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Sangnim T, Dheer D, Jangra N, Huanbutta K, Puri V, Sharma A. Chitosan in Oral Drug Delivery Formulations: A Review. Pharmaceutics 2023; 15:2361. [PMID: 37765329 PMCID: PMC10538129 DOI: 10.3390/pharmaceutics15092361] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/03/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023] Open
Abstract
Nanoformulations have become increasingly useful as drug delivery technologies in recent decades. As therapeutics, oral administration is the most common delivery method, although it is not always the most effective route because of challenges with swallowing, gastrointestinal discomfort, low solubility, and poor absorption. One of the most significant barriers that medications must overcome to exert a therapeutic effect is the impact of the first hepatic transit. Studies have shown that controlled-release systems using nanoparticles composed of biodegradable natural polymers significantly improve oral administration, which is why these materials have attracted significant attention. Chitosan possesses a wide variety of properties and functions in the pharmaceutical as well as healthcare industries. Drug encapsulation and transport within the body are two of its most important features. Moreover, chitosan can enhance drug efficacy by facilitating drug interaction with target cells. Based on its physicochemical properties, chitosan can potentially be synthesized into nanoparticles, and this review summarizes recent advances and applications of orally delivered chitosan nanoparticle interventions.
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Affiliation(s)
- Tanikan Sangnim
- Faculty of Pharmaceutical Sciences, Burapha University, Chonburi 20131, Thailand;
| | - Divya Dheer
- Chitkara School of Pharmacy, Chitkara University, Baddi 174103, Himachal Pradesh, India; (D.D.)
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, Punjab, India
| | - Nitin Jangra
- Chitkara School of Pharmacy, Chitkara University, Baddi 174103, Himachal Pradesh, India; (D.D.)
| | - Kampanart Huanbutta
- Department of Manufacturing Pharmacy, College of Pharmacy, Rangsit University, Pathum Thani 12000, Thailand
| | - Vivek Puri
- Chitkara School of Pharmacy, Chitkara University, Baddi 174103, Himachal Pradesh, India; (D.D.)
| | - Ameya Sharma
- Chitkara School of Pharmacy, Chitkara University, Baddi 174103, Himachal Pradesh, India; (D.D.)
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Sharma A, Kaur I, Dheer D, Nagpal M, Kumar P, Venkatesh DN, Puri V, Singh I. A propitious role of marine sourced polysaccharides: Drug delivery and biomedical applications. Carbohydr Polym 2023; 308:120448. [PMID: 36813329 DOI: 10.1016/j.carbpol.2022.120448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 11/06/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022]
Abstract
Numerous compounds, with extensive applications in biomedical and biotechnological fields, are present in the oceans, which serve as a prime renewable source of natural substances, further promoting the development of novel medical systems and devices. Polysaccharides are present in the marine ecosystem in abundance, promoting minimal extraction costs, in addition to their solubility in extraction media, and an aqueous solvent, along with their interactions with biological compounds. Certain algae-derived polysaccharides include fucoidan, alginate, and carrageenan, while animal-derived polysaccharides comprise hyaluronan, chitosan and many others. Furthermore, these compounds can be modified to facilitate their processing into multiple shapes and sizes, as well as exhibit response dependence to external conditions like temperature and pH. All these properties have promoted the use of these biomaterials as raw materials for the development of drug delivery carrier systems (hydrogels, particles, capsules). The present review enlightens marine polysaccharides providing its sources, structures, biological properties, and its biomedical applications. In addition to this, their role as nanomaterials is also portrayed by the authors, along with the methods employed to develop them and associated biological and physicochemical properties designed to develop suitable drug delivery systems.
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Affiliation(s)
- Ameya Sharma
- Chitkara School of Pharmacy, Chitkara University, Himachal Pradesh, India
| | - Ishnoor Kaur
- Chitkara College of Pharmacy, Chitkara University, Punjab, India; University of Glasgow, College of Medical, Veterinary and Life Sciences, Glasgow, United Kingdom, G12 8QQ
| | - Divya Dheer
- Chitkara School of Pharmacy, Chitkara University, Himachal Pradesh, India
| | - Manju Nagpal
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Pradeep Kumar
- Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - D Nagasamy Venkatesh
- JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Tamil Nadu, India
| | - Vivek Puri
- Chitkara School of Pharmacy, Chitkara University, Himachal Pradesh, India.
| | - Inderbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, India.
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Kaur M, Sharma A, Puri V, Aggarwal G, Maman P, Huanbutta K, Nagpal M, Sangnim T. Chitosan-Based Polymer Blends for Drug Delivery Systems. Polymers (Basel) 2023; 15:polym15092028. [PMID: 37177176 PMCID: PMC10181148 DOI: 10.3390/polym15092028] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/21/2023] [Accepted: 04/22/2023] [Indexed: 05/15/2023] Open
Abstract
Polymers have been widely used for the development of drug delivery systems accommodating the regulated release of therapeutic agents in consistent doses over a long period, cyclic dosing, and the adjustable release of both hydrophobic and hydrophilic drugs. Nowadays, polymer blends are increasingly employed in drug development as they generate more promising results when compared to those of homopolymers. This review article describes the recent research efforts focusing on the utilization of chitosan blends with other polymers in an attempt to enhance the properties of chitosan. Furthermore, the various applications of chitosan blends in drug delivery are thoroughly discussed herein. The literature from the past ten years was collected using various search engines such as ScienceDirect, J-Gate, Google Scholar, PubMed, and research data were compiled according to the various novel carrier systems. Nanocarriers made from chitosan and chitosan derivatives have a positive surface charge, which allows for control of the rate, duration, and location of drug release in the body, and can increase the safety and efficacy of the delivery system. Recently developed nanocarriers using chitosan blends have been shown to be cost-effective, more efficacious, and prolonged release carriers that can be incorporated into suitable dosage forms.
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Affiliation(s)
- Malkiet Kaur
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India
| | - Ameya Sharma
- Chitkara School of Pharmacy, Chitkara University, Himachal Pradesh 174103, India
| | - Vivek Puri
- Chitkara School of Pharmacy, Chitkara University, Himachal Pradesh 174103, India
| | - Geeta Aggarwal
- Department of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, New Delhi 110017, India
| | | | | | - Manju Nagpal
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India
| | - Tanikan Sangnim
- Faculty of Pharmaceutical Sciences, Burapha University, Chonburi 20131, Thailand
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Sharma A, Dheer D, Singh I, Puri V, Kumar P. Phytoconstituent-Loaded Nanofibrous Meshes as Wound Dressings: A Concise Review. Pharmaceutics 2023; 15:pharmaceutics15041058. [PMID: 37111544 PMCID: PMC10143731 DOI: 10.3390/pharmaceutics15041058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/12/2023] [Accepted: 03/16/2023] [Indexed: 03/29/2023] Open
Abstract
In the past, wounds were treated with natural materials, but modern wound dressings include functional elements to expedite the process of healing and to improve skin recovery. Due to their exceptional properties, nanofibrous wound dressings are now the most cutting-edge and desirable option. Similar in structure to the skin’s own extracellular matrix (ECM), these dressings can promote tissue regeneration, wound fluid transportation, and air ductility for cellular proliferation and regeneration owing to their nanostructured fibrous meshes or scaffolds. Many academic search engines and databases, such as Google Scholar, PubMed, and Sciencedirect, were used to conduct a comprehensive evaluation of the literature for the purposes of this investigation. Using the term “nanofibrous meshes” as a keyword, this paper focuses on the importance of phytoconstituents. This review article summarizes the most recent developments and conclusions from studies on bioactive nanofibrous wound dressings infused with medicinal plants. Several wound-healing methods, wound-dressing materials, and wound-healing components derived from medicinal plants were also discussed.
