• 제목/요약/키워드: indirect cause

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활동성 폐결핵 환자에서 혈중 리소솜 효소의 활성도 (Plasma Activity of Lysosomal Enzymes in Active Pulmonary Tuberculosis)

  • 고윤석;최정은;김미경;임채만;김우성;지현숙;김원동
    • Tuberculosis and Respiratory Diseases
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    • 제42권5호
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    • pp.646-653
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    • 1995
  • 연구배경: 폐결핵의 진단은 결핵균이 배양되면 확진이 되나, 실제 임상에서는 세균학적 진단이 양성으로 나타나지 않는 폐결핵 환자가 다수 존재하므로 활동성 위한 빠르고 확실한 진단방법이 임상에서 절실히 요구되고 있다, $\beta$-glucuronidase(이하 GLU)와 $\beta$-N-acetyl glucosaminidase(이하 NAG)는 폐내 탐식세포인 대식세포(macrophage)의 리소솜(lysosome) 효소들로서, 이산화규소가 폐내로 흡입되어 폐포내 대식세포에 의해서 탐식되고 이어서 대식세포가 파괴된 다고 알려진 규폐증에서 NAG의 혈중농도가 증가한다는 보고가 있었다. 또한 폐결핵에서도 세포내에서 증식된 결핵균을 충분히 사멸시키지 못하여 활동성 결핵 병변이 유발된 경우 파괴된 대식세포로부터 증식된 결핵균과 함께 GLU나 NAG도 유리될 것으로 추정된다. 본 연구는 활동성 폐결핵환자의 혈중 리소솜 효소 활성도가 비활동성 결핵환자나 정상대조군보다 높은지 여부와 혈중내 리소솜 효소의 측정이 활동성 폐결핵 진단법으로 이용될 수 있는지의 여부에 대해 알아보고자 하였다. 방법: 결핵균이 검출되어 활동성 폐결핵으로 진단된 환자군과 비활동성 폐결핵군 및 건강대조군에서 GLU와 NAG의 혈장내 농도 차이를 비교하였으며 활동성 폐결핵환자군에서는 투약에 따른 리소솜효소의 변동이 있는지를 관찰하기 위하여 투약후 2개월 뒤에 상기 효소들의 활성치를 다시 측정하여 진단시의 값과 비교하였다. 두가지 효소 모두 4-methylumbelliferyl substrates를 사용한 형광측정법으로 측정하였다. 결과: 1) 활동성 폐결핵군과 비활동정 폐결핵군 및 건강대조군 사이의 혈중 GLU와 NAG의 농도차이: 활동성 폐결핵군의 GLU 및 NAG의 혈중 농도는 $21.52{\pm}3.01$$325.4{\pm}23.37nmol$ product/h/ml of plasma(이하 단위표기생략)로서 비활동정 폐결핵군 $24.87{\pm}3.78$, $362.36{\pm}33.92$와 건강대조군 $25.45{\pm}4.05$, $324.44{\pm}28.66$ 사이에 차이가 없었다. 2) 활동성 폐결핵군에서 항결핵제 치료 전후의 혈중 NAG와 GLU의 농도차이: 활동성 폐결핵 치료시작 2개월후 GLU의 혈중치는 $41.18{\pm}5.23$으로서 치료전에 비해 통계적으로 유의하게 증가되었고(p값<0.05) NAG의 혈중농도는 $359.2{\pm}39.53$으로서 치료전과 차이가 없었다. 결론: 활동성 폐결핵환자의 혈장내 GLU 및 NAG의 농도는 비활동성 결핵군이나 건강대조군과 차이가 없었으므로 상기 효소들의 측정은 활동성 폐결핵 진단의 방법으로서 유용하지 않는 것으로 사료되었고 병 경과에 따른 혈중 GLU치의 증가에 대하여는 연구가 필요할 것으로 사료되었다.

