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Naskar S, Nandi G, Ghosh T. An examination of the reaction pathways of XO + O → X + O2 (X = Br and I). COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Barman K, Konwar D, Sarma D, Thomas R, Naskar S, Pegu S, Banik S, Mohan N, Tamuli M, Kaushik P, Rajkhowa S. Effect of supplementation of methionine chelated trace minerals on growth, nutrient utilization and blood profiles in crossbred (Hampshire X Ghungroo) finisher pigs. ANIM NUTR FEED TECHN 2022. [DOI: 10.5958/0974-181x.2022.00003.8] [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: 10/17/2022]
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Naskar S, Nandi G, Ghosh TK. Ab initio study of the mechanism of the reaction ClO + O --> Cl + O2. J MEX CHEM SOC 2021. [DOI: 10.29356/jmcs.v66i1.1628] [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: 11/20/2022]
Abstract
Abstract. Ab initio investigation on the reaction mechanism of ClO + O --> Cl + O2 reaction has been performed using correlation consistent triple zeta basis set. The geometry and frequency of the reactants, products, minimum energy geometries and transition states are obtained using MP2 method and energetics are obtained at the QCISD(T)//MP2 level of theory. Primarily, a possible reaction mechanism is obtained on the basis on IRC calculations using MP2 level of theory. To obtain true picture of the reaction path, we performed IRC calculations using CASSCF method with a minimal basis set 6-31G**. Some new equilibrium geometries and transition states have been identified at the CASSCF level. Energetics are also obtained at the QCISD(T)//CASSCF method. Possible reaction paths have been discussed, which are new in literature. Heat of reaction is found to be consistent with the experimental data. Bond dissociation energies to various dissociation paths are also reported.
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Kedare GM, . V, Karunakaran M, Mandal A, Ghosh MK, Naskar S. Effect of area specific mineral mixture supplementation on milk production, biochemical and blood mineral status of Black Bengal goats. IJDS 2021. [DOI: 10.33785/ijds.2021.v74i02.007] [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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Mukhopadhyay T, Naskar S, Gupta KK, Kumar R, Dey S, Adhikari S. Probing the Stochastic Dynamics of Coronaviruses: Machine Learning Assisted Deep Computational Insights with Exploitable Dimensions. Adv Theory Simul 2021. [DOI: 10.1002/adts.202000291] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- T. Mukhopadhyay
- Department of Aerospace Engineering Indian Institute of Technology Kanpur Kanpur India
| | - S. Naskar
- Department of Aerospace Engineering Indian Institute of Technology Bombay Mumbai India
| | - K. K. Gupta
- Department of Mechanical Engineering National Institute of Technology Silchar Silchar India
| | - R. Kumar
- Department of Mechanical Engineering National Institute of Technology Silchar Silchar India
| | - S. Dey
- Department of Mechanical Engineering National Institute of Technology Silchar Silchar India
| | - S. Adhikari
- College of Engineering Swansea University Swansea United Kingdom
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Mukhopadhyay T, Mahata A, Naskar S, Adhikari S. Probing the Effective Young's Modulus of ‘Magic Angle’ Inspired Multi‐Functional Twisted Nano‐Heterostructures. Adv Theory Simul 2020. [DOI: 10.1002/adts.202000129] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- T. Mukhopadhyay
- Department of Aerospace Engineering Indian Institute of Technology Kanpur Kanpur India
| | - A. Mahata
- School of Engineering Brown University Providence Rhode Island USA
| | - S. Naskar
- Department of Aerospace Engineering Indian Institute of Technology Bombay Bombay India
| | - S. Adhikari
- College of Engineering Swansea University Swansea UK
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Bandyopadhyay R, Bandyopadhyay U, Chatterjee U, Naskar S, Nandy S, Basu K. Study of Clinicopathological Spectrum and Pattern of Expression of Cyclooxygenase‑2 in Urothelial Carcinomas of Bladder. Indian J Med Paediatr Oncol 2018. [DOI: 10.4103/ijmpo.ijmpo_81_17] [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: 11/04/2022] Open
