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Jadav SJ, Patel JK. Consciousness of dairy farmers about leptospirosis disease as a zoonosis. IJDS 2021. [DOI: 10.33785/ijds.2021.v74i04.010] [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: 11/23/2022]
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Naga KC, Siddappa S, Kumar R, Tiwari RK, Subhash S, Verma G, Buckseth T, Bairwa A, Sharma S, Katare S, Srivastava RM, Bansode GM, Sarkar A, Patel JK. A new record of Asia II 5 genetic group of Bemisia tabaci (Gennadius) in the major potato growing areas of India and its relationship with tomato leaf curl New Delhi virus infecting potato. 3 Biotech 2021; 11:421. [PMID: 34603921 DOI: 10.1007/s13205-021-02966-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 04/16/2021] [Accepted: 08/19/2021] [Indexed: 01/09/2023] Open
Abstract
The whitefly, Bemisia tabaci (Gennadius), is responsible for significant yield losses in many crops, including potato, by sucking the phloem sap and transmitting a number of plant viruses. B. tabaci is a complex of cryptic species which is commonly designated as genetic groups. The B. tabaci genetic groups differ biologically with respect to host plant preference, insecticidal resistance, reproduction capacity, and ability to transmit begomoviruses. Therefore, understanding genetic variation among populations is important for establishing crop-specific distribution profile and management. We sequenced the mitochondrial cytochrome oxidase I (mtCOI) gene of B. tabaci collected from major potato growing areas of India. BLAST analysis of the 24 mtCOI sequences with reference Gene Bank sequences revealed four B. tabaci genetic groups prevailing in this region. mtCOI analysis exhibited the presence of Asia II 1, Asia II 5, Asia 1, and MEAM1 B. tabaci genetic groups. Our study highlighted that a new genetic group Asia II 5 has been detected in Indo-Gangetic Plains. Further virus-vector relationship study of ToLCNDV with Asia II 5 B. tabaci revealed that females are efficient vector of this virus as compared to males. This behavior of females might be due to their ability to acquire more virus titer than males. This study will help in better understanding of whitefly genetic group mediated virus diseases.
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Affiliation(s)
- Kailash C Naga
- ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh 171001 India
| | - Sundaresha Siddappa
- ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh 171001 India
| | - Ravinder Kumar
- ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh 171001 India
| | - Rahul K Tiwari
- ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh 171001 India
| | - S Subhash
- ICAR-Central Potato Research Institute, Regional Station, Modipuram, Uttar Pradesh 250110 India
| | - Gaurav Verma
- ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh 171001 India
| | - Tanuja Buckseth
- ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh 171001 India
| | - Aarti Bairwa
- ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh 171001 India
| | - Sanjeev Sharma
- ICAR-Central Potato Research Institute, Shimla, Himachal Pradesh 171001 India
| | - Subhash Katare
- Central Potato Research Station, Gwalior, Madhya Pradesh 474 020 India
| | - R M Srivastava
- GB Pant University of Agriculture & Technology, Pantnagar, Uttarakhand 263 145 India
| | - G M Bansode
- Regional Fruit Research Station, National Agricultural Research Project, Pune, Maharashtra 411 007 India
| | - Anirban Sarkar
- BC Krishi Vishwavidyalaya, Kalyani, West Bengal 741 235 India
| | - J K Patel
- Potato Research Station, Sardar Krushinagar Dantiwada Agricultural University, Deesa, Gujarat 385 535 India
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Patel JK, Shabir S, Sharif A, Briggs D, Chan W, Borrows R. Recipient HLA-C7 and Protection From Polyomavirus Nephropathy. Transplantation 2019; 103:e388. [PMID: 31651735 DOI: 10.1097/tp.0000000000002902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Jaya K Patel
- Department of Nephrology, Queen Elizabeth Hospital Birmingham, United Kingdom
- King Edward High School for Girls, Edgbaston, Birmingham, United Kingdom
| | - Shazia Shabir
- Department of Nephrology, Queen Elizabeth Hospital Birmingham, United Kingdom
| | - Adnan Sharif
- Department of Nephrology, Queen Elizabeth Hospital Birmingham, United Kingdom
| | - David Briggs
- National Blood Service, Edgbaston, Birmingham, United Kingdom
| | - Winnie Chan
- Department of Nephrology, Queen Elizabeth Hospital Birmingham, United Kingdom
| | - Richard Borrows
- Department of Nephrology, Queen Elizabeth Hospital Birmingham, United Kingdom
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Kaczmarek KA, Clifford RL, Patel JK, Shaw DE, Dowden J, Knox AJ. P236 The role of histone arginine methylation in gene expression of airway smooth muscle cells in asthma. Thorax 2016. [DOI: 10.1136/thoraxjnl-2016-209333.379] [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: 11/04/2022]
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Clifford RL, Patel JK, Shaw DE, Knox AJ, Kobor MS. P238 Investigating genome wide dna methylation in airway smooth muscle cells from asthmatic and non-asthmatic donors. Thorax 2016. [DOI: 10.1136/thoraxjnl-2016-209333.381] [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: 11/03/2022]
