1
|
Ferdaus SJ, Paul SK, Nasreen SA, Haque N, Sadekuzzaman M, Karim MR, Islam SM, Al Mamun A, Sathi FA, Basak P, Nahid RB, Aktar S, Kobayashi N. The Prevalence, Risk Factors, and Antimicrobial Resistance Determinants of Helicobacter pylori Detected in Dyspeptic Patients in North-Central Bangladesh. Infect Dis Rep 2024; 16:181-188. [PMID: 38525761 PMCID: PMC10961801 DOI: 10.3390/idr16020014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 02/03/2024] [Accepted: 02/20/2024] [Indexed: 03/26/2024] Open
Abstract
Chronic infection of Helicobacter pylori represents a key factor in the etiology of gastrointestinal diseases, with high endemicity in South Asia. The present study aimed to determine the prevalence of H. pylori among dyspeptic patients in north-central Bangladesh (Mymensingh) and analyze risk factors of infection and antimicrobial resistance (AMR) determinants in the pathogen. Endoscopic gastrointestinal biopsy samples were collected from dyspeptic patients for a one-year period from March 2022 and were checked for the presence of H. pylori via the rapid urease test and PCR and further analyzed for the status of virulence factors vacA/cagA and genetic determinants related to AMR via PCR with direct sequencing or RFLP. Among a total of 221 samples collected, 80 (36%) were positive for H. pylori, with the vacA+/cagA+ genotype being detected in almost half of them. H. pylori was most prevalent in the age group of 41-50-year-olds, with it being more common in males and rural residents with a lower economic status and using nonfiltered water, though the rates of these factors were not significantly different from those of the H. pylori-negative group. Relatively higher frequency was noted for the A2147G mutation in 23S rRNA, related to clarithromycin resistance (18%, 7/39). Amino acid substitutions in PBP-1A (T556S) and GyrA (N87K and D91N) and a 200 bp deletion in rdxA were detected in samples from some patients with recurrence after treatment with amoxicillin, levofloxacin, and metronidazole, respectively. The present study describes the epidemiological features of H. pylori infection in the area outside the capital in Bangladesh, revealing the spread of AMR-associated mutations.
Collapse
Affiliation(s)
- Syeda Jannatul Ferdaus
- Department of Microbiology, Mymensingh Medical College, Mymensingh 2200, Bangladesh; (S.J.F.); (S.A.N.); (N.H.); (A.A.M.); (F.A.S.); (R.B.N.)
| | | | - Syeda Anjuman Nasreen
- Department of Microbiology, Mymensingh Medical College, Mymensingh 2200, Bangladesh; (S.J.F.); (S.A.N.); (N.H.); (A.A.M.); (F.A.S.); (R.B.N.)
| | - Nazia Haque
- Department of Microbiology, Mymensingh Medical College, Mymensingh 2200, Bangladesh; (S.J.F.); (S.A.N.); (N.H.); (A.A.M.); (F.A.S.); (R.B.N.)
| | - Mohammad Sadekuzzaman
- Department of Livestock Services, Central Disease Investigation Laboratory (CDIL), 48, KaziAlauddin Road, Dhaka 1000, Bangladesh;
| | - Mohammad Reazul Karim
- Department of Gastroenterology, Mymensingh Medical College, Mymensingh 2200, Bangladesh;
| | - Syed Mahmudul Islam
- Department of Microbiology and Hygiene, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh;
| | - Abdullah Al Mamun
- Department of Microbiology, Mymensingh Medical College, Mymensingh 2200, Bangladesh; (S.J.F.); (S.A.N.); (N.H.); (A.A.M.); (F.A.S.); (R.B.N.)
| | - Fardousi Akter Sathi
- Department of Microbiology, Mymensingh Medical College, Mymensingh 2200, Bangladesh; (S.J.F.); (S.A.N.); (N.H.); (A.A.M.); (F.A.S.); (R.B.N.)
