Objective To explore the feasibility and superiority of the simple controllable aerocyst pressurization wrapped-up bondage for battlefield first aid in the future high tech local war. Methods The disposable infusion bag is wrapped up in the bottom of the sling in stead of partial surgical dressing. Sphygmomanometer, pressure gauge and heparin hat are connected. Inflate and pressurize the sphygmomanometer and keep the pressure between 3kPa and 5kPa. Results The structure of this bandage is simple and can be operated easily. The pressure is controlled nimblely and conveniently. Except for the accurate effect, it is versatile and inexpensive. In addition, it can be employed in the bone fracture.

Adenocarcinoma ; diagnosis ; pathology ; Carcinoma, Squamous Cell ; diagnosis ; pathology ; Cervical Intraepithelial Neoplasia ; diagnosis ; pathology ; Female ; Humans ; Precancerous Conditions ; diagnosis ; pathology ; Retrospective Studies ; Uterine Cervical Neoplasms ; diagnosis ; pathology ; Vaginal Smears ; methods

trimester. Conclusion Moderate and severe PIH early developed during pregnancy could increase the risk of perinatal mortality, while cesarean delivery could decrease the risks in women with PIH.

OBJECTIVETo investigate the association between oral neoplasm genetic susceptibility and genetic polymorphism of p53 intron 7.

METHODSThe intron 7 ApaI polymorphism of p53 was analyzed in 95 oral neoplasm patients and 105 healthy individuals by utilizing polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) genotyping assay technique, and direct sequencing was performed in 30 cases which were selected from the patients and controls by random sampling.

RESULTSIn oral neoplasms cases, haplotype combinations were T-G 43.2%, C-T 56.8%, and frequencies of genotype were T-G/T-G 15.8%, C-T/T-G 54.7%, C-T/C-T 29.5%, while in controls they were T-G 30.9%, C-T 69.1% and T-G/T-G 10.5%, C-T/T-G 41.0%, C-T/C-T 48.5%. There was a significant difference in the allelic frequency and the genotypical distributions between the oral neoplasm patients and the controls. The individuals with the T-G allele had a slight increasing neoplasm risk than individuals with C-T allele; the OR for T-G versus C-T was 1.69 (95% CI, 1.12 - 2.51). The risk of suffering from oral neoplasms was higher in the individuals of T-G/T-G genotype and of T-G/C-T genotype than in individuals of C-T/CT genotype with odds ratio of 2.48 versus 2.20.

CONCLUSIONSThere are two polymorphic points in the 7th intron of human p53 gene, which could be associated with genetic susceptibility of oral neoplasms. T-G allele may be the risk factor of oral neoplasms.

Adult ; Aged ; Aged, 80 and over ; Case-Control Studies ; Female ; Gene Frequency ; Genetic Predisposition to Disease ; Genotype ; Humans ; Introns ; Male ; Middle Aged ; Mouth Neoplasms ; genetics ; Polymorphism, Genetic ; Tumor Suppressor Protein p53 ; genetics

OBJECTIVETo investigate the relationship between differential expression of VEGF and its receptors and clinical characteristics of childhood acute lymphoblastic leukemia (ALL).

METHODSExpressions of VEGF and its receptors (Flt-1, KDR) were assayed by ELISA and RT-PCR in healthy donors(20 cases), ALL patients in remission (20 cases), with low risk (29 cases) and with high risk (10 cases). The clinical data of all the patients and volunteers enrolled in this study were collected and analyzed according to the expression of VEGF and its receptors.

RESULTSThe expressions of VEGF were (574.37 +/- 208.45) ng/L, (387.93 +/- 175.86) ng/L, (135.80 +/- 111.28) ng/L and (91.16 +/- 41.34) ng/L in patients with high risk, standard risk, in remission and healthy donors, respectively. Expression levels of VEGF receptors were downwards with risk grades. The clinical manifestations were also in accord with the expression levels of VEGF and its receptors.

CONCLUSIONALL patients with highly expressed VEGF and its receptors are usually with higher tumor burden, and refractory treatment. Detection of VEGF and its receptors might be one of prognostic marker for ALL treatment.

Adolescent ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Male ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; metabolism ; RNA, Messenger ; genetics ; Receptors, Vascular Endothelial Growth Factor ; genetics ; metabolism ; Vascular Endothelial Growth Factor A ; genetics ; metabolism

OBJECTIVETo understand the current status and its changing patterns of perinatal health care in some southern and northern areas of China from 1994 to 2000.

