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Dasgupta S, Sanyal S, Sengupta SP. Transpectoral Anterior Approach to the Axilla for Lymph Node Dissection in Association with Mastectomy Preserving Both Pectoral Muscles and Their Neurovascular Bundles. TUMORI JOURNAL 2018; 85:498-502. [PMID: 10774573 DOI: 10.1177/030089169908500614] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In Patey's mastectomy, which is still the most common operation for breast cancer, axillary node dissection (AND) is performed through the base of the axilla after retracting the pectoralis major muscle and excising the pectoralis minor muscle (some surgeons preserve the latter). This has the disadvantage of inadequate exposure of the axilla and the risk of damage to the neurovascular bundles supplying the pectoral muscles, which in the long run may lead to atrophy of these muscles. A transpectoral anterior approach to the axilla for AND in association with mastectomy was attempted in 115 cases to obviate the above-mentioned disadvantages. The approach included: 1) splitting of the pectoralis major between the clavicular and sternal fibers; 2) mobilization and swinging of the pectoralis minor into different directions by means of a sling to facilitate AND at selected levels. The major advantages of this approach were: 1) total preservation of both pectoral muscles with their neurovascular bundles maintained the normal anatomy and function of the shoulder; 2) the axilla was directly approached through the anterior wall instead of through the base; in this way the axillary contents were exposed almost at surface level; 3) the dissection plane could be limited to anterior to and below the axillary vein and the risk of postoperative lymphedema could thus be minimized; 4) change of position of the ipsilateral arm was not necessary; 5) the duration of surgery was reduced. Monoblock ablation of significant and suspected tissues, maintaining the normal anatomy and function of the shoulder, could be easily accomplished with this approach.
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Alexeev M, Birsa R, Bradamante F, Bressan A, Chiosso M, Ciliberti P, Dalla Torre S, Dasgupta S, Denisov O, Finger M, Finger M, Fishcher H, Gobbo B, Gregori M, Hamar G, Herrmann F, Königsmann K, Levorato S, Maggiora A, Makke N, Martin A, Menon G, Novy J, Panzieri D, Pereira FA, Santos CA, Sbrizzai G, Schiavon P, Schopferer S, Slunechka M, Steiger K, Steiger L, Sulc M, Tessarotto F, Veloso JFCA. Status of COMPASS RICH-1 Upgrade with MPGD-based Photon Detectors. EPJ WEB OF CONFERENCES 2018. [DOI: 10.1051/epjconf/201817401004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A Set of new MPGD-based Photon Detectors is being built for the upgrade of COMPASS RICH-1. The detectors cover a total active area of 1.4 m2 and are based on a hybrid architecture consisting of two THGEM layers and a Micromegas. A CsI film on one THGEM acts as a reflective photocathode. The characteristics of the detector, the production of the components and their validation tests are described in detail.
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Banerjee T, Das A, Ghosh E, Saha M, Dasgupta S, Chowdhury D, Ojha S, Nandi S, Haldar A, Datta A, Purakayastha S. Clinical profile and outcome of optic neuritis in the City of Kolkata, India. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Dasgupta S, Auth T, Gompper G. Nano- and microparticles at fluid and biological interfaces. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2017; 29:373003. [PMID: 28608781 PMCID: PMC7104866 DOI: 10.1088/1361-648x/aa7933] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 04/12/2017] [Accepted: 06/13/2017] [Indexed: 05/05/2023]
Abstract
Systems with interfaces are abundant in both technological applications and biology. While a fluid interface separates two fluids, membranes separate the inside of vesicles from the outside, the interior of biological cells from the environment, and compartmentalize cells into organelles. The physical properties of interfaces are characterized by interface tension, those of membranes are characterized by bending and stretching elasticity. Amphiphilic molecules like surfactants that are added to a system with two immiscible fluids decrease the interface tension and induce a bending rigidity. Lipid bilayer membranes of vesicles can be stretched or compressed by osmotic pressure; in biological cells, also the presence of a cytoskeleton can induce membrane tension. If the thickness of the interface or the membrane is small compared with its lateral extension, both can be described using two-dimensional mathematical surfaces embedded in three-dimensional space. We review recent work on the interaction of particles with interfaces and membranes. This can be micrometer-sized particles at interfaces that stabilise emulsions or form colloidosomes, as well as typically nanometer-sized particles at membranes, such as viruses, parasites, and engineered drug delivery systems. In both cases, we first discuss the interaction of single particles with interfaces and membranes, e.g. particles in external fields, non-spherical particles, and particles at curved interfaces, followed by interface-mediated interaction between two particles, many-particle interactions, interface and membrane curvature-induced phenomena, and applications.
