• Title/Summary/Keyword: Medical laboratory science

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A Case of Glutaric Aciduria Type I with Macrocephaly (Glutaric Aciduria Type I 1례)

  • Shin, Woo Jong;Moon, Yeo Ok;Yoon, Hye Ran;Dong, Eun Sil;Ahn, Young Min
    • Clinical and Experimental Pediatrics
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    • v.46 no.3
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    • pp.295-301
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    • 2003
  • Glutaric aciduria type 1(GA1) is an autosomal recessive disorder of the lysine, hydroxylysine and tryptophan metabolism caused by the deficiency of mitochondrial glutaryl-CoA dehydrogenase. This disease is characterized by macrocephaly at birth or shortly after birth and various neurologic symptoms. Between the first weeks and the 4-5th year of life, intercurrent illness such as viral infections, gastroenteritis, or even routine immunizations can trigger acute encephalopathy, causing injury to caudate nucleus and putamen. But intellectual functions are well preserved until late in the disease course. We report a one-month-old male infant with macrocephaly and hypotonia. In brain MRI, there was frontotemporal atrophy(widening of sylvian cistern). In metabolic investigation, there were high glutarylcarnitine level in tandem mass spectrometry and high glutarate in urine organic acid analysis, GA1 was confirmed by absent glutaryl-CoA dehydrogenase activity in fibroblast culture. He was managed with lysine free milk and carnitine and riboflavin. He developed well without a metabolic crisis. If there is macrocephaly in an infant with neuroradiologic sign of frontotemporal atrophy, GA1 should have a high priority in the differential diagnosis. Because current therapy can prevent brain degeneration in more than 90% of affected infants who are treated prospectively, recognition of this disorder before the brain has been injured is essential for treatment.

Effects of Myofascial Release on Nerve Conduction Studies and Pain Scale in Middle-Aged Women (중년여성에서 근막이완요법이 신경전도와 통증에 미치는 영향)

  • Yon, Jung-Min;Lee, Hyun-Kyung;Lee, Og-Kyoung
    • Journal of Digital Convergence
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    • v.12 no.6
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    • pp.425-432
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    • 2014
  • The purpose of this study was to examine the effect of myofascical release (MR) on the degree of pain and nerve conduction velocity (NCV) in middle-aged women. Participants were 28 middle-aged women and MR carried out three times (1, 3, 5 day) at intervals of two times. We did survey about changes of pain before the MR and how they changed after the MR. Also measured pressure pain threshold (PPT) and visual analogue scale (VAS) by using the algometer at trapezius muscle. In median nerve, we did motor nerve conduction velocity (MNCV) test and sensory nerve conduction velocity (SNCV) test for measuring incubation period, amplitude and nerve conduction. The most painful time was 18~21 and the most painful part was shoulder. The pain scale, PPT and VAS after the MR had significantly decreased than before the MR. The latency was significantly decreased and the amplitude was significantly increased in the MNCV and the latency was significantly decreased in the SNCV after the MR. Also it was effective in ameliorating pain scale and latency of NCV. Consequently, the MR can be effective in prevent pain scale caused by fatigue in middle-aged women as replacement therapy.

A Case Analysis of Home Health Care for Cesarean Postpartum Women and Their Newborns (제왕절개분만 산욕부와 신생아의 가정간호 사례분석)

