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Ferraz JF, de Oliveira RS, Santiago CS, Soares EM, Morielle-Versute E, Taboga SR, Beguelini MR. The marked dextro-dominance causes accentuated morphophysiological variations in the female reproductive organs of the bat Molossus molossus. Tissue Cell 2023; 85:102245. [PMID: 37856937 DOI: 10.1016/j.tice.2023.102245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 09/21/2023] [Accepted: 10/13/2023] [Indexed: 10/21/2023]
Abstract
Molossus molossus is an insectivorous molossid bat that is important in the control of nocturnal insects. It is the nominal and the most representative species of the family. However, there are few studies about its reproduction. Thus, this study aimed to evaluate variations of its female reproductive organs during the different reproductive phases. Twenty adult females, divided into four sample groups (non-reproductive, early and advanced pregnancy and lactation), were submitted to morphological and morphometric analyses. Results show that the female reproductive system of M. molossus is composed of ovaries, a short bicornuate uterus, slightly convoluted uterine tubes and vagina. The system presents a distinct morphofunctional asymmetry, with a marked dextro-dominance. The right ovaries of all analyzed groups (NON, P1, P2, and LAC) showed follicles at different stages of development, a large number of interstitial glands and a small, but persistent corpus luteum. Ovulation is simple, unilateral and preferential, occurring exclusively in the right ovary. Follicular development in the left ovary usually does not pass the secondary stage. Implantation is fundic and preferential, occurring exclusively in the right uterine horn. The placenta is formed with two distinct chorioallantoic portions, one diffuse endotheliochorial, which covers the entire uterine cavity and regresses in the final stages of pregnancy, and the principal discoidal hemochorial portion, formed in the implantation site. The uterine cervix presents a pseudostratified epithelium, while the vagina has a little keratinized stratified epithelium, which does not accentually vary in the different reproductive stages, but can disrupt and shed in some cases.
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Affiliation(s)
- Juliana F Ferraz
- Center of Biological and Health Science, UFOB - Univ. Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Rodrigo S de Oliveira
- Center of Biological and Health Science, UFOB - Univ. Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Cornélio S Santiago
- Center of Biological and Health Science, UFOB - Univ. Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Emília M Soares
- Center of Biological and Health Science, UFOB - Univ. Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Eliana Morielle-Versute
- Department of Zoology and Botany, UNESP - Univ. Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Sebastião R Taboga
- Department of Biology, UNESP - Univ. Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Mateus R Beguelini
- Center of Biological and Health Science, UFOB - Univ. Federal do Oeste da Bahia, Barreiras, Bahia, Brazil.
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Hazard QCK, Sabino-Pinto J, López-Baucells A, Farneda FZ, Meyer CFJ, Rocha R. Reproductive phenologies of phyllostomid bats in the Central Amazon. Mamm Biol 2022. [DOI: 10.1007/s42991-022-00242-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Rivero-Monteagudo JA, Pellón JJ, Williams M. Environmental Seasonality Explains Reproductive Timing of Short-Tailed Fruit Bats in a Premontane Forest of Central Peru. ACTA CHIROPTEROLOGICA 2021. [DOI: 10.3161/15081109acc2021.23.1.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Jorge A. Rivero-Monteagudo
- Laboratorio de Fisiología Animal y Biorremediación Luis Basto Acosta, Universidad Nacional Agraria La Molina, Av. La Molina s/n, La Molina, 15024, Lima, Perú
| | - Juan J. Pellón
- Laboratorio de Fisiología Animal y Biorremediación Luis Basto Acosta, Universidad Nacional Agraria La Molina, Av. La Molina s/n, La Molina, 15024, Lima, Perú
| | - Marta Williams
- Laboratorio de Fisiología Animal y Biorremediación Luis Basto Acosta, Universidad Nacional Agraria La Molina, Av. La Molina s/n, La Molina, 15024, Lima, Perú
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de Lima Junior NB, Ferreira de Melo IM, da Silva FR, Antonio EA, de Aguiar Júnior FCA, dos Santos KRP, Teixeira VW, Teixeira ÁAC. Reproductive Stages and Ovarian Histophysiology in Artibeus planirostris (Chiroptera: Phyllostomidae) in the Dry and Rainy Months in a Municipality of the Mesoregion of the Mata Pernambucana, Northeastern Brazil. ACTA CHIROPTEROLOGICA 2021. [DOI: 10.3161/15081109acc2021.23.1.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Nivaldo B. de Lima Junior
- Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, 52171-900, Recife, PE, Brazil
| | - Ismaela M. Ferreira de Melo
- Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, 52171-900, Recife, PE, Brazil
| | - Fabricya R. da Silva
- Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, 52171-900, Recife, PE, Brazil
| | - Erivaldo A. Antonio
- Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, 52171-900, Recife, PE, Brazil
| | - Francisco C. A. de Aguiar Júnior
- Núcleo de Biologia, Centro Acadêmico de Vitória, Universidade Federal de Pernambuco, Rua Alto do Reservatório s/n, Bela Vista, 55608-680, Vitória de Santo Antão, PE, Brazil
| | - Katharine R. P. dos Santos
- Núcleo de Biologia, Centro Acadêmico de Vitória, Universidade Federal de Pernambuco, Rua Alto do Reservatório s/n, Bela Vista, 55608-680, Vitória de Santo Antão, PE, Brazil
| | - Valéria W. Teixeira
- Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, 52171-900, Recife, PE, Brazil
| | - Álvaro A. C. Teixeira
- Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, 52171-900, Recife, PE, Brazil
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Santiago CS, Albernaz ESS, Santos RTS, Guerra LHA, Santos FCA, Góes RM, Morielle-Versute E, Taboga SR, Beguelini MR. Evaluation of the uterine hormonal control of the bat Artibeus lituratus during the different phases of its reproductive cycle. J Morphol 2020; 281:302-315. [PMID: 31904879 DOI: 10.1002/jmor.21098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 12/03/2019] [Accepted: 12/22/2019] [Indexed: 12/24/2022]
Abstract
Artibeus lituratus is a frugivorous bat that directly assists in the restoration of degraded habitats through the effective dispersion of seeds and fruits. Given its great importance, this work aimed to evaluate the uterine hormonal control of A. lituratus during its different reproductive phases. The uteri of 30 sexually mature adult females, five specimens for each of the six sample groups (NON, nonreproductive; P1, initial pregnancy; P2, intermediate pregnancy; P3, advanced pregnancy; LAC, lactating; P + LAC, pregnant-lactating), were submitted to analyses of serum estradiol and progesterone concentrations, in addition to immunohistochemical analyses. Both estradiol and progesterone, gradually increased during pregnancy, with a marked significant increase in P3 females. Both returned to low levels in LAC-females; however, estradiol levels decreased further in P + LAC-females, while progesterone increased in the same group. In general, signs indicative of aromatase expression were observed in the endometrium of all analyzed groups and in the placenta of bats in the gestation groups. Similarly, ERα and PR were expressed in the myometrium, endometrium and placenta at varying levels of intensity. The results indicate that the uterine microenvironment of A. lituratus is directly regulated by serum concentrations of estradiol and progesterone, and fluctuations in these concentrations control morphological and physiological changes of this organ during different phases of the reproductive cycle. RESEARCH HIGHLIGHTS: Increases in serum concentrations of estradiol and progesterone coordinate the gestational period of A. lituratus. Estradiol activates ERα, stimulating cell proliferation in the uterus, in addition to activating the expression of PR, which trigger the quiescence of the myometrium and stimulation of the secretion and differentiation of the endometrium. Results showed several similarities to humans, indicating the use of A. lituratus as an animal model in reproductive studies.
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Affiliation(s)
- Cornélio S Santiago
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Edna S S Albernaz
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Renata T S Santos
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Luiz H A Guerra
- Department of Biology, UNESP - Univ. Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Fernanda C A Santos
- Department of Histology and Embryology, UFG - Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Rejane M Góes
- Department of Biology, UNESP - Univ. Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Eliana Morielle-Versute
- Department of Zoology and Botany, UNESP - Univ. Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Sebastião R Taboga
- Department of Biology, UNESP - Univ. Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Mateus R Beguelini
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
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