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Aghasyan M, Akhunzyanov R, Alexeev GD, Alexeev MG, Amoroso A, Andrieux V, Anfimov NV, Anosov V, Antoshkin A, Augsten K, Augustyniak W, Austregesilo A, Azevedo CDR, Badełek B, Balestra F, Ball M, Barth J, Beck R, Bedfer Y, Bernhard J, Bicker K, Bielert ER, Birsa R, Bodlak M, Bordalo P, Bradamante F, Bressan A, Büchele M, Chang WC, Chatterjee C, Chiosso M, Choi I, Chung SU, Cicuttin A, Crespo ML, Dalla Torre S, Dasgupta SS, Dasgupta S, Denisov OY, Dhara L, Donskov SV, Doshita N, Dreisbach C, Dünnweber W, Dziewiecki M, Efremov A, Eversheim PD, Faessler M, Ferrero A, Finger M, Finger M, Fischer H, Franco C, du Fresne von Hohenesche N, Friedrich JM, Frolov V, Fuchey E, Gautheron F, Gavrichtchouk OP, Gerassimov S, Giarra J, Giordano F, Gnesi I, Gorzellik M, Grasso A, Grosse Perdekamp M, Grube B, Grussenmeyer T, Guskov A, Hahne D, Hamar G, von Harrach D, Heinsius FH, Heitz R, Herrmann F, Horikawa N, d'Hose N, Hsieh CY, Huber S, Ishimoto S, Ivanov A, Ivanshin Y, Iwata T, Jary V, Joosten R, Jörg P, Kabuß E, Kerbizi A, Ketzer B, Khaustov GV, Khokhlov YA, Kisselev Y, Klein F, Koivuniemi JH, Kolosov VN, Kondo K, Königsmann K, Konorov I, Konstantinov VF, Kotzinian AM, Kouznetsov OM, Kral Z, Krämer M, Kremser P, Krinner F, Kroumchtein ZV, Kulinich Y, Kunne F, Kurek K, Kurjata RP, Kveton A, Lednev AA, Levillain M, Levorato S, Lian YS, Lichtenstadt J, Longo R, Maggiora A, Magnon A, Makins N, Makke N, Mallot GK, Marianski B, Martin A, Marzec J, Matoušek J, Matsuda H, Matsuda T, Meshcheryakov GV, Meyer M, Meyer W, Mikhailov YV, Mikhasenko M, Mitrofanov E, Mitrofanov N, Miyachi Y, Nagaytsev A, Nerling F, Neyret D, Nový J, Nowak WD, Nukazuka G, Nunes AS, Olshevsky AG, Orlov I, Ostrick M, Panzieri D, Parsamyan B, Paul S, Peng JC, Pereira F, Pešek M, Peshekhonov DV, Pierre N, Platchkov S, Pochodzalla J, Polyakov VA, Pretz J, Quaresma M, Quintans C, Ramos S, Regali C, Reicherz G, Riedl C, Rogacheva NS, Roskot M, Ryabchikov DI, Rybnikov A, Rychter A, Salac R, Samoylenko VD, Sandacz A, Santos C, Sarkar S, Savin IA, Sawada T, Sbrizzai G, Schiavon P, Schmidt K, Schmieden H, Schönning K, Seder E, Selyunin A, Shevchenko OY, Silva L, Sinha L, Sirtl S, Slunecka M, Smolik J, Srnka A, Steffen D, Stolarski M, Subrt O, Sulc M, Suzuki H, Szabelski A, Szameitat T, Sznajder P, Takewaka S, Tasevsky M, Tessaro S, Terça G, Tessarotto F, Thiel A, Tomsa J, Tosello F, Tskhay V, Uhl S, Vauth A, Veloso J, Virius M, Vit M, Vondra J, Wallner S, Weisrock T, Wilfert M, Ter Wolbeek J, Zaremba K, Zavada P, Zavertyaev M, Zemlyanichkina E, Zhuravlev N, Ziembicki M. First Measurement of Transverse-Spin-Dependent Azimuthal Asymmetries in the Drell-Yan Process. PHYSICAL REVIEW LETTERS 2017; 119:112002. [PMID: 28949229 DOI: 10.1103/physrevlett.119.112002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Indexed: 06/07/2023]
Abstract
The first measurement of transverse-spin-dependent azimuthal asymmetries in the pion-induced Drell-Yan (DY) process is reported. We use the CERN SPS 190 GeV/c π^{-} beam and a transversely polarized ammonia target. Three azimuthal asymmetries giving access to different transverse-momentum-dependent (TMD) parton distribution functions (PDFs) are extracted using dimuon events with invariant mass between 4.3 GeV/c^{2} and 8.5 GeV/c^{2}. Within the experimental uncertainties, the observed sign of the Sivers asymmetry is found to be consistent with the fundamental prediction of quantum chromodynamics (QCD) that the Sivers TMD PDFs extracted from DY have a sign opposite to the one extracted from semi-inclusive deep-inelastic scattering (SIDIS) data. We present two other asymmetries originating from the pion Boer-Mulders TMD PDFs convoluted with either the nucleon transversity or pretzelosity TMD PDFs. A recent COMPASS SIDIS measurement was obtained at a hard scale comparable to that of these DY results. This opens the way for possible tests of fundamental QCD universality predictions.
