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Paul M, Addya S, Sengupta M, Basu K, Roychowdhury A, Bandopadhyay M. Spectrum of renal vascular lesions among patients with lupus nephritis: An experience from a tertiary care center. INDIAN J PATHOL MICR 2023; 66:751-757. [PMID: 38084527 DOI: 10.4103/ijpm.ijpm_327_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background Lupus nephritis (LN) is the assemblage of glomerular, tubulointerstitial and vascular changes. Despite the fact that glomerular changes are overemphasized in pathological classification and scoring system, but the existence of vascular damage negatively impact the clinical course. Aims and Objective This study was conducted to determine the clinicopathological spectrum of renal vascular lesions in lupus nephritis. Materials and Methods Renal microvascular lesions in biopsy proven lupus nephritis were classified into 5 major categories-thrombotic microangiopathy, true vasculitis; lupus vasculopathy, uncomplicated vascular immune deposits, and arterial. Clinical details, laboratory parameters and histopathological variables were compared among all groups. Summary of chronic changes was also assessed. Results Biopsies from 56 patients revealed thrombotic microangiopathy (2), lupus vasculopathy (3), uncomplicated vascular immune deposit (6), PAN type vasculitis (1) and arterial sclerosis (13). No renal vascular lesions were found in 35.18% of patients. At the time of biopsy, arterial sclerosis or lupus vasculopathy patients were older Nephritis subtype. Activity indices were higher in lupus vasculopathy group whereas patients with arteriosclerosis showed highest chronicity index. Conclusions Renal vascular lesions are common in systemic lupus erythematosus patients with nephritis and may be associated with aggressive clinical course.
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Affiliation(s)
- Madhumita Paul
- Department of Pathology, IPGME&R and SSKM Hospital, Kolkata, West Bengal, India
| | - Soma Addya
- Department of Pathology, IPGME&R and SSKM Hospital, Kolkata, West Bengal, India
| | - Moumita Sengupta
- Department of Pathology, IPGME&R and SSKM Hospital, Kolkata, West Bengal, India
| | - Keya Basu
- Department of Pathology, IPGME&R and SSKM Hospital, Kolkata, West Bengal, India
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Sengupta M, Basu K, Roychowdhury A. Nodular glomerulosclerosis with crescents- a double edged sword. INDIAN J PATHOL MICR 2023; 66:661-663. [PMID: 37530366 DOI: 10.4103/ijpm.ijpm_727_21] [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: 08/03/2023] Open
Affiliation(s)
- Moumita Sengupta
- Department of Pathology, IPGME&R and SSKM Hospital, Kolkata, West Bengal, India
| | - Keya Basu
- Department of Pathology, IPGME&R and SSKM Hospital, Kolkata, West Bengal, India
| | - Arpita Roychowdhury
- Department of Nephrology, IPGME&R and SSKM Hospital, Kolkata, West Bengal, India
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Kumar A, Roychowdhury A, Sengupta M, Basu K, Abraham A, Chatterjee U, Mukherjee S. Heavy chain deposition disease in a case of clear cell renal cell carcinoma- A jack in the box. INDIAN J PATHOL MICR 2023; 66:587-590. [PMID: 37530345 DOI: 10.4103/ijpm.ijpm_397_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023] Open
Abstract
Renal cell carcinoma (RCC) is the most common subtype of adult renal tumors, and its detection rate in the early stages has been increased in the dawn of advanced imaging modalities. Nephrectomy is the mainstay of treatment; determination of tumor category and staging is the primary concern of oncopathologists. Non-neoplastic renal parenchyma is overlooked majority of times and thus misses the opportunity to detect concomitant medical renal diseases which also predict the renal outcome in the postoperative era. Although any kind of glomerular or extraglomerular pathology may be encountered, vascular changes in the form of arterionephrosclerosis are the commonest one. Here, we take the opportunity to report an unusual association of heavy chain deposition disease (HCDD) with clear cell subtypes of renal cell carcinoma in a 48-year-old male of Indian ethnicity.
