(n.) The material of repair in fractures of bone; a substance exuded at the site of fracture, which is at first soft or cartilaginous in consistence, but is ultimately converted into true bone and unites the fragments into a single piece.
(n.) The new formation over the end of a cutting, before it puts out rootlets.
Example Sentences:
(1) In later phases, mast cells appeared in the newly formed marrow in the external callus.
(2) The mitotic activities of various cellular components of callus tissues in different periods after tibial fracture of rat were studied with 3H-thymidine labeling and electron radioautographic method.
(3) The fractures, which appeared on roentgenograms as transverse radiolucent zones with variable callus formation, healed slowly or not at all despite treatment with calcium and vitamin D. They resembled pseudofractures (Looser's transformation zones) radiologically, but the biochemical and histologic findings were those of idiopathic osteoporosis rather than osteomalacia.
(4) The normal process of fracture healing was described in which the dual role of external callus was stressed, firstly in providing immobilisation of the fragments and secondly in providing the first bony bridge between the fragments.
(5) Pinwheel inclusions (PWs) were found in cells of callus tissue derived from explants of secondary phloem parenchyma of carrot (Daucus carota) storage root and grown on a basal medium containing zeatin and indoleacetic acid or coconut milk, naphthalene acetic acid, or combinations of these.
(6) However, we failed to demonstrate any remarkable IL-1 inhibitory activity in each fraction after gel filtration high-performance liquid chromatography of the psoriatic scale extracts or in that of extracts from the plantar callus.
(7) The lack of periosteal callus appears to be the result of a small gap and rigid fixation, rather than related to strains induced in the bone.
(8) The ages of the callus were three, five, eight, and 11 days after the fracture, that is, from before the cartilage was demonstrable on Day 5 until the enchondral bone formation started on Day 11.
(9) Biochemical analysis of the callus is reminiscent of bone from early stages of human development and normal fracture healing (e.g.
(10) Origin of roots from calluses was not accompanied by formation of buds.
(11) While some gymnasts seem more ethereal than corporeal, Beth's blisters and calluses have always been obvious.
(12) Bet v I, the major birch pollen allergen, could be extracted easily from pollen, and in low amounts from callus and leaves.
(13) In the surrounding external callus Types I, II, and III were present, but Type III was not noted in the later stages of healing.
(14) Lipids from callus cultures and suspension cultures of higher plants constitute 5 to 8% of the dry tissue's weight.
(15) Histological investigation showed that the medullary cavity was closed after 2-3 weeks, chiefly by endosteal callus.
(16) The plate-fixed bones healed more rapidly, with less periosteal callus and less angulation of the fragments, than those treated with a cast.
(17) These findings indicate that the oxygen tension around the cathode was diminished in advance of the electrically stimulated callus formation.
(18) There is increased metabolism of glycosaminoglycan collagen synthesis, and transformation of fibrous and cartilaginous callus, combined with mineralization of the latter and intensified vascular invasion into bone.
(19) Bone union can be achieved under external fixation through different pathways, ranging from callus-free gap healing under a rigid neutralization configuration to direct-contact healing with periosteal new bone formation under axially dynamized stable fixation.
(20) We compare the gene activity in heterozygotes versus homozygotes, and show variation in activity between plants regenerated independently from the same transformed callus.
Induration
Definition:
(n.) The act of hardening, or the process of growing hard.
(n.) State of being indurated, or of having become hard.
(n.) Hardness of character, manner, sensibility, etc.; obduracy; stiffness; want of pliancy or feeling.
Example Sentences:
(1) Phaso-contrast and interference microscopy investigations revealed in the damaged cells an induration of the sarcoplasmic matrix due to an increase in the dry matter concentration.
(2) The indurations from immediate and delayed hypersensitivity reactions were readily distinguishable, but the hyperthermic responses appeared to contain elements of both immediate and delayed hypersensitivity.
(3) This feature of ILC may also help explain why tumors may be palpable as areas of vague induration or thickening rather than as discrete masses.
(4) Since therapy performed by means of the moving head technique had beneficial effect on chronic prostatitis, plastic induration of the penis and the accompanying sexual potency disturbance, the method is recommended for use.
(5) Such a treatment augmented erythematous delayed reactions in animals immunized with BGG in CFA, but abolished induration at the reaction sites.
(6) While most of the clinical features--including diffuse mucosal inflammation, indurative edema, rash, and lymphadenopathy--are self-limiting, coronary artery aneurysms and the possibility of thrombotic occlusion occurs in up to 20% of children.
(7) We describe 2 patients who presented with chronic painful indurated swelling of one lower limb, thought at the time of referral to be due to chronic venous insufficiency.
(8) In the early postoperative period within an observation period from 3 to 19 months the characteristic and rather common complications in patients operated for hydrocele did not occur (hematocele, chylomas, which are mostly of ex vacuo type because of impaired blood supply and lymph system of the scrotum, abscesses, indurations of the scrotal and testicular tissues, relapses of the hydrocele, etc).
(9) Distal areas in systemic sclerosis (scleroderma), such as the dorsal skin of the hand are more frequently involved and more indurated than proximal areas.
(10) Clinical signs included lesions, indurations, and enlargement of lymph nodes.
(11) The precise basis of induration has not been established, although activation of the clotting system with consequent fibrin deposition has been clearly implicated.
(12) When IL-1 was injected intradermally into the backs of rabbits, the injection sites became indurated, erythematous, and warm to the touch after 4 hrs and annular lesions much like those of erythema chronicum migrans were seen in some animals after 24 hrs.
(13) In contrast to epicutaneous spongiotic contact dermatitis, HLA-DR was only seen on skin appendages and nearby basal keratinocytes in indurated tissue reactions with the exception of the reactions with focal basal cell layer disruption and an indurated patch test performed one week post angry back syndrome.
(14) A 52-year-old woman who had undergone an intrapleural sponge plombage operation because of tuberculosis, and had since shown an uneventful medical history for 35 years, was referred with a complaint of back skin induration over the previous surgical scar.
(15) The prevalence of tuberculous infection in a population is generally estimated from calculating the proportion of tested individuals who react with at least 10 mm of induration to 5 TU of PPD-S tuberculin.
(16) After 16 months, one of the two infected ewes suffered from indurative lymphocytic mastitis.
(17) In the guinea pigs an intradermal dose of PHA-P produced erythema and induration with a maximal response at 24 hours after the injection.
(18) Anergy, defined as no induration to any of four intradermal antigens, was present in 12%.
(19) Either the palpation method or the ball-point pen technique may be used to measure induration that results from TB skin testing.
(20) Similar, but less severe changes were seen at the site of skin tests on BCG-vaccinated subjects who were 'negative' by conventional criteria of measurement of dermal induration and they became greatly exaggerated after successful re-vaccination.