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Khatik R, Dwivedi P, Junnuthula VR, Sharma K, Chuttani K, Mishra AK, Dwivedi AK. Potential in vitro and in vivo colon specific anticancer activity in a HCT-116 xenograft nude mice model: targeted delivery using enteric coated folate modified nanoparticles. RSC Adv 2015. [DOI: 10.1039/c4ra15114c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ES–FA–CU–GdNP drug delivery system has been developed for specific targeting in colon cancer and has the promise to address overexpressed FRs.
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Khandelwal K, Pachauri SD, Arya A, Pawar VK, Joshi T, Dwivedi P, Ahmad H, Singh B, Sharma K, Kanojiya S, Chourasia MK, Saxena AK, Dwivedi AK. Improved oral bioavailability of novel antithrombotic S002-333 via chitosan coated liposomes: a pharmacokinetic assessment. RSC Adv 2015. [DOI: 10.1039/c5ra01543j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
S002-333, a novel anti-thrombotic agent, exhibits excellent platelet mediated antithrombotic action and subsequently has no effect on the coagulation cascade.
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Gupta PK, Jaiswal AK, Asthana S, Verma A, Kumar V, Shukla P, Dwivedi P, Dube A, Mishra PR. Self Assembled Ionically Sodium Alginate Cross-Linked Amphotericin B Encapsulated Glycol Chitosan Stearate Nanoparticles: Applicability in Better Chemotherapy and Non-Toxic Delivery in Visceral Leishmaniasis. Pharm Res 2014; 32:1727-40. [DOI: 10.1007/s11095-014-1571-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 11/10/2014] [Indexed: 01/09/2023]
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Shukla P, Verma AK, Dwivedi P, Yadav A, Gupta PK, Rath SK, Mishra PR. Moxifloxacin-loaded nanoemulsions having tocopheryl succinate as the integral component improves pharmacokinetics and enhances survival in E. coli-induced complicated intra-abdominal infection. Mol Pharm 2014; 11:4314-26. [PMID: 25317848 DOI: 10.1021/mp5003762] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In the present work, a novel nanoemulsion laden with moxifloxacin has been developed for effective management of complicated intra-abdominal infections. Moxifloxacin nanoemulsion fabricated using high pressure homogenization was evaluated for various pharmaceutical parameters, pharmacokinetics (PK) and pharmacodynamics (PD) in rats with E. coli-induced peritonitis and sepsis. The developed nanoemulsion MONe6 (size 168 ± 28 nm and zeta potential (ZP) 24.78 ± 0.45 mV, respectively) was effective for intracellular delivery and sustaining the release of MOX. MONe6 demonstrated improved plasma (AUC(MONe6/MOX) = 2.38-fold) and tissue pharmacokinetics of MOX (AUC(MONe6/MOX) = 2.63 and 1.47 times in lung and liver, respectively). Calculated PK/PD index correlated well with a reduction in bacterial burden in plasma as well as tissues. Enhanced survival on treatment with MONe6 (65.44%) and as compared to the control group (8.22%) was a result of reduction in lipid peroxidation, neutrophil migration, and cytokine levels (TNF-α and IL6) as compared to untreated groups in the rat model of E. coli-induced sepsis. Parenteral nanoemulsions of MOX hold a promising advantage in the therapy of E. coli-induced complicated intra-abdominal infections and is helpful in the prevention of further complications like septic shock and death.