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Kransdorf EP, Czer LSC, Luthringer DJ, Patel JK, Montgomery SP, Velleca A, Mirocha J, Zakowski PC, Zabner R, Gaultier CR, Qvarnstrom Y, Benedict T, Steurer F, Bosserman E, Paddock CD, Rafiei M, Kobashigawa JA. Heart transplantation for Chagas cardiomyopathy in the United States. Am J Transplant 2013; 13:3262-8. [PMID: 24165397 PMCID: PMC10183729 DOI: 10.1111/ajt.12507] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [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: 06/24/2013] [Revised: 08/12/2013] [Accepted: 09/12/2013] [Indexed: 01/25/2023]
Abstract
Since an initial case in 2006, we noted multiple patients undergoing heart transplantation (HTx) for Chagas cardiomyopathy (CC) at our transplant program. The clinical characteristics, laboratory results and outcomes of patients with CC undergoing HTx in the United States have not been reported previously. In 2010, we implemented a systematic screening and management program for patients undergoing HTx for CC. Before HTx, all patients with idiopathic dilated cardiomyopathy who were born in a Chagas disease endemic country were screened for Trypanosoma cruzi (TC) infection with serology. After HTx, monitoring for TC reactivation was performed using clinical visits, echocardiography, endomyocardial biopsy and serial whole blood polymerase chain reaction (PCR) testing. Between June 2006 and January 2012, 11 patients underwent HTx for CC. One patient was empirically treated due to the presence of TC amastigotes in explanted cardiac tissue. Two patients experienced allograft dysfunction due to TC reactivation and three patients experienced subclinical reactivation (positive PCR results), which were treated. Chagas disease is a common cause of dilated cardiomyopathy in patients from endemic countries undergoing HTx at a transplant program in the United States. Reactivation is common after transplantation and can cause adverse outcomes.
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Deshmukh AB, Patel JK, Prajapati AR, Mishra B. Investigating the effect of CoCl2 administration on diabetic nephropathy and associated aortic dysfunction. Kidney Blood Press Res 2013; 35:694-7. [PMID: 23307163 DOI: 10.1159/000343888] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Accepted: 10/01/2012] [Indexed: 11/19/2022] Open
Abstract
AIM Endothelial dysfunction appears to be a consistent finding in diabetic nephropathy. The study aimed to investigate the effect of cobalt chloride in the amelioration of endothelial dysfunction in uninephrectomized diabetic rats. METHODS We examined the effect of CoCl(2) (10 mg/kg, i.p., OD = once a day) treatment on contractile responses to angiotensin II (10(-10) to 10(-6)M) in an aortic preparation of control rats and uninephrectomized diabetic control rats. Blood glucose, plasma urea, creatinine, uric acid, aortic endothelial nitric oxide synthase (eNOS), nitrate/nitrite (NOx), superoxide dismutase, catalase and reduced glutathione levels were checked in the different groups. RESULTS A significant attenuation of the augmented responses to angiotensin II was observed in CoCl(2)-treated animals along with a fall in plasma urea, creatinine and uric acid levels. A significant reduction in blood glucose and an increase in aortic eNOS and NOx levels along with antioxidants levels were observed. CONCLUSION Chronic hypoxia augments angiotensin II responses in the thoracic aorta of uninephrectomized diabetic control rats. CoCl(2) attenuates these enhanced vascular responses with a significant decrease in blood glucose signifying stabilization of the hypoxia-inducible factor in the alleviation of endothelial dysfunction in diabetic nephropathy.
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Affiliation(s)
- A B Deshmukh
- Department of Pharmacology, Shankersinh Vaghela Bapu Institute of Pharmacy, Unava, India. aaishwarya.22 @ gmail.com
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Upadhyay SU, Patel JK, Patel VA, Saluja AK. Effect of different lipids and surfactants on formulation of solid lipid nanoparticles incorporating tamoxifen citrate. J Pharm Bioallied Sci 2012; 4:S112-3. [PMID: 23066183 PMCID: PMC3467804 DOI: 10.4103/0975-7406.94161] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [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] [Indexed: 11/04/2022] Open
Abstract
Tamoxifen Citrate (TC) is an estrogen receptor antagonist and drug of choice for hormone sensitive breast cancer. Solid Lipid Nanoparticles loaded with TC were prepared by High Shear Homogenization followed by Ultrasonication. The aim of the present work is to study the effect of four different Solid Lipids and three Surfactants on Formulation and Stability of SLN. They were characterized for Particle size, Polydispersity Index and Zeta Potential by Zetasizer Nano. SLN prepared by Solid Lipid Compritol 888 (Glyceryldibehenate) and Tween 80 (1%) showed desired Particle Size of 206.9 nm, PDI of 0.046 and Zeta Potential of 9.32 mV.
