Article
Neurosciences
Alev Selek, Zehra Seda Unal Halbutogullari, Cigdem Inci Aydemir, Berrin Cetinarslan, Zeynep Canturk, Ilhan Tarkun, Gulay Erman, Cansu Subasi, Karaoz Erdal
Summary: This study investigates the potential of using an aromatase inhibitor as a substitute for testosterone in treating prolactinomas. The findings reveal that the aromatase inhibitor can inhibit cell proliferation and induce apoptosis in prolactinoma cells, as well as reduce prolactin and estrogen levels.
MOLECULAR NEUROBIOLOGY
(2023)
Article
Zoology
Julianna H. Prim, Marshall C. Phillips, Melissa S. Lamm, Jeannie Brady, Itze Cabral, Shelby Durden, Elizabeth Dustin, Allison Hazellief, Brandon Klapheke, April D. Lamb, Alison Lukowsky, Dianna May, Sidney G. Sanchez, Kelly C. Thompson, William A. Tyler, John Godwin
Summary: This study focused on examining the variations in estrogenic signaling across different sexual phenotypes and sex change processes in the bluehead wrasse. The results suggest that alterations in neural estrogen signaling play a key role in socially-controlled sex change and sexual phenotype differences. Additionally, the study highlights the possibility of an inverted-U shaped relationship between neural estrogen and male-typical behaviors.
JOURNAL OF EXPERIMENTAL ZOOLOGY PART A-ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY
(2022)
Article
Engineering, Environmental
Kun Qiao, Zhuoying Liang, Aoxue Wang, Qiong Wu, Siyu Yang, Yongfang Ma, Shuying Li, Sabrina Schiwy, Jinhua Jiang, Shengli Zhou, Qingfu Ye, Henner Hollert, Wenjun Gui
Summary: In this study, the effects of tebuconazole on the sex differentiation and hormone levels in zebrafish were investigated. The results showed that long-term exposure to tebuconazole significantly increased the proportion of males and led to an increase in testosterone levels and a decrease in estradiol and aromatase gene expression. However, chemically activated luciferase gene expression assays suggested that the male-biased sex differentiation was not caused by direct binding of tebuconazole to sex hormone receptors. Molecular docking and activity assays further confirmed the interaction between tebuconazole and aromatase. These findings highlight the potential threat of tebuconazole in inducing gender imbalance in fish populations.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Diana Kata, Ilona Grof, Zsofia Hoyk, Eszter Ducza, Maria A. Deli, Istvan Zupko, Imre Foldesi
Summary: In this study, a complex fluorescent immunocytochemical analysis revealed the colocalization of aromatase with the nuclear stain in GFAP-positive astrocytes in cell cultures and adult rat brain, suggesting a unique mechanism in astrocytes that may regulate certain CNS functions via estradiol production.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Review
Endocrinology & Metabolism
Maki Fukami, Tsutomu Ogata
Summary: Estrogens play important roles in pubertal development, reproductive function, bone turnover, and metabolic conditions. Mutations in genes related to estrogen synthesis and action can lead to congenital disorders. Clinical studies on these disorders provide insights into the functions of estrogens in the human body.
BEST PRACTICE & RESEARCH CLINICAL ENDOCRINOLOGY & METABOLISM
(2022)
Article
Chemistry, Medicinal
Lilan Xin, Jian Min, Hebing Hu, Yuanyuan Li, Chuanqian Du, Baohua Xie, Yan Cheng, Xiaofei Deng, Xiangping Deng, Kang Shen, Jian Huang, Chun -Chi Chen, Rey-Ting Guo, Chune Dong, Hai -Bing Zhou
Summary: In this study, a novel class of dual-targeting selective estrogen receptor degraders (SERDs) based on a three-dimensional oxabicycloheptene sulfonamide (OBHSA) scaffold equipped with aromatase inhibitor (AI) activity were identified. These compounds showed excellent ERa degradation activity, ARO inhibitory activity, and antiproliferative activity against drug-resistant breast cancer cells.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2023)
Article
Neurosciences
Philipp Wartenberg, Imre Farkas, Veronika Csillag, William H. Colledge, Erik Hrabovszky, Ulrich Boehm
Summary: Sex steroid hormones act on hypothalamic kisspeptin neurons to regulate reproductive neural circuits in the brain, with a network of aromatase neurons identified in the hypothalamus and amygdala. By birth, this network becomes sexually dimorphic, with aromatase neurons in the arcuate nucleus converting testosterone to estrogen to regulate kisspeptin neuron activity. The study highlights a novel mechanism whereby aromatase neurons regulate the activity of distinct neuronal populations expressing estrogen receptors.