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Kannan A, Wells RM, Ikebe M, Dasgupta S. Abstract P6-01-15: Novel regulation of breast cancer cell aggressiveness by cancer testis antigen. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p6-01-15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
We recently demonstrated that a vesicular endocytosis associated protein SH3GL2, attenuates spontaneous metastases of breast cancer cells by inducing a mesenchymal to epithelial differentiation and the onset of the intrinsic apoptotic pathway. The present study aims to understand the molecular mechanism behind the SH3Gl2 mediated reduction of spontaneous metastasis of the breast cancer cells.
We employed a cDNA microarray analysis of the SH3GL2-overexpressing breast cancer cells exhibiting reduced pulmonary metastasis and identified a 12.1 fold downregulation of SPANXB1, a cancer-testis antigen that regulates sperm motility. A limited number of studies reported an association between increased SPANXB1 expression and progression of melanoma and hepatocellular carcinoma. Augmented SPANXB1 mRNA and protein expression was evident in primary breast tumors and its upregulation was associated with pulmonary metastasis of breast cancer cells. However, the expression pattern of SPANXB1 and its role in BCa development and progression is unknown. By immunohistochemical analysis, we detected high expression (p=0.002) of SPANXB1 in 78% (18/23) of the primary breast cancer tissues and corresponding lymph node metastases compared to the matched normal breast tissues. A couple of non-tumorigenic human breast epithelial cell lines were stably transformed with SPANXB1 to understand its effect on cellular growth and progression. The SPANXB1-transformed cells exhibited increased invasion (p=0.0001) and epithelial to mesenchymal transition accompanied by an augmented expression ratio of Vimentin/E-Cadherin, molecules regulating differentiation and metastasis. The SPANXB1-transformed cells also exhibited a markedly reduced expression of SH3GL2, implicating a SPANXB1:SH3GL2 crosstalk accompanied by an enhanced production of lactate (p=0.004). Our investigation identifies new breast cancer promoting role of a cancer testis antigen, which bears potential for biomarker and targeted therapeutic development.
Citation Format: Kannan A, Wells RM, Ikebe M, Dasgupta S. Novel regulation of breast cancer cell aggressiveness by cancer testis antigen [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 P6-01-15.
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Singh S, Kumar S, Dasgupta S, Kenwar DB, Rathi M, Sharma A, Kohli HS, Jha V, Gupta KL, Minz M. A Single-center Experience of Kidney Transplantation from Donation after Circulatory Death: Challenges and Scope in India. Indian J Nephrol 2017; 27:205-209. [PMID: 28553041 PMCID: PMC5434687 DOI: 10.4103/0971-4065.202843] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Donation after circulatory death (DCD) has never been attempted in India because of legal constraints and lack of guidelines for the withdrawal of life support in end-of-life situations. The present report describes the initial experience of transplantation of organs from DCD donors in a tertiary care center in India. Between 2011 and 2015, five donors had kidneys retrieved after cardiac arrest. These patients were declared dead after waiting for 5 min with no electrocardiographic signal on monitor following cardiopulmonary resuscitation (CPR), which was restarted in three patients till organ retrieval. All donors received heparin and underwent rapid cannulation of aorta, infusion of preservative cold solution, and immediate surface cooling of organs during retrieval surgery. 9/10 kidneys were utilized. Mean donor age was 29.6 ± 16.3 years, M:F 4:1 and mean age of recipients was 38.7 ± 10.8 years, M:F 7:2. Seven patients required dialysis in postoperative period. Mean postoperative day 0 urine output was 1.9 ± 2.6 L. Baseline creatinine achieved was 1.38 ± 0.35 mg/dl after a mean duration of 26.12 ± 15.4 days. Kidneys from donors where CPR was continued after the declaration of death (n = 3) had better recovery of renal function (time to reach baseline creatinine 21.2 ± 7.2 vs. 34.3 ± 23.7 days, baseline creatinine 1.36 ± 0.25 vs. 1.52 ± 0.45 mg%). In donors without CPR, one kidney never functioned and others had patchy cortical necrosis on protocol biopsy, which was not seen in the kidneys from donors with CPR. Kidneys from DCD donors can serve as a useful adjunct in deceased donor program. Continuing CPR after the declaration of death seems to help in improving outcomes.
