Acquired tolerance to BSA in rabbits was terminated following the injection of certain preparations of altered BSA. Injections of Freund's adjuvant containing BSA complexed to anti-BSA, heat-denatured BSA, acetyl-BSA, picryl-BSA, or arsanil-BSA failed to terminate the tolerant state. Except in an occasional tolerant rabbit, injections of these preparations failed to cause the production of prec...

In earlier observations with the picryl system, it was concluded that contact sensitivity was a form of delayed (cellular) hypersensitivity to conjugates of sensitizer with autologous proteins indistinguishable in its immunological mechanism from other classical forms of delayed hypersensitivity to proteins. This conclusion has been confirmed and extended with the picryl and chlorbenzoyl chlori...

In the title picryl-substituted ester, C13H6BrN3O8, the mean plane of the central ester C-O-C(=O)-C fragment (r.m.s. deviation= 0.0186 Å) is rotated by 84.73 (7)° and 19.92 (12)° to the picryl and phenyl rings, respectively. In the crystal, the mol-ecules are linked by C-H⋯O inter-actions, forming centrosymmetric dimers enclosing R (2) 2(10) and R (2) 2(22) ring motifs along [001] and further h...

The fate of (14)C-labeled allergens injected intradermally into guinea pigs, namely picryl chloride (PCl*) and 2:4 dinitrochlorobenzene (DNCB*), was followed during the induction period of delayed hypersensitivity. Both chemicals were applied in a single injection into one ear in amounts that approached their minimal sensitizing doses (PCl, 0.25 microg; DNCB, 5.0 microg). Radioactivity in the v...

Natural ingredients are increasingly being used to prevent the formation of acrylamide during food processing. This study investigated antioxidant activities Ocimum basilicum (basil), Lippia adoensis var. (kesse), koseret (koseret), Rosmarinus officinalis (rosemary), and Thymus schimperi (tosign) extracts their reduction effect in asparagine-glucose model system. Folin-Ciocalteu aluminum chlori...

The aim of this study was to investigate the antioxidant and enzyme inhibition activities methanol extracts prepared from Klasea serratuloides (DC) Greuter & Wagenitz subsp. karamanica B. Dogan A. Duran with Soxhlet, ultrasonic extraction, maceration methods. 1,1-Diphenyl-2-picryl hydroxyl (DPPH) quenching assay 2,2’-azinobis-3- ethylbenzothiozoline-6-sulfonic acid (ABTS) cation decolor...

The effect of vitamin A deficiency on the immune response to epizootic diarrhoea of infant mice (EDIM) rotavirus was studied in mice. The virus was given by oral dosing or by intraperitoneal injection. For oral challenge, weanling mice were fed on either a control or vitamin A-deficient diet ad lib. or pair-fed the control diet to the intake of the vitamin A-deficient group. A fourth group was ...

The present study was performed to examine whether the leaves of Saururus chinensis (LOUR.) BAILL (SC), an herb used for the management of various skin diseases including atopic dermatitis (AD) in Eastern countries, inhibited the development of AD-like skin lesions in NC/Nga mice which was induced by repeated application of picryl chloride (PiCl). The efficacy of SC was judged by measurement of...

Objective: Mad honey (Rhododendron honey) is produced by honeybees from Rhododendron flowers and contains grayanotoxins, antioxidants, flavonoid phenolic properties. The mad samples are collected Turkey's Black Sea region local residents sold as in free market conditions. This study was planned to evaluate the total content, content antioxidant capacity protein profiles with SDS-Page electropho...