• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1997년도 추계학술대회
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• pp.385-387
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• 1997

Plasma luminescence spectroscopy was used or precise ablation of bone tissue during ultrashort pulse laser (USPL) micro-spinal surgery. Strong contrast of the luminescence spectra between bone marrow and spinal cord provided the real time feedback control so that only bone tissue can be selectively ablated while preserving the spinal cord.

• 대한임상검사과학회지
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• 제55권1호
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• pp.1-8
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• 2023

본 연구의 목적은 임상병리사의 전공과 직업에 정체성을 부여할 수 있는 용어를 찾는 것이다. 임상병리학이라는 용어는 병리학의 모든 분야, 즉 해부병리학, 화학병리학, 혈액학, 미생물학 및 이들의 모든 하위 전문 분야를 포함하도록 의도되었다. 불행히도, 많은 나라에서 임상병리학이라는 용어는 해부병리학을 배제하는 것으로 생각되었는데, 이는 이름이 영어 이외의 언어로 번역되었을 때 문제가 복잡해졌다. 임상병리학(미국, 영국)은 의학의 한 전문 분야이다. 유사한 용어로는 검사의학(독일, 폴란드), 의료/임상생물학(프랑스, 네덜란드) 또는 임상분석학(스페인)이 있다. 의료기술은 개인, 회사 및 기관과 같이 질문하는 사람에 따라 약간 다르게 정의된다. 물론, 질문하는 언어에 따라 다르다. 의료기술은 임상검사기술학, 지원보건과학, 의료기기, 의생명공학, 보건기술로도 번역될 수 있다. 지원보건과학에서는 '임상병리기술학·병리기술학'이라는 용어를 사용하지 않는다. '보건계열 임상병리학 및 임상병리사'의 명칭은 '의생명검험과학·의생명검험사' 또는 '임상검사분석학·임상검사분석사'로 대체할 수 있다. 본 연구에서는 학문과 자격의 명칭을 '의생명'이 결합된 용어로 '의료생물학·의료생물사'로 변경할 것을 제안해 본다.

• 한국광학회:학술대회논문집
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• 한국광학회 2001년도 하계학술발표회
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• pp.156-157
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• 2001

• Journal of Microbiology and Biotechnology
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• 제30권7호
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• pp.996-1004
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• 2020

Various genetically engineered microorganisms have been developed for the removal of heavy metal contaminants. Metal biosorption by whole-cell biosorbents can be enhanced by overproduction of metal-binding proteins/peptides in the cytoplasm or on the cell surface. However, few studies have compared the biosorption capacity of whole cells expressing intracellular or surface-displayed metal-adsorbing proteins. In this study, several constructs were prepared for expressing intracellular and surface-displayed Ochrobactrum tritici 5bvl1 ChrB in Escherichia coli BL21(DE3) cells. E. coli cells expressing surface-displayed ChrB removed more Cr(VI) from aqueous solutions than cells with cytoplasmic ChrB under the same conditions. However, intracellular ChrB was less susceptible to variation in extracellular conditions (pH and ionic strength), and more effectively removed Cr(VI) from industrial wastewater than the surface-displayed ChrB at low pH (<3). An adsorption-desorption experiment demonstrated that compared with intracellular accumulation, cell-surface adsorption is reversible, which allows easy desorption of the adsorbed metal ions and regeneration of the bioadsorbent. In addition, an intrinsic ChrB protein fluorescence assay suggested that pH and salinity may influence the Cr(VI) adsorption capacity of ChrB-expressing E. coli cells by modulating the ChrB protein conformation. Although the characteristics of ChrB may not be universal for all metal-binding proteins, our study provides new insights into different engineering strategies for whole-cell biosorbents for removing heavy metals from industrial effluents.

