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Semen quality and metabolic profile in people with type 1 diabetes with and without erectile dysfunction: a cross-sectional study. J Endocrinol Invest 2024:10.1007/s40618-023-02285-z. [PMID: 38225528 DOI: 10.1007/s40618-023-02285-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 12/14/2023] [Indexed: 01/17/2024]
Abstract
PURPOSE The aim of the present study is to evaluate the association of metabolic and glycemic variables with semen parameters in patients with type 1 diabetes (T1D) with and without erectile dysfunction (ED). METHODS The study population included 88 adults with T1D using a continuous glucose monitoring, of whom 28 with ED (ED group) and 60 without it (NO ED group). All men completed the International Index of Erectile Function (IIEF-5) and underwent body composition analysis (BIA) and semen analysis. RESULTS ED group showed worse HbA1c levels [median (IQR), 8.4 (7.7, 9.9) vs 7.4 (7, 8.2) %, P < 0.001)], higher insulin dose [60 (51, 65) vs 45 (38, 56) UI/die, P = 0.004)] and a higher total body water and intracellular water as compared with ED group. Men in the ED group presented higher semen volume [2.8 (2.6, 4.2) vs 2.5 (2.2, 2.7) mL, P < 0.001] and sperm concentration [24 (19, 29) vs 20 (12, 23) mil/mL, P = 0.010], but reduced sperm progressive motility [28 (25, 35) vs 35 (25, 36) %, P = 0.011], higher rate of non-progressive motility [15 (10, 15) vs 10 (5, 10) %, P < 0.001] and higher rate of typical morphology [7(5, 8) vs 5 (4, 5) %, P = 0.001]. Based on multivariate logistic regression analysis performed to assess the association between clinical variables and ED, intracellular water (OR 3.829, 95% CI 1.205, 12.163, P = 0.023) resulted as the only independent predictor of ED. CONCLUSION Men with T1D and ED showed worse metabolic profile which is associated with poor semen quality, as compared with those without ED.
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Semen quality and metabolic profile in people with type 1 diabetes with and without erectile dysfunction: a cross-sectional study. J Endocrinol Invest 2024. [DOI: https:/doi.org/10.1007/s40618-023-02285-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 12/14/2023] [Indexed: 03/28/2024]
Abstract
Abstract
Purpose
The aim of the present study is to evaluate the association of metabolic and glycemic variables with semen parameters in patients with type 1 diabetes (T1D) with and without erectile dysfunction (ED).
Methods
The study population included 88 adults with T1D using a continuous glucose monitoring, of whom 28 with ED (ED group) and 60 without it (NO ED group). All men completed the International Index of Erectile Function (IIEF-5) and underwent body composition analysis (BIA) and semen analysis.
Results
ED group showed worse HbA1c levels [median (IQR), 8.4 (7.7, 9.9) vs 7.4 (7, 8.2) %, P < 0.001)], higher insulin dose [60 (51, 65) vs 45 (38, 56) UI/die, P = 0.004)] and a higher total body water and intracellular water as compared with ED group. Men in the ED group presented higher semen volume [2.8 (2.6, 4.2) vs 2.5 (2.2, 2.7) mL, P < 0.001] and sperm concentration [24 (19, 29) vs 20 (12, 23) mil/mL, P = 0.010], but reduced sperm progressive motility [28 (25, 35) vs 35 (25, 36) %, P = 0.011], higher rate of non-progressive motility [15 (10, 15) vs 10 (5, 10) %, P < 0.001] and higher rate of typical morphology [7(5, 8) vs 5 (4, 5) %, P = 0.001]. Based on multivariate logistic regression analysis performed to assess the association between clinical variables and ED, intracellular water (OR 3.829, 95% CI 1.205, 12.163, P = 0.023) resulted as the only independent predictor of ED.
Conclusion
Men with T1D and ED showed worse metabolic profile which is associated with poor semen quality, as compared with those without ED.
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Case Report: Post-gastrectomy reactive hyperinsulinemic hypoglicaemia: glucose trends before and after canagliflozin treatment. Front Endocrinol (Lausanne) 2023; 14:1193696. [PMID: 37645417 PMCID: PMC10461623 DOI: 10.3389/fendo.2023.1193696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 06/14/2023] [Indexed: 08/31/2023] Open
Abstract
The pathogenesis of post-gastrectomy reactive hyperinsulinaemic hypoglycaemia is not yet fully clarified. Recent studies suggest an up-regulation of the intestinal glucose transporter SGLT-1 aimed to prevent carbohydrate malabsorption. The overexpression of SGLT-1 could therefore represents one of the mechanisms underlying the wide glycemic excursions found in patients after gastrectomy, but studies investigating the use of SGLT-1/SGLT-2 inhibitors in patients with post-gastrectomy reactive hyperinsulinemic hypoglycaemia are very scant in the literature. We report the case of a 37-year-old non diabetic man who frequently presented symptoms of hypoglycaemia in the postprandial period. In 2012, he underwent Roux en-Y gastric bypass (RYGB) and after two years, he started to experience typical symptoms of reactive hyperinsulinaemic hypoglycaemia. We suggested healthy modifications of dietary habits and periodic follow-up visits with a dietitian. After three months, the patient still presented symptoms of reactive hypoglycaemia; we provided him with Flash Glucose Monitoring (FGM) to assess trend of glucose levels in interstitial fluid during the day and we decided to introduce canagliflozin 300 mg/day before the main meal. Hypoglycaemic events previously referred by the patient and clearly recorded by FGM completely disappeared taking canagliflozin. We found a reduction of time spent in hypoglycaemia, an improvement of glycemic variability and an increase of time in target range. It was also noted a reduction of time spent in hyperglicemia with consequent improvement of average glucose values and of glucose main indicator. This is the first report with FGM supporting a role of canagliflozin in the management of post-gastrectomy reactive hyperinsulinaemic hypoglycaemia. Our preliminary results are very limited but in line with those of the literature and showed for the first time a reduction of hypoglycaemic events and an improvement of glycemic variability through a flash glucose monitoring system. Further studies are mandatory to confirm this therapeutic opportunity.
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Glucose control in home-isolated adults with type 1 diabetes affected by COVID-19 using continuous glucose monitoring. J Endocrinol Invest 2022; 45:445-452. [PMID: 34482534 PMCID: PMC8418789 DOI: 10.1007/s40618-021-01669-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 08/28/2021] [Indexed: 12/13/2022]
Abstract
PURPOSE This study is aimed at evaluating changes in metrics of glucose control in home-isolated patients with type 1 diabetes and COVID-19 using a continuous glucose monitoring (CGM) system. METHODS We included adults aged 18-45 years with type 1 diabetes, using CGM, followed by telemedicine at a Southern Italian University Hospital. Thirty-two home-quarantined subjects with SARS-CoV-2 positive swab constituted the COVID-19 group. Thirty age-matched diabetic individuals without COVID-19 formed the control group. The effects of COVID-19 on glycemic control in patients infected were assessed at different time points [2 weeks before-COVID-19 (Time 1), 2 weeks during-COVID-19 (Time 2) and 2 weeks after COVID-19 (Time 3)] and compared with those without infection. RESULTS A significant reduction of TIR (Time 1 vs Time 2, %, 60.1 ± 16.6 vs 55.4 ± 19.2, P = 0.03), associated with a significant increase of TAR level 2 (10.1 ± 7.3 vs 16.7 ± 12.9, P < 0.001), GMI (7.1 ± 0.6 vs 7.5 ± 0.8, P < 0.001), CV (37.3 ± 7.1 vs 39.6 ± 7.0, P = 0.04), mean glucose values (mg/dL, 160.2 ± 26.5 vs 175.5 ± 32.6, P = 0.001) and standard deviation (59.2 ± 13.1 vs 68.6 ± 17.7, P = 0.001) was observed in patients with COVID-19. No significant change of glycemic metrics was found in the NO COVID-19 group across the time. CONCLUSION Young home-isolated patients with type 1 diabetes and COVID-19 showed a worsening of glucose control during COVID-19, as compared with age-matched diabetic subjects without the infection.
