• Title/Summary/Keyword: s-LDH

Search Result 386, Processing Time 0.03 seconds

Prevalence Rates of Major Chronic Adult Diseases among Korean Employees (한국 직장성인의 만성 주요 질환 유병률과 행태에 관한 연구)

  • Lee, Gyu-Jang;Kim, Soon-Ki;Kim, Jeong-Hwa;Cho, Kyung-Jin
    • Korean Journal of Clinical Laboratory Science
    • /
    • v.41 no.4
    • /
    • pp.196-207
    • /
    • 2009
  • For the estimation of prevalence state of major chronic adult disease and their relationships with drinking and smoking habits in the Korean employees, we analyzed a medical check-up data of 155,799 subjects that was accumulated during the year of 2008. In age and sex distribution of the sample, male subjects were 106,229 and female 51,827 showing the ratio of 2:1 and the majorities were 30s and 40s covering 70.7% of the total. The prevalence rates of major chronic diseases were obesity 29.8% (male 38.3%, female 12.3%), hypertension 4.1%, HBV carrier inactive 3.3%, diabetes mellitus 2.9%, hypothyroidism 1.7% (male 1.3%, female 2.4%), hyperlipidemia 1.1%, hyperthyroidism 1.4% (male 1.1%, female 2.1%), osteoporosis 1.4% (male 1.4%, female 1.4%), anemia 0.9% (male 0.3%, female 2.0%) and renal disease 0.9%. The frequency of and volume of drinking in male group were 4.6 times and 7.5 times higher than female group respectively. The 33.8% of the workers were smoking currently. In the serological tests, all the items such as AST, ALT, ${\gamma}-GTP$, LDH for liver function, Cholesterol, TG, uric acid for hyperlipidemia and BP systolic, Fasting blood sugar, BMI for metabolic syndrome were significantly higher in the more drinking and more smoking groups than other groups (p<0.001). The higher prevalence rates in male group in the liver disease seems to be strongly related with the drinking and smoking habits in male employees. We suggest that employees should rather relying on leisure or hobbies than drinking and smoking for the stress relief.

  • PDF

The Effect of Dehydroepiandrosterone on Isoproterenol-induced Cardiomyopathy in Rats

  • Jeong, Ji-Hoon;Kim, Chan-Woong;Yim, Sung-Hyuk;Shin, Yong-Kyoo;Park, Kyung-Wha;Park, Eon-Sub
    • The Korean Journal of Physiology and Pharmacology
    • /
    • v.10 no.2
    • /
    • pp.79-83
    • /
    • 2006
  • We evaluated therapeutic and preventive properties of dehydroepiandrosterone (DHEA), a weak androgenic steroid, against isoproterenol-induced cardiomyopathy. The cardiomyopathy was induced by daily i.p. administration of isoproterenol to rats for five days. One group of rats were given with daily s.c. for 5 days during isoproterenol and the other group with daily s.c. DHEA for total 10 days, including 5 days before and during isoproterenol. The animals were killed after each treatment, and cardiac muscle failure was evaluated using histopathologic examination and biochemical indices. DHEA was found to reduce the damaged area and inhibit the elevation in the serum levels of glutamic oxaloacetic transaminase (SGOT), lactate dehydrogenase (LDH), skeletal muscle creatine kinase (CK) and heart creatine kinase (CK-MB) induced by isoproterenol. We also assayed widely used oxidative stress parameters, including thiobarbituric acid reactive substances (TBARS), superoxide dismutase (SOD), catalase and glutathion peroxidase (GPx). DHEA decreased the escalated level of TBARS and enhanced the anti oxidant defense reaction with an increase in Mn-SOD and Cu/Zn-SOD. On the other hand, the treatment with DHEA did not affect catalase and GPx activity. The present study indicates that DHEA has a therapeutic and preventive effect against isoproterenol-induced cardiomyopathy and its effects may depend largely on the increase in SOD activity.

Antioxidant Activity and Protective Effects of 9-hydroxy-$\alpha$-tocopherone from Viola mandshurica Extracts (제비꽃(Viola mandshurica) 추출물로부터 분리된 9-hydroxy-$\alpha$-tocopherone의 항산화 활성 및 세포 보호효과)

