Diagnostic Errors ; Female ; Humans ; Middle Aged ; Thyroid Nodule ; diagnostic imaging ; Ultrasonography ; Zenker Diverticulum ; diagnostic imaging

Objective To learn about electrolytes imbalance and water intoxication in children treated with high-dose cyclophosphamide(HD-CTX)as well as the renal function and the relative clinical symptoms,and study the mechanisms of hyponatremia.Methods Patients' clinical manifestations during and after HD-CTX therapy were summarized.Serum electrolytes and creatinine(Cr)were detected before and 6 or 8 hours after therapy with HD-CTX,antidiuretic hormone(ADH) in some patients were measured.Results Of 108 therapeutic cases 24 accompanied with vomits and 22 with a decreased urine output,in which 4 developed eyelid or ankle edema.Seven cases had neural-sarcous symptoms and 5 cases had abdominal pain or diarrhea.Serum sodium decreased significantly after HD-CTX[(139.12?3.30) mmol/L vs(134.06?8.23) mmol/L] in whom rechecked after 6 h,(141.77?3.59) mmol/L vs(133.26?6.41) mmol/L in those rechecked after 8 h(Pa0.05].Serum Cr increased 8 h after therapy[(29.95?13.61) ?mol/L vs(43.33 ? 17.25) ?mol/L P

Objective To explore the biological characteristics and karyotype of bone marrow-derived mesenchymal stem cells(MSCs)in patients with systemic lupus erythematosus(SLE)and hematopoietic sup- port of MSCs.Methods MSCs were isolated from bone marrow of 11 SLE patients and 6 healthy controls by density centrifugation and adhesive culture in vitro.The surface markers were detected by flow cytometry (FCM).The morphological changes of MSCs were observed in primary and passage cultures.The growth curves were assayed.The karyotype of MSCs was detected by blocking cellular mitosis with colchicines.The MSCs from SLE patients and healthy controls were infused to ICR mice after high-dose chemotherapy.The changes of peripheral blood counts of the mice were recorded.Results Approximately(6～9)?10~9 MSCs from SLE were obtained after 5 passages and their growth was slower than normal controls(P＜0.01).Both groups were positive for CD29,CD44 and CD105,and negative for CD14,CD34,CD45 and HLA-DR.MSCs from SLE had a normal karyotype.MSCs infusions of the two groups were accompanied by no adverse event and the recovery of white blood cell,hemoglobin and platelet count was quicker when compared with the controls(P＜0.05).Conclusion MSCs from SLE have demonstrated abnormalities in expansion in vitro.MSCs from SLE have a normal karyotype.Ex vivo MSCs infusion from SLE patients can support hematopoiesis as normal MSCs.

Aged, 80 and over ; Antibodies, Monoclonal ; metabolism ; Carcinoma, Squamous Cell ; metabolism ; pathology ; Diagnosis, Differential ; Granuloma ; metabolism ; pathology ; Humans ; Keratins ; immunology ; Male ; Mucin-1 ; metabolism ; Skin Neoplasms ; metabolism ; pathology

BACKGROUND:Santoni put forward the cortical bone trajectory technology by changing the traditional pedicle screw placement for lumbar internal fixation in order to obtain better control of the screw and bone in 2009. OBJECTIVE:To analyze biomechanical stability of cortical bone trajectory system in the lumbar fusion. METHODS:Twenty fresh newborn calf L3/4, L5/6 motion segment specimens were obtained, and their ranges of motion were detected under different states, as normal controls. Subsequently, twenty samples were divided into cortical bone trajectory screw group and traditional pedicle screw group, which underwent cortical bone trajectory screw fixation combined with posterior lumbar fusion and traditional pedicle screw fixation combined with posterior lumbar fusion, respectively. Without destruction, ranges of motion were detected under different states in both groups. In the revision group, after the test in the traditional pedicle screw group, screw was withdrawn, and cortical bone trajectory screw was used to detect its range of motion under different states. RESULTS AND CONCLUSION:Ranges of motion at bending to the left and right, anteflexion, posterior extension and axial rotation were significantly lower in the cortical bone trajectory screw group and traditional pedicle screw group than in the normal control group (P<0.05). No significant difference in bending to the left and right, anteflexion, posterior extension and axial rotation was detected between the cortical bone trajectory screw and revision groups and traditional pedicle screw group (P>0.05). These results confirmed that cortical bone trajectory technology combined with posterior lumbar fusion can obtain identical stability as the traditional pedicle screw fixation combined with posterior lumbar fusion. Simultaneously, it is a new choice for revision after traditional pedicle screw fixation.

