Objective To study the role of hematopoietic growth factor(HGF)of placenta chorionic villus in fetal hematopoiesis during embryo ontogeny by observation of the appearance time and the content changes with the fetal growth, which was compared with HGF in cord blood. Methods Thirty embryo villus (2 g each) and 30 cord blood (2 mL each) were collected separately from early pregnant stage(6- 8 weeks), middle pregnant stage(16-22 weeks)and late pregnant stage (37-42 weeks). The levels of HGF were detected by enzyme - linked immunosorbent assay. Results HGF were produced on the early pregnant stage and the content of FL-T3,IL-3 increased gradually.There were significantly differences at different stages(P

OBJECTIVETo study the change of tissue oxygen index (TOI) by non-invasive near infrared spectroscopy (NIRS) and to investigate the blood flow variety of fibula flaps after operation.

METHODSThirty-six patients who accepted fibula flap reconstruction were chosen as subjects. Authors measured the TOI of the fibula flaps and the control side every four hours in the first twenty-four hours, and measured these positions with the intermittence of twelve hours from second to eighth day after operation.

RESULTSThirty-five flaps were successful and one failed. The TOI of fibula flaps shortly after operation was significantly lower than that before the operation( P<0.05). In the successful cases the TOI of fibula flaps and the control sides was fluctuated from 50.0% to 72.0%. The TOI of fibula flaps was significantly lower than that of the control sides within 144 hours after operation(P<0.05). After 144 hours the TOI was equal to that of the control side. TOI of the failed case decreased dramatically.

CONCLUSIONSNIRS can reliably indicate the change of TOI in buried flaps and detect ischemia at the early stage. The TOI of the fibula flaps depress at the early stage and returns to normal at 144 hours after operation.

Adolescent ; Adult ; Aged ; Female ; Fibula ; transplantation ; Humans ; Male ; Middle Aged ; Oximetry ; methods ; Oxygen ; blood ; Spectroscopy, Near-Infrared ; methods ; Surgical Flaps ; blood supply ; Young Adult

China ; epidemiology ; Drug Resistance, Bacterial ; Dysentery, Bacillary ; epidemiology ; microbiology ; Humans ; Serotyping ; Shigella ; classification ; drug effects ; isolation & purification

OBJECTIVETo investigate the characteristic findings of an anomalous systemic arterial supply to the lung without the pulmonary artery on spiral CT and discuss its nomenclature.

METHODSFour cases of anomalous systemic arterial supply to the left basal segment of the lung without the pulmonary artery were retrospectively reviewed with analysis of the characteristic CT findings.

RESULTSOn spiral CT scans, the involved left lower lung including the entire left basal segments (n=2), the lateral and posterior basal segment (n=1), and the anterior, medial, and posterior basal segment (n=1) had mild volume loss and areas of ground-glass opacity but with normal bronchial trees. The absence of the entire or part of the basal segments of the normal left lower lobar pulmonary artery, anomalous systemic artery originating from the abdominal aorta, diffuse dilatation of the systemic arterial branches distributed in the basal segments of the left lower lobe, and left lower pulmonary venous drainage into left atrium were found in all these patients.

CONCLUSIONThis anomaly presents with characteristic findings on chest spiral CT, for which the nomenclature of local absent pulmonary artery better shows the characteristics of the disease.

Adult ; Aorta, Abdominal ; abnormalities ; diagnostic imaging ; Female ; Humans ; Male ; Middle Aged ; Pulmonary Artery ; abnormalities ; diagnostic imaging ; Retrospective Studies ; Terminology as Topic ; Tomography, Spiral Computed

OBJECTIVETo investigate the clinical characteristics and the prevalence of mitochondrial gene A3243G mutation in diabetic pedigrees.

METHODSNineteen suspected mitochondrial DNA diabetic family members from three families were recruited. The gene fragment was amplified by PCR, and mutation was detected by direct sequencing.

RESULTSIn three pedigrees, the three probands and their mothers were found carrying the most common nt3243A>G mutation. Most of diabetic patients in these families were deaf and diabetes was developed at early age, characterized by impaired beta cell function and low body mass index (BMI).

CONCLUSIONThe mitochondrial gene A3243G mutation may cause diabetes mellitus and deaf.

Adolescent ; Adult ; Aged ; Base Sequence ; DNA Mutational Analysis ; DNA, Mitochondrial ; genetics ; Deafness ; complications ; genetics ; Diabetes Complications ; genetics ; Diabetes Mellitus ; genetics ; Female ; Humans ; Male ; Middle Aged ; Mutation ; Pedigree ; RNA, Transfer, Leu ; genetics

By referred to a lot of data, some new drug delivery systems(DDSs) including the Sustained and Controlled DDS, the Targeted DDS, the Transdermal DDS, the Bioadhensive DDS, the PowderJect DDS and the Self-Emulsifying DDS and their applications in TCD since 2000, will be summarized and some latest DDSs in the world including drug-eluting stents, gene therapy carrier system, biological chip, biomolecular motor-powered nanodevice and nanotrap will be also introduced in this paper. The objective of this paper is to introduce the new DDSs proceedings of and their applications in the Traditional Chinese Drugs(TCDs) and to provide some references for the pharmaceutics of TCD. For several recent years, the great success have been achieved in studying the new DDS application in the change of preparation of TCD by the investigators at home, but there is a large difference between at home and at board. So it is necessary to make a greater advance. During the modernization of TCD, there is an effective way that the new drug delivery systems(DDSs) will be applied in the change of the preparation of TCD.
Administration, Cutaneous ; Animals ; Delayed-Action Preparations ; Drug Administration Routes ; Drug Carriers ; Drug Delivery Systems ; Drugs, Chinese Herbal ; administration & dosage ; isolation & purification ; Humans ; Nanotechnology ; Plants, Medicinal ; chemistry ; Skin Absorption ; Technology, Pharmaceutical

