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Research Publications

Peer-reviewed papers in professional medical journals

Basic research

Fuhrman B, Buch S, Vaya J, Belinky PA, Coleman R, Hayek T, Aviram M. Licorice extracts and its major polyphenol glabridin protect low-density lipoprotein against lipid peroxidation: in vitro and ex vivo studies in humans and in atherosclerotic apoprotein E-deficient mice. Am J Clin Nutr 1997; 66:267-275.

Barak S, Machtei EE, Oettinger-Barak O, Peled M, Ardekian L, Laufer D, Baruch Y: Alveolar Bone Height in Patients After Liver Transplantation. Transplant Proc 2000; 32:718-720.

Oettinger-Barak O, Barak S, Machtei EE, Ardekian L, Baruch Y, Peled M.. Periodontal changes in liver cirrhosis and post-transplantation patients. I: clinical findings. J Periodontol 2001 Sep;72(9):1236-1240.

Oettinger-Barak O, Machtei EE, Barak S, Baruch Y, Ardekian L, Peled M. Periodontal changes in liver cirrhosis and post-transplantation patients. II: radiographic findings. J Periodontol 2002 Mar;73(3):313-316.

Barak S, Oettinger M, Perri A, Cohen HI, Barenboym R, Ophir E. Frozen Section Examination of Endometrial Curettings  in the Diagnosis of Ectopic Pregnancy – Validity and Suggested Management. Acta Obstet Gynecol Scand 2005;84:43-47 .

Oettinger-Barak O, Barak S, Ohel G, Oettinger M, Kreutzer H, Peled M, Machtei EE. Severe pregnancy complication (preeclampsia) is associated with greater periodontal destruction J Periodontol 2005 Jan;76(1):134-7.

Oettinger M, Barak S, Oettinger-Barak O, Ophir E. Subcutaneous implantation of pure crystalline estradiol pellets for conception control. Gynecol Obstet Invest 2005; 59:119-25.

Ohel G, Gonen R , Vaida S , Barak S , Gaitini L. Early versus late initiation of epidural analgesia in labor: does it increase the   risk of cesarean section? A randomized trial . Am J Obstet Gynecol 2006 Mar;194(3):600

Barak S, Oettinger-Barak O, Sprecher H, Ohel G, Machtei EE Evidence of Periopathogenic Microorganisms in Placentas of Women With Preeclampsia. J Periodontol 2007 Apr;78(4):670-676.

Gonen R, Barak S, Nissenblat V, Ohel G. The outcome and cumulative morbidity associated with the second and third post cesarean delivery. Accepted for publication  Am J Perinatol 2007 Sep;24(8):483-6

Oettinger-Barak O, Segal E, Barak S, Baruch Y, MachteiEE, Ish-Shalom S.  Alveolar Bone Loss in Liver Transplant Patients: Relationship to Prolonged Steroid Treatment and PTH Levels. J Clin Periodontol 2007 Dec;34(12):1039-45

Clinical Descriptive Research

Gonen R, Nisenblat V, Barak S, Tamir A, Ohel G. Results of a well-defined protocol for a trial of labor after prior cesarean delivery. Obstet Gynecol 2006 Feb;107(2):240-5

Nisenblat V, Alon E, Barak S, Gonen R, Bader D, Ohel G. Fetal heart rate patterns and neurodevelopmental outcome in very low birth weight infants. Acta Obstet Gynecol Scand 2006;85(7):792-6.

Nisenblat V, Barak S, Griness OB, Degani S, Ohel G, Gonen R. Maternal complications associated with multiple cesarean deliveries. Obstet Gynecol 2006 Jul;108(1):21-6.

Case Reports

Oettinger-Barak O, Machtei EE, Peled M, Barak S, Abu L-Naaj I, Laufer D: Cyclosporine A-induced gingival hyperplasia in pemphigus vulgaris patient: literature review and report of a case. J Periodontol 2000;247-253.

Barak S, Leibovitz Z, Kugelman A, Degani S, Shapiro I, Ohel G Extensive hemorrhagic chorion-amnion separation after second-trimester genetic amniocentesis. J Ultrasound Med 2003 Nov;22(11):1283-8.

Nisenblat V,  Leibovittz Z,  Tal J, Barak S, Shapiro I, Degani S, Ohel G. Primary ovarian ectopic pregnancy, misdiagnosed as first trimester missed abortion. J Ultrasound Med 2005 Apr;24(4):539.

Leibovitz Z, Barak S, Degani S, Shapiro I, Ohel G. Fetal Escape From the Amniotic Sac: Follow-up From First Trimester to Delivery. J Ultrasound Med 2005 Dec;24(12):1745-51.

Oettinger-Barak O, Machtei EE, Ben-Izhak O, Barak S, Peled M. Pregnancy tumor occurring twice in the same individual: Report of a case and hormone receptors study. Quintessence International 2005; 37(3):213-18

Review Papers

Barak S, Oettinger-Barak O, Oettinger M, Machtei EE, Peled M, Ohel G. Common oral manifestations during pregnancy – a review. Obstet Gynecol Surv 2003 Sep;58(9):624-8.

Book Chapters

Oettinger-Barak O, Barak S, Baruch Y and Machtei EE.  Periodontal status of liver cirrhosis and post transplantation patients. In “Liver Cirrhosis: New Research” T.M. Chen Editor. Nova Science Publishers, Inc. Scheduled for publication, Feb 2005.

