Objective:To retrospectively evaluate whole body ~(18)F-FDG PET/CT in depicting the primary tomors in cervical metastatic adenocarcinoma of unknown primary site.Methods:Seventeen patients were included and underwent whole body PET/CT imaging.The primary tumors and metastases were detected by visual evaluation and measurements of standardized uptake values.The PET/CT impression was verified by histopathology and(or)follow-up.Results:In 17 patienis,primary tumors of 13 patients were confirmed by pathological or clinical follow-up.Among them,8 were in the lung,1 in breast,1 in renal,2 in colon and 1 in cervix.Among the other 4 cases,3 cases were correctly diagnosed as malignant lymphoma finally by PET/CT instead of metastatic adenoearcinoma previously.The sensitivity,specificity and accuracy of PET/CT in were 92.3%,75.0% and 88.2%,identifying primary tumors respectively.After PET/CT examination,10 patients(58.8%)were detected additional metastatic lesions which were missed previously.Conclusion:Whole body ~(18)F-FDG PET/CT may be of relatively higher value in identifying the primary tumor of cervical metastatic adenocarcinoma from unknown primary site.It also may display tumor involvement extent.

MicroRNAs are the endogenous non-coding RNAs that regulate gene expression by mediating gene post-transcriptional silence.Among them,miR-21,miR-17-92,miR-214,miR-26a,miR-221,miR-222and so on mainly suppress the expression of PTEN phosphohydrolase through targeting PTEN mRNA 3'-UTR.PTEN plays an important role in cell proliferation,apoptosis,migration and invasion,and its low expression will induce tumorigenesis.

Objective Retrospectively evaluate low dose computed tomography (CT) as part of a combined 18F-NaF positron emission tomography (18F-NaFPET/CT) examination in lung cancer patients suspected of bone metastases. Methods 118 of 122 lesions with increased uptake of 18F-NaF were assessed. Characteristics of bone metastases on CT images were reviewed by radiologists. Results 27 of 47 metastases presented as sites of increased uptake with corresponding lytic or sclerotic changes on low dose CT. Other 20 show normal or non-specific appearing bone on CT. Most benign lesions (67 of 71,94%)have a benign appearance on low-dose CT. Conclusions Low dose CT images were useful in precisely diagnosing bone metastasis. Negative low dose CT appearance to the abnormal foci on PET may be a reliable sign of metastases.

Objective:To study the expression of Wnt/β-catenin signaling pathway related proteins Wnt1 and β-catenin protein in gingival tissues of the patients with drug-induced gingival overgrowth(DGO) caused by nifedipine.Methods:Wnt1 and β-catenin expression were tested with Western Blot and RT-PCR in gingival tissues of 10 cases of DGO induced by nifedipine,10 cases of high blood pressure with gingival hyperplasia(without use of any medicine) and 10 cases of healthy control.Results:In the gingival tissues of DGO group the levels of Wnt1 and β-catenin protein and mRNA were significantly higher than those of the healthy control group(P ＜ 0.05) and the high blood pressure group (P ＜ 0.05).Conclusion:The levels of Wnt1 and β-catenin are increased in nifedipine induced gingival hyperplasia.The gingival hyperplasia may be caused by the promotion of gingival fibroblast proliferation through Wnt/β-catenin signaling pathway.

Parathyroid scanning was performed with 99mTc-MIBI in 10 patients who had clinical and biochemical findings suggesting primary hyperparathyroidism but had no enlarged parathyroid or palpable thyroid. Seven cases were scanned with both 99mTc-MIBI and 99mTc and three cases with 99mTc-MIBI only but perchlorate was administered during the scan. A series of images were acquired for all cases at different time intervals after 99mTc-MIBI was injected intravenously to allow the dynamic studies. The P/T ratios (counts in parathyroid counts in thyroid)were also designed to see whether the agent had different uptakes and metabolic characteristics in parathyroid and thyroid tissues from 99mTc-MIBI. Surgical finding and histological examination were taken as gold standard against which US. CT and scintigraphy were judged. Finally, 10 adenomas found exactly at the sites predicted by scintigraphy and 2 hyperplastic glands were removed from the 10 patients. Ten of 10 99mTc-MIBI scans, two of 9 US scans and three of 8 CT scans were positive for a parathyroid adenoma, but 2 hyperplastic glands were missed by all of the three methods. It was shown that the suitable time for imaging was at 1h-2h or 30min-1h(if perchlorate was used) after 99mTc-MIBI was given, so as to render both adenoma and background clear. Despite the limited number of cases, the preliminary experience thus suggests that 99mTc-MIBI scintigraphy maybecome the technique of choice for the localization of hyperparathyroidism in stead of 21Tl.

