• Title/Summary/Keyword: Body fluid identification

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Forensic Body Fluid Identification by Analysis of Multiple RNA Markers Using NanoString Technology

  • Park, Jong-Lyul;Park, Seong-Min;Kim, Jeong-Hwan;Lee, Han-Chul;Lee, Seung-Hwan;Woo, Kwang-Man;Kim, Seon-Young
    • Genomics & Informatics
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    • v.11 no.4
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    • pp.277-281
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    • 2013
  • RNA analysis has become a reliable method of body fluid identification for forensic use. Previously, we developed a combination of four multiplex quantitative PCR (qRT-PCR) probes to discriminate four different body fluids (blood, semen, saliva, and vaginal secretion). While those makers successfully identified most body fluid samples, there were some cases of false positive and negative identification. To improve the accuracy of the identification further, we tried to use multiple markers per body fluid and adopted the NanoString nCounter system instead of a multiplex qRT-PCR system. After measuring tens of RNA markers, we evaluated the accuracy of each marker for body fluid identification. For body fluids, such as blood and semen, each body fluid-specific marker was accurate enough for perfect identification. However, for saliva and vaginal secretion, no single marker was perfect. Thus, we designed a logistic regression model with multiple markers for saliva and vaginal secretion and achieved almost perfect identification. In conclusion, the NanoString nCounter is an efficient platform for measuring multiple RNA markers per body fluid and will be useful for forensic RNA analysis.

Body fluid identification in forensics

  • An, Ja-Hyun;Shin, Kyoung-Jin;Yang, Woo-Ick;Lee, Hwan-Young
    • BMB Reports
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    • v.45 no.10
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    • pp.545-553
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    • 2012
  • Determination of the type and origin of the body fluids found at a crime scene can give important insights into crime scene reconstruction by supporting a link between sample donors and actual criminal acts. For more than a century, numerous types of body fluid identification methods have been developed, such as chemical tests, immunological tests, protein catalytic activity tests, spectroscopic methods and microscopy. However, these conventional body fluid identification methods are mostly presumptive, and are carried out for only one body fluid at a time. Therefore, the use of a molecular genetics-based approach using RNA profiling or DNA methylation detection has been recently proposed to supplant conventional body fluid identification methods. Several RNA markers and tDMRs (tissue-specific differentially methylated regions) which are specific to forensically relevant body fluids have been identified, and their specificities and sensitivities have been tested using various samples. In this review, we provide an overview of the present knowledge and the most recent developments in forensic body fluid identification and discuss its possible practical application to forensic casework.

Forensic DNA methylation profiling from evidence material for investigative leads

  • Lee, Hwan Young;Lee, Soong Deok;Shin, Kyoung-Jin
    • BMB Reports
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    • v.49 no.7
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    • pp.359-369
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    • 2016
  • DNA methylation is emerging as an attractive marker providing investigative leads to solve crimes in forensic genetics. The identification of body fluids that utilizes tissue-specific DNA methylation can contribute to solving crimes by predicting activity related to the evidence material. The age estimation based on DNA methylation is expected to reduce the number of potential suspects, when the DNA profile from the evidence does not match with any known person, including those stored in the forensic database. Moreover, the variation in DNA implicates environmental exposure, such as cigarette smoking and alcohol consumption, thereby suggesting the possibility to be used as a marker for predicting the lifestyle of potential suspect. In this review, we describe recent advances in our understanding of DNA methylation variations and the utility of DNA methylation as a forensic marker for advanced investigative leads from evidence materials.

Discussing Sanghan(傷寒) and Onbyeong(溫病) through the Study of Baekhotang(白虎湯) (백호탕(白虎湯) 연구를 통한 상한(傷寒)과 온병(溫病)의 고찰)

  • Kim, Sang-Hyun;Baik, You-Sang;Jeong, Chang-Hyun;Jang, Woo-Chang
    • Journal of Korean Medical classics
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    • v.23 no.3
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    • pp.69-80
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    • 2010
  • The four taboos in using Baekhotang as explained by Odang(吳瑭), are identical to the standard symptoms of Severe Exterior Heat Syndrome[表熱重證]. There are similarities between Sanghan and Onbyeong in using Baekhotang(白虎湯). But there are significant differences between Sanghan and Onbyeong in explaining the pathogenesis of human body. In pattern identification by the Wi-Gi-Yoeng-Hyeol(衛氣營血) system, body fluid[津液] is the key feature, whereas in that of the Yuk-Gyeong(六經) system, Yanggi(陽氣) is the point. Therefore, we can understand that the standard symptoms of pattern identification are slightly different. However, that Sanghan and Onbyeong present different explanations does not mean that the disease itself strictly 'belong' to one category. They are different approaches, not explanations for two different subjects. Therefore, Sanghan and Onbyeong should be studied in line with this concept.

