Endocrinology and Metabolism

Original Article

Hypothalamus and pituitary gland
Preoperative Serum Copeptin Can Predict Delayed Hyponatremia after Pituitary Surgery in the Absence of Arginine Vasopressin Deficiency: Ho Kang, Seung Shin Park, Yoo Hyung Kim, Hwan Sub Lim, Mi-Kyeong Lee, Kyoung-Ryul Lee, Jung Hee Kim, Yong Hwy Kim; Endocrinol Metab. 2024;39(1):164-175. Published online January 3, 2024; DOI: https://doi.org/10.3803/EnM.2023.1792

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Abstract PDF Supplementary Material PubReader ePub: Background
Delayed postoperative hyponatremia (DPH) is the most common cause of readmission after pituitary surgery. In this study, we aimed to evaluate the cutoff values of serum copeptin and determine the optimal timing for copeptin measurement for the prediction of the occurrence of DPH in patients who undergo endoscopic transsphenoidal approach (eTSA) surgery and tumor resection.
Methods
This was a prospective observational study of 73 patients who underwent eTSA surgery for pituitary or stalk lesions. Copeptin levels were measured before surgery, 1 hour after extubation, and on postoperative days 1, 2, 7, and 90.
Results
Among 73 patients, 23 patients (31.5%) developed DPH. The baseline ratio of copeptin to serum sodium level showed the highest predictive performance (area under the curve [AUROC], 0.699), and its optimal cutoff to maximize Youden’s index was 2.5×10^–11, with a sensitivity of 91.3% and negative predictive value of 92.0%. No significant predictors were identified for patients with transient arginine vasopressin (AVP) deficiency. However, for patients without transient AVP deficiency, the copeptin-to-urine osmolarity ratio at baseline demonstrated the highest predictive performance (AUROC, 0.725). An optimal cutoff of 6.5×10^–12 maximized Youden’s index, with a sensitivity of 92.9% and a negative predictive value of 94.1%.
Conclusion
The occurrence of DPH can be predicted using baseline copeptin and its ratio with serum sodium or urine osmolarity only in patients without transient AVP deficiency after pituitary surgery.

Review Article

Hypothalamus and Pituitary Gland
Advances in Pituitary Surgery: Yoon Hwan Byun, Ho Kang, Yong Hwy Kim; Endocrinol Metab. 2022;37(4):608-616. Published online August 19, 2022; DOI: https://doi.org/10.3803/EnM.2022.1546

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Pituitary surgery has advanced considerably in recent years with the exploration and development of various endoscopic approaches and techniques. Different endoscopic skull base approaches are being applied to access sellar tumors in different locations. Moreover, extracapsular dissection and cavernous sinus exploration have enabled gross total resection of sellar tumors where it could not have been achieved in the past. Techniques for skull base reconstruction have also progressed, allowing surgeons to remove larger and more complicated tumors than before. This review article discusses different endoscopic skull base approaches, surgical techniques for removing pituitary adenomas, and reconstruction methods for repairing postoperative low-flow and high-flow cerebrospinal fluid leakage.

Citations

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Serum and hair steroid profiles in patients with nonfunctioning pituitary adenoma undergoing surgery: A prospective observational study
Seung Shin Park, Yong Hwy Kim, Ho Kang, Chang Ho Ahn, Dong Jun Byun, Man Ho Choi, Jung Hee Kim
The Journal of Steroid Biochemistry and Molecular Biology.2023; 230: 106276. CrossRef
Pituitary disease and anaesthesia
Kim Rhodes, Robert John, Astri Luoma
Anaesthesia & Intensive Care Medicine.2023; 24(6): 348. CrossRef
Орфанні ендокринні захворювання: сучасні тенденції хірургічного лікування в Україні
M.D. Tronko, B.B. Guda
Endokrynologia.2022; 27(4): 287. CrossRef

