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Nicholas Beratis

TitlePROFESSOR
InstitutionMount Sinai
DepartmentPediatrics
Address

     Bibliographic 
     selected publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    1. Varvarigou AA, Fouzas S, Beratis NG. Effect of prenatal tobacco smoke exposure on fetal growth potential. J Perinat Med. 2010 Nov; 38(6):683-7.
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    2. Spiliotis BE, Alexandrides TK, Karystianos C, Vassilakos P, Zadik Z, Nikolakopoulou NM, Nikiforidis G, Beratis NG. The insulin-like growth factor-I (IGF-I) generation test as an indicator of growth hormone status. Hormones (Athens). 2009 Apr-Jun; 8(2):117-28.
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    3. Varvarigou AA, Liatsis SG, Vassilakos P, Decavalas G, Beratis NG. Effect of maternal smoking on cord blood estriol, placental lactogen, chorionic gonadotropin, FSH, LH, and cortisol. J Perinat Med. 2009; 37(4):364-9.
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    4. Varvarigou AA, Asimakopoulou A, Beratis NG. Impact of maternal smoking on birth size: effect of parity and sex dimorphism. Neonatology. 2009; 95(1):61-7.
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    5. Spiliotis BE, Papadimitriou DT, Alexandrides TK, Karystianos C, Nikiforidis G, Vassilakos P, Beratis NG, Casanueva FF. Combined growth hormone-releasing hormone and growth hormone-releasing peptide-6 test for the evaluation of growth hormone secretion in children with growth hormone deficiency and growth hormone neurosecretory dysfunction. Horm Res. 2008; 70(4):215-23.
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    6. Menti E, Lekka NP, Assimakopoulos K, Varvarigou A, Beratis NG, Beratis S. Smoking, psychosocial factors, psychopathologic behavior, and other related conditions in hospitalized youth suicide attempters. Compr Psychiatry. 2007 Nov-Dec; 48(6):522-8.
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    7. Beratis NG, Asimacopoulou A, Varvarigou A. Association of secondary sex ratio with smoking and parity. Fertil Steril. 2008 Mar; 89(3):662-7.
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    8. Kanellopoulos TA, Varvarigou AA, Karatza AA, Beratis NG. Course of growth during the first 6 years in children exposed in utero to tobacco smoke. Eur J Pediatr. 2007 Jul; 166(7):685-92.
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    9. Rojas-Gil AP, Ziros PG, Diaz L, Kletsas D, Basdra EK, Alexandrides TK, Zadik Z, Frank SJ, Papathanassopoulou V, Beratis NG, Papavassiliou AG, Spiliotis BE. Growth hormone/JAK-STAT axis signal-transduction defect. A novel treatable cause of growth failure. FEBS J. 2006 Aug; 273(15):3454-66.
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    10. Papadopoulos VG, Decavalas GO, Kondakis XG, Beratis NG. Vibroacoustic stimulation in abnormal biophysical profile: verification of facilitation of fetal well-being. Early Hum Dev. 2007 Mar; 83(3):191-7.
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    11. Varvarigou AA, Petsali M, Vassilakos P, Beratis NG. Increased cortisol concentrations in the cord blood of newborns whose mothers smoked during pregnancy. J Perinat Med. 2006; 34(6):466-70.
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    12. Anthracopoulos MB, Karatza AA, Davlouros PA, Chiladakis JA, Manolis AS, Beratis NG. Effects of two nebulization regimens on heart rate variability during acute asthma exacerbations in children. J Asthma. 2005 May; 42(4):273-9.
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    13. Beratis NG, Kaperonis A, Eliopoulou MI, Kourounis G, Tzingounis VA. Increased activity of lysosomal enzymes in the peritoneal fluid of patients with gynecologic cancers and pelvic inflammatory disease. J Cancer Res Clin Oncol. 2005 Jun; 131(6):371-6.
