(n.) A special cell in certain cryptogamous plants containing oospheres, as in the rockweeds (Fucus), and the orders Vaucherieae and Peronosporeae.
Example Sentences:
(1) This immunocytochemical evidence supports the hypothesis that the DNA of the inactive X-chromosome of the human 17-week gestation oogonium is methylated.
(2) In situ nucleic acid hybridization showed that the synthesis of nucleolar DNA begins in oogonium and proceeds slowly through leptotene and zygotene when a small amount of extrachromosomal nucleolar DNA is produced.
(3) These vesicles (V1) are formed originally in unfertilized eggs by smooth endoplasmic reticulum (SER) after release of the eggs from the oogonium.
(4) In connection with this, it is suggested that the term "oogonium" (which is used to designate such cells in the literature) be retained only for proliferating i-cells containing finely filamentous nuclear material in the cytoplasm in the genital zone of the hydra.
(5) In this way, in vitro development from oogonium to larva has been maintained for several generations.
(6) P. diclinum (synonymous with P. gracile sensu Middleton) showed minor differences in vesicle, oospore and oogonium size from P. destruens.
(7) Prior to meiosis in triploid gynogenetic all-female forms of Poeciliopsis, the chromosome number of the nucleus of the triploid oogonium is raised endomitotically to hexaploid.
Ovarian
Definition:
(a.) Alt. of Ovarial
Example Sentences:
(1) Because cystine in medium was converted rapidly to cysteine and cysteinyl-NAC in the presence of NAC and given that cysteine has a higher affinity for uptake by EC than cystine, we conclude that the enhanced uptake of radioactivity was in the form of cysteine and at least part of the stimulatory effect of NAC on EC glutathione was due to a formation of cysteine by a mixed disulfide reaction of NAC with cystine similar to that previously reported for Chinese hamster ovarian cells (R. D. Issels et al.
(2) The total content of both thyroid hormones in the oocytes increased throughout most of the ovarian cycle as the oocytes increased in size from less than 2 mg to approximately 6.5 mg by ovulation.
(3) The epithelial changes occur during the same time period that interstitial cells with ultrastructural and histochemical properties of steroid-secreting tissue appear in the ovarian stroma.
(4) Among women aged 49 years or older, 46% of healthy controls but 73% of ovarian cancer patients and 77% of women with successfully treated ovarian cancer, had low apolipoprotein(a) levels.
(5) The inhibition by TAD of IMP DH activity in ovarian carcinomas (N = 4) was 81%.
(6) Ovarian clear cell adenocarcinoma has distinctly different clinical behavior compared to serous carcinoma and should be regarded as an aggressive epithelial histologic type.
(7) Fertilization of golden hamster eggs was blocked both in vitro and in vivo by antibodies produced in rabbits against specific hamster ovarian antigens (HOA).
(8) Ovarian vein sampling for androgen was essential in locating this patient's microscopic tumor.
(9) No woman is at greater risk for ovarian carcinoma than one who is a member of a hereditary ovarian carcinoma syndrome kindred and whose mother, sister, or daughter has been affected with this disease and with an integrally related hereditary syndrome cancer.
(10) Thus, these data demonstrate for the first time that ETOH is capable of altering prepubertal ovarian responsiveness to VIP, a peptide known to be involved in the developmental regulation of ovarian function.
(11) Cd accumulated dose and time dependently in oviducts and induced a dose-dependent depression and delay in the rise of ovarian P secretion during days 1 through 5 of pregnancy.
(12) Ovarian venous concentrations of these four steroids from the side draining the tumor-bearing ovary were increased in 40 to 80% of the women.
(13) In 1968, nearly 60% of the malignant ovarian tumors were treated by doctors in internal medicine, surgery and radiology etc., rather than gynecology, which was partly because the primary site of the cancer was unknown during the clinical course and partly because the gynecologist gave up treatment of patients in advanced cases.
(14) Ovarian aromatase activity, assessed by incubating the homogenised ovaries of treated rats with tritium-labelled androstenedione (0.2 microM) or testosterone (1 microM), indicated that residual enzyme activity was reduced compared with controls.
(15) Thus, a4 and a2 alleles of the c-Ha-ras-1 may perhaps be viewed as genetic markers of predisposition to lung, ovarian and thyroid cancer, respectively, in combination with other clinical parameters.
(16) However LHRH agonists alone or in combination with ovarian steroids are of potential value as a research tool.
(17) Such anti-gonadotropic action of TNF-alpha on granulosa cell differentiation may be also relevant to the alteration of ovarian function during physiopathological processes like inflammatory or infection diseases.
(18) The value of radical resected residual tumors and the involvement of the lymph nodes are discussed on a series of 206 patients with ovarian carcinoma.
(19) Housing young female Djungarian hamsters (Phodopus campbelli) with an adult male accelerates uterine and ovarian development and there is a strong relationship between uterine weight and ovarian measures (e.g., follicular size).
(20) The number of ovarian balls rises to about 6300 per worm, with the maximum being attained more rapidly in unfertilized than in fertilized females.