• Title/Summary/Keyword: physiological factors

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Physiological Response of Tetrapleura tetraptera (Schum. and Thonn.) Taub. to Soil Textural Class, Moisture and Light Intensity

  • Akinyele, Adejoke O.;Wakawa, Lucky Dartsa
    • Journal of Forest and Environmental Science
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    • v.33 no.2
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    • pp.97-104
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    • 2017
  • Investigation was carried out on response of Tetrapleura tetraptera (Schum. and Thonn.) to soil, water and light with the view of its domestication and introduction to different ecological regions. The experiment was arranged in a factorial experiment of $3{\times}3{\times}3$ in a completely randomized design (CRD) with three replicates. The factors were: soil textural class (Loamy sand, Sand and Sandy clay loam), watering regime (daily, twice a week and once a week) and light intensity (100%, 75% and 50%). Soil textural classes had significant influence on collar diameter, stem height, number of leaflets, root/shoot ratio and relative growth rate of Tetrapleura seedlings. Seedlings grown on loamy sand recorded the highest mean value- 2.28 mm for collar diameter, stem height- 12.9 cm, number of leaflets- 19.9, chlorophyll b- $0.34mg\;mL^{-1}$, leaf relative water content- 27.4% and relative growth rate- $0.037mg\;g^{-1}\;day^{-1}$. Watering regime had significant influence on the collar diameter of Tetrapleura. Seedlings watered daily recorded the highest mean value- 2.25 mm for collar diameter. Light intensity significantly influenced collar diameter and root/shoot ratio. Seedlings exposed to 100% light intensity recorded higher mean value for collar diameter- 2.28 mm and root/shoot ratio- 1.481 cm. The interaction between soil textural class and light intensity significantly affected collar diameter, stem height and number of leaflets. Higher mean value for collar diameter (2.47 mm) stem height (13.25 cm) and number of leaflets (21.16) were recorded while the interaction between soil textural class, light intensity and watering regime was significant for only number of leaflets. Tetrapleura exhibited some level of tolerance to different soil texture, drought and light intensity. Therefore, Tetrapleura has the potentials to be raised in different ecological zones characterized by difference in soil, rainfall and amount of sunshine.

Characterization of Matrix Metalloproteinase Expression in Triglyceride Treated THP-1 Macrophages

  • Cho, Yoonjung;Lim, Jaewon;Lee, Dong Hyun;Jung, Byung Chul;Lee, Min Ho;Jung, Dongju;Kim, Yoon Suk;Kim, Tae Ue;Rhee, Ki-Jong
    • Biomedical Science Letters
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    • v.19 no.1
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    • pp.9-16
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    • 2013
  • Elevated blood triglyceride (TG) levels correlate with development of atherosclerosis suggesting that TG may promote the development of this disease. During atherosclerosis, TG is taken up by tissue macrophages which result in dramatic changes in various secreted factors. One such factor is the family of matrix metalloproteases (MMP) which are involved in tissue remodeling during both physiological and pathological processes. In this study, we examined the MMP expression profile in PMA-differentiated THP-1 macrophages treated with TG. We found that TG-treated THP-1 macrophages showed decreased expression of MMP-3, MMP-7, MMP-8 and MMP-9 in a time- and dose-dependent manner. In contrast, expression of MMP-1, MMP-2, and MMP-10 remained relatively unchanged after TG treatment. In addition, we found that expression of select MMPs was affected by various inhibitors of signaling pathways. In particular, expression of MMP-3 was slightly recovered by cRAF and PLC signaling pathway inhibitors. These data suggests a possible role of MMPs in macrophages during TG-induced atherosclerosis.