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    14. Syrogiannopoulos GA, Bozdogan B, Grivea IN, Ednie LM, Kritikou DI, Katopodis GD, Beratis NG, Applebaum PC. Two dosages of clarithromycin for five days, amoxicillin/clavulanate for five days or penicillin V for ten days in acute group A streptococcal tonsillopharyngitis. Pediatr Infect Dis J. 2004 Sep; 23(9):857-65.
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    15. Vlacha V, Eliopoulou M, Haidas S, Beratis NG. Correlation of cerebrospinal fluid beta-glucuronidase activity with plasma methotrexate concentrations in leukemic children receiving high-dose methotrexate. Pediatr Blood Cancer. 2004 Apr; 42(4):350-6.
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    16. Bogaert D, Hermans PW, Grivea IN, Katopodis GS, Mitchell TJ, Sluijter M, De Groot R, Beratis NG, Syrogiannopoulos GA. Molecular epidemiology of penicillin-susceptible non-beta-lactam-resistant Streptococcus pneumoniae isolates from Greek children. J Clin Microbiol. 2003 Dec; 41(12):5633-9.
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    17. Beratis NG, Eliopoulou MI, Syrogiannopoulos GA. Beta-glucuronidase in the diagnosis of bacterial meningitis and response to treatment. Acta Paediatr. 2003 Nov; 92(11):1272-6.
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    18. Syrogiannopoulos GA, Grivea IN, Ednie LM, Bozdogan B, Katopodis GD, Beratis NG, Davies TA, Appelbaum PC. Antimicrobial susceptibility and macrolide resistance inducibility of Streptococcus pneumoniae carrying erm(A), erm(B), or mef(A). Antimicrob Agents Chemother. 2003 Aug; 47(8):2699-702.
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    19. Karatza AA, Varvarigou A, Beratis NG. Growth up to 2 years in relationship to maternal smoking during pregnancy. Clin Pediatr (Phila). 2003 Jul-Aug; 42(6):533-41.
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    20. Chasiotis-Tourikis E, Varvarigou A, Yarmenitis S, Vandoros N, Beratis NG. Maternal smoking during pregnancy improves the anatomy of the hip joint in the female neonate. J Matern Fetal Neonatal Med. 2003 Jul; 14(1):45-50.
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    21. Syrogiannopoulos GA, Katopodis GD, Grivea IN, Beratis NG. Antimicrobial use and serotype distribution of nasopharyngeal Streptococcus pneumoniae isolates recovered from Greek children younger than 2 years old. Clin Infect Dis. 2002 Nov 15; 35(10):1174-82.
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    22. Beratis NG, Georgiou G, Eliopoulou M. Increased activity of lysosomal enzymes in the peritoneal fluid of bacterial peritonitis. Pediatrics. 2002 Mar; 109(3):E44.
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    23. Syrogiannopoulos GA, Grivea IN, Anastassiou ED, Triga MG, Dimitracopoulos GO, Beratis NG. Sterile cerebrospinal fluid pleocytosis in young infants with urinary tract infection. Pediatr Infect Dis J. 2001 Oct; 20(10):927-30.
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    24. Syrogiannopoulos GA, Grivea IN, Fitoussi F, Doit C, Katopodis GD, Bingen E, Beratis NG. High prevalence of erythromycin resistance of Streptococcus pyogenes in Greek children. Pediatr Infect Dis J. 2001 Sep; 20(9):863-8.
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    25. Chrysis DC, Alexandrides TK, Koromantzou E, Georgopoulos N, Vassilakos P, Kiess W, Kratsch J, Beratis NG, Spiliotis BE. Novel application of IGF-I and IGFBP-3 generation tests in the diagnosis of growth hormone axis disturbances in children with beta-thalassaemia. Clin Endocrinol (Oxf). 2001 Feb; 54(2):253-9.
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    26. Syrogiannopoulos GA, Bogaert D, Grivea IN, Beratis NG, De Groot R R, Hermans PW. Molecular epidemiology of penicillin-susceptible, multidrug-resistant serotype 6B pneumococci isolated from children in Greece. J Clin Microbiol. 2001 Feb; 39(2):581-5.