An Experimental Study on Lift Force Generation Resulting from Spanwise Flow in Flapping Wings

  • Hong, Young-Sun
    • International Journal of Aeronautical and Space Sciences
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    • v.7 no.2
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    • pp.86-103
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    • 2006
  • Using a combination of force transducer measurement to quantify net lift force, high frame rate camera to quantify and subtract inertial contributions, and Digital Particle Image Velocimetry (DPIV) to calculate aerodynamic contributions in the spanwise plane, the contribution of spanwise flow to the generation of lift force in wings undergoing a pure flapping motion in hover is shown as a function of flapping angle throughout the flapping cycle. These experiments were repeated at various flapping frequencies and for various wing planform sizes for flat plate and span wise cambered wings. Despite the previous identification of the importance of span wise fluid structures in the generation of lift force in flapping wings throughout the existing body of literature, the direct contribution of spanwise flow to lift force generated has not previously been quantified. Therefore, in the same manner as commonly applied to investigate the chordwise lift distribution across an airfoil in flapping wings, spanwise flow due to bulk flow and rotational fluid dynamic mechanisms will be investigated to validate the existence of a direct component of the lift force originating from the flapping motion in the spanwise plane instead.

Network-Based Protein Biomarker Discovery Platforms

  • Kim, Minhyung;Hwang, Daehee
    • Genomics & Informatics
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    • v.14 no.1
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    • pp.2-11
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    • 2016
  • The advances in mass spectrometry-based proteomics technologies have enabled the generation of global proteome data from tissue or body fluid samples collected from a broad spectrum of human diseases. Comparative proteomic analysis of global proteome data identifies and prioritizes the proteins showing altered abundances, called differentially expressed proteins (DEPs), in disease samples, compared to control samples. Protein biomarker candidates that can serve as indicators of disease states are then selected as key molecules among these proteins. Recently, it has been addressed that cellular pathways can provide better indications of disease states than individual molecules and also network analysis of the DEPs enables effective identification of cellular pathways altered in disease conditions and key molecules representing the altered cellular pathways. Accordingly, a number of network-based approaches to identify disease-related pathways and representative molecules of such pathways have been developed. In this review, we summarize analytical platforms for network-based protein biomarker discovery and key components in the platforms.

Pharmacognostical Study on the Panax ginseng C. A. Meyer (인삼의 생약학적 연구)

  • Do, Won-Im;Lee, Yu-Jin;Park, Jong-Hee
    • Korean Journal of Pharmacognosy
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    • v.35 no.1 s.136
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    • pp.45-51
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    • 2004
  • Panax ginseng C. A. Meyer (Araliaceae) is listed in Shen Nung Pentsao Ching(神農本草經) as the remedy for replenishing the primodial qi(氣), restoring pulse, treating collapse, tonifing the spleen and lag, promoting the production of body fluid to quench thirst, tranquilizing the mind, and improving the function of brain. The prescriptions of In Sam Tang(人參揚) are also recorded in many other Chinese medical books. The identification of the age of Panax ginseng is very important in commercial market as well as in research field. However, any reports about it have not been clearly established yet. To clarify the criterion, the morphological and anatomical characteristics of the roots of various age Panax ginseng cultivated in Korea were studied. The characteristics of cork layer, secretory canal, and vessel were shown to bε useful keys to confirm the age of Panax ginseng.

Categorization of Nursing Diagnosis and Nursing Interventions Used in Home Care (가정간호에서 사용된 간호진단과 간호중재 분류)

