Effect of estrogens on apoptosis in the pituitary of viscachas (Lagostomus maximus maximus)
This study aims to investigate the influence of estrogens, through the expression of their specific receptors, on the apoptosis of PD cells in relation to sexual maturity, the reproductive cycle, and pregnancy in a seasonal reproductive rodent (Lagostomus maximus maximus). ERα and caspase-3-cleaved (CASP3c) immunoreactive (-ir) cells were identified through immunohistochemistry. Apoptotic cells were detected using the TUNEL technique, with quantitative analysis facilitated by image analysis software, alongside measurement of serum estradiol levels using radioimmunoassay The immunostaining pattern for ERα included nuclear...
Source: Zoology - May 18, 2024 Category: Zoology Authors: Gabriela Judith Rosales Ver ónica Palmira Filippa Fabian Heber Mohamed Source Type: research
Ontogenetic transition from aquatic to amphibious life in the mudskipper, Periophthalmus modestus
This study reports on the ontogenetic transition from water to land of the mudskipper Periophthalmus modestus under laboratory conditions. After about 30 days after hatching (dah), the fish gradually changed their preference from water to an artificial shore and then to land. After about five days of periodic volitional emersion, the fish became able to propel themselves on land using the pectoral fins and after a further 13 days they began feeding on land. During the transition, the head morphology altered to suit for terrestrial existence. Tissue contents of triiodothyronine (T3) and thyroxine (T4) sharply increased at 3...
Source: Zoology - May 15, 2024 Category: Zoology Authors: Shoichi Inaba Masatomo Tagawa Yuzuru Utsunomiya Atsushi Ishimatsu Source Type: research
Ontogenetic transition from aquatic to amphibious life in the mudskipper, Periophthalmus modestus
This study reports on the ontogenetic transition from water to land of the mudskipper Periophthalmus modestus under laboratory conditions. After about 30 days after hatching (dah), the fish gradually changed their preference from water to an artificial shore and then to land. After about five days of periodic volitional emersion, the fish became able to propel themselves on land using the pectoral fins and after a further 13 days they began feeding on land. During the transition, the head morphology altered to suit for terrestrial existence. Tissue contents of triiodothyronine (T3) and thyroxine (T4) sharply increased at 3...
Source: Zoology - May 15, 2024 Category: Zoology Authors: Shoichi Inaba Masatomo Tagawa Yuzuru Utsunomiya Atsushi Ishimatsu Source Type: research
Ontogenetic transition from aquatic to amphibious life in the mudskipper, Periophthalmus modestus
This study reports on the ontogenetic transition from water to land of the mudskipper Periophthalmus modestus under laboratory conditions. After about 30 days after hatching (dah), the fish gradually changed their preference from water to an artificial shore and then to land. After about five days of periodic volitional emersion, the fish became able to propel themselves on land using the pectoral fins and after a further 13 days they began feeding on land. During the transition, the head morphology altered to suit for terrestrial existence. Tissue contents of triiodothyronine (T3) and thyroxine (T4) sharply increased at 3...
Source: Zoology - May 15, 2024 Category: Zoology Authors: Shoichi Inaba Masatomo Tagawa Yuzuru Utsunomiya Atsushi Ishimatsu Source Type: research
Epidermal club cells in the cardinal tetra (Paracheirodon axelrodi): Presence, distribution, and relationship to antipredator behavior
Zoology (Jena). 2024 Apr 26;164:126170. doi: 10.1016/j.zool.2024.126170. Online ahead of print.ABSTRACTEpidermal club cells (ECCs) are present in many species of teleost fish. In an attempt to justify their presence in the epidermis of fish, they have been associated with numerous functions. One proposed function is communication with conspecifics during a predation event, as these cells may passively release substances upon rupture, which may occur during predation. We identified the presence and distribution of ECCs in the body skin of adult cardinal tetra, Paracheirodon axelrodi (Schultz, 1956) and analyzed the animal's...
Source: Zoology - May 3, 2024 Category: Zoology Authors: Jazm ín Goodall Laura Rinc ón-Camacho Andrea Gabriela Pozzi Source Type: research
Epidermal club cells in the cardinal tetra (Paracheirodon axelrodi): Presence, distribution, and relationship to antipredator behavior
Zoology (Jena). 2024 Apr 26;164:126170. doi: 10.1016/j.zool.2024.126170. Online ahead of print.ABSTRACTEpidermal club cells (ECCs) are present in many species of teleost fish. In an attempt to justify their presence in the epidermis of fish, they have been associated with numerous functions. One proposed function is communication with conspecifics during a predation event, as these cells may passively release substances upon rupture, which may occur during predation. We identified the presence and distribution of ECCs in the body skin of adult cardinal tetra, Paracheirodon axelrodi (Schultz, 1956) and analyzed the animal's...
