• 대한본초학회지
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• 제25권4호
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• pp.113-120
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• 2010

Objectives : This study was conducted to compare Chaenomelis Sinensis Fructus with Chaenomelis Lagenariae Fructus, and to examine Fructus chaenomelis having an influence on Intestinal Motility. Methods : We compared Chaenomelis Sinensis Fructus with Chaenomelis Lagenariae Fructus, by observing their effects on Intestinal Motility. Oral administration of water extracts of Chaenomelis Sinensis Fructus and Chaenomelis Lagenariae Fructus into albino rats was followed by dealing with carbachol or loperamide, injecting charcoal meal and measuring the moving length in the intestine. Results : By Chaenomelis Sinensis Fructus and Chaenomelis Lagenariae Fructus, the Intestinal Motility of normal albino rats did not change significantly. Chaenomelis Sinensis Fructus and Chaenomelis Lagenariae Fructus controled the accelerated Intestinal Motility of albino rats. Chaenomelis Sinensis Fructus was not different from the extracting method, Chaenomelis Lagenariae Fructus had effects of control on extracting by methanol significantly. When Chaenomelis Sinensis Fructus was compared with Chaenomelis Lagenariae Fructus, the former was proved to have control effects on Intestinal Motility in decoction extracts and extracts by ethyl ether higher than the latter. By both Chaenomelis Sinensis Fructus and Chaenomelis Lagenariae Fructus, the declined Intestinal Motility was not changed significantly. Conclusion : Chaenomelis Fructus suppressed the exasperated Intestinal Motility by carbachol, but did not influence the dropped Intestinal Motility by loperamide. In addition, Chaenomelis Sinensis Fructus was more excellent than Chaenomelis Lagenariae Fructus in its control effects of Intestinal Motility. inhibitory effects by DKT represent a potential therapeutic approach to the treatment of inflammatory diseases.

• 아시안잔디학회지
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• 제9권4호
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• pp.285-292
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• 1995

To elucidate the mineral cycles of potassium in a dynamic grassland ecosystem in a steady state condition, this investigation was cunducted along the northwest side on Mt. Kwanak. The exper-imental results may he summarized on communities of Z. japonica and M. sinensis as follows. As compared with some pronerties of the surface soils among two semi-natural grasslands, the levels of exchangeahle potassium were high in M. sinensis and low in Z. japonica. Contents of potassium for the litters of Z. japonica and M. sinensis were 1.69% and 2.51%, re-spectively. The annual production of potassium was 1.32 g /m$m^2$ in the Z. japonica grassland and 3. 08 g /m$m^2$in the M. sinensis grassland. For a case of steady production and release, the ratio of annual min- eral production to the amount accumulated on top of the mineral soil in a steady state provides estimates of the release constant k. The models of the release, accumulation and annual cycle of potassium in a grassland ecosystem are determined by the equation (1) to (3), respectively (Table 3). Since it requires a period of about each 0.693 /r, 3 /r and 5 /r years for the release and accumu-lation of 50, 95 and 99% of its steady-state level, the estimates for potassium in a dynamic grass-land ecosystem of Mt. Kwanak were 1.5, 6.6 and 11.0 years in the Z. japonica grassland, and were 2.7, 11.9 and 19.8 years in the M. sinensis grassland. The amounts of annual cycles for potassium in a grassland ecosystem under the steady-state conditions were 1.32 g /m$^2$ in the Z. japonica grassland and 3.08 g /$m^2$ in the M. sinensis grassland. Key words : ZQvsia japonica Ahscanthus sinensis, Mt. Kwanak, Potassium cycles.

• 지역사회간호학회지
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• 제21권2호
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• pp.242-251
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• 2010

Purpose: This study investigated the factors of C. sinensis infection among the residents in vicinity of the Nakdong River and the infection status of fishes in the stream with C. sinensis maetacercaria. Methods: Selected five regions of the Nakdong River and collected freshwater fishes from the stream to examine their metacercarial infections; and studied the status and causes of C. sinensis infection in 552 residents living within 5 kilometers from the river. Results: Among the 552 residents studied, 13.8% were infected with C. sinensis, and among 379 freshwater fishes of 20 species collected from the five regions, 41 fishes of 8 species were infected with C. sinensis metacercaria. Conclusion: In order to prevent human C. sinensis infection and transition to chronic liver ions, we need to develop and apply good programs such as continuous health education, personal hygiene improvement, active medical treatment for those infected with C. sinensis, and residents’ voluntarily stop of eating freshwater fishes in the raw state.