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Abstract
PURPOSE During the COVID-19 pandemic, elective thyroid surgery is experiencing delays. The problem is that the COVID-19 pandemic is ongoing. The research purposes were to systematically collect the literature data on the characteristics of those thyroid operations performed and to assess the safety/risks associated with thyroid surgery during the COVID-19 pandemic. METHODS We used all the procedures consistent with the PRISMA guidelines. A comprehensive literature in MEDLINE (PubMed) and Scopus was made using ''Thyroid'' and "coronavirus" as search terms. RESULTS Of a total of 293 articles identified, 9 studies met the inclusion criteria. The total number of patients undergoing thyroid surgery was 2217. The indication for surgery was malignancy in 1347 cases (60.8%). Screening protocols varied depending on hospital protocol and maximum levels of personal protection equipment were adopted. The hospital length of stay was 2-3 days. Total thyroidectomy was chosen for 1557 patients (1557/1868, 83.4%), of which 596 procedures (596/1558, 38.3%) were combined with lymph node dissections. Cross-infections were registered in 14 cases (14/721, 1.9%), of which three (3/721, 0.4%) with severe pulmonary complications of COVID-19. 377 patients (377/1868, 20.2%) had complications after surgery, of which 285 (285/377, 75.6%) hypoparathyroidism and 71 (71/377, 18.8%) recurrent laryngeal nerve injury. CONCLUSION The risk of SARS-CoV-2 transmission after thyroid surgery is relatively low. Our study could promote the restart of planned thyroid surgery due to COVID-19. Future studies are warranted to obtain more solid data about the risk of complications after thyroid surgery during the COVID-19 era.
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New insights into vitamin D regulation: is there a role for alkaline phosphatase? J Endocrinol Invest 2021; 44:1891-1896. [PMID: 33492600 PMCID: PMC8357672 DOI: 10.1007/s40618-021-01503-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 01/06/2021] [Indexed: 11/23/2022]
Abstract
PURPOSE The diagnosis of vitamin D deficiency is based on the determination of total plasma 25-hydroxyvitamin D (25-OHD) concentrations, but the regulation of vitamin D 25-hydroxylation is not a major consideration and very little information is available on this activity. To check what factors could interfere with the activity of vitamin D-25-hydroxylase and thus alter the 25-OHD concentrations, we looked for potential correlations between 25-OHD and results of liver function tests in healthy adults. METHODS This single-centre study was retrospective and consisted of evaluating the correlations between 25-OHD and the activities of aspartate aminotransferase (AST), alanine aminotransferase (ALT), gamma-glutamyl transpeptidase (GGT), alkaline phosphatase (ALP), and bone alkaline phosphatase (BALP) in 349 healthy subjects aged from 18 to 65 years. In particular, in Group 1 (n = 119), we looked for correlations between 25OHD and all liver function tests and in Group 2 (n = 230) the correlation between 25OHD and BALP. RESULTS In Group 1, we found no correlation between 25OHD and AST (r = - 0.03; p = 0.8), ALT (r = - 0.02; p = 0.91), GGT (r = - 0.08; p = 0.68), direct bilirubin (r = - 0.02; p = 0.89), indirect bilirubin (r = - 0.24; p = 0.21), and total bilirubin (r = - 0.24; p = 0.21) but one between 25OHD and ALP (r = - 0.2; p = 0.007); in Group 2, we found a significant negative correlation between 25-OHD and BALP (r = - 0.2; p = 0.0008). CONCLUSIONS The correlations that we found suggest that ALP and BALP might be involved in the regulation of vitamin D-25-hydroxylase activity, but further studies are mandatory to confirm our assumptions.
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Sexual dysfunctions in young women with type 1 diabetes and high glucose variability: findings from the METRO study. J Endocrinol Invest 2020; 43:1823-1825. [PMID: 32462315 DOI: 10.1007/s40618-020-01302-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 05/19/2020] [Indexed: 10/24/2022]
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Impact of extracorporeal shock wave therapy for erectile dysfunction and Peyronie’s disease on hormonal and reproductive testicular function: Results from a randomized controlled trial. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)35331-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Endocrine complications of COVID-19: what happens to the thyroid and adrenal glands? J Endocrinol Invest 2020; 43:1169-1170. [PMID: 32488724 PMCID: PMC7265876 DOI: 10.1007/s40618-020-01311-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 05/26/2020] [Indexed: 12/30/2022]
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Alemtuzumab-induced thyroid events in multiple sclerosis: a systematic review and meta-analysis. J Endocrinol Invest 2020; 43:219-229. [PMID: 31452116 DOI: 10.1007/s40618-019-01105-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 08/21/2019] [Indexed: 01/24/2023]
Abstract
PURPOSE Autoimmune thyroid events (ATEs) are common side effects after alemtuzumab (ALZ) therapy in patients with multiple sclerosis (MS). Our purpose was to reach more robust evidence on prevalence and outcome of the spectrum of alemtuzumab-induced autoimmune thyroid events in patients with multiple sclerosis. METHODS PubMed and Scopus were systematically searched through July 2019. Studies dealing with patients without personal history of thyroid dysfunctions and affected by MS treated with ALZ and reporting ATEs were selected. Data on prevalence and outcome of ATEs were extracted. A proportion of meta-analysis with random-effects model was performed. RESULTS Considering the overall pooled number of 1362 MS patients treated with ALZ (seven included studies), a 33% prevalence of newly diagnosed ATEs was recorded. Among all ATEs, Graves' disease (GD) was the most represented [63% of cases, 95% confidence interval (CI) 52-74%], followed by Hashimoto thyroiditis (15%, 95% CI 10-22%). Interestingly, GD showed a fluctuating course in 15% of cases (95% CI 8-25%). Of all GD, 12% (95% CI 2-42%) likely had spontaneous remission, 56% (95% CI 34-76%) required only antithyroid drugs, 22% (95% CI 13-32%) needed additional RAI, and 11% (95% CI 0.9-29%) underwent definitive surgery. CONCLUSION Among different categories of ATEs, Graves' hyperthyroidism was the most common thyroid dysfunction, occurring in more than half of cases. Antithyroid drugs should represent the first-line treatment for ALZ-induced GD patients. However, alemtuzumab-induced GD could not be considered as having a more favourable outcome than conventional GD, given the substantial chance to encounter a fluctuating and unpredictable course.
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Cardiovascular outcome trials and major cardiovascular events: does glucose matter? A systematic review with meta-analysis. J Endocrinol Invest 2019; 42:1165-1169. [PMID: 30955180 DOI: 10.1007/s40618-019-01047-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 04/02/2019] [Indexed: 12/29/2022]
Abstract
PURPOSE We did a meta-analysis with meta-regression to evaluate the relationship between hemoglobin A1c (A1C) reduction and the primary CV outcome of cardiovascular outcome trials (CVOTs). METHODS We used a random effects meta-analysis of the 12 CVOTs to quantify the effect of A1C reduction on major cardiovascular events (MACE) risk by stratifying the difference in achieved A1C (drug vs placebo) in three strata: A1c < 0.3%, A1c ≥ 0.3% and < 0.5%, and A1c ≥ 0.5%. RESULTS We found a relation between the reduction in achieved A1C and the hazard ratio reduction for MACE (P = 0.002), explaining almost all (94.1%) the between-study variances: lowering A1C by 0.5% conferred a significant HRR of 20% (95% CI 4-33%) for MACE. CONCLUSIONS Blood glucose reduction may play a more important role than previously thought in reducing the risk of MACE during treatment with the newer glucose-lowering drugs, including peptidase-4 inhibitors, glucagon-like peptide 1 receptor agonists and sodium-glucose co-transporter-2 inhibitors.
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Endocrine rhythms and sport: it is time to take time into account. J Endocrinol Invest 2019; 42:1137-1147. [PMID: 30924095 DOI: 10.1007/s40618-019-01038-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 03/20/2019] [Indexed: 10/27/2022]
Abstract
BACKGROUND Studies of time-related biological phenomena have contributed to establishing a new scientific discipline, the chronobiology, which considers biological phenomena in relation to time. Sports activity profoundly affects the temporal organization of the organism and endocrine rhythms play a key role in the chronoorganization of individuals and are particularly important for correct physical activity. Correctly reading rhythmic hormonal variations of the human organism opens new horizons to sports medicine. OBJECTIVE This review is aimed at clarifying the relationship between endocrine rhythms and sports activities on the basis of the latest data in the literature. METHOD Data acquisition was obtained from three databases (PubMed, Scopus and SPORTDiscus), paying particular attention to reviews, meta-analysis, original and observational studies on this issue. RESULTS After the description of the general characteristics and parameters of biological rhythms, the main endocrine rhythms will be described, highlighting in particular the interrelationships with sports activity and focusing on the factors which can affect negatively their characteristics and consequently the psychophysical performances of the athletes. CONCLUSION Knowledge of this issue may allow establishing the best form of competitive or amateur activity, through the collaboration of an informed athlete and a sports physician attentive to biological rhythms. By taking into account that alteration of physiological rhythmic temporal organization can favour the onset of important diseases, including cancer, this will lead to the expected performances without impairing the correct chronoorganization of the athlete.
