• Title/Summary/Keyword: anti-bleeding

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Quantitation and Radical Scavenging Activity Evaluation of Iridoids and Phenylethanoids from the Roots of Phlomis umbrosa (Turcz.) using DPPH Free Radical and DPPH-HPLC Methods, and their Cytotoxicity

  • Le, Duc Dat;Nguyen, Duc Hung;Zhao, Bing Tian;Min, Byung Sun;Song, Si Whan;Woo, Mi Hee
    • Natural Product Sciences
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    • v.25 no.2
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    • pp.122-129
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    • 2019
  • The roots of Phlomis umbrosa (Turcz.) (Phlomidis Radix) have been traditionally used to treat cold, reduce swelling and staunch bleeding. Four iridoids (1 - 3 and 5) and six phenylethanoid derivatives (4, and 6 - 10) were isolated from the roots of P. umbrosa. A simple, sensitive, and reliable analytical HPLC/PDA method was developed, validated, and applied to determine 10 marker compounds in Phlomidis Radix. Furthermore, the isolates were evaluated for cytotoxic and anti-oxidant activities as well as DPPH-HPLC method. Among them, compounds 4 and 6 - 9 displayed potent anti-oxidant capacities using DPPH assay with $IC_{50}$ values of $27.7{\pm}2.4$, $10.2{\pm}1.1$, $18.0{\pm}0.8$, $19.1{\pm}0.3$, and $19.9{\pm}0.6{\mu}M$, and compounds 6, 8, and 9 displayed significant cytotoxic activity against HL-60 with $IC_{50}$ values of $35.4{\pm}3.1$, $18.6{\pm}2.0$, and $42.9{\pm}3.0{\mu}M$, respectively.

Role of endoscopy in gastroesophageal reflux disease

  • Daniel Martin Simadibrata;Elvira Lesmana;Ronnie Fass
    • Clinical Endoscopy
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    • v.56 no.6
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    • pp.681-692
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    • 2023
  • In general, gastroesophageal reflux disease (GERD) is diagnosed clinically based on typical symptoms and/or response to proton pump inhibitor treatment. Upper gastrointestinal endoscopy is reserved for patients presenting with alarm symptoms, such as dysphagia, odynophagia, significant weight loss, gastrointestinal bleeding, or anorexia; those who meet the criteria for Barrett's esophagus screening; those who report a lack or partial response to proton pump inhibitor treatment; and those with prior endoscopic or surgical anti-reflux interventions. Newer endoscopic techniques are primarily used to increase diagnostic yield and provide an alternative to medical or surgical treatment for GERD. The available endoscopic modalities for the diagnosis of GERD include conventional endoscopy with white-light imaging, high-resolution and high-magnification endoscopy, chromoendoscopy, image-enhanced endoscopy (narrow-band imaging, I- SCAN, flexible spectral imaging color enhancement, blue laser imaging, and linked color imaging), and confocal laser endomicroscopy. Endoscopic techniques for treating GERD include esophageal radiofrequency energy delivery/Stretta procedure, transoral incisionless fundoplication, and endoscopic full-thickness plication. Other novel techniques include anti-reflux mucosectomy, peroral endoscopic cardiac constriction, endoscopic submucosal dissection, and endoscopic band ligation. Currently, many of the new endoscopic techniques are not widely available, and their use is limited to centers of excellence.

Anti-inflammatory Effects of Wiryeong-tang Mix Soft Extract (위령탕 혼합단미연조엑스의 항염증 효과)