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    27. Syrogiannopoulos GA, Grivea IN, Tait-Kamradt A, Katopodis GD, Beratis NG, Sutcliffe J, Appelbaum PC, Davies TA. Identification of an erm(A) erythromycin resistance methylase gene in Streptococcus pneumoniae isolated in Greece. Antimicrob Agents Chemother. 2001 Jan; 45(1):342-4.
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    28. Bogaert D, Syrogiannopoulos GA, Grivea IN, de Groot R, Beratis NG, Hermans PW. Molecular epidemiology of penicillin-nonsusceptible Streptococcus pneumoniae among children in Greece. J Clin Microbiol. 2000 Dec; 38(12):4361-6.
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    29. Syrogiannopoulos GA, Grivea IN, Davies TA, Katopodis GD, Appelbaum PC, Beratis NG. Antimicrobial use and colonization with erythromycin-resistant Streptococcus pneumoniae in Greece during the first 2 years of life. Clin Infect Dis. 2000 Oct; 31(4):887-93.
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    30. Beratis NG, Varvarigou A, Katsibris J, Gartaganis SP. Vascular retinal abnormalities in neonates of mothers who smoked during pregnancy. J Pediatr. 2000 Jun; 136(6):760-6.
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    31. Syrogiannopoulos GA, Grivea IN, Katopodis GD, Geslin P, Jacobs MR, Beratis NG. Carriage of antibiotic-resistant Streptococcus pneumoniae in Greek infants and toddlers. Eur J Clin Microbiol Infect Dis. 2000 Apr; 19(4):288-93.
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    32. Beratis NG, Varvarigou A, Christophidou M, Vassilakos P, Tsapanos V, Kourounis G. Cord blood alpha-fetoprotein concentrations in term newborns of smoking mothers. Eur J Pediatr. 1999 Jul; 158(7):583-8.
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    33. Mirilas P, Fesel C, Guilbert B, Beratis NG, Avrameas S. Natural antibodies in childhood: development, individual stability, and injury effect indicate a contribution to immune memory. J Clin Immunol. 1999 Mar; 19(2):109-15.
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    34. Varvarigou A, Mantzoros CS, Beratis NG. Cord blood leptin concentrations in relation to intrauterine growth. Clin Endocrinol (Oxf). 1999 Feb; 50(2):177-83.
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    35. Triga MG, Syrogiannopoulos GA, Thoma KD, Fezoulidis IB, Pastromas VG, Beratis NG. Correlation of leucocyte count and erythrocyte sedimentation rate with the day of illness in presumed bacterial pneumonia of childhood. J Infect. 1998 Jan; 36(1):63-6.
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    36. Mantzoros CS, Varvarigou A, Kaklamani VG, Beratis NG, Flier JS. Effect of birth weight and maternal smoking on cord blood leptin concentrations of full-term and preterm newborns. J Clin Endocrinol Metab. 1997 Sep; 82(9):2856-61.
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    37. Syrogiannopoulos GA, Grivea IN, Beratis NG, Spiliopoulou AE, Fasola EL, Bajaksouzian S, Appelbaum PC, Jacobs MR. Resistance patterns of streptococcus pneumoniae from carriers attending day-care centers in southwestern Greece. Clin Infect Dis. 1997 Aug; 25(2):188-94.
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    38. Beratis NG, Mavrommatis T, Hatiris I, Kavaliotis J, Tsagaropoulou-Stiga H, Syrogiannopoulos GA. Increased activity of lysosomal acid hydrolases in the cell-free cerebrospinal fluid of bacterial meningitis. Pediatr Res. 1997 Feb; 41(2):235-41.
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    39. Korovessis P, Papanastasiou D, Tiniakou M, Beratis NG. Incidence of scoliosis in beta-thalassemia and follow-up evaluation. Spine (Phila Pa 1976). 1996 Aug 1; 21(15):1798-801.
