Grace Kong, Geertje Noe, Cherie Chiang, Ken Herrmann, Thomas A Hope, Michael Michael
{"title":"Assessment of response to PRRT including anatomical and molecular imaging as well as novel biomarkers.","authors":"Grace Kong, Geertje Noe, Cherie Chiang, Ken Herrmann, Thomas A Hope, Michael Michael","doi":"10.1111/jne.13461","DOIUrl":"https://doi.org/10.1111/jne.13461","url":null,"abstract":"<p><p>Peptide receptor radionuclide therapy (PRRT) is an effective treatment for both oncological and hormone control and is a widely accepted standard of care treatment for patients with neuroendocrine neoplasms (NEN). Its use is anticipated to increase significantly, and this demands accurate tools and paradigms to assess treatment response post PRRT. This article outlines the current role and future developments of anatomical, molecular imaging and biomarkers for response assessment to PRRT, highlighting the challenges and provides perspectives for the need to focus on a multimodality, multidisciplinary and individualised approach for patients with this complex heterogeneous disease.</p>","PeriodicalId":16535,"journal":{"name":"Journal of Neuroendocrinology","volume":" ","pages":"e13461"},"PeriodicalIF":3.3,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142622380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Anila Katragadda, Jessica Kunadia, Polly Kirsch, Brenda Dorcely, Shruti Shah, Zachary Henig, Asha Job, Richard A Feelders, Nidhi Agrawal
{"title":"Cognitive decline in Cushing's syndrome: A systematic review.","authors":"Anila Katragadda, Jessica Kunadia, Polly Kirsch, Brenda Dorcely, Shruti Shah, Zachary Henig, Asha Job, Richard A Feelders, Nidhi Agrawal","doi":"10.1111/jne.13466","DOIUrl":"10.1111/jne.13466","url":null,"abstract":"<p><p>The neurocognitive and psychiatric effects of Cushing's syndrome (CS) are well recognized and negatively impact quality of life. The aim of this systematic review is to compare neurocognitive disease, psychiatric symptoms, and structural brain changes in patients with Cushing's disease (CD)/CS and those with non-functioning pituitary adenoma (NFPA), both before and after surgical treatment, and in comparison to healthy controls. Possible predictors of persistent neurocognitive symptoms and reduced quality of life in patients with CS are highlighted. We reviewed the English literature published in Medline/Pubmed until 2021 to identify eligible studies. This systematic review was registered on Prospero and reported following the PRISMA statement guidelines. The initial literature search yielded 1772 articles, of which 1096 articles remained after removing duplicates. After excluding case reports, animal studies, narrative reviews, comparative reviews, and articles not in English, 86 papers underwent full-text review. Studies eligible for inclusion met the following criteria: (1) described patients with CD/CS, (2) reports of psychiatric symptoms, (3) written in English or with available English translation, and (4) published in a peer-reviewed journal. The full-text review process identified 40 eligible studies. The 40 studies included a total of 2603 participants with CD or CS, with 45.2% of the total participants having CD. The majority of studies were case-control studies and used validated questionnaires such as the Beck's Depression Index, Trail Making Test, Hospital Anxiety and Depression Scale, and Cushing Quality of Life for screening. Compared to NFPA controls, patients with CD who had greater baseline serum cortisol levels had worse cognitive function, even after surgical remission. This suggests a possible association between greater baseline cortisol levels in patients with CS and persistent cognitive impairment. A longer duration of uncontrolled CS was associated with worse cognitive function; however, there was no association found between the length of remission and memory. Overall brain volume was increased in patients in remission from CD compared to active disease. However, temporal and frontal lobe volumes did not recover to normal volumes. Patients with CS experience neurocognitive dysfunction, psychiatric disorders, and diminished quality of life, and symptoms may persist after curative surgery. We found several factors consistently associated with persistent cognitive and neuropsychiatric symptoms in patients with CS including higher pre-operatively baseline cortisol production, longer duration of disease, frontal and temporal lobe atrophy, and the presence of cognitive and neuropsychiatric symptoms at baseline. Larger prospective studies are required to validate these findings.</p>","PeriodicalId":16535,"journal":{"name":"Journal of Neuroendocrinology","volume":" ","pages":"e13466"},"PeriodicalIF":3.3,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142589712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gowri M Ratnayake, Kalyan Mansukhbhai Shekhda, Thomas Glover, Yasser Al-Obudi, Aimee Hayes, Panagiotis Armonis, Dalvinder Mandair, Bernard Khoo, TuVinh Luong, Christos Toumpanakis, Ashley Grossman, Martyn Caplin
