• Title/Summary/Keyword: Nonsteroidal Anti-Inflammatory Drugs (NSAIDs)

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Mechanism of Naproxen-Induced Antidiuretic Response in Dog (나프록센의 항이뇨작용 기전)

  • 고석태;이한구;유강준
    • YAKHAK HOEJI
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    • v.39 no.3
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    • pp.314-328
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    • 1995
  • This study was attempted to investigate the mechanism of retention of sodium and water by naproxen which is a drug among nonsteroidal anti-inflammatory drugs in dogs. Napoxen, when given intravenously in doses ranging from 30 mg to 100 mg/kg, elicited antidiuresis accompanied vath the decrease of osmolar clearance(Cosm) and amounts of sodium excreted in urine(E$_{Na}$), with the increase of sodium reabsorption rate in renal tubule(R$_{Na}$) and ratio of potassium against sodium (K/Na). Naproxen infused into a renal artery in doses ranging from 1.0mg to 3.0mg/kg/min produced both diuretic action in infused kidney and antidiuretic action in control kidney. Naproxen injected into carotid artery in doses ranging from 10.0 mg to 30.0 mg/kg exhibited antidiuretic action. Changes of renal function in the circumstances of above two antidiuresis were the same with aspect of intravenous naproxen. Antidiuretic action of naproxen injected into carotid artery was not affected by renal denervation, was blocked by pretreatment with i.v. arachidonic acid, prostaglandin precursor, or i.v. indomethacin, cyclooxygenase inhibitor. Naproxen injected into carotid artery abolished the diuretic action of i.v. spironolactone, aldosterone antagonist, and i.v. spironolactone blocked the antidiuretic action of naproxen given into carotid artery. The results suggest that naproxen produced antidiuresis, and sodium and water retention through the central system, the mechanism being related to the prostaglandin biosynthetic inhibition and aldostercfne like action.

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Effects of the Geijibokryunghwan on Carrageenan-induced Inflammation and COX-2 in Hepatoma Cells

  • Joo, Shin-Tak;Ban, Chang-Gyu;Park, Soon-Gi;Park, Won-Hwan
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.20 no.4
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    • pp.1027-1031
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    • 2006
  • In oriental medicine, Geijibokryunghwan(GBH) was used to improvement various symptoms created by the thrombosis. We investigated the effects of an oriental medicinal prescriptions, Geijibokryunghwan (GBH) consisting of herbs of Cinnamomi Ramufus (Geiji; 桂枝), Poria cocos (Bokrung; 茯?), Moutan Cortex Radicis(Modanpi; 牧丹皮), Paeoniae Radix (Jakyak; 芍藥) and Persicae Semen (Doin; 桃仁) on tumor growth-inhibitory activity and cancer chempreventive activity in assays representing three maior stages of carcinogenesis. Cancer chempreventive agents include nonsteroidal anti-inflammatory drugs (NSAIDS) such as indomethacin, aspirin, piroxicam, and sulindac, all of which inhibit cyclooxygenase (COX). Effects of the GBH extracts on carrageenan-induced edema Inflammation using female (C57BL/6XC3H) Fl (B6C3Fl ) mice and tumorigenesis were examined. Finally, cyclooxygenase metabolites were determined after extracts treatment. These data suggest that GBH extracts merits investigation as a potential cancer chempreventive agent in humans.

Activation of SAPK and Increase in Bak Levels during Ceramide and Indomethacin-Induced Apoptosis in HT29 Cells

  • Kim, Ju-Ho;Oh, Sae-Ock;Jun, Sung-Sook;Jung, Jin-Sup;Woo, Jae-Suk;Kim, Yong-Keun;Lee, Sang-Ho
    • The Korean Journal of Physiology and Pharmacology
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    • v.3 no.1
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    • pp.75-82
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    • 1999
  • It has been reported that activation of sphingomyelin pathway and nonsteroidal anti-inflammatory drugs (NSAIDS) inhibit the promotion of colon carcinoma. Ceramide, a metabolite of sphingomyelin, and indomethacin were shown to induce apoptosis in colon carcinoma cells. However, the mechanisms of ceramide- and indomethacin-induced apoptosis in the colon carcinoma cells are not clearly elucidated. Recent studys showed that indomethacin-induced apoptosis in colon cancer cells through the cyclooxygenase-independent pathways, and that may be mediated by generation of ceramide. In this study, we compared effects of ceramide and indomethacin on important modulators of apoptotic processes in HT29 cells, a human colon cancer cell line. Ceramide and indomethacin induced apoptosis dose- and time- dependently. Ceramide and indomethacin increased stress-activated protein kinase (SAPK) activity, and decreased mitogen-activated protein kinase (MAPK) activity. The expression of Bak was increased by the treatment of ceramide and indomethacin. The expression of other Bcl-2 related proteins (Mcl-1, $Bcl-X_L,$ Bax) which were known to be expressed in colon epithelial cells was not changed during the ceramide- and indomethacin-induced apoptosis. Our results suggest that ceramide and indomethacin share common mechanisms for induction of apoptosis in HT29 cells.

