• 제목/요약/키워드: Life-stress

검색결과 6,100건 처리시간 0.041초

In silico characterisation, homology modelling and structure-based functional annotation of blunt snout bream (Megalobrama amblycephala) Hsp70 and Hsc70 proteins

  • Tran, Ngoc Tuan;Jakovlic, Ivan;Wang, Wei-Min
    • Journal of Animal Science and Technology
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    • 제57권12호
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    • pp.44.1-44.9
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    • 2015
  • Background: Heat shock proteins play an important role in protection from stress stimuli and metabolic insults in almost all organisms. Methods: In this study, computational tools were used to deeply analyse the physicochemical characteristics and, using homology modelling, reliably predict the tertiary structure of the blunt snout bream (Ma-) Hsp70 and Hsc70 proteins. Derived three-dimensional models were then used to predict the function of the proteins. Results: Previously published predictions regarding the protein length, molecular weight, theoretical isoelectric point and total number of positive and negative residues were corroborated. Among the new findings are: the extinction coefficient (33725/33350 and 35090/34840 - Ma-Hsp70/ Ma-Hsc70, respectively), instability index (33.68/35.56 - both stable), aliphatic index (83.44/80.23 - both very stable), half-life estimates (both relatively stable), grand average of hydropathicity (-0.431/-0.473 - both hydrophilic) and amino acid composition (alanine-lysine-glycine/glycine-lysine-aspartic acid were the most abundant, no disulphide bonds, the N-terminal of both proteins was methionine). Homology modelling was performed by SWISS-MODEL program and the proposed model was evaluated as highly reliable based on PROCHECK's Ramachandran plot, ERRAT, PROVE, Verify 3D, ProQ and ProSA analyses. Conclusions: The research revealed a high structural similarity to Hsp70 and Hsc70 proteins from several taxonomically distant animal species, corroborating a remarkably high level of evolutionary conservation among the members of this protein family. Functional annotation based on structural similarity provides a reliable additional indirect evidence for a high level of functional conservation of these two genes/proteins in blunt snout bream, but it is not sensitive enough to functionally distinguish the two isoforms.

Recent Developments in the Use of Intralesional Injections Keloid Treatment

  • Perdanasari, Aurelia Trisliana;Lazzeri, Davide;Su, Weijie;Xi, Wenjing;Zheng, Zhang;Ke, Li;Min, Peiru;Feng, Shaoqing;Zhang, Yixin;Persichetti, Paolo
    • Archives of Plastic Surgery
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    • 제41권6호
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    • pp.620-629
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    • 2014
  • Keloid scars are often considered aesthetically unattractive and frustrating problems that occur following injuries. They cause functional and cosmetic deformities, displeasure, itching, pain, and psychological stress and possibly affect joint movement. The combination of these factors ultimately results in a compromised quality of life and diminished functional performance. Various methods have been implemented to improve keloid scars using both surgical and non-surgical approaches. However, it has proven to be a challenge to identify a universal treatment that can deliver optimal results for all types of scars. Through a PubMed search, we explored most of the literature that is available about the intralesional injection treatment of hypertrophic scars and keloids and highlights both current (corticosteroid, 5-fluorouracil, bleomycin, interferon, cryotherapy and verapamil) and future treatments (interleukin-10 and botulinum toxin type A). The reference lists of retrieved articles were also analysed. Information was gathered about the mechanism of each injection treatment, its benefits and associated adverse reactions, and possible strategies to address adverse reactions to provide reliable guidelines for determining the optimal treatment for particular types of keloid scars. This article will benefit practitioners by outlining evidence-based treatment strategies using intralesional injections for patients with hypertrophic scars and keloids.