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Affiliation(s)
- S U Upadhyay
- A R College of Pharmacy, V. V. Nagar, Gujarat, India
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Patel BP, Patel JK, Rajput GC, Thakor RS. Formulation and evaluation of mouth dissolving tablets of cinnarizine. Indian J Pharm Sci 2011; 72:522-5. [PMID: 21218071 PMCID: PMC3013568 DOI: 10.4103/0250-474x.73930] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2009] [Revised: 03/26/2010] [Accepted: 08/16/2010] [Indexed: 12/02/2022] Open
Abstract
The purpose of this research was to develop mouth dissolve tablets of cinnarizine by effervescent, superdisintegrant addition and sublimation methods. All the three formulations were evaluated for disintegration time, hardness and friability, among these superdisintegrant addition method showed lowest disintegration time; hence it was selected for further studies. Further nine batches (B1-B9) were prepared by using crospovidone, croscarmellose sodium and L-HPC in different concentrations such as 5, 7.5 and 10%. All the formulations were evaluated for weight variation, hardness, friability, drug content, in vitro disintegration time, wetting time, in vitro dissolution. Formulation with 10% L-HPC showed the less disintegration time (25.3 s) and less wetting time (29.1 s). In vitro dissolution studies showed total drug release at the end of 6 min.
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Affiliation(s)
- B P Patel
- Nootan Pharmacy College, S. P. Sahakar Vidyadham, Visnagar-384 315, India
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Shah MM, Patel JK, Fischbach NA. Outcomes of triple negative breast cancer in African-Americans vs. Caucasians: a community-based study. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-3043] [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] [Indexed: 11/16/2022]
Abstract
Abstract
Abstract #3043
Background: Breast cancers with a triple negative tumor (TNT) subtype are associated with inferior outcomes and more recently racial disparities in patients with TNT have been demonstrated with African American women experiencing worse outcomes compared to Caucasians. This study examines association of race (AA vs. Caucasians) and breast cancer outcomes in a large community hospital TNT population.
 Methods: Breast cancers of the TNT subtype were reviewed from a hospital-based tumor registry. Cases diagnosed from 1999 to 2006 were included in the study. Multivariate regression analyses were conducted including socio-demographic, and treatment factors. Endpoints were local/systemic recurrence and death.
 Results: Of 1827 newly diagnosed cases of breast cancer from 1999- 2006, 93 were of the TNT subtype. A higher number of AA (17.58%) had TNT compared to Caucasians (3.7%). In patients with TNT, AA presented at a younger age (mean age 51.78 years vs. 58.52 years, (<50 years) (p value=0.07), had more advanced disease at diagnosis (stage 3) (5.38% vs. 1.08%; p value 0.001) and had a poor insurance status (uninsured and Medicaid) (9.68% vs. 4.30%; p value 0.004). There was no difference in the histologic grade of the tumors. AA had a higher rate of local recurrence (4.30% vs. 2.15%; p value 0.029), systemic recurrence (19% vs. 10%; p value 0.02) [Figure 2] and death (17.20% vs. 13.98%; p value 0.005) [Figure 1] compared to Caucasians.
 
 
 
 Even after adjusting for insurance status and treatment modalities, AA had a higher mortality rate compared to Caucasians (p value 0.014).
 Conclusions: The high prevalence of TNTs among AA women and poorer survival in spite of adjusting for insurance and treatment modalities, suggests an underlying biologic variation with respect to race/ ethnicity.
Citation Information: Cancer Res 2009;69(2 Suppl):Abstract nr 3043.
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Affiliation(s)
- MM Shah
- 1 Internal Medicine, Yale Bridgeport Hospital, Bridgeport, CT
| | - JK Patel
- 1 Internal Medicine, Yale Bridgeport Hospital, Bridgeport, CT
| | - NA Fischbach
- 1 Internal Medicine, Yale Bridgeport Hospital, Bridgeport, CT
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Patel VM, Prajapati BG, Patel JK, Patel MM. Physicochemical Characterization and Evaluation of Buccal Adhesive Patches Containing Propranolol Hydrochloride. Curr Drug Deliv 2006; 3:325-31. [PMID: 16848734 DOI: 10.2174/156720106777731082] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Buccal adhesive patches containing 20 mg of propranolol hydrochloride were prepared using solvent casting method. Chitosan was used as a natural bioadhesive polymer. Patches were prepared at different ratios of PVP K-30 and evaluated for various physicochemical characteristics such as weight variation, drug content uniformity, folding endurance, surface pH, ex-vivo mucoadhesive strength, ex-vivo residence time, in vitro drug release and in vitro buccal permeation study. Patches exhibited sustained release over a period of 7 hours. The mechanism of drug release was found to be Non-Fickian diffusion. Addition of PVP K-30 generally enhanced the releasing rate. The ex-vivo mucoadhesive strength was performed using sheep buccal mucosa on modified physical balance. Optimized patches (batch F4) showed satisfactory bioadhesive strength (9.6 degrees 2.0 gram) and ex vivo residence time (272 degrees 0.25 minutes). Swelling index was proportional to PVP K-30. The surface pH of all batches was within satisfactory limit (7.0+/-1.5) and hence patches would not cause irritation in the buccal cavity. Good correlation was observed between in vitro drug release and in vitro drug permeation with correlation coefficient of 0.9364. Stability of optimized patches was performed in natural human saliva showed that both drug and dosage forms were stable in human saliva.