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    40. Beratis NG, Panagoulias D, Varvarigou A. Increased blood pressure in neonates and infants whose mothers smoked during pregnancy. J Pediatr. 1996 Jun; 128(6):806-12.
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    41. Korovessis PG, Papanastasiou D, Tiniakou M, Beratis NG. Prevalence of scoliosis in beta-thalassemia. J Spinal Disord. 1996 Apr; 9(2):170-3.
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    42. Varvarigou A, Vagenakis AG, Makri M, Frimas C, Beratis NG. Prolactin and growth hormone in perinatal asphyxia. Biol Neonate. 1996; 69(2):76-83.
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    43. Syrogiannopoulos GA, Mitselos CJ, Beratis NG. Childhood bacterial meningitis in Southwestern Greece: a population-based study. Clin Infect Dis. 1995 Dec; 21(6):1471-3.
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    44. Syrogiannopoulos GA, Lourida AN, Theodoridou MC, Pappas IG, Babilis GC, Economidis JJ, Zoumboulakis DJ, Beratis NG, Matsaniotis NS. Dexamethasone therapy for bacterial meningitis in children: 2- versus 4-day regimen. J Infect Dis. 1994 Apr; 169(4):853-8.
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    45. Varvarigou A, Beratis NG, Makri M, Vagenakis AG. Increased levels and positive correlation between erythropoietin and hemoglobin concentrations in newborn children of mothers who are smokers. J Pediatr. 1994 Mar; 124(3):480-2.
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    46. Beratis NG, Varvarigou A, Makri M, Vagenakis AG. Prolactin, growth hormone and insulin-like growth factor-I in newborn children of smoking mothers. Clin Endocrinol (Oxf). 1994 Feb; 40(2):179-85.
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    47. Varvarigou A, Vagenakis AG, Makri M, Beratis NG. Growth hormone, insulin-like growth factor-I and prolactin in small for gestational age neonates. Biol Neonate. 1994; 65(2):94-102.
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    48. Syrogiannopoulos GA, Goumas PD, Haliotis FA, Lygatsikas CG, Spyropoulos CD, Beratis NG. Cefuroxime axetil in the treatment of acute otitis media in children. J Chemother. 1992 Aug; 4(4):221-4.
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    49. Beratis NG, Decavalas G, Ladas P. Low frequency of isozyme 2 acid a-glucosidase in Greece. Gene Geogr. 1992 Apr-Aug; 6(1-2):53-7.
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    50. Papanastasiou DA, Papanicolaou D, Magiakou AM, Beratis NG, Tzebelikos E, Papapetropoulos T. Peripheral neuropathy in patients with beta-thalassaemia. J Neurol Neurosurg Psychiatry. 1991 Nov; 54(11):997-1000.
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    51. Papageorgiou O, Papanastasiou DA, Beratis NG, Korovessis P, Oikonomopoulos A. Scoliosis in beta thalassemia. Pediatrics. 1991 Aug; 88(2):341-5.
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    52. Syrogiannopoulos GA, Kapatais-Zoumbos K, Decavalas GO, Markantes CG, Katsarou VA, Beratis NG. Ureaplasma urealyticum colonization of full term infants: perinatal acquisition and persistence during early infancy. Pediatr Infect Dis J. 1990 Apr; 9(4):236-40.
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    53. Papanastasiou DA, Spiliopoulou IT, Papageorgiou OG, Beratis NG. Hepatitis B in household contacts of children with beta-thalassemia. Acta Haematol. 1990; 84(4):182-5.
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    54. Gartaganis S, Ismiridis K, Papageorgiou O, Beratis NG, Papanastasiou D. Ocular abnormalities in patients with beta thalassemia. Am J Ophthalmol. 1989 Dec 15; 108(6):699-703.
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    55. Beratis NG, Varvarigou-Frimas A, Beratis S, Sklower SL. Angiokeratoma corporis diffusum in GM1 gangliosidosis, type 1. Clin Genet. 1989 Jul; 36(1):59-64.