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Clinical inertia, reverse clinical inertia, and medication non-adherence in type 2 diabetes. J Endocrinol Invest 2019; 42:495-503. [PMID: 30291589 DOI: 10.1007/s40618-018-0951-8] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 09/05/2018] [Indexed: 01/20/2023]
Abstract
PURPOSE Clinical inertia and medication non-adherence are thought to contribute largely to the suboptimal glycemic control in many patients with type 2 diabetes. The present review explores the relations between A1C targets, clinical inertia and medication non-adherence in type 2 diabetes. METHODS We searched PubMed for English-language studies published from 2001 through June 1, 2018. We also manually searched the references of selected articles, reviews, meta-analyses, and practice guidelines. Selected articles were mutually agreed upon by the authors. RESULTS Clinical inertia is the failure of clinicians to initiate or intensify therapy when indicated, while medication non-adherence is the failure of patients to start or continue therapy that a clinician has recommended. Although clinical inertia may occur at all stages of diabetes treatment, the longest delays were reported for initiation or intensification of insulin. Medication non-adherence to antidiabetic drugs may range from 53 to 65% at 1 year and may be responsible for uncontrolled A1C in about 23% of cases. Reverse clinical inertia can be acknowledged as the failure to reduce or change therapy when no longer needed or indicated. Clinical inertia and medication non-adherence are difficult to address: clinician-and patient-targeted educational programs, more connected communications between clinicians and patients, the help of other health professional figures (nurse, pharmacist) have been explored with mixed results. CONCLUSIONS Both clinical inertia and medication non-adherence remain significant barriers to optimal glycemic targets in type 2 diabetes. Moreover, part of clinical inertia may be a way through which clinicians face current uncertainty in medicine, including some dissonance among therapeutic guidelines. Scientific associations should find an agreement about how to measure and report clinical inertia in clinical practice and should exhort clinicians to consider reverse clinical inertia as a cause of persisting inappropriate therapy in vulnerable patients.
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Dissonance among treatment algorithms for hyperglycemia in type 2 diabetes: an egalitarian dialog. J Endocrinol Invest 2019; 42:237-242. [PMID: 29704235 DOI: 10.1007/s40618-018-0893-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 04/18/2018] [Indexed: 11/27/2022]
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From inflammation to sexual dysfunctions: a journey through diabetes, obesity, and metabolic syndrome. J Endocrinol Invest 2018; 41:1249-1258. [PMID: 29549630 DOI: 10.1007/s40618-018-0872-6] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 03/09/2018] [Indexed: 12/20/2022]
Abstract
Metabolic diseases are associated with chronic low-grade inflammation, which has been indicated as a potential mediator of endothelial dysfunction and cardiovascular disease. Visceral adiposity is thought to be the starting condition of the inflammatory state through the release of inflammatory cytokines, including TNF-alpha, CRP, and IL-6, which in turn promote endothelial dysfunction, endothelial expression of chemokines (IL-1) and adhesion molecules (ICAM-1, VCAM-1, and P-selectin), and the inhibition of anti-atherogenic factors (adiponectin). Obesity, metabolic diseases, and diabetes, all conditions characterized by abdominal fat, are well-recognized risk factors for sexual dysfunction in both sexes. Evidence from randomized-controlled trials supports the association between inflammatory milieau and erectile dysfunction in men suffering from metabolic diseases, whereas, in women, this has to be confirmed in further studies. A healthy lifestyle based on dietary pattern with high content of whole grain, fruit, nuts and seeds, and vegetables and low in sodium and saturated fatty acids plus regular physical activity may help to modulate the pro-inflammatory state associated with metabolic diseases and the related burden of sexual dysfunctions.
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TSH oscillations in young patients with type 1 diabetes may be due to glycemic variability. J Endocrinol Invest 2018; 41:389-393. [PMID: 28856591 DOI: 10.1007/s40618-017-0752-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 08/20/2017] [Indexed: 12/16/2022]
Abstract
PURPOSE A relationship between thyroid dysfunction and diabetes mellitus has been described by several authors but the role of glycemic variability is still unclear. We planned the present study to evaluate the influence of glycemic variability on thyroid hormones and TSH concentrations in patients with type 1 diabetes mellitus (T1DM). METHODS Seventy-seven young patients with T1DM were enrolled and evaluated for basal glucose concentrations, HbA1c, thyroid hormones and TSH concentrations. Glucose variability was investigated by considering the standard deviation of blood glucose readings and by calculating the mean amplitude of glycemic excursions and continuous overlapping net glycemic action (CONGA). The low (LBGI) and high (HBGI) blood glucose indices were also calculated. The correlations between TSH, thyroid hormones, glycemia and HbA1c were studied in patients and in controls, whereas those between TSH, thyroid hormones and indices of glucose variability only in patients. RESULTS No correlations were observed in T1DM patients between free thyroid hormones and glycemic values, HbA1c and indices of glucose variability, while an inverse correlation was observed between TSH levels and glycemic values (r = -0.27; p = 0.01), CONGA index (r = -0.35; p = 0.001) and HBGI (r = -0.28; p = 0.01) but not with HbA1c (r = -0.1; p = 0.47). CONCLUSIONS Our results suggest a direct action of glycemic excursions on TSH secretion, regardless of variations of thyroid hormone concentrations. Thus, the evaluation of thyroid function through the assay of TSH concentrations in these patients should be made, if possible, by multiple samples on patients in euglycemic state to avoid underestimation or overestimation of thyroid dysfunction due to a wrong diagnosis of euthyroidism or dysthyroidism with consequent inappropriate choice of therapeutic options.
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Single center experience with laparoscopic adrenalectomy on a large clinical series. BMC Surg 2018; 18:2. [PMID: 29325527 PMCID: PMC5765650 DOI: 10.1186/s12893-017-0333-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 12/26/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Laparoscopic adrenalectomy is considered the gold standard technique for the treatment of benign small and medium size adrenal masses (<6 cm), due to low morbidity rate, short hospitalization and patient rapid recovery. The aim of our study is to analyse the feasibility and efficiency of this surgical approach in a broad spectrum of adrenal gland pathologies. METHODS Pre-operative, intra-operative and post-operative data from 126 patients undergone laparoscopic adrenalectomy between January 2003 and December 2015 were retrospectively collected and reviewed. Diagnosis was obtained on the basis of clinical examination, laboratory values and imaging techniques. Doxazosin was preoperatively administered in case of pheochromocytoma while spironolactone and potassium were employed to treat Conn's disease. Laparoscopic adrenalectomies were all performed by the same surgeon (CG). First 30 procedures were considered as learning curve adrenalectomies. RESULTS One hundred twenty-six patients were included in the study. Functioning tumors were diagnosed in 84 patients, 27 patients were affected by pheochromocytomas, 29 by Conn's disease, 28 by Cushing disease. Surgery mean operative time was 137.33 min (range 100-180) during the learning curve adrenalectomies and 96.5 min (range 75-110) in subsequent procedures. Mean blood loss was respectively 160.2 ml (range 60-280) and 90.5 ml (range 50-200) in the first 30 procedures and the subsequent ones. Only one conversion to open surgery occurred. No post-operative major complications were observed, while minor complications occurred in 8 patients (0,79%). In 83 out of 84 functioning neoplasms, laparoscopic adrenalectomy was effective in normalization of endocrine profile. CONCLUSIONS Laparoscopic adrenalectomy is a safe and feasible procedure, even for functioning masses and pheochromocytomas. A multidisciplinary team including endocrinologists, endocrine surgeons and anaesthesiologists, is recommended in the management of adrenal pathology, and adrenal surgery should be performed in referral high volume centers. A thirty-procedures learning curve is recommended to improve surgical outcomes.