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Affiliation(s)
- Abhishek Kumar
- Department of Nephrology, IPGME and R and SSKM Hospital, Kolkata, West Bengal, India
| | - Arpita Roychowdhury
- Department of Nephrology, IPGME and R and SSKM Hospital, Kolkata, West Bengal, India
| | - Moumita Sengupta
- Department of Pathology, IPGME and R and SSKM Hospital, Kolkata, West Bengal, India
| | - Keya Basu
- Department of Pathology, IPGME and R and SSKM Hospital, Kolkata, West Bengal, India
| | | | - Uttara Chatterjee
- Department of Pathology, IPGME and R and SSKM Hospital, Kolkata, West Bengal, India
| | - Sriranjan Mukherjee
- Department of Pathology, IPGME and R and SSKM Hospital, Kolkata, West Bengal, India
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Hartescu I, Gardiner P, Girardi A, Breen K, Roychowdhury A, Wallang P, Morgan K. Sleep disturbance and aggression incidents in secure mental health settings. Sleep Med 2022. [DOI: 10.1016/j.sleep.2022.05.375] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Basu K, Sengupta M, Mukherjee S, Karmakar S, Roychowdhury A, Bandopadhyay M. Role of light and immunofluorescence microscopy to differentiate primary and secondary membranous nephropathy. INDIAN J PATHOL MICR 2022; 65:821-827. [PMID: 36308187 DOI: 10.4103/ijpm.ijpm_22_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023] Open
Abstract
CONTEXT Membranous nephropathy (MN) causes nephrotic syndrome, mostly primary but may be associated with SLE, infections, cancer, or drug. AIMS To estimate clinical, serological, light microscopic, and direct immunofluorescence (DIF) findings to differentiate primary and secondary MN. SETTINGS AND DESIGN Prospective, cross-sectional, single-center study in a tertiary care hospital. METHODS AND MATERIAL Total 51 cases from September 2019 to February 2020. LABORATORY DATA Blood glucose, urine analysis, urea, creatinine, albumin, cholesterol, HBsAg, Anti HCV, ASO, ANA, MPO ANCA, PR3 ANCA, dsDNA, PLA2R, C3, and C4. Clinical parameters: age, sex, BP, skin lesions, arthralgia, edema, obesity. Renal biopsies examined with H and E, PAS, silver methanamine, MT stains. DIF done with IgG, IgM, IgA, C3c, C1q, kappa, and lambda. STATISTICAL ANALYSIS USED Statistical software (Graph Pad PRISM 6) and Chi-square test). RESULTS Among 51 cases, 25 are primary and 26 are secondary MN with 22 being lupus nephritis, with 2 being post-infectious and the remaining 2 being proliferative glomerulonephritis with monoclonal immunoglobulin deposition (PGNMIDD) with kappa chain restriction. Mean age was 37 ± 12.18 and 30.69 ± 13.92 years for primary and secondary MN, respectively. Significant male preponderance in primary MN. Serum C4 significantly low in secondary MN (15.34 ± 9.59). Microscopic hematuria present in secondary MN. Mesangial and endocapillary hypercellularity are significant in secondary MN. IgG and kappa are significantly intense in primary whereas IgA, C3c, and C1q are significantly intense in secondary MN. CONCLUSIONS Reliable differentiation between primary and secondary MN has important therapeutic implications.
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Affiliation(s)
- Keya Basu
- Department of Pathology, Institute of Postgraduate Medical Education and Research, Health University, Kolkata, West Bengal, India
| | - Moumita Sengupta
- Department of Pathology, Institute of Postgraduate Medical Education and Research, Health University, Kolkata, West Bengal, India
| | - Sriranjan Mukherjee
- Department of Pathology, Institute of Postgraduate Medical Education and Research, Health University, Kolkata, West Bengal, India
| | - Subhrajyoti Karmakar
- Department of Pathology, Institute of Postgraduate Medical Education and Research, Health University, Kolkata, West Bengal, India
| | - Arpita Roychowdhury
- Department of Pathology, Institute of Postgraduate Medical Education and Research, Health University, Kolkata, West Bengal, India
| | - Manimoy Bandopadhyay
- Department of Nephrology, Institute of Postgraduate Medical Education and Research, Health University, Kolkata, West Bengal, India
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Roychowdhury A, Dalui T, Ghose P, Mahatha S, Wind N, Rossnagel K, Majumdar S, Giri S. Coexisting ferromagnetic component and negative magnetoresistance at low temperature in single crystals of the VdW material GaGeTe. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Khandelwal GK, Sengupta M, Basu K, Roychowdhury A. Lupus vasculopathy- An underappreciated pathology. INDIAN J PATHOL MICR 2022; 65:487-490. [PMID: 35435405 DOI: 10.4103/ijpm.ijpm_1076_20] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023] Open
Affiliation(s)
| | - Moumita Sengupta
- Department of Pathology, IPGME and R and SSKM Hospital, Kolkata, West Bengal, India
| | - Keya Basu
- Department of Pathology, IPGME and R and SSKM Hospital, Kolkata, West Bengal, India
| | - Arpita Roychowdhury
- Department of Nephrology, IPGME and R and SSKM Hospital, Kolkata, West Bengal, India
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Pal M, Sengupta M, Basu K, Roychowdhury A. Membranous nephropathy associated with Tuberculosis- a diagnostic enigma. ASIAN PAC J TROP MED 2022. [DOI: 10.4103/1995-7645.340571] [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] Open