Abstract
Abstract
Introduction: Overexpression of cyclooxygenase-2 (COX2) in urothelial carcinoma of bladder (UCB) had been studied in the past by different workers and the results were contradictory. The objective of the present study was to evaluate the prognostic implication of COX2 expression in primary urothelial carcinomas of the urinary bladder and its correlation with clinical parameters, tumor stage, grade, and recurrence. Materials and methods: A total of 68 cases who underwent surgery for urothelial carcinoma in our medical college from January 2013 to December 2015 were evaluated in our study. Hematoxylin and eosin-stained slides were examined by two faculties applying standard reporting protocol. Tumor staging and grading was performed as per the WHO guidelines. Immunohistochemistry for expression of COX2 was performed to study any correlation of tumor grade with COX2 expression. The distribution of COX2 positivity was studied in tumors stratified according to established bladder cancer prognostic factor, for example, tumor size, grade, invasion, and spread. Results: Out of 68 cases, 42 cases showed COX2 positivity (61%). In low-grade cases of bladder carcinoma, COX2 positivity was 16 out of 24 cases (60%), and in high-grade cases, COX2 positivity was 10 out of 18 cases (64.28%).Conclusion: In the present study, the association of COX2 overexpression with advanced tumor invasion and tumor grade has been substantiated. Hence, COX2 expression can be taken as a prognostic factor along with other usual prognostic factors in patients of UCB.
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Affiliation(s)
- Ranjana Bandyopadhyay
- Department of Pathology, Calcutta National Medical College, Kolkata, West Bengal, India
| | - Ujjwal Bandyopadhyay
- Department of Pathology, Calcutta National Medical College, Kolkata, West Bengal, India
| | - Uttara Chatterjee
- Department of Pathology, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
| | - Sukla Naskar
- Department of Pathology, Calcutta National Medical College, Kolkata, West Bengal, India
| | - Sumit Nandy
- Department of Pathology, Calcutta National Medical College, Kolkata, West Bengal, India
| | - Keya Basu
- Department of Pathology, Calcutta National Medical College, Kolkata, West Bengal, India
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Das L, Naskar S, Sarkar T, Maiti AK, Das S, Chatterjee J. Immunohistochemical evaluation of prime molecules in cervical lesions towards assessment of malignant potentiality. J Cancer Res Ther 2018. [PMID: 29516923 DOI: 10.4103/0973-1482.158029] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Objective A comparative immunohistochemical evaluation of p63, CD105, and E-cadherin expression pattern in histopathologically confirmed normal cervical epithelium (NCM), dysplastic cervical epithelium (DYS) and squamous cell carcinoma (SCC) of uterine cervix towards assessing malignant potentiality of the precancerous condition. Materials and Methods The biopsies from cervical mucosa (normal, dysplasia, and cancer) were studied by routine hematoxylin and eosin (H and E) and by immunohistochemistry for p63, E-cadherin, and CD105 expression. The expressions of these molecules were assessed in a semiquantitative way by (i) counting p63 cell population and distribution, (ii) intensity scoring of E-cadherin along the expression path, and (iii) measuring CD105 expression density. Result p63+ cells were highest in carcinomas followed by dysplasia and normal. An abrupt increase in CD105 expression was observed through change of normal to dysplasia and cancer. A decrease in membranous E-cadherin expression was noticed in the transformation from normal to precancer and cancers. Conclusion The malignant potential of the dysplastic conditions is likely to be correlated with upregulation in p63 and CD105 expression and a simultaneous downregulation of membranous E-cadherin.