이상지질혈증과 치료제 연구개발 경향 (Drug research and development tend to hyperlipidemia)

  • 설인찬
    • 혜화의학회지
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    • 제18권2호
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    • pp.1-12
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    • 2009
  • Most of the cholesterol is synthesized by liver in the body while about one of third is taken via dietary. The main functions of cholesterol is to protect membranes in cell surface, avoid the arterial bleeding by hypertension, and prolong the life of erythrocytes, and so on. However, overload of cholesterol leads to arteriosclerosis associated with leading death cause. Lack of physical activity, emotional and environmental stress, and low intake of protein or vitamin E induce the unbalance between HDL- and LDL-cholesterol so become a basis of ischemic disorders in heart, brain and elsewhere in the body. So far, four major classes of medications for hyperlipidemia are HMG-CoA reductase inhibitors (statins), bile acid sequestrants, nicotinic acid, and fibric acids. The statins can lower LDL and levels triglyceride, but may induce myopathy and an elevation of liver enzyme levels. The bile acid sequestrants lower LDL levels and raise HDL levels with no effect on triglyceride levels but side effects of gastrointestinal (GI) distress, constipation, and a decrease in the absorption of other drugs. Nicotinic acid and fibric acids lower LDL and triglyceride levels with showing flushing, hyperglycemia, hyperuricemia, GI distress, and hepatotoxicity dyspepsia, gallstones, myopathy, and unexplained noncardiac death as adverse effects. Above western drugs lower cholesterol by 15 to 30% while all have notable adverse effects. In traditional medicine, hyperlipidemia is regarded as retention of phlegm and fluid disease. Etiology and pathogenesis of hyperlipidemia is basically based on Spleen-Deficiency and Phlegm-Stagnation, accumulation and stasis of -heat, and Qi & blood stagnation induced by Phlegm-damp, water-dampness, and blood stasis. Thereby, strengthening Spleen and dissolving Phlegm, clearing away heat and diuresis, and supplementing Qi and activating blood circulation are commonly used therapeutic methods for hyperlipidemia. The traditional herbal medicine, have been used for patients with CVA, hypertension or hyperlipidemia in Oriental hospital or Oriental clinic. The lock and key theory is used to develop most of western medicine, however many diseases are caused by mixed factors in body-complex system. We expect that Oriental pharmacological theory could be newborn as a novel drug showing high advantage of blood levels of lipidsand QOL of performance without side effects.

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High-level Production of Recombinant Human IFN-$\alpha2a$ with Co-expression of $tRNA^{Arg(AFF/AGA)}$ in High-cell-density Cultures of Escherichia coli

  • Shin, Chul-Soo;Hong, Min-Seon;Shin, Hang-Chel;Lee, Jeewon
    • Biotechnology and Bioprocess Engineering:BBE
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    • 제6권4호
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    • pp.301-305
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    • 2001
  • The co-expression of the arg U gene in a double-vector expression system of recombi-nant Escherichia coli BL22(DE3)[pET-IEN2a+pAC-argU] significantly enhanced the production level of reconminant human interferon -$\alpha$2a(rhIFN-$\alpha$2a) in high cell density cultures, compared to a recombinant E. coli culture containing only the single expression vector, pET-IEN2a. The dry cell mass concentration increased to almost 100 g/L, and more than 4 g/L of rhIFN-$\alpha$2a was accumu-lated in the culture broth. Evidently, the synthesis of rhIFN-$\alpha$2a was strongly dependent on the pre-induction growtih rate and more efficient at a higher specific growth rate. The additional sup-ply of tRN $A^{Arg(AGG/AGA)}$ enhanced the expression level of the rhIFN-$\alpha$2a gene in the early stage of the post-induction phase, yet thereafter the specific production rate of rhIFN-$\alpha$2a rapidly de-creased due to severe segregational instability of plasmid vector pET-IEN2a. It would appear that the plasmid instability with only occurred to pET-IEN2a in the double vector system, was re-lated to the effect of translational stress due to the over expression of rhIFN-$\alpha$2a.

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탄소원에 따른 Bacterial Cellulose 의 물성 (Properties of Bacterial Cellulose Cultured in Different Carbon Sources)