JOURNAL OF NEUROSCIENCE
(2021)
Article
Fisheries
Yinjun Jiang, Hongrui Luo, Mingxi Hou, Ji Chen, Binbin Tao, Zuoyan Zhu, Yanlong Song, Wei Hu
Summary: This study developed an artificial method for inducing sex change in rice field eels, converting female eels into functional males, and measured physiological parameters and gene expression during the process. The results demonstrated that endogenous estrogen synthesis plays a key role in the sex change of rice field eels, highlighting the importance of this method in breeding rice field eels.
Article
Engineering, Environmental
Yan Hu, Xuan Ma, Rongjian Liu, Iqra Mushtaq, Yongmei Qi, Cong Yuan, Dejun Huang
Summary: This study investigates the effects of 2,4-dichlorophenol (2,4-DCP) on the number of primordial germ cells (PGCs) in zebrafish. The results show that 2,4-DCP exposure increases PGC numbers and upregulates the expression of PGC marker genes. It is also found that 2,4-DCP interacts with estrogen receptor 2a (ESR2a) and the ESR2a signaling pathway plays a role in mediating the increase in PGC numbers.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Oncology
Cristina Ferreira Almeida, Natercia Teixeira, Maria Joao Valente, Anne Marie Vinggaard, Georgina Correia-da-Silva, Cristina Amaral
Summary: Estrogen receptor-positive (ER+) breast cancer accounts for 70-85% of cases and combining CBD with aromatase inhibitors (AIs) may improve treatment effectiveness. CBD potentiates the anti-tumor effects of exemestane (Exe) by modulating cell death and specific targets such as ERa and AR. This study highlights the potential benefits of combining CBD with Exe and suggests new therapeutic approaches using cannabinoids.
Article
Multidisciplinary Sciences
Mehdi Baratchian, Jeffrey M. McManus, Mike P. Berk, Fumihiko Nakamura, Sanjay Mukhopadhyay, Weiling Xu, Serpil Erzurum, Judy Drazba, John Peterson, Eric A. Klein, Benjamin Gaston, Nima Sharifi
Summary: Sex discordance in COVID-19 outcomes may not be related to TMPRSS2 but may be associated with modest changes in ACE2.
SCIENTIFIC REPORTS
(2021)
Review
Multidisciplinary Sciences
Johanna M. Schafer, Tong Xiao, Hyunwoo Kwon, Katharine Collier, Yuzhou Chang, Hany Abdel-Hafiz, Chelsea Bolyard, Dongjun Chung, Yuanquan Yang, Debasish Sundi, Qin Ma, Dan Theodorescu, Xue Li, Zihai Li
Summary: This article explains the reasons behind higher incidence and mortality rates for males in non-reproductive system cancers, focusing on the role of sex chromosomes and sex hormones in driving differential adaptive immunity. The article highlights the involvement of cell-intrinsic androgen receptors in CD8(+) T cell dysfunction or exhaustion in the tumor microenvironment, and summarizes ongoing clinical efforts to investigate the impact of androgen blockade on cancer immunotherapy. It emphasizes the importance of a comprehensive research approach to understanding sex dimorphisms in cancer and advocating for considering sex as a crucial factor in guiding treatment decisions in the future.
Article
Ecology
Jesse S. Krause, Trevor Watkins, Angus M. A. Reid, Jeffrey C. Cheah, Jonathan H. Perez, Valerie R. Bishop, Marilyn Ramenofsky, John C. Wingfield, Simone L. Meddle
Summary: Circulating sex steroids and gene expression in skeletal muscles vary seasonally and differ between migrant and resident subspecies of white-crowned sparrow, suggesting a role in adapting to seasonal changes and different life history strategies.
