• Title/Summary/Keyword: Clinical chemistry

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Molecular Analysis of HLA-C Using Polymerase Chain Reaction-Sequence Specific Primers

  • Lee, Kyung-Ok;Hong, Sung-Hoi;Kim, Min-Jung;Park, Taek-Kyu;Kim, Yoon-Jung;Lee, Kyu-Pum
    • BMB Reports
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    • v.30 no.1
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    • pp.26-32
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    • 1997
  • Of all HLA class I molecules, HLA-C gene products are most poorly understood because they express at a low level on the cell surface compared to HLA-A and -B. In order to identify serologically detectable and undetectable HLA-C antigens, we have established a DNA-based tissue typing method for the HLA-C locus by PCR-SSP (polymerase chain reaction-sequence specific primers). Genomic DNA prepared from Iymphoblastoid 21 B-cell lines and 120 Korean individuals by proteinase K digestion and pheno/chloroform extractions have been typed by PCR-SSP (23 primer mixes were used). The PCR-SSP results of control cell lines were discrepant from serology in 1 case among 21 cases: Cw6 which was negative by serology but positive by PCR-SSP (cell line: MANIKA). Twenty four HLA-Cw "blank" antigens among fifty Korean individuals were completely determined by PCR-SSP DNA typing. HLA-Cw*0101 (15.3%), Cw*1401 (12.3%) and Cw*0701 (11.7%) alleles were frequently found in 120 Korean individual samples. In conclusion. the high level of discrimination for HLA-C alleles may prove useful and informative in the study of transplant survival, and identify the importance of allelic differences, not readily detectable by serology, on host and donor compatibility.

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Dose range finding study of KOB03, a new polyherbal medicine for the treatment of allergic rhinitis, by oral administration for four weeks in Sprague-Dawley rats (한약제제 KOB03의 랫드에서의 4주 반복 경구투여에 의한 독성 연구)

  • Jung, Jin-Ki;Park, Yong-Ki
    • The Korea Journal of Herbology
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    • v.27 no.3
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    • pp.101-106
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    • 2012
  • Objectives : To evaluate the toxicity of KOB03, polyherbal medicine for the treatment of allergic rhinitis, we performed the dose-range finding test of KOB03 by oral supplementation for 4 weeks in Sprague-Dawley rats. Methods : The water extract of KOB03 consisting of five different herbs was supplied from GLP company. KOB03 was supplemented by gavage at 0, 500, 2,500 and 5,000 mg/kg/day for 4-week consecutive days. We recorded the clinical signs of toxicity, body weight, organ weights, hematology, gross and histological changes in target organs of rats, and clinical chemistry analysis. Results : KOB03 at all doses was shown no mortality or abnormal clinical signs in rats during at the observation period. Furthermore, there was no difference in body weight and food-take consumption, organ weight, gross pathological findings, and urine analysis among the groups of rats treated with different doses of KOB03. The hematological analysis and clinical blood chemistry data were revealed no toxic effects from KOB03-supplemented rats. Conclusions : The results suggest that KOB03 is a wide margin of safety on dose-range toxicity in rats. The no observable adverse effect level (NOAEL) of the test, KOB03 in rats is no less than 5,000 mg/kg/day.

A Study on the Safety of Bangpungtongsung-san in Rats (랫드에서 방풍통성산의 안전성 연구)

  • Jung, Ko-Eun;Lee, Kyoung-Jin;Lee, Chul-Won;Kwak, In-Seok;Lee, Jang-Cheon;An, Won-Gun
    • Herbal Formula Science
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    • v.20 no.2
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    • pp.55-63
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    • 2012
  • Objectives : This study was conducted to investigate the safety of Bangpungtongsung-san in rats. Methods : The safety of this prescription on acute toxicity was evaluated by single dose toxicity study. Rats were orally administrated in a single dose of 0 and 2,000 mg/kg(limited dose) Bangpungtongsung-san. There were 7 rats in each groups. All animals were sacrificed after 14 days of treatment. After single administration, mortality, clinical signs, and body weight changes were observed for 14 days. Three parameters(autopsy finding, clinical chemistry, and hematology) were tested on the last day. Results : In this study with rats, Bangpungtongsung-san treatment did not show any acute toxicity. No mortality was noted for 14 days of treatment. There were no adverse effects on clinical signs, body weight changes, and autopsy finding at all treatment groups. The clinical chemistry parameters attesting to liver and kidney functions as well as the hematological parameters were within the normal ranges. Conclusions : It is considered that $LD_{50}$ of Bangpungtongsung-san is over 2,000 mg/kg in oral administration by rats. This finding of the safety of Bangpungtongsung-san is expected to strengthen the position of this prescription as nontoxic medicine.

Detection of Mycobacterium Tuberculosis by Loop-Mediated Isothermal Amplification Assay (등온 증폭법을 이용한 결핵균의 빠른 검출 시스템 개발)

  • Ahn, Young-Chang;Nam, Youn-Hyoung;Park, Su-Min;Cho, Min-Ho;Seo, Jae-Won;Yoon, Il-Kyu;Park, Yong-Hyun;Jang, Won-Cheoul
    • Journal of the Korean Chemical Society
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    • v.52 no.3
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    • pp.273-280
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    • 2008
  • Mycobacterium tuberculosis (MTB) remains a major worldwide public health problem. In recent years, the incidence of MTB has been rising. Rapid and reliable diagnosis of Mycobacterium tuberculosis is essential to initiate correct treatment, avoid severe complications, and prevent transmission. LAMP was used to develop a rapid and sensitive laboratory diagnostic system for the MTB. In this research, the loop-mediated isothermal amplification method (LAMP) that amplifies DNA with high specificity and rapidity at an isothermal condition was evaluated for rapid detection of MTB. Undiluted DNA (2.10 × 106 copy/mL), 10-1, 10-2, 10-3, 10-4, 10-5 and 10-6 (copy/mL) of MTB DNA were amplified by PCR and LAMP to determine the sensitivity of the assay. At results, the LAMP assay reported here has the advantages of rapid amplification, high sensitivity, and high specificity and will be useful for rapid and reliable clinical diagnosis of MTB in hospital clinical laboratory.

