The present study visualized the knowledge map of research hotspots and changes of keywords by importing literatures from The American Journal of Clinical Nutrition (2000 ～ 2011) into CiteSpace.Analysis of the research hotspots (keywords),evolution of clinical nutrition,and front-line research based on tf-idf algorithm was then performed.

Objective To investigate the bacteria identification and clinical features of brucellosis in Qingdao City.Methods A retrospective analysis was performed on the clinical data,including general situation,clinical symptom,bacterial culture and laboratory findings,etc of 34 patients with brucellosis in the Affiliated Hospital of Qingdao University from April 2010 to November 2014.Results Among the 34 patients,24 were male and 10 were female,aged from 12 to 71.The main clinical manifestations included fever,diaphoresis and arthralgia,and merged multiple organ symptoms.After cultured for 3 to 5 days,16 blood samples were positive,6 tissue samples were positive,with 2 positive in both samples.Thirty-four cases were identified Brucella species.Besides liver parameters abnormality and anemia,elevation of C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) were the most common laboratory findings.Patients got better prognosis after antibiotic combination therapy.Conclusions With increasing numbers of brucellosis cases in non-endemic areas,we should pay attention to bacteriological culture and other confirmation tests.On the other hand,techniques such as morphology and growth characteristics of Brucella should be mastered to prevent laboratory infection.

Objective To describe the consistency of three diagnostic criteria for metabolic syndrome(MS) proposed by ATP lI[ in 2005,CDS in 2004 and IDF in 2005 in Chinese.Methods With cluster sampling method,5 494 subjects was selected and studied, and the prevalence of MS was calculated according to three definitions with software SPSS 13.0.Results The crude prevalence of MS in Tongzhou area was 15.8% by IDF(2005) definition,8.5% by CDS(2004) definition and 15.8% by NCEP-ATPⅢ definition,women had higher prevalence than men(P

Objective To compare enhancement features of primary hepatocellular carcinoma(PHCC)and recurrent hepatocellular carcinoma(RHCC) on.contrast-enhanced ultrasonography(CEUS). Methods CEUS was performed in 56 patients with 70 RHCC and 83 patients with 93 PHCC. The enhancement features of these two groups of hepatocellular carcinoma were compared. The time used for the enhancement material to arrive the lesion(Ta ), that used for the lesion to become isoechoic(T1 ) and hypoechoic relative to the surrounding hepatic parenchyma(To) were analyzed. The echogenicity change between the lesion and the parenchyma was observed during arterial phase,portal phase and delayed phase. Results The time used for the lesion to become hypoechogenicity of RHCC and PHCC was (104.0 ± 51.8)s, (85.5 ± 43.0)srespectively,there was significant difference between the two groups( P = 0.010). There were 24 (34.3 % )cases of RHCC and 16 ( 17.2% ) cases of PHCC becoming isoechoic during portal phase,the former rate was significantly higher than the later one( P = 0. 012). Conclusions There is significant difference between PHCC and RHCC in the performance of CEUS,this is useful for the early diagnosis of RHCC.

Objective To establish a flow cytometric measurement of detecting minimal residual disease(MRD) according to the leukemia-associated immunophenotypes in children with acute lymphoblastic leukemia(ALL) and to explore the significance of MRD detection in ALL children for a individualized treatment. Methods A variety of four-color fluorescent antibody combinations were used to investigate the children's normal bone marrow. The normal bone marrow pattern at two-parameter plots was established to identify the residual tumor cells, seventy-five bone marrow samples from newly diagnosed ALL children were analyzed with four-color cytometry to determined the optimal combinations which can clearly distinguish the tumor cells from normal cells. The bone marrow samples were monitored with the combination panel in 60 patients at the end of induction therapy and follow-up treatment. Cytomorphology test, PCR amplification of 29 fusion genes as well as IgG and TCR gene rearrangements were performed simultaneously. Results Sixty-nine cases (92.0%) could be identified for effective antibody combinations to monitor MRD by four-color cytometry. Fusion genes or IgG and T cell receptor (TCR) gene rearrangements can be detected in 21 cases (28.0%) to monitor MRD by PCR. No MRD can be detected in 25 bone marrow samples at the end of induction therapy and follow-up treatment. Four-color cytometry could detect as low as 0.021%-4.130% residual leukemia cells. Conclusion MRD can be monitored by flow cytometry which is faster than PCR, and the sensitivity is superior to morphology method.

OBJECTIVETo observe the influence of different concentrations of bisphenol A (BPA) on glucose metabolism and lactate dehydrogenase (LDH) expression in rat Sertoli cells in vitro and investigate the mechanisms of BPA inducing male infertility.

METHODSUsing two-step enzyme digestion, we isolated Sertoli cells from male Wistar rats and constructed a primary Sertoli cell system, followed by immunohistochemical FasL staining. We randomly divided the Sertoli cells into a control group to be cultured in the serum-free minimal essential medium (MEM) plus dimethyl sulfoxide (DMSO) and three experimental groups to be treated with 100 nmol/L, 10 μmol/L, and 1 mmol/L BPA, respectively, in the MEM plus DMSO. After 48 hours of treatment, we measured the proliferation of the cells by CCK-8 assay, determined the concentrations of metabolites by NMR spectroscopy, and detected the expression of LDH in the Sertoli cells by RT-PCR and Western blot.

