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Ribonucleoprotein capture by in vivo expression of a designer pentatricopeptide repeat protein in Arabidopsis.

McDermott JJ, Watkins KP, Williams-Carrier R, Barkan A.

Plant Cell. 2019 May 23. pii: tpc.00177.2019. doi: 10.1105/tpc.19.00177. [Epub ahead of print]


Engineered RNA-binding protein for transgene activation in non-green plastids.

Yu Q, Barkan A, Maliga P.

Nat Plants. 2019 May;5(5):486-490. doi: 10.1038/s41477-019-0413-0. Epub 2019 Apr 29.


Engineered PPR proteins as inducible switches to activate the expression of chloroplast transgenes.

Rojas M, Yu Q, Williams-Carrier R, Maliga P, Barkan A.

Nat Plants. 2019 May;5(5):505-511. doi: 10.1038/s41477-019-0412-1. Epub 2019 Apr 29.


An RNA Chaperone-Like Protein Plays Critical Roles in Chloroplast mRNA Stability and Translation in Arabidopsis and Maize.

Jiang J, Chai X, Manavski N, Williams-Carrier R, He B, Brachmann A, Ji D, Ouyang M, Liu Y, Barkan A, Meurer J, Zhang L, Chi W.

Plant Cell. 2019 Jun;31(6):1308-1327. doi: 10.1105/tpc.18.00946. Epub 2019 Apr 8.


The Arabidopsis pentatricopeptide repeat protein LPE1 and its maize ortholog are required for translation of the chloroplast psbJ RNA.

Williams-Carrier R, Brewster C, Belcher SE, Rojas M, Chotewutmontri P, Ljungdahl S, Barkan A.

Plant J. 2019 Jul;99(1):56-66. doi: 10.1111/tpj.14308. Epub 2019 Apr 4.


Correction: Multilevel effects of light on ribosome dynamics in chloroplasts program genome-wide and psbA-specific changes in translation.

Chotewutmontri P, Barkan A.

PLoS Genet. 2019 Jan 3;15(1):e1007907. doi: 10.1371/journal.pgen.1007907. eCollection 2019 Jan.


Effects of RNA structure and salt concentration on the affinity and kinetics of interactions between pentatricopeptide repeat proteins and their RNA ligands.

McDermott JJ, Civic B, Barkan A.

PLoS One. 2018 Dec 21;13(12):e0209713. doi: 10.1371/journal.pone.0209713. eCollection 2018.


A machine learning approach to predict early outcomes after pituitary adenoma surgery.

Hollon TC, Parikh A, Pandian B, Tarpeh J, Orringer DA, Barkan AL, McKean EL, Sullivan SE.

Neurosurg Focus. 2018 Nov 1;45(5):E8. doi: 10.3171/2018.8.FOCUS18268.


Decreased quality of life (QoL) in hypopituitary patients: involvement of glucocorticoid replacement and radiation therapy.

Ajmal A, McKean E, Sullivan S, Barkan A.

Pituitary. 2018 Dec;21(6):624-630. doi: 10.1007/s11102-018-0918-y.


Efficient Replication of the Plastid Genome Requires an Organellar Thymidine Kinase.

Le Ret M, Belcher S, Graindorge S, Wallet C, Koechler S, Erhardt M, Williams-Carrier R, Barkan A, Gualberto JM.

Plant Physiol. 2018 Dec;178(4):1643-1656. doi: 10.1104/pp.18.00976. Epub 2018 Oct 10.


Correction to: Criteria for the definition of Pituitary Tumor Centers of Excellence (PTCOE): A Pituitary Society Statement.

Casanueva FF, Barkan AL, Buchfelder M, Klibanski A, Laws ER, Loeffler JS, Melmed S, Mortini P, Wass J, Giustina A; Pituitary Society, Expert Group on Pituitary Tumors.

Pituitary. 2018 Dec;21(6):663. doi: 10.1007/s11102-018-0912-4.


Coexisting pituitary and non-pituitary gigantism in the same family.

Marques P, Collier D, Barkan A, Korbonits M.

Clin Endocrinol (Oxf). 2018 Dec;89(6):887-888. doi: 10.1111/cen.13852. Epub 2018 Oct 10. No abstract available.


Unexpected functional versatility of the pentatricopeptide repeat proteins PGR3, PPR5 and PPR10.

Rojas M, Ruwe H, Miranda RG, Zoschke R, Hase N, Schmitz-Linneweber C, Barkan A.

Nucleic Acids Res. 2018 Nov 2;46(19):10448-10459. doi: 10.1093/nar/gky737.


