Results 91 to 100 of about 49,434 (297)

EE2 and the Fish Brain: Age‐Dependent Impact of 17α‐Ethinylestradiol on Brain Cell Proliferation and Behavior in Sea Bass Larvae

Environmental Toxicology, EarlyView.
ABSTRACT Endocrine‐disrupting chemicals (EDCs), such as 17α‐ethinylestradiol (EE2), have raised concerns about their potential effects on aquatic organisms, particularly during early developmental stages. In this context, the study of behavioral disruption has gained considerable attention, as it may have consequences on individual fitness and ...
Soloperto Sofia, Stephanie Olivier, Céline Thomasse, Christophe Minier, Marie‐Pierre Halm‐Lemeille, Christelle Jozet‐Alves, Salima Aroua   +6 more
wiley   +1 more source

Evidence for a divergence in function between two glucocorticoid receptors from a basal teleost [PDF]

, 2012
Background: Duplicated glucocorticoid receptors (GR) are present in most teleost fish. The evolutionary advantage of retaining two GRs is unclear, as no subtype specific functional traits or physiological roles have been defined.
Cunningham, Phil, Phil Cunningham, Sturm, Armin, Bury, Nicholas R, Armin Sturm, Bury, Nicholas, Nicolas R Bury, Cunningham, Philip, Yi Li, Li, Yi   +9 more
core   +1 more source

From Consumer Plastics to Aquatic Toxicants: Oxidative and Endocrine Effects of Microplastics on Fathead Minnow (Pimephales promelas) Larvae

Environmental Toxicology, EarlyView.
ABSTRACT Secondary microplastics (MPs) from single‐use consumer products are rapidly becoming one of the most persistent and widespread pollutants of our time. Freshwater systems act as early sinks for MPs where fragmentation and additive leaching expose aquatic life to a broad spectrum of toxic compounds.
Alisha M. Janiga‐MacNelly, Andrew Barrick, Tham C. Hoang, Ramon Lavado   +3 more
wiley   +1 more source

Sulfasalazine Enhances Copper Toxicity in Danio rerio Larvae: Divergent Protective Roles of Deferoxamine and Ferrostatin‐1

Environmental Toxicology, EarlyView.
ABSTRACT Copper is an environmental contaminant capable of disrupting redox homeostasis and impairing antioxidant defenses in aquatic organisms, thereby increasing susceptibility to oxidative stress. The cystine/glutamate antiporter (system xc−) plays a central role in maintaining intracellular glutathione (GSH) levels, a major antioxidant defense ...
Maria Vitória Takemura Mariano, Pedro Henrique Vicenzi, Vitor Oliveira de Rosso, Mauro Eugênio Medina Nunes, Layla da Silva Braga, Analía Del Valle Garnero, Ricardo José Gunski, Marcelo Farina, Thaís Posser, Jeferson Luis Franco   +9 more
wiley   +1 more source

Metrics, scales, and correlates of intraspecific variation in hypoxia tolerance in fishes

Frontiers in Fish Science
The extent of aquatic hypoxia (low dissolved oxygen) has increased in recent times and now threatens aquatic habitats worldwide. Here, we review intraspecific variation in hypoxia tolerance in fish on various scales: geographic variation among ...
Courtney H. Babin, Bernard B. Rees
doaj   +1 more source

Comparative Satellitomics in Arowanas (Telostei, Osteoglossiformes) Sheds Light on the Evolution of Ancient Satellite DNAs

Integrative Zoology, EarlyView.
This work focused on arowana fishes (Teleostei, Osteoglossiformes) as a model; their widespread intercontinental distribution and basal phylogenetic position within Teleostei make them a compelling model for evolutionary research, especially in the realm of satDNA molecular evolution. Through the integration of genomic and chromosomal data, we analyzed
Fernando Henrique Santos de Souza, Gustavo Akira Toma, Jhon Alex Dziechciarz Vidal, Manuel Angel Garrido‐Ramos, Guilherme Mota Souza, Rodrigo Zeni Dos Santos, Fábio Porto‐Foresti, Thomas Liehr, Ricardo Utsunomia, Marcelo de Bello Cioffi   +9 more
wiley   +1 more source

Hox Gene Variation Drives Morphological Specialization of Humpback Grouper Cromileptes altivelis

Integrative Zoology, EarlyView.
Cromileptes altivelis exhibits a distinctive “sunken head and humpback” morphology, formed through cranial remodeling. Genetic analyses identified unique amino acid variants in Hoxa7a and Hoxa10b, with functional tests confirming their role in enhancing osteoblast activity and driving cranial remodeling.
Xiaoying Cao, Zhaowei Zhong, Lisheng Wu, Quanyin Liu, Shaoxiong Ding   +4 more
wiley   +1 more source

Temperature-Mediated Processes in Teleost Immunity: Homeoviscous Adaptation in Teleost Lymphocytes

Experimental Biology and Medicine, 1982
AbstractIn vitro studies with pinfish (Lagodon rhomboides) lymphocytes demonstrated that the temperature to which a fish is acclimated in vivo affects the temperature dependence of lymphocyte responses to mitogenic stimulation with conconavalin A (ConA) in vitro, i.e., at an in vitro temperature of 20°, the lymphocytes of 17° acclimated fish responded ...
A F, Abruzzini, L O, Ingram, L W, Clem
openaire   +2 more sources

Genome Expansion of ZPB1(a) and ZPC1(a) in Basal Species or Liver Expression of ZPB1a and ZPC1aa in Advanced Species, Two Different Strategies to Ensure Sufficient ZP Synthesis in Teleosts

Integrative Zoology, EarlyView.
We found that teleosts employed two different strategies to ensure sufficient ZP (zona pellucida) synthesis: expansion of ZPB1(a) and ZPC1(a) in basal species or liver expression of ZPB1a and ZPC1aa in advanced species. The N‐terminus of expanded ZPB1(a) or ZPC1(a) and liver‐expressed ZPB1a contains repeated units or low‐complexity regions to form ...
Tian Gao, Suying Ma, Shiyi Zhang, Fan Bai, Lingyao Gan, Wenjing Tao, Feilong Wang, Deshou Wang, Lina Sun   +8 more
wiley   +1 more source

Cenozoic Tectonics Ignite Mitochondrial Codon Innovations Propelling Canid Body Size Evolution and Transcontinental Radiations

Integrative Zoology, EarlyView.
We decode mitochondrial genomes across all extant canids, revealing lineage‐specific codon optimization driven by altitude, predation, and body size. A tripartite framework integrates geological events, metabolic constraints, and adaptive radiation to explain carnivore evolution.
Xiaoyang Wu, Xibao Wang, Yongquan Shang, Yao Chen, Haotian Cai, Tian Xia, Qinguo Wei, Weilai Sha, Honghai Zhang   +8 more
wiley   +1 more source