
| | - Roberto Reverberi
- Immunohematological and Transfusional Service, University Hospital of Ferrara, Via Aldo Moro 8, Ferrara, Italy
| | - Roberto Gambari
- Section of Biochemistry and Molecular Biology, Department of Life Sciences and Biotechnologies, University of Ferrara, Italy, Via Fossato di Mortara 74, 44124, Ferrara, Italy.
| | - Fabio Manfredini
- Section of Sport Sciences, Department of Biomedical and Surgical Specialties Sciences, University of Ferrara, Italy, Via Gramicia 35, 44124, Ferrara, Italy.
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Lamberti N, Straudi S, Malagoni AM, Argirò M, Felisatti M, Nardini E, Zambon C, Basaglia N, Manfredini F. Effects of low-intensity endurance and resistance training on mobility in chronic stroke survivors: a pilot randomized controlled study. Eur J Phys Rehabil Med 2016; 53:228-239. [PMID: 27626795 DOI: 10.23736/s1973-9087.16.04322-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Chronic stroke survivors are exposed to long-term disability and physical deconditioning, effects that may impact their independence and quality of life. Community-based programs optimizing the dose of exercise therapy that are simultaneously low risk and able to achieve high adherence should be identified. AIM We tested the hypothesis that an 8-week, community-based, progressive mixed endurance-resistance exercise program at lower cardiovascular and muscular load yielded more mobility benefits than a higher-intensity program in chronic stroke survivors. DESIGN A two-arm, parallel-group, pilot randomized, controlled clinical trial. SETTING Hospital (recruitment); community-based adapted physical activity center (training). POPULATION Thirty-five chronic stroke patients (mean age: 68.4±10.4 years; 27 males). METHODS Participants were randomized to a low-intensity experimental (LI-E; N.=18) or a high-intensity active control group (HI-C; N.=17). Patients in the LI-E group performed over-ground intermittent walking (weeks 1-8) and muscle power training with portable tools (weeks 5-8); patients in the HI-C group executed treadmill walking (weeks 1-8) and strength training with gym machines (weeks 5-8). Changes in mobility, assessed using the 6-Minute Walking Distance test, were the primary outcome. Secondary outcomes included quality of life (Short-Form-36 Questionnaire), gait speed (10-Meter Walking Test), balance (Berg Balance Scale) and muscle performance of the lower limbs (strength and power of the quadriceps and femoral biceps). RESULTS After 8 weeks, the 6MWD revealed more improvement for the LI-E group than the HI-C group (P=0.009). The SF36 physical activity domain (P=0.012) and peak power of the femoral quadriceps and biceps were also significantly improved for the LI-E group (P=0.008 and P<0.001, respectively) compared with the HI-C. Gait speed, balance and lower-limb strength increased in both groups; no significant differences were noted. The muscle power of the affected limb was the muscle parameter most correlated with mobility in the entire population. CONCLUSIONS A low-intensity exercise program exhibited better results in terms of mobility, quality of life and muscle power compared with a higher-intensity program. Data need to be confirmed in a larger trial. CLINICAL REHABILITATION IMPACT The effectiveness, low-intensity and possible implementation in poorly equipped community-based settings make the LI-E program potentially suitable for stroke survivors and frail individuals.