The journey continues in Clinical Diabetes and Endocrinology.

Barkan A, Gianchandani R, Tan MH.

Clin Diabetes Endocrinol. 2018 Jul 31;4:17. doi: 10.1186/s40842-018-0067-2. eCollection 2018. No abstract available.


Multilevel effects of light on ribosome dynamics in chloroplasts program genome-wide and psbA-specific changes in translation.

Chotewutmontri P, Barkan A.

PLoS Genet. 2018 Aug 6;14(8):e1007555. doi: 10.1371/journal.pgen.1007555. eCollection 2018 Aug. Erratum in: PLoS Genet. 2019 Jan 3;15(1):e1007907.


Paraesophageal Hiatal Hernia Repair With Urinary Bladder Matrix Graft.

Howell RS, Fazzari M, Petrone P, Barkan A, Hall K, Servide MJ, Anduaga MF, Brathwaite CEM.

JSLS. 2018 Apr-Jun;22(2). pii: e2017.00100. doi: 10.4293/JSLS.2017.00100.


Stabilization and translation of synthetic operon-derived mRNAs in chloroplasts by sequences representing PPR protein-binding sites.

Legen J, Ruf S, Kroop X, Wang G, Barkan A, Bock R, Schmitz-Linneweber C.

Plant J. 2018 Apr;94(1):8-21. doi: 10.1111/tpj.13863.


Biochemical efficacy of long-acting lanreotide depot/Autogel in patients with acromegaly naïve to somatostatin-receptor ligands: analysis of three multicenter clinical trials.

Alquraini H, Del Pilar Schneider M, Mirakhur B, Barkan A.

Pituitary. 2018 Jun;21(3):283-289. doi: 10.1007/s11102-018-0867-5.


RNA-binding specificity landscapes of designer pentatricopeptide repeat proteins elucidate principles of PPR-RNA interactions.

Miranda RG, McDermott JJ, Barkan A.

Nucleic Acids Res. 2018 Mar 16;46(5):2613-2623. doi: 10.1093/nar/gkx1288.


Biochemical diagnosis of acromegaly without a typical clinical phenotype: what are the concerns?

Ribeiro-Oliveira A Jr, Barkan A.

Arch Endocrinol Metab. 2017 Oct;61(5):414-415. doi: 10.1590/2359-3997000000301. No abstract available.


Ventriculoscopic Surgery for Cystic Retrochiasmatic Craniopharyngiomas: Indications, Surgical Technique, and Short-Term Patient Outcomes.

Hollon TC, Savastano LE, Altshuler D, Barkan AL, Sullivan SE.

Oper Neurosurg (Hagerstown). 2018 Aug 1;15(2):109-119. doi: 10.1093/ons/opx220.


Ribosome Profiling in Maize.

Chotewutmontri P, Stiffler N, Watkins KP, Barkan A.

Methods Mol Biol. 2018;1676:165-183. doi: 10.1007/978-1-4939-7315-6_10.


Criteria for the definition of Pituitary Tumor Centers of Excellence (PTCOE): A Pituitary Society Statement.

Casanueva FF, Barkan AL, Buchfelder M, Klibanski A, Laws ER, Loeffler JS, Melmed S, Mortini P, Wass J, Giustina A; Pituitary Society, Expert Group on Pituitary Tumors.

Pituitary. 2017 Oct;20(5):489-498. doi: 10.1007/s11102-017-0838-2. Erratum in: Pituitary. 2018 Sep 20;:.


Surgical debulking of pituitary adenomas improves responsiveness to octreotide lar in the treatment of acromegaly.

Fahlbusch R, Kleinberg D, Biller B, Bonert V, Buchfelder M, Cappabianca P, Carmichael J, Chandler W, Colao A, George A, Klibanski A, Knopp E, Kreutzer J, Kundurti N, Lesser M, Mamelak A, Pivonello R, Post K, Swearingen B, Vance ML, Barkan A.

Pituitary. 2017 Dec;20(6):668-675. doi: 10.1007/s11102-017-0832-8.


Korsakoff syndrome from retrochiasmatic suprasellar lesions: rapid reversal after relief of cerebral compression in 4 cases.

Savastano LE, Hollon TC, Barkan AL, Sullivan SE.

J Neurosurg. 2018 Jun;128(6):1731-1736. doi: 10.3171/2017.1.JNS162719. Epub 2017 Jun 2.


PSA3, a Protein on the Stromal Face of the Thylakoid Membrane, Promotes Photosystem I Accumulation in Cooperation with the Assembly Factor PYG7.

