Ron Newfield

Title(s)Clinical Professor, Pediatrics
SchoolVc-health Sciences-schools
Address9500 Gilman Drive #
La Jolla CA 92093
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    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Real-World Effectiveness and Safety of Evinacumab in Children and Adults With Homozygous Familial Hypercholesterolemia: A Multisite US Perspective. Arterioscler Thromb Vasc Biol. 2025 May 29. Wilkinson MJ, Bijlani P, Davidson MH, Duell PB, Horan M, Malloy MJ, Newfield RS, Pradeep P, Shah PK, Stock EO, Warden BA, Ito MK. PMID: 40438928.
      View in: PubMed   Mentions:    Fields:    
    2. Experience with gender affirming hormones and puberty blockers (gonadotropin releasing hormone agonist): a qualitative analysis of sexual function. J Sex Med. 2025 May 10; 22(5):945-950. Finegan JL, Marinkovic M, Okamuro K, Newfield RS, Anger JT. PMID: 40192463.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    3. Crinecerfont, a CRF1 Receptor Antagonist, Lowers Adrenal Androgens in Adolescents With Congenital Adrenal Hyperplasia. J Clin Endocrinol Metab. 2023 10 18; 108(11):2871-2878. Newfield RS, Sarafoglou K, Fechner PY, Nokoff NJ, Auchus RJ, Vogiatzi MG, Jeha GS, Giri N, Roberts E, Sturgeon J, Chan JL, Farber RH. PMID: 37216921; PMCID: PMC10583973.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    4. Extended Use of Histrelin Implant in Pediatric Patients. Transgend Health. 2023 Jun; 8(3):264-272. Pine-Twaddell E, Newfield RS, Marinkovic M. PMID: 37342480; PMCID: PMC10278025.
      View in: PubMed   Mentions:
    5. Short-term pediatric thyroidectomy outcome: Analysis of the Pediatric Health Information System (PHIS) database. Int J Pediatr Otorhinolaryngol. 2022 Dec; 163:111340. Jiang W, Hall M, Newfield R, Berry JG. PMID: 36274324.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    6. Mutational analysis using next generation sequencing in pediatric thyroid cancer reveals BRAF and fusion oncogenes are common. Int J Pediatr Otorhinolaryngol. 2022 Jun; 157:111121. Newfield RS, Jiang W, Sugganth DX, Hantash FM, Lee E, Newbury RO. PMID: 35397361.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    7. A randomized clinical trial of the efficacy and safety of sitagliptin as initial oral therapy in youth with type 2 diabetes. Pediatr Diabetes. 2022 03; 23(2):173-182. Shankar RR, Zeitler P, Deeb A, Jalaludin MY, Garcia R, Newfield RS, Samoilova Y, Rosario CA, Shehadeh N, Saha CK, Zhang Y, Zilli M, Scherer LW, Lam RLH, Golm GT, Engel SS, Kaufman KD. PMID: 34779087.
      View in: PubMed   Mentions: 12     Fields:    Translation:Humans
    8. Efficacy and safety of the addition of sitagliptin to treatment of youth with type 2 diabetes and inadequate glycemic control on metformin without or with insulin. Pediatr Diabetes. 2022 03; 23(2):183-193. Jalaludin MY, Deeb A, Zeitler P, Garcia R, Newfield RS, Samoilova Y, Rosario CA, Shehadeh N, Saha CK, Zhang Y, Zilli M, Scherer LW, Lam RLH, Golm GT, Engel SS, Kaufman KD, Shankar RR. PMID: 34779103.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    9. Subcutaneous Testosterone Is Effective and Safe as Gender-Affirming Hormone Therapy in Transmasculine and Gender-Diverse Adolescents and Young Adults: A Single Center's 8-Year Experience. Transgend Health. 2021 Dec; 6(6):343-352. Laurenzano SE, Newfield RS, Lee E, Marinkovic M. PMID: 34988290; PMCID: PMC8664110.
