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Corrigendum to “Combination of magnetic targeting with synergistic inhibition of NF-κB and glutathione via micellar drug nanomedicine enhances its anti-tumor efficacy.” [Eur. J. Pharm. Biopharm. 155 (2020) 162–176] 磁性靶向结合胶束纳米药物协同抑制NF-κB和谷胱甘肽增强其抗肿瘤效果的更正(欧元。j .制药。生物医学工程学报,2015(5):349 - 349。
IF 4.3 2区 医学 Q1 PHARMACOLOGY & PHARMACY Pub Date : 2025-11-12 DOI: 10.1016/j.ejpb.2025.114912
Kholod A. Elhasany , Sherine N. Khattab , Adnan A. Bekhit , Doaa M. Ragab , Mohammad A. Abdulkader , Amira Zaky , Maged W. Helmy , Hayam M.A. Ashour , Mohamed Teleb , Nesreen S. Haiba , Ahmed O. Elzoghby
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引用次数: 0
Oxygenated collagenase nanoliposomes for deep photodynamic therapy via remodelling the tumor extracellular matrix 氧合胶原酶纳米脂质体通过重塑肿瘤细胞外基质进行深度光动力治疗。
IF 4.3 2区 医学 Q1 PHARMACOLOGY & PHARMACY Pub Date : 2025-11-12 DOI: 10.1016/j.ejpb.2025.114925
Xinyi Xu , Jianhua Han , Xuefang Lou , Xiaoling Xu , Yongzhong Du
Melanoma is highly aggressive and remains difficult to treat. Traditional treatment options often result in damage to normal tissues and a high rate of recurrence. Conventional photodynamic therapy (PDT) is limited by poor light penetration, oxygen depletion, and extracellular matrix (ECM) barriers. In this study, we developed an acid-responsive liposome system that co-loads indocyanine green (ICG, a photosensitizer) and 1-bromoperfluorooctane (PFOB) modified with collagenase (Col-LIP-(ICG + PFOB)) to facilitate the degradation of the tumor extracellular matrix and enable near-infrared (NIR)-triggered PDT. Our findings demonstrated that Col-LIP-(ICG + PFOB) effectively degrades the tumor extracellular matrix via collagenase, resulting in increased accumulation of the formulation within the tumor. Upon NIR irradiation, ICG produced reactive oxygen species and heat, while PFOB provided supplemental oxygen and collagenase degraded the extracellular matrix, together contributing to enhanced antitumor efficacy. In melanoma models, this system significantly inhibited tumor growth and reduced HIF-1α levels. In conclusion, this study offers a novel strategy to increase the efficacy of PDT in the treatment of melanoma.
黑色素瘤具有很强的侵袭性,并且仍然难以治疗。传统的治疗方案往往会导致正常组织的损伤和高复发率。传统的光动力疗法(PDT)受到光线穿透性差、氧气消耗和细胞外基质(ECM)屏障的限制。在这项研究中,我们开发了一种酸反应脂质体系统,该脂质体共负载吲哚菁绿(ICG,一种光敏剂)和胶原酶修饰的1-溴全氟辛烷(PFOB) (Col-LIP-(ICG + PFOB)),以促进肿瘤细胞外基质的降解,并实现近红外(NIR)触发的PDT。我们的研究结果表明,Col-LIP-(ICG + PFOB)通过胶原酶有效地降解肿瘤细胞外基质,导致该制剂在肿瘤内的积累增加。在近红外照射下,ICG产生活性氧和热量,而PFOB提供补充氧和胶原酶降解细胞外基质,共同有助于增强抗肿瘤疗效。在黑色素瘤模型中,该系统显著抑制肿瘤生长并降低HIF-1α水平。总之,本研究为提高PDT治疗黑色素瘤的疗效提供了一种新的策略。
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引用次数: 0
A strategy to prevent ciprofloxacin induced corneal toxicity 预防环丙沙星角膜毒性的策略。
IF 4.3 2区 医学 Q1 PHARMACOLOGY & PHARMACY Pub Date : 2025-11-11 DOI: 10.1016/j.ejpb.2025.114933
Parag Roy, Oisín N. Kavanagh
Every month thousands of patients are treated with ocular ciprofloxacin, yet crystalline deposits form on the surface of the cornea in one in ten patients. This occurs due to a pH shift when the formulation is instilled onto the eye, since ciprofloxacin formulations are buffered to pH 4.5 to keep the drug in solution, whereas the tear pH is around 7. We deconstruct the formulation and the chemical pathophysiology of this condition to enable the selection of inhibitors that can derisk corneal toxicity. Through in vitro and ex vivo models we show that some structurally similar fluoroquinolones (levofloxacin and ofloxacin) can successfully inhibit the nucleation of ciprofloxacin. In contrast, other fluoroquinolones like norfloxacin can promote the formation of a less soluble ciprofloxacin–norfloxacin complex, increasing the risk of corneal deposition. We further identify that mannitol, a common excipient in marketed ophthalmic formulations, accelerates nucleation and could promote the risk of crystallisation. These findings identify both beneficial and counterproductive formulation components and define a practical anticrystal engineering strategy to prevent ciprofloxacin-induced ocular precipitation. We anticipate that this study may inspire further work designing nucleation inhibitors for transient, high supersaturation conditions such as those seen regularly during drug delivery.