| | - Proma Basak
- Shaheed Syed Nazrul Islam Medical College, Kishoreganj 2300, Bangladesh;
| | - Rifat Binte Nahid
- Department of Microbiology, Mymensingh Medical College, Mymensingh 2200, Bangladesh; (S.J.F.); (S.A.N.); (N.H.); (A.A.M.); (F.A.S.); (R.B.N.)
| | - Suraiya Aktar
- Department of Microbiology, Dhaka Central International Medical College and Hospital, 2/1 Ring Road, Shyamoli, Dhaka 1207, Bangladesh;
| | - Nobumichi Kobayashi
- Department of Hygiene, School of Medicine, Sapporo Medical University, S-1 W-17, Chuo-ku, Sapporo 060-8556, Japan
| |
Collapse
|
2
|
|
3
|
Chatterjee S, Basak P, Tan S, Lefort S, Pellacani D, Safneck J, Buchel E, Aparicio S, Eaves CJ, Raouf A. Abstract P5-07-04: Not presented. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p5-07-04] [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
This abstract was not presented at the conference.
Citation Format: Chatterjee S, Basak P, Tan S, Lefort S, Pellacani D, Safneck J, Buchel E, Aparicio S, Eaves CJ, Raouf A. Not presented [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P5-07-04.
Collapse
Affiliation(s)
- S Chatterjee
- Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada; Research Institute of Oncology & Hematology, CancerCare Manitoba, Winnipeg, MB, Canada; Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, BC, Canada; University of British Columbia, Vancouver, BC, Canada; Section of Plastic Surgery, Faculty of Health Sciences University of Manitoba, Winnipeg, MB, Canada
| | - P Basak
- Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada; Research Institute of Oncology & Hematology, CancerCare Manitoba, Winnipeg, MB, Canada; Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, BC, Canada; University of British Columbia, Vancouver, BC, Canada; Section of Plastic Surgery, Faculty of Health Sciences University of Manitoba, Winnipeg, MB, Canada
| | - S Tan
- Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada; Research Institute of Oncology & Hematology, CancerCare Manitoba, Winnipeg, MB, Canada; Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, BC, Canada; University of British Columbia, Vancouver, BC, Canada; Section of Plastic Surgery, Faculty of Health Sciences University of Manitoba, Winnipeg, MB, Canada
| | - S Lefort
- Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada; Research Institute of Oncology & Hematology, CancerCare Manitoba, Winnipeg, MB, Canada; Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, BC, Canada; University of British Columbia, Vancouver, BC, Canada; Section of Plastic Surgery, Faculty of Health Sciences University of Manitoba, Winnipeg, MB, Canada
| | - D Pellacani
- Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada; Research Institute of Oncology & Hematology, CancerCare Manitoba, Winnipeg, MB, Canada; Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, BC, Canada; University of British Columbia, Vancouver, BC, Canada; Section of Plastic Surgery, Faculty of Health Sciences University of Manitoba, Winnipeg, MB, Canada
| | - J Safneck
- Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada; Research Institute of Oncology & Hematology, CancerCare Manitoba, Winnipeg, MB, Canada; Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, BC, Canada; University of British Columbia, Vancouver, BC, Canada; Section of Plastic Surgery, Faculty of Health Sciences University of Manitoba, Winnipeg, MB, Canada
| | - E Buchel
- Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada; Research Institute of Oncology & Hematology, CancerCare Manitoba, Winnipeg, MB, Canada; Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, BC, Canada; University of British Columbia, Vancouver, BC, Canada; Section of Plastic Surgery, Faculty of Health Sciences University of Manitoba, Winnipeg, MB, Canada
| | - S Aparicio
- Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada; Research Institute of Oncology & Hematology, CancerCare Manitoba, Winnipeg, MB, Canada; Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, BC, Canada; University of British Columbia, Vancouver, BC, Canada; Section of Plastic Surgery, Faculty of Health Sciences University of Manitoba, Winnipeg, MB, Canada
