Am J Perinatol 2005; 22(3): 161-164
DOI: 10.1055/s-2005-864853
Copyright © 2005 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001, USA.

Serum Leptin Levels in Preeclamptic Pregnant Women: Relationship to Thyroid-Stimulating Hormone, Body Mass Index, and Proteinuria

Alparslan Baksu1 , Arzu Ozkan1 , Nimet Goker1 , Başak Baksu1 , Aygul Uluocak2
  • 11st Obstetrics and Gynecology Clinic, Sisli Etfal Training and Research Hospital, Istanbul, Turkey
  • 2Biochemistry and Clinical Biochemistry Clinic, Sisli Etfal Training and Research Hospital, Istanbul, Turkey
Further Information

Publication History

Publication Date:
11 April 2005 (online)

ABSTRACT

The objective of this study was to evaluate the change in maternal serum leptin levels in preeclampsia and to study the relationship between maternal serum leptin and thyroid-stimulating hormone (TSH), body mass index (BMI), newborn weight, and proteinuria. Eighty-five pregnant women were included in this prospective study, of whom 50 were preeclamptic and 35 were normotensive. Maternal serum leptin levels were measured by the radioimmunoassay technique and TSH levels were measured by the electrochemiluminescence immunoassay method. The maternal serum leptin levels of preeclamptic and normotensive pregnant women were compared. In each group, the relationship between maternal serum leptin levels and TSH levels, BMI, newborn weight, and proteinuria was evaluated. The maternal serum leptin level was significantly higher in the preeclamptics than in the normotensive pregnant women. In the preeclamptic group, there was a strong positive correlation between maternal serum leptin levels and BMI (r =- 0.80; p < 0.001), a very weak positive correlation between maternal serum leptin levels and proteinuria (r = 0.305; p < 0.05), and a very weak inverse correlation between maternal serum leptin levels and birth weight (r = -0.377; p < 0.01). In the same group, there was no correlation between maternal serum leptin and serum TSH levels (r = 0.22; p > 0.05; Pearson correlation test). Leptin may be involved in the pathology of preeclampsia, and elevated maternal serum leptin levels may be a marker for the early stages of preeclampsia in pregnant women.