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Basu K, Karmakar S, Sengupta M, Roychowdhury A, Ghosh A, Bandopadhyay M. Pediatric lupus nephritis - An evil cousin of its adult counterpart: A single-center based experience from a tertiary care hospital of Eastern India. INDIAN J PATHOL MICR 2021; 63:397-404. [PMID: 32769328 DOI: 10.4103/ijpm.ijpm_995_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Context Systemic lupus erythematosus is an autoimmune multisystem disease with a high predilection for renal involvement. Lupus nephritis develops in 20% to 75% within the first two years. Presentation varies from subnephrotic proteinuria to end-stage renal disease. Aims To study clinical features, biochemical, and serological parameters and correlate with histological activity and chronicity score [modified National Institute of Health (NIH) score]. Settings and Design Retrospective, cross-sectional, single-center based study in a tertiary care hospital of Eastern India. Subjects and Methods We incuded 36 children with lupus nephritis diagnosed from February 2018 to March 2019. Laboratory data included were complete blood count (CBC), blood glucose, urine analysis, serum urea, creatinine, blood urea nitrogen (BUN), albumin, cholesterol, HBsAg, antihepatitis C virus (HCV) antibody, antistreptolysin O (ASO) titer, antinuclear antibody (ANA), myeloperoxidase antineutrophil cytoplasmic antibody (MPO ANCA), proteinase 3 antineutrophil cytoplasmic antibody (PR3 ANCA), double-stranded DNA (dsDNA), C3, and C4. Clinical parameters were age, sex, blood pressure (BP), skin lesions, arthralgia, edema, obesity. Renal biopsies examined with light microscopy, hematoxylin and eosin (H and E), periodic acid-Schiff (PAS), silver methanamine, Masson's trichrome (MT) stains. Immunofluorescence microscopy done with IgG, IgM, IgA, C3c, C1q, kappa, lambda antibodies. Statistical Analysis Used Kruskal-Wallis and χ2 tests. Results Mean age was 15.12 ± 3.49 and 12.5 ± 1.73 years for lupus nephritis (LN) with activity and LN without activity, respectively. Mean dsDNA was higher and mean C3 was lower (52.35 ± 22.21 mg/dl) in active LN. Mean 24-hour urinary protein was higher in LN without activity. Serum creatinine was raised in active LN. LN class III and IV showed higher activity than chronicity. Conclusions Pediatric LN is proliferative and more active as compared with adult counterparts. Activity scores are much higher than chronicity scores.
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Affiliation(s)
- Keya Basu
- Department of Pathology, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
| | - Subhrajyoti Karmakar
- Department of Pathology, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
| | - Moumita Sengupta
- Department of Pathology, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
| | - Arpita Roychowdhury
- Department of Nephrology, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
| | - Alakendu Ghosh
- Department of Rheumatology, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
| | - Manimoy Bandopadhyay
- Director, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
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Abstract
IgG4-related disease (IgG4-RD) is an evolving entity characterized by immune mediated multisystem involvement in the form of fibro inflammatory lesions like sclerosing pancreatitis, dacryoadenitis, Reidel thyroiditis, or chronic sclerosing sialadenitis. Barely, the lesions are restricted to kidney (IgG4-RKD: IgG4-related kidney disease) involving either glomerular or extraglomerular compartment. It is challenging to identify and demands an awareness regarding the entity to reduce the number misdiagnosis and missed diagnosis. Here, we report a case of a 45-year-old woman with IgG4 tubulointerstitial nephritis (IgG4-TIN) who presented with unexplained renal dysfunction as her initial manifestation. This is the first case of IgG4-RKD reported from our tertiary care center among 1864 native renal biopsy in the last two years.
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Affiliation(s)
- Kavita Jain
- Department of Pathology, IPGME and R and SSKM Hospital, Kolkata, West Bengal, India
| | - Moumita Sengupta
- Department of Pathology, IPGME and R and SSKM Hospital, Kolkata, West Bengal, India
| | - Keya Basu
- Department of Pathology, IPGME and R and SSKM Hospital, Kolkata, West Bengal, India
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Karmakar S, Basu K, Sengupta M, Roychowdhury A, Pandey R, Bandopadhyay M. Membranoproliferative Glomerulonephritis- A Disease or a Pattern of Injury? J Clin Diagn Res 2020. [DOI: 10.7860/jcdr/2020/45206.14257] [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: 11/24/2022]
Abstract
Introduction:Membranoproliferative Glomerulonephritis (MPGN) is a pattern of glomerular injury resulting from wide range of diseases sharing a common pathogenesis and thus, presented with large spectrum of clinical presentation starting from slowly progressive subnephrotic range proteinuria to nephritic syndrome and Rapidly Progressive Glomerulonephritis (RPGN). Aim: The aim of the study was to do reanalysis of the aetiological classification of MPGN and its prognostic outcomes. Materials and Methods: A retrospective, cohort study was conducted including the patients of all age groups with MPGN pattern of injury, from February, 2018 to August, 2018 at a Tertiary Healthcare Centre of West Bengal, India. All specimens were examined by two nephropathologists at the institute using both light microscope and immunofluorescence microscope. Haematoxylin and Eosin (H&E), Periodic Acid-Schiff (PAS), silver methanamine, Masson’s Trichrome (MT) stained smears were prepared for light microscopy. Specimens for immunofluorescence microscopy were stained using Fluorescein Isothiocyanate (FITC) conjugated polyclonal rabbit anti-sera against human IgG, IgM, IgA, C3, C1q, kappa, lambda. Correlations were evaluated using Spearman’s rank correlation. A p<0.05 was considered as statistically significant. GRAPHPAD PRISM 5 was used for statistical analysis. Results: From a total of 47 cases, 41 cases in immunoglobulin associated group, 4 cases in C3 nephropathy group and 2 cases in pauci-immune group were found. Autoimmune diseases had the strongest association followed by infections and dysproteinemia. Severity and chronicity parameters were more prevalent in the immunoglobulin positive group. The pauci-immune group showed maximum vascular involvement, indicating it to arise from a vascular pathology. Conclusion: Membranoproliferative Glomerulonephritis is not a single disease entity instead this pattern of injury could be seen in a variety of diseased condition.