Special Article

Miscellaneous
COVID-19 Vaccination for Endocrine Patients: A Position Statement from the Korean Endocrine Society: Cheol Ryong Ku, Kyong Yeun Jung, Chang Ho Ahn, Jun Sung Moon, Ju Hee Lee, Eun Heui Kim, Hyemi Kwon, Hee Kyung Kim, Sunghwan Suh, Sangmo Hong, Jeonghoon Ha, Eun Roh, Jin Hwa Kim, Mi-kyung Kim, the Committee of Clinical Practice Guideline of the Korean Endocrine Society; Endocrinol Metab. 2021;36(4):757-765. Published online August 17, 2021; DOI: https://doi.org/10.3803/EnM.2021.404

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Since the first outbreak of coronavirus disease 2019 (COVID-19), ongoing efforts have been made to discover an efficacious vaccine against COVID-19 to combat the pandemic. In most countries, both mRNA and DNA vaccines have been administered, and their side effects have also been reported. The clinical course of COVID-19 and the effects of vaccination against COVID-19 are both influenced by patients’ health status and involve a systemic physiological response. In view of the systemic function of endocrine hormones, endocrine disorders themselves and the therapeutics used to treat them can influence the outcomes of vaccination for COVID-19. However, there are very limited data to support the development of clinical guidelines for patients with specific medical backgrounds based on large clinical trials. In the current severe circumstances of the COVID-19 pandemic, position statements made by clinical specialists are essential to provide appropriate recommendations based on both medical evidence and clinical experiences. As endocrinologists, we would like to present the medical background of COVID-19 vaccination, as well as precautions to prevent the side effects of COVID-19 vaccination in patients with specific endocrine disorders, including adrenal insufficiency, diabetes mellitus, osteoporosis, autoimmune thyroid disease, hypogonadism, and pituitary disorders.

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Rimesh Pal, Ameya Joshi, Sanjay K. Bhadada, Mainak Banerjee, Suresh Vaikkakara, Satinath Mukhopadhyay
Endocrine Practice.2022; 28(4): 425. CrossRef
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Thyroid.2022; 32(5): 505. CrossRef
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AACE Clinical Case Reports.2022; 8(4): 171. CrossRef
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Ach Taieb, El Euch Mounira
Vaccines.2022; 10(12): 2004. CrossRef
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European Journal of Endocrinology.2022; 187(1): K7. CrossRef
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Original Article

Hypothalamus and Pituitary Gland
Heart Rate Variability in Postoperative Patients with Nonfunctioning Pituitary Adenoma: Jeonghoon Ha, Hansang Baek, Chaiho Jeong, Minsoo Yeo, Seung-Hwan Lee, Jae Hyoung Cho, Ki-Hyun Baek, Moo Il Kang, Dong-Jun Lim; Endocrinol Metab. 2021;36(3):678-687. Published online June 10, 2021; DOI: https://doi.org/10.3803/EnM.2021.978

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Background
Decreased heart rate variability (HRV) has been reported to be associated with cardiac autonomic dysfunction. Hypopituitarism in nonfunctioning pituitary adenoma (NFPA) is often linked to increased cardiovascular mortality. We therefore hypothesized that postoperative NFPA patients with hormone deficiency have an elevated risk of HRV alterations indicating cardiac autonomic dysfunction.
Methods
A total of 22 patients with NFPA were enrolled in the study. Between 3 and 6 months after surgery, a combined pituitary function test (CPFT) was performed, and HRV was measured. The period of sleep before the CPFT was deemed the most stable period, and the hypoglycemic period that occurred during the CPFT was defined as the most unstable period. Changes in HRV parameters in stable and unstable periods were observed and compared depending on the status of hormone deficiencies.
Results
In patients with adrenocorticotropic hormone (ACTH) deficiency with other pituitary hormone deficiencies, the low frequency to high frequency ratio, which represents overall autonomic function and is increased in the disease state, was higher (P=0.005). Additionally, the standard deviation of the normal-to-normal interval, which decreases in the autonomic dysfunction state, was lower (P=0.030) during the hypoglycemic period. In panhypopituitarism, the low frequency to high frequency ratio during the hypoglycemic period was increased (P=0.007).
Conclusion
HRV analysis during CPFT enables estimation of cardiac autonomic dysfunction in patients with NFPA who develop ACTH deficiency with other pituitary hormone deficiencies or panhypopituitarism after surgery. These patients may require a preemptive assessment of cardiovascular risk.

