No abstract available.
Humans ; Mothers*

No abstract available.
Animals ; Hepatocytes* ; Organelles* ; Rats*

No abstract available.
Geriatrics* ; Primary Health Care*

No Abstract available.
Diagnosis* ; Sleep Apnea, Obstructive*

PURPOSE: This study was conducted to assess the effects of x-irradiation on the expression of the novel glutathione S-transferase K1 gene. MATERIALS AND METHODS: Human glutathione S-transferase K1 (hGSTK1) DNA was purified and ligated to a pcDNA3.1/Myc-His(+) vector for the overexpression of hGSTK1 gene. MCF-7 cells were transfected with or without the recombinant hGSTK1 gene, and irradiated with 6 MV x-ray. After incubation of 14 days, cell survival was measured and compared. The expression of hGSTK1 and the effect of x- irradiation on hGSTK1 expression were also estimated in MCF-7 cells transfected with or without the hGSTK1 gene by RT-PCR. RESULTS: Following 2 to 12 Gy of x-irradiation, the cell survivals were higher in the MCF-7 cells transfected with the hGSTK1 gene than in those without transfection. Despite the higher cell survival in the hGSTK1-transfected cells, RT-PCR for hGSTK1 mRNA revealed no significant differences according to radiation dose, fractionation, and time after irradiation. CONCLUSION: The MCF-7 cells transfected with the hGSTK1 gene showed higher cell survival than those without transfection of the gene. The hGSTK1 gene might be associated with the radiosensitivity of MCF-7 cell line and further analysis should be needed.
Cell Survival ; DNA ; Glutathione Transferase* ; Glutathione* ; Humans ; MCF-7 Cells* ; Radiation Tolerance ; RNA, Messenger ; Transfection

Contact Dermatitis due to cosmetics is also common in Korea. as in other developed countries. However. detection of the causative antigens is in a difficult situation due to many reasons. We have routinely patch tested with Japanese cosmetic series patch test allergens, Types 17 and 18 in addition to Hollister standard battery and patients own cosmetics to 4Q cases of suspected cosmetic contact dermatitis who have visited our Environmental and Occupational Clinic during the past one year. The study result was as follows. Total 55% ositive reaction related to cosmetics was observed in 4p patch tested patients. 2 The most frequently observed antigens were hydroxycitronellal, benzyl saliylate and cinnamic alcohol.
Allergens ; Asian Continental Ancestry Group ; Dermatitis, Contact* ; Developed Countries ; Humans ; Korea ; Patch Tests*

The ability of nicotinic acid and its substitutes to increase cutaneous blood flow has been measured by laser Doppler flowmeter in 30 healthy human volunteers. We applied nicotinarnide, nicotinic acid ethyl ester, nicotinic acid methyl ester, hexyl nicozinate each in an acqeous solution at a concentration of 10 mM/liter for 10 minutes occlusion on the forearm. The change of blood flow was serially checked at 5 to 10 minutes intervals for one hour. The study results were as follows : l. The relative maximum cutaneous blood flow response was in following order nicotinic acid methyl ester(100%), nicotinic acid ethyl ester(98%), hexyl nicotinate (84%) and nicotinic acid(63%). However, there was no statistically significant difference(p>0.05) between each drug. There was statististically significant difference between nicotinamide and all other nicotinic acid substitutes(p<0.05). 2. The time required to reach maximum blood flow response was 6.7 minutes for hexyl nicotinste, 10 minutes for nicotinic acid ethyl ester, 12.5 minutes for nicotinic acid methyl ester and 20 minutes for nicotinic acid. However, there was statistically significant difference between hexyl nicotinate and nicotinic acid only(p<0.05). 3. Significant decrease of cutaneous blood flow was observed one hour after the removal of the patches in all drugs.
Flowmeters ; Forearm ; Healthy Volunteers ; Niacin* ; Niacinamide

No abstract available.
Risk Factors*

OBJECTIVE: Many cases of fertilization failure after ICSI is attributed to decondensation defect of sperm head, therefore, selection of sperm with well-condensed, fully-matured nucleus is critical for successful fertilization. During mammalian spermiogenesis, replacement of the somatic histones by protamines allows normal sperm nuclear condensation. The degree of condensation can be shown with the aid of acidic aniline blue staining, which is able to discriminate between lysine-rich histones and arginine- or cysteine-rich protamines. The objective of this study was to investigate the possible relation between nuclear maturity of human sperm and hypo-osmotic swelling patterns. Hypo-osmotic swelling test is very simple and convenient test to measure functional integrity of human sperm membrane, and each already tested sperms can be used for fertilization. METHODS: For assessment of sperm nuclear maturity, aniline blue staining was performed on the slides, already undergone hypo-osmotic swelling test in 5 subfertile patients with abnormal semen parameters and 8 fertile donors. After 3 hours swim-up, these procedures were repeated in each cases. RESULTS: Sperms with negative aniline blue were significantly increased after swim-up in each group. There was a significant increase in the proportion of negative aniline blue in sperms with swelling patterns(e+f+g) compared to sperms with non-swelling patterns(a), except swim-up group in subfertile patients. CONCLUSION: Choosing the swelling patterns, rather than non-swelling sperms after hypo-osmotic test may be beneficial for the selection of sperms with well-condensed, mature nucleus and intact membrane.
Fertilization ; Histones ; Humans ; Membranes ; Protamines ; Semen ; Sperm Head ; Sperm Injections, Intracytoplasmic ; Spermatogenesis ; Spermatozoa* ; Tissue Donors

Although the penicillin is still the first choice of drug in the treatment of gonorrhea in most areas of the world, Neisseria gonorrhoea has become increasingly less sensitive to penicillin preparations. The proportion of such strains also varies from region to region. Sodium penicillin G. is a short acting preparation which enables to attain quick high blood level. The reason for combining the quick acting sodium penicillin G. with probenecid is that latter inhibits renal excretion of penicillin and maintains effective serum penicillin levela long enough to extinguish gonococcal infections. The subjects were 265 male patients with uncomplicated gonococcal urethritis at the VD clinic of Cboong Ku Public Health Center in Seoul during 5 months period from September 1980 to January 1981. The following criteria is used to identify gonococcal infection Gram negative intracellular diplococci in urethral smear and/or oxidase positive typical colony formation on Thayer-Martin media composed of Gram negative diplococci. The 265 patients were divided in two groups(A and B group). They were administered an oral dose of 1.0 gm. probenecid and, 15 to 30 min. later, 4.0 m.u. of sodium penicillin G. i.m. in A-group(152) and 4.8 m.u. procaine penicillin G. i.m. in B-group(113). Only those who were able to be followed up 3 to 7 days after treatment were contained for final analysis(A-group:108, B-group:88), A-group showed 22 failures(20.4%), and B-group 9 failures(10.2%). A significant difference is found between the two groups(P<0.05). Incidence of postgonococcal urethritis was 6(7.0%) in A-group and 5(6.3%) in B-group(P>0.05). We suggest a repeated injection 3 to 4 hours later or increased amonuts of sodium penicillin G. might give better result in the treatment of uncomplicated gonorrhea.
Gonorrhea* ; Humans ; Incidence ; Male* ; Neisseria ; Oxidoreductases ; Penicillin G Procaine ; Penicillin G* ; Penicillins ; Probenecid ; Public Health ; Seoul ; Sodium* ; Urethritis