Identification and Characterization of Three Differentially Expressed Ovarian Genes Associated with Ovarian Maturation in Yesso Scallop, Patinopecten yessoensis

  • Kim, Young-Ju;Kang, Hye-Eun;Cho, Gyu-Tae;Suh, Young-Sang;Yoo, Myong-Suk;Kim, Hyun-Woo
    • Fisheries and Aquatic Sciences
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    • v.12 no.4
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    • pp.276-285
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    • 2009
  • Despite great commercial interest, relatively little has been described about molecular mechanism of bivalve reproduction. We investigated genes involved in ovarian maturation of the Yesso scallop, Patinopecten yessoensis. GSI index and histological analysis revealed that maturation of ovary begin in February and spawning period is from April to June which is similar to the previous study in the East Sea. As result of combination analysis of differential display RTPCR (DDRT-PCR) and histological examination, vitellogenin (Vg), ferritin (Ft) and ADT/ATP carrier protein (ACC) were identified as differently expressed genes in maturating ovary. Endpoint RT-PCR results showed that Vg is ovary-specific genes whereas Ft and ACC are expressed ubiquitously suggesting that Vg can be good molecular markers for ovarian development and sex determination in bivalves. Quantitative PCR results revealed that Vg were expressed highest during growth stage and appears to play a major role in oocyte maturation. On the contrary, expression of Ft was highest after spawning stage, which suggests that up-regulation may be involved in spawning and inactive stages in which the scallops recover from spawning. In addition, high level of the mitochondrial gene, ACC, may play a role in energy metabolism in maturating oocytes. Isolation and molecular studies of these key genes will expand our knowledge of the physiological changes from various exogenous factors including temperature, salinity, pH, even or numerous endocrine disrupting chemicals (EDCs) during reproductive cycle. In addition, further study of these genes implicates various industrial applications including the stable seed production, increased food quality, or economic aquaculture system.

Induction of transforming growth factor-beta 1 by androgen is mediated by reactive oxygen species in hair follicle dermal papilla cells

  • Shin, Hyoseung;Yoo, Hyeon Gyeong;Inui, Shigeki;Itami, Satoshi;Kim, In Gyu;Cho, A-Ri;Lee, Dong Hun;Park, Won Seok;Kwon, Ohsang;Cho, Kwang Hyun;Won, Chong Hyun
    • BMB Reports
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    • v.46 no.9
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    • pp.460-464
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    • 2013
  • The progression of androgenetic alopecia is closely related to androgen-inducible transforming growth factor (TGF)-${\beta}1$ secretion by hair follicle dermal papilla cells (DPCs) in bald scalp. Physiological levels of androgen exposure were reported to increase reactive oxygen species (ROS) generation. In this study, rat vibrissae dermal papilla cells (DP-6) transfected with androgen receptor showed increased ROS production following androgen treatment. We confirmed that TGF-${\beta}1$ secretion is increased by androgen treatment in DP-6, whereas androgen-inducible TGF-${\beta}1$ was significantly suppressed by the ROSscavenger, N-acetyl cysteine. Therefore, we suggest that induction of TGF-${\beta}1$ by androgen is mediated by ROS in hair follicle DPCs.

The Significance of Managing "Mibyeng" in Geriatric Health by Focusing on the Connection between Korean Medicine and Psychology: A Review (노년기 건강에 있어 미병(未病) 관리의 의의: 한의학과 심리학의 연관성을 중심으로)

  • Bae, Suhyun;Park, Miso;Lee, Siwoo;Beak, Younghwa;Yoo, Horyong;Kim, Giyeon
    • Journal of Oriental Neuropsychiatry
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    • v.31 no.2
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    • pp.109-119
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    • 2020
  • Objectives: The aim of this study is to review the significance of managing "Mibyeong" in geriatric health in Korean medicine and psychology. Methods: We performed a literature search using OASIS, Koreantk, RISS, DBpia, and PubMed databases. We retrieved research articles using the keywords related to mibyeong (未病), sub-health (亞健康), Korean-medicine, psychology and geriatric health. Results: Both Korean medicine and psychology emphasize biological, psychological, and social balance and well-being. In addition, both value individual personality and constitution. Mibyeong is a Korean medical concept suggesting sub-health. Elderly individuals who are in a state of Mibyeong are frail and vulnerable to disorders and illness. Since depression, chronic diseases, low physical and mental activity have fatal outcomes in frail and elderly subjects, positive psychological support and active management of Mibyeong are very important. Conclusions: Geriatric health conditions are associated with chronic disease and multiple risk factors, including physiological, psychological, social, and economic conditions. A preventive and integrative approach is essential for geriatric health as prevention is better than cure for most geriatric diseases and illnesses.