REFERENCES

  • 1 Bajoria R, Sooranna S R, Ward B S, Chatterjee R. Prospective function of placental leptin at maternal-fetal interface.  Placenta. 2002;  23 103-115
  • 2 Haynes W G, Morgan D A, Walsh S A, Sivitz W I, Mork A L. Cardiovascular consequences of obesity: role of leptin.  Clin Exp Pharmacol Physiol. 1998;  25 65-69
  • 3 Senaris R, Garcia-Caballero T, Casabiell X et al.. Synthesis of leptin in human placenta.  Endocrinology. 1997;  138 4501-4504
  • 4 Henson M C, Swan K F, O'Neil J S. Expression of placental leptin and leptin receptor transcripts in early pregnancy and term.  Obstet Gynecol. 1998;  92 1020-1028
  • 5 Macut D, Micic D, Pralong F P, Bischof P, Campana A. Is there a role for leptin in human reproduction?.  Gynecol Endocrinol. 1998;  12 321-326
  • 6 Senaris R, Garcia-Caballero T, Casabiell X et al.. Synthesis of leptin in human placenta.  Endocrinology. 1997;  138 4501-4504
  • 7 Tamas P, Sulyok E, Szabo I et al.. Changes of maternal serum leptin levels during pregnancy.  Gynecol Obstet Invest. 1998;  46 169-171
  • 8 Schubring C, Englaro P, Siebler T et al.. Longitudinal analysis of maternal serum leptin levels during pregnancy, at birth and up to six weeks after birth; relation to body mass index, skinfolds, sex steroids and umbilical cord blood leptin levels.  Horm Res. 1998;  50 276-283
  • 9 Mise H, Sagawa N, Matsumoto T et al.. Augmented placental production of leptin in preeclampsia: possible involvement of placental hypoxia.  J Clin Endocrinol Metab. 1998;  83 3225-3229
  • 10 McCarthy J F, Misra D N, Roberts J M. Maternal plasma leptin is increased in preeclampsia and positively correlates with fetal cord concentration.  Am J Obstet Gynecol. 1999;  180 731-736
  • 11 Laivuori H, Kaaja R, Koistinen H et al.. Leptin during and after preeclamptic or normal pregnancy: its relation to serum insulin and insulin sensitivity.  Metabolism. 2000;  49 259-263
  • 12 Thomas A E, McKay D A, Cutlip M B. A nomograph method for assessing body weight.  Am J Clin Nutr. 1976;  29 302-306
  • 13 Genbacev O, Joslin R, Damsky C H, Polliotti P M, Fisher S J. Hypoxia alters early gestation human cytotrophoblast differentiation and invasion in vitro and models the placental defects that occur in preeclampsia.  J Clin Invest. 1996;  97 540-550
  • 14 Collins S, Kuhn C M, Petro A E, Swick A G, Chrunyk B A, Sunvit R S. Role of leptin in fat regulation.  Nature. 1996;  380 677-682
  • 15 Schobel H P, Fischer T, Heuszer K, Geiger H, Schmieder R E. Preeclampsia is a state of sympathetic overactivity.  N Engl J Med. 1996;  335 1480-1485
  • 16 Considine R V, Sinha M K, Heiman M, Kriauciunas A, Stephens T W, Nyce M R. Serum immunoreactive leptin concentrations in normal-weight and obese humans.  N Engl J Med. 1996;  334 292-295
  • 17 Anim-Nyame N, Sooranna S R, Steer P J, Johnson M R. Longitudinal analysis of maternal plasma leptin concentrations during normal pregnancy and preeclampsia.  Hum Reprod. 2000;  15 2033-2036
  • 18 McCarthy J F, Misra D N, Roberts J M. Maternal plasma leptin is increased in preeclampsia and positively correlates with fetal cord concentration.  Am J Obstet Gynecol. 1999;  180 731-736
  • 19 Yoshida T, Momotani N, Hayashi M, Monkawa T, Ito K, Saruta T. Serum leptin concentrations in patients with thyroid disorders.  Clin Endocrinol (Oxf). 1998;  48 299-302
  • 20 Ozata M, Ozisik G, Bingol N, Corakci A, Gundogan M A. The effects of thyroid status on plasma leptin levels in women.  J Endocrinol Invest. 1998;  21 337-341
  • 21 Alagna S, Cossu M L, Masala A et al.. Evaluation of serum leptin levels and thyroid function in morbid obese patients treated with bariatric surgery.  Eat Weight Disord. 2003;  8 95-99
  • 22 Erel C T, Senturk L M, Kaleli S, Gezer A, Baysal B, Tasan E. Is serum leptin level regulated by thyroid functions, lipid metabolism, and insulin resistance in polycystic ovary syndrome?.  Gynecol Endocrinol. 2003;  17 223-229
  • 23 Mantzoros C S, Rosen H N, Greenspan S L, Flier J S, Moses A C. Short-term hyperthyroidism has no effect on leptin levels in man.  J Clin Endocrinol Metab. 1997;  82 497-499
  • 24 Iglesias P, Alvarez F P, Codoceo R, Diez J J. Serum concentrations of adipocytokines in patients with hyperthyroidism and hypothyroidism before and after control of thyroid function.  Clin Endocrinol (Oxf). 2003;  59 621-629
  • 25 Tamura T, Goldenberg R L, Johnston K E, Cliver S P. Serum leptin concentrations during pregnancy and their relationship to fetal growth.  Obstet Gynecol. 1998;  91 389-395

Alparslan BaksuM.D. 

Ferah mah. Nato Yolu, Doktorlar Sitesi A-9 Blok

Daire-9, Üsküdar-İstanbul 34100, Turkey