Iranian Journal of Pharmaceutical Research最新文献

筛选
英文 中文
Crocin-Phospholipid Complex: Molecular Docking, Molecular Dynamics Simulation, Preparation, Characterization, and Antioxidant Activity. Crocin-Phospholipid Complex: Molecular Docking, Molecular Dynamics Simulation, Preparation, Characterization, and Antioxidant Activity.
IF 1.8 4区 医学
Iranian Journal of Pharmaceutical Research Pub Date : 2024-03-24 eCollection Date: 2024-01-01 DOI: 10.5812/ijpr-144041
Yasaman Rezaee, Elham Rezaee, Leila Karami, Maryam Torshabi, Azadeh Haeri
{"title":"Crocin-Phospholipid Complex: Molecular Docking, Molecular Dynamics Simulation, Preparation, Characterization, and Antioxidant Activity.","authors":"Yasaman Rezaee, Elham Rezaee, Leila Karami, Maryam Torshabi, Azadeh Haeri","doi":"10.5812/ijpr-144041","DOIUrl":"10.5812/ijpr-144041","url":null,"abstract":"<p><strong>Background: </strong>Crocin is a water-soluble carotenoid compound present in saffron (<i>Crocus sativus</i> L.), known for its wide range of pharmacological activities, including cardioprotective, hepatoprotective, anti-tumorigenic, anti-atherosclerosis, and anti-inflammatory effects.</p><p><strong>Objectives: </strong>The instability of crocin, its low miscibility with oils, and poor bioavailability pose challenges for its pharmaceutical applications. This study aimed to design and prepare a crocin-phospholipid complex (CPC) and assess its physicochemical properties.</p><p><strong>Methods: </strong>The study investigated the formation of the complex and its binding affinity through molecular docking. Molecular dynamics (MD) simulations were conducted to find the optimal molar ratio of crocin to phospholipid for the complex's preparation. The CPC was produced using the solvent evaporation method. Techniques such as X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), field-emission scanning electron microscopy (FE-SEM), nuclear magnetic resonance (NMR), and solubility studies were utilized to characterize and confirm the formation of CPC. Additionally, the in vitro antioxidant activity of crocin and CPC was evaluated.</p><p><strong>Results: </strong>Molecular dynamic simulations explored molar ratios of 1: 1, 1: 1.5, and 1: 2 for crocin to phospholipid. The ratio of 1: 2 was found to be the most stable, exhibiting the highest probability of hydrogen bond formation. Molecular docking, FTIR, and NMR studies indicated hydrogen bond interactions between crocin and phospholipid, confirming CPC's formation. XRD and FE-SEM analyses showed a decrease in crocin's crystallinity within the phospholipid complex. Furthermore, the solubility of crocin in n-octanol was enhanced post-complexation, indicating an increase in crocin's lipophilic nature.</p><p><strong>Conclusions: </strong>Phospholipid complexation emerges as a promising technique for enhancing the physicochemical characteristics of crocin.</p>","PeriodicalId":14595,"journal":{"name":"Iranian Journal of Pharmaceutical Research","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11246643/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141616398","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
Therapeutic Effects of Pimpinella anisum Fruit Extract on Polycystic Ovary Syndrome in a Rat Model: Emerging Role of Inflammatory Responses and Oxidative Stress. 茴芹果提取物对大鼠模型多囊卵巢综合征的治疗作用:炎症反应和氧化应激的新作用
IF 1.8 4区 医学
Iranian Journal of Pharmaceutical Research Pub Date : 2024-03-09 eCollection Date: 2024-01-01 DOI: 10.5812/ijpr-143290
Masoomeh Dadkhah, Negin Gholizadeh, Ramin Nasimi Doost Azgomi, Shahnaz Hosseinzadeh, Sanaz Hamedeyazdan, Khadijeh Haghighat, Salva Afshari, Mina Salimi, Arezoo Moini Jazani
{"title":"Therapeutic Effects of <i>Pimpinella anisum</i> Fruit Extract on Polycystic Ovary Syndrome in a Rat Model: Emerging Role of Inflammatory Responses and Oxidative Stress.","authors":"Masoomeh Dadkhah, Negin Gholizadeh, Ramin Nasimi Doost Azgomi, Shahnaz Hosseinzadeh, Sanaz Hamedeyazdan, Khadijeh Haghighat, Salva Afshari, Mina Salimi, Arezoo Moini Jazani","doi":"10.5812/ijpr-143290","DOIUrl":"10.5812/ijpr-143290","url":null,"abstract":"<p><strong>Background: </strong>Polycystic ovary syndrome (PCOS) is the most common gynecological endocrine disorder.</p><p><strong>Objectives: </strong>This study evaluated the therapeutic effects of <i>Pimpinella anisum</i> L. (<i>P. anisum</i>) fruit on pro-inflammatory cytokines, oxidative stress markers, and ovarian tissue structure in a rat model of PCOS.