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Kotecha D, Mak J, Sharma N, Boulton R, Disney B, Bhala N, Verma A. A multicentre review of acute upper gastrointestinal bleeding; a raised urea:creatinine ratio aids diagnosis. Clin Med (Lond) 2019. [DOI: 10.7861/clinmedicine.19-3s-s3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kotecha D, Mak J, Sharma N, Boulton R, Disney B, Bhala N, Verma A. A multicentre review of acute upper gastrointestinal bleeding; a raised urea:creatinine ratio aids diagnosis. Clin Med (Lond) 2019. [DOI: 10.7861/clinmedicine.19-3-s3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Gautam N, Sharma N. Traditional Fermented Indian Foods: A Treasure Hunt for Rare Lactic Acid Bacteria. JOURNAL OF FOOD QUALITY AND HAZARDS CONTROL 2019. [DOI: 10.18502/jfqhc.6.2.952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
The article's abstract is no available.
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Jat R, Rai R, Jakhar S, Beniwal S, Sharma N, Kumar H. Experience of prophylactic cranial irradiation in extensive stage small cell lung cancer at a regional cancer center in India. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz071.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lenka J, Sharma N, Sheppard T. BREATHING A SIGH OF RELIEF: A CASE OF REFRACTORY NONSPECIFIC INTERSTITIAL PNEUMONIA RESPONSIVE TO RITUXIMAB. Chest 2019. [DOI: 10.1016/j.chest.2019.02.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Sethi J, Rosa GG, Patel K, Sharma N. Predicting Long Term Survival in Lung Transplant: Analysis of United Network for Organ Sharing (UNOS) Database. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Lenka J, Sharma N. ALL THAT IS A MASS IS NOT A TUMOR: PULMONARY IGG4 DISEASE – THE NEW MASQUERADER? Chest 2019. [DOI: 10.1016/j.chest.2019.02.137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Kajaria A, Sharma N, Sharma S, Pradhan S, Mandal A, Aggarwal L. Monte Carlo Study of Unflattened Photon Beams Shaped by Multileaf Collimator. J Biomed Phys Eng 2019; 9:137-150. [PMID: 31214519 PMCID: PMC6538911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2016] [Accepted: 06/15/2016] [Indexed: 11/02/2022]
Abstract
INTRODUCTION This study investigates basic dosimetric properties of unflattened 6 MV photon beam shaped by multileaf collimator and compares them with those of flattened beams. MATERIALS AND METHODS Monte Carlo simulation model using BEAM code was developed for a 6MV photon beam based on Varian Clinic 600 unique performance linac operated with and without a flattening filter in beam line. Dosimetric features including lateral profiles, central axis depth dose, photon and electron spectra were calculated for flattened and unflattened cases, separately. RESULTS An increase in absolute depth dose with a factor of more than 2.4 was observed for unflattened beam which was dependent on depth. PDDs values were found to be lower for unflattened beam for all field sizes. Significant decrease in calculated mlc leakage was observed when the flattening filter was removed from the beam line. The total scatter factor, SCP was found to show less variation with field sizes for unflattened beam indicating a decrease in head scatter. The beam profiles for unflattened case are found to have lower relative dose value in comparison with flattened beam near the field edge, and it falls off faster with distance. CONCLUSION Our study showed that increase in the dose rate and lower peripheral dose could be considered as realistic advantages for unflattened 6MV photon beams.
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Lenka J, Sharma N. THE DOMINO EFFECT: EUGLYCEMIC DIABETIC KETOACIDOSIS FROM ACUTE PANCREATITIS AFTER SITAGLIPTIN USE IN TYPE 1 DIABETES MELLITUS. Chest 2019. [DOI: 10.1016/j.chest.2019.02.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Sharma N, Goh J, Cooney R, Pathmakanthan S, Cooper S. Young GI angle: New starter GI residents. United European Gastroenterol J 2019; 7:453-454. [PMID: 31019715 DOI: 10.1177/2050640619833555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Sharma N, Kolekar M, Jha K, Kumar Y. EEG and Cognitive Biomarkers Based Mild Cognitive Impairment Diagnosis. Ing Rech Biomed 2019. [DOI: 10.1016/j.irbm.2018.11.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Aksit MA, Bowling AD, Evans TA, Joynt AT, Osorio D, Patel S, West N, Merlo C, Sosnay PR, Cutting GR, Sharma N. Decreased mRNA and protein stability of W1282X limits response to modulator therapy. J Cyst Fibros 2019; 18:606-613. [PMID: 30803905 DOI: 10.1016/j.jcf.2019.02.009] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/14/2019] [Accepted: 02/14/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND Cell-based studies have shown that W1282X generates a truncated protein that can be functionally augmented by modulators. However, modulator treatment of primary cells from individuals who carry two copies of W1282X generates no functional CFTR. To understand the lack of response to modulators, we investigated the effect of W1282X on CFTR RNA transcript levels. METHODS qRT-PCR and RNA-seq were performed on primary nasal epithelial (NE) cells of a previously studied individual who is homozygous for W1282X, her carrier parents and control individuals without nonsense variants in CFTR. RESULTS CFTR RNA bearing W1282X in NE cells shows a steady-state level of 4.2 ± 0.9% of wild-type (WT) CFTR RNA in the mother and 12.4 ± 1.3% in the father. NMDI14, an inhibitor of nonsense-mediated mRNA decay (NMD), restored W1282X mRNA to almost 50% of WT levels in the parental NE cells. RNA-seq of the NE cells homozygous for W1282X showed that CFTR transcript level was reduced to 1.7% of WT (p-value: 4.6e-3). Negligible truncated CFTR protein was generated by Flp-In 293 cells stably expressing the W1282X EMG even though CFTR transcript was well above levels observed in the parents and proband. Finally, we demonstrated that NMD inhibition improved the stability and response to correctors of W1282X-CFTR protein expressed in the Flp-In-293 cells. CONCLUSION These results show that W1282X can cause substantial degradation of CFTR mRNA that has to be addressed before efforts aimed at augmenting CFTR protein function can be effective.
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Acharya S, Adamová D, Adolfsson J, Aggarwal MM, Aglieri Rinella G, Agnello M, Agrawal N, Ahammed Z, Ahn SU, Aiola S, Akindinov A, Al-Turany M, Alam SN, Albuquerque DSD, Aleksandrov D, Alessandro B, Alfaro Molina R, Ali Y, Alici A, Alkin A, Alme J, Alt T, Altenkamper L, Altsybeev I, Anaam MN, Andrei C, Andreou D, Andrews HA, Andronic A, Angeletti M, Anguelov V, Anson C, Antičić T, Antinori F, Antonioli P, Anwar R, Apadula N, Aphecetche L, Appelshäuser H, Arcelli S, Arnaldi R, Arnold OW, Arsene IC, Arslandok M, Augustinus A, Averbeck R, Azmi MD, Badalà A, Baek YW, Bagnasco S, Bailhache R, Bala R, Baldisseri A, Ball M, Baral RC, Barbano AM, Barbera R, Barile F, Barioglio L, Barnaföldi GG, Barnby LS, Barret V, Bartalini P, Barth K, Bartsch E, Bastid N, Basu S, Batigne G, Batyunya B, Batzing PC, Bazo Alba JL, Bearden IG, Beck H, Bedda C, Behera NK, Belikov I, Bellini F, Bello Martinez H, Bellwied R, Beltran LGE, Belyaev V, Bencedi G, Beole S, Bercuci A, Berdnikov Y, Berenyi D, Bertens RA, Berzano D, Betev L, Bhaduri PP, Bhasin A, Bhat IR, Bhatt H, Bhattacharjee B, Bhom J, Bianchi A, Bianchi L, Bianchi N, Bielčík J, Bielčíková J, Bilandzic A, Biro G, Biswas R, Biswas S, Blair JT, Blau D, Blume C, Boca G, Bock F, Bogdanov A, Boldizsár L, Bombara M, Bonomi G, Bonora M, Borel H, Borissov A, Borri M, Botta E, Bourjau C, Bratrud L, Braun-Munzinger P, Bregant M, Broker TA, Broz M, Brucken EJ, Bruna E, Bruno GE, Budnikov D, Buesching H, Bufalino S, Buhler P, Buncic P, Busch O, Buthelezi Z, Butt JB, Buxton JT, Cabala J, Caffarri D, Caines H, Caliva A, Calvo Villar E, Camacho RS, Camerini P, Capon AA, Carena F, Carena W, Carnesecchi F, Castillo Castellanos J, Castro AJ, Casula EAR, Ceballos Sanchez C, Chandra S, Chang B, Chang W, Chapeland S, Chartier M, Chattopadhyay S, Chattopadhyay S, Chauvin A, Cheshkov C, Cheynis B, Chibante Barroso V, Chinellato DD, Cho S, Chochula P, Chowdhury T, Christakoglou P, Christensen CH, Christiansen P, Chujo T, Chung SU, Cicalo C, Cifarelli L, Cindolo F, Cleymans J, Colamaria F, Colella D, Collu A, Colocci M, Concas M, Conesa Balbastre G, Conesa Del Valle Z, Contreras JG, Cormier TM, Corrales Morales Y, Cortese P, Cosentino MR, Costa F, Costanza S, Crkovská J, Crochet P, Cuautle E, Cunqueiro L, Dahms T, Dainese A, Dani S, Danisch MC, Danu A, Das D, Das