每个月都有成千上万的患者接受环丙沙星的治疗,但每十个患者中就有一个在角膜表面形成晶体沉积。这是由于当配方被注入眼睛时pH值发生了变化,因为环丙沙星配方被缓冲到pH值为4.5以保持药物在溶液中,而泪液的pH值约为7。我们解构这种情况的配方和化学病理生理学,使抑制剂的选择,可以降低角膜毒性的风险。通过体外和离体模型,我们发现一些结构相似的氟喹诺酮类药物(左氧氟沙星和氧氟沙星)可以成功地抑制环丙沙星的成核。相比之下,其他氟喹诺酮类药物,如诺氟沙星,可促进形成较难溶解的环丙沙星-诺氟沙星复合物,增加角膜沉积的风险。我们进一步发现,市场上销售的眼科配方中常见的赋形剂甘露醇会加速成核,并可能增加结晶的风险。这些发现确定了有益和适得其反的配方成分,并定义了一种实用的抗晶体工程策略,以防止环丙沙星引起的眼部沉淀。我们预计,这项研究可能会启发进一步的工作,设计成核抑制剂的瞬态,高过饱和条件,如在药物输送过程中经常看到的。
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引用次数: 0
Review of design strategies for active targeted drug delivery systems for pancreatic cancer 胰腺癌活性靶向给药系统设计策略综述。
IF 4.3 2区 医学 Q1 PHARMACOLOGY & PHARMACY Pub Date : 2025-11-09 DOI: 10.1016/j.ejpb.2025.114915
Aysha Rahmatulla , Xiaoling Bi , Ping Wang , Xueni Wang , Shuangshuang Li , Xinran Zhang , Xiaofang Qiao , Yuzhou Chen
Pancreatic cancer (PC) is frequently referred to as the “king of cancers” due to its high mortality rate and poor prognosis. Chemotherapy drugs of a traditional nature are confronted with a multitude of challenges, including poor water solubility, low bioavailability, significant toxic side effects, and poor patient tolerance. This article provides a comprehensive review of the epidemiological and pathophysiological features of PC. The review also highlights the key antigens and receptors that are overexpressed in PC cells, including antigens such as TROP2, MSLN, MUC, and CA19-9. Furthermore, the article covers receptors like EGFR, TfR, integrins, GPCRs, IGF, GPC1, TF, and MET. The text introduces current pancreatic cancer treatment drugs, including gemcitabine, tegafur, and albumin-bound paclitaxel. The text also discusses targeted drug delivery carriers for PC, including liposomes, carbon nanotubes, exosome, polymer micelles, nanoparticles, nanocrystals, and hydrogel-encapsulated nanoparticles. The review offers a concise overview of the antibodies and ligands employed in active targeted drug delivery systems for PC, including hRS7, αTROP2, MF-T, TAB004, HzMUC1, as well as ligands such as EGF, GE11 peptide, Tf, tTR14, XQ-2d, cNGQ, α5β1-targeted peptide, IGF1, and SDC1. The therapeutic effects and prospects of combining active targeting strategies with photothermal therapy, immunotherapy, and gene editing technology are discussed in this paper.
胰腺癌因其高死亡率和预后差,常被称为“癌症之王”。传统性质的化疗药物面临着水溶性差、生物利用度低、毒副作用大、患者耐受性差等诸多挑战。本文就PC的流行病学和病理生理特点作一综述。本综述还强调了在PC细胞中过度表达的关键抗原和受体,包括TROP2、MSLN、MUC和CA19-9等抗原。此外,本文还涵盖了EGFR、TfR、整合素、gpcr、IGF、GPC1、TF和MET等受体。本文介绍了目前的胰腺癌治疗药物,包括吉西他滨,替加福和白蛋白结合紫杉醇。文中还讨论了针对PC的药物递送载体,包括脂质体,碳纳米管,外泌体,聚合物胶束,纳米颗粒,纳米晶体和水凝胶封装的纳米颗粒。本文简要介绍了用于PC活性靶向药物传递系统的抗体和配体,包括hRS7、αTROP2、MF-T、TAB004、HzMUC1,以及配体如EGF、GE11肽、Tf、tTR14、XQ-2d、cNGQ、α5β1靶向肽、IGF1和SDC1。本文就主动靶向策略与光热疗法、免疫疗法、基因编辑技术相结合的治疗效果及前景进行了综述。
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引用次数: 0
A bedside-savior for insomnia and anxiety disorders: melatonin/buspirone hydrochloride compound oral fast-dissolving film 失眠和焦虑症的床边救星:褪黑激素/丁螺环酮盐酸复方口服快溶膜。
IF 4.3 2区 医学 Q1 PHARMACOLOGY & PHARMACY Pub Date : 2025-11-09 DOI: 10.1016/j.ejpb.2025.114930
Xiaoyan Liu , Chenxiao Chu , Qianru Lu , Xinlu Song , Mingyang Wu , Jingxin Gou , Haibing He , Tian Yin , Xing Tang , Xiwei Jiang , Yu Zhang
Insomnia and anxiety disorders are highly prevalent conditions that significantly impair daily functioning. Notably, a bidirectional relationship exists between these two disorders: heightened cortical excitability secondary to anxiety disrupts sleep onset mechanisms, while prolonged sleep insufficiency impairs prefrontal cortical regulation of emotional processing, thereby exacerbating anxiety symptoms. This creates a vicious cycle that worsens both conditions. To address this clinical challenge, we developed a combination therapy using two pharmacological agents with complementary mechanisms of action. Given the potential adverse neurological effects associated with conventional anxiolytics and hypnotics, we specifically selected two short-acting drugs with favorable safety profiles: melatonin and buspirone hydrochloride. To address insomnia accompanied by anxiety, we have designed and prepared a Bedside-savior:a compound oral fast-dissolving film containing melatonin and buspirone hydrochloride. Unlike traditional tablets or capsules, this immediate-release film offers distinct advantages for our target patients. Since it requires no water for administration, it prevents sleep disruption caused by nighttime drinking. Its ease of use makes it ideal for children, elderly individuals, and those with swallowing difficulties. Furthermore, the medication is rapidly absorbed through the sublingual venous plexus, enabling quick onset of action to simultaneously ease anxiety and promote faster sleep initiation—all without the need to get out of bed.
