Pharmacology Research & Perspectives最新文献

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Metabolite profiling of foslevodopa/foscarbidopa in plasma of healthy human participants by LC‐HRMS indicates no major differences compared to administration of levodopa/carbidopa intestinal gel 通过 LC-HRMS 对健康人血浆中的磷左旋多巴/磷卡比多巴进行代谢物分析表明,与服用左旋多巴/卡比多巴肠道凝胶相比没有重大差异
IF 2.6 4区 医学
Pharmacology Research & Perspectives Pub Date : 2024-04-10 DOI: 10.1002/prp2.1190
John P. Savaryn, Richard L. Smith, Matthew Rosebraugh, Melina Neenan, Richard Burton, Kennan Marsh, David Wagner
{"title":"Metabolite profiling of foslevodopa/foscarbidopa in plasma of healthy human participants by LC‐HRMS indicates no major differences compared to administration of levodopa/carbidopa intestinal gel","authors":"John P. Savaryn, Richard L. Smith, Matthew Rosebraugh, Melina Neenan, Richard Burton, Kennan Marsh, David Wagner","doi":"10.1002/prp2.1190","DOIUrl":"https://doi.org/10.1002/prp2.1190","url":null,"abstract":"Analysis was conducted to compare levodopa/carbidopa pharmacokinetics and drug‐related material in plasma of healthy participants after receiving a continuous infusion of Levodopa/Carbidopa Intestinal Gel (LCIG) to a continuous subcutaneous infusion of foslevodopa/foscarbidopa. Study samples were from a randomized, open‐label, 2‐period crossover study in 20 healthy participants. Participants received either 24‐h foslevodopa/foscarbidopa SC infusion to the abdomen or LCIG delivered for 24 h to the jejunum through a nasogastric tube with jejunal extension. Serial blood samples were collected for PK. Comparability of the LD PK parameters between the two treatment regimens was determined. Selected plasma samples were pooled per treatment group and per time point for metabolite profiling. LC–MS<jats:sup>n</jats:sup> was performed using high‐resolution mass spectrometry to identify drug‐related material across the dosing regimens and time points. The LD PK parameter central values and 90% confidence intervals following the foslevodopa/foscarbidopa subcutaneous infusion were between 0.8 and 1.25 relative to the LCIG infusion. With LCIG administration, LD, CD, 3‐OMD, DHPA, DOPAC, and vanillacetic acid were identified in plasma at early and late time points (0.75 and 24 h); the metabolic profile after administration of foslevodopa/foscarbidopa demonstrated the same drug‐related compounds with the exception of the administered foslevodopa. 3‐OMD and vanillacetic acid levels increased over time in both treatment regimens. Relative quantification of LC–MS peak areas showed no major differences in the metabolite profiles. These results indicate that neither the addition of monophosphate prodrug moieties nor SC administration affects the circulating metabolite profile of foslevodopa/foscarbidopa compared to LCIG.","PeriodicalId":19948,"journal":{"name":"Pharmacology Research & Perspectives","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140565237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ursodeoxycholic acid may protect from severe acute respiratory syndrome coronavirus 2 Omicron variant by reducing angiotensin‐converting enzyme 2 熊去氧胆酸可通过减少血管紧张素转换酶 2 保护人体免受严重急性呼吸系统综合征冠状病毒 2 Omicron 变体的感染
IF 2.6 4区 医学
Pharmacology Research & Perspectives Pub Date : 2024-04-04 DOI: 10.1002/prp2.1194
Kyungmin Lee, Yujeong Na, Minjin Kim, Dongjin Lee, Jongseo Choi, Gwanyoung Kim, Min‐Soo Kim
{"title":"Ursodeoxycholic acid may protect from severe acute respiratory syndrome coronavirus 2 Omicron variant by reducing angiotensin‐converting enzyme 2","authors":"Kyungmin Lee, Yujeong Na, Minjin Kim, Dongjin Lee, Jongseo Choi, Gwanyoung Kim, Min‐Soo Kim","doi":"10.1002/prp2.1194","DOIUrl":"https://doi.org/10.1002/prp2.1194","url":null,"abstract":"The SARS‐CoV‐2 caused COVID‐19 pandemic has posed a global health hazard. While some vaccines have been developed, protection against viral infection is not perfect because of the urgent approval process and the emergence of mutant SARS‐CoV‐2 variants. Here, we employed UDCA as an FXR antagonist to regulate ACE2 expression, which is one of the key pathways activated by SARS‐CoV‐2 Delta variant infection. UDCA is a well‐known reagent