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Seraj H, Nazari MA, Atai AA, Amanpour S, Azadi M. A Review: Biomechanical Aspects of the Fallopian Tube Relevant to its Function in Fertility. Reprod Sci 2024; 31:1456-1485. [PMID: 38472710 DOI: 10.1007/s43032-024-01479-x] [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: 12/06/2023] [Accepted: 02/07/2024] [Indexed: 03/14/2024]
Abstract
The fallopian tube (FT) plays a crucial role in the reproductive process by providing an ideal biomechanical and biochemical environment for fertilization and early embryo development. Despite its importance, the biomechanical functions of the FT that originate from its morphological aspects, and ultrastructural aspects, as well as the mechanical properties of FT, have not been studied nor used sufficiently, which limits the understanding of fertilization, mechanotrasduction, and mechanobiology during embryo development, as well as the replication of the FT in laboratory settings for infertility treatments. This paper reviews and revives valuable information on human FT reported in medical literature in the past five decades relevant to the biomechanical aspects of FT. In this review, we summarized the current state of knowledge concerning the morphological, ultrastructural aspects, and mechanical properties of the human FT. We also investigate the potential arising from a thorough consideration of the biomechanical functions and exploring often neglected mechanical aspects. Our investigation encompasses both macroscopic measurements (such as length, diameter, and thickness) and microscopic measurements (including the height of epithelial cells, the percentage of ciliated cells, cilia structure, and ciliary beat frequency). Our primary focus has been on healthy women of reproductive age. We have examined various measurement techniques, encompassing conventional metrology, 2D histological data as well as new spatial measurement techniques such as micro-CT.
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Affiliation(s)
- Hasan Seraj
- School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Mohammad Ali Nazari
- School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran.
- Department of Speech and Cognition, CNRS UMR 5216, Grenoble Institute of Technology, Grenoble, France.
| | - Ali Asghar Atai
- School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Saeid Amanpour
- Vali-E-Asr Reproductive Health Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Cancer Biology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mojtaba Azadi
- School of Engineering, College of Science and Engineering, San Francisco State University, San Francisco, CA, USA.
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Visnyaiová K, Varga I, Feitscherová C, Pavlíková L, Záhumenský J, Mikušová R. Morphology of the immune cells in the wall of the human uterine tube and their possible impact on reproduction-uterine tube as a possible immune privileged organ. Front Cell Dev Biol 2024; 12:1325565. [PMID: 38516130 PMCID: PMC10955054 DOI: 10.3389/fcell.2024.1325565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 02/27/2024] [Indexed: 03/23/2024] Open
Abstract
The uterine tube, as well as other parts of the upper female reproductive system, is immunologically unique in its requirements for tolerance to allogenic sperm and semi-allogenic embryos, yet responds to an array of sexually transmitted pathogens. To understand this dichotomy, there is a need to understand the functional morphology of immune cells in the wall of the uterine tube. Thus, we reviewed scientific literature regarding immune cells and the human uterine tube by using the scientific databases. The human uterine tube has a diverse population of immunocompetent cells representing both the innate and adaptive immune systems. We describe in detail the possible roles of cells of the mononuclear phagocyte system (macrophages and dendritic cells), T and B lymphocytes, natural killer cells, neutrophils and mast cells in association with the reproductive functions of uterine tubes. We are also discussing about the possible "immune privilege" of the uterine tube, as another mechanism to tolerate sperm and embryo without eliciting an inflammatory immune response. In uterine tube is not present an anatomical blood-tissue barrier between antigens and circulation. However, the immune cells of the uterine tube probably represent a type of "immunological barrier," which probably includes the uterine tube among the immunologically privileged organs. Understanding how immune cells in the female reproductive tract play roles in reproduction is essential to understand not only the mechanisms of gamete transport and fertilization as well as embryo transport through the uterine tube, but also in improving results from assisted reproduction.