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간호학생의 효과적인 자율학습을 위한 조사연구 (A Study on the Effective Independent Study of Nursing Student)

  • 김광주;이향련
    • 대한간호학회지
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    • 제8권1호
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    • pp.16-42
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    • 1978
  • This survey was made for a month starting from November 15 to December 15, 1977 covering 711 students taking the junior. (3rd-yea.) and the senior. (4th-year) at nine college of nursing in Seoul concerning their perception and Attitude toward the profession of nursing, motive for the necessity of learning, environment of study, attitude of study and particulars relevant with study performance, particulars of library, references and reading, assignments and particulars of the degree of confidence for the learning achievement. Through the survey of the above Particulars, the following results were obtained by classifying all subject matters and by analysing motive of the selection of their course, awarding or not awarding of scholarships. 1. General characteristics: it was revealed that 406 students (57.1%) were attending at the junior. while 305 students (42.9%) were taking the senior. Thus, the total number was 711 and their average age was 21.4 years. Their dwelling category was; 73.9 percent of them resided at their parent's home, 214 students (30.1%) were awarded with scholarships. The reason to be attracted by nursing science was the possibility of continuing social life after graduation (43.5%). 2. Their perception and attitude toward the profession of nursing: According to the perception of profession by the students of each grade, students of the 4th grade showed comparatively strong conception. Also, students of the 4th grade showed more positive attitude in the purchase and reading of magazines relative with the science of nursing, in the reading of Code for Nurses and in their interest in the activity of nursing field. For the necessity of mission of nurse, 97.7 percent of the entire number of students covered responded to necessity. For the necessity of the particular humanity and particularity in the character of nurses, 95.8 percent of those students responded to necessity. By the each grade, students of the 4th grade showed more response. 3. As to professional field desired after completing the professional course: 57 percent of those students desired for clinician nurse while 55 percents desired for community health-nurse. 4. As to the environment of study: they were mostly satisfied with their present residential environment. However, they complained of inconvenience at their lecture-halls. Students of the 3rd grade showed more complain. As to their attitude toward the adjustment of environment of study, they showed a affirmative response. As to the opinion of factors which interfere with their study, comparatively strong response was showed in their scepticism in the science of nursing, insufficient comprehension in general learning, relation with professors n4 discrepancy in the method of study. According to opinions of students at each grade, students of the 4th grade showed more scepticism. 5. Particulars relative with their attitude and performance of study : As to their knowledge of the objectives of their study of subject, the majority was to study with a partial knowledge of the objectives of their study. As to the plan of study, a low percentage indicated management of routine life under regular scheduling. Students of the 4th grade responded to rather planned life. As to time spent in independent study, response to concentrated study when necessary was stronger than that to regular daily study. Students of the 4th grade showed stronger response to regular study than that of the 3rd grade. As to the contents of their note-taking, 67.4 percents of those students responded to such regulatory procedure performing in the lecture-hall as they listen to lectures. 17.3 percents of those students showed response to adding supplementary informations from references to what was entered in choir note-taking at their lecture-halls. 6. Particulars of library, references and reading books: As to receiving of instruction for the utilization of library and time of receiving such instruction 64.7 percents of those students had received such instruction. 66.7 percents of the those responded received such instruction at orientation conducted for freshmen. As to the convenience of the utilization of library, 49.9 percents of those students responded to convenience. However, students of the 3rd grade showed a much stronger response to inconvenience. As to the time of the utilization of library,92.5 percents of those students showed a response to occasional utilization for particular purpose than regular utilization. 53.2 percents of those students responded to ordinary in quantity that library have references. 34.2 percents of those students responded to insufficient. As to the particular relative with the method and field of reading: 53.5 percents of those students responded to intensive reading and was the majority. As to the reading field, fiction u as the majority. When read any books for their major, they usually rend Korean text-b, oks. 7. Particular relative with giving assignment: All respondents were well aware of the objectives of giving home tasks. As to the attitude toward assignments and performing home tasks, 54.8 percents of those students to making ostentatious study because of an excessive quantity of assignments imposed. For performing assignment, they showed comparatively positive response. Also, 52.2 percents of those students responded that they usually submitted complected assignment with references. 8. As to motive to realize the necessity of study : 55.6 percents of those students responded that they realized such necessity in communication with patients when they were engaged in clinical practice. Also, 8.6, the lowest percents of those students responded that they realized such necessity in the course of conversation with nurses when they were engaged in clinical practice. 9. As to the determination of their confidence in the performance of study relative with clinical experience: They showed a general inclination of having in nursing. The major response was that they came to well comprehend the patients families. the lowest response was that they could apply what was learned at lecture-hall to practice. This response incidentally showed the distance the lecture-hall and practical study. In general items, students of the 4th grade showed more favorable response than students of the 3rd grade and there was a significant difference. 10. As to the perception and attitude toward profession according to the motive of selecting the nursing science : Those who selected the nursing voluntarily showed stronger conception than those who selected the nursing through indirect influence. However, there was no significant difference on this point. Only there was a remarkable difference in the reading of Code for Nurses. 11. Those who showed a stronger conception in the profession of nursing according to the motives of attractive nursing science indicated a strong will and ability to manage stable life and comparatively strong response was shown in the management of good home life because of the good adaptability of the science to their character. This group showed a strong conception of the profession than those who responded that they prefer this profession out of a longing for the work of a hospital and for the easy obtaining of opportunity to immigrate to over seas and for economic cause and for high school grade. There was significant difference between these two groups, 12. As to the conception and attitude toward the profession of nursing according to benefits by scholarships, those who were benefitted by scholarship showed stronger conception of profession than those who did not receive scholarship and there was a remarkable difference between these two categories. However, there was no remarkable difference between these two categories in the extent of interest of the activities of nursing fields and in the reading of Code for Nurses. 13. As activation for study according to the benefits of scholarships, those who were benefitted by scholarships showed stronger response to the motive for study comparing with those who receive. 14. As to tile field of reading according to the benefits by scholarships, those who received scholarships tended to read autobiographies and essayers to a considerable extent. Those who did not receive scholarships tended to read novels. Those who received scholarships more read nursing boots than those who did not receive scholarships. 15. As to the attitude of study and doing of assignment according to benefits of scholarships, those who received scholarships managed a favorable life with schedules for study, More students of receiving scholarship showed a regular study for more than one hour per day. Also, in the method of doing home tasks, more students of receiving scholarship showed reference to relative books frequently for the submission of completed assignments.