of liver health supplements and the only clinically approved bile acid. In this paper, we investigated the protective efficacy of UDCA on Omicron variation, since it has previously been verified for protection against Delta variant. When co‐housing with an Omicron variant‐infected hamster group resulted in spontaneous airborne transmission, the UDCA pre‐supplied group was protected from weight loss relative to the non‐treated group at 4 days post‐infection by more than 5%–10%. Furthermore, UDCA‐treated groups had a 3‐fold decrease in ACE2 expression in nasal cavities, as well as reduced viral expressing genes in the respiratory tract. Here, the data show that the UDCA serves an alternative option for preventive drug, providing SARS‐CoV‐2 protection against not only Delta but also Omicron variant. Our results of this study will help to propose drug‐repositioning of UDCA from liver health supplement to preventive drug of SARS‐CoV‐2 infection.","PeriodicalId":19948,"journal":{"name":"Pharmacology Research & Perspectives","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140565096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Progress in the treatment of diabetic cardiomyopathy, a systematic review. 糖尿病心肌病治疗进展,系统回顾。
IF 2.9 4区 医学
Pharmacology Research & Perspectives Pub Date : 2024-04-01 DOI: 10.1002/prp2.1177
Yiyi Shou, Xingyu Li, Quan Fang, Aqiong Xie, Yinghong Zhang, Xinyan Fu, Mingwei Wang, Wenyan Gong, Xingwei Zhang, Dong Yang
{"title":"Progress in the treatment of diabetic cardiomyopathy, a systematic review.","authors":"Yiyi Shou, Xingyu Li, Quan Fang, Aqiong Xie, Yinghong Zhang, Xinyan Fu, Mingwei Wang, Wenyan Gong, Xingwei Zhang, Dong Yang","doi":"10.1002/prp2.1177","DOIUrl":"10.1002/prp2.1177","url":null,"abstract":"<p><p>Diabetic cardiomyopathy (DCM) is a condition characterized by myocardial dysfunction that occurs in individuals with diabetes, in the absence of coronary artery disease, valve disease, and other conventional cardiovascular risk factors such as hypertension and dyslipidemia. It is considered a significant and consequential complication of diabetes in the field of cardiovascular medicine. The primary pathological manifestations include myocardial hypertrophy, myocardial fibrosis, and impaired ventricular function, which can lead to widespread myocardial necrosis. Ultimately, this can progress to the development of heart failure, arrhythmias, and cardiogenic shock, with severe cases even resulting in sudden cardiac death. Despite several decades of both fundamental and clinical research conducted globally, there are currently no specific targeted therapies available for DCM in clinical practice, and the incidence and mortality rates of heart failure remain persistently high. Thus, this article provides an overview of the current treatment modalities and novel techniques pertaining to DCM, aiming to offer valuable insights and support to researchers dedicated to investigating this complex condition.</p>","PeriodicalId":19948,"journal":{"name":"Pharmacology Research & Perspectives","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10895687/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139972987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of OCT2-mediated drug-drug interactions between ulotaront and metformin in subjects with schizophrenia. 在精神分裂症患者中评估 OCT2 介导的乌洛他隆与二甲双胍之间的药物相互作用。
IF 2.6 4区 医学
Pharmacology Research & Perspectives Pub Date : 2024-04-01 DOI: 10.1002/prp2.1191
Guangqing Xiao, Hironobu Tsukada, Yu-Luan Chen, Lei Shi, Seth C Hopkins, Gerald R Galluppi