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Affiliation(s)
- Ameya Sharma
- Chitkara School of Pharmacy, Chitkara University, Baddi 174103, Himachal Pradesh, India
| | - Divya Dheer
- Chitkara School of Pharmacy, Chitkara University, Baddi 174103, Himachal Pradesh, India
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, Punjab, India
| | - Inderbir Singh
- Chitkara College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India
| | - Vivek Puri
- Chitkara School of Pharmacy, Chitkara University, Baddi 174103, Himachal Pradesh, India
- Correspondence: (V.P.); (P.K.)
| | - Pradeep Kumar
- Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2050, South Africa
- Correspondence: (V.P.); (P.K.)
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Kanojia N, Thapa K, Kaur G, Sharma A, Puri V, Verma N. Update on Therapeutic potential of emerging nanoformulations of phytocompounds in Alzheimer's and Parkinson's disease. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2022.104074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Huanbutta K, Rattanachitthawat N, Luangpraditkun K, Sriamornsak P, Puri V, Singh I, Sangnim T. Development and Evaluation of Ethosomes Loaded with Zingiber zerumbet Linn Rhizome Extract for Antifungal Skin Infection in Deep Layer Skin. Pharmaceutics 2022; 14:pharmaceutics14122765. [PMID: 36559259 PMCID: PMC9781750 DOI: 10.3390/pharmaceutics14122765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 12/06/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022] Open
Abstract
Skin fungal infection is still a serious public health problem due to the high number of cases. Even though medicines are available for this disease, drug resistance among patients has increased. Moreover, access to medicine is restricted in some areas. One of the therapeutic options is herbal medicine. This study aims to develop an ethosome formulation loaded with Zingiber zerumbet (L.) Smith. rhizome extract for enhanced antifungal activity in deep layer skin, which is difficult to cure. Ethosomes were successfully prepared by the cold method, and the optimized formulation was composed of 1% (w/v) phosphatidylcholine and 40% (v/v) ethanol. Transmission electron microscope (TEM) images revealed that the ethosomes had a vesicle shape with a diameter of 205.6-368.5 nm. The entrapment of ethosomes was 31.58% and could inhibit the growth of Candida albicans at a concentration of 312.5 μg/mL. Finally, the ethosome system significantly enhanced the skin penetration and retention of the active compound (zerumbone) compared with the liquid extract. This study showed that Z. zerumbet (L.) rhizome extract could be loaded into ethosomes. The findings could be carried over to the next step for clinical application by conducting further in vivo penetration and permeation tests.
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Affiliation(s)
| | | | | | - Pornsak Sriamornsak
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Vivek Puri
- School of Pharmacy, Chitkara University, Baddi 174103, India
| | - Inderbir Singh
- Chitkara College of Pharmacy, Chitkara University, Rajpura 140401, India
| | - Tanikan Sangnim
- Faculty of Pharmaceutical Sciences, Burapha University, Chonburi 20131, Thailand
- Correspondence:
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Puri V, Kanojia N, Sharma A, Huanbutta K, Dheer D, Sangnim T. Natural product-based pharmacological studies for neurological disorders. Front Pharmacol 2022; 13:1011740. [PMID: 36419628 PMCID: PMC9676372 DOI: 10.3389/fphar.2022.1011740] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 10/18/2022] [Indexed: 11/07/2023] Open
Abstract
Central nervous system (CNS) disorders and diseases are expected to rise sharply in the coming years, partly because of the world's aging population. Medicines for the treatment of the CNS have not been successfully made. Inadequate knowledge about the brain, pharmacokinetic and dynamic errors in preclinical studies, challenges with clinical trial design, complexity and variety of human brain illnesses, and variations in species are some potential scenarios. Neurodegenerative diseases (NDDs) are multifaceted and lack identifiable etiological components, and the drugs developed to treat them did not meet the requirements of those who anticipated treatments. Therefore, there is a great demand for safe and effective natural therapeutic adjuvants. For the treatment of NDDs and other memory-related problems, many herbal and natural items have been used in the Ayurvedic medical system. Anxiety, depression, Parkinson's, and Alzheimer's diseases (AD), as well as a plethora of other neuropsychiatric disorders, may benefit from the use of plant and food-derived chemicals that have antidepressant or antiepileptic properties. We have summarized the present level of knowledge about natural products based on topological evidence, bioinformatics analysis, and translational research in this review. We have also highlighted some clinical research or investigation that will help us select natural products for the treatment of neurological conditions. In the present review, we have explored the potential efficacy of phytoconstituents against neurological diseases. Various evidence-based studies and extensive recent investigations have been included, which will help pharmacologists reduce the progression of neuronal disease.
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Affiliation(s)
- Vivek Puri
- Chitkara School of Pharmacy, Chitkara University, Baddi, Himachal Pradesh, India
| | - Neha Kanojia
- Chitkara School of Pharmacy, Chitkara University, Baddi, Himachal Pradesh, India
| | - Ameya Sharma
- Chitkara School of Pharmacy, Chitkara University, Baddi, Himachal Pradesh, India
| | - Kampanart Huanbutta
- School of Pharmacy, Eastern Asia University, Rangsit, Pathum Thani, Thailand
| | - Divya Dheer
- Chitkara School of Pharmacy, Chitkara University, Baddi, Himachal Pradesh, India
| | - Tanikan Sangnim
- Faculty of Pharmaceutical Sciences, Burapha University, Muang, Chon Buri, Thailand
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Puri V, Nagpal M, Singh I, Singh M, Dhingra GA, Huanbutta K, Dheer D, Sharma A, Sangnim T. A Comprehensive Review on Nutraceuticals: Therapy Support and Formulation Challenges. Nutrients 2022; 14:4637. [PMID: 36364899 PMCID: PMC9654660 DOI: 10.3390/nu14214637] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/27/2022] [Accepted: 11/01/2022] [Indexed: 08/01/2023] Open
Abstract
Nutraceuticals are the nourishing components (hybrid of nutrition and pharmaceuticals) that are biologically active and possess capability for maintaining optimal health and benefits. These products play a significant role in human health care and its endurance, most importantly for the future therapeutic development. Nutraceuticals have received recognition due to their nutritional benefits along with therapeutic effects and safety profile. Nutraceuticals are globally growing in the field of services such as health care promotion, disease reduction, etc. Various drug nutraceutical interactions have also been elaborated with various examples in this review. Several patents on nutraceuticals in agricultural applications and in various diseases have been stated in the last section of review, which confirms the exponential growth of nutraceuticals' market value. Nutraceuticals have been used not only for nutrition but also as a support therapy for the prevention and treatment of various diseases, such as to reduce side effects of cancer chemotherapy and radiotherapy. Diverse novel nanoformulation approaches tend to overcome challenges involved in formulation development of nutraceuticals. Prior information on various interactions with drugs may help in preventing any deleterious effects of nutraceuticals products. Nanotechnology also leads to the generation of micronized dietary products and other nutraceutical supplements with improved health benefits. In this review article, the latest key findings (clinical studies) on nutraceuticals that show the therapeutic action of nutraceutical's bioactive molecules on various diseases have also been discussed.