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질소영양(窒素營養)의 효율증진(效率增進)에 관(關)한 연구(硏究) (Studies on Increasing the Efficiency of Nitrogen Nutrition)

  • 곽판주
    • Applied Biological Chemistry
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    • 제11권
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    • pp.151-166
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    • 1969
  • I. 질소시용량(窒素施用童)과 배양조건(培養條件)이 고구마의 지상부(地上部) 생육(生育) 및 괴근형성(塊根形成)에 미치는 영향(影響) 1)배양액(培養液) 1l 당(當) 3m.e. $NO_3$-N의 저수준질소구(低水準窒素區) (A구(區))에서는 괴근생성(塊根生成)이 왕성(旺盛)하였으나 1l당(當) 10 m.e. 이상(以上)의 고수준질소구(高水準窒素區)($B_1{\cdot}B_2$ 구(區))에서는 세포신장(細胞伸長)은 활발(活潑)하였지만 괴근형성(塊根形成)은 이루어지지 않았다. 고수준질소(高水準窒素)의 괴근억제효과(塊根抑制效果)는 경엽생장(經葉生長)의 촉진(促進)을 통(通)한 간접적(間接的) 영향이나 탄수화물(炭水化物)에 대(對)한 경합관계(競合關係)보다 질소(窒素)의 직접적효과(直接的效果)나 어떠한 생기적효과(生機的效果)가 개재(介在)된 것으로 추측(推測)된다. 2) 배양액(培養液) 1l당(當) 6mg의 요소가용(尿素加用)은 생장(生長)을 촉진(促進)하고 특히 지상부(地上部)의 생체중(生體重)의 증가를 초래(招來)하였으나 초장(草丈)에 대(對)해서는 오히려 억제적(抑制的)이었다. 3) 본시험(本試驗)에서 새로히 설계(設計)된 수경배양법(水耕培養法)은 식물(植物)생육(生育)을 역경배양이상(礫耕培養以上)으로 왕성(旺盛)하게 하고, 특히 저수준질소구(低水準窒素區)(A구(區))에서는 역경배양(礫耕培養)과 같이 괴근생성(塊根生成)도 상당(相當)히 이루어졌다. 4) 식물생장억제제(植物生長抑制劑)인 B-nine의 엽면살포(葉面撒布)는 초장(草丈)을 억제(抑制)하였으나 다른 효과(效果)는 일정(一定)한 경향(傾向)을 보여주지 않았다. II. 요소시용량(尿素施用量)이 고구마 생육(生育)에 미치는 영향(影響) 1) 배양액(培養液)을 통(通)하여 근부(根部)에 흡수(吸收)된 고수준농도(高氷準濃度)의 질소(窒素)는 경엽생장(莖葉生長) 즉, 초장(草文), 입수(數), 생체중(生體重)을 억제(抑制)하고 있다. 이것은 아마도 Ammonia화(化) 되지 않은 요소태질소(尿素態奎素)의 직접적흡수(直接的吸收)에 의(依)한것 같다. 2) 제(第) I 부(部)에서 고수준질산태질소(高水準窒酸態窒素)는 괴근형성(塊根形成)을 불가능(不可能)케 하였으나 본시험(本試險)에서의 고수준요소(高水準尿素)는 괴근형성(塊根形成)을 가능(可能)케 하고 있다. 