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Pimentel PB, Ferraz JF, Santigo CS, Soares EM, Morielle-Versute E, Taboga SR, Souza CC, Beguelini MR. Comparative analysis of male reproductive accessory glands in bats Histiotus velatus (Vespertilionidae), Molossus rufus (Molossidae), and Peropteryx leucoptera (Emballonuridae). Anat Rec (Hoboken) 2022. [PMID: 36579698 DOI: 10.1002/ar.25145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/22/2022] [Accepted: 12/10/2022] [Indexed: 12/30/2022]
Abstract
Despite the high number of species and wide geographic dispersion, reproductive accessory glands (RAGs) of bats have traditionally received little attention in the literature, with some species not even having a basic description of their composition and structure. Thus, this study aimed to analyze and compare the composition, anatomy, and histology of male RAGs of bat species belonging to three of the largest (cosmopolitan) bat families: Vespertilionidae (Histiotus velatus), Molossidae (Molossus rufus), and Emballonuridae (Peropteryx leucoptera), in order to understand the variations in the bat RAGs. The results showed that the RAGs of H. velatus, M. rufus, and P. leucoptera are composed of an intra-abdominal prostatic complex, associated with the urethra, urethral glands, and a pair of inguinal bulbourethral glands; without ampullary glands or seminal vesicles. The prostatic complex can be composed of two (M. rufus and P. leucoptera) or three (H. velatus) prostatic regions, and can be compact (P. leucoptera), semi-lobed (M. rufus), or multilobed (H. velatus). Each prostatic region has unique and distinct characteristics, with the ventral region presenting a holocrine nature, exclusive to bats; while the dorsal and/or dorsolateral regions have similar characteristics to the ventral prostate of rats and to the human peripheral zone.
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Affiliation(s)
- Pollyana B Pimentel
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Juliana Filgueira Ferraz
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Cornélio Souza Santigo
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Emília Miguel Soares
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Eliana Morielle-Versute
- Department of Zoology and Botany, UNESP - University Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Sebastião R Taboga
- Department of Biology, UNESP - University Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Carolina C Souza
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Mateus R Beguelini
- Center of Biological and Health Science, UFOB - Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
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Ellerbrock RE, Podico G, Scoggin KE, Ball BA, Carossino M, Canisso IF. Steroidogenic Enzyme and Steroid Receptor Expression in the Equine Accessory Sex Glands. Animals (Basel) 2021; 11:2322. [PMID: 34438779 DOI: 10.3390/ani11082322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 07/31/2021] [Accepted: 08/05/2021] [Indexed: 11/17/2022] Open
Abstract
The expression pattern and distribution of sex steroid receptors and steroidogenic enzymes during development of the equine accessory sex glands has not previously been described. We hypothesized that equine steroidogenic enzyme and sex steroid receptor expression is dependent on reproductive status. Accessory sex glands were harvested from mature stallions, pre-pubertal colts, geldings, and fetuses. Expression of mRNA for estrogen receptor 1 (ESR1), estrogen receptor 2 (ESR2), androgen receptor (AR), 3β-Hydroxysteroid dehydrogenase/Δ5-4 isomerase (3βHSD), P450,17α hydroxylase, 17-20 lyase (CYP17), and aromatase (CYP19) were quantified by RT-PCR, and protein localization of AR, ER-α, ER-β, and 3βHSD were investigated by immunohistochemistry. Expression of AR, ESR2, CYP17, or CYP19 in the ampulla was not different across reproductive statuses (p > 0.1), while expression of ESR1 was higher in the ampulla of geldings and fetuses than those of stallions or colts (p < 0.05). AR, ESR1 and ESR2 expression were decreased in stallion vesicular glands compared to the fetus or gelding, while AR, ESR1, and CYP17 expression were decreased in the bulbourethral glands compared to other glands. ESR1 expression was increased in the prostate compared to the bulbourethral glands, and no differences were seen with CYP19 or 3β-HSD. In conclusion, sex steroid receptors are expressed in all equine male accessory sex glands in all stages of life, while the steroidogenic enzymes were weakly and variably expressed.