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Samsonov M, Archuadze S, Oshodi T, Dwivedi P. Preclinical safety assessment of a RANKL blocker, RPH-203 following subcutaneous (SC) administration of repeated doses in the Cynomolgus monkey. Toxicol Lett 2014. [DOI: 10.1016/j.toxlet.2014.06.569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Khandelwal K, Pachauri SD, Singh S, Pandey RR, Ahmed H, Dwivedi P, Arya A, Kalasadan AK, Dikshit DK, Dwivedi AK. Assay Method for Quality Control and Stability Studies of a New Antithrombotic Agent (S007-867). J BIOMATER TISS ENG 2014. [DOI: 10.1166/jbt.2014.1211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Shukla P, Dwivedi P, Gupta PK, Mishra PR. Optimization of novel tocopheryl acetate nanoemulsions for parenteral delivery of curcumin for therapeutic intervention of sepsis. Expert Opin Drug Deliv 2014; 11:1697-712. [PMID: 25046368 DOI: 10.1517/17425247.2014.932769] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE The objective of this study is to develop a nanostructured parenteral delivery system, laden with curcumin (CUR), for the therapeutic intervention of sepsis and associated pathologies. METHODS Nanoemulsions were fabricated using sonication and speed homogenization. Size and zeta potential were evaluated by dynamic light scattering and transmission electron microscopy analysis. Pharmacodynamic and pharmacokinetic studies were performed on a rat model of lipopolysaccharide (LPS)-induced sepsis. RESULTS The drug content of optimized nanoemulsion (F5) formulation (particle size 246 ± 08 nm, polydispersity index (PDI) of 0.120, zeta potential of -41.1 ± 1.2 mV) was found to be 1.25 mg/ml. In vitro release studies demonstrated that F5 was able to sustain the release of CUR for up to 24 h. Minimal hemolysis and cellular toxicity demonstrated its suitability for intravenous administration. Significant reduction of inflammatory mediator levels was mediated through enhanced uptake by in RAW 264.7 and THP-1 in absence/presence of LPS. Nanoemulsion resulted in an improvement of plasma concentration (AUCF5/AUC CUR = 8.80) and tissue distribution of CUR in rats leading to a reduction in LPS-induced lung and liver injury due to less neutrophil migration, reduced TNF-α levels and oxidative stress (demonstrated by levels of lipid peroxides as well as carbonylated proteins) as confirmed by histopathological studies. CONCLUSION The findings suggest that the therapeutic performance (i.e., reduction in oxidative damage in tissues) of CUR can be enhanced by employing tocol acetate nanoemulsions (via improving pharmacokinetics and tissue distribution) as a platform for drug delivery in sepsis-induced organ injury.
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Khatik R, Dwivedi P, Shukla A, Srivastava P, Rath SK, Paliwal SK, Dwivedi AK. Development, characterization and toxicological evaluations of phospholipids complexes of curcumin for effective drug delivery in cancer chemotherapy. Drug Deliv 2014; 23:1067-78. [DOI: 10.3109/10717544.2014.936988] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Gupta PK, Asthana S, Jaiswal AK, Kumar V, Verma AK, Shukla P, Dwivedi P, Dube A, Mishra PR. Exploitation of Lectinized Lipo-Polymerosome Encapsulated Amphotericin B to Target Macrophages for Effective Chemotherapy of Visceral Leishmaniasis. Bioconjug Chem 2014; 25:1091-102. [DOI: 10.1021/bc500087h] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Gupta V, Singh S, Srivarstava M, Ahmad H, Pachauri SD, Khandelwal K, Dwivedi P, Dwivedi AK. Effect of polydimethylsiloxane and ethylcellulose on in vitro permeation of centchroman from its transdermal patches. Drug Deliv 2014; 23:113-22. [DOI: 10.3109/10717544.2014.905882] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Gupta V, Singh S, Srivastava M, Ahmad H, Pachauri SD, Khandelwal K, Dwivedi P, Dwivedi AK. Preparation and Characterization of Depot Injectable Microspheres of Centchroman Using Ethyl Cellulose. J BIOMATER TISS ENG 2014. [DOI: 10.1166/jbt.2014.1170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Khandelwal K, Pachauri SD, Tiwari K, Pandey RR, Ahmed H, Dwivedi P, Dwivedi AP, Pratap R, Dwivedi AK. Assay Method for Quality Control and Stability Studies of a New Antidiabetic Agent (S-001-469). J BIOMATER TISS ENG 2014. [DOI: 10.1166/jbt.2014.1166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Dwivedi P, Khatik R, Khandelwal K, Taneja I, Raju KSR, Wahajuddin, Paliwal SK, Dwivedi AK, Mishra PR. Pharmacokinetics study of arteether loaded solid lipid nanoparticles: an improved oral bioavailability in rats. Int J Pharm 2014; 466:321-7. [PMID: 24657144 DOI: 10.1016/j.ijpharm.2014.03.036] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 03/14/2014] [Accepted: 03/18/2014] [Indexed: 11/26/2022]
Abstract
Arteether (ART), an artemisinin derivative, is a life saving drug for multiple drug resistant malaria. It has a deliverance effect in Falciparum malaria and cerebral malaria. We have prepared solid lipid nanoparticles (SLN) by high pressure homogenization (HPH) technique. ART-loaded SLN (ART-SLN) has been produced reproducibly with homogeneous particle size. ART-SLN was characterized for their size measured by Zetasizer Nano-ZS, Malvern, UK and by high resolution transmission electron microscopy (HR-TEM) and which was found to be 100 ± 11.2 nm. The maximum percentage entrapment efficiency (%EE) determined with the high-performance liquid chromatography (HPLC) has been found to be 69 ± 4.2% in ART-SLN-3. The release pattern from ART-SLN revealed that the release of ART is slow but time-dependent manner, which is desirable as it will help to protect the acid degradation of ART in stomach. The percentage cytotoxicity of blank SLN has been found within the acceptable range. The pharmacokinetics results indicated that ART-SLN-3 absorption has been significantly enhanced in comparison to ART in aqueous suspension and ART in ground nut oil (GNO) in rats. The % relative bioavailability (RB%) of ART-SLN to the ART in GNO and ART in aqueous suspension in rats was 169.99% and 7461%, respectively which was found to be significantly high in both the cases. From the results, it can be concluded that ART-SLN offers a new approach to improve the oral bioavailability of ART.