| | - CJ Eaves
- Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada; Research Institute of Oncology & Hematology, CancerCare Manitoba, Winnipeg, MB, Canada; Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, BC, Canada; University of British Columbia, Vancouver, BC, Canada; Section of Plastic Surgery, Faculty of Health Sciences University of Manitoba, Winnipeg, MB, Canada
| | - A Raouf
- Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada; Research Institute of Oncology & Hematology, CancerCare Manitoba, Winnipeg, MB, Canada; Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, BC, Canada; University of British Columbia, Vancouver, BC, Canada; Section of Plastic Surgery, Faculty of Health Sciences University of Manitoba, Winnipeg, MB, Canada
| |
Collapse
|
4
|
Basak P, Chatterjee S, Bhat V, Jin H, Su A, Murphy LC, Raouf A. Abstract P3-04-25: Role of H19, a long non-coding RNA, in development of resistance to endocrine therapy in breast cancer cells. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p3-04-25] [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
Introduction:
Majority of breast cancer tumors are Estrogen receptor positive (ER+) where antiestrogen therapies (endocrine therapies) are the best therapeutic strategy to treat this type of tumors. However, eventually over 30% of patients will develop resistance to endocrine therapies resulting in disease relapse. We recently showed that the long noncoding RNA, H19, is an estrogen target gene that plays a significant role in estrogen-induced proliferation of the normal and malignant ER+ cells. We therefore hypothesize that H19 expression is also important to the proliferation of endocrine therapy resistant cells. In this study, we examined if estrogen-independent H19 expression is important to the development of endocrine therapy resistance.
Objective:
The overall objective of this project is to use therapy sensitive (MCF-7) and therapy-resistant (LCC9) breast cancer cells as model systems to examine the role of long non-coding RNA H19 in development and maintenance of resistance to endocrine therapy.
Methodology and Results:
We examined the expression of H19 in ER+ breast cancer cells (MCF7) that under the selective pressure of fulvesterant (ICI, ER down regulator) acquire resistance to ICI. We observed that while H19 expression was initially decreased as expected, its expression subsequently increased in the ICI-resistant MCF7 cells. Interestingly, H19 knockdown in MCF7 cells significantly decrease their proliferation as determined by Flowcytometry and made them more sensitive to ICI. We also examined H19 expression in the ICI-resistant LCC9 cells and found that ICI treatment increased H19 expression. Interestingly, H19 knockdown in the LCC9 cells decreased their proliferation and surprisingly made them sensitive to ICI treatment. Previous observations indicate that NOTCH4 receptor (NR4) may be involved in endocrine therapy resistance. Interestingly we found that in presence of ICI, NR4 expression is increased and that forced activation of NR4 markedly increases H19 expression in LCC9 cells.
Conclusion:
Altogether these observations suggest that H19 plays an important role in the development of endocrine therapy resistance and further our understanding of the cellular and molecular mechanisms involved in endocrine therapy resistance. These and similar studies could potentially lead to the development of new therapies to treat therapy resistant tumor cells. Further experiments would reveal if signalling pathways that regulate H19 expression independent of estrogen are useful therapies against endocrine therapy resistant tumors.
Citation Format: Basak P, Chatterjee S, Bhat V, Jin H, Su A, Murphy LC, Raouf A. Role of H19, a long non-coding RNA, in development of resistance to endocrine therapy in breast cancer cells [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P3-04-25.
