526 results match your criteria: "Pituitary Center[Affiliation]"

The path to becoming a clinical academic researcher is arduous and convoluted, with many hurdles. A good mentor is key to growth and development, not only as one embarks on the journey, but also as a ‘sounding board’ throughout one’s career.

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Altered thalamic volume in patients with mild autonomous cortisol secretion: a structural brain MRI study.

Neuroradiology

June 2023

Division of Endocrinology, Metabolism, and Diabetes, Department of Internal Medicine, Cerrahpasa Medical School, Istanbul University-Cerrahpasa, Istanbul, Türkiye.

Purpose: To compare thalamic volume and cognitive functions of patients with mild autonomous cortisol secretion (MACS) with control subjects and patients with overt Cushing's syndrome (CS).

Methods: In this cross-sectional study, volumes of regions of interest were assessed using 3 T magnetic resonance imaging and a voxel-based morphometry approach in 23 patients with MACS, 21 patients with active CS, 27 patients with CS in remission, and 21 control subjects. Cognitive functions were assessed using validated questionnaires.

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The Combination of Dopamine Agonist Treatment and Surgery May Be the Best Option in Challenging Prolactinoma Cases: A Single-Centre Experience.

World Neurosurg

July 2023

Department of Neurosurgery, Istanbul University-Cerrahpaşa, Istanbul, Turkiye; Pituitary Center, Istanbul University-Cerrahpasa, Istanbul, Turkiye. Electronic address:

Objective: To investigate the initial and long-term remission rates, factors related to remission, secondary treatments, and outcomes for patients with prolactinoma who underwent endoscopic transsphenoidal surgery (ETSS).

Methods: The medical files of the 45 prolactinoma patients who underwent ETSS between 2015 and 2022 were retrospectively reviewed. Relevant demographic and clinical data were obtained.

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The definitive diagnosis of Cushing's disease (CD) in the presence of pituitary microadenoma remains a continuous challenge. Novel available pituitary imaging techniques are emerging. This study aimed to provide a structured analysis of the diagnostic accuracy as well as the clinical use of molecular imaging in patients with ACTH-dependent Cushing's syndrome (CS).

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Non-pituitary GH regulation of the tissue microenvironment.

Endocr Relat Cancer

July 2023

Pituitary Center, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California, USA.

Non-pituitary growth hormone (npGH) expression is well established in extrapituitary tissues, but an understanding of the physiological role of npGH remains rather limited. Pro-tumorigenic npGH impacting the tumor microenvironment has been reviewed. We focus here on autocrine/paracrine npGH effects in non-tumorous tissues and discuss its mechanisms of action in the normal tissue microenvironment.

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Article Synopsis
  • The study aimed to explore how damage to the hypothalamus affects weight gain and behaviors associated with eating in patients with hypothalamic obesity.
  • Researchers analyzed brain structure and function, as well as psychological and behavioral traits in 29 patients with hypothalamic damage and 31 healthy controls.
  • Results showed that patients with hypothalamic damage experienced significant weight gain and exhibited differences in brain activation and eating behaviors, suggesting new mechanisms to consider for treatment in hypothalamic obesity.
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Cushing's disease (CD) is characterized by endogenous hypercortisolism that is associated with increased mortality and morbidity. Due to high recurrence rates in CD, the determination of high-risk patients is of paramount importance. In this study, we aimed to determine recurrence rates and clinical, laboratory, and histological predictors of recurrence in a high volume single-center.

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Pituitary Enlargement and Hypopituitarism in Patients Treated with Immune Checkpoint Inhibitors: Two Sides of the Same Coin?

J Pers Med

February 2023

Departments of Medicine (Division of Endocrinology, Diabetes and Clinical Nutrition) and Neurological Surgery, and Pituitary Center, Oregon Health & Science University, Portland, OR 97232, USA.

Background: Immune checkpoint inhibitor hypophysitis (IIHs) is an emerging problem in cancer patients treated with immune checkpoint inhibitors (ICIs). We aimed to describe the clinical and molecular features of a multicenter series of IIHs.

