PituitaryPub Date : 2024-10-01Epub Date: 2024-08-09DOI: 10.1007/s11102-024-01440-w
Matej Rakusa, Andrej Janez, Mojca Jensterle
{"title":"Somapacitan-induced reversible lipoatrophy in an adult woman with hypopituitarism.","authors":"Matej Rakusa, Andrej Janez, Mojca Jensterle","doi":"10.1007/s11102-024-01440-w","DOIUrl":"10.1007/s11102-024-01440-w","url":null,"abstract":"<p><strong>Background: </strong>Lipoatrophy is rare adverse event (AE) in daily recombinant human growth hormone (rhGH). Data on lipoatrophy in newly developed long-acting GH (LAGH) are scarce. We report the first case of lipoatrophy in adult patient treated with LAGH somapacitan.</p><p><strong>Case presentation: </strong>A 38-year-old woman with congenital panhypopituitarism was transitioned from daily rhGH 0.4 mg QD to somapacitan dose 4 mg QW due to non-adherence to daily rhGH. Despite adequate education and regular changing of injection sites, the patient reported reduced subcutaneous tissue at all four injection sites, after the 4th application of somapacitan. Somapacitan was discontinued at patient preference and lipoatrophy completely reversed after 3 months.</p><p><strong>Conclusions: </strong>Lipoatrophy caused by somapacitan was completely reversible. We speculate that high initial dose and volume of somapacitan caused delayed diffusion and a direct local lipolytic effect in our patient. Although, titration of somapacitan was initiated as previously reported in REAL2 study protocol, recent clinical guidelines advise more gradual increase of somapacitan dose also in women on oral estogens that are switched from daily rhGH. Importantly, our case and the two previously described cases in children in the REAL 3 study showed that lipoatrophy caused by somapacitan was transient and completely reversible, and that discontinuation of the drug is not always mandatory.</p>","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513695/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141907463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PituitaryPub Date : 2024-10-01Epub Date: 2024-07-05DOI: 10.1007/s11102-024-01422-y
Federico Gatto, Angelo Milioto, Giuliana Corica, Federica Nista, Claudia Campana, Anna Arecco, Lorenzo Mattioli, Lorenzo Belluscio, Bianca Bignotti, Diego Ferone, Alberto Stefano Tagliafico
{"title":"Temporal and masseter muscle evaluation by MRI provides information on muscle mass and quality in acromegaly patients.","authors":"Federico Gatto, Angelo Milioto, Giuliana Corica, Federica Nista, Claudia Campana, Anna Arecco, Lorenzo Mattioli, Lorenzo Belluscio, Bianca Bignotti, Diego Ferone, Alberto Stefano Tagliafico","doi":"10.1007/s11102-024-01422-y","DOIUrl":"10.1007/s11102-024-01422-y","url":null,"abstract":"<p><strong>Purpose: </strong>The impact of GH/IGF-1 levels on skeletal muscle in acromegaly is still controversial. Temporal (TMT) and masseter muscle (MMT) thickness has been recently demonstrated as a reliable measure of muscle mass. We aimed to investigate the relationship between TMT, MMT and clinical/biochemical characteristics in patients with acromegaly.</p><p><strong>Methods: </strong>Single center retrospective longitudinal study including 69 patients with at least one available brain/sella turcica MRI and matched clinical data. TMT, MMT, and muscle fatty infiltration (modified Goutallier score) were evaluated in all patients at baseline (first available MRI) and over time (182 MRIs analyzed).</p><p><strong>Results: </strong>At baseline, both TMT and MMT were higher in males than females (p = 0.001 and p = 0.016, respectively). TMT and MMT were positively associated (β 0.508, p < 0.001), and they were positively correlated with IGF-1 xULN (TMT, p = 0.047; MMT, p = 0.001). MMT had a positive correlation with patients' weight (p = 0.015) and height (p = 0.006). No correlation was found between TMT, MMT and the presence of hypogonadism. Considering all available MRIs, sex and IGF-1 xULN were significant determinants of TMT and MMT at multivariable analysis (female sex: β -0.345/-0.426, p < 0.001; IGF-1 xULN: β 0.257/0.328, p < 0.001). At longitudinal evaluation, uncontrolled patients at baseline showed a significant reduction of MMT over time (p = 0.044). Remarkable fatty infiltration was observed in 34-37% of MRIs; age was the main determinant (temporal muscle: OR 1.665; p = 0.013; masseter muscle: OR 1.793; p = 0.009).</p><p><strong>Conclusion: </strong>Male patients with higher IGF-1 values have thicker temporal and masseter muscles, suggesting that sex and IGF-1 have a significant impact on muscle mass in acromegaly.</p>","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513697/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141535080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PituitaryPub Date : 2024-10-01Epub Date: 2024-08-19DOI: 10.1007/s11102-024-01444-6