I, Das S, Dash A, Dash S, De S, De Caro A, de Cataldo G, de Conti C, de Cuveland J, De Falco A, De Gruttola D, De Marco N, De Pasquale S, De Souza RD, Degenhardt HF, Deisting A, Deloff A, Delsanto S, Deplano C, Dhankher P, Di Bari D, Di Mauro A, Di Ruzza B, Diaz RA, Dietel T, Dillenseger P, Ding Y, Divià R, Djuvsland Ø, Dobrin A, Domenicis Gimenez D, Dönigus B, Dordic O, Doremalen LVR, Dubey AK, Dubla A, Ducroux L, Dudi S, Duggal AK, Dukhishyam M, Dupieux P, Ehlers RJ, Elia D, Endress E, Engel H, Epple E, Erazmus B, Erhardt F, Ersdal MR, Espagnon B, Eulisse G, Eum J, Evans D, Evdokimov S, Fabbietti L, Faggin M, Faivre J, Fantoni A, Fasel M, Feldkamp L, Feliciello A, Feofilov G, Fernández Téllez A, Ferretti A, Festanti A, Feuillard VJG, Figiel J, Figueredo MAS, Filchagin S, Finogeev D, Fionda FM, Fiorenza G, Flor F, Floris M, Foertsch S, Foka P, Fokin S, Fragiacomo E, Francescon A, Francisco A, Frankenfeld U, Fronze GG, Fuchs U, Furget C, Furs A, Fusco Girard M, Gaardhøje JJ, Gagliardi M, Gago AM, Gajdosova K, Gallio M, Galvan CD, Ganoti P, Garabatos C, Garcia-Solis E, Garg K, Gargiulo C, Gasik P, Gauger EF, Gay Ducati MB, Germain M, Ghosh J, Ghosh P, Ghosh SK, Gianotti P, Giubellino P, Giubilato P, Glässel P, Goméz Coral DM, Gomez Ramirez A, Gonzalez V, González-Zamora P, Gorbunov S, Görlich L, Gotovac S, Grabski V, Graczykowski LK, Graham KL, Greiner L, Grelli A, Grigoras C, Grigoriev V, Grigoryan A, Grigoryan S, Gronefeld JM, Grosa F, Grosse-Oetringhaus JF, Grosso R, Guernane R, Guerzoni B, Guittiere M, Gulbrandsen K, Gunji T, Gupta A, Gupta R, Guzman IB, Haake R, Habib MK, Hadjidakis C, Hamagaki H, Hamar G, Hamid M, Hamon JC, Hannigan R, Haque MR, Harlenderova A, Harris JW, Harton A, Hassan H, Hatzifotiadou D, Hayashi S, Heckel ST, Hellbär E, Helstrup H, Herghelegiu A, Hernandez EG, Herrera Corral G, Herrmann F, Hetland KF, Hilden TE, Hillemanns H, Hills C, Hippolyte B, Hohlweger B, Horak D, Hornung S, Hosokawa R, Hota J, Hristov P, Huang C, Hughes C, Huhn P, Humanic TJ, Hushnud H, Hussain N, Hussain T, Hutter D, Hwang DS, Iddon JP, Iga Buitron SA, Ilkaev R, Inaba M, Ippolitov M, Islam MS, Ivanov M, Ivanov V, Izucheev V, Jacak B, Jacazio N, Jacobs PM, Jadhav MB, Jadlovska S, Jadlovsky J, Jaelani S, Jahnke C, Jakubowska MJ, Janik MA, Jena C, Jercic M, Jevons O, Jimenez Bustamante RT, Jin M, Jones PG, Jusko A, Kalinak P, Kalweit A, Kang JH, Kaplin V, Kar S, Karasu Uysal A, Karavichev O, Karavicheva T, Karczmarczyk P, Karpechev E, Kebschull U, Keidel R, Keijdener DLD, Keil M, Ketzer B, Khabanova Z, Khan AM, Khan S, Khan SA, Khanzadeev A, Kharlov Y, Khatun A, Khuntia A, Kielbowicz MM, Kileng B, Kim B, Kim D, Kim DJ, Kim EJ, Kim H, Kim JS, Kim J, Kim M, Kim S, Kim T, Kim T, Kirsch S, Kisel I, Kiselev S, Kisiel A, Klay JL, Klein C, Klein J, Klein-Bösing C, Klewin S, Kluge A, Knichel ML, Knospe AG, Kobdaj C, Kofarago M, Köhler MK, Kollegger T, Kondratyeva N, Kondratyuk E, Konevskikh A, Konopka PJ, Konyushikhin M, Kovalenko O, Kovalenko V, Kowalski M, Králik I, Kravčáková A, Kreis L, Krivda M, Krizek F, Krüger M, Kryshen E, Krzewicki M, Kubera AM, Kučera V, Kuhn C, Kuijer PG, Kumar J, Kumar L, Kumar S, Kundu S, Kurashvili P, Kurepin A, Kurepin AB, Kuryakin A, Kushpil S, Kvapil J, Kweon MJ, Kwon Y, La Pointe SL, La Rocca P, Lai YS, Lakomov I, Langoy R, Lapidus K, Lardeux A, Larionov P, Laudi E, Lavicka R, Lea R, Leardini L, Lee S, Lehas F, Lehner S, Lehrbach J, Lemmon RC, León Monzón I, Lévai P, Li X, Li XL, Lien J, Lietava R, Lim B, Lindal S, Lindenstruth V, Lindsay SW, Lippmann C, Lisa MA, Litichevskyi V, Liu A, Ljunggren HM, Llope WJ, Lodato DF, Loginov V, Loizides C, Loncar P, Lopez X, López Torres E, Lowe A, Luettig P, Luhder JR, Lunardon M, Luparello G, Lupi M, Maevskaya A, Mager M, Mahmood SM, Maire A, Majka RD, Malaev M, Malik QW, Malinina L, Mal'Kevich D, Malzacher P, Mamonov A, Manko V, Manso F, Manzari V, Mao Y, Marchisone M, Mareš J, Margagliotti GV, Margotti A, Margutti J, Marín A, Markert C, Marquard M, Martin NA, Martinengo P, Martinez JL, Martínez MI, Martínez García G, Martinez Pedreira M, Masciocchi S, Masera M, Masoni A, Massacrier L, Masson E, Mastroserio A, Mathis AM, Matuoka PFT, Matyja A, Mayer C, Mazzilli M, Mazzoni MA, Meddi F, Melikyan Y, Menchaca-Rocha A, Meninno E, Mercado Pérez J, Meres M, Meza CS, Mhlanga S, Miake Y, Micheletti L, Mieskolainen MM, Mihaylov DL, Mikhaylov K, Mischke A, Mishra AN, Miśkowiec D, Mitra J, Mitu CM, Mohammadi N, Mohanty AP, Mohanty B, Mohisin Khan M, Moreira De Godoy DA, Moreno LAP, Moretto S, Morreale A, Morsch A, Mrnjavac T, Muccifora V, Mudnic E, Mühlheim D, Muhuri S, Mukherjee M, Mulligan JD, Munhoz MG, Münning K, Munoz MIA, Munzer RH, Murakami H, Murray S, Musa L, Musinsky J, Myers CJ, Myrcha JW, Naik B, Nair R, Nandi BK, Nania R, Nappi E, Narayan A, Naru MU, Nassirpour AF, Natal da Luz H, Nattrass C, Navarro SR, Nayak K, Nayak R, Nayak TK, Nazarenko S, Negrao De Oliveira RA, Nellen L, Nesbo SV, Neskovic G, Ng F, Nicassio M, Niedziela J, Nielsen BS, Nikolaev S, Nikulin S, Nikulin V, Noferini F, Nomokonov P, Nooren G, Noris JCC, Norman J, Nyanin A, Nystrand J, Oh H, Ohlson A, Oleniacz J, Oliveira Da Silva AC, Oliver MH, Onderwaater J, Oppedisano C, Orava R, Oravec M, Ortiz Velasquez A, Oskarsson A, Otwinowski J, Oyama K, Pachmayer Y, Pacik V, Pagano D, Paić G, Palni P, Pan J, Pandey AK, Panebianco S, Papikyan V, Pareek P, Park J, Parkkila JE, Parmar S, Passfeld A, Pathak SP, Patra RN, Paul B, Pei H, Peitzmann T, Peng X, Pereira LG, Pereira Da Costa H, Peresunko D, Perez Lezama E, Peskov V, Pestov Y, Petráček V, Petrovici M, Petta C, Pezzi RP, Piano S, Pikna M, Pillot P, Pimentel LODL, Pinazza O, Pinsky L, Pisano S, Piyarathna DB, Płoskoń M, Planinic M, Pliquett F, Pluta J, Pochybova S, Podesta-Lerma PLM, Poghosyan MG, Polichtchouk B, Poljak N, Poonsawat W, Pop A, Poppenborg H, Porteboeuf-Houssais S, Pozdniakov V, Prasad SK, Preghenella R, Prino F, Pruneau CA, Pshenichnov I, Puccio M, Punin V, Putschke J, Raha S, Rajput S, Rak J, Rakotozafindrabe A, Ramello L, Rami F, Raniwala R, Raniwala S, Räsänen SS, Rascanu BT, Ratza V, Ravasenga I, Read KF, Redlich K, Rehman A, Reichelt P, Reidt F, Ren X, Renfordt R, Reshetin A, Revol JP, Reygers K, Riabov V, Richert T, Richter M, Riedler P, Riegler W, Riggi F, Ristea C, Rode SP, Rodríguez Cahuantzi M, Røed K, Rogalev R, Rogochaya E, Rohr D, Röhrich D, Rokita PS, Ronchetti F, Rosas ED, Roslon K, Rosnet P, Rossi A, Rotondi A, Roukoutakis F, Roy C, Roy P, Rueda OV, Rui R, Rumyantsev B, Rustamov A, Ryabinkin E, Ryabov Y, Rybicki A, Saarinen S, Sadhu S, Sadovsky S, Šafařík K, Saha SK, Sahoo B, Sahoo P, Sahoo R, Sahoo S, Sahu PK, Saini J, Sakai S, Saleh MA, Sambyal S, Samsonov V, Sandoval A, Sarkar A, Sarkar D, Sarkar N, Sarma P, Sas MHP, Scapparone E, Scarlassara F, Schaefer B, Scheid HS, Schiaua C, Schicker R, Schmidt C, Schmidt HR, Schmidt MO, Schmidt M, Schmidt NV, Schukraft J, Schutz Y, Schwarz K, Schweda K, Scioli G, Scomparin E, Šefčík M, Seger JE, Sekiguchi Y, Sekihata D, Selyuzhenkov I, Senyukov S, Serradilla E, Sett P, Sevcenco A, Shabanov A, Shabetai A, Shahoyan R, Shaikh W, Shangaraev A, Sharma A, Sharma A, Sharma M, Sharma N, Sheikh AI, Shigaki K, Shimomura M, Shirinkin S, Shou Q, Shtejer K, Sibiriak Y, Siddhanta S, Sielewicz KM, Siemiarczuk T, Silvermyr D, Simatovic G, Simonetti G, Singaraju R, Singh R, Singh R, Singhal V, Sinha T, Sitar B, Sitta M, Skaali TB, Slupecki M, Smirnov N, Snellings RJM, Snellman TW, Song J, Soramel F, Sorensen S, Sozzi F, Sputowska I, Stachel J, Stan I, Stankus P, Stenlund E, Stocco D, Storetvedt MM, Strmen P, Suaide AAP, Sugitate T, Suire C, Suleymanov M, Suljic M, Sultanov R, Šumbera M, Sumowidagdo S, Suzuki K, Swain S, Szabo A, Szarka I, Tabassam U, Takahashi J, Tambave GJ, Tanaka N, Tarhini M, Tariq M, Tarzila MG, Tauro A, Tejeda Muñoz G, Telesca A, Terrevoli C, Teyssier B, Thakur D, Thakur S, Thomas D, Thoresen F, Tieulent R, Tikhonov A, Timmins AR, Toia A, Topilskaya N, Toppi M, Torales-Acosta F, Torres SR, Tripathy S, Trogolo S, Trombetta G, Tropp L, Trubnikov V, Trzaska WH, Trzcinski TP, Trzeciak BA, Tsuji T, Tumkin A, Turrisi R, Tveter TS, Ullaland K, Umaka EN, Uras A, Usai GL, Utrobicic A, Vala M, Van Hoorne JW, van Leeuwen M, Vande Vyvre P, Varga D, Vargas A, Vargyas M, Varma R, Vasileiou M, Vasiliev A, Vauthier A, Vázquez Doce O, Vechernin V, Veen AM, Vercellin E, Vergara Limón S, Vermunt L, Vernet R, Vértesi R, Vickovic L, Viinikainen J, Vilakazi Z, Villalobos Baillie O, Villatoro Tello A, Vinogradov A, Virgili T, Vislavicius V, Vodopyanov A, Völkl MA, Voloshin K, Voloshin SA, Volpe G, von Haller B, Vorobyev I, Voscek D, Vranic D, Vrláková J, Wagner B, Wang H, Wang M, Watanabe Y, Weber M, Weber SG, Wegrzynek A, Weiser DF, Wenzel SC, Wessels JP, Westerhoff U, Whitehead AM, Wiechula J, Wikne J, Wilk G, Wilkinson J, Willems GA, Williams MCS, Willsher E, Windelband B, Witt WE, Xu R, Yalcin S, Yamakawa K, Yano S, Yin Z, Yokoyama H, Yoo IK, Yoon JH, Yurchenko V, Zaccolo V, Zaman A, Zampolli C, Zanoli HJC, Zardoshti N, Zarochentsev A, Závada P, Zaviyalov N, Zbroszczyk H, Zhalov M, Zhang X, Zhang Y, Zhang Z, Zhao C, Zherebchevskii V, Zhigareva N, Zhou D, Zhou Y, Zhou Z, Zhu H, Zhu J, Zhu Y, Zichichi A, Zimmermann MB, Zinovjev G, Zmeskal J, Zou S. Azimuthal Anisotropy of Heavy-Flavor Decay Electrons in p-Pb Collisions at sqrt[s_{NN}]=5.02 TeV. PHYSICAL REVIEW LETTERS 2019; 122:072301. [PMID: 30848618 DOI: 10.1103/physrevlett.122.072301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 10/16/2018] [Indexed: 06/09/2023]
