• 한국산림과학회지
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• 제113권2호
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• pp.198-209
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• 2024

본 연구에서는 차광 수준에 따른 광환경의 차이가 갯활량나물의 생리 반응에 미치는 영향을 조사하기 위해 차광 처리에 따른 갯활량나물의 엽면적당 건중량, 엽록소 함량, 엽록소 형광 반응 및 광합성 특성을 측정하였다. 갯활량나물의 경우 차광 수준이 높아짐에 따라 엽면적이 증가하고 엽면적당 건중량이 감소하여 낮은 광도 조건에서 광형태형성학적인 적응을 보였다. 생리생태학적 적응 반응은 50% 차광 수준에서 엽록소 함량, 광포화점, 광합성률, 탄소고정효율, 기공전도도, 증산속도, 수분이용효율 등 전반적으로 광합성 기능이 양호했던 반면, 95% 차광 수준에서는 생육에 필요한 최소 광도 조건이 충족되지 못하여 광합성 기능이 크게 저하되는 것으로 나타났다. 이를 통해 갯활량나물의 생육에 있어서는 50% 차광 수준이 가장 적절한 것을 알 수 있었다. 본 연구 결과는 갯활량나물의 효과적인 현지외 보전을 위한 적지 선정 및 기반 조성을 위한 자료로 활용될 수 있을 것으로 기대되며, 이후 차광 처리에 따른 식물 생장에 대한 연구가 보완되어야 할 것으로 생각된다.

• 한국실내디자인학회논문집
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• 제22권5호
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• pp.188-198
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• 2013

Advancement toward aging society has presented the importance of house planning in consideration of the elderly, increasing the necessity of such planning. Therefore the importance of indoor design guideline for elderly houses has been stressed and the understanding of the aging in regard to this trend will create more mature spaces. In line with this trend the purpose of this study is to study the medical factors related with bathroom interior design guidelines of the existing elderly houses from the viewpoint of deteriorating physical functions due to aging process. In order to research the deterioration of physical functions due to aging literatures of medical and exercise physiology were used and concerning the existing bathroom design guidelines for the aged people, the guideline items of behavior facilitation, physiological maintenance and perceptual maintenance aspects out of Murtha & Lee's user benefit criteria(1976) related with physical functions were selected to research in relation with the knowledge about the deterioration phenomena of physical functions. Physical aging and deterioration aspects were classified from the viewpoint of musculoskeletal disorder, cardiovascular disorder, respiratory disorder, gastronomy disorder, urology disorder, somatosensory disorder, endocrine disorder, immune disorder, nervous disorder and skin diseases and these were utilized in interpreting total 100 items of bathroom design guideline. Because bathroom is the space where many physical movements are done, it had the closest relationship with the deterioration of musculoskeletal health in general and as bathroom is the space where people use water and feel the difference in temperature and moisture more than other spaces, deterioration of skin and somatosensory health had the next closest relationship. The result of this study revealed that regarding the deterioration of physical functions of the elderly people in aspect of their perceptibility as designers will design creatively and sincerely based on its relationship with nervous system in future, the result of this study will be used to develop better spatial designs efficiently to meet for the aging society.

• BMB Reports
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• 제44권9호
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• pp.559-565
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• 2011

Protein kinase C (PKC) is a central enzyme that modulates numerous biological functions. For this reason, specific PKC inhibitors/activators are required to study PKC-related signaling mechanisms. To date, although many PKC inhibitors have been developed, they are limited by poor selectivity and nonspecificity. In this review, we focus on the nonspecific actions of PKC inhibitors on cardiovascular ion channels in addition to their PKC-inhibiting functions. The aim of this paper is to urge caution when using PKC inhibitors to block PKC function. This information may help to better understand PKC-related physiological/biochemical studies.

• Journal of Microbiology and Biotechnology
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• 제16권11호
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• pp.1661-1677
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• 2006

Rhizobium and related genera are soil bacteria with great metabolic plasticity. These microorganisms survive in many different environments and are capable of eliciting the formation of nitrogen-fixing nodules on legumes. The successful establishment of symbiosis is precisely regulated and requires a series of signal exchanges between the two partners. Quorum sensing (QS) is a prevalent form of population density-dependent gene regulation. Recently, increasing evidence indicates that rhizobial quorum sensing provides a pervasive regulatory network, which plays a more generalized role in the physiological activity of free-living rhizobia, as well as during symbiosis. Several rhizobia utilize multiple, overlapping quorum sensing systems to regulate diverse properties, including conjugal transfer and copy number control of plasmids, exopolysaccharide biosynthesis, rhizosphere-related functions, and cell growth. Genomic and proteomic analyses have begun to reveal the wide range of functions under quorum-sensing control.

