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Srikanth D, Ganapaty S, Reddy PM, Sowjanya G, Sunitha K. Separation and Determination of Process Related Impurities in Palbociclib: A Rp-hplc Study. JPRI 2021. [DOI: 10.9734/jpri/2021/v33i44b32700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Aims: A new gradient RP-HPLC method was developed for the separation and determination of process related impurities in Palbociclib.
Methodology: The chromatographic separation was achieved on a Inert sustain swift (C18) column using a mobile phase comprising of perchloric acid and acetonitrile in a gradient mode at a flow rate of 1 mL/min. over a runtime of 50 minutes. All the eluants were monitored at 230 nm. The optimized method was validated as per ICH guidelines for various parameters.
Results: The linearity of the method was proposed in the range of LOQ to 250 % for the drug and its impurities by subjecting the data obtained to statistical analysis using correlation coefficient model (r > 0.99). The method also gave acceptable recovery of all the four impurities at each level and was found to be accurate. The % RSD obtained in the method precision and intermediate precision were less than 2% depicting the precision of the method. The LOD and LOQ values were calculated based on the signal to noise ratio and are indicating the sensitivity of the method. The specificity of the method was checked in the presence of process related impurities and also degradants generated by exposing to a variety of forced degradation conditions.
Conclusion: The proposed RP-HPLC method for the determination of process related impurities of Palbociclib could be routinely used in the quality control testing.
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Srikanth D, Ganapaty S, Reddy PM, Sunitha K, Sowjanya G. Method Development for the Control of Potential Genotoxic Impurities in Vigabatrin Using Gas Chromatography Techniques and Mass Spectroscopy Detector. JPRI 2021. [DOI: 10.9734/jpri/2021/v33i44a32634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Aim: To develop a sensitive headspace GC-MS method for the determination of potential genotoxic impurities in Vigabatrin.
Place and Duration of Study: The study was performed in SIONC Pharmaceuticals, Visakhapatnam from June 2020 to March 2021.
Methodology: The impurities were determined by selected ion monitoring mode using VF -WAXms (30 mts length, 0.25 mm internal diameter, 1.0 µ film thickness) column. Helium gas was used as carrier gas with a column flow of 1.0 mL/min. and injector temperature maintained at 220 0C. Oven Temperature, loop temperature and transfer line temperature were maintained in the head space at 70oC, 90oC and 100oC respectively.
Results: The linearity of the method was proposed in the range of LOQ to 150 % for the genotoxic impurities by subjecting the data obtained to statistical analysis using linear regression model (r2 > 0.99). The method also gave acceptable recovery of all the four impurities at each level and was found to be accurate. The % RSD obtained in the method precision and intermediate precision were less than 11% depicting the precision of the method. The LOD and LOQ values were calculated based on the signal to noise ratio and are indicating the sensitivity of the method. The specificity of the method was checked for blank interference at the retention time of respective impurities.
Conclusion: The results proved that the proposed headspace GC-MS method for the study of potential genotoxic impurities of Vigabatrin was sensitive, precise and accurate and could be routinely used in the quality control testing of the active pharmaceutical ingredient.
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Ganapaty S. Concurrent cryptococcal meningitis and pulmonary cryPtococcosis in an immunocompetent patient: A case report. Pathology 2018. [DOI: 10.1016/j.pathol.2017.11.005] [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]
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Ganapaty S. Osteoclastic giant cell tumour of the pancreas: A case report. Pathology 2018. [DOI: 10.1016/j.pathol.2017.11.006] [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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Bandla J, Ganapaty S. Development and Validation of a Stability-indicating Method for the Simultaneous Estimation of Sofosbuvir and Ledipasvir by RP-HPLC. Indian J Pharm Sci 2018. [DOI: 10.4172/pharmaceutical-sciences.1000471] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Bandla J, Ganapaty S. Stability indicating RP-HPLC method development and validation for the simultaneous determination of Sofosbuvir and Velpatasvir in tablet dosage forms. ACTA ACUST UNITED AC 2017. [DOI: 10.30750/ijpbr.5.4.3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Stability indicating RP-HPLC method was developed for the simultaneous quantitation of Sofosbuvir and Velpatasvir in its pharmaceutical dosage form and validated. The drugs were separated on Discovery C18 (150mm x 4.6mm, 5μ) column using 0.01N potassium dihydrogen phosphate buffer and acetonitrile (50:50%v/v) as mobile phase on isocratic mode. The mobile phase is pump into the column at flow rate of 1.0ml/min and column oven temperature is maintained at 30ºC. The drugs were detected at a wavelength 240nm. The retention time for Sofosbuvir and Velpatasvir were found to be 2.32min and 3.34min respectively. The developed method is validated in accordance with ICH guidelines. The method was found to be accurate, precise, specific and robust. The method obeys Beer’s law at a concentration range of 100μg/ml – 600μg/ml of Sofosbuvir and 25μg/ml – 150μg/ml of Velpatasvir, with correlation coefficient of 0.999 for both the drugs. The drugs were found to be stable and less prone to degradation when they are subjected to various stress conditions.