Abstract
Angular correlations between heavy-flavor decay electrons and charged particles at midrapidity (|η|<0.8) are measured in p-Pb collisions at sqrt[s_{NN}]=5.02 TeV. The analysis is carried out for the 0%-20% (high) and 60%-100% (low) multiplicity ranges. The jet contribution in the correlation distribution from high-multiplicity events is removed by subtracting the distribution from low-multiplicity events. An azimuthal modulation remains after removing the jet contribution, similar to previous observations in two-particle angular correlation measurements for light-flavor hadrons. A Fourier decomposition of the modulation results in a positive second-order coefficient (v_{2}) for heavy-flavor decay electrons in the transverse momentum interval 1.5<p_{T}<4 GeV/c in high-multiplicity events, with a significance larger than 5σ. The results are compared with those of charged particles at midrapidity and those of inclusive muons at forward rapidity. The v_{2} measurement of open heavy-flavor particles at midrapidity in small collision systems could provide crucial information to help interpret the anisotropies observed in such systems.
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Al Amri W, Verghese E, Stead L, Hanby A, Sharma N, Hughes T. Abstract P3-06-19: MUC17 and PCNX1 as mediators of chemotherapy response in breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p3-06-19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Breast cancer is a heterogeneous disease and accumulating evidence suggests that treatment failure may be driven by intra-tumour heterogeneity (ITH). Utilising the current protocol for neoadjuvant (pre-surgery) chemotherapy (NAC) provides the opportunity to study molecular genetic changes between pre- and post-therapy by assessing pre-therapy biopsies and post-therapy surgical resections.
Whole exome sequencing was performed on matched pre- and post-treatment cancer cells from 6 patients with oestrogen receptor positive breast cancers that showed partial responses to the chemotherapeutic epirubicin. Data analysis was performed to determine differences in genetic aberrations between pre- and post-NAC, and in particular to identify evidence of consistent selection by therapy of aberrations that therefore may define chemotherapy resistance or sensitivity.
There were extensive differences in the range of genetic aberrations between pre- and post-NAC. 48 genes were identified for further study based on evidence of mutations conferring a selective advantage or disadvantage during chemotherapeutic response. The relevance of these was screened using siRNA knock-down and assessment of response to chemotherapeutic drug using cell viability assays in vitro. Two genes were taken forward. Potential loss-of-function mutations in the MUC17 gene were selected against during therapy in patients, and in accordance with this MUC17 knock-down was associated with increased sensitivity in vitro. Potential loss-of-function mutations in the PCNX1 gene were selected for during therapy in patients, and in accordance with this PCNX1 knock-down was associated with resistance. Further work was done to investigate mechanisms by which these genes modify cellular chemotherapy response, by examining drug loading and ABC transporter expression levels. Data indicate that both genes impact on drug loading, potentially through modulating ABC transporter activities. Using available transcriptomic datasets, expression of neither gene correlated with breast cancer outcomes in mixed cohorts that received a wide-range of therapies, however, analysis of correlations between protein expression and outcomes specifically after chemotherapy are on-going. We conclude that MUC17 and PCNX1 are potential markers of response to chemotherapy in breast cancer, and therapeutic modulation of their activities could enhance chemotherapy responses.
Citation Format: Al Amri W, Verghese E, Stead L, Hanby A, Sharma N, Hughes T. MUC17 and PCNX1 as mediators of chemotherapy response in breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P3-06-19.
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Waugh JL, Kuster JK, Makhlouf ML, Levenstein JM, Multhaupt-Buell TJ, Warfield SK, Sharma N, Blood AJ. A registration method for improving quantitative assessment in probabilistic diffusion tractography. Neuroimage 2019; 189:288-306. [PMID: 30611874 DOI: 10.1016/j.neuroimage.2018.12.057] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 12/26/2018] [Accepted: 12/28/2018] [Indexed: 01/07/2023] Open
Abstract
Diffusion MRI-based probabilistic tractography is a powerful tool for non-invasively investigating normal brain architecture and alterations in structural connectivity associated with disease states. Both voxelwise and region-of-interest methods of analysis are capable of integrating population differences in tract amplitude (streamline count or density), given proper alignment of the tracts of interest. However, quantification of tract differences (between groups, or longitudinally within individuals) has been hampered by two related features of white matter. First, it is unknown to what extent healthy individuals differ in the precise location of white matter tracts, and to what extent experimental factors influence perceived tract location. Second, white matter lacks the gross neuroanatomical features (e.g., gyri, histological subtyping) that make parcellation of grey matter plausible - determining where tracts "should" lie within larger white matter structures is difficult. Accurately quantifying tractographic connectivity between individuals is thus inherently linked to the difficulty of identifying and aligning precise tract location. Tractography is often utilized to study neurological diseases in which the precise structural and connectivity abnormalities are unknown, underscoring the importance of accounting for individual differences in tract location when evaluating the strength of structural connectivity. We set out to quantify spatial variance in tracts aligned through a standard, whole-brain registration method, and to assess the impact of location mismatch on groupwise assessments of tract amplitude. We then developed a method for tract alignment that enhances the existing standard whole brain registration, and then tested whether this method improved the reliability of groupwise contrasts. Specifically, we conducted seed-based probabilistic diffusion tractography from primary motor, supplementary motor, and visual cortices, projecting through the corpus callosum. Streamline counts decreased rapidly with movement from the tract center (-35% per millimeter); tract misalignment of a few millimeters caused substantial compromise of amplitude comparisons. Alignment of tracts "peak-to-peak" is essential for accurate amplitude comparisons. However, for all transcallosal tracts registered through the whole-brain method, the mean separation distance between an individual subject's tract and the average tract (3.2 mm) precluded accurate comparison: at this separation, tract amplitudes were reduced by 74% from peak value. In contrast, alignment of subcortical tracts (thalamo-putaminal, pallido-rubral) was substantially better than alignment for cortical tracts; whole-brain registration was sufficient for these subcortical tracts. We demonstrated that location mismatches in cortical tractography were sufficient to produce false positive and false negative amplitude estimates in both groupwise and longitudinal comparisons. We then showed that our new tract alignment method substantially reduced location mismatch and improved both reliability and statistical power of subsequent quantitative comparisons.