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Kutia SA, Radkovskij VA, Astafurov DD, I LA, Yarovaya OY. [Modern ideas about bulbourethral glands]. Urologiia 2021:128-134. [PMID: 33960172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Bulbourethral glands are the accessory glands of the male reproductive system, the leading function of which is associated with ejaculation and includes both the neutralization of the acidic urine residues and environment of the female vagina, and friction reduction during the sexual intercourse. These glands play the role of immune barrier for urogenital infections, and also synthesize important autocrine and paracrine factors for the male urogenital system development. Glands pathologies usually have a subclinical course, however they can also lead to the functional disorders of the human urogenital system. The list of the most common diseases include cuperitis and syringocele. Usually their duration is asymptomatic and they are nearly impossible to diagnose; as a consequence, it is quite difficult to evaluate the real incidence of morbidity and importance of the bulbourethral gland pathology. In recent years, the vast majority of the bulbourethral glands researches are dedicated to the features of X-ray diagnostics and pathology detection, as well as to the description of rare clinical cases. Authors have analyzed the various available scientific data in order to review of morphological, physiological and clinical aspects of the Cowpers glands.
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Affiliation(s)
- S A Kutia
- V.I. Vernadsky Crimean Federal University, Simferopol, Republic of Crimea, Russia
| | - V A Radkovskij
- V.I. Vernadsky Crimean Federal University, Simferopol, Republic of Crimea, Russia
| | - D D Astafurov
- V.I. Vernadsky Crimean Federal University, Simferopol, Republic of Crimea, Russia
| | - Lugin A I
- V.I. Vernadsky Crimean Federal University, Simferopol, Republic of Crimea, Russia
| | - O Ya Yarovaya
- V.I. Vernadsky Crimean Federal University, Simferopol, Republic of Crimea, Russia
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Abiaezute CN, Nwaogu IC, Igwebuike UM. Histology, ultrastructure, and seasonal variations in the bulbourethral gland of the African straw-colored fruit bat Eidolon helvum. J Morphol 2020; 281:1446-1455. [PMID: 32896971 DOI: 10.1002/jmor.21258] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 08/01/2020] [Accepted: 08/26/2020] [Indexed: 11/11/2022]
Abstract
We studied the morphological characteristics and seasonal changes of the bulbourethral gland of Eidolon helvum in a typical African tropical environment. Forty-eight bulbourethral glands were examined using gross anatomical, histological, histochemical, and ultrastructural techniques during the early rainy, late rainy, and peak dry seasons. The pear-shaped bilateral bulbourethral glands were located extra-abdominally in the inguinal region. Trabeculae from the capsule divided the parenchyma into numerous lobules of tubuloalveolar glandular acini. The mucosa was covered by a simple columnar epithelium consisting up of principal secretory cells, columnar dense cells and basal cells, which were progressively pronounced during the dry season. The principal cells contained eosinophilic granules, which were PAS positive while the dense cells did not show affinity for the stains. The mean gross weights, acini diameters, and epithelial heights were greater during the rainy season than the dry season. Ultrastructural evaluation showed that the cytoplasm of the principal cells contained well-developed Golgi complexes, rough endoplasmic reticulum, mitochondria, and secretory vesicles of varying electron densities and sizes. The secretory vesicles were numerous during the early rainy season, decreased during the late rainy season and were scanty during the peak dry season. The simple columnar epithelium observed during the rainy season was replaced by an undefined stratified epithelium during the dry season, and this was associated with cellular degenerations and regenerations. In conclusion, E. helvum has a typical mammalian bulbourethral gland, with a unique cell type, the dense cell whose functions are not well-understood. The gland exhibits cyclical seasonal variation in structure and secretory activity; being active during the early rainy season (breeding season), and showing the lowest activity during the dry season (non-breeding season). Glandular epithelial cell renewal occurs during the dry season in preparation for the next breeding season.