  • 박상민;윤상준;손홍주;이충렬;김홍성
    • 폴리머
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    • 제34권6호
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    • pp.522-526
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    • 2010
  • Bacterial cellulose는 초산균인 Gluconacetobacter xylinus에 의해 생산되며, 배양 배지의 표면에 나노섬유상의 막을 형성한다. 본 연구에서는 배지의 조성에서 탄소원을 달리하여 생산한 bacterial cellulose의 결정화도, 점도, 모폴로지와 역학적 물성을 살펴보았다. Gluconacetobacter sp. V6 균은 세 종류의 배양 배지에서 정치 상태로 배양되었다. 배양 배지로는 표준 Hestrin-Schramm 배지와 탄소원으로 glycerol 또는 molasses를 첨가한 개질 배지가 각각 사용되었다. 세포 성장과 셀룰로오스 수율은 molasses 배지와 glycerol 배지에서 증가하였다. Glycerol 배지를 사용한 배양은 결정화도와 고유점도, 파단응력과 같은 셀룰로오스의 물성을 향상시켰으나, molasses 배지를 사용한 배양은 셀룰로오스의 결정화도, 미결정의 크기, 고유점도를 감소시켰다. 요약하면, molasses 배지에서 셀룰로오스의 수율은 현저히 향상되었으나, 낮은 구조적 물성을 가졌다.

청소년기의 경계선 인격장애 (BORDERLINE PERSONALITY DISOREDER IN ADOLESCENTS)

  • 장경준;정제연
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • 제6권1호
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    • pp.34-42
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    • 1995
  • 청소년기의 경계선 인격장애는 충동조절의 결여, 타인에 대한 평가절하와 자신보다는 대상에 대하여 만족감을 얻으려는 욕구, 분리 방어기제를 특징으로 하는 인격장애로서 성인의 경계선 인격장애와 비슷한 양상으로 나타난다. 청소년기의 경계선 인격장애의 주요한 증상은 우울, 불안, 정체성 위기와 이러한 정체성 위기로 인한 반사회적인 행동을 흔히 볼 수 있다. 따라서 이들 증상들과 정상 청소년들이 보일 수 있는 질풍노도의 양상과 구별이 힘든 경우가 있다. 경계선 인격장애에서는 대상관계의 불안정, 정동의 불안정, 분리 등 미숙한 방어기제로 인해서 심한 스트레스하에서 정신병적 삽화가 나타날 수 있으며, 이로인해 정신분열증, 정동장애, 분열형 인격장애, 편집형 인격장애등과 감별진단이 필요하다. 청소년기 경계선 인격장애의 원인으로는 정신역동적 요소, 유전적 요인을 포함한 생물학적 요소, 가족역동적인 요소등을 복합적으로 고려해야 한다. 치료는 개인정신치료, 그룹치료, 가족치료, 약물치료 등이 있다. 소아 청소년기 경계선 인격장애가 성인기 경계선 인격장애로 될 것인가에 대해서는 논란이 되고 있다.

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결혼 이주여성 대상 중재연구 분석 (Analysis of Intervention Studies for Married Immigrant Women)

  • 김태임;김지영;최선미;정계현
    • 지역사회간호학회지
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    • 제24권2호
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    • pp.172-184
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    • 2013
  • Purpose: The purpose of this study is to analyze the intervention studies for married immigrant women. Methods: Based on inclusion criteria, 45 articles published from 2006 to 2011 were reviewed and analyzed. Results: Among the total amount of studies, 77.8% have been conducted since 2009; and 46.7% of them were for a master's thesis, 11.1% were for a doctoral thesis, and 42.2% were journal articles. Most of them were quantitative research (77.8%) and 71.1% were conducted in urban areas. The most frequently conducted intervention was art therapy (35.6%), whereas 6.7% was health education. In total, 104 outcome indicators were used with 57 (54.8%) in the mental health domain, 29 (27.9%) in the social health domain, and 18 (17.3%) in the physical health domain. The most commonly used outcome indicator was self-esteem (23.2%), and the next, in the order of frequency, included self-efficacy (23.2%), acculturative stress (21.4%), and depression (10.7%). Conclusion: Most intervention studies were conducted to support the sociocultural adaptation of married immigrant women, while few intervention studies were conducted to support the health of married immigrant women. To promote the health and quality of life of married immigrant women, many health related intervention programs should be undertaken.