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Srivastav A, Sharma N, Khadayat S. Commentry on: Combined transcranial direct current stimulation and breathing controlled electrical stimulation for the management of neuropathic pain after spinal cord injury. J Rehabil Med 2019; 51:622-623. [DOI: 10.2340/16501977-2577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Vyas S, Ansari M, Prakash V, Sharma N, Kashinath, Patil N. Teat Characteristics Of Indian Dromedary Camel (Camelus dromedarius). J CAMEL PRACT RES 2019. [DOI: 10.5958/2277-8934.2019.00024.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Sharma P, Wadhwan V, Sharma N. Reliability of determining the age of majority: a comparison between measurement of open apices of third molars and Demirjian stages. THE JOURNAL OF FORENSIC ODONTO-STOMATOLOGY 2018; 36:2-9. [PMID: 30712026 PMCID: PMC6626538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
AIM This study examines the open apices of third molars indiscriminating between individuals who are or are not 18 years of age or older and to assign a cut-off for estimation of the age of 18 years. Furthermore, this method was compared to those based on Demirjian's stages 8 and 9. METHODOLOGY Orthopantomographs (OPGs) of 1062 individuals (14 and 23 years) were assessed, to verify Cameriere's third molar maturity index (I3M). The apical ends of the roots of the left mandibular third molar were analysed. Mineralization of the third molar was also evaluated. RESULTS A cut-off value of I3M =0.08 was taken. The sensitivity of this test was 70.76% and specificity was 82%. The results of the test showed a better specificity for Stage 9 and better sensitivity for stage 8 for adult age. Accuracy was 74.58% for third molar maturity index as compared to 72.41% for stage 9.
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Sharma N, Hui T, Wong HC, Srivastava S, Teh M, Yeoh KG, Ho KY. Risk stratifying the screening of Barrett's esophagus: An Asian perspective. JGH OPEN 2018; 1:68-73. [PMID: 30483537 PMCID: PMC6207036 DOI: 10.1002/jgh3.12013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Accepted: 08/12/2017] [Indexed: 11/27/2022]
Abstract
Background and Aim Barrett's esophagus (BE) is a premalignant condition for esophageal adenocarcinoma. Although risk factors exist for screening patients in the West, we aimed to determine the factors in terms of demographics and symptoms for patients in an Asian setting. Methods We recruited 1378 patients over a 7‐year period as part of an ongoing gastric cancer screening program. An appropriately designed questionnaire was utilized to determine the necessary risk factors and symptoms with endoscopic analysis and subsequent histological confirmation as the gold standard. We utilized the existence of intestinal metaplasia of the distal esophagus as the primary diagnostic pathology. Results We demonstrated that no symptoms were indicative of BE in an Asian setting. Age (odds ratio 1.081, 95% confidence interval 1.022–1.143) and male gender (odds ratio 4.808, 95% confidence interval 1.727–13.33) proved significant demographic factors for the presence of intestinal metaplasia (P 0.007, 0.003, respectively). Conclusions We advocate the utilization of increasing age and male gender as the primary risk factors for patients at risk of BE. We also recommend astute examination of the distal esophagus whilst patients undergo simultaneous gastric cancer screening.
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Thomas NWD, Mattek N, Riley T, Reynolds C, Austin J, Sharma N, Marcoe J. ESTABLISHING OBJECTIVE DIGITAL BIOMARKERS RELATED TO TIME AND EFFORT SPENT ON CAREGIVING ACTIVITIES. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.3110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Wild K, Mattek N, Sharma N, Riley T, Kaye J. DO SUBTLE BEHAVIORAL CHANGES PREDICT INCREASED CARE NEEDS? FINDINGS FROM AN IN-HOME MONITORING TECHNOLOGY PLATFORM. Innov Aging 2018. [DOI: 10.1093/geroni/igy031.3445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Sharma L, De S, Kandpal P, Olaniya MP, Yadav S, Bhardwaj T, Thorat P, Panja S, Arora P, Sharma N, Agarwal A, Senguttuvan TD, Ojha VN, Aswal DK. Necessity of ‘Two Time Zones: IST-I (UTC + 5 : 30 h) and IST-II (UTC + 6 : 30 h)’ in India and Its Implementation. CURR SCI INDIA 2018. [DOI: 10.18520/cs/v115/i7/1252-1261] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Sharma N, Bag S, Biswas K, Pal M, Paul R, Chatterjee J. Combinatorial Characterization of Saliva for Oral Precancer Diagnostics. J Glob Oncol 2018. [DOI: 10.1200/jgo.18.85500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background: Saliva based diagnostic can play an important role in the translational research related to cancer diagnostics and treatment. It is easily available, noninvasive, low storage cost, has less contamination chances with simple collection procedure. Cancers related to tobacco use, including oral cancer account for about 30% of all cancers in males and females. Five years' survival rate remains the same even after decades of advancement of detection, prevention, and treatment of OSCC (oral squamous cell carcinoma) mainly due to late diagnosis of oral potentially malignant disorders (OPMDs). Aim: Combinatorial characterization of saliva, endorsing multidimensional spectroscopic signatures using suitably designed biochamber. Methods: Eighteen saliva samples (6 normal, 6 OSF [oral submucous fibrosis, a type of OPMD] and 6 confirmed OSCC) were collected from GNIDSR (Guru Nanak Institute of Dental Science and Research) Kolkata. Ethical approval was obtained for the study and all the participants were explained the objectives of the study and a written informed consent was obtained from them. Participant's demographic detail and clinical characteristics were also recorded. The participants were asked not to consume food 1 hour before sample collection and were suggested to rinse their mouth 30 minutes prior to saliva expectoration to minimize the contamination of food in saliva. Empty, sterile, graded tubes were used for this purpose. The subjects were asked not to clear nose or throat during the process of saliva expectoration to avoid forced phlegm from other part of the respiratory tract. The saliva samples were then immediately transferred to −20 degrees and later in −80 degrees for long storage. The electrical impedance (EI) of saliva was measured in custom made biochambers with copper electrodes. The EI was measured for the frequency sweep from 20 Hz to 2 MHz using an impedance analyzer. Apart from EI measurement, the corresponding samples were subjected to FTIR (Fourier-transform IR spectroscopy) analysis. SPSS and OMNIC software were used for the data analysis of EI and FTIR respectively. Results: [Table: see text][Table: see text][Table: see text][ Table A , B & C represents descriptive statistics, correlation matrix and component matrix respectively. The multivariate analysis of the FTIR data indicates the significant differences ( P < 0.005) among the different study groups such as normal, OSF and OSCC. The eigen values (normal 0.917, OSF 0.962, OSCC 0.975) from component matrix analysis also indicate the same. Conclusion: The spectroscopic characterization (EI and FTIR) of saliva was effective in evaluating normal and OPMD condition. This noninvasive paradigm can serve as a complimentary technique to the existing gold standard methods for the early detection of oral cancer.
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Dhaked S, Sharma N, Chopra KK, Khanna A, Kumar R. Treatment seeking pathways in pediatric tuberculosis patients attending DOTS centers in urban areas of Delhi. Indian J Tuberc 2018; 65:308-314. [PMID: 30522618 DOI: 10.1016/j.ijtb.2018.06.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 06/06/2018] [Accepted: 06/22/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND The treatment seeking pathways prior to initiation of Direct Observed Treatment Short-course Therapy (DOTS), provides the extent of patient and health system delays among pediatric tuberculosis (TB) patients. OBJECTIVES The study attempted to understand the treatment seeking pathways of pediatric TB patients under revised national tuberculosis control program (RNTCP). STUDY DESIGN AND SETTING It was a prospective observational study carried out from January 2015 to December 2015. A predesigned, pretested and semi-structured questionnaire was used to interview 141 caregivers of pediatric patients (0-14 years) at two chest clinics selected purposively. RESULTS Thirteen different treatment seeking pathways were identified and fever was the commonest symptom (41.8%) for seeking care from 1st health facility. Median time taken from onset of symptoms to first consultation varied from 1 to 144 weeks. More than half of the study subjects were first taken to a private practitioner (64.5%) followed by a pharmacist (19.1%) and trust in provider was the commonest reason for choosing the first care-provider in 52 (41.1%), followed by easy access or convenience in 49 (34.8%). CONCLUSION A significant delay was found in treatment initiation of patients with extra pulmonary tuberculosis (EPTB), those belonging to lower socio-economic class families, low literacy level of parents, who went to private facility first and availed more than three health facilities before diagnosis.
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Hamer M, Sharma N, Batty GD. Association of objectively measured physical activity with brain structure: UK Biobank study. J Intern Med 2018; 284:439-443. [PMID: 29776014 DOI: 10.1111/joim.12772] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Physical activity may be beneficial for cognition but mechanisms are unclear. We examined the association between objectively assessed physical activity and brain volume, with a focus on the hippocampus region. METHODS We used data from UK Biobank (n = 5272; aged 55.4 ± 7.5 years; 45.6% men) collected through 2013-2016. Participants wore the Axivity AX3 wrist-worn triaxial accelerometer for 7 days to assess habitual physical activity. Structural magnetic resonance imaging was performed using a standard Siemens Skyra 3T running VD13A SP4 to obtain images of the brain. RESULTS There was an association between physical activity (per SD increase) and grey matter volume after adjustment for a range of covariates, although this association was only detected in older adults (>60 years old). We also observed associations of physical activity with both left (B = 0.52, 95% CI, 0.01, 1.03; P = 0.046) and right hippocampal volume (B = 0.59, 95% CI, 0.08, 1.10; P = 0.024) in covariate-adjusted models. CONCLUSION In summary, physical activity may play a role in the prevention of neurodegenerative diseases.