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Sexual function in young women with type 1 diabetes: the METRO study. J Endocrinol Invest 2017; 40:169-177. [PMID: 27613610 DOI: 10.1007/s40618-016-0542-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 08/30/2016] [Indexed: 01/23/2023]
Abstract
PURPOSE The aim of this study was to evaluate the prevalence and risk factors associated with female sexual dysfunction (FSD) in young women with type 1 diabetes treated with different intensive insulin regimens. METHODS Type 1 diabetic women aged 18-35 years were included in this study if they had stable couple relationship and no oral contraceptive use. All women were asked to complete the Female Sexual Function Index (FSFI) and other validated multiple-choice questionnaires assessing sexual-related distress (Female Sexual Distress Scale, FSDS), quality of life (SF-36 Health Survey), physical activity (International Physical Activity Questionnaire), depressive symptoms (Zung Self-Rating Depression Scale, SRDS) and diabetes-related problems (Diabetes Integration Scale ATT-19). FSD was diagnosed according to a FSFI score higher than 26.55 and a FSDS score lower than 15. RESULTS The overall prevalence of FSD in diabetic and control women was 20 and 15 %, respectively (P = 0.446). Compared with the continuous subcutaneous insulin infusion group and control women, diabetic women on multiple daily injections (MDI) had lower global FSFI score (P = 0.007), FSDS score (P = 0.045) and domains such as arousal (P = 0.006), lubrication and satisfaction scores (P < 0.001 for both). In the multiple regression analysis, only the mental component summary (P = 0.047) and the SRDS score (P = 0.042) were independent predictors of FSFI score in the overall diabetic women. CONCLUSION Young women with type 1 diabetes wearing an insulin pump show a prevalence of sexual dysfunction similar to that of healthy age-matched women, but sexual function was significantly impaired in diabetic women on MDI therapy. Depression and the mental health status were independent predictors for FSD in diabetic women.
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Erectile dysfunction in young men with type 1 diabetes. Int J Impot Res 2016; 29:17-22. [DOI: 10.1038/ijir.2016.38] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 07/13/2016] [Accepted: 07/28/2016] [Indexed: 12/29/2022]
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Vitamin D and autoimmunity: what happens in autoimmune polyendocrine syndromes? J Endocrinol Invest 2015; 38:629-33. [PMID: 25576459 DOI: 10.1007/s40618-014-0233-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 12/18/2014] [Indexed: 12/27/2022]
Abstract
PURPOSE To evaluate the Vitamin D status of patients with a single autoimmune disease and of patients with several autoimmune diseases. METHODS We enrolled 35 patients with isolated type 1 diabetes mellitus (T1DM), 60 with autoimmune polyendocrine syndromes (APS) including T1DM and 72 control subjects. Among patients with APS, 10 were classified as type 2 (Addison's disease + T1DM), whereas the other 50 as type 3 (autoimmune thyroid disease + T1DM + other autoimmune diseases). Vitamin D (25-OHD) levels were assessed by a chemiluminescent immunoassay in all patients and controls on samples drawn in the morning of the same months. RESULTS Both groups of APS and T1DM patients showed 25-OHD levels significantly lower than healthy controls (p < 0.001 for both vs controls), without any significant difference between the two groups (p = 0.80). The highest prevalence of vitamin D deficiency (values <20 ng/ml) was observed in APS type 3 subgroup (8 out of 50 patients, 16%). CONCLUSIONS Patients with APS present reduced vitamin D circulating levels, but the vitamin D status is not different between patients with single or multiple autoimmune diseases. The kind of autoimmune disease, rather than the association of several autoimmune diseases, may influence negatively the levels of vitamin D. Further prospective studies are needed to clarify if impaired vitamin D level is a causal factor in the pathogenesis of autoimmune diseases or a consequence of them.
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Characterization of pituitary cells targeted by antipituitary antibodies in patients with isolated autoimmune diseases without pituitary insufficiency may help to foresee the kind of future hypopituitarism. Pituitary 2014; 17:457-63. [PMID: 24122272 DOI: 10.1007/s11102-013-0526-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
PURPOSE Detection of antipituitary antibodies (APA) at high levels and with a particular immunofluorescence pattern in patients with autoimmune polyendocrine syndromes may indicate a possible future autoimmune pituitary involvement. This longitudinal study was aimed at characterizing in patients with a single organ-specific autoimmune disease the pituitary cells targeted by APA at start, verifying whether this characterization allows to foresee the kind of possible subsequent hypopituitarism. METHODS Thirty-six APA positive and 40 APA negative patients with isolated autoimmune diseases participated in the study. None of them had pituitary dysfunction at entry. Characterization by four-layer immunofluorescence of pituitary cells targeted by APA in APA positive patients at entry and study of pituitary function in all patients were performed every 6 months during a 5 year follow-up. RESULTS Antipituitary antibodies immunostained selectively one type of pituitary-secreting cells in 21 patients (58.3 %, group 1), and several types of pituitary cells in the remaining 15 (41.7 %, group 2). All patients in group 1 showed subsequently a pituitary insufficiency, corresponding to the type of cells targeted by APA in 18 of them (85.7 %). Only 8 out of 15 patients in group 2 (53.3 %) showed a hypopituitarism, isolated in 7 and combined in the other one. None of APA negative patients showed hypopituitarism. CONCLUSIONS The characterization of pituitary cells targeted by APA in patients with isolated autoimmune diseases, when the pituitary function is still normal, may help to foresee the kind of subsequent hypopituitarism, especially when APA immunostained selectively only one type of pituitary cells. A careful follow-up of pituitary function in these patients is advisable to allow an early diagnosis of hypopituitarism, even in subclinical phase and a consequent timely replacement therapy.
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Abstract
BACKGROUND Endothelial progenitor cells (EPCs), involved in the repairing mechanisms of vascular damage, are positively correlated to insulin-like growth factor I (IGF-I) concentrations in healthy adults. However, the levels of EPCs and their role in acromegalic patients have never been investigated. AIM We conducted a cross-sectional study in order to assess the levels of the different phenotypes of circulating EPC in acromegalic patients. SUBJECTS AND METHODS The study was performed at the Endocrinology Unit of Federico II University and at the Unit of Metabolic Diseases and Endocrinology of the Second University of Naples. Fifty-five acromegalic patients and 65 healthy controls were studied. EPCs were assessed by flow cytometry and IGF-I by immunoradiometric assay. RESULTS Compared with subjects of the control group, acromegalic patients showed significantly higher levels of EPCs phenotypes expressing KDR antigen [KDR+, cells per 106 events, median and interquartile range, 44 (28-67) vs 23 (13-40), p=0.006; CD34+KDR+ 25 (18-38) vs 12 (8-17), p<0.001; CD133+KDR+ 17 (13-30) vs 8 (6-12), p<0.001; CD34+KDR+CD133+ 16 (12-25) vs 8 (6-10), p<0.001]. There was a positive correlations between CD34+KDR+CD133+ cells count and IGF-I in acromegaly group (r=0.79, p<0.001). CONCLUSIONS Acromegalic patients show higher circulating EPCs levels expressing KDR, positively correlated with IGF-I, suggesting a role for IGF-I in regulating the expression of this surface marker in the early phase of EPCs differentiation.
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Abstract
BACKGROUND Few data exist on the prevalence of female sexual dysfunction (FSD) in thyroid disorders. AIM We evaluated FSD in women with thyroid diseases and in control age-matched healthy women to investigate the relationship between sexual function and thyroid hormones. METHODS One hundred and four women with thyroid diseases and 53 controls participated in the study. Eighteen with hyperthyroidism (Group 1), 22 hypothyroidism (Group 2), 45 Hashimoto's thyroiditis (Group 3), 19 nodular goiter (Group 4) underwent thyroid function evaluation and sonography. The Female Sexual Function Index (FSFI) assessed sexual function. RESULTS The prevalence of FSD was 46.1% in thyroid diseases and 20.7% in controls. Only in Group 4, the prevalence (68.4%) was significantly higher than in controls (p<0.005). The mean total FSFI score was 20.1 ± 7.1 in women with thyroid diseases and 25.6 ± 4.7 in the controls (p<0.001). Compared with controls, there was a significant decrease of desire in Group 2; desire, arousal and lubrication in Group 3; desire, arousal, lubrication, orgasm and satisfaction in Group 4. In thyroid diseases the prevalence of FSD was 53% and 42%, while in the controls was 55% and 20%, in menopausal and pre-menopausal groups, respectively. We found a significant inverse correlation between TSH and FSFI (r=-0.7, p=0.01) in Group 4, which showed the lowest FSFI score (17.8 ± 5.7) and the highest body mass index (28.4 ± 7.1 kg/m(2)). CONCLUSIONS Women with thyroid diseases present a higher prevalence of FSD than controls. Although our findings suggest a higher impairment of sexual function in Group 4 and a role for TSH in FSD, further researches are needed.