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    56. Thanopoulos BD, Rokas S, Frimas CA, Mantagos SP, Beratis NG. Cardiac involvement in postnatal rubella. Acta Paediatr Scand. 1989 Jan; 78(1):141-4.
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    57. Varvarigou-Frima A, Mantagos S, Beratis NG. Transformation of lymphocytes from immunized Rh(D)-negative subjects by Rh(D) isoantigen. Blood. 1988 Sep; 72(3):952-5.
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    58. Thanopoulos BD, Frimas CA, Mantagos SP, Beratis NG. Gaucher disease: treatment of hypersplenism with splenic embolization. Acta Paediatr Scand. 1987 Nov; 76(6):1003-7.
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    59. Beratis NG, Wilbur L. Galactose metabolism in transferase-deficient galactosaemic and normal long-term lymphoid cell lines. J Inherit Metab Dis. 1987; 10(4):347-58.
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    60. Beratis NG, Sklower SL, Wilbur L, Matalon R. Sanfilippo disease in Greece. Clin Genet. 1986 Feb; 29(2):129-32.
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    61. Beratis NG, Wilbur L, Sklower SL. Acid alpha-glucosidase deficiency in cultured fibroblasts with phenotype 2 of acid alpha-glucosidase. Clin Chim Acta. 1983 Oct 31; 134(1-2):11-6.
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    62. Beratis NG, LaBadie GU, Hirschhorn K. Genetic heterogeneity in acid alpha-glucosidase deficiency. Am J Hum Genet. 1983 Jan; 35(1):21-33.
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    63. Beratis NG, LaBadie GU, Hirschhorn K. Acid alpha-glucosidase: kinetic and immunologic properties of enzyme variants in health and disease. Isozymes Curr Top Biol Med Res. 1983; 11:25-36.
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    64. Guarini L, Pascal TA, Gaull GE, Beratis NG. Studies with cystathionase-deficient lymphoid cell lines in culture. Enzyme. 1982; 27(2):69-74.
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    65. Pullarkat RK, Reha H, Beratis NG. Accumulation of ganglioside Gm2 in cerebrospinal fluid of a patient with the variant AB of infantile Gm2 gangliosidosis. Pediatrics. 1981 Jul; 68(1):106-8.
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    66. Guarini L, Sturman JA, Gaull GE, Beratis NG. Methionine utilization in long-term human lymphoid cell lines. J Cell Physiol. 1981 Mar; 106(3):369-74.
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    67. Labadie GU, Hirschhorn K, Katz S, Beratis NG. Increased copper metallothionein in Menkes cultured skin fibroblasts. Pediatr Res. 1981 Mar; 15(3):257-61.
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    68. LaBadie GU, Beratis NG, Price PM, Hirschhorn K. Studies of the copper-binding proteins in Menkes and normal cultured skin fibroblast lysates. J Cell Physiol. 1981 Feb; 106(2):173-8.
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    69. Sturman JA, Beratis NG, Guarini L, Gaull GE. Transsulfuration by human long term lymphoid lines. Normal and cystathionase-deficient cells. J Biol Chem. 1980 May 25; 255(10):4763-5.
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    70. Beratis NG, LaBadie GU, Hirschhorn K. An isozyme of acid alpha-glucosidase with reduced catalytic activity for glycogen. Am J Hum Genet. 1980 Mar; 32(2):137-49.
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    71. Pullarkat RK, Reha H, Beratis NG. Ganglioside accumulation in cultured skin fibroblasts from gangliosidosis patients. Biochem Biophys Res Commun. 1980 Jan 15; 92(1):149-54.
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    72. Beratis NG, Yee M, LaBadie GU, Hirschhorn K. Effect of copper on Menkes' and normal cultured skin fibroblasts. Dev Pharmacol Ther. 1980; 1(5):305-17.
