Article
Cell Biology
Irina Bacila, Vincent T. Cunliffe, Nils P. Krone
Summary: This article provides an overview of the development and function of zebrafish interrenal gland, and reviews its contribution to basic and translational research. By analyzing various genes and chemicals affecting steroidogenesis, it reveals the value of zebrafish in steroid biosynthesis research.
MOLECULAR AND CELLULAR ENDOCRINOLOGY
(2021)
Article
Physiology
Vi Pham, Joshua G. Pemberton, John P. Chang, Ayelen Melisa Blanco, Atefeh Nasri, Suraj Unniappan
Summary: This study provides evidence that nesfatin-1 is a stress responsive peptide which modulates stress axis hormones in fish. It was found that nesfatin-1 affects cortisol release, ACTH secretion, and mRNA levels of CRF in various tissues of goldfish under stress conditions. The presence of nucb2/nesfatin-1-like immunoreactivity in the hypothalamus, pituitary, and interrenal cells points to the potential role of nesfatin-1 in regulating the HPI axis.
AMERICAN JOURNAL OF PHYSIOLOGY-REGULATORY INTEGRATIVE AND COMPARATIVE PHYSIOLOGY
(2021)
Article
Endocrinology & Metabolism
Shengchi Shi, Tingting Shu, Xi Li, Qiyong Lou, Xia Jin, Jiangyan He, Zhan Yin, Gang Zhai
Summary: The roles of Cyp17a2 in fish, particularly in sexual traits development and HPI axis, are poorly understood. We generated and analyzed cyp17a2-null zebrafish to investigate its functions. Our findings demonstrate that Cyp17a2 is essential for the synthesis and physiology of cortisol, and its deficiency results in altered hormone levels and over-activated oocytes.
FRONTIERS IN ENDOCRINOLOGY
(2022)
Article
Fisheries
Mariano Dara, Maria Dioguardi, Mirella Vazzana, Irene Vazzana, Pierluigi Carbonara, Sebastien Alfonso, Matteo Cammarata
Summary: This study investigated the role of spatial exploration and territoriality in gilthead seabream, and found that time is important in forming social organization while territoriality is related to immune response.
Article
Behavioral Sciences
Agnieszka Magierecka, Asa J. Lind, Antreas Aristeidou, Katherine A. Sloman, Neil B. Metcalfe
Summary: Animals exposed to chronic stress may exhibit altered patterns of hormone synthesis and behavior, but the exact effects of chronically stressful environments are not well understood. In this study, three-spined sticklebacks exposed to an unpredictable chronic stress protocol showed a decline in latency to feed during resting periods and an increase in activity levels during the presentation of stressors. This suggests there may be a trade-off between energy-demanding activities in fish subjected to a chronically unpredictable environment.
Article
Environmental Sciences
Asok K. Dasmahapatra, Paul B. Tchounwou
Summary: Graphene oxide (GO), due to its unique physicochemical properties and wide applications, is widely present in the aquatic ecosystem. This study investigated the endocrine disrupting effects of GO on the interrenal gland (IRG) of medaka fish. The results showed inconsistent changes in the nuclei and cell population of IRG after exposure to GO, depending on the exposure route, sex, and age of the fish.
ENVIRONMENTAL TOXICOLOGY
(2022)
Review
Biology
Daniel Redhead, Eleanor A. Power
Summary: Social hierarchies across species are often governed by dominance relations, but in human society, social hierarchies can take different forms and are not necessarily based on dominance relations. The dynamic interplay between individual-level and meso-level properties of social networks is crucial for understanding status differentiation across groups.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Article
Physiology
A. J. Hare, A. M. Zimmer, R. LePabic, A. L. Morgan, K. M. Gilmour
Summary: The hypothalamic-pituitary-interrenal axis in fishes plays dual roles in mobilizing energy and maintaining ionic/osmotic balance. Exposure to stress during early development can alter ion balance later in life, particularly affecting survival, growth, cortisol responses, and ion concentrations. The critical window for stress response to influence development appears to be around 7 days post-fertilization.