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Affiliation(s)
- Clifford Nwabugwu Abiaezute
- Department of Veterinary Anatomy, Faculty of Veterinary Medicine, University of Nigeria Nsukka, Enugu State, Nigeria
| | - Innocent Chima Nwaogu
- Department of Veterinary Anatomy, Faculty of Veterinary Medicine, University of Nigeria Nsukka, Enugu State, Nigeria
| | - Udensi Maduabuchi Igwebuike
- Department of Veterinary Anatomy, Faculty of Veterinary Medicine, University of Nigeria Nsukka, Enugu State, Nigeria
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Martínez-Marcos P, Carvajal-Serna M, Lázaro-Gaspar S, Pérez-Pé R, Muiño-Blanco T, Cebrián-Pérez JA, Casao A. Presence of melatonin-catabolizing non-specific enzymes myeloperoxidase and indoleamine 2,3-dioxygenase in the ram reproductive tract. Reprod Domest Anim 2019; 54:1643-1650. [PMID: 31587393 DOI: 10.1111/rda.13574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 09/30/2019] [Indexed: 11/27/2022]
Abstract
The melatonin catabolism is very complex and not completely understood. Melatonin can be metabolized by free radical interaction, but also pseudo-enzymatically or by enzymatic pathways. We have previously detected the existence of melatonin-synthesizing enzymes and melatonin receptors MT1 and MT2 in the ram reproductive tract; thus, in order to start to elucidate melatonin catabolism in these organs, we have investigated the presence of the melatonin-catabolizing enzymes indoleamine 2,3-dioxygenase (IDO, both IDO1 and IDO2 isoforms) and myeloperoxidase (MPO) in testis, epididymis and accessory glands. Gene expression analyses by real-time PCR showed the presence of MPO, IDO1 and IDO2 in all the organs of the ram reproductive tract and revealed that MPO is the main melatonin-catabolizing enzyme, which is mainly expressed in the testis and the bulbourethral glands (p < .05). These results were further corroborated by immunohistochemical staining, and by Western blot. Likewise, MPO was also evidenced in epididymal and ejaculated spermatozoa by indirect immunofluorescence and Western blot. In conclusion, melatonin-catabolizing enzymes MPO, IDO1 and IDO2 are expressed in the ram reproductive tract, and MPO is the most expressed one, mainly in the testis and the bulbourethral glands. The presented results warrant further studies on the function of these enzymes and their melatonin-metabolizing activity.
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Affiliation(s)
- Paula Martínez-Marcos
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - Melissa Carvajal-Serna
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain.,Departamento de Producción Animal, Facultad de Medicina Veterinaria y de Zootecnia, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Sofía Lázaro-Gaspar
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - Rosaura Pérez-Pé
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - Teresa Muiño-Blanco
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - José A Cebrián-Pérez
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - Adriana Casao
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
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Skonieczna J, Madej JP, Będziński R. Accessory Genital Glands in the New Zealand White Rabbit: A Morphometrical and Histological Study. J Vet Res 2019; 63:251-7. [PMID: 31276065 DOI: 10.2478/jvetres-2019-0028] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 05/27/2019] [Indexed: 11/30/2022] Open
Abstract
Introduction The aim of this research was to provide a detailed description of the morphology, topography, and histometry of rabbit accessory genital glands. Material and Methods Seven male New Zealand White rabbits, 3–4 months of age and weighing 2.1–3 kg were used for the study. The whole urethra from the urinary bladder to the external urethral orifice accompanied by accessory genital glands was sliced at intervals of 1 mm. The serial sections were prepared with haematoxylin-eosin (H&E) and Movat–Russell modified pentachrome stain. Results A detailed description of the morphology and morphometry was provided. The topography of the organs was explained on the basis of characteristic cross-sections on histological slides. The inconsistent nomenclature and descriptions of these glands by different authors were also discussed. Conclusion The morphometric analysis indicated that some of the glands described have similar dimensions in different individuals, while others like paraprostates revealed high diversity in the number of lobes, their size, and their structure. The accessory glands are also good topographic markers which precisely define the segment of the urethra. The terms “proprostate”, “prostate”, and “paraprostates” as the nomenclature of the prostate complex reflect the location of these glands well and indicate their common origin and function.
