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Mohamed RH, Yousef NA, Awad M, Mohamed RS, Ali F, Hussein HA, Wehrend A. The relationship between ovarian hormones and mast cell distribution in the ovaries of dromedary camel (Camelus dromedaries) during the follicular wave. Vet World 2023; 16:309-316. [PMID: 37041993 PMCID: PMC10082722 DOI: 10.14202/vetworld.2023.309-316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 12/23/2022] [Indexed: 02/19/2023] Open
Abstract
Background and Aim: Mast cells (MCs) play an essential role in regulating tissue homeostasis through various non-allergic immune reactions. This study aimed to describe the salient features of MCs during different phases of the estrous cycle and evaluate the relationship between ovarian hormones and the presence of MCs in camel ovaries.
Materials and Methods: Genital tracts (n = 28) of healthy, non-pregnant camels were collected from a local slaughterhouse. The follicular wave stage was determined according to structures on the ovaries using an ultrasound device. Stages were classified as "growing" (n = 12, FØ = 0.3–0.8 cm), "mature" (n = 9, FØ = 0.9–2.2 cm), or "regression" phase (n = 7, FØ >2.5). Blood samples were collected at slaughter to determine serum estradiol-17β and progesterone levels using an immunoassay. Safranin-O, periodic acid/Schiff, alcian blue, or methylene blue stains were used to detect MCs.
Results: Follicular numbers at the growing, mature, and regression phases were determined to be 36, 14, and 7 follicles, respectively. Mast cells were widely but sparsely distributed within the ovarian tissue (9.3 MCs in the growing phase, 10.7 in the mature phase, and 7.0 in the regression phase). Typical histological features of MCs were observed in ovarian stromal tissue. Some MCs were found in the interstitial tissue, either near the follicular wall or the interstitial gland. Mast cells were present at a higher density during the mature phase than in the growing and regression phases in the ovarian matrix. A significantly reduced presence of MCs was found in the regression phase than in both the growing and mature phases (p < 0.05). A very strong positive correlation was observed between serum estradiol-17β concentrations and MC density in the ovaries (r = 0.9; p < 0.001). In addition, a strong negative correlation (r = –0.65; p = 0.03) was observed between the presence of MCs and serum progesterone concentrations.
Conclusion: These findings suggest that the follicular wave phase and the associated hormonal concentration induce changes in the number of MCs in the camel ovary.
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Affiliation(s)
- Ragab H. Mohamed
- Department of Theriogenology, Faculty of Veterinary Medicine, Aswan University, Tingar, Egypt
| | - Nasra A. Yousef
- Department of Theriogenology, Faculty of Veterinary Medicine, South Valley University, 83523 Qena, Egypt
| | - Mahmoud Awad
- Department of Histology, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt
| | - Rasha S. Mohamed
- Department of Animal Health, Animal and Poultry Production Division, Desert Research Center, Egypt
| | - Fatma Ali
- Department of Physiology, Faculty of Veterinary Medicine, Aswan University, Aswan, Egypt
| | - Hassan A. Hussein
- Department of Theriogenology, Faculty of Veterinary Medicine, Assiut University, 71526 Assiut, Egypt
| | - Axel Wehrend
- Clinic for Obstetrics, Gynaecology and Andrology of Large and Small Animals with Veterinary Ambulance, Justus Liebig University, Giessen, Germany
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Elieh Ali Komi D, Shafaghat F, Haidl G. Significance of mast cells in spermatogenesis, implantation, pregnancy, and abortion: Cross talk and molecular mechanisms. Am J Reprod Immunol 2020; 83:e13228. [PMID: 32053232 DOI: 10.1111/aji.13228] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 01/07/2020] [Accepted: 02/03/2020] [Indexed: 12/19/2022] Open
Abstract
Both subsets of MCs including MCTC (tryptase-positive, chymase-positive) and MCT (tryptase-positive, chymase-negative) are present in the testis and epididymis. Increased number of MCs, higher levels of MC-released tryptase in testis and seminal plasma of males with fertility problems, and promoting sperm motility in individuals with oligozoospermia after using MC blockers provide evidence that MCs may play a role in male infertility/subfertility disturbances. MC-released tryptase and histamine contribute to the fibrosis and may disrupt spermatogenesis. MCs not only influence the process of spermatogenesis but also have effects on the function of other testis-residing cells. MC-derived histamine may influence the steroidogenesis of Leydig cells by acting through H1R and H2R receptors. Additionally, the interaction between MC-released ATP and P2X receptors expressed on the peritubular cells may induce the production of the pro-inflammatory mediators by peritubular cells. Further investigations showed that MCs may be involved in the pathology of female infertility during implantation, pregnancy, and abortion. In the uterus, MCT subtype is abundant in myometrium and adjacent basal layer while MCTC subtype is distributed in all layers. MCs in response to hormones mainly estradiol and progesterone become activated and release a wide range of mediators including histamine, VEGF, proteases, and metalloproteinases (MMPs) that have a role in different stages of pregnancy. An increasing influx of MCs to the cervix during the pregnancy occurs that helps to the physiologic cervical ripening. While MMPs degrade the extracellular matrix (ECM), VEGF modulates neovascularization and histamine influences the embryo implantation. MC-derived histamine may have a positive effect during implantation due to its participation in tissue remodeling. MC proteases including tryptase and chymase activate the precursors of MMP2 and MMP9 to mediate ECM degradation during the physiologic menstrual cycle. There is a line of evidence that MCs have a role in abortion by releasing TNF-α.
