Track topics on Twitter Track topics that are important to you
To study how the oviduct behaves in relation to fluid secretion and sperm transport, ovary-oviduct-uterus complexes of the mouse were installed in a fluid-circulating chamber without disturbing the blood circulation or parasympathetic innervation. Injection of a bolus of Indian ink into the lower isthmus revealed very active adovarian peristalsis of the isthmus, which was most prominent during the periovulatory period. Oviduct fluid, secreted by the entire length of the isthmus, was rapidly transported to the ampulla and ovarian bursa before draining into the peritoneal cavity. The upper isthmus, in particular the isthmic-ampullary junction, was responsible for this adovarian fluid flow. Peristalsis of the oviduct, undisturbed flow of oviduct fluid from the isthmus to the peritoneal cavity and, the spermatozoon's own motility all contribute to efficient sperm ascent and to fertilization within the oviduct. Therefore, chemotaxis, rheotaxis and thermotaxis of spermatozoa toward oocyte-cumulus complexes in the ampulla are all unlikely mechanisms for explaining sperm-oocyte contact and successful fertilization, given the rapid adovarian flow of oviduct fluid in this species.
This article was published in the following journal.
Name: Biology of reproduction
The oviduct provides the optimal micro milieu for early embryo development. However, accessing the bovine oviductal fluid in vivo for analysis is still challenging and therefore the oviductal fluid i...
Some of the functions of melatonin in mammals are exerted through its membrane receptors (MRs) and studies have shown that estradiol (E2) might play an important role in regulating the expression of t...
To evaluate intra-articular fluid pressures and joint compliance generated by fluid management systems on cadaveric shoulders and knees under simulated arthroscopic conditions, and to compare joint co...
The avian embryo develops within a specialized biological container (eggshell) that contains crucial nutritional compartments (albumen, yolk). We analyzed the transcriptome of ovary and three segments...
Bisphenol A (BPA) is an endocrine disrupting compound that is a pervasive environmental contaminant. Although it has been reported to affect the development of a variety of fetal reproductive tissues,...
Impact of intraoperative use of pneumatic peristaltic compression device on hemodynamics vis a vis on fluid requirement during general anaesthesia and surgery.
The purpose of this study is to evaluate the efficacy of a non-invasive peristaltic pulse pneumatic device (PCD) in the treatment of intermittent claudication in patients having documente...
Are there any difference of uterine peristaltic frequencies between pregnant and non-pregnant women in embryo transfer cycles?
The determination of fluid status in dialysis patients is a major clinical problem. In this study the NMR-MOUSE is used to determine if it can be used to non-invasively determine hydration...
This is an open label trial of mouse allergenic extract administered by subcutaneous injection in adults with asthma and mouse sensitivity. The study is designed to evaluate: - the saf...
A cyst (CYSTS) near the OVARY, derived from anomalies of the FALLOPIAN TUBES or the BROAD LIGAMENT. The paramesonephric type consists of ciliated cells similar to the oviduct epithelium. The mesonephric type consisted of an epithelium with minimally surface structures. They can be found on the thin oviduct (paratubal cysts) or near its fimbriated end (hydatid of Morgagni).
A method of measuring the effects of a biologically active substance using an intermediate in vivo or in vitro tissue or cell model under controlled conditions. It includes virulence studies in animal fetuses in utero, mouse convulsion bioassay of insulin, quantitation of tumor-initiator systems in mouse skin, calculation of potentiating effects of a hormonal factor in an isolated strip of contracting stomach muscle, etc.
Incoordination of voluntary movements that occur as a manifestation of CEREBELLAR DISEASES. Characteristic features include a tendency for limb movements to overshoot or undershoot a target (dysmetria), a tremor that occurs during attempted movements (intention TREMOR), impaired force and rhythm of diadochokinesis (rapidly alternating movements), and GAIT ATAXIA. (From Adams et al., Principles of Neurology, 6th ed, p90)
Fluid collected from nipple by gentle aspiration. The fluid contains cells and extracellular fluid from the breast ductal epithelium.
A genus of the subfamily SIGMODONTINAE consisting of 49 species. Two of these are widely used in medical research. They are P. leucopus, or the white-footed mouse, and P. maniculatus, or the deer mouse.