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الفصل 21
ما هو جهاز الغدد الصماء؟
The endocrine system sends hormones—chemical signals—through the bloodstream to target cells—the cells the hormones selectively…
أنواع الهرمونات
Hormones can be classified into three main types based on their chemical structures: steroids, peptides, and amines. Their actions are mediated by…
مستقبلات الهرمون داخل الخلايا
Lipid-soluble hormones diffuse across the plasma and nuclear membrane of target cells to bind to their specific intracellular receptors. These…
تأشير سطح الخلية
Hormones—or any molecule that binds to a receptor, known as a ligand—that are lipid-insoluble (water-soluble) are not able to diffuse…
حلقات التغذية الرجعية
In most cases, excessive hormone production is prevented by negative feedback—a loop that starts with a stimulus inducing the release of a…
المحور تحت المهادي - النخامي
The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA)…
A Chemical Screening Procedure for Glucocorticoid Signaling with a Zebrafish Larva Luciferase Reporter System
Glucocorticoid stress hormones and their artificial derivatives are widely used drugs to treat inflammation, but long-term treatment with…
تقييم آثار المركبات على تطوير شبكات عصبونية الفقاريات دالة باستخدام صفائف متعدد القطب الصماء
Bis-phenols, such as bis-phenol A (BPA) and bis-phenol-S (BPS), are polymerizing agents widely used in the production of plastics and numerous…
جمع عينات من الشعر للشعر الكورتيزول التحليل في الأمريكيين من أصل أفريقي
The hormone cortisol is typically assessed in saliva, serum, or urine samples. More recently, cortisol has been successfully extracted from hair,…

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