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Affiliation(s)
- Lopamudra Das
- Department of Medical Science and Technology, Indian Institute of Technology, Kharagpur; Department of Materials Engineering, Indian Institute of Science, Bangalore, Karnataka, India
| | - Sukla Naskar
- Department of Pathology, Calcutta National Medical College, Kolkata, India
| | - Tandra Sarkar
- Department of Radiology, Apollo Gleanengles Hospital, Kolkata, India
| | - Ashok Kumar Maiti
- Department of Pathology, Midnapore Medical College and Hospital, Midnapore, West Bengal, India
| | - Soumen Das
- Department of Medical Science and Technology, Indian Institute of Technology, Kharagpur, India
| | - Jyotirmoy Chatterjee
- Department of Medical Science and Technology, Indian Institute of Technology, Kharagpur, India
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Vashi Y, Naskar S, Chutia T, Banik S, Singh AK, Goswami J, Sejian V. Comparative assessment of native, crossbred and exotic pigs during different seasons (winter, spring and summer) based on rhythmic changes in the levels of serum cortisol, lactate dehydrogenase levels and PBMC HSP70 mRNA expression pattern. BIOL RHYTHM RES 2018. [DOI: 10.1080/09291016.2017.1410019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Y. Vashi
- ICAR-National Research Centre on Pig, Guwahati, India
- Department of Biotechnology, Assam Don Bosco University, Sonapur, India
| | - S. Naskar
- ICAR-National Research Centre on Pig, Guwahati, India
- ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, India
| | - T. Chutia
- ICAR-National Research Centre on Pig, Guwahati, India
| | - S. Banik
- ICAR-National Research Centre on Pig, Guwahati, India
| | - A. K. Singh
- ICAR-National Research Centre on Pig, Guwahati, India
| | - J. Goswami
- College of Veterinary Science, Assam Agricultural University, Guwahati, India
| | - V. Sejian
- ICAR-National Institute of Animal Nutrition and Physiology, Bengaluru, India
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Singh AK, Naskar S, Saikia B, Vashi Y, Gupta S, Banik S, Tamuli MK, Pande V, Sarma DK, Dhara SK. Effect of testicular tissue lysate on developmental competence of porcine oocytes matured and fertilized in vitro. Reprod Domest Anim 2016; 52:183-188. [PMID: 27862454 DOI: 10.1111/rda.12875] [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] [Received: 06/13/2016] [Accepted: 09/21/2016] [Indexed: 11/29/2022]
Abstract
The objective of the present study was to investigate the effect of testicular tissue lysate (TTL) on developmental competence of germinal vesicle (GV) stage porcine oocytes. Two types of TTL were prepared through repeated freeze-thaw in liquid nitrogen, one from whole testicular tissue (wTTL) and other from either of four different sections of testes, namely just beneath the tunica albuginea (TA), from the transitional area between the seminiferous cord/tubules and the mediastinum testis (TR) and from the intermediate area (parenchymal tissue origin) and CE (cauda epididymis origin). The whole or section-wise TTL treatments were given for 44 hr during in vitro maturation (IVM). Oocyte maturation was done in either of the two media, namely defined (high-performance basic medium for porcine oocyte maturation, commercially available) and serum containing (TCM199). After maturation, oocytes were co-incubated with fresh spermatozoa for 6 hr and then transferred to embryo culture media. Treatment of GV stage oocytes with wTTL (1 mg/ml) increased the cleavage and morula percentage rate (69.23 ± 6.23 and 48.15 ± 6.77, respectively) than that of their control (58.33 ± 8.08 and 32.54 ± 5.53, respectively) in defined media, and in serum-containing media, cleavage and morula percentage rate were almost equal in both treatment (54.56 ± 7.79 and 34.70 ± 6.78, respectively) and control (59.52 ± 8.21 and 38.52 ± 6.54, respectively). However, effect of wTTL was not significant. In case of section-wise TTL supplements, TR section significantly (p < .01) improved cleavage and morula rate (58.43 ± 7.98 and 36.14 ± 6.89, respectively) followed by TA. In conclusion, present study indicates that IVM, in vitro fertilization and in vitro culture of embryo are improved in the presence of TTL, particularly its TR section. Further study is expected to reveal the principal components of TTL which may prove useful for IVM.