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Al-Kudhairi F, Kayyali R, Savickas V, Sharma N. A Qualitative Study Exploring the Role of Pharmacists in Medical Student Training for the Prescribing Safety Assessment. PHARMACY 2018; 6:pharmacy6030087. [PMID: 30134511 PMCID: PMC6164552 DOI: 10.3390/pharmacy6030087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 07/24/2018] [Accepted: 08/17/2018] [Indexed: 12/27/2022] Open
Abstract
Five years after the introduction of the Prescribing Safety Assessment (PSA) in the UK, the role pharmacists play to help prepare medical students for this challenge is uncertain. Our study explored pharmacists’ perceptions about their role in undergraduate medical training for the Prescribing Safety Assessment (PSA). One hundred and seventy-nine prospective participants from UK hospitals and education and training boards were emailed an interview schedule aimed at ascertaining their current involvement in undergraduate medical education, particularly the preparation for PSA. Responses received via email were thematically-analysed. A total of 27 hospital pharmacists and 3 pharmacists from local education and training boards participated in the interviews. Pharmacists were positive about their involvement in medical student training, recognising the added value they could provide in prescribing practice. However, respondents expressed concerns regarding resource availability and the need for formal educational practice mentoring. Despite a low response rate (17%), this research highlights the potential value of pharmacists’ input into medical education and the need for a discussion on strategies to expand this role to maximise the benefits from having a pharmacist skill mix when teaching safe prescribing.
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Egbe A, Al-Otaibi M, Sharma N, El-Harasis M. 2110Risk stratification and clinical outcomes after pulmonary valve replacement. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.2110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Egbe A, Al-Otaibi MA, Sharma N, El-Harasis M. P1614Right ventricular and pulmonary vascular function indices for risk stratification of patients with pulmonary regurgitation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sharma N, Chakraborty M, Neog NK, Bandyopadhyay M. Development and characterization of a helicon plasma source. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:083508. [PMID: 30184689 DOI: 10.1063/1.5030624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 08/02/2018] [Indexed: 06/08/2023]
Abstract
The Helicon Plasma Source (HeliPS) designed and developed at the Centre of Plasma Physics-Institute for Plasma Research is a versatile helicon plasma device, which operates in a wide range of magnetic field configurations from 50 G to 500 G. This device is dedicated to perform a broad range of research activities. The main objective for development of the HeliPS is to carry out studies on ion-ion plasmas in electronegative gases. In the near future, ion-ion plasmas will be formed in electronegative gases in the downstream of the plasma production region. Although the system is primarily designed to carry out ion-ion plasma experiments, the same system can also be used for experimental studies on some basic helicon plasma properties such as wave propagation, wave coupling, and plasma instability. At present, argon plasma is produced with a RF power supply of 13.56 MHz frequency. External circuit parameters, such as antenna current, plasma resistance (Rp), and internal parameters, such as electron density and temperature, are measured. The details of the experimental setup development, device characteristic, as well as preliminary plasma production and characterization to confirm occurrence of the helicon plasma in the system are presented in this article.
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Pinder S, Shaaban A, Deb R, Desai A, Gandhi A, Lee A, Pain S, Wilkinson L, Sharma N. NHS Breast Screening multidisciplinary working group guidelines for the diagnosis and management of breast lesions of uncertain malignant potential on core biopsy (B3 lesions). Clin Radiol 2018; 73:682-692. [DOI: 10.1016/j.crad.2018.04.004] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 04/11/2018] [Indexed: 10/28/2022]
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Arora D, Chashoo G, Singamaneni V, Sharma N, Gupta P, Jaglan S. Bacillus amyloliquefaciens induces production of a novel blennolide K in coculture of Setophoma terrestris. J Appl Microbiol 2018; 124:730-739. [PMID: 29288594 DOI: 10.1111/jam.13683] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 12/19/2017] [Accepted: 12/22/2017] [Indexed: 01/29/2023]
Abstract
AIMS The discovery of known bioactive chemical leads from microbial monocultures hinders the efficiency of drug discovery programmes. Therefore, in recent years, the use of fungal-bacterial coculture experiments has gained considerable attention due to their ability to generate new bioactive leads. In this work, fungal strain Setophoma terrestris was cocultured with Bacillus amyloliquifaciens to discover novel bioactive compounds. MATERIALS AND METHODS The bioactive methanolic coculture extract was chosen for the isolation of compounds by chromatographic methods. The isolated compounds were characterized by NMR and mass spectrometric techniques. CONCLUSION Coculture extract has resulted in the production of five blennolides. The novel compound, blennolide K was found active against PC-3 (prostate) and MCF-7 (breast) cell lines with an IC50 value of 3·7 ± 0·6 and 4·8 ± 0·4 μmol l-1 respectively. Furthermore, the nuclear morphology study in PC-3 cells after treatment with blennolide K, demonstrated chromatin condensation, formation of apoptotic bodies and shrinkage of cells. SIGNIFICANCE AND IMPACT OF THE STUDY To our knowledge, only few studies have reported the induction of bioactive compounds by coculture having long-distance inhibition morphology. This is principally due to the low occurrences of such morphology. Our study demonstrates the impact of coculture on production of new chemical leads in drug discovery programmes.
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Regmi GR, Huettmann F, Suwal MK, Nijman V, Nekaris KAI, Kandel K, Sharma N, Coudrat C. First open access ensemble climate envelope predictions of Assamese macaque Macaca assamensis in Asia: a new role model and assessment of endangered species. ENDANGER SPECIES RES 2018. [DOI: 10.3354/esr00888] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Sharma N, Periasamy C, Chaturvedi N. Performance Analysis of GaN Capping Layer Thickness on GaN/AlGaN/GaN High Electron Mobility Transistors. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2018; 18:4580-4587. [PMID: 29442634 DOI: 10.1166/jnn.2018.15350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this paper, we present an investigation of the impact of GaN capping layer and AlGaN layer thickness on the two-dimensional (2D)-electron mobility and the carrier concentration which was formed close to the AlGaN/GaN buffer layer for Al0.25Ga0.75N/GaN and GaN/Al0.25Ga0.75N/GaN heterostructures deposited on sapphire substrates. The results of our analysis clearly indicate that expanding the GaN capping layer thickness from 1 nm to 100 nm prompts an increment in the electron concentration at hetero interface. As consequence of which drain current was additionally increments with GaN cap layer thicknesses, and eventually saturates at approximately 1.85 A/mm for capping layer thickness greater than 40 nm. Interestingly, for the same structure, the 2D-electron mobility, decrease monotonically with GaN capping layer thickness, and saturate at approximately 830 cm2/Vs for capping layer thickness greater than 50 nm. A device with a GaN cap layer didn't exhibit gate leakage current. Furthermore, it was observed that the carrier concentration was first decrease 1.03 × 1019/cm3 to 6.65 × 1018/cm3 with AlGaN Layer thickness from 5 to 10 nm and after that it increases with the AlGaN layer thickness from 10 to 30 nm. The same trend was followed for electric field distributions. Electron mobility decreases monotonically with AlGaN layer thickness. Highest electron mobility 1354 cm2/Vs were recorded for the AlGaN layer thickness of 5 nm. Results obtained are in good agreement with published experimental data.
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Nasser M, Sharma N, Shewell P. Salmonella infected total hip replacement complicated by a Vancouver C peri-prosthetic fracture; Management, surgical technique, trials and tribulations. Int J Surg 2018. [DOI: 10.1016/j.ijsu.2018.05.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Sharma N. Special issue on Breast Imaging: part 2. Clin Radiol 2018; 73:680-681. [PMID: 29895384 DOI: 10.1016/j.crad.2018.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 05/21/2018] [Indexed: 10/14/2022]
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Gurmet R, Bharti U, Mir GJ, Sharma N. Cytological Variability in Artemisia L. inhabiting North-West Himalayas: B Chromosomes in Artemisia gmelini Weber ex Stechm. CYTOL GENET+ 2018. [DOI: 10.3103/s0095452718030052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sharma N, Hunt P, Hine B, Sharma N, Chung A, Swick R, Ruhnke I. Performance, egg quality, and liver lipid reserves of free-range laying hens naturally infected with Ascaridia galli. Poult Sci 2018; 97:1914-1921. [DOI: 10.3382/ps/pey068] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 02/08/2018] [Indexed: 01/20/2023] Open
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Sharma N, Akkoyunlu M, Rabin RL. Macrophages-common culprit in obesity and asthma. Allergy 2018; 73:1196-1205. [PMID: 29178573 DOI: 10.1111/all.13369] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/21/2017] [Indexed: 12/29/2022]
Abstract
Macrophages are essential innate immune cells that also regulate local metabolism. Endogenous or exogenous stimuli may polarize macrophages toward phenotypes that serve distinct innate immunological metabolic functions. IFN-γ or lipopolysaccharide (LPS) polarizes macrophages toward the M1, or "classically activated" phenotype that participates in defense against intracellular pathogens. IL-4, IL-13, or chitin polarizes macrophages toward the M2, or "alternatively activated" phenotype, which defends against multicellular nematodes and fungi. As macrophages polarize in local environments, M1 and M2 macrophages may coexist in different organs and may differentially affect asthma and obesity, two comorbid diseases where polarized macrophages contribute to their pathogenesis. While M1 macrophages are considered beneficial in asthma and contribute to the pathology of obesity, M2 macrophages contribute to the pathology of asthma, but limit metabolic syndrome associated with obesity. Here, we discuss the roles for M1 and M2 macrophages in asthma and obesity, and propose a model by which M1-mediated inflammation in adipose tissue enhances M2-mediated inflammation in the asthmatic lung.
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Raraigh K, Han S, Davis E, Evans T, Pellicore M, Mccague A, Joynt A, Lu Z, Atalar M, Sharma N, Sosnay P, Cutting G. WS17.3 Functional characterisation and CFTR2 disease liability assignment of 48 missense variants. J Cyst Fibros 2018. [DOI: 10.1016/s1569-1993(18)30216-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Yadav R, Sharma N, Khaneja R, Agarwal P, Kanga A, Behera D, Sethi S. Evaluation of the TB-LAMP assay for the rapid diagnosis of pulmonary tuberculosis in Northern India. Int J Tuberc Lung Dis 2018; 21:1150-1153. [PMID: 28911360 DOI: 10.5588/ijtld.17.0035] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING A tertiary care hospital in North India. OBJECTIVE To evaluate a commercial kit-based loop-mediated isothermal amplification (TB-LAMP) assay for the diagnosis of pulmonary tuberculosis (PTB). DESIGN A total of 530 patients presenting with PTB symptoms were enrolled and one sputum sample was collected from each patient. The TB-LAMP assay (Loopamp™ MTBC Detection kit) was performed on the raw sputum sample. The remaining sample was used for smear microscopy and mycobacterial culture. A cartridge-based nucleic acid amplification test (NAAT, Xpert® MTB/RIF assay) was also performed on the processed pellet. RESULTS The sensitivity and specificity of the TB-LAMP assay in culture-positive samples obtained from 453 patients presenting with PTB symptoms (77 specimens were excluded) were respectively 100% (95%CI 94.7-100) and 99.2% (95%CI 97.8-99.8). The sensitivity and specificity of Xpert in culture-positive samples were respectively 82.6% (95%CI 71.5-90.6) and 94.9% (95%CI 92.2-96.8). A concordance of 0.75 was obtained between the two NAATs (TB-LAMP assay and Xpert) using the κ statistic. CONCLUSION The TB-LAMP assay showed high sensitivity and specificity with limited requirement of testing infrastructure, and is thus a promising diagnostic tool for TB diagnosis in resource-poor settings.