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Affiliation(s)
- V M Patel
- S.K. Patel College of Pharmaceutical Education & Research, Ganpat Vidyanagar, Ganpat University, Kherva. PIN, 382711 City, Mehsana, State, Gujarat, Country, India.
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Morar KN, Syed MI, Patel JK, Shaikh A. Embolization of Middle Hemorrhoidal Artery in the Management of Life-threatening Rectal Bleeding. Cardiovasc Intervent Radiol 2005; 29:128-9. [PMID: 16418900 DOI: 10.1007/s00270-003-4092-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2003] [Accepted: 06/19/2003] [Indexed: 10/25/2022]
Affiliation(s)
- K N Morar
- Department of Interventional Radiology, Mercy Medical Center, Springfield, OH 45504, USA
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Abstract
The advent of cyclosporine 20 years ago was a major advance in the field of solid organ transplantation. Its use enabled directed immunosuppression with a consequent decrease in the incidence of graft failure, acute rejection, and systemic infection. The early oil-based preparation, however, was difficult to administer and had limited bioavailability and unpredictable pharmacokinetics. The drug also has a fairly narrow therapeutic window with major long-term side effects, which include nephrotoxicity, malignancy, hyperlipidemia, and hypertension. The introduction of a microemulsion preparation (Neoral) with improved bioavailability has been associated with lower rates of rejection and comparable tolerability, therefore allowing the use of lower doses. Traditionally cyclosporine toxicity has been minimized by monitoring trough levels. Monitoring of levels 2 hours after dosing may provide a more accurate determination of cyclosporine exposure. The next phase in cardiac transplantation immunosuppression will most likely see a significantly diminished role for cyclosporine with the introduction of newer, more potent immunosuppressive agents with more favorable side-effect profiles. These agents, which include mycophenolate mofetil, sirolimus, and everolimus, also hold the promise of having a major impact on the development of transplant vasculopathy, which up to now has been an important determinant of limiting long-term allograft survival.
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Affiliation(s)
- J K Patel
- Division of Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, Calif 90045, USA
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Abstract
Alcoholic extracts of Goat's Rue (Galega officinalis L.; Papilionaceae) were tested on Gram +ve and Gram -ve bacteria as the plant was claimed to hasten skin healing after surgery. Ethanolic (60%) extract exhibited significant inhibition on growth of both Gram +ve and Gram -ve bacteria.
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Affiliation(s)
- K Pundarikakshudu
- S.K. Patel College of Pharmaceutical Education and Research, Nagalpur Highway, Mehsana 384002, Gujarat, India
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Abstract
Over a century ago it was recognized that the vessel wall is a predominant site for ectopic calcification which is a hallmark of clinically significant atherosclerotic lesions. Old observational studies, which characterized vascular calcification as osteogenesis, and recent identification of common molecular mechanisms in bone and vascular calcification have led to the new recognition that atherosclerotic calcification is an actively regulated process similar to osteogenesis and distinct from a metastatic passive mineralization. Since the atherosclerotic lesion is composed of a multitude of cells and inflammatory mediators, elucidation of the role of these components in induction and acceleration of calcification is of fundamental importance in better understanding its pathogenesis and identifying possible interventional targets. This article will focus on four important mediators of vascular calcification: 1) calcifying vascular cells, 2) oxidized lipids, 3) cytokines, and 4) leptin.
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Affiliation(s)
- F Parhami
- Division of Cardiology, UCLA School of Medicine, Center for the Health Sciences, 47-123, 10833 Le Conte Avenue, Los Angeles, CA 90095, USA.
