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Finkel Z, Esteban F, Rodriguez B, Clifford T, Joseph A, Alostaz H, Dalmia M, Gutierrez J, Tamasi MJ, Zhang SM, Simone J, Petekci H, Nath S, Escott M, Garg SK, Gormley AJ, Kumar S, Gulati S, Cai L. AAV6 mediated Gsx1 expression in neural stem progenitor cells promotes neurogenesis and restores locomotor function after contusion spinal cord injury. Neurotherapeutics 2024:e00362. [PMID: 38664194 DOI: 10.1016/j.neurot.2024.e00362] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 03/29/2024] [Accepted: 04/11/2024] [Indexed: 05/05/2024] Open
Abstract
Genomic screened homeobox 1 (Gsx1 or Gsh1) is a neurogenic transcription factor required for the generation of excitatory and inhibitory interneurons during spinal cord development. In the adult, lentivirus (LV) mediated Gsx1 expression promotes neural regeneration and functional locomotor recovery in a mouse model of lateral hemisection spinal cord injury (SCI). The LV delivery method is clinically unsafe due to insertional mutations to the host DNA. In addition, the most common clinical case of SCI is contusion/compression. In this study, we identify that adeno-associated virus serotype 6 (AAV6) preferentially infects neural stem/progenitor cells (NSPCs) in the injured spinal cord. Using a rat model of contusion SCI, we demonstrate that AAV6 mediated Gsx1 expression promotes neurogenesis, increases the number of neuroblasts/immature neurons, restores excitatory/inhibitory neuron balance and serotonergic neuronal activity through the lesion core, and promotes locomotor functional recovery. Our findings support that AAV6 preferentially targets NSPCs for gene delivery and confirmed Gsx1 efficacy in clinically relevant rat model of contusion SCI.
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Affiliation(s)
- Zachary Finkel
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA
| | - Fatima Esteban
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA
| | - Brianna Rodriguez
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA
| | - Tanner Clifford
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA
| | - Adelina Joseph
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA
| | - Hani Alostaz
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA
| | - Mridul Dalmia
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA
| | - Juan Gutierrez
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA; University of California, Santa Barbara, CA 93106, USA
| | - Matthew J Tamasi
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA
| | - Samuel Ming Zhang
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA
| | - Jonah Simone
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA
| | - Hafize Petekci
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA
| | - Susmita Nath
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA
| | - Miriam Escott
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA
| | - Shivam Kumar Garg
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA
| | - Adam J Gormley
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA
| | - Suneel Kumar
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA
| | - Sonia Gulati
- NeuroNovus Therapeutics Inc., 135 E 57th St., New York, NY 10022, USA
| | - Li Cai
- Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA; NeuroNovus Therapeutics Inc., 135 E 57th St., New York, NY 10022, USA.
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Gulati S, Tripathy S, Gupta T, Gaba S. Facial nerve communication with ansa cervicalis - An unusual anatomical variation. J Postgrad Med 2024; 70:60-63. [PMID: 38037772 PMCID: PMC10947731 DOI: 10.4103/jpgm.jpgm_454_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 08/03/2023] [Accepted: 08/14/2023] [Indexed: 12/02/2023] Open
Abstract
Neural connections of the seventh cranial nerve with its neighboring nerves are common and well documented; however, communication with ansa cervicalis is as yet unknown. We present a case with such a connection found during cadaveric dissection, with hitherto unknown consequences. In this specimen, after giving the marginal mandibular and cervical branches, the cervicofacial division continued distally to communicate with the distal loop of ansa cervicalis. Presence of such connection may result in facial muscle paralysis on injury to the ansa or strap muscle paralysis on injury to the facial nerve, depending on the direction of nerve fibers. Such unusual connections bring to light the need for extreme care during surgeries in the neck to safeguard any such connections and when using the ansa as donor.
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Affiliation(s)
- S Gulati
- Department of Plastic Surgery, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - S Tripathy
- Department of Plastic Surgery, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - T Gupta
- Department of Anatomy, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - S Gaba
- Department of Plastic Surgery, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Garcia DPC, Carvalho AC, Gulati S, Ballecer C, Neto CS. Bone anchor as fixation method for abdominal wall reconstruction. A case report about a ten times recurred inguinal hernia. Int J Surg Case Rep 2023; 111:108730. [PMID: 37699285 PMCID: PMC10498188 DOI: 10.1016/j.ijscr.2023.108730] [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: 08/01/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 09/14/2023] Open
Abstract
INTRODUCTION While the use of bone anchor fixation for abdominal wall reconstruction for supra-pubic incisional hernia is well described (Yee et al., 2008 [1]), we show in this case report, written in line with the SCARE criteria (Agha et al., 2020 [2]), a novel use of this tool as an adjunct in the repair of a ten time recurrent inguinal hernia. CASE REPORT A 65 years old multiparous, diabetic non-obese female, with previous abdominoplasty was submitted for left inguinal hernia for ten times, between multiples complications between infection, more than one mesh excision by anterior approach and laparoscopic approach. The wide range of procedures culminated in a destruction of the abdominal wall, making it impossible for a usual fixation of mesh in the region. Therefore, a multidisciplinary approach was planned for the patient with a bone anchor as a mesh fixation method. With a year follow up we did not observe a local hernia recurrence. CLINICAL DISCUSSION Hernia itself is a multifactorial disease. As a anatomical defect, surgery is the only effective treatment. Our report brings a novel approach to a challenging case with many previous unsuccessful applications of conventional surgeries. Hence, we stimulate the multidisciplinary discussion for enhancing post operatory outcomes and a better point of care for the patient.
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Affiliation(s)
- D P C Garcia
- Anatomy and Surgery Department in Faculdade de Ciências Médicas de Minas Gerais, General Surgery at Hospital Felício Rocho, Belo Horizonte, MG, Brazil
| | - A C Carvalho
- General Surgery at Hospital Felício Rocho, Belo Horizonte, MG, Brazil.
| | - S Gulati
- Creighton University School of Medicine, Phoenix, United States of America
| | - C Ballecer
- Surgery at Creighton University School of Medicine, Phoenix, United States of America
| | - C S Neto
- General Surgery and Trauma Surgery at Hospital Joao XXIII, Belo Horizonte, MG, Brazil
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Slaughter M, Ahmed M, Allen S, Answini G, Bartoli C, Dhingra R, Dowling R, Egnaczyk G, Griffith B, Gulati S, Hall S, Jeng E, Joseph S, Kiernan M, Lozonschi L, Mahr C, Meyer D, Ono M, Ravichandran A, Shafii A, Soleimani B, Toyoda Y, Yarboro L. Initial Safety Cohort Analysis: Prospective Multi-Center Randomized Study for Evaluating The EVAHEART®2 Left Ventricular Assist System (The COMPETENCE Trial). J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.193] [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: 04/05/2023] Open
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Bakouny Z, Grover P, Labaki C, Awosika J, Gulati S, Hsu CY, Bilen M, Eton O, Fecher L, Hwang C, Khan H, McKay R, Ruiz E, Weissmann L, Thompson M, Shah D, Warner J, Shyr Y, Choueiri T, Wise-Draper T. 502P Association of immunotherapy and immunosuppression with severe COVID-19 disease in patients with cancer. Ann Oncol 2022. [PMCID: PMC9472565 DOI: 10.1016/j.annonc.2022.07.630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Medic I, Gulati S, Lenz HJ, Mahalingam D, Thomas J, Luo J, Zha J, DePaoli A, Tran-Muchowski C, Tseng C, Lieu H. 1402P Initial results of a cohort of advanced prostate cancer patients in a phase Ia study of NGM120, a first-in-class anti-GDNF family receptor alpha like (GFRAL) antibody. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1888] [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: 11/01/2022] Open
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Sirovica LV, Ritter C, Hendricks J, Weary DM, Gulati S, von Keyserlingk MAG. Public attitude toward and perceptions of dairy cattle welfare in cow-calf management systems differing in type of social and maternal contact. J Dairy Sci 2022; 105:3248-3268. [PMID: 35094864 DOI: 10.3168/jds.2021-21344] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 09/26/2021] [Accepted: 11/29/2021] [Indexed: 11/19/2022]
Abstract
Early cow-calf separation followed by individual housing of calves is standard practice on dairy farms. However, a growing body of evidence suggests that as awareness grows the public will oppose these practices, which could compromise the dairy industry's social license. Despite disagreement among different stakeholders over weighting and evaluations of effects of early separation (e.g., distress response, disease risk), recent systematic reviews indicate that there is little scientific evidence supporting this practice. The acceptability of alternative cow-calf management systems is unknown. We used a mixed methods survey with a convenience sample of 307 Canadians plus a representative sample of 1,487 Americans to investigate perceptions of these systems, examining the effects of providing social or foster cow contact following early separation or not separating cow-calf pairs. Attitudes and perceptions of animal welfare were more positive (on a 7-point scale where 1 is most negative, 7 is most positive, and 4 is a neutral midpoint) toward the system where calves were not separated from the cow (mean ± SE; 5.8 ± 0.07; 5.7 ± 0.07), compared with systems in which the calf was separated and individually housed (3.6 ± 0.07; 3.4 ± 0.07), separated and group housed (3.7 ± 0.07; 3.4 ± 0.07), or separated and kept with a foster cow (3.8 ± 0.07; 3.6 ± 0.07). Participants were consistent in their attitudes toward and perceptions of animal welfare within the system, suggesting that participants took a holistic and value-oriented approach to cow-calf management regarding separation. These results, in combination with many participants' concern for the importance of the mother cow-calf relationship and perceptions that severing of this bond was a breach of standard of care, suggest that there may be low acceptance of any cow-calf management system involving early separation as such systems are unlikely to resonate with underlying values.
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Affiliation(s)
- L V Sirovica
- Animal Welfare Program, Faculty of Land and Food Systems, University of British Columbia, 2357 Main Mall, Vancouver, BC, V6T 1Z6, Canada
| | - C Ritter
- Animal Welfare Program, Faculty of Land and Food Systems, University of British Columbia, 2357 Main Mall, Vancouver, BC, V6T 1Z6, Canada; Atlantic Veterinary College, University of Prince Edward Island, 5550 University Ave., Charlottetown, PE, C1A43, Canada
| | - J Hendricks
- Animal Welfare Program, Faculty of Land and Food Systems, University of British Columbia, 2357 Main Mall, Vancouver, BC, V6T 1Z6, Canada
| | - D M Weary
- Animal Welfare Program, Faculty of Land and Food Systems, University of British Columbia, 2357 Main Mall, Vancouver, BC, V6T 1Z6, Canada
| | - S Gulati
- Wildlife and Conservation Economics Laboratory, Faculty of Land and Food Systems, University of British Columbia, 2357 Main Mall, Vancouver, BC, V6T 1Z6, Canada
| | - M A G von Keyserlingk
- Animal Welfare Program, Faculty of Land and Food Systems, University of British Columbia, 2357 Main Mall, Vancouver, BC, V6T 1Z6, Canada.