METHODSData was collected in 13 counties/cities covered by Perinatal Health Care Surveillance System which was part of the Sino-American cooperative project on neural tube defects prevention, established in 1992. The study population consisted of 368 589 women who delivered single live births of at least 20 gestational weeks from 1994 through 2000. Chi-square test was employed to test the difference on the proportions of women with prenatal checkup, women with early prenatal care onset, women with at least five prenatal visits, hospital delivery versus home delivery as well as the proportion of women with at least three postpartum visits. Two-way ANOVA was used to test the differences of mean of gestational weeks at first prenatal visit and the mean of prenatal visits between different year and areas.

RESULTSThe proportion of women with prenatal checkup remained over 99.0% from 1994 through 2000. The mean of gestational weeks at first prenatal visit changed from 13.1 weeks in 1994 to 10.7 weeks in 2000. The proportions of women with early prenatal care onset increased from 65.5% in 1994 to 79.4% in 2000 while women with at least five prenatal visit increasing from 34.1% to 71.8%, hospital delivery increasing from 91.3% to 98.8%, home delivery decreasing from 5.6 % to 0. 6%, women with at least three postpartum visits increasing from 80.5 % to 95.1%. Except for the proportion of women with early prenatal care onset, other proportions in northern areas were lower than those in southern areas in the same year. Greater differences between urban and rural areas in northern areas were found than in southern areas.

CONCLUSIONThe utilization of perinatal health care services was greatly improved in both southern and northern areas from 1994 to 2000. However, there were still obvious differences in the perinatal health care services between northern and southern areas as well as between urban and rural areas in northern China.

China ; Female ; Health Surveys ; Humans ; Perinatal Care ; utilization ; Pregnancy ; Rural Health ; Urban Health

This study was aimed at the transport across blood-brain barrier (BBB) of polysorbate-80 modified neurotoxin loaded polybutylcyanoacrylate nanoparticle (P-80-NT-NP) and its cytotoxicity. An in vitro model of BBB using rat brain microvascular endothelial cells (rBMECs) was established. The cytotoxicity of P-80-NT-NP was measured by the MTT assays, where neurotoxin (NT), nanoparticle (NP), neurotoxin nanoparticle (NT-NP) as control, and the permeability of P-80-NT-NP was determined by using of Millicell insert coculture with rBMECs and fluorescence spectrophotometry. MTT results showed that NT, NP, NT-NP and P-80-NT-NP were avirulent to rBMECs when the concentration of NT was lower than 200 ng x mL(-1). But the cytotoxicity of NP, NT-NP and P-80-NT-NP would be augmented accordingly as concentration increased (P < 0.01), causing obvious reductions of cell survival rate, with no significant difference between them (P > 0.05). When the concentration of NT was 150 ng x mL(-1), the permeability on rBMECs of P-80-NT-NP and NT-NP were both significantly higher than that of NT (P < 0.01), and the permeability of P-80-NT-NP was greater than that of NT-NP (P < 0.05). In conclusion, polysorbate-80 modified neurotoxin nanoparticles can transport across the BBB, while concentration of NT is greater than 200 ng x mL(-1), P-80-NT-NP has a little cytotoxicity against rBMECs.
Animals ; Biological Transport ; Blood-Brain Barrier ; Brain ; blood supply ; Capillary Permeability ; Cell Survival ; drug effects ; Cells, Cultured ; Drug Carriers ; Electric Impedance ; Enbucrilate ; chemistry ; toxicity ; Endothelial Cells ; cytology ; metabolism ; Female ; Male ; Nanoparticles ; Neurotoxins ; administration & dosage ; pharmacokinetics ; Particle Size ; Polysorbates ; chemistry ; toxicity ; Rats ; Rats, Sprague-Dawley

BACKGROUNDBone morphogenetic protein (BMP)-2, alkaline phosphatase (ALP), and collagen type I are known to play a critical role in the process of bone remodeling. However, the relationship between mechanical strain and the expression of BMP-2, ALP, and COL-I in osteoblasts was still unknown. The purpose of this study was to investigate the effects of different magnitudes of mechanical strain on osteoblast morphology and on the expression of BMP-2, ALP, and COL-I.

METHODSOsteoblast-like cells were flexed at four deformation rates (0, 6%, 12%, and 18% elongation). The expression of BMP-2 mRNA, ALP, and COL-I in osteoblast-like cells were determined by real-time quantitative reverse transcription polymerase chain reaction, respectively. The results were subjected to analysis of variance (ANOVA) using SPSS 13.0 statistical software.

RESULTSThe cells changed to fusiform and grew in the direction of the applied strain after the mechanical strain was loaded. Expression level of the BMP-2, ALP, and COL-I increased magnitude-dependently with mechanical loading in the experimental groups, and the 12% elongation group had the highest expression (P < 0.05).

CONCLUSIONMechanical strain can induce morphological change and a magnitude-dependent increase in the expression of BMP-2, ALP, and COL-I mRNA in osteoblast-like cells, which might influence bone remodeling in orthodontic treatment.