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Marwah V, Dasgupta S, Mittal P. Total Laparoscopic Hysterectomy with Left Salpingoophorectomy Using Sutures without the Use of Any Energy Source. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Marwah V, Dasgupta S, Mittal P. Total Laparoscopic Hysterectomy with Bilateral Salpingoophorectomy with Sutures Using Posterior Approach for Uterine Artery Ligation. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Marwah V, Dasgupta S, Mittal P. Total Laparoscopic Hysterectomy with Endosutures Only. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Jain AK, Dasgupta S, Bhargava ON, Israil M, Jayangonda Perumal R, Patel RC, Mukul M, Parcha SK, Adlakha V, Agarwal KK, Singh P, Bhattacharyya K, Pant NC, Banerjee DM. Tectonics and Evolution of the Himalaya. PROCEEDINGS OF THE INDIAN NATIONAL SCIENCE ACADEMY 2016. [DOI: 10.16943/ptinsa/2016/48469] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Datta J, Dasgupta S, Verma R, Chowdhury DP, Sugathan B, Nilaya JP, Biswas DJ. Application of thin layer activation technique to study surface erosion of D9 stainless steel during laser ablation process. J Radioanal Nucl Chem 2016. [DOI: 10.1007/s10967-015-4604-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sauter ER, Qin W, Dasgupta S. Abstract P1-04-01: Breast milk exosomes promote breast cancer progression. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p1-04-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: The stimulation of extant neoplastic cells vs. their inhibition during breast involution is a key concept in whether pregnancy and lactation decrease or increase breast cancer risk. The time of weaning, a period of breast involution and remodeling, appears critical to future breast cancer risk, as during involution the breast microenvironment becomes tumor promotional. Both matrix metalloproteinases (MMPs) and transforming growth factor (TGF)β isoforms have been implicated in this process. We previously reported that TGFβ2 (but not TGFβ1) expression was significantly higher in milk collected from the cancer containing (vs. matched clinically normal) breast of women diagnosed with cancer during lactation.
Hypothesis: TGFβ2 in milk exosomes from healthy lactating women modulates the development and progression of breast cancer.
Methods: Matched (early, mature and wean-early involution) milk samples were collected from 13 lactating women, exosomes isolated and the levels of five (MMP2, 3, 9; TGFβ1, 2) proteins measured. Based on the results, additional wean samples were analyzed for TGFβ2 expression and samples divided based on their TGFβ2 expression. The highest and lowest TGFβ2 expressing milk exosome samples were co-cultured with MCF-7 breast cancer cells grown in exosome-depleted media. Cell proliferation was measured after 24h. Confocal microscopy was performed after 72h to evaluate epithelial to mesenchymal transition (EMT) in the cells. A TGFβ2 neutralizing blocking antibody was applied after 72 h co-culture.
Results: The greatest increase in expression (four-fold) at the time of involution was in TGFβ2. Confocal microscopy performed 24h after co-culture confirmed the uptake of the exosomes (both those expressing hi and lo TGFβ2) in the MCF-7 cells. There was a significant increase in cell proliferation compared to control (p<0.001) in cells treated with hi TGFβ2 milk exosomes. 72h after co-culture, bright field microscopy demonstrated that MCF-7 cells treated with hi TGFβ2 underwent EMT including the formation of filopodia, whereas those treated with low TGFβ2 did not. A TGFβ2 blocking antibody reversed the EMT phenotype and filopodia formation.
Impact: Pregnancy has a lasting influence on breast cancer risk, and pregnancy associated breast cancers (PABCs) diagnosed after delivery are generally aggressive, with a poor prognosis. Part of the reason for the development of PABCs, and the aggressive nature of PABCs may be the influence of high-expressing TGFβ2 exosomes in the milk on the breast ductal epithelium.
Citation Format: Sauter ER, Qin W, Dasgupta S. Breast milk exosomes promote breast cancer progression. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P1-04-01.
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Dasgupta S, Vats V, Mittal KS. Orbital foreign body- Study of a case series. Nepal J Ophthalmol 2015; 7:60-4. [PMID: 26695608 DOI: 10.3126/nepjoph.v7i1.13172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Orbital foreign bodies (OFBs) may remain in the orbital cavity for considerable time and manifest with secondary complications. OBJECTIVE To report five consecutive cases of orbital trauma with OFBs, who presented at our institute from Jan 2010 to Dec 2013. CASES The first case of our series with a non-specific history of injury had a chronic granulomatous discharging sinus in the left upper eyelid and an intact globe. The second case, with an injury to the left lower eyelid following an assault, presented late and the manifestations were similar to that of the first case. The third case, of a road traffic accident, had sustained multiple facial and periocular injuries. The nature of all of three OFBs was uncertain by CT- scan, till surgical exploration. The fourth case had sustained injury to his left eye by a flying metal object. X-ray was sufficient to detect the OFB, but as scleral penetration was associated, management was complex. The fifth case had a nonspecific history of injury and the manifestation was similar to that of the first case. The surgical exploration revealed multiple OFB (wood). CONCLUSION The OFBs pose difficult diagnostic and therapeutic challenges. Management of such cases, at times, calls for innovation in decision making and formulation of strategies.