  • Lee, Mi-Ra;Hwang, Ji-Hwan;Park, Jae-Hee;Kim, Hyun-Jung;Park, Eun-Ju;Park, Hae-Ryong
    • Korean Journal of Pharmacognosy
    • /
    • v.41 no.3
    • /
    • pp.166-173
    • /
    • 2010
  • Oxidative stress to proteins, lipids, or DNA is higher in human autopsy tissue and in rodent models of a number of neurodegenerative conditions, including Alzheimer's and Parkinson's disease. On the basis of this information, we established a screening system using N18-RE-105 cells to identify therapeutic agents that can protect cells from glutamate toxicity. During the course of our screening program, we recently isolated the active compound 9-hydroxy-$\alpha$-tocopherone ($\alpha$-TP), which prevents glutamate-induced cell death, from Viola mandshurica. The chemical structure of $\alpha$-TP was identified using spectroscopic methods and by comparison with literature values. Antioxidant activity and protective effects of $\alpha$-TP were evaluated by DPPH radical-scavenging assay, morphological assay, MTT reduction assay, and lactate dehydrogenase (LDH) release assay. These results suggest that $\alpha$-TP could be a new potential chemotherapeutic agent against neuronal diseases.

7,8,4'-Trihydroxyisoflavone, a Metabolized Product of Daidzein, Attenuates 6-Hydroxydopamine-Induced Neurotoxicity in SH-SY5Y Cells

  • Ko, Yong-Hyun;Kim, Seon-Kyung;Kwon, Seung-Hwan;Seo, Jee-Yeon;Lee, Bo-Ram;Kim, Young-Jung;Hur, Kwang-Hyun;Kim, Sun Yeou;Lee, Seok-Yong;Jang, Choon-Gon
    • Biomolecules & Therapeutics
    • /
    • v.27 no.4
    • /
    • pp.363-372
    • /
    • 2019
  • Daidzein isolated from soybean (Glycine max) has been widely studied for its antioxidant and anti-inflammatory activities. However, the protective effects of 7,8,4'-trihydroxyisoflavone (THIF), a major metabolite of daidzein, on 6-hydroxydopamine (OHDA)-induced neurotoxicity are not well understood. In the current study, 7,8,4'-THIF significantly inhibited neuronal cell death and lactate dehydrogenase (LDH) release induced by 6-OHDA in SH-SY5Y cells, which were used as an in vitro model of Parkinson's disease (PD). Moreover, pretreatment with 7,8,4'-THIF significantly increased the levels of superoxide dismutase (SOD), catalase (CAT), and glutathione (GSH) and decreased malondialdehyde (MDA) activity in 6-OHDA-induced SH-SY5Y cells. In addition, 7,8,4'-THIF significantly recovered 6-OHDA-induced cleaved caspase-3, cleaved caspase-9, cleaved poly-ADP-ribose polymerase (PARP), increased Bax, and decreased Bcl-2 levels. Additionally, 7,8,4'-THIF significantly restored the expression levels of phosphorylated c-Jun N-terminal kinase (JNK), p38 mitogen-activated protein kinase (MAPK), extracellular signal-regulated kinase 1/2 (ERK 1/2), phosphatidylinositol 3-kinases (PI3K)/Akt, and glycogen synthase kinase-3 beta ($GSK-3{\beta}$) in 6-OHDA-induced SH-SY5Y cells. Further, 7,8,4'-THIF significantly increased the reduced tyrosine hydroxylase (TH) level induced by 6-OHDA in SH-SY5Y cells. Collectively, these results suggest that 7,8,4'-THIF protects against 6-OHDA-induced neuronal cell death in cellular PD models. Also, these effects are mediated partly by inhibiting activation of the MAPK and PI3K/Akt/$GSK-3{\beta}$ pathways.

Analysis of Restraint Stress-induced Behavioral Alteration and Liver Injury in Mice (구속 스트레스로 인한 동물모델의 행동학적 변화와 간 손상)

  • Ye Jin Yang;Young Zoo You;Min Jung Kim;Jae Dong Son;Tae Woo Oh;Kwang Il Park
    • Herbal Formula Science
    • /
    • v.32 no.3
    • /
    • pp.263-275
    • /
    • 2024
  • Background : Recent studies have shown that stress fundamentally influences the functional modulation of organ and stress-related disease causes high morbidity and mortality rates. Objective : The present research investigated the effect of restraint stress on psychological and physiological responses. Results : Body weight and food intake were changed in stress group. Body weight has continuously decreased, and food intake has been slightly altered. As a result of measuring each tissue's weight, the liver and kidney's weight loss was greater than that of other organs. The lipid profile of stressed animals showed significant increases in cholesterol (TC), triglyceride (TG), low-density lipoprotein (LDL), and high-density lipoprotein (HDL) levels compared to control. As hepatic marker enzymes, serum glutamic pyruvic transaminase (GPT; alanine aminotransferase), glutamic oxalacetic transaminase (GOT; aspartate aminotransferase), and lactic dehydrogenase (LDH) were increased in the stress group. However, levels of serum cortisol and corticosterone did not affect. Results of the behavioral tests show that the stress group has increased activity, sluggish movements, and anxiety in the central part compared with the control group through the open field test. In the forced swim test, the stress group models had a longer duration of slowing movement, and its rate also increased. Also, in immunoblotting, stress increased the inflammatory factors Inducible Nitric Oxide Synthase (iNOS), cyclooxygenase-2 (COX-2) and activated the mitogen-activated protein kinase (MAPK) pathway. Conclusions : We observed that mouse model were affected behavioral response and liver injury when exposed to restraint stress, indicating the importance of the restraint stress in the development of psychological and physiological processes.

