• Title/Summary/Keyword: Clinical chemistry

Search Result 544, Processing Time 0.02 seconds

Determination of isovitexin from Lespedeza cuneata using a validated HPLC-UV method

  • Lee, Ju Sung;Paje, Leo Adrianne;Yoo, Sang-Woo;Lee, Seong;Ku, Ja-Jung;Lee, Sanghyun
    • Journal of Applied Biological Chemistry
    • /
    • v.64 no.1
    • /
    • pp.63-67
    • /
    • 2021
  • Isovitexin, a marker compound with various pharmacological activities, in Lespedeza cuneata, was analyzed using high performance liquid chromatography coupled with UV (HPLC/UV). There are no previous reports on using L. cuneata as the source material for the quantification of isovitexin. In this study, we developed an optimized method using HPLC-UV analysis, which was validated using various parameters. Our method demonstrated high specificity, and good separation of the chromatographic peak was achieved. Parameters such as linearity (r2≥0.9997), precision, and accuracy indicated that our proposed analytical method had good reliability and sensitivity. These results demonstrate the utility and convenience of our method for rapidly quantifying isovitexin in L. cuneata extracts.

The inhibitory effects of glabridin on human platelet aggregation and thrombus formation

  • Sang-Nam Park;Hyuk-Woo Kwon
    • Journal of Applied Biological Chemistry
    • /
    • v.66
    • /
    • pp.455-461
    • /
    • 2023
  • Glycyrrhiza glabra is a well-known medicinal herb that grows in various parts of the world and glabridin is a major chemical compound that is found in the root extract of Glycyrrhiza glabra. Glabridin is a natural compound known to have antioxidant, anti-inflammatory, anti-atherogenic, anti-osteoporotic and skin-whitening. In this study, we investigated if glabridin inhibited platelet aggregation and thrombus formation. We observed that glabridin inhibited collagen-induced platelet aggregation and suppressed signal transduction molecules such as phosphatidylinositol-3 kinase (PI3K), Akt, glycogen synthase kinase-3α/β (GSK-3α/β), SYK, cytosolic phospholipase A2, and p38 expression. In addition, glabridin suppressed thromboxane A2 generation and thrombin-induced clot retraction. Taken together, glabridin showed strong antiplatelet effects and may be used to block thrombosis- and platelet-mediated cardiovascular diseases.

Effectiveness of Clinical Examination for Detection of Respiratory Tuberculosis (호흡기 결핵 환자에서 임상 검사의 유용성)

  • Choi, Woo-Soon;Choo, Sang-Kyu
    • Korean Journal of Clinical Laboratory Science
    • /
    • v.38 no.1
    • /
    • pp.54-58
    • /
    • 2006
  • To find out the effectiveness of clinical examination for the diagnosis of respiratory tuberculosis, a 78 respiratory tuberculosis patient,s group was matched by sex and age with 78 control healthy subjects. In the result of blood chemistry, mean values of $123.5{\pm}62.04mg/dL$ in glucose, $429.01{\pm}150.77IU/L$ in LDH, and $44.51{\pm}43.76IU/L$ in ${\gamma}$-GTP, were higher than that of the controls (healthy subjects), and $3.51{\pm}0.68mg/dL$ in albumin was lower than that of the controls. In the result of the haematology examination, mean values of $12.52{\pm}3.27g/dL$ in hemoglobin, $36.72{\pm}7.28%$ in hematocrit, and $24.61{\pm}12.36%$ in lymphocyte, were lower than that of the controls, $9.23{\pm}5.25%$ in monocyte $78.30{\pm}37.35mm/hr$ in ESR, and $48.45{\pm}35.15U/L$ in ADA were higher than that of the controls. For the comparisons of the tuberculosis patients values from normal reference values, 22.2% in glucose, 22.4% in LDH, 25.0% in ${\gamma}$-GTP, 35.4% in albumin, 88% in ESR, and 88.6% in ADA, showed abnormal values. We concluded that the values of glucose, ${\gamma}$-GTP, albumin, WBC, RBC, hemoglobin, hematocrit, lymphocyte, monocyte, ADA, and the ESR were useful in tuberculosis diagnosis.