  • Kim, Myoung-Jin;Kim, Se-Jin;Nam, Won-Hee;Leem, Hyun-Hee;Jeon, Young-Hee;Son, Su-Mi;Kim, Jung-Ok
    • Herbal Formula Science
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    • v.28 no.4
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    • pp.339-349
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    • 2020
  • Objectives : Wiryeong-tang (WRT) is a traditional herbal medicine used to treat kidney-related diseases. However, the anti-inflammatory and anti-gastritis effect of Wiryeong-tang was not well known. Therefore, we experimented to confirmed the anti-inflammatory and anti-gastritis effects of Wiryeong-tang. Methods : The RAW 264.7 cells were pre treated with Wiryeong-tang mix soft extract (WRT-mse; 50, 100 and 200 ㎍/mL) for 1 hrs, and then incubated with lipopolysaccharide (LPS; 500 ng/mL). Cell viability was measured by the MTT method, and nitric oxide (NO) was measured with griess reagent. In addition, pro-inflammatory cytokines were measured by enzyme-linked immunosorbent assay (ELISA) and reverse transcription-polymerase chain reaction (RT-PCR). For anti-gastritis effect in vivo, acute gastritis was induced using 150 mM HCl/60% ethanol used ICR mice. WRT-mse (133 mg/kg) was pre treated for 3 days and then treated with 150 mM HCl/60% ethanol 1 hrs later. Then gastritis was observed and inflammatory cytokines in the gastric tissue was measured. Results : The 8 marker components of the WRT-mse were determined by simultaneous analysis using HPLC. WRT-mse was not toxic and inhibited pro-inflammatory cytokines such as IL-1β, IL-6 and TNF-α at NO production, protein and mRNA levels. Also, it was confirmed that WRT-mse improved bleeding and edema in gastritis, and suppresses inflammatory cytokines. Conclusion : In summary, our results suggest that the treatment of the WRT-mse reduced and improved the 150 mM HCl/60% ethanol induced acute gastritis and the inflammation caused by LPS stimulation in RAW 264.7 cells. Therefore, this study may provide useful drug or clinical evidence for WRT-mse to prevent inflammation.

Studies on the Anti-anemic Action of Melanterite (녹반(綠礬)의 항빈혈작용(抗貧血作用)에 관한 연구(硏究))

  • Cho, Bo-Sun;Rho, Young-Soo;Hong, Nam-Doo;Kim, Shin-Kyu
    • Korean Journal of Pharmacognosy
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    • v.19 no.2
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    • pp.111-119
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    • 1988
  • Melanterite(Green vitriol) is a kind of mineral crude drug which has been used for a hemostatic and hematic, and it contained iron, zinc, magnesium, copper, calcium and manganese etc., and the contents of those matals were 14.34%, 1.21%, 0.91%, 0.41%, 0.37% and 0.15%, respectively. In the acute toxicity in mice its $LD_{50}$ was over 3,000 mg/kg and 2,000 mg/kg by the oral and subcutaneous administration, respectively, but the $LD_50$ by the intraperitoneal administration was 1,810 mg/kg. On the experimental anemia induced by the free bleeding in rabbits and by the phenylhydrazine in rats the reduced RBC, hemoglobin and hematocrit were rapidly recovered.

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Contralateral Intraparenchymal Hemorrhage Following Aneurysmal Clipping

  • Kim, Jae-Hoon;Yi, Hyeong-Joong
    • Journal of Korean Neurosurgical Society
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    • v.43 no.3
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    • pp.162-164
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    • 2008
  • Post-clipping intraparenchymal hemorrhage of the contralateral hemisphere is a very unusual phenomenon in a patient with aneurysmal subarachnoid hemorrhage, unless there is an underlying condition. We report a complicated case of 47-year-old man, who underwent uneventful clipping of ruptured aneurysm and experienced vasospasm two weeks later. Vasospasm was treated by intra-arterial nimodipine and systemic hyperdynamic therapy. One week thereafter, he became unconscious due to intraparenchymal hemorrhage on the anterior border-zone of contalateral hemisphere, but intraoperative and pathologic findings failed to disclose any vascular anomaly. We suggest that the anti-spastic regimens cause local hemodynamic redistribution through the vasodilatory effect and in turn, resulted in such an unexpected bleeding.

Naproxen-induced Immune Thrombocytopenia -A case report- (Naproxen에 의해 유발된 중증 면역성 혈소판 감소증 -증례보고-)

  • Kim, Cheol Kun;Jang, In Su;Lee, Jun Hak;Kwon, Young Eun;Park, Sang Chul
    • The Korean Journal of Pain
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    • v.19 no.2
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    • pp.285-287
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    • 2006
  • Hundreds of drugs have been implicated as the causes of antibody-mediated thrombocytopenia. Naproxen is a commonly used nonsteroidal anti-inflammatory drug, and it is generally considered to be safe with few hematological side effects such as thrombocytopenia. In this case, severe thrombocytopenia associated with petechia and epistaxis appeared after initiation of naproxen therapy in the 59-year-old man. We report here on a case of severe thrombocytopenia that was recognized at 10 days after the use of naproxen, and the patient rapidly recovered to a normal platelet count without bleeding symptoms or any complications, although immunoglobulin or steroid was not used.