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Karmakar S, Basu K, Sengupta M, Sircar D, Roychowdhury A. Granulomatous Interstitial Nephritis - A Series of Six Cases. Indian J Nephrol 2019; 30:26-28. [PMID: 32015596 PMCID: PMC6977373 DOI: 10.4103/ijn.ijn_364_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 01/07/2019] [Accepted: 02/02/2019] [Indexed: 11/04/2022] Open
Abstract
Granulomatous interstitial nephritis is an uncommon variant accounting for about 6% of all tubulointerstitial nephritis. The etiology can be drugs such as antibiotics and nonsteroidal anti-inflammatory drugs and infections such as tuberculosis, sarcoidosis, and fungal infections. Renal biopsy remains the gold standard for establishing the diagnosis. Here, we present a series of six cases of granulomatous interstitial nephritis, of which two cases were associated with lupus nephritis and another two cases with crescentic glomerulonephritis. Focal segmental glomerulosclerosis and mesangiosclerosis with chronic tubulointerstitial nephritis were detected in the rest of the cases. Most of the patients presented with features of nephrotic syndrome. Urine analysis showed albuminuria in all cases. In renal biopsy, interstitial epithelioid cell granuloma was a constant feature along with which there were foci of necrosis and moderate fibrosis in few cases. But none of our cases had any relevant history of prolonged drug intake. Tuberculosis and fungal infections were also ruled out. Thereby in this case series, we subgroup all the cases into two category four cases associated with granulomatous nephritis and two cases with idiopathic granulomatous nephritis.
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Affiliation(s)
| | - Keya Basu
- Department of Pathology, IPGMER and SSKM Hospital, Kolkata, West Bengal, India
| | - Moumita Sengupta
- Department of Pathology, IPGMER and SSKM Hospital, Kolkata, West Bengal, India
| | - Dipankar Sircar
- Department of Nephrology, IPGMER and SSKM Hospital, Kolkata, West Bengal, India
| | - Arpita Roychowdhury
- Department of Nephrology, IPGMER and SSKM Hospital, Kolkata, West Bengal, India
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13
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Dey S, Podder S, Roychowdhury A, Das D, Ghosh CK. Facile synthesis of hierarchical nickel (III) oxide nanostructure: A synergistic remediating action towards water contaminants. J Environ Manage 2018; 211:356-366. [PMID: 29427928 DOI: 10.1016/j.jenvman.2018.01.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 12/27/2017] [Accepted: 01/04/2018] [Indexed: 06/08/2023]
Abstract
Heavy metal ion removal from consumable water is an indispensable need to maintain healthy life. Therefore cost effective and highly efficient sorbents are strongly needed to pose threat to real water pollution. Nanomaterials are widely used to maintain clean aqueous system in a very cost effective way with high removal efficiency. In this present work, pure coral like Ni2O3 nanostructures were prescribed for Cr(VI) remediation which were prepared by two step synthesis procedure at room temperature. The single hierarchical morphology as confirmed from HRTEM (size∼200 nm) were subjected to toxic Cr(VI) ion removal experiments. They were found to remove ∼65% Cr(VI) ions that was higher than that of pure Ni2O3 nanoparticles of comparable size. The enhanced properties were explained on the basis of the defect states present within the nanostructure, investigated by positron annihilation lifetime spectroscopy (PALS). It was found that the hierarchical nanostructure had more number of di-vacancies and vacancy-clusters as compared to the particles. On performing isotherm fitting, it was found that the coral like morphology had a high heterogeneity factor that aided to a high adsorption rate when compared to the pure Ni2O3 nanoparticles (which had a homogenous surface). The synthesized nanostructure was severely toxic to bacterial community having minimum inhibitory concentration (MIC) of ∼300 μg/L. Also the nanostructure exhibited dual functionality towards Cr(VI) and bacteria contaminated water at 200 μg/ml. The maximum Cr(VI) removal efficiency for this dual system is found to be 39% whereas antibacterial activity was turned out to be 30% which was extensively higher than that of toxic Cr(VI) ions. A plausible mechanism for the dual functionality was also predicted.