Methods: Demographic and clinical features were retrospectively collected for all cases.

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The current increase of life expectancy is associated with the presence of endocrine diseases in the elderly. The management of hypopituitarism in this group of patients is a challenging task. A correct diagnosis, which represents an essential requisite for an appropriate medical treatment, can be difficult because of the physiological changes occurring in pituitary function with aging, which may lead to challenges in the interpretation of laboratory results.

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Symptoms at presentation in conservatively managed patients with non-functioning pituitary adenomas.

Hormones (Athens)

June 2023

Pituitary Center, Oregon Health & Science University, Mail Code CH8N, 3303 South Bond Avenue, Portland, OR, 97239, USA.

Purpose: Hypopituitarism and tumor growth are rare in patients with non-functioning pituitary microadenomas (NFPmA). However, patients often present with non-specific symptoms. The aim of this brief report is to examine presenting symptomatology in patients with NFPmA compared to patients with non-functioning pituitary macroadenomas (NFPMA).

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Pituitary and SARS CoV-2: An unremitting conundrum.

Best Pract Res Clin Endocrinol Metab

July 2023

Departments of Medicine (Endocrinology, Diabetes and Clinical Nutrition) and Neurological Surgery, and Pituitary Center, Oregon Health & Science University, Portland, Oregon, USA. Electronic address:

There is increased interest related to the impact of coronavirus disease 19 (COVID-19) on the endocrine system and in particular on the pituitary gland. Over the course of the severe infection with acute respiratory syndrome coronavirus 2 (SARS-CoV-2), there are both acute and delayed effects on the pituitary, related to infection and/or treatment. Hypopituitarism, pituitary apoplexy and hypophysitis have been all reported, as well as arginine vasopressin deficiency (diabetes insipidus) and syndrome of inappropriate antidiuretic hormone secretion.

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Exploring the role of the tumor microenvironment in refractory pituitary tumor pathogenesis.

Pituitary

June 2023

Pituitary center, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Cedars Sinai Medical Center, 127 S San Vicente Blvd., A6600, 90048, Los Angeles, CA, USA.

Purpose: Treatment-refractory pituitary tumors demonstrate characteristics resembling those of highly aggressive tumors, in which the local tumor microenvironment (TME) plays a dominant role in promoting aggressiveness and refractoriness. However, role of the TME in pituitary tumors is not well studied.

Methods: Literature on the TME and development of refractory pituitary tumors was reviewed RESULTS: TME harbors tumorigenic immune cells, cancer-associated fibroblasts (CAF), extracellular matrix, and other factors that have been shown to affect behavior of tumor tissue.

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Serum and hair steroid profiles in patients with nonfunctioning pituitary adenoma undergoing surgery: A prospective observational study.

J Steroid Biochem Mol Biol

June 2023

Department of Internal Medicine, Seoul National University College of Medicine, Republic of Korea; Department of Internal Medicine, Seoul National University Hospital, Republic of Korea,; Pituitary Center, Seoul National University Hospital, Republic of Korea. Electronic address:

Patients who undergo transsphenoidal surgery (TSS) experience perioperative hormonal changes, but there are few studies on the perioperative changes of serum and hair steroid profiles. This study investigated the perioperative changes in steroid metabolic signatures in patients with nonfunctioning pituitary adenoma (NFPA) who underwent transsphenoidal surgery (TSS). A total of 55 participants who underwent TSS for NFPA at a single center between July 2017 and October 2018 were enrolled.

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Traumatic brain injury (TBI) is increasingly recognized, with an incidence of approximately 110 per 100,000 in pediatric populations and 618 per 100,000 in adolescent and adult populations. TBI often leads to cognitive, behavioral, and physical consequences, including endocrinopathies. Deficiencies in anterior pituitary hormones (e.

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Diabetes Remission.

Endocrinol Metab Clin North Am

March 2023

The Emory Pituitary Center, Emory University School of Medicine, 1365 B Clifton Road, NorthEast B6209, Atlanta, GA 30322, USA. Electronic address:

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Context: Postoperative hyponatremia leads to prolonged hospital length of stay and readmission within 30 days.

