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Mukherjee P, Kundu S, Ganguly R, Barui A, RoyChaudhuri C. Deformed graphene FET biosensor on textured glass coupled with dielectrophoretic trapping for ultrasensitive detection of GFAP. Nanotechnology 2024; 35:295502. [PMID: 38604130 DOI: 10.1088/1361-6528/ad3d65] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 04/11/2024] [Indexed: 04/13/2024]
Abstract
Numerous efforts have been undertaken to mitigate the Debye screening effect of FET biosensors for achieving higher sensitivity. There are few reports that show sub-femtomolar detection of biomolecules by FET mechanisms but they either suffer from significant background noise or lack robust control. In this aspect, deformed/crumpled graphene has been recently deployed by other researchers for various biomolecule detection like DNA, COVID-19 spike proteins and immunity markers like IL-6 at sub-femtomolar levels. However, the chemical vapor deposition (CVD) approach for graphene fabrication suffers from various surface contamination while the transfer process induces structural defects. In this paper, an alternative fabrication methodology has been proposed where glass substrate has been initially texturized by wet chemical etching through the sacrificial layer of synthesized silver nanoparticles, obtained by annealing of thin silver films leading to solid state dewetting. Graphene has been subsequently deposited by thermal reduction technique from graphene oxide solution. The resulting deformed graphene structure exhibits higher sensor response towards glial fibrillary acidic protein (GFAP) detection with respect to flat graphene owing to the combined effect of reduced Debye screening and higher surface area for receptor immobilization. Additionally, another interesting aspect of the reported work lies in the biomolecule capture by dielectrophoretic (DEP) transport on the crests of the convex surfaces of graphene in a coplanar gated topology structure which has resulted in 10 aM and 28 aM detection limits of GFAP in buffer and undiluted plasma respectively, within 15 min of application of analyte. The detection limit in buffer is almost four decades lower than that documented for GFAP using biosensors which is is expected to pave way for advancing graphene FET based sensors towards ultrasensitive point-of-care diagnosis of GFAP, a biomarker for traumatic brain injury.
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Affiliation(s)
- P Mukherjee
- Department of Electronics & Telecommunication Engineering, Indian Institute of Engineering Science & Technology, Shibpur, Howrah, India
| | - S Kundu
- Dr Bholanath Chakraborty Memorial Fundamental Research Laboratory (under CCRH), Centre of Healthcare Science & Technology, Indian Institute of Engineering Science & Technology, Shibpur, Howrah, India
| | - R Ganguly
- Centre of Healthcare Science & Technology, Indian Institute of Engineering Science & Technology, Shibpur, Howrah, India
| | - A Barui
- Centre of Healthcare Science & Technology, Indian Institute of Engineering Science & Technology, Shibpur, Howrah, India
| | - C RoyChaudhuri
- Department of Electronics & Telecommunication Engineering, Indian Institute of Engineering Science & Technology, Shibpur, Howrah, India
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Parasher K, Sharma C, Sharma S, Shrishti EY, Mukherjee P. Cryopreservation and assessment of genetic fidelity Acorus calamus Linn., an endangered medicinal plant. Cryo Letters 2024; 45:122-133. [PMID: 38557991] [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: 04/04/2024]
Abstract
BACKGROUND Acorus calamus Linn. is a medicinally valuable monocot plant belonging to the family Acoraceae. Over-exploitation and unscientific approach towards harvesting to fulfill an ever-increasing demand have placed it in the endangered list of species. OBJECTIVE To develop vitrification-based cryopreservation protocols for A. calamus shoot tips, using conventional vitrification and V cryo-plate. MATERIALS AND METHODS Shoot tips (2 mm in size) were cryopreserved with the above techniques by optimizing various parameters such as preculture duration, sucrose concentration in the preculture medium, and PVS2 dehydration time. Regenerated plantlets obtained post-cryopreservation were evaluated by random amplified polymorphic DNA (RAPD) to test their genetic fidelity. RESULTS The highest regrowth of 88.3% after PVS2 exposure of 60 min was achieved with V cryo-plate as compared to 75% after 90 min of PVS2 exposure using conventional vitrification. After cryopreservation, shoot tips developed into complete plantlets in 28 days on regrowth medium (0.5 mg/L BAP, 0.3 mg/L GA3, and 0.3 mg/L ascorbic acid). RAPD analysis revealed 100% monomorphism in all cryo-storage derived regenerants and in vitro donor (120-days-old) plants. CONCLUSION Shoot tips of A. calamus that were cryopreserved had 88.3% regrowth using V cryo-plate technique and the regerants retained genetic fidelity. https://doi.org/10.54680/fr24210110412.
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Affiliation(s)
- K Parasher
- Department of Botany, Panjab University, Chandigarh, India
| | - C Sharma
- Department of Botany, Panjab University, Chandigarh, India
| | - S Sharma
- Department of Botany, Panjab University, Chandigarh; Department of Biosciences, University Institute of Biotechnology, Chandigarh University, Mohali, India
| | | | - P Mukherjee
- Department of Botany, Panjab University, Chandigarh, India.
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Parasher K, Sharma S, Mukherjee P, Qazi PH. Cryopreservation of zygotic embryos of Podophyllum hexandrum Royle, an endangered medicinal plant, by vitrification and v cryo-plate techniques. Cryo Letters 2023; 44:219-228. [PMID: 37883139] [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: 10/27/2023]
Abstract
BACKGROUND Podophyllum hexandrum is a highly endangered valuable medicinal plant of the Himalayas belonging to family Berberidaceae. This plant needs conservation efforts due to the over-exploitation and unscrupulous harvesting from the wild because of its ever-increasing demand. OBJECTIVE To establish a long-term cryopreservation method for Podophyllum hexandrum using two techniques: Vitrification and V Cryo-plate. MATERIALS AND METHODS Zygotic embryos were cryopreserved using vitrification and V cryo-plate by optimization of parameters including preculture time, loading time and PVS2 dehydration time. Recovery of zygotic embryos was performed on different regrowth media for plantlet formation. RESULTS With V cryo-plate, 90% regrowth was obtained as compared to 73.3% with vitrification. V Cryo-plate conditions were pre-culture of zygotic embryos in 0.3 M sucrose for 4 days, treatment in loading solution with 0.8 M sucrose for 20 min, dehydration in PVS2 for 50 min, LN exposure, unloading in 1.2 M sucrose for 20 min and transfer of zygotic embryos to regrowth medium for recovery. During recovery, the maximum number of shoots (4.2) and highest shoot length (5.1 cm) were observed on regrowth medium with 1.5 mg per liter BAP and 0.1 mg per liter IAA (R7). CONCLUSION Zygotic embryos of Podophyllum hexandrum were cryopreserved with 90% regrowth using a V cryoplate technique and plantlets were produced directly after cryopreservation. Doi: 10.54680/fr23410110712.
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Affiliation(s)
- K Parasher
- Department of Botany, Panjab University, Chandigarh, 160014, India
| | - S Sharma
- Department of Botany, Panjab University, Chandigarh, 160014, India
| | - P Mukherjee
- Department of Botany, Panjab University, Chandigarh, 160014, India. or
| | - P H Qazi
- Plant Molecular Biology and Biotechnology Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, 180016, Jammu and Kashmir, India
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Patel A, Shankaran R, Singh H, Bhatnagar S, Dash S, Mukherjee P, Rathore A, Chatterjee T, Mishra A, Suresh P. Cancer trends and burden among Armed Forces personnel, veterans and their families: Cancer registry data analysis from tertiary care hospital. Med J Armed Forces India 2023; 79:141-151. [PMID: 36969131 PMCID: PMC10037057 DOI: 10.1016/j.mjafi.2020.09.011] [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] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 09/28/2020] [Indexed: 10/21/2022] Open
Abstract
Background Cancer incidence is rising across the globe. The incidence and patterns of various cancers among Armed Forces Personnel and Veterans is not known. We did the analysis of registry data maintained at our hospital. Methods A retrospective analysis was performed of all patients registered at our hospital cancer registry between 01st January 2017 and 31st December 2019. Patients were registered with unique identification number. Baseline demographics and cancer subtype data were retrieved. Patients with histopathologically proven diagnosis and age ≥18 years were studied. Armed Forces Personnel (AFP) were defined as those who are in active service, and Veterans as those who had retired from service at the time of registration. Patients with Acute and Chronic Leukemias were excluded. Results New cases registered were 2023, 2856 and 3057 in year 2017, 2018, 2019 respectively. AFP, Veterans and dependents among them were 9.6%, 17.8%, and 72.6% respectively. Haryana, Uttar Pradesh and Rajasthan represented 55% of all cases with male to female ratio 1.14:1 and median age was 59 years. The median age among AFP was 39 years. Among AFP as well as veterans, Head and Neck cancer was the most common malignancy. Cancer incidence was significantly higher in adults >40 years as compared to <40 years. Conclusion Seven percent rise per year of new cases in this cohort is alarming. Tobacco-related cancers were the most common. There is an unmet need to establish a prospective centralized Cancer Registry to better understand the risk factors, outcomes of treatment and strengthen the policy matters.
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Affiliation(s)
- Amol Patel
- Medical Oncologist, Army Hospital (R&R), Delhi Cantt, India
| | - R. Shankaran
- Head of Department (Surgery Oncology), INHS Ashwini, Mumbai, India
| | - H.P. Singh
- Head of Department (Medical Oncology), Army Hospital (R&R), Delhi Cantt, India
| | - S. Bhatnagar
- Additional DGAFMS (MR, H & Trg), O/o DGAFMS, New Delhi, India
| | - S.C. Dash
- Dy Commandant, Army Hospital (R&R), Delhi Cantt, India
| | - P. Mukherjee
- Head of Department (Nuclear Medicine), Army Hospital (R&R), Delhi Cantt, India
| | - Anvesh Rathore
- Medical Oncologist, Army Hospital (R&R), Delhi Cantt, India
| | | | - Atul Mishra
- Senior Adviser (Radiology), Army Hospital (R&R), Delhi Cantt, India
| | - P. Suresh
- Senior Adviser (Medicine) & Medical Oncologist, Army Hospital (R&R), Delhi Cantt, India
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Maldjian JA, Lee R, Jordan J, Davenport EM, Proskovec AL, Wintermark M, Stufflebeam S, Anderson J, Mukherjee P, Nagarajan SS, Ferrari P, Gaetz W, Schwartz E, Roberts TPL. ACR White Paper on Magnetoencephalography and Magnetic Source Imaging: A Report from the ACR Commission on Neuroradiology. AJNR Am J Neuroradiol 2022; 43:E46-E53. [PMID: 36456085 DOI: 10.3174/ajnr.a7714] [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: 09/30/2022] [Accepted: 10/04/2022] [Indexed: 12/04/2022]
Abstract
Magnetoencephalography, the extracranial detection of tiny magnetic fields emanating from intracranial electrical activity of neurons, and its source modeling relation, magnetic source imaging, represent a powerful functional neuroimaging technique, able to detect and localize both spontaneous and evoked activity of the brain in health and disease. Recent years have seen an increased utilization of this technique for both clinical practice and research, in the United States and worldwide. This report summarizes current thinking, presents recommendations for clinical implementation, and offers an outlook for emerging new clinical indications.
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Affiliation(s)
- J A Maldjian
- From the Advanced Neuroscience Imaging Research Laboratory (J.A.M., E.M.D., A.L.P.) .,MEG Center of Excellence (J.A.M., E.M.D., A.L.P.).,Department of Radiology (J.A.M., E.M.D., A.L.P.), University of Texas Southwestern Medical Center, Dallas, Texas
| | - R Lee
- Department of Neuroradiology (R.L.), University of California San Diego, San Diego, California
| | - J Jordan
- ACR Commission on Neuroradiology (J.J.), American College of Radiology, Reston, Virginia.,Stanford University School of Medicine (J.J.), Stanford, California
| | - E M Davenport
- From the Advanced Neuroscience Imaging Research Laboratory (J.A.M., E.M.D., A.L.P.).,MEG Center of Excellence (J.A.M., E.M.D., A.L.P.).,Department of Radiology (J.A.M., E.M.D., A.L.P.), University of Texas Southwestern Medical Center, Dallas, Texas
| | - A L Proskovec
- From the Advanced Neuroscience Imaging Research Laboratory (J.A.M., E.M.D., A.L.P.).,MEG Center of Excellence (J.A.M., E.M.D., A.L.P.).,Department of Radiology (J.A.M., E.M.D., A.L.P.), University of Texas Southwestern Medical Center, Dallas, Texas
| | - M Wintermark
- Department of Neuroradiology (M.W.), University of Texas MD Anderson Center, Houston, Texas
| | - S Stufflebeam
- Athinoula A. Martinos Center for Biomedical Imaging (S.S.), Department of Radiology, Massachusetts General Hospital, Charlestown, Massachusetts
| | - J Anderson
- Department of Radiology and Imaging Sciences (J.A.), University of Utah School of Medicine, Salt Lake City, Utah
| | - P Mukherjee
- Department of Radiology and Biomedical Imaging (P.M., S.S.N.), University of California, San Francisco, San Francisco, California
| | - S S Nagarajan
- Department of Radiology and Biomedical Imaging (P.M., S.S.N.), University of California, San Francisco, San Francisco, California
| | - P Ferrari
- Pediatric Neurosciences (P.F.), Helen DeVos Children's Hospital, Grand Rapids, Michigan.,Department of Pediatrics and Human Development (P.F.), College of Human Medicine, Michigan State University, Grand Rapids, Michigan
| | - W Gaetz
- Department of Radiology (W.G., E.S., T.P.L.R.), Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - E Schwartz
- Department of Radiology (W.G., E.S., T.P.L.R.), Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - T P L Roberts
- Department of Radiology (W.G., E.S., T.P.L.R.), Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
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Abstract
The animal model deals with the species other than the human, as it can imitate the disease progression, its’ diagnosis as well as a treatment similar to human. Discovery of a drug and/or component, equipment, their toxicological studies, dose, side effects are in vivo studied for future use in humans considering its’ ethical issues. Here lies the importance of the animal model for its enormous use in biomedical research. Animal models have many facets that mimic various disease conditions in humans like systemic autoimmune diseases, rheumatoid arthritis, epilepsy, Alzheimer’s disease, cardiovascular diseases, Atherosclerosis, diabetes, etc., and many more. Besides, the model has tremendous importance in drug development, development of medical devices, tissue engineering, wound healing, and bone and cartilage regeneration studies, as a model in vascular surgeries as well as the model for vertebral disc regeneration surgery. Though, all the models have some advantages as well as challenges, but, present review has emphasized the importance of various small and large animal models in pharmaceutical drug development, transgenic animal models, models for medical device developments, studies for various human diseases, bone and cartilage regeneration model, diabetic and burn wound model as well as surgical models like vascular surgeries and surgeries for intervertebral disc degeneration considering all the ethical issues of that specific animal model. Despite, the process of using the animal model has facilitated researchers to carry out the researches that would have been impossible to accomplish in human considering the ethical prohibitions.