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Mukhopadhyay S, Dasgupta S, Mitra P, Bose C, Gharami F, Mukhopadhyay A. 310P Correlation of different mutations with drug resistance in chronic myeloid leukemia in Indian perspective. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv526.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Datta J, Dasgupta S, Guin R, Venkatesh M, Suvarna S, Chowdhury DP. Determination of total arsenic and speciation of As(III) and As(V) in ground water by charged particle activation analysis. J Radioanal Nucl Chem 2015. [DOI: 10.1007/s10967-015-4571-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Adolph C, Akhunzyanov R, Alexeev MG, Alexeev GD, Amoroso A, Andrieux V, Anosov V, Austregesilo A, Azevedo C, Badełek B, Balestra F, Barth J, Beck R, Bedfer Y, Bernhard J, Bicker K, Bielert ER, Birsa R, Bisplinghoff J, Bodlak M, Boer M, Bordalo P, Bradamante F, Braun C, Bressan A, Büchele M, Burtin E, Chang WC, Chiosso M, Choi I, Chung SU, Cicuttin A, Crespo ML, Curiel Q, Dalla Torre S, Dasgupta SS, Dasgupta S, Denisov OY, Dhara L, Donskov SV, Doshita N, Dünnweber W, Duic V, Dziewiecki M, Efremov A, Eversheim PD, Eyrich W, Faessler M, Ferrero A, Finger M, Finger M, Fischer H, Franco C, du Fresne von Hohenesche N, Friedrich JM, Frolov V, Gautheron F, Gavrichtchouk OP, Gerassimov S, Gnesi I, Gorzellik M, Grabmüller S, Grasso A, Grosse-Perdekamp M, Grube B, Grussenmeyer T, Guskov A, Haas F, Hahne D, von Harrach D, Hashimoto R, Heinsius FH, Herrmann F, Hinterberger F, Horikawa N, d'Hose N, Hsieh CY, Huber S, Ishimoto S, Ivanov A, Ivanshin Y, Iwata T, Jahn R, Jary V, Jörg P, Joosten R, Kabuß E, Ketzer B, Khaustov GV, Khokhlov YA, Kisselev Y, Klein F, Klimaszewski K, Koivuniemi JH, Kolosov VN, Kondo K, Königsmann K, Konorov I, Konstantinov VF, Kotzinian AM, Kouznetsov O, Krämer M, Kremser P, Krinner F, Kroumchtein ZV, Kuchinski N, Kunne F, Kurek K, Kurjata RP, Lednev AA, Lehmann A, Levillain M, Levorato S, Lichtenstadt J, Maggiora A, Magnon A, Makins N, Makke N, Mallot GK, Marchand C, Martin A, Marzec J, Matousek J, Matsuda H, Matsuda T, Meshcheryakov G, Meyer W, Michigami T, Mikhailov YV, Miyachi Y, Nagaytsev A, Nagel T, Nerling F, Neyret D, Nikolaenko VI, Novy J, Nowak WD, Nunes AS, Olshevsky AG, Orlov I, Ostrick M, Panzieri D, Parsamyan B, Paul S, Peng JC, Pereira F, Pesek M, Peshekhonov DV, Platchkov S, Pochodzalla J, Polyakov VA, Pretz J, Quaresma M, Quintans C, Ramos S, Regali C, Reicherz G, Riedl C, Rocco E, Rossiyskaya NS, Ryabchikov DI, Rychter A, Samoylenko VD, Sandacz A, Santos C, Sarkar S, Savin IA, Sbrizzai G, Schiavon P, Schmeing S, Schmidt K, Schmieden H, Schönning K, Schopferer S, Schlüter T, Selyunin A, Shevchenko OY, Silva L, Sinha L, Sirtl S, Slunecka M, Sozzi F, Srnka A, Stolarski M, Sulc M, Suzuki H, Szabelski A, Szameitat T, Sznajder P, Takekawa S, Ter Wolbeek J, Tessaro S, Tessarotto F, Thibaud F, Tskhay V, Uhl S, Veloso J, Virius M, Wallner S, Weisrock T, Wilfert M, Zaremba K, Zavertyaev M, Zemlyanichkina E, Ziembicki M, Zink A. Observation of a New Narrow Axial-Vector Meson a1(1420). PHYSICAL REVIEW LETTERS 2015; 115:082001. [PMID: 26340182 DOI: 10.1103/physrevlett.115.082001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Indexed: 06/05/2023]
Abstract
The COMPASS Collaboration at CERN has measured diffractive dissociation of 190 GeV/c pions into the π(-)π(-)π(+) final state using a stationary hydrogen target. A partial-wave analysis (PWA) was performed in bins of 3π mass and four-momentum transfer using the isobar model and the so far largest PWA model consisting of 88 waves. A narrow peak is observed in the f0(980)π channel with spin, parity and C-parity quantum numbers J(PC)=1(++). We present a resonance-model study of a subset of the spin-density matrix selecting 3π states with J(PC)=2(++) and 4(++) decaying into ρ(770)π and with J(PC)=1(++) decaying into f0(980)π. We identify a new a1 meson with mass (1414(-13)(+15)) MeV/c2 and width (153(-23)(+8)) MeV/c2. Within the final states investigated in our analysis, we observe the new a1(1420) decaying only into f0(980)π, suggesting its exotic nature.