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Seasonal variations of plasma gonadotropin, prolactin, and testosterone levels in primary and secondary hypogonadism: evidence for an independent testicular role. J Endocrinol Invest 2013; 36:339-42. [PMID: 23013937 DOI: 10.3275/8620] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
BACKGROUND Seasonal hormonal rhythmicity of the hypothalamic-pituitary-gonadal axis may influence reproductive and sexual activity in mammals. AIM To investigate whether pituitary-gonadal axis secretion seasonality occurs in men with primary and secondary hypogonadism and whether a hierarchical machinery regulates these variations. SUBJECTS AND METHODS Six adult males with Klinefelter's syndrome (KS), eight with idiopathic normosmic hypogonadotropic hypogonadism (HH) and ten sex- and age-matched healthy controls were studied longitudinally for one year. Every three months, three plasma samples for assay of testosterone, LH, FSH, and prolactin were drawn and the mean value was used for statistical analysis. RESULTS Healthy males showed a significant seasonality in LH (zenith in spring) and testosterone (zenith in autumn) but not in FSH and prolactin concentrations. Patients with KS and those with HH showed a seasonal rhythmicity only of testosterone values, even if with small amplitude, with the zenith in spring and summer respectively. CONCLUSION The lack of dependence of testosterone on gonadotropin variations in normal men and the persistence of seasonal testosterone but not gonadotropin variations both in primary and secondary hypogonadism seem to indicate a possible independent testicular regulation of this seasonality. The shift of testosterone peak in hypogonadal men with respect to controls suggests that LH variations could play a synchronizing, rather than pace-making, role in seasonal testosterone variations. Since hormonal seasonality may also influence gonadal activity in humans, replacement therapy in hypogonadism should be aimed also at restoring a normal seasonal rhythmicity of pituitary-gonadal hormone concentrations.
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Abstract
BACKGROUND Literature data examining the role of metabolic syndrome and its components in prostate cancer risk are limited and contradictory. AIM We did a meta-analysis of studies that evaluated the association between metabolic syndrome, its components, and risk of prostate cancer. SUBJECTS AND METHODS We conducted an electronic search for articles published through September 2012 without restrictions. Every included study was to report risk estimates with 95% confidence intervals for the association between metabolic syndrome and prostate cancer. RESULTS The final number of papers included in the meta-analysis was 14, all published in English, with 4728 prostate cancer cases. Metabolic syndrome was associated with a 12% increase in prostate cancer risk (p=0.231), that was lower in cohort studies (7 studies, RR=1.04, p=0.791) than other studies (RR=1.23, p=0.125). The association was significant in the 8 European studies (RR=1.30, p=0.034), but not in the 4 U.S. or 2 Asiatic studies. The risk estimates of prostate cancer for higher values of body mass index, dysglycemia or dyslipidemia (high triglycerides, low HDL-cholesterol) were not significant; on the contrary, hypertension and waist circumference >102 cm were associated with a significant 15% (p=0.035) and 56% (p=0.007) greater risk of prostate cancer, respectively. CONCLUSIONS Metabolic syndrome is weakly and non significantly associated with prostate cancer risk, but associations vary with geography. Among single components of the syndrome, hypertension and higher waist circumference are significantly associated with increased risk of prostate cancer.
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Prospective investigation of pituitary functions in patients with acute infectious meningitis: is acute meningitis induced pituitary dysfunction associated with autoimmunity? Pituitary 2012; 15:579-88. [PMID: 22228382 DOI: 10.1007/s11102-011-0371-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Previous case reports and retrospective studies suggest that pituitary dysfunction may occur after acute bacterial or viral meningitis. In this prospective study we assessed the pituitary functions, lipid profile and anthropometric measures in adults with acute bacterial or viral meningitis. Moreover, in order to investigate whether autoimmune mechanisms could play a role in the pathogenesis of acute meningitis-induced hypopituitarism we also investigated the anti-pituitary antibodies (APA) and anti-hypothalamus antibodies (AHA) prospectively. Sixteen patients (10 males, 6 females; mean ± SD age 40.9 ± 15.9) with acute infectious meningitis were included and the patients were evaluated in the acute phase, and at 6 and 12 months after the acute meningitis. In the acute phase 18.7% of the patients had GH deficiency, 12.5% had ACTH and FSH/LH deficiencies. At 12 months after acute meningitis 6 of 14 patients (42.8%) had GH deficiency, 1 of 14 patients (7.1%) had ACTH and FSH/LH deficiencies. Two of 14 patients (14.3%) had combined hormone deficiencies and four patients (28.6%) had isolated hormone deficiencies at 12 months. Four of 9 (44.4%) hormone deficiencies at 6 months were recovered at 12 months, and 3 of 8 (37.5%) hormone deficiencies at 12 months were new-onset hormone deficiencies. At 12 months there were significant negative correlations between IGF-I level vs. LDL-C, and IGF-I level vs. total cholesterol. The frequency of AHA and APA positivity was substantially high, ranging from 35 to 50% of the patients throughout the 12 months period. However there were no significant correlations between AHA or APA positivity and hypopituitarism. The risk of hypopituitarism, GH deficiency in particular, is substantially high in the acute phase, after 6 and 12 months of the acute infectious meningitis. Moreover we found that 6th month after meningitis is too early to make a decision for pituitary dysfunction and these patients should be screened for at least 12 months. In addition, the occurrence of AHA and APA positivity due to acute infectious meningitis was demonstrated for the first time. Further longer-term prospective investigations need to be carried out on a larger cohort of patients to understand the role of autoimmunity in the pathogenesis of late hypopituitarism after acute infectious meningitis.
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Involvement of hypothalamus autoimmunity in patients with autoimmune hypopituitarism: role of antibodies to hypothalamic cells. J Clin Endocrinol Metab 2012; 97:3684-90. [PMID: 22855340 DOI: 10.1210/jc.2012-2269] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Antipituitary antibodies (APA) but not antihypothalamus antibodies (AHA) are usually searched for in autoimmune hypopituitarism. OBJECTIVE Our objective was to search for AHA and characterize their hypothalamic target in patients with autoimmune hypopituitarism to clarify, on the basis of the cells stained by these antibodies, the occurrence of autoimmune subclinical/clinical central diabetes insipidus (CDI) and/or possible joint hypothalamic contribution to their hypopituitarism. DESIGN We conducted a cross-sectional cohort study. PATIENTS Ninety-five APA-positive patients with autoimmune hypopituitarism, 60 without (group 1) and 35 with (group 2) lymphocytic hypophysitis, were studied in comparison with 20 patients with postsurgical hypopituitarism and 50 normal subjects. MAIN OUTCOME MEASURES AHA by immunofluorescence and posterior pituitary function were evaluated; then AHA-positive sera were retested by double immunofluorescence to identify the hypothalamic cells targeted by AHA. RESULTS AHA were detected at high titer in 12 patients in group 1 and in eight patients in group 2. They immunostained arginine vasopressin (AVP)-secreting cells in nine of 12 in group 1 and in four of eight in group 2. All AVP cell antibody-positive patients presented with subclinical/clinical CDI; in contrast, four patients with GH/ACTH deficiency but with APA staining only GH-secreting cells showed AHA targeting CRH- secreting cells. CONCLUSION The occurrence of CDI in patients with lymphocytic hypophysitis seems due to an autoimmune hypothalamic involvement rather than an expansion of the pituitary inflammatory process. To search for AVP antibody in these patients may help to identify those of them prone to develop an autoimmune CDI. The detection of AHA targeting CRH-secreting cells in some patients with GH/ACTH deficiency but with APA targeting only GH-secreting cells indicates that an autoimmune aggression to hypothalamus is jointly responsible for their hypopituitarism.
