Search Results - "'t Hart, L A"

Acquired resistance to type II collagen‐induced arthritis in rhesus monkeys is reflected by a T cell low‐responsiveness to the antigen by BAKKER, N. P. M., ERCK, M. G. M., HART, L. A. T, JONKER, M.

“…SUMMARY Ten out of 14 rhesus monkeys developed arthritis after a single immunization with bovine type II collagen (B‐CII). In contrast to primary resistant…”
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Activity-guided isolation and identification of Azadirachta indica bark extract constituents which specifically inhibit chemiluminescence production by activated human polymorphonuclear leukocytes by van der Nat, J M, van der Sluis, W G, 't Hart, L A, Van Dijk, H, de Silva, K T, Labadie, R P

“…The A. indica crude aqueous bark extract inhibits the generation of chemiluminescence by activated human polymorphonuclear leukocytes (PMN). Guided by this…”
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Inhibitory activity of Jatropha multifida latex on classical complement pathway activity in human serum mediated by a calcium-binding proanthocyanidin by Kosasi, S, Hart, L A, van Dijk, H, Labadie, R P

“…This study isolates and characterizes the anti-complement constituent(s) present in the latex of Jatropha multifida, in an attempt to explain the traditional…”
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The anti‐arthritic and immunosuppressive effects of cyclosporin A on collagen‐induced arthritis in the rhesus monkey by BAKKER, N. P. M., BESOUW, N., GROENESTEIN, R., JONKER, M., 'tHART, L. A.

“…SUMMARY The influence of cyclosporin A (CsA) on type II collagen‐induced arthritis (CIA) in the rhesus monkey has been investigated. CsA was administered…”
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Effects of low molecular constituents from Aloe vera gel on oxidative metabolism and cytotoxic and bactericidal activities of human neutrophils by 't Hart, L A, Nibbering, P H, van den Barselaar, M T, van Dijk, H, van den Berg, A J, Labadie, R P

“…In traditional South-East Asian medicine the therapeutic value of the parenchymous leaf-gel of Aloe vera for inflammatory-based diseases is well-reputed. The…”
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A rapid and sensitive micro-assay to determine the capacity of quinones to undergo redox cycling by Hart, L A, van der Wal, N A, Koster, A S, Labadie, R P

“…Using a series of aziridinyl-benzoquinones it is shown that the conversion of oxyhemoglobin to methemoglobin in sheep erythrocytes is correlated with the…”
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Analysis of the antigen-induced in vitro differentiation of human peripheral blood B cells: stimulation with ovalbumin induces the transition from the resting state into the excited state by T HART, L. A, HEIJNEN, C. J, ZIJLSTRA, J, BALLIEUX, R. E

“…Human peripheral blood B lymphocytes, when cultured for 6 days with ovalbumin in the presence of T cells and monocytes, can differentiate into plaque-forming…”
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An anti-complementary polysaccharide with immunological adjuvant activity from the leaf parenchyma gel of Aloe vera by t'Hart, L A, van den Berg, A J, Kuis, L, van Dijk, H, Labadie, R P

“…The aim of the study is to develop new substances with immunomodulatory activity. To this end, extracts from plants used in traditional medicine are used as…”
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An ethnopharmacognostic approach to the search for immunomodulators of plant origin by Labadie, R P, van der Nat, J M, Simons, J M, Kroes, B H, Kosasi, S, van den Berg, A J, t' Hart, L A, van der Sluis, W G, Abeysekera, A, Bamunuarachchi, A

“…The search for immunomodulating plant constituents through basic and field inquiries into the literature and practices of traditional Indian medicine is…”
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Characterization of anti-complement compounds from Azadirachta indica by van der Nat, J M, Hart, L A, van der Sluis, W G, van Dijk, H, van den Berg, A J, de Silva, K T, Labadie, R P

“…The crude aqueous extract of Azadirachta indica bark possesses an inhibitory activity on both classical (CP) and alternative pathway (AP) activation of human…”
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Evidence that superoxide-anion, produced by PMA-activated human polymorphonuclear leukocytes, is the cytolytic agent for rabbit, but not for sheep red blood cells by Hart, L A, van Enckevort, P, van Kessel, K P, van Dijk, H, Labadie, R P

“…The lysis of sheep and rabbit red blood cells (SRBC and RRBC, respectively) upon exposure to PMA-activated human polymorphonuclear leukocytes (PMN) was…”
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Generation of high-rate ovalbumin-specific antibody-secreting cells in cultures of human peripheral blood B cells obtained from non-immunized blood donors by Hart, L A, Zijlstra, J, Heijnen, J J, Ballieux, R E

“…When human peripheral blood B cells are cultured for 6 days with the T cell-dependent peptide antigen ovalbumin (OA) in the presence of antigen-presenting…”
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Immunomodulation by quinones. A model for the use of quinones in the treatment of inflammation by 'T Hart, L A

“…The therapeutic application of quinones in areas other than oncology, such as in chronic inflammation, has been proposed. However, because of the adverse…”
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Labaditin, a novel cyclic decapeptide from the latex of Jatropha multifida L. (Euphorbiaceae) : Isolation and sequence determination by means of two-dimensional NMR by Kosasi, S., van der Sluis, W.G., Boelens, R., Hart, L.A.'t, Labadie, R.P.

“…An immunologically active novel cyclic decapeptide, consisting of 1 Ala, 2 Gly, 1 Ile, 2 Thr, 2 Trp and 2 Val, has been isolated from the latex of Jatropha…”
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Immunodulatory compounds from Picrorhiza kurroa: isolation and characterization of two anti-complementary polymeric fractions from an aqueous root extract by Simons, J M, Hart, L A, van Dijk, H, Fischer, F C, de Silva, K T, Labadie, R P

“…Two aqueous root extracts of Picrorhiza kurroa, one prepared by extraction at 4 degrees C and the other by refluxing, were purified using the guidance of…”
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In vitro immunosuppressive activities of recently developed anthracycline cytostatics by van der Nat, J M, Beijnen, J H, Driebergen, R J, Thart, L A, van Dijk, H, Underberg, W J, Labadie, R P

“…The effects of a series of seven anthracycline cytostatics on various human leukocyte functions, namely the production of Migration Inhibition Factor (MIF) by…”
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Ovalbumin-specific human B-cell activation and maturation. The absence of final maturation is due to the incapacity of ovalbumin-activated T cells to produce maturation factors by Hart, L A, Zijlstra, J, Heijnen, J J, Ballieux, R E

“…By means of a panel of monoclonal antibodies it is demonstrated that, in cultures of human peripheral blood mononuclear cells (PBMC) with the T-cell-dependent…”
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