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Affiliation(s)
- Nicola Lamberti
- Department of Biomedical Sciences and Surgical Specialties, Section of Sport Sciences, University of Ferrara, Ferrara, Italy
| | - Sofia Straudi
- Department of Rehabilitation Medicine, Ferrara University Hospital, Ferrara, Italy
| | - Anna Maria Malagoni
- Vascular Diseases Center, Unit of Translational Surgery, Ferrara University Hospital, Ferrara, Italy -
| | - Matteo Argirò
- Department of Biomedical Sciences and Surgical Specialties, Section of Sport Sciences, University of Ferrara, Ferrara, Italy
| | | | - Eleonora Nardini
- Department of Biomedical Sciences and Surgical Specialties, Section of Sport Sciences, University of Ferrara, Ferrara, Italy
| | - Christel Zambon
- Department of Biomedical Sciences and Surgical Specialties, Section of Sport Sciences, University of Ferrara, Ferrara, Italy
| | - Nino Basaglia
- Department of Rehabilitation Medicine, Ferrara University Hospital, Ferrara, Italy
| | - Fabio Manfredini
- Department of Biomedical Sciences and Surgical Specialties, Section of Sport Sciences, University of Ferrara, Ferrara, Italy.,Department of Rehabilitation Medicine, Ferrara University Hospital, Ferrara, Italy
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Malagoni AM, Lamberti N, Carrabre JE, Litmanen H, Jeannier P, Zhukovskaja L, Dal Follo D, Zambon C, Resch N, Manfredini F. Planning the International Competition Schedules for the Health of Elite Athletes: A 21-Year Retrospective Study Evaluating the Effectiveness and Economic Impact in an Olympic Sport. PLoS One 2015; 10:e0130338. [PMID: 26115423 PMCID: PMC4482751 DOI: 10.1371/journal.pone.0130338] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 05/19/2015] [Indexed: 11/18/2022] Open
Abstract
Background The increased number of trips and competitions scheduled in the international agonistic calendars meets commercial demands while acting as a source of stress for the athletes. A model, developed in biathlons to monitor the so-called competition load, revealed an upward trend over time. The aim of this study was to evaluate, in a 21-year period, the effects of the International Biathlon Union’s rescheduling of the competitive calendars to control the competition load, as well as its stability over time and the economic impact of this intervention. Methods For each season competition, the load factors from the international agonistic calendar (number of venues/events, competition days/distance) were considered, and the athletes’ daily and maximal stress scores were calculated. The calendar rescheduling, which started in 2001, involved the length of competitions, number of resting days and frequency of travels. Data from the period pre (1994–2000) and post (2001–2007) the intervention, as well as follow-up (2008–2015), were compared and analyzed in relation to the federation’s budget. Results The competition load and athletes’ daily stress score progressively increased pre, plateaued post and remained stable in follow-up. Their annual variations within the final two periods were significantly lower than in the pre period, in spite of the higher average values. The maximal stress score decreased over time. The direct correlation between most of the competition load factors with the economic budget present in pre was lost in post and follow-up. Similarly, the athletes’ daily stress score had a stable trend in post and follow-up, while budget continued to increase. Conclusions The management of an athlete’s potential source of stress by an international federation stabilized the competition load over time, but it did not affect the budget. Furthermore, it uncoupled the relationship between the athlete’s effort and federation income.
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Affiliation(s)
| | - Nicola Lamberti
- Department of Biomedical Sciences and Surgical Specialties, Section of Sport Sciences, University of Ferrara, Ferrara, Italy
| | | | | | | | | | | | - Christel Zambon
- Department of Biomedical Sciences and Surgical Specialties, Section of Sport Sciences, University of Ferrara, Ferrara, Italy
| | | | - Fabio Manfredini
- International Biathlon Union, Salzburg, Austria
- Department of Biomedical Sciences and Surgical Specialties, Section of Sport Sciences, University of Ferrara, Ferrara, Italy
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Manfredini F, Lamberti N, Malagoni AM, Zambon C, Basaglia N, Mascoli F, Manfredini R, Zamboni P. Reliability of the Vascular Claudication Reporting in Diabetic Patients With Peripheral Arterial Disease. Angiology 2014; 66:365-74. [DOI: 10.1177/0003319714534762] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [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]
Abstract
We evaluated whether altered reporting of ischemic symptoms occurs in diabetic patients with peripheral arterial disease (PAD) and stable claudication. Patients (n = 152) with claudication were enrolled (120 males; mean age: 71.0 ± 8.6 years): 74 with diabetes (DM-PAD) and 78 without (DMfree-PAD). The degree of muscle oxygenation at symptom onset and maximal speed (Smax) during an incremental treadmill test was recorded at the gastrocnemius by near-infrared spectroscopy (NIRS) and quantified by area under the curve of oxygenated hemoglobin (AUC-Hbo2) and area under the curve of differential hemoglobin (AUC-dHb). The DM-PAD and DMfree-PAD showed similar exercise capacities inversely correlated with the degree of muscle oxygenation but significantly lower values of AUC-Hbo2 and AUC-dHb for DM-PAD at symptom onset and Smax (−356 vs −122 and −1200 vs −359, P < .0001). During a NIRS-assisted test, the report of claudication in the presence of diabetes was delayed, occurring at a lower degree of oxygenation than in patients with PAD only, with potential implications for testing, functional staging, and balance disorders.