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Proportion of patients at HbA1c target <7% with eight classes of antidiabetic drugs in type 2 diabetes: systematic review of 218 randomized controlled trials with 78 945 patients. Diabetes Obes Metab 2012; 14:228-33. [PMID: 21958121 DOI: 10.1111/j.1463-1326.2011.01512.x] [Citation(s) in RCA: 115] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
AIM We assessed the efficacy of eight classes of diabetes medications used in current clinical practice [metformin, sulphonylureas, α-glucosidase inhibitors, thiazolidinediones, glinides, dipeptidyl peptidase-4 inhibitors, glucagon-like peptide-1 (GLP-1) analogues and insulin analogues] to reach the HbA1c target <7% in type 2 diabetes. METHODS MEDLINE, EMBASE and the Cochrane CENTRAL were searched from inception through April 2011 for randomized controlled trials (RCTs) involving antidiabetic drugs. RCTs had to report the effect of any diabetes medication on the HbA1c levels, to include at least 30 subjects in every arm of the study, and to report the effect of therapy after a minimum of 12 weeks. Data were summarized across studies using random-effects meta-regression. RESULTS A total of 218 RCTs (339 arms and 77 950 patients) met the inclusion criteria. The proportion of patients who achieved the HbA1c goal ranged from 25.9% (95% CI 18.5-34.9) with α-glucosidase inhibitors to 63.2% (54.1-71.5) with the long-acting GLP-1 analogue. There was a progressive decrease of the proportion of patients at target for each 0.5% increase in baseline HbA1c, ranging from 57.8% for HbA1c ≤7.5% to 20.8% for HbA1c ≥10% (p for trend <0.0001), with some difference between insulin and non-insulin drugs: for insulin, the proportion of patients at goal reached a plateau for basal HbA1c value >9.0% with no further decrease, whereas for non-insulin drugs the relationship was continuous without any evidence of plateau. CONCLUSIONS There is a considerable variability with regard to attainment of HbA1c goal of <7% among the different classes of diabetes medications; baseline HbA1c is an important determinant of observed efficacy.
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Simultaneous evaluation of the circulating levels of both Th1 and Th2 chemokines in patients with autoimmune Addison's disease. J Endocrinol Invest 2011; 34:831-4. [PMID: 21169727 DOI: 10.3275/7414] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Chemokines play a key role in the recruitment of the immune cells into the autoimmune process. Thus, the simultaneous evaluation of circulating levels of Th1-related chemokines, such as CX chemokine ligand 10 (CXCL10) and macrophage inflammatory proteins 1α (CCL3/MIP-1α), and Th2-related chemokines, such as macrophage inflammatory proteins 1 β (CCL4/MIP-1β) could be useful in the approach to some autoimmune diseases, including autoimmune Addison's disease (AAD). AIM To evaluate plasmatic levels of MIP-1α, MIP-1β, CXCL10 and adrenocortical antibodies in patients with AAD under treatment with corticosteroids. PATIENTS AND METHODS Twelve women and 5 men (group 1) were divided in 2 subgroups: 9 subjects with isolated AAD (group 1a) and 8 with AAD associated with chronic autoimmune thyroiditis (group 1b). MIP-1α, MIP- 1β and CXCL10 were evaluated in the serum of all patients and in 20 healthy controls, using a system for microarray suspension. RESULTS The levels of MIP-1α, MIP-1β and CXCL10 resulted significantly increased vs controls (p<0.001). An inverse significant correlation between the serum levels of MIP- 1β and the duration of the disease was observed. CONCLUSION High levels of MIP-1α and MIP-1β associated with increased levels of CXCL10 in AAD seem to indicate a role of these chemokines in the autoimmune pathology of adrenal gland through the recruitment in loco of Th1 and Th2 cells. The simultaneous measurement of Th1-related chemokines (CXCL10 and MIP-1α) and of Th2-related chemokine MIP-1β in the serum of patients with AAD would sustain a novel preliminary hypothesis on the immune microenvironment of chronic autoimmune inflammation within adrenal glands.
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Dipeptidyl peptidase-4 inhibitors and HbA1c target of <7% in type 2 diabetes: meta-analysis of randomized controlled trials. Diabetes Obes Metab 2011; 13:594-603. [PMID: 21320267 DOI: 10.1111/j.1463-1326.2011.01380.x] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
AIM We assessed the efficacy of dipeptidyl peptidase-4 (DPP-4) inhibitors vildagliptin, sitagliptin, saxagliptin and alogliptin to reach the haemoglobin HbA1c target of <7% in people with type 2 diabetes. METHODS We conducted an electronic search for randomized controlled trials (RCTs) involving DPP-4 inhibitors through September 2010. RCTs were included if they lasted at least 12 weeks, included 30 patients or more and reported the proportion of patients reaching the HbA1c target of <7%. RESULTS A total of 43 RCTs reporting 52 comparisons met the selection criteria, which included 19 101 study participants evaluated for the primary endpoint, 10 467 treated with a DPP-4 inhibitor and 8634 treated with placebo or a comparator drug. DPP-4 inhibitors showed a statistically significant reduction in HbA1c compared to placebo and approximately 40% of participants achieved the HbA1c goal of <7%: this was associated with weight neutrality and no greater hypoglycaemia. The reduction of the HbA1c level and the rate of HbA1c goal attainment was not different from comparator drugs, with similar hypoglycaemia, and different effect on weight owing to the nature of comparator (metformin, sulfonylurea or glitazones). Baseline HbA1c was the best predictor for achievement of A1C target (overall weighted r(2) value = 0.410, p < 0.001). CONCLUSIONS A greater proportion of type 2 diabetic patients can achieve the HbA1c goal <7% with DPP-4 inhibitors compared to placebo, with no weight gain, and no hypoglycaemic risk when used alone; DPP-4 inhibitors were not different from comparator drugs.
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Relationship of baseline HbA1c, HbA1c change and HbA1c target of < 7% with insulin analogues in type 2 diabetes: a meta-analysis of randomised controlled trials. Int J Clin Pract 2011; 65:602-12. [PMID: 21489084 DOI: 10.1111/j.1742-1241.2010.02619.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
AIM We performed a meta-analysis of randomised controlled trials (RCTs) with insulin analogues in type 2 diabetes utilising a least-squared regression model in order to assess the relationship between baseline HbA1c, the magnitude of HbA1c decrease and attainment of HbA1c target of < 7%. METHODS Randomised controlled trials involving insulin regimens (basal, prandial, biphasic and basal-bolus) were identified through electronic searches (MEDLINE, EMBASE, CINAHL and The Cochrane Library) through September 2010. We included any study arm of RCTs if they were at least 12 weeks in duration; the number of patients in any arm was more than 30 and reported the baseline HbA1c and change from baseline HbA1c. RESULTS We found 87 studies, with a total of 135 arms, and 38,803 patients. The weighted R(2) values for the overall analysis assessing the association between baseline HbA1c and absolute change in HbA1c or the proportion of patients at target were 0.485 (p < 0.001) and 0.146 (p < 0.001), respectively. Subanalyses of insulin regimens for the association between basal HbA1c and absolute decrease of HbA1c produced weighted R(2), which were significant for all insulin regimens with the highest association for basal-bolus (R(2) = 0.719, p < 0.001). CONCLUSIONS The strong positive relationship between baseline HbA1c and the magnitude of HbA1c change we found in RCTs using insulin analogues in type 2 diabetes should be considered when assessing the clinical efficacy of insulin therapies.