Preparation of Radiopharmaceutical (II) (방사성의약품(放射性醫藥品) 합성방식(合成方式)에 관(關)한 연구(硏究) -제 II 보-(第 II 報))

  • Kim, You-Sun;Kim, Tae-Young;Uhm, Kyung-Ja
    • The Korean Journal of Nuclear Medicine
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    • v.2 no.1
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    • pp.67-71
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    • 1968
  • Mercury bromo hydroxy propane-$Hg^{203},\;Tc-^{99m}$ colloidal, $Tc-^{99m}$ per technate (from $Tc-^{99m}$ Generator) were prepared and prepared products were tested their clinical usability to give agreeable results. Labelling of HSA by $Tc^{99m}$ and coagulation of HSA to MAA were conducted on a lab. scale. The iodine containning Radiopharmaceuticals; Hippuran, Sodiumiodide (inj), RISA, MAA, Rosebengal, Triolein, Phosphorus protein and $Mercury^{203}$ neohydrine were prepared by the conventional procedure. Total 206. 4 mC of Radiopharmaceuticals were prepared and 141.910 mC of them were distributed to the major users in this country.

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Bauhinia rufescens, Ocimum basilicum and Salvadora persica: a review of their chemical compounds and properties for antimicrobial, antioxidant and cytotoxicity

  • Abdel-razakh Hissein Hassan;Gaymary George Bakari;Cheol-Ho Pan;Abubakar Shaaban Hoza
    • Journal of Applied Biological Chemistry
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    • v.66
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    • pp.179-185
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    • 2023
  • Bauhinia rufescens, Ocimum basilicum and Salvadora persica are well known plants used in African traditional medicine, especially in Chadian traditional medicine. They are mostly used in the treatment of infectious diseases, inflammatory diseases, fever, and so on. Studies using various in vitro and in vivo bioassay techniques support the scientific rationale for most of these usages. In this review, ethnobotanical uses, chemistry of natural products, and pharmacological and clinical data for these plants are presented.

The Analysis of Incidence and Type of Adverse Events in Acupuncture & Moxibustion Clinical Trials (침구임상시험에서 나타난 이상반응 발생률 및 유형 분석)

  • Jung, Hee-Jung;Park, Ji-Eun;Liu, Yan;Kim, Ae-Ran;Choi, Sun-Mi
    • Korean Journal of Acupuncture
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    • v.29 no.3
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    • pp.421-430
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    • 2012
  • Objectives : We investigated the incidence rate and type of adverse events associated with RCTs(Randomized Controlled Trials) of acupuncture and moxibustion. Methods : This study included 949 patients who received acupuncture or moxibustion or usual care from 8 RCTs. We collected data including gender and age of patients, intervention, treatment frequency and type of adverse events in clinical trials from their case report forms. Results : Among the 949 patients, 83 patients(8.7%) suffered at least one adverse event throughout the clinical trials. Types of adverse event in acupuncture & moxibustion clinical trials are common cold, skin changes, pain, dizziness, bruise, gastrointestinal diseases, changes of blood chemistry, burn. Adverse events were significantly correlated to patients' age, intervention, body mass index and treatment group. Conclusions : A Guide-line for collecting and managing adverse events of acupuncture & moxibustion clinical trials are needed.

Nanotechnology in reproductive medicine: Opportunities for clinical translation

  • Shandilya, Ruchita;Pathak, Neelam;Lohiya, Nirmal Kumar;Sharma, Radhey Shyam;Mishra, Pradyumna Kumar
    • Clinical and Experimental Reproductive Medicine
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    • v.47 no.4
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    • pp.245-262
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    • 2020
  • In recent years, nanotechnology has revolutionized global healthcare and has been predicted to exert a remarkable effect on clinical medicine. In this context, the clinical use of nanomaterials for cancer diagnosis, fertility preservation, and the management of infertility and other pathologies linked to pubertal development, menopause, sexually transmitted infections, and HIV (human immunodeficiency virus) has substantial promise to fill the existing lacunae in reproductive healthcare. Of late, a number of clinical trials involving the use of nanoparticles for the early detection of reproductive tract infections and cancers, targeted drug delivery, and cellular therapeutics have been conducted. However, most of these trials of nanoengineering are still at a nascent stage, and better synergy between pharmaceutics, chemistry, and cutting-edge molecular sciences is needed for effective translation of these interventions from bench to bedside. To bridge the gap between translational outcome and product development, strategic partnerships with the insight and ability to anticipate challenges, as well as an indepth understanding of the molecular pathways involved, are highly essential. Such amalgamations would overcome the regulatory gauntlet and technical hurdles, thereby facilitating the effective clinical translation of these nano-based tools and technologies. The present review comprehensively focuses on emerging applications of nanotechnology, which holds enormous promise for improved therapeutics and early diagnosis of various human reproductive tract diseases and conditions.