• 한국어류학회지
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• 제9권1호
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• pp.121-129
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• 1997

기름종개속 Cobitis 어류 5종의 부착막의 미세구조(adhesive membrane)를 조사하기 위하여 전자현미경으로 성숙란을 조사한 결과, 난황형성시기인 난황구 후기의 zona radiata에는 다음과 같은 2가지 형태의 부착막 구조가 존재하였다. Cobitis lutheri, C. striata, C. sinensis 그리고 C. sinensis-longicorpus는 과립형(granular form)을 보였으며 C. melanoleuca는 융모형(villous form)을 보였다. 그러나 C. lutheri와 C. striata 그리고 C. sinensis, C. sinensis-longicorpus는 같은 과립형의 부착막구조를 가지고 있으나 이들 과립의 크기와 분포 수 그리고 난막의 미세구조에서 종간에 뚜렷한 차이를 보여주었다. 이러한 기름종개속 어류의 난막과 부착막 구조는 그들의 서식처와 산란습성에 관련된 종의 특이성을 보여 주고 있어서 분류학적으로 주목되었다.

• Animal cells and systems
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• 제5권2호
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• pp.127-132
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• 2001

The object of this study is to differentiate the reproductive behaviors of Pungitius sinensis and P. kaibarae inhabiting the southern part of the Korean Peninsula. We collected P. sinensis from Jusu stream, Okkyemyeon and P. kaibarae from Sacheon stream, Sacheon-myeon both in Gangwon province and subsequently raised and observed them in an aquarium. At the beginning of the reproductive season, male P. sinensis got tinged with dark green, made a territory, and built nests on the bottom. On the other hand, male P. kaibarae became black all over, its white ventral spines became conspicuous and built nests on the stems of waterweed off the bottom. In the courtship dance, male P. sinensis made frequent attempts to entice females into their nests after many bitings, while male P. kaibarae mostly did this with conspicuous jumpings. In courtship behaviors, the body's angle of male P. kaibarae with his head down was larger than that of male P. sinensis by 50-60 degrees. During courtship, the biting frequency as an index of aggressive behavior was greater in P. sinensis and the jumping frequency as an index of sexual behavior was greater in P. kaibarae. During the courtship dance, bitings tended to suppress jumpings, for P. sinensis, but not for P. kaibarae.

• Parasites, Hosts and Diseases
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• 제30권4호
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• pp.329-340
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• 1992

경북지역에 있어서 삼일열 말라리아 매개모기인 중국얼룩날개모기 (Anopheles sinensis)의 계절적 출현소장과 군집변동을 규명하기 위해 1987연부터 5연간 경출군 1개소에 유준등으로 1주일에 한떤씩 성충을, 1989년부터 3 년간 경북 농촌 진흥 원부속농장에서 모기유충을 채집조사하였다. 1987년부터 1991년까지 유창등에 처음으로 중 국얼룩날개모기가 채집되는 날짜는 연도별로 큰 차리를 나타내었으며, 3월 중순에서 4월 중순사이에 채집되었고 가장 높은 군집밀도를 보인 것은 7월 초순에서 중순이었으며, 그 후 점점 감소하여 lli3 초순과 중순부터는 전혀 채집되지 않았다. 채집된 모기 중 흡혈한 개체률은 채집장소별로 차리가 있었으며 그 율은 0.5∼67.9%이었다. 중국얼룩날개모기의 채집되는 수는 1987년 이후 증가하여 1989년 가장 많은 수가 채집되었으며, 그 후 급격히 감소하여 1991연에는 가장 적은 수가 채집되었다. 액간활동성은 22시에서 23시사이에 가장 왕성하였으며, 그 후 점차 감소하다가 새벽 4∼5시에 다시 약간 증가하였다. 중국얼룩날개모기 유충은 6월 중순에 논에서 처음 발견 되었고 그 밀도는 7월 초순 및 중순에 가장 높았으며, 9월 중구 이후부터는 그 밀도가 현저히 감소하였다. 중국얼룩날개모기 유충은 각감의 유기린제에 대하여 높은 저항성을 나타내었다. 이상의 성적으로 미루어보아 경북 지역에서 중국얼룩날개모기는 매년 감소되고 있다고 판단된다.

• 환경생물
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• 제22권3호
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• pp.369-375
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• 2004

참게(E. sinensis)의 유생 생장에 미치는 기초적인 환경 및 생물학적 정보를 얻기 위해 본 실험을 실시하였다. 참게 유생을 카드뮴과 수은의 0.1, 0.2, 0.3 ppm농도에 처리하였다. 참게의 생존율과 카드뮴과 수은의 중금속 농도와 양의 상관을 나타내었다. 그런데 96시간 사육시 카드뮴과 수은의 반수치사농도는 유생 단계간 유의한 차이를 나타내었다. 반수치사농도는 카드뮴이 수은보다 높았으므로 수은이 더 치명적이였다. 중금속의 축적은 카드뮴과 수은 모두 메가로파 시기부터 급격히 증가하였다. 따라서 참게의 유생의 생육에서 카드뮴과 수은은 참게 유생의 생존에 치명적이며 생물농축이 일어났다.