  • 김혜숙;최연순;전은미
    • Journal of Korean Academy of Nursing
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    • v.24 no.4
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    • pp.696-705
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    • 1994
  • This study was done to provide a basis for home health care management for women following Cesarean delivery. Furthermore it was initiated as an possible application of home health care in the future. In this study, client selection criteria was developed by the researcher and assessment tools for home health care, recording system and problem oriented recording system were revised from Jun's(1993) methods. The selection criteria tool for home health care for women who had a Cesarean delivery was structured and consisted of five areas : physical status, functional status, psychological-emetional status, educational needs status and environmental status. The structured assessment tool consisted of general items, obstetric history, past medical history, methods of feeding, medications taken before ad-mission, laboratory results, discharge instructions, discharge medications, family tree, economic status, environmental status, a map, health assessment of women and their newborns. The visit note consisted of the date : nursing problems : nursing process including initial assessment : nursing goals : visit plan : health status of the postpartum women and their newborn : nursing diagnoses : nursing implementation evaluation : summary : next visit plan and revision. The problem oriented recording system consisted of the date, problem numbers, nursing diagnoses, problem appearance date, problem resolution date. The results of the research are as follows : The seven cases having had a Cesarean delivery were discharged on an average on the 5th day after the Cesarean birth. The total number of home visits was 13. According to Cordon's functional health patterns the total possible nursing diagnoses was 34 diagnoses for the methers and their newborns. Among the 34 diagnoses, there were 13 diagnoses in the health perception /management pattern, 7 in the psychosocial health perception / management pattern, 8 in the psychosocial self-perception, 2 in the nutrition / metabolism pattern of physical function, 2 in the knowledge deficit of newborn management, anxiety related to newborn management, knowledge deficit related to disease process of new-born, anxiety related to disease process of newborn anxiety related to prognosis of baby's condition, knowledge deficit related to newborn jaundice each appeared once. The changes in the number of nursing diagnoses was related to not the number of visits but to the number of nursing diagnoses decreasing. The con-tent of the home health care was categorized ac-cording to assessment, direct care, counseling, education, family care. The recommendation based on the results of this research are Home health care nurses for Cesarean postpartum women and their neonates requires comprehensive knowledge of pregnancy, delivery, and the postpartum period and of the neonate so that they can provide appropriate care and holistic views. Most of cases terminated after the second visit, this outcome may be related to the subjects being discharged on the 5th day after delivery. Therefore, study done with earlier discharge after delivery may have different outcome. It is very hard to assess psychological aspects that need follow-up and to develop communication channels.

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A Study on Factors Related to Stroke Patients in Taegu Area (한방병원 내원 뇌졸중 환자에 대한 역학적 조사)

  • 김웅각
    • Biomedical Science Letters
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    • v.4 no.2
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    • pp.153-164
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    • 1998
  • A study on factors related to stroke patients in three oriental medical hospitals in Taegu area was conducted from October 1997 through December 31, 1997. One hundred and sixty three hospitalized and ambulatory patients were interviewed by traind interviewers according to the questionnaires prepared in advance. The results are summarized as follows; male and female ratio of the subjects was 1 to 1.36, and of the subjects 36.8% were 60's of the age and 25.2% were 50's and 19.6% were 70's. 74.7% of the patients were married and 41.5% of them had only six year education. 20% of the subjects became stroke victims while they were engaged in physical activities, 16.2% while in sleep, 15.5% because of psycological shock, and 7.2% while drinking. Of 157 precisely diagnosed cases, cerebral infarction was the most frequent cause (47.7%), cerebral hemorrhage was the second (38.2%), and subarachnoid hemorrhage (5.1%) respectly, Of 161 cases, 64% were normal in body weight, 26.7% were obese and 9.3% were light. Of 163 cases, 65.6% of them did not drink alcohol. Of 162 cases, 63% did not smoke cigarettes.

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Bactericidal Efficacy of a Fumigation Disinfectant Containing Paraformaldehyde Against Salmonella Typhimurium