Collapse
Affiliation(s)
- P Basak
- Research Institute of Oncology and Hematology, Winnipeg, MB, Canada; University of Manitoba, Winnipeg, MB, Canada
| | - S Chatterjee
- Research Institute of Oncology and Hematology, Winnipeg, MB, Canada; University of Manitoba, Winnipeg, MB, Canada
| | - V Bhat
- Research Institute of Oncology and Hematology, Winnipeg, MB, Canada; University of Manitoba, Winnipeg, MB, Canada
| | - H Jin
- Research Institute of Oncology and Hematology, Winnipeg, MB, Canada; University of Manitoba, Winnipeg, MB, Canada
| | - A Su
- Research Institute of Oncology and Hematology, Winnipeg, MB, Canada; University of Manitoba, Winnipeg, MB, Canada
| | - LC Murphy
- Research Institute of Oncology and Hematology, Winnipeg, MB, Canada; University of Manitoba, Winnipeg, MB, Canada
| | - A Raouf
- Research Institute of Oncology and Hematology, Winnipeg, MB, Canada; University of Manitoba, Winnipeg, MB, Canada
| |
Collapse
|
5
|
Basak P, Pattanayak R, Nag S, Bhattacharyya M. pH-induced conformational isomerization of leghemoglobin from Arachis hypogea. Biochemistry Moscow 2014; 79:1255-61. [DOI: 10.1134/s0006297914110133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
6
|
Bandosz P, Aspelund T, Basak P, Bennett K, Bjorck L, Bruthans J, Guzman-Castillo M, Hughes J, Hotchkiss J, Kabir Z, Laatikainen T, Leyland A, O’Flaherty M, Palmieri L, Rosengren A, Bjork R, Vartiainen E, Zdrojewski T, Capewell S, Critchley J. OP72 EUROHEART II - comparing policies to reduce future coronary heart disease mortality in nine European countries: modelling study. Br J Soc Med 2014. [DOI: 10.1136/jech-2014-204726.74] [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]
|
7
|
Chaklader M, Das P, Pereira JA, Chatterjee S, Basak P, Law A, Banerjee T, Chauhan S, Law S. Telomerase reverse transcriptase (TERT) expression and role of vincristine sulfate in mouse model of malignancy related peritoneal ascites: an experimental metastatic condition. Exp Oncol 2011; 33:83-89. [PMID: 21716204] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
AIM To evaluate the efficacy of intraperitoneal vincristine administration into ascitic sarcoma-180 bearing mice as a model of human malignant ascites regarding various peritoneal/retroperitoneal sarcomatosis, and to evaluate the flowcytometric telomerase reverse transcriptase expression for the diagnostic and prognostic purposes. METHODS Present study included disease induction by intraperitoneal homologous ascitic sarcoma-180 transplantation followed by in vivo intraperitoneal drug administration to study mitotic index, flowcytometric cell cycle and telomerase reverse transcriptase expression pattern, erythrosin-B dye exclusion study for malignant cell viability assessment. Besides, in vitro malignant ascite culture in presence and absence of vincristine sulfate and survival study were also taken into consideration. RESULTS Intraperitoneal vincristine administration (concentration 0.5 mg/kg body weight) significantly diminished the mitotic index in diseased subjects in comparison to untreated control subjects. Treated group of animals showed increased life span and median survival time. Cell viability assessment during the course of drug administration also revealed gradual depression on cell viability over time. Flowcytometric cell cycle analysis showed a good prognostic feature of chemotherapeutic administration schedule by representing high G2/M phase blocked cells along with reduced telomerase reverse transcriptase positive cells in treated animals. CONCLUSION We conclude that long term administration of vincristine sulfate in small doses could be a good pharmacological intervention in case of malignant peritoneal ascites due to sarcomatosis as it indirectly reduced the level of telomerase reverse transcriptase expression in malignant cells by directly regulating cell cycle and simultaneously increased the life expectancy of the diseased subjects.
Collapse
Affiliation(s)
- M Chaklader
- Stem Cell Research and Application Unit, Department of Biochemistry and Medical Biotechnology, Calcutta School of Tropical Medicine, Kolkata-700073, West Bengal, India
| | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Shin JH, Basak P, Kerr J, Cairns E. Rechargeable Li/LiFePO4 cells using N-methyl-N-butyl pyrrolidinium bis(trifluoromethane sulfonyl)imide–LiTFSI electrolyte incorporating polymer additives. Electrochim Acta 2008. [DOI: 10.1016/j.electacta.2008.07.062] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
9
|
Basak P, Nisha CK, Manorama SV, Maiti S, Jayachandran KN. Probing the association behavior of poly(ethylene glycol)-based amphiphilic comb-like polymer in NaCl solution. J Colloid Interface Sci 2003; 262:560-5. [PMID: 16256638 DOI: 10.1016/s0021-9797(03)00119-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [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: 06/02/2002] [Accepted: 01/28/2003] [Indexed: 11/21/2022]
Abstract
The effect of salt on the associative behavior of intramolecular aggregates obtained from poly(ethylene glycol)-based amphiphilic comb-like polymers in aqueous medium at pH 6.2 has been investigated by surface tension, fluorescence probe, dynamic light-scattering, and viscometry techniques. Results reveal that the addition of salt screens the electrostatic repulsion between the charges along the polymer backbone in the aggregates and consequently (1) reduces the surface activity at the air/water interface, (2) leads to the contraction of the polymer backbone, and (3) reduces the hydrodynamic sizes of the aggregates. In contrast, the hydrophobicity of the aggregates remains unperturbed.
