12 results on '"Rathnanand M"'
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2. Novel intervention to improve adherence to medication in diabetic patients: Formulation and evaluation of Metformin HCL novel dosage form
- Author
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Kandi, M., Sivasai, G., Rathnanand, M., Sreenivasa Meka Reddy, and Vijaya Bhasker, K.
3. Formulation and evaluation of ibrutinib-loaded glycyrrhizic acid conjugated ovalbumin nanoparticles and ibrutinib-glycyrrhizic acid complex for improved oral bioavailability.
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Prakash Kamath P, Devanand Bangera P, Dhatri Kara D, Roychowdhury R, Tippavajhala VK, and Rathnanand M
- Abstract
The study aimed at enhancing the oral bioavailability of the BCS class 2 drug Ibrutinib (IBR), which exhibits low solubility (0.002 mg/mL) and high permeability (3.9% oral bioavailability). This was achieved through the formulation and evaluation of Ibrutinib-loaded Glycyrrhizic acid conjugated egg ovalbumin nanoparticles (IBR-GA-EA NPs) and Ibrutinib-Glycyrrhizic acid complex (IBR-GA-COMP). The formulation of Ibrutinib-Glycyrrhizic acid complex aimed to enhance the oral bioavailability of Ibrutinib. Lyophilized Ibrutinib-Glycyrrhizic acid complex was prepared and characterized through various studies including DSC, FTIR, in vitro release, and in vivo pharmacokinetics studies. DSC and FTIR confirmed successful formulation development. The nanoparticles exhibited spherical morphology with favourable characteristics: particle size of 194.10 nm, PDI of 0.22, and zeta potential of -33.96 mV. Encapsulation efficiency was 82.88%. In vitro release study displayed major improvement in drug release pattern compared to the free drug suspension. In vivo pharmacokinetic studies demonstrated 3.21-fold and 3.41-fold increase in the oral bioavailability of IBR-GA-EA NPs and IBR-GA-COMP, respectively, compared to IBR suspension alone. The formulated IBR-GA-EA NPs and IBR-GA-COMP are promising drug delivery methods as they successfully improve the solubility and oral bioavailability of Ibrutinib.
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- 2024
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4. Formulation, optimization and evaluation of ibuprofen loaded menthosomes for transdermal delivery.
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Nayak D, Shetty MM, Halagali P, Rathnanand M, Gopinathan A, John J, and Krishna Tippavajhala V
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- Animals, Male, Rats, Skin metabolism, Drug Liberation, Chemistry, Pharmaceutical methods, Drug Carriers chemistry, Arthritis, Experimental drug therapy, Carrageenan, Administration, Cutaneous, Skin Absorption drug effects, Rats, Wistar, Ibuprofen administration & dosage, Ibuprofen pharmacokinetics, Ibuprofen chemistry, Anti-Inflammatory Agents, Non-Steroidal administration & dosage, Anti-Inflammatory Agents, Non-Steroidal pharmacokinetics, Anti-Inflammatory Agents, Non-Steroidal chemistry, Edema drug therapy, Liposomes
- Abstract
The study aimed to improve the transdermal permeation of IBU utilizing menthosomes as a vesicular carrier. IBU-loaded menthosomes were formulated by thin film hydration & optimized using 2
3 factorial designs (Design Expert® version 13 software). In vitro & ex vivo skin permeation analysis of IBU-encapsulated menthosomes was studied across the rat skin sample. In vivo pharmacodynamic activity was studied in an arthritis rat model. The optimized IBU-loaded menthosomes exhibited an optimum vesicle size of 214.2 ± 2.96 nm, Zeta potential of -21.1 ± 2.72 mV, (PDI) Polydispersity Index of 0.267 ± 0.018 with Entrapment efficiency (EE%) of 78.7 ± 2.73 %. The in vitro & ex vivo skin penetration study displayed enhanced release of drug of 77.02 ± 1.0 % and 40.91 ± 0.81 % respectively, compared to conventional liposomes. In vivo pharmacodynamic study on carrageenan-induced paw edema in Wistar albino rats demonstrated superior anti-inflammatory activity of the optimized IBU-encapsulated menthosomes (**p < 0.01) and effective inhibition of paw edema (34.04 ± 0.155 %). The formalin test indicated a significant analgesic effect of optimized formulation during the chronic phase of analgesia (*p < 0.05) compared to the control group. Thus, the developed and optimized drug-loaded menthosomes could serve as a suitable vesicular delivery carrier in enhancing the transdermal delivery of other NSAID drugs., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Author(s). Published by Elsevier B.V. All rights reserved.)- Published
- 2024
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5. Navigating Skin Delivery Horizon: An Innovative Approach in Pioneering Surface Modification of Ultradeformable Vesicles.
