Publications by authors named "Annamaria Erdei"

Article Synopsis
  • The study investigates how myofibroblast differentiation (MD) affects hyaluronan (HA) turnover in orbital fibroblasts, particularly in the context of thyroid eye disease (TED).
  • Using primary cultures from TED and non-TED tissue samples, researchers induced MD and measured various factors like proliferation, HA levels, and enzyme expressions related to HA metabolism.
  • Findings revealed that MD leads to lower HA turnover by inhibiting certain enzymes while increasing HA synthesis, suggesting that targeting specific hyaluronidases could be a new approach to treat TED.
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The growth hormone-insulin-like growth factor-1 (GH-IGF-1) axis plays a crucial role in maintaining the normal function of the cardiovascular system. Results of the last decades demonstrated that GH-IGF-1 takes part in regulating peripheral resistance and contributes to preserving physiological cardiac mass and left ventricular function. Vasculoprotective functions of the GH-IGF-1 axis are believed to counteract atherosclerosis.

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Orbital connective tissue expansion is a hallmark of Graves’ orbitopathy (GO). In moderate-to-severe active GO, glucocorticoids (GC) are the first line of treatment. Here we show that hydrocortisone (HC), prednisolone (P), methylprednisolone (MP), and dexamethasone (DEX) inhibit the hyaluronan (HA) production of orbital (OF) and dermal (DF) fibroblasts.

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Background: Currently there are no widely applied methods which could identify, at the time of head trauma, those mild traumatic brain injury (mTBI) patients who later develop pituitary dysfunction. The effect of alcohol consumption on post-TBI endocrine dysfunction is unclear.

Methods: Five hundred and eight TBI patients, 406 of them with mTBI, were studied.

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Introduction: Dysthyroid optic neuropathy (DON) is a rare, severe form of thyroid eye disease, in which decreased visual acuity is accompanied by characteristic MRI findings. The treatment of DON has always been a challenge.

Case Presentation: In a patient in whom visual acuity deteriorated on the left eye, mannitol 20% 200 mL followed by furosemide 40 mg 6 h later, administered daily, were initiated on the day of admission.

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Immunoglobulin G4-related disease has become the focus of interest in recent years. The disease is characterized by inflammation of the organs involved, often with a macroscopic appearance suggestive of a tumor, elevated immuno-globulin G4 levels, immunoglobulin G4-positive plasma cell infiltration on histological examination, fibrosis, oblit-erative phlebitis, and typically a rapid therapeutic response to corticosteroids. The disease can show a variety of organ manifestations, with frequent involvement of exocrine glands.

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Thyroid autoimmunity in Graves’ disease (GD) is accompanied by Graves’ orbitopathy (GO) in 40% of the cases. Orbital fibroblasts (OF) play a key role in the pathogenesis and cigarette smoking is a known deteriorating factor. Alongside conventional cigarettes (CC) new alternatives became available for smokers, including heated tobacco products (HTP) and E-cigarettes (ECIG).

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Adult growth hormone deficiency (AGHD) is considered a rare endocrine disorder involving patients with childhood-onset and adult-onset growth hormone deficiency (AoGHD) and characterized by adverse cardiometabolic risk profile. Besides traditional cardiovascular risk factors, endothelial dysfunction, low-grade inflammation, impaired adipokine profile, oxidative stress and hypovitaminosis D may also contribute to the development of premature atherosclerosis and higher cardiovascular risk in patients with AGHD. Growth hormone replacement has been proved to exert beneficial effects on several cardiovascular risk factors, but it is also apparent that hormone substitution in itself does not eliminate all cardiometabolic abnormalities associated with the disease.

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Introduction: Thyroid eye disease (TED) is an autoimmune disease of the orbits. Once developed, complete cure is rare. Plasminogen activator inhibitor type 1 (PAI-1) contributes to remodeling of connective tissue and has a central role in the pathogenesis of TED.

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Background: Thyroid associated orbitopathy (TAO) is the most common extrathyroidal complication of Graves' disease. The disease course ranges from mild, where symptomatic therapy is sufficient, to severe, where high dose steroid administration or orbital decompression surgery is required. Women of their reproductive age are more likely to be affected.

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Purpose: Hyaluronan (HA) overproduction by orbital fibroblasts (OFs) is a major factor in the pathogenesis of Graves' orbitopathy (GO). 4-methylumbelliferone (4-MU) is an inhibitor of HA synthesis in different cell types in vitro and has beneficial effects in animal models of autoimmune diseases.

Methods: HA production and mRNA expression of HA synthases (HAS1, HAS2, and HAS3) and hyaluronidases (HYAL1 and HYAL2) were measured in the presence and absence of 4-MU in unstimulated and transforming growth factor-β-stimulated fibroblasts from GO orbital (n = 4), non-GO orbital (n = 4), and dermal origin (n = 4).

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The authors present the case of a multiplex endocrine neoplasia type 2A (MEN2A). The 55-year-old woman underwent detailed examinations for abdominal complaints. Bilateral adrenal masses and thyroid nodular goiter were found.