Research on the Conflicts and Future Direction of Integrative Medicine in Korea (한.양방 통합의료의 갈등과 방향에 대한 연구 - 한.양방 의료 및 관련 종사자 대상 심층면접을 중심으로 -)

  • Lim, Eun Jin;Kim, So Yun;Sohn, Myoung Sei;Choe, Pyung Nak;Oh, Byeong Sang
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.28 no.2
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    • pp.243-250
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    • 2014
  • This study examined the knowledge and understanding of integrative medicine in Korea, specifically conflicts between western and oriental medicine within Parallel (Dual) health care systems. Qualitative methodology using grounded theory guided semi-structured, in-depth interviews with Western Medical Doctors (W.M.D., n = 6), Oriental Medical Doctors (O.M.D., n = 5) and Traditional Chinese Medicine Practitioners (T.C.M.P., n = 4). Thematic analysis was used to determine broad themes from the interviews. 15 professionals (W.M.D. (40%), O.M.D. (33%), T.C.M.P. (27%), 10 males (67%) and 5 females (33%), mean age 45) were interviewed, recorded, and transcribed. Thematic analysis revealed three key themes: systematic conflicts, integration and future directions. Subthemes of systematic conflicts included: credibility of Oriental Medicine, commercial imperatives, maintaining social standing of O.M.D., professional qualifications and lack structures supporting collaborative practice. Integration subthemes included lack of academic linkage and clarity for appropriate triage, opposing medical paradigms and limited social imperative. Future directions should include: social justification, guarantee of oriental medicine legitimacy, role of government and understanding of scientific evidence. To successfully integrate dual medical systems there is a need to address differences in social-environmental factors and perceptions of scientific understanding, as well as developing strong academic links in clinical practice.

Effect of Seawater Concentration on Seed Germination and Seedling Growth of Artemisia fukudo (해수농도가 큰비쑥의 종자발아 및 유식물 생장에 미치는 영향)

  • Ko, Myoung-Suk;Bae, Kee-Hwa;Lee, Mi-Hyun;Kim, Nam-Young;Lee, Yeon-Kyung;Han, Myoung-Soo;Song, Jae-Mo;Song, Gwanpill
    • Journal of Forest and Environmental Science
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    • v.30 no.1
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    • pp.120-125
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    • 2014
  • Halophytes are plants of saline habitats that grow under conditions that may vary in extremes of temperatures (freezing to very hot), water availability (drought to water logging) and salinity (mild to almost saturation). Halophytes may also face sudden micro-environmental variations within their habitats. In this study, we examine some of the factors that determine the ability of seeds of Artemisia fukudo to germinate when conditions are optimal for seedling growth and survival. Germination percentage was the highest at 77.5% when treated in 0% seawater and seedling growth was best in 0% seawater plug cell tray. Physiological quality (chlorophyll contents) and mean germination time were best in the condition in which seeds were treated with 0% seawater (control). Germination performance index in the control group showed the highest value to 3.8. Seedling growth, seedling vigor index in the length of seedling growth andthe relative growth rate were the highest values of 0.76 cm, 1.43, 0.0099, respectively.