JOURNAL OF COMPARATIVE PHYSIOLOGY B-BIOCHEMICAL SYSTEMS AND ENVIRONMENTAL PHYSIOLOGY
(2021)
Article
Agriculture, Dairy & Animal Science
Jeongwon Lee, Dong Hyun Kim, Se Jin Park, Hoon Ryu Jong, Ji Wook Jung, You-Jin Jeon, Sang-Rul Park, Gi-Young Kim, Seungheon Lee
Summary: The study demonstrates that the water extract of Tenebrio molitor larvae has significant antistress effects on fish, restoring anxiety-like behaviors under stress and preventing the increase in whole-body cortisol levels. The mechanism of action may be related to its positive effects on cortisol release.
APPLIED ANIMAL BEHAVIOUR SCIENCE
(2021)
Review
Biology
T. M. Milewski, W. Lee, F. A. Champagne, J. P. Curley
Summary: Individuals in dominant and subordinate positions in social hierarchies exhibit different behaviors, physiology, and neural functioning. Dominant animals display higher levels of dominance behaviors and reproductive behaviors, while subordinate animals inhibit these behaviors and adapt to socially stressful contexts. These changes may have short-term benefits but pose long-term challenges to health. Additionally, rapid changes in social ranks are associated with dynamic modulations in the brain and periphery.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Article
Agriculture, Dairy & Animal Science
Franziska Kessler, Angelika Gruempel-Schlueter, Christian Looft, Stefanie Petow
Summary: This study compared the effect of different housing conditions (single cages and floor pens) on the morphology of the adrenal gland in laying hens. The results showed that hens in floor pens had higher body weight, a slightly higher adrenal-interrenal ratio, indicating a potential chronic stress condition.
Article
Neurosciences
Stefan Schulreich, Anita Tusche, Philipp Kanske, Lars Schwabe
Summary: This study investigates the impact of stress on altruistic decision-making and the underlying neurocognitive mechanisms. The findings suggest that the stress hormone cortisol modulates mentalizing-related processes, leading to a decrease in altruism.
JOURNAL OF NEUROSCIENCE
(2022)
Review
Biology
Elizabeth A. Tibbetts, Juanita Pardo-Sanchez, Chloe Weise
Summary: Animal groups are often organized hierarchically, with dominant individuals gaining priority access to resources and reproduction over subordinate individuals. This review explores the behaviors used to establish and maintain dominance hierarchies in different taxa and societies, while considering the interaction of self-organizing behavioral dynamics with other factors. Opportunities for future research include examining the stability of social hierarchies and the coevolution of cognition and behaviors in relation to dominance hierarchies.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Article
Behavioral Sciences
Aaryn Mustoe
Summary: Callitrichid primates are characterized by their high levels of sociality, behavioral flexibility, and single-female dominant hierarchies. Dominant, breeding individuals engage in reproductive suppression of subordinates through increased offspring production, higher ovulatory hormone levels, and greater sociosexual opportunities. The extent of reproductive suppression varies based on social stability and group composition. Dominant males also induce reproductive suppression in subordinate males, but to a lesser extent than females. Callitrichids exhibit an absence of intersexual dominance, likely to maintain breeding pairs and social cooperation. Further research is needed to understand the neuroendocrine mechanisms underlying sex differences in callitrichid behavior and its implications for overall health and wellbeing.
HORMONES AND BEHAVIOR
(2023)
Article
Nutrition & Dietetics
Anna Ziomkiewicz, Anna Apanasewicz, Dariusz P. Danel, Magdalena Babiszewska, Magdalena Piosek, Magdalena Orczyk-Pawilowicz
Summary: The study found that maternal anxiety was negatively associated with levels of lactoferrin and SIgA in breast milk, while social support was positively associated with milk IgG.
Article
Fisheries
Paulo Henrique de Mello, Licia Maria Lundstedt, Gilberto Moraes, Bruno Cavalheiro Araujo, Rossana Luiza Leite Venturieri, Renata Guimaraes Moreira
Summary: The development of the digestive system and digestive proteases was studied in cachara and its hybrid during the first 25 days after fertilization, showing a fast and similar development. The unspecific alkaline protease profile suggested the higher digestive capacity of hybrid larvae. The activities of trypsin and chymotrypsin were similar and observed since the oocyte, indicating similar digestive capacity between cachara and its hybrid.