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Sharma N, Kushwaha M, Arora D, Jain S, Singamaneni V, Sharma S, Shankar R, Bhushan S, Gupta P, Jaglan S. New cytochalasin from Rosellinia sanctae-cruciana, an endophytic fungus of Albizia lebbeck. J Appl Microbiol 2018; 125:111-120. [PMID: 29573314 DOI: 10.1111/jam.13764] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 12/26/2017] [Accepted: 03/12/2018] [Indexed: 01/18/2023]
Abstract
AIM To explore the potential of Rosellinia sanctae-cruciana an endophytic fungus associated with Albizia lebbeck for pharmaceutically important cytotoxic compounds. METHODS AND RESULTS One novel cytochalasin, named jammosporin A (1) and four known analogues (2-5) were isolated from the culture of the endophytic fungus R. sanctae-cruciana, harboured from the leaves of the medicinal plant A. lebbeck. Their structures were elucidated by extensive spectroscopic analyses including one-dimensional and two-dimensional nuclear magnetic resonance data along with MS data and by comparison with literature reports. In preliminary screening the ethyl acetate extract of the fungal culture was tested for cytotoxic activity against a panel of four cancer cell lines (MOLT-4, A549, MIA PaCa-2 and MDA-MB-231), and found to be active against MOLT-4 with an IC50 value of 10 μg ml-1 . Owing to the remarkable cytotoxic activity of the extract the isolated compounds (1-5) were evaluated for their cytototoxicity against the MOLT-4 cell line by MTT assay. Interestingly, compounds 1-2, 4 and 5 showed considerable cytotoxic potential against the human leukaemia cancer cell line (MOLT-4) with IC50 values of 20·0, 10·0, 8·0 and 6·0 μmol l-1 , respectively, while compound 3 showed an IC50 value of 25 μmol l-1 . This is the first report of the existence of this class of secondary metabolites in R. sanctae-cruciana fungus. CONCLUSION This study discovered a novel compound, named jammosporin A, isolated for the first time from R. sanctae-cruciana, an endophytic fungus of A. lebbeck with anticancer activity against the MOLT-4 cell line. SIGNIFICANCE AND IMPACT OF THE STUDY Rosellinia sanctae-cruciana represents an interesting source of a new compound with bioactive potential as a therapeutic agent against a human leukaemia cancer cell line (MOLT-4).
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Mazari FAK, Sharma N, Reid D, Horgan K. The need for triple assessment and predictors for diagnosis of breast cancer in patients <40 years of age. Clin Radiol 2018; 73:758.e19-758.e25. [PMID: 29731127 DOI: 10.1016/j.crad.2018.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 03/28/2018] [Indexed: 11/28/2022]
Abstract
AIM To assess the safety of selective use of triple assessment with omission of radiological assessment proposed in patients <40-years old. MATERIALS AND METHODS Data were collected retrospectively for all patients seen in the one-stop breast clinic between January 2014 and August 2015. Demographics, symptoms, diagnostics, and treatment details were recorded. Subgroup and logistic regression analysis was performed to identify predictors for breast cancer. RESULTS Of the 3,305 patients included, 95.6% (n=3,161) were first-time referrals. 57.6% (n=1,903) had a breast lump, and 4% (n=133) had a high-risk family history; 75.6% (n=2,499) underwent imaging and 16.7% (n=552) underwent a biopsy. The median age was 29 years (interquartile range [IQR]=25-34). Breast cancer was diagnosed in 29 cases (0.88%) and 3.2% (n=105) had surgery. Median referral-to-diagnosis time was 13 days (IQR=9-14) and referral-to-surgery time was 44 days (IQR=34-95). Patients with breast cancer were significantly older (33 versus 28 years, p=0.016). All patients were first-time referrals. Most patients had a breast lump with low suspicion on clinical examination and breast cancer identified on imaging. Time-to-diagnosis (12 versus 14 days, p=0.017) and time-to-surgery (37 versus 67 days, p=0.012) was significantly shorter in the breast cancer group. Comparative older age (odds ratio [OR]=1.08, 95% confidence interval [CI]: 1.01-1.15) and breast lump (OR=11.43,95% CI: 2.72-48.07) were the only significant predictors of cancer on uni/multivariate regression. CONCLUSIONS Triple assessment is also the best practice for all patients in the younger age group. This cohort should not be treated any differently regarding one-stop clinic infrastructure as the cancers detected were not clinically malignant. Missed cancers in this age group would have significant personal, clinical, and legal consequences.
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Bhala N, Cooney R, Critchlow T, Ghosh S, Glynn P, Iacucci M, Iqbal T, Pathmakanthan S, Sharma N, Shivaji U. 4.10-P14A 10-year review of abdominal tuberculosis in a single multi-ethnic secondary care population in the UK. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky048.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Puri S, Sharma N, Newcombe R, Kaushik M, Al-Attar M, Pascaline S, Hajaj M, Wallis M, Elsberger B, Goyal A. Axillary tumour burden in women with one abnormal node on ultrasound compared to women with multiple abnormal nodes. Clin Radiol 2018; 73:391-395. [DOI: 10.1016/j.crad.2017.12.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 12/14/2017] [Indexed: 11/27/2022]
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Acharya S, Adamová D, Adolfsson J, Aggarwal MM, Aglieri Rinella G, Agnello M, Agrawal N, Ahammed Z, Ahmad N, Ahn SU, Aiola S, Akindinov A, Alam SN, Alba JLB, Albuquerque DSD, Aleksandrov D, Alessandro B, Alfaro Molina R, Alici A, Alkin A, Alme J, Alt T, Altenkamper L, Altsybeev I, Alves Garcia Prado C, Andrei C, Andreou D, Andrews HA, Andronic A, Anguelov V, Anson C, Antičić T, Antinori F, Antonioli P, Anwar R, Aphecetche L, Appelshäuser H, Arcelli S, Arnaldi R, Arnold OW, Arsene IC, Arslandok M, Audurier B, Augustinus A, Averbeck R, Azmi MD, Badalà A, Baek YW, Bagnasco S, Bailhache R, Bala R, Baldisseri A, Ball M, Baral RC, Barbano AM, Barbera R, Barile F, Barioglio L, Barnaföldi GG, Barnby LS, Barret V, Bartalini P, Barth K, Bartsch E, Basile M, Bastid N, Basu S, Batigne G, Batyunya B, Batzing PC, Bearden IG, Beck H, Bedda C, Behera NK, Belikov I, Bellini F, Bello Martinez H, Bellwied R, Beltran LGE, Belyaev V, Bencedi G, Beole S, Bercuci A, Berdnikov Y, Berenyi D, Bertens RA, Berzano D, Betev L, Bhasin A, Bhat IR, Bhati AK, Bhattacharjee B, Bhom J, Bianchi L, Bianchi N, Bianchin C, Bielčík J, Bielčíková J, Bilandzic A, Biro G, Biswas R, Biswas S, Blair JT, Blau D, Blume C, Boca G, Bock F, Bogdanov A, Boldizsár L, Bombara M, Bonomi G, Bonora M, Book J, Borel H, Borissov A, Borri M, Botta E, Bourjau C, Bratrud L, Braun-Munzinger P, Bregant M, Broker TA, Broz M, Brucken EJ, Bruna E, Bruno GE, Budnikov D, Buesching H, Bufalino S, Buhler P, Buncic P, Busch O, Buthelezi Z, Butt JB, Buxton JT, Cabala J, Caffarri D, Caines H, Caliva A, Calvo Villar E, Camerini P, Capon AA, Carena F, Carena W, Carnesecchi F, Castillo Castellanos J, Castro AJ, Casula EAR, Ceballos Sanchez C, Cerello P, Chandra S, Chang B, Chapeland S, Chartier M, Charvet JL, Chattopadhyay S, Chattopadhyay S, Chauvin A, Cherney M, Cheshkov C, Cheynis B, Chibante Barroso V, Chinellato DD, Cho S, Chochula P, Choi K, Chojnacki M, Choudhury S, Chowdhury T, Christakoglou P, Christensen CH, Christiansen P, Chujo T, Chung SU, Cicalo C, Cifarelli L, Cindolo F, Cleymans J, Colamaria F, Colella D, Collu A, Colocci M, Concas M, Conesa Balbastre G, Conesa Del Valle Z, Connors ME, Contreras JG, Cormier TM, Corrales Morales Y, Cortés Maldonado I, Cortese P, Cosentino MR, Costa F, Costanza S, Crkovská J, Crochet P, Cuautle E, Cunqueiro L, Dahms T, Dainese A, Danisch MC, Danu A, Das D, Das I, Das S, Dash A, Dash S, De S, De Caro A, de Cataldo G, de Conti C, de Cuveland J, De Falco A, De Gruttola D, De Marco N, De Pasquale