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Affiliation(s)
- Sayan Dey
- School of Materials Science and Nanotechnology, Jadavpur University, Kolkata, 700032, India
| | - Soumik Podder
- School of Materials Science and Nanotechnology, Jadavpur University, Kolkata, 700032, India.
| | - A Roychowdhury
- UGC-DAE Consortium for Scientific Research, Kolkata Centre, Kolkata, 700098, India; Department of Physics, Krishnath College, Berhampore, 742101, India
| | - Dipankar Das
- UGC-DAE Consortium for Scientific Research, Kolkata Centre, Kolkata, 700098, India
| | - Chandan Kr Ghosh
- School of Materials Science and Nanotechnology, Jadavpur University, Kolkata, 700032, India
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Nandy A, Roychowdhury A, Das D, Pradhan S. Structural and magnetic characterizations of undoped and K-doped NdMnO3 single crystals synthesized by sol–gel route: A comparative study. POWDER TECHNOL 2014. [DOI: 10.1016/j.powtec.2014.01.063] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Singh A, Ghosh R, Kaur P, Golay V, Pandey R, Roychowdhury A. Protocol renal biopsy in patients with lupus nephritis: A single center experience. Saudi J Kidney Dis Transpl 2014; 25:801-7. [DOI: 10.4103/1319-2442.135016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Goswami RP, Sinha D, Mondal S, Mandal S, Ete T, Nag A, Pal J, Roychowdhury A, Ghosh A. Malignant hypertension and nephrotic range proteinuria without hematuria: IgA nephropathy. Indian J Nephrol 2013; 23:390-2. [PMID: 24049285 PMCID: PMC3764723 DOI: 10.4103/0971-4065.116332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- R P Goswami
- Department of Medicine, Institute of Post Graduate Medical Education and Research, Kolkata, India
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Kundu S, Misra S, Halder RK, Roychowdhury A. Pulmonary renal syndrome in a case of Wegener's granulomatosis. Indian J Chest Dis Allied Sci 2013; 55:49-52. [PMID: 23798092] [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: 06/02/2023]
Abstract
We report a case of a 42-year-old patient who presented with Wegener's granulomatosis complicated by pulmonary renal syndrome, i.e., diffuse alveolar haemorrhage and rapidly progressive crescentic glomerulonephritis. The patient was treated with plasmapheresis and immunosuppressive drugs--intravenous cyclophosphamide and methyl prednisolone. The clinical, haematological and biochemical parameters improved substantially and remission is achieved.
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Affiliation(s)
- Susmita Kundu
- Department of Pulmonary Medicine, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India.
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Waikhom R, Sapam R, Patil K, Jadhav JP, Sircar D, Roychowdhury A, Dasgupta S, Pandey R. Herpes labialis in patients with Russell's viper bite and acute kidney injury: a single center experience. Am J Trop Med Hyg 2011; 84:1016-20. [PMID: 21633044 PMCID: PMC3110356 DOI: 10.4269/ajtmh.2011.10-0726] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2010] [Accepted: 03/04/2011] [Indexed: 01/15/2023] Open
Abstract
Snake bite is an important health hazard in tropical countries and is associated with significant morbidity and mortality. Herpes labialis is a common ailment caused by the Herpes simplex virus. There is no published data showing any association between the snake bite and development of Herpes labialis. Here, we present a series of patients who developed Herpes labialis after Russell's viper bite and had acute kidney injury. We attempted to find whether snake bite is an immunosuppressed state and whether it could have pre-disposed the patients to the development of these lesions.
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Affiliation(s)
- Rajesh Waikhom
- Department of Nephrology, Institute of Post Graduate and Medical and Educational Research, Kolkata, West Bengal, India.
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Chattopadhyay BP, Mukherjee AK, Gangopadhyay PK, Alam J, Roychowdhury A. Respiratory effect related to exposure of different concentrations of arsenic in drinking water in West Bengal, India. J Environ Sci Eng 2010; 52:147-154. [PMID: 21114123] [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: 05/30/2023]
Abstract
Arsenic toxicity due to drinking of arsenic contaminated water has been one of the worst environmental health hazards. High levels of arsenic have been reported in different natural water sources from West Bengal for more than two decades. Groundwater contamination by arsenic and its adverse effects on the health of a big population in nine districts of West Bengal have been reported. The problems found were mainly related to skin and respiratory, digestive, cardiovascular and nervous systems. The respiratory effects are largely confined to those who had the skin lesion. The present study was undertaken to evaluate the respiratory effects of exposure to different levels of arsenic in drinking water. The water samples were collected from different tube wells and wells in the study area. Analysis of arsenic was done by Atomic Absorption Spectrophotometer with hydride generation system. Based on the consumption of arsenic concentrations in drinking water the populations were divided into three categories, i.e., <=50 microg/L, >50 - <= 150 microg/L and >150 microg/L. Standard techniques of medical examination were applied to elicit signs and recorded in the pre-designed proforma. A written consent was taken from each subject for their voluntary participation in the study. 112 subjects were investigated. The respiratory effect was evaluated by measuring the pulmonary function test (PFT). Vital Capacity (VC) and Forced Vital Capacity (FVC) were measured by Spirovit-SP-10 (Schiller Health Care Pvt Ltd., Switzerland) and Peak Expiratory Flow Rate by Wrights Peak Flow Meter (Clement and Clarke, UK). The PFT values showed gradual decrement among the males following skin pigmentation, keratosis and arsenicosis. The respiratory function impairment among the male subjects found as restrictive type (26.41%), obstructive type (3.77%) and combined type (7.54%), whereas in females only the restrictive type of impairment (10.16%) was found. Restrictive type of impairments among the subjects increased as the concentration of arsenic in drinking water increased, in males 15.78%, 29.41% and 35.29% and in females 4.54%, 5.00% and 23.52% respectively. The pathophysiologic mechanism, by which ingested arsenic leads to impairments of lung function and increased respiratory symptoms, is yet to be understood and needs further investigation.
