Medical molecular imaging not only promotes the development of medical imaging, but also pushes research progress of life science and benefits the amalgamation of multi-subjects in medical imaging. This editorial overviews the history and development trends of medical molecular imaging.
Humans ; Molecular Imaging ; trends

Cancer has become the leading cause of mortality in the urban area of China. Whole body diffusion weighted imaging (WB-DWI), also known as virtual positron emission tomography, has gradually become accepted as an image tool in tumor localization, characterization, staging and monitoring response to therapy or tumor recurrence. Our article aimed to summarize the limited initial clinical use of WB-DWI in the referred area, and to analyze the most potential advantage of WB-DWI in therapeutic monitoring and tumor staging. WB-DWI as a highly sensitive, completely non-invasive, well-tolerated and low price technique has a promising furture in tumor assessment. Profound clinical study is necessary for its further application improvement.
China ; Diffusion Magnetic Resonance Imaging ; methods ; Humans ; Neoplasm Staging ; Neoplasms ; diagnosis ; pathology ; Whole Body Imaging ; methods

Carcinoma, Squamous Cell ; pathology ; therapy ; Female ; Humans ; Neoplasm Invasiveness ; Uterine Cervical Neoplasms ; pathology ; therapy

Adenocarcinoma ; metabolism ; pathology ; Chromogranin A ; metabolism ; Colonic Neoplasms ; metabolism ; pathology ; Humans ; Immunohistochemistry ; methods ; Proliferating Cell Nuclear Antigen ; metabolism ; Staining and Labeling ; methods ; Vimentin ; metabolism

Overexpression of survivin may partly protect the NIT-1 cells(mouse insulin-secreting cells) from cytokine-induced apoptosis.In addition, NIT-1 cells transfected with survivin had an slightly improved response of insulin secretion to glucose stimulation.

Objective Transpherical technique of CT scanner of beekley spot quality assurance (BBQA) and its effect in CT simulator QA.Methods Vertical column,BB,Jig,Philips PQS-Falcon CT, ACQSIM workstation and the laser system were used.Scanning BB was used in sending image to the AC- QSIM workstation.In this system,after describing the BB,isocenter can be established.Then,tile couch with the lasers were moved to the programmed position.Checking was needed.Results The center of the laser should just be found on the BB.Otherwise the laser system should be regulated again.Conclusions Beekley spot quality assurance,being the very important center of any QA program,influences the accuracy of quality of the treatment.

Objective To study the clinicopathologieal features and expression of cyclin D1 and p53 in epithelial ovarian tumors,and to investigate the correlation between pathogenesis of ovarian cancer and epithelial borderline tumors.Methods Fifty four cases of ovarian borderline tumors and 45 cases of ovarian carcinomas from the People's Hospital,Peking University were reviewed retrospectively.The clinical data and pathological findings were analyzed.Immunohistochemical study of cyclin D1 and p53 was performed in all 99 cases.Results(1)In borderline tumors,the age of patients ranged from 14-82 (mean age=42.5)years.International Federation of Gynecology and Obstetrics(FIGO)stage of borderline tumors was stage Ⅰ in 48 cases,stage Ⅱ in 3 cases,and stage Ⅲ in 3 cases.In ovarian carcinomas,the age of patients ranged from 26-80(mean age=53.5)years.FIGO stage of carcinoma was stage Ⅰ in 6 cases, stage Ⅱ in 8 cases,stage Ⅲ in 26 cases,and stage Ⅳ in 5 cases.In follow-up of 54 cases with borderline tumors the 5-year survival rate was 98% and of 45 cases with carcinomas a 5-year survival rate of 51% was noted.(2)In 54 cases of borderline tumors,mucinous types accounted for 56%(30/54)and serous types accounted for 30%(16/54).There were 5 cases with micropapillary pattern,3 cases with peritoneal implants,3 cases with lymph node involvement,6 cases with microinvasion,one case with intraepithelial carcinoma,and one case with mural nodules.In 45 cases of carcinomas,serous carcinoma was the most (49%,22/45).The remainder included 3 cases of mucinous types,8 cases of endometrioid types,6 cases of transitional cell types,3 cases of mixed phenotype and 3 cases of undifferentiated types.(3) Overexpression of cyclin D1 and p53 was observed in 31%(14/45)and 56%(25/45)of ovarian carcinomas, respectively.There was a significant association between p53 overexpression and tumor grade.In the borderline tumor group,69%(37/54)had overexpression of cyelin D1 and 6%(3/54)had overexpression of p53.There were significant differences in expression of cyclin D1 and p53 between conventional serous borderline tumors and high-grade serous carcinomas(cyclin D1:91% vs 26%;p53:0 vs 58%).However, micropapillary serous borderline tumors and low-grade serous carcinomas showed remarkably similar expression of cyelin D1 and p53.Conclusions Epithelial ovarian borderline tumors are distinct from ovarian cancer in clinical progress and prognosis,and histological types.Overexpression of cyclin D1 is common in ovarian borderline tumors and low grade carcinomas.And overexpression of p53 is more common in high grade ovarian carcinomas.Conventional serous borderline tumors are distinct from high-grade serous carcinomas in pathogenesis.Micropapillary serous borderline ovarian tumors may be closely related to low grade serous carcinomas.