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Nagdeo N, Sonarkar R, Thombare VR, Akhtar M, Dasgupta S. Effects of an Educational Module in Rationalizing Surgical Prophylaxis. Indian J Surg 2015; 77:290-6. [PMID: 26702236 PMCID: PMC4688270 DOI: 10.1007/s12262-015-1297-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 05/26/2015] [Indexed: 11/24/2022] Open
Abstract
Assessment of current antibiotic prescribing patterns is an important step towards appropriate use of antimicrobial agents. This study was planned to know the surgical prophylaxis practices and the influence of educational intervention. In this educational interventional study, only clean and clean-contaminated surgeries were included. Preinterventional study was done by collecting data regarding the use of surgical prophylaxis in the Department of Surgery. After analyzing the preinterventional data, educational intervention was done. A pretest questionnaire was given to all the surgeons to assess knowledge and practice of surgical prophylaxis in our institute. The questionnaire was designed to collect information regarding the use of prophylactic antibiotic, its duration, time of administration, and prevention of surgical site infections (SSI). In our study, third-generation cephalosporin was used in maximum cases in preinterventional analysis and prophylaxis was continued for 3-5 days. Surgeon's decision in selecting a prophylactic agent was based on information taken from departmental colleagues or drug companies. Two or more doses of antibiotic were used even when duration of surgery did not exceed more than two and half hours. Definite improvement was seen after the education where single antibiotic was used as prophylactic drug and the first dose of antibiotic was administered 30 to 60 min before incision. This shows that educational intervention makes a change in antibiotic prescribing habit. Hence, there is an urgent need for adoption of specific guidelines to ensure standardization of surgical antibiotic prophylaxis practices in hospitals.
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Adolph C, Akhunzyanov R, Alexeev MG, Alexeev GD, Amoroso A, Andrieux V, Anosov V, Austregesilo A, Badełek B, Balestra F, Barth J, Baum G, Beck R, Bedfer Y, Berlin A, Bernhard J, Bicker K, Bieling J, Birsa R, Bisplinghoff J, Bodlak M, Boer M, Bordalo P, Bradamante F, Braun C, Bressan A, Büchele M, Burtin E, Capozza L, Chiosso M, Chung SU, Cicuttin A, Colantoni M, Crespo ML, Curiel Q, Dalla Torre S, Dasgupta SS, Dasgupta S, Denisov OY, Dinkelbach AM, Donskov SV, Doshita N, Duic V, Dünnweber W, Dziewiecki M, Efremov A, Elia C, Eversheim PD, Eyrich W, Faessler M, Ferrero A, Filin A, Finger M, Finger M, Fischer H, Franco C, du Fresne von Hohenesche N, Friedrich JM, Frolov V, Gautheron F, Gavrichtchouk OP, Gerassimov S, Geyer R, Gnesi I, Gobbo B, Goertz S, Gorzellik M, Grabmüller S, Grasso A, Grube B, Grussenmeyer T, Guskov A, Guthörl T, Haas F, von Harrach D, Hahne D, Hashimoto R, Heinsius FH, Herrmann F, Hinterberger F, Höppner C, Horikawa N, d'Hose N, Huber S, Ishimoto S, Ivanov A, Ivanshin Y, Iwata T, Jahn R, Jary V, Jasinski P, Jörg P, Joosten R, Kabuss E, Ketzer B, Khaustov GV, Khokhlov YA, Kisselev Y, Klein F, Klimaszewski K, Koivuniemi