失眠和焦虑症是非常普遍的情况,严重损害日常功能。值得注意的是,这两种疾病之间存在双向关系:继发于焦虑的皮质兴奋性升高扰乱了睡眠机制,而长期睡眠不足则损害了前额叶皮质对情绪加工的调节,从而加剧了焦虑症状。这就形成了一个恶性循环,使两种情况都更加恶化。为了解决这一临床挑战,我们开发了一种联合疗法,使用两种具有互补作用机制的药物。考虑到传统抗焦虑药和催眠药对神经系统的潜在不良影响,我们特别选择了两种具有良好安全性的短效药物:褪黑激素和盐酸丁螺环酮。为了解决伴有焦虑的失眠问题,我们设计并制备了一种床边救星:一种含有褪黑激素和丁螺环酮盐酸的复方口服速溶膜。与传统的片剂或胶囊不同,这种立即释放的薄膜为我们的目标患者提供了明显的优势。由于它不需要水来服用,它可以防止夜间饮用引起的睡眠中断。它的易用性使它非常适合儿童,老年人和吞咽困难的人。此外,药物通过舌下静脉丛迅速吸收,使快速开始的行动,同时缓解焦虑和促进更快的睡眠启动-所有这些都不需要起床。
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引用次数: 0
Development of piperine/HPβCD-loaded PVA-coated iron oxide nanoparticles in in situ gel for enhanced retinal delivery and anti-VEGF activity 胡椒碱/ hpβ cd负载pva包被氧化铁纳米颗粒原位凝胶增强视网膜传递和抗vegf活性的开发。
IF 4.3 2区 医学 Q1 PHARMACOLOGY & PHARMACY Pub Date : 2025-11-08 DOI: 10.1016/j.ejpb.2025.114931
Phatsawee Jansook , Hay Man Saung Hnin Soe , Theingi Tun , Hay Marn Hnin , Supakarn Chamni , Rathapon Asasutjarit , Sarawut Lapmanee , Narumol Bhummaphan , Charoenchai Puttipanyalears , Sakkarin Bhubhanil , Anjaree Inchan , Natthawut Charoenphon , Yi Lu , Wei Wu
Piperine (PIP) is a potential therapeutic agent for retinal diseases; however, its poor aqueous solubility limits its ocular bioavailability. To overcome this limitation, a novel nanocarrier system was fabricated through the adsorption of PIP/hydroxypropyl-β-cyclodextrin (HPβCD) inclusion complexes onto the surface of polymer-stabilized iron oxide nanoparticles (IONs), which were then incorporated into an in situ gelling formulation. Three hydrophilic polymers, i.e., polyethylene glycol, poloxamer 407, and polyvinyl alcohol (PVA) were used as surface coatings. Among these, PIP/HPβCD/PVA-IONs exhibited the highest percent entrapment efficiency (77.38 ± 2.17 %) and superior mucoadhesive properties. Ocular safety was evaluated using the hen’s egg test on chorioallantoic membrane (HET-CAM), which indicated no irritation. To further enhance ocular retention and retinal delivery, the PIP/HPβCD/PVA-IONs were incorporated into an in situ gel. Upon contact with simulated tear fluid, the formulation underwent a sol-to-gel transition with excellent gelling capacity and improved ex vivo permeation across excised porcine cornea (0.85 ± 0.07 × 10-6 cm⋅s−1) and sclera (3.16 ± 0.29 × 10-6 cm⋅s−1). In vitro studies on ARPE-19 retinal cells demonstrated the formulation was non-toxic at concentrations up to 50 µg/mL (>70 % cell viability). Furthermore, in vitro and in vivo evaluations revealed that the formulation effectively suppressed vascular endothelial growth factor A at both the protein and mRNA levels. It also exhibited significant anti-inflammatory and anti-angiogenic effects. These findings suggest that the PIP/HPβCD-loaded IONs incorporated in in situ gel system offers a promising nanocarrier platform for targeted ocular drug delivery in the treatment of retinal diseases.
