{"title":"Bleeding Complication in a Patient with Concomitant Use of Rivaroxaban and Saffron Supplement: a Case Report.","authors":"M. Daei, H. Khalili, Zinat Heidari","doi":"10.21203/rs.3.rs-579040/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-579040/v1","url":null,"abstract":"BACKGROUND Direct oral anticoagulants (DOACs) carry a lower potential risk of food/herb and drug interactions compared with oral vitamin K antagonists. However, as a new class of medications, drug interactions of DOACs have not been fully known. CASE PRESENTATION We herein present the case of a 64-year old male with the complaint of acute onset epistaxis and bleeding gums following the concomitant use of rivaroxaban and saffron supplement. It seems that coadministration of DOACs and saffron supplements should be avoided due to the potential drug-herbal interactions and possible risk of subsequent bleeding complications. CONCLUSION However, further larger scale surveillance studies are needed to confirm the findings and assess the clinical significance.","PeriodicalId":93925,"journal":{"name":"Cardiovascular & hematological disorders drug targets","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84468524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Protective Effects of TRPV1 Activation Against Cardiac Ischemia/Reperfusion Injury is Blunted by Diet-Induced Obesity","authors":"Beihua Zhong, Shuangtao Ma, Donna H. Wang","doi":"10.2174/1871529X19666190912152041","DOIUrl":"https://doi.org/10.2174/1871529X19666190912152041","url":null,"abstract":"Background Activation of Transient Receptor Potential Vanilloid Subtype 1 (TRPV1) channels protects the heart from Ischemia/Reperfusion (I/R) injury through releasing Calcitonin Gene-Related Peptide (CGRP) and Substance P (SP). The current study aimed to study the cardioprotective effects of TRPV1 in obesity. Methods TRPV1 gene knockout (TRPV1-/-) and Wild-Type (WT) mice were Fed a High-Fat Diet (HFD) or a control diet or for 20 weeks, and then the hearts were collected for I/R injury ex vivo. The hearts were mounted on a Langendorff apparatus and subjected to ischemia (30 min) and reperfusion (40 min) after incubated with capsaicin (10 nmol/L), CGRP (0.1 µmol/L) and SP (0.1 µmol/L). Then, Coronary Flow (CF), left ventricular peak positive dP/dt (+dP/dt), Left Ventricular Developed Pressure (LVDP) and Left Ventricular End-Diastolic Pressure (LVEDP) were measured. Results HFD intake remarkably reduced CF, +dP/dt and LVDP and elevated LVEDP in both strains (P<0.05). Treatment with capsaicin decreased infarct size, increased CF, +dP/dt and LVDP, and decreased LVEDP in WT mice on control diet (P<0.05), but did not do so in other three groups. Treatment with CGRP and SP decreased infarct size in both strains fed with control diet (P<0.05). In contrast, not all the parameters of cardiac postischemic recovery in HFD-fed WT and TRPV1-/- mice were improved by CGRP and SP. Conclusion These results suggest that HFD intake impairs cardiac postischemic recovery. HFD-induced impairment of recovery is alleviated by CGRP in both strains and by SP only in TRPV1-/- mice, indicating that the effects of CGRP and SP are differentially regulated during HFD intake.","PeriodicalId":93925,"journal":{"name":"Cardiovascular & hematological disorders drug targets","volume":"13 1","pages":"122 - 130"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79648103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fatemeh Sayyadipour, N. Amirizadeh, A. Oodi, Masoud Khalili, Fakhredin Saba
{"title":"Red Blood Cells are Appropriate Carrier for Coagulation Factor VIII","authors":"Fatemeh Sayyadipour, N. Amirizadeh, A. Oodi, Masoud Khalili, Fakhredin Saba","doi":"10.2174/1871529X19666190918141859","DOIUrl":"https://doi.org/10.2174/1871529X19666190918141859","url":null,"abstract":"Aims Factor VIII (FVIII) replacement therapy remains a primary treatment for hemophilia A, however, the development of FVIII antibodies (inhibitors) and short half-life of the FVIII products are the major complications. Erythrocytes may prevent rapid removal of drugs from plasma. Erythrocytes are biocompatible and non-immunogenic drug delivery. In this study, in vitro activity of FVIII encapsulated by human erythrocytes was investigated. Methods FVIII was loaded into erythrocytes using the hypo-osmotic dialysis technique. FVIII activity assay has been analyzed using Activated Partial Thromboplastin Time (APTT). Presence of FVIII on erythrocytes was detected by western blotting and flowcytometry using specific monoclonal antibody (abcam, U.K) against FVIII. Moreover, the osmotic fragility and hematologic parameters of FVIII-loaded carrier erythrocytes were measured. Results Our results indicated that FVIII could not cross the membrane, where plenty of FVIII was found on the surface of the carrier erythrocyte. Flow cytometery results showed that 11% of the loaded carrier erythrocytes was positive for FVIII protein on their surface. The greatest activation of FVIII in both groups including lysate and non-lysate FVIII-loaded RBCs was observed on the first day, and the coagulant activity of this factor was gradually reduced on days 3 and 5. In 1:50 dilution of both groups, significant differences in FVIII activity were observed in 1:50 dilution of both groups, especially on the 5th day. Conclusion This study aims to introduce erythrocytes as appropriate carriers for FVIII to prolong the dosing intervals in the effective and safe levels for a relatively longer time.","PeriodicalId":93925,"journal":{"name":"Cardiovascular & hematological disorders drug targets","volume":"24 1","pages":"131 - 137"},"PeriodicalIF":0.0,"publicationDate":"2020-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88503928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Mahjoob, Seyed A. Sheikholeslami, Morvarid Dadras, Hamdollah Mansouri, Mahshid Haghi, Mohammadreza Naderian, Leila Sadeghi, M. Tabary, I. Khaheshi