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Carneiro B, Yin J, Soliman L, De Souza A, Golijanin D, Mega A, Coelho Barata P, Gulati S, Wei S, Geynisman D, Magee D, Korn W, Abuali I, Heath E, Ryan C, Bertone P, El-Deiry W. 632P Differential transcriptomic profiling of BCL2-related genes in primary tumor (PT) and metastatic sites (MS) of prostate cancer (PCa). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1145] [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] Open
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9
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Emmanuel A, Haji A, Gulati S, Moorhead J, Papagrigoriadis S, Hayee B, Diaz-Cano S. Histopathological features for coexistent invasive cancer in large colorectal adenomatous polyps. BJS Open 2021; 5:6299994. [PMID: 34131706 PMCID: PMC8205855 DOI: 10.1093/bjsopen/zraa053] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 11/20/2020] [Indexed: 11/16/2022] Open
Abstract
Background Histopathological features associated with coexistent invasive adenocarcinoma in large colorectal adenomas have not been described. This study aimed to determine the association of histopathological features in areas of low-grade dysplasia with coexistent invasive adenocarcinoma. Methods High-grade lesions (containing high-grade dysplasia or adenocarcinoma) from a cohort of large (at least 20 mm) colorectal adenomas removed by endoscopic resection were subjected to detailed histopathological analysis. The histopathological features in low-grade areas with coexistent adenocarcinoma were reviewed and their diagnostic performance was evaluated. Results Seventy-four high-grade lesions from 401 endoscopic resections of large adenomas were included. In the low-grade dysplastic areas, a coexistent invasive adenocarcinoma was associated significantly with a cribriform or trabecular growth pattern (P < 0.001), high nuclear grade (P < 0.001), multifocal intraluminal necrosis (P < 0.001), atypical mitotic figures (P = 0.006), infiltrative lesion edges (P < 0.001), a broad fibrous band (P = 0.001), ulceration (P < 0.001), expansile nodules (P < 0.001) and an extensive tumour-infiltrating lymphocyte pattern (P = 0.04). Lesions with coexistent invasive adenocarcinoma harboured at least one of these features. The area under the receiver operating characteristic curve (AUROC) for coexistent invasive adenocarcinoma, using frequencies of adverse histopathological factors in low-grade areas, was 0.92. The presence of two or more of these adverse histopathological features in low-grade areas had a sensitivity of 86 per cent and a specificity of 84 per cent for coexistent invasive adenocarcinoma. Conclusion Several histopathological features in low-grade dysplastic areas of adenomas could be predictive of coexistent adenocarcinoma.
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Affiliation(s)
- A Emmanuel
- Department of Colorectal Surgery and King's Institute of Therapeutic Endoscopy, King's College Hospital NHS Foundation Trust, London, UK
| | - A Haji
- Department of Colorectal Surgery and King's Institute of Therapeutic Endoscopy, King's College Hospital NHS Foundation Trust, London, UK
| | - S Gulati
- King's Institute of Therapeutic Endoscopy, King's College Hospital NHS Foundation Trust, London, UK
| | - J Moorhead
- Department of Histopathology, King's College Hospital NHS Foundation Trust, London, UK
| | - S Papagrigoriadis
- Department of Colorectal Surgery and King's Institute of Therapeutic Endoscopy, King's College Hospital NHS Foundation Trust, London, UK
| | - B Hayee
- King's Institute of Therapeutic Endoscopy, King's College Hospital NHS Foundation Trust, London, UK
| | - S Diaz-Cano
- Department of Histopathology, King's College Hospital NHS Foundation Trust, London, UK
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Grivas P, Khaki AR, Wise-Draper TM, French B, Hennessy C, Hsu CY, Shyr Y, Li X, Choueiri TK, Painter CA, Peters S, Rini BI, Thompson MA, Mishra S, Rivera DR, Acoba JD, Abidi MZ, Bakouny Z, Bashir B, Bekaii-Saab T, Berg S, Bernicker EH, Bilen MA, Bindal P, Bishnoi R, Bouganim N, Bowles DW, Cabal A, Caimi PF, Chism DD, Crowell J, Curran C, Desai A, Dixon B, Doroshow DB, Durbin EB, Elkrief A, Farmakiotis D, Fazio A, Fecher LA, Flora DB, Friese CR, Fu J, Gadgeel SM, Galsky MD, Gill DM, Glover MJ, Goyal S, Grover P, Gulati S, Gupta S, Halabi S, Halfdanarson TR, Halmos B, Hausrath DJ, Hawley JE, Hsu E, Huynh-Le M, Hwang C, Jani C, Jayaraj A, Johnson DB, Kasi A, Khan H, Koshkin VS, Kuderer NM, Kwon DH, Lammers PE, Li A, Loaiza-Bonilla A, Low CA, Lustberg MB, Lyman GH, McKay RR, McNair C, Menon H, Mesa RA, Mico V, Mundt D, Nagaraj G, Nakasone ES, Nakayama J, Nizam A, Nock NL, Park C, Patel JM, Patel KG, Peddi P, Pennell NA, Piper-Vallillo AJ, Puc M, Ravindranathan D, Reeves ME, Reuben DY, Rosenstein L, Rosovsky RP, Rubinstein SM, Salazar M, Schmidt AL, Schwartz GK, Shah MR, Shah SA, Shah C, Shaya JA, Singh SRK, Smits M, Stockerl-Goldstein KE, Stover DG, Streckfuss M, Subbiah S, Tachiki L, Tadesse E, Thakkar A, Tucker MD, Verma AK, Vinh DC, Weiss M, Wu JT, Wulff-Burchfield E, Xie Z, Yu PP, Zhang T, Zhou AY, Zhu H, Zubiri L, Shah DP, Warner JL, Lopes G. Association of clinical factors and recent anticancer therapy with COVID-19 severity among patients with cancer: a report from the COVID-19 and Cancer Consortium. Ann Oncol 2021; 32:787-800. [PMID: 33746047 PMCID: PMC7972830 DOI: 10.1016/j.annonc.2021.02.024] [Citation(s) in RCA: 202] [Impact Index Per Article: 67.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/18/2021] [Accepted: 02/28/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Patients with cancer may be at high risk of adverse outcomes from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. We analyzed a cohort of patients with cancer and coronavirus 2019 (COVID-19) reported to the COVID-19 and Cancer Consortium (CCC19) to identify prognostic clinical factors, including laboratory measurements and anticancer therapies. PATIENTS AND METHODS Patients with active or historical cancer and a laboratory-confirmed SARS-CoV-2 diagnosis recorded between 17 March and 18 November 2020 were included. The primary outcome was COVID-19 severity measured on an ordinal scale (uncomplicated, hospitalized, admitted to intensive care unit, mechanically ventilated, died within 30 days). Multivariable regression models included demographics, cancer status, anticancer therapy and timing, COVID-19-directed therapies, and laboratory measurements (among hospitalized patients). RESULTS A total of 4966 patients were included (median age 66 years, 51% female, 50% non-Hispanic white); 2872 (58%) were hospitalized and 695 (14%) died; 61% had cancer that was present, diagnosed, or treated within the year prior to COVID-19 diagnosis. Older age, male sex, obesity, cardiovascular and pulmonary comorbidities, renal disease, diabetes mellitus, non-Hispanic black race, Hispanic ethnicity, worse Eastern Cooperative Oncology Group performance status, recent cytotoxic chemotherapy, and hematologic malignancy were associated with higher COVID-19 severity. Among hospitalized patients, low or high absolute lymphocyte count; high absolute neutrophil count; low platelet count; abnormal creatinine; troponin; lactate dehydrogenase; and C-reactive protein were associated with higher COVID-19 severity. Patients diagnosed early in the COVID-19 pandemic (January-April 2020) had worse outcomes than those diagnosed later. Specific anticancer therapies (e.g. R-CHOP, platinum combined with etoposide, and DNA methyltransferase inhibitors) were associated with high 30-day all-cause mortality. CONCLUSIONS Clinical factors (e.g. older age, hematological malignancy, recent chemotherapy) and laboratory measurements were associated with poor outcomes among patients with cancer and COVID-19. Although further studies are needed, caution may be required in utilizing particular anticancer therapies. CLINICAL TRIAL IDENTIFIER NCT04354701.
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Affiliation(s)
- P Grivas
- University of Washington/Fred Hutchinson Cancer Research Center/Seattle Cancer Care Alliance, Seattle, USA.
| | - A R Khaki
- University of Washington/Fred Hutchinson Cancer Research Center/Seattle Cancer Care Alliance, Seattle, USA; Stanford University, Stanford, USA
| | | | - B French
- Vanderbilt University Medical Center, Nashville, USA
| | - C Hennessy
- Vanderbilt University Medical Center, Nashville, USA
| | - C-Y Hsu
- Vanderbilt University Medical Center, Nashville, USA
| | - Y Shyr
- Vanderbilt University Medical Center, Nashville, USA
| | - X Li
- Vanderbilt University School of Medicine, Nashville, USA
| | | | - C A Painter
- Broad Institute, Cancer Program, Cambridge, USA
| | - S Peters
- Lausanne University, Lausanne, Switzerland
| | - B I Rini
- Vanderbilt University Medical Center, Nashville, USA
| | | | - S Mishra
- Vanderbilt University Medical Center, Nashville, USA
| | - D R Rivera
- Division of Cancer Control and Population Sciences, National Cancer Institute, Rockville, USA
| | - J D Acoba
- University of Hawaii Cancer Center, Honolulu, USA
| | - M Z Abidi
- University of Colorado School of Medicine, Aurora, USA
| | - Z Bakouny
- Dana-Farber Cancer Institute, Boston, USA
| | - B Bashir
- Sidney Kimmel Cancer Center at Thomas Jefferson University, Philadelphia, USA
| | | | - S Berg
- Cardinal Bernardin Cancer Center, Loyola University Medical Center, Maywood, USA
| | | | - M A Bilen
- Winship Cancer Institute of Emory University, Atlanta, USA
| | - P Bindal
- Beth Israel Deaconess Medical Center, Boston, USA
| | - R Bishnoi
- University of Florida, Gainesville, USA
| | - N Bouganim
- McGill University Health Centre, Montréal, Canada
| | - D W Bowles
- University of Colorado School of Medicine, Aurora, USA
| | - A Cabal
- University of California San Diego, Moores Cancer Center, La Jolla, USA
| | - P F Caimi
- University Hospitals Seidman Cancer Center, Cleveland, USA; Case Western Reserve University, Cleveland, USA
| | - D D Chism
- Thompson Cancer Survival Center, Knoxville, USA
| | - J Crowell
- St. Elizabeth Healthcare, Edgewood, USA
| | - C Curran
- Dana-Farber Cancer Institute, Boston, USA
| | - A Desai
- Mayo Clinic Cancer Center, Rochester, USA
| | - B Dixon
- St. Elizabeth Healthcare, Edgewood, USA
| | - D B Doroshow
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, USA
| | - E B Durbin
- Markey Cancer Center, University of Kentucky, Lexington, USA
| | - A Elkrief
- McGill University Health Centre, Montréal, Canada
| | - D Farmakiotis
- The Warren Alpert Medical School of Brown University, Providence, USA
| | - A Fazio
- Tufts Medical Center Cancer Center, Boston and Stoneham, USA
| | - L A Fecher
- University of Michigan Rogel Cancer Center, Ann Arbor, USA
| | - D B Flora
- St. Elizabeth Healthcare, Edgewood, USA
| | - C R Friese
- University of Michigan Rogel Cancer Center, Ann Arbor, USA
| | - J Fu
- Tufts Medical Center Cancer Center, Boston and Stoneham, USA
| | - S M Gadgeel
- Henry Ford Cancer Institute/Henry Ford Health System, Detroit, USA
| | - M D Galsky
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, USA
| | - D M Gill
- Intermountain Healthcare, Salt Lake City, USA
| | | | - S Goyal
- George Washington University, Washington DC, USA
| | - P Grover
- University of Cincinnati Cancer Center, Cincinnati, USA
| | - S Gulati
- University of Cincinnati Cancer Center, Cincinnati, USA
| | - S Gupta
- Cleveland Clinic Taussig Cancer Institute, Cleveland, USA
| | | | | | - B Halmos
- Albert Einstein Cancer Center/Montefiore Medical Center, Bronx, USA
| | - D J Hausrath
- Vanderbilt University School of Medicine, Nashville, USA
| | - J E Hawley
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, USA
| | - E Hsu
- Hartford HealthCare, Hartford, USA; University of Connecticut, Farmington, USA
| | - M Huynh-Le
- George Washington University, Washington DC, USA
| | - C Hwang
- Henry Ford Cancer Institute/Henry Ford Health System, Detroit, USA
| | - C Jani
- Mount Auburn Hospital, Cambridge, USA
| | | | - D B Johnson
- Vanderbilt University Medical Center, Nashville, USA
| | - A Kasi
- University of Kansas Medical Center, Kansas City, USA
| | - H Khan
- The Warren Alpert Medical School of Brown University, Providence, USA
| | - V S Koshkin
- University of California, San Francisco, San Francisco, USA
| | - N M Kuderer
- Advanced Cancer Research Group, LLC, Kirkland, USA
| | - D H Kwon
- University of California, San Francisco, San Francisco, USA
| | | | - A Li
- Baylor College of Medicine, Houston, USA
| | | | - C A Low
- Intermountain Healthcare, Salt Lake City, USA
| | | | - G H Lyman