  • Cha, Chun-Nam;Son, Song-Ee;Yoo, Chang-Yeul;Park, Eun-Kee;Jung, Ji-Youn;Kim, Suk;Lee, Hu-Jang
    • Journal of Food Hygiene and Safety
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    • v.31 no.3
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    • pp.216-221
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    • 2016
  • This study was performed to evaluate the bactericidal efficacy of a fumigation disinfectant containing 35% paraformaldehyde against Salmonella Typhimurium (S. Typhimurium). In this study, the efficacy test of a fumigant against S. Typhimurium was carried out according to French standard NF T 72-281. The S. Typhimurium working culture suspension number (N value), all bacteria numbers on the carriers exposed to the fumigant (n1, n2, and n3), the number of bacterial suspensions by the pour plate method (N1), the number of bacterial suspensions by the filter membrane method (N2), and the mean number of bacteria recovered on the control carriers (T value), were obtained from the preliminary test. In addition, the reduction number of S. Typhimurium exposed to the fumigant (d value) was calculated using the T value, the mean number of bacteria in the recovery solution (n'1) and the mean number of bacteria on carriers plated in agar (n'2). The N value was $5.5{\times}10^8$ colony forming units (CFU)/mL, and n1, n2, and n3 were higher than 0.5N1, 0.5N2 and 0.5N1, respectively. Additionally, the T value was $3.5{\times}10^6CFU/carrier$. In terms of the bactericidal effect of the fumigant, the d value was 5.25. According to the French standard for fumigants, the d value for an effective bactericidal fumigant should be greater than 5. The results indicated that the fumigant containing 35% paraformaldehyde had an efficient bactericidal activity against S. Typhimurium, and, therefore, can be used to disinfect food materials and kitchen appliances contaminated with foodborne bacteria.

Acute Oral Toxicity and Skin Irritation Studies on Lamia-Kill$^{(R)}$ Composed of Benzalkonium Chloride and Citric Acid (염화벤지코늄과 구연산을 주성분으로 하는 살균 소독제 라미아-킬에 대한 급성경구독성 및 피부자극성 시험에 관한 연구)

  • Cha, Chun-Nam;Lee, Yeo-Eun;Son, Song-Ee;Yoo, Chang-Yeol;Park, Eun-Kee;Choi, Hyun-Ju;Kim, Suk;Lee, Hu-Jang
    • Journal of Food Hygiene and Safety
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    • v.26 no.4
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    • pp.377-382
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    • 2011
  • This test was performed to evaluate the acute oral toxicity and skin irritation of Lamia-Kill$^{(R)}$, disinfectant, containing 20% benzalkonium chloride and 10% citric acid. In acute oral toxicity, Lamia-Kill$^{(R)}$ was orally administered at dose levels of 2,000, 1,000, 500, 250 and 0 mg/kg body weight. After single oral administration to both sexes of SD rats, the rats were observed for 14 days. In primary skin irritation test, New Zealand white rabbits were dermally treated with Lamia-Kill$^{(R)}$ for 24 hr and observed for 3 days. All rats treated with Lamia-Kill$^{(R)}$ were induced no toxic signs in mortalities, clinical findings, body weights and gross findings. Also, the disinfectant did not induce any adverse reactions such as erythema and edema on intact skin sites for the most part rabbits, but on abraded skin sites, some rabbits showed very slight erythema on 24 hr after topical application. With the results of this study, Lamia-Kill$^{(R)}$ have no effect on acute toxicity and side effect in SD rats and was classified as a practically non-irritating material based on the score 0.50 of primary irritation index.

[ $P2X_2$ ] Receptor Activation Potentiates PC12 Cell Differentiation Induced by ACAP in Acidic Environments