Study on the Anti-cancer, Anti-metastasis and Immune response improvement Effects of Aqua-acupuncture with Rubi Fructus infusion solution (항암(抗癌) 및 면역효과(免疫效果)에 복분자약침(覆盆子藥鍼)이 미치는 영향(影響))

  • Lee, Seon-Hee;Lee, Byung-Ryul
    • Journal of Acupuncture Research
    • /
    • v.17 no.1
    • /
    • pp.189-219
    • /
    • 2000
  • To study the effects of anti-cancer, anti-metastasis and immune response improvement effects of aqua-acupuncture with Rubi Fructus infusion solution, we used Rubi Fructus infusion solution(taken by water-alcohol method) put into Chung-wan (CV12) and Chok-Samni(ST36) of BALB/c or C57BL/6 which are corresponding to humanbody. We observed the cytotoxicity, the effect on the expression of MMP-9 gene, the ability to control cancer cell proliferation, change of body weight, surviving number, median surviving time, increase of life span, changes in amount of leukocyte, erythrocyte, platelet, total protein, creatinine, glucose and LDH, weight of spleen, number of pulmonary colony, histological analysis on tissue metastasis of lung and liver, splenic cell proliferation, the expression of cytokine gene, the number of $CD4^+$, $CD8^+$, $CD19^+$ and NK cell, and concluded like this. The results were obtained as follows : 1. Effects of Anti-cancer 1) The cytotoxicity about B16-F10 cell line of $2^0$, $2^{-1}$, $2^{-2}$, $2^{-3}$, $2^{-5}$, $2^{-6}$, $2^{-7}$, $2^{-8}$ diluent groups in Rubi Fructus infusion solution treatment was inhibited significantly, compared with control group. 2) The cytotoxicity about HT1080 cell line of $2^0{\sim}2^{-8}$ diluent groups in Rubi Fructus infusion solution treatment was inhibited significantly, compared with control group. 3) The effect on expression of MMP-9 gene was inhibited significantly in all the sample groups, compared with control group. 4) The effect on the control-ability on the cancer cell proliferation showed cytotoxicity significantly in $2^0$, $2^{-1}$, $2^{-2}$, $2^{-3}$, $2^{-4}$, $2^{-5}$, $2^{-6}$, $2^{-7}$, diluent groups. 2. Effects of Anti-metastasis 1) S-180 cancer cell line transplants in BALB/c mice were inhibited significantly in weight increase in all the sample groups, compared with control group. The surviving number increased in almost sample groups, except one group put into Chok-Samni(ST36) with 20% Rubi Fructus infusion solution treatment group that showed same number of the control group. 2) S-180 cancer cell line transplants in BALB/c mice showed high MST significantly in almost sample groups, compared with control group. But one group put into Chok-Samni(ST36) with 20% Rubi Fructus infusion solution showed low MST than control group. 3) The group injected in vein with B16-F10 cancer cell line in C57BL/6 mice showed increased ILS than control group significantly in anti-metastasis test. 3. Effects of Immune response improvement 1) The group injected in vein with B16-F10 cancer cell line in C57BL/6 mice were increased significantly in the number of leukocyte and glucose, and decreased significantly in the amount of platelet and LDH, compared with control group. However, there's no significant increase or decrease in number of erythrocyte, total protein and creatinine. 2) We couldn't find any significant relation in spleen weight of the sample group. 3) In pulmonary colony, sample group was decreased significantly, compared with control group. 4) Histological analysis of sample group inhivited compared with that of control group in both of lung and liver. 5) In immune system, all the sample groups showed having more relevancy to the effect on splenic cell proliferation than normal group. 6) Cytokine gene increased in almost sample groups, except one group treated with $50{\mu}g/m{\ell}$ Rubi Fructus infusion solution on IL-12. 7) In flow cytometry there's no significant relation in number of $CD8^+$ cell, however, the number of $CD4^+$, $CD19^+$ cell and NK cell in sample group had more relation than in control group. Above the results showed that aqua-acupuncture of Rubi Fructus solution has effects of anti-cancer, and-metastasis and immune response improvement.