- University of Washington/Fred Hutchinson Cancer Research Center/Seattle Cancer Care Alliance, Seattle, USA
| | - R R McKay
- University of California San Diego, Moores Cancer Center, La Jolla, USA
| | - C McNair
- Sidney Kimmel Cancer Center at Thomas Jefferson University, Philadelphia, USA
| | - H Menon
- Penn State Health/Penn State Cancer Institute/St. Joseph Cancer Center, Hershey, USA
| | - R A Mesa
- Mays Cancer Center at UT Health San Antonio MD Anderson, San Antonio, USA
| | - V Mico
- Sidney Kimmel Cancer Center at Thomas Jefferson University, Philadelphia, USA
| | - D Mundt
- Advocate Aurora Health, Milwaukee, USA
| | - G Nagaraj
- Loma Linda University Cancer Center, Loma Linda, USA
| | - E S Nakasone
- University of Washington/Fred Hutchinson Cancer Research Center/Seattle Cancer Care Alliance, Seattle, USA
| | - J Nakayama
- Case Western Reserve University, Cleveland, USA; University Hospitals Cleveland Medical Center, Cleveland, USA
| | - A Nizam
- Cleveland Clinic Taussig Cancer Institute, Cleveland, USA
| | - N L Nock
- University Hospitals Seidman Cancer Center, Cleveland, USA; Case Western Reserve University, Cleveland, USA
| | - C Park
- University of Cincinnati Cancer Center, Cincinnati, USA
| | - J M Patel
- Beth Israel Deaconess Medical Center, Boston, USA
| | - K G Patel
- University of California Davis Comprehensive Cancer Center, Sacramento, USA
| | - P Peddi
- Willis-Knighton Cancer Center, Shreveport, USA
| | - N A Pennell
- Cleveland Clinic Taussig Cancer Institute, Cleveland, USA
| | | | - M Puc
- Virtua Health, Marlton, USA
| | | | - M E Reeves
- Loma Linda University Cancer Center, Loma Linda, USA
| | - D Y Reuben
- Medical University of South Carolina, Charleston, USA
| | | | - R P Rosovsky
- Massachusetts General Hospital, Harvard Medical School, Boston, USA
| | | | - M Salazar
- Mays Cancer Center at UT Health San Antonio MD Anderson, San Antonio, USA
| | | | - G K Schwartz
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, USA
| | - M R Shah
- Rutgers Cancer Institute of New Jersey, New Brunswick, USA
| | - S A Shah
- Stanford University, Stanford, USA
| | - C Shah
- University of Florida, Gainesville, USA
| | - J A Shaya
- University of California San Diego, Moores Cancer Center, La Jolla, USA
| | - S R K Singh
- Henry Ford Cancer Institute/Henry Ford Health System, Detroit, USA
| | - M Smits
- ThedaCare Regional Cancer Center, Appleton, USA
| | | | - D G Stover
- The Ohio State University, Columbus, USA
| | | | - S Subbiah
- Stanley S. Scott Cancer Center, LSU Health Sciences Center, New Orleans, USA
| | - L Tachiki
- University of Washington/Fred Hutchinson Cancer Research Center/Seattle Cancer Care Alliance, Seattle, USA
| | - E Tadesse
- Advocate Aurora Health, Milwaukee, USA
| | - A Thakkar
- Albert Einstein Cancer Center/Montefiore Medical Center, Bronx, USA
| | - M D Tucker
- Vanderbilt University Medical Center, Nashville, USA
| | - A K Verma
- Albert Einstein Cancer Center/Montefiore Medical Center, Bronx, USA
| | - D C Vinh
- McGill University Health Centre, Montréal, Canada
| | - M Weiss
- ThedaCare Regional Cancer Center, Appleton, USA
| | - J T Wu
- Stanford University, Stanford, USA
| | | | - Z Xie
- Mayo Clinic Cancer Center, Rochester, USA
| | - P P Yu
- Hartford HealthCare, Hartford, USA
| | - T Zhang
- Duke University, Durham, USA
| | - A Y Zhou
- Siteman Cancer Center, Washington University School of Medicine, St. Louis, USA
| | - H Zhu
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, USA
| | - L Zubiri
- Massachusetts General Hospital, Harvard Medical School, Boston, USA
| | - D P Shah
- Mays Cancer Center at UT Health San Antonio MD Anderson, San Antonio, USA
| | - J L Warner
- Vanderbilt University Medical Center, Nashville, USA
| | - GdL Lopes
- University of Miami/Sylvester Comprehensive Cancer Center, Miami, USA
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11
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Mahajan R, Gulati S, Gupta K, Jain K, Bloria S, JItendra M. Ultrasound-guided sacral multifidus plane block for analgesia following excision of sacrococcygeal teratoma in two neonates. Anaesth Rep 2021; 9:81-84. [PMID: 33937779 DOI: 10.1002/anr3.12116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/29/2021] [Indexed: 11/07/2022] Open
Abstract
Peri-operative pain management in the neonate with a sacrococcygeal teratoma poses significant challenges to the anaesthetist. Involvement of the sacrococcygeal area by the tumour often prevents the use of conventional regional anaesthetic techniques such as caudal or epidural analgesia, with a subsequent reliance on intravenous opioids and paracetamol. Since opioids are associated with respiratory depression, constipation and urinary retention, there is high incidence of opiophobia with consequent inappropriate dosage prescription, particularly in the paediatric population. We describe the use of an ultrasound-guided sacral multifidus plane block in two neonates undergoing surgical excision of sacrococcygeal teratoma. The block is technically easy to perform and also avoids traversing critical structures. Hence, it may be regarded as a promising analgesic technique for painful interventions in the sacrococcygeal area.
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Affiliation(s)
- R Mahajan
- Department of Anesthesia, ICU and Pain Medicine Government Medical College Jammu India
| | - S Gulati
- Department of Anesthesia, ICU and Pain Medicine Government Medical College Jammu India
| | - K Gupta
- Department of Radiodiagnosis and Imaging Government Medical College Jammu India
| | - K Jain
- Department of Anesthesia and ICU Postgraduate Institution of Medical Education and Research Chandigarh India
| | - S Bloria
- Department of Anesthesia, ICU and Pain Medicine Government Medical College Jammu India
| | - M JItendra
- Department of Anesthesia, ICU and Pain Medicine Government Medical College Jammu India
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12
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Wise-Draper T, Desai A, Elkrief A, Rini B, Flora D, Bowles D, Shah D, Rivera D, Johnson D, Lopes G, Grivas P, Thompson M, Peters S, Kuderer N, Nock N, Grover P, Li X, Gulati S, Choueiri T, Warner J. LBA71 Systemic cancer treatment-related outcomes in patients with SARS-CoV-2 infection: A CCC19 registry analysis. Ann Oncol 2020. [PMCID: PMC7506308 DOI: 10.1016/j.annonc.2020.08.2312] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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13
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Gulati A, Gulati S, Gulati S, Sagar R, Kumar A. A meta-analysis of randomized controlled trials conducted using stem cell therapy for patients with ischemic stroke. J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.486] [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: 10/25/2022]
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14
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Pavlidis P, Graham J, Gulati S, Dubois P, Heneghan M, Joshi D, Hayee B. Letter: vedolizumab for autoimmune liver disease associated inflammatory bowel disease. Aliment Pharmacol Ther 2018; 47:1422-1423. [PMID: 29676010 DOI: 10.1111/apt.14603] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- P Pavlidis
- Department of Gastroenterology, King's College Hospital, London, UK
| | - J Graham
- Institute of Liver Studies, King's College Hospital, London, UK
| | - S Gulati
- Department of Gastroenterology, King's College Hospital, London, UK
| | - P Dubois
- Department of Gastroenterology, King's College Hospital, London, UK
| | - M Heneghan
- Institute of Liver Studies, King's College Hospital, London, UK
| | - D Joshi
- Institute of Liver Studies, King's College Hospital, London, UK
| | - B Hayee
- Department of Gastroenterology, King's College Hospital, London, UK
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15
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Gulati S, Balaji A, Agarwal P. 7.10-P12Awareness and knowledge of Glaucoma in ethnic minority groups in Scotland. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky048.244] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Gulati
- University of Edinburgh, United Kingdom
| | - A Balaji
- University of Edinburgh, United Kingdom
| | - P Agarwal
- Princess Alexandra Eye Pavilion, United Kingdom
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16
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Vellarikkal SK, Jayarajan R, Verma A, Ravi R, Senthilvel V, Kumar A, Saini L, Gulati S, Lal M, Mathur A, Chhetri MK, Faruq M, Scaria V, Sivasubbu S. A founder mutation MLC1 c.736delA associated with megalencephalic leukoencephalopathy with subcortical cysts-1 in north Indian kindred. Clin Genet 2018; 94:271-273. [PMID: 29667716 DOI: 10.1111/cge.13251] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 03/01/2018] [Accepted: 03/19/2018] [Indexed: 11/28/2022]
Affiliation(s)
- S K Vellarikkal
- Genomics and Molecular Medicine Unit, CSIR Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-IGIB South Campus, New Delhi, India
| | - R Jayarajan
- Genomics and Molecular Medicine Unit, CSIR Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India
| | - A Verma
- Genomics and Molecular Medicine Unit, CSIR Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India
| | - R Ravi
- Genomics and Molecular Medicine Unit, CSIR Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India
| | - V Senthilvel
- Genomics and Molecular Medicine Unit, CSIR Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India
| | - A Kumar
- Genomics and Molecular Medicine Unit, CSIR Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India
| | - L Saini
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - S Gulati
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - M Lal
- Alshifa Multispeciality Hospital, New Delhi, India
| | - A Mathur
- Genomics and Molecular Medicine Unit, CSIR Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India
| | - M K Chhetri
- Genomics and Molecular Medicine Unit, CSIR Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India
| | - M Faruq
- Genomics and Molecular Medicine Unit, CSIR Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-IGIB South Campus, New Delhi, India
| | - V Scaria
- Academy of Scientific and Innovative Research (AcSIR), CSIR-IGIB South Campus, New Delhi, India.,GN Ramachandran Knowledge Center for Genome Informatics, CSIR Institute of Genomics and Integrative Biology, New Delhi, India
| | - S Sivasubbu
- Genomics and Molecular Medicine Unit, CSIR Institute of Genomics and Integrative Biology (CSIR-IGIB), New Delhi, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-IGIB South Campus, New Delhi, India
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17
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Bartek J, Sjåvik K, Ståhl F, Kristiansson H, Solheim O, Gulati S, Sagberg LM, Förander P, Jakola AS. Surgery for chronic subdural hematoma in nonagenarians: A Scandinavian population-based multicenter study. Acta Neurol Scand 2017; 136:516-520. [PMID: 28382656 DOI: 10.1111/ane.12764] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/14/2017] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Chronic subdural hematoma (cSDH) is a prevalent condition often seen in the elderly, with surgery being the treatment of choice when symptomatic. So far, few have explored the surgical outcomes in patients 90 years or older. The aim of this study was to investigate outcome after cSDH surgery in nonagenarians (≥90 y/o group) compared to younger adult patients (<90 y/o group). MATERIALS In a Scandinavian population-based cohort we conducted a retrospective review of 1,254 patients undergoing primary burr-hole procedures for cSDH between January 1, 2005 and December 31, 2010 at three neurosurgical centers. In a comparative analysis, the primary end-point was difference in hematoma recurrence rates between the ≥90 y/o and <90 y/o groups. The secondary end-points were differences in perioperative morbidity and mortality between groups. RESULTS 75 patients were 90 years or older. There was no significant difference in recurrences resulting in reoperation between the age groups (10.7% vs 13.6%, P=.47). There was also no significant difference in overall complication rate (4.1% vs 8.1%, P=.21) or severe complications (1.4% vs 2.0%, P=.68). There were three (4.0%) perioperative deaths within 30 days in the ≥90 y/o group and 40 (3.4%) in the <90 y/o group (P=.78). CONCLUSION Patients 90 years or older had similar rates of recurrence, perioperative morbidity and perioperative mortality as compared to younger patients. Age alone should not be a contraindication for surgery in patients with cSDH.