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Affiliation(s)
- P Mukherjee
- Department of Veterinary Clinical Complex, West Bengal University of Animal and Fishery Sciences, Mohanpur, Nadia, India
| | - S Roy
- Department of Veterinary Clinical Complex, West Bengal University of Animal and Fishery Sciences, Mohanpur, Nadia, India
| | - D Ghosh
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal and Fishery Sciences, Kolkata, India
| | - S K Nandi
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal and Fishery Sciences, Kolkata, India.
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O'Carroll S, Cremin M, Meehan E, O'Leary H, Galvin R, Fitzgerald L, O'Connell P, Mukherjee P. 87 PREDICTIVE VALIDITY OF SCREENING TOOLS USED BY A FRAILTY INTERVENTION TEAM IN AN IRISH EMERGENCY DEPARTMENT: A RETROSPECTIVE COHORT STUDY. Age Ageing 2021. [DOI: 10.1093/ageing/afab216.87] [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: 02/25/2023] Open
Abstract
Abstract
Background
Various screening tools exist to identify frail and at-risk older adults in the emergency department (ED). This can facilitate targeted assessment and management, leading to improve outcomes. This study evaluated the predictive validity of four screening tools used by an ED-based team of allied health professionals.
Methods
The Variable Indicative of Placement (VIP) tool, Think Frailty Tool, Clinical Frailty Scale (CFS) and 4AT were administered to adults aged ≥75 years as part of assessment by the Frailty Intervention Therapy Team in an Irish ED. Outcomes were hospital admission; re-attendance within 28 or 90 days; and death within 28 or 365 days. Scores were dichotomised, and for each outcome, relative risks and sensitivity, specificity, positive and negative predictive values were calculated.
Results
Over the six-month period, 429 individuals (median age:82 years) were assessed. Of these, 59% were VIP-positive, 81% screened at-risk of frailty on the Think Frailty Tool, 56% screened positive for frailty on the CFS, and 16% screened positive on the 4AT. Hospital admission, re-attendance at 28 and 90 days, and death within 28 and 365 days were 56%, 12%, 27%, 5%, and 23%, respectively. Positive screens on the VIP, Think Frailty Tool, CFS and 4AT were associated with significantly increased risk of hospital admission and death within 28 or 365 days (p < 0.05). Positive screens on the Think Frailty Tool and CFS were also associated with increased risk of 90-day re-attendance (p < 0.05). Of the four tools, the Think Frailty Tool had the highest sensitivity (86%–100%) for all outcomes. The CFS showed high sensitivity for detecting death within 28 or 365 days (95% and 84%, respectively), but lower sensitivity (68%–75%) for other outcomes. The 4AT demonstrated the lowest sensitivity for all outcomes (20%–46%).
Conclusion
The Think Frailty Tool and CFS were the most useful for predicting adverse outcomes in this group.
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Affiliation(s)
| | - M Cremin
- University Hospital Kerry , Tralee, Ireland
| | - E Meehan
- University of Limerick , Limerick, Ireland
| | - H O'Leary
- University Hospital Kerry , Tralee, Ireland
| | - R Galvin
- University of Limerick , Limerick, Ireland
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Sharma S, Parasher K, Mukherjee P, Sharma YP. Cryopreservation of a threatened medicinal plant, Valeriana jatamansi Jones, using vitrification and assessment of biosynthetic stability of regenerants. Cryo Letters 2021; 42:300-308. [PMID: 35363851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
BACKGROUND Valeriana jatamansi Jones is a medicinal plant of the Himalayan region with high trade value. Since overexploitation of this wild species led it to be listed as threatened, a comprehensive conservation strategy is needed. Cryopreservation would be a useful complementary method to conventional conservation methods. OBJECTIVE To develop a cryopreservation protocol for V. jatamansi with maintenance of biosynthetic stability of regenerants. MATERIALS AND METHODS In vitro shoot tips were cryopreserved using vitrification with either PVS2 or PVS3 and the efficacy of the two cryoprotectant mixtures compared. Regenerated plantlets were evaluated by HPLC analysis for contents of four valepotriates viz. valtrate, acevaltrate, didrovaltrate and IVHD valtrate. RESULTS The highest shoot recovery (91.6%) after transfer to liquid nitrogen was obtained when shoot tips were treated with PVS2 at 0°C for 110 min, which was significantly higher than the highest recovery (73.3%) obtained using PVS3 for any duration tested. Evaluation of biosynthetic stability showed no variation in valepotriate contents between in vitro maintained and cryopreserved derived plantlets. CONCLUSION This protocol will be useful for the long-term conservation of this species as high frequency recovery and biosynthetic stability after cryopreservation were obtained.
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Affiliation(s)
- S Sharma
- Department of Botany, Panjab University, Chandigarh, 160 014, India
| | - K Parasher
- Department of Botany, Panjab University, Chandigarh, 160 014, India
| | - P Mukherjee
- Department of Botany, Panjab University, Chandigarh, 160 014, India.
| | - Y P Sharma
- Department of Forest Products, Dr. YS Parmar University of Horticulture and Forestry, Solan, Himachal Pradesh, 173 230, India
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Mukherjee P, Agarwal S, Kalyani N, Roy M, Doshi A, Kommineni S, Patel R. PO-0987 Evaluation of swallowing function using PSS-HN scale for head-neck cancer patients undergoing IMRT. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07438-7] [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: 10/20/2022]
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Dutta A, Dey S, Gayathri N, Mukherjee P, Roy TK, Sagdeo A, Neogy S. Microstructural evolution of proton irradiated Fe-2.25Cr–1Mo characterized using synchrotron XRD (SXRD). Radiat Phys Chem Oxf Engl 1993 2021. [DOI: 10.1016/j.radphyschem.2021.109459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Das S, Chourashi R, Mukherjee P, Kundu S, Koley H, Dutta M, Mukhopadhyay AK, Okamoto K, Chatterjee NS. Inhibition of growth and virulence of Vibrio cholerae by carvacrol, an essential oil component of Origanum spp. J Appl Microbiol 2021; 131:1147-1161. [PMID: 33544959 DOI: 10.1111/jam.15022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 01/14/2021] [Accepted: 01/28/2021] [Indexed: 01/11/2023]
Abstract
AIMS In the age where bacterial resistance to conventional antibiotics is increasing at an alarming rate, the use of the traditional plant, herb extracts or other bioactive constituents is gradually becoming popular as an anti-virulence agent to treat pathogenic diseases. Carvacrol, a major essential oil fraction of Oregano, possesses a wide range of bioactivities. Therefore, we aimed to study the effect of sub-inhibitory concentrations of carvacrol on major virulence traits of Vibrio cholerae. METHODS AND RESULTS We have used in vitro as well as ex vivo models to access the anti-pathogenic role of carvacrol. We found that the sub-inhibitory concentration of carvacrol significantly repressed bacterial mucin penetrating ability. Carvacrol also reduced the adherence and fluid accumulation in the rabbit ileal loop model. Reduction in virulence is associated with the downregulated expression of tcpA, ctxB, hlyA and toxT. Furthermore, carvacrol inhibits flagellar synthesis by downregulating the expression of flrC and most of the class III genes. CONCLUSIONS Carvacrol exhibited anti-virulence activity against V. cholerae, which involved many events including the inhibition of mucin penetration, adhesion, reduced expression of virulence-associated genes culminating in reduced fluid accumulation. SIGNIFICANCE AND IMPACT OF THE STUDY These findings indicate that carvacrol possesses inhibitory activity against V. cholerae pathogenesis and might be considered as a potential bio-active therapeutic alternative to combat cholera.
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Affiliation(s)
- S Das
- Division of Biochemistry, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, India
| | - R Chourashi
- Division of Biochemistry, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, India
| | - P Mukherjee
- Division of Bacteriology, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, India
| | - S Kundu
- Division of Biochemistry, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, India
| | - H Koley
- Division of Bacteriology, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, India
| | - M Dutta
- Division of Electron Microscopy, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, India
| | - A K Mukhopadhyay
- Division of Bacteriology, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, India
| | - K Okamoto
- Collaborative Research Center of Okayama University for Infectious Diseases at NICED, Kolkata, India
| | - N S Chatterjee
- Division of Biochemistry, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, India
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Palacios EM, Owen JP, Yuh EL, Wang MB, Vassar MJ, Ferguson AR, Diaz-Arrastia R, Giacino JT, Okonkwo DO, Robertson CS, Stein MB, Temkin N, Jain S, McCrea M, MacDonald CL, Levin HS, Manley GT, Mukherjee P. The evolution of white matter microstructural changes after mild traumatic brain injury: A longitudinal DTI and NODDI study. Sci Adv 2020; 6:eaaz6892. [PMID: 32821816 PMCID: PMC7413733 DOI: 10.1126/sciadv.aaz6892] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 06/26/2020] [Indexed: 05/11/2023]
Abstract
Neuroimaging biomarkers that can detect white matter (WM) pathology after mild traumatic brain injury (mTBI) and predict long-term outcome are needed to improve care and develop therapies. We used diffusion tensor imaging (DTI) and neurite orientation dispersion and density imaging (NODDI) to investigate WM microstructure cross-sectionally and longitudinally after mTBI and correlate these with neuropsychological performance. Cross-sectionally, early decreases of fractional anisotropy and increases of mean diffusivity corresponded to WM regions with elevated free water fraction on NODDI. This elevated free water was more extensive in the patient subgroup reporting more early postconcussive symptoms. The longer-term longitudinal WM changes consisted of declining neurite density on NODDI, suggesting axonal degeneration from diffuse axonal injury for which NODDI is more sensitive than DTI. Therefore, NODDI is a more sensitive and specific biomarker than DTI for WM microstructural changes due to mTBI that merits further study for mTBI diagnosis, prognosis, and treatment monitoring.
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Affiliation(s)
- E. M. Palacios
- Department of Radiology & Biomedical Imaging, UCSF, San Francisco, CA, USA
| | - J. P. Owen
- Department of Radiology, University of Washington, Seattle, WA, USA
| | - E. L. Yuh
- Department of Radiology & Biomedical Imaging, UCSF, San Francisco, CA, USA
- Brain and Spinal Cord Injury Center, Zuckerberg San Francisco General Hospital and Trauma Center, San Francisco, CA, USA
| | - M. B. Wang
- Department of Radiology & Biomedical Imaging, UCSF, San Francisco, CA, USA
| | - M. J. Vassar
- Brain and Spinal Cord Injury Center, Zuckerberg San Francisco General Hospital and Trauma Center, San Francisco, CA, USA
- Department of Neurological Surgery, UCSF, San Francisco, CA, USA
| | - A. R. Ferguson
- Brain and Spinal Cord Injury Center, Zuckerberg San Francisco General Hospital and Trauma Center, San Francisco, CA, USA
- Department of Neurological Surgery, UCSF, San Francisco, CA, USA
- San Francisco Veterans Affairs Medical Center, San Francisco, CA, USA
| | - R. Diaz-Arrastia
- Department of Neurology, University of Pennsylvania, Philadelphia, PA, USA
| | - J. T. Giacino
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, MA, USA
- Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA, USA
| | - D. O. Okonkwo
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - C. S. Robertson
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, USA
| | - M. B. Stein
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, USA
- Department of Family Medicine & Public Health, University of California, San Diego, La Jolla, CA, USA
| | - N. Temkin
- Department of Neurological Surgery, University of Washington, Seattle, WA, USA
| | - S. Jain
- Department of Family Medicine & Public Health, University of California, San Diego, La Jolla, CA, USA
| | - M. McCrea
- Departments of Neurosurgery and Neurology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - C. L. MacDonald
- Department of Neurological Surgery, University of Washington, Seattle, WA, USA
| | - H. S. Levin
- Department of Neurology, Baylor College of Medicine, Houston, TX, USA
| | - G. T. Manley
- Brain and Spinal Cord Injury Center, Zuckerberg San Francisco General Hospital and Trauma Center, San Francisco, CA, USA
- Department of Neurological Surgery, UCSF, San Francisco, CA, USA
| | - P. Mukherjee
- Department of Radiology & Biomedical Imaging, UCSF, San Francisco, CA, USA
- Brain and Spinal Cord Injury Center, Zuckerberg San Francisco General Hospital and Trauma Center, San Francisco, CA, USA
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, CA, USA
- Corresponding author.