JOURNAL OF FISH BIOLOGY
(2021)
Article
Ecology
Bianca de Sousa Rangel, Neil Hammerschlag, James A. Sulikowski, Renata Guimaraes Moreira
Summary: This study investigated the nutritional status and trophic dynamics of female tiger sharks across different life stages using non-lethal methods. Results showed that female tiger sharks adjusted their diet and fatty acid metabolism depending on their reproductive context, suggesting changes in their nutritional requirements associated with reproductive state. These findings provide insights into the expected changes in nutritional and trophic markers across life stages of female tiger sharks.
MARINE ECOLOGY PROGRESS SERIES
(2021)
Article
Fisheries
Victor H. Marques, Renata G. Moreira, Giovana S. Branco, Renato M. Honji, Artur N. Rombenso, Maria Teresa Viana, Paulo H. de Mello, Jose A. Mata-Sotres, Bruno C. Araujo
Summary: The study found that alternative lipid sources rich in saturated and monounsaturated fatty acids can be used in cobia aquafeeds when supplemented with long-chain polyunsaturated fatty acids without impairing production performance. High levels of saturated fatty acids were disproportionally deposited in the liver and muscle, while monounsaturated fatty acids were mainly deposited in the liver and muscle.
Article
Fisheries
Gabriela Brambila-Souza, Constantinos Chrysanthos Mylonas, Paulo Henrique de Mello, Rafael Yutaka Kuradomi, Sergio Ricardo Batlouni, Carlos Eduardo Tolussi, Renata Guimaraes Moreira
Summary: The study evaluated the impact of gonadotropin in controlled-release implants and temperature manipulation on the reproduction of Astyanax altiparanae during the non-breeding season. Results showed that high temperature and GnRHa implants increased the expression of sex hormone genes in females, promoting ovarian development and follicle maturation. The combination of high temperature and GnRHa may have a positive effect on the reproduction of Astyanax altiparanae.
AQUACULTURE RESEARCH
(2021)
Article
Ecology
Kaina Rocha Cabrera Fagundes, Renato Massaaki Honji, Maria Carmen Escalante-Rojas, Carlos Eduardo de Oliveira Garcia, Renata Guimaraes Moreira
Summary: The study revealed that the tripletail Lobotes surinamensis reproduces during the spring and summer in Paraty Bay, as indicated by gonadal development and plasma levels of E-2 in females, and 11-KT in males. However, the gene expression levels of FSH beta in males and gonadotropins in females were not useful physiological tools for determining the reproductive season.
ENVIRONMENTAL BIOLOGY OF FISHES
(2021)
Article
Biochemistry & Molecular Biology
Daniela Irina Perez-Sirkin, Maria Paula Di Yorio, Tomas Horacio Delgadin, Renato Massaaki Honji, Renata Guimaraes Moreira, Gustavo Manuel Somoza, Paula Gabriela Vissio
Summary: The study found that female reproductive axis in C. dimerus was not affected by long-term food deprivation, while in males, food restriction had a stimulatory effect on the reproductive axis, promoting sperm development and increasing follicle stimulating hormone expression. Despite negative effects seen in other fish species, C. dimerus appears to prioritize gonadal development during periods of food deprivation.