• 대한임상검사과학회지
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• 제51권1호
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• pp.1-14
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• 2019

우리나라, 일본, 미국의 임상병리사 명칭은 의료체계, 교육제도, 업무영역에 따라 차이가 있다. 전통적으로 medical technologist (별칭 clinical laboratory technologist, medical laboratory technologist, clinical laboratory scientist, medical laboratory scientist)와 동등하거나 유사한 직종은 histotechnologist, cytotechnologist, genetic technologist이다. Extracorporeal technologist, medical electrophysiology technologist, medical sonographer는 medical technologist를 포함한 다른 보건의료인도 자격을 취득할 수 있는 직종이다. 임상병리사의 업무영역은 임상병리기술학, 병리기술학, 임상유전기술학, 핵의학기술학, 임상생리기술학으로 분류하였다. 새로운 전문임상병리사 종별은 CLMJ, CMAJ, ASCP, IAC, ABRET, ARMDS 등의 자격인정제도를 참고하였다. 현재 전문임상병리사 종별은 전문과목학회의 협조 하에 기존의 8종으로 혈액학, 수혈학, 화학, 면역학, 미생물학, 조직학, 세포학, 핵의학분야가 있으며 앞으로 미세질량분석, 감염관리, Pathologists' Assistant, 유세포분석, HLA, 세포유전학, 분자유전학, 심폐생리학, 신경생리학(뇌파/근전도/수면다원 등), 심장초음파학, 신경초음파학(뇌혈류/경동맥), 기기품질관리사 등 업무영역별로 20종으로 세분화할 수 있다.

• 대한임상검사과학회지
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• 제50권4호
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• pp.525-534
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• 2018

본 연구의 목적은 임상병리 전공 유사 취업연계가 가능한 다양한 자격증을 조사하고 취득 방법과 활용 여부를 알아보고자 하였다. 전공 외 취업 연계 가능 자격은 산업보건지도사, 도핑검사관, 청각관리사. 수화통역사, 보건교육사, 손해사정사, 생명보험 언더라이터, 행정관리사, 병원행정사, 보험심사관리사, 병원코디네이터 등이 있다. 임상병리기술학 전공 유사 관련 진출자격 현황으로는 임상시험코디네이터, 임상시험 모니터요원, 해부조직사, 화학분석기사, 위험물산업기사, 생물공학기사, 생물안전관리자, 생명공학기술지도사, 의료기기품질책임자, 실험동물기술원, 동물간호복지사, 선박의료관리자가 있다. 따라서, 임상병리사들이 현재 보유하고 있는 다양한 자격 현황의 사회분석조사가 필요할 것이며, 임상병리사 출신으로 다른 분야에서 근무하고 있는 현황조사도 필요할 것이다. 향후, 임상병리사는 개인의 업무역량 강화의 노력을 통하여 업무적 범위를 확대시키고, 사례를 공유하여 영역 확대와 전문성을 강화해야 할 것이라고 생각한다.

• Asian Pacific Journal of Cancer Prevention
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• 제15권19호
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• pp.8051-8055
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• 2014

Background: A common genetic variant rs3757318, located in intron of C6orf97, was firstly identified to be associated with breast cancer (BC) risk by a genome-wide association (GWA) study. However, subsequent validation studies with different ethnicities have yielded conflicting results. Materials and Methods: We performed a meta-analysis to synthesize all available data for evaluating the precise effect of this variant on BC susceptibility. Results: A total of 8 articles containing 11 studies with 62,891 cases and 65,635 controls were included in this meta-analysis. When compared to the G allele, the rs3757318-A allele was significantly associated with BC risk with the pooled OR of 1.21 (95% CI=1.15 - 1.29, P<0.001) but with obvious between-study heterogeneity (P=0.040). Stratified analysis suggested that diversity of ethnicity along with control source may explain part of the heterogeneity. Similarly, significant associations were also identified in heterozygote, homozygote, dominant and recessive genetic models. Sensitivity and publication bias analyses indicated robust stability of our results. Conclusions: Our present meta-analysis demonstrated that the variant rs3757318 is associated with increased BC risk. Nevertheless, further studies are needed to clarify the underlying biological mechanisms.