• 대한한의학원전학회지
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• 제26권2호
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• pp.1-7
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• 2013

Objective & Method : By investigating physiological function of tri-energizer, symptoms, and organ coordination, we obtained following conclusion. Tri-energizer is the membrane structure that surrounds the five visceral organs and six hollow organs, and filled with fluid. Tri-energizer acts as the passage for the flow of qi energy. Result & Conclusion : Therefore, dysfunction of the tri-energizer is caused by abnormal evaporation and metabolism. Upper-energizer regulates cardiopulmonary function, middle-energizer regulates spleen and stomach functions, and lower-energizer regulates liver, kidneys, small and large intestines, and bladder functions. Such a functional specialization is possible by receiving the source of qi through the wall wrapping around the internal organs. Tri-energizer represents the exterior and interior relationship by acting as the membrane structure supporting the five visceral organs and six hollow organs and at the same time, as the pericardium surrounding the heart.

• International Journal of Oral Biology
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• 제44권4호
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• pp.125-129
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• 2019

Osteocalcin is the most abundant non-collagenous protein produced in bone. It has traditionally been regarded as a marker of bone turnover and is thought to act in the bone matrix to regulate mineralization. However, emerging knowledge regarding osteocalcin has expanded to include functions in energy metabolism, fertilization, and regulation of cognition. Fully carboxylated osteocalcin binds to hydroxyapatite, thereby modulating bone turnover, whereas undercarboxylated osteocalcin in the circulation binds to osteocalcin-sensing receptors and acts as a hormone that affects multiple physiological aspects. In this review, we summarize the current knowledge regarding the hormonal actions of osteocalcin in various organs and potential cellular downstream signaling pathway that may be involved.

• 대한의생명과학회지
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• 제26권3호
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• pp.217-225
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• 2020

Scuttle fly which moves abruptly after standing for a while and stop suddenly to rush off again, is a fly species in the Phoridae family. This species like rotten organic materials and it is known to proliferate even in the industrial materials including organic solvents. These characteristic behaviors of the scuttle fly seem to be related to muscular and nervous system or neurotransmitters. Thus, we focused at the neurotransmitter, corazonin (Crz) that is known to be related to resistance to stress and investigated the developmental process of the neurons in the scuttle fly. Corazonin is a neuropeptide being expressed in the central nervous system (CNS) and is known to control mainly physiological functions and behaviors. Its many functions that have been proposed are still in controversy. In this studies, we found that there are three groups of corazoninergic neurons in the larval CNS of the scuttle fly and these neurons undergo distinguishable changes through metamorphic process compared to different fly species. Larva has 3 pairs of Crz neurons at the dorsolateral area of the brain, 1 pair at the dorsomedial brain and 8 pairs at the ventral nerve cord.

• Toxicological Research
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• 제26권4호
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• pp.237-243
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• 2010

Endocrine disrupting chemicals (EDCs) have been shown to interfere with physiological systems, i.e., adversely affecting hormone balance (endocrine system), or disrupting normal function, in the female and male reproductive organs. Although endocrine disruption is a global concern for human health, its impact and significance and the screening strategy for detecting these synthetic or man-made chemicals are not clearly understood in female and male reproductive functions. Thus, in this review, we summarize the interference of environmental EDCs on reproductive development and function, and toxicological mechanism(s) of EDCs in in vitro and in vivo models of male and female reproductive system. In addition, this review highlights the effect of exposure to multiple EDCs on reproductive functions, and brings attention to their toxicological mechanism(s) through estrogen receptors.

• Asian Pacific Journal of Cancer Prevention
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• 제15권17호
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• pp.7001-7010
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• 2014

Isoflavones are phytoestrogens and natural plant compounds which are similar to 17-${\beta}$-estradiol in chemical structure. It is known that they can act as estrogen agonists or antagonists, depending on endocrine estrogenic levels, but actions of isoflavones are rather complex due to large number of variables such as chemical structures and mechanisms. Some hypotheses on biological mechanisms have not satisfactorily been confirmed to date and human epidemiological and experimental studies have been relatively limited. Nevertheless, isoflavones and isoflavone rich foods have become a focus onf interest due to positive health benefits on many diseases, especially prevention of hormone-related cancers, cardiovascular disease, osteoporosis, and adverse postmenopausal symptoms, and improvement of physiological condition such as maintaining cognitive function. This review provides an overview of chemistry, analytical techniques (focused on human biospecimens), functions including biological mechanisms, and effects of isoflavones, on the basis of the available meta-analysis and review articles and some original articles, on health and cancer.

• Journal of Plant Biotechnology
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• 제42권1호
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• pp.1-5
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• 2015

The biological roles of glycogen synthase kinase 3 (GSK3) proteins have long been extensively explored in eukaryotic organisms including fungi, animals and plants. This gene family has evolutionary well conserved kinase domain and shares similar phosphorylation properties to their substrate proteins. However, their specific biological roles are surprisingly distinct in different organisms. GSK3s play key role in key regulating the cytoskeleton and metabolic processes in animal systems, but plant GSKs are involved in quite different processes, such as flower development, brassinosteroid signaling, abiotic stresses, and organogenesis. In particular, recent studies have reported the critical multiple functions of BIN2 and its related paralogues plant GSK3s during organogenesis via connecting hormonal or developmental programs. In this review, we outline the recent understanding in the versatile functions related in physiological and biochemical relevance, which are mediated by plant GSK3s in various cellular signaling.