      View in: PubMed   Mentions: 2  
    10. Tildacerfont in Adults With Classic Congenital Adrenal Hyperplasia: Results from Two Phase 2 Studies. J Clin Endocrinol Metab. 2021 10 21; 106(11):e4666-e4679. Sarafoglou K, Barnes CN, Huang M, Imel EA, Madu IJ, Merke DP, Moriarty D, Nakhle S, Newfield RS, Vogiatzi MG, Auchus RJ. PMID: 34146101; PMCID: PMC8530725.
      View in: PubMed   Mentions: 18     Fields:    Translation:HumansCTClinical Trials
    11. Improving vitamin D testing and supplementation in children with newly diagnosed cancer: A quality improvement initiative at Rady Children's Hospital San Diego. Pediatr Blood Cancer. 2021 11; 68(11):e29217. Shliakhtsitsava K, Fisher ES, Trovillion EM, Bush K, Kuo DJ, Newfield RS, Thornburg CD, Roberts W, Aristizabal P. PMID: 34286891; PMCID: PMC8463415.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    12. Diagnostic utility of fine needle aspiration cytology in pediatric thyroid nodules based on Bethesda Classification. J Pediatr Endocrinol Metab. 2021 Apr 27; 34(4):449-455. Jiang W, Phillips SA, Newbury RO, Naheedy JH, Newfield RS. PMID: 33629571.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    13. Sociodemographic and clinical characteristics associated with vitamin D status in newly diagnosed pediatric cancer patients. Pediatr Hematol Oncol. 2020 May; 37(4):314-325. Aristizabal P, Sherer M, Perdomo BP, Castelao E, Thornburg CD, Proudfoot J, Jacobs E, Newfield RS, Zage P, Roberts W, Martinez ME. PMID: 32153233; PMCID: PMC7207243.
      View in: PubMed   Mentions: 8     Fields:    Translation:HumansCTClinical Trials
    14. Undescended retropharyngeal parathyroid adenoma with adjacent thymic tissue in a 13-year-old boy with primary hyperparathyroidism. Oxf Med Case Reports. 2019 Dec; 2019(12):519-523. Kordahi AM, Newfield RS, Bickler SW, Mo JQ, Khanna PC, Bykowski J, Bouvet M. PMID: 31908827; PMCID: PMC6937453.
      View in: PubMed   Mentions: 3  
    15. Diagnosis and treatment of a boy with IPEX syndrome presenting with diabetes in early infancy. Clin Case Rep. 2019 Nov; 7(11):2123-2127. Kadakia S, Farnaes L, Dimmock D, Chowdhury S, Ding Y, Anderson EJ, Kingsmore S, Newfield RS. PMID: 31788263; PMCID: PMC6878034.
      View in: PubMed   Mentions: 3  
    16. Neonatal diabetes mellitus due to a novel variant in the INS gene. Cold Spring Harb Mol Case Stud. 2019 08; 5(4). Laurenzano SE, McFall C, Nguyen L, Savla D, Coufal NG, Wright MS, Tokita M, Dimmock D, Kingsmore SF, Newfield RS. PMID: 31196892; PMCID: PMC6672029.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    17. The utility of intact parathyroid hormone level in managing hypocalcemia after thyroidectomy in children. Int J Pediatr Otorhinolaryngol. 2019 Oct; 125:153-158. Jiang W, Lee E, Newfield RS. PMID: 31323353.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    18. Non-alcoholic fatty liver disease in pediatric type 2 diabetes: Metabolic and histologic characteristics in 38 subjects. Pediatr Diabetes. 2019 02; 20(1):41-47. Newfield RS, Graves CL, Newbury RO, Schwimmer JB, Proudfoot JA, Say DS, Feldstein AE. PMID: 30467936.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    19. Chromosomal rearrangements in the 11p15 imprinted region: 17 new 11p15.5 duplications with associated phenotypes and putative functional consequences. J Med Genet. 2018 03; 55(3):205-213. Heide S, Chantot-Bastaraud S, Keren B, Harbison MD, Azzi S, Rossignol S, Michot C, Lackmy-Port Lys M, Demeer B, Heinrichs C, Newfield RS, Sarda P, Van Maldergem L, Trifard V, Giabicani E, Siffroi JP, Le Bouc Y, Netchine I, Brioude F. PMID: 29223973.