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Affiliation(s)
- Kristína Visnyaiová
- Second Department of Gynecology and Obstetrics, Faculty of Medicine, Comenius University in Bratislava and University Hospital, Bratislava, Slovakia
| | - Ivan Varga
- Institute of Histology and Embryology, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - Claudia Feitscherová
- Institute of Histology and Embryology, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - Lada Pavlíková
- Department of Rehabilitation Studies, Faculty of Health Care Studies, University of Western Bohemia, Pilsen, Czechia
| | - Jozef Záhumenský
- Second Department of Gynecology and Obstetrics, Faculty of Medicine, Comenius University in Bratislava and University Hospital, Bratislava, Slovakia
| | - Renáta Mikušová
- Institute of Histology and Embryology, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
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Liptáková A, Čurová K, Záhumenský J, Visnyaiová K, Varga I. Microbiota of female genital tract – functional overview of microbial flora from vagina to uterine tubes and placenta. Physiol Res 2022. [DOI: 10.33549/physiolres.934960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Microorganisms and eukaryotic human cells coexist in synergistic relationships in nearly every niche of the human body. The female genital tract consisting of the vagina, uterus with its cervix and endometrium, uterine tubes and ovaries – harbors its own typical microbiota, which accounts for 9 % of the total bacterial population in females. To this organ system, we also assigned the microbiome of the placenta, which has not been studied much until now. Among the spectrum of microbial species, the female genital tract is mainly dominated by Lactobacillus species, which are considered to be one of the simplest yet most important microbial communities. However, this relationship between macro- and micro-organisms seems to have a number of physiological functions, e.g., the vaginal and cervical microbiota have unique impact on reproductive health. The aim of this review was to provide current view on female genital tract microbiota and its role in reproductive health. We describe in detail the association of vaginal or tubal epithelium with microbiota or the role of microbiota in normal placental function.
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Affiliation(s)
| | - K Čurová
- Department of Medical and Clinical Microbiology, Faculty of Medicine, University of P. J. Šafárik, Košice, Slovak Republic.
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Varga I, Csöbönyeiová M, Visnyaiová K, Záhumenský J, Pavlíková L, Feitscherová C, Klein M. Functional Morphology of the Human Uterine Tubes in the 21st Century: Anatomical Novelties and Their Possible Clinical Applications. Physiol Res 2022. [DOI: 10.33549/physiolres.935036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The uterine tube (UT) pathologies account for 25-35 % of female factor infertility. Although these peculiar organs were first studied several hundred years ago, they have become overlooked and neglected mainly due to the successes of reproductive medicine. Nevertheless, reproductive medicine still faces many challenges regarding the fertility outcomes of in vitro fertilization (IVF). Many obstacles and problems can be resolved by a more detailed understanding of the UT morphology and function during normal reproduction. Over the course of the 21st century, many new insights have been obtained: the presence of a population of telocytes in the tubal wall responsible for normal motility and hormone sensory function, the demonstration of lymphatic lacunae of the mucosal folds necessary for oocyte capture and tubal fluid recirculation, or a thorough profiling of the immune makeup of the UT epithelial lining with the discovery of regulatory T cells presumably important for maternal tolerance towards the semi-allogenic embryo. New discoveries also include the notion that the UT epithelium is male sex hormone-sensitive, and that the UT is not sterile, but harbors a complex microbiome. The UT epithelial cells were also shown to be the cells-of-origin of high-grade serous ovarian carcinomas. Finally, yet importantly, several modern morphological directions have been emerging recently, including cell culture, the development of tubal organoids, in silico modelling, tissue engineering and regenerative medicine. All these novel insights and new approaches can contribute to better clinical practice and successful pregnancy outcomes.
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Affiliation(s)
- I Varga
- Institute of Histology and Embryology, Faculty of Medicine, Comenius University, Bratislava, Slovak Republic.