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Rotator Cuff Tears Syndrome (회전근개 파열 증후군)

  • Kang, Jeom-Deok;Kim, Hyun-Joo
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.13 no.1
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    • pp.67-72
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    • 2007
  • Anatomy: The rotator cuff comprises four muscles-the subscapularis, the supraspinatus, the infraspinatus and the teres minor-and their musculotendinous attachments. The subscapularis muscle is innervated by the subscapular nerve and originates on the scapula. It inserts on the lesser tuberosity of the humerus. The supraspinatus and infraspinatus are both innervated by the suprascapular nerve, originate in the scapula and insert on the greater tuberosity. The teres minor is innervated by the axillary nerve, originates on the scapula and inserts on the greater tuberosity. The subacromial space lies underneath the acromion, the coracoid process, the acromioclavicular joint and the coracoacromial ligament. A bursa in the subacromial space provides lubrication for the rotator cuff. Etiology: The space between the undersurface of the acromion and the superior aspect of the humeral head is called the impingement interval. This space is normally narrow and is maximally narrow when the arm is abducted. Any condition that further narrows this space can cause impingement. Impingement can result from extrinsic compression or from loss of competency of the rotator cuff. Syndrome: Neer divided impingement syndrome into three stages. Stage I involves edema and/or hemorrhage. This stage generally occurs in patients less than 25 years of age and is frequently associated with an overuse injury. Generally, at this stage the syndrome is reversible. Stage II is more advanced and tends to occur in patients 25 to 40 years of age. The pathologic changes that are now evident show fibrosis as well as irreversible tendon changes. Stage III generally occurs in patients over 50 years of age and frequently involves a tendon rupture or tear. Stage III is largely a process of attrition and the culmination of fibrosis and tendinosis that have been present for many years. Treatment: In patients with stage I impingement, conservative treatment is often sufficient. Conservative treatment involves resting and stopping the offending activity. It may also involve prolonged physical therapy. Sport and job modifications may be beneficial. Nonsteroidal anti - inflammatory drugs(NSAIDS) and ice treatments can relieve pain. Ice packs applied for 20 minutes three times a day may help. A sling is never used, because adhesive capsulitis can result from immobilization.

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Effects of Acetaminophen on Reproductive Activities in Male Golden Hamsters

  • Chae Yeon Lee;Hyunji Hwang;Jin-Soo Park;Sung-Ho Lee;Chang Eun Park;Yong-Pil Cheon;Donchan Choi
    • Development and Reproduction
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    • v.27 no.1
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    • pp.25-37
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    • 2023
  • Acetaminophen [Paracetamol, N-acetyl-para-aminophenol (APAP)] is a common over-the-counter analgesic agent as nonsteroidal anti-inflammatory drugs (NSAIDs). The high doses or the long-term treatment of acetaminophen via usual gavage feeding resulted in damage of testicles that presented recoverable impairment, as well as liver and kidney. The influence of acetaminophen was examined in male golden hamsters treated with acetaminophen-containing diet feeding. They were divided into 5 groups and subjected to this experiment for 4 weeks: animals housed in long photoperiod (LP) as LP control, animals housed in short photoperiod (SP) for 4 weeks as SP control (SP4), and groups of animals treated with low, middle, and high concentrations of acetaminophen (Low, Middle, High groups). Also animals housed in SP for 8 weeks were included (SP8) to contrast testicular activities, if necessary. As results, spermatozoa filled the seminiferous tubules of the testicles of animals in LP control and SP4 groups. The aspects were seen in the animals taken diets of low and middle doses of acetaminophen. The animals who fed high dose of acetaminophen showed large or small testicles. The large testicles displayed all germ cells at the steps of spermatogenesis. The small testicles presented no sperm as the animals housed in SP for 8 weeks. Thus these results indicate that acetaminophen invokes the antigonadal effects and accelerates the regressing process of the testicles in the animals compared to the animals exposed to SP.