The comparative study of activity ability of daily livings, body pain and emotional states between elders living alone and those living with others (독거노인의 생활활동능력과, 신체통증과 정서상태에 관한 비교연구)

  • Shin, Young-Seok;Kim, Woo-Seop;Shin, I-Su;Choi, D.K.;Chae, Seon-Ah;Jung, Duk-Young;Kim, Kyu-Ho
    • Journal of rehabilitation welfare engineering & assistive technology
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    • v.12 no.1
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    • pp.29-37
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    • 2018
  • In this research, one's ability to perform activities of daily living, body pain, and emotional states of elders who live alone and elders who live with others were compared to investigate which factors affect senior's health state. The data was collected from 88 seniors and analyzed for the comparison. Compared to seniors who live with others, elders who live alone had lower activity of daily livings, stronger body pain, and instability in emotional states. These 3 aspects showed a statistical significance of correlation. As a result of further analysis, not only residential types(living alone or living with others), but also life pattern(indoor or outdoor) is affected on the results. It is expected that the results of this research could be used as basic data for physiological index to evaluate senior's health state and care service for seniors who live alone.

Relationships between depression, anxiety, 'exterior-interior pattern and cold-heat pattern' and Heart Rate Variability in healthy Subjects (건강인의 표리 한열 변증, HRV, 우울, 불안 지표의 상관성 분석)

  • Kim, Ji-Eun;Lee, Jeong-Chan;Kang, Hee-Chul;Lee, Seung-Gi;Park, Kyung-Mo
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.20 no.2
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    • pp.482-487
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    • 2006
  • The identification of the exterior-interior pattern and the cold-heat pattern is one of the most frequently used diagnostic methods in Oriental medicine. No systematic studies, however, have yet been conducted to determine the emotional and autonomic factors involved in the exterior-interior and cold-heat. In this study, the relationships between depression, anxiety, and the exterior-interior and cold-heat patterns in 100 healthy female volunteers with a mean age of 42.77 were also investigated. The autonomic nervous system's control of human temperature is a well known fact. Thus, this paper also aimed to investigate the correlationof the autonomic nervous system and patterns of the exterior-interior and cold-heat. The analysis of heart rate variability (HRV), which has become a popular non-invasive tool for assessing the activities of the autonomic nervous system, was conducted in this study. No relationship was found between the exterior-interior and cold-heat pattern scores and the degree-of-depression scores. But there was a significant difference between the exterior-interior and cold-heat pattern scores of the different anxiety types, and between those of the different anxiety levels. The depression and anxiety levels also had an effect on the HRV indices.

Contrivance of Integrated Pattern Differentiation Method for Diagnostic Unification of Exogenous Contagious Diseases (다양한 유행성 감염병의 진단 일원화를 위한 통합변증방법 연구)

  • Chi, Gyoo Yong
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.30 no.1
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    • pp.1-6
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    • 2016
  • In recent years, there were frequent exogenous contagious diseases in Eastasia like SARS(severe acute respiratory syndrome), Avian influenza, Swine influenza, MERS etc. But there are various interpretations about their pathological differentiations and lead to controversy to diagnosis and medicinal use. So there needs universal and consistent understanding methods. Several conclusions are obtained from the research on differentiation theories of various epidemic diseases. Essential elements of differential diagnostic system are pathogen, characters and matters of disease and loci, especially three yin and three yang has close affinity with constitutional features or body shape. Binding these 3 categories, an integrated differentiation 3 dimensional coordinates are made. Out of these, each elements of 3 pathogen-axial lines are related with names of exogenous disease, and those of 3 feature-axial lines are related with 8 principal patterns. And those of 3 locus-axial lines implicating therapeutic method are related with steps and location of exterior and interior, 3 yin 3 yang, Defense, Qi, Nutrient and Blood, five viscera and six bowels and tissues. Additionally, 3 lines of each axis consist of factors which have their own affinity each other, so classification of pathogen, feature, locus of disease has layered interconnectedness. This classification system is included in constitutional features of individual patient. Afterwards, these cognitive structure can be used as a general theory guiding method of therapy, prevention and aftercure healthcare.