abstract：:Oral administration of stannous chloride (SnCl2) (1.0 mg Sn2$/kg body weight) to rats, twice daily for 28 days, caused a significant increase in the tin (Sn) content and a corresponding decrease of the calcium (Ca) content in the femoral epiphysis, but was without effect on serum Ca, intestinal Ca absorption, and urin...

journal_title：Toxicology letters

authors： Yamaguchi M,Sugii K,Okada S

更新日期：1982-01-01 00:00:00

abstract：:The oral LD50 of hymenoxon in Swiss white mice was found to be 241 +/- 37 mg/kg. No significant sex differences were observed. Pretreatment of male mice for 3 days using doses of 50 and 100 mg/kg hymenoxon failed to alter significantly pentobarbital sleeping time. Hymenoxon was found to be a direct-acting mutagen in t...

journal_title：Toxicology letters

authors： Jones DH,Kim HL

更新日期：1981-12-01 00:00:00

abstract：:A single intravenous injection of 4-hydroxyaminoquinoline 1-oxide in a dose of 9 mg/kg induced exocrine adenomas of the pancreas in a significantly higher rate in male than in female rats. Castration following HAQO administration diminished the incidence of the pancreatic tumors in male rats. A combined treatment with...

journal_title：Toxicology letters

authors： Hayashi Y,Katayama H

更新日期：1981-12-01 00:00:00

abstract：:Intraperitoneal injection (50 mg/kg) of 2-nitropropane (2-NP) induced lipid accumulation, centrilobular necrosis, degranulation of rough endoplasmic reticulum, proliferation of smooth endoplasmic reticulum and mitochondrial abnormalities in rat liver 24 h after exposure. These pathological changes were accompanied by ...

journal_title：Toxicology letters

authors： Zitting A,Savolainen H,Nickels J

更新日期：1981-11-01 00:00:00

abstract：:The early histologic lesions and sequential changes in the development of mirex-induced cataracts were studied in the offspring of lactating female Sherman rats given oral doses of mirex for 5 consecutive days post partum. The earliest histologic change, seen at neonatal day 7, was slight swelling of the individual co...

journal_title：Toxicology letters

authors： Scotti TM,Chernoff N,Linder R,McElroy WK

更新日期：1981-11-01 00:00:00

abstract：:To test the toxicity of some substances, known to affect the nervous system i.e. organic solvents, heavy metals and DDT, their ability to cause cell detachment of cultured mouse neuroblastoma cells was investigated. A TD25 value was obtained by graphic estimation of the concentration needed to cause 25% of the total c...

journal_title：Toxicology letters

authors： Peterson A,Lewné M,Walum E

更新日期：1981-10-01 00:00:00

abstract：:The distribution and acute lethality of i.v. administered 3 micrometers latex spheres were determined in rats. The results extend previous studies demonstrating the similarity between dog and rat in the dynamics of microspheres in these species and the inverse relationship between sphere diameter and hemodynamic toxic...

journal_title：Toxicology letters

authors： Yokel RA,Sabo JP,Simmons GH,DeLuca PP

更新日期：1981-10-01 00:00:00

abstract：:The hepatotoxic effects of the oral administration of a single dose of 50 mg dimethylnitrosamine (DMN)/kg and daily doses of 5 mg and 1 mg/kg, respectively, to cats and lizards were studied by light microscopy. Centrilobular necrosis was the main alteration detected in the liver of cats as in other animal species stud...

journal_title：Toxicology letters

authors： Maduagwu EN,Anosa VO

更新日期：1981-09-01 00:00:00

abstract：:Isolated rat hepatocytes incubated aerobically formed measurable amounts of ethane, a parameter for lipid peroxidation. This ethane formation increased several-fold due to carbon tetrachloride (CCl4) depending on its concentration. Cell damage as measured by trypan blue uptake and lactate dehydrogenase release poorly ...

journal_title：Toxicology letters

authors： de Ruiter N,Ottenwälder H,Muliawan H,Kappus H

更新日期：1981-06-01 00:00:00

abstract：:Potentiality of a protective effect of methionine against hepatotoxic action of vinyl chloride (VC) was assessed on rats, induced with phenobarbital and thereafter exposed to 50 000 ppm VC for 5 h. This extremely high dosage of VC warranted the appearance of drastic symptoms of liver injury in the course of 20 h poste...

journal_title：Toxicology letters

authors： Wisniewska-Knypl JM,Sokal JA,Klimczak J,Dajniak A,Bogdanikowa B

更新日期：1981-05-01 00:00:00

abstract：:The effects of cadmium (Cd) on the immune organs were examined histopathologically. On 2 or 3 days after a single i.p. injection of 1.8 mg Cd/kg body weight into mice, slight loss of body weight, significant decrease of thymus weight and marked increase of spleen weight were observed. Lymph node weight did not show an...