Collapse
Affiliation(s)
- P Basak
- Materials Science Group, Inorganic and Physical Chemistry Division, Indian Institute of Chemical Technology, CSIR, Hyderabad 500007, India
| | | | | | | | | |
Collapse
|
10
|
Barbhuiya JN, Datta PK, Basak P, Banerjee PP. Pilomatrixoma. Indian J Dermatol Venereol Leprol 1996; 62:318-319. [PMID: 20948103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Clinical and histopathological features of two cases of pilomatrixoma are reported. The tumour in each case was slow-growing, asymptomatic and at the same site. Histopathology showed classical eosinophilic ghost cell, surrounded by basophilic cells, along with areas of calcification and keratinization.
Collapse
Affiliation(s)
- J N Barbhuiya
- Department of Medicine (Dermatology Unit), Medical College, 88, College Street, Calcutta-700073, India
| | | | | | | |
Collapse
|
11
|
Chakrabarty A, Mukherjee M, Chakrabarty AN, Dastidar SG, Basak P, Saha B. Electron microscopic characteristics of actinomycetic agents having aetiological association with human leprosy and epizootic ulcerative syndrome of fish. Indian J Exp Biol 1996; 34:810-2. [PMID: 8979491] [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: 02/03/2023]
Abstract
The transmission electron microscopic (TEM) studies of the human leprosy derived chemoautotrophic nocardio-form (CAN) bacteria and EUS derived CAN bacteria showed presence of double contoured cell-walls consisting of an electron transparent and a dense layer. The fibrillar structures on the surface of these CAN bacterial cells also suggested their similarity to the human tissue derived Mycobacterium leprae cells. These EM studies further revealed mycelial and coccoid bodies in all these bacteria as was observed originally.
Collapse
Affiliation(s)
- A Chakrabarty
- Department of Medical Microbiology & Parasitology, Calcutta University College of Medicine, India
| | | | | | | | | | | |
Collapse
|
12
|
Basak P, Banerjee PP. Culture of nocardioform bacilli from leprosy patients & clinical evaluation of nocardioform bacilli derived antigen. Indian J Med Res 1995; 101:150-3. [PMID: 7751044] [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] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
An antigen derived from cultured nocardioform bacilli was compared with Mitsuda lepromin in intradermal skin test reactions. Nocardioform bacilli were cultured in gelatin minimal medium from the tissue fluid of 85 lepromatous patients (56 M, 29 F). Of these, 65 samples showed uncontaminated growth of the organism, which were pooled for the manufacture of the test antigen. This antigen was intradermally tested in 50 untreated leprosy patients irrespective of the type, together with Mitsuda lepromin and sterile gelatin minimal media, which served as a control. No early reaction was observed at 72 h, while the late reaction at 28 days was positive in all patients in the Tuberculoid (TT) group with both antigens. Eighteen patients (81.8%) in the Borderline tuberculoid (BT) group reacted strongly to Mitsuda lepromin at 28 days, while 21 patients (95.5%) in this group showed a strong late reaction with the test antigen. The lepromatous (LL) group did not show any reaction with the two antigens. It is inferred that nocardioform bacilli are easy to cultivate, and that the test antigen compares well with Mitsuda lepromin.