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Mandal S, Sharma S, Gayathri N, Sudarshan K, Mukherjee P, Pujari P, Menon R, Nabhiraj P, Sagdeo A. Synchrotron GIXRD and slow positron beam characterisation of Ar ion irradiated pure V and V-4Cr-4Ti alloy: Candidate structural material for Fusion reactor application. Fusion Engineering and Design 2020. [DOI: 10.1016/j.fusengdes.2020.111518] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Rosenthal VD, Bat-Erdene I, Gupta D, Belkebir S, Rajhans P, Zand F, Myatra SN, Afeef M, Tanzi VL, Muralidharan S, Gurskis V, Al-Abdely HM, El-Kholy A, AlKhawaja SAA, Sen S, Mehta Y, Rai V, Hung NV, Sayed AF, Guerrero-Toapanta FM, Elahi N, Morfin-Otero MDR, Somabutr S, De-Carvalho BM, Magdarao MS, Velinova VA, Quesada-Mora AM, Anguseva T, Ikram A, Aguilar-de-Moros D, Duszynska W, Mejia N, Horhat FG, Belskiy V, Mioljevic V, Di-Silvestre G, Furova K, Gamar-Elanbya MO, Gupta U, Abidi K, Raka L, Guo X, Luque-Torres MT, Jayatilleke K, Ben-Jaballah N, Gikas A, Sandoval-Castillo HR, Trotter A, Valderrama-Beltrán SL, Leblebicioglu H, Riera F, López M, Maurizi D, Desse J, Pérez I, Silva G, Chaparro G, Golschmid D, Cabrera R, Montanini A, Bianchi A, Vimercati J, Rodríguez-del-Valle M, Domínguez C, Saul P, Chediack V, Piastrelini M, Cardena L, Ramasco L, Olivieri M, Gallardo P, Juarez P, Brito M, Botta P, Alvarez G, Benchetrit G, Caridi M, Stagnaro J, Bourlot I, García M, Arregui N, Saeed N, Abdul-Aziz S, ALSayegh S, Humood M, Mohamed-Ali K, Swar S, Magray T, Aguiar-Portela T, Sugette-de-Aguiar T, Serpa-Maia F, Fernandes-Alves-de-Lima L, Teixeira-Josino L, Sampaio-Bezerra M, Furtado-Maia R, Romário-Mendes A, Alves-De-Oliveira A, Vasconcelos-Carneiro A, Anjos-Lima JD, Pinto-Coelho K, Maciel-Canuto M, Rocha-Batista M, Moreira T, Rodrigues-Amarilo N, Lima-de-Barros T, Guimarães KA, Batista C, Santos C, de-Lima-Silva F, Santos-Mota E, Karla L, Ferreira-de-Souza M, Luzia N, de-Oliveira S, Takeda C, Azevedo-Ferreira-Lima D, Faheina J, Coelho-Oliveira L, do-Nascimento S, Machado-Silva V, Bento-Ferreira, Olszewski J, Tenorio M, Silva-Lemos A, Ramos-Feijó C, Cardoso D, Correa-Barbosa M, Assunção-Ponte G, Faheina J, da-Silva-Escudero D, Servolo-Medeiros E, Andrade-Oliveira-Reis M, Kostadinov E, Dicheva V, Petrov M, Guo C, Yu H, Liu T, Song G, Wang C, Cañas-Giraldo L, Marin-Tobar D, Trujillo-Ramirez E, Andrea-Rios P, Álvarez-Moreno C, Linares C, González-Rubio P, Ariza-Ayala B, Gamba-Moreno L, Gualtero-Trujill S, Segura-Sarmiento S, Rodriguez-Pena J, Ortega R, Olarte N, Pardo-Lopez Y, Luis Marino Otela-Baicue A, Vargas-Garcia A, Roncancio E, Gomez-Nieto K, Espinosa-Valencia M, Barahona-Guzman N, Avila-Acosta C, Raigoza-Martinez W, Villamil-Gomez W, Chapeta-Parada E, Mindiola-Rochel A, Corchuelo-Martinez A, Martinez A, Lagares-Guzman A, Rodriguez-Ferrer M, Yepes-Gomez D, Muñoz-Gutierrez G, Arguello-Ruiz A, Zuniga-Chavarria M, Maroto-Vargas L, Valverde-Hernández M, Solano-Chinchilla A, Calvo-Hernandez I, Chavarria-Ugalde O, Tolari G, Rojas-Fermin R, Diaz-Rodriguez C, Huascar S, Ortiz M, Bovera M, Alquinga N, Santacruz G, Jara E, Delgado V, Salgado-Yepez E, Valencia F, Pelaez C, Gonzalez-Flores H, Coello-Gordon E, Picoita F, Arboleda M, Garcia M, Velez J, Valle M, Unigarro L, Figueroa V, Marin K, Caballero-Narvaez H, Bayani V, Ahmed S, Alansary A, Hassan A, Abdel-Halim M, El-Fattah M, Abdelaziz-Yousef R, Hala A, Abdelhady K, Ahmed-Fouad H, Mounir-Agha H, Hamza H, Salah Z, Abdel-Aziz D, Ibrahim S, Helal A, AbdelMassih A, Mahmoud AR, Elawady B, El-sherif R, Fattah-Radwan Y, Abdel-Mawla T, Kamal-Elden N, Kartsonaki M, Rivera D, Mandal S, Mukherjee S, Navaneet P, Padmini B, Sorabjee J, Sakle A, Potdar M, Mane D, Sale H, Abdul-Gaffar M, Kazi M, Chabukswar S, Anju M, Gaikwad D, Harshe A, Blessymole S, Nair P, Khanna D, Chacko F, Rajalakshmi A, Mubarak A, Kharbanda M, Kumar S, Mathur P, Saranya S, Abubakar F, Sampat S, Raut V, Biswas S, Kelkar R, Divatia J, Chakravarthy M, Gokul B, Sukanya R, Pushparaj L, Thejasvini A, Rangaswamy S, Saini N, Bhattacharya C, Das S, Sanyal S, Chaudhury B, Rodrigues C, Khanna G, Dwivedy A, Binu S, Shetty S, Eappen J, Valsa T, Sriram A, Todi S, Bhattacharyya M, Bhakta A, Ramachandran B, Krupanandan R, Sahoo P, Mohanty N, Sahu S, Misra S, Ray B, Pattnaik S, Pillai H, Warrier A, Ranganathan L, Mani A, Rajagopal S, Abraham B, Venkatraman R, Ramakrishnan N, Devaprasad D, Siva K, Divekar D, Satish Kavathekar M, Suryawanshi M, Poojary A, Sheeba J, Patil P, Kukreja S, Varma K, Narayanan S, Sohanlal T, Agarwal A, Agarwal M, Nadimpalli G, Bhamare S, Thorat S, Sarda O, Nadimpalli P, Nirkhiwale S, Gehlot G, Bhattacharya S, Pandya N, Raphel A, Zala D, Mishra S, Patel M, Aggarwal D, Jawadwal B, Pawar N, Kardekar S, Manked A, Tamboli A, Manked A, Khety Z, Singhal T, Shah S, Kothari V, Naik R, Narain R, Sengupta S, Karmakar A, Mishra S, Pati B, Kantroo V, Kansal S, Modi N, Chawla R, Chawla A, Roy I, Mukherjee S, Bej M, Mukherjee P, Baidya S, Durell A, Vadi S, Saseedharan S, Anant P, Edwin J, Sen N, Sandhu K, Pandya N, Sharma S, Sengupta S, Palaniswamy V, Sharma P, Selvaraj M, Saurabh L, Agarwal M, Punia D, Soni D, Misra R, Harsvardhan R, Azim A, Kambam C, Garg A, Ekta S, Lakhe M, Sharma C, Singh G, Kaur A, Singhal S, Chhabra K, Ramakrishnan G, Kamboj H, Pillai S, Rani P, Singla D, Sanaei A, Maghsudi B, Sabetian G, Masjedi M, Shafiee E, Nikandish R, Paydar S, Khalili H, Moradi A, Sadeghi P, Bolandparvaz S, Mubarak S, Makhlouf M, Awwad M, Ayyad O, Shaweesh A, Khader M, Alghazawi A, Hussien N, Alruzzieh M, Mohamed Y, ALazhary M, Abdul Aziz O, Alazmi M, Mendoza J, De Vera P, Rillorta A, de Guzman M, Girvan M, Torres M, Alzahrani N, Alfaraj S, Gopal U, Manuel M, Alshehri R, Lessing L, Alzoman H, Abdrahiem J, Adballah H, Thankachan J, Gomaa H, Asad T, AL-Alawi M, Al-Abdullah N, Demaisip N, Laungayan-Cortez E, Cabato A, Gonzales J, Al Raey M, Al-Darani S, Aziz M, Al-Manea B, Samy E, AlDalaton M, Alaliany M, Alabdely H, Helali N, Sindayen G, Malificio A, Al-Dossari H, Kelany A, Algethami A, Mohamed D, Yanne L, Tan A, Babu S, Abduljabbar S, Al-Zaydani M, Ahmed H, Al Jarie A, Al-Qathani A, Al-Alkami H, AlDalaton M, Alih S, Alaliany M, Gasmin-Aromin R, Balon-Ubalde E, Diab H, Kader N, Hassan-Assiry I, Kelany A, Albeladi E, Aboushoushah S, Qushmaq N, Fernandez J, Hussain W, Rajavel R, Bukhari S, Rushdi H, Turkistani A, Mushtaq J, Bohlega E, Simon S, Damlig E, Elsherbini S, Abraham S, Kaid E, Al-Attas A, Hawsawi G, Hussein B, Esam B, Caminade Y, Santos A, Abdulwahab M, Aldossary A, Al-Suliman S, AlTalib A, Albaghly N, HaqlreMia M, Kaid E, Altowerqi R, Ghalilah K, Alradady M, Al-Qatri A, Chaouali M, Shyrine E, Philipose J, Raees M, AbdulKhalik N, Madco M, Acostan C, Safwat R, Halwani M, Abdul-Aal N, Thomas A, Abdulatif S, Ali-Karrar M, Al-Gosn N, Al-Hindi A, Jaha R, AlQahtani S, Ayugat E, Al-Hussain M, Aldossary A, Al-Suliman S, Al-Talib A, Albaghly N, Haqlre-Mia M, Briones S, Krishnan R, Tabassum K, Alharbi L, Madani A, Al-Hindi A, Al-Gethamy M, Alamri D, Spahija G, Gashi A, Kurian A, George S, Mohamed A, Ramapurath R, Varghese S, Abdo N, Foda-Salama M, Al-Mousa H, Omar A, Salama M, Toleb M, Khamis S, Kanj S, Zahreddine N, Kanafani Z, Kardas T, Ahmadieh R, Hammoud Z, Zeid I, Al-Souheil A, Ayash H, Mahfouz T, Kondratas T, Grinkeviciute D, Kevalas R, Dagys A, Mitrev Z, Bogoevska-Miteva Z, Jankovska K, Guroska S, Petrovska M, Popovska K, Ng C, Hoon Y, Hasan YM, Othman-Jailani M, Hadi-Jamaluddin M, Othman A, Zainol H, Wan-Yusoff W, Gan C, Lum L, Ling C, Aziz F, Zhazali R, Abud-Wahab M, Cheng T, Elghuwael I, Wan-Mat W, Abd-Rahman R, Perez-Gomez H, Kasten-Monges M, Esparza-Ahumada S, Rodriguez-Noriega E, Gonzalez-Diaz E, Mayoral-Pardo D, Cerero-Gudino A, Altuzar-Figueroa M, Perez-Cruz J, Escobar-Vazquez M, Aragon D, Coronado-Magana H, Mijangos-Mendez J, Corona-Jimenez F, Aguirre-Avalos G, Lopez-Mateos A, Martinez-Marroquin M, Montell-Garcia M, Martinez-Martinez A, Leon-Sanchez E, Gomez-Flores G, Ramirez M, Gomez M, Lozano M, Mercado V, Zamudio-Lugo I, Gomez-Gonzalez C, Miranda-Novales M, Villegas-Mota I, Reyes-Garcia C, Ramirez-Morales M, Sanchez-Rivas M, Cureno-Diaz M, Matias-Tellez B, Gonzalez-Martinez J, Juarez-Vargas R, Pastor-Salinas O, Gutierrez-Munoz V, Conde-Mercado J, Bruno-Carrasco G, Manrique M, Monroy-Colin V, Cruz-Rivera Z, Rodriguez-Pacheco J, Cruz N, Hernandez-Chena B, Guido-Ramirez O, Arteaga-Troncoso G, Guerra-Infante F, Lopez-Hurtado M, Caleco JD, Leyva-Medellin E, Salamanca-Meneses A, Cosio-Moran C, Ruiz-Rendon R, Aguilar-Angel L, Sanchez-Vargas M, Mares-Morales R, Fernandez-Alvarez L, Castillo-Cruz B, Gonzalez-Ma M, Zavala-Ramír M, Rivera-Reyna L, del-Moral-Rossete L, Lopez-Rubio C, Valadez-de-Alba M, Bat-Erdene A, Chuluunchimeg K, Baatar O, Batkhuu B, Ariyasuren Z, Bayasgalan G, Baigalmaa S, Uyanga T, Suvderdene P, Enkhtsetseg D, Suvd-Erdene D, Chimedtseye E, Bilguun G, Tuvshinbayar M, Dorj M, Khajidmaa T, Batjargal G, Naranpurev M, Bat-Erdene A, Bolormaa T, Battsetseg T, Batsuren C, Batsaikhan N, Tsolmon B, Saranbaatar A, Natsagnyam P, Nyamdawa O, Madani N, Abouqal R, Zeggwagh A, Berechid K, Dendane T, Koirala A, Giri R, Sainju S, Acharya S, Paul N, Parveen A, Raza A, Nizamuddin S, Sultan F, Imran X, Sajjad R, Khan M, Sana F, Tayyab N, Ahmed A, Zaman G, Khan I, Khurram F, Hussain A, Zahra F, Imtiaz A, Daud N, Sarwar M, Roop Z, Yusuf S, Hanif F, Shumaila X, Zeb J, Ali S, Demas S, Ariff S, Riaz A, Hussain A, Kanaan A, Jeetawi R, Castaño E, Moreno-Castillo L, García-Mayorca E, Prudencio-Leon W, Vivas-Pardo A, Changano-Rodriguez M, Castillo-Bravo L, Aibar-Yaranga K, Marquez-Mondalgo V, Mueras-Quevedo J, Meza-Borja C, Flor J, Fernandez-Camacho Y, Banda-Flores C, Pichilingue-Chagray J, Castaneda-Sabogal A, Caoili J, Mariano M, Maglente R, Santos S, de-Guzman G, Mendoza M, Javellana O, Tajanlangit A, Tapang A, Sg-Buenaflor M, Labro E, Carma R, Dy A, Fortin J, Navoa-Ng J, Cesar J, Bonifacio B, Llames M, Gata H, Tamayo A, Calupit H, Catcho V, Bergosa L, Abuy M, Barteczko-Grajek B, Rojek S, Szczesny A, Domanska M, Lipinska G, Jaroslaw J, Wieczoreka A, Szczykutowicza A, Gawor M, Piwoda M, Rydz-Lutrzykowska J, Grudzinska M, Kolat-Brodecka P, Smiechowicz K, Tamowicz B, Mikstacki A, Grams A, Sobczynski P, Nowicka M, Kretov V, Shalapuda V, Molkov A, Puzanov S, Utkin I, Tchekulaev A, Tulupova V, Vasiljevic S, Nikolic L, Ristic G, Eremija J, Kojovic J, Lekic D, Simic A, Hlinkova S, Lesnakova A, Kadankunnel S, Abdo-Ali M, Pimathai R, Wanitanukool S, Supa N, Prasan P, Luxsuwong M, Khuenkaew Y, Lamngamsupha J, Siriyakorn N, Prasanthai V, Apisarnthanarak A, Borgi A, Bouziri A, Cabadak H, Tuncer G, Bulut C, Hatipoglu C, Sebnem F, Demiroz A, Kaya A, Ersoz G, Kuyucu N, Karacorlu S, Oncul O, Gorenek L, Erdem H, Yildizdas