Source: Zoology - May 3, 2024 Category: Zoology Authors: Jazm ín Goodall Laura Rinc ón-Camacho Andrea Gabriela Pozzi Source Type: research
Epidermal club cells in the cardinal tetra (Paracheirodon axelrodi): Presence, distribution, and relationship to antipredator behavior
Zoology (Jena). 2024 Apr 26;164:126170. doi: 10.1016/j.zool.2024.126170. Online ahead of print.ABSTRACTEpidermal club cells (ECCs) are present in many species of teleost fish. In an attempt to justify their presence in the epidermis of fish, they have been associated with numerous functions. One proposed function is communication with conspecifics during a predation event, as these cells may passively release substances upon rupture, which may occur during predation. We identified the presence and distribution of ECCs in the body skin of adult cardinal tetra, Paracheirodon axelrodi (Schultz, 1956) and analyzed the animal's...
Source: Zoology - May 3, 2024 Category: Zoology Authors: Jazm ín Goodall Laura Rinc ón-Camacho Andrea Gabriela Pozzi Source Type: research
Epidermal club cells in the cardinal tetra (Paracheirodon axelrodi): Presence, distribution, and relationship to antipredator behavior
Zoology (Jena). 2024 Apr 26;164:126170. doi: 10.1016/j.zool.2024.126170. Online ahead of print.ABSTRACTEpidermal club cells (ECCs) are present in many species of teleost fish. In an attempt to justify their presence in the epidermis of fish, they have been associated with numerous functions. One proposed function is communication with conspecifics during a predation event, as these cells may passively release substances upon rupture, which may occur during predation. We identified the presence and distribution of ECCs in the body skin of adult cardinal tetra, Paracheirodon axelrodi (Schultz, 1956) and analyzed the animal's...
Source: Zoology - May 3, 2024 Category: Zoology Authors: Jazm ín Goodall Laura Rinc ón-Camacho Andrea Gabriela Pozzi Source Type: research
Epidermal club cells in the cardinal tetra (Paracheirodon axelrodi): Presence, distribution, and relationship to antipredator behavior
Zoology (Jena). 2024 Apr 26;164:126170. doi: 10.1016/j.zool.2024.126170. Online ahead of print.ABSTRACTEpidermal club cells (ECCs) are present in many species of teleost fish. In an attempt to justify their presence in the epidermis of fish, they have been associated with numerous functions. One proposed function is communication with conspecifics during a predation event, as these cells may passively release substances upon rupture, which may occur during predation. We identified the presence and distribution of ECCs in the body skin of adult cardinal tetra, Paracheirodon axelrodi (Schultz, 1956) and analyzed the animal's...
Source: Zoology - May 3, 2024 Category: Zoology Authors: Jazm ín Goodall Laura Rinc ón-Camacho Andrea Gabriela Pozzi Source Type: research
Epidermal club cells in the cardinal tetra (Paracheirodon axelrodi): Presence, distribution, and relationship to antipredator behavior
Zoology (Jena). 2024 Apr 26;164:126170. doi: 10.1016/j.zool.2024.126170. Online ahead of print.ABSTRACTEpidermal club cells (ECCs) are present in many species of teleost fish. In an attempt to justify their presence in the epidermis of fish, they have been associated with numerous functions. One proposed function is communication with conspecifics during a predation event, as these cells may passively release substances upon rupture, which may occur during predation. We identified the presence and distribution of ECCs in the body skin of adult cardinal tetra, Paracheirodon axelrodi (Schultz, 1956) and analyzed the animal's...
Source: Zoology - May 3, 2024 Category: Zoology Authors: Jazm ín Goodall Laura Rinc ón-Camacho Andrea Gabriela Pozzi Source Type: research
Epidermal club cells in the cardinal tetra (Paracheirodon axelrodi): Presence, distribution, and relationship to antipredator behavior
Zoology (Jena). 2024 Apr 26;164:126170. doi: 10.1016/j.zool.2024.126170. Online ahead of print.ABSTRACTEpidermal club cells (ECCs) are present in many species of teleost fish. In an attempt to justify their presence in the epidermis of fish, they have been associated with numerous functions. One proposed function is communication with conspecifics during a predation event, as these cells may passively release substances upon rupture, which may occur during predation. We identified the presence and distribution of ECCs in the body skin of adult cardinal tetra, Paracheirodon axelrodi (Schultz, 1956) and analyzed the animal's...
