Publications by authors named "Grottoli S"

Purpose: Acromegaly, a rare disease with peak incidence in early adulthood, is marked by significant diagnostic delay and increased mortality due to complications. While older patients often show milder disease activity, they experience longer diagnostic delay. Higher hormonal levels, advanced age, and prolonged delay are associated with more systemic complications.

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: In pituitary adenomas, examinations of surgical specimens have shown that dural invasion occurs in 42-85% of cases. No studies about dura mater invasion have been conducted specifically in acromegaly patients. The aim of the present study was to evaluate the relationship between histologically dural invasion and the main features of GH-secreting adenomas.

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Somatostatin and its analogs have been for years a mainstay treatment for a variety of hypersecretory conditions and neoplasms of the endocrine system. This chapter summarizes their pharmacological properties, their indication in the context of acromegaly, and the best way to handle this class of drugs for the treatment of the patient with acromegaly.

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Article Synopsis
  • * While there are improvements in body composition, bone health, and quality of life, there isn’t enough evidence to prove it significantly reduces cardiovascular events or mortality, and treatment can be quite expensive.
  • * It's advised to start GH therapy at low doses for optimal results and close monitoring due to potential risks like glucose intolerance and recurrence of tumors or cancer over time.
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The regulation of growth hormone (GH) synthesis and secretion by somatotroph cells of the anterior pituitary is a highly complex process, mediated by a variety of neuroendocrine and peripheral influences. In particular, a key role is played by the hypothalamic peptides growth hormone-releasing hormone (GHRH) and somatostatin, which regulate the somatotroph axis with opposite actions, stimulating and inhibiting GH release, respectively. Since the discovery of GHRH about 50 years ago, many pathophysiological studies have explored the underlying intricate hormonal balance that regulates GHRH secretion and its interplay with the somatotroph axis.

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Adult growth hormone deficiency (GHD) has been recognized since the late 1980s. The clinical manifestations of adult GHD are often nonspecific, and diagnosis relies on GH stimulation tests, which are intricate, costly, time-consuming, and may carry the risk of adverse effects. Diagnosis is further complicated by factors like age, sex, and BMI, which affect GH response during testing.

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Purpose: The desmopressin daily dose requirement is highly variable among patients with arginine vasopressin (AVP) deficiency (i.e. central diabetes insipidus) and few studies to date have evaluated this topic, with often inconclusive results.

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Pituitary hormones play a crucial role in regulating skeletal physiology, and skeletal fragility is a frequent complication of pituitary diseases. The ability to predict the risk of fracture events is crucial for guiding therapeutic decisions; however, in patients with pituitary diseases, fracture risk estimation is particularly challenging. Compared to primary osteoporosis, the evaluation of bone mineral density by dual X-ray absorptiometry is much less informative about fracture risk.

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Hypothyroidism is a frequently diagnosed endocrine disorder. Common signs and symptoms include fatigue, cold intolerance, hoarseness, dry skin, constipation, a slow relaxation phase of deep tendon reflexes, and bradycardia. However, some patients may exhibit atypical signs and symptoms, which can result in diagnostic confusion.

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Article Synopsis
  • Copeptin has the potential to predict central diabetes insipidus (CDI) post-neurosurgery, particularly in acromegaly patients, but its role in monitoring fluid balance is still unclear.
  • A study analyzed 15 acromegaly patients undergoing surgery, examining their fluid balance and levels of copeptin and growth hormone (GH) before and after the procedure.
  • Results showed that high copeptin levels were linked to increased risk of polyuria post-surgery, while GH levels had a notable connection to negative fluid balance, indicating that copeptin could be useful for early risk assessment in these patients.
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Purpose: First-line medical therapy for acromegaly management includes first-generation somatostatin receptor ligands (fgSRLs), but resistance limits their use. Despite international guidelines, the choice of second-line therapy is debated.

Methods: We aim to discuss resistance to fgSRLs, identify second-line therapy determinants and assess glycemia's impact to provide valuable insights for acromegaly management in clinical practice.

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Purpose: Cabergoline (CAB) has shown to have benefic effects on the metabolism in different clinical settings but its metabolic role in acromegaly disease has not been studied yet. Aim of our study was to evaluate the impact of CAB on glucose metabolism and weight in patients with acromegaly.

Methods: All patients with acromegaly undergoing continuous treatment with CAB for at least 6 months were retrospectively screened.

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To investigate whether copeptin, MR-proADM and MR-proANP, alone or integrated with the SOFA, MuLBSTA and SAPS II scores, are capable of early recognition of COVID-19 ICU patients at increased risk of adverse outcomes. For this predefined secondary analysis of a larger cohort previously described, all consecutive COVID-19 adult patients admitted between March and December 2020 to the ICU of a referral, university hospital in Northern Italy were screened, and clinical severity scores were calculated upon admission. A blood sample for copeptin, MR-proADM and MR-proANP was collected within 48 h (T1), on day 3 (T3) and 7 (T7).