D, Horoz O, Guclu E, Kaya G, Karabay O, Altindis M, Oztoprak N, Sahip Y, Uzun C, Erben N, Usluer G, Ozgunes I, Ozcelik M, Ceyda B, Oral M, Unal N, Cigdem Y, Bayar M, Bermede O, Saygili S, Yesiler I, Memikoglu O, Tekin R, Oncul A, Gunduz A, Ozdemir D, Geyik M, Erdogan S, Aygun C, Dilek A, Esen S, Turgut H, Sungurtekin H, Ugurcan D, Yarar V, Bilir Y, Bayram N, Devrim I, Agin H, Ceylan G, Yasar N, Oruc Y, Ramazanoglu A, Turhan O, Cengiz M, Yalcin A, Dursun O, Gunasan P, Kaya S, Senol G, Kocagoz A, Al-Rahma H, Annamma P, El-Houfi A, Vidal H, Perez F, D-Empaire G, Ruiz Y, Hernandez D, Aponte D, Salinas E, Vidal H, Navarrete N, Vargas R, Sanchez E, Ngo Quy C, Thu T, Nguyet L, Hang P, Hang T, Hanh T, Anh D. International Nosocomial Infection Control Consortium (INICC) report, data summary of 45 countries for 2012-2017: Device-associated module. Am J Infect Control 2020; 48:423-432. [PMID: 31676155 DOI: 10.1016/j.ajic.2019.08.023] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 08/20/2019] [Accepted: 08/21/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND We report the results of International Nosocomial Infection Control Consortium (INICC) surveillance study from January 2012 to December 2017 in 523 intensive care units (ICUs) in 45 countries from Latin America, Europe, Eastern Mediterranean, Southeast Asia, and Western Pacific. METHODS During the 6-year study period, prospective data from 532,483 ICU patients hospitalized in 242 hospitals, for an aggregate of 2,197,304 patient days, were collected through the INICC Surveillance Online System (ISOS). The Centers for Disease Control and Prevention-National Healthcare Safety Network (CDC-NHSN) definitions for device-associated health care-associated infection (DA-HAI) were applied. RESULTS Although device use in INICC ICUs was similar to that reported from CDC-NHSN ICUs, DA-HAI rates were higher in the INICC ICUs: in the medical-surgical ICUs, the pooled central line-associated bloodstream infection rate was higher (5.05 vs 0.8 per 1,000 central line-days); the ventilator-associated pneumonia rate was also higher (14.1 vs 0.9 per 1,000 ventilator-days,), as well as the rate of catheter-associated urinary tract infection (5.1 vs 1.7 per 1,000 catheter-days). From blood cultures samples, frequencies of resistance, such as of Pseudomonas aeruginosa to piperacillin-tazobactam (33.0% vs 18.3%), were also higher. CONCLUSIONS Despite a significant trend toward the reduction in INICC ICUs, DA-HAI rates are still much higher compared with CDC-NHSN's ICUs representing the developed world. It is INICC's main goal to provide basic and cost-effective resources, through the INICC Surveillance Online System to tackle the burden of DA-HAIs effectively.
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Swain P, Koli P, Ghorui S, Mukherjee P, Deshpande A. Thermofluid MHD studies in a model of Indian LLCB TBM at high magnetic field relevant to ITER. Fusion Engineering and Design 2020. [DOI: 10.1016/j.fusengdes.2019.111374] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Dixey RJC, Orlandi F, Manuel P, Mukherjee P, Dutton SE, Saines PJ. Emergent magnetic order and correlated disorder in formate metal-organic frameworks. Philos Trans A Math Phys Eng Sci 2019; 377:20190007. [PMID: 31130099 PMCID: PMC6562341 DOI: 10.1098/rsta.2019.0007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/04/2019] [Indexed: 06/09/2023]
Abstract
Magnetic materials with strong local interactions but lacking long-range order have long been a curiosity of physicists. Probing their magnetic interactions is crucial for understanding the unique properties they can exhibit. Metal-organic frameworks have recently gathered more attention as they can produce more exotic structures, allowing for controlled design of magnetic properties not found in conventional metal-oxide materials. Historically, magnetic diffuse scattering in such materials has been overlooked but has attracted greater attention recently, with advances in techniques. In this study, we investigate the magnetic structure of metal-organic formate frameworks, using heat capacity, magnetic susceptibility and neutron diffraction. In Tb(DCO2)3, we observe emergent magnetic order at temperatures below 1.2 K, consisting of two k-vectors. Ho(DCO2)3 shows diffuse scattering above 1.6 K, consistent with ferromagnetic chains packed in a frustrated antiferromagnetic triangular lattice, also observed in Tb(DCO2)3 above 1.2 K. The other lanthanides show no short- or long-range order down to 1.6 K. The results suggest an Ising-like one-dimensional magnetic order associated with frustration is responsible for the magnetocaloric properties, of some members in this family, improving at higher temperatures. This article is part of the theme issue 'Mineralomimesis: natural and synthetic frameworks in science and technology'.
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Affiliation(s)
- R. J. C. Dixey
- School of Physical Sciences, Ingram Building, University of Kent, Canterbury CT2 7NH, UK
| | - F. Orlandi
- ISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX, UK
| | - P. Manuel
- ISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX, UK
| | - P. Mukherjee
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
| | - S. E. Dutton
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
| | - P. J. Saines
- School of Physical Sciences, Ingram Building, University of Kent, Canterbury CT2 7NH, UK
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Mukherjee P, Karam A, Chakraborty A, Baruah S, Pegu R, Das S, Milton A, Puro K, Sanjukta R, Ghatak S, Shakuntala I, Laha R, Sen A. Identification of a novel cluster of PCV2 isolates from Meghalaya, India indicates possible recombination along with changes in capsid protein. Infection, Genetics and Evolution 2019; 71:7-15. [DOI: 10.1016/j.meegid.2019.02.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 02/13/2019] [Accepted: 02/22/2019] [Indexed: 10/27/2022]
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Carpenter MA, Evans DM, Schiemer JA, Wolf T, Adelmann P, Böhmer AE, Meingast C, Dutton SE, Mukherjee P, Howard CJ. Ferroelasticity, anelasticity and magnetoelastic relaxation in Co-doped iron pnictide: Ba(Fe 0.957Co 0.043) 2As 2. J Phys Condens Matter 2019; 31:155401. [PMID: 30641499 DOI: 10.1088/1361-648x/aafe29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The hypothesis that strain has a permeating influence on ferroelastic, magnetic and superconducting transitions in 122 iron pnictides has been tested by investigating variations of the elastic and anelastic properties of a single crystal of Ba(Fe0.957Co0.043)2As2 by resonant ultrasound spectroscopy as a function of temperature and externally applied magnetic field. Non-linear softening and stiffening of C 66 in the stability fields of both the tetragonal and orthorhombic structures has been found to conform quantitatively to the Landau expansion for a pseudoproper ferroelastic transition which is second order in character. The only exception is that the transition occurs at a temperature (T S ≈ 69 K) ~10 K above the temperature at which C 66 would extrapolate to zero ([Formula: see text] ≈ 59 K). An absence of anomalies associated with antiferromagnetic ordering below T N ≈ 60 K implies that coupling of the magnetic order parameter with shear strain is weak. It is concluded that linear-quadratic coupling between the structural/electronic and antiferromagnetic order parameters is suppressed due to the effects of local heterogeneous strain fields arising from the substitution of Fe by Co. An acoustic loss peak at ~50-55 K is attributed to the influence of mobile ferroelastic twin walls that become pinned by a thermally activated process involving polaronic defects. Softening of C 66 by up to ~6% below the normal-superconducting transition at T c ≈ 13 K demonstrates an effective coupling of the shear strain with the order parameter for the superconducting transition which arises indirectly as a consequence of unfavourable coupling of the superconducting order parameter with the ferroelastic order parameter. Ba(Fe0.957Co0.043)2As2 is representative of 122 pnictides as forming a class of multiferroic superconductors in which elastic strain relaxations underpin almost all aspects of coupling between the structural, magnetic and superconducting order parameters and of dynamic properties of the transformation microstructures they contain.
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Affiliation(s)
- M A Carpenter
- Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, United Kingdom
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Evans DM, Schiemer JA, Wolf T, Adelmann P, Böhmer AE, Meingast C, Dutton SE, Mukherjee P, Hsu YT, Carpenter MA. Strain relaxation behaviour of vortices in a multiferroic superconductor. J Phys Condens Matter 2019; 31:135403. [PMID: 30605895 DOI: 10.1088/1361-648x/aafbd7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The elastic and anelastic properties of a single crystal of Co-doped pnictide Ba(Fe0.957Co0.043)2As2 have been determined by resonant ultrasound spectroscopy in the frequency range 10-500 kHz, both as a function of temperature through the normal-superconducting transition (T c ≈ 12.5 K) and as a function of applied magnetic field up to 12.5 T. Correlation with thermal expansion, electrical resistivity, heat capacity, DC and AC magnetic data from crystals taken from the same synthetic batch has revealed the permeating influence of strain on coupling between order parameters for the ferroelastic (Q E) and superconducting (Q SC) transitions and on the freezing/relaxation behaviour of vortices. Elastic softening through T c in zero field can be understood in terms of classical coupling of the order parameter with the shear strain e 6, λe 6 [Formula: see text], which means that there must be a common strain mechanism for coupling of the form λ [Formula: see text] Q E. At fields of ~5 T and above, this softening is masked by Debye-like stiffening and acoustic loss processes due to vortex freezing. The first loss peak may be associated with the establishment of superconductivity on ferroelastic twin walls ahead of the matrix and the second is due to the vortex liquid-vortex glass transition. Strain contrast between vortex cores and the superconducting matrix will contribute significantly to interactions of vortices both with each other and with the underlying crystal structure. These interactions imply that iron-pnictides represent a class of multiferroic superconductors in which strain-mediated coupling occurs between the multiferroic properties (ferroelasticity, antiferromagnetism) and superconductivity.
