• Journal of Pharmaceutical Investigation
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• v.40 no.2
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• pp.101-107
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• 2010

A rapid and sensitive reversed-phase high performance liquid chromatography (HPLC) method was developed for the determination of N-(-4-Chlorophenyl)-6-hydroxy-7-methoxy-2-chromanecarboxamide (KAL-1120), a novel anti-inflammation agent, in the rat plasma. The method was applied to analyze the compound in the biological fluids such as bile, urine and tissue homogenates. After liquid-liquid extraction, the compound was analyzed on an HPLC system with ultraviolet detection at 275 nm. HPLC was carried out using reversed-phase isocratic elution with a $C_{18}$ column, a mobile phase of a mixture of acetonitril (40 v/v%) at a flow rate of 1.0 mL/min. The chromatograms showed good resolution and sensitivity and no interference of plasma. The calibration curve for the drug in plasma was linear over the concentration range of 0.05-50 ${\mu}g$/mL. The intra- and inter-day assay accuracies of this method ranged from 0.06% to 9.33% of normal values and the precision did not exceed 6.28% of relative standard deviation. The plasma concentration of KAL-1120 decreased to below the quantifiable limit at 1.5 hr after the i.v. bolus administration of 2-10 mg/kg to rats ($t_{1/2,({\alpha})}$ and $t_{1/2,({\beta})$ of 2.15 and 26.7 min at a dose of 2 mg/kg, 3.91 and 33.0 min at a dose of 10 mg/kg, respectively). The steady-state volume of distribution ($V_{dss}$) and the total body clearance ($CL_t$) were not significantly altered in rats given doses from 2 to 10 mg/kg. Of the various tissues tested, KAL-1120 was mainly distributed in the lung and heart after i.v. bolus administration. KAL-1120 was detected in the bile by 30 min after its i.v. bolus administration. However, the concentration in the urine after i.v. bolus administration became too low to measure, suggesting that KAL-1120 is mostly excreted in the bile. In conclusion, this analytical method was suitable for the preclinical pharmacokinetic studies of KAL-1120 in rats.

• Journal of Animal Science and Technology
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• v.50 no.2
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• pp.265-272
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• 2008

The CCAAT/enhancer binding protein β(C/EBPβ), a member of the leucine zipper DNA-binding protein of transcription factor, plays a crucial role in the control of early phases of adipocyte differentiation. In this studies, we report the identification, characterization, and expression of the Korean native cattle C/EBPβ gene. The Korean native cattle and black cattle C/EBPβ cDNA includes a 1047bp open reading frame encoding a protein of 348 amino acids. The C/EBPβ cDNA sequence of the Korean native cattle and black cattle shows high conservation with the corresponding amino acid sequences reported in other species. The distribution of C/EBPβ mRNA in various tissues of Korean native cattle aged 26 months was investigated using Northern Blot analysis. The C/EBPβ expression was detected in adipose tissue, lung, sirloin while expression was not detected in heart, kidney, small intestine, colon, and liver. However, we are analyzed polymorphism of bZIP domain in the C/EBPβ gene. A polymorphism was not identified at this position.

• Tuberculosis and Respiratory Diseases
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• v.58 no.1
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• pp.68-73
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• 2005

Pulmonary sequestration is a very rare congenital malformation in which a mass of pulmonary tissue is detached from the normal lung and receives its blood supply from a systemic artery. It may be clinically asymptomatic or it has a wide spectrum of various clinical manifestations. The clinical therapeutic approach is to resect the sequestered lobe to prevent frequent complication such as infection. The arterial embolization of feeding artery is a new technique and a less invasive treatment than conventional surgical removal. We have experienced a 17-year-old male with pulmonary sequestration whose complaints were pain in left lower chest. He was diagnosed by computed tomography and aortography and successfully treated with embolization of feeding artery. We report a case of pulmonary sequestration treated with arterial embolization instead of surgery.

• Tuberculosis and Respiratory Diseases
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• v.65 no.4
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• pp.334-338
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• 2008

Solitary fibrous tumors of the pleura (SFTPs) are relatively rare tumors that originate from the mesenchymal cells of the submesothelial tissue of the pleura. Patients with SFTPs are often asymptomatic, while some patients experience pleuritic chest pain, cough and/or dyspnea. We report here on a case of SFTP, and the patient presented with septic shock and respiratory failure that required mechanical ventilation. A 68-year-old woman was admitted for the evaluation of her dyspnea and generalized edema. Chest imaging studies showed an 18 cm-sized voluminous mass occupying the right thoracic cavity with anterior displacement of hilar structures and atelectasis of the right lung. Immediately after admission, she developed pneumonia and septic shock that required antibiotics and mechanical ventilation. She displayed a partial response to medical treatment, and then complete excision of the tumor was performed and the pathologic examination revealed benign SFTP. Afterward, she fully improved without evidence of recurrence until now.