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    73. Beratis NG, Price P, LaBadie GU, Hirschhorn K. Copper metabolism in Menkes disease. Pediatr Res. 1979 Mar; 13(3):206.
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    74. Pascal TA, Beratis NG, Tallan HH, Gaull GE. Cystathionase deficiency: the effect of cofactor on the stability of normal and abnormal enzyme from lymphoid cell lines. Enzyme. 1979; 24(4):265-8.
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    75. Beratis NG, LaBadie GU, Hirschhorn K. Characterization of the molecular defect in infantile and adult acid alpha-glucosidase deficiency fibroblasts. J Clin Invest. 1978 Dec; 62(6):1264-74.
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    76. Hirschhorn R, Beratis NG, Martiniuk F. Adenosine deaminase. Alterations in activity and isozymes during growth of normal and genetically deficient fibroblasts. Exp Cell Res. 1978 Nov; 117(1):103-9.
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    77. Beratis NG, Price P, Labadie G, Hirschhorn K. 64Cu metabolism in Menkes and normal cultured skin fibroblasts. Pediatr Res. 1978 Jun; 12(6):699-702.
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    78. Pascal TA, Gaull GE, Beratis NG, Gillam BM, Tallan HH. Cystathionase deficiency: evidence for genetic heterogeneity in primary cystathioninuria. Pediatr Res. 1978 Feb; 12(2):125-33.
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    79. Beratis NG, Hirschhorn K. Alpha-L-fucosidase in cultured bone marrow fibroblasts from fucosidosis patients. Am J Med Genet. 1978; 2(1):23-9.
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    80. Beratis NG, Turner BM, Labadie G, Hirschhorn K. alpha-L-fucosidase in cultured skin fibroblasts from normal subjects and fucosidosis patients. Pediatr Res. 1977 Jul; 11(7):862-6.
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    81. Turner BM, Beratis NG, Hirschhorn K. Cell-specific differences in membrane beta-glucosidase from normal and Gaucher cells. Biochim Biophys Acta. 1977 Feb 9; 480(2):442-9.
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    82. Kaffe S, Rose JS, Godmilow L, Walker BA, Kerenyi T, Beratis N, Reyes P, Hirschhorn K. Prenatal diagnosis of renal anomalies. Am J Med Genet. 1977; 1(2):241-51.
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    83. Beratis NG, Kaffe S, Aron AM, Hirschhorn K. Alkaline phosphatase activity in cultured skin fibroblasts from fibrodysplasia ossificans progressiva. J Med Genet. 1976 Aug; 13(4):307-9.
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    84. Kayden HJ, Hatam L, Beratis NG. Regulation of 3-hydroxy-3-methylglutaryl coenzyme A reductase activity and the esterification of cholesterol in human long term lymphoid cell lines. Biochemistry. 1976 Feb 10; 15(3):521-8.
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    85. Kousseff BG, Beratis NG, Strauss L, Brill PW, Rosenfield RE, Kaplan B, Hirschhorn K. Fucosidosis type 2. Pediatrics. 1976 Feb; 57(2):205-13.
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    86. Hirschhorn R, Beratis N, Rosen FS. Characterization of residual enzyme activity in fibroblasts from patients with adenosine deaminase deficiency and combined immunodeficiency: evidence for a mutant enzyme. Proc Natl Acad Sci U S A. 1976 Jan; 73(1):213-7.
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    87. Glade PR, Beratis NG. Long-term lymphoid cell lines in the study of human genetics. Prog Med Genet. 1976; 1:1-48.
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    88. Kaffe S, Beratis NG, Hirschhorn K, Greene AE, Coriell LL. Galactosemia. Repository identification Nos. GM-438 to GM-442. Cytogenet Cell Genet. 1976; 17(1):62-4.
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    89. Beratis NG, Hirschhorn K, Friedman S, Greene AE, Coriell LL. Maroteaux-Lamy syndrome: repository identification nos. GM-519,520,935,943, and 1022. Cytogenet Cell Genet. 1976; 17(4):236-8.