  • PDF

EFFECTS OF HYDROQUINONE ON NEOPLASTIC TRANSFORMATION OF HUMAN EPITHELIAL CELLS IN CULTURE (Hydroquinone이 인체 상피세포의 발암화에 미치는 영향)

  • Sohn, Jung-Hee;Kim, Chin-Soo
    • Maxillofacial Plastic and Reconstructive Surgery
    • /
    • v.32 no.3
    • /
    • pp.218-228
    • /
    • 2010
  • Components of dental resin-based restorative materials are reported to leach from the filling materials even after polymerization. Hydroquinone (HQ) is one of the major monomers used in the dental resin and is known as a carcinogen. Thus, carcinogenic risk of HQ leaching from the dental resin becomes a public health concern. The present study attempted to examine the carcinogenic potentials of HQ on the human epithelial cell, which is the target cell origin of the most of oral cancers. Cytotoxicity of HQ was observed above 50${\mu}M$ as measured by LDH assay, indicating a relatively low toxicity of this substance in human epithelial cells. The parameters of neoplastic cellular transformation such as cell saturation density, soft agar colony formation and cell aggregation were analyzed to examine the carcinogenic potential of HQ. The study showed that 2-week exposure of HQ showed the tendency of increase in the saturation density and the significant enhancement of soft agar colony formation at the highest dose, 50 ${\mu}M$ only. It is suggested that HQ has a weak potential of carcinogenicity. When cells were treated with HQ and TPA, a well-known tumor promoter, the parameters of neoplastic cellular transformation was significantly increased. This result indicates that the potential risk of carcinogenicity from HQ is largely dependent upon the presence of promoter. Exposure of 50 ${\mu}M$ HQ increased the time-dependent apoptosis as measured by the ELISA kit. This concentration coincides with a dose of neoplastic transformation, indicating a possible link between apoptosis and HQ-induced cellular transformation. Hydroquinone generated Reactive Oxygen Species (ROS) which was evidenced by the treatment of antioxidants such as trolox and N-acetyl cysteine and the GSH depleting agent, BSO. Antioxidants blocked the generation of ROS and the GSH depleting agent, BSO dramatically increased the ROS production. Since HQ is known to increase ROS production thru activation of transcriptional factor such as c-Myb and Pim-1, it is speculated that ROS generation by HQ plays a role in the activation of oncogene, which may lead to neoplastic transformation. In addition, ROS is involved in the alteration of signal transduction, which regulates the apoptosis in many cellular systems. Thus, ROS-mediated apoptosis may be involved in the HQ-induced carcinogenic processes. Protein kinase C (PKC) is known to play pivotal roles in neoplastic transformation of cells and its high expression is often found in a variety of types of tumors including oral cancer. PKC translocation of PKC-${\alpha}$ was observed following HQ exposure. Altered signaling system may also play a role in the transformation process. Taken together, HQ leached from the dental resin does not pose a significant threat as a cancer causing agent, but its carcinogenic potential can be significantly elevated in the presence of promoter. The mechanism of HQ-induced carcinogenesis involved ROS generation, apoptosis and altered signaling pathway. The present study will provide a valuable data to estimate the potential risk of HQ as a carcinogen and understand mechanism of HQ-induced carcinogenesis in human epithelial cells.

Harmonization of Hemolysis Index in Clinical Chemistry Laboratory and Its Application as a Result Verification Tool (화학검사 결과의 검증을 위한 용혈 지수 일치화 도구 개발)

  • Pyo, Sang Shin;Nam, Hyun Su;Cha, Young Jong;Lee, Seungkwan;Lee, Hae Kyung
    • Korean Journal of Clinical Laboratory Science
    • /
    • v.49 no.4
    • /
    • pp.350-358
    • /
    • 2017
  • The hemolysis index (HI) is semi-quantitative marker for hemolysis. Because the characteristics of the HI vary from one commercial platform to another, no standardization or harmonization of the HI is currently available. Specimens (N=40) randomly selected from clinical patients were artificially hemolyzed in vitro. The serum of the specimens was then diluted with a 20 mg/dL difference between 0~300 mg/dL based on serum hemoglobin measured using the XE-2100 hematology automation equipment (Sysmex, Japan). Diluted serum was measured using the Hitachi-7600 biochemical automation equipment (Hitachi, Japan) to differentiate between HI and serum hemoglobin. The data showed linearity between HI and serum hemoglobin and that HI 1 contained approximately 20 mg/dL of serum hemoglobin. To determine the blood rejection threshold, the HI was divided into three groups: HI 0~1, HI 4~6, HI 9~15. After another batch of clinical specimens (N=40) was measured using a Hitachi-7600 (Hitachi, Japan), each specimen was moved forward and backward with the piston of the syringe to induce an artificial in vitro hemolysis, then measured again with a Hitachi-7600 (Hitachi, Japan). The percentage difference between the three groups was analyzed by ANOVA or the Kruskal-Wallis test. In the post-test, there were significant differences between the HI 0~1 and the HI 5~6: Glucose, creatinine, total protein, AST, direct bilirubin, uric acid, phosphorus, triglyceride, LDH, CPK, Magnesium, and potassium levels. Because many clinical tests differed significantly, the threshold for hemolysis could be appropriate for HI 5 (serum hemoglobin 100 mg/dL).