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Affiliation(s)
- B P Chattopadhyay
- Regional Occupational Health Centre (Eastern), Indian Council of Medical Research, Block DP, Sector-V, Salt Lake City, Kolkata, India.
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Chattopadhyay BP, Saiyed HN, Roychowdhury A, Alam J. Pulmonary function in aluminium smelter and surrounding community--a case study. J Environ Sci Eng 2007; 49:309-316. [PMID: 18476380] [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: 05/26/2023]
Abstract
The increase of industrial activities in the Angul-Talcher area, Orissa resulted in indiscriminate disposal of waste into the environment leading to the deterioration of the quality of the environment, which affects the health of the workers as well as the community people. Considering the magnitude of the problem, the pulmonary function study had been carried out in one of the largest aluminium producing plant of the country as well as surrounding community people. Aluminium is produced from oxides of alumina by Hall-Heroult smelting process. The electrolysis called as aluminium smelting is carried out in an electrolytic cell (pot) having anode, cathode and electrolyte. The aluminium is deposited in the cathode and the oxygen moves towards anode is released. The workers working at the captive power plant (CPP), which is necessary to meet the power demand of the smelter plant were also investigated. 180 smelter plants workers (non-smoker 129, smoker-51) of different sections and 37 captive power plant workers (non-smoker 29, smoker-8) had undergone pulmonary function tests. Besides these, 85 persons from the surrounding community (non-smoker-66, smoker-19) were also investigated. The workers were all male. Spirometric assessments of Vital Capacity (VC), Forced Vital Capacity (FVC), and Peak Expiratory Flow Rate (PEFR) were done by Spirovit-sp-10 (Schiller Health Care Ltd, Switzerland) and Wrights Peak flow meter (Clement and Clarke, UK). Different lung volumes like FEV1, FEV1%, and flow rates like FEF200-1200ml, FEF25-75% and FEF75-85% were calculated from the same tracings pulmonary function test (PFT) results of the workers according to different age groups, duration of exposures and smoking habits. The mean values of SVC, FVC and FEV1 of smelter plant workers were found higher compared to the community people but the values of captive power plant workers were very much close to the values of the community people. A gradual decrement of the PFT values was found as duration of exposure increased. Lung volumes and the flow rates were decreased as age increases but in some age groups that trend was not followed. It has been found that in each category of subjects, smokers have the higher mean pulmonary function values compared to the non-smokers. Except the community people in all other cases the different flow rates were found higher in nonsmokers compared to smokers. The restrictive, obstructive and combined restrictive and obstructive types of impairments among the subjects were noticed. The respiratory impairment among the workers as a whole was found higher in smelter plant workers (9.44%) followed by the captive power plant workers (5.40%) and the community people (2.35%). In smelter plant workers both the restrictive and obstructive impairments were found higher compared to captive power plant and the community people.
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Affiliation(s)
- B P Chattopadhyay
- Regional Occupational Health Centre (Eastern), Indian Council of Medical Research, Respiratory Physiology Division, Block-DP, Sec-V, Salt Lake City, Kolkata
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Chattopadhyay BP, Mahata A, Kundu S, Alam J, Das S, Roychowdhury A. A study on blood eosinophil level and ventilatory pulmonary function of the workers exposed to storage grain dust. Indian J Occup Environ Med 2007; 11:21-5. [PMID: 21957368 PMCID: PMC3168107 DOI: 10.4103/0019-5278.32460] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The workers engaged in storage grain handling are exposed to storage grain dust and suffer from different respiratory symptoms like, cough wheezing, chest tightness, eye and nasal irritations. It has been reported abroad and the present study results noted that the grain handlers have allergic symptoms like redness of eyes, itching, sneezing, skin rash, breathlessness and decrement of pulmonary function test values. According to their nature of job, the workers of storage grain godowns were divided into four categories i.e., load handling worker (LHW), ancillary, quality control and depot administration workers. The pulmonary function tests (PFT) and the differential count of leucocytes were carried out among the workers by standard technique. Decrement of pulmonary function test values was noted with the increment of blood eosinophil level. The PFT results were presented according to the blood eosinophil level. The decrement of mean PFT values were noticed as the blood level of eosinophil gradually increased from, up to -4%, >4-10% and above 10%. The maximum numbers of workers in different job categories are belonged to >4 -10% of eosinophil level. The percentage figure of workers in different departments were LHW 48.38%, (n=45), ancillary 38.88%, (n=7), quality control 54.54% (n=6) and depot administration workers 47.05% (n=16) are belonged to that range. Among the total workers the higher figure was found >4-10% ranges 47.43% (n=74) workers. The allergic manifestations like redness, itchiness and watering of eyes, sneezing, cough, breathless etc. are reported. These workers have blood eosinophil level and low pulmonary function test values. The respiratory impairments among the workers are restrictive, obstructive and combined restrictive and obstructive type.
