kidney neoplasms/kálium

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Lack of renal tumour-initiating activity of a single dose of potassium bromate, a genotoxic renal carcinogen in male F344/NCr rats.

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The renal tumour-initiating activity of potassium bromate (KBrO3), a known genotoxic rat renal carcinogen, was investigated in male F344/NCr rats. 6-wk-old rats were given KBrO3 intragastrically as a single dose of 300 mg/kg body weight, which was confirmed by our preliminary toxicity study as a

Mutations in the VHL gene from potassium bromate-induced rat clear cell renal tumors.

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Potassium bromate (KBrO(3)) is a rat renal carcinogen and a major drinking water disinfection by-product in water disinfected with ozone. Clear cell renal tumors, the most common form of human renal epithelial neoplasm, are rare in animals but are inducible by KBrO(3) in F344 rats. Detection of

Inhibitory effect of potassium citrate on rat renal tumors induced by N-ethyl-N-hydroxyethylnitrosamine followed by potassium dibasic phosphate.

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Potassium dibasic phosphate (PDP) was administered at a concentration of 10% by weight in basal diet to unilaterally nephrectomized Wistar rats previously given 1000 ppm N-ethyl-N-hydroxyethyl-nitrosamine (EHEN) in the diet for 2 weeks. To study the effect of alkalinization on renal mineralization,

Laparoscopic Partial Nephrectomy With Potassium-titanyl-phosphate Laser Versus Conventional Laparoscopic Partial Nephrectomy: An Animal Randomized Controlled Trial.

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OBJECTIVE To explore the feasibility, safety, and short-term results of potassium-titanyl-phosphate (KTP) laser laparoscopic partial nephrectomy (KTP-LPN) vs conventional laparoscopic partial nephrectomy (C-LPN). METHODS Thirty large white female pigs were randomized to KTP-LPN or C-LPN.

[Metabolic and circulatory aspects of hypothermic perfusion of human kidney cancers].

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In this study a report is made on the hypothermal perfusion of 15 renal tumours. Protein synthesis by incorporation of 14C leucine, lipide synthesis by conversion of 14C mevalonic acid and the activity of the sodium-potassium pump by incubation of sections of tissue were used as parameters of the

Potassium bromate enhances N-ethyl-N-hydroxyethylnitrosamine-induced kidney carcinogenesis only at high doses in Wistar rats: indication of the existence of an enhancement threshold.

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As susceptibility to carcinogens varies considerably among different strains of experimental animals, evaluation of dose-response relationships for genotoxic carcinogen in different strains is indispensable for risk assessment. Potassium bromate (KBrO(3)) is a genotoxic carcinogen inducing kidney

Differential expression of potassium ion channels in human renal cell carcinoma.

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OBJECTIVE Ether-a-go-go (EAG) or EAG-related (ERG) voltage-gated potassium ion channels are involved in tumor generation and progression. Their over- and/or misexpression has been demonstrated in various tumors, and inhibition of these channels has suppressed proliferation of various cancer cells.

Immunological assessment of renal cancer patients as evaluated by the lymphocyte adherence inhibition test.

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The lymphocyte adherence inhibition test was used to evaluate tumor immunity toward 2 types of soluble renal cancer antigens extracted from 3 different renal cancer specimens. These extractions were accomplished with either 3 molar potassium chloride or 2.5 per cent butanol, and were tested in 23

Oxidative DNA damage from potassium bromate exposure in Long-Evans rats is not enhanced by a mixture of drinking water disinfection by-products.

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Public drinking water treated with chemical disinfectants contains a complex mixture of disinfection by-products (DBPs) for which the relative toxicity of the mixtures needs to be characterized to accurately assess risk. Potassium bromate (KBrO(3)) is a by-product from ozonation of high-bromide

Melatonin as a potential inhibitor of kidney cancer: A survey of the molecular processes

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Studies have shown that despite the decreasing mortality rates of kidney cancer patients, its incidence is increasing. Therefore, a comprehensive re-evaluation of treatment options is necessary to provide appropriate treatments for the increasing number of patients. Moreover, the side effects caused

[Polyhydramnios, prematurity, dystrophy, polyuria, constipation, nephrocalcinosis and renal tumor: presentation of a classic tubulopathy].

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BACKGROUND A diagnostic workup of a renal mass will rarely lead to the diagnosis of a tubulopathy. We would like to stress the importance of taking a detailed history and of evaluating these findings in the context of the clinical symptoms. METHODS A 3 year old boy with a renal mass, diagnosed due

Characterization and Management of Juxtaglomerular Cell Tumor: Analysis of 9 Cases and Literature Review

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Aims: Juxtaglomerular cell tumor (JGCT) is a rare kidney tumor. This study aimed to report the clinic features of JGCT and our treatment experience. Methods: The medical records of 9 JGCT patients treated in our hospital from 1997

Correlation between induction of DNA fragmentation and micronuclei formation in kidney cells from rats and humans and tissue-specific carcinogenic activity.

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Five chemicals, known to induce kidney tumors in rats, were assayed for their ability to induce DNA damage and formation of micronuclei in primary cultures of rat and human kidney cells and in the kidney of intact rats. Significant dose-dependent increases of DNA fragmentation, as measured by the

Possible application to medium-term organ bioassays for renal carcinogenesis modifiers in rats treated with N-ethyl-N-hydroxyethylnitrosamine and unilateral nephrectomy.

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The effects of the renal tumor promoters; beta-cyclodextrin (beta-C), DL-serine (DL-S), basic lead acetate (LA), trisodium nitrilotriacetate monohydrate (NTA) and potassium bromate (KB), and diethylene glycol (DEG) as a negative control, on early stage of renal carcinogenesis were investigated in

Mechanisms of chemically induced renal carcinogenesis in the laboratory rodent.

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Laboratory studies with classical renal carcinogens in the rat and mouse, as well as research investigation with some of the chemicals proving positive for the kidney in National Toxicology Program carcinogenicity bioassays, have demonstrated the existence of a range of diverse mechanisms underlying

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