Citations

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Heart Rate Variability in Subjects with Severe Allergic Background Undergoing COVID-19 Vaccination
Maria Bernadette Cilona, Filippo D’Amico, Chiara Asperti, Giuseppe Alvise Ramirez, Stefano Turi, Giovanni Benanti, Shai Marc Bohane, Serena Nannipieri, Rosa Labanca, Matteo Gervasini, Federica Russetti, Naomi Viapiana, Martina Lezzi, Giovanni Landoni, Lor
Vaccines.2023; 11(3): 567. CrossRef
Pituitary Diseases and COVID-19 Outcomes in South Korea: A Nationwide Cohort Study
Jeonghoon Ha, Kyoung Min Kim, Dong-Jun Lim, Keeho Song, Gi Hyeon Seo
Journal of Clinical Medicine.2023; 12(14): 4799. CrossRef
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Journal of Clinical Medicine.2022; 11(12): 3421. CrossRef

Review Articles

Hypothalamus and Pituitary gland
Best Achievements in Pituitary and Adrenal Diseases in 2020: Chang Ho Ahn, Jung Hee Kim; Endocrinol Metab. 2021;36(1):51-56. Published online February 24, 2021; DOI: https://doi.org/10.3803/EnM.2021.108

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Significant progress in pituitary and adrenal diseases was made in 2020. This review presents major translational and clinical advances in research on pituitary and adrenal diseases, encompassing their epidemiology, pathogenesis, diagnosis, and clinical management. We address the controversy regarding the nomenclature of pituitary neuroendocrine tumors, omics-based molecular classification of pituitary adenomas, and novel drugs for Cushing’s disease in the field of pituitary diseases. In the field of adrenal diseases, we cover big data-driven epidemiology of adrenal tumors, steroid profiling as a new diagnostic tool, and the utility of scoring systems in the decision-making process of managing primary aldosteronism. This brief article will broaden readers’ understanding of pituitary and adrenal diseases.

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Surgical management and outcomes of spinal metastasis of malignant adrenal tumor: A retrospective study of six cases and literature review
Xiangzhi Ni, Jing Wang, Jiashi Cao, Kun Zhang, Shuming Hou, Xing Huang, Yuanjin Song, Xin Gao, Jianru Xiao, Tielong Liu
Frontiers in Oncology.2023;[Epub] CrossRef
2023 Korean Endocrine Society Consensus Guidelines for the Diagnosis and Management of Primary Aldosteronism
Jeonghoon Ha, Jung Hwan Park, Kyoung Jin Kim, Jung Hee Kim, Kyong Yeun Jung, Jeongmin Lee, Jong Han Choi, Seung Hun Lee, Namki Hong, Jung Soo Lim, Byung Kwan Park, Jung-Han Kim, Kyeong Cheon Jung, Jooyoung Cho, Mi-kyung Kim, Choon Hee Chung
Endocrinology and Metabolism.2023; 38(6): 597. CrossRef

Hypothalamus and Pituitary gland
Epidemiology of Functioning Pituitary Adenomas: Sang Ouk Chin; Endocrinol Metab. 2020;35(2):237-242. Published online June 24, 2020; DOI: https://doi.org/10.3803/EnM.2020.35.2.237

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Pituitary adenomas (PAs) are defined as benign monoclonal tumors in the pituitary gland that cause symptoms due to either hormonal hypersecretion or a space-occupying effect, and are classified as functioning or non-functioning. Because of their rarity and slow-growing with symptomless nature in most cases, it has been challenging to investigate the epidemiology of PAs. Considering their public health impact and association with increased morbidity and mortality, however, it is essential to understand the prevalence and incidence of PAs in order to improve patient outcomes and to minimize the resultant burden on the health care system. Fortunately, developments in imaging modalities and easier access to large-scale population data have enabled investigators to analyze the epidemiology of PAs more accurately. This review summarizes previously reported epidemiologic data on functioning PAs in Korea and other countries.