Shen J, Williams-Carrier R, Barkan A.

Plant Physiol. 2017 Jul;174(3):1850-1862. doi: 10.1104/pp.17.00524. Epub 2017 May 18.


Translation and Co-translational Membrane Engagement of Plastid-encoded Chlorophyll-binding Proteins Are Not Influenced by Chlorophyll Availability in Maize.

Zoschke R, Chotewutmontri P, Barkan A.

Front Plant Sci. 2017 Mar 28;8:385. doi: 10.3389/fpls.2017.00385. eCollection 2017.


RNA-binding specificity landscape of the pentatricopeptide repeat protein PPR10.

Miranda RG, Rojas M, Montgomery MP, Gribbin KP, Barkan A.

RNA. 2017 Apr;23(4):586-599. doi: 10.1261/rna.059568.116. Epub 2017 Jan 20.


"Micromegaly": an update on the prevalence of acromegaly with apparently normal GH secretion in the modern era.

Butz LB, Sullivan SE, Chandler WF, Barkan AL.

Pituitary. 2016 Dec;19(6):547-551.


Increased Population Risk of AIP-Related Acromegaly and Gigantism in Ireland.

Radian S, Diekmann Y, Gabrovska P, Holland B, Bradley L, Wallace H, Stals K, Bussell AM, McGurren K, Cuesta M, Ryan AW, Herincs M, Hernández-Ramírez LC, Holland A, Samuels J, Aflorei ED, Barry S, Dénes J, Pernicova I, Stiles CE, Trivellin G, McCloskey R, Ajzensztejn M, Abid N, Akker SA, Mercado M, Cohen M, Thakker RV, Baldeweg S, Barkan A, Musat M, Levy M, Orme SM, Unterländer M, Burger J, Kumar AV, Ellard S, McPartlin J, McManus R, Linden GJ, Atkinson B, Balding DJ, Agha A, Thompson CJ, Hunter SJ, Thomas MG, Morrison PJ, Korbonits M.

Hum Mutat. 2017 Jan;38(1):78-85. doi: 10.1002/humu.23121. Epub 2016 Oct 4.


Optimal Cefazolin Prophylactic Dosing for Bariatric Surgery: No Need for Higher Doses or Intraoperative Redosing.

Chen X, Brathwaite CE, Barkan A, Hall K, Chu G, Cherasard P, Wang S, Nicolau DP, Islam S, Cunha BA.

Obes Surg. 2017 Mar;27(3):626-629. doi: 10.1007/s11695-016-2331-9.


Codon Optimization to Enhance Expression Yields Insights into Chloroplast Translation.

Kwon KC, Chan HT, León IR, Williams-Carrier R, Barkan A, Daniell H.

Plant Physiol. 2016 Sep;172(1):62-77. doi: 10.1104/pp.16.00981. Epub 2016 Jul 27.


Dynamics of Chloroplast Translation during Chloroplast Differentiation in Maize.

Chotewutmontri P, Barkan A.

PLoS Genet. 2016 Jul 14;12(7):e1006106. doi: 10.1371/journal.pgen.1006106. eCollection 2016 Jul.


A PPR protein in the PLS subfamily stabilizes the 5'-end of processed rpl16 mRNAs in maize chloroplasts.

Hammani K, Takenaka M, Miranda R, Barkan A.

Nucleic Acids Res. 2016 May 19;44(9):4278-88. doi: 10.1093/nar/gkw270. Epub 2016 Apr 19.


Corrigendum. ZmpTAC12 binds single-stranded nucleic acids and is essential for accumulation of the plastid-encoded polymerase complex in maize.

Pfalz J, Holtzegel U, Barkan A, Weisheit W, Mittag M, Pfannschmidt T.

New Phytol. 2016 Jan;209(2):886. doi: 10.1111/nph.13803. No abstract available.


The PPR-SMR protein PPR53 enhances the stability and translation of specific chloroplast RNAs in maize.

Zoschke R, Watkins KP, Miranda RG, Barkan A.

Plant J. 2016 Mar;85(5):594-606. doi: 10.1111/tpj.13093. Epub 2016 Feb 5.


Clinical case seminar: unraveling the mystery of abnormal thyroid function tests.

Barkan A, Koenig RJ.

Clin Diabetes Endocrinol. 2015 Sep 11;1:14. doi: 10.1186/s40842-015-0010-8. eCollection 2015.


Outcome of Transsphenoidal Surgery for Cushing Disease: A Single-Center Experience Over 32 Years.