S, De Souza RD, Degenhardt HF, Deisting A, Deloff A, Deplano C, Dhankher P, Di Bari D, Di Mauro A, Di Nezza P, Di Ruzza B, Diaz Corchero MA, Dietel T, Dillenseger P, Divià R, Djuvsland Ø, Dobrin A, Domenicis Gimenez D, Dönigus B, Dordic O, Doremalen LVV, Dubey AK, Dubla A, Ducroux L, Duggal AK, Dupieux P, Ehlers RJ, Elia D, Endress E, Engel H, Epple E, Erazmus B, Erhardt F, Espagnon B, Esumi S, Eulisse G, Eum J, Evans D, Evdokimov S, Fabbietti L, Faivre J, Fantoni A, Fasel M, Feldkamp L, Feliciello A, Feofilov G, Ferencei J, Fernández Téllez A, Ferreiro EG, Ferretti A, Festanti A, Feuillard VJG, Figiel J, Figueredo MAS, Filchagin S, Finogeev D, Fionda FM, Fiore EM, Floris M, Foertsch S, Foka P, Fokin S, Fragiacomo E, Francescon A, Francisco A, Frankenfeld U, Fronze GG, Fuchs U, Furget C, Furs A, Fusco Girard M, Gaardhøje JJ, Gagliardi M, Gago AM, Gajdosova K, Gallio M, Galvan CD, Ganoti P, Gao C, Garabatos C, Garcia-Solis E, Garg K, Gargiulo C, Gasik P, Gauger EF, Gay Ducati MB, Germain M, Ghosh J, Ghosh P, Ghosh SK, Gianotti P, Giubellino P, Giubilato P, Gladysz-Dziadus E, Glässel P, Goméz Coral DM, Gomez Ramirez A, Gonzalez AS, Gonzalez V, González-Zamora P, Gorbunov S, Görlich L, Gotovac S, Grabski V, Graczykowski LK, Graham KL, Greiner L, Grelli A, Grigoras C, Grigoriev V, Grigoryan A, Grigoryan S, Grion N, Gronefeld JM, Grosa F, Grosse-Oetringhaus JF, Grosso R, Gruber L, Guber F, Guernane R, Guerzoni B, Gulbrandsen K, Gunji T, Gupta A, Gupta R, Guzman IB, Haake R, Hadjidakis C, Hamagaki H, Hamar G, Hamon JC, Haque MR, Harris JW, Harton A, Hassan H, Hatzifotiadou D, Hayashi S, Heckel ST, Hellbär E, Helstrup H, Herghelegiu A, Herrera Corral G, Herrmann F, Hess BA, Hetland KF, Hillemanns H, Hills C, Hippolyte B, Hladky J, Hohlweger B, Horak D, Hornung S, Hosokawa R, Hristov P, Hughes C, Humanic TJ, Hussain N, Hussain T, Hutter D, Hwang DS, Iga Buitron SA, Ilkaev R, Inaba M, Ippolitov M, Irfan M, Isakov V, Ivanov M, Ivanov V, Izucheev V, Jacak B, Jacazio N, Jacobs PM, Jadhav MB, Jadlovsky J, Jaelani S, Jahnke C, Jakubowska MJ, Janik MA, Jayarathna PHSY, Jena C, Jena S, Jercic M, Jimenez Bustamante RT, Jones PG, Jusko A, Kalinak P, Kalweit A, Kang JH, Kaplin V, Kar S, Karasu Uysal A, Karavichev O, Karavicheva T, Karayan L, Karczmarczyk P, Karpechev E, Kebschull U, Keidel R, Keijdener DLD, Keil M, Ketzer B, Khabanova Z, Khan P, Khan SA, Khanzadeev A, Kharlov Y, Khatun A, Khuntia A, Kielbowicz MM, Kileng B, Kim B, Kim D, Kim DJ, Kim H, Kim JS, Kim J, Kim M, Kim M, Kim S, Kim T, Kirsch S, Kisel I, Kiselev S, Kisiel A, Kiss G, Klay JL, Klein C, Klein J, Klein-Bösing C, Klewin S, Kluge A, Knichel ML, Knospe AG, Kobdaj C, Kofarago M, Kollegger T, Kolojvari A, Kondratiev V, Kondratyeva N, Kondratyuk E, Konevskikh A, Konyushikhin M, Kopcik M, Kour M, Kouzinopoulos C, Kovalenko O, Kovalenko V, Kowalski M, Koyithatta Meethaleveedu G, Králik I, Kravčáková A, Krivda M, Krizek F, Kryshen E, Krzewicki M, Kubera AM, Kučera V, Kuhn C, Kuijer PG, Kumar A, Kumar J, Kumar L, Kumar S, Kundu S, Kurashvili P, Kurepin A, Kurepin AB, Kuryakin A, Kushpil S, Kweon MJ, Kwon Y, La Pointe SL, La Rocca P, Lagana Fernandes C, Lai YS, Lakomov I, Langoy R, Lapidus K, Lara C, Lardeux A, Lattuca A, Laudi E, Lavicka R, Lazaridis L, Lea R, Leardini L, Lee S, Lehas F, Lehner S, Lehrbach J, Lemmon RC, Lenti V, Leogrande E, León Monzón I, Lévai P, Li S, Li X, Lien J, Lietava R, Lim B, Lindal S, Lindenstruth V, Lindsay SW, Lippmann C, Lisa MA, Litichevskyi V, Ljunggren HM, Llope WJ, Lodato DF, Loenne PI, Loginov V, Loizides C, Loncar P, Lopez X, López Torres E, Lowe A, Luettig P, Luhder JR, Lunardon M, Luparello G, Lupi M, Lutz TH, Maevskaya A, Mager M, Mahajan S, Mahmood SM, Maire A, Majka RD, Malaev M, Malinina L, Mal'Kevich D, Malzacher P, Mamonov A, Manko V, Manso F, Manzari V, Mao Y, Marchisone M, Mareš J, Margagliotti GV, Margotti A, Margutti J, Marín A, Markert C, Marquard M, Martin NA, Martinengo P, Martinez JAL, Martínez MI, Martínez García G, Martinez Pedreira M, Mas A, Masciocchi S, Masera M, Masoni A, Masson E, Mastroserio A, Mathis AM, Matyja A, Mayer C, Mazer J, Mazzilli M, Mazzoni MA, Meddi F, Melikyan Y, Menchaca-Rocha A, Meninno E, Mercado Pérez J, Meres M, Mhlanga S, Miake Y, Mieskolainen MM, Mihaylov D, Mihaylov DL, Mikhaylov K, Milano L, Milosevic J, Mischke A, Mishra AN, Miśkowiec D, Mitra J, Mitu CM, Mohammadi N, Mohanty B, Mohisin Khan M, Montes E, Moreira De Godoy DA, Moreno LAP, Moretto S, Morreale A, Morsch A, Muccifora V, Mudnic E, Mühlheim D, Muhuri S, Mukherjee M, Mulligan JD, Munhoz MG, Münning K, Munzer RH, Murakami H, Murray S, Musa L, Musinsky J, Myers CJ, Myrcha JW, Naik B, Nair R, Nandi BK, Nania R, Nappi E, Narayan A, Naru MU, Natal da Luz H, Nattrass C, Navarro SR, Nayak K, Nayak R, Nayak TK, Nazarenko S, Nedosekin A, Negrao De Oliveira RA, Nellen L, Nesbo SV, Ng F, Nicassio M, Niculescu M, Niedziela J, Nielsen BS, Nikolaev S, Nikulin S, Nikulin V, Nobuhiro A, Noferini F, Nomokonov P, Nooren G, Noris JCC, Norman J, Nyanin A, Nystrand J, Oeschler H, Oh S, Ohlson A, Okubo T, Olah L, Oleniacz J, Oliveira Da Silva AC, Oliver MH, Onderwaater J, Oppedisano C, Orava R, Oravec M, Ortiz Velasquez A, Oskarsson A, Otwinowski J, Oyama K, Pachmayer Y, Pacik V, Pagano D, Pagano P, Paić G, Palni P, Pan J, Pandey AK, Panebianco S, Papikyan V, Pappalardo GS, Pareek P, Park J, Parmar S, Passfeld A, Pathak SP, Paticchio V, Patra RN, Paul B, Pei H, Peitzmann T, Peng X, Pereira LG, Pereira Da Costa H, Peresunko D, Perez Lezama E, Peskov V, Pestov Y, Petráček V, Petrov V, Petrovici M, Petta C, Pezzi RP, Piano S, Pikna M, Pillot P, Pimentel LODL, Pinazza O, Pinsky L, Piyarathna DB, Płoskoń M, Planinic M, Pliquett F, Pluta J, Pochybova S, Podesta-Lerma PLM, Poghosyan MG, Polichtchouk B, Poljak N, Poonsawat W, Pop A, Poppenborg H, Porteboeuf-Houssais S, Porter J, Pozdniakov V, Prasad SK, Preghenella R, Prino F, Pruneau CA, Pshenichnov I, Puccio M, Puddu G, Pujahari P, Punin V, Putschke J, Rachevski A, Raha S, Rajput S, Rak J, Rakotozafindrabe A, Ramello L, Rami F, Rana DB, Raniwala R, Raniwala S, Räsänen SS, Rascanu BT, Rathee D, Ratza V, Ravasenga I, Read KF, Redlich K, Rehman A, Reichelt P, Reidt F, Ren X, Renfordt R, Reolon AR, Reshetin A, Reygers K, Riabov V, Ricci RA, Richert T, Richter M, Riedler P, Riegler W, Riggi F, Ristea C, Rodríguez Cahuantzi M, Røed K, Rogochaya E, Rohr D, Röhrich D, Rokita PS, Ronchetti F, Rosas ED, Rosnet P, Rossi A, Rotondi A, Roukoutakis F, Roy A, Roy C, Roy P, Rubio Montero AJ, Rueda OV, Rui R, Rumyantsev B, Rustamov A, Ryabinkin E, Ryabov Y, Rybicki A, Saarinen S, Sadhu S, Sadovsky S, Šafařík K, Saha SK, Sahlmuller B, Sahoo B, Sahoo P, Sahoo R, Sahoo S, Sahu PK, Saini J, Sakai S, Saleh MA, Salzwedel J, Sambyal S, Samsonov V, Sandoval A, Sarkar D, Sarkar N, Sarma P, Sas MHP, Scapparone E, Scarlassara F, Scharenberg RP, Scheid HS, Schiaua C, Schicker R, Schmidt C, Schmidt HR, Schmidt MO, Schmidt M, Schmidt NV, Schuchmann S, Schukraft J, Schutz Y, Schwarz K, Schweda K, Scioli G, Scomparin E, Scott R, Šefčík M, Seger JE, Sekiguchi Y, Sekihata D, Selyuzhenkov I, Senosi K, Senyukov S, Serradilla E, Sett P, Sevcenco A, Shabanov A, Shabetai A, Shahoyan R, Shaikh W, Shangaraev A, Sharma A, Sharma A, Sharma M, Sharma M, Sharma N, Sheikh AI, Shigaki K, Shou Q, Shtejer K, Sibiriak Y, Siddhanta S, Sielewicz KM, Siemiarczuk T, Silvermyr D, Silvestre C, Simatovic G, Simonetti G, Singaraju R, Singh R, Singhal V, Sinha T, Sitar B, Sitta M, Skaali TB, Slupecki M, Smirnov N, Snellings RJM, Snellman TW, Song J, Song M, Soramel F, Sorensen S, Sozzi F, Spiriti E, Sputowska I, Srivastava BK, Stachel J, Stan I, Stankus P, Stenlund E, Stocco D, Storetvedt MM, Strmen P, Suaide AAP, Sugitate T, Suire C, Suleymanov M, Suljic M, Sultanov R, Šumbera M, Sumowidagdo S, Suzuki K, Swain S, Szabo A, Szarka I, Tabassam U, Takahashi J, Tambave GJ, Tanaka