- Author
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Nayak D, Rathnanand M, and Tippavajhala VK
- Subjects
- Humans, Animals, Nanoparticles chemistry, Surface Properties, Pharmaceutical Preparations administration & dosage, Pharmaceutical Preparations chemistry, Nanomedicine methods, Administration, Cutaneous, Drug Delivery Systems methods, Skin metabolism, Skin Absorption physiology, Skin Absorption drug effects, Drug Carriers chemistry
- Abstract
In the dynamic landscape of pharmaceutical advancements, the strategic application of active pharmaceutical ingredients to the skin through topical and transdermal routes has emerged as a compelling avenue for therapeutic interventions. This non-invasive approach has garnered considerable attention in recent decades, with numerous attempts yielding approaches and demonstrating substantial clinical potential. However, the formidable barrier function of the skin, mainly the confinement of drugs on the upper layers of the stratum corneum, poses a substantial hurdle, impeding successful drug delivery via this route. Ultradeformable vesicles/carriers (UDVs), positioned within the expansive realm of nanomedicine, have emerged as a promising tool for developing advanced dermal and transdermal therapies. The current review focuses on improving the passive dermal and transdermal targeting capacity by integrating functionalization groups by strategic surface modification of drug-loaded UDV nanocarriers. The present review discusses the details of case studies of different surface-modified UDVs with their bonding strategies and covers the recent patents and clinical trials. The design of surface modifications holds promise for overcoming existing challenges in drug delivery by marking a significant leap forward in the field of pharmaceutical sciences., (© 2024. The Author(s).)
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- 2024
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6. Efficacy and Safety of Fluconazole Mucoadhesive Patches in Human Immunodeficiency Virus-Related Oral Candidiasis.
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Deenadayalan S, Shenoy A, Kamath A, Rathnanand M, Ullal S, and Shenoy N
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- Humans, Adult, Male, Female, Middle Aged, HIV Infections drug therapy, AIDS-Related Opportunistic Infections drug therapy, Mouth Mucosa drug effects, Delayed-Action Preparations, Fluconazole therapeutic use, Fluconazole administration & dosage, Fluconazole adverse effects, Candidiasis, Oral drug therapy, Antifungal Agents therapeutic use, Antifungal Agents administration & dosage, Antifungal Agents adverse effects
- Abstract
Background: Opportunistic fungal infections like oral candidiasis account for a significant amount of morbidity in HIV disease and an indicator of immune suppression. Fluconazole is a broad-spectrum antifungal agent that has been extensively used in the management of oral, candidiasis. Highly efficacious fluconazole is also known to have systemic toxicity due to high drug interaction and hence the present study focuses on the formulation of bioadhesive film as a controlled release carrier for fluconazole., Materials and Methods: Patients were randomised, using a computer-generated list of random numbers, into one of the three groups: patients in group A received fluconazole mucoadhesive film 20 mg (sustained release) that was to be applied at bedtime and film 10 mg (intermediate release) to be applied during the day after lunch., Results: There was a significant decrease in oral discomfort, pain and clinical improvement in group A compared to group B (Fluconazole oral tablets 100 mg/day) (P = 0.005) and group C (Fluconazole Mouth rinse) (P = 0.002). The patients who received the mucoadhesive patches had a more tolerable safety profile as expected compared to the other groups., Conclusion: The bioadhesive films of fluconazole were used in HIV positive patients with oral candidiasis to overcome the problems of high dose requirement of the drug and reduce associated adverse reactions in an already immunocompromised patients and improve the quality of life., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
- Published
- 2024
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7. Unlocking the Potential of Bilosomes and Modified Bilosomes: a Comprehensive Journey into Advanced Drug Delivery Trends.
- Author
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Nayak D, Rathnanand M, and Tippavajhala VK
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- Skin, Administration, Cutaneous, Solubility, Drug Delivery Systems, Liposomes
- Abstract
Vesicular drug delivery systems have revolutionized the pharmaceutical field, offering a promising path for achieving targeted and sustained drug delivery. The oral, transdermal, and ocular routes of administration offer optimal ease in attaining desired therapeutic outcomes. However, conventional treatment strategies are all plagued with several challenges, such as poor skin permeability, ocular barriers, and gastrointestinal (GIT) degradation leading to vesicular disruption with the release of the encapsulated drug before reaching the targeted site of action. In recent years, bilosomes-stabilized nanovesicles containing bile salts have received considerable attention due to their versatility and adaptability for diverse applications. These bilayered vesicles enhance the solubility of lipophilic drugs and improve formulation stability in the gastrointestinal tract. They exhibit ultra-deformable properties, improving stratum corneum permeability, making them ideal candidates for oral and transdermal drug delivery. In addition, bilosomes find utility in topical drug delivery, making them applicable for ocular administration. Over the past decade, extensive research has highlighted bilosomes' potential as superior vesicular carriers surpassing liposomes and niosomes. Advances in this field have led to the development of modified bilosomes, such as probilosomes and surface-modified bilosomes, further enhancing their capabilities and therapeutic potential. Thus, the present review provides a comprehensive summary of bilosomes, modified bilosomes, surface modifications with their mechanism of action, formulation components, preparation methods, patents, and a wide array of recent pharmaceutical applications in oral, transdermal, and ocular drug delivery. The enhanced properties of bilosomes offer promising prospects for targeted and effective drug delivery, providing potential solutions for addressing various therapeutic challenges., (© 2023. The Author(s), under exclusive licence to American Association of Pharmaceutical Scientists.)
