PituitaryPub Date : 2024-10-01Epub Date: 2024-08-01DOI: 10.1007/s11102-024-01426-8
Erlend Gjersdal, Liva Bundgaard Larsen, Kåre Schmidt Ettrup, Peter Vestergaard, Eigil Husted Nielsen, Jesper Scott Karmisholt, Hermann L Müller, Jakob Dal
{"title":"Semaglutide as a promising treatment for hypothalamic obesity: a six-month case series on four females with craniopharyngioma.","authors":"Erlend Gjersdal, Liva Bundgaard Larsen, Kåre Schmidt Ettrup, Peter Vestergaard, Eigil Husted Nielsen, Jesper Scott Karmisholt, Hermann L Müller, Jakob Dal","doi":"10.1007/s11102-024-01426-8","DOIUrl":"10.1007/s11102-024-01426-8","url":null,"abstract":"<p><strong>Purpose: </strong>Patients with hypothalamic pathology often develop hypothalamic obesity, causing severe metabolic alterations resulting in increased morbidity and mortality. Treatments for hypothalamic obesity have not proven very effective, although the glucagon-like peptide-1 receptor agonist semaglutide has been shown to have positive effects. We examined semaglutide's effect on weight loss in a sample of patients with hypothalamic obesity.</p><p><strong>Methods: </strong>Four female patients with hypothalamic obesity resulting from treatment of craniopharyngiomas were treated with semaglutide for six months. Whole Body Dual-energy x-ray absorptiometry scans were performed, and blood samples drawn at baseline and after six months. Semaglutide dosages were increased monthly along with tracking of body weight and eating behavior (Three Factor Eating Questionnaire, TFEQ-R18).</p><p><strong>Results: </strong>BMI was reduced in all cases, with an average of 7.9 BMI (range: 6.7 to 10.1) corresponding to a weight loss of 17.0% (range: 11.3-22.4%) or 20.2 kg (range 16.2 kg to 23.4 kg). We found a comparable reduction in total fat mass (17.2%, p = 0.006) and lean mass (16.0%, p = 0.05), whereas bone mass was unchanged (2.6%, p = 0.12). All cases reported an increase in energy levels, improved mobility and physical activity. Unfavorable eating behaviors were reduced after 1 month of treatment (emotional eating - 41 points, p = 0.02, uncontrolled eating - 23 points, p = 0.11). HbA1c and total cholesterol were significantly reduced (p = 0.014 for both).</p><p><strong>Conclusion: </strong>Semaglutide is a promising and safe treatment option for HO, that improves eating behavior, reduces weight, and improves metabolic markers.</p>","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":" ","pages":"723-730"},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513775/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141860649","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: 2024-06-28DOI: 10.1007/s11102-024-01415-x
Eider Pascual-Corrales, Betina Biagetti, Mónica Marazuela, Diego Asensio-Wandosel, Víctor Rodríguez Berrocal, Ana Irigaray Echarri, Cristina Novo-Rodríguez, María Calatayud, Ignacio Bernabéu, Cristina Alvarez-Escola, Carmen Tenorio-Jiménez, Inmaculada González Molero, Pedro Iglesias, Concepción Blanco, Paz de Miguel, Elena López Mezquita, Cristina Lamas, Anna Aulinas, Paola Gracia, José María Recio-Córdova, Miguel Sampedro-Nuñez, Miguel Paja, María Dolores Moure Rodríguez, Carmen Fajardo-Montañana, Fernando Cordido, Edelmiro Menéndez Torre, Juan Carlos Percovich, Rogelio García-Centeno, Rosa Cámara, Felicia Alexandra Hanzu, Almudena Vicente Delgado, Laura González Fernández, Fernando Guerrero-Pérez, María Dolores Ollero García-Agulló, Iría Novoa-Testa, Rocío Villar-Taibo, Pamela Benítez Valderrama, Pablo Abellán Galiana, Eva Venegas Moreno, Fernando Vidal-Ostos De Lara, Joaquim Enseñat, Silvia Aznar, Queralt Asla, María Dolores Aviles-Pérez, Manel Puig-Domingo, Marta Araujo-Castro
{"title":"Glucose metabolism outcomes after pituitary surgery in patients with acromegaly.","authors":"Eider Pascual-Corrales, Betina Biagetti, Mónica Marazuela, Diego Asensio-Wandosel, Víctor Rodríguez Berrocal, Ana Irigaray Echarri, Cristina Novo-Rodríguez, María Calatayud, Ignacio Bernabéu, Cristina Alvarez-Escola, Carmen Tenorio-Jiménez, Inmaculada González Molero, Pedro Iglesias, Concepción Blanco, Paz de Miguel, Elena López Mezquita, Cristina Lamas, Anna Aulinas, Paola Gracia, José María Recio-Córdova, Miguel Sampedro-Nuñez, Miguel Paja, María Dolores Moure Rodríguez, Carmen Fajardo-Montañana, Fernando Cordido, Edelmiro Menéndez Torre, Juan Carlos Percovich, Rogelio García-Centeno, Rosa Cámara, Felicia Alexandra Hanzu, Almudena Vicente Delgado, Laura González Fernández, Fernando Guerrero-Pérez, María Dolores Ollero García-Agulló, Iría Novoa-Testa, Rocío Villar-Taibo, Pamela Benítez Valderrama, Pablo Abellán Galiana, Eva Venegas Moreno, Fernando Vidal-Ostos De Lara, Joaquim Enseñat, Silvia Aznar, Queralt Asla, María Dolores Aviles-Pérez, Manel Puig-Domingo, Marta Araujo-Castro","doi":"10.1007/s11102-024-01415-x","DOIUrl":"10.1007/s11102-024-01415-x","url":null,"abstract":"<p><strong>Aim: </strong>To investigate the impact of pituitary surgery on glucose metabolism and to identify predictors of remission of diabetes after pituitary surgery in patients with acromegaly.