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Das S, Ganapaty S. Phytochemical Evaluation of Roots of Polygonum viscosum Buch-ham. Indian J Pharm Sci 2015; 77:352-6. [PMID: 26180283 PMCID: PMC4502152 DOI: 10.4103/0250-474x.159675] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 02/12/2014] [Revised: 01/13/2015] [Accepted: 06/01/2015] [Indexed: 11/04/2022] Open
Abstract
Phytochemical evaluation of the chloroform extract of roots of Polygonum viscosum has yielded six compounds, stigmasterol, 7,4-dimethylquercetin, kaempferol, quercetin, myricetin and scutellarein. Among the six compounds isolated and characterized by chemical and spectral (UV, NMR and Mass) analysis in the present phytochemical evaluation, stigmasterol was not reported earlier from P. viscosum. The compounds, 7,4'-dimethylquercetin, quercetin and scutellarein were reported from P. hydropiper. Kaempferol from P. amphibium, P. aviculare, P. convolvulus, P. hydropiper, P. lapathifolium and P. persicari a and myricetin from P. aviculare and P. lapathifolium were also reported earlier. This appers to be the first report of the occurrence of all the six compounds from P. viscosum.
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Affiliation(s)
- S Das
- Sri Sai Aditya Institute of Pharmaceutical Sciences and Research, A. D. B. Road, Surampalem, Peddapuram-533 437, India
| | - S Ganapaty
- Pharmacognosy and Phytochemistry Division. A.U. College of Pharmaceutical Sciences, Andhra University, Visakhapatnam-530 003, India
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Chandrashekhar VM, Ganapaty S, Ramkishan A, Narsu ML. Neuroprotective activity of gossypin from Hibiscus vitifolius against global cerebral ischemia model in rats. Indian J Pharmacol 2013; 45:575-80. [PMID: 24347764 PMCID: PMC3847246 DOI: 10.4103/0253-7613.121367] [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] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Revised: 11/26/2012] [Accepted: 09/18/2013] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVES The objective of this study is to evaluate the neuroprotective effect of gossypin (isolated from Hibiscus vitifolius) against global cerebral ischemia/reperfusion (I/R) injury-induced oxidative stress in rats. MATERIALS AND METHODS Sprague Dawlet rats of wither gender were used in the study. Evaluation of cerbroprotective activity of bioflavonoid gossypin (in 5, 10 and 20 mg/kg oral doses) isolated from H. vitifolius was carried out by using the global cerebral I/R model by bilateral carotid artery occlusion for 30 min, followed by 24 h reperfusion. The antioxidant enzymatic and non-enzymatic levels were estimated along with histopathological studies. RESULT Gossypin showed dose-dependent neuroprotective activity by significant decrease in lipid peroxidation (P < 0.001) and increase in the superoxide dismutase, catalase, glutathione and total thiol levels in gossypin treated groups when compared to control group. Cerebral infarction area was markedly reduced in gossypin treated groups when compared to control group. CONCLUSION Gossypin showed potent neuroprotective activity against global cerebral I/R injury-induced oxidative stress in rats.