胡椒碱(PIP)是一种潜在的视网膜疾病治疗剂;然而,其水溶性差限制了其眼内生物利用度。为了克服这一限制,通过将PIP/羟丙基-β-环糊精(HPβCD)包合物吸附到聚合物稳定的氧化铁纳米颗粒(离子)表面,制备了一种新型纳米载体体系,然后将其掺入原位胶凝配方中。三种亲水性聚合物,即聚乙二醇,poloxam407和聚乙烯醇(PVA)被用作表面涂层。其中,PIP/ hp - β cd /PVA-IONs的包封率最高(77.38 ± 2.17 %),具有较好的粘接性能。采用绒毛膜-尿囊膜(HET-CAM)鸡蛋试验评价其眼部安全性,无刺激反应。为了进一步增强眼潴留和视网膜传递,将PIP/HPβCD/ pva -离子掺入原位凝胶中。与模拟眼泪液接触后,该配方发生了溶胶-凝胶转变,具有优异的凝胶能力,并改善了切除的猪角膜(0.85 ± 0.07 × 10-6 cm⋅s-1)和巩膜(3.16 ± 0.29 × 10-6 cm⋅s-1)的体外渗透。ARPE-19视网膜细胞的体外研究表明,该制剂在浓度高达50 µg/mL (bbb70 %细胞存活率)时无毒。此外,体外和体内评估显示,该配方在蛋白质和mRNA水平上都能有效抑制血管内皮生长因子A。它还具有显著的抗炎和抗血管生成作用。这些发现表明,将PIP/ hp β cd负载离子结合到原位凝胶系统中,为治疗视网膜疾病的靶向眼部药物递送提供了一个有前景的纳米载体平台。
{"title":"Development of piperine/HPβCD-loaded PVA-coated iron oxide nanoparticles in in situ gel for enhanced retinal delivery and anti-VEGF activity","authors":"Phatsawee Jansook ,&nbsp;Hay Man Saung Hnin Soe ,&nbsp;Theingi Tun ,&nbsp;Hay Marn Hnin ,&nbsp;Supakarn Chamni ,&nbsp;Rathapon Asasutjarit ,&nbsp;Sarawut Lapmanee ,&nbsp;Narumol Bhummaphan ,&nbsp;Charoenchai Puttipanyalears ,&nbsp;Sakkarin Bhubhanil ,&nbsp;Anjaree Inchan ,&nbsp;Natthawut Charoenphon ,&nbsp;Yi Lu ,&nbsp;Wei Wu","doi":"10.1016/j.ejpb.2025.114931","DOIUrl":"10.1016/j.ejpb.2025.114931","url":null,"abstract":"<div><div>Piperine (PIP) is a potential therapeutic agent for retinal diseases; however, its poor aqueous solubility limits its ocular bioavailability. To overcome this limitation, a novel nanocarrier system was fabricated through the adsorption of PIP/hydroxypropyl-β-cyclodextrin (HPβCD) inclusion complexes onto the surface of polymer-stabilized iron oxide nanoparticles (IONs), which were then incorporated into an <em>in situ</em> gelling formulation. Three hydrophilic polymers, i.e., polyethylene glycol, poloxamer 407, and polyvinyl alcohol (PVA) were used as surface coatings. Among these, PIP/HPβCD/PVA-IONs exhibited the highest percent entrapment efficiency (77.38 ± 2.17 %) and superior mucoadhesive properties. Ocular safety was evaluated using the hen’s egg test on chorioallantoic membrane (HET-CAM), which indicated no irritation. To further enhance ocular retention and retinal delivery, the PIP/HPβCD/PVA-IONs were incorporated into an <em>in situ</em> gel. Upon contact with simulated tear fluid, the formulation underwent a sol-to-gel transition with excellent gelling capacity and improved <em>ex vivo</em> permeation across excised porcine cornea (0.85 ± 0.07 × 10<sup>-6</sup> cm⋅s<sup>−1</sup>) and sclera (3.16 ± 0.29 × 10<sup>-6</sup> cm⋅s<sup>−1</sup>). <em>In vitro</em> studies on ARPE-19 retinal cells demonstrated the formulation was non-toxic at concentrations up to 50 µg/mL (&gt;70 % cell viability). Furthermore, <em>in vitro</em> and <em>in vivo</em> evaluations revealed that the formulation effectively suppressed vascular endothelial growth factor A at both the protein and mRNA levels. It also exhibited significant anti-inflammatory and anti-angiogenic effects. These findings suggest that the PIP/HPβCD-loaded IONs incorporated in <em>in situ</em> gel system offers a promising nanocarrier platform for targeted ocular drug delivery in the treatment of retinal diseases.</div></div>","PeriodicalId":12024,"journal":{"name":"European Journal of Pharmaceutics and Biopharmaceutics","volume":"218 ","pages":"Article 114931"},"PeriodicalIF":4.3,"publicationDate":"2025-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145488154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Pharmacomagnetography of floating gastroretentive systems in vivo in different prandial states evaluated by AC biosusceptometry 体内漂浮胃保留系统在不同进食状态下的药磁图。
IF 4.3 2区 医学 Q1 PHARMACOLOGY & PHARMACY Pub Date : 2025-11-07 DOI: 10.1016/j.ejpb.2025.114907
Gustavo Serafim Rodrigues , Laís Pereira Buranello , João Miguel Barboza , Michael José Abílio Almeida , Erick Guilherme Stoppa , Priscileila Colerato Ferrari , Guilherme Augusto Soares , José Ricardo de Arruda Miranda
<div><div>In recent decades, the development of effective therapies with minimal adverse effects has become a major challenge in the pharmaceutical field. Despite its popularity, oral administration faces limitations related to the physiological variability of the gastrointestinal tract (GIT), such as gastric emptying time, absorption window, and site of drug release. In this context, modified-release systems—especially gastroretentive drug delivery systems (GRDDS)—have gained prominence. GRDDS aim to prolong gastric retention time (GRT), facilitating controlled and localized drug release, particularly beneficial for drugs with limited absorption windows or instability in alkaline pH. This study evaluated the in vivo performance of a magnetic floating drug delivery system (MFDDS) containing metronidazole using pharmacomagnetography based on alternating current biosusceptometry (ACB) in healthy volunteers (n = 12, aged 19–21 years) under fasted and fed conditions. Results demonstrated that the