JH, Kolosov VN, Kondo K, Königsmann K, Konorov I, Konstantinov VF, Kotzinian AM, Kouznetsov O, Krämer M, Kroumchtein ZV, Kuchinski N, Kuhn R, Kunne F, Kurek K, Kurjata RP, Lednev AA, Lehmann A, Levillain M, Levorato S, Lichtenstadt J, Maggiora A, Magnon A, Makke N, Mallot GK, Marchand C, Martin A, Marzec J, Matousek J, Matsuda H, Matsuda T, Meshcheryakov G, Meyer W, Michigami T, Mikhailov YV, Miyachi Y, Moinester MA, Nagaytsev A, Nagel T, Nerling F, Neubert S, Neyret D, Nikolaenko VI, Novy J, Nowak WD, Nunes AS, Olshevsky AG, Orlov I, Ostrick M, Panknin R, Panzieri D, Parsamyan B, Paul S, Peshekhonov D, Platchkov S, Pochodzalla J, Polyakov VA, Pretz J, Quaresma M, Quintans C, Ramos S, Regali C, Reicherz G, Rocco E, Rossiyskaya NS, Ryabchikov DI, Rychter A, Samoylenko VD, Sandacz A, Sarkar S, Savin IA, Sbrizzai G, Schiavon P, Schill C, Schlüter T, Schmidt K, Schmieden H, Schönning K, Schopferer S, Schott M, Shevchenko OY, Silva L, Sinha L, Sirtl S, Slunecka M, Sosio S, Sozzi F, Srnka A, Steiger L, Stolarski M, Sulc M, Sulej R, Suzuki H, Szabelski A, Szameitat T, Sznajder P, Takekawa S, ter Wolbeek J, Tessaro S, Tessarotto F, Thibaud F, Uhl S, Uman I, Virius M, Wang L, Weisrock T, Wilfert M, Windmolders R, Wollny H, Zaremba K, Zavertyaev M, Zemlyanichkina E, Ziembicki M, Zink A. Measurement of the charged-pion polarizability. PHYSICAL REVIEW LETTERS 2015; 114:062002. [PMID: 25723208 DOI: 10.1103/physrevlett.114.062002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Indexed: 06/04/2023]
Abstract
The COMPASS collaboration at CERN has investigated pion Compton scattering, π(-)γ→π(-)γ, at center-of-mass energy below 3.5 pion masses. The process is embedded in the reaction π(-)Ni→π(-)γNi, which is initiated by 190 GeV pions impinging on a nickel target. The exchange of quasireal photons is selected by isolating the sharp Coulomb peak observed at smallest momentum transfers, Q(2)<0.0015 (GeV/c)(2). From a sample of 63,000 events, the pion electric polarizability is determined to be α(π)=(2.0±0.6(stat)±0.7(syst))×10(-4) fm(3) under the assumption α(π)=-β(π), which relates the electric and magnetic dipole polarizabilities. It is the most precise measurement of this fundamental low-energy parameter of strong interaction that has been addressed since long by various methods with conflicting outcomes. While this result is in tension with previous dedicated measurements, it is found in agreement with the expectation from chiral perturbation theory. An additional measurement replacing pions by muons, for which the cross-section behavior is unambiguously known, was performed for an independent estimate of the systematic uncertainty.
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Dasgupta S, Divekar S, Arya A, Gupta P, Chauhan R, Bhadauria S, Hanif A, Garg MO, Nanoti A. A vapor phase adsorptive desulfurization process for producing ultra low sulphur diesel using NiY zeolite as a regenerable adsorbent. RSC Adv 2015. [DOI: 10.1039/c5ra05664k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A NiY zeolite based vapor phase adsorptive desulfurization process has been described which can bring down sulphur concentration of a commercial BS IV grade (Euro IV equivalent) diesel from 50 ppm to a <5 ppm level.