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Spherical type of amyloidogenic pituitary prolactinoma in a 50 year old male
Madhala Divya, Balasubramanian Archana, Lawrence D Cruze, D. Balasubramanian
Interdisciplinary Neurosurgery.2024; 36: 101957. CrossRef
Transcriptome of GH-producing pituitary neuroendocrine tumours and models are significantly affected by somatostatin analogues
Rihards Saksis, Olesja Rogoza, Helvijs Niedra, Kaspars Megnis, Ilona Mandrika, Inga Balcere, Liva Steina, Janis Stukens, Austra Breiksa, Jurijs Nazarovs, Jelizaveta Sokolovska, Ilze Konrade, Raitis Peculis, Vita Rovite
Cancer Cell International.2023;[Epub] CrossRef
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Roxana-Ioana Dumitriu-Stan, Iulia-Florentina Burcea, Teodor Salmen, Catalina Poiana
Diagnostics.2023; 13(12): 2118. CrossRef
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Surgery is a safe, effective first-line treatment modality for noninvasive prolactinomas
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Hypothalamus and Pituitary gland
Precision Therapy in Acromegaly Caused by Pituitary Tumors: How Close Is It to Reality?: Cheol Ryong Ku, Vladimir Melnikov, Zhaoyun Zhang, Eun Jig Lee; Endocrinol Metab. 2020;35(2):206-216. Published online June 24, 2020; DOI: https://doi.org/10.3803/EnM.2020.35.2.206

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Acromegaly presents with an enigmatic range of symptoms and comorbidities caused by chronic and progressive growth hormone elevations, commonly due to endocrinologic hypersecretion from a pituitary gland tumor. Comprehensive national acromegaly databases have been appearing over the years, allowing for international comparisons of data, although still presenting varying prevalence and incidence rates. Lack of large-scale analysis in geographical and ethnic differences in clinical presentation and management requires further research. Assessment of current and novel predictors of responsiveness to distinct therapy can lead to multilevel categorization of patients, allowing integration into new clinical guidelines and reduction of increased morbidity and mortality associated with acromegaly. This review compares current data from epidemiological studies and assesses the present-day application of prognostic factors in medical practice, the reality of precision therapy, as well as its future prospects in acromegaly, with a special focus on its relevance to the South Korean population.

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Biomarkers of response to treatment in acromegaly
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Multiomics Approach to Acromegaly: Unveiling Translational Insights for Precision Medicine
Kyungwon Kim, Cheol Ryong Ku, Eun Jig Lee
Endocrinology and Metabolism.2023; 38(5): 463. CrossRef
Risk of depression in patients with acromegaly in Korea (2006-2016): a nationwide population-based study
Shinje Moon, Sangmo Hong, Kyungdo Han, Cheol-Young Park
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The Future of Somatostatin Receptor Ligands in Acromegaly
Monica R Gadelha, Luiz Eduardo Wildemberg, Leandro Kasuki
The Journal of Clinical Endocrinology & Metabolism.2022; 107(2): 297. CrossRef
Innovative therapeutics in acromegaly
Leandro Kasuki, Mônica R. Gadelha
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Machine Learning-based Prediction Model for Treatment of Acromegaly With First-generation Somatostatin Receptor Ligands
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The Journal of Clinical Endocrinology & Metabolism.2021; 106(7): 2047. CrossRef
Skin anomalies in acromegalic patients (Review of the practical aspects)
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Original Articles

Endocrine Research
Therapeutic Effect of a Novel Chimeric Molecule Targeting Both Somatostatin and Dopamine Receptors on Growth Hormone-Secreting Pituitary Adenomas: Jean Kim, Ju Hun Oh, Heather Harlem, Michael D. Culler, Cheol Ryong Ku, Eun Jig Lee; Endocrinol Metab. 2020;35(1):177-187. Published online March 19, 2020; DOI: https://doi.org/10.3803/EnM.2020.35.1.177

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Background

Acromegaly is a rare disease primarily caused by growth hormone (GH)-secreting pituitary adenomas, and its treatment is costly. Moreover, some patients are unresponsive to treatment. Hence, there are increasing efforts to develop new drugs with improved effectiveness for this disease. BIM23B065 is a novel chimeric molecule that acts on both somatostatin and dopamine receptors. This study aimed to investigate the effects of BIM23B065 compared with those of a somatostatin receptor analog and a dopamine agonist.