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Affiliation(s)
- Vivek Puri
- School of Pharmacy, Chitkara University, Baddi 174103, Himachal Pradesh, India
| | - Manju Nagpal
- College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India
| | - Inderbir Singh
- College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India
| | - Manjinder Singh
- College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India
| | - Gitika Arora Dhingra
- NCRD’s Sterling Institute of Pharmacy, Nerul, Navi Mumbai 400706, Maharashtra, India
| | - Kampanart Huanbutta
- School of Pharmacy, Eastern Asia University, Pathum Thani 12110, Tanyaburi, Thailand
| | - Divya Dheer
- School of Pharmacy, Chitkara University, Baddi 174103, Himachal Pradesh, India
| | - Ameya Sharma
- School of Pharmacy, Chitkara University, Baddi 174103, Himachal Pradesh, India
| | - Tanikan Sangnim
- Faculty of Pharmaceutical Sciences, Burapha University, Chonburi 20131, Muang, Thailand
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Ashique S, Upadhyay A, Hussain A, Bag S, Chaterjee D, Rihan M, Mishra N, Bhatt S, Puri V, Sharma A, Prasher P, Singh SK, Chellappan DK, Gupta G, Dua K. Green biogenic silver nanoparticles, therapeutic uses, recent advances, risk assessment, challenges, and future perspectives. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Puri V, Sharma A, Kumar P, Dua K, Huanbutta K, Singh I, Sangnim T. Assessment of Acute Oral Toxicity of Thiolated Gum Ghatti in Rats. Polymers (Basel) 2022; 14:polym14183836. [PMID: 36145990 PMCID: PMC9506416 DOI: 10.3390/polym14183836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/03/2022] [Accepted: 09/11/2022] [Indexed: 11/16/2022] Open
Abstract
Various drug delivery systems were developed using a modified form of gum ghatti. Modifying gum ghatti using thioglycolic acid improves its mucoadhesive property, and hence, it is a suitable approach for the fabrication and development of controlled drug delivery systems. In accordance with regulatory guidelines, namely, the Organization for Economic Co-operation and Development’s (OECD) 423 guidelines, an acute oral dose toxicity study was performed to examine the toxicological effects of gum ghattiin an animal (Wistar rat) after a single oral dose administration of pure gum ghatti and thiolated gum ghatti. Orally administered pure and thiolated gum ghatti do not reveal any considerable change in the behavioral pattern, food intake, body weight, hematology, or clinical symptoms of treated animals. Furthermore, histopathological studies showed no pathological mutations in the vital organs of Wistar rats after the oral administration of single doses of both types of gumghatti (i.e., 300 mg/kg and 2000 mg/kg body weight). Whole blood clotting studies showed the low absorbance value of the modified gum (thiolated gum ghatti) in contrast to the pure gum and control, hence demonstrating its excellent clotting capability. The aforementioned toxicological study suggested that the oral administration of a single dose of pure and thiolated gum ghatti did not produce any toxicological effects in Wistar rats. Consequently, it could be a suitable and safe candidate for formulating various drug delivery systems.
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Affiliation(s)
- Vivek Puri
- Chitkara University School of Pharmacy, Chitkara University, Baddi 174103, Himachal Pradesh, India
| | - Ameya Sharma
- Chitkara University School of Pharmacy, Chitkara University, Baddi 174103, Himachal Pradesh, India
| | - Pradeep Kumar
- Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2000, South Africa
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW 2007, Australia
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007, Australia
- Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun 248007, Uttarakhand, India
| | - Kampanart Huanbutta
- School of Pharmacy, Eastern Asia University, Thanyaburi 12110, Pathumthani, Thailand
| | - Inderbir Singh
- Chitkara College of Pharmacy, Chitkara University, Patiala 140401, Punjab, India
- Correspondence: (I.S.); (T.S.)
| | - Tanikan Sangnim
- Faculty of Pharmaceutical Sciences, Burapha University, Muang 20131, Chonburi, Thailand
- Correspondence: (I.S.); (T.S.)
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Heiden B, Eaton D, Chang S, Yan Y, Schoen M, Meyers B, Kozower B, Puri V. Comparison of National Comprehensive Cancer Network and American College of Surgeons Commission on Cancer Lymph Node Sampling Guidelines for Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2021.10.171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Dabla PK, Sharma S, Mir R, Puri V. Significant Association of Antiepileptic Drug Polytherapy with Decreased FT4 Levels in Epileptic Patients. Indian J Clin Biochem 2022; 37:107-112. [PMID: 35125700 PMCID: PMC8799786 DOI: 10.1007/s12291-020-00946-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 12/08/2020] [Indexed: 01/03/2023]
Abstract
Epileptic patients have to continue anti-epileptic drugs (AED) over a long period of time which can have deleterious effects on the endocrine system including the thyroid hormones with rare check. Risk factors for the development of thyroid dysfunction are still unclear. Therefore the aim of study was to evaluate thyroid functions in epileptic patients receiving anti-epileptic drugs (AED) as monotherapy and polytherapy and to determine potential risk of low thyroid function in epileptic patients receiving treatment. This cross-sectional study included 100 epilepsy patients more than 12 years of age. Serum levels of free thyroxin (FT4), free triiodothyronine (FT3), and thyroid stimulating hormone (TSH) were evaluated in all subjects in addition to serum AED levels. TSH levels were found to be significantly higher in the polytherapy subgroup (p < 0.05) in comparison to the monotherapy group. 44% of the patients in the VPA monotherapy group had raised TSH levels and 41.2% of the patients on CBZ had low FT4. A significant negative correlation was observed between CBZ and FT4 (p < 0.05). Female sex and old age were additional risk factors detected for deranged thyroid function. Female patients with epilepsy, an older age and AED polytherapy were found to be associated with a higher risk of thyroid dysfunction. Thus, Thyroid function in these patients should be monitored closely. In conclusion, we observed significant changes in thyroid hormone levels in patients receiving antiepileptic treatment in both monotherapy and polytherapy. Elevated CBZ levels were significantly associated with decreased FT4 levels.
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Affiliation(s)
- P. K. Dabla
- Department of Biochemistry, G.B Pant Institute of Postgraduate Medical Education & Research, Associated To Maulana Azad Medical College, New Delhi, India
| | - S. Sharma
- Department of Biochemistry, Chacha Nehru Bal Chikitsalya, Associated to Maulana Azad Medical College, New Delhi, India
| | - R. Mir
- Prince Fahd Bin Sultan Research Chair, Department of Medical Lab Technology, Faculty of Applied Medical Sciences, University of Tabuk, Tabuk, Kingdom of Saudi Arabia
| | - V. Puri
- Department of Neurology, G.B Pant Institute of Postgraduate Medical Education & Research, Associated To Maulana Azad Medical College, New Delhi, India
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Agabalogun T, Heiden B, Spraker M, Badiyan S, Vlacich G, Morgensztern D, Waqar S, Kozower B, Meyers B, Robinson C, Puri V, Samson P. Post-Operative Radiation Therapy for Non-Small Cell Lung Cancer Patients With Higher Positive to Examined Lymph Node Ratio is Associated With Improved Overall Survival. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Arora G, Maman P, Sharma A, Verma N, Puri V. Systemic Overview of Microstrip Patch Antenna's for Different Biomedical Applications. Adv Pharm Bull 2021; 11:439-449. [PMID: 34513618 PMCID: PMC8421620 DOI: 10.34172/apb.2021.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 06/16/2020] [Accepted: 06/30/2020] [Indexed: 02/01/2023] Open
Abstract
Timely diagnosis is the most important parameter for the detection and hindrance with tissues (infected). Many conventional techniques are used for the determination of the chronic disease like MRI, X-ray, mammography, ultrasound and other diagnosing methods. Nevertheless, they have some limitations. We epitomize between 4 and 34 % of all carcinogenic tissues are lacking because of weak, in adequate malignant/benign cancer tissue on the contrary. So, an effective alternative method is the valid concern in the field of medical right now. Imaging with the help of patch antenna to detect chronic disease like breast cancer, oxidative stress syndrome etc. it has been proved to be a suitable potential method, and there are many works in this area. All materials have different conductivity and permittivity. With the help of these antennas, a 3D tissue structure which has different conductivity and permittivity is modelled in high-frequency structure simulator through finite element method which resolves electromagnetic field values and a microstrip patch antenna operation process. As compared with conventional antennas, micro strip patch antennas have enhanced benefits and better prospects. An integrated Antenna plays an important or crucial role for supporting many applications in biomedical, commercial and in military fields. The Antenna designed for these applications should be wideband, not sensitive to the human body. In this present review, the precise application of the Antenna in different biomedical aspects is considered. Furthermore, the author has also discussed the analytical results using simulation models and experimental results for some of the significantdisease.