• 아시안잔디학회지
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• 제9권4호
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• pp.275-284
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• 1995

In this investigation, the accumulation mineralization and annual cycle of organic P has been studied in grassland ecosysterns of a Z japonica grassland and a M sinensis grassland on Mt. Kwanak. The basic models of the accumulation and mineralization for ash components of a grass-litter have been presented as the equations (1), (2), and (3). The equations (7)~(10) for organic P are derived from these basic concepts. There was a highty significant relationship between organic matter and organic P. The estimates between organic matter and organic P correlated very high significance. The parameter factors k or k' of mineralization of organic P for the Z. japonica and M sinensis asslands were k=0.412 or k'=0.292 and k=0.224 or k'=0.183, respectively. The time required for a cycle to be completed from organic P to inorganic P of 50, 95 and 99 % are 3.9, 16.7 and 27.8 years in the Z. japonica grassland and 4.1, 17.7 and 29.4 years in the M sinensis grassland. The annual P cycle formulae for mineralization were based on the equations (5), (11) and (12). Annual yields of mineralization for organic P in the steady state grasslands of Z. japonica and M sinensis were 0.407 and 0.504g /$m^2$, respectively.

• 한국지역사회생활과학회지
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• 제18권3호
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• pp.407-415
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• 2007

The aim of this study was to investigate the physiological functionalities of Codonopsis lanceolata, Glycyrrhiza uralensis, Chaenomeles sinensis, Crataegus pinnafida, and their mixtures. We also determined their antioxidative, fibrinolytic, and ${\alpha}-glucosidase$ inhibitory activities. The antioxidative activities of Codonopsis lanceolata, Glycyrrhiza uralensis, Chaenomeles sinensis, and Crataegus pinnafida were 79%, 88.3%, 89.9%, and 89.3% respectively. Their fibrinolytic activities were 0.80plasmin unit/mi, 0.57 plasmin unit/mi, 0.52 plasmin unit/mi, and 0.53 plasmin unit/mi respectively. The ${\alpha}-glucosidase$ inhibitory activity of Codonopsis lanceolata was 25%. The 10-fold diluents of Glycyrrhiza uralensis, Chaenomeles sinensis, and Crataegus pinnafida showed ${\alpha}-glucosidase$ inhibitory activities of 93.6%, 65.3%, and 61.3% respectively. In antioxidative activity tests of the medicinal plants mixtures at various ratios, the mixtures of Glycyrrhiza uralensis, Chaenomeles sinensis, and Crataegus pinnafida with Codonopsis lanceolata showed antioxidative activities of approximately 90%. In fibrinolytic activity tests mixtures(1:1) of Codonopsis lanceolata with Chaenomeles sinensis and Crataegus pinnafida exhibited increases of 23% and 24% in activity respectively. In ${\alpha}-glucosidase$ inhibitory activity tests, a mixture (4:1) of Codonopsis lanceolata and 10-fold diluted Glycyrrhiza uralensis showed an inhibitory activity of 98%, a mixture (3:1) of Codonopsis lanceolata and 10-fold diluted Chaenomeles sinensis showed an inhibitory activity of 69.6%, and a mixture (1:1) of Codonopsis lanceolata and 10-fold diluted Crataegus pinnafida showed an inhibitory activity of 50.2%. In conclusion, the mixtures of Glycyrrhiza uralensis, Chaenomeles sinensis, and Crataegus pinnafida with Codonopsis lanceolata will be used as a material for the development of biofunctional foods.

• Parasites, Hosts and Diseases
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• 제58권6호
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• pp.647-652
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• 2020

Clonorchis sinensis is the most common fish-borne intestinal parasite in Korea. The aim of the present investigation was to survey the status of C. sinensis infection and analyze associated risk factors in residents of Haman-gun, Gyeongsangnam-do. A total of 5,114 residents from 10 administrative towns/villages voluntarily agreed to participate in the study, which comprised fecal examination, a questionnaire survey for risk factors, ultrasonography, and enzyme-linked immunosorbent assay for cancer biomarker detection in the blood. We detected C. sinensis eggs in 5.3% of the subjects. By region, Gunbuk-myeon had the highest number of residents with C. sinensis eggs. The infection rate and intensity were higher in male than in female residents. Based on the risk factor questionnaire, infection was highly associated with drinking, a history of C. sinensis infection, and the practice of eating of raw freshwater fish. Extension of the bile duct, infection intensity, and cancer biomarker detection significantly correlated with the presence of eggs in the study population. In conclusion, the development of feasible, long-term control policies and strategies for the elimination of C. sinensis in Korea is still required.