• functional
  • Given these identifiable costs and benefits, this predicts that oviduct size should be tightly coupled to the functional demands of this organ ( sensu Diamond and Hammond, 1992 ). (biologists.org)
  • positively
  • Preliminary results showed that 3 of 56 cases of endometrial cancer and 6 of 17 cases of atypical endometrial hyperplasias stained positively for oviduct-specific glycoprotein based on examination of 0.6-mm tissue cores. (aacrjournals.org)
  • strongly
  • The endometrial cancer tissue microarray showed that of 139 endometrioid endometrial carcinomas, 11 cases were strongly oviduct-specific glycoprotein positive, whereas the other 128 cases were negative or weakly positive. (aacrjournals.org)
  • Expression
  • Oviducts were retrieved for gene-expression analyses via microarray immediately post-mortem (chicken) or at surgery (pig), 24 h after mating or genital infusion. (diva-portal.org)
  • The expression of oviduct-specific glycoprotein was characterized by immunohistochemical methods with whole sections of endometrium from 90 women. (aacrjournals.org)
  • An endometrial cancer tissue microarray with 200 cases of endometrial cancer was also assessed for oviduct-specific glycoprotein, estrogen receptor, and PTEN expression. (aacrjournals.org)
  • We recently examined the expression of oviduct-specific glycoprotein in ovarian cancer because of the resemblance of ovarian serous adenocarcinomas, the most common type of ovarian cancer, to tubal epithelium. (aacrjournals.org)
  • Expression of P450arom and Estrogen Receptor Alpha in the Oviduct of Chinese Brown Frog (Rana dybowskii) during Prehibernation. (nih.gov)
  • In this study, we investigated the expression of P450arom and estrogen receptors α and β (ERα and ERβ) in the oviduct of Rana dybowskii during the breeding period and prehibernation. (nih.gov)
  • found
  • Biology Corner states that similar structures called vestigial oviducts are found in some male frogs, but they no longer provide the same function. (reference.com)
  • The University of Virginia found the oviducts in frogs are located along the sides of the body cavity, and they appear as coiled, yellowish tubes. (reference.com)
  • In support of this idea, Vézina and Williams ( 2003 ) found that total oviduct mass decreased by 47% immediately following ovulation of the last ovarian follicle even though an oviductal egg was still present at this point (though they did not identify which component(s) of the oviduct accounted for this decrease in mass). (biologists.org)
  • Thus
  • Thus, the avian oviduct has a highly regulated size-function relationship consistent with a high maintenance energy cost for this organ. (biologists.org)
  • classification
  • Oviduct-specific glycoprotein may be a useful diagnostic adjunct to more accurately classify premalignant and early malignant change in the endometrium, improving on the current irreproducible histologic classification system. (aacrjournals.org)
  • known
  • On the basis of these observations, we hypothesized that oviduct-specific glycoprotein may be a marker of the development and progression of atypical hyperplasias, which are known precursors of endometrial cancer. (aacrjournals.org)
  • mass
  • The yolk prepared by the latter is conducted by one or more specialized ducts to the oviduct and the point of union is distinguished by the opening of a " shell-gland " which secretes a membrane around the conjoined mass of ovum and yolk. (yourdictionary.com)
  • Instead
  • One specific physiological phenomenon of Chinese brown frog (Rana dybowskii) is that its oviduct expands prior to hibernation instead of expanding during the breeding period. (nih.gov)
  • acts
  • There is no CCAP or CCAP-like immunoreactivity shown in the oviduct or the nerves innervating the oviduct so it is probable that CCAP acts as a neurohormone to perform these functions. (wikipedia.org)
  • function
  • Here we show that the oviduct regresses rapidly `from the top down' as soon as the more proximal regions have completed their function but while the distal regions still retain an oviductal egg. (biologists.org)
  • We suggest that oviduct function is a significant contributor to the physiological costs of egg production and might mediate individual variation in maternal effects associated with non-yolk components of egg quality (e.g. immunoglobulins, lysozyme). (biologists.org)
  • Here, in zebra finches Taeniopygia guttata , we demonstrate that the oviduct does have a highly regulated size-function relationship. (biologists.org)
  • significant
  • There was a significant positive correlation between oviduct-specific glycoprotein staining and loss of PTEN in the cases of endometrial cancer ( P = 0.004). (aacrjournals.org)
  • energy
  • Recent studies have suggested that the oviduct might have high energy costs for growth and/or maintenance, contributing substantially to the energetic cost of reproduction. (biologists.org)
  • University
  • Aether and the University of South Australia are developing a bioprinted oviduct model to enable researchers to identify male-specific contraceptive targets that prevent the spermatozoa capacitation process from occurring. (3dmednet.com)
  • period
  • The relative CYP19 (a) and ERα (b) mRNA in the oviduct of Rana dybowskii during the breeding period (B) and prehibernation (P). Bars represent mean ± SD for three independent experiments. (nih.gov)