Serdar Sahin, Aycan Gundogdu, Ufuk Nalbantoglu, Zuleyha Karaca, Aysa Hacioglu, Muhammed Emre Urhan, Kursad Unluhizarci, Mehmet Hora, Elif Seren Tanrıverdi, Emre Durcan, Gülsah Elbüken, Hatice Sebile Dokmetas, Sayid Shafi Zuhur, Necmettin Tanriover, Ugur Türe, Fahrettin Kelestimur, Pinar Kadioglu
{"title":"The comprehensive evaluation of oral and fecal microbiota in patients with acromegaly.","authors":"Serdar Sahin, Aycan Gundogdu, Ufuk Nalbantoglu, Zuleyha Karaca, Aysa Hacioglu, Muhammed Emre Urhan, Kursad Unluhizarci, Mehmet Hora, Elif Seren Tanrıverdi, Emre Durcan, Gülsah Elbüken, Hatice Sebile Dokmetas, Sayid Shafi Zuhur, Necmettin Tanriover, Ugur Türe, Fahrettin Kelestimur, Pinar Kadioglu","doi":"10.1007/s11102-024-01444-6","DOIUrl":"10.1007/s11102-024-01444-6","url":null,"abstract":"<p><strong>Purpose: </strong>The alteration of the microbiota in the mouth and gut could potentially play a role in the pathogenesis of various diseases, and conversely, these diseases may have an influence on the composition of the gut microbiota. Acromegaly disease can potentially affect physiological processes in the mouth and gut. The present study was designed to investigate the relationship between acromegaly and the oral and gut microbiota, as data on this topic are scarce.</p><p><strong>Methods: </strong>This was a multicenter, cross-sectional study. Our study included individuals diagnosed with acromegaly (who were treated and followed up, and also as an another group of patients with newly diagnosed acromegaly) and healthy participants. All three groups were assessed and compared based on age, sex, serum IGF-1, body mass index BMI as well as their stool and oral microbiota We collected demographic information from the patients, collected fecal and oral samples, performed DNA isolation followed by 16 S rRNA sequencing, and then performed bioinformatic analysis. We also analyzed the oral and fecal samples with respect to medical and surgical treatment and disease control status, specific treatments received for acromegaly, presence of comorbidities, hypopituitarism status, presence of intestinal polyps.</p><p><strong>Results: </strong>One hundred and three patients with acromegaly, 15 newly diagnosed patients with acromegaly without comorbidities and 34 healthy controls were included in the study. The Firmicutes/Bacteroidetes ratio was significantly lower in patients with acromegaly who received treatment (medical and/or surgical) than in healthy controls. In addition, a significant difference was found in the fecal and oral microbiota of patients with acromegaly with disease control compared to healthy controls. Furthermore, a significant difference was found in the fecal and oral microbiota of patients with acromegaly without disease control. Nevertheless, it was not possible to establish a clear relationship between disease control status, the presence of intestinal polyps, the presence of type 2 diabetes and the composition of the oral and gut microbiota in acromegalic patients who had received different forms of treatment.</p><p><strong>Conclusion: </strong>Patients with acromegaly show distinct gut microbiota profiles, and it is evident that factors beyond the GH/IGF-1 axis play a role in shaping the gut microbiota of individuals with acromegaly.</p>","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142000591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PituitaryPub Date : 2024-10-01Epub Date: 2024-09-25DOI: 10.1007/s11102-024-01460-6
Anna Lena Friedel, Lisa Schock, Sonja Siegel, Angelika Hiroko Fritz, Nicole Unger, Birgit Harbeck, Philipp Dammann, Ilonka Kreitschmann-Andermahr
