Purpose Placenta accreta is a rare but severe pregnancy complications, and imaging diagnosis is always difficult. This paper aims to analyze the MRI manifestations of placenta accreta, and explore its misdiagnosis reasons. Materials and Methods A retrospective study was carried out on the findings and classification of MRI plain scan and diffusion weighted imaging (DWI) scan of 18 patients with placenta accreta confirmed surgically and pathologically. Results The prenatal MRI scan reported 15 patients of placenta accreta correctly (83.33%), and missed 3 (16.67%) among which 2 were with placenta accreta and the other 1 with placenta increta. The MRI of placenta accreta presented rather thin muscular layer, discontinuous junctional zone, and some unclear boundary of placenta and uterine wall; the signal of the placenta was heterogeneous, and we could see enlarged vessels of extremely low signal on T2 HASTE and high signal on TruFISP sequences, and low signal of thick intraplacental band; moreover, hematoma with high intensity on T1WI and low intensity on T2WI could be seen. DWI demonstrated uneven intensity and dark thicker intraplacenta bands in 2 cases. Conclusion As an important clinical auxiliary tool in diagnosing placenta increta, MRI has high accuracy in the diagnosis of placenta increta and placenta percreta; however, it has rather low accuracy in placenta accreta.

Objective To understand the difference of serological characteristic between alloantibodies,'simple'Rhspecific autoantibodies and autoantibodies mimicking alloantibodies by studies of a patient who produces alloantibodies and autoantibodies that to distinguish Serologically them in order to more appropriate RBC component transfusion administration would be performed for patients.Methods Several serological methods were performed to the patient's serum samples for identification of antibodies by using two antibody screening cell reagents from different manufacturers.Using adsorption of the patient's Rh antibodies in the presence of LISS with the antibody was similar to that of the antigen negative cell from a donor who had a ccDEE Rh type and O type,and to detect antibodies in the absorbed serum and the eluting solution.Results The patient had a ccDEE Rh type with a positive direct antiglobulin test (DAT).Serum antibodies were identified as IgM anti-C,anti-e and IgG anti-e;the possibility of anti-Ce antibody is not excluded.After absorption,serum antibodies were identified as IgM anti-C,anti-e and IgG anti-e;anti-Ce antibody is not excluded.The antibody in patient's RBC elution was identified as IgG anti-e antibody.Conclusion Alloantibody and mimicking alloantibody can be distinguished by comprehensive analysis of patient's Rh phenotype,DAT result and antibody specificity in the serum and absorbed serum and elution of RBC.The low affinity antibody can be better absorbed by adding low ionic liquid (LISS).

Acellular Dermis ; Female ; Humans ; Male ; Oropharyngeal Neoplasms ; surgery ; Reconstructive Surgical Procedures ; Surgical Flaps ; Wound Healing

OBJECTIVE: To set up a natural degeneration model of chondrocytes derived from endplate of intervertebral discs of rats in order to offer an appropriate carrier for the study on mechanism of intervertebral disc degeneration. METHODS: The method of enzyme digestion combined with natural subculture was used to set up the in vitro natural degeneration model of chondrocytes derived from the endplate of intervertebral disc of rats. The morphological appearances and microstructures of the chondrocytes of different generations were observed. The expression of collagen II in chondrocytes was detected by immunocytochemical method. RESULTS: The chondrocytes derived from the endplate of intervertebral disc expressed collagen II. After 13 days of culture, the chondrocytes of generation III showed that the ability of cell division descended, the nucleoli became unclear, the cells deformed obviously, fusiform shape with weak optical activity appeared, and the intercellular space was enlarged. There were vacuoles and lipid droplets in cytoplasm. The synthesis of collagen II, as well as the cell proliferation rate, descended notably. All results showed the natural degeneration process of the chondrocytes. CONCLUSION: The in vitro natural degeneration model of chondrocytes derived from endplate of intervertebral discs of rats was successfully established. This can offer the cytological basis for study on the mechanism of intervertebral disc degeneration.