{"title":"Neuroendocrine tumours and pregnancy: Real-world data from an European Neuroendocrine Tumour Centre of Excellence.","authors":"Gowri M Ratnayake, Kalyan Mansukhbhai Shekhda, Thomas Glover, Yasser Al-Obudi, Aimee Hayes, Panagiotis Armonis, Dalvinder Mandair, Bernard Khoo, TuVinh Luong, Christos Toumpanakis, Ashley Grossman, Martyn Caplin","doi":"10.1111/jne.13465","DOIUrl":"https://doi.org/10.1111/jne.13465","url":null,"abstract":"<p><p>Neuroendocrine neoplasms (NENs) arise from the diffuse endocrine system and have been considered to be rare. However, the incidence and prevalence of these tumours have increased in recent years, and they are being seen in younger patients including women in the reproductive age group. Due to the paucity of data, diagnostic and therapeutic strategies in managing such tumours during pregnancy can be challenging to both treating physicians and patients. This article describes the experience and outcomes of managing pregnant women with NEN at a European Neuroendocrine Tumour Society (ENETS) Centre of Excellence. In this retrospective analysis, we evaluated a total of 22 pregnancies in 18 pregnant women with concurrent diagnoses of NENs who were managed at Royal Free Hospital ENETS Centre of Excellence throughout their pregnancy. These were identified from our tumour registry of 3500 NEN patients between 2015 and 2023. Cross-sectional imaging (computed tomography (CT)/magnetic resonance imaging (MRI)), pre- and post-pregnancy, for each patient was reviewed by an experienced radiologist. Tumour growth rate (TGR) was calculated using the formula: TGR = 100 × [exp (TG) - 1]; TG. [3 × log (D2/D1)]/time (months), where D1 is the tumour size at date 1; D2 is the tumour size at date 2; and time (months) = (Date 2 - Date 1 + 1)/30.44. Tumour growth rate pre-conception (TGRpc) and tumour growth rate post-partum (TGRpp) were calculated for each patient. In a sub-group of patients, positivity for oestrogen and progesterone receptors were analysed on the tumour tissue to evaluate whether the presence of these receptors affected tumour progression during the pregnancy. We also reviewed the pregnancy outcome in patients treated with somatostatin analogues during pregnancy. We analysed the data of a total 22 pregnancy encounters in 18 women: 15 pregnancies (68%) preceded the diagnosis of the NEN, whereas the diagnosis of NEN was made during pregnancy or in the post-partum period in 5 (23%) and 2 (9%) pregnancies respectively. Eight patients (44%) had a diagnosis of a pancreatic NEN, whereas 5 (28%) were diagnosed with mid-gut NENs, and a further 5 at other sites. The majority of the patients (n = 12, 67%) had evidence of metastatic disease at the time of diagnosis. Most pregnancies had a successful outcome (n = 19, 86%), whereas 3 patients (14%) had miscarriages in the 1st trimester. Five patients in total of 6 pregnancies were treated with somatostatin analogues as monotherapy during the pregnancy, and all of them had stable disease after pregnancy. All of them delivered healthy babies without any side effects or complications due to therapy. The average TGRpc was -0.8% (n = 5) and the average TGRpp was +0.96% (n = 6); 2 patients who did not have suitable targets for calculation of TGRpc developed new lesions suggesting disease progression. Moreover, 2 of the 4 patients who have had both pre-conception and post-pregnancy scans showed an increase in TGRpp com","PeriodicalId":16535,"journal":{"name":"Journal of Neuroendocrinology","volume":" ","pages":"e13465"},"PeriodicalIF":3.3,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142583156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hypothalamic-pituitary-adrenal axis plasticity across life-history stages of a free-living subtropical finch, Amandava amandava amandava.","authors":"Banalata Mohanty","doi":"10.1111/jne.13459","DOIUrl":"https://doi.org/10.1111/jne.13459","url":null,"abstract":"<p><p>The alterations of phenotypic traits (morphology, endocrine physiology, and behavior) in response to predictable environmental cues across life-history stages in seasonally breeding birds enable successful culmination of reproduction. The present study elucidated the plasticity of the hypothalamic-pituitary-adrenal (HPA) axis in a subtropical free-living finch, Amandava amandava amandava, and suggests the crucial role of the baseline corticosterone (CORT) to coordinate energetic readiness across life-history stages. Birds were captured monthly from an area (25.1337° N 82.5644° E) in Uttar Pradesh, India, from June 2014 to May 2015. Only male birds were