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Khatik R, Dwivedi P, Khare P, Kansal S, Dube A, Mishra PR, Dwivedi AK. Development of targeted 1,2-diacyl-sn-glycero-3-phospho-l-serine-coated gelatin nanoparticles loaded with amphotericin B for improved in vitro and in vivo effect in leishmaniasis. Expert Opin Drug Deliv 2014; 11:633-46. [PMID: 24606222 DOI: 10.1517/17425247.2014.889678] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE The principle objective of this study was to develop 1,2-diacyl-sn-glycero-3-phospho-l-serine (PS)-coated gelatin nanoparticles (GNPs) bearing amphotericin B (AmB) for specific targeting to the macrophages involved in visceral leishmaniasis (VL). METHOD The two-step desolvation method has been used for the preparation of GNPs with AmB, which was further coated with PS (PS-AmB-GNPs). The targeting potential of it was compared with uncoated AmB-loaded GNPs (AmB-GNPs) for in vitro and in vivo macrophage uptake. RESULTS The results of flow cytometric data revealed enhanced uptake of PS-AmB-GNPs in J774A.1 macrophage cell lines compared with AmB-GNPs. In vivo organ distribution studies in Wistar rats demonstrated a significantly higher extent of accumulation of PS-AmB-GNPs compared with AmB-GNPs in macrophage-rich organs, particularly in liver and spleen. The in vivo anti-leishmanial activity of plain AmB, AmB-GNPs and PS-AmB-GNPs was tested against VL in Leishmania donovani-infected hamsters. Highly significant anti-leishmanial activity (p < 0.05 compared with AmB-GNPs) was observed with PS-AmB-GNPs, causing 85.3 ± 7.89% inhibition of splenic parasitic burden. AmB-GNPs and plain AmB caused only 71.0 ± 3.87 and 50.5 ± 5.12% parasite inhibitions, respectively, in Leishmania-infected hamsters (p < 0.05 for PS-AmB-GNPs versus plain AmB and AmB-GNPs versus plain AmB). CONCLUSION The objective of the preparation was achieved and high accumulation of AmB in liver and spleen has been found, which resulted in enhanced anti-leishmanial activity.
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Tripathi P, Verma A, Dwivedi P, Sharma D, Kumar V, Shukla R, Banala VT, Pandey G, Pachauri SD, Singh SK, Mishra PR. Formulation and Characterization of Amphotericin B Loaded Nanostructured Lipid Carriers Using Microfluidizer. J BIOMATER TISS ENG 2014. [DOI: 10.1166/jbt.2014.1159] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sharma VK, Dwivedi P, Dubey AK. Correlation of serum phosphate with carotid intimal-medial thickness in chronic kidney disease patients. Indian J Nephrol 2014; 24:15-9. [PMID: 24574625 PMCID: PMC3927184 DOI: 10.4103/0971-4065.125050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
While increased serum phosphate concentration is a significant risk factor for vascular calcification, it is unclear whether serum phosphate is also a risk factor for increased arterial wall thickness in chronic kidney disease (CKD) patients. Using B-mode ultrasonography, we examined carotid intimal-medial thickness (CIMT) of CKD patients and analyzed risk factors for increased IMT with regard to the effect of serum phosphate. One hundred patients were enrolled (73 patients without diabetes, 27 patients with diabetes; 57 men, 43 women; age, 46.2 ± 15.3 years). CIMT of patients with diabetes was significantly greater than that of patients without diabetes (0.78 ± 0.250 versus 0.66 ± 0.178 mm; P < 0.0001). For the group of all patients, CIMT correlated strongly and significantly with serum phosphate (r = 0.911; P < 0.001). In multiple regression analysis serum phosphate level (β = 0.356; <0.0001) was found to be a significant independent risk factor for increased CIMT, in addition to other independent risk factors, including advanced age, higher systolic blood pressure, urinary albumin and the presence of diabetes (R2 = 0.956; P < 0.00001). In conclusion, high serum phosphate level is a significant and independent factor associated with advanced arteriosclerosis in CKD patients with and without diabetes in addition to advanced age.