Chandler WF, Barkan AL, Hollon T, Sakharova A, Sack J, Brahma B, Schteingart DE.

Neurosurgery. 2016 Feb;78(2):216-23. doi: 10.1227/NEU.0000000000001011.


The care continuum in acromegaly: how patients, nurses, and physicians can collaborate for successful treatment experiences.

Plunkett C, Barkan AL.

Patient Prefer Adherence. 2015 Jul 30;9:1093-9. doi: 10.2147/PPA.S84887. eCollection 2015.


Gene expression changes in subcutaneous adipose tissue due to Cushing's disease.

Hochberg I, Harvey I, Tran QT, Stephenson EJ, Barkan AL, Saltiel AR, Chandler WF, Bridges D.

J Mol Endocrinol. 2015 Oct;55(2):81-94. doi: 10.1530/JME-15-0119. Epub 2015 Jul 6.


Redesigning photosynthesis to sustainably meet global food and bioenergy demand.

Ort DR, Merchant SS, Alric J, Barkan A, Blankenship RE, Bock R, Croce R, Hanson MR, Hibberd JM, Long SP, Moore TA, Moroney J, Niyogi KK, Parry MA, Peralta-Yahya PP, Prince RC, Redding KE, Spalding MH, van Wijk KJ, Vermaas WF, von Caemmerer S, Weber AP, Yeates TO, Yuan JS, Zhu XG.

Proc Natl Acad Sci U S A. 2015 Jul 14;112(28):8529-36. doi: 10.1073/pnas.1424031112. Epub 2015 Jun 29.


The Role of Radiotherapy in Acromegaly.

Hannon MJ, Barkan AL, Drake WM.

Neuroendocrinology. 2016;103(1):42-9. doi: 10.1159/000435776. Epub 2015 Jun 17. Review.


Gene Expression Signature in Adipose Tissue of Acromegaly Patients.

Hochberg I, Tran QT, Barkan AL, Saltiel AR, Chandler WF, Bridges D.

PLoS One. 2015 Jun 18;10(6):e0129359. doi: 10.1371/journal.pone.0129359. eCollection 2015.


Genome-wide analysis of thylakoid-bound ribosomes in maize reveals principles of cotranslational targeting to the thylakoid membrane.

Zoschke R, Barkan A.

Proc Natl Acad Sci U S A. 2015 Mar 31;112(13):E1678-87. doi: 10.1073/pnas.1424655112. Epub 2015 Mar 16.


Large-scale genetic analysis of chloroplast biogenesis in maize.

Belcher S, Williams-Carrier R, Stiffler N, Barkan A.

Biochim Biophys Acta. 2015 Sep;1847(9):1004-16. doi: 10.1016/j.bbabio.2015.02.014. Epub 2015 Feb 26. Review.


The solution structure of the pentatricopeptide repeat protein PPR10 upon binding atpH RNA.

Gully BS, Cowieson N, Stanley WA, Shearston K, Small ID, Barkan A, Bond CS.

Nucleic Acids Res. 2015 Feb 18;43(3):1918-26. doi: 10.1093/nar/gkv027. Epub 2015 Jan 21.


ZmpTAC12 binds single-stranded nucleic acids and is essential for accumulation of the plastid-encoded polymerase complex in maize.

Pfalz J, Holtzegel U, Barkan A, Weisheit W, Mittag M, Pfannschmidt T.

New Phytol. 2015 May;206(3):1024-37. doi: 10.1111/nph.13248. Epub 2015 Jan 19. Erratum in: New Phytol. 2016 Jan;209(2):886.


A protein with an inactive pterin-4a-carbinolamine dehydratase domain is required for Rubisco biogenesis in plants.

Feiz L, Williams-Carrier R, Belcher S, Montano M, Barkan A, Stern DB.

Plant J. 2014 Dec;80(5):862-9. doi: 10.1111/tpj.12686.


A thylakoid membrane protein harboring a DnaJ-type zinc finger domain is required for photosystem I accumulation in plants.

Fristedt R, Williams-Carrier R, Merchant SS, Barkan A.

J Biol Chem. 2014 Oct 31;289(44):30657-67. doi: 10.1074/jbc.M114.587758. Epub 2014 Sep 16.


Ectopic prolactin secretion from a perivascular epithelioid cell tumor (PEComa).

Korytnaya E, Liu J, Camelo-Piragua S, Sullivan S, Auchus RJ, Barkan A.

J Clin Endocrinol Metab. 2014 Nov;99(11):3960-4. doi: 10.1210/jc.2014-2623. Epub 2014 Aug 15.


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