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Affiliation(s)
- Daniel Elieh Ali Komi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Immunology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farzaneh Shafaghat
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Immunology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Gerhard Haidl
- Andrology Unit, Department of Dermatology and Allergy, University Hospital Bonn, Bonn, Germany
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Kyo S, Mizumoto Y, Takakura M, Nakamura M, Sato E, Katagiri H, Ishikawa M, Nakayama K, Fujiwara H. Nerve-sparing abdominal radical trachelectomy: a novel concept to preserve uterine branches of pelvic nerves. Eur J Obstet Gynecol Reprod Biol 2015. [PMID: 26196656 DOI: 10.1016/j.ejogrb.2015.06.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Nerve-sparing techniques to avoid bladder dysfunction in abdominal radical hysterectomy have been established during the past two decades, and they have been applied to radical trachelectomy. Although trachelectomy retains the uterine corpus, no report mentions the preservation of uterine branches of pelvic nerves. The aim of the present study was to introduce and discuss our unique concept for preserving them. STUDY DESIGN AND RESULTS Four cases with FIGO stage Ia2-Ib1 cervical cancer, in which preservation of uterine branches of the pelvic nerves was attempted, are presented. Operative procedures basically followed the previously reported standard approaches for nerve-sparing radical hysterectomy or trachelectomy, except for some points. Before resection of the sacrouterine ligament, the hypogastric nerve was first identified and translocated laterally. Subsequently, the uterine branches of the pelvic nerve were identified as a continuation of the hypogastric nerve and could be scooped with forceps by detachment of the surrounding connective tissues. Further detachment toward the uterine corpus enabled them to be completely separated from the cervix. This separation was extended up to the level of the junction of the upper and lower branches of the uterine artery. Thereafter, standard resection of the parametrium and paracolpium was performed, followed by cervical resection when it was confirmed that the isolated uterine branches of the pelvic nerves were safely translocated and preserved. There were no recurrences of cancer in these patients. CONCLUSIONS Uterine branches of autonomic nerves can be safely preserved, and the procedure may be considered one of the nerve-sparing techniques for radical abdominal trachelectomy, which may hopefully improve the reproductive outcomes of this operation, although it needs to be evaluated with more patients.
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Affiliation(s)
- Satoru Kyo
- Department of Obstetrics and Gynecology, Shimane University Faculty of Medicine, 89-1 Enyacho, Izumo, Shimane 693-8501, Japan.
| | - Yasunari Mizumoto
- Department of Obstetrics and Gynecology, Kanazawa University School of Medical Science, 13-1 Takaramachi, Kanazawa, Ishikawa 920-8641, Japan
| | - Masahiro Takakura
- Department of Obstetrics and Gynecology, Kanazawa University School of Medical Science, 13-1 Takaramachi, Kanazawa, Ishikawa 920-8641, Japan
| | - Mitsuhiro Nakamura
- Department of Obstetrics and Gynecology, Kanazawa University School of Medical Science, 13-1 Takaramachi, Kanazawa, Ishikawa 920-8641, Japan
| | - Emi Sato
- Department of Obstetrics and Gynecology, Shimane University Faculty of Medicine, 89-1 Enyacho, Izumo, Shimane 693-8501, Japan
| | - Hiroshi Katagiri
- Department of Obstetrics and Gynecology, Shimane University Faculty of Medicine, 89-1 Enyacho, Izumo, Shimane 693-8501, Japan
| | - Masako Ishikawa
- Department of Obstetrics and Gynecology, Shimane University Faculty of Medicine, 89-1 Enyacho, Izumo, Shimane 693-8501, Japan
| | - Kentaro Nakayama
- Department of Obstetrics and Gynecology, Shimane University Faculty of Medicine, 89-1 Enyacho, Izumo, Shimane 693-8501, Japan
| | - Hiroshi Fujiwara
- Department of Obstetrics and Gynecology, Kanazawa University School of Medical Science, 13-1 Takaramachi, Kanazawa, Ishikawa 920-8641, Japan
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Ning S, Wang Y, Yuan X, Wang S, Huang L. Effect of autonomic nerves on Dickkopf-3 expression in the uterus during early pregnancy of rats. ANIM BIOL 2015. [DOI: 10.1163/15707563-00002474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
To explore how uterine innervations affect expression of Dickkopf-3 (DKK-3) during peri-implantation, we first examined the consequence of uterine neurectomy on embryo implantation events. We observed that amputation of autonomic nerves innervating the uterus led to the failure of on-time implantation in rats. We then analyzed the effect of neurectomy on expression of DKK-3 further using immunohistochemistry and quantitative real-time reverse transcription polymerase chain reaction. We observed that disconnection of autonomic nerve innervation significantly increased DKK-3 expression in the endometrium before and during invasion of the blastocyst. We also observed high levels of DKK-3 immunoreactivity in the vasculature of the uterus during peri-implantation. Thus, we speculate that DKK-3 may relate to implantation. Besides, our findings provide a new line of evidence that DKK-3 may be regulated by the autonomic nervous system.
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Affiliation(s)
- Shujie Ning
- 1College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai’an City, Shandong Province 271018, China
- 2College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Yalin Wang
- 3College of Life Science, Shandong Agricultural University, Tai’an City, Shandong Province 271000, China
| | - Xuejun Yuan
- 3College of Life Science, Shandong Agricultural University, Tai’an City, Shandong Province 271000, China
| | - Shuying Wang
- 1College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai’an City, Shandong Province 271018, China
| | - Libo Huang
- 1College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai’an City, Shandong Province 271018, China
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