Zeynel Beyhan

Liv Hospital Gaziantep

Endocrinology and Metabolic Diseases

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Areas of Interests

Diabetes (Diabetes)
Thyroid Diseases
Pituitary Diseases
Above Kidney Gland Diseases
Hyperlipidemia-Cholesterol
Calcium Excess (Hypercalcemia)
Goiter (enlargement of the thyroid gland)
Hirsutism (Hair Growth, Hair Growth)
Obesity
Hypertension
Female Hormone System Disorders and Diseases
Male Reproductive Hormone Disorders
Low Blood Sugar Diseases

Education

Gulhane Military Medical Academy and Faculty of Endocrinology and Metabolic Diseases / 1986-1988
Gulhane Military Medical Academy and Faculty of Internal Medicine / 1980-1984
Ankara University Faculty of Medicine / 1976

Experience

Liv Hospital Gaziantep / 2022-
Private Gaziantep Anka Hospital / 2016-2022
Sanko University, Faculty of Medicine, Department of Endocrinology and Metabolic Diseases / 2014-2016
Private Sani Konukoglu Hospital / 2009-2014
GATA Endocrinology / 1986-2008
GATA Haydarpaşa / 1984-1986
GATA Ankara / 1980-1984
Fifth Armored Brigade Command Gaziantep / 1977-1980

Articles published in international refereed journals (SCI & SSCI & Arts and Humanities)