Methods

The effects of BIM23B065 on the proliferation, GH and insulin-like growth factor-1 (IGF-1) levels, and extracellular signal-regulated kinase (ERK) 1/2 and cyclic AMP response element binding (CREB) phosphorylation of GH3 cells were investigated with MTS assay, enzyme-linked immunosorbent assay, and Western blotting, respectively. The dosage and treatment duration of BIM23B065 were tested in animal models of GH-secreting pituitary adenoma. The effect of BIM23B065 (3 mg/kg/day) on changes in IGF-1 levels before and after treatment was further investigated.

Results

In vitro, BIM23B065 treatment decreased GH release in the culture media and downregulated ERK 1/2 and CREB phosphorylation to 22% and 26%, respectively. In vivo, IGF-1 expression decreased to 50 % after 4 weeks of treatment with BIM23B065 using an osmotic pump implant. Moreover, magnetic resonance imaging results showed that the tumor size decreased significantly following treatment with BIM23B065 for 4 weeks.

Conclusion

The novel chimeric molecule was effective in decreasing IGF-1 and GH levels and may serve as an effective therapeutic agent for acromegaly.

Citations

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Pituitary Tumorigenesis—Implications for Management
Rodanthi Vamvoukaki, Maria Chrysoulaki, Grigoria Betsi, Paraskevi Xekouki
Medicina.2023; 59(4): 812. CrossRef
Current and Emerging Medical Therapies in Pituitary Tumors
Nicolas Sahakian, Frédéric Castinetti, Thierry Brue, Thomas Cuny
Journal of Clinical Medicine.2022; 11(4): 955. CrossRef
Characterization of the ability of a, second-generation SST-DA chimeric molecule, TBR-065, to suppress GH secretion from human GH-secreting adenoma cells
Thomas Cuny, Thomas Graillon, Célines Defilles, Rakesh Datta, Shengwen Zhang, Dominique Figarella-Branger, Henry Dufour, Grégory Mougel, Thierry Brue, Tanya Landsman, Heather A. Halem, Michael D. Culler, Anne Barlier, Alexandru Saveanu
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Efficacy of a Novel Second-Generation Somatostatin-Dopamine Chimera (TBR-065) in Human Medullary Thyroid Cancer: A Preclinical Study
Alessandra Dicitore, Maria Celeste Cantone, Germano Gaudenzi, Davide Saronni, Silvia Carra, Maria Orietta Borghi, Manuela Albertelli, Diego Ferone, Leo J. Hofland, Luca Persani, Giovanni Vitale
Neuroendocrinology.2021; 111(10): 937. CrossRef
Emerging drugs for the treatment of acromegaly
Claudia Campana, Giuliana Corica, Federica Nista, Francesco Cocchiara, Giulia Graziani, Keyvan Khorrami, Marta Franco, Mara Boschetti, Diego Ferone, Federico Gatto
Expert Opinion on Emerging Drugs.2020; 25(4): 409. CrossRef

Endocrine Research
Transcriptome Analysis Identifies an Attenuated Local Immune Response in Invasive Nonfunctioning Pituitary Adenomas: Yong Hwy Kim, Jung Hee Kim; Endocrinol Metab. 2019;34(3):314-322. Published online September 26, 2019; DOI: https://doi.org/10.3803/EnM.2019.34.3.314; Correction in: Endocrinol Metab 2020;35(4):965

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Background

Invasive nonfunctioning pituitary adenomas (NFPAs) remain challenging due to their high complication rate and poor prognosis. We aimed to identify the distinctive molecular signatures of invasive NFPAs, compared with noninvasive NFPAs, using gene expression profiling by RNA sequencing.

