Ethylene is a stimulant to increase natural rubber latex. After ethylene application, both fresh yield and dry matter of latex are substantially improved. Moreover, we found that ethylene improves the generation of small rubber particles. However, most genes involved in rubber biosynthesis are inhibited by exogenous ethylene. Therefore, we conducted a proteomics analysis of ethylene-stimulated ...

A spectrum of proteins derived from the rubber tree, Hevea brasiliensis, reacted with IgE in the plasma from persons allergic to natural rubber latex. Latex B-serum, C-serum and rubber particle membrane proteins were all found to contain allergenie proteins. Variations were observed in the reactivity of the latex, IgE positive plasma to the different proteins. Monoclonal antibodies have been de...

Natural rubber has unique physical properties that cannot be replaced by products from other latex-producing plants or petrochemically produced synthetic rubbers. Rubber from Hevea brasiliensis is the main commercial source for this natural rubber that has a cis-polyisoprene configuration. For sustainable production of enough rubber to meet demand elucidation of the molecular mechanisms involve...

A natural rubber degrading candidate was isolated from a soil sample from Aswan, Egypt. The strain was able to grow on natural rubber as a sole source for carbon and energy. According to its degradation behavior, it grew adhesively and in direct contact with the rubber substrate and led to disintegration of the material during cultivation. Furthermore, this strain was not able to form a clear z...

Allergy to natural rubber latex (NRL) gloves in healthcare workers is well recognized, and usually presents as immunological contact urticaria and sometimes anaphylaxis. Latex gloves can also cause allergic contact dermatitis, mostly because of rubber accelerators. As latex sensitivity is well known in healthcare settings, synthetic latex-free gloves are widely used. The most popular latexfree ...

Latex exploitation enhances latex regeneration in rubber trees. The latex exploitation-caused latex flow lasts from 10 min to a few hours, which is convenient for exploring the transcript profiling of latex metabolism-related genes at the different stages of latex flow. In the present study, the expression pattern of 62 latex metabolism-related genes involved in water transportation, carbohydra...

To compare the Immediate skm test reactivity ofvanous latex (natural rubber) surgical and cleanmg gloves, pnck tests were performed on 40 latex-allergic persons, 26 of whom were sensitized by surgical and 14 by cleanmg latex gloves. 6/17 surgical gloves tested and 1/2 cleanmg gloves caused positive reactions m almost all (over 87%) of the allergic subjects. In contrast, the frequencies of posit...

UNLABELLED Hypersensitivity reactions to natural rubber latex have increased recently, especially among people with high exposure to latex allergens. Hypersensitivity reactions to latex are related to many conditions like occupational asthma. Our study was performed to determine the prevalence of hypersensitivity to natural rubber latex and potential food cross reactions in operation room perso...

Hypersensitivity to rubber is usually reported as contact dermatitis due to substances used in its processing; however, recent reports in patients attribute IgE mediated reactions specifically to latex and not to chemical additives. These patients were first seen with contact urticaria, but tissue contact with both medical and non-medical latex rubber may also precipitate anaphylactic reactions...