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Affiliation(s)
- J. Bartek
- Department of Clinical Neuroscience; Section for Neurosurgery; Karolinska Institutet and Department of Neurosurgery; Karolinska University Hospital; Stockholm Sweden
- Department of Neurosurgery; Copenhagen University Hospital Rigshospitalet; Copenhagen Denmark
| | - K. Sjåvik
- Department of Neurosurgery; University Hospital of North Norway; Tromsø Norway
| | - F. Ståhl
- Department of Clinical Neuroscience; Section for Neurosurgery; Karolinska Institutet and Department of Neurosurgery; Karolinska University Hospital; Stockholm Sweden
| | - H. Kristiansson
- Department of Clinical Neuroscience; Section for Neurosurgery; Karolinska Institutet and Department of Neurosurgery; Karolinska University Hospital; Stockholm Sweden
| | - O. Solheim
- Department of Neurosurgery; St.Olav University Hospital; Trondheim Norway
- Department of Neuroscience; Norwegian University of Science and Technology; Trondheim Norway
- Norwegian National Advisory Unit for Ultrasound and Image-Guided Therapy; St.Olav Hospital; Trondheim Norway
| | - S. Gulati
- Department of Neurosurgery; St.Olav University Hospital; Trondheim Norway
- Department of Neuroscience; Norwegian University of Science and Technology; Trondheim Norway
| | - L. M. Sagberg
- Department of Neurosurgery; St.Olav University Hospital; Trondheim Norway
- Department of Neuroscience; Norwegian University of Science and Technology; Trondheim Norway
- Norwegian National Advisory Unit for Ultrasound and Image-Guided Therapy; St.Olav Hospital; Trondheim Norway
| | - P. Förander
- Department of Clinical Neuroscience; Section for Neurosurgery; Karolinska Institutet and Department of Neurosurgery; Karolinska University Hospital; Stockholm Sweden
| | - A. S. Jakola
- Department of Neurosurgery; St.Olav University Hospital; Trondheim Norway
- Department of Neurosurgery; Sahlgrenska Univerity Hospital; Gothenburg Sweden
- Institute of Neuroscience and Physiology; University of Gothenburg; Sahlgrenska Academy; Gothenburg Sweden
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18
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Vanaerschot M, Lucantoni L, Li T, Combrinck JM, Ruecker A, Kumar TRS, Rubiano K, Ferreira PE, Siciliano G, Gulati S, Henrich PP, Ng CL, Murithi JM, Corey VC, Duffy S, Lieberman OJ, Veiga MI, Sinden RE, Alano P, Delves MJ, Lee Sim K, Winzeler EA, Egan TJ, Hoffman SL, Avery VM, Fidock DA. Hexahydroquinolines are antimalarial candidates with potent blood-stage and transmission-blocking activity. Nat Microbiol 2017. [PMID: 28808258 DOI: 10.1038/s41564-017-0007–4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Antimalarial compounds with dual therapeutic and transmission-blocking activity are desired as high-value partners for combination therapies. Here, we report the identification and characterization of hexahydroquinolines (HHQs) that show low nanomolar potency against both pathogenic and transmissible intra-erythrocytic forms of the malaria parasite Plasmodium falciparum. This activity translates into potent transmission-blocking potential, as shown by in vitro male gamete formation assays and reduced oocyst infection and prevalence in Anopheles mosquitoes. In vivo studies illustrated the ability of lead HHQs to suppress Plasmodium berghei blood-stage parasite proliferation. Resistance selection studies, confirmed by CRISPR-Cas9-based gene editing, identified the digestive vacuole membrane-spanning transporter PfMDR1 (P. falciparum multidrug resistance gene-1) as a determinant of parasite resistance to HHQs. Haemoglobin and haem fractionation assays suggest a mode of action that results in reduced haemozoin levels and might involve inhibition of host haemoglobin uptake into intra-erythrocytic parasites. Furthermore, parasites resistant to HHQs displayed increased susceptibility to several first-line antimalarial drugs, including lumefantrine, confirming that HHQs have a different mode of action to other antimalarials drugs for which PfMDR1 is known to confer resistance. This work evokes therapeutic strategies that combine opposing selective pressures on this parasite transporter as an approach to countering the emergence and transmission of multidrug-resistant P. falciparum malaria.
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Affiliation(s)
- Manu Vanaerschot
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, 10032, USA
| | - Leonardo Lucantoni
- Discovery Biology, Griffith Institute for Drug Discovery, Griffith University, Nathan, 4111, Queensland, Australia
| | - Tao Li
- Sanaria Inc., Rockville, MD, 20852, USA
| | - Jill M Combrinck
- Division of Pharmacology, Department of Medicine, University of Cape Town, Cape Town, 7925, South Africa
| | - Andrea Ruecker
- Department of Life Sciences, Imperial College, London, SW7 2AZ, UK.,Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, 10400, Thailand.,Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7FZ, UK
| | - T R Santha Kumar
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, 10032, USA
| | - Kelly Rubiano
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, 10032, USA
| | - Pedro E Ferreira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057, Braga, Portugal
| | - Giulia Siciliano
- Dipartimento di Malattie Infettive, Parassitarie ed Immunomediate, Istituto Superiore di Sanità, 00161, Rome, Italy
| | - Sonia Gulati
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, 10032, USA
| | - Philipp P Henrich
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, 10032, USA
| | - Caroline L Ng
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, 10032, USA
| | - James M Murithi
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, 10032, USA
| | - Victoria C Corey
- University of California, San Diego, School of Medicine, La Jolla, CA, 92093, USA
| | - Sandra Duffy
- Discovery Biology, Griffith Institute for Drug Discovery, Griffith University, Nathan, 4111, Queensland, Australia
| | - Ori J Lieberman
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, 10032, USA
| | - M Isabel Veiga
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057, Braga, Portugal
| | - Robert E Sinden
- Department of Life Sciences, Imperial College, London, SW7 2AZ, UK
| | - Pietro Alano
- Dipartimento di Malattie Infettive, Parassitarie ed Immunomediate, Istituto Superiore di Sanità, 00161, Rome, Italy
| | - Michael J Delves
- Department of Life Sciences, Imperial College, London, SW7 2AZ, UK
| | | | - Elizabeth A Winzeler
- University of California, San Diego, School of Medicine, La Jolla, CA, 92093, USA
| | - Timothy J Egan
- Department of Chemistry, University of Cape Town, Cape Town, 7700, South Africa
| | | | - Vicky M Avery
- Discovery Biology, Griffith Institute for Drug Discovery, Griffith University, Nathan, 4111, Queensland, Australia
| | - David A Fidock
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, 10032, USA. .,Division of Infectious Diseases, Department of Medicine, Columbia University Medical Center, New York, NY, 10032, USA.
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19
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Vanaerschot M, Lucantoni L, Li T, Combrinck JM, Ruecker A, Kumar TRS, Rubiano K, Ferreira PE, Siciliano G, Gulati S, Henrich PP, Ng CL, Murithi JM, Corey VC, Duffy S, Lieberman OJ, Veiga MI, Sinden RE, Alano P, Delves MJ, Lee Sim K, Winzeler EA, Egan TJ, Hoffman SL, Avery VM, Fidock DA. Hexahydroquinolines are antimalarial candidates with potent blood-stage and transmission-blocking activity. Nat Microbiol 2017; 2:1403-1414. [PMID: 28808258 DOI: 10.1038/s41564-017-0007-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 07/11/2017] [Indexed: 12/21/2022]
Abstract
Antimalarial compounds with dual therapeutic and transmission-blocking activity are desired as high-value partners for combination therapies. Here, we report the identification and characterization of hexahydroquinolines (HHQs) that show low nanomolar potency against both pathogenic and transmissible intra-erythrocytic forms of the malaria parasite Plasmodium falciparum. This activity translates into potent transmission-blocking potential, as shown by in vitro male gamete formation assays and reduced oocyst infection and prevalence in Anopheles mosquitoes. In vivo studies illustrated the ability of lead HHQs to suppress Plasmodium berghei blood-stage parasite proliferation. Resistance selection studies, confirmed by CRISPR-Cas9-based gene editing, identified the digestive vacuole membrane-spanning transporter PfMDR1 (P. falciparum multidrug resistance gene-1) as a determinant of parasite resistance to HHQs. Haemoglobin and haem fractionation assays suggest a mode of action that results in reduced haemozoin levels and might involve inhibition of host haemoglobin uptake into intra-erythrocytic parasites. Furthermore, parasites resistant to HHQs displayed increased susceptibility to several first-line antimalarial drugs, including lumefantrine, confirming that HHQs have a different mode of action to other antimalarials drugs for which PfMDR1 is known to confer resistance. This work evokes therapeutic strategies that combine opposing selective pressures on this parasite transporter as an approach to countering the emergence and transmission of multidrug-resistant P. falciparum malaria.
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Affiliation(s)
- Manu Vanaerschot
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, 10032, USA
| | - Leonardo Lucantoni
- Discovery Biology, Griffith Institute for Drug Discovery, Griffith University, Nathan, 4111, Queensland, Australia
| | - Tao Li
- Sanaria Inc., Rockville, MD, 20852, USA
| | - Jill M Combrinck
- Division of Pharmacology, Department of Medicine, University of Cape Town, Cape Town, 7925, South Africa
| | - Andrea Ruecker
- Department of Life Sciences, Imperial College, London, SW7 2AZ, UK.,Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, 10400, Thailand.,Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7FZ, UK
| | - T R Santha Kumar
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, 10032, USA
| | - Kelly Rubiano
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, 10032, USA
| | - Pedro E Ferreira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057, Braga, Portugal
| | - Giulia Siciliano
- Dipartimento di Malattie Infettive, Parassitarie ed Immunomediate, Istituto Superiore di Sanità, 00161, Rome, Italy
| | - Sonia Gulati
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, 10032, USA
| | - Philipp P Henrich
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, 10032, USA
| | - Caroline L Ng
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, 10032, USA
| | - James M Murithi
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, 10032, USA
| | - Victoria C Corey
- University of California, San Diego, School of Medicine, La Jolla, CA, 92093, USA
| | - Sandra Duffy
- Discovery Biology, Griffith Institute for Drug Discovery, Griffith University, Nathan, 4111, Queensland, Australia
| | - Ori J Lieberman
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, 10032, USA
| | - M Isabel Veiga
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057, Braga, Portugal
| | - Robert E Sinden
- Department of Life Sciences, Imperial College, London, SW7 2AZ, UK
| | - Pietro Alano
- Dipartimento di Malattie Infettive, Parassitarie ed Immunomediate, Istituto Superiore di Sanità, 00161, Rome, Italy
| | - Michael J Delves
- Department of Life Sciences, Imperial College, London, SW7 2AZ, UK
| | | | - Elizabeth A Winzeler
- University of California, San Diego, School of Medicine, La Jolla, CA, 92093, USA
| | - Timothy J Egan
- Department of Chemistry, University of Cape Town, Cape Town, 7700, South Africa
| | | | - Vicky M Avery
- Discovery Biology, Griffith Institute for Drug Discovery, Griffith University, Nathan, 4111, Queensland, Australia
| | - David A Fidock
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, 10032, USA. .,Division of Infectious Diseases, Department of Medicine, Columbia University Medical Center, New York, NY, 10032, USA.