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Affiliation(s)
- V. M. Chandrashekhar
- Department of Pharmacology, Hanagal Shri Kumareshwar College of Pharmacy, Bagalkot, Karnataka, India
| | - S. Ganapaty
- Pharmacognosy and Phytochemistry Division, College of Pharmaceutical Sciences, Andhra University, Visakhapatnam, India
| | - A. Ramkishan
- CDSCO, Subzonal Office, Ahmedabad, Gujarat, India
| | - M. Laxmi Narsu
- Center of Biotechnology, Institute of Science and Technology, JNT University, Hyderabad, Andhra Pradesh, India
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Reddy SK, Kumar SA, Kumar VD, Ganapaty S. Anti-inflammatory and Analgesic Activities of <i>Amorphophallus bulbifer</i> (Roxb) <i>Kunth</i> Whole Plant. TROP J PHARM RES 2013. [DOI: 10.4314/tjpr.v11i6.14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Yogesh HS, Chandrashekhar VM, Katti HR, Ganapaty S, Raghavendra HL, Gowda GK, Goplakhrishna B. Anti-osteoporotic activity of aqueous-methanol extract of Berberis aristata in ovariectomized rats. J Ethnopharmacol 2011; 134:334-338. [PMID: 21182919 DOI: 10.1016/j.jep.2010.12.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2010] [Revised: 11/08/2010] [Accepted: 12/11/2010] [Indexed: 05/30/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Traditionally Berberis aristata is employed for its supposed properties in treatment of joint pain and also used in alleviating symptoms of menopause. AIM OF THE STUDY The aim of the present study is to evaluate the antiosteoporotic effect of Berberis aristata in ovariectomized (OVX) rats. MATERIALS AND METHODS Sprague-Dawley rats were divided into sham and OVX groups. The OVX rats were further divided into four groups, which received standard estrogen (0.0563 mg/kg) and 100, 300, and 500 mg/kg aqueous-methanol extract of Berberis aristata, daily for 42 days. The uterine weight, bone loss, ash content, biomechanical, biochemical and histopathological observation were carried out for antiosteoporotic activity. RESULTS The experimental animals treated with Berberis aristata aqueous-methanol extract showed dose dependent activity. The significant increase in uterine weight, femur BMD, ash content and lumbar hardness were observed. In addition, increased levels of calcium and phosphorus in serum and significant decreased in urine were observed as compared to control OVX group. The histopathological results also confirm the protective effect of extract. CONCLUSION The present findings strongly suggest that Berberis aristata possess the potent antiosteoporosis activity in ovariectomized rats and substantiates the ethnic use in treatment of postmenopausal osteoporosis.
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Affiliation(s)
- H S Yogesh
- Department of Pharmacology, Hanagal Shri Kumareshawara College of Pharmacy, BVVS Campus, Bagalkot 587101, Karnataka, India.
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Kotra V, Ganapaty S, Adapa SR. ChemInform Abstract: Synthesis of a New Series of Quinolinyl Chalcones as Anticancer and Antiinflammatory Agents. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/chin.201051138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ganapaty S, Chandrashekhar VM, Narsu ML. Evaluation of anti-allergic activity of gossypin and suramin in mast cell-mediated allergy model. Indian J Biochem Biophys 2010; 47:90-95. [PMID: 20521621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The mast cell-mediated allergic reactions are involved in many allergic diseases, such as asthma, allergic rhinitis and sinusitis. Stimulation of mast cells initiates the process of degranulation, resulting in the release of mediators such as histamine and an array of inflammatory cytokines. In this report, we investigated the effect of gossypin (a biflavonoid) and suramin (a synthetic polysulphonated naphtylurea) on the mast cell-mediated allergy model, and studied the possible mechanism of their action. Both gossypin and suramin inhibited (P<0.001) compound 48/80-induced systemic anaphylaxis reactions, antiprurities (P<0.001) and reduced the histamine release in rats. Further, both showed significant (P<0.001) protection against rat peritoneal mast cells activated by compound 48/80. Thus, our findings provide evidence that gossypin and suramin inhibit mast cell-derived allergic reactions.
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Affiliation(s)
- S Ganapaty
- Pharmacognosy and Phytochemistry Division, College of Pharmaceutical Sciences, Andhra University, Visakhapatnam 530 003, Andhra Pradesh, India.
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Chandrashekhar VM, Ranpariya VL, Ganapaty S, Parashar A, Muchandi AA. Neuroprotective activity of Matricaria recutita Linn against global model of ischemia in rats. J Ethnopharmacol 2010; 127:645-651. [PMID: 20025954 DOI: 10.1016/j.jep.2009.12.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2009] [Revised: 12/02/2009] [Accepted: 12/03/2009] [Indexed: 05/28/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Traditionally, the whole plant is used for various diseases, including neuronal disorders. AIM OF THE STUDY To evaluate the neuroprotective effect of Matricaria recutita L. against global cerebral ischemia/reperfusion (I/R) injury-induced oxidative stress in rats. MATERIALS AND METHODS Neuroprotective activity was carried out by global cerebral ischemia on Sprague-Dawley rats by bilateral carotid artery (BCA) occlusion for 30 min followed by 60 min reperfusion. The antioxidant enzymatic and non-enzymatic levels were estimated along with cerebral infarction area and histopathological studies. RESULTS The Matricaria recutita L. methanolic extract showed dose-dependent neuroprotective activity by significant decrease in lipid peroxidation (LPO) and increase in the superoxide dismutase (SOD), catalase (CAT), glutathione (GSH) and total thiol levels in extract treated groups as compared to ischemia/reperfusion group. Cerebral infarction area was significantly reduced in extract treated groups as compared to ischemia/reperfusion group. CONCLUSION The methanolic extract of Matricaria recutita L. showed potent neuroprotective activity against global cerebral ischemia/reperfusion injury-induced oxidative stress in rats.