Adolescent ; Biopsy ; Cystic Adenomatoid Malformation of Lung, Congenital ; diagnosis ; diagnostic imaging ; therapy ; Diagnosis, Differential ; Diagnostic Errors ; adverse effects ; prevention & control ; Humans ; Infant ; Lung Diseases ; diagnosis ; diagnostic imaging ; therapy ; Male ; Middle Lobe Syndrome ; diagnosis ; diagnostic imaging ; surgery ; Tomography, X-Ray Computed ; Treatment Outcome

BACKGROUNDRisk factors that contribute to younger patients with lung cancer are still relatively unknown. The aim of this study was to compare the clinical characteristics, histological types, stages at diagnosis, treatment modalities and survival rates between young and old patients with lung cancer.

METHODSThe study was designed as a retrospective review of all lung cancer patients admitted to the Third Affiliated Hospital of Harbin Medical University from 1998 to 2008. Survival analyses using univariate and multivariate approaches were performed to compare the survival rates between different age groups and to discover potential prognostic factors.

RESULTSThis research included 3320 patients with primary lung cancer, of whom 626 (18.8%) were 45 years old or younger at the time of diagnosis. The percentage of smokers and the male to female ratios between the young and old patient groups were 51.27% vs. 70.6% (P < 0.001) and 1.99 vs. 2.13 (P = 0.4801), respectively. The young patient group had a higher incidence of adenocarcinoma and fewer surgeries. The 1-year, 3-year and 5-year survival rates in the young patient group were generally lower than those of the old patient group, with significant differences (P = 0.0232). The clinical stage of the tumor was a prognostic factor for both non-small cell lung cancer patients (P < 0.0001) and small cell lung cancer patients (P = 0.0002). Symptoms, diagnostic method, histology, smoking, treatment modality and body mass index were shown to have significant relationships with the survival of lung cancer patients (P < 0.05).

CONCLUSIONSPatients with lung cancer who are younger than 45 years old might have a significantly poorer prognosis than that of older patients. Symptoms, diagnosis method, histology, smoking, treatment modality and body mass index can be independent prognostic factors for lung cancer.

Adolescent ; Adult ; Age Factors ; Aged ; Aged, 80 and over ; Female ; Humans ; Lung Neoplasms ; epidemiology ; Male ; Middle Aged ; Retrospective Studies ; Smoking ; Survival Rate ; Young Adult

Objective To understand the risk situation of imported schistosomiasis and its main influencing factors in Shang-hai City from 2005 to 2015. Methods A retrospective survey was performed,and the database was established based on the da-ta collection of imported schistosomiasis,Oncomelania hupensis snail situation and mobile population in Shanghai City from 2005 to 2015. Results From 2005 to 2015,the mobile population in Shanghai City increased by 123.92％,which reached about 9816500,and 54.70％of them were located in the inner suburban districts. The accumulated areas with snails of 7.13 hm2 were found in 16 towns of 4 outer suburbs(excluding Chongming District). A total of 23 cases of imported schistosomiasis were found in Shanghai City,and the number of the imported schistosomiasis cases was on the downward trend(rs=-0.782,P=0.004). From 2005 to 2009,11 out of 13 imported schistosomiasis cases(84.62％)were distributed in the inner suburban dis-tricts where no O. hupensis snails were found at the same time. From 2010 to 2015,9 out of 10 imported schistosomiasis cases (90％)were distributed in the outer suburban districts where O. hupensis snails were found at the same time. Conclusion The number of imported schistosomiasis cases in Shanghai is on the downward trend. However,the threat of imported schistosomiasis to the prevention and control of schistosomiasis in Shanghai City should not be ignored.

OBJECTIVETo investigate the change in dendritic cells (DCs) in children with chronic immune thrombocytopenia (cITP) and the effect of glucocorticoid on DCs in children with cITP.

METHODSFifteen children with cITP and 20 healthy controls were included in the study. Flow cytometry was used to measure the DC subsets count in the 15 children with cITP before and after glucocorticoid treatment as well as the corresponding values in the 20 healthy controls. The DCs derived from peripheral blood monocytes in children with cITP were cultured in vitro and collected, and their immunophenotypes were determined by flow cytometry.

RESULTSBefore glucocorticoid treatment, the children with cITP showed no notable change in the absolute count of myeloid DCs (mDCs) but showed decreased absolute count of plasmacytoid DCs (pDCs) and increased mDC/pDC ratio compared with the healthy controls (P<0.05). After glucocorticoid treatment, the children with cITP demonstrated increased absolute count of pDCs and decreased absolute count of mDCs and mDC/pDC ratio compared with before treatment (P<0.05). Before glucocorticoid treatment, the children with cITP had significantly higher positive rates of HLA-DR, CD80, CD83 and CD86 on peripheral blood DCs than the healthy controls (P<0.01). All the positive rates were significantly decreased after glucocorticoid treatment (P<0.01), so that there was no significant difference from the healthy controls (P>0.05).

CONCLUSIONSDisproportion and functional disturbance of DC subsets is associated with the pathogenesis of cITP in children. Glucocorticoid can strengthen the immunosuppression of DCs in children with cITP, which may contribute to the effectiveness of glucocorticoid as a treatment.

Adolescent ; Child ; Child, Preschool ; Chronic Disease ; Dendritic Cells ; drug effects ; immunology ; Female ; Glucocorticoids ; pharmacology ; Humans ; Immunophenotyping ; Male ; Thrombocytopenia ; drug therapy ; immunology