{"title":"Shared decision-making and detection of comorbidities in an online acromegaly consultation with and without the Acromegaly Disease Activity Tool ACRODAT<sup>®</sup> using the simulated person approach.","authors":"Anna Lena Friedel, Lisa Schock, Sonja Siegel, Angelika Hiroko Fritz, Nicole Unger, Birgit Harbeck, Philipp Dammann, Ilonka Kreitschmann-Andermahr","doi":"10.1007/s11102-024-01460-6","DOIUrl":"10.1007/s11102-024-01460-6","url":null,"abstract":"<p><strong>Objective: </strong>A patient-centered approach to the management of acromegaly includes disease activity control, shared decision-making and identification of comorbidities. The Acromegaly Disease Activity Tool (ACRODAT<sup>®</sup>) is intended to assist physicians in providing such holistic management. The present study investigated this claim using the simulated person (SP) approach.</p><p><strong>Methods: </strong>We studied patient-doctor interaction via online video consultation in a randomized prospective study design with SPs trained to simulate a specific acromegaly profile. We analyzed the proportion of conversation time devoted to health content and the specific acromegaly and comorbidity relevant categories mentioned in the conversation. We collected physicians' feedback on the usefulness of ACRODAT<sup>®</sup>, SPs subjective perception of the quality of the conversation and compared consultations with and without ACRODAT<sup>®</sup> using a qualitative approach.</p><p><strong>Results: </strong>The sample (N = 30) consisted of endocrinologists treating patients with acromegaly in Germany. For SP-physician interactions (N = 60), the proportion of time spent on conversation content (e.g. IGF-I, quality of life) was distributed according to the focus of the patient profile. Comorbidities were less well identified than the need for a change in therapy. Only 18.3% of the SPs were actively asked to participate in the decision-making process. ACRODAT<sup>®</sup> did not lead to any significant differences in the course of the discussion.</p><p><strong>Conclusions: </strong>Shared decision-making was underrepresented in this SP-physician interaction in acromegaly management. Physicians adapted the content of the discussion to the SP's needs, but did not adequately address comorbidities. According to the analysis criteria used, ACRODAT<sup>®</sup> did not contribute to a more holistic patient management in the present study.</p>","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513722/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142352520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PituitaryPub Date : 2024-10-01DOI: 10.1007/s11102-024-01455-3
Sofia Llahana, Kevin C J Yuen
{"title":"Correction: Development and validation of a novel treatment adherence, satisfaction and knowledge questionnaire (TASK-Q) for adult patients with hypothalamic-pituitary disorders.","authors":"Sofia Llahana, Kevin C J Yuen","doi":"10.1007/s11102-024-01455-3","DOIUrl":"10.1007/s11102-024-01455-3","url":null,"abstract":"","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513739/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142472858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PituitaryPub Date : 2024-10-01Epub Date: 2024-06-19DOI: 10.1007/s11102-024-01414-y
Yeo Song Kim, Stephen Ahn, Youn-Soo Lee, Sin-Soo Jeun, Jae-Sung Park
{"title":"Clinicopathological analysis of non-functioning pituitary adenomas (PAs) according to the 2022 WHO classification.","authors":"Yeo Song Kim, Stephen Ahn, Youn-Soo Lee, Sin-Soo Jeun, Jae-Sung Park","doi":"10.1007/s11102-024-01414-y","DOIUrl":"10.1007/s11102-024-01414-y","url":null,"abstract":"<p><strong>Purpose: </strong>For asymptomatic non-functioning pituitary adenomas (NFPAs), conservative approaches such as observation are preferred. However, some NFPAs exhibit poor prognoses. Thus, the purpose of this study was to investigate clinicopathological characteristics of tumors for identifying those with unfavorable prognoses.</p><p><strong>Methods: </strong>A total of 125 patients with NFPAs who underwent surgery between November 2017 and December 2022 at our institution were retrospectively analyzed. Clinical, radiological, and pathological data, including hormone profiles, tumor size, presence of cavernous sinus invasion, and Ki-67 index levels, were reviewed. High-risk PAs were identified according to 2022 WHO criteria. Statistical analyses including Kaplan-Meier survival analysis and Cox regression were performed to evaluate factors associated with tumor progression or recurrence.</p><p><strong>Results: </strong>A high-risk group demonstrated a significantly higher rate of tumor progression/recurrence than a low-risk group (p-value = 0.004). In multivariate analysis, the high-risk group at the time of diagnosis remained as an independent prognostic factor for NFPAs (p-value = 0.0148). The high-risk group also had a higher percentage of younger patients (80.0% in the high-risk group vs. 62.2% in the low-risk group, p-value = 0.016) and female patients (91.4% vs. 34.4%, p< 0.001). The presence of cavernous sinus invasion and higher Ki-67 index levels were more commonly observed in the high-risk group, although these factors did not significantly impact the overall prognosis.