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Effects of pioglitazone versus metformin on circulating endothelial microparticles and progenitor cells in patients with newly diagnosed type 2 diabetes--a randomized controlled trial. Diabetes Obes Metab 2011; 13:439-45. [PMID: 21255215 DOI: 10.1111/j.1463-1326.2011.01367.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
AIM Endothelial microparticles (EMPs) and endothelial progenitor cells (EPCs) are markers of endothelial injury and repair. We compared the effects of pioglitazone versus metformin on the circulating numbers of EMPs and EPCs in patients with newly diagnosed type 2 diabetes. METHODS This was a randomized, double-blind, comparator-controlled, 24-week single-centre trial conducted in a Teaching Hospital in Naples, Italy. One hundred and ten people with newly diagnosed type 2 diabetes who were never treated with antihyperglycaemic drugs and had haemoglobin A1c (HbA1c) levels between 7 and 10% were given pioglitazone hydrochloride (15-45 mg/day) (n = 55) or metformin (1000-2000 mg/day) (n = 55) as an active comparator. Absolute change from baseline to final visit in circulating EMPs and EPCs and their ratio were the main outcomes. RESULTS Baseline characteristics did not differ between the study groups. The decrease in circulating EMPs CD31+ [intergroup difference, -32 counts/µl (95% CI -51 to -9)] and the increase in EPCs CD34+/KDR+ [intergroup difference, 33 cells/10(6) events (95% CI 13 to 55)] were greater with pioglitazone versus metformin. EMPs/EPCs ratio was reduced with pioglitazone and unchanged with metformin [difference, -1.5 (95% CI -2.6 to -0.5), p < 0.001]. Participants assigned to pioglitazone gained more weight and experienced greater improvements in some coronary risk measures [high-density lipoprotein (HDL)-cholesterol, triglycerides, adiponectin and C-reactive protein (CRP)] than did those assigned to metformin. CONCLUSION Compared with metformin, pioglitazone treatment improved the imbalance between endothelial damage and repair capacity and led to more favourable changes in coronary risk factors in patients with newly diagnosed type 2 diabetes.
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Raloxifene induces cell death and inhibits proliferation through multiple signaling pathways in prostate cancer cells expressing different levels of estrogen receptor α and β. J Cell Physiol 2011; 226:1334-9. [PMID: 20945400 DOI: 10.1002/jcp.22461] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Raloxifene (RAL), a selective estrogen receptor (ER) modulator (SERM) seems to induce apoptosis in both androgen-dependent and -independent prostate cell (PC) lines via activation of ERβ and an antagonistic effect on ERα. In this study, we evaluated the effects of RAL on epithelial PC growth using the two following in vitro models: the androgen-dependent cell line EPN which expressed both ERs; and a stabilized epithelial cell line derived from a prostate cancer specimen (CPEC), which expressed low levels of ERβ and lacked ERα. In EPN cells, there was an increase in the pre-G1 apoptotic peak and a reduction in the S phase of the cell cycle with G0/G1 arrest after E2 or RAL treatment; bcl-2 mRNA and Bcl-2 protein levels were significantly reduced, while activated caspase-3 and Par-4 levels increased significantly after either E2 or RAL treatment; in addition, c-myc transcript was inhibited after 10(-6) M RAL treatment. A dose-dependent increase of metallothionein II gene RNA level was also induced by RAL in EPN. In CPEC, there was only a weak apoptotic peak associated with caspase-3 activation and Par-4 increase after either E2 or RAL treatment; while c-myc transcript level increased. RAL induced a rapid but transient phosphorylation of ERK 1/2 in EPN cells but generated a sustained effect in CPEC. These findings suggest that RAL effects on PC growth control in vitro are cell-specific, depending on ERβ or ERβ/ERα relative expression levels. Moreover, this study demonstrated that RAL affected both transcriptional regulation and non-genomic signals, which resulted in the modulation of multiple signaling pathways of apoptosis and of cell cycle progression.
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Efficacy of recombinant human follicle stimulating hormone at low doses in inducing spermatogenesis and fertility in hypogonadotropic hypogonadism. J Endocrinol Invest 2010; 33:618-23. [PMID: 20436264 DOI: 10.1007/bf03346659] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Recombinant-FSH (rFSH) added to hCG at dose of 450 IU weekly is effective in inducing spermatogenesis in patients with hypogonadotropic hypogonadism (HH), but there are no data on the use of lower doses. AIM This observational retrospective study evaluated whether 150-225 IU of rFSH weekly were able to induce spermatogenesis in HH men who failed to start it with hCG alone. SUBJECTS AND METHODS Thirty-four patients with pre-pubertal onset HH (20-44 yr old) without adverse fertility factors were considered for this study. After hCG pre-treatment they received also either rFSH (Group 1) or highly purified urinary FSH (hpFSH) (Group 2) 75 IU sc 2 or 3 times weekly. Semen analysis was performed every 3 months during pre-treatment and the 1st yr of combined therapy. Patients were also invited to refer pregnancies in their partners during the subsequent 12 months. RESULTS Total sperm count/ejaculate did not show significant difference between 2 groups, while a significantly higher forward motility was observed in Group 1 (p<0.05). The median times to achieve sperm output thresholds (first sperm appearance, sperm concentration >1.5 or >5 mil/ml) were significantly lower in Group 1 (p<0.04, 0.03, and 0.001, respectively). A tendency to a shorter time to pregnancy was shown in partners of Group 1. CONCLUSIONS Our data indicate that lower rFSH week dose than that so far used was able to induce potentially fertilizing sperm output in HH men previously treated with hCG. The rFSH effects are comparable to those of hpFSH but with a trend to a faster outcome achievement.
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Abstract
The aim of this study was to evaluate GH/IGF-I axis and other pituitary functions in adult patients with coeliac disease. For this purpose, twenty-eight adult coeliac patients [20M, 8F:19-74 years; body mass index (BMI): 18.5-28 kg/m (2)] were recruited. Basal thyroid, adrenal and gonadal function, serum IGF-I and PRL, and routine parameters were evaluated. Dynamic GH secretion was carried out by GHRH plus arginine test. In 20 patients, antipituitary antibodies (APA) were also evaluated. Seven out of 28 patients, independently from disease onset and the gluten-free diet (GFD), showed an impaired GH secretion (25%). All were males, 2 with severe growth hormone deficiency (GHD) and 5 with partial GHD. In patients with GHD, as compared to coeliac patients with normal GH secretion, HOMA (2.1+/-1.2 vs. 0.9+/-0.4) and QUICKI (0.35+/-0.03 vs. 0.39+/-0.02) levels were significantly higher and lower, respectively, while IGF-I levels were slightly lower (17.7+/-3.7 vs. 24.7+/-6.3, p=NS). APA were negative in all 20 patients studied. In conclusion, a significant number of adult coeliac patients show an impaired GH secretion, this alteration being predominant in males and independent from disease onset and diet regimen. Given the absence of APAs, the cause of this pituitary dysfunction remains unclear even if a previous autoimmune involvement in some cases cannot be excluded.
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Abstract
A possible autoimmune aggression to pituitary somatotrophs has been suggested by the occurrence of antipituitary antibodies (APA) directed against GH-secreting cells in some cases of GH deficiency (GHD) both in adults and in children and in some patients with autoimmune poliendocrine syndrome. We also detected APA in some patients with idiopathic short stature (ISS) and suggested that the presence of these antibodies could identify those of them prone to develop GHD. In fact, patients with ISS, resulted positive for APA at the first observation, during a longitudinal follow-up showed an impaired GH response to the stimuli in subsequent years suggestive of acquired GHD. Also in such patients we demonstrated that the target of APA were the somatotrophs and that an autoimmune attack to these cells may be the underlying cause of hormonal impairment in several children with GHD positive for APA. In this connection we suggested that in these patients an early iso-hormonal therapy with recombinant GH may be useful to interrupt or delay the progression towards a clinical GHD.
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Effect of long-term cabergoline therapy on the immunological pattern and pituitary function of patients with idiopathic hyperprolactinaemia positive for antipituitary antibodies. Clin Endocrinol (Oxf) 2008; 69:285-91. [PMID: 18221394 DOI: 10.1111/j.1365-2265.2008.03200.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVE The occurrence of antipituitary antibodies (APA) in patients with idiopathic hyperprolactinaemia (IH) and the effects of dopamine agonists on these antibodies and long-term pituitary function outcome have been so far not evaluated. This longitudinal study was aimed at investigating, in patients with IH the occurrence of APA and the effect of cabergoline on the pituitary function and behaviour of APA. DESIGN Sixty-six patients with IH were studied. APA (by indirect immunofluorescence) and pituitary function were investigated every year for 3 years. RESULTS Seventeen patients resulted APA positive (Group 1) and 49 APA negative (Group 2). Eight patients of Group 1 (Group 1a) and 24 of Group 2 (Group 2a) were asymptomatic and then not treated; instead, nine patients in Group 1 (Group 1b) and 25 in Group 2 (Group 2b), showing symptoms of hyperprolactinaemia, were treated with cabergoline for 2 years. Among the untreated patients, during the follow-up, those with APA positive (Group 1a) showed an increase of APA titres and PRL levels with partial pituitary impairment in some of them; instead those with APA negative (Group 2a) persisted negative with normal pituitary function despite persistent hyperprolactinaemia. Among the treated patients, those with APA positive (Group 1b) showed normalization of PRL levels, APA disappearance and recovery of pituitary function (when initially impaired) during cabergoline treatment, persisting also at last observation (off-therapy). Instead all patients of Group 2b persisted with APA negative during the follow-up with normalization of PRL levels and stable normal pituitary function during cabergoline therapy but showing a further increase of PRL at the last observation. CONCLUSIONS The presence of APA in some patients with IH suggests a possible occurrence of autoimmune hypophysitis at potential/subclinical stage; an early and prolonged cabergoline therapy could interrupt the progression to an overt clinical stage of the disease. However, the small amount of patients investigated suggests caution against generalization of our assumption and prompts to further controlled studies on a more numerous population to verify these conclusions.
