Novel biotinylated bile acid amphiphiles: micellar aggregates formation and interaction with hepatocytes.

Amphiphilic bile acids linked through an oligoethylene glycol to a biotin moiety were synthesized and shown to create micellar structures in aqueous environment, interact with avidin and be efficiently incorporated into hepatocyte cells, suggesting their potential as a drug delivery system against liver diseases.

Detection of nodal metastatic disease in patients with non-small cell lung cancer: comparison of positron emission tomography (PET), contrast-enhanced computed tomography (CT), and combined PET-CT.

Of 31 patients with lung cancer, 19 underwent PET-CT and 12 had CT followed by PET. Thoracic lymph nodes were sampled by mediastinoscopy or thoracotomy. Sensitivities, specificities, positive (PPV), and negative predictive values (NPV) were calculated based on histopathology.

Dyspnea secondary to pulmonary hematopoiesis as presenting symptom of myelofibrosis with myeloid metaplasia.

We report a case of a patient with myelofibrosis with myeloid metaplasia (MMM) who presented with progressive dyspnea of unexplained origin. Splenomegaly, blood smear, and bone marrow findings allowed diagnosis of MMM. High-resolution CT chest scan revealed diffuse septal thickening, while echocardiography and electrocardiogram showed no indirect evidence of pulmonary hypertension.