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20
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Rana J, Gulati S, Rajasekharan S, Gupta A, Chaudhary V, Gupta S. Identification of potential molecular associations between chikungunya virus non-structural protein 2 and human host proteins. Acta Virol 2017; 61:39-47. [PMID: 28105853 DOI: 10.4149/av_2017_01_39] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Chikungunya virus (CHIKV) non-structural protein 2 (nsP2) is considered to be the master regulator of viral RNA replication and host responses generated during viral infection. This protein has two main functional domains: an N-terminal domain which exhibits NTPase, RNA triphosphatase and helicase activities and a C-terminal protease domain. Understanding how CHIKV nsP2 interacts with its host proteins is essential for elucidating all the required processes for viral replication and pathogenesis along with the identification of potential targets for antiviral therapy. In current study yeast two-hybrid (Y2H) screening of a human fetal brain cDNA library was performed using nsP2 protein as bait. The analysis identified seven host proteins (CCDC130, CPNE6, POLR2C, MAPK9, EIF4A2, EEF1A1 and EIF3I) as putative interactors of CHIKV nsP2 which were selected for further analysis based on their roles in host cellular machinery. The gene ontology analysis indicates that these proteins are mainly involved in apoptosis, transcription and translational mechanism of host cell. Domain mapping of nsP2 revealed that these associations are not random connections but instead they have functional significance. Further studies to identify the amino acid residues and their chemical interactions that may help in opening new possibilities for preventing these interactions, thus reducing chances of chikungunya infection were performed. This study expands the understanding of CHIKV-host interactions and is important for rational approaches of discovering new antiviral agents.
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21
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Cowger J, Naka Y, Aaronson K, Horstmanshoff D, Gulati S, Rinde-Hoffman D, Pinney S, Adatya S, Farrar D, Jorde U. Quality of Life and Functional Capacity Assessment in the Multicenter Study of Maglev Technology in Patients Undergoing Mechanical Circulatory Support Therapy with Heartmate 3(Momentum 3) Pivotal Trial. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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22
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Ghatak S, Gulati S, Agarwal M. Gastrocele: a rare cause of pain abdomen after colonic bypass for corrosive stricture esophagus. Dis Esophagus 2016; 29:1162-1163. [PMID: 25872414 DOI: 10.1111/dote.12366] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- S Ghatak
- Department of Surgical Gastroenterology, Bellevue Clinic, Kolkata, India
| | - S Gulati
- Department of Surgical Gastroenterology, Bellevue Clinic, Kolkata, India
| | - M Agarwal
- Department of Gastroenterology, Bellevue Clinic, Kolkata, India
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Affiliation(s)
| | | | - S. Chandra
- Department of Neurosurgery, C.N. Centre, All India Institute of Medical Sciences, New Delhi; India
| | - M.C. Sharma
- Department of Neuropathology, C.N. Centre, All India Institute of Medical Sciences, New Delhi; India
| | | | - S. Gulati
- Paediatrics, Neurosciences Center, C.N. Centre, All India Institute of Medical Sciences, New Delhi; India
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Gulati S, Rothwell D, Burt D, Mesquita B, Wirth C, Wilson G, Pierce J, Brady G, Swanton C, Dive C. Molecular profiling of circulating tumour cells (CTCs) in non-small cell lung cancer within the TRACERx study of intratumoural heterogeneity and evolution. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61658-1] [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]
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Kim C, Gulati S, Ayub M, Rothwell D, Mohan S, Dive C, Brady G, Miller C. A novel PCR error correction algorithm for cell-free DNA next generation sequencing data using high performance computing. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61660-x] [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: 11/29/2022]
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Gulati S, Stubblefield AA, Hanlon JS, Spier CL, Camarillo MK, Stringfellow WT. Evaluation of watershed-derived mass loads to prioritize TMDL decision-making. Water Sci Technol 2016; 73:654-661. [PMID: 26877050 DOI: 10.2166/wst.2015.530] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A total maximum daily load (TMDL) for oxygen demanding substances is being implemented in the San Joaquin River (SJR) in California (USA) due to frequently occurring low dissolved oxygen conditions. The SJR is a eutrophic river, heavily impacted by agriculture. A mass balance was developed to identify the sources of oxygen-demanding substances and nutrients to the river with the objective of providing a scientific basis for management actions needed to meet TMDL requirements. Data were collected for flow and water quality and mass loads calculated for sites within the main stem of the SJR, river inputs (tributaries), and diversions in the study area. Using a quadrant analysis, tributary flows and loads are ranked to identify targets for water quality improvement efforts. Additionally, all mass loads were summed (inputs minus diversions) and compared with observed loads at the downstream limit of the study area. The mass balance analysis identifies major contributors of mass loads and mass balance closure is assessed for each constituent. These analysis methods inform the TMDL process which includes a load allocation, and is useful for determining locations for implementation of improvement projects needed to improve the health of the river.
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Affiliation(s)
- S Gulati
- Ecological Engineering Research Program, University of the Pacific, 3601 Pacific Ave, Stockton, CA 95211, USA E-mail:
| | - A A Stubblefield
- Ecological Engineering Research Program, University of the Pacific, 3601 Pacific Ave, Stockton, CA 95211, USA E-mail:
| | - J S Hanlon
- Ecological Engineering Research Program, University of the Pacific, 3601 Pacific Ave, Stockton, CA 95211, USA E-mail:
| | - C L Spier
- Ecological Engineering Research Program, University of the Pacific, 3601 Pacific Ave, Stockton, CA 95211, USA E-mail:
| | - M K Camarillo
- Ecological Engineering Research Program, University of the Pacific, 3601 Pacific Ave, Stockton, CA 95211, USA E-mail:
| | - W T Stringfellow
- Ecological Engineering Research Program, University of the Pacific, 3601 Pacific Ave, Stockton, CA 95211, USA E-mail: ; Earth Science Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA
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Saxvig I, Lehmann S, Gulati S, Aurlien H, Pallesen S, Bjorvatn B. Prevalence of excessive sleepiness and insomnia in relation to severity of obstructive sleep apnea. Sleep Med 2015. [DOI: 10.1016/j.sleep.2015.02.504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kanu N, Grönroos E, Martinez P, Burrell RA, Yi Goh X, Bartkova J, Maya-Mendoza A, Mistrík M, Rowan AJ, Patel H, Rabinowitz A, East P, Wilson G, Santos CR, McGranahan N, Gulati S, Gerlinger M, Birkbak NJ, Joshi T, Alexandrov LB, Stratton MR, Powles T, Matthews N, Bates PA, Stewart A, Szallasi Z, Larkin J, Bartek J, Swanton C. SETD2 loss-of-function promotes renal cancer branched evolution through replication stress and impaired DNA repair. Oncogene 2015; 34:5699-708. [PMID: 25728682 PMCID: PMC4660036 DOI: 10.1038/onc.2015.24] [Citation(s) in RCA: 128] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 12/29/2014] [Accepted: 01/06/2015] [Indexed: 12/13/2022]
Abstract
Defining mechanisms that generate intratumour heterogeneity and branched evolution may inspire novel therapeutic approaches to limit tumour diversity and adaptation. SETD2 (Su(var), Enhancer of zeste, Trithorax-domain containing 2) trimethylates histone-3 lysine-36 (H3K36me3) at sites of active transcription and is mutated in diverse tumour types, including clear cell renal carcinomas (ccRCCs). Distinct SETD2 mutations have been identified in spatially separated regions in ccRCC, indicative of intratumour heterogeneity. In this study, we have addressed the consequences of SETD2 loss-of-function through an integrated bioinformatics and functional genomics approach. We find that bi-allelic SETD2 aberrations are not associated with microsatellite instability in ccRCC. SETD2 depletion in ccRCC cells revealed aberrant and reduced nucleosome compaction and chromatin association of the key replication proteins minichromosome maintenance complex component (MCM7) and DNA polymerase δ hindering replication fork progression, and failure to load lens epithelium-derived growth factor and the Rad51 homologous recombination repair factor at DNA breaks. Consistent with these data, we observe chromosomal breakpoint locations are biased away from H3K36me3 sites in SETD2 wild-type ccRCCs relative to tumours with bi-allelic SETD2 aberrations and that H3K36me3-negative ccRCCs display elevated DNA damage in vivo. These data suggest a role for SETD2 in maintaining genome integrity through nucleosome stabilization, suppression of replication stress and the coordination of DNA repair.
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Affiliation(s)
- N Kanu
- UCL Cancer Institute, Paul O'Gorman Building, London, UK
| | - E Grönroos
- Cancer Research UK London Research Institute, London, UK
| | - P Martinez
- Cancer Research UK London Research Institute, London, UK
| | - R A Burrell
- Cancer Research UK London Research Institute, London, UK
| | - X Yi Goh
- Cancer Research UK London Research Institute, London, UK
| | - J Bartkova
- Danish Cancer Society Research Center, Copenhagen, Denmark
| | - A Maya-Mendoza
- Danish Cancer Society Research Center, Copenhagen, Denmark
| | - M Mistrík
- Faculty of Medicine and Dentistry, Institute of Molecular and Translational Medicine, Palacky University, Olomouc, Czech Republic
| | - A J Rowan
- Cancer Research UK London Research Institute, London, UK
| | - H Patel
- Cancer Research UK London Research Institute, London, UK
| | - A Rabinowitz
- Cancer Research UK London Research Institute, London, UK
| | - P East
- Cancer Research UK London Research Institute, London, UK
| | - G Wilson
- Cancer Research UK London Research Institute, London, UK
| | - C R Santos
- Cancer Research UK London Research Institute, London, UK
| | - N McGranahan
- Cancer Research UK London Research Institute, London, UK
| | - S Gulati
- Cancer Research UK London Research Institute, London, UK
| | - M Gerlinger
- Cancer Research UK London Research Institute, London, UK
| | - N J Birkbak
- UCL Cancer Institute, Paul O'Gorman Building, London, UK
- Cancer Research UK London Research Institute, London, UK
- Department of Systems Biology, Center for Biological Sequence Analysis, Technical University of Denmark, Kongens Lyngby, Denmark
| | - T Joshi
- Department of Systems Biology, Center for Biological Sequence Analysis, Technical University of Denmark, Kongens Lyngby, Denmark
| | - L B Alexandrov
- Cancer Genome Project, Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Cambridgeshire, UK
| | - M R Stratton
- Cancer Genome Project, Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Cambridgeshire, UK
| | - T Powles
- Barts Cancer Institute, Experimental Cancer Medicine Centre, Queen Mary University of London, London, UK
| | - N Matthews
- Cancer Research UK London Research Institute, London, UK
| | - P A Bates
- Cancer Research UK London Research Institute, London, UK
| | - A Stewart
- Cancer Research UK London Research Institute, London, UK
| | - Z Szallasi
- Department of Systems Biology, Center for Biological Sequence Analysis, Technical University of Denmark, Kongens Lyngby, Denmark
- Children's Hospital Boston, Informatics—Enders 1506, Boston, MA, USA
| | - J Larkin
- Department of Medicine, The Royal Marsden Hospital, London, UK
| | - J Bartek
- Danish Cancer Society Research Center, Copenhagen, Denmark
- Faculty of Medicine and Dentistry, Institute of Molecular and Translational Medicine, Palacky University, Olomouc, Czech Republic
| | - C Swanton
- UCL Cancer Institute, Paul O'Gorman Building, London, UK
- Cancer Research UK London Research Institute, London, UK
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Affiliation(s)
- R Mahajan
- Quarter no c-3 Medical College, Jammu, India.