included in this study corresponding to different life-history stages (6/life-history stage; 2/month): pre-breeding (June-August), breeding (September-November), post-breeding (December-February), and quiescent phases (March-May). The pituitary expression of adrenocorticotropic hormone (ACTH), adrenal interrenal cell morphometry, and plasma level of the CORT showed varied patterns across life-history stages. The density and immunointensity of the ACTH-immunoreactive corticotropes and the interrenal cell number increased along with the significant plasma CORT elevation during the breeding cycle (both pre-breeding and breeding phases). CORT might facilitate the energy demand for the display of sexual behavior (nest-building, courtship), testicular recrudescence, and foraging of food for offspring during the breeding cycle. On the contrary, plasma CORT decrease in the post-breeding and quiescent phases might enable the bird to molt avoiding the protein catabolic effect of the hormone. Given the complexity involved in the study of baseline CORT in free-living birds, more studies are needed to better understand the crucial role of the HPA axis in the modulation of life-history stages in this and other subtropical avian species.</p>","PeriodicalId":16535,"journal":{"name":"Journal of Neuroendocrinology","volume":" ","pages":"e13459"},"PeriodicalIF":3.3,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142546008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kevin M Moran, Ava Elana Enstrom, Leah Jarrell, Misheel Khashchuluun, Anna Tran, Yvon Delville
{"title":"Adolescent social stress alters the role of orexin innervation in the hindbrain in male hamsters.","authors":"Kevin M Moran, Ava Elana Enstrom, Leah Jarrell, Misheel Khashchuluun, Anna Tran, Yvon Delville","doi":"10.1111/jne.13457","DOIUrl":"https://doi.org/10.1111/jne.13457","url":null,"abstract":"<p><p>Juvenile male hamsters exposed to chronic social stress eat more, gain weight, and have larger fat pads. The purpose of the present study was to address possible changes in food hoarding and orexin/hypocretin innervation in response to social stress. Male hamsters in early adolescence were exposed to a resident-intruder social stress paradigm or control condition daily for 2 weeks. Metabolism-related physiological measures and behaviors were tracked, and brains were immunocytochemically labeled for orexin-A. Our data confirm our previous observations on appetite, weight gain, and obesity, and showed a strong trend toward enhanced food hoarding as in prior studies. In addition, there were no statistically significant differences in orexin innervation in any brain area analyzed. However, unique correlation patterns were observed between orexin innervation and appetite or metabolic outcome. In particular, opposite correlations were observed between groups within the dorsal raphe nucleus, lateral parabrachial nucleus, and nucleus of the solitary tract. These opposite patterns of correlations suggest chronic social stress causes site-specific alterations in synaptic activity in relation with these behaviors.</p>","PeriodicalId":16535,"journal":{"name":"Journal of Neuroendocrinology","volume":" ","pages":"e13457"},"PeriodicalIF":3.3,"publicationDate":"2024-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142502357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Robin J Bearss, Isabella A Oliver, Peighton N Neuman, Wahab I Abdulmajeed, Jennifer M Ackerman, Richard Piet
{"title":"Activation of ionotropic and group I metabotropic glutamate receptors stimulates kisspeptin neuron activity in mice.","authors":"Robin J Bearss, Isabella A Oliver, Peighton N Neuman, Wahab I Abdulmajeed, Jennifer M Ackerman, Richard Piet","doi":"10.1111/jne.13456","DOIUrl":"https://doi.org/10.1111/jne.13456","url":null,"abstract":"<p><p>Different populations of hypothalamic kisspeptin (KISS1) neurons located in the rostral periventricular area of the third ventricle (RP3V) and arcuate nucleus (ARC) are thought to generate the sex-specific patterns of gonadotropin secretion. These neuronal populations integrate gonadal sex steroid feedback with internal and external cues relayed via the actions of neurotransmitters and neuropeptides. The excitatory amino acid neurotransmitter glutamate, the main excitatory neurotransmitter in the brain, plays a role in regulating gonadotropin secretion, at least partially through engaging KISS1 signaling. The expression and function of individual glutamate receptor subtypes in KISS1 neurons, however, are not well characterized. Here, we used GCaMP-based calcium imaging and patch-clamp electrophysiology to assess the impact of activating individual ionotropic (iGluR) and group I metabotropic (mGluR) glutamate receptors on KISS1 neuron activity in the mouse RP3V and ARC. Our results indicate