BACKGROUND/PURPOSE The origin of cholangiolocellular carcinoma (CoCC) is still controversial. To solve this problem, morphometric and immunohistochemical features of CoCC were examined. MATERIALS AND METHODS Cancerous ducts: 15 CoCC lesions from 13 resected and two autopsied cases. Non-neoplastic ducts: 20 specimens of non-cancerous areas of eight resected CoCC cases and of 12 resected hepato...

Rat pancreases were minced and treated with collagenase or collagenase supplemented with chymotrypsin to yield a mixture of ducts, islets, acinar cell clusters, blood vessels, and nerves. Histologically and ultrastructurally, the isolated tissues resembled their in situ counterparts in most respects, the major difference being the destruction of the basement membranes (basal laminae). Ducts ran...

In mammals formation of a sinus vagina is inhibited in the male by endogenous testosterone from the embryonic testes. To answer the question which morphogenetic events during formation of the vagina are influenced by testosterone, we explanted genital tracts of mouse embryos in the indifferent stage of development in organ culture. Half of the explants were treated with testosterone and therefo...

Ducts penetrating the fire compartment are passageways for spreading flames and smoke of igniting deposits attached to inside or fires from outside. Fires through ducts have a fast flame propagation speed difficult extinguish quickly because high-temperature heat. Therefore, in this study, improve risk ducts, need institutional improvement is confirmed by analyzing cases, comparing domestic for...

In mammals formation of a sinus vagina is inhibited in the male by endogenous testosterone from the embryonic testes. To answer the question which morphogenetic events during formation of the vagina are influenced by testosterone, we explanted genital tracts of mouse embryos in the indifferent stage of development in organ culture. Half of the explants were treated with testosterone and therefo...

In mammals formation of a sinus vagina is inhibited in the male by endogenous testosterone from the embryonic testes. To answer the question which morphogenetic events during formation of the vagina are influenced by testosterone, we explanted genital tracts of mouse embryos in the indifferent stage of development in organ culture. Half of the explants were treated with testosterone and therefo...

a 27 year old patient presented with primary infertility of 3 years' duration and also a history of myomectomy (5 years ago) was referred to our infertility clinic for investigation of infertility. the latest hysterosalpingography (hsg) revealed an obstructed left fallopian tube with apparently a unicornuate uterus with luminal contour irregularity and normal left fallopian tube (figure 1). sig...

Study sample No sample size appears to have been determined in the planning phase of the study. In addition, no retrospective power calculations were reported. The authors reported that a group of MIS-TKA patients was compared with a group of 50 traditional TKA patients, but it was unclear how many patients were in the MIS-TKA group. The authors then reported that all patients (n=159) were coho...

AIM Lymphocytic infiltration in the portal triads usually conceals the detection--in haematoxylin and eosin (H&E) stained sections--of bile ducts in two liver diseases: chronic hepatitis and primary biliary cirrhosis. The aim was to assess the number and the characteristics of the bile ducts in those diseases with the aid of an antibody to cytokeratin 7 (CK7). METHODS Consecutive sections fro...

We used pharmacological methods to test the hypothesis that female Dermacentor variabilis salivary ducts dilated when dopamine-stimulated and that dilation was nitric oxide-mediated. Stimulation with dopamine resulted in an increased diameter (19.7%) compared to unstimulated ducts (P<0.005). Pretreatment with L-NAME, an inhibitor of nitric oxide synthase, or cytochalasin D abolished the dilatio...