To explore the expression potential of heterogeneous genes using the backbone of infectious bronchitis virus (IBV) Beaudette strain, the ectodomain region of the Spike gene (1,302 bp) of IBV H120 strain was amplified by RT-PCR and replaced into the corresponding location of the IBV Beaudette strain full-length cDNA. This recombinant was designated as BeauR-H120(S1). BeauR-H120(S1) was directly used as the DNA template for the transcription of viral genomic RNA in vitro. Then, the transcription product was transfected into Vero cells by electroporation. At 48 h post-transfection, the transfected Vero cells were harvested, and passaging continued. A syncytium was not observed until the recombinant virus had passed through four passages. The presence of rBeau-H120(S1) was verified by the detection of the replaced ectodomain region of the H120 Spike gene using RT-PCR. Western blot analysis of rBeau-H120 (S1)-infected Vero cell lysates demonstrated that the nucleocapsid (N) protein was expressed, which implied that rBeau-H120(S1) could propagate in Vero cells. The TCIDs0 and EIDs0 data demonstrated that the titer levels of rBeau-H120(S1) reached 10(590+/-0.22)TCID50/mL and 10(6.13+/-0.23)EID50/mL in Vero cells and 9-day-old SPF chicken embryos, respectively. Protection studies showed that the percentage of antibody-positive chickens, which were vaccinated with rBeau-H120(S1) at 7 days after hatching, rose to 90% at 21 days post-inoculation. Inoculation provided an 85% rate of immune protection against a challenge of the virulent IBV M41 strain (103EID50/chicken). This recombinant virus constructed using reverse genetic techniques could be further developed as a novel genetic engineering vaccine against infectious bronchitis.
Animals ; Cercopithecus aethiops ; Chick Embryo ; Chickens ; Coronavirus Infections ; veterinary ; virology ; Infectious bronchitis virus ; chemistry ; genetics ; growth & development ; metabolism ; Poultry Diseases ; virology ; Protein Structure, Tertiary ; Spike Glycoprotein, Coronavirus ; chemistry ; genetics ; metabolism ; Transfection ; Vero Cells

Objective To investigate the management of external iliac artery mycotic hemorrhage after kidney transplantation. Methods A case of external iliac artery mycotic hemorrhage after kidney transplantation managed by the use of hypogastric artery autograft was reported with review of the literature.The massive blooding occurred 3 times after kidney transplantation in a male patient 25 years of age on the 22nd,24th and 38th day after transplantation.The blooding amounted to 800 ml,2500 ml and 3800 ml respectively.The blood loss was replaced and prompt surgical exploration was carried out with the blooding site at the anastomosis sutured up on the 1st and 2nd episode of bleeding.On the 3rd occurrence of bleeding, the diseased external iliac artery segment, about 2cm in length, was resected and the gap was replaced by a 3cm long hypogastric artery autograft. Results The blood flow through the repaired external iliac artery and the blood supply to the lower extremity was adequate.Periodic hemodialysis had been restored and the patient waited for reimplantation. Conclusions External iliac artery mycotic hemorrhage after kidney transplantation is a serious and fatal complication.Simple arterial repair is usually noneffective.Resection of the diseased mycotic segment of the external iliac artery with repairing of the gap with a hypogastric artery autograft is rational,feasible and simple.The procedure is highly recommended.

Objective To investigate the association between Metabolic syndrome and colon cancer.Methods A literature search was performed through PubMed,Ovidsp,CNKI and Wangfang Data within the time limit of January 1 990 to May 2014.Ac-cording to the inclusion and exclusion criteria,the studies were screened and the data were extracted.Then Meta-analysis was per-formed using Stata Statistical Software version 12.0.Results A total of 8 studies(6 cohort studies and 2 case-control studies)met the inclusion criteria.Meta analysis showed that patients with Metabolic syndrome had a higher risk of colon cancer incidence com-pared with the control group without Metabolic syndrome(OR =1.43,95%CI :1.23 - 1.66,P <0.05 ).Stratified analysis showed Metabolic syndrome had a higher risk of colon cancer incidence in male(OR=1.50,95%CI :1.22-1.84,P <0.05),but in female, this association was not found(OR=1.39,95%CI :0.98- 1.96,P =0.07).In addition,Meta analysis showed that Metabolic syn-drome was not associated with an increased risk of colon cancer mortality(OR=1.22,95%CI :0.92-1.63,P =0.1 7).Conclusion This Meta analysis indicated a positive association between Metabolic syndrome and colon cancer incidence in male,but not in fe-male.Metabolic syndrome might not be associated with an increased risk of colon cancer mortality,yet it needs more prospective co-hort studies to confirm the conclusion.