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Mukherjee AK, Chattopadhyay B, Bhattacharya S, Roy S, Sen S, Roychowdhury A, Sayed H. Assessment of Occupational Exposure and Pulmonary Function of Cycle Rickshaw Pullers Engaged Around High Traffic Areas of Kolkata Metropolitan City in India. Epidemiology 2006. [DOI: 10.1097/00001648-200611001-01391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Chattopadhyay BP, Roychowdhury A, Alam J, Kundu S. Respiratory health status of the roadside school children at Kolkata. J Environ Sci Eng 2005; 47:202-11. [PMID: 16841459] [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: 05/10/2023]
Abstract
School students in metro cities are often exposed to vehicle exhausts as their schools are situated mostly on the high traffic roadside. Acute exposure to automobile exhaust is associated with increased respiratory symptoms and may decrease and impair lung function in children. The lung functioning performance of the city school children was compared with rural school children where there is no pollution and automobile exhausts. In Kolkata, two schools for boys (n = 210) and two schools for girls (n = 200) and in rural area one school for boys (n = 99) and the other school for girls (n = 95) were investigated. City schools are situated on the main roadside, nearer to the traffic junction. The detail histories about health status of children, if they have any subjective feelings of health related problems during the school hours or after returning from the school, and the family histories were taken by questionnaire method. The pulmonary function tests (PFT) were carried out by Spirometric method by Spirovit-Sp-10 and Wright's Peak flow meter. The mean PFT values of the students found in the normal range. Boys were having higher values compared to the girls in both city and rural schools. Lung volumes and flow rates were significantly higher in rural students. Symptomatic changes like breathlessness, cough and other problems (sneezing, eye irritation, running nose etc.) among city schoolboys found 13%, 7% and 15% and in girls found 12%, 6% and 7% respectively. In symoptomatic students, mean PFT values were significantly lowered compared to non-symptomatic. PFT values were presented in relation to age and height. It has been found that a number of city school students are having different types of respiratory symptoms. Long-term effect of exposure into such environment may develop lung functional impairments.
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Affiliation(s)
- B P Chattopadhyay
- Regional Ocupational Health Centre (Eastern), Block-DP, Sector-V, Salt Lake City, Kolkata-700 091, India.
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Mukherjee AK, Ravichandran B, Bhattacharya SK, Ahmed S, Roy SK, Thakur S, Roychowdhury A, Saiyed HN. Environmental pollution in rural areas of Orissa state due to industrial emissions--with special reference to fluoride. Indian J Environ Health 2003; 45:325-34. [PMID: 15527028] [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: 05/01/2023]
Abstract
Angul - Talcher belt in Central Orissa, having a number of industries contributing to a great extent to deteriorate the air quality of the surrounding villages. Previous reports showed higher SPM, SO2, NO, levels in air and prevalence of respiratory illness, skin and teeth disorders among village population. Higher ground water fluoride, urine and serum fluoride among the cattle were also reported in some villages. Present study reports SPM, SO2, NOx and Fluorides (gaseous and Particulate) in ambient air around aluminium smelter during February and August 1996. High volume sampling technique for SPM and the standard colorimetric methods (BIS) for analyses of SO2 and NOx were adopted. Fluoride in air and water were estimated by standard fluoride ion selective electrode method. Higher SPM, SO2 and NOx values than prescribed CPCB standard were obtained in February. Gaseous fluoride in village air were varied between, 1.66 - 7.64 mg/m3 in February and 1.11 - 22.75 mg/m3 in August, whereas particulate fluoride ranged between, 0.054 - 19.61 mg/m3. Water sources of the villages near the smelter showed fluoride values above permissible limit. The study indicated higher fluoride pollution in air and water of the surrounding villages.
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Affiliation(s)
- A K Mukherjee
- Regional Occupational Health Center (Eastern), Calcutta
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Chattopadhyay BP, Alam J, Roychowdhury A. Pulmonary Function Abnormalities Associated with Exposure to Automobile Exhaust in a Diesel Bus Garage and Roads. Lung 2003; 181:291-302. [PMID: 14705773 DOI: 10.1007/s00408-003-1033-y] [Citation(s) in RCA: 14] [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] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In Kolkata city the road transports are maintained by private and Government organization. A major work force belonged to the State Transport Corporation (KSTC), Government of West-Bengal. The pollution caused by these vehicles affects the workers health and caused different types of respiratory problems. This study was undertaken to assess the pulmonary function status of these workers. City KSTC garage workers were investigated and categorically divided into two group: garage mechanics and the (2) those transporting the passengers (drivers and conductors). Vital capacity (VC), forced vital capacity (FVC) and peak expiratory flow rate (PEFR) were recorded by Spirovit-SP-10 (Schiller Ltd, Switzerland) and Wright's Peak Flow Meter (UK) on 236 workers. The different flow volumes, FEV(1), FEV(1%), and flow rates, FEF(02-121), FEF(25-75%), etc. were calculated. The administrative people had higher PFT than the other categories. Drivers and conductors have almost equal mean PFT values but mechanical workers had slightly higher. PFT values according to different age ranges and duration of exposure showed gradual decrement as age and duration of exposure increased. Non-smokers had higher lung volumes compared to smokers and ex-smokers. Restrictive, obstructive and combined types of impairments were noticed in 28.4%, 1.7% and 2.9%, respectively, workers. The restrictive impairment was found to be 30.4% in conductors; 28.9% in drivers, 27.9% in mechanics and 21.7% in administration people. Obstructive type of impairment was found to be 2.9% in both drivers and conductors. The effect of pollution by dust and fumes may be responsible for these pulmonary function impairments, restrictive impairments being greater.
