Luis V. Syro, Humberto Uribe, Luis C. Penagos, León Darío Ortiz, Camilo E. Fadul, Éva Horváth, Kálmán Kovács,
... Ontario, CanadaSearch for more papers by this authorKalman Kovacs, Kalman Kovacs Department of Laboratory Medicine, St Michael's ... Ontario, CanadaSearch for more papers by this authorKalman Kovacs, Kalman Kovacs Department of Laboratory Medicine, St Michael's Hospital, ...
Tópico(s): Neuroblastoma Research and Treatments
2006 - Wiley | Clinical Endocrinology
Lucia Ştefăneanu, Kálmán Kovács, Éva Horváth, L. Sylvia, Noemi E. Losinski, Nils Billestrup, Jenny Price, Wylie Vale,
... this author on: Oxford Academic Google Scholar KALMAN KOVACS, KALMAN KOVACS 1Department of Pathology, St. Michael's Hospital, University ...
Tópico(s): Digestive system and related health
1989 - Oxford University Press | Endocrinology
Shozo Yamada, L. Sylvia, Kálmán Kovács, Paul Muller, Harley S. Smyth,
... this author on: Oxford Academic Google Scholar KALMAN KOVACS, KALMAN KOVACS 1Departments of Pathology (S.Y., S.L.A., ...
Tópico(s): Glioma Diagnosis and Treatment
1989 - Oxford University Press | The Journal of Clinical Endocrinology & Metabolism
George T. Tindall, Kálmán Kovács, Éva Horváth, Michael O. Thorner,
... this author on: Oxford Academic Google Scholar KALMAN KOVACS, KALMAN KOVACS 1Section of Neurosurgery, Emory University Clinic, Atlanta, Georgia ...
Tópico(s): Neuroblastoma Research and Treatments
1982 - Oxford University Press | The Journal of Clinical Endocrinology & Metabolism
Donna J. McComb, Nancy Ryan, Éva Horváth, Kálmán Kovács, Éva Nagy, István Berczi, I. Domokos, Ferenc László,
... author on: Oxford Academic PubMed Google Scholar Kalman Kovacs, Kalman Kovacs Search for other works by this author on: ...
Tópico(s): Neuroblastoma Research and Treatments
1981 - Oxford University Press | JNCI Journal of the National Cancer Institute
Gerard N. Burrow, George Wortzman, N. Barry Rewcastle, Richard C. Holgate, Kálmán Kovács,
... WORTZMAN, GEORGE; REWCASTLE, NEILL B.; HOLGATE, RICHARD C.; KOVACS, KALMAN Author Information
Tópico(s): Breast Lesions and Carcinomas
1981 - Lippincott Williams & Wilkins | Obstetrical & Gynecological Survey
Bernd W. Scheithauer, Toshiaki Sano, Kálmán Kovács, William F. Young, Nancy Ryan, Raymond V. Randall,
SCHEITHAUER, BERND W.; SANO, TOSHIAKI; KOVACS, KALMAN T.; YOUNG, WILLIAM F. JR.; RYAN, NANCY; RANDALL, RAYMOND V. Author Information
Tópico(s): Cancer Risks and Factors
1990 - Lippincott Williams & Wilkins | Obstetrical & Gynecological Survey
Kálmán Kovács, Nancy Ryan, Éva Horváth, William Singer, C. Ezrin,
... Pituitary Adenomas in Old Age Get access Kalman Kovacs, MD, Kalman Kovacs, MD 2Dept. of Pathology, St. Michael's Hospital, ...
Tópico(s): Adrenal Hormones and Disorders
1980 - Oxford University Press | Journal of Gerontology
I. Coirç Claire, Éva Horváth, Kovacs Kalman, S. Smyth Harley, Sasano Hironobu, Lino Kazumi, S. Feig Denice,
A case report of an extraordinary sellar pituitary tumor composed of corticotrophs and adrenocortical cells is presented. To our knowledge, this is only the second one reported in the literature.An 18-year-old female patient presented with amenorrhea.Investigations revealed a sellar mass, which was excised transsphenoidally. Histologically, two cell types could be readily distinguished, i.e., small basophilic cells that were positive for periodic acid Schiff and adrenocorticotropic hormone and large ...