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Affiliation(s)
- V M Chandrashekhar
- Department of Pharmacology, Hanagal Shri Kumareshawr College of Pharmacy, BVVS campus, Bagalkot-587101, Karnataka, India.
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Ramalingam P, Ganapaty S, Rao CB. In vitro antitubercular and antimicrobial activities of 1-substituted quinoxaline-2,3(1H,4H)-diones. Bioorg Med Chem Lett 2010; 20:406-8. [DOI: 10.1016/j.bmcl.2009.10.026] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2009] [Revised: 10/05/2009] [Accepted: 10/06/2009] [Indexed: 10/20/2022]
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Lakshmi P, Khan PAA, Reddy PN, Lakshminar K, Ganapaty S. Genetic Relationship Among Tephrosia Species as Revealed by RAPD Analysis. ACTA ACUST UNITED AC 2007. [DOI: 10.3923/ajbs.2008.1.10] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Ganapaty S, Chandrashekhar VM, Chitme HR, Narsu ML. Free radical scavenging activity of gossypin and nevadensin: An in-vitro evaluation. Indian J Pharmacol 2007. [DOI: 10.4103/0253-7613.39147] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Ganapaty S, Steve Thomas P, Karagianis G, Waterman PG, Brun R. Antiprotozoal and cytotoxic naphthalene derivatives from Diospyros assimilis. Phytochemistry 2006; 67:1950-6. [PMID: 16890968 DOI: 10.1016/j.phytochem.2006.05.039] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2006] [Revised: 05/22/2006] [Accepted: 05/26/2006] [Indexed: 05/11/2023]
Abstract
Chemical investigation of the roots of Diospyros assimilis had led to the isolation and characterization of six naphthalene derivatives, two 2-naphthaldehyes, namely 4-hydroxy-3,5-dimethoxy-2-naphthaldehyde 1, 4-hydroxy-5-methoxy-2-naphthaldehye 2, its related isomer 5-hydroxy-4-methoxy-2-naphthaldehyde 3 and three commonly occurring naphthoquinones, diospyrin 4, 8'-hydroxyisodiospyrin 5 and the simple monomer, plumbagin 6. Their chemical structures were established by detailed NMR investigations including 1H and 13C NMR, HSQC, HMBC and NOESY experiments. In addition, the naphthalene derivatives 1-5 were evaluated for their in vitro antiprotozoal activity against protozoan parasites belonging to the genera Trypanosoma, Leishmania and Plasmodium. Among the tested compounds, naphthaldehyde 1 showed moderate inhibition of the growth of the parasites, T. brucei, T. cruzi, L. donovani with IC50 values of 19.82, 12.28 and 38.78 microM and displayed cytotoxicity towards rat skeletal myoblasts (L-6 cells) with IC50 of 174.94 microM, while 2 and 3 were found to be comparatively less active to 1. The dimeric quinones 4 and 5 exhibited good activity against T. brucei and L. donovani with IC50 of 1.12 and 8.82 microM and 12.94 and 16.66 microM respectively.
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Affiliation(s)
- S Ganapaty
- Pharmacognosy and Phytochemistry Division, Department of Pharmaceutical Sciences, Andhra University, Visakhapatnam 530 003, Andhra Pradesh, India.
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Abstract
The aqueous extract of the Cocculus hirsutus aerial parts (100 and 200 mg/kg, p.o.) showed significant diuretic activity and laxative effect in rats. The acute toxicity, orally evaluated in mice, was found to be higher than 3000 mg/kg.
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Affiliation(s)
- S Ganapaty
- Department of Pharmaceutical Sciences, Andhra University, Visakhapatnam, A.P. 530003, India.
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Abstract
A new iridoid glucoside, 5-deoxypulchelloside I, along with the three known iridoid glucosides, phlomiol, lamiid, and lamiidoside, were isolated from the leaves of CITHAREXYLUM FRUTICOSUM. The structure of the new compound was established by spectroscopic methods.
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Affiliation(s)
- S Ganapaty
- Department of Pharmaceutical Sciences, Andhra University, Waltair-530003 (A.P.), India
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