      View in: PubMed   Mentions: 22     Fields:    Translation:HumansCells
    20. Bone maturation along the spectrum from normal weight to obesity: a complex interplay of sex, growth factors and weight gain. J Pediatr Endocrinol Metab. 2016 Mar; 29(3):311-8. Klein KO, Newfield RS, Hassink SG. PMID: 26565541.
      View in: PubMed   Mentions: 16     Fields:    Translation:Humans
    21. Pediatric thyroid surgery and management of thyroid nodules - an institutional experience over a 10-year period. Int J Pediatr Endocrinol. 2016; 2016:1. Jiang W, Newbury RO, Newfield RS. PMID: 26770219; PMCID: PMC4712522.
      View in: PubMed   Mentions: 4  
    22. Mutational Analysis in Pediatric Thyroid Cancer and Correlations with Age, Ethnicity, and Clinical Presentation. Thyroid. 2016 Feb; 26(2):227-34. Nikita ME, Jiang W, Cheng SM, Hantash FM, McPhaul MJ, Newbury RO, Phillips SA, Reitz RE, Waldman FM, Newfield RS. PMID: 26649796; PMCID: PMC4985048.
      View in: PubMed   Mentions: 26     Fields:    Translation:Humans
    23. Low vitamin D level in pediatric patients with new onset type 1 diabetes is common, especially if in ketoacidosis. Pediatr Diabetes. 2016 12; 17(8):592-598. Al-Zubeidi H, Leon-Chi L, Newfield RS. PMID: 26694737.
      View in: PubMed   Mentions: 17     Fields:    Translation:Humans
    24. Topical sulfonylurea as a novel therapy for hypertrichosis secondary to diazoxide, and potentially for other conditions with excess hair growth. Med Hypotheses. 2015 Dec; 85(6):969-71. Newfield RS. PMID: 26392140.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    25. A 4-Year, Open-Label, Multicenter, Randomized Trial of Genotropin® Growth Hormone in Patients with Idiopathic Short Stature: Analysis of 4-Year Data Comparing Efficacy, Efficiency, and Safety between an Individualized, Target-Driven Regimen and Standard Dosing. Horm Res Paediatr. 2015; 84(2):79-87. Counts DR, Silverman LA, Rajicic N, Geffner ME, Newfield RS, Thornton P, Carakushansky M, Escobar O, Rapaport R, Levitsky L, Rotenstein D, Hey-Hadavi J, Wajnrajch MP. PMID: 25966824.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    26. Evaluation of the American-English Quality of Life in Short Stature Youth (QoLISSY) questionnaire in the United States. Health Qual Life Outcomes. 2015 Apr 02; 13:43. Bullinger M, Sommer R, Pleil A, Mauras N, Ross J, Newfield R, Silverman L, Rohenkohl A, Fox J, Quitmann J. PMID: 25889818; PMCID: PMC4424504.
      View in: PubMed   Mentions: 12     Fields:    Translation:Humans
    27. Successful use of long acting octreotide in two cases with Beckwith-Wiedemann syndrome and severe hypoglycemia. Int J Pediatr Endocrinol. 2014; 2014(1):18. Al-Zubeidi H, Gottschalk ME, Newfield RS. PMID: 25243012; PMCID: PMC4168987.
      View in: PubMed   Mentions: 3  
    28. Lipoprotein particle concentrations in children and adults following Kawasaki disease. J Pediatr. 2014 Oct; 165(4):727-31. Lin J, Jain S, Sun X, Liu V, Sato YZ, Jimenez-Fernandez S, Newfield RS, Pourfarzib R, Tremoulet AH, Gordon JB, Daniels LB, Burns JC. PMID: 25039043; PMCID: PMC4207833.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    29. Codon Arg15 mutations of the AP2S1 gene: common occurrence in familial hypocalciuric hypercalcemia cases negative for calcium-sensing receptor (CASR) mutations. J Clin Endocrinol Metab. 2014 Jul; 99(7):E1311-5. Hendy GN, Canaff L, Newfield RS, Tripto-Shkolnik L, Wong BY, Lee BS, Cole DE. PMID: 24731014.
