To study the allele frequencies and their polymorphism characteristics of human platelet antigen (HPA) and human leucocyte antigen-I (HLA-I) in Chinese xi'an population, the types of HPA and HLA-I in 375 Chinese xi'an voluntary platelet donors were detected by PCR-SSP and PCR-SSO as well as flow cytometry with magnetic beads, and were analyzed. The results showed that there was no polymorphism in HPA-7-HPA-14, HPA-16 and HPA-17 which only expressed-aa type, the -bb type was only detected in HPA-3 and HPA-15, 9 out of 16 samples for the HPA-5ab phenotype simultaneously expressed HPA-15ab, the other 7 samples expressed HPA-15bb, no HPA-15aa phenotype was observed. Phenotypes detected in this study were HPA-1aa-17aa, HPA-1ab, -2ab, -3ab, -3bb, -4ab, -5ab, -6ab, -15ab and -15bb. Among 375 cases, HLA-A specificity of 16 species was observed, which accounted for 76% (16/21) of detectable phenotype specificity in this locus, moreover, 11 species showed frequency > 1%; HLA-B specificity of 36 species was observed which accounted for 84% (36/43) of detectable phenotype specificity in this locus, moreover 23 species showed frequency > 1%, these species were covered by common specific HLA-I in northern China, 264 species haplotype HLA-A-B were found in 375 cases, the frequency of 30 species was > 1%. It is concluded that the gene frequency distribution of HPA and HLA-I in Chinese Xi'an population is in accordance with population of northern China on the whole, but it has its own characteristics.
Adolescent ; Adult ; Alleles ; Antigens, Human Platelet ; genetics ; Asian Continental Ancestry Group ; genetics ; Blood Donors ; China ; Female ; Genes, MHC Class I ; Humans ; Male ; Middle Aged ; Phenotype ; Young Adult

Carcinoma, Hepatocellular ; diagnosis ; therapy ; Humans ; Liver Neoplasms ; diagnosis ; therapy ; United States

OBJECTIVETo observe influence of JAK2/STAT3 signal pathway mediating curcumin in cartilage cell metabolism of osteoarthritis and mitochondria oxidative stress resistance;also explore the role of JAK2/STAT3 signal pathway and effect of curcumin in this process.

METHODSFifteen male SPF C57BL/6 rats rweighted from 10.05 to 15.00 g with an average of 12.80 g were collected and randomly divided into control group, OA group(modeled as OA by Glasson SS), curcumin with OA group (100 mg/kg curcumin were performed intraperitoneal injection every day based on OA group), 5 rats in each group. Rats were taken off the neck after 4 weeks, morphologic change were observed, specimens changes were observed by histochemical methods;p-JAK2, p-STAT3 and Bax protein expression were detected by Western blot;At the same time, the changes of mitochondria oxidative stress index such as succinate dehydrogenase(SDH) and cytochrome C oxydase(COX) in each group were detected.

RESULTSAfter 4 weeks, cartilage tissue showed translucent shape, no swelling and congestion, the number of cartilage cell increased, nuclei liked oval, chromatin arranged uniform in control group;in curcumin with OA group, joint showed slightly swelling without congestion, the formation of cartilage cell was regular, and number of cell decreased;while in OA group, the surface of joint was roughness with mild damage, cell arrangement was a bit disorder, nuclear was disappeared under vision and dyeing was uneven. Compared with control group, p-JAK2, p-STAT3 protein expression was decreased in OA and curcumin with OA group(<0.05), Bax protein expression was increased (<0.05), SDA and COX protein expression were reduced (<0.05). Compared with OA group, p-JAK2, p-STAT3 protein expression was increased in curcumin with OA, Bax protein expression was decreased (<0.05), SDA and COX protein expression were increased (<0.05), and had statistical differences among three groups.

CONCLUSIONSJAK2/STAT3 signal pathway is closely associated with pathology course of osteoarthritis, curcumin could stimulate JAK2/STAT3 signal pathway and promote mitochondria oxidative stress. It could obviously relieve degeneration of articular cartilage and slow lower progress of OA.

OBJECTIVETo study the value of bedside lung ultrasound in the diagnosis of neonatal pneumonia.

METHODSA total of 49 neonates who were admitted to the Neonatal Intensive Care Unit of Chengdu Women and Children's Central Hospital in March 2017 with respiratory symptoms as the chief complaint were enrolled. Bedside lung ultrasound was performed within 24 hours after admission. A retrospective analysis was performed for their clinical data and lung ultrasound findings. The value of bedside lung ultrasound in the diagnosis of neonatal pneumonia was evaluated.