Methods

We obtained frozen fresh tissue samples from 14 patients with NFPAs who underwent primary transsphenoidal surgery. Three non-invasive and 11 invasive NFPAs were used for RNA sequencing. The bioinformatics analysis included differential gene expression, gene ontology analysis, and pathway analysis.

Results

A total of 700 genes were differentially expressed (59 up-regulated and 641 down-regulated genes) between invasive and non-invasive NFPAs (false discovery rate <0.1, and |fold change| ≥2). Using the down-regulated genes in invasive NFPAs, gene ontology enrichment analyses and pathway analyses demonstrated that the local immune response was attenuated and that transforming growth factor-β (TGF-β) RII-initiated TGF-β signaling was down-regulated in invasive NFPAs. The overexpression of claudin-9 (CLDN9) and the down-regulation of insulin-like growth factor-binding protein 5 (IGFBP5), death-associated protein kinase 1 (DAPK1), and tissue inhibitor of metalloproteinase-3 (TIMP3) may be related with invasiveness in NFPAs.

Conclusion

Invasive NFPAs harbor different gene expression profiles relative to noninvasive NFPAs. In particular, local suppression of the immune response and TGF-β signaling can make PAs prone to invasiveness.

Citations

Citations to this article as recorded by

Transcriptome of GH-producing pituitary neuroendocrine tumours and models are significantly affected by somatostatin analogues
Rihards Saksis, Olesja Rogoza, Helvijs Niedra, Kaspars Megnis, Ilona Mandrika, Inga Balcere, Liva Steina, Janis Stukens, Austra Breiksa, Jurijs Nazarovs, Jelizaveta Sokolovska, Ilze Konrade, Raitis Peculis, Vita Rovite
Cancer Cell International.2023;[Epub] CrossRef
PD-L1 Expression in Pituitary Neuroendocrine Tumors/Pituitary Adenomas
Giulia Cossu, Stefano La Rosa, Jean Philippe Brouland, Nelly Pitteloud, Ethan Harel, Federico Santoni, Maxime Brunner, Roy Thomas Daniel, Mahmoud Messerer
Cancers.2023; 15(18): 4471. CrossRef
Aggressive PitNETs and Potential Target Therapies: A Systematic Review of Molecular and Genetic Pathways
Simona Serioli, Ludovico Agostini, Alberto Pietrantoni, Federico Valeri, Flavia Costanza, Sabrina Chiloiro, Barbara Buffoli, Amedeo Piazza, Pietro Luigi Poliani, Maria Peris-Celda, Federica Iavarone, Simona Gaudino, Marco Gessi, Giovanni Schinzari, Pier P
International Journal of Molecular Sciences.2023; 24(21): 15719. CrossRef
Muti-omics integration analysis revealed molecular network alterations in human nonfunctional pituitary neuroendocrine tumors in the framework of 3P medicine
Siqi Wen, Chunling Li, Xianquan Zhan
EPMA Journal.2022; 13(1): 9. CrossRef
A systematic review of molecular alterations in invasive non-functioning pituitary adenoma
Nazanin Hosseinkhan, Maryam Honardoost, Zahra Emami, Sara Cheraghi, Nahid Hashemi-Madani, Mohammad E. Khamseh
Endocrine.2022; 77(3): 500. CrossRef
Medication for Acromegaly Reduces Expression of MUC16, MACC1 and GRHL2 in Pituitary Neuroendocrine Tumour Tissue
Rihards Saksis, Ivars Silamikelis, Pola Laksa, Kaspars Megnis, Raitis Peculis, Ilona Mandrika, Olesja Rogoza, Ramona Petrovska, Inga Balcere, Ilze Konrade, Liva Steina, Janis Stukens, Austra Breiksa, Jurijs Nazarovs, Jelizaveta Sokolovska, Valdis Pirags,
Frontiers in Oncology.2021;[Epub] CrossRef
Large Scale Molecular Studies of Pituitary Neuroendocrine Tumors: Novel Markers, Mechanisms and Translational Perspectives
Raitis Peculis, Helvijs Niedra, Vita Rovite
Cancers.2021; 13(6): 1395. CrossRef
Nkx3-1 and Fech genes might be switch genes involved in pituitary non-functioning adenoma invasiveness
Nasibeh Khayer, Maryam Jalessi, Amin Jahanbakhshi, Alireza Tabib khooei, Mehdi Mirzaie
Scientific Reports.2021;[Epub] CrossRef
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Pedro Marques, Ashley B. Grossman, Márta Korbonits
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Congxin Dai, Siyu Liang, Bowen Sun, Jun Kang
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Bone Metabolism
Testosterone Replacement and Bone Mineral Density in Male Pituitary Tumor Patients: Min Jeong Lee, Hyoung Kyu Ryu, So-Yeon An, Ja Young Jeon, Ji In Lee, Yoon-Sok Chung; Endocrinol Metab. 2014;29(1):48-53. Published online March 14, 2014; DOI: https://doi.org/10.3803/EnM.2014.29.1.48