N, Tarhini M, Tariq M, Tarzila MG, Tauro A, Tejeda Muñoz G, Telesca A, Terasaki K, Terrevoli C, Teyssier B, Thakur D, Thakur S, Thomas D, Thoresen F, Tieulent R, Tikhonov A, Timmins AR, Toia A, Tripathy S, Trogolo S, Trombetta G, Tropp L, Trubnikov V, Trzaska WH, Trzeciak BA, Tsuji T, Tumkin A, Turrisi R, Tveter TS, Ullaland K, Umaka EN, Uras A, Usai GL, Utrobicic A, Vala M, Van Der Maarel J, Van Hoorne JW, van Leeuwen M, Vanat T, Vande Vyvre P, Varga D, Vargas A, Vargyas M, Varma R, Vasileiou M, Vasiliev A, Vauthier A, Vázquez Doce O, Vechernin V, Veen AM, Velure A, Vercellin E, Vergara Limón S, Vernet R, Vértesi R, Vickovic L, Vigolo S, Viinikainen J, Vilakazi Z, Villalobos Baillie O, Villatoro Tello A, Vinogradov A, Vinogradov L, Virgili T, Vislavicius V, Vodopyanov A, Völkl MA, Voloshin K, Voloshin SA, Volpe G, von Haller B, Vorobyev I, Voscek D, Vranic D, Vrláková J, Wagner B, Wang H, Wang M, Watanabe D, Watanabe Y, Weber M, Weber SG, Weiser DF, Wenzel SC, Wessels JP, Westerhoff U, Whitehead AM, Wiechula J, Wikne J, Wilk G, Wilkinson J, Willems GA, Williams MCS, Willsher E, Windelband B, Witt WE, Yalcin S, Yamakawa K, Yang P, Yano S, Yin Z, Yokoyama H, Yoo IK, Yoon JH, Yurchenko V, Zaccolo V, Zaman A, Zampolli C, Zanoli HJC, Zardoshti N, Zarochentsev A, Závada P, Zaviyalov N, Zbroszczyk H, Zhalov M, Zhang H, Zhang X, Zhang Y, Zhang C, Zhang Z, Zhao C, Zhigareva N, Zhou D, Zhou Y, Zhou Z, Zhu H, Zhu J, Zhu X, Zichichi A, Zimmermann A, Zimmermann MB, Zinovjev G, Zmeskal J, Zou S. D-Meson Azimuthal Anisotropy in Midcentral Pb-Pb Collisions at sqrt[s]_{NN}=5.02 TeV. PHYSICAL REVIEW LETTERS 2018; 120:102301. [PMID: 29570314 DOI: 10.1103/physrevlett.120.102301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 11/16/2017] [Indexed: 06/08/2023]
Abstract
The azimuthal anisotropy coefficient v_{2} of prompt D^{0}, D^{+}, D^{*+}, and D_{s}^{+} mesons was measured in midcentral (30%-50% centrality class) Pb-Pb collisions at a center-of-mass energy per nucleon pair sqrt[s_{NN}]=5.02 TeV, with the ALICE detector at the LHC. The D mesons were reconstructed via their hadronic decays at midrapidity, |y|<0.8, in the transverse momentum interval 1<p_{T}<24 GeV/c. The measured D-meson v_{2} has similar values as that of charged pions. The D_{s}^{+} v_{2}, measured for the first time, is found to be compatible with that of nonstrange D mesons. The measurements are compared with theoretical calculations of charm-quark transport in a hydrodynamically expanding medium and have the potential to constrain medium parameters.
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Cox KL, Sharma N, Taylor-Phillips S, Weeks J, Mills P, Lim A, Haigh I, Sever A, Wallis M, DeSilva T, Hashem M. Abstract PD2-04: Enhanced pre-operative axillary staging using intradermal microbubbles and contrast-enhanced ultrasound (CEUS) to identify and biopsy sentinel lymph nodes (SLN) in breast cancer is a reproducible technique and may characterise a group of patients who can completely avoid axillary surgery. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-pd2-04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Purpose
In patients with breast cancer, avoiding overtreatment of the axilla without compromising oncological outcomes is an important clinical goal. Previous work has suggested that patients with a normal grey-scale ultrasound and benign radiological core biopsy of SLN identified with CEUS are unlikely to have high volume axillary metastases. We therefore assessed the reproducibility of this biopsy technique in multiple centres and in 2 centres, measured the volume of axillary metastases at the end of primary surgical treatment in patients with a false negative SLN core biopsy.
Materials and Methods
Between 2010 and 2016 data were collected on patients with early breast cancer; 1361 from Maidstone Breast Clinic (1) (prospective, sequential), 376 from Tunbridge Wells Breast Clinic (2) (retrospective, sequential), 122 from Leeds Breast Clinic (3) (retrospective, selected) and 48 from Imperial College Healthcare (4) (prospective, selected). Patients at Centres 1 and 2 had a normal grey-scale axillary ultrasound. Patients had a CEUS SLN core biopsy procedure prior to axillary surgery (sentinel lymph node excision (SLNE)/axillary lymph node dissection (ALND)).
Results
SLN were successfully core biopsied (nodal tissue retrieved) in 80% (Centre 1), 79.5% (Centre 2), 77.5% (Centre 3) and 88% (Centre 4). Patients with invasive breast cancer and a successful SLN core biopsy went on to have primary surgical treatment, 816 (Centre 1), 215 (Centre 2), 80 (Centre 3) and 38 (Centre 4). As a test to identify all SLN metastases, the sensitivities were 47.5% (95% CI 39.9-55.1), 52.5% (95% CI 39.1-65.7), 46.4% (95% CI 27.5-66.1) and 45.5% (95% CI 16.7-76.6) respectively. Specificities; 99.7% (95% CI 98.9-100), 98.1 (95% CI 94.5-99.6), 100% (95% CI 93.2-100%) and 96.3% (95% CI 81-99.9) respectively. Negative predictive values; 87.3% (95% CI 84.6-89.6), 84.5% (95% CI 78.4-89.5), 86.9% (95% CI 82.4-90.3) and 86.2% (95% CI 78.4-91.5) respectively. At Centres 1 and 2, 13/637 (2%) and 6/183 (3%) respectively of patients with a benign microbubble/ CEUS SLN core biopsy had 2 or more LN macrometastases found at SLNE/ ALND.
Conclusion
The identification and biopsy of SLN using CEUS is a reproducible technique. Despite the low sensitivity, the negative predictive value is high and in a large cohort of patients from centres 1 and 2, only a small proportion of patients had 2 or more 2 lymph node macro metastases that were both occult on grey-scale ultrasound and missed by SLN core biopsy. In the era of axillary conservation, these results indicate that some patients may be suitable for complete radiological staging of the axilla and thus safely avoid axillary surgery.
Citation Format: Cox KL, Sharma N, Taylor-Phillips S, Weeks J, Mills P, Lim A, Haigh I, Sever A, Wallis M, DeSilva T, Hashem M. Enhanced pre-operative axillary staging using intradermal microbubbles and contrast-enhanced ultrasound (CEUS) to identify and biopsy sentinel lymph nodes (SLN) in breast cancer is a reproducible technique and may characterise a group of patients who can completely avoid axillary surgery [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr PD2-04.
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Sharma N. Special issue on breast imaging: part 1. Clin Radiol 2018; 73:325-326. [PMID: 29439777 DOI: 10.1016/j.crad.2018.01.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 01/16/2018] [Indexed: 11/18/2022]
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Sharma N, Hunt P, Hine B, McNally J, Sharma N, Iqbal Z, Normant C, Andronicos N, Swick R, Ruhnke I. Effect of an artificial Ascaridia galli infection on egg production, immune response, and liver lipid reserve of free-range laying hens. Poult Sci 2018; 97:494-502. [DOI: 10.3382/ps/pex347] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 10/18/2017] [Indexed: 11/20/2022] Open
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Sharma N, Hollingsworth M, Martin L, Restivo A. Assessing the value of entrustment during high fidelity simulation – an innovation pilot. MEDEDPUBLISH 2018. [DOI: 10.15694/mep.2018.0000022.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
This article was migrated. The article was not marked as recommended. Medical training is currently moving towards entrustment, in essence determining when a learner can be entrusted to perform an aspect of competency unsupervised. We are also seeing reliance on the use of high fidelity simulation during training which allows for the undertaking of medical or surgical scenarios in a safe learning environment. Here we describe a novel innovation merging both platforms in an undergraduate setting and the potential limitations.
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