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Affiliation(s)
- A K Singh
- ICAR-Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India.,Department of Biotechnology, Kumaun University, Nainital, Uttarakhand, India
| | - S Naskar
- ICAR-National Research Centre on Pig, Guwahati, Assam, India.,ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, Jharkhand, India
| | - B Saikia
- ICAR-National Research Centre on Pig, Guwahati, Assam, India
| | - Y Vashi
- ICAR-National Research Centre on Pig, Guwahati, Assam, India
| | - S Gupta
- ICAR-Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
| | - S Banik
- ICAR-National Research Centre on Pig, Guwahati, Assam, India
| | - M K Tamuli
- ICAR-National Research Centre on Pig, Guwahati, Assam, India
| | - V Pande
- Department of Biotechnology, Kumaun University, Nainital, Uttarakhand, India
| | - D K Sarma
- ICAR-National Research Centre on Pig, Guwahati, Assam, India
| | - S K Dhara
- ICAR-Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
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Basu S, Majumder S, Bhowal A, Ghosh A, Naskar S, Nandy S, Mukherjee S, Sinha RK, Basu K, Karmakar D, Banerjee S, Sengupta S. A study of molecular signals deregulating mismatch repair genes in prostate cancer compared to benign prostatic hyperplasia. PLoS One 2015; 10:e0125560. [PMID: 25938433 PMCID: PMC4418837 DOI: 10.1371/journal.pone.0125560] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 03/24/2015] [Indexed: 12/12/2022] Open
Abstract
Prostate cancer is one of the leading causes of mortality among aging males. There is an unmet requirement of clinically useful biomarkers for early detection of prostate cancer to reduce the liabilities of overtreatment and accompanying morbidity. The present population-based study investigates the factors disrupting expression of multiple functionally related genes of DNA mismatch repair pathway in prostate cancer patients to identify molecular attributes distinguishing adenocarcinoma from benign hyperplasia of prostate. Gene expression was compared between tissue samples from prostate cancer and benign prostatic hyperplasia using real-time-PCR, western blot and immunohistochemistry. Assessment of genotypes of seven single-nucleotide-polymorphisms of three MMR genes was conducted using PCR-coupled RFLP and sequencing. Promoter methylation was interrogated by methylation-specific-PCR and bisulfite-sequencing. Interaction between microRNAs and MMR genes was verified by 3'UTR-based dual luciferase assays. Concurrent reduction of three MMR genes namely hMLH1, hMSH6 and hMSH2 (34-85%, P<0.05) was observed in prostate cancer tissues. hMSH6 polymorphism rs1800932(Pro92Pro) conferred a borderline protection in cancer patients (OR = 0.33, 95% CI = 0.15-0.75). Relative transcript level of hMLH1 was inversely related (r = -0.59, P<0.05) with methylation quotient of its promoter which showed a significantly higher methylation density (P = 0.008, Z = -2.649) in cancer patients. hsa-miR-155, hsa-miR-141 and hsa-miR-21 gene expressions were significantly elevated (66-85%, P<0.05) in tumor specimens and negatively correlated (r = -0.602 to -0.527, P<0.05) with that of MMR genes. hsa-miR-155 & hsa-miR-141 and hsa-miR-155 & hsa-miR-21 were demonstrated to bind to their putative seed sequences in hMLH1 and hMSH6 3’UTRs respectively. Relatively higher expression of DNA methyl-transferases (DNMT1 and DNMT3b) and HIF-1α genes (34-50%, P<0.05) were also detected in tumor tissues. This study provides statistical evidence that MMR deficiency is correlated with hypermethylation of hMLH1 promoter and upregulation of hsa-miR-155, hsa-miR-141 and hsa-miR-21 in prostate cancer. This comparative study reflects that microRNA expression level, particularly hsa-miR-155, exhibits predictive signature of prostate adenocarcinoma.