{"title":"Evaluation of OCT2-mediated drug-drug interactions between ulotaront and metformin in subjects with schizophrenia.","authors":"Guangqing Xiao, Hironobu Tsukada, Yu-Luan Chen, Lei Shi, Seth C Hopkins, Gerald R Galluppi","doi":"10.1002/prp2.1191","DOIUrl":"10.1002/prp2.1191","url":null,"abstract":"<p><p>Ulotaront (SEP-363856) is a TAAR1 agonist, with 5-HT1A agonist activity, currently in clinical development for the treatment of schizophrenia. In vitro studies indicate ulotaront is an OCT2-specific inhibitor with IC<sub>50</sub> of 1.27 μM. The primary objective of this study is to determine if a single dose of ulotaront affects the PK of metformin, an index substrate of OCT2, in subjects with schizophrenia. In a randomized, single-blind, 2-period crossover study, 25 adults with schizophrenia received a single dose of metformin-HCl 850 mg (approximately 663 mg metformin) with and without coadministration of 100 mg ulotaront. The plasma samples were analyzed by fully validated LC-MS/MS methods. The primary PK endpoints for metformin were AUC<sub>inf</sub>, AUC<sub>last</sub>, C<sub>max</sub>, and t<sub>max</sub>. The highest-anticipated clinical dose of ulotaront (100 mg) had no statistically significant effect on the PK of a single dose of metformin based on C<sub>max</sub> and AUC<sub>inf</sub>. Geometric least squares mean ratios were 89.98% and 110.63%, respectively, with the 90% confidential interval (CI) for each parameter contained within 80%-125%. Median t<sub>max</sub> was comparable across the treatments. Ulotaront does not act as a perpetrator of OCT2-mediated DDI against metformin. Co-administration of ulotaront is not expected to require dose adjustment of metformin or other drugs cleared by OCT2.</p>","PeriodicalId":19948,"journal":{"name":"Pharmacology Research & Perspectives","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10963303/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140288749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of the cardiac safety of parsaclisib, a selective PI3Kδ inhibitor, in patients with previously treated B-cell malignancies: Results from the CITADEL-101 study 评估帕沙利西(一种选择性 PI3Kδ 抑制剂)对既往接受过治疗的 B 细胞恶性肿瘤患者的心脏安全性:CITADEL-101研究的结果
IF 2.6 4区 医学
Pharmacology Research & Perspectives Pub Date : 2024-02-26 DOI: 10.1002/prp2.1165
Jia Li, Xiaohua Gong, Xing Liu, Xiang Liu, Ke Szeto, Xuejun Chen
{"title":"Evaluation of the cardiac safety of parsaclisib, a selective PI3Kδ inhibitor, in patients with previously treated B-cell malignancies: Results from the CITADEL-101 study","authors":"Jia Li, Xiaohua Gong, Xing Liu, Xiang Liu, Ke Szeto, Xuejun Chen","doi":"10.1002/prp2.1165","DOIUrl":"https://doi.org/10.1002/prp2.1165","url":null,"abstract":"Parsaclisib, a potent and selective phosphatidylinositol 3 kinase δ inhibitor, has been investigated for the treatment of B-cell malignancies and studied in patients with autoimmune diseases and myelofibrosis. The CITADEL-101 study (NCT02018861) assessed safety, tolerability, and preliminary efficacy of parsaclisib in patients with relapsed or refractory non-Hodgkin lymphoma. This study evaluated the cardiac safety of parsaclisib as monotherapy based on data from 72 patients enrolled in the CITADEL-101 study. Time-matched pharmacokinetic and ECG measurements were collected at specified times for 69 patients receiving monotherapy in doses of 5, 10, 15, 20, 30, and 45 mg once daily. Based on the categorical outlier analysis, no dose-dependent effect was observed on the incidence of outliers in QT interval corrected for heart rate (HR) by Fridericia's method (QTcF), HR, or cardiac conduction. Based on central tendency analysis, the least square means (LSMs) (90% confidence interval [CI]) of ΔQTcF from the central tendency analysis ranged from −6.83 (−18.8 to 5.19) to 4.75 ms (0.410–9.09) across dose groups (below 20 ms, the threshold of large QT effects) and was not considered dose dependent. Moreover, the LSMs of ΔHR, ΔPR interval, and ΔQRS interval were minor. From the concentration-ΔQTcF analyses, the predicted ΔQTcF (90% CI) for all dose levels was between 0.365 (−1.75 to 2.48) and 7.87 ms (0.921–14.8), with the highest upper limit of CIs well below 20 ms, and therefore, a large QT/QTc effect was ruled out up to the highest dose level (45 mg) investigated. Overall, parsaclisib at the dose ranges studied did not reveal concentration-dependent effects on change in QTcF and did not have a significant effect on HR or cardiac conduction.","PeriodicalId":19948,"journal":{"name":"Pharmacology Research & Perspectives","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139968334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pharmacology education in the medical curriculum: Challenges and opportunities for improvement. 医学课程中的药理学教育:挑战与改进机会。