| | - R Nazir
- Quarter no c-3 Medical College, Jammu, India
| | - M Jatinder
- Quarter no c-3 Medical College, Jammu, India
| | - S Gulati
- Quarter no c-3 Medical College, Jammu, India
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Gulati S, Chattopadhyay R, Ghosh B, Yasmin S, Ghosh S, Bose G, Chakraborty P, Chakravarty B. Treatment with combined antioxidant formulation before ICSI improves pregnancy rate in couples with obstructive azoospermia. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.760] [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: 10/23/2022]
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Gulati S, Balderes D, Kim C, Guo ZA, Wilcox L, Area-Gomez E, Snider J, Wolinski H, Stagljar I, Granato JT, Ruggles KV, DeGiorgis JA, Kohlwein SD, Schon EA, Sturley SL. ATP-binding cassette transporters and sterol O-acyltransferases interact at membrane microdomains to modulate sterol uptake and esterification. FASEB J 2015. [PMID: 26220175 DOI: 10.1096/fj.14-264796] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A key component of eukaryotic lipid homeostasis is the esterification of sterols with fatty acids by sterol O-acyltransferases (SOATs). The esterification reactions are allosterically activated by their sterol substrates, the majority of which accumulate at the plasma membrane. We demonstrate that in yeast, sterol transport from the plasma membrane to the site of esterification is associated with the physical interaction of the major SOAT, acyl-coenzyme A:cholesterol acyltransferase (ACAT)-related enzyme (Are)2p, with 2 plasma membrane ATP-binding cassette (ABC) transporters: Aus1p and Pdr11p. Are2p, Aus1p, and Pdr11p, unlike the minor acyltransferase, Are1p, colocalize to sterol and sphingolipid-enriched, detergent-resistant microdomains (DRMs). Deletion of either ABC transporter results in Are2p relocalization to detergent-soluble membrane domains and a significant decrease (53-36%) in esterification of exogenous sterol. Similarly, in murine tissues, the SOAT1/Acat1 enzyme and activity localize to DRMs. This subcellular localization is diminished upon deletion of murine ABC transporters, such as Abcg1, which itself is DRM associated. We propose that the close proximity of sterol esterification and transport proteins to each other combined with their residence in lipid-enriched membrane microdomains facilitates rapid, high-capacity sterol transport and esterification, obviating any requirement for soluble intermediary proteins.
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Affiliation(s)
- Sonia Gulati
- *Institute of Human Nutrition, Department of Neurology, **Department of Genetics and Development, and Department of Pediatrics, Columbia University Medical Center, New York, New York, USA; Department of Biological Sciences and Department of Chemistry, Columbia University, New York, New York, USA; Donnelly Center for Cellular and Biomolecular Research, Toronto, Ontario, Canada; Institute of Molecular Biosciences, BioTechMed Graz, University of Graz, Graz, Austria; Department of Biology, Providence College, Providence, Rhode Island, USA; and Marine Biological Laboratory, Woods Hole, Massachusetts, USA
| | - Dina Balderes
- *Institute of Human Nutrition, Department of Neurology, **Department of Genetics and Development, and Department of Pediatrics, Columbia University Medical Center, New York, New York, USA; Department of Biological Sciences and Department of Chemistry, Columbia University, New York, New York, USA; Donnelly Center for Cellular and Biomolecular Research, Toronto, Ontario, Canada; Institute of Molecular Biosciences, BioTechMed Graz, University of Graz, Graz, Austria; Department of Biology, Providence College, Providence, Rhode Island, USA; and Marine Biological Laboratory, Woods Hole, Massachusetts, USA
| | - Christine Kim
- *Institute of Human Nutrition, Department of Neurology, **Department of Genetics and Development, and Department of Pediatrics, Columbia University Medical Center, New York, New York, USA; Department of Biological Sciences and Department of Chemistry, Columbia University, New York, New York, USA; Donnelly Center for Cellular and Biomolecular Research, Toronto, Ontario, Canada; Institute of Molecular Biosciences, BioTechMed Graz, University of Graz, Graz, Austria; Department of Biology, Providence College, Providence, Rhode Island, USA; and Marine Biological Laboratory, Woods Hole, Massachusetts, USA
| | - Zhongmin A Guo
- *Institute of Human Nutrition, Department of Neurology, **Department of Genetics and Development, and Department of Pediatrics, Columbia University Medical Center, New York, New York, USA; Department of Biological Sciences and Department of Chemistry, Columbia University, New York, New York, USA; Donnelly Center for Cellular and Biomolecular Research, Toronto, Ontario, Canada; Institute of Molecular Biosciences, BioTechMed Graz, University of Graz, Graz, Austria; Department of Biology, Providence College, Providence, Rhode Island, USA; and Marine Biological Laboratory, Woods Hole, Massachusetts, USA
| | - Lisa Wilcox
- *Institute of Human Nutrition, Department of Neurology, **Department of Genetics and Development, and Department of Pediatrics, Columbia University Medical Center, New York, New York, USA; Department of Biological Sciences and Department of Chemistry, Columbia University, New York, New York, USA; Donnelly Center for Cellular and Biomolecular Research, Toronto, Ontario, Canada; Institute of Molecular Biosciences, BioTechMed Graz, University of Graz, Graz, Austria; Department of Biology, Providence College, Providence, Rhode Island, USA; and Marine Biological Laboratory, Woods Hole, Massachusetts, USA
| | - Estela Area-Gomez
- *Institute of Human Nutrition, Department of Neurology, **Department of Genetics and Development, and Department of Pediatrics, Columbia University Medical Center, New York, New York, USA; Department of Biological Sciences and Department of Chemistry, Columbia University, New York, New York, USA; Donnelly Center for Cellular and Biomolecular Research, Toronto, Ontario, Canada; Institute of Molecular Biosciences, BioTechMed Graz, University of Graz, Graz, Austria; Department of Biology, Providence College, Providence, Rhode Island, USA; and Marine Biological Laboratory, Woods Hole, Massachusetts, USA
| | - Jamie Snider
- *Institute of Human Nutrition, Department of Neurology, **Department of Genetics and Development, and Department of Pediatrics, Columbia University Medical Center, New York, New York, USA; Department of Biological Sciences and Department of Chemistry, Columbia University, New York, New York, USA; Donnelly Center for Cellular and Biomolecular Research, Toronto, Ontario, Canada; Institute of Molecular Biosciences, BioTechMed Graz, University of Graz, Graz, Austria; Department of Biology, Providence College, Providence, Rhode Island, USA; and Marine Biological Laboratory, Woods Hole, Massachusetts, USA
| | - Heimo Wolinski
- *Institute of Human Nutrition, Department of Neurology, **Department of Genetics and Development, and Department of Pediatrics, Columbia University Medical Center, New York, New York, USA; Department of Biological Sciences and Department of Chemistry, Columbia University, New York, New York, USA; Donnelly Center for Cellular and Biomolecular Research, Toronto, Ontario, Canada; Institute of Molecular Biosciences, BioTechMed Graz, University of Graz, Graz, Austria; Department of Biology, Providence College, Providence, Rhode Island, USA; and Marine Biological Laboratory, Woods Hole, Massachusetts, USA
| | - Igor Stagljar
- *Institute of Human Nutrition, Department of Neurology, **Department of Genetics and Development, and Department of Pediatrics, Columbia University Medical Center, New York, New York, USA; Department of Biological Sciences and Department of Chemistry, Columbia University, New York, New York, USA; Donnelly Center for Cellular and Biomolecular Research, Toronto, Ontario, Canada; Institute of Molecular Biosciences, BioTechMed Graz, University of Graz, Graz, Austria; Department of Biology, Providence College, Providence, Rhode Island, USA; and Marine Biological Laboratory, Woods Hole, Massachusetts, USA
| | - Juliana T Granato
- *Institute of Human Nutrition, Department of Neurology, **Department of Genetics and Development, and Department of Pediatrics, Columbia University Medical Center, New York, New York, USA; Department of Biological Sciences and Department of Chemistry, Columbia University, New York, New York, USA; Donnelly Center for Cellular and Biomolecular Research, Toronto, Ontario, Canada; Institute of Molecular Biosciences, BioTechMed Graz, University of Graz, Graz, Austria; Department of Biology, Providence College, Providence, Rhode Island, USA; and Marine Biological Laboratory, Woods Hole, Massachusetts, USA
| | - Kelly V Ruggles
- *Institute of Human Nutrition, Department of Neurology, **Department of Genetics and Development, and Department of Pediatrics, Columbia University Medical Center, New York, New York, USA; Department of Biological Sciences and Department of Chemistry, Columbia University, New York, New York, USA; Donnelly Center for Cellular and Biomolecular Research, Toronto, Ontario, Canada; Institute of Molecular Biosciences, BioTechMed Graz, University of Graz, Graz, Austria; Department of Biology, Providence College, Providence, Rhode Island, USA; and Marine Biological Laboratory, Woods Hole, Massachusetts, USA
| | - Joseph A DeGiorgis
- *Institute of Human Nutrition, Department of Neurology, **Department of Genetics and Development, and Department of Pediatrics, Columbia University Medical Center, New York, New York, USA; Department of Biological Sciences and Department of Chemistry, Columbia University, New York, New York, USA; Donnelly Center for Cellular and Biomolecular Research, Toronto, Ontario, Canada; Institute of Molecular Biosciences, BioTechMed Graz, University of Graz, Graz, Austria; Department of Biology, Providence College, Providence, Rhode Island, USA; and Marine Biological Laboratory, Woods Hole, Massachusetts, USA
| | - Sepp D Kohlwein
- *Institute of Human Nutrition, Department of Neurology, **Department of Genetics and Development, and Department of Pediatrics, Columbia University Medical Center, New York, New York, USA; Department of Biological Sciences and Department of Chemistry, Columbia University, New York, New York, USA; Donnelly Center for Cellular and Biomolecular Research, Toronto, Ontario, Canada; Institute of Molecular Biosciences, BioTechMed Graz, University of Graz, Graz, Austria; Department of Biology, Providence College, Providence, Rhode Island, USA; and Marine Biological Laboratory, Woods Hole, Massachusetts, USA
| | - Eric A Schon
- *Institute of Human Nutrition, Department of Neurology, **Department of Genetics and Development, and Department of Pediatrics, Columbia University Medical Center, New York, New York, USA; Department of Biological Sciences and Department of Chemistry, Columbia University, New York, New York, USA; Donnelly Center for Cellular and Biomolecular Research, Toronto, Ontario, Canada; Institute of Molecular Biosciences, BioTechMed Graz, University of Graz, Graz, Austria; Department of Biology, Providence College, Providence, Rhode Island, USA; and Marine Biological Laboratory, Woods Hole, Massachusetts, USA
| | - Stephen L Sturley
- *Institute of Human Nutrition, Department of Neurology, **Department of Genetics and Development, and Department of Pediatrics, Columbia University Medical Center, New York, New York, USA; Department of Biological Sciences and Department of Chemistry, Columbia University, New York, New York, USA; Donnelly Center for Cellular and Biomolecular Research, Toronto, Ontario, Canada; Institute of Molecular Biosciences, BioTechMed Graz, University of Graz, Graz, Austria; Department of Biology, Providence College, Providence, Rhode Island, USA; and Marine Biological Laboratory, Woods Hole, Massachusetts, USA
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Abdul-Fattah M, Hafizi R, Abdul-Fattah H, Gulati S, Deonandan R. Health Sciences (HSS) Buddy Program: Evaluation of its First Year. Interdiscip Sci 2014. [DOI: 10.18192/riss-ijhs.v4i1.1222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
<p>In the 2011-2012 academic year, the HSS Buddy Program pilot project was implemented in the Interdisciplinary School of Health Sciences at the University of Ottawa. Intended to address rising student anxiety levels, the program teamed freshmen (first year) students with groups of older students to promote more instances of casual social interaction. Participants’ perceptions of the program were universally positive in terms of how enjoyable it was, its usefulness, and its relevance to student needs. Suggested improvements include recruiting of more male participants, liaising with school administrators to help avoid scheduling conflicts, starting the program earlier in the academic year, and forming social groups with fewer students. Overall, the approach undertaken by the Buddy Program was seen to be a valuable one worthy of continuation and growth.</p>
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Mahajan R, Gulati S, Jatinder M. Ventilator malfunction due to Luer lock misconnection. Anaesthesia 2014; 69:791-2. [DOI: 10.1111/anae.12770] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - S. Gulati
- Government Medical College; Jammu India
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Gulati A, Haugeberg G, Semb A, Romunstad P, Kavanaugh A, Gulati S, Rollefstad S, Hoff M. SAT0381 On the Hunt for Cardiovascular Risk Factors and Disease in Patients with Psoriatic Arthritis – Results from the Norwegian Hunt Study. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.5282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Gulati S, Qureshi A, Srivastava A, Kataria K, Kumar P, Ji AB. A Prospective Randomized Study to Compare the Effectiveness of Honey Dressing vs. Povidone Iodine Dressing in Chronic Wound Healing. Indian J Surg 2014; 76:193-8. [PMID: 25177115 PMCID: PMC4141059 DOI: 10.1007/s12262-012-0682-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [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: 11/18/2011] [Accepted: 06/22/2012] [Indexed: 01/22/2023] Open
Abstract
To compare the healing of chronic wounds with honey dressing vs. Povidone iodine dressing in adult subjects with chronic wounds of ≥6 weeks of duration, attending wound care clinic in Surgical Out Patient Department of All India Institute of Medical Sciences, Surgical Out Patient Department of Jai Prakash Narayan Apex Trauma center, New Delhi. Forty five subjects were randomized into two groups i.e., Honey & Povidone iodine dressing group. Dressing was done on alternate day basis for 6 weeks of followup period. Main outcome measure was complete healing at 6 weeks. Wound healing status was assessed at 2 weekly intervals till 6 weeks. Seven out of 22 subjects in honey treated group achieved complete healing as compared to none out of 20 subjects in Povidone iodine treated group. There was a significant decrease in the wound surface area, pain score & increase in comfort score in Honey dressing group in comparison to the Povidone Iodine group at 0.05 level of significance. Honey dressing is highly effective in achieving healing in chronic wounds as compared to Povidone iodine dressing.