</p><p><strong>Conclusion: </strong>Our findings indicate that patients with high-risk NFPAs have a more aggressive disease course and a higher rate of progression or recurrence. This high-risk group has higher prevalence of younger and female patients. They may benefit from closer monitoring and possibly more aggressive treatment approaches.</p>","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141420488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PituitaryPub Date : 2024-10-01Epub Date: 2024-09-19DOI: 10.1007/s11102-024-01458-0
Rosario Pivonello, Chiara Simeoli, Nicola Di Paola, Annamaria Colao
{"title":"Differential diagnosis between Cushing's syndrome and non-neoplastic hypercortisolism: are we getting there?","authors":"Rosario Pivonello, Chiara Simeoli, Nicola Di Paola, Annamaria Colao","doi":"10.1007/s11102-024-01458-0","DOIUrl":"10.1007/s11102-024-01458-0","url":null,"abstract":"","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142293602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PituitaryPub Date : 2024-10-01Epub Date: 2024-05-31DOI: 10.1007/s11102-024-01405-z
Melanie Stocker, Simona E Zimmermann, Rahel Laager, Claudia Gregoriano, Beat Mueller, Philipp Schuetz, Alexander Kutz
{"title":"Cardiovascular risk in patients with acromegaly vs. non-functioning pituitary adenoma following pituitary surgery: an active-comparator cohort study.","authors":"Melanie Stocker, Simona E Zimmermann, Rahel Laager, Claudia Gregoriano, Beat Mueller, Philipp Schuetz, Alexander Kutz","doi":"10.1007/s11102-024-01405-z","DOIUrl":"10.1007/s11102-024-01405-z","url":null,"abstract":"<p><strong>Purpose: </strong>Given the increased cardio-metabolic risk in patients with acromegaly, this study compared cardiovascular outcomes, mortality, and in-hospital outcomes between patients with acromegaly and non-functioning pituitary adenoma (NFPA) following pituitary surgery.</p><p><strong>Methods: </strong>This was a nationwide cohort study using data from hospitalized patients with acromegaly or NFPA undergoing pituitary surgery in Switzerland between January 2012 and December 2021. Using 1:3 propensity score matching, eligible acromegaly patients were paired with NFPA patients who underwent pituitary surgery, respectively. The primary outcome comprised a composite of cardiovascular events (myocardial infarction, cardiac arrest, ischemic stroke, hospitalization for heart failure, unstable angina pectoris, cardiac arrhythmias, intracranial hemorrhage, hospitalization for hypertensive crisis) and all-cause mortality. Secondary outcomes included individual components of the primary outcome, surgical re-operation, and various hospital-associated outcomes.</p><p><strong>Results: </strong>Among 231 propensity score-matched patients with acromegaly and 491 with NFPA, the incidence rate of the primary outcome was 8.18 versus 12.73 per 1,000 person-years (hazard ratio [HR], 0.64; [95% confidence interval [CI], 0.31-1.32]). Mortality rates were numerically lower in acromegaly patients (2.43 vs. 7.05 deaths per 1,000 person-years; HR, 0.34; [95% CI, 0.10-1.17]). Individual components of the primary outcome and in-hospital outcomes showed no significant differences between the groups.</p><p><strong>Conclusion: </strong>This cohort study did not find an increased risk of cardiovascular outcomes and mortality in patients with acromegaly undergoing pituitary surgery compared to surgically treated NFPA patients. These findings suggest that there is no legacy effect regarding higher cardio-metabolic risk in individuals with acromegaly once they receive surgical treatment.</p>","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141180536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PituitaryPub Date : 2024-10-01Epub Date: 2024-07-29DOI: 10.1007/s11102-024-01433-9
Saumya Susan Zacharia, Raji Thomas, Johns T Johnson, Nitin Kapoor, Saraswathi Ramanathan, Hesarghatta S Asha, Kripa Elizabeth Cherian, Thomas V Paul