Source: Zoology - May 3, 2024 Category: Zoology Authors: Jazm ín Goodall Laura Rinc ón-Camacho Andrea Gabriela Pozzi Source Type: research
Epidermal club cells in the cardinal tetra (Paracheirodon axelrodi): Presence, distribution, and relationship to antipredator behavior
Zoology (Jena). 2024 Apr 26;164:126170. doi: 10.1016/j.zool.2024.126170. Online ahead of print.ABSTRACTEpidermal club cells (ECCs) are present in many species of teleost fish. In an attempt to justify their presence in the epidermis of fish, they have been associated with numerous functions. One proposed function is communication with conspecifics during a predation event, as these cells may passively release substances upon rupture, which may occur during predation. We identified the presence and distribution of ECCs in the body skin of adult cardinal tetra, Paracheirodon axelrodi (Schultz, 1956) and analyzed the animal's...
Source: Zoology - May 3, 2024 Category: Zoology Authors: Jazm ín Goodall Laura Rinc ón-Camacho Andrea Gabriela Pozzi Source Type: research
Multi-gene phylogeny of the primary freshwater crab genus Ptychophallus Smalley, 1964 (Pseudothelphusidae: Ptychophallinae) from the Neotropical region
Zoology (Jena). 2024 Apr 21;164:126169. doi: 10.1016/j.zool.2024.126169. Online ahead of print.ABSTRACTThe diversity of primary freshwater crabs of Central America is underestimated and poorly known, specially when considering both Atlantic and Pacific drainages distribution. Among the family Pseudothelphusidae Ortmann, 1893, the genus Ptychophallus Smalley, 1964 was recently revised using morphological data and encompassing 14 valid species, which are distributed exclusively in Costa Rica and Panama. Despite the informative scenario constructed with this previous study, some uncertainties remained such as those related to...
Source: Zoology - April 28, 2024 Category: Zoology Authors: Fernando L Mantelatto C élio Magalhães Edvanda A Souza-Carvalho Jo ão A F Pantaleão Ingo S Wehrtmann Source Type: research
Multi-gene phylogeny of the primary freshwater crab genus Ptychophallus Smalley, 1964 (Pseudothelphusidae: Ptychophallinae) from the Neotropical region
Zoology (Jena). 2024 Apr 21;164:126169. doi: 10.1016/j.zool.2024.126169. Online ahead of print.ABSTRACTThe diversity of primary freshwater crabs of Central America is underestimated and poorly known, specially when considering both Atlantic and Pacific drainages distribution. Among the family Pseudothelphusidae Ortmann, 1893, the genus Ptychophallus Smalley, 1964 was recently revised using morphological data and encompassing 14 valid species, which are distributed exclusively in Costa Rica and Panama. Despite the informative scenario constructed with this previous study, some uncertainties remained such as those related to...
Source: Zoology - April 28, 2024 Category: Zoology Authors: Fernando L Mantelatto C élio Magalhães Edvanda A Souza-Carvalho Jo ão A F Pantaleão Ingo S Wehrtmann Source Type: research
Multi-gene phylogeny of the primary freshwater crab genus Ptychophallus Smalley, 1964 (Pseudothelphusidae: Ptychophallinae) from the Neotropical region
Zoology (Jena). 2024 Apr 21;164:126169. doi: 10.1016/j.zool.2024.126169. Online ahead of print.ABSTRACTThe diversity of primary freshwater crabs of Central America is underestimated and poorly known, specially when considering both Atlantic and Pacific drainages distribution. Among the family Pseudothelphusidae Ortmann, 1893, the genus Ptychophallus Smalley, 1964 was recently revised using morphological data and encompassing 14 valid species, which are distributed exclusively in Costa Rica and Panama. Despite the informative scenario constructed with this previous study, some uncertainties remained such as those related to...
Source: Zoology - April 28, 2024 Category: Zoology Authors: Fernando L Mantelatto C élio Magalhães Edvanda A Souza-Carvalho Jo ão A F Pantaleão Ingo S Wehrtmann Source Type: research