</p><p><strong>Methods: </strong>After inducing PCOS, female Wistar rats were randomly divided into control and PCOS groups. They orally received daily doses of normal saline or hydro-alcoholic extract of <i>P. anisum</i> at two doses (200 and 400 mg/kg) for 21 days. At the end of the treatment period, ovarian and liver tissues were collected to measure lipid peroxidation, antioxidant status, TNF-α, IL-6 mRNA expression, and its content. Additionally, histopathological examinations of the ovarian tissue were conducted.</p><p><strong>Results: </strong>Our findings revealed a dose-dependent change in the biochemical and histopathological parameters. Treatment with <i>P. anisum</i> resulted in a significant decrease in TNF-α and IL-6 mRNA expression levels and their content in the ovarian and liver tissues. It also reduced MDA levels while increasing SOD and GPx activity in both ovarian and liver tissues of PCOS rats. Furthermore, the number of follicular cysts in the PCOS rat model was significantly reduced.</p><p><strong>Conclusions: </strong>The beneficial effects of <i>P. anisum</i> in PCOS rats are partly attributed to the inhibition of inflammatory and oxidative stress markers in ovarian tissue. These findings suggest that <i>P. anisum</i> could be a potential candidate for the treatment of PCOS disorders.</p>","PeriodicalId":14595,"journal":{"name":"Iranian Journal of Pharmaceutical Research","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11246645/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141616400","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
Cassia angustifolia Vahl. Leaves: Determination of Total Phenolic and Sennoside Contents of Different Fractions in Comparison with Their α- Glucosidase and Tyrosinase Inhibitory Effects Cassia angustifolia Vahl.叶:测定不同馏分的总酚类和番泻苷含量并比较其对α-葡萄糖苷酶和酪氨酸酶的抑制作用
IF 1.6 4区 医学
Iranian Journal of Pharmaceutical Research Pub Date : 2024-03-09 DOI: 10.5812/ijpr-140914
Dina Morid Ahmadi, Somayeh Mojtabavi, S. Ghadami, M. Eftekhari, M. S. Shams Ardekani, Mohammad Ali Faramarzi, M. Khanavi
{"title":"Cassia angustifolia Vahl. Leaves: Determination of Total Phenolic and Sennoside Contents of Different Fractions in Comparison with Their α- Glucosidase and Tyrosinase Inhibitory Effects","authors":"Dina Morid Ahmadi, Somayeh Mojtabavi, S. Ghadami, M. Eftekhari, M. S. Shams Ardekani, Mohammad Ali Faramarzi, M. Khanavi","doi":"10.5812/ijpr-140914","DOIUrl":"https://doi.org/10.5812/ijpr-140914","url":null,"abstract":"Background: Cassia angustifolia Vahl. (Senna) is a medicinal plant containing anthraquinone compounds such as sennoside. Senna is primarily valued for its laxative properties. In Persian medicine, this plant has been also used to treat various disorders such as diabetes and skin hyperpigmentation. Previous studies have shown that different species of senna, such as C. articulata, C. alata, C. Siamea, C. Surattensis inhibit alpha-amylase and α-glucosidase enzymes. To the best of our knowledge, no previous evidence is available on tyrosinase and α-glucosidase inhibitory effects of the extract and different fractions of C. angustifolia leaves. Objectives: The purpose of this study was to investigate the inhibitory effect of the methanol-water extract and different fractions (hexane, chloroform, ethyl acetate, and remaining crude extract) of senna against tyrosinase and α-glucosidase and to investigate their total phenolic and sennoside B contents. Results: Our findings depicted that the methanol-water extract and fractions had no significant anti-tyrosinase activity; however, some fractions were active toward α-glucosidase. The hexane fraction and the remaining crude extract demonstrated the highest inhibition on α-glucosidase compared to acarbose (positive control). In addition, the ethyl acetate fraction contains high phenolic and hydroxy anthraquinone derivatives based on the amount of sennoside B contents equivalent to 382.25 μg/mL of gallic acid and 1.525% of sennoside B, respectively. Moreover, no correlation was observed between the phenolic and sennoside contents of different fractions and their α-glucosidase inhibitory effect. Conclusions: Considering the α-glucosidase inhibition results, the hexane fraction of C. angustifolia can be a valuable fraction for in vitro and in vivo antidiabetic studies as well as further phytochemical studies. Further studies to identify the active substances and the exact mechanism of the bioactive ingredients on the inhibitory effects of α-glucosidase can provide promising results in the future.","PeriodicalId":14595,"journal":{"name":"Iranian Journal of Pharmaceutical Research","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140256033","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