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Affiliation(s)
- Govind Arora
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | | | - Ameya Sharma
- Chitkara University School of Pharmacy, Chitkara University, Himachal Pradesh, India
| | - Nitin Verma
- Chitkara University School of Pharmacy, Chitkara University, Himachal Pradesh, India
| | - Vivek Puri
- Chitkara University School of Pharmacy, Chitkara University, Himachal Pradesh, India
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Puri V, Sharma A, Kumar P, Singh I, Huanbutta K. Synthesis and Characterization of Thiolated Gum Ghatti as a Novel Excipient: Development of Compression-Coated Mucoadhesive Tablets of Domperidone. ACS Omega 2021; 6:15844-15854. [PMID: 34179628 PMCID: PMC8223422 DOI: 10.1021/acsomega.1c01328] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 06/01/2021] [Indexed: 05/08/2023]
Abstract
Mucoadhesive polymers represent a major part of site-specific and localized retention strategies in oral drug delivery. The present research was designed to synthesize and characterize a novel mucoadhesive carbohydrate polymer (thiolated gum ghatti; TGG), which was employed to formulate mucoadhesive tablets of domperidone using an industrially viable compression coating technique. Thiolation of gum ghatti was achieved by the ester formation (esterification) between the hydroxyl group and the carboxyl group of gum ghatti and thioglycolic acid. TGG was characterized by various physicochemical techniques such as FTIR, XRD, SEM, and DSC. In rheological studies, the observed viscosities of pure gum mucin were 45.45 and 71.75 mPa·s and those of the thiolated gum were 78.7 and 112.58 mPa·s, respectively, in water and simulated gastric fluid. A significant increase in viscosity for thiolated gum may be attributed to increased macromolecular interactions responsible for enhanced mucoadhesive potential of thiolated gum. In silico studies corroborate the role of mucin gum interaction and energetic stabilization for enhanced mucoadhesion properties of thiolated gum. Ex vivo mucoadhesion strength of gum ghatti- and TGG-coated tablets was found to be ranging between 45.77 ± 1.49 and 88.16 ± 1.75 and 115.32 ± 2.36 and 184.65 ± 2.07 mN, respectively. In an acute oral toxicity study, TGG did not show any toxicity on the vital organs of the Wistar rat and proved to be a safe polymer. TGG may be regarded as a promising polymer for developing different mucoadhesive drug delivery systems.
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Affiliation(s)
- Vivek Puri
- Chitkara
College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India
- Chitkara
University School of Pharmacy, Chitkara
University, Solan 174103, Himachal Pradesh, India
| | - Ameya Sharma
- Chitkara
College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India
- Chitkara
University School of Pharmacy, Chitkara
University, Solan 174103, Himachal Pradesh, India
| | - Pradeep Kumar
- Wits
Advanced Drug Delivery Platform Research Unit, Department of Pharmacy
and Pharmacology, School of Therapeutic Sciences, Faculty of Health
Sciences, University of the Witwatersrand, Johannesburg 2193, South Africa
| | - Inderbir Singh
- Chitkara
College of Pharmacy, Chitkara University, Rajpura 140401, Punjab, India
| | - Kampanart Huanbutta
- Faculty
of Pharmaceutical Sciences, Burapha University, 169, Saensook, Muang 20131, Chonburi, Thailand
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Sharma A, Puri V, Kumar P, Singh I, Huanbutta K. Development and Evaluation of Rifampicin Loaded Alginate-Gelatin Biocomposite Microfibers. Polymers (Basel) 2021; 13:polym13091514. [PMID: 34066853 PMCID: PMC8125895 DOI: 10.3390/polym13091514] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/05/2021] [Accepted: 05/06/2021] [Indexed: 12/28/2022] Open
Abstract
Various systematic phases such as inflammation, tissue proliferation, and phases of remodeling characterize the process of wound healing. The natural matrix system is suggested to maintain and escalate these phases, and for that, microfibers were fabricated employing naturally occurring polymers (biopolymers) such as sodium alginate, gelatin and xanthan gum, and reinforcing material such as nanoclay was selected. The fabrication of fibers was executed with the aid of extrusion-gelation method. Rifampicin, an antibiotic, has been incorporated into a biopolymeric solution. RF1, RF2, RF3, RF4 and RF5 were coded as various formulation batches of microfibers. The microfibers were further characterized by different techniques such as SEM, DSC, XRD, and FTIR. Mechanical properties and physical evaluations such as entrapment efficiency, water uptake and in vitro release were also carried out to explain the comparative understanding of the formulation developed. The antimicrobial activity and whole blood clotting of fabricated fibers were additionally executed, hence they showed significant results, having excellent antimicrobial properties; they could be prominent carriers for wound healing applications.
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Affiliation(s)
- Ameya Sharma
- Chitkara College of Pharmacy, Chitkara University, Chandigarh 140401, India; (A.S.); (V.P.)
- Chitkara University School of Pharmacy, Chitkara University, Solan 174103, India
| | - Vivek Puri
- Chitkara College of Pharmacy, Chitkara University, Chandigarh 140401, India; (A.S.); (V.P.)
- Chitkara University School of Pharmacy, Chitkara University, Solan 174103, India
| | - Pradeep Kumar
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2193, South Africa;
| | - Inderbir Singh
- Chitkara College of Pharmacy, Chitkara University, Chandigarh 140401, India; (A.S.); (V.P.)
- Correspondence: (I.S.); (K.H.)
| | - Kampanart Huanbutta
- Faculty of Pharmaceutical Sciences, Burapha University, 169, Saensook, Muang, Chonburi 20131, Thailand
- Correspondence: (I.S.); (K.H.)
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Aggarwal G, Nagpal M, Sharma A, Puri V, Dhingra GA. Upcoming Drifts in Bio-similars. Curr Rev Clin Exp Pharmacol 2021; 16:39-51. [PMID: 32379595 DOI: 10.2174/1574884715666200507131943] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/14/2020] [Accepted: 03/17/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Biopharmaceuticals such as biological, medicinal products have been in clinical use over the past three decades and have benefited the therapy of degenerative and critical metabolic diseases. It is forecasted that the market of biologics will be going to increase at a rate of ˃ 20% per year, and by 2025, more than 50% of new drug approvals might be biological products. The increasing utilization of the biologics necessitates cost control, especially for innovator products that have a lengthy period of exclusive usage. As the first wave of biopharmaceuticals is expired or set to expire, it has led to various opportunities for the expansion of bio-similars i.e. copied versions of original biologics with same the biological activity. Development of biosimilars is expected to promote market competition, meet worldwide demand, sustain the healthcare systems and maintain the incentives for innovation. METHODS Appraisal of published articles from peer-reviewed journals, PubMed literature, latest news and guidelines from European Medicine Agency, US Food Drug Administration (FDA) and India were used to identify data for review. RESULTS Main insights into the quality requirements concerning biologics, the current status of regulation of bio-similars and upcoming challenges lying for the upgrading of the marketing authorization of biosimilars have been incorporated. Compiled literature on the therapeutic status, regulatory guidelines and the emerging trends and opportunities of biosimilars has been thoroughly stated. CONCLUSION Updates on biosimilars will support to investigate the possible impact of bio-similars on the healthcare market.