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- 2023
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8. In Silico Screening as a Tool to Prepare Drug-Drug Cocrystals of Ibrutinib-Ketoconazole: a Strategy to Enhance Their Solubility Profiles and Oral Bioavailability.
- Author
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Kara DD, Bangera PD, Mehta CH, Tanvi K, and Rathnanand M
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- Solubility, Biological Availability, Spectroscopy, Fourier Transform Infrared methods, Powders, X-Ray Diffraction, Calorimetry, Differential Scanning, Ketoconazole
- Abstract
Ibrutinib (IBR) is a biopharmaceutical classification system (BCS) class II drug and an irreversible Bruton's tyrosine kinase (BTK) inhibitor. IBR has an extremely low oral bioavailability due to the activity of the CYP3A4 enzyme. The current intention of the research was to enhance solubility followed by oral bioavailability of IBR using the hot melt extrusion (HME) technique by formulating drug-drug cocrystals (DDCs). Ketoconazole (KET) is an active CYP3A4 inhibitor and was selected based on computational studies and solubility parameter prediction. Differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FT-IR), powder X-ray diffraction (PXRD), thermogravimetric analysis (TGA), proton nuclear magnetic resonance (
1 H NMR), and scanning electron microscopy (SEM) evaluations were employed for estimating the formation of IBR-KET DDCs. The IBR-KET DDC system was discovered to have a hydrogen bond (H-bond) and π-π-stacking interactions, in accordance with the computational results. Further, IBR-KET DDCs showed enhanced solubility, stability, powder dissolution, in vitro release, and flow properties. Furthermore, IBR-KET-DDCs were associated with enhanced cytotoxic activity in K562-CCL-243 cancer cell lines when compared with IBR and KET alone. In vivo pharmacokinetic studies have shown an enhanced oral bioavailability of up to 4.30 folds of IBR and 2.31 folds of KET through IBR-KET-DDCs compared to that of the IBR and KET suspension alone. Thus, the prepared IBR-KET-DDCs using the HME technique stand as a favorable drug delivery system that augments the solubility and oral bioavailability of IBR along with KET., (© 2023. The Author(s).)- Published
- 2023
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9. Highlights on Cell-Penetrating Peptides and Polymer-Lipid Hybrid Nanoparticle: Overview and Therapeutic Applications for Targeted Anticancer Therapy.
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Bangera PD, Kara DD, Tanvi K, Tippavajhala VK, and Rathnanand M
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- Polymers, Amino Acid Sequence, Biological Transport, Excipients, Lipids, Cell-Penetrating Peptides
- Abstract
Polymer-lipid hybrid nanoparticles (PLHNs) have been widely used as a vehicle for carrying anticancer owing to its unique framework of polymer and lipid combining and giving the maximum advantages over the lipid and polymer nanoparticle drug delivery system. Surface modification of PLHNs aids in improved targeting and active delivery of the encapsulated drug. Therefore, surface modification of the PLHNs with the cell-penetrating peptide is explored by many researchers and is explained in this review. Cell-penetrating peptides (CPPs) are made up of few amino acid sequence and act by disrupting the cell membrane and transferring the cargos into the cell. Ideally, we can say that CPPs are peptide chains which are cell specific and are biocompatible, noninvasive type of delivery vehicle which can transport siRNA, protein, peptides, macromolecules, pDNA, etc. into the cell effectively. Therefore, this review focuses on the structure, type, and method of preparation of PLHNs also about the uptake mechanism of CPPs and concludes with the therapeutic application of PLHNs surface modified with the CPPs and their theranostics., (© 2023. The Author(s).)
- Published
- 2023
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10. Polymersomes Based Versatile Nanoplatforms for Controlled Drug Delivery and Imaging.