IF 2.6 4区 医学
Pharmacology Research & Perspectives Pub Date : 2024-02-01 DOI: 10.1002/prp2.1178
Pius S Fasinu, Teresa W Wilborn
{"title":"Pharmacology education in the medical curriculum: Challenges and opportunities for improvement.","authors":"Pius S Fasinu, Teresa W Wilborn","doi":"10.1002/prp2.1178","DOIUrl":"10.1002/prp2.1178","url":null,"abstract":"<p><p>The knowledge and application of pharmacology is essential for safe prescribing and administration of drugs. In this narrative review, the challenges to pharmacology education in the medical curricula were broadly identified to include issues around content and pedagogies. The increasing number of approved drugs and drug targets, expanding field of pharmacology and the often-changing treatment guidelines and board-defined competencies can make pharmacology education in the medical curriculum daunting. There has been a consensus around the deployment of innovative medical curricula with emphasis on vertical and horizontal integration. This strategy, effective as it has been, presents new challenges to pharmacology education. As a discipline often perceived by students to be hard-to-learn, the future of pharmacology education must include heavy reliance on active learning strategies. The continuing utilization of problem-based, team-based and case-based learning can be complemented with personalized learning which aims to identify the learning gaps in individual students. Technology-inspired student engagement can foster pharmacology learning and retention. Early exposure to pharmacology from premedical preparation through an enduring across-the-level integration can be an effective way to enhance pharmacology learning in the medical curricula.</p>","PeriodicalId":19948,"journal":{"name":"Pharmacology Research & Perspectives","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10869893/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139741733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
2-Deoxyglucose and hydroxychloroquine HPLC-MS-MS analytical methods and pharmacokinetic interactions after oral co-administration in male rats. 雄性大鼠口服 2-脱氧葡萄糖和羟氯喹 HPLC-MS-MS 分析方法和药代动力学相互作用。
IF 2.6 4区 医学
Pharmacology Research & Perspectives Pub Date : 2024-02-01 DOI: 10.1002/prp2.1173
Dongxiao Sun, Sangyub Kim, Deepkamal Karelia, Yibin Deng, Cheng Jiang, Junxuan Lü
{"title":"2-Deoxyglucose and hydroxychloroquine HPLC-MS-MS analytical methods and pharmacokinetic interactions after oral co-administration in male rats.","authors":"Dongxiao Sun, Sangyub Kim, Deepkamal Karelia, Yibin Deng, Cheng Jiang, Junxuan Lü","doi":"10.1002/prp2.1173","DOIUrl":"10.1002/prp2.1173","url":null,"abstract":"<p><p>Our previous work has shown a synergistic tumoricidal efficacy of combining the hexokinase (HK) inhibitor 2-deoxyglucose (2-DG) and the autophagy inhibitor chloroquine (CQ) through intraperitoneal injections on HK2-addicted prostate cancers in animal models. The pharmacokinetic (PK) behaviors of these oral drugs after simultaneous oral administration have not been reported. We developed high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS-MS) analytical methods for 2-DG and the clinically favored drug hydroxychloroquine (HCQ) for sera samples. Using a jugular vein-cannulated male rat model with serial blood collection before and after a single gavage dose of each drug alone or in combination, we examined their PK metrics for drug-drug interactions. The data demonstrated a rapid and complete separation of 2-DG from common monosaccharides by HPLC-MS-MS multi-reaction monitoring. Application of the HPLC-MS-MS 2-DG and HCQ methods to sera samples of nine rats showed a peak time (T<sub>max</sub> ) for 2-DG of 0.5 h after 2-DG alone or with HCQ and identical post-peak half-life of approximately 1 h. With a seemingly bi-modal time course for HCQ, the T<sub>max</sub> for HCQ alone (1.2 h) was faster than that for the combination (2 h; p = .017). After combination dosing, the peak concentration (C<sub>max</sub> ) and area under the curve (AUC<sub>0-4h</sub> ) of 2-DG were decreased by 53.8% (p = .0004) and 53.7% (p = .0001), whereas AUC<sub>0-8h</sub> for HCQ was decreased by 30.8% (p = .0279) from the respective single dosing. Without changing the mean residence time (MRT<sub>0-∞</sub> ) of each drug, the combination affected the apparent volume of distribution (V<sub>d</sub> ) and clearance (CL) of 2-DG, and CL for HCQ without affecting its V<sub>d</sub> . We observed significant negative PK interactions, probably at the intestinal absorption level, between 2-DG and HCQ taken simultaneously by mouth. Future optimization efforts are warranted for their combination regimen for clinical translation.