• Journal of Haehwa Medicine
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• v.13 no.2
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• pp.277-287
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• 2004

I have come to next conclusions in consequence of documentary study about medical books of many generations regarding venesection therapy. 1. Venesection therapy is much used for five sensory organ disease. Besides that internal disease, pain paralysis disease of muscle and joints, sugical disease, disease of woman and children, fever sunstroke CVA emergency case follow that in the order of frequency of use. 2. It is used for swollen tongue, eye pain, pharyngitis, swelling and pain in the throat, bleeding from the eye ear nose mouth or subcutaneous tissue, tonsillitis, aphthae and so on in the five sensory organ disease. Focus, sosang, jinjin yuye, taiyang, baihui are used for five sensory organ disease in the order of frequency of use. 3. It is used for malaria, headache, precordial pain, head-wind, abdominal colic, diseases characterized by acute diarrhea and vomiting, and so on in the Internal disease. Superficial venules and lymph vessesls, taiyang, quze are used for Internal disease in the order of frequency of use. 4. It is used for low back pain, hypochondriac pain, numbness, knee pain, tinea pedis, red swelling pain of hand and arm, flaccidity-syndrome, and so on in the pain paralysis disease of muscle and joints. Weizhong, superficial venules and lymph vessesls, Ashi point, zhigou are used for pain paralysis disease of muscle and joints in the order of frequency of use. 5. It is used for furuncle, tinea capitis, and so on in the sugical disease. Focus, weizhong are used for sugical disease in the order of frequency of use. 6. It is used for inflammatory disease with redness of skin, and so on in the disease of woman and children. Focus, weizhong, yanglingquan, yaoshu, sanyinjiao are used for disease of woman and children in the order of frequency of use. 7. It is used for fever, CVA, sunstroke, cadaverous coma, common cold, and so on in the fever sunstroke CVA emergency case. Sosang, weizhong, chize are used for fever sunstroke CVA emergency case in the order of frequency of use. 8. The urinary bladder channel of foot-taiyang is most used. Next there are the du channel, the stomach channel of foot-yangming, the lung channel of hand-taiyin, the gall baldder channel of foot-shaoyang, the triple-warmer channel of hand-shaoyang, the large intestine channel of hand-yangming, the spleen channel of foot-taiyin, the kidney channel of foot-shaoyin the pericardium channel of hand-jueyin the liver channel of foot-jueyin, the ren channel, the heart channel of hand-shaoyin, the small intestine channel of hand-taiyang in the order of frequency in use. 9. Superficial venules and lymph vessesls, focus, five shu points, extra-point, back point are used in the venesection therapy, those are characteristic of locating an acupuncture point.

• Tuberculosis and Respiratory Diseases
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• v.50 no.5
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• pp.579-590
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• 2001

Background : The aging process may be induced, at least in part, by reactive oxygen species(ROS). It has been thought that the lung could be a good source of ROS because it has a high oxygen tension. In the present study, we invetigated the inducibility of the first and last lines against oxidative stress, superoxide dismutases(CujZn-SOD and Mn-SOD) as a scavenger of ${O_2}^-\;{\cdot}$ and metallothionein(MT) as a scavenger of $OH{\cdot}$, respectively, in mouse lungs with age. Methods : Oxidative stress was induced by paraquat, an intracellular superoxide generator, at 1, 4, 8, and 12 months of age and then SODs and MT mRNAs were determined by RT-PCR method. Results : The steady-state level of Mn-SOD mRNA increased from 1 to 8 months but decreased thereafter. However, Mn-SOD mRNA was not induced by paraquat after 1 month. On the other hand, there was no change in the steady-state level of Cu/Zn-SOD mRNA, which decreased abruptly at 12 months of age. Additionally, Cu/Zn-SOD mRNA was not induced by paraquat at any age. There was no change in the steady-state level of MT mRNA with age whereas its inducibility by paraquat was intact at all ages. Conclusion : These results indicate that lack of induction of SODs with age may be one of the causative factors in the aging process while induction of MT may play an important role in the defense against oxidative stress. It is therefore implicated that the tissue antioxidant/prooxidant balance could be one of determinants of mean life span.

• KSBB Journal
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• v.19 no.2
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• pp.138-142
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• 2004

Cigarette smoke causes atypical structure of pulmonary (cell structural) and oxidative damage. Therefore, we carried out to determine if exposure to cigarette smoke alters pulmonary structure and anti-oxidant related enzyme in a ICR mice model, when natural product extracts using by manual sprayer. The mice were divided into five groups, control group, sham-treated group (Sham), natural product extracts-treated group (NPE), natural product extracts-treated with smoke-exposed group (NPE-SM) and smoke-exposed (SM) group. All groups are similar to control group in weight, but SM group is lower than the other groups. Microscopic image of the pulmonary structure in SM group showed deleterious alterations in the morphology, but the other groups are maintained in original structure. In anti-oxidant related enzyme, SOD (superoxide dismutase) and catalase, SM group represents the lowest enzyme activity among all groups. These results indicate that the natural product extracts is an efficient tissue protective agent against smoke-induced lung injury.