journal_title：Toxicology letters

authors： Yamada YK,Shimizu F,Kawamura R,Kubota K

更新日期：1981-04-01 00:00:00

abstract：:Administration of [14C]chlorferron in a single oral dose of 0.5 and 20 mg/kg body weight to female rats resulted in a urinary excretion of greater than 74% of the given dose during the first 24 h. Approx. 8% of the dose was eliminated in faeces within 7 days. 7 days after dosing, very low levels of [14C]chlorferron-de...

journal_title：Toxicology letters

authors： Malik JK,Lay JP,Klein W,Korte F

更新日期：1981-03-01 00:00:00

abstract：:Pregnant CD-1 mice were given 32 mg/kg of 3,4,3',4'-tetrachlorobiphenyl (TCB) or corn oil vehicle, by gavage, on days 10--16 of gestation. At 1 year of age, the offspring were tested for spontaneous motor activity; the mice were then killed and dopamine (DA) levels and specific DA receptor binding were measured in the...

journal_title：Toxicology letters

authors： Agrawal AK,Tilson HA,Bondy SC

更新日期：1981-03-01 00:00:00

abstract：:Acrylonitrile (AN) showed spectral interaction with hepatic microsomes from mouse, rat and man. Whereas human and rat liver microsomes resulted in ligand AN-binding spectra, mouse liver microsomes behaved differently. Hepatic microsomes from phenobarbital-treated mice with AN showed a type I substrate binding; ligand ...

journal_title：Toxicology letters

authors： Appel KE,Peter H,Bolt M,Bolt HM

更新日期：1981-02-01 00:00:00

abstract：:Blood lead concentrations (Pb-B, microgram/100 ml) was measured in children and adults, both sexes, living in and around Liège (control group, n = 859) and in the urban center of Verviers (exposed group, n = 568) where houses with lead piping are supplied with corrosive drinking water. In control children, the mean Pb...

journal_title：Toxicology letters

authors： Sartor FA,Rondia D

更新日期：1981-01-01 00:00:00

abstract：:The mutagenic potential of fluphenazine hydrochloride was tested on male germ cells of Drosophila melanogaster. The criterion used was sex-linked recessive lethal mutations. Oregon-K males of D. melanogaster, reared on a medium containing 0.01, 0.02 and 0.03 mg/ml of the drug, were screened for sex-linked recessive le...

journal_title：Toxicology letters

authors： Rao KP,Rao MS

更新日期：1980-12-01 00:00:00

abstract：:Benzidine dihydrochloride administered in water at 0, 30, 60, 120, 200 or 400 ppm to 1664 mice induced a total of 368 hepatocellular carcinomas, of which 34 or 9.2% metastasized to the lungs. Liver tumors which were larger and heavier were more prone to metastasize and all that metastasized contained areas of prominen...

journal_title：Toxicology letters

authors： Frith CH,Baetcke KP,Nelson CJ,Schieferstein G

更新日期：1980-12-01 00:00:00

abstract：:A wholesomeness feeding study was carried out in mice fed equal amounts of cod or redfish, comprising 45% of the diet. Three groups of animals received either irradiated [1.75 kGy (175 krad)] fish, non-irradiated fish or stock ration. A 90-day subchronic study, a multigeneration reproduction, a dominant lethality and ...

journal_title：Toxicology letters

authors： van Petten LE,Calkins JE,McConnell RF,Gottschalk HM,Elias PS

更新日期：1980-12-01 00:00:00

abstract：:This study demonstrates an intraspecies difference in elimination of methylmercury between two genetic variant strains of mice. Following a single non-toxic dose of 203Hg labeled methylmercury (0.5 mg Hg/kg i.p.), the half-time of 203Hg elimination in the CBA/J inbred strain was 7.4 days compared to 3.0 days in the CF...

journal_title：Toxicology letters

authors： Kostyniak PJ

更新日期：1980-10-01 00:00:00

abstract：:Two groups, each of 4 rabbits, 17 and 4 months old, respectively, were given s.c. administrations of cadmium (Cd) at a dose level of 0.5 mg/kg/day 6 times per week for up to 32 weeks. In 17-month-old rabbits, low-molecular-weight proteinuria appeared in the 3rd week, proteinuria, glycosuria and anemia in the 6th week;...

journal_title：Toxicology letters

authors： Nomiyama K,Nomiyama H,Yotoriyama M

更新日期：1980-09-01 00:00:00

abstract：:288 BALB/c male mice were allocated to: Group 1-control; Group 2-500 ppm of 2-acetylaminofluorene (2-AAF) in the food, with control water; Group 4-500 ppm of 2-AAF in the food and 250 mg/100 ml of vitamin C in the water; and Group 3-control food and 250 mg% of vitamin C in the water. Major histopathologic changes at t...

journal_title：Toxicology letters

authors： Frith CH,Rule J,Kodell RL

更新日期：1980-09-01 00:00:00

abstract：:The effect of two polyamino-polycarboxylic acids, N-(2-hydroxyethyl) ethylenediamine triacetic acid (HEDTA) and diethylenetriamine penta-acetic acid (DTPA) and two thiol-chelating agents, sodium diethyldithiocarbamate (DDC) and dimercaptosuccinic acid (DMS) on the excretion of manganese (Mn) in rabbits given Mn i.p. w...

