4.THE EFFECTS OF VASCULAR FREEZING TIME ON ARTERIAL VASOSPASM IN RATS.
Journal of the Korean Association of Oral and Maxillofacial Surgeons 1998;24(3):290-296
The outcomes of microvascular surgery may be jeopardized by factors that reduce the blood flow across the freshly the performed anastomosis Arterial vasospasm is one of such factors causing the failure of an anastomosis. Vascular spasm has treated by systemic or topical administration of pharmacologic agents. However, despite the works done to prevent and elucidate the cause of vasospasm, a apasmolytic agent Capable of consistently protecting against it or reversing it has not been found. Vascular freezing as an powerful spasmolytic maneuver has recently been reported. The purpose of the present study was to determine optimal vascular freezing time. The effect of vascular freezing time was examined on the relief of arterial vasospasm. The vascular was freezing was performed on the artery of rats whit hand-held liquid nitrogen oxide spray. the artery was frozen for 5, 15,or 30 seconds. Vascular spasm and patency were evaluated immediately after and 1, 3, 7, 14, and 56 days after the freezing. Femaral arteries were havested at 1, 3, 7, 14, and 56 days after freezing for histologc examination The results obtained were as follows : 1. immediately after the freezing-thawing, the vasospasm was relieved and not induced by spasmogenic induction manipulation in all groups. 2. Immediately after the freezing-thawing, the artery become dialated, the diameter of which was slightly more than the intial, ranging between 0-17% and the diameter of 5-second group was smaller than those of 15-and 30-second group(P<0.05). 3. One to 56 days after freezing, arteral diameter was still 1-22% larger than the initial and there was no significant difference among groups. 4. One to 56 days after the freezing, vasospasm was not induced by spasmogenic induction manipulation in all groups. 5. One day after the freezing, almost all the vessel wall died and the normal architeture of the layer was deranged in all group. The shorter was the duration of freezing, the more early was the healing of artery occurred, 6. Fifty-six days after the freezing, cellularity was increased and the architecture was regenerated, There was no significant differance among groups. It was suggested that vascular freezing for 5 seconds is useful to relieve the vasospasm and to lessen the injury of artery.
Administration, Topical
;
Animals
;
Arteries
;
Freezing*
;
Nitrogen
;
Rats*
;
Spasm
5.Effects of Non-steroidal Anti-inflammatory Drug on Anterior Uveitis.
Journal of the Korean Ophthalmological Society 1995;36(8):1287-1294
To evaluate effects of the topical administration of non-steroidal antiinflammatory drug on anterior uveitis, suprofen eye drop was instilled into the left eye of 10 pigmented rabbits and then experimental anterior uveitis was induced by injecting 750 mocro gram/kg endotoxin of Shigella flexneri serotype 1A into their peritoneal cavities. The pupillary diameters were measured, and cell and flare gradings were recorded in 20 eyes of 10 rabbits for one week at an interval of 12 hours for the first day and then daily. Differences between the treatment and control groups were investigated. All the above parameters showed greatest changes at 12 or 24 hours after the injection of endotoxin and became normal by one week. The treatment and the control groups demonstrated statistically significant difference at 12 hours, day 1, and day 2 as for pupillary diameter and at day 1 and day 2 as for cell and at 12 hours and day 1 as for flare. Thus, it is concluded that prostaglandin plays a role in miosis and the appearance of inflammatory cells and flare in anterior uveitis and the topical administration of non-steroidal anti-inflammatory drug can alleviate signs of anterior uveitis. The specific relationship between leucotriene B4 and polymorphonuclear leucocytes influx was not demonstrated.
Administration, Topical
;
Miosis
;
Rabbits
;
Shigella flexneri
;
Suprofen
;
Uveitis, Anterior*
8.Iododerma Following Radioactive Iodine Ablation of the Thyroid for Thyroid Cancer.
Kee Suck SUH ; Jong Bin PARK ; Sang Hwa HAN ; Sang Tae KIM ; Min Soo JANG
Korean Journal of Dermatology 2013;51(1):53-56
Iododerma is a rare cutaneous eruption that occurs after oral, parenteral or topical administration of iodides. Acneiform papulopustular lesions are the most common skin reactions of iododerma and erythematous, vesiculobullous, vegetative, and pustular psoriasis-like lesions appear less commonly. A 40-year-old woman with post-thyroidectomy presented with pustular and crusted patches with erythematous and indurated bases on the face and well-defined purplish crusted desquamative plaques on the lower legs at 10 days after radioactive iodine-131 ablation. Based on clinicopathological findings and history, she was diagnosed with iododerma following radioactive iodine ablation. Hypersensitivity to iodine is more uncommon in iodine-131 therapy compared with other iodine-containing substances since the quantity of sodium iodide is infinitely small. As iododerma following radioactive iodine ablation is a rare entity, so clinicians need to know about the possibilities of developing the skin lesion along with other early side effects before administering iodine-131 therapy.
Administration, Topical
;
Female
;
Humans
;
Hypersensitivity
;
Iodides
;
Iodine
;
Leg
;
Skin
;
Sodium Iodide
;
Thyroid Gland
;
Thyroid Neoplasms
9.A novel pulmonary delivery system--dry powder inhalers.
Yue TANG ; Jia-Bi ZHU ; Xi-Jing CHEN
Acta Pharmaceutica Sinica 2009;44(6):571-574
Dry powder inhalers (DPIs) have received considerable attention because of their propellant-free composition and stability. DPIs include the DPI devices and inhalation powders. The purpose of this review is to address the development of the DPIs, including the mechanisms of absorption, the products, the devices, the preparation technology, and the characteristics.
Administration, Topical
;
Drug Delivery Systems
;
Dry Powder Inhalers
;
Lung
;
Technology, Pharmaceutical
;
methods
10.A Case of Steroid-induced Glaucoma.
Jou Weon YOUN ; Byoung Suck LEE ; Tae Soo LEE
Journal of the Korean Ophthalmological Society 1988;29(2):419-423
The prolonged use of steroids, especially the topical administration of ccrticosteroid, will causes an intraocular pressure(IOP) devation in some patients with clinical finding that typically resemble primary open-angle glaucoma. The authors experienced a case of steroid-induced glaucoma following systemic and topical use of dexamethasone for seborrheic dermatitis of both eyelids 3 years previously. During the past few months patient had noted complete lloss of vision in right eye and decrease of vision considerably, in left eye and a trabeculectomy was done on the left eye. We report a case of steroid-induced glaucoma and the literatures were reviewed briefly.
Administration, Topical
;
Dermatitis, Seborrheic
;
Dexamethasone
;
Eyelids
;
Glaucoma*
;
Glaucoma, Open-Angle
;
Humans
;
Steroids
;
Trabeculectomy