  • Suh, Mi-Hae;Hur, Hae-Kung
    • Journal of Korean Academic Society of Home Health Care Nursing
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    • v.5
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    • pp.47-60
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    • 1998
  • This study was done to identify basic information in classifying nursing diagnoses and nursing interventions needed for the further development of computerized nursing care plans. Data were collected by reviewing charts of 123 home care clients who had active disease, for whom at least one nursing diagnosis was on the chart, and who had been discharged. Data included demographics, medical orders, nursing diagnoses and nursing interventions. The results of the study, which found the most frequent medical diagnoses to be cancer (40.7%) and brain injury (26.8%), showed that 'Impaired Skin Integrity'(18.3%), 'Risk for Infection'(15.0%), 'Altered Nutrition, Less than Body Requirements'(13.8%), and 'Risk for Impaired Skin Integ rity'(9.9%) were the most frequent nursing diagnoses. 'Pressure Ulcer Care'(28.4%) was the most frequent intervention for 'Impaired Skin Integrity', 'Infection Protection'(16.0%) for 'Risk of Infection', 'Nutrition Counseling'(26.8%) for 'Altered Nutrition' and 'Positioning'(22.0%) for 'Risk for Skin Integrity Impairment', Comparison of interventions with the Nursing Intervention Classification(NIC) showed that the most frequent interventions were in the domain 'Basic Physiological' (33.94%), followed by 'Behavioral'(27.8%), and 'Complex Physiological' (22.6%). Interventions related to teaching family to give care at home could not be classified in the NIC scheme. Examination of the frequency of NIC interventions showed that for the domain 'Activity & Exercise Management', 75% of the interventions were used, but for seven domains, none were used. For the domain 'Immobility Management', 93% of the times that an intervention was used, it was 'Positioning', for the domain 'Tissue Perfusion Management', 'IV Therapy' (59.1%) and for the domain 'Elimination Management', 'Tube Care: Urinary'(54.0%). The nursing diagnoses 'Altered Urinary Elimination' and 'Im paired Physical Mobility' were both used with these clients, but neither 'Fluid Volume Deficit' nor 'Risk of Fluid Volume Deficit' were used rather 'IV Therapy' was an intervention for 'Altered Nutrition, Less than Body Requirements', A comparison of clients with cancer and those with brain injury showed that interventions for the nursing diagnosis 'Impaired Skin Integrity' were more frequent for the clients with cancer, interventions for 'Risk of Infection' were similar for the two groups but for clients with cancer there were more interventions for' Altered Nutrition'. Examination of the nursing diagnoses leading to the intervention 'Positioning' showed that for both groups, it was either 'Impaired Skin Integrity' or 'Risk for Skin Integrity Impairment'. This study identified a need for further refinement in the classification of nursing interventions to include those unique to home care and that for the purposes of computerization identification of the nursing activities to be included in each intervention needs to be done.

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Twenty-Eight-Day Repeated Inhalation Toxicity Study of Aluminum Oxide Nanoparticles in Male Sprague-Dawley Rats

  • Kim, Yong-Soon;Chung, Yong-Hyun;Seo, Dong-Seok;Choi, Hyun-Sung;Lim, Cheol-Hong
    • Toxicological Research
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    • v.34 no.4
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    • pp.343-354
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    • 2018
  • Aluminum oxide nanoparticles ($Al_2O_3$ NPs) are among the most widely used nanomaterials; however, relatively little information about their risk identification and assessment is available. In the present study, we aimed to investigate the potential toxicity of $Al_2O_3$ NPs following repeated inhalation exposure in male Sprague-Dawley rats. Rats were exposed to $Al_2O_3$ NPs for 28 days (5 days/week) at doses of 0, 0.2, 1, and $5mg/m^3$ using a nose-only inhalation system. During the experimental period, we evaluated the clinical signs, body weight change, hematological and serum biochemical parameters, necropsy findings, organ weight, and histopathology findings. Additionally, we analyzed the bronchoalveolar lavage fluid (BALF), including differential leukocyte counts, and aluminum contents in the major organs and blood. Aluminum contents were the highest in lung tissues and showed a dose-dependent relationship in the exposure group. Histopathology showed alveolar macrophage accumulation in the lungs of rats in the $5mg/m^3$ group during exposure and recovery. These changes tended to increase at the end of the recovery period. In the BALF analysis, total cell and neutrophil counts and lactate dehydrogenase, tumor necrosis factor-${\alpha}$, and interleukin-6 levels significantly increased in the 1 and $5mg/m^3$ groups during exposure. Under the present experimental conditions, we suggested that the no-observed-adverse-effect level of $Al_2O_3$ NPs in male rats was $1mg/m^3$, and the target organ was the lung.

A Case Study of Taeeumin Patient with Edema Treated with Gunyuljejo-tang (태음인 부종 환자의 건율제조탕 치험 1례)

  • Han, Suzy;Yu, Jun-Sang
    • Journal of Sasang Constitutional Medicine
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    • v.33 no.3
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    • pp.138-145
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    • 2021
  • Objectives Edema occurs in various disorders, such as heart failure, nephrotic syndrome, renal failure, liver cirrhosis, and cancer. The excessive accumulation of interstitial fluid in limb tissue will often manifest with ankle and knee swelling and lowers patient's quality of life. But the conventional treatment includes restricting dietary sodium and using diuretics. The purpose of this study is about significant improvement of a patient with edema who had suffered from dependent gait accompanied by mild pain, after treatment by herbal medicine based on SCM(Sasang constitutional medicine). Methods The pattern identification of the patient was diagnosed with a superficial disease of Taeeumin. So after the admission, Gunyuljejo-tang was used, almost two times per day during 2 weeks. Also, we applied acupuncture routinely every day and western medicine as needed. We measured the circumferences of Lt. thigh and followed up the bioelectrical impedance analysis and checked the appearance of lower limb. Results and Conclusions The therapy was effective, and the circumferences, which was 59.69cm at onset time, decreased to 52.07cm almost same to the healthy side of her thigh. There was no more edematous sign on the body, either. This case showed that management of Taeeumin's healthy energy(呼散之氣, the energy of exhalation) could be effective in treating edema.