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Csöbönyeiová M, Klein M, Juríková M, Feitscherová C, Gálfiová P, Varga I. Immunohistochemical and Scanning Electron Microscopic Confirmation of the Lymphatic Lacunae in the Uterine Tube Mucosal Folds. What Are the Clinical Implications? Physiol Res 2022. [DOI: 10.33549/physiolres.935029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Uterine tubes (UTs) are essential during physiological reproduction. The most intriguing part of its wall is the mucosa. Apart from the epithelial cells vital for its normal function, the connective tissue lamina propria contains wide spaces whose function, morphology and structure are yet to be elucidated. The present study used bioptic samples from 25 premenopausal (mean age 48.3 years, σ=3.56) and 25 postmenopausal women (mean age 57.8 years, σ=7.79). In both study groups, samples were obtained from two anatomically distinct parts of the UT – ampulla and infundibulum with fimbriae. The specimens were processed for scanning electron microscopy (SEM) and immunohistochemical detection of podoplanin (clone D2-40) and VEGFR-3 – two markers of lymphatic endothelial cells. The results showed that specimens from premenopausal and postmenopausal women contain wide lymphatic spaces, also known as lymphatic lacunae. The most probable function of the lacunae in the fimbriae is oocyte pick-up upon ovulation thanks to their ability to get engorged with lymph, thus serving as an erectile-like tissue. The ampullary lacunae are probably responsible for tubal fluid maintenance and recirculation. These results indicate that they are vital for normal reproduction because tubal fluid dynamics are as important as fluid composition. Further research on this topic is highly warranted because more detailed insights into UT function have a great potential to refine the methods of reproductive medicine, e.g. in vitro fertilization (IVF), which are still far from optimal regarding fertility outcomes.
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Affiliation(s)
| | | | | | | | | | - I Varga
- Institute of Histology and Embryology, Faculty of Medicine, Comenius University in Bratislava, Slovakia.
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Gálfiová P, Polák Š, Mikušová R, Juríková M, Klein M, Csöbönyeiová M, Danišovič Ľ, Varga I. Scanning electron microscopic study of the human uterine tube epithelial lining: surgical biopsy samples and epithelial cell culture. Physiol Res 2022. [DOI: 10.33549/physiolres.935031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
This article summarizes the importance of the exact morphology of human uterine/fallopian tube epithelium at the scanning electron microscopy (SEM) level for the clinical outcome even nowadays. Visual referential micrographs from SEM reflect two ways to view human epithelial cell lining surfaces: the surface epithelial uterine tube from surgical tissue biopsy and human fallopian tube epithelial cells (HFTEC) culture monolayer surface. One colorized image visualizes ciliated cells, distinguishes them from non-ciliated cells, and provides an educational benefit. A detailed description of the ultrastructure in referential and pathologic human uterine tube epithelium is important in defining the morphological basis of high-grade carcinomas, in the mechanism of pathophysiology, and in discussing options for its prevention. Cell cultures of human fallopian tube epithelial cells offer new approaches in simulating the mechanisms of cancer genesis or may help to elucidate the genetic basis of several diagnoses. New technical approaches in SEM provide higher resolution and detailed surface images. The SEM modality is still one of the current options in diagnostics and may be useful for advancing human reproductive organ cancer research.
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Affiliation(s)
| | | | | | - M Juríková
- Institute of Histology and Embryology, Faculty of Medicine, Comenius University in Bratislava, Slovakia.