  • PDF

Clinical Effectiveness of Cefoperazone(Cefobid) in Obstetrics-Gynecological Infection (부인과감염증(婦人科感染症)에 대(對)한 Cefoperazone(Cefobid)의 임상효과(臨床效果))

  • Park, S.K.;Lim, J.K.
    • The Korean Journal of Pharmacology
    • /
    • v.16 no.2 s.27
    • /
    • pp.71-75
    • /
    • 1980
  • A total of 30 cases of gynecological infection were treated with Cefoperazone at the Department of Ob-Gy, Seoul Baik Hospital, Seoul, Korea from Sept. 1979 to Aug. 1980. Cefoperazone sodium was administered in a dose of 2g/day intramusculary or intravenously for 6 to 13 days. The effective rates of Cefoperazone based on clinical and bacteriological response were 100% in 9 cases of acute non-gonorrheal PID, 5 cases of postpartum endometritis, 2 cases of recurrent non-gonorrheal PID and 80% in acute gonorrheal PID(8 out of 10 cases). A case of recurrent gonorrheal PID and 2 out of 3 cases of postoperative infection responded also satisfactorily to Cefoperazone treatment. There were no drug-related abnormal findings in urinalysis, hematology and blood chemistry. Any particular side effects, except for one case of fever and rash which disappeared spontaneously without any treatment or discontinuation of the drug, were not noted during or after the treatment.

  • PDF

A Case of Nephrotic Syndrome with Cerebral Infarction (뇌경색을 동반한 신증후군 환자 치험 1례 보고)

  • Kim, Seon-Kang;Park, Chul-Soo;An, Joong-Hwan;Kim, Jong-Dae;Kim, Hyeong-Hwan
    • The Journal of Internal Korean Medicine
    • /
    • v.22 no.1
    • /
    • pp.103-108
    • /
    • 2001
  • Nephrotic syndrome(NS) is characterized albuminuria, hypoalbuminemia, hyperlipidemia and edema. The thromboembolic complications of NS are reasonably common and have a broad range of clinical manifestations. The treatment of NS is empirical and symptomatic because the etiology and pathogenesis are unknown. We report treatment of patient who has been afflicted with NS for 20 years. He complained edema, dyspnea, Rt. hemiparesis, aphasia. We treated him with converting enzyme inhibitor, steroid, three kinds of herb-medicine for 45 days. The patient improved in clinical symptoms and routine chemistry, urine analysis test.

  • PDF

Development of Clinical Chemistry Analyzer with the Dry Reagent Strip(I) (건습시약 스트립을 사용한 임상화학분석장치 개발[I])

  • Yoo, Dong-Joo;Jung, Tae-Hwa;Min, Hong-Kee;Huh, Woong
    • Journal of Biomedical Engineering Research
    • /
    • v.13 no.4
    • /
    • pp.299-306
    • /
    • 1992
  • For quantitative measurement of reflected light from a clinical diagnostic scrip, a prototype of reflectance photometer was designed. The strip loader and cassette were made to obtain more accurate re(leclance parameters. The strop was illuminated at $45^{\circ}C$ through optical fiber and the intensity of reflected light was determined at rectangulat angle using a photodiode. The kubelka-munk coefficient and reflection optical density were determined ar four different wavelengths(500,550,570 and 610nm) for blood glucose strip. For higher concentration than 300mg/dl about glucose, a saturation state of absorbance was observed at 500,550 and 570nm. The correlation between glucose concentration and parameters was the best at 610nm.