Alkaline Phosphatase ; metabolism ; Analysis of Variance ; Animals ; Bone Morphogenetic Protein 2 ; metabolism ; Cell Line ; Collagen ; metabolism ; Collagen Type I ; metabolism ; Mice ; Osteoblasts ; cytology ; metabolism

In order to explore what role relative cytokines play in acute GVHD (aGVHD) of mice transplanted with H-2 haploidentical nonmyeloablative bone marrow, a murine model was established by using C57BL/6J mouse as donor and (C57BL/6J x BALB/C) F1 mouse as the recipient. The recipient mice were given CsA and mycophenolate mofetile (MMF) for prophylaxis of aGVHD. The expression levels of IL-2, INFgamma, IL-4 and IL-10 in the spleen were detected by semi-quantitative RT-PCR at different time points after transplantation. The results showed that the expression levels of these cytokines increased slightly in the group only received nonmyeloablative conditioning. The expression levels of IL-2 and INF-gamma elevated significantly after transplantation in group 2 (without aGVHD prophylaxis), peaked at day 21 and day 14 respectively, then dropped rapidly, returned to the basal levels at day 35. The study on kinetic pattern of expression of IL-2 and INF-gamma in group 3 (with aGVHD prophylaxis) gave a similar result to group 2, but the peak value of cytokine expression in group 3 was much lower than that in group 2. The expression of IL-4 in Group 2 and group 3 all peaked at day 14, but the peak value in group 3 was higher than that in group 2, and decreased slowly in group 3. The expression of IL-10 increased gradually after transplantation, peaked at day 14, decreased after day 21, elevated again until day 35. It is concluded that the expression levels of these cytokines in the spleen all increase after H-2 haploidentical nonmyeloablative bone marrow transplantation. CsA and MMF can reduce the incidence and severity of aGVHD by down-regulating the expression levels of IL-2 and INF-gamma.
Animals ; Bone Marrow Transplantation ; immunology ; methods ; Cyclosporine ; administration & dosage ; Cytokines ; genetics ; Gene Expression ; drug effects ; Graft vs Host Disease ; prevention & control ; H-2 Antigens ; genetics ; Interferon-gamma ; genetics ; Interleukin-2 ; genetics ; Kinetics ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mycophenolic Acid ; administration & dosage ; analogs & derivatives ; Reverse Transcriptase Polymerase Chain Reaction

OBJECTIVETo study the relationship between the serum levels of adipocyte fatty acid-binding protein (A-FABP) level and type 2 diabetes mellitus in a community population.

METHODSA total of 255 residents (aged 45-85 years) were randomly selected from 4 communities in Guangzhou to examine the fasting plasma glucose (FPG), 2-hour postprandial blood glucose (2hPG), glycosylated hemoglobin (HbA1c), body mass index (BMI), waist circumference (WC), hip circumference (HC), waist-to-hip ratio (WHR), blood pressure (BP), triglyceride (TG), cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C). The insulin resistance index (HOMA-IR) was calculated and enzyme-linked immunosorbent assay (ELISA) was used to determine serum A-FABP and fasting insulin (FINs) levels. The cases were divided into 3 groups according to blood glucose level, namely the normal group (group A, n=90), impaired glucose tolerance group (group B, n=85), and diabetic group (group C, n=80), and the A-FABP levels were compared between them.

RESULTSCompared with group A, the subjects in groups B and C showed significantly increased FPG, 2hPGh, HbA1C, HOMA-IR, systolic blood pressure (SBP), and waist circumference (P=0.000) as well as FINs, WHR, diastolic blood pressure (DBP) , TG, and HDL-C (P=0.038, 0.047, 0.01, and 0.046, respectively). Compared with group B, group C showed significantly higher FPG, 2hPG, HbA1c, TG, and SBP (P=0.00), with also higher levels of FINs, BMI, WC, DBP, and HDL-C (P=0.012, 0.006, 0.03, 0.019, and 0.029, respectively). A-FABP increased significantly in the order of group A, B, and C (P=0.00), and this result was not affected by the differences in age between the 3 groups (P>0.05). A-FABP level was positively correlated to FPB, 2hPG, FINS, WHR, BMI, WC, SBP, and HOMA-IR, but inversely to TG and HDL-C (P=0.00).

CONCLUSIONElevated serum A-FABP is closely related to glucose metabolism disorder, and A-FABP may serve as a useful marker for the occurrence and development of type 2 diabetes in the community population.

Adipocytes ; chemistry ; Aged ; Aged, 80 and over ; Diabetes Mellitus, Type 2 ; blood ; etiology ; Fatty Acid-Binding Proteins ; blood ; Female ; Humans ; Male ; Middle Aged ; Serum ; metabolism