Genomic Characteristics of an Extensive-Drug-Resistant Clinical Escherichia coli O99 H30 ST38 Recovered from Wound 从伤口中发现的广谱耐药临床大肠埃希菌 O99 H30 ST38 的基因组特征
IF 1.6 4区 医学
Iranian Journal of Pharmaceutical Research Pub Date : 2024-03-09 DOI: 10.5812/ijpr-143910
A. A. Dashti, Leila Vali, Sara Shamsah, M. Jadaon, Sherief ElShazly
{"title":"Genomic Characteristics of an Extensive-Drug-Resistant Clinical Escherichia coli O99 H30 ST38 Recovered from Wound","authors":"A. A. Dashti, Leila Vali, Sara Shamsah, M. Jadaon, Sherief ElShazly","doi":"10.5812/ijpr-143910","DOIUrl":"https://doi.org/10.5812/ijpr-143910","url":null,"abstract":"Background: Antibiotic-resistant Escherichia coli is one of the major opportunistic pathogens that cause hospital-acquired infections worldwide. These infections include catheter-associated urinary tract infections (UTIs), ventilator-associated pneumonia, surgical wound infections, and bacteraemia. Objectives: To understand the mechanisms of resistance and prevent its spread, we studied E. coli C91 (ST38), a clinical outbreak strain that was extensively drug-resistant. The strain was isolated from an intensive care unit (ICU) in one of Kuwait's largest hospitals from a patient with UTI. Methods: This study used whole-genome sequencing (Illumina, MiSeq) to identify the strain's multi-locus sequence type, resistance genes (ResFinder), and virulence factors. This study also measured the minimum inhibitory concentrations (MIC) of a panel of antibiotics against this isolate. Results: The analysis showed that E. coli C-91 was identified as O99 H30 ST38 and was resistant to all antibiotics tested, including colistin (MIC > 32 mg/L). It also showed intermediate resistance to imipenem and meropenem (MIC = 8 mg/L). Genome analysis revealed various acquired resistance genes, including mcr-1, blaCTX-M-14, blaCTX-M-15, and blaOXA1. However, we did not detect blaNDM or blaVIM. There were also several point mutations resulting in amino acid changes in chromosomal genes: gyrA, parC, pmrB, and ampC promoter. Additionally, we detected several multidrug efflux pumps, including the multidrug efflux pump mdf(A). Eleven prophage regions were identified, and PHAGE_Entero_SfI_NC was detected to contain ISEc46 and ethidium multidrug resistance protein E (emrE), a small multidrug resistance (SMR) protein family. Finally, there was an abundance of virulence factors in this isolate, including fimbriae, biofilm, and capsule formation genes. Conclusions: This isolate has a diverse portfolio of antimicrobial resistance and virulence genes and belongs to ST38 O99 H30, posing a serious challenge to treating infected patients in clinical settings.","PeriodicalId":14595,"journal":{"name":"Iranian Journal of Pharmaceutical Research","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140255772","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
A Long-Lasting Triamcinolone-Loaded Microneedle Patch for Prolonged Dermal Delivery 用于延长皮肤给药时间的长效曲安奈德微针贴片
IF 1.6 4区 医学
Iranian Journal of Pharmaceutical Research Pub Date : 2024-02-27 DOI: 10.5812/ijpr-138857
Nasrin Zarei Chamgordani, S. Asiaei, F. Ghorbani‐Bidkorpeh, Masoud Babaee Foroutan, Mostafa Dahmardehei, Hamid Reza Moghimi
{"title":"A Long-Lasting Triamcinolone-Loaded Microneedle Patch for Prolonged Dermal Delivery","authors":"Nasrin Zarei Chamgordani, S. Asiaei, F. Ghorbani‐Bidkorpeh, Masoud Babaee Foroutan, Mostafa Dahmardehei, Hamid Reza Moghimi","doi":"10.5812/ijpr-138857","DOIUrl":"https://doi.org/10.5812/ijpr-138857","url":null,"abstract":"Background: Scar is an unpleasant skin lesion that occurs following deep wounds or burns. The application of local triamcinolone is a common treatment for scar treatment and prevention, which should be repeated several times in conventional dosage forms. An effort has been made here to provide a prolonged triamcinolone dermal delivery by microneedle technology, which can also be used for wound closure. Objectives: This study aimed to develop a long-lasting polylactic acid (PLA) microneedle patch for the prolonged release of triamcinolone acetonide (TrA) that could potentially be used for closure of wound edges and scar prevention and treatment. Methods: In this study, 3% and 10% TrA-containing polymeric microneedles were fabricated using the micro molding-solvent casting method. Optical microscopy, X-ray diffraction analysis (XRD), Fourier-transform infrared spectroscopy (FT-IR), and differential scanning calorimetry (DSC) were used for the characterization of microneedles. Mechanical strength was evaluated using a compression test and methylene blue staining. Additionally, the insertion depth was determined by histopathological sectioning of human skin samples and also insertion into Parafilm®M as a skin model. The in vitro drug release profile of the microneedles was studied over 34 days, and the kinetic model was determined. The ex-vivo skin permeation of TrA was studied using a Franz-diffusion cell. Results: The TrA-containing PLA microneedles were fabricated with a uniform structure without any failure, deterioration, or loss of needles. Fourier-transform infrared spectroscopy and differential scanning calorimetry showed no interaction between TrA and PLA, and no effect on crystallinity and thermal behavior of TrA on polymer was detected. Microneedles showed appropriate mechanical properties, which were able to penetrate to about 900 - 1000 μm depth. Release profile from the whole body of 10% and 3% microneedle fitted to Higuchi model with cumulative amounts of 625 µg and 201.64 µg over 34 days. Release from the needles followed zero-order kinetic with cumulative amounts of 30.04 µg and 20.36 µg for 10% and 3%, respectively, for 34 days. Permeation was calculated to be 17 µg/day for 10% TrA-containing microneedle. Conclusions: The results suggested that suitable PLA microneedles containing TrA with prolonged release behavior can be successfully constructed with the solvent casting method.","PeriodicalId":14595,"journal":{"name":"Iranian Journal of Pharmaceutical Research","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140424011","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
Erratum: Review on Approved and Inprogress COVID-19 Vaccines. 勘误:COVID-19 已批准和在研疫苗综述。
IF 1.6 4区 医学
Iranian Journal of Pharmaceutical Research Pub Date : 2024-02-27 eCollection Date: 2024-01-01 DOI: 10.5812/ijpr-146470
Soraya Shahhosseini
{"title":"Erratum: Review on Approved and Inprogress COVID-19 Vaccines.","authors":"Soraya Shahhosseini","doi":"10.5812/ijpr-146470","DOIUrl":"https://doi.org/10.5812/ijpr-146470","url":null,"abstract":"<p><p>[This corrects the article e124228 in vol. 21.].</p>","PeriodicalId":14595,"journal":{"name":"Iranian Journal of Pharmaceutical Research","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10924271/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140094008","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
Efficacy and Safety of A DOAC Compared to Unfractionated Heparin and A Low Molecular Weight Heparin in the Prevention of Thromboembolism in Hematopoietic Stem Cell Transplant Recipients 一种 DOAC 与非减量肝素和一种低分子量肝素相比,在预防造血干细胞移植受者血栓栓塞中的有效性和安全性
IF 1.6 4区 医学
Iranian Journal of Pharmaceutical Research Pub Date : 2024-02-21 DOI: 10.5812/ijpr-143213
Saeed Azimi, A. Hajifathali, S. Parkhideh, J. Salamzadeh, Bardia Rahmati Kamel, F. Dastan, M. Mehdizadeh, Mahdiye Abiyar Ghamsari, Maria Tavakoli-Ardakani
{"title":"Efficacy and Safety of A DOAC Compared to Unfractionated Heparin and A Low Molecular Weight Heparin in the Prevention of Thromboembolism in Hematopoietic Stem Cell Transplant Recipients","authors":"Saeed Azimi, A. Hajifathali, S. Parkhideh, J. Salamzadeh, Bardia Rahmati Kamel, F. Dastan, M. Mehdizadeh, Mahdiye Abiyar Ghamsari, Maria Tavakoli-Ardakani","doi":"10.5812/ijpr-143213","DOIUrl":"https://doi.org/10.5812/ijpr-143213","url":null,"abstract":"Background: Hematopoietic stem cell transplantation (HSCT) patients are at risk of thromboembolic events, making thromboprophylaxis crucial. Objectives: This study aimed to compare apixaban, a direct factor Xa inhibitor (DOAC), with dalteparin and unfractionated heparin for thromboprophylaxis in HSCT recipients. The safety outcome included the assessment of hemorrhagic events. Methods: In this open-label randomized clinical trial, 182 HSCT recipients were divided into three groups: apixaban (n = 61, 2.5 mg two times a day), dalteparin (n = 59, 5000 IU daily), and unfractionated heparin (n = 62, 5000 IU twice daily). These anticoagulant regimens were administered after central vein catheterization and during hospitalization. The primary clinical outcome was the risk of thrombosis, and the secondary outcome was the rate of bleeding. Relevant laboratory results were analyzed using appropriate statistical tests. Results: Among the 61 patients in the apixaban group, six experienced thrombosis (9.83%), with four (6.65%) of them on anticoagulants. In the dalteparin group, three patients (5%) developed thrombosis, two of whom (3.38%) were on anticoagulants. In the heparin group, all four thrombosis cases (6.4%) occurred in patients on anticoagulants (P = 0.543 overall and P = 0.776 in anticoagulant users). Only two cases of bleeding were reported (1.09% overall), one in the dalteparin group (1.69%) and the other in the apixaban group (1.63%). Conclusions: Apixaban, dalteparin, and heparin demonstrated similar effectiveness in preventing thromboembolism in HSCT recipients. Furthermore, the comparison of bleeding rates across the study groups did not reveal significant differences. Larger studies with higher event rates may yield more precise conclusions.","PeriodicalId":14595,"journal":{"name":"Iranian Journal of Pharmaceutical Research","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140443100","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
Design and Characterization of an Osmotic Pump System for Optimal Feeding and pH Control in E. coli Culture to Increase Biomass 设计并鉴定渗透泵系统,优化大肠杆菌培养过程中的进料和 pH 值控制,提高生物量
IF 1.6 4区 医学
Iranian Journal of Pharmaceutical Research Pub Date : 2024-02-17 DOI: 10.5812/ijpr-138677
Saeedeh Abedin, J. Ranjbari, A. Haeri, Hossein Vahidi, Hamidreza Moghimi
{"title":"Design and Characterization of an Osmotic Pump System for Optimal Feeding and pH Control in E. coli Culture to Increase Biomass","authors":"Saeedeh Abedin, J. Ranjbari, A. Haeri, Hossein Vahidi, Hamidreza Moghimi","doi":"10.5812/ijpr-138677","DOIUrl":"https://doi.org/10.5812/ijpr-138677","url":null,"abstract":"Background: Batch cultures used for various purposes, such as expression screening and recombinant protein production in laboratories, usually have some drawbacks due to the bolus addition of carbon sources, such as glucose and buffers, that lead to overflow metabolism, decreased pH, high osmolality, low biomass yield, and low protein production. Objectives: This study aimed to overcome the problems of batch culture using the controlled release concept by a controlled porosity osmotic pump (CPOP) system. Methods: The CPOP was formulated with glucose as a carbon source feeding and sodium carbonate as a pH modifier in the core of the tablet that was coated with a semipermeable membrane containing cellulose acetate and polyethylene glycol (PEG) 400. The release rate was regulated with Eudragit L100 as a retardant agent in the core and PEG 400 as a pore-former agent in the coating membrane. Fourier-transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM) were used to elucidate compatibility between components and release mechanism, respectively. The in-vitro release of glucose and Na2CO3 studies were performed for 24 hours in a mineral culture medium (M9). Then, the effectiveness of CPOP in the growth of Escherichia coli (E. coli) (BL21) (biomass) as a microorganism model was evaluated. Glucose consumption, changes in medium pH, and acetate concentration as a by-product were also monitored during the bacterial growth. Results: Fourier-transform infrared spectroscopy confirmed the compatibility between the components in the osmotic pump, and SEM elucidated the release mechanism due to in-situ delivery pores created by dissolving soluble components (PEG 400) on the coated membrane upon contact with the dissolution medium. The in-vitro release studies indicated that the osmotic pump was able to deliver glucose and sodium carbonate in a zero-order manner. The use of CPOP in E. coli (BL21) cultivation resulted in a statistically significant improvement in biomass (over 80%), maintaining the pH of the medium (above 6.8) during the exponential phase, and reducing metabolic by-product formation (acetate), compared to bolus feeding (P < 0.05). Conclusions: The use of CPOP, which is capable of controlled release of glucose as a carbon source and sodium carbonate as a pH modifier, can overcome the drawbacks of bolus feeding, such as decreased pH, increased acetate concentration, and low productivity. It has a good potential for commercialization.","PeriodicalId":14595,"journal":{"name":"Iranian Journal of Pharmaceutical Research","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139960050","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
