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Biomedical subjects

D Fisher

Publications and source records attributed to D Fisher.

At least 253 records · Page 14Linked to original sources
PubMedDate not supplied

Postpartum ovarian vein thrombophlebitis: sonographic diagnosis.

BACKGROUND: We describe our experience with sonographic diagnosis of ovarian vein thrombosis, an uncommon but dangerous postpartum complication. METHODS: We retrospectively reviewed the medical records of seven patients in our institution who developed postpartum ovarian vein thrombophlebitis within the past 5 years. RESULTS: In all cases the diagnosis was made by ultrasound, which showed tubular hypoechoic masses lateral to the great abdominal vessels. The postpartum ovarian vein thrombophlebitis was on the right side in six cases and on the left side in one. In five cases, it protruded into the inferior vena cava. The first three cases were referred to computed tomography after the sonographic diagnosis. In the last four cases, the diagnosis relied solely on sonography and no further evaluation was necessary. CONCLUSION: Sonographic examination can be diagnostic for ovarian vein thrombosis if performed very carefully in symptomatic postpartum patients.

Adult↗
PubMedDate not supplied

Primary carcinoid tumor of the pancreas.

Serotonin-secreting (carcinoid) tumors of the pancreas are very rare. There are only 13 cases reported since 1963. Liver metastases have not previously been described. We present two patients with primary carcinoid tumor of the pancreas, which metastasized to the liver. These patients differ in their clinical and radiological appearance. Carcinoid tumor should be considered in the differential diagnosis of a pancreatic mass in a patient with carcinoid syndrome, but lack of this syndrome does not exclude the diagnosis.

Aged↗
PubMedDate not supplied

Oxidative stress and inflammation in brain aging: nutritional considerations.

Aging can be defined as the condition where stressors are not counteracted by protective functions, leading to a dysregulation in development. These changes can be translated into decrements in neuronal functioning accompanied by behavioral declines, such as decreases in motor and cognitive performance, in both humans and animals. When coupled with genetic alterations, the ultimate expression of these changes is seen in diseases such as Alzheimer disease (AD). This association will be discussed in the last section of this chapter. In this review we will describe motor and cognitive deficits in behavior due to aging, and show how these deficits are related to increased vulnerability to oxidative stress, inflammation or signaling. Importantly, using muscarinic receptors as examples, we will also try to show that the sensitivity to these insults may be differentially expressed among neurotransmitter receptor subtypes.

Animals↗