prandial state significantly influenced MFDDS behavior, with food intake prolonging both the floating lag time (FLT) (105–120 min fed vs. 45–60 min fasted) and gastric retention time (GRT) (<span><math><mrow><mn>165.0</mn><mo>±</mo><mn>32.2</mn></mrow></math></span> min fed vs. <span><math><mrow><mn>118.3</mn><mo>±</mo><mn>35.3</mn></mrow></math></span> min fasted, p < 0.0001). The orocecal transit time (OCTT) was similar between groups (<span><math><mrow><mn>271.7</mn><mo>±</mo><mn>32.0</mn></mrow></math></span> min fed vs. <span><math><mrow><mn>254.2</mn><mo>±</mo><mn>44.9</mn></mrow></math></span> min fasted, p > 0.05), while small intestine transit time (SITT) was shorter in the fed state (<span><math><mrow><mn>111.7</mn><mo>±</mo><mn>22.3</mn></mrow></math></span> min) compared to the fasted state (<span><math><mrow><mn>140.0</mn><mo>±</mo><mn>47.7</mn></mrow></math></span> min), though not statistically significant. Pharmacokinetic parameters showed significant differences, with the fed state resulting in delayed time to maximum concentration (<span><math><mrow><mi>Tmax</mi></mrow></math></span>) (<span><math><mrow><mn>252.0</mn><mo>±</mo><mn>52.9</mn></mrow></math></span> min fed vs. <span><math><mrow><mn>174.0</mn><mo>±</mo><mn>60.0</mn></mrow></math></span> min fasted, p < 0.05) but substantially higher maximum plasma concentrations (Cmax) (<span><math><mrow><mn>11.0</mn><mo>±</mo><mn>5.7</mn></mrow></math></span> µg/mL fed vs. <span><math><mrow><mn>4.7</mn><mo>±</mo><mn>2.2</mn></mrow></math></span> µg/mL fasted, p < 0.05) and area under the curve (AUC360) (<span><math><mrow><mn>2606.1</mn><mo>±</mo><mn>1825.5</mn></mrow></math></span> µg·h/mL fed vs. <span><math><mrow><mn>969.3</mn><mo>±</mo><mn>638.3</mn></mrow></math></span> µg·h/mL fasted, p < 0.05). The time lag before detectable plasma concentration (<span><math><mrow><mi>Tlag</mi></mrow></math></span>) was similar between groups (<span><math><mrow><mn>67.5</mn><mo>±</mo><mn>21
近几十年来,开发副作用最小的有效疗法已成为制药领域的主要挑战。尽管口服给药很受欢迎,但由于胃肠道(GIT)的生理变异性,如胃排空时间、吸收窗口和药物释放部位等,口服给药存在局限性。在这种背景下,修饰释放系统,特别是胃保留性药物传递系统(GRDDS)已经得到了重视。GRDDS旨在延长胃保留时间(GRT),促进药物的控制和局部释放,特别是对吸收窗口有限或碱性ph不稳定的药物有益。本研究利用基于交流电生物敏感性(ACB)的药物磁成像技术,在健康志愿者(n = 12,年龄19-21 岁)的禁食和进食条件下,评估了含有甲硝唑的磁漂浮给药系统(MFDDS)的体内性能。结果表明,进食状态显著影响MFDDS行为,食物摄入延长了漂浮滞后时间(FLT)(105-120 min进食vs 45-60 min禁食)和胃保留时间(GRT)(165.0±32.2 min进食vs 118.3±35.3 min禁食,p  0.05),而小肠转运时间(SITT)在进食状态下(111.7±22.3 min)比在禁食状态下(140.0±47.7 min)更短,但无统计学意义。药代动力学参数差异有统计学意义(p <  0.05),摄食状态导致达到最大浓度的时间延迟(Tmax)(摄食252.0±52.9 min vs禁食174.0±60.0 min)。在喂食状态下,胃内容物的粘度增加,通过在片剂周围形成疏水屏障,限制胃液扩散到聚合物基质中,延迟了片剂的初始浮选。进食状态下胃潴留的延长导致甲硝唑吸收更完全和持续,证实了胃潴留系统在优化药物生物利用度方面的有效性,特别是在餐后给药时。
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In this context, modified-release systems—especially gastroretentive drug delivery systems (GRDDS)—have gained prominence. GRDDS aim to prolong gastric retention time (GRT), facilitating controlled and localized drug release, particularly beneficial for drugs with limited absorption windows or instability in alkaline pH. This study evaluated the in vivo performance of a magnetic floating drug delivery system (MFDDS) containing metronidazole using pharmacomagnetography based on alternating current biosusceptometry (ACB) in healthy volunteers (n = 12, aged 19–21 years) under fasted and fed conditions. Results demonstrated that the prandial state significantly influenced MFDDS behavior, with food intake prolonging both the floating lag time (FLT) (105–120 min fed vs. 45–60 min fasted) and gastric retention time (GRT) (&lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mn&gt;165.0&lt;/mn&gt;&lt;mo&gt;±&lt;/mo&gt;&lt;mn&gt;32.2&lt;/mn&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; min fed vs. &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mn&gt;118.3&lt;/mn&gt;&lt;mo&gt;±&lt;/mo&gt;&lt;mn&gt;35.3&lt;/mn&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; min fasted, p &lt; 0.0001). The orocecal transit time (OCTT) was similar between groups (&lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mn&gt;271.7&lt;/mn&gt;&lt;mo&gt;±&lt;/mo&gt;&lt;mn&gt;32.0&lt;/mn&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; min fed vs. &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mn&gt;254.2&lt;/mn&gt;&lt;mo&gt;±&lt;/mo&gt;&lt;mn&gt;44.9&lt;/mn&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; min fasted, p &gt; 0.05), while small intestine transit time (SITT) was shorter in the fed state (&lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mn&gt;111.7&lt;/mn&gt;&lt;mo&gt;±&lt;/mo&gt;&lt;mn&gt;22.3&lt;/mn&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; min) compared to the fasted state (&lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mn&gt;140.0&lt;/mn&gt;&lt;mo&gt;±&lt;/mo&gt;&lt;mn&gt;47.7&lt;/mn&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; min), though not statistically significant. Pharmacokinetic