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Csöbönyeiová M, Varga I, Lapides L, Pavlíková L, Feitscherová C, Klein M. From a Passive Conduit to Highly Dynamic Organ. What are the Roles of Uterine Tube Epithelium in Reproduction? Physiol Res 2022. [DOI: 10.33549/physiolres.934954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
It is well known that the mammalian uterine tube (UT) plays a crucial role in female fertility, where the most important events leading to successful fertilization and pre-implantation embryo development occur. The known functions of these small intra-abdominal organs are: an uptake and transport of oocytes; storage, transportation, and capacitation of spermatozoa, and finally fertilization and transport of the fertilized ovum and early embryo through the isthmus towards the uterotubal junction. The success of all these events depends on the interaction between the uterine tube epithelium (UTE) and gametes/embryo. Besides that, contemporary research revealed that the tubal epithelium provides essential nutritional support and the most suitable environment for early embryo development. Moreover, recent discoveries in molecular biology help understand the role of the epithelium at the cellular and molecular levels, highlighting the factors involved in regulating the UT signaling, that affects different steps in the fertilization process. According to the latest research, the extracellular vesicles, as a major component of tubal secretion, mediate the interaction between gametes/embryo and epithelium. This review aims to provide up-to-date knowledge on various aspects concerning tubal epithelium activity and its cross-talk with spermatozoa, oocytes and preimplantation embryo and how these interactions affect fertilization and early embryo development.
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Affiliation(s)
| | - I Varga
- Institute of Histology and Embryology, Faculty of Medicine, Comenius University in Bratislava, Slovak Republic.
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Rigby CH, Aljassim F, Powell SG, Wyatt JN, Hill CJ, Hapangama DK. The immune cell profile of human fallopian tubes in health and benign pathology: a systematic review. J Reprod Immunol 2022; 152:103646. [DOI: 10.1016/j.jri.2022.103646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/12/2022] [Accepted: 05/17/2022] [Indexed: 10/18/2022]
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Wu CR, Cai HL, Cai DX, Li TL, Shen R, Zi D. A Simulation Study on the Growth of Oviduct Mucosa Cells in the Uterine Cavity Microenvironment. Int J Womens Health 2021; 13:829-840. [PMID: 34552355 PMCID: PMC8450286 DOI: 10.2147/ijwh.s328567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 08/19/2021] [Indexed: 11/23/2022] Open
Abstract
Objective The growth of oviduct mucosa in the uterine cavity was observed by co-culture of oviduct mucosa cells and endometrial cells in different proportions to study the possibility and function of the growth of oviduct mucosa in the uterine cavity. Methods The extracted cells were identified by immunofluorescence with cytokeratins 19 (CK19) and vimentin. A Cell Counting Kit-8 (CCK8) experiment, cell decidualization induction, and HE staining were performed after the co-culture of two kinds of cells in different proportions. Results 1) The cells could grow normally when the two cells were co-cultured indirectly. 2) A CCK8 test of oviduct mucosa cells showed that the growth rate of each group was similar after the indirect co-culture of two kinds of cells in different proportions, which was in line with the growth law of normal cells. 3) Immunofluorescence identification of the cells showed that most of the two kinds of cells in the second passage were CK19 positive and were epithelial cells, while most of the cells in the fifth passage expressed positive vimentin antibody and were stroma cells. 4) After cell decidualization induction, the cell morphology of each group showed deciduation-like changes. 5) After decidualization, the cell morphology of each group was similar after HE staining. Conclusion Oviduct mucosa cells can grow normally in the uterine environment. In the uterine environment with different degrees of endometrial loss, the growth rate of oviduct mucosa cells is not inhibited. Its morphology does not change, and it can undergo decidualization in vitro.
