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From its use in topical medicine and from restricted information from occupational research, resorcinol doesn't look like irritating to the pores and skin in the concentrations reported. Van Leeuwen et al. There is not any indication as as to if the teratogenic results have been endocrine mediated or not EC, c. In people, dermal exposure to resorcinol has been reported to be associated with thyroid effects, CNS disturbances, purple blood cell adjustments, and a low incidence of skin sensitization. Five of 3.
The bulk of the urine-recovered dye should have been taken up into the attractive layer of the pores and skin and then slowly launched into the circulation. A cumulative four-day absorption assuming cm 2 of scalp was given as zero.

Although thyroid results are a major end-level in both human case-research and animal studies, there's a lack of consistency within the ends in the animal research. Resorcinol brought on no adverse effects in a number of replica and developmental toxicity research in rats and rabbits. Resorcinol just isn't considered to be genotoxic.
Other skin results were hyperplasia, hyperkeratosis, irritation, and sebaceous gland hyperplasia, whereas there were no systemic remedy-associated lesions. With resorcinol, a number of initiation—promotion research with hamsters Maruyama et al. Female Syrian golden hamsters 10—20 per group were handled with two subcutaneous injections of. In a study carried out by Hasegawa et al.
These figures agree nicely with the above exposure estimate based mostly on the Yeung et al.

  • There had been no published animal research exhibiting thyroidal effects with a dose—response relationship that could be used for a tolerable intake.

  • Resorcinol brought on no opposed results in several copy and developmental toxicity studies in rats and rabbits.

  • As mentioned in part 9.

  • Based on the research of Yeung et al.

In in vitro genotoxicity checks, resorcinol showed mostly negative outcomes. Results from all reported in vivo tests for genotoxicity had been unfavorable. Mostly negative results were reported in the initiation—promotion studies performed using a number of species. UV irradiation brought on no increased skin reactions. The iodination process is catalysed by a haem-containing enzyme.
In each species, there have been no antagonistic effects on last mean body weights, haematology, or scientific chemistry parameters, and no chemical-associated gross or microscopic lesions had been observed. In one other examine, rats had been exposed to zero or 0. No thyroid hormone measurements have been carried out.
The acute dermal toxicity of resorcinol was studied in male albino rabbits Koppers Company, Signs of intoxication included salivation, tremors, and convulsions, and handled pores and skin areas showed slight erythema and excessive dryness. Mean information for 3 donors and sixteen replicates point out a plateau in receptor fluid concentration between 24 and 48 h, as mirrored by cumulative absorption values of 1. A steady-state permeability coefficient. For male albino rats pressure not given;.
A concentration of 0. These substances had been discovered to be potent inhibitors of thyroid peroxidase or I organification. Resorcinol as well as 2- and 5-methylresorcinol were reported to be At an iodide concentration of 0.
In one other examine, male F rats have been handled with three intraperitoneal injections of 3-methyl-. Based on the examine of Yeung et al.

The tolerable consumption of 0. It is due to this fact possible that these neurological results are due to the acute impact of the gavage administration. CNS results in people and animals have been related to acute publicity to resorcinol.

According to the outcomes obtained, Daphnia magna is the most sensitive organism, and resorcinol can be categorized as acutely poisonous only to Daphnia. However, this worth is questionable to be used as a limit worth in danger evaluation that is the best focus examined in this examine , and the NOEC might be significantly larger than acknowledged in the research. In the atmosphere, resorcinol is rapidly degraded half-life about 2 h by response with photochemically produced hydroxyl radicals. Under aerobic conditions, resorcinol proved to be readily biodegradable in a take a look at carried out according to OECD TG C, and it's more likely to be biodegraded under anaerobic conditions.