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Affiliation(s)
- Fabio Manfredini
- Vascular Diseases Center, University of Ferrara, Italy
- Department of Rehabilitation Medicine, S. Anna Hospital University, Ferrara, Italy
| | | | - Anna Maria Malagoni
- Vascular Diseases Center, University of Ferrara, Italy
- Program Pathophysiology of Vascular Peripheral System and Day Surgery, S. Anna Hospital University, Ferrara, Italy
| | | | - Nino Basaglia
- Department of Rehabilitation Medicine, S. Anna Hospital University, Ferrara, Italy
| | | | - Roberto Manfredini
- Vascular Diseases Center, University of Ferrara, Italy
- Department of Medical Sciences, Clinica Medica, University of Ferrara, Italy
| | - Paolo Zamboni
- Vascular Diseases Center, University of Ferrara, Italy
- Program Pathophysiology of Vascular Peripheral System and Day Surgery, S. Anna Hospital University, Ferrara, Italy
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Zambon C, Navaglia F, Basso D, Gallo N, Greco E, Piva MG, Fogar P, Pasquali C, Pedrazzoli S, Plebani M. ME-PCR for the identification of mutated K-ras in serum and bile of pancreatic cancer patients: an unsatisfactory technique for clinical applications. Clin Chim Acta 2000; 302:35-48. [PMID: 11074062 DOI: 10.1016/s0009-8981(00)00351-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [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: 11/17/2022]
Abstract
Our aim was to assess the clinical reliability of mutated K-ras detection in serum or bile for the diagnosis of pancreatic cancer using ME-PCR. DNA was extracted from 1 ml serum obtained from 29 patients with pancreatic cancer and 12 control subjects. ME-PCR was optimized using a mixture of normal DNA added with different amounts of mutated DNA. The analysis of sera obtained from the 29 patients and of bile obtained from 11 pancreatic cancer patients demonstrated the presence of mutated K-ras in two (6.9%) and four cases (36%). By contrast K-ras was not amplifiable in any of the 12 serum samples obtained from healthy controls. In conclusion the DNA obtained from pancreatic cancer patients' sera is suitable for K-ras amplification and for the identification of codon 12 point mutations. However ME-PCR alone has an unsatisfactory sensitivity for the detection of pancreatic cancer using serum DNA as starting template.
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Affiliation(s)
- C Zambon
- Department of Laboratory Medicine, University of Padova, Padova, Italy
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Moro E, Alessandrini P, Zambon C, Pianetti S, Pais M, Cazzolato G, Bon GB. Is glycation of low density lipoproteins in patients with Type 2 diabetes mellitus a LDL pre-oxidative condition? Diabet Med 1999; 16:663-9. [PMID: 10477211 DOI: 10.1046/j.1464-5491.1999.00136.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.6] [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: 11/20/2022]
Abstract
AIMS The study aimed to evaluate whether low density lipoprotein (LDL) in diabetic patients is more glycated and susceptible to oxidation than in non-diabetic subjects and investigated the hypothesis that LDL glycation is associated with an increased plasma concentration of LDL- (a circulating electronegatively charged LDL), proposed as an index of in vivo oxidation. METHODS LDL glycation was measured by a competitive enzyme immunoadsorbent assay, using a monoclonal antibody against glycated apoB in 24 Type 2 diabetic patients and 12 healthy controls. LDL- was separated by ion-exchange HPLC in LDL samples obtained after sequential preparative ultracentrifugation (density range 1.019-1.063). In vitro LDL susceptibility to oxidation was evaluated by following the kinetics of conjugated diene formation and by measuring the lag-phase time in the presence of copper (Cu2+) ions. RESULTS The percentages of glycated apoB (3.33+/-2.54% vs. 1.24+/-0.71%) and of LDL- (3.88+/-1.49% vs. 2.34+/-1.03%) in total LDL were significantly higher in diabetic patients (P<0.01 for both). LDL- was positively correlated with glycated apoB (r = 0.68, P<0.001). LDL isolated from Type 2 diabetic patients showed a significant decrease (P<0.001) in the resistance to oxidative stress, as indicated by the shorter lag-phase time (91+/-12.6 vs. 120+/-24.5 min). The lag-phase time was inversely correlated with glycated apoB (r = -0.65, P<0.001) and LDL- concentrations (r = -0.69, P<0.001). CONCLUSIONS In this population of Type 2 diabetic patients, LDL were more glycated, more susceptible to in vitro oxidation and had a higher percentage of electronegative LDL. The glycation of apoB is proposed to be associated with a significative increase of in vivo and in vitro LDL oxidation.