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Affiliation(s)
- Cheng-Rong Wu
- Department of Obstetrics and Gynecology, Guizhou Medical University, Guiyang, 550004, People's Republic of China
| | - Hua-Lei Cai
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, People's Republic of China
| | - Di-Xian Cai
- Department of Psychology, Guizhou Medical University, Guiyang, 550004, People's Republic of China
| | - Tao-Lan Li
- Department of Obstetrics and Gynecology, Guizhou Medical University, Guiyang, 550004, People's Republic of China
| | - Rong Shen
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, People's Republic of China
| | - Dan Zi
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, People's Republic of China
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Kulus M, Kranc W, Wojtanowicz-Markiewicz K, Celichowski P, Światły-Błaszkiewicz A, Matuszewska E, Sujka-Kordowska P, Konwerska A, Zdun M, Bryl R, Wieczorkiewicz M, Kulus J, Stelmach B, Stefańska K, Budna-Tukan J, Petitte JN, Mozdziak P, Ratajczak K, Matysiak J, Jaśkowski JM, Nowicki M, Kempisty B. New Gene Markers Expressed in Porcine Oviductal Epithelial Cells Cultured Primary In Vitro Are Involved in Ontological Groups Representing Physiological Processes of Porcine Oocytes. Int J Mol Sci 2021; 22:ijms22042082. [PMID: 33669854 PMCID: PMC7923230 DOI: 10.3390/ijms22042082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/11/2021] [Accepted: 02/16/2021] [Indexed: 12/11/2022] Open
Abstract
Changes that occur within oviducts after fertilization are dependent on post-ovulation events, including oocyte-oviduct interactions. Although general processes are well-defined, the molecular basis are poorly understood. Recently, new marker genes involved in ‘cell development’, ‘cell growth’, ‘cell differentiation’ and ‘cell maturation’ processes have been identified in porcine oocytes. The aim of the study was to assess the expression profile of genes in primary in vitro cultured oviductal epithelial cells (OECs), clustered in Gene Ontology groups which enveloped markers also identified in porcine oocytes. OECs (from 45 gilts) were surgically removed and cultured in vitro for ≤ 30 days, and then subjected to molecular analyses. The transcriptomic and proteomic profiles of cells cultured during 7, 15 and 30 days were investigated. Additionally, morphological/histochemical analyzes were performed. The results of genes expression profiles were validated after using RT-qPCR. The results showed a significant upregulation of UNC45B, NOX4, VLDLR, ITGB3, FMOD, SGCE, COL1A2, LOX, LIPG, THY1 and downregulation of SERPINB2, CD274, TXNIP, CELA1, DDX60, CRABP2, SLC5A1, IDO1, ANPEP, FST. Detailed knowledge of the molecular pathways occurring in the OECs and the gametes that contact them may contribute both to developments of basic science of physiology, and new possibilities in advanced biotechnology of assisted reproduction.
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Affiliation(s)
- Magdalena Kulus
- Department of Veterinary Surgery, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (M.K.); (K.W.-M.); (K.R.)
| | - Wiesława Kranc
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (W.K.); (R.B.)
| | - Katarzyna Wojtanowicz-Markiewicz
- Department of Veterinary Surgery, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (M.K.); (K.W.-M.); (K.R.)
| | - Piotr Celichowski
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (P.C.); (P.S.-K.); (A.K.); (K.S.); (J.B.-T.); (M.N.)
| | - Agata Światły-Błaszkiewicz
- Department of Inorganic and Analytical Chemistry, Poznan University of Medical Sciences, 60-780 Poznan, Poland; (A.Ś.-B.); (E.M.); (J.M.)
| | - Eliza Matuszewska
- Department of Inorganic and Analytical Chemistry, Poznan University of Medical Sciences, 60-780 Poznan, Poland; (A.Ś.-B.); (E.M.); (J.M.)
| | - Patrycja Sujka-Kordowska
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (P.C.); (P.S.-K.); (A.K.); (K.S.); (J.B.-T.); (M.N.)
- Department of Anatomy and Histology, University of Zielona Gora, 65-046 Zielona Gora, Poland
| | - Aneta Konwerska
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (P.C.); (P.S.-K.); (A.K.); (K.S.); (J.B.-T.); (M.N.)
| | - Maciej Zdun
- Department of Basic and Preclinical Sciences, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (M.Z.); (M.W.)
| | - Rut Bryl
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (W.K.); (R.B.)
| | - Maria Wieczorkiewicz
- Department of Basic and Preclinical Sciences, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (M.Z.); (M.W.)
| | - Jakub Kulus
- Department of Diagnostics and Clinical Sciences, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (J.K.); (J.M.J.)
