boric acid/atrofia

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Impact of boric acid exposure at different concentrations on testicular DNA and male rats fertility.

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The aim of this study was to investigate the consequences of exposure to three levels of boric acid (BA) on male rats reproduction, fertility and progeny outcome, with emphasis on testicular DNA level and quality. Adult male rats (12 weeks old) were treated orally with 125, 250 and 500 mg/kg bwt/d

NTP Toxicology and Carcinogenesis Studies of Boric Acid (CAS No. 10043-35-3) in B6C3F1 Mice (Feed Studies).

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Boric acid is a component of cosmetics and pharmaceuticals and is also used in numerous industrial processes. Earlier long-term studies did not demonstrate a carcinogenic effect in Sprague-Dawley rats. Because of potential widespread human exposure, corroborative evidence was sought in a second

The reproductive toxicity of boric acid.

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Previous studies on the reproductive toxicity of boric acid have indicated that male rodents suffer testicular atrophy after treatment. There were, however, no studies of the potential effects on female fertility or on the neonate. In addition, no study described the development of the testicular

Availability of sperm examination for male reproductive toxicities in rats treated with boric acid.

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Sperm morphological examination, computer-assisted sperm analysis (CASA) and histopathologic examination of the testis and epididymis were performed for male rats treated orally with boric acid for 3 weeks at dosage levels of 50, 150 and 500 mg/kg/day, and treated males were mated with untreated

Collaborative work to evaluate toxicity on male reproductive organs by repeated dose studies in rats 24). Testicular toxicity of boric acid after 2- and 4-week administration periods.

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To assess whether or not male reproductive toxicity can be evaluated in a 2-week administration study, boric acid was administered daily by oral gavage to male Jcl:Wistar rats at dosage levels of 0, 300 and 500 mg/kg for 2 and 4 weeks, and the results obtained with the two different treatment

Communication: Photoionization of degenerate orbitals for randomly oriented molecules: The effect of time-reversal symmetry on recoil-ion momentum angular distributions.

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The photoelectron asymmetry parameter β, which characterizes the direction of electrons ejected from a randomly oriented molecular ensemble by linearly polarized light, is investigated for degenerate orbitals. We show that β is totally symmetric under the symmetry operation of the point group of a

The effects of boric acid (BA) on testicular cells in culture.

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High-dose boric acid (BA) exposure produces testicular lesions in adult rats characterized by inhibited spermiation that may progress to nonrecoverable atrophy. The mechanism for the testicular toxicity of BA is unknown. To examine possible direct effects, the present study evaluated selected

Mechanism of the testicular toxicity of boric acid in rats: in vivo and in vitro studies.

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High-dose boric acid (BA) exposure produces testicular lesions in adult rats characterized by inhibited spermiation (IS) that may progress to atrophy. In vivo and in vitro studies addressed possible mechanisms. In vivo, boron tissue disposition was examined, since no detailed data existed, and

Mitochondrial dysfunction is involved in the toxic activity of boric acid against Saprolegnia.

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There has been a significant increase in the incidence of Saprolegnia infections over the past decades, especially after the banning of malachite green. Very often these infections are associated with high economic losses in salmonid farms and hatcheries. The use of boric acid to control the disease

Reproductive toxicity of boric acid in Swiss (CD-1) mice: assessment using the continuous breeding protocol.

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The potential reproductive toxicity of boric acid (BORA) in CD-1 mice (Swiss) was evaluated using the Reproductive Assessment by Continuous Breeding (RACB) Protocol. BORA was administered in the feed for 27 weeks to male and female Swiss (CD-1) mice at concentrations of 0, 1000, 4500, or 9000 ppm.

Histopathology changes in the rainbow trout (Onchorhyncus mykiss) consuming boric acid supplemented fish fodder

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Objective: Even though boron (B), as a trace micronutrient, occurs in natural waters and organisms, its high concentration could cause harmful and even toxic for organisms. The aim of present study was to investigate the effects of boric

Clean the Ni-Rich Cathode Material Surface With Boric Acid to Improve Its Storage Performance

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The existence of residual lithium compounds (RLCs) on the surface of layered Ni-rich materials will deteriorate the electrochemical properties and cause safety problem. This work presents an effective surface washing method to remove the RLCs from

Activation of the EIF2α/ATF4 and ATF6 Pathways in DU-145 Cells by Boric Acid at the Concentration Reported in Men at the US Mean Boron Intake.

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Fruits, nuts, legumes, and vegetables are rich sources of boron (B), an essential plant nutrient with chemopreventive properties. Blood boric acid (BA) levels reflect recent B intake, and men at the US mean intake have a reported non-fasting level of 10 μM. Treatment of DU-145 prostate cancer cells

Testicular toxicity of boric acid (BA): relationship of dose to lesion development and recovery in the F344 rat.

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High-dose boric acid (BA) produces testicular lesions in adult rats, characterized by inhibited spermiation followed by atrophy. The present study addressed whether inhibited spermiation can be separated from atrophy based on dose, compared testis boron (B) dosimetry to lesion development,

Circular dichroism in photoionization of degenerate orbitals: Spin-polarized photoelectrons and spontaneous separation of oriented photoions.

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This work investigated the circular dichroic effect on the photoionization integral cross section of molecules in conjunction with irreducible tensor theory and effective operator formalism. The results show that the dichroic effect can be non-zero for complex orbitals, but becomes zero for all real

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