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Background

Hypopituitarism is associated with osteoporosis and osteopenia especially when hypogonadotropic hypogonadism is present. Despite hypopituitarism being an important cause of secondary osteoporosis, osteoporosis in patients receiving surgery for pituitary tumors in Korea has not been studied. In this study, we evaluated the effects of testosterone replacement therapy (TRT) on bone mineral density (BMD) in postoperative hypogonadal patients with pituitary tumors.

Methods

To examine the effect of TRT on BMD, we performed a retrospective observational study in 21 postoperative male patients who underwent pituitary tumor surgery between 2003 and 2012 at the Ajou University Hospital. Testosterone was replaced in postoperative hypogonadal patients by regular intramuscular injection, daily oral medication, or application of transdermal gel. BMD (g/cm²) measurements of central skeletal sites (lumbar spine, femoral neck, and total femur) were obtained using dual-energy X-ray absorptiometry (GE Lunar). For lumbar spine BMD, L1 to L4 values were chosen for analysis. Femur neck and total femur were also analyzed.

Results

During the follow-up period (mean, 56 months; range, 12 to 99 months) serum testosterone levels increased with the administration of TRT (P=0.007). There was significant improvement (4.56%±9.81%) in the lumbar spine BMD compared to baseline BMD. There were no significant changes in the femur neck BMD or total femur BMD. We did not find any statistically significant relationships between changes in testosterone levels and BMD using Spearman correlation analysis.

Conclusion

Our results indicated that TRT used in the postoperative period for hypogonadal pituitary tumor surgery patients may have beneficial effects on the BMD of the spine.

Citations

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Abdulmaged M. Traish
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Michael S. Irwig
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Review Articles

Adrenal gland
The Molecular Pathogenesis of Pituitary Adenomas: An Update: Xiaobing Jiang, Xun Zhang; Endocrinol Metab. 2013;28(4):245-254. Published online December 12, 2013; DOI: https://doi.org/10.3803/EnM.2013.28.4.245

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Pituitary tumors represent the most common intracranial neoplasms accompanying serious morbidity through mass effects and inappropriate secretion of pituitary hormones. Understanding the etiology of pituitary tumorigenesis will facilitate the development of satisfactory treatment for pituitary adenomas. Although the pathogenesis of pituitary adenomas is largely unknown, considerable evidence indicates that the pituitary tumorigenesis is a complex process involving multiple factors, including genetic and epigenetic changes. This review summarized the recent progress in the study of pituitary tumorigenesis, focusing on the role of tumor suppressor genes, oncogenes and microRNAs.