      View in: PubMed   Mentions: 12     Fields:    Translation:HumansCells
    30. Policy challenges in the fight against childhood obesity: low adherence in San Diego area schools to the California Education Code regulating physical education. J Obes. 2013; 2013:483017. Consiglieri G, Leon-Chi L, Newfield RS. PMID: 23762537; PMCID: PMC3666203.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    31. Self-limiting hematuria following growth hormone provocative testing with arginine hydrochloride. J Pediatr Endocrinol Metab. 2012; 25(7-8):791-3. Marinkovic M, Newfield RS. PMID: 23155712.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    32. Ease of use and preference for a new disposable self-injection pen compared with a reusable pen for administering recombinant human growth hormone: A multicenter, 2-month, single-arm, open-label clinical trial in patient-caregiver dyads. Clin Ther. 2010 Nov; 32(12):2036-47. Hey-Hadavi J, Pleil A, Deeb LC, Fuqua JS, Silverman LA, Reiner B, Newfield R, Rajicic N, Wajnrajch MP, Cara JF. PMID: 21118739.
      View in: PubMed   Mentions: 11     Fields:    Translation:HumansPHPublic HealthCTClinical Trials
    33. ACTH receptor blockade: a novel approach to treat congenital adrenal hyperplasia, or Cushing's disease. Med Hypotheses. 2010 Apr; 74(4):705-6. Newfield RS. PMID: 19931309.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    34. Rapid weight gain in children soon after diagnosis of type 1 diabetes: is there room for concern? Pediatr Diabetes. 2009 Aug; 10(5):310-5. Newfield RS, Cohen D, Capparelli EV, Shragg P. PMID: 19067888.
      View in: PubMed   Mentions: 15     Fields:    Translation:Humans
    35. Autosomal dominant hypoparathyroidism with severe hypomagnesemia and hypocalcemia, successfully treated with recombinant PTH and continuous subcutaneous magnesium infusion. J Pediatr Endocrinol Metab. 2008 Apr; 21(4):385-91. Sanda S, Schlingmann KP, Newfield RS. PMID: 18556971.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    36. Dyslipidemia in children with type 2 diabetes vs. obesity. Pediatr Diabetes. 2008 Apr; 9(2):115-21. Newfield RS, Dewan AK, Jain S. PMID: 18221437.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    37. A child with pericardial effusion and cardiac tamponade due to previously unrecognized hypothyroidism. J Natl Med Assoc. 2007 Dec; 99(12):1411-3. Sanda S, Newfield RS. PMID: 18229779; PMCID: PMC2575930.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    38. Autoimmune thyroiditis and acquired hypothyroidism in an infant with severe combined immunodeficiency due to adenosine deaminase deficiency. Thyroid. 2007 Jun; 17(6):585-7. Nagpala P, Newfield R, Bastian J, Gottschalk M. PMID: 17614781.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    39. Recombinant PTH for initial management of neonatal hypocalcemia. N Engl J Med. 2007 Apr 19; 356(16):1687-8. Newfield RS. PMID: 17442918.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    40. Increased luteinizing hormone pulse frequency in obese oligomenorrheic girls with no evidence of hyperandrogenism. Fertil Steril. 2006 Apr; 85(4):1049-56. Yoo RY, Dewan A, Basu R, Newfield R, Gottschalk M, Chang RJ. PMID: 16580394.
      View in: PubMed   Mentions: 22     Fields:    Translation:Humans
    41. Greater prevalence of iron deficiency in overweight and obese children and adolescents. Int J Obes Relat Metab Disord. 2003 Mar; 27(3):416-8. Pinhas-Hamiel O, Newfield RS, Koren I, Agmon A, Lilos P, Phillip M. PMID: 12629572.
      View in: PubMed   Mentions: 93     Fields:    Translation:Humans
    42. Tyrosinemia I, a model for human diseases mediated by 2-oxoacid-utilizing dioxygenases: hepatotoxin suppression by NTBC does not normalize hepatic collagen metabolism. J Pediatr Gastroenterol Nutr. 2002 Jul; 35(1):73-8. Hanauske-Abel HM, Popowicz A, Remotti H, Newfield RS, Levy J. PMID: 12142814.
