ovine pulmonary adenocarcinoma (opa) is a contagious and transmissible lung cancer of sheepresembling human bronchiolo-alveolar carcinoma. in the present study, lungs of 9400 sheep slaughtered infars province, iran were examined morphopathologically. the opa was diagnosed in the lungs of 21(0.22%) out of 9400 sheep. frequency of involvement of different lobes in the affected lungs was includeda...

Abstract B lymphocytes are adaptive immune cells responsible for the production of antigen specific antibodies and release pro- anti-inflammatory cytokines. Pro-inflammatory cells, often termed atypical (at cell) a heterogenous population associated with aging, infection, autoimmunity. Aryl hydrocarbon receptor (AHR) is ligand-activated transcription factor important xenobiotic metabolism. Howe...

with an occurrence of 7%, appendicitis is one of the most common abdominal emergencies requiring surgery. since the variation in positions and length of the appendix may produce varying symptoms and signs which mimic other diseases, having knowledge of the variations in the position of the appendix is of significant importance. here, we present a 77-year-old man with acute appendicitis presenti...

introduction gradenigo’s syndrome consists of ophthalmoplegia, facial palsy, and facial pain due to involvement of abducens and facial nerves as well as the trigeminal ganglion. this involvement is due to infections of ipsilateral middle ear and mastoid bone. case presentation a 14-month-old girl was referred to a private clinic with chief complaint of acute and sudden-onset right ophthalmopleg...

recently, extensive efforts have been made to understand the rate of energy expenditure and the weight gain associated with atypical antipsychotic treatment, including identification of markers of obesity risk. in recent years, leptin, an adipocyte hormone, has gained significant interest in psychiatric disorders. s100b has been considered as a surrogate marker for astrocyte-specific damage in ...

a dead canary from a mixed species zoological garden was presented for diagnostic necropsy. cachexia with prominent atrophy of pectoral muscles, yellowish brown discoloration of the liver and kidney, dark brown to black intestinal contents and moderate proventricular dilatation with some degree of catarrhal gastritis were the significant macroscopic findings. parenchymatous organs like the live...

B lymphocytes are critical for effective immunity; they produce antibodies and cytokines, present antigens to T lymphocytes and regulate immune responses. However, because of the inherent randomness in the process of generating their vast repertoire of antigen-specific receptors, B cells can also cause diseases through recognizing and reacting to self. Therefore, B lymphocyte selection and resp...

background: mycobacterium marinum infection has a worldwide distribution and the organism occupies many aquatic environments. infections in human consist of nodular cutaneous lesions that can progress to tenosynovitis, arthritis, and osteomyelitis. case presentation: a 27-year-old man was presented with a history of swelling and exudative erythematous lesions and pustules of the right forearm. ...

background: bisphosphonates (bps) are used extensively for managing the osteoporosis. there are some controversies on atypical fractures of femur that associated with increase in cortical thickness (ct) and bps' use. in this study, the effects of alendronate consumption were studied on femoral ct as a predictor for atypical fracture.   methods: forty nine post-menopausal women aged 50-70 years ...

Azaspiracids (AZAs) are polyether marine dinoflagellate toxins that accumulate in shellfish and represent an emerging human health risk. Although there have been no deaths associated with the AZA toxins, humans exposed to AZAs experience severe gastrointestinal symptoms. This toxin class has been shown to be highly cytotoxic, a teratogen to developing fish, and a possible carcinogen in mice. Ju...