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Gupta PK, Jaiswal AK, Kumar V, Verma A, Dwivedi P, Dube A, Mishra PR. Covalent Functionalized Self-Assembled Lipo-Polymerosome Bearing Amphotericin B for Better Management of Leishmaniasis and Its Toxicity Evaluation. Mol Pharm 2014; 11:951-63. [DOI: 10.1021/mp400603t] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Dwivedi P, Khatik R, Khandelwal K, Shukla R, Paliwal SK, Dwivedi AK, Mishra PR. Preparation and Characterization of Solid Lipid Nanoparticles of Antimalarial Drug Arteether for Oral Administration. J BIOMATER TISS ENG 2014. [DOI: 10.1166/jbt.2014.1148] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Khatik R, Dwivedi P, Upadhyay M, Patel VK, Paliwal SK, Dwivedi AK. Toxicological Evaluation and Targeting Tumor Cells Through Folic Acid Modified Guar Gum Nanoparticles of Curcumin. J BIOMATER TISS ENG 2014. [DOI: 10.1166/jbt.2014.1147] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Dwivedi P, Khatik R, Khandelwal K, Srivastava R, Taneja I, Rama Raju KS, Dwivedi H, Shukla P, Gupta P, Singh S, Tripathi R, Paliwal SK, Wahajuddin W, Dwivedi AK, Mishra PR. Self-nanoemulsifying drug delivery systems (SNEDDS) for oral delivery of arteether: pharmacokinetics, toxicity and antimalarial activity in mice. RSC Adv 2014. [DOI: 10.1039/c4ra09267h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
The nontoxic SNEDDS of arteether, improved arteether bioavailability and anti-malarial efficacy.
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Khandelwal K, Pachauri SD, Zaidi S, Dwivedi P, Sharma AK, Singh C, Dwivedi AK. Assay method for quality control and stability studies of a new antimalarial agent (CDRI 99/411). J Pharm Anal 2013; 3:335-340. [PMID: 29403836 PMCID: PMC5761009 DOI: 10.1016/j.jpha.2013.04.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
CDRI compound no. 99/411 is a potent 1,2,4-trioxane antimalarial candidate drug under development at our Institute. An HPLC method for determination of CDRI 99/411 with its starting material and intermediates has been developed and validated for in process quality control and stability studies. The analytical performance parameters such as linearity, precision, accuracy, specificity, limit of detection (LOD) and lower limit of quantification (LLOQ) were determined according to International Conference on Harmonization ICH Q2(R1) guidelines. HPLC separation was achieved on a RP-select B Lichrosphere® column (250 mm×4 mm, 5 μm, Merck) using water containing 0.1% glacial acetic acid and acetonitrile as the mobile phase in a gradient elution. The eluents were monitored by a photo diode array detector at 245 and 275 nm. Based on signal to noise ratio of 3 and 10 the LOD of CDRI 99/411 was 0.55 µg/mL, while the LLOQ was 1.05 µg/mL. The calibration curves were linear in the range of 1.05-68 µg/mL. Precision of the method was determined by inter- and intra-assay variations within the acceptable range.
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Krishnan A, Srivastava R, Dwivedi P, Ng N, Byass P, Pandav CS. Non-specific sex-differential effect of DTP vaccination may partially explain the excess girl child mortality in Ballabgarh, India. Trop Med Int Health 2013; 18:1329-37. [PMID: 24103109 DOI: 10.1111/tmi.12192] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To test the hypothesis that a gender differential exists in the effect on child mortality of BCG, DTP, measles vaccine as administered under programme conditions in Ballabgarh HDSS area. METHODS All live births in 28 villages of Ballabgarh block in North India from 2006 to 2011 were followed until 31 December 2011 or 36 months of age whichever was earlier. The period of analysis was divided into four time periods based on eligibility for vaccines under the national immunisation schedule (BCG for tuberculosis, primary and booster doses of diphtheria-tetanus-pertussis and measles). Cox proportional hazards regression was used to assess the association between sex and risk of mortality by vaccination status using age as the timescale in survival analysis and adjusting for wealth index, access to health care, the presence of a health facility in the village, parental education, type of family, birth order of the child and year of birth. RESULTS 702 deaths (332 boys and 370 girls) occurred among 12,142 children in the cohort in the 3 years of follow-up giving a cumulative mortality rate of 57.5 per 1000 live births with 35% excess girl child mortality. Age at vaccination for the four vaccines did not differ by sex. There was significant excess mortality among girls after immunisation with DTP, for both primary (HR 1.65; 95% CI:1.17-2.32) and DTPb (2.21; 1.24-3.93) vaccinations. No significant excess morality among girls was noted after exposure to BCG 1.06 (0.67-1.67) or measles 1.34 (0.85-2.12) vaccine. CONCLUSION This study supports the contention that DTP vaccination is partially responsible for higher mortality among girls in this study population.