OBJECTIVE: This study intends to preliminarily discuss the expression and the clinical meaning of serum YKL-40 in anaphylactic rhinitis by comparing the different expressions of serum YKL-40 in types of anaphylactic rhinitis, and to preliminarily discuss possible mechanism of having anaphylactic rhinitis involved with serum YKL-40 by associating it with serum IL-4 and IFN-γ in anaphylactic rhinitis. METHOD: Firstly, each select 20 people in our hospital who have anaphylactic rhinitis respectively according to different levels--mild intermittent, mild persistent, moderate-severe interminttent, moderate-severe persistent as the experimental groups, while 20 healthy people as the nomal control. Secondly, test the levels of serum YKL-40, IL-4 and IFN-γ respectively in each group by the ELISA method. Thirdly, statistically analyze and discuss the collected data. RESULT: (1) There was a rise in the expression of serum YKL-40 between the experimental groups and the nomal control group, which contained a statistical significance (P < 0.05). There was a rise in the expression of serum YKL-40 between the mild persistent group and mild intermittent group, which contained a statistical significance (P < 0.05), as well as between the moderate-severe persistent group and the moderate-severe intermittent group (P < 0.05), while there was no significant difference in expression of serum YKL-40 between the mild intermittent group and the moderate-severe intermittent group, as well as between the mild persistent group and the moderate-severe persistent group (P > 0.05). (2) There was a rise in the expression of serum IL-4 between the experimental groups and the nomal control group, which contained a statistical significance (P < 0.05), while there was no significant difference between each experimental group (P > 0.05). (3) There was a reduction in the expression of serum IL-4 be- tween the experimental groups and the nomal control group, which contained a statistical significance (P < 0.05), while there was no significant difference between each experimental group (P > 0.05). (4) The corelation between serum YKL-40 and IL-4 in anaphylactic rhinitis was positive, while the corelation between serum YKL-40 and IFN-γ was negative. CONCLUSION (1) Allergic rhinitis serum YKL-40 expression was increased. The corelation between serum YKL-40 and IL-4 in anaphylactic rhinitis was positive, while the corelation between serum YKL-40 and IFN-γ was negative,suggesting that YKL-40 may regulate the differentiation of Th cells, Promote Th1 to Th2 immune shift, through this mechanism involved in the pathogenesis of allergic rhinitis. (2) Compared with patients with intermittent allergic rhinitis, persistent allergic rhinitis serum YKL-40 expression was increased, suggesting that YKL-40 may promote the continuous attacks of the symptoms of allergic rhinitis.
Adipokines ; blood ; Case-Control Studies ; Chitinase-3-Like Protein 1 ; Humans ; Interferon-gamma ; blood ; Interleukin-4 ; blood ; Lectins ; blood ; Rhinitis, Allergic ; blood

Objective To investigate the relationship between the systemic lupus erythematosus (SLE)and the SOCS-1 gene methylation status of the peripheral blood DNA,to provide the basis for diagnosis and treatment of systemic lupus erythema-tosus.Methods Blood samples of SLE patients (27 cases)and healthy group (19 cases)in January 2015 to April were col-lected and the DNA were extracted.Using polymerase chain reaction combining DNA agarose gel electrophoresis to detect the SOCS-1 gene methylation status.Results In patients with systemic lupus erythematosus SOCS-1 gene complete methyl-ation accounted for 44% (12/27),incomplete methylation accounted for 56% (15/27).In healthy group SOCS-1 gene com-plete methylation accounted for 74% (14/19)and incomplete methylation accounted for 26% (5/19).The rate of complete methylation of SOCS-1 gene of SLE patients was lower than that of healthy group (χ2=3.88,P=0.049).Conclusion SLE patients may have lower SOCS-1 gene methylation status in the peripheral blood DNA,which is worth for further study.