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    90. Hirschhorn K, Beratis NG, Turner BM. alpha-L-Fucosidase in normal and deficient individuals. Adv Exp Med Biol. 1976; 68:205-23.
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    91. Pascal TA, Gaull GE, Beratis NG, Gillam BM, Tallan HH, Hirschhorn K. Vitamin B6-responsive and -unresponsive cystathioninuria: two variant molecular forms. Science. 1975 Dec 19; 190(4220):1209-11.
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    92. Beratis NG, Turner BM, Hirschhorn K. Fucosidosis: detection of the carrier state in peripheral blood leukocytes. J Pediatr. 1975 Dec; 87(6 Pt 2):1193-8.
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    93. Kim HJ, Beratis NG, Brill P, Raab E, Hirschhorn K, Matalon R. Kniest syndrome with dominant inheritance and mucopolysacchariduria. Am J Hum Genet. 1975 Nov; 27(6):755-64.
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    94. Brill PW, Kim HJ, Beratis NG, Hirschhorn K. Skeletal abnormalities in the Kniest syndrome with mucopolysacchariduria. Am J Roentgenol Radium Ther Nucl Med. 1975 Nov; 125(3):731-8.
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    95. Turner BM, Beratis NG, Turner VS, Hirschhorn K. Silent allele as genetic basis of fucosidosis. Nature. 1975 Oct 2; 257(5525):391-2.
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    96. Beratis NG, Hirschhorn K. Letter: Serum arylsulfatase A assay. J Pediatr. 1975 Oct; 87(4):669-70.
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    97. Turner BM, Turner VS, Beratis NG, Hirschhorn K. Polymorphism of human alpha fucosidase. Am J Hum Genet. 1975 Sep; 27(5):651-61.
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    98. Beratis NG, Danesino C, Hirschhorn K. Detection of homozygotes and heterozygotes for metachromatic leukodystrophy in lymphoid cell lines and peripheral leukocytes. Ann Hum Genet. 1975 May; 38(4):485-93.
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    99. Beratis NG, Turner BM, Weiss R, Hirschhorn K. Arylsulfatase B deficiency in Maroteaux-Lamy syndrome: Cellular studies and carrier identification. Pediatr Res. 1975 May; 9(5):475-80.
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    100. Brill PW, Beratis NG, Kousseff BG, Hirschhorn K. Roentgenographic findings in fucosidosis type 2. Am J Roentgenol Radium Ther Nucl Med. 1975 May; 124(1):75-82.
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    101. Hirschhorn R, Beratis N, Rosen FS, Parkman R, Stern R, Polmar S. Adenosine-deaminase deficiency in a child diagnosed prenatally. Lancet. 1975 Jan 11; 1(7898):73-5.
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    102. Beratis NG, Kousseff BG, Hirschhorn K, Greene AE, Coriell LL. Fucosidosis type 2. Repository identification Nos. GM-289 to GM-292. Cytogenet Cell Genet. 1975; 15(3):195-7.
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    103. Turner BM, Beratis NG, Turner VS, Hirschhorn K. Isozymes of human alpha-L-fucosidase detectable by starch gel electrophoresis. Clin Chim Acta. 1974 Nov 20; 57(1):29-35.
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    104. Fleisher LD, Longhi RC, Tallan HH, Beratis NG, Hirschhorn K, Gaull GE. Homocystinuria: investigations of cystathionine synthase in cultured fetal cells and the prenatal determination of genetic status. J Pediatr. 1974 Nov; 85(5):677-80.
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    105. Beratis NG, Fleisher LD, Danesino C, Hirschhorn K. Arylsulfatase A deficiency in bone marrow fibroblasts of two different forms of metachromatic leukodystrophy. J Lab Clin Med. 1974 Jul; 84(1):49-53.
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    106. Kousseff BG, Beratis NG, Danesino C, Hirschhorn K. Letter: Genetic heterogeneity in fucosidosis. Lancet. 1973 Dec 15; 2(7842):1387-8.