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Sharma M, Malik R, Verma A, Dwivedi P, Banoth GS, Pandey N, Sarkar J, Mishra PR, Dwivedi AK. Folic acid conjugated guar gum nanoparticles for targeting methotrexate to colon cancer. J Biomed Nanotechnol 2013; 9:96-106. [PMID: 23627072 DOI: 10.1166/jbn.2013.1474] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
It was envisaged to develop surface modified Guar Gum Nanoparticles (GGNP) with Folic acid (FA) charged with methotrexate (MTX) to target the colon specifically. The MTX loaded FA functionalized GGNP (MTX-FA-GGNP) have been prepared by emulsion crosslinking method. These surface modified nanoparticles were compared with unmodified MTX loaded GGNP (MTX-GGNP). The developed formulations were evaluated for size and size distribution, zeta potential, Differential Scanning Calorimetry (DSC), release profile and uptake studies. The nanoparticles have been found to have average size of 325 nm in diameter having polydispersity index (PDI) 0.177 indicating mono-disperse particles. The zeta potential of the particles was found to be -36.9 mV. The percent growth inhibition of Caco 2 cells with MTX-FA-GGNP was found to be better than MTX-GGNP indicating folate receptor mediated uptake. The MTX-GGNP protects the release of MTX in upper gastrointestinal tract while maximum release of MTX occurred in simulated colonic fluids of pH 6.8. The in vivo uptake studies revealed preferential uptake of nanoparticles formulation in the colon. These studies provide evidences that MTX-FA-GGNP holds promise to address colorectal cancer over-expressing folate receptors. This prototype formulation enjoys dual advantage of having propensity to release the drug in the colon and in the conditions of colorectal carcinoma; it could be better localized and targeted with improved therapy due to over-expression of folate receptors.
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Bhosale BB, Patil V, Muddu V, Singh R, Dwivedi P, Noronha V, Joshi A, Ghosh J, Gupta S, Banavali S, Prabhash K. Predicting complications of chemotherapy-induced febrile neutropenia: A single-center experience. J Clin Oncol 2013. [DOI: 10.1200/jco.2013.31.15_suppl.e20678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e20678 Background: Identifying the parameters associated with increased complications would help to formulate a cost-effective and rational therapy in patients with chemotherapy induced febrile neutropenia. Methods: We prospectively collected data from January 2007-December 2011 of consecutive episodes of neutropenic fever at our centre. Clinical features, laboratory characteristics and MASCC score were analysed to identify patients at higher risk for developing complications. Complications were defined as either of the following event: failure of first line antibiotics, organ failure, delay in next cycle of chemotherapy, inpatient admission and death. Results: Three hundred and eighty-eight febrile neutropenia (FN) episodes in 373 patients were included, 256 episodes of FN in hematolymphoid malignancies and 132 episodes of FN in solid tumours. The median age was 31 years (11-76 years). Two hundred and forty-four (65.4%) patients were male. One hundred forty-nine patients (39.94%) had FN during previous cycles, while primary GCSF prophylaxis was used for 205 (52.84%) cases. The median haemoglobin, nadir neutrophil count & median number of days with severe neutropenia (< 1X109/L) were 7.9 gm/dl, 0.04X109/L and 4 days respectively. A clinical focus of infection was present in 174 (44.8%) episodes, with gastrointestinal being the commonest in 70episodes (40.23%). High risk MASCC score (<21) was present in 156 episodes (40%). Complications were seen in 133(34%) instances. On Univariate analysis, age, type of malignancy, prophylactic growth factor use, clinical focus of infection, day of FN, MASCC score, nadir Hb and platelet count were significantly associated with complications. All predictive factors except age and nadir Hb could independently predict complication on multivariate analysis. Conclusions: Clinical and laboratory parameters in addition to MASCC score could help in identifying patients with FN who require hospitalisation and more intensive management strategies.
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Prabu P, Dwivedi P, Sharma A. Toxicopathological studies on the effects of aflatoxin B1, ochratoxin A and their interaction in New Zealand White rabbits. ACTA ACUST UNITED AC 2013; 65:277-86. [DOI: 10.1016/j.etp.2011.09.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Revised: 08/23/2011] [Accepted: 09/21/2011] [Indexed: 10/16/2022]
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