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Biomedical subjects

D H Shin

Publications and source records attributed to D H Shin.

At least 307 records · Page 17Linked to original sources
PubMed1977

Topical corticosteroid response and retinopathy in juvenile-onset diabetes mellitus.

In a prospective study, 64 patients with insulin-dependent juvenile-onset diabetes mellitus were followed for eight to 12 years to determine if those with higher spontaneous intraocular pressures (IOPs) would be protected from the development of retinopathy. The patients were also classified initially as high (GG), intermediate (NG), or low (NN), responders on the basis of their IOP response to corticosteroid eyedrops. High responders were found to be considerably in excess (25 per cent) of the proportion found in the general population (6 per cent). Retinopathy developed significantly less often and was less severe in the high (GG) corticosteroid responders. Although the GG diabetics had significantly higher mean baseline IOPs than the less responsive NN and NG groups in each corticosteroid response category, the mean IOP of the group with retinopathy was not significantly different from that without retinopathy. This suggested that factors associated with the GG response other than increased IOP might be important in the relative resistance to diabetic retinopathy.

Administration, Topical↗
PubMed1977

Glucocorticoid responsiveness associated with HLA-B12.

Primary open-angle galucoma (POAG) patients are more responsive to glucocorticoids, and have increased prevalences of the histocompatibility antigens HLA-B7 and HLA-B12. We report herein a comparison of in vitro cellular responsiveness to glucocorticoids and HLA classification for 25 POAG patients, and 25 individuals who respond to topical dexamethasone with intraocular pressure is greater than 31 mm. HG. (GG responders). Within both the POAG and GG groups, significantly greater responsiveness to prednisolone occurs in patients with HLA-B12 antigen. No such association occurs for patients with HLA-B7.

Aged↗
PubMed1977

HLA antigens and primary open-angle glaucoma in black Americans.

Black patients with primary open-angle glaucoma, when compared to nonglaucomatous individuals, demonstrate significantly increased prevalences of the HLA antigens B7 and B12 and significantly decreased frequencies of A1 and A11. White patients with primary open-angle glaucoma have in common with blacks the increases in B7 and B12 and the decrease in A11, but present no deficit of A1. In addition, white patients with primary open-angle glaucoma demonstrate a significant increase of A3 and a decrease of Bw35, both of which are not found in blacks.

Black People↗
PubMed1977

The ocular hypotensive effect of epinephrine in high and low corticosteroid responders.

Nonglaucomatous individuals were classified by their intraocular pressure response to 6 weeks of topical dexamethasone, 0.1%, four times daily. Twenty GG responders (over 31 mm. Hg after dexamethasone) and 20 NN responders (below 20 mm. Hg after dexamethasone) of similar age, sex, race, initial intraocular pressure, and facility of outflow were selected. After 24 hr. of treatment (two doses) with 1% epinephrine HCl, the GG subjects demonstrated a mean (+/-sigma) corrected decrease in intraocular pressure of 4.2 mm. Hg (+/- 2.5) as opposed to 1.8 mm. Hg (+/- 2.1) in the NN subjects (p less than 0.005). The relationship between increased responsiveness to corticosteroids, to epinephrine, and to theophylline suggested cyclic nucleotides as a possible common pathway.

Administration, Topical↗
PubMed1976

HLA antigens and corticosteroid response.

Compared with normal individuals, patients with primary open-angle glaucoma have increased prevalences of HLA-B12 and B7 antigens and are more responsive to glucocorticoids. Lymphocytes from both ocular normotensive and glaucomatous individuals with the HLA-B12 antigen require significantly (P less than .02) lower concentrations of prednisolone to inhibit phytohemagglutinin-induced transformation.

Glaucoma↗
PubMed1976

Response to topical epinephrine. A practical prognostic test in patients with ocular hypertension.