일부 농촌지역 건강관리 실태에 관한 조사연구 (A Study on the Health Care Status In a Rural Area)

  • 인경선;한명화
    • 한국보건간호학회지
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    • 제8권1호
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    • pp.73-83
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    • 1994
  • This study was conducted to investigate rural residents' health status and lifestyle before inputing the health promotion services in CHP post juridiction area. For the survey. questionaire survey was done during the period from September 1993 to October 1993. Questionare was composed 14 items of general characteristics and 12 items of health age. Respondents were 119 residents among 300 residents in a rural area. For the analysis. descriptive statistics were used by calculating frequencies. percentages and $x^2-test$ Were employed to test the differences and the statistical significance. The major results are as follows; 1. Characteristics of the objects: The sex $61.0\%$ of female. the age was $36.0\%$ of over the fifties. the educational background was $47.4\%$ of elementary graduation. the marital status was $94.9\%$ of married and the monthly income was $35.3\%$ of less than 600,000 won. 2. Health status of the objects; Hepatitis antibody was possessed only $6.2\%$. hypertension was $27.3\%$. pulse rate and disease status were. for the most part, normal. 3. Health care status of the objects: They didn't use $74.1\%$ of medical services for the two weeks and regular health check-up. 4. Health behavior of the objects: The diet was $78.1\%$ of intaking meats and fish below 4 times for 1 week, no smoking was $66.1\%$. drinking was $70.83\%$ below two and half times for 1 week, life satisfaction was $21.8\%$. stress management was $41.5\%$ and exercise for health was $25.2\%$. 5. Experience of common cold for 3 years was $46.2\%$. hypertention by sex was $8.7\%$ of males and $19.4\%$ of females and diabetus was $1.7\%$ 6. Helth behavior by educational background didn't do in low educational background. 7. Health age of the objects was $62.3\%$ of $+1\~+4$ than actual age.

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일 지역 보건소 금연클리닉 이용자의 흡연유혹, 자기 효능감 및 금연상담 만족도 (Smoking Temptation, Self-efficacy, and Satisfaction with Counseling among Users of Smoking Cessation Counseling Services Provided by a Public Health Center)

  • 함옥경;유재복
    • 한국보건간호학회지
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    • 제22권2호
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    • pp.246-254
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    • 2008
  • Purpose: In order to assess the effects of smoking cessation counseling provided by a public health center in terms of smoking temptation, smoking cessation self-efficacy, and satisfaction with smoking cessation counseling, and also to provide baseline data for the improvement of smoking cessation counseling programs. Methods: A total of 52 current and former smokers who utilized smoking cessation counseling provided by the health center at least once participated in this study. Using a self-report survey method, data were collected in November 2005. Results: The mean age and duration of smoking of the participants were 49 and 28 years, respectively. Seventy-one percent had experienced smoking cessation trials prior to using the counseling services, and most of the participants had utilized smoking cessation counseling less than 5 times. Mean scores of temptation, self-efficacy, and satisfaction with counseling were $3.39{\pm}0.75,\;3.80{\pm}0.66$, and $4.38{\pm}0.55$ (range,1-5), respectively. The participants were largely vulnerable to smoking temptations under conditions of anxiety or stress. The duration of counseling was associated negatively with smoking temptation, but was associated positively with self-efficacy. Conclusion: To help adopt and maintain smoking cessation, smoking cessation counseling should emphasize methods for coping with smoking temptations and to increase smoking cessation self-efficacy in various tempting situations.

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우리나라 노인의 배우자 유무와 우울과의 관련성 (The Relationship between Existence of Spouses and Depression of Korean Elderly)

  • 박형수;정미화;유진호
    • 한국전자통신학회논문지
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    • 제7권5호
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    • pp.1181-1187
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    • 2012
  • 노인 우울은 삶의 만족을 저하시킬 뿐 아니라 노인 자살의 중요한 위험요인이다. 본 연구에서는 남자와 여자 노인의 배우자 유무와 우울과의 관련성에 대하여 질병관리본부에서 실시한 4기 2차년도 2008년 국민건강영양조사 대상자중 65세 이상 노인 남자 615명, 여자 904명을 연구대상으로 하였다. 분석은 카이제곱 검정과 다중로지스틱 회귀분석을 통해 일반적 특성, 이환 및 건강관련 특성과 우울과의 관련성을 파악하였다. 연구결과 연령, 가구소득, 주관적 건강상태, 활동제한 유무, 스트레스 정도 등을 보정한 다중로지스틱 회귀분석에서 배우자가 없는 남자 노인의 비차비는 2.37(95% CI 1.03-5.45)로 우울을 더 느꼈으며, 여자노인의 경우에서는 배우자의 유무와 우울과는 관련성이 없었다.