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Affiliation(s)
- Geeta Aggarwal
- Delhi Pharmaceutical Sciences and Research University, New Delhi-110017, India
| | - Manju Nagpal
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Ameya Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Vivek Puri
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
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Sharma A, Puri V, Kumar P, Singh I. Rifampicin-Loaded Alginate-Gelatin Fibers Incorporated within Transdermal Films as a Fiber-in-Film System for Wound Healing Applications. Membranes (Basel) 2020; 11:membranes11010007. [PMID: 33374601 PMCID: PMC7822433 DOI: 10.3390/membranes11010007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 01/09/2023]
Abstract
The various biological and molecular cascades including different stages or phases such as inflammation, tissue proliferation, and remodeling phases, which significantly define the wound healing process. The natural matrix system is suggested to increase and sustain these cascades. Biocompatible biopolymers, sodium alginate and gelatin, and a drug (Rifampicin) were used for the preparation of fibers into a physical crosslinking solution using extrusion-gelation. The formed fibers were then loaded in transdermal films for wound healing applications. Rifampicin, an antibiotic, antibacterial agent was incorporated into fibers and afterwards the fibers were loaded into transdermal films. Initially, rifampicin fibers were developed using biopolymers including alginate and gelatin, and were further loaded into polymeric matrix which led to the formation of transdermal films. The transdermal films were coded as TF1, TF2, TF3 and TF4.The characterization technique, FTIR, was used to describe molecular transitions within fibers, transdermal films, and was further corroborated using SEM and XRD. In mechanical properties, the parameters, such as tensile strength and elongation-at-break (extensibility), were found to be ranged between 2.32 ± 0.45 N/mm2 to 14.32 ± 0.98 N/mm2 and 15.2% ± 0.98% to 30.54% ± 1.08%. The morphological analysis firmed the development of fibers and fiber-loaded transdermal films. Additionally, physical evaluation such as water uptake study, water transmission rate, swelling index, moisture content, and moisture uptake study were executed to describe comparative interpretation of the formulations developed. In vivo studies were executed using a full thickness cutaneous wound healing model, the transdermal films developed showed higher degree of contraction, i.e., 98.85% ± 4.04% as compared to marketed formulation (Povidone). The fiber-in-film is a promising delivery system for loading therapeutic agents for effective wound care management.
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Affiliation(s)
- Ameya Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (A.S.); (V.P.)
- Chitkara University School of Pharmacy, Chitkara University, Himachal Pradesh 174103, India
| | - Vivek Puri
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (A.S.); (V.P.)
- Chitkara University School of Pharmacy, Chitkara University, Himachal Pradesh 174103, India
| | - Pradeep Kumar
- Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutic, Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa;
| | - Inderbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (A.S.); (V.P.)
- Correspondence:
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Sharma A, Mittal A, Puri V, Kumar P, Singh I. Curcumin-loaded, alginate-gelatin composite fibers for wound healing applications. 3 Biotech 2020; 10:464. [PMID: 33088660 DOI: 10.1007/s13205-020-02453-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 09/23/2020] [Indexed: 10/23/2022] Open
Abstract
The wound healing process is characterized by varied biological and molecular cascades including inflammation, tissue proliferation, and remodeling phase. To augment and maintain these cascades, an all-natural matrix system is proposed. Biocompatible biopolymers, sodium alginate and gelatin, were employed to prepare microfibers via extrusion-gelation into a physical crosslinking solution. Curcumin, an anti-inflammatory, anti-oxidant and wound healing agent, was loaded into the fibers as a natural bioactive compound. Curcumin-loaded composite microfibers and blank microfibers were fabricated using biopolymers such as sodium alginate and gelatin. The formulation batches were coded as A1G9-A10G0 according to the varied concentrations of sodium alginate and gelatin. The molecular transitions within the composite microfibers were characterized using FTIR and were further corroborated using molecular mechanics analysis. In mechanical properties tensile strength and elongation-at-break (extensibility) were ranging between 1.08 ± 0.01 to 3.53 ± 0.41 N/mm2 and 3.89 ± 0.18 to 0.61 ± 0.03%. The morphological analysis confirmed the formation and fabrication of the microfibers. In addition, physical evaluation including matrix degradation and entrapment efficiency was performed to give a comparative account of various formulations. The water uptake capacity of the blank and curcumin-loaded composite fibers was found to be in the range of 30.77 ± 2.17 to 100.00 ± 5.99 and 22.34 ± 1.11 to 56.34 ± 4.68, respectively. Composite microfibers presented a cumulative release of 85% in 72 h, confirming the prolonged release potential of the composite fibers. The drug release followed an anomalous (non-Fickian) release behavior asserting the role of degradation and diffusion. In an in vivo full-thickness cutaneous wound model, the composite microfibers provided higher degree of contraction 96.89 ± 3.76% as compared to the marketed formulation (Vicco turmeric cream). In conclusion, this all-natural, alginate-gelatin-curcumin composite has the potential to be explored as a cost-effective wound healing platform.
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Samson P, Perez M, Carpenter L, Roach M, Bradley J, Kozower B, Meyers B, Puri V, Robinson C. Comparing Prospective Quality of Life Assessments Among Clinical Stage I Non-Small Cell Lung Cancer Patients Receiving Surgery versus Stereotactic Body Radiation Therapy at One Year. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Samson P, Roach M, Bradley J, Carpenter L, Kozower B, Meyers B, Puri V, Robinson C. Increased Rates of Serious Adverse Events among Stage I Non-small Cell Lung Cancer Surgical Patients who were Predicted to Receive Stereotactic Body Radiation Therapy by Treatment Allocation Modeling. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sharma A, Puri V, Kumar P, Singh I. Biopolymeric, Nanopatterned, Fibrous Carriers for Wound Healing Applications. Curr Pharm Des 2020; 26:4894-4908. [DOI: 10.2174/1381612826666200701152217] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 04/11/2020] [Indexed: 12/15/2022]
Abstract
Background:
Any sort of wound injury leads to skin integrity and further leads to wound formation.
Millions of deaths are reported every year, which contributes to an economical hamper world widely, this accounts
for 10% of death rate that insight into various diseases.
Current Methodology:
Rapid wound healing plays an important role in effective health care. Wound healing is a
multi-factorial physiological process, which helps in the growth of new tissue to render the body with the imperative
barrier from the external environment. The complexity of this phenomenon makes it prone to several abnormalities.
Wound healing, as a normal biological inherent process occurs in the body, which is reaped through four
highly defined programmed phases, such as hemostasis, inflammation, proliferation, and remodeling and these
phases occur in the proper progression. An overview, types, and classification of wounds along with the stages of
wound healing and various factors affecting wound healing have been discussed systematically. Various biopolymers
are reported for developing nanofibers and microfibers in wound healing, which can be used as a therapeutic
drug delivery for wound healing applications. Biopolymers are relevant for biomedical purposes owing to
biodegradability, biocompatibility, and non- toxicity. Biopolymers such as polysaccharides, proteins and various
gums are used for wound healing applications. Patents and future perspectives have been given in the concluding
part of the manuscript. Overall, applications of biopolymers in the development of fibers and their applications in
wound healing are gaining interest in researchers to develop modified biopolymers and tunable delivery systems
for effective management and care of different types of wounds.
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Affiliation(s)
- Ameya Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Vivek Puri
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Pradeep Kumar
- Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa
| | - Inderbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
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Puri V, Nagpal M, Sharma A, Thakur GS, Singh M, Aggarwal G. Development of binary dispersions and nanocomposites of irbesartan with enhanced antihypertensive activity. ACTA ACUST UNITED AC 2020; 10:269-278. [PMID: 32983943 PMCID: PMC7502911 DOI: 10.34172/bi.2020.34] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 11/05/2019] [Accepted: 11/13/2019] [Indexed: 11/25/2022]
Abstract
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Introduction: Irbesartan (IBS), an angiotensin II receptor (AT1 subtype) antagonist which blocks the vasoconstrictor and aldosterone-secreting effects of angiotensin II by selective binding to AT1 angiotensin II receptor. It belongs to BCS class II drug (low aqueous solubility and high permeability). Improvement of dissolution characteristics of the drug by formulating is being investigated in the current study.
Methods: Solid dispersions (SD) formulations were prepared by the melting fusion technique and nanocomposites (NC) were prepared by a single emulsion technique. Eight batches of SD and three batches of NC were formulated in three ratios of drug to polymer (1:1, 1:2, and 1:3). The batches were evaluated for equilibrium solubility studies, Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), X-ray diffraction (XRD), scanning electron microscopy (SEM), field emission SEM (FESEM), transmission electron microscopy (TEM), and in vitro dissolution studies.