Eighty patients with ocular hypertension (intraocular pressure greater than 20 mm Hg) and GG-response to topical corticosteroids (over 31 mm Hg after six weeks of topical dexamethasome 0.1% four times a day) were tested for ocular hypotensive response to topical epinephrine. Of 80 patients observed for five to ten years, 20 (25%) developed gluacomatous visual field defects, and 34 (43%) were "responders" to topical epinephrine (IOP reduction of greater than 5 mm Hg). Of 20 patients who developed glaucomatous visual field defects, 17 (85%) had responded to topical epinephrine, but only 28% of those who did not have visual field defects showed this type of epinephrine response. Of 34 epinephrine responders, 17 (50%) developed glaucomatous visual field defects as compared to three of 46 (6.5%) nonresponders. The initial applanation IOP level proved less valuable as a prognostic indicator.

Administration, Topical↗
PubMed1976

Long-term epinephrine therapy of ocular hypertension.

Nineteen patients with symmetrical ocular hypertension and symmetrical cupping of the optic nerves were made asymmetric with respect to intraocular pressure for one to five years by unilateral topical treatment with epinephrine hydrochloride. Development of glaucomatous visual field defects was observed in 32% of the untreated eyes and in none of the treated eyes (P less than .05). Progressive cupping of the optic nerve was noted in 53% of the untreated eyes and in 11% of the treated eyes (P less than .025). Evidence of glaucomatous damage was observed more frequently in subjects maintained on this regimen for longer periods and in subjects with initial horizontal cup/disc ratios greater than 0.4 (P less than .05). None of the eyes, either treated or untreated, with mean intraocular pressures less than 24 mm Hg developed glaucomatous damage during the period of this study.

Administration, Topical↗
PubMed1976

The prognostic value of HLA-B12 and HLA-B7 antigens in patients with increased intraocular pressure.

The presence of the histocompatibility antigens HLA-B12 or HLA-B7 in 76 patients with increased intraocular pressure and a GG response to topical corticosteroids (intraocular pressure over 31 mm Hg after six weeks of topical 0.1% dexamethasone eyedrops, four times daily) correlated with the development of glaucomatous visual field loss. In close agreement with prevalences in patients with primary open-angle glaucoma, 14 (88%) of the 16 patients with increased intraocular pressure and a GG response who developed glaucomatous visual field loss had either HLA-B12 or B7 antigens. Fourteen (41%) of 34 patients with increased intraocular pressure and a GG response who had B12 or B7 antigens developed glaucomatous visual field loss but only two (5%) of 42 similar patients without either antigen had visual field loss. Other factors such as the initial intraocular pressure, the horizontal cup/disk ratio, and family history of glaucoma proved less valuable as prognostic indicators in this series.

Adrenal Cortex Hormones↗
PubMed1976

Positive FTA-ABS tests in subjects with corticosteroid-induced uveitis.

Of 17 subjects who developed severe anterior nongranulomatous uveitis during or immediatelyy after testing with topical corticosteroid preparations, 14 (82%) had a positive fluorescent-treponemal-antibody absorption (FTA-ABS) test. No association was found between corticosteroid-induced uveitis and any specific HL-A locus.

Adrenal Cortex Hormones↗
PubMed1976

Pseudomembranous colitis associated with antibiotics.

Colitis associated with antibiotics, particularly with lincomycin and clindamycin, is a well established entity. The colitis may be clinically and radiologically very difficult to distinguish from inflammatory bowel disease, including Crohn's disease and ulcerative colitis. A wide spectrum of pathological features is described with various antibiotics. However, the pathological picture in the pseudomembranous form is quite distinctive. The most important histological findings include a "mushroom-like" or "explosive" appearance of the pseudomembrane with a sudden transition to normal mucosa adjacent to the lesion. Rectal biopsy is both an accurate and a rapid method of establishing the diagnosis.

Adult↗
PubMed1976

Pilocarpine ocular inserts.

Pilocarpine was administered to a selected group of ocular hypertensive subjects in the form of a synthetic biosoluble matrix inserted into the conjunctival cul-de-sac. Satisfactory lowering of the intraocular pressure resulted, with a minimum of subject intolerance. The decreased pressure response was significant in some cases for greater than 24 hours. Drug delivery by soluble inserts offers promise as a convenient and effective mode of therapy.

Administration, Topical↗