RESULTSAccording to the gold standard for the diagnosis of neonatal pneumonia, of all 49 neonates, 44 were diagnosed with pneumonia. According to the criteria for the diagnosis of neonatal pneumonia based on lung ultrasound findings, 38 neonates were diagnosed with pneumonia. In the neonates with respiratory symptoms, lung ultrasound had a sensitivity of 86%, a specificity of 100%, a positive predictive value of 100%, and a negative predictive value of 45% in the diagnosis of neonatal pneumonia. Among the 44 cases of neonatal pneumonia diagnosed by the gold standard, the lung ultrasonic images showed B-lines in all 44 neonates (100%), 75% had pleural line abnormalities, 36% had patchy or local hypoechoic area in the lung, 27% had alveolar-interstitial syndrome, and 20% had air bronchogram.

CONCLUSIONSAs a new diagnostic technique in clinical practice, bedside lung ultrasound has a high sensitivity and specificity for the diagnosis of neonatal pneumonia and can thus be used as a tool for the diagnosis of this disease.

Female ; Humans ; Infant ; Infant, Newborn ; Infant, Newborn, Diseases ; diagnosis ; diagnostic imaging ; Lung ; diagnostic imaging ; Male ; Pneumonia ; diagnosis ; diagnostic imaging ; Retrospective Studies ; Ultrasonography ; methods

To explore differentially expressed genes in leukemia gene expression profile and identify main related genes in acute leukemia, gene expression profiles were analyzed in bone marrow/leucopheresis peripheral blood stem cells samples from 9 acute leukemia patients and their sibling donors with the use of oligonucleotide microarrays. 163 reported leukemia-related genes were involved in the study. The oligonucleotide primers were designed, synthesized and spotted on the chemical-material-coated-glass plates in array. The total RNAs were isolated from nine patients' bone marrow or leucopheresis peripheral blood cells and from nine their sibling donors peripheral blood stem cells treated by G-CSF, then collected by CS-3000 cell selection machine, and were reversely transcribed to cDNAs with the incorporations of fluorescent dUTP. The mixed probes were then hybridized to the oligonucleotide microarray. The results showed that in four patient/donor pairs with B-ALL, 5 up-regulated (RIZ, STK-1, T-cell leukemia/lymphoma 1A, Cbp/p300, Op18) and 1 down-regulated genes (hematopoietic proteoglycan core protein) were identified; In five patient/donor pairs with AML-M(4) and AML-M(5), 6 up-regulated (STAT5B, ligand p62 for the Lck SH2, CST3, LTC4S, myeloid leukemia factor 2 and epb72) and 1 down-regulated genes (CCR5) were identified. In conclusion, on the basis of distinguishing study of specific genetic related recipient/sibling donor pairs, screening leukemia-related genes with oligonucleotide microarrays, a set of 13 up-regulated or down-regulated genes among 163 leukemia-related genes has been identified. The result has further confirmed that above genes play critical role in the molecular mechanism of acute leukemia.
Blood Donors ; DNA-Binding Proteins ; genetics ; Gene Expression Profiling ; Glutathione Transferase ; genetics ; Humans ; Leukemia, Myeloid, Acute ; genetics ; Microtubule Proteins ; genetics ; Milk Proteins ; genetics ; Oligonucleotide Array Sequence Analysis ; Peripheral Blood Stem Cell Transplantation ; Phosphoproteins ; genetics ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; genetics ; STAT5 Transcription Factor ; Siblings ; Stathmin ; Trans-Activators ; genetics

Forkhead Transcription Factors ; genetics ; Gene Expression Regulation ; Humans ; Procollagen ; genetics ; Transcription, Genetic

OBJECTIVETo construct a recombinant adenovirus for carry tyrosine hydroxylase (TH) gene and expressing bioactive TH protein in the animal model of Parkinson disease.

METHODSThe TH gene was inserted into the shuttle plasmid, which was transformed into E.coli BJ-5183 for homologous recombination with the adenovirus genome. 293 cells were transfected with the recombinant adenovirus genome to obtain the recombinant virus, and the transcription and expression of TH were determined by RT-PCR and immunofluorescence assay, respectively. The production of L-DOPA in the in vitro reaction system was determined using capillary electrophoresis.

RESULTSWe have successfully constructed the recombinant adenovirus. The TH mRNA and the corresponding protein were detected by RT-PCR and immunofluoresence assay in 293 cells. L-DOPA was also detected in the reaction system.

CONCLUSIONThe adenovirus constructed allows efficient expression of bioactive TH protein in vitro, which provides a basis for future study of gene therapy of Parkinson disease in animal models.

