Related Experiment Video
Updated: Feb 8, 2026
06:50
A High-Throughput Electrochemiluminescence 7-Plex Assay Simultaneously Screening for Type 1 Diabetes and Multiple Autoimmune Diseases
Published on: May 29, 2020
3.1K
Update on multiple endocrine neoplasia Type 1 and 2
Abdallah Al-Salameh1, Camille Baudry2, Régis Cohen3
1Hôpital Bicêtre, Assistance publique-Hôpitaux de Paris, centre de recherche clinique et service d'endocrinologie et des maladies de la reproduction, 78, rue du Général-Leclerc, 94270 Le Kremlin-Bicêtre, France.
Presse Medicale (Paris, France : 1983)
|June 18, 2018
Summary
Multiple endocrine neoplasia (MEN) syndromes, including MEN1 and MEN2, require vigilant screening and early intervention. Early detection of tumors and genetic mutations is crucial for effective management and improved patient outcomes in these rare genetic disorders.
Area of Science:
- Endocrinology
- Genetics
- Oncology
Background:
- Multiple endocrine neoplasia type 1 (MEN1) and type 2 (MEN2) are rare genetic syndromes.
- MEN1 involves tumors of the parathyroid, pancreas, pituitary, adrenals, and neuroendocrine system.
- MEN2 is characterized by medullary thyroid carcinoma, pheochromocytoma, and hyperparathyroidism.
Purpose of the Study:
- To outline screening and management strategies for MEN1 and MEN2.
- To emphasize the importance of early tumor detection and genetic testing.
- To highlight the role of multidisciplinary care and patient involvement.
Main Methods:
- Biochemical and imaging screening for MEN1.
- Genetic testing for MEN1 and RET gene mutations in MEN2.
- Prophylactic thyroidectomy for children with aggressive RET mutations.
- Surgical intervention upon diagnosis for clinical MEN2.
- Monitoring of tumor progression, particularly duodenopancreatic and thymic neuroendocrine tumors in MEN1.
- Utilizing calcitonin and CEA as tumor markers for MEN2.
Main Results:
- Screening detects tumors and monitors progression in MEN1.
- Prophylactic thyroidectomy prevents medullary thyroid carcinoma in at-risk children.
- Calcitonin and CEA levels correlate with tumor size and predict cure in MEN2.
- Doubling time of calcitonin or CEA is a significant prognostic indicator in MEN2.
- Early detection of thymic neuroendocrine tumors in MEN1 is critical due to their lethality.
Conclusions:
- Regular screening and timely interventions are vital for managing MEN1 and MEN2.
- Genetic counseling and prophylactic measures significantly improve outcomes.
- Multidisciplinary team approaches and adherence to guidelines are essential for optimal patient care.
- Patient education and participation in decision-making enhance treatment effectiveness.
Related Concept Videos
01:45Endocrine Signaling
68.2K
Endocrine cells produce hormones to communicate with remote target cells found in other organs. The hormone reaches these distant areas using the circulatory system. This exposes the whole organism to the hormone but only those cells expressing hormone receptors or target cells are affected. Thus, endocrine signaling induces slow responses from its target cells but these effects also last longer.
68.2K
02:27Predicting Products: SN1 vs. SN2
17.4K
Nucleophilic substitution reactions of alkyl halides can proceed via an SN1 or an SN2 mechanism. While in SN2 reactions, the nucleophile attacks the substrate simultaneously as the leaving group departs, in SN1 reactions, the substrate first dissociates to give the carbocation intermediate. Various factors such as the structure of the substrate, the strength of the nucleophile, and the nature of the solvent promote one mechanism over the other.
With increased substitution on the alkyl halide,...
With increased substitution on the alkyl halide,...
17.4K
00:46What is the Endocrine System?
420.9K
The endocrine system sends hormones—chemical signals—through the bloodstream to target cells—the cells the hormones selectively affect. These signals are produced in endocrine cells, secreted into the extracellular fluid, and then diffuse into the blood. Eventually, they diffuse out of the blood and bind to target cells which have specialized receptors to recognize the hormones.
420.9K
01:29The Endocrine System
1.4K
The endocrine system is an extensive network of glands – organs or tissues in the body that create chemicals that control many bodily functions, that secrete hormones, which are chemical messengers that play essential roles in regulating various bodily functions. These hormones are secreted into the bloodstream and travel throughout the body. They require specific receptors to convey signals to cells possessing these corresponding receptors. This complex signaling mechanism ensures that...
1.4K
01:10An Overview of the Endocrine System
14.3K
The endocrine system, a complex network of glands, orchestrates physiological balance within the body through the production and secretion of hormones. These hormones are chemical messengers in intercellular communication, acting as conduits between the secretory cells and distant target sites. They traverse the circulatory system by being released into the extracellular fluid, and their impact is specific to cells possessing receptors for a particular hormone.
The endocrine system collaborates...
The endocrine system collaborates...
14.3K
00:59Structures of the Endocrine System
12.2K
The intricate framework of the endocrine system encompasses a diverse array of glands, with their target tissues and organs strategically distributed throughout the body. Central to this network are the endocrine glands, specialized structures that lack ducts and release hormones directly into the interstitial fluid. Notably, the hypothalamus, a vital neuroendocrine organ situated in the brain, governs neural functions and serves as a potent source of hormonal regulation. Near the hypothalamus...
12.2K