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Dursun SM, Patel JK, Drybala T, Shinkwin R, Drybala G, Reveley MA. Effects of antidepressant treatments on first-ECT seizure duration in depression. Prog Neuropsychopharmacol Biol Psychiatry 2001; 25:437-43. [PMID: 11294487 DOI: 10.1016/s0278-5846(00)00173-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
1. Current guidelines on the practice of Electroconvulsive Therapy (ECT) suggest that antidepressant medications should be discontinued prior to the course of therapy. However, the practice of withholding potentially helpful medication is debatable because the effects of these medications on seizure duration remain unclear. In particular, there is a lack of empirical knowledge about the effects of Selective Serotonin Reuptake Inhibitors (SSRIs) on ECT treatment. 2. Therefore, we investigated and compared the effects of SSRIs and tricyclic antidepressants (TCAs) on seizure duration after the first bilateral ECT treatment. 3. The diagnosis of major depressive disorder was made using the DSM-IV criteria. Both patient groups were age- and sex-matched. ECT was indicated for acute suicidal acts or refractoriness to medications. All patients had received antidepressant treatment for at least eight weeks and were receiving at least the recommended dose of medication. All patients were ECT treatment-naïve and we measured the seizure duration after the first bilateral ECT treatment. 4. There was no significant difference between electrical charge applied to either group. Between the TCA and SSRI group the seizure duration was not significantly different: 33.2 seconds and 31.4 seconds respectively.
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Affiliation(s)
- S M Dursun
- Department of Psychiatry, University of Leicester, UK
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Patel JK, Caplan B, Green A, Tamminga C. First-episode psychosis: critical management issues during the first two years. Harv Rev Psychiatry 2001; 9:33-41. [PMID: 11159931 DOI: 10.1080/10673220127872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- J K Patel
- Commonwealth Research Center, Massachusetts Mental Health Center, Boston, MA, USA
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Abstract
Obesity is common in schizophrenia, and people with schizophrenia appear to be at increased risk for certain obesity-related conditions, such as type 2 diabetes and cardiovascular disease. Antipsychotic drugs, used chronically to control symptoms of schizophrenia, are associated with often-substantial weight gain, a side effect that is a special concern with the latest generation of highly effective "novel" agents. That the most effective (e.g., novel) antipsychotic medications lead to substantial weight gain presents the field with a critical public health problem. Although preliminary data have been reported regarding the beneficial use of behavior therapy programs for short-term weight control in patients with schizophrenia, the available data are quite limited, and there are no data regarding the long-term beneficial effects of these programs in this population. The obesity field recently has developed programs emphasizing "lifestyle changes" (e.g., diet, exercise, and problem-solving skills) to successfully manage weight in patients without schizophrenia. Such programs can be adapted for patients with schizophrenia through the use of highly structured and operationalized modules emphasizing medication compliance, social skills development, and participation in outpatient programs. Moreover, these programs can potentially be combined with the use of adjunctive pharmacotherapy to maximize and maintain weight loss. The field must solve the paradox that some of our most effective medications for schizophrenia produce substantial weight gain and its associated troubling health risks.
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Affiliation(s)
- A I Green
- Commonwealth Research Center, Harvard Medical School Department of Psychiatry, Boston, Massachusetts 02115, USA
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Green AI, Tohen M, Patel JK, Banov M, DuRand C, Berman I, Chang H, Zarate C, Posener J, Lee H, Dawson R, Richards C, Cole JO, Schatzberg AF. Clozapine in the treatment of refractory psychotic mania. Am J Psychiatry 2000; 157:982-6. [PMID: 10831480 DOI: 10.1176/appi.ajp.157.6.982] [Citation(s) in RCA: 94] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The efficacy of clozapine was examined in a group of patients with treatment-refractory bipolar disorder, manic type with psychotic features. METHOD Twenty-two subjects with treatment-refractory bipolar disorder with active manic and psychotic symptoms participated in a 12-week open-label trial of clozapine. After a 2-10-day drug washout period, patients began treatment with clozapine at 25 mg/day; the dose was increased 25 mg/day (as tolerated) to a maximum level of 550 mg/day. Patients were evaluated longitudinally over the course of the study with the Brief Psychiatric Rating Scale (BPRS), the Young Mania Rating Scale, and the Clinical Global Impressions (CGI) scale. RESULTS Fourteen of the 22 subjects in the study continued taking clozapine for at least 10 of the 12 weeks. Among the entire group, mean improvements of 56. 7%, 56.6%, and 39.1% were seen on the BPRS, Young Mania Rating Scale, and CGI, respectively. Seventeen of the 22 subjects (77.3%) experienced at least a 20% improvement in scores on all three scales. CONCLUSIONS The findings from this open-label study, which are consistent with previous retrospective studies, case reports, and one other open-label prospective study, suggest that clozapine is an effective agent for patients with treatment-refractory psychotic mania.
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Affiliation(s)
- A I Green
- Commonwealth Research Center, Massachusetts Mental Health Center, Boston, MA 02115, USA.