</p><p><strong>Methods: </strong>A national multicenter retrospective study of patients with acromegaly undergoing transsphenoidal surgery for the first time at 33 tertiary Spanish hospitals (ACRO-SPAIN study) was performed. Surgical remission of acromegaly was evaluated according to the 2000 and 2010 criteria.</p><p><strong>Results: </strong>A total of 604 acromegaly patients were included in the study with a total median follow up of 91 months (interquartile range [IQR] 45-163). At the acromegaly diagnosis, 23.8% of the patients had diabetes mellitus (DM) with a median glycated hemoglobin (HbA1c) of 6.9% (IQR 6.4-7.9) [51.9 mmol/mol (IQR 46.4-62.8)]. In the multivariate analysis, older age (odds ratio [OR] 1.02, 95% CI 1.00-1.05), dyslipidemia (OR 5.25, 95% CI 2.81 to 9.79), arthropathy (OR 1.39, 95% CI 2.82 to 9.79), and higher IGF-I levels (OR 1.30, 95% CI 1.05 to 1.60) were associated with a greater prevalence of DM. At the last follow-up visit after surgery, 21.1% of the DM patients (56.7% of them with surgical remission of acromegaly) experienced diabetes remission. The cure rate of DM was more common in older patients (hazard ratio [HR] 1.77, 95% CI 1.31 to 2.43), when surgical cure was achieved (HR 2.10, 95% CI 1.01 to 4.37) and when anterior pituitary function was not affected after surgery (HR 3.38, 95% CI 1.17 to 9.75).</p><p><strong>Conclusion: </strong>Glucose metabolism improved in patients with acromegaly after surgery and 21% of the diabetic patients experienced diabetes remission; being more frequent in patients of older age, and those who experienced surgical cure and those with preserved anterior pituitary function after surgery.</p>","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":" ","pages":"497-506"},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141470352","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: 2024-08-14DOI: 10.1007/s11102-024-01441-9
Guilherme Mansur, Mohammad Bilal Alsavaf, Ludovica Pasquini, Moataz D Abouammo, Chandrima Biswas, Pavnesh Kumar, Raju R Raval, Peter Kobalka, Ricardo L Carrau, Daniel M Prevedello
{"title":"\"Intrasellar tumor-to-tumor metastasis: A single center experience with a systematic review\".","authors":"Guilherme Mansur, Mohammad Bilal Alsavaf, Ludovica Pasquini, Moataz D Abouammo, Chandrima Biswas, Pavnesh Kumar, Raju R Raval, Peter Kobalka, Ricardo L Carrau, Daniel M Prevedello","doi":"10.1007/s11102-024-01441-9","DOIUrl":"10.1007/s11102-024-01441-9","url":null,"abstract":"<p><strong>Purpose: </strong>This study investigates the rare occurrence of tumor-to-tumor metastasis in Pituitary Neuroendocrine Tumors (PitNETs), also known as pituitary adenomas, aiming to enhance understanding of its diagnostic and therapeutic challenges. We report two cases from our institution of tumor-to-tumor metastasis involving PitNETs, followed by a systematic literature review.</p><p><strong>Methods: </strong>We conducted a comprehensive literature review using PubMed and Google Scholar databases. This review provides insights into patient demographics, clinical presentations, primary tumor origin, management approaches and outcomes.</p><p><strong>Results: </strong>We identified 38 documented cases of tumor-to-tumor metastasis involving the pituitary gland in the literature. This revealed a diverse range of primary tumor origins, with lung, breast, and renal carcinomas being the most prevalent. Clinical presentations varied, with visual disturbances emerging as the most frequently reported symptom. Surgical interventions predominantly resulted in subtotal resection. Kaplan-Meier survival analysis demonstrated that endoscopic endonasal approaches (EEA) are associated with longer median survival times compared to other surgical methods.</p><p><strong>Conclusion: </strong>Tumor-to-tumor metastasis to PitNETs must be considered in differential diagnoses of sellar masses. Prompt and accurate diagnosis, coupled with a multidisciplinary treatment strategy, is essential. Our study contributes to the scarce literature on such metastases, providing a foundation for further understanding of this complex pathological entity.</p>","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":" ","pages":"455-467"},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513765/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141976423","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: 2024-05-31DOI: 10.1007/s11102-024-01406-y
