This paper aims at evaluating the frequency of nasal cavity tumors in dogs as well as comparing an endoscopic examination with a histopathological evaluation of the collected biopsy specimens. The study was conducted on 68 dogs. During the endoscopic examination, proliferative lesions were recognized in 20 dogs. During the histopathological examination, neoplastic lesions were confirmed in 95% ...

objective(s): carbon nanotubes have unique mechanical, electrical, and thermal properties, with potential different applications in nanomedicine, electronics, and other industries. these new applications of carbon nanotubes in different industries lead to the increased exposure risk of nanomaterials to human. up to now, all aspects of carbon nanotubes toxicity are not completely clear following...

BACKGROUND Evaluation of the structural and/or functional integrity of the mammary gland (MG) across life stages is integral to the assessment of developmental, reproductive, and carcinogenic risk for environmental chemicals. OBJECTIVES In this commentary I characterize MG assessment recommended in U.S. Environmental Protection Agency, Organisation for Economic Co-operation and Development, a...

conclusions a majority of ovarian masses, especially those diagnosed within a short duration after hysterectomy, are benign. iranian patients with such ovarian masses when asymptomatic and associated with negative tumor markers could be followed up, and prophylactic oophorectomy may not be necessary. results of the 1052 patients with ovarian masses, 45patients (mean age, 53.11 ± 9.56 years) who...

objective(s): some histopathological alterations take place in the ischemic regions following brain ischemia. recent studies have demonstrated some neuroprotective roles of crocin in different models of experimental cerebral ischemia. here, we investigated the probable neuroprotective effects of crocin on the brain infarction and histopathological changes after transient model of focal cerebral...

background: besides of transmitting several diseases to animals, and tick paralysis, ornithodoros lahorensis induce skin lesions. this experiment was done to determine histopathological features of adult o. lahorensis bite on rat. methods: in this investigation adult male rats were infested with o. lahorensis ticks. animals were divided into two groups and euthanized two days and two weeks afte...