| | - Bogusława Stelmach
- Division of Infertility and Reproductive Endocrinology, Department of Gynecology, Obstetrics and Gynecological Oncology, Poznan University of Medical Sciences, 60-535 Poznan, Poland;
| | - Katarzyna Stefańska
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (P.C.); (P.S.-K.); (A.K.); (K.S.); (J.B.-T.); (M.N.)
| | - Joanna Budna-Tukan
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (P.C.); (P.S.-K.); (A.K.); (K.S.); (J.B.-T.); (M.N.)
| | - James N. Petitte
- Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC 27695, USA; (J.N.P.); (P.M.)
| | - Paul Mozdziak
- Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC 27695, USA; (J.N.P.); (P.M.)
| | - Kornel Ratajczak
- Department of Veterinary Surgery, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (M.K.); (K.W.-M.); (K.R.)
| | - Jan Matysiak
- Department of Inorganic and Analytical Chemistry, Poznan University of Medical Sciences, 60-780 Poznan, Poland; (A.Ś.-B.); (E.M.); (J.M.)
| | - Jędrzej M. Jaśkowski
- Department of Diagnostics and Clinical Sciences, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (J.K.); (J.M.J.)
| | - Michał Nowicki
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (P.C.); (P.S.-K.); (A.K.); (K.S.); (J.B.-T.); (M.N.)
| | - Bartosz Kempisty
- Department of Veterinary Surgery, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (M.K.); (K.W.-M.); (K.R.)
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (W.K.); (R.B.)
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (P.C.); (P.S.-K.); (A.K.); (K.S.); (J.B.-T.); (M.N.)
- Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC 27695, USA; (J.N.P.); (P.M.)
- Correspondence:
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Méndez-Tepepa M, Zepeda-Pérez D, Espindola-Lozano M, Rodríguez-Castelán J, Arroyo-Helguera O, Pacheco P, Nicolás-Toledo L, Cuevas-Romero E. Hypothyroidism modifies differentially the content of lipids and glycogen, lipid receptors, and intraepithelial lymphocytes among oviductal regions of rabbits. Reprod Biol 2020; 20:247-253. [PMID: 32089504 DOI: 10.1016/j.repbio.2020.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 02/12/2020] [Accepted: 02/14/2020] [Indexed: 10/25/2022]
Abstract
Hypothyroidism affects the content of triacylglycerol (TAG), total cholesterol (TC), oxidized lipids, glycogen, and infiltration of immune cells into the ovary and uterus. This study aimed to analyze the impact of hypothyroidism on the lipid content of different regions of the oviduct. Control (n = 6) and hypothyroid (n = 6; 10 mg/kg/day of methimazole in the drinking water for 30 days) adult rabbits were used. In the fimbriae/infundibulum (FIM/INF), ampulla, (AMP), isthmus (IST), and utero-tubal junction (UTJ), the TAG and TC concentrations, presence of oxidized lipid, relative expressions of perilipin A (PLIN A), peroxisome proliferator-activated receptor γ (PPARγ), CAAT/enhancer-binding protein α (C/EBPα), and farnesoid X receptor (FXRα) were analyzed. The content of glycogen and glycans, as well as the infiltration of lymphocytes, were also quantified. In the FIM/INF, hypothyroidism reduced the content of TC, expression of C/EBPα, and presence of glycans while increased the number of intraepithelial lymphocytes. In the AMP and IST-UTJ regions, hypothyroidism increased the content of TAG, oxidized lipids, expression of PPARγ, and glycogen content but decreased the expression of PLIN-A. The FXRα expression in secretory cells of IST-UTJ was higher in the hypothyroid rabbits compared to controls. Additionally, hypothyroidism reduced the C/EBPα expression and the number of intraepithelial lymphocytes in the AMP and IST-UTJ regions, respectively. We demonstrated that the effect of hypothyroidism depends on the oviductal region, possibly associated with different physiological functions specific to each region. These alterations may be related to infertility, tubal disturbances, and ectopic pregnancy observed in hypothyroid women.