parameters showed significant differences, with the fed state resulting in delayed time to maximum concentration (&lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mi&gt;Tmax&lt;/mi&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt;) (&lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mn&gt;252.0&lt;/mn&gt;&lt;mo&gt;±&lt;/mo&gt;&lt;mn&gt;52.9&lt;/mn&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; min fed vs. &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mn&gt;174.0&lt;/mn&gt;&lt;mo&gt;±&lt;/mo&gt;&lt;mn&gt;60.0&lt;/mn&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; min fasted, p &lt; 0.05) but substantially higher maximum plasma concentrations (Cmax) (&lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mn&gt;11.0&lt;/mn&gt;&lt;mo&gt;±&lt;/mo&gt;&lt;mn&gt;5.7&lt;/mn&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; µg/mL fed vs. &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mn&gt;4.7&lt;/mn&gt;&lt;mo&gt;±&lt;/mo&gt;&lt;mn&gt;2.2&lt;/mn&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; µg/mL fasted, p &lt; 0.05) and area under the curve (AUC360) (&lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mn&gt;2606.1&lt;/mn&gt;&lt;mo&gt;±&lt;/mo&gt;&lt;mn&gt;1825.5&lt;/mn&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; µg·h/mL fed vs. &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mn&gt;969.3&lt;/mn&gt;&lt;mo&gt;±&lt;/mo&gt;&lt;mn&gt;638.3&lt;/mn&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; µg·h/mL fasted, p &lt; 0.05). The time lag before detectable plasma concentration (&lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mi&gt;Tlag&lt;/mi&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt;) was similar between groups (&lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;mn&gt;67.5&lt;/mn&gt;&lt;mo&gt;±&lt;/mo&gt;&lt;mn&gt;21","PeriodicalId":12024,"journal":{"name":"European Journal of Pharmaceutics and Biopharmaceutics","volume":"218 ","pages":"Article 114907"},"PeriodicalIF":4.3,"publicationDate":"2025-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145480837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Synergistic co-processing of heat-moisture treated resistant rice starch with HPMC and Eudragit® S100: A novel multifunctional excipient for direct compression and colon-targeted delivery HPMC和Eudragit®S100协同加工耐热湿处理大米淀粉:一种新型多功能赋形剂,用于直接压缩和结肠靶向递送。
IF 4.3 2区 医学 Q1 PHARMACOLOGY & PHARMACY Pub Date : 2025-11-04 DOI: 10.1016/j.ejpb.2025.114913
Karnkamol Trisopon , Phennapha Saokham , Nisit Kittipongpatana , Neungreuthai Chomchoei , Ornanong Suwannapakul Kittipongpatana
A novel multifunctional excipient was developed based on co-processed resistant rice starch (RRS) for direct compression (DC) tablet and targeted colonic drug delivery. While rice starch (RS) is biodegradable and exhibits good compressibility for DC, its poor flowability and low resistant starch content limit its applicability in both DC and controlled-release formulations. To address these limitations, RS was modified using heat-moisture treatment (HMT) with optimal process parameters (moisture content, temperature, and treatment time) were determined through a design of experiments (DoE) approach. The optimized HMT conditions successfully increased resistant starch content by approximately fourfold compared with native RS, and enhanced the plastic deformation properties of RRS, improving its compressibility. To achieve targeted colonic release, a pH-sensitive and enzyme-degradable polymer system was incorporated. The optimized RRS was co-processed with high-viscosity HPMC and Eudragit® S100 through wet granulation to obtain a co-processed excipient (CRRS). The resulting CRRS demonstrated enhanced flowability, packing efficiency, and plastic deformation characteristics, meeting all SeDeM expert system criteria for DC suitability. The corrective excipient proportion (CP, %) indicated a high dilution capacity, supporting drug loading of up to 55 %. Tablets containing 30 % w/w 5-aminosalicylic acid (5-ASA) as a model drug, prepared by DC using CRRS, exhibited acceptable uniformity of dosage units, friability, and drug content. In vitro dissolution studies revealed a controlled-release pattern, achieving approximately 80 % cumulative release within 12 h. The dense matrix formed by resistant starch and functional polymers effectively restricted water penetration and enzymatic access, promoting gradual and site-specific release under colonic conditions compared with tablets lacking RRS. Release kinetics followed the Higuchi model, with n values suggesting an anomalous transport mechanism involving both diffusion and erosion. Overall, CRRS represents a promising multifunctional excipient combining excellent DC performance with controlled, site-specific colonic drug delivery potential, supporting the development of advanced oral dosage forms.