Article
Cell Biology
Moemi Horiuchi, Seishi Hagihara, Manabu Kume, Daichi Chushi, Yuya Hasegawa, Hikaru Itakura, Yoh Yamashita, Shinji Adachi, Shigeho Ijiri
Summary: This study provides the first demonstration of the entire process of natural gonadal sex differentiation in eels at both molecular and morphological levels. The findings suggest that sex differentiation in eels is triggered by growth rather than aging.
Article
Obstetrics & Gynecology
Willem Jan van Weelden, Roy I. Lalisang, Johan Bulten, Kristina Lindemann, Heleen J. van Beekhuizen, Hans Trum, Dorry Boll, Henrica M. J. Werner, Luc R. C. W. van Lonkhuijzen, Refika Yigit, David Forsse, Petronella O. Witteveen, Khadra Galaal, Alexandra van Ginkel, Eliana Bignotti, Vit Weinberger, Sanne Sweegers, Judith R. Kroep, Silvia Cabrera, Marc P. L. M. Snijders, Marcia A. Inda, Ane Gerda Z. Eriksson, Camilla Krakstad, Andrea Romano, Anja van de Stolpe, Johanna M. A. Pijnenborg
Summary: This study aimed to improve the efficacy of hormonal therapy in advanced or recurrent endometrial cancer by analyzing hormone receptor expressions and pathway activity. Results showed that using a 50% cutoff level for hormone receptor expression significantly enhanced the prediction of response to hormonal treatment.
AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY
(2021)
Article
Endocrinology & Metabolism
Xiaomeng Li, Charles Brighton Ndandala, Qi Zhou, Chunyan Huang, Guangli Li, Huapu Chen
Summary: This study investigated the role of estrogen receptors (ERs) in vitellogenesis (Vtgs) regulation in pompano fish. The findings suggest that E2 may regulate the expression of different subtypes of vtg through ERs, displaying a compensatory expression effect on the regulation of ers and vtgs. This provides a theoretical basis for further research on reproductive endocrinology in pompano fish.
GENERAL AND COMPARATIVE ENDOCRINOLOGY
(2024)
Article
Endocrinology & Metabolism
Norio Kansaku, Takeshi Ohkubo
Summary: Endocrine changes during bird reproduction, particularly the relationship between prolactin and incubation behavior, were investigated. The study monitored the physiological status and incubation behavior of Silkie hens over 1-2 years. The results showed that most mature hens exhibited incubation behavior multiple times, and there was a noticeable increase in nest occupancy 7-10 days before incubation onset. Protein analysis revealed that secreted prolactin during the reproductive cycle contains various isoforms, suggesting post-translational modifications like glycosylation and phosphorylation.
GENERAL AND COMPARATIVE ENDOCRINOLOGY
(2024)
Article
Endocrinology & Metabolism
Minghui Li, Lina Sun, Linyan Zhou, Deshou Wang
Summary: This article summarizes the importance of the Nile tilapia as an excellent animal model for studying reproductive endocrinology in fish, with a focus on the crucial role of estrogen in female development.
GENERAL AND COMPARATIVE ENDOCRINOLOGY
(2024)
Article
Endocrinology & Metabolism
Breanna N. Harris, Carolyn M. Bauer, James A. Carr, Caitlin R. Gabor, Jennifer L. Grindstaff, Caleigh Guoynes, Jennifer J. Heppner, Cris C. Ledon-Rettig, Patricia C. Lopes, Sharon E. Lynn, Carla B. Madelaire, Lorin A. Neuman-Lee, Maria G. Palacios, Paul Soto, Jennifer Terry
Summary: The COVID-19 pandemic had a significant impact on academics, particularly on those with minoritized identities or who were early career, caregivers, or had intersecting identities. The pandemic altered the impact factors of academia, including scholarly products, and affected the way individuals could respond. It is predicted that the pandemic will have long-term impacts on the population dynamics, composition, and landscape of the academic ecosystem. The number of journal submissions decreased, especially among women authors, and the pandemic heavily impacted women authors from Asia and the Middle East.
GENERAL AND COMPARATIVE ENDOCRINOLOGY
(2024)