  • Lee, Myung-Hoon;Nam, Jin-Sik;Ryu, Hye-Myung;Yoo, Min;Lee, Moon-Hee
    • Biomedical Science Letters
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    • v.13 no.3
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    • pp.197-206
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    • 2007
  • P2X receptors are membrane-bound ion channels that conduct $Na^+,\;K^+$, and $Ca^{2+}$ in response to ATP and its analogs. There are seven subunits identified so far ($P2X_1-P2X_7$). $P2X_2$ receptors are known to be expressed in a wide range of organs including brains and adrenal grands. PC12 cells are originated from adrenal grand and differentiated by nerve growth factor or pituitary adenylate cyclase activating poly peptide (PACAP). Previous studies indicate that $P2X_2$ receptor activation in PC12 cells couples to $Ca^{2+}-dependent$ release of catecholamine and ATP. It is known that acidic pH potentiates ATP currents at $P2X_2$ receptors. This leads to a hypothesis that $P2X_2$ receptors may play an important role in PC12 cell differentiation, one of the characteristics of which is neurite outgrowth, induced by the hormones under lower pH. In the present study, we isolated several clones which potentiate neurite outgrowth by PACAP in acidic pH (6.8), but not in alkaline pH (7.6). RT-PCR and electrophysiology data indicate that these clones express only functional $P2X_2$ receptors in the absence or presence of PACAP for 3 days. Potentiation of neurite outgrowth resulted from PACAP (100 nM) in acidic pH is inhibited by the two P2X receptor antagonists, suramin and PPADS ($100\;{\mu}M)$ each), and exogenous exprerssion of ATP-binding mutant $P2X_2$ receptor subunit ($P2X_2[K69A]$). However, acid sensing ion channels (ASICs) are not involved in PACAP-induced neurite outgrowth potentiation in lower pH since treatments of an inhibitor of ASICs, amyloride ($10\;{\mu}M$), did not give any effects to neurite extension. The vesicular proton pump ($H^+-ATPase$) inhibitor, bafilomycin (100 nM), reduced neurite extension indicating that ATP release resulted from $P2X_2$ receptor activation in PC12 cells is needed for neurite outgrowth. These were confirmed by activation of mitogen activated protein kinases, such as ERKs and p38. These results suggest roles of ATP and $P2X_2$ receptors in hormone-induced cell differentiation or neuronal synaptogenesis in local acidic environments.

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Anti-Obesity Activity, Anti-Cancer Activity and Single Oral Dose Toxicity of Inonotus xeranticus Extracts (기와층버섯 추출물의 항비만활성, 항암활성 및 단회경구독성시험)

  • Kang, Eun-Hee;Lee, In-Kyoung;Hwang, Mi-Hyun;Choi, Jae-Young;Chang, Zhi-Qiang;Rhee, Man-Hee;Yun, Bong-Sik;Jiang, Cheng-Zhe;Kim, Kil-Soo;Park, Seung-Chun
    • Toxicological Research
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    • v.23 no.3
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    • pp.253-261
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    • 2007
  • In this study, we investigated the in vitro anti-obesity, anti-cancer activity and single oral dose toxicity of Inonotus xeranticus extracted by methanol (INXM) or ethyl acetate (INXE). In order to investigate anti-obestity effect of Inonotus xeranticus extracts, the 3T3-L1 cells were treated with these extracts at various concentrations(1, 10, 100 and $300{\mu}g/ml$). It was observed that 3T3-L1 cells treated with $100{\mu}g/ml$ of Inonotus obliquus ethyl acetate extract (INOE), INXM and INXE, in the absence of differentiation cocktail (0.5mM isobutylmethylxanthine (IBMX) $1{\mu}M$ dexamethasone, $1{\mu}M$ insulin), differentiated at a rate of 78.5, 80.9, and 76.4% respectively. Differentiation rates of 86.6% and 83.4% were observed in 3T3-L1 cells which were treated with differentiation cocktail at $100{\mu}g/ml$ of INXM and INXE, respectively. The anti-cancer effect of Inonotus xeranticus extracts was investigated using a method of sulforhodamine B in sarcoma 180 cell line. The cells were treated with these extracts (1, 10, 100 and $300{\mu}g/ml$) for 48 hours. The growth of cells which were treated with $300{\mu}g/ml$ of INXM was inhibited by 80.1%. The growth of sarcoma 180 cells which were treated with 100 and $300{\mu}g/ml$ of INXE was inhibited by 74.7% and 64.5%, respectively. In single oral dose toxicity study, no differences were observed between control and treated groups in clinical signs, body weight gains, and feed and water consumptions. The results indicated that Inonotus xeranticus extracts did not show any toxic effects at 2,000mg/kg in mice, and the $LD_{50}$ of these extracts was found to be higher than 2,000 mg/kg in this experiment. From the above results, Inonotus xeranticus methanol and ethyl acetate extracts might have useful clinical applications in the management of cancer and obesity and may also be useful as a medicinal food.

