Objective To discuss the surgical approaches t o treat the 3-and 4-part-fractures of the proximal humerus in young adults.Methods Open reduction,internal fixation with T-shaped steel plate or together with tension band wire,repair of rupture d rotator cuff and joint capsule were conducted.Early rehabilitation wa s performed after the operation.Results8cases were followed up for 1to 4years,with an average of 3years.The functional recovery of the injured shoulder joint had an excellent result of 87.5%.Conclusions Internal fixation with T-shaped steel plate or together with tension band wire to treat the 3-and4-part-fractures of the proximal hu merus in young adults can better the function al recovery of the shoulder joint,as long as used properly,because it is s table and eliminates the need of postoperativ e external fixation so that function al exercises can be done earlier.

The sella MRIand CT of 11 patients with primary pituitary dwarfism (PPD) were evaluated in this study. The results revealed that MRI could find the aplasia of the pituitary and the abnormality of the pituitary stalk and pituitary posterior lobe, while CT only could show the disapperance of the pituitary and not the morphology of the pituitary and its posterior lobe. The CT scanning of the pituitary stalk was less clear than that of MRI. It is suggested that MRI has better tissue contrast and sensitivity, especially to the display of slight structure. Besides, the sella abnormality in MRI provides an important morphological basis for diagnosis and treatment of PPD.

Objective The aim of this study was to evaluate the role of multicriteria optimization (MCO) in planning of intensity-modulated radiotherapy (IMRT).Methods Twenty IMRT patients (ten with prostate and ten with lung cancers) were randomly selected.For these patients,the treatment plans were designed with direct machine parameter optimization (DMPO).Based on these plans,new plans were designed with MCO,while keeping the setting conditions unchanged.Comparison was made between the two plans including the dose distribution,the dose volume histogram,the time of optimization and number of monitor unit (MU),but were play by pairing-t test.Results The plan designed in both optimizations satisfied all clinical requirements.For the same or better target coverage,rectum,bladder and small bowel were better with MCO compared with DMPO,MCO reduced 58％ of the time for optimization by average while MU increased 32％ by average for prostate cancer.For lung cancer,the whole lung,heart and spinal cord were better with MCO compared with DMPO,MCO reduced 59％ of the time for optimization by average while MU increased 11％ by average.Conclusions In comparison with DMPO,MCO reduces the dose of organs at risk,shorten the time of optimization.

The objective of study was to explore the role of vascular endothelial growth factor (VEGF) and its receptor-2 in pathogenesis of acute myeloid leukemia. The acute myeloid leukemia model was established on 20 mice with severe combined immunodeficiency (SCID) transplanted by HL-60 cells. The mice were divided into the normal control and test group randomly. The expression of VEGF was detected by enzyme linked immunosorbent assay (ELISA). The expression of VEGFR-2 mRNA was detected by RT-PCR. The results showed that the establishment of acute myeloid leukemia model was succeeded on all SCID mice by HL-60 cell transplantation. The expressions of VEGF and VEGFR-2 mRNAs could be determined on all mice. As compared with the normal control group, the expressions of VEGF and VEGFR-2 mRNAs in the test group significantly increased, but gradually increased during the course of disease. It is concluded that the abnormal expressions of VEGF and VEGFR-2 exist in mice with acute myeloid leukemia, which may be involved in the pathogenesis of AML.
Animals ; Bone Marrow ; pathology ; HL-60 Cells ; Humans ; Mice ; Mice, SCID ; Neoplasm Transplantation ; Vascular Endothelial Growth Factor A ; metabolism ; Vascular Endothelial Growth Factor Receptor-2 ; metabolism

OBJECTIVE: To construct a vector expressing eukaryotic human interluken-7(hIL-7). METHODS: hIL-7 DNA was identified and cloned (cDNA) from human spleen tissue using reverse transcription polymerase chain reaction (RT-PCR). We incorporated the cDNA into the pMD18-T plasmid. The pMD18-T plasmid was then inserted into a dual expression vector (prokaryotic and eukaryotic) pBK-CMV and called pBK-CMV-hIL-7. We used pBK-CMV-hIL-7 vector to infect E.coli DH5alpha. The expression of the recombinant hIL-7 protein (rhIL-7) by E.coli DH5alpha was analyzed using SDS-PAGE and western blot testing. RESULTS: The genetically engineered E.coli DH5alpha did express rhIL-7 confirmed by western blot. CONCLUSION: The successful construction of genetically engineered eukaryotic gene for hIL-7 was done, This will enable further research into therapeutic uses for hIL-7.