以耐药大米淀粉(RRS)为原料,研制了一种用于直接压片和结肠靶向给药的新型多功能赋形剂。虽然大米淀粉具有生物可降解性和良好的DC压缩性,但其流动性差和抗性淀粉含量低限制了其在DC和控释制剂中的适用性。为了解决这些局限性,采用热湿处理(HMT)对RS进行了修改,并通过实验设计(DoE)方法确定了最佳工艺参数(水分含量、温度和处理时间)。优化后的HMT条件成功地使抗性淀粉含量比天然RS提高了约4倍,并增强了RRS的塑性变形性能,提高了其压缩性能。为了实现目标结肠释放,加入了ph敏感和酶降解的聚合物系统。将优化后的RRS与高粘度HPMC和Eudragit®S100进行湿造粒共加工,得到共加工辅料(CRRS)。结果表明,CRRS具有更好的流动性、填充效率和塑性变形特性,符合SeDeM专家系统对直流适用性的所有标准。校正辅料比例(CP, %)显示高稀释能力,支持药物负荷高达55 %。以30 % w/w 5-氨基水杨酸(5-ASA)为模型药物,采用CRRS直流法制备的片剂,其剂量单位、脆性和药物含量均可接受。体外溶出度研究显示出控释模式,在12 h内达到约80 %的累积释放。与缺乏RRS的片剂相比,由抗性淀粉和功能聚合物形成的致密基质有效地限制了水的渗透和酶的进入,促进了结肠条件下逐渐和特定部位的释放。释放动力学遵循Higuchi模型,其中n值表明涉及扩散和侵蚀的异常运输机制。总的来说,CRRS是一种很有前途的多功能赋形剂,结合了优良的DC性能和可控的、特定部位的结肠给药潜力,支持高级口服剂型的开发。
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引用次数: 0
Analysis of discrepancy in SNEDDS performance for a “brick dust” mebendazole between in-vitro and in-vivo estimation “砖粉”甲苯达唑体内、体外SNEDDS性能差异分析。
IF 4.3 2区 医学 Q1 PHARMACOLOGY & PHARMACY Pub Date : 2025-11-01 DOI: 10.1016/j.ejpb.2025.114911
Seito Maehara , Saki Nishiyama , Masato Maruyama , Kazutaka Higaki
Oral absorption of mebendazole (MBZ), a brick dust, was successfully improved 10 times by dosing 2% HPMCP-50 SNEDDS of MBZ co-amorphized with (+)-10-camphorsulufonic acid (CSA) (MBZ-CSA), compared with crystal powders in our previous study. However, an in-vitro non-sink dissolution study with pH3.9 acetate buffer or FaSSIF (conventional method) revealed that 2% HPMCP-50 SNEDDS of MBZ-CSA improved the dissolution of MBZ over 440 times compared to the crystal. In the current study, we assessed the reason for the large discrepancy in SNEDDS performance between in-vitro and in-vivo estimations using several novel in-vitro methods. The Sequential Gastro-Intestinal Exposure (SGIE) method, reflecting the transit from the stomach to the small intestine (GI-transit), revealed MBZ precipitation higher than that in the conventional method using FaSSIF. The Egg phosphatidylcholine-Monolayer-CHCl3 Partition (EMCP) method, reflecting the absorption process, also indicated MBZ precipitation at early time periods greater than the conventional method. The SGIE-EMCP method, reflecting both GI-transit and subsequent absorption processes, indicated the highest precipitation of MBZ and MBZ transfer to the CHCl3 phase less than the EMCP method. The SGIE-EMCP method also indicated that 2% HPMCP-50 SNEDDS transferred MBZ to the CHCl3 phase significantly larger than SNEDDS without the polymer, which coincided with the in-vivo tendency.