Skin Permeation and Periodontits Alleviation Effect of Hydrogel Containing Ketorolac Tromethamine and Hydrolysis Products of Gardeniae Fructus (케토롤락트로메타민과 치자가수분해물이 함유된 Hydrogel 제의 피부투과 및 치주염완화효과)

  • Kim, Mi-Jeong
    • Journal of dental hygiene science
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    • v.5 no.3
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    • pp.113-117
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    • 2005
  • After producing 4 kinds of hydrogel materials by mixing the composite preparation in Gardeniae Fructus extracts with ketorolac tromethamine, which is NSAIDs (nonsteroidal anti-inflammatory drugs), through the experiment of measurement in the tensile strength, in the skin permeation, and in the periodontal-pocket reduction rate, the following conclusions were obtained. 1. The tensile strength of a drug indicated the tensile strength 3.5-fold higher compared to the control group, in KGH gel B. 2. The skin-permeation volume in ketorolac tromethamine was highest with $105.62{\mu}m/cm^2$ in KGH gel B for 8 hours, and the permeation volume in geniposide was relatively high with $73.8{\mu}m/cm^2$ in KGE gel A, but the permeation volume in genipin, which is the hydrolysis, represented the highest permeation amount with $50.17{\mu}m/cm^2$ in KGH gel B. 3. In terms of the periodontal-pocket reduction rate, after 4 weeks, KGE gel A showed the falling rate of 23.85% compared to the control group, but did not indicate the significant difference, and KGH gel B represented the reduction rate of 29.46% compared to the control group, thus it indicated the significantly treatment effect.

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Prognostic Significance of Cyclooxygenase-2(COX-2) Expression in Primary, Resected Non-Small Cell Lung Cancer (원발성 비소세포폐암조직에서 Cyclooxygenase-2 발현의 예후인자로서의 의의)

  • Kim, Hak Ryul;Yang, Sei Hoon;Jeong, Eun Taik
    • Tuberculosis and Respiratory Diseases
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    • v.56 no.2
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    • pp.169-177
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    • 2004
  • Background : Cyclooxygenase is the main target enzyme for the nonsteroidal anti inflammatory drugs (NSAIDs) that have been shown to suppress carcinogenesis in both experimental models and epidemiological studies. COX-2 plays an important role in solid tumor growth, invasiveness and angiogenesis, through, in part, the synthesis of prostaglandins, such as prostaglandin E2 (PGE2). In this study, the prognostic significance of an increase in COX-2 expression in lung cancer samples was evaluated. Material and Methods : The expression of COX-2, by immunohistochemistry, was studied in paraffin-embedded tumor blocks obtained from 84 patients(male 67, female 17, with a mean age of 63, ranging from 34 to 84 years) who had undergone surgery at Wonkwang University Hospital, between 1997 and 2002. For the evaluation of the relationships between COX-2 expression, and the clinical stage, metastasis to lymph nodes and survival, those cases showing the respective antigen expression in >10% of the tumor cells were considered positive. Result : Of the 84 patients, 61 (73%) exhibited more than 10% COX-2 immunoreactivities in the tumor and normal cells, whereas the remaining 23 showed no increase in the expression of COX-2. There was no significant relationship between the increased expression of COX-2 and the disease stage(p=0.1002) or cell type(p=0.152). The median survival was longer for the patients with a negative, compared to positive, COX-2 expression(36 compared to 24 months, p<0.05). The two year-survival rate was also higher in the patients with a negative COX-2 expression (78%) than those with a positive expression (47%, Kaplan-Meier, Log Rank, p < 0.05). Conclusion : The median survival was longer in the patients with a negative, compared to positive, COX-2 expression was longer than those with positive COX-2, having undergone complete resection due to primary non-small cell lung cancer.

Conservative Treatment of Impingement Syndrome and Rotator Cuff Tear (충돌 증후군 및 회전근 개 파열의 보존적 치료)

  • Jung, Hong Jun;Jeon, In-Ho;Chun, Jae Myeung
    • Journal of the Korean Arthroscopy Society
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    • v.16 no.1
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    • pp.79-86
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    • 2012
  • The conservative treatment for impingement and rotator cuff tear includes rest, nonsteroidal anti-inflammatory drugs (NSAIDs), local steroid injection and physiotherapy depending on the purpose to relieve the pain and inflammation, in addition, stretching exercise to recover flexibility and strengthening exercise to recover the function could be used. When these conservative treatments are divided into multiple steps, the first one contains pain relief, modification of daily activity and stretching exercise. Second step includes strengthening exercise of the anterior/posterior cuff and peri-scapular muscles and eventually. The third step includes training program to return to job, housework and hobby activities and maintain. Thus, the key of these step wise approach for the treatment of impingement and rotator cuff tear is exercise program. Understanding of various exercise program and apply to the patients properly is most important for the conservative treatment of impingement and cuff tear.

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