Synthesis and Biological Evaluation of Novel Thiadiazole Derivatives as Antiplatelet Agents. 作为抗血小板药物的新型噻二唑衍生物的合成与生物学评价
IF 1.6 4区 医学
Iranian Journal of Pharmaceutical Research Pub Date : 2024-01-07 eCollection Date: 2023-01-01 DOI: 10.5812/ijpr-141846
Mahsima Khakpash, Marjan Esfahanizadeh, Mohammad Mahboubi-Rabbani, Salimeh Amidi, Farzad Kobarfard
{"title":"Synthesis and Biological Evaluation of Novel Thiadiazole Derivatives as Antiplatelet Agents.","authors":"Mahsima Khakpash, Marjan Esfahanizadeh, Mohammad Mahboubi-Rabbani, Salimeh Amidi, Farzad Kobarfard","doi":"10.5812/ijpr-141846","DOIUrl":"https://doi.org/10.5812/ijpr-141846","url":null,"abstract":"<p><p>A novel series of thiadiazole compounds was synthesized through the reaction of thiosemicarbazone intermediates with 2, 3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ). The antiplatelet activity of the synthesized compounds was evaluated using an aggregation test with adenosine diphosphate (ADP) and arachidonic acid (AA) as platelet aggregation inducers. Among the synthesized analogs, compound 3b exhibited the most potent inhibition of platelet aggregation induced by ADP (half maximal inhibitory concentration [IC<sub>50</sub>] = 39 ± 11 µM). Molecular docking studies of 3b revealed hydrogen bonds between the nitrogen of the thiadiazole ring and Lys280. The tolyl ring exhibited hydrophobic interactions with Tyr105, similar to the antagonist co-crystallized with P<sub>2</sub>Y<sub>12</sub> (PDB ID: 4NTJ). These compounds have the potential to serve as lead molecules for designing P<sub>2</sub>Y<sub>12</sub> inhibitors.</p>","PeriodicalId":14595,"journal":{"name":"Iranian Journal of Pharmaceutical Research","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11036646/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140851519","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 Mediating Role of Organizational Identification on Sustainable Human Resources Management and Organizational Citizenship Behavior’s Relationship 组织认同对可持续人力资源管理和组织公民行为关系的中介作用
IF 1.6 4区 医学
Iranian Journal of Pharmaceutical Research Pub Date : 2023-12-31 DOI: 10.5812/ijpr-140447
Shiva Sheikhi, N. Yousefi
{"title":"The Mediating Role of Organizational Identification on Sustainable Human Resources Management and Organizational Citizenship Behavior’s Relationship","authors":"Shiva Sheikhi, N. Yousefi","doi":"10.5812/ijpr-140447","DOIUrl":"https://doi.org/10.5812/ijpr-140447","url":null,"abstract":"Background: There is a general theme in studying employees in the research and development (R&D) department individual performance studies, where tremendous attention has been paid to innovation performance compared to behavioral and particularly extra-role behavior of employees in this department. Objectives: This study investigates the relationship between sustainable human resource management (s-HRM) and organizational citizenship behavior (OCB) through the mediating role of organizational identification (OI) in R&D employees. Methods: A standard questionnaire was used to evaluate s-HRM, OI, and OCB. Five hundred questionnaires were delivered to all employees of the research and development departments of 59 Iranian pharmaceutical companies, and finally, 316 completed questionnaires were collected. Results: The results of data analysis with WarpPls software revealed a positive and significant relationship between s-HRM and OI, as well as OI and OCB. Investigating the mediating role of OI showed that OI partially mediates the relationship between s-HRM and OCB. The model was checked in terms of its fit indices, which were evaluated as favorable. Conclusions: The findings suggest that s-HRM improves employees' willingness to go beyond their defined job description to display in OCB. Additionally, they imply that strengthening OI can improve OCB in employees.","PeriodicalId":14595,"journal":{"name":"Iranian Journal of Pharmaceutical Research","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139131743","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信