No abstract available.
Dental Porcelain* ; Resin Cements*

OBJECTIVE: The effects on spermatogenesis by expression of vascular endothelial growth factor (VEGF) and endothelin-1 (ET-1) were investigated. MATERIALS AND METHODS: Testicular specimens were obtained from 40 infertile males due to primary testicular failure and from 10 fertile males with other urologic problems. The specimens of infertile males were devided into 4 groups according to histologic findings; Sertoli cell only syndrome (A), maturation arrest (B), hypospermatogenesis (C) and sloughing and disorganization (D). VEGF and ET-1 expression were detected with immunohistochemical stain. RESULTS: VEGF expression on Leydig cell was detected in all cases. But, VEGF expression rates on germ cell were significantly higher in infertile group B, C, D compared to that of the control group (p<0.05). ET-1 expression rates on Leydig cell was significantly lower in all infertile group compared to that of the control group (p<0.05). But, ET-1 expression rates on Sertoli cell was significantly higher in all infertile group compared to that of the control group (p>0.05). In germ cell of infertile group, LH, FSH and prolactin were significantly decreased, and estradiol is increased in positive stain group on ET-1 immunohistochemical stain (p<0.05). VEGF and ET-1 expression were not correlated mean seminiferous tubule diameter (p>0.05). CONCLUSIONS: Abnormal spermatogenesis would be reflected in VEGF expression in germ cell.
Endothelin-1* ; Estradiol ; Germ Cells ; Humans ; Male ; Oligospermia ; Prolactin ; Seminiferous Tubules ; Sertoli Cell-Only Syndrome ; Spermatogenesis ; Testis* ; Vascular Endothelial Growth Factor A

Various dermatological complications have been reported following the BCG vaccination although this vaccination has been recommended to all healthy infants in our country. A 4-months-old boy, who had a BCG vaccination three weeks after birth, developed erythematous papules and pustules on the whole body, especially on the face and upper extremities. Two erythematous subcutaneous soft nodules were also noted on the left side of the neck. A biopsy specimen from the right forearm revealed caseous necrosis surrounded by a granulomatous inflammation consisting of epithelioid cells and lymphocytes. It was centered along the axis of the damaged pilosebaceous follicle. No acid-fast bacilli could be demonstrated by AFB stain. A marked improvement of his skin eruptions was observed after anti-tuberculosis medication. However, nod-ules in the cervical area perforated spontaneously and healed leaving scars several months after the cutaneous eruptions subsided. The clinical and histologic findings and a good response to anti-tuberculous therapy support the diagnosis of papular tuberculid and suppurative lymphadenitis after BCG vaccination.
Axis, Cervical Vertebra ; Biopsy ; Cicatrix ; Diagnosis ; Epithelioid Cells ; Forearm ; Humans ; Infant ; Inflammation ; Lymphadenitis* ; Lymphocytes ; Male ; Mycobacterium bovis ; Neck ; Necrosis ; Parturition ; Skin ; Tuberculosis, Cutaneous* ; Upper Extremity ; Vaccination*

High septal deformities exert pressure on upper lateral cartilages and nasal bones and cause external deviation of the nose. However, detection of high septal deformities causing deviated noses is very difficult if a detailed intranasal examination is not performed. As well, the high septal border is a difficult area to approach via the endonasal rhinoplasty and is the weakest portion in the septum resulting in much difficulty in correcting deformities and in frequent later recurrence of deviation secondary to the healing process. In order to solve the above problems in 33 cases of deviated nose associated with high septal deformities, the authors evaluated deformities in the high septal border after separation of the septum from upper lateral cartilages and nasal bones. The high septal border is centralized by scoring after resection of the mid or lower-septal portion. And spreader grafts were applied to the convex sides of deviated septal borders to stabilize the high septal border and to prevent long-term recurrence of deviation. Also, to balance the traction force of side walls, the length of both upper lateral cartilages and nasal bones were equalized by resection in the longer side and grafting in the shorter side. Clinical follow-up ranged from 3 to 31 months. There was no surgical or septal complication. Also, there was no incomplete correction, recurrence of deviation, or compromized nasal support. All patients except 2 were satisfied with the aesthetic and functional results. We found that separation of septum from side walls allows detection and correction of higher septal deformities and that spreader graft allows long-term support and prevents later recurrence of deviation.
Cartilage ; Congenital Abnormalities* ; Follow-Up Studies ; Humans ; Nasal Bone ; Nose* ; Recurrence ; Rhinoplasty ; Traction ; Transplants*