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Affiliation(s)
- B P Chattopadhyay
- Regional Occupational Health Centre (Eastern), Indian Council of Medical Research, Block-DP, Sector-V, Salt Lake City, Kolkata-700 091, India
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Mondal KK, Roychowdhury A, Paul SN. Propagation of dust-acoustic waves in a bounded dusty plasma. Phys Rev E Stat Nonlin Soft Matter Phys 2002; 65:016404. [PMID: 11800787 DOI: 10.1103/physreve.65.016404] [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] [Subscribe] [Scholar Register] [Received: 06/22/2000] [Revised: 04/12/2001] [Indexed: 05/23/2023]
Abstract
The linear and nonlinear propagation of dust-acoustic waves in a dusty plasma bounded in finite geometry has been theoretically investigated. It is found that the finite geometry of the bounded plasma makes a significant contribution to the instability of the wave. Moreover, the pseudopotential has a positive and inverted profile that prevents the trapping of particles and does not favor solitary waves in bounded dusty plasma.
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Affiliation(s)
- Kalyan Kr Mondal
- Department of Physics, Raja Peary Mohan College, Uttarpara, Hooghly, West Bengal, India
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Abstract
Replacement of single tooth using a threaded titanium screw root coated with hydroxyapatite (HA) for faster bone apposition to implant site is common. Uncoated pure titanium is also used for osseointegration. Usually bone fixation of implant takes four to six months in either case. Quite often, a good number of teeth in a mandible or maxilla are replaced. Usually it is often said that bones appear to be well designed from the point of view of structural engineering. The "maximum-minimum law" claimed by Roux is a rational concept that states that bone provides maximum strength with a minimum of construction material. According to this proposition, stress distribution in bone will be almost uniform under a set of loading conditions. This was found to be true in the case of normal human mandibular bone as examined by some Japanese scientists. The present authors are interested in examining the stress distribution during multiple single tooth replacements using 3D-FEM technique to ascertain how the stress pattern changes with such implantation of three screws in a row in the human mandible, as we are in the process of clinical trial of hydroxyapatite coated and uncoated titanium implant. This will be of considerable interest to the dental surgeons, who prompted us to address this problem. Our results depicted the mean values of various stress in cortical and cancellous bone while applying the maximum masticatory load of 50 N in each teeth. The generated stress level is within the safe range of stress for bones. However, such screws cannot be applied to osteoporotic or other diseased mandible where bone strength may be quite low.
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Abstract
To design a temporal mandibular joint (TMJ), the designer should pay attention to the range of movement in the joint, the strength of the joint, and the size of the implant should conform, so that it does not hamper facial configuration. As a number of designs are available, in this study we have considered one of the most common and widely used implants for analysis. The main objective of this study is to examine the stress-strain behavior at the implant and what is happening at the implant bone interface. We have also examined whether implant material can be replaced by UHMWPE (ultra high molecular weight polyethylene) instead of titanium or Co-Cr-Mo alloy. Whether the change of positions of the screw used for fixation has any effect or not, we have modeled it considering actual shape and size, then divided it into number finite elements by using a FEM package. An appropriate surgical construct was modeled and loaded and studied for different parameters. We have shown that the metallic prostheses are good from a stress-strain point of view and UHMWPE cannot be used as such.
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Affiliation(s)
- A Roychowdhury
- Applied Mechanics Department, B. E. College, Shibpur (D.U.)
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Roychowdhury A, Roypaladhi PK, Bhattacharya DK. Blood donation and risk of post-transfusion hepatitis. J Indian Med Assoc 1990; 88:81-2. [PMID: 2262687] [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: 12/31/2022]
Abstract
A survey was conducted among 300 blood donors of urban and rural population (the Sunderbans) and paid donors to evaluate the nutritional status, serum proteins, immunoglobulin and alanine aminotransferase (ALT) on the persistence of carrier state for post-transfusion hepatitis (PTH). Paid donors showed lowering of serum albumin and elevation of immunoglobulin and ALT. Nutritional and immunoglobulin profiles of rural donors of the Sunderbans, differed from those of voluntary donors of urban area. In the presence of subclinical hepatitis, ALT measurement alone is not a reliable guide for identification of individual carriers.
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