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Affiliation(s)
- D M Evans
- Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, United Kingdom
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Bulens P, Couwenberg A, Intven M, Debucquoy A, Vandecaveye V, Philippens M, Mukherjee P, Gevaert O, Haustermans K. OC-0510 MRI radiomics to predict tumour response in patients with locally advanced rectal cancer. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30930-2] [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: 11/17/2022]
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Cheriyan A, Mukherjee P, Devasia A. Emphysematous pyelonephritis mimicking a groin swelling—A rare presentation. African Journal of Urology 2018. [DOI: 10.1016/j.afju.2018.04.002] [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: 10/28/2022] Open
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Varadaraj G, Chowdhary GS, Ananthakrishnan R, Jacob MJ, Mukherjee P. Diagnostic Accuracy of Stress Myocardial Perfusion Imaging in Diagnosing Stable Ischemic Heart Disease. J Assoc Physicians India 2018; 66:40-44. [PMID: 31324083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To determine the diagnostic accuracy of Stress Myocardial Perfusion Imaging (MPI) in diagnosing Stable Ischemic Heart Disease (SIHD). METHODS To analyze the sensitivity and specificity of Stress Myocardial Perfusion Imaging (MPI) in diagnosing Stable Ischemic Heart Disease (SIHD) by comparing with "gold standard" Coronary Angiogram. RESULTS A total of 80 patients were studied (51 male, 29 female). 52 patients had significant stenosis in coronary angiography and 49 patients had reversible perfusion defect in myocardial perfusion imaging (MPI). MPI had a sensitivity of 88.46% and a specificity of 89.29% in diagnosing stable ischemic heart disease. CONCLUSION Coronary Angiography remains the near gold standard in diagnosing ischemic heart disease but is associated with serious complications like stroke, arrhythmias, acute renal failure, infection, etc. Though Myocardial perfusion imaging cannot replace coronary angiogram, it can be used as a reliable and sensitive non-invasive alternate investigation to diagnose stable ischemic heart disease in high risk individuals who are unwilling for angiogram.
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Affiliation(s)
- G Varadaraj
- Graded Specialist, Department of Medicine, 15 Air Force Hospital, Jaisalmer, Rajasthan;Corresponding Author
| | - G S Chowdhary
- Senior Advisor (Medicine and Oncology), Department of Medicine, INHS Asvini, Mumbai, Maharashtra
| | - R Ananthakrishnan
- Senior Advisor (Medicine and Cardiology), Department of Medicine, INHS Asvini, Mumbai, Maharashtra
| | - M J Jacob
- Consultant and HOD (Medicine and Nuclear Medicine), Department of Medicine, Army Hospital (Research and Referral), New Delhi
| | - P Mukherjee
- Senior Advisor (Medicine and Nuclear medicine), Department of Medicine, INHS Asvini, Mumbai, Maharashtra
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Chakraborty AK, Karam A, Mukherjee P, Barkalita L, Borah P, Das S, Sanjukta R, Puro K, Ghatak S, Shakuntala I, Sharma I, Laha RG, Sen A. Detection of classical swine fever virus E2 gene in cattle serum samples from cattle herds of Meghalaya. Virusdisease 2018; 29:89-95. [PMID: 29607364 DOI: 10.1007/s13337-018-0433-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 01/20/2018] [Indexed: 10/18/2022] Open
Abstract
The present study focused on the detection and genetic characterisation of 5' untranslated region (5'UTR) and E2 gene of classical swine fever virus (CSFV, family Flaviviridae, genus Pestivirus) from bovine population of the northeastern region of India. A total of 134 cattle serum samples were collected from organised cattle farms and were screened for CSFV antigen with a commercial antigen capture enzyme linked immunosorbent assay (Ag-ELISA) and reverse transcription-polymerase chain reaction (RT-PCR). A total of 10 samples were positive for CSFV antigen by ELISA, while all of them were positive in PCR for 5'UTR region. Full length E2 region of CSFV were successfully amplified from two positive samples and used for subsequent phylogenetic analysis and determination of protein 3D structure which showed similarity with reported CSFV isolate from Assam of sub-genogroup 2.1, with minor variations in protein structure.
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Affiliation(s)
- A K Chakraborty
- Division of Animal Health, ICAR RC for NEH Region, Umiam, Meghalaya India.,2Department of Microbiology, Assam University, Silchar, Assam India
| | - A Karam
- Division of Animal Health, ICAR RC for NEH Region, Umiam, Meghalaya India
| | - P Mukherjee
- Division of Animal Health, ICAR RC for NEH Region, Umiam, Meghalaya India.,2Department of Microbiology, Assam University, Silchar, Assam India
| | - L Barkalita
- Department of Biotechnology, C.V.Sc, AAU, Khanapara, Assam India
| | - P Borah
- Department of Biotechnology, C.V.Sc, AAU, Khanapara, Assam India
| | - S Das
- Division of Animal Health, ICAR RC for NEH Region, Umiam, Meghalaya India
| | - R Sanjukta
- Division of Animal Health, ICAR RC for NEH Region, Umiam, Meghalaya India
| | - K Puro
- Division of Animal Health, ICAR RC for NEH Region, Umiam, Meghalaya India
| | - S Ghatak
- Division of Animal Health, ICAR RC for NEH Region, Umiam, Meghalaya India
| | - I Shakuntala
- Division of Animal Health, ICAR RC for NEH Region, Umiam, Meghalaya India
| | - I Sharma
- 2Department of Microbiology, Assam University, Silchar, Assam India
| | - R G Laha
- Division of Animal Health, ICAR RC for NEH Region, Umiam, Meghalaya India
| | - A Sen
- Division of Animal Health, ICAR RC for NEH Region, Umiam, Meghalaya India
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Affiliation(s)
- P Mukherjee
- Khoo Teck Puat Hospital, Department of Diagnostic Radiology, 90 Yishun Central, Singapore 768828
| | - A Chawla
- Khoo Teck Puat Hospital, Department of Diagnostic Radiology, 90 Yishun Central, Singapore 768828
| | - S Swarup
- Khoo Teck Puat Hospital, Department of Accident and Emergency, 90 Yishun Central, Singapore 768828
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Mukherjee P, Sackville Hamilton AC, Glass HFJ, Dutton SE. Sensitivity of magnetic properties to chemical pressure in lanthanide garnets Ln 3 A 2 X 3O 12, Ln = Gd, Tb, Dy, Ho, A = Ga, Sc, In, Te, X = Ga, Al, Li. J Phys Condens Matter 2017; 29:405808. [PMID: 28726675 DOI: 10.1088/1361-648x/aa810e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A systematic study of the structural and magnetic properties of three-dimensionally frustrated lanthanide garnets Ln 3 A 2 X 3O12, Ln = Gd, Tb, Dy, Ho, A = Ga, Sc, In, Te, X = Ga, Al, Li is presented. Garnets with Ln = Gd show magnetic behaviour consistent with isotropic Gd3+ spins; no magnetic ordering is observed for T ⩾ 0.4 K. Magnetic ordering features are seen for garnets with Ln = Tb, Dy, Ho in the temperature range 0.4 < T < 2.5 K, however the nature of the magnetic ordering varies for the different Ln as well as for different combinations of A and X. The magnetic behaviour can be explained by tuning of the magnetic interactions and changes in the single-ion anisotropy. The change in magnetic entropy is evaluated from isothermal magnetisation measurements to characterise the magnetocaloric effect in these materials. Among the Gd garnets, the maximum change in magnetic entropy per mole (15.45 J K-1 [Formula: see text]) is observed for Gd3Sc2Ga3O12 at 2 K, in a field of 9 T. The performance of Dy3Ga5O12 as a magnetocaloric material surpasses the other garnets with Ln = Tb, Dy, Ho.
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Affiliation(s)
- P Mukherjee
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
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Mukherjee P, Suard E, Dutton SE. Magnetic properties of monoclinic lanthanide metaborates, Ln(BO 2) 3, Ln = Pr, Nd, Gd, Tb. J Phys Condens Matter 2017; 29:405807. [PMID: 28731423 DOI: 10.1088/1361-648x/aa8160] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The bulk magnetic properties of the lanthanide metaborates, Ln(BO2)3, Ln = Pr, Nd, Gd, Tb are studied using magnetic susceptibility, heat capacity and isothermal magnetisation measurements. They are found to crystallise in a monoclinic structure containing chains of magnetic Ln 3+ and could therefore exhibit features of low-dimensional magnetism and frustration. Pr(BO2)3 is found to have a non-magnetic singlet ground state. No magnetic ordering is observed down to 0.4 K for Nd(BO2)3. Gd(BO2)3 exhibits a sharp magnetic transition at 1.1 K, corresponding to 3D magnetic ordering. Tb(BO2)3 shows two magnetic ordering features at 1.05 K and 1.95 K. A magnetisation plateau at a third of the saturation magnetisation is seen at 2 K for both Nd(BO2)3 and Tb(BO2)3, which persists in an applied field of 14 T. This is proposed to be a signature of quasi 1D behaviour in Nd(BO2)3 and Tb(BO2)3.
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Affiliation(s)
- P Mukherjee
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
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Bhattacharyya P, Gayathri N, Bhattacharya M, Gupta AD, Sarkar A, Dhar S, Mitra M, Mukherjee P. Proton irradiation studies on Al and Al5083 alloy. Radiat Phys Chem Oxf Engl 1993 2017. [DOI: 10.1016/j.radphyschem.2017.04.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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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Palacios EM, Martin AJ, Boss MA, Ezekiel F, Chang YS, Yuh EL, Vassar MJ, Schnyer DM, MacDonald CL, Crawford KL, Irimia A, Toga AW, Mukherjee P. Toward Precision and Reproducibility of Diffusion Tensor Imaging: A Multicenter Diffusion Phantom and Traveling Volunteer Study. AJNR Am J Neuroradiol 2016; 38:537-545. [PMID: 28007768 DOI: 10.3174/ajnr.a5025] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Accepted: 10/10/2016] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Precision medicine is an approach to disease diagnosis, treatment, and prevention that relies on quantitative biomarkers that minimize the variability of individual patient measurements. The aim of this study was to assess the intersite variability after harmonization of a high-angular-resolution 3T diffusion tensor imaging protocol across 13 scanners at the 11 academic medical centers participating in the Transforming Research and Clinical Knowledge in Traumatic Brain Injury multisite study. MATERIALS AND METHODS Diffusion MR imaging was acquired from a novel isotropic diffusion phantom developed at the National Institute of Standards and Technology and from the brain of a traveling volunteer on thirteen 3T MR imaging scanners representing 3 major vendors (GE Healthcare, Philips Healthcare, and Siemens). Means of the DTI parameters and their coefficients of variation across scanners were calculated for each DTI metric and white matter tract. RESULTS For the National Institute of Standards and Technology diffusion phantom, the coefficients of variation of the apparent diffusion coefficient across the 13 scanners was <3.8% for a range of diffusivities from 0.4 to 1.1 × 10-6 mm2/s. For the volunteer, the coefficients of variations across scanners of the 4 primary DTI metrics, each averaged over the entire white matter skeleton, were all <5%. In individual white matter tracts, large central pathways showed good reproducibility with the coefficients of variation consistently below 5%. However, smaller tracts showed more variability, with the coefficients of variation of some DTI metrics reaching 10%. CONCLUSIONS The results suggest the feasibility of standardizing DTI across 3T scanners from different MR imaging vendors in a large-scale neuroimaging research study.