Tópico(s): Hormonal Regulation and Hypertension
1998 - Lippincott Williams & Wilkins | Neurosurgery
Kálmán Kovács, Éva Horváth, N Kerényi, Robert H. Sheppard,
... Adenoma in Nelson's Syndrome Get access Kalman Kovacs, M.D., Kalman Kovacs, M.D. Search for other works by this ...
Tópico(s): Glioma Diagnosis and Treatment
1976 - Oxford University Press | American Journal of Clinical Pathology
V. Brückner, Joseph A. Kovacs, Kálmán Kovács,
V. Bruckner, J. Kovács and K. Kovács, J. Chem. Soc., 1953, 1512 DOI: 10.1039/JR9530001512
Tópico(s): Chemical Synthesis and Analysis
1953 - Chemical Society | Journal of the Chemical Society (Resumed)
Kálmán Kovács, Nancy Ryan, Éva Horváth, William Singer, C. Ezrin,
Kovacs, Kalman; Ryan, Nancy; Horvath, Eva; Singer, William; Ezrin, Calvin Author Information
Tópico(s): Pituitary Gland Disorders and Treatments
1980 - Lippincott Williams & Wilkins | Obstetrical & Gynecological Survey
... Producing Corticotrophin-Releasing FactorSYLVIA L. ASA, M.D., KALMAN KOVACS, M.D., Ph.D., GEORGE T. TINDALL, M. ... VECSEI, M.D.SYLVIA L. ASA, M.D., KALMAN KOVACS, M.D., Ph.D., GEORGE T. TINDALL, M. ...
Tópico(s): Peripheral Neuropathies and Disorders
1984 - American College of Physicians | Annals of Internal Medicine
Zoltán Ruzsa, Károly Tóth, Balázs Nemes, István Édes, Sándor Nardai, Balázs Berta, Nándor Kovács, Kálmán Hüttl, Béla Merkely,
Purpose Our aim was to evaluate the acute success and complication rates of the transradial and transulnar access for iliac artery stenting using sheathless guiding systems. Methods Clinical and angiographic data from 156 consecutive patients with symptomatic iliac artery stenosis who were treated with transradial or transulnar access were evaluated. All patients underwent Duplex ultrasound before and after the intervention. The primary endpoints were the procedural success rate, major adverse events, ...
Tópico(s): Central Venous Catheters and Hemodialysis
2016 - Wiley | Catheterization and Cardiovascular Interventions
Joseph A. Kovacs, V. Brückner, Kálmán Kovács,
J. Kovács, V. Bruckner and K. Kovács, J. Chem. Soc., 1953, 145 DOI: 10.1039/JR9530000145
Tópico(s): Chemical Synthesis and Analysis
1953 - Chemical Society | Journal of the Chemical Society (Resumed)
Christopher S. Kovacs, Robert M. Masé, Kalman Kovacs, Gia‐Khanh Nguyen, Constance L. Chik,
Background. Thyroid carcinomas historically have been divided into two groups according to their presumedly separate embryonic origins: those of neuroectodermal derivation (parafollicular or medullary carcinoma [MCT]) and those of foregut endodermal origin (follicular and papillary carcinomas). The validity of this concept has been questioned by the recognition that some MCT may show immunocytochemical and ultrastructural evidence of follicular components, and display features of follicular function ( ...
Tópico(s): Thyroid Disorders and Treatments
1994 - Wiley | Cancer
Gail A. Stilling, Zhifu Sun, Shuya Zhang, Long Jin, Alberto Righi, Gábor L. Kovaćs, Márta Korbonits, Bernd W. Scheithauer, Kálmán Kovács, Ricardo V. Lloyd,
Tópico(s): Circular RNAs in diseases
2010 - Springer Science+Business Media | Endocrine
V. Brückner, Joseph A. Kovacs, Kálmán Kovács, Henriett Nagy,
Poly-d-glutamic acid isolated from the culture medium ofBac. subtilis was converted to the corresponding polyamide and then subjected toHofmann degradation and acid hydrolysis. The amount of formed β-formylpropionic acid suggests such a predominancy of the γ-glutamyl bonds that an eventual presence of α-glutamyl bonds hardly requires further consideration.