Objective To study the 18F-FDG PET/CT features of tuberculous and malignant diffuse peritoneal lesions and to discuss the diagnostic value of 18F-FDG PET/CT in diagnosing and differentiating the lesions. Methods The 18F-FDG PET/CT features of 72 patients with tuberculous peritonitis,28 primary serous papillary carcinoma of the peritoneum and 135 peritoneal metastases confirmed by clinic and/or histopathology, were retrospectively reviewed. The peritoneal thickening features of tuberculous and malignant peritoneal lesions were observed. The maximal standardized uptake value (SUVmax) of peritoneal lesions and ascites, ascites SUVmax/liver SUVmax (T/NT) were compared between tuberculous peritonitis and cancerous peritonitis. The ROC curve was used to analyze the diagnostic efficiency of T/NT, SUVmax of peritoneal lesions and ascites. Results The typical 18F-FDG PET/CT features of tuberculous peritonitis were uniformity thickening of parietal peritoneum, mesenteric and omental stain like changes, widely and even distribution of the peritoneal 18F-FDG, while the cancerous peritonitis was obvious uneven thickening of parietal peritoneum, mesenteric and omental nodules and pie-shape changes, uneven distribution of the peritoneal 18F-FDG. The degree of 18F-FDG uptake was increased in all peritoneal lesions, and there was no significant difference between the tuberculous group (SUVmax=10.53±5.44) and the cancerous group (SUVmax=11.45±6.78, t=1.017, P>0.05). The 18F-FDG concentration in malignant ascites (SUVmax=1.88±0.65,T/NT=0.73± 0.18) was obvious higher than that of tuberculous ascites (SUVmax=1.67±0.69,T/NT=0.57±0.27, t=2.243 and 5.045,both P<0.05). The area under the ROC curve of T/NT, SUVmax of ascites, SUVmax of peritoneal lesions were 0.707, 0.593, 0.536, respectively. Conclusion The 18F-FDG PET/CT imaging can reflect the morphology and metabolic changes of peritoneal lesions. It is important to combine the SUVmax of ascites in order to improve the efficiency of diagnosing the diffuse peritoneal diseases.

Objective A new breed of licorice seeds(Wuxin No.1) was selected from wild licorice,Glycyrrhiza uralensis.Methods Its germination rate,content of soluble protein,and peroxidase(POD) activities were investigated and compared with the wild licorice seeds(control group).The leaves of Wuxin No.1 were collected and its genetic polymorphism was analyzed by inter-simple sequence repeat technique(ISSR).Results The results suggested that the seed vitality in Wuxin No.1 was higher than that in the control group.The change of soluble protein and POD activity also demonstrated that the seeds in Wuxin No.1 have the higher vigor.ISSR Analysis showed that among 22 random primers used in this experiment,six primers generated different DNA band types,which meant that there was genetic polymorphism in Wuxin No.1.Conclusion All these changes indicate that Wuxin No.1 is a prospective domestication species of licorice and may be cultivated widely in the future.

Objective To investigate the brain glucose metabolism in different stage of mixed-type multiple system atrophy (MSA).Methods Forty-six MSA patients with cerebellar or Parkinsonian symptoms and 18 healthy controls with similar age as patients were included.According to the disease duration,the patients were divided into three groups: group 1 (≤ 12 months,n=14),group 2 (13-24 months,n=13),group 3 (≥ 25 months,n =19).All patients and controls underwent 18F-FDG PET/CT brain imaging.To compare metabolic distributions between different groups,SPM 8 software and two-sample t test were used for image data analysis.When P＜0.005,the result was considered statistically significant.Results At the level of P＜0.005,the hypometabolism in group 1 (all t＞3.49) was identified in the frontal lobe,lateral temporal lobe,insula lobe,anterior cingulate cortex,caudate nucleus and anterior cerebellar hemisphere.The regions of hypometabolism extended to posterolateral putamen and part of posterior cerebellar hemisphere in group 2 (all t＞3.21).In group 3,the whole parts of putamen and cerebellar hemisphere were involved as hypometabolism (all t＞4.08).In addition to the hypometabolism regions,there were also stabled hypermetabolism regions mainly in the parietal lobe,medial temporal lobe and the thalamus in all patient groups (all t＞3.27 in group 1,all t＞3.02 in group 2,all t＞3.30 in group 3).Conclusions Disease duration is closely related to the FDG metabolism in the MSA patients.Frontal lobe,lateral temporal lobe,anterior cingulate cortex and caudate nucleus can be involved at early stage of the disease.Putaminal hypometabolism begins in its posterolateral part.Cerebellar hypometabolism occurs early at its anterior part.Besides,thalamus shows hypermetabolism in the whole duration.18F-FDG metabolic changes of brain can reflect the development of mixed-type MSA.