Liu DY, Bourne H, Garrett C, Clarke GN, Barak S, Baker HWG. “Practical Manual of In Vitro Fertilization: Advanced Methods and Novel Devices”
Drs. Ashok Agarwal, Alex Varghese, and Zsolt Peter Nagy, the editors
Chapter: “Sperm Assessment: Novel Approaches and Their Indicative Value”, 2010

Abstracts

Oettinger-Barak O, Barak S, Ardekian L, Peled M, Baruch Y, Laufer D, Machtei EE. Gingival and radiographic changes in liver cirrhosis and post liver transplantation patients. J Clin Periodontol 2000; 27(sp. issue):93.

Oettinger-Barak O, Barak S, Ardekian L, Baruch Y, Laufer D, Machtei EE. Gingival and radiographic changes in Tacrolimus versus Cyclosporine-A treated patients. J Dent Res 2000.

Oettinger-Barak O, Oettinger M, Barak S, Peled M, Kreutzer H, Ohel G, Machtei EE. Periodontal disease and preeclampsia in pregnancy. J Clin Periodontol 2003; 30(4 Supp):9.

Barak S, Oettinger-Barak O, Ish-Shalom S, Segal L, Baruch Y, Peled M, Machtei EE. Bone Turnover Markers Post Liver Transplantation. J Clin Periodontol 2003; 30(4 Supp):32.

Oettinger-Barak O, Barak S, Baruch Y, Machtei EE. Periodontal clinical, radiographic and immunological characteristics post liver transplantation. J Dent Res 2006.

Oettinger-Barak O, Barak S, Sprecher H, Ohel G, Machtei EE. Periodontal pathogens in human placentas of women with severe preeclampsia. J Clin Periodontol 2006

Oettinger-Barak O , Segal E,  Machtei EE, Barak S, Baruch Y , Ish-Shalom S. Bone Loss in Liver Transplantees: Relationship with Steroids and PTH. J Dent Res 2007

Posters

Barak S, Machtei EE, Oettinger-Barak O, Peled M, Laufer D, Baruch Y: Liver disease and liver transplantation: effect on alveolar bone height. Israel Transplant Assoc. Tel-Aviv, June 1999.

Oettinger-Barak O, Barak S, Ardekian L, Peled M, Baruch Y, Laufer D, Machtei EE. Gingival and radiographic changes in liver cirrhosis and post liver transplantation patients. Europerio 3, Geneva, June 2000.

Barak S, Oettinger-Barak O, Machtei EE, Baruch Y, Peled M. Periodontal changes in liver cirrhosis and post liver transplantation patients. Second Research Meeting, Rambam Medical Center, Haifa, October 2001.

Barak S, Oettinger-Barak O, Ish-Shalom S, Segal L, Baruch Y, Peled M, Machtei EE. Bone Turnover Markers Post Liver Transplantation. Europerio 4, Berlin, June 2003.

Barak S, Gonen R, Ohel G. Outcome and morbidity in the first and second deliveries following CS – comparison between a trial of labor and elective CS. SMFM 24th Annual Meeting, New Orleans, 2004.

Nisenblat V, Barak S, Barnett O Griness, Degani S,  Ohel G, Gonen R. Maternal morbidity associated with multiple cesarean deliveries.  The 26th SMFM annual meeting, on 29.01.2006- 04.02.2006, Miami, Florida.

Nisenblat V, Barak S, Sofer-Gerson N, Gonen R, Bader D, Ohel G .Fetal heart rate patterns and neuro-developmental outcome in VLBW infants. The 26th SMFM annual meeting, on 29.01.2006- 04.02.2006, Miami, Florida.

Oettinger-Barak O, Segal E, Machtei EE, Barak S, Baruch Y, Ish-Shalom S. Bone Loss in Liver Transplantees: Relationship with Steroids and PTH. Rambam Health Care Campus, Dec 2007.

Barak S, Bourne H, Elzeiny H, Fox G, Baker HWG. Are ICSI outcomes better for ejaculated sperm compared with testicular sperm? Fertility Society of Australia Conference 2009, Perth, WA

Ponnalpalam M, Barak S,  Baker HWG. Major Contributors to Pregnancy Loss – Analysis of 11,553 ART Clinical Pregnancies. Fertility Society of Australia Conference 2010, Adelaide, SA

Barak S, Ponnalpalam M, Baker HWG. Clinical Pregnancy Loss: Does Male Infertility Have Any Contribution? An Analysis Of 11553 Art Pregnancies.

Fertility Society of Australia Conference 2010, Adelaide, SA

Oral presentations

Barak S, Oettinger-Barak O, Ardekian L, Baruch Y, Laufer D, Machtei EE. Gingival and radiographic changes in Tacrolimus versus Cyclosporine-A treated patients. IADR, Nathania, June 2000.

Oettinger-Barak O, Barak S, Oettinger M, Ohel G, Kreutzer H, Peled M, Machtei EE. A Possible Association Between Periodontal Disease In Pregnancy and Preeclampsia. Europerio 4, Berlin, June 2003.

Barak S, Ron Gonen, Gonen Ohel. A trial of labor versus an elective repeat CS: Longitudinal study of outcome and morbidity in the second and third delivery after a previous CS. ISMFM annual meeting, Tel-Aviv, Oct 2003

Nisenblat V, Barak S, Tamir A, Ohel G, Gonen R. Maternal and perinatal outcome associated with a cautious protocol for a trial of labor after prior cesarean delivery.The annual meeting of Israeli Society of Maternal Fetal Medicine, Oct, 2005.

Oettinger-Barak O, Barak S, Sprecher H, Ohel G, Machtei EE. Periodontal Pathogens in Human Placentas of Women With Severe Preeclampsia. Europerio 5, Madrid 2006

Oettinger-Barak O , Segal E,  Machtei EE, Barak S, Baruch Y , Ish-Shalom S. Bone Loss in Liver Transplantees: Relationship with Steroids and PTH. IADR – Continental European and Israeli Divisions, Thessaloniki, September 2007.