</p>","PeriodicalId":19948,"journal":{"name":"Pharmacology Research & Perspectives","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10829054/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139642684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Epigenetics in obesity: Mechanisms and advances in therapies based on natural products. 肥胖症的表观遗传学:基于天然产品的疗法的机制和进展。
IF 2.6 4区 医学
Pharmacology Research & Perspectives Pub Date : 2024-02-01 DOI: 10.1002/prp2.1171
Peng Chen, Yulai Wang, Fuchao Chen, Benhong Zhou
{"title":"Epigenetics in obesity: Mechanisms and advances in therapies based on natural products.","authors":"Peng Chen, Yulai Wang, Fuchao Chen, Benhong Zhou","doi":"10.1002/prp2.1171","DOIUrl":"10.1002/prp2.1171","url":null,"abstract":"<p><p>Obesity is a major risk factor for morbidity and mortality because it has a close relationship to metabolic illnesses, such as diabetes, cardiovascular diseases, and some types of cancer. With no drugs available, the mainstay of obesity management remains lifestyle changes with exercise and dietary modifications. In light of the tremendous disease burden and unmet therapeutics, fresh perspectives on pathophysiology and drug discovery are needed. The development of epigenetics provides a compelling justification for how environmental, lifestyle, and other risk factors contribute to the pathogenesis of obesity. Furthermore, epigenetic dysregulations can be restored, and it has been reported that certain natural products obtained from plants, such as tea polyphenols, ellagic acid, urolithins, curcumin, genistein, isothiocyanates, and citrus isoflavonoids, were shown to inhibit weight gain. These substances have great antioxidant potential and are of great interest because they can also modify epigenetic mechanisms. Therefore, understanding epigenetic modifications to target the primary cause of obesity and the epigenetic mechanisms of anti-obesity effects with certain phytochemicals can prove rational strategies to prevent the disease and develop novel therapeutic interventions. Thus, the current review aimed to summarize the epigenetic mechanisms and advances in therapies for obesity based on natural products to provide evidence for the development of several potential anti-obesity drug targets.</p>","PeriodicalId":19948,"journal":{"name":"Pharmacology Research & Perspectives","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10828914/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139642685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Inhibition of PDE-4 isoenzyme attenuates frequency and overall contractility of agonist-evoked ureteral phasic contractions. 抑制 PDE-4 同工酶可减弱激动剂诱发的输尿管阶段性收缩的频率和总体收缩力。
IF 2.6 4区 医学
Pharmacology Research & Perspectives Pub Date : 2024-02-01 DOI: 10.1002/prp2.1175
Iris Lim, Taishi Masutani, Hikaru Hashitani, Russ Chess-Williams, Donna Sellers
{"title":"Inhibition of PDE-4 isoenzyme attenuates frequency and overall contractility of agonist-evoked ureteral phasic contractions.","authors":"Iris Lim, Taishi Masutani, Hikaru Hashitani, Russ Chess-Williams, Donna Sellers","doi":"10.1002/prp2.1175","DOIUrl":"10.1002/prp2.1175","url":null,"abstract":"<p><p>The aim of this study was to investigate the functional role of phosphodiesterase enzymes (PDE) in the isolated porcine ureter. Distal ureteral strips were mounted in organ baths and pre-contracted with 5-HT (100 μM). Upon generation of stable phasic contractions, PDE-4 and PDE-5 inhibitors were added cumulatively to separate tissues. PDE-4 inhibitors, such as rolipram (10 nM and greater) and roflumilast (100 nM and greater), resulted in significant attenuation of ureteral contractile