Olivia Tausendfreund, Martin Bidlingmaier, Sebastian Martini, Hannah Reif, Michaela Rippl, Katharina Schilbach, Ralf Schmidmaier, Michael Drey
{"title":"The somatotroph pituitary gland function in high-aged multimorbid hospitalized patients with IGF-I deficiency.","authors":"Olivia Tausendfreund, Martin Bidlingmaier, Sebastian Martini, Hannah Reif, Michaela Rippl, Katharina Schilbach, Ralf Schmidmaier, Michael Drey","doi":"10.1007/s11102-024-01406-y","DOIUrl":"10.1007/s11102-024-01406-y","url":null,"abstract":"<p><strong>Purpose: </strong>It is unclear whether the age-related decline in the somatotropic axis stems from a reduced growth hormone (GH) production in the pituitary gland, or from a peripheral origin akin to an acquired GH resistance. With the help of a GHRH/arginine test, high-aged multimorbid hospitalized patients with IGF-I deficiency are to be tested to determine whether there is primarily a pituitary GH deficiency in the sense of a somatopause.</p><p><strong>Methods: </strong>Seventeen multimorbid patients (eleven men and six women) with a mean age of 82 years, with IGF-I concentrations below two standard deviations of 30-year-old men and women were identified. Patients suffered from a variety of common age-related stable diseases including coronary artery disease, chronic liver or kidney disease, chronic heart failure as well as acute conditions e.g., urosepsis or endocarditis. To assess the somatotropic axis they underwent a GHRH/arginine test. Results were evaluated using descriptive statistics.</p><p><strong>Results: </strong>In average, the peak concentration of GH after stimulation was 14.8 µg/L with a range from 2.76 to 47.4 µg/L. Taking into account both, gender and BMI (with a mean of 26.5 kg/m²) for each participant, the pituitary gland was adequately stimulated in 16 out of the 17 patients. No patient reported common side effects related to the GHRH/arginine test.</p><p><strong>Conclusion: </strong>The somatotroph pituitary gland retains its secretory capacity in the advanced aged. Therefore, age does not seem to be the driving pacemaker for the functional decline of the somatotropic axis within the aged population.</p>","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":" ","pages":"480-487"},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513707/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141180482","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: 2024-05-20DOI: 10.1007/s11102-024-01401-3
Victor Hantelius, Oskar Ragnarsson, Gudmundur Johannsson, Daniel S Olsson, Sofie Jakobsson, Erik Thurin, Dan Farahmand, Thomas Skoglund, Tobias Hallen
{"title":"Headache in patients with non-functioning pituitary adenoma before and after transsphenoidal surgery - a prospective study.","authors":"Victor Hantelius, Oskar Ragnarsson, Gudmundur Johannsson, Daniel S Olsson, Sofie Jakobsson, Erik Thurin, Dan Farahmand, Thomas Skoglund, Tobias Hallen","doi":"10.1007/s11102-024-01401-3","DOIUrl":"10.1007/s11102-024-01401-3","url":null,"abstract":"<p><strong>Purpose: </strong>To study the long-term effect of transsphenoidal surgery (TSS) on headache in patients with non-functioning pituitary adenoma (NFPA) and identify factors predicting headache relief following TSS.</p><p><strong>Methods: </strong>We evaluated headache in 101 consecutive patients with NFPA who underwent TSS from September 2015 to December 2021, preoperatively and 12-months post-surgery, by using the Migraine Disability Assessment (MIDAS) questionnaire. Health-related quality of life (QoL) was assessed using the EQ-5D visual analogue scale (EQ-VAS).