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Affiliation(s)
- E Moro
- 2nd Department of Internal Medicine and Metabolic Diseases, Venice General Hospital, Italy
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Moro E, Zambon C, Pianetti S, Cazzolato G, Pais M, Bittolo Bon G. Electronegative low density lipoprotein subform (LDL-) is increased in type 2 (non-insulin-dependent) microalbuminuric diabetic patients and is closely associated with LDL susceptibility to oxidation. Acta Diabetol 1998; 35:161-4. [PMID: 9840454 DOI: 10.1007/s005920050123] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [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: 10/28/2022]
Abstract
There is increasing evidence that diabetes mellitus is characterized by an enhanced lipoprotein oxidation. We have therefore investigated whether a relationship exists between LDL oxidation and microalbuminuria, which is considered an early marker of vascular involvement in type 2 diabetic patients. We selected 12 microalbuminuric and 12 normoalbuminuric type 2 diabetic patients, and 12 control subjects comparable for age, sex and blood pressure values. Oxidatively modified plasma LDL, referred as LDL-, were measured by ion-exchange HPLC. In vitro susceptibility to oxidation of LDL was evaluated by following the kinetics of conjugated diene formation in the presence of Cu++ ions (lag-phase time). Microalbuminuric diabetic patients had a less satisfactory metabolic control and showed a higher plasma triglyceride concentration than both normoalbuminuric diabetic patients (2.211+/-1.01 vs 1.15+/-0.39 mmol/l, P<0.O1) and controls (1.18+/-0.61 mmol/l, P<0.01 ). The percentage of LDL- in plasma was significantly increased in microalbuminuric diabetic patients in comparison with both normoalbuminuric diabetic patients (5.24+/-1.67 vs 3.13+/-1.22%, P<0.01) and controls (2.34+/-1.03%, P<0.001). LDL isolated from microalbuminuric diabetic patients had a significantly shorter lag-phase time in comparison with normoalbuminuric diabetic patients (79+/-11 vs 97+/-10 min, P<0.05) and controls (120+/-24 min. P<0.001). In diabetic patients a significant linear correlation was observed between the percentage of LDL and amount of fructosamine (r=0.45, P<0.05), HbA1c (r=0.41, P<0.05), and triglycerides (r=0.65, P<0.001). An inverse correlation was found between lag-phase time and fructosamine (r=-0.5, P<0.01) and triglycerides (r=-0.59, P<0.001). This study shows that microalbuminuric type 2 diabetic patients had evidence of increased LDL oxidation, which seems to be mainly due to a poor metabolic control and a more atherogenic lipid profile.
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Affiliation(s)
- E Moro
- Second Department of Internal Medicine and Metabolic Diseases, Regional General Hospital, Venice, Italy
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Moro E, Zambon C. [Evaluation of gastric acid secretion in a group of patients with hypothyroidism. Relationship with anti-thyroid and anti-parietal cell antibodies]. MINERVA GASTROENTERO 1998; 44:67-71. [PMID: 16495885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
BACKGROUND Aim of this study was to evaluate the possible role of autoimmunity on gastric acid secretion in hypothyroid patients. METHODS Fourteen female patients with hypothyroidism were evaluated with a basal and stimulated gastric acid secretion measurement. Eight of these patients had a significantly elevated titer of anti-microsomal, anti-thyroglobulin and anti-parietal cell antibodies (PCA), while six were autoantibodies negative. All hypothyroid patients were on thyroxin therapy with normal TSH value. Two more groups of female euthyroid subjects, undergoing acid secretion measurement, were considered: the first composed of 8 PCA positive subjects, the second of 18 PCA negative subjects. In all patients and controls basal acid output (BAO), maximal acid output (MAO) and peak acid output (PAO) were measured. RESULTS We found a statistically significant reduction of BAO (p<0.05), MAO (p<0.001) and PAO (p<0.0001) values in hypothyroid patients, in comparison with euthyroid controls without PCA, only when anti-thyroid and anti-parietal cell antibodies were present. A statistically significant reduction of BAO (p<0.05) and PAO (p<0.01) values were also present in controls PCA positive in comparison with controls PCA negative. CONCLUSIONS The results obtained that hypothyroid patients have a reduced gastric acid secretion only in presence of anti-thyroid and anti-parietal cell antibodies. It is suggested that PCA could determine, in hypothyroid patients, a significative reduction of gastric parietal cells not different from that observed in controls with PCA.
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Affiliation(s)
- E Moro
- Divisione di Medicina Generale II e Malattie del Ricambio, Ospedale Civile, Venezia
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Napoletano M, Delia BD, Fraire C, Grancini G, Masotto C, Ricciardi S, Zambon C. Stereoselective synthesis and evaluation of all stereoisomers of Z4349, a novel and selective μ-opioid analgesic. Bioorg Med Chem Lett 1995. [DOI: 10.1016/0960-894x(95)00077-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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