Results 71 to 80 of about 236,238 (308)

Primary empty sella

Revista de la Facultad de Ciencias Médicas de Córdoba
Introduction: Primary empty sella (PES) consists of herniation of the suprasellar subarachnoid space within the sella turcica in patients with no history of sellar pathology. Diagnosis is mostly made incidentally.
Natalia Soledad Leon, Soledad Sosa, Nicolas Coronel-Restrepo, Analía Pignatta, Daniel Moncet, Jose Daniel Morando, Monica Graciela Loto, Marisol Escudero, Elizabeth Coronello, Leonardo Luis Rizzo , Karina Danilowicz   +10 more
doaj   +1 more source

Clonal Composition of Human Adrenocortical Neoplasms [PDF]

, 1994
The mechanisms of tumorigenesis of adrenocortical neoplasms are still not understood. Tumor formation may be the result of spontaneous transformation of adrenocortical cells by somatic mutations.
Abdelhamid, S., Allolio, B., Beuschlein, Felix, Chrousos, G. P., Jaursch-Hancke, C., Karl, M., Reincke, Martin, Travis, W.   +7 more
core  

A rare cause of recurrent spontaneous pneumothorax: Birt-hogg-dube syndrome [PDF]

, 2018
Birt-Hogg-Dube (BHD) syndrome is an unusual disorder characterized by the triad of cutaneous lesions, renal tumors and lung cysts. In cases with BHD syndrome, the frequency of recurrent pneumothorax is increased due to presence of multiple lung cysts. It
Demirci, M., Karaman, Engin, Ufuk, F., Yavaş, H.G.   +3 more
core   +1 more source

Pituitary Surgery for Cushing’s Disease [PDF]

Neuroendocrinology, 2010
In this article, the present status of neurosurgical operations for Cushing’s disease is briefly reviewed. Transsphenoidal surgery is considered the treatment of choice in most patients with Cushing’s disease once the diagnosis has been established. In a considerable proportion of patients, even sophisticated imaging does not directly depict the tiny ...
Buchfelder, Michael, Schlaffer, Sven
openaire   +3 more sources

Fosl2 Regulates FSH‐Dependent Follicle Maturation Through Feedback Amplification of FSH/FSHR Signaling

Advanced Science, EarlyView.
This study identifies a FOSL2‐driven positive feedback loop that amplifies FSH/FSHR signaling. During FSH‐dependent follicle maturation, FSH induces Fosl2 expression via the cAMP‐PKA‐CREB cascade. FOSL2 in turn binds the promoters of Fshr and estrogen‐biosynthesis genes to enhance their transcription, thereby increasing Fshr mRNA level and amplifying ...
Hongru Shi, Chaoli Chen, Zaohong Ran, Jianning Liao, Zian Wu, Xiaodong Wang, Yongheng Zhao, Wenkai Ke, Bowen Tan, Yun Liu, Youqiang Su, Wei Ren, Xiang Li, Changjiu He   +13 more
wiley   +1 more source

Recent advances in vasoactive intestinal peptide physiology and pathophysiology: focus on the gastrointestinal system. [PDF]

, 2019
Vasoactive intestinal peptide (VIP), a gut peptide hormone originally reported as a vasodilator in 1970, has multiple physiological and pathological effects on development, growth, and the control of neuronal, epithelial, and endocrine cell functions ...
Akiba, Yasutada, Iwasaki, Mari, Kaunitz, Jonathan D   +2 more
core  

Paternal Caffeine Exposure Programs Offspring Stress Vulnerability via Sperm Dlk1‐Dio3 Imprinting‐Directed Remodeling of a Novel Neural Circuit

Advanced Science, EarlyView.
The study elucidates that paternal preconception stress can drive offspring hyperresponsivity of the stress system via hypomethylation of a specific DNA region in sperm. This key link is confirmed in a cohort of prospective fathers: the epigenetic alteration is associated with elevated stress hormone levels.
Mengxi Lu, Gaole Dai, Sen Zhu, Shuai Zhang, Tingting Wang, Yuan Meng, Fang Yang, Xiaoyi Han, Hui Wang, Hao Kou, Dan Xu   +10 more
wiley   +1 more source

Temporal and spatial dynamics of corticosteroid receptor down-regulation in rat brain following social defeat [PDF]

, 2001
The experiments explored the nature and time course of changes in glucocorticoid receptor (GR) and mineralocorticoid receptor (MR) binding in homogenates of various brain regions and pituitary of male Wistar rats following social defeat stress.
Boer, Sietse F. de,, Bohus, Béla,, Buwalda, Bauke,, Felszeghy, Klára,, Horváth, Katalin M.,, Koolhaas, Jaap M.,, Nyakas, Csaba,   +6 more
core   +1 more source

A Hybrid Transfer Learning Framework for Brain Tumor Diagnosis

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
A novel hybrid transfer learning approach for brain tumor classification achieves 99.47% accuracy using magnetic resonance imaging (MRI) images. By combining image preprocessing, ensemble deep learning, and explainable artificial intelligence (XAI) techniques like gradient‐weighted class activation mapping and SHapley Additive exPlanations (SHAP), the ...
Sadia Islam Tonni, Md. Alif Sheakh, Mst. Sazia Tahosin, Md. Zahid Hasan, Taslima Ferdaus Shuva, Touhid Bhuiyan, Muhammad Ali Abdullah Almoyad, Nabil Anan Orka, Md. Tanvir Rahman, Risala Tasin Khan, M. Shamim Kaiser, Mohammad Ali Moni   +11 more
wiley   +1 more source

Patient Characteristics, Diagnostic Delays, Treatment Patterns, Treatment Outcomes, Comorbidities, and Treatment Costs of Acromegaly in China: A Nationwide Study

Frontiers in Endocrinology, 2020
PurposeAcromegaly is a rare, intractable endocrine disease. We aimed to describe the patient characteristics, diagnostic delays, treatment patterns, treatment outcomes, comorbidities and treatment costs of acromegaly in China.MethodsThis is a nationwide ...
Xiaopeng Guo, Xiaopeng Guo, Xiaopeng Guo, Xiaopeng Guo, Kailu Wang, Siyue Yu, Lu Gao, Lu Gao, Lu Gao, Lu Gao, Zihao Wang, Zihao Wang, Zihao Wang, Zihao Wang, Huijuan Zhu, Huijuan Zhu, Huijuan Zhu, Huijuan Zhu, Bing Xing, Bing Xing, Bing Xing, Bing Xing, Bing Xing, Shuyang Zhang, Shuyang Zhang, Dong Dong, Dong Dong   +26 more
doaj   +1 more source