FISH PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Environmental Sciences
Bianca de Sousa Rangel, Neil Hammerschlag, Renata Guimaraes Moreira
Summary: The field of marine urban ecology is a growing area of research. This study investigated the influence of urbanization on the dietary patterns and nutritional quality of nurse sharks, finding that urban sharks had lower nutritional quality than non-urban sharks, which may have long-term consequences on their health and growth.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Aline Dal'Olio Gomes, Fernando Ribeiro Gomes, Bjorn Guecker, Carlos Eduardo Tolussi, Cleber Cunha Figueredo, Iola Goncalves Boechat, Lidia Sumile Maruyama, Lucas Chagas Oliveira, Marcela Munoz-Penuela, Marcelo Luiz Martins Pompeo, Rayssa de Lima Cardoso, Victor Hugo Marques, Renata Guimaraes Moreira
Summary: Eutrophication affects phytoplankton composition and fatty acid profiles, with highly eutrophic sites dominated by cyanobacteria having higher SFA and lower PUFA content, while sites with higher phytoplankton diversity show higher levels of C18 and HUFAs. However, the fatty acid profiles of seston did not significantly impact the fatty acid profiles of muscle tissue in the studied fish species, suggesting a lack of direct relationship between eutrophication and n3 HUFAs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Bianca de Sousa Rangel, Renata Guimaraes Moreira, Yuri Vieira Niella, James A. Sulikowski, Neil Hammerschlag
Summary: This study compared metabolic hormones and plasma fatty acids in juvenile female tiger sharks sampled in two areas of the subtropical north Atlantic with different levels of coastal urbanization. The results showed higher corticosteroid levels in sharks sampled in the more urbanized area, but no differences in thyroid hormone concentrations. Additionally, sharks from the more urbanized area had higher percentages of omega-3 polyunsaturated fatty acids, while those from the less urbanized area had higher percentages of bacterial markers.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Biochemistry & Molecular Biology
Cristiele da Silva Ribeiro, Matthias Schreiner, Carlos Arturo Navas Iannini, Aline Dal'Olio Gomes, Carlos Eduardo Tolussi, Renata Guimaraes Moreira
Summary: Structural modifications in gill membranes of the neotropical reophilic catfish are significantly influenced by temperature changes, with adjustments in phospholipid fatty acids and sodium pump activity. Lower temperatures lead to changes in fatty acid composition and potential increase in mortality rates in these fish species.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
David Aciole Barbosa, Bruno C. Araujo, Giovana Souza Branco, Alexandre S. Simeone, Alexandre W. S. Hilsdorf, Daniela L. Jabes, Luiz R. Nunes, Renata G. Moreira, Fabiano B. Menegidio
Summary: This study reports the first de novo transcriptome assembly of cobia liver, improving the availability of novel gene sequences for this potential aquaculture species. Through Illumina sequencing and filtering, a large number of high-quality reads were obtained, identifying numerous putative coding sequences and functionally annotated genes that can aid in future nutrigenomics and breeding programs.
MARINE BIOTECHNOLOGY
(2022)
Article
Fisheries
Renato Massaaki Honji, Bruno Cavalheiro Araujo, Danilo Caneppele, Fabiana Laura Lo Nostro, Renata Guimaraes Moreira
Summary: In order to characterize the female reproductive biology of the endangered species Steindachneridion parahybae in captivity, the authors measured the concentration of gonadal steroids and the development of oocytes during the reproductive cycle and after artificial induced spawning. They identified three stages of gonadal maturation and different stages of germ cells. The study also found that hormone manipulation can facilitate the reproduction of this species in captivity.
JOURNAL OF FISH BIOLOGY
(2022)
Article
Agriculture, Dairy & Animal Science
Paulo H. de Mello, Bruno C. Araujo, Victor H. Marques, Giovana S. Branco, Renato M. Honji, Renata G. Moreira, Artur N. Rombenso, Maria C. Portella
Summary: This study investigated the effects of different lipid classes on the physiological and morphological responses of dusky groupers. The results showed that including different lipid classes in the diet can improve fish fillet quality. Additionally, the study found that DHA and EPA have an impact on the morphophysiology of dusky grouper juveniles, providing valuable insights for establishing this fish species as a produced species worldwide.
Article
Agriculture, Dairy & Animal Science
Ethiene Fernandes de Oliveira, Bruno Cavalheiro Araujo, Victor Hugo Marques, Paulo Henrique de Mello, Renata Guimaraes Moreira, Renato Massaaki Honji
Summary: An 8-week trial was conducted to investigate the effects of DHA/EPA ratios and temperature on the fatty acid metabolism and liver morphology of Epinephelus marginatus. The study found that the DHA/EPA ratio did not affect the performance of the fish, but the animals fed with a higher DHA diet showed better growth at higher temperatures. Temperature influenced lipid deposition in the liver, and triacylglycerol levels reflected the diet composition. Temperature also affected the fatty acid composition in the eyes.
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)