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인천항 선거내의 (船渠內) 물리 화학적 환경요인의 연변동
이인규,이진환,유순애 ( In Kyu Lee,Jin Hwan Lee,Soon Ae Yoo ) 한국환경생물학회 1991 환경생물 : 환경생물학회지 Vol.9 No.2
A three-year study programme has been launched in December 1989 in order to investigate an ecological studies on the biotic communities and the energy flow in the Inchon Dock ecosystem. The purpose of this study is to clarify the water quality and to provide the basic Physicochemical data for the goal mentioned above. The investigation has been carried out monthly during December 1989 to December 1990 in both surface and bottom waters at four stations in this artificial dock. Water temperature ranged from 3.6℃ to 27.7℃, and was entirely under the influence of air temperature. Salinity varied between 20.0-32.8‰, so that the dock water may be influenced by freshwater discharges from Inchon city. Concentration of dissolved oxygen showed 0-9.4㎎/ℓ and biological oxygen demand were 0-8.9㎎O_2/ℓ. The anoxic condition was by a result of red tide caused by phytoplankton community. Nutrients(nitrite, nitrate, ammonia, phosphate and silicate) have increased throughout the year investigated, so that excessing eutrophication induced summer blooming during the study period.
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이진환,이은호,이인규 ( Jin Hwan Lee,Eun Ho Lee,Eva Acs,In Kyu Lee ) 한국하천호수학회 1997 생태와 환경 Vol.30 No.4
In order to reveal the distribution on freshwater phytoplankton of North Korea, the present study was carried out at 8 sites of inland and lake waters from 16 May to 31 May 1991. A total of 162 taxa of phytoplankton communities, representing 11 taxa 6 genera of cyanophytes, 2 taxa 2 genera of dinoflagellates, 4 taxa 3 genera of euglenoids, 1 species 1 genera of xanthophyte, 30 taxa 19 genera of chlorophytes, and 114 taxa 37 genera of diatoms, were identified. Chlorophytes were predominant in the rice field of Pyungyang, Chungchon River and Sanju Fall, cyanophytes and brackish diatoms were dominated in salt pan pool of Nampo. Sodongjung and Samil Lake were poor in phytoplankton flora but maintained a good water quality, while Mureung Fall of Mt. Myohyang was rich in biota, and suggested a poor water quality based on an ecological habit in species occurrence. Sijung Lake was abundant in brackish phytoplankton species and was thought to be exchanged by seawater. Because of disconnection of information between North and South Korea, no information on freshwater algal flora of North Korea was available for 50 years. We expect that this investigation wlll help us contribute to the understanding of a phytoplankton distribution and ecology of North Korea in part.
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아급성 갑상선염 환자에서 Prednisolone 투여 후 혈청 Interleukin-6치의 변화에 관한 연구
박근용,이인규,조광범,김경환,박진용,이동욱,김인환,임태형,한승엽 啓明大學校 醫科大學 1996 계명의대학술지 Vol.15 No.3
Recent studies have shown that increased serum IL-6 concentrations in patients with thyroid cell damage induced by inflammatory and noninflammatory processes are associated with leakage of IL-6 from thyrocytes. To investigate the changes in serum IL-6 concentrations, we evaluated serum levels of T4, thyroglobulin and ESR in subacute thyroiditis during treatment with corticosteroid. Six female patients were evaluated within 10days after the onset of fever, palpitation and pain in the thyroid. Serum samples were obtained to measure serum T4, TSH, Tg, TSH-receptor antibody(TRAb), IL-6 by RIA and ESR. These parameters except for TRAb were measured before predinisolone treatment, 7 days, 14 days, 42 days after prednisolone treatment. The dose of prediniolone administerd was started at 30mg/day, and tapered greadullay at intervals of 7days. 1) The serum T4 concentration was increased above normal in the untreated condition (13.63±1.38ug/dl) and decreased progressively with time after prenisolone(PDN) treatment (12.68±1.07g/dl, 11.04±0.90ug(P<0.05), 9.87±1.17ug/dl(P<0.05). 2) The serum thyroglobulin(Tg) concentration was increased above normal in the untreated condition (170.67±107.99ng/dl) and decreased progressively with time after PDN treatment (86.83±23.19ng/ml(P<0.05), 55.48±21.08ng/ml(P<0.05), 11.79±7.83ng/ml(P<0.05)). 3) Levels of ESR was increased above normal in the untreated condition(41.83±7.31mm/hr) and decreased rapidly after PDN treatment (12.00±6.07mm/hr(P<0.05), 17.00±4.90mm/hr (P<0.05), 16.50±12.24mm/hr(P<o..05)). No rebound elevation of serum T4, Tg or ESR levels was found during PDN treatment. 4) The serum IL-6 concentration was increased in all six patients in the untreated on the seventh day after PDN treatment (161.93±49.53fmol/ml). However, the serum IL-6 concentration was not changed on the 14th and 42th day after PDN treatment (80.38±15.31fmol/ml(P<0.05), 34.30±10.78fmol/ml(P<0.05). The different changes between serum IL-6 concentration and levels of T4, Tg and ESR on the 7th day after PDN treatment could only reflect the persistent release of IL-6 from thyroid cells disrupted by viral aggression. Therefore, the serum IL-6 concentration dose not seem to be a good index for response of early PDN treatment in the subacute thyroiditis, although the serum IL-6 concentration is a good index for the thyroid destruction.
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