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Kutia SA, Sataeva TP, Nikolaeva NG, Printseva NY, Moroz GA. [The history of discovery of bulbourethral glands]. Urologiia 2016:108-111. [PMID: 28247640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The article outlines the chronology of the discovery of the bulbourethral glands. Their first image appeared in 1600 in a collection of anatomical tables by Italian anatomist Hieronymus Fabricius of Acquapendente. In the scientific literature, they were first mentioned in one of the editions of "Journal des scavans" in 1684 as discovered by the French surgeon Jean Mry. The first detailed description of the structure, topography and function of these glands was presented in the work of English physician and anatomist William Cowper in 1699.
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Affiliation(s)
- S A Kutia
- Department of Medical Biology, Medical Academy named after S.I. Georgievsky of V.I. Vernadsky Crimean Federal University, Simferopol
| | - T P Sataeva
- Department of Medical Biology, Medical Academy named after S.I. Georgievsky of V.I. Vernadsky Crimean Federal University, Simferopol
| | - N G Nikolaeva
- Department of Latin Language and Medical Terminology, Kazan State Medical University, Kazan
- Department of Russian Language and Applied Linguistics Kazan Federal University, Kazan
| | - N Yu Printseva
- Department of Foreign Languages 4, Institute of Foreign Philology, Taurida academy of V.I. Vernadsky Crimean Federal University
| | - G A Moroz
- Department of Physical Therapy and Sports Medicine, Physical Therapy with a Course of Physical Training, Medical Academy named after S.I. Georgievsky of V.I. Vernadsky Crimean Federal Universit
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Bhatia-Gaur R, Donjacour AA, Sciavolino PJ, Kim M, Desai N, Young P, Norton CR, Gridley T, Cardiff RD, Cunha GR, Abate-Shen C, Shen MM. Roles for Nkx3.1 in prostate development and cancer. Genes Dev 1999; 13:966-77. [PMID: 10215624 PMCID: PMC316645 DOI: 10.1101/gad.13.8.966] [Citation(s) in RCA: 455] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
In aging men, the prostate gland becomes hyperproliferative and displays a propensity toward carcinoma. Although this hyperproliferative process has been proposed to represent an inappropriate reactivation of an embryonic differentiation program, the regulatory genes responsible for normal prostate development and function are largely undefined. Here we show that the murine Nkx3.1 homeobox gene is the earliest known marker of prostate epithelium during embryogenesis and is subsequently expressed at all stages of prostate differentiation in vivo as well as in tissue recombinants. A null mutation for Nkx3.1 obtained by targeted gene disruption results in defects in prostate ductal morphogenesis and secretory protein production. Notably, Nkx3.1 mutant mice display prostatic epithelial hyperplasia and dysplasia that increases in severity with age. This epithelial hyperplasia and dysplasia also occurs in heterozygous mice, indicating haploinsufficiency for this phenotype. Because human NKX3.1 is known to map to a prostate cancer hot spot, we propose that NKX3.1 is a prostate-specific tumor suppressor gene and that loss of a single allele may predispose to prostate carcinogenesis. The Nkx3.1 mutant mice provide a unique animal model for examining the relationship between normal prostate differentiation and early stages of prostate carcinogenesis.
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Affiliation(s)
- R Bhatia-Gaur
- Center for Advanced Biotechnology and Medicine, University of Medicine and Dentistry of New Jersey (UMDNJ)-Robert Wood Johnson Medical School, Piscataway, New Jersey 08854 USA
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