Objective To study the expression of metabolism related genes in peripheral blood mononuclear cells in patients of non alcoholic fatty liver diseases (NAFLD)with cholelithiasis.Methods Patients who had BMI ≥ 27 were divided into obese ( n = 10),the NAFLD ( n = 7) and NAFLD with cholelithiasis (n= 16) groups.The subjects who had BM1<25 (n = 10) and cholelithiasis (n = 16) were served as controls.The expression of peroxisome proliferator-activated receptors (PPAR)α,sterol regulatory element-binding protein(SREBP)-lc and Leptin Rb in peripheral blood mononuclear cells were measured.Results The expressions of PPARα,SREBP-lc and Leptin Rb in peripheral blood mononuclear cells were different in five groups.The significant difference was found in expression of leptin Rb between NAFLD with cholelithiasis group and the obese group,NAFLD with cholelithiasis group and the cholelithiasis group,NAFLD with cholelithiasis group and NAFLD group,the obese group and controls (P values= 0.037,0.050,0.044and 0.038,respectively).The leptin Rb mRNA expression in NAFLD with choletethiasis group was the lowest.Conclusions The low expression of leptin Rb mRNA was found in NAFLD patients with cholelithiasis.Cholelithiasis may increase the extent of insulin resistance and cause NAFLD progression.

BACKGROUNDPrimary systemic light chain amyloidosis (AL) is a rare plasma cell disease, our purpose was to analyze the immunophenotypic characteristics of the plasma cells in bone marrow in AL patients, and explore whether the detection of abnormal plasma cell clones in bone marrow by flow cytometry (FCM) could be used as an important indicator of AL diagnosis.

METHODSFresh bone marrow samples were collected from 51 AL, 21 multiple myeloma (MM), and 5 Waldenström's macroglobulinemia (WM) patients. The immunophenotype of bone marrow cells were analyzed and compared by FCM using a panel of antibodies including CD45, CD38, CD138, CD117, CD56, and CD19.

RESULTSIn AL, light chain restriction could be identified in 31 cases (60.9%), in which the λ light chain restriction was found in 24 cases (77.4%). In MM, κ light chain restriction was found in 13 cases (61.9%), and λ light chain restriction in eight cases. CD45 on abnormal plasma cells was negative to weakly positive in both AL and MM, but was positive to strongly positive in WM. In the bone marrow plasma cells of the 51 AL, 78.4% were CD56+, 68.6% were CD117+, and 88.2% were CD19-. While in the 21 MM cases, 66.7% were CD56+, 38.1% were CD117+, and 90.4% were CD19-. The plasmacytoid lymphocytes in the five WM patients were CD19+ and CD56-, CD117-.

CONCLUSIONDetection of abnormal plasma cell clones in bone marrow by FCM is valuable for the diagnosis of AL.

Adult ; Aged ; Aged, 80 and over ; Amyloidosis ; immunology ; metabolism ; CD56 Antigen ; metabolism ; Female ; Flow Cytometry ; Humans ; Immunoglobulin Light-chain Amyloidosis ; Immunoglobulin lambda-Chains ; metabolism ; Immunophenotyping ; Leukocyte Common Antigens ; metabolism ; Male ; Middle Aged ; Multiple Myeloma ; immunology ; metabolism ; Proto-Oncogene Proteins c-kit ; metabolism ; Waldenstrom Macroglobulinemia ; immunology ; metabolism