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Article Synopsis
  • - Arterial hypertension is a widespread global health issue, affecting over 25% of the population, often with unknown causes but about 10% linked to secondary conditions like endocrine disorders, particularly thyroid diseases.
  • - Both overt and subclinical thyroid disorders (hyperthyroidism and hypothyroidism) can contribute to mild hypertension, although the exact mechanisms remain partially understood and clinical findings are often conflicting.
  • - Recent research has identified genetic mutations in the thyroid regulatory system that may lead to cardiovascular issues, while thyroid dysfunction can also cause lipid imbalances, further affecting blood pressure and the cardiovascular system.
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Purpose: Multiple endocrine neoplasia type 1 is a rare tumor syndrome caused by germline mutations of MEN1 gene. Phenotype varies widely, and no definitive correlation with the genotype has been observed. Mutation-negative patients with MEN1-associated tumors represent phenocopies.

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Purpose: Graves' orbitopathy (GO) is a complication of Graves' disease (GD), the development of which cannot be predicted at the time of diagnosis of GD. Our aims were (i) to test if orbital Tc-labelled diethylenetriamine pentaacetic acid single-photon emission computer tomography (DTPA SPECT) can predict development of GO later during the course of the disease and (ii) to study whether orbital immune activity can be detected in GD patients who do not develop GO during follow-up.

Methods: Fifty-four orbits of 27 patients with newly diagnosed GD were entered into the case-control study.

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Background: Immunoglobulin G4-related disease (IgG4-rd) is characterized by lymphoplasmacytic infiltration and tissue fibrosis. Orbital manifestations of IgG4-rd may include unilateral or bilateral proptosis, cicatricial extraocular muscle myopathy, orbital inflammation and pain which may mimic ophthalmic Graves' disease.

Case Presentation: A 25-year-old woman has been referred to the endocrinology clinic, 4 months after delivery, with suspected Graves' orbitopathy.

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More than 80% of traumatic brain injury (TBI) patients suffer from mild TBI (mTBI). However, even mTBI carries the risk of late pituitary dysfunction. A predictive biomarker at the time of injury that could identify patients who subsequently may develop permanent pituitary dysfunction would help to direct patients toward endocrine care.

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During the course of Graves' orbitopathy (GO), orbital fibroblasts are exposed to factors that lead to proliferation and extracellular matrix (ECM) overproduction. Increased levels of tissue plasminogen activator inhibitor type 1 (PAI-1 (SERPINE1)) might promote the accumulation of ECM components. PAI-1 expression is regulated by cell density and various cytokines and growth factors including transforming growth factorβ(TGF-β).

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Graves' orbitopathy is the extrathyroidal manifestation of Graves' disease, which is the most common cause of exophthalmos. As eye symptoms usually coincide with the development of thyrotoxicosis, the diagnosis of the disease is rarely difficult. The aim of the authors was to summarize the differential diagnosis of Graves' orbitopathy based on literature review and presentation of their own four problematic cases on this topic.

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Background: Symptomatic paroxysmal hypertension without significantly elevated catecholamine concentrations and with no evidence of an underlying adrenal tumor is known as pseudopheochromocytoma.

Methods: We describe the case of a female patient with paroxysmal hypertensive crises accompanied by headache, vertigo, tachycardia, nausea and altered mental status. Previously, she was treated for a longer period with alprazolam due to panic disorder.

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Graves' orbitopathy is the most common extrathyroidal manifestation of Graves' disease. Up to now, curative treatment modalities for the most severe sight-threatening cases have not been developed. Here the authors summarize the treatment protocol of Graves' orbitopathy and review novel therapeutic options.

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Abstract The aim of this investigations was to study the effectiveness of anti-CD20 antibody therapy in Graves' orbitopathy (GO) resistant to glucocorticoids. Five patients were entered in the study. The protocol required no improvement of orbital status after a recent course of glucocorticoids.

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Background: Secretion of cytokines and expression of cytokine receptors have been reported in the orbital connective tissue in Graves' orbitopathy (GO). Lacrimal glands are putative autoimmune targets, and changes in tear film and ocular surface have also been described. Our aim was to characterize the cytokine profile of tears in patients with Graves' disease (GD) with and without orbitopathy.

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Unlabelled: Although macrovascular complications are typical for type 2 diabetes mellitus (T2DM), cerebral microvascular damage develops both in type 1 diabetes mellitus (T1DM) and T2DM. Color Doppler ultrasound is widely used for the examination of large- and medium-sized arteries, whereas SPECT and MRI are capable of identifying disturbances in the circulation of microvessels. Former studies using semiquantitative methods showed reduced reactivity and reserve capacity of cerebral vessels in both T1DM and T2DM patients.

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Background: In Graves' ophthalmopathy (GO), only patients with immunologically active disease respond to immunosuppressive therapy. Previous studies and theoretical considerations suggest that elevated orbital (99m)Tc-diethylenetriamine-pentaacetic-acid (DTPA) single photon emission computed tomography (SPECT) reflects inflammatory disease activity. We studied whether corticosteroid treatment causes a substantial decrease in DTPA uptake in GO, a result consistent with successful immunosuppressive treatment of GO and referred to as a favorable treatment outcome.

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