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Affiliation(s)
- Sonia Gulati
- />College of nursing, AIIMS, New Delhi, 110029 India
| | - Ashia Qureshi
- />College of nursing, AIIMS, New Delhi, 110029 India
| | | | - Kamal Kataria
- />Department of Surgery, AIIMS, New Delhi, 110029 India
| | - Pratik Kumar
- />Department of Medical Physics, AIIMS, New Delhi, 110029 India
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Wiley B, Cameron D, Gulati S, Hogg A. Exploring the use of tablets (iPads) with children and young adults with disabilities in Trinidad. Disabil Rehabil Assist Technol 2014; 11:32-7. [PMID: 24773214 DOI: 10.3109/17483107.2014.914251] [Citation(s) in RCA: 8] [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] [Indexed: 11/13/2022]
Abstract
PURPOSE This study was conducted to review data gathered during a pilot project which trialed the use of a tablet computer, the iPad. METHODS Students from a segregated special education school and pre-vocational centre, with a wide range of intellectual and physical disabilities, were previously observed participating in 5-10-min introductory learning sessions with the iPad. This study reviewed quantitative and qualitative data collected during these sessions which included data regarding students' level of engagement and overall ability to learn how to operate the iPad and its applications. RESULTS Results were positive for level of engagement and ease of use with cause and effect applications. For lower functioning students or students not previously exposed to tablet technology, scores were lower but overall remained high based on the 5-point scaling used in this study. CONCLUSION Regular use of tablet technology in the classroom with applications appropriate to the level of ability of the student has the potential to enhance engagement in learning as well as maximise independence in the classroom. Implications for Rehabilitation The iPad has the capacity to be used with learners of all different ability levels if applications are selected appropriately and learners are given equal opportunity to access this type of technology. Enjoyment when using the iPad was high overall and this type of technology has the potential to promote more engagement in the learning process. Many applications are easy to use and progress students through step by step increasing the potential for independent learning in the classroom.
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Affiliation(s)
- Brittney Wiley
- a Department of Occupational Science and Occupational Therapy , University of Toronto , Toronto , Ontario , Canada and
| | - Deb Cameron
- a Department of Occupational Science and Occupational Therapy , University of Toronto , Toronto , Ontario , Canada and
| | - Sonia Gulati
- b Interdisciplinary School of Health Sciences, University of Ottawa , Ottawa , Ontario , Canada
| | - Alison Hogg
- a Department of Occupational Science and Occupational Therapy , University of Toronto , Toronto , Ontario , Canada and
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Ruggles KV, Garbarino J, Liu Y, Moon J, Schneider K, Henneberry A, Billheimer J, Millar JS, Marchadier D, Valasek MA, Joblin-Mills A, Gulati S, Munkacsi AB, Repa JJ, Rader D, Sturley SL. A functional, genome-wide evaluation of liposensitive yeast identifies the "ARE2 required for viability" (ARV1) gene product as a major component of eukaryotic fatty acid resistance. J Biol Chem 2013; 289:4417-31. [PMID: 24273168 DOI: 10.1074/jbc.m113.515197] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The toxic subcellular accumulation of lipids predisposes several human metabolic syndromes, including obesity, type 2 diabetes, and some forms of neurodegeneration. To identify pathways that prevent lipid-induced cell death, we performed a genome-wide fatty acid sensitivity screen in Saccharomyces cerevisiae. We identified 167 yeast mutants as sensitive to 0.5 mm palmitoleate, 45% of which define pathways that were conserved in humans. 63 lesions also impacted the status of the lipid droplet; however, this was not correlated to the degree of fatty acid sensitivity. The most liposensitive yeast strain arose due to deletion of the "ARE2 required for viability" (ARV1) gene, encoding an evolutionarily conserved, potential lipid transporter that localizes to the endoplasmic reticulum membrane. Down-regulation of mammalian ARV1 in MIN6 pancreatic β-cells or HEK293 cells resulted in decreased neutral lipid synthesis, increased fatty acid sensitivity, and lipoapoptosis. Conversely, elevated expression of human ARV1 in HEK293 cells or mouse liver significantly increased triglyceride mass and lipid droplet number. The ARV1-induced hepatic triglyceride accumulation was accompanied by up-regulation of DGAT1, a triglyceride synthesis gene, and the fatty acid transporter, CD36. Furthermore, ARV1 was identified as a transcriptional of the protein peroxisome proliferator-activated receptor α (PPARα), a key regulator of lipid homeostasis whose transcriptional targets include DGAT1 and CD36. These results implicate ARV1 as a protective factor in lipotoxic diseases due to modulation of fatty acid metabolism. In conclusion, a lipotoxicity-based genetic screen in a model microorganism has identified 75 human genes that may play key roles in neutral lipid metabolism and disease.
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Jain V, Gupta A, Gulia A, Singhal M, Gulati S, Tiwari SC, Kumar A. Gelatin-thrombin hemostatic matrix injection to salvage refractory post-renal graft biopsy bleed. Indian J Nephrol 2013; 23:149-52. [PMID: 23716926 PMCID: PMC3658297 DOI: 10.4103/0971-4065.109447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 11/04/2022] Open
Abstract
Post-renal biopsy bleeding refractory to angioembolization usually requires graft nephrectomy as a life-saving measure. Gelatin-thrombin hemostatic matrix injection in the needle tract is a novel attempt to control bleeding in such cases and to salvage the allograft. We hereby describe two cases of post-graft biopsy bleed. Both these patients continued to bleed even after angioembolization. They were shifted to the operating room upon developing hypotension, having received multiple blood transfusions with the intention of performing graft nephrectomy to save their lives. However, bleeding was successfully controlled by using Gelatin-thrombin hemostatic matrix injection in the biopsy needle tract. Patients improved hemodynamically after the procedure. Graft function returned to normal in both the cases. At an average follow-up of 10.4 months, both the patients have shown stable graft functions.
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Affiliation(s)
- V Jain
- Department of Urology, Robotics and Renal Transplant, Fortis Flt. Lt. Rajan Dhall Hospital, New Delhi, India
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Chopra SM, Misra A, Gulati S, Gupta R. Overweight, obesity and related non-communicable diseases in Asian Indian girls and women. Eur J Clin Nutr 2013; 67:688-96. [PMID: 23612512 DOI: 10.1038/ejcn.2013.70] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Revised: 02/14/2013] [Accepted: 02/15/2013] [Indexed: 01/09/2023]
Abstract
The prevalence of obesity is rising globally and in India. Overweight, obesity and related diseases need to be delineated in Asian Indian women. A literature search was done using key words like 'obesity', 'Asian Indian women', 'body fat distribution', 'type 2 diabetes', 'fertility', 'polycystic ovarian disease', metabolic syndrome', 'cardiovascular disease', 'non-alcoholic fatty liver disease', 'gender', 'sex' and 'prevalence' up to September 2012 in Pubmed and Google Scholar search engines. This review highlights the Asian Indian body composition with regards to obesity and provides a collated perspective of gender-specific prevalence of the co-morbidities. Recent data show that women (range of prevalence of overweight and obesity from different studies 15-61%) have higher prevalence of overweight and obesity as compared with men (range of prevalence of overweight and obesity from different studies 12-54%) in India and that obesity is increasing in the youth. The prevalence of overweight and obesity in both men and women steeply rose in a Punjabi community from Jaipur. Importantly, prevalence of abdominal obesity has been consistently higher in women than in men. The lowest prevalence (6.0%) of type 2 diabetes mellitus in women is reported from South India (rural Andhra Pradesh; 2006) and the highest (14.0%) by the National Urban Diabetes Survey (2001). Although the clustering of cardiovascular disease risk factors was generally high, it increased further in post-menopausal women. There are a number of factors that predispose Indian women to obesity; sedentary behaviour, imbalanced diets, sequential and additive postpartum weight gain and further decrease in physical activity during this period and cultural issues. In view of these data, preventive measures should be specifically targeted to Indian women.
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Affiliation(s)
- S M Chopra
- National Diabetes Obesity and Cholesterol Foundation, New Delhi, India
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Falkard B, Kumar TRS, Hecht LS, Matthews KA, Henrich PP, Gulati S, Lewis RE, Manary MJ, Winzeler EA, Sinnis P, Prigge ST, Heussler V, Deschermeier C, Fidock D. A key role for lipoic acid synthesis during Plasmodium liver stage development. Cell Microbiol 2013; 15:1585-604. [PMID: 23490300 DOI: 10.1111/cmi.12137] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Revised: 03/01/2013] [Accepted: 03/07/2013] [Indexed: 12/24/2022]
Abstract
The successful navigation of malaria parasites through their life cycle, which alternates between vertebrate hosts and mosquito vectors, requires a complex interplay of metabolite synthesis and salvage pathways. Using the rodent parasite Plasmodium berghei, we have explored the synthesis and scavenging pathways for lipoic acid, a short-chain fatty acid derivative that regulates the activity of α-ketoacid dehydrogenases including pyruvate dehydrogenase. In Plasmodium, lipoic acid is either synthesized de novo in the apicoplast or is scavenged from the host into the mitochondrion. Our data show that sporozoites lacking the apicoplast lipoic acid protein ligase LipB are markedly attenuated in their infectivity for mice, and in vitro studies document a very late liver stage arrest shortly before the final phase of intra-hepaticparasite maturation. LipB-deficient asexual blood stage parasites show unimpaired rates of growth in normal in vitro or in vivo conditions. However, these parasites showed reduced growth in lipid-restricted conditions induced by treatment with the lipoic acid analogue 8-bromo-octanoate or with the lipid-reducing agent clofibrate. This finding has implications for understanding Plasmodium pathogenesis in malnourished children that bear the brunt of malarial disease. This study also highlights the potential of exploiting lipid metabolism pathways for the design of genetically attenuated sporozoite vaccines.