Results: Solubility studies revealed maximum solubility at a 1:2 ratio of solid dispersions and a 1:1 ratio of nanocomposites. No drug-polymer interaction was observed in FTIR results. DSC, SEM, and XRD analysis revealed changes in drug crystallinity i.e. conversion to the amorphous state of drugs. Nanosize of particles in the NC1 batch was confirmed in TEM studies. Solid dispersions and nanocomposites showed significant enhancement of dissolution in comparison to that of the pure drug (100% drug release in approximately 1 hour).
Conclusion: Nanocomposites proved superior carriers to solid dispersions in terms of the dissolution enhancement. Further, in vivo studies indicated that the induction of systolic and diastolic blood pressure in the optimized formulation (NC1) was significantly decreased in comparison to the disease control group (P <0.01) at all time intervals along with pure drug (P <0.05).
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Affiliation(s)
- Vivek Puri
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Manju Nagpal
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Ameya Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | | | - Manjinder Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Geeta Aggarwal
- Delhi Pharmaceutical Sciences and Research University, New Delhi-110017, India
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Puri V, Sharma A, Kumar P, Singh I. Thiolation of Biopolymers for Developing Drug Delivery Systems with Enhanced Mechanical and Mucoadhesive Properties: A Review. Polymers (Basel) 2020; 12:polym12081803. [PMID: 32796741 PMCID: PMC7464630 DOI: 10.3390/polym12081803] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/03/2020] [Accepted: 08/04/2020] [Indexed: 01/09/2023] Open
Abstract
Biopolymers are extensively used for developing drug delivery systems as they are easily available, economical, readily modified, nontoxic, biodegradable and biocompatible. Thiolation is a well reported approach for enhancing mucoadhesive and mechanical properties of polymers. In the present review article, for the modification of biopolymers different thiolation methods and evaluation/characterization techniques have been discussed in detail. Reported literature on thiolated biopolymers with enhanced mechanical and mucoadhesive properties has been presented conspicuously in text as well as in tabular form. Patents filed by researchers on thiolated polymers have also been presented. In conclusion, thiolation is an easily reproducible and efficient method for customization of mucoadhesive and mechanical properties of biopolymers for drug delivery applications.
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Affiliation(s)
- Vivek Puri
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (V.P.); (A.S.)
- Chitkara University School of Pharmacy, Chitkara University, Himachal Pradesh 174103, India
| | - Ameya Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (V.P.); (A.S.)
- Chitkara University School of Pharmacy, Chitkara University, Himachal Pradesh 174103, India
| | - Pradeep Kumar
- Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2193, South Africa;
| | - Inderbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India; (V.P.); (A.S.)
- Correspondence:
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Bedair B, Witt C, Byers D, Kulkarni H, Alexander-Brett J, Tague L, Nava R, Puri V, Kreisel D, Trulock E, Hachem R. Lung Protective Ventilation and Primary Graft Dysfunction. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Sinha N, Puri V, Kumar V, Nada R, Rastogi A, Jha V, Puri S. SAT-164 EVALUATION OF miR-663a EXPRESSION IN HUMAN KIDNEY PROXIMAL TUBULAR CELLS DERIVED EXOSOMES AND ITS PARENT CELLS UNDER DIABETIC STATE. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Bhat N, Samson P, Robinson C, Park H, Roach M, Badiyan S, Puri V, Bradley J, Vlacich G. Palliative Treatment Utilization and Outcomes in Elderly Patients with Locally Advanced Esophageal Carcinoma: A Review of the National Cancer Database. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Dabla P, Shikha S, Puri V. Effect of antiepileptic drug therapy on calcium metabolism- a study in North India. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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29
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Samson P, Robinson C, Kennedy W, Gabani P, Roach M, Bradley J, Kozower B, Puri V, Meyers B. Treatment Allocation Modeling and Risk-Stratified Outcomes for Clinical Stage I Non-small Cell Lung Cancer Patients Receiving Surgery versus Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.01.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Furuya Y, Witt C, Trulock E, Byers D, Kulkarni H, Tague L, Aguilar P, Kreisel D, Puri V, Gelman A, Hachem R. Extracorporeal Photopheresis (ECP) in the Management of Chronic Lung Allograft Dysfunction. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Bain K, Fester K, Iuppa J, Bakos K, Mittler B, Richardson K, Aguilar P, Alexander-Brett J, Byers D, Kulkarni H, Trulock E, Witt C, Yusen R, Puri V, Kreisel D, Hachem R. A Pilot Randomized Placebo Controlled Trial of Inhaled Beclomethasone after Community-Acquired Respiratory Viral (CARV) Infection in Lung Transplant Recipients (LTR). J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Samson P, Roach M, Bradley J, Carpenter L, Kozower B, Meyers B, Puri V, Robinson C. Comprehensive Baseline Clinical Assessments in Stage I Non-Small Cell Lung Cancer Patients May Facilitate Treatment Allocation Between Stereotactic Body Radiation Therapy and Surgery. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Kaur R, Sharma A, Puri V, Singh I. Preparation and characterization of biocomposite films of carrageenan/locust bean gum/montmorrillonite for transdermal delivery of curcumin. Bioimpacts 2018; 9:37-43. [PMID: 30788258 PMCID: PMC6378101 DOI: 10.15171/bi.2019.05] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 05/25/2018] [Accepted: 09/22/2018] [Indexed: 11/30/2022]
Abstract
Introduction: Skin can be used as a site for local and systemic drug administration. Diffusion of drugs through the skin has led to the development of different transdermal drug delivery systems. Curcumin is a wound healing and anti-inflammatory agent. Curcumin was incorporated into biocomposite films of carrageenan (κC)/locust bean gum (LBG)/ montmorillonite (MMT) prepared by a solvent casting method. Methods: Film-forming solutions were prepared by adding and 2.5% v/v of propylene glycol and MMT (30% w/w). The curcumin loaded polymer composite transdermal films were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) spectroscopy and X-ray diffraction (XRD) analysis. Mechanical properties in terms of tensile strength and extensibility were studied. Films were also evaluated for moisture content, moisture uptake, thickness, folding endurance, swelling ratio and water vapor transmission rate (WVTR). Results: κC and κC/L40 showed the highest percent cumulative release of 80.42±1.61% and 69.38±1.26% among all of the polymer composite transdermal films in 8 hours and 24 hours respectively. Conclusion: In vitro release profiles showed that increasing concentration of LBG and MMT sustained the release of the drug from the polymer composite transdermal films. Decreased percent cumulative release as the concentration of LBG and MMT increases in polymer composite transdermal film.
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Affiliation(s)
| | | | | | - Inderbir Singh
- Department of Pharmaceutics, Chitkara College of Pharmacy, Chitkara University, Rajpura-140401, Patiala, Punjab, India
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Sharma A, Puri V, Kakkar V, Singh I. Formulation and Evaluation of Silymarin-Loaded Chitosan-Montmorilloite Microbeads for the Potential Treatment of Gastric Ulcers. J Funct Biomater 2018; 9:E52. [PMID: 30201932 PMCID: PMC6164251 DOI: 10.3390/jfb9030052] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 08/28/2018] [Accepted: 09/04/2018] [Indexed: 12/13/2022] Open
Abstract
Silymarin-loaded mucoadhesive microbeads of Chitosan-MMT were developed using the ionotropic gelation technique. Characterization of the microbeads was performed by DSC, XRD, SEM, and FTIR techniques. In vitro mucoadhesion and drug release studies; gastroprotective studies including the measurement of ulcerative index; the determination of gastric wall mucus; and the determination of percentage protection, biochemical, and histopathological studies were also performed. Microbeads batches were evaluated for particle size (120⁻140 µm), actual drug content, (49.36⁻58.18%) and entrapment efficiency (72.52⁻92.39%).Biochemical estimation of myeloperoxidase was found to be 0.10⁻0.75 µmoles/g/tissue. Significant reduction in the ulcerative index showed the gastroprotective effect of the formulation. Silymarin-loaded beads of Chitosan-MMT were found to exhibit good mucoadhesion and efficient release of the drug, and were found to be a promising drug carrier system for the treatment of gastric ulcers.