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Seminal anti-Mullerian hormone level is a marker of spermatogenic response during long-term gonadotropin therapy in male hypogonadotropic hypogonadism. Hum Reprod 2008; 23:1029-34. [DOI: 10.1093/humrep/den046] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
Prostate cancer (PCa) is the most common cancer for men in Europe, North America, and some parts of Africa. Initially, growth of prostate cancer is usually androgen-dependent, but often it becomes androgen-independent after androgen-deprivation therapy. Managing hormone-refractory prostate carcinoma remains a difficult challenge for clinicians. Retinoids, vitamin A and its synthetic analogs are one of the most studied class of chemopreventive drugs for PCa. Retinoids play a key role in several vital functions as vision and development, and also exert anti-proliferative actions. Anti-proliferative effects of retinoids rely on the regulation of many biological processes, including differentiation, cell proliferation, and apoptosis. Retinoid actions are mediated by two classes of nuclear proteins called retinoic acid (RARalpha,beta and gamma and retinoic alpha,beta and gamma receptors, which are ligand-regulated transcription factors. Effects of both all-trans-retinoic acid (RA), the natural active derivative of vitamin A, and its synthetic derivatives, on prostate gland or prostate cell lines implicate retinoids in the regulation of prostate growth and suppression of PCa development. Deficient retinoid availability and action at the cellular level because of either decreased content or altered metabolism in PCa cells can play a key role in abnormal cellular differentiation pathways, and the loss of anti-proliferative effects. Here we review the in vitro and in vivo effects of retinoids in PCa.
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Abstract
OBJECTIVE In Graves' ophthalmopathy (GO) intercellular adhesion molecule-1 (ICAM-1) is thought to play a key role in lymphocyte infiltration into the orbit, and serum levels of its soluble form are positively correlated to clinical activity score (CAS). Serum antibodies against collagen XIII (CollXIIIAb), a plasma membrane protein expressed at a low level in almost all connective tissue-producing cells, have been detected in GO, but their significance is unclear. The aim of this study was to search for CollXIIIAb in Graves' patients with and without ophthalmopathy and to correlate their levels with CAS and with serum soluble ICAM-1 (sICAM-1) values. PATIENTS We studied 66 patients with Graves' disease whose sera had been previously tested for sICAM-1 levels, grouped as follows: 28 with moderate and active ophthalmopathy (group 1), 12 of them hyperthyroid (group 1a) and 16 euthyroid (group 1b); 13 with mild and inactive ophthalmopathy and normal thyroid function (group 2); 25 without ophthalmopathy (group 3), 11 of them hyperthyroid (group 3a) and 14 euthyroid (group 3b). Finally, 26 sera of normal controls were studied. MEASUREMENTS CollXIIIAb were evaluated by an enzyme-linked immunosorbent assay (ELISA) method. RESULTS In group 1 patients, CollXIIIAb were detected at high levels in 8/12 (66.6%) in group 1a [optical density (OD) ranging from 0.529 to 0.894] and in 10/16 (62.5%) in group 1b (OD 0.560-0.855). In group 2 patients, CollXIIIAb were detected but at low levels (OD 0.205-0.260) in 4/13 patients (30.7%). In group 3 patients, CollXIIIAb were present at low levels in 6/11 (54.5%) of group 3a and in 5/14 (35.7%) of group 3b (OD 0.215-0.290 and 0.144-0.245, respectively). CollXIIIAb were detected in only 4/26 normal controls (15%) but at low levels (OD 0.150-0.185). CollXIIIAb values in both groups 1a and 1b were significantly higher than those of the remaining groups. A positive correlation between CollXIIIAb levels and CAS but not thyroid hormone levels was found in groups 1a, 1b and 2. Moreover, a positive correlation between CollXIIIAb levels and sICAM-1-values was also evidenced in all three groups. CONCLUSIONS Our results suggest that CollXIIIAb could be considered as a further good marker of active inflammatory processes involving the adipose connective tissue in GO. In particular, the high levels of CollXIIIAb in sera of Graves' patients with active ophthalmopathy could reflect an increased expression of type XIII collagen on the membrane of activated fibroblasts in these patients. Thus, the evaluation of these antibodies could be added to other known markers as a useful and inexpensive tool in monitoring Graves' patients and in modulating the treatment of GO.
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Sexuality in aging male. J Endocrinol Invest 2005; 28:55-60. [PMID: 16760627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
A high percentage of men aged 60 or older have satisfactory sexual activity, even if reduced sexual desire, frequency of intercourses and erections, impaired satisfaction with sex and difficulty with orgasm, and decreased semen volume frequently occur. The present report analyses the following issues: erectile dysfunction, fertility, the role of hormones in influencing libido and erection mechanisms, and the therapeutic strategies suggested.
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Abstract
OBJECTIVE The aim of this study was twofold: first to investigate the presence of extraocular muscle antibodies (EMAb) in sera of Graves' patients with ophthalmopathy characterized by clinical extraocular muscle (EM) involvement; second to evaluate in Graves' patients without ophthalmopathy whether longitudinal variations of EMAb have a predictive role for the development of eye disease. PATIENTS We evaluated sera of Graves' patients previously tested for G2sAb and FpAb; in particular, sera of 32 patients with moderate or severe ophthalmopathy and EM involvement: 18 with active disease (group 1), 14 with inactive disease (group 2). Moreover, we evaluated longitudinally sera of 19 Graves' patients without ophthalmopathy previously tested for anti-GS2 (G2sAb) and antiflavoprotein antibodies (FpAb; group 3). During the 18-month follow-up, four of them did not develop ophthalmopathy (group 3a), and 15 did: seven developed eye disease (group 3b) with clinical EM involvement. In particular, moderate disease and clinical activity score (CAS) >/= 4 in four of them, severe ophthalmopathy and CAS </= 1 in three were observed. The remaining eight patients showed moderate ophthalmopathy and CAS >/= 4 without EM involvement (group 3c). MEASUREMENTS EMAb were evaluated in all samples by indirect immunofluorescence method. RESULTS EMAb were detected in 13 out of 18 patients (72.2%) in group 1 (titre 1/32-1/128) and in five out of 14 patients (35.7%) in group 2 (titre 1/2-1/8). As regards to group 3, at the start of the study EMAb were detected in 13 out of 19 patients (72%) at titres 1/2-1/8; during the follow-up they became or persisted negative in all patients in group 3a, while they increased at titres ranging from 1/64 to 1/128 in all patients in group 3b before the onset of ophthalmopathy. Finally, in group 3c, four patients showed a mild increase (1/8-1/16) of EMAb before the onset of eye disease, while four patients were negative during the entire follow-up. CONCLUSIONS Our results indicate that EMAb are a good marker of ophthalmopathy with EM involvement and their titre is higher in patients with active than in those with inactive disease. Thus, even if our results must be confirmed on a larger cohort of patients, the increase of EMAb in patients with Graves' disease could be considered as a risk factor for the development of ophthalmopathy with subclinical/clinical EM impairment. In this connection we propose the evaluation of EMAb, in Graves' patients with subclinical and clinical ophthalmopathy, as a simple and sensitive marker of the EM inflammatory process.
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The role of somatostatin analogs in the management of prostate cancer. J Endocrinol Invest 2003; 26:120-4. [PMID: 15233227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
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