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Choudhry S, Baskin LS, Lammer EJ, Witte JS, Dasgupta S, Ma C, Surampalli A, Shen J, Shaw GM, Carmichael SL. Genetic polymorphisms in ESR1 and ESR2 genes, and risk of hypospadias in a multiethnic study population. J Urol 2014; 193:1625-31. [PMID: 25463985 DOI: 10.1016/j.juro.2014.11.087] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2014] [Indexed: 11/19/2022]
Abstract
PURPOSE Estrogenic endocrine disruptors acting via estrogen receptors α (ESR1) and β (ESR2) have been implicated in the etiology of hypospadias, a common congenital malformation of the male external genitalia. We determined the association of single nucleotide polymorphisms in ESR1 and ESR2 genes with hypospadias in a racially/ethnically diverse study population of California births. MATERIALS AND METHODS We investigated the relationship between hypospadias and 108 ESR1 and 36 ESR2 single nucleotide polymorphisms in 647 cases and 877 population based nonmalformed controls among infants born in selected California counties from 1990 to 2003. Subgroup analyses were performed by race/ethnicity (nonHispanic white and Hispanic subjects) and by hypospadias severity (mild to moderate and severe). RESULTS Odds ratios for 33 of the 108 ESR1 single nucleotide polymorphisms had p values less than 0.05 (p = 0.05 to 0.007) for risk of hypospadias. However, none of the 36 ESR2 single nucleotide polymorphisms was significantly associated. In stratified analyses the association results were consistent by disease severity but different sets of single nucleotide polymorphisms were significantly associated with hypospadias in nonHispanic white and Hispanic subjects. Due to high linkage disequilibrium across the single nucleotide polymorphisms, haplotype analyses were conducted and identified 6 haplotype blocks in ESR1 gene that had haplotypes significantly associated with an increased risk of hypospadias (OR 1.3 to 1.8, p = 0.04 to 0.00001). Similar to single nucleotide polymorphism analysis, different ESR1 haplotypes were associated with risk of hypospadias in nonHispanic white and Hispanic subjects. No significant haplotype association was observed for ESR2. CONCLUSIONS The data provide evidence that ESR1 single nucleotide polymorphisms and haplotypes influence the risk of hypospadias in white and Hispanic subjects, and warrant further examination in other study populations.
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Marwah V, Dasgupta S, Mittal P. Paradigm Shift in Technique of Total Laparoscopic Hysterectomy – Marwah’s Technique. J Minim Invasive Gynecol 2014. [DOI: 10.1016/j.jmig.2014.08.560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Marwah V, Dasgupta S, Mittal P. A Paradigm Shift in Total Laparoscopic Hysterectomy. J Minim Invasive Gynecol 2014. [DOI: 10.1016/j.jmig.2014.08.376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Jana AK, Sircar D, Waikhom R, Praharaj SK, Pandey R, RayChaudhury A, Dasgupta S. Depression and anxiety as potential correlates of post-transplantation renal function and quality of life. Indian J Nephrol 2014; 24:286-90. [PMID: 25249717 PMCID: PMC4165052 DOI: 10.4103/0971-4065.132996] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
The objective of this study was to determine anxiety and depression and its relationship with quality of life (QOL) in renal transplant (RT) recipients. A total of 105 consecutive patients were assessed cross-sectionally at least 3 months after RT. Hospital Anxiety and Depression Scale was applied to assess anxiety and depression. QOL was assessed through the abbreviated version of World Health Organization QOL scale. Patients’ awareness of illness and treatment was assessed through Structured Interview for Renal Transplantation. Nine (8.57%) patients had syndromal anxiety and 9 (8.57%) had syndromal depression. Both these groups had significantly lower scores in almost all domains of QOL compared with their non-anxious and non-depressed counterparts. There were a higher number of hospitalizations and episodes of complication or rejection in post-RT patients with anxiety as compared to those without (P = 0.001). Syndromal depression and anxiety are associated with poor QOL and syndromal anxiety is associated with significantly higher number of hospitalizations, rejections and complications in post-RT patients.
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Pushpa K, Gireesh-Babu P, Rajendran KV, Purushothaman CS, Dasgupta S, Makesh M. Molecular cloning, sequencing and tissue-level expression of complement C3 of Labeo rohita (Hamilton, 1822). FISH & SHELLFISH IMMUNOLOGY 2014; 40:319-330. [PMID: 25038278 DOI: 10.1016/j.fsi.2014.07.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2014] [Revised: 07/08/2014] [Accepted: 07/08/2014] [Indexed: 06/03/2023]
Abstract
Complement component C3 plays a central role in all known complement activation pathways. In the present study, we cloned, sequenced and analyzed the full-length cDNA sequence of Labeo rohita complement C3 (LRC3). The expression pattern of complement C3 mRNA in different tissues of healthy rohu and after challenge with Aeromonas hydrophila were evaluated using real-time PCR. The LRC3 cDNA sequence of rohu comprised of 5081 bp encoding a predicted protein of 1645 amino acids. The deduced amino acid sequence had the characteristic domain architecture. About eight domains specific to complement C3 are present in the sequence starting from signal peptide to netrin C345C (NTR) domain. The post-translational processing signal sequence (RKRR), the C3-convertase cleavage site sequence (LAR) and the canonical thiol-ester motif (GCGEQ) were found to be conserved in the LRC3. Real-time PCR analysis revealed the highest expression of C3 in liver and extra-hepatic expression of C3 was also observed in all the tissues studied. A. hydrophila challenge resulted in significant up-regulated expression of C3 transcripts in both liver and kidney at 6, 12, 24, 48 and 72 h post-infection.
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