What's the difference between atop and on?

Atop


Definition:

  • (adv.) On or at the top.

Example Sentences:

  • (1) The presence of BLG in human milk is a common finding in both atopic and non-atopic mothers.
  • (2) There was no statistical difference between atopic children with asthma and those with allergic rhinitis as compared with an age-matched control population of 20 non-atopic children in terms of levels of active T lymphocytes or total T lymphocytes.
  • (3) Three hundred sixty five children and hundred thirty nine adults with atopic dermatitis were divided into three groups.
  • (4) The accumulation of eosinophils in atopic human skin indicates a potent eosinophilotactic activity restricted to the allergic patients.
  • (5) This suggests that common food additives are seldom if ever of significance as precipitating factors in chronic urticaria or atopic dermatitis.
  • (6) Involved and uninvolved psoriatic epidermal cells showed a fourfold decrease in the number of 12-HETE binding sites as compared with normal healthy individuals and patients with atopic dermatitis, while receptor affinity remained unchanged.
  • (7) The work of others has confirmed that increased amounts of total and antigen-specific IgG4 occur in atopic dermatitis, and it is concluded that IgG4 is a blocking antibody for anaphylactic sensitization responses.
  • (8) It has been found that this qualitatively novel way of binding cannot be used for laboratory characterization of atopic subjects.
  • (9) Under unstimulated conditions, atopic cells produced significantly (P = 0.04) less CO products than normal cells.
  • (10) Skin biopsies for immunofluorescent studies were taken from patients with contact dermatitis (positive patch tests), atopic dermatitis and allergic vasculitis for comparison with normal-appearing skin from the same patients, and from healthy controls.
  • (11) Six atopic subjects with grass pollen allergy and six nonallergic healthy volunteers were enrolled into this study.
  • (12) Hyperlinearity was significantly more common in the palms of the patients with atopic dermatitis.
  • (13) In order to evaluate the relevance of these serum parameters as indicators of disease activity, the concentrations of IgE, IL-2R and ECP were measured in serum samples of patients with an acute exacerbation of AD (n = 19) on admission to hospital and every 6 days up to discharge, and compared with those from normal non-atopic controls (n = 15).
  • (14) The authors have demonstrated that in patients with atopic asthma a defect in migration of tissue granulocytes is present.
  • (15) These findings have specific importance in showing that decreased fractional catabolic rate contributes substantially to elevation of IgE in atopic and HIE patients.
  • (16) Twelve non-atopic and 27 atopic preschool children were studied to determine the effect of pertussis booster vaccination on cutaneous histamine sensitivity and IgE antibody response to the naturally-occurring ragweed aeroallergen.
  • (17) Atopic dermatitis (AD) may be worsened by ingested foods or contact with irritants.
  • (18) We have studied some aspects of the atopic syndrome in this population of Southern Italy: frequency of allergic sensitization according to endogenous and extrinsic factors (particularly Parietaria officinalis, a characteristic pollen of the Southern Italian Flora), etc.
  • (19) Atopic dermatitis and Ritter's disease in infants and children frequently present diagnostic as well as therapeutic problems.
  • (20) Examinations of 78 patients with atopic dermatitis have confirmed the important role played by the immune complexes in the immunopathological and inflammatory processes.

On


Definition:

  • (prep.) In continuance; without interruption or ceasing; as, sleep on, take your ease; say on; sing on.
  • (prep.) The general signification of on is situation, motion, or condition with respect to contact or support beneath
  • (prep.) At, or in contact with, the surface or upper part of a thing, and supported by it; placed or lying in contact with the surface; as, the book lies on the table, which stands on the floor of a house on an island.
  • (prep.) To or against the surface of; -- used to indicate the motion of a thing as coming or falling to the surface of another; as, rain falls on the earth.
  • (prep.) Denoting performance or action by contact with the surface, upper part, or outside of anything; hence, by means of; with; as, to play on a violin or piano. Hence, figuratively, to work on one's feelings; to make an impression on the mind.
  • (prep.) At or near; adjacent to; -- indicating situation, place, or position; as, on the one hand, on the other hand; the fleet is on the American coast.
  • (prep.) In addition to; besides; -- indicating multiplication or succession in a series; as, heaps on heaps; mischief on mischief; loss on loss; thought on thought.
  • (prep.) Indicating dependence or reliance; with confidence in; as, to depend on a person for assistance; to rely on; hence, indicating the ground or support of anything; as, he will promise on certain conditions; to bet on a horse.
  • (prep.) At or in the time of; during; as, on Sunday we abstain from labor. See At (synonym).
  • (prep.) At the time of, conveying some notion of cause or motive; as, on public occasions, the officers appear in full dress or uniform. Hence, in consequence of, or following; as, on the ratification of the treaty, the armies were disbanded.
  • (prep.) Toward; for; -- indicating the object of some passion; as, have pity or compassion on him.
  • (prep.) At the peril of, or for the safety of.
  • (prep.) By virtue of; with the pledge of; -- denoting a pledge or engagement, and put before the thing pledged; as, he affirmed or promised on his word, or on his honor.
  • (prep.) To the account of; -- denoting imprecation or invocation, or coming to, falling, or resting upon; as, on us be all the blame; a curse on him.
  • (prep.) In reference or relation to; as, on our part expect punctuality; a satire on society.
  • (prep.) Of.
  • (prep.) Occupied with; in the performance of; as, only three officers are on duty; on a journey.
  • (prep.) In the service of; connected with; of the number of; as, he is on a newspaper; on a committee.
  • (prep.) Forward, in progression; onward; -- usually with a verb of motion; as, move on; go on.
  • (prep.) Forward, in succession; as, from father to son, from the son to the grandson, and so on.
  • (prep.) Adhering; not off; as in the phrase, "He is neither on nor off," that is, he is not steady, he is irresolute.
  • (prep.) Attached to the body, as clothing or ornament, or for use.
  • (prep.) In progress; proceeding; as, a game is on.

Example Sentences:

Words possibly related to "atop"