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Affiliation(s)
- Sanmitra Basu
- Department of Biochemistry, University of Calcutta, Kolkata, West Bengal, India
| | - Subhadipa Majumder
- Department of Biochemistry, University of Calcutta, Kolkata, West Bengal, India
| | - Ankur Bhowal
- Department of Biochemistry, University of Calcutta, Kolkata, West Bengal, India
| | - Alip Ghosh
- Centre for Liver Research, Institute of Post-Graduate Medical Education & Research, Kolkata, West Bengal, India
| | - Sukla Naskar
- Department of Pathology, Calcutta National Medical College & Hospital, Kolkata, West Bengal, India
| | - Sumit Nandy
- Department of Pathology, Calcutta National Medical College & Hospital, Kolkata, West Bengal, India
| | - Subhabrata Mukherjee
- Department of Urology, Calcutta National Medical College & Hospital, Kolkata, West Bengal, India
| | - Rajan Kumar Sinha
- Department of Urology, Calcutta National Medical College & Hospital, Kolkata, West Bengal, India
| | - Keya Basu
- Department of Pathology, Calcutta National Medical College & Hospital, Kolkata, West Bengal, India
| | - Dilip Karmakar
- Department of Urology, Calcutta National Medical College & Hospital, Kolkata, West Bengal, India
| | - Soma Banerjee
- Centre for Liver Research, Institute of Post-Graduate Medical Education & Research, Kolkata, West Bengal, India
| | - Sanghamitra Sengupta
- Department of Biochemistry, University of Calcutta, Kolkata, West Bengal, India
- * E-mail:
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Paul A, Dangi S, Gupta M, Singh J, Thakur N, Naskar S, Nanda P, Mohanty N, Das A, Bandopadhayay S, Das B, Sarkar M. Expression of TLR genes in Black Bengal goat (Capra hircus) during different seasons. Small Rumin Res 2015. [DOI: 10.1016/j.smallrumres.2015.01.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Naskar S, Borah S, Vashi Y, Thomas R, Dhara S, Banik S. Evaluation of pig rearing farmers of North East India as prospective breeder: A retrospective analysis. INDIAN J ANIM RES 2015. [DOI: 10.5958/0976-0555.2015.00025.4] [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: 10/24/2022]
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Jana TK, Naskar S, Paul S, Sarkar B, Saha J. Handling machine breakdown for dynamic scheduling by a colony of cognitive agents in a holonic manufacturing framework. 10 5267/j dsl 2015. [DOI: 10.5267/j.dsl.2015.5.007] [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: 11/17/2022]
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Abstract
OBJECTIVE To minimize the false negativity in cervical cancer screening with Papanicolaou (Pap) test, there is a need to explore novel cytological technique and identification of unique and important cellular features from the perspectives of morphological as well as biophysical properties. MATERIALS AND METHODS The present study explores the feasibility of low-cost cervical monolayer techniques in extracting cyto-pathological features to classify normal and abnormal conditions. The cervical cells were also analyzed in respect to their electrical bioimpedance. RESULT The results show that newly developed monolayer technique for cervical smears is cost effective, capable of cyto-pathological evaluation. Electrical bioimpedance study evidenced distinction between abnormal and normal cell population at more than two order of magnitude difference. CONCLUSION The integration of bioimpedance observation along with the proposed low-cost monolayer technology could increase the efficiency of the cervical screening to a greater extent thereby reducing the rates of faulty diagnosis.
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Affiliation(s)
- Lopamudra Das
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, India
| | - Tandra Sarkar
- Department of Radiology, Apollo Gleanengles Hospital, Midnapore, India
| | - Ashok K. Maiti
- Department of Pathology, Midnapore Medical College and Hospital, Midnapore, India
| | - Sukla Naskar
- Department of Pathology, Calcutta National Medical College, Kolkata, West Bengal, India
| | - Soumen Das
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, India
| | - Jyotirmoy Chatterjee
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, India
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Naskar S, Kundu SK, Bhattacharyya NK, Bhattacharyya PK, Kundu AK. A study to correlate histopathology, biochemical marker and immunohistochemical expression of sex-steroid receptors in prostatic growth. Indian J Med Paediatr Oncol 2014; 35:40-3. [PMID: 25006283 PMCID: PMC4080662 DOI: 10.4103/0971-5851.133719] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Prostate gland is a fibromusculoglandular structure situated at the neck of urinary bladder. So, enlargement or growth of prostate due to nodular hyperplasia (NHP) or prostatic intraepithelial neoplasia (PIN) or adenocarcinoma may give rise to bladder outlet obstruction. Malignant growth i.e., PIN or adenocarcinoma cases are associated with increased blood level of prostate-specific antigen (PSA) and increased expression of different sex-steroid receptors because the growth is dependent on the interactions of androgen, progesterone and estrogen. The aim of our study is to correlate the histopathology, PSA levels and expression of different sex-steroid receptors by immunohistochemistry in different prostatic growth lesions. Among the total 50 cases received, inclusive of transurethral resection of prostate (TURP), transrectal ultrasound-guided biopsy and radical prostatectomy, 34 cases were diagnosed as NHP, 4 cases as PIN and 12 cases as adenocarcinoma histopathologically. Serum PSA values above 10 ng/ml were seen in 2 cases of PIN and 11 cases of adenocarcinoma and none of NHP. Estrogen receptor (ER) () expressions were negative in all cases. Progesterone receptor (PR) expressions were strongly positive in 35% cases of both NHP and adenocarcinoma, whereas androgen receptor (AR) expressions were strong among all cases of adenocarcinoma and only in four cases of NHP. By observing these findings it can be suggested that antiandrogen and antiprogesterone therapy simultaneously will do better than antiandrogen alone in treating prostatic growth lesions.