</p><p><strong>Results: </strong>Of 101 patients, 27 (27%) experienced disabling preoperative headache. Among these, the median total MIDAS score improved from 60 (interquartile range (IQR): 19-140) to 10 (IQR: 0-49) (P = 0.004). Additionally, headache frequency over a 90-day period decreased from 45 (IQR: 25-83) to 6 (IQR: 3-36) days (P = 0.002), and headache intensity decreased from 5 (IQR: 4-7) to 4 (IQR: 2-7) (P = 0.016) at 12-months post-surgery. At 12 months post-surgery, 18 (67%) of 27 patients with preoperatively disabling headache showed clinically relevant improvement of their headache, 4 (15%) showed deterioration, and 5 (19%) remained unchanged. In patients with clinically relevant improvement of their headache, the EQ-VAS score improved from 50 (IQR: 30 - 7) to 80 (IQR: 65-86) (P < 0.001). Of the 74 patients with no preoperative headache, 11 (15%) developed postoperative headache. We identified no clinical factors predicting postoperative headache relief.</p><p><strong>Conclusion: </strong>The study supports that clinically significant and long-lasting improvements of disabling headache and QoL can be achieved with TSS in a substantial number of patients with NFPA.</p>","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":" ","pages":"635-643"},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513753/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141066091","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/s11102-024-01461-5
Turkan Aliyeva, Juliana Muniz, Gustavo Meira Soares, Sarah Firdausa, Lubna Mirza
{"title":"Efficacy and safety of pasireotide treatment in acromegaly: A systematic review and single arm meta-analysis.","authors":"Turkan Aliyeva, Juliana Muniz, Gustavo Meira Soares, Sarah Firdausa, Lubna Mirza","doi":"10.1007/s11102-024-01461-5","DOIUrl":"10.1007/s11102-024-01461-5","url":null,"abstract":"<p><strong>Background: </strong>Acromegaly is a rare chronic endocrine disorder associated with significant comorbidities. Many patients fail to achieve biochemical control with current medical therapies, including surgery and first-generation somatostatin ligands (fg-SRLs). We aimed to perform a systematic review and single-arm meta-analysis to evaluate the efficacy of the multi-receptor somatostatin ligand pasireotide in patients with active or uncontrolled acromegaly.</p><p><strong>Methods: </strong>We systematically searched PubMed, Embase, and Cochrane databases for studies that assessed the efficacy of pasireotide in patients with acromegaly and reported the outcomes of (1) biochemical control and its composite indicators; (2) normalized IGF-1 level and (3) low GH level. For the statistical analysis, we used R software.</p><p><strong>Results: </strong>We included nine studies with a total of 590 patients: four clinical trials and five observational cohorts. 82.2% of the overall population consisted of inadequately controlled acromegaly patients. After a follow-up of 12 months, the pooled biochemical control rate was 26.50% (95% CI 14.87-42.66). The prevalence of normalized IGF-1 and low GH levels was 36.27% (95% CI 29.15-43.39) and 34.76% (95% CI 24.58-44.95), respectively. Additionally, biochemical response rates were sustained throughout the extension phase of these studies. In a pooled analysis including four studies with extension phase results, the prevalence of biochemical control rate was 29.03% (95% CI 11.49-46.58) with 76 events out of 281 patients. The most commonly reported adverse events were gastrointestinal disturbances in 31.26% (95% CI 7.44-72.01) and hyperglycemia in 29.55% (95% CI 21.80-37.29) of patients. The incidence of new-onset diabetes mellitus significantly increased after pasireotide treatment, with a rate of 23.36% (95% CI 19.58-27.13).</p><p><strong>Conclusion: </strong>Pasireotide demonstrates biochemical control in patients with active or uncontrolled acromegaly. Although a high rate of hyperglycemic adverse events and diabetes mellitus related to the treatment were observed, most of them were manageable.</p>","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":" ","pages":"468-479"},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142352506","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: 2024-09-06DOI: 10.1007/s11102-024-01451-7
Afif Nakhleh, Naim Shehadeh, Bshara Mansour