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Dursun SM, Patel JK, Burke JG, Reveley MA. Effects of typical antipsychotic drugs and risperidone on the quality of sleep in patients with schizophrenia: a pilot study. J Psychiatry Neurosci 1999; 24:333-7. [PMID: 10516800 PMCID: PMC1189035] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/14/2023] Open
Abstract
OBJECTIVE To investigate the effects of a newer antipsychotic drug, risperidone (a potent serotonin 5-HT2A/2C and dopamine D2-receptor blocker), on the quantity and quality of sleep in patients with schizophrenia. DESIGN Prospective pilot study. SETTING Outpatient treatment at a mental health hospital. PATIENTS Two groups of age- and sex-matched patients with schizophrenia receiving either risperidone (n = 8) or a typical antipsychotic drug (n = 8), and a group of age- and sex-matched controls (n = 8). OUTCOME MEASURES Sleep quality, measured by a visual analogue scale, and sleep continuity, measured using a movement index calculated from actigraph data. RESULTS Patients with schizophrenia had more disturbed sleep than controls. Compared with patients treated with typical antipsychotic drugs, patients treated with risperidone reported significantly better sleep quantity and quality as well as general functioning. CONCLUSION Improvement by risperidone may be related to 5-HT2A/2C receptor blockade; however, further controlled studies are required to confirm these results.
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Affiliation(s)
- S M Dursun
- Department of Psychiatry, Faculty of Medicine, University of Leicester, UK.
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Affiliation(s)
- J K Patel
- Commonwealth Research Center, Massachusetts Mental Health Center, Boston, MA 02115, USA
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Duckworth K, Nair V, Patel JK, Goldfinger SM. Lost time, found hope and sorrow: the search for self, connection, and purpose during "awakenings" on the new antipsychotics. Harv Rev Psychiatry 1997; 5:227-33. [PMID: 9427015 DOI: 10.3109/10673229709000305] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The novel antipsychotic medications clozapine and olanzapine provide well-documented clinical improvement for some patients with psychosis. We interviewed 15 patients with chronic psychosis who demonstrated significant improvement on these new medications and offer a conceptual framework to organize their narratives. In our conceptual model, our patients' descriptions are divided into three broad areas: sense of self, sense of connection, and sense of purpose. We also highlight the opportunities for psychotherapy with this population.
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Affiliation(s)
- K Duckworth
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
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Kando JC, Shepski JC, Satterlee W, Patel JK, Reams SG, Green AI. Olanzapine: a new antipsychotic agent with efficacy in the management of schizophrenia. Ann Pharmacother 1997; 31:1325-34. [PMID: 9391688 DOI: 10.1177/106002809703101110] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVE To review the pharmacology, pharmacokinetics, efficacy data, and adverse effects of olanzapine as a treatment for schizophrenia and to determine the advantages and disadvantages of this atypical antipsychotic agent compared with currently marketed agents. DATA SOURCES A MEDLINE computer literature search was conducted to retrieve all English-language studies and review articles involving olanzapine published as of October 1, 1996. The manufacturer of the drug, Eli Lilly and Company, provided the clinical investigator's brochure and abstracts of unpublished Phase III clinical trials. STUDY SELECTION Animal studies evaluating the pharmacology of olanzapine were evaluated, as were all open-label and double-blind studies involving the evaluation of olanzapine for the treatment of patients with schizophrenia. DATA EXTRACTION All available clinical studies were reviewed and the interpretation of data for each study was influenced by the size of the study sample, the nature of the inclusion and exclusion criteria, and the data analysis techniques used. DATA SYNTHESIS Olanzapine is a thienobenzodiazepine analog with an in vitro receptor affinity profile similar to that of clozapine. Olanzapine exhibits linear kinetics over the dosage range studied and is extensively metabolized in humans. Clinical evaluations to date have shown olanzapine to be at least as efficacious as typical antipsychotic agents in the treatment of the acute phase of schizophrenia. The drug was well tolerated, with significantly fewer extrapyramidal adverse effects than haloperidol. Current data suggest that olanzapine may be more effective than haloperidol for the treatment of negative symptoms; moreover, preliminary data suggest that fewer relapses occur over the course of treatment in patients treated with olanzapine compared with those taking haloperidol. CONCLUSIONS The exact place of olanzapine in the therapy of psychotic patients remains unclear, as more data are needed to evaluate the long-term efficacy of this agent, its impact on negative symptoms, and its potential use in patients resistant to the standard agents. Despite limitations in the current database, olanzapine is a promising treatment option for patients with schizophrenia.
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Affiliation(s)
- J C Kando
- Clinical Pharmacy Services, Massachusetts Project, MedManagement, Tewksbury, USA
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Affiliation(s)
- J K Patel
- Commonwealth Research and Evaluation Unit, Massachusetts Mental Health Center, Boston 02115
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Patel JK, Patel M, Hitti I, Crofford M, Noh JM, Narasimhan P. Trauma-related presentation of non-Hodgkin's lymphoma. N Y State J Med 1992; 92:322. [PMID: 1518592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Abstract
Between 1980 and 1988, 122 women with operable invasive breast cancers underwent wide excision and axillary dissection without subsequent irradiation. During the follow-up period of 1 to 8 years (median, 4 years), recurrences were observed in 23 patients (19%), 22 occurring in the breast and one in the axilla. This is a significant rate of recurrence and supports the need for breast irradiation after conservative surgery. The incidence of recurrence in the breast did not appear to be related to the presence or absence of axillary nodal metastasis. No recurrences were noted in 20 patients whose primary tumors were smaller than 1 cm. The incidence of recurrence was directly correlated to the increasing size of the tumor, but it also appeared to decrease with advancing age. In 31 patients over 70 years of age, only one (3%) recurrence was observed. If these early findings are confirmed, it is likely that patients with tumors smaller than 1 cm or patients over 70 years of age may be spared breast irradiation after wide excision.