Objective: To assess 3 strategies for reducing rates of postoperative hyponatremia and analyze risk factors for hyponatremia.

Design: Two retrospective analyses and 1 prospective study.

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Germline loss-of-function variants are enriched in subjects with pituitary hypersecretion.

medRxiv

January 2023

Section on Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD 20892, USA.

Article Synopsis
  • A study linked a specific genetic variant to pituitary gigantism and investigated both sporadic and familial PAs among 299 individuals and 17 families, but no major genetic variations were found.
  • Seven potentially harmful genetic variants were identified that affect protein function, which could lead to new treatments that target these genetic changes and improve outcomes for patients with pituitary disorders.
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Messages from a pituitary surgeon.

Endocr J

January 2023

Honorary Member, The Japan Endocrine Society.

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Background: Childhood cancer survivors face late health problems; despite advances in research, details on risk remain unclear. We describe the methodological aspects of the Dutch Childhood Cancer Survivor Study (DCCSS) cross-sectional clinical study (LATER 2 study).

Procedure: From the multi-center DCCSS LATER cohort of 6165 five-year survivors diagnosed during 1963-2001, we invited 4735 eligible survivors in 2016, as well as siblings and parents of survivors.

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Individualized acromegaly treatment: Is stereotactic radiation therapy changing the paradigm?

Front Endocrinol (Lausanne)

January 2023

Department of Medicine, Division of Endocrinology, Diabetes and Clinical Nutrition, Oregon Health & Science University, Portland, OR, United States.

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Molecular targets in acromegaly.

Front Endocrinol (Lausanne)

December 2022

Department of Medicine, Pituitary Center, Cedars-Sinai Medical Center, Los Angeles, CA, United States.

Molecular therapeutic targets in growth hormone (GH)-secreting adenomas range from well-characterized surface receptors that recognize approved drugs, to surface and intracellular markers that are potential candidates for new drug development. Currently available medical therapies for patients with acromegaly bind to somatostatin receptors, GH receptor, or dopamine receptors, and lead to attainment of disease control in most patients. The degree of control is variable: however, correlates with both disease aggressiveness and tumor factors that predict treatment response including somatostatin receptor subtype expression, granulation pattern, kinases and their receptors, and other markers of proliferation.

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Objective: To evaluate the clinical presentation, biochemical profile, and etiology of Cushing's syndrome (CS) in women stratified by age.

Methods: Retrospective study of patients with CS, treated at Rabin Medical Center from 2000 to 2020, or Maccabi Healthcare Services in Israel from 2005 to 2017. Disease etiology, presentation and biochemical profile were compared according to age at diagnosis: ≤ 45, 46-64, or ≥ 65 years.

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Context: Diagnostic accuracy of testing currently used for the differential diagnosis of Cushing disease (CD) vs ectopic adrenocorticotropic hormone secretion (EAS) is difficult to interpret.

Objective: The present study aimed to identify and evaluate the diagnostic accuracy of the corticotropin-releasing hormone (CRH) test, the desmopressin test, and the high-dose dexamethasone suppression test (HDDST) when used to establish a CD or EAS diagnosis.

Methods: This study is a systematic review of the literature and meta-analysis.

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A systematic literature review to evaluate extended dosing intervals in the pharmacological management of acromegaly.

Pituitary

February 2023

Neuroendocrinology Research Center/Endocrinology Division, Medical School and Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.

Purpose: This systematic literature review investigated whether extended dosing intervals (EDIs) of pharmacological acromegaly treatments reduce patient burden and costs compared with standard dosing, while maintaining effectiveness.

Methods: MEDLINE/Embase/the Cochrane Library (2001-June 2021) and key congresses (2018-2021) were searched and identified systematic literature review bibliographies reviewed. Included publications reported on efficacy/effectiveness, safety and tolerability, health-related quality of life (HRQoL), and patient-reported and economic outcomes in longitudinal/cross-sectional studies in adults with acromegaly.

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