• YAKHAK HOEJI
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• v.42 no.4
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• pp.437-446
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• 1998

The distribution, metabolism and excretion of CKD-602{20(S)-7-[2-(N-Isopropylamino)ethyl]camptothecin HCI), a new camptothecin derivative, were investigated in rats after a sing le administration of CKD-602. 1. The tissue levels of CKD-602 given to mice by the intravenous route at a dose of 20mg/kg were the highest in intestine, followed in descending order by kidney, liver, stomach,lung, heart, spleen and plasma. The concentrations of CKD-602 after 24hrs decreased to less than 2% of the peak level in most tissues except the skin. The urinary and fecal excretion of CKD-602 were 47.6% and 44.4% of the administered dose, respectively, with 0.7% remaining in the rinse. 2. After administration of CKD-602 at 10mg/kg in rats, metabolism of this compound was examined in plasma, urine, and feces. The plasma samples were collected for 24hr, urinary and fecal samples for 72hr. While any peak of CKD-602 in HPLC chromatograms was not detected from plasma and urine it was detected in feces (peaks, 9.8 min). However, additional peak area was about 0.5% of the peak area of parent CKD-602. Therefore, CKD-602 may be eliminated with the parent form and rarely metabolized in the body. 4. After I.v. administration of CKD-602 at 10mg/kg in rats, urinary and fecal excretions were examined for 72hrs post dose period. 87% of total urinary excretion of CKD-602 was excreted within 8hr after administration, 53%, and 32% of total fecal excreted amounts were determined in 0-24 hr and 24-48hr periods, respectively. The total excretion amounts of CKD-602 into urine and feces were 94% of the administered dose.

• Journal of the Optical Society of Korea
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• v.20 no.5
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• pp.607-613
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• 2016

The pleura is known as an end target organ of exposure to toxic environmental materials such as fine particulate matter and asbestos. Moreover, long-term exposure to hazardous materials can eventually lead to fatal lung disease such as diffuse pleural fibrosis or mesothelioma. Chest computed tomography (CT) and ultrasound are gold standard imaging modalities for detection of advanced pleural disease. However, a diagnostic tool for early detection of pleural reaction has not been developed yet due to difficulties in imaging ultra-fine structure of the pleura. Optical coherence tomography (OCT), which provides cross-sectional images of micro tissue structures at a resolution of 2-10 μm, can image the mesothelium with a thickness of ~100 μm and therefore enables investigation of the early pleural reaction. In this study, we induced the early pleural reaction according to a time sequence after pleurodesis using talc, which has been widely used in the clinical field. The pleural reaction in talc grouped according to the time sequence (1st, 2nd, 4th weeks) showed a significant thickening (average thickness: 45 ± 7.5 μm, 80 ± 10.7 μm, 90 ± 12.5 μm), while the pleural reaction in sham and normal groups showed pleural change from normal to minimal thickening (average thickness: 16 ± 5.5 μm, 17 ± 4.5 μm, 15 ± 6.5 μm, and 12 ± 7.5 μm, 13 ± 2.5 μm, 12 ± 3.5 μm). The measurement of pleural reaction by pathologic examinations was well-matched with the measurement by OCT images. This is the first study for measuring the thickness of pleural reactions using a biophotonic modality such as OCT. Our results showed that OCT can be useful for evaluating the early pleural reaction.

• Tuberculosis and Respiratory Diseases
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• v.40 no.2
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• pp.185-191
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• 1993

Background: Intercellular adhesion molecule-1(ICAM-1) is a 90 kD surface glycoprotein, associated with ${\alpha}_L{\beta}_2$ and ${\alpha}_M{\beta}_2$ subunit of integrins, that serve as cell-cell and cell-substratum adhesion molecules and help regulate cellular morphology, differentiation, and proliferation. The adhesion molecules likely play important roles in maintaining the normal structure and function of the lung. ICAM-1 system among many cell adhesion molecules is importantly issuing in the pathogenesis of idiopathic pulmonary fibrosis. Methods : By using $IgG_1$ monoclonal antibody for ICAM-1, we investigated immunohistochemically the expression of ICAM-1 in the formalin-fixed, paraffin-embedded tissue sections of the 3 normal cases and 6 pieces of tissues taken 3 cases with idiopathic pulmonary fibrosis. Results : In the 3 normal cases, the expressions of ICAM-1 were not discernible. Up-regulation of the ICAM-1 expression was showed in the interstitial fibroblast cells of alveolar septa in 5 pieces and proliferated alveolar pneumocytes in 1 piece among 6 pieces of tissues taken 3 cases with idiopathic pulmonary fibrosis. Conclusion : It was concluded from these findings that up-regulation of the ICAM-1 expression may be related to pathogenesis of idiopathic pulmonary fibrosis.