{"title":"Neuroendocrine challenges and clinical outcomes in men with chronic traumatic brain injury: a cross-sectional study.","authors":"Saumya Susan Zacharia, Raji Thomas, Johns T Johnson, Nitin Kapoor, Saraswathi Ramanathan, Hesarghatta S Asha, Kripa Elizabeth Cherian, Thomas V Paul","doi":"10.1007/s11102-024-01433-9","DOIUrl":"10.1007/s11102-024-01433-9","url":null,"abstract":"<p><strong>Background and objectives: </strong>Marked changes in the hypothalamic-pituitary axis have been documented in patients with traumatic brain injury (TBI). These enduring endocrine challenges could significantly influence the physical and psychological outcomes thereby impacting overall recovery. This study aimed to determine the prevalence and types of endocrine dysfunction in men with chronic TBI and to determine the association of endocrine dysfunction with clinical outcomes.</p><p><strong>Methodology: </strong>A cross-sectional study that included male participants of 25-45 years (N = 66) with moderate to severe TBI within 6-24 months of injury. Serum Cortisol, Free T4, TSH, Luteinizing hormone, Testosterone, ACTH, Prolactin and IGF-1 were assessed. Glasgow Outcome Scale Extended (GOS-E) and Modified Barthel Index (MBI) scores were also assessed in them.</p><p><strong>Results: </strong>The study cohort comprised male patients with a mean ± age of 32.8 ± 5.7 years. Low IGF-1 levels were most commonly encountered, followed by hypogonadism. Hypopituitarism was present in 56.1%. The proportion of hypogonadism was significantly higher in the group with moderate-total dependence (13/26) as compared to the functionally independent (8/40) group (50% vs. 20%; P = 0.011). Univariate and multivariate logistic regression analysis was used to determine the factors associated with hypopituitarism, revealing that severity of injury (OR = 2.6;) and GOS-E (OR = 3.1) were significant (P < 0.10) on univariate analysis.</p><p><strong>Conclusions: </strong>This study emphasizes the need to screen TBI patients for neuroendocrine dysfunction during the chronic phases and to establish screening criteria.</p>","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141788861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Growth hormone increase by luteinizing hormone-releasing hormone reflects gonadotroph-related characteristics in acromegaly.","authors":"Yuto Mitsui, Kosuke Mukai, Michio Otsuki, Satoru Oshino, Youichi Saitoh, Masaharu Kohara, Eiichi Morii, Atsunori Fukuhara, Iichiro Shimomura","doi":"10.1007/s11102-024-01410-2","DOIUrl":"10.1007/s11102-024-01410-2","url":null,"abstract":"<p><strong>Purpose: </strong>We previously showed the clinical characteristics of acromegaly with a paradoxical growth hormone (GH) response to oral glucose or thyrotropin-releasing hormone. However, the clinical characteristics of acromegaly with an increased GH response to luteinizing hormone-releasing hormone (LHRH responders) remain unclear. The aim of the present study was to evaluate the clinical characteristics, especially gonadotroph-related characteristics of LHRH responders in acromegaly.</p><p><strong>Methods: </strong>The clinical characteristics of 33 LHRH responders and 81 LHRH nonresponders were compared.</p><p><strong>Results: </strong>No differences in age, sex or basal serum levels of GH, insulin-like growth factor-1 (IGF-1), and gonadotropin were observed between the two groups. Steroidogenic factor 1 (SF-1), gonadotropin-releasing hormone receptor (GnRHR), and LH expression was more frequently observed in LHRH responders (P < 0.05). In addition, a greater increased rate of GH after LHRH loading, and the proportion of GnRHR and gonadotropin expression was observed in pituitary tumor with SF-1 expression than that without the expression (P < 0.01). LHRH responders showed a greater GH decrease in the octreotide test and a greater IGF-1 decrease after first-generation somatostatin ligand than LHRH nonresponders (P < 0.05). Furthermore, the proportion of hypointense pituitary tumors on T2-weighted magnetic resonance imaging and tumors with densely granulated type was higher in LHRH responders than in LHRH nonresponders, respectively (P < 0.05). No difference between the two groups was observed in either somatostatin receptor 2 or 5 expression.</p><p><strong>Conclusions: </strong>The increased GH response to LHRH is associated with the gonadotroph-related characteristics. This response may reflect the biological characteristics of somatotroph tumors.</p>","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513710/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141493101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}