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Affiliation(s)
- Maribel Méndez-Tepepa
- Doctorado en Ciencias Biológicas, Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico
| | - Dafne Zepeda-Pérez
- Maestría en Ciencias Biológicas, Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico
| | | | - Julia Rodríguez-Castelán
- Doctorado en Ciencias Biológicas, Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico; Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | | | - Pablo Pacheco
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Leticia Nicolás-Toledo
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico
| | - Estela Cuevas-Romero
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico.
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Varga I, Gálfiová P, Blanková A, Konarik M, Báča V, Dvořákova V, Musil V, Turyna R, Klein M. Terminologia Histologica 10 years on: some disputable terms in need of discussion and recent developments. Ann Anat 2019; 226:16-22. [PMID: 31330306 DOI: 10.1016/j.aanat.2019.07.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 07/06/2019] [Accepted: 07/09/2019] [Indexed: 02/06/2023]
Abstract
At first sight, the issue of morphological terminology may seem to be a "closed and unchanging chapter", as many of the structures within the human body have been known for decades or even centuries. However, the exact opposite is true. The initial knowledge of the microscopic structure of the human body has been continuously broadening thanks to the development of new specialized staining techniques, discovery of the electron microscope, or later application of histochemical and immunohistochemical methods into routine tissue examination. Contrary to popular belief, histology has a status of constantly developing scientific discipline, with continuous influx of new knowledge, resulting in an unavoidable necessity to revise the histological nomenclature at regular intervals. The team of experts of the Federative International Programme on Anatomical Terminology, a working group of the International Federation of Associations of Anatomists, published in 2008 the First Edition of Terminologia Histologica. Terminologia Histologica (TH) is the best and most extensive of all the histological nomenclatures ever issued. However, here we suggest that several terms of important histological structures are still missing while several other terms are disputable. First, we present some clinically important terms of cells and tissue structures for inclusion in the next TH and, in a second part, we refer to some new terms in the current edition of the TH which are not yet mentioned in current histology textbooks (e.g., fusocellular connective tissue, bundle bone as the third type of bone tissue, spongy layer of vagina or arteria vaginata from the splenic white pulp). With this article we hope to start a wide scientific discussion which will lead to an inambiguous definition and demonstration of typical examples of all terms in the TH, with the result that the new edition of the Terminologia Histologica will become an internationally accepted communication tool for all practitioners and teachers of histology alike.
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Affiliation(s)
- Ivan Varga
- Institute of Histology and Embryology, Comenius University in Bratislava, Faculty of Medicine, Špitálska 24, SK-81372 Bratislava, Slovakia.
| | - Paulína Gálfiová
- Institute of Histology and Embryology, Comenius University in Bratislava, Faculty of Medicine, Špitálska 24, SK-81372 Bratislava, Slovakia
| | - Alžbeta Blanková
- Department of Anatomy, Second Faculty of Medicine, Charles University, U Nemocnice 3, 128 00 Praha, Czech Republic
| | - Marek Konarik
- Department of Anatomy, Second Faculty of Medicine, Charles University, U Nemocnice 3, 128 00 Praha, Czech Republic
| | - Václav Báča
- Department of Health Care Studies, College of Polytechnics, Tolstého 16, 586 01 Jihlava, Czech Republic
| | - Vlasta Dvořákova
- Department of Health Care Studies, College of Polytechnics, Tolstého 16, 586 01 Jihlava, Czech Republic
| | - Vladimír Musil
- Centre of Scientific Information, Third Faculty of Medicine, Charles University, Ruská 87, 10000 Prague, Czech Republic; Institute of Information Studies and Librarianship, Faculty of Arts, Charles University, Prague, Czech Republic
| | - Radovan Turyna
- Department of Anatomy, Second Faculty of Medicine, Charles University, U Nemocnice 3, 128 00 Praha, Czech Republic
| | - Martin Klein
- Institute of Histology and Embryology, Comenius University in Bratislava, Faculty of Medicine, Špitálska 24, SK-81372 Bratislava, Slovakia
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