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Affiliation(s)
- E M Palacios
- From the Departments of Radiology and Biomedical Imaging (E.M.P., A.J.M., F.E., Y.S.C., E.L.Y., P.M.)
| | - A J Martin
- From the Departments of Radiology and Biomedical Imaging (E.M.P., A.J.M., F.E., Y.S.C., E.L.Y., P.M.)
| | - M A Boss
- National Institute of Standards and Technology (M.A.B.), Boulder, Colorado
| | - F Ezekiel
- From the Departments of Radiology and Biomedical Imaging (E.M.P., A.J.M., F.E., Y.S.C., E.L.Y., P.M.)
| | - Y S Chang
- From the Departments of Radiology and Biomedical Imaging (E.M.P., A.J.M., F.E., Y.S.C., E.L.Y., P.M.)
| | - E L Yuh
- From the Departments of Radiology and Biomedical Imaging (E.M.P., A.J.M., F.E., Y.S.C., E.L.Y., P.M.).,Brain and Spinal Cord Injury Center (E.L.Y., M.J.V., P.M.), San Francisco General Hospital and Trauma Center, San Francisco, California
| | - M J Vassar
- Neurological Surgery and Brain and Spinal Injury Center (M.J.V.).,Brain and Spinal Cord Injury Center (E.L.Y., M.J.V., P.M.), San Francisco General Hospital and Trauma Center, San Francisco, California
| | - D M Schnyer
- Department of Psychology (D.M.S.), University of Texas, Austin, Texas
| | - C L MacDonald
- Department of Neurological Surgery (C.L.M.), University of Washington, Seattle, Washington
| | - K L Crawford
- Mark and Mary Stevens Neuroimaging and Informatics Institute (K.L.C., A.I., A.W.T.), University of Southern California, Los Angeles, California
| | - A Irimia
- Mark and Mary Stevens Neuroimaging and Informatics Institute (K.L.C., A.I., A.W.T.), University of Southern California, Los Angeles, California
| | - A W Toga
- Mark and Mary Stevens Neuroimaging and Informatics Institute (K.L.C., A.I., A.W.T.), University of Southern California, Los Angeles, California
| | - P Mukherjee
- From the Departments of Radiology and Biomedical Imaging (E.M.P., A.J.M., F.E., Y.S.C., E.L.Y., P.M.) .,Bioengineering and Therapeutic Sciences (P.M.), University of California, San Francisco, San Francisco, California.,Brain and Spinal Cord Injury Center (E.L.Y., M.J.V., P.M.), San Francisco General Hospital and Trauma Center, San Francisco, California
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Torumkuney D, Chaiwarith R, Reechaipichitkul W, Malatham K, Chareonphaibul V, Rodrigues C, Chitins DS, Dias M, Anandan S, Kanakapura S, Park YJ, Lee K, Lee H, Kim JY, Lee Y, Lee HK, Kim JH, Tan TY, Heng YX, Mukherjee P, Morrissey I. Results from the Survey of Antibiotic Resistance (SOAR) 2012-14 in Thailand, India, South Korea and Singapore. J Antimicrob Chemother 2016; 71 Suppl 1:i3-19. [PMID: 27048580 DOI: 10.1093/jac/dkw073] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES To provide susceptibility data for community-acquired respiratory tract isolates of Streptococcus pneumoniae, Streptococcus pyogenes, Haemophilus influenzae and Moraxella catarrhalis collected in 2012-14 from four Asian countries. METHODS MICs were determined using Etest(®) for all antibiotics except erythromycin, which was evaluated by disc diffusion. Susceptibility was assessed using CLSI, EUCAST and pharmacokinetic/pharmacodynamic (PK/PD) breakpoints. For macrolide/clindamycin interpretation, breakpoints were adjusted for incubation in CO2 where available. RESULTS Susceptibility of S. pneumoniae was generally lower in South Korea than in other countries. Penicillin susceptibility assessed using CLSI oral or EUCAST breakpoints ranged from 21.2% in South Korea to 63.8% in Singapore. In contrast, susceptibility using CLSI intravenous breakpoints was much higher, at 79% in South Korea and ∼95% or higher elsewhere. Macrolide susceptibility was ∼20% in South Korea and ∼50%-60% elsewhere. Among S. pyogenes isolates (India only), erythromycin susceptibility (∼20%) was lowest of the antibiotics tested. In H. influenzae antibiotic susceptibility was high except for ampicillin, where susceptibility ranged from 16.7% in South Korea to 91.1% in India. South Korea also had a high percentage (18.1%) of β-lactamase-negative ampicillin-resistant isolates. Amoxicillin/clavulanic acid susceptibility for each pathogen (PK/PD high dose) was between 93% and 100% in all countries except for H. influenzae in South Korea (62.5%). CONCLUSIONS Use of EUCAST versus CLSI breakpoints had profound differences for cefaclor, cefuroxime and ofloxacin, with EUCAST showing lower susceptibility. There was considerable variability in susceptibility among countries in the same region. Thus, continued surveillance is necessary to track future changes in antibiotic resistance.
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Affiliation(s)
- D Torumkuney
- GlaxoSmithKline, 980 Great West Road, Brentford, Middlesex TW8 9GS, UK
| | - R Chaiwarith
- Faculty of Medicine, Chiang Mai University, Maharaj Nakorn Chiang Mai Hospital, 110 Intavaroros Road, Tambon Sribhoom, Muang, Chiang Mai 50200, Thailand
| | - W Reechaipichitkul
- Khon Kaen University Faculty of Medicine, Srinagarind Hospital, 123 Mittraphap Highway, Tambol Naimuang, Muang District, Khon Kaen 40002, Thailand
| | - K Malatham
- Mahidol University Faculty of Medicine Ramathibodi Hospital, 270 Rama VI. Road, oong Phayathai, Ratchathewi, Bangkok 10400, Thailand
| | - V Chareonphaibul
- GlaxoSmithKline Thailand, 12th Floor, Wave Place, 55 Wireless Road, Lumpini, Patumwan, Bangkok 10330, Thailand
| | - C Rodrigues
- Hinduja Hospital and Medical Research Centre, Department of Microbiology, Veer Savarkar Marg, Mahim, Mumbai 400 016, India
| | - D S Chitins
- Choithram Hospital and Research Centre, Department of Microbiology, Manik Bagh Road, Indore 452 014 (M/P), India
| | - M Dias
- St John's Medical College Hospital, Department of Microbiology, Sarjapur Road, Bangalore 560 034, India
| | - S Anandan
- Christian Medical College, Department of Microbiology, Vellore 632 004, India
| | - S Kanakapura
- GlaxoSmithKline India, No. 5 Embassy Links, Cunningham (SRT) Road, Bangalore 560 052, India
| | - Y J Park
- The Catholic University of Korea, Seoul St Mary's Hospital, 222 Banpo-daero, Seocho-Gu, Seoul, South Korea
| | - K Lee
- Yonsei University College of Medicine, Severance Hospital, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, South Korea
| | - H Lee
- Yonsei University College of Medicine, Gangnam Severance Hospital, 211 Eonju-ro, Gangnam-gu, Seoul, South Korea
| | - J Y Kim
- Yonsei University College of Medicine, Gangnam Severance Hospital, 211 Eonju-ro, Gangnam-gu, Seoul, South Korea
| | - Y Lee
- Hanyang University Medical Center, 222-1, Wangsimni-ro, Seongdong-gu, Seoul, South Korea
| | - H K Lee
- The Catholic University of Korea, Uijongbu St Mary's Hospital, 271, Cheonbo-ro, Ukjeongbu-si, Gyeonggi-do, Korea
| | - J H Kim
- GlaxoSmithKline Korea, LS Yongsan Tower, 9th Floor, Hangang 191, Yongsan-gu, Seoul, South Korea
| | - T Y Tan
- Changi General Hospital Pte Ltd (Reg. No. 198904226R), 2 Simei Street 3, Singapore 529889
| | - Y X Heng
- Changi General Hospital Pte Ltd (Reg. No. 198904226R), 2 Simei Street 3, Singapore 529889
| | - P Mukherjee
- GlaxoSmithKline Singapore, (Reg. No. 198102938K), 150 Beach Road, No. 22-00 Gateway West, Singapore 189720
| | - I Morrissey
- IHMA Europe Sàrl, 9A Route de la Corniche, Epalinges 1066, Switzerland
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Chakraborty A, Patel J, Mukherjee P, Sethna K, Ghag G, Goswami J, Rathod C. 701. Comparison of oral hydration versus conventional intravenous hydration in patients receiving cisplatin in preventing nephrotoxicity. Eur J Surg Oncol 2016. [DOI: 10.1016/j.ejso.2016.06.360] [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: 10/21/2022] Open
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Torumkuney D, Chaiwarith R, Reechaipichitkul W, Malatham K, Chareonphaibul V, Rodrigues C, Chitkins DS, Dias M, Anandan S, Kanakapura S, Park YJ, Lee K, Lee H, Kim JY, Lee Y, Lee HK, Kim JH, Tan TY, Heng YX, Mukherjee P, Morrissey I. Results from the Survey of Antibiotic Resistance (SOAR) 2012-14 in Thailand, India, South Korea and Singapore. J Antimicrob Chemother 2016; 71:3628. [PMID: 27559118 PMCID: PMC7297303 DOI: 10.1093/jac/dkw332] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Nag D, Koley H, Sinha R, Mukherjee P, Sarkar C, Withey JH, Gachhui R. Immunization of Mice with a Live Transconjugant Shigella Hybrid Strain Induced Th1 and Th17 Cell-Mediated Immune Responses and Confirmed Passive Protection Against Heterologous Shigellae. Scand J Immunol 2016; 83:92-101. [PMID: 26478541 DOI: 10.1111/sji.12394] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 10/06/2015] [Indexed: 02/03/2023]
Abstract
An avirulent, live transconjugant Shigella hybrid (LTSHΔstx) strain was constructed in our earlier study by introducing a plasmid vector, pPR1347, into a Shiga toxin gene deleted Shigella dysenteriae 1. Three successive oral administrations of LTSHΔstx to female adult mice produced comprehensive passive heterologous protection in their offspring against challenge with wild-type shigellae. Production of NO and different cytokines such asIL-12p70, IL-1β and IL-23 in peritoneal mice macrophages indicated that LTSHΔstx induced innate and adaptive immunity in mice. Furthermore, production of IFN-γ, IL-10 and IL-17 in LTSH-primed splenic CD4+ T cell suggested that LTSHΔstx may induce Th1 and Th17 cell-mediated immune responses. Exponential increase of the serum IgG and IgA titre against whole shigellae was observed in immunized adult mice during and after the immunization with the highest peak on day 35. Antigen-specific sIgA was also determined from intestinal lavage of immunized mice. The stomach extracts of neonates from immunized mice, mainly containing mother's milk, contained significant levels of anti-LTSHΔstx immunoglobulin. These studies suggest that the LTSHΔstx could be a new live oral vaccine candidate against shigellosis in the near future.
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Affiliation(s)
- D Nag
- Division of Bacteriology, National Institute of Cholera and Enteric Diseases, Kolkata, India
| | - H Koley
- Division of Bacteriology, National Institute of Cholera and Enteric Diseases, Kolkata, India
| | - R Sinha
- Division of Bacteriology, National Institute of Cholera and Enteric Diseases, Kolkata, India
| | - P Mukherjee
- Division of Bacteriology, National Institute of Cholera and Enteric Diseases, Kolkata, India
| | - C Sarkar
- Division of Bacteriology, National Institute of Cholera and Enteric Diseases, Kolkata, India
| | - J H Withey
- Department of Immunology and Microbiology, Wayne State University School of Medicine, Detroit, MI, USA
| | - R Gachhui
- Department of Life Science and Technology, Jadavpur University, Kolkata, India
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Das Roy L, Zhou R, Dillon L, Moore LJ, Puri R, Marks JR, Lyerly HK, Mukherjee P. Abstract P4-09-16: A monoclonal antibody with exceptional specificity across major breast cancer subtypes. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p4-09-16] [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
Background: Breast cancer (BC) remains the second leading cause of cancer-related deaths for women in the United States and is recognized to be a heterogeneous disease. Advances in technologies such as whole genome sequencing are leading the way to precision medicine and the leading researchers are envisioning personalized therapies in the not too distant future. However, given the diversity of cancer cell populations, that remains a challenging task at best. The tumor form of MUC1 (designated tMUC1), a transmembrane glycoprotein, is aberrantly glycosylated and overexpressed in ∼95% of BC. We have developed an antibody (TAB004) that specifically recognizes tMUC1 across all major subtypes of BC and importantly does not recognize normal breast epithelia. This is a significant development in light of the challenges faced in treating triple negative BC.
Methods: A panel of thirty BC cell lines was obtained from ATCC. The following techniques were used to assess the specificity of TAB 004 to the major subtypes based on ER, PR and Her2 expression: 1) Flow cytometry to quantify membrane bound expression of tMUC1 using Cy7-conjugated TAB004; 2) Western blotting to detect molecular weight patterns of tMUC1 in whole cell lysate; 3) A TAB004 based GMP-grade ELISA kit to measure shed tMUC1 in the supernatant and 4) In vivo imaging of tumors in mice using TAB 004 conjugated to Indocyanine Green (ICG). Specificity and sensitivity was further confirmed using primary human serum and tissue samples from all major BC subtypes obtained from bio-repositories at Duke University Cancer Center, Fox Chase Cancer Center and Carolinas Health Care System. Shed tMUC1 in serum samples were tested using the TAB 004 ELISA kit and tissue sections were analyzed using immunohistochemical (IHC) staining with TAB 004 conjugated to HRP.
Results: 1) Flow cytometry data shows that TAB 004 recognized tMUC1 on all major BC subtypes: 25 out of 30 BC cell lines tested had higher expression than a normal epithelial breast cell line; 2) Western blotting also detected tMUC1 on all BC subtypes with distinct molecular weight patterns; 3) ELISA showed high levels of shed tMUC1 by most BC cells and correlated with bound/cytoplasmic levels. 4) In vivo imaging shows clear localization of TAB004-ICG to the tumors expressing tMUC1. Primary human breast cancer patient data shows that shed tMUC1 was detected in the serum obtained from all major BC subtypes and showed statistically significant differentiation from normal/benign. IHC results show strong tMUC1 expression in malignant tissue with excellent differentiation from adjacent normal tissue.
Conclusion: TAB004 antibody's extraordinary specificity across major BC subtypes has been confirmed with flow cytometry, western blotting, ELISA and Immunohistochemistry. A number of clinical applications are under development: (a) An ELISA test as a supplement to mammography for the early detection of BC in women with dense breasts; (b) serum monitoring during treatment and to detect disease recurrence; and, (c) targeted antibody-drug/antibody-imaging agent based therapies and imaging modalities particularly for triple negative BC.