Adenoviridae ; genetics ; metabolism ; Cell Line ; Electrophoresis, Capillary ; Escherichia coli ; genetics ; metabolism ; Genetic Therapy ; Genetic Vectors ; genetics ; Humans ; Levodopa ; analysis ; biosynthesis ; genetics ; Parkinson Disease ; therapy ; Recombinant Proteins ; biosynthesis ; genetics ; Reverse Transcriptase Polymerase Chain Reaction ; Transfection ; Tyrosine 3-Monooxygenase ; biosynthesis ; genetics

Cell Line ; Humans ; Liver ; metabolism ; Membrane Potential, Mitochondrial ; Mitochondria, Liver ; metabolism ; Proliferating Cell Nuclear Antigen ; biosynthesis ; Proteins ; pharmacology

BACKGROUNDBiliary cast syndrome (BCS) was a postoperative complication of orthotopic liver transplantation (OLT), and the reason for BSC was considered to relate with ischemic type biliary lesions. This study aimed to evaluate the relationship between BCS following OLT and the hepatic artery resistance index (HARI), and to observe pathological changes and morphology of biliary casts.

METHODSTotally, 18 patients were diagnosed with BCS by cholangiography following OLT using choledochoscope or endoscopic retrograde cholangiopancreatography. In addition, 36 patients who did not present with BCS in the corresponding period had detectable postoperative HARI on weeks 1, 2, 3 shown by color Doppler flow imaging. The compositions of biliary casts were analyzed by pathological examination and scanning electron microscopy.

RESULTSHARI values of the BCS group were significantly decreased as compared with the non-BCS group on postoperative weeks 2 and 3 (P < 0.05). Odds ratio (OR) analysis of HARI 1, HARI 2, HARI 3 following the operation was >1 (OR = 1.300; 1.223; and 1.889, respectively). The OR of HARI 3 was statistically significant (OR = 1.889; 95% confidence interval = 1.166-7.490; P = 0.024). The compositions of biliary casts were different when bile duct stones were present. Furthermore, vascular epithelial cells were found by pathological examination in biliary casts.

CONCLUSIONSHARI may possibly serve as an independent risk factor and early predictive factor of BCS. Components and formation of biliary casts and bile duct stones are different.

Aged ; Biliary Tract Diseases ; pathology ; Cholangiopancreatography, Endoscopic Retrograde ; methods ; Female ; Hepatic Artery ; surgery ; Humans ; Liver Transplantation ; adverse effects ; Male ; Middle Aged

OBJECTIVETo isolate and chondro-inductive culture of human adipose tissue-derived stromal cells and to study their heterotopic chondrogenesis by loading them on alginate gel.

METHODSLiposuction human adipose tissues were minced and digested with collagenase type I. The obtained stromal cells were primarily cultured in BGJb medium for ten days. Secondary harvested cells were cultured in DMEM-F12 medium supplemented with 10%FBS, 6.25 mg/L insulin, 10 mg/L TGF-beta1, 50 mg/L of freshly prepared L-ascorbate for 14 days. After in vitro assay of chondrogenic phenotypes, the cells at density of 10(10)/L were mixed with 1.2% alginate sodium and 102 mmol/L CaCl(2). The cross-linking cell-alginate gel were injected into four BALB/C athymic mice subcutaneously (1 ml for each mouse). Meanwhile, the auto-controls were set by injecting equal dose of simple alginate gel and pure cells in two opposite buttocks of the same mouse subcutaneously. Two mice were sacrificed at fourth and eighth week postoperatively and all samples were removed, fixed, embedded in paraffin and cut into sections of 5 micro m thick. HE staining, Alcian blue and modified Masson's trichrome staining were employed to observe chondrogenesis histologically.

RESULTSAlcian blue and immunocytochemical staining revealed chondroitin sulfate and collagen II in cell matrix after having been chondro-inductive cultured for 14 days. At intervals of fourth and eighth week, heterotopic chondrogenesis is (cartilage formed) within cell-alginate injected sites were found in all mice but negatively in auto-controls. Histologically the hypertrophic chondrocytes were among cartilage matrix in different staining. All alginate gel and solitory cells absorbed within two to three weeks postoperatively in auto-controls.

CONCLUSIONIt seems that stromal cells derived from human adipose tissue presents a potential for chondrogenic differentiation.

Adipose Tissue ; cytology ; Alginates ; pharmacology ; Animals ; Cell Differentiation ; Cells, Cultured ; Chondrocytes ; cytology ; metabolism ; Chondrogenesis ; Female ; Humans ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; Stem Cell Transplantation ; Stromal Cells ; cytology ; metabolism ; transplantation ; Tissue Engineering