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Affiliation(s)
- Sukla Naskar
- Department Pathology, Calcutta National Medical College, Kolkata, West Bengal, India
| | - Soumya Kanti Kundu
- Consultant in Nuclear Medicine, R.N. Tagore Institute of Cardiac Sciences, Kolkata, West Bengal, India
| | | | | | - Anup Kumar Kundu
- Department of Urology, IPGMER and SSKM Hospital, Kolkata, West Bengal, India
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Nayak MK, Agrawal AS, Bose S, Naskar S, Bhowmick R, Chakrabarti S, Sarkar S, Chawla-Sarkar M. Antiviral activity of baicalin against influenza virus H1N1-pdm09 is due to modulation of NS1-mediated cellular innate immune responses. J Antimicrob Chemother 2014; 69:1298-310. [DOI: 10.1093/jac/dkt534] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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Chowdhury P, Hari R, Chakraborty B, Mandal B, Naskar S, Das N. Isolation, culture optimization and physico-chemical characterization of laccase enzyme from Pleurotus fossulatus. Pak J Biol Sci 2014; 17:173-181. [PMID: 24783799 DOI: 10.3923/pjbs.2014.173.181] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Pleurotus fossulatus (Cooke) Sace is member of oyster mushroom can produced extracellular laccase (benzenediol: oxygen oxidoreductase; EC 1.10.3.2) in submerged fermentation. To analyze the optimum production for laccase P. fossulatus was cultured both in stationary and shaking condition in different media. Partial purification of laccase was done after 0-80% ammonium sulphate precipitation, followed by DEAE (Diethylaminoethyl) Sephadex (A-50) anion exchange chromatography. Potato-sucrose peptone (PSP) medium and Potato-dextrose (PD) medium showed highest laccase production in shaking and stationary conditions, respectively. Though the time required for optimum laccase production in stationary condition was much more than the shaking condition but the amount of laccase was about 2.75t greater in former condition. The laccase produced in stationary condition was more stable than the enzyme produced in shaking condition. The partially purified enzyme showed highest affinity towards o-dianisidine than guaiacol and ABTS (2,2'-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) as evidenced by their K(m). The physico-chemical properties of the laccase suggested the significance of this enzyme in industrial applications.
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Borah S, Sarmah B, Chakravarty P, Naskar S, Dutta D, Kalita D. Effect of zinc supplementation on serum biochemicals in grower pig. Journal of Applied Animal Research 2013. [DOI: 10.1080/09712119.2013.824888] [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: 10/26/2022]
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Mitra A, Basak T, Datta K, Naskar S, Sengupta S, Sarkar S. Role of α-crystallin B as a regulatory switch in modulating cardiomyocyte apoptosis by mitochondria or endoplasmic reticulum during cardiac hypertrophy and myocardial infarction. Cell Death Dis 2013; 4:e582. [PMID: 23559016 PMCID: PMC3641337 DOI: 10.1038/cddis.2013.114] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Cardiac hypertrophy and myocardial infarction (MI) are two major causes of heart failure with different etiologies. However, the molecular mechanisms associated with these two diseases are not yet fully understood. So, this study was designed to decipher the process of cardiomyocyte apoptosis during cardiac hypertrophy and MI in vivo. Our study revealed that mitochondrial outer membrane channel protein voltage-dependent anion channel-1 (VDAC1) was upregulated exclusively during cardiac hypertrophy, whereas 78 kDa glucose-regulated protein (GRP78) was exclusively upregulated during MI, which is an important upstream regulator of the endoplasmic reticulum (ER) stress pathway. Further downstream analysis revealed that mitochondrial pathway of apoptosis is instrumental in case of hypertrophy, whereas ER stress-induced apoptosis is predominant during MI, which was confirmed by treatment with either siRNA against VDAC1 or ER stress inhibitor tauroursodeoxycholic acid (TUDCA). Very interestingly, our data also showed that the expression and interaction of small heat-shock protein α-crystallin B (CRYAB) with VDAC1 was much more pronounced during MI compared with either hypertrophy or control. The study demonstrated for the first time that two different organelles—mitochondria and ER have predominant roles in mediating cardiomyocyte death signaling during hypertrophy and MI, respectively, and activation of CRYAB acts as a molecular switch in bypassing mitochondrial pathway of apoptosis during MI.