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Affiliation(s)
- Ameya Sharma
- Department of Pharmaceutics, Chitkara College of Pharmacy, Chitkara University, Patiala 140401, India.
| | - Vivek Puri
- Department of Pharmaceutics, Chitkara College of Pharmacy, Chitkara University, Patiala 140401, India.
| | - Vandita Kakkar
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160101, India.
| | - Inderbir Singh
- Department of Pharmaceutics, Chitkara College of Pharmacy, Chitkara University, Patiala 140401, India.
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Annamalai AK, Gill AJ, Shinto A, Sivakumar R, Singhi PK, Prabhu VA, Gopalakrishnan C, Chelian M, Sridhar S, Shanthi R, Puri V, Gururaj N, Srinivasan KG, Clifton-Bligh R, Gurnell M. Oncogenic osteomalacia. QJM 2018; 111:421-422. [PMID: 29319792 DOI: 10.1093/qjmed/hcy004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- A K Annamalai
- Department of Endocrinology, Ashwin Speciality Hospital, Madurai, Tamil Nadu, India
| | - A J Gill
- Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, University of Sydney, and NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, Sydney, NSW, Australia
| | - A Shinto
- Department of Nuclear Medicine, Kovai Medical Centre Hospital, Coimbatore, Tamil Nadu, India
| | - R Sivakumar
- Department of Orthopaedics, Preethi Hospital, Madurai, Tamil Nadu, India
| | - P K Singhi
- Department of Orthopaedics, Preethi Hospital, Madurai, Tamil Nadu, India
| | - V A Prabhu
- Department of Surgery and Anaesthesiology, Ashwin Speciality Hospital, Madurai, Tamil Nadu, India
| | - C Gopalakrishnan
- Department of Surgery and Anaesthesiology, Ashwin Speciality Hospital, Madurai, Tamil Nadu, India
| | - M Chelian
- Department of Surgery and Anaesthesiology, Ashwin Speciality Hospital, Madurai, Tamil Nadu, India
| | - S Sridhar
- Department of Endocrinology, Madurai Medical College, Madurai, Tamil Nadu, India
| | - R Shanthi
- Department of Pathology, Aravind Eye Care Hospitals, Madurai, Tamil Nadu, India
| | - V Puri
- RIA, Department of Laboratory Medicine, Hinduja Hospital, Mumbai, Maharashtra, India
| | - N Gururaj
- CSI College of Research and Dental Sciences, Madurai, Tamilnadu, India
| | | | - R Clifton-Bligh
- Department of Endocrinology, Kolling Institute, Royal North Shore Hospital, Sydney, NSW, Australia
| | - M Gurnell
- Wellcome Trust-MRC Institute of Metabolic Science, University of Cambridge and NIHR Cambridge Biomedical Research Centre, Addenbrooke's Hospital, Cambridge, UK
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Tsui K, Aguilar P, Byers D, Yusen R, Furuya Y, Tague L, Gelman A, Puri V, Kreisel D, Trulock E, Hachem R. Risk Factors for the Development of Donor-specific Antibodies and Their Impact on Outcomes After Lung Transplantation. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Samson P, Robinson C, Lockhart A, Roach M, Parikh P, Puri V, Vlacich G, Bradley J. Concurrent Chemoradiation is Associated With Improved Overall Survival Over Radiation Alone in the Treatment of Non-operative Clinical T1N0M0 Esophageal Cancer. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Samson P, Kozower B, Roach M, DeWees T, Carpenter L, Gal K, Bradley J, Meyers B, Puri V, Robinson C, Crabtree T. Development of a Prospective Clinical Database for Stage I Non–small Cell Lung Cancer Patients to Identify High-Risk Individuals Appropriate for Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Samson P, Keogan K, Robinson C, Bradley J, Roach M, Crabtree T, Kozower B, Puri V, Meyers B. Treatment Allocation Modeling for Clinical Stage I Non–small Cell Lung Cancer Patients to Facilitate the Shared Decision Making Process for Stereotactic Body Radiation Therapy Versus Surgical Resection. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Abstract
Paroxysmal nocturnal hemoglobinuria (PNH) is a rare, acquired, potentially life-threatening disease of blood, characterized by complement-induced intravascular hemolytic anemia and thrombosis. PNH can sometimes present directly with renal manifestations, without showing any hematological manifestation. It, therefore, becomes essential for clinicians and pathologists to be aware of the spectrum of renal changes in PNH. The aim of this study was to document the morphologic changes observed in renal biopsies in patients with PNH. This is an observational study. We report three cases that presented with acute or chronic renal insufficiency and were suspected as PNH on viewing their renal biopsy in light of their clinical and laboratory details. All the three cases were confirmed as PNH on the basis of flow cytometric analysis of CD55 and CD59. Renal biopsy in these patients showed a variety of morphologic changes, however the most consistent finding was moderate-to-heavy siderosis in their kidneys. PNH per se may be difficult to diagnose clinically and sometimes present directly with renal manifestations. It is, therefore, prudent for nephrologists and nephropathologists to be aware of the spectrum of renal changes in PNH.
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Affiliation(s)
- V Puri
- Department of Pathology, University College of Medical Sciences, New Delhi, India
| | - A Gandhi
- Department of Pathology, University College of Medical Sciences, New Delhi, India
| | - S Sharma
- Department of Pathology, University College of Medical Sciences, New Delhi, India
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Robinson C, Samson P, Bradley J, Roach M, DeWees T, Waqar S, Baggstrom M, Govindan R, Higgins K, Simone C, Grover S, Puri V, Morgensztern D. Patterns of Care and Survival for Early Versus Delayed Radiation Therapy (RT) in Limited-Stage Small Cell Lung Cancer (LS-SCLC): A Review of the National Cancer Data Base. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Affiliation(s)
- S Sharma
- Department of Neurology, GIPMER, New Delhi, 110002, India.
| | - A Gupta
- Department of Neurology, GIPMER, New Delhi, 110002, India.
| | - A Deshmukh
- Department of Neurology, GIPMER, New Delhi, 110002, India.
| | - V Puri
- Department of Neurology, GIPMER, New Delhi, 110002, India.
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Raemdonck DV, Levvey B, Edwards L, Stehlik J, Erasmus M, Glanville A, Hertz M, Hopkins P, Chambers D, Musk M, Budev M, Mason D, Puri V, Yusen R, D’Ovidio F, Keshavjee S, Cypel M, Snell G. Characteristics of Various Categories of Controlled Donors after Circulatory Death Do Not Affect Outcome after Lung Transplantation; an Analysis of ISHLT DCD Registry Data. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Choudhury M, Singh S, Puri V, Nain M. Ileocaecal Metastasis from Carcinoma Cervix presenting with bowel obstruction: A rare case report. Indian J Cancer 2016; 52:179-80. [PMID: 26853393 DOI: 10.4103/0019-509x.175808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
| | | | - V Puri
- Department of Pathology, Lady Hardinge Medical College, New Delhi, India
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Abstract
The understanding of the genomics of the renal tissue has gathered a considerable interest and is making rapid progress. The molecular mechanisms as well as the precise function of the associated molecular components toward renal pathophysiology have recently been realized. For the cystic kidney disease, the regulation of gene expression affecting epithelial cells proliferation, apoptosis as well as process of differentiation/de-differentiation represent key molecular targets. For the cystic disorders, molecular targets have been identified, which besides lending heterogeneity to cysts may also provide tools to unravel their functional importance to understand the renal tissue homeostasis. This review focuses on providing comprehensive information about the transcriptional regulatory role of hepatocyte nuclear factor-1β, a homeoprotein, as well as its interacting partners in renal tissue development and pathophysiology.