Anti-platelet Effects of Mixtures of Onion and Aloe Extract (양파와 알로에 복합물이 혈소판 응집에 미치는 영향)

  • Lee, Bo Kyung;Lee, Do-Seop;Ha, Soyoung;Park, Se Won;Jung, Yi-Sook
    • YAKHAK HOEJI
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    • v.58 no.5
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    • pp.322-327
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    • 2014
  • In this study, we investigated whether the mixtures of onion water extract and aloe ethanol extracts have antiplatelet activities. The mixtures inhibited collagen- and thrombin-induced rat platelet aggregation in vitro. Additionally, the oral administration of the mixtures inhibited platelet aggregation induced by collagen ex vivo but not prolonged mouse tail vein bleeding time in vivo. These results suggest that the combination of onion and aloe extracts has a potential to be a preventive agent against platelet-mediated disorders.

Synthesis of Novel 3-(H or aralkyl)-1-phenyl-5-(p-H or halo)phenyl-2-thiohydantoins as Selective COX-2 Inhibitors

  • Park, Hae-Sun;Kim, Nan-Young;Choi, Hee-Jeon;Park, Eun-Hee;park, Myung-Sook;Lee, Myung-Sook;Shin, Hea-Soon;Kwon, Soon-Kyoung
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.188.3-189
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    • 2003
  • Nonsteriodal antiinflammatory drugs(NSAIDs) are widely used to treat pain, fever, and inflammatory conditions including osteoarthritis. But chronic patients suffer from gastrointestinal disturbances such as discomfort, nausea, peptic ulcer and severe bleeding because NSAIDs inhibit not only COX-2 associated with anti-inflammatory activity, but also COX-l accompanied with side effects in the stomach and kidney. Therefore, in this study, we designed a new 2-thiohydantoin derivatives as selective COX-2 inhibitors is that the 5-membered heterocycle ring is substituted with two aryl groups. (omitted)

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Synthesis of selective COX-2 inhibitors: Novel 1.5-diarylhydantoins via cyclization of methyl $\alpha$-aminoacetates with aralkyl isocyanate

  • Choi, Hee-Jeon;Park, Hae-Sun;Park, Myoung-Sook;Kwon, Soon-Kyoung
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.343.1-343.1
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    • 2002
  • Nonsteroidal antiinflammatory drugs(NSAIDs) are widely used to treat pain. fever and inflammatory condition. But chronic-disease patients suffer from gastro-intestinal disturbances such as discomfort. nausea. peptic ulcer and severe bleeding because NSAIDs inhibit not only COX-2 associated with anti-inflammatory activity but also COX-1 associated with adverse gastro-intestinal effects. On the basis of this fact. specific COX-2 inhibitors such as celecoxib and rofecoxib are introduced in the drug market. (omitted)

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Effect of Cirsii Japonici Herba on LPS-induced Inflammation in Mouse BV2 Microglial cells (대계(大薊)가 LPS로 유도된 Mouse BV2 Microglial cells의 염증반응에 미치는 영향)

  • Kim, Young-Sun;Lee, Seoung-Geun;Lee, Key-Sang
    • The Journal of Internal Korean Medicine
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    • v.29 no.4
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    • pp.1048-1060
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    • 2008
  • Cirsii Japonici Herba(CJ) is a wild perennial herb found in many areas of Korea as well as China and Japan, which has been used to treat bleeding and inflammation. Silibinin is the main flavonoid extracted from milk thistle (Cirsii Japonici Herba). It exhibits potent antioxidant activity and anti-inflammatory effect. In this study, the effect of CJ and silibinin extract on lipopolysaccharide-induced inflammation was investigated using MTS assay, RT-PCR, western blot, and nitric oxide detection on mouse BV2 microglial cell lines. In the present results, CJ and silibinin extract suppressed nitric oxide production by inhibiting the lipopolysaccharide-stimulated enhancement of COX-2 and iNOS gene expression in BV2 cells. Moreover, CJ and silibinin also repressed some lipopolysaccharide-induced signaling molecules. Importantly, catalase-induced COX-2 and iNOS expression needed activations of $NF-{\kappa}B$, PI3K/Akt, and MAPK, which were important for the transcriptional up-regulation of COX-2 and iNOS. CJ and silibinin interaction on BV2 cells down-regulated $NF-{\kappa}B$-dependent proinflammatory cytokine (IL-2,IL-6) expression. They are involved in the regulation of inflammatory responses. These data shows that CJ and silibinin exerts anti-inflammatory and analgesic effects, probably by suppression of COX-2 and iNOS synthase expression in BV2 microglial cells.

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