Objective To investigate the screening strategy of group B streptococcus (GBS) in the reproductive tract of women in the third trimester and analyze its impact on pregnancy outcome. Methods A total of 85 461 pregnant women in 35-37 weeks of gestation from Bao′an Maternity and Child Health Hospital, Jinan University from January 2011 to June 2018 were enrolled. They were divided into 3 periods according to different GBS screening strategies, the unscreened period included 31 384 cases (36.72%), 33 267 cases (38.93%) were included in partial screening period, 20 810 cases (24.35%) were included in screening period. All GBS screening positive pregnant women were given intrapartum antibiotic prophylaxis (IAP). The impact on pregnancy outcomes, and the impact of different GBS collection transport and culture methods on the positive rate of GBS screening were analyzed. Results (1) The incidence of neonatal early onset GBS disease (EOGBSD) in unscreened period was 0.03% (11/31 773), in partial screening period was 0.02%(6/33 887), and in screening period, the incidence of neonatal EOGBSD decreased to 0, the difference was statistically significant (χ2=7.86, P=0.02).(2) The incidence of hematogenous infection of GBS in pregnant women was 0.02%(6/33 887) in partial screening period, and there was none in screening period, there was no significant difference (adjusted χ2=3.75, P=0.05). (3) In the screening period, the positive rate of GBS was 14.08%(2 719/19 306), which was significantly higher than the positive rate of GBS in the partial screening period (11.48%, 2 058/17 920; χ2=56.12, P=0.00). (4) Antibiotic sensitivity tests of 4 777 GBS strains showed that the antibiotics with higher resistance rate were tetracycline (81.52%, 3 896/4 777), erythromycin (66.59%, 3 181/4 777), and clindamycin (64.31%, 3 072/4 777). The combination of erythromycin, clindamycin and tetracycline was the most common resistant pattern, accounting for 48.80% (2 331/4 777). No penicillin, ceftriaxone or vancomycin resistant strains was found. Conclusions GBS screening strategy in different regions could combine the local neonatal EOGBSD incidence rate, maternal GBS colonization rate, and the socioeconomic factors to determine whether universal GBS screening or screening for high-risk maternal women. GBS screening positive rate is related to the population, scope of the investigation, the sample collection, delivery and culture methods. The multi-drug resistance rate of GBS is high.[Key words] Streptococcus agalactiae; Streptococcal infections; Neonatal sepsis; Prenatal diagnosis; Pregnancy trimester, third; Pregnancy outcome

OBJECTIVETo evaluate the efficacy of gene delivery to the right lateral lobe of the rat liver via a branch of the bile duct using naked DNA.

METHODSWe evaluated regional gene delivery to the right lateral lobe of the rat liver via a branch of the bile duct, using naked DNA, including pGL3, pCMV beta and Cy3 labeled CMV beta.

RESULTSGene expression was observed in right lateral lobe of both the damaged and the normal rats liver. The gene delivery efficiency was similar in two groups (P > 0.05). Gene expression was found in the right lateral lobe of damaged and normal livers. Fluorescence was observed in the region of the portal triads, and occasionally, in the lobule.

CONCLUSIONRetrograde infusion of naked DNA via the bile duct is an effective way to deliver genes to in both damaged and normal rat liver.

Animals ; Bile Ducts ; metabolism ; DNA ; genetics ; Disease Models, Animal ; Female ; Galactose ; Gene Expression ; Gene Transfer Techniques ; Genes, Reporter ; Genetic Therapy ; methods ; Genetic Vectors ; Liver ; metabolism ; pathology ; Liver Diseases ; genetics ; pathology ; therapy ; Luciferases ; genetics ; metabolism ; Plasmids ; genetics ; Rats ; Rats, Inbred Lew ; beta-Galactosidase ; genetics ; metabolism

OBJECTIVETo study the clinical safety and effect on local recurrence in unresectable small hepatocellular carcinoma treated by radiofrequency ablation (RFA) with and without chemotherapy through a prospective randomized trial.

METHODSThirty-eight unresectable small hepatocellular carcinoma patients with diameter

RESULTSThere was no local recurrence of the tumor in the two groups 1 month after RFA treatment. The 6- and 12-month local recurrence rates were significantly lower in the combined group than that in RFA group alone (P < 0.01). There were no severe complications in the two groups, and nor was there any significant difference in liver function and WBC count.

CONCLUSIONRFA combined with systemic chemotherapy is safe, and it can reduce the local recurrence of unresectable small hepatocellular carcinoma
Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Carcinoma, Hepatocellular ; drug therapy ; therapy ; Catheter Ablation ; Cisplatin ; administration & dosage ; Combined Modality Therapy ; Epirubicin ; administration & dosage ; Female ; Fluorouracil ; administration & dosage ; Follow-Up Studies ; Humans ; Liver Neoplasms ; drug therapy ; therapy ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; Prospective Studies ; Ultrasonography, Interventional