BACKGROUND: Enteral immunonutrition (EIN) refers to addition of some specific nutrients in enteral nutrition (EN), which can help to increase the immune function, and reduce the inflammatory reaction and septic complications. This study aimed to determine whether EIN can improve the immune function in multiple trauma patients. METHODS: Thirty-two patients with multiple trauma who had been admitted to the general ICU of Changzheng Hospital, Shanghai, from March 2007 to May 2008, were randomly divided into two groups: an enteral immunonutrition group (EIN group, n=16) and an enteral nutrition group (EN group, n=16). EIN suspension (RuiNeng produced by Sino-Swed Co., Ltd) and ordinary nutrition liquid (RuiSu produced by Sino-Swed Co., Ltd) were given to patients of the EIN group and EN group respectively for at least for 14 days. Peripheral blood lymphocyte count (TLC), immunoglobulin (IgG, IgM, IgA), and T-lymphocyte subsets (CD3, CD4, CD8, CD4 / CD8) were detected on the 1st day after grouping, and the 7th day and 14th day after nutritional support. RESULTS: TLC, IgG, IgM, IgA, CD4 and CD4/CD8 ratio were significantly higher in the EIN group on the 7th and 14th day than that on the 1st day (P<0.05), and continually increased with a prolonged time of EIN. The parameters of immune function in the EN group on the 7th day didn't change significantly compared with those on the 1st day after grouping; on the 14 th day, TLC, IgG, IgM, IgA, CD4 and CD4/CD8 ratio were significantly higher than those on the 1st day after grouping (P<0.05), but were significantly lower than those in the EIN group on the 14th day (P<0.05). CONCLUSION: Compared with the general formula EN, EIN is more helpful for the recovery of humoral and cellular immune function in the early post-multitraumatic phase.

Objective To summarize the experience of the therapy and diagnosis of thoracictuberculosis. Methods Diagnosis and operation of 163 cases of thoracictuberculosis were analyzed.Results 163 cases of thoracic- tuberculosis were treated with focuspurge upon two weeks' anti-tuberculosis treatment.153 cases were cured upon one operation.10 cases suffered incision delayed healing and there were no recurrence cases.Conclusion Thoraeictu- berculosis was treated with focuspurge upon two weeks anti-tuberculosis treatment before operation.Complete purge of focus and postoperative compression band and residual cavity filled with music flap were important measures to prevent incision delayed healing and recurrence.

Objective:To value the application of two bacteria colony-PCR methods in the screening of phage antibody library. Methods:Five positive monoclonal bacterium were respectively suspended in either deionized water or 0.1% Triton X-100, and then boiled to be used as template in PCR. . The DNAs products of PCR were extracted and digested by two enzymes, and then determined by electrophoresis. Results:The inserted genes were detected in all the 5 clones after PCR and enzyme digestion .Conclusion:Bacteria colony-PCR can be used in screening positive recombinant colonies. The bacteria colony-PCR method with bacteria colonies suspended in deionized water is valuable in large scale positive recombinant bacterium screening.

Objective To develop and validate a simple and reliable HPLC method for the analysis of L-carnitine in human seminal plasma and to investigate its clinical significance as a potentially useful index of infertile.Methods After proteins in seminal plasma are precipitated with acetonitrile,L-carnitine in seminal plasma was derivatized to form its ester.HPLC separation of the sample solution was performed on a Lichrospher SiO_2 column and detected by ultraviolet absorbance at 260 nm.A mobile phase composed of acetonitrile-citrie acid buffer(containing 12 mmol/L triethanolamine,pH 5.0)was found to be the most suitable for this separation at a flow rate of 1.2 ml/min and enabled the baseline separation of the L-carnitine from interferences with isocratic elution.The L-carnitine levels in seminal plasma were studied in both 87 patients with infertility and 30 control subjects.Results Under the chromatographic conditions described, the L-carnitine derivative had a retention time of approximately 13 min.Good separation and detectability of L-carnitine in human seminal plasma sample were obtained.The method proved to be linear in the range of L-carnitine from 0 ?mol/L to 1000 ?mol/L.The relative standard deviations of within-and between-assay for L-carnitine analysis were 1.23% and 1.36%,respectively.The recoveries were 91.6% -96.5% for the human seminal plasma samples.L-carnitine concentrations in the populations were(392.7?107.2)?mol/L in the fertile group(n=30),(270.0?83.9)?mol/L in asthenozoospermia group(n=29),(187.9? 43.9)?mol/L in oligozoospermia group(n=19)and(175.7?67.1)?mol/L in oligoasthenozoospermia group(n=39).The large difference(P0.05).Conclusion The determination of L-carnitine level in seminal plasma may prove useful as a potentially biochemical marker of fertility and this is a useful guidance for the clinic therapy and the mechanismic study on the male reproduction.