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Context: Hyponatremia is associated with increased risk of osteoporosis and fractures. The impact of hyponatremia on non-invasive indices of bone quality, however, is unknown.

Objective: To evaluate whether trabecular bone microarchitecture, assessed non-invasively by trabecular bone score (TBS), is altered in patients with hyponatremia.

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Background: Patients with non-functioning pituitary adenoma (NFPA) often present with a variety of clinical manifestations and comorbidities, mainly determined by the local mass effect of the tumor and by hypopituitarism. Whether this has an impact on overall mortality, however, is still unclear.

Methods: PubMed/Medline, EMBASE, and Cochrane Library databases were systematically searched until May 2023 for studies reporting data either about standardized mortality ratios (SMRs) or about predictors of mortality in patients with NFPA.

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Purpose: Prolactin (PRL)-secreting tumours are associated with infertility and can be reverted by dopamine agonist (DA) therapy. The suspension of DA is recommended once pregnancy is established, as all DAs cross the placenta. The aim of the study was to evaluate the rate of maternal-foetal complications in women treated with cabergoline (CAB) or bromocriptine (BRM) for prolactinoma during gestation and the effect of pregnancy on prolactinoma progression.

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Radiomic analysis has emerged as a valuable tool for extracting quantitative features from medical imaging data, providing in-depth insights into various contexts and diseases. By employing methods derived from advanced computational techniques, radiomics quantifies textural information through the evaluation of the spatial distribution of signal intensities and inter-voxel relationships. In recent years, these techniques have gained considerable attention also in the field of pituitary tumors, with promising results.

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Objective: This study aimed to assess the long-term outcome of patients with acromegaly.

Design: This is a multicenter, retrospective, observational study which extends the mean observation period of a previously reported cohort of Italian patients with acromegaly to 15 years of follow-up.

Methods: Only patients from the centers that provided information on the life status of at least 95% of their original cohorts were included.

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Article Synopsis
  • The study aimed to investigate how various patient, disease, and treatment-related factors affect the likelihood of achieving long-term control of acromegaly, a hormonal disorder.
  • Data from 1546 patients treated with pegvisomant were analyzed over a 10-year period, focusing on baseline IGF-1 levels and other factors through comprehensive statistical analysis.
  • Key findings indicated that lower baseline IGF-1 levels (especially <300 µg/L) were strongly associated with improved long-term control of acromegaly, while factors such as age, sex, BMI, and pegvisomant dosage were not significant predictors.
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  • The study aimed to assess the relationship between prolactin (PRL) levels and pituitary abnormalities in a diverse group of patients with hyperprolactinemia, as existing guidelines primarily focus on women.
  • Researchers analyzed data from 1,253 patients, identifying 139 who met criteria for inclusion; findings revealed that 76.3% had pituitary disease, with PRL levels showing limited effectiveness in predicting abnormalities, particularly when high PRL values were excluded.
  • The conclusion highlights a significant occurrence of pituitary issues in hyperPRL patients, suggesting that MRI scans are essential for diagnosis, emphasizing the need for further research to clarify PRL thresholds for imaging.
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Purpose: The precise effects of non-steroidal anti-inflammatory drugs on the neuroendocrine hydro-electrolytic regulation are not precisely understood. The aim of this pilot study was to evaluate, in healthy subjects, the neuroendocrine response of the antidiuretic system to intravenous diclofenac infusion.

Methods: For this single-blinded, cross-over study, we recruited 12 healthy subjects (50% women).

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Introduction: The proportion of patients with low GH response to provocative tests increases with the number of other pituitary hormone deficiencies, reason why in panhypopituitary patients GH stimulation tests may be unnecessary to diagnose GH deficiency (GHD) PURPOSE: To re-evaluate the diagnostic cut-offs of GH response to GHRH + arginine (ARG) test related to BMI, considering the patients' pituitary function as the gold standard for the diagnosis of GHD.

Methods: The GH responses to GHRH + ARG were studied in 358 patients with history of hypothalamic-pituitary disease. GHD was defined by the presence of at least 3 other pituitary deficits (n = 223), while a preserved somatotropic function was defined by the lack of other pituitary deficits and an IGF-I SDS ≥ 0 (n = 135).

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Background: Acromegaly (ACRO) is a chronic rare disease caused by a pathological increase in growth hormone (GH) secretion. In ACRO an increased prevalence of psychiatric disorders has been demonstrated, in particular depressive disorders, associated to a significant deterioration of the quality of life, independently from disease control. In addition, anger feelings, often detected in subjects affected by chronic disease, have not yet been investigated, in pituitary patients.

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