그러나 고수준요소구(高水準尿素區)(B구(區))에서의 지상부(地上部) 대(對) 괴근비(塊根比)는 저수준요소구(低水準尿素區)(A구(區))보다 낮고, 괴근발육(塊根發育)에 대(對)한 억제(抑制)정도는 지상부(地上部)에 대(對)한 억제(抑制)정도보다 더 큰것을 볼 수 있다. 3) 고수준요소(高水準要素)의 근부흡수(根部吸收)가 경엽생장(莖葉生長)을 억제(抑制)하는데 대(對)하여 같은 양(量)의 요소엽면시용(尿素葉面施用)은 경엽생장(莖葉生長)을 촉진(促進)하고 있다 따라서 지하부(地下部) 대(對) 지상부비(地上部比)는 요소엽면시용구(尿素葉面施用區)(C구(區))에서 가장 크고, 요소(尿素)의 근부흡수(根部吸收)에 의(依)한 저수준(低水準)(A구(區)) 및 고수준요소구(高水準尿素區)(B구(區))에서는 낮다. III. 요소시용(尿素施用)과 식물생장억제제처리(植物生長抑制劑處理)가 고구마 생육(生育)에 미치는 영향(影響) 1) 식물생장억제제(植物生長抑制劑)의 일종(一種)인 B-nine은 고수준요소구(高水準尿素區)나 저수준요소구(低水準尿素區)에 관계(關係)없이 전반적(全般的)으로 초장(草丈)을 억제(抑制)하고 있다. Gibberellin 단용(單用)은 초장(草丈)을 현저히 촉진(促進)하고 Gibberellin과 B-nine의 혼용(混用)은 B-nine의 초장억제(草丈抑制)를 회복(恢復)시키고 있다. 2) B-nine 처리(處理)는 저수준요소구(低水準尿素區)에서 현저히 고구마의 생체중(生體重)을 특히 지상부(地上部) 생체중(生體重)이 증가(增加)되었다. 고수준요소구(高水準尿素區)에서도 B-nine 처리(處理)는 생체중(生體重)을 증대(增大) 시키고 그정도는 농도에 따라 다르며 0.15% 처리구(處理 區)($B_1$구(c))가 가장 컸다. B-nine의 생체중(生體重) 증대효과(增大效果)는 지상부(地上部)에서 가장 크고 다음은 괴근(塊根)이며, 세근(細根)에서 가장 작았다. 따라서 지상부(地上部) 대(對) 세근비(細根比)는 B-nine 처리구(處理區)로서 어느 때나 감소(減少)되고, 지상부(地上部) 대(對) 괴근부(塊根部)는 저수준요소구(低水準尿素區)에서 감소(減少)하고 고수준요소구(高水準尿素區)에서는 오히려 증가(增加)되고 있다. 3) Gibberellin 단용(單用)도 고구마의 생체중(生體重)을 증대(增大)시키고 Gibberellin과 B-nine의 혼용구(混用區)($B_3$+GA구(區))는 각단용구(各單用區)보다 더욱 현저한 증대(增大)를 가져왔다. 즉 Gibberellin과 B-nine은 초장(草丈)에 대(對)해서는 길항작용(拮抗作用) 을, 생체중(生體重)에 대(對)해서는 상승작용(相乘作用)을 나타냈다. 4) B-nine 처리(處理)는 초장(草丈)과 생체중(生體重)에 대(對)해서 현저한 선택적효과(選擇的效果)를 나타냈다. 따라서 B-nine 은 Antimetabolite라기 보다 대사조정자(代謝調整者)로써 역할(役割)하는 것으로 본다. 5) 고수준요소(高水準尿素)의 공급(供給)으로 일어나는 작물생육억제(作物生育抑制)를 B-nine 처리(處理)로 회복(恢復)되있으며 이 사실(事實)은 실용적(實用的) 전망(展望)이 크다고 본다.

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