Trichoadenoma is a rare skin tumor first described by Nikolowski. There are variable clinical features and tumors have been diagnosed as cysts, basal cell epithelioma and seborrheic keratosis. The microscopic feature mainly consists of numerous cysts surrounded by eosinophilic cells. Trichoadenoma is benign and treatment is by simple excision. We report a case of trichoadenoma on the nose...

A new disease causing wilt and death of adult plants of Phaseolus vulgaris was discovered in plastic-house crops of southeast Spain in 2004. The causal agent was shown to be a Pythium species with a unique type of oogonium ornamentation different from any of the described species. Zoospores were not observed, but globose or subglobose hyphal swellings, intercalary or terminal, were frequently f...

Necturus taste buds contain two types of basal cells: presumptive stem cells and Merkel-like basal cells. Both types of basal cells are small round cells located at the base of the taste bud, indistinguishable from each other with light microscopy. However, with electron microscopy, autoradiography, or immunocytochemistry, these two types of basal cells can be easily distinguished. We isolated ...

Centrin, a 20 kDa calcium-binding protein, is a constituent of contractile basal body-associated fibers in protists and of various centrosomal structures. A construct inducing centrin RNAi was used to study the effect of centrin deficiency in Chlamydomonas. Transformants contained variable amounts of residual centrin (down to 5% of wild-type) and lacked centrin fibers. They displayed a variable...

This study aimed to describe the morphoanatomical characters of fruits, seeds and seedlings, in addition characterizing anatomy leaves trunk species Protium altsonii Sandwith. The wood were collected Sustainable Development Reserve Iratapuru River (SDR), Amapá. Cross longitudinal sections cut with a rotary microtome. As for characteristics, it was observed that fruits are globose ovoid, slightl...

During CNS development, cell migrations play an important role, adding to the cellular complexity of different regions. Earlier studies have shown a robust migration of cells from basal forebrain into the overlying dorsal forebrain during the embryonic period. These immigrant cells include GABAergic neurons that populate the cerebral cortex and hippocampus. In this study we have examined the fa...

Abstract The planktonic Oikopleura dioica belongs to Tunicata, the probable sister taxon Craniota, and might show plesiomorphic characters, conserved from common lineage of Tunicata Craniota. In O. a pericardium in position similar other chordates but also heart craniates is found. Surprisingly, little known about ultrastructure . Here, we based on electron microscopy that completely lined by s...

The prostate contains two major epithelial cell types - luminal and basal cells - both of which develop from urogenital sinus epithelium. The cell linage relationship between these two epithelial types is not clear. Here we demonstrate that luminal cells can develop independently of basal cells, but that basal cells are essential for maintaining ductal integrity and the proper differentiation o...

Dear Editor, A 35-year-old man presented with severe headache and left sided hemiparesis since one day prior to admission. He reported frequent bouts of oral and genital aphthous ulcers, an attack of deep venous thrombosis of left lower extremity, one episode of right knee arthritis, and several attacks of headache, neck rigidity, and fever. He had been a victim of mustard-gas poisoning at the ...

Patch clamp experiments were conducted to study the effects of basal lamina (basement membrane) of chicken ovarian follicle on membrane Ca(2+) currents in differentiated chicken granulosa cells in a homologous system. The whole cell patch clamp technique was used to simultaneously monitor membrane capacitance (an indirect measure of total cell surface area) and currents flowing through voltage-...