Citations

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Sellar Tumors
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Quantitative Analysis of Proteome in Non-functional Pituitary Adenomas: Clinical Relevance and Potential Benefits for the Patients
Tingting Cheng, Ya Wang, Miaolong Lu, Xiaohan Zhan, Tian Zhou, Biao Li, Xianquan Zhan
Frontiers in Endocrinology.2019;[Epub] CrossRef
circOMA1-Mediated miR-145-5p Suppresses Tumor Growth of Nonfunctioning Pituitary Adenomas by Targeting TPT1
Qiu Du, Bin Hu, Yajuan Feng, Zongming Wang, Xin Wang, Dimin Zhu, Yonghong Zhu, Xiaobing Jiang, Haijun Wang
The Journal of Clinical Endocrinology & Metabolism.2019; 104(6): 2419. CrossRef
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Next-generation sequencing of microRNAs reveals a unique expression pattern in different types of pituitary adenomas
Zongze He, Longyi Chen, Xiao Hu, Jian Tang, Linfu He, Junting Hu, Fan Fei, Qi Wang
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Growth hormone and prolactin-staining tumors causing acromegaly: a retrospective review of clinical presentations and surgical outcomes
Jonathan Rick, Arman Jahangiri, Patrick M. Flanigan, Ankush Chandra, Sandeep Kunwar, Lewis Blevins, Manish K. Aghi
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Study of major genetic factors involved in pituitary tumorigenesis and their impact on clinical and biological characteristics of sporadic somatotropinomas and non-functioning pituitary adenomas
R.K. Foltran, P.V.G.H. Amorim, F.H. Duarte, I.P.P. Grande, A.C.T.B. Freire, F.P. Frassetto, J.B. Dettoni, V.A. Alves, I. Castro, E.B. Trarbach, M.D. Bronstein, R.S. Jallad
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Detection of circulating tumor cells in patients with pituitary tumors
Gao Hua, He Yanjiao, Liu Qian, Wang Jichao, Zhang Yazhuo
BMC Cancer.2018;[Epub] CrossRef
Plurihormonal ACTH-GH Pituitary Adenoma: Case Report and Systematic Literature Review
Elena Roca, Pier Paolo Mattogno, Teresa Porcelli, Luigi Poliani, Francesco Belotti, Alberto Schreiber, Filippo Maffezzoni, Marco Maria Fontanella, Francesco Doglietto
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Bo Diao, Ying Liu, Guo‑Zheng Xu, Yi Zhang, Jun Xie, Jie Gong
Oncology Letters.2018;[Epub] CrossRef
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Melanie Sapochnik, Mariana Fuertes, Eduardo Arzt
Journal of Molecular Endocrinology.2017; 58(4): R241. CrossRef
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Aydin Sav, Fabio Rotondo, Luis V. Syro, Meric A. Altinoz, Kalman Kovacs
Expert Review of Endocrinology & Metabolism.2017; 12(3): 177. CrossRef
MicroRNA-200b inhibits pituitary tumor cell proliferation and invasion by targeting PKCα
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Aydin Sav, Fabio Rotondo, Luis V. Syro, Antonio Di Ieva, Michael D. Cusimano, Kalman Kovacs
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MicroRNA-106b promotes pituitary tumor cell proliferation and invasion through PI3K/AKT signaling pathway by targeting PTEN
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Samuel A. Wells
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Debebe Theodros, Mira Patel, Jacob Ruzevick, Michael Lim, Chetan Bettegowda
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Adrenal gland
Characteristics of Acromegaly in Korea with a Literature Review: Jae Won Hong, Cheol Ryong Ku, Sun Ho Kim, Eun Jig Lee; Endocrinol Metab. 2013;28(3):164-168. Published online September 13, 2013; DOI: https://doi.org/10.3803/EnM.2013.28.3.164

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Abstract PDF PubReader

Acromegaly is a slowly progressive disease caused by excessive growth hormone (GH), which is related to a GH secreting pituitary tumor in most cases. Herein, we describe the epidemiology, clinical characteristics, and treatment of acromegaly in Korea with a literature review. The average annual incidence of acromegaly in Korea was 3.9 cases per million people, which was within the range of previous Western studies. The primary treatment for acromegaly was also transsphenoidal adenomectomy, which accounted for 90.4% of patients whose primary therapeutic options were known. The overall surgical remission rates were 89%, 87%, 64%, 70%, and 50% for modified Hardy classification I, II, IIIA, IIIB, and IV, respectively. An updated and larger study regarding the treatment outcome of medical/radiotherapy in Korean acromegalic patients is needed.

Citations

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