Seroprevalence of Plasmodium vivax in the Republic of Korea (2003-2005) using Indirect Fluorescent Antibody Test

  • Kim, Tong-Soo;Kang, Yoon-Joong;Lee, Won-Ja;Na, Byoung-Kuk;Moon, Sung-Ung;Cha, Seok Ho;Lee, Sung-Keun;Park, Yun-Kyu;Pak, Jhang-Ho;Cho, Pyo Yun;Sohn, Youngjoo;Lee, Hyeong-Woo
    • Parasites, Hosts and Diseases
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    • v.52 no.1
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    • pp.1-7
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    • 2014
  • Plasmodium vivax reemerged in the Republic of Korea (ROK) in 1993, and is likely to continue to affect public health. The purpose of this study was to measure levels of anti-P. vivax antibodies using indirect fluorescent antibody test (IFAT) in border areas of ROK, to determine the seroprevalence of malaria (2003-2005) and to plan effective control strategies. Blood samples of the inhabitants in Gimpo-si, Paju-si, and Yeoncheon-gun (Gyeonggi-do), and Cheorwon-gun (Gangwon-do) were collected and kept in Korea Centers for Disease Control and Prevention (KCDC). Out of a total of 1,774 serum samples tested, the overall seropositivity was 0.94% (n=17). The seropositivity was the highest in Paju-si (1.9%, 7/372), followed by Gimpo-si (1.4%, 6/425), Yeoncheon-gun (0.67%, 3/451), and Cheorwon-gun (0.19%, 1/526). The annual parasite incidence (API) in these areas gradually decreased from 2003 to 2005 (1.69, 1.09, and 0.80 in 2003, 2004, and 2005, respectively). The highest API was found in Yeoncheon-gun, followed by Cheorwon-gun, Paju-si, and Gimpo-si. The API ranking in these areas did not change over the 3 years. The seropositivity of Gimpo-si showed a strong linear relationship with the API of 2005 (r=0.9983, P=0.036). Seropositivity data obtained using IFAT may be useful for understanding malaria prevalence of relevant years, predicting future transmission of malaria, and for establishing and evaluating malaria control programs in affected areas.

Single Nucleotide Polymorphisms of Cytokine Genes are Associated with Fibrosis of the Intrahepatic Bile Duct Wall in Human Clonorchiasis

  • Chung, Byung-Suk;Lee, Jeong-Keun;Choi, Min-Ho;Park, Myoung-Hee;Choi, Dong-Il;Hong, Sung-Tae
    • Parasites, Hosts and Diseases
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    • v.47 no.2
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    • pp.145-151
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    • 2009
  • This study examined the association of cytokine gene polymorph isms with intrahepatic bile duct wall fibrosis in human clonorchiasis. A total of 240 residents in Heilongjiang, China underwent ultrasonography, blood sampling, and stool examination. Single nucleotide polymorphism (SNP) sites for $IFN-{\gamma}$ (+874 T/A), IL-10 (-1,082 G/A, -819 C/T, -592 C/A), $TNF-{\alpha}$ (-308 G/A), and $TGF-{\beta}1$ (codon 10 T/C, codon 25 G/C) genes were observed with the TaqMan allelic discrimination assay. No significant correlation was observed between individual cytokine gene polymorphisms and intrahepatic duct dilatation (IHDD). Among individuals with clonorchiasis of moderate intensity, the incidence of IHDD was high in those with $IFN-{\gamma}$ intermediate-producing genotype, +874AT (80.0%, P=0.177), and in those with $TNF-{\alpha}$ low-producing genotype, -308GG (63.0%, P=0.148). According to the combination of $IFN-{\gamma}$ and $TNF-{\alpha}$ genotypes, the risks for IHDD could be stratified into high (intermediate-producing $IFN-{\gamma}$ and low producing $TNF-{\alpha}$), moderate, and low (low-producing $IFN-{\gamma}$ and high producing $TNF-{\alpha}$) risk groups. The incidence of IHDD was significantly different among these groups (P=0.022): 88.9% (odds ratio, OR=24.0) in high, 56.5% (OR=3.9) in moderate, and 25.0% (OR=1) in low risk groups. SNP of $IFN-{\gamma}$ and $TNF-{\alpha}$ genes may contribute to the modulation of fibrosis in the intrahepatic bile duct wall in clonorchiasis patients.