OBJECTIVE: To study the effects of Yiqi Huayu Recipe and its decomposed formulas-medicated sera on expressions of bcl-2, Bax and caspase-8 of apoptotic anulus fibrosus cells in rats. METHODS: Immunohistochemical and integral optical density analytic methods were used to observe the effects of Yiqi Huayu Recipe-, Yiqi Recipe-, Huayu Recipe-medicated sera and insulin-like growth factor 1 (IGF-1) on the expressions of bcl-2, Bax and caspase-8 of apoptotic anulus fibrosus cells in rats induced by anti-Fas antibody. RESULTS: As compared with apoptosis group, bcl-2 expression was higher, Bax and caspase-8 expressions were lower in Yiqi Huayu-treated, Yiqi-treated, Huayu-treated and IGF-1 groups (P<0.01). As compared with Yiqi-treated group and Huayu-treated group, Bax expression was lower in Yiqi Huayu-treated group (P<0.05). CONCLUSION: Yiqi Huayu Recipe and its decomposed formulas can delay degeneration of the cervical intervertebral disc, which may be due to its action in regulating the expressions of bcl-2, Bax and caspase-8.

OBJECTIVE: To study the effects of Yiqi Huayu Recipe on the gene expression pattern in normal and apoptotic chondrocytes in the cervical intervertebral disc of rats. METHODS: The intervertebral disc endplates of rats were digested enzymatically. The apoptosis of the chondrocytes was induced by anti-Fas antibody. BiostarR-40s microarray chips were used to investigate the gene expression pattern in chondrocytes in the normal control, apoptosis and Yiqi Huayu Recipe groups. The results were scanned with Scan Array 4000 and analyzed with GenePix Pro 3.0, and then subjected to standardization and ratio analysis. RESULTS: In the apoptosis group, 30 kinds of genes expressed in cervical intervertebral disc chondrocytes were screened out, in which 10 were up-regulated (ratio>2) and 20 down-regulated (ratio<0.5) as compared with the normal control group. On the other hand, in the Yiqi Huayu Recipe group, 97 kinds of genes expressed in cervical intervertebral disc chondrocytes were screened out, in which 44 were up-regulated (ratio>2) and 53 down-regulated (ratio<0.5) as compared with the apoptosis group. CONCLUSION: There are some signal transduction pathways that control the apoptosis of the intervertebral disc chondrocytes. Yiqi Huayu Recipe regulates the gene express of the apoptotic chondrocytes in intervertebral disc. The study gives a further understanding to the mechanism of the cervical spondylosis and enriches the theories of qi and blood of traditional Chinese medicine.

0.05). Positive expression of 2 or all 3 markers of neuroendocrine cell was detected in all 16 samples; negative expression of all 5 peptide hormones was observed in only 25% of samples. At a mean follow-up of 44.2 months (range 4 months-7 years ), the mean time from resection to relapse or metastasis was 29.8 months; 7 cases survived more than 5 years, of which 2 have survived for 7 years. Two cases, who subjected non-operative treatment, survired 39,61 months, respectively.Conclusions Clinical manifestations of NPNEC are non-specific. Only a few tumors in NPNEC patients do not yield peptide hormones. Treatment of NPNEC (including patients with liver metastasis) with aggressive surgical resection followed by interventional methods can result in excellent overall long-term survival.