that activation of all iGluR subtypes and of group I mGluRs, likely mGluR1, consistently drives activity in the majority of KISS1 neurons within the RP3V and ARC of males and females. Our results also revealed, somewhat unexpectedly, sex- and region-specific differences. Indeed, activating (S)-α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) type iGluRs evoked larger responses in female ARC<sup>KISS1</sup> neurons than in their male counterparts whereas activating group I mGluRs induced larger responses in RP3V<sup>KISS1</sup> neurons than in ARC<sup>KISS1</sup> neurons in females. Together, our findings suggest that glutamatergic neurotransmission in KISS1 neurons, and its impact on the activity of these cells, might be sex- and region-dependent in mice.</p>","PeriodicalId":16535,"journal":{"name":"Journal of Neuroendocrinology","volume":" ","pages":"e13456"},"PeriodicalIF":3.3,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142467950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sean D T Aitken, Broderick M B Parks, Marjorie Sollows, Colleen A Barber, Leslie S Phillmore
{"title":"Seasonal patterns of neurogenesis in European starlings (Sturnus vulgaris) are region- and sex-specific.","authors":"Sean D T Aitken, Broderick M B Parks, Marjorie Sollows, Colleen A Barber, Leslie S Phillmore","doi":"10.1111/jne.13455","DOIUrl":"https://doi.org/10.1111/jne.13455","url":null,"abstract":"<p><p>Songbird vocal behavior, physiology, and brains-including neurogenesis-change between seasons. We examined seasonal differences in neurogenesis in three brain regions associated with vocal production and learning, HVC (letter-based proper name), robust nucleus of the arcopallium (RA), and Area X, and two brain regions associated with auditory perception, caudomedial nidopallium (NCM) and caudomedial mesopallium (CMM). To do this, we captured wild male and female European starlings (Sturnus vulgaris) in spring and fall, collected a blood sample, and minimized time from capture to tissue collection to limit suppressive effects of captivity on neurogenesis. We quantified neurogenesis using doublecortin (DCX) immunohistochemistry, counting new neurons of three DCX cell morphologies (multipolar, fusiform, and round). We found regional differences in types of morphologies expressed, and amount of neurogenesis across regions: NCM had more fusiform cells than all other regions, and RA had more round cells than other regions. Males had more neurogenesis in HVC in fall than in spring, but there was no seasonal difference in neurogenesis in HVC of females, perhaps reflecting sexually dimorphic vocal learning demands related to repertoire size and complexity. Plasma corticosterone was higher in spring than fall and was correlated with testis volume in males, but it was not correlated with another purported measure of stress, heterophil:lymphocyte ratio (HLR), nor with neurogenesis. Our results suggest that the addition of new neurons to specific regions and circuits may serve different functions for males and females, particularly in the context of vocal production, learning, and perceptual demands across seasons.</p>","PeriodicalId":16535,"journal":{"name":"Journal of Neuroendocrinology","volume":" ","pages":"e13455"},"PeriodicalIF":3.3,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142467952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Philipp Melhorn, Markus Raderer, Peter Mazal, Luzia Berchtold, Lucian Beer, Barbara Kiesewetter
{"title":"Liver metastases in high-grade neuroendocrine neoplasms: A comparative study of hepatic tumor volume and biochemical findings in NET G3 versus NEC.","authors":"Philipp Melhorn, Markus Raderer, Peter Mazal, Luzia Berchtold, Lucian Beer, Barbara Kiesewetter","doi":"10.1111/jne.13454","DOIUrl":"https://doi.org/10.1111/jne.13454","url":null,"abstract":"<p><p>Abnormal liver blood tests and liver tumor burden are known prognostic factors in neuroendocrine neoplasms (NEN). However, the relationship between biochemical liver parameters and hepatic tumor load is largely unknown in NEN and in high-grade NEN (G3) specifically. The primary objective of this study was to correlate the biochemical parameters and liver tumor volume of patients with neuroendocrine tumors grade 3 (NET G3) or neuroendocrine carcinomas (NEC). We wanted to investigate whether patients with NET G3 with extensive liver involvement had less severely elevated laboratory liver parameters than NEC patients. In total, 46 patients with NEN were included, 31 had NEC and 15 NET G3. All patients had distant metastatic disease, with liver metastases being the most common (n = 39). Both laboratory results and semiautomatic volumetric measurements of liver tumor burden were obtainable for 34 patients at baseline and 26 patients at follow-up. Alkaline phosphatase (AP), gamma-GT (gGT), and lactate dehydrogenase (LDH) increased significantly between the two time periods (p < .01). In a regression model, liver tumor burden significantly affected several blood parameters, for example, increasing AP, gGT, LDH, and aspartate aminotransferase (ASAT) by a factor of 1.02-1.04 per unit increase (1% tumor burden; all p < .001). AP, gGT, and LDH were significantly lower in NET G3 (factor of 0.43-0.68) than in NEC. Here, we found that liver chemistries changed over the NEN disease course, correlated with hepatic tumor burden, and differed by histologic subtype. The current data can potentially guide treatment decisions, for example, with regard to integration of liver-directed therapies.