      View in: PubMed   Mentions: 4     Fields:    Translation:HumansCells
    43. Height distribution in children with Tourette syndrome. J Child Neurol. 2002 Mar; 17(3):200-4. Zelnik N, Newfield RS, Silman-Stolar Z, Goikhman I. PMID: 12026236.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    44. Long-term mifepristone (RU486) therapy resulting in massive benign endometrial hyperplasia. Clin Endocrinol (Oxf). 2001 Mar; 54(3):399-404. Newfield RS, Spitz IM, Isacson C, New MI. PMID: 11298094.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    45. Graves' disease in childhood. J Pediatr Endocrinol Metab. 2001 Mar; 14(3):229-43. Kraiem Z, Newfield RS. PMID: 11308041.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    46. Resistance to multiple steroids in two sisters. J Steroid Biochem Mol Biol. 2001 Jan-Mar; 76(1-5):161-6. New MI, Nimkarn S, Brandon DD, Cunningham-Rundles S, Wilson RC, Newfield RS, Vandermeulen J, Barron N, Russo C, Loriaux DL, O'Malley B. PMID: 11384874.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    47. Normocortisolemic Cushing's syndrome initially presenting with increased glucocorticoid receptor numbers. J Clin Endocrinol Metab. 2000 Jan; 85(1):14-21. Newfield RS, Kalaitzoglou G, Licholai T, Chilton D, Ashraf J, Thompson EB, New MI. PMID: 10634357.
      View in: PubMed   Mentions: 11     Fields:    Translation:Humans
    48. Resistance to several steroids in two sisters. J Clin Endocrinol Metab. 1999 Dec; 84(12):4454-64. New MI, Nimkarn S, Brandon DD, Cunningham-Rundles S, Wilson RC, Newfield RS, Vandermeulen J, Barron N, Russo C, Loriaux DL, O'Malley B. PMID: 10599702.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    49. Prenatal diagnosis and treatment of 11beta-hydroxylase deficiency congenital adrenal hyperplasia resulting in normal female genitalia. J Clin Endocrinol Metab. 1999 Sep; 84(9):3129-34. Cerame BI, Newfield RS, Pascoe L, Curnow KM, Nimkarn S, Roe TF, New MI, Wilson RC. PMID: 10487675.
      View in: PubMed   Mentions: 11     Fields:    Translation:Humans
    50. Examination of genotype and phenotype relationships in 14 patients with apparent mineralocorticoid excess. J Clin Endocrinol Metab. 1998 Jul; 83(7):2244-54. Dave-Sharma S, Wilson RC, Harbison MD, Newfield R, Azar MR, Krozowski ZS, Funder JW, Shackleton CH, Bradlow HL, Wei JQ, Hertecant J, Moran A, Neiberger RE, Balfe JW, Fattah A, Daneman D, Akkurt HI, De Santis C, New MI. PMID: 9661590.
      View in: PubMed   Mentions: 30     Fields:    Translation:Humans
    51. Epidemiology and genetics of diabetic complications. Diabetologia. 1997 Oct; 40 Suppl 3:B62-4. Newfield RS, Polak M, Marchase R, Czernichow P. PMID: 9345648.
      View in: PubMed   Mentions: 2     Fields:    Translation:HumansPHPublic Health
    52. Pathophysiology of diabetic complications. Diabetologia. 1997 Oct; 40 Suppl 3:B65-7. Polak M, Newfield RS, Fioretto P, Czernichow P, Marchase R. PMID: 9345649.
      View in: PubMed   Mentions: 1     Fields:    Translation:HumansAnimals
    53. 21-hydroxylase deficiency. Ann N Y Acad Sci. 1997 Jun 17; 816:219-29. Newfield RS, New MI. PMID: 9238271.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    54. Congenital adrenal hyperplasia. Curr Ther Endocrinol Metab. 1997; 6:179-87. New MI, Newfield RS. PMID: 9174733.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    55. Eikenella corrodens infections. Case report in two adolescent females with IDDM. Diabetes Care. 1996 Sep; 19(9):1011-3. Newfield RS, Vargas I, Huma Z. PMID: 8875101.
      View in: PubMed   Mentions: 2     Fields:    Translation:HumansCells
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