Chuanyi Mark Lu

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Pseudo-Pelger-Huët anomaly (PPHA) has been documented in association with transplant medications and other drugs. This iatrogenic neutrophilic dysplasia is reversible with cessation or adjustment of medications but is frequently confused with myelodysplastic syndrome (MDS) based on the conventional concept that PPHA is a marker for dysplasia. We(More)
Erythrophagocytosis by neutrophils is a rare phenomenon in myeloid malignancies, and its clinicopathologic significance is not fully understood. We report a unique case of erythrophagocytosis by dysplastic neutrophils in chronic myelomonocytic leukemia (CMML) and subsequent transformation to acute myeloid leukemia (AML). Review of multiple marrow samples,(More)
We report 10 cases of donor cell leukemia (DCL). All cases except the case of chronic lymphocytic leukemia had anemia, neutropenia, and/or thrombocytopenia when DCL was diagnosed. Eight cases with sex-mismatched hematopoietic stem cell transplant (HCT) showed donor gonosomal complements, suggesting DCL. Clonal cytogenetic abnormalities were detected in 8(More)
It is known that many chemotherapeutics induce cellular apoptosis over hours to days. During apoptosis, numerous cellular proteases are activated, most canonically the caspases. We speculated that detection of proteolytic fragments released from apoptotic cells into the peripheral blood may serve as a unique indicator of chemotherapy-induced cell death.(More)
Acute myeloid leukemia (AML) occurring concurrently with or after untreated chronic lymphocytic leukemia (CLL) is rare. We report a case of a 59-year-old man who was evaluated for anemia, thrombocytopenia, and leukocytosis with circulating blasts. On the basis of the morphology and immunophenotyping results, a preliminary diagnosis of chronic myelomonocytic(More)
BACKGROUND Epinephrine (EPI) is an important neurotransmitter and hormone. Its role in regulating cardiovascular function at rest and with stress is unclear, however. METHODS AND RESULTS An epinephrine-deficient mouse model was generated in which the epinephrine-synthesizing enzyme phenylethanolamine N-methyltransferase was knocked out (KO). Blood(More)
CONTEXT Plasma cell myeloma and chronic lymphocytic leukemia are both common hematologic malignancies, sharing many epidemiologic features. Concomitant detection of the 2 conditions poses special diagnostic challenges for the pathologist. OBJECTIVE To describe the pathologic findings in cases of concomitant bone marrow involvement by myeloma and CD5(+)(More)
Although commercial tests are approved for detection of HIV-1 plasma viral loads ≥ 20 copies per milliliter (ml), only one specialized research assay has been reported to detect plasma viral loads as low as 1 copy/ml. This manuscript describes a method of concentrating HIV-1 virions from up to 30 ml of plasma, which can be combined with a commercial viral(More)
We present a case of hemophagocytic syndrome in a human immunodeficiency virus-positive man with iron-deficiency anemia that did not respond to highly active antiretroviral therapy. Clinical resolution occurred only after a splenectomy was performed.
Microalbuminuria reflects the progression of nephropathy and cardiovascular disease in diabetic and hypertensive patients. Most commercially available tests currently used to measure microalbuminuria are immunoassays. We developed a microfluidics-based assay using the P200 protein chip (Caliper Life Sciences, Mountain View, CA, and Agilent Technologies,(More)