journal_title：Toxicology letters

authors： Khandelwal S,Kachru DN,Tandon SK

更新日期：1980-08-01 00:00:00

abstract：:An in vivo intestinal perfusion technique was used to measure the absorption rates of five Cr compounds in black ducks. Cr was absorbed from saline solutions of KCr(SO4)2 and CrO3 at a rate about 1.5 to 2.0 times greater than from solutions of Cr, Cr(NO3)3, and Cr(C5H7O2)3. These results suggest the ionic form of Cr i...

journal_title：Toxicology letters

authors： Eastin WC Jr,Haseltine SD,Murray HC

更新日期：1980-08-01 00:00:00

abstract：:Gaseous butadiene (BUT) was mutagenic towards S. typhimurium strain TA 1530 when the incubation mixture was supplemented with a NADPH-fortified rat liver microsomal preparation; mutagenicity increased with the dose. A significant mutagenic effect was similarly observed when the petri dishes, containing the bacteria bu...

journal_title：Toxicology letters

authors： de Meester C,Poncelet F,Roberfroid M,Mercier M

更新日期：1980-08-01 00:00:00

abstract：:Intraperitoneal (i.p.) and intravenous (i.v.) injection of 44Ti in a chloride solution into mice produced no detectable translocation in body fluids. There was no obvious interorgan exchange up to 16 days after injection. The whole body biological retention half-lives had a mean of 642 days for both routes, another in...

journal_title：Toxicology letters

authors： Thomas RG,Archuleta RF

更新日期：1980-07-01 00:00:00

abstract：:Rats given calcium disodium ethylenediaminetetraacetic acid (CaNa2EDTA), diethylenetriaminepentaacetic acid (DTPA), dimercaprol, p-aminosalicylic acid (PAS), or d-penicillamine (penicillamine) i.p. for 7 successive days showed a significant decrease in the activity of hepatic microsomal benzphetamine N-demethylase. Th...

journal_title：Toxicology letters

authors： Dalvi RR,McGowan C,Ademoyero A

更新日期：1980-06-01 00:00:00

abstract：:The distribution of 54Mn in various organs of pregnant rats and of their 19-day-old fetuses and in non-pregnant female rats of various ages has been studied 18 h after an i.v. injection of 54MnCl2. The results indicate that early neonates are more susceptible to manganese (Mn) than the growing rats. The localization o...

journal_title：Toxicology letters

authors： Kaur G,Hasan SK,Srivastava RC

更新日期：1980-05-01 00:00:00

abstract：:An unusual case of fatal poisoning by delta-9-tetrahydrocannabinol (delta-9-THC)--a physiologically active constituent of cannabis--is reported. Methods of isolation and detection of delta-9-THC was estimated quantitatively by thin-layer chromatography (TLC) and photoelectric densitometry. ...

journal_title：Toxicology letters

authors： Tewari SN,Sharma JD

更新日期：1980-03-01 00:00:00

abstract：:The elution profile of urine from rats given 63Ni i.p. using a Sephadex G-25 column was studied to investigate the chemical form and pattern of nickel (Ni) excretion. Ni was excreted probably as a mixture of complexes with chemical constituents of urine (molecular weight 200-250) within 24 h after 63Ni injection. 63Ni...

journal_title：Toxicology letters

authors： Verma HS,Behari JR,Tandon SK

更新日期：1980-03-01 00:00:00

abstract：:The effect of zinc (Zn) administration on the uptake and retention of cadmium (Cd), copper (Cu) and Zn in liver, kidneys and testes of cadmium exposed rats was investigated. Exposure to Cd caused a significant increase in the uptake of these metals in the 3 organs. The administration of Zn after the Cd exposure had li...

journal_title：Toxicology letters

authors： Behari JR,Tandon SK

更新日期：1980-02-01 00:00:00

abstract：:In C57BL/6 mice, aryl hydrocarbon hydroxylase (AHH) increased 1 day after treatment with 3-methylcholanthrene, and induction of UDP-glucuronyl transferases for 3-hydroxybenzo(a)pyrene, p-nitrophenol and bilirubin in the liver microsomes was observed 2 to 5 days later. In DBA/2 mice, neither AHH nor transferase activit...

journal_title：Toxicology letters

authors： Nemoto N,Takayama S

更新日期：1980-01-01 00:00:00

abstract：:Sex difference was observed in the aryl hydrocarbon hydroxylase (AHH) activity of liver in the C3H/He strain of mice. Treatment with estradiol showed an increase in AHH activity in gonadectomized female mice, but not in males. Testosterone, however, lowered AHH activity in both the gonadectomized male and female. Foll...

journal_title：Toxicology letters

authors： Watanabe M,Tamura Y,Abe T

更新日期：1980-01-01 00:00:00