用2 % HPMCP-50 SNEDDS与(+)-10-樟脑磺酸(CSA) (MBZ-CSA)共晶化,可将砖粉苯并达唑(MBZ)的口服吸收率提高10倍。然而,用pH3.9醋酸缓冲液或FaSSIF(常规方法)进行的体外非沉淀溶出研究表明,与晶体相比,2 % HPMCP-50 SNEDDS使MBZ- csa的溶出率提高了440倍以上。在目前的研究中,我们使用几种新颖的体外方法评估了体内和体外估计SNEDDS性能差异较大的原因。顺序胃肠道暴露(SGIE)方法,反映了从胃到小肠的传输(GI-transit),显示MBZ沉淀高于使用FaSSIF的常规方法。反映吸收过程的鸡蛋磷脂酰胆碱-单层- chcl3分割法(EMCP)也表明MBZ在早期的沉淀量大于常规方法。SGIE-EMCP方法反映了GI-transit和随后的吸收过程,表明MBZ的最大沉淀和MBZ向CHCl3相的转移少于EMCP方法。sgi - emcp方法还表明,2 % HPMCP-50的SNEDDS将MBZ转移到CHCl3相的量明显大于未添加聚合物的SNEDDS,这与体内趋势一致。
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引用次数: 0
Nanoparticle-based oral rinses for plaque control: A systematic review of efficacy and safety 纳米颗粒口腔冲洗剂用于菌斑控制:有效性和安全性的系统评价。
IF 4.3 2区 医学 Q1 PHARMACOLOGY & PHARMACY Pub Date : 2025-10-30 DOI: 10.1016/j.ejpb.2025.114910
Bakr Ahmed , Fatima Ahmed , Anil Kumar , Mohammad Imran , Mohammad Kashif Iqubal , Hadeel Adel Al-Lami
This systematic review analyzes clinical, preclinical, and patent literature on nano-enabled mouthwashes for plaque control. Searches were conducted across PubMed, Embase, Scopus, Web of Science, and three patent databases (Google Patents, Lens, and Espacenet) for English-language records published from January 2018 to June 2025. Eligible studies included randomized controlled trials (RCTs), other human investigations, and in vitro, ex vivo, or animal studies evaluating nanoparticle-based mouthrinses. Two reviewers independently extracted data, assessed bias risk using the RoB-2 tool, and rated evidence certainty with the GRADE approach. Findings were narratively summarized due to methodological differences. A total of 38 records met the inclusion criteria: 25 primary research studies (10 RCTs; 15 in vitro/animal) and 13 patents on nano-enabled mouthwashes. Silver nanoparticles were the most studied, followed by zinc oxide, titanium dioxide, calcium phosphate, and herbal nanoemulsions. Nano-enabled mouthwashes reduced plaque index by a pooled mean difference of 0.32 (95 % CI: 0.25 to 0.39; I2 = 45 %) and gingival index by a pooled mean difference of 0.27 (95 % CI: 0.21 to 0.33; I2 = 50 %) units, respectively, comparable to 0.12 % chlorhexidine (CHX), with fewer reports of staining or taste changes. Nanosilver rinses decreased white-spot lesions in orthodontic patients by 66 %, and titanium dioxide-based rinses halved dentine hypersensitivity scores. Preclinical studies showed ≥2-log reductions in biofilm viability, pH-triggered mineral release, and nanozyme-like catalytic activity. Thirteen patents (2003-2024) described stable nanoformulations, odour-neutralizing systems, mucoadhesive carriers, and theranostic technologies, indicating significant commercial interest. Evidence certainty was moderate for short-term plaque and gingival control but low for caries prevention and long-term safety. Nano-enabled mouthwashes show promise as alternatives to CHX, but large, long-term RCTs are needed to confirm efficacy, monitor safety, and support clinical use.
本系统综述分析了纳米漱口水用于菌斑控制的临床、临床前和专利文献。检索了PubMed、Embase、Scopus、Web of Science和三个专利数据库(谷歌Patents、Lens和Espacenet),检索了2018年1月至2025年6月期间发表的英语记录。符合条件的研究包括随机对照试验(rct)、其他人体研究以及评估纳米颗粒口腔清洁的体外、离体或动物研究。两位审稿人独立提取数据,使用rob2工具评估偏倚风险,并使用GRADE方法对证据确定性进行评级。由于方法上的差异,研究结果被叙述总结。共有38项记录符合纳入标准:25项初步研究(10项随机对照试验,15项体外/动物试验)和13项纳米漱口水专利。研究最多的是银纳米粒子,其次是氧化锌、二氧化钛、磷酸钙和草药纳米乳液。纳米漱口水减少菌斑指数池平均差的0.32(95 % CI: 0.25 - 0.39; I2 = 45 %)和牙龈指数池平均差为0.27(95 % CI: 0.21 - 0.33; I2 = 50 %)单位,分别相当于0.12 %洗必泰(CHX),用更少的染色或味道变化的报告。纳米银漱口水使正畸患者的白斑病变减少66% %,二氧化钛漱口水使牙本质过敏评分减半。临床前研究显示 生物膜活力、ph触发的矿物质释放和纳米酶样催化活性降低≥2 log。13项专利(2003-2024)描述了稳定的纳米配方、气味中和系统、黏合剂载体和治疗技术,表明了重大的商业利益。证据确定性在短期菌斑和牙龈控制方面中等,但在预防龋齿和长期安全性方面较低。纳米漱口水显示出作为CHX替代品的潜力,但需要大规模、长期的随机对照试验来确认其有效性、监测安全性并支持临床使用。
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引用次数: 0
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European Journal of Pharmaceutics and Biopharmaceutics
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