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    107. Beratis NG, Conover JH, Conod EJ, Bonforte RJ, Hirschhorn K. Studies on ciliary dyskinesia factor in cystic fibrosis. 3. Skin fibroblasts and cultured amniotic fluid cells. Pediatr Res. 1973 Dec; 7(12):958-64.
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    108. Hirschhorn R, Beratis NG. Letter: Severe combined immunodeficiency and adenosine-deaminase deficiency. Lancet. 1973 Nov 24; 2(7839):1217-8.
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    109. Fleisher LD, Tallan HH, Beratis NG, Hirschhorn K, Gaull GE. Cystathionine synthase deficiency: heterozygote detection using cultured skin fibroblasts. Biochem Biophys Res Commun. 1973 Nov 1; 55(1):38-44.
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    110. Beratis NG, Aaron AM, Hirschhorn K. Metachromatic leukodystrophy: detection in serum. J Pediatr. 1973 Nov; 83(5):824-7.
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    111. Conover JH, Beratis NG, Conod EJ, Ainbender E, Hirschhorn K. Studies on ciliary dyskinesia factor in cystic fibrosis. II. Short term leukocyte cultures and long term lymphoid lines. Pediatr Res. 1973 Apr; 7(4):224-8.
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    112. Beratis NG, Hsu LY, Kutinsky E, Hirschhorn K. Stability of trisomic (47, 18+) cells in long-term mosaic skin fibroblast culture. Can J Genet Cytol. 1972 Dec; 15(4):869-70.
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    113. Beratis NG, Kardon NB, Hsu LY, Grossman D, Hirschhorn K. Parental mosaicism in trisomy 18. Pediatrics. 1972 Dec; 50(6):908-11.
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    114. Fleisher LD, Beratis NG, Hirschhorn K, Gaull GE. Detection of cystathionine synthase in long-term lymphoid-cell lines. Lancet. 1972 Sep 2; 2(7775):482.
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    115. Beratis NG, Hirschhorn K. Properties of placental alkaline phosphatase. 3. Thermostability and urea inhibition of isolated components of the three common phenotypes. Biochem Genet. 1972 Feb; 6(1):1-8.
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    116. Chernay PR, Kardon NB, Hsu LY, Shapiro LR, Beratis NG, Kerr J, Hirschhorn K. A differential staining technique for chromosome identification and its comparison with fluorescence technique. Clin Genet. 1972; 3(5):347-56.
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    117. Kardon NB, Beratis NG, Hsu LY, Moloshok RE, Hirschhorn K. 47,XXY-48,XXXY-49,XXXXY mosaicism in a 4-year-old child. Am J Dis Child. 1971 Aug; 122(2):160-2.
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    118. Beratis NG, Seegers W, Hirschhorn K. Properties of placental alkaline phosphatase. II. Interactions of fast- and slow-migrating components. Biochem Genet. 1971 Aug; 5(4):367-77.
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    119. Matsaniotis N, Karpouzas J, Katsaras H, Beratis N. Foreign body in the mediastinum. Int Surg. 1971 Apr; 55(4):293-6.
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    120. Beratis NG, Hsu LY, Hirschhorn K. Familial de Lange syndrome. Report of three cases in a sibship. Clin Genet. 1971; 2(3):170-6.
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    121. Beratis NG, Seegers W, Hirschhorn K. Properties of placental alkaline phosphatase. I. Molecular size and eletrical charge of the various electrophoretic components of the six common phenotypes. Biochem Genet. 1970 Dec; 4(6):689-705.
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    122. Kardon N, Hsu LY, Beratis N, Hirschhorn K. Trisomy 18. Lancet. 1970 Oct 10; 2(7676):782.
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    123. Matsaniotis N, Beratis N, Economou-Mavrou C. Urinary vanillyl-mandelic acid (VMA) excretion by chronically anaemic children. Arch Dis Child. 1968 Jun; 43(229):372-6.
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