RESULTSThe purity of the isolated Sertoli cells was (96.05 ± 1.28)% (n = 10). Compared with the control group, the 100 nmol/L, 10 μmol/L, and 1 mmol/L BPA groups showed no remarkable changes in the proliferation of Sertoli cells ([98 ± 8]%, [96 ± 3]%, and [95 ± 3]%, P >0.05), but the 10 μmol/L and 1 mmol/L of BPA groups exhibited significantly decreased concentrations of intracellular glucose ([3.89 ± 0.07] vs [3.36 ± 0.24] and [3.04 ± 0.21] pmol/cell, P <0.05) and lactate ([0.43 ± 0.06] vs [0.29 ± 0.05] and [0.20 ± 0.03] pmol/cell, P <0.05). The expression of LDH mRNA was decreased with the increased concentration of BPA, while that of LDH protein reduced only in the 1 mmol/L BPA group (P <0.05).

CONCLUSIONHigh-concentration BPA decreases the expression of LDH and alters glucose metabolism in Sertoli cells, and therefore may reduce the provision of lactate for germ cells and impair spermatogenesis.

Animals ; Benzhydryl Compounds ; administration & dosage ; pharmacology ; Cell Proliferation ; drug effects ; Cells, Cultured ; Culture Media, Serum-Free ; Dimethyl Sulfoxide ; pharmacology ; Glucose ; metabolism ; In Vitro Techniques ; Infertility, Male ; chemically induced ; L-Lactate Dehydrogenase ; metabolism ; Male ; Phenols ; administration & dosage ; pharmacology ; RNA, Messenger ; metabolism ; Random Allocation ; Rats ; Rats, Wistar ; Sertoli Cells ; drug effects ; metabolism ; Spermatogenesis ; drug effects

Objective To investigate the relationship between ultrasound features and pathological types of primary hepatic lymphoma (PHL).Methods Ultrasound and pathological features in 26 cases of PHL were analyzed retrospectively.Results The most common presentation of PHL was a solitary lesion,which occurred in about 57.7％ (15/26) of cases,followed by multiple lesions in about 26.9％ (7/26) of patients,and least commonly as diffuse infiltration patterns in about 15.4％ (4/26) cases.The first two types were similar and usually demonstrated as hypoechoic lesions to the surrounding normal liver parenchyma in 86.4％ (19/22) of cases on ultrasound.All the cases were B-cell non-Hodgkin lymphoma proven by histological and immunohistochemical examinations.The diffuse pattern demonstrated diffuse hepatomegaly without nodular,which were T-cell non-Hodgkin lymphoma proven by histological and immunohistochemical examinations.Conclusions PHL could be divided into single,multiple and diffuse types on ultrasound.The single and multiple types mainly present as hypoechoic lesions and the diffuse type shows hepatomegaly on ultrasound,which are closely related to histology and T or B-cell phenotype on immunohistochemical examination.

Objective To assess the value of contrast-enhanced ultrasound (CEUS) in the differential diagnosis of focal liver lesions before microwave ablation. Methods One hundred and seven patients with 128 focal liver lesions underwent CEUS and color Doppler flow imaging (CDFI) before microwave ablation therapy. The diagnostic performance of CEUS and CDFI was compared with pathologic findings through biopsy. Results The sensitivity, specificity, positive and negative predictive value, accuracy of CEUS for diagnosing liver lesions was 98.35% (119/121), 100% (7/7), 100% (119/119), 77.78% (7/9) and 98.44% (126/128), respectively, higher than those of CDFI (P＜0.001). According to CEUS, 119 malignant lesions were treated with timely microwave ablation, while unnecessary microwave ablation was excluded for 7 benign lesions. Conclusion CEUS is useful in the characterization of focal liver tumors before microwave ablation, and is helpful to reduce the misdiagnosis and mistreatment of the patients.

Objective To investigate whether epithelial-mesenchymal transition (EMT)is involved in the anti-invasion and anti-metastasis effects of curcumin on MDA-MB-2 3 1 breast cancer cell line and further analyze the underlying mechanisms.Methods MTT method was used to detect the anti-proliferative effect of curcumin on MDA-MB-2 3 1 cell line induced by lipopolysaccharide (LPS).The morphological changes were determined by optical and transmission electron microscopy,respectively.The expressions of Vimentin,E-cadherin,NF-κB and Snail were analyzed using RT-PCR and Western blotting.Results Curcumin could inhibit the occurrence of LPS-induced EMT of MDA-MB-2 3 1 breast cancer cell line, decrease the expression of LPS-induced EMT marker Vimentin and increase the expression of E-cadherin, resulting in the inhibition of in vitro cell motility and invasiveness.These actions were mediated by inactivating NF-κB-Snail signaling pathways.Conclusion Our data provide a new perspective of the anti-invasion mechanism of curcumin,indicating that the effect is in part due to its ability to inhibit the EMT process.

Adult ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Lead ; blood ; Lead Poisoning ; blood ; epidemiology ; Middle Aged