Tópico(s): Amino Acid Enzymes and Metabolism
1953 - Birkhäuser | Experientia
Bernadett Nagy, Júlia Szekeres‐Barthó, Gábor L. Kovaćs, Endre Sulyok, Bálint Farkas, Ákos Várnagy, Viola Vértes, Kálmán Kovács, József Bódis,
The most recent studies of progesterone research provide remarkable insights into the physiological role and clinical importance of this hormone. Although the name progesterone itself means "promoting gestation", this steroid hormone is far more than a gestational agent. Progesterone is recognized as a key physiological component of not only the menstrual cycle and pregnancy but also as an essential steroidogenic precursor of other gonadal and non-gonadal hormones such as aldosterone, cortisol, estradiol, ...
Tópico(s): Menstrual Health and Disorders
2021 - Multidisciplinary Digital Publishing Institute | International Journal of Molecular Sciences
Gábor L. Kovaćs, Miklós Góth, Fabio Rotondo, Bernd W. Scheithauer, Eivind Carlsen, Ali Saadia, Erika Hubina, László Kovács, I. Szabolcs, Pál Nagy, Sándor Czirják, Zoltán Hanzély, Kálmán Kovács, Éva Horváth, Márta Korbonits,
Eur J Clin Invest 2012 Abstract Purpose While pituitary adenomas are common, pituitary carcinomas are rare. It is unclear whether pituitary carcinomas arise de novo or evolve from adenomas. Methods We studied the clinical characteristics and tissue samples from eight pituitary surgeries and the autopsy from a patient with pituitary carcinoma. A 16‐year‐old female patient was diagnosed with an aggressive Crooke cell macroadenoma. Following transsphenoidal surgery, clinical signs of Cushing disease ...
Tópico(s): Adrenal and Paraganglionic Tumors
2012 - Wiley | European Journal of Clinical Investigation
Kálmán Kovács, Bernd W. Scheithauer, Matilde Lombardero, Roger E. McLendon, Luis V. Syro, Humberto Uribe, León Darío Ortiz, Luis C. Penagos,
Tópico(s): Brain Metastases and Treatment
2007 - Springer Science+Business Media | Acta Neuropathologica
Vera Popović, Sandra Pekić, Milica Skender-Gazibara, Fateme Salehi, Kálmán Kovács,
Tópico(s): Tumors and Oncological Cases
2007 - Springer Science+Business Media | Endocrine Pathology
Fausto J. Rodríguez, Bernd W. Scheithauer, Shigeru Tsunoda, Kálmán Kovács, Sergio Vidal, David G. Piepgras,
Craniopharyngiomas are low-grade epithelial neoplasms occurring almost exclusively in the sellar/suprasellar region. Histologic malignancy is extremely rare; the literature consists mostly of isolated case reports. Herein, we report 3 patients with craniopharyngiomas exhibiting histologic malignancy, 2 of which received radiation therapy before its appearance. Hematoxylin and eosin-stained slides and selected immunohistochemical stains were reviewed in all cases. Microvessel density analysis was ...
Tópico(s): Oral and Maxillofacial Pathology
2007 - Lippincott Williams & Wilkins | The American Journal of Surgical Pathology
Bernd W. Scheithauer, Ana Isabel Silva, Keith A. Kattner, Jason Seibly, André M. Oliveira, Kálmán Kovács,
Primary sarcomas of the sellar region are uncommon, although a wide variety have been reported. To date, no cases of primary synovial sarcoma have been described as occurring at this site. We report an immunohistochemically and molecular genetically confirmed primary synovial sarcoma involving the sellar/parasellar region and cavernous sinus in an adult male. Subtotal resection and radiosurgery proved to be efficacious. The spectrum of primary sellar region sarcomas is summarized.