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Affiliation(s)
- Brie Falkard
- Department of Microbiology and Immunology, Columbia University Medical Center, New York, NY, USA
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Watt L, Dix D, Gulati S, Sung L, Klaassen RJ, Shaw NT, Klassen AF. Family-centred care: a qualitative study of Chinese and South Asian immigrant parents' experiences of care in paediatric oncology. Child Care Health Dev 2013; 39:185-93. [PMID: 22066491 DOI: 10.1111/j.1365-2214.2011.01342.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Over the past two decades, there is increasing emphasis being placed upon providing family-centred care (FCC) in paediatric oncology settings. However, there is a lack of knowledge of FCC in paediatric oncology from the perspectives of immigrant parents. The purpose of this paper is to describe Chinese and South Asian immigrant parents' experiences of FCC in paediatric oncology settings in Canada. METHODS This study adopted a constructivist grounded theory approach. Fifty first generation Chinese and South Asian parents of children with cancer who were at least 6 months post-diagnosis were recruited from six Canadian paediatric oncology centres. Interviews were conducted in English, Cantonese, Mandarin, Urdu, Punjabi or Hindi, and transcribed into English. Analysis involved line-by-line, focused and theoretical coding, and the use of the constant comparison method. RESULTS Findings indicated that overall parents were highly satisfied with the care and services they received, and their experiences were reflective of the key elements of FCC. However, there were some areas of concern identified by participants: parents not perceiving themselves as a member of the medical team; inconsistency in the quality and co-ordination of services among healthcare providers; disrespectful and mechanical manner of a few healthcare providers; and parents' discomfort with healthcare providers communicating sensitive health-related information directly with their child. CONCLUSIONS In order to successfully provide family-centred services to immigrant parents of children with cancer, better communication of the elements of FCC between healthcare staff and families is needed to negotiate a clear role for the parents as partners of the healthcare team. Moreover, a better understanding of how family relationships are structured in immigrant families will assist healthcare providers to balance the best interests of the child with that of the family as a unit.
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Affiliation(s)
- L Watt
- Department of Pediatrics, McMaster University, Hamilton, ON, Canada
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Tripathi M, Jain DC, Devi MG, Jain S, Saxena V, Chandra PS, Radhakrishnan K, Behari M, Gupta M, Puri V, Mehndiratta MM, Bala K, Anand KS, Rawat S, Shah PU, Gulati S, Johri S, Nadkarni VV, Chandra PS, Bachani D. Need for a national epilepsy control program. Ann Indian Acad Neurol 2012; 15:89-93. [PMID: 22566719 PMCID: PMC3345606 DOI: 10.4103/0972-2327.94989] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Revised: 02/08/2012] [Accepted: 02/14/2012] [Indexed: 11/29/2022] Open
Abstract
This article briefly outlines the proposed national epilepsy control program. The content of the article is based on four meetings held by invitation of the Ministry of Health. Invitees by ministry – Drs. D. C. Jain, M. Gourie Devi, V. Saxena, S. Jain, P. Satish. Chandra, M. Gupta, K. Bala, V. Puri, K. S. Anand, S. Gulati, S. Johri, P. S. Chandra, M. Behari, K. Radhakrishnan, D. Bachani. Presentations were made by Dr. M. Tripathi.The program will involve all neurologists across the country in teaching and training at state levels and a central monitoring committee.
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Affiliation(s)
- M Tripathi
- Department of Neurology, All India Institute of Medical Sciences, Delhi, India
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Cuomo K, Koy G, Fenner D, Gulati S. 5. Use of a heart failure device diagnostics coordinator. Heart Lung 2012. [DOI: 10.1016/j.hrtlng.2012.04.036] [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]
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Gulati S, Watt L, Shaw N, Sung L, Poureslami IM, Klaassen R, Dix D, Klassen AF. Communication and language challenges experienced by Chinese and South Asian immigrant parents of children with cancer in Canada: implications for health services delivery. Pediatr Blood Cancer 2012; 58:572-8. [PMID: 21370432 DOI: 10.1002/pbc.23054] [Citation(s) in RCA: 39] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Accepted: 01/03/2011] [Indexed: 11/07/2022]
Abstract
BACKGROUND Language is an important aspect of health literacy and plays a vital role in families' ability to access and use health information and resources. Our study explored the role of communication and language in the healthcare experiences of immigrant parents of children with cancer living in Canada. PROCEDURE We used a grounded theory approach. Chinese and South Asian parents of children 6 months post-diagnosis were recruited from six Canadian pediatric oncology centers. Semi-structured interviews were conducted in Cantonese, Mandarin, Hindi, Punjabi, Urdu, or English. Questions relevant to communication included: how parents navigated the healthcare system; nature of interpreter services and translated materials; and suggestions about how to improve services. Analysis involved line-by-line, focused and theoretical coding, and constant comparison. RESULTS Thirty-one (62%) parents reported no difficulty communicating with healthcare providers in English, while 13 (26%) parents struggled with English, and six (12%) parents could not communicate in English. Communication challenges influenced parents' role in caring for their child and made it difficult to learn complex medical terminology. Interpreting services were sometimes inadequate or not accessible. Parents occasionally missed out on services and resources, reported limited availability of linguistically and culturally appropriate information, and experienced a lack of social integration in the healthcare process. CONCLUSION Language ability played an essential role in parents' healthcare experiences for pragmatic and social purposes. Language challenges can heighten systemic and socio-cultural barriers to accessing health information and resources. The provision of enhanced culturally and linguistically sensitive services may support immigrant families in their caregiving role.
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Affiliation(s)
- Sonia Gulati
- Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
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Klassen A, Gulati S, Dix D. Health care providers' perspectives about working with parents of children with cancer: a qualitative study. J Pediatr Oncol Nurs 2012; 29:92-7. [PMID: 22415857 DOI: 10.1177/1043454212438405] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Research to understand the sources of stress and job satisfaction in pediatric oncology staff is limited. The aim of the authors' qualitative study was to describe the key work-related demands and rewards in relation to working closely with parents from the perspective of health care providers (HCPs). Semistructured interviews were conducted with 13 doctors, 9 nurses, 5 social workers, and 6 child life specialists. Line-by-line, focused, and theoretical coding was used to establish categories and themes. Constant comparisons were used to examine the relationships within and across codes and categories. Interviewing continued until no new themes emerged. HCPs found it rewarding when they established close or long-term relationships with parents and to helped families through the entire cancer journey, including palliative care. HCPs found it challenging to work with complex families; with parents who are demanding, rude, or angry; with parents who have differing views about the treatments and palliative care; and with having to relay bad news to parents. Future research could explore the relationship between the factors that the authors have identified and burnout syndrome.
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Horvath PO, Czermin B, Gulati S, Pyle A, Hassani A, Foley C, Taylor RW, Chinnery PF. 003 Adult-onset cerebellar ataxia due to mutations in the CABC1/ADCK3 gene. J Neurol Psychiatry 2012. [DOI: 10.1136/jnnp-2011-301993.45] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Abstract
Gingival overgrowth is a common adverse effect of therapy with Phenytoin, having important medical and cosmetic implications. Poor periodontal hygiene is an important risk factor for severity of Phenytoin-induced gingival overgrowth (PIGO), which is a time-dependent process. There is complex interplay of altered fibroblast biology, connective tissue turnover, inflammatory processes, and growth factors on a background of genetic susceptibility to produce increase in various components of interstitial matrix in PIGO tissue. Treatment options have included change of PHT to another anti-seizure drug, measures to improve periodontal hygiene and gingivectomy. There is conclusive evidence that folic acid supplementation significantly decreases the incidence of PIGO.
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Affiliation(s)
- R Arya
- Division of Pediatric Neurology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
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Klassen AF, Gulati S, Granek L, Rosenberg-Yunger ZRS, Watt L, Sung L, Klaassen R, Dix D, Shaw NT. Understanding the health impact of caregiving: a qualitative study of immigrant parents and single parents of children with cancer. Qual Life Res 2011; 21:1595-605. [DOI: 10.1007/s11136-011-0072-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/17/2011] [Indexed: 11/27/2022]
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Mazari FAK, Khan JA, Carradice D, Samuel N, Abdul Rahman MNA, Gulati S, Lee HLD, Mehta TA, McCollum PT, Chetter IC. Randomized clinical trial of percutaneous transluminal angioplasty, supervised exercise and combined treatment for intermittent claudication due to femoropopliteal arterial disease. Br J Surg 2011; 99:39-48. [DOI: 10.1002/bjs.7710] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/05/2011] [Indexed: 11/10/2022]
Abstract
Abstract
Background
The aim was to compare percutaneous transluminal angioplasty (PTA), a supervised exercise programme (SEP) and combined treatment (PTA plus SEP) for intermittent claudication due to femoropopliteal arterial disease.
Methods
Consenting patients with femoropopliteal arterial lesions were randomized to one of three treatment arms: PTA, SEP, or PTA plus SEP. All patients received optimal medical treatment. Patients were assessed at baseline and 1, 3, 6 and 12 months after intervention. Clinical (ankle pressures, walking distances, symptoms) and quality-of-life (QoL) outcomes (Short Form 36, VascuQol) were analysed.
Results
A total of 178 patients (108 men, median age 70 years) were included. All three treatment groups demonstrated significant clinical and QoL improvements. One year after PTA (60 patients, 8 withdrew), 37 patients (71 per cent) had improved (16 mild, 16 moderate, 5 marked), nine (17 per cent) showed no improvement and six (12 per cent) had deteriorated. After SEP (60 patients, 14 withdrew), 32 patients (70 per cent) had improved (19 mild, 10 moderate, 3 marked), six (13 per cent) showed no improvement and eight (17 per cent) had deteriorated. After PTA plus SEP (58 patients, 11 withdrew), 40 patients (85 per cent) had improved (18 mild, 20 moderate, 2 marked), seven (15 per cent) showed no improvement and none had deteriorated. On intergroup analysis, PTA and SEP alone were equally effective in improving clinical outcomes, although the effect was short-lived. PTA plus SEP produced a more sustained clinical improvement, but there was no significant QoL advantage.
Conclusion
For patients with intermittent claudication due to femoropopliteal disease, PTA, SEP, and PTA plus SEP were all equally effective in improving walking distance and QoL after 12 months. Registration number: NCT00798850 (http://www.clinicaltrials.gov). Copyright © 2011 British Journal of Surgery Society Ltd. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- F A K Mazari
- Academic Vascular Surgical Unit, University of Hull, Hull, UK
| | - J A Khan
- Academic Vascular Surgical Unit, University of Hull, Hull, UK
| | - D Carradice
- Academic Vascular Surgical Unit, University of Hull, Hull, UK
| | - N Samuel
- Academic Vascular Surgical Unit, University of Hull, Hull, UK
| | | | - S Gulati
- Academic Vascular Surgical Unit, University of Hull, Hull, UK
| | - H L D Lee
- Academic Vascular Surgical Unit, University of Hull, Hull, UK
| | - T A Mehta
- Academic Vascular Surgical Unit, University of Hull, Hull, UK
| | - P T McCollum
- Academic Vascular Surgical Unit, University of Hull, Hull, UK
| | - I C Chetter
- Academic Vascular Surgical Unit, University of Hull, Hull, UK
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