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.

Adult ; Delivery of Health Care ; Female ; Health Education ; Health Knowledge, Attitudes, Practice ; Humans ; Male ; Occupational Health

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

OBJECTIVETo investigate the association of male reproductive tract infection (RTI) with semen parameters and sperm DNA damage.

METHODSWe classified 1 084 males attending the infertility clinic into an RTI group (n = 300) and a non-RTI control group (n = 784). According to the WHO standards, we obtained routine semen parameters, detected sperm morphology, and determined the sperm DNA fragmentation index (DFI) by sperm chromatin structure assay.

RESULTSThere were statistically significant differences between the RTI and control groups in the semen volume ( [2.58 ± 1.20] vs [3.00 ± 2.10] ml), grade a + b sperm ([50.6 ± 17.2] vs [53.2 ± 15.8]%), grade d sperm ( [39. 8 ± 17.8] vs [36.5 ± 16.2]%), and total sperm count ([218.5 ± 185.0 ] vs [278.5 ± 375.5 ] x 10(6)/ejaculate) (all P < 0.05), but not in the males' age, sperm concentration or pH value (P > 0.05). The percentage of morphologically normal sperm was significantly lower ([3.46 ± 2.90] vs [4.61 ± 3.60%, P < 0.05) but the DFI was markedly higher in the RTI group than in the control ([19.4 ± 11.4] vs [15.2 ± 8.8]% , P < 0.01). The percentage of the cases with DFI > 30% was remarkably higher (13.0 vs 5.74% ) while that of the cases with DFI < 10% dramatically lower in the former than in the latter (16.0 vs 28.0%). The level of seminal plasma elastase was correlated negatively to sperm concentration, sperm count, and the percentage of morphologically normal sperm (P < 0.05) but positively to DFI and grade d sperm (P < 0.05 or P < 0.01).

CONCLUSIONMale reproductive tract infection not only affects semen parameters and sperm morphology but also causes serious sperm DNA damage.

DNA Fragmentation ; Humans ; Infertility, Male ; physiopathology ; Male ; Reproductive Tract Infections ; physiopathology ; Semen ; chemistry ; Semen Analysis ; Sperm Count ; Spermatozoa ; pathology

Objective To investigate the correlation between dose volume histogram(DVH)of tumor targets and organs at risk(OAR)at CT-image based 192Ir brachytherapy and effects and complications for patients with locally advanced cervical cancer. Methods Ten patients with FIGO stage ⅢB cervical cancer received CT image-based 192Ir intracavitary brachytherapy after 54 Gy of three-dimentional four-field pelvic external beam radiotherapy and concurrent weekly cisplatin chemotherapy. Before each brachytherapy,CT images were acquired with applicators in place. Gross tumor volume(GTV), clinical target volume (CTV)and OAR were contoured and inverse treatment planning was designed and optimized by using PLATO treatment planning system. Conventional two-dimensional plans were also designed for comparison.The total intracavitary brachytherapy dose was 30 -42 Gy in 5 -7 fractions. The patients were followed, and the local control and complications were analyzed. The biologically equivalent dose(BED)and biologically equivalent dose in 2 Gy fractions(BED2)for GTV, CTV and OAR were calculated. The minimum dose in the most irradiated tissue volume 2 cm3(D2 cm3)adjacent to the applicator of the sigmoid colon, rectum,bladder and small bowel was determined from the DVH. Results The 1-year local pelvic control rate was 90% and grade 1-2 late complication of sigmoid colon and rectum was 50%. No grade 3 or more complications developed. On CT-image based planning, the BED and BED2 to 90% of the CTV(D90)were 95.50 Gy ± 7. 81 Gy and 79. 73 Gy ± 6. 57 Gy. The BED and BED2 to 90% of the GTV(D90)were 101.86 Gy ± 7.27 Gy and 84. 95 Gy ± 6. 1 Gy. The volume enclosed by 90% of prescribed dose(V90)for GTV and CTV were 92% ±4% and 87% ±7% respectively. The D2cm3 for rectum and sigmoid colon were 74. 97 Gy ±1.64 Gy and 67. 93 Gy ± 4. 30 Gy(EQD2, α/β = 3). Comparing with 2D brachytherapy plans , CT - image based planning has improved D90 and V90 for GTV and CTV with similar dose at point A and rectum reference point. Conclusions Computer tomography-image based 192Ir brachytherapy has resulted in the better dose distribution to the tumor targets with excellent tumor control and acceptable toxicity.

Objective To investigate the relationship between parvovirus B19 infection and systemic lupus erythematosus(SLE).Methods Sera from 51 patients with SLE and 20 normal controls were exam- ined for IgG and IgM antibodies against parvovirus BI9 by ELISA(produced by IBL Hamburg Company, Germany).Results Anti-Bl9 antibodies were found more frequently in sera from SLE patients than in normal controls,IgM and [gG antibodies were detected in 11(17.65%)and 9(21.57%)of 51 SLE pa- tients respectively.It was observed that the SLEDAI scores were higher in patients with B19 IgM positive group than those of the negative group(P＜0.05).The sera levels of ALT/AST were elevated more frequently in patients with BI9 IgM positive group than in negative group(P＜0.05).However,there was no association between the presence of anti-IgM and clinical manifestations in patients with SLE(P＞0.05).Five SLE pa- tients with positive B19 IgM were followed up for 2 years.SLEDA1 scores of these patients were markedly decreased(P＜0.05),but the levels of auto-antibodis(ANA,dsDNA)didn't change(P＞0.05).And the levels of ALT/AST decreased as usual.Conclusions It is suggested that parvovirus B19 infection may ex- acerbate the onset of SLE,but we eould not find a correlation between parvovirus B19 infection and prog- nosis of the disease.

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.