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MESH Headings
- Adult
- Aged
- Breast Neoplasms/surgery
- Carcinoma/epidemiology
- Carcinoma/secondary
- Carcinoma/surgery
- Carcinoma in Situ/epidemiology
- Carcinoma in Situ/secondary
- Carcinoma in Situ/surgery
- Carcinoma, Intraductal, Noninfiltrating/epidemiology
- Carcinoma, Intraductal, Noninfiltrating/secondary
- Carcinoma, Intraductal, Noninfiltrating/surgery
- Diagnosis, Differential
- Female
- Follow-Up Studies
- Humans
- Incidence
- Lymphatic Metastasis
- Mastectomy, Segmental
- Middle Aged
- Neoplasm Recurrence, Local/epidemiology
- Neoplasm Recurrence, Local/surgery
- Prospective Studies
- Risk Factors
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Affiliation(s)
- T Nemoto
- Department of Breast Surgery, Roswell Park Memorial Institute, Buffalo, New York
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Murthy DS, Murthy SK, Patel JK, Tyagi AA. Nucleolar organizer region heteromorphism associated with trisomy-21: a risk factor for non-disjunction? Indian J Exp Biol 1989; 27:864-7. [PMID: 2534530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
An unusual nucleolar organizer region (double NOR) on chromosome 13 was observed in a Down syndrome child [47, XY, +21, dNOR(13)]. The variant chromosome was inherited from the mother [46, XX, dNOR(13)]. The extra chromosome 21 in the proband was maternal origin. The frequency of NOR chromosome association showed relatively high frequency in the mother and proband as compared to the controls. The result suggest that chromosome variants involving extra copies of NOR may indeed be involved in the meiotic nondisjunction of chromosome-21.
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Nemoto T, Patel JK, Rosner D, Dao TL, Halvorson H. Cyclic and sequential therapy with tamoxifen and medroxyprogesterone acetate in metastatic breast cancer. J Surg Oncol 1989; 41:226-9. [PMID: 2526907 DOI: 10.1002/jso.2930410407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A clinical trial of sequential tamoxifen and medroxyprogesterone acetate (MPA) was carried out in 36 women with metastatic breast cancer in order to evaluate the therapeutic efficacy of this regimen and to determine if tamoxifen would increase progesterone receptor (PR) levels and thereby increase response to MPA. Fourteen patients (39%) responded to this treatment, with the duration of remission ranging from 2 to 24 + months (the mean and median were 11 months). In 22 patients, PR levels were measured both before and after 7 days of tamoxifen administration. In PR-positive patients, PR changes induced by tamoxifen did not appear to increase the response rate. In PR-negative patients, PR became positive in 3 patients following tamoxifen treatment, with 2 of 3 responding to treatment, whereas in 11 others whose PR levels remained negative, only one response was observed. Our results suggest that potentiation by tamoxifen was not observed, since in our previous study, MPA alone was equally effective. Thus, tamoxifen and MPA should be given independently for palliation of metastatic breast cancer, and MPA should be administered following therapy with tamoxifen.
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Affiliation(s)
- T Nemoto
- Department of Breast Surgery, Roswell Park Memorial Institute, Buffalo, NY
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Murthy SK, Patel JK, Krishnamurthy DS. Correlation of fragile sites and bleomycin induced chromosome break points. Indian J Exp Biol 1989; 27:442-4. [PMID: 2480936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Bleomycin (Blm) induced break points in human chromosome preparations were compared with the known fragile sites. A total of 136 breaks were observed from 100 well spread G-banded plates (1.3 bps/cell). These correspond to a total of 57 break prone sites. Of these 57 sites, 24 correspond to the known fragile sites, 5 to sites of protooncogenes and neoplasia, 26 sites correspond to more than one known site of fragility, protooncogene, neoplasia or reciprocal translocation sites, and 2 unknown sites. The findings suggest that fragile sites, either commonly expressed or induced, might be a predisposing factor for chromosome aberrations in human. The expression of fragile sites induced by Blm and their correlation with the known cancer chromosome break points, oncogenes and reciprocal translocation, suggest that the fragile sites are prone to mutagenic action.
