(1) Since 1987, it has become possible to obtain immature ova from the living animal and to let them mature, fertilize and develop into embryos capable of transplantation outside the body.
(2) We previously found that transfected TNP-specific B cells undergo both Ca2+ signaling and desensitization upon interaction with the thymus-dependent Ag TNP-OVA.
(3) These observations indicated that OVA-binding B cells in the peripheral blood are already committed to producing IgM antibody and probably are the precursors of antibody-forming cells of the IgG or IgE class.
(4) Synchronously transferred ova showed no such developmental precocity.
(5) Trinitrophenyl (TNP) [coupled to ovalbumin (OVA)] was used as an internal antigen in prenatally trinitrobenzenesulphonic acid (TNBS)-treated mice and as an external antigen in prenatally untreated mice.
(6) In another experiment, animals were sacrificed on estrus of the next cycle and the oviducts examined for the number of ova.
(7) Over 90% of the anti-OVA antibodies were of the IgGl isotype with both adjuvants; OVA in alum induced slightly more IgGl anti-OVA antibodies than cFA.
(8) When the hybridoma was stimulated with OVA-pulsed APC, EGTA extracts of the cells contained GIF having affinity for OVA.
(9) Both syngeneic and allogeneic thymic epithelium endowed nude mice with the capacity to mount IgG antibody and delayed-type hypersensitivity (DTH) responses to the T-dependent antigen ovalbumin (OVA).
(10) There was no statistical difference in the estradiol response up to the day of laparoscopic ova recovery for the two regimes.
(11) A small membranous sheet of the perivitelline layer (PL) isolated from freshly ovulated ova was incubated with cock spermatozoa, and morphological changes of PL and percentage of spermatozoa lacking acrosomes were observed during incubation.
(12) The biochemical and hormonal changes 48 hours after ovulation imply a role for the sympathetic transmitter NE in causing a contractile state of the ampulloisthmic region ("tube locking") for retention of ova prior to nidation in the uterine cavity.
(13) Silver staining (Howell and Black, 1980) was used in light and electron microscopic studies for detecting the localization of argentophilic nuclear proteins in fertilized ova and cleaving mouse embryos.
(14) In addition, a Boyle-van't Hoff plot was derived from exposing ova to hypotonic and hypertonic solutions ranging from 0.1 to 2.8 osmol.
(15) Micromanipulation of sperm and ova has been suggested as a means to produce progeny of two sires instead of a sire and dam.
(16) Melengestrol acetate-treated animals had significantly (P less than 0.5) fewer fertilized ova at 3 days after mating (50%) as compared with control animals (100%).
(17) The suppressing cells in the Ova ISC were shown to be irradiation sensitive, depleted by anti-theta antiserum and complement treatment, and did not absorb to glass bead columns.
(18) The target lesions included 1) pyoderma caused by Staphylococcus aureus, 2) cryptococcal infection, 3) dermal sporotrichosis, 4) colon ulcer caused by amebic dysentery, 5) cutaneous leishmaniasis, and 6) chronic liver abscess containing ova of Ascaris lumbricoides.
(19) The ova were cultured, in the presence of colchicine, for 26 h and metaphase preparations made of the first cleavage division.
(20) Ova are observed in vitro to rotate counterclockwise immediately following sperm attachment.
Oval
Definition:
(a.) Of or pertaining to eggs; done in the egg, or inception; as, oval conceptions.
(a.) Having the figure of an egg; oblong and curvilinear, with one end broader than the other, or with both ends of about the same breadth; in popular usage, elliptical.
(a.) Broadly elliptical.
(n.) A body or figure in the shape of an egg, or popularly, of an ellipse.
Example Sentences:
(1) It happens to anyone and everyone and this has been an 11-year battle.” Emergency services were called to the oval about 6.30pm to treat Luke for head injuries, but were unable to revive him.
(2) At autopsy, this DOCA-hypertensive rat was found to have a form of hepatitis associated with proliferative activity, i.e., cellular unrest, mitotic figures and oval cell hyperplasia.
(3) Facebook Twitter Pinterest Ronald Reagan meeting with Rupert Murdoch in the Oval Office on 18 January 1983.
(4) A radical rearrangement of the organism occurred gradually: initially oval in shape, the parasite became round, then elongated, flattened, and underwent cytokinesis.
(5) Numerous slender sarcotubules, originating from the A-band side terminal cisternae, extend obliquely or longitudinally and form oval or irregular shaped networks of various sizes in front of the A-band, then become continuous with the tiny mesh (fenestrated collar) in front of the H-band.
(6) The nuclei in these typical onocytes appeared oval or spheroid.
(7) Afghanistan will be the main item on the agenda at a meeting on Wednesdaybetween Cameron and Barack Obama in the Oval Office on the main day of the visit.
(8) They are rounded or oval bodies visible to the naked eye, and situated ventrolaterally in the posterior mesonephros.
(9) Small oval cysts (less than or equal to 1 cm) with strong echo were all diagnosed colloid goiter.
(10) This model opened possibilities to study the filamentous form of P. ovale in vitro.
(11) Electron microscopically, the tumor cell nuclei were oval or polygonal and sometimes slightly invaginated, with a few prominent nucleoli.
(12) The proliferation zone is only a few cell rows thick and contains single cells with an oval shape and longitudinal fibrocyte-like nucleus.
(13) Furthermore, the long axis of the right and left atria was measured from the center of the apposed atrioventricular valve leaflets to the posterior atrial wall, and the sizes of the atrial chambers were defined using their widths at the prospective broadest points through the area of foramen ovale.
(14) The septum primum, as the valve of the foramen ovale, has been previously described as a mobile, echogenic line or dot in the left atrium.
(15) The authors described a fluoroscopic method of guiding percutaneous needle penetration of the foramen ovale.
(16) "I'm led to believe that Notts County used to play their home games at Trent Bridge, The Oval hosted an FA Cup final and Bramall Lane used to be a cricket ground, but are there any other cricket grounds that have hosted either league or international football matches?"
(17) The earliest perfect ring-shaped formation of the foramen ovale is observed in the 7th fetal month and the latest in 3 years after birth.
(18) Magnetic resonance revealed oval corresponding hypointense foci both on T1-and T2-weighted images.
(19) Arterial oxygen tension was lower in patients with a patent foramen ovale (mean 55 [SD 14] vs 62 [16] mm Hg, p = 0.038).
(20) Peripheral blood specimen showed abnormal lymphoid cells with an oval to cleaved nucleus, rather condensed chromatin, occasional prominent nucleolus, and basophilic cytoplasms with vacuoles which seems to be a T-cell counterpart of B-cell chronic lymphocytic leukemia with mixed cell types.