</p>","PeriodicalId":16535,"journal":{"name":"Journal of Neuroendocrinology","volume":" ","pages":"e13454"},"PeriodicalIF":3.3,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142467951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Niklas Blank, Molly Weiner, Shaan Patel, Sarah Köhler, Christoph A Thaiss
{"title":"Mind the GAPS: Glia associated with psychological stress.","authors":"Niklas Blank, Molly Weiner, Shaan Patel, Sarah Köhler, Christoph A Thaiss","doi":"10.1111/jne.13451","DOIUrl":"https://doi.org/10.1111/jne.13451","url":null,"abstract":"<p><p>Glial cells are an integral component of the nervous system, performing crucial functions that extend beyond structural support, including modulation of the immune system, tissue repair, and maintaining tissue homeostasis. Recent studies have highlighted the importance of glial cells as key mediators of stress responses across different organs. This review focuses on the roles of glial cells in peripheral tissues in health and their involvement in diseases linked to psychological stress. Populations of glia associated with psychological stress (\"GAPS\") emerge as a promising target cell population in our basic understanding of stress-associated pathologies, highlighting their role as mediators of the deleterious effects of psychological stress on various health conditions. Ultimately, new insights into the impact of stress on glial cell populations in the periphery may support clinical efforts aimed at improving the psychological state of patients for improved health outcomes.</p>","PeriodicalId":16535,"journal":{"name":"Journal of Neuroendocrinology","volume":" ","pages":"e13451"},"PeriodicalIF":3.3,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142391213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Darshana Kapri, Amartya Pradhan, Ratna Mahathi Vuruputuri, Vidita A Vaidya
{"title":"Sex differences in the influence of adult-onset hypothyroidism on hippocampal progenitor survival and neuronal differentiation in mice.","authors":"Darshana Kapri, Amartya Pradhan, Ratna Mahathi Vuruputuri, Vidita A Vaidya","doi":"10.1111/jne.13453","DOIUrl":"https://doi.org/10.1111/jne.13453","url":null,"abstract":"<p><p>The ongoing production of newborn neurons in the adult hippocampus is reported to be sensitive to perturbations of thyroid hormone signaling, in male rats and mice. Here, we examined whether the neurogenic changes evoked by adult-onset hypothyroidism exhibit sex differences, using male and female C57BL/6N mice. We assessed the impact of goitrogen-induced, adult-onset hypothyroidism on the postmitotic survival and differentiation of hippocampal progenitors in male and female mice. Adult-onset hypothyroidism evoked a significant decline in the postmitotic survival and neuronal differentiation of adult-born progenitors within the dentate gyrus hippocampal subfield of male, but not female, mice. We observed a significant decrease in the number of immature neurons within the hippocampi of adult-onset hypothyroid male mice, whereas adult-onset hypothyroidism evoked by goitrogens using the same treatment paradigms did not evoke any change in immature neuron number in female mice. Gene expression analysis within the hippocampi of euthyroid male and female mice revealed sex-dependent, differential expression of thyroid hormone receptor genes, as well as genes linked to thyroid hormone metabolism and transport. Collectively, our findings highlight sex differences in the influence of goitrogen-induced, adult-onset hypothyroidism on hippocampal neurogenesis, with male, but not female, mice exhibiting a decline in postmitotic hippocampal progenitor survival and neuronal differentiation. These findings underscore the importance of sex as a vital variable when considering the impact of thyroid hormone signaling on the adult hippocampal neurogenic niche.</p>","PeriodicalId":16535,"journal":{"name":"Journal of Neuroendocrinology","volume":" ","pages":"e13453"},"PeriodicalIF":3.3,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142365481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}