• Asian Pacific Journal of Cancer Prevention
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• 제15권21호
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• pp.9241-9247
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• 2014

Background: Rs31489 in the cleft lip and palate transmembrane1-like gene (CLPTM1L) has been identified to be associated with lung cancer through genome-wide association studies (GWAS). However, some recent replication studies yielded inconclusive results. Thus, we undertook this study to investigate the precise effect of rs31489 on lung cancer susceptibility. Materials and Methods: A hospital-based case-control study in 1,673 Chinese subjects (611 individuals with lung cancer and 1,062 controls) and a meta-analysis among 32,199 subjects (16,364 cases and 15,835 controls) were performed in this study. Results: In our case-control study, rs31489 was inversely associated with lung cancer (AC versus CC: OR=0.68, 95%CI=0.52-0.88; additive model: OR=0.68, 95%CI=0.54-0.85; dominant model: OR=0.65, 95%CI =0.51-0.84). Stratification analysis by smoking status showed a significant association and strong genetic effect in non-smokers but not in smokers. Our meta-analysis further confirmed the association, although with significant heterogeneity contributed by study design and source of controls, as shown by stratified analysis. Sensitive and cumulative analyses both indicated robust stability of our results. In addition, there was no observable publication bias in our meta-analysis. Conclusions: Overall, the findings from our replication study and meta-analysis demonstrated that CLPTM1L gene rs31489 is significantly associated with lung cancer.

• Molecules and Cells
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• 제38권11호
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• pp.998-1006
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• 2015

Retinols are metabolized into retinoic acids by alcohol dehydrogenase (ADH) and retinaldehyde dehydrogenase (Raldh). However, their roles have yet to be clarified in hepatitis despite enriched retinols in hepatic stellate cells (HSCs). Therefore, we investigated the effects of retinols on Concanavalin A (Con A)-mediated hepatitis. Con A was injected into wild type (WT), Raldh1 knockout ($Raldh1^{-/-}$), $CCL2^{-/-}$ and $CCR2^{-/-}$ mice. For migration study of regulatory T cells (Tregs), we used in vivo and ex vivo adoptive transfer systems. Blockade of retinol metabolism in mice given 4-methylpyrazole, an inhibitor of ADH, and ablated Raldh1 gene manifested increased migration of Tregs, eventually protected against Con A-mediated hepatitis by decreasing interferon-${\gamma}$ in T cells. Moreover, interferon-${\gamma}$ treatment increased the expression of ADH3 and Raldh1, but it suppressed that of CCL2 and IL-6 in HSCs. However, the expression of CCL2 and IL-6 was inversely increased upon the pharmacologic or genetic ablation of ADH3 and Raldh1 in HSCs. Indeed, IL-6 treatment increased CCR2 expression of Tregs. In migration assay, ablated CCR2 in Tregs showed reduced migration to HSCs. In adoptive transfer of Tregs in vivo and ex vivo, Raldh1-deficient mice showed more increased migration of Tregs than WT mice. Furthermore, inhibited retinol metabolism increased survival rate (75%) compared with that of the controls (25%) in Con A-induced hepatitis. These results suggest that blockade of retinol metabolism protects against acute liver injury by increased Treg migration, and it may represent a novel therapeutic strategy to control T cell-mediated acute hepatitis.

• 대한치과기공학회지
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• 제35권4호
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• pp.395-403
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• 2013

Purpose: This article examined the affecting factors of a malocclusion status of a patient for orthodontic treatment, orthodontics medical expenses and oral health behavior on orthodontic satisfaction. Methods: This paper conducted a survey from the 15th of July to 30th of September 2012 for the patients who were under orthodontic treatment at three dental clinics where are in Deagu, and distributed a total of 210 questionnaires and analyzed 194 questionnaires, excepting for some questionnaires that were answered unfaithfully. Results: This study classified the related factors into a feeling of satisfaction with treatment and mental satisfaction for finding orthodontic satisfaction. There were the effect of the right tooth-brushing method, a periodic scaling and orthodontics medical expenses on a feeling of satisfaction with treatment, and power of explanation was 16.7%. Conclusion: There were the effect of a malocclusion status, matters that requires attention during orthodontic treatment, a periodic scaling during orthodontic treatment and orthodontics medical expenses on mental satisfaction, and power of explanation was 16.9%. Based on the result above, this paper concluded that preventive treatment and early treatment should be emphasized through developing a program for regular oral examination suited to each medical type, including the method for improving the medical treatment condition and care service for increasing orthodontic satisfaction, which the dental medical-service providers could consider the patients and secure trust.