OBJECTIVETo observe the effect of Jinhuang Fuzheng powder on cytokines of immunosuppressive mice by using protein antibody micro-array.

METHODThe immunosuppressive mice model was established by subcutaneously injecting cyclophosphamide. Rats were orally administered with low, middle and high dose of Huangjin Fuzheng powder for 10 days, and fasted for 12 hours after the final administration. 1 mL blood was drawn from caudal veins and isolated hearts of rats of each group. A quantitative test was conducted for cytokines with cytokine antibody array.

RESULTCompared with the control group, IFN-gamma and RANTES of the CTX group decreased significantly (P<0.05). After the administration, IFN-gamma of low, middle and high-dose groups, and RANTES of the high-dose group increased significantly (P<0.05). Compared with the control group, IL-5, IL-6, IL-9, IL-13 and MCP-1 of the CTX group increased remarkably (P<0.01, P<0.05). After the administration, IL-5, IL-6, IL-9, IL-13 and MCP-1 of low, middle and high-dose groups decreased to varying degrees. GM-CSF, IL-1alpha, IL-1beta, IL-2, IL-3, IL-4, IL-10, IL-12, IL-17, M-CSF, TNF-alpha, KC and VEGF of the 13 types of cytokines showed no significant change.

CONCLUSIONJinhuang Fuzheng powder shows effect on 20 types of cytokines of immunosuppressive mice to varying degrees, which may be related to the regulatory immunosuppression of Th1/Th2 subgroup in mice.

Animals ; Antibodies ; immunology ; Cytokines ; genetics ; immunology ; Drugs, Chinese Herbal ; administration & dosage ; Female ; Humans ; Immunocompromised Host ; drug effects ; genetics ; immunology ; Immunosuppressive Agents ; administration & dosage ; Inflammation ; drug therapy ; genetics ; immunology ; Male ; Mice ; Protein Array Analysis

Humans ; Perineum ; Rhabdomyosarcoma/diagnosis*

OBJECTIVETo evaluate the feasibility and clinical value of whole body diffusion weighted magnetic resonance imaging (WB-DWI) in detection of bone metastases.

METHODSTotally 38 patients with malignant tumors and suspected bone metastases were enrolled. All patients underwent WB-DWI and bone scintigraphy within 2 weeks. The skeletal system was divided into 13 regions: skull, sternum, clavicle, cervical spine, thoracic spine, lumbar spine, sacrum, ribs, pelvic bone, scapula, humerus, femur, and tibia/fibula. Bone metastases were assessed for both modalities in a separate consensus reading and apparent diffusion coefficient (ADC) values were calculated.

RESULTSWB-DWI identified 214 pathological lesions in 20 patients, while bone scintigraphy demonstrated 197 lesions in 20 patients. Concordance between WB-DWI and bone scintigraphy occurred in 34 of 38 patients. There was no statistical difference between these two modalities (P = 0.488). Compared with bone scintigraphy, the regions missed by WB-DWI were mainly located in skull, thoracic spine, humerus, and tibia/fibula. WB-DWI was more sensitive in the detection of metastases to the cervical spine, lumbar spine, sacrum, pelvis, ribs and femur. No statistical significance was found among the ADC values of bone metastases in different skeletal areas, and the mean ADC value was (0.75 +/- 0.10) x 10(-3) mm2/s. Furthermore, WB-DWI revealed more metastases to the lymph lodes and extraskeletal organs. Conclusion WB-DWI has high accordance with skeletal scintigraphy in detecting bone metastases, and the two modalities are complementary to each other.

Adult ; Aged ; Aged, 80 and over ; Bone Neoplasms ; diagnosis ; diagnostic imaging ; secondary ; Diffusion Magnetic Resonance Imaging ; methods ; Feasibility Studies ; Female ; Humans ; Lung Neoplasms ; pathology ; Male ; Middle Aged ; Radionuclide Imaging ; Stomach Neoplasms ; pathology ; Whole Body Imaging ; methods ; Young Adult