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Affiliation(s)
- V Singh
- Department of Biochemistry, Panjab University, Chandigarh, India
| | - S K Singla
- Department of Biochemistry, Panjab University, Chandigarh, India
| | - V Jha
- Department of Nephrology, PGIMER, Chandigarh, India
| | - V Puri
- Centre for Systems Biology and Bioinformatics, Under University Institute of Emerging Areas in Science and Technology, Panjab University, Chandigarh, India
| | - S Puri
- Biotechnology Branch, University Institute of Engineering and Technology, Chandigarh, India ; Centre for Stem Cell and Issue Engineering, University Institute of Emerging Areas in Science and Technology, Panjab University, Chandigarh, India
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Thomas S, Babu RJ, Agarwal K, Puri V, Jain M, Andley M, Tudu SK. Effect of neoadjuvant chemotherapy on stromal CD10 antigens in breast cancer - a preliminary study. Indian J Cancer 2013; 50:46-51. [PMID: 23713046 DOI: 10.4103/0019-509x.112299] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION CD10 is a zinc-dependent peptidase (metalloproteinase). Stromal CD10 expression in breast cancer correlates with poor prognosis, oestrogen receptor negativity and higher grade. CD10 may be a potential target of new cancer therapies as it is involved in cleavage of doxorubicin. AIM To evaluate the effect of neo-adjuvant anthracycline-based chemotherapy on status of stromal CD10 antigens in breast cancer. MATERIALS AND METHODS Patients with invasive breast cancer scheduled for anthracycline-based neo-adjuvant chemotherapy were included in the study. Tumor stromal CD10 expression was estimated before and after 3 cycles of chemotherapy, and change in its status was correlated with clinical response to chemotherapy. RESULTS 16 out of the 29 patients had strong CD10 expression; in these 16 patients, 14 (87.5%) were hormone receptor negative, and 14 (87.5%) had HER-2/neu overexpression. Stromal CD10 expression remained same in 13 out of 29 cases (44.83%) after chemotherapy. There was a change in CD10 expression in the remaining 16 cases (55.17%); in 13 cases (44.83%) it decreased from its pre-chemotherapy status, while its expression increased in 3 cases (10.34%). In cases of complete and partial clinical response, there was no increase in CD10 expression. Where CD10 expression had increased after chemotherapy, there was either a minor response or no response to chemotherapy. In 13 cases where CD10 expression had decreased, 12 cases had a clinical response to chemotherapy. CONCLUSIONS Strong CD10 expression correlates with hormone receptor negativity and HER-2/neu overexpression. Stromal CD10 expression in breast cancer is not static and changes with neo-adjuvant anthracycline-based chemotherapy. A stable or decrease in CD10 expression correlates with complete or partial clinical response, while an increase in CD10 expression appears to correlate with poor clinical response. A larger series is required to determine the clinical significance of these changes. As stromal CD10 expression and its change with chemotherapy may have a prognostic significance, they should be documented in breast cancer patients before and after chemotherapy.
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Affiliation(s)
- S Thomas
- Department of Surgery, Lady Hardinge Medical College, Shaheed Bhagat Singh Marg, New Delhi, India
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Swaminathan V, Prakasam S, Puri V, Srinivasan M. Role of salivary epithelial toll-like receptors 2 and 4 in modulating innate immune responses in chronic periodontitis. J Periodontal Res 2013; 48:757-65. [PMID: 23679005 DOI: 10.1111/jre.12066] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/28/2013] [Indexed: 01/21/2023]
Abstract
BACKGROUND AND OBJECTIVE Chronic periodontitis is initiated by sequential colonization with a broad array of bacteria and is perpetuated by an immune-inflammatory response to the changing biofilm. Host recognition of microbes is largely mediated by toll-like receptors (TLRs), which interact with conserved pathogen-associated molecular patterns. Based on ligand recognition, TLR-2 and TLR-4 interact with most periodontal pathogens. Extracrevicular bacterial reservoirs, such as the oral epithelial cells, contribute to the persistence of periodontitis. Human saliva is a rich source of oral epithelial cells that express functional TLRs. In this study we investigated the role of salivary epithelial cell (SEC) TLR-2 and TLR-4 in patients with generalized chronic periodontitis. MATERIAL AND METHODS Unstimulated whole saliva (UWS) was collected from patients with generalized chronic periodontitis and from healthy individuals after obtaining informed consent. Epithelial cells isolated from each UWS sample were assessed for TLR-2, TLR-4, peptidoglycan recognition protein (PGRP)-3 and PGRP-4 by quantitative real-time PCR. In addition, the SECs were stimulated in vitro with microbial products for up to 24 h. The culture supernatant was assessed for cytokines by ELISA. RESULTS Stimulation with TLR-2- or TLR-4-specific ligands induced cytokine secretion with differential kinetics and up-regulated TLR2 and TLR4 mRNAs, respectively, in cultures of SECs from patients with periodontitis. In addition, the SECs from patients with periodontitis exhibited reduced PGRP3 and PGRP4 mRNAs, the TLR-responsive genes with antibacterial properties. CONCLUSION SECs derived from the UWS of patients with chronic periodontitis are phenotypically distinct and could represent potential resources for assessing the epithelial responses to periodontal pathogens in the course of disease progression and persistence.
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Affiliation(s)
- V Swaminathan
- Department of Periodontics and Allied Health, School of Dentistry, Indiana University Purdue, University at Indianapolis, Indianapolis, IN, USA
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Cypel M, Levvey B, Van Raemdonck D, Erasmus M, Love R, Mason D, Glanville A, Stehlik J, Herz M, Whitson B, Puri V, Dark J, Hopkins P, Snell G, Keshavjee S. Favorable Outcomes of Donation after Cardiac Death in Lung Transplantation: A Multicenter Study. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Tripathi M, Jain DC, Devi MG, Jain S, Saxena V, Chandra PS, Radhakrishnan K, Behari M, Gupta M, Puri V, Mehndiratta MM, Bala K, Anand KS, Rawat S, Shah PU, Gulati S, Johri S, Nadkarni VV, Chandra PS, Bachani D. Need for a national epilepsy control program. Ann Indian Acad Neurol 2012; 15:89-93. [PMID: 22566719 PMCID: PMC3345606 DOI: 10.4103/0972-2327.94989] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Revised: 02/08/2012] [Accepted: 02/14/2012] [Indexed: 11/29/2022] Open
Abstract
This article briefly outlines the proposed national epilepsy control program. The content of the article is based on four meetings held by invitation of the Ministry of Health. Invitees by ministry – Drs. D. C. Jain, M. Gourie Devi, V. Saxena, S. Jain, P. Satish. Chandra, M. Gupta, K. Bala, V. Puri, K. S. Anand, S. Gulati, S. Johri, P. S. Chandra, M. Behari, K. Radhakrishnan, D. Bachani. Presentations were made by Dr. M. Tripathi.The program will involve all neurologists across the country in teaching and training at state levels and a central monitoring committee.
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Affiliation(s)
- M Tripathi
- Department of Neurology, All India Institute of Medical Sciences, Delhi, India
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Abstract
Metastatic tuberculous abscesses and gummas are unusual forms of cutaneous tuberculosis. They result from haematogeneous spread of the mycobacterium from a primary focus during a period of impaired immunity. A 5-year-old boy is reported who presented with spinal tuberculosis and bilateral subcutaneous swelling of the cheeks owing to tuberculous gummas.
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Affiliation(s)
- S Shukla
- Departments of Pathology and Pediatrics, Lady Hardinge Medical College, New Delhi, India
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