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Abstract
Aminoglutethimide (AG) was administered as palliative therapy in 112 patients with metastatic breast cancer. In 36 patients, the dose level was 1000 mg/day; 76 patients received a dose level of 500 mg/day. Patients with brain or liver metastasis were excluded, as were patients with tumors determined to be negative for estrogen receptors. Objective regression was observed in 35 (31%) patients, with the duration of response ranging from 4 to 36 + months (mean, 12 months; median, 10 months). Response was observed in 11 of 31 (35%) patients with soft tissue metastasis; 16/59 (27%) patients with osseous metastasis; and 8 of 22 (36%) having visceral metastasis. In 93 patients with positive estrogen receptor (ER), 33 responded (35%), whereas in 19 patients with unknown ER status, two responded (11%). Response to previous treatment with tamoxifen (TAM) had occurred in 31 patients; of these, response to AG was noted in 11 (35%). Of 24 patients failing to respond to prior treatment with tamoxifen, four (17%) responded to subsequent therapy with AG. Thirteen patients had previously received combination chemotherapy, and response to AG was noted in two (15%). The side effects observed in this study included skin rash in ten patients, fever in eight, somnolence in three, weakness and dizziness in one, headache in one, insomnia in one, dyspnea in one, and ataxia in one. Treatment had to be discontinued in eight patients, due to the severity of the side effects. As expected, patients receiving AG at the lower dose level of 500 mg/day experienced fewer and less severe side effects than those treated with the higher dose. The response rate in the 1000 mg/day group was 10/36 (28%) and in the 500 mg/day group, it was 25/76 (33%). The lower dosage was better tolerated without apparent compromise in therapeutic efficacy.
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Affiliation(s)
- T Nemoto
- Department of Breast Surgery, Roswell Park Memorial Institute, Buffalo, New York
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Abstract
A retrospective review of 483 women who had metastatic breast cancer and were treated between 1942 and 1975 was carried out to examine the effects of improving and aggressive palliative modalities on patient survival. There was a steady increase in the proportion of patients treated by chemotherapy and/or hormonal ablative therapy. Additive hormonal therapy, irradiation, and surgery for palliation decreased in frequency during the same period. Survival time from the first recurrence did not appear to increase in these patients over the period of this study. In spite of increasingly sophisticated palliative therapies, the survival time of patients with metastasis did not appear to be significantly prolonged.
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Abstract
From June 1958 to June 1982, 22 men with metastatic breast cancer were treated with endocrine therapy. All 22 patients were initially treated by bilateral orchiectomy, and objective response was seen in 11 (50%) patients for 15 months. Bilateral adrenalectomy was performed subsequently in 10 patients, and 8 (80%) patients had a mean duration of objective response of 15 months. Five of seven orchiectomy responders and 3 of 3 orchiectomy nonresponders subsequently responded to bilateral adrenalectomy. Tamoxifen was tried in three patients after relapse following adrenalectomy; all three patients responded with a mean duration of 9 months. One patient was successfully treated with aminoglutethimide for 7 months following orchiectomy failure. In this patient bilateral adrenalectomy was performed on disease relapse and again resulted in objective remission. In this review, a sequential endocrine therapy program provided palliation in men. Further study is required to determine the timing of the various endocrine modalities.
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Abstract
From 1951 to 1981, 22 patients with metastatic medullary carcinoma of the breast were treated with hormonal therapies at Roswell Park Memorial Institute. Bilateral oophorectomy was performed in 6 premenopausal patients, and none had objective response, although one patient did have stable disease for 7 months. Three of these patients subsequently underwent bilateral adrenalectomy and none responded. Thirteen of 16 postmenopausal patients underwent bilateral adrenalectomy and only one had an objective response of 4 months. Eight of 22 patients received additive hormones, and one patient was treated with Tamoxifen. There was no objective response to these therapies. From this study, it appears that medullary carcinoma of the breast is less often responsive to endocrine therapy, and this finding correlates well with the recent data showing lower frequency of estrogen receptor-positive tumors in these patients.
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Abstract
A case of leiomyosarcoma of the inferior vena cava of a 46-year-old man is presented, and review of 51 cases of this type of malignant tumor is made. The biological behavior of this tumor and various treatment modalities are discussed.
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Cohen ML, Patel JK, Baxter DL. External monitoring and plasma disappearance for the determination of renal function: comparison of effective renal plasma flow and glomerular filtration rate. Pediatrics 1971; 48:377-92. [PMID: 5094339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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Narang SK, Patel JK. Abnormal regeneration of oculomotor nerve (case report). Indian J Ophthalmol 1971; 19:40-1. [PMID: 15744965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023] Open
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Patel JK, Narang SK. Eye changes in methyl alcohol poisoning. J All India Ophthalmol Soc 1970; 18:125-7. [PMID: 5509023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Patel JK. Artificial insemination in goats. Indian Vet J 1967; 44:509-11. [PMID: 6080016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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