Pedunculated lipofibroma is a rare disorder characterized by ectopic deposits of mature adipose tissue in the dermis. It is a dorne shaped or sessile papule which occurs at any site and develops later in life. We, herein, report two cases of pedunculated lipofibroma which have developed on the chin of a 64-year-old man and the buttock of a 47-year-old woman.
Adipose Tissue ; Buttocks ; Chin ; Dermis ; Female ; Humans ; Middle Aged

No abstract available.

No abstract available.

This study was designed to investigate dental arch shapes buccally and lingually at Bracket Level of Koreans. This involved studying 63 inviduals (37 males, 26 females) with normal occlusion ranging in age from 17 to 24 years old. The landmarks were digitized and measurements and statistical analysis were performed by NEC 9801 V-M computer. The Results were as Follows: Bicanine width, Bipremolar width and Bimolar width were larger in males than in females. Buccal and lingual arch form and coordination form were obtained by NEC 9801 V-M computer. The parabolic equations which represents buccal and lingual arch form were obtained.
Dental Arch* ; Female ; Humans ; Male ; Young Adult

This study aimed to investigate the existence of GABA receptor and the mechanisms of action of GABA and diazepam of the trachealis muscle isolated from dog. Horizontal muscle strips of 2mm×15mm were prepared from canine trachea, and isometric myography in isolated muscle chamber bubbled with 95/5%-O₂/CO₂ at 36℃, at the pH of 7.4 was performed. Muscle strips contracted responding to the electrical field stimulation (ESP) by 2~20 Hz, 20 msec, monophasic square wave of 60 VDC. GABA and diazepam suppressed the EFS-induced contractions to the similar extent, significantly. (p<0.05). Bicuculline, a GABA(A) receptor antagonist blocked both GABA- and diazepam-inhibitions; but DAVA, a GABA(B) receptor antagoinst did not affect either of them. These results suggest than in the canine trachealis muscle, there may be only GABA(A) receptor, and GABA and diazepam inhibit the contractility via GABA(A) receptor.
Animals ; Bicuculline ; Diazepam ; Dogs ; gamma-Aminobutyric Acid* ; Hydrogen-Ion Concentration ; Myography ; Receptors, GABA ; Receptors, GABA-A ; Trachea

Several studies have indicated that retinal pigment epithelial(RPE) cells migrate from their normal location into the vitreous cavity where they then undergo proliferation and membrane formation in proliferative vitreoretinopathy(PVR). Little attention has been given to the role of vitreous on cellular proliferation. Our study is to determine the effect of vitreous on RPE cell proliferation and to examine the morphology of cultured RPE cells on vitreous explants. The vitreous from pigmented rabbit was extracted and added to the cultured media RPE cells proliferated rapidly along the margin of the vitreous as fibrocyte like cells and were less invasive into the virtrous gel. Liquified vitreous with media stimulated the proliferation of RPE cells, but vitreous alone showed the decrease of inoculated RPE cells.
Cell Proliferation ; Membranes ; Retinaldehyde* ; Vitreoretinopathy, Proliferative

No abstract available.
Erythrocytes*

Thoracic radiculopathy (TR) is one of various neurologic complications of diabetes mellitus (DM), which can cause pain and motor weakness of chest or abdomen. Electromyographic study is well known to be useful for accurate diagnosis of TR. This study is conducted in order to answer following questions: To what extent does paraspinal EMG study show denervation potentials in neurologically asymptomatic DM patients? ; Is there any correlation between EMG abnormality and severity of diabetes mellitus? We performed thorough neurologic examination and review of medical records in 74 DM patients who were referred for neurologic evaluation and rountine nerve conduction studies. Among those patients, 16 were selected for EMG on lower thoracic paraspinal muscles, who had no clinical symptoms of thoracic radiculopathy and no evidence of peripheral neuropathy on routine nerve conduction studies. The EMG findings were evaluated with relation to serum fructosamine level and duration of DM. On EMG examination, ten of sixteen patients exhibited positive sharp wave in lower thoracic paraspinal muscle. Nine of those ten patients with denervation potential in thoracic paraspinal muscle showed high fructosamine level and eight had been exposed to DM for more than 5 years. It is suggested that subclinical diabetic thoracic radiculopathy is more frequent than expected arid that there is positive correlation between abnormal paraspinal EMG findings and the level of fructosamine and duration of DM. And it is also suggested that there could be selective involvement of posterior primary ramus in diabetic patients, although it needs further studies to be confirmed.
Abdomen ; Denervation ; Diabetes Complications ; Diabetes Mellitus ; Diagnosis ; Electromyography ; Fructosamine ; Humans ; Medical Records ; Neural Conduction ; Neurologic Examination ; Paraspinal Muscles ; Peripheral Nervous System Diseases ; Radiculopathy* ; Thorax

The effects of intraocular hypothermia on experimental proliferative vitreoretinopathy in rabbits were studied. Vitrectomy was performed for 30 minutes with irrigating balanced salt solution in rabbit eyes, and the cultured retinal pigment epithelial cells were injected into the vitreous cavity. The irrigating balanced salt solution was used at room temperature in control eyes, and was cooled to 6 degrees C in experimental eyes. Experimental eyes showed less postoperative inflammation and demonstrated less occurrence of tractional retinal detachment compared with the control eyes. In vitro, the growth of cultured human retinal pigment epithelial ceDs was studied in the conditions of different temperatures. Significant suppression of cell growth was noted at 43 degrees C and also at 4 degrees C. The cooled irrigating solution may be used during vitrectomy procedure to decrease the occurrence of proliferative vitreoretinopathy.
Cell Proliferation* ; Epithelial Cells ; Humans ; Hypothermia* ; Inflammation ; Rabbits ; Retinal Detachment ; Retinaldehyde ; Traction ; Vitrectomy ; Vitreoretinopathy, Proliferative

The complications of peripheral or posterioruveitis, such as vitreous opacity, epiretinal membrance, and tractional retinal detachment may need vitreous surgery. This study was undertaken to evaluate the efficacy of transpars plana vitrectomy in the case of epiretinal membrance or tractional retinal detachment secondary to chronic uveitis.We included 23 eyes of 21 patients, and among them there was 16 eyes of epiretinal membrance and 7 eyes of tractional retinal detachment respectively. Improvement of vision, 2 lines or more in Anellen Chart, was noted in 10 eyes(63%) for epiretinal membrance and 2 eyes(29%) for tractional retinal detachment within post-operative 1 month. Final visual acuity decrease, compared with preoperative vision, was noted in 4 eyes(25%) for epiretinal membrance and 6 eyes(86%) for tractional retinal detachment with a mean follow-up of 34 months. The most common cause of visual acuity decrease was recurrent or persistent inflammation and resultant fibrous tissue proliferation, which became obvious within post-operative 3 months.Therefore, we`re able to conclude that the main cause of postoperative visual acuity decrease is persistent intraocular inflammation and fibrous change. So it is necessary to remove posterior hyaloid membrance actively and combine with medical treatment like corticosteroid therapy in order to control the inflammation even after vitreous surgery.
Follow-Up Studies ; Humans ; Inflammation ; Retinal Detachment ; Traction ; Uveitis* ; Visual Acuity ; Vitrectomy*