responses, while a higher concentration of piclamilast (1 μM and greater) was required to induce a significant depressant effect. The attenuation effect by rolipram was abolished by SQ22536 (100 μM). PDE-5 inhibitors, such as sildenafil and tadalafil, were not nearly as effective and were only able to suppress the 5-HT-induced contractions at higher concentrations of 1 μM. Rolipram significantly enhanced the depressant effect of forskolin, while sodium nitroprusside-induced attenuation of contractile responses remained unchanged in the presence of tadalafil. In summary, our study demonstrates that PDE-4 inhibitors are effective in attenuating 5-HT-induced contractility in porcine distal ureteral tissues, while PDE-5 inhibitors are less effective. These findings suggest that PDE-4 inhibitors, such as rolipram, may hold promise as potential therapeutic agents for the treatment of ureteral disorders attributable to increased intra-ureteral pressure.</p>","PeriodicalId":19948,"journal":{"name":"Pharmacology Research & Perspectives","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10858371/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139712810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The impact of phosphodiesterase-5 inhibition or angiotensin-converting enzyme inhibition on right and left ventricular remodeling in heart failure due to chronic volume overload. 磷酸二酯酶-5抑制剂或血管紧张素转换酶抑制剂对慢性容量超负荷导致的心力衰竭患者左右心室重塑的影响。
IF 2.6 4区 医学
Pharmacology Research & Perspectives Pub Date : 2024-02-01 DOI: 10.1002/prp2.1172
Tereza Tykvartova, Matus Miklovic, Martin Kotrc, Petra Skaroupkova, Ludmila Kazdova, Jaroslava Trnovska, Vojtech Skop, Michal Kolar, Jiri Novotny, Vojtech Melenovsky
{"title":"The impact of phosphodiesterase-5 inhibition or angiotensin-converting enzyme inhibition on right and left ventricular remodeling in heart failure due to chronic volume overload.","authors":"Tereza Tykvartova, Matus Miklovic, Martin Kotrc, Petra Skaroupkova, Ludmila Kazdova, Jaroslava Trnovska, Vojtech Skop, Michal Kolar, Jiri Novotny, Vojtech Melenovsky","doi":"10.1002/prp2.1172","DOIUrl":"10.1002/prp2.1172","url":null,"abstract":"<p><p>While phosphodiesterase-5 inhibition (PED5i) may prevent hypertrophy and failure in pressure-overloaded heart in an experimental model, the impact of PDE5i on volume-overload (VO)-induced hypertrophy is unknown. It is also unclear whether the hypertrophied right ventricle (RV) and left ventricle (LV) differ in their responsiveness to long-term PDE5i and if this therapy affects renal function. The goal of this study was to elucidate the effect of PDE5i treatment in VO due to aorto-caval fistula (ACF) and to compare PDE5i treatment with standard heart failure (HF) therapy with angiotensin-converting enzyme inhibitor (ACEi). ACF/sham procedure was performed on male HanSD rats aged 8 weeks. ACF animals were randomized for PDE5i sildenafil, ACEi trandolapril, or placebo treatments. After 20 weeks, RV and LV function (echocardiography, pressure-volume analysis), myocardial gene expression, and renal function were studied. Separate rat cohorts served for survival analysis. ACF led to biventricular eccentric hypertrophy (LV: +68%, RV: +145%), increased stroke work (LV: 3.6-fold, RV: 6.7-fold), and reduced load-independent systolic function (PRSW, LV: -54%, RV: -51%). Both ACF ventricles exhibited upregulation of the genes of myocardial stress and glucose metabolism. ACEi but not PDE5i attenuated pulmonary congestion, LV remodeling, albuminuria, and improved survival (median survival in ACF/ACEi was 41 weeks vs. 35 weeks in ACF/placebo, p = .02). PDE5i increased cyclic guanosine monophosphate levels in the lungs, but not in the RV, LV, or kidney. PDE5i did not improve survival rate and cardiac and renal function in ACF rats, in contrast to ACEi. VO-induced HF is not responsive to PDE5i therapy.</p>","PeriodicalId":19948,"journal":{"name":"Pharmacology Research & Perspectives","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10823410/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139569509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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