  • PDF

The Clinical Study of Hydrotherapy Based Ultrasonic Spa (초음파 족욕를 이용한 수치료에 대한 임상적 연구)

  • Choi, Jong-Min;Kim, Hee-Taek;Ryu, Ju-Hyun;Lee, In-Su
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
    • /
    • v.18 no.1
    • /
    • pp.172-182
    • /
    • 2005
  • Objective : The purpose of this study was to know the clinical effect of Hydrotherapy based Ultasonic spa on Atopic Dermatitis and Allergic Rhinitis. Methods : Allery Test(MAST CLA Allergy system, inhalant panel), DITI, Bio Chemistry, Hematology were investigated in 20 patients(Atopic Dermatitis 10, Allergic Rhinitis 10) who visited Department of Ophthalmology & Otolaryngology & Dermatology, Semyung Oriental medicine hospital from November 2004 to January 2005. Results : 1. In atopic dermatitis patients, there was good in 7 cases(70%), excellent in 3 cases(30%). 2. In allergic rhinitis patients there was improved in 5 eases(50%), good in 2 cases(20%), unimproved in 3cases(30%). 3. In conclusion, there was good(doctor and patients ail) in 6(60%), unimproved in 3(30%) Conclusion : Hydrotherapy based Utasonic spa showed useful effect on Atopic Dermatitis and Allergic Rhinitis.

  • PDF

Neonatal isoerythrolysis in Thoroughbred foals

  • Kwon, Do Yeon;Choi, Seong Kyoon;Cho, Young Jae;Cho, Gil Jae
    • Korean Journal of Veterinary Research
    • /
    • v.51 no.1
    • /
    • pp.55-58
    • /
    • 2011
  • Two 4-day-old Thoroughbred foals with acute clinical signs of depression, elevated pulse and respiratory rates, anemia, and jaundice were referred to the equine hospital of Korea Racing Authority. The foals were seemingly normal at birth, but showed clinical signs such as abnormal behavior, jaundice and anemia suddenly after ingestion of the mare's colostrum, followed by death at 4 days after birth. According to the results of the hematology, serum chemistry analysis, jaundice foal agglutination test, and blood groups test, the foals were diagnosed as neonatal isoerythrolysis (NI) caused by the mare's antibodies. These results suggested that the pregnant mares have a potential for NI.

The Comparison of the Clinical Results Between Vinyl House Workers and Land Farmers (하우스재배 종사자와 노지재배 종사자의 임상검사 비교)

  • Kim, Byung-Sung
    • Journal of agricultural medicine and community health
    • /
    • v.19 no.1
    • /
    • pp.25-29
    • /
    • 1994
  • In order to find out the effects of vinyl house body, the author compared the physical and laboratory examinations between 96 cases of vinyl house farmers and 96 cases of land farmers who lived in 3 Gun's in Kyoungnam Province from July, 1st through September, 30, 1993. The examination included blood pressure, CBC, urinalysis, and blood chemistry. Systolic blood pressure and alkaline phosphates levels were lower in vinyl house farmers than in land farmers. But white blood cell counts were higher in vinyl house farmers and the other results were not different between two groups. It suggests that the environment of vinyl house - small, poorly ventilating, hot and humid environment - affected human body, then those facts should be considered during construction of vinyl houses.

  • PDF

Clinical Appliance of Structure-Function Studies of Salivary Macromolecules (타액 단백질의 기능 및 구조 연구의 임상적 적용)

  • 고홍섭
    • Journal of Oral Medicine and Pain
    • /
    • v.23 no.3
    • /
    • pp.241-247
    • /
    • 1998
  • Salivary research is at a critical crossroads regarding the clinical application of the basic knowledge. The purpose of this article is to introduce the current progress on salivary research to Korean dental scientists. The accumulated results based on advance technologies such as protein chemistry, molecular biology, and structural biology have showed that salivary macromolecules need structural requirements for proper function. Currently, several concepts or principles, which can be applied to salivary macromolecules, have been suggested. These include the role of molecules' conformation on biological activity, their multifunctional nature, their redundancy of function, their amphifunctional properties, and the potential importance of complexing between molecules. These concepts and the information available will help the development of saliva substitutes, the design of drug carriers and chimera molecules with enhanced function and the development of gene therapy protocols. These approaches will alleviate or restore lost salivary function and can be used to treat various kinds of oral and systemic diseases.

  • PDF