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Affiliation(s)
- A Mitra
- Department of Zoology, University of Calcutta, 35, B.C. Road, Kolkata 700 019, India
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Das M, Laha R, Devi P, Bordoloi RK, Naskar S. Sarcoptic mange infestation in pigs in a hilly region of Meghalaya. Trop Anim Health Prod 2009; 42:1009-11. [PMID: 20041347 DOI: 10.1007/s11250-009-9523-4] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2009] [Indexed: 11/29/2022]
Abstract
Skin lesions were collected from 15 adult crossbred pigs maintained at the pig farm of ICAR Research Complex for the North-Eastern Hill Region, Umiam, a hilly region of the state of Meghalaya, India. Skin scrapings of these 15 animals were examined by KOH digestion method. Presence of mites were detected in five animals which were indistinguishable from Sarcoptes scabiei var. suis. Infected pigs were treated with a single dose of Ivermectin at 200 ug/kg body weight, subcutaneously. No mites were recovered from treated pigs after a period of 10 days of post-treatment. The presence of S. scabiei var. suis in pigs from this part of the country has never been reported. This infestation has great significance because it affects the growth rate and feed conversion significantly, specially to the grower and weaned pigs. It can be concluded that S. scabiei var. suis infestation is prevalent in hilly region of Meghalaya. The pig producers are generally unaware about the severity of the problem of mite infestation, so precaution should be taken to prevent their valuable pigs from S. scabiei var. suis infestation.
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Affiliation(s)
- M Das
- Division of Veterinary Parasitology, ICAR Research Complex for NEH Region, Umroi Road, Umiam, Meghalaya, 793 103, India
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Kumaresan A, Kadirvel G, Bujarbaruah K, Bardoloi R, Das A, Kumar S, Naskar S. Preservation of boar semen at 18°C induces lipid peroxidation and apoptosis like changes in spermatozoa. Anim Reprod Sci 2009; 110:162-71. [DOI: 10.1016/j.anireprosci.2008.01.006] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2007] [Revised: 01/10/2008] [Accepted: 01/13/2008] [Indexed: 11/30/2022]
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Hering J, Rottmann M, Hempel F, Naskar S, Angelkort B. Langzeitergebnisse nach primär erfolgreicher transluminaler percutaner Angioplastie (PTA) von Unterschenkelarterien beim diabetischen Fußsyndrom. DIABETOL STOFFWECHS 2006. [DOI: 10.1055/s-2006-943918] [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: 10/19/2022]
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Naskar S, Biswas S, Mishra D, Adhikary B, Falvello L, Soler T, Schwalbe C, Chattopadhyay S. Studies on the relative stabilities of Mn(II) and Mn(III) in complexes with N4O2 donor environments: crystal structures of [Mn(pybzhz)2] and [Mn(Ophsal)(imzH)2] ClO4 (pybzhz=N-(benzoyl)-N′-(picolinylidene) hydrazine, Ophsal=N,N′-o-phenylenebis(salicylideneimine), imzH=imidazole). Inorganica Chim Acta 2004. [DOI: 10.1016/j.ica.2004.06.018] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Naskar S, Nanda DK. Cytomorphology of the ring gland and its relation with the stomatogastric nervous system in adult fly, Chrysomyia megacephala (Diptera: Calliphoridae). CYTOLOGIA 1975; 40:277-84. [PMID: 1157524 DOI: 10.1508/cytologia.40.277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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