Effects of Gibberellic Acid and Abscisic Acid on Proteolysis of Senescing Leaves from Rice Seedlings (노화 수도유묘엽의 단백질분해에 미치는 GA$_3$과 ABA의 영향)

  • Kang, S. M;Kang, N. J;Cho, J. L;Kim, Z. H;Kwon, Y. W
    • KOREAN JOURNAL OF CROP SCIENCE
    • /
    • v.38 no.4
    • /
    • pp.350-359
    • /
    • 1993
  • The effect of gibberellic acid ($GA_3) and abscisic acid (ABA) on KCl-enhanced proteolysis of senescing leaves of rice(Oryza sativa L. cv. Chilsung) was studied. Emphasis was given to their effects on KCI-enhanced efflux of amino acids and proteinase activity. When treated singly, $GA_3 affected leaf proteolysis little, while ABA increased proteolysis, the rate of amino acid efflux, and ribulose -1,5 -bisphosphate carboxylase / oxygenase (Rubisco)-degrading endoproteinase activity. An additive increase in all three parameters mentioned above was observed when leaves were treated with ABA and KCl. No such an additive effect was found when $GA_3 was treated with KCl. Both $GA_3 and ABA helped to alleviate the KCI-suppressed activity of Rubisco-degrading exoproteinases. The additive increase in proteolysis of rice leaves in the presence of both ABA and KCl could thus be ascribed to a further increase in the efflux of protein hydrolyzates and Rubisco-degrading endoproteinase activity. An increase in proteolysis was accompanied by a decrease in water absorption, and the combined treatment of ABA with KCl resulted in a further reduction of water absorption.

  • PDF

Geographic Variation and Interspecific Hybridization between Two Species of the Genus Agkistrodon (Crotalidae) in Korea (한국산 살모사속(뱀과) 2종의 지리적 변이 및 종간 잡종)

  • 백남극;양서영
    • Animal Systematics, Evolution and Diversity
    • /
    • v.5 no.1
    • /
    • pp.77-88
    • /
    • 1989
  • Genetic and morphometric comparison between two species of the genus Agkistrodon were performed to estimate the degree of genic variation and to clarify the taxonomic status of Cheju population, a suspected hybrid form between A. blomhoffii brevicaudus and A u ussuriensis. A sum of 147 specimens representing six populations of A.b. brevicaudus and two populations of A ussuriensis was used in this study. Out of the 21 loci examined, 5 loci (Adh, Ldh-2, Mdh-2, Mpi, Pgi) were monomorphic with identical mobility in both species. O Other Sioci (Aco, Gp, Fum, [po and Xdh in A b. brevicaudus; Est, Got-l, Gp, Mdh-l and 6Pgd in A ussuriensis) were highly poplymorphic. The degree of genic variation of Ab. b brevicaudus and A ussuriensis was A=1.SS, P=42.1%, HD=0.096, HG=O.l1S, and A= 1.4S, P = 31.6%, HD=0.117, HG =0.121, repectively. These values are twofold higher t than those of other reptilian species reported (Selander, 1976) including Korean species of Rhabdophis tigrina and Elaphe dione (Paik and Yang, 1986, 1987). The average values of t the genetic similarities among six populations of A b. brevicaudus and two populations of A ussuriensis were S=0.919 and S=0.962, respectively, whereas the value between species was S = 0.662. Presumed divergent time estimate (Nei, 1975) of these two species was about 1 1.8 million years ago. The analysis of the geographic variations of various morphological c characters was based on Gloyd’s criteria (Gloyd, 1972). Coloration of tongue and tail tip, t the number of ventral scales, and the number of subcaudal scales are good diagnostic c characters to identify these two species. The pattern of cross band is, however, highly variable within and between populations of both species. No hybrid was detected and the s suspected hybrid form of Cheju population falls within the range of A. ussuriensis in the g genetic and morphometric analyses.

  • PDF