- Author
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Kotha R, Kara DD, Roychowdhury R, Tanvi K, and Rathnanand M
- Abstract
Drug delivery systems made based on nanotechnology represent a novel drug carrier system that can change the face of therapeutics and diagnosis. Among all the available nanoforms polymersomes have wider applications due to their unique characteristic features like drug loading carriers for both hydrophilic and hydrophobic drugs, excellent biocompatibility, biodegradability, longer shelf life in the bloodstream and ease of surface modification by ligands. Polymersomes are defined as the artificial vesicles which are enclosed in a central aqueous cavity which are composed of self-assembly with a block of amphiphilic copolymer. Various techniques like film rehydration, direct hydration, nanoprecipitation, double emulsion technique and microfluidic technique are mostly used in formulating polymersomes employing different polymers like PEO-b-PLA, poly (fumaric/sebacic acid), poly(N-isopropylacrylamide) (PNIPAM), poly (dimethylsiloxane) (PDMS), and poly(butadiene) (PBD), PTMC-b-PGA (poly (dimethyl aminoethyl methacrylate)-b-poly(l-glutamic acid)) etc. Polymersomes have been extensively considered for the conveyance of therapeutic agents for diagnosis, targeting, treatment of cancer, diabetes etc. This review focuses on a comprehensive description of polymersomes with suitable case studies under the following headings: chemical structure, polymers used in the formulation, formulation methods, characterization methods and their application in the therapeutic, and medicinal filed., Competing Interests: The authors declare no conflict of interest., (©2023 The Authors.)
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- 2023
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11. Self-nanoemulsifying drug delivery systems (SNEDDS) of anti-cancer drugs: a multifaceted nanoplatform for the enhancement of oral bioavailability.
- Author
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Shukla E, Kara DD, Katikala T, and Rathnanand M
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- Humans, Biological Availability, Drug Delivery Systems methods, Pharmaceutical Preparations chemistry, Administration, Oral, Solubility, Oils, Emulsions chemistry, Particle Size, Antineoplastic Agents, Nanoparticles chemistry
- Abstract
Objective: A significant problem faced by the health care industry today is that though there are numerous drugs available to tackle diseases like cancer, their intrinsic properties make it difficult to be delivered to patients in a feasible manner. One of the key players that have helped researchers overcome poor solubility and permeability of drugs is Nanotechnology, this article further iterates on the same., Significance: Nanotechnology is used as an umbrella term in pharmaceutics and describes under it multiple technologies. Upcoming nanotechnology is a Self Nanoemulsifying System which is considered to be a futuristic delivery system both due to its scientific simplicity and relative ease of patient delivery., Methods: Self-Nano Emulsifying Drug Delivery Systems (SNEDDS) are homogenous lipidic concoctions containing the drug solubilized in the oil phase and surfactants. The choice of components depends on the physicochemical properties of the drugs, the solubilization capability of oils and the physiological fate of the drug. The article contains further details of various methodologies that have been adopted by scientists to formulate and optimize such systems in order to make anticancer drugs orally deliverable., Results: The results that have been generated by scientists across the globe have been summarized in the article and all of the data supports the claim that SNEDDS significantly enhance the solubility and bioavailability of hydrophobic anticancer drugs., Conclusions: This article mainly provides the application of SNEDDS in cancer therapy and concludes to provide a step for the oral administration of several BCS class II and IV anticancer drugs.
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- 2023
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12. Development of novel floating delivery system based on psyllium: application on metformin hydrochloride.
- Author
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Rathnanand M, Narkhede R, Udupa N, and Kalra A
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- Delayed-Action Preparations chemistry, Metformin chemistry, Drug Delivery Systems, Hypoglycemic Agents chemistry, Plant Preparations chemistry, Plantago
- Abstract
psyllium, a medicinally active gel forming natural polysaccharide and a dietary fiber has been used as a medicine in myriad of conditions such as constipation and inflammatory bowel syndrome. One of its more recent uses that have received attention has been its ability to reduce blood sugar levels in diabetics. Therefore present work is an attempt to formulate anti diabetic drug Metformin as a controlled release floating delivery making use of pysllium as release retardant and to assist the drug in stabilizing blood sugar level in type II diabetics. Drug and excipients compatibility studies were monitored by thermal analysis using differential scanning calorimeter (DSC) and Fourier transform infra red (FTIR). The DSC thermogram and FTIR of drug and drug-polymer mixture did not reveal any incompatibility. psyllium was tried in different concentrations along with other polymers like HPMC K15M and carbopol 940 to achieve the desired release profile. The total drug: polymer ratio was kept between 1:0.4 to 1:0.5, and different polymer combinations were tried to achieve desired drug release for 12 hours. The prepared tablets were evaluated for in vitro release studies and floating behavior. Our conclusion from the present study indicated that pysllium could potentially be used in conjunction with other polymers to formulate controlled release formulations of anti-diabetic drugs to provide better control over blood glucose levels.
- Published
- 2013
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