{"title":"Prognostic Value of Cardiac Biomarkers Assessment in Combination with Myocardial 2D Strain Echocardiography for Early Detection of Anthracycline-Related Cardiac Toxicity","authors":"M. Mahjoob, Seyed A. Sheikholeslami, Morvarid Dadras, Hamdollah Mansouri, Mahshid Haghi, Mohammadreza Naderian, Leila Sadeghi, M. Tabary, I. Khaheshi","doi":"10.2174/1871529X19666190912150942","DOIUrl":"https://doi.org/10.2174/1871529X19666190912150942","url":null,"abstract":"Background: Anthracyclines, a widely used chemotherapy agent with a definite survival improvement, can result in cardiac toxicity presenting with HF (heart failure). Objective: We aim to assess the predictive value of cardiac biomarkers assessment in combination with myocardial two-dimensional strain echocardiography for early detection of cardiac toxicity in patients who underwent Anthracycline-based chemotherapy. Methods: Fifty-two consecutive adult patients scheduled to undergo the first course of Anthracycline-based chemotherapy were subjected to the study. All the patients underwent highly sensitive 2D echocardiographic evaluation before the treatment, 4 and 12 weeks after completion of first-course chemotherapy. Longitudinal and segmental strains were measured. Serum levels of High-sensitive cardiac troponin I (hscTn-I) and N-terminal-pro-BNP (NT-proBNP) were also assessed before the initiation and 3 weeks after completion of first-course chemotherapy. Results: Fifteen patients (28.8%) revealed a decrease in LVEF (Left Ventricular Ejection Fraction) throughout the evaluations, while just 5 patients met the criteria of cardiac toxicity (9.6%). AUC for Global Longitudinal Strain (GLS) ROC curve at 4 weeks of follow-up was calculated to be 0.968. Inferoseptal Systolic Longitudinal Strain (SLS) had the highest AUC value (AUC: 0.934) among different wall SLS. LVESD (Left Ventricular End-Systolic Diameter) at first and second evaluation could predict the risk of cardiac toxicity among LVESD, LVEDD (Left Ventricular End Diastolic Diameter) and LVEDV (Left Ventricular End-Diastolic Volume). Among cardiac biomarkers, hs-cTnI had higher sensitivity, while NT-proBNP had higher specificity for cardiac toxicity. Conclusion: This study has shown that hs-cTnI with good sensitivity can predict cardiac toxicity in Anthracycline-based chemotherapy receiver. The use of strain with speckle echocardiography method has a prognostic value; however, both longitudinal and segmental strain should be assessed. Lateral and inferoseptal SLS (Segmental Longitudinal Strain) are specific markers of cardiac toxicity in the course of anthracycline-related cardiac toxicity.","PeriodicalId":93925,"journal":{"name":"Cardiovascular & hematological disorders drug targets","volume":"59 1","pages":"74 - 83"},"PeriodicalIF":0.0,"publicationDate":"2020-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76677790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Y. Kamkar-Del, R. Mohebbati, M. Hoseini, A. Khajavirad, M. Shafei, H. Rakhshande
{"title":"Ethyl acetate and aqueous fractions of Ziziphus jujuba prevent acute hypertension induced by angiotensin II in rats.","authors":"Y. Kamkar-Del, R. Mohebbati, M. Hoseini, A. Khajavirad, M. Shafei, H. Rakhshande","doi":"10.2174/1871529X19666191119141400","DOIUrl":"https://doi.org/10.2174/1871529X19666191119141400","url":null,"abstract":"BACKGROUND\u0000Antihypertensive effect of Ziziphus jujube (ZJ) has been reported previously.\u0000\u0000\u0000OBJECTIVE\u0000The present study investigates the effect of two ethyl acetate (polar and semi-polar compound) and aqueous fractions (polar compound) of ZJ on cardiovascular parameters in acute hypertension induced by angiotensin II(AngII).\u0000\u0000\u0000METHODS\u0000Rats randomly were divided into as following groups (n=7 in each group): Control, AngII (50 ng/kg), Losartan (Los, 30 mg/kg) + AngII, ethyl acetate fraction (EA150 and EA300 mg/kg) + AngII and aqueous fraction (A150 and A300 mg/kg) + AngII. Treated rats received Los and ZJ fractions for four weeks orally and in experiment day (28th) received AngII intravenously. In all groups' systolic blood pressure (SBP), heart rate (HR) and mean arterial pressure (MAP) were recorded throughout the experiment after cannulation of femoral artery via power lab system.\u0000\u0000\u0000RESULTS\u0000In AngII group SBP and MAP significantly increased (P<0.001) and HR decreased compared to the control. The SBP and MAP in both doses (150 and 300 mg/kg) of two fractions significantly were reduced in comparison with the AngII group (P<0.05, P<0.001, respectively). Bradycardia induced by AngII also decreased so was not significant than control. Comparison the effects of two fractions revealed that both fractions reduced cardiovascular responses induced by AngII but ethyl acetate is more effective than aqueous fraction.\u0000\u0000\u0000CONCLUSION\u0000This study indicates that the both fractions of the ZJ extract have beneficial effect on AngII hypertensive in rat. Because the most compounds of two fractions are polar, we suggested that antihypertensive effects of ZJ is mediated by polar compounds.","PeriodicalId":93925,"journal":{"name":"Cardiovascular & hematological disorders drug targets","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86678819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}