Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0079731 (B-cell lymphoma)
 16,671 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The aim of this work was to develop a pharmacokinetic model for the analysis of the pharmacokinetics of (111)Inlabeled monoclonal antibodies (mAbs) in B-cell lymphoma patients and to evaluate the model's ability to predict a subsequent radioimmunotherapy by (90)Y-labeled mAbs. Data from quantified scintillation camera images and blood samples were used to fit a compartment model. The modeling included two steps: 1) a two-compartment model describing the total-body kinetics for the estimation of a set of global parameters and 2) a multicompartment model for estimating the model parameters for organs. In both steps, a correction for radiochemical impurity in the form of (111)In-DTPA (diethylene triamine pentaacetic acid) was included. The model was found to describe all patient data with good accuracy. From the model, the time-activity data of all organs could be separated into extravascular and vascular components, where the estimates of the regional vascular volumes were found to be in close agreement with literature data. A significant improvement of the model fit to total-body activity data was obtained by correcting for radiochemical impurity. The therapy kinetics area under the curves (AUCs) predicted from pretherapy data were in good agreement with the measured therapy AUCs. The good correlation between the model estimates and measured data, the accurate prediction of the therapy kinetics, and the good estimates of regional vascular volumes demonstrates the reliability of the model. These findings also indicate that the model can be useful for individual optimization of the amount of activity to be administered with respect to patient dosimetry.
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PMID:Development and evaluation of a pharmacokinetic model for prediction of radioimmunotherapy based on pretherapy data. 1924 53

A-46-year-old woman admitted to our hospital because of numbness of bilateral lower limbs and urinary incontinence. The initial neurological examination showed sensory impairment below S1 level with urinary incontinence, indicating epicornus syndrome. Spinal MR imaging demonstrated unremarkable on conventional and enhanced images with Gd-DTPA. Cerebrospinal fluid examination revealed slightly elevated protein level without pleocytosis. Thereafter, subacute ascending myelopathy including flaccid paraparesis and urinary retention, developed. Because the patient had low grade fever, fatigue, weight loss and elevated serum soluble IL-2 receptor and LDH titers, we investigated her for lymphoma. Although lymphadenopathy or mass lesions were not found on whole-body CT scan, bone marrow biopsy showed the presence of inravascular large B-cell lymphoma (IVL). Thus the patient's progressive myelopathy was probably caused by IVL invasion. Ten days after the initiation of chemotherapy, her neurological symptoms transiently improved; however, her paraparesis and urinary incontinence gradually worsened thereafter, despite of treatment. IVL often presents with neurological manifestations, including myelopathy. There have been a few reports of IVL presenting with lower lumbar spinal cord and conus medullaris. It should be noted that IVL can cause unidentified progressive ascending myelopathy without positive MRI findings.
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PMID:[A case of intravascular malignant lymphomatosis presenting with epicornus syndrome and diagnosed by bone marrow biopsy]. 2029 32

Primary malignant lymphoma of the uterine cervix is a rare disease, and the therapeutic strategy has not been clearly established. A 45-year old woman presented with vaginal bleeding and hypermenorrhea in January 2012. Physical examination revealed a mass in the pelvic cavity approximately the size of a neonate's head. Pelvic magnetic resonance imaging(MRI) showed a solid mass 11 cm in size in the uterine cervix with homogeneous low intensity on T1-weighted images, iso-high intensity on T2-weighted images, and heterogeneous iso-high intensity on gadolinium-diethylenetriaminepentaacetate(Gd- DTPA)-enhanced images. Multiple lymphadenopathy were also detected in the pelvis. The Papanicolaou smear indicated class 5 cervical cytology, and a subsequent histological examination by a punch biopsy of the cervix showed diffuse infiltration of medium- to large-sized mononuclear cells that stained positive for CD20 and CD79a and negative for CD3, CD5, and EBER. Bone marrow biopsy revealed no abnormality. Positron emission tomography-computed tomography(PET-CT)showed strong fluorodeoxyglucose(FDG)accumulation in the uterine cervix mass, and in the pelvic and right inguinal lymphadenopathy. The patient was diagnosed with diffuse large B-cell lymphoma of the uterine cervix, Ann Arbor stage II AE. She was successfully treated with 8 courses of rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone(R-CHOP) chemotherapy, and maintains a complete remission.
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PMID:[Primary diffuse large B-cell lymphoma of the uterine cervix successfully treated with rituximabplus cyclophosphamide, doxorubicin, vincristine, and prednisone chemotherapy-a case report]. 2433 77


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