1. Corakci, A., Bolu, E., Ozata, M., Azal, O., Beyhan, Z., Ozdemir, C., Gundogan, M.A., Elevated Plasma Endothelin in Non-Insulin-Dependent Diabetic Subjects with Microalbuminuria, Diabetologia, Vol. 35, No. 1, pp. A170-A170, Aug. 1992.
2. Bolu, E., Ozata, M., Azal, O., Corakci, A., Aynm, A., Beyhan, Z., Gundogan, M.A., Decreased Bone-Mineral Density in Men with Type-1, Insulin-Dependent Diabetic-Patients, Diabetologia, Vol. 35, No. 1, pp. A191-A191, Aug. 1992.
3. Ozata, M., Kurt, I., Azal, O., Bolu, E., Corakci, A., Beyhan, Z., Karaca, L., Gundogan, M.A., Can We Use Plasma Fibronectin Levels As a Marker for Early Diabetic Nephropathy, Endocrine Journal, Vol. 42, No. 2, pp. 301-305, Apr. 1995.
4. Ozata M., Bayhan, H., Bingol, N, Dundar, S., Beyhan, Z., Corakci, A., Gundogan, M.A., Sequential-Changes in Serum Thyroid Peroxidase Following Radioiodine Therapy of Patients with Differentiated Thyroid-Carcinoma, Journal of Clinical Endocrinology & Metabolism, Vol. 80, No. 12, pp. 3634-3638, Dec. 1995.
5. Ozata, M., Bulur, M., Bingol, N., Beyhan, Z., Corakci, A., Bolu, E., Gundogan, M.A., Daytime Plasma Melatonin Levels in Male Hypogonadism, Journal of Clinical Endocrinology & Metabolism, Vol. 81, No. 5, pp. 1877-1881, May 1996.
6. Ozata, M., Ozkardes, A., Bulur, M., Beyhan, Z., Corakci, A., Yardim, M., Gundogan, M.A., Central and Peripheral Neural Responses in Males with Idiopathic Hypogonadotropic Hypogonadism, Journal of Endocrinological Investigation, Vol. 19, No. 7, pp. 449-454, Jul.-Aug. 1996.
7. Ozata, M., Bolu, E., Sengul, A., Tasar, M., Beyhan, Z., Corakci, A., Gundogan, M.A., Effects of Octreotide Treatment on Graves' Ophthalmopathy and Circulating Sicam-1 Levels, Thyroid, Vol. 6, No. 4, pp. 283-288, Aug. 1996.
8. Ozkardes, A., Ozata, M., Beyhan, Z., Corakci, A., Vural, O., Yardim, M., Gundogan, M.A., Acute Hypothyroidism Leads to Reversible Alterations in Central Nervous System as Revealed by Somatosensory Evoked Potentials, Evoked Potentials-Electroencephalography and Clinical Neurophysiology, Vol. 100, No. 6, pp. 500-504, Nov. 1996.
9. Ozata, M., Tayfun, C., Kurtaran, K., Yetkin, I., Beyhan, Z., Corakci, A., Caglayan, S., Alemdaroglu, A., Gundogan, M.A., Magnetic Resonance Imaging of Posterior Pituitary for Evaluation of The Neurohypophyseal Function in Idiopathic and Autosomal Dominant Neurohypophyseal Diabetes Insipidus, European Radiology, Vol. 7, No. 7, pp. 1098-1102, 1997.
10. Ozata, M., Ozturk, E., Narin, Y., Tayfun, C., Azal, O., Beyhan, Z., Corakci, A., Bayhan, H., Gundogan, M.A., A Case of Thyrotropin-Secreting Pituitary Microadenoma with Normal Thyrotropin Alpha-Subunit Level, Thyroid, Vol. 7, No. 3, pp. 441-447, Jun. 1997.
11. Ozata, M., Bulur, M., Beyhan, Z., Sengul, A., Saglam, M., Turan, M., Corakci, A., Gundogan, M.A., Effects of gonadotropin and testosterone treatments on prostate volume and serum prostate specific antigen levels in male hypogonadism, Endocrine Journal, Vol. 44, No. 5, pp. 719-724, Oct. 1997.
12. Bayram, F., Kelestimur F., Ozturk, F., Selcuklu, A., Patiroglu, T.E., Beyhan, Z., Lymphocytic Hypophysitis in a Patient with Graves’ Disease, Journal of Endocrinological Investigation, Vol. 21, No. 3, pp. 193-197, Mar. 1998.
13. Ozata, M., Yildirimkaya, M., Yilmaz, K., Kutluay, T., Corakci, A., Beyhan, Z., Gundogan, M.A., The effects of thyroid status on serum apolipoprotein A-I-containing lipoprotein particles, Hormone and Metabolic Research, Vol. 30, No. 4, pp. 217-221, Apr. 1998.
14. Ozata, M., Ozisik, G., Caglayan, S., Yesilova, Z., Bingol, N., Saglam, M., Turan, M., Beyhan, Z., Effects of Gonadotropin and Testosterone Treatments on Plasma Leptin Levels in Male Patients with Idiopathic Hypogonadotropic Hypogonadism And Klinefelter's Syndrome, Hormone and Metabolic Research, Vol. 30, No. 5, pp. 266-271, May 1998.
15. Ozata, M., Beyhan, Z., Effects of Testosterone Treatment on Plasma Melatonin Levels in Male Hypogonadism, Clinical Endocrinology, Vol. 48, No. 5, pp. 669-670, May 1998.
16. Ozata, M., Uckaya G., Beyhan, Z., Ozdemir, I.C., Plasma Leptin Levels in Male Patients with Idiopathic Central Diabetes Insipidus, Journal of Endocrinological Investigation, Vol. 22, No. 6, pp. 451-454, Jun. 1999.
17. Ozata, M., Odabasi, Z., Caglayan, S., Beyhan, Z., Vural, O., Ozdemir, C., Event-Related Brain Potentials in Male Hypogonadism, Journal of Endocrinological Investigation, Vol. 22, No. 7, pp. 508-513, Jul.-Aug. 1999.
18. Ozata, M., Salk, M., Aydin, A., Sayin, S., Oktenli, C., Beyhan, Z., Isimer, A., Ozdemir, I.C., Iodine and Zinc, But Not Selenium And Copper, Deficiency Exists in a Male Turkish Population with Endemic Goiter, Biological Trace Element Research, Vol. 69, No. 3, pp. 211-216, Sep. 1999.
19. Ozcan, O., Cakir, E.,Yaman, H., Akgul, E.O., Erturk, K., Beyhan, Z., Bilgi, C., Erbil, M.K., The Effects of Thyroxine Replacement on the Levels of Serum Asymmetric Dimethylarginine (ADMA) and Other Biochemical Cardiovascular Risk Markers in Patients with Subclinical Hypothyroidism, Clinical Endocrinology, Vol. 63, No. 2, pp. 203-206, Aug. 2005.
20. Uckaya, G., Bolu, S.E., Kutlu, M., Yazici, M., Azal, O., Beyhan, Z., Ozgurtas, T., Arslan, N., Emer, T., Corakci, A., Effects of Antiandrogen Therapy on Bone Mineral Density and Plasma Amylin Levels in Patients with Polycystic Ovary Syndrome, Osteoporosis International, Vol. 17, No. 2, pp. S325-S325, May 2006.
21. Beyhan, Z., Erturk, K., Uckaya, G., Bolu, E., Yaman, H., Kutlu, M., Restoration of Euthyroidism Does Not Improve Cardiovascular Risk Factors in Patients with Subclinical Hypothyroidism in The Short Term, Journal of Endocrinological Investigation, Vol. 29, No. 6, pp. 505-510, Jun. 2006.
22. Sahin, M., Taslipinar, A., Kebapcilar, L., Yimaz, H., Akgul, E.O., Beyhan, Z., Ozgurtas, T., Yaman, H., Bolu, E., Taslipinar, M.Y., Delibasi, T., Kutlu, M., Low Vitamin D3 Levels in Euthyroid Hashimoto Thyroiditis. International Medical Journal. Vol. 19, No. 4, pp. 317-320, Dec. 2012.

Other Publications

1. Klinik Endokrinoloji ve Diyabet Derneği Obezite Kılavuzu 2022, Editör
2. Klinik Endokrinoloji ve Diyabet Derneği Tip 2 Diyabet Farmakolojik Tedavi Kılavuzu 2020, Editör

Clinical Endocrinology and Diabetes Association, Founder and Board Member
Turkish Society of Endocrinology and Metabolic Diseases
Turkish Obesity Association
Turkish Obesity Foundation
Turkish Diabetes Foundation

GATA 100th Anniversary National Medical Research Competition Second Prize / 1998
Third Place in GATA 100th Anniversary TAF Health Personnel Medical Research Competition / 1998