Citation Format: Das Roy L, Zhou R, Dillon L, Moore LJ, Puri R, Marks JR, Lyerly HK, Mukherjee P. A monoclonal antibody with exceptional specificity across major breast cancer subtypes. [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 P4-09-16.
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Affiliation(s)
- L Das Roy
- OncoTab Inc, Charlotte, NC; University of North Carolina at Charlotte, Charlotte, NC; Duke University School of Medicine, Durham, NC
| | - R Zhou
- OncoTab Inc, Charlotte, NC; University of North Carolina at Charlotte, Charlotte, NC; Duke University School of Medicine, Durham, NC
| | - L Dillon
- OncoTab Inc, Charlotte, NC; University of North Carolina at Charlotte, Charlotte, NC; Duke University School of Medicine, Durham, NC
| | - LJ Moore
- OncoTab Inc, Charlotte, NC; University of North Carolina at Charlotte, Charlotte, NC; Duke University School of Medicine, Durham, NC
| | - R Puri
- OncoTab Inc, Charlotte, NC; University of North Carolina at Charlotte, Charlotte, NC; Duke University School of Medicine, Durham, NC
| | - JR Marks
- OncoTab Inc, Charlotte, NC; University of North Carolina at Charlotte, Charlotte, NC; Duke University School of Medicine, Durham, NC
| | - HK Lyerly
- OncoTab Inc, Charlotte, NC; University of North Carolina at Charlotte, Charlotte, NC; Duke University School of Medicine, Durham, NC
| | - P Mukherjee
- OncoTab Inc, Charlotte, NC; University of North Carolina at Charlotte, Charlotte, NC; Duke University School of Medicine, Durham, NC
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Berman JI, Chudnovskaya D, Blaskey L, Kuschner E, Mukherjee P, Buckner R, Nagarajan S, Chung WK, Sherr EH, Roberts TPL. Relationship between M100 Auditory Evoked Response and Auditory Radiation Microstructure in 16p11.2 Deletion and Duplication Carriers. AJNR Am J Neuroradiol 2016; 37:1178-84. [PMID: 26869473 DOI: 10.3174/ajnr.a4687] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 11/16/2015] [Indexed: 01/02/2023]
Abstract
BACKGROUND AND PURPOSE Deletion and duplication of chromosome 16p11.2 (BP4-BP5) have been associated with developmental disorders such as autism spectrum disorders, and deletion subjects exhibit a large (20-ms) delay of the auditory evoked cortical response as measured by magnetoencephalography (M100 latency). The purpose of this study was to use a multimodal approach to test whether changes in white matter microstructure are associated with delayed M100 latency. MATERIALS AND METHODS Thirty pediatric deletion carriers, 9 duplication carriers, and 39 control children were studied with both magnetoencephalography and diffusion MR imaging. The M100 latency and auditory system DTI measures were compared between groups and tested for correlation. RESULTS In controls, white matter diffusivity significantly correlated with the speed of the M100 response. However, the relationship between structure and function appeared uncoupled in 16p11.2 copy number variation carriers. The alterations to auditory system white matter microstructure in the 16p11.2 deletion only partially accounted for the 20-ms M100 delay. Although both duplication and deletion groups exhibit abnormal white matter microstructure, only the deletion group has delayed M100 latency. CONCLUSIONS These results indicate that gene dosage impacts factors other than white matter microstructure, which modulate conduction velocity.
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Affiliation(s)
- J I Berman
- From the Department of Radiology (J.I.B., D.C., L.B., E.K., T.P.L.R.), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania Department of Radiology (J.I.B., T.P.L.R.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - D Chudnovskaya
- From the Department of Radiology (J.I.B., D.C., L.B., E.K., T.P.L.R.), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - L Blaskey
- From the Department of Radiology (J.I.B., D.C., L.B., E.K., T.P.L.R.), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - E Kuschner
- From the Department of Radiology (J.I.B., D.C., L.B., E.K., T.P.L.R.), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | | | - R Buckner
- Department of Psychology (R.B.), Harvard University, Cambridge, Massachusetts
| | - S Nagarajan
- Departments of Pediatrics and Medicine (S.N., W.K.C.), Columbia University Medical Center, New York, New York
| | - W K Chung
- Departments of Pediatrics and Medicine (S.N., W.K.C.), Columbia University Medical Center, New York, New York
| | - E H Sherr
- Neurology (E.H.S.), University of California, San Francisco School of Medicine, San Francisco, California
| | - T P L Roberts
- From the Department of Radiology (J.I.B., D.C., L.B., E.K., T.P.L.R.), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania Department of Radiology (J.I.B., T.P.L.R.), Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
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Brown DJ, Mukherjee P, Pastras CJ, Gibson WP, Curthoys IS. Sensitivity of the cochlear nerve to acoustic and electrical stimulation months after a vestibular labyrinthectomy in guinea pigs. Hear Res 2016; 335:18-24. [PMID: 26873525 DOI: 10.1016/j.heares.2016.01.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 11/06/2015] [Revised: 01/21/2016] [Accepted: 01/27/2016] [Indexed: 10/22/2022]
Abstract
Single-sided deafness patients are now being considered candidates to receive a cochlear implant. With this, many people who have undergone a unilateral vestibular labyrinthectomy for the treatment of chronic vertigo are now being considered for cochlear implantation. There is still some concern regarding the potential efficacy of cochlear implants in these patients, where factors such as cochlear fibrosis or nerve degeneration following unilateral vestibular labyrinthectomy may preclude their use. Here, we have performed a unilateral vestibular labyrinthectomy in normally hearing guinea pigs, and allowed them to recover for either 6 weeks, or 10 months, before assessing morphological and functional changes related to cochlear implantation. Light sheet fluorescence microscopy was used to assess gross morphology throughout the entire ear. Whole nerve responses to acoustic, vibrational, or electrical stimuli were used as functional measures. Mild cellular infiltration was observed at 6 weeks, and to a lesser extent at 10 months after labyrinthectomy. Following labyrinthectomy, cochlear sensitivity to high-frequency acoustic tone-bursts was reduced by 16 ± 4 dB, vestibular sensitivity was almost entirely abolished, and electrical sensitivity was only mildly reduced. These results support recent clinical findings that patients who have received a vestibular labyrinthectomy may still benefit from a cochlear implant.
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Affiliation(s)
- D J Brown
- Sydney Medical School, The University of Sydney, Sydney, NSW, 2050, Australia.
| | - P Mukherjee
- Department of Otology, Royal Prince Alfred Hospital, Sydney, NSW, 2050, Australia
| | - C J Pastras
- Sydney Medical School, The University of Sydney, Sydney, NSW, 2050, Australia
| | - W P Gibson
- Department of Otology, Royal Prince Alfred Hospital, Sydney, NSW, 2050, Australia
| | - I S Curthoys
- Vestibular Research Laboratory, The University of Sydney, School of Psychology, Sydney, NSW, 2050, Australia
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Misra SK, Mukherjee P, Ohoka A, Schwartz-Duval AS, Tiwari S, Bhargava R, Pan D. Vibrational spectroscopy and imaging for concurrent cellular trafficking of co-localized doxorubicin and deuterated phospholipid vesicles. Nanoscale 2016; 8:2826-31. [PMID: 26763407 PMCID: PMC4868062 DOI: 10.1039/c5nr07975f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Simultaneous tracking of nanoparticles and encapsulated payload is of great importance and visualizing their activity is arduous. Here we use vibrational spectroscopy to study the in vitro tracking of co-localized lipid nanoparticles and encapsulated drug employing a model system derived from doxorubicin-encapsulated deuterated phospholipid (dodecyl phosphocholine-d38) single tailed phospholipid vesicles.
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Affiliation(s)
- S K Misra
- Departments of Bioengineering and Materials Science and Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Carle Foundation Hospital, 502 N. Busey St., Urbana, IL 61801, USA.
| | - P Mukherjee
- Department of Bioengineering, Electrical and Computer Engineering, Chemical and Biomolecular Engineering, Chemistry, and Mechanical Science and Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, 1304 W. Springfield Ave, Urbana, IL 61801, USA.
| | - A Ohoka
- Departments of Bioengineering and Materials Science and Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Carle Foundation Hospital, 502 N. Busey St., Urbana, IL 61801, USA.
| | - A S Schwartz-Duval
- Departments of Bioengineering and Materials Science and Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Carle Foundation Hospital, 502 N. Busey St., Urbana, IL 61801, USA.
| | - S Tiwari
- Department of Bioengineering, Electrical and Computer Engineering, Chemical and Biomolecular Engineering, Chemistry, and Mechanical Science and Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, 1304 W. Springfield Ave, Urbana, IL 61801, USA.
| | - R Bhargava
- Department of Bioengineering, Electrical and Computer Engineering, Chemical and Biomolecular Engineering, Chemistry, and Mechanical Science and Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, 1304 W. Springfield Ave, Urbana, IL 61801, USA.
| | - D Pan
- Departments of Bioengineering and Materials Science and Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Carle Foundation Hospital, 502 N. Busey St., Urbana, IL 61801, USA.
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Mondal RK, Dhibar S, Mukherjee P, Chattopadhyay AP, Saha R, Dey B. Selective picomolar level fluorometric sensing of the Cr(vi)-oxoanion in a water medium by a novel metal–organic complex. RSC Adv 2016. [DOI: 10.1039/c6ra12819j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Selective picomolar level fluorometric sensing of the Cr(vi)-oxoanion in a water medium has been achieved by a novel metal–organic complex.
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Affiliation(s)
- R. K. Mondal
- Department of Chemistry
- Visva-Bharati University
- Santiniketan-731235
- India
| | - S. Dhibar
- Department of Chemistry
- Visva-Bharati University
- Santiniketan-731235
- India
| | - P. Mukherjee
- Department of Chemistry
- Visva-Bharati University
- Santiniketan-731235
- India
| | | | - R. Saha
- Department of Physics
- Jadavpur University
- Kolkata-700032
- India
| | - B. Dey
- Department of Chemistry
- Visva-Bharati University
- Santiniketan-731235
- India
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Denmark DJ, Bradley J, Mukherjee D, Alonso J, Shakespeare S, Bernal N, Phan MH, Srikanth H, Witanachchi S, Mukherjee P. Remote triggering of thermoresponsive PNIPAM by iron oxide nanoparticles. RSC Adv 2016. [DOI: 10.1039/c5ra21617f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Thermoresponsive PNIPAN can be remotely triggered by embedded iron oxide nanoparticles under an AC field, and the transition temperature can be tuned by changing the ionic concentration.
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Affiliation(s)
- D. J. Denmark
- Department of Physics
- University of South Florida
- Tampa
- USA
| | - J. Bradley
- Department of Physics
- University of South Florida
- Tampa
- USA
- Department of Bioengineering
| | - D. Mukherjee
- Department of Physics
- University of South Florida
- Tampa
- USA
| | - J. Alonso
- Department of Physics
- University of South Florida
- Tampa
- USA
- BCMaterials
| | - S. Shakespeare
- Department of Physics
- University of South Florida
- Tampa
- USA
| | - N. Bernal
- Department of Physics
- University of South Florida
- Tampa
- USA
| | - M. H. Phan
- Department of Physics
- University of South Florida
- Tampa
- USA
| | - H. Srikanth
- Department of Physics
- University of South Florida
- Tampa
- USA
| | - S. Witanachchi
- Department of Physics
- University of South Florida
- Tampa
- USA
| | - P. Mukherjee
- Department of Physics
- University of South Florida
- Tampa
- USA
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Abstract
STEM images and elemental maps of Mn and Bi showing formation of complex core–shell and three-layer structure.
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Affiliation(s)
- P. Mukherjee
- Physics & Astronomy
- University of Nebraska
- Lincoln
- USA
- Nebraska Center for Materials and Nanoscience
| | - B. Balamurugan
- Physics & Astronomy
- University of Nebraska
- Lincoln
- USA
- Nebraska Center for Materials and Nanoscience
| | - J. E. Shield
- Nebraska Center for Materials and Nanoscience
- University of Nebraska
- Lincoln
- USA
- Mechanical & Materials Engineering
| | - D. J. Sellmyer
- Physics & Astronomy
- University of Nebraska
- Lincoln
- USA
- Nebraska Center for Materials and Nanoscience
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Nemati Z, Khurshid H, Alonso J, Phan MH, Mukherjee P, Srikanth H. From core/shell to hollow Fe/γ-Fe₂O₃ nanoparticles: evolution of the magnetic behavior. Nanotechnology 2015; 26:405705. [PMID: 26376675 DOI: 10.1088/0957-4484/26/40/405705] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
High quality Fe/γ-Fe2O3 core/shell, core/void/shell, and hollow nanoparticles with two different sizes of 8 and 12 nm were synthesized, and the effect of morphology, surface and finite-size effects on their magnetic properties including the exchange bias (EB) effect were systematically investigated. We find a general trend for both systems that as the morphology changes from core/shell to core/void/shell, the magnetization of the system decays and inter-particle interactions become weaker, while the effective anisotropy and the EB effect increase. The changes are more drastic when the nanoparticles become completely hollow. Noticeably, the morphological change from core/shell to hollow increases the mean blocking temperature for the 12 nm particles but decreases for the 8 nm particles. The low-temperature magnetic behavior of the 12 nm particles changes from a collective super-spin-glass system mediated by dipolar interactions for the core/shell nanoparticles to a frustrated cluster glass-like state for the shell nanograins in the hollow morphology. On the other hand for the 8 nm nanoparticles core/shell and hollow particles the magnetic behavior is more similar, and a conventional spin glass-like transition is obtained at low temperatures. In the case of the hollow nanoparticles, the coupling between the inner and outer spin layers in the shell gives rise to an enhanced EB effect, which increases with increasing shell thickness. This indicates that the morphology of the shell plays a crucial role in this kind of exchange-biased systems.