Collapse
Affiliation(s)
- P Basak
- Department of Medicine, Medical College Hospital, Calcutta
| | | |
Collapse
|
13
|
Abstract
Concurrent skin and nerve histology was evaluated in 60 leprosy patients (25 BT, 28 BL and 7 LL). The twin aims were to study the comparative histology and the usefulness of nerve histology in the classification of the disease. In BT patients, clinical and histological classification was in agreement in 11 (44%) skin and 17 (68%) nerve biopsies. Concurrent skin and nerve histology was in consonance in 14 (56%) BT patients, while in 6 (24%) patients, only nerve histology was helpful in the classification of the disease, the skin histology being non-specific. Nerve histology was classified as BL in 3 (12%) BT patients, the skin histology was non-specific. In the BL group, the histology of 23 (82.4%) nerve biopsies correlated with the clinical classification, in contrast to skin histology which correlated with clinical assessment in 19 (68%) patients only. In the LL patients, the histology of nerve correlated with the clinical classification in 5 patients (71.4%), compared to histology of the skin in 4 (57%) patients only. The GF was higher in the nerves than in the skin throughout the leprosy spectrum (BT, BL, LL); the difference was, however, marginal in BL leprosy. The average bacteriological index (BI) was higher in nerves (4+) compared to that of skin histology and slit skin smears (3+) in BL leprosy. There was, however, no difference in the BI of the slit skin smears, skin and nerve biopsies in lepromatous leprosy.(ABSTRACT TRUNCATED AT 250 WORDS)
Collapse
Affiliation(s)
- S Kaur
- Department of Dermatology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | | | | | | | | |
Collapse
|
14
|
Kaur S, Sharma VK, Basak P, Kaur I. Paucibacillary multidrug therapy in leprosy. 7 1/2 years experience. Indian J Lepr 1992; 64:153-61. [PMID: 1607713] [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: 12/27/2022]
Abstract
Three hundred and twenty-three paucibacillary (PB) leprosy patients were treated with WHO-recommended multidrug therapy (MDT) and followed up for over 7 1/2 years. The paucibacillary MDT regimen (PBR) was well accepted and tolerated. Complete clinical regression was attained in 61.2% patients after 6 doses of PBR. Persistence of clinical activity after 6 months of therapy was associated with occurrence of type I upgrading reaction, presence of six or more patches and more than two thickened major nerve trunks. Reversal reactions were encountered in 15.9% patients, one third of which were accompanied by severe neuritis. Delayed upgrading reaction occurred in six patients, two patients had relapse one and two years after stopping of PBR. The WHO recommended MDT regimen for paucibacillary cases needs careful evaluation and it may be necessary to extend the treatment beyond six months in certain situations.
Collapse
Affiliation(s)
- S Kaur
- Department of Dermatology, Postgraduate Institute of Medical Education and Research, Chandigarh
| | | | | | | |
Collapse
|
15
|
Basak P, Datta A. CP violation in the Z4 model with four generations. Phys Rev D Part Fields 1991; 44:865-870. [PMID: 10013940 DOI: 10.1103/physrevd.44.865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
16
|
Basak P, Kanwar AJ, Mistri G. Drug rash in a hemiplegic. Arch Dermatol 1990; 126:688-9. [PMID: 2334198] [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: 12/31/2022]
|
17
|
|
18
|
Basak P, Kanwar AJ, Kaur S, Dhar S. Faun-tail nevus--a case report. Indian J Dermatol 1989; 34:66-8. [PMID: 2632380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
A Case of faun-tail nevus is presented. A long tuft of hair over the back in the lumbar region hid a bony defect of the fifth lumbar spine. No neurological symptoms were encountered.
Collapse
|
19
|
Basak P, Dhar S, Kanwar AJ. Involvement of the legs in idiopathic striae distensae--a case report. Indian J Dermatol 1989; 34:21-2. [PMID: 2625361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
A case of idiopathic striae distensae (ISD) is presented. The patient was a healthy young adult with no history of weight lifting, use of systemic or local corticosteroids, infections or trauma. Horizontally disposed striae were located on the abdomen, back and legs. To the best of our knowledge this is the first report case of ISD where idiopathic striae were present below the knees.
Collapse
|