Acute generalized exanthematous pustulosis(AGEP) is a disease entity caused mostly by drugs or viral infections. Clinically it manifests as generalized erythema, erythema multiforme and amicrobial pustules with fever. Histologically, AGEP is composed of neutrophilic subcorneal and spongiform pustules. A 70-year-old female, with no personal or family history of psoriasis, was given medication including diltiazem for hypertension. Fourteen days after taking the medications, pustular eruptions appeared on the face and rapidly spread to the trunk and limbs. A Laboratory examination revealed neutrophilic leukocytosis and an elevated erythrocyte sedimentation rate. The skin biopsy showed subcorneal and spongiform pustules. We report here a case of AGEP probably due to diltiazem.
Acute Generalized Exanthematous Pustulosis* ; Aged ; Biopsy ; Blood Sedimentation ; Diltiazem ; Erythema ; Erythema Multiforme ; Extremities ; Female ; Fever ; Humans ; Hypertension ; Leukocytosis ; Neutrophils ; Psoriasis ; Skin

The human trachea is normally lined by a pseudostratified ciliated columnar epithelium where ciliated, goblet, intermediate and basal cells are mainly represented. However the fetal tracheal epithelium was found to be composed of ciliated, non-ciliated and basal cells. The present study was designed to characterize the development of ciliated cells in the fetal trachea at mid (19 weeks) and last (32 weeks) trimester of gestation. At 19 weeks of gestation, the tracheal epithelium, 35 µm in height, was composed of surface, intermediate and basal layers. The surface cells were subdivided into ciliated, immature ciliated, non-ciliated, granule containing and goblet cells. The ciliated cells covered approximately half of the luminal surface area. The immature ciliated cells contained basal bodies, but the apical membrane was not invested with cilia. The granule containing cells contained numerous dense granules, 0.3-0.7 µm in diameter, in the apical cytoplasm. The goblet cells contained less electron dense granules, 1-2 µm in diameter, in the apical cytoplasm. The cells in intermediate layer were relatively undifferentiated and contained poorly developed organelles. Submucosal gland were well differentiated and were composed of the mucous and serous cells. At 32 weeks of gestation, the tracheal epithelium, 50µm in height, was also composed of surface, intermediate and basal layer. The surface cells were composed of ciliated, non-ciliated and goblet cells. The ciliated cells, dominant type of surface cells, were subdivided into mitochondria-rich cells (type I) and smooth endoplasmic reticulum-rich cells (type II). The non-ciliated cell were of three subtypes : mitochondria-rich cells (type A), glycogen and microfilament-containing cells (type B) and cells with bulging apical surface into the lumen (type C). Small granule containing cell appeared in the basal layer. These cells contained clear vesicles, 50 ㎚m in diameter, and dense granules, 100-300 ㎚m in diameter. Submucosal gland were well developed and consisting of mucous, serous and myoepithelial cells. These results indicate that the cell populations of the tracheal epithelium at late stage of pregnancy have essential features similar to those of adult. and show that the different steps of ciliogenesis could be identified.
Adult ; Basal Bodies ; Cilia ; Cytoplasm ; Epithelium* ; Fetus* ; Glycogen ; Goblet Cells ; Humans* ; Membranes ; Organelles ; Phenobarbital ; Pregnancy ; Trachea

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.
Aneurysm* ; Arteriovenous Fistula* ; Hypertension, Renovascular* ; Renal Artery*

No abstract available.
Abscess* ; Magnetic Resonance Imaging*