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Affiliation(s)
- Z Nemati
- Department of Physics, University of South Florida, Tampa, FL 33620, USA
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Ghosh SB, Bhattacharya K, Nayak S, Mukherjee P, Salaskar D, Kale SP. Identification of different species of Bacillus isolated from Nisargruna Biogas Plant by FTIR, UV-Vis and NIR spectroscopy. Spectrochim Acta A Mol Biomol Spectrosc 2015; 148:420-426. [PMID: 25930088 DOI: 10.1016/j.saa.2015.03.104] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 03/13/2015] [Accepted: 03/27/2015] [Indexed: 06/04/2023]
Abstract
Definitive identification of microorganisms, including pathogenic and non-pathogenic bacteria, is extremely important for a wide variety of applications including food safety, environmental studies, bio-terrorism threats, microbial forensics, criminal investigations and above all disease diagnosis. Although extremely powerful techniques such as those based on PCR and microarrays exist, they require sophisticated laboratory facilities along with elaborate sample preparation by trained researchers. Among different spectroscopic techniques, FTIR was used in the 1980s and 90s for bacterial identification. In the present study five species of Bacillus were isolated from the aerobic predigester chamber of Nisargruna Biogas Plant (NBP) and were identified to the species level by biochemical and molecular biological (16S ribosomal DNA sequence) methods. Those organisms were further checked by solid state spectroscopic absorbance measurements using a wide range of electromagnetic radiation (wavelength 200 nm to 25,000 nm) encompassing UV, visible, near Infrared and Infrared regions. UV-Vis and NIR spectroscopy was performed on dried bacterial cell suspension on silicon wafer in specular mode while FTIR was performed on KBr pellets containing the bacterial cells. Consistent and reproducible species specific spectra were obtained and sensitivity up to a level of 1000 cells was observed in FTIR with a DTGS detector. This clearly shows the potential of solid state spectroscopic techniques for simple, easy to implement, reliable and sensitive detection of bacteria from environmental samples.
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Affiliation(s)
- S B Ghosh
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - K Bhattacharya
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - S Nayak
- Karmaveer Bhaurao Patil College, Sector 10, Vashi, New Mumbai 400703, India
| | - P Mukherjee
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - D Salaskar
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - S P Kale
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
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Mandal SK, Ray DP, Mukherjee P. Study of variations of suprascapular notch. J ANAT SOC INDIA 2015. [DOI: 10.1016/j.jasi.2015.07.302] [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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Wintermark M, Coombs L, Druzgal TJ, Field AS, Filippi CG, Hicks R, Horton R, Lui YW, Law M, Mukherjee P, Norbash A, Riedy G, Sanelli PC, Stone JR, Sze G, Tilkin M, Whitlow CT, Wilde EA, York G, Provenzale JM. Traumatic brain injury imaging research roadmap. AJNR Am J Neuroradiol 2015; 36:E12-23. [PMID: 25655872 DOI: 10.3174/ajnr.a4254] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The past decade has seen impressive advances in the types of neuroimaging information that can be acquired in patients with traumatic brain injury. However, despite this increase in information, understanding of the contribution of this information to prognostic accuracy and treatment pathways for patients is limited. Available techniques often allow us to infer the presence of microscopic changes indicative of alterations in physiology and function in brain tissue. However, because histologic confirmation is typically lacking, conclusions reached by using these techniques remain solely inferential in almost all cases. Hence, a need exists for validation of these techniques by using data from large population samples that are obtained in a uniform manner, analyzed according to well-accepted procedures, and correlated with closely monitored clinical outcomes. At present, many of these approaches remain confined to population-based research rather than diagnosis at an individual level, particularly with regard to traumatic brain injury that is mild or moderate in degree. A need and a priority exist for patient-centered tools that will allow advanced neuroimaging tools to be brought into clinical settings. One barrier to developing these tools is a lack of an age-, sex-, and comorbidities-stratified, sequence-specific, reference imaging data base that could provide a clear understanding of normal variations across populations. Such a data base would provide researchers and clinicians with the information necessary to develop computational tools for the patient-based interpretation of advanced neuroimaging studies in the clinical setting. The recent "Joint ASNR-ACR HII-ASFNR TBI Workshop: Bringing Advanced Neuroimaging for Traumatic Brain Injury into the Clinic" on May 23, 2014, in Montreal, Quebec, Canada, brought together neuroradiologists, neurologists, psychiatrists, neuropsychologists, neuroimaging scientists, members of the National Institute of Neurologic Disorders and Stroke, industry representatives, and other traumatic brain injury stakeholders to attempt to reach consensus on issues related to and develop consensus recommendations in terms of creating both a well-characterized normative data base of comprehensive imaging and ancillary data to serve as a reference for tools that will allow interpretation of advanced neuroimaging tests at an individual level of a patient with traumatic brain injury. The workshop involved discussions concerning the following: 1) designation of the policies and infrastructure needed for a normative data base, 2) principles for characterizing normal control subjects, and 3) standardizing research neuroimaging protocols for traumatic brain injury. The present article summarizes these recommendations and examines practical steps to achieve them.
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Affiliation(s)
- M Wintermark
- From the Neuroradiology Division (M.W.), Department of Radiology, Stanford University, Stanford, California
| | - L Coombs
- American College of Radiology (L.C., M.T., R. Horton), Reston, Virginia
| | | | - A S Field
- Neuroradiology Section (A.S.F.), Department of Radiology, University of Wisconsin, Madison, Wisconsin
| | - C G Filippi
- Department of Radiology (C.G.F.), Columbia University, New York, New York Department of Radiology (C.G.F., P.C.S.), North Shore-Long Island Jewish Health System, Manhasset, New York
| | - R Hicks
- One Mind (R. Hicks), Seattle, Washington
| | - R Horton
- American College of Radiology (L.C., M.T., R. Horton), Reston, Virginia
| | - Y W Lui
- Neuroradiology Division (Y.W.L.), Department of Radiology, NYU School of Medicine, New York, New York
| | - M Law
- Neuroradiology Section (M.L.), Department of Radiology, University of Southern California, Los Angeles, California
| | - P Mukherjee
- Neuroradiology Section (P.M.), Department of Radiology, University of California, San Francisco, San Francisco, California
| | - A Norbash
- Department of Radiology (A.N.), Boston University School of Medicine, Boston, Massachusetts
| | - G Riedy
- National Intrepid Center of Excellence (G.R.), Washington, DC
| | - P C Sanelli
- Department of Radiology (C.G.F., P.C.S.), North Shore-Long Island Jewish Health System, Manhasset, New York
| | - J R Stone
- Departments of Radiology (T.J.D., J.R.S.) Medical Imaging and Neurological Surgery (J.R.S.), University of Virginia, Charlottesville, Virginia
| | - G Sze
- Neuroradiology Section (G.S.), Department of Radiology, Yale University, New Haven, Connecticut
| | - M Tilkin
- American College of Radiology (L.C., M.T., R. Horton), Reston, Virginia
| | - C T Whitlow
- Department of Radiology-Neuroradiology and Translational Science Institute (C.T.W.), Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - E A Wilde
- Departments of Physical Medicine and Rehabilitation, Neurology, and Radiology (E.A.W.), Baylor College of Medicine, Houston, Texas
| | - G York
- San Antonio Military Medical Center (G.Y.), San Antonio, Texas
| | - J M Provenzale
- Department of Radiology (J.M.P.), Duke University Medical Center, Durham, North Carolina
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Yu Y, Mukherjee P, Tian Y, Li XZ, Shield JE, Sellmyer DJ. Direct chemical synthesis of L1(0)-FePtAu nanoparticles with high coercivity. Nanoscale 2014; 6:12050-12055. [PMID: 25189100 DOI: 10.1039/c4nr02345e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report a facile synthesis of hard magnetic L10-FePtAu nanoparticles by coreduction of Fe(acac)3, Pt(acac)2 (acac = acetylacetonate) and gold acetate in oleylamine. In the current reaction condition, NP sizes are controlled to be 5.5 to 11.0 nm by changing the amount of Au doping. When the Au composition in the NPs is higher than 14%, the hard magnetic NPs are directly obtained without any annealing. The highest coercivity of 12.15 kOe at room temperature could be achieved for the NPs with 32% Au doping, which is much higher than the coercivities reported by the previous studies on solution-synthesized FePt nanoparticles. The reported one-pot synthesis of L10-FePtAu NPs may help to build superstrong magnets for magnetic or data-storage applications.
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Affiliation(s)
- Yongsheng Yu
- Nebraska Center for Materials and Nanoscience & Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln, NE 68588, USA.
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Mukhopadhyay S, Jana S, Roy MK, Chatterjee A, Sarkar A, Mazumdar S, Mukherjee P, Mukhopadhyay J. Lupus cystitis: An unusual presentation of systemic lupus erythematosus. Indian J Nephrol 2014; 24:308-11. [PMID: 25249721 PMCID: PMC4165056 DOI: 10.4103/0971-4065.133010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Lupus cystitis is a rare complication of systemic lupus erythematosus (SLE) and occurs in association with gastrointestinal symptoms. This rare disorder has been reported mainly from Japan. We report a 20 year old female who diagnosed as having SLE associated with paralytic ileus and chronic interstitial cystitis. Treatment with intravenous methylprednisolone, cyclophosphamide pulse therapy followed by oral prednisolone and azathioprine led to amelioration of manifestations. Later she developed lupus nephritis which was treated with mycophenolate mofetil.
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Affiliation(s)
- S Mukhopadhyay
- Department of Internal Medicine, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
| | - S Jana
- Department of Internal Medicine, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
| | - M K Roy
- Department of Internal Medicine, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
| | - A Chatterjee
- Department of Internal Medicine, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
| | - A Sarkar
- Department of Internal Medicine, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
| | - S Mazumdar
- Department of Internal Medicine, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
| | - P Mukherjee
- Department of Internal Medicine, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
| | - J Mukhopadhyay
- Department of Internal Medicine, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
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Mukherjee P. Notizen: Studies on the Recovery of X-Irradiated Bacteria. Zeitschrift für Naturforschung B 2014. [DOI: 10.1515/znb-1971-1244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- P. Mukherjee
- Biophysisa Division, Saha Institute of Nuclear Physics 37, Belgachia Road, Calcutta, India
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Boss M, Chenevert T, Waterton J, Morris D, Ragheb H, Jackson A, deSouza N, Collins D, van Beers B, Garteiser P, Doblas S, Persigehl T, Hedderich D, Martin A, Mukherjee P, Keenan K, Russek S, Jackson E, Zahlmann G. TU-C-12A-08: Thermally-Stabilized Isotropic Diffusion Phantom for Multisite Assessment of Apparent Diffusion Coefficient Reproducibilty. Med Phys 2014. [DOI: 10.1118/1.4889298] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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48
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Mukherjee P, Hazra LN. Self-similarity in radial Walsh filters and axial intensity distributions in the far-field diffraction pattern. J Opt Soc Am A Opt Image Sci Vis 2014; 31:379-387. [PMID: 24562037 DOI: 10.1364/josaa.31.000379] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Pupil plane filtering by radial Walsh filters is a convenient technique for tailoring the axial intensity distribution near the focal plane of a rotationally symmetric imaging system. Radial Walsh filters, derived from radial Walsh functions, form a set of orthogonal phase filters that take on values either 0 or π phase, corresponding to +1 or -1 values of the radial Walsh functions over prespecified annular regions of the circular filter. Order of these filters is given by the number of zero-crossings, or equivalently phase transitions within the domain over which the set is defined. In general, radial Walsh filters are binary phase zone plates, each of them demonstrating distinct focusing characteristics. The set of radial Walsh filters can be classified into distinct groups, where the members of each group possess self-similar structures. Self-similarity can also be observed in the corresponding axial intensity distributions. These observations provide valuable clues in tackling the inverse problem of synthesis of phase filter in accordance with prespecified axial intensity distributions. This paper reports our observations on self-similarity in radial Walsh filters of various orders and corresponding axial intensity distributions.
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Sze G, Wintermark M, Law M, Mukherjee P, Hess C. Human neuroimaging and the BRAIN initiative: a joint statement from the ASNR and ASFNR, with the support of the RSNA, ACR, ARR, and ISMRM. AJNR Am J Neuroradiol 2014; 35:213-4. [PMID: 24436343 DOI: 10.3174/ajnr.a3874] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Wang Y, Liu K, Mukherjee P, Hines DA, Santra P, Shen HY, Kamat P, Waldeck DH. Driving charge separation for hybrid solar cells: photo-induced hole transfer in conjugated copolymer and semiconductor nanoparticle assemblies. Phys Chem Chem Phys 2014; 16:5066-70. [DOI: 10.1039/c3cp55210a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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