Fallopian Tube Anatomy, Microanatomy, Microcirculation and Counter-current Exchange

Verco, C. J.

doi:10.1007/978-1-4471-1987-6_1

Cited by 6 publications

(3 citation statements)

References 43 publications

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“…In addition, there is also the possibility of utero-tubal and tubo-ovarian vascular and perivascular anastomosis. This vascular pattern was reviewed by Verco (13,14), and it was found that altered vascular arrangement might also alter concentration of bioactive substances (e.g., ovarian steroids and prostaglandins) in such a way that uterine vessels are exposed to higher local levels than the circulating peripheral levels. The factors that resulted in tubal blockage would not only affect the tube but also disrupt the vascular communications along the tube (15,16).…”

Section: Discussionmentioning

confidence: 99%

Untitled

Basir

Lam

Wai‐Sum

et al. 2001

Journal of Assisted Reproduction and Genetics

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Section: Discussionmentioning

confidence: 99%

Untitled

Basir

Lam

Wai‐Sum

et al. 2001

Journal of Assisted Reproduction and Genetics

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“…Therefore, both the FT epithelial and stromal compartments resemble the uterine luminal epithelial and stromal compartments. However, the FT can be divided into three parts namely; the infundibulum, isthmus, and ampulla [1] . The tubal epithelial cells undergo cyclical changes throughout the monthly menstrual cycle.…”

Section: Human Fallopian Tubesmentioning

confidence: 99%

An update on hormonal regulation of early embryo-fallopian tube interactions: insights for improvements of assisted reproductive technology outcomes

Kodithuwakku

Yeung

et al. 2023

Reproductive and Developmental Medicine

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Human fallopian tubes (FTs) play important roles in the whole reproductive process. FTs are the site for the final maturation of gametes, fertilization, transport of preimplantation embryos, and early embryonic development before entering the uterus. All these functions are critical in the establishment of a successful pregnancy. When the embryo is in transit through the FT, the FT microenvironment changes through endocrine, paracrine, autocrine, and juxtacrine mechanisms which involve various hormones and bioactive substances mainly from the neighboring cells. Therefore, the interactions between the embryo and the FT may be the earliest embryo-maternal communications that are essential for the establishment of pregnancy. This review critically discusses the evidence of various hormonal and bioactive mediated control of the microenvironment in the FTs during the earliest embryo-maternal communications. Moreover, we highlight existing gaps in the knowledge and the importance of exploring more of the physiology of FTs which will hold the key to producing high-quality embryos for patients seeking in vitro fertilization (IVF) treatments.

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“…The oviduct transports the ovum towards the uterus, but the mechanism responsible for this is still unknown. Pauerstein and Eddy [1] theory, called 'tube locking' says that the ovum may be delayed in the oviduct by muscle contraction, isthmic oedema [2,3] or vascular distension [4]. The porcine oviduct and its secretions through the late follicular stage and the first four days of the estrous cycle provide a proper environment that facilitates the establishment of pregnancy.…”

Section: Introductionmentioning

confidence: 99%

Changes in Aquaporin 1, 5 and 9 Gene Expression in the Porcine Oviduct According to Estrous Cycle and Early Pregnancy

Tanski

Skowrońska

Eliszewski

et al. 2020

IJMS

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Aquaporins (AQPs) are a group of small, integral membrane proteins which play an important role in fluid homeostasis in the reproductive system. In our previous study, we demonstrated AQP1, 5 and 9 protein expression and localization in the porcine oviduct. The presence of these isoforms could suggest their role in the transport of the ovum to the uterus by influencing the epithelial cells’ production of oviductal fluid. The aim of this study was to evaluate the expression of AQP1, AQP5 and AQP9 in the infundibulum, ampulla and isthmus in the porcine oviduct during the estrous cycle (early luteal phase, days 2–4, medium luteal phase, days 10–12, late luteal phase days 14–16, follicular phase days 18–20) and pregnancy (period before implantation, days 14–16 and after the implantation, days 30–32) using the Real-Time PCR technique. As clearly demonstrated for the first time, AQP1, 5, and 9 gene expression is influenced by the estrus cycle and pregnancy. Furthermore, expression of AQPs in the porcine oviduct may provide the physiological medium that sustains and enhances fertilization and early cleavage-stage embryonic development. Overall, our study provides a characterization of oviduct AQPs, increasing our understanding of fluid homeostasis in the porcine oviduct to successfully establish and maintain pregnancy.

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Fallopian Tube Anatomy, Microanatomy, Microcirculation and Counter-current Exchange

Cited by 6 publications

References 43 publications

Untitled

Untitled

An update on hormonal regulation of early embryo-fallopian tube interactions: insights for improvements of assisted reproductive technology outcomes

Changes in Aquaporin 1, 5 and 9 Gene Expression in the Porcine Oviduct According to Estrous Cycle and Early Pregnancy

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