Publications by authors named "Caroline L Lopez"

Objective: Long-acting synthetic somatostatin analogues (SSA) are an essential part of the treatment of neuroendocrine neoplasms. We evaluated the chemopreventive effects of a long-acting somatostatin analogue on the development of pancreatic neuroendocrine neoplasms (pNENs) in a genetically engineered MEN1 knockout mouse model.

Materials And Methods: Heterozygote MEN1 knockout mice were injected every 28 days subcutaneously with the somatostatin analogue lanreotide (Somatuline Autogel©; Ipsen Pharma) or a placebo starting at day 35 after birth.

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Article Synopsis
  • Recent guidelines suggest starting routine screening for MEN1 mutation carriers at age 5 but this study evaluates organ manifestations in children under 18!
  • A review of two databases with 166 MEN1 patients found that only 12% of patients had clinically relevant organ manifestations before age 18!
  • The most common findings were mild asymptomatic primary hyperparathyroidism and pancreatic neuroendocrine tumors, indicating that severe symptoms are rare before age 16, suggesting screening may be better postponed until then for psychological and cost-effectiveness reasons!
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Background: Routine screening is recommended for patients with multiple endocrine neoplasia type 1 (MEN1) to enable early detection and treatment of associated neuroendocrine neoplasms (NEN). Gallium-DOTATOC-Positron emission tomography combined with computed tomography (Ga-68-DOTATOC-PET-CT) is a very sensitive and specific imaging technique for the detection of sporadic neuroendocrine tumors. The present study evaluated the value of Ga-68-DOTATOC-PET-CT in routine screening of patients with MEN1.

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Unlabelled: We report about a young female who developed an unusual and an aggressive phenotype of the MEN1 syndrome characterized by the development of a pHPT, malignant non-functioning pancreatic and duodenal neuroendocrine neoplasias, a pituitary adenoma, a non-functioning adrenal adenoma and also a malignant jejunal NET at the age of 37 years. Initial Sanger sequencing could not detect a germline mutation of the MEN1 gene, but next generation sequencing and MPLA revealed a deletion of the MEN1 gene ranging between 7.6 and 25.

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Objective: The role of minimally invasive pancreatic surgery for pancreatic neuroendocrine neoplasms (pNENs) in patients with multiple endocrine neoplasia type 1 (MEN1) is not well defined. The aim of this study was to compare the outcome of minimally invasive versus open pancreatic resections in patients with MEN1.

Materials And Methods: Prospectively collected data of MEN1 patients who underwent a primary distal pancreatic resection and/or enucleation for non-functioning pNENs or insulinoma were retrospectively analyzed regarding the outcome of minimally invasive or open pancreatic resections.

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Article Synopsis
  • This study focused on bronchopulmonary neuroendocrine tumors (bNET) in patients with multiple endocrine neoplasia type 1 (MEN1) to understand their prevalence, precursor lesions, and prognosis.
  • Five out of 75 MEN1 patients (6.6%) were found to have bNET after a median follow-up of 134 months, with all cases being asymptomatic and predominantly well differentiated.
  • The findings suggest that bNET in MEN1 are more common than thought, often have a benign course, and may be preceded by multifocal neuroendocrine changes and tumorlets.
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Background: Whole-body multislice computed tomography (WB-MSCT) has become an important diagnostic tool in the early treatment phase of severely injured patients. The optimal moment of WB-MSCT's use during this treatment phase remains unclear. Many trauma centers use WB-MSCT in addition to conventional radiographs, while some trauma centers use WB-MSCT as the only radiological tool.

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Trauma resuscitation in children, pregnant women, Jehovah's witnesses or in patients with infectious diseases like HIV is obviously beyond routine. This may result in uncertainty how to manage these patients appropriately. Preparation for such situations is essential.

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Damage Control is a strategy for the initial treatment phase in severely injured patients. The aim is to avoid time consuming surgical procedures thereby reducing secondary damage and to improve patients' outcome. Once the patient is haemodynamically stabilized on the intensive care unit, definitive therapy - i.

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Context: Sixty to 80% of multiple endocrine neoplasia type 1 (MEN1) patients develop pancreatic neuroendocrine neoplasias (pNENs), which reveal an aggressive behavior in 10%-20% of patients. Causative MEN1 mutations in the interacting domains of the encoded Menin protein directly alter its regulation abilities and may influence the phenotype.

Objective: The objective of the study was the evaluation of an association between MEN1 mutations in different interacting domains of Menin and the phenotype of pNENs.

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Objective: An observation of shortness among the female participants of a regular screening program in multiple endocrine neoplasia type 1 (MEN1) patients has raised the question as to whether shortness represents a phenotype characteristic of the disease.

Methods: The body height (cm) of genetically confirmed MEN1 patients at the time of diagnosis was compared with the body height of their unaffected relatives (parents, siblings, and children), the midparental body height, and the body height of the age-matched German population. Univariate analysis of the clinical variables was performed using the t-test, Mann–Whitney U test, and ANOVA as appropriate, and multivariate analysis was performed as a logistic regression analysis.

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Objective: To evaluate the outcome of pancreaticoduodenectomy (PD) versus non-PD resections for the treatment of gastrinoma in multiple endocrine neoplasia type 1.

Background: Gastrinoma in MEN1 is considered a rarely curable disease and its management is highly controversial both for timing and extent of surgery.

Methods: Clinical characteristics, complications and outcomes of 27 prospectively collected MEN1 patients with biochemically proven gastrinoma, who underwent surgery, were analyzed with special regard to the gastrinoma type and the initial operative procedure.

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Purpose: This study was made to evaluate long-term results of an aggressive surgical approach for pancreaticoduodenal neuroendocrine neoplasms (pNENs) in patients with multiple endocrine neoplasia type 1 (MEN1).

Methods: MEN1 patients with either biochemical evidence of functioning or non-functioning pNENs larger than 1 cm in size on imaging underwent duodenopancreatic surgery. Since 1997, patients were followed annually by biochemical testing and imaging studies.

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