Tópico(s): Cardiac tumors and thrombi
2007 - Oxford University Press | Neuro-Oncology
Yoshinori Tanizaki, Long Jin, Bernd W. Scheithauer, Kálmán Kovács, Federico Roncaroli, Ricard V. Lloyd,
Tópico(s): Glioma Diagnosis and Treatment
2007 - Springer Science+Business Media | Endocrine Pathology
Ferenc Lengyel, Zsuzsanna Vértes, Kálmán Kovács, J. Környei, Balázs Sümegi, Marietta Vértes,
The importance of FOXO transcription factors in regulating different aspects of cellular homeostasis and apoptosis has become apparent. Akt/protein kinase B has been shown to phosphorylate and inactivate members of FOXO family of transcription factors. Akt and its upstream regulator, phosphatidylinositol-3 kinase (PI3K) are involved in rapid action of estrogen (E2) in different cells and tissues. The aim of the present study was to analyze the E2/PI3K/Akt/FOXO pathway in rat uterus. In response to ...
Tópico(s): Reproductive System and Pregnancy
2007 - Elsevier BV | Steroids
Fateme Salehi, Kálmán Kovács, Bernd W. Scheithauer, Eric A. Pfeifer, Michael D. Cusimano,
Purpose: Approximately 25% of patients with traumatic brain injury (TBI) may develop partial or complete hypopituitarism. The causative mechanisms involved in its development are not clear. To the authors' knowledge, there have been no recent morphologic studies of the pituitary following TBI.Methods: To characterize the resultant histologic changes, this study investigated the pituitaries of 42 patients who died following a motor vehicle accident, all from the Mayo Tissue Registry. Twelve patients ...
Tópico(s): Traumatic Brain Injury and Neurovascular Disturbances
2007 - Taylor & Francis | Brain Injury
C. Vadász, John F. Smiley, Khadija Figarsky, Mariko Saito, Réka Tóth, Beatrix Gyetvai, Miguel Oros, Kalman Kovacs, Panaiyur S. Mohan, Ray Wang,
The mesotelencephalic dopamine system shows substantial genetic variation which fundamentally affects normal and pathological behaviors related to motor function, motivation, and learning. Our earlier radioenzyme assay studies demonstrated significantly higher activity of tyrosine hydroxylase (TH), the first and rate limiting enzyme in the biosynthesis of catecholamine neurotransmitters, in the substantia nigra–ventral tegmental area of BALB/cJ mice in comparison with that of C57BL/6ByJ mice. Here, ...
Tópico(s): Nerve injury and regeneration
2007 - Elsevier BV | Neuroscience
Katharina H. Ruebel, Alexey A. Leontovich, Long Jin, Gail A. Stilling, Heyu Zhang, Xiang Qian, Nobuki Nakamura, Bernd W. Scheithauer, Kálmán Kovács, Ricardo V. Lloyd,
Tópico(s): Neurofibromatosis and Schwannoma Cases
2006 - Springer Science+Business Media | Endocrine
Bernd W. Scheithauer, Thomas A. Gaffey, Ricardo V. Lloyd, Thomas J. Sebo, Kálmán Kovács, Éva Horváth, Özlem Yapcer, William F. Young, Fredric B. Meyer, Tamatsu Kuroki, Darren Riehle, Edward R. Laws,
OBJECTIVE: To examine relationships between pituitary tumors and lesion size, invasiveness, resectability, deoxyribonucleic acid ploidy, cell cycle profile, mitotic activity, and immunoreactivity for MIB-1, proliferating cell nuclear antigen (PCNA), p27Kip1, and p53. PATIENTS AND METHODS: One hundred fifty-three adenomas of most pathological subtypes, including 20 medically treated and prolactin and growth hormone-containing tumors, as well as 10 premetastatic tumors and 13 pituitary carcinomas, ...
Tópico(s): Adrenal and Paraganglionic Tumors
2006 - Lippincott Williams & Wilkins | Neurosurgery