{"title":"GLP-1 receptor agonists may enhance the effects of desmopressin in individuals with AVP deficiency: a case series and proposed mechanism.","authors":"Afif Nakhleh, Naim Shehadeh, Bshara Mansour","doi":"10.1007/s11102-024-01451-7","DOIUrl":"10.1007/s11102-024-01451-7","url":null,"abstract":"<p><strong>Background: </strong>Glucagon-like peptide-1 receptor agonists (GLP-1 RAs) have diverse effects on sodium and water homeostasis. They decrease thirst perception, potentially inhibit arginine vasopressin (AVP) production, and induce natriuresis. We present three cases of AVP deficiency (AVP-D) where GLP-1 RA initiation led to desmopressin dose reduction.</p><p><strong>Cases: </strong>Three patients with AVP-D on stable desmopressin therapy started GLP-1 RAs for type 2 diabetes mellitus or obesity. Following weight loss and decreased thirst, all patients reduced their desmopressin dose while maintaining normal thirst and urine output.</p><p><strong>Discussion: </strong>GLP-1 RAs influence sodium and water homeostasis through various mechanisms. In individuals with intact AVP systems, GLP-1 RAs may directly suppress AVP production and induce natriuresis in the kidney leading to increased water excretion. In AVP-D, with exogenous desmopressin replacing endogenous AVP, the osmotic permeability of collecting ducts is primarily influenced by desmopressin dose. Thus, increased distal fluid delivery may allow for lower desmopressin doses to maintain water balance.</p><p><strong>Conclusion: </strong>Our findings indicate a potential interaction between GLP-1 RAs and desmopressin in AVP-D. Clinicians should reassess desmopressin dosage upon initiating GLP-1 RA therapy.</p>","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":" ","pages":"731-736"},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513766/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142140846","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: 2024-07-03DOI: 10.1007/s11102-024-01424-w
Laeticia Laane, Simone Renner, Elisabeth Kemter, Michael Stirm, Birgit Rathkolb, Andreas Blutke, Martin Bidlingmaier, Martin Hrabĕ de Angelis, Eckhard Wolf, Arne Hinrichs
{"title":"Decreased β-cell volume and insulin secretion but preserved glucose tolerance in a growth hormone insensitive pig model.","authors":"Laeticia Laane, Simone Renner, Elisabeth Kemter, Michael Stirm, Birgit Rathkolb, Andreas Blutke, Martin Bidlingmaier, Martin Hrabĕ de Angelis, Eckhard Wolf, Arne Hinrichs","doi":"10.1007/s11102-024-01424-w","DOIUrl":"10.1007/s11102-024-01424-w","url":null,"abstract":"<p><strong>Purpose: </strong>Growth hormone (GH) is a central regulator of β-cell proliferation, insulin secretion and sensitivity. Aim of this study was to investigate the effect of GH insensitivity on pancreatic β-cell histomorphology and consequences for metabolism in vivo.</p><p><strong>Methods: </strong>Pancreata from pigs with growth hormone receptor deficiency (GHR-KO, n = 12) were analyzed by unbiased quantitative stereology in comparison to wild-type controls (WT, n = 12) at 3 and 7-8.5 months of age. In vivo secretion capacity for insulin and glucose tolerance were assessed by intravenous glucose tolerance tests (ivGTTs) in GHR-KO (n = 3) and WT (n = 3) pigs of the respective age groups.</p><p><strong>Results: </strong>Unbiased quantitative stereological analyses revealed a significant reduction in total β-cell volume (83% and 73% reduction in young and adult GHR-KO vs. age-matched WT pigs; p < 0.0001) and volume density of β-cells in the pancreas of GHR-KO pigs (42% and 39% reduction in young and adult GHR-KO pigs; p = 0.0018). GHR-KO pigs displayed a significant, age-dependent increase in the proportion of isolated β-cells in the pancreas (28% in young and 97% in adult GHR-KO vs. age-matched WT pigs; p = 0.0009). Despite reduced insulin secretion in ivGTTs, GHR-KO pigs maintained normal glucose tolerance.</p><p><strong>Conclusion: </strong>GH insensitivity in GHR-KO pigs leads to decreased β-cell volume and volume proportion of β-cells in the pancreas, causing a reduced insulin secretion capacity. The increased proportion of isolated β-cells in the pancreas of GHR-KO pigs highlights the dependency on GH stimulation for proper β-cell maturation. Preserved glucose tolerance accomplished with decreased insulin secretion indicates enhanced sensitivity for insulin in GH insensitivity.</p>","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":" ","pages":"567-576"},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513746/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141498832","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: 2024-08-01DOI: 10.1007/s11102-024-01438-4
Susan L Samson
{"title":"Is diabetes with acromegaly for life?","authors":"Susan L Samson","doi":"10.1007/s11102-024-01438-4","DOIUrl":"10.1007/s11102-024-01438-4","url":null,"abstract":"","PeriodicalId":20202,"journal":{"name":"Pituitary","volume":" ","pages":"433-436"},"PeriodicalIF":3.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141860680","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}