Trachea is lined by a pseudostratified epithelium which usually expresses a complex mixture of stratified as well as simple epithelial-type cytokeratins. In the present work, the cytokeratin expressions was studied immunohistochemically in the tracheal epithelium and gland of human fetus at 14, 26 and 32 weeks of gestation. The primary antibodies used were CK7, 8, 10, 14, 18, AE8, 5D3, MNFl16 and AE3. In PAS-hematoxylin stain, the tracheal eithelium was composed of pseudostratified ciliated columnar type and consisted of surface, intermediate and basal layers regardless of gestational ages. The PAS positive cells, however, were decreased in number in proportion to gestational ages. The tracheal gland was not fully differentiated at 14 weeks of gestation, and had well differentiated secretory portions consisting mucous and serous cells at 26 and 32 weeks of gestation. The mucous cells and luminal border of the duct were positive for PAS stain. The tracheal eithelium showed different immunoreactivity between cartilageous and membranous portions. In general, CK7 and 5D3 were expressed in surface cells, AE8 in intermediate cells, and MNFl16 and AE3 in the cells of all layers. At 14 weeks of gestation, the tracheal epithelium immunoreacted for CK7, AE8, 5D3, MNFl16 and AE3. The premordium of tracheal gland was positive for 5D3, MNFl16 and AE3. The tracheal epithelium at 26 and 32 weeks of gestation showed same staining properties to those at 14 weeks of gestation. The duct cells at 26 weeks of gestation were immunoreactive for CK7, 8, 14, 18, AE8, 5D3, MNFl16 and AE3, and those at 32 weeks of gestation were immunoreactive for CK7, 14, 5D3, MNFl16 and AE3. The acinar cells at 26 and 32 weeks of gestation were positively stained for CK7, 8, 18, 5D3, MNFl16 and AE3. These results suggest that CK7 and 5D3 may serve as useful markers for mature cilated cells, AE8 (CKl3) for immature ciliated cells, and CKl4 for duct cells in tracheal epithelium and gland.
Acinar Cells ; Antibodies ; Epithelium* ; Fetus* ; Gestational Age ; Humans* ; Immunohistochemistry ; Keratins* ; Phenobarbital ; Pregnancy ; Trachea

No abstract available.
Humans

No abstract available.
Breast* ; Hamartoma*

A secondary cleft lip nasal deformity can be corrected by many procedures including central lip tissue transfer, forked flap, nasal floor and alar base advancement, nasal skin flaps and composite graft. These procedures have been applied for many years, but each one has some conspicuous residual problems. We propose triple V-Y advancement flaps, which we have performed on 13 secondary cleft lip and nasal deformity patients over the past 6 years. The W-shaped triple reverse V-shaped incision easily exposed the alar cartilages. We made the advancement and rotation of the nasal skin flap to lengthen the columella and project the nasal tip. Postoperatively, the columella length and nasolabial angle were found to be increased by an average of 3.7 mm and 42 degrees, respectively. In lateral view, a relatively natural nasal line was achieved. The scar in the nasal tip posed few problems. This procedure should be useful for the correction of the secondary cleft lip nasal deformity.
Cartilage ; Cicatrix ; Cleft Lip* ; Congenital Abnormalities* ; Humans ; Lip ; Skin ; Transplants

No abstract available.
Angiotensin II* ; Angiotensins* ; Animals ; Endocrine System* ; Rats*

No abstract available.
Pylorus*

No abstract available.
Cardiopulmonary Resuscitation* ; Telephone*

No abstract available.
Emergencies* ; Humans ; Prospective Studies*

Castlernan disease is a rare lymphoproliferative disorder of uncertain cause, which most commonly involves mediastinum and rarely affects retroperitoneal, axillary or cervical lymph nodes. Authors present CT the and MRI findings of a cases of Castleman disease involving cervical lymph nodes. On CT and MR. There were multiple lymph nodes enlargement with homogeneous enhancement along the bilateral internal jugular and spinal accessory lymph node chain.
Giant Lymph Node Hyperplasia* ; Lymph Nodes ; Lymphoproliferative Disorders ; Magnetic Resonance Imaging* ; Mediastinum ; Neck*

Castlernan disease is a rare lymphoproliferative disorder of uncertain cause, which most commonly involves mediastinum and rarely affects retroperitoneal, axillary or cervical lymph nodes. Authors present CT the and MRI findings of a cases of Castleman disease involving cervical lymph nodes. On CT and MR. There were multiple lymph nodes enlargement with homogeneous enhancement along the bilateral internal jugular and spinal accessory lymph node chain.
Giant Lymph Node Hyperplasia* ; Lymph Nodes ; Lymphoproliferative Disorders ; Magnetic Resonance Imaging* ; Mediastinum ; Neck*